CN113660404B - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN113660404B CN113660404B CN202110974447.9A CN202110974447A CN113660404B CN 113660404 B CN113660404 B CN 113660404B CN 202110974447 A CN202110974447 A CN 202110974447A CN 113660404 B CN113660404 B CN 113660404B
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- 238000006073 displacement reaction Methods 0.000 description 10
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- 230000000712 assembly Effects 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
Abstract
The application provides a camera module and electronic equipment, and belongs to the field of electronic equipment. The camera module comprises a mounting seat, a lens assembly, a photosensitive chip and a driving assembly, wherein the lens assembly is arranged on the mounting seat, the photosensitive chip is arranged towards the lens assembly, and the driving assembly is connected with the lens assembly and used for driving the lens assembly to be close to or far away from the photosensitive chip; the driving assembly comprises a piezoelectric element and a friction guide piece, the friction guide piece is fixed on the mounting seat, the piezoelectric element is connected with the lens assembly, the piezoelectric element is abutted to the friction guide piece, and the piezoelectric element can move along the friction guide piece to drive the lens assembly to move.
Description
Technical Field
The present application relates to the field of electronic devices, and in particular, to a camera module and an electronic device.
Background
At present, the requirements of users on photographing performance of cameras and mobile phones are higher and higher, and in order to meet photographing requirements of different scenes and different focal lengths, lenses can be designed into telescopic forms, and the heights of the lenses are automatically adjusted according to the focal length requirements of different scenes.
Generally speaking, the traditional telescopic lens uses a motor and a series of transmission mechanisms to drive the lens to perform telescopic motion to realize the zooming function, for example, a rotating shaft of the motor rotates to drive a screw rod to rotate, so that the lens is driven to move along the screw rod, however, the transmission mechanisms such as the motor and the screw rod occupy more space, and the miniaturization design of the camera module is not facilitated. It can be seen that the occupation space of the existing camera module is large.
Disclosure of Invention
The embodiment of the application provides a camera module and electronic equipment, which are used for solving the problem that the camera module occupies a larger space.
In a first aspect, an embodiment of the present application provides a camera module, including a mounting seat, a lens assembly, a photosensitive chip and a driving assembly, where the lens assembly is disposed on the mounting seat, the photosensitive chip is disposed towards the lens assembly, and the driving assembly is connected with the lens assembly and is used for driving the lens assembly to approach or depart from the photosensitive chip;
the driving assembly comprises a piezoelectric element and a friction guide piece, the friction guide piece is fixed on the mounting seat, the piezoelectric element is connected with the lens assembly, the piezoelectric element is abutted to the friction guide piece, and the piezoelectric element can move along the friction guide piece to drive the lens assembly to move.
In a second aspect, an embodiment of the present application further provides an electronic device, including a camera module as described in the first aspect.
In the embodiment of the application, the driving component in the camera module comprises the piezoelectric element and the friction guide piece, the piezoelectric element is abutted with the friction guide piece while being fixed with the lens module, the piezoelectric element vibrates when voltage is applied, the friction force between the piezoelectric element and the friction guide piece enables the piezoelectric element to deform, and the restoring force of the deformation enables the piezoelectric element to displace along the friction guide piece, so that the lens module is driven to displace to be close to or far away from the photosensitive chip, namely, the telescopic focusing function of the lens module is realized, and the volume of the piezoelectric element is usually smaller, so that the whole occupied space of the camera module can be reduced.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic diagram of a part of a camera module according to an embodiment of the present application;
FIG. 2 is a second schematic diagram of a portion of a camera module according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a camera module according to an embodiment of the present application;
fig. 4 is a schematic view of a part of a structure of a lens assembly according to an embodiment of the present application;
FIG. 5 is a schematic structural view of an elastic member according to an embodiment of the present application;
fig. 6 is a schematic diagram of a combined structure of a piezoelectric element and a flexible circuit board according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The features of the application "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 6, an embodiment of the present application provides a camera module, including a mounting base 10, a lens assembly 20, a photosensitive chip and a driving assembly 30, wherein the lens assembly 20 is disposed on the mounting base 10, the photosensitive chip is disposed towards the lens assembly 20, and the driving assembly 30 is connected with the lens assembly 20 and is used for driving the lens assembly 20 to approach or depart from the photosensitive chip;
the driving assembly 30 includes a piezoelectric element 31 and a friction guide 32, the friction guide 32 is fixed on the mounting base 10, the piezoelectric element 31 is connected with the lens assembly 20, the piezoelectric element 31 abuts against the friction guide 32, and the piezoelectric element 31 can move along the friction guide 32 to drive the lens assembly 20 to move.
In the embodiment of the present application, the camera module may include one or more lens assemblies 20, and the driving assembly 30 may be one or more. That is, in the case where the plurality of lens assemblies 20 are provided, the driving unit 30 may be connected to any one or more of the lens assemblies 20 to thereby drive the lens assemblies 20 connected thereto to displace, which is not limited herein.
The camera module includes a photosensitive chip, and the photosensitive chip is configured to receive the transmitted light of the lens assembly 20 and convert the transmitted light into an electrical signal, and the specific position of the photosensitive chip can be set according to actual needs. In some embodiments, the lens assembly 20 may be disposed on one side of the mount 10, and the photosensitive chip is disposed on the other side of the mount 10, and transmits light through a through hole in the middle of the mount 10. It will be appreciated that, referring to fig. 1 to 2, the lens assembly 20 may be driven by the driving assembly 30 to move in a vertical direction to approach or separate from the mount 10, so that the lens assembly 20 may simultaneously approach or separate from the photosensitive chip, thereby achieving focusing through displacement of the lens assembly 20.
In some embodiments, the lens assembly 20 and the photosensitive chip may also be disposed on the same side of the mount 10. For example, the photosensitive chip may be disposed between the lens assembly 20 and the mount 10, and the lens assembly 20, the photosensitive chip, and the mount 10 may be sequentially disposed along a vertical direction, and the driving assembly 30 drives the lens assembly 20 to move along the vertical direction so as to approach or separate from the photosensitive chip. For another example, the photosensitive chip and the lens assembly 20 may be disposed on the same side of the mounting base 10 along a horizontal direction, and the driving assembly 30 drives the lens assembly 20 to move along the horizontal direction so as to approach or separate from the photosensitive chip. In other words, it is only necessary to ensure that the above-described photosensitive chip is disposed toward the lens assembly 20.
Specifically, the driving assembly 30 may include a piezoelectric element 31 and a friction guide 32. It is known that the piezoelectric element 31 is an element that converts voltage into force, that is, the piezoelectric element 31 can vibrate when voltage is applied, and the outer surface of the friction guide 32 has a certain friction coefficient, so that when the piezoelectric element 31 is in contact with the friction guide 32, friction force is generated between the piezoelectric element 31 and the friction guide 32 to overcome the gravity of the piezoelectric element 31 itself, thereby ensuring that displacement does not occur when the piezoelectric element 31 is not energized. The abutment is understood to mean that the piezoelectric element 31 and the friction guide 32 have an interaction force in a direction perpendicular to the contact surface, and thus the piezoelectric element 31 and the friction guide 32 are pressed against each other to generate a friction force.
The friction guide 32 may be fixed to the mount to provide friction to the piezoelectric element 31. Specifically, the friction guide 32 may be fixedly disposed on the mounting base 10 by means of a fastening, a plugging, or an adhesive, or the like, and of course, a bracket may be disposed on the mounting base 10 so that the friction guide 32 and the mounting base 10 remain relatively stationary. After the piezoelectric element 31 is energized, the piezoelectric element 31 itself vibrates, and at the same time, the friction force between the piezoelectric element 31 and the friction guide 32 deforms the piezoelectric element 31, and the deformation restoring force of the piezoelectric element 31 displaces the piezoelectric element 31, so as to drive the lens assembly 20 to displace.
For example, if the piezoelectric element 31 is provided in a rectangular parallelepiped shape as shown in fig. 1 or 2, when energized, the middle portion of the long side of the piezoelectric element 31 may be bent upward due to the vibration of the piezoelectric element 31 itself and the friction force with the friction guide 32, so that the piezoelectric element 31 is temporarily "U" shaped, while the both side portions of the long side of the piezoelectric element 31 are displaced upward due to the elastic restoring force, so that the piezoelectric element 31 is displaced upward along the friction guide 32 as a whole. Of course, the displacement direction and the displacement speed of the piezoelectric element 31 may be specifically set according to the direction and the magnitude of the applied voltage, so as to ensure that the displacement of the piezoelectric element 31 may drive the lens assembly 20 to approach or separate from the mounting base 10, which is not illustrated herein.
The piezoelectric element 31 may be made of a piezoelectric material, specifically, may be a ceramic piezoelectric element 31 or a quartz piezoelectric element 31, and the piezoelectric element 31 may be provided in a rectangular parallelepiped, a cylindrical shape, or the like, and may be provided according to actual needs. In the same manner, the friction conductive member may have a friction coefficient on a surface thereof, and may be made of plastic, metal, or carbon material, etc., and may be provided in a plate shape or a column shape, and may be provided according to a displacement range required for the lens assembly 20, which is not illustrated herein.
In the embodiment of the application, since the driving component 30 in the camera module comprises the piezoelectric element 31 and the friction guide piece 32, the piezoelectric element 31 is abutted against the friction guide piece 32 while being fixed with the lens component 20, the piezoelectric element 31 vibrates when voltage is applied, the piezoelectric element 31 deforms itself due to the friction force between the piezoelectric element 31 and the friction guide piece 32, and the piezoelectric element 31 displaces along the friction guide piece 32 due to the restoring force of deformation, so that the lens component 20 is driven to displace, namely the telescopic function of the lens component 20 is realized, and the whole occupied space of the camera module can be reduced due to the fact that the volume of the piezoelectric element 31 is usually smaller.
Optionally, a mounting bracket 21 is disposed on one side of the lens assembly 20, the driving assembly 30 further includes an elastic member 33, the elastic member 33 is fixedly connected with the mounting bracket 21, and the elastic member 33 is fixedly connected with the piezoelectric element 31.
In the embodiment of the present application, in order to facilitate the connection between the lens assembly 20 and the piezoelectric element 31, one side of the lens assembly 20 may be provided with a mounting bracket 21, and the camera module may further include an elastic member 33, where the elastic member 33 is fixedly connected to the mounting bracket 21, and the elastic member 33 is simultaneously fixedly connected to the piezoelectric element 31, so that the piezoelectric element 31 and the lens assembly 20 are relatively stationary under the condition that the elastic member 33 is not deformed.
Specifically, in some embodiments, referring to fig. 3, the piezoelectric element 31 may be located between the elastic member 33 and the mounting bracket 21, and the elastic member 33 and the mounting bracket 21 may cooperatively clamp the piezoelectric element 31. In some embodiments, the mounting bracket 21 may include a housing shell, an elastic member 33 is disposed between an inner wall of the housing shell and the piezoelectric element 31, the elastic member 33 is fixedly connected with the inner wall of the housing shell and is fixedly connected with the piezoelectric element 31, and the piezoelectric element 31 is simultaneously abutted against the inner wall of the housing shell of the mounting bracket 21, so that the piezoelectric element 31 and the lens assembly 20 are relatively stationary under the condition that the elastic member 33 is not deformed.
As can be seen from the above description, the piezoelectric element 31 vibrates when energized, and can move along the friction guide 32 in combination with the action of friction force, and since the piezoelectric element 31 is connected to the mounting bracket 21 through the elastic member 33, the displacement of the piezoelectric element 31 can drive the lens assembly 20 provided with the mounting bracket 21 to displace together, that is, the transmission of the lens assembly 20 is realized.
In addition, in the embodiment of the present application, since the elastic member 33 has a certain elastic coefficient, when the piezoelectric element 31 vibrates, the elastic member 33 can play a certain role of buffering through elastic deformation, thereby prolonging the service life of the driving assembly 30.
It should be understood that the elastic member 33 may be a spring, a spring or other elastic structures, and may be specifically configured according to actual needs. Accordingly, the elastic member 33 may be made of an elastic material, and since the elastic member 33 needs to be connected to the piezoelectric element 31 and the mounting bracket 21 and has a certain strength, the elastic member 33 may preferably be made of spring steel.
Further, the friction guide 32 is provided in a column shape and is fixed to the mounting base 10;
the mounting bracket 21 is provided with a first limiting hole 211, and the friction guide 32 passes through the first limiting hole 211 so that the mounting bracket 21 can move in the axial direction of the friction guide 32.
In an embodiment of the present application, in order to reduce space occupation, the friction guide 32 may be configured as a column and fixed to the mounting base 10. It will be appreciated that the friction guide 32 may also act as a guide while cooperating with the piezoelectric element 31 to move the piezoelectric element 31. The mounting bracket 21 may be provided with a first limiting hole 211 adapted to the friction guide 32, and the friction guide 32 may pass through the first limiting hole 211, so that the movement direction of the mounting bracket 21 may be limited to the axial direction of the friction guide 32, so as to improve the displacement accuracy of the lens assembly 20 provided with the mounting bracket 21.
It should be understood that, when the friction guide 32 is disposed in a columnar shape, the axial direction is a height direction of the friction guide 32, and when the friction guide 32 is disposed in a plate shape or another shape, an axis indicated by the axial direction may be a central axis of the friction guide 32 in a direction of a line connecting the piezoelectric element 31 and the photosensitive chip.
In a specific embodiment, referring to fig. 1 or 2, the friction guiding element 32 may be configured as a cylinder, and the first limiting hole 211 is correspondingly configured as a circular hole, so that the mounting bracket 21 may only move along the axial direction of the friction guiding element 32 after the friction guiding element 32 passes through the first limiting hole 211. It should be appreciated that the friction guide 32 may be disposed perpendicular to the mount 10 to ensure displacement of the lens assembly 20 in a direction perpendicular to the mount 10.
Further, the mounting bracket 21 includes a first boss 212 and a second boss 213, and the first boss 212 is disposed opposite to the second boss 213;
the number of the first limiting holes 211 is two, and the first limiting holes are respectively arranged on the first boss 212 and the second boss 213; the piezoelectric element 31 is located between the first boss 212 and the second boss 213, and the piezoelectric element 31 abuts against the friction guide 32 through the elastic member 33.
In an embodiment of the present application, referring to fig. 4, the number of the first limiting holes 211 may be two, and the first boss 212 and the second boss 213 are respectively disposed on the mounting bracket 21. In order to enable the friction guide 32 to pass through the two first limiting holes 211 at the same time, the first boss 212 and the second boss 213 are oppositely arranged, and the vertical projections of the two first limiting holes 211 on the mounting base 10 coincide, so that the lens assembly 20 can be further prevented from shaking when moving along the friction guide 32 by arranging the two limiting holes, and the displacement stability of the lens assembly 20 is improved.
Referring to fig. 1 to 4 together, the piezoelectric element 31 may be disposed between the first boss 212 and the second boss 213, and the friction guide 32 may be partially disposed between the first boss 212 and the second boss 213 because the friction guide 32 is required to pass through the two limiting holes. The piezoelectric element 31 and the friction guide 32 may be abutted at a position between the first boss 212 and the second boss 213. Specifically, since the elastic member 33 is simultaneously connected to the mounting bracket 21 and the piezoelectric element 31, the elastic member 33 can provide the piezoelectric element 31 with an elastic force perpendicular to the contact surface of the friction guide 32, so that the piezoelectric element 31 can abut against the friction guide 32, and since the elastic member 33 can elastically deform when the piezoelectric element 31 vibrates to play a buffering role, an excessive or insufficient friction force between the piezoelectric element 31 and the friction guide 32 due to vibration of the piezoelectric element 31 can be avoided, and the stability of the lens assembly 20 during movement can be improved.
Alternatively, the elastic member 33 includes a first elastic arm 331, a second elastic arm 332, and a fixing slot 333, where the fixing slot 333 is located between the first elastic arm 331 and the second elastic arm 332, for accommodating and fixing the piezoelectric element 31;
the two sides of the mounting bracket 21 are respectively provided with a first clamping groove and a second clamping groove, the convex part of the first elastic arm 331 is clamped in the first clamping groove, and the convex part of the second elastic arm 332 is clamped in the second clamping groove.
In an embodiment of the present application, referring to fig. 5, the elastic member 33 may include a first elastic arm 331, a second elastic arm 332, and a fixing slot 333, where the fixing slot 333 is located between the first elastic arm 331 and the second elastic arm 332, and is used for accommodating and fixing the piezoelectric element 31. Specifically, in an alternative embodiment, the slot wall of the fixing slot 333 may have a snap-fit structure, so as to lock the piezoelectric element 31 in the fixing slot 333. Of course, in other alternative embodiments, the fixing groove 333 may be fixedly connected to the piezoelectric element 31 by bonding or welding, and the like, which is not limited herein.
The two sides of the mounting bracket 21 may be provided with a first clamping groove and a second clamping groove, one end of the first elastic arm 331 may have a protruding portion of a buckle, and one end of the second elastic arm 332 may also have a protruding portion of a buckle, so that the first elastic arm 331 may be clamped in the first clamping groove, and the second elastic arm 332 may be clamped in the second clamping groove, so as to realize connection between the elastic member 33 and the mounting bracket 21.
In addition, when the first elastic arm 331 and the second elastic arm 332 are engaged with the mounting bracket 21, a certain elastic deformation may occur, so that the piezoelectric element 31 accommodated in the fixing groove 333 may be abutted against the friction guide 32 by the elastic restoring force, that is, the abutment between the piezoelectric element 31 and the friction guide 32 is achieved by the elastic member 33.
Optionally, the camera module further includes a power supply member and a flexible circuit (Flexible Printed Circuit, FPC) board, one end of the FPC board 40 is connected to the piezoelectric element 31, and the other end is connected to the power supply member, so that the power supply member is electrically connected to the piezoelectric element 31.
In the embodiment of the present application, the power supply member is electrically connected to the piezoelectric element 31 through the FPC board 40, so as to apply a voltage to the piezoelectric element 31, and the FPC board 40 may be partially disposed on the mounting base 10, thereby further reducing space occupation. Meanwhile, when the piezoelectric element 31 moves along the friction guide 32, the flexible circuit board may be deformed to some extent to avoid obstructing the movement of the piezoelectric element 31.
Further, the flexible circuit FPC board 40 includes a bending portion 41, a first connecting arm 42 and a second connecting arm 43, the bending portion 41 is located between the first connecting arm 42 and the second connecting arm 43, the first connecting arm 42 is connected with the piezoelectric element 31, the second connecting arm 43 is connected with the power supply member, and the first connecting arm 42 and the second connecting arm 43 are disposed at an included angle;
a first angle is formed between the first connecting arm 42 and the second connecting arm 43 when the piezoelectric element 31 is moved to the first position, and a second angle is formed between the first connecting arm 42 and the second connecting arm 43 when the piezoelectric element 31 is moved to the second position.
In an embodiment of the present application, referring to fig. 6, the FPC board 40 may have a bending portion 41, the first connecting arm 42 and the second connecting arm 43 at two ends of the bending portion 41 are respectively connected with the piezoelectric element 31 and the power supply member, and the first connecting arm 42 and the second connecting arm 43 are disposed at an included angle, so that the first connecting arm 42 and the second connecting arm 43 can avoid obstructing the movement of the piezoelectric element 31 by changing the included angle during the movement of the piezoelectric element 31 along the friction guide member 32.
Referring to fig. 1 to 2, fig. 1 and 2 are schematic diagrams of the lens assembly 20 in the first position and the second position, respectively, and it can be seen that the first connecting arm 42 and the second connecting arm 43 respectively present different first angles and second angles when the lens assembly 20 is in the first position and the second position, and the first angles are larger than the second angles.
It is apparent that, in fig. 1 to 2, the angle between the first connection arm 42 and the second connection arm 43 gradually decreases when the lens assembly 20 moves downward, and the angle between the first connection arm 42 and the second connection arm 43 gradually increases when the lens assembly 20 moves upward, so that by providing the bending portion 41, the obstruction to the movement of the piezoelectric element 31 is avoided in a manner of changing the first connection arm 42 and the second connection arm 43.
Optionally, the camera module further comprises a guide post 11, and the guide post 11 is fixed on the mounting seat 10;
the lens assembly 20 is provided with a second limiting hole 22 at a position corresponding to the guide post 11, and the guide post 11 passes through the second limiting hole 22 and is in sliding contact with the inner wall of the second limiting hole 22.
In an embodiment of the present application, referring to fig. 1 or fig. 2, in order to further improve stability of the lens assembly 20 during movement, the camera module may further include one or more guide posts 11, the lens assembly 20 is provided with a second limiting hole 22 corresponding to the position of the guide post 11, and the guide post 11 is in sliding contact with an inner wall of the second limiting hole 22, so as to limit movement of the lens assembly 20 along the extending direction of the guide post 11.
It will be appreciated that the guide post 11 may serve alone to guide the lens assembly 20 or may cooperate with the friction guide 32 to guide the lens assembly 20. When the friction guide 32 passes through the first limiting hole 211, the extending direction of the guide post 11 may be identical to the extending direction of the friction guide 32.
Further, in the case where the guide posts 11 are plural, the plural guide posts 11 are provided at uniform intervals along the circumferential direction of the lens assembly 20, so that the lens assembly 20 can be further prevented from shaking when moving.
Meanwhile, the embodiment of the application also provides electronic equipment, which comprises the camera module of any embodiment. The electronic device provided by the embodiment of the application adopts all the technical schemes of the embodiment, so that the electronic device at least has all the beneficial effects brought by the technical schemes of the embodiment, and the details are not repeated here.
It should be appreciated that the electronic device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), and the like, and the non-mobile electronic device may be a personal computer (personal computer, PC), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The camera module is characterized by comprising a mounting seat, a lens assembly, a photosensitive chip and a driving assembly, wherein the lens assembly is arranged on the mounting seat, the photosensitive chip is arranged towards the lens assembly, and the driving assembly is connected with the lens assembly and is used for driving the lens assembly to be close to or far away from the photosensitive chip;
the driving assembly comprises a piezoelectric element and a friction guide piece, the friction guide piece is fixed on the mounting seat, the piezoelectric element is connected with the lens assembly and is abutted against the friction guide piece, and the piezoelectric element can move along the friction guide piece so as to drive the lens assembly to move;
a mounting bracket is arranged on one side of the lens assembly, and the friction guide piece is positioned between the mounting bracket and the piezoelectric unit;
the driving assembly further comprises an elastic piece, the elastic piece is fixedly connected with the mounting bracket, the elastic piece is fixedly connected with the piezoelectric element, and the elastic piece and the mounting bracket are matched to clamp the piezoelectric element;
the elastic piece comprises a first elastic arm, a second elastic arm and a fixing groove, wherein the fixing groove is positioned between the first elastic arm and the second elastic arm and is used for accommodating and fixing the piezoelectric element;
the two sides of the mounting bracket are respectively provided with a first clamping groove and a second clamping groove, the convex part of the first elastic arm is clamped in the first clamping groove, and the convex part of the second elastic arm is clamped in the second clamping groove.
2. The camera module of claim 1, wherein the friction guide is in a cylindrical configuration; the mounting bracket is provided with a first limiting hole, and the friction guide piece passes through the first limiting hole so that the mounting bracket can move along the axial direction of the friction guide piece.
3. The camera module of claim 2, wherein the mounting bracket comprises a first boss and a second boss, the first boss being disposed opposite the second boss;
the number of the first limiting holes is two, and the first limiting holes are respectively arranged on the first boss and the second boss; the piezoelectric element is positioned between the first boss and the second boss, and is abutted with the friction guide piece through the elastic piece.
4. The camera module of claim 1, further comprising a power supply member and a flexible circuit FPC board, one end of the FPC board being connected to the piezoelectric element, the other end being connected to the power supply member so that the power supply member is electrically connected to the piezoelectric element.
5. The camera module of claim 4, wherein the flexible circuit FPC board includes a bending portion, a first connection arm, and a second connection arm, the bending portion is located between the first connection arm and the second connection arm, the first connection arm is connected to the piezoelectric element, the second connection arm is connected to the power supply, and the first connection arm and the second connection arm are disposed at an included angle;
when the piezoelectric element moves to the first position, a first included angle is formed between the first connecting arm and the second connecting arm, and when the piezoelectric element moves to the second position, a second included angle is formed between the first connecting arm and the second connecting arm.
6. The camera module of claim 1, further comprising a guide post secured to the mount;
the lens assembly is provided with a second limiting hole at a position corresponding to the guide post, and the guide post penetrates through the second limiting hole and is in sliding contact with the inner wall of the second limiting hole.
7. The camera module according to claim 6, wherein in the case where the guide posts are plural, the plural guide posts are provided at regular intervals along the circumferential direction of the lens assembly.
8. An electronic device comprising a camera module according to any one of claims 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110974447.9A CN113660404B (en) | 2021-08-24 | 2021-08-24 | Camera module and electronic equipment |
| PCT/CN2022/113270 WO2023025027A1 (en) | 2021-08-24 | 2022-08-18 | Camera module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110974447.9A CN113660404B (en) | 2021-08-24 | 2021-08-24 | Camera module and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113660404A CN113660404A (en) | 2021-11-16 |
| CN113660404B true CN113660404B (en) | 2023-11-24 |
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| WO (1) | WO2023025027A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113660404B (en) * | 2021-08-24 | 2023-11-24 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN116979828A (en) * | 2022-04-18 | 2023-10-31 | 华为技术有限公司 | Piezoelectric motor, camera module and electronic equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113660404A (en) | 2021-11-16 |
| WO2023025027A1 (en) | 2023-03-02 |
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