WO2023051132A1 - 摄像头模组及电子设备 - Google Patents

摄像头模组及电子设备 Download PDF

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Publication number
WO2023051132A1
WO2023051132A1 PCT/CN2022/115632 CN2022115632W WO2023051132A1 WO 2023051132 A1 WO2023051132 A1 WO 2023051132A1 CN 2022115632 W CN2022115632 W CN 2022115632W WO 2023051132 A1 WO2023051132 A1 WO 2023051132A1
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WO
WIPO (PCT)
Prior art keywords
piezoelectric
functional component
camera module
module according
component
Prior art date
Application number
PCT/CN2022/115632
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English (en)
French (fr)
Inventor
陈伟
Original Assignee
Oppo广东移动通信有限公司
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 CN202111165760.4A external-priority patent/CN115914784A/zh
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023051132A1 publication Critical patent/WO2023051132A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets

Definitions

  • the present application relates to the technical field of electronic equipment, in particular to a camera module and electronic equipment.
  • VCM Voice Coil Motor
  • the voice coil motor is a device that uses the interaction between the magnetic field from the permanent magnet steel and the magnetic poles in the magnetic field generated by the energized coil conductor to generate regular motion. When the coil is energized, the magnetic fields generated by the coil and the magnetic steel interact to push the lens and change the focusing distance.
  • the lens is getting heavier, and higher requirements are put forward for all aspects of the motor.
  • the voice coil motor has gradually been unable to meet these new requirements, resulting in the improvement of the quality of the camera module. Is limited.
  • the present application provides a camera module and electronic equipment, and the camera module has higher quality than the prior art.
  • the present application provides a camera module, and the camera module includes:
  • the first base assembly is used to drive the functional assembly, including:
  • the first bearing seat has a first space for accommodating the functional components
  • the first piezoelectric module carried on the first bearing seat, includes: a first friction member, a first piezoelectric member, and a first force applying member, wherein,
  • the first force application member includes a first surface and a second surface oppositely arranged, the first surface faces the functional component, the first piezoelectric element is arranged on the first surface, and the first friction The first piezoelectric element is arranged on the first piezoelectric element, and the first friction element is in contact with the functional component; the first piezoelectric element is used to drive the first friction element to drive the functional component to be relatively
  • the first bearing seat moves, and the first piezoelectric element excites at least one mode when it works.
  • the present application further provides an electronic device, the electronic device includes a device body and a camera module, and the camera module is installed on the device body.
  • FIG. 1 is a schematic diagram of an electronic device provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of an electronic device provided by another embodiment of the present application.
  • FIG. 3 is an exploded view of a camera module provided by an embodiment of the present application.
  • FIG. 4 is an assembly diagram of the camera module shown in FIG. 3 in an embodiment.
  • FIG. 5 is a cross-sectional view of the camera module shown in FIG. 4 along line A-A.
  • FIG. 6 is a schematic diagram of a first piezoelectric module in the camera module shown in FIG. 3 .
  • FIG. 7 is a schematic diagram of the first piezoelectric module shown in FIG. 6 at another viewing angle.
  • FIG. 8 is a schematic diagram of another first piezoelectric module provided by the embodiment of the present application.
  • FIG. 9 is a schematic diagram of a first bearing seat in the camera module shown in FIG. 3 .
  • FIG. 10 is an assembly diagram of another embodiment of the camera module shown in FIG. 3 .
  • FIG. 11 is a cross-sectional view of the camera module shown in FIG. 10 along line B-B.
  • FIG. 12 is an assembly diagram of the camera module shown in FIG. 3 in another embodiment.
  • FIG. 13 is a schematic diagram of functional components in the camera module shown in FIG. 3 .
  • FIG. 14 is an exploded view of a camera module provided by another embodiment of the present application.
  • FIG. 15 is an assembly diagram of the camera module shown in FIG. 14 .
  • FIG. 16 is a schematic diagram of functional devices in the camera module shown in FIG. 14 .
  • FIG. 17 is a schematic diagram of the first base component in the camera module shown in FIG. 14 .
  • FIG. 18 is a schematic diagram of a first piezoelectric module in the first base assembly shown in FIG. 17 .
  • Fig. 19 is a schematic diagram of an installation form of the first rolling element provided by an embodiment of the present application.
  • Fig. 20 is a schematic diagram of the installation form of the second rolling body provided by an embodiment of the present application.
  • FIG. 21 is an exploded view of a camera module provided by another embodiment of the present application.
  • FIG. 22 is an assembly diagram of the camera module shown in FIG. 21 .
  • FIG. 23 is a schematic diagram of a second piezoelectric module in the second base assembly shown in FIG. 21 .
  • Fig. 24 is a schematic diagram of an installation form of the third rolling body provided by an embodiment of the present application.
  • Fig. 25 is a schematic diagram of the installation form of the fourth rolling element provided by an embodiment of the present application.
  • FIG. 26 is an exploded view of a camera module provided by another embodiment of the present application.
  • FIG. 27 is an assembly diagram of the camera module shown in FIG. 26 in an embodiment.
  • FIG. 28 is a schematic diagram of functional devices in the camera module shown in FIG. 14 .
  • FIG. 29 is a schematic diagram of a third piezoelectric module in the third base assembly shown in FIG. 26 .
  • Fig. 30 is a schematic diagram of the installation form of the fifth rolling element provided by an embodiment of the present application.
  • FIG. 31 is an assembly diagram of another embodiment of the camera module shown in FIG. 26 .
  • Fig. 32 is a schematic diagram of the installation form of the limiting member provided by the embodiment of the present application.
  • FIG. 33 is a schematic diagram of the limiting member shown in FIG. 32 .
  • Fig. 34 is a schematic diagram of the installation form of the outer cover provided by the embodiment of the present application.
  • FIG. 35 is an assembly diagram of a camera module provided by another embodiment of the present application.
  • FIG. 36 is an exploded view of the camera module shown in FIG. 35 .
  • FIG. 37 is a schematic diagram of a pretensioning scheme of the camera module provided by the present application.
  • FIG. 38 is a schematic diagram of another pretensioning scheme of the camera module provided by the present application.
  • FIG. 39 is a schematic diagram of another pretensioning scheme of the camera module provided by the present application.
  • FIG. 40 is a schematic diagram of another pretensioning scheme of the camera module provided by the present application.
  • Fig. 41 is a schematic diagram of another pretensioning scheme of the camera module provided by the present application.
  • FIG. 42 is a schematic diagram of another pretensioning scheme of the camera module provided by the present application.
  • FIG. 43 is a schematic diagram of another pretensioning scheme of the camera module provided by the present application.
  • Fig. 44 is a schematic diagram of a first force applying member provided by another embodiment of the present application.
  • FIG. 45 is a schematic diagram of another pretensioning scheme of the camera module provided by the present application.
  • Fig. 46 is a schematic diagram of another pretensioning scheme of the camera module provided by the present application.
  • Fig. 47 is a schematic diagram of a stabilization scheme of the functional components provided by the present application.
  • Fig. 48 is a schematic diagram of another stabilization scheme of the functional components provided by the present application.
  • Fig. 49 is an exploded view of a camera module provided by another embodiment of the present application.
  • FIG. 50 is a further exploded view of the camera module shown in FIG. 49 .
  • FIG. 51 is an assembly diagram of the camera module shown in FIG. 50 .
  • FIG. 52 is an enlarged view of area A of the camera module shown in FIG. 51 .
  • FIG. 53 is a schematic diagram of the first piezoelectric module in the camera module shown in FIG. 50 .
  • FIG. 54 is a schematic diagram of the first force applying member in the first piezoelectric module shown in FIG. 53 .
  • Fig. 55 is a schematic structural diagram of the first piezoelectric element and the first friction element in some embodiments of the present application.
  • Fig. 56 is a schematic structural view of the piezoelectric body of the first piezoelectric element in the embodiment of Fig. 55 .
  • Fig. 57 is a schematic structural diagram of the first piezoelectric element and the first friction element in other embodiments of the present application.
  • Fig. 58 is a schematic structural diagram of the first piezoelectric element and the first friction element in other embodiments of the present application.
  • Fig. 59 is a schematic structural diagram of the first piezoelectric element and the first friction element in other embodiments of the present application.
  • FIG. 60 is a schematic structural view of the piezoelectric body of the first piezoelectric element in the embodiment of FIG. 59 .
  • Fig. 61 is a schematic structural diagram of the first piezoelectric element and the first friction element in other embodiments of the present application.
  • Fig. 62 is a schematic structural view of the first piezoelectric element and the first friction element in other embodiments of the present application.
  • the application provides a camera module, the camera module includes:
  • the first base assembly is used to drive the functional assembly, including:
  • the first bearing seat has a first space for accommodating the functional components
  • the first piezoelectric module carried on the first bearing seat, includes: a first friction member, a first piezoelectric member, and a first force applying member, wherein,
  • the first force application member includes a first surface and a second surface oppositely arranged, the first surface faces the functional component, the first piezoelectric element is arranged on the first surface, and the first friction The first piezoelectric element is arranged on the first piezoelectric element, and the first friction element is in contact with the functional component; the first piezoelectric element is used to drive the first friction element to drive the functional component to be relatively
  • the first bearing seat moves, and the first piezoelectric element excites at least one mode when it works.
  • the first force application member includes a force application portion and at least one connection portion, the force application portion is connected to the connection portion, wherein the connection portion is connected to the first bearing seat, and the force application portion is connected to the first bearing seat.
  • the force part is connected to the first piezoelectric part, and the force applying part is used to make the first friction part abut against the functional component.
  • the first force applying member has elasticity, and opposite ends of the first force applying member abut against the first piezoelectric member and the first bearing seat, and elastically compress.
  • the first bearing seat is provided with a storage space
  • the storage space includes a first sub-accommodation space and a second sub-accommodation space
  • the first sub-accommodation space communicates with the first space
  • the second sub-accommodation space The space is provided on the side of the first bearing seat away from the first space and communicates with the first sub-accommodation space
  • the first sub-accommodation space is used to accommodate at least part of the first piezoelectric element.
  • the second sub-accommodating space is used for accommodating the force applying part and the connecting part.
  • the force applying portion has an opening, and the side of the first piezoelectric member facing away from the first friction member is at least partially exposed through the opening.
  • a concave groove is provided on the side of the functional component facing the first piezoelectric module, and the first friction member is at least partially accommodated in the concave groove and abuts against the bottom wall of the concave groove.
  • the first force applying member is bonded to the first piezoelectric member.
  • the functional components are driven by the first piezoelectric module to move in a first direction, or in a second direction, or in a third direction; the first direction, the second direction and the The third directions are perpendicular to each other.
  • the functional component has a first end face and a second end face arranged opposite to each other, the first end face abuts against the first bearing seat, and the relative direction between the first end face and the second end face is the third direction; when the first piezoelectric module is powered on, the first piezoelectric module can drive the functional component to move in the third direction.
  • the functional component has a first side, a second side, and a third side, and the first side and the third side are arranged opposite to each other and the opposite direction is the first direction; the first piezoelectric module resists connected to the second side, in the first direction, the opposite sides of the functional component are spaced apart from the first bearing seat; when the first piezoelectric module is energized, the first The piezoelectric module can drive the functional component to move along the first direction.
  • the camera module further includes a third base assembly, the third base assembly includes a third bearing seat and a third piezoelectric module carried on the third bearing seat, the third base assembly
  • the third base assembly There is a third space for accommodating the second base component;
  • the functional component has a first end surface and a second end surface opposite to each other, and the first end surface abuts against the first bearing seat, the relative direction of the first end surface and the second end surface is a third direction;
  • the third piezoelectric module is used to drive the second base component to drive the functional component along the third direction sports.
  • the camera module further includes a limiting member, and the limiting member abuts against the functional component, the first bearing seat, the first end surface along the direction from the second end surface to the first end surface. Two bearing seats, and the limiting member is connected to the second bearing seat.
  • the functional component includes a functional device and a carrier frame, the carrier frame is sleeved on the outer periphery of the functional device and carried on the first bearing seat, and the carrier frame is used to abut the first piezoelectric
  • the camera module also includes a photosensitive element, the photosensitive element is set opposite to the functional device, when the first piezoelectric module is powered on, the functional device will be relative to the photosensitive element
  • the component moves, wherein the functional device is a lens.
  • the first bearing seat includes a first bottom plate portion and a first frame portion surrounding and connected to the periphery of the first bottom plate portion, and the first bottom plate portion and the first frame portion are jointly surrounded to form the In the first space, the first piezoelectric module is carried on the first frame portion, the first frame portion has a receiving space communicating with the first space, and the first piezoelectric module is at least partially disposed on the inside the containment space.
  • the first base assembly further includes an adjustment assembly
  • the adjustment assembly includes a first adjustment member disposed on the side of the first frame part away from the functional assembly, the first adjustment member is connected to the The first force-applying member and the first frame portion, the first adjusting member makes the pre-tightening force applied by the first piezoelectric module to the functional component reach a preset value through the first force-applying member.
  • the first force application member includes a connected force application portion and at least one connection portion, the force application portion is connected to the first piezoelectric element, and the connection portion is arranged at a position away from the first frame portion.
  • One side of the functional component, and spaced apart from the first frame part, the connecting part is connected to the first adjusting part, and the first adjusting part is used to adjust the connecting part and the first Spacing distance between border sections.
  • the side of the force application part facing away from the functional component is provided with a first protruding part
  • the side of the first frame part away from the functional component is provided with a second protruding part
  • the second protruding part is The raised part is closer to the functional component than the first raised part
  • the first adjusting part is a bendable pull wire
  • the opposite ends of the first adjusting part are respectively wound around the first raised part. raised portion and the second raised portion.
  • the connecting portion has a first via hole
  • the first frame portion has a first adjustment hole facing the via hole
  • the first adjustment hole is a threaded hole
  • the first adjustment member passes through the first adjustment hole.
  • the first via hole is connected with the first adjustment hole through threads.
  • the first adjusting member is a boss protruding from the side of the first frame portion away from the functional component
  • the connecting portion has a first through hole
  • the first adjusting member is passed through the first
  • the end of the first regulating member away from the functional component is connected to the connecting portion through heat riveting, welding or bonding.
  • the first force application member includes a connected force application portion and at least one connection portion, the connection portion is connected to the first frame portion, the force application portion is connected to the first piezoelectric element,
  • the adjustment assembly further includes a first bracket, the first bracket is disposed on the side of the first frame part away from the functional assembly, and is opposite to the first force application member, the first adjustment member The first adjusting member is screwed to the first bracket and passes through the first bracket, and the first adjusting member abuts against a side of the force applying portion away from the functional component.
  • the first frame part is provided with a receiving hole located on the side of the functional component away from the first piezoelectric module, the receiving hole runs through the first frame part, and the first base component also
  • An adjustment assembly is included, the adjustment assembly includes an adjustment block and a second adjustment piece, the adjustment block is at least partially disposed in the receiving hole, and the second adjustment piece is disposed on the first frame part away from the functional assembly one side, and the second adjustment piece is connected to the adjustment block and the first frame part, the second adjustment piece is used to force the adjustment block to abut against the functional component, so that the first The pre-tightening force applied by a piezoelectric module to the functional component reaches a preset value.
  • the adjusting block is provided with a third protruding part, and the side of the first frame part facing away from the functional component is provided with a fourth protruding part, and the fourth protruding part is compared with the first protruding part.
  • the three protrusions are adjacent to the functional components, the second adjustment member is a bendable pull wire, and the opposite ends of the adjustment member are wound around the third protrusion and the fourth protrusion respectively superior.
  • the adjustment assembly further includes a second bracket, the second bracket is arranged on the side of the first frame part away from the functional assembly, and is opposite to the adjustment block, and the second adjustment member passes through
  • the second adjusting member is threadedly connected to the second bracket and passes through the second bracket, and the second adjusting member abuts against a side of the adjusting block facing away from the functional component.
  • the first base component further includes a first rolling body, the first rolling body is arranged between the adjustment block and the functional component, and movably abuts on the functional component and the functional component. Adjustment block.
  • the first force application member includes a first clamping portion, a second clamping portion, and a third clamping portion that are sequentially bent and connected, and the first clamping portion and the third clamping portion are oppositely arranged.
  • the second clamping part faces the functional component;
  • the first clamping part is provided with a first protrusion
  • the second clamping part is provided with a second protrusion
  • a third protruding portion protrudes from the third clamping portion, the first protruding portion and the third protruding portion are used to clamp the first piezoelectric element together, and the second protruding portion
  • the out portion is used to abut against the first piezoelectric element, so that the pre-tightening force applied by the first piezoelectric module to the functional component reaches a preset value.
  • the first urging member is disposed in the receiving space, and the receiving space is a groove on the first frame portion.
  • the first urging member is arranged in the receiving space, and the receiving space passes through the first frame part, and the first bearing seat further includes a first baffle part, and the first baffle part It is disposed on a side of the first frame part away from the functional component, and abuts against a side of the second clamping part away from the first piezoelectric element.
  • the first piezoelectric module is used to drive the functional component to move along the optical axis
  • the first base component further includes a stabilizing component
  • the stabilizing component is arranged at the position where the functional component is away from the first pressure
  • the stabilizing component is used to stabilize the functional component, so as to avoid or weaken the tilting of the functional component under the action of the first piezoelectric module.
  • the stabilizing component includes a first magnetic part and a second magnetic part arranged at intervals, the first magnetic part is carried on the first bearing seat, the second magnetic part is carried on the functional component, and the The first magnetic part is used for magnetically absorbing the second magnetic part.
  • the stabilizing component is carried on the first bearing base and abuts against the functional component, the stabilizing component is a piezoelectric module, and is used to cooperate with the first piezoelectric module through the inverse piezoelectric effect when energized.
  • the electrical modules jointly drive the functional components to move along the optical axis.
  • a groove or a through hole is provided on the first force applying member.
  • the first piezoelectric element includes a plurality of stacked piezoelectric bodies, and each piezoelectric body includes a first electrode layer and a second electrode layer oppositely arranged; wherein, two adjacent piezoelectric bodies pass through The first electrode layers on the two piezoelectric bodies are bonded, and/or, two adjacent piezoelectric bodies are bonded through the second electrode layers on the two piezoelectric bodies.
  • the polarization direction of each piezoelectric body is the same; the polarization direction is the direction in which the first electrode layer points to the second electrode layer, or the polarization direction is the direction of the second electrode layer layer pointing in the direction of the first electrode layer.
  • the first electrode layer and the second electrode layer are made of conductive silver paste or conductive glue.
  • each piezoelectric body includes a first surface and a second surface oppositely disposed, the first electrode layer is formed on the first surface, and the second electrode layer is formed on the second surface; wherein , the extending directions of two adjacent edges of the first surface or the second surface are respectively the first direction and the second direction, and the first electrode layer covers the edges extending along the second direction of the first surface , the second electrode layer covers the edge of the second surface extending along the first direction.
  • the first electrode layer is divided into first electrodes and second electrodes arranged at intervals along the first direction, and the side surfaces of the plurality of piezoelectric bodies are provided with first external electrodes, second external electrodes and third external electrodes. electrodes; the first electrodes on each of the piezoelectric bodies are connected in parallel through the first external electrodes, the second electrodes on each of the piezoelectric bodies are connected in parallel through the second external electrodes, and each of the piezoelectric bodies is connected in parallel through the second external electrodes.
  • the second electrode layer on the piezoelectric body is connected in parallel through the third external electrode.
  • the first electrode layer is divided into a first electrode, a second electrode, a third electrode and a fourth electrode arranged in an array, the first electrode and the third electrode are arranged diagonally, and the first electrode The second electrode and the fourth electrode are arranged diagonally; wherein, the driving voltage applied to the first electrode and the third electrode is the same, and the driving voltage applied to the second electrode and the fourth electrode is same voltage.
  • the present application also provides an electronic device, the electronic device includes a device body and a camera module, and the camera module is installed on the device body.
  • the present application provides an electronic device 1, the electronic device 1 includes a device body 200 and a camera module 100 described in any of the following embodiments, the camera module 100 is installed on the device body 200 .
  • the electronic device 1 may be a mobile phone, a tablet computer, a notebook computer, a camera, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a wearable device (such as a smart watch, a bracelet, a VR device, etc.), TVs, car equipment, e-readers and other equipment.
  • UMPC ultra-mobile personal computer
  • a wearable device such as a smart watch, a bracelet, a VR device, etc.
  • TVs car equipment, e-readers and other equipment.
  • the device body 200 refers to the main body of the electronic device 1 .
  • the main body includes electronic components that implement the main functions of the electronic device 1 and a housing that protects and carries these electronic components.
  • the device body 200 may include a display screen 210, a middle frame 220, and a battery cover 230. Both the display screen 210 and the battery cover 230 are connected to the middle frame 220, and are arranged on opposite sides.
  • the camera module 100 can be disposed on any side of the electronic device 1 , which is not limited in this application.
  • the camera module 100 can be arranged on the front, back, or side of the mobile phone.
  • the so-called front refers to the side of the mobile phone with the display screen 210
  • the so-called back refers to the side of the mobile phone with the battery cover 230
  • the so-called side refers to the peripheral side of the middle frame 220 of the mobile phone.
  • different types of electronic devices 1 may have different definitions of terms such as front, back, and side, and details of other types of electronic devices 1 will not be described here.
  • the present application provides a camera module 100 , and the camera module 100 includes: a functional component 40 and a first base component 10 .
  • the first base assembly 10 includes a first bearing seat 11 and a first piezoelectric module 12 .
  • the first bearing seat 11 has a first space X1.
  • the first space X1 is used for accommodating the functional components 40 .
  • the first piezoelectric module 12 includes a first force applying member 121 , and a first piezoelectric member 122 and a first friction member 123 connected thereto.
  • the first force applying member 121 is connected to the first bearing seat 11 and is used for abutting the first friction member 123 against the functional component 40 through the first piezoelectric member 122 .
  • the first piezoelectric element 122 is used to vibrate when energized, so that the first friction element 123 drives the functional component 40 to move relative to the first bearing seat 11 .
  • the camera module 100 provided by this application will be described in detail below.
  • the camera module 100 includes a functional component 40 and a first base component 10 .
  • the functional component 40 is a component in the camera module 100 that can realize a specific function.
  • the first base assembly 10 includes a first bearing seat 11 and a first piezoelectric module 12 .
  • the first bearing seat 11 has a first space X1.
  • the first space X1 is used for accommodating the functional components 40 .
  • the first piezoelectric module 12 includes a first force applying member 121 , a first piezoelectric member 122 and a first friction member 123 connected in sequence.
  • the first force applying member 121 is connected to the first bearing seat 11 and is used to abut the first friction member 123 against the side wall of the functional component 40 .
  • the first piezoelectric element 122 can drive the functional component 40 to move relative to the first bearing seat 11 through the first friction element 123 .
  • At least one mode means that the number of modes is one or more (the so-called multiple means that the number is greater than or equal to two).
  • the first piezoelectric element 122 When the number of modes is one, the first piezoelectric element 122 generates micro-vibration and driving force by means of one mode, and then converts the accumulated micro-vibration into a macroscopic straight line of the functional component 40 through the first friction element 123 movement, thereby realizing the driving function. It can be understood that the drive control mode corresponding to one mode is simpler, thus reducing the design difficulty.
  • the first piezoelectric element 122 can work under the coupling of multiple modes. Specifically, after an alternating current signal of a certain frequency is applied to the first piezoelectric element 122 , the first piezoelectric element 122 simultaneously excites multiple modes. The first piezoelectric element 122 generates micro-vibration and driving force by means of multiple modal couplings, and then converts multiple accumulated micro-vibrations into macroscopic linear motion of the functional component 40 through the first friction element 123, thereby realizing the driving function. It can be understood that the first piezoelectric element 122 excites multiple modes, and the multiple modes are coupled.
  • the first piezoelectric element 122 Compared with the first piezoelectric element 122 that only excites one mode, after the multiple modes are coupled, the first piezoelectric The energy density generated by the electrical element 122 is greater, that is, the driving force is greater. Under the condition of the same driving force, the volume of the first piezoelectric element 122 coupled with multiple modes can be made smaller.
  • the type of mode can be, but not limited to, the first-order elongation (L1) vibration mode, the second-order bending vibration mode (B2), and the first-order bending (B1) vibration mode.
  • Mode coupling can be, but is not limited to, L1-B2 operating mode coupling the first elongation (L1) vibration mode and the second bending vibration mode (B2), or the first bending (B1) mode in two orthogonal directions Coupled B1-B1 working modes, etc.
  • the first friction member 123 protrudes from one side of the first piezoelectric member 122 , and the first force applying member 121 provides the first friction member 123 with a force toward the functional component 40 through the first piezoelectric member 122 .
  • the first friction member 123 is urged to press against the sidewall of the functional component 40 , so there is a positive pressure between the first friction member 123 and the functional component 40 , so that the first friction member 123 can drive the functional component 40 through friction.
  • the driving type of the first piezoelectric module 12 may be stick-slip or ultrasonic.
  • the first force-applying member 121 can be a shrapnel, and the shrapnel can be embedded in the first bearing seat through in-mold injection molding (insert modeling) or a similar process, and the force exerted on the first piezoelectric member 122 can be changed by changing the shape or curvature of the shrapnel. of preload.
  • the material of the first force applying member 121 can be metal materials such as aluminum, iron, copper, stainless steel or other elastic elastic body materials.
  • the first force applying member 121 can be fixed with the first piezoelectric member 122 by, but not limited to, dispensing glue, welding, welding and the like.
  • the first piezoelectric element 122 is a piezoelectric material.
  • the piezoelectric material can be made of piezoelectric ceramics or piezoelectric single crystals, or multilayer ceramics. Specifically, the piezoelectric material can be made of lead zirconate titanate (PZT) base pressure. Electric ceramics, potassium sodium niobate (KNN) based piezoelectric ceramics, barium titanate (BT) based piezoelectric ceramics, lead magnesium niobate-lead niobate indium (PMN-PT) based piezoelectric single crystal, textured ceramics, etc. .
  • KNN potassium sodium niobate
  • BT barium titanate
  • PMN-PT lead magnesium niobate-lead niobate indium
  • Electrodes are plated on the surface of the piezoelectric element, which can be divided into several electrodes according to the requirements for applying control signals.
  • the first piezoelectric element 122 is spaced apart from the first bearing seat, so that a certain space is left around the first piezoelectric element 122 to ensure that the first piezoelectric element 122 does not vibrate at high frequencies. disturbed.
  • the shape of the first friction member 123 can be cylindrical, semi-cylindrical, spherical, triangular cone or other irregular shapes.
  • the surface of the first friction member 123 can be chamfered or rounded.
  • the material of the first friction member 123 can be selected from wear-resistant materials such as alumina (Al2O3), silicon oxide (SiO2), zirconia (ZrO2) or carbon fiber, polyester fiber, aluminum, iron, copper, stainless steel, etc., which can ensure piezoelectricity
  • the driving force of the module can be well transmitted to the functional components, and at the same time, it can prevent wear and tear under long-term work and maintain matching accuracy.
  • the number of the first friction member 123 can be one or more.
  • the material of the first friction member 123 may be, but not limited to, wear-resistant materials such as ceramics.
  • the shape of the first friction member 123 can be, but not limited to, a rectangle, an ellipse, a sphere, a circle, and the like.
  • the first piezoelectric element 122 is a piezoelectric material, and the piezoelectric material has the following characteristics: when the piezoelectric material is deformed by an external force along a certain direction, a polarization phenomenon will occur inside it, and at the same time The positive and negative charges appear on the opposite surface, and when the external force is removed, it will return to the uncharged state. On the contrary, when an electric field is applied in the polarization direction of the piezoelectric material, the piezoelectric material will be deformed, and when the electric field is removed, the deformation of the piezoelectric material will disappear.
  • the first piezoelectric element 122 may be, but not limited to, piezoelectric ceramics.
  • the shape of the first piezoelectric element 122 may be, but not limited to, a rectangle or the like.
  • the first friction element 123 will move accordingly. Since the first friction member 123 is in contact with the functional component 40 , the first friction member 123 will drive the functional component 40 to move.
  • the voltage can be controlled to restore the first piezoelectric element 122 to its original shape (the first friction element 123 also returns to its original position), while the functional component 40 remains stationary due to inertia. By repeating the above process, the functional component 40 can be driven to generate a large displacement in the moving direction.
  • the first piezoelectric element 122 can be controlled to be in a high-frequency deformation state. Get a larger displacement.
  • the functional component 40 can realize reciprocating motion (forward motion and reverse motion) by controlling the voltage.
  • a camera module on a mobile phone usually uses a voice coil motor to drive the lens.
  • the voice coil motor is mainly composed of a coil and a magnet.
  • One of the coil and the magnet is installed on the lens, and drives the lens to reciprocate through the action of a magnetic field to achieve zooming.
  • higher requirements are placed on the driving force, travel, precision, and volume of motors.
  • Voice coil motors have gradually been unable to meet these new requirements. Specifically, since the voice coil motor drives the lens through the action of a magnetic field, the voice coil motor is easily interfered by other magnetic devices in the mobile phone. Both the coil and the magnet are set around the lens, so they take up a lot of space. During the zooming process, the coil and the magnetic steel will move relatively, and the strength of the magnetic field will change accordingly. Therefore, the driving accuracy of the voice coil motor cannot be achieved very high, and the lens can only achieve a small stroke.
  • the provided camera module 100 drives the functional component 40 through the first piezoelectric module 12, and the first piezoelectric module 12 includes a first force application member 121, a first piezoelectric member 122, a second A friction member 123 .
  • the first piezoelectric element 122 when the first piezoelectric element 122 is energized, the first piezoelectric element 122 will be deformed, and the first friction element 123 will move accordingly, because the first friction element 123 abuts against the The functional component 40 , therefore, the functional component 40 will follow the movement of the first friction member 123 .
  • the first piezoelectric element 122 drives the functional component 40 to move through deformation, its driving force is greater and will not be interfered by other devices.
  • the first friction member 123 drives the functional assembly 40 to move through the abutting relationship, as long as the first friction member 123 can form an abutting relationship with the functional assembly 40, it can drive the functional assembly 40 to move, therefore, the function can be made Assembly 40 achieves a greater range of motion.
  • the deformation of the first piezoelectric element 122 is small each time, and the displacement of the functional component 40 is correspondingly small each time.
  • the first piezoelectric module 12 only needs to be disposed on one side of the functional component 40 without surrounding the functional component 40 , thereby occupying less space. Therefore, the above design can significantly improve the quality of the camera module.
  • the camera module 100 provided in this application can be applied to, but not limited to, a reed camera module, a guide rod camera module, and a guide rod + ball camera module.
  • the functional component 40 includes a functional device 41 and a carrier frame 42 .
  • the carrier frame 42 is sleeved on the outer periphery of the functional device 41 and carried on the first bearing seat 11.
  • the carrier frame 42 is used to abut against the first friction member 123 of the first piezoelectric module 12 .
  • the camera module 100 also includes a photosensitive element 50 .
  • the photosensitive element 50 is arranged opposite to the functional device 41 . When the first piezoelectric module 12 is powered on, the functional device 41 will move relative to the photosensitive element 50 .
  • the functional device 41 is a lens.
  • the lens is used to collect and focus light
  • the lens may include a lens barrel and a lens group, and the lens group is arranged in the lens barrel.
  • the carrier frame 42 is sleeved on the outer periphery of the lens barrel and carried on the first bearing seat 11 , so that the entire functional component 40 is carried on the first bearing seat 11 .
  • the photosensitive element 50 is used to receive light from the lens and convert the light signal into an electrical signal.
  • the first bearing seat 11 is provided with a light-transmitting hole W, and the light-transmitting hole W communicates with the first space X1 and penetrates through the first bearing seat 11 .
  • the lens group in the lens and the photosensitive element 50 are both facing the light transmission hole W.
  • the lens When the first piezoelectric module 12 is powered on, the lens will move relative to the photosensitive element 50, so that the camera module can have a zoom function or an anti-shake function, wherein the zoom function and the anti-shake function represent that the direction of movement of the lens relative to the photosensitive element 50 is different. The same will be described in detail later.
  • the first force application member 121 includes a force application portion 1211 and at least one connection portion 1212 .
  • the force applying portion 1211 is connected to the connecting portion 1212 .
  • the connecting portion 1212 is connected to the first bearing seat 11
  • the force applying portion 1211 is connected to the first piezoelectric element 122
  • the force applying portion 1211 is used to make the first friction element 123 abut against the functional component 40 , that is to say, the force application portion 1211 is used to provide the first friction member 123 with an force to abut against the functional component 40 (the dotted arrow in FIG. 7 is the force direction).
  • the first force applying member 121 can be made into a sheet shape (such as an elastic sheet), so as to facilitate reducing the size of the functional component 40 . It should be noted that, the following content of this application is only described as an example based on the fact that the first force applying member 121 is in the form of a sheet.
  • the force application portion 1211 has an opening K, and the opening K passes through the force application portion 1211 .
  • a side of the first piezoelectric element 122 facing away from the first friction element 123 is at least partially exposed through the opening K. It can be understood that setting the opening K can reduce the rigidity of the force application part 1211 , thereby improving the deformability of the force application part 1211 , so that the force application part 1211 can more effectively provide the abutment function component to the first friction member 123 40 force.
  • the first force application member 121 is elastic, and the opposite ends of the first force application member 121 abut against the first piezoelectric member 122 and the first bearing Seat 11, and elastic compression. That is to say, one end of the first force applying member 121 abuts against the side of the first bearing seat 11 facing the functional component 40 , and the other end abuts against the side of the first piezoelectric member 122 facing away from the first friction member 123 , And the first force application member 121 is in a compressed state, so that the first friction member 123 abuts against the functional component 40 .
  • the first urging member 121 may be, but not limited to, a spring, and the first urging member 121 may also be made of elastic materials such as rubber and silica gel.
  • the approximate shape of the first force applying member 121 may be, but not limited to, a cylinder, a rectangular column, and the like.
  • first force applying member 121 may also be in other feasible implementation forms, which will not be detailed here.
  • the first carrier 11 is provided with a receiving space Y1 , the receiving space Y1 communicates with the first space X1 , and the first piezoelectric module 12 is at least partially disposed in the receiving space Y1 .
  • the accommodating space Y1 may or may not pass through the first bearing seat 11 . It can be understood that the arrangement of the first piezoelectric module 12 in the accommodation space Y1 can reduce the space occupied, so that the functional component 40 can be designed to be larger, and from another perspective, the camera module can also be reduced 100, thereby reducing the space occupied by the camera module 100 in the electronic device 1.
  • the storage space Y1 includes a first sub-storage space Y11 and a second sub-storage space Y12.
  • the first sub-accommodating space Y11 communicates with the first space X1.
  • the second sub-accommodating space Y12 is disposed on a side of the first bearing seat 11 away from the first space X1 and communicates with the first sub-accommodating space Y11 .
  • the first sub-accommodating space Y11 is used for accommodating at least part of the first piezoelectric element 122 .
  • the second sub-accommodating space Y12 is used for accommodating at least part of the first forcing member 121 .
  • the first piezoelectric element 122 and the first urging element 121 are disposed in the first sub-accommodating space Y11 and the second sub-accommodating space Y12, so that the first piezoelectric element 122 and the first urging element 121 are hidden.
  • the space occupied by the first bearing seat 11 can be reduced, so that the arrangement of the camera module 100 can be more compact, and it can also reduce the damage of the first piezoelectric element 122 and the first force applying element 121 by foreign objects. possibility.
  • a concave groove Z is provided on the side of the functional component 40 facing the first piezoelectric module 12 .
  • the first friction member 123 is at least partially accommodated in the concave groove Z and abuts against the bottom wall of the concave groove Z.
  • Such arrangement can reduce the radial size of the first bearing seat 11 , thereby reducing the volume of the camera module 100 . From another point of view, it is also possible to make the functional component 40 closer to the edge of the first bearing seat 11 , so as to arrange it more compactly.
  • the contact type between the first friction member 123 and the functional component 40 is a surface-to-surface contact, or a point-to-surface contact. It can be understood that the surface-to-surface contact form can form a greater frictional force, which is more conducive to pushing the functional component 40 .
  • the first force applying member 121 is bonded to the first piezoelectric member 122 .
  • the bonding operation is relatively simple, and the first force application member 121 and the first piezoelectric member 122 can be easily connected to form a connection effect, thereby avoiding designing a complicated connection structure.
  • the use of bonding can save costs.
  • the bonding medium of the first force applying member 121 and the first piezoelectric member 122 may be, but not limited to, glue or double-sided tape.
  • the functional component 40 is driven by the first piezoelectric module 12 to move along a first direction d1 , or move along a second direction d2 , or move along a third direction d3 .
  • Two pairs of the first direction d1 , the second direction d2 and the third direction d3 are perpendicular to each other. That is to say, the manufacturer can design the functional component 40 to move in any one of the first direction d1, the second direction d2, and the third direction d3 according to actual needs, and these three directions are different directions .
  • the first piezoelectric module 12 can be used to realize the zoom function of the camera module, or to realize the anti-shake function of the camera module.
  • the first piezoelectric module 12 is used to drive the functional component 40 to move along the first direction d1.
  • the first piezoelectric module 12 is used to drive the functional component 40 to move along the second direction d2.
  • the first piezoelectric module 12 is used to drive the functional component 40 to move along the third direction d3.
  • the first piezoelectric module 12 is used to realize the zoom function of the camera module.
  • the functional component 40 has a first end surface D1 and a second end surface D2 disposed opposite to each other.
  • the first end surface D1 abuts against the first bearing seat 11 .
  • the relative direction of the first end surface D1 and the second end surface D2 is a third direction d3.
  • the first piezoelectric module 12 can drive the functional component 40 to move along the third direction d3.
  • the relative direction of the first end surface D1 and the second end surface D2 refers to: the direction of the first end surface D1 towards the second end surface D2, and the direction of the second end surface D2 towards the first end surface D1.
  • the third direction d3 is the optical axis direction of the camera module, and the functional device 41 (lens) moves along the optical axis direction, and the distance between the functional device 41 and the photosensitive element 50 will change, thereby realizing focusing .
  • the first piezoelectric module 12 is used to realize the anti-shake function of the camera module. It should be noted that the following embodiments are illustrated based on the camera module 100 shown in FIG. 14 to FIG. 15 .
  • the functional component 40 has a first side M1 , a second side M2 and a third side M3 .
  • the first side M1 and the third side M3 are disposed opposite to each other, and the opposite direction is a first direction d1.
  • the opposing direction of the first side M1 and the third side M3 refers to: the direction of the first side M1 towards the third side M3, and the direction of the third side M3 towards the first side M1.
  • the first piezoelectric module 12 abuts against the second side surface M2.
  • opposite sides of the functional component 40 are spaced apart from the first bearing seat 11 . That is to say, both the first side M1 and the third side M3 are spaced apart from the sidewall of the first bearing seat 11 .
  • the first piezoelectric module 12 can drive the functional component 40 to move along the first direction d1. That is, the functional component 40 can move along the direction of the first side M1 toward the third side M3, and can also move along the direction of the third side M3 toward the first side M1, so that the camera module can realize anti-corrosion in the first direction d1. shake.
  • the distance between the functional component 40 and the first bearing seat 11 is 0 mm ⁇ 1 mm. Further optionally, in the first direction d1, the distance between the functional component 40 and the first bearing seat 11 is 0.25 mm.
  • the first bearing seat 11 includes a first bottom plate portion 111 and a first frame portion 112 surrounding and connected to the periphery of the first bottom plate portion 111 .
  • the first bottom plate portion 111 and the first frame portion 112 jointly define the first space X1.
  • the first bottom plate portion 111 is used to carry the functional component 40 .
  • the first frame portion 112 is used to carry the first piezoelectric module 12 .
  • the first bottom plate portion 111 is provided with a light-transmitting hole W, and the functional device 41 (lens) and the photosensitive element 50 are all facing the light-transmitting hole W, so that the light from the functional device 41 can pass through the light-transmitting hole W and then irradiate to photosensitive element 50 .
  • the first frame part 112 is provided with a receiving space Y1 , and the first piezoelectric module 12 is at least partially disposed in the receiving space Y1 .
  • the receiving space Y1 runs through the first frame portion 112 , and the first piezoelectric element 122 is at least partially disposed in the receiving space Y1 .
  • the first friction member 123 and the first force applying member 121 are connected to opposite ends of the first piezoelectric member 122 .
  • the first forcing member 121 is disposed on a side of the first frame portion 112 away from the functional component 40 and connected to the first frame portion 112 .
  • the first base assembly 10 further includes a first rolling body 13 .
  • the first rolling body 13 is disposed on a side of the functional component 40 away from the first piezoelectric module 12 , and movably abuts against the first frame portion 112 and the functional component 40 .
  • the first piezoelectric module 12 when the first piezoelectric module 12 is energized, since the functional component 40 will move relative to the first frame portion 112 of the first bearing seat 11, if the functional component 40 is in direct contact with the first frame portion 112, there will be a Sliding friction with high resistance will lead to serious wear after a period of time, and then the first friction member 123 cannot be tightly abutted against the functional component 40 , and the power consumption will be increased due to high resistance.
  • the first rolling body 13 is provided between the functional component 40 and the first frame part 112, so that the rolling friction between the first frame part 112, the first rolling body 13 and the functional component 40 can be achieved. This can not only reduce wear, but also save electricity, and make the movement process smoother.
  • the first rolling body 13 is a sphere or a cylinder.
  • the functional component 40 and/or the first frame part 112 is provided with a first groove C1, and the first rolling body 13 is movably arranged in the first groove C1 .
  • the first groove C1 can be provided on the functional component 40 or on the first frame portion 112 , or both the functional component 40 and the first frame portion 112 can be provided with the first groove C1 .
  • the first rolling element 13 accommodated in the first groove C1 can reduce the gap between the functional component 40 and the first frame portion 112 , so that the entire camera module 100 can be arranged more compactly.
  • the second rolling body 14 is provided between the functional component 40 and the first bottom plate portion 111, so that the first bottom plate portion 111, the second rolling body 14, and the functional component 40 have rolling friction, This can not only reduce wear, but also save electricity, and make the movement process smoother.
  • the second rolling body 14 is a sphere or a cylinder.
  • the functional component 40 and/or the first bottom plate portion 111 is provided with a second groove C2, and the second rolling body 14 is disposed in the second groove C2.
  • the second groove C2 can be set on the functional component 40 or on the first bottom plate portion 111 , or the second groove C2 can be set on both the functional component 40 and the first bottom plate portion 111 .
  • the second rolling element 14 accommodated in the second groove C2 can reduce the gap between the functional component 40 and the first bottom plate portion 111 , so that the entire camera module 100 can be arranged more compactly.
  • the camera module 100 further includes a second base assembly 20 .
  • the second base assembly 20 includes a second carrier 21 and a second piezoelectric module 22 carried on the second carrier 21 .
  • the second base component 20 has a second space X2 for accommodating the first base component 10 . That is to say, the first base component 10 and the functional component 40 are accommodated in the second space X2 together.
  • the functional component 40 also has a fourth side M4, the fourth side M4 is disposed opposite to the second side M2 and the opposite direction is the second direction d2.
  • the opposing direction of the fourth side M4 and the second side M2 refers to: the direction of the fourth side M4 towards the second side M2, and the direction of the second side M2 towards the fourth side M4.
  • the second piezoelectric module 22 faces the first side M1 or the third side M3 (in this embodiment, the second piezoelectric module 22 faces the first side M1 ).
  • the second piezoelectric module 22 abuts against the first frame portion 112 and is used to drive the first base component 10 to drive the functional component 40 to move along the second direction d2. That is, the functional component 40 can move along the direction of the fourth side M4 toward the second side M2, and can also move along the direction of the second side M2 toward the fourth side M4, so that the camera module can realize anti-corrosion in the second direction d2. shake.
  • the distance between the first bearing seat 11 and the second bearing seat 21 is 0 mm ⁇ 1 mm. Further optionally, in the second direction d2, the distance between the first bearing seat 11 and the second bearing seat 21 is 0.25 mm.
  • the second bearing seat 21 includes a second bottom plate portion 211 and a second frame portion 212 surrounding and connected to the periphery of the second bottom plate portion 211 .
  • the second bottom plate portion 211 and the second frame portion 212 jointly define the second space X2.
  • the second bottom plate portion 211 is used for supporting the first bearing seat 11 .
  • the second frame portion 212 is used to carry the second piezoelectric module 22 .
  • the second bottom plate portion 211 is provided with a light-transmitting hole W, and the functional device 41 (lens) and the photosensitive element 50 are all facing the light-transmitting hole W, so that the light from the functional device 41 can pass through the light-transmitting hole W and then irradiate to photosensitive element 50 .
  • the second frame portion 212 is provided with a first relief space R1 , and the first relief space R1 is facing the first piezoelectric module 12 .
  • the first clearance space R1 is used for accommodating the first piezoelectric module 12 .
  • Such setting can prevent the first piezoelectric module 12 from colliding with the second frame portion 212 during movement, thereby further reducing the distance between the first frame portion 112 and the second frame portion 212, making the camera module 100 more compact .
  • the first relief space R1 runs through the second frame portion 212 .
  • the second piezoelectric module 22 includes a second force applying member 221 , a second piezoelectric member 222 and a second friction member 223 connected in sequence.
  • the second force applying member 221 is connected to the second bearing seat 21 and is used for abutting the second friction member 223 against the first frame portion 112 .
  • the second piezoelectric element 222 When the second piezoelectric element 222 is energized, the second piezoelectric element 222 will be deformed, and the second piezoelectric element 222 can drive the first bearing seat 11 to the second through the second friction element 223 . Movement in direction d2. It can be understood that the movement of the first bearing seat 11 means that the functional component 40 will also move in the second direction d2, so that the camera module can achieve anti-shake in the second direction d2.
  • the second piezoelectric module 22 may be identical to or different from the first piezoelectric module 12 .
  • the shape, material, connection relationship, etc. of the second force applying member 221, the second piezoelectric member 222 and the second friction member 223, please refer to the previous relevant information on the first force applying member 121, the first piezoelectric member 122 and the first friction member 223.
  • the description of the friction member 123 will not be described in detail here.
  • an accommodating space Y2 is provided on the second frame portion 212 , and the second piezoelectric module 22 is at least partially disposed in the accommodating space Y2 . Further, the accommodating space Y2 runs through the second frame portion 212 , and the second piezoelectric element 222 is at least partially disposed in the accommodating space Y2 .
  • the second friction member 223 and the second force applying member 221 are connected to opposite ends of the second piezoelectric member 222 .
  • the second forcing member 221 is disposed on a side of the second frame portion 212 away from the functional component 40 and connected to the second frame portion 212 .
  • the second base assembly 20 further includes a third rolling body 23 .
  • the third rolling body 23 is disposed on a side of the first frame portion 112 facing away from the second piezoelectric module 22 , and movably abuts against the second frame portion 212 and the first frame portion 112 . It can be understood that the third rolling body 23 is provided between the first frame part 112 and the second frame part 212, so that the second frame part 212, the third rolling body 23, and the first frame part 112 can For rolling friction, this can not only reduce wear, but also save electricity, and make the movement process smoother.
  • the third rolling body 23 is a sphere or a cylinder.
  • the first frame portion 112 and/or the second frame portion 212 are provided with a third groove C3, and the third rolling element 23 is movably disposed in the third groove C3.
  • the third groove C3 can be provided on the first frame portion 112, or on the second frame portion 212, or both the first frame portion 112 and the second frame portion 212 can be provided with the third groove C3.
  • the second base assembly 20 further includes a fourth rolling body 24, the fourth rolling body 24 is arranged between the second bottom plate portion 211 and the first bottom plate portion 111, and is movable It abuts against the second bottom plate portion 211 and the first bottom plate portion 111 .
  • the fourth rolling body 24 is provided between the first bottom plate portion 111 and the second bottom plate portion 211, so that the second bottom plate portion 211, the fourth rolling body 24, and the first bottom plate portion 111 can For rolling friction, this can not only reduce wear, but also save electricity, and make the movement process smoother.
  • the fourth rolling body 24 is a sphere or a cylinder.
  • the first bottom plate portion 111 and/or the second bottom plate portion 211 is provided with a fourth groove C4, and the fourth rolling element 24 is disposed in the fourth groove C4.
  • the fourth groove C4 can be provided on the first bottom plate portion 111 or on the second bottom plate portion 211 , or both the first bottom plate portion 111 and the second bottom plate portion 211 can be provided with the fourth groove C4.
  • Four-groove C4 It can be understood that the fourth rolling element 24 accommodated in the fourth groove C4 can reduce the gap between the first bottom plate portion 111 and the second bottom plate portion 211 , thereby making the entire camera module 100 more compact.
  • the camera module 100 further includes a third base assembly 30 , and the third base assembly 30 includes a third bearing seat 31 and a third bearing seat 31 .
  • Piezoelectric module 32 .
  • the third base component 30 has a third space X3.
  • the third space X3 is used for accommodating the second base assembly 20 .
  • the functional component 40 has a first end face D1 and a second end face D2 arranged opposite to each other.
  • the first end surface D1 abuts against the first bearing seat 11 .
  • the relative direction of the first end surface D1 and the second end surface D2 is a third direction d3.
  • the third piezoelectric module 32 is used to drive the second base component 20 to drive the functional component 40 to move along the third direction d3.
  • the functional component 40 can move along the direction of the first end surface D1 toward the second end surface D2, and can also move along the direction of the second end surface D2 toward the first end surface D1, so that the camera module can move in the third direction d3 Achieve zoom.
  • the third piezoelectric module 32 may face any one of the first side M1 , the second side M2 , the third side M3 and the fourth side M4 .
  • the third bearing seat 31 includes a third bottom plate portion 311 and a third frame portion 312 surrounding and connected to the periphery of the third bottom plate portion 311 .
  • the third bottom plate portion 311 and the third frame portion 312 jointly define the third space X3.
  • the third bottom plate portion 311 is used for supporting the second bearing seat 21 .
  • the third frame portion 312 is used to carry the third piezoelectric module 32 .
  • the third bottom plate part 311 is provided with a light-transmitting hole W, and the functional device 41 (lens) and the photosensitive element 50 are all facing the light-transmitting hole W, so that the light from the functional device 41 can pass through the light-transmitting hole W and then irradiate to photosensitive element 50 .
  • the third piezoelectric module 32 includes a third force application member 321 , a third piezoelectric member 322 and a third friction member 323 connected in sequence.
  • the third force applying member 321 is connected to the third bearing seat 31 and is used for abutting the third friction member 323 against the second frame portion 212 .
  • the third piezoelectric element 322 When the third piezoelectric element 322 is energized, the third piezoelectric element 322 will be deformed, and the third piezoelectric element 322 can drive the second bearing seat 21 to the third through the third friction element 323 . Movement in direction d3. It can be understood that the movement of the second bearing seat 21 means that the functional component 40 will also move in the third direction d3, so that the camera module can realize zooming in the third direction d3.
  • the third piezoelectric module 32 may be identical to or different from the first piezoelectric module 12 .
  • the shape, material, connection relationship, etc. of the third force applying member 321, the third piezoelectric member 322 and the third friction member 323, please refer to the previous relevant information about the first force applying member 121, the first piezoelectric member 122 and the first friction member 323.
  • the description of the friction member 123 will not be described in detail here.
  • the third base assembly 30 further includes a fifth rolling body 33 .
  • the fifth rolling element 33 is disposed on a side of the second frame portion 212 away from the third piezoelectric module 32 , and movably abuts against the third frame portion 312 and the second frame portion 212 .
  • the fifth rolling body 33 is provided between the second frame part 212 and the third frame part 312, so that the third frame part 312, the fifth rolling body 33, and the second frame part 212 can For rolling friction, this can not only reduce wear, but also save electricity, and make the movement process smoother.
  • the second frame portion 212 and/or the third frame portion 312 is provided with a fifth groove C5, and the fifth rolling element 33 is movably disposed in the fifth groove C5.
  • the fifth groove C5 can be provided on the second frame part 212, or can be provided on the third frame part 312, or both the second frame part 212 and the third frame part 312 can be provided with the fifth groove C5.
  • Five-groove C5. It can be understood that, the fifth rolling element 33 accommodated in the fifth groove C5 can reduce the gap between the second frame part 212 and the third frame part 312 , so that the whole camera module 100 can be arranged more compactly.
  • the camera module 100 further includes a limiting member 60, and the limiting member 60 abuts against the functional component 40 along the direction from the second end surface D2 toward the first end surface D1.
  • the first bearing seat 11 , the second bearing seat 21 , and the limiting member 60 is connected to the second bearing seat 21 .
  • Such setting can prevent the functional component 40, the first bearing seat 11 and the second bearing seat 21 from moving relative to each other in the third direction d3, otherwise the functional component 40, the first bearing seat 11 and the second bearing seat 21 may move along the third direction d3.
  • the three directions d3 fall off each other.
  • the limiting member 60 includes a limiting portion 61 and a plurality of lugs 62 , the plurality of lugs 62 are arranged at intervals and are all bent and connected to the limiting portion 61 perimeter.
  • the limiting portion 61 abuts against the functional component 40, the first bearing seat 11, and the second bearing seat 21 along the direction from the second end surface D2 toward the first end surface D1.
  • the plurality of lugs 62 are connected to the sidewall of the bearing seat, in other words, the lugs 62 are connected to the second frame portion 212 .
  • the camera module 100 further includes an outer cover 70 .
  • the outer cover 70 includes a cover portion 71 and a frame portion 72 bent and connected to a periphery of the cover portion 71 .
  • the cover portion 71 covers the third space X3 along the direction from the second end surface D2 toward the first end surface D1 .
  • the frame portion 72 surrounds the outer periphery of the third base component 30 .
  • the camera module 100 includes a functional component 40 and a first base component 10 for driving the functional component 40 .
  • the first base assembly 10 includes a first bearing seat 11 and a first piezoelectric module 12 .
  • the first bearing seat 11 has a first space X1 for accommodating the functional component 40 .
  • the first piezoelectric module 12 is carried on the first carrier 11 .
  • the first bearing seat 11 includes a first bottom plate portion 111 and a first frame portion 112 surrounding and connected to the periphery of the first bottom plate portion 111 .
  • the first bottom plate portion 111 and the first frame portion 112 jointly define the first space X1.
  • the first frame portion 112 is substantially ring-shaped, and when the functional component 40 is disposed in the first space X1 , the first frame portion 112 surrounds the functional component 40 .
  • the first piezoelectric module 12 is carried on the first frame portion 112 and faces the functional component 40 to abut against the functional component 40 .
  • the first piezoelectric module 12 includes a first friction member 123 , a first piezoelectric member 122 , and a first force applying member 121 .
  • the first force application member 121 faces the functional component 40 .
  • the first piezoelectric element 122 is connected to a side of the first force applying element 121 facing the functional component 40 .
  • the first friction member 123 is connected to the first piezoelectric member 122 and abuts against the functional component 40 .
  • the first piezoelectric element 122 is used to drive the first friction element 123 to drive the functional component 40 to move relative to the first bearing seat 11 when electrified.
  • the first piezoelectric module 12 needs to drive the functional component 40 to move, an appropriate friction force is required between the two, and the friction force is related to the positive pressure between the two, and the positive pressure is the preload Force, also known as pre-pressure. That is to say, the first piezoelectric module 12 needs to apply sufficient pre-tightening force to the functional component 40 to ensure that the functional component 40 can be driven by the piezoelectric module.
  • the first base component 10 further includes an adjustment component 15 , and the adjustment component 15 includes a side of the first frame portion 112 away from the functional component 40 .
  • the first adjusting member 151 is directly or indirectly connected to the first force applying member 121 and the first frame portion 112 .
  • the first adjusting member 151 makes the pretightening force applied by the first piezoelectric module 12 to the functional component 40 reach a preset value through the first force applying member 121 .
  • the first adjusting member 151 applies a force to the first piezoelectric module 12 , and the force is then transmitted from the first piezoelectric module 12 to the functional component 40 , thereby ensuring the relationship between the first piezoelectric module 12 and the functional component 40 .
  • the pre-tightening force between reaches the preset value.
  • the direction of the pretightening force is the direction in which the first friction member 123 faces the functional component 40 .
  • first regulating member 151 is directly or indirectly connected to the first force applying member 121 and the first frame portion 112 means that the first regulating member 151 is directly or indirectly connected to the The first forcing member 121 and the first adjusting member 151 are directly or indirectly connected to the first frame portion 112 .
  • the direct and indirect connection relationship between the first adjusting member 151 and the first frame portion 112 is used for illustration: the first adjusting member 151 may be directly connected to the first frame portion 112 or may be indirectly connected to the first frame portion 112 .
  • the so-called direct connection refers to the direct contact between the first regulating member 151 and the first frame portion 112 .
  • the first force application member 121 includes a force application portion 1211 and at least one connection portion 1212 that are connected.
  • the force applying portion 1211 is connected to the first piezoelectric element 122 .
  • the connecting portion 1212 is disposed on a side of the first frame portion 112 away from the functional component 40 and spaced apart from the first frame portion 112 .
  • the connecting portion 1212 is connected to the first adjusting member 151, and the first adjusting member 151 is used to adjust the distance between the connecting portion 1212 and the first frame portion 112 (hereinafter referred to as the first interval distance).
  • the bending curvature of the first force applying member 121 can be adjusted through the first adjusting member 151 To adjust the pre-tightening force, and the change of the bending curvature is realized by adjusting the first interval distance, so that the pre-tightening force reaches the required preset value.
  • the number of connecting parts 1212 may be one or multiple, and so-called multiple means that the number is greater than or equal to two.
  • the number of the first adjusting parts 151 is the same as the number of the connecting parts 1212 , and each first adjusting part 151 is correspondingly connected to one connecting part 1212 .
  • the first force application member 121 includes two connecting parts 1212, and the two connection parts 1212 are respectively connected to opposite ends of the force application part 1211. Each connection part 1212 is respectively connected to a different The first adjusting member 151 is used to balance the force of the first force applying member 121 .
  • the side of the force applying portion 1211 facing away from the functional component 40 is provided with a first raised portion T1, and the first frame portion 112 is facing away from the functional component 40
  • a second raised portion T2 is provided on one side of the second raised portion T2, and the second raised portion T2 is closer to the functional component 40 than the first raised portion T1.
  • the first adjusting member 151 is a bendable pull wire (also referred to as drawing wire), and the opposite ends of the first adjusting member 151 are wound around the first raised portion T1 and the second raised portion respectively. Start on T2.
  • the first adjustment member 151 Since the second protrusion T2 is closer to the functional component 40 than the first protrusion T1, the first adjustment member 151 will be in an inclined state, so that the first adjustment member 151 acts on the force of the first force applying member 121. At least part of the force component is directed towards the functional component 40 , so that the first piezoelectric module 12 can press the functional component 40 .
  • the pre-tightening force can be adjusted to a preset value by adjusting the length of the cable between the first raised portion T1 and the second raised portion T2.
  • the first adjustment member 151 has external threads
  • the first adjustment hole K2 has internal threads
  • the external threads and the internal threads can be screwed together.
  • the first adjustment member 151 includes a head and a rod, wherein the rod has an external thread, is passed through the first through hole K1 and the first adjustment hole K2, and is threadedly engaged with the first adjustment hole K2.
  • the outer diameter of the head portion is larger than the diameter of the first via hole K1 , and is located on a side of the connecting portion 1212 away from the first frame portion 112 . It can be understood that, due to the large outer diameter of the head, it cannot pass through the first via hole K1.
  • the head When the rod part gradually penetrates into the first adjustment hole K2, the head will force the connecting part 1212 to gradually approach the first frame part 112 (that is, the first spacing distance changes), so the curvature of the connecting part 1212 changes, thereby realizing the pre-tightening force adjustment so that the preload finally reaches the preset value.
  • the first adjusting member 151 is a boss protruding from the side of the first frame portion 112 away from the functional component 40 .
  • the connecting portion 1212 has a first through hole K1 , and the first through hole K1 is disposed corresponding to the first adjusting member 151 .
  • the first adjusting member 151 passes through the first via hole K1.
  • the end of the first adjusting member 151 away from the functional component 40 is connected to the connecting portion 1212 by heat riveting, welding or bonding.
  • the reserved length of the first adjustment member 151 between the connecting portion 1212 and the first frame portion 112 determines the size of the pre-tightening force, the larger the reserved length, the smaller the pre-tightening force, on the contrary, the reserved length The smaller the length, the greater the preload.
  • the first adjusting member 151 is a boss protruding from the side of the first frame portion 112 away from the functional component 40, and the first adjusting member 151 has external thread.
  • the connecting portion 1212 has a first through hole K1 , and the first through hole K1 is disposed corresponding to the first adjusting member 151 .
  • the first adjusting member 151 passes through the first via hole K1.
  • the adjustment assembly 15 further includes a nut 156 with an internal thread, and the outer diameter of the nut 156 is larger than the diameter of the first through hole K1.
  • the nut 156 is threadedly connected to the first adjusting member 151 , that is, the inner thread of the nut 156 is screwed together with the outer thread of the first adjusting member 151 . And the nut 156 is located on the side of the connecting portion 1212 away from the side of the first frame portion 112 away from the functional component 40 .
  • the reserved length of the first adjustment member 151 between the connecting part 1212 and the first frame part 112 can be adjusted by adjusting the position of the nut 156. The larger the reserved length, the smaller the pre-tightening force, and vice versa. The smaller the reserved length, the greater the preload.
  • the first force application member 121 includes a connected force application portion 1211 and at least one connection portion 1212 , and the connection portion 1212 is connected to the first frame portion 112 .
  • the force applying portion 1211 is connected to the first piezoelectric element 122 .
  • the adjusting assembly 15 further includes a first bracket 152 , the first bracket 152 is disposed on a side of the first frame portion 112 away from the functional assembly 40 and opposite to the first force applying member 121 .
  • the first adjusting member 151 is screwed to the first bracket 152 , so that the first adjusting member 151 is indirectly connected to the first frame portion 112 through the first bracket 152 .
  • the first regulating member 151 passes through the first bracket 152 .
  • the first regulating member 151 abuts against a side of the force applying portion 1211 away from the functional component 40 .
  • the first bracket 152 includes a first fixing portion 1521 and two first supporting portions 1522 .
  • the first fixing portion 1521 is spaced apart from the first force applying member 121 .
  • the two first supporting parts 1522 are respectively bent and connected to opposite ends of the first fixing part 1521 .
  • An end of the first supporting part 1522 away from the first fixing part 1521 is connected to the first frame part 112 , so as to realize fixing the first bracket 152 on the first frame part 112 .
  • the first fixing part 1521 has a threaded hole, and the first adjusting part 151 has an external thread.
  • the first adjusting member 151 may be, but not limited to, a threaded member such as a screw, a screw, or a bolt.
  • the second adjusting member 153 is disposed on the side of the first frame portion 112 away from the functional component 40, and the second adjusting member 153 is directly or indirectly connected to the adjusting block 154 and the first frame Section 112.
  • the second adjusting member 153 is used to force the adjusting block 154 to abut against the functional component 40 directly or indirectly, so that the pre-tightening force applied by the first piezoelectric module 12 to the functional component 40 reaches default value. That is to say, the second adjusting member 153 applies a force to the adjusting block 154 , and the acting force makes the directly or indirectly adjusting block 154 abut against the functional component 40 , and the functional component 40 further compresses the first piezoelectric module 12 .
  • the force between the functional component 40 and the first piezoelectric module 12 is changed, thereby ensuring that the pretightening force between the first piezoelectric module 12 and the functional component 40 reaches default value.
  • the adjustment block 154 is provided with a third raised portion T3, and the side of the first frame portion 112 facing away from the functional component 40 is provided with a fourth raised portion T4, and the fourth protrusion T4 is closer to the functional component 40 than the third protrusion T3.
  • the second adjusting member 153 is a bendable pull wire (also referred to as a drawing wire), and opposite ends of the adjusting member are wound around the third raised portion T3 and the fourth raised portion T4 respectively. superior.
  • the second adjustment member 153 Since the fourth protrusion T4 is closer to the functional component 40 than the third protrusion T3, the second adjustment member 153 will be in an inclined state, so that the force exerted by the second adjustment member 153 on the adjustment block 154 At least part of the force component is directed towards the functional component 40 , so that the first piezoelectric module 12 can press the functional component 40 .
  • the pre-tightening force can be adjusted to a preset value by adjusting the length of the pull wire between the third protrusion T3 and the fourth protrusion T4.
  • the adjustment assembly 15 further includes a second bracket 155 , and the second bracket 155 is disposed on the side of the first frame portion 112 away from the functional assembly 40 , And set opposite to the adjustment block 154 .
  • the second adjusting member 153 is threadedly connected to the second bracket 155 and passes through the second bracket 155 , and the second adjusting member 153 abuts against a part of the adjusting block 154 facing away from the functional component 40 side.
  • the second bracket 155 includes a second fixing portion 1551 and two second supporting portions 1552 .
  • the second fixing portion 1551 is spaced apart from the first frame portion 112 .
  • the two second supporting parts 1552 are respectively bent and connected to opposite ends of the second fixing part 1551 .
  • An end of the second supporting part 1552 away from the second fixing part 1551 is connected to the first frame part 112 , so as to realize fixing the second bracket 155 on the first frame part 112 .
  • the second fixing part 1551 has a threaded hole, and the second adjusting part 153 has an external thread.
  • the second adjusting part 153 is screwed into the threaded hole on the second fixing part 1551 by threads, and is screwed together so that the second adjusting part 153 It is stably fixed on the second fixing part 1551 . Moreover, the second adjusting member 153 abuts against the side of the adjusting block 154 facing away from the functional component 40 after passing through the threaded hole. Since the second adjusting member 153 and the second fixing portion 1551 are screwed together, the position of the second adjusting member 153 relative to the functional component 40 can be adjusted.
  • the first base assembly 10 further includes a first rolling body 13, and the first rolling body 13 is arranged on the adjustment block 154 and the function between the components 40 and movably abuts against the functional component 40 and the regulating block 154 . It can be understood that, when the first piezoelectric module 12 is energized, since the functional component 40 will move relative to the adjustment block 154 of the first bearing seat 11, if the functional component 40 and the adjustment block 154 are in direct contact, a large resistance will be generated.
  • the first rolling body 13 is set between the functional component 40 and the adjusting block 154, so that the rolling friction between the adjusting block 154, the first rolling body 13 and the functional component 40 can be reduced. Less wear and tear can save power and make the movement process smoother.
  • the first force applying member 121 includes a first clamping portion 1213 , a second clamping portion 1214 , and a third clamping portion 1215 that are sequentially bent and connected.
  • the first clamping portion 1213 and the third clamping portion 1215 are oppositely disposed, and the second clamping portion 1214 faces the functional component 40 .
  • the first clamping part 1213 is protruded with a first protruding part TC1
  • the second clamping part 1214 is protruded with a second protruding part TC2
  • the third clamping part 1215 is protruded with a The third protrusion TC3.
  • the first protrusion TC1 and the third protrusion TC3 are used to clamp the first piezoelectric element 122 together.
  • the second protrusion TC2 is used to abut against the first piezoelectric element 122 so that the pre-tightening force applied by the first piezoelectric module 12 to the functional component 40 reaches a preset value.
  • the first force applying member 121 is substantially C-shaped, and the first piezoelectric member 122 is sandwiched in the C-shaped first force applying member 121 .
  • There are three protrusions on the first force application member 121 which are the first protrusion TC1 , the second protrusion TC2 , and the third protrusion TC3 .
  • the first protruding portion TC1 and the third protruding portion abut against opposite sides of the first piezoelectric element 122 respectively, so as to realize the fixing of the first piezoelectric element 122 and better exert the piezoelectric performance.
  • the second protrusion TC2 faces the functional component 40 and abuts against the first piezoelectric element 122.
  • the second protrusion TC2 is used to ensure that the first friction element 123 abuts against the functional component 40 to obtain a corresponding preload. force.
  • the pre-tightening force can be adjusted by adjusting the protrusion height of the second protrusion TC2, so that the pre-tightening force reaches a preset value.
  • the first urging member 121 is disposed in the receiving space Y1 , and the receiving space Y1 is a groove on the first frame portion 112 .
  • Such arrangement can make the first frame portion 112 have higher strength and not be easily damaged.
  • the first urging member 121 is disposed in the receiving space Y1 , and the receiving space Y1 passes through the first frame portion 112 .
  • the first bearing seat 11 further includes a first baffle part 113, the first baffle part 113 is disposed on the side of the first frame part 112 away from the functional component 40, and covers the accommodation space Y1 , and abut against the side of the second clamping portion 1214 away from the first piezoelectric element 122 , so as to ensure that the first friction element 123 abuts against the functional component 40 to obtain a corresponding pre-tightening force.
  • the pre-tightening force can also be adjusted by adjusting the force between the first baffle part 113 and the second clamping part 1214, and the adjustment method of the pre-tightening force is added.
  • the second baffle part It is a component independent of the first frame part 112 , so that the replacement of the first baffle part 113 can be facilitated, so that the pre-tightening force between the first friction member 123 and the functional component 40 can be adjusted at any time.
  • the first piezoelectric element 122 since the first piezoelectric element 122 is connected to the first force applying element 121 , the first piezoelectric element 122 will be constrained by the first force applying element 121 when vibrating. If the restraining effect of the first force application member 121 is too strong, the vibration amplitude of the first force application member 121 will be small, so that the functional assembly 40 cannot be driven well. At this time, the first force application member 121 can only be made Only larger vibration amplitude can be provided. However, the increase of the volume of the first force applying member 121 will lead to the increase of the volume of the camera module 100 .
  • the first force applying member 121 provides elastic constraints to the first piezoelectric member 122 .
  • the so-called elastic constraint means that the first force applying member 121 will produce corresponding elastic deformation due to the vibration of the first piezoelectric member 122, in other words, the restraining effect of the first force applying member 121 on the first piezoelectric member 122 Therefore, the vibration range of the first piezoelectric element 122 is larger, or in other words, the first piezoelectric element 122 has a larger vibration amplitude.
  • grooves or through holes are provided on the first force applying member 121 .
  • the shape of the groove and the through hole can be, but not limited to, circular, rectangular, elliptical and the like. Regardless of whether the groove or the through hole is provided, the rigidity of the first force application member 121 will be reduced, so that deformation is more likely to occur.
  • the volumetric first piezoelectric element 122 has a larger vibration amplitude.
  • the vibration of the first piezoelectric element 122 can be divided into two directions, including a first vibration direction and a second vibration direction, wherein the first vibration direction is parallel to the direction of the pre-tightening force, and the second vibration direction is parallel to the movement of the functional component 40 direction.
  • the increase of the vibration amplitude of the first piezoelectric element 122 in the first vibration direction can increase the pre-tightening force, thereby increasing the acceleration of the functional component 40 .
  • the increase of the amplitude of the first piezoelectric element 122 in the second vibration direction means that the first piezoelectric element 122 can drive the functional component 40 to move a larger displacement per unit time, that is, the functional component 40 moves faster . Therefore, it can be seen from the above analysis that after the first force applying member 121 is provided with a groove or a through hole, it can not only ensure that the first piezoelectric member 122 with a smaller volume has a larger vibration amplitude, but also make the functional component 40 Move faster to target position.
  • the first piezoelectric module 12 is used to drive the functional component 40 to move along the optical axis A, that is to say, the first piezoelectric module 12 is used to realize the zoom function of the camera module 100 .
  • the first base component 10 further includes a stabilizing component 16 , and the stabilizing component 16 is disposed on a side of the functional component 40 away from the first piezoelectric module 12 .
  • the stabilizing component 16 is used to stabilize the functional component 40 to prevent or weaken the tilting of the functional component 40 under the action of the first piezoelectric module 12 .
  • the functional component 40 when the first piezoelectric module 12 drives the functional component 40 to move along the direction of the optical axis A, the functional component 40 will be subjected to forces in two directions, including a first force F1 and a second force F2 .
  • the direction of F1 is the direction in which the first piezoelectric module 12 points to the stabilizing component 16 , that is, F1 is the pretightening force of the first piezoelectric module 12 on the functional component 40 .
  • F2 is parallel to the direction of the optical axis A, and is used to drive the functional component 40 to move along the direction of the optical axis A. It will be appreciated that F2 will create a moment which tends to tilt the functional assembly 40 .
  • the stabilizing component 16 provided in this embodiment is used to solve the tilting problem of the functional component 40, and two solutions are introduced below.
  • the stabilization assembly 16 includes a first magnetic member 161 and a second magnetic member 162 arranged at intervals, the first magnetic member 161 is carried on the first bearing base 11 , The second magnetic component 162 is carried on the functional component 40 .
  • the first magnetic piece 161 is used for magnetically attracting the second magnetic piece 162 . Therefore, the functional component 40 will receive the third force F3 from the first magnetic member 161 , and the direction of F3 is the same as the direction of F1 . Due to the introduction of F3, the force on the functional component 40 in this direction increases to F1+F3. Therefore, the resultant force of F1 , F2 , and F3 is more biased towards the direction of F1 , thereby weakening the effect of F2 to a certain extent, and further weakening the tilting problem of the functional component 40 .
  • the stabilizing component 16 is carried on the first bearing seat 11 and abuts against the functional component 40 .
  • the stabilizing component 16 is a piezoelectric module, and is used for cooperating with the first piezoelectric module 12 to drive the functional component 40 to move along the optical axis A through the inverse piezoelectric effect when energized.
  • the stabilizing component 16 will abut against the functional component 40 to generate a fourth force F4 on the functional component 40, that is, F4 is the pre-tightening force exerted by the stabilizing component 16 on the functional component 40, and the direction of F4 is the same as F1 goes in the opposite direction.
  • the stabilizing component 16 is a piezoelectric module. During the process of driving the functional component 40 to move along the optical axis A, the stabilizing component 16 applies a fifth force F5 to the functional component 40, and the direction of F5 is the same as that of F2. Therefore, the moment formed by F5 will balance the moment formed by F2, so that tilting of the functional assembly 40 can be avoided.
  • the camera module 100 will be introduced in the structural forms shown in Fig. 49 to Fig. 54 , and the structural features shown in Fig. 49 to Fig. 54 can also be combined into the previous embodiments if there is no conflict.
  • the camera module 100 includes a functional component 40 and a first base component 10 for driving the functional component 40 .
  • the first base assembly 10 includes a first bearing seat 11 and a first piezoelectric module 12 .
  • the first bearing seat 11 has a first space X1 for accommodating the functional component 40 .
  • the first piezoelectric module 12 is carried on the first carrier 11 .
  • the functional component 40 includes a functional device 41 , a carrier frame 42 and a friction plate 43 .
  • the functional device 41 is carried on the carrier frame 42 , and the functional device 41 can be matched with the carrier by, but not limited to, threaded, buckled or glued, and the functional device 41 can be a lens.
  • the friction plate 43 is fixed on the outer wall of the carrier frame 42 and abuts against the first piezoelectric module 12 .
  • the friction plate 43 is made of wear-resistant material, and the material selection can be the same as that of the first friction member 123 .
  • the first bearing seat 11 includes a first bottom plate portion 111 and a first frame portion 112 .
  • the first frame portion 112 is bent and connected to the peripheral edge of the first bottom plate portion 111 and forms the first space X1 together with the first bottom plate portion 111 .
  • the first bottom plate portion 111 is used for carrying the functional components 40 .
  • the first base assembly 10 further includes a first rolling body 13 .
  • the first rolling element 13 is disposed on a side of the carrier frame 42 away from the first piezoelectric assembly, and movably abuts against the carrier frame 42 and the first frame portion 112 .
  • the first rolling body 13 is used for rolling when the carrier frame 42 moves relative to the first frame portion 112 to reduce friction. If necessary, some lubricant can be added to the first rolling element 13 to further reduce the resistance.
  • the first rolling element 13 adopts balls that are slightly smaller in the middle and larger at both ends.
  • Both the carrier frame 42 and the first frame portion 112 are provided with a first groove C1, and two first grooves C1 are disposed opposite to each other, and the first rolling body 13 is disposed in the two first grooves C1.
  • one of the first grooves C1 is V-shaped, and the other first groove C1 is U-shaped, in order to avoid the risk of the first rolling element 13 being stuck due to tolerances.
  • the first piezoelectric module 12 includes a first friction member 123 , a first piezoelectric member 122 , and a first force applying member 121 .
  • the first forcing member 121 is connected to the first piezoelectric member 122 .
  • the first friction member 123 is connected to the first piezoelectric member 122 and abuts against the friction plate 43 .
  • the first piezoelectric element 122 is used to drive the first friction element 123 to drive the functional component 40 to move relative to the first bearing seat 11 when electrified.
  • the first frame portion 112 has a receiving space Y1, and the receiving space Y1 communicates with the first space X1.
  • the first piezoelectric element 122 and the first force applying element 121 are disposed in the accommodation space Y1.
  • the first frame portion 112 also has a through hole K4 , and the through hole K4 penetrates through the first frame portion 112 and communicates with the receiving space Y1 .
  • the first base assembly 10 further includes a first adjusting member 151 and an elastic adjusting member 157 .
  • the first adjusting member 151 has external threads, and the through hole K4 is a threaded hole, and the first adjusting member 151 is screwed into the through hole K4 through threads.
  • the elastic adjusting member 157 is disposed between the first adjusting member 151 and the first force applying member 121 , and opposite ends of the elastic adjusting member 157 abut against the first adjusting member 151 and the first force applying member 121 respectively.
  • the elastic adjusting member 157 has elasticity, and under the abutting action of the first adjusting member 151 , the elastic adjusting member 157 is in a compressed state, thereby providing elastic constraints to the first piezoelectric member 122 .
  • the positive pressure of the elastic adjusting member 157 on the first force applying member 121 can be changed by changing the depth of the first adjusting member 151 screwed into the through hole K4, so that the preload applied by the first friction member 123 to the functional assembly The force reaches the preset value.
  • the first adjusting member 151 may be, but not limited to, screws, screws, bolts and the like.
  • the elastic adjusting member 157 can be, but not limited to, be a spring.
  • the first force applying member 121 includes a first clamping portion 1213 , a second clamping portion 1214 , and a third clamping portion 1215 that are sequentially bent and connected.
  • the first clamping portion 1213 and the third clamping portion 1215 are oppositely disposed, and the second clamping portion 1214 faces the functional component 40 .
  • the first clamping part 1213 is protruded with a first protruding part TC1
  • the second clamping part 1214 is protruded with a second protruding part TC2
  • the third clamping part 1215 is protruded with a The third protrusion TC3.
  • the first protrusion TC1 and the third protrusion TC3 are used to clamp the first piezoelectric element 122 together.
  • the second protrusion TC2 is used to abut against the first piezoelectric element 122 so that the pre-tightening force applied by the first piezoelectric module 12 to the functional component 40 reaches a preset value.
  • the first piezoelectric element 122 simultaneously excites multiple modes during operation, so that the multiple modes are coupled. Specifically, after an alternating current signal of a certain frequency is applied to the first piezoelectric element 122 , the first piezoelectric element 122 simultaneously excites multiple modes.
  • the first piezoelectric element 122 generates micro-vibration and driving force by means of multiple modal couplings, and then converts multiple accumulated micro-vibrations into macroscopic linear motion of the functional component 40 through the first friction element 123, thereby realizing the driving function. It can be understood that the first piezoelectric element 122 excites multiple modes, and the multiple modes are coupled.
  • the first piezoelectric element 122 Compared with the first piezoelectric element 122 that only excites one mode, after the multiple modes are coupled, the first piezoelectric The energy density generated by the electrical element 122 is greater, that is, the driving force is greater. Under the condition of the same driving force, the volume of the first piezoelectric element 122 coupled with multiple modes can be made smaller.
  • the modal coupling can be but not limited to the L1-B2 working mode coupled to the first-order elongation (L1) vibration mode and the second-order bending vibration mode (B2), or the first-order bending ( B1) coupled B1-B1 working modes, etc.
  • the contact surface of the piezoelectric part and the functional component can generate a motion similar to an elliptical track, and then the functional component can be pushed to move linearly by friction of the first friction member.
  • the first piezoelectric element is the core component in the first piezoelectric module, which is mainly formed by piezoelectric material block or film, so this determines the piezoelectric performance (mainly piezoelectric constant d33) of the piezoelectric material and the first The performance of a piezoelectric element (such as: driving force, speed, driving voltage, etc.) is closely related.
  • the d33 of commonly used piezoelectric materials is usually around 100-600pC/N, and the d33 of a small number of single crystal materials can reach 2000-4000pC/N.
  • the driving voltage of the first piezoelectric element is generally hundreds of thousands of volts, so the main application scenario of the first piezoelectric element is usually in large-scale equipment, such as industrial robots, high-precision translation stages, etc.
  • the first piezoelectric element using L1-B2 dual vibration mode coupling generally has disadvantages such as high driving voltage, complex structure, or difficult fabrication, and the first piezoelectric element is generally made of piezoelectric ceramics, and the energy density and Piezoelectric single crystals are relatively low, and it is difficult to achieve micro-nano precision control and miniaturization.
  • the existing first piezoelectric element made of piezoelectric single crystal material has small volume and high output performance, the required driving voltage is still relatively large (>100V).
  • the applicant proposes a first piezoelectric element through research, which can effectively overcome the disadvantages of the first piezoelectric element such as complex structure, difficult manufacture, and high driving voltage, and can ensure performance output under the premise of miniaturization. Can be applied to the driver of the camera module.
  • Figure 55 is a schematic structural diagram of the first piezoelectric element and the first friction element in some embodiments of the present application
  • Figure 56 is the structure of the piezoelectric body of the first piezoelectric element in the embodiment of Figure 55 schematic diagram.
  • the first piezoelectric element 122 includes a plurality of stacked piezoelectric bodies 31 , and the first friction element 123 is disposed on the piezoelectric bodies 31 .
  • the first friction member 123 can be bonded to the center position or the axis-symmetrical position of the surface of the piezoelectric body 31 along the length direction or the width direction of the piezoelectric body 31 .
  • the piezoelectric body 31 moves, it can drive the first friction member 123 to move, thereby relying on the frictional contact between the first friction member 123 and the functional component 40 to drive the functional component 40 to move.
  • the piezoelectric body 31 is generally in the shape of a rectangular plate or a rectangular body, and can be made of materials such as piezoelectric ceramics, piezoelectric single crystals, and textured ceramics.
  • the piezoelectric body 31 can be made of lead indium niobate-lead magnesium niobate-lead titanate relaxor ferroelectric single crystal (PIN-PMN-PT single crystal).
  • PIN-PMN-PT single crystal lead indium niobate-lead magnesium niobate-lead titanate relaxor ferroelectric single crystal
  • the piezoelectric body 31 can also be in other shapes, which will not be described in detail.
  • first friction members 123 There may be one or more first friction members 123 .
  • one first friction member 123 may be disposed at the center of the surface of the piezoelectric body 31 along the length direction or the width direction of the piezoelectric body 31 .
  • the plurality of first friction members 123 may be arranged at axially symmetrical positions on the surface of the piezoelectric body 31 along the length direction or the width direction of the piezoelectric body 31 .
  • the Z direction can be the thickness direction of the piezoelectric body 31, the X direction, and the Y direction. They may respectively be the extension directions of two adjacent edges of the piezoelectric body 31 projected on the XY plane, or the X direction and the Y direction may be the length direction and the width direction of the piezoelectric body 31 respectively.
  • the X direction may be a first preset direction
  • the Y direction may be a second preset direction
  • the X direction may be a second preset direction
  • the Y direction may be The first preset direction.
  • a plurality of piezoelectric bodies 31 are stacked along the Z direction and in a manner opposite to the direction indicated by the polarization direction of two adjacent piezoelectric bodies 31, and the polarization direction can be as shown in FIG. 56 P direction. It should be understood that the polarization directions of each piezoelectric body 31 are basically the same, and the polarization directions of two adjacent piezoelectric bodies 31 point to opposite directions when stacked.
  • the first surfaces 311 of two adjacent piezoelectric bodies 31 can be directly bonded through the first electrode layer 3101, and/or, the second surfaces 312 of two adjacent piezoelectric bodies 31 can be bonded through the first electrode layer 3101.
  • the two electrode layers 3102 are directly bonded, and this part of the implementation will be described sequentially below.
  • the first electrode layer 3101 can be formed on the first surface 311 by screen printing conductive silver paste or conductive glue
  • the second electrode layer 3102 can be formed on the second surface 312 by silk screen printing conductive silver paste or conductive glue.
  • the first piezoelectric element 122 includes two piezoelectric bodies 31 stacked along the Z direction, and the second surfaces 312 of the two piezoelectric bodies 31 are second electrodes formed by conductive silver paste or conductive glue.
  • Layer 3102 makes a direct adhesive connection.
  • the conductive silver paste or conductive glue printed on the second surface 312 is not only used to form the second electrode layer 3102 to realize electrical functions, but also used as an adhesive medium between the two piezoelectric bodies 31 to realize Direct adhesive connection of two piezoelectric bodies 31 .
  • the first electrode layer 3101 and the second electrode layer 3102 can be made of conductive silver paste or conductive glue, which can realize the bonding function under certain conditions (such as heat or pressure).
  • the first surfaces 311 of the two piezoelectric bodies 31 may be directly bonded and connected through the first electrode layer 3101 formed by conductive silver paste or conductive glue. That is, the conductive silver paste or conductive glue silk-screened on the first surface 311 is not only used to form the first electrode layer 3101 to realize electrical functions, but also used as an adhesive medium between two piezoelectric bodies 31 to realize two piezoelectric bodies 31. Adhesive connection of the body 31 .
  • Conductive adhesives generally combine conductive particles together through the bonding effect of the matrix resin to form a conductive path and realize the conductive connection of the adhered materials.
  • the matrix resin is a kind of adhesive, and an appropriate curing temperature can be selected for bonding.
  • the main components of conductive silver paste are resin, solvent, additives, silver powder, etc. It has the characteristics of low curing temperature and high bonding strength, and can realize the conductive connection of the adhered materials.
  • the first electrode layer 3101 is spaced apart from the edge of the first surface 311 extending along the X direction, and covers the edge of the first surface 311 extending along the Y direction.
  • the second electrode layer 3102 is spaced apart from the edge of the second surface 312 extending along the Y direction, and covers the edge of the second surface 312 extending along the X direction.
  • the first electrode layer 3101 can be divided into first electrodes 3101 a and second electrodes 3101 b arranged at intervals along the X direction.
  • the first electrode 3101a covers one edge of the first surface 311 extending along the Y direction
  • the second electrode 3101b covers the other edge of the first surface 311 extending along the Y direction.
  • first electrode layer 3101 may be spaced from one edge of the first surface 311 extending in the X direction, or the first electrode layer 3101 may be spaced apart from two opposite edges of the first surface 311 extending in the X direction. set up.
  • the second electrode layer 3102 may be spaced apart from two opposite edges extending along the Y direction of the second surface 312 .
  • the second electrode layer 3102 can cover one edge of the second surface 312 extending along the X direction, or the second electrode layer 3102 can cover two oppositely disposed edges of the second surface 312 extending along the X direction.
  • the entire piezoelectric body 31 can be excited to generate the L1-B2 double vibration mode, so that the first friction member 123
  • the contact surface with the functional component 40 can generate a movement of an elliptical trajectory, and then through the friction between the first friction member 123 and the functional component 40 , push the functional component 40 to perform macroscopic linear motion.
  • the first electrode 3101a and the second electrode 3101b can respectively apply a sine or cosine AC voltage with a phase difference of ⁇ k(pi/2) (k is an integer), and the second electrode layer 3102 can be used as a ground terminal.
  • the first piezoelectric element 122 may further include a first external electrode 301 , a second external electrode 302 and a third external electrode 303 disposed on the side surfaces of the plurality of piezoelectric bodies 31 .
  • the first external electrode 301 is electrically connected to the first electrodes 3101 a on each piezoelectric body 31 , so that the first electrodes 3101 a on each piezoelectric body 31 are in a parallel structure on the circuit.
  • the second external electrode 302 is electrically connected to the second electrodes 3101b on each piezoelectric body 31 , so that the second electrodes 3101b on each piezoelectric body 31 are in a parallel structure on the circuit.
  • the third external electrode 303 is electrically connected to the second electrode layer 3102 on each piezoelectric body 31 , so that the second electrode layer 3102 on each piezoelectric body 31 is in a parallel structure on the circuit.
  • the first external electrode 301 at least partially covers one side of the piezoelectric body 31 substantially parallel to the YZ plane, so that the first external electrode 301 can be electrically connected to the first electrodes 3101a on the two piezoelectric bodies 31 respectively.
  • the second external electrode 302 at least partially covers the other side of the piezoelectric body 31 substantially parallel to the YZ plane, so that the second external electrode 302 can be electrically connected to the second electrodes 3101b of the two piezoelectric bodies 31 respectively.
  • the third external electrode 303 at least partially covers the side of the piezoelectric body 31 substantially parallel to the XZ plane, so that the third external electrode 303 can be electrically connected to the second electrode layers 3102 of the two piezoelectric bodies 31 respectively.
  • the first piezoelectric element 122 provided in this embodiment is provided with a plurality of stacked piezoelectric bodies, and an external electrode is provided to electrically connect the corresponding electrodes of each piezoelectric body, so that the corresponding electrodes of each piezoelectric body are formed on the circuit.
  • Parallel structure so that under the drive of the same preset voltage, each piezoelectric body can generate L1-B2 dual vibration modes, and the entire first piezoelectric element 122 can pass through the L1-B2 of the multiple piezoelectric bodies Dual vibration modes realize corresponding motion states.
  • the input power of the driver can be increased through the stacked structure of the multi-layer piezoelectric body, thereby obtaining greater driving force.
  • the multilayer piezoelectric body stack structure can effectively reduce the driving voltage of the driver ( ⁇ 100V) when the total thickness of the driver remains unchanged.
  • the electrode layer is further formed by conductive glue or conductive silver paste to realize the electrical function, and the electrode layer is formed on the surface of the piezoelectric body and the two adjacent piezoelectric bodies are directly bonded through the electrode layer, which can reduce the driver's overall thickness.
  • the external electrodes can be connected to the circuit board of the electronic device, and a preset driving voltage can be applied to the piezoelectric body under the control of a driving circuit on the circuit board or a related control device such as a chip.
  • first piezoelectric element 122 provided in the embodiment of the present application is based on the coupling between the L1-B2 dual vibration modes to achieve a corresponding motion state.
  • other vibration mode coupling methods may also be used to realize the elliptical motion track of the first friction member 123 .
  • Fig. 57 is a schematic structural view of the first piezoelectric element and the first friction element in other embodiments of the present application.
  • Fig. 58 is a schematic diagram of the first piezoelectric element and the first friction element in other embodiments of the present application. Schematic diagram of friction parts.
  • the difference between the first piezoelectric element 122 in the embodiment of FIG. 57 and FIG. 58 and the first piezoelectric element 122 in the embodiment of FIG. 55 lies in that the number of stacked piezoelectric bodies 31 is different.
  • the first piezoelectric element 122 includes three piezoelectric bodies 31 stacked and a first friction element 123 arranged on the side of the three piezoelectric bodies 31 .
  • the first piezoelectric element 122 includes four piezoelectric bodies 31 arranged in a stack and first friction elements 123 arranged on the sides of the four piezoelectric bodies 31 . It can be understood that the number of piezoelectric bodies 31 can be other multiples, and the technical features of the piezoelectric body 31 and the first friction member 123 can refer to the piezoelectric body 31 and the first friction member 123 in the foregoing embodiments.
  • a plurality of piezoelectric bodies 31 are stacked along the Z direction in such a way that the polarization directions of two adjacent piezoelectric bodies 31 are opposite to each other, and the polarization direction can be the P direction as shown in the figure.
  • the polarization direction of each piezoelectric body 31 itself is basically the same, that is, the polarization direction of each piezoelectric body 31 can be directed from the first surface to the second surface, or the polarization direction of each piezoelectric body 31 can be Pointing from the second surface to the first surface.
  • the polarization directions of two adjacent piezoelectric bodies 31 point to opposite directions, that is, when stacking, the first surfaces of two adjacent piezoelectric bodies 31 are close to each other, or two adjacent piezoelectric bodies 31 The second surfaces of are close to each other.
  • the three piezoelectric bodies are a first piezoelectric body 31 a , a second piezoelectric body 31 b , and a third piezoelectric body 31 c from top to bottom.
  • the second surface of the first piezoelectric body 31a is in contact with the second surface of the second piezoelectric body 31b, and the first surface of the second piezoelectric body 31b is in contact with the first surface of the third piezoelectric body 31c.
  • first piezoelectric body 31a and the second piezoelectric body 31b can be bonded and connected through the second electrode layer formed by conductive silver paste or conductive glue, and the second piezoelectric body 31b and the third piezoelectric body 31c can be connected by conductive silver paste.
  • Paste or conductive glue formed the first electrode layer for adhesive connection.
  • the four piezoelectric bodies are a first piezoelectric body 31 a , a second piezoelectric body 31 b , a third piezoelectric body 31 c , and a fourth piezoelectric body 31 d from top to bottom.
  • the second surface of the first piezoelectric body 31a is in contact with the second surface of the second piezoelectric body 31b
  • the first surface of the second piezoelectric body 31b is in contact with the first surface of the third piezoelectric body 31c
  • the third piezoelectric body 31b is connected to the first surface of the third piezoelectric body 31c.
  • the second surface of the piezoelectric body 31c is in contact with the second surface of the fourth piezoelectric body 31d.
  • first piezoelectric body 31a and the second piezoelectric body 31b can be directly bonded and connected through the second electrode layer formed by conductive silver paste or conductive glue
  • the second piezoelectric body 31b and the third piezoelectric body 31c can be connected by conductive
  • the first electrode layer formed of silver paste or conductive glue is directly bonded and connected
  • the third piezoelectric body 31c and the fourth piezoelectric body 31d can be directly bonded and connected through the second electrode layer formed of conductive silver paste or conductive glue.
  • the first piezoelectric element 122 provided in this embodiment is provided with a plurality of stacked piezoelectric bodies, and an external electrode is provided to electrically connect the corresponding electrodes of each piezoelectric body, so that the corresponding electrodes of each piezoelectric body are formed on the circuit.
  • Parallel structure so that under the drive of the same preset voltage, each piezoelectric body can generate L1-B2 dual vibration modes, and the entire first piezoelectric element 122 can pass through the L1-B2 of the multiple piezoelectric bodies Dual vibration modes realize corresponding motion states.
  • the input power of the first piezoelectric element 122 can be increased through the stacked structure of the multi-layer piezoelectric body, so as to obtain a greater driving force.
  • the multilayer piezoelectric body stack structure can effectively reduce the driving voltage ( ⁇ 100V) of the first piezoelectric element 122 .
  • the electrode layer is further formed by conductive glue or conductive silver paste to realize electrical functions, and the direct bonding connection between the two piezoelectric bodies is realized by conductive glue or conductive silver paste, which can reduce the size of the first piezoelectric element. 122 overall thickness.
  • Figure 59 is a schematic structural diagram of the first piezoelectric element and the first friction element in other embodiments of the present application
  • Figure 60 is a diagram of the piezoelectric body of the first piezoelectric element in the embodiment of Figure 59 Schematic.
  • the first piezoelectric element 122 may generally include a plurality of stacked piezoelectric bodies 41 and a first friction element 123 arranged at a specific position of the piezoelectric body 41, that is, the first friction element 123 is arranged on the piezoelectric body 41 without a drive side of the electrode.
  • the first friction member 123 can be bonded to the center position or the axis-symmetrical position of the surface of the piezoelectric body 41 along the length direction or the width direction of the piezoelectric body 41 .
  • the piezoelectric body 41 moves, it can drive the first friction member 123 to move, so that the functional component 40 can be driven to move by virtue of the frictional contact between the first friction member 123 and the functional component 40 .
  • the first friction member 123 can be the first friction member 123 in the above-mentioned embodiments, which will not be repeated here.
  • a plurality of piezoelectric bodies 41 are stacked along the Z direction and in a manner opposite to the direction indicated by the polarization direction of two adjacent piezoelectric bodies 41, and the polarization direction can be as shown in FIG. 58 P direction. It should be understood that the polarization directions of each piezoelectric body 41 are basically the same, and the polarization directions of two adjacent piezoelectric bodies 41 point to opposite directions when stacked.
  • the piezoelectric body 41 may include a first surface 411 and a second surface 412 oppositely disposed along the Z direction, the first surface 411 is provided with the first electrode layer 3101 , and the second surface 312 is provided with the second electrode layer 4102 .
  • the first electrode layer 4101 can be divided into a plurality of electrodes, and the second electrode layer 4102 can be an integrated electrode, that is, the electrodes of the second electrode layer 4102 have an integrated structure.
  • the first electrode layer 4101 can be formed on the first surface 411 by screen printing conductive silver paste or conductive glue
  • the second electrode layer 4102 can be formed on the second surface 412 by silk screen printing conductive silver paste or conductive glue.
  • the first piezoelectric element 122 includes two piezoelectric bodies 41 stacked along the Z direction, and the second surfaces 412 of the two piezoelectric bodies 41 are second electrodes formed by conductive silver paste or conductive glue.
  • Layer 4102 makes a direct adhesive connection.
  • the conductive silver paste or conductive glue printed on the second surface 412 is not only used to form the second electrode layer 4102 to achieve electrical functions, but also used as an adhesive medium between the two piezoelectric bodies 41 to achieve Direct adhesive connection of two piezoelectric bodies 41 .
  • the first electrode layer 4101 is spaced apart from the edge of the first surface 411 extending along the Y direction, and covers the edge of the first surface 411 extending along the X direction.
  • the second electrode layer 4102 is spaced apart from the edge of the second surface 412 extending along the X direction, and covers the edge of the second surface 412 extending along the Y direction. It can be understood that the first electrode layer 4101 can be spaced apart from one edge of the first surface 411 extending along the Y direction or two opposite edges can be spaced apart, and the first electrode layer 4101 can cover the first surface 411 along the X direction. Two oppositely disposed edges of the extension.
  • the second electrode layer 4102 can be spaced apart from two opposite edges of the second surface 412 extending in the X direction, and the second electrode layer 4102 can cover one edge or two opposite edges of the second surface 412 extending in the Y direction. edge.
  • the first electrode layer 4101 can be divided into a first electrode 4101a, a second electrode 4101b, a third electrode 4101c and a fourth electrode 4101d roughly arranged in an array.
  • the first electrode 4101a and the third electrode 4101c are arranged diagonally, and are divided into a group, ie, group A electrodes, and the same driving voltage can be applied thereto.
  • the second electrode 4101b and the fourth electrode 4101d are arranged diagonally, and are divided into a group B group of electrodes, and the same driving voltage can be applied thereto.
  • the entire piezoelectric body 41 can be excited to generate the L1-B2 double vibration mode by applying preset driving voltages to the electrodes of group A and group B respectively, so that the first friction member 123 and the functional
  • the contact surface of the component 40 can generate an elliptical track movement, and then through the friction between the first friction member 123 and the functional component 40 , push the functional component 40 to perform a macroscopic linear motion.
  • a sine or cosine AC voltage with a phase difference of ⁇ k(pi/2) (k is an integer) can be applied to the electrodes of the group A and the electrodes of the group B respectively, and the second electrode layer 4102 can be used as a ground terminal.
  • the first piezoelectric element 122 may further include a first external electrode 401 , a second external electrode 402 , a third external electrode 403 , a fourth external electrode 404 and a fifth external electrode 405 disposed on the side surfaces of the plurality of piezoelectric bodies 41 .
  • the first external electrode 401 is electrically connected to the first electrodes 4101 a on each piezoelectric body 41 , so that the first electrodes 4101 a on each piezoelectric body 41 are in a parallel structure on the circuit.
  • the second external electrode 402 is electrically connected to the second electrodes 4101b on each piezoelectric body 41 , so that the second electrodes 4101b on each piezoelectric body 41 are in a parallel structure on the circuit.
  • the third external electrode 403 is electrically connected to the third electrodes 4101c on each piezoelectric body 41 , so that the third electrodes 4101c on each piezoelectric body 41 are in a parallel structure on the circuit.
  • the fourth external electrode 404 is electrically connected to the fourth electrode 4101d on each piezoelectric body 41 , so that the fourth electrode 4101d on each piezoelectric body 41 is in a parallel structure on the circuit.
  • the fifth external electrode 405 is electrically connected to the second electrode layer 4102 on each piezoelectric body 41 , so that the second electrode layer 4102 on each piezoelectric body 41 is in a parallel structure on the circuit.
  • the first external electrode 401 at least partially covers one side of the piezoelectric body 41 that is substantially parallel to the XZ plane, so that the first external electrode 401 can be connected to the first electrodes 4101a on the two piezoelectric bodies 41 respectively. electrical connection.
  • the second external electrode 402 at least partially covers the other side of the piezoelectric body 41 substantially parallel to the XZ plane, so that the second external electrode 402 can be electrically connected to the second electrodes 4101b of the two piezoelectric bodies 41 respectively.
  • the third external electrode 403 and the second external electrode 402 are disposed on the same side of the piezoelectric body 41 , and can be electrically connected to the third electrodes 4101c on the two piezoelectric bodies 41 respectively.
  • the fourth external electrode 404 is disposed on the same side of the piezoelectric body 41 as the first external electrode 401 , and can be electrically connected to the fourth electrodes 4101d on the two piezoelectric bodies 41 respectively.
  • the fifth external electrode 405 at least partially covers the side surface of the piezoelectric body 41 substantially parallel to the YZ plane, so that the fifth external electrode 405 can be electrically connected to the second electrode layers 4102 of the two piezoelectric bodies 41 respectively.
  • the first piezoelectric element 122 provided in this embodiment is provided with a plurality of stacked piezoelectric bodies, and an external electrode is provided to electrically connect the corresponding electrodes of each piezoelectric body, so that the corresponding electrodes of each piezoelectric body are formed on the circuit.
  • Parallel structure so that under the drive of the same preset voltage, each piezoelectric body can generate L1-B2 dual vibration modes, and the entire first piezoelectric element 122 can pass through the L1-B2 of the multiple piezoelectric bodies Dual vibration modes realize corresponding motion states.
  • the input power of the first piezoelectric element 122 can be increased through the stacked structure of the multi-layer piezoelectric body, so as to obtain a greater driving force.
  • the multilayer piezoelectric body stack structure can effectively reduce the driving voltage ( ⁇ 100V) of the first piezoelectric element 122 .
  • the electrode layer is further formed by conductive glue or conductive silver paste to realize electrical functions, and the direct bonding connection between the two piezoelectric bodies is realized by conductive glue or conductive silver paste, which can reduce the size of the first piezoelectric element. 122 overall thickness.
  • Fig. 61 is a schematic structural diagram of the first piezoelectric element and the first friction element in other embodiments of the present application.
  • Fig. 62 is a schematic diagram of the first piezoelectric element and the first friction element in other embodiments of the present application. Schematic diagram of friction parts.
  • the first piezoelectric element 122 includes three piezoelectric bodies 41 stacked and a first friction element 123 arranged on the side of the three piezoelectric bodies 31 .
  • the first piezoelectric element 122 includes four piezoelectric bodies 41 arranged in a stack and first friction elements 123 arranged on the sides of the four piezoelectric bodies 41 . It can be understood that the number of piezoelectric bodies 41 can be other multiples, and the technical features of the piezoelectric bodies 41 and the first friction member 123 can refer to the piezoelectric body and the first friction member 123 in the foregoing embodiments.
  • a plurality of piezoelectric bodies 41 are stacked along the Z direction and in a manner that the polarization directions of two adjacent piezoelectric bodies 41 are opposite to each other, and the polarization direction may be the P direction as shown in the figure.
  • the polarization direction of each piezoelectric body 41 itself is basically the same, that is, the polarization direction of each piezoelectric body 41 can be directed from the first surface to the second surface, or the polarization direction of each piezoelectric body 41 can be Pointing from the second surface to the first surface.
  • the polarization directions of two adjacent piezoelectric bodies 31 point to opposite directions, that is, when stacking, the first surfaces of two adjacent piezoelectric bodies 41 are close to each other, or two adjacent piezoelectric bodies 41 The second surfaces of are close to each other.
  • the three piezoelectric bodies are a first piezoelectric body 41 a , a second piezoelectric body 41 b , and a third piezoelectric body 41 c from top to bottom.
  • the second surface of the first piezoelectric body 41a is in contact with the second surface of the second piezoelectric body 41b, and the first surface of the second piezoelectric body 41b is in contact with the first surface of the third piezoelectric body 41c.
  • first piezoelectric body 41a and the second piezoelectric body 41b can be directly bonded and connected through the second electrode layer formed by conductive silver paste or conductive glue, and the second piezoelectric body 41b and the third piezoelectric body 41c can be connected by conductive
  • the first electrode layer formed by silver paste or conductive glue is directly bonded and connected.
  • the four piezoelectric bodies are a first piezoelectric body 41 a , a second piezoelectric body 41 b , a third piezoelectric body 41 c , and a fourth piezoelectric body 41 d from top to bottom.
  • the second surface of the first piezoelectric body 41a is in contact with the second surface of the second piezoelectric body 41b, and the first surface of the second piezoelectric body 41b is in contact with the first surface of the third piezoelectric body 41c.
  • the second surface of the piezoelectric body 41c is in contact with the second surface of the fourth piezoelectric body 41d.
  • first piezoelectric body 41a and the second piezoelectric body 41b can be directly bonded and connected through the second electrode layer formed by conductive silver paste or conductive glue, and the second piezoelectric body 41b and the third piezoelectric body 41c can be connected by conductive
  • the first electrode layer formed by silver paste or conductive glue is directly bonded and connected, and the third piezoelectric body 41c and fourth piezoelectric body 41d can be directly bonded and connected by the second electrode layer formed by conductive silver paste or conductive glue.
  • the first piezoelectric element 122 provided in this embodiment is provided with a plurality of stacked piezoelectric bodies, and an external electrode is provided to electrically connect the corresponding electrodes of each piezoelectric body, so that the corresponding electrodes of each piezoelectric body are formed on the circuit.
  • Parallel structure so that under the drive of the same preset voltage, each piezoelectric body can generate L1-B2 dual vibration modes, and the entire first piezoelectric element 122 can pass through the L1-B2 of the multiple piezoelectric bodies Dual vibration modes realize corresponding motion states.
  • the input power of the first piezoelectric element 122 can be increased through the stacked structure of the multi-layer piezoelectric body, so as to obtain a greater driving force.
  • the multilayer piezoelectric body stack structure can effectively reduce the driving voltage ( ⁇ 100V) of the first piezoelectric element 122 .
  • the electrode layer is further formed by conductive glue or conductive silver paste to realize electrical functions, and the direct bonding connection between the two piezoelectric bodies is realized by conductive glue or conductive silver paste, which can reduce the size of the first piezoelectric element.
  • 122 overall thickness That is, through the first electrode layer and the second electrode layer arranged oppositely, the piezoelectric body can realize the corresponding vibration mode, and at the same time, the two adjacent piezoelectric bodies are directly bonded through the first electrode layer and/or the second electrode layer. For the main body, the overall thickness of the first piezoelectric element 122 can be reduced to obtain greater driving force and realize large stroke driving.
  • the first piezoelectric element 122 formed by stacking 2, 3 and 4 piezoelectric bodies is illustrated respectively, and the first electrode layer can be divided into two electrodes And four electrodes, those skilled in the art can directly obtain the first piezoelectric element 122 formed by stacking 5, 6 or other multiple piezoelectric bodies according to the needs, and the first electrode layer can be divided into other multiple electrodes
  • the implementation mode will not be described in detail.

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Abstract

本申请提供一种摄像头模组及电子设备。摄像头模组包括：功能组件；以及第一基座组件，用于驱动功能组件，包括：第一承载座，具有第一空间，第一空间用于收容功能组件；以及第一压电模块，承载于第一承载座，包括：第一摩擦件、第一压电件、第一施力件，其中，第一施力件包括相对设置的第一面及第二面，第一面朝向功能组件，第一压电件设置于第一面，第一摩擦件设置于第一压电件，第一摩擦件与功能组件抵接；第一压电件用于在通电时驱动第一摩擦件带动功能组件相对第一承载座运动，且第一压电件在工作时激发至少一个模态。本申请提供的摄像头模组相较于现有技术具有更高的品质。

Description

摄像头模组及电子设备
本申请要求于2021年12月31日提交中国专利局、申请号为202111676613.3、申请名称为“摄像头模组及电子设备”的中国专利申请的优先权；本申请要求于2021年09月30日提交中国专利局、申请号为202111165760.4、申请名称为“驱动器及其制作方法、驱动装置、摄像头模组、电子设备”的中国专利申请的优先权。上述在先申请的内容通过引用结合在本申请中。
技术领域
本申请涉及电子设备技术领域，具体涉及一种摄像头模组及电子设备。
背景技术
目前，手机上的摄像头模组通常采用音圈马达(Voice Coil Motor，VCM)来驱动镜头变焦。音圈马达是利用来自永久磁钢的磁场与通电线圈导体产生的磁场中磁极间的相互作用产生有规律的运动的装置。当线圈通电时，线圈和磁钢两者产生的磁场相互作用，从而推动镜头，实现对焦距离的改变。然而，随着摄像头模组的进一步加大，镜头越来越重，对马达的各方面都提出了更高的要求，音圈马达已经逐步满足不了这些新的要求，导致摄像头模组的品质提升被限制。
发明内容
本申请提供一种摄像头模组及电子设备，所述摄像头模组相较于现有技术具有更高的品质。
第一方面，本申请提供一种摄像头模组，所述摄像头模组包括：
功能组件；以及
第一基座组件，用于驱动所述功能组件，包括：
第一承载座，具有第一空间，所述第一空间用于收容所述功能组件；以及
第一压电模块，承载于所述第一承载座，包括：第一摩擦件、第一压电件、第一施力件，其中，
所述第一施力件包括相对设置的第一面及第二面，所述第一面朝向所述功能组件，所述第一压电件设置于所述第一面，所述第一摩擦件设置于所述第一压电件，所述第一摩擦件与所述功能组件抵接；所述第一压电件用于在通电时驱动所述第一摩擦件带动所述功能组件相对所述第一承载座运动，且所述第一压电件在工作时激发至少一个模态。
第二方面，本申请还提供一种电子设备，所述电子设备包括设备本体以及摄像头模组，所述摄像头模组安装于所述设备本体。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施例提供的电子设备的示意图。
图2为本申请另一实施例提供的电子设备的示意图。
图3为本申请一实施例提供的摄像头模组的分解图。
图4为图3所示的摄像头模组在一实施例中的装配图。
图5为图4所示的摄像头模组沿A-A线的剖视图。
图6为图3所示的摄像头模组中的第一压电模块的示意图。
图7为图6所示的第一压电模块在另一视角的示意图。
图8为本申请实施例提供的另一种第一压电模块的示意图。
图9为图3所示的摄像头模组中的第一承载座的示意图。
图10为图3所示的摄像头模组在另一实施例中的装配图。
图11为图10所示的摄像头模组沿B-B线的剖视图。
图12为图3所示的摄像头模组在又一实施例中的装配图。
图13为图3所示的摄像头模组中的功能组件的示意图。
图14为本申请另一实施例提供的摄像头模组的分解图。
图15为图14所示的摄像头模组的装配图。
图16为图14所示的摄像头模组中的功能器件的示意图。
图17为图14所示的摄像头模组中的第一基座组件的示意图。
图18为图17所示的第一基座组件中的第一压电模块的示意图。
图19为本申请一实施例提供的第一滚动体的安装形式的示意图。
图20为本申请一实施例提供的第二滚动体的安装形式的示意图。
图21为本申请又一实施例提供的摄像头模组的分解图。
图22为图21所示的摄像头模组的装配图。
图23为图21所示的第二基座组件中的第二压电模块的示意图。
图24为本申请一实施例提供的第三滚动体的安装形式的示意图。
图25为本申请一实施例提供的第四滚动体的安装形式的示意图。
图26为本申请又一实施例提供的摄像头模组的分解图。
图27为图26所示的摄像头模组在一实施例中的装配图。
图28为图14所示的摄像头模组中的功能器件的示意图。
图29为图26所示的第三基座组件中的第三压电模块的示意图。
图30为本申请一实施例提供的第五滚动体的安装形式的示意图。
图31为图26所示的摄像头模组在另一实施例中的装配图。
图32为本申请实施例提供的限位件的安装形式的示意图。
图33为图32中所示的限位件的示意图。
图34为本申请实施例提供的外盖的安装形式的示意图。
图35为本申请又一实施例提供的摄像头模组的装配图。
图36为图35所示的摄像头模组的分解图。
图37为本申请提供的摄像头模组的一种预紧方案示意图。
图38为本申请提供的摄像头模组的另一种预紧方案示意图。
图39为本申请提供的摄像头模组的又一种预紧方案示意图。
图40为本申请提供的摄像头模组的又一种预紧方案示意图。
图41为本申请提供的摄像头模组的又一种预紧方案示意图。
图42为本申请提供的摄像头模组的又一种预紧方案示意图。
图43为本申请提供的摄像头模组的又一种预紧方案示意图。
图44为本申请另一实施例提供的第一施力件的示意图。
图45为本申请提供的摄像头模组的又一种预紧方案示意图。
图46为本申请提供的摄像头模组的又一种预紧方案示意图。
图47为本申请提供的功能组件的一种稳定方案示意图。
图48为本申请提供的功能组件的又一种稳定方案示意图。
图49为本申请又一实施例提供的摄像头模组的分解图。
图50为图49所示的摄像头模组的进一步分解图。
图51为图50所示的摄像头模组的装配图。
图52为图51所示的摄像头模组的A区域的放大图。
图53为图50所示的摄像头模组中的第一压电模块的示意图。
图54为图53所示的第一压电模块中的第一施力件的示意图。
图55是本申请一些实施例中第一压电件和第一摩擦件的结构示意图。
图56是图55实施例中第一压电件的压电本体的结构示意图。
图57是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图。
图58是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图。
图59是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图。
图60是图59实施例中第一压电件的压电本体的结构示意图。
图61是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图。
图62是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本文中提及“实施例”或“实施方式”意味着，结合实施例或实施方式描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
本申请提供一种摄像头模组，所述摄像头模组包括：
功能组件；以及
第一基座组件，用于驱动所述功能组件，包括：
第一承载座，具有第一空间，所述第一空间用于收容所述功能组件；以及
第一压电模块，承载于所述第一承载座，包括：第一摩擦件、第一压电件、第一施力件，其中，
所述第一施力件包括相对设置的第一面及第二面，所述第一面朝向所述功能组件，所述第一压电件设置于所述第一面，所述第一摩擦件设置于所述第一压电件，所述第一摩擦件与所述功能组件抵接；所述第一压电件用于在通电时驱动所述第一摩擦件带动所述功能组件相对所述第一承载座运动，且所述第一压电件在工作时激发至少一个模态。
其中，所述第一施力件包括施力部和至少一个连接部，所述施力部和所述连接部相连接，其中，所述连接部连接于所述第一承载座，所述施力部连接于所述第一压电件，所述施力部用于使所述第一摩擦件抵接于所述功能组件。
其中，所述第一施力件具有弹性，所述第一施力件的相背两端抵接于所述第一压电件和所述第一承载座，且弹性压缩。
其中，所述第一承载座设有收容空间，所述收容空间包括第一子收容空间和第二子收容空间，所述第一子收容空间连通所述第一空间，所述第二子收容空间设于所述第一承载座背离所述第一空间的一侧且连通所述第一子收容空间，所述第一子收容空间用于收容至少部分所述第一压电件，所述第二子收容空间用于收容所述施力部和所述连接部。
其中，所述施力部具有开口，所述第一压电件背离所述第一摩擦件的一侧至少部分显露于所述开口。
其中，所述功能组件面向所述第一压电模块的一侧设有凹陷槽，所述第一摩擦件至少部分收容于所述凹陷槽内且抵接于所述凹陷槽的底壁。
其中，所述第一施力件粘接于所述第一压电件。
其中，所述功能组件在所述第一压电模块的驱动下沿第一方向运动，或沿第二方向运动，或沿第三方向运动；所述第一方向、所述第二方向及所述第三方向两两相互垂直。
其中，所述功能组件具有相背设置的第一端面和第二端面，所述第一端面抵接所述第一承载座，所述第一端面和所述第二端面的相对方向为第三方向；当所述第一压电模块通电时，所述第一压电模块可驱动所述功能组件沿所述第三方向运动。
其中，所述功能组件具有第一侧面、第二侧面及第三侧面，所述第一侧面和所述第三侧面相背设置且相背方向为第一方向；所述第一压电模块抵接于所述第二侧面，在所述第一方向上，所述功能组件的相背两侧与所述第一承载座间隔设置；当所述第一压电模块通电时，所述第一压电模块可驱动所述功能组件沿所述第一方向运动。
其中，所述摄像头模组还包括第二基座组件，所述第二基座组件包括第二承载座以及承载于所述第二承载座的第二压电模块，所述第二基座组件具有第二空间，所述第二空间用于收容所述第一基座组件；所述功能组件还具有第四侧面，所述第四侧面与所述第二侧面相背设置且相背方向为第二方向；所述第二压电模块面向于所述第一侧面或所述第三侧面，所述第二压电模块用于驱动所述第一基座组件以带动所述功能组件沿所述第二方向运动。
其中，所述摄像头模组还包括第三基座组件，所述第三基座组件包括第三承载座以及承载于所述第三承载座的第三压电模块，所述第三基座组件具有第三空间，所述第三空间用于收容所述第二基座组件；所述功能组件具有相背设置的第一端面和第二端面，所述第一端面抵接所述第一承载座，所述第一端面和所述第二端面的相对方向为第三方向；所述第三压电模块用于驱动所述第二基座组件以带动所述功能组件沿所述第三方向运动。
其中，所述摄像头模组还包括限位件，所述限位件沿所述第二端面朝向所述第一端面的方向抵接于所述功能组件、所述第一承载座、所述第二承载座，且所述限位件连接于所述第二承载座。
其中，所述功能组件包括功能器件和载体架，所述载体架套设于所述功能器件的外周且承载于所述第一承载座，所述载体架用于抵接所述第一压电模块的第一摩擦件，所述摄像头模组还包括感光元件，所述感光元件与所述功能器件相对设置，当所述第一压电模块通电时，所述功能器件将相对于所述感光元件运动，其中，所述功能器件为镜头。
其中，所述第一承载座包括第一底板部以及环绕连接于所述第一底板部周缘的第一边框部，所述第一底板部和所述第一边框部共同围设而成所述第一空间，所述第一压电模块承载于所述第一边框部，所述第一边框部具有连通所述第一空间的收容空间，所述第一压电模块至少部分设置于所述收容空间内。
其中，所述第一基座组件还包括调节组件，所述调节组件包括设置于所述第一边框部背离所述功能组件一侧的第一调节件，所述第一调节件连接于所述第一施力件和所述第一边框部，所述第一调节件通过所述第一施力件使得所述第一压电模块向所述功能组件施加的预紧力达到预设值。
其中，所述第一施力件包括相连接的施力部和至少一个连接部，所述施力部连接于所述第一压电件，所述连接部设置于所述第一边框部背离所述功能组件的一侧，且与所述第一边框部间隔设置，所述连接部 连接于所述第一调节件，所述第一调节件用于调节所述连接部和所述第一边框部之间的间隔距离。
其中，所述施力部背离所述功能组件的一侧设有第一凸起部，所述第一边框部背离所述功能组件的一侧设有第二凸起部，所述第二凸起部相较于所述第一凸起部临近于所述功能组件，所述第一调节件为可弯曲的拉线，所述第一调节件的相背两端分别缠绕于所述第一凸起部和所述第二凸起部上。
其中，所述连接部具有第一过孔，所述第一边框部具有面对于所述过孔的第一调节孔，所述第一调节孔为螺纹孔，所述第一调节件穿过所述第一过孔且通过螺纹与所述第一调节孔连接。
其中，所述第一调节件为凸设于所述第一边框部背离功能组件一侧的凸台，所述连接部具有第一过孔，所述第一调节件穿设于所述第一过孔内，且所述第一调节件远离所述功能组件的一端通过热铆、焊接或粘接方式连接于所述连接部。
其中，所述第一施力件包括相连接的施力部和至少一个连接部，所述连接部连接于所述第一边框部，所述施力部连接于所述第一压电件，所述调节组件还包括第一支架，所述第一支架设置于所述第一边框部背离所述功能组件的一侧，且与所述第一施力件相对设置，所述第一调节件通过螺纹连接于所述第一支架且穿过所述第一支架，且所述第一调节件抵接于所述施力部背离所述功能组件的一侧。
其中，所述第一边框部设有位于所述功能组件背离所述第一压电模块的一侧的收容孔，所述收容孔贯穿所述第一边框部，所述第一基座组件还包括调节组件，所述调节组件包括调节块、第二调节件，所述调节块至少部分设置于所述收容孔内，所述第二调节件设置于所述第一边框部背离所述功能组件一侧，且所述第二调节件连接于所述调节块和所述第一边框部，所述第二调节件用于迫使所述调节块抵接于所述功能组件，以使得所述第一压电模块向所述功能组件施加的预紧力达到预设值。
其中，所述调节块设有第三凸起部，所述第一边框部背离所述功能组件的一侧设有第四凸起部，且所述第四凸起部相较于所述第三凸起部临近于所述功能组件，所述第二调节件为可弯曲的拉线，所述调节件的相背两端分别缠绕于所述第三凸起部和所述第四凸起部上。
其中，所述调节组件还包括第二支架，所述第二支架设置于所述第一边框部背离所述功能组件的一侧，且与所述调节块相对设置，所述第二调节件通过螺纹连接于所述第二支架且穿过所述第二支架，且所述第二调节件抵接于所述调节块背离所述功能组件的一侧。
其中，所述第一基座组件还包括第一滚动体，所述第一滚动体设置于所述调节块和所述功能组件之间，且活动抵接于所述所述功能组件和所述调节块。
其中，所述第一施力件包括依次弯折连接的第一夹持部、第二夹持部、第三夹持部，所述第一夹持部、所述第三夹持部相对设置，且所述第二夹持部面向于所述功能组件；所述第一夹持部上凸设有第一凸出部，所述第二夹持部上凸设有第二凸出部，所述第三夹持部上凸设有第三凸出部，所述第一凸出部和所述第三凸出部用于共同夹持所述第一压电件，所述第二凸出部用于抵接所述第一压电件，以使得所述第一压电模块向所述功能组件施加的预紧力达到预设值。
其中，所述第一施力件设置于所述收容空间内，且所述收容空间为所述第一边框部上的凹槽。
其中，所述第一施力件设置于所述收容空间内，所述收容空间贯穿所述第一边框部，所述第一承载座还包括第一挡板部，所述第一挡板部设置于所述第一边框部背离所述功能组件的一侧，且抵接所述第二夹持部背离所述第一压电件的一侧。
其中，所述第一压电模块用于驱动所述功能组件沿光轴方向运动，所述第一基座组件还包括稳定组件，所述稳定组件设置于所述功能组件背离所述第一压电模块的一侧，所述稳定组件用于稳定所述功能组件，以避免或削弱所述功能组件在所述第一压电模块作用下产生倾斜。
其中，所述稳定组件包括间隔设置的第一磁性件和第二磁性件，所述第一磁性件承载于所述第一承载座，所述第二磁性件承载于所述功能组件，所述第一磁性件用于磁性吸附所述第二磁性件。
其中，所述稳定组件承载于所述第一承载座，且抵接于所述功能组件，所述稳定组件为压电模块，且用于在通电时通过逆压电效应协同所述第一压电模块共同驱动所述功能组件沿所述光轴方向运动。
其中，所述第一施力件上设有凹槽或者通孔。
其中，所述第一压电件在工作时同时激发多个模态，以使得所述多个模态耦合。
其中，所述第一压电件包括多个堆叠设置的压电本体，每一所述压电本体包括相对设置的第一电极层和第二电极层；其中，相邻两个压电本体通过所述两个压电本体上的第一电极层进行粘接，和/或者，相邻两个压电本体通过所述两个压电本体上的第二电极层进行粘接。
其中，每一所述压电本体的极化方向相同；所述极化方向为所述第一电极层指向所述第二电极层的方向，或者，所述极化方向为所述第二电极层指向所述第一电极层的方向。
其中，所述第一电极层和所述第二电极层采用导电银浆或者导电胶制成。
其中，每一所述压电本体包括相对设置的第一表面和第二表面，所述第一电极层形成于所述第一表面，所述第二电极层形成于所述第二表面；其中，所述第一表面或者所述第二表面的相邻两边沿的延伸方向分别为第一方向和第二方向，所述第一电极层覆盖于所述第一表面沿第二方向延伸的边沿，所述第二电极层覆盖于所述第二表面沿所述第一方向延伸的边沿。
其中，所述第一电极层被划分为沿第一方向间隔设置的第一电极和第二电极，所述多个压电本体的侧面设有第一外电极、第二外电极和第三外电极；每一所述压电本体上的第一电极通过所述第一外电极实现并联，每一所述压电本体上的第二电极通过所述第二外电极实现并联，每一所述压电本体上的第二电极层通过所述第三外电极实现并联。
其中，所述第一电极层被划分为呈阵列排列的第一电极、第二电极、第三电极和第四电极，所述第一电极和所述第三电极呈对角设置，所述第二电极和所述第四电极呈对角设置；其中，施加于所述第一电极和所述第三电极上的驱动电压相同，施加于所述第二电极和所述第四电极上的驱动电压相同。
本申请还提供一种电子设备，所述电子设备包括设备本体以及摄像头模组，所述摄像头模组安装于所述设备本体。
请参照图1，本申请提供一种电子设备1，所述电子设备1包括设备本体200以及以下任意实施例中所述的摄像头模组100，所述摄像头模组100安装于所述设备本体200。
其中，所述电子设备1可以是手机、平板电脑、笔记本电脑、摄像装置、超级移动个人计算机(ultra-mobile personal computer，UMPC)、可穿戴设备(如智能手表、手环、VR设备等)、电视机、车载设备、电子阅读器等设备。需说明的是，本申请实施例仅以电子设备1为手机进行示例性说明，但不应视作为是对本申请的限制。
所述设备本体200是指电子设备1的主体部分，主体部分包括实现电子设备1主要功能的电子组件以及保护、承载这些电子组件的壳体。以手机为例(如图2所示)，设备本体200可以包括显示屏210、中框220、电池盖230，显示屏210和电池盖230均连接于中框220，且设置于中框220的相背两侧。
需说明的是，根据实际需求，摄像头模组100可以设置于电子设备1的任意一侧，本申请对此不作限定。以手机为例，所述摄像头模组100可以设置于手机的正面、背面、侧面。其中，所谓正面是指手机具备显示屏210的一侧；所谓背面是指手机具备电池盖230的一侧；所谓侧面是指手机的中框220的环周侧。可以理解的是，电子设备1的类型不同，其正面、背面、侧面等称呼的定义可能不同，对于其它类型的电子设备1在此不一一详述。
下面结合附图对上述实施例提供的电子设备1中的摄像头模组100进行详细描述。
请参照图3至图5，本申请提供一种摄像头模组100，所述摄像头模组100包括：功能组件40、第一基座组件10。其中，所述第一基座组件10包括第一承载座11和第一压电模块12。所述第一承载座11具有第一空间X1。所述第一空间X1用于收容所述功能组件40。所述第一压电模块12包括第一施力件121、以及相连接的第一压电件122和第一摩擦件123。所述第一施力件121连接于所述第一承载座11且用于通过所述第一压电件122使所述第一摩擦件123抵接于所述功能组件40。所述第一压电件122用于在通电时振动，以使所述第一摩擦件123带动所述功能组件40相对所述第一承载座11运动。
下面对本申请提供的摄像头模组100进行详细描述。
所述摄像头模组100包括功能组件40及第一基座组件10。其中，所述功能组件40为摄像头模组100中可实现特定功能的组成部分。所述第一基座组件10包括第一承载座11和第一压电模块12。所述第一承载座11具有第一空间X1。所述第一空间X1用于收容所述功能组件40。
请参照图6，所述第一压电模块12包括依次连接的第一施力件121、第一压电件122及第一摩擦件123。其中，所述第一施力件121连接于所述第一承载座11，且用于将所述第一摩擦件123抵接于所述功能组件40的侧壁。当所述第一压电件122通电后，所述第一压电件122可通过所述第一摩擦件123带动所述功能组件40相对所述第一承载座11运动。
具体来讲，所述第一施力件121包括相对设置的第一面及第二面。所述第一面朝向所述功能组件40。所述第一压电件122设置于所述第一面。所述第一摩擦件123设置于所述第一压电件122。所述第一摩擦件123与所述功能组件40抵接。所述第一压电件122用于在通电时驱动所述第一摩擦件123带动所述功能组件40相对所述第一承载座11运动，且所述第一压电件122在工作时激发至少一个模态。
其中，至少一个模态是指模态的数量为一个或多个(所谓多个是指数量大于或等于两个)。
当模态的数量为一个时，第一压电件122依靠一个模态产生微幅振动和驱动力，然后通过第一摩擦件123将多次累积的微幅振动转化为功能组件40的宏观直线运动，从而实现驱动功能。可以理解的是，一个模态所对应的驱动控制方式更简单，从而可减小设计难度。
当模态的数量为多个时，第一压电件122可以在多个模态的耦合下进行工作。具体而言，在向第一压电件122施加一定频率的交流电信号后，第一压电件122同时激发出多个模态。第一压电件122依靠多个模态耦合产生微幅振动和驱动力，然后通过第一摩擦件123将多次累积的微幅振动转化为功能组件40的宏观直线运动，从而实现驱动功能。可以理解的是，第一压电件122激发多个模态，且多个模态耦合，相较于第一压电件122只激发一个模态而言，多个模态耦合后第一压电件122产生的能量密度更大，即驱动力更大，在相同驱动力的条件下，多个模态耦合的第一压电件122的体积可以做的更小。
模态的类型可以但不仅限于为一阶伸长(L1)振动模态、二阶弯曲振动模态(B2)、一阶弯曲(B1)振动模态。模态耦合可以但不仅限于为一阶伸长(L1)振动模态和二阶弯曲振动模态(B2)相耦合的L1-B2 工作模态，或两个正交方向一阶弯曲(B1)相耦合的B1-B1工作模态等。
第一摩擦件123凸设于第一压电件122的一侧，第一施力件121通过第一压电件122向第一摩擦件123提供一个朝向功能组件40的作用力，该作用力促使第一摩擦件123压紧功能组件40的侧壁，因此，第一摩擦件123和功能组件40之间存在正压力，从而使得第一摩擦件123可通过摩擦作用带动功能组件40。其中，第一压电模块12的驱动类型可以为粘滑形式，也可以是超声波形式。
第一施力件121可以为弹片，弹片可以通过模内注塑(insert modeling)或类似工艺嵌合在第一承载座中，通过改变弹片的形状或曲率来改变施加在第一压电件122上的预紧力。
第一施力件121的材料可以采用铝、铁、铜、不锈钢等金属材质或具有弹性的其他弹性体材料。第一施力件121可以但不仅限于通过点胶、熔接、焊接等方式与第一压电件122固定在一起。
第一压电件122为压电材料，压电材料可采用压电陶瓷或压电单晶制备，也可以采用多层陶瓷，具体地，压电材料可选用锆钛酸铅(PZT)基压电陶瓷、铌酸钾钠(KNN)基压电陶瓷、钛酸钡(BT)基压电陶瓷、铌镁酸铅-铌铟酸铅(PMN-PT)基压电单晶、织构陶瓷等。压电件表面镀有电极，可以根据需求划分成若干个电极，用于施加控制信号。可选的，第一压电件122与第一承载座间隔设置，以使得第一压电件122的周围一圈留有一定的空间，以保证第一压电件122在高频振动时不受干扰。
第一摩擦件123的形状可采用圆柱形、半圆柱形状、球形、三角锥形或其他一些不规则形状设计，特别的，第一摩擦件123表面可以做倒角或倒圆角设计。第一摩擦件123的材料可选用氧化铝(Al2O3)、氧化硅(SiO2)、氧化锆(ZrO2)或碳纤维、聚酯纤维、铝、铁、铜、不锈钢等耐磨材料，既能保证压电模块的驱动力能良好的传递给功能组件，同时也能防止长时间工作下的磨损，保持配合精度。第一摩擦件123的数量可以采用一个，也可以采用多个。
所述第一摩擦件123的材料可以但不仅限于为陶瓷等耐磨材料。第一摩擦件123的形状可以但不仅限于为矩形、椭圆形、球形、圆形等。
所述第一压电件122为压电材料，压电材料具有以下特性：当压电材料在沿一定方向上受到外力的作用而变形时，其内部会产生极化现象，同时在它的两个相对表面上出现正负相反的电荷，当外力去掉后，它又会恢复到不带电的状态。相反，当在压电材料的极化方向上施加电场，压电材料将会发生变形，当电场去掉后，压电材料的变形随之消失。
所述第一压电件122可以但不仅限于为压电陶瓷。第一压电件122的形状可以但不仅限于为矩形等。
可以理解的是，通电后的第一压电件122发生变形后，第一摩擦件123将随之运动。由于第一摩擦件123与功能组件40处于抵接状态，因此，第一摩擦件123将带动功能组件40运动。当第一压电件122到达较大形变量时，可通过控制电压使第一压电件122恢复原状(第一摩擦件123同样回归原位)，而功能组件40由于惯性而保持静止。通过循环上述过程，则可驱使功能组件40在所运动的方向上产生较大位移。
虽然第一压电件122每次的形变量较小，但是，可控制第一压电件122可处于高频率变形的状态，经过若干次形变累积后，功能组件40则可以在较短时间内获得较大的位移量。
需说明的是，电压的极性相反，第一压电件122的变形方向随之反向，因此，可通过控制电压来使功能组件40实现往复运动(正向运动和反向运动)。
现有技术中，手机上的摄像头模组通常采用音圈马达来驱动镜头。音圈马达主要由线圈和磁钢组成，线圈和磁钢两者中的一个安装于镜头，并通过磁场作用来驱使镜头往复运动，从而实现变焦。然而，随着摄像头模组的进一步加大，镜头越来越重，对马达的推动力、行程、精度、体积等都提出了更高的要求，音圈马达已经逐步满足不了这些新的要求。具体的，由于音圈马达通过磁场作用来驱动镜头，因此，音圈马达容易被手机内其他带磁器件干扰。线圈和磁钢均环绕镜头设置，因此会占用较大空间。在变焦过程中，线圈和磁钢将相对运动，磁场作用强度相应发生变化，因此，不能音圈马达的驱动精度不能做到很高，镜头也只能实现较小行程。
而在本申请中，所提供的摄像头模组100通过第一压电模块12来驱动功能组件40，所述第一压电模块12包括第一施力件121、第一压电件122、第一摩擦件123。其中，当第一压电件122通电时，第一压电件122将发生形变，第一摩擦件123将相应运动，由于第一摩擦件123在第一施力件121的作用下抵接于功能组件40，因此，功能组件40将跟随第一摩擦件123运动。相较于现有技术，在本申请提供的摄像头模组100中，由于第一压电件122通过变形来带动功能组件40运动，因此其推动力更大，也不会受其他器件的干扰。同时，由于第一摩擦件123通过抵接关系带动功能组件40运动，因此，只要第一摩擦件123能够与功能组件40形成抵接关系，就都能够驱使功能组件40运动，因此，可以使功能组件40实现更大的运动行程。此外，第一压电件122每次的形变量都较小，功能组件40每次的位移量也相应较小，当需要使功能组件40运动预设行程时，更容易实现高精度控制。而且，第一压电模块12只需设于功能组件40的一侧，不需环绕功能组件40，从而占用空间更小。因此，上述设计可显著提升摄像头模组的品质。
需说明的是，本申请提供的摄像头模组100可以但不仅限于应用在簧片式摄像头模组、导杆式摄像头模组、导杆+滚珠式摄像头模组。
请参照图3至图5，所述功能组件40包括功能器件41和载体架42。所述载体架42套设于所述功能 器件41的外周且承载于所述第一承载座11。所述载体架42用于抵接所述第一压电模块12的第一摩擦件123。所述摄像头模组100还包括感光元件50。所述感光元件50与所述功能器件41相对设置。当所述第一压电模块12通电时，所述功能器件41将相对于所述感光元件50运动。其中，所述功能器件41为镜头。
具体的，镜头用于收集并聚焦光线，镜头可以包括镜筒和镜片组，镜片组设于镜筒内。载体架42套设于镜筒的外周，且承载于第一承载座11，从而实现整个功能组件40承载于第一承载座11上。感光元件50用于接收来自镜头的光线并将光信号转换为电信号。第一承载座11上设有透光孔W，该透光孔W连通第一空间X1且贯穿第一承载座11。镜头中的镜片组与感光元件50均正对于该透光孔W。当第一压电模块12通电时，镜头将相对感光元件50运动，从而可使摄像头模组具有变焦功能或防抖功能，其中，变焦功能和防抖功能代表镜头相对感光元件50的运动方向不一样，后文将会展开详述。
可选的，请参照图6和图7，第一施力件121包括施力部1211和至少一个连接部1212。所述施力部1211和所述连接部1212相连接。其中，连接部1212连接于第一承载座11，施力部1211连接于第一压电件122，所述施力部1211用于使所述第一摩擦件123抵接于所述功能组件40，也就是说，该施力部1211用于向第一摩擦件123提供抵接功能组件40的作用力(图7中的虚线箭头为作用力方向)。在本实施例中，第一施力件121可以做成片状(比如弹片)，从而有利于减小功能组件40的尺寸。需说明的是，本申请以下内容仅以第一施力件121呈片状为基础进行示例性说明。
可选的，请参照图7，所述施力部1211具有开口K，该开口K贯穿施力部1211。所述第一压电件122背离所述第一摩擦件123的一侧至少部分显露于所述开口K。可以理解的是，设置开口K可以减小施力部1211的刚度，进而可提高施力部1211的可变形能力，使得施力部1211能够更有效的向第一摩擦件123提供抵接功能组件40的作用力。
可选的，请参照图8，所述第一施力件121具有弹性，所述第一施力件121的相背两端抵接于所述第一压电件122和所述第一承载座11，且弹性压缩。也就是说，第一施力件121的一端抵接于第一承载座11面向于功能组件40的一侧，另一端抵接于第一压电件122背离第一摩擦件123的一侧，且第一施力件121呈压缩状态，从而使得第一摩擦件123抵接于功能组件40。其中，第一施力件121可以但不仅限于为弹簧，第一施力件121也可以为橡胶、硅胶等弹性材料制成。另外，第一施力件121的大致形状可以但不仅限于为圆柱、矩形柱等。
当然，第一施力件121也可以为其他可行的实施形式，在此不一一详述。
请参照图9，所述第一承载座11设有收容空间Y1，所述收容空间Y1连通所述第一空间X1，所述第一压电模块12至少部分设置于所述收容空间Y1内。所述收容空间Y1可以贯穿第一承载座11，也可以不贯穿。可以理解的是，将第一压电模块12设置于收容空间Y1内，可减小空间的占用，功能组件40从而可设计的更大，从另一个角度来讲，也可以减小摄像头模组100的体积，从而减小摄像头模组100在电子设备1内的占用空间。
可选的，请参照图10至图11，所述收容空间Y1包括第一子收容空间Y11和第二子收容空间Y12。所述第一子收容空间Y11连通所述第一空间X1。所述第二子收容空间Y12设于所述第一承载座11背离所述第一空间X1的一侧且连通所述第一子收容空间Y11。所述第一子收容空间Y11用于收容至少部分所述第一压电件122。所述第二子收容空间Y12用于收容至少部分所述第一施力件121。也就是说，第一压电件122和第一施力件121分别设于第一子收容空间Y11和第二子收容空间Y12，从而使第一压电件122和第一施力件121隐藏于第一承载座11，如此则可以减小空间的占用，从而使摄像头模组100布置的更紧凑，而且，还可以减小第一压电件122和第一施力件121被外物损坏的可能性。
可选的，请参照图11，所述功能组件40面向所述第一压电模块12的一侧设有凹陷槽Z。所述第一摩擦件123至少部分收容于所述凹陷槽Z内且抵接于所述凹陷槽Z的底壁。如此设置，可以减小第一承载座11的径向尺寸，从而缩小摄像头模组100的体积。从另一个角度来讲，也可以使功能组件40更靠近于第一承载座11的边缘，从而布置的更紧凑。
可选的，所述第一摩擦件123和所述功能组件40的接触类型为面-面接触形式，或为点-面接触形式。可以理解的是，面-面接触形式可形成更大的摩擦力，从而更有利于推动功能组件40。
可选的，所述第一施力件121粘接于所述第一压电件122。可以理解的是，粘接操作较为简单，很轻易则可以将第一施力件121和第一压电件122形成连接效果，从而可避免设计复杂的连接结构。而且，使用粘接方式可以节约成本。需说明的是，第一施力件121和第一压电件122的粘接介质可以但不仅限于为胶水、双面胶。
请参照图12，所述功能组件40在所述第一压电模块12的驱动下沿第一方向d1运动，或沿第二方向d2运动，或沿第三方向d3运动。所述第一方向d1、所述第二方向d2及所述第三方向d3两两相互垂直。也就是说，产商可根据实际需求，将功能组件40设计为沿第一方向d1、第二方向d2、第三方向d3三者中的任意一个方向运动，而这三个方向为不同的方向。换而言之，第一压电模块12可以用于实现摄像头模组的变焦功能，或者用于实现摄像头模组的防抖功能。具体的，当需要摄像头模组在第一方向d1上实现防抖时，则设计为：第一压电模块12用于驱动功能组件40沿第一方向d1运动。当需要摄像头模组在 第二方向d2上实现防抖时，则设计为：第一压电模块12用于驱动功能组件40沿第二方向d2运动。当需要摄像头模组在第三方向d3上实现变焦时，则设计为：第一压电模块12用于驱动功能组件40沿第三方向d3运动。
下面结合附图详细介绍功能组件40的各种运动形式。
在一种实施方式中，所述第一压电模块12用于实现摄像头模组的变焦功能。
请参照图13，所述功能组件40具有相背设置的第一端面D1和第二端面D2。所述第一端面D1抵接所述第一承载座11。所述第一端面D1和所述第二端面D2的相对方向为第三方向d3。当所述第一压电模块12通电时，所述第一压电模块12可驱动所述功能组件40沿所述第三方向d3运动。其中，第一端面D1和第二端面D2的相对方向是指：第一端面D1朝向第二端面D2的方向，以及第二端面D2朝向第一端面D1的方向。可以理解的是，第三方向d3即为摄像头模组的光轴方向，功能器件41(镜头)沿光轴方向运动，功能器件41与感光元件50之间的距离则会改变，从而实现调焦。
在另一种实施方式中，所述第一压电模块12用于实现摄像头模组的防抖功能。需说明的是，以下实施例以图14至图15所示摄像头模组100为基础进行示例性说明。
请参照图14至图16，所述功能组件40具有第一侧面M1、第二侧面M2及第三侧面M3。所述第一侧面M1和所述第三侧面M3相背设置且相背方向为第一方向d1。其中，第一侧面M1和第三侧面M3的相背方向是指：第一侧面M1朝向第三侧面M3的方向，以及第三侧面M3朝向第一侧面M1的方向。
所述第一压电模块12抵接于所述第二侧面M2。在所述第一方向d1上，所述功能组件40的相背两侧与所述第一承载座11间隔设置。也就是说，第一侧面M1和第三侧面M3均与第一承载座11的侧壁间隔设置。当所述第一压电模块12通电时，所述第一压电模块12可驱动所述功能组件40沿所述第一方向d1运动。即，功能组件40可沿第一侧面M1朝向第三侧面M3的方向运动，也可沿第三侧面M3朝向第一侧面M1的方向运动，从而可以使摄像头模组在第一方向d1上实现防抖。
可选的，在所述第一方向d1上，功能组件40与第一承载座11的间隔距离为0mm～1mm。进一步可选的，在所述第一方向d1上，功能组件40与第一承载座11的间隔距离为0.25mm。
请参照图17，所述第一承载座11包括第一底板部111以及环绕连接于所述第一底板部111周缘的第一边框部112。所述第一底板部111和所述第一边框部112共同围设而成所述第一空间X1。所述第一底板部111用于承载所述功能组件40。所述第一边框部112用于承载所述第一压电模块12。第一底板部111上设有透光孔W，功能器件41(镜头)和感光元件50均正对于该透光孔W，以使来自功能器件41的光线可穿过透光孔W进而照射至感光元件50。
可选的，请参照图17和图18，第一边框部112上设有收容空间Y1，第一压电模块12至少部分设于收容空间Y1内。进一步的，收容空间Y1贯穿第一边框部112，第一压电件122至少部分设于收容空间Y1内。第一摩擦件123和第一施力件121连接于第一压电件122的相背两端。第一施力件121设于第一边框部112背离功能组件40的一侧，且与第一边框部112相连接。
请参照图17和图19，所述第一基座组件10还包括第一滚动体13。所述第一滚动体13设于所述功能组件40背离所述第一压电模块12的一侧，且活动抵接于所述第一边框部112和所述功能组件40。可以理解的是，当第一压电模块12通电时，由于功能组件40将相对第一承载座11的第一边框部112运动，若功能组件40和第一边框部112直接接触，将会产生阻力较大的滑动摩擦，在经历一段时间后会导致磨损严重，进而造成第一摩擦件123不能紧密抵接于功能组件40，而且，由于阻力较大，还会增大耗电量。本实施例中，在功能组件40和第一边框部112之间设置第一滚动体13，从而可以使得第一边框部112、第一滚动体13、功能组件40三者之间为滚动摩擦，如此既能减小磨损，又能节省电量，还能使运动过程更顺畅。
可选的，第一滚动体13为球体或者圆柱体。
请参照图17和图19，所述功能组件40和/或所述第一边框部112上设有第一凹槽C1，所述第一滚动体13活动设置于所述第一凹槽C1内。换而言之，第一凹槽C1可以设置于功能组件40上，也可以设置于第一边框部112上，还可以是功能组件40和第一边框部112上均设有第一凹槽C1。可以理解的是，第一滚动体13容纳于第一凹槽C1内，可以减小功能组件40和第一边框部112之间的间隙，从而使得整个摄像头模组100布置的更紧凑。
请参照图17和图20，所述第一基座组件10还包括第二滚动体14，所述第二滚动体14设于所述第一底板部111和所述功能组件40之间，且活动抵接于所述第一底板部111和所述功能组件40。可以理解的是，当第一压电模块12通电时，由于功能组件40将相对第一承载座11的第一底板部111运动，若功能组件40和第一底板部111直接接触，将会产生阻力较大的滑动摩擦，在经历一段时间后会导致磨损严重，而且，由于阻力较大，还会增大耗电量。本实施例中，在功能组件40和第一底板部111之间设置第二滚动体14，从而可以使得第一底板部111、第二滚动体14、功能组件40三者之间为滚动摩擦，如此既能减小磨损，又能节省电量，还能使运动过程更顺畅。
可选的，第二滚动体14为球体或者圆柱体。
请参照图17和图20，所述功能组件40和/或所述第一底板部111上设有第二凹槽C2，所述第二滚动体14设置于所述第二凹槽C2内。换而言之，第二凹槽C2可以设置于功能组件40上，也可以设置于第一底板部111上，还可以是功能组件40和第一底板部111上均设有第二凹槽C2。可以理解的是，第二滚动体14容纳于第二凹槽C2内，可以减小功能组件40和第一底板部111之间的间隙，从而使得整个摄像头模组100布置的更紧凑。
请参照图21和图22，所述摄像头模组100还包括第二基座组件20。所述第二基座组件20包括第二承载座21以及承载于所述第二承载座21的第二压电模块22。所述第二基座组件20具有第二空间X2，所述第二空间X2用于收容所述第一基座组件10。也就是说，第一基座组件10和功能组件40一同收容于第二空间X2内。
请参照图16，所述功能组件40还具有第四侧面M4，所述第四侧面M4与所述第二侧面M2相背设置且相背方向为第二方向d2。其中，第四侧面M4和第二侧面M2的相背方向是指：第四侧面M4朝向第二侧面M2的方向，以及第二侧面M2朝向第四侧面M4的方向。
所述第二压电模块22面向于所述第一侧面M1或所述第三侧面M3(在本实施例中，第二压电模块22为面向于第一侧面M1)。所述第二压电模块22抵接于第一边框部112且用于驱动所述第一基座组件10以带动所述功能组件40沿所述第二方向d2运动。即，功能组件40可沿第四侧面M4朝向第二侧面M2的方向运动，也可沿第二侧面M2朝向第四侧面M4的方向运动，从而可以使摄像头模组在第二方向d2上实现防抖。
需说明的是，在所述第二方向d2上，所述第一承载座11的相背两侧与所述第二承载座21间隔设置。
可选的，在所述第二方向d2上，第一承载座11与第二承载座21的间隔距离为0mm～1mm。进一步可选的，在所述第二方向d2上，第一承载座11与第二承载座21的间隔距离为0.25mm。
请参照图21，所述第二承载座21包括第二底板部211以及环绕连接于所述第二底板部211周缘的第二边框部212。所述第二底板部211和所述第二边框部212共同围设而成所述第二空间X2。所述第二底板部211用于承载所述第一承载座11。所述第二边框部212用于承载所述第二压电模块22。第二底板部211上设有透光孔W，功能器件41(镜头)和感光元件50均正对于该透光孔W，以使来自功能器件41的光线可穿过透光孔W进而照射至感光元件50。
可选的，请参照图22，所述第二边框部212上设有第一让位空间R1，所述第一让位空间R1正对于所述第一压电模块12。所述第一让位空间R1用于收容第一压电模块12。如此设置，可以避免第一压电模块12在运动过程中碰撞第二边框部212，从而可以进一步减小第一边框部112和第二边框部212之间的距离，使得摄像头模组100更紧凑。可选的，所述第一让位空间R1贯穿第二边框部212。
请参照图23，所述第二压电模块22包括依次连接的第二施力件221、第二压电件222及第二摩擦件223。其中，所述第二施力件221连接于所述第二承载座21，且用于将所述第二摩擦件223抵接于所述第一边框部112。当所述第二压电件222通电后，第二压电件222将发生形变，所述第二压电件222可通过所述第二摩擦件223带动所述第一承载座11往第二方向d2运动。可以理解的是，第一承载座11运动，即意味着功能组件40也将往第二方向d2运动，从而可以使摄像头模组在第二方向d2上实现防抖。
需说明的是，第二压电模块22可与第一压电模块12完全相同，也可不相同。对于第二施力件221、第二压电件222及第二摩擦件223的形状、材料、连接关系等，请对应参照前面关于第一施力件121、第一压电件122及第一摩擦件123的描述，在此不再详述。
可选的，请参照图21，第二边框部212上设有容置空间Y2，第二压电模块22至少部分设于容置空间Y2内。进一步的，容置空间Y2贯穿第二边框部212，第二压电件222至少部分设于容置空间Y2内。第二摩擦件223和第二施力件221连接于第二压电件222的相背两端。第二施力件221设于第二边框部212背离功能组件40的一侧，且与第二边框部212相连接。
请参照图24，所述第二基座组件20还包括第三滚动体23。所述第三滚动体23设于所述第一边框部112背离所述第二压电模块22的一侧，且活动抵接于所述第二边框部212和所述第一边框部112。可以理解的是，在第一边框部112和第二边框部212之间设置第三滚动体23，从而可以使得第二边框部212、第三滚动体23、第一边框部112三者之间为滚动摩擦，如此既能减小磨损，又能节省电量，还能使运动过程更顺畅。
可选的，第三滚动体23为球体或者圆柱体。
请参照图24，所述第一边框部112和/或所述第二边框部212上设有第三凹槽C3，所述第三滚动体23活动设置于所述第三凹槽C3内。换而言之，第三凹槽C3可以设置于第一边框部112上，也可以设置于第二边框部212上，还可以是第一边框部112和第二边框部212上均设有第三凹槽C3。可以理解的是，第三滚动体23容纳于第三凹槽C3内，可以减小第一边框部112和第二边框部212之间的间隙，从而使得整个摄像头模组100布置的更紧凑。
请参照图25，所述第二基座组件20还包括第四滚动体24，所述第四滚动体24设于所述第二底板部211和所述第一底板部111之间，且活动抵接于所述第二底板部211和所述第一底板部111。可以理解的是， 在第一底板部111和第二底板部211之间设置第四滚动体24，从而可以使得第二底板部211、第四滚动体24、第一底板部111三者之间为滚动摩擦，如此既能减小磨损，又能节省电量，还能使运动过程更顺畅。
可选的，第四滚动体24为球体或者圆柱体。
请参照图25，所述第一底板部111和/或所述第二底板部211上设有第四凹槽C4，所述第四滚动体24设置于所述第四凹槽C4内。换而言之，第四凹槽C4可以设置于第一底板部111上，也可以设置于第二底板部211上，还可以是第一底板部111和第二底板部211上均设有第四凹槽C4。可以理解的是，第四滚动体24容纳于第四凹槽C4内，可以减小第一底板部111和第二底板部211之间的间隙，从而使得整个摄像头模组100布置的更紧凑。
请参照图26至图28，所述摄像头模组100还包括第三基座组件30，所述第三基座组件30包括第三承载座31以及承载于所述第三承载座31的第三压电模块32。所述第三基座组件30具有第三空间X3。所述第三空间X3用于收容所述第二基座组件20。所述功能组件40具有相背设置的第一端面D1和第二端面D2。所述第一端面D1抵接所述第一承载座11。所述第一端面D1和所述第二端面D2的相对方向为第三方向d3。所述第三压电模块32用于驱动所述第二基座组件20以带动所述功能组件40沿所述第三方向d3运动。也就是说，功能组件40可沿第一端面D1朝向第二端面D2的方向运动，也可沿第二端面D2朝向第一端面D1的方向运动，从而可以使摄像头模组在第三方向d3上实现变焦。
需说明的是，所述第三压电模块32可面向于第一侧面M1、第二侧面M2、第三侧面M3、第四侧面M4中的任意一个。
请参照图26至图28，所述第三承载座31包括第三底板部311以及环绕连接于所述第三底板部311周缘的第三边框部312。所述第三底板部311和所述第三边框部312共同围设而成所述第三空间X3。所述第三底板部311用于承载所述第二承载座21。所述第三边框部312用于承载所述第三压电模块32。第三底板部311上设有透光孔W，功能器件41(镜头)和感光元件50均正对于该透光孔W，以使来自功能器件41的光线可穿过透光孔W进而照射至感光元件50。
请参照图29，所述第三压电模块32包括依次连接的第三施力件321、第三压电件322及第三摩擦件323。其中，所述第三施力件321连接于所述第三承载座31，且用于将所述第三摩擦件323抵接于所述第二边框部212。当所述第三压电件322通电后，第三压电件322将发生形变，所述第三压电件322可通过所述第三摩擦件323带动所述第二承载座21往第三方向d3运动。可以理解的是，第二承载座21运动，即意味着功能组件40也将往第三方向d3运动，从而可以使摄像头模组在第三方向d3上实现变焦。
需说明的是，第三压电模块32可与第一压电模块12完全相同，也可不相同。对于第三施力件321、第三压电件322及第三摩擦件323的形状、材料、连接关系等，请对应参照前面关于第一施力件121、第一压电件122及第一摩擦件123的描述，在此不再详述。
可选的，请参照图26和图29，第三边框部312上设有容纳空间Y3，第三压电模块32至少部分设于容纳空间Y3内。进一步的，容纳空间Y3贯穿第三边框部312，第三压电件322至少部分设于容纳空间Y3内。第三摩擦件323和第三施力件321连接于第三压电件322的相背两端。第三施力件321设于第三边框部312背离功能组件40的一侧，且与第三边框部312相连接。
请参照图30，所述第三基座组件30还包括第五滚动体33。所述第五滚动体33设于所述第二边框部212背离所述第三压电模块32的一侧，且活动抵接于所述第三边框部312和所述第二边框部212。可以理解的是，在第二边框部212和第三边框部312之间设置第五滚动体33，从而可以使得第三边框部312、第五滚动体33、第二边框部212三者之间为滚动摩擦，如此既能减小磨损，又能节省电量，还能使运动过程更顺畅。
可选的，第五滚动体33为球体或者圆柱体。
请参照图30，所述第二边框部212和/或所述第三边框部312上设有第五凹槽C5，所述第五滚动体33活动设置于所述第五凹槽C5内。换而言之，第五凹槽C5可以设置于第二边框部212上，也可以设置于第三边框部312上，还可以是第二边框部212和第三边框部312上均设有第五凹槽C5。可以理解的是，第五滚动体33容纳于第五凹槽C5内，可以减小第二边框部212和第三边框部312之间的间隙，从而使得整个摄像头模组100布置的更紧凑。
可选的，请参照图31，所述第三边框部312上设有第二让位空间R2，所述第二让位空间R2正对于所述第二压电模块22。所述第二让位空间R2用于收容第二压电模块22。如此设置，则可以使得摄像头模组100更紧凑。可选的，所述第二让位空间R2贯穿第三边框部312。
请参照图32，所述摄像头模组100还包括限位件60，所述限位件60沿所述第二端面D2朝向所述第一端面D1的方向抵接于所述功能组件40、所述第一承载座11、所述第二承载座21，且所述限位件60连接于所述第二承载座21。如此设置，从而可以避免功能组件40、第一承载座11、第二承载座21在第三方向d3上相对运动，否则功能组件40、第一承载座11、第二承载座21则可能沿第三方向d3相互脱落。
可选的，请参照图33，所述限位件60包括限位部61和多个凸耳部62，所述多个凸耳部62间隔设置且均弯折连接于所述限位部61的周缘。所述限位部61沿所述第二端面D2朝向所述第一端面D1的方向 抵接于所述功能组件40、所述第一承载座11、所述第二承载座21。所述多个凸耳部62连接于所述承载座的侧壁，换而言之，凸耳部62连接于第二边框部212。
请参照图34，所述摄像头模组100还包括外盖70。所述外盖70包括盖体部71以及弯折连接于盖体部71周缘的框体部72。所述盖体部71沿所述第二端面D2朝向所述第一端面D1的方向覆盖所述第三空间X3。所述框体部72围设于第三基座组件30的外周。如此设置，可以将第一压电模块12、第二压电模块22、第三压电模块32隐藏于摄像头模组100中，以避免被外物破坏，也可以减少灰尘杂质的进入，而且还能够使摄像头模组100的整体性更好。
请参照图35至图36，所述摄像头模组100包括功能组件40、以及用于驱动功能组件40的第一基座组件10。所述第一基座组件10包括第一承载座11、第一压电模块12。其中，第一承载座11具有第一空间X1，所述第一空间X1用于收容所述功能组件40。所述第一压电模块12承载于所述第一承载座11。
请参照图36，所述第一承载座11包括第一底板部111以及环绕连接于所述第一底板部111周缘的第一边框部112。所述第一底板部111和所述第一边框部112共同围设而成所述第一空间X1。所述第一边框部112大致呈环状，当所述功能组件40设置于所述第一空间X1内时，所述第一边框部112环绕所述功能组件40。所述第一压电模块12承载于所述第一边框部112，且面向于所述功能组件40，以抵接所述功能组件40。
请参照图36，所述第一边框部112设有连通所述第一空间X1的收容空间Y1，所述收容空间Y1贯穿所述第一边框部112。所述第一压电模块12至少部分设置于所述收容空间Y1内。如此设置，可以将至少部分第一压电模块12隐藏在第一边框部112内，使得摄像头模组100的整体结构较为紧凑，从而减小体积。
请参照图37，第一压电模块12包括第一摩擦件123、第一压电件122、第一施力件121。其中，第一施力件121面向于功能组件40。第一压电件122连接于第一施力件121面向功能组件40的一侧。第一摩擦件123连接于第一压电件122，且抵接于功能组件40。所述第一压电件122用于在通电时驱动第一摩擦件123带动功能组件40相对所述第一承载座11运动。
可以理解的是，第一压电模块12若需要驱动功能组件40运动，两者之间需要适当的摩擦力，而摩擦力与两者之间的正压力相关，而该正压力即为预紧力，也可称之为预压力。也就是说，第一压电模块12需要对功能组件40施加足够的预紧力才能确保功能组件40能够被压电模块驱动。
下面结合附图介绍各种关于第一压电模块12如何向功能组件40施加预紧力的结构形式(包括第一实施例、第二实施例、第三实施例)。上述第二压电模块22、第三压电模块32施加预紧力的形式与此同理，在此不一一详述。
请参照图37，在第一实施例中，所述第一基座组件10还包括调节组件15，所述调节组件15包括设置于所述第一边框部112背离所述功能组件40一侧的第一调节件151，所述第一调节件151直接或间接的连接于所述第一施力件121和所述第一边框部112。所述第一调节件151通过所述第一施力件121使得所述第一压电模块12向所述功能组件40施加的预紧力达到预设值。也就是说，第一调节件151向第一压电模块12施加作用力，该作用力进而由第一压电模块12传递至功能组件40，从而确保第一压电模块12和功能组件40之间的预紧力达到预设值。其中，预紧力的方向为第一摩擦件123朝向功能组件40的方向。
需说明的是，所述第一调节件151直接或间接的连接于所述第一施力件121和所述第一边框部112是指，第一调节件151直接或间接的连接于所述第一施力件121，以及第一调节件151直接或间接的连接于所述第一边框部112。以第一调节件151和第一边框部112的直接和间接连接关系进行说明：第一调节件151可以直接连接于第一边框部112，也可以间接连接第一边框部112。其中，所谓的直接连接是指第一调节件151与第一边框部112直接接触。所谓的间接连接是指第一调节件151通过其他部件间接的连接于第一边框部112，并不直接接触第一边框部112。第一调节件151和第一施力件121的直接和间接连接关系同理，在此不再赘述。其他实施例中涉及到直接或间接连接关系的描述请参照此处。
下面结合附图介绍第一实施例的两种可行的实施方式(包括第一实施方式和第二实施方式)。
请参照图37，在第一实施方式中，所述第一施力件121包括相连接的施力部1211和至少一个连接部1212。所述施力部1211连接于所述第一压电件122。所述连接部1212设置于所述第一边框部112背离所述功能组件40的一侧，且与所述第一边框部112间隔设置。所述连接部1212连接于所述第一调节件151，所述第一调节件151用于调节所述连接部1212和所述第一边框部112之间的间隔距离(以下简称为第一间隔距离)。
具体的，连接部1212将受到第一调节件151的作用力，由于连接部1212与第一边框部112间隔设置，因而由该作用力形成的弯矩将迫使连接部1212弹性弯曲，弯曲的连接部1212再通过施力部1211将作用力施加给第一压电件122，并传递至第一摩擦件123，使得第一摩擦件123和功能组件40形成抵接效果，从而获得预紧力。可以理解的是，第一施力件121的弯曲曲率不同，预紧力的大小也就不同，因此，在安装调试阶段，可以通过第一调节件151来调节第一施力件121的弯曲曲率来调节预紧力大小，而弯曲曲率的改变通过调节第一间隔距离来实现，从而使得预紧力达到所需的预设值。
需说明的是，连接部1212的数量可以为一个，也可以为多个，所谓多个是指数量大于或等于两个。第一调节件151的数量与连接部1212的数量相同，每个第一调节件151对应连接于一个连接部1212。请参照图37，可选的，第一施力件121包括两个连接部1212，两个连接部1212分别连接于施力部1211的相背两端，每个连接部1212分别连接于不同的第一调节件151，以使得第一施力件121的受力均衡。
下面结合附图介绍第一实施方式中的多种可行的子实施方式(包括第一子实施方式、第二子实施方式、第三子实施方式、第四子实施方式)。
请参照图37，在第一子实施方式中，所述施力部1211背离所述功能组件40的一侧设有第一凸起部T1，所述第一边框部112背离所述功能组件40的一侧设有第二凸起部T2，所述第二凸起部T2相较于所述第一凸起部T1临近于所述功能组件40。所述第一调节件151为可弯曲的拉线(也可称之为拉丝)，所述第一调节件151的相背两端分别缠绕于所述第一凸起部T1和所述第二凸起部T2上。由于第二凸起部T2相较于第一凸起部T1临近于功能组件40，因此，第一调节件151将呈倾斜状态，从而使得第一调节件151施加于第一施力件121的作用力的至少部分分力朝向功能组件40，从而能够使得第一压电模块12压紧功能组件40。在安装调试阶段，可以通过调节第一凸起部T1和第二凸起部T2之间的拉线长度来使预紧力达到预设值。
请参照图38，在第二子实施方式中，所述第一调节件151为螺纹件，所述连接部1212具有第一过孔K1，所述第一边框部112具有面对于所述过孔的第一调节孔K2，所述第一调节孔K2为螺纹孔。所述第一调节件151穿过所述第一过孔K1且通过螺纹与所述第一调节孔K2连接。其中，第一调节件151可以但不仅限于为螺钉、螺丝、螺栓等具有螺纹的螺纹件。
具体的，第一调节件151的外周具有外螺纹，第一调节孔K2具有内螺纹，所述外螺纹和所述内螺纹可螺旋配合。第一调节件151包括头部和杆部，其中，杆部具有外螺纹，且穿设于第一过孔K1和第一调节孔K2内，且与第一调节孔K2通过螺纹配合。头部的外径大于第一过孔K1的孔径，且位于连接部1212背离第一边框部112的一侧。可以理解的是，由于头部的外径较大，因而不能穿过第一过孔K1。当杆部逐渐深入第一调节孔K2时，头部将迫使连接部1212逐渐靠近第一边框部112(即第一间隔距离发生改变)，连接部1212的曲率因此发生改变，从而实现预紧力的调节，以使预紧力最终达到预设值。
请参照图39，在第三子实施方式中，所述第一调节件151为凸设于所述第一边框部112背离功能组件40一侧的凸台。所述连接部1212具有第一过孔K1，所述第一过孔K1对应第一调节件151设置。所述第一调节件151穿设于所述第一过孔K1内。且所述第一调节件151远离所述功能组件40的一端通过热铆、焊接或粘接方式连接于所述连接部1212。可以理解的是，连接部1212和第一边框部112之间的第一调节件151的预留长度决定了预紧力的大小，预留长度越大，预紧力越小，反之，预留长度越小，预紧力越大。
请参照图40，在第四子实施方式中，所述第一调节件151为凸设于所述第一边框部112背离功能组件40一侧的凸台，且所述第一调节件151具有外螺纹。所述连接部1212具有第一过孔K1，所述第一过孔K1对应第一调节件151设置。所述第一调节件151穿设于所述第一过孔K1内。所述调节组件15还包括具有内螺纹螺母156，所述螺母156的外径大于第一过孔K1的孔径。所述螺母156通过螺纹连接于所述第一调节件151，即螺母156的内螺纹与第一调节件151的外螺纹旋合在一起。且所述螺母156位于所述连接部1212背离所述第一边框部112背离功能组件40一侧的一侧。在安装调试阶段，可以通过调节螺母156的位置来调节连接部1212和第一边框部112之间的第一调节件151的预留长度，预留长度越大，预紧力越小，反之，预留长度越小，预紧力越大。
请参照图41，在第二实施方式中，所述第一施力件121包括相连接的施力部1211和至少一个连接部1212，所述连接部1212连接于所述第一边框部112。所述施力部1211连接于所述第一压电件122。所述调节组件15还包括第一支架152，所述第一支架152设置于所述第一边框部112背离所述功能组件40的一侧，且与所述第一施力件121相对设置。所述第一调节件151通过螺纹连接于所述第一支架152，以使得所述第一调节件151通过第一支架152间接的连接于第一边框部112。且所述第一调节件151穿过所述第一支架152。所述第一调节件151抵接于所述施力部1211背离所述功能组件40的一侧。
其中，第一支架152包括第一固定部1521和两个第一支撑部1522。第一固定部1521与第一施力件121间隔设置。两个第一支撑部1522分别弯折连接于第一固定部1521的相背两端。第一支撑部1522远离第一固定部1521的一端连接于第一边框部112，从而实现将第一支架152固定在第一边框部112上。第一固定部1521具有螺纹孔，第一调节件151具有外螺纹，第一调节件151通过螺纹旋入于第一固定部1521上的螺纹孔中，通过螺纹旋合，使得第一调节件151稳定的固定在第一固定部1521上。并且，第一调节件151穿过螺纹孔后抵接于施力部1211背离功能组件40的一侧。由于第一调节件151和第一固定部1521为螺纹配合，因此第一调节件151相对功能组件40的位置可调。第一调节件151越靠近功能组件40，第一调节件151对施力部1211的抵接作用则越强，第一压电模块12对功能组件40的预紧力则越大，反之，第一调节件151越远离功能组件40，第一调节件151对施力部1211的抵接作用则越弱，第一压电模块12对功能组件40的预紧力则越小。其中，所述第一调节件151可以但不仅限于为螺钉、螺丝、螺栓等具有螺纹的螺纹件。
请参照图42，在第二实施例中，所述第一边框部112设有位于所述功能组件40背离所述第一压电模块12的一侧的收容孔K3，所述收容孔K3贯穿所述第一边框部112。所述第一基座组件10还包括调节组件15，所述调节组件15包括调节块154、第二调节件153。其中，所述调节块154至少部分设置于所述收容孔K3内，因此，所述调节块154也位于所述功能组件40背离所述第一压电模块12的一侧，从而使得功能组件40位于调节块154与第一压电模块12之间。所述第二调节件153设置于所述第一边框部112背离所述功能组件40一侧，且所述第二调节件153直接或间接的连接于所述调节块154和所述第一边框部112。所述第二调节件153用于迫使所述调节块154直接或间接的抵接于所述功能组件40，以使得所述第一压电模块12向所述功能组件40施加的预紧力达到预设值。也就是说，第二调节件153向调节块154施加作用力，该作用力促使直接或间接的调节块154抵接于功能组件40，功能组件40进而压紧第一压电模块12。在本实施中，通过调节第二调节件153，从而改变功能组件40和第一压电模块12之间的作用力，进而确保第一压电模块12和功能组件40之间的预紧力达到预设值。
下面结合附图介绍第二实施例的两种可行的子实施方式(包括第五子实施方式、第六子实施方式)。
请参照图42，在第五子实施方式中，所述调节块154设有第三凸起部T3，所述第一边框部112背离所述功能组件40的一侧设有第四凸起部T4，且所述第四凸起部T4相较于所述第三凸起部T3临近于所述功能组件40。所述第二调节件153为可弯曲的拉线(也可称之为拉丝)，所述调节件的相背两端分别缠绕于所述第三凸起部T3和所述第四凸起部T4上。由于第四凸起部T4相较于第三凸起部T3临近于功能组件40，因此，第二调节件153将呈倾斜状态，从而使得第二调节件153施加于调节块154的作用力的至少部分分力朝向功能组件40，从而能够使得第一压电模块12压紧功能组件40。在安装调试阶段，可以通过调节第三凸起部T3和第四凸起部T4之间的拉线的长度来使预紧力到达预设值。
请参照图43，在第六子实施方式中，所述调节组件15还包括第二支架155，所述第二支架155设置于所述第一边框部112背离所述功能组件40的一侧，且与所述调节块154相对设置。所述第二调节件153通过螺纹连接于所述第二支架155且穿过所述第二支架155，且所述第二调节件153抵接于所述调节块154背离所述功能组件40的一侧。
其中，第二支架155包括第二固定部1551和两个第二支撑部1552。第二固定部1551与第一边框部112间隔设置。两个第二支撑部1552分别弯折连接于第二固定部1551的相背两端。第二支撑部1552远离第二固定部1551的一端连接于第一边框部112，从而实现将第二支架155固定在第一边框部112上。第二固定部1551具有螺纹孔，第二调节件153具有外螺纹，第二调节件153通过螺纹旋入于第二固定部1551上的螺纹孔中，通过螺纹旋合，使得第二调节件153稳定的固定在第二固定部1551上。并且，第二调节件153穿过螺纹孔后抵接于调节块154背离功能组件40的一侧。由于第二调节件153和第二固定部1551为螺纹配合，因此第二调节件153相对功能组件40的位置可调。第二调节件153越靠近功能组件40，第二调节件153对调节块154的抵接作用则越强，第一压电模块12对功能组件40的预紧力则越大，反之，第二调节件153越远离功能组件40，第二调节件153对调节块154的抵接作用则越弱，第一压电模块12对功能组件40的预紧力则越小。其中，所述第二调节件153可以但不仅限于为螺钉、螺丝、螺栓等具有螺纹的螺纹件。
请参照图42和图43，在上述第二实施例中，所述第一基座组件10还包括第一滚动体13，所述第一滚动体13设置于所述调节块154和所述功能组件40之间，且活动抵接于所述所述功能组件40和所述调节块154。可以理解的是，当第一压电模块12通电时，由于功能组件40将相对第一承载座11的调节块154运动，若功能组件40和调节块154直接接触，将会产生阻力较大的滑动摩擦，在经历一段时间后会导致磨损严重，进而造成第一压电模块12不能紧密抵接于功能组件40，而且，由于阻力较大，还会增大耗电量。本实施方式中，在功能组件40和调节块154之间设置第一滚动体13，从而可以使得调节块154、第一滚动体13、功能组件40三者之间为滚动摩擦，如此既能减小磨损，又能节省电量，还能使运动过程更顺畅。
下面结合附图介绍第三实施例的两种可行的子实施方式(包括第七子实施方式、第八子实施方式)。
请参照图44和图45，在第三实施例中，所述第一施力件121包括依次弯折连接的第一夹持部1213、第二夹持部1214、第三夹持部1215。所述第一夹持部1213、所述第三夹持部1215相对设置，且所述第二夹持部1214面向于所述功能组件40。所述第一夹持部1213上凸设有第一凸出部TC1，所述第二夹持部1214上凸设有第二凸出部TC2，所述第三夹持部1215上凸设有第三凸出部TC3。所述第一凸出部TC1和所述第三凸出部TC3用于共同夹持所述第一压电件122。所述第二凸出部TC2用于抵接所述第一压电件122，以使得所述第一压电模块12向所述功能组件40施加的预紧力达到预设值。
在本实施例中，第一施力件121的形状大致呈C字型，第一压电件122被夹设于呈C字型的第一施力件121中。第一施力件121上设有三个凸起部位，分别为第一凸出部TC1、第二凸出部TC2、第三凸出部TC3。其中，第一凸出部TC1和第三凸起部分别抵接于第一压电件122相背的两侧，从而实现第一压电件122的固定，以更好的发挥压电的性能。第二凸出部TC2面向于功能组件40，且抵接于第一压电件122，第二凸出部TC2用于确保第一摩擦件123抵接于功能组件40，以获得相应的预紧力。在设计调试阶段， 可以通过调节第二凸出部TC2的凸出高度来调节预紧力大小，以使预紧力达到预设值。
请参照图45，在第七子实施方式中，所述第一施力件121设置于所述收容空间Y1内，且所述收容空间Y1为所述第一边框部112上的凹槽。如此设置，可使得第一边框部112具有较高的强度而不易被损坏。
请参照图46，在第八子实施方式中，所述第一施力件121设置于所述收容空间Y1内，所述收容空间Y1贯穿所述第一边框部112。所述第一承载座11还包括第一挡板部113，所述第一挡板部113设置于所述第一边框部112背离所述功能组件40的一侧，且覆盖所述收容空间Y1，且抵接所述第二夹持部1214背离所述第一压电件122的一侧，以确保第一摩擦件123抵接于功能组件40，从而获得相应的预紧力。在本实施方式中，还可以通过调节第一挡板部113和第二夹持部1214之间的作用力来调节预紧力，增加了预紧力的调节方式，而且，第二挡板部为独立于第一边框部112的部件，从而可以便于第一挡板部113的更换，使得第一摩擦件123和功能组件40之间的预紧力随时可调。
进一步的，由于第一压电件122连接于第一施力件121，因而第一压电件122在振动时将受到第一施力件121的约束。若第一施力件121的约束作用过强，则会导致第一施力件121的振幅较小，从而不能很好的驱动功能组件40，此时只能将第一施力件121做的更大，才能提供较大的振幅，然而，第一施力件121的体积增大后会导致摄像头模组100的体积增大。
可选的，所述第一施力件121向所述第一压电件122提供弹性约束。所谓的弹性约束是指第一施力件121会因第一压电件122的振动而产生相应的弹性形变，换而言之，第一施力件121对第一压电件122的约束作用较小，因而第一压电件122的振动范围更大，或者说，第一压电件122具有较大的振幅。
可选的，所述第一施力件121上设有凹槽或者通孔。凹槽和通孔的形状可以但不仅限于为圆形、矩形、椭圆形等。不管设置凹槽还是通孔，第一施力件121的刚度都会减小，从而更容易发生形变。
具体来讲，在第一施力件121上设置凹槽或通孔后，第一施力件121的形变能力增强，其对第一压电件122的约束作用则减弱，从而可以确保较小体积的第一压电件122具有较大的振幅。第一压电件122的振动可分为两个方向，包括第一振动方向和第二振动方向，其中，第一振动方向平行于预紧力方向，第二振动方向平行于功能组件40的运动方向。第一压电件122在第一振动方向上的振幅增大可以使预紧力增大，从而增大功能组件40的加速度。第一压电件122在第二振动方向上的振幅增大，则意味着在单位时间内第一压电件122可以驱动功能组件40运动更大的位移，即功能组件40的运动速度更快。因此，从以上分析可以看出，在第一施力件121上设置凹槽或通孔后，不仅可以确保较小体积的第一压电件122具有较大的振幅，还可以使得功能组件40更快速的运动到目标位置。
请参照图47，所述第一压电模块12用于驱动所述功能组件40沿光轴A方向运动，也就是说，第一压电模块12用于实现摄像头模组100的变焦功能。所述第一基座组件10还包括稳定组件16，所述稳定组件16设置于所述功能组件40背离所述第一压电模块12的一侧。所述稳定组件16用于稳定所述功能组件40，以避免或削弱所述功能组件40在所述第一压电模块12作用下产生倾斜。
具体的，第一压电模块12在驱动功能组件40沿光轴A方向运动的过程中，功能组件40将受到两个方向的作用力，包括第一作用力F1和第二作用力F2。其中，F1的方向为第一压电模块12指向稳定组件16的方向，即F1为第一压电模块12对功能组件40的预紧力。F2平行于光轴A方向，用于驱动功能组件40沿光轴A方向运动。可以理解的是，F2将形成一力矩，该力矩欲使功能组件40倾斜。本实施例提供的稳定组件16则是用于解决功能组件40的倾斜问题，下面介绍两种解决方案。
请参照图47，在一种实施方式中，所述稳定组件16包括间隔设置的第一磁性件161和第二磁性件162，所述第一磁性件161承载于所述第一承载座11，所述第二磁性件162承载于所述功能组件40。所述第一磁性件161用于磁性吸附所述第二磁性件162。因此，功能组件40将受到来自于第一磁性件161的第三作用力F3，F3的方向与F1的方向相同。由于引入了F3，功能组件40在该方向的受力增大为F1+F3。因此，F1、F2、F3的合力更偏向于F1的方向，从而在一定程度上弱化了F2的作用，进而削弱了功能组件40的倾斜问题。
请参照图48，在另一种实施方式中，所述稳定组件16承载于所述第一承载座11，且抵接于所述功能组件40。所述稳定组件16为压电模块，且用于在通电时通过逆压电效应协同所述第一压电模块12共同驱动所述功能组件40沿所述光轴A方向运动。在本实施例中，一方面，稳定组件16将抵接功能组件40而对功能组件40产生第四作用力F4，即F4为稳定组件16对功能组件40施加的预紧力，F4的方向与F1的方向相反。另一方面，稳定组件16为压电模块，在驱动功能组件40沿光轴A方向运动的过程中，稳定组件16对功能组件40施加第五作用力F5，F5的方向与F2的方向相同，因此，由F5形成的力矩将平衡由F2形成的力矩，从而可以避免功能组件40的产生倾斜。
下面以图49至图54所示结构形式来介绍摄像头模组100，在不冲突的情况下，图49至图54所示的结构特征也可以结合到前面的实施例中。
请参照图49和图50，所述摄像头模组100包括功能组件40、以及用于驱动功能组件40的第一基座组件10。所述第一基座组件10包括第一承载座11、第一压电模块12。其中，第一承载座11具有第一空间X1，所述第一空间X1用于收容所述功能组件40。所述第一压电模块12承载于所述第一承载座11。
请参照图49，功能组件40包括功能器件41、载体架42及摩擦片43。其中，功能器件41承载于载体架42，功能器件41可以但不仅限于通过螺纹、卡扣或点胶的方式与载体配合，功能器件41可以为镜头。摩擦片43固定于载体架42的外壁，且抵接于第一压电模块12。摩擦片43采用耐磨材料，材料选型可以与第一摩擦件123相同。摩擦片43可以但不仅限于采用氧化铝(Al2O3)、氧化硅(SiO2)、氧化锆(ZrO2)或碳纤维、聚酯纤维、铝、铁、铜、不锈钢等耐磨材料。摩擦片43与第一压电模块12形成点接触、或面接触、或线接触。
请参照图50，所述第一承载座11包括第一底板部111、第一边框部112。其中，第一边框部112弯折连接于第一底板部111的周缘且与第一底板部111共同构成第一空间X1。第一底板部111用于承载功能组件40。
请参照图51，所述第一基座组件10还包括第一滚动体13。所述第一滚动体13设置于所述载体架42背离第一压电组件的一侧，且活动抵接于载体架42和第一边框部112。所述第一滚动体13用于在载体架42相对第一边框部112运动的过程中滚动，以减小摩擦。必要情况下可以对第一滚动体13添加一定的润滑剂以进一步减小阻力。可选的，第一滚动体13采用中间略小，两头大的滚珠。所述载体架42和第一边框部112均设有第一凹槽C1，且两个第一凹槽C1相对设置，第一滚动体13设置于两个第一凹槽C1内。可选的，其中一个第一凹槽C1为V字型，另外一个第一凹槽C1为U字型，目的是避免因公差造成第一滚动体13卡住的风险。
请参照图52至图53，所述第一压电模块12包括第一摩擦件123、第一压电件122、第一施力件121。其中，第一施力件121连接于第一压电件122。第一摩擦件123连接于第一压电件122，且抵接于摩擦片43。所述第一压电件122用于在通电时驱动第一摩擦件123带动功能组件40相对所述第一承载座11运动。第一边框部112具有收容空间Y1，收容空间Y1连通第一空间X1。第一压电件122、第一施力件121设置于收容空间Y1内。
请参照图50和图52，第一边框部112还具有穿孔K4，穿孔K4贯穿第一边框部112且连通收容空间Y1。所述第一基座组件10还包括第一调节件151和弹性调节件157。所述第一调节件151具有外螺纹，穿孔K4为螺纹孔，第一调节件151通过螺纹旋合于穿孔K4内。所述弹性调节件157设置于第一调节件151和第一施力件121之间，且弹性调节件157的相背两端分别抵接于第一调节件151和第一施力件121。弹性调节件157具有弹性，在第一调节件151的抵接作用下，弹性调节件157呈压缩状态，从而向第一压电件122提供弹性约束。在安装调试阶段，可以通过改变第一调节件151旋入穿孔K4的深度来改变弹性调节件157对第一施力件121的正压力，从而使得第一摩擦件123向功能组件施加的预紧力达到预设值。其中，第一调节件151可以但不仅限于为螺丝、螺钉、螺栓等。弹性调节件157可以但不仅限于为弹簧。
请参照图54，所述第一施力件121包括依次弯折连接的第一夹持部1213、第二夹持部1214、第三夹持部1215。所述第一夹持部1213、所述第三夹持部1215相对设置，且所述第二夹持部1214面向于所述功能组件40。所述第一夹持部1213上凸设有第一凸出部TC1，所述第二夹持部1214上凸设有第二凸出部TC2，所述第三夹持部1215上凸设有第三凸出部TC3。所述第一凸出部TC1和所述第三凸出部TC3用于共同夹持所述第一压电件122。所述第二凸出部TC2用于抵接所述第一压电件122，以使得所述第一压电模块12向所述功能组件40施加的预紧力达到预设值。
可选的，所述第一压电件122在工作时同时激发多个模态，以使得所述多个模态耦合。具体而言，在向第一压电件122施加一定频率的交流电信号后，第一压电件122同时激发出多个模态。第一压电件122依靠多个模态耦合产生微幅振动和驱动力，然后通过第一摩擦件123将多次累积的微幅振动转化为功能组件40的宏观直线运动，从而实现驱动功能。可以理解的是，第一压电件122激发多个模态，且多个模态耦合，相较于第一压电件122只激发一个模态而言，多个模态耦合后第一压电件122产生的能量密度更大，即驱动力更大，在相同驱动力的条件下，多个模态耦合的第一压电件122的体积可以做的更小。
其中，模态耦合可以但不仅限于为一阶伸长(L1)振动模态和二阶弯曲振动模态(B2)相耦合的L1-B2工作模态，或两个正交方向一阶弯曲(B1)相耦合的B1-B1工作模态等。
申请人在研究中发现，基于一阶伸长(L1)振动模态和二阶弯曲振动模态(B2)相耦合的工作模态的第一压电件在一定频率施加电压后，在第一压电件与功能组件的接触面可产生类似椭圆轨迹的运动，然后通过第一摩擦件摩擦推动功能组件进行直线运动。其中，第一压电件是第一压电模块中的核心部件，主要由压电材料块体或薄膜形成，因此这决定了压电材料的压电性能(主要是压电常数d33)与第一压电件的性能(如：驱动力、速度、驱动电压等)息息相关。常用压电材料的d33通常在100-600pC/N左右，少部分单晶材料的d33可以达到2000-4000pC/N。但是尽管如此，一般第一压电件的驱动电压都是在几百上千伏，所以通常第一压电件的主要应用场景是在大型设备，如工业机器人、高精密平移台等。
换言之，目前利用L1-B2双振动模态耦合的第一压电件普遍存在驱动电压较高、结构复杂、或者制作困难等缺点，且第一压电件普遍使用压电陶瓷制作，能量密度与压电单晶相比较低，不易实现微纳米级的精度控制，且不易实现小型化。现有使用压电单晶材料制作的第一压电件虽然体积较小，输出性能高，但是所需驱动电压仍然较大(＞100V)。
为解决上述技术问题，申请人经过研究提出一种第一压电件，可有效克服第一压电件结构复杂、制作困难和驱动电压较高等缺点，可以在小型化的前提下保证性能输出，可应用于摄像头模组的驱动。
需说明的是，以下实施例中可能出现编号与前面实施例中的编号相同，但是特征不同的情况，这种情况应以特征为准，不应以编号为准。
请参阅图55和图56，图55是本申请一些实施例中第一压电件和第一摩擦件的结构示意图，图56是图55实施例中第一压电件的压电本体的结构示意图。
第一压电件122包括多个堆叠设置的压电本体31，第一摩擦件123设置在压电本体31上。其中，第一摩擦件123可沿压电本体31的长度方向或者宽度方向粘接在压电本体31表面中心位置或者表面轴对称位置。压电本体31产生运动时可带动第一摩擦件123移动，从而可依靠第一摩擦件123与功能组件40之间的摩擦接触，驱动功能组件40移动。
压电本体31大致呈矩形板状或者矩形体结构，可采用诸如压电陶瓷、压电单晶、织构陶瓷等材料制成。优选地，压电本体31可采用铌铟酸铅-铌镁酸铅-钛酸铅弛豫铁电单晶(PIN-PMN-PT单晶)制成。当然，压电本体31也可为其他形状，不作赘述。
第一摩擦件123可以设有一个或者多个。当第一摩擦件123为1个时，1个第一摩擦件123可沿压电本体31的长度方向或者宽度方向设于压电本体31表面中心位置。当第一摩擦件123为多个时，多个第一摩擦件123可沿压电本体31的长度方向或者宽度方向设于压电本体31表面轴对称位置。
其中，图55中示出了第一压电件122的X、Y、Z三个方向以便于下文中进行相应描述，其中，Z方向可为压电本体31的厚度方向，X方向、Y方向可分别为压电本体31投影于XY平面的相邻两边沿的延伸方向，或者，X方向、Y方向可分别为压电本体31的长度方向和宽度方向。应理解，在一些实施例中，X方向可为第一预设方向，Y方向可为第二预设方向；在另一些实施例中，X方向可为第二预设方向，Y方向可为第一预设方向。
在一实施例中，多个压电本体31沿Z方向且按照相邻两个压电本体31的极化方向所指的方向相反的方式堆叠设置，极化方向可如图56中所示的P方向。应理解，每一压电本体31本身的极化方向基本一致，在堆叠时相邻两个压电本体31的极化方向所指的方向相反。
压电本体31可包括沿Z方向上相对设置的第一表面311和第二表面312，第一表面311设置有第一电极层3101，第二表面312设置有第二电极层3102。第一摩擦件123设于多个压电本体31的侧面，该侧面设于第一表面311和第二表面312之间并分别连接第一表面311和第二表面312。其中，第一电极层3101可被划分为多个电极，第二电极层3102可为一体形状的电极，即第二电极层3102的电极为一体结构。
在一实施例中，相邻两个压电本体31的第一表面311可通过第一电极层3101直接粘接，和/或者，相邻两个压电本体31的第二表面312可通过第二电极层3102直接粘接，关于该部分实施方式将在下文中依次说明。
其中，第一电极层3101可通过丝印导电银浆或者导电胶的方式形成于第一表面311，第二电极层3102可通过丝印导电银浆或者导电胶的方式形成于第二表面312。如图55所示，第一压电件122包括两个沿Z方向堆叠设置的压电本体31，且两个压电本体31的第二表面312通过导电银浆或者导电胶形成的第二电极层3102进行直接粘接连接。可以理解的，第二表面312上丝印的导电银浆或者导电胶不仅用于形成第二电极层3102以实现电性功能，还可用于两个压电本体31之间的粘接介质，以实现两个压电本体31的直接粘接连接。换言之，第一电极层3101和第二电极层3102可采用导电银浆或者导电胶制成，其可以在一定条件(例如加热或者加压)下实现粘接功能。
当然，在其他实施方式中，可以是两个压电本体31的第一表面311可通过导电银浆或者导电胶形成的第一电极层3101进行直接粘接连接。即第一表面311上丝印的导电银浆或者导电胶不仅用于形成第一电极层3101以实现电性功能，还可用于两个压电本体31之间的粘接介质，实现两个压电本体31的粘接连接。
导电胶一般是通过基体树脂的粘接作用把导电粒子结合在一起，形成导电通路，实现被粘材料的导电连接。其中，基体树脂是一种胶黏剂,可以选择适宜的固化温度进行粘接。
导电银浆的主要组成成为为树脂、溶剂、助剂、银粉等，其具有固化温度低、粘接强度高的特点，可以实现被粘材料的导电连接。
在一实施例中，第一电极层3101与第一表面311沿X方向延伸的边沿间隔设置，并覆盖于第一表面311沿Y方向延伸的边沿。第二电极层3102与第二表面312沿Y方向延伸的边沿间隔设置，并覆盖于第二表面312沿X方向延伸的边沿。其中，第一电极层3101可被划分为沿X方向间隔设置的第一电极3101a和第二电极3101b。第一电极3101a覆盖于第一表面311沿Y方向延伸的一边沿，第二电极3101b覆盖于第一表面311沿Y方向延伸的另一边沿。
可以理解的，第一电极层3101可与第一表面311沿X方向延伸的一个边沿间隔设置，或者第一电极层3101可与第一表面311沿X方向延伸的两个相对设置的边沿均间隔设置。第二电极层3102可与第二表面312沿Y方向延伸的两个相对设置的边沿均间隔设置。第二电极层3102可覆盖于第二表面312沿X方 向延伸的一个边沿，或者第二电极层3102可覆盖于第二表面312沿X方向延伸的两个相对设置的边沿。
在本实施例中，可通过在第一电极3101a和第二电极3101b上分别施加预设的驱动电压，就可以激发压电本体31整体产生L1-B2双振动模态，使得第一摩擦件123与功能组件40的接触面可产生椭圆轨迹的运动，进而通过第一摩擦件123与功能组件40之间的摩擦作用，推动功能组件40进行宏观直线运动。其中，第一电极3101a和第二电极3101b可分别施加相位差为±k(pi/2)(k为整数)的正弦或余弦交流电压，第二电极层3102可作为接地端。
第一压电件122还可包括设于多个压电本体31侧面的第一外电极301、第二外电极302以及第三外电极303。第一外电极301电性连接各压电本体31上的第一电极3101a，以使得各压电本体31上的第一电极3101a在电路上为并联结构。第二外电极302电性连接各压电本体31上的第二电极3101b，以使得各压电本体31上的第二电极3101b在电路上为并联结构。第三外电极303电性连接各压电本体31上的第二电极层3102，以使得各压电本体31上的第二电极层3102在电路上为并联结构。
第一外电极301至少部分覆盖于压电本体31大体平行于YZ平面的一侧面，以使得第一外电极301能够与两个压电本体31上的第一电极3101a分别电性连接。第二外电极302至少部分覆盖于压电本体31大体平行于YZ平面的另一侧面，以使得第二外电极302能够与两个压电本体31的第二电极3101b分别电性连接。第三外电极303至少部分覆盖与压电本体31大体平行于XZ平面的侧面，以使得第三外电极303能够与两个压电本体31的第二电极层3102分别电性连接。
本实施例提供的第一压电件122，通过设置多个堆叠设置的压电本体，并设置外电极电性连接各压电本体的对应电极，使得各压电本体的对应电极在电路上形成并联结构，进而使得在相同的预设电压驱动下，每个压电本体均可产生L1-B2双振动模态，整个第一压电件122即可通过该多个压电本体的L1-B2双振动模态实现相应的运动状态。另外，本实施例通过多层压电本体堆叠结构可以提高驱动器的输入功率，从而获得更大的驱动力。此外，在驱动器总厚度不变的情况下，多层压电本体堆叠结构可以有效降低驱动器的驱动电压(<100V)。本实施例进一步通过导电胶或者导电银浆形成电极层以实现电性功能，并在压电本体表面形成电极层并通过电极层直接粘接相邻的两个压电本体，可以减小驱动器的整体厚度。其中，外电极可连接于电子设备的电路板，在电路板上的驱动电路或者相关控制器件例如芯片的控制下可以对压电本体施加预设的驱动电压。
可以理解的，本申请实施例提供的第一压电件122是基于L1-B2双振动模态之间的耦合以实现相应的运动状态。当然，在其他实施方式中，也可以采用其他振动模态的耦合方式，以实现第一摩擦件123的椭圆形运动轨迹。
请参阅图57和图58，图57是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图，图58是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图。其中，图57和图58实施例中第一压电件122与图55实施例中第一压电件122的区别在于：堆叠的压电本体31的数量不同。
如图57所示，第一压电件122包括三个堆叠设置的压电本体31以及设置在三个压电本体31侧面的第一摩擦件123。如图58所示，第一压电件122包括四个堆叠设置的压电本体31以及设置在四个压电本体31侧面的第一摩擦件123。可以理解的，压电本体31的数量还可是其他多个，关于压电本体31和第一摩擦件123的技术特征可参考前述实施例中的压电本体31和第一摩擦件123。
其中，多个压电本体31沿Z方向且按照相邻两个压电本体31的极化方向所指的方向相反的方式堆叠设置，极化方向可如图中所示的P方向。应理解，每一压电本体31本身的极化方向基本一致，即每一压电本体31的极化方向可以由第一表面指向第二表面，或者每一压电本体31的极化方向可以由第二表面指向第一表面。在堆叠时相邻两个压电本体31的极化方向所指的方向相反，即在堆叠时，相邻两个压电本体31的第一表面相互靠近，或者相邻两个压电本体31的第二表面相互靠近。
如图57所示，三个压电本体自上而下依次为第一压电本体31a、第二压电本体31b、第三压电本体31c。第一压电本体31a的第二表面和第二压电本体31b的第二表面相接，第二压电本体31b的第一表面和第三压电本体31c的第一表面相接。即第一压电本体31a和第二压电本体31b可通过导电银浆或者导电胶形成的第二电极层进行粘接连接，第二压电本体31b和第三压电本体31c可通过导电银浆或者导电胶形成的第一电极层进行粘接连接。
如图58所示，四个压电本体自上而下依次为第一压电本体31a、第二压电本体31b、第三压电本体31c、第四压电本体31d。第一压电本体31a的第二表面和第二压电本体31b的第二表面相接，第二压电本体31b的第一表面和第三压电本体31c的第一表面相接，第三压电本体31c的第二表面和第四压电本体31d的第二表面相接。即第一压电本体31a和第二压电本体31b可通过导电银浆或者导电胶形成的第二电极层进行直接粘接连接，第二压电本体31b和第三压电本体31c可通过导电银浆或者导电胶形成的第一电极层进行直接粘接连接，第三压电本体31c和第四压电本体31d可通过导电银浆或者导电胶形成的第二电极层进行直接粘接连接。
本实施例提供的第一压电件122，通过设置多个堆叠设置的压电本体，并设置外电极电性连接各压电本体的对应电极，使得各压电本体的对应电极在电路上形成并联结构，进而使得在相同的预设电压驱动下， 每个压电本体均可产生L1-B2双振动模态，整个第一压电件122即可通过该多个压电本体的L1-B2双振动模态实现相应的运动状态。另外，本实施例通过多层压电本体堆叠结构可以提高第一压电件122的输入功率，从而获得更大的驱动力。此外，在第一压电件122总厚度不变的情况下，多层压电本体堆叠结构可以有效降低第一压电件122的驱动电压(<100V)。本实施例进一步通过导电胶或者导电银浆形成电极层以实现电性功能，并通过导电胶或者导电银浆实现两个压电本体之间的直接粘接连接，可以减小第一压电件122的整体厚度。
请参阅图59和图60，图59是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图，图60是图59实施例中第一压电件的压电本体的结构示意图。
第一压电件122大致可包括多个堆叠设置的压电本体41以及设置在压电本体41特定位置的第一摩擦件123，即第一摩擦件123设置在压电本体41上未设置驱动电极的侧面。其中，第一摩擦件123可沿压电本体41的长度方向或者宽度方向粘接在压电本体41表面中心位置或者表面轴对称位置。压电本体41产生运动时可带动第一摩擦件123移动，从而可依靠第一摩擦件123与功能组件40之间的摩擦接触，驱动功能组件40移动。其中，第一摩擦件123可为前述实施例中的第一摩擦件123，不作赘述。
在一实施例中，多个压电本体41沿Z方向且按照相邻两个压电本体41的极化方向所指的方向相反的方式堆叠设置，极化方向可如图58中所示的P方向。应理解，每一压电本体41本身的极化方向基本一致，在堆叠时相邻两个压电本体41的极化方向所指的方向相反。
压电本体41可包括沿Z方向上相对设置的第一表面411和第二表面412，第一表面411设置有第一电极层3101，第二表面312设置有第二电极层4102。其中，第一电极层4101可被划分为多个电极，第二电极层4102可为一体形状的电极，即第二电极层4102的电极为一体结构。
其中，第一电极层4101可通过丝印导电银浆或者导电胶的方式形成于第一表面411，第二电极层4102可通过丝印导电银浆或者导电胶的方式形成于第二表面412。如图57所示，第一压电件122包括两个沿Z方向堆叠设置的压电本体41，且两个压电本体41的第二表面412通过导电银浆或者导电胶形成的第二电极层4102进行直接粘接连接。可以理解的，第二表面412上丝印的导电银浆或者导电胶不仅用于形成第二电极层4102以实现电性功能，还可用于两个压电本体41之间的粘接介质，以实现两个压电本体41的直接粘接连接。
在一实施例中，第一电极层4101与第一表面411沿Y方向延伸的边沿间隔设置，并覆盖于第一表面411沿X方向延伸的边沿。第二电极层4102与第二表面412沿X方向延伸的边沿间隔设置，并覆盖于第二表面412沿Y方向延伸的边沿。可以理解的，第一电极层4101可与第一表面411沿Y方向延伸的一个边沿间隔设置或者两个相对设置的边沿均间隔设置，第一电极层4101可覆盖于第一表面411沿X方向延伸的两个相对设置的边沿。第二电极层4102可与第二表面412沿X方向延伸的两个相对设置的边沿均间隔设置，第二电极层4102可覆盖于第二表面412沿Y方向延伸的一个边沿或者两个相对设置的边沿。
其中，第一电极层4101可被划分为大致呈阵列排列的第一电极4101a、第二电极4101b、第三电极4101c和第四电极4101d。
第一电极4101a和第三电极4101c呈对角设置，并划分为一组即A组电极，可施加相同的驱动电压。第二电极4101b和第四电极4101d呈对角设置，并划分为一组即B组电极，可施加相同的驱动电压。
在本实施例中，可通过在A组电极和B组电极上分别施加预设的驱动电压，就可以激发压电本体41整体产生L1-B2双振动模态，使得第一摩擦件123与功能组件40的接触面可产生椭圆轨迹的运动，进而通过第一摩擦件123与功能组件40之间的摩擦作用，推动功能组件40进行宏观直线运动。其中，A组电极和B组电极可分别施加相位差为±k(pi/2)(k为整数)的正弦或余弦交流电压，第二电极层4102可作为接地端。
第一压电件122还可包括设于多个压电本体41侧面的第一外电极401、第二外电极402、第三外电极403、第四外电极404以及第五外电极405。第一外电极401电性连接各压电本体41上的第一电极4101a，以使得各压电本体41上的第一电极4101a在电路上为并联结构。第二外电极402电性连接各压电本体41上的第二电极4101b，以使得各压电本体41上的第二电极4101b在电路上为并联结构。第三外电极403电性连接各压电本体41上的第三电极4101c，以使得各压电本体41上的第三电极4101c在电路上为并联结构。第四外电极404电性连接各压电本体41上的第四电极4101d，以使得各压电本体41上的第四电极4101d在电路上为并联结构。第五外电极405电性连接各压电本体41上的第二电极层4102，以使得各压电本体41上的第二电极层4102在电路上为并联结构。
在一实施例中，第一外电极401至少部分覆盖于压电本体41大体平行于XZ平面的一侧面，以使得第一外电极401能够与两个压电本体41上的第一电极4101a分别电性连接。第二外电极402至少部分覆盖于压电本体41大体平行于XZ平面的另一侧面，以使得第二外电极402能够与两个压电本体41的第二电极4101b分别电性连接。第三外电极403与第二外电极402设于压电本体41的同侧，且能够与两个压电本体41上的第三电极4101c分别电性连接。第四外电极404与第一外电极401设于压电本体41的同侧，且能够与两个压电本体41上的第四电极4101d分别电性连接。第五外电极405至少部分覆盖与压电本体 41大体平行于YZ平面的侧面，以使得第五外电极405能够与两个压电本体41的第二电极层4102分别电性连接。
本实施例提供的第一压电件122，通过设置多个堆叠设置的压电本体，并设置外电极电性连接各压电本体的对应电极，使得各压电本体的对应电极在电路上形成并联结构，进而使得在相同的预设电压驱动下，每个压电本体均可产生L1-B2双振动模态，整个第一压电件122即可通过该多个压电本体的L1-B2双振动模态实现相应的运动状态。另外，本实施例通过多层压电本体堆叠结构可以提高第一压电件122的输入功率，从而获得更大的驱动力。此外，在第一压电件122总厚度不变的情况下，多层压电本体堆叠结构可以有效降低第一压电件122的驱动电压(<100V)。本实施例进一步通过导电胶或者导电银浆形成电极层以实现电性功能，并通过导电胶或者导电银浆实现两个压电本体之间的直接粘接连接，可以减小第一压电件122的整体厚度。
请参阅图61和图62，图61是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图，图62是本申请另一些实施例中第一压电件和第一摩擦件的结构示意图。
如图61所示，第一压电件122包括三个堆叠设置的压电本体41以及设置在三个压电本体31侧面的第一摩擦件123。如图62所示，第一压电件122包括四个堆叠设置的压电本体41以及设置在四个压电本体41侧面的第一摩擦件123。可以理解的，压电本体41的数量还可是其他多个，关于压电本体41和第一摩擦件123的技术特征可参考前述实施例中的压电本体和第一摩擦件123。
其中，多个压电本体41沿Z方向且按照相邻两个压电本体41的极化方向所指的方向相反的方式堆叠设置，极化方向可如图中所示的P方向。应理解，每一压电本体41本身的极化方向基本一致，即每一压电本体41的极化方向可以由第一表面指向第二表面，或者每一压电本体41的极化方向可以由第二表面指向第一表面。在堆叠时相邻两个压电本体31的极化方向所指的方向相反，即在堆叠时，相邻两个压电本体41的第一表面相互靠近，或者相邻两个压电本体41的第二表面相互靠近。
如图61所示，三个压电本体自上而下依次为第一压电本体41a、第二压电本体41b、第三压电本体41c。第一压电本体41a的第二表面和第二压电本体41b的第二表面相接，第二压电本体41b的第一表面和第三压电本体41c的第一表面相接。即第一压电本体41a和第二压电本体41b可通过导电银浆或者导电胶形成的第二电极层进行直接粘接连接，第二压电本体41b和第三压电本体41c可通过导电银浆或者导电胶形成的第一电极层进行直接粘接连接。
如图62所示，四个压电本体自上而下依次为第一压电本体41a、第二压电本体41b、第三压电本体41c、第四压电本体41d。第一压电本体41a的第二表面和第二压电本体41b的第二表面相接，第二压电本体41b的第一表面和第三压电本体41c的第一表面相接，第三压电本体41c的第二表面和第四压电本体41d的第二表面相接。即第一压电本体41a和第二压电本体41b可通过导电银浆或者导电胶形成的第二电极层进行直接粘接连接，第二压电本体41b和第三压电本体41c可通过导电银浆或者导电胶形成的第一电极层进行直接粘接连接，第三压电本体41c和第四压电本体41d可通过导电银浆或者导电胶形成的第二电极层进行直接粘接连接。
本实施例提供的第一压电件122，通过设置多个堆叠设置的压电本体，并设置外电极电性连接各压电本体的对应电极，使得各压电本体的对应电极在电路上形成并联结构，进而使得在相同的预设电压驱动下，每个压电本体均可产生L1-B2双振动模态，整个第一压电件122即可通过该多个压电本体的L1-B2双振动模态实现相应的运动状态。另外，本实施例通过多层压电本体堆叠结构可以提高第一压电件122的输入功率，从而获得更大的驱动力。此外，在第一压电件122总厚度不变的情况下，多层压电本体堆叠结构可以有效降低第一压电件122的驱动电压(<100V)。本实施例进一步通过导电胶或者导电银浆形成电极层以实现电性功能，并通过导电胶或者导电银浆实现两个压电本体之间的直接粘接连接，可以减小第一压电件122的整体厚度。即通过相对设置的第一电极层和第二电极层以使得压电本体能够实现相应的振动模态，同时通过第一电极层和/或者第二电极层直接粘接相邻的两个压电本体，可以减小第一压电件122的整体厚度，以获取更大的驱动力以及实现大行程驱动。
可以理解的，前述实施例中示例性的分别示意了2个、3个以及4个压电本体堆叠形成的第一压电件122，以及示意出了第一电极层可被划分为两个电极以及四个电极，本领域技术人员可以根据需要直接得出5个、6个以及其他多个压电本体堆叠形成的第一压电件122，以及第一电极层可被划分为其他多个电极的实施方式，不作赘述。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型，这些改进和润饰也视为本申请的保护范围。

Claims (40)

  1. 一种摄像头模组，其特征在于，所述摄像头模组包括：
    功能组件；以及
    第一基座组件，用于驱动所述功能组件，包括：
    第一承载座，具有第一空间，所述第一空间用于收容所述功能组件；以及
    第一压电模块，承载于所述第一承载座，包括：第一摩擦件、第一压电件、第一施力件，其中，所述第一施力件包括相对设置的第一面及第二面，所述第一面朝向所述功能组件，所述第一压电件设置于所述第一面，所述第一摩擦件设置于所述第一压电件，所述第一摩擦件与所述功能组件抵接；所述第一压电件用于在通电时驱动所述第一摩擦件带动所述功能组件相对所述第一承载座运动，且所述第一压电件在工作时激发至少一个模态。
  2. 如权利要求1所述的摄像头模组，其特征在于，所述第一施力件包括施力部和至少一个连接部，所述施力部和所述连接部相连接，其中，所述连接部连接于所述第一承载座，所述施力部连接于所述第一压电件，所述施力部用于使所述第一摩擦件抵接于所述功能组件。
  3. 如权利要求1所述的摄像头模组，其特征在于，所述第一施力件具有弹性，所述第一施力件的相背两端抵接于所述第一压电件和所述第一承载座，且弹性压缩。
  4. 如权利要求2所述的摄像头模组，其特征在于，所述第一承载座设有收容空间，所述收容空间包括第一子收容空间和第二子收容空间，所述第一子收容空间连通所述第一空间，所述第二子收容空间设于所述第一承载座背离所述第一空间的一侧且连通所述第一子收容空间，所述第一子收容空间用于收容至少部分所述第一压电件，所述第二子收容空间用于收容所述施力部和所述连接部。
  5. 如权利要求2所述的摄像头模组，其特征在于，所述施力部具有开口，所述第一压电件背离所述第一摩擦件的一侧至少部分显露于所述开口。
  6. 如权利要求1所述的摄像头模组，其特征在于，所述功能组件面向所述第一压电模块的一侧设有凹陷槽，所述第一摩擦件至少部分收容于所述凹陷槽内且抵接于所述凹陷槽的底壁。
  7. 如权利要求1所述的摄像头模组，其特征在于，所述第一施力件粘接于所述第一压电件。
  8. 如权利要求1所述的摄像头模组，其特征在于，所述功能组件在所述第一压电模块的驱动下沿第一方向运动，或沿第二方向运动，或沿第三方向运动；所述第一方向、所述第二方向及所述第三方向两两相互垂直。
  9. 如权利要求8所述的摄像头模组，其特征在于，所述功能组件具有相背设置的第一端面和第二端面，所述第一端面抵接所述第一承载座，所述第一端面和所述第二端面的相对方向为第三方向；当所述第一压电模块通电时，所述第一压电模块可驱动所述功能组件沿所述第三方向运动。
  10. 如权利要求8所述的摄像头模组，其特征在于，所述功能组件具有第一侧面、第二侧面及第三侧面，所述第一侧面和所述第三侧面相背设置且相背方向为第一方向；所述第一压电模块抵接于所述第二侧面，在所述第一方向上，所述功能组件的相背两侧与所述第一承载座间隔设置；当所述第一压电模块通电时，所述第一压电模块可驱动所述功能组件沿所述第一方向运动。
  11. 如权利要求10所述的摄像头模组，其特征在于，所述摄像头模组还包括第二基座组件，所述第二基座组件包括第二承载座以及承载于所述第二承载座的第二压电模块，所述第二基座组件具有第二空间，所述第二空间用于收容所述第一基座组件；所述功能组件还具有第四侧面，所述第四侧面与所述第二侧面相背设置且相背方向为第二方向；所述第二压电模块面向于所述第一侧面或所述第三侧面，所述第二压电模块用于驱动所述第一基座组件以带动所述功能组件沿所述第二方向运动。
  12. 如权利要求11所述的摄像头模组，其特征在于，所述摄像头模组还包括第三基座组件，所述第三基座组件包括第三承载座以及承载于所述第三承载座的第三压电模块，所述第三基座组件具有第三空间，所述第三空间用于收容所述第二基座组件；所述功能组件具有相背设置的第一端面和第二端面，所述第一端面抵接所述第一承载座，所述第一端面和所述第二端面的相对方向为第三方向；所述第三压电模块用于驱动所述第二基座组件以带动所述功能组件沿所述第三方向运动。
  13. 如权利要求12所述的摄像头模组，其特征在于，所述摄像头模组还包括限位件，所述限位件沿所述第二端面朝向所述第一端面的方向抵接于所述功能组件、所述第一承载座、所述第二承载座，且所述限位件连接于所述第二承载座。
  14. 如权利要求1-13任意一项所述的摄像头模组，其特征在于，所述功能组件包括功能器件和载体架，所述载体架套设于所述功能器件的外周且承载于所述第一承载座，所述载体架用于抵接所述第一压电模块的第一摩擦件，所述摄像头模组还包括感光元件，所述感光元件与所述功能器件相对设置，当所述第一压电模块通电时，所述功能器件将相对于所述感光元件运动，其中，所述功能器件为镜头。
  15. 如权利要求1所述的摄像头模组，其特征在于，所述第一承载座包括第一底板部以及环绕连接于所述第一底板部周缘的第一边框部，所述第一底板部和所述第一边框部共同围设而成所述第一空间，所述第一压电模块承载于所述第一边框部，所述第一边框部具有连通所述第一空间的收容空间，所述第一压电模 块至少部分设置于所述收容空间内。
  16. 如权利要求15所述的摄像头模组，其特征在于，所述第一基座组件还包括调节组件，所述调节组件包括设置于所述第一边框部背离所述功能组件一侧的第一调节件，所述第一调节件连接于所述第一施力件和所述第一边框部，所述第一调节件通过所述第一施力件使得所述第一压电模块向所述功能组件施加的预紧力达到预设值。
  17. 如权利要求16所述的摄像头模组，其特征在于，所述第一施力件包括相连接的施力部和至少一个连接部，所述施力部连接于所述第一压电件，所述连接部设置于所述第一边框部背离所述功能组件的一侧，且与所述第一边框部间隔设置，所述连接部连接于所述第一调节件，所述第一调节件用于调节所述连接部和所述第一边框部之间的间隔距离。
  18. 如权利要求17所述的摄像头模组，其特征在于，所述施力部背离所述功能组件的一侧设有第一凸起部，所述第一边框部背离所述功能组件的一侧设有第二凸起部，所述第二凸起部相较于所述第一凸起部临近于所述功能组件，所述第一调节件为可弯曲的拉线，所述第一调节件的相背两端分别缠绕于所述第一凸起部和所述第二凸起部上。
  19. 如权利要求17所述的摄像头模组，其特征在于，所述第一调节件为螺纹件，所述连接部具有第一过孔，所述第一边框部具有面对于所述过孔的第一调节孔，所述第一调节孔为螺纹孔，所述第一调节件穿过所述第一过孔且通过螺纹与所述第一调节孔连接。
  20. 如权利要求17所述的摄像头模组，其特征在于，所述第一调节件为凸设于所述第一边框部背离功能组件一侧的凸台，所述连接部具有第一过孔，所述第一调节件穿设于所述第一过孔内，且所述第一调节件远离所述功能组件的一端通过热铆、焊接或粘接方式连接于所述连接部。
  21. 如权利要求16所述的摄像头模组，其特征在于，所述第一施力件包括相连接的施力部和至少一个连接部，所述连接部连接于所述第一边框部，所述施力部连接于所述第一压电件，所述调节组件还包括第一支架，所述第一支架设置于所述第一边框部背离所述功能组件的一侧，且与所述第一施力件相对设置，所述第一调节件通过螺纹连接于所述第一支架且穿过所述第一支架，且所述第一调节件抵接于所述施力部背离所述功能组件的一侧。
  22. 如权利要求15所述的摄像头模组，其特征在于，所述第一边框部设有位于所述功能组件背离所述第一压电模块的一侧的收容孔，所述收容孔贯穿所述第一边框部，所述第一基座组件还包括调节组件，所述调节组件包括调节块、第二调节件，所述调节块至少部分设置于所述收容孔内，所述第二调节件设置于所述第一边框部背离所述功能组件一侧，且所述第二调节件连接于所述调节块和所述第一边框部，所述第二调节件用于迫使所述调节块抵接于所述功能组件，以使得所述第一压电模块向所述功能组件施加的预紧力达到预设值。
  23. 如权利要求22所述的摄像头模组，其特征在于，所述调节块设有第三凸起部，所述第一边框部背离所述功能组件的一侧设有第四凸起部，且所述第四凸起部相较于所述第三凸起部临近于所述功能组件，所述第二调节件为可弯曲的拉线，所述调节件的相背两端分别缠绕于所述第三凸起部和所述第四凸起部上。
  24. 如权利要求22所述的摄像头模组，其特征在于，所述调节组件还包括第二支架，所述第二支架设置于所述第一边框部背离所述功能组件的一侧，且与所述调节块相对设置，所述第二调节件通过螺纹连接于所述第二支架且穿过所述第二支架，且所述第二调节件抵接于所述调节块背离所述功能组件的一侧。
  25. 如权利要求22-24任意一项所述的摄像头模组，其特征在于，所述第一基座组件还包括第一滚动体，所述第一滚动体设置于所述调节块和所述功能组件之间，且活动抵接于所述所述功能组件和所述调节块。
  26. 如权利要求15所述的摄像头模组，其特征在于，所述第一施力件包括依次弯折连接的第一夹持部、第二夹持部、第三夹持部，所述第一夹持部、所述第三夹持部相对设置，且所述第二夹持部面向于所述功能组件；所述第一夹持部上凸设有第一凸出部，所述第二夹持部上凸设有第二凸出部，所述第三夹持部上凸设有第三凸出部，所述第一凸出部和所述第三凸出部用于共同夹持所述第一压电件，所述第二凸出部用于抵接所述第一压电件，以使得所述第一压电模块向所述功能组件施加的预紧力达到预设值。
  27. 如权利要求26所述的摄像头模组，其特征在于，所述第一施力件设置于所述收容空间内，且所述收容空间为所述第一边框部上的凹槽。
  28. 如权利要求26所述的摄像头模组，其特征在于，所述第一施力件设置于所述收容空间内，所述收容空间贯穿所述第一边框部，所述第一承载座还包括第一挡板部，所述第一挡板部设置于所述第一边框部背离所述功能组件的一侧，且抵接所述第二夹持部背离所述第一压电件的一侧。
  29. 如权利要求1所述的摄像头模组，其特征在于，所述第一压电模块用于驱动所述功能组件沿光轴方向运动，所述第一基座组件还包括稳定组件，所述稳定组件设置于所述功能组件背离所述第一压电模块的一侧，所述稳定组件用于稳定所述功能组件，以避免或削弱所述功能组件在所述第一压电模块作用下产生倾斜。
  30. 如权利要求29所述的摄像头模组，其特征在于，所述稳定组件包括间隔设置的第一磁性件和第二 磁性件，所述第一磁性件承载于所述第一承载座，所述第二磁性件承载于所述功能组件，所述第一磁性件用于磁性吸附所述第二磁性件。
  31. 如权利要求29所述的摄像头模组，其特征在于，所述稳定组件承载于所述第一承载座，且抵接于所述功能组件，所述稳定组件为压电模块，且用于在通电时通过逆压电效应协同所述第一压电模块共同驱动所述功能组件沿所述光轴方向运动。
  32. 如权利要求1所述的摄像头模组，其特征在于，所述第一施力件上设有凹槽或者通孔。
  33. 如权利要求1所述的摄像头模组，其特征在于，所述第一压电件在工作时同时激发多个模态，以使得所述多个模态耦合。
  34. 如权利要求1所述的摄像头模组，其特征在于，所述第一压电件包括多个堆叠设置的压电本体，每一所述压电本体包括相对设置的第一电极层和第二电极层；其中，相邻两个压电本体通过所述两个压电本体上的第一电极层进行粘接，和/或者，相邻两个压电本体通过所述两个压电本体上的第二电极层进行粘接。
  35. 如权利要求34所述的摄像头模组，其特征在于，每一所述压电本体的极化方向相同；所述极化方向为所述第一电极层指向所述第二电极层的方向，或者，所述极化方向为所述第二电极层指向所述第一电极层的方向。
  36. 如权利要求34所述的摄像头模组，其特征在于，所述第一电极层和所述第二电极层采用导电银浆或者导电胶制成。
  37. 如权利要求34所述的摄像头模组，其特征在于，每一所述压电本体包括相对设置的第一表面和第二表面，所述第一电极层形成于所述第一表面，所述第二电极层形成于所述第二表面；其中，所述第一表面或者所述第二表面的相邻两边沿的延伸方向分别为第一方向和第二方向，所述第一电极层覆盖于所述第一表面沿第二方向延伸的边沿，所述第二电极层覆盖于所述第二表面沿所述第一方向延伸的边沿。
  38. 如权利要求37所述的摄像头模组，其特征在于，所述第一电极层被划分为沿第一方向间隔设置的第一电极和第二电极，所述多个压电本体的侧面设有第一外电极、第二外电极和第三外电极；每一所述压电本体上的第一电极通过所述第一外电极实现并联，每一所述压电本体上的第二电极通过所述第二外电极实现并联，每一所述压电本体上的第二电极层通过所述第三外电极实现并联。
  39. 如权利要求37所述的摄像头模组，其特征在于，所述第一电极层被划分为呈阵列排列的第一电极、第二电极、第三电极和第四电极，所述第一电极和所述第三电极呈对角设置，所述第二电极和所述第四电极呈对角设置；其中，施加于所述第一电极和所述第三电极上的驱动电压相同，施加于所述第二电极和所述第四电极上的驱动电压相同。
  40. 一种电子设备，其特征在于，所述电子设备包括设备本体以及如权利要求1-39任意一项所述的摄像头模组，所述摄像头模组安装于所述设备本体。
PCT/CN2022/115632 2021-09-30 2022-08-29 摄像头模组及电子设备 WO2023051132A1 (zh)

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