CN114679527B

CN114679527B - Driving assembly, anti-shake module, camera shooting mechanism and electronic equipment

Info

Publication number: CN114679527B
Application number: CN202210307860.4A
Authority: CN
Inventors: 陈伟; 何雨航
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2024-04-19
Anticipated expiration: 2042-03-25
Also published as: CN114679527A

Abstract

The application provides a driving assembly, an anti-shake module, a camera shooting mechanism and electronic equipment, wherein the driving assembly comprises: the device comprises a fixed piece, a moving piece, a rotating shaft and a driving piece; the fixed piece is opposite to the moving piece and is arranged at intervals; the rotating shaft penetrates through the fixed piece and the moving piece; the driving piece is positioned between the fixed piece and the moving piece and is respectively abutted with the fixed piece and the driving piece, and the driving piece is configured to vibrate after being electrified so as to drive the moving piece to rotate relative to the rotating shaft. By the mode, high-precision and large-stroke motion control can be realized, and meanwhile, the power consumption of the driving assembly is reduced.

Description

Driving assembly, anti-shake module, camera shooting mechanism and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a driving assembly, an anti-shake module, a camera shooting mechanism and electronic equipment.

Background

With the continuous development of electronic devices, the electronic devices have become an indispensable entertainment tool and social tool in daily life of people. Taking a mobile phone as an example, in order to bring better shooting experience to a user, a driving structure for driving a lens to move is generally arranged in a shooting module of the mobile phone so as to improve the shooting effect of the shooting module in the mobile phone. However, the conventional driving structure is generally an electromagnetic driving, and such driving structure has a problem of large power consumption when realizing motion control with high accuracy and large stroke.

Disclosure of Invention

In one aspect, an embodiment of the present application provides a driving assembly, including: the device comprises a fixed piece, a moving piece, a rotating shaft and a driving piece; the fixed piece is opposite to the moving piece and is arranged at intervals; the rotating shaft penetrates through the fixed piece and the moving piece; the driving piece is positioned between the fixed piece and the moving piece, is respectively abutted with the fixed piece and the driving piece, and is configured to drive the moving piece to rotate relative to the rotating shaft.

Another aspect of the embodiments of the present application provides an anti-shake module, including: mount pad, lens subassembly and first drive assembly, just first drive assembly includes: the first fixing piece, the first moving piece, the first rotating shaft and the first driving piece; wherein the first fixing piece is opposite to the first moving piece and is arranged at intervals; the first rotating shaft penetrates through the first fixing piece and the first moving piece; the first driving piece is positioned between the first fixing piece and the first moving piece, is respectively abutted with the first fixing piece and the first driving piece, and is configured to vibrate after being electrified so as to drive the first moving piece to rotate relative to the first rotating shaft; the mounting seat is connected with the first moving part and can rotate along with the first moving part by taking the first direction as the axial direction; the lens component is arranged on the mounting seat.

In still another aspect, an embodiment of the present application provides an image capturing mechanism, including: the light sensing module and the anti-shake module are arranged on the light emergent path of the lens assembly.

The embodiment of the application also provides electronic equipment, which comprises: display screen, casing and above-mentioned camera shooting mechanism; the display screen is connected with the shell, an accommodating space is formed by surrounding the display screen and the shell together, and the camera shooting mechanism is positioned in the accommodating space.

According to the driving assembly provided by the embodiment of the application, the driving parts respectively abutted against the fixed part and the moving part are arranged between the fixed part and the moving part which are opposite and are arranged at intervals, and the rotating shafts penetrating through the fixed part and the moving part are arranged, and the driving parts can vibrate after being electrified so as to drive the moving part to rotate relative to the rotating shafts, so that the driving assembly can drive the lens to rotate by utilizing the rotation of the moving part. By the arrangement, shake in the shooting process can be compensated by driving the lens to rotate through the driving component, the piezoelectric driving characteristic can be utilized, high-precision and large-stroke motion control is realized, and the power consumption of the driving component is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an electronic device 10 according to an embodiment of the present application;

fig. 2 is an exploded view of the electronic device 10 of fig. 1;

fig. 3 is a schematic structural diagram of the image capturing mechanism 300 in fig. 2;

Fig. 4 is a schematic view of a partial cross-sectional structure of the camera mechanism 300 along v-v in fig. 3;

FIG. 5 is a schematic cross-sectional view of the anti-shake module 310 of FIG. 4;

FIG. 6 is an enlarged partial schematic view at A in FIG. 4;

FIG. 7 is another schematic diagram of the first drive assembly 312 of FIG. 6;

FIG. 8 is a schematic diagram of the transmission part 31244 in FIG. 7;

FIG. 9 is an enlarged partial schematic view at B in FIG. 4;

Fig. 10 is a schematic cross-sectional view of another part of the camera mechanism 300 along v-v in fig. 3;

FIG. 11 is a schematic cross-sectional view of the focusing module 340 of FIG. 10;

Fig. 12 is a schematic cross-sectional view of another part of the imaging mechanism 300 of fig. 3 along vi-vi.

Detailed Description

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, a device configured to receive/transmit communication signals via a wireline connection, such as via a public-switched telephone network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface, such as for example, for a cellular network, a Wireless Local Area Network (WLAN), a digital television network, such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal. A communication terminal configured to communicate through a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. The mobile phone is the electronic equipment provided with the cellular communication module.

The application is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present application, but do not limit the scope of the present application. Likewise, the following examples are only some, but not all, of the examples of the present application, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 2, fig. 1 is a schematic structural diagram of an electronic device 10 according to an embodiment of the application, and fig. 2 is an exploded structural diagram of the electronic device 10 in fig. 1.

The electronic device 10 provided in the embodiment of the present application may be a device with a shooting function, such as a mobile phone, a tablet computer, a notebook computer, and a smart watch, and the following description will be made with the electronic device 10 as a mobile phone. As shown in fig. 1-2, an electronic device 10 may include: display 100, housing 200, and imaging mechanism 300. The display screen 100 may be connected to the housing 200, and the two may be enclosed together to form the installation space 101. The image capturing mechanism 300 may be disposed in the installation space 101, and may be configured to receive light outside the installation space 101 for imaging. In this embodiment, the image capturing mechanism 300 may have an anti-shake function, and power consumption in the use process is low, so that not only the capturing effect of the image capturing mechanism 300 can be improved, but also the use time of the image capturing mechanism 300 can be prolonged.

Specifically, the display screen 100 may be used to provide an image display function for the electronic device 10, and when the user uses the photographing function of the electronic device 10, the display screen 100 may also present an imaging screen of the image capturing mechanism 300 to facilitate photographing by the user. As shown in fig. 1 to 2, the display screen 100 may be covered on one side of the housing 200, and the two may be adhered and fixed by an adhesive. The display screen 100 may include a transparent cover plate, a touch panel, and a display panel that are sequentially stacked. The surface of the transparent cover plate can have the characteristics of smoothness so as to facilitate touch operations such as clicking, sliding, pressing and the like. The transparent cover plate may be made of rigid material such as glass, or flexible material such as Polyimide (PI) and colorless Polyimide (Colorless Polyimide, CPI). The touch panel is disposed between the transparent cover plate and the display panel, and is configured to respond to a touch operation of a user, and convert the corresponding touch operation into an electrical signal to be transmitted to the processor of the electronic device 10, so that the electronic device 10 can respond to the touch operation of the user. The display panel is mainly used for displaying pictures and can be used as an interactive interface to instruct a user to perform the above touch operation on the transparent cover plate, and the display panel can use an OLED (Organic Light-Emitting Diode) screen or an LCD (Liquid CRYSTAL DISPLAY) screen to realize the image display function of the electronic device 10. In this embodiment, the transparent cover plate, the touch panel and the display panel may be bonded together by using an adhesive such as OCA (Optically CLEAR ADHESIVE, optical adhesive), PSA (Pressure SENSITIVE ADHESIVE ) or the like.

The case 200 may be used for various electronic devices required for mounting the electronic apparatus 10, and the case 200 may form the mounting space 101 together with the display screen 100. As shown in fig. 2, the housing 200 may include: a middle frame 210 and a rear shell 220. The display screen 100 may be covered on one side of the middle frame 210, the rear shell 220 may be covered on the other opposite side of the middle frame 210, and the three may be enclosed together to form the installation space 101. The installation space 101 may be divided into a first installation space 1011 defined by the display screen 100 and the middle frame 210, and a second installation space 1012 defined by the middle frame 210 and the rear case 220. Meanwhile, the first installation space 1011 may be used for installing electronic devices such as a fingerprint recognition sensor, a distance sensor, an infrared sensor, etc. to realize functions such as fingerprint unlocking, automatic screen extinction, brightness self-adjustment, etc. The second installation space 1012 may be used to install electronic devices such as a microphone, a speaker, a flash, a circuit board, and a battery, so as to perform functions such as voice communication, audio playback, and illumination.

The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

The middle frame 210 and the rear case 220 may be made of glass, metal, hard plastic, etc., so that the middle frame 210 and the rear case 220 have a certain structural strength. In addition, since the middle frame 210 and the rear case 220 are generally directly exposed to the external environment, the middle frame 210 and the rear case 220 may have a certain performance of wear resistance, corrosion resistance, scratch resistance, etc., or a layer of functional material for wear resistance, corrosion resistance, scratch resistance may be coated on the outer surfaces of the middle frame 210 and the rear case 220 (i.e., the outer surfaces of the electronic device 10). Optionally, a membrane such as texture, gradient color, photochromism, and electrochromic may be further designed on the rear case 220 to enhance the appearance of the electronic device 10. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly.

The image capturing mechanism 300 may be disposed in the installation space 101, and the image capturing mechanism 300 may receive external light for imaging. The imaging mechanism 300 may be disposed in the first installation space 1011 to perform front-end imaging, or may be disposed in the second installation space 1012 to perform rear-end imaging. Of course, the first installation space 1011 and the second installation space 1012 may be provided with the image pickup mechanism 300 at the same time. It should be understood that the front camera may be configured to image by the camera 300 receiving light from the side of the display 100, and the rear camera may be configured to image by the camera 300 receiving light from the side of the rear housing 220.

As shown in fig. 2, when the image capturing mechanism 300 is disposed in the first installation space 1011, the area of the display screen 100 corresponding to the image capturing mechanism 300 may be provided with the first light transmitting area 110, so that the light reflected by the external object can be irradiated to the image capturing mechanism 300 through the first light transmitting area 110, so that the image capturing mechanism 300 can perform imaging. Accordingly, when the image capturing mechanism 300 is disposed in the second installation space 1012, the area of the rear case 220 corresponding to the image capturing mechanism 300 may also be provided with the second light transmitting area 221, so that the light reflected by the external object can be irradiated to the image capturing mechanism 300 through the second light transmitting area 221, so as to facilitate the image capturing by the image capturing mechanism 300. The first light-transmitting area 110 and the second light-transmitting area 221 may be light-transmitting holes, that is, corresponding holes are formed on the display screen 100 and the rear case 220 for transmitting light. Alternatively, the display screen 100 and the rear case 220 may be partially transparent to form the first light-transmitting area 110 and the second light-transmitting area 221, and only external light can be irradiated to the image capturing mechanism 300 through the first light-transmitting area 110 and the second light-transmitting area 221.

Referring to fig. 3 to 5, fig. 3 is a schematic structural diagram of the camera mechanism 300 in fig. 2, fig. 4 is a schematic structural diagram of a portion of the camera mechanism 300 along v-v in fig. 3, and fig. 5 is a schematic structural diagram of the anti-shake module 310 in fig. 4.

The camera mechanism 300 can have an anti-shake function, and the power consumption in the use process is low, so that the shooting effect of the camera mechanism 300 can be improved, and the use time of the camera mechanism 300 can be prolonged. As shown in fig. 3 to 4, the image pickup mechanism 300 may include: an anti-shake module 310, a photosensitive module 320 and a frame 330. The anti-shake module 310 may be disposed opposite to the photosensitive module 320, and the photosensitive module 320 may be located on an optical path of the anti-shake module 310, which may be used for receiving light emitted from the anti-shake module 310 for imaging. The frame 330 can accommodate the anti-shake module 310 and the photosensitive module 320 to maintain the tightness of the camera mechanism 300 and reduce the influence of the external environment on the anti-shake module 310 and the photosensitive module 320. In this embodiment, the anti-shake module 310 can compensate for shake of the image capturing mechanism 300 during the capturing process, so as to implement the anti-shake function of the image capturing mechanism 300. Meanwhile, the anti-shake module 310 has low power consumption in the use process, which is beneficial to the users to use the camera mechanism 300 for a long time. Alternatively, in addition to the anti-shake module 310 and the photosensitive module 320, the camera mechanism 300 may be provided with other modules with different functions for improving the shooting effect of the camera mechanism 300, which is not limited in this embodiment.

As shown in fig. 4 to 5, the anti-shake module 310 may include: mount 311, first drive assembly 312, second drive assembly 313, and lens assembly 314. The mounting seat 311 may be connected to the first driving assembly 312 and the second driving assembly 313, respectively, and the mounting seat 311 may also rotate with the first direction Y as an axis direction under the driving of the first driving assembly 312. The lens assembly 314 may be connected to the second driving assembly 313, and may be driven by the second driving assembly 313 to rotate about the second direction X. So set up, the lens assembly 314 not only can rotate with the first direction Y as the axial direction under the drive of the mounting seat 311, but also can rotate with the second direction X as the axial direction under the drive of the second driving assembly 313, so that the lens assembly 314 can compensate the shake of the image capturing mechanism 300 in the shooting process, thereby realizing the anti-shake function of the image capturing mechanism 300. In this embodiment, the first driving component 312 and the second driving component 313 may be the same driving component, and both may realize high-precision and large-stroke motion control, and keep low power consumption, so that not only the anti-shake effect of the anti-shake module 310 may be improved, but also the user may use the image capturing mechanism 300 for a long time.

It is understood that the first direction Y and the second direction X may be two intersecting directions, so that the lens assembly 314 may perform multi-dimensional rotation to improve the anti-shake effect of the image capturing mechanism 300. Preferably, the first direction Y and the second direction X may be perpendicular.

Alternatively, the second driving component 313 may be omitted, that is, the anti-shake module 310 may be provided with only the first driving component 312, and the lens component 314 may be directly disposed on the mounting base 311 and may rotate only under the driving of the mounting base 311 in the axial direction Y. In this way, the first driving component 312 still drives the lens component 314 to rotate about the first direction Y as the axis direction, so as to implement the anti-shake function of the image capturing mechanism 300.

The mounting seat 311 may be configured to rotate the lens assembly 314 about the first direction Y. As shown in fig. 4 to 5, the mounting seat 311 may be disposed in the frame 330, and the mounting seat 311 may have a first bearing portion 3111 and a second bearing portion 3112 that are disposed vertically and in contact. The first bearing portion 3111 may have a first surface 3001 perpendicular to the first direction Y, the second bearing portion 3112 may have a second surface 3002 perpendicular to the second direction Y, and the first surface 3001 and the second surface 3002 may further meet. Meanwhile, the first bearing portion 3111 may be connected to the first driving assembly 312, and the first driving assembly 312 may be located at a side of the first bearing portion 3111 facing away from the first surface 3001. The second bearing portion 3112 may be connected to the second driving unit 313, and the second driving unit 313 may be located on a side of the second surface 3002.

Referring to fig. 6 to 9 in conjunction with fig. 4 to 5, fig. 6 is a partially enlarged schematic view of fig. 4 a, fig. 7 is another cross-sectional structure of the first driving assembly 312 in fig. 6, fig. 8 is a structure of the transmission part 31244 in fig. 7, and fig. 9 is a partially enlarged schematic view of fig. 4B.

The long-term research of the inventor shows that the precision and the stroke of the traditional electromagnetic motor are greatly limited by an ADC/DAC (analog-to-digital conversion/digital-to-analog conversion), and the high-precision and large-stroke motion control is difficult to realize simultaneously. Generally, the larger the stroke of the electromagnetic motor, the larger the corresponding driving current, and the higher the current accuracy, the higher the minimum driving accuracy. For example, assuming that the electromagnetic motor has a movement stroke of 1mm, corresponding to a maximum current of 1000mA, and a minimum accuracy of 1um, a 10-bit drive IC is required for control. When the motion stroke is correspondingly extended to 2mm and 3mm, the minimum accuracy is unchanged, the maximum current is required to be correspondingly extended to 2000mA and 3000mA, and 11bit and 12bit drive ICs are required. In this way, when it is necessary to simultaneously realize motion control with high precision and large stroke, the power consumption of the electromagnetic motor increases, and the cost and size of the driving IC thereof also increases, and on the premise that the power consumption is limited, it is definitely very difficult for the electromagnetic motor to simultaneously have motion control with high precision and large stroke.

In order to solve the foregoing technical problem, the first driving component 312 and the second driving component 313 in the embodiment of the present application may be of a piezoelectric driving structure, so that the first driving component 312 and the second driving component 313 can simultaneously implement motion control with high precision and large stroke and reduce their own power consumption by utilizing the characteristics of piezoelectric driving. Specifically, the first driving assembly 312 and the second driving assembly 313 may be resonant piezoelectric modules, and the principle thereof is as follows: the first driving component 312 and the second driving component 313 can be driven by a certain sine wave to perform elliptical motion, so as to drive the lens component 314 to perform corresponding motion. Because each elliptical motion displacement is extremely small and only is in nano-scale motion, submicron-scale control precision can be easily realized by adjusting the cycle number of the sine wave control signal. Meanwhile, as the motion stroke is only related to the cycle number of the sine wave control signal, when long-stroke motion is needed, the maximum current does not need to be increased, and the power consumption can be effectively reduced.

The specific structure of the first drive assembly 312 and the second drive assembly 313 is further described below. The first driving assembly 312 may be used to drive the mount 311 to rotate in a first direction Y-axis direction. As shown in fig. 4 to 6, the first driving assembly 312 may include: first stationary member 3121, first movable member 3122, first rotatable shaft 3123, first driving member 3124, and first adjustment member 3125. Wherein first stationary member 3121 may be opposite and spaced apart from first exercise member 3122. The first rotation shaft 3123 is disposed through the first fixed member 3121 and the first movable member 3122, and the first rotation shaft 3123 may be disposed parallel to the first direction Y. First driving member 3124 is positioned between first stationary member 3121 and first moving member 3122 and is in contact with first stationary member 3121 and first moving member 3122, respectively, and first driving member 3124 can generate a slight vibration upon energization to drive first moving member 3122 to rotate relative to first rotational axis 3123. First adjustment member 3125 can be disposed on first axis of rotation 3123 and can be displaced relative to first axis of rotation 3123 to adjust the abutment force between first exercise member 3122 and first drive member 3124.

Further, a side of first stationary member 3121 facing away from first movable member 3122 may be coupled to frame 330 to secure first drive assembly 312 within frame 330. A side of first movement member 3122 facing away from first stationary member 3121 may be coupled to a side of first carrier 3111 facing away from first surface 3001 such that first movement member 3122 may rotate lens assembly 314 in a first direction Y via mount 311. Wherein, the first fixing member 3121 and the frame 330, the first moving member 3122 and the first bearing portion 3111 can be fixedly connected by means such as adhesion, welding, and bolting.

First rotation axis 3123 may be disposed parallel to first direction Y and may be fixedly coupled at one end to first stationary member 3121 and relatively rotatable to first movable member 3122 at the other end. For example, a bearing 3003 may be provided between first exercise piece 3122 and first rotation shaft 3123 to enable relative rotation of first exercise piece 3122 and first rotation shaft 3123.

The first driving member 3124 can generate a slight vibration after being energized to drive the first moving member 3122 to rotate relative to the first rotating shaft 3123, so as to drive the first bearing portion 3111 to rotate in the first direction Y. As shown in fig. 6, first driver 3124 may include: vibration part 31241, friction part 31242, and elastic part 31243. Wherein vibratory portion 31241 can be located on a side of first stationary member 3121 facing first movable member 3122, and vibratory portion 31241 can generate a slight vibration upon energization. The friction portion 31242 may be located on a side of the vibration portion 31241 toward the first exercise piece 3122. The elastic portion 31243 may be located at a side of the vibration portion 31241 facing the first fixed member 3121, and the elastic portion 31243 may respectively abut against the first fixed member 3121 and the vibration portion 31241 to provide elastic force to indirectly act on the friction portion 31242, so that the friction portion 31242 may respectively abut against the vibration portion 31241 and the first moving member 3122 under the elastic force. With this arrangement, when the vibration portion 31241 is energized to generate vibration, the friction portion 31242 in close contact with the vibration portion 31241 can be driven by the vibration portion 31241 to rotate the first moving member 3122 relative to the first rotating shaft 3123.

Specifically, the vibration part 31241 may be provided in a ring shape and surround the first rotation shaft 3123. Meanwhile, the vibration part 31241 may be made of a piezoelectric material such as piezoelectric ceramics or piezoelectric single crystals, which may be a single-layer ceramic or a multi-layer ceramic. For example, the vibration part 31241 may be made of a material such as lead zirconate titanate-based piezoelectric ceramic, potassium sodium niobate-based piezoelectric ceramic, barium titanate-based piezoelectric ceramic, lead magnesium niobate-lead indium niobate-based piezoelectric single crystal, or textured ceramic. Meanwhile, an electrode and a contact for electrical connection may be further provided on an outer surface of the vibration part 31241 so that an external circuit applies a control signal to the vibration part 31241. In this way, when the vibration part 31241 receives the high-frequency ac signal greater than 20kHz, the vibration part 31241 can simultaneously excite multiple modes, and the multiple modes are coupled to generate micro-amplitude vibration and driving force, and the elastic part 31243 is used to tightly match the friction part 31242 with the first moving member 3122, so as to convert the micro-amplitude vibration of the vibration part 31241 into the rotation of the first moving member 3122, thereby realizing the rotation of the first moving member 3122 in the axial direction of the first direction Y. The specific working principle of the vibration part 31241 can refer to the inverse piezoelectric effect in the prior art, and the embodiment is not described herein.

The friction portion 31242 may be disposed on a side of the vibration portion 31241 facing the first movement member 3122, and the shape of the friction portion 31242 may be matched to the shape of the vibration portion 31241, i.e., the friction portion 31242 may also be annular and disposed around the first rotation axis 3123. Meanwhile, the friction portion 31242 may be made of a wear-resistant material such as alumina, silica, zirconia, carbon fiber, or polyester fiber, etc., so as to improve the service life of the friction portion 31242 and maintain the coupling accuracy of the first driving member 3124 and the first movement member 3122. The elastic portion 31243 may be disposed between the first fixed member 3121 and the vibration portion 31241, and may provide an elastic force acting on the vibration portion 31241 so that the friction portion 31242 can abut against the first moving member 3122, improving the fit tightness of the friction portion 31242 and the first moving member 3122. The elastic portion 31243 may be a spring or a spring sheet, or may be an elastic pad made of an elastic material such as rubber, silica gel, or soft plastic.

Optionally, to amplify the motion trajectory of the oscillating portion 31241, to increase the driving speed of the oscillating portion 31241, the first driving member 3124 may also be provided with a transmission portion 31244. As shown in fig. 7 to 8, the transmission portion 31244 may be located between the vibration portion 31241 and the friction portion 31242, and the transmission portion 31244 may be respectively abutted against the vibration portion 31241 and the friction portion 31242, and its shape may also be adapted to the vibration portion 31241, that is, may be arranged in a ring shape. The transmission part 31244 may be provided with a plurality of protrusions 312441 disposed at intervals and abutting against the friction part 31242 on a side facing the friction part 31242, and the plurality of protrusions 312441 may be annularly arranged and disposed around the first rotation shaft 3123. In this manner, when the driving force of the vibration part 31241 is transmitted to the transmission part 31244, the transmission part 31244 can rub against the friction part 31242 by using the plurality of protrusions 312441, so that the friction transmission loss between the transmission part 31244 and the friction part 31242 is reduced by reducing the contact area, thereby amplifying the movement track of the vibration part 31241 and increasing the driving speed of the vibration part 31241.

As shown in fig. 6, first adjustment member 3125 can be disposed on first pivot axis 3123 and first adjustment member 3125 can be located on a side of first exercise member 3122 that faces away from first stationary member 3121. Wherein first adjustment member 3125 is displaceable relative to first rotational axis 3123 in a direction toward or away from first movement member 3122 to adjust the abutment force between first movement member 3122 and frictional portion 31242. For example, the first shaft 3123 may be provided with threads, the first adjustment member 3125 may be sleeved on the first shaft 3123, and the first adjustment member 3125 may also be provided with threads corresponding to the first shaft 3123 such that the first adjustment member 3125 may be displaced on the first shaft 3123 by the threads. Thus, when it is desired to increase the abutment force between first exercise member 3122 and frictional portion 31242, first adjustment member 3125 can be displaced in a direction toward first exercise member 3122 by rotating first adjustment member 3125 such that first adjustment member 3125 abuts against first exercise member 3122. When it is desired to reduce the abutment force between first exercise member 3122 and frictional portion 31242, first adjustment member 3125 can be displaced away from first exercise member 3122 by rotating first adjustment member 3125 such that first adjustment member 3125 and first exercise member 3122 are released. Alternatively, first adjustment member 3125 can be omitted and the abutment force between first exercise member 3122 and frictional portion 31242 can remain fixed.

The second driving assembly 313 may have the same structure as the first driving assembly 312, and may be used to drive the lens assembly 314 to rotate about the second direction X. As shown in fig. 9, the second driving assembly 313 may include: a second fixed member 3131, a second movable member 3132, a second rotation shaft 3133, a second driving member 3134, and a second adjusting member 3135. Wherein the second fixed member 3131 may be opposite to and spaced apart from the second movable member 3132. The second rotation shaft 3133 penetrates the second fixed member 3131 and the second moving member 3132, and the second rotation shaft 3133 may be disposed in parallel with the second direction X. The second driving member 3134 is located between the second fixed member 3131 and the second moving member 3132, and abuts against the second fixed member 3131 and the second moving member 3132, respectively, and the second driving member 3134 may generate a slight vibration after being energized to drive the second moving member 3132 to rotate with respect to the second rotation shaft 3133. The second regulating member 3135 may be provided on the second rotation shaft 3133 and may be displaced with respect to the second rotation shaft 3133 to regulate an abutment force between the second moving member 3132 and the second driving member 3134.

Further, a second fixing member 3131 may be provided on the second surface 3002 of the second bearing 3112 to fix the second driving assembly 313 to the mount 311. A side of the second moving member 3132 facing away from the second fixing member 3131 may be connected to the lens assembly 314, such that the second moving member 3132 drives the lens assembly 314 to rotate in the second direction X as an axial direction. Wherein the second fixing member 3131 and the second bearing portion 3112, and the second moving member 3132 and the lens assembly 314 may be fixedly coupled by means such as adhesion, welding, and bolting.

The second rotation shaft 3133 may be disposed in parallel with the second direction X, one end of which may be fixedly coupled with the second fixing member 3131, and the other end of which may be relatively rotated with the second moving member 3132. For example, a bearing 3003 may be provided between the second mover 3132 and the second rotation shaft 3133 to enable relative rotation of the second mover 3132 and the second rotation shaft 3133. The second driving member 3134 may generate a slight vibration after being energized, so as to drive the second moving member 3132 to rotate relative to the second rotating shaft 3133, and further drive the lens assembly 314 to rotate about the second direction X. The structure and operation principle of second driving member 3134 may be the same as those of first driving member 3124, and this embodiment will not be described here.

As shown in fig. 9, the second regulating member 3135 may be provided on the second rotating shaft 3133, and the second regulating member 3135 may be located at a side of the second moving member 3132 facing away from the second fixing member 3131. Wherein the second regulating member 3135 is displaceable in a direction toward or away from the second moving member 3132 with respect to the second rotation shaft 3133 to regulate the abutment force between the second moving member 3132 and the friction portion 31242. For example, the second rotation shaft 3133 may be provided with a screw thread, the second regulating member 3135 may be sleeved on the second rotation shaft 3133, and the second regulating member 3135 may also be provided with a screw thread corresponding to the second rotation shaft 3133, so that the second regulating member 3135 may be displaced on the second rotation shaft 3133 by the screw thread. In this way, when it is necessary to raise the abutment force between the second movable member 3132 and the friction portion 31242, the second movable member 3135 can be displaced in a direction approaching the second movable member 3132 by rotating the second movable member 3135 so that the second movable member 3135 abuts against the second movable member 3132. When it is necessary to reduce the abutment force between the second movable member 3132 and the friction portion 31242, the second movable member 3132 may be displaced in a direction away from the second movable member 3132 by rotating the second movable member 3135 so as to release the second movable member 3135 and the second movable member 3132. Alternatively, the second regulating member 3135 may be omitted, and the abutment force between the second moving member 3132 and the friction portion 31242 may remain fixed.

It will be appreciated that the first drive assembly 312 and the second drive assembly 313 may be the same drive assembly, and that the foregoing description of "first" and "second" is merely for distinguishing between the two drive assemblies so as to describe the connection relationship of the two drive assemblies to the mounting base 311, and the drive directions of the two drive assemblies. In some embodiments, the descriptions of "first" and "second" may also be omitted. That is, the "first driving assembly" and the "second driving assembly" may also be referred to as "driving assemblies", the "first fixing member" and the "second fixing member" may also be referred to as "fixing members", the "first moving member" and the "second moving member" may also be referred to as "moving members", the "first rotation shaft" and the "second rotation shaft" may also be referred to as "rotation shafts", the "first driving member" and the "second driving member" may also be referred to as "driving members", and the "first adjusting member" and the "second adjusting member" may also be referred to as "adjusting members".

The lens assembly 314 may be used for transmitting light, and may be driven by the first driving assembly 312 and the second driving assembly 313 to rotate in the first direction Y and/or the second direction X. As shown in fig. 5, the lens assembly 314 may include: a carrier 3141 and a lens 3142. The carrier 3141 may be connected to the second moving member 3132, and may rotate with the second direction X as an axis direction under the driving of the second moving member 3132. For example, the carrier 3141 and the second mover 3132 may be fixedly connected by bonding, welding, bolting, or the like. The lens 3142 may be disposed on the carrier 3141, and the lens 3142 may be a prism, which may be used to change a transmission path of light to achieve the purpose of extending the light path, and the image capturing mechanism 300 may be designed correspondingly, so as to be beneficial to implementing multiple optical zooming of the image capturing mechanism 300.

As shown in fig. 5, the lens 3142 has an incident surface 31421 perpendicular to the first direction Y, an exit surface 31422 perpendicular to the second direction X and contacting the incident surface 31421, and a reflective surface 31423 contacting the incident surface 31421 and the exit surface 31422, respectively. The light can be incident from the light incident surface 31421, reflected by the reflecting surface 31423, and then emitted from the light emergent surface 31422, so as to change the transmission path of the light and prolong the light path of the light. Alternatively, the lens 3142 may be a conventional concave-convex lens for converging or diverging light rays. For example, the lens 3142 may have a single or a plurality of optical lenses made of glass or transparent plastic, such as a free-form surface lens, a spherical lens, an aspherical lens, and the like, and the plurality of optical lenses may correct filtered light and eliminate aberration with each other.

As shown in fig. 4, the photosensitive module 320 may be disposed opposite to the light emitting surface 31422 of the lens module 3142, and may be used for receiving the light emitted from the light emitting surface 31422 of the lens 3142 for imaging. For example, the photosensitive module 320 may include: light sensor 321, circuit board 322, optical filter 323, and mount 324. The light sensor 321 may be disposed on the circuit board 322 and disposed opposite to the light emitting surface 31422. The mounting frame 324 may cover the light sensor 321, the optical filter 323 may be disposed on the mounting frame 324 and opposite to the light sensor 321, and it may filter the stray light emitted from the light emitting surface 31422 to improve the imaging effect of the imaging mechanism 300. Specifically, the photosensor 321 may be a sensor such as a CCD (Charge Coupled Device ) or a sensor such as a CMOS (Complementary Metal Oxide Semiconductor ). For image sensors such as CMOS, the image sensor may be based on RGGB or RYYB.

The frame 330 may be used to house the anti-shake module 310 and the photosensitive module 320, so as to prevent the external environment from affecting the anti-shake module 310 and the photosensitive module 320. The region of the frame 330 opposite to the light incident surface 31421 may be notched or partially transparent for light transmission, so that light can be incident into the lens 3142 for transmission. Alternatively, the image capturing mechanism 300 may include only the anti-shake module 310 and the photosensitive module 320, and the frame 330 may be omitted, and the anti-shake module 310 and the photosensitive module 320 may be directly mounted on the middle frame 210 or the rear case 220, or structures similar to the frame 330 may be provided on the middle frame 210 and the rear case 220 for accommodating the anti-shake module 310 and the photosensitive module 320.

Referring to fig. 10 to 12, fig. 10 is a schematic cross-sectional view of another part of the camera mechanism 300 along v-v in fig. 3, fig. 11 is a schematic cross-sectional view of the focusing module 340 in fig. 10, and fig. 12 is a schematic cross-sectional view of another part of the camera mechanism 300 along vi-vi in fig. 3.

In order to further enhance the photographing effect of the photographing mechanism 300, the photographing mechanism 300 may be further provided with a focusing module 340. As shown in fig. 10 to 11, the focusing module 340 may be located between the anti-shake module 310 and the photosensitive module 320, and the focusing module 340 may include: a piezoelectric motor 341, a lens assembly 342, and a frame 343. The piezoelectric motor 341 and the lens assembly 342 may be disposed in the frame 343, and the piezoelectric motor 341 may be abutted against the lens assembly 342 and may drive the lens assembly 342 to move toward or away from the lens 3142, so as to implement the focusing function of the image capturing mechanism 300.

As shown in fig. 12, the piezoelectric motor 341 may include: a piezoelectric body 3411, a friction head 3412, and an elastic member 3413. Wherein, the piezoelectric body 3411 may be located between the lens assembly 342 and the frame 343, the friction head 3412 may be located at a side of the piezoelectric body 3411 facing the lens assembly 342, and the elastic member 3413 may be located between the piezoelectric body 3411 and the frame 343 and respectively abut against the piezoelectric body 3411 and the frame 343 to provide elastic force to indirectly act on the friction head 3412, so that the friction head 3412 respectively abuts against the piezoelectric body 3411 and the lens assembly 342. Meanwhile, the piezoelectric body 3411 can generate micro vibration after being electrified so as to drive the friction head 3412 to drive the lens component 342 to displace in a direction approaching or separating from the lens 3142, so that the focusing function of the camera mechanism 300 is realized. In this embodiment, the structure and operation principle of the piezoelectric motor 341 are the same as or similar to those of the first driving member 3124, and the description of this embodiment is omitted here.

Alternatively, the friction head 3412 may be disposed on a side of the piezoelectric body 3411 facing the frame 343, and the elastic member 3413 may be disposed on a side of the piezoelectric body 3411 facing the lens assembly 342, and the friction head 3412 may be abutted against the frame 343 under the elastic force of the elastic member 3413. So configured, when the piezoelectric body 3411 is energized, vibration generated by the piezoelectric body 3411 can act on the frame 343 through the friction head 3412, and since the frame 343 is fixed, the lens assembly 342 is correspondingly displaced under the driving of the piezoelectric body 3411.

The lens assembly 342 may be used to diverge or converge light and may be displaced by the drive of the piezoelectric motor 341. As shown in fig. 11 and 12, the lens assembly 342 can include: a carrier 3421 and a lens 3422. The carrier 3421 may abut against the friction head 3412, and may be displaced in a direction approaching or separating from the lens 3142 by the friction head 3412. The lens 3422 may be disposed on the carrier 3421 and opposite to the lens 3142 and the light sensor 321 (i.e. the photosensitive module 340), respectively, and may be used for conducting the light emitted from the lens 3142 to the light sensor 321. The lens 3422 may include one or more optical lenses made of glass or transparent plastic, such as free-form surface lenses, spherical lenses, aspherical lenses, etc., and the optical lenses may correct filtered light and eliminate aberration with each other.

The frame 343 may be used for accommodating the piezoelectric motor 341 and the lens component 342, and in order to enable the light emitted from the lens 3142 to irradiate onto the lens 3422, openings 3431 may be formed on two opposite sides of the frame 343 on the displacement path of the lens 3422, so that the light irradiates onto the lens 3422 through the openings 3431. Alternatively, the frame 343 may be omitted and the piezoelectric motor 341 and the lens assembly 342 may be disposed directly within the housing 330.

Further, to guide the displacement of the lens assembly 342, the focusing module 340 may be further provided with a slider 344. As shown in fig. 12, the slider 344 may be located between the carrier 3421 and the frame 343, and the slider 344 may be located on a side of the carrier 3421 facing away from the friction head 3412. Meanwhile, the carrier 3421 and the frame 343 may be further provided with a clamping slider 344, and the three components cooperate to form a guiding structure for guiding the displacement of the carrier 3421. For example, the frame 343 and the carrier 3421 can be provided with corresponding sliding grooves, and the two can be provided with the sliding grooves together holding the sliding member 344, so that the three can cooperate to form a guiding structure. In this embodiment, the slider 344 may be a ball, which is advantageous in reducing friction between the carrier 3421 and the frame 343. Meanwhile, the slider 344 may also be a roller when facing the long distance displacement, which is advantageous for improving the movement stability of the carrier 3421. In addition, in order to reduce the jamming during displacement of the carrier 3421, the sliding groove may preferably be designed as a U-groove or V-groove.

In the driving assembly 312 provided by the embodiment of the application, the driving member 3124 respectively abutting against the fixed member 3121 and the moving member 3122 is arranged between the fixed member 3121 and the moving member 3122 which are oppositely and at intervals, and the rotating shaft 3123 penetrating through the fixed member 3121 and the moving member 3122 is arranged, and the driving member 3124 can vibrate after being electrified so as to drive the moving member 3122 to rotate relative to the rotating shaft 3123, so that the driving assembly 312 can utilize the rotation of the moving member 3122 to drive the lens to rotate. By the arrangement, shake in the shooting process can be compensated by driving the lens to rotate through the driving component 312, high-precision and large-stroke motion control can be realized by utilizing the characteristic of piezoelectric driving, and the power consumption of the driving component 312 is reduced.

The foregoing description is only a partial embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.

Claims

1. A drive assembly, the drive assembly comprising: the device comprises a fixed piece, a moving piece, a rotating shaft and a driving piece;

the fixed piece is opposite to the moving piece and is arranged at intervals; the rotating shaft penetrates through the fixed piece and the moving piece; the driving piece is positioned between the fixed piece and the moving piece, is respectively abutted to the fixed piece and the moving piece, and is configured to vibrate after being electrified so as to drive the moving piece to rotate relative to the rotating shaft.

2. The drive assembly of claim 1, further comprising: an adjusting member;

the adjusting piece is sleeved on the rotating shaft and is positioned on one side of the moving piece, which is away from the fixed piece, and the adjusting piece can also displace relative to the rotating shaft in a direction towards or away from the moving piece so as to adjust the abutting force between the moving piece and the driving piece.

3. The drive assembly of claim 2, wherein the drive member comprises: a vibrating portion, an elastic portion, and a friction portion;

The vibration part is positioned at one side of the fixing piece facing the moving piece, the elastic part is positioned at one side of the vibration part facing the fixing piece, and the elastic part is respectively abutted with the fixing piece and the vibration part; the friction part is positioned at one side of the vibration part, which is away from the elastic part, and is respectively abutted against the vibration part and the moving part.

4. A drive assembly as recited in claim 3, wherein the drive further comprises: a transmission part;

The transmission part is positioned between the vibration part and the friction part and is respectively abutted against the vibration part and the friction part, and the transmission part is configured to amplify the movement track of the vibration part so as to improve the driving speed of the vibration part.

5. An anti-shake module, characterized in that the anti-shake module includes: mount pad, lens subassembly and first drive assembly, just first drive assembly includes: the first fixing piece, the first moving piece, the first rotating shaft and the first driving piece; wherein,

The first fixing piece is opposite to the first moving piece and is arranged at intervals; the first rotating shaft penetrates through the first fixing piece and the first moving piece; the first driving piece is positioned between the first fixing piece and the first moving piece, is respectively abutted with the first fixing piece and the first moving piece, and is configured to vibrate after being electrified so as to drive the first moving piece to rotate relative to the first rotating shaft; the mounting seat is connected with the first moving part and can rotate along with the first moving part by taking the first direction as the axial direction; the lens component is arranged on the mounting seat.

6. The anti-shake module of claim 5, further comprising: a second drive assembly, and the second drive assembly comprises: the second fixing piece, the second moving piece, the second rotating shaft and the second driving piece; wherein,

The second fixing piece is connected with the mounting seat, and the second moving piece is opposite to the second fixing piece and is arranged at intervals; the second rotating shaft penetrates through the second fixing piece and the second moving piece; the second driving piece is positioned between the second fixing piece and the second moving piece, is respectively abutted with the second fixing piece and the second moving piece, and is configured to vibrate after being electrified so as to drive the second moving piece to rotate relative to the second rotating shaft; the lens component is connected with the second moving piece and can rotate along with the second moving piece by taking the second direction as the axial direction.

7. The anti-shake module of claim 6, wherein the lens assembly comprises: a carrier and a lens on the carrier;

the carrier is connected with the second moving part and can rotate along with the second moving part by taking the second direction as the axial direction.

8. The anti-shake module of claim 6, wherein the mount has a first bearing portion and a second bearing portion that are connected and vertically disposed; the first moving part is connected with the first bearing part, and the second fixing part is connected with the second bearing part.

9. The anti-shake module of claim 7, wherein the first direction and the second direction are perpendicular.

10. The anti-shake module according to claim 8, wherein the lens has a light incident surface, a light emergent surface that is perpendicular to the light incident surface, and a reflective surface that is perpendicular to the light incident surface and the light emergent surface, respectively; the light incident surface is perpendicular to the first direction, and the light emergent surface is perpendicular to the second direction.

11. An image pickup mechanism, comprising: a photosensitive module and an anti-shake module according to any of claims 5-10, wherein the photosensitive module is located on the light exit path of the lens assembly.

12. An electronic device, the electronic device comprising: a display screen, a housing, and the imaging mechanism of claim 11;

the display screen is connected with the shell, an accommodating space is formed by surrounding the display screen and the shell together, and the camera shooting mechanism is positioned in the accommodating space.