WO2022214084A1 - Periscopic photographing module and variable-focus photographing module - Google Patents

Periscopic photographing module and variable-focus photographing module Download PDF

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Publication number
WO2022214084A1
WO2022214084A1 PCT/CN2022/085891 CN2022085891W WO2022214084A1 WO 2022214084 A1 WO2022214084 A1 WO 2022214084A1 CN 2022085891 W CN2022085891 W CN 2022085891W WO 2022214084 A1 WO2022214084 A1 WO 2022214084A1
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WO
WIPO (PCT)
Prior art keywords
driving
carrier
drive
camera module
piezoelectric
Prior art date
Application number
PCT/CN2022/085891
Other languages
French (fr)
Chinese (zh)
Inventor
赵波杰
袁栋立
叶林敏
黄桢
王启
阙嘉耀
周胄
方银丽
熊实
吴志涵
傅强
洪超
廖书伟
沈耀栋
王海涛
Original Assignee
宁波舜宇光电信息有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202110383465.XA external-priority patent/CN115202130A/en
Priority claimed from CN202110418011.1A external-priority patent/CN115225780A/en
Priority claimed from CN202110489175.3A external-priority patent/CN115268008B/en
Application filed by 宁波舜宇光电信息有限公司 filed Critical 宁波舜宇光电信息有限公司
Priority to CN202280027260.0A priority Critical patent/CN117203583A/en
Publication of WO2022214084A1 publication Critical patent/WO2022214084A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Definitions

  • the present application relates to the field of camera modules, and in particular, to a periscope camera module and a zoomable periscope camera module, wherein the periscope camera module and some of the driving mechanisms in the variable zoom camera module are A piezoelectric actuator is used as a driver to provide a sufficiently large driving force and relatively better driving performance.
  • the piezoelectric actuator is arranged in the variable-focus periscope camera module or the variable-focus camera module in a reasonable manner to meet the requirements of the periscope camera module or the variable-focus camera module.
  • the design requirements of the camera module in terms of function, structure and size.
  • the existing driving element for driving the optical lens is an electromagnetic motor, for example, a voice coil motor (Voice Coil Motor: VCM), a shape memory alloy actuator (Shape of Memory Alloy Actuator: SMA), and the like.
  • a voice coil motor Voice Coil Motor: VCM
  • a shape memory alloy actuator Shape of Memory Alloy Actuator: SMA
  • the existing voice coil motor and shape memory alloy driver are only suitable for driving optical lenses with a weight of less than 100mg, that is, if the weight of the optical lens exceeds 100mg, the existing drivers will not be able to meet the application requirements of the camera module .
  • the camera module configured in the terminal device is also required to be able to realize the function of zoom shooting, for example, the requirement of realizing long-range shooting through optical zoom.
  • the optical zoom camera module not only includes a lens with a larger size and weight, that is, requires the driver to provide a larger driving force, but also requires The drive used to drive the lens movement provides drive performance with higher precision and longer travel.
  • the above technical requirements cannot be met by the existing electromagnetic drive motors. Meanwhile, the existing electromagnetic actuator also has the problem of electromagnetic interference.
  • An advantage of the present application is to provide a periscope camera module, wherein part of the driving mechanism of the periscope camera module adopts a piezoelectric actuator as a driver to provide a sufficiently large driving force and a relatively better driving force. drive performance.
  • Another advantage of the present application is to provide a periscope camera module, wherein the piezoelectric actuator is arranged in the variable-focus periscope camera module in a reasonable manner to meet the requirements of the periscope camera module.
  • the design requirements of the camera module in terms of function, structure and size.
  • Another advantage of the present application is to provide a periscope camera module, wherein the periscope camera module has an integrated structure.
  • the lens group and the driving assembly are arranged in the receiving space formed by the casing, so that the periscope camera module has a relatively compact structure configuration.
  • Yet another advantage of the present application is to provide a periscope camera module, wherein the bottom surface of the housing forms a mounting base for mounting the light-reflecting component, the zoom lens group and the driving component, that is, the The light deflection assembly, the zoom lens group and the driving assembly have the same installation reference plane, so as to improve the relative positional accuracy between the light deflection assembly, the zoom lens group and the driving assembly after installation.
  • An advantage of the present application is to provide a variable-focus camera module, wherein the variable-focus camera module adopts a novel piezoelectric actuator as a driving element to not only provide a sufficiently large driving force, but also provide The driving performance with higher precision and longer stroke can meet the requirement of adjusting the optical performance of the variable-focus camera module, for example, the requirement of optical zoom.
  • Another advantage of the present application is to provide a zoom camera module, wherein the piezoelectric actuator has a relatively small size, so as to better adapt to the development of light and thin camera modules trend.
  • Another advantage of the present application is to provide a zoom camera module, wherein the piezoelectric actuator is arranged in the zoom camera module by adopting a reasonable arrangement scheme, so as to meet the requirements of the zoom camera module structure and size requirements.
  • a periscope camera module which includes:
  • a light turning assembly comprising: a first mounting carrier and a light turning element mounted on the first mounting carrier;
  • the zoom lens group located on the light turning path of the light turning assembly includes: a fixed part, a zooming part and a focusing part, wherein the zoom lens group is provided with an optical axis;
  • the photosensitive component located on the light-passing path of the zoom lens group includes: a circuit board and a photosensitive chip electrically connected to the circuit board; and
  • a driving assembly including a first driving carrier, a second driving carrier, a first driving module, a second driving module and a third driving module;
  • the zoom part is mounted on the first driving carrier
  • the focusing part is mounted on the second driving carrier
  • the first driving module is configured to drive the first driving carrier to drive the
  • the zooming part moves along the direction set by the optical axis
  • the second driving module is configured to drive the second driving carrier to drive the focusing part to move along the direction set by the optical axis, so as to pass
  • the first driving module and the second driving module move the zooming part and the focusing part respectively to perform optical zooming
  • the third driving module is configured to drive the photosensitive assembly to move in a plane perpendicular to the optical axis and/or drive the light turning assembly to rotate, so as to perform optical anti-shake.
  • the periscope camera module further includes a housing, wherein the housing has a first receiving cavity and a second receiving cavity, wherein the light turning component is accommodated in the first accommodation cavity, and the first driving module, the second driving module, the first driving carrier, the second driving carrier and the zoom lens group are accommodated in the in the second receiving cavity.
  • the first driving module includes at least one first driving element
  • the second driving module includes at least one second driving element
  • the first driving element and the second drive element is implemented as a piezoelectric actuator comprising a piezoelectric active part, a driven shaft drivably connected to the piezoelectric active part of the piezoelectric active component, and , which is movably arranged on the drive part of the driven shaft.
  • the first driving element and the second driving element are located on a first side of the zoom lens group.
  • the first driving element and the second driving element are arranged in the same direction.
  • the first driving element and the second driving element are arranged in opposite directions.
  • the driving assembly further includes a guide structure disposed on a second side of the zoom lens group opposite to the first side, wherein the guide A structure is configured to guide the zoom portion and the focus portion to move in a direction set by the optical axis.
  • the guide structure includes: a first support portion and a second support portion that are arranged in the second receiving cavity at intervals, and a first support portion and a second support portion are erected on the second receiving cavity.
  • At least one guide rod between a support part and a second support part and passing through the first carrier and the second carrier, the extending direction of the guide rod is parallel to the optical axis, in this way, the The first carrier and the second carrier can be guided to move in a direction set by the guide rod parallel to the optical axis.
  • the first driving module includes two of the first driving elements, and one of the first driving elements is configured from a first side of the first driving carrier
  • the first driving carrier is driven to drive the zooming part to move along the direction set by the optical axis
  • another first driving element is configured to connect with the first driving carrier from the first driving carrier.
  • the second side opposite to the side drives the first driving carrier to drive the zoom portion to move along the direction set by the optical axis.
  • the second driving module includes two of the second driving elements, wherein one of the second driving elements is configured to extend from the second driving element of the second driving carrier.
  • One side drives the first carrier to drive the focusing portion to move along the direction set by the optical axis, and the other second driving element is configured to drive from the second driving carrier to the first carrier.
  • the second side opposite to one side drives the second driving carrier to drive the focusing portion to move along the direction set by the optical axis.
  • the third driving module includes two third driving elements, the third driving elements are implemented as piezoelectric actuators, and the piezoelectric actuators include : a piezoelectric active part, a driven shaft drivably connected to the piezoelectric active part of the piezoelectric active component, and a driving part movably arranged on the driven shaft, wherein one of the third The driving element is configured to drive the photosensitive assembly to move along a first direction in a plane perpendicular to the optical axis, and the other third driving element is configured to drive the photosensitive assembly to move in a plane perpendicular to the optical axis. moves along a second direction in the plane of , the second direction is perpendicular to the first direction.
  • the driving assembly includes a first frame and a second frame, the photosensitive assembly is arranged on the first frame, and one of the third driving elements is installed on the first frame.
  • the second frame is configured to drive the first frame to drive the photosensitive assembly to move along the first direction in a plane perpendicular to the optical axis
  • the other third driving element is configured to The second frame is driven to drive the first frame through the third driving element for driving the first frame to drive the photosensitive assembly along the first frame in a plane perpendicular to the optical axis. Move in two directions.
  • the third driving module includes two third driving elements, and the third driving elements are implemented as piezoelectric traveling wave rotary ultrasonic actuators, wherein one of the The third driving element is configured to drive the light-retracting assembly to rotate about a first axis, and the other third driving element is configured to drive the light-retracting assembly to rotate about a second axis, the second axis perpendicular to the first axis.
  • the light turning assembly further includes a second mounting carrier having a mounting cavity, and the light turning element and the first mounting carrier are mounted on the second mounting carrier in the installation cavity, wherein one of the third driving elements is installed on the first installation carrier and is configured to drive the first installation carrier to drive the light turning assembly to rotate around the first axis, and the other The third driving element is mounted on the second mounting carrier and is configured to drive the second mounting carrier to drive the light turning assembly to rotate about the second axis through the first mounting carrier.
  • the third drive module includes two third drive elements, the third drive elements are implemented as electromagnetic motors, wherein one of the electromagnetic motors is configured as The light turning assembly is driven to rotate about a first axis, and the other electromagnetic motor is configured to drive the light turning assembly to rotate about a second axis, the second axis being perpendicular to the first axis.
  • the third drive module includes two third drive elements, wherein one of the third drive elements is implemented as a piezoelectric actuator, and the other of the third drive elements is implemented as a piezoelectric actuator.
  • the driving element is implemented as a piezoelectric traveling wave rotary ultrasonic actuator, wherein the piezoelectric actuator is configured to drive the photosensitive member to move along a first direction in a plane perpendicular to the optical axis,
  • the piezoelectric traveling wave rotary ultrasonic actuator is configured to drive the light turning assembly to rotate about a first axis.
  • the driving component includes a first frame, and the photosensitive component is disposed on the first frame, wherein the piezoelectric actuator is configured to drive the The first frame drives the photosensitive component to move along the first direction in a plane perpendicular to the optical axis.
  • the first direction is a height direction set by the casing.
  • the first frame has a U-shaped structure.
  • the third driving module includes a third driving element, and the third driving element is implemented as a piezoelectric traveling wave rotary ultrasonic actuator, wherein the The piezoelectric traveling-wave rotary ultrasonic actuator is configured to drive the light-reflecting assembly to rotate about a first axis.
  • the third driving module includes a third driving element, and the third driving element is implemented as an electromagnetic motor, wherein the electromagnetic motor is configured as The light turning assembly is driven to rotate around the first axis.
  • the third driving module includes a third driving element, and the third driving element is implemented as a piezoelectric actuator, wherein the piezoelectric actuator The actuator is configured to drive the photosensitive member to move along a first direction in a plane perpendicular to the optical axis.
  • the magnitude of the driving force generated by the piezoelectric actuator is 0.6N to 2N.
  • the focusing portion is disposed adjacent to the focusing portion.
  • the zoom portion is located between the fixed portion and the focus portion.
  • the focusing part is located between the fixing part and the zooming part.
  • the present application provides a zoom camera module comprising:
  • a zoom lens group comprising: a fixed part, a zoom part and a focus part, wherein the zoom lens group is provided with an optical axis;
  • a drive assembly comprising: a drive housing, a first drive element, a second drive element, a first carrier, a second carrier, a first pre-pressing part and a second pre-pressing part, wherein the first driving element, the A second drive element, the first carrier, and the second carrier are located within the drive housing, the zoom portion is mounted to the first carrier, and the focus portion is mounted to the second carrier; wherein , the first drive element and the second drive element are implemented as piezoelectric actuators, the first drive element is clamped to the first carrier and the between the driving housings, and is configured to drive the first carrier to drive the zooming part to move along the direction set by the optical axis; the second driving element is forced by the second preloading part It is sandwiched between the second carrier and the driving housing, and is configured to drive the second carrier to drive the focusing portion to move along the direction set by the optical axis.
  • the piezoelectric actuator includes: a piezoelectric active part and a friction driving part drivably connected to the piezoelectric active part, wherein in the piezoelectric After the actuator is turned on, the friction driving part is configured to provide a driving force for driving the first carrier or the second carrier under the action of the piezoelectric active part.
  • the piezoelectric active part has a plurality of sets of first polarized regions and second polarized regions alternately arranged with each other, the first polarized regions and the second polarized regions
  • the polarization regions have opposite polarization directions, wherein, after the piezoelectric actuator is turned on, the plurality of groups of the first polarization regions and the second polarization regions alternately arranged with each other undergo deformation in different directions
  • the friction driving part is driven to move along a preset direction in the manner of traveling waves, so as to provide a driving force for driving the first carrier or the second carrier.
  • each group of the first polarization region and the second polarization region has opposite polarization directions.
  • each group of the first polarization region and the second polarization region has the same polarization direction.
  • the friction driving part includes a plurality of friction driving elements spaced apart from each other, and the first end of each friction driving element is coupled to the piezoelectric active part.
  • the plurality of friction driving elements are located in the middle area of the piezoelectric active part.
  • the piezoelectric actuator further comprises: a frictional connection layer stacked on the piezoelectric active part, and each of the frictional driving elements is fixed on the first end of the frictional driving element.
  • the frictional connection layer is coupled to the piezoelectric active part.
  • the plurality of end surfaces of the second ends of the plurality of friction driving elements opposite to the first ends are in the same plane.
  • the driving assembly further includes a first friction actuating portion and a second friction actuating portion, the first friction actuating portion is disposed between the first driving element and the second friction actuating portion. Between the first carriers, the second friction actuating portion is provided between the second driving element and the second carrier.
  • the first friction actuating part has a first surface and a second surface opposite to the first surface, and the first surface is in contact with the first carrier. a side surface, the second surface abuts against the end surface of the second end of at least one of the friction driving elements in the plurality of friction driving elements; the second friction actuating portion has a third surface and a contact surface with the third surface The opposite fourth surface, the third surface abuts the side surface of the second carrier, and the fourth surface abuts the end surface of the second end of at least one of the plurality of friction driving elements.
  • the first friction actuating part is integrally formed on the side surface of the first carrier, and/or the second friction actuating part is integrally formed on the second side surface of the carrier.
  • the piezoelectric actuator has a length dimension of 10 mm or less, a width dimension of 1 mm or less, and a height dimension of 1 mm or less.
  • the first pre-compression member includes a first elastic element, and the first elastic element is disposed on the piezoelectric active part of the first driving element and the driving shell the first driving element is clamped and disposed between the driving housing and the first carrier by the elastic force of the first elastic element;
  • the second pre-pressing part includes a first Two elastic elements, the second elastic element is disposed between the piezoelectric active part of the second driving element and the driving housing, so as to force the second driving element by the elastic force of the second elastic element is sandwiched between the drive housing and the first carrier.
  • the first elastic element and the second elastic element are implemented as adhesives having elasticity.
  • the thickness dimension of the first elastic element and the second elastic element is between 10um and 50um.
  • the first pre-pressing component includes a first magnetic element disposed on the first carrier and a first magnetic element disposed on the drive housing and corresponding to the first magnetic element. a second magnetic attraction element, so as to force the first driving element to be clamped and disposed on the drive housing and the second magnetic attraction element through the magnetic force between the first magnetic attraction element and the second magnetic attraction element between the first carriers;
  • the second pre-compression component includes a third magnetic attraction element disposed on the second carrier and a fourth magnetic attraction element disposed in the drive housing and corresponding to the third magnetic attraction element element, so as to force the second driving element to be clamped and disposed between the driving housing and the first carrier through the magnetic force between the third magnetic attraction element and the third magnetic attraction element between.
  • the first driving element and the second driving element are simultaneously disposed on the first side of the zoom lens group.
  • the first driving element and the second driving element are arranged in alignment with each other on the first side of the zoom lens group.
  • the first driving element is provided between the side surface of the first carrier and the side surface of the driving housing
  • the second driving element is provided at between the side surface of the second carrier and the side surface of the drive housing.
  • the first driving element is disposed between the bottom surface of the first carrier and the bottom surface of the driving housing
  • the second driving element is disposed between between the bottom surface of the second carrier and the bottom surface of the drive housing.
  • the first carrier has a first receiving cavity formed concavely on its side surface and extending laterally
  • the second carrier has a side surface formed concavely and extending laterally
  • the second accommodating cavity wherein the first driving element is arranged in the first accommodating cavity, and the second driving element is arranged in the second accommodating cavity.
  • the depth dimension of the first accommodating cavity is equal to the height dimension of the first driving element, and/or the depth dimension of the second accommodating cavity is the same as that of the first accommodating cavity.
  • the height dimensions of the two driving elements are equal.
  • the first carrier has a third accommodating cavity formed concavely on the bottom surface and extending laterally
  • the second carrier has a bottom surface formed concavely and extending laterally
  • the fourth accommodating cavity wherein the first driving element is arranged in the third accommodating cavity, and the second driving element is arranged in the fourth accommodating cavity.
  • the depth dimension of the third accommodating cavity is equal to the height dimension of the first driving element, and/or the depth dimension of the fourth accommodating cavity is the same as the depth dimension of the fourth accommodating cavity.
  • the height dimensions of the two driving elements are equal.
  • the driving assembly further includes a guide structure disposed on a second side of the zoom lens group opposite to the first side, the guide structure is configured To guide the focusing portion and the zooming portion to move along the optical axis.
  • the guide structure includes: a first support portion and a second support portion formed on the drive housing at intervals, and a first support portion is erected on the first support At least one guide rod between the first carrier and the second support part and passing through the first carrier and the second carrier, the guide rod is parallel to the optical axis, so that the first carrier and the second carrier Can be guided to move along said guide rods parallel to the optical axis.
  • the guide mechanism further includes a first guide mechanism disposed between the first carrier and the drive housing, and a first guide mechanism disposed between the second carrier and the drive housing. a second guide mechanism between the drive housings, wherein the first guide mechanism is configured to guide the zoom portion to move along the optical axis, and the second guide mechanism is configured to guide the The focusing portion moves along this optical axis.
  • the first guide mechanism includes at least one ball arranged between the first carrier and the drive housing, and is arranged on the first carrier a accommodating groove for accommodating the at least one ball between the drive housing and the second guide mechanism;
  • the second guide mechanism includes at least one ball arranged between the second carrier and the drive housing, And, an accommodating groove for accommodating the at least one ball is disposed between the second carrier and the driving housing.
  • the first guide mechanism includes: at least one sliding block disposed between the first carrier and the drive housing, and disposed in the drive A slide rail suitable for sliding of the at least one slider between the housing and the first carrier;
  • the second guide mechanism includes: a slide rail arranged between the second carrier and the drive housing At least one slider, and a slide rail disposed between the drive housing and the second carrier suitable for the at least one slider to slide.
  • variable-focus camera module further comprises: a light turning element for turning the imaging light to the zoom lens group.
  • variable-focus camera module In the variable-focus camera module according to the present application, the focusing portion and the zooming portion are disposed adjacent to each other.
  • the present application provides a zoom camera module comprising:
  • a zoom lens group comprising: a fixed part, a zoom part and a focus part, wherein the zoom lens group is provided with an optical axis;
  • a drive assembly comprising: a drive housing, a first drive element, a second drive element, a first carrier, a second carrier, a first pre-pressing part and a second pre-pressing part, wherein the first driving element, the A second driving element, the first carrier and the second carrier are located in the driving housing, the zoom portion is mounted on the first carrier, and the focusing portion is mounted on the second carrier;
  • the first drive element and the second drive element are embodied as piezoelectric actuators, the first drive element being frictionally coupled to the first carrier via the first prestressing element and held by the It is configured to move in a two-dimensional trajectory along the direction set by the optical axis in a manner of bending vibration in two directions after being driven, so as to drive the first carrier through friction to drive the zoom portion along the optical axis.
  • the second drive element is frictionally coupled to the second carrier through the second preload portion and is configured to flexibly vibrate in both directions after being driven
  • the second carrier is moved along the direction set by the optical axis in a two-dimensional trajectory so as to drive the second carrier through friction to drive the focusing portion to move along the direction set by the optical axis.
  • the piezoelectric actuator includes an actuation system and a drive circuit system, wherein the actuation system is controlled by the drive circuit system to move along two It moves in a two-dimensional trajectory along a preset direction in a way of bending vibration in one direction.
  • the actuating system includes: a piezoelectric plate structure and a friction driving part fixed to the piezoelectric plate structure, the friction driving part is frictionally coupled to the the first carrier or the second carrier.
  • the piezoelectric plate structure has a first side surface extending along its depth direction and a first side surface extending along its height direction and adjacent to the first side surface Two side surfaces, wherein the piezoelectric plate structure has a first resonance frequency along its depth direction and a second resonance frequency along its height direction, wherein the second resonance frequency is greater than the first resonance frequency.
  • the piezoelectric plate structure includes a first piezoelectric region, a second piezoelectric region and a third piezoelectric region formed on the second side surface, and formed on the second side surface.
  • the fourth piezoelectric region on the first side surface, wherein the second piezoelectric region is located between the first piezoelectric region and the third piezoelectric region, and the fourth piezoelectric region is connected to the fourth piezoelectric region.
  • the second piezoelectric regions are adjacent to each other; wherein, the piezoelectric plate structure further includes a first electrode pair electrically connected to the first piezoelectric region and a second electrode electrically connected to the second piezoelectric region pair, a third electrode pair electrically connected to the third piezoelectric region, and a fourth electrode pair electrically connected to the fourth electrical connection region.
  • the driving circuit system includes a first driving circuit and a second driving circuit, and the first driving circuit is electrically connected to the first electrode pair and the third electrode pair , the second drive circuit is electrically connected to the second electrode pair and the fourth electrode pair; wherein, the vibration frequency of the circuit vibration signal output by the first drive circuit and the second drive circuit is equal to the a resonant frequency or the second resonant frequency.
  • the piezoelectric plate structure when the vibration frequency of the circuit vibration signal output by the first driving circuit is the first resonance frequency, the piezoelectric plate structure resonates in its height direction and is Partial resonance occurs in its depth direction, so that the piezoelectric plate structure moves along a two-dimensional trajectory along a preset direction in a manner of bending vibration in two directions; wherein, when the circuit input by the second drive circuit vibrates When the vibration frequency of the signal is the second resonance frequency, the piezoelectric plate structure resonates in its depth direction and partially resonates in its height direction, so that the piezoelectric plate structure bends and vibrates in two directions It moves in a two-dimensional trajectory along a preset direction.
  • the driving assembly further includes a first friction actuating part and a second friction actuating part, and the first friction actuating part is sandwiched and disposed on the first friction actuating part. between the friction driving portion of the driving element and the first carrier, so that the first driving element is frictionally coupled to the first carrier through the first friction actuating portion and the first preloading member; The second friction actuating portion is sandwiched between the friction actuating portion of the second driving element and the second carrier to be actuated by the second preloading member and the second friction A portion of the second drive element is frictionally coupled to the second carrier.
  • the first pre-compression member includes a first elastic element, and the first elastic element is disposed on the piezoelectric plate structure of the first driving element and the driving shell between the two bodies, the first drive element is frictionally coupled to the the first carrier;
  • the second preloading element includes a second elastic element, the second elastic element is arranged between the piezoelectric plate structure of the second driving element and the driving housing to pass The elastic force of the second elastic element forces the friction driving portion of the second driving element against the second friction actuating portion in such a way that the second driving element is frictionally coupled to the second carrier.
  • the first elastic element and the second elastic element are implemented as elastic adhesives.
  • the thickness dimension of the first elastic element and the second elastic element is between 10um and 50um.
  • the first carrier includes a first groove formed concavely on its surface, and the first friction actuating portion is disposed in the first groove, wherein , the first groove forms a guide groove for guiding the movement of the friction driving portion of the first driving element.
  • the second carrier includes a second groove concavely formed on the surface thereof, and the second friction actuating portion is disposed in the second groove, wherein , the second groove forms a guide groove for guiding the movement of the friction driving portion of the second driving element.
  • the first groove has a reduced aperture
  • the second groove has a reduced aperture
  • the first pre-pressing component includes a first magnetic attraction element disposed on the first carrier and a first magnetic attraction element disposed on the drive housing and corresponding to the first magnetic attraction element.
  • the second magnetic attraction element of the element to force the friction driving part of the first driving element against the first friction action through the magnetic force between the first magnetic attraction element and the second magnetic attraction element
  • the moving part is frictionally coupled to the first carrier in such a way that the first driving element;
  • the frictional drive portion is frictionally coupled to the second carrier in such a way that the second drive element is frictionally coupled against the second frictional actuation portion.
  • the first driving element and the second driving element are simultaneously disposed on the first side of the zoom lens group.
  • the first driving element and the second driving element are arranged in alignment with each other on the first side of the zoom lens group.
  • the first driving element is provided between the side surface of the first carrier and the side surface of the driving housing
  • the second driving element is provided at between the side surface of the second carrier and the side surface of the drive housing.
  • the first driving element is disposed between the bottom surface of the first carrier and the bottom surface of the driving housing
  • the second driving element is disposed between between the bottom surface of the second carrier and the bottom surface of the drive housing.
  • the driving assembly further includes a guide structure disposed on a second side of the zoom lens group opposite to the first side, the guide structure is configured To guide the focusing portion and the zooming portion to move along the optical axis.
  • the guide structure includes: a first support portion and a second support portion formed on the drive housing at intervals, and a first support portion is erected on the first support At least one guide rod between the first carrier and the second support part and passing through the first carrier and the second carrier, the guide rod is parallel to the optical axis, so that the first carrier and the second carrier Can be guided to move along said guide rods parallel to the optical axis.
  • the guide structure further includes a first guide mechanism disposed between the first carrier and the drive housing, and a first guide mechanism disposed between the second carrier and the drive housing. a second guide mechanism between the drive housings, wherein the first guide mechanism is configured to guide the zoom portion to move along the optical axis, and the second guide mechanism is configured to guide the The focusing portion moves along this optical axis.
  • the first guide mechanism includes at least one ball arranged between the first carrier and the drive housing, and is arranged on the first carrier a accommodating groove for accommodating the at least one ball between the drive housing and the second guide mechanism;
  • the second guide mechanism includes at least one ball arranged between the second carrier and the drive housing, And, an accommodating groove for accommodating the at least one ball is disposed between the second carrier and the driving housing.
  • the first guide mechanism includes: at least one sliding block disposed between the first carrier and the drive housing, and disposed in the drive A slide rail suitable for sliding of the at least one slider between the housing and the first carrier;
  • the second guide mechanism includes: a slide rail arranged between the second carrier and the drive housing At least one slider, and a slide rail disposed between the drive housing and the second carrier suitable for the at least one slider to slide.
  • variable-focus camera module further comprises: a light turning element for turning the imaging light to the zoom lens group.
  • variable-focus camera module In the variable-focus camera module according to the present application, the focusing portion and the zooming portion are disposed adjacent to each other.
  • FIG. 1 illustrates a schematic diagram of a periscope camera module according to an embodiment of the present application.
  • FIG. 2 illustrates a schematic diagram of an optical system of the periscope camera module according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram illustrating a specific example of a light blocking element of the periscope camera module according to an embodiment of the present application.
  • FIG. 4 illustrates a schematic cross-sectional view of the periscope camera module according to an embodiment of the present application.
  • 5A and 5B illustrate schematic diagrams of piezoelectric actuators of the periscope camera module according to an embodiment of the present application.
  • FIGS. 6A and 6B illustrate schematic diagrams of a variant implementation of the piezoelectric actuator of the periscope camera module according to an embodiment of the present application.
  • FIG. 7A illustrates a schematic diagram of a variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7B illustrates a schematic diagram of another variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7C illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7D illustrates a schematic diagram of a variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7E illustrates a schematic diagram of another variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7F illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7G illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7H illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7I illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 7J illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • FIG. 8A illustrates another schematic diagram of the periscope camera module according to an embodiment of the present application.
  • FIG. 8B illustrates a schematic diagram of a third driving module and a photosensitive component in the periscope camera module according to an embodiment of the present application.
  • FIG. 8C illustrates a modified embodiment of the third driving module and the photosensitive assembly according to an embodiment of the present application.
  • FIG. 8D illustrates a modified embodiment of the third driving module and the photosensitive assembly according to an embodiment of the present application.
  • FIG. 8E illustrates another modified embodiment of the third driving module and the photosensitive assembly according to the embodiment of the present application.
  • FIG. 8F illustrates yet another modified embodiment of the third driving module and the photosensitive assembly according to the embodiment of the present application.
  • FIG. 9 illustrates a schematic diagram of a third driving module and a light turning assembly of the periscope camera module according to an embodiment of the present application.
  • FIG. 10 illustrates a schematic diagram of a variant implementation of the third driving module and the light turning assembly of the periscope camera module according to an embodiment of the present application.
  • FIG. 11A illustrates one of the schematic diagrams of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to an embodiment of the present application.
  • FIG. 11B illustrates the second schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to an embodiment of the present application.
  • FIG. 11C illustrates the third schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to an embodiment of the present application.
  • FIG. 11D illustrates the fourth schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to the embodiment of the present application.
  • FIG. 11E illustrates the fifth schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to an embodiment of the present application.
  • FIG. 11F illustrates the sixth schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to the embodiment of the present application.
  • FIG. 12 is a schematic diagram illustrating yet another variant implementation of the third driving module of the periscope camera module according to an embodiment of the present application.
  • FIG. 13 illustrates a schematic diagram of a variable-focus camera module according to an embodiment of the present application.
  • FIG. 14 illustrates a schematic diagram of an optical system of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 15 illustrates a schematic diagram of a piezoelectric actuator according to an embodiment of the application.
  • FIG. 16 illustrates a schematic diagram of the piezoelectric actuator after being turned on according to an embodiment of the present application.
  • FIG. 17 illustrates a schematic diagram of a variant implementation of the piezoelectric actuator according to embodiments of the present application.
  • FIG. 18 illustrates another schematic diagram of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 19 is a schematic diagram illustrating a variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 20 is a schematic diagram illustrating another variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 21 illustrates a schematic diagram of a variant implementation of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 22 illustrates a schematic diagram of another variant implementation of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 23 illustrates a specific enlarged schematic diagram of another variant implementation of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 24 illustrates a schematic diagram of a variable-focus camera module according to an embodiment of the present application.
  • FIG. 25 illustrates a schematic diagram of an optical system of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 26 illustrates a schematic cross-sectional view of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 27A illustrates a schematic diagram of a piezoelectric actuator according to an embodiment of the application.
  • 27B illustrates a schematic diagram of a piezoelectric plate structure of the piezoelectric actuator according to an embodiment of the present application.
  • 27C illustrates a schematic diagram of the signal output of the driving circuitry of the piezoelectric actuator according to an embodiment of the present application.
  • 27D-27F illustrate schematic diagrams of the piezoelectric actuator moving in a first mode according to embodiments of the present application.
  • 27G-27I illustrate schematic diagrams of the piezoelectric actuator moving in a second mode according to embodiments of the present application.
  • 27J illustrates another schematic diagram of a piezoelectric plate structure of the piezoelectric actuator according to an embodiment of the present application.
  • 27K illustrates a schematic diagram of the piezoelectric actuator acting on a moved object according to an embodiment of the present application.
  • 27L illustrates a schematic diagram of the movement of the piezoelectric actuator according to an embodiment of the present application.
  • FIG. 28 illustrates a schematic diagram of a variant implementation of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 29 illustrates a schematic diagram of another modified embodiment of the variable-focus camera module according to the embodiment of the present application.
  • FIG. 30 illustrates a schematic diagram of yet another variant implementation of the variable-focus camera module according to an embodiment of the present application.
  • FIG. 31 illustrates a schematic diagram of yet another variant implementation according to an embodiment of the present application.
  • FIG. 32 illustrates a schematic diagram of yet another variant implementation according to an embodiment of the present application.
  • the existing driving elements used to drive various components in the camera module are electromagnetic motors, such as voice coil motors (Voice Coil Motor: VCM), shape memory alloy drivers ( Shape of Memory Alloy Actuator: SMA), etc.
  • VCM voice Coil Motor
  • SMA Shape of Memory Alloy Actuator
  • the camera module is arranged along the thickness direction of electronic devices, such as mobile phones, so the various components in the camera module tend to be thin and miniaturized.
  • the electromagnetic motor can provide sufficient driving force .
  • the structure and positional relationship of the camera module relative to the electronic device has been changed, that is, the camera module can be arranged along the length or width of the electronic device, so that the camera module It is no longer limited by the size of the electronic device in the thickness direction, so that a greater degree of freedom in size increase can be obtained.
  • the component design of the camera module also brings about an increase in the size of the component, resulting in a further increase in the weight of the component.
  • the traditional electromagnetic motor can no longer provide sufficient driving force.
  • the existing voice coil motor driver can only drive the optical lens with a weight of less than 100mg, while the memory alloy motor requires a larger Travel space setting, that is, if the weight of the components to be driven in the camera module exceeds 100mg, the existing driver will not be able to meet the application requirements of the camera module or need to increase the size of the driver to provide greater thrust.
  • the requirements for the adjustment of the optical performance of the camera modules are getting higher and higher.
  • the camera modules are also required to be able to perform functions such as optical image stabilization and optical zoom.
  • the driving scheme of the camera module puts forward more stringent requirements. Therefore, a new generation of drive solutions must be developed for the camera module.
  • the technical route of the present application is to provide a design of a periscope camera module based on a piezoelectric actuator that can provide a larger driving force, so as to meet the requirements of large-scale components in the new periscope camera module Then the need for component drivers.
  • a periscope camera module including: a light turning component, including: a first mounting carrier and a light turning element mounted on the first mounting carrier;
  • the zoom lens group on the light turning path of the turning component includes: a fixed part, a zoom part and a focusing part, wherein the zoom lens group is provided with an optical axis;
  • the photosensitive component located on the light-transmitting path of the zoom lens group It includes: a circuit board and a photosensitive chip electrically connected to the circuit board; and a driving assembly, including a first driving carrier, a second driving carrier, a first driving module, a second driving module and a third driving module; wherein, the The zoom portion is mounted on the first driving carrier, the focusing portion is mounted on the second driving carrier, and the first driving module is configured to drive the first driving carrier to drive the zoom portion along the moving in the direction set by the optical axis, the second driving module is configured to drive the second driving carrier to drive the focusing part to move along the direction set by the
  • piezoelectric actuators are used in at least part of the driving modules (ie, in the first driving module, the second driving module and the third driving module) of the variable-focus periscope camera module As a driver to provide enough driving force and relatively better driving performance.
  • a reasonable layout scheme is adopted to arrange the piezoelectric actuator in the variable-focus periscope camera module to meet the design requirements of the variable-focus periscope camera module in terms of function, structure and size. .
  • the piezoelectric actuator is used as the driving element of the zoom part and/or the focus part that needs to be moved , it is possible to drive optical components of a periscope camera module that weighs much more than 100 mg, eg, up to a weight of more than 1 gram.
  • the stroke provided by a single deformation of the piezoelectric actuator is limited, a longer distance movement of the optical component to be moved can be realized by stacking the strokes provided by multiple deformations, and the piezoelectric actuator
  • the single deformation plus the recovery time is very short, which can fully meet the needs of the zoom time.
  • the piezoelectric actuator can also be used as a driving element of the light-reflecting assembly and/or the photosensitive assembly that needs to be moved, so as to drive the light-reflecting assembly and/or the photosensitive assembly to perform optical anti-shake.
  • piezoelectric actuator is used as an example for description in the embodiments of the present application
  • the technical solutions of the periscope camera module according to the embodiments of the present application can also be equivalent It can be applied to other actuators other than piezoelectric actuators that can provide a larger driving force, and this application does not intend to impose any limitation on this.
  • FIG. 1 illustrates a schematic diagram of a periscope camera module according to an embodiment of the present application.
  • the periscope camera module according to the embodiment of the present application includes: a casing 760 , a light turning component 710 , a zoom lens group 720 , a photosensitive component 730 and a driving component 740 .
  • the light deflection assembly 710 includes a first mounting carrier 712 and a light deflection element 711 mounted on the first mounting carrier 712 , wherein, The light redirecting element 711 is used for receiving the imaging light from the photographed object, and redirecting the imaging light to the zoom lens group 720 .
  • the light turning element 711 is configured to turn the imaging light from the photographed object by 90°, so that the overall height dimension of the periscope camera module can be reduced.
  • the angle of the light turning element 711 turning the imaging light may have an error within 1°, which should be understood by those of ordinary skill in the art.
  • the light turning element 711 may be implemented as a mirror (eg, a flat mirror), or a light turning prism (eg, a triangular prism), which may be attached to the first The mounting surface of the mounting carrier 712 .
  • a mirror eg, a flat mirror
  • a light turning prism eg, a triangular prism
  • the light incident face of the light turning prism and its light exit face are perpendicular to each other, and the light reflecting face of the light turning prism is perpendicular to the light incident face and the light turning face.
  • the light exit surface is inclined at an angle of 45°, so that when the imaging light enters the light turning prism in a manner perpendicular to the light incident surface, the imaging light can be turned 90° at the light reflecting surface, so that output from the light exit surface in a manner perpendicular to the light exit surface.
  • the light deflection element 711 may also be implemented as other types of optical elements, which are not limited by the present application.
  • the periscope camera module may further include a larger number of light-reflecting elements 710 , one of the reasons is that one of the functions of introducing the light-reflecting elements 711 is to perform imaging on the imaging light. Turning, so that the optical system of the periscope camera module with a longer total optical length (TTL: Total Track Length) can be folded in the structural dimension.
  • TTL Total Track Length
  • the total optical length (TTL) of the periscope camera module is too long, a larger number of light turning elements 710 can be provided to meet the size requirements of the periscope camera module.
  • the light turning element 711 is located on the image side of the periscope camera module or between two lens portions of the zoom lens group 720 .
  • the zoom lens group 720 corresponds to the light refraction element 711 , and is used to receive the imaging light from the light refraction element 711 and use the imaging light to perform converge or diverge.
  • the zoom lens group 720 corresponds to the light refraction element 711 , and is used to receive the imaging light from the light refraction element 711 and use the imaging light to perform converge or diverge.
  • the zoom lens group 720 includes a fixed part 721 , a zoom part 722 and a focus part 723 along the set optical axis direction, wherein the fixed part 721 has a predetermined
  • the zooming part 722 and the focusing part 723 can be adjusted respectively relative to the position of the fixing part 721 under the action of the driving assembly 740, so as to realize the optical performance of the periscope camera module adjustments, including but not limited to optical focus and optical zoom functions.
  • the zoom part 722 and the focus part 723 can be adjusted by the drive assembly 740, so that the focal length of the zoom lens group 720 of the periscope camera module can be adjusted, so as to clearly capture images of different distances. subject.
  • the fixing portion 721 includes a first lens barrel and at least one optical lens accommodated in the first lens barrel. Moreover, the fixed part 721 is adapted to be fixed to the non-moving part of the driving assembly 740 , so that the position of the fixed part 721 in the zoom lens group 720 remains constant.
  • the fixing portion 721 may not be provided with the first lens barrel, but only includes at least one optical lens, for example, it only includes a plurality of optical pieces that are fitted with each other lens. That is, in other examples of the application, the fixed portion 721 may be implemented as a "bare lens".
  • the zoom portion 722 includes a second lens barrel and at least one optical lens accommodated in the second lens barrel, wherein the zoom portion 722 is adapted to be driven by the driving assembly 740 to move along the
  • the zoom lens group 720 moves in the direction of the optical axis, so as to realize the optical zoom function of the periscope camera module, so that the periscope camera module can realize the detection of objects at different distances.
  • the zoom portion 722 may not be provided with the second lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that are fitted with each other. lens. That is, in other examples of the application, the zoom portion 722 may also be implemented as a "bare lens".
  • the focusing portion 723 includes a third lens barrel and at least one optical lens accommodated in the third lens barrel, wherein the focusing portion 723 is adapted to be driven by the driving assembly 740 to move along the
  • the zoom lens group 720 moves in the direction of the optical axis, so as to realize the focusing function of the periscope camera module. More specifically, the optical focusing achieved by driving the focusing portion 723 can compensate for the focus shift caused by moving the zooming portion 722, thereby compensating the imaging performance of the periscope camera module and improving the imaging quality. meet preset requirements.
  • the focusing portion 723 may not be provided with the third lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that are fitted with each other. lens. That is, in other examples of the application, the focusing portion 723 may also be implemented as a "bare lens".
  • the fixed part 721 , the zoom part 722 and the focus part 723 of the zoom lens group 720 are arranged in sequence (that is, in the In the zoom lens group 720 , the zoom portion 722 is located between the fixed portion 721 and the focusing portion 723 ), that is, the imaging light from the light-refracting element 711 passes through the zoom lens group 720 during the process Among them, it will first pass through the fixed part 721 , then through the zooming part 722 , and then pass through the focusing part 723 .
  • the relative positional relationship between the fixed part 721 , the zooming part 722 and the focusing part 723 can also be adjusted, for example, the fixed part 721 is set on the zooming part Part 722 and the focusing part 723 , for another example, the focusing part 723 is provided between the zooming part 722 and the fixing part 721 .
  • the relative positional relationship between the fixed part 721 , the zoom part 722 and the focusing part 723 may be based on the optical design requirements and structure of the periscope camera module Design requires adjustments.
  • the focusing portion 723 and the The zoom sections 722 are arranged adjacently. That is, the position of each part in the zoom lens group 720 according to the embodiment of the present application is preferably configured such that the zoom part 722 is located between the fixed part 721 and the focus part 723, or, all the The focusing portion 723 is located between the fixing portion 721 and the zooming portion 722 . It should be understood that the zooming part 722 and the focusing part 723 are parts of the zoom lens group 720 that need to be moved. Therefore, arranging the focusing part 723 and the zooming part 722 adjacent to each other is conducive to arranging all the The driving assembly 740 is described, and this part will be expanded in the detailed description of the driving assembly 740 .
  • the zoom lens group 720 includes one of the fixing parts 721 , one of the zooming parts 722 and one of the focusing parts 723 as an example, but in the art Those of ordinary skill should know that in other examples of the present application, the specific number of the fixed portion 721, the zoom portion 722 and the focusing portion 723 is not limited by the present application, and can be selected according to the periscope The optical design of the camera module needs to be adjusted.
  • the photosensitive component 730 corresponds to the The zoom lens group 720 is used to receive the imaging light from the zoom lens group 720 and perform imaging, wherein the photosensitive component 730 includes a circuit board 731, a photosensitive chip 732 electrically connected to the circuit board 731, and a photosensitive chip 732 held on the circuit board 731.
  • the filter element 733 on the photosensitive path of the photosensitive chip 732 More specifically, in the example shown in FIG. 1 and FIG. 2 , the photosensitive assembly 730 further includes a bracket 734 disposed on the circuit board 731 , wherein the filter element 733 is mounted on the bracket 734 to be held on the photosensitive path of the photosensitive chip 732 .
  • the specific implementation of the filter element 733 held on the light-sensing path of the photosensitive chip 732 is not limited by the present application.
  • the filter element 733 can be implemented as a filter film and coated on the surface of a certain optical lens of the zoom lens group 720 to play a filtering effect.
  • the photosensitive component 730 can further include a bracket 734 mounted on the The filter element holder (not shown), wherein the filter element 733 is held on the photosensitive path of the photosensitive chip 732 by being mounted on the filter element holder.
  • the periscope camera module further includes a light blocking element 750 disposed on the photosensitive path of the photosensitive assembly 730, wherein , the light blocking element 750 can at least partially block the transmission of light, so as to reduce the influence of stray light on the imaging quality of the periscope camera module as much as possible.
  • FIG. 3 is a schematic diagram illustrating a specific example of a light blocking element of the periscope camera module according to an embodiment of the present application.
  • the light blocking element 750 is installed on the light exit surface of the light diverting element 711 , wherein the light blocking element 750 has a light-transmitting hole 7500 , which is suitable for imaging An effective portion of the light transmits and blocks at least a portion of the stray light in the imaged light.
  • the light-transmitting hole 7500 is a circular hole, so as to match the circular effective optical area of the zoom lens group 720 and reduce the influence of stray light on the imaging quality as much as possible.
  • the light blocking element 750 may be disposed at other positions of the light redirecting element 711 , for example, the light incident surface or the light reflecting surface of the light redirecting element 711 , This is not limited by this application. It is also worth mentioning that, in other examples of the present application, the light blocking element 750 may also be disposed on the photosensitive path of the photosensitive assembly 730 as an independent component, for example, disposed as an independent component on the photosensitive path of the photosensitive assembly 730 . For another example, between the light refraction element 711 and the zoom lens group 720, as an independent part, it is arranged between the zoom lens group 720 and the photosensitive component 730, which is not the subject of this application. limited.
  • the light deflection component 710 , the zoom lens group 720 and the driving component 740 of the periscope camera module are arranged in the receiving space formed by the casing 760 thereof, so as to
  • the periscope camera module has a relatively compact structure configuration.
  • the housing 760 has a first accommodating cavity 761 and a second accommodating cavity 762 , wherein the light turning assembly 710 is accommodated in the first accommodating cavity 761 , and the The driving assembly 740 and the zoom lens group 720 are accommodated in the second accommodating cavity 762 .
  • the bottom surface of the housing 760 forms a mounting base for installing the light-reflecting assembly 710, the zoom lens group 720 and the driving assembly 740, that is, the light-refracting assembly 710, the
  • the zoom lens group 720 and the driving assembly 740 have the same installation reference surface, so as to improve the relative positional accuracy between the light refraction assembly 710 , the zoom lens group 720 and the driving assembly 740 after installation.
  • the new technical requirements mainly focus on two aspects: relatively larger driving force, and better driving performance (specifically including: higher-precision driving control and longer driving stroke). Moreover, in addition to finding a driver that meets the requirements of new technologies, it is also necessary to consider whether the selected driver can adapt to the current development trend of lightening and thinning of camera modules when selecting a new driver.
  • a piezoelectric actuator is used as a driver in part of the driving mechanism of the periscope camera module to provide a sufficiently large driving force and relatively better driving performance.
  • a reasonable arrangement scheme is adopted to arrange the piezoelectric actuator in the periscope camera module, so as to meet the design requirements of the variable-focus periscope camera module in terms of function, structure and size.
  • the driving assembly 740 includes: a first driving carrier 744 , a second driving carrier 745 , a first driving module 742 , and a second driving module 743 and a third driving module 747, the zoom part 722 is installed in the first driving carrier 744, the focusing part 723 is installed in the second driving carrier 745, wherein the first driving module 742 is configured to drive the first driving carrier 744 to drive the zoom portion 722 to move along the direction set by the optical axis, and the second driving module 743 is configured to drive the second driving carrier 745 to drive The focusing portion 723 is moved along the direction set by the optical axis to perform the optical operation by moving the zooming portion 722 and the focusing portion 723 by the first driving module 742 and the second driving module 743, respectively. zoom.
  • the third driving module 747 is configured to drive the photosensitive assembly 730 to move in a plane perpendicular to the optical axi
  • the first driving carrier 744 includes a first carrier base 7441 and a first extending arm 7442 and a first extending arm 7442 and a first extending arm 7442 integrally extending upward from the first carrier base 7441 , respectively.
  • the first driving carrier 744 has a U-shaped structure, so that the zoom portion 722 can be installed in the first mounting cavity 7444 from the first opening 7445 of the U-shaped structure.
  • the second driving carrier 745 includes a second carrier base 7451 and a third extending arm 7452 and a third extending arm 7452 integrally extending upward from the second carrier base 7451 , respectively.
  • the second driving carrier 745 also has a U-shaped structure, so that the focusing portion 723 is installed in the second mounting cavity from the second opening 7455 of the U-shaped structure. within 7454.
  • the first driving module 742 includes at least one first driving element 7421
  • the second driving module 743 includes at least one second driving element 7431 , wherein the first driving element 7431
  • the driving element 7421 and the second driving element 7431 are implemented as piezoelectric actuators to provide driving force for moving the focusing portion 723 and the zooming portion 722 .
  • the piezoelectric actuator 7100 includes: a piezoelectric active part 7110 and a driven shaft drivably coupled to the piezoelectric active part 7110 7120, and a driving part 7130 tightly matched with the driven shaft 7120, wherein the driving part 7130 is configured to drive the first driven part 7110 and the driven shaft 7120 under the action of the piezoelectric active part 7110 and the driven shaft 7120.
  • a driving carrier 744 or the second driving carrier 745 moves along the direction set by the optical axis.
  • the piezoelectric active part 7110 includes an electrode plate 7111 and at least one piezoelectric substrate stacked on the electrode plate 7111 .
  • the piezoelectric substrate is a substrate that has an inverse piezoelectric effect and shrinks or expands according to the polarization direction and the electric field direction, for example, it can be formed by using substrate polarization in the thickness direction of single crystal or polycrystalline ceramics, polymers, etc. made and used.
  • the inverse piezoelectric effect means that an electric field is applied in the polarization direction of the dielectric, and the dielectric undergoes mechanical deformation when a potential difference is generated.
  • the at least one piezoelectric substrate includes a first piezoelectric substrate 7112 and a second piezoelectric substrate 7113, and the electrode plate 7111 is sandwiched between the between the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 .
  • the piezoelectric active part 7110 further includes electrode layers 7115 formed on the upper and lower surfaces of the first piezoelectric substrate 7112, respectively, and electrode layers 7115 formed on the second piezoelectric substrate, respectively Electrode layers 7115 on the upper and lower surfaces of 7113 to provide pulse voltage to the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 through the electrode layer 7115 and the electrode plate 7111 .
  • the electrode plate 7111 may be formed of a plate-like element with a certain elasticity, for example, a metal plate with a certain elasticity.
  • the piezoelectric active part 7110 further includes at least one electrical conduction part 7114 electrically connected to the electrode plate 7111 , for example, the at least one electrical conduction part 7114 can be welded It is welded to the electrode plate 7111 , or the at least one electrical conduction part 7114 is integrally formed with the electrode plate 7111 . It is worth mentioning that when the number of the electrical conduction parts 7114 is multiple, preferably, the multiple electrical conduction parts 7114 are symmetrically distributed on the outer surface of the electrode plate 7111 .
  • the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 are respectively attached to the first side surface of the electrode plate 7111 and to the first side surface through the electrode layer 7115 the opposite second side surface.
  • the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 may be fixed with the electrode plate 7111 in a surface-to-surface engagement, or the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 are attached to the electrode plate 7111 by conductive silver glue.
  • the shape and size of the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 are similar to or consistent with the electrode plate 7111 , so that the piezoelectric active part 7110 has Better vibration efficiency.
  • the first piezoelectric substrate 7112, the second piezoelectric substrate 7113 and the electrode plate 7111 are circular plates.
  • the driven shaft 7120 is fixed to the piezoelectric active part 7110 , for example, attached to the center of the piezoelectric active part 7110 by an adhesive.
  • the driven shaft 7120 can be attached to the electrode layer 7115 on the outer surface of the first piezoelectric substrate 7112 through an adhesive, or can be nestedly attached to the first piezoelectric substrate through an adhesive.
  • the driven shaft 7120 is further fitted in the center of the first piezoelectric substrate 7112 .
  • the piezoelectric active part 7110 has a central hole penetrating through the upper and lower surfaces thereof, and the driven shaft 7120 is fitted into the central hole of the piezoelectric active part 7110 through an adhesive.
  • the driven shaft 7120 may be implemented as a carbon rod.
  • the cross-sectional shape of the driven shaft 7120 is a circle or a polygon, preferably a circle
  • the driving part 7130 is tightly fitted on the driven shaft 7120 .
  • the driving part 7130 and the driven shaft 7120 are frictionally fitted, so that the driving part 7130 is tightly fitted on the driven shaft 7120 .
  • the driving part 7130 may be implemented as a clamping mechanism for clamping the driven shaft 7120, wherein the clamping mechanism may be a clamping mechanism with adjustable clamping force, Alternatively, a gripping mechanism made partly or entirely of an elastic material.
  • the electrode layer 7115 exposed on the surface of the piezoelectric active part 7110 is electrically connected to the positive electrode 7117 of the power supply control part 7116 , and the electrode plate 7111 is connected to the electric conduction part 7114 through the electric conduction part 7114 . It is electrically connected to the negative electrode 7118 of the power control part 7116, so that when the power control part 7116 repeatedly applies a pulse voltage to the electrode layer 7115 and the electrode plate 7111, the first piezoelectric substrate 7112 and The second piezoelectric substrate 7113 is deformed in one direction under the action of the inverse piezoelectric effect, and quickly returns to a flat shape under the elastic action of the electrode plate 7111 .
  • the driven shaft 7120 moves back and forth in the set axial direction, and since the driving part 7130 and the driven shaft 7120 are friction fit, when the pressure When the electro-active part 7110 is deformed in one direction, the driving part 7130 and the driven shaft 7120 move together, and when the piezoelectric active part 7110 quickly returns to its original state, the driven shaft 7120 also moves in the opposite direction
  • the driving part 7130 cannot return to the original position due to the inertial action and cannot follow the action of the driven shaft 7120 , and can only stay at the position where it is. Therefore, in a deformation process, the position of the driving part 7130 changes, and accordingly, by repeatedly applying the pulse voltage, the above-mentioned movement can be repeated, so that the driving part 7130 is moved to the target position.
  • the piezoelectric actuator 7100 includes: a piezoelectric active part 7110 , a slave of the piezoelectric active part 7110 drivably connected to the piezoelectric active part 7110 .
  • the first driving carrier 744 or the second driving carrier 745 is driven to drive the zooming part 722 or the focusing part 723 to move along the optical axis.
  • the piezoelectric active part 7110 includes a piezoelectric element 7111A having a laminated structure as illustrated in FIG. 6A .
  • the piezoelectric element 7111A includes a plurality of piezoelectric stretchable bodies 7112A and a plurality of electrodes 7113A, and the plurality of piezoelectric stretchable bodies 7112A and the plurality of electrodes 7113A are alternately stacked.
  • the piezoelectric element 7111A can obtain a relatively large amount of deformation even when a small electric field is applied.
  • the electrode 7113A which sandwiches a plurality of piezoelectric stretchable bodies 7112A alternately is defined as an internal electrode, and the electrode 7113A is disposed on the surface of the piezoelectric stretchable body 7112A and located in the piezoelectric stretchable body 7112A.
  • the electrodes 7113A on the upper surface and the lower surface of the electric element 7111A are defined as the upper electrode and the lower electrode, respectively, and the electrode 7113A disposed on the surface of the piezoelectric stretchable body 7112A and located on the side surface of the piezoelectric element 7111A is Defined as side electrodes. Accordingly, in the case of multiple layers, electrodes 7113A of the same polarity are electrically connected through the side electrodes.
  • the driven shaft 7120 has a cylindrical shape and is attached to the middle area of the upper surface of the piezoelectric element 7111A by an adhesive, so that the moving shaft is engaged with the piezoelectric element 7111A.
  • Electrical component 7111A the shape of the moving shaft can also be adjusted, which is not limited by the present application.
  • the driven shaft 7120 is made of a material containing any one of “carbon, heavy metals, carbides of heavy metals, borides of heavy metals, and nitrides of heavy metals” as a main component
  • the piezoelectric element 7111A has a rectangular parallelepiped. A shape that has sides along mutually orthogonal X, Y, and Z axes, respectively.
  • the length of the piezoelectric element 7111A in the X-axis direction is 1 mm
  • the length in the Y-axis direction of the piezoelectric element 7111A is 1 mm
  • the length (height) in the Z-axis direction of the piezoelectric element 7111A is 72 mm.
  • the piezoelectric actuator 7100 shown in FIGS. 6A and 6B has the advantages of small size, large thrust, and high precision. Moreover, compared with the piezoelectric actuator 7100 illustrated in FIGS. 5A and 5B , the piezoelectric active portion 7110 of the piezoelectric actuator 7100 illustrated in FIGS. 6A and 6B has a relatively smaller cross section The size is suitable for use in a module with compact space, but its thickness is relatively large, and at the same time, the internal structure of the piezoelectric element 7111A is relatively complex.
  • the piezoelectric actuator 7100 can provide a relatively high driving force. More specifically, the piezoelectric actuator 7100 selected in this application can provide a driving force of 0.76N to 2N, which is sufficient to drive a component with a weight greater than 100 mg.
  • the piezoelectric actuator 7100 has other advantages compared to traditional electromagnetic motor solutions and memory alloy motor solutions, including but not limited to: a relatively small size (with Slender shape), better response accuracy, relatively simpler structure, relatively simpler drive control, high product consistency, no electromagnetic interference, relatively larger stroke, short stabilization time, relatively small weight, etc.
  • the piezoelectric actuator 7100 uses the frictional force and inertia during vibration to push the object to be pushed (for example, the focusing portion 723 or the zooming portion 722 ) to perform micron-level motion in a frictional contact manner, which Compared with the electromagnetic scheme, the non-contact way to drive the object to be pushed needs to rely on the electromagnetic force to offset the gravity and friction force. It has the advantages of greater thrust, greater displacement and lower power consumption. High-precision continuous zoom. Moreover, when there are multiple motor mechanisms, the piezoelectric actuator 7100 does not have a magnet coil structure, so there is no problem of magnetic interference. In addition, the piezoelectric actuator 7100 can be self-locked by the friction between the components, so the abnormal shaking noise of the periscope camera module during optical zooming can be reduced.
  • the first driving element 7421 and the second driving element 7431 are implemented as the piezoelectric actuator 7100, wherein the first driving element 7421 is configured to drive The first driving carrier 744 drives the zoom portion 722 to move along the optical axis; the second driving element 7431 is configured to drive the second driving carrier 745 to drive the focusing portion 723 along the optical axis. move in the direction of the optical axis.
  • the first driving module 742 includes one of the first driving elements 7421
  • the second driving module 743 includes one of the second driving elements 7431 , that is, the first driving module 742 includes one piezoelectric actuator 7100
  • the second driving module 743 includes one piezoelectric actuator 7100 .
  • first driving element 7421 and the second driving element 7431 are located on the first side of the zoom lens group 720 , that is, in the embodiment of the present application, they are used to drive the first driving carrier 744
  • the piezoelectric actuator 7100 and the piezoelectric actuator 7100 for driving the second driving carrier 745 are arranged on the same side of the zoom lens group 720, so that the first driving element
  • the arrangement of 7421 and the second driving element 7431 in the housing 760 is more compact, and occupies less longitudinal space of the housing 760 .
  • the longitudinal space of the casing 760 refers to the space occupied by the casing 760 in the length direction thereof, and correspondingly, the lateral space of the casing 760 refers to the width of the casing 760 .
  • the space occupied in the direction, the height space of the casing 760 refers to the space occupied by the casing 760 in the height direction.
  • the zooming portion 722 is driven by the first driving element 7421 and the zooming portion 722 is driven by the first driving element 7421
  • the zooming portion 722 is driven by the first driving element 7421
  • the relative positional relationship (especially the relative inclination relationship) between the zooming portion 722 and the focusing portion 723 can be reduced, so as to improve the focusing portion 723 and the focusing portion 723.
  • the consistency between the zooming parts 722 reduces the possibility of image quality degradation of the periscope camera module due to the inclination of the zooming part 722 and the focusing part 723 .
  • the first driving element 7421 and the second driving element 7431 are located on the same side of the optical axis, and the first driving element 7421 and the second driving element 7431 are located on the same side.
  • the driving element 7421 and the second driving element 7431 are arranged in opposite directions, or in other words, the first driving element 7421 and the second driving element 7431 on the same side are arranged opposite to each other.
  • the compactness of the arrangement of the first driving element 7421 and the second driving element 7431 in the space formed by the housing 760 is improved.
  • the first driving element 7421 and the second driving element 7431 are implemented as piezoelectric actuators 7100 , which include a piezoelectric active part 7110 and a piezoelectric active part 7110 extending from the piezoelectric active part 7110 .
  • Driven shaft 7120 If the piezoelectric active part 7110 is set as the head of the piezoelectric actuator 7100, the driven shaft 7120 is set as the tail of the piezoelectric actuator 7100, and the piezoelectric actuator is set If the head of the actuator 7100 is in the front and the tail is in the back, the first direction is set, and the head of the piezoelectric actuator 7100 is set in the back and the tail is in the front.
  • the first direction is A driving element 7421 is arranged in the first direction
  • the second driving element 7431 is arranged in the second direction, that is, in this example, the tail of the first driving element 7421 is adjacent to the second driving element 7431 the tail.
  • the first driving element 7421 and the second driving element 7431 have the same installation height with respect to the bottom surface of the housing 760 , that is, the first piezoelectric
  • the actuator 7420 and the second piezoelectric actuator 7430 have the same mounting height with respect to the bottom surface of the housing 760, that is, the first driving element 7421 and the second driving element 7431 are in
  • the heights of the housing 760 can be arranged to be on the same straight line.
  • the consistency of the focusing portion 723 and the zooming portion 722 in the height direction set by the housing 760 after being driven by the first driving element 7421 and the driving element is relatively higher , that is, after the zooming part 722 is driven by the first driving element 7421 and the focusing part 723 is driven by the second driving element 7431, the zooming part 722 and the focusing part 723 are in the
  • the uniformity in the height direction set by the casing 760 is relatively higher to ensure the imaging quality of the periscope camera module.
  • the first driving element 7421 and the second driving element 7431 are relatively aligned in the width direction set by the housing 760 . That is, more preferably, in the embodiment of the present application, the first driven shaft 7422 of the first piezoelectric actuator 7420 and the second driven shaft 7432 of the second piezoelectric actuator 7430 are mutually Align. That is, the first driving element 7421 and the second driving element 7431 are also aligned in the width direction of the first side of the optical axis, so as to further increase the first driving element 7421 and the first driving element 7421 and the first driving element 7431. The consistency and compactness of the spatial arrangement of the two driving elements 7431, and the consistency of the focusing portion 723 and the zooming portion 722 after being driven are increased.
  • the first driving element 7421 can be suspended and fixed to the casing by fixing the head of the first driving element 7421 to the first side wall of the casing 760 . 760 and the tail of the first driving element 7421 extends into the receiving space formed by the first driving carrier 742 and the bottom surface of the housing. At the same time, by fixing the head of the second driving element 7431 to the second side wall of the housing 760 opposite to the first side wall, the tail of the second driving element 7431 is extended into the in the receiving space formed by the second driving carrier 743 and the bottom surface of the casing.
  • the first driving element 7421 and the second driving element 7431 can be arranged in other ways, for example, in the variant implementation as shown in FIG. 7A , the first driving element 7421 is arranged in the second direction, and the second driving element 7431 is arranged in the first direction, that is, in this variant implementation, the head of the first driving element 7421 corresponds to the first driving element 7421 The head of the two driving elements 7431.
  • the first driving element 7421 and the second driving element 7431 can also be arranged in the same direction.
  • the first driving element 7421 and the second driving element 7431 are arranged in the first direction at the same time, or the first driving element 7421 and the second driving element 7431 are arranged in the second direction at the same time (as shown in FIG. 7B).
  • the driving assembly 740 further includes: A guide structure 746 on a second side of the optical axis opposite the first side, the guide structure 746 being configured to guide the focusing portion 723 and the zoom portion 722 along the optical axis as set move in the direction.
  • the first driving element 7421 and the second driving element 7431, and the guiding structure 746 are located on both sides of the optical axis, respectively.
  • the internal space of the periscope camera module is fully utilized, so as to facilitate the lightening and thinning of the periscope camera module.
  • the first driving element 7421 and the second driving element 7431 share a guiding structure 746 , that is, the first driving element 7421 and the second driving element 7431 share a guiding structure 746 A driving carrier 744 and the second driving carrier 745 share a guiding structure 746 .
  • the relative positional relationship between the first driving carrier 744 and the second driving carrier 745 can be stably maintained. , so as to stably maintain the relative positional relationship between the focus portion 723 and the zoom portion 722 of the zoom lens group 720 , so as to improve the resolution capability of the zoom lens group 720 .
  • the guide structure 746 includes: a first support portion 7461 and a second support portion 7461 formed on the housing 760 at intervals.
  • the guide rod 7463 is flush with the driven shaft 7120 of the first driving element 7421 and the driven shaft 7120 of the second driving element 7431, In this way, the risk of inclination between the focusing part and the zooming part can be reduced, so as to ensure the imaging quality of the periscope camera module.
  • the guiding structure 746 of other structures may also be used, for example, a guiding structure based on a ball scheme, or a guiding structure based on a slider scheme. limited by this application.
  • the first drive module 742 includes two of the first drive elements 7421 , wherein one of the first drive elements 7421 is configured to extend from the first drive element 7421 .
  • the first side of a driving carrier 744 drives the first driving carrier 744 to drive the zoom portion 722 to move along the direction set by the optical axis, and the other first driving element 7421 is configured to move from the
  • the second side of the first driving carrier 744 opposite to the first side drives the first driving carrier 744 to drive the zoom portion 722 to move along the direction set by the optical axis.
  • the second driving module 743 includes two of the second driving elements 7431 , wherein one of the second driving elements 7431 is configured to drive the second driving carrier 745 from the first side of the second driving carrier 745
  • the carrier 745 is driven to drive the focusing portion 723 to move along the direction set by the optical axis
  • another second driving element 7431 is configured to move from the first side of the second driving carrier 745 to the first side.
  • the opposite second side drives the second driving carrier 745 to drive the focusing portion 723 to move along the direction set by the optical axis.
  • the first driving module 742 includes two piezoelectric actuators 7100 , wherein the two piezoelectric actuators 7100 are It is configured to drive the first driving carrier 744 simultaneously from opposite sides of the first driving carrier 744 to drive the zoom portion 722 to move along the direction set by the optical axis; and, the second The drive module 743 includes two of the piezoelectric actuators 7100 , wherein the two piezoelectric actuators 7100 are configured to simultaneously drive the second drive from opposite sides of the second drive carrier 745
  • the carrier 745 drives the focusing portion 723 to move along the direction set by the optical axis.
  • the guiding structure 746 is not configured. It should be understood that since piezoelectric actuators 7100 are provided on both sides of the first driving carrier 744 and the second driving carrier 745, respectively, the piezoelectric actuator 7100 on the first side and the piezoelectric actuator 7100 on the first side The piezoelectric actuators 7100 on the two sides can restrict and balance each other during the driving process, so that the use of the guiding structure 746 can be avoided.
  • FIGS. 7C to 7J illustrate an exemplary layout of the piezoelectric actuator 7100 in the housing.
  • the first driving The two piezoelectric actuators 7100 of the module 742 are arranged in the same direction
  • the two piezoelectric actuators 7100 of the second driving module 743 are arranged in the same direction
  • the piezoelectric actuators of the first driving module 742 are arranged in the same direction.
  • the actuator 7100 is opposite to the piezoelectric actuator 7100 of the second driving module 743 . It should be understood that, in addition to the layouts shown in FIGS.
  • the two piezoelectric actuators 7100 of the first driving module 742 and the two piezoelectric actuators 7100 of the second driving module 743 can also be arranged in the housing in other ways, which are not limited by the present application.
  • the first driving element 7421 and the second driving element 7431 can be electrically connected in the following manner on an external power supply. For example, it can be electrically connected to the electrode layers 7115 of the first driving element 7421 and the second driving element 7431 and the electrical conduction part 7114 of the electrode plate 7111 through a connection circuit, which can be implemented as a flexible board connection with or a plurality of lead wires for electrical connection with the outside through the connection circuit.
  • the first driving element 7421 and the second driving element 7431 can also be directly led out through the flexible board, and electrically connected to the circuit board 731 of the photosensitive component 730 . connect.
  • at least two LDS grooves are arranged on the surface of the casing 760, the depth of the LDS grooves is not greater than 20-30 ⁇ m, and the width is not less than 60 ⁇ m.
  • LDS laser direct structuring technology
  • the LDS grooves are plated on the surface of the grooves.
  • a conductive plating layer (for example, it can be a plating layer of nickel, palladium and gold), so as to avoid the interference of other metals inside, and the connection circuit of the first driving element 7421 and the second driving element 7431 is connected with the conductive plating layer in the LDS tank, Thereby, the circuit is derived and electrically connected to the circuit board 731 of the photosensitive component 730 .
  • at least two wires can also be molded into the housing 760 through Insert Molding technology, so as to connect the connection circuit of the first driving element 7421 and the second driving element 7431 with the wires
  • the electrical connection leads out the circuit, and is electrically connected with the circuit board 731 of the photosensitive component 730 .
  • the driving component 740 further includes a device for driving the photosensitive component 730 in a plane perpendicular to the optical axis
  • a third driving module 747 that moves and/or drives the light deflection assembly 710 to rotate for optical image stabilization.
  • the third driving module 747 is configured to drive the photosensitive component 730 to move in a plane perpendicular to the optical axis to perform optical image stabilization.
  • the third driving module 747 includes at least two third driving elements 7471, and the third driving elements 7471 are implemented as the piezoelectric actuator 7100, That is, in this embodiment, the third driving module 747 also samples the piezoelectric actuator 7100 to perform optical anti-shake.
  • one of the third driving elements 7471 is configured to drive the photosensitive member 730 to move along a first direction in a plane perpendicular to the optical axis, and the other of the third driving elements
  • the element 7471 is configured to drive the photosensitive assembly 730 to move along a second direction in a plane perpendicular to the optical axis, the second direction being perpendicular to the first direction, that is, the third driving module 747 achieves optical image stabilization in two directions through the piezoelectric actuator 7100 .
  • the long side of the photosensitive chip 732 is defined as the X-axis direction
  • the short side of the photosensitive chip 732 is defined as the Z direction.
  • the third driving module 747 The photosensitive chip 732 is driven by the piezoelectric actuator 7100 to move in the X-axis direction and the Z-axis direction, so as to perform optical image stabilization in the X-axis direction and optical image stabilization in the Z-axis direction.
  • the driving assembly 740 includes a first frame 747 and a second frame 748 , wherein the photosensitive assembly 730 is disposed on the first frame 747 , so The second frame 748 is disposed outside the first frame 747 and surrounds the first frame 747 . Particularly, as shown in FIG. 8B , in this embodiment, the driving assembly 740 includes a first frame 747 and a second frame 748 , wherein the photosensitive assembly 730 is disposed on the first frame 747 , so The second frame 748 is disposed outside the first frame 747 and surrounds the first frame 747 . Particularly, as shown in FIG.
  • one of the third driving elements 7471 is mounted on the second frame 748 and configured to drive the first frame 747 to drive the photosensitive assembly 730 moving along the first direction in a plane perpendicular to the optical axis; the other third driving element 7471 is configured to drive the second frame 748 to pass the drive for driving the first frame 747
  • the third driving element 7471 drives the first frame 747 to drive the photosensitive component 730 to move along the second direction in a plane perpendicular to the optical axis.
  • one of the piezoelectric actuators 7100 is mounted on the long side (ie, the side in the X-axis direction) of the second frame 748, for example, by An adhesive (preferably, an adhesive having elasticity) is attached to the long side of the second frame 748 and the driving part of the piezoelectric actuator 7100 is connected to the first frame 747, so that when the pressure When the electric actuator 7100 is driven, the piezoelectric actuator 7100 can drive the first frame 747 to drive the photosensitive component 730 to move along the X-axis direction through the first frame 747 to perform the X-axis directional optical image stabilization.
  • An adhesive preferably, an adhesive having elasticity
  • another piezoelectric actuator 7100 is mounted to the housing (eg, mounted to a side wall of the housing), and the The driving part of the piezoelectric actuator 7100 is connected to the short side of the second frame 748, so that when the piezoelectric actuator 7100 is driven, the piezoelectric actuator 7100 can drive the second frame
  • the frame 748 uses the third driving element 7471 for driving the first frame 747 as a transmission bridge to drive the first frame 747 to drive the photosensitive assembly 730 along a plane perpendicular to the optical axis. Move in the Z-axis direction to perform optical image stabilization in the Z-axis direction.
  • FIG. 8C illustrates a modified embodiment of the third driving module 747 and the photosensitive assembly 730 according to an embodiment of the present application.
  • the piezoelectric actuator 7100 for directly driving the first frame 747 is also disposed on the second frame The short side of the 748. It should be understood that when the two third driving elements 7471 are disposed on the short sides of the second frame 748 at the same time, the photosensitive assembly 730 (especially the circuit board and the photosensitive chip 732 ) The height dimension in the axial direction can be reduced.
  • the two third driving elements 7471 are simultaneously disposed on the short sides of the second frame 748 , and the second frame 748 is in the Z-axis direction
  • One long side of the photosensitive component 730 in the Z-axis direction can be further reduced in this way. That is, in this modified embodiment, the second frame 748 has a U-shaped structure.
  • FIG. 8E illustrates another modified embodiment of the third driving module 747 and the photosensitive assembly 730 according to an embodiment of the present application.
  • the third driving module 747 includes one of the piezoelectric actuators 7100 for driving the photosensitive component 730 to move along the X-axis direction, so as to perform the X-axis movement.
  • directional optical image stabilization That is, in this modified embodiment, the third driving module 747 can only provide optical image stabilization in one direction.
  • the photosensitive component 730 is mounted on the first frame 747
  • the piezoelectric actuator 7100 is mounted on the short side of the first frame 747 .
  • the edge is used to drive the first frame 747 to drive the photosensitive component 730 to move along the X-axis direction, so as to perform optical image stabilization in the X-axis direction.
  • a long side of the first frame 747 can also be removed.
  • FIG. 8F illustrates yet another modified embodiment of the third driving module 747 and the photosensitive assembly 730 according to the embodiment of the present application.
  • the third driving module 747 includes a piezoelectric actuator 7100 for driving the photosensitive component 730 to move along the Z-axis direction, so as to perform the Z-axis movement.
  • directional optical image stabilization That is, in this modified embodiment, the third driving module 747 can only provide optical image stabilization in one direction.
  • the photosensitive component 730 is mounted on the first frame 747
  • the piezoelectric actuator 7100 is mounted on the short side of the first frame 747 .
  • the edge is used to drive the first frame 747 to drive the photosensitive assembly 730 to move along the X-axis direction, so as to perform optical image stabilization in the Z-axis direction.
  • a long side of the first frame 747 can also be removed.
  • FIG. 9 illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • the third driving module 747 uses other driving elements as drivers to realize optical anti-shake
  • the function object of the third driving module 747 is the light turning component, that is, , in this variant embodiment, the third driving module 747 uses other types of driving elements to perform optical anti-shake by driving the light turning component to rotate.
  • the third driving module 747 includes at least two third driving elements 7471 , and the third driving elements 7471 are implemented as conventional electromagnetic motors 7200 , wherein, One of the electromagnetic motors 7200 is configured to drive the light turning assembly 710 to rotate around the first axis, and the other electromagnetic motor 7200 is configured to drive the light turning assembly 710 to rotate around the second axis, so The second axis is perpendicular to the first axis, and in this way, the optical image stabilization of the periscope camera module in two directions is realized.
  • FIG. 10 illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • the third driving module 747 still acts on the light turning assembly 710
  • the third driving module 747 adopts other driving elements Acting as a driver to achieve optical image stabilization in both directions.
  • the third driving module 747 includes at least two third driving elements 7471 , and the third driving elements 7471 are implemented as piezoelectric traveling wave rotary ultrasonic actuation The device 7300, wherein one of the piezoelectric traveling-wave rotary ultrasonic actuators 7300 is configured to drive the light-reflecting assembly 710 to rotate around a first axis, and the other piezoelectric traveling-wave rotary ultrasonic actuators 7300 is configured to drive the light turning assembly 710 to rotate around a second axis, the second axis is perpendicular to the first axis, in this way, the periscope camera module can be rotated in two directions. Optical image stabilization.
  • the piezoelectric traveling wave rotary ultrasonic actuator 7300 includes a stator 7301 , a rotor 7302 , and a driving and control device 7303 .
  • the stator 7301 and the rotor 7302 may both be disc-shaped structures (as shown in FIG. 11A and FIG. 11C ) or annular structures (as shown in FIG. 11B and FIG. 11D ).
  • the contact surface of 7301 is covered with a layer of friction material with special properties, and the rotor 7302 and the stator 7301 are pressed together by a certain axial force.
  • the stator 7301 is a combination of a slotted or disc-shaped annular elastic body (vibrating body) and a piezoelectric ceramic (piezoelectric conversion material). One or two layers of piezoelectric material are pasted on the back or both sides of the stator 7301. ceramics.
  • the piezoelectric traveling wave rotary ultrasonic motor uses the circumferential propagation of traveling waves to drive the rotor 7302 to rotate.
  • the traveling wave makes the elastic body of the stator 7301 move along the elliptical trajectory along the surface particles where the stator 7301 contacts the rotor 7302, and the stator 7301 is used to contact the rotor 7302.
  • the friction force pushes the rotor 7302 to rotate.
  • the rotor 7302 includes a moving body.
  • a rotating shaft can be provided in the center of the rotor 7302, and the rotating shaft is suitable for being fixed with the moving body, so that the rotor 7302 can pass through.
  • the rotating shaft outputs rotation.
  • 11E and 11F show a polarization distribution form of the piezoelectric ceramics of the piezoelectric traveling wave rotary ultrasonic motor used in the present application.
  • B area phase
  • the length of the S area is 1/4 wavelength, which is used to synthesize two standing waves into a traveling wave, and can also be used as a sensor for feedback signals for control and measurement; .
  • the light deflection assembly 710 further includes a second mounting carrier 713 having a mounting cavity 7131 , and the light deflection element 711 and the first mounting carrier 712 are formed by
  • the light redirecting module is mounted in the mounting cavity 7131 of the second mounting carrier 713, wherein one of the third driving elements is mounted on the first mounting carrier 712 and is configured to drive the first mounting carrier 712 to
  • the light turning assembly 710 is driven to rotate around the first axis
  • another third driving element is mounted on the second mounting carrier 713 and configured to drive the second mounting carrier 713 to pass the first mounting carrier 713
  • the mounting carrier 712 drives the light turning assembly 710 to rotate around the second axis.
  • one of the piezoelectric traveling wave rotary ultrasonic actuators 7300 is mounted on the bottom of the first mounting carrier 712 for driving and mounting on the The light turning assembly 710 of the first mounting carrier 712 rotates around the first axis to perform optical anti-shake in the first direction.
  • Another piezoelectric traveling wave rotary ultrasonic actuator 7300 is mounted on the side of the second mounting carrier 713 for rotating the second mounting carrier 713 to pass through the second mounting carrier 713 as a transmission
  • the bridge drives the first mounting carrier 712 and then drives the light deflection component 710 to rotate around the second axis, so as to perform optical image stabilization in the second direction.
  • the first axis is the Z axis
  • the first direction is the X axis direction of the photosensitive chip
  • the second axis is the X axis
  • the second direction is the photosensitive chip the Z-axis direction.
  • the third driving module 747 may also include only one piezoelectric traveling wave rotary ultrasonic actuator 7300, which is configured to drive the light turning assembly 710 Rotating around one axis to perform optical anti-shake in one direction is not limited by this application.
  • FIG. 12 is a schematic diagram illustrating yet another variant implementation of the periscope camera module according to an embodiment of the present application.
  • the third driving module 747 includes at least two third driving elements 7471, wherein one of the third driving elements 7471 is configured to drive the photosensitive assembly 730 in a direction perpendicular to the optical axis
  • the third driving element 7471 is configured to drive the light turning assembly 710 to rotate around the first axis.
  • the role of the third driving module 747 is: the light deflection assembly 710 and the photosensitive assembly 730, so as to drive the light deflection assembly 710 and the photosensitive assembly respectively by driving the light deflection assembly 710 and the photosensitive assembly 730 , realize the configuration of the optical anti-shake function of the periscope camera module in two directions.
  • one of the third driving elements 7471 is implemented as a piezoelectric actuator 7100, and the other of the third driving elements 7471 is implemented as a piezoelectric traveling wave rotary type ultrasonic actuator 7300, wherein the piezoelectric actuator 7100 is configured to drive the photosensitive component 730 to move along a first direction in a plane perpendicular to the optical axis to perform optical image stabilization in the first direction, the pressure
  • the electric traveling wave rotation type ultrasonic actuator 7300 is configured to drive the light turning component 710 to rotate around the first axis, so as to perform optical anti-shake in the second direction.
  • the first optical anti-shake direction is the X-axis direction
  • the first axis is the X-axis
  • the second optical anti-shake direction is the Z-axis direction.
  • the third driving module 747 may also include combinations of other types of driving elements, for example, one of the third driving elements 7471
  • the third driving element 7471 is implemented as a piezoelectric actuator 7100
  • the other third driving element 7471 is implemented as an electromagnetic motor 7200, which is not limited by the present application.
  • the periscope camera module based on the embodiments of the present application is clarified, wherein part of the driving mechanism of the periscope camera module adopts piezoelectric actuators as drivers to provide a sufficiently large driving force and Relatively better drive performance.
  • the piezoelectric actuator is arranged in the variable-focus periscope camera module in a reasonable manner to meet the design requirements of the periscope camera module in terms of function, structure and size.
  • FIG. 13 illustrates a schematic diagram of a variable-focus camera module according to an embodiment of the present application.
  • the variable-focus camera module according to the embodiment of the present application is implemented as a periscope camera module, which includes: a light turning element 810 , a zoom lens group 820 , a photosensitive component 830 and a driving component 840 .
  • the light turning element 810 is used to receive the imaging light from the subject, and turn the imaging light to the zoom lens group 820 .
  • the light turning element 810 is configured to turn the imaging light from the photographed object by 90°, so that the overall height dimension of the zoom camera module can be reduced.
  • the angle of the light turning element 810 turning the imaging light may have an error within 1°, which should be understood by those of ordinary skill in the art.
  • the light-reflecting element 810 may be implemented as a mirror (eg, a flat mirror), or a light-reflecting prism (eg, a triangular prism).
  • a mirror eg, a flat mirror
  • a light-reflecting prism eg, a triangular prism
  • the light turning element 810 is implemented as a light turning prism
  • the light incident surface of the light turning prism and its light emitting face are perpendicular to each other
  • the light reflecting surface of the light turning prism is perpendicular to the light incident face and the light emitting face thereof.
  • the light exit surface is inclined at an angle of 845°, so that when the imaging light enters the light turning prism in a manner perpendicular to the light incident surface, the imaging light can be turned 90° at the light reflecting surface, so that output from the light exit surface in a manner perpendicular to the light exit surface.
  • the light deflection element 810 may also be implemented as other types of optical elements, which are not limited by the present application.
  • the variable-focus camera module may further include a larger number of light-reversing elements 810.
  • TTL Total Track Length
  • the optical system of the zoom camera module with a longer total optical length (TTL: Total Track Length) can be folded in the structural dimension.
  • TTL Total Track Length
  • a larger number of light turning elements 810 can be provided to meet the size requirements of the zoom camera module.
  • the The light deflection element 810 is located on the image side of the variable-focus camera module or between any two lenses in the zoom lens group 820 .
  • the zoom lens group 820 corresponds to the light refraction element 810 and is used for receiving the imaging light from the light refraction element 810 and condensing the imaging light .
  • the zoom lens group 820 includes a fixed part 821 , a zoom part 822 and a focus part 823 along its set optical axis direction, wherein the zoom part 822 and the focus part 823
  • the focusing portion 823 can be adjusted with respect to the position of the fixed portion 821 under the action of the driving assembly 840, so as to realize the adjustment of the optical performance of the zoom camera module, including but not limited to optical focusing and optical zooming Function.
  • the zoom part 822 and the focus part 823 can be adjusted by the drive assembly 840, so that the focal length of the zoom lens group 820 of the variable-focus camera module can be adjusted, so that images of different distances can be clearly captured. subject.
  • the fixing portion 821 includes a first lens barrel and at least one optical lens accommodated in the first lens barrel.
  • the fixed portion 821 is adapted to be fixed to the non-moving portion of the driving assembly 840 , so that the position of the fixed portion 821 in the zoom lens group 820 remains constant.
  • the fixing portion 821 may not be provided with the first lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that fit with each other. lens. That is, in other examples of the application, the fixed portion 821 may be implemented as a "bare lens".
  • the zoom portion 822 includes a second lens barrel and at least one optical lens accommodated in the second lens barrel, wherein the zoom portion 822 is suitable for being used by the second lens barrel.
  • the driving component 840 is driven to move along the optical axis direction set by the zoom lens group 820, so as to realize the optical zoom function of the zoom camera module, so that the zoom camera module can realize Clear shots of subjects at different distances.
  • the zoom portion 822 may not be provided with the second lens barrel, but only includes at least one optical lens, for example, it only includes a plurality of optical pieces that are fitted with each other lens. That is, in other examples of the application, the zoom portion 822 may also be implemented as a "bare lens".
  • the focusing portion 823 includes a third lens barrel and at least one optical lens accommodated in the third lens barrel, wherein the focusing portion 823 is suitable for being used by the third lens barrel.
  • the driving component 840 is driven to move along the direction of the optical axis set by the zoom lens group 820, so as to realize the focusing function of the zoom camera module. More specifically, the optical focusing achieved by driving the focusing part 823 can compensate for the focus shift caused by moving the zooming part 822, thereby compensating the imaging performance of the zoom camera module, so that the imaging quality thereof satisfies the requirements. Default requirements.
  • the focusing portion 823 may not be provided with the third lens barrel, but only includes at least one optical lens, for example, it only includes a plurality of optical pieces fitted with each other lens. That is, in other examples of the application, the focusing portion 823 may also be implemented as a "bare lens".
  • the fixed part 821 , the zoom part 822 and the focus part 823 of the zoom lens group 820 are arranged in sequence (that is, In the zoom lens group 820, the zoom portion 822 is located between the fixed portion 821 and the focus portion 823), that is, the imaging light from the light-refracting element 810 passes through the zoom lens group 820, it will pass through the fixed part 821, then through the zoom part 822, and then through the focusing part 823 in sequence.
  • the relative positional relationship between the fixed part 821 , the zooming part 822 and the focusing part 823 can also be adjusted.
  • the focusing portion 823 is disposed between the zooming portion 822 and the fixing portion 821 . It should be understood that in the embodiment of the present application, the relative positional relationship between the fixed part 821 , the zoom part 822 and the focus part 823 can be designed according to the optical design requirements and structural design of the zoom camera module adjustment is required.
  • the focusing portion 823 and the zooming portion 822 are disposed adjacent to each other. That is, the position of each part in the zoom lens group 820 according to the embodiment of the present application is preferably configured such that the zoom part 822 is located between the fixed part 821 and the focusing part 823, or, all the The focusing portion 823 is located between the fixing portion 821 and the zooming portion 822 . It should be understood that the zooming part 822 and the focusing part 823 are parts of the zoom lens group 820 that need to be moved. Therefore, the focusing part 823 and the zooming part 822 are arranged adjacent to each other. Such a position The setting facilitates the arrangement of the drive assembly 840 , which will be expanded in the detailed description of the drive assembly 840 .
  • the zoom lens group 820 includes one of the fixed parts 821 , one of the zoom parts 822 and one of the focus parts 823 as an example,
  • the selection of the specific number of the fixing portion 821, the zooming portion 822 and the focusing portion 823 is not limited by the present application, and may be selected according to The optical design requirements of the variable-focus camera module are adjusted.
  • variable-focus camera module further includes a light blocking element (not shown in the figure) disposed on the photosensitive path of the photosensitive assembly 830 Schematic), wherein the light blocking element can at least partially block the projection of imaging light, so as to reduce the influence of stray light on the imaging quality of the variable-focus camera module as much as possible.
  • a light blocking element (not shown in the figure) disposed on the photosensitive path of the photosensitive assembly 830 Schematic), wherein the light blocking element can at least partially block the projection of imaging light, so as to reduce the influence of stray light on the imaging quality of the variable-focus camera module as much as possible.
  • the photosensitive component 830 corresponds to the zoom lens group 820 and is used to receive the imaging light from the zoom lens group 820 and perform imaging, wherein the photosensitive component 830 includes a circuit board 831 , a photosensitive chip 832 electrically connected to the circuit board 831 , and a filter element 833 held on the photosensitive path of the photosensitive chip 832 . More specifically, in the example shown in FIG. 14 , the photosensitive assembly 830 further includes a bracket 834 disposed on the circuit board 831 , wherein the filter element 833 is mounted on the bracket 834 to are held on the photosensitive path of the photosensitive chip 832 .
  • the specific implementation of the filter element 833 held on the photosensitive path of the photosensitive chip 832 is not limited by the present application.
  • the filter element 833 can be implemented as a filter film and coated on the surface of a certain optical lens of the zoom lens group 820 to have a filtering effect.
  • the photosensitive component 830 can further include a film mounted on the bracket. A filter element holder (not shown), wherein the filter element 833 is held on the photosensitive path of the photosensitive chip 832 by being mounted on the filter element holder.
  • the new technical requirements mainly focus on two aspects: relatively larger driving force, and better driving performance (specifically including: higher-precision driving control and longer driving stroke). Moreover, in addition to finding a driver that meets the requirements of new technologies, it is also necessary to consider whether the selected driver can adapt to the current development trend of lightening and thinning of camera modules when selecting a new driver.
  • the inventor of the present application proposes a piezoelectric actuator with a novel structure, which can meet the technical requirements of the variable-focus camera module for the driver. Furthermore, the piezoelectric actuator is further arranged in the variable-focus camera module in an appropriate arrangement manner, so that it meets the structural design requirements and size design requirements of the variable-focus camera module.
  • the driving assembly 840 for driving the zoom lens group 820 includes: a driving housing 841 , a first driving element 842 , and a second driving element 843 , a first carrier 844 and a second carrier 845, wherein the first driving element 842, the second driving element 843, the first carrier 844 and the second carrier 845 are accommodated in the driving housing 841 , so that the variable-focus camera module has a relatively more compact structural arrangement.
  • the first driving element 842 and the second driving element 843 are implemented as piezoelectric actuators 8100, and the zoom portion 822 is mounted on the first carrier 844, so The focusing portion 823 is mounted on the second carrier 845, wherein the first driving element 842 is configured to drive the first carrier 844 to drive the zoom portion 822 along the direction set by the optical axis Moving, the second driving element 843 is configured to drive the second carrier 845 to drive the focusing portion 823 to move along the direction set by the optical axis, and in this way, optical zooming is performed. That is, in the embodiment of the present application, the piezoelectric actuator 8100 is used as a driver for driving the zoom portion 822 and the focus portion 823 in the zoom lens group.
  • the piezoelectric actuator 8100 according to the embodiment of the present application includes: a piezoelectric active part 8110 and a friction driving part 8120 drivably connected to the piezoelectric active part 8110 , wherein, in the After the piezoelectric actuator 8100 is turned on, the friction driving part 8120 is configured to provide a driving force for driving the first carrier 844 or the second carrier 845 under the action of the piezoelectric active part 8110 . driving force.
  • the piezoelectric active part 8110 is implemented as a piezoelectric ceramic element, which has a strip-like structure.
  • the piezoelectric active part 8110 is a piezoelectric laminated structure, which has multiple groups of first polarized regions A1 and second polarized regions A2 arranged alternately with each other.
  • the first polarized regions A1 and The second polarization regions A2 have opposite polarization directions, wherein after the piezoelectric actuator 8100 is turned on, multiple groups of the first polarization regions A1 and the second polarization regions A1 and the second polarization regions are alternately arranged.
  • the polarization area A2 is deformed in different directions to drive the friction driving part 8120 to move along a preset direction in the manner of traveling waves, so as to provide a driving force for driving the first carrier 844 or the second carrier 845 , such as Figure 16.
  • the piezoelectric active part 8110 has a plurality of sets of first polarized regions A1 and second polarized regions A2 arranged alternately with each other, the first polarized regions The polarization directions of A1 and the second polarization region A2 are opposite.
  • multiple sets of the first polarized area A1 and the second polarized area A2 that alternate with each other are arranged in a side-by-side manner, that is, multiple sets of the alternately set of the first polarized areas A1 and A2 are arranged side by side.
  • the first polarized area A1 and the second polarized area A2 are on the same straight line.
  • the piezoelectric active part 8110 is electrically connected to an external excitation power supply through a wire, so that after the piezoelectric active part 8110 is provided with power excitation, the piezoelectric active part 8110 has an inverse piezoelectric effect.
  • the electroactive part 8110 is deformed. It should be understood that the deformation of the piezoelectric active part 8110 will drive the friction driving part 8120 to move in a traveling wave manner, that is, the deformation of the piezoelectric active part 8110 can be transmitted to the friction driving part 8120 , so as to provide a driving force for driving the first carrier 844 or the second carrier 845 through the traveling wave motion of the friction driving part 8120 .
  • each group of the first polarization region A1 and the second polarization region A2 may also have the same polarization direction, wherein, in the piezoelectric actuator 8100 After being turned on, by inputting alternating voltage signals to each group of the first polarization area A1 and the second polarization area A2, multiple groups of the first polarization area A1 and the first polarization area A1 and the first polarization area A1 are alternately arranged.
  • the polarization region A2 is deformed in different directions to drive the friction driving portion 8120 to move along a predetermined direction in the form of a standing wave, which is not limited by the present application.
  • the friction driving part 8120 includes a plurality of friction driving elements 8121 spaced apart from each other, wherein the first end of each friction driving element 8121 is coupled to the
  • the piezoelectric active part 8110 is connected to the piezoelectric active part 8110 in such a way that the friction driving part 8120 can be driveably connected.
  • the number of the plurality of friction driving elements 8121 may be 2, 3, 4 or more, preferably, the number of the friction driving elements 8121 exceeds 3 (ie, greater than or equal to 3).
  • the piezoelectric actuator 8100 can control the length dimension of the piezoelectric actuator 8100 while realizing the stable output of the linear driving force, so that it is suitable for being installed in a relatively small device such as a camera module.
  • the length dimension of the piezoelectric actuator 8100 is almost equal to the dimension of the piezoelectric active part 8110 (and the piezoelectric active part 8110 has an elongated shape).
  • the length dimension of the piezoelectric actuator 100 is less than or equal to 20 mm, preferably, the length dimension thereof is less than or equal to 10 mm.
  • the plurality of friction driving elements 8121 are located in the middle region of the piezoelectric active part 8110, so that when the acted object is driven by the plurality of friction driving elements 8121, the driven object will move more smoothly and linearly.
  • the friction driving element 8121 has a columnar structure, which protrudes from the upper surface of the piezoelectric active part 8110 . From the outside, the piezoelectric actuator 8100 has a rack shape. It should be understood that in other examples of the present application, the friction driving element 8121 may also be implemented in other shapes, for example, its cross-sectional shape may be set to be a trapezoid, which is not limited by the present application.
  • the at least three friction driving elements 8121 are arranged equidistantly and alternately, which is conducive to improving the Driving stability of the piezoelectric actuator 8100.
  • the second ends of the plurality of friction driving elements 8121 opposite to the first ends are on the same plane, for example, in the example shown in FIG. 15 , the end faces of the second ends of the plurality of friction driving elements 8121 are on the same horizontal plane. That is, in this embodiment, the end surfaces of the second ends of the plurality of friction driving elements 8121 form the same plane.
  • a layer of friction material may be further applied on the plane (ie, the plane defined by the end surfaces of the second ends of the plurality of friction driving elements 8121 ) to increase the frictional force .
  • a mover is usually arranged on the upper surface of the friction driving part 8120 to transmit the traveling wave drive provided by the friction driving part 8120 through the mover. force and act on the driven object. That is, a friction actuating portion 8130 (the friction actuating portion 8130 serving as the mover) is provided between the friction driving portion 8120 and the driven object, so that when the piezoelectric actuator 8100 is driven When the friction driving part 8120 is turned on, the traveling wave motion of the friction driving part 8120 will drive the friction driving part 8130 to move linearly. Heading in the opposite direction.
  • the piezoelectric actuator 8100 further includes: a frictional connection layer 8140 stacked on the piezoelectric active part 8110 , each of the frictional driving elements 8121 with their first One end is coupled to the piezoelectric active part 8110 by being fixed to the frictional connection layer 8140 , in this way, the deformation of the piezoelectric active part 8110 can be better transmitted through the frictional connection layer 8140 to the friction drive part 8120.
  • the frictional driving element 8121 and the frictional connection layer 8140 may have a one-piece structure.
  • the frictional drive element 8121 and the frictional connection layer 8140 may have a split structure, ie, the two are separate components.
  • the piezoelectric actuator 8100 has a relatively more optimized size.
  • the length dimension of the piezoelectric actuator 8100 is less than or equal to 20 mm, preferably, the length dimension is less than or equal to 10 mm, for example, it may be 6 mm or 4.82 mm.
  • the width dimension of the piezoelectric actuator 8100 is less than or equal to 1 mm, preferably, the width dimension is less than or equal to 0.87 mm.
  • the height dimension of the piezoelectric actuator 8100 is less than or equal to 1 mm.
  • the height dimension of the piezoelectric actuator 8100 is determined by the dimensions of the piezoelectric active part 8110 and the friction driving part 8120 .
  • the piezoelectric actuator 8100 Compared with the traditional electromagnetic driver, the piezoelectric actuator 8100 has the advantages of small size, large thrust and high precision. Quantitatively, the piezoelectric actuator 8100 according to the embodiment of the present application can provide a driving force of 0.86N to 2N, which is sufficient to drive a component with a weight greater than 100 mg.
  • the piezoelectric actuator 8100 has other advantages compared to traditional electromagnetic motor solutions and memory alloy motor solutions, including but not limited to: relatively small size (with Slender shape), better response accuracy, relatively simpler structure, relatively simpler drive control, high product consistency, no electromagnetic interference, relatively larger stroke, short stabilization time, relatively small weight, etc.
  • variable-focus camera module requires the driver configured with the variable-focus camera module to have a long driving stroke and to ensure better alignment accuracy.
  • additional guide rods or ball guides need to be designed, and large-sized driving magnets/coils need to be adapted to the side of the lens, and balls, shrapnel, and suspension wires need to be installed.
  • Other auxiliary positioning devices in order to accommodate more components, ensure structural strength and reserve structural gaps, often lead to large lateral dimensions of the module, complex structural design, and heavy module weight.
  • the memory alloy motor solution is limited by the relatively small stroke that the memory alloy solution can provide in the same proportion, and there are reliability risks such as potential disconnection.
  • the piezoelectric actuator 8100 has a relatively simple structure, and the assembly structure is simpler.
  • the size of the piezoelectric active part 8110, the friction driving part 8120 and other components are basically irrelevant to the size of the motion stroke, so it is used in optical zoom products.
  • the piezoelectric actuator 8100 can achieve the advantages of large thrust, small size, and small weight, and at the same time, it can be designed to match a larger stroke or heavier device weight, and the integration degree in the design is also higher.
  • the piezoelectric actuator 8100 pushes the object to be pushed to perform micron-scale motion in a frictional contact manner.
  • the non-contact way to drive the object to be pushed requires the electromagnetic force to counteract the gravity, and the frictional force It has the advantages of greater thrust, greater displacement and lower power consumption, and at the same time, the control accuracy is higher, and high-precision continuous zoom can be achieved.
  • the piezoelectric actuator 8100 does not have a magnet coil structure, so there is no problem of magnetic interference.
  • the piezoelectric actuator 8100 can be self-locked by the friction force between the components, so the abnormal shaking noise of the zoom camera module during optical zooming can be reduced.
  • the piezoelectric actuator 8100 After selecting the piezoelectric actuator 8100 as the first driving element 842 and the second driving element 843, the piezoelectric actuator 8100 needs to be arranged in the zoom camera in a reasonable manner In the module, more specifically, in this embodiment, the piezoelectric actuator 8100 needs to be arranged in the drive housing 841 in a reasonable manner to meet the optical performance of the variable-focus camera module Adjustment requirements, structural design requirements and size design requirements.
  • the driving assembly further includes a first pre-pressing part 850 and a second pre-pressing part 860 , wherein the first driving element 842 passes through the first A pre-compression member 850 is sandwiched between the first carrier 844 and the driving housing 841, and is configured to drive the first carrier 844 to drive the zoom portion 822 along the optical axis
  • the set direction moves;
  • the second driving element 843 is sandwiched between the second carrier 845 and the driving housing 841 by the second pre-compression member 860, and is configured to drive
  • the second carrier 845 drives the focusing portion 823 to move along the direction set by the optical axis.
  • the first driving element 842 is clamped and disposed between the first carrier 844 and the driving housing 841 , which means that the first driving element 842 is mounted on the first carrier 844 After being connected to the driving housing 841, the friction driving part 8120 of the first driving element 842 and the driven object are in a state of pressing each other, so that the friction driving force provided by the first driving element 842 Can act on the first carrier 844 .
  • the second driving element 843 is sandwiched between the second carrier 845 and the driving housing 841, indicating that the second driving element 843 is mounted on the second Between the carrier 845 and the drive housing 841 , the friction drive part 8120 of the second drive element 843 and the driven object are in a state of pressing each other, so that the friction provided by the second drive element 843 The driving force can act on the second carrier 845 .
  • the drive assembly further includes a first friction actuation portion 8131 and a second friction actuation portion 8132 , wherein the first friction actuation portion 8131 is provided on the Between the first driving element 842 and the first carrier 844 and the friction driving part 8120 of the first driving element 842 abuts against the first friction actuating part 8131 under the action of the first pre-compression member 850 In this way, the friction driving force provided by the first driving element 842 can act on the first carrier 844 through the first friction actuating portion 8131 to drive the first carrier 844 along the optical axis. Move in the set direction.
  • the second friction actuating portion 8132 is disposed between the second driving element 843 and the second carrier 845 .
  • the friction driving part 8120 of the second driving element 843 abuts against the second friction actuating part 8132 under the action of the second pre-compression member 860, so that the friction provided by the second driving element 843
  • the driving force can act on the second carrier 845 through the second friction actuating portion 8132 to drive the second carrier 845 to move along the direction set by the optical axis.
  • the first friction actuating portion 8131 has a first surface and a second surface opposite to the first surface, wherein in the first pre- Under the action of the pressing member 850 , the first surface of the first friction actuating portion 8131 abuts against the side surface of the first carrier 844 , and the second surface thereof abuts against at least one of the plurality of friction driving elements 8121 .
  • the friction driving part 8120 of the first driving element 842 abuts against the first friction actuating part 8131 and the first friction actuating part 8131 interferes
  • the friction driving force provided by the first driving element 842 can act on the first carrier 844 through the first friction actuating portion 8131 to drive the first carrier 844.
  • the carrier 844 moves along the direction set by the optical axis.
  • the second frictional actuating portion 8132 has a third surface and a fourth surface opposite to the third surface, wherein, under the action of the second pre-compression member 860, the second frictional actuation
  • the third surface of the movable portion 8132 is in contact with the side surface of the second carrier 845
  • the fourth surface is in contact with the end surface of the second end of at least one of the friction driving elements 8121 among the plurality of friction driving elements 8121 .
  • the friction driving portion 8120 of the second driving element 843 is in contact with the second friction actuating portion 8132 and the second friction actuating portion 8132 is in contact with the second carrier 845 .
  • the The friction driving force provided by the second driving element 843 can act on the second carrier 845 through the second friction actuating portion 8132 to drive the second carrier 845 to move in the direction set by the optical axis .
  • first friction actuating portion 8131 and the second friction actuating portion 8132 are respectively provided as a separate component in the first drive Between the element 842 and the first carrier 844, and between the second driving element 843 and the second carrier 845, it should be understood that in other examples of this application, the first friction actuating portion The 8131 can also be integrally formed on the side surface of the first carrier 844, that is, the first friction actuating portion 8131 and the first carrier 844 have an integral structure, for example, the first friction actuating portion 8131 It is a friction coating applied to the side surface of the first carrier 844, which is not limited by this application.
  • the second friction actuating portion 8132 may also be integrally formed on the side surface of the second carrier 845 , that is, the second friction actuating portion 8132 and the second carrier
  • the 845 has a one-piece structure, for example, the second friction actuating portion 8132 is a friction coating coated on the side surface of the second carrier 845, which is not limited by this application.
  • the length of the first friction actuating portion 8131 is greater than the length of the first driving element 841 and the length of the second friction actuating portion 8131 is greater than The length of the second driving element 842, so that when the zooming part 822 and the focusing part 823 are driven by the first driving element 841 and the second driving element 842 in a friction driving manner, respectively, the The zooming part 822 and the focusing part 823 have sufficient strokes to ensure the linearity of movement of the zooming part 822 and the focusing part.
  • the length of the first friction actuating portion 8131 may also be less than or equal to the length of the first driving element 841 and the length of the second friction actuating portion 8131 may also be less than or equal to It is equal to the length of the second driving element 842, which is not limited by this application.
  • the stroke requirements of the zooming part 822 and the focusing part 823 are often different. Therefore, the length dimension of the first driving element 841 is different from that of the second driving element. 842 have different lengths. Generally speaking, the stroke length of the zooming part 822 is smaller than the stroke length of the focusing part 823 .
  • the length dimension of the first driving element 841 is smaller than the length dimension of the second driving element 842 , that is, in the embodiment of the present application, the length of the piezoelectric stopper 8100 The length is proportional to the stroke length of the driven object.
  • the stroke length of the zooming part 822 may also be greater than the stroke length of the focusing part 823 , that is, in some special examples, the length dimension of the first driving element 841 is also It can be larger than the length dimension of the second driving element 842, which is not limited by the present application.
  • the first pre-compression member 850 includes a first elastic element 851 , and the first elastic element 851 is arranged on the piezoelectric active part of the first driving element 842 . 8110 and the driving housing 841 to provide a pre-pressure between the friction driving part 8120 of the first driving element 842 and the first friction actuating part 8131 through the elastic force of the first elastic element 851 And through the first elastic element 851 , the first friction actuating portion 8131 abuts against the side surface of the first carrier 844 .
  • the first driving element 842 is clamped and disposed between the driving housing 841 and the first carrier 844, so that the first driving element
  • the friction driving part 8120 of 842 abuts against the first friction actuating part 8131 , and makes the first friction actuating part 8131 abut against the side surface of the first carrier 844 .
  • the first elastic element 851 is implemented as an elastic adhesive, that is, the first elastic element 851 is implemented as a glue with elasticity after curing.
  • a layer of adhesive with a thickness of 10um to 50um can be applied between the surface of the inner side wall of the drive housing 841 and the piezoelectric active part 8110 of the first drive element 842 to After the adhesive is cured and formed, the first elastic element 851 disposed between the piezoelectric active part 8110 of the first driving element 842 and the driving housing 841 is formed. That is, while the first elastic element 851 provides the pre-pressure, the first driving element 842 can also be fixed on the surface of the inner side wall of the driving housing 841 .
  • the first elastic element 851 has a relatively high flatness, that is, when applying the adhesive, it is ensured that the applied adhesive has a relatively high flatness and uniformity as much as possible, so that the The first driving element 842 can be flatly fixed on the surface of the inner side wall of the driving housing 841 , thereby improving the driving stability of the first driving element 842 .
  • the second pre-compression member 860 includes a second elastic element 861 , and the second elastic element 861 is arranged on the piezoelectric active part of the second driving element 843 . 8110 and the driving housing 841 to provide a pre-pressure between the friction driving part 8120 of the second driving element 843 and the second friction actuating part 8132 through the elastic force of the second elastic element 861 And through the second elastic element 861 , the second friction actuating portion 8132 abuts against the side surface of the second carrier 845 .
  • the second driving element 843 is clamped and disposed between the driving housing 841 and the second carrier 845, so that the second driving element
  • the friction driving part 8120 of 843 abuts against the second friction actuating part 8132 , and makes the second friction actuating part 8132 abut against the side surface of the second carrier 845 .
  • the second elastic element 861 is implemented as an elastic adhesive, that is, the second elastic element 861 is implemented as a glue with elasticity after curing.
  • a layer of adhesive with a thickness of 10um to 50um can be applied between the surface of the inner side wall of the drive housing 841 and the piezoelectric active part 8110 of the second drive element 843 to After the adhesive is cured and formed, the second elastic element 861 disposed between the piezoelectric active part 8110 of the second driving element 843 and the driving housing 841 is formed. That is, while the second elastic element 861 provides pre-pressure, the second driving element 843 can also be fixed on the surface of the inner side wall of the driving housing 841 .
  • the second elastic element 861 has relatively high flatness, that is, when the adhesive is applied, it is ensured that the applied adhesive has relatively high flatness and uniformity as much as possible, so that the The second driving element 843 can be flatly fixed to the surface of the inner side wall of the driving housing 841 , thereby improving the driving stability of the second driving element 843 .
  • the first elastic element 851 and the second elastic element 861 can also be implemented as elastic elements without viscosity, for example, the material itself has elasticity rubber, or springs, leaf springs, etc. that generate elasticity due to deformation, which are also not limited by this application.
  • the first driving element 842 and the second driving element 843 are selected to be disposed on the first side of the zoom lens group 820 at the same time, that is, the selection of The first driving element 842 and the second driving element 843 are arranged on the same side of the zoom lens group 820, so that the driving elements of the first driving element 842 and the second driving element 843 are
  • the arrangement in the housing 841 is more compact, and the longitudinal space occupied by the driving housing 841 is smaller.
  • the longitudinal space of the driving housing 841 refers to the space occupied by the driving housing 841 in the length direction thereof, and correspondingly, the lateral space of the driving housing 841 refers to the driving housing The space occupied by 841 in its width direction, and the height space of the drive housing 841 refers to the space occupied by the drive housing 841 in its height direction.
  • the zooming portion 822 is driven by the first driving element 842 and the zooming portion 822 is driven by the zoom lens group 820.
  • the second driving element 843 drives the focusing portion 823, the relative positional relationship error (especially the relative inclination relationship) between the zooming portion 822 and the focusing portion 823 can be reduced to improve the focusing portion 823
  • the consistency between the zooming part 822 and the zooming part 822 reduces the possibility that the image quality of the variable zoom camera module is degraded due to the inclination of the zooming part 822 and the focusing part 823 .
  • the first driving element 842 and the second driving element 843 are located on the same side of the zoom lens group 820, the first driving element 842 and the second driving element 843 are in the zoom lens
  • the first side of the lens group 820 is aligned in the height direction, that is, the first driving element 842 and the second driving element 843 have the same mounting height, so that the focusing portion 823 and the zooming portion
  • the consistency of the portion 822 in the height direction set by the drive housing 841 is relatively higher, that is, when the zoom portion 822 is driven by the first drive element 842 and the zoom portion 822 is driven by the second drive element 843
  • the consistency of the zooming portion 822 and the focusing portion 823 in the height direction set by the driving housing 841 is relatively higher, so as to ensure the image quality.
  • the focusing portion 823 and the zooming portion 822 of the zoom lens group 820 are disposed adjacent to each other.
  • the first driving element 842 and the second driving element 843 can also be disposed adjacent to each other, thereby reducing the overall size of the first driving element 842 and the second driving element 843
  • the size of the longitudinal space occupied by the driving housing 841 is beneficial to the development trend of miniaturization of the variable-focus camera module.
  • the driving assembly 840 further includes a guide structure 846 , and the guide structure 846 is configured to guide the focusing portion 823 and the zooming portion 822 to move along the optical axis.
  • the guide structure 846 is disposed on the second side of the zoom lens group 820 opposite to the first side . That is, in the embodiment of the present application, preferably, the first driving element 842 and the second driving element 843 (as the first part) and the guide structure 846 (as the second part) are respectively disposed in On the two opposite sides of the zoom lens group 820 , in this way, the internal space of the zoom camera module is fully utilized, so as to facilitate the lightening and thinning of the zoom camera module.
  • the first driving element 842 and the second driving element 843 share a guiding structure 846 , that is, the first carrier 844 and the first carrier 844
  • the two carriers 845 share a guiding structure.
  • the relative positional relationship between the first carrier 844 and the second carrier 845 can be stably maintained, and the zoom lens group 820 can be stably maintained.
  • the relative positional relationship between the focusing portion 823 and the zooming portion 822 is to improve the resolution capability of the zoom lens group 820 .
  • the guide structure 846 includes: a first support portion 8461 and a second support portion 8462 formed on the drive housing 841 at intervals. , and at least one guide rod 8463 built between the first support portion 8461 and the second support portion 8462 and passing through the first carrier 844 and the second carrier 845, the guide rod 8463 and the light
  • the axes are parallel so that the first carrier 844 and the second carrier 845 can be guided to move along the guide rod 8463 parallel to the optical axis.
  • the functions of the first support portion 8461 and the second support portion 8462 are to span the guide rod 8463 .
  • the first support portion 8461 and the second support portion 8462 (eg, the first support portion 8462) may be mounted on the bottom surface of the drive housing 841 8461 and the second support part 8462 can be implemented as a support frame), of course, the first support part 8461 and the second support part 8462 can also be integrally formed on the bottom surface of the drive housing 841, This is not limited by this application.
  • first support portion 8461 and the second support portion 8462 can also be implemented as side walls of the drive housing 841 , that is, the drive housing The opposite two side walls of the body 841 form the first support portion 8461 and the second support portion 8462 .
  • guide rod grooves 8464 can be provided on the first support part 8461 and the second support part 8462, and a guide rod groove 8464 can be provided on the first carrier 844 and the second carrier
  • a guide rod channel 8465 is formed in the 845 through its two side surfaces, in this way, the guide rod 8463 can be mounted on the first support part 8461 and the second support in the way of being installed in the guide rod groove 8464 part 8462 and pass through the guide rod passages 8465 of the first carrier 844 and the second carrier 845 at the same time.
  • a lubricating medium may be optionally provided in the guide rod channels 8465 of the first carrier 844 and the second carrier 845 to reduce friction.
  • the guide rod 8463 is flush with the transmission shaft 8121 of the first driving element 842 and/or the transmission shaft 8121 of the second driving element 843 , In this way, the risk of inclination between the focusing part and the zooming part can be reduced, so as to ensure the imaging quality of the variable-focus camera module.
  • FIG. 19 is a schematic diagram illustrating a variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application.
  • the drive assembly 840 further includes a first guide mechanism 847 disposed between the first carrier 844 and the drive housing 841 , and a first guide mechanism 847 disposed between the second carrier 844 and the drive housing 841 .
  • a second guide mechanism 848 between the carrier 845 and the drive housing 841, wherein the first guide mechanism 847 is configured to guide the zoom portion 822 to move along the optical axis, the second guide The guide mechanism 848 is configured to guide the focus portion 823 to move along the optical axis.
  • the first guide mechanism 847 includes at least one ball 8401 disposed between the first carrier 844 and the drive housing 841 , and is disposed in the first A receiving groove 8402 between the carrier 844 and the driving housing 841 for receiving the at least one ball 8401 .
  • the first guide mechanism 847 is the ball 8401 guide structure 846 .
  • the second guide mechanism 848 includes at least one ball 8401 disposed between the second carrier 845 and the drive housing 841 , and at least one ball 8401 disposed between the second carrier 845 and the drive housing 841 A receiving groove 8402 for receiving the at least one ball 8401 therebetween. That is, in this example, the second guide mechanism 848 is also the ball 8401 guide structure 846 .
  • the receiving groove 8402 may be formed on the side surface of the first carrier 844 and the surface of the inner side wall of the driving housing 841 , so that the at least one ball 8401 Sliding or rolling in the accommodating groove 8402, the length direction of the accommodating groove 8402 is consistent with the optical axis direction.
  • the receiving groove 8402 may be formed on the side surface of the second carrier 845 and the surface of the inner side wall of the driving housing 841 , so that the at least one ball 8401 is The receiving groove 8402 slides or rolls inside.
  • the configuration of the first guide mechanism 847 and the second guide mechanism 848 are the same, and the receiving groove 8402 of the first guide mechanism 847 and the receiving groove of the second guide mechanism 848 8402 are on the same line and connected to each other, so that the inclination between the first carrier 844 and the second carrier 845 can be reduced.
  • FIG. 20 is a schematic diagram illustrating another variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application.
  • the first guide mechanism 847 includes: at least one sliding block 8403 disposed between the first carrier 844 and the drive housing 841 , and disposed on the A sliding groove 8404 between the driving housing 841 and the first carrier 844 is suitable for the sliding of the at least one slider 8403 . That is, in this example, the first guide mechanism 847 is a slider and a slide rail structure.
  • the second guide mechanism 848 includes: at least one sliding block 8403 disposed between the second carrier 845 and the driving housing 841 , and at least one sliding block 8403 disposed between the driving housing 841 and the second A chute 8404 between the carriers 845 is suitable for the at least one slider 8403 to slide. That is, in this example, the second guide mechanism 848 is also a slider and a chute structure.
  • the sliding block 8403 is formed protrudingly on the side surface of the first carrier 844 , and the sliding groove 8404 is recessed to form a corresponding surface of the inner side wall of the driving housing 841 . Location.
  • the sliding block 8403 is formed protrudingly on the side surface of the second carrier 845 , and the sliding groove 8404 is recessedly formed at a corresponding position on the surface of the inner side wall of the driving housing 841 .
  • the slider 8403 and the chute 8404 between the first carrier 844 and the drive housing 841 are provided with the slider 8403 and the chute 8404 between the second carrier 845 and the drive housing 841
  • the settings are the same, in particular the dimensions of the slider 8403 and the dimensions of the chute 8404.
  • two sliding grooves 8404 corresponding to the first carrier 844 and the second carrier 845 provided on the drive housing 841 are on the same straight line and can be connected to each other, so that the first carrier The inclination of 844 and the second carrier 845 can be further reduced.
  • FIG. 21 is a schematic diagram illustrating a variant implementation of the variable-focus camera module according to an embodiment of the present application, wherein, in this variant embodiment, the first driving element 842 and the second driving element 843 are The setting location has changed.
  • the first carrier 844 has a first receiving cavity 8441 that is concavely formed on its side surface and extends laterally
  • the second carrier 845 has a concavely formed first accommodating cavity 8441 .
  • a second accommodating cavity 8451 extending laterally on its side surface, wherein the first driving element 842 is arranged in the first accommodating cavity 8441, and the second driving element 843 is arranged in the second accommodating cavity inside cavity 8451.
  • the first accommodating cavity 8441 itself forms a guide for guiding the movement of the first carrier 844 groove. That is, in this modified embodiment, the first accommodating cavity 8441 not only provides an installation space for the installation of the first driving element 842, but also is formed to guide the first carrier 844 to move (or , regulate the guiding structure of the movement of the first driving element 842). Likewise, when the second driving element 843 drives the second carrier 845 in the second accommodating cavity 8451 , the second accommodating cavity 8451 itself forms a guide for guiding the movement of the second carrier 845 groove.
  • the second accommodating cavity 8451 not only provides an installation space for the installation of the first driving element 842, but also is formed to guide the movement of the second carrier 845 (or , regulate the guiding structure of the movement of the second driving element 843).
  • the depth dimension of the first accommodating cavity 8441 is equal to the height dimension of the first driving element 842, and/or the depth dimension of the second accommodating cavity 8451 is the same as the height dimension of the first driving element 842.
  • the heights of the second driving elements 843 are equal, so that the first driving elements 842 can be completely accommodated in the first accommodating cavity 8441, and the second driving elements 843 can be completely accommodated in the first accommodating cavity 8441. into the second receiving cavity 8451.
  • the depth dimension of the first accommodating cavity 8441 may be larger than the height dimension of the first driving element 842 or smaller than the height dimension of the first driving element 842
  • the second The depth dimension of the receiving cavity 8451 may be larger than the height dimension of the second driving element 843 or smaller than the height dimension of the second driving element 843 , which is not limited by the present application.
  • FIG. 22 is a schematic diagram illustrating another variant implementation of the variable-focus camera module according to the embodiment of the present application, wherein, in this variant embodiment, the first driving element 842 and the second driving element 843 has changed again.
  • the first driving element 842 is disposed between the bottom surface of the first carrier 844 and the bottom surface of the driving housing 841
  • the second driving element 843 is It is disposed between the bottom surface of the second carrier 845 and the bottom surface of the driving housing 841 .
  • the first carrier 844 has a third receiving cavity 8442 concavely formed on the bottom surface thereof and extending laterally, and the second carrier 845 has a bottom surface thereof concavely formed and laterally extending The extended fourth accommodating cavity 8452 , wherein the first driving element 842 is arranged in the third accommodating cavity 8442 , and the second driving element 843 is arranged in the fourth accommodating cavity 8452 .
  • the third accommodating cavity 8442 itself forms a guide for guiding the movement of the first carrier 844 groove. That is, in this modified embodiment, the third accommodating cavity 8442 not only provides an installation space for the installation of the first driving element 842, but also is formed to guide the first carrier 844 to move (or , which regulates the movement of the first driving element 842 ). Likewise, when the second driving element 843 drives the second carrier 845 in the fourth accommodating cavity 8452 , the fourth accommodating cavity 8452 itself forms a guide for guiding the movement of the second carrier 845 groove.
  • the fourth receiving cavity 8452 not only provides an installation space for the installation of the first driving element 842, but also is formed to guide the movement of the second carrier 845 (or , which regulates the movement of the second driving element 843 ).
  • the depth dimension of the third accommodating cavity 8442 is equal to the height dimension of the first driving element 842, and/or the depth dimension of the fourth accommodating cavity 8452 is the same as the depth dimension of the first driving element 842.
  • the height dimensions of the two driving elements 843 are equal. In this way, the first driving element 842 can be completely accommodated in the third accommodating space, and/or the second driving element 843 can be completely accommodated in the fourth accommodating space.
  • the depth dimension of the third accommodating cavity 8442 and the fourth accommodating cavity 8452 and the height dimension of the first driving element 842 and the second driving element 843 can also be determined by It is configured in other relationships, for example, the depth dimension of the third accommodating cavity 8442 and the fourth accommodating cavity 8452 is greater than the height dimension of the first driving element 842 and the second driving element 843, etc. For this, and Not limited by this application.
  • the structural configurations of the first pre-compression member 850 and the second pre-compression portion 860 are also adjusted.
  • the first pre-pressing member 850 includes a first magnetic element 852 disposed on the bottom surface of the first carrier 844 and a first magnetic element 852 disposed on the driving housing 841
  • the bottom surface of the second magnetic attraction element 853 corresponding to the first magnetic attraction element 852 to provide the magnetic force between the first magnetic attraction element 852 and the second magnetic attraction element 853
  • the first magnetic element 852 and the second magnetic element 853 refer to magnetic components that can attract each other.
  • the first magnetic element 852 can be implemented as a magnet
  • the second magnetic attraction element 853 may be implemented as a magnetic component, for example, a material made of iron, nickel, cobalt and other metals; for another example, the first magnetic attraction element 852 may be implemented as a magnet, and the second magnetic attraction element 852 may be implemented as a magnet
  • the magnetic attraction element 853 may also be implemented as a magnet.
  • the second pre-compression member 860 includes a third magnetic element 862 disposed on the second carrier 845 and a third magnetic element 862 disposed on the driving housing 841 and corresponding to the third magnetic element
  • the fourth magnetic attraction element 863 of the attraction element 862 provides the friction driving part 8120 and The prestress between the second friction actuating parts 8132 and the second friction actuating part 8132 are forced against the bottom surface of the second carrier 845 .
  • the third magnetic element 862 and the fourth magnetic element 863 refer to magnetic components capable of attracting each other.
  • the third magnetic element 862 may be implemented as a magnet, so
  • the fourth magnetic attraction element 863 can be implemented as a magnetic component, for example, a material made of iron, nickel, cobalt and other metals; for another example, the third magnetic attraction element 862 can be implemented as a magnet, and the fourth magnetic attraction element 862
  • the magnetic attraction element 863 may also be implemented as a magnet.
  • variable-focus camera module based on the embodiments of the present application is clarified, wherein the variable-focus camera module adopts the piezoelectric actuator 8100 as a driver so as not only to provide a sufficiently large driving force, but also to The driving performance with higher precision and longer stroke is provided to meet the zoom requirements of the variable-focus camera module.
  • the piezoelectric actuator 8100 has a relatively small size, so as to better adapt to the development trend of lightening and thinning of the camera module.
  • the variable-focus camera module adopts a reasonable layout scheme to arrange the piezoelectric actuator 8100 in the variable-focus camera module, so as to meet the structure and size requirements of the variable-focus camera module.
  • FIG. 24 illustrates a schematic diagram of a variable-focus camera module according to an embodiment of the present application.
  • the variable-focus camera module according to the embodiment of the present application is implemented as a periscope camera module, which includes: a light turning element 910 , a zoom lens group 920 , a photosensitive component 930 and a driving component 940 .
  • the light turning element 910 is used to receive the imaging light from the subject, and turn the imaging light to the zoom lens group 920 .
  • the light turning element 910 is configured to turn the imaging light from the photographed object by 90°, so that the overall height dimension of the zoom camera module can be reduced.
  • the angle at which the light turning element 910 turns the imaging light may have an error within 1°, which should be understood by those of ordinary skill in the art.
  • the light-reflecting element 910 may be implemented as a mirror (eg, a flat mirror), or a light-reflecting prism (eg, a triangular prism).
  • a mirror eg, a flat mirror
  • a light-reflecting prism eg, a triangular prism
  • the light turning element 910 is implemented as a light turning prism
  • the light incident surface of the light turning prism and its light exit face are perpendicular to each other
  • the light reflecting surface of the light turning prism is perpendicular to the light incident face and the light turning face.
  • the light exit surface is inclined at an angle of 945°, so that when the imaging light enters the light turning prism in a manner perpendicular to the light incident surface, the imaging light can be turned 90° at the light reflecting surface, so that output from the light exit surface in a manner perpendicular to the light exit surface.
  • the light deflection element 910 may also be implemented as other types of optical elements, which are not limited by the present application.
  • the variable-focus camera module may further include a larger number of light-reflecting elements 910, one of the reasons is that: one function of introducing the light-reflecting elements 910 is to bend the imaging light , so that the optical system of the zoom camera module with a longer total optical length (TTL: Total Track Length) can be folded in the structural dimension.
  • TTL Total Track Length
  • a larger number of light turning elements 910 can be provided to meet the size requirements of the zoom camera module.
  • the The light deflection element 910 is located on the image side of the variable-focus camera module or between any two lenses in the zoom lens group 920 .
  • the zoom lens group 920 corresponds to the light refraction element 910 , and is used for receiving the imaging light from the light refraction element 910 and condensing the imaging light .
  • the zoom lens group 920 includes a fixed part 921 , a zoom part 922 and a focus part 923 along its set optical axis direction, wherein the zoom part 922 and the focus part 923
  • the focusing portion 923 can be adjusted relative to the position of the fixed portion 921 under the action of the driving assembly 940, so as to realize the adjustment of the optical performance of the zoom camera module, including but not limited to optical focusing and optical zooming Function.
  • the zooming part 922 and the focusing part 923 can be adjusted by the driving assembly 940, so that the focal length of the zoom lens group 920 of the variable-focusing camera module can be adjusted, so as to clearly capture images of different distances. subject.
  • the fixing portion 921 includes a first lens barrel and at least one optical lens accommodated in the first lens barrel.
  • the fixed part 921 is adapted to be fixed to the non-moving part of the driving assembly 940 , so that the position of the fixed part 921 in the zoom lens group 920 remains constant.
  • the fixing portion 921 may not be provided with the first lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that fit with each other. lens. That is, in other examples of the application, the fixed portion 921 may be implemented as a "bare lens".
  • the zoom portion 922 includes a second lens barrel and at least one optical lens accommodated in the second lens barrel, wherein the zoom portion 922 is suitable for being used by the second lens barrel.
  • the driving component 940 is driven to move along the optical axis direction set by the zoom lens group 920, so as to realize the optical zoom function of the zoom camera module, so that the zoom camera module can realize Clear shots of subjects at different distances.
  • the zoom portion 922 may not be provided with the second lens barrel, but only includes at least one optical lens, for example, it only includes a plurality of optical pieces fitted with each other lens. That is, in other examples of the application, the zoom portion 922 may also be implemented as a "bare lens".
  • the focusing portion 923 includes a third lens barrel and at least one optical lens accommodated in the third lens barrel, wherein the focusing portion 923 is suitable for being used by the third lens barrel.
  • the driving component 940 is driven to move along the optical axis direction set by the zoom lens group 920, so as to realize the focusing function of the zoom camera module. More specifically, the optical focusing achieved by driving the focusing portion 923 can compensate for the focus shift caused by moving the zooming portion 922, thereby compensating the imaging performance of the zoom camera module, so that the imaging quality thereof satisfies the requirements. Default requirements.
  • the focusing portion 923 may not be provided with the third lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that fit with each other. lens. That is, in other examples of the application, the focusing portion 923 may also be implemented as a "bare lens".
  • the fixed part 921 , the zoom part 922 and the focus part 923 of the zoom lens group 920 are arranged in sequence (that is, In the zoom lens group 920, the zoom portion 922 is located between the fixed portion 921 and the focus portion 923), that is, the imaging light from the light-refraction element 910 passes through the zoom lens group 920, it will pass through the fixed part 921, then through the zoom part 922, and then through the focusing part 923 in sequence.
  • the relative positional relationship between the fixed part 921 , the zooming part 922 and the focusing part 923 can also be adjusted.
  • Part 922 and the focusing part 923 for another example, the focusing part 923 is arranged between the zooming part 922 and the fixing part 921 .
  • the relative positional relationship between the fixed part 921 , the zoom part 922 and the focus part 923 can be designed according to the optical design requirements and structural design of the zoom camera module adjustment is required.
  • the focusing portion 923 and the zooming portion 922 are disposed adjacent to each other. That is, the position of each part in the zoom lens group 920 according to the embodiment of the present application is preferably configured such that the zoom part 922 is located between the fixed part 921 and the focusing part 923, or, all the The focusing portion 923 is located between the fixing portion 921 and the zooming portion 922 .
  • the zooming part 922 and the focusing part 923 are parts of the zoom lens group 920 that need to be moved, therefore, the focusing part 923 and the zooming part 922 are arranged adjacent to each other, such a position
  • the setting facilitates the arrangement of the drive assembly 940 , which will be expanded in the detailed description of the drive assembly 940 .
  • the zoom lens group 920 includes one of the fixed parts 921 , one of the zoom parts 922 and one of the focus parts 923 as an example,
  • the specific number of the fixed portion 921 , the zoom portion 922 and the focusing portion 923 is not limited by the present application, and can be selected according to The optical design requirements of the variable-focus camera module are adjusted.
  • variable-focus camera module further includes a light blocking element (not shown in the figure) disposed on the photosensitive path of the photosensitive assembly 930 Schematic), wherein the light blocking element can at least partially block the projection of imaging light, so as to reduce the influence of stray light on the imaging quality of the variable-focus camera module as much as possible.
  • a light blocking element (not shown in the figure) disposed on the photosensitive path of the photosensitive assembly 930 Schematic), wherein the light blocking element can at least partially block the projection of imaging light, so as to reduce the influence of stray light on the imaging quality of the variable-focus camera module as much as possible.
  • the photosensitive component 930 corresponds to the zoom lens group 920 and is used to receive the imaging light from the zoom lens group 920 and perform imaging, wherein the photosensitive component 930 includes a circuit board 931 , a photosensitive chip 932 electrically connected to the circuit board 931 , and a filter element 933 held on the photosensitive path of the photosensitive chip 932 . More specifically, in the example shown in FIG. 25 , the photosensitive assembly 930 further includes a bracket 934 disposed on the circuit board 931 , wherein the filter element 933 is mounted on the bracket 934 to are held on the photosensitive path of the photosensitive chip 932 .
  • the specific implementation of the filter element 933 held on the photosensitive path of the photosensitive chip 932 is not limited by the present application, for example, the filter element 933 can be implemented as a filter film and coated on the surface of a certain optical lens of the zoom lens group 920 to have a filtering effect.
  • the photosensitive component 930 can further include a film mounted on the bracket. A filter element holder (not shown), wherein the filter element 933 is held on the photosensitive path of the photosensitive chip 932 by being mounted on the filter element holder.
  • the new technical requirements mainly focus on two aspects: relatively larger driving force, and better driving performance (specifically including: higher-precision driving control and longer driving stroke). Moreover, in addition to finding a driver that meets the requirements of the new technology, it is also necessary to consider whether the selected driver can adapt to the current development trend of lightening and thinning of the camera module when selecting a new driver.
  • the inventor of the present application proposes a piezoelectric actuator with a novel structure, which can meet the technical requirements of the variable-focus camera module for the driver. Furthermore, the piezoelectric actuator is further arranged in the variable-focus camera module in an appropriate arrangement manner, so that it meets the structural design requirements and size design requirements of the variable-focus camera module.
  • the driving assembly 940 for driving the zoom lens group 920 includes: a driving housing 941 , a first driving element 942 , a second driving A driving element 943, a first carrier 944 and a second carrier 945, wherein the first driving element 942, the second driving element 943, the first carrier 944 and the second carrier 945 are accommodated in the driving housing
  • the variable-focus camera module has a relatively more compact structural arrangement.
  • the first driving element 942 and the second driving element 943 are implemented as piezoelectric actuators 9100, and the zoom portion 922 is mounted on the first carrier 944, so The focusing portion 923 is mounted to the second carrier 945, wherein the first drive element 942 is frictionally coupled to the first carrier 944 and configured to flexibly vibrate in both directions after being driven
  • the first carrier 944 is driven by friction to drive the zoom part 922 to move along the direction set by the optical axis
  • the The second driving element 943 is frictionally coupled to the second carrier 945 and is configured to move in a two-dimensional trajectory along the direction set by the optical axis in a manner of bending vibration in two directions after being driven , thereby driving the second carrier 945 through friction to drive the focusing portion 923 to move along the direction set by the optical axis.
  • the piezoelectric actuator 9100 is used as a driver for driving the zoom portion 922 and the focus portion 923 in the zoom lens group.
  • the piezoelectric actuator 9100 according to an embodiment of the present application includes an actuation system 9110 and a drive circuit system 9120 , wherein the actuation system 9110 controls the drive circuit system 9120
  • the lower part moves in a two-dimensional trajectory along a preset direction in the manner of bending vibration in two directions.
  • the piezoelectric actuator 9100 is a high-efficiency semi-resonant drive system.
  • the actuation system 9110 of the piezoelectric actuator 9100 After being turned on, the actuation system 9110 of the piezoelectric actuator 9100 operates along two It moves in a two-dimensional trajectory along a preset direction in the manner of bending vibration in one direction, so as to frictionally couple and move the acted object along the preset direction.
  • the actuating system 9110 includes a piezoelectric plate structure 9111 and a friction driving portion 9112 fixed to the piezoelectric plate structure 9111 .
  • the piezoelectric plate structure 9111 may be symmetrical or asymmetrical.
  • the piezoelectric plate structure 9111 has a first side surface extending along its depth direction and a second side surface extending along its height direction and adjacent to the first side surface, wherein the piezoelectric plate
  • the structure 9111 has a first resonance frequency along its depth direction (eg, D as illustrated in FIG. 27A ) and a second resonance frequency along its height direction (eg, H as illustrated in FIG. 27A ).
  • the height dimension of the piezoelectric plate structure 9111 is greater than the depth dimension thereof, that is, the second resonance frequency is greater than the first resonance frequency.
  • the piezoelectric plate structure 9111 includes at least one piezoelectric layer formed together.
  • the thickness of the piezoelectric plate structure 9111 ranges from 5um to 40um.
  • the at least one piezoelectric layer structure may be a single piezoelectric layer, or may include a plurality of piezoelectric layers stacked together (for example, a plurality of piezoelectric layers that are co-fired together). parallel piezoelectric layers).
  • multiple piezoelectric layers can achieve similar effects under the premise of applying a smaller voltage.
  • the piezoelectric plate structure 9111 includes a first piezoelectric region 91111, a second piezoelectric region 91112 and a third piezoelectric region 91113 formed on the second side surface, and a fourth piezoelectric region 91114 formed on the first side surface, wherein the second piezoelectric region 91112 is located between the first piezoelectric region 91111 and the third piezoelectric region 91113, and all the The fourth piezoelectric region 91114 is adjacent to the second piezoelectric region 91112 .
  • the piezoelectric plate structure 9111 further includes a first electrode pair 91115 electrically connected to the first piezoelectric region 91111, a second electrode pair 91116 electrically connected to the second piezoelectric region 91112, and a second electrode pair 91116 electrically connected to the second piezoelectric region 91112.
  • the third electrode pair 91117 of the third piezoelectric region 91113 is electrically connected to the fourth electrode pair 91118 of the fourth piezoelectric region 91114 . That is, in the example illustrated in FIG. 24 , the piezoelectric plate structure 9111 includes four piezoelectric regions and four electrode pairs electrically connected to the four piezoelectric regions, respectively.
  • the piezoelectric plate structure 9111 may include other numbers of piezoelectric regions and electrode pairs, which are not limited by the present application.
  • one of the first piezoelectric region 91111 and the third piezoelectric region 91113, and/or the second piezoelectric region 91112 and the One of the fourth piezoelectric regions 91114 can be passive, which can reduce the drive amplitude, but not change the operation of the actuation system 9110.
  • the first piezoelectric region 91111, the second piezoelectric region 91112, the third piezoelectric region 91113 and the fourth piezoelectric region 91114 have the The polarities produced by the neutralization, thus forming the positive and negative electrodes.
  • the first piezoelectric region 91111 is polarized during fabrication such that one electrode of the first electrode pair 91115 corresponding to the first piezoelectric region 91111 forms a negative electrode (eg, as illustrated in FIG. 27A ) A-), the other electrode forms the positive electrode (eg, A+ as illustrated in FIG.
  • the third piezoelectric region 91113 is polarized during manufacture so as to correspond to the third piezoelectric region 91113 In the third electrode pair 91117 of , one electrode forms a negative electrode (eg, B- as illustrated in FIG. 27A ), and the other electrode forms a positive electrode (eg, B+ as illustrated in FIG. 27A ); the second piezoelectric region 91112 is polarized during manufacture such that one electrode of the second electrode pair 91116 corresponding to the second piezoelectric region 91112 forms the negative electrode (eg, C- as illustrated in Figure 27A) and the other electrode forms the positive electrode (eg, C+ as illustrated in FIG.
  • each electrode of the first electrode pair 91115 and/or the second electrode pair 91116 and/or the third electrode pair 91117 and/or the second electrode pair 91116 has "L" type.
  • one electrode in the first electrode pair 91115 is coupled and cross-connected with one inner electrode of each piezoelectric layer of the first piezoelectric region 91111, so The other electrode of the first electrode pair 91115 is alternately connected to the inner electrode of the first piezoelectric region 91111 opposite to each piezoelectric layer, wherein the first electrode pair 91115 is staggered during the polarization process.
  • One electrode was identified as the positive electrode and the other electrode was identified as the negative electrode.
  • One electrode of the second electrode pair 91116 is coupled and cross-connected to one internal electrode of each piezoelectric layer of the second piezoelectric region 91112, and the other electrode of the second electrode pair 91116 is cross-connected to The inner electrodes of the second piezoelectric region 91112 opposite to each piezoelectric layer, wherein one electrode of the second electrode pair 91116 is determined as a positive electrode and the other electrode is determined as a negative electrode during the polarization process.
  • One electrode of the third electrode pair 91117 is coupled and cross-connected to one internal electrode of each piezoelectric layer of the third piezoelectric region 91113, and the other electrode of the third electrode pair 91117 is cross-connected to The inner electrodes of the third piezoelectric region 91113 opposite to each piezoelectric layer, wherein one electrode of the third electrode pair 91117 is determined as a positive electrode and the other electrode is determined as a negative electrode during the polarization process.
  • One electrode of the third electrode pair 91117 is coupled and cross-connected to one internal electrode of each piezoelectric layer of the third piezoelectric region 91113, and the other electrode of the third electrode pair 91117 is cross-connected to The inner electrodes of the third piezoelectric region 91113 opposite to each piezoelectric layer, wherein one electrode of the third electrode pair 91117 is determined as a positive electrode and the other electrode is determined as a negative electrode during the polarization process.
  • the driving circuit system 9120 includes a first driving circuit 9121 and a second driving circuit 9122, the first driving circuit 9121 is electrically connected to the first electrode pair 91115 and the The third electrode pair 91117, the second driving circuit 9122 is electrically connected to the second electrode pair 91116 and the fourth electrode pair 91118, wherein the first driving circuit 9121 and the second driving circuit 9122 can be It is a full-bridge drive circuit, or other drive circuits.
  • the driving circuit system 9120 has 94 kinds of output circuit vibration signals: 124(1)-124(4), wherein the output circuit vibration signals can be as shown in FIG. 27C
  • the ultrasonic square wave vibration signal can also be other signals, for example, a sinusoidal signal.
  • the piezoelectric plate structure 9111 has two bending modes: mode 1 and mode 2, wherein mode 1 and mode 2 each have different resonance frequencies.
  • the vibration amplitude of the bending mode of the piezoelectric plate structure 9111 depends on the vibration frequency of the output circuit vibration signal. Specifically, when the driving circuit system 9120 applies a circuit vibration signal to the piezoelectric plate structure 9111 at the resonance frequency for one of the two bending modes (eg, the resonance frequency of Mode 1), for the piezoelectric plate structure 9111
  • the vibrational amplitudes of the flexural modes operating at the resonant frequency are fully amplified, and are only partially amplified for the other flexural modes operating at partial resonance.
  • the piezoelectric plate structure 9111 when the vibration frequency of the circuit vibration signal output by the first drive circuit 9121 is the first resonance frequency, the piezoelectric plate structure 9111 resonates in its height direction and partially resonates in its depth direction. , so that the piezoelectric plate structure 9111 moves in a two-dimensional trajectory along a preset direction by bending and vibrating in two directions; wherein, when the vibration frequency of the circuit vibration signal input by the second drive circuit 9122 is When it is the second resonance frequency, the piezoelectric plate structure 9111 resonates in its depth direction and partially resonates in its height direction, so that the piezoelectric plate structure 9111 bends and vibrates in two directions. It moves in a two-dimensional trajectory along a preset direction.
  • each of the four vibration signals has a vibration frequency, and the vibration frequency is substantially equal to any one of the two bending modes of the piezoelectric plate structure 9111
  • the resonance frequency, ie the vibration frequency is substantially equal to the first resonance frequency or the second resonance frequency.
  • the circuit vibration signals from outputs 124(1)-124(2) are phase-shifted by the drive circuitry 9120 relative to the circuit vibration signals from outputs 124(3)-124(4) by about 0 degrees to 90 degrees, to move in one of two directions.
  • FIGS. 27D-27F illustrate schematic diagrams of the piezoelectric actuator 9100 moving in a first mode according to an embodiment of the present application.
  • this bending mode is due to the application of circuit vibration signals from outputs 124(1)-124(2) of different stages to the first piezoelectric region 91111 and the first piezoelectric region 91111 having opposite polarities
  • the third piezoelectric region 91113 is generated.
  • FIG. 27D shows the situation when the piezoelectric plate structure 9111 is at rest.
  • 27G-27I illustrate schematic diagrams of the piezoelectric actuator 9100 moving in a second mode according to an embodiment of the present application.
  • this bending mode is due to the application of vibration signals from outputs 124(3)-124(4) of different stages to the second piezoelectric region 91112 and the first piezoelectric region 91112 having opposite polarities
  • Four piezoelectric regions 91114 are produced.
  • FIG. 27G shows the situation when the piezoelectric plate structure 9111 is at rest.
  • the voltage difference between outputs 124(3) and 124(4) is positive, the length of the second piezoelectric region 91112 decreases and the length of the fourth piezoelectric region 91114 increases, so that the piezoelectric
  • the plate structure 9111 is bent as shown in Figure 27H.
  • the voltage difference between outputs 124(3) and 124(4) is negative, the length of the second piezoelectric region 91112 increases and the length of the fourth piezoelectric region 91114 decreases, so that the voltage The electric plate structure is bent as shown in Figure 27I.
  • the actuation system 9110 forms an elliptical orbit-like two-dimensional trajectory, that is, the drive circuit system 9120
  • the rotation direction of the actuating system 9110 on the elliptical orbital path can be controlled according to the phase difference value, so that the actuating system 9110 can drive the acted object at a relatively smaller and more precise step speed.
  • FIG. 27J illustrates another schematic diagram of the piezoelectric plate structure 9111 of the piezoelectric actuator 9100 according to an embodiment of the present application.
  • the actuating system 9110 further includes a friction driving part 9112 fixed to the piezoelectric plate structure 9111 , wherein the friction driving part 9112 is adapted to be frictionally coupled on the acted object to drive the acted object to move along a predetermined direction through friction.
  • the friction driving part 9112 is adapted to be frictionally coupled to the acted object, as shown in FIG.
  • the piezoelectric actuator 9100 is usually equipped with a pre-pressure device, the pre-pressure device A pre-pressure between the piezoelectric actuator 9100 and the acted object is provided, so that the friction driving part 9112 of the piezoelectric actuator 9100 can be frictionally coupled to the acted object to friction to drive the acted object to move in a predetermined direction, as shown in Figure 27L.
  • the friction driving part 9112 includes at least one contact pad, which can be fixed to the piezoelectric plate structure 9111 along the depth direction, or can be fixed to the piezoelectric plate along the height direction Structure 9111.
  • the at least one contact pad may have a hemispherical shape, of course, other shapes, such as a semi-cylindrical shape, a stage body, a rectangle, etc. are also possible.
  • the at least one contact pad is made of materials with better friction performance and durability, for example, metal oxide materials (eg, zirconia, alumina, etc.).
  • the piezoelectric actuator 9100 has the advantages of small size, large thrust, and high precision. Quantitatively, the piezoelectric actuator 9100 according to the embodiment of the present application can provide a driving force of 0.96N to 2N, which is sufficient to drive a component with a weight greater than 100 mg.
  • the piezoelectric actuator 9100 has other advantages compared to traditional electromagnetic motor solutions and memory alloy motor solutions, including but not limited to: relatively small size (with Slender shape), better response accuracy, relatively simpler structure, relatively simpler drive control, high product consistency, no electromagnetic interference, relatively larger stroke, short stabilization time, relatively small weight, etc.
  • variable-focus camera module requires the driver configured with the variable-focus camera module to have a long driving stroke and to ensure better alignment accuracy.
  • additional guide rods or ball guides need to be designed, and large-sized driving magnets/coils need to be adapted to the side of the lens, and balls, shrapnel, and suspension wires need to be installed.
  • Other auxiliary positioning devices in order to accommodate more components, ensure structural strength and reserve structural gaps, often lead to large lateral dimensions of the module, complex structural design, and heavy module weight.
  • the memory alloy motor solution is limited by the relatively small stroke that the memory alloy solution can provide in the same proportion, and there are reliability risks such as potential disconnection.
  • the piezoelectric actuator 9100 has a relatively simple structure, and the assembly structure is simpler. In addition, the size of its components is basically independent of the movement stroke of the piezoelectric actuator 9100. Therefore, it is described in optical zoom products.
  • the piezoelectric actuator 9100 can achieve the advantages of large thrust, small size, and low weight. At the same time, it can be designed to match the larger stroke or heavier device weight, and the integration in the design is also higher.
  • the piezoelectric actuator 9100 pushes the object to be pushed to perform micron-scale motion in a frictional contact manner.
  • driving the object to be pushed in a non-contact manner needs to rely on electromagnetic force to counteract gravity, and the frictional force It has the advantages of greater thrust, greater displacement and lower power consumption, and at the same time, the control accuracy is higher, and high-precision continuous zoom can be achieved.
  • the piezoelectric actuator 9100 does not have a magnet coil structure, so there is no problem of magnetic interference.
  • the piezoelectric actuator 9100 can be self-locked by the friction force between the components, so the abnormal shaking noise of the zoom camera module during optical zooming can be reduced.
  • the piezoelectric actuator 9100 After selecting the piezoelectric actuator 9100 as the first driving element 942 and the second driving element 943, the piezoelectric actuator 9100 needs to be arranged in the variable-focus camera in a reasonable manner In the module, more specifically, in this embodiment, the piezoelectric actuator 9100 needs to be arranged in the drive housing 941 in a reasonable manner to meet the optical performance of the variable-focus camera module Adjustment requirements, structural design requirements and size design requirements.
  • the driving assembly 940 further includes a first pre-compression part 950 and a second pre-compression part 960, wherein the first driving element 942 passes through the
  • the first pre-compression member 950 is frictionally coupled to the first carrier 944 and is configured to move in a two-dimensional trajectory along the direction set by the optical axis in a manner of bending vibration in two directions after being driven, In this way, the first carrier 944 is driven by friction to drive the zoom portion 922 to move along the direction set by the optical axis.
  • the second drive element 945 is frictionally coupled to the second carrier 945 through the second pre-compression portion 960 and is configured to, after being driven, bend along the optical axis in a manner of bending vibration in both directions
  • the set direction moves in a two-dimensional trajectory, so that the second carrier 945 is driven by friction to drive the focusing portion 923 to move along the set direction of the optical axis.
  • the first driving element 942 is frictionally coupled to the first carrier 944, including: the first driving element 942 has a direct frictional action with the first carrier 944, and the first driving element 942 Indirect friction with the first carrier 944 (that is, although there is no direct friction between the first driving element 942 and the first carrier 944, the friction generated by the first driving element 942 The friction driving force can act on the first carrier 944).
  • the second drive element 943 is frictionally coupled between the second carrier 945 and the drive housing 941 , including: the second drive element 943 rubs directly against the second carrier 945 action, and indirect frictional action between the second drive element 943 and the second carrier 945 (ie, although there is no direct frictional force between the second drive element 943 and the second carrier 945, However, the frictional driving force generated by the second driving element 944 can act on the second carrier 945).
  • the driving assembly 940 further includes a first friction actuating part 9131 , wherein , the first friction actuating portion 9131 is sandwiched between the friction driving portion 9112 of the first driving element 942 and the first carrier 944, so as to pass the first friction actuating portion 9131 and
  • the first pre-compression member 950 and the first drive element 942 are frictionally coupled to the first carrier 944 .
  • the friction driving portion 9112 of the first driving element 942 abuts against the first friction actuating portion 9131 , and in all Under the action of the friction driving part 9112, the first friction actuating part 9131 abuts against the first carrier 944, and in this way, the first driving element 942 is frictionally coupled to the first carrier 944, After being driven, the first carrier 944 is driven by friction to drive the zoom portion 922 along the direction set by the optical axis in a two-dimensional trajectory in the manner of bending and vibrating in two directions. move in the direction set by the optical axis.
  • the driving assembly 940 further includes a second friction actuating portion 9132 , and the second friction actuating portion 9132 is clamped and disposed on the second driving element 943 . between the friction driving part 9112 and the second carrier 945, so that the second driving element 943 is frictionally coupled to the first pressing part 960 and the second friction actuating part 9132 Two vector 945. Specifically, as shown in FIG.
  • the friction driving portion 9112 of the second driving element 943 abuts against the second friction actuating portion 9132 , and in all Under the action of the friction driving part 9112, the second friction actuating part 9132 abuts against the second carrier 945, and in this way, the second driving element 943 is frictionally coupled to the second carrier 945, After being driven, the second carrier 945 is driven by friction to drive the zoom portion 923 along the direction set by the optical axis in a two-dimensional trajectory in a manner of bending and vibrating in two directions. move in the direction set by the optical axis.
  • the first friction actuating portion 9131 has a first surface and a second surface opposite to the first surface, wherein in the first pre- Under the action of the pressing member 950, the first surface of the first friction actuating part 9131 is in contact with the surface of the first carrier 944, and the second surface thereof is in contact with the friction driving part 9112. In this way, all the The first drive element 942 is frictionally coupled to the first carrier 944 .
  • the second friction actuating portion 9132 has a third surface and a fourth surface opposite to the third surface, wherein, under the action of the second pre-compression member 960, the second friction actuating The third surface of the moving part 9132 abuts against the surface of the second carrier 945, and the fourth surface abuts against the friction driving part 9112, in this way, the second driving element 943 is frictionally coupled to the The second carrier 945 is described.
  • the first friction actuating portion 9131 and the second friction actuating portion 9132 are respectively provided as a separate component in the first drive Between the element 942 and the first carrier 944, and between the second drive element 943 and the second carrier 945, for example, the first friction actuating portion 9131 is implemented as a separate part and is attached to the side surface of the first carrier 942, or, the second friction actuating portion 9132 is implemented as a separate component and is attached to the side surface of the second carrier 945, and for example, the The first friction actuating portion 9131 is implemented as a layer of coating applied to the side surface of the first carrier 942, or the second friction actuating portion 9132 is implemented as a layer coated on the side surface of the first carrier 942.
  • the first friction actuating portion 9131 may also be integrally formed on the surface of the outer side wall of the first carrier 942 , that is, the first friction actuating portion 9131 and the The first carrier 942 has a one-piece structure.
  • the second friction actuating portion 9132 may also be integrally formed on the surface of the outer side wall of the second carrier 945 , that is, the second friction actuating portion 9132 and the first The two carriers 945 have a one-piece structure.
  • the first pre-compression member 950 includes a first elastic element 951 , and the first elastic element 951 is arranged on the piezoelectric plate structure of the first driving element 942 . 9111 and the driving housing 941 to provide a pre-pressure between the friction driving part 9112 of the first driving element 942 and the first friction actuating part 9131 through the elastic force of the first elastic element 951 And through the first elastic element 951 , the first friction actuating portion 9131 abuts against the surface of the first carrier 944 .
  • the first driving element 942 is clamped and disposed between the driving housing 941 and the first carrier 944, that is, the first driving element 942 is clamped
  • the friction driving portion 9112 of the driving element 942 abuts against the first friction actuating portion 9131 and the first friction actuating portion 9131 abuts against the side surface of the first carrier 944, in this way, the first friction actuating portion 9131
  • the drive element 942 is frictionally coupled to the first carrier 944 .
  • the first elastic element 951 is implemented as an elastic adhesive, that is, the first elastic element 951 is implemented as a glue with elasticity after curing.
  • a layer of adhesive with a thickness of 10um to 50um can be applied between the surface of the inner side wall of the drive housing 941 and the piezoelectric plate structure 9111 of the first drive element 942 to After the adhesive is cured and formed, the first elastic element 951 disposed between the piezoelectric plate structure 9111 of the first driving element 942 and the driving housing 941 is formed. That is, while the first elastic element 951 provides the pre-pressure, the first driving element 942 can also be fixed on the surface of the inner side wall of the driving housing 941 .
  • the first elastic element 951 has relatively high flatness, that is, when the adhesive is applied, it is ensured that the applied adhesive has relatively high flatness and uniformity as much as possible, so that the The first driving element 942 can be flatly fixed to the surface of the inner side wall of the driving housing 941 , thereby improving the driving stability of the first driving element 942 .
  • the second pre-compression member 960 includes a second elastic element 961 , and the second elastic element 961 is arranged on the piezoelectric plate structure of the second driving element 943 . 9111 and the driving housing 941 to provide a pre-pressure between the friction driving part 9112 of the second driving element 943 and the second friction actuating part 9132 through the elastic force of the second elastic element 961 And through the second elastic element 961 , the second friction actuating portion 9132 abuts against the surface of the second carrier 945 .
  • the second driving element 943 is clamped and disposed between the driving housing 941 and the second carrier 945 by the elastic force of the second elastic element 961, that is, the second The friction driving part 9112 of the driving element 943 abuts against the second friction actuating part 9132 and the second friction actuating part 9132 abuts against the surface of the second carrier 945. In this way, the second driving The element is frictionally coupled to the second carrier.
  • the second elastic element 961 is implemented as an elastic adhesive, that is, the second elastic element 961 is implemented as a glue with elasticity after curing.
  • a layer of adhesive with a thickness of 10um to 50um can be applied between the surface of the inner side wall of the drive housing 941 and the piezoelectric plate structure 9111 of the second drive element 943 to After the adhesive is cured and formed, the second elastic element 961 disposed between the piezoelectric plate structure 9111 of the second driving element 943 and the driving housing 941 is formed. That is, while the second elastic element 961 provides pre-pressure, the second driving element 943 can also be fixed on the surface of the inner side wall of the driving housing 941 .
  • the second elastic element 961 has a relatively high flatness, that is, when the adhesive is applied, it is ensured that the applied adhesive has a relatively high flatness and uniformity as much as possible, so that the The second driving element 943 can be flatly fixed on the surface of the inner side wall of the driving housing 941 , thereby improving the driving stability of the second driving element 943 .
  • the first elastic element 951 and the second elastic element 961 can also be implemented as elastic elements without viscosity, for example, the material itself has elasticity rubber, or springs, leaf springs, etc. that generate elasticity due to deformation, which are also not limited by this application.
  • the first driving element 942 and the second driving element 943 are selected to be disposed on the first side of the zoom lens group 920 at the same time. That is, the first driving element 942 and the second driving element 943 are selected to be disposed on the same side of the zoom lens group 920, so that the The arrangement in the drive housing 941 is more compact, and the longitudinal space of the drive housing 941 occupied is smaller.
  • the longitudinal space of the driving housing 941 refers to the space occupied by the driving housing 941 in the length direction thereof, and correspondingly, the lateral space of the driving housing 941 refers to the driving housing The space occupied by 941 in its width direction, and the height space of the drive housing 941 refers to the space occupied by the drive housing 941 in its height direction.
  • the zooming portion 922 is driven by the first driving element 942 and the zooming portion 922 is driven by the zoom lens group 920.
  • the second driving element 943 drives the focusing portion 923, the relative positional relationship error (especially the relative inclination relationship) between the zoom portion 922 and the focusing portion 923 can be reduced to improve the focusing portion 923
  • the consistency between the zoom portion 922 and the zoom portion 922 reduces the possibility that the image quality of the variable zoom camera module is degraded due to the inclination of the zoom portion 922 and the focus portion 923 .
  • the first driving element 942 and the second driving element 943 are located on the same side of the zoom lens group 920, the first driving element 942 and the second driving element 943 are at the same side of the zoom lens group 920.
  • the first side of the lens group 920 is aligned in the height direction, that is, the first driving element 942 and the second driving element 943 have the same mounting height, so that the focusing portion 923 and the zooming
  • the uniformity of the portion 922 in the height direction set by the drive housing 941 is relatively higher, that is, when the zoom portion 922 is driven by the first drive element 942 and the zoom portion 922 is driven by the second drive element 943
  • the consistency of the zooming part 922 and the focusing part 923 in the height direction set by the driving housing 941 is relatively higher, so as to ensure the image quality.
  • the focusing portion 923 and the zooming portion 922 of the zoom lens group 920 are disposed adjacent to each other.
  • the first driving element 942 and the second driving element 943 can also be arranged adjacent to each other, thereby reducing the overall size of the first driving element 942 and the second driving element 943
  • the size of the longitudinal space occupied by the driving housing 941 is favorable to the development trend of miniaturization of the variable-focus camera module.
  • the driving assembly 940 further includes a guide structure 946 , and the guide structure 946 is configured to guide the focusing portion 923 and the zooming portion 922 to move along the optical axis.
  • the guide structure 946 is disposed on the second side of the zoom lens group 920 opposite to the first side . That is, in the embodiment of the present application, preferably, the first driving element 942 and the second driving element 943 (as the first part) and the guide structure 946 (as the second part) are respectively disposed in In this way, the two opposite sides of the zoom lens group 920 can fully utilize the internal space of the zoom camera module, so as to facilitate the lightening and thinning of the zoom camera module.
  • the first driving element 942 and the second driving element 943 share a guiding structure 946, that is, the first carrier 944 and the first The two carriers 945 share a guiding structure.
  • the relative positional relationship between the first carrier 944 and the second carrier 945 can be stably maintained, and the zoom lens group 920 can be stably maintained.
  • the relative positional relationship between the focusing part 923 and the zooming part 922 is to improve the resolution capability of the zoom lens group 920 .
  • the guide structure 946 includes: a first support portion 9461 and a second support portion 9462 formed on the drive housing 941 at intervals. , and at least one guide rod 9463 built between the first support portion 9461 and the second support portion 9462 and passing through the first carrier 944 and the second carrier 945, the guide rod 9463 and the light
  • the axes are parallel so that the first carrier 944 and the second carrier 945 can be guided to move along the guide rod 9463 parallel to the optical axis.
  • the functions of the first support portion 9461 and the second support portion 9462 are to span the guide rod 9463 .
  • the first support portion 9461 and the second support portion 9462 (eg, the first support portion 9462 ) may be mounted on the bottom surface of the drive housing 941 9461 and the second support part 9462 can be implemented as a support frame), of course, the first support part 9461 and the second support part 9462 can also be integrally formed on the bottom surface of the drive housing 941, This is not limited by this application.
  • first support portion 9461 and the second support portion 9462 may also be implemented as side walls of the drive housing 941 , that is, the drive housing The opposite two side walls of the body 941 form the first support portion 9461 and the second support portion 9462 .
  • guide rod grooves 9464 can be provided on the first support part 9461 and the second support part 9462, and the first carrier 944 and the second carrier A guide rod channel 9465 is formed in the 945 through its two side surfaces, so that the guide rod 9463 can be mounted on the first support portion 9461 and the second support in a manner of being installed in the guide rod groove 9464. part 9462 and pass through the guide rod passages 9465 of the first carrier 944 and the second carrier 945 at the same time. Further, in this specific example, a lubricating medium may be optionally provided in the guide rod channels 9465 of the first carrier 944 and the second carrier 945 to reduce friction.
  • the guide rod 9463 is aligned with the friction driving part 9112 of the first driving element 942 and/or the friction driving part 9112 of the second driving element 943 In this way, the risk of inclination between the focusing part and the zooming part can be reduced, so as to ensure the imaging quality of the variable-focus camera module.
  • FIG. 28 is a schematic diagram illustrating a variant implementation of the guiding structure of the variable-focus camera module according to an embodiment of the present application.
  • the drive assembly 940 further includes a first guide mechanism 947 disposed between the first carrier 944 and the drive housing 941 , and a first guide mechanism 947 disposed between the second carrier 944 and the drive housing 941 .
  • the first guide mechanism 947 includes at least one ball 9401 disposed between the first carrier 944 and the drive housing 941 , and is disposed in the first A receiving groove 9402 between the carrier 944 and the driving housing 941 for receiving the at least one ball 9401 .
  • the first guide mechanism 947 is the ball 9401 guide structure 946 .
  • the second guide mechanism 948 includes at least one ball 9401 arranged between the second carrier 945 and the drive housing 941 , and at least one ball 9401 arranged between the second carrier 945 and the drive housing 941 A receiving groove 9402 for receiving the at least one ball 9401 therebetween. That is, in this example, the second guide mechanism 948 is also the ball 9401 guide structure 946 .
  • the receiving groove 9402 may be formed on the side surface of the first carrier 944 and the surface of the inner side wall of the driving housing 941 , so that the at least one ball 9401 Slide or roll in the receiving groove 9402, and the length direction of the receiving groove 9402 is consistent with the optical axis direction.
  • the receiving groove 9402 may be formed on the side surface of the second carrier 945 and the surface of the inner side wall of the driving housing 941 , so that the at least one ball 9401 is The receiving groove 9402 slides or rolls inside.
  • the configurations of the first guide mechanism 947 and the second guide mechanism 948 are the same, and the accommodating grooves 9402 of the first guide mechanism 947 and the accommodating grooves of the second guide mechanism 948 9402 are on the same line and connected to each other, so that the inclination between the first carrier 944 and the second carrier 945 can be reduced.
  • FIG. 29 is a schematic diagram illustrating another variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application.
  • the first guide mechanism 947 includes: at least one sliding block 9403 disposed between the first carrier 944 and the drive housing 941 , and disposed on the A sliding groove 9404 between the driving housing 941 and the first carrier 944 is suitable for the sliding of the at least one slider 9403 . That is, in this example, the first guide mechanism 947 is a slider and a slide rail structure.
  • the second guide mechanism 948 includes: at least one sliding block 9403 disposed between the second carrier 945 and the drive housing 941 , and at least one slider 9403 disposed between the drive housing 941 and the second
  • the sliding grooves 9404 between the carriers 945 are suitable for the sliding of the at least one slider 9403 . That is, in this example, the second guide mechanism 948 is also a slider and a chute structure.
  • the slider 9403 is formed protrudingly on the side surface of the first carrier 944 , and the sliding groove 9404 is recessed to form a corresponding surface of the inner side wall of the drive housing 941 .
  • the sliding block 9403 is protrudingly formed on the side surface of the second carrier 945 , and the sliding groove 9404 is recessedly formed at a corresponding position on the surface of the inner side wall of the driving housing 941 .
  • the slider 9403 and the chute 9404 between the first carrier 944 and the drive housing 941 are provided with the slider 9403 and the chute 9404 between the second carrier 945 and the drive housing 941
  • the settings are the same, in particular the dimensions of the slider 9403 and the dimensions of the chute 9404.
  • two sliding grooves 9404 corresponding to the first carrier 944 and the second carrier 945 provided on the drive housing 941 are on the same straight line and can be connected to each other, so that the first carrier The inclination of 944 and the second carrier 945 can be further reduced.
  • FIG. 30 is a schematic diagram illustrating another variant implementation of the variable-focus camera module according to an embodiment of the present application, wherein, in this variant embodiment, the first driving element 942 and the second driving element 943 The setting position of .
  • the first driving element 942 is disposed between the bottom surface of the first carrier 944 and the bottom surface of the driving housing 941
  • the second driving element 943 is It is disposed between the bottom surface of the second carrier 945 and the bottom surface of the driving housing 941 .
  • the structural arrangement of the first pre-compression member 950 and the second pre-compression portion 960 is also adjusted.
  • the first pre-pressing member 950 includes a first magnetic element 952 disposed on the bottom surface of the first carrier 944 and a first magnetic element 952 disposed on the driving housing 941
  • the bottom surface of the first magnetic element 952 corresponds to the second magnetic element 953 of the first magnetic element 952 to provide the magnetic force between the first magnetic element 952 and the second magnetic element
  • the first magnetic element 952 and the second magnetic element 953 refer to magnetic components that can attract each other.
  • the first magnetic element 952 can be implemented as a magnet
  • the second magnetic attraction element 953 can be implemented as a magnetic component, for example, a material made of iron, nickel, cobalt and other metals; for another example, the first magnetic attraction element 952 can be implemented as a magnet, and the second magnetic attraction element 952 can be implemented as a magnet.
  • the magnetic attraction element 953 may also be implemented as a magnet.
  • the second pre-compression member 960 includes a third magnetic attraction element 962 disposed on the second carrier 945 and a third magnetic element 962 disposed on the driving housing 941 and corresponding to the third magnetic element
  • the fourth magnetic attracting element 963 of the attracting element 962 is used to provide the friction driving part 9112 and The pre-pressure between the second friction actuating parts 9132 and the second friction actuating part 9132 are forced against the bottom surface of the second carrier 945 .
  • the third magnetic element 962 and the fourth magnetic element 963 refer to magnetic components capable of attracting each other.
  • the third magnetic element 962 can be implemented as a magnet, so
  • the fourth magnetic attraction element 963 may be implemented as a magnetic component, for example, a material made of iron, nickel, cobalt and other metals; for another example, the third magnetic attraction element 962 may be implemented as a magnet, and the fourth magnetic attraction element 962 may be implemented as a magnet
  • the magnetic attraction element 963 may also be implemented as a magnet.
  • FIG. 31 is a schematic diagram illustrating a variant implementation of the variable-focus camera module according to the embodiment of the present application, wherein, in the variant embodiment, the first carrier 944 has a side surface formed concavely and a lateral An extended first groove 9441, the second carrier 945 has a second groove 9451 concavely formed on a side surface thereof and extending laterally, wherein the first friction actuating portion 9131 is provided in the first groove 9441 so that the first friction actuating portion 9131 is more stably disposed between the first driving element 942 and the first carrier 944, and the second friction actuating portion 9132 is Being arranged in the second groove 9451 enables the second friction actuating portion 9132 to be more stably arranged between the second driving element 943 and the second carrier 945 .
  • the depth of the first groove 9441 is approximately equal to the thickness of the first friction actuating portion 9131, and the depth of the second groove 9451 is the same as that of the second groove 9451.
  • the thickness dimension of the friction actuating portion 9132 is approximately equal.
  • the depth of the first groove 9441 may also be greater than the thickness dimension of the first friction actuating portion 9131, and the depth of the second groove 9451 may also be greater than the The thickness dimension of the second friction actuating portion 9132, such that the first groove 9441 forms a guide groove for guiding the first driving element 942, and the second groove 9451 forms a guide groove for guiding the second A guide groove for the movement of the drive element 943 .
  • the first groove 9441 when the depth of the first groove 9441 can also be greater than the thickness dimension of the first friction actuating portion 9131, the first groove 9441 is not only formed to accommodate the first friction actuating portion 9131 A guide groove for guiding the first driving element 942 is also formed; when the depth of the second groove 9451 is greater than the thickness dimension of the second friction actuating portion 9132, the second groove 9451 The groove 9451 not only forms an accommodating groove for accommodating the second friction actuating portion 9132 , but also forms a guide groove for guiding the second driving element 943 .
  • FIG. 32 illustrates a schematic diagram of yet another variant implementation of the variable-focus camera module according to an embodiment of the present application.
  • the first carrier 944 has a first groove 9441 concavely formed on its side surface and extending laterally, and the second carrier 945 has a concavely formed side surface thereof.
  • a second groove 9451 extending laterally on the surface, wherein the first friction actuating portion 9131 is disposed in the first groove 9441 so that the first friction actuating portion 9131 is more stably disposed in the Between the first driving element 942 and the first carrier 944, and the second friction actuating portion 9132 is disposed in the second groove 9451 so that the second friction actuating portion 9132 is more stably disposed between the second driving element 943 and the second carrier 945 .
  • the friction driving portion 9120 of the first driving element 942 is fitted into the first groove 9441, and the friction driving portion 9112 of the second driving element 943 is fitted in the first groove 9441.
  • the first groove 9441 not only forms a receiving groove for accommodating the first friction actuating part 9131, but also forms a receiving groove for guiding the first friction actuating part 9131.
  • a guide groove for the driving element 942 ; the second groove 9451 not only forms an accommodating groove for accommodating the second friction actuating portion 9132 , but also forms a guiding groove for guiding the second driving element 943 .
  • the first groove 9441 has a reduced diameter
  • the second groove 9451 has a reduced diameter. That is, in this modified embodiment, the aperture size of the first groove 9441 is gradually reduced along the width direction of the first carrier 944 toward the direction away from the first driving element 942 , and, therefore, The diameter of the second groove 945 gradually decreases along the width direction of the second carrier 945 toward the direction away from the second driving element 943 .
  • the friction driving parts 9112 of the first driving element 942 and the second driving element 943 may wear.
  • the friction driving portion 9112 of the first driving element 942 will extend further into the first groove 9441
  • the friction driving portion 9112 of the second driving element 943 will extend further inward of the second groove 9451, so that since the first groove 9441 has a reduced diameter, and the second groove 9451 With a reduced diameter, the friction driving part 9112 of the first driving element 942 can re-contact the first friction driving part 9131 disposed in the first groove 9441, and the friction driving part 9112 of the second driving element 943
  • the friction driving part 9112 can be in contact with the second friction driving part 9132 disposed in the second groove 9451 again, and in this way, the first driving element 942 and the second driving element can be
  • variable-focus camera module based on the embodiments of the present application has been clarified, wherein the variable-focus camera module adopts the piezoelectric actuator 9100 as a driver so as not only to provide a sufficiently large driving force, but also to The driving performance with higher precision and longer stroke is provided to meet the zoom requirements of the variable-focus camera module.
  • the piezoelectric actuator 9100 has a relatively small size, so as to better adapt to the development trend of lightening and thinning of the camera module.
  • the variable-focus camera module adopts a reasonable layout scheme to arrange the piezoelectric actuator 9100 in the variable-focus camera module, so as to meet the structure and size requirements of the variable-focus camera module.

Abstract

A periscopic photographing module and a variable-focus photographing module. For some drive mechanisms (742, 743, 842, 843, 942, 943) in the periscopic photographing module and the variable-focus photographing module, piezoelectric actuators (7100, 8100, 9100) are used as drivers to provide sufficient driving force and a better driving performance. The piezoelectric actuator (7100) comprises a piezoelectric active portion (7110), a driven shaft (7120) connected to the piezoelectric active portion (7110) in a transmission manner, and a drive portion (7130) movably arranged on the driven shaft. Alternatively, the piezoelectric actuator (8100) comprises a piezoelectric active portion (8110), and a friction drive portion (8120) connected to the piezoelectric active portion (8110) in a transmission manner. Alternatively, the piezoelectric actuator (9100) comprises an actuating system (9110) and a drive circuit system (9120), wherein the actuating system comprises a piezoelectric plate structure (9111) and a friction drive portion (9112) fixed to the piezoelectric plate structure (9111), and the actuating system (9110) is controlled by the drive circuit system (9120) to move in a preset direction, along a two-dimensional trajectory, in the manner of flexural vibration in two directions.

Description

潜望式摄像模组和可变焦摄像模组Periscope camera module and zoom camera module 技术领域technical field
本申请涉及摄像模组领域，尤其涉及潜望式摄像模组和可变焦潜望式摄像模组，其中，所述潜望式摄像模组和所述可变焦摄像模组中的部分驱动机构中采用压电致动器作为驱动器以提供足够大的驱动力和相对更佳的驱动性能。并且，所述压电致动器以合理方式被布设于所述可变焦潜望式摄像模组或所述可变焦摄像模组中，以满足所述潜望式摄像模组或所述可变焦摄像模组在功能、结构和尺寸等方面的设计要求。The present application relates to the field of camera modules, and in particular, to a periscope camera module and a zoomable periscope camera module, wherein the periscope camera module and some of the driving mechanisms in the variable zoom camera module are A piezoelectric actuator is used as a driver to provide a sufficiently large driving force and relatively better driving performance. In addition, the piezoelectric actuator is arranged in the variable-focus periscope camera module or the variable-focus camera module in a reasonable manner to meet the requirements of the periscope camera module or the variable-focus camera module. The design requirements of the camera module in terms of function, structure and size.
背景技术Background technique
随着移动电子设备的普及，被用于移动电子设备的用于帮助使用者获取影像(例如，视频或者图像)的摄像模组的相关技术得到了迅猛的发展和进步，并且在近年来，摄像模组在诸如医疗、安防、工业生产等诸多的领域都得到了广泛的应用。With the popularization of mobile electronic devices, the related technologies of camera modules used in mobile electronic devices to help users acquire images (eg, videos or images) have been rapidly developed and advanced, and in recent years, camera modules Modules have been widely used in many fields such as medical treatment, security, industrial production and so on.
为了满足越来越广泛的市场需求，高像素、大芯片、小尺寸是现有摄像模组不可逆转的发展趋势。随着感光芯片朝着高像素和大芯片的方向发展，与感光芯片适配的光学镜头的尺寸也逐渐增大，这给用于驱动光学镜头以进行光学性能调整(例如，光学对焦、光学防抖等)的驱动机构带来的新的挑战。In order to meet more and more extensive market demands, high pixel, large chip, and small size are the irreversible development trends of existing camera modules. As the photosensitive chip develops towards high pixels and large chips, the size of the optical lens adapted to the photosensitive chip also gradually increases, which makes it possible to drive the optical lens for optical performance adjustment (for example, optical focusing, optical anti-lock, etc.). New challenges brought about by the drive mechanism of vibration, etc.
具体地，现有的用于驱动光学镜头的驱动元件为电磁式马达，例如，音圈马达(Voice Coil Motor:VCM)、形状记忆合金驱动器(Shape of Memory Alloy Actuator:SMA)等。然而，随着光学镜头尺寸增加而导致的重量增加，现有的电磁式马达已逐渐无法提供足够的驱动力来驱动光学镜头移动。量化来看，现有的音圈马达和形状记忆合金驱动器仅适于驱动重量小于100mg的光学镜头，也就是，如果光学镜头的重量超过100mg，现有的驱动器将无法满足摄像模组的应用需求。Specifically, the existing driving element for driving the optical lens is an electromagnetic motor, for example, a voice coil motor (Voice Coil Motor: VCM), a shape memory alloy actuator (Shape of Memory Alloy Actuator: SMA), and the like. However, with the increase in weight caused by the increase in the size of the optical lens, the existing electromagnetic motor has gradually been unable to provide enough driving force to drive the optical lens to move. Quantitatively, the existing voice coil motor and shape memory alloy driver are only suitable for driving optical lenses with a weight of less than 100mg, that is, if the weight of the optical lens exceeds 100mg, the existing drivers will not be able to meet the application requirements of the camera module .
此外，随着市场需求的变化和发展，近年来还要求配置于终端设备的摄 像模组能够实现变焦拍摄的功能，例如，通过光学变焦来实现远景拍摄的需求。相较于传统的摄像模组(例如，动焦摄像模组)，光学变焦摄像模组不仅包括具有更大尺寸和重量的镜头，也就是，要求驱动器提供更大的驱动力，而且，还要求用于驱动镜头移动的驱动器能够提供精度更高和行程更长的驱动性能。上述技术要求，现有的电磁式驱动马达已无法满足。同时，现有的电磁式致动器还存在电磁干扰的问题。In addition, with the change and development of market demand, in recent years, the camera module configured in the terminal device is also required to be able to realize the function of zoom shooting, for example, the requirement of realizing long-range shooting through optical zoom. Compared with the traditional camera module (for example, the moving focus camera module), the optical zoom camera module not only includes a lens with a larger size and weight, that is, requires the driver to provide a larger driving force, but also requires The drive used to drive the lens movement provides drive performance with higher precision and longer travel. The above technical requirements cannot be met by the existing electromagnetic drive motors. Meanwhile, the existing electromagnetic actuator also has the problem of electromagnetic interference.
因此，需要一种适配的用于摄像模组的新型驱动方案。Therefore, there is a need for a novel driving scheme suitable for the camera module.
发明内容SUMMARY OF THE INVENTION
本申请的一优势在于提供了一种潜望式摄像模组，其中，所述潜望式摄像模组的部分驱动机构采用压电致动器作为驱动器以提供足够大的驱动力和相对更佳的驱动性能。An advantage of the present application is to provide a periscope camera module, wherein part of the driving mechanism of the periscope camera module adopts a piezoelectric actuator as a driver to provide a sufficiently large driving force and a relatively better driving force. drive performance.
本申请的另一优势在于提供了一种潜望式摄像模组，其中，所述压电致动器以合理方式被布设于所述可变焦潜望式摄像模组中，以满足所述潜望式摄像模组在功能、结构和尺寸等方面的设计要求。Another advantage of the present application is to provide a periscope camera module, wherein the piezoelectric actuator is arranged in the variable-focus periscope camera module in a reasonable manner to meet the requirements of the periscope camera module. The design requirements of the camera module in terms of function, structure and size.
本申请的又一优势在于提供了一种潜望式摄像模组，其中，所述潜望式摄像模组具有一体式结构，具体地，所述潜望式摄像模组的光转折组件、变焦透镜组和驱动组件被设置于其壳体所形成的收容空间内，以使得所述潜望式摄像模组具有相对紧凑的结构配置。Another advantage of the present application is to provide a periscope camera module, wherein the periscope camera module has an integrated structure. The lens group and the driving assembly are arranged in the receiving space formed by the casing, so that the periscope camera module has a relatively compact structure configuration.
本申请的又一优势在于提供了一种潜望式摄像模组，其中，所述壳体的底表面形成用于安装光转折组件、变焦透镜组和驱动组件的安装基面，也就是，所述光转折组件、所述变焦透镜组和所述驱动组件具有同一安装基准面，以利于提高安装之后的所述光转折组件、所述变焦透镜组和所述驱动组件之间的相对位置精度。Yet another advantage of the present application is to provide a periscope camera module, wherein the bottom surface of the housing forms a mounting base for mounting the light-reflecting component, the zoom lens group and the driving component, that is, the The light deflection assembly, the zoom lens group and the driving assembly have the same installation reference plane, so as to improve the relative positional accuracy between the light deflection assembly, the zoom lens group and the driving assembly after installation.
本申请的一优势在于提供了一种可变焦摄像模组，其中，所述可变焦摄像模组采用新型的压电致动器作为驱动元件以不仅能够提供足够大的驱动力，而且，能够提供精度更高和行程更长的驱动性能，以满足所述可变焦摄像模组的光学性能调整的需求，例如，光学变焦的需求。An advantage of the present application is to provide a variable-focus camera module, wherein the variable-focus camera module adopts a novel piezoelectric actuator as a driving element to not only provide a sufficiently large driving force, but also provide The driving performance with higher precision and longer stroke can meet the requirement of adjusting the optical performance of the variable-focus camera module, for example, the requirement of optical zoom.
本申请的另一优势在于提供了一种可变焦摄像模组，其中，所述压电致 动器具有相对较小的尺寸，以更好地适配于摄像模组轻型化和薄型化的发展趋势。Another advantage of the present application is to provide a zoom camera module, wherein the piezoelectric actuator has a relatively small size, so as to better adapt to the development of light and thin camera modules trend.
本申请的又一优势在于提供了一种可变焦摄像模组，其中，采用合理的布设方案将所述压电致动器布设于所述可变焦摄像模组中，以满足可变焦摄像模组的结构和尺寸要求。Another advantage of the present application is to provide a zoom camera module, wherein the piezoelectric actuator is arranged in the zoom camera module by adopting a reasonable arrangement scheme, so as to meet the requirements of the zoom camera module structure and size requirements.
通过下面的描述，本申请的其它优势和特征将会变得显而易见，并可以通过权利要求书中特别指出的手段和组合得到实现。Other advantages and features of the application will become apparent from the description below and may be realized by means of the instrumentalities and combinations particularly pointed out in the claims.
为实现上述至少一优势，本申请提供一种潜望式摄像模组，其包括：To achieve at least one of the above advantages, the present application provides a periscope camera module, which includes:
光转折组件，包括：第一安装载体和被安装于所述第一安装载体的光转折元件；A light turning assembly, comprising: a first mounting carrier and a light turning element mounted on the first mounting carrier;
位于所述光转折组件的光转折路径上的变焦透镜组，包括：固定部分、变焦部分和对焦部分，其中，所述变焦透镜组设有一光轴；The zoom lens group located on the light turning path of the light turning assembly includes: a fixed part, a zooming part and a focusing part, wherein the zoom lens group is provided with an optical axis;
位于所述变焦透镜组的通光路径上的感光组件，包括：线路板和电连接于所述线路板的感光芯片；以及The photosensitive component located on the light-passing path of the zoom lens group includes: a circuit board and a photosensitive chip electrically connected to the circuit board; and
驱动组件，包括第一驱动载体、第二驱动载体、第一驱动模块、第二驱动模块和第三驱动模块；a driving assembly, including a first driving carrier, a second driving carrier, a first driving module, a second driving module and a third driving module;
其中，所述变焦部分被安装于所述第一驱动载体，所述对焦部分被安装于所述第二驱动载体，所述第一驱动模块被配置为驱动所述第一驱动载体以带动所述变焦部分沿着该光轴所设定的方向移动，所述第二驱动模块被配置为驱动所述第二驱动载体以带动所述对焦部分沿着该光轴所设定的方向移动，以通过所述第一驱动模块和所述第二驱动模块分别移动所述变焦部分和所述对焦部分来进行光学变焦；Wherein, the zoom part is mounted on the first driving carrier, the focusing part is mounted on the second driving carrier, and the first driving module is configured to drive the first driving carrier to drive the The zooming part moves along the direction set by the optical axis, and the second driving module is configured to drive the second driving carrier to drive the focusing part to move along the direction set by the optical axis, so as to pass The first driving module and the second driving module move the zooming part and the focusing part respectively to perform optical zooming;
其中，所述第三驱动模块被配置为驱动所述感光组件在垂直于所述光轴的平面内移动和/或驱动所述光转折组件进行旋转，以进行光学防抖。Wherein, the third driving module is configured to drive the photosensitive assembly to move in a plane perpendicular to the optical axis and/or drive the light turning assembly to rotate, so as to perform optical anti-shake.
在根据本申请的潜望式摄像模组中，所述潜望式摄像模组进一步包括壳体，其中，所述壳体具有第一收容腔和第二收容腔，其中，所述光转折组件被收容于所述第一收容腔内，且所述第一驱动模块、所述第二驱动模块、所述第一驱动载体、所述第二驱动载体和所述变焦透镜组被收容于所述第二收容腔内。In the periscope camera module according to the present application, the periscope camera module further includes a housing, wherein the housing has a first receiving cavity and a second receiving cavity, wherein the light turning component is accommodated in the first accommodation cavity, and the first driving module, the second driving module, the first driving carrier, the second driving carrier and the zoom lens group are accommodated in the in the second receiving cavity.
在根据本申请的潜望式摄像模组中，所述第一驱动模块包括至少一第一 驱动元件，所述第二驱动模块包括至少一第二驱动元件，所述第一驱动元件和所述第二驱动元件被实施为压电致动器，所述压电致动器，包括：压电主动部、可传动地连接于所述压电主动部件的压电主动部的从动轴，以及，可动地设置于所述从动轴的驱动部。In the periscope camera module according to the present application, the first driving module includes at least one first driving element, the second driving module includes at least one second driving element, the first driving element and the The second drive element is implemented as a piezoelectric actuator comprising a piezoelectric active part, a driven shaft drivably connected to the piezoelectric active part of the piezoelectric active component, and , which is movably arranged on the drive part of the driven shaft.
在根据本申请的潜望式摄像模组中，所述第一驱动元件和所述第二驱动元件位于所述变焦透镜组的第一侧。In the periscope camera module according to the present application, the first driving element and the second driving element are located on a first side of the zoom lens group.
在根据本申请的潜望式摄像模组中，所述第一驱动元件和所述第二驱动元件同向地设置。In the periscope camera module according to the present application, the first driving element and the second driving element are arranged in the same direction.
在根据本申请的潜望式摄像模组中，所述第一驱动元件和所述第二驱动元件异向地设置。In the periscope camera module according to the present application, the first driving element and the second driving element are arranged in opposite directions.
在根据本申请的潜望式摄像模组中，所述驱动组件进一步包括被设置于所述变焦透镜组的与所述第一侧相对的第二侧的导引结构，其中，所述导引结构被配置为导引所述变焦部分和所述对焦部分沿着所述光轴所设定的方向移动。In the periscope camera module according to the present application, the driving assembly further includes a guide structure disposed on a second side of the zoom lens group opposite to the first side, wherein the guide A structure is configured to guide the zoom portion and the focus portion to move in a direction set by the optical axis.
在根据本申请的潜望式摄像模组中，所述导引结构包括：相间隔地设置于所述第二收容腔内的第一支撑部和第二支撑部，以及，架设于所述第一支撑部和第二支撑部之间且贯穿所述第一载体和所述第二载体的至少一导杆，所述导杆的延伸方向与所述光轴平行，通过这样的方式使得所述第一载体和所述第二载体能够被导引沿着平行于所述光轴的所述导杆所设定的方向移动。In the periscope camera module according to the present application, the guide structure includes: a first support portion and a second support portion that are arranged in the second receiving cavity at intervals, and a first support portion and a second support portion are erected on the second receiving cavity. At least one guide rod between a support part and a second support part and passing through the first carrier and the second carrier, the extending direction of the guide rod is parallel to the optical axis, in this way, the The first carrier and the second carrier can be guided to move in a direction set by the guide rod parallel to the optical axis.
在根据本申请的潜望式摄像模组中，所述第一驱动模块包括两个所述第一驱动元件，一个所述第一驱动元件被配置为从所述第一驱动载体的第一侧驱动所述第一驱动载体以带动所述变焦部分沿着所述光轴所设定的方向移动，另一个所述第一驱动元件被配置为从所述第一驱动载体的与所述第一侧相对的第二侧驱动所述第一驱动载体以带动所述变焦部分沿着所述光轴所设定的方向移动。In the periscope camera module according to the present application, the first driving module includes two of the first driving elements, and one of the first driving elements is configured from a first side of the first driving carrier The first driving carrier is driven to drive the zooming part to move along the direction set by the optical axis, and another first driving element is configured to connect with the first driving carrier from the first driving carrier. The second side opposite to the side drives the first driving carrier to drive the zoom portion to move along the direction set by the optical axis.
在根据本申请的潜望式摄像模组中，所述第二驱动模块包括两个所述第二驱动元件，其中，一个所述第二驱动元件被配置为从所述第二驱动载体的第一侧驱动所述第一载体以带动所述对焦部分沿着所述光轴所设定的方向移动，另一个所述第二驱动元件被配置为从所述第二驱动载体的与所述第一侧相对的第二侧驱动所述第二驱动载体以带动所述对焦部分沿着所述光轴 所设定的方向移动。In the periscope camera module according to the present application, the second driving module includes two of the second driving elements, wherein one of the second driving elements is configured to extend from the second driving element of the second driving carrier. One side drives the first carrier to drive the focusing portion to move along the direction set by the optical axis, and the other second driving element is configured to drive from the second driving carrier to the first carrier. The second side opposite to one side drives the second driving carrier to drive the focusing portion to move along the direction set by the optical axis.
在根据本申请的潜望式摄像模组中，所述第三驱动模块包括二第三驱动元件，所述第三驱动元件被实施为压电致动器，所述压电致动器，包括：压电主动部、可传动地连接于所述压电主动部件的压电主动部的从动轴，以及，可动地设置于所述从动轴的驱动部，其中，一个所述第三驱动元件被配置为驱动所述感光组件在垂直于所述光轴的平面内沿着第一方向移动，另一所述第三驱动元件被配置为驱动所述感光组件在垂直于所述光轴的平面内沿着第二方向移动，所述第二方向垂直于所述第一方向。In the periscope camera module according to the present application, the third driving module includes two third driving elements, the third driving elements are implemented as piezoelectric actuators, and the piezoelectric actuators include : a piezoelectric active part, a driven shaft drivably connected to the piezoelectric active part of the piezoelectric active component, and a driving part movably arranged on the driven shaft, wherein one of the third The driving element is configured to drive the photosensitive assembly to move along a first direction in a plane perpendicular to the optical axis, and the other third driving element is configured to drive the photosensitive assembly to move in a plane perpendicular to the optical axis. moves along a second direction in the plane of , the second direction is perpendicular to the first direction.
在根据本申请的潜望式摄像模组中，所述驱动组件包括第一框架和第二框架，所述感光组件被设置于所述第一框架，一个所述第三驱动元件被安装于所述第二框架并被配置为驱动所述第一框架以带动所述感光组件在垂直于所述光轴的平面内沿着所述第一方向移动，另一所述第三驱动元件被配置为驱动所述第二框架以通过用于驱动所述第一框架的所述第三驱动元件带动所述第一框架以带动所述感光组件在垂直于所述光轴的平面内沿着所述第二方向移动。In the periscope camera module according to the present application, the driving assembly includes a first frame and a second frame, the photosensitive assembly is arranged on the first frame, and one of the third driving elements is installed on the first frame. The second frame is configured to drive the first frame to drive the photosensitive assembly to move along the first direction in a plane perpendicular to the optical axis, and the other third driving element is configured to The second frame is driven to drive the first frame through the third driving element for driving the first frame to drive the photosensitive assembly along the first frame in a plane perpendicular to the optical axis. Move in two directions.
在根据本申请的潜望式摄像模组中，所述第三驱动模块包括二第三驱动元件，所述第三驱动元件被实施为压电行波旋转型超声波致动器，其中，一个所述第三驱动元件被配置为驱动所述光转折组件绕着第一轴旋转，另一所述第三驱动元件被配置为驱动所述光转折组件绕着第二轴旋转，所述第二轴垂直于所述第一轴。In the periscope camera module according to the present application, the third driving module includes two third driving elements, and the third driving elements are implemented as piezoelectric traveling wave rotary ultrasonic actuators, wherein one of the The third driving element is configured to drive the light-retracting assembly to rotate about a first axis, and the other third driving element is configured to drive the light-retracting assembly to rotate about a second axis, the second axis perpendicular to the first axis.
在根据本申请的潜望式摄像模组中，所述光转折组件进一步包括具有安装腔的第二安装载体，所述光转折元件和所述第一安装载体被安装于所述第二安装载体的安装腔内，其中，一个所述第三驱动元件被安装于所述第一安装载体并被配置为驱动第一安装载体以带动所述光转折组件绕着所述第一轴旋转，另一所述第三驱动元件被安装于所述第二安装载体并被配置为驱动第二安装载体以通过所述第一安装载体带动所述光转折组件绕着所述第二轴旋转。In the periscope camera module according to the present application, the light turning assembly further includes a second mounting carrier having a mounting cavity, and the light turning element and the first mounting carrier are mounted on the second mounting carrier in the installation cavity, wherein one of the third driving elements is installed on the first installation carrier and is configured to drive the first installation carrier to drive the light turning assembly to rotate around the first axis, and the other The third driving element is mounted on the second mounting carrier and is configured to drive the second mounting carrier to drive the light turning assembly to rotate about the second axis through the first mounting carrier.
在根据本申请的潜望式摄像模组中，所述第三驱动模块包括二第三驱动元件，所述第三驱动元件被实施为电磁式马达，其中，一个所述电磁式马达被配置为驱动所述光转折组件绕着第一轴旋转，另一所述电磁式马达被配置为驱动所述光转折组件绕着第二轴旋转，所述第二轴垂直于所述第一轴。In the periscope camera module according to the present application, the third drive module includes two third drive elements, the third drive elements are implemented as electromagnetic motors, wherein one of the electromagnetic motors is configured as The light turning assembly is driven to rotate about a first axis, and the other electromagnetic motor is configured to drive the light turning assembly to rotate about a second axis, the second axis being perpendicular to the first axis.
在根据本申请的潜望式摄像模组中，所述第三驱动模块包括二第三驱动元件，其中，一个所述第三驱动元件被实施为压电致动器，另一个所述第三驱动元件被实施为压电行波旋转型超声波致动器，其中，所述压电致动器被配置为驱动所述感光组件在垂直于所述光轴的平面内沿着第一方向移动，所述压电行波旋转型超声波致动器被配置为驱动所述光转折组件绕着第一轴旋转。In the periscope camera module according to the present application, the third drive module includes two third drive elements, wherein one of the third drive elements is implemented as a piezoelectric actuator, and the other of the third drive elements is implemented as a piezoelectric actuator. the driving element is implemented as a piezoelectric traveling wave rotary ultrasonic actuator, wherein the piezoelectric actuator is configured to drive the photosensitive member to move along a first direction in a plane perpendicular to the optical axis, The piezoelectric traveling wave rotary ultrasonic actuator is configured to drive the light turning assembly to rotate about a first axis.
在根据本申请的潜望式摄像模组中，所述驱动组件包括第一框架，所述感光组件被设置于所述第一框架，其中，所述压电致动器并被配置为驱动所述第一框架以带动所述感光组件在垂直于所述光轴的平面内沿着所述第一方向移动。In the periscope camera module according to the present application, the driving component includes a first frame, and the photosensitive component is disposed on the first frame, wherein the piezoelectric actuator is configured to drive the The first frame drives the photosensitive component to move along the first direction in a plane perpendicular to the optical axis.
在根据本申请的潜望式摄像模组中，所述第一方向为所述壳体所设定的高度方向。In the periscope camera module according to the present application, the first direction is a height direction set by the casing.
在根据本申请的潜望式摄像模组中，所述第一框架具有U型结构。In the periscope camera module according to the present application, the first frame has a U-shaped structure.
在根据本申请的潜望式摄像模组中，所述第三驱动模块，包括一第三驱动元件，所述第三驱动元件被实施为压电行波旋转型超声波致动器，其中，所述压电行波旋转型超声波致动器被配置为驱动所述光转折组件绕着第一轴旋转。In the periscope camera module according to the present application, the third driving module includes a third driving element, and the third driving element is implemented as a piezoelectric traveling wave rotary ultrasonic actuator, wherein the The piezoelectric traveling-wave rotary ultrasonic actuator is configured to drive the light-reflecting assembly to rotate about a first axis.
在根据本申请的潜望式摄像模组中，所述第三驱动模块，包括一第三驱动元件，所述第三驱动元件被实施为电磁式马达，其中，所述电磁式马达被配置为驱动所述光转折组件绕着第一轴旋转。In the periscope camera module according to the present application, the third driving module includes a third driving element, and the third driving element is implemented as an electromagnetic motor, wherein the electromagnetic motor is configured as The light turning assembly is driven to rotate around the first axis.
在根据本申请的潜望式摄像模组中，所述第三驱动模块，包括一第三驱动元件，所述第三驱动元件被实施为压电致动器，其中，所述压电致动器被配置为驱动所述感光组件在垂直于所述光轴的平面内沿着第一方向移动。In the periscope camera module according to the present application, the third driving module includes a third driving element, and the third driving element is implemented as a piezoelectric actuator, wherein the piezoelectric actuator The actuator is configured to drive the photosensitive member to move along a first direction in a plane perpendicular to the optical axis.
在根据本申请的潜望式摄像模组中，所述压电致动器所产生的驱动力的大小为0.6N至2N。In the periscope camera module according to the present application, the magnitude of the driving force generated by the piezoelectric actuator is 0.6N to 2N.
在根据本申请的潜望式摄像模组中，所述对焦部分与所述对焦部分相邻地设置。In the periscope camera module according to the present application, the focusing portion is disposed adjacent to the focusing portion.
在根据本申请的潜望式摄像模组中，所述变焦部分位于所述固定部分和所述对焦部分之间。In the periscope camera module according to the present application, the zoom portion is located between the fixed portion and the focus portion.
在根据本申请的潜望式摄像模组中，所述对焦部分位于所述固定部分和所述变焦部分之间。In the periscope camera module according to the present application, the focusing part is located between the fixing part and the zooming part.
根据本申请的另一方面，本申请提供一种可变焦摄像模组，其包括：According to another aspect of the present application, the present application provides a zoom camera module comprising:
变焦透镜组，包括：固定部分、变焦部分和对焦部分，其中，所述变焦透镜组设有一光轴；A zoom lens group, comprising: a fixed part, a zoom part and a focus part, wherein the zoom lens group is provided with an optical axis;
被保持于所述变焦透镜组的通光路径上的感光组件；以及a photosensitive assembly held on the light-passing path of the zoom lens group; and
驱动组件，包括：驱动壳体、第一驱动元件、第二驱动元件、第一载体、第二载体、第一预压部件和第二预压部件，其中，所述第一驱动元件、所述第二驱动元件、所述第一载体和所述第二载体位于所述驱动壳体内，所述变焦部分被安装于所述第一载体，所述对焦部分被安装于所述第二载体；其中，所述第一驱动元件和所述第二驱动元件被实施为压电致动器，所述第一驱动元件通过所述第一预压部件被夹持地设置于所述第一载体和所述驱动壳体之间，并被配置为驱动所述第一载体以带动所述变焦部分沿着该光轴所设定的方向移动；所述第二驱动元件通过所述第二预压部分被夹持地设置于所述第二载体和所述驱动壳体之间，并被配置为驱动所述第二载体以带动所述对焦部分沿着该光轴所设定的方向移动。A drive assembly, comprising: a drive housing, a first drive element, a second drive element, a first carrier, a second carrier, a first pre-pressing part and a second pre-pressing part, wherein the first driving element, the A second drive element, the first carrier, and the second carrier are located within the drive housing, the zoom portion is mounted to the first carrier, and the focus portion is mounted to the second carrier; wherein , the first drive element and the second drive element are implemented as piezoelectric actuators, the first drive element is clamped to the first carrier and the between the driving housings, and is configured to drive the first carrier to drive the zooming part to move along the direction set by the optical axis; the second driving element is forced by the second preloading part It is sandwiched between the second carrier and the driving housing, and is configured to drive the second carrier to drive the focusing portion to move along the direction set by the optical axis.
在根据本申请的可变焦摄像模组中，所述压电致动器，包括：压电主动部和可传动地连接于所述压电主动部的摩擦驱动部，其中，在所述压电致动器被导通后，所述摩擦驱动部在所述压电主动部作用下被配置为提供用于驱动所述第一载体或所述第二载体的驱动力。In the variable-focus camera module according to the present application, the piezoelectric actuator includes: a piezoelectric active part and a friction driving part drivably connected to the piezoelectric active part, wherein in the piezoelectric After the actuator is turned on, the friction driving part is configured to provide a driving force for driving the first carrier or the second carrier under the action of the piezoelectric active part.
在根据本申请的可变焦摄像模组中，所述压电主动部具有多组相互交替设置的第一极化区域和第二极化区域，所述第一极化区域和所述第二极化区域具有相反的极化方向，其中，在所述压电致动器被导通后，相互交替设置的多组所述第一极化区域和所述第二极化区域发生不同方向的形变以带动所述摩擦驱动部以行波的方式沿着预设方向运动，以提供用于驱动第一载体或所述第二载体的驱动力。In the variable-focus camera module according to the present application, the piezoelectric active part has a plurality of sets of first polarized regions and second polarized regions alternately arranged with each other, the first polarized regions and the second polarized regions The polarization regions have opposite polarization directions, wherein, after the piezoelectric actuator is turned on, the plurality of groups of the first polarization regions and the second polarization regions alternately arranged with each other undergo deformation in different directions The friction driving part is driven to move along a preset direction in the manner of traveling waves, so as to provide a driving force for driving the first carrier or the second carrier.
在根据本申请的可变焦摄像模组中，每组所述第一极化区域和所述第二极化区域具有相反的极化方向。In the variable-focus camera module according to the present application, each group of the first polarization region and the second polarization region has opposite polarization directions.
在根据本申请的可变焦摄像模组中，每组所述第一极化区域和所述第二极化区域具有相同的极化方向。In the variable-focus camera module according to the present application, each group of the first polarization region and the second polarization region has the same polarization direction.
在根据本申请的可变焦摄像模组中，所述摩擦驱动部包括多个相互间隔设置的摩擦驱动元件，每个所述摩擦驱动元件的第一端耦接于所述压电主动部。In the variable-focus camera module according to the present application, the friction driving part includes a plurality of friction driving elements spaced apart from each other, and the first end of each friction driving element is coupled to the piezoelectric active part.
在根据本申请的可变焦摄像模组中，所述多个摩擦驱动元件位于所述压电主动部的中部区域。In the variable-focus camera module according to the present application, the plurality of friction driving elements are located in the middle area of the piezoelectric active part.
在根据本申请的可变焦摄像模组中，所述压电致动器进一步包括：叠置于所述压电主动部的摩擦连接层，每个所述摩擦驱动元件以其第一端固定于所述摩擦连接层的方式被耦接于所述压电主动部。In the variable-focus camera module according to the present application, the piezoelectric actuator further comprises: a frictional connection layer stacked on the piezoelectric active part, and each of the frictional driving elements is fixed on the first end of the frictional driving element. The frictional connection layer is coupled to the piezoelectric active part.
在根据本申请的可变焦摄像模组中，所述多个摩擦驱动元件的与所述第一端相对的第二端的多个端面处于同一平面。In the variable-focus camera module according to the present application, the plurality of end surfaces of the second ends of the plurality of friction driving elements opposite to the first ends are in the same plane.
在根据本申请的可变焦摄像模组中，所述驱动组件进一步包括第一摩擦作动部和第二摩擦作动部，所述第一摩擦作动部被设置于所述第一驱动元件和所述第一载体之间，所述第二摩擦作动部被设置于所述第二驱动元件和所述第二载体之间。In the variable-focus camera module according to the present application, the driving assembly further includes a first friction actuating portion and a second friction actuating portion, the first friction actuating portion is disposed between the first driving element and the second friction actuating portion. Between the first carriers, the second friction actuating portion is provided between the second driving element and the second carrier.
在根据本申请的可变焦摄像模组中，所述第一摩擦作动部具有第一表面和与所述第一表面相对的第二表面，所述第一表面抵触于所述第一载体的侧表面，所述第二表面抵触于所述多个摩擦驱动元件中至少一个所述摩擦驱动元件的第二端的端面；所述第二摩擦作动部具有第三表面和与所述第三表面相对的第四表面，所述第三表面抵触于所述第二载体的侧表面，所述第四表面抵触于所述多个摩擦驱动元件中至少一个所述摩擦驱动元件的第二端的端面。In the variable-focus camera module according to the present application, the first friction actuating part has a first surface and a second surface opposite to the first surface, and the first surface is in contact with the first carrier. a side surface, the second surface abuts against the end surface of the second end of at least one of the friction driving elements in the plurality of friction driving elements; the second friction actuating portion has a third surface and a contact surface with the third surface The opposite fourth surface, the third surface abuts the side surface of the second carrier, and the fourth surface abuts the end surface of the second end of at least one of the plurality of friction driving elements.
在根据本申请的可变焦摄像模组中，所述第一摩擦作动部一体成型于所述第一载体的侧表面，和/或所述第二摩擦作动部一体成型于所述第二载体的侧表面。In the zoom camera module according to the present application, the first friction actuating part is integrally formed on the side surface of the first carrier, and/or the second friction actuating part is integrally formed on the second side surface of the carrier.
在根据本申请的可变焦摄像模组中，所述压电致动器的长度尺寸小于等于10mm、其宽度尺寸小于等于1mm、以及，其高度尺寸小于等于1mm。In the variable-focus camera module according to the present application, the piezoelectric actuator has a length dimension of 10 mm or less, a width dimension of 1 mm or less, and a height dimension of 1 mm or less.
在根据本申请的可变焦摄像模组中，所述第一预压部件包括第一弹性元件，所述第一弹性元件被设置于所述第一驱动元件的压电主动部和所述驱动壳体之间，以通过所述第一弹性元件的弹力迫使所述第一驱动元件被夹持地设置于所述驱动壳体和所述第一载体之间；所述第二预压部件包括第二弹性元件，所述第二弹性元件被设置于所述第二驱动元件的压电主动部和所述驱动壳体之间，以通过所述第二弹性元件的弹力迫使所述第二驱动元件被夹持地设置于所述驱动壳体和所述第一载体之间。In the variable-focus camera module according to the present application, the first pre-compression member includes a first elastic element, and the first elastic element is disposed on the piezoelectric active part of the first driving element and the driving shell the first driving element is clamped and disposed between the driving housing and the first carrier by the elastic force of the first elastic element; the second pre-pressing part includes a first Two elastic elements, the second elastic element is disposed between the piezoelectric active part of the second driving element and the driving housing, so as to force the second driving element by the elastic force of the second elastic element is sandwiched between the drive housing and the first carrier.
在根据本申请的可变焦摄像模组中，所述第一弹性元件和所述第二弹性 元件被实施为具有弹性的黏着剂。In the variable-focus camera module according to the present application, the first elastic element and the second elastic element are implemented as adhesives having elasticity.
在根据本申请的可变焦摄像模组中，所述第一弹性元件和所述第二弹性元件的厚度尺寸为10um至50um之间。In the variable-focus camera module according to the present application, the thickness dimension of the first elastic element and the second elastic element is between 10um and 50um.
在根据本申请的可变焦摄像模组中，第一预压部件包括设置于所述第一载体的第一磁吸元件和设置于所述驱动壳体且对应于所述第一磁吸元件的第二磁吸元件，以通过所述第一磁吸元件和所述第二磁吸元件之间的磁作用力迫使所述第一驱动元件被夹持地设置于所述驱动壳体和所述第一载体之间；所述第二预压部件包括设置于所述第二载体的第三磁吸元件和设置于所述驱动壳体且对应于所述第三磁吸元件的第四磁吸元件，以通过所述第三磁吸元件和所述第三磁吸元件之间的磁作用力迫使所述第二驱动元件被夹持地设置于所述驱动壳体和所述第一载体之间。In the variable-focus camera module according to the present application, the first pre-pressing component includes a first magnetic element disposed on the first carrier and a first magnetic element disposed on the drive housing and corresponding to the first magnetic element. a second magnetic attraction element, so as to force the first driving element to be clamped and disposed on the drive housing and the second magnetic attraction element through the magnetic force between the first magnetic attraction element and the second magnetic attraction element between the first carriers; the second pre-compression component includes a third magnetic attraction element disposed on the second carrier and a fourth magnetic attraction element disposed in the drive housing and corresponding to the third magnetic attraction element element, so as to force the second driving element to be clamped and disposed between the driving housing and the first carrier through the magnetic force between the third magnetic attraction element and the third magnetic attraction element between.
在根据本申请的可变焦摄像模组中，所述第一驱动元件和所述第二驱动元件被同时设置于所述变焦透镜组的第一侧。In the variable-focus camera module according to the present application, the first driving element and the second driving element are simultaneously disposed on the first side of the zoom lens group.
在根据本申请的可变焦摄像模组中，所述第一驱动元件和所述第二驱动元件在所述变焦透镜组的第一侧相互对齐地设置。In the variable-focus camera module according to the present application, the first driving element and the second driving element are arranged in alignment with each other on the first side of the zoom lens group.
在根据本申请的可变焦摄像模组中，所述第一驱动元件被设置于所述第一载体的侧表面和所述驱动壳体的侧表面之间，所述第二驱动元件被设置于所述第二载体的侧表面和所述驱动壳体的侧表面之间。In the variable-focus camera module according to the present application, the first driving element is provided between the side surface of the first carrier and the side surface of the driving housing, and the second driving element is provided at between the side surface of the second carrier and the side surface of the drive housing.
在根据本申请的可变焦摄像模组中，所述第一驱动元件被设置于所述第一载体的底表面和所述驱动壳体的底表面之间，所述第二驱动元件被设置于所述第二载体的底表面和所述驱动壳体的底表面之间。In the variable-focus camera module according to the present application, the first driving element is disposed between the bottom surface of the first carrier and the bottom surface of the driving housing, and the second driving element is disposed between between the bottom surface of the second carrier and the bottom surface of the drive housing.
在根据本申请的可变焦摄像模组中，所述第一载体具有凹陷地形成于其侧表面且横向延伸的第一收容腔，所述第二载体具有凹陷地形成于其侧表面且横向延伸的第二收容腔，其中，所述第一驱动元件被设置于所述第一收容腔内，所述第二驱动元件被设置于所述第二收容腔内。In the zoom camera module according to the present application, the first carrier has a first receiving cavity formed concavely on its side surface and extending laterally, and the second carrier has a side surface formed concavely and extending laterally The second accommodating cavity, wherein the first driving element is arranged in the first accommodating cavity, and the second driving element is arranged in the second accommodating cavity.
在根据本申请的可变焦摄像模组中，所述第一收容腔的深度尺寸与所述第一驱动元件的高度尺寸相等，和/或，所述第二收容腔的深度尺寸与所述第二驱动元件的高度尺寸相等。In the zoom camera module according to the present application, the depth dimension of the first accommodating cavity is equal to the height dimension of the first driving element, and/or the depth dimension of the second accommodating cavity is the same as that of the first accommodating cavity. The height dimensions of the two driving elements are equal.
在根据本申请的可变焦摄像模组中，所述第一载体具有凹陷地形成于其底表面且横向延伸的第三收容腔，所述第二载体具有凹陷地形成于其底表面且横向延伸的第四收容腔，其中，所述第一驱动元件被设置于所述第三收容 腔内，所述第二驱动元件被设置于所述第四收容腔内。In the zoom camera module according to the present application, the first carrier has a third accommodating cavity formed concavely on the bottom surface and extending laterally, and the second carrier has a bottom surface formed concavely and extending laterally The fourth accommodating cavity, wherein the first driving element is arranged in the third accommodating cavity, and the second driving element is arranged in the fourth accommodating cavity.
在根据本申请的可变焦摄像模组中，所述第三收容腔的深度尺寸与所述第一驱动元件的高度尺寸相等，和/或，所述第四收容腔的深度尺寸与所述第二驱动元件的高度尺寸相等。In the zoom camera module according to the present application, the depth dimension of the third accommodating cavity is equal to the height dimension of the first driving element, and/or the depth dimension of the fourth accommodating cavity is the same as the depth dimension of the fourth accommodating cavity. The height dimensions of the two driving elements are equal.
在根据本申请的可变焦摄像模组中，所述驱动组件，进一步包括设置于所述变焦透镜组的与所述第一侧相对的第二侧的导引结构，所述导引结构被配置为引导所述对焦部分和所述变焦部分沿着该光轴移动。In the variable-focus camera module according to the present application, the driving assembly further includes a guide structure disposed on a second side of the zoom lens group opposite to the first side, the guide structure is configured To guide the focusing portion and the zooming portion to move along the optical axis.
在根据本申请的可变焦摄像模组中，所述导引结构，包括：相间隔地形成于所述驱动壳体的第一支撑部和第二支撑部，以及，架设于所述第一支撑部和第二支撑部之间且贯穿所述第一载体和所述第二载体的至少一导杆，所述导杆与该光轴平行，以使得所述第一载体和所述第二载体能够被导引沿着平行于该光轴的所述导杆移动。In the zoom camera module according to the present application, the guide structure includes: a first support portion and a second support portion formed on the drive housing at intervals, and a first support portion is erected on the first support At least one guide rod between the first carrier and the second support part and passing through the first carrier and the second carrier, the guide rod is parallel to the optical axis, so that the first carrier and the second carrier Can be guided to move along said guide rods parallel to the optical axis.
在根据本申请的可变焦摄像模组中，所述导引机构进一步包括设置于所述第一载体和所述驱动壳体之间的第一导引机构和设置于所述第二载体和所述驱动壳体之间的第二导引机构，其中，所述第一导引机构被配置为引导所述变焦部分沿着该光轴移动，所述第二导引机构被配置为引导所述对焦部分沿着该光轴移动。In the variable-focus camera module according to the present application, the guide mechanism further includes a first guide mechanism disposed between the first carrier and the drive housing, and a first guide mechanism disposed between the second carrier and the drive housing. a second guide mechanism between the drive housings, wherein the first guide mechanism is configured to guide the zoom portion to move along the optical axis, and the second guide mechanism is configured to guide the The focusing portion moves along this optical axis.
在根据本申请的可变焦摄像模组中，所述第一导引机构，包括设置于所述第一载体和所述驱动壳体之间的至少一滚珠，以及，设置于所述第一载体和所述驱动壳体之间的用于容纳所述至少一滚珠的收容槽；所述第二导引机构，包括设置于所述第二载体和所述驱动壳体之间的至少一滚珠，以及，设置于所述第二载体和所述驱动壳体之间的用于容纳所述至少一滚珠的收容槽。In the variable-focus camera module according to the present application, the first guide mechanism includes at least one ball arranged between the first carrier and the drive housing, and is arranged on the first carrier a accommodating groove for accommodating the at least one ball between the drive housing and the second guide mechanism; the second guide mechanism includes at least one ball arranged between the second carrier and the drive housing, And, an accommodating groove for accommodating the at least one ball is disposed between the second carrier and the driving housing.
在根据本申请的可变焦摄像模组中，所述第一导引机构，包括：设置于所述第一载体和所述驱动壳体之间的至少一滑块，以及，设置于所述驱动壳体与所述第一载体之间的适于所述至少一滑块滑动的滑轨；所述第二导引机构，包括：设置于所述第二载体和所述驱动壳体之间的至少一滑块，以及，设置于所述驱动壳体与所述第二载体之间的适于所述至少一滑块滑动的滑轨。In the zoom camera module according to the present application, the first guide mechanism includes: at least one sliding block disposed between the first carrier and the drive housing, and disposed in the drive A slide rail suitable for sliding of the at least one slider between the housing and the first carrier; the second guide mechanism includes: a slide rail arranged between the second carrier and the drive housing At least one slider, and a slide rail disposed between the drive housing and the second carrier suitable for the at least one slider to slide.
在根据本申请的可变焦摄像模组中，所述可变焦摄像模组进一步包括：用于将成像光线转折至所述变焦透镜组的光转折元件。In the variable-focus camera module according to the present application, the variable-focus camera module further comprises: a light turning element for turning the imaging light to the zoom lens group.
在根据本申请的可变焦摄像模组中，所述对焦部分和所述变焦部分相邻地设置。In the variable-focus camera module according to the present application, the focusing portion and the zooming portion are disposed adjacent to each other.
根据本申请的又一方面，本申请提供一种可变焦摄像模组，其包括：According to another aspect of the present application, the present application provides a zoom camera module comprising:
变焦透镜组，包括：固定部分、变焦部分和对焦部分，其中，所述变焦透镜组设有一光轴；A zoom lens group, comprising: a fixed part, a zoom part and a focus part, wherein the zoom lens group is provided with an optical axis;
被保持于所述变焦透镜组的通光路径上的感光组件；以及a photosensitive assembly held on the light-passing path of the zoom lens group; and
驱动组件，包括：驱动壳体、第一驱动元件、第二驱动元件、第一载体、第二载体、第一预压部件和第二预压部件，其中，所述第一驱动元件、所述第二驱动元件、所述第一载体和所述第二载体位于所述驱动壳体内，所述变焦部分被安装于所述第一载体，所述对焦部分被安装于所述第二载体；A drive assembly, comprising: a drive housing, a first drive element, a second drive element, a first carrier, a second carrier, a first pre-pressing part and a second pre-pressing part, wherein the first driving element, the A second driving element, the first carrier and the second carrier are located in the driving housing, the zoom portion is mounted on the first carrier, and the focusing portion is mounted on the second carrier;
其中，所述第一驱动元件和所述第二驱动元件被实施为压电致动器，所述第一驱动元件通过所述第一预压部件被摩擦地耦合于所述第一载体并被配置为在被驱动后以沿着两个方向弯曲振动的方式沿着该光轴设定的方向呈二维轨迹运动以此通过摩擦来驱动所述第一载体以带动所述变焦部分沿着该光轴所设定的方向移动；所述第二驱动元件通过所述第二预压部分摩擦地耦合于所述第二载体并被配置为在被驱动后以沿着两个方向弯曲振动的方式沿着所述光轴所设定的方向呈二维轨迹运动以此通过摩擦来驱动所述第二载体以带动所述对焦部分沿着该光轴所设定的方向移动。In this case, the first drive element and the second drive element are embodied as piezoelectric actuators, the first drive element being frictionally coupled to the first carrier via the first prestressing element and held by the It is configured to move in a two-dimensional trajectory along the direction set by the optical axis in a manner of bending vibration in two directions after being driven, so as to drive the first carrier through friction to drive the zoom portion along the optical axis. moving in the direction set by the optical axis; the second drive element is frictionally coupled to the second carrier through the second preload portion and is configured to flexibly vibrate in both directions after being driven The second carrier is moved along the direction set by the optical axis in a two-dimensional trajectory so as to drive the second carrier through friction to drive the focusing portion to move along the direction set by the optical axis.
在根据本申请的可变焦摄像模组中，所述压电致动器，包括：致动系统和驱动电路系统，其中，所述致动系统在所述驱动电路系统的控制下以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动。In the variable-focus camera module according to the present application, the piezoelectric actuator includes an actuation system and a drive circuit system, wherein the actuation system is controlled by the drive circuit system to move along two It moves in a two-dimensional trajectory along a preset direction in a way of bending vibration in one direction.
在根据本申请的可变焦摄像模组中，所述致动系统，包括：压电板结构和固定于所述压电板结构的摩擦驱动部，所述摩擦驱动部摩擦地耦接于所述第一载体或所述第二载体。In the variable-focus camera module according to the present application, the actuating system includes: a piezoelectric plate structure and a friction driving part fixed to the piezoelectric plate structure, the friction driving part is frictionally coupled to the the first carrier or the second carrier.
在根据本申请的可变焦摄像模组中，所述压电板结构具有沿着其深度方向延伸的第一侧表面和沿着其高度方向延伸的且与所述第一侧表面相邻的第二侧表面，其中，所述压电板结构沿着其深度方向具有第一共振频率且沿着其高度方向具有第二共振频率，其中，所述第二共振频率大于所述第一共振频率。In the zoom camera module according to the present application, the piezoelectric plate structure has a first side surface extending along its depth direction and a first side surface extending along its height direction and adjacent to the first side surface Two side surfaces, wherein the piezoelectric plate structure has a first resonance frequency along its depth direction and a second resonance frequency along its height direction, wherein the second resonance frequency is greater than the first resonance frequency.
在根据本申请的可变焦摄像模组中，所述压电板结构包括形成于所述第二侧表面的第一压电区域、第二压电区域和第三压电区域，以及，形成于所 述第一侧表面的第四压电区域，其中，所述第二压电区域位于所述第一压电区域和所述第三压电区域区间，且所述第四压电区域与所述第二压电区域相邻的；其中，所述压电板结构进一步包括电连接于所述第一压电区域的第一电极对、电连接于所述第二压电区域的第二电极对、电连接于所述第三压电区域的第三电极对和电连接于所述第四电连接区域的第四电极对。In the variable-focus camera module according to the present application, the piezoelectric plate structure includes a first piezoelectric region, a second piezoelectric region and a third piezoelectric region formed on the second side surface, and formed on the second side surface. The fourth piezoelectric region on the first side surface, wherein the second piezoelectric region is located between the first piezoelectric region and the third piezoelectric region, and the fourth piezoelectric region is connected to the fourth piezoelectric region. The second piezoelectric regions are adjacent to each other; wherein, the piezoelectric plate structure further includes a first electrode pair electrically connected to the first piezoelectric region and a second electrode electrically connected to the second piezoelectric region pair, a third electrode pair electrically connected to the third piezoelectric region, and a fourth electrode pair electrically connected to the fourth electrical connection region.
在根据本申请的可变焦摄像模组中，所述驱动电路系统包括第一驱动电路和第二驱动电路，所述第一驱动电路电连接于所述第一电极对和所述第三电极对，所述第二驱动电路电连接于所述第二电极对和所述第四电极对；其中，所述第一驱动电路和所述第二驱动电路输出的电路振动信号振动频率等于所述第一共振频率或所述第二共振频率。In the variable-focus camera module according to the present application, the driving circuit system includes a first driving circuit and a second driving circuit, and the first driving circuit is electrically connected to the first electrode pair and the third electrode pair , the second drive circuit is electrically connected to the second electrode pair and the fourth electrode pair; wherein, the vibration frequency of the circuit vibration signal output by the first drive circuit and the second drive circuit is equal to the a resonant frequency or the second resonant frequency.
在根据本申请的可变焦摄像模组中，当所述第一驱动电路输出的电路振动信号的振动频率为所述第一共振频率时，所述压电板结构在其高度方向发生共振且在其深度方向发生部分共振，以使得所述压电板结构以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动；其中，当所述第二驱动电路所输入的电路振动信号的振动频率为所述第二共振频率时，所述压电板结构在其深度方向发生共振且在其高度方向发生部分共振，以使得所述压电板结构以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动。In the variable-focus camera module according to the present application, when the vibration frequency of the circuit vibration signal output by the first driving circuit is the first resonance frequency, the piezoelectric plate structure resonates in its height direction and is Partial resonance occurs in its depth direction, so that the piezoelectric plate structure moves along a two-dimensional trajectory along a preset direction in a manner of bending vibration in two directions; wherein, when the circuit input by the second drive circuit vibrates When the vibration frequency of the signal is the second resonance frequency, the piezoelectric plate structure resonates in its depth direction and partially resonates in its height direction, so that the piezoelectric plate structure bends and vibrates in two directions It moves in a two-dimensional trajectory along a preset direction.
在根据本申请的可变焦摄像模组中，所述驱动组件进一步包括第一摩擦作动部和第二摩擦作动部，所述第一摩擦作动部被夹持地设置于所述第一驱动元件的摩擦驱动部和所述第一载体之间，以通过所述第一摩擦作动部和所述第一预压部件所述第一驱动元件被摩擦地耦合于所述第一载体；所述第二摩擦作动部被夹持地设置于所述第二驱动元件的摩擦驱动部和所述第二载体之间，以通过所述第二预压部件和所述第二摩擦作动部所述第二驱动元件被摩擦地耦接于所述第二载体。In the zoom camera module according to the present application, the driving assembly further includes a first friction actuating part and a second friction actuating part, and the first friction actuating part is sandwiched and disposed on the first friction actuating part. between the friction driving portion of the driving element and the first carrier, so that the first driving element is frictionally coupled to the first carrier through the first friction actuating portion and the first preloading member; The second friction actuating portion is sandwiched between the friction actuating portion of the second driving element and the second carrier to be actuated by the second preloading member and the second friction A portion of the second drive element is frictionally coupled to the second carrier.
在根据本申请的可变焦摄像模组中，所述第一预压部件包括第一弹性元件，所述第一弹性元件被设置于所述第一驱动元件的压电板结构和所述驱动壳体之间，以通过所述第一弹性元件的弹力迫使所述第一驱动元件的摩擦驱动部抵向所述第一摩擦作动部通过这样的方式所述第一驱动元件摩擦地耦接于所述第一载体；所述第二预压元件包括第二弹性元件，所述第二弹性元件被设置于所述第二驱动元件的压电板结构和所述驱动壳体之间，以通过所述第二弹性元件的弹力迫使所述第二驱动元件的摩擦驱动部抵向所述第二 摩擦作动部通过这样的方式所述第二驱动元件摩擦地耦接于所述第二载体。In the variable-focus camera module according to the present application, the first pre-compression member includes a first elastic element, and the first elastic element is disposed on the piezoelectric plate structure of the first driving element and the driving shell between the two bodies, the first drive element is frictionally coupled to the the first carrier; the second preloading element includes a second elastic element, the second elastic element is arranged between the piezoelectric plate structure of the second driving element and the driving housing to pass The elastic force of the second elastic element forces the friction driving portion of the second driving element against the second friction actuating portion in such a way that the second driving element is frictionally coupled to the second carrier.
在根据本申请的可变焦摄像模组中，所述第一弹性元件和所述第二弹性元件被实施为具有弹性的黏着剂。In the variable-focus camera module according to the present application, the first elastic element and the second elastic element are implemented as elastic adhesives.
在根据本申请的可变焦摄像模组中，所述第一弹性元件和所述第二弹性元件的厚度尺寸为10um至50um之间。In the variable-focus camera module according to the present application, the thickness dimension of the first elastic element and the second elastic element is between 10um and 50um.
在根据本申请的可变焦摄像模组中，所述第一载体包括凹陷地形成于其表面的第一凹槽，所述第一摩擦作动部被设置于所述第一凹槽内，其中，所述第一凹槽形成用于引导所述第一驱动元件的所述摩擦驱动部移动的引导槽。In the variable-focus camera module according to the present application, the first carrier includes a first groove formed concavely on its surface, and the first friction actuating portion is disposed in the first groove, wherein , the first groove forms a guide groove for guiding the movement of the friction driving portion of the first driving element.
在根据本申请的可变焦摄像模组中，所述第二载体包括凹陷地形成于其表面的第二凹槽，所述第二摩擦作动部被设置于所述第二凹槽内，其中，所述第二凹槽形成用于引导所述第二驱动元件的所述摩擦驱动部移动的引导槽。In the variable-focus camera module according to the present application, the second carrier includes a second groove concavely formed on the surface thereof, and the second friction actuating portion is disposed in the second groove, wherein , the second groove forms a guide groove for guiding the movement of the friction driving portion of the second driving element.
在根据本申请的可变焦摄像模组中，所述第一凹槽具有减缩的口径，和/或，所述第二凹槽具有减缩的口径。In the zoom camera module according to the present application, the first groove has a reduced aperture, and/or the second groove has a reduced aperture.
在根据本申请的可变焦摄像模组中，所述第一预压部件包括设置于所述第一载体的第一磁吸元件和设置于所述驱动壳体且对应于所述第一磁吸元件的第二磁吸元件，以通过所述第一磁吸元件和所述第二磁吸元件之间的磁作用力迫使所述第一驱动元件的摩擦驱动部抵向所述第一摩擦作动部通过这样的方式所述第一驱动元件摩擦地耦接于所述第一载体；所述第二预压部件包括设置于所述第二载体的第三磁吸元件和设置于所述驱动壳体且对应于所述第三磁吸元件的第四磁吸元件，以通过所述第三磁吸元件和所述第三磁吸元件之间的磁作用力迫使所述第二驱动元件的摩擦驱动部抵向所述第二摩擦作动部通过这样的方式所述第二驱动元件摩擦地耦接于所述第二载体。In the variable-focus camera module according to the present application, the first pre-pressing component includes a first magnetic attraction element disposed on the first carrier and a first magnetic attraction element disposed on the drive housing and corresponding to the first magnetic attraction element. the second magnetic attraction element of the element to force the friction driving part of the first driving element against the first friction action through the magnetic force between the first magnetic attraction element and the second magnetic attraction element The moving part is frictionally coupled to the first carrier in such a way that the first driving element; The housing and the fourth magnetic attraction element corresponding to the third magnetic attraction element, so as to force the second driving element through the magnetic force between the third magnetic attraction element and the third magnetic attraction element The frictional drive portion is frictionally coupled to the second carrier in such a way that the second drive element is frictionally coupled against the second frictional actuation portion.
在根据本申请的可变焦摄像模组中，所述第一驱动元件和所述第二驱动元件被同时设置于所述变焦透镜组的第一侧。In the variable-focus camera module according to the present application, the first driving element and the second driving element are simultaneously disposed on the first side of the zoom lens group.
在根据本申请的可变焦摄像模组中，所述第一驱动元件和所述第二驱动元件在所述变焦透镜组的第一侧相互对齐地设置。In the variable-focus camera module according to the present application, the first driving element and the second driving element are arranged in alignment with each other on the first side of the zoom lens group.
在根据本申请的可变焦摄像模组中，所述第一驱动元件被设置于所述第一载体的侧表面和所述驱动壳体的侧表面之间，所述第二驱动元件被设置于 所述第二载体的侧表面和所述驱动壳体的侧表面之间。In the variable-focus camera module according to the present application, the first driving element is provided between the side surface of the first carrier and the side surface of the driving housing, and the second driving element is provided at between the side surface of the second carrier and the side surface of the drive housing.
在根据本申请的可变焦摄像模组中，所述第一驱动元件被设置于所述第一载体的底表面和所述驱动壳体的底表面之间，所述第二驱动元件被设置于所述第二载体的底表面和所述驱动壳体的底表面之间。In the variable-focus camera module according to the present application, the first driving element is disposed between the bottom surface of the first carrier and the bottom surface of the driving housing, and the second driving element is disposed between between the bottom surface of the second carrier and the bottom surface of the drive housing.
在根据本申请的可变焦摄像模组中，所述驱动组件，进一步包括设置于所述变焦透镜组的与所述第一侧相对的第二侧的导引结构，所述导引结构被配置为引导所述对焦部分和所述变焦部分沿着该光轴移动。In the variable-focus camera module according to the present application, the driving assembly further includes a guide structure disposed on a second side of the zoom lens group opposite to the first side, the guide structure is configured To guide the focusing portion and the zooming portion to move along the optical axis.
在根据本申请的可变焦摄像模组中，所述导引结构，包括：相间隔地形成于所述驱动壳体的第一支撑部和第二支撑部，以及，架设于所述第一支撑部和第二支撑部之间且贯穿所述第一载体和所述第二载体的至少一导杆，所述导杆与该光轴平行，以使得所述第一载体和所述第二载体能够被导引沿着平行于该光轴的所述导杆移动。In the zoom camera module according to the present application, the guide structure includes: a first support portion and a second support portion formed on the drive housing at intervals, and a first support portion is erected on the first support At least one guide rod between the first carrier and the second support part and passing through the first carrier and the second carrier, the guide rod is parallel to the optical axis, so that the first carrier and the second carrier Can be guided to move along said guide rods parallel to the optical axis.
在根据本申请的可变焦摄像模组中，所述导引结构进一步包括设置于所述第一载体和所述驱动壳体之间的第一导引机构和设置于所述第二载体和所述驱动壳体之间的第二导引机构，其中，所述第一导引机构被配置为引导所述变焦部分沿着该光轴移动，所述第二导引机构被配置为引导所述对焦部分沿着该光轴移动。In the variable-focus camera module according to the present application, the guide structure further includes a first guide mechanism disposed between the first carrier and the drive housing, and a first guide mechanism disposed between the second carrier and the drive housing. a second guide mechanism between the drive housings, wherein the first guide mechanism is configured to guide the zoom portion to move along the optical axis, and the second guide mechanism is configured to guide the The focusing portion moves along this optical axis.
在根据本申请的可变焦摄像模组中，所述第一导引机构，包括设置于所述第一载体和所述驱动壳体之间的至少一滚珠，以及，设置于所述第一载体和所述驱动壳体之间的用于容纳所述至少一滚珠的收容槽；所述第二导引机构，包括设置于所述第二载体和所述驱动壳体之间的至少一滚珠，以及，设置于所述第二载体和所述驱动壳体之间的用于容纳所述至少一滚珠的收容槽。In the variable-focus camera module according to the present application, the first guide mechanism includes at least one ball arranged between the first carrier and the drive housing, and is arranged on the first carrier a accommodating groove for accommodating the at least one ball between the drive housing and the second guide mechanism; the second guide mechanism includes at least one ball arranged between the second carrier and the drive housing, And, an accommodating groove for accommodating the at least one ball is disposed between the second carrier and the driving housing.
在根据本申请的可变焦摄像模组中，所述第一导引机构，包括：设置于所述第一载体和所述驱动壳体之间的至少一滑块，以及，设置于所述驱动壳体与所述第一载体之间的适于所述至少一滑块滑动的滑轨；所述第二导引机构，包括：设置于所述第二载体和所述驱动壳体之间的至少一滑块，以及，设置于所述驱动壳体与所述第二载体之间的适于所述至少一滑块滑动的滑轨。In the zoom camera module according to the present application, the first guide mechanism includes: at least one sliding block disposed between the first carrier and the drive housing, and disposed in the drive A slide rail suitable for sliding of the at least one slider between the housing and the first carrier; the second guide mechanism includes: a slide rail arranged between the second carrier and the drive housing At least one slider, and a slide rail disposed between the drive housing and the second carrier suitable for the at least one slider to slide.
在根据本申请的可变焦摄像模组中，所述可变焦摄像模组进一步包括：用于将成像光线转折至所述变焦透镜组的光转折元件。In the variable-focus camera module according to the present application, the variable-focus camera module further comprises: a light turning element for turning the imaging light to the zoom lens group.
在根据本申请的可变焦摄像模组中，所述对焦部分和所述变焦部分相邻地设置。In the variable-focus camera module according to the present application, the focusing portion and the zooming portion are disposed adjacent to each other.
通过对随后的描述和附图的理解，本申请进一步的目的和优势将得以充分体现。Further objects and advantages of the present application will be fully realized by an understanding of the ensuing description and drawings.
本申请的这些和其它目的、特点和优势，通过下述的详细说明，附图和权利要求得以充分体现。These and other objects, features and advantages of the present application are fully embodied by the following detailed description, drawings and claims.
附图说明Description of drawings
通过结合附图对本申请实施例进行更详细的描述，本申请的上述以及其他目的、特征和优势将变得更加明显。附图用来提供对本申请实施例的进一步理解，并且构成说明书的一部分，与本申请实施例一起用于解释本申请，并不构成对本申请的限制。在附图中，相同的参考标号通常代表相同部件或步骤。The above and other objects, features and advantages of the present application will become more apparent from the detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present application, constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation to the present application. In the drawings, the same reference numbers generally refer to the same components or steps.
图1图示了根据本申请实施例的潜望式摄像模组的示意图。FIG. 1 illustrates a schematic diagram of a periscope camera module according to an embodiment of the present application.
图2图示了根据本申请实施例的所述潜望式摄像模组的光学系统的示意图。FIG. 2 illustrates a schematic diagram of an optical system of the periscope camera module according to an embodiment of the present application.
图3图示了根据本申请实施例的所述潜望式摄像模组的光阻挡元件的一个具体示例的示意图。FIG. 3 is a schematic diagram illustrating a specific example of a light blocking element of the periscope camera module according to an embodiment of the present application.
图4图示了根据本申请实施例的所述潜望式摄像模组的截面示意图。FIG. 4 illustrates a schematic cross-sectional view of the periscope camera module according to an embodiment of the present application.
图5A和图5B图示了根据本申请实施例的所述潜望式摄像模组的压电致动器的示意图。5A and 5B illustrate schematic diagrams of piezoelectric actuators of the periscope camera module according to an embodiment of the present application.
图6A和图6B图示了根据本申请实施例的所述潜望式摄像模组的压电致动器的一个变形实施的示意图。6A and 6B illustrate schematic diagrams of a variant implementation of the piezoelectric actuator of the periscope camera module according to an embodiment of the present application.
图7A图示了根据本申请实施例的所述潜望式摄像模组的一个变形实施的示意图。FIG. 7A illustrates a schematic diagram of a variant implementation of the periscope camera module according to an embodiment of the present application.
图7B图示了根据本申请实施例的所述潜望式摄像模组的另一个变形实施的示意图。FIG. 7B illustrates a schematic diagram of another variant implementation of the periscope camera module according to an embodiment of the present application.
图7C图示了根据本申请实施例的所述潜望式摄像模组的又一个变形实施的示意图。FIG. 7C illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
图7D图示了根据本申请实施例的所述潜望式摄像模组的一个变形实施的示意图。FIG. 7D illustrates a schematic diagram of a variant implementation of the periscope camera module according to an embodiment of the present application.
图7E图示了根据本申请实施例的所述潜望式摄像模组的另一个变形实施的示意图。FIG. 7E illustrates a schematic diagram of another variant implementation of the periscope camera module according to an embodiment of the present application.
图7F图示了根据本申请实施例的所述潜望式摄像模组的又一个变形实施的示意图。FIG. 7F illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
图7G图示了根据本申请实施例的所述潜望式摄像模组的又一个变形实施的示意图。FIG. 7G illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
图7H图示了根据本申请实施例的所述潜望式摄像模组的又一个变形实施的示意图。FIG. 7H illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
图7I图示了根据本申请实施例的所述潜望式摄像模组的又一个变形实施的示意图。FIG. 7I illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
图7J图示了根据本申请实施例的所述潜望式摄像模组的又一个变形实施的示意图。FIG. 7J illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application.
图8A图示了根据本申请实施例的所述潜望式摄像模组的另一示意图。FIG. 8A illustrates another schematic diagram of the periscope camera module according to an embodiment of the present application.
图8B图示了根据本申请实施例的所述潜望式摄像模组中第三驱动模块和感光组件的示意图。8B illustrates a schematic diagram of a third driving module and a photosensitive component in the periscope camera module according to an embodiment of the present application.
图8C图示了根据本申请实施例的所述第三驱动模块和所述感光组件的一个变形实施例。FIG. 8C illustrates a modified embodiment of the third driving module and the photosensitive assembly according to an embodiment of the present application.
图8D图示了根据本申请实施例的所述第三驱动模块和所述感光组件的一个变形实施例。FIG. 8D illustrates a modified embodiment of the third driving module and the photosensitive assembly according to an embodiment of the present application.
图8E图示了根据本申请实施例的所述第三驱动模块和所述感光组件的另一个变形实施例。FIG. 8E illustrates another modified embodiment of the third driving module and the photosensitive assembly according to the embodiment of the present application.
图8F图示了根据本申请实施例的所述第三驱动模块和所述感光组件的又一个变形实施例。FIG. 8F illustrates yet another modified embodiment of the third driving module and the photosensitive assembly according to the embodiment of the present application.
图9图示了根据本申请实施例的所述潜望式摄像模组的第三驱动模块和光转折组件的示意图。FIG. 9 illustrates a schematic diagram of a third driving module and a light turning assembly of the periscope camera module according to an embodiment of the present application.
图10图示了根据本申请实施例的所述潜望式摄像模组的所述第三驱动模块和所述光转折组件的一个变形实施的示意图。FIG. 10 illustrates a schematic diagram of a variant implementation of the third driving module and the light turning assembly of the periscope camera module according to an embodiment of the present application.
图11A图示了根据本申请实施例的所述潜望式摄像模组的压电行波旋转型超声波致动器的示意图之一。FIG. 11A illustrates one of the schematic diagrams of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to an embodiment of the present application.
图11B图示了根据本申请实施例的所述潜望式摄像模组的压电行波旋转型超声波致动器的示意图之二。FIG. 11B illustrates the second schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to an embodiment of the present application.
图11C图示了根据本申请实施例的所述潜望式摄像模组的压电行波旋转型超声波致动器的示意图之三。FIG. 11C illustrates the third schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to an embodiment of the present application.
图11D图示了根据本申请实施例的所述潜望式摄像模组的压电行波旋转型超声波致动器的示意图之四。FIG. 11D illustrates the fourth schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to the embodiment of the present application.
图11E图示了根据本申请实施例的所述潜望式摄像模组的压电行波旋转型超声波致动器的示意图之五。FIG. 11E illustrates the fifth schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to an embodiment of the present application.
图11F图示了根据本申请实施例的所述潜望式摄像模组的压电行波旋转型超声波致动器的示意图之六。FIG. 11F illustrates the sixth schematic diagram of the piezoelectric traveling wave rotary ultrasonic actuator of the periscope camera module according to the embodiment of the present application.
图12图示了根据本申请实施例的所述潜望式摄像模组的所述第三驱动模块的又一变形实施的示意图。FIG. 12 is a schematic diagram illustrating yet another variant implementation of the third driving module of the periscope camera module according to an embodiment of the present application.
图13图示了根据本申请实施例的可变焦摄像模组的示意图。FIG. 13 illustrates a schematic diagram of a variable-focus camera module according to an embodiment of the present application.
图14图示了根据本申请实施例的所述可变焦摄像模组的光学系统的示意图。FIG. 14 illustrates a schematic diagram of an optical system of the variable-focus camera module according to an embodiment of the present application.
图15图示了根据申请实施例的压电致动器的示意图。15 illustrates a schematic diagram of a piezoelectric actuator according to an embodiment of the application.
图16图示了根据本申请实施例的所述压电致动器在被导通后的示意图。FIG. 16 illustrates a schematic diagram of the piezoelectric actuator after being turned on according to an embodiment of the present application.
图17图示了根据本申请实施例的所述压电致动器的一个变形实施的示意图。17 illustrates a schematic diagram of a variant implementation of the piezoelectric actuator according to embodiments of the present application.
图18图示了根据本申请实施例的所述可变焦摄像模组的另一示意图。FIG. 18 illustrates another schematic diagram of the variable-focus camera module according to an embodiment of the present application.
图19图示了根据本申请实施例的所述可变焦摄像模组的导引结构的一个变形实施的示意图。FIG. 19 is a schematic diagram illustrating a variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application.
图20图示了根据本申请实施例的所述可变焦摄像模组的导引结构的另一个变形实施的示意图。FIG. 20 is a schematic diagram illustrating another variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application.
图21图示了根据本申请实施例的所述可变焦摄像模组的一个变形实施的示意图。FIG. 21 illustrates a schematic diagram of a variant implementation of the variable-focus camera module according to an embodiment of the present application.
图22图示了根据本申请实施例的所述可变焦摄像模组的另一个变形实施的示意图。FIG. 22 illustrates a schematic diagram of another variant implementation of the variable-focus camera module according to an embodiment of the present application.
图23图示了根据本申请实施例的所述可变焦摄像模组的另一变形实施的具体放大示意图。FIG. 23 illustrates a specific enlarged schematic diagram of another variant implementation of the variable-focus camera module according to an embodiment of the present application.
图24图示了根据本申请实施例的可变焦摄像模组的示意图。FIG. 24 illustrates a schematic diagram of a variable-focus camera module according to an embodiment of the present application.
图25图示了根据本申请实施例的所述可变焦摄像模组的光学系统的示意图。FIG. 25 illustrates a schematic diagram of an optical system of the variable-focus camera module according to an embodiment of the present application.
图26图示了根据本申请实施例的所述可变焦摄像模组的截面示意图。FIG. 26 illustrates a schematic cross-sectional view of the variable-focus camera module according to an embodiment of the present application.
图27A图示了根据申请实施例的压电致动器的示意图。27A illustrates a schematic diagram of a piezoelectric actuator according to an embodiment of the application.
图27B图示了根据本申请实施例的所述压电致动器的压电板结构的示意图。27B illustrates a schematic diagram of a piezoelectric plate structure of the piezoelectric actuator according to an embodiment of the present application.
图27C图示了根据本申请实施例的所述压电致动器的驱动电路系统的信号输出的示意图。27C illustrates a schematic diagram of the signal output of the driving circuitry of the piezoelectric actuator according to an embodiment of the present application.
图27D至图27F图示了根据本申请实施例的所述压电致动器以第一模式运动的示意图。27D-27F illustrate schematic diagrams of the piezoelectric actuator moving in a first mode according to embodiments of the present application.
图27G至图27I图示了根据本申请实施例的所述压电致动器以第二模式运动的示意图。27G-27I illustrate schematic diagrams of the piezoelectric actuator moving in a second mode according to embodiments of the present application.
图27J图示了根据本申请实施例的所述压电致动器的压电板结构的另一示意图。27J illustrates another schematic diagram of a piezoelectric plate structure of the piezoelectric actuator according to an embodiment of the present application.
图27K图示了根据本申请实施例的所述压电致动器作用于被移动对象的示意图。27K illustrates a schematic diagram of the piezoelectric actuator acting on a moved object according to an embodiment of the present application.
图27L图示了根据本申请实施例的所述压电致动器的移动示意图。27L illustrates a schematic diagram of the movement of the piezoelectric actuator according to an embodiment of the present application.
图28图示了根据本申请实施例的所述可变焦摄像模组的一个变形实施的示意图。FIG. 28 illustrates a schematic diagram of a variant implementation of the variable-focus camera module according to an embodiment of the present application.
图29图示了根据本申请实施例的所述可变焦摄像模组的另一个变形实施例的示意图。FIG. 29 illustrates a schematic diagram of another modified embodiment of the variable-focus camera module according to the embodiment of the present application.
图30图示了根据本申请实施例的所述可变焦摄像模组的又一个变形实施的示意图。FIG. 30 illustrates a schematic diagram of yet another variant implementation of the variable-focus camera module according to an embodiment of the present application.
图31图示了根据本申请实施例的又一个变形实施的示意图。FIG. 31 illustrates a schematic diagram of yet another variant implementation according to an embodiment of the present application.
图32图示了根据本申请实施例的又一个变形实施的示意图。FIG. 32 illustrates a schematic diagram of yet another variant implementation according to an embodiment of the present application.
具体实施方式Detailed ways
下面，将参考附图详细地描述根据本申请的示例实施例。显然，所描述的实施例仅仅是本申请的一部分实施例，而不是本申请的全部实施例，应理解，本申请不受这里描述的示例实施例的限制。Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited by the example embodiments described herein.
申请概述Application overview
如上所述，现有的用于驱动摄像模组中的各个组件，比如光学镜头和变 焦组件的驱动元件为电磁式马达，例如，音圈马达(Voice Coil Motor:VCM)、形状记忆合金驱动器(Shape of Memory Alloy Actuator:SMA)等。由于传统上，摄像模组沿着电子设备，比如手机的厚度方向设置，因此摄像模组中的各个组件以轻薄和小型化为趋势，在这种情况下，电磁式马达可以提供足够的驱动力。但是，随着潜望式摄像模组等新型的摄像模组改变了摄像模组相对于电子设备的结构和位置关系，也就是，可以沿着电子设备的长度或者宽度方向设置，使得摄像模组不再受到电子设备的厚度方向的尺寸限制，从而可以在尺寸增加方面获得更大的自由度。As mentioned above, the existing driving elements used to drive various components in the camera module, such as optical lenses and zoom components, are electromagnetic motors, such as voice coil motors (Voice Coil Motor: VCM), shape memory alloy drivers ( Shape of Memory Alloy Actuator: SMA), etc. Since traditionally, the camera module is arranged along the thickness direction of electronic devices, such as mobile phones, so the various components in the camera module tend to be thin and miniaturized. In this case, the electromagnetic motor can provide sufficient driving force . However, with the new type of camera modules such as periscope camera modules, the structure and positional relationship of the camera module relative to the electronic device has been changed, that is, the camera module can be arranged along the length or width of the electronic device, so that the camera module It is no longer limited by the size of the electronic device in the thickness direction, so that a greater degree of freedom in size increase can be obtained.
并且，随着对于摄像模组的成像性能的要求提高，对于摄像模组的各个组件，尤其是变焦组件提出了更高的要求，伴随着尺寸增加方面的限制减小，为了实现更强的功能，摄像模组的组件设计也带来了组件尺寸的增大，从而导致组件的重量也进一步增大。在这种情况下，传统的电磁式马达不再能够提供足够的驱动力，量化来看，现有的音圈马达驱动器仅能够驱动重量小于100mg的光学镜头，而记忆合金马达则需要较大的行程空间设置，也就是，如果摄像模组中的待驱动的部件的重量超过100mg，现有的驱动器将无法满足摄像模组的应用需求或者需要增加非常多的驱动器尺寸，以提供较大推力。In addition, with the increasing requirements for the imaging performance of the camera module, higher requirements are put forward for each component of the camera module, especially the zoom component. , the component design of the camera module also brings about an increase in the size of the component, resulting in a further increase in the weight of the component. In this case, the traditional electromagnetic motor can no longer provide sufficient driving force. From a quantitative point of view, the existing voice coil motor driver can only drive the optical lens with a weight of less than 100mg, while the memory alloy motor requires a larger Travel space setting, that is, if the weight of the components to be driven in the camera module exceeds 100mg, the existing driver will not be able to meet the application requirements of the camera module or need to increase the size of the driver to provide greater thrust.
并且，随着摄像模组的发展，对于摄像模组的光学性能的调整的要求也越来越高，除了光学对焦外，还要求摄像模组能够进行光学防抖和光学变焦等功能，这些都会摄像模组的驱动方案提出了更为严苛的要求。因此，必须为摄像模组开发新一代的驱动方案。Moreover, with the development of camera modules, the requirements for the adjustment of the optical performance of the camera modules are getting higher and higher. In addition to optical focusing, the camera modules are also required to be able to perform functions such as optical image stabilization and optical zoom. The driving scheme of the camera module puts forward more stringent requirements. Therefore, a new generation of drive solutions must be developed for the camera module.
基于此，本申请的技术路线是提供一种基于能够提供更大驱动力的压电致动器的潜望式摄像模组的设计，从而满足新型的潜望式摄像模组中的组件大型化之后对组件驱动力的需求。Based on this, the technical route of the present application is to provide a design of a periscope camera module based on a piezoelectric actuator that can provide a larger driving force, so as to meet the requirements of large-scale components in the new periscope camera module Then the need for component drivers.
这里，本领域技术人员可以理解的是，由于新型的潜望式摄像模组的技术要求与传统的需要实现小型化的潜望式摄像模组的技术要求完全相反，因此在针对新型的潜望式摄像模组的技术路线中，需要一整套基于新型的潜望式摄像模组的技术要求的设计方案，而不仅是简单地将新型的致动元件应用于传统的潜望式摄像模组的设计当中。Here, those skilled in the art can understand that, since the technical requirements of the new periscope camera module are completely opposite to the technical requirements of the traditional periscope camera module that needs to be miniaturized, therefore in the new periscope camera module In the technical route of the periscope camera module, a complete set of design solutions based on the technical requirements of the new periscope camera module is required, not only the new actuating element is simply applied to the traditional periscope camera module. in design.
具体地，本申请的技术方案提供了一种潜望式摄像模组，包括：光转折组件，包括：第一安装载体和被安装于所述第一安装载体的光转折元件；位于所述光转折组件的光转折路径上的变焦透镜组，包括：固定部分、变焦部 分和对焦部分，其中，所述变焦透镜组设有一光轴；位于所述变焦透镜组的通光路径上的感光组件，包括：线路板和电连接于所述线路板的感光芯片；以及，驱动组件，包括第一驱动载体、第二驱动载体、第一驱动模块、第二驱动模块和第三驱动模块；其中，所述变焦部分被安装于所述第一驱动载体，所述对焦部分被安装于所述第二驱动载体，所述第一驱动模块被配置为驱动所述第一驱动载体以带动所述变焦部分沿着该光轴所设定的方向移动，所述第二驱动模块被配置为驱动所述第二驱动载体以带动所述对焦部分沿着该光轴所设定的方向移动，以通过所述第一驱动模块和所述第二驱动模块分别移动所述变焦部分和所述对焦部分来进行光学变焦；其中，所述第三驱动模块被配置为驱动所述感光组件在垂直于所述光轴的平面内移动和/或驱动所述光转折组件进行旋转，以进行光学防抖。特别地，所述可变焦潜望式摄像模组的至少部分驱动模块(即，所述第一驱动模块、所述第二驱动模块和所述第三驱动模块中)中采用压电致动器作为驱动器以提供足够大的驱动力和相对更佳的驱动性能。并且，采用合理的布设方案将压电致动器布设于所述可变焦潜望式摄像模组中，以满足所述可变焦潜望式摄像模组在功能、结构和尺寸等方面的设计要求。Specifically, the technical solution of the present application provides a periscope camera module, including: a light turning component, including: a first mounting carrier and a light turning element mounted on the first mounting carrier; The zoom lens group on the light turning path of the turning component includes: a fixed part, a zoom part and a focusing part, wherein the zoom lens group is provided with an optical axis; the photosensitive component located on the light-transmitting path of the zoom lens group, It includes: a circuit board and a photosensitive chip electrically connected to the circuit board; and a driving assembly, including a first driving carrier, a second driving carrier, a first driving module, a second driving module and a third driving module; wherein, the The zoom portion is mounted on the first driving carrier, the focusing portion is mounted on the second driving carrier, and the first driving module is configured to drive the first driving carrier to drive the zoom portion along the moving in the direction set by the optical axis, the second driving module is configured to drive the second driving carrier to drive the focusing part to move along the direction set by the optical axis, so as to pass the first A driving module and the second driving module move the zooming part and the focusing part respectively to perform optical zooming; wherein, the third driving module is configured to drive the photosensitive component in a direction perpendicular to the optical axis In-plane movement and/or driving of the light turning assembly to rotate for optical image stabilization. Particularly, piezoelectric actuators are used in at least part of the driving modules (ie, in the first driving module, the second driving module and the third driving module) of the variable-focus periscope camera module As a driver to provide enough driving force and relatively better driving performance. In addition, a reasonable layout scheme is adopted to arrange the piezoelectric actuator in the variable-focus periscope camera module to meet the design requirements of the variable-focus periscope camera module in terms of function, structure and size. .
这样，通过以能够提供更大驱动力的压电致动器为基础的潜望式摄像模组的整体结构配置，将压电致动器作为需要移动的变焦部分和/或对焦部分的驱动元件，可以驱动重量更大的潜望式摄像模组的光学组件，也就是，重量远大于100毫克，例如直到重量超过1克的光学组件。并且，即使压电致动器单次形变所提供的行程有限，也可以通过叠加多次形变提供的行程的方式，来实现待移动的光学组件的较长距离的移动，且压电致动器单次形变加上恢复的时间很短，完全可以满足变焦时间上的需要。并且，所述压电致动器还可以作为需要移动的光转折组件和/或感光组件的驱动元件，以驱动所述光转折组件和/或所述感光组件进行光学防抖。In this way, through the overall structural configuration of the periscope camera module based on the piezoelectric actuator that can provide a larger driving force, the piezoelectric actuator is used as the driving element of the zoom part and/or the focus part that needs to be moved , it is possible to drive optical components of a periscope camera module that weighs much more than 100 mg, eg, up to a weight of more than 1 gram. Moreover, even if the stroke provided by a single deformation of the piezoelectric actuator is limited, a longer distance movement of the optical component to be moved can be realized by stacking the strokes provided by multiple deformations, and the piezoelectric actuator The single deformation plus the recovery time is very short, which can fully meet the needs of the zoom time. In addition, the piezoelectric actuator can also be used as a driving element of the light-reflecting assembly and/or the photosensitive assembly that needs to be moved, so as to drive the light-reflecting assembly and/or the photosensitive assembly to perform optical anti-shake.
并且，本领域技术人员可以理解的是，虽然在本申请实施例中，以压电致动器为例进行了说明，根据本申请实施例的潜望式摄像模组的技术方案也可以等效地应用于压电致动器以外的其它可以提供更大驱动力的致动器，本申请并不意在对此进行任何限制。In addition, those skilled in the art can understand that, although the piezoelectric actuator is used as an example for description in the embodiments of the present application, the technical solutions of the periscope camera module according to the embodiments of the present application can also be equivalent It can be applied to other actuators other than piezoelectric actuators that can provide a larger driving force, and this application does not intend to impose any limitation on this.
示例性潜望式摄像模组Exemplary periscope camera module
图1图示了根据本申请实施例的潜望式摄像模组的示意图。如图1所示，根据本申请实施例的所述潜望式摄像模组，包括：壳体760、光转折组件710、变焦透镜组720、感光组件730和驱动组件740。FIG. 1 illustrates a schematic diagram of a periscope camera module according to an embodiment of the present application. As shown in FIG. 1 , the periscope camera module according to the embodiment of the present application includes: a casing 760 , a light turning component 710 , a zoom lens group 720 , a photosensitive component 730 and a driving component 740 .
相应地，如图1和图2所示，在本申请实施例中，所述光转折组件710，包括第一安装载体712和安装于所述第一安装载体712的光转折元件711，其中，所述光转折元件711用于接收来自被摄目标的成像光线，并将该成像光线转折至所述变焦透镜组720。在该实施例中，所述光转折元件711被配置为将来自被摄目标的成像光线进行90°的转折，以使得所述潜望式摄像模组的整体高度尺寸可得以缩减。这里，考虑到制造公差，在实际工作过程中，所述光转折元件711对成像光线进行转折的角度可能存在1°以内的误差，对此，本领域普通技术人员应可以理解。Correspondingly, as shown in FIG. 1 and FIG. 2 , in the embodiment of the present application, the light deflection assembly 710 includes a first mounting carrier 712 and a light deflection element 711 mounted on the first mounting carrier 712 , wherein, The light redirecting element 711 is used for receiving the imaging light from the photographed object, and redirecting the imaging light to the zoom lens group 720 . In this embodiment, the light turning element 711 is configured to turn the imaging light from the photographed object by 90°, so that the overall height dimension of the periscope camera module can be reduced. Here, considering the manufacturing tolerance, in the actual working process, the angle of the light turning element 711 turning the imaging light may have an error within 1°, which should be understood by those of ordinary skill in the art.
在本申请的具体示例中，所述光转折元件711可被实施为反射镜(例如，平面反射镜)，或者，光转折棱镜(例如，三棱镜)，其可通过黏着剂附着于所述第一安装载体712的安装面上。例如，当所述光转折元件711被实施为光转折棱镜时，所述光转折棱镜的光入射面与其光出射面相互垂直且所述光转折棱镜的光反射面与所述光入射面和所述光出射面成45°角倾斜，这样，当成像光线以垂直于所述光入射面的方式进入所述光转折棱镜后，该成像光线能够在所述光反射面处发生90°转折，以垂直于所述光出射面的方式从所述光出射面输出。In the specific example of the present application, the light turning element 711 may be implemented as a mirror (eg, a flat mirror), or a light turning prism (eg, a triangular prism), which may be attached to the first The mounting surface of the mounting carrier 712 . For example, when the light turning element 711 is implemented as a light turning prism, the light incident face of the light turning prism and its light exit face are perpendicular to each other, and the light reflecting face of the light turning prism is perpendicular to the light incident face and the light turning face. The light exit surface is inclined at an angle of 45°, so that when the imaging light enters the light turning prism in a manner perpendicular to the light incident surface, the imaging light can be turned 90° at the light reflecting surface, so that output from the light exit surface in a manner perpendicular to the light exit surface.
当然，在本申请其他示例中，所述光转折元件711还可以被实施为其他类型的光学元件，对此，并不为本申请所局限。并且，在本申请实施例中，所述潜望式摄像模组还可以包括更多数量的光转折元件710，其一个原因在于：引入所述光转折元件711的一个作用为：对成像光线进行转折，以对具有较长光学总长(TTL：Total Track Length)的所述潜望式摄像模组的光学系统能够进行结构维度上的折叠。相应地，当所述潜望式摄像模组的光学总长(TTL)过长时，可设置更多数量的光转折元件710，以满足所述潜望式摄像模组的尺寸要求，例如可以设置所述光转折元件711于所述潜望式摄像模组的像侧或者所述变焦透镜组720的两个透镜部分之间。Of course, in other examples of the present application, the light deflection element 711 may also be implemented as other types of optical elements, which are not limited by the present application. In addition, in the embodiment of the present application, the periscope camera module may further include a larger number of light-reflecting elements 710 , one of the reasons is that one of the functions of introducing the light-reflecting elements 711 is to perform imaging on the imaging light. Turning, so that the optical system of the periscope camera module with a longer total optical length (TTL: Total Track Length) can be folded in the structural dimension. Correspondingly, when the total optical length (TTL) of the periscope camera module is too long, a larger number of light turning elements 710 can be provided to meet the size requirements of the periscope camera module. The light turning element 711 is located on the image side of the periscope camera module or between two lens portions of the zoom lens group 720 .
如图1和图2所示，在本申请实施例中，所述变焦透镜组720对应于所述光转折元件711，用于接收来自所述光转折元件711的成像光线并以该成像光线进行汇聚或发散。相应地，如图2所示，所述变焦透镜组720沿着其 所设定的光轴方向，包括：固定部分721、变焦部分722和对焦部分723，其中，所述固定部分721具有预定的安装位置，所述变焦部分722和所述对焦部分723能够在所述驱动组件740的作用下相对于所述固定部分721的位置分别进行调整，从而实现所述潜望式摄像模组的光学性能的调整，包括但不限于光学对焦和光学变焦功能。例如，可通过所述驱动组件740调整所述变焦部分722和所述对焦部分723，以使得所述潜望式摄像模组的变焦透镜组720的焦距被调整，从而能够清楚地拍摄不同距离的被摄对象。As shown in FIG. 1 and FIG. 2 , in the embodiment of the present application, the zoom lens group 720 corresponds to the light refraction element 711 , and is used to receive the imaging light from the light refraction element 711 and use the imaging light to perform converge or diverge. Correspondingly, as shown in FIG. 2 , the zoom lens group 720 includes a fixed part 721 , a zoom part 722 and a focus part 723 along the set optical axis direction, wherein the fixed part 721 has a predetermined In the installation position, the zooming part 722 and the focusing part 723 can be adjusted respectively relative to the position of the fixing part 721 under the action of the driving assembly 740, so as to realize the optical performance of the periscope camera module adjustments, including but not limited to optical focus and optical zoom functions. For example, the zoom part 722 and the focus part 723 can be adjusted by the drive assembly 740, so that the focal length of the zoom lens group 720 of the periscope camera module can be adjusted, so as to clearly capture images of different distances. subject.
在本申请实施例中，所述固定部分721包括第一镜筒和被容置于所述第一镜筒内的至少一光学透镜。并且，所述固定部分721适于被固定于所述驱动组件740中非移动部分，以使得所述固定部分721在所述变焦透镜组720中位置保持恒定。In the embodiment of the present application, the fixing portion 721 includes a first lens barrel and at least one optical lens accommodated in the first lens barrel. Moreover, the fixed part 721 is adapted to be fixed to the non-moving part of the driving assembly 740 , so that the position of the fixed part 721 in the zoom lens group 720 remains constant.
值得一提的是，在本申请其他示例中，所述固定部分721也可以不设有所述第一镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述固定部分721可被实施为“裸镜头”。It is worth mentioning that in other examples of the present application, the fixing portion 721 may not be provided with the first lens barrel, but only includes at least one optical lens, for example, it only includes a plurality of optical pieces that are fitted with each other lens. That is, in other examples of the application, the fixed portion 721 may be implemented as a "bare lens".
所述变焦部分722包括第二镜筒和被容置于所述第二镜筒内的至少一光学透镜，其中，所述变焦部分722适于被所述驱动组件740所驱动以沿着所述变焦透镜组720所设定的光轴方向上进行移动，从而实现所述潜望式摄像模组的光学变焦功能，以使得所述潜望式摄像模组能够实现对不同距离的被摄目标的清晰拍摄。The zoom portion 722 includes a second lens barrel and at least one optical lens accommodated in the second lens barrel, wherein the zoom portion 722 is adapted to be driven by the driving assembly 740 to move along the The zoom lens group 720 moves in the direction of the optical axis, so as to realize the optical zoom function of the periscope camera module, so that the periscope camera module can realize the detection of objects at different distances. Shoot clearly.
值得一提的是，在本申请其他示例中，所述变焦部分722也可以不设有所述第二镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述变焦部分722也可被实施为“裸镜头”。It is worth mentioning that, in other examples of the present application, the zoom portion 722 may not be provided with the second lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that are fitted with each other. lens. That is, in other examples of the application, the zoom portion 722 may also be implemented as a "bare lens".
所述对焦部分723包括第三镜筒和被容置于所述第三镜筒内的至少一光学透镜，其中，所述对焦部分723适于被所述驱动组件740所驱动以沿着所述变焦透镜组720所设定的光轴方向上进行移动，从而实现所述潜望式摄像模组的对焦功能。更明确地，通过驱动所述对焦部分723所实现的光学对焦能够补偿因移动所述变焦部分722而导致的焦点偏移，从而补偿所述潜望式摄像模组的成像性能，使得其成像质量满足预设要求。The focusing portion 723 includes a third lens barrel and at least one optical lens accommodated in the third lens barrel, wherein the focusing portion 723 is adapted to be driven by the driving assembly 740 to move along the The zoom lens group 720 moves in the direction of the optical axis, so as to realize the focusing function of the periscope camera module. More specifically, the optical focusing achieved by driving the focusing portion 723 can compensate for the focus shift caused by moving the zooming portion 722, thereby compensating the imaging performance of the periscope camera module and improving the imaging quality. meet preset requirements.
值得一提的是，在本申请其他示例中，所述对焦部分723也可以不设有 所述第三镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述对焦部分723也可被实施为“裸镜头”。It is worth mentioning that, in other examples of the present application, the focusing portion 723 may not be provided with the third lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that are fitted with each other. lens. That is, in other examples of the application, the focusing portion 723 may also be implemented as a "bare lens".
更具体地，如图2所示，在本申请实施例中，所述变焦透镜组720的固定部分721、所述变焦部分722和所述对焦部分723被依次地设置(也就是，在所述变焦透镜组720中，所述变焦部分722位于所述固定部分721和所述对焦部分723之间)，即，来自所述光转折元件711的成像光线在穿过所述变焦透镜组720的过程中，其将首先透过所述固定部分721、再透过所述变焦部分722，然后，再穿过所述对焦部分723。More specifically, as shown in FIG. 2 , in the embodiment of the present application, the fixed part 721 , the zoom part 722 and the focus part 723 of the zoom lens group 720 are arranged in sequence (that is, in the In the zoom lens group 720 , the zoom portion 722 is located between the fixed portion 721 and the focusing portion 723 ), that is, the imaging light from the light-refracting element 711 passes through the zoom lens group 720 during the process Among them, it will first pass through the fixed part 721 , then through the zooming part 722 , and then pass through the focusing part 723 .
当然，在本申请的其他示例中，也可以调整所述固定部分721、所述变焦部分722和所述对焦部分723之间的相对位置关系，例如，将所述固定部分721设置于所述变焦部分722和所述对焦部分723之间，再如，将所述对焦部分723设置于所述变焦部分722和所述固定部分721之间。应可以理解，在本申请实施例中，所述固定部分721、所述变焦部分722和所述对焦部分723之间的相对位置关系可根据所述潜望式摄像模组的光学设计要求和结构设计要求进行调整。Of course, in other examples of the present application, the relative positional relationship between the fixed part 721 , the zooming part 722 and the focusing part 723 can also be adjusted, for example, the fixed part 721 is set on the zooming part Part 722 and the focusing part 723 , for another example, the focusing part 723 is provided between the zooming part 722 and the fixing part 721 . It should be understood that, in the embodiment of the present application, the relative positional relationship between the fixed part 721 , the zoom part 722 and the focusing part 723 may be based on the optical design requirements and structure of the periscope camera module Design requires adjustments.
特别地，在本申请实施例中，考虑到所述潜望式摄像模组的结构设计(更明确地，为了利于所述驱动组件740的布设)，优选地，所述对焦部分723和所述变焦部分722相邻地设置。也就是，根据本申请实施例的所述变焦透镜组720中各个部分的位置，优选地被配置为：所述变焦部分722位于所述固定部分721和所述对焦部分723之间，或者，所述对焦部分723位于所述固定部分721和所述变焦部分722之间。应可以理解，所述变焦部分722和所述对焦部分723是所述变焦透镜组720中需要移动的部分，因此，将所述对焦部分723和所述变焦部分722相邻地设置有利于布置所述驱动组件740，关于此部分将在所述驱动组件740的具体描述中展开。In particular, in the embodiment of the present application, considering the structural design of the periscope camera module (more specifically, in order to facilitate the arrangement of the driving assembly 740 ), preferably, the focusing portion 723 and the The zoom sections 722 are arranged adjacently. That is, the position of each part in the zoom lens group 720 according to the embodiment of the present application is preferably configured such that the zoom part 722 is located between the fixed part 721 and the focus part 723, or, all the The focusing portion 723 is located between the fixing portion 721 and the zooming portion 722 . It should be understood that the zooming part 722 and the focusing part 723 are parts of the zoom lens group 720 that need to be moved. Therefore, arranging the focusing part 723 and the zooming part 722 adjacent to each other is conducive to arranging all the The driving assembly 740 is described, and this part will be expanded in the detailed description of the driving assembly 740 .
值得一提的是，虽然在如图2所示意的示例中以所述变焦透镜组720包括一个所述固定部分721、一个所述变焦部分722和一个所述对焦部分723为示例，但是本领域普通技术人员应知晓，在本申请其他示例中，所述固定部分721、所述变焦部分722和所述对焦部分723的具体数量选择，并不为本申请所局限，其可根据所述潜望式摄像模组的光学设计要求进行调整。It is worth mentioning that, although in the example shown in FIG. 2 , the zoom lens group 720 includes one of the fixing parts 721 , one of the zooming parts 722 and one of the focusing parts 723 as an example, but in the art Those of ordinary skill should know that in other examples of the present application, the specific number of the fixed portion 721, the zoom portion 722 and the focusing portion 723 is not limited by the present application, and can be selected according to the periscope The optical design of the camera module needs to be adjusted.
成像光线穿过所述变焦透镜组720后会沿着其传播路径抵至所述感光组件730，如图1和图2所示，在本申请实施例中，所述感光组件730对应于所述变焦透镜组720，用于接收来自所述变焦透镜组720的成像光线并进行成像，其中，所述感光组件730包括线路板731、电连接于所述线路板731的感光芯片732和被保持于所述感光芯片732的感光路径上的滤光元件733。更具体地，在如图1和图2所示意的示例中，所述感光组件730，进一步包括设置于所述线路板731的支架734，其中，所述滤光元件733被安装于所述支架734上以被保持于所述感光芯片732的感光路径上。After the imaging light passes through the zoom lens group 720, it will reach the photosensitive component 730 along its propagation path. As shown in FIG. 1 and FIG. 2, in the embodiment of the present application, the photosensitive component 730 corresponds to the The zoom lens group 720 is used to receive the imaging light from the zoom lens group 720 and perform imaging, wherein the photosensitive component 730 includes a circuit board 731, a photosensitive chip 732 electrically connected to the circuit board 731, and a photosensitive chip 732 held on the circuit board 731. The filter element 733 on the photosensitive path of the photosensitive chip 732 . More specifically, in the example shown in FIG. 1 and FIG. 2 , the photosensitive assembly 730 further includes a bracket 734 disposed on the circuit board 731 , wherein the filter element 733 is mounted on the bracket 734 to be held on the photosensitive path of the photosensitive chip 732 .
值得一提的是，在本申请其他示例中，所述滤光元件733被保持于所述感光芯片732的感光路径上的具体实施方式并不为本申请所局限，例如，所述滤光元件733可被实施为滤波膜并涂覆于所述变焦透镜组720的某一光学透镜的表面，以起到滤光的效果，再如，所述感光组件730可进一步包括安装于所述支架734的滤光元件支架(未有图示意)，其中，所述滤光元件733以被安装于所述滤光元件支架的方式被保持于所述感光芯片732的感光路径上。It is worth mentioning that, in other examples of the present application, the specific implementation of the filter element 733 held on the light-sensing path of the photosensitive chip 732 is not limited by the present application. For example, the filter element 733 can be implemented as a filter film and coated on the surface of a certain optical lens of the zoom lens group 720 to play a filtering effect. For another example, the photosensitive component 730 can further include a bracket 734 mounted on the The filter element holder (not shown), wherein the filter element 733 is held on the photosensitive path of the photosensitive chip 732 by being mounted on the filter element holder.
为了对进入所述感光组件730的成像光线进行限制，在本申请一些示例中，所述潜望式摄像模组，进一步包括设置于所述感光组件730的感光路径上的光阻挡元件750，其中，所述光阻挡元件750能够至少部分地阻挡光线透过，以尽可能地减少杂散光对所述潜望式摄像模组的成像质量的影响。In order to limit the imaging light entering the photosensitive assembly 730, in some examples of the present application, the periscope camera module further includes a light blocking element 750 disposed on the photosensitive path of the photosensitive assembly 730, wherein , the light blocking element 750 can at least partially block the transmission of light, so as to reduce the influence of stray light on the imaging quality of the periscope camera module as much as possible.
图3图示了根据本申请实施例的所述潜望式摄像模组的光阻挡元件的一个具体示例的示意图。如图3所示，在该具体示例中，所述光阻挡元件750被安装于所述光转折元件711的出光面，其中，所述光阻挡元件750具有透光孔7500，其适于使成像光线中的有效部分透过并阻挡至少部分成像光线中的杂散光。优选地，所述透光孔7500为圆形孔，以配合所述变焦透镜组720的圆形有效光学区，尽可能地减少杂散光对成像质量的影响。FIG. 3 is a schematic diagram illustrating a specific example of a light blocking element of the periscope camera module according to an embodiment of the present application. As shown in FIG. 3 , in this specific example, the light blocking element 750 is installed on the light exit surface of the light diverting element 711 , wherein the light blocking element 750 has a light-transmitting hole 7500 , which is suitable for imaging An effective portion of the light transmits and blocks at least a portion of the stray light in the imaged light. Preferably, the light-transmitting hole 7500 is a circular hole, so as to match the circular effective optical area of the zoom lens group 720 and reduce the influence of stray light on the imaging quality as much as possible.
值得一提的是，在本申请其他示例中，所述光阻挡元件750可被设置于所述光转折元件711的其他位置，例如，所述光转折元件711的光入射面或者光反射面，对此，并不为本申请所局限。还值得一提的是，在本申请其他示例中，所述光阻挡元件750也可以作为一个独立的部件被设置于所述感光组件730的感光路径上，例如，作为一个独立的部件被设置于所述光转折元件711和所述变焦透镜组720之间，再如，作为一个独立的部分被设置 于所述变焦透镜组720和所述感光组件730之间，对此，并不为本申请所局限。It is worth mentioning that in other examples of the present application, the light blocking element 750 may be disposed at other positions of the light redirecting element 711 , for example, the light incident surface or the light reflecting surface of the light redirecting element 711 , This is not limited by this application. It is also worth mentioning that, in other examples of the present application, the light blocking element 750 may also be disposed on the photosensitive path of the photosensitive assembly 730 as an independent component, for example, disposed as an independent component on the photosensitive path of the photosensitive assembly 730 . For another example, between the light refraction element 711 and the zoom lens group 720, as an independent part, it is arranged between the zoom lens group 720 and the photosensitive component 730, which is not the subject of this application. limited.
在本申请实施例中，所述潜望式摄像模组的所述光转折组件710、所述变焦透镜组720和所述驱动组件740被设置于其壳体760所形成的收容空间内，以使得所述潜望式摄像模组具有相对紧凑的结构配置。具体地，在该实施例中，所述壳体760具有第一收容腔761和第二收容腔762，其中，所述光转折组件710被收容于所述第一收容腔761内，且所述驱动组件740和所述变焦透镜组720被收容于所述第二收容腔762内。In the embodiment of the present application, the light deflection component 710 , the zoom lens group 720 and the driving component 740 of the periscope camera module are arranged in the receiving space formed by the casing 760 thereof, so as to The periscope camera module has a relatively compact structure configuration. Specifically, in this embodiment, the housing 760 has a first accommodating cavity 761 and a second accommodating cavity 762 , wherein the light turning assembly 710 is accommodated in the first accommodating cavity 761 , and the The driving assembly 740 and the zoom lens group 720 are accommodated in the second accommodating cavity 762 .
相应地，所述壳体760的底表面形成用于安装所述光转折组件710、所述变焦透镜组720和所述驱动组件740的安装基面，也就是，所述光转折组件710、所述变焦透镜组720和所述驱动组件740具有同一安装基准面，以利于提高安装之后的所述光转折组件710、所述变焦透镜组720和所述驱动组件740之间的相对位置精度。Correspondingly, the bottom surface of the housing 760 forms a mounting base for installing the light-reflecting assembly 710, the zoom lens group 720 and the driving assembly 740, that is, the light-refracting assembly 710, the The zoom lens group 720 and the driving assembly 740 have the same installation reference surface, so as to improve the relative positional accuracy between the light refraction assembly 710 , the zoom lens group 720 and the driving assembly 740 after installation.
如前所述，为了满足越来越广泛的市场需求，高像素、大芯片、小尺寸是现有摄像模组不可逆转的发展趋势。随着所述感光芯片732朝着高像素和大芯片的方向发展，与所述感光芯片732适配的所述变焦透镜组720和所述光转折组件710的尺寸和重点也逐渐增大，这给用于驱动所述变焦透镜组720和/或所述光转折组件710和/或所述感光芯片732的驱动组件740提出了新的技术要求。As mentioned above, in order to meet more and more extensive market demands, high pixel, large chip, and small size are the irreversible development trends of existing camera modules. As the photosensitive chip 732 develops in the direction of high pixels and large chips, the size and focus of the zoom lens group 720 and the light turning assembly 710 adapted to the photosensitive chip 732 also increase gradually. New technical requirements are put forward for the driving component 740 for driving the zoom lens group 720 and/or the light turning component 710 and/or the photosensitive chip 732 .
新的技术要求主要集中于两个方面：相对更大的驱动力，以及，更优的驱动性能(具体地包括：更高精度的驱动控制和更长的驱动行程)。并且，除了需要寻找满足新技术要求的驱动器以外，在选择新驱动器时还需要考虑所选择的驱动器能够适应于当下摄像模组轻型化和薄型化的发展趋势。The new technical requirements mainly focus on two aspects: relatively larger driving force, and better driving performance (specifically including: higher-precision driving control and longer driving stroke). Moreover, in addition to finding a driver that meets the requirements of new technologies, it is also necessary to consider whether the selected driver can adapt to the current development trend of lightening and thinning of camera modules when selecting a new driver.
特别地，在本申请实施例中，所述潜望式摄像模组的部分驱动机构中采用压电致动器作为驱动器以提供足够大的驱动力和相对更佳的驱动性能。并且，采用合理的布设方案将压电致动器布设于所述潜望式摄像模组中，以满足所述可变焦潜望式摄像模组在功能、结构和尺寸等方面的设计要求。In particular, in the embodiment of the present application, a piezoelectric actuator is used as a driver in part of the driving mechanism of the periscope camera module to provide a sufficiently large driving force and relatively better driving performance. In addition, a reasonable arrangement scheme is adopted to arrange the piezoelectric actuator in the periscope camera module, so as to meet the design requirements of the variable-focus periscope camera module in terms of function, structure and size.
具体地，如图1和图2所示，在本申请实施例中，所述驱动组件740，包括：第一驱动载体744、第二驱动载体745、第一驱动模块742、第二驱动模块743和第三驱动模块747，所述变焦部分722被安装于所述第一驱 动载体744内，所述对焦部分723被安装于所述第二驱动载体745内，其中，所述第一驱动模块742被配置为驱动所述第一驱动载体744以带动所述变焦部分722沿着该光轴所设定的方向移动，所述第二驱动模块743被配置为驱动所述第二驱动载体745以带动所述对焦部分723沿着该光轴所设定的方向移动，以通过所述第一驱动模块742和所述第二驱动模块743分别移动所述变焦部分722和所述对焦部分723来进行光学变焦。相应地，所述第三驱动模块747被配置为驱动所述感光组件730在垂直于所述光轴的平面内移动和/或驱动所述光转折组件710进行旋转，以进行光学防抖。Specifically, as shown in FIG. 1 and FIG. 2 , in this embodiment of the present application, the driving assembly 740 includes: a first driving carrier 744 , a second driving carrier 745 , a first driving module 742 , and a second driving module 743 and a third driving module 747, the zoom part 722 is installed in the first driving carrier 744, the focusing part 723 is installed in the second driving carrier 745, wherein the first driving module 742 is configured to drive the first driving carrier 744 to drive the zoom portion 722 to move along the direction set by the optical axis, and the second driving module 743 is configured to drive the second driving carrier 745 to drive The focusing portion 723 is moved along the direction set by the optical axis to perform the optical operation by moving the zooming portion 722 and the focusing portion 723 by the first driving module 742 and the second driving module 743, respectively. zoom. Correspondingly, the third driving module 747 is configured to drive the photosensitive assembly 730 to move in a plane perpendicular to the optical axis and/or drive the light turning assembly 710 to rotate, so as to perform optical image stabilization.
相应地，在该实施例中，如图4所示，所述第一驱动载体744包括第一载体底座7441和一体地自所述第一载体底座7441分别向上延伸的第一延长臂7442和第二延长臂7443，以在所述第一载体底座7441、所述第一延长臂7442和所述第二延长臂7443之间形成用于安装所述变焦部分722的第一安装腔7444和连通于所述第一安装腔7444的第一开口7445，其中，所述变焦部分722适于所述第一开口7445被安装入所述第一安装腔7444内。也就是，在该实施例中，所述第一驱动载体744具有U型结构，以适于所述变焦部分722从所述U型结构的第一开口7445被安装于所述第一安装腔7444内。Correspondingly, in this embodiment, as shown in FIG. 4 , the first driving carrier 744 includes a first carrier base 7441 and a first extending arm 7442 and a first extending arm 7442 and a first extending arm 7442 integrally extending upward from the first carrier base 7441 , respectively. Two extension arms 7443 to form a first installation cavity 7444 for installing the zoom part 722 between the first carrier base 7441 , the first extension arm 7442 and the second extension arm 7443 and communicate with The first opening 7445 of the first installation cavity 7444, wherein the zoom portion 722 is suitable for the first opening 7445 to be installed into the first installation cavity 7444. That is, in this embodiment, the first driving carrier 744 has a U-shaped structure, so that the zoom portion 722 can be installed in the first mounting cavity 7444 from the first opening 7445 of the U-shaped structure. Inside.
相应地，在该实施例中，如图4所示，所述第二驱动载体745包括第二载体底座7451和一体地自所述第二载体底座7451分别向上延伸的第三延长臂7452和第四延长臂7453，以在所述第二载体底座7451、所述第三延长臂7452和所述第四延长臂7453之间形成用于安装所述对焦部分723的第二安装腔7454和连通于所述第二安装腔7454的第二开口7455，其中，所述对焦部分723适于从所述第二开口7455被安装入所述第二安装腔7454内。也就是，在该实施例中，所述第二驱动载体745同样具有U型结构，以适于所述对焦部分723从所述U型结构的第二开口7455被安装于所述第二安装腔7454内。Correspondingly, in this embodiment, as shown in FIG. 4 , the second driving carrier 745 includes a second carrier base 7451 and a third extending arm 7452 and a third extending arm 7452 integrally extending upward from the second carrier base 7451 , respectively. Four extending arms 7453 to form a second mounting cavity 7454 for mounting the focusing portion 723 between the second carrier base 7451 , the third extending arm 7452 and the fourth extending arm 7453 and communicate with The second opening 7455 of the second installation cavity 7454 , wherein the focusing portion 723 is adapted to be installed into the second installation cavity 7454 from the second opening 7455 . That is, in this embodiment, the second driving carrier 745 also has a U-shaped structure, so that the focusing portion 723 is installed in the second mounting cavity from the second opening 7455 of the U-shaped structure. within 7454.
相应地，如图1和图2所示，所述第一驱动模块742包括至少一第一驱动元件7421，所述第二驱动模块743包括至少一第二驱动元件7431，其中，所述第一驱动元件7421和所述第二驱动元件7431被实施为压电致动器，以提供用于移动所述对焦部分723和所述变焦部分722的驱动力。Correspondingly, as shown in FIG. 1 and FIG. 2 , the first driving module 742 includes at least one first driving element 7421 , and the second driving module 743 includes at least one second driving element 7431 , wherein the first driving element 7431 The driving element 7421 and the second driving element 7431 are implemented as piezoelectric actuators to provide driving force for moving the focusing portion 723 and the zooming portion 722 .
图5A和图5B图示了根据本申请实施例的所述潜望式摄像模组的压电 致动器的示意图。如图5A和图5B所示，在本申请实施例中，所述压电致动器7100，包括：压电主动部7110、可传动地耦接于所述压电主动部7110的从动轴7120，以及，与所述从动轴7120紧配的驱动部7130，其中，所述驱动部7130在所述压电主动部7110和所述从动轴7120的作用下被配置为驱动所述第一驱动载体744或所述第二驱动载体745沿着所述光轴所设定的方向移动。5A and 5B illustrate schematic diagrams of a piezoelectric actuator of the periscope camera module according to an embodiment of the present application. As shown in FIG. 5A and FIG. 5B , in the embodiment of the present application, the piezoelectric actuator 7100 includes: a piezoelectric active part 7110 and a driven shaft drivably coupled to the piezoelectric active part 7110 7120, and a driving part 7130 tightly matched with the driven shaft 7120, wherein the driving part 7130 is configured to drive the first driven part 7110 and the driven shaft 7120 under the action of the piezoelectric active part 7110 and the driven shaft 7120. A driving carrier 744 or the second driving carrier 745 moves along the direction set by the optical axis.
如图5A和图5B所示，所述压电主动部7110包括电极板7111和叠置于所述电极板7111的至少一压电基板。所述压电基板是具有逆压电效应并且根据极化方向和电场方向收缩或膨胀的基板，例如，其可以通过在单晶或者多晶陶瓷、聚合物等在厚度方向上使用基板极化来制成并使用。这里，逆压电效应是指在电介质的极化方向施加电场，电介质在产生电势差时会发生机械变形。As shown in FIG. 5A and FIG. 5B , the piezoelectric active part 7110 includes an electrode plate 7111 and at least one piezoelectric substrate stacked on the electrode plate 7111 . The piezoelectric substrate is a substrate that has an inverse piezoelectric effect and shrinks or expands according to the polarization direction and the electric field direction, for example, it can be formed by using substrate polarization in the thickness direction of single crystal or polycrystalline ceramics, polymers, etc. made and used. Here, the inverse piezoelectric effect means that an electric field is applied in the polarization direction of the dielectric, and the dielectric undergoes mechanical deformation when a potential difference is generated.
更具体地，在如图5A和图5B所示意的示例中，所述至少一压电基板，包括第一压电基板7112和第二压电基板7113，所述电极板7111被夹设于所述第一压电基板7112和所述第二压电基板7113之间。并且，在该示例中，所述压电主动部7110进一步包括分别形成于所述第一压电基板7112的上表面和下表面的电极层7115，以及，分别形成于所述第二压电基板7113的上表面和下表面的电极层7115，以通过所述电极层7115和所述电极板7111为所述第一压电基板7112和所述第二压电基板7113提供脉冲电压。More specifically, in the example shown in FIG. 5A and FIG. 5B , the at least one piezoelectric substrate includes a first piezoelectric substrate 7112 and a second piezoelectric substrate 7113, and the electrode plate 7111 is sandwiched between the between the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 . In addition, in this example, the piezoelectric active part 7110 further includes electrode layers 7115 formed on the upper and lower surfaces of the first piezoelectric substrate 7112, respectively, and electrode layers 7115 formed on the second piezoelectric substrate, respectively Electrode layers 7115 on the upper and lower surfaces of 7113 to provide pulse voltage to the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 through the electrode layer 7115 and the electrode plate 7111 .
在该示例中，所述电极板7111可以由带有一定弹性的板状元件构成，例如，带有一定弹性的金属板构成。如图5A和图5B所示，所述压电主动部7110，进一步包括与所述电极板7111电连接的至少一电导通部位7114，例如，所述至少一电导通部位7114可通过焊接的方式焊接于所述电极板7111，或者是所述至少一电导通部位7114与所述电极板7111一体形成。值得一提的是，当所述电导通部位7114的数量为多个时，优选地，所述多个电导通部位7114对称地分布于所述电极板7111的外表面。In this example, the electrode plate 7111 may be formed of a plate-like element with a certain elasticity, for example, a metal plate with a certain elasticity. As shown in FIG. 5A and FIG. 5B , the piezoelectric active part 7110 further includes at least one electrical conduction part 7114 electrically connected to the electrode plate 7111 , for example, the at least one electrical conduction part 7114 can be welded It is welded to the electrode plate 7111 , or the at least one electrical conduction part 7114 is integrally formed with the electrode plate 7111 . It is worth mentioning that when the number of the electrical conduction parts 7114 is multiple, preferably, the multiple electrical conduction parts 7114 are symmetrically distributed on the outer surface of the electrode plate 7111 .
在该示例中，所述第一压电基板7112和所述第二压电基板7113分别通过所述电极层7115被附着于所述电极板7111的第一侧表面和与所述第一侧表面相对的第二侧表面。例如，在该示例中，所述第一压电基板7112和所述第二压电基板7113可以与所述电极板7111以相互面与面啮合的方 式固定，或者，所述第一压电基板7112和所述第二压电基板7113通过导电银胶被附着于所述电极板7111。In this example, the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 are respectively attached to the first side surface of the electrode plate 7111 and to the first side surface through the electrode layer 7115 the opposite second side surface. For example, in this example, the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 may be fixed with the electrode plate 7111 in a surface-to-surface engagement, or the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 are attached to the electrode plate 7111 by conductive silver glue.
优选地，在该示例中，所述第一压电基板7112和所述第二压电基板7113的形状的大小与所述电极板7111相近或者相一致，从而使得所述压电主动部7110具有更优的振动效率。在该具体示例中，所述第一压电基板7112、所述第二压电基板7113和所述电极板7111为圆形板。Preferably, in this example, the shape and size of the first piezoelectric substrate 7112 and the second piezoelectric substrate 7113 are similar to or consistent with the electrode plate 7111 , so that the piezoelectric active part 7110 has Better vibration efficiency. In this specific example, the first piezoelectric substrate 7112, the second piezoelectric substrate 7113 and the electrode plate 7111 are circular plates.
如图5A和图5B所示，所述从动轴7120被固定于所述压电主动部7110，例如，通过黏着剂附着于所述压电主动部7110的中心。具体地，所述从动轴7120可通过黏着剂被附着于所述第一压电基板7112的外表面的电极层7115上，或者，通过黏着剂被嵌套地附着于所述第一压电基板7112的外表面的电极层7115的中心孔内，或者，所述第一压电基板7112具有一中心孔，所述从动轴7120进一步被嵌合于所述第一压电基板7112的中心孔内，或者，所述压电主动部7110具有贯穿于其上下表面的中心孔，所述从动轴7120通过黏着剂被嵌合于所述压电主动部7110的中心孔内。在具体实施中，所述从动轴7120可被实施为碳棒。并且，在该示例中，所述从动轴7120的截面形状为圆形或者多边形，优选为圆形As shown in FIG. 5A and FIG. 5B , the driven shaft 7120 is fixed to the piezoelectric active part 7110 , for example, attached to the center of the piezoelectric active part 7110 by an adhesive. Specifically, the driven shaft 7120 can be attached to the electrode layer 7115 on the outer surface of the first piezoelectric substrate 7112 through an adhesive, or can be nestedly attached to the first piezoelectric substrate through an adhesive. In the center hole of the electrode layer 7115 on the outer surface of the substrate 7112, or the first piezoelectric substrate 7112 has a center hole, the driven shaft 7120 is further fitted in the center of the first piezoelectric substrate 7112 Alternatively, the piezoelectric active part 7110 has a central hole penetrating through the upper and lower surfaces thereof, and the driven shaft 7120 is fitted into the central hole of the piezoelectric active part 7110 through an adhesive. In a specific implementation, the driven shaft 7120 may be implemented as a carbon rod. In addition, in this example, the cross-sectional shape of the driven shaft 7120 is a circle or a polygon, preferably a circle
如图5A和图5B所示，所述驱动部7130紧配于所述从动轴7120上。在该示例中，所述驱动部7130与所述从动轴7120通过摩擦配合，以使得所述驱动部7130紧配于所述从动轴7120上。更具体地，在该示例中，所述驱动部7130可被实施为夹持所述从动轴7120的夹持机构，其中，所述夹持机构可以是夹持力可调整的夹持机构，或者，部分或全部由弹性材料制成的夹持机构。As shown in FIG. 5A and FIG. 5B , the driving part 7130 is tightly fitted on the driven shaft 7120 . In this example, the driving part 7130 and the driven shaft 7120 are frictionally fitted, so that the driving part 7130 is tightly fitted on the driven shaft 7120 . More specifically, in this example, the driving part 7130 may be implemented as a clamping mechanism for clamping the driven shaft 7120, wherein the clamping mechanism may be a clamping mechanism with adjustable clamping force, Alternatively, a gripping mechanism made partly or entirely of an elastic material.
如图5A和图5B所示，在所述压电主动部7110表面暴露的所述电极层7115电连接于电源控制部位7116的正电极7117，所述电极板7111通过所述电导通部位7114被电连接于所述电源控制部位7116的负电极7118，这样，当所述电源控制部位7116给所述电极层7115和所述电极板7111反复施加脉冲电压时，所述第一压电基板7112和所述第二压电基板7113在逆压电效应的作用下朝着一个方向变形，并在所述电极板7111的弹性作用下快速恢复为平板状。在上述形变过程中，所述从动轴7120在其所设定的轴方向上往返移动，而由于所述驱动部7130与所述从动轴7120之间为摩擦配合，因此，当所述压电主动部7110向着一个方向变形时，所述驱动部7130 和所述从动轴7120共同移动，而当所述压电主动部7110快速地恢复为原状时，所述从动轴7120也逆向移动而所述驱动部7130则由于惯性作用无法跟随所述从动轴7120的动作而未能返回原来的位置，只能停留在所在的位置。因此，在一个形变过程中，所述驱动部7130的位置发生改变，相应地，通过反复施加脉冲电压，可重复上述移动，从而使得所述驱动部7130被移动至目标位置。As shown in FIG. 5A and FIG. 5B , the electrode layer 7115 exposed on the surface of the piezoelectric active part 7110 is electrically connected to the positive electrode 7117 of the power supply control part 7116 , and the electrode plate 7111 is connected to the electric conduction part 7114 through the electric conduction part 7114 . It is electrically connected to the negative electrode 7118 of the power control part 7116, so that when the power control part 7116 repeatedly applies a pulse voltage to the electrode layer 7115 and the electrode plate 7111, the first piezoelectric substrate 7112 and The second piezoelectric substrate 7113 is deformed in one direction under the action of the inverse piezoelectric effect, and quickly returns to a flat shape under the elastic action of the electrode plate 7111 . During the above deformation process, the driven shaft 7120 moves back and forth in the set axial direction, and since the driving part 7130 and the driven shaft 7120 are friction fit, when the pressure When the electro-active part 7110 is deformed in one direction, the driving part 7130 and the driven shaft 7120 move together, and when the piezoelectric active part 7110 quickly returns to its original state, the driven shaft 7120 also moves in the opposite direction On the other hand, the driving part 7130 cannot return to the original position due to the inertial action and cannot follow the action of the driven shaft 7120 , and can only stay at the position where it is. Therefore, in a deformation process, the position of the driving part 7130 changes, and accordingly, by repeatedly applying the pulse voltage, the above-mentioned movement can be repeated, so that the driving part 7130 is moved to the target position.
图6A和图6B图示了根据本申请实施例的所述潜望式摄像模组的压电致动器的一个变形实施的示意图。如图6A和76B所示，在该变形实施中，所述压电致动器7100包括：压电主动部7110、可传动地连接于所述压电主动部7110的压电主动部7110的从动轴7120，以及，可动地设置于所述从动轴7120的驱动部7130，其中，所述驱动部7130在所述压电主动部7110和所述从动轴7120的作用下被配置为驱动第一驱动载体744或所述第二驱动载体745，以带动所述变焦部分722或所述对焦部分723沿着该光轴移动。6A and 6B illustrate schematic diagrams of a variant implementation of the piezoelectric actuator of the periscope camera module according to an embodiment of the present application. As shown in FIGS. 6A and 76B , in this variant implementation, the piezoelectric actuator 7100 includes: a piezoelectric active part 7110 , a slave of the piezoelectric active part 7110 drivably connected to the piezoelectric active part 7110 . The driving shaft 7120, and the driving part 7130 movably arranged on the driven shaft 7120, wherein the driving part 7130 is configured to be under the action of the piezoelectric active part 7110 and the driven shaft 7120 The first driving carrier 744 or the second driving carrier 745 is driven to drive the zooming part 722 or the focusing part 723 to move along the optical axis.
如图6A和76B所示，在该示例中，所述压电主动部7110包括压电元件7111A，所述压电元件7111A具有如图6A中所示意的层叠结构。具体地，如图6A所示，所述压电元件7111A包括多个压电伸缩体7112A和多个电极7113A，所述多个压电伸缩体7112A和所述多个电极7113A之间交替层叠设置。特别地，通过如上所述的层叠结构，所述压电元件7111A即便在施加了很小的电场的情况下，也可获得相对较大的形变量。As shown in FIGS. 6A and 76B , in this example, the piezoelectric active part 7110 includes a piezoelectric element 7111A having a laminated structure as illustrated in FIG. 6A . Specifically, as shown in FIG. 6A , the piezoelectric element 7111A includes a plurality of piezoelectric stretchable bodies 7112A and a plurality of electrodes 7113A, and the plurality of piezoelectric stretchable bodies 7112A and the plurality of electrodes 7113A are alternately stacked. . In particular, with the laminated structure as described above, the piezoelectric element 7111A can obtain a relatively large amount of deformation even when a small electric field is applied.
在该示例中，为了便于说明，将交替地夹着多个压电伸缩体7112A而成的电极7113A定义为内部电极，而将配设于所述压电伸缩体7112A的表面且位于所述压电元件7111A的上表面和下表面的电极7113A分别定义为上电极和下电极，同时，将配设于所述压电伸缩体7112A的表面且位于所述压电元件7111A的侧表面的电极7113A定义为侧电极。相应地，在多层的情况下，相同极性的电极7113A通过所述侧电极进行电连接。In this example, for convenience of explanation, the electrode 7113A which sandwiches a plurality of piezoelectric stretchable bodies 7112A alternately is defined as an internal electrode, and the electrode 7113A is disposed on the surface of the piezoelectric stretchable body 7112A and located in the piezoelectric stretchable body 7112A. The electrodes 7113A on the upper surface and the lower surface of the electric element 7111A are defined as the upper electrode and the lower electrode, respectively, and the electrode 7113A disposed on the surface of the piezoelectric stretchable body 7112A and located on the side surface of the piezoelectric element 7111A is Defined as side electrodes. Accordingly, in the case of multiple layers, electrodes 7113A of the same polarity are electrically connected through the side electrodes.
如图6B所示，在该示例中，所述从动轴7120具有圆柱形状并通过黏着剂附着于所述压电元件7111A的上表面的中间区域，以使得所述移动轴接合于所述压电元件7111A。当然，在本申请其他示例中，所述移动轴的形状也可以做出调整，对此，并不为本申请所局限。As shown in FIG. 6B, in this example, the driven shaft 7120 has a cylindrical shape and is attached to the middle area of the upper surface of the piezoelectric element 7111A by an adhesive, so that the moving shaft is engaged with the piezoelectric element 7111A. Electrical component 7111A. Of course, in other examples of the present application, the shape of the moving shaft can also be adjusted, which is not limited by the present application.
并且，所述从动轴7120由以“碳、重金属、重金属的碳化物、重金属 的硼化物以及重金属的氮化物”中的任一为主要成分的材料制成，所述压电元件7111A具有长方体形状，其具有分别沿着相互正交的X轴、Y轴以及Z轴的边。在该示例中，所述压电元件7111A的X轴方向长度为1mm，所述压电元件7111A的Y轴方向长度为1mm，所述压电元件7111A的Z轴方向长度(高度)为72mm。In addition, the driven shaft 7120 is made of a material containing any one of “carbon, heavy metals, carbides of heavy metals, borides of heavy metals, and nitrides of heavy metals” as a main component, and the piezoelectric element 7111A has a rectangular parallelepiped. A shape that has sides along mutually orthogonal X, Y, and Z axes, respectively. In this example, the length of the piezoelectric element 7111A in the X-axis direction is 1 mm, the length in the Y-axis direction of the piezoelectric element 7111A is 1 mm, and the length (height) in the Z-axis direction of the piezoelectric element 7111A is 72 mm.
值得一提的是，相较于传统的电磁式驱动器，图6A和图6B所示意的所述压电致动器7100具有体积小、推力大，精度高的优势。并且，相较于图5A和图5B所示意的压电致动器7100，图6A和图6B所示意的所述压电致动器7100的所述压电主动部7110具有相对更小的截面尺寸，适于在空间紧凑的模组中使用，但是其厚度尺寸相对较大，同时，所述压电元件7111A的内部结构相对较为复杂。It is worth mentioning that, compared with the traditional electromagnetic driver, the piezoelectric actuator 7100 shown in FIGS. 6A and 6B has the advantages of small size, large thrust, and high precision. Moreover, compared with the piezoelectric actuator 7100 illustrated in FIGS. 5A and 5B , the piezoelectric active portion 7110 of the piezoelectric actuator 7100 illustrated in FIGS. 6A and 6B has a relatively smaller cross section The size is suitable for use in a module with compact space, but its thickness is relatively large, and at the same time, the internal structure of the piezoelectric element 7111A is relatively complex.
相应地，根据本申请实施例的所述压电致动器7100能够提供相对较高的驱动力。更明确地，本申请所选择的所述压电致动器7100能够提供的驱动力大小为0.76N至2N，其足以驱动重量大于100mg的部件。除了能够提供相对较大的驱动力以外，相较于传统的电磁式马达方案和记忆合金马达方案，所述压电致动器7100还具有其他优势，包括但不限于：尺寸相对较小(具有细长状)，响应精度更佳，结构相对更为简单，驱动控制相对更为简单，产品一致性高，没有电磁干扰，具有相对更大的行程，稳定时间短，重量相对较小等。Accordingly, the piezoelectric actuator 7100 according to the embodiment of the present application can provide a relatively high driving force. More specifically, the piezoelectric actuator 7100 selected in this application can provide a driving force of 0.76N to 2N, which is sufficient to drive a component with a weight greater than 100 mg. In addition to being able to provide a relatively large driving force, the piezoelectric actuator 7100 has other advantages compared to traditional electromagnetic motor solutions and memory alloy motor solutions, including but not limited to: a relatively small size (with Slender shape), better response accuracy, relatively simpler structure, relatively simpler drive control, high product consistency, no electromagnetic interference, relatively larger stroke, short stabilization time, relatively small weight, etc.
进一步地，所述压电致动器7100利用振动时的摩擦力和惯性，以摩擦接触的方式推动待推动对象(例如，所述对焦部分723或所述变焦部分722)进行微米级运动，其相较于电磁式方案非接触的方式驱动待推动对象需要依靠电磁力抵消重力，摩擦力的方式，具有更大推力，更大位移和更低功耗的优势，同时控制精度更高，可实现高精度连续变焦。而且在存在多个马达机构时，所述压电致动器7100不存在磁铁线圈结构，无磁干扰问题。另外，所述压电致动器7100可依靠部件之间的摩擦力自锁，因此可以降低所述潜望式摄像模组在进行光学变焦时的晃动异响。Further, the piezoelectric actuator 7100 uses the frictional force and inertia during vibration to push the object to be pushed (for example, the focusing portion 723 or the zooming portion 722 ) to perform micron-level motion in a frictional contact manner, which Compared with the electromagnetic scheme, the non-contact way to drive the object to be pushed needs to rely on the electromagnetic force to offset the gravity and friction force. It has the advantages of greater thrust, greater displacement and lower power consumption. High-precision continuous zoom. Moreover, when there are multiple motor mechanisms, the piezoelectric actuator 7100 does not have a magnet coil structure, so there is no problem of magnetic interference. In addition, the piezoelectric actuator 7100 can be self-locked by the friction between the components, so the abnormal shaking noise of the periscope camera module during optical zooming can be reduced.
相应地，在本申请实施例中，所述第一驱动元件7421和所述第二驱动元件7431被实施为所述压电致动器7100，其中，所述第一驱动元件7421被配置为驱动所述第一驱动载体744，以带动所述变焦部分722沿着该光轴方向移动；所述第二驱动元件7431被配置为驱动所述第二驱动载体745， 以带动所述对焦部分723沿着该光轴方向移动。Correspondingly, in the embodiment of the present application, the first driving element 7421 and the second driving element 7431 are implemented as the piezoelectric actuator 7100, wherein the first driving element 7421 is configured to drive The first driving carrier 744 drives the zoom portion 722 to move along the optical axis; the second driving element 7431 is configured to drive the second driving carrier 745 to drive the focusing portion 723 along the optical axis. move in the direction of the optical axis.
特别地，如图1和图2所示，在该实施例中，所述第一驱动模块742包括一个所述第一驱动元件7421，所述第二驱动模块743包括一个所述第二驱动元件7431，即，所述第一驱动模块742包括一个所述压电致动器7100，所述第二驱动模块743包括一个所述压电致动器7100。并且，所述第一驱动元件7421和所述第二驱动元件7431位于所述变焦透镜组720的第一侧，也就是说，在本申请实施例中，用于驱动所述第一驱动载体744的所述压电致动器7100和用于驱动所述第二驱动载体745的所述压电致动器7100被设置于所述变焦透镜组720的同一侧，这样，所述第一驱动元件7421和所述第二驱动元件7431在所述壳体760内的布置紧凑度更高，所占据的所述壳体760的纵向空间更小。这里，所述壳体760的纵向空间指的是所述壳体760在其长度方向上所占据的空间，相应地，所述壳体760的横向空间指的是所述壳体760在其宽度方向上所占据的空间，所述壳体760的高度空间指的是所述壳体760在其高度方向上所占据的空间。In particular, as shown in FIG. 1 and FIG. 2 , in this embodiment, the first driving module 742 includes one of the first driving elements 7421 , and the second driving module 743 includes one of the second driving elements 7431 , that is, the first driving module 742 includes one piezoelectric actuator 7100 , and the second driving module 743 includes one piezoelectric actuator 7100 . In addition, the first driving element 7421 and the second driving element 7431 are located on the first side of the zoom lens group 720 , that is, in the embodiment of the present application, they are used to drive the first driving carrier 744 The piezoelectric actuator 7100 and the piezoelectric actuator 7100 for driving the second driving carrier 745 are arranged on the same side of the zoom lens group 720, so that the first driving element The arrangement of 7421 and the second driving element 7431 in the housing 760 is more compact, and occupies less longitudinal space of the housing 760 . Here, the longitudinal space of the casing 760 refers to the space occupied by the casing 760 in the length direction thereof, and correspondingly, the lateral space of the casing 760 refers to the width of the casing 760 . The space occupied in the direction, the height space of the casing 760 refers to the space occupied by the casing 760 in the height direction.
并且，当所述第一驱动元件7421和所述第二驱动元件7431被设置于所述光轴的同一侧时，在通过所述第一驱动元件7421驱动所述变焦部分722和通过所述第二驱动元件7431驱动所述对焦部分723时，所述变焦部分722和所述对焦部分723之间的相对位置关系(尤其是相对倾斜关系)能够得以降低，以提高所述对焦部分723和所述变焦部分722之间的一致性，减小所述潜望式摄像模组因所述变焦部分722和所述对焦部分723的倾斜而导致的成像质量下降的可能性。Also, when the first driving element 7421 and the second driving element 7431 are disposed on the same side of the optical axis, the zooming portion 722 is driven by the first driving element 7421 and the zooming portion 722 is driven by the first driving element 7421 When the two driving elements 7431 drive the focusing portion 723, the relative positional relationship (especially the relative inclination relationship) between the zooming portion 722 and the focusing portion 723 can be reduced, so as to improve the focusing portion 723 and the focusing portion 723. The consistency between the zooming parts 722 reduces the possibility of image quality degradation of the periscope camera module due to the inclination of the zooming part 722 and the focusing part 723 .
进一步地，如图1至图4所示，在该示例中，所述第一驱动元件7421和所述第二驱动元件7431位于所述光轴的同一侧，且位于同一侧的所述第一驱动元件7421和所述第二驱动元件7431异向地设置，或者说，位于同一侧的所述第一驱动元件7421和所述第二驱动元件7431相对地设置，通过这样的方式，进一步增加所述第一驱动元件7421和所述第二驱动元件7431在所述壳体760所形成的空间内布置的紧凑性。在本申请实施例中，所述第一驱动元件7421和所述第二驱动元件7431被实施为压电致动器7100，其包括压电主动部7110和自所述压电主动部7110延伸的从动轴7120。如果设定所述压电主动部7110为所述压电致动器7100的头部，所述从动轴7120为所述压电致动器7100的尾部，并且设定所述压电致动器 7100的头部在前、其尾部在后为第一方向，设定所述压电致动器7100的头部在后、尾部在前为第二方向，则在该示例中，所述第一驱动元件7421以第一方向布置，而所述第二驱动元件7431以第二方向布置，也就是，在该示例中，所述第一驱动元件7421的尾部邻近于所述第二驱动元件7431的尾部。Further, as shown in FIG. 1 to FIG. 4 , in this example, the first driving element 7421 and the second driving element 7431 are located on the same side of the optical axis, and the first driving element 7421 and the second driving element 7431 are located on the same side. The driving element 7421 and the second driving element 7431 are arranged in opposite directions, or in other words, the first driving element 7421 and the second driving element 7431 on the same side are arranged opposite to each other. The compactness of the arrangement of the first driving element 7421 and the second driving element 7431 in the space formed by the housing 760 is improved. In the embodiment of the present application, the first driving element 7421 and the second driving element 7431 are implemented as piezoelectric actuators 7100 , which include a piezoelectric active part 7110 and a piezoelectric active part 7110 extending from the piezoelectric active part 7110 . Driven shaft 7120. If the piezoelectric active part 7110 is set as the head of the piezoelectric actuator 7100, the driven shaft 7120 is set as the tail of the piezoelectric actuator 7100, and the piezoelectric actuator is set If the head of the actuator 7100 is in the front and the tail is in the back, the first direction is set, and the head of the piezoelectric actuator 7100 is set in the back and the tail is in the front. In this example, the first direction is A driving element 7421 is arranged in the first direction, and the second driving element 7431 is arranged in the second direction, that is, in this example, the tail of the first driving element 7421 is adjacent to the second driving element 7431 the tail.
优选地，在本申请实施例中，所述第一驱动元件7421和所述第二驱动元件7431相对于所述壳体760的底表面具有相同的安装高度，即，所述第一压电致动器7420和所述第二压电致动器7430相对于所述壳体760的底表面具有相同的安装高度，也就是，所述第一驱动元件7421和所述第二驱动元件7431在所述壳体760的高度空间上可以被设置为处于同一直线上。这样，所述对焦部分723和所述变焦部分722在所述壳体760所设定的高度方向上的在被所述第一驱动元件7421和所述驱动元件所驱动后的一致性相对更高，也就是，在通过所述第一驱动元件7421驱动所述变焦部分722和通过所述第二驱动元件7431驱动所述对焦部分723后，所述变焦部分722和所述对焦部分723在所述壳体760所设定的高度方向上的一致性相对更高，以确保所述潜望式摄像模组的成像质量。Preferably, in the embodiment of the present application, the first driving element 7421 and the second driving element 7431 have the same installation height with respect to the bottom surface of the housing 760 , that is, the first piezoelectric The actuator 7420 and the second piezoelectric actuator 7430 have the same mounting height with respect to the bottom surface of the housing 760, that is, the first driving element 7421 and the second driving element 7431 are in The heights of the housing 760 can be arranged to be on the same straight line. In this way, the consistency of the focusing portion 723 and the zooming portion 722 in the height direction set by the housing 760 after being driven by the first driving element 7421 and the driving element is relatively higher , that is, after the zooming part 722 is driven by the first driving element 7421 and the focusing part 723 is driven by the second driving element 7431, the zooming part 722 and the focusing part 723 are in the The uniformity in the height direction set by the casing 760 is relatively higher to ensure the imaging quality of the periscope camera module.
更优选地，在本申请实施例中，所述第一驱动元件7421和所述第二驱动元件7431在所述壳体760所设定的宽度方向上相对对齐的设置。也就是，更优选地，在本申请实施例中，所述第一压电致动器7420的第一从动轴7422和所述第二压电致动器7430的第二从动轴7432相互对齐。也就是，所述第一驱动元件7421和所述第二驱动元件7431在所述光轴的第一侧的宽度方向也对齐地设置，以进一步地增加所述第一驱动元件7421和所述第二驱动元件7431在空间布置上的一致性和紧凑性，以及，增加所述对焦部分723和所述变焦部分722在被驱动后的一致性。More preferably, in the embodiment of the present application, the first driving element 7421 and the second driving element 7431 are relatively aligned in the width direction set by the housing 760 . That is, more preferably, in the embodiment of the present application, the first driven shaft 7422 of the first piezoelectric actuator 7420 and the second driven shaft 7432 of the second piezoelectric actuator 7430 are mutually Align. That is, the first driving element 7421 and the second driving element 7431 are also aligned in the width direction of the first side of the optical axis, so as to further increase the first driving element 7421 and the first driving element 7421 and the first driving element 7431. The consistency and compactness of the spatial arrangement of the two driving elements 7431, and the consistency of the focusing portion 723 and the zooming portion 722 after being driven are increased.
在具体实施中，可通过将所述第一驱动元件7421的头部固定于所述壳体760的第一侧壁的方式，将所述第一驱动元件7421悬持地固定于所述壳体760内并且所述第一驱动元件7421的尾部延伸入所述第一驱动载体742和所述壳体的底表面所形成的收容空间内。同时，通过将所述第二驱动元件7431的头部固定于所述壳体760的与所述第一侧壁相对的第二侧壁的方式，将所述第二驱动元件7431的尾部延伸入所述第二驱动载体743和所述壳体的底表面所形成的收容空间内。In a specific implementation, the first driving element 7421 can be suspended and fixed to the casing by fixing the head of the first driving element 7421 to the first side wall of the casing 760 . 760 and the tail of the first driving element 7421 extends into the receiving space formed by the first driving carrier 742 and the bottom surface of the housing. At the same time, by fixing the head of the second driving element 7431 to the second side wall of the housing 760 opposite to the first side wall, the tail of the second driving element 7431 is extended into the in the receiving space formed by the second driving carrier 743 and the bottom surface of the casing.
值得一提的是，在本申请其他示例中，所述第一驱动元件7421和所述第二驱动元件7431能够以其他方式被异向地设置，例如，在如图7A所示意的变形实施中，所述第一驱动元件7421以第二方向设置，所述第二驱动元件7431以第一方向设置，即，在该变形实施中，所述第一驱动元件7421的头部对应于所述第二驱动元件7431的头部。It is worth mentioning that, in other examples of the present application, the first driving element 7421 and the second driving element 7431 can be arranged in other ways, for example, in the variant implementation as shown in FIG. 7A , the first driving element 7421 is arranged in the second direction, and the second driving element 7431 is arranged in the first direction, that is, in this variant implementation, the head of the first driving element 7421 corresponds to the first driving element 7421 The head of the two driving elements 7431.
还值得一提的是，在本申请其他示例中，在所述第一驱动元件7421和所述第二驱动元件7431被设置于所述光轴的同一侧的前提下，所述第一驱动元件7421和所述第二驱动元件7431也可以同向地设置。例如，所述第一驱动元件7421和所述第二驱动元件7431同时以第一方向布置，或者，所述第一驱动元件7421和所述第二驱动元件7431同时以第二方向布置(如图7B所示)。It is also worth mentioning that, in other examples of the present application, on the premise that the first driving element 7421 and the second driving element 7431 are arranged on the same side of the optical axis, the first driving element 7421 and the second driving element 7431 can also be arranged in the same direction. For example, the first driving element 7421 and the second driving element 7431 are arranged in the first direction at the same time, or the first driving element 7421 and the second driving element 7431 are arranged in the second direction at the same time (as shown in FIG. 7B).
进一步地，在所述第一驱动元件7421和所述第二驱动元件7431被布置于所述光轴或所述变焦透镜组720的同一侧的前提下，为了进一步地提高所述对焦部分723和所述变焦部分722在被驱动后的一致性，如图1至图4，以及，图7A和图7B所示，在本申请实施例中，所述驱动组件740，进一步包括：设置于所述光轴的与所述第一侧相对的第二侧的导引结构746，所述导引结构746被配置为引导所述对焦部分723和所述变焦部分722沿着所述光轴所设定的方向移动。Further, on the premise that the first driving element 7421 and the second driving element 7431 are arranged on the same side of the optical axis or the zoom lens group 720 , in order to further improve the focus part 723 and The consistency of the zoom portion 722 after being driven is shown in FIGS. 1 to 4 , and as shown in FIGS. 7A and 7B , in this embodiment of the present application, the driving assembly 740 further includes: A guide structure 746 on a second side of the optical axis opposite the first side, the guide structure 746 being configured to guide the focusing portion 723 and the zoom portion 722 along the optical axis as set move in the direction.
也就是，在上述实施例中，所述第一驱动元件7421和所述第二驱动元件7431，以及，所述导引结构746分别位于所述光轴的两侧，通过这样的位置设置，使得所述潜望式摄像模组的内部空间被充分地应用，以利于所述潜望式摄像模组的轻型化和薄型化。That is, in the above embodiment, the first driving element 7421 and the second driving element 7431, and the guiding structure 746 are located on both sides of the optical axis, respectively. The internal space of the periscope camera module is fully utilized, so as to facilitate the lightening and thinning of the periscope camera module.
如图1至图4，以及，图7A和图7B所示，在上述示例中，所述第一驱动元件7421和所述第二驱动元件7431共同一个导引结构746，也就是，所述第一驱动载体744和所述第二驱动载体745共同一个导引结构746，通过这样的方式，有利于稳定地保持所述第一驱动载体744和所述第二驱动载体745之间的相对位置关系，以利于稳定地保持所述变焦透镜组720的所述对焦部分723和所述变焦部分722之间的相对位置关系，以提高所述变焦透镜组720的解像能力。1 to 4 , and as shown in FIGS. 7A and 7B , in the above example, the first driving element 7421 and the second driving element 7431 share a guiding structure 746 , that is, the first driving element 7421 and the second driving element 7431 share a guiding structure 746 A driving carrier 744 and the second driving carrier 745 share a guiding structure 746 . In this way, the relative positional relationship between the first driving carrier 744 and the second driving carrier 745 can be stably maintained. , so as to stably maintain the relative positional relationship between the focus portion 723 and the zoom portion 722 of the zoom lens group 720 , so as to improve the resolution capability of the zoom lens group 720 .
如图1至图4，以及，图7A和图7B所示，在上述示例中，所述导引结构746，包括：相间隔地形成于所述壳体760的第一支撑部7461和第二支 撑部7462，以及，架设于所述第一支撑部7461和第二支撑部7462之间且贯穿所述第一驱动载体744和所述第二驱动载体745的至少一导杆7463，所述导杆7463与所述光轴平行，以使得所述第一驱动载体744和所述第二驱动载体745能够被导引沿着平行于所述光轴的所述导杆7463所设定的方向移动。1 to 4 , and as shown in FIGS. 7A and 7B , in the above example, the guide structure 746 includes: a first support portion 7461 and a second support portion 7461 formed on the housing 760 at intervals. The support portion 7462, and at least one guide rod 7463 spanning between the first support portion 7461 and the second support portion 7462 and passing through the first drive carrier 744 and the second drive carrier 745, the guide The rod 7463 is parallel to the optical axis so that the first drive carrier 744 and the second drive carrier 745 can be guided to move in the direction set by the guide rod 7463 parallel to the optical axis .
值得一提的是，优选地，在本申请实施例中，所述导杆7463与所述第一驱动元件7421的从动轴7120和所述第二驱动元件7431的从动轴7120齐平，这样可以减小所述对焦部和所述变焦部之间产生倾斜的风险，以确保所述潜望式摄像模组的成像质量。It is worth mentioning that, preferably, in the embodiment of the present application, the guide rod 7463 is flush with the driven shaft 7120 of the first driving element 7421 and the driven shaft 7120 of the second driving element 7431, In this way, the risk of inclination between the focusing part and the zooming part can be reduced, so as to ensure the imaging quality of the periscope camera module.
值得一提的是，在本申请其他示例中，还可以采用其他结构的导引结构746，例如，基于滚珠方案的导引结构，或者，基于滑块方案的导引结构，对此，并不为本申请所局限。It is worth mentioning that in other examples of the present application, the guiding structure 746 of other structures may also be used, for example, a guiding structure based on a ball scheme, or a guiding structure based on a slider scheme. limited by this application.
图7C至图7J图示了根据本申请实施例的所述潜望式摄像模组的所述第一驱动模块和所述第二驱动模块的几个变形实施的示意图。如图7C至图7J所示，在这些变形实施中，所述第一驱动模块742包括两个所述第一驱动元件7421，其中，一个所述第一驱动元件7421被配置为从所述第一驱动载体744的第一侧驱动所述第一驱动载体744以带动所述变焦部分722沿着所述光轴所设定的方向移动，另一个所述第一驱动元件7421被配置为从所述第一驱动载体744的与所述第一侧相对的第二侧驱动所述第一驱动载体744以带动所述变焦部分722沿着所述光轴所设定的方向移动。并且，所述第二驱动模块743包括两个所述第二驱动元件7431，其中，一个所述第二驱动元件7431被配置为从所述第二驱动载体745的第一侧驱动所述第二驱动载体745以带动所述对焦部分723沿着所述光轴所设定的方向移动，另一个所述第二驱动元件7431被配置为从所述第二驱动载体745的与所述第一侧相对的第二侧驱动所述第二驱动载体745以带动所述对焦部分723沿着所述光轴所设定的方向移动。7C to 7J illustrate schematic diagrams of several variant implementations of the first driving module and the second driving module of the periscope camera module according to an embodiment of the present application. As shown in FIGS. 7C to 7J , in these variant implementations, the first drive module 742 includes two of the first drive elements 7421 , wherein one of the first drive elements 7421 is configured to extend from the first drive element 7421 . The first side of a driving carrier 744 drives the first driving carrier 744 to drive the zoom portion 722 to move along the direction set by the optical axis, and the other first driving element 7421 is configured to move from the The second side of the first driving carrier 744 opposite to the first side drives the first driving carrier 744 to drive the zoom portion 722 to move along the direction set by the optical axis. And, the second driving module 743 includes two of the second driving elements 7431 , wherein one of the second driving elements 7431 is configured to drive the second driving carrier 745 from the first side of the second driving carrier 745 The carrier 745 is driven to drive the focusing portion 723 to move along the direction set by the optical axis, and another second driving element 7431 is configured to move from the first side of the second driving carrier 745 to the first side. The opposite second side drives the second driving carrier 745 to drive the focusing portion 723 to move along the direction set by the optical axis.
也就是，在如图7C至图7J所示意的变形实施例中，所述第一驱动模块742包括两个所述压电致动器7100，其中，两个所述压电致动器7100被配置为从所述第一驱动载体744的相对的两侧同时驱动所述第一驱动载体744以带动所述变焦部分722沿着所述光轴所设定的方向移动；并且，所述第二驱动模块743包括两个所述压电致动器7100，其中，两个所述压电致 动器7100被配置为从所述第二驱动载体745的相对的两侧同时驱动所述第二驱动载体745以带动所述对焦部分723沿着所述光轴所设定的方向移动。That is, in the variant embodiment as illustrated in FIGS. 7C to 7J , the first driving module 742 includes two piezoelectric actuators 7100 , wherein the two piezoelectric actuators 7100 are It is configured to drive the first driving carrier 744 simultaneously from opposite sides of the first driving carrier 744 to drive the zoom portion 722 to move along the direction set by the optical axis; and, the second The drive module 743 includes two of the piezoelectric actuators 7100 , wherein the two piezoelectric actuators 7100 are configured to simultaneously drive the second drive from opposite sides of the second drive carrier 745 The carrier 745 drives the focusing portion 723 to move along the direction set by the optical axis.
应注意到，相较于如图1至图4以及图7A和图7B所示意的实施例，在上述变形实施例中，没有配置所述导引结构746。应可以理解，由于在所述第一驱动载体744和所述第二驱动载体745的两侧分别设置了压电致动器7100，因此，位于第一侧的压电致动器7100和位于第二侧的压电致动器7100在驱动过程中能够相互制约并相互平衡，从而可避免所述导引结构746的使用。It should be noted that, compared with the embodiments illustrated in FIGS. 1 to 4 and FIGS. 7A and 7B , in the above variant embodiment, the guiding structure 746 is not configured. It should be understood that since piezoelectric actuators 7100 are provided on both sides of the first driving carrier 744 and the second driving carrier 745, respectively, the piezoelectric actuator 7100 on the first side and the piezoelectric actuator 7100 on the first side The piezoelectric actuators 7100 on the two sides can restrict and balance each other during the driving process, so that the use of the guiding structure 746 can be avoided.
值得一提的是，图7C至图7J图示了所述压电致动器7100在所述壳体内的示例性布局方式，例如，在如图7C所示意的示例中，所述第一驱动模块742的两个压电致动器7100被同向地设置，所述第二驱动模块743的两个压电致动器7100被同向的设置，且所述第一驱动模块742的压电致动器7100和所述第二驱动模块743的压电致动器7100相对地设置。应可以理解，除了图7C至图7J所示意的布局方式外，在本申请其他示例中，所述第一驱动模块742的两个压电致动器7100和所述第二驱动模块743的两个压电致动器7100还能够以其他方式被布局于所述壳体内，对此，并不为本申请所局限。It is worth mentioning that FIGS. 7C to 7J illustrate an exemplary layout of the piezoelectric actuator 7100 in the housing. For example, in the example shown in FIG. 7C , the first driving The two piezoelectric actuators 7100 of the module 742 are arranged in the same direction, the two piezoelectric actuators 7100 of the second driving module 743 are arranged in the same direction, and the piezoelectric actuators of the first driving module 742 are arranged in the same direction. The actuator 7100 is opposite to the piezoelectric actuator 7100 of the second driving module 743 . It should be understood that, in addition to the layouts shown in FIGS. 7C to 7J , in other examples of the present application, the two piezoelectric actuators 7100 of the first driving module 742 and the two piezoelectric actuators 7100 of the second driving module 743 The piezoelectric actuators 7100 can also be arranged in the housing in other ways, which are not limited by the present application.
在选择以所述压电致动器7100为所述第一驱动元件7421和所述第二驱动元件7431后，所述第一驱动元件7421和所述第二驱动元件7431可通过如下方式电连接于外接电源。例如，其可通过一连接电路电连接于所述第一驱动元件7421和所述第二驱动元件7431的电极层7115以及电极板7111的电导通部位7114，该连接电路可被实施为软板连接带或者多条引线，以通过该连接电路与外部电连接。After selecting the piezoelectric actuator 7100 as the first driving element 7421 and the second driving element 7431, the first driving element 7421 and the second driving element 7431 can be electrically connected in the following manner on an external power supply. For example, it can be electrically connected to the electrode layers 7115 of the first driving element 7421 and the second driving element 7431 and the electrical conduction part 7114 of the electrode plate 7111 through a connection circuit, which can be implemented as a flexible board connection with or a plurality of lead wires for electrical connection with the outside through the connection circuit.
值得一提的是，在本申请其他示例中，所述第一驱动元件7421和所述第二驱动元件7431也可以直接通过软板向外导出，并与所述感光组件730的线路板731电连接。或者，在所述壳体760的表面设置至少二LDS槽，所述LDS槽深度不大于20～30μm，宽度不小于60μm，在槽内运用LDS(激光直接成型技术)，在LDS槽表面镀设导电镀层(例如可以是镍钯金的镀层)，从而可以避免内部其他金属干扰，将所述第一驱动元件7421和所述第二驱动元件7431的连接电路与LDS槽中的导电镀层相连接，从而导出电路，并与所述感光组件730的线路板731电连接。又或者，还可以通过Insert  Molding(嵌入式注塑)技术，将至少二导线成型在所述壳体760中，从而将所述第一驱动元件7421和所述第二驱动元件7431的连接电路与导线电连接从而导出电路，并与所述感光组件730的线路板731电连接。It is worth mentioning that in other examples of the present application, the first driving element 7421 and the second driving element 7431 can also be directly led out through the flexible board, and electrically connected to the circuit board 731 of the photosensitive component 730 . connect. Alternatively, at least two LDS grooves are arranged on the surface of the casing 760, the depth of the LDS grooves is not greater than 20-30 μm, and the width is not less than 60 μm. LDS (laser direct structuring technology) is used in the grooves, and the LDS grooves are plated on the surface of the grooves. A conductive plating layer (for example, it can be a plating layer of nickel, palladium and gold), so as to avoid the interference of other metals inside, and the connection circuit of the first driving element 7421 and the second driving element 7431 is connected with the conductive plating layer in the LDS tank, Thereby, the circuit is derived and electrically connected to the circuit board 731 of the photosensitive component 730 . Alternatively, at least two wires can also be molded into the housing 760 through Insert Molding technology, so as to connect the connection circuit of the first driving element 7421 and the second driving element 7431 with the wires The electrical connection leads out the circuit, and is electrically connected with the circuit board 731 of the photosensitive component 730 .
进一步地，为了实现光学防抖功能，如图1和78A所示，在本申请实施例中，所述驱动组件740进一步包括用于驱动所述感光组件730在垂直于所述光轴的平面内移动和/或驱动所述光转折组件710进行旋转以进行光学防抖的第三驱动模块747。具体地，在该实施例中，所述第三驱动模块747被配置为驱动所述感光组件730在垂直于所述光轴的平面内移动以进行光学防抖。Further, in order to realize the optical anti-shake function, as shown in FIGS. 1 and 78A, in this embodiment of the present application, the driving component 740 further includes a device for driving the photosensitive component 730 in a plane perpendicular to the optical axis A third driving module 747 that moves and/or drives the light deflection assembly 710 to rotate for optical image stabilization. Specifically, in this embodiment, the third driving module 747 is configured to drive the photosensitive component 730 to move in a plane perpendicular to the optical axis to perform optical image stabilization.
如图8A和图8B所示，在该实施例中，所述第三驱动模块747包括至少二第三驱动元件7471，所述第三驱动元件7471被实施为所述压电致动器7100，也就是，在该实施例中，所述第三驱动模块747同样采样所述压电致动器7100来进行光学防抖。具体地，在该实施例中，一个所述第三驱动元件7471被配置为驱动所述感光组件730在垂直于所述光轴的平面内沿着第一方向移动，另一所述第三驱动元件7471被配置为驱动所述感光组件730在垂直于所述光轴的平面内沿着第二方向移动，所述第二方向垂直于所述第一方向，也就是，所述第三驱动模块747通过所述压电致动器7100实现在两个方向上的光学防抖。As shown in FIG. 8A and FIG. 8B, in this embodiment, the third driving module 747 includes at least two third driving elements 7471, and the third driving elements 7471 are implemented as the piezoelectric actuator 7100, That is, in this embodiment, the third driving module 747 also samples the piezoelectric actuator 7100 to perform optical anti-shake. Specifically, in this embodiment, one of the third driving elements 7471 is configured to drive the photosensitive member 730 to move along a first direction in a plane perpendicular to the optical axis, and the other of the third driving elements The element 7471 is configured to drive the photosensitive assembly 730 to move along a second direction in a plane perpendicular to the optical axis, the second direction being perpendicular to the first direction, that is, the third driving module 747 achieves optical image stabilization in two directions through the piezoelectric actuator 7100 .
为了便于理解和说明，定义所述感光芯片732的长边侧为X轴方向，所述感光芯片732的短边侧为Z方向，相应地，在该实施例中，所述第三驱动模块747通过所述压电致动器7100驱动所述感光芯片732在X轴方向上和Z轴方向上进行移动，以进行X轴方向的光学防抖和Z轴方向的光学防抖。For ease of understanding and description, the long side of the photosensitive chip 732 is defined as the X-axis direction, and the short side of the photosensitive chip 732 is defined as the Z direction. Correspondingly, in this embodiment, the third driving module 747 The photosensitive chip 732 is driven by the piezoelectric actuator 7100 to move in the X-axis direction and the Z-axis direction, so as to perform optical image stabilization in the X-axis direction and optical image stabilization in the Z-axis direction.
更具体地，如图8B所示，在该实施例中，所述驱动组件740包括第一框架747和第二框架748，其中，所述感光组件730被设置于所述第一框架747，所述第二框架748被设置于所述第一框架747的外侧且包围所述第一框架747。特别地，如图8所示，在该实施例中，一个所述第三驱动元件7471被安装于所述第二框架748并被配置为驱动所述第一框架747以带动所述感光组件730在垂直于所述光轴的平面内沿着所述第一方向移动；另一所述第三驱动元件7471被配置为驱动所述第二框架748以通过用于驱动所述第一框架747的所述第三驱动元件7471带动所述第一框架747以 带动所述感光组件730在垂直于所述光轴的平面内沿着所述第二方向移动。More specifically, as shown in FIG. 8B , in this embodiment, the driving assembly 740 includes a first frame 747 and a second frame 748 , wherein the photosensitive assembly 730 is disposed on the first frame 747 , so The second frame 748 is disposed outside the first frame 747 and surrounds the first frame 747 . Particularly, as shown in FIG. 8 , in this embodiment, one of the third driving elements 7471 is mounted on the second frame 748 and configured to drive the first frame 747 to drive the photosensitive assembly 730 moving along the first direction in a plane perpendicular to the optical axis; the other third driving element 7471 is configured to drive the second frame 748 to pass the drive for driving the first frame 747 The third driving element 7471 drives the first frame 747 to drive the photosensitive component 730 to move along the second direction in a plane perpendicular to the optical axis.
更明确地，如图8B所示，在该实施例中，一个所述压电致动器7100被安装于所述第二框架748的长边(即，X轴方向的边)，例如，通过黏着剂(优选地，具有弹性的黏着剂)附着于所述第二框架748的长边并且所述压电致动器7100的驱动部连接于所述第一框架747，这样，当所述压电致动器7100被驱动时，所述压电致动器7100能够驱动所述第一框架747以通过所述第一框架747带动所述感光组件730沿着X轴方向移动，以进行X轴方向的光学防抖。More specifically, as shown in FIG. 8B, in this embodiment, one of the piezoelectric actuators 7100 is mounted on the long side (ie, the side in the X-axis direction) of the second frame 748, for example, by An adhesive (preferably, an adhesive having elasticity) is attached to the long side of the second frame 748 and the driving part of the piezoelectric actuator 7100 is connected to the first frame 747, so that when the pressure When the electric actuator 7100 is driven, the piezoelectric actuator 7100 can drive the first frame 747 to drive the photosensitive component 730 to move along the X-axis direction through the first frame 747 to perform the X-axis directional optical image stabilization.
相应地，如图8B所示，在该实施例中，另一个所述压电致动器7100被安装于所述壳体(例如，被安装于所述壳体的侧壁)，且所述压电致动器7100的驱动部连接于所述第二框架748的短边，这样，当所述压电致动器7100被驱动时，所述压电致动器7100能够驱动所述第二框架748以通过用于驱动所述第一框架747的所述第三驱动元件7471作为传动桥梁带动所述第一框架747以带动所述感光组件730在垂直于所述光轴的平面内沿着Z轴方向进行移动，以进行Z轴方向的光学防抖。Accordingly, as shown in FIG. 8B, in this embodiment, another piezoelectric actuator 7100 is mounted to the housing (eg, mounted to a side wall of the housing), and the The driving part of the piezoelectric actuator 7100 is connected to the short side of the second frame 748, so that when the piezoelectric actuator 7100 is driven, the piezoelectric actuator 7100 can drive the second frame The frame 748 uses the third driving element 7471 for driving the first frame 747 as a transmission bridge to drive the first frame 747 to drive the photosensitive assembly 730 along a plane perpendicular to the optical axis. Move in the Z-axis direction to perform optical image stabilization in the Z-axis direction.
图8C图示了根据本申请实施例的所述第三驱动模块747和所述感光组件730的一个变形实施例。相较于图8B所示的实施例，在图8C所示意的变形实施例中，用于直接驱动所述第一框架747的所述压电致动器7100同样被设置于所述第二框架748的短边。应可以理解，当两个所述第三驱动元件7471被同时设置于所述第二框架748的短边时，所述感光组件730(尤其是所述线路板和所述感光芯片732)在Z轴方向上的高度尺寸可以被降低。FIG. 8C illustrates a modified embodiment of the third driving module 747 and the photosensitive assembly 730 according to an embodiment of the present application. Compared with the embodiment shown in FIG. 8B , in the variant embodiment shown in FIG. 8C , the piezoelectric actuator 7100 for directly driving the first frame 747 is also disposed on the second frame The short side of the 748. It should be understood that when the two third driving elements 7471 are disposed on the short sides of the second frame 748 at the same time, the photosensitive assembly 730 (especially the circuit board and the photosensitive chip 732 ) The height dimension in the axial direction can be reduced.
特别地，在如图8D所示意的变形示例中，两个所述第三驱动元件7471被同时设置于所述第二框架748的短边，并且，所述第二框架748在Z轴方向上的一个长边被去除，通过这样的方式，可进一步地降低所述感光组件730在Z轴方向上的尺寸。也就是，在该变形实施例中，所述第二框架748具有U型结构。In particular, in the modified example shown in FIG. 8D , the two third driving elements 7471 are simultaneously disposed on the short sides of the second frame 748 , and the second frame 748 is in the Z-axis direction One long side of the photosensitive component 730 in the Z-axis direction can be further reduced in this way. That is, in this modified embodiment, the second frame 748 has a U-shaped structure.
图8E图示了根据本申请实施例的所述第三驱动模块747和所述感光组件730的另一个变形实施例。如图8E所示，在该实施例中，所述第三驱动模块747包括一个所述压电致动器7100，用于驱动所述感光组件730沿着X轴方向进行移动，以进行X轴方向的光学防抖。也就是，在该变形实施例中，所述第三驱动模块747仅能够提供一个方向的光学防抖。FIG. 8E illustrates another modified embodiment of the third driving module 747 and the photosensitive assembly 730 according to an embodiment of the present application. As shown in FIG. 8E , in this embodiment, the third driving module 747 includes one of the piezoelectric actuators 7100 for driving the photosensitive component 730 to move along the X-axis direction, so as to perform the X-axis movement. directional optical image stabilization. That is, in this modified embodiment, the third driving module 747 can only provide optical image stabilization in one direction.
更具体地，如图8E所示，在该实施例中，所述感光组件730被安装于所述第一框架747，所述压电致动器7100被安装于所述第一框架747的短边用于驱动所述第一框架747以带动所述感光组件730沿着X轴方向进行移动，以进行X轴方向的光学防抖。特别地，当所述压电致动器7100被安装于所述第一框架747的短边时，可同样选择将所述第一框架747的一条长边去除，通过这样的方式，来降低所述感光组件730在Z轴方向上的尺寸。也就是，在该变形实施例中，所述第一框架747具有U型结构。More specifically, as shown in FIG. 8E , in this embodiment, the photosensitive component 730 is mounted on the first frame 747 , and the piezoelectric actuator 7100 is mounted on the short side of the first frame 747 . The edge is used to drive the first frame 747 to drive the photosensitive component 730 to move along the X-axis direction, so as to perform optical image stabilization in the X-axis direction. In particular, when the piezoelectric actuator 7100 is installed on the short side of the first frame 747, a long side of the first frame 747 can also be removed. The size of the photosensitive assembly 730 in the Z-axis direction. That is, in this modified embodiment, the first frame 747 has a U-shaped structure.
图8F图示了根据本申请实施例的所述第三驱动模块747和所述感光组件730的又一个变形实施例。如图8F所示，在该实施例中，所述第三驱动模块747包括一个所述压电致动器7100，用于驱动所述感光组件730沿着Z轴方向进行移动，以进行Z轴方向的光学防抖。也就是，在该变形实施例中，所述第三驱动模块747仅能够提供一个方向的光学防抖。FIG. 8F illustrates yet another modified embodiment of the third driving module 747 and the photosensitive assembly 730 according to the embodiment of the present application. As shown in FIG. 8F , in this embodiment, the third driving module 747 includes a piezoelectric actuator 7100 for driving the photosensitive component 730 to move along the Z-axis direction, so as to perform the Z-axis movement. directional optical image stabilization. That is, in this modified embodiment, the third driving module 747 can only provide optical image stabilization in one direction.
更具体地，如图8F所示，在该实施例中，所述感光组件730被安装于所述第一框架747，所述压电致动器7100被安装于所述第一框架747的短边用于驱动所述第一框架747以带动所述感光组件730沿着X轴方向进行移动，以进行Z轴方向的光学防抖。特别地，当所述压电致动器7100被安装于所述第一框架747的短边时，可同样选择将所述第一框架747的一条长边去除，通过这样的方式，来降低所述感光组件730在Z轴方向上的尺寸。也就是，在该变形实施例中，所述第一框架747具有U型结构。More specifically, as shown in FIG. 8F , in this embodiment, the photosensitive component 730 is mounted on the first frame 747 , and the piezoelectric actuator 7100 is mounted on the short side of the first frame 747 . The edge is used to drive the first frame 747 to drive the photosensitive assembly 730 to move along the X-axis direction, so as to perform optical image stabilization in the Z-axis direction. In particular, when the piezoelectric actuator 7100 is installed on the short side of the first frame 747, a long side of the first frame 747 can also be removed. The size of the photosensitive assembly 730 in the Z-axis direction. That is, in this modified embodiment, the first frame 747 has a U-shaped structure.
图9图示了根据本申请实施例的所述潜望式摄像模组的又一个变形实施的示意图。在如图9所示意的示例中，所述第三驱动模块747采用其他驱动元件作为驱动器来实现光学防抖，并且，所述第三驱动模块747的作用对象为所述光转折组件，也就是，在该变形实施例中，所述第三驱动模块747以其他类型的驱动元件并以驱动所述光转折组件进行旋转的方式进行光学防抖。FIG. 9 illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application. In the example shown in FIG. 9 , the third driving module 747 uses other driving elements as drivers to realize optical anti-shake, and the function object of the third driving module 747 is the light turning component, that is, , in this variant embodiment, the third driving module 747 uses other types of driving elements to perform optical anti-shake by driving the light turning component to rotate.
具体地，如图9所示，在该实施例中，所述第三驱动模块747包括至少二第三驱动元件7471，所述第三驱动元件7471被实施为传统的电磁式马达7200，其中，一个所述电磁式马达7200被配置为驱动所述光转折组件710绕着第一轴旋转，另一所述电磁式马达7200被配置为驱动所述光转折组件710绕着第二轴旋转，所述第二轴垂直于所述第一轴，通过这样方式，实现所述潜望式摄像模组在两个方向上的光学防抖。Specifically, as shown in FIG. 9 , in this embodiment, the third driving module 747 includes at least two third driving elements 7471 , and the third driving elements 7471 are implemented as conventional electromagnetic motors 7200 , wherein, One of the electromagnetic motors 7200 is configured to drive the light turning assembly 710 to rotate around the first axis, and the other electromagnetic motor 7200 is configured to drive the light turning assembly 710 to rotate around the second axis, so The second axis is perpendicular to the first axis, and in this way, the optical image stabilization of the periscope camera module in two directions is realized.
图10图示了根据本申请实施例的所述潜望式摄像模组的又一个变形实施的示意图。在如图10所示意的示例中，虽然所述第三驱动模块747的作用对象依旧是所述光转折组件710，但是，在该变形实施例中，所述第三驱动模块747采用其他驱动元件作为驱动器来实现两个方向的光学防抖。FIG. 10 illustrates a schematic diagram of yet another variant implementation of the periscope camera module according to an embodiment of the present application. In the example shown in FIG. 10 , although the third driving module 747 still acts on the light turning assembly 710 , in this variant embodiment, the third driving module 747 adopts other driving elements Acting as a driver to achieve optical image stabilization in both directions.
具体地，如图10所示，在该实施例中，所述第三驱动模块747包括至少二第三驱动元件7471，所述第三驱动元件7471被实施为压电行波旋转型超声波致动器7300，其中，一个所述压电行波旋转型超声波致动器7300被配置为驱动所述光转折组件710绕着第一轴旋转，另一所述压电行波旋转型超声波致动器7300被配置为驱动所述光转折组件710绕着第二轴旋转，所述第二轴垂直于所述第一轴，通过这样方式，实现所述潜望式摄像模组在两个方向上的光学防抖。Specifically, as shown in FIG. 10 , in this embodiment, the third driving module 747 includes at least two third driving elements 7471 , and the third driving elements 7471 are implemented as piezoelectric traveling wave rotary ultrasonic actuation The device 7300, wherein one of the piezoelectric traveling-wave rotary ultrasonic actuators 7300 is configured to drive the light-reflecting assembly 710 to rotate around a first axis, and the other piezoelectric traveling-wave rotary ultrasonic actuators 7300 is configured to drive the light turning assembly 710 to rotate around a second axis, the second axis is perpendicular to the first axis, in this way, the periscope camera module can be rotated in two directions. Optical image stabilization.
图11A至图11F图示了根据本申请实施例的所述压电行波旋转型超声波致动器的示意图。如图11A至图11F所示，所述压电行波旋转型超声波致动器7300，包括定子7301、转子7302，以及，驱动与控制装置7303。所述定子7301与所述转子7302可以均为盘形结构(如图11A和如图11C所示)或者环形结构(如图11B和如图11D所示)，在所述转子7302与所述定子7301相接触的表面上覆有一层特殊性能的摩擦材料，且所述转子7302与所述定子7301靠一定的轴向力压紧在一起。所述定子7301为带齿槽的或盘形环形弹性体(振动体)与压电陶瓷(压电转换材料)的结合，在所述定子7301的背面或者两面粘贴了一层或两层压电陶瓷。所述压电行波旋转型超声波马达利用行波的周向传播来驱动转子7302转动，行波使定子7301弹性体在于转子7302相接触的表面质点沿椭圆轨迹移动，利用定子7301与转子7302接触的摩擦力推动转子7302转动。所述转子7302包括移动体，当所述转子7302为盘形结构时，所述转子7302中央可设有一旋转轴，所述旋转轴适于与所述移动体相固定，从而所述转子7302通过所述旋转轴输出旋转。11A to 11F illustrate schematic diagrams of the piezoelectric traveling wave rotary ultrasonic actuator according to an embodiment of the present application. As shown in FIGS. 11A to 11F , the piezoelectric traveling wave rotary ultrasonic actuator 7300 includes a stator 7301 , a rotor 7302 , and a driving and control device 7303 . The stator 7301 and the rotor 7302 may both be disc-shaped structures (as shown in FIG. 11A and FIG. 11C ) or annular structures (as shown in FIG. 11B and FIG. 11D ). The contact surface of 7301 is covered with a layer of friction material with special properties, and the rotor 7302 and the stator 7301 are pressed together by a certain axial force. The stator 7301 is a combination of a slotted or disc-shaped annular elastic body (vibrating body) and a piezoelectric ceramic (piezoelectric conversion material). One or two layers of piezoelectric material are pasted on the back or both sides of the stator 7301. ceramics. The piezoelectric traveling wave rotary ultrasonic motor uses the circumferential propagation of traveling waves to drive the rotor 7302 to rotate. The traveling wave makes the elastic body of the stator 7301 move along the elliptical trajectory along the surface particles where the stator 7301 contacts the rotor 7302, and the stator 7301 is used to contact the rotor 7302. The friction force pushes the rotor 7302 to rotate. The rotor 7302 includes a moving body. When the rotor 7302 is a disc-shaped structure, a rotating shaft can be provided in the center of the rotor 7302, and the rotating shaft is suitable for being fixed with the moving body, so that the rotor 7302 can pass through. The rotating shaft outputs rotation.
图11E和图11F示出了本申请使用的压电行波旋转型超声波马达的压电陶瓷的一种极化分布形式，图中“+”“-”号表示极化方向，A区(相)和B区(相)为板化区，由数段极化过的压电陶瓷片组成。由于相邻的两段压电陶瓷片的极化方向相反，加电压后，一段收缩，另一段伸长，构成一个波长的弹性波。S区长度为1/4波长，用于将两驻波合成一个行波，也可作控制和测 量用反馈信号的传感器；GND区长为3/4波长，作为A区和B区的公共地。11E and 11F show a polarization distribution form of the piezoelectric ceramics of the piezoelectric traveling wave rotary ultrasonic motor used in the present application. ) and B area (phase) are plate areas, which are composed of several segments of polarized piezoelectric ceramic sheets. Since the polarization directions of the two adjacent piezoelectric ceramic sheets are opposite, after applying a voltage, one section contracts and the other section elongates, forming an elastic wave of one wavelength. The length of the S area is 1/4 wavelength, which is used to synthesize two standing waves into a traveling wave, and can also be used as a sensor for feedback signals for control and measurement; .
相应地，如图10所示，在该实施例中，所述光转折组件710进一步包括具有安装腔7131的第二安装载体713，所述光转折元件711和所述第一安装载体712所形成的光转折模块被安装于所述第二安装载体713的安装腔7131内，其中，一个所述第三驱动元件被安装于所述第一安装载体712并被配置为驱动第一安装载体712以带动所述光转折组件710绕着所述第一轴旋转，另一所述第三驱动元件被安装于所述第二安装载体713并被配置为驱动第二安装载体713以通过所述第一安装载体712带动所述光转折组件710绕着所述第二轴旋转。Correspondingly, as shown in FIG. 10 , in this embodiment, the light deflection assembly 710 further includes a second mounting carrier 713 having a mounting cavity 7131 , and the light deflection element 711 and the first mounting carrier 712 are formed by The light redirecting module is mounted in the mounting cavity 7131 of the second mounting carrier 713, wherein one of the third driving elements is mounted on the first mounting carrier 712 and is configured to drive the first mounting carrier 712 to The light turning assembly 710 is driven to rotate around the first axis, and another third driving element is mounted on the second mounting carrier 713 and configured to drive the second mounting carrier 713 to pass the first mounting carrier 713 The mounting carrier 712 drives the light turning assembly 710 to rotate around the second axis.
更明确地，如图10所示，在该实施例中，一个所述压电行波旋转型超声波致动器7300被安装于所述第一安装载体712的底部，用于驱动安装于所述第一安装载体712的所述光转折组件710绕着第一轴旋转，以进行第一方向的光学防抖。另一个所述压电行波旋转型超声波致动器7300被安装于所述第二安装载体713的侧部，用于转动所述第二安装载体713以通过所述第二安装载体713作为传动桥梁带动所述第一安装载体712进而带动所述光转折组件710绕着第二轴旋转，以进行第二方向的光学防抖。More specifically, as shown in FIG. 10 , in this embodiment, one of the piezoelectric traveling wave rotary ultrasonic actuators 7300 is mounted on the bottom of the first mounting carrier 712 for driving and mounting on the The light turning assembly 710 of the first mounting carrier 712 rotates around the first axis to perform optical anti-shake in the first direction. Another piezoelectric traveling wave rotary ultrasonic actuator 7300 is mounted on the side of the second mounting carrier 713 for rotating the second mounting carrier 713 to pass through the second mounting carrier 713 as a transmission The bridge drives the first mounting carrier 712 and then drives the light deflection component 710 to rotate around the second axis, so as to perform optical image stabilization in the second direction.
在该变形实施例中，所述第一轴为Z轴，所述第一方向为所述感光芯片的X轴方向，所述第二轴为X轴，所述第二方向为所述感光芯片的Z轴方向。In this variant embodiment, the first axis is the Z axis, the first direction is the X axis direction of the photosensitive chip, the second axis is the X axis, and the second direction is the photosensitive chip the Z-axis direction.
值得一提的是，在本申请其他示例中，所述第三驱动模块747还可以仅包括一个所述压电行波旋转型超声波致动器7300，其被配置为驱动所述光转折组件710绕着一个轴旋转，以进行一个方向的光学防抖，对此，并不为本申请所局限。It is worth mentioning that, in other examples of the present application, the third driving module 747 may also include only one piezoelectric traveling wave rotary ultrasonic actuator 7300, which is configured to drive the light turning assembly 710 Rotating around one axis to perform optical anti-shake in one direction is not limited by this application.
图12图示了根据本申请实施例的所述潜望式摄像模组的又一变形实施的示意图。在该变形实施例中，所述第三驱动模块747包括至少两个第三驱动元件7471，其中，一个所述第三驱动元件7471被配置为驱动所述感光组件730在垂直于所述光轴的平面内沿着第一方向移动，而另一个所述第三驱动元件7471被配置为驱动所述光转折组件710绕着第一轴旋转。也就是，在该变形实施例中，所述第三驱动模块747的作用对象为：所述光转折组件710和所述感光组件730，以通过分别驱动所述光转折组件710和所述感光组件730，实现所述潜望式摄像模组在两个方向上的光学防抖功能配置。FIG. 12 is a schematic diagram illustrating yet another variant implementation of the periscope camera module according to an embodiment of the present application. In this variant embodiment, the third driving module 747 includes at least two third driving elements 7471, wherein one of the third driving elements 7471 is configured to drive the photosensitive assembly 730 in a direction perpendicular to the optical axis The third driving element 7471 is configured to drive the light turning assembly 710 to rotate around the first axis. That is, in this modified embodiment, the role of the third driving module 747 is: the light deflection assembly 710 and the photosensitive assembly 730, so as to drive the light deflection assembly 710 and the photosensitive assembly respectively by driving the light deflection assembly 710 and the photosensitive assembly 730 , realize the configuration of the optical anti-shake function of the periscope camera module in two directions.
在如图12所示意的示例中，一个所述第三驱动元件7471被实施为压电致动器7100，另一个所述第三驱动元件7471被实施为压电行波旋转型超声波致动器7300，其中，所述压电致动器7100被配置为驱动所述感光组件730在垂直于所述光轴的平面内沿着第一方向移动以进行第一方向的光学防抖，所述压电行波旋转型超声波致动器7300被配置为驱动所述光转折组件710绕着第一轴旋转，以进行第二方向的光学防抖。在一个具体示例中，所述第一光学防抖方向为X轴方向，所述第一轴为X轴，所述第二光学防抖方向为Z轴方向。In the example illustrated in FIG. 12 , one of the third driving elements 7471 is implemented as a piezoelectric actuator 7100, and the other of the third driving elements 7471 is implemented as a piezoelectric traveling wave rotary type ultrasonic actuator 7300, wherein the piezoelectric actuator 7100 is configured to drive the photosensitive component 730 to move along a first direction in a plane perpendicular to the optical axis to perform optical image stabilization in the first direction, the pressure The electric traveling wave rotation type ultrasonic actuator 7300 is configured to drive the light turning component 710 to rotate around the first axis, so as to perform optical anti-shake in the second direction. In a specific example, the first optical anti-shake direction is the X-axis direction, the first axis is the X-axis, and the second optical anti-shake direction is the Z-axis direction.
这里，如何通过所述压电致动器7100驱动所述感光组件730沿着所述X轴方向移动以及如何通过所述压电行波旋转型超声波致动器7300驱动所述光转折组件710绕着第一轴旋转已经在前述的描述中充分论述，为避免累赘，在此不再赘述。Here, how to drive the photosensitive component 730 to move along the X-axis direction by the piezoelectric actuator 7100 and how to drive the light turning component 710 to rotate around the piezoelectric traveling wave rotary ultrasonic actuator 7300 The rotation about the first axis has been fully discussed in the foregoing description, and to avoid redundancy, it will not be repeated here.
值得一提的是，虽然在如图12所示意的示例中，以一个所述第三驱动元件7471被实施为压电致动器7100，另一个所述第三驱动元件7471被实施为压电行波旋转型超声波致动器7300为示例，应可以理解，在本申请其他示例中所述第三驱动模块747还可以包括其他类型的驱动元件的组合，例如，一个所述第三驱动元件7471被实施为压电致动器7100，另一个所述第三驱动元件7471被实施为电磁式马达7200，对此，并不为本申请所局限。It is worth mentioning that although in the example illustrated in FIG. 12 , one of the third driving elements 7471 is implemented as a piezoelectric actuator 7100 , and the other third driving element 7471 is implemented as a piezoelectric The traveling wave rotary ultrasonic actuator 7300 is an example, and it should be understood that in other examples of the present application, the third driving module 747 may also include combinations of other types of driving elements, for example, one of the third driving elements 7471 The third driving element 7471 is implemented as a piezoelectric actuator 7100, and the other third driving element 7471 is implemented as an electromagnetic motor 7200, which is not limited by the present application.
综上，基于本申请实施例的所述潜望式摄像模组被阐明，其中，所述潜望式摄像模组的部分驱动机构采用压电致动器作为驱动器以提供足够大的驱动力和相对更佳的驱动性能。并且，所述压电致动器以合理方式被布设于所述可变焦潜望式摄像模组中，以满足所述潜望式摄像模组在功能、结构和尺寸等方面的设计要求。To sum up, the periscope camera module based on the embodiments of the present application is clarified, wherein part of the driving mechanism of the periscope camera module adopts piezoelectric actuators as drivers to provide a sufficiently large driving force and Relatively better drive performance. In addition, the piezoelectric actuator is arranged in the variable-focus periscope camera module in a reasonable manner to meet the design requirements of the periscope camera module in terms of function, structure and size.
示例性可变焦摄像模组Exemplary zoom camera module
图13图示了根据本申请实施例的可变焦摄像模组的示意图。如图13所示，根据本申请实施例的所述可变焦摄像模组被实施为潜望式摄像模组，其包括：光转折元件810、变焦透镜组820、感光组件830和驱动组件840。FIG. 13 illustrates a schematic diagram of a variable-focus camera module according to an embodiment of the present application. As shown in FIG. 13 , the variable-focus camera module according to the embodiment of the present application is implemented as a periscope camera module, which includes: a light turning element 810 , a zoom lens group 820 , a photosensitive component 830 and a driving component 840 .
相应地，如图13和图14所示，在本申请实施例中，所述光转折元件810，用于接收来自被摄目标的成像光线，并将该成像光线转折至所述变焦透镜组820。特别地，在本申请实施例中，所述光转折元件810被配置为将来自被 摄目标的成像光线进行90°的转折，以使得所述可变焦摄像模组的整体高度尺寸可得以缩减。这里，考虑到制造公差，在实际工作过程中，所述光转折元件810对成像光线进行转折的角度可能存在1°以内的误差，对此，本领域普通技术人员应可以理解。Correspondingly, as shown in FIG. 13 and FIG. 14 , in the embodiment of the present application, the light turning element 810 is used to receive the imaging light from the subject, and turn the imaging light to the zoom lens group 820 . Particularly, in the embodiment of the present application, the light turning element 810 is configured to turn the imaging light from the photographed object by 90°, so that the overall height dimension of the zoom camera module can be reduced. Here, considering the manufacturing tolerance, in the actual working process, the angle of the light turning element 810 turning the imaging light may have an error within 1°, which should be understood by those of ordinary skill in the art.
在本申请的具体示例中，所述光转折元件810可被实施为反射镜(例如，平面反射镜)，或者，光转折棱镜(例如，三棱镜)。例如，当所述光转折元件810被实施为光转折棱镜时，所述光转折棱镜的光入射面与其光出射面相互垂直且所述光转折棱镜的光反射面与所述光入射面和所述光出射面成845°角倾斜，这样，当成像光线以垂直于所述光入射面的方式进入所述光转折棱镜后，该成像光线能够在所述光反射面处发生90°转折，以垂直于所述光出射面的方式从所述光出射面输出。In a specific example of the present application, the light-reflecting element 810 may be implemented as a mirror (eg, a flat mirror), or a light-reflecting prism (eg, a triangular prism). For example, when the light turning element 810 is implemented as a light turning prism, the light incident surface of the light turning prism and its light emitting face are perpendicular to each other, and the light reflecting surface of the light turning prism is perpendicular to the light incident face and the light emitting face thereof. The light exit surface is inclined at an angle of 845°, so that when the imaging light enters the light turning prism in a manner perpendicular to the light incident surface, the imaging light can be turned 90° at the light reflecting surface, so that output from the light exit surface in a manner perpendicular to the light exit surface.
当然，在本申请其他示例中，所述光转折元件810还可以被实施为其他类型的光学元件，对此，并不为本申请所局限。并且，在本申请实施例中，所述可变焦摄像模组还可以包括更多数量的光转折元件810，其一个原因在于：引入所述光转折元件810的一个作用为：对成像光线进行转折，以对具有较长光学总长(TTL：Total Track Length)的所述可变焦摄像模组的光学系统能够进行结构维度上的折叠。相应地，当所述可变焦摄像模组的光学总长(TTL)过长时，可设置更多数量的光转折元件810，以满足所述可变焦摄像模组的尺寸要求，例如可以设置所述光转折元件810于所述可变焦摄像模组的像侧或者所述变焦透镜组820中任意两个透镜之间。Of course, in other examples of the present application, the light deflection element 810 may also be implemented as other types of optical elements, which are not limited by the present application. In addition, in the embodiment of the present application, the variable-focus camera module may further include a larger number of light-reversing elements 810. One reason for this is that one of the functions of introducing the light-reversing elements 810 is to turn the imaging light. , so that the optical system of the zoom camera module with a longer total optical length (TTL: Total Track Length) can be folded in the structural dimension. Correspondingly, when the total optical length (TTL) of the zoom camera module is too long, a larger number of light turning elements 810 can be provided to meet the size requirements of the zoom camera module. For example, the The light deflection element 810 is located on the image side of the variable-focus camera module or between any two lenses in the zoom lens group 820 .
如图13和图14所示，在本申请实施例中，所述变焦透镜组820对应于所述光转折元件810，用于接收来自所述光转折元件810的成像光线以该成像光线进行汇聚。相应地，如图14所示，所述变焦透镜组820沿着其所设定的光轴方向，包括：固定部分821、变焦部分822和对焦部分823，其中，所述变焦部分822和所述对焦部分823能够在所述驱动组件840的作用下相对于所述固定部分821的位置分别进行调整，从而实现所述可变焦摄像模组的光学性能的调整，包括但不限于光学对焦和光学变焦功能。具体地，可通过所述驱动组件840调整所述变焦部分822和所述对焦部分823，以使得所述可变焦摄像模组的变焦透镜组820的焦距被调整，从而能够清楚地拍摄不同距离的被摄对象。As shown in FIG. 13 and FIG. 14 , in the embodiment of the present application, the zoom lens group 820 corresponds to the light refraction element 810 and is used for receiving the imaging light from the light refraction element 810 and condensing the imaging light . Correspondingly, as shown in FIG. 14 , the zoom lens group 820 includes a fixed part 821 , a zoom part 822 and a focus part 823 along its set optical axis direction, wherein the zoom part 822 and the focus part 823 The focusing portion 823 can be adjusted with respect to the position of the fixed portion 821 under the action of the driving assembly 840, so as to realize the adjustment of the optical performance of the zoom camera module, including but not limited to optical focusing and optical zooming Function. Specifically, the zoom part 822 and the focus part 823 can be adjusted by the drive assembly 840, so that the focal length of the zoom lens group 820 of the variable-focus camera module can be adjusted, so that images of different distances can be clearly captured. subject.
具体地，在本申请实施例中，所述固定部分821包括第一镜筒和被容置 于所述第一镜筒内的至少一光学透镜。在本申请实施例中，所述固定部分821适于被固定于所述驱动组件840中非移动部分，以使得所述固定部分821在所述变焦透镜组820中位置保持恒定。Specifically, in the embodiment of the present application, the fixing portion 821 includes a first lens barrel and at least one optical lens accommodated in the first lens barrel. In the embodiment of the present application, the fixed portion 821 is adapted to be fixed to the non-moving portion of the driving assembly 840 , so that the position of the fixed portion 821 in the zoom lens group 820 remains constant.
值得一提的是，在本申请其他示例中，所述固定部分821也可以不设有所述第一镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述固定部分821可被实施为“裸镜头”。It is worth mentioning that, in other examples of the present application, the fixing portion 821 may not be provided with the first lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that fit with each other. lens. That is, in other examples of the application, the fixed portion 821 may be implemented as a "bare lens".
具体地，在本申请实施例中，所述变焦部分822包括第二镜筒和被容置于所述第二镜筒内的至少一光学透镜，其中，所述变焦部分822适于被所述驱动组件840所驱动以沿着所述变焦透镜组820所设定的光轴方向上进行移动，从而实现所述可变焦摄像模组的光学变焦功能，以使得所述可变焦摄像模组能够实现对不同距离的被摄目标的清晰拍摄。Specifically, in the embodiment of the present application, the zoom portion 822 includes a second lens barrel and at least one optical lens accommodated in the second lens barrel, wherein the zoom portion 822 is suitable for being used by the second lens barrel. The driving component 840 is driven to move along the optical axis direction set by the zoom lens group 820, so as to realize the optical zoom function of the zoom camera module, so that the zoom camera module can realize Clear shots of subjects at different distances.
值得一提的是，在本申请其他示例中，所述变焦部分822也可以不设有所述第二镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述变焦部分822也可被实施为“裸镜头”。It is worth mentioning that in other examples of the present application, the zoom portion 822 may not be provided with the second lens barrel, but only includes at least one optical lens, for example, it only includes a plurality of optical pieces that are fitted with each other lens. That is, in other examples of the application, the zoom portion 822 may also be implemented as a "bare lens".
具体地，在本申请实施例中，所述对焦部分823包括第三镜筒和被容置于所述第三镜筒内的至少一光学透镜，其中，所述对焦部分823适于被所述驱动组件840所驱动以沿着所述变焦透镜组820所设定的光轴方向上进行移动，从而实现所述可变焦摄像模组的对焦功能。更明确地，通过驱动所述对焦部分823所实现的光学对焦能够补偿因移动所述变焦部分822而导致的焦点偏移，从而补偿所述可变焦摄像模组的成像性能，使得其成像质量满足预设要求。Specifically, in the embodiment of the present application, the focusing portion 823 includes a third lens barrel and at least one optical lens accommodated in the third lens barrel, wherein the focusing portion 823 is suitable for being used by the third lens barrel. The driving component 840 is driven to move along the direction of the optical axis set by the zoom lens group 820, so as to realize the focusing function of the zoom camera module. More specifically, the optical focusing achieved by driving the focusing part 823 can compensate for the focus shift caused by moving the zooming part 822, thereby compensating the imaging performance of the zoom camera module, so that the imaging quality thereof satisfies the requirements. Default requirements.
值得一提的是，在本申请其他示例中，所述对焦部分823也可以不设有所述第三镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述对焦部分823也可被实施为“裸镜头”。It is worth mentioning that, in other examples of the present application, the focusing portion 823 may not be provided with the third lens barrel, but only includes at least one optical lens, for example, it only includes a plurality of optical pieces fitted with each other lens. That is, in other examples of the application, the focusing portion 823 may also be implemented as a "bare lens".
更具体地，如图13和图14所示，在本申请实施例中，所述变焦透镜组820的固定部分821、所述变焦部分822和所述对焦部分823被依次地设置(也就是，在所述变焦透镜组820中，所述变焦部分822位于所述固定部分821和所述对焦部分823之间)，即，来自所述光转折元件810的成像光 线在穿过所述变焦透镜组820时，其将依次透过所述固定部分821、再透过所述变焦部分822，然后，再穿过所述对焦部分823。More specifically, as shown in FIGS. 13 and 14 , in the embodiment of the present application, the fixed part 821 , the zoom part 822 and the focus part 823 of the zoom lens group 820 are arranged in sequence (that is, In the zoom lens group 820, the zoom portion 822 is located between the fixed portion 821 and the focus portion 823), that is, the imaging light from the light-refracting element 810 passes through the zoom lens group 820, it will pass through the fixed part 821, then through the zoom part 822, and then through the focusing part 823 in sequence.
当然，在本申请的其他示例中，也可以调整所述固定部分821、所述变焦部分822和所述对焦部分823之间的相对位置关系，例如，将所述固定部分821设置于所述变焦部分822和所述对焦部分823之间，再如，将所述对焦部分823设置于所述变焦部分822和所述固定部分821之间。应可以理解，在本申请实施例中，所述固定部分821、所述变焦部分822和所述对焦部分823之间的相对位置关系可根据所述可变焦摄像模组的光学设计要求和结构设计要求进行调整。Of course, in other examples of the present application, the relative positional relationship between the fixed part 821 , the zooming part 822 and the focusing part 823 can also be adjusted. For another example, the focusing portion 823 is disposed between the zooming portion 822 and the fixing portion 821 . It should be understood that in the embodiment of the present application, the relative positional relationship between the fixed part 821 , the zoom part 822 and the focus part 823 can be designed according to the optical design requirements and structural design of the zoom camera module adjustment is required.
但特别地，在本申请实施例中，考虑到所述可变焦摄像模组的结构设计，优选地，所述对焦部分823和所述变焦部分822相邻地设置。也就是，根据本申请实施例的所述变焦透镜组820中各个部分的位置，优选地被配置为：所述变焦部分822位于所述固定部分821和所述对焦部分823之间，或者，所述对焦部分823位于所述固定部分821和所述变焦部分822之间。应可以理解，所述变焦部分822和所述对焦部分823是所述变焦透镜组820中需要移动的部分，因此，将所述对焦部分823和所述变焦部分822相邻地设置，这样的位置设定有利于布置所述驱动组件840，关于此部分将在所述驱动组件840的具体描述中展开。However, in particular, in the embodiment of the present application, in consideration of the structural design of the variable-focus camera module, preferably, the focusing portion 823 and the zooming portion 822 are disposed adjacent to each other. That is, the position of each part in the zoom lens group 820 according to the embodiment of the present application is preferably configured such that the zoom part 822 is located between the fixed part 821 and the focusing part 823, or, all the The focusing portion 823 is located between the fixing portion 821 and the zooming portion 822 . It should be understood that the zooming part 822 and the focusing part 823 are parts of the zoom lens group 820 that need to be moved. Therefore, the focusing part 823 and the zooming part 822 are arranged adjacent to each other. Such a position The setting facilitates the arrangement of the drive assembly 840 , which will be expanded in the detailed description of the drive assembly 840 .
还值得一提的是，在如图14所示意的示例中，虽然以所述变焦透镜组820，包括一个所述固定部分821、一个所述变焦部分822和一个所述对焦部分823为示例，但是，本领域普通技术人员应知晓，在本申请其他示例中，所述固定部分821、所述变焦部分822和所述对焦部分823的具体数量选择，并不为本申请所局限，其可根据所述可变焦摄像模组的光学设计要求进行调整。It is also worth mentioning that in the example shown in FIG. 14 , although the zoom lens group 820 includes one of the fixed parts 821 , one of the zoom parts 822 and one of the focus parts 823 as an example, However, those of ordinary skill in the art should know that in other examples of the present application, the selection of the specific number of the fixing portion 821, the zooming portion 822 and the focusing portion 823 is not limited by the present application, and may be selected according to The optical design requirements of the variable-focus camera module are adjusted.
为了对进入所述感光组件830的成像光线进行限制，在本申请一些示例中，所述可变焦摄像模组，进一步包括设置于所述感光组件830的感光路径上的光阻挡元件(未有图示意)，其中，所述光阻挡元件能够至少部分地阻挡成像光线投射，以尽可能地减少杂散光对所述可变焦摄像模组的成像质量的影响。In order to limit the imaging light entering the photosensitive assembly 830, in some examples of the present application, the variable-focus camera module further includes a light blocking element (not shown in the figure) disposed on the photosensitive path of the photosensitive assembly 830 Schematic), wherein the light blocking element can at least partially block the projection of imaging light, so as to reduce the influence of stray light on the imaging quality of the variable-focus camera module as much as possible.
如图14所示，在本申请实施例中，所述感光组件830对应于所述变焦透镜组820，用于接收来自所述变焦透镜组820的成像光线并进行成像，其 中，所述感光组件830包括线路板831、电连接于所述线路板831的感光芯片832和被保持于所述感光芯片832的感光路径上的滤光元件833。更具体地，在如图14所示意的示例中，所述感光组件830，进一步包括设置于所述线路板831的支架834，其中，所述滤光元件833被安装于所述支架834上以被保持于所述感光芯片832的感光路径上。As shown in FIG. 14 , in the embodiment of the present application, the photosensitive component 830 corresponds to the zoom lens group 820 and is used to receive the imaging light from the zoom lens group 820 and perform imaging, wherein the photosensitive component 830 includes a circuit board 831 , a photosensitive chip 832 electrically connected to the circuit board 831 , and a filter element 833 held on the photosensitive path of the photosensitive chip 832 . More specifically, in the example shown in FIG. 14 , the photosensitive assembly 830 further includes a bracket 834 disposed on the circuit board 831 , wherein the filter element 833 is mounted on the bracket 834 to are held on the photosensitive path of the photosensitive chip 832 .
值得一提的是，在本申请其他示例中，所述滤光元件833被保持于所述感光芯片832的感光路径上的具体实施方式并不为本申请所局限，例如，所述滤光元件833可被实施为滤波膜并涂覆于所述变焦透镜组820的某一光学透镜的表面，以起到滤光的效果，再如，所述感光组件830可进一步包括安装于所述支架的滤光元件支架(未有图示意)，其中，所述滤光元件833以被安装于所述滤光元件支架的方式被保持于所述感光芯片832的感光路径上。It is worth mentioning that, in other examples of the present application, the specific implementation of the filter element 833 held on the photosensitive path of the photosensitive chip 832 is not limited by the present application. For example, the filter element 833 can be implemented as a filter film and coated on the surface of a certain optical lens of the zoom lens group 820 to have a filtering effect. For another example, the photosensitive component 830 can further include a film mounted on the bracket. A filter element holder (not shown), wherein the filter element 833 is held on the photosensitive path of the photosensitive chip 832 by being mounted on the filter element holder.
如前所述，为了满足越来越广泛的市场需求，高像素、大芯片、小尺寸是现有摄像模组不可逆转的发展趋势。随着所述感光芯片832朝着高像素和大芯片的方向发展，与所述感光芯片832适配的所述变焦透镜组820的尺寸也逐渐增大，这给用于驱动所述变焦透镜组820的所述对焦部分823和所述变焦部分822的驱动元件提出了新的技术要求。As mentioned above, in order to meet more and more extensive market demands, high pixel, large chip, and small size are the irreversible development trends of existing camera modules. As the photosensitive chip 832 develops in the direction of high pixels and large chips, the size of the zoom lens group 820 adapted to the photosensitive chip 832 also increases gradually. The driving elements of the focusing part 823 and the zooming part 822 of the 820 put forward new technical requirements.
新的技术要求主要集中于两个方面：相对更大的驱动力，以及，更优的驱动性能(具体地包括：更高精度的驱动控制和更长的驱动行程)。并且，除了需要寻找满足新技术要求的驱动器以外，在选择新驱动器时还需要考虑所选择的驱动器能够适应于当下摄像模组轻型化和薄型化的发展趋势。The new technical requirements mainly focus on two aspects: relatively larger driving force, and better driving performance (specifically including: higher-precision driving control and longer driving stroke). Moreover, in addition to finding a driver that meets the requirements of new technologies, it is also necessary to consider whether the selected driver can adapt to the current development trend of lightening and thinning of camera modules when selecting a new driver.
经研究和试验，本申请发明人提出了一种具有新型结构的压电致动器，该压电致动器能够满足所述可变焦摄像模组对于驱动器的技术要求。并且，进一步地采用合适的布置方式将所述压电致动器布置于所述可变焦摄像模组内，以使得其满足所述可变焦摄像模组的结构设计要求和尺寸设计要求。After research and experimentation, the inventor of the present application proposes a piezoelectric actuator with a novel structure, which can meet the technical requirements of the variable-focus camera module for the driver. Furthermore, the piezoelectric actuator is further arranged in the variable-focus camera module in an appropriate arrangement manner, so that it meets the structural design requirements and size design requirements of the variable-focus camera module.
具体地，如图13所示，在本申请实施例中，用于驱动所述变焦透镜组820的所述驱动组件840，包括：驱动壳体841、第一驱动元件842、第二驱动元件843、第一载体844和第二载体845，其中，所述第一驱动元件842、所述第二驱动元件843、所述第一载体844和第二载体845被收容于所述驱动壳体841内，这样所述可变焦摄像模组具有相对更为紧凑的结构布置。Specifically, as shown in FIG. 13 , in this embodiment of the present application, the driving assembly 840 for driving the zoom lens group 820 includes: a driving housing 841 , a first driving element 842 , and a second driving element 843 , a first carrier 844 and a second carrier 845, wherein the first driving element 842, the second driving element 843, the first carrier 844 and the second carrier 845 are accommodated in the driving housing 841 , so that the variable-focus camera module has a relatively more compact structural arrangement.
具体地，在该实施例中，所述第一驱动元件842和所述第二驱动元件 843被实施为压电致动器8100，所述变焦部分822被安装于所述第一载体844，所述对焦部分823被安装于所述第二载体845，其中，所述第一驱动元件842被配置为驱动所述第一载体844以带动所述变焦部分822沿着该光轴所设定的方向移动，所述第二驱动元件843被配置为驱动所述第二载体845以带动所述对焦部分823沿着该光轴所设定的方向移动，通过这样的方式，进行光学变焦。也就是，在本申请实施例中，以压电致动器8100作为驱动器，用于驱动所述变焦透镜组中的所述变焦部分822和所述对焦部分823。Specifically, in this embodiment, the first driving element 842 and the second driving element 843 are implemented as piezoelectric actuators 8100, and the zoom portion 822 is mounted on the first carrier 844, so The focusing portion 823 is mounted on the second carrier 845, wherein the first driving element 842 is configured to drive the first carrier 844 to drive the zoom portion 822 along the direction set by the optical axis Moving, the second driving element 843 is configured to drive the second carrier 845 to drive the focusing portion 823 to move along the direction set by the optical axis, and in this way, optical zooming is performed. That is, in the embodiment of the present application, the piezoelectric actuator 8100 is used as a driver for driving the zoom portion 822 and the focus portion 823 in the zoom lens group.
图15图示了根据申请实施例的压电致动器的示意图。如图15所示，根据本申请实施例的所述压电致动器8100，包括：压电主动部8110和可传动地连接于所述压电主动部8110的摩擦驱动部8120，其中，在所述压电致动器8100被导通后，所述摩擦驱动部8120在所述压电主动部8110作用下被配置为提供用于驱动所述第一载体844或所述第二载体845的驱动力。15 illustrates a schematic diagram of a piezoelectric actuator according to an embodiment of the application. As shown in FIG. 15 , the piezoelectric actuator 8100 according to the embodiment of the present application includes: a piezoelectric active part 8110 and a friction driving part 8120 drivably connected to the piezoelectric active part 8110 , wherein, in the After the piezoelectric actuator 8100 is turned on, the friction driving part 8120 is configured to provide a driving force for driving the first carrier 844 or the second carrier 845 under the action of the piezoelectric active part 8110 . driving force.
具体地，在该实施例中，所述压电主动部8110被实施为压电陶瓷元件，其具有条状结构。如图15所示，所述压电主动部8110为压电层叠结构，其具有多组相互交替设置的第一极化区域A1和第二极化区域A2，所述第一极化区域A1和所述第二极化区域A2具有相反的极化方向，其中，在所述压电致动器8100被导通后，相互交替设置的多组所述第一极化区域A1和所述第二极化区域A2发生不同方向的形变以带动所述摩擦驱动部8120以行波的方式沿着预设方向运动，以提供用于驱动第一载体844或所述第二载体845的驱动力，如图16所示。Specifically, in this embodiment, the piezoelectric active part 8110 is implemented as a piezoelectric ceramic element, which has a strip-like structure. As shown in FIG. 15 , the piezoelectric active part 8110 is a piezoelectric laminated structure, which has multiple groups of first polarized regions A1 and second polarized regions A2 arranged alternately with each other. The first polarized regions A1 and The second polarization regions A2 have opposite polarization directions, wherein after the piezoelectric actuator 8100 is turned on, multiple groups of the first polarization regions A1 and the second polarization regions A1 and the second polarization regions are alternately arranged. The polarization area A2 is deformed in different directions to drive the friction driving part 8120 to move along a preset direction in the manner of traveling waves, so as to provide a driving force for driving the first carrier 844 or the second carrier 845 , such as Figure 16.
更具体地，进一步参考图16，在该实施例中，所述压电主动部8110具有多组相互交替设置的第一极化区域A1和第二极化区域A2，所述第一极化区域A1和所述第二极化区域A2的极化方向相反。这里，应注意到，在该实施例中，多组相互交替的所述第一极化区域A1和所述第二极化区域A2以并排的方式进行布置，即，多组相互交替的所述第一极化区域A1和所述第二极化区域A2处于同一直线上。并且，所述压电主动部8110通过导线被电连接于外部激励电源，从而在给所述压电主动部8110提供电源激励后，通过所述压电主动部8110的逆压电效应所述压电主动部8110发生形变。应可以理解，所述压电主动部8110的形变将带动所述摩擦驱动部8120以行波的方式运动，也就是，所述压电主动部8110的形变能够被传递至所述 摩擦驱动部8120，以通过所述摩擦驱动部8120的行波运动提供用于驱动所述第一载体844或所述第二载体845的驱动力。More specifically, with further reference to FIG. 16 , in this embodiment, the piezoelectric active part 8110 has a plurality of sets of first polarized regions A1 and second polarized regions A2 arranged alternately with each other, the first polarized regions The polarization directions of A1 and the second polarization region A2 are opposite. Here, it should be noted that in this embodiment, multiple sets of the first polarized area A1 and the second polarized area A2 that alternate with each other are arranged in a side-by-side manner, that is, multiple sets of the alternately set of the first polarized areas A1 and A2 are arranged side by side. The first polarized area A1 and the second polarized area A2 are on the same straight line. In addition, the piezoelectric active part 8110 is electrically connected to an external excitation power supply through a wire, so that after the piezoelectric active part 8110 is provided with power excitation, the piezoelectric active part 8110 has an inverse piezoelectric effect. The electroactive part 8110 is deformed. It should be understood that the deformation of the piezoelectric active part 8110 will drive the friction driving part 8120 to move in a traveling wave manner, that is, the deformation of the piezoelectric active part 8110 can be transmitted to the friction driving part 8120 , so as to provide a driving force for driving the first carrier 844 or the second carrier 845 through the traveling wave motion of the friction driving part 8120 .
值得一提的是，在本申请其他示例中，每组所述第一极化区域A1和第二极化区域A2也可以具有相同的极化方向，其中，在所述压电致动器8100被导通后，通过给每组所述第一极化区域A1和所述第二极化区域A2输入交替的电压信号，相互交替设置的多组所述第一极化区域A1和所述第二极化区域A2发生不同方向的形变以带动所述摩擦驱动部8120以驻波的方式沿着预设方向运动，对此，并不为本申请所局限。It is worth mentioning that in other examples of the present application, each group of the first polarization region A1 and the second polarization region A2 may also have the same polarization direction, wherein, in the piezoelectric actuator 8100 After being turned on, by inputting alternating voltage signals to each group of the first polarization area A1 and the second polarization area A2, multiple groups of the first polarization area A1 and the first polarization area A1 and the first polarization area A1 are alternately arranged. The polarization region A2 is deformed in different directions to drive the friction driving portion 8120 to move along a predetermined direction in the form of a standing wave, which is not limited by the present application.
进一步地，在该实施例中，如图15所示，所述摩擦驱动部8120包括多个相互间隔设置的摩擦驱动元件8121，其中，每个所述摩擦驱动元件8121的第一端耦接于所述压电主动部8110，通过这样的方式使得所述摩擦驱动部8120可传动地连接于所述压电主动部8110。这里，所述多个摩擦驱动元件8121的数量可以为2、3、4或者更多，优选地，所述摩擦驱动元件8121的数量超过3(即，大于等于3)，通过这样的数量配置，使得在实现所述压电致动器8100稳定输出线性驱动力的同时还能控制所述压电致动器8100的长度尺寸，使其适于装入摄像模组等体积相对较小的器件中。在该实施例中，所述压电致动器8100的长度尺寸几近等于所述压电主动部8110的尺寸(而所述压电主动部8110具有长条状)，量化来看，在该实施例中，所述压电致动器100的长度尺寸小于等于20mm，优选地，其长度尺寸小于等于10mm。Further, in this embodiment, as shown in FIG. 15 , the friction driving part 8120 includes a plurality of friction driving elements 8121 spaced apart from each other, wherein the first end of each friction driving element 8121 is coupled to the The piezoelectric active part 8110 is connected to the piezoelectric active part 8110 in such a way that the friction driving part 8120 can be driveably connected. Here, the number of the plurality of friction driving elements 8121 may be 2, 3, 4 or more, preferably, the number of the friction driving elements 8121 exceeds 3 (ie, greater than or equal to 3). So that the piezoelectric actuator 8100 can control the length dimension of the piezoelectric actuator 8100 while realizing the stable output of the linear driving force, so that it is suitable for being installed in a relatively small device such as a camera module. . In this embodiment, the length dimension of the piezoelectric actuator 8100 is almost equal to the dimension of the piezoelectric active part 8110 (and the piezoelectric active part 8110 has an elongated shape). In an embodiment, the length dimension of the piezoelectric actuator 100 is less than or equal to 20 mm, preferably, the length dimension thereof is less than or equal to 10 mm.
更优选地，在该实施例中，所述多个摩擦驱动元件8121位于所述压电主动部8110的中部区域，这样在通过所述多个摩擦驱动元件8121驱动被作用对象时，被驱动对象的移动会更加平稳且线性度更佳。More preferably, in this embodiment, the plurality of friction driving elements 8121 are located in the middle region of the piezoelectric active part 8110, so that when the acted object is driven by the plurality of friction driving elements 8121, the driven object will move more smoothly and linearly.
应注意到，在该实施例中，所述摩擦驱动元件8121具有柱状结构，其突出于所述压电主动部8110的上表面。从外表来看，所述压电致动器8100具有齿条状。应可以理解，在本申请其他示例中，所述摩擦驱动元件8121还可以被实施为其他形状，例如，其截面形状可被设置为梯形，对此，并不为本申请所局限。It should be noted that, in this embodiment, the friction driving element 8121 has a columnar structure, which protrudes from the upper surface of the piezoelectric active part 8110 . From the outside, the piezoelectric actuator 8100 has a rack shape. It should be understood that in other examples of the present application, the friction driving element 8121 may also be implemented in other shapes, for example, its cross-sectional shape may be set to be a trapezoid, which is not limited by the present application.
值得一提的是，当所述摩擦驱动元件8121的数量超过82个时，即大于等于3时，优选地，所述至少3个摩擦驱动元件8121等距地相间设置，这样有利于提升所述压电致动器8100的驱动稳定性。It is worth mentioning that when the number of the friction driving elements 8121 exceeds 82, that is, when the number is greater than or equal to 3, preferably, the at least three friction driving elements 8121 are arranged equidistantly and alternately, which is conducive to improving the Driving stability of the piezoelectric actuator 8100.
进一步地，如图15所示，在该实施例中，当所述压电致动器8100未被导通时，所述多个摩擦驱动元件8121的与所述第一端相对的第二端的多个端面处于同一平面，例如，在如图15所示意的示例中，所述多个摩擦驱动元件8121的第二端的端面处于同一水平面上。也就是，在该实施例中，所述多个摩擦驱动元件8121的第二端的端面形成同一平面。相应地，在本申请一些实施例中，可进一步地在该平面上(即，在所述多个摩擦驱动元件8121的第二端的端面所界定的平面)施加一层摩擦材料，以增加摩擦力。Further, as shown in FIG. 15 , in this embodiment, when the piezoelectric actuator 8100 is not turned on, the second ends of the plurality of friction driving elements 8121 opposite to the first ends The plurality of end faces are on the same plane, for example, in the example shown in FIG. 15 , the end faces of the second ends of the plurality of friction driving elements 8121 are on the same horizontal plane. That is, in this embodiment, the end surfaces of the second ends of the plurality of friction driving elements 8121 form the same plane. Correspondingly, in some embodiments of the present application, a layer of friction material may be further applied on the plane (ie, the plane defined by the end surfaces of the second ends of the plurality of friction driving elements 8121 ) to increase the frictional force .
值得一提的是，在实际应用中，通常还会在所述摩擦驱动部8120的上表面设置一个动子，以通过所述动子来传递所述摩擦驱动部8120所提供的行波式驱动力并作用于被驱动对象。也就是，在所述摩擦驱动部8120和被驱动对象之间设置摩擦作动部8130(所述摩擦作动部8130充当所述动子)，这样，当所述压电致动器8100被导通时，所述摩擦驱动部8120的行波式运动将驱动所述摩擦作动部8130直线运动，具体地，所述摩擦作动部8130的直线运动方向与所述摩擦驱动部8120的行波前进方向相反。It is worth mentioning that, in practical applications, a mover is usually arranged on the upper surface of the friction driving part 8120 to transmit the traveling wave drive provided by the friction driving part 8120 through the mover. force and act on the driven object. That is, a friction actuating portion 8130 (the friction actuating portion 8130 serving as the mover) is provided between the friction driving portion 8120 and the driven object, so that when the piezoelectric actuator 8100 is driven When the friction driving part 8120 is turned on, the traveling wave motion of the friction driving part 8120 will drive the friction driving part 8130 to move linearly. Heading in the opposite direction.
为了确保所述摩擦驱动部8120所提供的行波式驱动力能作用于所述摩擦驱动部8120，在安装的过程中，需确保所述摩擦作动部8130和所述压电致动器8100之间施加一定的预压力，以使得所述摩擦驱动部8120能够与所述摩擦作动部8130相抵触，这样，所述摩擦驱动部8120所提供的行波式驱动力才能更有效率地传递至所述摩擦作动部8130。In order to ensure that the traveling wave driving force provided by the friction driving part 8120 can act on the friction driving part 8120, during the installation process, it is necessary to ensure that the friction driving part 8130 and the piezoelectric actuator 8100 A certain pre-pressure is applied between the friction driving parts 8120 and the friction actuating parts 8130, so that the traveling wave driving force provided by the friction driving parts 8120 can be transmitted more efficiently. to the friction action part 8130.
图17图示了根据本申请实施例的所述压电致动器8100的一个变形实施的示意图。如图17所示，在该实施例中，所述压电致动器8100进一步包括：叠置于所述压电主动部8110的摩擦连接层8140，每个所述摩擦驱动元件8121以其第一端固定于所述摩擦连接层8140的方式被耦接于所述压电主动部8110，通过这样的方式，所述压电主动部8110的形变能够通过所述摩擦连接层8140更好地传递至所述摩擦驱动部8120。特别地，在该实施例中，所述摩擦驱动元件8121与所述摩擦连接层8140可具有一体式结构。当然，在一些示例中，所述摩擦驱动元件8121和所述摩擦连接层8140可具有分体式结构，即，两者为单独的部件。17 illustrates a schematic diagram of a variant implementation of the piezoelectric actuator 8100 according to embodiments of the present application. As shown in FIG. 17 , in this embodiment, the piezoelectric actuator 8100 further includes: a frictional connection layer 8140 stacked on the piezoelectric active part 8110 , each of the frictional driving elements 8121 with their first One end is coupled to the piezoelectric active part 8110 by being fixed to the frictional connection layer 8140 , in this way, the deformation of the piezoelectric active part 8110 can be better transmitted through the frictional connection layer 8140 to the friction drive part 8120. In particular, in this embodiment, the frictional driving element 8121 and the frictional connection layer 8140 may have a one-piece structure. Of course, in some examples, the frictional drive element 8121 and the frictional connection layer 8140 may have a split structure, ie, the two are separate components.
进一步地，在本申请实施例中，所述压电致动器8100具有相对更优化的尺寸。量化来看，所述压电致动器8100的长度尺寸小于等于20mm，优选地，长度尺寸小于等于10mm，例如，可以是6mm或者4.82mm。所述压 电致动器8100的宽度尺寸小于等于1mm，优选地，宽度尺寸小于等于0.87mm。所述压电致动器8100的高度尺寸小于等于1mm，这里，所述所述压电致动器8100的高度尺寸由所述压电主动部8110和所述摩擦驱动部8120的尺寸决定。Further, in the embodiment of the present application, the piezoelectric actuator 8100 has a relatively more optimized size. Quantitatively, the length dimension of the piezoelectric actuator 8100 is less than or equal to 20 mm, preferably, the length dimension is less than or equal to 10 mm, for example, it may be 6 mm or 4.82 mm. The width dimension of the piezoelectric actuator 8100 is less than or equal to 1 mm, preferably, the width dimension is less than or equal to 0.87 mm. The height dimension of the piezoelectric actuator 8100 is less than or equal to 1 mm. Here, the height dimension of the piezoelectric actuator 8100 is determined by the dimensions of the piezoelectric active part 8110 and the friction driving part 8120 .
相较于传统的电磁式驱动器，所述压电致动器8100具有体积小、推力大，精度高的优势。量化来看，根据本申请实施例的所述压电致动器8100能够提供的驱动力大小为0.86N至2N，其足以驱动重量大于100mg的部件。Compared with the traditional electromagnetic driver, the piezoelectric actuator 8100 has the advantages of small size, large thrust and high precision. Quantitatively, the piezoelectric actuator 8100 according to the embodiment of the present application can provide a driving force of 0.86N to 2N, which is sufficient to drive a component with a weight greater than 100 mg.
除了能够提供相对较大的驱动力以外，相较于传统的电磁式马达方案和记忆合金马达方案，所述压电致动器8100还具有其他优势，包括但不限于：尺寸相对较小(具有细长状)，响应精度更佳，结构相对更为简单，驱动控制相对更为简单，产品一致性高，没有电磁干扰，具有相对更大的行程，稳定时间短，重量相对较小等。In addition to being able to provide a relatively large driving force, the piezoelectric actuator 8100 has other advantages compared to traditional electromagnetic motor solutions and memory alloy motor solutions, including but not limited to: relatively small size (with Slender shape), better response accuracy, relatively simpler structure, relatively simpler drive control, high product consistency, no electromagnetic interference, relatively larger stroke, short stabilization time, relatively small weight, etc.
具体来说，所述可变焦摄像模组需要其所配置的驱动器具有驱动行程较长且需要保证较好的对准精度等特征。在现有的音圈马达方案中，为了保证运动线性度需要额外设计导杆或滚珠导轨，同时需要在镜头侧部适配大尺寸的驱动磁铁/线圈等，同时需要设置滚珠、弹片、悬丝等辅助定位装置，为容纳较多的部件、保障结构强度和预留结构间隙，往往导致模组横向尺寸偏大，且结构设计复杂，模组重量较重。而记忆合金马达方案，受限于记忆合金方案同比例能够提供的行程相对较少，同时存在潜在断线等可靠性风险。Specifically, the variable-focus camera module requires the driver configured with the variable-focus camera module to have a long driving stroke and to ensure better alignment accuracy. In the existing voice coil motor solution, in order to ensure the linearity of motion, additional guide rods or ball guides need to be designed, and large-sized driving magnets/coils need to be adapted to the side of the lens, and balls, shrapnel, and suspension wires need to be installed. Other auxiliary positioning devices, in order to accommodate more components, ensure structural strength and reserve structural gaps, often lead to large lateral dimensions of the module, complex structural design, and heavy module weight. The memory alloy motor solution is limited by the relatively small stroke that the memory alloy solution can provide in the same proportion, and there are reliability risks such as potential disconnection.
而所述压电致动器8100具有相对较为简单的结构，组装结构更加简单，另外其压电主动部8110、摩擦驱动部8120等元件大小与运动行程大小基本无关，因此在光学变焦类产品中所述压电致动器8100可以实现大推力、小尺寸，小重量等优势，同时匹配更大行程或更重器件重量进行设计，设计中的集成度也更高。The piezoelectric actuator 8100 has a relatively simple structure, and the assembly structure is simpler. In addition, the size of the piezoelectric active part 8110, the friction driving part 8120 and other components are basically irrelevant to the size of the motion stroke, so it is used in optical zoom products. The piezoelectric actuator 8100 can achieve the advantages of large thrust, small size, and small weight, and at the same time, it can be designed to match a larger stroke or heavier device weight, and the integration degree in the design is also higher.
进一步地，所述压电致动器8100以摩擦接触的方式推动待推动对象进行微米级运动，其相较于电磁式方案非接触的方式驱动待推动对象需要依靠电磁力抵消重力，摩擦力的方式，具有更大推力，更大位移和更低功耗的优势，同时控制精度更高，可实现高精度连续变焦。而且在存在多个马达机构时，所述压电致动器8100不存在磁铁线圈结构，无磁干扰问题。另外，所述压电致动器8100可依靠部件之间的摩擦力自锁，因此可以降低所述可变焦摄像模组在进行光学变焦时的晃动异响。Further, the piezoelectric actuator 8100 pushes the object to be pushed to perform micron-scale motion in a frictional contact manner. Compared with the electromagnetic scheme, the non-contact way to drive the object to be pushed requires the electromagnetic force to counteract the gravity, and the frictional force It has the advantages of greater thrust, greater displacement and lower power consumption, and at the same time, the control accuracy is higher, and high-precision continuous zoom can be achieved. Moreover, when there are multiple motor mechanisms, the piezoelectric actuator 8100 does not have a magnet coil structure, so there is no problem of magnetic interference. In addition, the piezoelectric actuator 8100 can be self-locked by the friction force between the components, so the abnormal shaking noise of the zoom camera module during optical zooming can be reduced.
在选择以所述压电致动器8100为所述第一驱动元件842和所述第二驱动元件843后，需将所述压电致动器8100以合理的方式布设于所述可变焦摄像模组内，更具体地，在该实施例中，需采用合理的方式将所述压电致动器8100布设于所述驱动壳体841内，以满足所述可变焦摄像模组的光学性能调整要求、结构设计要求和尺寸设计要求。After selecting the piezoelectric actuator 8100 as the first driving element 842 and the second driving element 843, the piezoelectric actuator 8100 needs to be arranged in the zoom camera in a reasonable manner In the module, more specifically, in this embodiment, the piezoelectric actuator 8100 needs to be arranged in the drive housing 841 in a reasonable manner to meet the optical performance of the variable-focus camera module Adjustment requirements, structural design requirements and size design requirements.
更具体地，如图13所示，在该实施例中，所述驱动组件，进一步包括第一预压部件850和第二预压部件860，其中，所述第一驱动元件842通过所述第一预压部件850被夹持地设置于所述第一载体844和所述驱动壳体841之间，并被配置为驱动所述第一载体844以带动所述变焦部分822沿着该光轴所设定的方向移动；所述第二驱动元件843通过所述第二预压部件860被夹持地设置于所述第二载体845和所述驱动壳体841之间，并被配置为驱动所述第二载体845以带动所述对焦部分823沿着该光轴所设定的方向移动。More specifically, as shown in FIG. 13 , in this embodiment, the driving assembly further includes a first pre-pressing part 850 and a second pre-pressing part 860 , wherein the first driving element 842 passes through the first A pre-compression member 850 is sandwiched between the first carrier 844 and the driving housing 841, and is configured to drive the first carrier 844 to drive the zoom portion 822 along the optical axis The set direction moves; the second driving element 843 is sandwiched between the second carrier 845 and the driving housing 841 by the second pre-compression member 860, and is configured to drive The second carrier 845 drives the focusing portion 823 to move along the direction set by the optical axis.
这里，所述第一驱动元件842被夹持地设置于所述第一载体844和所述驱动壳体841之间，表示：在所述第一驱动元件842被安装于所述第一载体844和所述驱动壳体841之间后，所述第一驱动元件842的摩擦驱动部8120与被驱动的对象处于相互挤压的状态，以使得所述第一驱动元件842所提供的摩擦驱动力能作用于所述第一载体844。相一致地，所述第二驱动元件843被夹持地设置于所述第二载体845和所述驱动壳体841之间，表示：在所述第二驱动元件843被安装于所述第二载体845和所述驱动壳体841之间后，所述第二驱动元件843的摩擦驱动部8120与被驱动的对象处于相互挤压的状态，以使得所述第二驱动元件843所提供的摩擦驱动力能作用于所述第二载体845。Here, the first driving element 842 is clamped and disposed between the first carrier 844 and the driving housing 841 , which means that the first driving element 842 is mounted on the first carrier 844 After being connected to the driving housing 841, the friction driving part 8120 of the first driving element 842 and the driven object are in a state of pressing each other, so that the friction driving force provided by the first driving element 842 Can act on the first carrier 844 . Consistently, the second driving element 843 is sandwiched between the second carrier 845 and the driving housing 841, indicating that the second driving element 843 is mounted on the second Between the carrier 845 and the drive housing 841 , the friction drive part 8120 of the second drive element 843 and the driven object are in a state of pressing each other, so that the friction provided by the second drive element 843 The driving force can act on the second carrier 845 .
如图13所示，在该实施例中，所述驱动组件进一步包括第一摩擦作动部8131和第二摩擦作动部8132，其中，所述第一摩擦作动部8131被设置于所述第一驱动元件842和所述第一载体844之间并且所述第一驱动元件842的摩擦驱动部8120在所述第一预压部件850的作用下抵触于所述第一摩擦作动部8131，这样，所述第一驱动元件842所提供的摩擦驱动力能够藉由所述第一摩擦作动部8131作用于所述第一载体844，以带动所述第一载体844沿着光轴所设定的方向移动。相应地，所述第二摩擦作动部8132被设置于所述第二驱动元件843和所述第二载体845之间。并且所述第二 驱动元件843的摩擦驱动部8120在所述第二预压部件860的作用下抵触于所述第二摩擦作动部8132，这样，所述第二驱动元件843所提供的摩擦驱动力能够藉由所述第二摩擦作动部8132作用于所述第二载体845，以带动所述第二载体845沿着光轴所设定的方向移动。As shown in FIG. 13 , in this embodiment, the drive assembly further includes a first friction actuation portion 8131 and a second friction actuation portion 8132 , wherein the first friction actuation portion 8131 is provided on the Between the first driving element 842 and the first carrier 844 and the friction driving part 8120 of the first driving element 842 abuts against the first friction actuating part 8131 under the action of the first pre-compression member 850 In this way, the friction driving force provided by the first driving element 842 can act on the first carrier 844 through the first friction actuating portion 8131 to drive the first carrier 844 along the optical axis. Move in the set direction. Correspondingly, the second friction actuating portion 8132 is disposed between the second driving element 843 and the second carrier 845 . And the friction driving part 8120 of the second driving element 843 abuts against the second friction actuating part 8132 under the action of the second pre-compression member 860, so that the friction provided by the second driving element 843 The driving force can act on the second carrier 845 through the second friction actuating portion 8132 to drive the second carrier 845 to move along the direction set by the optical axis.
更具体地，如图13所示，在该实施例中，所述第一摩擦作动部8131具有第一表面和与所述第一表面相对的第二表面，其中，在所述第一预压部件850的作用下，所述第一摩擦作动部8131的第一表面抵触于所述第一载体844的侧表面，其第二表面抵触于所述多个摩擦驱动元件8121中至少一个所述摩擦驱动元件8121的第二端的端面，通过这样的方式，所述第一驱动元件842的摩擦驱动部8120抵触于所述第一摩擦作动部8131且所述第一摩擦作动部8131抵触于所述第一载体844，这样，所述第一驱动元件842所提供的摩擦驱动力能够藉由所述第一摩擦作动部8131作用于所述第一载体844，以带动所述第一载体844沿着光轴所设定的方向移动。相应地，所述第二摩擦作动部8132具有第三表面和与所述第三表面相对的第四表面，其中，在所述第二预压部件860的作用下，所述第二摩擦作动部8132的第三表面抵触于所述第二载体845的侧表面，所述第四表面抵触于所述多个摩擦驱动元件8121中至少一个所述摩擦驱动元件8121的第二端的端面，通过这样的方式，所述第二驱动元件843的摩擦驱动部8120抵触于所述第二摩擦作动部8132且所述第二摩擦作动部8132抵触于所述第二载体845，这样，所述第二驱动元件843所提供的摩擦驱动力能够藉由所述第二摩擦作动部8132作用于所述第二载体845，以带动所述第二载体845沿着光轴所设定的方向移动。More specifically, as shown in FIG. 13 , in this embodiment, the first friction actuating portion 8131 has a first surface and a second surface opposite to the first surface, wherein in the first pre- Under the action of the pressing member 850 , the first surface of the first friction actuating portion 8131 abuts against the side surface of the first carrier 844 , and the second surface thereof abuts against at least one of the plurality of friction driving elements 8121 . The end surface of the second end of the friction driving element 8121, in this way, the friction driving part 8120 of the first driving element 842 abuts against the first friction actuating part 8131 and the first friction actuating part 8131 interferes In the first carrier 844, the friction driving force provided by the first driving element 842 can act on the first carrier 844 through the first friction actuating portion 8131 to drive the first carrier 844. The carrier 844 moves along the direction set by the optical axis. Correspondingly, the second frictional actuating portion 8132 has a third surface and a fourth surface opposite to the third surface, wherein, under the action of the second pre-compression member 860, the second frictional actuation The third surface of the movable portion 8132 is in contact with the side surface of the second carrier 845 , and the fourth surface is in contact with the end surface of the second end of at least one of the friction driving elements 8121 among the plurality of friction driving elements 8121 . In this way, the friction driving portion 8120 of the second driving element 843 is in contact with the second friction actuating portion 8132 and the second friction actuating portion 8132 is in contact with the second carrier 845 . In this way, the The friction driving force provided by the second driving element 843 can act on the second carrier 845 through the second friction actuating portion 8132 to drive the second carrier 845 to move in the direction set by the optical axis .
值得一提的是，虽然在如图13所示意的示例中，所述第一摩擦作动部8131和所述第二摩擦作动部8132作为一个单独的部件被分别设置于所述第一驱动元件842和所述第一载体844之间，以及，所述第二驱动元件843和所述第二载体845之间，应可以理解，在本申请其他示例中，所述第一摩擦作动部8131也可一体成型于所述第一载体844的侧表面，即，所述第一摩擦作动部8131与所述第一载体844具有一体式结构，例如，所述第一摩擦作动部8131为涂覆于所述第一载体844的侧表面的一个摩擦涂层，对此，并不为本申请所局限。当然，在本申请其他示例中，所述第二摩擦作动部8132也可一体成型于所述第二载体845的侧表面，即，所述第二摩擦作动 部8132与所述第二载体845具有一体式结构，例如，所述第二摩擦作动部8132为涂覆于所述第二载体845的侧表面的一个摩擦涂层，对此并不为本申请所局限。It is worth mentioning that, although in the example shown in FIG. 13 , the first friction actuating portion 8131 and the second friction actuating portion 8132 are respectively provided as a separate component in the first drive Between the element 842 and the first carrier 844, and between the second driving element 843 and the second carrier 845, it should be understood that in other examples of this application, the first friction actuating portion The 8131 can also be integrally formed on the side surface of the first carrier 844, that is, the first friction actuating portion 8131 and the first carrier 844 have an integral structure, for example, the first friction actuating portion 8131 It is a friction coating applied to the side surface of the first carrier 844, which is not limited by this application. Of course, in other examples of the present application, the second friction actuating portion 8132 may also be integrally formed on the side surface of the second carrier 845 , that is, the second friction actuating portion 8132 and the second carrier The 845 has a one-piece structure, for example, the second friction actuating portion 8132 is a friction coating coated on the side surface of the second carrier 845, which is not limited by this application.
值得一提的是，在本申请实施例中，优选地，所述第一摩擦作动部8131的长度大于所述第一驱动元件841的长度且所述第二摩擦作动部8131的长度大于所述第二驱动元件842的长度，这样，在通过所述第一驱动元件841和所述第二驱动元件842分别以摩擦驱动的方式驱动所述变焦部分822和所述对焦部分823时，所述变焦部分822和所述对焦部分823具有足够的行程，以保证所述变焦部分822和所述对焦部分的移动线性度。当然，在本申请其他示例中，所述第一摩擦作动部8131的长度也可以小于或者等于所述第一驱动元件841的长度且所述第二摩擦作动部8131的长度也可以小于或者等于所述第二驱动元件842的长度，对此，并不为本申请所局限。It is worth mentioning that, in the embodiment of the present application, preferably, the length of the first friction actuating portion 8131 is greater than the length of the first driving element 841 and the length of the second friction actuating portion 8131 is greater than The length of the second driving element 842, so that when the zooming part 822 and the focusing part 823 are driven by the first driving element 841 and the second driving element 842 in a friction driving manner, respectively, the The zooming part 822 and the focusing part 823 have sufficient strokes to ensure the linearity of movement of the zooming part 822 and the focusing part. Of course, in other examples of the present application, the length of the first friction actuating portion 8131 may also be less than or equal to the length of the first driving element 841 and the length of the second friction actuating portion 8131 may also be less than or equal to It is equal to the length of the second driving element 842, which is not limited by this application.
还值得一提的是，在本申请实施例中，所述变焦部分822和所述对焦部分823的行程要求往往不同，因此，所述第一驱动元件841的长度尺寸与所述第二驱动元件842的长度尺寸不同，通常来说，所述变焦部分822的行程长度小于所述对焦部分823的行程长度。相应地，在本申请实施例中，所述第一驱动元件841的长度尺度小于所述第二驱动元件842的长度尺度，即，在本申请实施例中，所述压电止动器8100的长度与被驱动对象的行程长度成正比。当然，在本申请一些特殊的示例中，所述变焦部分822的行程长度也可以大于所述对焦部分823的行程长度，即，在一些特殊示例中，所述第一驱动元件841的长度尺度也可以大于所述第二驱动元件842的长度尺度，对此，并不为本申请所局限。It is also worth mentioning that, in the embodiment of the present application, the stroke requirements of the zooming part 822 and the focusing part 823 are often different. Therefore, the length dimension of the first driving element 841 is different from that of the second driving element. 842 have different lengths. Generally speaking, the stroke length of the zooming part 822 is smaller than the stroke length of the focusing part 823 . Correspondingly, in the embodiment of the present application, the length dimension of the first driving element 841 is smaller than the length dimension of the second driving element 842 , that is, in the embodiment of the present application, the length of the piezoelectric stopper 8100 The length is proportional to the stroke length of the driven object. Of course, in some special examples of the present application, the stroke length of the zooming part 822 may also be greater than the stroke length of the focusing part 823 , that is, in some special examples, the length dimension of the first driving element 841 is also It can be larger than the length dimension of the second driving element 842, which is not limited by the present application.
特别地，在如图13所示意的示例中，所述第一预压部件850包括第一弹性元件851，所述第一弹性元件851被设置于所述第一驱动元件842的压电主动部8110和所述驱动壳体841之间，以通过所述第一弹性元件851的弹力提供所述第一驱动元件842的摩擦驱动部8120与所述第一摩擦作动部8131之间的预压力且通过所述第一弹性元件851使得所述第一摩擦作动部8131抵触于所述第一载体844的侧表面。也就是，通过所述第一弹性元件851的弹力使得所述第一驱动元件842被夹持地设置于所述驱动壳体841和所述第一载体844之间，使得所述第一驱动元件842的摩擦驱动部8120抵触于所述第一摩擦作动部8131，以及，使得所述第一摩擦作动部 8131抵触于所述第一载体844的侧表面。In particular, in the example shown in FIG. 13 , the first pre-compression member 850 includes a first elastic element 851 , and the first elastic element 851 is arranged on the piezoelectric active part of the first driving element 842 . 8110 and the driving housing 841 to provide a pre-pressure between the friction driving part 8120 of the first driving element 842 and the first friction actuating part 8131 through the elastic force of the first elastic element 851 And through the first elastic element 851 , the first friction actuating portion 8131 abuts against the side surface of the first carrier 844 . That is, through the elastic force of the first elastic element 851, the first driving element 842 is clamped and disposed between the driving housing 841 and the first carrier 844, so that the first driving element The friction driving part 8120 of 842 abuts against the first friction actuating part 8131 , and makes the first friction actuating part 8131 abut against the side surface of the first carrier 844 .
在本申请一个具体示例中，所述第一弹性元件851被实施为具有弹性的黏着剂，也就是，所述第一弹性元件851被实施为固化后具有弹性的胶水。相应地，在安装过程中，可在所述驱动壳体841的内侧壁的表面和所述第一驱动元件842的压电主动部8110之间施加一层厚度为10um至50um的黏着剂，以在所述黏着剂固化成型后形成设置于所述第一驱动元件842的压电主动部8110和所述驱动壳体841之间的所述第一弹性元件851。也就是，所述第一弹性元件851在提供预压力的同时，还能够使得所述第一驱动元件842被固定于所述驱动壳体841的内侧壁的表面。优选地，所述第一弹性元件851具有相对较高的平整度，即，在施加所述黏着剂时，尽可能地保证所施加的黏着剂具有相对较高的平整度且均匀度，从而使得所述第一驱动元件842能够平整地被固定于所述驱动壳体841的内侧壁的表面，进而提升所述第一驱动元件842驱动的稳定性。In a specific example of the present application, the first elastic element 851 is implemented as an elastic adhesive, that is, the first elastic element 851 is implemented as a glue with elasticity after curing. Correspondingly, during the installation process, a layer of adhesive with a thickness of 10um to 50um can be applied between the surface of the inner side wall of the drive housing 841 and the piezoelectric active part 8110 of the first drive element 842 to After the adhesive is cured and formed, the first elastic element 851 disposed between the piezoelectric active part 8110 of the first driving element 842 and the driving housing 841 is formed. That is, while the first elastic element 851 provides the pre-pressure, the first driving element 842 can also be fixed on the surface of the inner side wall of the driving housing 841 . Preferably, the first elastic element 851 has a relatively high flatness, that is, when applying the adhesive, it is ensured that the applied adhesive has a relatively high flatness and uniformity as much as possible, so that the The first driving element 842 can be flatly fixed on the surface of the inner side wall of the driving housing 841 , thereby improving the driving stability of the first driving element 842 .
特别地，在如图13所示意的示例中，所述第二预压部件860包括第二弹性元件861，所述第二弹性元件861被设置于所述第二驱动元件843的压电主动部8110和所述驱动壳体841之间，以通过所述第二弹性元件861的弹力提供所述第二驱动元件843的摩擦驱动部8120与所述第二摩擦作动部8132之间的预压力且通过所述第二弹性元件861使得所述第二摩擦作动部8132抵触于所述第二载体845的侧表面。也就是，通过所述第二弹性元件861的弹力使得所述第二驱动元件843被夹持地设置于所述驱动壳体841和所述第二载体845之间，使得所述第二驱动元件843的摩擦驱动部8120抵触于所述第二摩擦作动部8132，以及，使得所述第二摩擦作动部8132抵触于所述第二载体845的侧表面。In particular, in the example shown in FIG. 13 , the second pre-compression member 860 includes a second elastic element 861 , and the second elastic element 861 is arranged on the piezoelectric active part of the second driving element 843 . 8110 and the driving housing 841 to provide a pre-pressure between the friction driving part 8120 of the second driving element 843 and the second friction actuating part 8132 through the elastic force of the second elastic element 861 And through the second elastic element 861 , the second friction actuating portion 8132 abuts against the side surface of the second carrier 845 . That is, through the elastic force of the second elastic element 861, the second driving element 843 is clamped and disposed between the driving housing 841 and the second carrier 845, so that the second driving element The friction driving part 8120 of 843 abuts against the second friction actuating part 8132 , and makes the second friction actuating part 8132 abut against the side surface of the second carrier 845 .
在本申请一个具体示例中，所述第二弹性元件861被实施为具有弹性的黏着剂，也就是，所述第二弹性元件861被实施为固化后具有弹性的胶水。相应地，在安装过程中，可在所述驱动壳体841的内侧壁的表面和所述第二驱动元件843的压电主动部8110之间施加一层厚度为10um至50um的黏着剂，以在所述黏着剂固化成型后形成设置于所述第二驱动元件843的压电主动部8110和所述驱动壳体841之间的所述第二弹性元件861。也就是，所述第二弹性元件861在提供预压力的同时，还能够使得所述第二驱动元件843被固定于所述驱动壳体841的内侧壁的表面。优选地，所述第二弹性元 件861具有相对较高的平整度，即，在施加所述黏着剂时，尽可能地保证所施加的黏着剂具有相对较高的平整度且均匀度，从而使得所述第二驱动元件843能够平整地被固定于所述驱动壳体841的内侧壁的表面，进而提升所述第二驱动元件843驱动的稳定性。In a specific example of the present application, the second elastic element 861 is implemented as an elastic adhesive, that is, the second elastic element 861 is implemented as a glue with elasticity after curing. Correspondingly, during the installation process, a layer of adhesive with a thickness of 10um to 50um can be applied between the surface of the inner side wall of the drive housing 841 and the piezoelectric active part 8110 of the second drive element 843 to After the adhesive is cured and formed, the second elastic element 861 disposed between the piezoelectric active part 8110 of the second driving element 843 and the driving housing 841 is formed. That is, while the second elastic element 861 provides pre-pressure, the second driving element 843 can also be fixed on the surface of the inner side wall of the driving housing 841 . Preferably, the second elastic element 861 has relatively high flatness, that is, when the adhesive is applied, it is ensured that the applied adhesive has relatively high flatness and uniformity as much as possible, so that the The second driving element 843 can be flatly fixed to the surface of the inner side wall of the driving housing 841 , thereby improving the driving stability of the second driving element 843 .
值得一提的是，在本申请其他实施例中，所述第一弹性元件851和所述第二弹性元件861也可以被实施为不具有黏性的弹性元件，例如，材料自身特征本身存在弹性的橡胶，或者，由于形变而产生弹性的弹簧、板簧等，对此，同样并不为本申请所局限。It is worth mentioning that in other embodiments of the present application, the first elastic element 851 and the second elastic element 861 can also be implemented as elastic elements without viscosity, for example, the material itself has elasticity rubber, or springs, leaf springs, etc. that generate elasticity due to deformation, which are also not limited by this application.
进一步地，如图13所示，在该实施例中，选择将所述第一驱动元件842和所述第二驱动元件843同时设置于所述变焦透镜组820的第一侧，也就是，选择将所述第一驱动元件842和所述第二驱动元件843设置于所述变焦透镜组820的同一侧，这样，所述第一驱动元件842和所述第二驱动元件843的在所述驱动壳体841内的布置紧凑度更高，所占据的所述驱动壳体841的纵向空间更小。这里，所述驱动壳体841的纵向空间指的是所述驱动壳体841在其长度方向上所占据的空间，相应地，所述驱动壳体841的横向空间指的是所述驱动壳体841在其宽度方向上所占据的空间，所述驱动壳体841的高度空间指的是所述驱动壳体841在其高度方向上所占据的空间。Further, as shown in FIG. 13 , in this embodiment, the first driving element 842 and the second driving element 843 are selected to be disposed on the first side of the zoom lens group 820 at the same time, that is, the selection of The first driving element 842 and the second driving element 843 are arranged on the same side of the zoom lens group 820, so that the driving elements of the first driving element 842 and the second driving element 843 are The arrangement in the housing 841 is more compact, and the longitudinal space occupied by the driving housing 841 is smaller. Here, the longitudinal space of the driving housing 841 refers to the space occupied by the driving housing 841 in the length direction thereof, and correspondingly, the lateral space of the driving housing 841 refers to the driving housing The space occupied by 841 in its width direction, and the height space of the drive housing 841 refers to the space occupied by the drive housing 841 in its height direction.
并且，当所述第一驱动元件842和所述第二驱动元件843被设置于所述变焦透镜组820的同一侧时，在通过所述第一驱动元件842驱动所述变焦部分822和通过所述第二驱动元件843驱动所述对焦部分823时，所述变焦部分822和所述对焦部分823之间的相对位置关系误差(尤其是相对倾斜关系)能够得以降低，以提高所述对焦部分823和所述变焦部分822之间的一致性，减小所述可变焦摄像模组因所述变焦部分822和所述对焦部分823的倾斜而导致的成像质量下降的可能性。Also, when the first driving element 842 and the second driving element 843 are disposed on the same side of the zoom lens group 820, the zooming portion 822 is driven by the first driving element 842 and the zooming portion 822 is driven by the zoom lens group 820. When the second driving element 843 drives the focusing portion 823, the relative positional relationship error (especially the relative inclination relationship) between the zooming portion 822 and the focusing portion 823 can be reduced to improve the focusing portion 823 The consistency between the zooming part 822 and the zooming part 822 reduces the possibility that the image quality of the variable zoom camera module is degraded due to the inclination of the zooming part 822 and the focusing part 823 .
优选地，当所述第一驱动元件842和所述第二驱动元件843位于所述变焦透镜组820的同一侧时，所述第一驱动元件842和所述第二驱动元件843在所述变焦透镜组820的第一侧的高度方向上对齐地设置，也就是，所述第一驱动元件842和所述第二驱动元件843具有相同的安装高度，这样，所述对焦部分823和所述变焦部分822在所述驱动壳体841所设定的高度方向上的一致性相对更高，也就是，在通过所述第一驱动元件842驱动所述 变焦部分822和通过所述第二驱动元件843驱动所述对焦部分823后，所述变焦部分822和所述对焦部分823在所述驱动壳体841所设定的高度方向上的一致性相对更高，以确保所述可变焦摄像模组的成像质量。Preferably, when the first driving element 842 and the second driving element 843 are located on the same side of the zoom lens group 820, the first driving element 842 and the second driving element 843 are in the zoom lens The first side of the lens group 820 is aligned in the height direction, that is, the first driving element 842 and the second driving element 843 have the same mounting height, so that the focusing portion 823 and the zooming portion The consistency of the portion 822 in the height direction set by the drive housing 841 is relatively higher, that is, when the zoom portion 822 is driven by the first drive element 842 and the zoom portion 822 is driven by the second drive element 843 After the focusing portion 823 is driven, the consistency of the zooming portion 822 and the focusing portion 823 in the height direction set by the driving housing 841 is relatively higher, so as to ensure the image quality.
如前所述，在本申请实施例中，优选地，所述变焦透镜组820的所述对焦部分823和所述变焦部分822相邻地设置。在这样的位置关系下，所述第一驱动元件842和所述第二驱动元件843也可以相邻地设置，从而缩减所述第一驱动元件842和所述第二驱动元件843的两者整体所占据的所述驱动壳体841的纵向空间大小，利于所述可变焦摄像模组的小型化的发展趋势。As mentioned above, in the embodiment of the present application, preferably, the focusing portion 823 and the zooming portion 822 of the zoom lens group 820 are disposed adjacent to each other. In such a positional relationship, the first driving element 842 and the second driving element 843 can also be disposed adjacent to each other, thereby reducing the overall size of the first driving element 842 and the second driving element 843 The size of the longitudinal space occupied by the driving housing 841 is beneficial to the development trend of miniaturization of the variable-focus camera module.
为了使得所述第一驱动元件842和所述第二驱动元件843能够更为平稳地驱动所述第一载体844和所述第二载体845，并且，保持所述第一载体844和所述第二载体845之间的相对位置关系具有相对较高的精度，如图13和814所示，在本申请实施例中，所述驱动组件840，进一步包括导引结构846，所述导引结构846被配置为引导所述对焦部分823和所述变焦部分822沿着该光轴移动。In order to enable the first driving element 842 and the second driving element 843 to drive the first carrier 844 and the second carrier 845 more smoothly, and keep the first carrier 844 and the second carrier 844 The relative positional relationship between the two carriers 845 has relatively high precision. As shown in FIGS. 13 and 814 , in the embodiment of the present application, the driving assembly 840 further includes a guide structure 846 , and the guide structure 846 is configured to guide the focusing portion 823 and the zooming portion 822 to move along the optical axis.
考虑到所述可变焦摄像模组的结构设计，优选地，在本申请实施例中，将所述导引结构846设置于所述变焦透镜组820的与所述第一侧相对的第二侧。也就是，在本申请实施例中，优选地，所述第一驱动元件842和所述第二驱动元件843(作为第一部分)和所述导引结构846(作为第二部分)分别被设置于所述变焦透镜组820的相对的二侧，通过这样的方式，使得所述可变焦摄像模组的内部空间被充分地应用，以利于所述可变焦摄像模组的轻型化和薄型化。Considering the structural design of the variable-focus camera module, preferably, in the embodiment of the present application, the guide structure 846 is disposed on the second side of the zoom lens group 820 opposite to the first side . That is, in the embodiment of the present application, preferably, the first driving element 842 and the second driving element 843 (as the first part) and the guide structure 846 (as the second part) are respectively disposed in On the two opposite sides of the zoom lens group 820 , in this way, the internal space of the zoom camera module is fully utilized, so as to facilitate the lightening and thinning of the zoom camera module.
如图13和图18所示，在该实施例中，所述第一驱动元件842和所述第二驱动元件843共同一个导引结构846，也就是，所述第一载体844和所述第二载体845共同一个引导结构，通过这样的方式，有利于稳定地保持所述第一载体844和所述第二载体845之间的相对位置关系，以利于稳定地保持所述变焦透镜组820的所述对焦部分823和所述变焦部分822之间的相对位置关系，以提高所述变焦透镜组820的解像能力。As shown in FIG. 13 and FIG. 18 , in this embodiment, the first driving element 842 and the second driving element 843 share a guiding structure 846 , that is, the first carrier 844 and the first carrier 844 The two carriers 845 share a guiding structure. In this way, the relative positional relationship between the first carrier 844 and the second carrier 845 can be stably maintained, and the zoom lens group 820 can be stably maintained. The relative positional relationship between the focusing portion 823 and the zooming portion 822 is to improve the resolution capability of the zoom lens group 820 .
更具体地，如图13和图18所示，在该示例中，所述导引结构846，包括：相间隔地形成于所述驱动壳体841的第一支撑部8461和第二支撑部8462，以及，架设于所述第一支撑部8461和第二支撑部8462之间且贯穿 所述第一载体844和所述第二载体845的至少一导杆8463，所述导杆8463与该光轴平行，以使得所述第一载体844和所述第二载体845能够被导引沿着平行于该光轴的所述导杆8463移动。More specifically, as shown in FIGS. 13 and 18 , in this example, the guide structure 846 includes: a first support portion 8461 and a second support portion 8462 formed on the drive housing 841 at intervals. , and at least one guide rod 8463 built between the first support portion 8461 and the second support portion 8462 and passing through the first carrier 844 and the second carrier 845, the guide rod 8463 and the light The axes are parallel so that the first carrier 844 and the second carrier 845 can be guided to move along the guide rod 8463 parallel to the optical axis.
相应地，在该示例中，所述第一支撑部8461和所述第二支撑部8462的作用在于架设所述导杆8463。例如，在该示例的一个具体的实施方案中，可在所述驱动壳体841的底表面上安装所述第一支撑部8461和所述第二支撑部8462(例如，所述第一支撑部8461和所述第二支撑部8462可被实施为支撑架)，当然，所述第一支撑部8461和所述第二支撑部8462也可以一体成型于所述驱动壳体841的底表面上，对此，并不为本申请所局限。当然，在该示例的其他具体的实施方案中，所述第一支撑部8461和所述第二支撑部8462也可以被实施为所述驱动壳体841的侧壁，也就是，所述驱动壳体841的相对的两个侧壁形成所述第一支撑部8461和所述第二支撑部8462。Correspondingly, in this example, the functions of the first support portion 8461 and the second support portion 8462 are to span the guide rod 8463 . For example, in a specific implementation of this example, the first support portion 8461 and the second support portion 8462 (eg, the first support portion 8462) may be mounted on the bottom surface of the drive housing 841 8461 and the second support part 8462 can be implemented as a support frame), of course, the first support part 8461 and the second support part 8462 can also be integrally formed on the bottom surface of the drive housing 841, This is not limited by this application. Of course, in other specific implementations of this example, the first support portion 8461 and the second support portion 8462 can also be implemented as side walls of the drive housing 841 , that is, the drive housing The opposite two side walls of the body 841 form the first support portion 8461 and the second support portion 8462 .
相应地，为了允许所述导杆8463穿过，可在所述第一支撑部8461和所述第二支撑部8462上设置导杆槽8464，在所述第一载体844和所述第二载体845内形成贯穿于其两侧表面的导杆通道8465，这样，所述导杆8463能够以安装于所述导杆槽8464的方式被架设于所述第一支撑部8461和所述第二支撑部8462，并同时穿过所述第一载体844和所述第二载体845的导杆通道8465。进一步地，在该具体示例中，可选择在所述第一载体844和所述第二载体845的导杆通道8465内设置润滑介质，以减小摩擦。Correspondingly, in order to allow the guide rod 8463 to pass through, guide rod grooves 8464 can be provided on the first support part 8461 and the second support part 8462, and a guide rod groove 8464 can be provided on the first carrier 844 and the second carrier A guide rod channel 8465 is formed in the 845 through its two side surfaces, in this way, the guide rod 8463 can be mounted on the first support part 8461 and the second support in the way of being installed in the guide rod groove 8464 part 8462 and pass through the guide rod passages 8465 of the first carrier 844 and the second carrier 845 at the same time. Further, in this specific example, a lubricating medium may be optionally provided in the guide rod channels 8465 of the first carrier 844 and the second carrier 845 to reduce friction.
值得一提的是，优选地，在本申请实施例中，所述导杆8463与所述第一驱动元件842的传动轴8121和/或所述第二驱动元件843的传动轴8121齐平，这样可以减小所述对焦部和所述变焦部之间产生倾斜的风险，以确保所述可变焦摄像模组的成像质量。It is worth mentioning that, preferably, in the embodiment of the present application, the guide rod 8463 is flush with the transmission shaft 8121 of the first driving element 842 and/or the transmission shaft 8121 of the second driving element 843 , In this way, the risk of inclination between the focusing part and the zooming part can be reduced, so as to ensure the imaging quality of the variable-focus camera module.
图19图示了根据本申请实施例的所述可变焦摄像模组的导引结构的一个变形实施的示意图。如图19所示，在该示例中，所述驱动组件840，进一步包括设置于所述第一载体844和所述驱动壳体841之间的第一导引机构847和设置于所述第二载体845和所述驱动壳体841之间的第二导引机构848，其中，所述第一导引机构847被配置为引导所述变焦部分822沿着该光轴移动，所述第二导引机构848被配置为引导所述对焦部分823沿着该光轴移动。FIG. 19 is a schematic diagram illustrating a variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application. As shown in FIG. 19 , in this example, the drive assembly 840 further includes a first guide mechanism 847 disposed between the first carrier 844 and the drive housing 841 , and a first guide mechanism 847 disposed between the second carrier 844 and the drive housing 841 . A second guide mechanism 848 between the carrier 845 and the drive housing 841, wherein the first guide mechanism 847 is configured to guide the zoom portion 822 to move along the optical axis, the second guide The guide mechanism 848 is configured to guide the focus portion 823 to move along the optical axis.
具体地，如图19所示，所述第一导引机构847，包括设置于所述第一 载体844和所述驱动壳体841之间的至少一滚珠8401，以及，设置于所述第一载体844和所述驱动壳体841之间的用于容纳所述至少一滚珠8401的收容槽8402。也就是，所述第一导引机构847为滚珠8401导引结构846。所述第二导引机构848，包括设置于所述第二载体845和所述驱动壳体841之间的至少一滚珠8401，以及，设置于所述第二载体845和所述驱动壳体841之间的用于容纳所述至少一滚珠8401的收容槽8402。也就是，在该示例中，所述第二导引机构848同样为滚珠8401导引结构846。Specifically, as shown in FIG. 19 , the first guide mechanism 847 includes at least one ball 8401 disposed between the first carrier 844 and the drive housing 841 , and is disposed in the first A receiving groove 8402 between the carrier 844 and the driving housing 841 for receiving the at least one ball 8401 . That is, the first guide mechanism 847 is the ball 8401 guide structure 846 . The second guide mechanism 848 includes at least one ball 8401 disposed between the second carrier 845 and the drive housing 841 , and at least one ball 8401 disposed between the second carrier 845 and the drive housing 841 A receiving groove 8402 for receiving the at least one ball 8401 therebetween. That is, in this example, the second guide mechanism 848 is also the ball 8401 guide structure 846 .
在一个具体实施中，如图19所示，可在所述第一载体844的侧表面以及在所述驱动壳体841的内侧壁的表面形成所述收容槽8402，使所述至少一滚珠8401在所述收容槽8402内滑动或者滚动，所述收容槽8402的长度方向上与该光轴方向相一致。在一个具体实施中，如图19所示，可在所述第二载体845的侧表面以及所述驱动壳体841的内侧壁的表面形成所述收容槽8402，使所述至少一滚珠8401在所述收容槽8402内滑动或者滚动。In a specific implementation, as shown in FIG. 19 , the receiving groove 8402 may be formed on the side surface of the first carrier 844 and the surface of the inner side wall of the driving housing 841 , so that the at least one ball 8401 Sliding or rolling in the accommodating groove 8402, the length direction of the accommodating groove 8402 is consistent with the optical axis direction. In a specific implementation, as shown in FIG. 19 , the receiving groove 8402 may be formed on the side surface of the second carrier 845 and the surface of the inner side wall of the driving housing 841 , so that the at least one ball 8401 is The receiving groove 8402 slides or rolls inside.
优选地，所述第一导引机构847与所述第二导引机构848的配置相同，并且，所述第一导引机构847的收容槽8402与所述第二导引机构848的收容槽8402处于同一直线上且相互连接，从而使得所述第一载体844和所述第二载体845之间的倾斜度可以被降低。Preferably, the configuration of the first guide mechanism 847 and the second guide mechanism 848 are the same, and the receiving groove 8402 of the first guide mechanism 847 and the receiving groove of the second guide mechanism 848 8402 are on the same line and connected to each other, so that the inclination between the first carrier 844 and the second carrier 845 can be reduced.
图20图示了根据本申请实施例的所述可变焦摄像模组的导引结构的另一个变形实施的示意图。如图20所示，在该示例中，所述第一导引机构847，包括：设置于所述第一载体844和所述驱动壳体841之间的至少一滑块8403，以及，设置于所述驱动壳体841与所述第一载体844之间的适于所述至少一滑块8403滑动的滑槽8404。也就是，在该示例中，所述第一导引机构847为滑块和滑轨结构。所述第二导引机构848，包括：设置于所述第二载体845和所述驱动壳体841之间的至少一滑块8403，以及，设置于所述驱动壳体841与所述第二载体845之间的适于所述至少一滑块8403滑动的滑槽8404。也就是，在该示例中，所述第二导引机构848同样为滑块和滑槽结构。FIG. 20 is a schematic diagram illustrating another variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application. As shown in FIG. 20 , in this example, the first guide mechanism 847 includes: at least one sliding block 8403 disposed between the first carrier 844 and the drive housing 841 , and disposed on the A sliding groove 8404 between the driving housing 841 and the first carrier 844 is suitable for the sliding of the at least one slider 8403 . That is, in this example, the first guide mechanism 847 is a slider and a slide rail structure. The second guide mechanism 848 includes: at least one sliding block 8403 disposed between the second carrier 845 and the driving housing 841 , and at least one sliding block 8403 disposed between the driving housing 841 and the second A chute 8404 between the carriers 845 is suitable for the at least one slider 8403 to slide. That is, in this example, the second guide mechanism 848 is also a slider and a chute structure.
在该示例的一个具体实施方案中，所述滑块8403突出地形成于所述第一载体844的侧表面，所述滑槽8404凹陷地形成所述驱动壳体841的内侧壁的表面的对应位置。在该具体方案中，所述滑块8403突出地形成于所述第二载体845的侧表面，所述滑槽8404凹陷地形成于所述驱动壳体841 的内侧壁的表面的对应位置。In a specific embodiment of this example, the sliding block 8403 is formed protrudingly on the side surface of the first carrier 844 , and the sliding groove 8404 is recessed to form a corresponding surface of the inner side wall of the driving housing 841 . Location. In this specific solution, the sliding block 8403 is formed protrudingly on the side surface of the second carrier 845 , and the sliding groove 8404 is recessedly formed at a corresponding position on the surface of the inner side wall of the driving housing 841 .
优选地，所述第一载体844和所述驱动壳体841之间的滑块8403和滑槽8404设置与所述第二载体845和所述驱动壳体841之间滑块8403和滑槽8404设置相同，特别是滑块8403的尺寸以及滑槽8404的尺寸。进一步地，设置在所述驱动壳体841上的对应于所述第一载体844和所述第二载体845的两处滑槽8404处于同一直线上并可以相互连接，从而使得所述第一载体844和所述第二载体845的倾斜度可被进一步降低。Preferably, the slider 8403 and the chute 8404 between the first carrier 844 and the drive housing 841 are provided with the slider 8403 and the chute 8404 between the second carrier 845 and the drive housing 841 The settings are the same, in particular the dimensions of the slider 8403 and the dimensions of the chute 8404. Further, two sliding grooves 8404 corresponding to the first carrier 844 and the second carrier 845 provided on the drive housing 841 are on the same straight line and can be connected to each other, so that the first carrier The inclination of 844 and the second carrier 845 can be further reduced.
图21图示了根据本申请实施例的所述可变焦摄像模组的一个变形实施的示意图，其中，在该变形实施例中，所述第一驱动元件842和所述第二驱动元件843的设置位置发生变化。具体地，如图21所示，在该变形实施例中，所述第一载体844具有凹陷地形成于其侧表面且横向延伸的第一收容腔8441，所述第二载体845具有凹陷地形成于其侧表面且横向延伸的第二收容腔8451，其中，所述第一驱动元件842被设置于所述第一收容腔8441内，所述第二驱动元件843被设置于所述第二收容腔8451内。FIG. 21 is a schematic diagram illustrating a variant implementation of the variable-focus camera module according to an embodiment of the present application, wherein, in this variant embodiment, the first driving element 842 and the second driving element 843 are The setting location has changed. Specifically, as shown in FIG. 21 , in this modified embodiment, the first carrier 844 has a first receiving cavity 8441 that is concavely formed on its side surface and extends laterally, and the second carrier 845 has a concavely formed first accommodating cavity 8441 . A second accommodating cavity 8451 extending laterally on its side surface, wherein the first driving element 842 is arranged in the first accommodating cavity 8441, and the second driving element 843 is arranged in the second accommodating cavity inside cavity 8451.
相应地，当所述第一驱动元件842在所述第一收容腔8441内驱动所述第一载体844时，所述第一收容腔8441自身形成用于引导所述第一载体844移动的引导槽。也就是，在该变形实施例中，所述第一收容腔8441不仅为所述第一驱动元件842的安装提供安装空间，同时，其自身形成用于引导所述第一载体844移动(或者说，规范所述第一驱动元件842的运动)的导引结构。同样地，当所述第二驱动元件843在所述第二收容腔8451内驱动所述第二载体845时，所述第二收容腔8451自身形成用于引导所述第二载体845移动的引导槽。也就是，在该变形实施例中，所述第二收容腔8451不仅为所述第一驱动元件842的安装提供安装空间，同时，其自身形成用于引导所述第二载体845移动(或者说，规范所述第二驱动元件843的运动)的导引结构。Correspondingly, when the first driving element 842 drives the first carrier 844 in the first accommodating cavity 8441 , the first accommodating cavity 8441 itself forms a guide for guiding the movement of the first carrier 844 groove. That is, in this modified embodiment, the first accommodating cavity 8441 not only provides an installation space for the installation of the first driving element 842, but also is formed to guide the first carrier 844 to move (or , regulate the guiding structure of the movement of the first driving element 842). Likewise, when the second driving element 843 drives the second carrier 845 in the second accommodating cavity 8451 , the second accommodating cavity 8451 itself forms a guide for guiding the movement of the second carrier 845 groove. That is, in this modified embodiment, the second accommodating cavity 8451 not only provides an installation space for the installation of the first driving element 842, but also is formed to guide the movement of the second carrier 845 (or , regulate the guiding structure of the movement of the second driving element 843).
优选地，在该变形实施例中，所述第一收容腔8441的深度尺寸与所述第一驱动元件842的高度尺寸相等，和/或，所述第二收容腔8451的深度尺寸与所述第二驱动元件843的高度尺寸相等，这样，所述第一驱动元件842能被完整地收容于所述第一收容腔8441内，以及，所述第二驱动元件843能被完整地收容于所述第二收容腔8451内。当然，在本申请实施例中，所述第一收容腔8441的深度尺寸可大于所述第一驱动元件842的高度尺寸或 者小于所述第一驱动元件842的高度尺寸，以及，所述第二收容腔8451的深度尺寸可大于所述第二驱动元件843的高度尺寸或者小于所述第二驱动元件843的高度尺寸，对此，并不为本申请所局限。Preferably, in this modified embodiment, the depth dimension of the first accommodating cavity 8441 is equal to the height dimension of the first driving element 842, and/or the depth dimension of the second accommodating cavity 8451 is the same as the height dimension of the first driving element 842. The heights of the second driving elements 843 are equal, so that the first driving elements 842 can be completely accommodated in the first accommodating cavity 8441, and the second driving elements 843 can be completely accommodated in the first accommodating cavity 8441. into the second receiving cavity 8451. Of course, in this embodiment of the present application, the depth dimension of the first accommodating cavity 8441 may be larger than the height dimension of the first driving element 842 or smaller than the height dimension of the first driving element 842, and the second The depth dimension of the receiving cavity 8451 may be larger than the height dimension of the second driving element 843 or smaller than the height dimension of the second driving element 843 , which is not limited by the present application.
图22图示了根据本申请实施例的所述可变焦摄像模组的另一个变形实施的示意图，其中，在该变形实施例中，所述第一驱动元件842和所述第二驱动元件843的设置位置再次发生变化。具体地，在该变形实施例中，所述第一驱动元件842被设置于所述第一载体844的底表面和所述驱动壳体841的底表面之间，所述第二驱动元件843被设置于所述第二载体845的底表面和所述驱动壳体841的底表面之间。22 is a schematic diagram illustrating another variant implementation of the variable-focus camera module according to the embodiment of the present application, wherein, in this variant embodiment, the first driving element 842 and the second driving element 843 has changed again. Specifically, in this modified embodiment, the first driving element 842 is disposed between the bottom surface of the first carrier 844 and the bottom surface of the driving housing 841 , and the second driving element 843 is It is disposed between the bottom surface of the second carrier 845 and the bottom surface of the driving housing 841 .
更明确地，如图22所示，所述第一载体844具有凹陷地形成于其底表面且横向延伸的第三收容腔8442，所述第二载体845具有凹陷地形成于其底表面且横向延伸的第四收容腔8452，其中，所述第一驱动元件842被设置于所述第三收容腔8442内，所述第二驱动元件843被设置于所述第四收容腔8452内。More specifically, as shown in FIG. 22 , the first carrier 844 has a third receiving cavity 8442 concavely formed on the bottom surface thereof and extending laterally, and the second carrier 845 has a bottom surface thereof concavely formed and laterally extending The extended fourth accommodating cavity 8452 , wherein the first driving element 842 is arranged in the third accommodating cavity 8442 , and the second driving element 843 is arranged in the fourth accommodating cavity 8452 .
相应地，当所述第一驱动元件842在所述第三收容腔8442内驱动所述第一载体844时，所述第三收容腔8442自身形成用于引导所述第一载体844移动的引导槽。也就是，在该变形实施例中，所述第三收容腔8442不仅为所述第一驱动元件842的安装提供安装空间，同时，其自身形成用于引导所述第一载体844移动(或者说，规范所述第一驱动元件842的运动)的导引槽。同样地，当所述第二驱动元件843在所述第四收容腔8452内驱动所述第二载体845时，所述第四收容腔8452自身形成用于引导所述第二载体845移动的引导槽。也就是，在该变形实施例中，所述第四收容腔8452不仅为所述第一驱动元件842的安装提供安装空间，同时，其自身形成用于引导所述第二载体845移动(或者说，规范所述第二驱动元件843的运动)的导引槽。Correspondingly, when the first driving element 842 drives the first carrier 844 in the third accommodating cavity 8442 , the third accommodating cavity 8442 itself forms a guide for guiding the movement of the first carrier 844 groove. That is, in this modified embodiment, the third accommodating cavity 8442 not only provides an installation space for the installation of the first driving element 842, but also is formed to guide the first carrier 844 to move (or , which regulates the movement of the first driving element 842 ). Likewise, when the second driving element 843 drives the second carrier 845 in the fourth accommodating cavity 8452 , the fourth accommodating cavity 8452 itself forms a guide for guiding the movement of the second carrier 845 groove. That is, in this modified embodiment, the fourth receiving cavity 8452 not only provides an installation space for the installation of the first driving element 842, but also is formed to guide the movement of the second carrier 845 (or , which regulates the movement of the second driving element 843 ).
优选地，在该实施例中，所述第三收容腔8442的深度尺寸与所述第一驱动元件842的高度尺寸相等，和/或，所述第四收容腔8452的深度尺寸与所述第二驱动元件843的高度尺寸相等。这样，所述第一驱动元件842能完整地被收容于所述第三收容空间内，和/或，所述第二驱动元件843能完整地被收容于所述第四收容空间内。当然，在本申请其他实施例中，所述第三收容腔8442和所述第四收容腔8452的深度尺寸与所述第一驱动元件 842和所述第二驱动元件843的高度尺寸也可以被配置为其他关系，例如，所述第三收容腔8442和所述第四收容腔8452的深度尺寸大于所述第一驱动元件842和所述第二驱动元件843的高度尺寸等，对此，并不为本申请所局限。Preferably, in this embodiment, the depth dimension of the third accommodating cavity 8442 is equal to the height dimension of the first driving element 842, and/or the depth dimension of the fourth accommodating cavity 8452 is the same as the depth dimension of the first driving element 842. The height dimensions of the two driving elements 843 are equal. In this way, the first driving element 842 can be completely accommodated in the third accommodating space, and/or the second driving element 843 can be completely accommodated in the fourth accommodating space. Of course, in other embodiments of the present application, the depth dimension of the third accommodating cavity 8442 and the fourth accommodating cavity 8452 and the height dimension of the first driving element 842 and the second driving element 843 can also be determined by It is configured in other relationships, for example, the depth dimension of the third accommodating cavity 8442 and the fourth accommodating cavity 8452 is greater than the height dimension of the first driving element 842 and the second driving element 843, etc. For this, and Not limited by this application.
此外，在该变形实施例中，所述第一预压部件850和所述第二预压部860的结构配置也做出调整。具体地，如图23所示，在该变形实施例中，第一预压部件850包括设置于所述第一载体844的底表面的第一磁吸元件852和设置于所述驱动壳体841的底表面且对应于所述第一磁吸元件852的第二磁吸元件853，以通过所述第一磁吸元件852和所述第二磁吸元件853之间的磁作用力提供所述第一驱动元件842的摩擦驱动部8120和所述第一摩擦作动部8131之间的预应力，以及，迫使所述第一摩擦作动部8131抵触于所述第一载体844的底表面。In addition, in this modified embodiment, the structural configurations of the first pre-compression member 850 and the second pre-compression portion 860 are also adjusted. Specifically, as shown in FIG. 23 , in this modified embodiment, the first pre-pressing member 850 includes a first magnetic element 852 disposed on the bottom surface of the first carrier 844 and a first magnetic element 852 disposed on the driving housing 841 The bottom surface of the second magnetic attraction element 853 corresponding to the first magnetic attraction element 852 to provide the magnetic force between the first magnetic attraction element 852 and the second magnetic attraction element 853 The prestress between the friction driving portion 8120 of the first driving element 842 and the first friction actuating portion 8131 , and forcing the first friction actuating portion 8131 against the bottom surface of the first carrier 844 .
在该变形实施中，所述第一磁吸元件852和所述第二磁吸元件853是指能够相互吸引的磁吸组件，例如，所述第一磁吸元件852可被实施为磁体，所述第二磁吸元件853可被实施为磁性部件，例如，由铁、镍、钴等金属制成的材料；再如，所述第一磁吸元件852可被实施为磁体，所述第二磁吸元件853也可被实施为磁体。In this variant implementation, the first magnetic element 852 and the second magnetic element 853 refer to magnetic components that can attract each other. For example, the first magnetic element 852 can be implemented as a magnet, so The second magnetic attraction element 853 may be implemented as a magnetic component, for example, a material made of iron, nickel, cobalt and other metals; for another example, the first magnetic attraction element 852 may be implemented as a magnet, and the second magnetic attraction element 852 may be implemented as a magnet The magnetic attraction element 853 may also be implemented as a magnet.
相应地，在该实施例中，所述第二预压部件860包括设置于所述第二载体845的第三磁吸元件862和设置于所述驱动壳体841且对应于所述第三磁吸元件862的第四磁吸元件863，以通过所述第三磁吸元件862和所述第三磁吸元件862之间的磁作用力提供所述第二驱动元件843的摩擦驱动部8120和所述第二摩擦作动部8132之间的预应力，以及，迫使所述第二摩擦作动部8132抵触于所述第二载体845的底表面。Correspondingly, in this embodiment, the second pre-compression member 860 includes a third magnetic element 862 disposed on the second carrier 845 and a third magnetic element 862 disposed on the driving housing 841 and corresponding to the third magnetic element The fourth magnetic attraction element 863 of the attraction element 862 provides the friction driving part 8120 and The prestress between the second friction actuating parts 8132 and the second friction actuating part 8132 are forced against the bottom surface of the second carrier 845 .
在该变形实施中，所述第三磁吸元件862和所述第四磁吸元件863是指能够相互吸引的磁吸组件，例如，所述第三磁吸元件862可被实施为磁体，所述第四磁吸元件863可被实施为磁性部件，例如，由铁、镍、钴等金属制成的材料；再如，所述第三磁吸元件862可被实施为磁体，所述第四磁吸元件863也可被实施为磁体。In this variant implementation, the third magnetic element 862 and the fourth magnetic element 863 refer to magnetic components capable of attracting each other. For example, the third magnetic element 862 may be implemented as a magnet, so The fourth magnetic attraction element 863 can be implemented as a magnetic component, for example, a material made of iron, nickel, cobalt and other metals; for another example, the third magnetic attraction element 862 can be implemented as a magnet, and the fourth magnetic attraction element 862 The magnetic attraction element 863 may also be implemented as a magnet.
综上，基于本申请实施例的所述可变焦摄像模组被阐明，其中，所述可变焦摄像模组采用压电致动器8100作为驱动器以不仅能够提供足够大的驱动力，而且，能够提供精度更高和行程更长的驱动性能，以满足所述可变焦 摄像模组的变焦需求。To sum up, the variable-focus camera module based on the embodiments of the present application is clarified, wherein the variable-focus camera module adopts the piezoelectric actuator 8100 as a driver so as not only to provide a sufficiently large driving force, but also to The driving performance with higher precision and longer stroke is provided to meet the zoom requirements of the variable-focus camera module.
进一步地，在本申请实施例中，所述压电致动器8100具有相对较小的尺寸，以更好地适配于摄像模组轻型化和薄型化的发展趋势。并且，所述可变焦摄像模组采用合理的布设方案将所述压电致动器8100布设于所述可变焦摄像模组中，以满足可变焦摄像模组的结构和尺寸要求。Further, in the embodiment of the present application, the piezoelectric actuator 8100 has a relatively small size, so as to better adapt to the development trend of lightening and thinning of the camera module. In addition, the variable-focus camera module adopts a reasonable layout scheme to arrange the piezoelectric actuator 8100 in the variable-focus camera module, so as to meet the structure and size requirements of the variable-focus camera module.
示例性可变焦摄像模组Exemplary zoom camera module
图24图示了根据本申请实施例的可变焦摄像模组的示意图。如图1所示，根据本申请实施例的所述可变焦摄像模组被实施为潜望式摄像模组，其包括：光转折元件910、变焦透镜组920、感光组件930和驱动组件940。FIG. 24 illustrates a schematic diagram of a variable-focus camera module according to an embodiment of the present application. As shown in FIG. 1 , the variable-focus camera module according to the embodiment of the present application is implemented as a periscope camera module, which includes: a light turning element 910 , a zoom lens group 920 , a photosensitive component 930 and a driving component 940 .
相应地，如图24和图25所示，在本申请实施例中，所述光转折元件910，用于接收来自被摄目标的成像光线，并将该成像光线转折至所述变焦透镜组920。特别地，在本申请实施例中，所述光转折元件910被配置为将来自被摄目标的成像光线进行90°的转折，以使得所述可变焦摄像模组的整体高度尺寸可得以缩减。这里，考虑到制造公差，在实际工作过程中，所述光转折元件910对成像光线进行转折的角度可能存在1°以内的误差，对此，本领域普通技术人员应可以理解。Correspondingly, as shown in FIG. 24 and FIG. 25 , in the embodiment of the present application, the light turning element 910 is used to receive the imaging light from the subject, and turn the imaging light to the zoom lens group 920 . Particularly, in the embodiment of the present application, the light turning element 910 is configured to turn the imaging light from the photographed object by 90°, so that the overall height dimension of the zoom camera module can be reduced. Here, considering the manufacturing tolerance, in the actual working process, the angle at which the light turning element 910 turns the imaging light may have an error within 1°, which should be understood by those of ordinary skill in the art.
在本申请的具体示例中，所述光转折元件910可被实施为反射镜(例如，平面反射镜)，或者，光转折棱镜(例如，三棱镜)。例如，当所述光转折元件910被实施为光转折棱镜时，所述光转折棱镜的光入射面与其光出射面相互垂直且所述光转折棱镜的光反射面与所述光入射面和所述光出射面成945°角倾斜，这样，当成像光线以垂直于所述光入射面的方式进入所述光转折棱镜后，该成像光线能够在所述光反射面处发生90°转折，以垂直于所述光出射面的方式从所述光出射面输出。In specific examples of the present application, the light-reflecting element 910 may be implemented as a mirror (eg, a flat mirror), or a light-reflecting prism (eg, a triangular prism). For example, when the light turning element 910 is implemented as a light turning prism, the light incident surface of the light turning prism and its light exit face are perpendicular to each other, and the light reflecting surface of the light turning prism is perpendicular to the light incident face and the light turning face. The light exit surface is inclined at an angle of 945°, so that when the imaging light enters the light turning prism in a manner perpendicular to the light incident surface, the imaging light can be turned 90° at the light reflecting surface, so that output from the light exit surface in a manner perpendicular to the light exit surface.
当然，在本申请其他示例中，所述光转折元件910还可以被实施为其他类型的光学元件，对此，并不为本申请所局限。并且，在本申请实施例中，所述可变焦摄像模组还可以包括更多数量的光转折元件910，其一个原因在于：引入所述光转折元件910的一个作用为：对成像光线进行转折，以对具有较长光学总长(TTL：Total Track Length)的所述可变焦摄像模组的光学系统能够进行结构维度上的折叠。相应地，当所述可变焦摄像模组的光学总长(TTL)过长时，可设置更多数量的光转折元件910，以满足所述可变焦 摄像模组的尺寸要求，例如可以设置所述光转折元件910于所述可变焦摄像模组的像侧或者所述变焦透镜组920中任意两个透镜之间。Of course, in other examples of the present application, the light deflection element 910 may also be implemented as other types of optical elements, which are not limited by the present application. In addition, in the embodiment of the present application, the variable-focus camera module may further include a larger number of light-reflecting elements 910, one of the reasons is that: one function of introducing the light-reflecting elements 910 is to bend the imaging light , so that the optical system of the zoom camera module with a longer total optical length (TTL: Total Track Length) can be folded in the structural dimension. Correspondingly, when the total optical length (TTL) of the zoom camera module is too long, a larger number of light turning elements 910 can be provided to meet the size requirements of the zoom camera module. For example, the The light deflection element 910 is located on the image side of the variable-focus camera module or between any two lenses in the zoom lens group 920 .
如图24和图25所示，在本申请实施例中，所述变焦透镜组920对应于所述光转折元件910，用于接收来自所述光转折元件910的成像光线以该成像光线进行汇聚。相应地，如图25所示，所述变焦透镜组920沿着其所设定的光轴方向，包括：固定部分921、变焦部分922和对焦部分923，其中，所述变焦部分922和所述对焦部分923能够在所述驱动组件940的作用下相对于所述固定部分921的位置分别进行调整，从而实现所述可变焦摄像模组的光学性能的调整，包括但不限于光学对焦和光学变焦功能。具体地，可通过所述驱动组件940调整所述变焦部分922和所述对焦部分923，以使得所述可变焦摄像模组的变焦透镜组920的焦距被调整，从而能够清楚地拍摄不同距离的被摄对象。As shown in FIG. 24 and FIG. 25 , in the embodiment of the present application, the zoom lens group 920 corresponds to the light refraction element 910 , and is used for receiving the imaging light from the light refraction element 910 and condensing the imaging light . Correspondingly, as shown in FIG. 25 , the zoom lens group 920 includes a fixed part 921 , a zoom part 922 and a focus part 923 along its set optical axis direction, wherein the zoom part 922 and the focus part 923 The focusing portion 923 can be adjusted relative to the position of the fixed portion 921 under the action of the driving assembly 940, so as to realize the adjustment of the optical performance of the zoom camera module, including but not limited to optical focusing and optical zooming Function. Specifically, the zooming part 922 and the focusing part 923 can be adjusted by the driving assembly 940, so that the focal length of the zoom lens group 920 of the variable-focusing camera module can be adjusted, so as to clearly capture images of different distances. subject.
具体地，在本申请实施例中，所述固定部分921包括第一镜筒和被容置于所述第一镜筒内的至少一光学透镜。在本申请实施例中，所述固定部分921适于被固定于所述驱动组件940中非移动部分，以使得所述固定部分921在所述变焦透镜组920中位置保持恒定。Specifically, in the embodiment of the present application, the fixing portion 921 includes a first lens barrel and at least one optical lens accommodated in the first lens barrel. In the embodiment of the present application, the fixed part 921 is adapted to be fixed to the non-moving part of the driving assembly 940 , so that the position of the fixed part 921 in the zoom lens group 920 remains constant.
值得一提的是，在本申请其他示例中，所述固定部分921也可以不设有所述第一镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述固定部分921可被实施为“裸镜头”。It is worth mentioning that, in other examples of the present application, the fixing portion 921 may not be provided with the first lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that fit with each other. lens. That is, in other examples of the application, the fixed portion 921 may be implemented as a "bare lens".
具体地，在本申请实施例中，所述变焦部分922包括第二镜筒和被容置于所述第二镜筒内的至少一光学透镜，其中，所述变焦部分922适于被所述驱动组件940所驱动以沿着所述变焦透镜组920所设定的光轴方向上进行移动，从而实现所述可变焦摄像模组的光学变焦功能，以使得所述可变焦摄像模组能够实现对不同距离的被摄目标的清晰拍摄。Specifically, in the embodiment of the present application, the zoom portion 922 includes a second lens barrel and at least one optical lens accommodated in the second lens barrel, wherein the zoom portion 922 is suitable for being used by the second lens barrel. The driving component 940 is driven to move along the optical axis direction set by the zoom lens group 920, so as to realize the optical zoom function of the zoom camera module, so that the zoom camera module can realize Clear shots of subjects at different distances.
值得一提的是，在本申请其他示例中，所述变焦部分922也可以不设有所述第二镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述变焦部分922也可被实施为“裸镜头”。It is worth mentioning that, in other examples of the present application, the zoom portion 922 may not be provided with the second lens barrel, but only includes at least one optical lens, for example, it only includes a plurality of optical pieces fitted with each other lens. That is, in other examples of the application, the zoom portion 922 may also be implemented as a "bare lens".
具体地，在本申请实施例中，所述对焦部分923包括第三镜筒和被容置于所述第三镜筒内的至少一光学透镜，其中，所述对焦部分923适于被所述 驱动组件940所驱动以沿着所述变焦透镜组920所设定的光轴方向上进行移动，从而实现所述可变焦摄像模组的对焦功能。更明确地，通过驱动所述对焦部分923所实现的光学对焦能够补偿因移动所述变焦部分922而导致的焦点偏移，从而补偿所述可变焦摄像模组的成像性能，使得其成像质量满足预设要求。Specifically, in the embodiment of the present application, the focusing portion 923 includes a third lens barrel and at least one optical lens accommodated in the third lens barrel, wherein the focusing portion 923 is suitable for being used by the third lens barrel. The driving component 940 is driven to move along the optical axis direction set by the zoom lens group 920, so as to realize the focusing function of the zoom camera module. More specifically, the optical focusing achieved by driving the focusing portion 923 can compensate for the focus shift caused by moving the zooming portion 922, thereby compensating the imaging performance of the zoom camera module, so that the imaging quality thereof satisfies the requirements. Default requirements.
值得一提的是，在本申请其他示例中，所述对焦部分923也可以不设有所述第三镜筒，其仅包括至少一光学透镜，例如，其仅包括相互嵌合的多片光学透镜。也就是，在申请其他示例中，所述对焦部分923也可被实施为“裸镜头”。It is worth mentioning that, in other examples of the present application, the focusing portion 923 may not be provided with the third lens barrel, and it only includes at least one optical lens, for example, it only includes a plurality of optical pieces that fit with each other. lens. That is, in other examples of the application, the focusing portion 923 may also be implemented as a "bare lens".
更具体地，如图24和图25所示，在本申请实施例中，所述变焦透镜组920的固定部分921、所述变焦部分922和所述对焦部分923被依次地设置(也就是，在所述变焦透镜组920中，所述变焦部分922位于所述固定部分921和所述对焦部分923之间)，即，来自所述光转折元件910的成像光线在穿过所述变焦透镜组920时，其将依次透过所述固定部分921、再透过所述变焦部分922，然后，再穿过所述对焦部分923。More specifically, as shown in FIGS. 24 and 25 , in the embodiment of the present application, the fixed part 921 , the zoom part 922 and the focus part 923 of the zoom lens group 920 are arranged in sequence (that is, In the zoom lens group 920, the zoom portion 922 is located between the fixed portion 921 and the focus portion 923), that is, the imaging light from the light-refraction element 910 passes through the zoom lens group 920, it will pass through the fixed part 921, then through the zoom part 922, and then through the focusing part 923 in sequence.
当然，在本申请的其他示例中，也可以调整所述固定部分921、所述变焦部分922和所述对焦部分923之间的相对位置关系，例如，将所述固定部分921设置于所述变焦部分922和所述对焦部分923之间，再如，将所述对焦部分923设置于所述变焦部分922和所述固定部分921之间。应可以理解，在本申请实施例中，所述固定部分921、所述变焦部分922和所述对焦部分923之间的相对位置关系可根据所述可变焦摄像模组的光学设计要求和结构设计要求进行调整。Of course, in other examples of the present application, the relative positional relationship between the fixed part 921 , the zooming part 922 and the focusing part 923 can also be adjusted. Part 922 and the focusing part 923 , for another example, the focusing part 923 is arranged between the zooming part 922 and the fixing part 921 . It should be understood that, in the embodiment of the present application, the relative positional relationship between the fixed part 921 , the zoom part 922 and the focus part 923 can be designed according to the optical design requirements and structural design of the zoom camera module adjustment is required.
但特别地，在本申请实施例中，考虑到所述可变焦摄像模组的结构设计，优选地，所述对焦部分923和所述变焦部分922相邻地设置。也就是，根据本申请实施例的所述变焦透镜组920中各个部分的位置，优选地被配置为：所述变焦部分922位于所述固定部分921和所述对焦部分923之间，或者，所述对焦部分923位于所述固定部分921和所述变焦部分922之间。应可以理解，所述变焦部分922和所述对焦部分923是所述变焦透镜组920中需要移动的部分，因此，将所述对焦部分923和所述变焦部分922相邻地设置，这样的位置设定有利于布置所述驱动组件940，关于此部分将在所述驱动组件940的具体描述中展开。But in particular, in the embodiment of the present application, considering the structural design of the variable-focus camera module, preferably, the focusing portion 923 and the zooming portion 922 are disposed adjacent to each other. That is, the position of each part in the zoom lens group 920 according to the embodiment of the present application is preferably configured such that the zoom part 922 is located between the fixed part 921 and the focusing part 923, or, all the The focusing portion 923 is located between the fixing portion 921 and the zooming portion 922 . It should be understood that the zooming part 922 and the focusing part 923 are parts of the zoom lens group 920 that need to be moved, therefore, the focusing part 923 and the zooming part 922 are arranged adjacent to each other, such a position The setting facilitates the arrangement of the drive assembly 940 , which will be expanded in the detailed description of the drive assembly 940 .
还值得一提的是，在如图25所示意的示例中，虽然以所述变焦透镜组920，包括一个所述固定部分921、一个所述变焦部分922和一个所述对焦部分923为示例，但是，本领域普通技术人员应知晓，在本申请其他示例中，所述固定部分921、所述变焦部分922和所述对焦部分923的具体数量选择，并不为本申请所局限，其可根据所述可变焦摄像模组的光学设计要求进行调整。It is also worth mentioning that, in the example shown in FIG. 25 , although the zoom lens group 920 includes one of the fixed parts 921 , one of the zoom parts 922 and one of the focus parts 923 as an example, However, those of ordinary skill in the art should know that, in other examples of the present application, the specific number of the fixed portion 921 , the zoom portion 922 and the focusing portion 923 is not limited by the present application, and can be selected according to The optical design requirements of the variable-focus camera module are adjusted.
为了对进入所述感光组件930的成像光线进行限制，在本申请一些示例中，所述可变焦摄像模组，进一步包括设置于所述感光组件930的感光路径上的光阻挡元件(未有图示意)，其中，所述光阻挡元件能够至少部分地阻挡成像光线投射，以尽可能地减少杂散光对所述可变焦摄像模组的成像质量的影响。In order to limit the imaging light entering the photosensitive assembly 930, in some examples of the present application, the variable-focus camera module further includes a light blocking element (not shown in the figure) disposed on the photosensitive path of the photosensitive assembly 930 Schematic), wherein the light blocking element can at least partially block the projection of imaging light, so as to reduce the influence of stray light on the imaging quality of the variable-focus camera module as much as possible.
如图25所示，在本申请实施例中，所述感光组件930对应于所述变焦透镜组920，用于接收来自所述变焦透镜组920的成像光线并进行成像，其中，所述感光组件930包括线路板931、电连接于所述线路板931的感光芯片932和被保持于所述感光芯片932的感光路径上的滤光元件933。更具体地，在如图25所示意的示例中，所述感光组件930，进一步包括设置于所述线路板931的支架934，其中，所述滤光元件933被安装于所述支架934上以被保持于所述感光芯片932的感光路径上。As shown in FIG. 25 , in the embodiment of the present application, the photosensitive component 930 corresponds to the zoom lens group 920 and is used to receive the imaging light from the zoom lens group 920 and perform imaging, wherein the photosensitive component 930 includes a circuit board 931 , a photosensitive chip 932 electrically connected to the circuit board 931 , and a filter element 933 held on the photosensitive path of the photosensitive chip 932 . More specifically, in the example shown in FIG. 25 , the photosensitive assembly 930 further includes a bracket 934 disposed on the circuit board 931 , wherein the filter element 933 is mounted on the bracket 934 to are held on the photosensitive path of the photosensitive chip 932 .
值得一提的是，在本申请其他示例中，所述滤光元件933被保持于所述感光芯片932的感光路径上的具体实施方式并不为本申请所局限，例如，所述滤光元件933可被实施为滤波膜并涂覆于所述变焦透镜组920的某一光学透镜的表面，以起到滤光的效果，再如，所述感光组件930可进一步包括安装于所述支架的滤光元件支架(未有图示意)，其中，所述滤光元件933以被安装于所述滤光元件支架的方式被保持于所述感光芯片932的感光路径上。It is worth mentioning that, in other examples of the present application, the specific implementation of the filter element 933 held on the photosensitive path of the photosensitive chip 932 is not limited by the present application, for example, the filter element 933 can be implemented as a filter film and coated on the surface of a certain optical lens of the zoom lens group 920 to have a filtering effect. For another example, the photosensitive component 930 can further include a film mounted on the bracket. A filter element holder (not shown), wherein the filter element 933 is held on the photosensitive path of the photosensitive chip 932 by being mounted on the filter element holder.
如前所述，为了满足越来越广泛的市场需求，高像素、大芯片、小尺寸是现有摄像模组不可逆转的发展趋势。随着所述感光芯片932朝着高像素和大芯片的方向发展，与所述感光芯片932适配的所述变焦透镜组920的尺寸也逐渐增大，这给用于驱动所述变焦透镜组920的所述对焦部分923和所述变焦部分922的驱动元件提出了新的技术要求。As mentioned above, in order to meet more and more extensive market demands, high pixel, large chip, and small size are the irreversible development trends of existing camera modules. As the photosensitive chip 932 develops in the direction of high pixels and large chips, the size of the zoom lens group 920 adapted to the photosensitive chip 932 also gradually increases, which provides more advantages for driving the zoom lens group. The driving elements of the focusing part 923 and the zooming part 922 of the 920 put forward new technical requirements.
新的技术要求主要集中于两个方面：相对更大的驱动力，以及，更优的驱动性能(具体地包括：更高精度的驱动控制和更长的驱动行程)。并且， 除了需要寻找满足新技术要求的驱动器以外，在选择新驱动器时还需要考虑所选择的驱动器能够适应于当下摄像模组轻型化和薄型化的发展趋势。The new technical requirements mainly focus on two aspects: relatively larger driving force, and better driving performance (specifically including: higher-precision driving control and longer driving stroke). Moreover, in addition to finding a driver that meets the requirements of the new technology, it is also necessary to consider whether the selected driver can adapt to the current development trend of lightening and thinning of the camera module when selecting a new driver.
经研究和试验，本申请发明人提出了一种具有新型结构的压电致动器，该压电致动器能够满足所述可变焦摄像模组对于驱动器的技术要求。并且，进一步地采用合适的布置方式将所述压电致动器布置于所述可变焦摄像模组内，以使得其满足所述可变焦摄像模组的结构设计要求和尺寸设计要求。After research and experimentation, the inventor of the present application proposes a piezoelectric actuator with a novel structure, which can meet the technical requirements of the variable-focus camera module for the driver. Furthermore, the piezoelectric actuator is further arranged in the variable-focus camera module in an appropriate arrangement manner, so that it meets the structural design requirements and size design requirements of the variable-focus camera module.
具体地，如图24和图26所示，在本申请实施例中，用于驱动所述变焦透镜组920的所述驱动组件940，包括：驱动壳体941、第一驱动元件942、第二驱动元件943、第一载体944和第二载体945，其中，所述第一驱动元件942、所述第二驱动元件943、所述第一载体944和第二载体945被收容于所述驱动壳体941内，这样所述可变焦摄像模组具有相对更为紧凑的结构布置。Specifically, as shown in FIGS. 24 and 26 , in the embodiment of the present application, the driving assembly 940 for driving the zoom lens group 920 includes: a driving housing 941 , a first driving element 942 , a second driving A driving element 943, a first carrier 944 and a second carrier 945, wherein the first driving element 942, the second driving element 943, the first carrier 944 and the second carrier 945 are accommodated in the driving housing In this way, the variable-focus camera module has a relatively more compact structural arrangement.
具体地，在该实施例中，所述第一驱动元件942和所述第二驱动元件943被实施为压电致动器9100，所述变焦部分922被安装于所述第一载体944，所述对焦部分923被安装于所述第二载体945，其中，所述第一驱动元件942被摩擦地耦合于所述第一载体944并被配置为在被驱动后以沿着两个方向弯曲振动的方式沿着该光轴设定的方向呈二维轨迹运动，以此通过摩擦来驱动所述第一载体944以带动所述变焦部分922沿着该光轴所设定的方向移动，所述第二驱动元件943被摩擦地耦合于所述第二载体945并被配置为在被驱动后以沿着两个方向弯曲振动的方式沿着所述光轴所设定的方向呈二维轨迹运动，以此通过摩擦来驱动所述第二载体945以带动所述对焦部分923沿着该光轴所设定的方向移动。也就是，在本申请实施例中，以压电致动器9100作为驱动器，用于驱动所述变焦透镜组中的所述变焦部分922和所述对焦部分923。Specifically, in this embodiment, the first driving element 942 and the second driving element 943 are implemented as piezoelectric actuators 9100, and the zoom portion 922 is mounted on the first carrier 944, so The focusing portion 923 is mounted to the second carrier 945, wherein the first drive element 942 is frictionally coupled to the first carrier 944 and configured to flexibly vibrate in both directions after being driven The first carrier 944 is driven by friction to drive the zoom part 922 to move along the direction set by the optical axis, and the The second driving element 943 is frictionally coupled to the second carrier 945 and is configured to move in a two-dimensional trajectory along the direction set by the optical axis in a manner of bending vibration in two directions after being driven , thereby driving the second carrier 945 through friction to drive the focusing portion 923 to move along the direction set by the optical axis. That is, in the embodiment of the present application, the piezoelectric actuator 9100 is used as a driver for driving the zoom portion 922 and the focus portion 923 in the zoom lens group.
图27A至图27L图示了根据申请实施例的压电致动器的示意图。如图27A所示，根据本申请实施例的所述压电致动器9100，包括：致动系统9110和驱动电路系统9120，其中，所述致动系统9110在所述驱动电路系统9120的控制下以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动。特别地，在该实施例中，所述压电致动器9100是一种高效的半共振驱动系统，在被导通后，所述压电致动器9100的致动系统9110以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动，以摩擦地耦合并沿着该预设方向移 动被作用对象。27A-27L illustrate schematic diagrams of piezoelectric actuators according to embodiments of the application. As shown in FIG. 27A , the piezoelectric actuator 9100 according to an embodiment of the present application includes an actuation system 9110 and a drive circuit system 9120 , wherein the actuation system 9110 controls the drive circuit system 9120 The lower part moves in a two-dimensional trajectory along a preset direction in the manner of bending vibration in two directions. In particular, in this embodiment, the piezoelectric actuator 9100 is a high-efficiency semi-resonant drive system. After being turned on, the actuation system 9110 of the piezoelectric actuator 9100 operates along two It moves in a two-dimensional trajectory along a preset direction in the manner of bending vibration in one direction, so as to frictionally couple and move the acted object along the preset direction.
如图27A所示，在该实施例中，所述致动系统9110包括压电板结构9111和固定于所述压电板结构9111的摩擦驱动部9112。这里，所述压电板结构9111可以是对称的，也可以是不对称的。所述压电板结构9111具有沿着其深度方向延伸的第一侧表面和沿着其高度方向延伸的且与所述第一侧表面相邻的第二侧表面，其中，所述压电板结构9111沿着其深度方向(例如，如图27A中所示意的D)具有第一共振频率且沿着其高度方向(例如，如图27A中所示意的H)具有第二共振频率。通常，所述压电板结构9111的高度尺寸大于其深度尺寸，也就是，所述第二共振频率大于所述第一共振频率。As shown in FIG. 27A , in this embodiment, the actuating system 9110 includes a piezoelectric plate structure 9111 and a friction driving portion 9112 fixed to the piezoelectric plate structure 9111 . Here, the piezoelectric plate structure 9111 may be symmetrical or asymmetrical. The piezoelectric plate structure 9111 has a first side surface extending along its depth direction and a second side surface extending along its height direction and adjacent to the first side surface, wherein the piezoelectric plate The structure 9111 has a first resonance frequency along its depth direction (eg, D as illustrated in FIG. 27A ) and a second resonance frequency along its height direction (eg, H as illustrated in FIG. 27A ). Generally, the height dimension of the piezoelectric plate structure 9111 is greater than the depth dimension thereof, that is, the second resonance frequency is greater than the first resonance frequency.
如图27B所示，在该实施例中，所述压电板结构9111包括形成在一起的至少一压电层。所述压电板结构9111的厚度尺寸的范围为5um至40um。特别地，在本申请实施例中，所述至少一压电层结构可以为单一压电层，也可以包括多个叠置在一起的多个压电层(例如，是共烧在一起的多个平行压电层)。这里，与单一压电层相比，多个压电层可以在施加较小的电压的前提下就达到相近的效果。As shown in FIG. 27B, in this embodiment, the piezoelectric plate structure 9111 includes at least one piezoelectric layer formed together. The thickness of the piezoelectric plate structure 9111 ranges from 5um to 40um. In particular, in the embodiments of the present application, the at least one piezoelectric layer structure may be a single piezoelectric layer, or may include a plurality of piezoelectric layers stacked together (for example, a plurality of piezoelectric layers that are co-fired together). parallel piezoelectric layers). Here, compared with a single piezoelectric layer, multiple piezoelectric layers can achieve similar effects under the premise of applying a smaller voltage.
如图27A所示，在该实施例中，所述压电板结构9111包括形成于所述第二侧表面的第一压电区域91111、第二压电区域91112和第三压电区域91113，以及，形成于所述第一侧表面的第四压电区域91114，其中，所述第二压电区域91112位于所述第一压电区域91111和所述第三压电区域91113区间，且所述第四压电区域91114与所述第二压电区域91112相邻的。并且，所述压电板结构9111进一步包括电连接于所述第一压电区域91111的第一电极对91115、电连接于所述第二压电区域91112的第二电极对91116、电连接于所述第三压电区域91113的第三电极对91117和电连接于所述第四压电区域91114的第四电极对91118。也就是，在如图24所示意的示例中，所述压电板结构9111包括4个压电区域以及分别与所述4个压电区域电连接的四个电极对。当然，在本申请其他示例中，所述压电板结构9111可以包括其他数量的压电区域和电极对，对此，并不为本申请所局限。As shown in FIG. 27A, in this embodiment, the piezoelectric plate structure 9111 includes a first piezoelectric region 91111, a second piezoelectric region 91112 and a third piezoelectric region 91113 formed on the second side surface, and a fourth piezoelectric region 91114 formed on the first side surface, wherein the second piezoelectric region 91112 is located between the first piezoelectric region 91111 and the third piezoelectric region 91113, and all the The fourth piezoelectric region 91114 is adjacent to the second piezoelectric region 91112 . In addition, the piezoelectric plate structure 9111 further includes a first electrode pair 91115 electrically connected to the first piezoelectric region 91111, a second electrode pair 91116 electrically connected to the second piezoelectric region 91112, and a second electrode pair 91116 electrically connected to the second piezoelectric region 91112. The third electrode pair 91117 of the third piezoelectric region 91113 is electrically connected to the fourth electrode pair 91118 of the fourth piezoelectric region 91114 . That is, in the example illustrated in FIG. 24 , the piezoelectric plate structure 9111 includes four piezoelectric regions and four electrode pairs electrically connected to the four piezoelectric regions, respectively. Of course, in other examples of the present application, the piezoelectric plate structure 9111 may include other numbers of piezoelectric regions and electrode pairs, which are not limited by the present application.
并且，在本申请的其他一些示例中，所述第一压电区域91111和所述第三压电区域91113中的一个压电区域，和/或，所述第二压电区域91112和所述第四压电区域91114中的一个可以是无源的，这可以降低驱动振幅，但不会改变所述致动系统9110的运行。And, in some other examples of the present application, one of the first piezoelectric region 91111 and the third piezoelectric region 91113, and/or the second piezoelectric region 91112 and the One of the fourth piezoelectric regions 91114 can be passive, which can reduce the drive amplitude, but not change the operation of the actuation system 9110.
进一步地，在本申请实施例中，所述第一压电区域91111、所述第二压电区域91112、所述第三压电区域91113和所述第四压电区域91114具有通过在制造过程中极化而产生的极性，从而形成正极和负极。具体地，所述第一压电区域91111在制造过程中极化，以使得对应于所述第一压电区域91111的第一电极对91115中一个电极形成负极(例如，如图27A中所示意的A-)，另一个电极形成正极(例如，如图27A中所示意的A+)；所述第三压电区域91113在制造过程中极化，以使得对应于所述第三压电区域91113的第三电极对91117中一个电极形成负极(例如，如图27A中所示意的B-)，另一个电极形成正极(例如，如图27A中所示意的B+)；所述第二压电区域91112在制造过程中极化，以使得对应于所述第二压电区域91112的第二电极对91116中一个电极形成负极(例如，如图27A中所示意的C-)，另一个电极形成正极(例如，如图27A中所示意的C+)；所述第四压电区域91114在制造过程中极化，以使得对应于所述第四压电区域91114的第四电极对91118中一个电极形成负极(例如，如图27A中所示意的D-)，另一个电极形成正极(例如，如图27A中所示意的D+)。应注意到在该实施例中，所述第一电极对91115和/或所述第二电极对91116和/或所述第三电极对91117和/或所述第二电极对91116中各个电极具有“L”型。Further, in the embodiment of the present application, the first piezoelectric region 91111, the second piezoelectric region 91112, the third piezoelectric region 91113 and the fourth piezoelectric region 91114 have the The polarities produced by the neutralization, thus forming the positive and negative electrodes. Specifically, the first piezoelectric region 91111 is polarized during fabrication such that one electrode of the first electrode pair 91115 corresponding to the first piezoelectric region 91111 forms a negative electrode (eg, as illustrated in FIG. 27A ) A-), the other electrode forms the positive electrode (eg, A+ as illustrated in FIG. 27A ); the third piezoelectric region 91113 is polarized during manufacture so as to correspond to the third piezoelectric region 91113 In the third electrode pair 91117 of , one electrode forms a negative electrode (eg, B- as illustrated in FIG. 27A ), and the other electrode forms a positive electrode (eg, B+ as illustrated in FIG. 27A ); the second piezoelectric region 91112 is polarized during manufacture such that one electrode of the second electrode pair 91116 corresponding to the second piezoelectric region 91112 forms the negative electrode (eg, C- as illustrated in Figure 27A) and the other electrode forms the positive electrode (eg, C+ as illustrated in FIG. 27A ); the fourth piezoelectric region 91114 is polarized during fabrication such that one electrode of the fourth electrode pair 91118 corresponding to the fourth piezoelectric region 91114 is formed The negative electrode (eg, D- as illustrated in Figure 27A), the other electrode forms the positive electrode (eg, D+ as illustrated in Figure 27A). It should be noted that in this embodiment, each electrode of the first electrode pair 91115 and/or the second electrode pair 91116 and/or the third electrode pair 91117 and/or the second electrode pair 91116 has "L" type.
如图27A和图27B所示，在该实施例中，所述第一电极对91115中一个电极与所述第一压电区域91111的每个压电层的一个内部电极耦合并交错连接，所述第一电极对91115中另外一个电极被交错地连接于所述第一压电区域91111的与每个压电层相对的内部电极，其中，在极化过程中所述第一电极对91115的一个电极被确定为正极，另一个电极被确定为负极。所述第二电极对91116中一个电极与所述第二压电区域91112的每个压电层的一个内部电极耦合并交错连接，所述第二电极对91116中另外一个电极被交错地连接于所述第二压电区域91112的与每个压电层相对的内部电极，其中，在极化过程中所述第二电极对91116的一个电极被确定为正极，另一个电极被确定为负极。所述第三电极对91117中一个电极与所述第三压电区域91113的每个压电层的一个内部电极耦合并交错连接，所述第三电极对91117中另外一个电极被交错地连接于所述第三压电区域91113的与每个压电层相对的内部电极，其中，在极化过程中所述第三电极对91117的一个电极被确定为正极，另一个电极被确定为负极。所述第三电极对91117中一个电极与所述第 三压电区域91113的每个压电层的一个内部电极耦合并交错连接，所述第三电极对91117中另外一个电极被交错地连接于所述第三压电区域91113的与每个压电层相对的内部电极，其中，在极化过程中所述第三电极对91117的一个电极被确定为正极，另一个电极被确定为负极。As shown in FIG. 27A and FIG. 27B , in this embodiment, one electrode in the first electrode pair 91115 is coupled and cross-connected with one inner electrode of each piezoelectric layer of the first piezoelectric region 91111, so The other electrode of the first electrode pair 91115 is alternately connected to the inner electrode of the first piezoelectric region 91111 opposite to each piezoelectric layer, wherein the first electrode pair 91115 is staggered during the polarization process. One electrode was identified as the positive electrode and the other electrode was identified as the negative electrode. One electrode of the second electrode pair 91116 is coupled and cross-connected to one internal electrode of each piezoelectric layer of the second piezoelectric region 91112, and the other electrode of the second electrode pair 91116 is cross-connected to The inner electrodes of the second piezoelectric region 91112 opposite to each piezoelectric layer, wherein one electrode of the second electrode pair 91116 is determined as a positive electrode and the other electrode is determined as a negative electrode during the polarization process. One electrode of the third electrode pair 91117 is coupled and cross-connected to one internal electrode of each piezoelectric layer of the third piezoelectric region 91113, and the other electrode of the third electrode pair 91117 is cross-connected to The inner electrodes of the third piezoelectric region 91113 opposite to each piezoelectric layer, wherein one electrode of the third electrode pair 91117 is determined as a positive electrode and the other electrode is determined as a negative electrode during the polarization process. One electrode of the third electrode pair 91117 is coupled and cross-connected to one internal electrode of each piezoelectric layer of the third piezoelectric region 91113, and the other electrode of the third electrode pair 91117 is cross-connected to The inner electrodes of the third piezoelectric region 91113 opposite to each piezoelectric layer, wherein one electrode of the third electrode pair 91117 is determined as a positive electrode and the other electrode is determined as a negative electrode during the polarization process.
进一步参考图27A，在该实施例中，所述驱动电路系统9120包括第一驱动电路9121和第二驱动电路9122，所述第一驱动电路9121电连接于所述第一电极对91115和所述第三电极对91117，所述第二驱动电路9122电连接于所述第二电极对91116和所述第四电极对91118，其中，所述第一驱动电路9121和所述第二驱动电路9122可以是全桥驱动电路，也可以是其他驱动电路。特别地，在该实施例中，所述驱动电路系统9120具有94种输出电路振动信号：124(1)-124(4)，其中，所述输出电路振动信号可以是如图27C所示出的超声方波振动信号，也可以是其他信号，例如，正弦曲线状信号。Referring further to FIG. 27A, in this embodiment, the driving circuit system 9120 includes a first driving circuit 9121 and a second driving circuit 9122, the first driving circuit 9121 is electrically connected to the first electrode pair 91115 and the The third electrode pair 91117, the second driving circuit 9122 is electrically connected to the second electrode pair 91116 and the fourth electrode pair 91118, wherein the first driving circuit 9121 and the second driving circuit 9122 can be It is a full-bridge drive circuit, or other drive circuits. Particularly, in this embodiment, the driving circuit system 9120 has 94 kinds of output circuit vibration signals: 124(1)-124(4), wherein the output circuit vibration signals can be as shown in FIG. 27C The ultrasonic square wave vibration signal can also be other signals, for example, a sinusoidal signal.
在所述压电致动器9100工作中，所述压电板结构9111具有两种弯曲模式：模式1和模式2，其中，模式1和模式2各自具有不同的共振频率。所述压电板结构9111的弯曲模式的振动幅值取决于所述输出的电路振动信号的振动频率。具体地，当所述驱动电路系统9120在对于两种弯曲模式中的一种的共振频率下(例如，模式1的共振频率)施加电路振动信号至所述压电板结构9111时，对于在其共振频率下运行的弯曲模式的振动幅值全部放大，且对于在部分共振运行的其他弯曲模式仅仅被部分放大。更明确地，当所述第一驱动电路9121输出的电路振动信号的振动频率为所述第一共振频率时，所述压电板结构9111在其高度方向发生共振且在其深度方向发生部分共振，以使得所述压电板结构9111以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动；其中，当所述第二驱动电路9122所输入的电路振动信号的振动频率为所述第二共振频率时，所述压电板结构9111在其深度方向发生共振且在其高度方向发生部分共振，以使得所述压电板结构9111以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动。In the operation of the piezoelectric actuator 9100, the piezoelectric plate structure 9111 has two bending modes: mode 1 and mode 2, wherein mode 1 and mode 2 each have different resonance frequencies. The vibration amplitude of the bending mode of the piezoelectric plate structure 9111 depends on the vibration frequency of the output circuit vibration signal. Specifically, when the driving circuit system 9120 applies a circuit vibration signal to the piezoelectric plate structure 9111 at the resonance frequency for one of the two bending modes (eg, the resonance frequency of Mode 1), for the piezoelectric plate structure 9111 The vibrational amplitudes of the flexural modes operating at the resonant frequency are fully amplified, and are only partially amplified for the other flexural modes operating at partial resonance. More specifically, when the vibration frequency of the circuit vibration signal output by the first drive circuit 9121 is the first resonance frequency, the piezoelectric plate structure 9111 resonates in its height direction and partially resonates in its depth direction. , so that the piezoelectric plate structure 9111 moves in a two-dimensional trajectory along a preset direction by bending and vibrating in two directions; wherein, when the vibration frequency of the circuit vibration signal input by the second drive circuit 9122 is When it is the second resonance frequency, the piezoelectric plate structure 9111 resonates in its depth direction and partially resonates in its height direction, so that the piezoelectric plate structure 9111 bends and vibrates in two directions. It moves in a two-dimensional trajectory along a preset direction.
更具体地，在如图27A和图27C所示意的示例中，来自所述第一驱动电路9121和所述第二驱动电路9122能够输出4种电路振动信号：124(1)-124(4)。在该实施例中，所述电路振动信号的电压为2.98V，4种振动信号各自具有振动频率，该振动频率基本上等于所述压电板结构9111的两种弯曲模式中其中任意一种的共振频率，即，该振动频率基本上等于所述第一共振 频率或所述第二共振频率。另外，来自输出124(1)-124(2)的电路振动信号由所述驱动电路系统9120相对于来自输出124(3)-124(4)的电路振动信号相移约0度至90度，从而以沿两种方向中的一种方向移动。当所述驱动电路系统9120调节输出12491)-124(2)相对于输出124(3)-124(4)相移到约-180度至-90度，以沿相对方向(即两种方向中的相对的另一种方向)移动可移动构件。More specifically, in the example illustrated in FIGS. 27A and 27C , four types of circuit vibration signals can be output from the first drive circuit 9121 and the second drive circuit 9122: 124(1)-124(4) . In this embodiment, the voltage of the circuit vibration signal is 2.98V, and each of the four vibration signals has a vibration frequency, and the vibration frequency is substantially equal to any one of the two bending modes of the piezoelectric plate structure 9111 The resonance frequency, ie the vibration frequency is substantially equal to the first resonance frequency or the second resonance frequency. In addition, the circuit vibration signals from outputs 124(1)-124(2) are phase-shifted by the drive circuitry 9120 relative to the circuit vibration signals from outputs 124(3)-124(4) by about 0 degrees to 90 degrees, to move in one of two directions. When the drive circuitry 9120 adjusts the outputs 12491)-124(2) to be phase-shifted to about -180 degrees to -90 degrees relative to the outputs 124(3)-124(4) to move in the opposite direction (ie, in the two directions) in the opposite direction) to move the movable member.
图27D至图27F图示了根据本申请实施例的所述压电致动器9100以第一模式运动的示意图。如图27D至图27F所示，该弯曲模式是由于来自不同阶段的输出124(1)-124(2)的电路振动信号施加至具有相反极性的所述第一压电区域91111和所述第三压电区域91113而产生的。当所有电极的压电为0时，图27D示出了所述压电板结构9111静止时的情况。当输出124(1)和124(2)之间的电压差为正时，所述第一压电区域91111的长度增加，而所述第三压电区域91113的长度减小，使得所述压电板如图27E所示弯曲。当输出124(1)和124(2)之间的电压差是负时，所述第一压电区域91111的长度减小，而所述第三压电区域91113的长度增加，使得所述压电板板结构如图27F所示弯曲。27D-27F illustrate schematic diagrams of the piezoelectric actuator 9100 moving in a first mode according to an embodiment of the present application. As shown in FIGS. 27D to 27F, this bending mode is due to the application of circuit vibration signals from outputs 124(1)-124(2) of different stages to the first piezoelectric region 91111 and the first piezoelectric region 91111 having opposite polarities The third piezoelectric region 91113 is generated. When the piezoelectricity of all electrodes is 0, FIG. 27D shows the situation when the piezoelectric plate structure 9111 is at rest. When the voltage difference between outputs 124(1) and 124(2) is positive, the length of the first piezoelectric region 91111 increases and the length of the third piezoelectric region 91113 decreases, so that the voltage The plate is bent as shown in Figure 27E. When the voltage difference between outputs 124(1) and 124(2) is negative, the length of the first piezoelectric region 91111 decreases and the length of the third piezoelectric region 91113 increases, so that the voltage The electric plate structure is bent as shown in Figure 27F.
图27G至图27I图示了根据本申请实施例的所述压电致动器9100以第二模式运动的示意图。27G-27I illustrate schematic diagrams of the piezoelectric actuator 9100 moving in a second mode according to an embodiment of the present application.
如图27G至图27I所示，该弯曲模式是由于来自不同阶段的输出124(3)-124(4)的振动信号施加至具有相反极性的所述第二压电区域91112和所述第四压电区域91114而产生的。当所有电极的压电为0时，图27G示出了所述压电板结构9111静止时的情况。当输出124(3)和124(4)之间的电压差是正时，所述第二压电区域91112的长度减小，而所述第四压电区域91114的长度增加，使得所述压电板结构9111如图27H所示弯曲。当输出124(3)和124(4)之间的电压差是负时，所述第二压电区域91112的长度增加，而所述第四压电区域91114的长度减小，使得所述压电板板结构如图27I所示弯曲。As shown in FIGS. 27G to 27I, this bending mode is due to the application of vibration signals from outputs 124(3)-124(4) of different stages to the second piezoelectric region 91112 and the first piezoelectric region 91112 having opposite polarities Four piezoelectric regions 91114 are produced. When the piezoelectricity of all electrodes is 0, FIG. 27G shows the situation when the piezoelectric plate structure 9111 is at rest. When the voltage difference between outputs 124(3) and 124(4) is positive, the length of the second piezoelectric region 91112 decreases and the length of the fourth piezoelectric region 91114 increases, so that the piezoelectric The plate structure 9111 is bent as shown in Figure 27H. When the voltage difference between outputs 124(3) and 124(4) is negative, the length of the second piezoelectric region 91112 increases and the length of the fourth piezoelectric region 91114 decreases, so that the voltage The electric plate structure is bent as shown in Figure 27I.
相应地，当将如图26中所示意的输出电路振动信号施加至所述致动系统9110时，所述致动系统9110形成椭圆轨道状的二维轨迹，也就是，所述驱动电路系统9120能够根据相位差值控制所述致动系统9110在该椭圆轨道路径上旋转的方向，使得所述致动系统9110能够以相对更小且更精确的步 进速度驱动被作用对象。Accordingly, when the output circuit vibration signal as illustrated in FIG. 26 is applied to the actuation system 9110, the actuation system 9110 forms an elliptical orbit-like two-dimensional trajectory, that is, the drive circuit system 9120 The rotation direction of the actuating system 9110 on the elliptical orbital path can be controlled according to the phase difference value, so that the actuating system 9110 can drive the acted object at a relatively smaller and more precise step speed.
图27J图示了根据本申请实施例的所述压电致动器9100的压电板结构9111的另一示意图。如图27J所示，在本申请实施例中，所述致动系统9110进一步包括固定于所述压电板结构9111的摩擦驱动部9112，其中，所述摩擦驱动部9112适于可摩擦地耦合于被作用对象以通过摩擦来驱动该被作用对象沿着预定方向移动。为了使得所述摩擦驱动部9112能够摩擦地耦接于该被作用对象，如图27K所示，在安装过程中，通常为所述压电致动器9100配置预压力装置，所述预压力装置提供所述压电致动器9100和该被作用对象之间的预压力，以使得所述压电致动器9100的摩擦驱动部9112能够可摩擦地耦接于该被作用对象，以通过摩擦来驱动该被作用对象沿着预定方向移动，如图27L所示。FIG. 27J illustrates another schematic diagram of the piezoelectric plate structure 9111 of the piezoelectric actuator 9100 according to an embodiment of the present application. As shown in FIG. 27J , in the embodiment of the present application, the actuating system 9110 further includes a friction driving part 9112 fixed to the piezoelectric plate structure 9111 , wherein the friction driving part 9112 is adapted to be frictionally coupled on the acted object to drive the acted object to move along a predetermined direction through friction. In order to enable the friction driving part 9112 to be frictionally coupled to the acted object, as shown in FIG. 27K , during the installation process, the piezoelectric actuator 9100 is usually equipped with a pre-pressure device, the pre-pressure device A pre-pressure between the piezoelectric actuator 9100 and the acted object is provided, so that the friction driving part 9112 of the piezoelectric actuator 9100 can be frictionally coupled to the acted object to friction to drive the acted object to move in a predetermined direction, as shown in Figure 27L.
特别地，在该实施例中，所述摩擦驱动部9112包括至少一接触垫，其可沿着深度方向固定于所述压电板结构9111，也可以沿着高度方向固定于所述压电板结构9111。在该实施例中，所述至少一接触垫可以具有半球形，当然，也可以是其他形状，例如，半圆柱形、台体、长方形等。优选地，所述至少一接触垫由具有较佳摩擦性能和耐久性能的材料制成，例如，可以有金属氧化物材料制成(例如，氧化锆、氧化铝等)。Particularly, in this embodiment, the friction driving part 9112 includes at least one contact pad, which can be fixed to the piezoelectric plate structure 9111 along the depth direction, or can be fixed to the piezoelectric plate along the height direction Structure 9111. In this embodiment, the at least one contact pad may have a hemispherical shape, of course, other shapes, such as a semi-cylindrical shape, a stage body, a rectangle, etc. are also possible. Preferably, the at least one contact pad is made of materials with better friction performance and durability, for example, metal oxide materials (eg, zirconia, alumina, etc.).
值得一提的是，相较于传统的电磁式驱动器，所述压电致动器9100具有体积小、推力大，精度高的优势。量化来看，根据本申请实施例的所述压电致动器9100能够提供的驱动力大小为0.96N至2N，其足以驱动重量大于100mg的部件。It is worth mentioning that, compared with the traditional electromagnetic driver, the piezoelectric actuator 9100 has the advantages of small size, large thrust, and high precision. Quantitatively, the piezoelectric actuator 9100 according to the embodiment of the present application can provide a driving force of 0.96N to 2N, which is sufficient to drive a component with a weight greater than 100 mg.
除了能够提供相对较大的驱动力以外，相较于传统的电磁式马达方案和记忆合金马达方案，所述压电致动器9100还具有其他优势，包括但不限于：尺寸相对较小(具有细长状)，响应精度更佳，结构相对更为简单，驱动控制相对更为简单，产品一致性高，没有电磁干扰，具有相对更大的行程，稳定时间短，重量相对较小等。In addition to being able to provide a relatively large driving force, the piezoelectric actuator 9100 has other advantages compared to traditional electromagnetic motor solutions and memory alloy motor solutions, including but not limited to: relatively small size (with Slender shape), better response accuracy, relatively simpler structure, relatively simpler drive control, high product consistency, no electromagnetic interference, relatively larger stroke, short stabilization time, relatively small weight, etc.
具体来说，所述可变焦摄像模组需要其所配置的驱动器具有驱动行程较长且需要保证较好的对准精度等特征。在现有的音圈马达方案中，为了保证运动线性度需要额外设计导杆或滚珠导轨，同时需要在镜头侧部适配大尺寸的驱动磁铁/线圈等，同时需要设置滚珠、弹片、悬丝等辅助定位装置，为容纳较多的部件、保障结构强度和预留结构间隙，往往导致模组横向尺寸偏 大，且结构设计复杂，模组重量较重。而记忆合金马达方案，受限于记忆合金方案同比例能够提供的行程相对较少，同时存在潜在断线等可靠性风险。Specifically, the variable-focus camera module requires the driver configured with the variable-focus camera module to have a long driving stroke and to ensure better alignment accuracy. In the existing voice coil motor solution, in order to ensure the linearity of motion, additional guide rods or ball guides need to be designed, and large-sized driving magnets/coils need to be adapted to the side of the lens, and balls, shrapnel, and suspension wires need to be installed. Other auxiliary positioning devices, in order to accommodate more components, ensure structural strength and reserve structural gaps, often lead to large lateral dimensions of the module, complex structural design, and heavy module weight. The memory alloy motor solution is limited by the relatively small stroke that the memory alloy solution can provide in the same proportion, and there are reliability risks such as potential disconnection.
而所述压电致动器9100具有相对较为简单的结构，组装结构更加简单，另外其元件大小与所述压电致动器9100的运动行程大小基本无关，因此在光学变焦类产品中所述压电致动器9100可以实现大推力、小尺寸，小重量等优势，同时匹配更大行程或更重器件重量进行设计，设计中的集成度也更高。The piezoelectric actuator 9100 has a relatively simple structure, and the assembly structure is simpler. In addition, the size of its components is basically independent of the movement stroke of the piezoelectric actuator 9100. Therefore, it is described in optical zoom products. The piezoelectric actuator 9100 can achieve the advantages of large thrust, small size, and low weight. At the same time, it can be designed to match the larger stroke or heavier device weight, and the integration in the design is also higher.
进一步地，所述压电致动器9100以摩擦接触的方式推动待推动对象进行微米级运动，其相较于电磁式方案非接触的方式驱动待推动对象需要依靠电磁力抵消重力，摩擦力的方式，具有更大推力，更大位移和更低功耗的优势，同时控制精度更高，可实现高精度连续变焦。而且在存在多个马达机构时，所述压电致动器9100不存在磁铁线圈结构，无磁干扰问题。另外，所述压电致动器9100可依靠部件之间的摩擦力自锁，因此可以降低所述可变焦摄像模组在进行光学变焦时的晃动异响。Further, the piezoelectric actuator 9100 pushes the object to be pushed to perform micron-scale motion in a frictional contact manner. Compared with the electromagnetic scheme, driving the object to be pushed in a non-contact manner needs to rely on electromagnetic force to counteract gravity, and the frictional force It has the advantages of greater thrust, greater displacement and lower power consumption, and at the same time, the control accuracy is higher, and high-precision continuous zoom can be achieved. Moreover, when there are multiple motor mechanisms, the piezoelectric actuator 9100 does not have a magnet coil structure, so there is no problem of magnetic interference. In addition, the piezoelectric actuator 9100 can be self-locked by the friction force between the components, so the abnormal shaking noise of the zoom camera module during optical zooming can be reduced.
在选择以所述压电致动器9100为所述第一驱动元件942和所述第二驱动元件943后，需将所述压电致动器9100以合理的方式布设于所述可变焦摄像模组内，更具体地，在该实施例中，需采用合理的方式将所述压电致动器9100布设于所述驱动壳体941内，以满足所述可变焦摄像模组的光学性能调整要求、结构设计要求和尺寸设计要求。After selecting the piezoelectric actuator 9100 as the first driving element 942 and the second driving element 943, the piezoelectric actuator 9100 needs to be arranged in the variable-focus camera in a reasonable manner In the module, more specifically, in this embodiment, the piezoelectric actuator 9100 needs to be arranged in the drive housing 941 in a reasonable manner to meet the optical performance of the variable-focus camera module Adjustment requirements, structural design requirements and size design requirements.
更具体地，如图24所示，在该实施例中，所述驱动组件940，进一步包括第一预压部件950和第二预压部件960，其中，所述第一驱动元件942通过所述第一预压部件950被摩擦地耦合于所述第一载体944并被配置为在被驱动后以沿着两个方向弯曲振动的方式沿着该光轴设定的方向呈二维轨迹运动，以此通过摩擦来驱动所述第一载体944以带动所述变焦部分922沿着该光轴所设定的方向移动。所述第二驱动元件945通过所述第二预压部分960摩擦地耦合于所述第二载体945并被配置为在被驱动后以沿着两个方向弯曲振动的方式沿着所述光轴所设定的方向呈二维轨迹运动，以此通过摩擦来驱动所述第二载体945以带动所述对焦部分923沿着该光轴所设定的方向移动。More specifically, as shown in FIG. 24, in this embodiment, the driving assembly 940 further includes a first pre-compression part 950 and a second pre-compression part 960, wherein the first driving element 942 passes through the The first pre-compression member 950 is frictionally coupled to the first carrier 944 and is configured to move in a two-dimensional trajectory along the direction set by the optical axis in a manner of bending vibration in two directions after being driven, In this way, the first carrier 944 is driven by friction to drive the zoom portion 922 to move along the direction set by the optical axis. The second drive element 945 is frictionally coupled to the second carrier 945 through the second pre-compression portion 960 and is configured to, after being driven, bend along the optical axis in a manner of bending vibration in both directions The set direction moves in a two-dimensional trajectory, so that the second carrier 945 is driven by friction to drive the focusing portion 923 to move along the set direction of the optical axis.
这里，所述第一驱动元件942摩擦地耦接于所述第一载体944，包括：所述第一驱动元件942与所述第一载体944直接摩擦作用，以及，所述第一 驱动元件942和所述第一载体944之间间接摩擦作用(即，虽然所述第一驱动元件942与所述第一载体944之间不存在直接的摩擦力，但所述第一驱动元件942所产生的摩擦驱动力能作用于所述第一载体944)。相一致地，所述第二驱动元件943摩擦地耦接于所述第二载体945和所述驱动壳体941之间，包括：所述第二驱动元件943与所述第二载体945直接摩擦作用，以及，所述第二驱动元件943和所述第二载体945之间间接摩擦作用(即，虽然所述第二驱动元件943与所述第二载体945之间不存在直接的摩擦力，但所述第二驱动元件944所产生的摩擦驱动力能作用于所述第二载体945)。Here, the first driving element 942 is frictionally coupled to the first carrier 944, including: the first driving element 942 has a direct frictional action with the first carrier 944, and the first driving element 942 Indirect friction with the first carrier 944 (that is, although there is no direct friction between the first driving element 942 and the first carrier 944, the friction generated by the first driving element 942 The friction driving force can act on the first carrier 944). Consistently, the second drive element 943 is frictionally coupled between the second carrier 945 and the drive housing 941 , including: the second drive element 943 rubs directly against the second carrier 945 action, and indirect frictional action between the second drive element 943 and the second carrier 945 (ie, although there is no direct frictional force between the second drive element 943 and the second carrier 945, However, the frictional driving force generated by the second driving element 944 can act on the second carrier 945).
为了提升所述第一驱动元件942和所述第二驱动元件944的摩擦驱动性能，如图24所示，在该实施例中，所述驱动组件940进一步包括第一摩擦作动部9131，其中，所述第一摩擦作动部9131被夹持地设置于所述第一驱动元件942的摩擦驱动部9112和所述第一载体944之间，以通过所述第一摩擦作动部9131和所述第一预压部件950所述第一驱动元件942被摩擦地耦合于所述第一载体944。具体地，如图24所示，在所述第一预压部件950的作用下，所述第一驱动元件942的摩擦驱动部9112抵触于所述第一摩擦作动部9131，并且，在所述摩擦驱动部9112的作用下所述第一摩擦作动部9131抵触于所述第一载体944，通过这样的方式，所述第一驱动元件942被摩擦地耦合于所述第一载体944，以在被驱动后以沿着两个方向弯曲振动的方式沿着该光轴设定的方向呈二维轨迹运动，以此通过摩擦来驱动所述第一载体944以带动所述变焦部分922沿着该光轴所设定的方向移动。In order to improve the friction driving performance of the first driving element 942 and the second driving element 944 , as shown in FIG. 24 , in this embodiment, the driving assembly 940 further includes a first friction actuating part 9131 , wherein , the first friction actuating portion 9131 is sandwiched between the friction driving portion 9112 of the first driving element 942 and the first carrier 944, so as to pass the first friction actuating portion 9131 and The first pre-compression member 950 and the first drive element 942 are frictionally coupled to the first carrier 944 . Specifically, as shown in FIG. 24 , under the action of the first pre-compression member 950 , the friction driving portion 9112 of the first driving element 942 abuts against the first friction actuating portion 9131 , and in all Under the action of the friction driving part 9112, the first friction actuating part 9131 abuts against the first carrier 944, and in this way, the first driving element 942 is frictionally coupled to the first carrier 944, After being driven, the first carrier 944 is driven by friction to drive the zoom portion 922 along the direction set by the optical axis in a two-dimensional trajectory in the manner of bending and vibrating in two directions. move in the direction set by the optical axis.
如图24所示，在该实施例中，所述驱动组件940进一步包括第二摩擦作动部9132，所述第二摩擦作动部9132被夹持地设置于所述第二驱动元件943的摩擦驱动部9112和所述第二载体945之间，以通过所述第二预压部件960和所述第二摩擦作动部9132所述第二驱动元件943被摩擦地耦接于所述第二载体945。具体地，如图24所示，在所述第二预压部件960的作用下，所述第二驱动元件943的摩擦驱动部9112抵触于所述第二摩擦作动部9132，并且，在所述摩擦驱动部9112的作用下所述第二摩擦作动部9132抵触于所述第二载体945，通过这样的方式，所述第二驱动元件943被摩擦地耦合于所述第二载体945，以在被驱动后以沿着两个方向弯曲振动的方式沿着该光轴设定的方向呈二维轨迹运动，以此通过摩擦来驱动所述第二载体945以带动所述变焦部分923沿着该光轴所设定的方向移动。As shown in FIG. 24 , in this embodiment, the driving assembly 940 further includes a second friction actuating portion 9132 , and the second friction actuating portion 9132 is clamped and disposed on the second driving element 943 . between the friction driving part 9112 and the second carrier 945, so that the second driving element 943 is frictionally coupled to the first pressing part 960 and the second friction actuating part 9132 Two vector 945. Specifically, as shown in FIG. 24 , under the action of the second pre-compression member 960 , the friction driving portion 9112 of the second driving element 943 abuts against the second friction actuating portion 9132 , and in all Under the action of the friction driving part 9112, the second friction actuating part 9132 abuts against the second carrier 945, and in this way, the second driving element 943 is frictionally coupled to the second carrier 945, After being driven, the second carrier 945 is driven by friction to drive the zoom portion 923 along the direction set by the optical axis in a two-dimensional trajectory in a manner of bending and vibrating in two directions. move in the direction set by the optical axis.
更具体地，如图24所示，在该实施例中，所述第一摩擦作动部9131具有第一表面和与所述第一表面相对的第二表面，其中，在所述第一预压部件950的作用下，所述第一摩擦作动部9131的第一表面抵触于所述第一载体944的表面，其第二表面抵触于所述摩擦驱动部9112，通过这样的方式，所述第一驱动元件942被摩擦地耦合于所述第一载体944。相应地，所述第二摩擦作动部9132具有第三表面和与所述第三表面相对的第四表面，其中，在所述第二预压部件960的作用下，所述第二摩擦作动部9132的第三表面抵触于所述第二载体945的表面，所述第四表面抵触于所述摩擦驱动部9112，通过这样的方式，所述第二驱动元件943被摩擦地耦合于所述第二载体945。More specifically, as shown in FIG. 24 , in this embodiment, the first friction actuating portion 9131 has a first surface and a second surface opposite to the first surface, wherein in the first pre- Under the action of the pressing member 950, the first surface of the first friction actuating part 9131 is in contact with the surface of the first carrier 944, and the second surface thereof is in contact with the friction driving part 9112. In this way, all the The first drive element 942 is frictionally coupled to the first carrier 944 . Correspondingly, the second friction actuating portion 9132 has a third surface and a fourth surface opposite to the third surface, wherein, under the action of the second pre-compression member 960, the second friction actuating The third surface of the moving part 9132 abuts against the surface of the second carrier 945, and the fourth surface abuts against the friction driving part 9112, in this way, the second driving element 943 is frictionally coupled to the The second carrier 945 is described.
值得一提的是，虽然在如图24所示意的示例中，所述第一摩擦作动部9131和所述第二摩擦作动部9132作为一个单独的部件被分别设置于所述第一驱动元件942和所述第一载体944之间，以及，所述第二驱动元件943和所述第二载体945之间，例如，所述第一摩擦作动部9131被实施为一个单独的部件并被贴附于所述第一载体942的侧表面，或者，所述第二摩擦作动部9132被实施为一个单独的部件被贴附于所述第二载体945的侧表面，再如，所述第一摩擦作动部9131被实施为一层涂覆于所述第一载体942的侧表面的涂层，或者，所述第二摩擦作动部9132被实施为一层涂覆于所述第二载体945的侧表面的涂层。应可以理解，在本申请其他示例中，所述第一摩擦作动部9131也可一体成型于所述第一载体942的外侧壁的表面，即，所述第一摩擦作动部9131与所述第一载体942具有一体式结构。当然，在本申请其他示例中，所述第二摩擦作动部9132也可一体成型于所述第二载体945的外侧壁的表面，即，所述第二摩擦作动部9132与所述第二载体945具有一体式结构。It is worth mentioning that although in the example shown in FIG. 24 , the first friction actuating portion 9131 and the second friction actuating portion 9132 are respectively provided as a separate component in the first drive Between the element 942 and the first carrier 944, and between the second drive element 943 and the second carrier 945, for example, the first friction actuating portion 9131 is implemented as a separate part and is attached to the side surface of the first carrier 942, or, the second friction actuating portion 9132 is implemented as a separate component and is attached to the side surface of the second carrier 945, and for example, the The first friction actuating portion 9131 is implemented as a layer of coating applied to the side surface of the first carrier 942, or the second friction actuating portion 9132 is implemented as a layer coated on the side surface of the first carrier 942. The coating of the side surface of the second carrier 945 . It should be understood that in other examples of the present application, the first friction actuating portion 9131 may also be integrally formed on the surface of the outer side wall of the first carrier 942 , that is, the first friction actuating portion 9131 and the The first carrier 942 has a one-piece structure. Of course, in other examples of the present application, the second friction actuating portion 9132 may also be integrally formed on the surface of the outer side wall of the second carrier 945 , that is, the second friction actuating portion 9132 and the first The two carriers 945 have a one-piece structure.
进一步地，在如图24所示意的示例中，所述第一预压部件950包括第一弹性元件951，所述第一弹性元件951被设置于所述第一驱动元件942的压电板结构9111和所述驱动壳体941之间，以通过所述第一弹性元件951的弹力提供所述第一驱动元件942的摩擦驱动部9112与所述第一摩擦作动部9131之间的预压力且通过所述第一弹性元件951使得所述第一摩擦作动部9131抵触于所述第一载体944的表面。也就是，通过所述第一弹性元件951的弹力使得所述第一驱动元件942被夹持地设置于所述驱动壳体941和所述第一载体944之间，即，使得所述第一驱动元件942的摩擦驱动部9112 抵触于所述第一摩擦作动部9131和所述第一摩擦作动部9131抵触于所述第一载体944的侧表面，通过这样的方式，所述第一驱动元件942被摩擦地耦合于所述第一载体944。Further, in the example shown in FIG. 24 , the first pre-compression member 950 includes a first elastic element 951 , and the first elastic element 951 is arranged on the piezoelectric plate structure of the first driving element 942 . 9111 and the driving housing 941 to provide a pre-pressure between the friction driving part 9112 of the first driving element 942 and the first friction actuating part 9131 through the elastic force of the first elastic element 951 And through the first elastic element 951 , the first friction actuating portion 9131 abuts against the surface of the first carrier 944 . That is, through the elastic force of the first elastic element 951, the first driving element 942 is clamped and disposed between the driving housing 941 and the first carrier 944, that is, the first driving element 942 is clamped The friction driving portion 9112 of the driving element 942 abuts against the first friction actuating portion 9131 and the first friction actuating portion 9131 abuts against the side surface of the first carrier 944, in this way, the first friction actuating portion 9131 The drive element 942 is frictionally coupled to the first carrier 944 .
在本申请一个具体示例中，所述第一弹性元件951被实施为具有弹性的黏着剂，也就是，所述第一弹性元件951被实施为固化后具有弹性的胶水。相应地，在安装过程中，可在所述驱动壳体941的内侧壁的表面和所述第一驱动元件942的压电板结构9111之间施加一层厚度为10um至50um的黏着剂，以在所述黏着剂固化成型后形成设置于所述第一驱动元件942的压电板结构9111和所述驱动壳体941之间的所述第一弹性元件951。也就是，所述第一弹性元件951在提供预压力的同时，还能够使得所述第一驱动元件942被固定于所述驱动壳体941的内侧壁的表面。优选地，所述第一弹性元件951具有相对较高的平整度，即，在施加所述黏着剂时，尽可能地保证所施加的黏着剂具有相对较高的平整度且均匀度，从而使得所述第一驱动元件942能够平整地被固定于所述驱动壳体941的内侧壁的表面，进而提升所述第一驱动元件942驱动的稳定性。In a specific example of the present application, the first elastic element 951 is implemented as an elastic adhesive, that is, the first elastic element 951 is implemented as a glue with elasticity after curing. Correspondingly, during the installation process, a layer of adhesive with a thickness of 10um to 50um can be applied between the surface of the inner side wall of the drive housing 941 and the piezoelectric plate structure 9111 of the first drive element 942 to After the adhesive is cured and formed, the first elastic element 951 disposed between the piezoelectric plate structure 9111 of the first driving element 942 and the driving housing 941 is formed. That is, while the first elastic element 951 provides the pre-pressure, the first driving element 942 can also be fixed on the surface of the inner side wall of the driving housing 941 . Preferably, the first elastic element 951 has relatively high flatness, that is, when the adhesive is applied, it is ensured that the applied adhesive has relatively high flatness and uniformity as much as possible, so that the The first driving element 942 can be flatly fixed to the surface of the inner side wall of the driving housing 941 , thereby improving the driving stability of the first driving element 942 .
特别地，在如图24所示意的示例中，所述第二预压部件960包括第二弹性元件961，所述第二弹性元件961被设置于所述第二驱动元件943的压电板结构9111和所述驱动壳体941之间，以通过所述第二弹性元件961的弹力提供所述第二驱动元件943的摩擦驱动部9112与所述第二摩擦作动部9132之间的预压力且通过所述第二弹性元件961使得所述第二摩擦作动部9132抵触于所述第二载体945的表面。也就是，通过所述第二弹性元件961的弹力使得所述第二驱动元件943被夹持地设置于所述驱动壳体941和所述第二载体945之间，即，使得所述第二驱动元件943的摩擦驱动部9112抵触于所述第二摩擦作动部9132和所述第二摩擦作动部9132抵触于所述第二载体945的表面，通过这样的方式，所述第二驱动元件被摩擦地耦合于所述第二载体。In particular, in the example shown in FIG. 24 , the second pre-compression member 960 includes a second elastic element 961 , and the second elastic element 961 is arranged on the piezoelectric plate structure of the second driving element 943 . 9111 and the driving housing 941 to provide a pre-pressure between the friction driving part 9112 of the second driving element 943 and the second friction actuating part 9132 through the elastic force of the second elastic element 961 And through the second elastic element 961 , the second friction actuating portion 9132 abuts against the surface of the second carrier 945 . That is, the second driving element 943 is clamped and disposed between the driving housing 941 and the second carrier 945 by the elastic force of the second elastic element 961, that is, the second The friction driving part 9112 of the driving element 943 abuts against the second friction actuating part 9132 and the second friction actuating part 9132 abuts against the surface of the second carrier 945. In this way, the second driving The element is frictionally coupled to the second carrier.
在本申请一个具体示例中，所述第二弹性元件961被实施为具有弹性的黏着剂，也就是，所述第二弹性元件961被实施为固化后具有弹性的胶水。相应地，在安装过程中，可在所述驱动壳体941的内侧壁的表面和所述第二驱动元件943的压电板结构9111之间施加一层厚度为10um至50um的黏着剂，以在所述黏着剂固化成型后形成设置于所述第二驱动元件943的压电板 结构9111和所述驱动壳体941之间的所述第二弹性元件961。也就是，所述第二弹性元件961在提供预压力的同时，还能够使得所述第二驱动元件943被固定于所述驱动壳体941的内侧壁的表面。优选地，所述第二弹性元件961具有相对较高的平整度，即，在施加所述黏着剂时，尽可能地保证所施加的黏着剂具有相对较高的平整度且均匀度，从而使得所述第二驱动元件943能够平整地被固定于所述驱动壳体941的内侧壁的表面，进而提升所述第二驱动元件943驱动的稳定性。In a specific example of the present application, the second elastic element 961 is implemented as an elastic adhesive, that is, the second elastic element 961 is implemented as a glue with elasticity after curing. Correspondingly, during the installation process, a layer of adhesive with a thickness of 10um to 50um can be applied between the surface of the inner side wall of the drive housing 941 and the piezoelectric plate structure 9111 of the second drive element 943 to After the adhesive is cured and formed, the second elastic element 961 disposed between the piezoelectric plate structure 9111 of the second driving element 943 and the driving housing 941 is formed. That is, while the second elastic element 961 provides pre-pressure, the second driving element 943 can also be fixed on the surface of the inner side wall of the driving housing 941 . Preferably, the second elastic element 961 has a relatively high flatness, that is, when the adhesive is applied, it is ensured that the applied adhesive has a relatively high flatness and uniformity as much as possible, so that the The second driving element 943 can be flatly fixed on the surface of the inner side wall of the driving housing 941 , thereby improving the driving stability of the second driving element 943 .
值得一提的是，在本申请其他实施例中，所述第一弹性元件951和所述第二弹性元件961也可以被实施为不具有黏性的弹性元件，例如，材料自身特征本身存在弹性的橡胶，或者，由于形变而产生弹性的弹簧、板簧等，对此，同样并不为本申请所局限。It is worth mentioning that in other embodiments of the present application, the first elastic element 951 and the second elastic element 961 can also be implemented as elastic elements without viscosity, for example, the material itself has elasticity rubber, or springs, leaf springs, etc. that generate elasticity due to deformation, which are also not limited by this application.
进一步地，如图24和图26所示，在该实施例中，选择将所述第一驱动元件942和所述第二驱动元件943同时设置于所述变焦透镜组920的第一侧，也就是，选择将所述第一驱动元件942和所述第二驱动元件943设置于所述变焦透镜组920的同一侧，这样，所述第一驱动元件942和所述第二驱动元件943的在所述驱动壳体941内的布置紧凑度更高，所占据的所述驱动壳体941的纵向空间更小。这里，所述驱动壳体941的纵向空间指的是所述驱动壳体941在其长度方向上所占据的空间，相应地，所述驱动壳体941的横向空间指的是所述驱动壳体941在其宽度方向上所占据的空间，所述驱动壳体941的高度空间指的是所述驱动壳体941在其高度方向上所占据的空间。Further, as shown in FIG. 24 and FIG. 26 , in this embodiment, the first driving element 942 and the second driving element 943 are selected to be disposed on the first side of the zoom lens group 920 at the same time. That is, the first driving element 942 and the second driving element 943 are selected to be disposed on the same side of the zoom lens group 920, so that the The arrangement in the drive housing 941 is more compact, and the longitudinal space of the drive housing 941 occupied is smaller. Here, the longitudinal space of the driving housing 941 refers to the space occupied by the driving housing 941 in the length direction thereof, and correspondingly, the lateral space of the driving housing 941 refers to the driving housing The space occupied by 941 in its width direction, and the height space of the drive housing 941 refers to the space occupied by the drive housing 941 in its height direction.
并且，当所述第一驱动元件942和所述第二驱动元件943被设置于所述变焦透镜组920的同一侧时，在通过所述第一驱动元件942驱动所述变焦部分922和通过所述第二驱动元件943驱动所述对焦部分923时，所述变焦部分922和所述对焦部分923之间的相对位置关系误差(尤其是相对倾斜关系)能够得以降低，以提高所述对焦部分923和所述变焦部分922之间的一致性，减小所述可变焦摄像模组因所述变焦部分922和所述对焦部分923的倾斜而导致的成像质量下降的可能性。Also, when the first driving element 942 and the second driving element 943 are disposed on the same side of the zoom lens group 920, the zooming portion 922 is driven by the first driving element 942 and the zooming portion 922 is driven by the zoom lens group 920. When the second driving element 943 drives the focusing portion 923, the relative positional relationship error (especially the relative inclination relationship) between the zoom portion 922 and the focusing portion 923 can be reduced to improve the focusing portion 923 The consistency between the zoom portion 922 and the zoom portion 922 reduces the possibility that the image quality of the variable zoom camera module is degraded due to the inclination of the zoom portion 922 and the focus portion 923 .
优选地，当所述第一驱动元件942和所述第二驱动元件943位于所述变焦透镜组920的同一侧时，所述第一驱动元件942和所述第二驱动元件943在所述变焦透镜组920的第一侧的高度方向上对齐地设置，也就是，所述第一驱动元件942和所述第二驱动元件943具有相同的安装高度，这样，所述 对焦部分923和所述变焦部分922在所述驱动壳体941所设定的高度方向上的一致性相对更高，也就是，在通过所述第一驱动元件942驱动所述变焦部分922和通过所述第二驱动元件943驱动所述对焦部分923后，所述变焦部分922和所述对焦部分923在所述驱动壳体941所设定的高度方向上的一致性相对更高，以确保所述可变焦摄像模组的成像质量。Preferably, when the first driving element 942 and the second driving element 943 are located on the same side of the zoom lens group 920, the first driving element 942 and the second driving element 943 are at the same side of the zoom lens group 920. The first side of the lens group 920 is aligned in the height direction, that is, the first driving element 942 and the second driving element 943 have the same mounting height, so that the focusing portion 923 and the zooming The uniformity of the portion 922 in the height direction set by the drive housing 941 is relatively higher, that is, when the zoom portion 922 is driven by the first drive element 942 and the zoom portion 922 is driven by the second drive element 943 After the focusing part 923 is driven, the consistency of the zooming part 922 and the focusing part 923 in the height direction set by the driving housing 941 is relatively higher, so as to ensure the image quality.
如前所述，在本申请实施例中，优选地，所述变焦透镜组920的所述对焦部分923和所述变焦部分922相邻地设置。在这样的位置关系下，所述第一驱动元件942和所述第二驱动元件943也可以相邻地设置，从而缩减所述第一驱动元件942和所述第二驱动元件943的两者整体所占据的所述驱动壳体941的纵向空间大小，利于所述可变焦摄像模组的小型化的发展趋势。As mentioned above, in the embodiment of the present application, preferably, the focusing portion 923 and the zooming portion 922 of the zoom lens group 920 are disposed adjacent to each other. Under such a positional relationship, the first driving element 942 and the second driving element 943 can also be arranged adjacent to each other, thereby reducing the overall size of the first driving element 942 and the second driving element 943 The size of the longitudinal space occupied by the driving housing 941 is favorable to the development trend of miniaturization of the variable-focus camera module.
为了使得所述第一驱动元件942和所述第二驱动元件943能够更为平稳地驱动所述第一载体944和所述第二载体945，并且，保持所述第一载体944和所述第二载体945之间的相对位置关系具有相对较高的精度，如图24和925所示，在本申请实施例中，所述驱动组件940，进一步包括导引结构946，所述导引结构946被配置为引导所述对焦部分923和所述变焦部分922沿着该光轴移动。In order to enable the first driving element 942 and the second driving element 943 to drive the first carrier 944 and the second carrier 945 more smoothly, and keep the first carrier 944 and the second carrier 944 The relative positional relationship between the two carriers 945 has relatively high precision. As shown in FIGS. 24 and 925 , in the embodiment of the present application, the driving assembly 940 further includes a guide structure 946 , and the guide structure 946 is configured to guide the focusing portion 923 and the zooming portion 922 to move along the optical axis.
考虑到所述可变焦摄像模组的结构设计，优选地，在本申请实施例中，将所述导引结构946设置于所述变焦透镜组920的与所述第一侧相对的第二侧。也就是，在本申请实施例中，优选地，所述第一驱动元件942和所述第二驱动元件943(作为第一部分)和所述导引结构946(作为第二部分)分别被设置于所述变焦透镜组920的相对的二侧，通过这样的方式，使得所述可变焦摄像模组的内部空间被充分地应用，以利于所述可变焦摄像模组的轻型化和薄型化。Considering the structural design of the variable-focus camera module, preferably, in the embodiment of the present application, the guide structure 946 is disposed on the second side of the zoom lens group 920 opposite to the first side . That is, in the embodiment of the present application, preferably, the first driving element 942 and the second driving element 943 (as the first part) and the guide structure 946 (as the second part) are respectively disposed in In this way, the two opposite sides of the zoom lens group 920 can fully utilize the internal space of the zoom camera module, so as to facilitate the lightening and thinning of the zoom camera module.
如图24和图26所示，在该实施例中，所述第一驱动元件942和所述第二驱动元件943共同一个导引结构946，也就是，所述第一载体944和所述第二载体945共同一个引导结构，通过这样的方式，有利于稳定地保持所述第一载体944和所述第二载体945之间的相对位置关系，以利于稳定地保持所述变焦透镜组920的所述对焦部分923和所述变焦部分922之间的相对位置关系，以提高所述变焦透镜组920的解像能力。As shown in FIGS. 24 and 26, in this embodiment, the first driving element 942 and the second driving element 943 share a guiding structure 946, that is, the first carrier 944 and the first The two carriers 945 share a guiding structure. In this way, the relative positional relationship between the first carrier 944 and the second carrier 945 can be stably maintained, and the zoom lens group 920 can be stably maintained. The relative positional relationship between the focusing part 923 and the zooming part 922 is to improve the resolution capability of the zoom lens group 920 .
更具体地，如图24和图26所示，在该示例中，所述导引结构946，包括：相间隔地形成于所述驱动壳体941的第一支撑部9461和第二支撑部9462， 以及，架设于所述第一支撑部9461和第二支撑部9462之间且贯穿所述第一载体944和所述第二载体945的至少一导杆9463，所述导杆9463与该光轴平行，以使得所述第一载体944和所述第二载体945能够被导引沿着平行于该光轴的所述导杆9463移动。More specifically, as shown in FIG. 24 and FIG. 26 , in this example, the guide structure 946 includes: a first support portion 9461 and a second support portion 9462 formed on the drive housing 941 at intervals. , and at least one guide rod 9463 built between the first support portion 9461 and the second support portion 9462 and passing through the first carrier 944 and the second carrier 945, the guide rod 9463 and the light The axes are parallel so that the first carrier 944 and the second carrier 945 can be guided to move along the guide rod 9463 parallel to the optical axis.
相应地，在该示例中，所述第一支撑部9461和所述第二支撑部9462的作用在于架设所述导杆9463。例如，在该示例的一个具体的实施方案中，可在所述驱动壳体941的底表面上安装所述第一支撑部9461和所述第二支撑部9462(例如，所述第一支撑部9461和所述第二支撑部9462可被实施为支撑架)，当然，所述第一支撑部9461和所述第二支撑部9462也可以一体成型于所述驱动壳体941的底表面上，对此，并不为本申请所局限。当然，在该示例的其他具体的实施方案中，所述第一支撑部9461和所述第二支撑部9462也可以被实施为所述驱动壳体941的侧壁，也就是，所述驱动壳体941的相对的两个侧壁形成所述第一支撑部9461和所述第二支撑部9462。Correspondingly, in this example, the functions of the first support portion 9461 and the second support portion 9462 are to span the guide rod 9463 . For example, in a specific embodiment of this example, the first support portion 9461 and the second support portion 9462 (eg, the first support portion 9462 ) may be mounted on the bottom surface of the drive housing 941 9461 and the second support part 9462 can be implemented as a support frame), of course, the first support part 9461 and the second support part 9462 can also be integrally formed on the bottom surface of the drive housing 941, This is not limited by this application. Of course, in other specific implementations of this example, the first support portion 9461 and the second support portion 9462 may also be implemented as side walls of the drive housing 941 , that is, the drive housing The opposite two side walls of the body 941 form the first support portion 9461 and the second support portion 9462 .
相应地，为了允许所述导杆9463穿过，可在所述第一支撑部9461和所述第二支撑部9462上设置导杆槽9464，在所述第一载体944和所述第二载体945内形成贯穿于其两侧表面的导杆通道9465，这样，所述导杆9463能够以安装于所述导杆槽9464的方式被架设于所述第一支撑部9461和所述第二支撑部9462，并同时穿过所述第一载体944和所述第二载体945的导杆通道9465。进一步地，在该具体示例中，可选择在所述第一载体944和所述第二载体945的导杆通道9465内设置润滑介质，以减小摩擦。Correspondingly, in order to allow the guide rod 9463 to pass through, guide rod grooves 9464 can be provided on the first support part 9461 and the second support part 9462, and the first carrier 944 and the second carrier A guide rod channel 9465 is formed in the 945 through its two side surfaces, so that the guide rod 9463 can be mounted on the first support portion 9461 and the second support in a manner of being installed in the guide rod groove 9464. part 9462 and pass through the guide rod passages 9465 of the first carrier 944 and the second carrier 945 at the same time. Further, in this specific example, a lubricating medium may be optionally provided in the guide rod channels 9465 of the first carrier 944 and the second carrier 945 to reduce friction.
值得一提的是，优选地，在本申请实施例中，所述导杆9463与所述第一驱动元件942的摩擦驱动部9112和/或所述第二驱动元件943的摩擦驱动部9112齐平，这样可以减小所述对焦部和所述变焦部之间产生倾斜的风险，以确保所述可变焦摄像模组的成像质量。It is worth mentioning that, preferably, in the embodiment of the present application, the guide rod 9463 is aligned with the friction driving part 9112 of the first driving element 942 and/or the friction driving part 9112 of the second driving element 943 In this way, the risk of inclination between the focusing part and the zooming part can be reduced, so as to ensure the imaging quality of the variable-focus camera module.
图28图示了根据本申请实施例的所述可变焦摄像模组的导引结构的一个变形实施的示意图。如图28所示，在该示例中，所述驱动组件940，进一步包括设置于所述第一载体944和所述驱动壳体941之间的第一导引机构947和设置于所述第二载体945和所述驱动壳体941之间的第二导引机构948，其中，所述第一导引机构947被配置为引导所述变焦部分922沿着该光轴移动，所述第二导引机构948被配置为引导所述对焦部分923沿着该光轴移动。FIG. 28 is a schematic diagram illustrating a variant implementation of the guiding structure of the variable-focus camera module according to an embodiment of the present application. As shown in FIG. 28 , in this example, the drive assembly 940 further includes a first guide mechanism 947 disposed between the first carrier 944 and the drive housing 941 , and a first guide mechanism 947 disposed between the second carrier 944 and the drive housing 941 . A second guide mechanism 948 between the carrier 945 and the drive housing 941, wherein the first guide mechanism 947 is configured to guide the zoom portion 922 to move along the optical axis, the second guide The guide mechanism 948 is configured to guide the focus portion 923 to move along the optical axis.
具体地，如图28所示，所述第一导引机构947，包括设置于所述第一载 体944和所述驱动壳体941之间的至少一滚珠9401，以及，设置于所述第一载体944和所述驱动壳体941之间的用于容纳所述至少一滚珠9401的收容槽9402。也就是，所述第一导引机构947为滚珠9401导引结构946。所述第二导引机构948，包括设置于所述第二载体945和所述驱动壳体941之间的至少一滚珠9401，以及，设置于所述第二载体945和所述驱动壳体941之间的用于容纳所述至少一滚珠9401的收容槽9402。也就是，在该示例中，所述第二导引机构948同样为滚珠9401导引结构946。Specifically, as shown in FIG. 28 , the first guide mechanism 947 includes at least one ball 9401 disposed between the first carrier 944 and the drive housing 941 , and is disposed in the first A receiving groove 9402 between the carrier 944 and the driving housing 941 for receiving the at least one ball 9401 . That is, the first guide mechanism 947 is the ball 9401 guide structure 946 . The second guide mechanism 948 includes at least one ball 9401 arranged between the second carrier 945 and the drive housing 941 , and at least one ball 9401 arranged between the second carrier 945 and the drive housing 941 A receiving groove 9402 for receiving the at least one ball 9401 therebetween. That is, in this example, the second guide mechanism 948 is also the ball 9401 guide structure 946 .
在一个具体实施中，如图28所示，可在所述第一载体944的侧表面以及在所述驱动壳体941的内侧壁的表面形成所述收容槽9402，使所述至少一滚珠9401在所述收容槽9402内滑动或者滚动，所述收容槽9402的长度方向上与该光轴方向相一致。在一个具体实施中，如图30所示，可在所述第二载体945的侧表面以及所述驱动壳体941的内侧壁的表面形成所述收容槽9402，使所述至少一滚珠9401在所述收容槽9402内滑动或者滚动。In a specific implementation, as shown in FIG. 28 , the receiving groove 9402 may be formed on the side surface of the first carrier 944 and the surface of the inner side wall of the driving housing 941 , so that the at least one ball 9401 Slide or roll in the receiving groove 9402, and the length direction of the receiving groove 9402 is consistent with the optical axis direction. In a specific implementation, as shown in FIG. 30 , the receiving groove 9402 may be formed on the side surface of the second carrier 945 and the surface of the inner side wall of the driving housing 941 , so that the at least one ball 9401 is The receiving groove 9402 slides or rolls inside.
优选地，所述第一导引机构947与所述第二导引机构948的配置相同，并且，所述第一导引机构947的收容槽9402与所述第二导引机构948的收容槽9402处于同一直线上且相互连接，从而使得所述第一载体944和所述第二载体945之间的倾斜度可以被降低。Preferably, the configurations of the first guide mechanism 947 and the second guide mechanism 948 are the same, and the accommodating grooves 9402 of the first guide mechanism 947 and the accommodating grooves of the second guide mechanism 948 9402 are on the same line and connected to each other, so that the inclination between the first carrier 944 and the second carrier 945 can be reduced.
图29图示了根据本申请实施例的所述可变焦摄像模组的导引结构的另一个变形实施的示意图。如图29所示，在该示例中，所述第一导引机构947，包括：设置于所述第一载体944和所述驱动壳体941之间的至少一滑块9403，以及，设置于所述驱动壳体941与所述第一载体944之间的适于所述至少一滑块9403滑动的滑槽9404。也就是，在该示例中，所述第一导引机构947为滑块和滑轨结构。所述第二导引机构948，包括：设置于所述第二载体945和所述驱动壳体941之间的至少一滑块9403，以及，设置于所述驱动壳体941与所述第二载体945之间的适于所述至少一滑块9403滑动的滑槽9404。也就是，在该示例中，所述第二导引机构948同样为滑块和滑槽结构。FIG. 29 is a schematic diagram illustrating another variant implementation of the guide structure of the variable-focus camera module according to an embodiment of the present application. As shown in FIG. 29 , in this example, the first guide mechanism 947 includes: at least one sliding block 9403 disposed between the first carrier 944 and the drive housing 941 , and disposed on the A sliding groove 9404 between the driving housing 941 and the first carrier 944 is suitable for the sliding of the at least one slider 9403 . That is, in this example, the first guide mechanism 947 is a slider and a slide rail structure. The second guide mechanism 948 includes: at least one sliding block 9403 disposed between the second carrier 945 and the drive housing 941 , and at least one slider 9403 disposed between the drive housing 941 and the second The sliding grooves 9404 between the carriers 945 are suitable for the sliding of the at least one slider 9403 . That is, in this example, the second guide mechanism 948 is also a slider and a chute structure.
在该示例的一个具体实施方案中，所述滑块9403突出地形成于所述第一载体944的侧表面，所述滑槽9404凹陷地形成所述驱动壳体941的内侧壁的表面的对应位置。在该具体方案中，所述滑块9403突出地形成于所述第二载体945的侧表面，所述滑槽9404凹陷地形成于所述驱动壳体941的内侧壁的表面的对应位置。In a specific embodiment of this example, the slider 9403 is formed protrudingly on the side surface of the first carrier 944 , and the sliding groove 9404 is recessed to form a corresponding surface of the inner side wall of the drive housing 941 . Location. In this specific solution, the sliding block 9403 is protrudingly formed on the side surface of the second carrier 945 , and the sliding groove 9404 is recessedly formed at a corresponding position on the surface of the inner side wall of the driving housing 941 .
优选地，所述第一载体944和所述驱动壳体941之间的滑块9403和滑槽9404设置与所述第二载体945和所述驱动壳体941之间滑块9403和滑槽9404设置相同，特别是滑块9403的尺寸以及滑槽9404的尺寸。进一步地，设置在所述驱动壳体941上的对应于所述第一载体944和所述第二载体945的两处滑槽9404处于同一直线上并可以相互连接，从而使得所述第一载体944和所述第二载体945的倾斜度可被进一步降低。Preferably, the slider 9403 and the chute 9404 between the first carrier 944 and the drive housing 941 are provided with the slider 9403 and the chute 9404 between the second carrier 945 and the drive housing 941 The settings are the same, in particular the dimensions of the slider 9403 and the dimensions of the chute 9404. Further, two sliding grooves 9404 corresponding to the first carrier 944 and the second carrier 945 provided on the drive housing 941 are on the same straight line and can be connected to each other, so that the first carrier The inclination of 944 and the second carrier 945 can be further reduced.
图30图示了根据本申请实施例的所述可变焦摄像模组的另一个变形实施的示意图，其中，在该变形实施例中，所述第一驱动元件942和所述第二驱动元件943的设置位置发生变化。具体地，在该变形实施例中，所述第一驱动元件942被设置于所述第一载体944的底表面和所述驱动壳体941的底表面之间，所述第二驱动元件943被设置于所述第二载体945的底表面和所述驱动壳体941的底表面之间。也就是，在该变形实施例中，所述第一载体944的底表面和所述驱动壳体941的底表面之间存在可用间隙以适于布置所述第一驱动元件942，所述第二载体945的底表面和所述驱动壳体941的底表面之间存在可用间隙以适于布置所述第二驱动元件943。30 is a schematic diagram illustrating another variant implementation of the variable-focus camera module according to an embodiment of the present application, wherein, in this variant embodiment, the first driving element 942 and the second driving element 943 The setting position of . Specifically, in this modified embodiment, the first driving element 942 is disposed between the bottom surface of the first carrier 944 and the bottom surface of the driving housing 941 , and the second driving element 943 is It is disposed between the bottom surface of the second carrier 945 and the bottom surface of the driving housing 941 . That is, in this variant embodiment, there is an available gap between the bottom surface of the first carrier 944 and the bottom surface of the drive housing 941 to be suitable for arranging the first drive element 942, the second There is an available gap between the bottom surface of the carrier 945 and the bottom surface of the drive housing 941 to accommodate the placement of the second drive element 943 .
并且，在该变形实施例中，所述第一预压部件950和所述第二预压部960的结构配置也做出调整。具体地，如图30所示，在该变形实施例中，第一预压部件950包括设置于所述第一载体944的底表面的第一磁吸元件952和设置于所述驱动壳体941的底表面且对应于所述第一磁吸元件952的第二磁吸元件953，以通过所述第一磁吸元件952和所述第二磁吸元件953之间的磁作用力提供所述第一驱动元件942的摩擦驱动部9112和所述第一摩擦作动部9131之间的预压力，以使得所述第一驱动元件942摩擦地耦接于所述第一载体944。In addition, in this modified embodiment, the structural arrangement of the first pre-compression member 950 and the second pre-compression portion 960 is also adjusted. Specifically, as shown in FIG. 30 , in this modified embodiment, the first pre-pressing member 950 includes a first magnetic element 952 disposed on the bottom surface of the first carrier 944 and a first magnetic element 952 disposed on the driving housing 941 The bottom surface of the first magnetic element 952 corresponds to the second magnetic element 953 of the first magnetic element 952 to provide the magnetic force between the first magnetic element 952 and the second magnetic element The pre-pressure between the friction driving portion 9112 of the first driving element 942 and the first friction actuating portion 9131 , so that the first driving element 942 is frictionally coupled to the first carrier 944 .
在该变形实施中，所述第一磁吸元件952和所述第二磁吸元件953是指能够相互吸引的磁吸组件，例如，所述第一磁吸元件952可被实施为磁体，所述第二磁吸元件953可被实施为磁性部件，例如，由铁、镍、钴等金属制成的材料；再如，所述第一磁吸元件952可被实施为磁体，所述第二磁吸元件953也可被实施为磁体。In this variant implementation, the first magnetic element 952 and the second magnetic element 953 refer to magnetic components that can attract each other. For example, the first magnetic element 952 can be implemented as a magnet, so The second magnetic attraction element 953 can be implemented as a magnetic component, for example, a material made of iron, nickel, cobalt and other metals; for another example, the first magnetic attraction element 952 can be implemented as a magnet, and the second magnetic attraction element 952 can be implemented as a magnet. The magnetic attraction element 953 may also be implemented as a magnet.
相应地，在该实施例中，所述第二预压部件960包括设置于所述第二载体945的第三磁吸元件962和设置于所述驱动壳体941且对应于所述第三磁吸元件962的第四磁吸元件963，以通过所述第三磁吸元件962和所述第三 磁吸元件962之间的磁作用力提供所述第二驱动元件943的摩擦驱动部9112和所述第二摩擦作动部9132之间的预压力，以及，迫使所述第二摩擦作动部9132抵触于所述第二载体945的底表面。Correspondingly, in this embodiment, the second pre-compression member 960 includes a third magnetic attraction element 962 disposed on the second carrier 945 and a third magnetic element 962 disposed on the driving housing 941 and corresponding to the third magnetic element The fourth magnetic attracting element 963 of the attracting element 962 is used to provide the friction driving part 9112 and The pre-pressure between the second friction actuating parts 9132 and the second friction actuating part 9132 are forced against the bottom surface of the second carrier 945 .
在该变形实施中，所述第三磁吸元件962和所述第四磁吸元件963是指能够相互吸引的磁吸组件，例如，所述第三磁吸元件962可被实施为磁体，所述第四磁吸元件963可被实施为磁性部件，例如，由铁、镍、钴等金属制成的材料；再如，所述第三磁吸元件962可被实施为磁体，所述第四磁吸元件963也可被实施为磁体。In this variant implementation, the third magnetic element 962 and the fourth magnetic element 963 refer to magnetic components capable of attracting each other. For example, the third magnetic element 962 can be implemented as a magnet, so The fourth magnetic attraction element 963 may be implemented as a magnetic component, for example, a material made of iron, nickel, cobalt and other metals; for another example, the third magnetic attraction element 962 may be implemented as a magnet, and the fourth magnetic attraction element 962 may be implemented as a magnet The magnetic attraction element 963 may also be implemented as a magnet.
图31图示了根据本申请实施例的所述可变焦摄像模组的一个变形实施的示意图，其中，在该变形实施例中，所述第一载体944具有凹陷地形成于其侧表面且横向延伸的第一凹槽9441，所述第二载体945具有凹陷地形成于其侧表面且横向延伸的第二凹槽9451，其中，所述第一摩擦作动部9131被设置于所述第一凹槽内9441以使得所述第一摩擦作动部9131被更稳定地设置于所述第一驱动元件942和所述第一载体944之间，以及，所述第二摩擦作动部9132被设置于所述第二凹槽9451内以使得所述第二摩擦作动部9132被更稳定地设置于所述第二驱动元件943和所述第二载体945之间。31 is a schematic diagram illustrating a variant implementation of the variable-focus camera module according to the embodiment of the present application, wherein, in the variant embodiment, the first carrier 944 has a side surface formed concavely and a lateral An extended first groove 9441, the second carrier 945 has a second groove 9451 concavely formed on a side surface thereof and extending laterally, wherein the first friction actuating portion 9131 is provided in the first groove 9441 so that the first friction actuating portion 9131 is more stably disposed between the first driving element 942 and the first carrier 944, and the second friction actuating portion 9132 is Being arranged in the second groove 9451 enables the second friction actuating portion 9132 to be more stably arranged between the second driving element 943 and the second carrier 945 .
应注意到，在该实施例中，所述第一凹槽9441的深度与所述第一摩擦作动部9131的厚度尺寸几近相等，所述第二凹槽9451的深度与所述第二摩擦作动部9132的厚度尺寸几近相等。当然，在本申请其他示例中，所述第一凹槽9441的深度也可以大于所述第一摩擦作动部9131的厚度尺寸，以及，所述第二凹槽9451的深度也可以大于所述第二摩擦作动部9132的厚度尺寸，这样，所述第一凹槽9441形成用于引导所述第一驱动元件942的引导槽，所述第二凹槽9451形成用于引导所述第二驱动元件943移动的引导槽。It should be noted that, in this embodiment, the depth of the first groove 9441 is approximately equal to the thickness of the first friction actuating portion 9131, and the depth of the second groove 9451 is the same as that of the second groove 9451. The thickness dimension of the friction actuating portion 9132 is approximately equal. Of course, in other examples of the present application, the depth of the first groove 9441 may also be greater than the thickness dimension of the first friction actuating portion 9131, and the depth of the second groove 9451 may also be greater than the The thickness dimension of the second friction actuating portion 9132, such that the first groove 9441 forms a guide groove for guiding the first driving element 942, and the second groove 9451 forms a guide groove for guiding the second A guide groove for the movement of the drive element 943 .
也就是，当所述第一凹槽9441的深度也可以大于所述第一摩擦作动部9131的厚度尺寸，所述第一凹槽9441不仅形成用于收容所述第一摩擦作动部9131的收容槽，还形成用于引导所述第一驱动元件942的引导槽；当所述第二凹槽9451的深度大于所述第二摩擦作动部9132的厚度尺寸时，所述第二凹槽9451不仅形成用于收容所述第二摩擦作动部9132的收容槽，还形成用于引导所述第二驱动元件943的引导槽。That is, when the depth of the first groove 9441 can also be greater than the thickness dimension of the first friction actuating portion 9131, the first groove 9441 is not only formed to accommodate the first friction actuating portion 9131 A guide groove for guiding the first driving element 942 is also formed; when the depth of the second groove 9451 is greater than the thickness dimension of the second friction actuating portion 9132, the second groove 9451 The groove 9451 not only forms an accommodating groove for accommodating the second friction actuating portion 9132 , but also forms a guide groove for guiding the second driving element 943 .
图32图示了根据本申请实施例的所述可变焦摄像模组的又一个变形实施的示意图。如图32所示，在该变形实施例中，所述第一载体944具有凹 陷地形成于其侧表面且横向延伸的第一凹槽9441，所述第二载体945具有凹陷地形成于其侧表面且横向延伸的第二凹槽9451，其中，所述第一摩擦作动部9131被设置于所述第一凹槽内9441以使得所述第一摩擦作动部9131被更稳定地设置于所述第一驱动元件942和所述第一载体944之间，以及，所述第二摩擦作动部9132被设置于所述第二凹槽9451内以使得所述第二摩擦作动部9132被更稳定地设置于所述第二驱动元件943和所述第二载体945之间。FIG. 32 illustrates a schematic diagram of yet another variant implementation of the variable-focus camera module according to an embodiment of the present application. As shown in FIG. 32 , in this modified embodiment, the first carrier 944 has a first groove 9441 concavely formed on its side surface and extending laterally, and the second carrier 945 has a concavely formed side surface thereof. A second groove 9451 extending laterally on the surface, wherein the first friction actuating portion 9131 is disposed in the first groove 9441 so that the first friction actuating portion 9131 is more stably disposed in the Between the first driving element 942 and the first carrier 944, and the second friction actuating portion 9132 is disposed in the second groove 9451 so that the second friction actuating portion 9132 is more stably disposed between the second driving element 943 and the second carrier 945 .
特别地，在该变形实施例中，所述第一驱动元件942的摩擦驱动部9120嵌合于所述第一凹槽9441内，所述第二驱动元件943的摩擦驱动部9112嵌合于所述第二凹槽内9451，也就是，在该实施例中，所述第一凹槽9441不仅形成用于收容所述第一摩擦作动部9131的收容槽，还形成用于引导所述第一驱动元件942的引导槽；所述第二凹槽9451不仅形成用于收容所述第二摩擦作动部9132的收容槽，还形成用于引导所述第二驱动元件943的引导槽。In particular, in this modified embodiment, the friction driving portion 9120 of the first driving element 942 is fitted into the first groove 9441, and the friction driving portion 9112 of the second driving element 943 is fitted in the first groove 9441. In the second groove 9451, that is, in this embodiment, the first groove 9441 not only forms a receiving groove for accommodating the first friction actuating part 9131, but also forms a receiving groove for guiding the first friction actuating part 9131. A guide groove for the driving element 942 ; the second groove 9451 not only forms an accommodating groove for accommodating the second friction actuating portion 9132 , but also forms a guiding groove for guiding the second driving element 943 .
并且，在该变形实施例中，所述第一凹槽9441具有减缩的口径，和/或，所述第二凹槽9451具有减缩的口径。也就是，在该变形实施例中，所述第一凹槽9441的口径尺寸沿着所述第一载体944的宽度方向，向远离所述第一驱动元件942的方向逐渐减小，以及，所述第二凹槽945的口径尺寸沿着所述第二载体945的宽度方向，向远离所述第二驱动元件943的方向逐渐减小。Moreover, in this modified embodiment, the first groove 9441 has a reduced diameter, and/or the second groove 9451 has a reduced diameter. That is, in this modified embodiment, the aperture size of the first groove 9441 is gradually reduced along the width direction of the first carrier 944 toward the direction away from the first driving element 942 , and, therefore, The diameter of the second groove 945 gradually decreases along the width direction of the second carrier 945 toward the direction away from the second driving element 943 .
应可以理解，在所述第一驱动元件942和所述第二驱动元件943工作一段时间后，所述第一驱动元件942和所述第二驱动元件943的摩擦驱动部9112可能会发生磨损。相应地，在所述第一预压部件950和所述第二预压部件960的作用下，所述第一驱动元件942的摩擦驱动部9112会往所述第一凹槽9441更内处延伸，所述第二驱动元件943的摩擦驱动部9112会往所述第二凹槽9451更内处延伸，这样，由于所述第一凹槽9441具有减缩的口径，和所述第二凹槽9451具有减缩的口径，所述第一驱动元件942的摩擦驱动部9112能够重新抵触于设置于所述第一凹槽9441内的所述第一摩擦作动部9131，所述第二驱动元件943的摩擦驱动部9112能够重新抵触于设置于所述第二凹槽9451内的所述第二摩擦作动部9132，通过这样的方式，能延长所述第一驱动元件942和所述第二驱动元件943的使用寿命，即，延长了所 述可变焦摄像模组的使用寿命。It should be understood that after the first driving element 942 and the second driving element 943 work for a period of time, the friction driving parts 9112 of the first driving element 942 and the second driving element 943 may wear. Correspondingly, under the action of the first pre-compression member 950 and the second pre-compression member 960 , the friction driving portion 9112 of the first driving element 942 will extend further into the first groove 9441 , the friction driving portion 9112 of the second driving element 943 will extend further inward of the second groove 9451, so that since the first groove 9441 has a reduced diameter, and the second groove 9451 With a reduced diameter, the friction driving part 9112 of the first driving element 942 can re-contact the first friction driving part 9131 disposed in the first groove 9441, and the friction driving part 9112 of the second driving element 943 The friction driving part 9112 can be in contact with the second friction driving part 9132 disposed in the second groove 9451 again, and in this way, the first driving element 942 and the second driving element can be extended The service life of 943, that is, the service life of the variable-focus camera module is prolonged.
综上，基于本申请实施例的所述可变焦摄像模组被阐明，其中，所述可变焦摄像模组采用压电致动器9100作为驱动器以不仅能够提供足够大的驱动力，而且，能够提供精度更高和行程更长的驱动性能，以满足所述可变焦摄像模组的变焦需求。To sum up, the variable-focus camera module based on the embodiments of the present application has been clarified, wherein the variable-focus camera module adopts the piezoelectric actuator 9100 as a driver so as not only to provide a sufficiently large driving force, but also to The driving performance with higher precision and longer stroke is provided to meet the zoom requirements of the variable-focus camera module.
进一步地，在本申请实施例中，所述压电致动器9100具有相对较小的尺寸，以更好地适配于摄像模组轻型化和薄型化的发展趋势。并且，所述可变焦摄像模组采用合理的布设方案将所述压电致动器9100布设于所述可变焦摄像模组中，以满足可变焦摄像模组的结构和尺寸要求。Further, in the embodiment of the present application, the piezoelectric actuator 9100 has a relatively small size, so as to better adapt to the development trend of lightening and thinning of the camera module. In addition, the variable-focus camera module adopts a reasonable layout scheme to arrange the piezoelectric actuator 9100 in the variable-focus camera module, so as to meet the structure and size requirements of the variable-focus camera module.
本领域的技术人员应理解，上述描述及附图中所示的本发明的实施例只作为举例而并不限制本发明。本发明的目的已经完整并有效地实现。本发明的功能及结构原理已在实施例中展示和说明，在没有背离所述原理下，本发明的实施方式可以有任何变形或修改。It should be understood by those skilled in the art that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may be modified or modified in any way without departing from the principles.

Claims (84)

  1. 一种可变焦摄像模组，其特征在于，包括：A variable-focus camera module, comprising:
    变焦透镜组，包括：固定部分、变焦部分和对焦部分，其中，所述变焦透镜组设有一光轴；A zoom lens group, comprising: a fixed part, a zoom part and a focus part, wherein the zoom lens group is provided with an optical axis;
    被保持于所述变焦透镜组的通光路径上的感光组件；以及a photosensitive assembly held on the light-passing path of the zoom lens group; and
    驱动组件，包括：驱动壳体、第一驱动元件、第二驱动元件、第一载体、第二载体、第一预压部件和第二预压部件，其中，所述第一驱动元件、所述第二驱动元件、所述第一载体和所述第二载体位于所述驱动壳体内，所述变焦部分被安装于所述第一载体，所述对焦部分被安装于所述第二载体；其中，所述第一驱动元件和所述第二驱动元件被实施为压电致动器，所述第一驱动元件通过所述第一预压部件被夹持地设置于所述第一载体和所述驱动壳体之间，并被配置为驱动所述第一载体以带动所述变焦部分沿着该光轴所设定的方向移动；所述第二驱动元件通过所述第二预压部分被夹持地设置于所述第二载体和所述驱动壳体之间，并被配置为驱动所述第二载体以带动所述对焦部分沿着该光轴所设定的方向移动。A drive assembly, comprising: a drive housing, a first drive element, a second drive element, a first carrier, a second carrier, a first pre-pressing part and a second pre-pressing part, wherein the first driving element, the A second drive element, the first carrier, and the second carrier are located within the drive housing, the zoom portion is mounted to the first carrier, and the focus portion is mounted to the second carrier; wherein , the first drive element and the second drive element are implemented as piezoelectric actuators, the first drive element is clamped to the first carrier and the between the driving housings, and is configured to drive the first carrier to drive the zooming part to move along the direction set by the optical axis; the second driving element is forced by the second preloading part It is sandwiched between the second carrier and the driving housing, and is configured to drive the second carrier to drive the focusing portion to move along the direction set by the optical axis.
  2. 根据权利要求1所述的可变焦摄像模组，其中，所述压电致动器，包括：压电主动部和可传动地连接于所述压电主动部的摩擦驱动部，其中，在所述压电致动器被导通后，所述摩擦驱动部在所述压电主动部作用下被配置为提供用于驱动所述第一载体或所述第二载体的驱动力。The variable-focus camera module according to claim 1, wherein the piezoelectric actuator comprises: a piezoelectric active part and a friction driving part drivably connected to the piezoelectric active part, wherein in the After the piezoelectric actuator is turned on, the friction driving part is configured to provide a driving force for driving the first carrier or the second carrier under the action of the piezoelectric active part.
  3. 根据权利要求2所述的可变焦摄像模组，其中，所述压电主动部具有多组相互交替设置的第一极化区域和第二极化区域，其中，在所述压电致动器被导通后，相互交替设置的多组所述第一极化区域和所述第二极化区域发生不同方向的形变以带动所述摩擦驱动部以行波的方式沿着预设方向运动，以提供用于驱动第一载体或所述第二载体的驱动力。The variable-focus camera module according to claim 2, wherein the piezoelectric active part has a plurality of groups of first polarization regions and second polarization regions alternately arranged with each other, wherein, in the piezoelectric actuator After being turned on, the multiple groups of the first polarized regions and the second polarized regions that are arranged alternately are deformed in different directions to drive the friction driving part to move along a preset direction in a traveling wave manner, to provide a driving force for driving the first carrier or the second carrier.
  4. 根据权利要求3所述的可变焦摄像模组，其中，每组所述第一极化区域和所述第二极化区域具有相反的极化方向。The variable-focus camera module according to claim 3, wherein each group of the first polarization region and the second polarization region has opposite polarization directions.
  5. 根据权利要求3所述的可变焦摄像模组，其中，每组所述第一极化区域和所述第二极化区域具有相同的极化方向。The variable-focus camera module according to claim 3, wherein each group of the first polarization region and the second polarization region has the same polarization direction.
  6. 根据权利要求3所述的可变焦摄像模组，其中，所述摩擦驱动部包括多个相互间隔设置的摩擦驱动元件，每个所述摩擦驱动元件的第一端耦接于所述压电主动部。The variable-focus camera module according to claim 3, wherein the friction driving part comprises a plurality of friction driving elements spaced apart from each other, and the first end of each friction driving element is coupled to the piezoelectric active department.
  7. 根据权利要求6所述的可变焦摄像模组，其中，所述多个摩擦驱动元件位于所述压电主动部的中部区域。The variable-focus camera module according to claim 6, wherein the plurality of friction driving elements are located in a middle area of the piezoelectric active part.
  8. 根据权利要求6所述的可变焦摄像模组，其中，所述压电致动器进一步包括：叠置于所述压电主动部的摩擦连接层，每个所述摩擦驱动元件以其第一端固定于所述摩擦连接层的方式被耦接于所述压电主动部。The variable-focus camera module according to claim 6, wherein the piezoelectric actuator further comprises: a frictional connection layer stacked on the piezoelectric active part, and each of the frictional driving elements has its first The ends are coupled to the piezoelectric active portion in a manner of being fixed to the frictional connection layer.
  9. 根据权利要求6所述的可变焦摄像模组，其中，所述多个摩擦驱动元件的与所述第一端相对的第二端的多个端面处于同一平面。The variable-focus camera module according to claim 6, wherein a plurality of end surfaces of the second ends of the plurality of friction driving elements opposite to the first ends are in the same plane.
  10. 根据权利要求9所述的可变焦摄像模组，其中，所述驱动组件进一步包括第一摩擦作动部和第二摩擦作动部，所述第一摩擦作动部被设置于所述第一驱动元件和所述第一载体之间，所述第二摩擦作动部被设置于所述第二驱动元件和所述第二载体之间。The zoom camera module according to claim 9, wherein the driving assembly further comprises a first friction actuating part and a second friction actuating part, the first friction actuating part is disposed on the first friction actuating part Between the driving element and the first carrier, the second friction actuating portion is provided between the second driving element and the second carrier.
  11. 根据权利要求10所述的可变焦摄像模组，其中，所述第一摩擦作动部具有第一表面和与所述第一表面相对的第二表面，所述第一表面抵触于所述第一载体的侧表面，所述第二表面抵触于所述多个摩擦驱动元件中至少一个所述摩擦驱动元件的第二端的端面；所述第二摩擦作动部具有第三表面和与所述第三表面相对的第四表面，所述第三表面抵触于所述第二载体的侧表面，所述第四表面抵触于所述多个摩擦驱动元件中至少一个所述摩擦驱动元件的第二端的端面。The zoom camera module according to claim 10, wherein the first friction actuating part has a first surface and a second surface opposite to the first surface, the first surface abuts against the first surface a side surface of a carrier, the second surface abutting against the end surface of the second end of at least one of the plurality of friction driving elements; the second friction actuating part has a third surface and the A fourth surface opposite the third surface, the third surface abutting a side surface of the second carrier, the fourth surface abutting a second surface of at least one of the frictional drive elements of the plurality of frictional drive elements end face.
  12. 根据权利要求11所述的可变焦摄像模组，其中，所述第一摩擦作 动部一体成型于所述第一载体的侧表面，和/或所述第二摩擦作动部一体成型于所述第二载体的侧表面。The zoom camera module according to claim 11, wherein the first friction actuating part is integrally formed on the side surface of the first carrier, and/or the second friction actuating part is integrally formed on the the side surface of the second carrier.
  13. 根据权利要求11所述的可变焦摄像模组，其中，所述压电致动器的长度尺寸小于等于10mm、其宽度尺寸小于等于1mm、以及，其高度尺寸小于等于1mm。The variable-focus camera module according to claim 11, wherein the piezoelectric actuator has a length dimension of 10 mm or less, a width dimension of 1 mm or less, and a height dimension of 1 mm or less.
  14. 根据权利要求10所述的可变焦摄像模组，其中，所述第一预压部件包括第一弹性元件，所述第一弹性元件被设置于所述第一驱动元件的压电主动部和所述驱动壳体之间，以通过所述第一弹性元件的弹力迫使所述第一驱动元件被夹持地设置于所述驱动壳体和所述第一载体之间；所述第二预压部件包括第二弹性元件，所述第二弹性元件被设置于所述第二驱动元件的压电主动部和所述驱动壳体之间，以通过所述第二弹性元件的弹力迫使所述第二驱动元件被夹持地设置于所述驱动壳体和所述第一载体之间。The variable-focus camera module according to claim 10, wherein the first pre-compression member comprises a first elastic element, and the first elastic element is arranged on the piezoelectric active part of the first driving element and the first elastic element. between the drive housings, so as to force the first drive element to be sandwiched between the drive housing and the first carrier by the elastic force of the first elastic element; the second preload The component includes a second elastic element, the second elastic element is arranged between the piezoelectric active part of the second driving element and the driving housing to force the first elastic element by the elastic force of the second elastic element Two drive elements are sandwiched between the drive housing and the first carrier.
  15. 根据权利要求14所述的可变焦摄像模组，其中，所述第一弹性元件和所述第二弹性元件被实施为具有弹性的黏着剂。The variable-focus camera module of claim 14 , wherein the first elastic element and the second elastic element are implemented as elastic adhesives.
  16. 根据权利要求15所述的可变焦摄像模组，其中，所述第一弹性元件和所述第二弹性元件的厚度尺寸为10um至50um之间。The variable-focus camera module according to claim 15, wherein the thickness of the first elastic element and the second elastic element is between 10um and 50um.
  17. 根据权利要求10所述的可变焦摄像模组，其中，第一预压部件包括设置于所述第一载体的第一磁吸元件和设置于所述驱动壳体且对应于所述第一磁吸元件的第二磁吸元件，以通过所述第一磁吸元件和所述第二磁吸元件之间的磁作用力迫使所述第一驱动元件被夹持地设置于所述驱动壳体和所述第一载体之间；所述第二预压部件包括设置于所述第二载体的第三磁吸元件和设置于所述驱动壳体且对应于所述第三磁吸元件的第四磁吸元件，以通过所述第三磁吸元件和所述第三磁吸元件之间的磁作用力迫使所述第二驱动元件被夹持地设置于所述驱动壳体和所述第一载体之间。The variable-focus camera module according to claim 10, wherein the first pre-pressing member comprises a first magnetic attraction element disposed on the first carrier and a first magnetic element disposed on the drive housing and corresponding to the first magnetic element. the second magnetic attraction element of the attraction element, so as to force the first driving element to be clamped and arranged on the drive housing through the magnetic force between the first magnetic attraction element and the second magnetic attraction element and the first carrier; the second pre-compression component includes a third magnetic attraction element disposed on the second carrier and a third magnetic attraction element disposed in the drive housing and corresponding to the third magnetic attraction element Four magnetic attraction elements, so as to force the second driving element to be clamped and disposed on the drive housing and the third magnetic attraction element through the magnetic force between the third magnetic attraction element and the third magnetic attraction element between a carrier.
  18. 根据权利要求10所述的可变焦摄像模组，其中，所述第一驱动元 件和所述第二驱动元件被同时设置于所述变焦透镜组的第一侧。The variable-focus camera module according to claim 10, wherein the first driving element and the second driving element are simultaneously disposed on the first side of the zoom lens group.
  19. 根据权利要求18所述的可变焦摄像模组，其中，所述第一驱动元件和所述第二驱动元件在所述变焦透镜组的第一侧相互对齐地设置。The variable-focus camera module of claim 18 , wherein the first driving element and the second driving element are arranged in alignment with each other on the first side of the zoom lens group.
  20. 根据权利要求19所述的可变焦摄像模组，其中，所述第一驱动元件被设置于所述第一载体的侧表面和所述驱动壳体的侧表面之间，所述第二驱动元件被设置于所述第二载体的侧表面和所述驱动壳体的侧表面之间。The variable-focus camera module of claim 19, wherein the first driving element is disposed between a side surface of the first carrier and a side surface of the driving housing, and the second driving element is disposed between the side surface of the second carrier and the side surface of the drive housing.
  21. 根据权利要求19所述的可变焦摄像模组，其中，所述第一驱动元件被设置于所述第一载体的底表面和所述驱动壳体的底表面之间，所述第二驱动元件被设置于所述第二载体的底表面和所述驱动壳体的底表面之间。The variable-focus camera module of claim 19, wherein the first driving element is disposed between a bottom surface of the first carrier and a bottom surface of the driving housing, and the second driving element is disposed between the bottom surface of the second carrier and the bottom surface of the drive housing.
  22. 根据权利要求19所述的可变焦摄像模组，其中，所述第一载体具有凹陷地形成于其侧表面且横向延伸的第一收容腔，所述第二载体具有凹陷地形成于其侧表面且横向延伸的第二收容腔，其中，所述第一驱动元件被设置于所述第一收容腔内，所述第二驱动元件被设置于所述第二收容腔内。The zoom camera module according to claim 19 , wherein the first carrier has a first receiving cavity formed concavely on a side surface thereof and extending laterally, and the second carrier has a side surface formed concavely on the side surface thereof. and a second accommodating cavity extending laterally, wherein the first driving element is arranged in the first accommodating cavity, and the second driving element is arranged in the second accommodating cavity.
  23. 根据权利要求22所述的可变焦摄像模组，其中，所述第一收容腔的深度尺寸与所述第一驱动元件的高度尺寸相等，和/或，所述第二收容腔的深度尺寸与所述第二驱动元件的高度尺寸相等。The zoom camera module according to claim 22, wherein the depth dimension of the first receiving cavity is equal to the height dimension of the first driving element, and/or the depth dimension of the second receiving cavity is the same as the height dimension of the first driving element. The height dimensions of the second driving elements are equal.
  24. 根据权利要求19所述的可变焦摄像模组，其中，所述第一载体具有凹陷地形成于其底表面且横向延伸的第三收容腔，所述第二载体具有凹陷地形成于其底表面且横向延伸的第四收容腔，其中，所述第一驱动元件被设置于所述第三收容腔内，所述第二驱动元件被设置于所述第四收容腔内。The zoom camera module according to claim 19 , wherein the first carrier has a third receiving cavity formed concavely on its bottom surface and extending laterally, and the second carrier has a concavely formed on its bottom surface and a fourth accommodating cavity extending laterally, wherein the first driving element is arranged in the third accommodating cavity, and the second driving element is arranged in the fourth accommodating cavity.
  25. 根据权利要求24所述的可变焦摄像模组，其中，所述第三收容腔的深度尺寸与所述第一驱动元件的高度尺寸相等，和/或，所述第四收容腔的深度尺寸与所述第二驱动元件的高度尺寸相等。The zoom camera module according to claim 24, wherein the depth dimension of the third receiving cavity is equal to the height dimension of the first driving element, and/or the depth dimension of the fourth receiving cavity is equal to the height dimension of the first driving element. The height dimensions of the second driving elements are equal.
  26. 根据权利要求19所述的可变焦摄像模组，其中，所述驱动组件，进一步包括设置于所述变焦透镜组的与所述第一侧相对的第二侧的导引结构，所述导引结构被配置为引导所述对焦部分和所述变焦部分沿着该光轴移动。The variable-focus camera module according to claim 19, wherein the driving assembly further comprises a guide structure disposed on a second side of the zoom lens group opposite to the first side, the guide Structures are configured to guide the focus portion and the zoom portion to move along the optical axis.
  27. 根据权利要求26所述的可变焦摄像模组，其中，所述导引结构，包括：相间隔地形成于所述驱动壳体的第一支撑部和第二支撑部，以及，架设于所述第一支撑部和第二支撑部之间且贯穿所述第一载体和所述第二载体的至少一导杆，所述导杆与该光轴平行，以使得所述第一载体和所述第二载体能够被导引沿着平行于该光轴的所述导杆移动。The zoom camera module according to claim 26 , wherein the guide structure comprises: a first support part and a second support part formed on the drive housing at intervals, and a first support part and a second support part formed on the drive casing; At least one guide rod between the first support part and the second support part and passing through the first carrier and the second carrier, the guide rod is parallel to the optical axis, so that the first carrier and the second carrier are parallel to the optical axis. The second carrier can be guided to move along said guide rods parallel to the optical axis.
  28. 根据权利要求26所述的可变焦摄像模组，其中，所述导引机构进一步包括设置于所述第一载体和所述驱动壳体之间的第一导引机构和设置于所述第二载体和所述驱动壳体之间的第二导引机构，其中，所述第一导引机构被配置为引导所述变焦部分沿着该光轴移动，所述第二导引机构被配置为引导所述对焦部分沿着该光轴移动。The zoom camera module of claim 26 , wherein the guide mechanism further comprises a first guide mechanism disposed between the first carrier and the drive housing, and a first guide mechanism disposed between the second carrier and the drive housing. a second guide mechanism between the carrier and the drive housing, wherein the first guide mechanism is configured to guide the zoom portion to move along the optical axis, and the second guide mechanism is configured to The focusing portion is guided to move along the optical axis.
  29. 根据权利要求28所述的可变焦摄像模组，其中，所述第一导引机构，包括设置于所述第一载体和所述驱动壳体之间的至少一滚珠，以及，设置于所述第一载体和所述驱动壳体之间的用于容纳所述至少一滚珠的收容槽；所述第二导引机构，包括设置于所述第二载体和所述驱动壳体之间的至少一滚珠，以及，设置于所述第二载体和所述驱动壳体之间的用于容纳所述至少一滚珠的收容槽。The zoom camera module according to claim 28, wherein the first guide mechanism comprises at least one ball disposed between the first carrier and the drive housing, and is disposed in the a receiving groove for accommodating the at least one ball between the first carrier and the drive housing; the second guide mechanism includes at least one A ball, and an accommodating groove disposed between the second carrier and the drive housing for accommodating the at least one ball.
  30. 根据权利要求28所述的可变焦摄像模组，其中，所述第一导引机构，包括：设置于所述第一载体和所述驱动壳体之间的至少一滑块，以及，设置于所述驱动壳体与所述第一载体之间的适于所述至少一滑块滑动的滑轨；所述第二导引机构，包括：设置于所述第二载体和所述驱动壳体之间的至少一滑块，以及，设置于所述驱动壳体与所述第二载体之间的适于所述至少一滑块滑动的滑轨。The zoom camera module according to claim 28, wherein the first guide mechanism comprises: at least one sliding block disposed between the first carrier and the driving casing, and disposed in the A slide rail suitable for sliding of the at least one slider between the drive housing and the first carrier; the second guide mechanism includes: provided on the second carrier and the drive housing At least one slider between the two, and a slide rail disposed between the drive housing and the second carrier suitable for the at least one slider to slide.
  31. 根据权利要求1所述的可变焦摄像模组，进一步包括：用于将成像光线转折至所述变焦透镜组的光转折元件。The zoom camera module according to claim 1, further comprising: a light turning element for turning the imaging light to the zoom lens group.
  32. 根据权利要求1所述的可变焦摄像模组，其中，所述对焦部分和所述变焦部分相邻地设置。The variable-focus camera module of claim 1, wherein the focusing portion and the zooming portion are disposed adjacent to each other.
  33. 一种可变焦摄像模组，其特征在于，包括：A variable-focus camera module, comprising:
    变焦透镜组，包括：固定部分、变焦部分和对焦部分，其中，所述变焦透镜组设有一光轴；A zoom lens group, comprising: a fixed part, a zoom part and a focus part, wherein the zoom lens group is provided with an optical axis;
    被保持于所述变焦透镜组的通光路径上的感光组件；以及a photosensitive assembly held on the light-passing path of the zoom lens group; and
    驱动组件，包括：驱动壳体、第一驱动元件、第二驱动元件、第一载体、第二载体、第一预压部件和第二预压部件，其中，所述第一驱动元件、所述第二驱动元件、所述第一载体和所述第二载体位于所述驱动壳体内，所述变焦部分被安装于所述第一载体，所述对焦部分被安装于所述第二载体；A drive assembly, comprising: a drive housing, a first drive element, a second drive element, a first carrier, a second carrier, a first pre-pressing part and a second pre-pressing part, wherein the first driving element, the A second driving element, the first carrier and the second carrier are located in the driving housing, the zoom portion is mounted on the first carrier, and the focusing portion is mounted on the second carrier;
    其中，所述第一驱动元件和所述第二驱动元件被实施为压电致动器，所述第一驱动元件通过所述第一预压部件被摩擦地耦合于所述第一载体并被配置为在被驱动后以沿着两个方向弯曲振动的方式沿着该光轴设定的方向呈二维轨迹运动，以此通过摩擦来驱动所述第一载体以带动所述变焦部分沿着该光轴所设定的方向移动；所述第二驱动元件通过所述第二预压部分摩擦地耦合于所述第二载体并被配置为在被驱动后以沿着两个方向弯曲振动的方式沿着所述光轴所设定的方向呈二维轨迹运动，以此通过摩擦来驱动所述第二载体以带动所述对焦部分沿着该光轴所设定的方向移动。In this case, the first drive element and the second drive element are embodied as piezoelectric actuators, the first drive element being frictionally coupled to the first carrier via the first prestressing element and held by the It is configured to move along a two-dimensional trajectory along the direction set by the optical axis in a manner of bending and vibrating in two directions after being driven, so as to drive the first carrier through friction to drive the zoom portion along the the optical axis moves in the direction set; the second drive element is frictionally coupled to the second carrier through the second pre-compression portion and is configured to flexibly vibrate in both directions after being driven In this way, the second carrier is driven to move along the direction set by the optical axis in a two-dimensional trajectory, so as to drive the focusing part to move along the direction set by the optical axis.
  34. 根据权利要求33所述的可变焦摄像模组，其中，所述压电致动器，包括：致动系统和驱动电路系统，其中，所述致动系统在所述驱动电路系统的控制下以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动。The zoom camera module according to claim 33, wherein the piezoelectric actuator comprises: an actuating system and a driving circuit system, wherein the actuating system is controlled by the driving circuit system to It moves in a two-dimensional trajectory along a preset direction by means of bending vibration in two directions.
  35. 根据权利要求34所述的可变焦摄像模组，其中，所述致动系统，包括：压电板结构和固定于所述压电板结构的摩擦驱动部，所述摩擦驱动部摩擦地耦接于所述第一载体或所述第二载体。The variable-focus camera module according to claim 34, wherein the actuating system comprises: a piezoelectric plate structure and a friction driving part fixed to the piezoelectric plate structure, the friction driving part being frictionally coupled on the first carrier or the second carrier.
  36. 根据权利要求35所述的可变焦摄像模组，其中，所述压电板结构具有沿着其深度方向延伸的第一侧表面和沿着其高度方向延伸的且与所述第一侧表面相邻的第二侧表面，其中，所述压电板结构沿着其深度方向具有第一共振频率且沿着其高度方向具有第二共振频率，其中，所述第二共振频率大于所述第一共振频率。The zoom camera module according to claim 35, wherein the piezoelectric plate structure has a first side surface extending along its depth direction and a first side surface extending along its height direction and opposite to the first side surface an adjacent second side surface, wherein the piezoelectric plate structure has a first resonance frequency along its depth direction and a second resonance frequency along its height direction, wherein the second resonance frequency is greater than the first resonance frequency Resonance frequency.
  37. 根据权利要求36所述的可变焦摄像模组，其中，所述压电板结构包括形成于所述第二侧表面的第一压电区域、第二压电区域和第三压电区域，以及，形成于所述第一侧表面的第四压电区域，其中，所述第二压电区域位于所述第一压电区域和所述第三压电区域区间，且所述第四压电区域与所述第二压电区域相邻的；其中，所述压电板结构进一步包括电连接于所述第一压电区域的第一电极对、电连接于所述第二压电区域的第二电极对、电连接于所述第三压电区域的第三电极对和电连接于所述第四电连接区域的第四电极对。The zoom camera module of claim 36, wherein the piezoelectric plate structure includes a first piezoelectric region, a second piezoelectric region and a third piezoelectric region formed on the second side surface, and , a fourth piezoelectric region formed on the first side surface, wherein the second piezoelectric region is located between the first piezoelectric region and the third piezoelectric region, and the fourth piezoelectric region area adjacent to the second piezoelectric area; wherein the piezoelectric plate structure further includes a first electrode pair electrically connected to the first piezoelectric area, a pair of electrodes electrically connected to the second piezoelectric area A second electrode pair, a third electrode pair electrically connected to the third piezoelectric region, and a fourth electrode pair electrically connected to the fourth electrical connection region.
  38. 根据权利要求37所述的可变焦摄像模组，其中，所述驱动电路系统包括第一驱动电路和第二驱动电路，所述第一驱动电路电连接于所述第一电极对和所述第三电极对，所述第二驱动电路电连接于所述第二电极对和所述第四电极对；其中，所述第一驱动电路和所述第二驱动电路输出的电路振动信号振动频率等于所述第一共振频率或所述第二共振频率。The variable-focus camera module according to claim 37, wherein the driving circuit system comprises a first driving circuit and a second driving circuit, and the first driving circuit is electrically connected to the first electrode pair and the second driving circuit. Three electrode pairs, the second drive circuit is electrically connected to the second electrode pair and the fourth electrode pair; wherein, the vibration frequency of the circuit vibration signal output by the first drive circuit and the second drive circuit is equal to the first resonant frequency or the second resonant frequency.
  39. 根据权利要求38所述的可变焦摄像模组，其中，当所述第一驱动电路输出的电路振动信号的振动频率为所述第一共振频率时，所述压电板结构在其高度方向发生共振且在其深度方向发生部分共振，以使得所述压电板结构以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动；其中，当所述第二驱动电路所输入的电路振动信号的振动频率为所述第二共振频率时，所述压电板结构在其深度方向发生共振且在其高度方向发生部分共振，以使得所述压电板结构以沿着两个方向弯曲振动的方式沿着预设方向呈二维轨迹运动。The variable-focus camera module according to claim 38 , wherein when the vibration frequency of the circuit vibration signal output by the first driving circuit is the first resonance frequency, the piezoelectric plate structure occurs in the height direction of the piezoelectric plate structure. resonance and partial resonance occurs in its depth direction, so that the piezoelectric plate structure moves along a two-dimensional trajectory along a preset direction in a manner of bending vibration in two directions; wherein, when the input from the second drive circuit is When the vibration frequency of the circuit vibration signal is the second resonant frequency, the piezoelectric plate structure resonates in its depth direction and partially resonates in its height direction, so that the piezoelectric plate structure can resonate along the two directions. The directional bending vibration is a two-dimensional trajectory along a preset direction.
  40. 根据权利要求39所述的可变焦摄像模组，其中，所述驱动组件进 一步包括第一摩擦作动部和第二摩擦作动部，所述第一摩擦作动部被夹持地设置于所述第一驱动元件的摩擦驱动部和所述第一载体之间，以通过所述第一摩擦作动部和所述第一预压部件所述第一驱动元件被摩擦地耦合于所述第一载体；所述第二摩擦作动部被夹持地设置于所述第二驱动元件的摩擦驱动部和所述第二载体之间，以通过所述第二预压部件和所述第二摩擦作动部所述第二驱动元件被摩擦地耦接于所述第二载体。The zoom camera module according to claim 39, wherein the driving assembly further comprises a first friction actuating part and a second friction actuating part, the first friction actuating part is clamped and disposed on the between the friction driving portion of the first driving element and the first carrier, so that the first driving element is frictionally coupled to the first driving element through the first friction actuating portion and the first preloading member a carrier; the second friction actuating portion is sandwiched between the friction driving portion of the second driving element and the second carrier to pass the second pre-compression member and the second The friction actuation portion The second drive element is frictionally coupled to the second carrier.
  41. 根据权利要求40所述的可变焦摄像模组，其中，所述第一预压部件包括第一弹性元件，所述第一弹性元件被设置于所述第一驱动元件的压电板结构和所述驱动壳体之间，以通过所述第一弹性元件的弹力迫使所述第一驱动元件的摩擦驱动部抵向所述第一摩擦作动部通过这样的方式所述第一驱动元件摩擦地耦接于所述第一载体；所述第二预压元件包括第二弹性元件，所述第二弹性元件被设置于所述第二驱动元件的压电板结构和所述驱动壳体之间，以通过所述第二弹性元件的弹力迫使所述第二驱动元件的摩擦驱动部抵向所述第二摩擦作动部通过这样的方式所述第二驱动元件摩擦地耦接于所述第二载体。The variable-focus camera module according to claim 40, wherein the first pre-compression member comprises a first elastic element, and the first elastic element is arranged on the piezoelectric plate structure of the first driving element and the piezoelectric plate structure of the first driving element. Between the drive housings, the first drive element frictionally forces the friction drive portion of the first drive element against the first friction actuation portion by the elastic force of the first elastic element. coupled to the first carrier; the second preloading element includes a second elastic element, the second elastic element is disposed between the piezoelectric plate structure of the second driving element and the driving housing , in such a way that the second driving element is frictionally coupled to the first Two carriers.
  42. 根据权利要求41所述的可变焦摄像模组，其中，所述第一弹性元件和所述第二弹性元件被实施为具有弹性的黏着剂。The zoom camera module of claim 41 , wherein the first elastic element and the second elastic element are implemented as elastic adhesives.
  43. 根据权利要求42所述的可变焦摄像模组，其中，所述第一弹性元件和所述第二弹性元件的厚度尺寸为10um至50um之间。The zoom camera module according to claim 42, wherein the thickness of the first elastic element and the second elastic element is between 10um and 50um.
  44. 根据权利要求40所述的可变焦摄像模组，其中，所述第一载体包括凹陷地形成于其表面的第一凹槽，所述第一摩擦作动部被设置于所述第一凹槽内，其中，所述第一凹槽形成用于引导所述第一驱动元件的所述摩擦驱动部移动的引导槽。The zoom camera module according to claim 40 , wherein the first carrier comprises a first groove concavely formed on the surface thereof, and the first friction actuating part is disposed in the first groove , wherein the first groove forms a guide groove for guiding the movement of the friction drive portion of the first drive element.
  45. 根据权利要求44所述的可变焦摄像模组，其中，所述第二载体包括凹陷地形成于其表面的第二凹槽，所述第二摩擦作动部被设置于所述第二凹槽内，其中，所述第二凹槽形成用于引导所述第二驱动元件的所述摩擦驱 动部移动的引导槽。The zoom camera module according to claim 44, wherein the second carrier comprises a second groove formed concavely on the surface thereof, and the second friction actuating part is disposed in the second groove , wherein the second groove forms a guide groove for guiding the movement of the friction drive portion of the second drive element.
  46. 根据权利要求45所述的可变焦摄像模组，其中，所述第一凹槽具有减缩的口径，和/或，所述第二凹槽具有减缩的口径。The zoom camera module according to claim 45, wherein the first groove has a reduced diameter, and/or the second groove has a reduced diameter.
  47. 根据权利要求40所述的可变焦摄像模组，其中，所述第一预压部件包括设置于所述第一载体的第一磁吸元件和设置于所述驱动壳体且对应于所述第一磁吸元件的第二磁吸元件，以通过所述第一磁吸元件和所述第二磁吸元件之间的磁作用力迫使所述第一驱动元件的摩擦驱动部抵向所述第一摩擦作动部，通过这样的方式所述第一驱动元件摩擦地耦接于所述第一载体；所述第二预压部件包括设置于所述第二载体的第三磁吸元件和设置于所述驱动壳体且对应于所述第三磁吸元件的第四磁吸元件，以通过所述第三磁吸元件和所述第三磁吸元件之间的磁作用力迫使所述第二驱动元件的摩擦驱动部抵向所述第二摩擦作动部，通过这样的方式所述第二驱动元件摩擦地耦接于所述第二载体。The variable-focus camera module according to claim 40, wherein the first pre-pressing member comprises a first magnetic attraction element disposed on the first carrier and a first magnetic element disposed on the drive housing and corresponding to the first magnetic element. A second magnetic attraction element of a magnetic attraction element to force the friction driving part of the first driving element against the first magnetic attraction element through the magnetic force between the first magnetic attraction element and the second magnetic attraction element a friction actuating part, by which the first driving element is frictionally coupled to the first carrier; the second preloading part includes a third magnetic attraction element arranged on the second carrier and a a fourth magnetic attraction element located in the drive housing and corresponding to the third magnetic attraction element, so as to force the third magnetic attraction element through the magnetic force between the third magnetic attraction element and the third magnetic attraction element The friction driving parts of the two driving elements abut against the second friction actuating part, and in this way the second driving elements are frictionally coupled to the second carrier.
  48. 根据权利要求40所述的可变焦摄像模组，其中，所述第一驱动元件和所述第二驱动元件被同时设置于所述变焦透镜组的第一侧。The variable-focus camera module of claim 40, wherein the first driving element and the second driving element are simultaneously disposed on the first side of the zoom lens group.
  49. 根据权利要求48所述的可变焦摄像模组，其中，所述第一驱动元件和所述第二驱动元件在所述变焦透镜组的第一侧相互对齐地设置。The variable-focus camera module of claim 48, wherein the first driving element and the second driving element are arranged in alignment with each other on the first side of the zoom lens group.
  50. 根据权利要求48所述的可变焦摄像模组，其中，所述第一驱动元件被设置于所述第一载体的侧表面和所述驱动壳体的侧表面之间，所述第二驱动元件被设置于所述第二载体的侧表面和所述驱动壳体的侧表面之间。The variable-focus camera module of claim 48, wherein the first driving element is disposed between a side surface of the first carrier and a side surface of the driving housing, and the second driving element is disposed between the side surface of the second carrier and the side surface of the drive housing.
  51. 根据权利要求48所述的可变焦摄像模组，其中，所述第一驱动元件被设置于所述第一载体的底表面和所述驱动壳体的底表面之间，所述第二驱动元件被设置于所述第二载体的底表面和所述驱动壳体的底表面之间。The zoom camera module of claim 48, wherein the first driving element is disposed between the bottom surface of the first carrier and the bottom surface of the driving housing, and the second driving element is disposed between the bottom surface of the second carrier and the bottom surface of the drive housing.
  52. 根据权利要求48所述的可变焦摄像模组，其中，所述驱动组件， 进一步包括设置于所述变焦透镜组的与所述第一侧相对的第二侧的导引结构，所述导引结构被配置为引导所述对焦部分和所述变焦部分沿着该光轴移动。The zoom camera module according to claim 48, wherein the drive assembly further comprises a guide structure disposed on a second side of the zoom lens group opposite to the first side, the guide Structures are configured to guide the focus portion and the zoom portion to move along the optical axis.
  53. 根据权利要求52所述的可变焦摄像模组，其中，所述导引结构，包括：相间隔地形成于所述驱动壳体的第一支撑部和第二支撑部，以及，架设于所述第一支撑部和第二支撑部之间且贯穿所述第一载体和所述第二载体的至少一导杆，所述导杆与该光轴平行，以使得所述第一载体和所述第二载体能够被导引沿着平行于该光轴的所述导杆移动。The zoom camera module according to claim 52 , wherein the guide structure comprises: a first support part and a second support part formed on the drive casing at intervals, and a first support part and a second support part are erected on the drive casing. At least one guide rod between the first support part and the second support part and passing through the first carrier and the second carrier, the guide rod is parallel to the optical axis, so that the first carrier and the second carrier are parallel to the optical axis. The second carrier can be guided to move along said guide rods parallel to the optical axis.
  54. 根据权利要求52所述的可变焦摄像模组，其中，所述导引结构进一步包括设置于所述第一载体和所述驱动壳体之间的第一导引机构和设置于所述第二载体和所述驱动壳体之间的第二导引机构，其中，所述第一导引机构被配置为引导所述变焦部分沿着该光轴移动，所述第二导引机构被配置为引导所述对焦部分沿着该光轴移动。The zoom camera module according to claim 52, wherein the guiding structure further comprises a first guiding mechanism disposed between the first carrier and the driving housing and a first guiding mechanism disposed in the second a second guide mechanism between the carrier and the drive housing, wherein the first guide mechanism is configured to guide the zoom portion to move along the optical axis, and the second guide mechanism is configured to The focusing portion is guided to move along the optical axis.
  55. 根据权利要求54所述的可变焦摄像模组，其中，所述第一导引机构，包括设置于所述第一载体和所述驱动壳体之间的至少一滚珠，以及，设置于所述第一载体和所述驱动壳体之间的用于容纳所述至少一滚珠的收容槽；所述第二导引机构，包括设置于所述第二载体和所述驱动壳体之间的至少一滚珠，以及，设置于所述第二载体和所述驱动壳体之间的用于容纳所述至少一滚珠的收容槽。The zoom camera module according to claim 54, wherein the first guide mechanism comprises at least one ball disposed between the first carrier and the drive housing, and is disposed in the a receiving groove for accommodating the at least one ball between the first carrier and the drive housing; the second guide mechanism includes at least one A ball, and an accommodating groove disposed between the second carrier and the drive housing for accommodating the at least one ball.
  56. 根据权利要求54所述的可变焦摄像模组，其中，所述第一导引机构，包括：设置于所述第一载体和所述驱动壳体之间的至少一滑块，以及，设置于所述驱动壳体与所述第一载体之间的适于所述至少一滑块滑动的滑轨；所述第二导引机构，包括：设置于所述第二载体和所述驱动壳体之间的至少一滑块，以及，设置于所述驱动壳体与所述第二载体之间的适于所述至少一滑块滑动的滑轨。The zoom camera module according to claim 54, wherein the first guiding mechanism comprises: at least one sliding block disposed between the first carrier and the driving housing, and disposed in the A slide rail suitable for sliding of the at least one slider between the drive housing and the first carrier; the second guide mechanism includes: provided on the second carrier and the drive housing At least one slider between the two, and a slide rail disposed between the drive housing and the second carrier suitable for the at least one slider to slide.
  57. 根据权利要求33所述的可变焦摄像模组，进一步包括：用于将成 像光线转折至所述变焦透镜组的光转折元件。The zoom camera module according to claim 33, further comprising: a light turning element for turning the imaging light to the zoom lens group.
  58. 根据权利要求33所述的可变焦摄像模组，其中，所述对焦部分和所述变焦部分相邻地设置。The variable-focus camera module of claim 33, wherein the focusing portion and the zooming portion are disposed adjacent to each other.
  59. 一种潜望式摄像模组，其特征在于，包括：A periscope camera module, comprising:
    光转折组件，包括：第一安装载体和被安装于所述第一安装载体的光转折元件；A light turning assembly, comprising: a first mounting carrier and a light turning element mounted on the first mounting carrier;
    位于所述光转折组件的光转折路径上的变焦透镜组，包括：固定部分、变焦部分和对焦部分，其中，所述变焦透镜组设有一光轴；The zoom lens group located on the light turning path of the light turning assembly includes: a fixed part, a zooming part and a focusing part, wherein the zoom lens group is provided with an optical axis;
    位于所述变焦透镜组的通光路径上的感光组件，包括：线路板和电连接于所述线路板的感光芯片；以及The photosensitive component located on the light-passing path of the zoom lens group includes: a circuit board and a photosensitive chip electrically connected to the circuit board; and
    驱动组件，包括第一驱动载体、第二驱动载体、第一驱动模块、第二驱动模块和第三驱动模块；a driving assembly, including a first driving carrier, a second driving carrier, a first driving module, a second driving module and a third driving module;
    其中，所述变焦部分被安装于所述第一驱动载体，所述对焦部分被安装于所述第二驱动载体，所述第一驱动模块被配置为驱动所述第一驱动载体以带动所述变焦部分沿着该光轴所设定的方向移动，所述第二驱动模块被配置为驱动所述第二驱动载体以带动所述对焦部分沿着该光轴所设定的方向移动，以通过所述第一驱动模块和所述第二驱动模块分别移动所述变焦部分和所述对焦部分来进行光学变焦；Wherein, the zoom part is mounted on the first driving carrier, the focusing part is mounted on the second driving carrier, and the first driving module is configured to drive the first driving carrier to drive the The zooming part moves along the direction set by the optical axis, and the second driving module is configured to drive the second driving carrier to drive the focusing part to move along the direction set by the optical axis, so as to pass The first driving module and the second driving module move the zooming part and the focusing part respectively to perform optical zooming;
    其中，所述第三驱动模块被配置为驱动所述感光组件在垂直于所述光轴的平面内移动和/或驱动所述光转折组件进行旋转，以进行光学防抖。Wherein, the third driving module is configured to drive the photosensitive assembly to move in a plane perpendicular to the optical axis and/or drive the light turning assembly to rotate, so as to perform optical anti-shake.
  60. 根据权利要求59所述的潜望式摄像模组，进一步包括壳体，其中，所述壳体具有第一收容腔和第二收容腔，其中，所述光转折组件被收容于所述第一收容腔内，且所述第一驱动模块、所述第二驱动模块、所述第一驱动载体、所述第二驱动载体和所述变焦透镜组被收容于所述第二收容腔内。The periscope camera module according to claim 59, further comprising a casing, wherein the casing has a first receiving cavity and a second receiving cavity, wherein the light turning component is accommodated in the first receiving cavity The first driving module, the second driving module, the first driving carrier, the second driving carrier and the zoom lens group are housed in the second accommodating cavity.
  61. 根据权利要求60所述的潜望式摄像模组，其中，所述第一驱动模块包括至少一第一驱动元件，所述第二驱动模块包括至少一第二驱动元件，所述第一驱动元件和所述第二驱动元件被实施为压电致动器，所述压电致动 器，包括：压电主动部、可传动地连接于所述压电主动部件的压电主动部的从动轴，以及，可动地设置于所述从动轴的驱动部。The periscope camera module of claim 60, wherein the first driving module comprises at least one first driving element, the second driving module comprises at least one second driving element, the first driving element and the second drive element is implemented as a piezoelectric actuator comprising: a piezoelectric active part, a driven part of the piezoelectric active part drivably connected to the piezoelectric active part A shaft, and a drive portion movably provided to the driven shaft.
  62. 根据权利要求61所述的潜望式摄像模组，其中，所述第一驱动元件和所述第二驱动元件位于所述变焦透镜组的第一侧。The periscope camera module of claim 61, wherein the first driving element and the second driving element are located on a first side of the zoom lens group.
  63. 根据权利要求62所述的潜望式摄像模组，其中，所述第一驱动元件和所述第二驱动元件同向地设置。The periscope camera module of claim 62, wherein the first driving element and the second driving element are disposed in the same direction.
  64. 根据权利要求62所述的潜望式摄像模组，其中，所述第一驱动元件和所述第二驱动元件异向地设置。The periscope camera module of claim 62 , wherein the first driving element and the second driving element are disposed in opposite directions.
  65. 根据权利要求62所述的潜望式摄像模组，其中，所述驱动组件进一步包括被设置于所述变焦透镜组的与所述第一侧相对的第二侧的导引结构，其中，所述导引结构被配置为导引所述变焦部分和所述对焦部分沿着所述光轴所设定的方向移动。The periscope camera module of claim 62, wherein the driving assembly further comprises a guide structure disposed on a second side of the zoom lens group opposite to the first side, wherein the The guide structure is configured to guide the zoom portion and the focus portion to move along a direction set by the optical axis.
  66. 根据权利要求65所述的潜望式摄像模组，其中，所述导引结构包括：相间隔地设置于所述第二收容腔内的第一支撑部和第二支撑部，以及，架设于所述第一支撑部和第二支撑部之间且贯穿所述第一载体和所述第二载体的至少一导杆，所述导杆的延伸方向与所述光轴平行，通过这样的方式使得所述第一载体和所述第二载体能够被导引沿着平行于所述光轴的所述导杆所设定的方向移动。The periscope camera module according to claim 65, wherein the guide structure comprises: a first support part and a second support part arranged in the second receiving cavity at intervals, and a first support part and a second support part are erected on the second receiving cavity. At least one guide rod between the first support part and the second support part and passing through the first carrier and the second carrier, the extending direction of the guide rod is parallel to the optical axis, in this way The first carrier and the second carrier can be guided to move in a direction set by the guide rod parallel to the optical axis.
  67. 根据权利要求61所述的潜望式摄像模组，其中，所述第一驱动模块包括两个所述第一驱动元件，一个所述第一驱动元件被配置为从所述第一驱动载体的第一侧驱动所述第一驱动载体以带动所述变焦部分沿着所述光轴所设定的方向移动，另一个所述第一驱动元件被配置为从所述第一驱动载体的与所述第一侧相对的第二侧驱动所述第一驱动载体以带动所述变焦部分沿着所述光轴所设定的方向移动。61. The periscope camera module of claim 61, wherein the first drive module includes two of the first drive elements, one of the first drive elements being configured to extend from the first drive carrier The first side drives the first driving carrier to drive the zoom portion to move along the direction set by the optical axis, and the other first driving element is configured to move from the first driving carrier to the other side of the first driving carrier. The second side opposite to the first side drives the first driving carrier to drive the zoom portion to move along the direction set by the optical axis.
  68. 根据权利要求61所述的潜望式摄像模组，其中，所述第二驱动模块包括两个所述第二驱动元件，其中，一个所述第二驱动元件被配置为从所述第二驱动载体的第一侧驱动所述第二驱动载体以带动所述对焦部分沿着所述光轴所设定的方向移动，另一个所述第二驱动元件被配置为从所述第二驱动载体的与所述第一侧相对的第二侧驱动所述第二驱动载体以带动所述对焦部分沿着所述光轴所设定的方向移动。61. The periscope camera module of claim 61, wherein the second drive module includes two of the second drive elements, wherein one of the second drive elements is configured to drive from the second drive The first side of the carrier drives the second driving carrier to drive the focusing portion to move along the direction set by the optical axis, and the other second driving element is configured to drive the second driving carrier from the second driving carrier. The second side opposite to the first side drives the second driving carrier to drive the focusing portion to move along the direction set by the optical axis.
  69. 根据权利要求59所述的潜望式摄像模组，其中，所述第三驱动模块包括二第三驱动元件，所述第三驱动元件被实施为压电致动器，所述压电致动器，包括：压电主动部、可传动地连接于所述压电主动部件的压电主动部的从动轴，以及，可动地设置于所述从动轴的驱动部，其中，一个所述第三驱动元件被配置为驱动所述感光组件在垂直于所述光轴的平面内沿着第一方向移动，另一所述第三驱动元件被配置为驱动所述感光组件在垂直于所述光轴的平面内沿着第二方向移动，所述第二方向垂直于所述第一方向。The periscope camera module of claim 59, wherein the third drive module includes two third drive elements, the third drive elements being implemented as piezoelectric actuators, the piezoelectric actuators The device includes: a piezoelectric active part, a driven shaft drivably connected to the piezoelectric active part of the piezoelectric active component, and a driving part movably arranged on the driven shaft, wherein one of the The third driving element is configured to drive the photosensitive member to move along a first direction in a plane perpendicular to the optical axis, and the other third driving member is configured to drive the photosensitive member to move in a direction perpendicular to the optical axis. The optical axis moves along a second direction in the plane of the optical axis, and the second direction is perpendicular to the first direction.
  70. 根据权利要求69所述的潜望式摄像模组，其中，所述驱动组件包括第一框架和第二框架，所述感光组件被设置于所述第一框架，一个所述第三驱动元件被安装于所述第二框架并被配置为驱动所述第一框架以带动所述感光组件在垂直于所述光轴的平面内沿着所述第一方向移动，另一所述第三驱动元件被配置为驱动所述第二框架以通过用于驱动所述第一框架的所述第三驱动元件带动所述第一框架以带动所述感光组件在垂直于所述光轴的平面内沿着所述第二方向移动。The periscope camera module of claim 69, wherein the driving assembly comprises a first frame and a second frame, the photosensitive assembly is disposed on the first frame, and one of the third driving elements is Installed on the second frame and configured to drive the first frame to drive the photosensitive assembly to move along the first direction in a plane perpendicular to the optical axis, and another third driving element is configured to drive the second frame to drive the first frame through the third drive element for driving the first frame to drive the photosensitive assembly along a plane perpendicular to the optical axis The second direction moves.
  71. 根据权利要求59所述的潜望式摄像模组，其中，所述第三驱动模块包括二第三驱动元件，所述第三驱动元件被实施为压电行波旋转型超声波致动器，其中，一个所述第三驱动元件被配置为驱动所述光转折组件绕着第一轴旋转，另一所述第三驱动元件被配置为驱动所述光转折组件绕着第二轴旋转，所述第二轴垂直于所述第一轴。The periscope camera module of claim 59, wherein the third driving module comprises two third driving elements, the third driving elements being implemented as piezoelectric traveling wave rotary ultrasonic actuators, wherein , one of the third driving elements is configured to drive the light turning assembly to rotate about a first axis, the other third driving element is configured to drive the light turning assembly to rotate about a second axis, the The second axis is perpendicular to the first axis.
  72. 根据权利要求71所述的潜望式摄像模组，其中，所述光转折组件进一步包括具有安装腔的第二安装载体，所述光转折元件和所述第一安装载 体被安装于所述第二安装载体的安装腔内，其中，一个所述第三驱动元件被安装于所述第一安装载体并被配置为驱动第一安装载体以带动所述光转折组件绕着所述第一轴旋转，另一所述第三驱动元件被安装于所述第二安装载体并被配置为驱动第二安装载体以通过所述第一安装载体带动所述光转折组件绕着所述第二轴旋转。The periscope camera module of claim 71 , wherein the light-reversing assembly further comprises a second mounting carrier having a mounting cavity, the light-reversing element and the first mounting carrier are mounted on the first mounting carrier. In the mounting cavity of the two mounting carriers, one of the third driving elements is mounted on the first mounting carrier and is configured to drive the first mounting carrier to drive the light turning assembly to rotate around the first axis and another third driving element is mounted on the second mounting carrier and configured to drive the second mounting carrier to drive the light turning assembly to rotate around the second axis through the first mounting carrier.
  73. 根据权利要求59所述的潜望式摄像模组，其中，所述第三驱动模块包括二第三驱动元件，所述第三驱动元件被实施为电磁式马达，其中，一个所述电磁式马达被配置为驱动所述光转折组件绕着第一轴旋转，另一所述电磁式马达被配置为驱动所述光转折组件绕着第二轴旋转，所述第二轴垂直于所述第一轴。The periscope camera module of claim 59, wherein the third drive module includes two third drive elements, the third drive elements being implemented as electromagnetic motors, wherein one of the electromagnetic motors is configured to drive the light turning assembly to rotate about a first axis, and the other electromagnetic motor is configured to drive the light turning assembly to rotate about a second axis, the second axis being perpendicular to the first axis axis.
  74. 根据权利要求59所述的潜望式摄像模组，其中，所述第三驱动模块包括二第三驱动元件，其中，一个所述第三驱动元件被实施为压电致动器，另一个所述第三驱动元件被实施为压电行波旋转型超声波致动器，其中，所述压电致动器被配置为驱动所述感光组件在垂直于所述光轴的平面内沿着第一方向移动，所述压电行波旋转型超声波致动器被配置为驱动所述光转折组件绕着第一轴旋转。The periscope camera module of claim 59, wherein the third drive module includes two third drive elements, wherein one of the third drive elements is implemented as a piezoelectric actuator, and the other is implemented as a piezoelectric actuator. The third driving element is implemented as a piezoelectric traveling wave rotary ultrasonic actuator, wherein the piezoelectric actuator is configured to drive the photosensitive member along a first axis in a plane perpendicular to the optical axis. moving in a direction, the piezoelectric traveling wave rotary ultrasonic actuator is configured to drive the light turning component to rotate about a first axis.
  75. 根据权利要求74所述的潜望式摄像模组，其中，所述驱动组件包括第一框架，所述感光组件被设置于所述第一框架，其中，所述压电致动器并被配置为驱动所述第一框架以带动所述感光组件在垂直于所述光轴的平面内沿着所述第一方向移动。The periscope camera module of claim 74, wherein the driving assembly comprises a first frame, the photosensitive assembly is disposed on the first frame, wherein the piezoelectric actuator is configured to In order to drive the first frame to drive the photosensitive component to move along the first direction in a plane perpendicular to the optical axis.
  76. 根据权利要求75所述的潜望式摄像模组，其中，所述第一方向为所述壳体所设定的高度方向。The periscope camera module of claim 75, wherein the first direction is a height direction set by the casing.
  77. 根据权利要求76所述的潜望式摄像模组，其中，所述第一框架具有U型结构。The periscope camera module of claim 76, wherein the first frame has a U-shaped structure.
  78. 根据权利要求59所述的潜望式摄像模组，其中，所述第三驱动模 块，包括一第三驱动元件，所述第三驱动元件被实施为压电行波旋转型超声波致动器，其中，所述压电行波旋转型超声波致动器被配置为驱动所述光转折组件绕着第一轴旋转。The periscope camera module according to claim 59, wherein the third driving module comprises a third driving element, and the third driving element is implemented as a piezoelectric traveling wave rotary ultrasonic actuator, Wherein, the piezoelectric traveling wave rotary ultrasonic actuator is configured to drive the light turning component to rotate around the first axis.
  79. 根据权利要求59所述的潜望式摄像模组，其中，所述第三驱动模块，包括一第三驱动元件，所述第三驱动元件被实施为电磁式马达，其中，所述电磁式马达被配置为驱动所述光转折组件绕着第一轴旋转。The periscope camera module of claim 59, wherein the third driving module comprises a third driving element, the third driving element is implemented as an electromagnetic motor, wherein the electromagnetic motor is configured to drive the light turning assembly to rotate about a first axis.
  80. 根据权利要求59所述的潜望式摄像模组，其中，所述第三驱动模块，包括一第三驱动元件，所述第三驱动元件被实施为压电致动器，其中，所述压电致动器被配置为驱动所述感光组件在垂直于所述光轴的平面内沿着第一方向移动。The periscope camera module of claim 59, wherein the third driving module comprises a third driving element, the third driving element being implemented as a piezoelectric actuator, wherein the pressure An electrical actuator is configured to drive the photosensitive assembly to move along a first direction in a plane perpendicular to the optical axis.
  81. 根据权利要求61所述的潜望式摄像模组，其中，所述压电致动器所产生的驱动力的大小为0.6N至2N。The periscope camera module of claim 61, wherein the magnitude of the driving force generated by the piezoelectric actuator is 0.6N to 2N.
  82. 根据权利要求59所述的潜望式摄像模组，其中，所述对焦部分与所述对焦部分相邻地设置。The periscope camera module of claim 59, wherein the focusing portion is disposed adjacent to the focusing portion.
  83. 根据权利要求82所述的潜望式摄像模组，其中，所述变焦部分位于所述固定部分和所述对焦部分之间。The periscope camera module of claim 82, wherein the zoom portion is located between the fixed portion and the focus portion.
  84. 根据权利要求82所述的潜望式摄像模组，其中，所述对焦部分位于所述固定部分和所述变焦部分之间。The periscope camera module of claim 82, wherein the focusing portion is located between the fixing portion and the zooming portion.
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