CN117981335A

CN117981335A - Anti-shake driving assembly, camera module and anti-shake method, driving assembly for driving lens, assembly method of driving assembly and camera module

Info

Publication number: CN117981335A
Application number: CN202280057570.7A
Authority: CN
Inventors: 赵波杰; 阙嘉耀; 姚立锋; 魏青云; 傅强; 叶林敏; 卞强龙; 白华; 郑雪莹; 郑程倡
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2021-09-15
Filing date: 2022-09-14
Publication date: 2024-05-03
Also published as: WO2023040904A1

Abstract

The application provides an anti-shake driving assembly, which comprises an anti-shake fixing part, an anti-shake movable part and an anti-shake driving part, wherein the anti-shake driving part is suitable for driving the anti-shake movable part to move in an XOY plane set by an X axis and a Y axis or rotate in the XOY plane around a Z axis perpendicular to the X axis and the Y axis. The anti-shake driving assembly has a sufficiently large driving force, and provides driving performance with higher precision and longer stroke so as to meet the optical anti-shake requirement of the camera shooting module. The application also provides a driving assembly for driving the lens, the driving assembly comprises a driving carrier, a driving element for providing driving force and a friction plate, one end of the friction plate is fixedly connected with the driving carrier, and the other end of the friction plate is in functional connection with the driving element, so that the driving element can drive the friction plate to move along the adjustment direction. The driving assembly is more compact in structure, and meanwhile, the driving force can be large enough, so that the driving requirement of the camera shooting module is met.

Description

Anti-shake driving assembly, camera module and anti-shake method, driving assembly for driving lens, assembly method of driving assembly and camera module

Technical Field

The application relates to the field of camera modules, in particular to an anti-shake driving assembly and a camera module, wherein the anti-shake driving assembly can optically and anti-shake the camera module in multiple directions through one anti-shake driving part.

The application also relates to an anti-shake method of the camera module, which realizes the optical anti-shake of the camera module in multiple directions by a first piezoelectric actuator and a second piezoelectric actuator with special driving characteristics and matching with an anti-shake movable part.

The application also relates to a driving assembly for driving the lens, an assembling method of the driving assembly for driving the lens and an image pickup module.

Background

The description herein provides background information related to the present application only and does not necessarily constitute prior art.

With the popularity of mobile electronic devices, related technologies of camera modules used for mobile electronic devices to assist users in capturing images (e.g., videos or images) have been rapidly developed and advanced, and in recent years, camera modules have been widely used in various fields such as medical, security, industrial production, etc.

In order to meet the increasingly wide market demands, high pixels, large chips and small sizes are irreversible development trends of the existing camera modules. As the photosensitive chips are advanced toward high pixels and large chips, the sizes of optical components (e.g., filter elements, optical lenses) that fit the photosensitive chips are also gradually increasing, which brings new challenges to driving elements for driving the optical components for optical performance adjustment (e.g., optical focusing, optical anti-shake, etc.).

Specifically, the existing driving elements for driving the optical components are electromagnetic motors, such as Voice Coil Motors (VCM), shape memory alloy drivers (Shape of Memory Alloy Actuator SMA), and the like. However, as the weight increases with the increase in the size of the optical components, the existing electromagnetic motors have gradually failed to provide sufficient driving force to drive the optical components to move. Quantitatively, the existing voice coil motor and shape memory alloy driver are only suitable for driving optical components with a weight of less than 100mg, i.e. if the weight of the optical components exceeds 100mg, the existing driver cannot meet the application requirements of the camera module.

In addition, as the mobile terminal device is being miniaturized and thinned, the layout density of components inside the driving element is also being increased. Correspondingly, the coil and the magnet are arranged in the existing voice coil motor, when the distance between the two magnets is too short (less than 7 mm), the internal magnetic fields of the two magnets can affect each other, so that the magnets generate displacement or shake, and the stability of driving control of the magnets is reduced.

Therefore, there is a need for a new driving scheme for a camera module that is adaptive, and the new driver not only can meet the driving requirement of the camera module for optical performance adjustment, but also can meet the development requirements of light and thin camera modules.

Along with the rise of living standard, the requirements of consumers on the camera shooting function of terminal equipment such as mobile phones, tablets and the like are higher and higher, the effects of background blurring, night shooting and the like are required to be realized, the requirements are also provided for tele-shooting, and the consumers need terminal equipment capable of clearly shooting pictures at different distances.

In order to achieve the above-mentioned telephoto function, an optical zoom lens is usually added to the image capturing module to form an optical zoom module. The optical zoom module changes the focal length of the lens by changing the distance between the lenses of the optical zoom lens so as to achieve the purpose of zooming, can clearly shoot distant objects with different distances, and has relatively high imaging quality of the formed images. Zoom here refers to changing the focal length so as to take scenes of different distances.

However, as consumer demands increase, the parameter specifications of the optical zoom module are continuously increased, the size and weight of the lens are continuously increased, and the thrust requirement on the motor driving the lens to move is also higher and higher, so that the volume of the motor is also continuously increased. In addition, the existing electromagnetic motor scheme is short in stroke, large in size, and difficult to meet the requirement of optical zooming on lens movement due to electromagnetic interference.

In order to realize the telephoto function, an optical zoom lens is generally added in the image pickup module to form an optical zoom module. The optical zoom module changes the focal length of the lens by changing the distance between the lenses of the optical zoom lens so as to achieve the purpose of zooming, can clearly shoot distant objects with different distances, and has relatively high imaging quality of the formed images. Zoom here refers to changing the focal length so as to take scenes of different distances.

The existing driving Motor for driving the optically variable camera module adopts a Voice Coil Motor (VCM), a shape memory alloy driver (Shape of Memory Alloy Actuator: SMA) and the like. With the increasing requirement of imaging performance of the camera module, there is a higher requirement for each component of the camera module, especially for the zoom component, with the decreasing limitation in terms of size increase, in order to achieve a stronger function, the component design of the camera module also brings about an increase in component size, thereby resulting in a further increase in the weight of the component. In this case, the conventional electromagnetic motor is no longer able to provide a sufficient driving force. For example, existing voice coil motor drivers are only capable of driving optical lenses weighing less than 100mg, while memory alloy motors require a larger stroke space arrangement. That is, if the weight of the components to be driven in the camera module exceeds 100mg, the existing drivers will not meet the application requirements of the camera module or require an increase in a very large number of driver sizes to provide a large thrust. Therefore, a new generation of driving schemes must be developed for the camera module.

Disclosure of Invention

According to a first design of the present application, an anti-shake driving assembly and an image pickup module are provided.

An advantage of the present application is to provide an anti-shake driving assembly and an image capturing module, in which the image capturing module uses a novel piezoelectric actuator as a driving element to provide not only a sufficiently large driving force, but also driving performance with higher precision and longer stroke, so as to meet the requirement of optical performance adjustment of the image capturing module, for example, the requirement of optical anti-shake.

Still another advantage of the present application is to provide an anti-shake driving assembly and a camera module, in which the piezoelectric actuator is disposed in the camera module with a reasonable layout scheme to meet the structural and dimensional requirements of the camera module.

Another advantage of the present application is to provide an anti-shake driving assembly and an image capturing module, wherein the anti-shake driving assembly is configured with only one anti-shake movable portion to achieve anti-shake of the image capturing module in an XOY plane, that is, the anti-shake driving assembly has a relatively simplified driving configuration.

Other advantages and features of the application will become apparent from the following description, and may be realized by means of the instrumentalities and combinations particularly pointed out in the claims.

To achieve at least one of the above advantages, the present application provides an anti-shake driving assembly, comprising:

an anti-shake fixing portion;

An anti-shake movable portion, wherein a photosensitive assembly including a photosensitive chip is adapted to be interlockably mounted to the anti-shake movable portion; and

An anti-shake driving part disposed between the anti-shake fixing part and the anti-shake movable part, the anti-shake driving part including a first piezoelectric actuator and a second piezoelectric actuator frictionally coupled to the anti-shake movable part;

Wherein the first piezoelectric actuator and the second piezoelectric actuator are arranged on opposite sides of the photosensitive assembly in parallel with each other, and the first piezoelectric actuator and the second piezoelectric actuator are adapted to actuate the anti-shake movable portion and the photosensitive assembly to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane about a Z axis perpendicular to the X axis and the Y axis.

In the anti-shake driving assembly according to the present application, the first piezoelectric actuator and the second piezoelectric actuator are symmetrically arranged on opposite sides of the photosensitive assembly with respect to the photosensitive assembly with the X axis or the Y axis as a symmetry axis.

In the anti-shake driving assembly according to the present application, the first piezoelectric actuator and the second piezoelectric actuator are traveling wave type piezoelectric actuators, wherein the first piezoelectric actuator includes a first piezoelectric ceramic plate and a first friction driving portion protruding from the first piezoelectric ceramic plate, and the first piezoelectric ceramic plate is adapted to deform after being electrically driven to drive the first friction driving portion to perform unidirectional yaw reciprocation; the second piezoelectric actuator comprises a second piezoelectric ceramic plate and a second friction driving part protruding out of the second piezoelectric ceramic plate, and the second piezoelectric ceramic plate is suitable for being deformed after being electrically driven so as to drive the second friction driving part to do unidirectional deflection reciprocating motion.

In the anti-shake driving assembly according to the present application, the first piezoelectric actuator is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move in the direction set by the X-axis, and the second piezoelectric actuator is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move in the direction set by the X-axis by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis, and the second piezoelectric actuator is adapted to deform in the direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the X-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the X-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the X-axis to actuate the photosensitive assembly to rotate about the Z-axis in the XOY plane by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the Y-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the Y-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the Y-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the Y-axis to actuate the photosensitive assembly by the first piezoelectric actuator and the second piezoelectric actuator to rotate about the Z-axis in the XOY plane.

In the anti-shake driving assembly according to the present application, the first piezoelectric actuator and the second piezoelectric actuator have a rectangular structure having two opposite long sides along the length direction and two opposite short sides along the width direction.

In the anti-shake driving assembly according to the present application, the length direction of the first piezoelectric actuator and the second piezoelectric actuator is the X-axis direction, and the short side direction of the first piezoelectric actuator and the second piezoelectric actuator is the Y-axis direction.

In the anti-shake driving assembly according to the present application, the length direction of the first piezoelectric actuator and the second piezoelectric actuator is the Y-axis direction, and the short side direction of the first piezoelectric actuator and the second piezoelectric actuator is the X-axis direction.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion is smoothly supported on the first friction driving portion of the first piezoelectric actuator and the second friction driving portion of the second piezoelectric actuator.

In the anti-shake driving assembly according to the present application, the first piezoelectric ceramic plate is disposed at the anti-shake fixing portion, the first friction driving portion is frictionally coupled to the anti-shake movable portion, the second piezoelectric ceramic plate is disposed at the anti-shake fixing portion, and the second friction driving portion is frictionally coupled to the anti-shake movable portion.

In the anti-shake driving assembly according to the present application, the first piezoelectric actuator and the second piezoelectric actuator have the same height dimension.

In the anti-shake driving assembly according to the present application, the height dimension of the first piezoelectric actuator and the second piezoelectric actuator is 0.7mm to 0.9mm.

In the anti-shake driving assembly according to the present application, the anti-shake fixing portion has a receiving cavity, and the anti-shake movable portion is suspended in the receiving cavity of the anti-shake fixing portion.

In the anti-shake driving assembly according to the application, the anti-shake fixing portion includes a base and an upper cover that is fastened to the base, and the housing cavity is formed between the upper cover and the base.

In the anti-shake driving assembly according to the present application, a gap is provided between the anti-shake movable portion and the base, and a gap is provided between the anti-shake movable portion and the upper cover, in such a manner that the anti-shake movable portion is suspended in the receiving cavity of the anti-shake fixing portion.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion includes a carrier body and a carrier extension arm extending outwardly from the carrier body, wherein the first friction driving portion of the first piezoelectric actuator and the second friction driving portion of the second piezoelectric actuator are frictionally coupled to a lower surface of the carrier extension arm.

In the anti-shake driving assembly according to the present application, the carrier body has a seating groove lower than the carrier extension arm, wherein the photosensitive assembly is adapted to be mounted in the seating groove.

In the anti-shake driving assembly according to the present application, a receiving space is provided between the carrier extension arm and the substrate, and the first piezoelectric actuator and the second piezoelectric actuator are received in the receiving space.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion further includes a friction plate formed at a lower surface of the carrier extension arm, and the first friction driving portion of the first piezoelectric actuator and the second friction driving portion of the second piezoelectric actuator are frictionally coupled to the friction plate.

In the anti-shake driving assembly according to the present application, the anti-shake driving assembly further includes a driving substrate disposed between the anti-shake movable portion and the base, the driving substrate includes at least one conductive terminal and a connection terminal extending outward from the conductive terminal, and the first piezoelectric actuator and the second piezoelectric actuator are electrically connected to the at least one electrical connection terminal.

In the anti-shake driving assembly according to the present application, the at least one conductive terminal includes a first conductive terminal and a second conductive terminal, the first piezoelectric actuator is electrically connected to the first conductive terminal, and the second piezoelectric actuator is electrically connected to the second conductive terminal.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion has a slot formed at a side wall of the carrier body, the slot being configured to allow a wiring board of the photosensitive assembly to protrude from the slot to the seating slot.

In the anti-shake driving assembly according to the present application, the substrate has an opening formed at a sidewall thereof, wherein the connection terminal extends outward from the at least one conductive terminal and passes through the opening.

In the anti-shake driving assembly according to the application, the opening and the slot have a height difference.

In the anti-shake driving assembly according to the present application, the anti-shake driving assembly further includes a pre-compression device disposed between the anti-shake driving part and the anti-shake fixing part to force the anti-shake driving part to be frictionally coupled to the anti-shake movable part by pre-compression provided by the pre-compression device.

In the anti-shake driving assembly according to the present application, the pre-pressing means includes a first elastic member disposed between the substrate and a first piezoelectric plate of the first piezoelectric actuator to generate the pre-pressing force by an elastic force of the first elastic member itself to force a first friction driving part of the first piezoelectric actuator to abut against the friction plate in such a manner that the first friction driving part of the first piezoelectric actuator is frictionally coupled to the friction plate; the pre-pressing device further comprises a second elastic element arranged between the substrate and a second piezoelectric ceramic plate of the second piezoelectric actuator, so that the pre-pressing force generated by the elastic force of the second elastic element forces a second friction driving part of the second piezoelectric actuator to abut against the friction plate in such a way that the second friction driving part of the second piezoelectric actuator is frictionally coupled to the friction plate.

In the anti-shake driving assembly according to the present application, the thickness dimension of the first elastic member and the second elastic member is 10um to 50um.

In the anti-shake driving assembly according to the present application, the anti-shake driving assembly further includes a guide device provided between the upper surface of the carrier extension arm and the upper cover, the guide device being adapted to guide the anti-shake movable portion to move in the XOY plane set by the X axis and the Y axis.

According to another aspect of the present application, there is also provided an image capturing module including:

An optical lens;

The optical lens is held on a photosensitive path of the photosensitive assembly; and

The anti-shake driving assembly as described above, wherein the photosensitive assembly is mounted to an anti-shake movable portion of the anti-shake driving assembly.

According to a second design of the application, another anti-shake driving assembly and an image pickup module are provided.

Another advantage of the present application is to provide an anti-shake driving assembly and a camera module, in which the piezoelectric actuator is disposed in the camera module by adopting a reasonable layout scheme, so as to meet the structural and dimensional requirements of the camera module.

It is still another advantage of the present application to provide an anti-shake driving assembly and an image capturing module, wherein the anti-shake driving assembly is configured with only one anti-shake movable portion to achieve anti-shake of the image capturing module in an XOY plane, that is, the anti-shake driving assembly has a relatively simplified driving configuration.

Still another advantage of the present application is to provide an anti-shake driving assembly and an image capturing module, wherein a guiding device and an anti-shake driving portion of the anti-shake driving assembly are disposed on two sides of the anti-shake movable portion, and the guiding device, the anti-shake movable portion and the anti-shake driving portion are disposed in a holding cavity formed by the anti-shake fixing portion in a clamped manner, so that a guiding element of the guiding device not only guides movement of the anti-shake movable portion, but also provides pre-compression force to keep the anti-shake driving portion frictionally coupled to the anti-shake movable portion.

an anti-shake fixing part with a containing cavity;

an anti-shake movable part suspended in the accommodation chamber of the anti-shake fixing part to divide the accommodation chamber into an upper part and a lower part by the anti-shake movable part, wherein the anti-shake movable part is adapted to mount a photosensitive assembly thereon;

An anti-shake driving part disposed at a lower portion of the receiving chamber, wherein the anti-shake driving part includes a first piezoelectric actuator and a second piezoelectric actuator frictionally coupled to the anti-shake movable part, the first piezoelectric actuator and the second piezoelectric actuator being adapted to actuate the anti-shake movable part to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane around a Z axis perpendicular to the X axis and the Y axis; and

The guide element is clamped at the upper part of the accommodating cavity, and the clamped guide element generates a pre-pressure force for forcing the anti-shake movable part to abut against the first piezoelectric actuator and the second piezoelectric actuator so that the first piezoelectric actuator and the second piezoelectric actuator are frictionally coupled with the anti-shake movable part through the pre-pressure force.

In the anti-shake driving assembly according to the present application, the anti-shake fixing portion includes a base and an upper cover that is fastened to the base, an upper portion of the housing chamber is formed between the upper cover and the anti-shake movable portion, and a lower portion of the housing chamber is formed between the base and the anti-shake movable portion.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion is smoothly sandwiched between the first piezoelectric actuator and the guide member and between the second piezoelectric actuator and the guide member.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion includes a carrier body and a carrier extension arm extending outwardly from the carrier body, wherein the guide member is sandwiched between a lower surface of the upper cover and an upper surface of the carrier extension arm, and the first piezoelectric actuator and the second piezoelectric actuator are frictionally coupled to the lower surface of the carrier extension arm.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion further includes a friction plate formed at a lower surface of the carrier extension arm, and the first piezoelectric actuator and the second piezoelectric actuator are frictionally coupled to the friction plate.

In the anti-shake driving assembly according to the present application, the anti-shake driving assembly further includes a first guide groove concavely formed at the upper surface of the carrier extension arm, the guide member is received in the first guide groove, the guide member and the first guide groove form a guide means for guiding the anti-shake movable portion and the photosensitive assembly to move, wherein at least a portion of the guide member protrudes from the groove and abuts against the lower surface of the upper cover, in such a manner that the guide member is sandwiched between the lower surface of the upper cover and the upper surface of the carrier extension arm.

In the anti-shake driving assembly according to the present application, the guide member is a ball.

In the anti-shake driving assembly according to the application, the guide member is a slider.

In the anti-shake driving assembly according to the present application, the first guide groove extends in a direction set in the X-axis, and the guide device further includes a second guide groove concavely formed at a lower surface of the upper cover, the second guide groove extending in a direction set in the Y-axis.

In the anti-shake driving assembly according to the present application, the first guide groove extends in a direction set in the Y-axis, and the guide device further includes a second guide groove concavely formed at a lower surface of the upper cover, the second guide groove extending in a direction set in the X-axis.

In the anti-shake driving assembly according to the present application, the first guide section and the second guide groove are disposed opposite to each other and cross each other.

In the anti-shake driving assembly according to the present application, the first piezoelectric actuator and the second piezoelectric actuator are disposed parallel to each other on opposite sides of the photosensitive assembly.

In the anti-shake driving assembly according to the present application, the base has an opening formed at a side wall thereof, wherein the at least one conductive end of the connection terminal extends outward and passes through the opening.

An optical lens;

According to a third design of the present application, another anti-shake driving assembly and an image capturing module are provided.

Still another advantage of the present application is to provide an anti-shake driving assembly and an image pickup module, wherein the anti-shake driving assembly includes an anti-shake fixing portion, an anti-shake driving portion, an anti-shake movable portion, a pre-pressing device, a guide device, and a driving substrate, wherein the anti-shake driving portion, the driving substrate, and the pre-pressing device are disposed at one side of the anti-shake movable portion, and the guide device is disposed at the opposite side of the anti-shake movable portion, wherein when the anti-shake driving portion is driven, a friction force between the anti-shake driving portion and the anti-shake movable portion is greater than a friction force encountered by the guide device, in such a manner that the anti-shake driving portion can drive the anti-shake movable portion, and the guide device does not interfere with movement of the anti-shake movable portion while guiding movement of the anti-shake movable portion.

an anti-shake fixing part with a containing cavity;

An anti-shake movable part suspended in a housing cavity of the anti-shake fixing part, wherein the anti-shake movable part is suitable for mounting a photosensitive assembly thereon, and the housing cavity is divided into a first part and a second part by the anti-shake movable part;

An anti-shake driving part and a pre-compression device provided at a first portion of the housing chamber, wherein the anti-shake driving part includes a first piezoelectric actuator and a second piezoelectric actuator frictionally coupled to the anti-shake movable part by the pre-compression device, the first piezoelectric actuator and the second piezoelectric actuator being adapted to actuate the anti-shake movable part to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane around a Z axis perpendicular to the X axis and the Y axis; and

A guide device provided in the second portion of the housing chamber for guiding the movement of the anti-shake movable portion in the direction set in the X axis and/or the direction set in the Y axis;

Wherein, when the anti-shake driving portion is driven, a friction force between the anti-shake driving portion and the anti-shake movable portion is greater than a friction force encountered by the guide device at the second portion.

In the anti-shake driving assembly according to the present application, the anti-shake fixing portion includes a base and an upper cover that is fastened to the base, the receiving chamber is formed between the upper cover and the base, the first portion is formed between the upper cover and the anti-shake movable portion, and the second portion is formed between the base and the anti-shake movable portion.

In the anti-shake driving assembly according to the present application, the anti-shake driving section and the preliminary pressing device are clampingly disposed between the anti-shake movable section and the base, and the guide device is clampingly disposed between the upper cover and the anti-shake movable section, wherein when the first piezoelectric actuator and the second piezoelectric actuator are driven, a friction force between the first piezoelectric actuator and the second piezoelectric actuator and the anti-shake movable section is greater than a friction force between the guide device and the upper cover.

In the anti-shake driving assembly according to the present application, the pre-compression device includes a first elastic member disposed between the base and the first piezoelectric actuator to generate the pre-compression force by an elastic force of the first elastic member itself to force the first piezoelectric actuator to collide with the anti-shake movable portion in such a manner that the first piezoelectric actuator is frictionally coupled to the anti-shake movable portion; the pre-pressing device further includes a second elastic element disposed between the substrate and a second piezoelectric ceramic plate of the second piezoelectric actuator to force the second piezoelectric actuator to collide with the anti-shake movable portion by the pre-pressing force generated by the elastic force of the second elastic element itself in such a manner that the second piezoelectric actuator is frictionally coupled to the anti-shake movable portion.

In the anti-shake driving assembly according to the present application, the first elastic member and the second elastic member are formed by curing an adhesive.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion includes a carrier body, a carrier extension arm extending outwardly from the carrier body, and a friction plate formed at a lower surface of the carrier extension arm, wherein the first and second piezoelectric actuators are frictionally coupled to the friction plate of the anti-shake movable portion by the first and second elastic elements.

In the anti-shake driving assembly according to the present application, the guide means includes a first guide groove concavely formed at an upper surface of the carrier extension arm and a ball disposed in the first guide groove, wherein at least a portion of the ball protrudes from the first guide groove and abuts against a lower surface of the upper cover in such a manner that friction exists between the ball and the lower surface of the upper cover when the anti-shake movable portion and the photosensitive assembly are actuated by the first piezoelectric actuator and the second piezoelectric actuator.

In the anti-shake driving assembly according to the present application, the first guide groove section and the second guide groove section are disposed opposite to each other and cross each other.

In the anti-shake driving assembly according to the present application, the guide means includes a guide groove concavely formed at an upper surface of the carrier extension arm and a slider provided in the guide groove, wherein at least a portion of the slider protrudes from the guide groove and abuts against a lower surface of the upper cover in such a manner that the slider is sandwiched between the lower surface of the upper cover and the upper surface of the carrier extension arm.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion is smoothly supported on the first piezoelectric actuator and the second piezoelectric actuator.

An optical lens;

According to a fourth design of the present application, a further anti-shake driving assembly and an image capturing module are provided.

Still another advantage of the present application is to provide an anti-shake driving assembly and an image pickup module, in which a mounting surface for mounting a photosensitive assembly and a mounting surface for mounting a driving substrate in the anti-shake driving assembly have a height difference such that a wiring board of the photosensitive assembly and a driving substrate for turning on an anti-shake driving part extend at different heights of the anti-shake driving assembly, in such a manner that the driving substrate does not affect movement of the photosensitive assembly when the photosensitive assembly is moved for optical anti-shake.

An anti-shake fixing portion having a first mounting surface adapted to mount a driving substrate thereon;

An anti-shake movable portion having a second mounting surface adapted to mount a photosensitive member thereon, the first mounting surface and the second mounting surface having a height difference therebetween;

a drive substrate mounted on the first mounting surface; and

And an anti-shake driving part electrically connected to the driving substrate and located between the anti-shake fixing part and the anti-shake movable part, wherein the anti-shake driving part is suitable for actuating the anti-shake movable part and the photosensitive assembly to move in an XOY plane set by an X axis and a Y axis or rotate in the XOY plane around a Z axis perpendicular to the X axis and the Y axis.

In the anti-shake driving assembly according to the present application, the driving substrate mounted on the first mounting surface protrudes from the first height of the anti-shake driving assembly, and the wiring board of the photosensitive assembly mounted on the second mounting surface is adapted to protrude from the second height of the anti-shake driving assembly.

In the anti-shake driving assembly according to the application, the height difference between the first mounting surface and the second mounting surface is 0.1mm to 0.15mm.

In the anti-shake driving assembly according to the present application, the driving substrate protrudes from a first side of the anti-shake driving assembly, and the wiring board of the photosensitive assembly is adapted to protrude from the first side of the anti-shake driving assembly.

In the anti-shake driving assembly according to the present application, the driving substrate protrudes from a first side of the anti-shake driving assembly, and the wiring board of the photosensitive assembly is adapted to protrude from a second side of the anti-shake driving assembly.

In the anti-shake driving assembly according to the present application, the first side is adjacent to the second side, or the first side is opposite to the second side.

In the anti-shake driving assembly according to the application, the anti-shake fixing portion includes a base and an upper cover fastened to the base, the upper cover fastened to the base and the base form a receiving cavity therebetween, and the anti-shake movable portion is suspended in the receiving cavity of the anti-shake fixing portion.

In the anti-shake driving assembly according to the application, the inner bottom surface of the base forms the first mounting surface.

In the anti-shake driving assembly according to the present application, the base has an opening formed at a sidewall thereof, wherein the driving substrate protrudes from the opening at the first height out of the anti-shake driving assembly.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion includes a carrier body, a carrier extension arm extending outwardly from the carrier body, and a friction plate formed at a lower surface of the carrier extension arm, wherein the first piezoelectric actuator and the second piezoelectric actuator are frictionally coupled to the friction plate.

In the anti-shake driving assembly according to the present application, the carrier body has a seating groove lower than the carrier extension arm, and an inner bottom surface of the seating groove forms the second mounting surface.

In the anti-shake driving assembly according to the present application, the anti-shake movable portion has a slot formed at a side wall of the carrier body and communicating with the seating groove, the slot being configured to allow a wiring board of the photosensitive assembly to protrude from the slot to the anti-shake driving assembly at the second height.

In the anti-shake driving assembly according to the present application, the opening and the slot have a height difference of 0.1mm to 0.15mm.

In the anti-shake driving assembly according to the application, the opening and the slot are located at the first side of the anti-shake driving assembly.

In the anti-shake driving assembly according to the application, the driving substrate includes at least one conductive terminal and a connection terminal extending outward from the conductive terminal, and the first piezoelectric actuator and the second piezoelectric actuator are electrically connected to the at least one electrical connection terminal.

In the anti-shake driving assembly according to the application, the connection end extends outwards from the at least one conductive end and passes through the opening.

In the anti-shake driving assembly according to the present application, the anti-shake driving section includes a first piezoelectric actuator and a second piezoelectric actuator frictionally coupled to the anti-shake movable section, wherein the first piezoelectric actuator and the second piezoelectric actuator are disposed parallel to each other on opposite sides of the photosensitive assembly, and the first piezoelectric actuator and the second piezoelectric actuator are adapted to actuate the anti-shake movable section and the photosensitive assembly to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane about a Z axis perpendicular to the X axis and the Y axis.

In the anti-shake driving assembly according to the present application, the first piezoelectric ceramic plate is provided to the anti-shake fixing portion, and the first friction driving portion is frictionally coupled to the anti-shake movable portion; the second piezoelectric ceramic plate is disposed at the anti-shake fixing portion, and the second friction driving portion is frictionally coupled to the anti-shake movable portion.

In the anti-shake driving assembly according to the application, the first piezoelectric actuator and the second piezoelectric actuator have the same height dimension

In the anti-shake driving assembly according to the present application, the anti-shake driving assembly further includes a pre-pressing device disposed between the anti-shake driving part and the anti-shake fixing part to force the first friction driving part of the first piezoelectric actuator and the second friction driving part of the second piezoelectric actuator to be frictionally coupled to the anti-shake movable part by the pre-pressing force provided by the pre-pressing device.

In the anti-shake driving assembly according to the present application, the pre-pressing means includes a first elastic member disposed between the substrate and a first piezoelectric plate of the first piezoelectric actuator to generate the pre-pressing force by an elastic force of the first elastic member itself to force a first friction driving part of the first piezoelectric actuator to abut against the anti-shake movable part in such a manner that the first friction driving part of the first piezoelectric actuator is frictionally coupled to the anti-shake movable part; the pre-pressing device further comprises a second elastic element arranged between the substrate and a second piezoelectric ceramic plate of the second piezoelectric actuator, so that the pre-pressing force generated by the elastic force of the second elastic element forces a second friction driving part of the second piezoelectric actuator to abut against the anti-shake movable part, and the second friction driving part of the second piezoelectric actuator is frictionally coupled with the anti-shake movable part.

An optical lens;

The anti-shake driving assembly as described above, wherein the photosensitive member is mounted on the second mounting surface of the anti-shake movable portion of the anti-shake driving assembly.

According to a fifth design of the present application, an anti-shake method for an image capturing module is provided.

An advantage of the present application is to provide an anti-shake method for an image capturing module, which implements optical anti-shake of the image capturing module in multiple directions by combining a first piezoelectric actuator and a second piezoelectric actuator with special driving characteristics with one anti-shake movable portion.

Still another advantage of the present application is to provide an anti-shake method for an image capturing module, wherein the anti-shake method for an image capturing module is capable of achieving rotational anti-shake of the image capturing module in an XOY plane by using a first piezoelectric actuator and a second piezoelectric actuator having special driving characteristics in combination with an anti-shake movable portion.

In order to achieve at least one of the above advantages, the present application provides an anti-shake method of an image capturing module, which includes:

Simultaneously driving a first piezoelectric actuator and a second piezoelectric actuator of the anti-shake driving part to move a photosensitive assembly arranged on the anti-shake movable part along a first direction; and

And simultaneously driving the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving part to actuate the photosensitive assembly mounted on the anti-shake movable part to move along a second direction, wherein the first direction and the second direction are mutually perpendicular.

In the anti-shake method of the camera module according to the present application, the first piezoelectric actuator and the second piezoelectric actuator are disposed parallel to each other on opposite sides of the photosensitive assembly.

In the anti-shake method of the camera module according to the application, the first direction is an X-axis direction, and the second direction is a Y-axis direction.

In the anti-shake method of the camera module according to the application, the first direction is a Y-axis direction, and the second direction is an X-axis direction.

In the anti-shake method of the image capturing module according to the present application, the first piezoelectric actuator and the second piezoelectric actuator have a rectangular structure, wherein a length direction of the first piezoelectric actuator and the second piezoelectric actuator is the X-axis direction, and a width direction of the first piezoelectric actuator and the second piezoelectric actuator is the Y-axis direction.

In the anti-shake method of the camera module according to the present application, the first piezoelectric actuator and the second piezoelectric actuator are symmetrically arranged on opposite sides of the photosensitive member with the X-axis as a symmetry axis.

In an anti-shake method of an image capturing module according to the present application, a first piezoelectric actuator and a second piezoelectric actuator for driving an anti-shake driving section simultaneously to actuate a photosensitive member mounted on an anti-shake movable section to move in a first direction, includes: driving the first piezoelectric actuator to deform along the length direction of the first piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and driving a photosensitive assembly arranged on the anti-shake movable part to move along the first direction; and driving the second piezoelectric actuator to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and driving the photosensitive assembly mounted on the anti-shake movable part to move along the first direction.

In the anti-shake method of the image capturing module according to the present application, the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving section are simultaneously driven to actuate the photosensitive member mounted to the anti-shake movable section to move in a second direction, comprising: driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable part to move along the second direction, so as to drive the photosensitive assembly arranged on the anti-shake movable part to move along the second direction; and driving the second piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable part to move along the second direction, so as to drive the photosensitive assembly mounted on the anti-shake movable part to move along the second direction.

In the anti-shake method of the camera module according to the present application, the first piezoelectric actuator and the second piezoelectric actuator are symmetrically arranged on opposite sides of the photosensitive member with the Y axis as a symmetry axis.

In an anti-shake method of an image capturing module according to the present application, a first piezoelectric actuator and a second piezoelectric actuator for driving an anti-shake driving section simultaneously to actuate a photosensitive member mounted on an anti-shake movable section to move in a first direction, includes: driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable portion to move along the first direction so as to drive a photosensitive assembly mounted on the anti-shake movable portion to move along the first direction; and driving the second piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable portion to move along the first direction, so as to drive the photosensitive assembly mounted on the anti-shake movable portion to move along the first direction.

In the anti-shake method of the image capturing module according to the present application, the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving section are simultaneously driven to actuate the photosensitive member mounted to the anti-shake movable section to move in a second direction, comprising: driving the first piezoelectric actuator to deform along the length direction of the first piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and driving a photosensitive assembly arranged on the anti-shake movable part to move along the second direction; and driving the second piezoelectric actuator to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and driving the photosensitive assembly mounted on the anti-shake movable part to move along the second direction.

In the anti-shake method of the camera module according to the present application, the anti-shake movable portion is suspended in the housing cavity of the anti-shake fixing portion, and the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving portion are disposed between the anti-shake fixing portion and the anti-shake movable portion.

In the anti-shake method of the camera module according to the present application, the anti-shake movable portion is smoothly supported on the first actuator and the second piezoelectric actuator.

In the anti-shake method of the camera module according to the present application, the driving substrate for conducting the first piezoelectric actuator and the second piezoelectric actuator and the circuit board of the photosensitive assembly are staggered from each other in the housing cavity.

According to another aspect of the present application, there is also provided an anti-shake method of an image capturing module, including:

A first piezoelectric actuator for driving the anti-shake driving part to actuate the photosensitive assembly arranged on the anti-shake movable part to move along a first direction; and

And the second piezoelectric actuator of the anti-shake driving part is driven to move the photosensitive assembly mounted on the anti-shake movable part along a second direction, and the first direction and the second direction are parallel and opposite to each other so as to drive the photosensitive assembly to rotate through the first piezoelectric actuator and the second piezoelectric actuator.

In the anti-shake method of the image capturing module according to the present application, the first direction is a positive direction of the X-axis direction, and the second direction is a negative direction of the X-axis direction.

In the anti-shake method of the image capturing module according to the present application, the first direction is a negative direction of the X-axis direction, and the second direction is a positive direction of the X-axis direction.

In the anti-shake method of the image capturing module according to the present application, the first direction is a positive direction of the Y-axis direction, and the second direction is a negative direction of the Y-axis direction.

In the anti-shake method of the image capturing module according to the present application, the first direction is a negative direction of the Y-axis direction, and the second direction is a positive direction of the Y-axis direction.

In an anti-shake method of an image pickup module according to the present application, a first piezoelectric actuator driving an anti-shake driving section to actuate a photosensitive member mounted to an anti-shake movable section to move in a first direction, includes: driving the first piezoelectric actuator to deform along the length direction of the first piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and driving a photosensitive assembly arranged on the anti-shake movable part to move along the first direction; wherein, the second piezoelectric actuator of the anti-shake driving part is simultaneously driven to move the photosensitive assembly mounted on the anti-shake movable part along a second direction, comprising: and meanwhile, the second piezoelectric actuator is driven to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and thus the photosensitive assembly arranged on the anti-shake movable part is driven to move along the second direction.

In an anti-shake method of an image pickup module according to the present application, a first piezoelectric actuator driving an anti-shake driving section to actuate a photosensitive member mounted to an anti-shake movable section to move in a first direction, includes: driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable portion to move along the first direction so as to drive a photosensitive assembly mounted on the anti-shake movable portion to move along the first direction; wherein, the second piezoelectric actuator of the anti-shake driving part is simultaneously driven to move the photosensitive assembly mounted on the anti-shake movable part along a second direction, comprising: and simultaneously driving the second piezoelectric actuator to deform along the width direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and driving the photosensitive assembly arranged on the anti-shake movable part to move along the second direction.

According to a sixth embodiment of the application, a driving assembly and an imaging module for driving a lens are provided.

It is an object of the present invention to provide a drive assembly for driving a lens and an imaging module, wherein a drive carrier for carrying an adjustable group of lenses and a drive element for driving the movement of the drive carrier are reasonably constructed and arranged so as to provide sufficient structural space for the drive assembly and other components of the imaging module.

It is an object of the present invention to provide a drive assembly for driving a lens and an imaging module, wherein a friction plate is arranged between the drive element and a carrier body of the drive carrier, so that an optimized installation space is formed between the drive element and the carrier body of the drive carrier.

It is an object of the present invention to provide a driving assembly for driving a lens and an image pickup module, in which a friction plate divides a structural space between a driving element and a carrier body of the driving carrier into a first structural space and an opposite second structural space, thereby providing an optimized installation space and an improved layout for other components of the driving assembly, so that the driving assembly and the image pickup module are more compact in structure.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module, in which a friction plate divides a structural space between a driving element and a carrier body of the driving carrier into a first structural space and an opposite second structural space, in which a guide device and a position sensing element of the driving assembly are reasonably arranged, so that the driving assembly and the image pickup module are more compact in structure while being capable of sufficiently large driving force to meet driving requirements of the image pickup module.

It is an object of the present invention to provide a driving assembly for driving a lens and a camera module, in which a module structure design of the driving assembly and the camera module is adopted, not only is the module structure simplified, the module volume and weight are reduced, but also a larger lens moving stroke and thrust are provided.

In order to achieve the above object, according to a first aspect of the present application, there is provided a driving assembly for driving a lens, comprising:

a drive carrier having a carrier body for carrying an adjustable group of lenses;

A drive element for providing a drive force for moving the drive carrier in an adjustment direction, wherein a structural space is formed between the drive element and a carrier body of the drive carrier;

The friction plate is arranged in the structural space between the driving element and the carrier body of the driving carrier, one end of the friction plate is fixedly connected with the carrier body of the driving carrier, and the other end of the friction plate is in functional connection with the driving element, so that the driving element can drive the friction plate to move along the adjustment direction.

According to some embodiments of the first aspect of the application, the friction plate arranged in the structural space between the drive element and the carrier body of the drive carrier divides the structural space into a first structural space and a second structural space opposite the first structural space.

According to some embodiments of the first aspect of the present application, a position sensing element for sensing a movement position of the drive carrier or the friction plate is arranged in the first structural space, and a guiding device for guiding the movement of the drive carrier along the adjustment direction is arranged in the second structural space opposite to the first structural space.

According to some embodiments of the first aspect of the application, the drive carrier further comprises a connection end protruding outwards from the carrier body of the drive carrier, the connection end having a connection hole, the guiding means comprising a guide rod passing through the connection hole of the connection end of the drive carrier parallel to the adjustment direction, whereby the drive carrier is movable along the guiding means under the drive of the drive element.

According to some embodiments of the first aspect of the present application, the connection ends of the drive carrier comprise a first connection end extending outwardly from the carrier body of the drive carrier and a second connection end extending outwardly from the carrier body of the drive carrier, wherein the first connection end and the second connection end are located on opposite sides of the carrier body from each other, respectively, and

The guide device comprises a first guide rod and a second guide rod, wherein the first guide rod passes through a first connecting hole of a first connecting end of the drive carrier, and the second guide rod passes through a second connecting hole of a second connecting end of the drive carrier, so that the drive carrier can move along the first guide rod and the second guide rod of the guide device under the drive of the drive element, and the first guide rod and the second guide rod are parallel to each other and are arranged along the adjustment direction.

According to some embodiments of the first aspect of the present application, the second connection end of the drive carrier further has a seating groove into which the friction plate is inserted and fixedly connected with the carrier body of the drive carrier, wherein the seating groove is configured as a clamping rail between which the friction plate is clamped.

According to some embodiments of the first aspect of the present application, the driving element is configured as a piezoelectric actuator, comprising a piezoelectric plate and a friction driving part fixed on the piezoelectric plate, wherein the friction driving part is operatively connected with the friction plate so as to be able to drive the friction plate to move along the adjustment direction.

According to some embodiments of the first aspect of the application, a pre-compression device is provided for providing a pre-compression to the drive element such that the drive element is held in frictional contact with the friction plate under the effect of the pre-compression force.

According to some embodiments of the first aspect of the present application, a friction mechanism is provided between the pre-compression device and the friction plate, such that the friction plate is movably connected to the pre-compression device by the friction mechanism, wherein the pre-compression device presses the friction mechanism against the friction plate.

According to some embodiments of the first aspect of the application, the drive element is arranged on one side of the friction plate and the friction mechanism is arranged on the opposite side of the friction plate, such that the friction plate is clamped between the drive element and the friction mechanism under the influence of the pre-stressing means, such that the friction plate can be moved in the adjustment direction under the influence of the drive element.

According to some embodiments of the first aspect of the present application, the pre-compression device comprises an upper nip, a lower nip, and a connection connecting the upper and lower nips, wherein the pre-compression device elastically clamps the friction plate and the driving elements and the friction mechanism arranged on both sides of the friction plate between the upper and lower nips of the pre-compression device.

According to some embodiments of the first aspect of the application, one drive element is provided on each of two opposite sides of the friction plate, such that the friction plate is clamped between the two drive elements and is movable in the adjustment direction under the co-drive of the two drive elements.

According to some embodiments of the first aspect of the present application, the pre-compression device comprises an upper nip portion, a lower nip portion, and a connecting portion connecting the upper nip portion and the lower nip portion, wherein the pre-compression device elastically clamps the friction plate and the driving elements arranged at both sides of the friction plate between the upper nip portion and the lower nip portion of the pre-compression device.

According to some embodiments of the first aspect of the application, the drive assembly further comprises a drive substrate electrically connected to the drive element for delivering an electric current to the drive element, wherein the drive substrate is clamped to the drive element by the pre-compression means.

According to some embodiments of the first aspect of the present application, the driving substrate comprises a first conductive end, a second conductive end, and a connection strip connecting the first conductive end and the second conductive end, wherein the first conductive end is clamped on the corresponding driving element by an upper clamping portion of the pre-compression device, and the second conductive end is clamped on the corresponding driving element by a lower clamping portion of the pre-compression device.

According to some embodiments of the first aspect of the application, the second conductive end of the drive substrate is provided with an extension extending into the first structural space, wherein the position sensing element is provided on the extension and a sensing magnet is provided on the friction plate opposite to the position of the position sensing element.

According to some embodiments of the first aspect of the application, the drive assembly further comprises a carrier mechanism having a plurality of positioning posts forming a seating space in which the drive element is arranged under the grip of the precompression means, wherein the drive substrate is fixed on the positioning posts of the carrier mechanism.

According to some embodiments of the first aspect of the present application, the bearing mechanism further has a bearing connection portion fixedly connected with a driving housing, wherein the driving housing includes an upper housing and a lower housing connected with the upper housing in a closed structure.

According to some embodiments of the first aspect of the application, the friction mechanism comprises a groove or roller way configured on the pre-stressing device and/or friction plate and balls or slides arranged in the groove or roller way.

According to a second aspect of the present application, there is provided an image capturing module comprising

A driving assembly for driving the lens as described above;

the photosensitive assembly is used for receiving the optical signal and converting the received optical signal into an image signal;

The lens group comprises a fixed group and an adjustable group, wherein a driving element of the driving assembly is used for driving the adjustable group of the lens group.

According to some embodiments of the second aspect of the present application, the adjustable group of lens groups includes a zoom group and a focus group, wherein the driving carrier of the driving assembly includes a first carrier for carrying the zoom group and a second carrier for carrying the focus group, wherein the first carrier and the second carrier are coaxially arranged in sequence in an adjustment direction and can be driven individually.

According to a seventh embodiment of the application, a further drive assembly and an imaging module for driving a lens are provided.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module including first and second carriers for respectively carrying at least one adjustable group of lenses so as to be able to control and drive the at least one adjustable group to move in an adjustment direction independently of each other.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module in which an initial position of a driving element with respect to a corresponding friction plate is reasonably constructed and arranged so that the friction plate is always maintained within a driving range of the corresponding driving element during movement, and a stable, reliable and sufficiently large driving force is provided.

It is an object of the present invention to provide a driving assembly for driving a lens and an image pickup module, in which parts such as friction plates and driving elements of a first carrier and a second carrier are reasonably constructed and arranged so as to avoid interference between the first carrier and the second carrier during driving, ensure reliable and sufficient driving force, and make the driving assembly and the image pickup module more compact.

A driving carrier including a first carrier and a second carrier for carrying at least one adjustable group of lenses, respectively, wherein the first carrier and the second carrier are sequentially arranged on the same axis along an adjustment direction and are capable of moving along the adjustment direction independently of each other;

a first driving element;

The first friction plate is arranged between the carrier main body of the first carrier and the first driving element, one end of the first friction plate is fixedly connected with the carrier main body of the first carrier, and the other end of the first friction plate is in functional connection with the first driving element;

A second driving element;

The second friction plate is arranged between the carrier main body of the second carrier and the second driving element, one end of the second friction plate is fixedly connected with the carrier main body of the second carrier, and the other end of the second friction plate is in functional connection with the second driving element;

Wherein a first drive element and a first friction plate operatively connected to the first drive element are located on a first side of the drive assembly, a second drive element and a second friction plate operatively connected to the second drive element are located on a second side of the drive assembly, the first and second sides being opposite each other with respect to the axis of the first and second carriers,

The first friction plate fixedly connected with the carrier body of the first carrier extends along the adjusting direction in a direction away from the second carrier, and the second friction plate fixedly connected with the carrier body of the second carrier extends along the adjusting direction in a direction away from the first carrier.

According to some embodiments of the first aspect of the application, the first drive element is arranged in a middle position of the drive assembly in the adjustment direction, and the second drive element is arranged in a middle position of the drive assembly in the adjustment direction.

According to some embodiments of the first aspect of the application, the first and second drive elements are arranged parallel to each other along the adjustment direction.

According to some embodiments of the first aspect of the present application, the first driving element and the second driving element are configured as a piezoelectric actuator, and each of the first driving element and the second driving element includes a piezoelectric plate and a friction driving portion fixed to the piezoelectric plate, wherein the friction driving portion of the first driving element is operatively connected to the first friction plate so as to be capable of driving the first friction plate to move in the adjustment direction, and the friction driving portion of the second driving element is operatively connected to the second friction plate so as to be capable of driving the second friction plate to move in the adjustment direction.

According to some embodiments of the first aspect of the application, the first friction plate remains within the drive range of the first drive element throughout movement, and the second friction plate remains within the drive range of the second drive element throughout movement.

According to some embodiments of the first aspect of the application, in the initial position the friction drive of the first drive element is operatively connected to the first friction plate in a middle position of the first friction plate in the adjustment direction and/or the friction drive of the second drive element is operatively connected to the second friction plate in a middle position of the second friction plate in the adjustment direction.

According to some embodiments of the first aspect of the application, in the initial position, the friction drive of the first drive element is operatively connected to the first friction plate at one end of the first friction plate in the adjustment direction and/or the friction drive of the second drive element is operatively connected to the second friction plate at one end of the second friction plate in the adjustment direction.

According to some embodiments of the first aspect of the application, the drive assembly further comprises guiding means for guiding the first and second carriers along the adjustment direction, wherein the guiding means comprises at least one guide rod passing through the first and second carriers parallel to the adjustment direction, such that the first and second carriers are movable along the guiding means.

According to some embodiments of the first aspect of the present application, the first carrier comprises a first connection end extending outwardly from the carrier body of the first carrier and a second connection end extending outwardly from the carrier body of the first carrier, wherein the first connection end and the second connection end are located on opposite sides of the carrier body of the first carrier, respectively, wherein the first connection end of the first carrier has a first connection hole, the second connection end of the first carrier has a second connection hole, and

The second carrier further comprises a first connection end extending outwards from the carrier body of the second carrier and a second connection end extending outwards from the carrier body of the second carrier, wherein the first connection end and the second connection end are respectively positioned at two sides of the carrier body of the second carrier, which are opposite to each other, wherein the first connection end of the second carrier is provided with a first connection hole, the second connection end of the second carrier is provided with a second connection hole,

Wherein the guiding means comprises a first guiding rod and a second guiding rod, wherein the first guiding rod passes through the second connecting hole of the second connecting end of the first carrier and the first connecting hole of the first connecting end of the second carrier, and the second guiding rod passes through the first connecting hole of the first connecting end of the first carrier and the second connecting hole of the second connecting end of the second carrier, so that the first carrier and the second carrier can be individually moved along the first guiding rod and the second guiding rod of the guiding means under the driving of the first driving element and the second driving element, respectively, wherein the first guiding rod and the second guiding rod are arranged parallel to each other along the adjustment direction.

According to some embodiments of the first aspect of the application, the first guide bar and the second guide bar of the guiding device have a height difference.

According to some embodiments of the first aspect of the present application, the second connection end of the first carrier has a seating groove, the first friction plate is inserted into the seating groove of the second connection end and fixedly connected with the carrier body of the first carrier, and the second connection end of the second carrier has a seating groove, and the second friction plate is inserted into the seating groove of the second connection end and fixedly connected with the carrier body of the second carrier.

According to some embodiments of the first aspect of the application, the drive assembly further comprises a first pre-compression device arranged to provide a pre-compression to the first drive element such that the first drive element is held in frictional contact with the first friction plate under the pre-compression force, and

The drive assembly further comprises a second pre-compression device arranged to provide a pre-compression to the second drive element such that the second drive element is held in frictional contact with the second friction plate under said pre-compression force.

According to some embodiments of the first aspect of the present application, a first friction mechanism is provided between the first pre-compression device and the first friction plate, such that the first friction plate is movably connected with the first pre-compression device by the first friction mechanism, and

And a second friction mechanism is arranged between the second pre-compression device and the second friction plate, so that the second friction plate is movably connected with the second pre-compression device through the second friction mechanism.

According to some embodiments of the first aspect of the present application, a first driving member is provided on one side of the first friction plate, a first friction mechanism is provided on the opposite other side of the first friction plate such that the first friction plate is sandwiched between the first driving member and the first friction mechanism, and the first friction plate is movable in the adjustment direction by the driving of the first driving member, and

The second friction plate is provided with a second driving element on one side face thereof and a second friction mechanism on the other opposite side face thereof such that the second friction plate is sandwiched between the second driving element and the second friction mechanism and is movable in the adjustment direction by the driving of the second driving element.

According to some embodiments of the first aspect of the application, the first and second pre-compression devices comprise an upper nip, a lower nip, and a connection connecting the upper and lower nips,

Wherein the first pre-compression device elastically clamps the first friction plate and the first driving element and the first friction mechanism arranged at both sides of the first friction plate between an upper clamping part and a lower clamping part of the first pre-compression device, and

The second pre-pressing device elastically clamps the second friction plate between the upper clamping portion and the lower clamping portion of the second pre-pressing device, and the second driving element and the second friction mechanism arranged at both sides of the second friction plate.

According to some embodiments of the first aspect of the present application, one first driving member is provided on each of two opposite sides of the first friction plate such that the first friction plate is sandwiched between the two first driving members and is movable in the adjustment direction by the cooperative driving of the two first driving members, and

A second drive element is arranged on each of the two opposite sides of the second friction plate such that the second friction plate is clamped between the two second drive elements and is movable in the adjustment direction under the co-drive of the two second drive elements.

Wherein the first pre-compression device elastically clamps the first friction plate and the first driving element arranged at both sides of the first friction plate between the upper clamping part and the lower clamping part of the first pre-compression device, and

The second pre-compression device elastically clamps the second friction plate and the second driving element disposed at both sides of the second friction plate between the upper and lower clamping portions of the second pre-compression device.

According to some embodiments of the first aspect of the present application, a first drive substrate is arranged between the first pre-compression device and the first drive element, the first drive substrate being electrically connected to the first drive element for supplying current to the first drive element, wherein the first drive substrate is clamped to the first drive element by the first pre-compression device, and

And a second driving substrate is arranged between the second pre-compression device and the second driving element, and is electrically connected with the second driving element and used for conveying current to the second driving element, wherein the second driving substrate is clamped on the second driving element through the second pre-compression device.

According to some embodiments of the first aspect of the present application, the first driving substrate includes a first conductive end, a second conductive end, and a connection strap connecting the first conductive end and the second conductive end, wherein the first conductive end of the first driving substrate is clamped to the corresponding driving element by an upper clamping portion of the first pre-compression device, the second conductive end of the first driving substrate is clamped to the corresponding driving element by a lower clamping portion of the first pre-compression device, and

The second driving substrate comprises a third conductive end, a fourth conductive end and a connecting belt for connecting the third conductive end and the fourth conductive end, wherein the third conductive end of the second driving substrate is clamped on a corresponding driving element through a lower clamping part of the second pre-compression device, and the fourth conductive end of the second driving substrate is clamped on the corresponding driving element through an upper clamping part of the second pre-compression device.

According to some embodiments of the first aspect of the present application, the driving assembly further comprises a first carrier and a second carrier each having a plurality of positioning posts forming a placement space, wherein the first driving element is disposed in the placement space of the first carrier under the clamping of the first pre-compression device, and the first conductive end and the second conductive end of the first driving substrate are each fixed to the positioning posts of the first carrier outside the placement space of the first carrier, and

The second driving element is arranged in the arrangement space of the second bearing mechanism under the clamping of the second pre-pressing device, and the third conductive end and the fourth conductive end of the second driving substrate are respectively fixed on the positioning column of the second bearing mechanism outside the arrangement space of the second bearing mechanism.

According to some embodiments of the first aspect of the present application, the first bearing mechanism and the second bearing mechanism further have bearing connection parts respectively, the bearing connection parts are fixedly connected with a driving housing, wherein the driving housing comprises an upper housing and a lower housing connected with the upper housing into a closed structure.

According to some embodiments of the first aspect of the application, the first friction mechanism comprises a groove or roller way configured on the first pre-compression device and/or the first friction plate and a ball or slider arranged in the groove or roller way, and

The second friction means comprise grooves or roller tracks formed on the second pre-stressing means and/or the second friction plate, and balls or slides arranged in the grooves or roller tracks.

A driving assembly for driving the lens as described above;

According to some embodiments of the second aspect of the application, the adjustable group of lens groups comprises a zoom group and a focus group, wherein the first carrier of the driving assembly is for carrying the first carrier of the zoom group and the second carrier of the driving assembly is for carrying the focus group, wherein the first carrier and the second carrier are individually drivable by the first driving element and the second driving element, respectively.

According to an eighth aspect of the present application, there is provided a driving assembly for driving a lens, an assembling method thereof, and an image capturing module.

An object of the present invention is to provide a driving assembly for driving a lens, an assembling method thereof, and a camera module, in which a carrying mechanism has a seating space in which a driving element can be accommodated, thereby providing a simple and reliable supporting means and an optimized structural space for other parts of the driving assembly and the camera module, and simplifying an assembling process of the driving assembly.

An object of the present invention is to provide a driving assembly for driving a lens, an assembling method thereof, and an image capturing module, wherein a bearing mechanism has a bearing connection portion configured to be fixedly connected with a driving housing of the driving assembly, thereby providing a simple and reliable fixing measure for other parts of the driving element and simplifying an assembling process of the driving assembly.

An object of the present invention is to provide a driving assembly for driving a lens, an assembling method thereof, and an image pickup module, in which a bearing mechanism has a positioning post capable of providing a mounting plane having good flatness to a driving substrate and capable of defining a substrate length and a connection width of the driving substrate, thereby optimizing the composition and structure of the entire driving assembly and simplifying the assembling process of the driving assembly.

An object of the present invention is to provide a driving assembly for driving a lens, an assembling method thereof, and an image pickup module, in which other parts of the driving assembly are reasonably constructed and arranged based on a bearing mechanism, so that the driving assembly and the image pickup module are more compact in structure while ensuring sufficient driving force can be provided.

An object of the present invention is to provide a driving assembly for driving a lens, an assembling method thereof, and a camera module, wherein a module structure design of the driving assembly and the camera module is adopted, so that not only is a module structure simplified, a module volume and a module weight reduced, but also a larger lens moving stroke and a larger lens pushing force are provided.

A driving element for providing a driving force for moving the driving carrier in an adjustment direction;

a carrying mechanism having a seating space in which the driving element is accommodated; and

And a driving substrate fixed on the carrying mechanism and electrically connected with the driving element accommodated in the accommodating space of the carrying mechanism for supplying current to the driving element.

According to some embodiments of the first aspect of the application, the carrier means comprises a plurality of positioning posts extending towards the carrier body of the drive carrier, the plurality of positioning posts forming a seating space of the U-shaped opening.

According to some embodiments of the first aspect of the present application, the driving substrate includes a first conductive end, a second conductive end, and a connection strap connecting the first conductive end and the second conductive end, wherein the first conductive end and the second conductive end of the driving substrate are fixed on a positioning post of the bearing mechanism.

According to some embodiments of the first aspect of the application, the carrier mechanism further has a carrier connection arranged for fixed connection with a drive housing of the drive assembly.

According to some embodiments of the first aspect of the present application, the driving housing includes an upper housing and a lower housing connected to the upper housing in a closed structure, a connecting groove is provided on a side wall of the lower housing, and a bearing connection portion of the bearing mechanism is embedded in the connecting groove to be fixed.

According to some embodiments of the first aspect of the application, the load-bearing connection of the load-bearing means is configured as a T-shaped insert which engages into a connection slot of the lower housing for fixation.

According to some embodiments of the first aspect of the present application, an overlapping groove is further provided on a side wall of the lower case of the driving case, the overlapping groove including an inner overlapping groove and an outer overlapping groove, and a height of the inner overlapping groove is greater than a height of the outer overlapping groove.

According to some embodiments of the first aspect of the application, the drive assembly further comprises a friction plate disposed between the carrier body of the drive carrier and the drive element, wherein one end of the friction plate is fixedly connected to the carrier body of the drive carrier and the other end is operatively connected to the drive element such that the drive element is capable of driving the friction plate to move.

According to some embodiments of the first aspect of the application, the bearing means is arranged between the pre-stressing device and the drive housing and supports the pre-stressing device, the drive element and the drive carrier.

According to some embodiments of the first aspect of the application, the bearing means fix the pre-stressing device and the drive element to the drive housing.

According to some embodiments of the first aspect of the application, the drive element is arranged on one side of the friction plate and the friction mechanism is arranged on the opposite side of the friction plate such that the friction plate is clamped between the drive element and the friction mechanism under the influence of the pre-stressing means such that the friction plate is movable in the adjustment direction under the influence of the drive element.

According to some embodiments of the first aspect of the application, the drive substrate is arranged between the pre-stressing device and the drive element, wherein the drive substrate is clamped on the drive element by the pre-stressing device.

According to some embodiments of the first aspect of the application, the first conductive end of the drive substrate is clamped on the corresponding drive element by an upper clamp of the pre-compression device, and the second conductive end of the drive substrate is clamped on the corresponding drive element by a lower clamp of the pre-compression device.

According to some embodiments of the first aspect of the application, the second conductive end of the drive substrate is provided with an extension, wherein a position sensing element is provided on the extension and a sensing magnet is provided on the friction plate opposite to the position of the position sensing element.

According to some embodiments of the first aspect of the application, the drive assembly further comprises a guiding means arranged in sliding connection with the drive carrier, such that the drive carrier is movable along the guiding means under the drive of the drive element.

According to some embodiments of the first aspect of the application, the guiding means comprises a guide rod which passes through the connection hole of the connection end of the drive carrier parallel to the adjustment direction, so that the drive carrier can be moved along the guiding means under the drive of the drive element.

A driving assembly for driving the lens as described above;

According to a third aspect of the present application, there is provided an assembling method of a driving assembly for driving a lens, comprising the steps of:

s1, embedding a pre-compression device into a bearing mechanism so as to fixedly connect the pre-compression device with the bearing mechanism;

s2, electrically connecting the two driving elements to a driving substrate;

s3, placing the driving substrate between an upper clamping part and a lower clamping part of the pre-compression device;

S4, placing a friction plate between the two driving elements, enabling the friction plate to be fixedly connected with a driving carrier, and clamping the two driving elements through the pre-compression device to enable the two driving elements to be respectively in friction contact with the friction plate;

s5, fixedly connecting the bearing mechanism with the driving shell.

According to some embodiments of the third aspect of the present application, in step S2, the piezoelectric plates of the two driving elements are electrically connected to the first conductive end and the second conductive end of the driving substrate, respectively, and the friction driving parts of the two driving elements are disposed opposite to each other.

According to some embodiments of the third aspect of the present application, in step S3, the upper and lower clamps of the pre-press device are caused to clamp the first and second conductive ends of the drive substrate, respectively, the drive substrate and the drive element are clamped in the pre-press device by the upper and lower clamps of the pre-press device, and the drive element is further disposed on the carrier mechanism.

According to some embodiments of the third aspect of the present application, in step S4, the first conductive end and the second conductive end of the driving substrate are fixed on the positioning posts of the bearing mechanism, respectively.

According to some embodiments of the third aspect of the present application, in step S5, the bearing connection portion of the bearing structure is disposed in the connection groove of the lower housing of the driving housing to be fixed, and then the upper housing of the driving housing is fixed to the lower housing to complete the assembly of the driving assembly.

According to a ninth aspect of the present application, there is provided a driving assembly and an image capturing module for driving a lens.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module in which a driving element and a friction plate for providing a driving force to a driving carrier are reasonably constructed and arranged, thereby ensuring that the driving assembly and the image pickup module have sufficiently small dimensions.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module in which the overall height of upper and lower driving elements and a friction plate sandwiched between the upper and lower driving elements is not greater than the maximum height of the lens group, thereby ensuring that the image pickup module has a sufficiently small size in the height direction.

It is an object of the present invention to provide a driving assembly for driving a lens and an image pickup module in which components such as upper and lower driving elements and a friction plate are reasonably constructed and arranged so that the upper and lower driving elements can cooperatively drive a driving carrier for carrying an adjustable group of lenses and provide a stable, reliable and sufficiently large driving force.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module, in which parts such as friction plates and driving elements of a first carrier and a second carrier are reasonably constructed and arranged, so that a zoom group and a focus group of the lens group are prevented from interfering with each other during driving, while ensuring more compact structures of the driving assembly and the image pickup module.

The friction plate is arranged between the driving element and the carrier main body of the driving carrier, one end of the friction plate is fixedly connected with the carrier main body of the driving carrier, and the other end of the friction plate is in functional connection with the driving element, so that the driving element can drive the friction plate to move along the adjustment direction;

wherein the driving element comprises an upper driving element and a lower driving element which are arranged at two sides of the friction plate and clamp the friction plate in the middle, so that the friction plate can move along the adjustment direction under the cooperative driving action of the upper driving element and the lower driving element,

Wherein the overall height of the upper drive element, lower drive element, and friction plate sandwiched between the upper drive element and lower drive element is no greater than the maximum height of the carrier body of the drive carrier.

According to some embodiments of the first aspect of the application, pre-compression means are provided for providing pre-compression to the upper and lower drive elements such that the upper and lower drive elements are held in frictional contact with the friction plate under the effect of the pre-compression force.

According to some embodiments of the first aspect of the present application, the pre-compression device comprises an upper nip, a lower nip, and a connection connecting the upper and lower nips, wherein the pre-compression device elastically clamps the friction plate and the upper and lower driving elements arranged on both sides of the friction plate between the upper and lower nips of the pre-compression device.

According to some embodiments of the first aspect of the application, the drive assembly further comprises a drive substrate electrically connected to the upper and lower drive elements for delivering current to the upper and lower drive elements, wherein the drive substrate is clamped to the upper and lower drive elements by the pre-compression means.

According to some embodiments of the first aspect of the application, the driving substrate comprises a first conductive end, a second conductive end and a connecting strip connecting the first conductive end and the second conductive end, wherein the first conductive end is clamped on the upper driving element by an upper clamping portion of the pre-compression device, and the second conductive end is clamped on the lower driving element by a lower clamping portion of the pre-compression device.

According to some embodiments of the first aspect of the present application, the upper driving element and the lower driving element are configured as piezoelectric actuators, respectively, comprising a piezoelectric plate and a friction driving part fixed on the piezoelectric plate, wherein the friction driving parts of the upper driving element and the lower driving element are operatively connected with the friction plate at both sides, respectively, so as to be capable of cooperatively driving the friction plate to move along the adjustment direction.

According to some embodiments of the first aspect of the application, the drive assembly further comprises a carrier mechanism having a plurality of positioning posts forming a seating space in which the upper and lower drive elements are arranged under the grip of the precompression means, wherein the drive substrate is fixed on the positioning posts of the carrier mechanism.

According to some embodiments of the first aspect of the present application, the bearing mechanism further has a bearing connection portion fixedly connected with the driving housing, wherein the driving housing includes an upper housing and a lower housing connected with the upper housing in a closed structure.

According to some embodiments of the first aspect of the present application, a connecting groove is provided on a side wall of the lower housing of the driving housing, and the bearing connection portion of the bearing mechanism is embedded in the connecting groove for fixing.

According to some embodiments of the first aspect of the application, the drive assembly further comprises guiding means arranged in sliding connection with the drive carrier such that the drive carrier is movable along the guiding means under co-operation of the upper and lower drive elements.

According to some embodiments of the first aspect of the application, the guiding means comprises a guide rod which passes through the connecting hole of the connecting end of the drive carrier parallel to the adjustment direction, so that the drive carrier can be moved along the guiding means under the co-drive of the upper and lower drive element.

The guide device comprises a first guide rod and a second guide rod, wherein the first guide rod passes through a first connecting hole of a first connecting end of the driving carrier, and the second guide rod passes through a second connecting hole of a second connecting end of the driving carrier, so that the driving carrier can move along the first guide rod and the second guide rod of the guide device under the cooperative driving of the upper driving element and the lower driving element, and the first guide rod and the second guide rod are parallel to each other and are arranged along the adjusting direction.

A drive assembly for driving a lens as claimed in any one of claims 1 to 15;

the lens group comprises a fixed group and an adjustable group, wherein the adjustable group used for cooperatively driving the lens group is arranged under the cooperative driving of the upper driving element and the lower driving element of the driving assembly.

According to some embodiments of the second aspect of the application, the drive assembly further comprises:

a first driving member for providing a driving force for moving the first carrier in the adjustment direction;

A first friction plate arranged between the carrier body of the first carrier and the first driving element, wherein one end of the first friction plate is fixedly connected with the carrier body of the first carrier, and the other end of the first friction plate is in functional connection with the first driving element, so that the first driving element can drive the first friction plate to move along the adjustment direction,

The first driving element comprises a first upper driving element and a first lower driving element, and the first upper driving element and the first lower driving element are arranged on two sides of the first friction plate and clamp the first friction plate in the middle, so that the first friction plate can move along the adjustment direction under the cooperative driving action of the first upper driving element and the first lower driving element;

a second driving member for providing a driving force for moving the second carrier in the adjustment direction;

A second friction plate arranged between the carrier body of the second carrier and the second driving element, wherein one end of the second friction plate is fixedly connected with the carrier body of the second carrier, and the other end of the second friction plate is in functional connection with the second driving element, so that the second driving element can drive the second friction plate to move along the adjustment direction,

The second driving element comprises a second upper driving element and a second lower driving element which are arranged on two sides of the second friction plate and clamp the second friction plate in the middle, so that the second friction plate can move along the adjustment direction under the cooperative driving action of the second upper driving element and the second lower driving element.

According to some embodiments of the second aspect of the application, the first upper and lower drive elements disposed on both sides of and sandwiching the first friction plate are located on a first side of the drive assembly, and the second upper and lower drive elements disposed on both sides of and sandwiching the second friction plate are located on a second side of the drive assembly, wherein the first and second sides are opposite each other with respect to the axis of the first and second carriers.

According to some embodiments of the second aspect of the present application, the overall height of the first upper and lower drive elements and the first friction plate sandwiched between the first upper and lower drive elements is not greater than the maximum height of the lens group, and the overall height of the second upper and lower drive elements and the second friction plate sandwiched between the second upper and lower drive elements is not greater than the maximum height of the lens group.

According to a tenth design of the present application, a driving assembly and an image capturing module for driving a lens are also provided.

It is an object of the present invention to provide a driving assembly for driving a lens and an image pickup module in which related parts of the driving assembly are arranged in a central symmetry manner as viewed along an axis, thereby ensuring a simple design of the driving assembly and the image pickup module, a standardized and more compact structure, and providing a stable, reliable and sufficiently large driving force.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module in which driving elements for providing driving force to a driving carrier are reasonably constructed and arranged such that the first driving element and the second driving element are center-symmetrical as viewed along an axis, so that the first driving element and the second driving element can be constructed as a standard piece having the same structure, thereby reducing manufacturing costs and simplifying an assembly process.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module in which friction mechanisms are reasonably constructed and arranged such that the first friction mechanism and the second friction mechanism are center-symmetrical as viewed along an axis, so that the first friction mechanism and the second friction mechanism can be constructed as standard members having the same structure, thereby reducing manufacturing costs and simplifying assembly processes.

An object of the present invention is to provide a driving assembly for driving a lens and an image pickup module in which a friction plate, a driving element, and an optional friction mechanism are reasonably constructed and arranged so that a structural unit formed therefrom can be constructed as a standard member having the same structure, so that the structural design of the driving assembly and the image pickup module is simpler, and the manufacturing cost and the assembly process are reduced.

In order to achieve the above object, according to a first aspect of the present application, there is provided a method of

A drive assembly for driving a lens, comprising:

a first driving element;

A second driving element;

wherein the first drive element and the second drive element are centrosymmetric as seen along said axis.

According to some embodiments of the first aspect of the application, the first driving element and the second driving element are configured as structurally identical standard.

A second driving member is provided on one side of the second friction plate, a second friction mechanism is provided on the opposite side of the second friction plate such that the second friction plate is sandwiched between the second driving member and the second friction mechanism, and the second friction plate is movable in the adjustment direction by the driving of the second driving member,

Wherein the first friction mechanism and the second friction mechanism are centrosymmetric as viewed along said axis.

According to some embodiments of the first aspect of the application, the first and second friction mechanisms are configured as structurally identical standard pieces.

According to some embodiments of the first aspect of the application, the first structural unit formed by the first drive element and the first friction mechanism and the second structural unit formed by the second drive element and the second friction mechanism are configured as structurally identical standard pieces and are centrosymmetric as seen along the axis.

The second pre-pressing device elastically clamps the second friction plate between the upper clamping part and the lower clamping part of the second pre-pressing device, and the second driving element and the second friction mechanism are arranged at both sides of the second friction plate.

A second driving element is arranged on two opposite sides of the second friction plate respectively, so that the second friction plate is clamped between the two second driving elements and can move along the adjustment direction under the cooperative driving action of the two second driving elements,

Wherein the two first driving elements and the two second driving elements are centrosymmetric as seen along said axis.

A second driving substrate is arranged between the second pre-compression device and the second driving element, the second driving substrate is electrically connected with the second driving element and is used for conveying current to the second driving element, wherein the second driving substrate is clamped on the second driving element through the second pre-compression device,

Wherein the first and second drive substrates are centrosymmetric as viewed along said axis.

According to a second aspect of the present application, there is provided an image capturing module, comprising:

a driving assembly for driving the lens as described above;

Further objects and advantages of the present application will become fully apparent from the following description and the accompanying drawings.

These and other objects, features and advantages of the present application will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims.

Drawings

The technical scheme of the present application will be described in further detail with reference to the accompanying drawings and examples. In the drawings, like reference numerals are used to refer to like parts unless otherwise specified. Wherein:

Fig. 1 illustrates a schematic diagram of an image capturing module according to an embodiment of the present application.

Fig. 2 illustrates a schematic diagram of a variant implementation of the camera module according to an embodiment of the application.

Fig. 3 illustrates a schematic diagram of another variant implementation of the camera module according to an embodiment of the present application.

Fig. 4 illustrates a schematic diagram of a photosensitive assembly of the camera module according to an embodiment of the present application.

Fig. 5 illustrates a schematic perspective exploded view of an anti-shake driving assembly of the camera module according to an embodiment of the application.

Fig. 6 illustrates a perspective view of an anti-shake movable portion in the anti-shake driving assembly according to an embodiment of the application.

Fig. 7 illustrates a schematic perspective exploded view of an anti-shake fixing portion in the anti-shake driving assembly according to an embodiment of the application.

Fig. 8 illustrates a schematic diagram of an anti-shake driving part in the anti-shake driving assembly according to an embodiment of the application.

Fig. 9 illustrates a schematic diagram of a piezoelectric actuator of the anti-shake driving part according to an embodiment of the application.

Fig. 10 illustrates a deformation operation schematic of the piezoelectric actuator according to an embodiment of the present application.

Fig. 11 illustrates a schematic semi-sectional view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 12 illustrates another perspective view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 13 illustrates still another perspective view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 14 illustrates a schematic diagram of the other half of the anti-shake drive assembly according to an embodiment of the application.

Fig. 15 illustrates a schematic diagram of a modified implementation of the anti-shake driving section according to an embodiment of the present application.

Fig. 16 illustrates a flowchart of an anti-shake method of the camera module according to an embodiment of the application.

Fig. 17 illustrates a schematic diagram of an anti-shake process of the camera module according to an embodiment of the application.

Fig. 18 illustrates another flowchart of an anti-shake method of the camera module according to an embodiment of the application.

Fig. 19 illustrates another flowchart of an anti-shake method of the camera module according to an embodiment of the application.

Fig. 20 illustrates another flowchart of an anti-shake method of the camera module according to an embodiment of the application.

Fig. 21 illustrates a schematic diagram of an image capturing module according to an embodiment of the present application.

Fig. 22 illustrates a schematic diagram of a variant implementation of the camera module according to an embodiment of the present application.

Fig. 23 illustrates a schematic diagram of another variant implementation of the camera module according to an embodiment of the present application.

Fig. 24 illustrates a schematic diagram of a photosensitive assembly of the camera module according to an embodiment of the present application.

Fig. 25 illustrates a schematic perspective exploded view of an anti-shake driving assembly of the camera module according to an embodiment of the application.

Fig. 26 illustrates a perspective view of an anti-shake movable portion in the anti-shake driving assembly according to an embodiment of the application.

Fig. 27 illustrates a schematic perspective exploded view of an anti-shake fixing portion in the anti-shake driving assembly according to an embodiment of the application.

Fig. 28 illustrates a schematic diagram of an anti-shake driving part in the anti-shake driving assembly according to an embodiment of the application.

Fig. 29 illustrates a schematic diagram of a piezoelectric actuator of the anti-shake driving section according to an embodiment of the application.

Fig. 30 illustrates a deformation operation schematic of the piezoelectric actuator according to an embodiment of the present application.

Fig. 31 illustrates a schematic semi-sectional view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 32 illustrates another perspective view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 33 illustrates still another perspective view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 34 illustrates a schematic diagram of the other half of the anti-shake drive assembly according to an embodiment of the application.

Fig. 35 illustrates a schematic diagram of a modified implementation of the anti-shake driving section according to an embodiment of the present application.

Fig. 36 illustrates a schematic diagram of another variant implementation of the anti-shake driving section according to an embodiment of the application.

Fig. 37 illustrates a schematic diagram of an image capturing module according to an embodiment of the present application.

Fig. 38 illustrates a schematic diagram of a variant implementation of the camera module according to an embodiment of the present application.

Fig. 39 illustrates a schematic diagram of another variant implementation of the camera module according to an embodiment of the present application.

Fig. 40 illustrates a schematic diagram of a photosensitive assembly of the camera module according to an embodiment of the present application.

Fig. 41 illustrates a schematic perspective exploded view of an anti-shake driving assembly of the camera module according to an embodiment of the application.

Fig. 42 illustrates a perspective view of an anti-shake movable portion in the anti-shake driving assembly according to an embodiment of the application.

Fig. 43 illustrates a schematic perspective exploded view of an anti-shake fixing portion in the anti-shake driving assembly according to an embodiment of the application.

Fig. 44 illustrates a schematic diagram of an anti-shake driving part in the anti-shake driving assembly according to an embodiment of the application.

Fig. 45 illustrates a schematic diagram of a piezoelectric actuator of the anti-shake driving section according to an embodiment of the application.

Fig. 46 illustrates a deformation operation schematic of the piezoelectric actuator according to an embodiment of the present application.

Fig. 47 illustrates a semi-sectional view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 48 illustrates another perspective view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 49 illustrates still another perspective view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 50 illustrates a schematic diagram of the other half of the anti-shake drive assembly according to an embodiment of the application.

Fig. 51 illustrates a schematic diagram of a modified implementation of the anti-shake driving section according to an embodiment of the present application.

Fig. 52 illustrates a schematic diagram of another variant implementation of the anti-shake driving section according to an embodiment of the application.

Fig. 53 illustrates a schematic diagram of an image capturing module according to an embodiment of the present application.

Fig. 54 illustrates a schematic diagram of a variant implementation of the camera module according to an embodiment of the present application.

Fig. 55 illustrates a schematic diagram of another variant implementation of the camera module according to an embodiment of the present application.

Fig. 56 illustrates a schematic diagram of a photosensitive assembly of the camera module according to an embodiment of the present application.

Fig. 57 illustrates a schematic perspective exploded view of an anti-shake driving assembly of the camera module according to an embodiment of the application.

Fig. 58 illustrates a perspective view of an anti-shake movable portion in the anti-shake driving assembly according to an embodiment of the application.

Fig. 59 illustrates a schematic perspective exploded view of an anti-shake fixing portion in the anti-shake driving assembly according to an embodiment of the application.

Fig. 60 illustrates a schematic diagram of an anti-shake driving part in the anti-shake driving assembly according to an embodiment of the application.

Fig. 61 illustrates a schematic diagram of a piezoelectric actuator of the anti-shake driving section according to an embodiment of the application.

Fig. 62 illustrates a deformation actuation schematic of the piezoelectric actuator according to an embodiment of the present application.

Fig. 63 illustrates a schematic diagram of a semi-cutaway of the anti-shake drive assembly according to an embodiment of the application.

Fig. 64 illustrates another perspective view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 65 illustrates still another perspective view of the anti-shake driving assembly according to an embodiment of the application.

Fig. 66 illustrates a schematic diagram of the other half of the anti-shake drive assembly according to an embodiment of the application.

Fig. 67 illustrates a schematic diagram of a modified implementation of the anti-shake driving section according to an embodiment of the application.

Fig. 68 illustrates a schematic diagram of another variant implementation of the anti-shake driving section according to an embodiment of the application.

Fig. 69 is a schematic view of an optical path of some embodiments of camera modules according to the present application.

Fig. 70 is a schematic cross-sectional view of some embodiments of camera modules according to the present application.

Fig. 71 is an exploded view of some embodiments of a drive assembly according to the present application.

Fig. 72 is an exploded view of a drive carrier and friction plate according to some embodiments of the application.

Fig. 73 is an axial view of some embodiments of a first carrier according to the application.

Fig. 74 is an axial view of some embodiments of a second carrier according to the application.

FIG. 75 is a perspective view of a first carrier and a second carrier including a first friction plate and a second friction plate fixedly coupled to the first carrier and the second carrier, respectively, according to some embodiments of the application;

FIG. 76 is an axial view of a first carrier and a second carrier including a first friction plate and a second friction plate fixedly coupled to the first carrier and the second carrier, respectively, and a first guide bar and a second guide bar extending through the first carrier and the second carrier, respectively, in accordance with some embodiments of the present application;

fig. 77 is a perspective view of the structural state shown in fig. 76;

FIG. 78 is a plan view of a first carrier and a second carrier according to some embodiments of the present application, including a first friction plate and a second friction plate fixedly coupled to the first carrier and the second carrier, respectively, a first guide rod and a second guide rod penetrating the first carrier and the second carrier, and first and second driving members driving the first friction plate and the second friction plate, respectively;

Fig. 79 is a perspective view of the structural state shown in fig. 78;

FIGS. 80a-c are schematic illustrations of the relationship of the piezoelectric actuator to a friction plate according to some embodiments of the application;

FIG. 81 is a schematic side view of a first carrier including an assembled first friction plate, first drive element, and first friction mechanism according to some embodiments of the application;

FIG. 82 is a schematic side view of a second carrier including an assembled second friction plate, second drive element, and second friction mechanism according to some embodiments of the application;

FIG. 83 is a schematic side view of a first carrier including a first upper drive element and a first lower drive element on either side of a first friction plate in accordance with some embodiments of the application;

FIGS. 84a-d are schematic diagrams of piezoelectric actuation principles according to some embodiments of the present application;

FIG. 85 is a schematic side view of a second carrier including second upper and lower drive elements on either side of a second friction plate in accordance with some embodiments of the application;

FIG. 86 is a perspective view of a drive assembly according to some embodiments of the application;

FIG. 87 is a perspective view of a precompression device according to some embodiments of the present application;

FIG. 88 is a perspective view of a drive substrate according to some embodiments of the application;

FIG. 89 is a perspective view of a drive assembly including an installed precompression device and a drive base plate, according to some embodiments of the present application;

FIG. 90a is an axial view of a drive assembly according to some embodiments of the present application, wherein each friction plate is provided with a drive element and a friction mechanism on both sides, respectively;

FIG. 90b is an axial view of a drive assembly according to further embodiments of the present application, wherein each friction plate is provided with an upper drive element and a lower drive element on both sides, respectively;

FIG. 91 is a perspective view of a drive assembly including a mounted load bearing mechanism according to some embodiments of the application;

FIG. 92 is a perspective view of a load bearing mechanism according to some embodiments of the application;

FIG. 93 is a perspective view of a drive assembly according to some embodiments of the present application, including a drive housing having an upper housing and a lower housing;

FIG. 94 is a flow diagram of an assembly method of a drive assembly for driving a lens according to some embodiments of the application;

Fig. 95 is a flow chart of an assembly method of an image capturing module according to some embodiments of the present application.

Detailed Description

For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the application and is not intended to limit the scope of the application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that in the present specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Thus, the first drive element discussed below may also be referred to as a zoom drive element and the second drive element may also be referred to as a focus drive element without departing from the teachings of the present application. Similarly, the first driving substrate may also be referred to as a zoom substrate, the second driving substrate may also be referred to as a focus substrate, and so on.

In the drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for convenience of explanation. Specifically, the structural shapes shown in the drawings are shown by way of example. The figures are merely examples and are not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "containing," and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the application, use of "may" means "one or more embodiments of the application. Also, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

Exemplary camera Module

As shown in fig. 1 to 15, an image capturing module according to an embodiment of the present application is illustrated, which includes a photosensitive member 30, an optical lens 10 held on a photosensitive path of the photosensitive member 30, and an anti-shake driving assembly 20 for driving the photosensitive member 30 to move to achieve optical performance adjustment of the image capturing module.

Accordingly, in the embodiment of the present application, the anti-shake driving assembly 20 has a mounting groove located in a middle area thereof, wherein the photosensitive assembly 30 is mounted in the anti-shake driving assembly 20 in a manner of being received in the mounting groove, so that the anti-shake driving assembly 20 can carry the photosensitive assembly 30 to move along a preset direction when being driven, so as to adjust the optical performance of the camera module, for example, to perform optical anti-shake. And, the optical lens 10 is mounted on the anti-shake driving unit 20 in such a manner as to be fixed to the top surface of the anti-shake driving unit 20, and the optical lens 10 is positioned on the photosensitive path of the photosensitive unit 30, so that the photosensitive unit 30 can receive light projected from the optical lens 10 to perform imaging.

More specifically, as shown in fig. 1 to 3, the optical lens 10, which is held on the photosensitive path of the photosensitive assembly 30 to collect external imaging light, includes a lens barrel 11 and a lens group installed in the lens barrel 11, wherein the lens group includes at least one optical lens 12, and the number of the at least one optical lens 12 is not limited.

In a specific example of the present application, the optical lens 10 is fixedly disposed on the photosensitive path of the photosensitive assembly 30 in such a manner as to be directly disposed on the top surface of the anti-shake driving assembly 20. In another example of the present application, the optical lens 10 may be disposed on the top surface of the anti-shake driving assembly 20 through a lens holder 13, wherein the lens holder 13 has a through hole formed therein, through which light refracted by the optical lens 10 can be incident to the photosensitive assembly 30.

In still another example of the present application, the optical lens 10 may be disposed on the top surface of the anti-shake driving assembly 20 by a lens driving part 14, wherein the lens driving part 14 has a disposition space formed therein, the optical lens 10 is mounted in the disposition space of the lens driving part 14, and the lens driving part 14 is capable of driving the optical lens 10 to move to achieve an optical focusing and/or an optical anti-shake function. In this example, the lens driving section 14 may be a voice coil lens driving section 14, a piezoelectric lens driving section 14, an SMA (shape memory alloy ) lens driving section 14, or the like type of driving lens driving section 14. Further, in an example of the present application, the lens mount 13 or the lens driving section 14 may directly accommodate the plurality of optical lenses 12 of the optical lens 10; in another example of the present application, the lens holder 13 or the lens driving part 14 may accommodate the lens barrel 11 of the optical lens 10 and a plurality of optical lenses 12 provided in the lens barrel 11.

It should be noted that, in some embodiments of this specific example, the lens driving portion 14 further includes a lens focusing portion, where the lens focusing portion is adapted to drive the optical lens 10 to translate in the Z-axis direction, so as to adjust the distance between the optical lens 10 and the photosensitive assembly 30, so as to implement the focusing function of the optical lens 10. Also, in some embodiments of this specific example, the lens driving part 14 may further include a lens anti-shake part adapted to drive the optical lens 10 to translate in X-axis and Y-axis directions and/or rotate around Z-axis directions to achieve translational anti-shake and/or rotational anti-shake of the optical lens 10; or the lens anti-shake section is adapted to drive the optical lens 10 to rotate in the X-axis direction and in the Y-axis direction to achieve tilt anti-shake of the optical lens 10. Note that the lens driving section 14 may include only the lens focusing section or the lens anti-shake section; the lens driving part 14 may also include both the lens focusing part and the lens anti-shake part, so that the lens driving part 14 may realize not only a lens focusing function but also a lens anti-shake function.

As shown in fig. 4, the photosensitive assembly 30 includes a circuit board 31, a photosensitive chip 32, an electronic component 33, a base 34, and a filter element 35. The photosensitive chip 32 is disposed on the circuit board 31 and electrically connected to the circuit board 31, wherein the base 34 is disposed on the circuit board 31 and located at a peripheral side of the photosensitive chip 32, the filter element 35 is mounted on the base 34 and is held on a photosensitive path of the photosensitive chip 32, and the photosensitive chip 32 includes a photosensitive region and a non-photosensitive region surrounding the photosensitive region.

In one example of the present application, the photosensitive chip 32 is mounted on the upper surface of the circuit board 31 and electrically connected to the circuit board 31 by wire bonding. Of course, in other examples of the present application, the photosensitive chip 32 may be disposed on the circuit board 31 and/or electrically connected to the circuit board 31 in other manners, for example, flip-chip attached to the lower surface of the circuit board 31, which is not limited to the present application. It should be appreciated that in an embodiment of the present application, the photosensitive path of the photosensitive chip 32 forms the photosensitive path of the photosensitive assembly 30.

The base 34 is disposed on the wiring board 31 to encapsulate the electronic component 33 on the wiring board 31 and to support other components. In a specific example of the present application, the base is implemented as a separately molded plastic bracket that is attached to the surface of the wiring board 31 by an adhesive and is used to support other components. Of course, in other examples of the present application, the base may be formed on the circuit board 31 in other manners, for example, the base may be implemented as a molded base integrally formed at a predetermined position of the circuit board 31 through a molding process, which is not limited to the present application.

In the embodiment of the present application, the filter element 35 is held on the photosensitive path of the photosensitive chip 32, for filtering the imaging light entering the photosensitive chip 32. In a specific example, the filter element 35 is mounted on the base 34 and corresponds to at least a photosensitive region of the photosensitive chip 32, in such a way that the filter element 35 is held on a photosensitive path of the photosensitive chip 32. It is worth mentioning that in other examples of the application the filter element 35 can also be mounted on the base 34 in other ways, for example, a filter element holder is provided on the base 34 first, and the filter element 35 is mounted on the filter element 35 holder, i.e. in this example the filter element 35 can be mounted indirectly on the base 34 via other supports. In other examples of the present application, the filter element 35 may be mounted at other positions of the variable-focus camera module, for example, the filter element 35 may be formed in the optical lens 10 (for example, as a filter film attached to a surface of a certain optical lens of the zoom lens group), which is not limited to the present application.

As mentioned above, in order to meet the increasingly wide market demands, high pixel, large chip, and small size are the irreversible development trend of the existing camera modules. As the light sensing chip 32 is advanced toward high pixels and large chips, the size of optical components (e.g., the filter element 35, the optical lens 10) that fit the light sensing chip 32 is also gradually increased, which brings new challenges to driving elements for driving the optical components for optical performance adjustment (e.g., optical focusing, optical anti-shake, etc.).

Through researches and experiments, the application provides a novel driver which has larger driving force and better driving performance (particularly comprises higher-precision driving control and longer driving stroke) and is also suitable for the development trend of light weight and thin type of the current camera module.

In particular, the novel driver is a piezoelectric actuator with a novel structure, and the piezoelectric actuator can meet the technical requirements of the camera module on the driver. And, the piezoelectric actuator is further arranged in the camera module in a proper arrangement manner to form an anti-shake driving assembly 20 for driving the photosensitive assembly 30 to adjust the position, so that the anti-shake driving assembly meets the structural design requirement and the dimensional design requirement of the camera module.

As shown in fig. 5 to 15, the anti-shake driving assembly 20 includes an anti-shake movable portion 21, an anti-shake driving portion 22, an anti-shake fixing portion 23, a pre-pressing device 24, a guiding device 25 and a driving substrate 26, wherein the anti-shake movable portion 21 is adapted to mount the photosensitive assembly 30 thereon, the anti-shake movable portion 21 is movable relative to the anti-shake fixing portion 23, the anti-shake driving portion 22 is disposed between the anti-shake fixing portion 23 and the anti-shake movable portion 21, and the anti-shake driving portion 22 is frictionally coupled to the anti-shake movable portion 21 to drive the anti-shake movable portion 21 to move relative to the anti-shake fixing portion 23 by the frictional driving force provided by the anti-shake driving portion 22, in this way, the photosensitive assembly 30 is driven to move so as to realize adjustment of the optical performance of the camera module.

In particular, in the embodiment of the present application, the photosensitive member 30 is interlockingly mounted to the anti-shake movable portion 21, for example, in a specific example of the present application, the photosensitive member 30 is fixedly mounted to the anti-shake movable portion 21 so that the photosensitive member 30 is also interlocked by the anti-shake movable portion 21 when the anti-shake driving portion 22 drives the anti-shake movable portion 21. The anti-shake driving section 22 is provided between the anti-shake fixing section 23 and the anti-shake movable section 21, and for example, in a specific example of the present application, the anti-shake driving section 22 is provided between the anti-shake fixing section 23 and the movable section in such a manner as to connect the anti-shake movable section 21 and the anti-shake fixing section 23, respectively. The anti-shake driving part 22 is adapted to drive the photosensitive assembly 30 to translate in an X-axis direction (i.e., a direction set by the X-axis) and/or rotate around a Z-axis direction (i.e., a direction set by the Y-axis) to realize translational anti-shake and/or rotational anti-shake of the photosensitive assembly 30.

It should be noted that, in the embodiment of the present application, the X-axis direction and the Y-axis direction are perpendicular to each other, and the Z-axis direction is perpendicular to the plane in which the X-axis direction and the Y-axis direction lie, in other words, the X-axis, the Y-axis, and the Z-axis form a three-dimensional coordinate system.

Specifically, in the embodiment of the present application, the anti-shake fixing portion 23 has a receiving cavity, and the anti-shake movable portion 21 and the anti-shake driving portion 22 are received in the receiving cavity of the anti-shake fixing portion 23, that is, in the embodiment of the present application, the anti-shake fixing portion 23 may receive the anti-shake movable portion 21 and the anti-shake driving portion 22 therein. And, the top surface of the anti-shake fixing portion 23 is used to set the optical lens 10 so that the optical lens 10 can be disposed on the light sensing path of the light sensing assembly 30 through the anti-shake fixing portion 23. The pre-compression device 24 is disposed between the anti-shake fixing portion 23 and the anti-shake driving portion 22, and the pre-compression device 24 maintains frictional coupling between the anti-shake driving portion 22 and the anti-shake movable portion 21 by the pre-compression force generated by the pre-compression device. The guiding device 25 is disposed between the anti-shake movable portion 21 and the anti-shake fixing portion 23, and the anti-shake movable portion 21 is suspended in the anti-shake fixing portion 23 by the guiding device 25, so as to provide guidance for movement of the chip anti-shake movable portion 21. The driving substrate 26 is electrically connected to the anti-shake driving portion 22, and is used for conducting a circuit of the anti-shake driving assembly 20.

More specifically, in the embodiment of the present application, the anti-shake movable portion 21 is a mover, which is capable of translating in the X-axis direction and the Y-axis direction and/or rotating around the Z-axis direction under the driving of the anti-shake driving portion 22, so as to implement the translation anti-shake and/or rotation anti-shake function of the photosensitive assembly 30. In the present application, since the anti-shake driving portion 22 uses a special driver as a driving element, the number of the anti-shake movable portions 21 is one, that is, only one anti-shake movable portion 21 is required to perform a translational motion in the X-axis direction and the Y-axis direction and/or a rotational motion around the Z-axis direction under the driving of the anti-shake driving portion 22.

Those skilled in the art will recognize that in the conventional driving scheme of the piezoelectric motor, two movable parts (i.e., two movable carriers) are required to be disposed to achieve translational movement in the X-axis direction and the Y-axis direction, i.e., one movable carrier is driven by the piezoelectric motor in the X-direction and the other movable carrier is driven by the piezoelectric motor in the Y-direction. The present application can realize translational movement in the X-axis direction and the Y-axis direction by only one anti-shake movable portion 21 (i.e., only one movable carrier) as opposed to the conventional piezoelectric motor scheme. Accordingly, the height of the anti-shake driving assembly 20 is reduced by reducing the number of the anti-shake movable portions 21, so that the height of the camera module is reduced, and the arrangement of the internal components of the anti-shake driving assembly 20 is more compact due to the reduction of the number of the anti-shake movable portions 21, so as to facilitate the reduction of the length and width dimensions of the anti-shake driving assembly 20.

As shown in fig. 5 and 6, in the embodiment of the present application, the anti-shake movable portion 21 includes a carrier body 211, a carrier extension arm 212, and a friction plate 213. The carrier body 211 forms the seating groove for mounting the photosensitive assembly 30 therein, wherein the photosensitive assembly 30 is fixed in the seating groove so that the photosensitive assembly 30 can be moved by the chip anti-shake movable portion 21.

Preferably, in the embodiment of the present application, the carrier body 211 has a slot formed on a sidewall thereof, so that the circuit board 31 of the photosensitive assembly 30 can be protruded through the slot and extend to the main board of the electronic device. That is, in the embodiment of the present application, the carrier body 211 has a door formed at a side portion thereof to allow the wiring board 31 of the photosensitive assembly 30 to pass through and protrude out of the anti-shake driving assembly 20 through the door.

As shown in fig. 5 and 6, in an embodiment of the present application, the carrier extension arm 212 extends outwardly from the carrier body 211, e.g., the carrier extension arm 212 integrally extends outwardly from the carrier body 211. In particular, in the embodiment of the present application, the carrier extension arm 212 has a certain height difference from the bottom surface of the carrier body 211, that is, the carrier extension arm 212 does not extend at the same height as the carrier body 211. More specifically, in embodiments of the present application, the carrier extension arm 212 has a height that is greater than the height of the carrier body 211, and the carrier extension arm 212 extends upwardly and outwardly from the carrier body 211. Here, "upward" as referred to in the present application means from the image side to the object side, and "outward" means a direction away from the optical axis. The carrier extension arm 212 having a height difference is matched with the carrier main body 211 and the anti-shake fixing portion 23 to form a receiving space along the Z-axis direction, and the receiving space can be used for receiving the anti-shake driving portion 22, so that the structure of the camera module is more compact.

As shown in fig. 5 and 6, in the embodiment of the present application, the friction plate 213 is disposed on the carrier extension arm 212, for example, the friction plate 213 is integrally formed on the carrier extension arm 212, but of course, the friction plate 213 and the carrier extension arm 212 may have separate structures, for example, the friction plate 213 is a separate component and is attached to the carrier extension arm 212 by an adhesive. Preferably, the friction plate 213 is provided at a side of the carrier extension arm 212 facing the anti-shake driving section 22, that is, at a lower surface of the carrier extension arm 212. Accordingly, in the embodiment of the present application, the friction plate 213 is interposed between the anti-shake movable portion 21 and the anti-shake driving portion 22 so that the anti-shake movable portion 21 is frictionally coupled to the carrier extension arm 212 by the anti-shake driving portion 22 and the pre-compression device 24. It should be understood that the friction plate 213 functions to increase the friction between the anti-shake driving section 22 and the anti-shake movable section 21.

Further, as shown in fig. 5 and 6, in the embodiment of the present application, the carrier extension arm 212 has two U-shaped grooves formed at opposite sides, respectively, wherein the anti-shake movable portion 21 may be clamped by the U-shaped grooves during the installation of the anti-shake movable portion 21, so that the installation is facilitated.

As shown in fig. 5 to 7, in a specific example of the present application, the anti-shake fixing portion 23 includes an upper cover 231 and a base 232 that are fastened to each other, wherein a housing cavity is formed between the upper cover 231 and the base 232, and the housing cavity is used for housing the anti-shake movable portion 21, the anti-shake driving portion 22, the pre-pressing device 24, the guiding device 25 and the driving substrate 26 therein, so that not only the components in the anti-shake driving assembly 20 can be protected from being damaged due to impact, but also dust, dirt or stray light can be prevented from entering the anti-shake driving assembly 20.

More specifically, in this specific example, the upper cover 231 is sleeved over the base 232, and the upper cover 231 has an opening corresponding to the photosensitive assembly 30 so that light reflected by an object can reach the photosensitive assembly 30. The upper cover 231 and the base 232 may be made of metal, such as a cold rolled carbon Sheet (SPCC) or a stainless steel, which not only has a certain magnetic conduction function (i.e. enhances the magnetic field), but also can help to dissipate heat of the photosensitive assembly 30. It should be understood that, in this specific example, the upper cover 231 and the base 232 are both stators, that is, the upper cover 231 and the base 232 remain stationary when the optical anti-shake function of the photosensitive assembly 30 is implemented, wherein the optical lens 10 is fixedly disposed on the upper cover 231 and is located on the photosensitive path of the photosensitive assembly 30.

When the upper cover 231 and the base 232 are made of metal, notches are required to be formed at four corners of the upper cover 231 and the base 232, and edges adjacent to the notches can be bent, so that the upper cover 231 and the base 232 can be nested and fixed. Since the photosensitive member 30 is disposed in the disposition groove of the anti-shake movable portion 21 in the present application, even dust entering through the notch of the anti-shake fixing portion 23 does not enter the photosensitive member 30, and thus does not affect the image forming effect.

That is, in the embodiment of the present application, the anti-shake fixing portion 23 has a receiving cavity, and the anti-shake movable portion 21 is suspended in the receiving cavity of the anti-shake fixing portion 23. Specifically, the anti-shake fixing portion 23 includes a base 232 and an upper cover 231 that is fastened to the base 232, and the accommodating cavity is formed between the upper cover 231 and the base 232. Further, a gap is provided between the anti-shake movable portion 21 and the base 232, and a gap is provided between the anti-shake movable portion 21 and the upper cover 231, in such a manner that the anti-shake movable portion 21 is suspended in the housing chamber of the anti-shake fixing portion 23.

It should be noted that in this specific example, there is a gap between the bottom surface of the upper cover 231 and the top surface of the carrier extension arm 212 of the anti-shake movable portion 21, which may be used to accommodate the guide device 25 so that the anti-shake movable portion 21 supports the upper cover 231 with the anti-shake fixing portion 23 via the guide device 25. A gap is also formed between the bottom surface of the base 232 and the bottom surface of the anti-shake movable portion 21, that is, the anti-shake movable portion 21 is not in direct contact with the upper cover 231 of the anti-shake fixing portion 23 and the base 232, so as to reduce friction generated by the anti-shake movable portion 21 during movement.

Further, as shown in fig. 8 to 14, in the embodiment of the present application, the anti-shake driving part 22 is disposed between the anti-shake movable part 21 and the anti-shake fixing part 23, and preferably, the anti-shake driving part 22 is disposed between the carrier extension arm 212 of the anti-shake movable part 21 and the base 232 of the anti-shake fixing part 23. The anti-shake driving part 22 is mounted on the anti-shake fixing part 23, and then is in frictional contact with the anti-shake movable part 21 to drive the anti-shake movable part 21 to translate in the X-axis direction and the Y-axis direction and/or rotate around the Z-axis direction by the anti-shake driving part 22. It should be noted that, in the embodiment of the present application, the anti-shake driving portion 22 is disposed at a side portion of the carrier body 211 of the anti-shake movable portion 21, that is, the anti-shake driving portion 22 is disposed in the accommodating space formed by the carrier extension arm 212 and the base 232, so as to avoid increasing the height of the anti-shake driving assembly 20.

More specifically, in the embodiment of the present application, the anti-shake driving part 22 includes a first piezoelectric actuator 221 and a second piezoelectric actuator 222, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed on opposite sides of the anti-shake driving assembly 20, respectively. Preferably, in the embodiment of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed parallel to each other on opposite sides of the photosensitive member 30, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are adapted to actuate the anti-shake movable portion 21 and the photosensitive member 30 to move in an XOY plane set in an X axis and a Y axis or to rotate in the XOY plane about a Z axis perpendicular to the X axis and the Y axis.

The first piezoelectric actuator 221 and the second piezoelectric actuator 222 have the same height so that the anti-shake movable portion 21 is provided on the anti-shake driving portion 22 without tilting, that is, the anti-shake movable portion 21 is smoothly supported on the first piezoelectric actuator 221 and the second piezoelectric actuator 222. It should be understood that, in some examples of the present application, the height dimensions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 may not be equal, but it is preferable that the mounting surfaces formed by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are always flat surfaces, so that the anti-shake movable portion 21 can be smoothly supported on the mounting surfaces formed by the first piezoelectric actuator 221 and the second piezoelectric actuator 222.

More specifically, in the embodiment of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed relatively parallel in the X-axis direction or the Y-axis direction, that is, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are symmetrically disposed on opposite sides of the photosensitive assembly 30 with respect to the photosensitive assembly 30 with the X-axis or the Y-axis as a symmetry axis.

Further, in the embodiment of the present application, the carrier extension arm 212 extends outwards from the carrier main body 211, so that a receiving space is formed between the carrier extension arm 212 and the base 232, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are respectively disposed in the receiving space, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are fixed on the base 232 and are frictionally coupled to the friction plate 213 disposed on the lower surface of the carrier extension arm 212 in the height direction.

In an embodiment of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are implemented as the same piezoelectric actuator. Specifically, in the embodiment of the application, the piezoelectric actuator is a traveling wave type piezoelectric actuator, and the traveling wave type piezoelectric actuator has nano-scale step precision, so that the requirement of a more extreme optical system can be met. In addition, the thrust of the piezoelectric actuator is 10 times greater than that of a common VCM Motor (Voice coil Motor), and compared with the common VCM Motor, the piezoelectric actuator does not need to use parts such as a coil magnet, thereby avoiding electromagnetic interference and reducing reliability risks. The movement resolution of the piezoelectric actuator used in the application is 1nm, and the high-precision requirement of super-division of 0.5um can be achieved. The piezoelectric actuator is of a cuboid structure, namely, on an XOY plane, the section of the piezoelectric actuator is of a rectangular structure, and the piezoelectric actuator comprises two long sides along the length direction and two short sides along the width direction. Due to the structure of the piezoelectric actuators, the piezoelectric actuators are disposed relatively parallel to each other on both sides of the photosensitive member 30, that is, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed relatively parallel to each other on the anti-shake fixing portion 23 with the X-axis or the Y-axis as the symmetry axis. By this arrangement, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 can be kept in a better consistency, so that the photosensitive assembly 30 can be kept moving smoothly when being driven.

As shown in fig. 9, the piezoelectric actuator includes a piezoelectric ceramic plate 223 and a friction driving part 224, and after the piezoelectric actuator is powered, the piezoelectric ceramic plate 223 of the piezoelectric actuator generates two types of surface type changes, so as to drive the friction driving part 224 to generate unidirectional yaw reciprocating motion along the X-axis direction and/or the Y-axis direction, and further drive the friction plate 213 to move due to the friction contact between the friction driving part 224 and the friction plate 213.

Specifically, when the piezoelectric actuator is excited by a power source, the piezoelectric ceramic plate 223 generates a waveform motion along the length direction thereof, and the friction part is driven by the piezoelectric ceramic plate to perform a deflection motion along the length direction thereof, so as to drive the friction plate 213 to move along the length direction of the piezoelectric actuator; when the piezoelectric actuator is excited by another power source, the piezoelectric ceramic plate 223 generates a serpentine motion along the width direction, and the friction part is driven to perform a deflection motion along the width direction, so as to drive the friction plate 213 to move along the width direction of the piezoelectric actuator.

In an example of the present application, the piezoelectric actuator may realize a surface shape change in a length direction or a width direction thereof, respectively, that is, the piezoelectric actuator may select a surface shape change in a length direction or a width direction thereof. When the piezoelectric actuator is arranged along the X-axis direction, the length direction of the piezoelectric actuator is along the X-axis direction, and the width direction of the piezoelectric actuator is along the Y-axis direction; when the piezoelectric actuator is arranged along the Y-axis direction, the length direction is along the Y-axis direction, and the width direction is along the X-axis direction. Compared with the prior piezoelectric motor which can only realize one-direction driving, the piezoelectric actuator can generate different waveforms to move along X, Y directions, and can also realize Z-axis rotation by utilizing the cooperation of the first piezoelectric actuator 221 and the second piezoelectric actuator 222. In addition, the height of the piezoelectric actuator is 0.7 mm-0.9 mm, and the piezoelectric actuator can be hidden in the anti-shake driving assembly 20 to reduce the height of the anti-shake driving assembly 20.

Therefore, only one anti-shake movable portion 21 is required to move in the XOY plane under the driving of the piezoelectric actuator, so as to drive the photosensitive assembly 30 to realize the translational anti-shake and/or rotational anti-shake function, and compared with the existing piezoelectric motor, the number of the anti-shake movable portions 21 is reduced, so that the structure of the camera module is simplified, and the height of the camera module is reduced.

Accordingly, the first piezoelectric actuator 221 includes a first piezoelectric ceramic plate 2211 and a first friction driving portion 2212. The first piezoelectric ceramic plate 2211 is composed of a very small piezoelectric ceramic, and the first piezoelectric ceramic plate 2211 is adapted to be deformed by a reverse piezoelectric effect of the first piezoelectric ceramic plate 2211 after the first piezoelectric ceramic plate 2211 is energized by a power source, so that the first friction driving portion 2212 on the first piezoelectric ceramic plate 2211 moves accordingly. In the present application, the first piezoelectric ceramic plate 2211 is fixedly disposed on the base 232, and the first friction driving part 2212 faces the friction plate 213 on the anti-shake movable part 21, and the first friction driving part 2212 maintains frictional contact with the friction plate 213, so that the first friction driving part 2212 can drive the friction plate 213 to move.

Specifically, in an example of the present application, the first friction driving part 2212 is positioned below the friction plate 213 and is in frictional contact with the friction plate 213. Preferably, in the initial state, the first friction driving part 2212 is positioned at a middle position of the friction plate 213, and the friction plate 213 may be translated in the X-axis direction and the Y-axis direction and/or rotationally moved around the Z-axis direction by the anti-shake driving part 22. It should be understood that, in other examples of the present application, the first friction driving portion 2212 may be located at other positions of the friction plate 213, for example, at an end of the friction plate 213 in the initial state, which is not limited to the present application. Further, it is more preferable that the area of the friction plate 213 is equal to or larger than the driving stroke of the first piezoelectric actuator 221.

Accordingly, the second piezoelectric actuator 222 includes a second piezoelectric ceramic plate 2221 and a second friction driving part 2222. The second piezoelectric ceramic plate 2221 is composed of a very small piezoelectric ceramic, and the second piezoelectric ceramic plate 2221 is adapted to be deformed by the inverse piezoelectric effect of the second piezoelectric ceramic plate 2221 after the second piezoelectric ceramic plate 2221 is energized by the power source, so that the second friction driving part 2222 on the second piezoelectric ceramic plate 2221 moves accordingly. In the present application, the second piezoelectric ceramic plate 2221 is fixedly disposed on the base 232 with the second friction driving part 2222 facing the friction plate 213 on the anti-shake movable part 21, and the second friction driving part 2222 is held in frictional contact with the friction plate 213 so that the second friction driving part 2222 can drive the friction plate 213 to move.

Specifically, in an example of the present application, the second friction driving part 2222 is located below the friction plate 213 and is in frictional contact with the friction plate 213. Preferably, in the initial state, the second friction driving part 2222 is located at a middle position of the friction plate 213, and the friction plate 213 may translate in the X-axis direction and the Y-axis direction and/or move rotationally around the Z-axis direction under the driving of the anti-shake driving part 22. Of course, in other examples of the present application, the second friction driving part 2222 may be located at other positions of the friction plate 213 in the initial state, for example, at the end of the friction plate 213, which is not limited to the present application. More preferably, the area of the friction plate 213 is equal to or larger than the driving stroke of the first piezoelectric actuator 221.

Further, in a specific example of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed relatively parallel in the X-axis direction, that is, the length direction of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is in the X-axis direction, and the width direction of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is in the Y-axis direction. Accordingly, in this specific example, the first piezoelectric actuator 221 deforms in the longitudinal direction, the second piezoelectric actuator 222 deforms in the longitudinal direction, and the anti-shake movable portion 21 moves in the X-axis direction under the common drive of the first piezoelectric actuator 221 and the second piezoelectric actuator 222. Of course, in this specific example, the first piezoelectric actuator 221 deforms in the width direction, the second piezoelectric actuator 222 deforms in the width direction, and the anti-shake movable portion 21 moves in the Y-axis direction under the common drive of the first and second piezoelectric actuators 221 and 222.

In this specific example, the first piezoelectric actuator 221 deforms in the longitudinal direction, the second piezoelectric actuator 222 deforms in the opposite direction (i.e., the +x direction and the-X direction), and the anti-shake movable portion 21 performs a rotational motion about the Z axis by driving the first piezoelectric actuator 221 and the second piezoelectric actuator 222. That is, in the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 can cooperate with each other to drive the anti-shake movable portion 21 to translate in the X-axis direction and the Y-axis direction and/or rotate around the Z-axis direction, so as to achieve translational anti-shake and/or rotational anti-shake of the photosensitive assembly 30.

It should be understood that, since the first piezoelectric actuator 221 and the second piezoelectric actuator 222 may deform both in the longitudinal direction and in the width direction, only one of the anti-shake movable portions 21 may be driven by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to perform translational anti-shake of the XOY plane and rotational anti-shake about the Z axis direction.

Specifically, in an example of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 deform in the longitudinal direction and then deform in the width direction, and the anti-shake movable portion 21 moves in the X-axis direction and then moves in the Y-axis direction under the driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222, in such a manner that the anti-shake movable portion 21 can move in the plane in which XOY is located. In particular, in the embodiment of the present application, although the first piezoelectric actuator 221 and the second piezoelectric actuator 222 can generate a deformation in the width or length direction to provide driving force in two directions, the driving force provided by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is limited to the length direction and the width direction, that is, limited to the X-axis direction and the Y-axis direction, and thus, when the photosensitive assembly 30 needs to be driven to travel in a certain oblique direction for optical anti-shake, it must first move in the X-axis direction and then move in the Y-axis direction (of course, it may also first move in the Y-axis direction and then move in the X-axis direction) and cannot directly move in the oblique direction, which is an important difference from the conventional VCM motor for anti-shake.

Further, the first piezoelectric actuator 221 generates deformation in a first direction (for example, a positive direction of the X-axis direction), the second piezoelectric actuator 222 generates deformation in a second direction (for example, a negative direction of the X-axis direction), that is, the first friction driving part 2212 generates driving force in the positive direction, and the second friction driving part 2222 generates driving force in the negative direction, so that the anti-shake movable part 21 and the photosensitive member 30 are driven by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to perform rotational movement about the Z-axis direction.

In another example of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 first deform in a width direction and then deform in a length direction, and the anti-shake movable portion 21 is driven by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move in the Y axis direction and then move in the X axis direction, so that the anti-shake movable portion 21 can move in a plane in which XOY is located. The first piezoelectric actuator 221 deforms in a first direction along the X-axis direction (for example, a positive direction along the X-axis direction), the second piezoelectric actuator 222 deforms in a second direction along the X-axis direction (for example, a negative direction along the X-axis direction), that is, the first friction driving part 2212 generates a driving force along the positive direction along the X-axis direction, and the second friction driving part 2222 generates a driving force along the negative direction along the X-axis direction, so that the anti-shake movable part 21 and the photosensitive assembly 30 perform a rotational motion about the Z-axis direction in the driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222.

That is, in the embodiment of the present application, the first piezoelectric actuator 221 is adapted to deform in the direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive member 30 to move in the direction set by the X-axis, and the second piezoelectric actuator 222 is adapted to deform in the direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive member 30 to move in the direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive member 30 by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move in the direction set by the X-axis. Further, the first piezoelectric actuator 221 is adapted to deform in the direction set by the Y axis to actuate the anti-shake movable portion 21 and the photosensitive member 30 to move in the direction set by the Y axis, and the second piezoelectric actuator 222 is adapted to deform in the direction set by the Y axis to actuate the anti-shake movable portion 21 and the photosensitive member 30 to move in the direction set by the Y axis to actuate the anti-shake movable portion 21 and the photosensitive member 30 by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move in the direction set by the Y axis. And, the first piezoelectric actuator 221 is adapted to be deformed in a first direction set along the X axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move along the first direction set along the X axis, and the second piezoelectric actuator 222 is adapted to be deformed in a second direction set along the X axis opposite to the first direction to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move along a second direction set along the X axis to actuate the photosensitive assembly 30 to rotate about the Z axis in the XOY plane by the first piezoelectric actuator 221 and the second piezoelectric actuator 222. Further, the first piezoelectric actuator 221 is adapted to be deformed in a first direction set along the Y axis to actuate the anti-shake movable portion 21 and the photosensitive member 30 to move along the first direction set along the Y axis, and the second piezoelectric actuator 222 is adapted to be deformed in a second direction set along the Y axis opposite to the first direction to actuate the anti-shake movable portion 21 and the photosensitive member 30 to move along a second direction set along the Y axis to actuate the photosensitive member 30 to rotate about the Z axis in the XOY plane by the first piezoelectric actuator 221 and the second piezoelectric actuator 222.

In summary, in the present application, the anti-shake movable portion 21 may firstly implement the translational anti-shake of the XOY plane, and then implement the rotational anti-shake around the Z axis direction; the anti-shake device can also realize the rotation anti-shake around the Z-axis direction and then realize the translation anti-shake of the XOY plane.

Further, in the embodiment of the present application, the anti-shake driving part 22 is disposed below the anti-shake movable part 21 in the height direction, specifically, the first piezoelectric ceramic plate 2211 is disposed at the anti-shake fixing part 23, the first friction driving part 2212 is frictionally coupled to the anti-shake movable part 21, the second piezoelectric ceramic plate 2221 is disposed at the anti-shake fixing part 23, and the second friction driving part 2222 is frictionally coupled to the anti-shake movable part 21. The pre-compression device 24 is grippingly fixed between the first piezoelectric ceramic plate 2211 and the base 232 and between the second piezoelectric ceramic plate 2221 and the base 232 such that the first friction driving part 2212 and the second friction driving part 2222 remain in frictional contact with the friction plate 213 of the carrier extension arm 212 by the pre-compression provided by the pre-compression device 24.

In the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 may form a self-locking structure, that is, after stopping applying the voltage, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 maintain the anti-shake movable portion 21 at the current position under the action of the pre-pressing device 24, without causing a position change along with external shake, so that the optical system of the image capturing module is kept unchanged, and further, the influence caused by the imaging effect is avoided. The addition of a self-locking device in the camera module is omitted, and the size of the camera module is relatively reduced. Because of the self-locking structure formed by the first piezoelectric actuator 221 and the second piezoelectric actuator 222, there is no need to keep the piezoelectric actuators activated to maintain their positions.

As shown in fig. 11 and 14, in the anti-shake driving assembly 20, the pre-pressing means 24 provides pre-pressing force between the anti-shake driving portion 22 and the anti-shake movable portion 21 so that the friction driving portion 224 of the anti-shake driving portion 22 can be frictionally coupled to the anti-shake movable portion 21 to drive the anti-shake movable portion 21 to move in the driving direction by friction.

Specifically, as shown in fig. 11 and 14, the pre-compression device 24 includes a first elastic element 241 and a second elastic element 242. The first elastic element 241 is disposed between the first piezoelectric ceramic plate 2211 of the first piezoelectric actuator 221 and the base 232, so that the first piezoelectric actuator 221 is disposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23 in a clamped manner by the elastic force of the first elastic element 241, that is, such that the first friction driving portion 2212 of the first piezoelectric actuator 221 abuts against the carrier extension arm 212 of the anti-shake movable portion 21, in such a manner that the first piezoelectric actuator 221 is frictionally coupled to the anti-shake movable portion 21. The second elastic element 242 is disposed between the second piezoelectric ceramic plate 2221 of the second piezoelectric actuator 222 and the base 232, so that the second piezoelectric actuator 222 is interposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23 by the elastic force of the second elastic element 242, that is, such that the second friction driving portion 2222 of the second piezoelectric actuator 222 abuts against the carrier extension arm 212 of the anti-shake movable portion 21, in such a manner that the second piezoelectric actuator 222 is frictionally coupled to the anti-shake movable portion 21.

In one specific example of the application, the pre-stressing means 24 is implemented as an adhesive with elasticity, i.e. the first elastic element 241 and the second elastic element 242 are implemented as a glue with elasticity after curing. Accordingly, during the mounting process, an adhesive having a thickness of 10um to 50um may be applied between the inner bottom surface of the substrate 232 and the first and second piezoelectric ceramic plates 2211 and 2221, respectively, to form the first and second elastic elements 241 and 242 after the adhesive is cured and molded. That is, the first elastic member 241 and the second elastic member 242 of the pre-compression device 24 can also allow the anti-shake driving part 22 to be fixed to the bottom surface of the inner sidewall of the base 232 while providing pre-compression.

Preferably, the pre-pressing means 24 has a relatively high flatness, i.e., when the adhesive is applied to form the first and second elastic members 241 and 242, the applied adhesive is ensured to have a relatively high flatness and uniformity as much as possible, so that the anti-shake driving part 22 can be smoothly fixed to the substrate 232, thereby improving the stability of the anti-shake driving part 22. Of course, in other examples of the application, the first elastic element 241 and the second elastic element 242 of the pre-stressing means 24 may also be embodied as rubber with elastic properties itself, or as springs with elastic properties due to their shape; it may also be an elastic material with adhesive properties, such as an adhesive (silicone, UV glue, thermosetting glue, UV thermosetting glue, etc.).

It should be understood that in this embodiment, the pre-pressing means 24 is provided to the base 232, the pre-pressing means 24 generates a pre-pressing force in the Z-axis direction, which is capable of holding the friction driving portion 224 of the anti-shake driving portion 22 in frictional contact with the friction plate 213 of the anti-shake movable portion 21, and also capable of holding the guide means 25 sandwiched between the upper cover 231 and the carrier extension arm 212 of the anti-shake movable portion 21, wherein the pre-pressing force direction is perpendicular to the driving force direction.

As shown in fig. 12 to 14, in order to improve the stability of the movement of the camera module during the optical anti-shake process and improve the imaging quality, a guide device 25 is provided between the upper cover 231 and the anti-shake movable part 21, so that the anti-shake movable part 21 is always supported during the movement of the anti-shake movable part 21 relative to the anti-shake fixing part 23 during the optical anti-shake process, so that the anti-shake movable part 21 can slide smoothly. That is, in the embodiment of the present application, the anti-shake driving assembly 20 further includes a guide means 25 provided between the upper surface of the carrier extension arm 212 and the upper cover 231, the guide means 25 being adapted to guide the anti-shake movable portion 21 to move in the XOY plane set by the X axis and the Y axis.

In a specific example of the present application, the guide device 25 includes a groove 241 provided in the anti-shake movable portion 21 and a ball 242 provided in the groove 241, wherein, as described above, the guide device 25 can always maintain contact with the anti-shake movable portion 21 and guide movement of the anti-shake movable portion 21 during movement of the anti-shake movable portion 21 relative to the anti-shake fixed portion 23 by the pre-compression device 24, so that the anti-shake movable portion 21 can smoothly move. It should be understood that since the balls 242 are disposed in the grooves 241, the movement track of the balls 242 is limited to the grooves 241, and the balls 242 may move in the grooves 241 along a plane perpendicular to the optical axis to provide a guide for the movement of the anti-shake movable portion 21.

Specifically, in this specific example, the groove 241 is concavely formed at the carrier extension arm 212 of the anti-shake movable portion 21, and the opening of the groove 241 is directed toward the upper cover 231 of the anti-shake fixing portion 23. That is, the portion of the upper cover 231 facing the ball 242 has a planar structure, the portion of the carrier extension arm 212 facing the ball 242 has a groove 241 structure, i.e. the ball 242 is received in the groove 241 of the carrier extension arm 212, the ball 242 can only move in the groove 241, and the groove 241 limits the movement of the ball 242 to prevent the ball 242 from being separated from the movement range thereof. In the present application, the ball 242 is made of ceramic. In particular, in this particular example, the depth of the groove 241 is less than or equal to the diameter of the ball 242 such that at least a portion of the ball 242 may be exposed to the top surface of the groove 241 such that the ball 242 is capable of making frictional contact with the carrier extension arm 212 of the anti-shake movable portion 21.

In the embodiment of the present application, the number of the guiding devices 25 is at least 3, that is, the anti-shake driving assembly 20 includes at least 3 guiding devices 25. Preferably, in the embodiment of the present application, the number of the guide devices 25 is 4, which may be respectively located at four corners of the anti-shake driving assembly 20 to provide smooth support for the anti-shake movable portion 21, and may make full use of the free corner space of the anti-shake driving assembly 20, so that the structure of the anti-shake driving assembly 20 is more compact.

It should be noted that, in other examples of the present application, the guiding device 25 may also be a slider-chute structure, which is not limited in this respect. In another example of the present application, a track having a direction may be provided between the upper cover 231 and the upper surface of the anti-shake movable section 21, and the balls 242 may be provided in the track, and the movement locus of the balls 242 may be limited to the track, so that the track may function as a guide during the movement of the photosensitive member 30. Further, since the balls 242 can replace sliding friction by rolling friction, friction force between the anti-shake movable portion 21 and the upper cover 231 can be further reduced.

For example, in a specific example of the present application, a track along the x-axis direction may be provided on the bottom surface of the upper cover 231, and a track along the y-axis direction may be provided on the upper surface of the carrier extension arm 212 (the bottom surface and the upper surface refer to the direction from the photosensitive chip 32 to the optical lens 10 along the optical axis direction), where the track along the x-axis and the track along the y-axis are oppositely disposed to form a cross-shaped accommodating cavity, and the ball 242 is accommodated therein. Preferably, the number of the balls 242 and the accommodating chambers is 4 so that the anti-shake movable portion 21 can be kept stable. In performing optical anti-shake, a larger OIS stroke may be provided for photosensitive assembly 30 by ball 242 and track as a guide mechanism. Of course, in other embodiments of the present application, both the track along the x-axis and the track along the y-axis may be provided on the upper surface of the carrier extension arm 212, and two same-side tracks may be provided on the same side of the carrier extension arm 212. In contrast, a track different from the upper surface of the carrier extension arm 212 is provided on the lower surface of the upper cover 231, that is, a y-axis track is provided on the upper cover 231 at a position opposite to the x-axis track on the carrier extension arm 212, and an x-axis track is provided on the upper cover 231 at a position opposite to the y-axis track of the carrier extension arm 212, so as to avoid interference.

It should be noted that, the guiding device 25 is disposed between the anti-shake movable portion 21 and the upper cover 231, the anti-shake driving portion 22 is disposed between the anti-shake movable portion 21 and the base 232, the guiding device 25 is disposed above the anti-shake movable portion 21, and the anti-shake driving portion 22 is disposed below the anti-shake movable portion 21, that is, the anti-shake movable portion 21 is clamped in the accommodating space formed by the upper cover 231 and the base 232 by the guiding device 25 and the anti-shake driving portion 22.

It should be noted that, in the embodiment of the present application, the ball 242 of the guide 25 is sandwiched between the anti-shake movable portion 21 and the upper cover 231 of the anti-shake fixing portion 23, and therefore, the ball 242 can also provide a pre-pressing force that causes the anti-shake movable portion 21 to be downward so that the anti-shake movable portion 21 is frictionally coupled to the anti-shake driving portion 22. That is, in the embodiment of the present application, the balls 242 of the guide means 25 also substantially play a role of the pre-pressing means 24. That is, the balls 242 may serve as the guide means 25 for supporting the anti-shake movable portion 21, or may serve as the pre-compression means 24 for providing the required pre-compression force to the anti-shake driving portion 22.

Specifically, in the embodiment of the present application, the first and second piezoelectric ceramic plates 2211 and 2221 are fixed to the inner bottom surface of the base 232 in relatively parallel, respectively, and the first and second friction driving parts 2212 and 2222 are fixed to the first and second piezoelectric ceramic plates 2211 and 2221 and face the anti-shake movable part 21, and are held in frictional contact with the friction plates 213 of the anti-shake movable part 21. That is, in the height direction, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are respectively disposed below the anti-shake movable portion 21, and the ball 242 is disposed between the anti-shake movable portion 21 and the upper cover 231, that is, the ball 242 is disposed above the anti-shake movable portion 21. That is, the setting module is composed of the upper cover 231, the ball 242, the anti-shake movable portion 21, the first and second piezoelectric actuators 221 and 222, and the base 232 in this order from top to bottom in the Z-axis direction, the anti-shake movable portion 21 is sandwiched between the ball 242 and the first and second piezoelectric actuators 221 and 222, the ball 242 may generate a downward pre-pressing force by which the first and second piezoelectric actuators 221 and 222 can be held in frictional contact with the friction plate 213 of the anti-shake movable portion 21.

In the present application, the first friction driving part 2212 and the second friction driving part 2222 are respectively in frictional contact with two opposite sides of the carrier extension arm 212, the balls 242 are respectively in frictional contact with four corners of the upper cover 231 and the carrier extension arm 212, the friction between the friction driving part and the friction plate 213 is active friction, the friction between the balls 242 and the upper cover 231 is passive friction, and the friction force between the first friction driving part 2212, the second friction driving part 2222 and the friction plate 213 of the carrier extension arm 212 is greater than the friction force between the balls 242 and the upper cover 231. That is, a large friction force is generated between the first friction driving portion 2212, the second friction driving portion 2222 and the friction plate 213 of the carrier extension arm 212 under the driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222, so as to drive the anti-shake movable portion 21 to move. Under the movement of the anti-shake movable portion 21, a small friction force is generated between the ball 242 and the upper cover 231, so as to avoid obstructing the movement of the anti-shake movable portion 21, thereby affecting the anti-shake effect.

Further, as shown in fig. 5 to 15, in the embodiment of the present application, the driving substrate 26 is disposed between the anti-shake driving portion 22 and the base 232. Specifically, as shown in fig. 5, a set of positioning points 2321 is disposed on the bottom surface of the base 232, and the driving substrate 26 is fixed on the base 232 through the positioning points 2321 of the base 232.

The driving substrate 26 includes a connection end 263 and at least one conductive end. Preferably, the conductive terminals have a split structure and the number of conductive terminals is 2, i.e., the at least one conductive terminal includes a first conductive terminal 261 and a second conductive terminal 262. The first piezoelectric ceramic plate 2211 of the first piezoelectric actuator 221 and the second piezoelectric ceramic plate 2221 of the second piezoelectric actuator 222 are respectively disposed and electrically connected to the first conductive end 261 and the second conductive end 262 of the driving substrate 26, so that the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are electrically connected through the driving substrate 26. That is, the first conductive end 261 is disposed on the same side as the first piezoelectric actuator 221, and the second conductive end 262 is disposed on the same side as the second piezoelectric actuator 222. The connection end 263 is disposed on a side of the anti-shake driving assembly 20 where the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are not disposed, for example, the connection end 263 is disposed between the first conductive end 261 and the second conductive end 262, and the connection end 263 is electrically connected to the first conductive end 261 and the second conductive end 262, and the connection end 263 is used to electrically connect the first conductive end 261 and the second conductive end 262 with the electronic device motherboard. In the present application, the driving substrate 26 and the circuit board 31 are respectively and fixedly connected with the motherboard of the electronic device, and the circuit is conducted, so as to reduce the resistance generated by the movement of the driving substrate 26 to the circuit board 31.

Of course, in other examples of the present application, the driving substrate 26 may be disposed between the base 232 and the pre-compression device 24, and the driving substrate 26 may be disposed between the pre-compression device 24 and the anti-shake driving portion 22. That is, the driving substrate 26 may be directly disposed on the base 232, or may be indirectly disposed on the base 232 through the pre-pressing device 24.

In particular, in the embodiment of the present application, the substrate 232 has a slot formed on a sidewall thereof, through which the connection terminal 263 protrudes, and is electrically connected to the motherboard of the electronic device. Preferably, the circuit board 31 and the connection end 263 extend from the same side of the anti-shake driving assembly 20, that is, the slot of the base 232 and the opening of the anti-shake movable portion 21 are disposed on the same side, so that the circuit board 31 and the connection end 263 are electrically connected to the motherboard of the electronic device from the same side of the anti-shake driving assembly 20. The anti-shake movable portion 21 is disposed above the base 232, the circuit board 31 is disposed above the driving substrate 26, and a certain gap is formed between the circuit board 31 and the connection end 263 of the driving substrate 26 along the height direction, so that the circuit board 31 can not contact with the driving substrate 26 during movement, thereby affecting the optical anti-shake effect. The gap ranges from 0.1mm to 0.15mm.

Of course, in other examples of the present application, the driving substrate 26 and the circuit board 31 may also be electrically connected to the motherboard of the electronic device by extending from different sides of the anti-shake driving assembly 20, i.e. the openings of the side walls of the base 232 and the anti-shake movable portion 21 may be disposed on different sides, such as opposite sides or adjacent sides, so that the movement of the circuit board 31 is not affected.

In another example of the present application, the positions of the anti-shake driving unit 22 and the guide device 25 may be exchanged, that is, the anti-shake driving unit 22 is disposed between the upper cover 231 and the anti-shake movable unit 21, and the guide device 25 is disposed between the base 232 and the anti-shake movable unit 21. The guiding device 25 is disposed between the base 232 and the anti-shake movable portion 21, the guiding device 25 is disposed below the carrier extension arm 212, a groove 241 is disposed on the carrier extension arm 212, the opening of the groove 241 faces the base 232, the ball 242 is disposed in the groove 241, and the anti-shake movable portion 21 is supported on the base 232 by the ball 242. The carrier extension arm 212 is sandwiched between the balls 242 and the friction driving part, so that the anti-shake movable part 21 can realize XOY plane anti-shake and anti-shake around the Z axis under the driving of the anti-shake driving part 22. Further, the driving substrate 26 is disposed between the upper cover 231 and the piezoelectric ceramic plate, and is used for conducting the anti-shake driving portion 22 with a circuit of the electronic device motherboard.

Fig. 15 illustrates a modified embodiment of the anti-shake driving assembly 20 according to the embodiment of the application, wherein, as shown in fig. 15, unlike the above-described embodiment, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 may also be disposed relatively parallel in the Y-axis direction, that is, the length directions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are in the Y-axis direction, that is, the width directions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are in the Y-axis direction.

In an example of the present application, the first piezoelectric actuator 221 deforms in the longitudinal direction, the second piezoelectric actuator 222 deforms in the longitudinal direction, and the anti-shake movable portion 21 moves in the Y-axis direction under the common driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222; in another example of the present application, the first piezoelectric actuator 221 deforms in the width direction, the second piezoelectric actuator 222 deforms in the width direction, and the anti-shake movable portion 21 moves in the X-axis direction under the common drive of the first piezoelectric actuator 221 and the second piezoelectric actuator 222; in another example of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 first generate deformation along the length direction and then generate deformation along the width direction, and the anti-shake movable portion 21 is driven by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move along the Y axis direction and then move along the X axis direction, that is, the anti-shake movable portion 21 can move in the plane where XOY is located; in another example of the present application, the first piezoelectric actuator 221 is deformed in the longitudinal direction, the second piezoelectric actuator 222 is deformed in the opposite direction (i.e., the +y direction and the-Y direction), and the anti-shake movable portion 21 is rotated around the Z axis by driving the first piezoelectric actuator 221 and the second piezoelectric actuator 222. That is, in the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 can cooperate with each other to drive the anti-shake movable portion 21 to translate in the X-axis direction and the Y-axis direction and/or rotate around the Z-axis direction, so as to achieve translational anti-shake and/or rotational anti-shake of the photosensitive assembly 30.

In summary, the image capturing module according to the embodiment of the present application is illustrated, wherein the image capturing module uses a novel piezoelectric actuator as a driving element, so as to not only provide a sufficiently large driving force, but also provide driving performance with higher precision and longer stroke, so as to meet the requirement of optical performance adjustment of the image capturing module, for example, the requirement of optical anti-shake.

Schematic anti-shake drive assembly

According to another aspect of the present application, there is also provided an anti-shake driving assembly including: an anti-shake fixing portion 23, an anti-shake movable portion 21, and an anti-shake driving portion 22, wherein the anti-shake movable portion 21 is adapted to mount the photosensitive assembly 30 thereon, and the anti-shake driving portion 22 includes a first piezoelectric actuator 221 and a second piezoelectric actuator 222 frictionally coupled to the anti-shake movable portion 21. In particular, the first and second piezoelectric actuators 221 and 222 are disposed parallel to each other on opposite sides of the photosensitive member 30, and the first and second piezoelectric actuators 221 and 222 are adapted to actuate the anti-shake movable portion 21 and the photosensitive member 30 to move in an XOY plane set in the X and Y axes or to rotate in the XOY plane about a Z axis perpendicular to the X and Y axes.

In the anti-shake driving assembly 20 according to the present application, in one example, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are symmetrically arranged on opposite sides of the photosensitive assembly 30 with respect to the photosensitive assembly 30 with the X-axis or the Y-axis as a symmetry axis.

In the anti-shake driving assembly 20 according to the present application, in one example, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are traveling wave type piezoelectric actuators, wherein the first piezoelectric actuator 221 includes a first piezoelectric ceramic plate 2211 and a first friction driving portion 2212 protruding from the first piezoelectric ceramic plate 2211, and the first piezoelectric ceramic plate 2211 is adapted to be deformed after being electrically driven to drive the first friction driving portion 2212 to perform unidirectional yaw reciprocation; the second piezoelectric actuator 222 includes a second piezoelectric ceramic plate 2221 and a second friction driving portion 2222 protruding from the second piezoelectric ceramic plate 2221, where the second piezoelectric ceramic plate 2221 is adapted to deform after being electrically driven to drive the second friction driving portion 2222 to perform unidirectional yaw reciprocation.

In the anti-shake driving assembly 20 according to the present application, in one example, the first piezoelectric actuator 221 is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move in the direction set by the X-axis, and the second piezoelectric actuator 222 is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move in the direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 by the first piezoelectric actuator 221 and the second piezoelectric actuator 222;

Wherein the first piezoelectric actuator 221 is adapted to deform in a direction set by the Y-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move in the direction set by the Y-axis, and the second piezoelectric actuator 222 is adapted to deform in a direction set by the Y-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move in the direction set by the Y-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move in the direction set by the Y-axis;

Wherein the first piezoelectric actuator 221 is adapted to deform in a first direction set along the X-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move along the first direction set along the X-axis, and the second piezoelectric actuator 222 is adapted to deform in a second direction set along the X-axis opposite to the first direction to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move along a second direction set along the X-axis to actuate the photosensitive assembly 30 to rotate about the Z-axis in the XOY plane by the first piezoelectric actuator 221 and the second piezoelectric actuator 222;

Wherein the first piezoelectric actuator 221 is adapted to be deformed in a first direction set along the Y axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move along the first direction set along the Y axis, and the second piezoelectric actuator 222 is adapted to be deformed in a second direction set along the Y axis opposite to the first direction to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move along a second direction set along the Y axis to actuate the photosensitive assembly 30 to rotate about the Z axis in the XOY plane by the first piezoelectric actuator 221 and the second piezoelectric actuator 222.

In the anti-shake driving assembly 20 according to the present application, in one example, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 have a rectangular structure having two opposite long sides along the length direction and two opposite short sides along the width direction.

In the anti-shake driving assembly 20 according to the present application, in one example, the length direction of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is the X-axis direction, and the short side direction of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is the Y-axis direction.

In the anti-shake driving assembly 20 according to the present application, in one example, the length direction of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is the Y-axis direction, and the short side direction of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is the X-axis direction.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake movable portion 21 is smoothly supported on the first friction driving portion 2212 of the first piezoelectric actuator 221 and the second friction driving portion 2222 of the second piezoelectric actuator 222.

In the anti-shake driving assembly 20 according to the present application, in one example, the first piezoelectric ceramic plate 2211 is disposed at the anti-shake fixing portion 23, the first friction driving portion 2212 is frictionally coupled to the anti-shake movable portion 21, the second piezoelectric ceramic plate 2221 is disposed at the anti-shake fixing portion 23, and the second friction driving portion 2222 is frictionally coupled to the anti-shake movable portion 21.

In the anti-shake driving assembly 20 according to the present application, in one example, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 have the same height dimension

In the anti-shake driving assembly 20 according to the present application, in one example, the height dimension of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is 0.7mm to 0.9mm.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake fixing portion 23 has a receiving cavity, and the anti-shake movable portion 21 is suspended in the receiving cavity of the anti-shake fixing portion 23.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake fixing portion 23 includes a base 232 and an upper cover 231 engaged with the base 232, and the receiving cavity is formed between the upper cover 231 and the base 232.

In the anti-shake driving assembly 20 according to the present application, in one example, there is a gap between the anti-shake movable portion 21 and the base 232, and there is a gap between the anti-shake movable portion 21 and the upper cover 231, in such a way that the anti-shake movable portion 21 is suspended in the receiving cavity of the anti-shake fixing portion 23.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake movable portion 21 includes a carrier body 211 and a carrier extension arm 212 extending outwardly from the carrier body 211, wherein a first friction driving portion 2212 of the first piezoelectric actuator 221 and a second friction driving portion 2222 of the second piezoelectric actuator 222 are frictionally coupled to a lower surface of the carrier extension arm 212.

In the anti-shake driving assembly 20 according to the present application, in one example, the carrier body 211 has a seating groove lower than the carrier extension arm 212, wherein the photosensitive assembly 30 is adapted to be mounted in the seating groove.

In the anti-shake driving assembly 20 according to the present application, in one example, the carrier extension arm 212 and the base 232 have a receiving space therebetween, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are received in the receiving space.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake movable portion 21 further includes a friction plate 213 formed at a lower surface of the carrier extension arm 212, and the first friction driving portion 2212 of the first piezoelectric actuator 221 and the second friction driving portion 2222 of the second piezoelectric actuator 222 are frictionally coupled to the friction plate 213.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake driving assembly 20 further includes a driving substrate 26 disposed between the anti-shake movable portion 21 and the base 232, the driving substrate 26 includes at least one conductive terminal and a connection terminal 263 extending outward from the conductive terminal, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are electrically connected to the at least one electrical connection terminal 263.

In the anti-shake driving assembly 20 according to the present application, in one example, the at least one conductive terminal includes a first conductive terminal 261 and a second conductive terminal 262, the first piezoelectric actuator 221 is electrically connected to the first conductive terminal 261, and the second piezoelectric actuator 222 is electrically connected to the second conductive terminal 262.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake movable portion 21 has a slot formed at a side wall of the carrier body 211, the slot being configured to allow the wiring board 31 of the photosensitive assembly 30 to protrude from the slot to the seating groove.

In the anti-shake driving assembly 20 according to the present application, in one example, the base 232 has an opening formed at a sidewall thereof, wherein the connection end 263 extends outwardly from the at least one conductive end and passes through the opening.

In the anti-shake driving assembly 20 according to the present application, in one example, the opening and the slot have a height difference.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake driving assembly 20 further includes a pre-compression device 24 disposed between the anti-shake driving part 22 and the anti-shake fixing part 23 to force the anti-shake driving part 22 to be frictionally coupled to the anti-shake movable part 21 by pre-compression provided by the pre-compression device 24.

In the anti-shake driving assembly 20 according to the present application, in one example, the pre-compression device 24 includes a first elastic element 241 disposed between the base 232 and the first piezoelectric ceramic plate 2211 of the first piezoelectric actuator 221 to generate the pre-compression force by the elastic force of the first elastic element 241 itself to force the first friction driving part 2212 of the first piezoelectric actuator 221 to abut against the friction plate 213 in such a manner that the first friction driving part 2212 of the first piezoelectric actuator 221 is frictionally coupled to the friction plate 213; the pre-pressing device 24 further includes a second elastic element 242 disposed between the substrate 232 and the second piezoelectric ceramic plate 2221 of the second piezoelectric actuator 222, so that the pre-pressing force generated by the elastic force of the second elastic element 242 itself forces the second friction driving part 2222 of the second piezoelectric actuator 222 to abut against the friction plate 213 in such a manner that the second friction driving part 2222 of the second piezoelectric actuator 222 is frictionally coupled to the friction plate 213.

In the anti-shake driving assembly 20 according to the present application, in one example, the thickness dimension of the first elastic member 241 and the second elastic member 242 is 10um to 50um.

In the anti-shake driving assembly 20 according to the present application, in one example, the anti-shake driving assembly 20 further includes a guide device 25 provided between the upper surface of the carrier extension arm 212 and the upper cover 231, the guide device 25 being adapted to guide the anti-shake movable portion 21 to move in the XOY plane set by the X axis and the Y axis.

In summary, the anti-shake driving assembly 20 according to the embodiment of the application is illustrated, which uses a special piezoelectric actuator as a driving element and only configures one anti-shake movable portion 21 to realize anti-shake of the image capturing module in the XOY plane.

Exemplary camera Module

As shown in fig. 21 to 36, an image capturing module according to an embodiment of the present application is illustrated, which includes a photosensitive member 30, an optical lens 10 held on a photosensitive path of the photosensitive member 30, and an anti-shake driving assembly 20 for driving the photosensitive member 30 to move to achieve optical performance adjustment of the image capturing module.

In the embodiment of the present application, the photosensitive member 30 is mounted in the anti-shake driving assembly 20, for example, as shown in fig. 21 to 36, the anti-shake driving assembly 20 has a mounting groove 2110 located in a middle area thereof, and the photosensitive member 30 is mounted in the anti-shake driving assembly 20 in such a manner as to be received in the mounting groove 2110, so that the anti-shake driving assembly 20 can carry the photosensitive member 30 to move along a predetermined direction when being driven, for example, to adjust the optical performance of the camera module, for example, to perform optical anti-shake. Also, the optical lens 10 is held on the photosensitive path of the photosensitive assembly 30, for example, the optical lens 10 is mounted on the anti-shake driving assembly 20 in such a manner as to be fixed to the top surface of the anti-shake driving assembly 20 in such a manner that the optical lens 10 is held on the photosensitive path of the photosensitive assembly 30, so that the photosensitive assembly 30 can receive light projected from the optical lens 10 for imaging.

More specifically, as shown in fig. 21 to 23, the optical lens 10 includes a lens barrel 11 and a lens group mounted in the lens barrel 11, wherein the lens group includes at least one optical lens 12, and the number of the at least one optical lens 12 is not limited.

It should be noted that, in some examples of this specific example, the lens driving portion 14 further includes a lens focusing portion, and the lens focusing portion is adapted to drive the optical lens 10 to translate in the Z-axis direction, so as to adjust the distance between the optical lens 10 and the photosensitive assembly 30, so as to implement the focusing function of the optical lens 10. Also, in some embodiments of this specific example, the lens driving part 14 may further include a lens anti-shake part adapted to drive the optical lens 10 to translate in X-axis and Y-axis directions and/or rotate around Z-axis directions to achieve translational anti-shake and/or rotational anti-shake of the optical lens 10; or the lens anti-shake section is adapted to drive the optical lens 10 to rotate in the X-axis direction and in the Y-axis direction to achieve tilt anti-shake of the optical lens 10. Note that the lens driving section 14 may include only the lens focusing section or the lens anti-shake section; the lens driving part 14 may also include both the lens focusing part and the lens anti-shake part, so that the lens driving part 14 may realize not only a lens focusing function but also a lens anti-shake function.

As shown in fig. 24, in the embodiment of the present application, the photosensitive assembly 30 includes a circuit board 31, a photosensitive chip 32, an electronic component 33, a base 34, and a filter element 35. The photosensitive chip 32 is disposed on the circuit board 31 and electrically connected to the circuit board 31, for example, the photosensitive chip 32 is mounted on the circuit board 31 and electrically connected to the circuit board 31, wherein the base 34 is disposed on the circuit board 31 and located at a peripheral side of the photosensitive chip 32, and the filter element 35 is held on a photosensitive path of the photosensitive chip 32 in such a manner as to be mounted on the base 34. The photosensitive chip 32 includes a photosensitive region and a non-photosensitive region surrounding the photosensitive region, wherein the photosensitive region is composed of a pixel array for receiving and sensing imaging light from the outside and converting optical signals into electrical signals.

In one example of the present application, the photosensitive chip 32 is mounted on the upper surface of the wiring board 31 by an adhesive, and is electrically connected to the wiring board 31 by wire bonding. Of course, in other examples of the present application, the photosensitive chip 32 may be disposed on the circuit board 31 and/or electrically connected to the circuit board 31 in other manners, for example, flip-chip attached to the lower surface of the circuit board 31, which is not limited to the present application. It should be appreciated that in an embodiment of the present application, the photosensitive path of the photosensitive chip 32 forms the photosensitive path of the photosensitive assembly 30.

In the embodiment of the present application, the filter element 35 is held on the photosensitive path of the photosensitive chip 32, for filtering the imaging light entering the photosensitive chip 32. In a specific example, the filter element 35 is mounted on the base 34 and corresponds to at least a photosensitive region of the photosensitive chip 32, in such a way that the filter element 35 is held on a photosensitive path of the photosensitive chip 32.

It is worth mentioning that in other examples of the application the filter element 35 can also be mounted on the base 34 in other ways, for example, a filter element holder is provided on the base 34 first, and the filter element 35 is mounted on the filter element holder, i.e. in this example the filter element 35 can be mounted indirectly on the base 34 via other supports. In other examples of the present application, the filter element 35 may be mounted at other positions of the variable-focus camera module, for example, the filter element 35 may be formed in the optical lens 10 (for example, as a filter film attached to a surface of a certain optical lens of the zoom lens group), which is not limited to the present application.

As shown in fig. 25 to 36, in the embodiment of the present application, the anti-shake driving assembly 20 includes an anti-shake movable portion 21, an anti-shake driving portion 22, an anti-shake fixing portion 23, a pre-pressing device 24, a guiding device 25 and a driving substrate 26, wherein the anti-shake movable portion 21 is adapted to mount the photosensitive assembly 30 thereon, the anti-shake movable portion 21 is movable relative to the anti-shake fixing portion 23, the anti-shake driving portion 22 is disposed between the anti-shake fixing portion 23 and the anti-shake movable portion 21, and the anti-shake driving portion 22 is frictionally coupled to the anti-shake movable portion 21, so as to drive the anti-shake movable portion 21 to move relative to the anti-shake fixing portion 23 through a friction driving force provided by the anti-shake driving portion 22, and in this way, the photosensitive assembly 30 is driven to move, thereby realizing adjustment of the optical performance of the camera module.

Accordingly, in the embodiment of the present application, the photosensitive member 30 may be mounted to the anti-shake movable portion 21 in a linkage manner, for example, in a specific example of the present application, the photosensitive member 30 is fixedly mounted to the anti-shake movable portion 21, so that when the anti-shake driving portion 22 drives the anti-shake movable portion 21, the photosensitive member 30 is also driven by the anti-shake movable portion 21. The anti-shake driving section 22 is provided between the anti-shake fixing section 23 and the anti-shake movable section 21, and for example, in a specific example of the present application, the anti-shake driving section 22 is provided between the anti-shake fixing section 23 and the movable section in such a manner as to connect the anti-shake movable section 21 and the anti-shake fixing section 23, respectively. The anti-shake driving part 22 is adapted to drive the photosensitive assembly 30 to translate in an X-axis direction (i.e., a direction set by an X-axis) and/or rotate about a Z-axis direction (i.e., a direction set by a Y-axis) to achieve translational and/or rotational anti-shake of the photosensitive assembly 30, that is, the anti-shake driving part 22 is adapted to actuate the anti-shake movable part 21 to move in an XOY plane set by an X-axis and a Y-axis or to rotate in the XOY plane about a Z-axis perpendicular to the X-axis and the Y-axis.

Specifically, in the embodiment of the present application, the anti-shake fixing portion 23 has a receiving cavity 230, wherein the anti-shake movable portion 21, the anti-shake driving portion 22, the guiding device 25, the pre-pressing device 24, and the driving substrate 26 are received in the receiving cavity 230 of the anti-shake fixing portion 23, that is, the anti-shake fixing portion 23 may receive the anti-shake movable portion 21, the anti-shake driving portion 22, the guiding device 25, the pre-pressing device 24, and the driving substrate 26 therein. More specifically, in the embodiment of the present application, the anti-shake movable portion 21 is suspended in the housing chamber 230 of the anti-shake fixing portion 23 to divide the housing chamber 230 into two parts (here, for convenience of description, two parts of the housing chamber 230 are defined as an upper part 2301 and a lower part 2302), wherein the pre-compression device 24, the driving substrate 26 and the anti-shake driving portion 22 are provided in one part of the housing chamber 230, and the pre-compression device 24 is provided in the other part of the housing chamber 230.

Also, in the embodiment of the present application, in one portion of the receiving chamber 230, the driving substrate 26 is electrically connected to the anti-shake driving part 22 for achieving the electrical conduction of the anti-shake driving assembly 20, and the pre-compression device 24 maintains the frictional coupling between the anti-shake driving part 22 and the anti-shake movable part 21 by the pre-compression generated by the pre-compression device. In the other portion of the receiving chamber 230, the guide means 25 serves to guide the movement of the anti-shake movable portion 21.

As shown in fig. 25 and 26, in the embodiment of the present application, the anti-shake movable portion 21 includes a carrier body 211, a carrier extension arm 212, and a friction plate 213. The carrier body 211 forms the seating groove 2110 for mounting the photosensitive assembly 30 therein, wherein the photosensitive assembly 30 is fixed in the seating groove 2110 so that the photosensitive assembly 30 can be moved by the chip anti-shake movable portion 21.

As shown in fig. 25 and 26, in an embodiment of the present application, the carrier extension arm 212 extends outwardly from the carrier body 211, e.g., the carrier extension arm 212 integrally extends outwardly from the carrier body 211. In particular, in the embodiment of the present application, the carrier extension arm 212 has a certain height difference from the bottom surface of the carrier body 211, that is, the carrier extension arm 212 does not extend at the same height as the carrier body 211. More specifically, in embodiments of the present application, the carrier extension arm 212 has a height that is greater than the height of the carrier body 211, and the carrier extension arm 212 extends upwardly and outwardly from the carrier body 211. Here, "upward" as referred to in the present application means from the image side to the object side, and "outward" means a direction away from the optical axis. The carrier extension arm 212 having a height difference is matched with the carrier main body 211 and the anti-shake fixing portion 23 to form a receiving space along the Z-axis direction, and the receiving space can be used for receiving the anti-shake driving portion 22, so that the structure of the camera module is more compact.

As shown in fig. 25 and 26, in the embodiment of the present application, the friction plate 213 is disposed on the carrier extension arm 212, for example, the friction plate 213 is integrally formed on the carrier extension arm 212, but of course, the friction plate 213 and the carrier extension arm 212 may be separate, for example, the friction plate 213 is a separate component, and is attached to the carrier extension arm 212 by an adhesive. Preferably, the friction plate 213 is provided at a side of the carrier extension arm 212 facing the anti-shake driving section 22, that is, at a lower surface of the carrier extension arm 212. Accordingly, in the embodiment of the present application, the friction plate 213 is interposed between the anti-shake movable portion 21 and the anti-shake driving portion 22 so that the anti-shake movable portion 21 is frictionally coupled to the carrier extension arm 212 by the anti-shake driving portion 22 and the pre-compression device 24. It should be understood that the friction plate 213 functions to increase the friction between the anti-shake driving section 22 and the anti-shake movable section 21.

In addition, as shown in fig. 25 and 26, in the embodiment of the present application, the carrier extension arm 212 has two U-shaped grooves formed on two opposite sides, respectively, wherein the anti-shake movable portion 21 may be clamped by the U-shaped grooves during the installation of the anti-shake movable portion 21, so that the installation is facilitated.

As shown in fig. 25 to 27, in a specific example of the present application, the anti-shake fixing portion 23 includes an upper cover 231 and a base 232 that are fastened to each other, wherein a housing cavity 230 is formed between the upper cover 231 and the base 232, and the housing cavity 230 is configured to house the anti-shake movable portion 21, the anti-shake driving portion 22, the pre-pressing device 24, the guiding device 25 and the driving substrate 26 therein, so that not only the components in the anti-shake driving assembly 20 can be protected from being damaged due to impact, but also dust, dirt or stray light can be prevented from entering the anti-shake driving assembly 20.

When the upper cover 231 and the base 232 are made of metal, notches are required to be formed at four corners of the upper cover 231 and the base 232, and edges adjacent to the notches can be bent, so that the upper cover 231 and the base 232 can be nested and fixed. Since the photosensitive member 30 is disposed in the disposition groove 2110 of the anti-shake movable portion 21 in the present application, even dust entering through the notch of the anti-shake fixing portion 23 does not enter the photosensitive member 30, and thus does not affect the image forming effect.

That is, in the embodiment of the present application, the anti-shake fixing portion 23 has a receiving cavity 230, and the anti-shake movable portion 21 is suspended in the receiving cavity 230 of the anti-shake fixing portion 23. It should be noted that in the embodiment of the present application, a gap is provided between the anti-shake movable portion 21 and the base 232, and a gap is provided between the anti-shake movable portion 21 and the upper cover 231, in such a way that the anti-shake movable portion 21 is suspended in the receiving cavity 230 of the anti-shake fixing portion 23.

It should be understood that the anti-shake movable portion 21 is suspended in the housing chamber 230 to divide the housing chamber 230 into an upper portion 2301 and a lower portion 2302 by the anti-shake movable portion 21, wherein the upper portion 2301 is formed between the upper cover 231 and the anti-shake movable portion 21, and the lower portion 2302 is formed between the anti-shake movable portion 21 and the base 232. That is, in the embodiment of the present application, a gap is provided between the bottom surface of the upper cover 231 and the top surface of the carrier extension arm 212 of the anti-shake movable portion 21, and the gap may be used to accommodate the guide device 25, so that the anti-shake movable portion 21 supports the upper cover 231 with the anti-shake fixing portion 23 via the guide device 25; and a gap is also formed between the bottom surface of the base 232 and the bottom surface of the anti-shake movable portion 21, and the gap may be used to accommodate the anti-shake driving portion 22, the driving substrate 26, and the pre-compression device 24.

Further, as shown in fig. 28 to 34, in the embodiment of the present application, the anti-shake driving portion 22 is disposed between the anti-shake movable portion 21 and the anti-shake fixing portion 23, preferably, the anti-shake driving portion 22 is disposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23, that is, the anti-shake driving portion 22 is disposed at the lower portion 2302 of the accommodating cavity 230. The anti-shake driving part 22 is mounted on the anti-shake fixing part 23, and then is in frictional contact with the anti-shake movable part 21 to drive the anti-shake movable part 21 to translate in the X-axis direction and the Y-axis direction and/or rotate around the Z-axis direction by the anti-shake driving part 22. It should be noted that, in the embodiment of the present application, the anti-shake driving portion 22 is disposed at a side portion of the carrier body 211 of the anti-shake movable portion 21, that is, the anti-shake driving portion 22 is disposed in the accommodating space formed by the carrier extension arm 212 and the base 232, so as to avoid increasing the height of the anti-shake driving assembly 20.

As shown in fig. 29, the piezoelectric actuator includes a piezoelectric ceramic plate 223 and a friction driving part 224, and after the piezoelectric actuator is powered, the piezoelectric ceramic plate 223 of the piezoelectric actuator generates two types of surface type changes of traveling wave state, so as to drive the friction driving part 224 to generate unidirectional yaw reciprocating motion along the X-axis direction and/or the Y-axis direction, and further drive the friction plate 213 to move due to the friction contact between the friction driving part 224 and the friction plate 213.

In an example of the present application, the piezoelectric actuator may realize a surface shape change in the length direction or the width direction thereof, respectively, that is, the piezoelectric actuator may realize a surface shape change in both the length direction and the width direction thereof. When the piezoelectric actuator is arranged along the X-axis direction, the length direction of the piezoelectric actuator is along the X-axis direction, and the width direction of the piezoelectric actuator is along the Y-axis direction; when the piezoelectric actuator is arranged along the Y-axis direction, the length direction is along the Y-axis direction, and the width direction is along the X-axis direction. Compared with the prior piezoelectric motor which can only realize one-direction driving, the piezoelectric actuator can generate different waveforms to move along X, Y directions, and can also realize Z-axis rotation by utilizing the cooperation of the first piezoelectric actuator 221 and the second piezoelectric actuator 222. In addition, the height of the piezoelectric actuator is 0.7 mm-0.9 mm, and the piezoelectric actuator can be hidden in the anti-shake driving assembly 20 to reduce the height of the anti-shake driving assembly 20.

Specifically, in an example of the present application, the first friction driving part 2212 is positioned below the friction plate 213 and is in frictional contact with the friction plate 213. Preferably, in the initial state, the first friction driving part 2212 is located at a middle position of the friction plate 213, and the friction plate 213 may translate in the X-axis direction and the Y-axis direction and/or move rotationally around the Z-axis direction under the driving of the anti-shake driving part 22. It should be understood that, in other examples of the present application, the first friction driving portion 2212 may be located at other positions of the friction plate 213, for example, at an end of the friction plate 213 in the initial state, which is not limited to the present application. And, more preferably, the area of the friction plate 213 is larger than the driving stroke of the first piezoelectric actuator 221.

Specifically, in an example of the present application, the second friction driving part 2222 is located below the friction plate 213 and is in frictional contact with the friction plate 213. Preferably, in the initial state, the second friction driving part 2222 is located at a middle position of the friction plate 213, and the friction plate 213 may translate in the X-axis direction and the Y-axis direction and/or move rotationally around the Z-axis direction under the driving of the anti-shake driving part 22. Of course, in other examples of the present application, the second friction driving part 2222 may be located at other positions of the friction plate 213 in the initial state, for example, at the end of the friction plate 213, which is not limited to the present application. More preferably, the friction plate 213 has an area larger than the driving stroke of the first piezoelectric actuator 221.

As shown in fig. 31 and 34, in the anti-shake driving assembly 20, the pre-pressing means 24 provides pre-pressing force between the anti-shake driving portion 22 and the anti-shake movable portion 21 so that the friction driving portion 224 of the anti-shake driving portion 22 can be frictionally coupled to the anti-shake movable portion 21 to drive the anti-shake movable portion 21 to move in the driving direction by friction.

Specifically, as shown in fig. 31 and 34, the pre-compression device 24 includes a first elastic element 241 and a second elastic element 242. The first elastic element 241 is disposed between the first piezoelectric ceramic plate 2211 of the first piezoelectric actuator 221 and the base 232, so that the first piezoelectric actuator 221 is disposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23 in a clamped manner by the elastic force of the first elastic element 241, that is, such that the first friction driving portion 2212 of the first piezoelectric actuator 221 abuts against the carrier extension arm 212 of the anti-shake movable portion 21, in such a manner that the first piezoelectric actuator 221 is frictionally coupled to the anti-shake movable portion 21. The second elastic element 242 is disposed between the second piezoelectric ceramic plate 2221 of the second piezoelectric actuator 222 and the base 232, so that the second piezoelectric actuator 222 is interposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23 by the elastic force of the second elastic element 242, that is, such that the second friction driving portion 2222 of the second piezoelectric actuator 222 abuts against the carrier extension arm 212 of the anti-shake movable portion 21, in such a manner that the second piezoelectric actuator 222 is frictionally coupled to the anti-shake movable portion 21.

As shown in fig. 32 to 34, in order to improve the stability of the movement of the camera module during the optical anti-shake process and improve the imaging quality, a guide device 25 is provided between the upper cover 231 and the anti-shake movable part 21, so that the anti-shake movable part 21 is always supported during the movement of the anti-shake movable part 21 relative to the anti-shake fixing part 23 during the optical anti-shake process, so that the anti-shake movable part 21 can slide smoothly. That is, in the embodiment of the present application, the anti-shake driving assembly 20 further includes a guide means 25 provided between the upper surface of the carrier extension arm 212 and the upper cover 231, the guide means 25 being adapted to guide the anti-shake movable portion 21 to move in the XOY plane set by the X axis and the Y axis.

In a specific example of the present application, the guide means 25 includes a first guide groove 252 concavely formed in the anti-shake movable portion 21 and a guide member 251 accommodated in the first guide groove 252, wherein, as previously described, the guide means 25 can be always kept in contact with the anti-shake movable portion 21 and guide the movement of the anti-shake movable portion 21 during the movement of the anti-shake movable portion 21 relative to the anti-shake fixed portion 23 by the pre-pressing means 24, so that the anti-shake movable portion 21 can be smoothly moved. It should be understood that, since the guide member 251 is disposed in the first guide groove 252, the movement trace of the guide member 251 is limited to the first guide groove 252, and the guide member 251 can move in the first guide groove 252 along a plane perpendicular to the optical axis to provide a guide for the movement of the anti-shake movable portion 21.

Specifically, in this specific example, the guide means 25 is formed at the upper portion 2301 of the receiving chamber 230, wherein the first guide groove 252 is concavely formed at the upper surface of the carrier extension arm 212 of the anti-shake movable portion 21, and the opening of the first guide groove 252 is directed toward the upper cover 231 of the anti-shake fixing portion 23. That is, the portion of the upper cover 231 facing the first guide groove 252 has a planar structure, the portion of the carrier extension arm 212 facing the ball is a groove structure, that is, the guide element 251 is accommodated in the first guide groove 252 of the carrier extension arm 212, the guide element 251 can only move in the first guide groove 252, and the first guide groove 252 limits the movement of the guide element 251, so as to prevent the guide element 251 from being separated from the movement range thereof.

In a specific example of the present application, the guide member 251 is implemented as a ball, for example, the guide member 251 is implemented as a ball formed of a ceramic material. Preferably, in this specific example, the depth of the first guide groove 252 is equal to or less than the diameter of the balls so that at least a portion of the balls may be exposed to the top surface of the first guide groove 252 to enable the balls to be in frictional contact with the carrier extension arm 212 of the anti-shake movable portion 21.

It should be noted that, in other examples of the present application, the guiding device 25 may also be a slider-chute structure, which is not limited to this, i.e. the guiding element 251 may also be implemented as a chute, while the first guiding slot 252 is a chute. In another example of the present application, a second guide groove (not shown) having a direction may be provided between the upper cover 231 and the upper surface of the anti-shake movable section 21, and the guide member 251 may be provided in the second guide groove, and the movement locus of the guide member 251 may be limited to the track, so that the guide function may be provided during the movement of the photosensitive assembly 30. Further, since the balls can replace sliding friction by rolling friction when the guide member 251 is a ball, friction force between the anti-shake movable portion 21 and the upper cover 231 can be further reduced.

For example, in a specific example of the present application, a second guide groove along the x-axis direction may be provided on the bottom surface of the upper cover 231, a second guide groove along the y-axis direction may be provided on the upper surface of the carrier extension arm 212 (the bottom surface and the upper surface refer to the direction from the photosensitive chip 32 to the optical lens 10 along the optical axis direction), and a "cross" accommodating cavity may be formed by the second guide groove along the y-axis direction and the second guide groove along the x-axis direction, so as to accommodate the guide element 251 therein. Preferably, the number of the guide member 251 and the accommodating chamber is 4 so that the anti-shake movable portion 21 can be kept stable. In the optical anti-shake process, the guiding element 251 and the second guiding groove are used as guiding mechanisms, so that a larger OIS stroke can be provided for the photosensitive assembly 30. Of course, in other embodiments of the present application, both the track along the x-axis direction and the second guide groove along the y-axis direction may be provided on the upper surface of the carrier extension arm 212, and two same-side tracks may be provided on the same side of the carrier extension arm 212. In contrast, a second guide groove is provided on the lower surface of the upper cover 231, which is different from the upper surface of the carrier extension arm 212, that is, a second guide groove is provided on the upper cover 231, which is in the y-axis direction, at a position opposite to the second guide groove in the x-axis direction of the carrier extension arm 212, and a second guide groove is provided on the upper cover 231, which is in the x-axis direction, at a position opposite to the second guide groove in the y-axis direction of the carrier extension arm 212, so as to avoid interference.

It should be noted that, in the embodiment of the present application, the guide member 251 of the guide device 25 is clamped between the anti-shake movable portion 21 and the upper cover 231 of the anti-shake fixing portion 23, that is, the guide member 251 of the guide device 25 is clamped to the upper portion 2301 of the receiving chamber 230, and therefore, the guide member 251 can also provide a pre-pressing force that moves the anti-shake movable portion 21 downward so that the anti-shake movable portion 21 is frictionally coupled to the anti-shake driving portion 22. That is, in the embodiment of the present application, the guide member 251 of the guide device 25 also substantially plays the role of the pre-compression device 24, that is, the guide member 251 may provide the support for the anti-shake movable portion 21 as a part of the guide device 25, or may provide the required pre-compression force for the anti-shake driving portion 22 as the pre-compression device 24.

More specifically, in the embodiment of the present application, the guide member 251 is sandwiched between the upper cover 231 and the anti-shake movable portion 21, and thus, the guide member 251 can generate a pre-compression force forcing the anti-shake movable portion 21 downward by the gravity of the guide member 251 itself and the force applied by the upper cover 231, and the anti-shake movable portion 21 is provided at the lower side thereof with the anti-shake driving portion 22 and the pre-compression device 24, so that the pre-compression force generated by the guide member 251 can cause the anti-shake movable portion 21 to collide with the anti-shake driving portion 22, and on the other hand, the pre-compression device 24 can provide a pre-compression force of the anti-shake driving portion 22 upward, so that the anti-shake driving portion 22 can be ensured to always be in frictional contact with the anti-shake movable portion 21 under the cooperation of the guide member 251 and the pre-compression device 24.

Further, in the embodiment of the present application, the first and second piezoelectric ceramic plates 2211 and 2221 are fixed to the inner bottom surface of the base 232 in relatively parallel, respectively, and the first and second friction driving parts 2212 and 2222 are fixed to the first and second piezoelectric ceramic plates 2211 and 2221 and face the anti-shake movable part 21, and are held in frictional contact with the friction plates 213 of the anti-shake movable part 21. That is, in the height direction, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are respectively disposed below the anti-shake movable portion 21, and the guide member 251 is disposed between the anti-shake movable portion 21 and the upper cover 231, that is, the guide member 251 is disposed above the anti-shake movable portion 21. That is, the setting module is composed of an upper cover 231, a guide member 251, an anti-shake movable portion 21, a first piezoelectric actuator 221 and a second piezoelectric actuator 222, and a base 232 in the order from top to bottom along the Z-axis direction, the anti-shake movable portion 21 is clamped between the guide member 251 and the first piezoelectric actuator 221 and the second piezoelectric actuator 222, the guide member 251 can generate downward pre-pressing force under the action of the upper cover 231, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 can be held in frictional contact with the friction plate 213 of the anti-shake movable portion 21 by the pre-pressing force.

In the present application, the first friction driving part 2212 and the second friction driving part 2222 are respectively in frictional contact with two opposite sides of the carrier extension arm 212, the guide element 251 is respectively in frictional contact with four corners of the upper cover 231 and the carrier extension arm 212, the friction between the friction driving part and the friction plate 213 is active friction, the friction between the guide element 251 and the upper cover 231 is passive friction, and the friction force between the first friction driving part 2212, the second friction driving part 2222 and the friction plate 213 of the carrier extension arm 212 is greater than the friction force between the guide element 251 and the upper cover 231. That is, a large friction force is generated between the first friction driving portion 2212, the second friction driving portion 2222 and the friction plate 213 of the carrier extension arm 212 under the driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222, so as to drive the anti-shake movable portion 21 to move. Under the movement of the anti-shake movable portion 21, a small friction force is generated between the guide element 251 and the upper cover 231, so as to avoid obstructing the movement of the anti-shake movable portion 21, thereby affecting the anti-shake effect.

It should be noted that, in other examples of the present application, the guiding device 25 may be disposed between the anti-shake movable portion 21 and the base 232 (i.e. disposed at the lower portion 2302 of the housing cavity 230), while the anti-shake driving portion 22, the pre-pressing device 24 and the driving substrate 26 are disposed between the anti-shake movable portion 21 and the upper cover 231 (i.e. disposed at the upper portion 2301 of the housing cavity 230), but it is not changed that the guiding element 251 of the guiding device 25 is clamped at the lower portion 2302 of the housing cavity 230 and provides the pre-pressing force that makes the anti-shake movable portion 21 abut against the anti-shake driving portion 22. That is, although the positions of the guide device 25 and the anti-shake driving portion 22 relative to the anti-shake movable portion 21 can be adjusted, the guide element 251 of the guide device 25 can still perform a dual effect: guiding and pre-pressing.

Further, as shown in fig. 25 to 35, in the embodiment of the present application, the driving substrate 26 is disposed between the anti-shake driving portion 22 and the base 232. Specifically, as shown in fig. 25, a set of positioning points 2321 is provided on the bottom surface of the base 232, and the driving substrate 26 is fixed on the base 232 by the positioning points 2321 of the base 232.

Fig. 35 illustrates a modified embodiment of the anti-shake driving assembly 20 according to the embodiment of the application, wherein, as shown in fig. 35, unlike the above-described embodiment, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 may also be disposed relatively parallel in the Y-axis direction, that is, the length directions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are in the Y-axis direction, that is, the width directions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are in the Y-axis direction.

In an example of the present application, the first piezoelectric actuator 221 deforms in the longitudinal direction, the second piezoelectric actuator 222 deforms in the longitudinal direction, and the anti-shake movable portion 21 moves in the Y-axis direction under the common driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222; in another example of the present application, the first piezoelectric actuator 221 generates a deformation in the width direction, the second piezoelectric actuator 222 generates a deformation in the width direction, and the anti-shake movable portion 21 moves in the X-axis direction under the common drive of the first piezoelectric actuator 221 and the second piezoelectric actuator 222; in another example of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 first generate deformation along the length direction and then generate deformation along the width direction, and the anti-shake movable portion 21 is driven by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move along the Y axis direction and then move along the X axis direction, that is, the anti-shake movable portion 21 can move in the plane where XOY is located; in another example of the present application, the first piezoelectric actuator 221 is deformed in the longitudinal direction, the second piezoelectric actuator 222 is deformed in the opposite direction (i.e., the +y direction and the-Y direction), and the anti-shake movable portion 21 is rotated around the Z axis by driving the first piezoelectric actuator 221 and the second piezoelectric actuator 222. That is, in the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 can cooperate with each other to drive the anti-shake movable portion 21 to translate in the X-axis direction and the Y-axis direction and/or rotate around the Z-axis direction, so as to achieve translational anti-shake and/or rotational anti-shake of the photosensitive assembly 30.

Fig. 36 illustrates another modified embodiment of the anti-shake driving assembly 20 according to the embodiment of the application, in which, as shown in fig. 36, unlike the above-described embodiment, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed perpendicular to each other, i.e., the length direction of the first piezoelectric actuator 221 is along the X-axis direction, and the width direction is along the Y-axis direction; the second piezoelectric actuator 222 has a length along the Y-axis direction and a width along the X-axis direction. The first piezoelectric actuator 221 and the second piezoelectric actuator 222 are located on adjacent sides of the drive assembly 20.

In an example of the present application, the first piezoelectric actuator 221 deforms in the longitudinal direction, the second piezoelectric actuator 222 deforms in the width direction, and the anti-shake movable portion 21 moves in the X-axis direction under the common driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222; in another example of the present application, the first piezoelectric actuator 221 deforms in the width direction, the second piezoelectric actuator 222 deforms in the length direction, and the anti-shake movable portion 21 moves in the Y-axis direction under the common driving of the first and second piezoelectric actuators 221 and 222; in another example of the present application, the first piezoelectric actuator 221 first deforms in the length direction and then deforms in the width direction, the second piezoelectric actuator 222 first deforms in the width direction and then deforms in the length direction, and the anti-shake movable portion 21 is driven by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move in the X-axis direction and then move in the Y-axis direction, that is, the anti-shake movable portion 21 can move in the plane in which XOY is located. That is, in the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 can cooperate with each other to drive the anti-shake movable portion 21 to translate in the X-axis direction and the Y-axis direction.

Schematic anti-shake drive assembly

According to another aspect of the present application, there is also provided an anti-shake driving assembly 20 including: an anti-shake fixing portion 23 having a housing chamber 230; an anti-shake movable portion 21 suspended in the housing chamber 230 of the anti-shake fixing portion 23 to divide the housing chamber 230 into an upper portion 2301 and a lower portion 2302 by the anti-shake movable portion 21, wherein the anti-shake movable portion 21 is adapted to mount the photosensitive element 30 thereon; an anti-shake driving part 22 disposed at a lower part 2302 of the receiving chamber 230, wherein the anti-shake driving part 22 includes a first piezoelectric actuator 221 and a second piezoelectric actuator 222 frictionally coupled to the anti-shake movable part 21, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 being adapted to actuate the anti-shake movable part 21 to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane about a Z axis perpendicular to the X axis and the Y axis; and a guide member 251 clampingly disposed at an upper portion 2301 of the receiving chamber 230, wherein the clamped guide member 251 generates a pre-pressure force forcing the anti-shake movable portion 21 to abut against the first and second piezoelectric actuators 221 and 222 so that the first and second piezoelectric actuators 221 and 222 are frictionally coupled to the anti-shake movable portion 21 by the pre-pressure force.

In the anti-shake driving assembly 20 according to the present application, the anti-shake fixing portion 23 includes a base 232 and an upper cover 231 engaged with the base 232, an upper portion 2301 of the receiving chamber 230 is formed between the upper cover 231 and the anti-shake movable portion 21, and a lower portion 2302 of the receiving chamber 230 is formed between the base 232 and the anti-shake movable portion 21.

In the anti-shake driving assembly 20 according to the present application, a gap is provided between the anti-shake movable portion 21 and the base 232, and a gap is provided between the anti-shake movable portion 21 and the upper cover 231, in such a way that the anti-shake movable portion 21 is suspended in the receiving cavity 230 of the anti-shake fixing portion 23.

In the anti-shake driving assembly 20 according to the present application, the anti-shake movable portion 21 is smoothly sandwiched between the first piezoelectric actuator 221 and the guide member 251 and between the second piezoelectric actuator 222 and the guide member 251.

In the anti-shake driving assembly 20 according to the present application, the anti-shake movable portion 21 includes a carrier body 211 and a carrier extension arm 212 extending outwardly from the carrier body 211, wherein the guide member 251 is sandwiched between a lower surface of the upper cover 231 and an upper surface of the carrier extension arm 212, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are frictionally coupled to the lower surface of the carrier extension arm 212.

In the anti-shake driving assembly 20 according to the present application, the anti-shake movable portion 21 further includes a friction plate 213 formed at a lower surface of the carrier extension arm 212, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are frictionally coupled to the friction plate 213.

In the anti-shake driving assembly 20 according to the present application, the anti-shake driving assembly 20 further includes a first guide groove 252 concavely formed at the upper surface of the carrier extension arm 212, the guide member 251 is received in the first guide groove 252, the guide member 251 and the first guide groove 252 form a guide means 25 for guiding the anti-shake movable portion 21 and the photosensitive assembly 30 to move, wherein at least a portion of the guide member 251 protrudes from the groove and abuts against the lower surface of the upper cover 231, in such a manner that the guide member 251 is clamped between the lower surface of the upper cover 231 and the upper surface of the carrier extension arm 212.

In the anti-shake driving assembly 20 according to the present application, the guide member 251 is a guide member 251.

In the anti-shake driving assembly 20 according to the present application, the guide member 251 is a slider.

In the anti-shake driving assembly 20 according to the present application, the first guide groove 252 extends along the direction set in the X-axis, and the guide means 25 further includes a second guide groove concavely formed at the lower surface of the upper cover 231, the second guide groove extending along the direction set in the Y-axis.

In the anti-shake driving assembly 20 according to the present application, the first guide groove 252 extends along the direction set by the Y-axis, and the guide means 25 further includes a second guide groove concavely formed at the lower surface of the upper cover 231, the second guide groove extending along the direction set by the X-axis.

In the anti-shake driving assembly 20 according to the present application, the first guide section and the second guide groove are disposed opposite to each other and cross each other.

In the anti-shake driving assembly 20 according to the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 have the same height dimension.

In the anti-shake driving assembly 20 according to the present application, the height dimension of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is 0.7mm to 0.9mm.

In the anti-shake driving assembly 20 according to the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are traveling wave type piezoelectric actuators, wherein the first piezoelectric actuator 221 includes a first piezoelectric ceramic plate 2211 and a first friction driving portion 2212 protruding from the first piezoelectric ceramic plate 2211, and the first piezoelectric ceramic plate 2211 is adapted to deform after being electrically driven to drive the first friction driving portion 2212 to perform unidirectional yaw reciprocation; the second piezoelectric actuator 222 includes a second piezoelectric ceramic plate 2221 and a second friction driving portion 2222 protruding from the second piezoelectric ceramic plate 2221, where the second piezoelectric ceramic plate 2221 is adapted to deform after being electrically driven to drive the second friction driving portion 2222 to perform unidirectional yaw reciprocation.

In the anti-shake driving assembly 20 according to the present application, the first piezoelectric ceramic plate 2211 is disposed at the anti-shake fixing portion 23, the first friction driving portion 2212 is frictionally coupled to the anti-shake movable portion 21, the second piezoelectric ceramic plate 2221 is disposed at the anti-shake fixing portion 23, and the second friction driving portion 2222 is frictionally coupled to the anti-shake movable portion 21.

In the anti-shake driving assembly 20 according to the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed parallel to each other on opposite sides of the photosensitive assembly 30.

In the anti-shake driving assembly 20 according to the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are symmetrically arranged on opposite sides of the photosensitive assembly 30 with respect to the photosensitive assembly 30 with the X-axis or the Y-axis as a symmetry axis.

In the anti-shake driving assembly 20 according to the present application, the first piezoelectric actuator 221 is adapted to deform in the direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move in the direction set by the X-axis, and the second piezoelectric actuator 222 is adapted to deform in the direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 to move in the direction set by the X-axis to actuate the anti-shake movable portion 21 and the photosensitive assembly 30 by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move in the direction set by the X-axis;

In the anti-shake driving assembly 20 according to the present application, the anti-shake driving assembly 20 further includes a driving substrate 26 disposed between the anti-shake movable portion 21 and the base 232, the driving substrate 26 includes at least one conductive end and a connection end 263 extending outwardly from the conductive end, and the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are electrically connected to the at least one electrical connection end 263.

In the anti-shake driving assembly 20 according to the present application, the at least one conductive terminal includes a first conductive terminal 261 and a second conductive terminal 262, the first piezoelectric actuator 221 is electrically connected to the first conductive terminal 261, and the second piezoelectric actuator 222 is electrically connected to the second conductive terminal 262.

In the anti-shake driving assembly 20 according to the present application, the anti-shake movable portion 21 has a slot formed at a side wall of the carrier body 211, the slot being configured to allow the wiring board 31 of the photosensitive assembly 30 to protrude from the seating groove 2110.

In the anti-shake driving assembly 20 according to the present application, the base 232 has an opening formed on a sidewall thereof, wherein the connection terminal 263 extends outward from the at least one conductive terminal and passes through the opening.

In the anti-shake driving assembly 20 according to the application, the opening and the slot have a height difference.

In the anti-shake driving assembly 20 according to the present application, the anti-shake driving assembly 20 further includes a pre-compression device 24 disposed between the anti-shake driving part 22 and the anti-shake fixing part 23 to force the anti-shake driving part 22 to be frictionally coupled to the anti-shake movable part 21 by the pre-compression provided by the pre-compression device 24.

In the anti-shake driving assembly 20 according to the present application, the pre-pressing means 24 includes a first elastic member 241 disposed between the base 232 and the first piezoelectric ceramic plate 2211 of the first piezoelectric actuator 221 to generate the pre-pressing force by the elastic force of the first elastic member 241 itself to force the first friction driving portion 2212 of the first piezoelectric actuator 221 to abut against the friction plate 213 in such a manner that the first friction driving portion 2212 of the first piezoelectric actuator 221 is frictionally coupled to the friction plate 213; the pre-pressing device 24 further includes a second elastic element 242 disposed between the substrate 232 and the second piezoelectric ceramic plate 2221 of the second piezoelectric actuator 222, so that the pre-pressing force generated by the elastic force of the second elastic element 242 itself forces the second friction driving part 2222 of the second piezoelectric actuator 222 to abut against the friction plate 213 in such a manner that the second friction driving part 2222 of the second piezoelectric actuator 222 is frictionally coupled to the friction plate 213.

In the anti-shake driving assembly 20 according to the present application, the thickness dimension of the first elastic member 241 and the second elastic member 242 is 10um to 50um.

In summary, the anti-shake driving assembly 20 according to the embodiment of the application is illustrated, wherein the guiding device 25 and the anti-shake driving portion 22 of the anti-shake driving assembly 20 are disposed on two opposite sides of the anti-shake movable portion 21, and the guiding device 25, the anti-shake movable portion 21 and the anti-shake driving portion 22 are disposed in the housing cavity 230 formed by the anti-shake fixing portion 23 in a clamped manner, so that the guiding element 251 of the guiding device 25 not only guides the movement of the anti-shake movable portion 21, but also provides a pre-compression force to keep the anti-shake driving portion 22 frictionally coupled to the anti-shake movable portion 21.

Exemplary camera Module

As shown in fig. 37 to 52, an image capturing module according to an embodiment of the present application is illustrated, which includes a photosensitive member 30, an optical lens 10 held on a photosensitive path of the photosensitive member 30, and an anti-shake driving assembly 20 for driving the photosensitive member 30 to move to achieve optical performance adjustment of the image capturing module.

In the embodiment of the present application, the photosensitive member 30 is mounted in the anti-shake driving assembly 20, for example, as shown in fig. 37 to 52, the anti-shake driving assembly 20 has a mounting groove 2110 located in a middle area thereof, and the photosensitive member 30 is mounted in the anti-shake driving assembly 20 in such a manner as to be received in the mounting groove 2110, so that the anti-shake driving assembly 20 can carry the photosensitive member 30 to move along a predetermined direction when being driven, for example, to adjust the optical performance of the camera module, for example, to perform optical anti-shake. Also, the optical lens 10 is held on the photosensitive path of the photosensitive assembly 30, for example, the optical lens 10 is mounted on the anti-shake driving assembly 20 in such a manner as to be fixed to the top surface of the anti-shake driving assembly 20 in such a manner that the optical lens 10 is held on the photosensitive path of the photosensitive assembly 30, so that the photosensitive assembly 30 can receive light projected from the optical lens 10 for imaging.

More specifically, as shown in fig. 37 to 39, the optical lens 10 includes a lens barrel 11 and a lens group mounted in the lens barrel 11, wherein the lens group includes at least one optical lens 12, and the number of the at least one optical lens 12 is not limited.

As shown in fig. 40, in the embodiment of the present application, the photosensitive assembly 30 includes a circuit board 31, a photosensitive chip 32, an electronic component 33, a base 34, and a filter element 35. The photosensitive chip 32 is disposed on the circuit board 31 and electrically connected to the circuit board 31, for example, the photosensitive chip 32 is mounted on the circuit board 31 and electrically connected to the circuit board 31, wherein the base 34 is disposed on the circuit board 31 and located at a peripheral side of the photosensitive chip 32, and the filter element 35 is held on a photosensitive path of the photosensitive chip 32 so as to be mounted on the base 34. The photosensitive chip 32 includes a photosensitive region and a non-photosensitive region surrounding the photosensitive region, wherein the photosensitive region is composed of a pixel array for receiving and sensing imaging light from the outside and converting optical signals into electrical signals.

Therefore, there is a need for a new driving scheme for a camera module that is adaptive, and the new driver not only can meet the driving requirement of the camera module for optical performance adjustment, but also can meet the development requirement of light and thin camera module.

As shown in fig. 41 to 52, in the embodiment of the present application, the anti-shake driving assembly 20 includes an anti-shake movable portion 21, an anti-shake driving portion 22, an anti-shake fixing portion 23, a pre-pressing device 24, a guiding device 25 and a driving substrate 26, wherein the anti-shake movable portion 21 is adapted to mount the photosensitive assembly 30 thereon, the anti-shake movable portion 21 is movable relative to the anti-shake fixing portion 23, the anti-shake driving portion 22 is disposed between the anti-shake fixing portion 23 and the anti-shake movable portion 21, and the anti-shake driving portion 22 is frictionally coupled to the anti-shake movable portion 21, so as to drive the anti-shake movable portion 21 to move relative to the anti-shake fixing portion 23 through a friction driving force provided by the anti-shake driving portion 22, and in this way, the photosensitive assembly 30 is driven to move, thereby realizing adjustment of the optical performance of the camera module.

Specifically, in the embodiment of the present application, the anti-shake fixing portion 23 has a receiving cavity 230, wherein the anti-shake movable portion 21, the anti-shake driving portion 22, the guiding device 25, the pre-pressing device 24, and the driving substrate 26 are received in the receiving cavity 230 of the anti-shake fixing portion 23, that is, the anti-shake fixing portion 23 may receive the anti-shake movable portion 21, the anti-shake driving portion 22, the guiding device 25, the pre-pressing device 24, and the driving substrate 26 therein. More specifically, in the embodiment of the present application, the anti-shake movable portion 21 is suspended in the housing chamber 230 of the anti-shake fixing portion 23 to divide the housing chamber 230 into two parts (here, for convenience of description, two parts of the housing chamber 230 are defined as a first part 2301 and a second part 2302), wherein the pre-compression device 24, the driving substrate 26 and the anti-shake driving portion 22 are provided to the first part 2301 of the housing chamber 230, and the pre-compression device 24 is provided to the second part 2302 of the housing chamber 230 opposite to the first part 2301.

Also, in the embodiment of the present application, in the second portion 2302 of the accommodating cavity 230, the driving substrate 26 is electrically connected to the anti-shake driving portion 22, so as to conduct the circuit of the anti-shake driving assembly 20, and the pre-compression device 24 maintains the frictional coupling between the anti-shake driving portion 22 and the anti-shake movable portion 21 through the pre-compression generated by the pre-compression device. In the second portion 2302 of the receiving chamber 230, the guide device 25 is used to guide the movement of the anti-shake movable portion 21.

As shown in fig. 41 and 42, in the embodiment of the present application, the anti-shake movable portion 21 includes a carrier body 211, a carrier extension arm 212, and a friction plate 213. The carrier body 211 forms the seating groove 2110 for mounting the photosensitive assembly 30 therein, wherein the photosensitive assembly 30 is fixed in the seating groove 2110 so that the photosensitive assembly 30 can be moved by the chip anti-shake movable portion 21.

As shown in fig. 41 and 42, in an embodiment of the present application, the carrier extension arm 212 extends outwardly from the carrier body 211, e.g., the carrier extension arm 212 integrally extends outwardly from the carrier body 211. In particular, in the embodiment of the present application, the carrier extension arm 212 has a certain height difference from the bottom surface of the carrier body 211, that is, the carrier extension arm 212 does not extend at the same height as the carrier body 211. More specifically, in embodiments of the present application, the carrier extension arm 212 has a height that is greater than the height of the carrier body 211, and the carrier extension arm 212 extends upwardly and outwardly from the carrier body 211. Here, "upward" as referred to in the present application means from the image side to the object side, and "outward" means a direction away from the optical axis. The carrier extension arm 212 having a height difference is matched with the carrier main body 211 and the anti-shake fixing portion 23 to form a receiving space along the Z-axis direction, and the receiving space can be used for receiving the anti-shake driving portion 22, so that the structure of the camera module is more compact.

As shown in fig. 41 and 42, in the embodiment of the present application, the friction plate 213 is provided on the carrier extension arm 212, for example, the friction plate 213 is integrally formed on the carrier extension arm 212, but of course, the friction plate 213 and the carrier extension arm 212 may be configured as separate members, for example, the friction plate 213 is a separate member and attached to the carrier extension arm 212 by an adhesive. Preferably, the friction plate 213 is provided at a side of the carrier extension arm 212 facing the anti-shake driving section 22, that is, at a lower surface of the carrier extension arm 212. Accordingly, in the embodiment of the present application, the friction plate 213 is interposed between the anti-shake movable portion 21 and the anti-shake driving portion 22 so that the anti-shake movable portion 21 is frictionally coupled to the carrier extension arm 212 by the anti-shake driving portion 22 and the pre-compression device 24. It should be understood that the friction plate 213 functions to increase the friction between the anti-shake driving section 22 and the anti-shake movable section 21.

Further, as shown in fig. 41 and 42, in the embodiment of the present application, the carrier extension arm 212 has two U-shaped grooves formed at opposite sides, respectively, wherein the anti-shake movable portion 21 may be clamped by the U-shaped grooves during the installation of the anti-shake movable portion 21, so that the installation is facilitated.

As shown in fig. 41 to 43, in a specific example of the present application, the anti-shake fixing portion 23 includes an upper cover 231 and a base 232 that are fastened to each other, wherein the accommodating cavity 230 is formed between the upper cover 231 and the base 232, and the accommodating cavity 230 is used for accommodating the anti-shake movable portion 21, the anti-shake driving portion 22, the pre-pressing device 24, the guiding device 25 and the driving substrate 26 therein, so that not only the impact damage of each element in the anti-shake driving assembly 20 can be protected, but also dust, dirt or stray light can be prevented from entering the inside of the anti-shake driving assembly 20.

It should be appreciated that the anti-shake movable portion 21 is suspended in the housing chamber 230 to divide the housing chamber 230 into a first portion 2301 and a second portion 2302 by the anti-shake movable portion 21, wherein the first portion 2301 is formed between the upper cover 231 and the anti-shake movable portion 21 (i.e., the first portion 2301 is an upper portion of the housing chamber), and the second portion 2302 is formed between the anti-shake movable portion 21 and the base 232 (i.e., the second portion 2302 is a lower portion of the housing chamber 230). Accordingly, in the embodiment of the present application, a gap is formed between the bottom surface of the upper cover 231 and the top surface of the carrier extension arm 212 of the anti-shake movable portion 21 at the upper portion of the receiving cavity 230, and the gap may be used to receive the guide device 25, so that the anti-shake movable portion 21 supports the upper cover 231 of the anti-shake fixing portion 23 via the guide device 25; and a gap is also provided between the bottom surface of the base 232 and the bottom surface of the anti-shake movable portion 21 at the lower portion of the receiving chamber 230, and the gap may be used to receive the anti-shake driving portion 22, the driving substrate 26, and the pre-compression device 24.

Further, as shown in fig. 44 to 50, in the embodiment of the present application, the anti-shake driving portion 22 is disposed between the anti-shake movable portion 21 and the anti-shake fixing portion 23, preferably, the anti-shake driving portion 22 is disposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23, that is, the anti-shake driving portion 22 is disposed at the second portion 2302 of the accommodating cavity 230. The anti-shake driving part 22 is mounted on the anti-shake fixing part 23, and then is in frictional contact with the anti-shake movable part 21 to drive the anti-shake movable part 21 to translate in the X-axis direction and the Y-axis direction and/or rotate around the Z-axis direction by the anti-shake driving part 22. It should be noted that, in the embodiment of the present application, the anti-shake driving portion 22 is disposed at a side portion of the carrier body 211 of the anti-shake movable portion 21, that is, the anti-shake driving portion 22 is disposed in the accommodating space formed by the carrier extension arm 212 and the base 232, so as to avoid increasing the height of the anti-shake driving assembly 20.

As shown in fig. 45, the piezoelectric actuator includes a piezoelectric ceramic plate 223 and a friction driving part 224, and after the piezoelectric actuator is powered, the piezoelectric ceramic plate 223 of the piezoelectric actuator generates two types of surface type changes of traveling wave state, so as to drive the friction driving part 224 to generate unidirectional deflection reciprocating motion along the X-axis direction and/or the Y-axis direction, and further drive the friction plate 213 to move due to the friction contact between the friction driving part 224 and the friction plate 213.

As shown in fig. 47 and 50, in the anti-shake driving assembly 20, the pre-pressing means 24 provides pre-pressing force between the anti-shake driving portion 22 and the anti-shake movable portion 21 so that the friction driving portion 224 of the anti-shake driving portion 22 can be frictionally coupled to the anti-shake movable portion 21 to drive the anti-shake movable portion 21 to move in the driving direction by friction.

Specifically, as shown in fig. 47 and 50, the pre-compression device 24 includes a first elastic element 241 and a second elastic element 242. The first elastic element 241 is disposed between the first piezoelectric ceramic plate 2211 of the first piezoelectric actuator 221 and the base 232, so that the first piezoelectric actuator 221 is disposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23 in a clamped manner by the elastic force of the first elastic element 241, that is, such that the first friction driving portion 2212 of the first piezoelectric actuator 221 abuts against the carrier extension arm 212 of the anti-shake movable portion 21, in such a manner that the first piezoelectric actuator 221 is frictionally coupled to the anti-shake movable portion 21. The second elastic element 242 is disposed between the second piezoelectric ceramic plate 2221 of the second piezoelectric actuator 222 and the base 232, so that the second piezoelectric actuator 222 is interposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23 by the elastic force of the second elastic element 242, that is, such that the second friction driving portion 2222 of the second piezoelectric actuator 222 abuts against the carrier extension arm 212 of the anti-shake movable portion 21, in such a manner that the second piezoelectric actuator 222 is frictionally coupled to the anti-shake movable portion 21.

As shown in fig. 48 to 50, in order to improve the stability of the movement of the camera module during the optical anti-shake process and improve the imaging quality, a guide device 25 is provided between the upper cover 231 and the anti-shake movable part 21, so that the anti-shake movable part 21 is always supported during the movement of the anti-shake movable part 21 relative to the anti-shake fixing part 23 during the optical anti-shake process, so that the anti-shake movable part 21 can slide smoothly. That is, in the embodiment of the present application, the anti-shake driving assembly 20 further includes a guide means 25 provided between the upper surface of the carrier extension arm 212 and the upper cover 231, the guide means 25 being adapted to guide the anti-shake movable portion 21 to move in the XOY plane set by the X axis and the Y axis.

Specifically, in this specific example, the guide means 25 is formed at the first portion 2301 of the receiving chamber 230, wherein the first guide groove 252 is concavely formed at the upper surface of the carrier extension arm 212 of the anti-shake movable portion 21, and the opening of the first guide groove 252 is directed toward the upper cover 231 of the anti-shake fixing portion 23. That is, the portion of the upper cover 231 facing the first guide groove 252 has a planar structure, the portion of the carrier extension arm 212 facing the ball is a groove structure, that is, the guide element 251 is accommodated in the first guide groove 252 of the carrier extension arm 212, the guide element 251 can only move in the first guide groove 252, and the first guide groove 252 limits the movement of the guide element 251, so as to prevent the guide element 251 from being separated from the movement range thereof.

It should be noted that, in the embodiment of the present application, the guide member 251 of the guide device 25 is clamped between the anti-shake movable portion 21 and the upper cover 231 of the anti-shake fixing portion 23, that is, the guide member 251 of the guide device 25 is clamped to the first portion 2301 of the receiving cavity 230, and therefore, the guide member 251 can also provide a pre-compression force that moves the anti-shake movable portion 21 downward so that the anti-shake movable portion 21 is frictionally coupled to the anti-shake driving portion 22. That is, in the embodiment of the present application, the guide member 251 of the guide device 25 also substantially plays the role of the pre-compression device 24, that is, the guide member 251 may provide the support for the anti-shake movable portion 21 as a part of the guide device 25, or may provide the required pre-compression force for the anti-shake driving portion 22 as the pre-compression device 24.

That is, in the embodiment of the present application, when the anti-shake driving section 22 is driven, the friction force between the anti-shake driving section 22 and the anti-shake movable section 21 is larger than the friction force encountered by the guide device 25 at the first portion 2301. It should be understood that the guide member 251 (e.g., balls) of the guide device 25 is disposed in the first portion 2301 of the receiving chamber 230 in a clamped manner, so that when the anti-shake movable portion 21 is driven by the anti-shake driving portion 22 through a frictional driving force, the guide member 251 of the guide device 25 also rubs against the upper cover 231. Accordingly, in order to exert the guiding function of the guiding device 25 and avoid the guiding element 251 from affecting the movement of the anti-shake movable portion 21, in the embodiment of the present application, the friction between the anti-shake driving portion 22 and the anti-shake movable portion 21 is configured to be active friction, and the friction between the guiding element 251 and the upper cover 231 is configured to be passive friction, that is, the friction force between the anti-shake driving portion 22 and the anti-shake movable portion 21 is made to be greater than the friction force encountered by the guiding device 25 at the first portion 2301, in this way, the guiding element 251 is prevented from obstructing the movement of the anti-shake movable portion 21, thereby affecting the anti-shake effect.

It should be noted that, in other examples of the present application, the guiding device 25 may be disposed between the anti-shake movable portion 21 and the base 232 (i.e., disposed at the second portion 2302 of the housing cavity 230), and the anti-shake driving portion 22, the pre-pressing device 24 and the driving substrate 26 may be disposed between the anti-shake movable portion 21 and the upper cover 231 (i.e., disposed at the first portion 2301 of the housing cavity 230), but the friction force between the guiding element 251 of the guiding device 25 and the base 232 is smaller than the friction driving force between the anti-shake driving portion 22 and the anti-shake movable portion, in such a way that the guiding device 25 is ensured to be capable of performing the guiding function while avoiding the movement of the anti-shake movable portion being affected by the presence thereof.

Further, as shown in fig. 41 to 51, in the embodiment of the present application, the driving substrate 26 is disposed between the anti-shake driving portion 22 and the base 232. Specifically, as shown in fig. 41, a set of positioning points 2321 is provided on the bottom surface of the base 232, and the driving substrate 26 is fixed on the base 232 by the positioning points 2321 of the base 232.

Fig. 51 illustrates a modified embodiment of the anti-shake driving assembly 20 according to an embodiment of the application, in which, as shown in fig. 51, unlike the above-described embodiment, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 may also be disposed relatively parallel in the Y-axis direction, that is, the length directions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are in the Y-axis direction, that is, the width directions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are in the Y-axis direction.

Fig. 52 illustrates another modified embodiment of the anti-shake driving assembly 20 according to the embodiment of the application, in which, as shown in fig. 52, unlike the above-described embodiment, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed perpendicular to each other, i.e., the length direction of the first piezoelectric actuator 221 is along the X-axis direction, and the width direction is along the Y-axis direction; the second piezoelectric actuator 222 has a length along the Y-axis direction and a width along the X-axis direction. The first piezoelectric actuator 221 and the second piezoelectric actuator 222 are located on adjacent sides of the drive assembly 20.

Schematic anti-shake drive assembly

According to another aspect of the present application, there is also provided an anti-shake driving assembly 20 including: an anti-shake fixing portion 23 having a housing chamber 230; an anti-shake movable portion 21 suspended in the housing chamber 230 of the anti-shake fixing portion 23 to divide the housing chamber 230 into a first portion 2301 and a second portion 2302 by the anti-shake movable portion 21, wherein the anti-shake movable portion 21 is adapted to mount the photosensitive element 30 thereon; an anti-shake driving section 22 provided at a second portion 2302 of the housing chamber 230, wherein the anti-shake driving section 22 includes a first piezoelectric actuator 221 and a second piezoelectric actuator 222 frictionally coupled to the anti-shake movable section 21, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 being adapted to actuate the anti-shake movable section 21 to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane about a Z axis perpendicular to the X axis and the Y axis; and a guide member 251 clampingly disposed at the first portion 2301 of the receiving chamber 230, wherein the clamped guide member 251 generates a pre-pressure force forcing the anti-shake movable portion 21 to abut against the first piezoelectric actuator 221 and the second piezoelectric actuator 222 so that the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are frictionally coupled to the anti-shake movable portion 21 by the pre-pressure force.

In the anti-shake driving assembly 20 according to the present application, the anti-shake fixing portion 23 includes a base 232 and an upper cover 231 engaged with the base 232, a first portion 2301 of the housing chamber 230 is formed between the upper cover 231 and the anti-shake movable portion 21, and a second portion 2302 of the housing chamber 230 is formed between the base 232 and the anti-shake movable portion 21.

Exemplary camera Module

As shown in fig. 53 to 68, an image capturing module according to an embodiment of the present application is illustrated, which includes a photosensitive member 30, an optical lens 10 held on a photosensitive path of the photosensitive member 30, and an anti-shake driving assembly 20 for driving the photosensitive member 30 to move to achieve optical performance adjustment of the image capturing module.

In the embodiment of the present application, the photosensitive member 30 is mounted in the anti-shake driving assembly 20, for example, as shown in fig. 53 to 68, the anti-shake driving assembly 20 has a mounting groove 2110 located in a middle area thereof, and the photosensitive member 30 is mounted in the anti-shake driving assembly 20 in such a manner as to be received in the mounting groove 2110, so that the anti-shake driving assembly 20 can carry the photosensitive member 30 to move along a predetermined direction when being driven, for example, to perform optical anti-shake or the like, so as to achieve adjustment of optical performance of the camera module. Also, the optical lens 10 is held on the photosensitive path of the photosensitive assembly 30, for example, the optical lens 10 is mounted on the anti-shake driving assembly 20 in such a manner as to be fixed to the top surface of the anti-shake driving assembly 20 in such a manner that the optical lens 10 is held on the photosensitive path of the photosensitive assembly 30, so that the photosensitive assembly 30 can receive light projected from the optical lens 10 for imaging.

More specifically, as shown in fig. 53 to 55, the optical lens 10 includes a lens barrel 11 and a lens group mounted in the lens barrel 11, wherein the lens group includes at least one optical lens 12, and the number of the at least one optical lens 12 is not limited.

It should be noted that, in some examples of this specific example, the lens driving portion 14 further includes a lens focusing portion, and the lens focusing portion is adapted to drive the optical lens 10 to translate in the Z-axis direction, so as to adjust the distance between the optical lens 10 and the photosensitive assembly 30, so as to implement the focusing function of the optical lens 10. Also, in some embodiments of this specific example, the lens driving part 14 may further include a lens anti-shake part adapted to drive the optical lens 10 to translate in X-axis and Y-axis directions and/or rotate around Z-axis directions to achieve translational anti-shake and/or rotational anti-shake of the optical lens 10; or the lens anti-shake part is adapted to drive the optical lens 10 to rotate in the X-axis direction and in the Y-axis direction to realize tilt anti-shake of the optical lens 10. Note that the lens driving section 14 may include only the lens focusing section or the lens anti-shake section; the lens driving part 14 may also include both the lens focusing part and the lens anti-shake part, so that the lens driving part 14 may realize not only a lens focusing function but also a lens anti-shake function.

As shown in fig. 56, in the embodiment of the present application, the photosensitive assembly 30 includes a circuit board 31, a photosensitive chip 32, an electronic component 33, a base 34, and a filter element 35. The photosensitive chip 32 is disposed on the circuit board 31 and electrically connected to the circuit board 31, for example, the photosensitive chip 32 is mounted on the circuit board 31 and electrically connected to the circuit board 31, wherein the base 34 is disposed on the circuit board 31 and located at a peripheral side of the photosensitive chip 32, and the filter element 35 is held on a photosensitive path of the photosensitive chip 32 so as to be mounted on the base 34. The photosensitive chip 32 includes a photosensitive region and a non-photosensitive region surrounding the photosensitive region, wherein the photosensitive region is composed of a pixel array for receiving and sensing imaging light from the outside and converting optical signals into electrical signals.

As shown in fig. 57 to 68, in the embodiment of the present application, the anti-shake driving assembly 20 includes an anti-shake movable portion 21, an anti-shake driving portion 22, an anti-shake fixing portion 23, a pre-pressing device 24, a guiding device 25 and a driving substrate 26, wherein the anti-shake movable portion 21 is adapted to mount the photosensitive assembly 30 thereon, the anti-shake movable portion 21 is movable relative to the anti-shake fixing portion 23, the anti-shake driving portion 22 is disposed between the anti-shake fixing portion 23 and the anti-shake movable portion 21, and the anti-shake driving portion 22 is frictionally coupled to the anti-shake movable portion 21, so as to drive the anti-shake movable portion 21 to move relative to the anti-shake fixing portion 23 through a friction driving force provided by the anti-shake driving portion 22, and in this way, the photosensitive assembly 30 is driven to move, thereby realizing adjustment of the optical performance of the camera module.

Also, in the embodiment of the present application, in the second portion 2302 of the accommodating cavity 230, the driving substrate 26 is electrically connected to the anti-shake driving portion 22, so as to conduct the circuit of the anti-shake driving assembly 20, and the pre-compression device 24 maintains the frictional coupling between the anti-shake driving portion 22 and the anti-shake movable portion 21 through the pre-compression generated by the pre-compression device. In the first portion 2301 of the receiving chamber 230, the guide device 25 is used to guide the movement of the anti-shake movable portion 21.

More specifically, in the embodiment of the present application, the anti-shake movable portion 21 has a second mounting surface 2111 adapted to mount the photosensitive assembly 30 thereon, wherein the anti-shake fixing portion 23 is positioned, the anti-shake movable portion 21 is a mover, and the anti-shake movable portion 21 is capable of translating in the X-axis direction and the Y-axis direction and/or rotating around the Z-axis direction under the driving of the anti-shake driving portion 22, so as to implement the translational anti-shake and/or rotational anti-shake function of the photosensitive assembly 30. In particular, in the embodiment of the present application, the anti-shake fixing portion 23 has a first mounting surface 2303 adapted to mount the driving substrate 26 thereon, wherein the first mounting surface 2303 and the second mounting surface 2111 have a height difference such that the wiring board 31 of the photosensitive assembly 30 and the driving substrate 26 extend from different heights of the anti-shake driving assembly 20, thereby avoiding interference of the movement of the photosensitive assembly by the driving substrate 26.

In particular, since the anti-shake driving section 22 uses a special driver as the driving element, the number of the anti-shake movable sections 21 is one, that is, only one of the anti-shake movable sections 21 is required to perform a translational motion in the X-axis direction and the Y-axis direction and/or a rotational motion about the Z-axis direction under the driving of the anti-shake driving section 22.

As shown in fig. 57 and 58, in the embodiment of the present application, the anti-shake movable portion 21 includes a carrier body 211, a carrier extension arm 212, and a friction plate 213. The carrier body 211 forms the seating groove 2110 for mounting the photosensitive assembly 30 therein, and an inner bottom surface of the seating groove 2110 forms the second mounting surface 2111, wherein the photosensitive assembly 30 is fixed in the seating groove 2110 in such a manner as to be attached to the second mounting surface 2111 so that the photosensitive assembly 30 can be moved by the chip anti-shake movable portion 21. That is, in an embodiment of the present application, the second mounting surface 2111 is located at the first portion 2301 of the receiving cavity 230.

Preferably, in the embodiment of the present application, the carrier body 211 has a slot 2112 formed on a sidewall thereof, so that the circuit board 31 of the photosensitive assembly 30 can be protruded through the slot 2112 and extended to the main board of the electronic device. That is, in the embodiment of the present application, the carrier body 211 has a door formed at a side portion thereof to allow the wiring board 31 of the photosensitive assembly 30 to pass through and protrude out of the anti-shake driving assembly 20 through the door.

As shown in fig. 57 and 58, in an embodiment of the present application, the carrier extension arm 212 extends outwardly from the carrier body 211, e.g., the carrier extension arm 212 integrally extends outwardly from the carrier body 211. In particular, in the embodiment of the present application, the carrier extension arm 212 has a certain height difference from the bottom surface of the carrier body 211, that is, the carrier extension arm 212 does not extend at the same height as the carrier body 211. More specifically, in embodiments of the present application, the carrier extension arm 212 has a height that is greater than the height of the carrier body 211, and the carrier extension arm 212 extends upwardly and outwardly from the carrier body 211. Here, "upward" as referred to in the present application means from the image side to the object side, and "outward" means a direction away from the optical axis. The carrier extension arm 212 having a height difference is matched with the carrier main body 211 and the anti-shake fixing portion 23 to form a receiving space along the Z-axis direction, and the receiving space can be used for receiving the anti-shake driving portion 22, so that the structure of the camera module is more compact.

As shown in fig. 57 and 58, in the embodiment of the present application, the friction plate 213 is disposed on the carrier extension arm 212, for example, the friction plate 213 is integrally formed on the carrier extension arm 212, but of course, the friction plate 213 and the carrier extension arm 212 may be separate, for example, the friction plate 213 is a separate component, and is attached to the carrier extension arm 212 by an adhesive. Preferably, the friction plate 213 is provided at a side of the carrier extension arm 212 facing the anti-shake driving section 22, that is, at a lower surface of the carrier extension arm 212. Accordingly, in the embodiment of the present application, the friction plate 213 is interposed between the anti-shake movable portion 21 and the anti-shake driving portion 22 so that the anti-shake movable portion 21 is frictionally coupled to the carrier extension arm 212 by the anti-shake driving portion 22 and the pre-compression device 24. It should be understood that the friction plate 213 functions to increase the friction between the anti-shake driving section 22 and the anti-shake movable section 21.

Further, as shown in fig. 57 and 58, in the embodiment of the present application, the carrier extension arm 212 has two U-shaped grooves formed at opposite sides, respectively, wherein the anti-shake movable portion 21 can be clamped by the U-shaped grooves during the installation of the anti-shake movable portion 21, so that the installation is facilitated.

As shown in fig. 57 to 59, in a specific example of the present application, the anti-shake fixing portion 23 includes an upper cover 231 and a base 232 that are fastened to each other, wherein the accommodating cavity 230 is formed between the upper cover 231 and the base 232, and the accommodating cavity 230 is used for accommodating the anti-shake movable portion 21, the anti-shake driving portion 22, the pre-pressing device 24, the guiding device 25 and the driving substrate 26 therein, so that not only the impact damage of each element in the anti-shake driving assembly 20 can be protected, but also dust, dirt or stray light can be prevented from entering the inside of the anti-shake driving assembly 20.

Also, in the embodiment of the present application, the first installation surface 2303 is formed on the inner bottom surface of the base 232, that is, the first installation surface 2303 is located at the second portion 2302 of the receiving chamber 230. It should be noted that in the embodiment of the present application, the first mounting surface 2303 and the second mounting surface 2111 are located at the first portion 2301 and the second portion 2302 of the housing 230, respectively, in such a manner that, when the photosensitive assembly 30 is mounted to the second mounting surface 2111, the wiring board 31 of the photosensitive assembly 30 can protrude from the first portion 2301 and the driving substrate 26 can protrude from the second portion 2302. That is, in the embodiment of the present application, the driving substrate 26 and the circuit board 31 can extend out of the anti-shake driving assembly 30 from different portions of the housing cavity 230 to avoid the driving substrate 26 from interfering with the movement of the photosensitive assembly 30.

Further, as shown in fig. 60 to 66, in the embodiment of the present application, the anti-shake driving portion 22 is disposed between the anti-shake movable portion 21 and the anti-shake fixing portion 23, preferably, the anti-shake driving portion 22 is disposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23, that is, the anti-shake driving portion 22 is disposed at the second portion 2302 of the accommodating cavity 230. The anti-shake driving part 22 is mounted on the anti-shake fixing part 23, and then is in frictional contact with the anti-shake movable part 21 to drive the anti-shake movable part 21 to translate in the X-axis direction and the Y-axis direction and/or rotate around the Z-axis direction by the anti-shake driving part 22. It should be noted that, in the embodiment of the present application, the anti-shake driving portion 22 is disposed at a side portion of the carrier body 211 of the anti-shake movable portion 21, that is, the anti-shake driving portion 22 is disposed in the accommodating space formed by the carrier extension arm 212 and the base 232, so as to avoid increasing the height of the anti-shake driving assembly 20.

As shown in fig. 61, the piezoelectric actuator includes a piezoelectric ceramic plate 223 and a friction driving part 224, and after the piezoelectric actuator is powered, the piezoelectric ceramic plate 223 of the piezoelectric actuator changes its surface shape, so as to drive the friction driving part 224 to reciprocate in a unidirectional yaw along the X-axis direction and/or the Y-axis direction, and further drive the friction plate 213 to move due to the frictional contact between the friction driving part 224 and the friction plate 213.

In an example of the present application, the piezoelectric actuator may implement a surface profile change in a length direction or a width direction thereof, respectively, that is, the piezoelectric actuator may selectively perform a surface profile change in a length direction or a width direction thereof. When the piezoelectric actuator is arranged along the X-axis direction, the length direction of the piezoelectric actuator is along the X-axis direction, and the width direction of the piezoelectric actuator is along the Y-axis direction; when the piezoelectric actuator is arranged along the Y-axis direction, the length direction is along the Y-axis direction, and the width direction is along the X-axis direction. Compared with the prior piezoelectric motor which can only realize one-direction driving, the piezoelectric actuator can generate different waveforms to move along X, Y directions, and can also realize Z-axis rotation by utilizing the cooperation of the first piezoelectric actuator 221 and the second piezoelectric actuator 222. In addition, the height of the piezoelectric actuator is 0.7 mm-0.9 mm, and the piezoelectric actuator can be hidden in the anti-shake driving assembly 20 to reduce the height of the anti-shake driving assembly 20.

Specifically, in an example of the present application, the first friction driving part 2212 is positioned below the friction plate 213 and is in frictional contact with the friction plate 213. Preferably, in the initial state, the first friction driving part 2212 is positioned at a middle position of the friction plate 213, and the friction plate 213 may be translated in the X-axis direction and the Y-axis direction and/or rotationally moved around the Z-axis direction by the anti-shake driving part 22. It should be understood that, in other examples of the present application, the first friction driving portion 2212 may be located at other positions of the friction plate 213, for example, at an end of the friction plate 213 in the initial state, which is not limited to the present application. And, more preferably, the area of the friction plate 213 is larger than the driving stroke of the first piezoelectric actuator 221.

Further, the first piezoelectric actuator 221 generates deformation in a first direction (for example, a positive direction of the X-axis direction), the second piezoelectric actuator 222 generates deformation in a second direction (for example, a negative direction of the X-axis direction), that is, the first friction driving part 2212 generates driving force in the positive direction, and the second friction driving part 2222 generates driving force in the negative direction, so that the anti-shake movable part 21 and the photosensitive assembly 30 are driven by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to perform rotational movement about the Z-axis direction.

As shown in fig. 63 and 66, in the anti-shake driving assembly 20, the pre-pressing device 24 provides pre-pressing force between the anti-shake driving portion 22 and the anti-shake movable portion 21 so that the friction driving portion 224 of the anti-shake driving portion 22 can be frictionally coupled to the anti-shake movable portion 21 to drive the anti-shake movable portion 21 to move in the driving direction by friction.

Specifically, as shown in fig. 63 and 66, the pre-compression device 24 includes a first elastic element 241 and a second elastic element 242. The first elastic element 241 is disposed between the first piezoelectric ceramic plate 2211 of the first piezoelectric actuator 221 and the base 232, so that the first piezoelectric actuator 221 is disposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23 in a clamped manner by the elastic force of the first elastic element 241, that is, such that the first friction driving portion 2212 of the first piezoelectric actuator 221 abuts against the carrier extension arm 212 of the anti-shake movable portion 21, in such a manner that the first piezoelectric actuator 221 is frictionally coupled to the anti-shake movable portion 21. The second elastic element 242 is disposed between the second piezoelectric ceramic plate 2221 of the second piezoelectric actuator 222 and the base 232, so that the second piezoelectric actuator 222 is interposed between the carrier extension arm 212 of the anti-shake movable portion 21 and the base 232 of the anti-shake fixing portion 23 by the elastic force of the second elastic element 242, that is, such that the second friction driving portion 2222 of the second piezoelectric actuator 222 abuts against the carrier extension arm 212 of the anti-shake movable portion 21, in such a manner that the second piezoelectric actuator 222 is frictionally coupled to the anti-shake movable portion 21.

It should be understood that in this embodiment, the pre-compression device 24 is provided to the base 232, the pre-compression device 24 generates a pre-compression force in the Z-axis direction, which can hold the friction driving part 224 of the anti-shake driving part 22 in frictional contact with the friction plate 213 of the anti-shake movable part 21, and which can also hold the guide device 25 sandwiched between the upper cover 231 and the carrier extension arm 212 of the anti-shake movable part 21, wherein the pre-compression force direction is perpendicular to the driving force direction.

As shown in fig. 64 to 66, in order to improve the stability of the movement of the camera module during the optical anti-shake process and improve the imaging quality, a guide device 25 is provided between the upper cover 231 and the anti-shake movable portion 21, so that the anti-shake movable portion 21 is always supported during the movement of the anti-shake movable portion 21 relative to the anti-shake fixing portion 23 during the optical anti-shake process, so that the anti-shake movable portion 21 can slide smoothly. That is, in the embodiment of the present application, the anti-shake driving assembly 20 further includes a guide means 25 provided between the upper surface of the carrier extension arm 212 and the upper cover 231, the guide means 25 being adapted to guide the anti-shake movable portion 21 to move in the XOY plane set by the X axis and the Y axis.

Further, as shown in fig. 57 to 67, in the embodiment of the present application, the driving substrate 26 is disposed between the anti-shake driving section 22 and the base 232. Specifically, as shown in fig. 57, a set of positioning points 2321 is provided on the bottom surface of the base 232, and the driving substrate 26 is fixed on the base 232 by the positioning points 2321 of the base 232.

In particular, in the embodiment of the present application, the first mounting surface 2303 is formed on the inner bottom surface of the base 232, and the base 232 has an opening 2320 formed on the sidewall thereof, and the connection terminal 263 protrudes through the opening 2320 and is electrically connected to the motherboard of the electronic device. As described above, in the embodiment of the present application, the photosensitive assembly 30 mounted on the second mounting surface 2111 is adapted to protrude from the slot 21122112 of the anti-shake movable portion 21 into the receiving cavity 230, and the driving substrate 26 mounted on the first mounting surface 2303 is adapted to protrude from the opening 2320 of the base 232 into the receiving cavity 230, so that the wiring board 31 of the photosensitive assembly 30 and the driving substrate 26 can protrude from different heights of the anti-shake driving assembly 20, for example, the driving substrate 26 mounted on the first mounting surface 2303 is set to protrude from a first height of the anti-shake driving assembly 20, and the wiring board 31 of the photosensitive assembly 30 mounted on the second mounting surface 2111 is set to protrude from a second height of the anti-shake driving assembly 20.

Preferably, the circuit board 31 and the connection end 263 extend from the same side of the anti-shake driving assembly 20, that is, the slot 2112 of the base 232 and the opening 2320 of the anti-shake movable portion 21 are disposed on the same side, for example, the driving substrate 26 protrudes from the first side of the anti-shake driving assembly 20, and the circuit board 31 of the photosensitive assembly 30 is adapted to protrude from the first side of the anti-shake driving assembly, so that the circuit board 31 and the connection end 263 are electrically connected to the motherboard of the electronic device from the same side of the anti-shake driving assembly 20. The anti-shake movable portion 21 is disposed above the base 232, the circuit board 31 is disposed above the driving substrate 26, and a certain gap is formed between the circuit board 31 and the connection end 263 of the driving substrate 26 along the height direction, so that the circuit board 31 can not contact with the driving substrate 26 during movement, thereby affecting the optical anti-shake effect. The gap may range from 0.1mm to 0.15mm, or the opening 2320 and the slot 2112 may have a height difference of 0.1mm to 0.15mm, or the first mounting surface 2303 and the second mounting surface 2111 may have a height difference of 0.1mm to 0.15mm.

Of course, in other examples of the present application, the driving substrate 26 and the circuit board 31 may also be electrically connected to the motherboard of the electronic device by extending from different sides of the anti-shake driving assembly 20, that is, the opening 2320 of the side wall of the base 232 and the anti-shake movable portion 21 may be disposed on different sides, such as opposite sides or adjacent sides, so that the movement of the circuit board 31 is not affected. For example, the drive substrate 26 may protrude from a first side of the anti-shake drive assembly 20, and the wiring board 31 of the photosensitive assembly 30 may be adapted to protrude from a second side of the anti-shake drive assembly 20, wherein the first side is adjacent to the second side or the first side is opposite to the second side.

Fig. 67 illustrates a modified embodiment of the anti-shake driving assembly 20 according to the embodiment of the application, in which, as shown in fig. 67, unlike the above-described embodiment, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 may also be disposed relatively parallel in the Y-axis direction, that is, the length directions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are in the Y-axis direction, that is, the width directions of the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are in the Y-axis direction.

Fig. 68 illustrates another modified embodiment of the anti-shake driving assembly 20 according to the embodiment of the application, in which, as shown in fig. 68, unlike the above-described embodiment, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 are disposed perpendicular to each other, i.e., the length direction of the first piezoelectric actuator 221 is along the X-axis direction, and the width direction is along the Y-axis direction; the second piezoelectric actuator 222 has a length along the Y-axis direction and a width along the X-axis direction. The first piezoelectric actuator 221 and the second piezoelectric actuator 222 are located on adjacent sides of the drive assembly 20.

Exemplary camera Module

Specifically, in the embodiment of the present application, the anti-shake fixing portion 23 has a receiving cavity, and the anti-shake movable portion 21 and the anti-shake driving portion 22 are received in the receiving cavity of the anti-shake fixing portion 23, that is, in the embodiment of the present application, the anti-shake fixing portion 23 may receive the anti-shake movable portion 21 and the anti-shake driving portion 22 therein. And, the top surface of the anti-shake fixing portion 23 is used to set the optical lens 10 so that the optical lens 10 can be disposed on the photosensitive path of the photosensitive assembly 30 through the anti-shake fixing portion 23. The pre-compression device 24 is disposed between the anti-shake fixing portion 23 and the anti-shake driving portion 22, and the pre-compression device 24 maintains frictional coupling between the anti-shake driving portion 22 and the anti-shake movable portion 21 by the pre-compression force generated by the pre-compression device. The guiding device 25 is disposed between the anti-shake movable portion 21 and the anti-shake fixing portion 23, and the anti-shake movable portion 21 is suspended in the anti-shake fixing portion 23 by the guiding device 25, so as to provide guidance for movement of the chip anti-shake movable portion 21. The driving substrate 26 is electrically connected to the anti-shake driving portion 22, and is used for conducting a circuit of the anti-shake driving assembly 20.

Accordingly, in the embodiment of the present application, the first piezoelectric actuator 221 includes a first piezoelectric ceramic plate 2211 and a first friction driving portion 2212. The first piezoelectric ceramic plate 2211 is composed of a very small piezoelectric ceramic, and after the first piezoelectric ceramic plate 2211 is electrically excited, the first piezoelectric ceramic plate 2211 is adapted to be deformed by an inverse piezoelectric effect of the first piezoelectric ceramic plate 2211, so that the first friction driving portion 2212 on the first piezoelectric ceramic plate 2211 moves along therewith. In the present application, the first piezoelectric ceramic plate 2211 is fixedly disposed on the base 232, and the first friction driving part 2212 faces the friction plate 213 on the anti-shake movable part 21, and the first friction driving part 2212 maintains frictional contact with the friction plate 213, so that the first friction driving part 2212 can drive the friction plate 213 to move.

Specifically, in an example of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 deform in the longitudinal direction and then deform in the width direction, and the anti-shake movable portion 21 moves in the X-axis direction and then moves in the Y-axis direction under the driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222, in such a manner that the anti-shake movable portion 21 can move in the plane in which XOY is located. In particular, in the embodiment of the present application, although the first piezoelectric actuator 221 and the second piezoelectric actuator 222 can generate the deformation in the width or length direction to provide the driving force in two directions, it is worth mentioning that the driving force provided by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 is limited to the length direction and the width direction, that is, limited to the X-axis direction and the Y-axis direction only, so that when the photosensitive assembly 30 needs to be driven to travel in a certain oblique direction for optical anti-shake, it must first move along the X-axis direction and then move along the Y-axis direction (of course, may also move along the Y-axis direction and then move along the X-axis direction) and cannot directly move along the oblique direction, which is an important difference from the conventional anti-shake by the VCM motor, as shown in fig. 17.

Further, the first piezoelectric actuator 221 generates a deformation in a positive direction along the X-axis direction, the second piezoelectric actuator 222 generates a deformation in a negative direction along the X-axis direction, that is, the first friction driving part 2212 generates a driving force in a positive direction along the X-axis direction, and the second friction driving part 2222 generates a driving force in a negative direction along the X-axis direction, so that the anti-shake movable part 21 and the photosensitive assembly 30 realize a rotational motion about the Z-axis direction in the driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222.

In another example of the present application, the first piezoelectric actuator 221 and the second piezoelectric actuator 222 first deform in a width direction and then deform in a length direction, and the anti-shake movable portion 21 is driven by the first piezoelectric actuator 221 and the second piezoelectric actuator 222 to move in the Y axis direction and then move in the X axis direction, so that the anti-shake movable portion 21 can move in a plane in which XOY is located. The first piezoelectric actuator 221 generates a deformation in a positive direction along the X-axis direction, the second piezoelectric actuator 222 generates a deformation in a negative direction along the X-axis direction, that is, the first friction driving part 2212 generates a driving force in a positive direction along the X-axis direction, and the second friction driving part 2222 generates a driving force in a negative direction along the X-axis direction, so that the anti-shake movable part 21 and the photosensitive assembly 30 perform a rotational motion about the Z-axis direction in the driving of the first piezoelectric actuator 221 and the second piezoelectric actuator 222.

Anti-shake method for schematic camera module

Accordingly, according to another aspect of the present application, as shown in fig. 16, there is also provided an anti-shake method of an image capturing module, including the steps of: s110, simultaneously driving a first piezoelectric actuator and a second piezoelectric actuator of an anti-shake driving part to actuate a photosensitive assembly arranged on an anti-shake movable part to move along a first direction; and S120, driving the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving part to actuate the photosensitive assembly installed on the anti-shake movable part to move along the first direction.

As described above, in the embodiment of the present application, the first piezoelectric actuator and the second piezoelectric actuator are traveling wave type piezoelectric actuators, which are capable of generating two types of deformation and generating two directions of driving force. Specifically, the first piezoelectric actuator and the second piezoelectric actuator may be deformed along their length directions to generate driving forces along the length directions, or deformed along their width directions to generate driving forces along the width directions.

However, although the first and second piezoelectric actuators are capable of generating driving forces in two directions, the driving forces provided by the first and second piezoelectric actuators are limited to the length direction and the width direction, that is, to the X-axis direction and the Y-axis direction, and thus, when it is required to drive the photosensitive member to travel in a certain oblique direction for optical anti-shake, it must be moved first in the X-axis direction and then in the Y-axis direction (of course, it may be moved first in the Y-axis direction and then in the X-axis direction) without being directly moved in the oblique direction, which is an important difference from the conventional anti-shake by the VCM motor, as shown in fig. 17.

More specifically, in the anti-shake method of the camera module according to the present application, the first piezoelectric actuator and the second piezoelectric actuator are disposed parallel to each other on opposite sides of the photosensitive member. In a specific example of the present application, the first piezoelectric actuator and the second piezoelectric actuator are disposed on opposite sides of the photosensitive assembly in parallel with each other with the X axis as symmetry, and the first direction is an X axis direction and the second direction is a Y axis direction. Specifically, the first piezoelectric actuator and the second piezoelectric actuator have rectangular structures, wherein the length direction of the first piezoelectric actuator and the second piezoelectric actuator is the X-axis direction, and the width direction of the first piezoelectric actuator and the second piezoelectric actuator is the Y-axis direction.

Accordingly, in this specific example, step S110, simultaneously driving the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving section to actuate the photosensitive assembly mounted to the anti-shake movable section to move first in the first direction, includes: driving the first piezoelectric actuator to deform along the length direction of the first piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and driving a photosensitive assembly arranged on the anti-shake movable part to move along the first direction; and driving the second piezoelectric actuator to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and driving the photosensitive assembly mounted on the anti-shake movable part to move along the first direction.

Accordingly, in this specific example, step S120 of simultaneously driving the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving part to actuate the photosensitive member mounted to the anti-shake movable part to move in the second direction, includes: driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable part to move along the second direction, so as to drive the photosensitive assembly arranged on the anti-shake movable part to move along the second direction; and driving the second piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable part to move along the second direction, so as to drive the photosensitive assembly mounted on the anti-shake movable part to move along the second direction.

In another specific example of the present application, the first piezoelectric actuator and the second piezoelectric actuator are disposed on opposite sides of the photosensitive assembly in parallel with each other with the Y axis as symmetry, and the first direction is a Y axis direction and the second direction is an X axis direction. Specifically, the first piezoelectric actuator and the second piezoelectric actuator have a rectangular structure, wherein a length direction of the first piezoelectric actuator and the second piezoelectric actuator is the Y-axis direction, and a width direction of the first piezoelectric actuator and the second piezoelectric actuator is the X-axis direction.

Accordingly, in this specific example, step S110, simultaneously driving the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving section to actuate the photosensitive assembly mounted to the anti-shake movable section to move first in the first direction, includes: driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable portion to move along the first direction so as to drive a photosensitive assembly mounted on the anti-shake movable portion to move along the first direction; and driving the second piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable portion to move along the first direction, so as to drive the photosensitive assembly mounted on the anti-shake movable portion to move along the first direction.

Accordingly, in this specific example, step S120 of simultaneously driving the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving part to actuate the photosensitive member mounted to the anti-shake movable part to move in the second direction, includes: driving the first piezoelectric actuator to deform along the length direction of the first piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and driving a photosensitive assembly arranged on the anti-shake movable part to move along the second direction; and driving the second piezoelectric actuator to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and driving the photosensitive assembly mounted on the anti-shake movable part to move along the second direction.

Anti-shake method for schematic camera module

According to another aspect of the present application, as shown in fig. 18, there is also provided an anti-shake method of an image capturing module, including: s210, driving a first piezoelectric actuator of the anti-shake driving part to actuate a photosensitive assembly mounted on the anti-shake movable part to move along a first direction; and S220, simultaneously driving a second piezoelectric actuator of the anti-shake driving part to actuate the photosensitive assembly mounted on the anti-shake movable part to move along a second direction, wherein the first direction and the second direction are parallel and opposite to each other so as to drive the photosensitive assembly to rotate through the first piezoelectric actuator and the second piezoelectric actuator.

In the embodiment of the application, the first piezoelectric actuator and the second piezoelectric actuator are traveling wave type piezoelectric actuators, which can generate two types of deformation and generate driving forces in two directions. Specifically, the first piezoelectric actuator and the second piezoelectric actuator may be deformed along their length directions to generate driving forces along the length directions, or deformed along their width directions to generate driving forces along the width directions.

More specifically, in the anti-shake method of the camera module according to the present application, the first piezoelectric actuator and the second piezoelectric actuator are disposed parallel to each other on opposite sides of the photosensitive member. In a specific example of the present application, the first piezoelectric actuator and the second piezoelectric actuator are disposed on opposite sides of the photosensitive member in parallel with each other with the X axis as symmetry, and preferably, the first piezoelectric actuator and the second piezoelectric actuator are disposed on opposite sides of the photosensitive member with the X axis as symmetry axis.

Accordingly, in this specific example, step S210 of driving the first piezoelectric actuator of the anti-shake driving section to actuate the photosensitive assembly mounted to the anti-shake movable section to move in the first direction includes: a first piezoelectric actuator for driving the anti-shake driving part to actuate the photosensitive assembly arranged on the anti-shake movable part to move along the positive direction of the X-axis direction along the first direction; and step S220 of simultaneously driving a second piezoelectric actuator of the anti-shake driving part to move the photosensitive assembly mounted to the anti-shake movable part in a second direction, including: the first piezoelectric actuator of the anti-shake driving part is driven to move in a negative direction of the X-axis direction along the first direction by actuating the photosensitive assembly mounted on the anti-shake movable part, and in this way, the photosensitive assembly is driven to rotate clockwise in the XOY plane. That is, in this specific example, the first direction is a positive direction of the X-axis direction, and the second direction is a negative direction of the X-axis direction, as shown in fig. 19.

Of course, in this specific example, the first direction is a negative direction of the X-axis direction, and the second direction is a positive direction of the X-axis direction, and by such a directional arrangement, the photosensitive assembly is driven to rotate counterclockwise in the XOY plane, as shown in fig. 19.

In another specific example of the present application, the first piezoelectric actuator and the second piezoelectric actuator are disposed parallel to each other on opposite sides of the photosensitive member with the Y axis as symmetry, and preferably, the first piezoelectric actuator and the second piezoelectric actuator are disposed symmetrically on opposite sides of the photosensitive member with the Y axis as symmetry axis.

In an embodiment of the present application, the first piezoelectric actuator and the second piezoelectric actuator have rectangular structures. In this specific example, as shown in fig. 19, the longitudinal direction of the first piezoelectric actuator and the second piezoelectric actuator is parallel to the X-axis direction. Accordingly, in this particular example, the steps are: a first piezoelectric actuator for driving an anti-shake driving part to actuate a photosensitive assembly mounted on an anti-shake movable part to move along a first direction, comprising: driving the first piezoelectric actuator to deform along the length direction thereof to actuate the anti-shake movable portion to move along the first direction so as to drive a photosensitive assembly mounted on the anti-shake movable portion to move along the first direction, and the steps of: simultaneously driving a second piezoelectric actuator of the anti-shake driving part to move the photosensitive assembly mounted to the anti-shake movable part in a second direction, comprising: and meanwhile, the second piezoelectric actuator is driven to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and thus the photosensitive assembly arranged on the anti-shake movable part is driven to move along the second direction.

Accordingly, in this specific example, step S210 of driving the first piezoelectric actuator of the anti-shake driving section to actuate the photosensitive assembly mounted to the anti-shake movable section to move in the first direction includes: a first piezoelectric actuator for driving the anti-shake driving part to actuate the photosensitive assembly arranged on the anti-shake movable part to move along the positive direction of the Y-axis direction along the first direction; and step S220 of simultaneously driving a second piezoelectric actuator of the anti-shake driving part to move the photosensitive assembly mounted to the anti-shake movable part in a second direction, including: the first piezoelectric actuator of the anti-shake driving part is driven to move in a negative direction of the Y-axis direction along the first direction by actuating the photosensitive assembly mounted on the anti-shake movable part, and in this way, the photosensitive assembly is driven to rotate clockwise in the XOY plane. That is, in this specific example, the first direction is a positive direction of the Y-axis direction, and the second direction is a negative direction of the Y-axis direction, as shown in fig. 20.

Of course, in this specific example, the first direction is a negative direction of the Y-axis direction, and the second direction is a positive direction of the Y-axis direction, and by such a directional arrangement, the photosensitive assembly is driven to rotate counterclockwise in the XOY plane, as shown in fig. 20.

In an embodiment of the present application, the first piezoelectric actuator and the second piezoelectric actuator have rectangular structures. Further, in this specific example, as shown in fig. 20, the length directions of the first piezoelectric actuator and the second piezoelectric actuator are parallel to the Y-axis direction. Accordingly, in this particular example, the steps are: a first piezoelectric actuator for driving an anti-shake driving part to actuate a photosensitive assembly mounted on an anti-shake movable part to move along a first direction, comprising: driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable portion to move along the first direction so as to drive a photosensitive assembly mounted on the anti-shake movable portion to move along the first direction; and, the steps of: simultaneously driving a second piezoelectric actuator of the anti-shake driving part to move the photosensitive assembly mounted to the anti-shake movable part in a second direction, comprising: and simultaneously driving the second piezoelectric actuator to deform along the width direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and driving the photosensitive assembly arranged on the anti-shake movable part to move along the second direction.

In summary, an anti-shake method of an image capturing module according to an embodiment of the present application is described, in which the image capturing module is configured to implement optical anti-shake of the image capturing module in multiple directions by using a first piezoelectric actuator and a second piezoelectric actuator having special driving characteristics and matching with an anti-shake movable portion. In addition, the anti-shake method of the camera module can realize the rotation anti-shake of the camera module in the XOY plane through the first piezoelectric actuator and the second piezoelectric actuator with special driving characteristics and matching with one anti-shake movable part.

As shown in fig. 69 to 70, the image capturing module 100a according to some embodiments of the present application is implemented as a periscopic image capturing module including the zoom lens group 10a, the driving assembly 20a, the photosensitive assembly 30a, and the light turning element 40a. The inclusion of the zoom lens group 10a is also simply referred to as a lens in the following description. The light turning element 40a is configured to receive imaging light from a subject and turn the imaging light to the zoom lens group 10a. The zoom lens group 10a corresponds to the light turning element 40a, and is configured to receive the imaging light from the light turning element 40a and collect the imaging light, where the zoom lens group 10a is disposed on the photosensitive path of the photosensitive assembly 30 a. The photosensitive assembly 30a corresponds to the zoom lens group 10a, and is configured to receive imaging light from the zoom lens group 10a and perform imaging.

In some embodiments of the present application, the light turning element 40a is configured to turn the imaging light from the photographed object by 90 ° so that the overall height dimension of the variable-focus camera module 100a can be reduced. Here, in consideration of manufacturing tolerances, an angle at which the light turning element 40a turns the imaging light may have an error within 1 ° during actual operation, as will be understood by those skilled in the art.

In a specific example of the present application, the light turning element 40a may be implemented as a mirror (e.g., a planar mirror) or a light turning prism (e.g., a triangular prism). For example, when the light turning element 40a is implemented as a light turning prism, the light incident surface of the light turning prism is perpendicular to the light emitting surface thereof and the light reflecting surface of the light turning prism is inclined at an angle of 45 ° to the light incident surface and the light emitting surface, so that, after an imaging light enters the light turning prism perpendicularly to the light incident surface, the imaging light can be turned at 90 ° at the light reflecting surface and output perpendicularly to the light emitting surface.

Of course, in other embodiments of the present application, the light turning element 40a may also be implemented as other types of optical elements, and is not limited to this embodiment. Also, in some embodiments of the present application, the variable-focus camera module 100a may further include a greater number of light turning elements 40a, one of which is that: one function of introducing the light turning element 40a is to: the imaging light is turned to enable structural dimensional folding of the optical system of the variable focus camera module 100a having a longer Total optical length (TTL: total TRACK LENGTH). Accordingly, when the total optical length (TTL) of the variable-focus image capturing module 100a is too long, a larger number of light turning elements 40a may be disposed to meet the size requirement of the variable-focus image capturing module 100a, for example, the light turning elements 40a may be disposed on the image side of the variable-focus image capturing module 100a or between any two lenses in the zoom lens group 10 a.

As shown in fig. 69 to 70, in some embodiments of the present application, the zoom lens group 10a includes a fixed group 11a and an adjustable group. Here, the adjustable group includes, for example, a zoom group 12a and a focus group 13a. Obviously, the adjustable group may include other lens groups that need to be adjusted, and the number and types thereof may be set as needed, and are not limited to the examples herein. For example, the adjustable group may include only one zoom group 12a, only one focus group 13a, or any number of combinations of focus groups 13a and zoom groups 12 a. Optionally, separate drive carriers and drive elements are provided for each adjustable lens group, whereby each lens group is adjusted independently of the other.

Note that the broken lines in fig. 69 to 70 represent the optical axes of light beams propagating in the image pickup module 100 a. The drive carrier is used for carrying an adjustable group of lenses, and is thus capable of being driven to adjust and move along the optical axis. It is to be noted that here the adjustment direction, the driving direction and the optical axis direction are coincident. In the following description, the direction along the optical axis, along the driving direction, is thus also referred to as along the adjustment direction, i.e. the adjustment direction of the driving carrier, is the same as the optical axis as an azimuth reference. For the same reason, the geometric axis of the drive carrier also coincides with the optical axis and with the adjustment direction. Hereinafter, the directions in which these terms are used are technically equivalent unless otherwise indicated.

The fixed group 11a includes a first lens barrel 111a and at least one optical lens 112a accommodated in the first lens barrel 111 a. In some embodiments of the present application, the fixed group 11a is adapted to be fixed to a non-moving part of the driving assembly 20a, i.e. the position of the fixed group 11a in the zoom lens group 10a is kept constant, and the fixed group 11a does not undergo a positional movement when the variable focus camera module 100a performs an optical focusing and/or an optical zooming function. It should be noted that, in other embodiments of the present application, the fixed group 11a may not be provided with the first lens barrel 111a, and it includes only at least one optical lens 112a, for example, it includes only a plurality of optical lenses 112a that are mutually embedded. That is, in other embodiments of the application, the fixed group 111a may be implemented as a "bare lens". The number of the fixed groups 11a is at least one.

The zoom group 12a includes a second lens barrel 121a and at least one optical lens 122a accommodated in the second lens barrel 121a, wherein the zoom group 12a is adapted to be driven by the driving assembly 20a to move along an optical axis direction set by the zoom lens group 10a, so as to implement an optical zoom function of the variable-focus camera module 100a, so that the variable-focus camera module 100a can achieve clear photographing of photographed objects with different distances. It should be noted that, in other embodiments of the present application, the zoom group 12a may not be provided with the second lens barrel 121a, and it includes only at least one optical lens 122a, for example, it includes only a plurality of optical lenses 122a that are mutually embedded. That is, in other embodiments of the application, the zoom group 12a may also be implemented as a "bare lens". The number of the zoom groups 12a is at least one.

The focusing group 13a includes a third lens barrel 131a and at least one optical lens 132a accommodated in the third lens barrel 131a, wherein the focusing group 13a is adapted to be driven by the driving component 20a to move along the optical axis direction set by the zoom lens group 10a, so as to implement the focusing function of the variable-focus camera module 100 a. More specifically, the optical focusing achieved by driving the focusing group 13a can compensate for the focus shift caused by moving the zoom group 12a, thereby compensating for the imaging performance of the variable-focus camera module 100a so that the imaging quality thereof satisfies a preset requirement. It should be noted that, in other embodiments of the present application, the focusing group 13a may not be provided with the third lens barrel 131a, and it includes only at least one optical lens 132a, for example, it includes only a plurality of optical lenses 132a that are mutually embedded. That is, in other embodiments of the application, the focus group 13a may also be implemented as a "bare lens". The number of the focusing groups 13a is at least one.

In some embodiments of the present application, it is preferable that the fixed group 11a, the zoom group 12a, and the focusing group 13a are sequentially disposed along the optical axis direction in which the zoom lens group 10a is disposed (that is, in the zoom lens group 10a, the zoom group 12a is located between the fixed group 11a and the focusing group 13 a), that is, the imaging light from the light turning element 40a sequentially passes through the fixed group 11a, passes through the zoom group 12a, and then passes through the focusing group 13a when passing through the zoom lens group 10 a. The zoom group 12a and the focus group 13a may be respectively adjusted relative to the fixed group 11a under the driving of the driving component 20a, so as to adjust the optical performance of the variable-focus camera module 100a, including but not limited to optical focusing and optical zooming functions. Of course, in other embodiments of the present application, the relative positional relationship among the fixed group 1111a, the zoom group 12a and the focusing group 13a may be adjusted according to the optical design requirement and the structural design requirement of the variable-focus camera module 100a, for example: the fixed group 11a, the focusing group 13a, and the zooming group 12a are sequentially arranged along the optical axis direction in which the zooming lens group 10a is arranged, that is, the focusing group 13a is arranged between the fixed group 11a and the zooming group 12 a. Or the zoom group 12a, the fixed group 11a, and the focusing group 13a are sequentially arranged along the optical axis direction in which the zoom lens group 10a is arranged, that is, the fixed group 11a is arranged between the focusing group 13a and the zoom group 12 a. But in particular, in some embodiments of the present application, it is preferable that the focusing group 13a and the zooming group 12a are disposed adjacently in consideration of the structural design of the variable-focus camera module 100 a. That is, the positions of the respective portions in the zoom lens group 10a according to some embodiments of the present application are preferably configured to: the zoom group 12a is located between the fixed group 11a and the focus group 13a, or the focus group 13a is located between the fixed group 11a and the zoom group 12 a. It should be appreciated that the zoom group 12a and the focus group 13a are portions of the zoom lens group 10a that need to be moved, and thus, positioning the focus group 13a and the zoom group 12a adjacently is advantageous in that the drive assembly 20a is arranged in relation to the portions that will be developed in the detailed description of the drive assembly 20 a.

It should be further noted that, in the embodiment shown in fig. 70, the zoom lens group 10a is taken as an example and includes one fixed group 11a, one zoom group 12a and one focusing group 13a, but those skilled in the art will appreciate that, in other embodiments of the present application, the specific number of the fixed group 11a, the zoom group 12a and the focusing group 13a is selected, and is limited to this embodiment, which can be adjusted according to the optical design requirements of the variable-focus camera module 100 a.

To limit the imaging light entering the photosensitive assembly 30a, in some examples of the present application, the variable focus camera module 100a further includes a light blocking element (not shown) disposed on a photosensitive path of the photosensitive assembly 30a, wherein the light blocking element is capable of at least partially blocking imaging light projection to minimize the effect of stray light on the imaging quality of the variable focus camera module 100 a. Preferably, the light blocking element is disposed on the light incident surface or the light emergent surface of the light turning element 40 a.

As shown in fig. 69 and 70, in some embodiments of the present application, the photosensitive assembly 30a includes a circuit board 31a, a photosensitive chip 32a, an electronic component 33a, a base 34a, and a filter element 35a. The photosensitive chip 32a is disposed on the circuit board 31a and is electrically connected to the circuit board 31a. The base 34a is disposed on the circuit board 31a and located on the peripheral side of the photosensitive chip 32a, and the filter element 35a is mounted on the base 34a to be held on the photosensitive path of the photosensitive chip 32 a. The photosensitive chip 32a includes a photosensitive region and a non-photosensitive region surrounding the photosensitive region.

In one example of the present application, the photosensitive chip 32a is mounted on the upper surface of the wiring board 31a and electrically connected to the wiring board 31a by wire bonding. Of course, in other embodiments of the present application, the photosensitive chip 32a may be disposed on the circuit board 31a and/or electrically connected to the circuit board 31a in other manners, for example, flip-chip attached to the lower surface of the circuit board 31a, which is not limited to this embodiment. It should be appreciated that in some embodiments of the present application, the photosensitive path of the photosensitive chip 32a forms the photosensitive path of the photosensitive assembly 30 a.

The base 34a is provided on the wiring board 31a to encapsulate the electronic device on the wiring board 31a and for supporting other components. In a specific example of the present application, the base is implemented as a separately molded plastic bracket that is attached to the surface of the wiring board 31a by an adhesive and is used to support other components. Of course, in other embodiments of the present application, the base can be formed on the circuit board 31a in other manners, for example, the base is implemented as a molded base integrally formed at a predetermined position of the circuit board 31a through a molding process, which is not limited to this embodiment.

In some embodiments of the present application, the filter element 35a is held in the light sensing path of the light sensing chip 32a for filtering the imaging light entering the light sensing chip 32 a. In a specific example, the filter element 35a is mounted on the base 34a and corresponds to at least a photosensitive region of the photosensitive chip 32a, in such a way that the filter element 35a is held on a photosensitive path of the photosensitive chip 32 a. It should be noted that in other embodiments of the present application, the filter element 35a can also be mounted on the base 34a in other manners, for example, a filter element 35a bracket is first provided on the base 34a, and then the filter element 35a is mounted on the filter element 35a bracket, that is, in this example, the filter element 35a can be indirectly mounted on the base 34a through other supports. In other embodiments of the present application, the filter element 35a may be mounted at other positions of the variable focal length imaging module 100a, for example, the filter element 35a may be formed in the zoom lens group 10a (for example, as a filter film attached to a surface of a certain optical lens of the zoom lens group 10 a), which is not limited to this embodiment.

As described above, according to the development trend of the high pixel, large chip and small size of the camera module, the driving assembly 20a for driving the focusing group 13a and the zooming group 12a of the zoom lens group 10a puts more technical demands. Mainly comprises the following steps: relatively greater driving force, and better driving performance (including, in particular, higher accuracy of driving control and longer driving stroke). Through researches and experiments, the inventor proposes a piezoelectric actuator with a novel structure, which can meet the technical requirements of the variable-focus camera module 100a on a driver. And, the piezoelectric actuator is further disposed in the variable-focus camera module 100a in a suitable arrangement so that it satisfies structural design requirements and dimensional design requirements of the variable-focus camera module 100 a.

According to one aspect of the present application, there is provided a driving assembly 20a for driving a lens, comprising:

A drive carrier 22a having a carrier body for carrying an adjustable group of lenses;

A driving element 21a for providing a driving force for moving the driving carrier in the adjustment direction;

And one end of the friction plate is fixedly connected with the carrier body of the driving carrier 22a, and the other end of the friction plate is in functional connection with the driving element 21a, so that the driving element 21a can drive the friction plate to move along the adjustment direction.

It should be noted that, in the driving assembly 20a proposed in the present application, one or more driving carriers 22a may be included, and in particular, each driving carrier 22a is respectively provided with a respective driving element 21a, so that each driving carrier 22a may respectively carry an adjustable group of lenses and may be individually driven by the associated driving element 21a to move along the adjustment direction, thereby implementing optical functions such as zooming or focusing. Accordingly, each individual drive element 21a is also individually associated with a corresponding component, including a friction plate, a friction mechanism 215a, a prestressing device 23a, a drive base 27a, a carrier 25a, etc. In the following description with reference to the drawings, the driving assembly 20a including two driving carriers, i.e., the first carrier 221a and the second carrier 222a, is described as an example, but this example does not constitute a limitation of the inventive concept. It will be apparent that the drive assembly 20a includes one, three or more drive carriers and that the structure, action and effect described below can be achieved. Likewise, the structures, compositions and features described below in connection with the first carrier 221a and the second carrier 222a are equally applicable to drive assemblies 20a comprising one, three or more drive carriers, and in particular the description given with respect to the first carrier 221a and its associated components is also equivalent to the case where the drive assembly 20a comprises only one drive carrier, and therefore will not be explained separately in the following description.

Fig. 71 is an exploded view of some embodiments of drive assembly 20a according to the present application. As shown in fig. 71, in some embodiments of the present application, the driving assembly 20a includes a driving element 21a, a driving carrier 22a, a pre-pressing device 23a, a guiding device 24a, a carrying mechanism 25a, a driving housing 26a, a driving substrate 27a, and a position sensing element 28a.

In the present application, the adjustable group of the zoom lens group 10a is disposed in the driving carrier 22a, and the driving carrier 22a is driven by the driving element 21a to move so as to drive the zoom lens group 10a to move, so as to implement the optical focusing and/or optical zooming functions of the variable-focus camera module 100 a. Here, the driving element 21a provides a driving force for moving the driving carrier 22a in the adjustment direction, that is, in the optical axis direction of the lens group.

The driving component 20a is configured to drive the zoom group 12a and the focus group 13a of the zoom lens group 10a, so that the distance between the zoom group 12a and the focus group 13a relative to the photosensitive chip 32a is adjusted, thereby implementing the optical focusing and/or the optical zooming function of the variable-focus camera module 100 a.

A friction plate is arranged between the driving element 21a and the carrier body of the driving carrier 22a, one end of the friction plate is fixedly connected with the carrier body of the driving carrier 22a, and the other end of the friction plate is in operative connection with the driving element 21a, so that the driving element 21a can drive the friction plate to move along the adjustment direction.

The drive assembly 20a further comprises pre-compression means 23a for providing pre-compression to the drive element 21a such that the drive element 21a is held in frictional contact with the friction plate under the effect of the pre-compression force. For example, the pre-compression device 23a may include an upper clamp 231a, a lower clamp 233a, and a connection portion connecting the upper and lower clamps 233a, and elastically clamps a friction plate and driving elements 21a and possible friction mechanisms 215a disposed at both sides of the friction plate between the upper and lower clamps 231a and 233a of the pre-compression device 23 a.

The driving assembly 20a further comprises a guiding device 24a, wherein the guiding device 24a is arranged on the driving carrier 22a, and the guiding device 24a controls the moving direction of the driving carrier 22a to realize the guiding function of the guiding device 24 a. For example, the guide means 24a is arranged in sliding connection with said drive carrier 22a, so that the drive carrier 22a can be moved along the guide means 24a under the drive of the drive element 21a. As an example, the guide means 24a comprise a guide rod which passes through the connection hole of the drive carrier 22a parallel to the adjustment direction, so that the drive carrier 22a can be moved along the guide means 24a under the drive of the drive element 21a. Obviously, the guiding means 24a may also be configured as other known sliding guiding structures, such as a rail, a guiding groove, etc.

The driving assembly 20a may further include a friction mechanism 215a disposed between the pre-compression device 23a and the friction plate, such that the friction plate is movably connected with the pre-compression device 23a through the friction mechanism 215a, wherein the pre-compression device 23a pushes the friction mechanism 215a against the friction plate. For example, a driving element 21a may be provided on one side of the friction plate, and the friction mechanism 215a may be provided on the opposite side of the friction plate such that the friction plate is clamped between the driving element 21a and the friction mechanism 215a by the pre-compression device 23a such that the friction plate is movable in the adjustment direction by the driving of the driving element.

The drive assembly 20a may further comprise a drive substrate 27a arranged between the pre-stressing means 23a and the drive element 21a for supplying an electric current to the drive element 21 a. For this purpose, the driving substrate 27a extends to the circuit board 31a of the photosensitive assembly 30a to realize the circuit conduction of the driving assembly 20 a. Furthermore, the drive base plate 27a can be clamped on the drive element 21a by the pre-stressing device 23 a.

The drive assembly 20a may also include a position sensing element 28a configured to sense the position of a moving part, such as the drive carrier 22a or the friction plate. Alternatively, the position sensing element 28a may be fixed on the driving substrate 27 a. Optionally, the second conductive end of the drive substrate 27a is provided with an extension extending inwardly towards the optical axis or drive carrier 22a and opposite the guiding means 24a based on a friction plate or a plane in which the friction plate lies. Wherein the position sensing element 28a is provided on the extension and a sensing magnet is provided on the friction plate opposite to the position of the position sensing element 28a.

The drive assembly 20a may also include a drive housing 26a that serves as an outer housing for the drive assembly 20a, enclosing the aforementioned components within the interior space of the housing. For example, the driving housing 26a may include an upper housing 261a and a lower housing 262a connected with the upper housing 261a in a closed structure. After the assembly is completed, the upper and lower cases 261a and 262a may be fixedly coupled and form a closed space.

The drive assembly 20a may also include a carrier 25a. For example, the bearing means 25a may be provided between the pre-compression device 23a and the drive housing 26a, so that not only can the drive element 21a, the drive carrier 22a and the pre-compression device 23a be supported, but also the drive element 21a, the pre-compression device 23a can be fixed to the drive housing 26a by the bearing means 25a.

For example, the pre-stressing device 23a can be arranged in a receiving space of the carrier 25a, for example by means of an elastic snap fit. The installation space is formed, for example, by a plurality of projecting positioning posts 251a of the support means 25 a. The precompression means 23a is thus located between the drive carrier 22a and the carrier means 25a, viewed transversely to the adjustment direction, and provides the drive element 21a with a precompression such that the drive element 21a can be held in frictional contact with the drive carrier 22a, in particular with a friction plate, under the effect of the precompression force.

In some embodiments, the drive carrier 22a further comprises a connection end protruding outwards from the carrier body of the drive carrier 22a, the connection end having a connection hole, the guiding means 24a comprising a guiding rod extending through the connection hole of the connection end of the drive carrier 22a parallel to the adjustment direction, so that the drive carrier 22a can be moved along the guiding means 24a under the drive of the drive element 21 a.

Specifically, the first carrier 221a includes a first connection end 22121a extending outwardly from the carrier body 2211a of the first carrier 221a and a second connection end 22122a extending outwardly from the carrier body 2211a of the first carrier 221a, wherein the first connection end 22121a and the second connection end 22122a are respectively located at opposite sides of the carrier body 2211a of the first carrier 221a, wherein the first connection end 22121a of the first carrier 221a has a first connection hole 221211a, the second connection end 22122a of the first carrier 221a has a second connection hole 221221a, and

The second carrier 222a further includes a first connection end 22221a extending outwardly from the carrier body 2221a of the second carrier 222a and a second connection end 22222a extending outwardly from the carrier body 2221a of the second carrier 222a, wherein the first connection end 22221a and the second connection end 22222a are respectively located at opposite sides of the carrier body 2221a of the second carrier 222a, wherein the first connection end 22221a of the second carrier 222a has a first connection hole 222211a, and the second connection end 22222a of the second carrier 222a has a second connection hole 222221a.

Wherein the guide means 24a comprises a first guide bar 241a and a second guide bar 242a, wherein the first guide bar 241a passes through the second connection hole 221221a of the second connection end 22122a of the first carrier 221a and the first connection hole 222211a of the first connection end 22221a of the second carrier 222a, and the second guide bar 242a passes through the first connection hole 221211a of the first connection end 22121a of the first carrier 221a and the second connection hole 222221a of the second connection end 22222a of the second carrier 222a, such that the first carrier 221a and the second carrier 222a can be individually moved along the first guide bar 241a and the second guide bar 242a of the guide means 24a under the driving of the first driving element and the second driving element, respectively, wherein the first guide bar 241a and the second guide bar 242a are arranged in parallel to each other along the adjustment direction.

According to some embodiments of the application, a structural space is formed between the drive element 21a and the carrier body of the drive carrier 22 a. Wherein a friction plate is provided in the structural space between the drive element 21a and the carrier body of the drive carrier 22a, and one end of the friction plate is fixedly connected to the carrier body of the drive carrier 22a, and the other end is operatively connected to the drive element 21a, so that the drive element 21a can drive the friction plate to move in the adjustment direction. The friction plate arranged in the installation space between the drive element and the carrier body of the drive carrier thus divides the installation space into a first installation space and a second installation space opposite the first installation space. The first installation space and the second installation space opposite the first installation space are embodied here, for example, as the upper and lower spaces of the friction plate in the drawing.

Specifically, the first carrier 221a and the second carrier 222a in the drawings are respectively described in detail below.

Fig. 72 is an exploded view of the drive carrier 22a and friction plate according to some embodiments of the application. For this purpose, the drive carrier 22a comprises, for example, a first carrier 221a and a second carrier 222a for carrying at least one adjustable group of lenses, for example a zoom group 12a and a focus group 13a, respectively, wherein the first carrier 221a and the second carrier 222a are arranged in sequence on the same axis in the adjustment direction and are movable independently of each other in said adjustment direction.

Specifically, as shown in fig. 73 to 75, the driving carrier 22a includes a first carrier 221a and a second carrier 222a, the first carrier 221a and the second carrier 222a are sequentially disposed along the optical axis direction of the zoom lens group 10a, and the first carrier 221a and the second carrier 222a are respectively driven by the first driving element 211a and the second driving element 212a to move along the optical axis direction or along the adjustment direction. For this, referring to fig. 79, the driving assembly 20a includes a first driving member 211a for providing a driving force for moving the first carrier 221a in the adjustment direction, and a second driving member 212a for providing a driving force for moving the second carrier 222a in the adjustment direction.

The zoom group 12a is mounted to the first carrier 221a, and the focus group 13a is mounted to the second carrier 222a. Of course, the focusing group 13a may be mounted on the first carrier 221a, and the zooming group 12a may be mounted on the second carrier 222a. In the application, the zoom group 12a and the focusing group 13a are respectively arranged on the two carriers, so that the interference of the zoom group 12a and the focusing group 13a in the moving process is avoided, and the optical zooming and/or optical focusing effects are further influenced.

The first carrier 221a includes a first carrier body 2211a and a connection end 2212a.

The first carrier body 2211a has a receiving cavity 22111a therein, and the receiving cavity 22111a can receive the focusing group 13a or the zooming group 12a therein.

The connection end 2212a of the first carrier 221a includes a first connection end 22121a disposed on a first side wall of the first carrier body 2211a and extending outward, and a second connection end 22122a disposed on a second side wall of the first carrier body 2211a and extending outward, where the first side wall and the second side wall of the first carrier body 2211a are respectively located at two opposite sides along the optical axis direction or along the adjustment direction.

The first connection end 22121a has a first connection hole 221211a formed therein to connect the guide 24a with the first carrier 221a therethrough.

The second connection end 22122a has a second connection hole 221221a formed therein to connect the guide device 24a with the first carrier 221a therethrough.

The second connection end 22122a also has a seating groove 221222a formed therein for seating the first friction plate 2213a.

In the example of the present application, the first connection hole 221211a and the second connection hole 221221a may be through hole structures or groove structures. Preferably, the first connection hole 221211a is a groove structure, and the second connection hole 221221a is a through hole structure.

In some embodiments of the present application, the first connection hole 221211a and the second connection hole 221221a have a certain height difference, the first connection hole 221211a is located at a lower end of the first carrier 221a, and the second connection hole 221221a is located at an upper end of the first carrier 221 a. The arrangement mode can provide a certain avoidance space or structural space for other elements in the driving assembly 20a, and fully utilizes the space position in the driving assembly 20a, so that the structure of the zoom camera module is more compact.

Of course, in other embodiments of the present application, the first connection hole 221211a and the second connection hole 221221a may have the same height, i.e. are disposed at the upper end or the lower end of the first carrier 221a. The first friction plate 2213a is disposed in the seating groove 221222a of the second connection end 22122 a.

The first friction plate 2213a and the first carrier 221a may be in an integral structure or a split structure, that is, the first friction plate 2213a may be integrally formed with the first carrier 221a, or may be embedded in the accommodating groove 221222a of the second connection end 22122a to be fixed with the first carrier 221 a.

The first friction plate 2213a has a cubic structure, that is, the first driving element 211a is in friction contact with a friction surface of the first friction plate 2213a, so as to drive the first friction plate 2213a to drive the first carrier 221a to move. Wherein the length of the friction surface of the first friction plate 2213a in the optical axis direction or in the adjustment direction is equal to or greater than the movement stroke of the first carrier 221a. In the present application, the number of the first connection holes 221211a is at least one, and the number of the second connection holes 221221a is at least one. For example, two second connection holes 221221a may be provided at a distance from each other. An outer wall of the second connection hole 221221a may form one inner wall of the seating groove 221222 a.

As shown in fig. 79 and 90a-b, the first friction plate 2213a is disposed between the first carrier 221a and the first driving element 211a, one end of the first friction plate 2213a is operatively connected, e.g., in friction contact, with the first driving element 211a, and the other end of the first friction plate 2213a extends inward to be fixedly connected with the first carrier body 2211a of the first carrier 221 a. The inward refers to a direction toward the optical axis.

In this case, the guide 24a and the position sensor element 28a are each arranged in a free space or installation space formed between the first carrier body 2211a and the first drive element 211 a. Specifically, the first friction plate 2213a connects the first carrier 221a with the first driving element 211a, and the first friction plate 2213a extends inward to provide a certain avoidance space for the guiding device 24a and the position sensing element 28a in the driving assembly 20 a. In other words, one end of the first friction plate 2213a is fixedly connected to the first carrier body 2211a of the first carrier 221a, and the other end is operatively connected to the first driving element 211a, so that the first driving element 211a can drive the first friction plate 2213a to move along the adjustment direction. Accordingly, the first friction plate 2213a disposed in the structural space between the first driving element 211a and the first carrier body 2211a of the first carrier 221a divides the structural space into a first structural space and a second structural space opposite to the first structural space. Here, the first structural space and the second structural space opposite to the first structural space are embodied as, for example, an upper space and a lower space of the first friction plate 2213a in the drawing.

In the first installation space, a position sensor 28a for sensing the position of the movement of the first carrier 221a or of the first friction plate 2213a can be arranged, while in the second installation space opposite the first installation space, a guide 24a for guiding the movement of the first carrier 221a in the adjustment direction, in particular a guide rod of the guide 24a, can be arranged. In other words, the guide device 24a and the position sensing element 28a may be disposed in the upper space and the lower space of the first friction plate 2213a, respectively, so that the structure of the variable-focus camera module 100a is more compact.

The description of the composition, structure and arrangement of the first carrier 221a and its corresponding components is equally applicable to the second carrier 222a described below, as well as to the case where the drive assembly 20a includes only one drive carrier, in which case the first carrier 221a is the only drive carrier.

The second carrier 222a may have the same structure as the first carrier 221a, or may have a different structure. In the present application, the second carrier 222a and the first carrier 221a have the same structure. It should be noted that the related component structures and arrangements described above in connection with the first carrier 221a are equally applicable to the related component structures and arrangements of the second carrier 222a, unless specifically noted otherwise.

The second carrier 222a includes a second carrier body 2221a and connection terminals 2222a. The second carrier body 2221a has a receiving cavity 22211a therein, and the receiving cavity 22211a can receive the focusing group 13a or the zooming group 12a therein. The connection ends include a second connection end 22222a disposed on a first side wall of the second carrier body 2221a and extending outwards, and a first connection end 22221a disposed on a second side wall of the second carrier body 2221a and extending outwards, where the first side wall and the second side wall of the second carrier body 2221a are respectively located at two opposite sides along the optical axis direction or the adjustment direction. The first connection end 22221a has a first connection hole 222211a formed therein to connect the guide device 24a with the second carrier 222a therethrough. The second connection end 22222a has a second connection hole 222221a formed therein to connect the guide device 24a with the second carrier 222a therethrough, and the second connection end 22222a also has a seating groove 222222a formed therein to seat the second friction plate 2223a.

In the illustrated example, the first connection hole 222211a and the second connection hole 222221a may have a through hole structure or a groove structure. Preferably, the first connection hole 222211a is a groove structure, and the second connection hole 222221a is a through hole structure. In some embodiments of the present application, the first connection hole 222211a and the second connection hole 222221a have a certain height difference, the first connection hole 222211a is located at an upper end of the second carrier 222a, and the second connection hole 222221a is located at a lower end of the second carrier 222a. The arrangement can provide a certain avoidance space for other elements in the driving assembly 20a, and make full use of the space position in the driving assembly 20a, so that the structure of the zoom camera module 100a is more compact. Of course, in other embodiments of the present application, the first connection hole 222211a and the second connection hole 222221a may have the same height, i.e. are disposed at the upper end or the lower end of the second carrier 222a. The second friction plate 2223a is disposed in the seating groove 222222a of the second connection end 22222 a.

The second friction plate 2223a and the second carrier 222a may be integrally formed, or may be separately formed, that is, the second friction plate 2223a may be integrally formed with the second carrier 222a, or may be embedded in the placement groove 222222a of the second connection end 22222a to be fixed with the second carrier 222 a. The second friction plate 2223a has a cubic structure, that is, the second driving element 212a is in friction contact with a friction surface of the second friction plate 2223a, so as to drive the second friction plate 2223a to move the second carrier 222 a. Wherein, the length of the friction surface of the second friction plate 2223a in the optical axis direction or in the adjustment direction is greater than or equal to the movement stroke of the second carrier 222 a.

In the present application, the number of the first connection holes 222211a is at least one, and the number of the second connection holes 222221a is at least one. For example, two second connection holes 222221a may be provided at a distance from each other. An outer wall of the second connection hole 222221a may form one inner wall of the seating groove 222222 a.

In combination with the embodiment shown in the drawings, the placement grooves in the first carrier 221a and the second carrier 222a are in a clamped rail structure, and the first friction plate 2213a and the second friction plate 2223a are respectively clamped in parallel rails, so that the friction plates and the driving carrier have better parallelism, further the problem of shaking and clamping in the running process is reduced, the optical system of the variable-focus camera module 100a is more stable, and tilting is avoided. Preferably, the first friction plate 2213a is on the same horizontal plane as the second friction plate 2223 a. Preferably, the first friction plate 2213a and the second friction plate 2223a are ceramic plates.

As shown in fig. 79 and 90a-b, the second friction plate 2223a is disposed between the second carrier 222a and the second driving element 212a, one end of the second friction plate 2223a is in friction contact with the second driving element 212a, and the other end of the second friction plate 2223a extends inward to be fixedly connected with the second carrier body 2221a of the second carrier 222 a. Inward refers to a direction towards the optical axis or the geometric axis of the drive carrier.

In the present application, the guide device 24a and the position sensor element 28a are both disposed in a free space or installation space formed between the second carrier body 2221a and the second drive element 212 a. Specifically, the second friction plate 2223a connects the second carrier 222a with the second driving element 212a, and the second friction plate 2223a extends inward to provide a certain escape space for the guiding device and the position sensing element in the driving assembly. In other words, one end of the second friction plate 2223a is fixedly connected to the second carrier body 2221a of the second carrier 222a, and the other end is operatively connected to the second driving element 212a, so that the second driving element 212a can drive the second friction plate 2223a to move in the adjustment direction. Accordingly, the second friction plate 2223a disposed in the structural space between the second driving element 212a and the second carrier body 2221a of the second carrier 222a divides the structural space into a first structural space and a second structural space opposite to the first structural space. Here, the first structural space and the second structural space opposite to the first structural space are embodied as, for example, an upper space and a lower space of the second friction plate 2223a in the drawing.

In the first installation space, a position sensor 28a for sensing the position of the movement of the second carrier 222a or of the second friction plate 2223a can be arranged, while in the second installation space opposite the first installation space, a guide 24a for guiding the movement of the second carrier 222a in the adjustment direction, in particular a guide rod of the guide 24a, can be arranged. In other words, for example, the guide device 24a and the position sensing element 28a may be disposed in the upper space and the lower space of the second friction plate 2223a, respectively, so that the structure of the variable-focus camera module 100a is more compact.

In the driving assembly 20a, the first carrier 221a and the second carrier 222a are sequentially disposed along the optical axis direction or the adjustment direction, and the first friction plate 2213a of the first carrier 221a is disposed on a first side of the driving assembly 20a, the second friction plate 2223a of the second carrier 222a is disposed on a second side of the driving assembly 20a, and the first side and the second side of the driving assembly 20a are respectively disposed on opposite sides along the optical axis direction or along the adjustment direction.

The first connection end 22121a of the first carrier 221a and the second connection end 22222a of the second carrier 222a are located at a first side of the driving assembly 20a, the second connection end 22122a of the first carrier 221a and the first connection end 22221a of the second carrier 222a are located at a second side of the driving assembly 20a, and the first side and the second side of the driving assembly 20a are located at opposite sides along the optical axis direction or along the adjustment direction, respectively. Wherein the first connection end 22121a of the first carrier 221a is located above or below the second friction plate 2223a of the second carrier 222a, and the first connection end 22221a of the second carrier 222a is located below or above the first friction plate 2213a of the first carrier 221 a. That is, the first connection end 22121a of the first carrier 221a needs to avoid the position of the second friction plate 2223a of the second carrier 222a, and the position of the first connection end 22221a of the second carrier 222a needs to avoid the position of the first friction plate 2213a of the first carrier 221a, so as to avoid interference to the movement of the friction plate, and also make the structure of the driving assembly 20a more compact.

In the present application, the first friction plate 2213a and the second friction plate 2223a have a cubic structure, which has a friction surface disposed along the optical axis direction or along the adjustment direction, and the driving element contacts with the friction surface to provide a driving force corresponding to the first friction plate 2213a and the second friction plate 2223a, so that the first friction plate 2213a and the second friction plate 2223a can move more stably.

In the present application, the lengths of the first friction plate 2213a and the second friction plate 2223a in the optical axis direction or in the adjustment direction may be the same or different, i.e., the first friction plate 2213a and the second friction plate 2223a are determined according to the driving stroke of the corresponding driving element. When the driving stroke of the corresponding driving element is long, the lengths of the first friction plate 2213a and the second friction plate 2223a are longer; when the driving stroke of the corresponding driving element is short, the lengths of the first and second friction plates 2213a and 2223a may be short.

In some embodiments, the first friction plate 2213a fixedly connected to the first carrier body 2211a of the first carrier 221a extends in the adjusting direction toward a direction away from the second carrier 222a, and the second friction plate 2223a fixedly connected to the second carrier body 2221a of the second carrier 222a extends in the adjusting direction toward a direction away from the first carrier 221 a. In other words, the first friction plate 2213a and the second friction plate 2223a extend in the optical axis direction or in the adjustment direction toward two opposite directions, i.e., one toward the object side and one toward the image side, respectively.

Here, the first driving element 211a and the first friction plate 2213a operatively connected to the first driving element 211a are located at a first side of the driving assembly 20a, and the second driving element 212a and the second friction plate 2223a operatively connected to the second driving element 212a are located at a second side of the driving assembly 20a, the first and second sides being opposite to each other with respect to the common axis of the first carrier 221a and the second carrier 222 a.

Specifically, as shown in fig. 78, the first friction plate 2213a and the second friction plate 2223a extend in the optical axis direction or in the adjustment direction toward two opposite directions, that is, one toward the object side and one toward the image side, respectively. In some embodiments of the present application, the first friction plate 2213a may extend toward the object side in a direction away from the second carrier 222a, and the second friction plate 2223a may extend toward the image side in a direction away from the first carrier 221a. Wherein the object side is a side near the light turning 40a, and the image side is a side near the photosensitive element 30 a.

In some embodiments, the first drive element 211a is disposed at an intermediate position of the drive assembly 20a in the adjustment direction, and the second drive element 212a is disposed at an intermediate position of the drive assembly 20a in the adjustment direction. Wherein the first driving element 211a and the second driving element 212a may be arranged parallel to each other along the adjustment direction.

Specifically, the first friction plate 2213a and the second friction plate 2223a extend in different directions, so that the first driving element 211a and the second driving element 212a may be disposed at an intermediate position of the driving assembly 20a, and further the first friction plate 2213a and the second friction plate 2223a may be respectively maintained within a driving range of the first driving element 211a and the second driving element 212a during the movement, that is, the first driving element 211a and the first friction plate 2213a are in frictional contact during the driving, and the second driving element 212a and the second friction plate 2223a are in frictional contact, without causing the first driving element 211a and the second driving element 212a to be separated from the friction plates due to the fact that the first friction plate 2213a and the second friction plate 2223a exceed the range of the movement stroke.

In other embodiments, the guide 24a may comprise a plurality of guide bars, in particular two guide bars, namely a first guide bar 241a and a second guide bar 242a.

Specifically, the following is described in detail with reference to fig. 76 to 77.

As shown in fig. 77 to 78, the guiding device 24a includes a first guiding rod 241a and a second guiding rod 242a. The first guide bar 241a and the second guide bar 242a are provided to guide the zoom lens group 10a to move in the optical axis direction with good accuracy, and the axes thereof are parallel to the optical axis or the adjustment direction of the zoom lens group 10 a.

The first guide rod 241a and the second guide rod 242a are respectively disposed on a second side and a first side opposite to the driving assembly 20a, so as to cooperate with the first driving element 211a and the second driving element 212a to implement a guiding function for the movement of the first carrier 221a and the second carrier 222 a.

For this purpose, the guide bar of the guide 24a can be fixedly connected at both ends to the drive housing 26 a. Both ends of the first guide bar 241a and the second guide bar 242a are respectively fixed to the driving housing 26a, so that the first guide bar 241a and the second guide bar 242a can be stably disposed in the driving assembly 20 a.

The first guide rod 241a and the second guide rod 242a are disposed along an optical axis or an adjusting direction of the zoom lens group 10a, and the first guide rod 241a and the second guide rod 242a are movably connected with the first carrier 221a and the second carrier 222a, respectively, and provide guiding directions for the first carrier 221a and the second carrier 222a through the first guide rod 241a and the second guide rod 242 a.

In the illustrated embodiment, the first guide bar 241a passes through the second connection hole 221221a of the second connection end 22122a of the first carrier 221a and the first connection hole 222211a of the first connection end 22221a of the second carrier 222a, and the second guide bar 242a passes through the first connection hole 222211a of the first connection end 22121a of the first carrier 221a and the second connection hole 222221a of the second connection end 22222a of the second carrier 222a, so that the first carrier 221a and the second carrier 222a can be individually moved along the first guide bar 241a and the second guide bar 242a of the guide device 24a by the driving of the first driving element 211a and the second driving element 212a, respectively, wherein the first guide bar 241a and the second guide bar 242a are arranged in parallel to each other along the adjustment direction.

Further, the first guide rod 241a may be movably connected to the first carrier 221a through the second connection hole 221221a of the second connection end 22122a of the first carrier 221a, and may be movably connected to the second carrier 222a through the first connection hole 222211a of the first connection end 22221a of the second carrier 222 a. Here, the second connection hole 221221a of the second connection end 22122a of the first carrier 221a and the first connection hole 222211a of the first connection end 22221a of the second carrier 222a are coaxial with each other.

Similarly, the second guide rod 242a may be movably connected to the first carrier 221a through the first connection hole 222211a of the first connection end 22121a of the first carrier 221a, and movably connected to the second carrier 222a through the second connection hole 222221a of the second connection end 22222a of the second carrier 222 a. Here, the first connection hole 222211a of the first connection end 22121a of the first carrier 221a and the second connection hole 222221a of the second connection end 22222a of the second carrier 222a are coaxial with each other.

When the first driving element 211a drives the first carrier 221a to move in the optical axis direction or in the adjustment direction, the first guide bar 241a may serve as a main guide bar for guiding the movement of the first carrier 221a, and the second guide bar 242a may serve as a sub guide bar for preventing the first carrier 221a from rotating.

When the second driving element 212a drives the second carrier 222a to move in the optical axis direction or in the adjustment direction, the second guide rod 242a can serve as a main guide rod for guiding the movement of the second carrier 222a, and the first guide rod 241a can serve as a sub guide rod for preventing the second carrier 222a from rotating.

That is, the first guide rod 241a and the second guide rod 242a can be used as a main guide rod and a sub guide rod, which cooperate with each other to not only have the function of guiding direction, but also prevent the rotation of the driving carrier.

The first guide 241a and the second guide 242a may have a height difference in that the first guide 241a may be positioned at an upper end of the second sides of the first and second carriers 221a and 222a, and the second guide 242a may be positioned at a lower end of the first sides of the first and second carriers 221a and 222a, wherein the first and second sides of the first and second carriers 221a and 222a are positioned at opposite sides with respect to the optical axis. Therefore, a certain avoidance space is provided for other elements in the driving assembly 20a, so that the structure of the variable-focus camera module 100a is more compact.

Further, the first guide bar 241a is disposed above the first friction plate 2213a, and the second guide bar 242a is disposed below the second friction plate 2223a, so as to reserve a certain movement space for the first friction plate 2213a and the second friction plate 2223a, and avoid interference to the movement of the first carrier 221a and the second carrier 222 a. Of course, in other embodiments of the present application, the first guide bar 241a may be disposed below the first friction plate 2213a, and the second guide bar 242a may be disposed above the second friction plate 2223 a.

As shown in fig. 78 to 85, the driving element 21a includes at least two driving elements: a zoom drive element 211a and a focus drive element 212a, the at least two drive elements 21a being implemented as piezo-electric actuators. Here, the zoom driving element 211a is also referred to as a first driving element, and the focus driving element 212a is also referred to as a second driving element. The corresponding drive element may also assume other functions, not limited to the focusing or zooming functions illustrated herein.

In the drawings, the zoom driving element 211a and the focus driving element 212a are disposed on the side surfaces of the driving assembly 20a, respectively, so as to avoid an increase in the height dimension of the variable-focus camera module 100 a. Further, the zoom driving element 211a and the focus driving element 212a are disposed at a first side and a second side opposite to each other of the driving unit 20a, that is, the zoom driving element 211a is disposed at the first side of the driving unit 20a, and the focus driving element 212a is disposed at the second side opposite to the driving unit 20 a.

When the zoom group 12a is disposed in the first carrier 221a, the zoom driving element 211a is configured to drive the first carrier 221a to move, so as to drive the zoom group 12a to move to realize an optical zoom function.

When the focusing group 13a is disposed in the second carrier 222a, the focusing driving element 212a is configured to drive the second carrier 222a to move, so as to drive the focusing group 13a to move to achieve an optical focusing function.

Of course, in other embodiments of the present application, if the placement positions of the zoom group 12a and the focus group 13a are changed, the positions of the zoom driving element 211a and the focus driving element 212a are also changed. In the present application, the zoom driving element 211a and the focus driving element 212a are symmetrically disposed, and preferably, the zoom driving element 211a and the focus driving element 212a are symmetrically disposed in the optical axis direction or in the adjustment direction. The zoom driving element 211a and the focus driving element 212a are parallel to each other in the optical axis direction. The arrangement of the two separate sides not only can avoid the increase of the single-side size of the variable-focus camera module 100a, but also can avoid the interference between the zoom driving element 211a and the focus driving element 212a in the process of respectively driving the first carrier 221a and the second carrier 222a to move.

Further, the arrangement of the present application can also make the internal space of the variable-focus camera module 100a be fully used, so as to facilitate the light-weight and thin-type of the variable-focus camera module 100 a. Further, it is also possible to provide the first carrier 221a and the second carrier 222a with driving forces parallel to each other so that the first carrier 221a and the second carrier 222a do not tilt during movement. In the present application, the zoom driving element 211a and the focus driving element 212a are disposed at intermediate positions of the driving assembly 20a along the optical axis direction or along the adjustment direction, so that the first friction plate 2213a and the second friction plate 2223a are kept within the driving range of the driving element 21a during movement, that is, the first friction plate 2213a and the second friction plate 2223a are respectively kept in frictional contact with the corresponding driving elements during driving, without causing the first friction plate 2213a and the second friction plate 2223a to be separated from the driving elements beyond the range of the movement stroke.

In some embodiments, the driving element 21a may be configured as a piezoelectric actuator comprising a piezoelectric plate 213a and a friction driving portion 214a fixed to the piezoelectric plate, wherein the friction driving portion 214a is operatively connected to the friction plate so as to be capable of driving the friction plate to move in the adjustment direction, i.e. in the optical axis direction. Specifically, the friction driving portion 214a of the first driving element 211a may be operatively connected to the first friction plate 2213a so as to be capable of driving the first friction plate 2213a to move in the adjustment direction, and the friction driving portion 214a of the second driving element 212a may be operatively connected to the second friction plate 2223a so as to be capable of driving the second friction plate 2223a to move in the adjustment direction.

Fig. 80a-c are schematic illustrations of the operative connection of a piezoelectric actuator to a friction plate according to some embodiments of the present application, wherein in an initial position, fig. 80a shows the friction drive portion 214a operatively connected to the friction plate 2213a (2223 a) at a mid-position of the corresponding friction plate 2213a (2223 a), fig. 80b shows the friction drive portion 214a operatively connected to the friction plate 2213a (2223 a) at one end of the corresponding friction plate 2213a (2223 a), and fig. 80c shows the operative connection to the friction plate 2213a (2223 a) at an opposite end.

As shown in fig. 80a-c to 85, the driving element 21a includes at least one traveling wave piezoelectric actuator having a step precision of nanometer scale, which can meet more extreme optical system requirements. As an example, the at least one piezoelectric actuator includes a piezoelectric ceramic plate 213a and a friction driving part 214a fixed to the piezoelectric ceramic plate 213 a. The piezoelectric ceramic plate 213a is composed of a very small piezoelectric ceramic, and the piezoelectric ceramic plate 213a is adapted to be deformed by the inverse piezoelectric effect of the piezoelectric ceramic plate 213a after the piezoelectric ceramic plate 213a is energized by a power source, so that the friction driving portion 214a on the piezoelectric ceramic plate 213a moves.

Further, the zoom driving element 211a is disposed on the first friction plate 2213a, and the focus driving element 212a is disposed on the second friction plate 2223a, that is, the zoom driving element 211a and the focus driving element 212a respectively and individually drive the first friction plate 2213a and the second friction plate 2223a to move, so as to respectively drive the corresponding first carrier 221a and second carrier 222a to individually move. In the present application, the length of the friction plate in the optical axis direction or in the adjustment direction is equal to or longer than the driving stroke of the driving element 21a. Hereinafter, the zoom driving element 211a is referred to as a first driving element 211a, and the focus driving element 212a is referred to as a second driving element 212a.

In general, the friction driving portion 214a acts on and is in frictional contact with a corresponding friction plate. Of course, it is preferable that in the initial state, the friction driving portion 214a is located at a middle position of a corresponding friction plate which can be moved bi-directionally in the optical axis direction or in the adjustment direction, i.e., toward the object side or toward the image side, i.e., the friction driving portion 214a can be moved in both directions, by the driving of the driving element 21 a.

Specifically, in the initial position, the friction drive portion 214a of the first drive element 211a may be operatively connected to the first friction plate 2213a at an intermediate position of the first friction plate 2213a in the adjustment direction, and/or the friction drive portion 214a of the second drive element 212a may be operatively connected to the second friction plate 2223a at an intermediate position of the second friction plate 2223a in the adjustment direction.

In general, however, in the initial state, the friction drive 214a can also be located at one end relative to the corresponding friction plate, so that this friction plate can be moved in the optical axis direction or in the adjustment direction by the friction drive 214a of the drive element 21a toward the other opposite end.

Specifically, in the initial position, the friction drive portion 214a of the first drive element 211a is operatively connected to the first friction plate 2213a at one end of the first friction plate 2213a in the adjustment direction, and/or the friction drive portion 214a of the second drive element 212a is operatively connected to the second friction plate 2223a at one end of the second friction plate 2223a in the adjustment direction.

That is, in the initial state, the friction driving portion 214a may be located at the image side end/the object side end of the corresponding friction portion, and the corresponding friction plate may be moved toward the object side/the image side in the optical axis direction or in the adjustment direction by the driving element 21 a. In the present application, the image side is the side facing the photosensitive member 30a, and the object side is the side away from the photosensitive member 30 a.

The first driving element 211a and the second driving element 212a may be the same piezoelectric actuator or different piezoelectric actuators, and in the present application, the first driving element 211a and the second driving element 212a are described as the same piezoelectric actuator.

In the embodiments shown in fig. 81 to 85 and 90a, a driving element is provided on one side of the friction plate and a friction mechanism 215a is provided on the opposite side of the friction plate, so that the friction plate is clamped between the driving element and the friction mechanism 215a by the pre-compression means, whereby the friction plate can be moved in the adjustment direction by the driving of the driving element.

Specifically, fig. 81 is a schematic side view of a first carrier 221a, including an assembled first friction plate 2213a, first drive element 211a, and first friction mechanism 2151a, according to some embodiments of the application. The first driving element 211a may also be referred to as a zoom driving element 211a, and includes a piezoelectric plate 213a and a friction driving portion 214a fixed to the piezoelectric plate. The friction driving portion 214a of the first driving element 211a is in friction contact with the first friction plate 2213 a. After the first driving element 211a is energized by the power supply, the piezoelectric ceramic plate 213a of the first driving element 211a generates a plane change in the traveling wave state, so as to drive the friction driving portion 214a of the first driving element 211a to generate a unidirectional yaw reciprocating motion along the optical axis direction or along the adjustment direction, and further drive the first friction plate 2213a to move along the optical axis direction or along the adjustment direction due to the frictional contact between the friction driving portion 214a of the first driving element 211a and the first friction plate 2213 a.

Specifically, when the first driving element 211a is excited, the friction driving portion 214a of the first driving element 211a is in friction contact with the first friction plate 2213a, the piezoelectric ceramic plate 213a of the first driving element 211a generates a plane type change of the traveling wave state, and the friction driving portion 214a of the first driving element 211a is driven to perform a yaw motion along the optical axis direction or the adjustment direction, so as to drive the first friction plate 2213a to move along the optical axis direction or the adjustment direction.

After one movement cycle is completed, the piezoelectric ceramic plate 213a of the first driving element 211a is lifted, and the friction driving portion 214a of the first driving element 211a is separated from the first friction plate 2213a until the friction driving portion 214a is in friction contact with the first friction plate 2213a again, and the friction driving portion 214a of the first driving element 211a is repositioned and performs a yaw movement again along the optical axis direction or along the adjustment direction under the driving of the piezoelectric ceramic plate 213a, so as to drive the first friction plate 2213a to continue to move along the optical axis direction or along the adjustment direction. Fig. 84a-d show related piezoelectric driving principle schematics.

In the present application, the first driving element 211a may be disposed at an upper portion or a lower portion of the first friction plate 2213a, that is, the friction driving portion 214a of the first driving element 211a may be in friction contact with an upper friction surface of the first friction plate 2213a or may be in friction contact with a lower friction surface of the first friction plate 2213 a. Accordingly, the first driving element 211a may be used to provide a driving force for moving the first carrier 221a in the adjustment direction. The first friction plate 2213a may be disposed between the carrier body 2211a of the first carrier 221a and the first driving element 211a, wherein one end of the first friction plate 2213a is fixedly connected with the carrier body 2211a of the first carrier 221a, and the other end is operatively connected with the first driving element 211a, such that the first driving element 211a can drive the first friction plate 2213a to move in the adjustment direction.

The first driving element 211a and the first friction plate 2213a are arranged in the first pre-pressing device 2301a, and the first driving element 211a and the first friction plate 2213a are pressed together by the clamping action of the first pre-pressing device 2301 a. That is, the first pre-compression device 2301a provides a pre-compression force along a friction surface perpendicular to the first friction plate 2213a, and the first pre-compression device 2301a is capable of maintaining the first driving element 211a in frictional contact with the first friction plate 2213 a. And due to the existence of the pre-pressure, the friction driving portion 214a of the first driving element 211a can be kept on the friction surface of the first friction plate 2213a all the time, and the driving force generated by the first driving element 211a on all the first friction plate 2213a is the same. In addition, the first friction plate 2213a is driven to move by the friction force on the friction surface, so that the first friction plate 2213a can move more stably.

Taking the example that the first driving element 211a is disposed on the upper portion of the first friction plate 2213a, the piezoelectric ceramic plate 213a of the first driving element 211a may be fixed to the first pre-pressing device 2301a, and the friction driving portion 214a of the first driving element 211a faces the first friction plate 2213a and is in frictional contact with the upper friction surface of the first friction plate 2213 a.

In some embodiments, to reduce the friction between the first friction plate 2213a and the first pre-compression device 2301a, a first friction mechanism 2151a may be disposed between the first pre-compression device 2301a and the first friction plate 2213a, such that the first friction plate 2213a and the first pre-compression device 2301a are movably connected by the first friction mechanism 2151a, wherein the first pre-compression device 2301a presses the first friction mechanism 2151a against the first friction plate 2213 a. Specifically, the first driving element 211a is provided on one side of the first friction plate 2213a, and the first friction mechanism 2151a is provided on the opposite side of the first friction plate 2213a, such that the first friction plate 2213a is clamped between the first driving element 211a and the first friction mechanism 2151a by the first pre-pressing device 2301a, such that the first friction plate 2213a can be moved in the adjustment direction by the driving of the first driving element 211 a. Thereby, the friction force between the first friction plate 2213a and the first pre-compression device 2301a is reduced by point friction instead of surface friction.

In some embodiments of the application, the first friction mechanism 2151a includes a groove or roller way configured on the first pre-compression device 2301a and/or the first friction plate 2213a, and balls or slides disposed in the groove or roller way. By providing a groove or a track in the optical axis direction or in the adjustment direction between the first pre-pressing means 2301a and the friction surface of the first friction plate 2213a and providing a ball in the groove or track, the first friction plate 2213a can be made movable in the optical axis direction or in the adjustment direction under the grip of the friction driving portion 214a and the ball. The first driving element 211a and the first friction mechanism 2151a may be disposed opposite to each other along the first friction plate 2213 a.

The structures and features described above in connection with the first carrier 221a and its associated components are equally applicable to the second carrier 222a and its associated components in the case of comprising the first carrier 221a and the second carrier 222a, as described in detail below.

Corresponding to fig. 81, fig. 82 is a schematic side view of a second carrier 222a, including an assembled second friction plate 2223a, second drive element 212a, and second friction mechanism 2152a, according to some embodiments of the application. The second driving element 212a may also be referred to as a focus driving element 212a, and includes a piezoelectric plate 213a and a friction driving portion 214a fixed to the piezoelectric plate. The friction drive portion 214a of the second drive element 212a is in frictional contact with the second friction plate 2223 a. After the second driving element 212a is energized by the power supply, the piezoelectric ceramic plate 213a of the second driving element 212a generates a plane change in the traveling wave state, so as to drive the friction driving portion 214a of the second driving element 212a to generate a unidirectional yaw reciprocating motion along the optical axis direction or along the adjustment direction, and further drive the second friction plate 2223a to move along the optical axis direction or along the adjustment direction due to the frictional contact between the friction driving portion 214a of the second driving element 212a and the second friction plate 2223 a.

Specifically, when the second driving element 212a is excited, the friction driving portion 214a of the second driving element 212a is in friction contact with the second friction plate 2223a, the piezoelectric ceramic plate 213a of the second driving element 212a generates a plane type change of the traveling wave state, and the friction driving portion 214a of the second driving element 212a is driven to perform a yaw motion along the optical axis direction or the adjustment direction, so as to drive the second friction plate 2223a to move along the optical axis direction or the adjustment direction.

After one movement cycle is completed, the piezoelectric ceramic plate 213a of the second driving element 212a is lifted, the friction driving portion 214a of the second driving element 212a is separated from the second friction plate 2223a, the friction driving portion 214a of the second driving element 212a is in friction contact with the second friction plate 2223a again, and the friction driving portion 214a of the second driving element 212a is repositioned and performs a yaw movement again along the optical axis direction or along the adjustment direction under the driving of the piezoelectric ceramic plate 213a, so as to drive the second friction plate 2223a to continue to move along the optical axis direction or along the adjustment direction. This operation is the same as described above in connection with the first driving element 211 a.

In the present application, the second driving element 212a may be disposed on the upper or lower portion of the second friction plate 2223a, that is, the friction driving portion 214a of the second driving element 212a may be in friction contact with the upper friction surface of the second friction plate 2223a or may be in friction contact with the lower friction surface of the second friction plate 2223 a. Accordingly, the second driving element 212a may be used to provide a driving force for moving the second carrier 222a in the adjustment direction. The second friction plate 2223a may be disposed between the carrier body 2221a of the second carrier 222a and the second driving element 212a, wherein one end of the second friction plate 2223a is fixedly connected to the carrier body 2221a of the second carrier 222a and the other end is operatively connected to the second driving element 212a such that the second driving element 212a can drive the second friction plate 2223a to move in the adjustment direction.

The second driving element 212a and the second friction plate 2223a are disposed in the second pre-compression device 2302a, and the second driving element 212a and the second friction plate 2223a are pressed together by the clamping action of the second pre-compression device 2302 a. That is, the second pre-compression device 2302a provides a pre-compression force along a friction surface perpendicular to the second friction plate 2223a, and the second pre-compression device 2302a is capable of maintaining the second driving element 212a in frictional contact with the second friction plate 2223 a. And due to the existence of the pre-pressure, the friction driving portion 214a of the second driving element 212a can be kept on the friction surface of the second friction plate 2223a all the time, and the driving force generated by the second driving element 212a on all the second friction plate 2223a can be the same. In addition, the second friction plate 2223a is driven to move by the friction force on the friction surface in the present application, so that the second friction plate 2223a can move more smoothly.

Taking the example that the second driving element 212a is disposed on the upper portion of the second friction plate 2223a, the piezoelectric ceramic plate 213a of the second driving element 212a is fixed to the second pre-pressing device 2302a, and the friction driving portion 214a of the second driving element 212a faces the second friction plate 2223a and is in frictional contact with the upper friction surface of the second friction plate 2223 a.

In some embodiments, to reduce the friction between the second friction plate 2223a and the second pre-compression device 2302a, a second friction mechanism 2152a may be disposed between the second pre-compression device 2302a and the second friction plate 2223a, such that the second friction plate 2223a and the second pre-compression device 2302a are movably connected by the second friction mechanism 2152a, wherein the second pre-compression device 2302a presses the second friction mechanism 2152a against the second friction plate 2223 a. Specifically, the second driving element 212a is provided on one side of the second friction plate 2223a, and the second friction mechanism 2152a is provided on the opposite other side of the second friction plate 2223a such that the second friction plate 2223a is sandwiched between the second driving element 212a and the second friction mechanism 2152a by the second pre-pressing device 2302a, so that the second friction plate 2223a can be moved in the adjustment direction by the driving of the second driving element 212 a. Thereby, the friction force between the second friction plate 2223a and the second pre-compression device 2302a is reduced by the point friction instead of the surface friction.

In some embodiments of the application, the second friction mechanism 2152a includes a groove or roller way configured on the second pre-compression device 2302a and/or the second friction plate 2223a, and balls or slides disposed in the groove or roller way. By providing a groove or a rail in the optical axis direction or in the adjustment direction between the second pre-pressing device 2302a and the friction surface of the second friction plate 2223a and providing a ball in the groove or the rail, the second friction plate 2223a can be moved in the optical axis direction or in the adjustment direction under the grip of the friction driving portion 214a and the ball. The second driving element 212a and the second friction mechanism 2152a may be disposed opposite to each other along the second friction plate 2223 a.

The first friction means 2151a and the second friction means 2152a can be identical in this case, i.e. each comprise a recess or roller way formed on the respective pre-stressing device and/or friction plate and balls or slides arranged therein.

Fig. 90a is an axial view of a drive assembly according to some embodiments of the present application, wherein each friction plate is provided with a drive element and a friction mechanism, respectively. As shown in fig. 90a, the first driving element 211a and the first friction mechanism 2151a are disposed on the same side of the driving assembly 20a, wherein the first driving element 211a and the first friction mechanism 2151a are disposed opposite to each other along the first friction plate 2213a, and the first driving element 211a and the first friction mechanism 2151a are in frictional contact with the first friction plate 2213 a.

The second driving element 212a and the second friction mechanism 2152a are disposed on the same side of the driving assembly 20a, wherein the second driving element 212a and the second friction mechanism 2152a are disposed opposite to each other along the second friction plate 2223a, and the second driving element 212a and the second friction mechanism 2152a are both in frictional contact with the second friction plate 2223 a.

The first driving element 211a and the first friction mechanism 2151a are disposed on a first side of the driving assembly 20a, and the second driving element 212a and the second friction mechanism 2152a are disposed on a second side of the driving assembly 20a, wherein the first side and the second side of the driving assembly 20a are opposite to each other along the optical axis or along the adjustment direction.

The first drive element 211a and the first friction mechanism 2151a as a whole are centrally symmetrical with respect to the second drive element 212a and the second friction mechanism 2152a as a whole, viewed in the optical axis direction or in the adjustment direction, wherein the first drive element 211a is centrally symmetrical with respect to the second drive element 212a, viewed in the optical axis direction or in the adjustment direction, and the first friction mechanism 2151a is centrally symmetrical with respect to the second friction mechanism 2152a, viewed in the optical axis direction or in the adjustment direction.

In the view angles of fig. 90a-b, the optical axis direction or the adjustment direction is represented as a point in the geometric center of the drive carrier, which point is the above-mentioned point of symmetry of central symmetry. Furthermore, the first carrier 221a and the second carrier 222a are arranged in sequence on the same axis in the adjustment direction and can be moved independently of each other in said adjustment direction, which axis coincides with the optical axis and is parallel to the adjustment direction, so that also a point is represented in the view, with respect to which the first driving element 211a and the second driving element 212a are centrosymmetric. In other words, the reference is made here to the direction of the optical axis or the direction of adjustment, i.e. the direction of adjustment of the drive carrier. In general, the first carrier 221a and the second carrier 222a are sequentially arranged on the same axis in the adjustment direction, which is the same as the optical axis or the adjustment direction of the drive carrier. The adjustment direction is here embodied as a point, i.e. a point of symmetry which is centrosymmetric, viewed along the adjustment direction of the drive carrier. The description of the central symmetry applies here to the arrangement of the other parts of the description which is symmetrical about the center of the component.

Likewise, the first friction mechanism 2151a and the second friction mechanism 2152a are also centrally symmetric as viewed along the axis. Alternatively, the first friction mechanism 2151a and the second friction mechanism 2152a are constructed as structurally identical standard components.

In the present application, the first driving element 211a and the second driving element 212a can have the same structure by arranging the first driving element 211a and the second driving element 212a in a central symmetry manner as viewed in the optical axis direction or in the adjustment direction, so that the first driving element 211a and the second driving element 212a can be arranged as standard components. The arrangement mode enables the structural design of the variable-focus camera module to be simpler, and is beneficial to simplifying the structure of the variable-focus camera module. That is, the first driving element 211a and the second driving element 212a may be configured as a standard piece having the same structure.

In particular, the first structural unit formed by the first driving element 211a and the first friction mechanism 2151a and the second structural unit formed by the second driving element 212a and the second friction mechanism 2152a may be configured as a standard structural unit having the same structure, and the first structural unit and the second structural unit may also be arranged to be center-symmetrical as viewed along the axis. As shown in fig. 90a, the first driving element 211a may be disposed at a lower portion of the first friction plate 2213a, and the first friction mechanism 2151a is disposed at an upper portion of the first friction plate 2213a opposite thereto; the second driving element 212a may be disposed at an upper portion of the second friction plate 2223a, and the second friction mechanism 2152a may be disposed at a lower portion of the second friction plate 2223a opposite thereto. Of course, it is also possible to exchange the positions of the first driving element 211a and the first friction mechanism 2151a with each other, and also exchange the positions of the second driving element 212a and the second friction mechanism 2152a with each other.

Fig. 90b is an axial view of a drive assembly 20a according to further embodiments of the present application, wherein one drive element is provided on each of two opposite sides of each friction plate such that the friction plate is sandwiched between the two drive elements and is movable in the adjustment direction under the cooperative drive of the two drive elements.

Specifically, as shown in fig. 83 and 90b, the first driving element includes a first upper driving element 2111a and a first lower driving element 2112a, wherein the first upper driving element 2111a and the first lower driving element 2112a are located at the same side of the driving assembly 20a, and the first upper driving element 2111a and the first lower driving element 2112a are disposed opposite to each other at both sides of the first friction plate 2213 a. The first upper driving element 2111a and the first lower driving element 2112a may be identically configured as piezoelectric actuators.

It should be noted here that, in the present application, the expressions "upper" and "lower" are used only to distinguish similar components in terms of names, and do not necessarily represent actual orientations of the components, but merely express positional relationships with respect to each other, i.e., the names with the "upper" and "lower" prefixes represent components with respect to each other based on friction plates. For example, the first upper driving element 2111a and the first lower driving element 2112a are based on the first friction plate 2213a being opposite to each other, i.e., disposed on opposite sides of the first friction plate 2213 a.

The first upper driving element 2111a includes a first piezoelectric ceramic plate 21111a and a first friction driving portion 21112a, and the first lower driving element 2112a includes a second piezoelectric ceramic plate 21121a and a second friction driving portion 21122a. The first friction plate 2213a is sandwiched between the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a, and the first friction plate 2213a is driven by the first friction driving portion 21112a and the second friction driving portion 21122a in cooperation on both sides, so that the first carrier 221a is moved in the optical axis direction or in the adjustment direction.

The first upper driving element 2111a and the first lower driving element 2112a are disposed in the first pre-pressing device 2301a, and the first upper driving element 2111a, the first lower driving element 2112a and the first friction plate 2213a are pressed together by the clamping action of the first pre-pressing device 2301 a. That is, the first pre-pressing device 2301a provides a pre-pressing force along a friction surface perpendicular to the first friction plate 2213a, and is capable of maintaining the first upper driving element 2111a and the first lower driving element 2112a while being in frictional contact with the first friction plate 2213 a. The line connecting the first friction drive portion 21112a of the first upper drive element 2111a and the second friction drive portion 21122a of the first lower drive element 2112a is perpendicular to the friction surface of the first friction plate 2213 a. This arrangement may enable the first upper driving element 2111a and the first lower driving element 2112a to simultaneously drive the first friction plate 2213a to move, so as to provide a greater thrust for the movement of the first carrier 221a, thereby generating a greater movement stroke, and the maximum stroke may reach 7mm.

In addition, the first carrier 221a can be kept stable in the driving assembly 20a by the structure in which the first upper driving member 2111a and the first lower driving member 2112a sandwich the first friction plate 2213a, avoiding the risk of shaking. The directions of the clamping forces generated by the first upper driving element 2111a and the first lower driving element 2112a are perpendicular to each other.

Specifically, the first piezoelectric ceramic plate 21111a of the first upper driving element 2111a is fixedly connected to the first pre-pressing device 2301a, and the first friction driving portion 21112a of the first upper driving element 2111a is in friction contact with the upper (lower) friction surface of the first friction plate 2213a under the action of the pre-pressing force; the second piezoelectric ceramic plate 21121a of the first lower driving element 2112a is fixedly connected to the first pre-pressing device 2301a, and the second friction driving portion 21122a of the first lower driving element 2112a is in frictional contact with the lower (upper) friction surface of the first friction plate 2213a under the action of the pre-pressing force, so that the first friction plate 2213a can move in the optical axis direction or in the adjustment direction under the cooperation of the first friction driving portion 21112a and the second friction driving portion 21122 a.

Since the driving force of the first upper driving member 2111a and the first lower driving member 2112a is transmitted to the first friction plate 2213a by friction, the first friction plate 2213a is driven to move, and the piezoelectric actuator is not affected in this process, the service life of the piezoelectric actuator can be prolonged.

The first upper driving element 2111a and the first lower driving element 2112a may be separately controlled, so that debugging in driving is simpler. After the first upper driving element 2111a and the first lower driving element 2112a are energized by the same power source, the first piezoelectric ceramic plate 21111a of the first upper driving element 2111a and the second piezoelectric ceramic plate 21121a of the first lower driving element 2112a generate a plane type change of the traveling wave state symmetrical to the friction plane, so as to drive the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a to generate synchronous unidirectional swing reciprocating motion.

Specifically, when the first upper driving element 2111a and the first lower driving element 2112a are excited, the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a are in friction contact with the first friction plate 2213a, the first piezoelectric ceramic plate 21111a of the first upper driving element 2111a and the second piezoelectric ceramic plate 21121a of the first lower driving element 2112a generate the same plane type change of the traveling wave state, and the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a are driven to perform a yaw motion in the optical axis direction or in the adjustment direction, so as to drive the first friction plate 2213a of the first carrier 221a to move in the optical axis direction or in the adjustment direction.

When one movement cycle is completed, the first piezoelectric ceramic plate 21111a of the first upper driving element 2111a and the second piezoelectric ceramic plate 21121a of the first lower driving element 2112a are lifted, the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a are separated from the first friction plate 2213a to the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a are brought into frictional contact with the first friction plate 2213a again, and the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a are repositioned by the driving of the first piezoelectric ceramic plate 21111a and the second piezoelectric ceramic plate 21121a, respectively, and are again moved in a yaw in the optical axis direction or in the adjustment direction, and the first friction plate 2213a is driven to continue to move in the optical axis direction or in the adjustment direction.

Since the vibration frequency of the first upper driving element 2111a is the same as that of the first lower driving element 2112a, the probability of interference is reduced. After stopping applying the voltage, the first upper driving element 2111a and the first lower driving element 2112a may form a self-locking structure, so that the first friction plate 2213a and the first carrier 221a are kept at the current position, and the position is not changed along with external shake, so that the optical system of the variable-focus camera module 100a is kept unchanged, and the influence of the imaging effect is avoided. The addition of a self-locking device to the variable-focus imaging module 100a is also eliminated, and the size of the variable-focus imaging module 100a is relatively reduced. Because of the self-locking structure formed by the first upper drive element 2111a and the first lower drive element 2112a, there is no need to keep the piezoelectric actuator active to maintain its position.

As shown in fig. 85 and 90b, the second driving element 212a includes a second upper driving element 2121a and a second lower driving element 2122a, wherein the second upper driving element 2121a and the second lower driving element 2122a are located on the same side of the driving assembly 20a, and the second upper driving element 2121a and the second lower driving element 2122a are symmetrically disposed with respect to the second friction plate 2223 a.

The second upper driving element 2121a includes a third piezoelectric ceramic plate 21212a and a third friction driving portion 21211a, and the second lower driving element 2122a includes a fourth piezoelectric ceramic plate 21222a and a fourth friction driving portion 21221a. The second friction plate 2223a is sandwiched between the third friction drive portion 21211a of the second upper drive element 2121a and the fourth friction drive portion 21221a of the second lower drive element 2122a, and the second carrier 222a is moved in the optical axis direction or in the adjustment direction by the cooperative driving of the third friction drive portion 21211a of the second upper drive element 2121a and the fourth friction drive portion 21221a of the second lower drive element 2122 a.

The second upper driving element 2121a and the second lower driving element 2122a are disposed in the second pre-pressing device 2302a, and the second upper driving element 2121a and the second lower driving element 2122a are pressed together with the second friction plate 2223a by the clamping action of the second pre-pressing device 2302 a. That is, the second pre-compression device 2302a provides a pre-compression force along a friction surface perpendicular to the second friction plate 2223a, and the second pre-compression device 2302a is capable of maintaining the second upper driving element 2121a and the second lower driving element 2122a in frictional contact with the second friction plate 2223a at the same time.

The connection line between the third friction driving portion 21211a of the second upper driving element 2121a and the fourth friction driving portion 21221a of the second lower driving element 2122a is perpendicular to the friction surface of the second friction plate 2223 a. This arrangement may enable the second upper driving element 2121a and the second lower driving element 2122a to simultaneously drive the second friction plate 2223a to move, so as to provide a greater thrust for the movement of the second carrier 222a, thereby generating a greater movement stroke, and the maximum stroke may reach 7mm.

In addition, the second carrier 222a can be kept stable in the driving assembly 20a by the structure in which the second upper driving member 2121a and the second lower driving member 2122a sandwich the second friction plate 2223a, avoiding the risk of rattling. The directions of the clamping forces generated by the second upper driving element 2121a and the second lower driving element 2122a are perpendicular to each other.

Specifically, the third piezoelectric ceramic plate 21212a of the second upper driving element 2121a is fixedly connected to the second precompression device 2302a, and the third friction driving portion 21211a of the second upper driving element 2121a is in frictional contact with the upper (lower) friction surface of the second friction plate 2223a under the action of the precompression force; the fourth piezoelectric ceramic plate 21222a of the second lower driving element 2122a is fixedly connected to the second pre-pressing device 2302a, the fourth friction driving portion 21221a of the second lower driving element 2122a is in frictional contact with the lower (upper) friction surface of the second friction plate 2223a under the action of the pre-pressing force, and the second friction plate 2223a is movable in the optical axis direction or in the adjustment direction under the synergistic action of the third friction driving portion 21211a of the second upper driving element 2121a and the fourth friction driving portion 21221a of the second lower driving element 2122 a.

Since the driving forces of the second upper driving element 2121a and the second lower driving element 2122a are transmitted to the second friction plate 2223a by friction, the second friction plate 2223a is driven to move without affecting the piezoelectric actuator in this process, and thus the service life of the piezoelectric actuator can be prolonged.

The second upper driving element 2121a and the second lower driving element 2122a may be separately controlled, so that debugging in driving is simpler. After the same power is supplied to the second upper driving element 2121a and the second lower driving element 2122a, the third piezoelectric ceramic plate 21212a of the second upper driving element 2121a and the fourth piezoelectric ceramic plate 21222a of the second lower driving element 2122a generate a plane type change of the traveling wave state symmetrical to the friction plane, so as to drive the third friction driving portion 21211a of the second upper driving element 2121a and the fourth friction driving portion 21221a of the second lower driving element 2122a to generate synchronous unidirectional yaw reciprocation.

Since the second upper driving element 2121a and the second lower driving element 2122a have the same vibration frequency, the probability of interference is reduced. After stopping applying the voltage, the second upper driving element 2121a and the second lower driving element 2122a may form a self-locking structure, so that the second friction plate 2223a and the second carrier 222a are kept at the current position, and the position is not changed along with external shake, so that the optical system of the variable-focus camera module 100a is kept unchanged, and further the influence caused by the imaging effect is avoided. The addition of a self-locking device to the variable-focus imaging module 100a is also eliminated, and the size of the variable-focus imaging module 100a is relatively reduced. Because of the self-locking structure formed by the second upper drive element 2121a and the second lower drive element 2122a, there is no need to keep the piezoelectric actuator active to maintain its position.

As shown in fig. 90a-b, the first driving element 211a and the second driving element 212a are disposed on opposite first and second sides of the zoom lens group 10a, respectively, which are opposite to each other with respect to a common axis of the first and second carriers.

In some embodiments of the application, as shown in fig. 90b, the overall height h of the first upper drive element 2111a and the first lower drive element 2112a and the first friction plate 2213a sandwiched between the first upper drive element 2111a and the first lower drive element 2112a is not greater than the overall height of the carrier body 2211a of the first carrier 221a, particularly not greater than the maximum height of the lens group, and the overall height h of the second upper drive element 2121a and the second lower drive element 2122a and the second friction plate 2223a sandwiched between the second upper drive element 2121a and the second lower drive element 2122a is not greater than the overall height of the carrier body 2221a of the second carrier 222a, particularly not greater than the maximum height of the lens group.

In other embodiments of the present application, as shown in fig. 90a, the overall height h of the first driving element 211a and the first friction mechanism 2151a and the first friction plate 2213a clamped between the first driving element 211a and the first friction mechanism 2151a is not greater than the overall height of the carrier body 2211a of the first carrier 221a, particularly not greater than the maximum height of the lens group, and the overall height h of the second driving element 212a and the second friction mechanism 2152a and the second friction plate 2223a clamped between the second driving element 212a and the second friction mechanism 2152a is also not greater than the overall height of the carrier body 2221a of the second carrier 222a, particularly not greater than the maximum height of the lens group.

It is noted that for the drive assembly 20a for driving the lens, the adjustable group is typically mounted in the receiving cavity of the carrier body of the drive carrier, and thus the aforementioned maximum height of the carrier body of the drive carrier is not greater, which ensures that this overall structural height is not greater or substantially not significantly greater than the maximum height of the lens group, which advantageously reduces the structural height of the overall camera module.

It should be further noted that the height h here refers to the structural dimensions of the first upper driving element 2111a, the first lower driving element 2112a, and the first friction plate 2213a sandwiched between the first upper driving element 2111a and the first lower driving element 2112a formed in the stacking direction, and is represented by the height h in fig. 90 b. The definition here regarding height applies equally well to the embodiment shown in fig. 90 a.

Since the height of the zoom lens group 10a is difficult to be reduced in the variable-focus image capturing module 100a, the present application avoids the increase in the height of the variable-focus image capturing module 100a from continuing on the basis of the height of the zoom lens group 10 a.

In some embodiments, as shown in fig. 86 to 87, the first and second pre-compression devices 2301a and 2302a respectively include an upper nip 231a, a lower nip 233a, and a connection 232a connecting the upper and lower nips 231a and 233 a.

The first pre-compression device 2301a may elastically clamp the first friction plate 2213a and the first driving element 211a and the first friction mechanism 2151a (or the first upper driving element 2111a and the first lower driving element 2112a arranged at both sides of the first friction plate 2213 a) between the upper clamp 231a and the lower clamp 233a of the first pre-compression device 2301a, and maintain the first driving element 211a and the first friction mechanism 2151a (or the first upper driving element 2111a and the first lower driving element 2112 a) in frictional contact with the first friction plate 2213a by a clamping force between the upper clamp 231a and the lower clamp 233a, so that the driving elements can drive the first friction plate 2213a to move, thereby driving the first carrier 221a to move.

As an example, for the embodiment in which the first upper driving element 2111a and the first lower driving element 2112a are disposed at both sides of the first friction plate 2213a, the upper nip 231a of the first pre-pressing device 2301a may be connected to the first piezoelectric ceramic plate 21111a of the first upper driving element 2111a, and the lower nip 233a of the first pre-pressing device 2301a may be connected to the second piezoelectric ceramic plate 21121a of the first lower driving element 2112a, whereby both the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a are pressed against the first friction plate 2213a, and the first friction driving portion 21112a of the first upper driving element 2111a and the second friction driving portion 21122a of the first lower driving element 2112a are kept in frictional contact with the first friction plate 2213a by the clamping force between the upper nip 231a and the lower nip 233a of the first pre-pressing device 2301 a.

In correspondence with the first pre-compression device 2301a described above, the second pre-compression device 2302a may elastically clamp the second friction plate 2223a and the second driving element 212a and the second friction mechanism 2152a (or the second upper driving element 2121a and the second lower driving element 2122a arranged on both sides of the second friction plate 2223 a) between the upper nip 231a and the lower nip 233a of the second pre-compression device 2302 a. The second driving element 212a and the second friction mechanism 2152a (or the second upper driving element 2121a and the second lower driving element 2122 a) are held in frictional contact with the second friction plate 2223a by the clamping force between the upper clamping portion 231a and the lower clamping portion 233a, so that the driving element can drive the second friction plate 2223a to move, thereby driving the second carrier 222a to move. The structure and features described above in connection with the first pre-compression device 2301a are similarly applicable to the second pre-compression device 2302a and are not described in detail herein.

The first pre-compression device 2301a and the second pre-compression device 2302a are respectively disposed on a first side and a second side of the driving assembly 20a, wherein the first side and the second side of the driving assembly 20a are opposite to each other based on the optical axis. Also, the first pre-compression device 2301a acts on the first driving element 211a, the second pre-compression device 2302a acts on the second driving element 212a, so that the first driving element 211a may be brought into close contact with the first friction plate 2213a to maintain friction under the action of the first pre-compression device 2301a, and the second driving element 212a may be brought into close contact with the second friction plate 2223a to maintain friction under the action of the second pre-compression device 2302 a.

The first pre-compression device 2301a and the second pre-compression device 2302a may have the same structure, for example, may be a steel plate having a certain elasticity, and provide a certain pre-compression force to the driving element 21a by the elasticity between the upper and lower clamp portions 231a and 233 a.

In some embodiments of the present application, as shown in fig. 89 and 90a, a first driving substrate 271a is provided between a first pre-compression device 2301a and a first driving element 211a, the first driving substrate 271a being electrically connected to the first driving element 211a for supplying current to the first driving element 211a, wherein the first driving substrate 271a is clamped on the first driving element 211a by the first pre-compression device 2301a, and

A second drive substrate 272a is arranged between the second pre-stressing means 2302a and the second drive element 212a, the second drive substrate 272a being electrically connected to the second drive element 212a for supplying an electric current to the second drive element 212a, wherein the second drive substrate 272a is clamped on the second drive element 212a by the second pre-stressing means 2302 a.

Fig. 88 is a perspective view of a drive substrate according to some embodiments of the application. As shown in fig. 88, the driving substrate 27a includes a first driving substrate 271a and a second driving substrate 272a, and the first driving substrate 271a and the second driving substrate 272a are electrically connected to a first driving element 211a (zoom driving element 211 a) and a second driving element 212a (focus driving element 212 a), respectively, to achieve circuit conduction of the driving assembly 20 a. Therefore, the first driving substrate 271a may also be referred to as a zoom substrate 271a, and the second driving substrate 272a may also be referred to as a focus substrate 272a.

As shown in fig. 89, as an example, the first driving substrate 271a may be disposed between the first pre-pressing device 2301a and the first driving element 211a, and the first driving substrate 271a is clamped on the first driving element 211a by the first pre-pressing device 2301a so that the first driving substrate 271a is electrically connected with the piezoelectric ceramic plate of the piezoelectric element. The second driving substrate 272a may be disposed between the second pre-pressing device 2302a and the second driving element 212a, and the second driving substrate 272a is clamped on the second driving element 212a by the second pre-pressing device 2302a, so that the second driving substrate 272a is electrically connected to the piezoelectric ceramic plate of the piezoelectric element.

The first and second driving substrates 271a and 272a may be disposed at first and second sides of the driving assembly 20a opposite to each other along the optical axis.

In some embodiments, as shown in fig. 88, the first driving substrate 271a includes a first conductive terminal 2711a, a second conductive terminal 2712a, and a connection tape 2713a connecting the first conductive terminal 2711a and the second conductive terminal 2712 a. Referring to fig. 90b, for example, the first conductive end 2711a of the first driving substrate 271a may be clamped on the first upper driving element 2111a by the upper clamping portion 231a of the first pre-compression device 2301a, and the second conductive end 2712a of the first driving substrate 271a may be clamped on the first lower driving element 2112a by the lower clamping portion 233a of the first pre-compression device 2301 a.

Similarly, the second driving substrate 272a includes a third conductive end 2721a, a fourth conductive end 2722a, and a connecting strap 2723a connecting the third conductive end 2721a and the fourth conductive end 2722a, wherein the third conductive end 2721a of the second driving substrate 272a is clamped to the second lower driving element 2122a by the lower clamping portion 233a of the second pre-compression device 2302a, and the fourth conductive end 2722a of the second driving substrate 272a is clamped to the second upper driving element 2121a by the upper clamping portion 231a of the second pre-compression device.

Specifically, the first conductive end 2711a of the first driving substrate 271a is disposed on the first piezoelectric ceramic plate 21111a of the first upper driving element 2111a through the upper nip 231a of the first pre-pressing device 2301a, the second conductive end 2712a of the first driving substrate 271a is disposed on the second piezoelectric ceramic plate 21121a of the first lower driving element 2112a through the lower nip 233a of the first pre-pressing device 2301a, and the second conductive end 2712a of the first driving substrate 271a extends in a direction toward the photosensitive assembly 30a to be electrically connected to the wiring board 31a. The corresponding structure is also applicable to the second driving substrate 272a, and will not be described herein.

As shown in fig. 90a-b, the second conductive end 2712a of the first driving substrate 271a is further provided with a first extension 27121a, which first extension 27121a extends inward (toward the optical axis) and is opposite to the first guide bar 241a based on the plane in which the first friction plate 2213a is located. That is, when the first guide 241a is disposed above the first carrier 221a, the first extension part 27121a is disposed below the first friction plate 2213a, and the first guide 241a and the first extension part 27121a are opposite to each other based on the first friction plate 2213a, so as to fully utilize the spatial position of the driving assembly 20a, which is beneficial to the integration of the variable-focus camera module 100 a.

Further, a position sensing element 28a may be provided on the first extension 27121a, and a sensing magnet may be provided at a position opposite to the position sensing element 28a on the first friction plate 2213a, and a change in position of the sensing magnet may be detected by the position sensing element 28a. Of course, in the present application, after the sensing magnet position is sensed to move, the moving information may be further transmitted to a processing element, and the processing element may determine and process the moving information of the movable carrier, so as to form a closed loop structure. The position sensing element 28a may be a hall element, an integrated body of a driving IC and a hall element, or other position sensing element 28a.

The first extension 27121a of the second conductive end 2712a and the body of the second conductive end 2712a may have a certain height difference, i.e. the first extension 27121a may be lower than the body of the second conductive end 2712a, or the first extension 27121a may be offset in a direction away from the first carrier 221a, so as to provide a certain movement space for the sensing magnet and the position sensing element 28 a.

The third conductive end 2721a of the second driving substrate 272a is disposed on the fourth piezoelectric ceramic plate 21222a of the second lower driving element 2122a through the lower nip 233a of the pre-pressing device 23a, the fourth conductive end 2722a of the second driving substrate 272a is disposed on the third piezoelectric ceramic plate 21212a of the second upper driving element 2121a through the upper nip 231a of the pre-pressing device 23a, and the fourth conductive end 2722a extends in a direction toward the photosensitive assembly 30a to be electrically connected to the wiring board 31a, similarly to the first driving substrate 271 a.

Further, the fourth conductive end 2722a is further provided with a second extension 27221a, and the second extension 27221a extends inward (toward the optical axis) and is opposite to the second guide bar 242a based on the plane of the second friction plate 2223 a. That is, when the second guide bar 242a is disposed below the second carrier 222a, the second extending portion 27221a is disposed above the second friction plate 2223a, and the second guide bar 242a and the second extending portion 27221a are opposite to each other based on the second friction plate 2223a, that is, the second guide bar 242a and the second extending portion 27221a are symmetrically disposed based on the second friction plate 2223a, so as to fully utilize the spatial position of the driving assembly 20a, which is beneficial for the integration of the variable-focus camera module 100 a.

Further, a position sensing element 28a may be provided on the second extension 27221a of the second driving substrate 272a, and a sensing magnet may be provided on the second friction plate 2223a at a position opposite to the position sensing element 28a, and a change in position of the sensing magnet may be detected by the position sensing element 28a. Of course, in the present application, after the sensing magnet position is sensed to move, the moving information may be further transmitted to a processing element, and the processing element may determine and process the moving information of the movable carrier, so as to form a closed loop structure. The position sensing element 28a may be a hall element, an integrated body of a driving IC and a hall element, or other position sensing element 28a.

The second extension 27221a of the fourth conductive end 2722a and the body of the fourth conductive end 2722a may have a certain height difference, that is, the second extension 27221a may be higher than the body of the fourth conductive end 2722a, or the second extension 27221a may be offset in a direction away from the second carrier 222a, so as to provide a certain movement space for the sensing magnet and the position sensing element 28 a.

In some embodiments, the first driving substrate 271a and the second driving substrate 272a are symmetrical with each other in the optical axis direction or in the adjustment direction, which not only simplifies the structural design of the driving substrate 27a, but also can cooperate with other elements in the driving assembly 20a to provide a certain avoidance space for the other elements, so that the structure of the driving assembly 20a is more compact.

In some embodiments, as shown in fig. 91-92, for the case of including the first carrier 221a and the second carrier 222a, the drive assembly 20a may also include a first carrier 2501a and a second carrier 2502a, respectively.

The first and second carrying mechanisms 2501a and 2502a may be configured in the same structural form. In fig. 92, the first support means 2501a and the second support means 2502a each have a plurality of positioning posts 251a forming a placement space, in particular, each have four positioning posts 251a, which are arranged at four corners of a rectangle.

The first driving element 211a is disposed in the disposition space of the first carrier 2501a under the grip of the first pre-press device 2301a, and the first conductive end 2711a and the second conductive end 2712a of the first driving substrate 271a are fixed on the positioning posts 251a of the first carrier 2501a outside the disposition space of the first carrier 2501a, respectively.

Similarly, the second driving element 212a is disposed in the installation space of the second carrying mechanism 2502a under the clamping of the second pre-pressing device 2302a, and the third conductive end 2721a and the fourth conductive end 2722a of the second driving substrate 272a are respectively fixed on the positioning posts 251a of the second carrying mechanism 2502a outside the installation space of the second carrying mechanism 2502 a.

The first bearing means 2501a is arranged between the first pre-stressing device 2301a and the driving housing 26a, so as to fixedly connect the first driving element 211a to the driving housing 26a via the first bearing means 2501 a.

The first driving element 211a is clamped in the first bearing mechanism 2501a through the first pre-pressing device 2301a, and a certain support and fixation are provided for the first driving element 211a through the first bearing mechanism 2501 a. Similarly, the second driving element 212a is clamped in the second bearing mechanism 2502a by the second pre-pressing device 2302a, and provides a certain support and fixation for the second driving element 212a by the second bearing mechanism 2502 a.

The structure and arrangement of the carrying mechanism will be described below with reference to fig. 92 by taking the carrying mechanism 25a as an example, and the same applies to the first carrying mechanism 2501a and the second carrying mechanism 2502a.

The support means 25a can comprise, for example, a rectangular body and a plurality of positioning posts 251a extending from the body, which in the mounted state extend, for example, toward the optical axis or toward the carrier body of the drive carrier 22 a. The plurality of positioning posts 251a form a mounting space of a U-shaped opening.

Specifically, as shown in fig. 92, four positioning posts 251a are provided on the carrying mechanism 25a, for example. The driving substrate 27a may be disposed on the four positioning posts of the carrying mechanism 25a, and electrically connect the driving substrate 27a with the driving element 21a, and the carrying mechanism 25a may provide a mounting plane with good flatness for the driving substrate 27 a.

Specifically, the first conductive end and the second conductive end of the driving substrate 27a may be fixed to the four positioning posts 251a of the bearing mechanism 25a by gluing or welding, respectively, on the outer side, see also fig. 89. In the mounted state, the first conductive end and the second conductive end of the driving substrate 27a are parallel to each other and to the adjustment direction of the driving assembly 20a, i.e., to the optical axis direction of the lens group. It should be noted that the number and the structural form of the positioning posts 251a may be set and changed as needed, and are not limited to the form given as examples.

Also, with the aforementioned first and second driving substrates 271a and 272a, the first and second carrying mechanisms 2501a and 2502a can define the lengths of the first and second conductive ends 2711a and 2712a of the first driving substrate 271a, the connection width of the connection strap 2713a, and the lengths of the third and fourth conductive ends 2721a and 2722a of the second driving substrate 272a, the connection width of the connection strap 2723a, respectively. The length is the dimension in the direction of the optical axis or in the adjustment direction, and the width is the dimension in the height direction. I.e. the length and height of the carrying means 25a provide a reference basis for the length and height of the drive base plate 27 a.

Optionally, the carrying mechanism 25a further comprises a carrying connection 252a, said carrying connection 252a likewise protruding from the body of the carrying mechanism 25a but protruding opposite to the positioning post 251a of the carrying mechanism 25a, i.e. the positioning post 251a and the carrying connection 252a are on two opposite sides of the body of the carrying mechanism 25 a. The bearing connection portion 252a is fixedly connected with the driving housing 26a, wherein the driving housing 26a includes an upper housing 261a and a lower housing 262a connected with the upper housing 261a into a closed structure. Specifically, as shown in fig. 93, a bearing connection portion 252a protruding from the bearing mechanism 25a is disposed on a side of the bearing mechanism 25a facing away from the optical axis, and the bearing connection portion 252a is fixed to the driving housing 26a and exposed to an outer surface of the driving housing 26a, so as to fix the bearing mechanism 25a and the driving housing 26 a.

As shown in fig. 91 to 92, the positioning posts 251a of the support means 25a each project toward the respective drive carrier or transversely to the optical axis, whereby the four positioning posts 251a of the support means 25a form a receiving space. The drive element 21a can be arranged in a clamped manner by the pre-stressing device 23a in the installation space of the support means 25a, so that the pre-stressing device 23a engages in the support means 25 a. The support means 25a can thus both provide support for the drive element 21a and the pre-stressing device 23a and fix the position of the drive element 21a and the pre-stressing device 23 a.

The bearing mechanism 25a is disposed between the pre-compression device 23a and the driving housing 26a, and the bearing connection portion 252a of the bearing mechanism 25a is fixed to the driving housing 26a, so that the driving element 21a, the pre-compression device 23a and the driving housing 26a are fixedly connected by the bearing mechanism 25 a.

Fig. 93 is a perspective view of a drive assembly 20a according to some embodiments of the present application, including a drive housing 26a having an upper housing 261a and a lower housing 262 a. The drive housing 26a is used for accommodating components such as the drive element 21a, the drive carrier 22a, the friction plate, the pre-pressing device 23a, the friction mechanism 215a, the guide device 24a, the carrying mechanism 25a, the drive substrate 27a and the like therein, for protecting the respective elements, and preventing dust from falling.

As shown in fig. 93, the driving housing 26a includes an upper housing 261a and a lower housing 262a, and the lower housing 262a has a U-shaped groove structure with an upward opening, so that other components of the driving assembly 20a can be directly placed into the driving housing 26a through the opening.

The outer side wall of the lower housing 262a is provided with a connecting groove 2623a, and the bearing connecting portion 252a of the bearing mechanism 25a may be embedded in the connecting groove 2623a to be fixed. Alternatively, the bearing connection 252a of the bearing means 25a is configured as a T-shaped insert which can be inserted into the connection groove 2623a of the lower housing 262a for fastening.

In addition, as shown in fig. 93, overlapping grooves having different heights may be further provided on the sidewall of the lower case 262a, the overlapping grooves including an inner overlapping groove 2621a and an outer overlapping groove 2622a, the inner overlapping groove 2621a having a height higher than that of the outer overlapping groove 2622a, such that the light rays which are not shielded by the outer overlapping groove 2622a are shielded by the inner overlapping groove 2621a to prevent the entry of parasitic light.

According to another aspect of the present invention, there is also provided an image capturing module 100a, including:

the drive assembly 20a for driving the lens as described in the various embodiments;

a photosensitive member 30a for receiving the optical signal and converting the received optical signal into an image signal;

the lens group 10a comprises a fixed group 11a and an adjustable group, wherein the driving element 21a of the driving assembly 20a is arranged to drive the adjustable group of the lens group 10 a.

Alternatively, the adjustable group of the lens group 10a includes a zoom group 11a and a focus group 12a, wherein the driving carrier 22a of the driving assembly 20a includes a first carrier 221a for carrying the zoom group 11a and a second carrier 222a for carrying the focus group 12a, wherein the first carrier 221a and the second carrier 222a are coaxially arranged in sequence in the adjustment direction and can be driven separately.

According to the present application, the camera module 100a uses the driving assembly 20a including, in particular, the piezoelectric actuator as the driver, which not only can provide a sufficiently large driving force, but also can provide driving performance with higher precision and longer stroke, so as to meet the zoom requirement of the variable-focus camera module 100 a.

Further, the piezoelectric actuator of the driving assembly 20a may have a relatively small size to better adapt to the trend of the light weight and the slim profile of the camera module. In addition, the variable-focus camera module 100a adopts a reasonable layout scheme to layout the piezoelectric actuator in the driving assembly 20a, so as to meet the structural and dimensional requirements of the variable-focus camera module 100 a.

Fig. 94 is a flow chart of an assembly method of the driving assembly 20a for driving a lens according to some embodiments of the present application. As shown in fig. 94, the assembly method of the driving assembly 20a for driving a lens proposed herein includes the steps of:

S1, embedding a pre-compression device 23a into a bearing mechanism 25a so as to fixedly connect the pre-compression device 23a with the bearing mechanism 25 a;

s2, electrically connecting the two driving elements 21a to the driving substrate 27a, wherein;

S3, placing the driving substrate 27a between an upper clamping part and a lower clamping part of the pre-pressing device 23 a;

S4, placing the friction plate between the two driving elements 21a, enabling the friction plate to be fixedly connected with the driving carrier 22a, and clamping the two driving elements 21a through the pre-compression device 23a so as to enable the two driving elements to be respectively in friction contact with the friction plate;

s5, fixedly connecting the bearing mechanism 25a with the driving shell 26 a.

Specifically, in step S1, the pre-compression device 23a is embedded in the carrying mechanism 25a, so as to fixedly connect the pre-compression device 23a with the carrying mechanism 25 a. The precompression device 23a is inserted into the installation space of the support means 25a formed by the plurality of positioning studs 251a by its own structural or material elasticity and is fixed therein.

In step S2, the driving element 21a is electrically connected to the driving substrate 27a. In this step, the piezoelectric plates, for example, the piezoelectric ceramic plates 213a of the two driving elements 21a are electrically connected to the first conductive end and the second conductive end of the driving substrate 27a, respectively, and the friction driving portions 214a of the two driving elements 21a are disposed to face each other. In a later step, the drive substrate 27a is clamped to the drive element 21a also by means of the pre-stressing means 23 a.

In step S3, the driving substrate 27a is disposed between the upper nip 231a and the lower nip 233a of the precompression device 23 a. In this step, the upper and lower clamp parts 231a and 233a are respectively fixed to the first and second conductive ends of the driving substrate 27a, respectively, the driving substrate 27a and the driving element 21a are clamped in the pre-press device 23a by the upper and lower clamp parts 231a and 233a of the pre-press device 23a, and the driving element 21a is further disposed in the disposition space of the bearing mechanism 25 a.

In step S4, the friction plate is interposed between the friction driving portions 214a of the two driving elements 21a, and the friction driving portions 214a of the two driving elements 21a sandwich the friction plate on both sides by the pre-pressing means 23a, respectively, and are held in frictional contact with the friction plate.

In addition, in step S4, the first conductive end and the second conductive end of the driving substrate 27a may be fixed to the positioning posts 251a of the bearing mechanism 25a, respectively, at the sides.

In step S5, the semi-finished product assembled in the above steps, i.e., the pre-assembled component, is placed into the lower housing 262a of the driving housing 26a, and the bearing connection portion 252a of the bearing structure 25a is inserted into the connection groove 2623a of the lower housing 262a, so as to fix the pre-assembled component with the lower housing 262a through the bearing structure 25 a. Then, the upper housing 261a is mounted to the lower housing 262a to complete the assembly of the driving assembly 20 a.

It should be noted that the working steps of the assembly method described above are equally applicable to a drive assembly 20a comprising a friction mechanism 215a, with the difference that only one of the drive elements 21a is replaced by one friction mechanism 215 a. In this case, since the friction mechanism 215a does not need to be electrically connected to the driving substrate 27a, the structure and the electrical connection steps of the driving substrate 27a can be simplified accordingly. The working steps of the assembly method described above are likewise applicable to drive assemblies 20a comprising one or more drive carriers 22a, in particular for a plurality of drive carriers, only the corresponding mounting steps have to be repeated.

Fig. 95 is a method of assembling an imaging module 100a according to some embodiments of the present application. As shown in fig. 95, according to another aspect of the present application, the present application also discloses a method for assembling a variable-focus camera module 100a, comprising the steps of:

S1, arranging a zooming group 12a and a focusing group 13a of a lens group 10a in a first carrier 221a and a second carrier 222a of a driving assembly 20a respectively;

S2, arranging the photosensitive assembly 30a on the light emitting side of the lens group 10 a;

S3, the driving substrate 27a of the driving assembly 20a is electrically connected with the circuit board 31a of the photosensitive assembly 30a, so that the circuit is conducted.

Specifically, in step S1, the zoom group 12a and the focus group 13a are respectively disposed in the first carrier 221a and the second carrier 222a of the driving assembly 20a, and then the assembling step of the driving assembly 20a is completed as described above.

Here, the optical axis orientations of the zoom group 12a and the focus group 13a may be adjusted to be coaxial with the adjustment directions of the first carrier 221a and the second carrier 222a or coaxial with the geometric axes of the first carrier 221a and the second carrier 222 a.

In step S2, the light turning element 40a may be disposed on the light incident side of the zoom lens group 10a, and the photosensitive element 30a may be disposed on the light emitting side of the zoom lens group 10 a.

In step S3, the driving substrate 27a of the driving assembly 20a is electrically connected to the circuit board 31a of the photosensitive assembly 30a, so as to realize circuit conduction. Here, the photosensitive chip 32a, the electronic component 33a, and the like may be preassembled on the wiring board 31 a.

The technical scope of the present application is not limited to the above description, and those skilled in the art may make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present application, and these changes and modifications are all within the scope of the present application.

Claims

An anti-shake driving assembly, comprising:

an anti-shake fixing portion;

An anti-shake movable portion, wherein a photosensitive assembly including a photosensitive chip is adapted to be interlockably mounted to the anti-shake movable portion; and

An anti-shake driving part disposed between the anti-shake fixing part and the anti-shake movable part, the anti-shake driving part including a first piezoelectric actuator and a second piezoelectric actuator frictionally coupled to the anti-shake movable part;

Wherein the first piezoelectric actuator and the second piezoelectric actuator are arranged on opposite sides of the photosensitive assembly in parallel with each other, and the first piezoelectric actuator and the second piezoelectric actuator are adapted to actuate the anti-shake movable portion and the photosensitive assembly to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane about a Z axis perpendicular to the X axis and the Y axis.
The anti-shake driving assembly according to claim 1, wherein the first piezoelectric actuator and the second piezoelectric actuator are symmetrically arranged on opposite sides of the photosensitive assembly with respect to the photosensitive assembly with the X-axis or the Y-axis as symmetry axes.
The anti-shake drive assembly of claim 2, wherein the first and second piezoelectric actuators are traveling wave piezoelectric actuators, wherein the first piezoelectric actuator comprises a first piezoelectric ceramic plate and a first friction drive portion protruding from the first piezoelectric ceramic plate, the first piezoelectric ceramic plate being adapted to deform after being electrically driven to drive the first friction drive portion to reciprocate in a unidirectional yaw; the second piezoelectric actuator comprises a second piezoelectric ceramic plate and a second friction driving part protruding out of the second piezoelectric ceramic plate, and the second piezoelectric ceramic plate is suitable for being deformed after being electrically driven so as to drive the second friction driving part to do unidirectional deflection reciprocating motion.
The anti-shake driving assembly according to claim 3, wherein the first piezoelectric actuator is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move in the direction set by the X-axis, and the second piezoelectric actuator is adapted to deform in the direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move in the direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis, and the second piezoelectric actuator is adapted to deform in the direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the X-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the X-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the X-axis to actuate the photosensitive assembly to rotate about the Z-axis in the XOY plane by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the Y-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the Y-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the Y-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the Y-axis to actuate the photosensitive assembly by the first piezoelectric actuator and the second piezoelectric actuator to rotate about the Z-axis in the XOY plane.
The anti-shake drive assembly of claim 4, wherein the first and second piezoelectric actuators have a rectangular structure having two opposite long sides along a length direction and two opposite short sides along a width direction.
The anti-shake drive assembly according to claim 5, wherein a length direction of the first and second piezoelectric actuators is the X-axis direction, and a short-side direction of the first and second piezoelectric actuators is the Y-axis direction.
The anti-shake drive assembly according to claim 5, wherein a length direction of the first and second piezoelectric actuators is the Y-axis direction, and a short side direction of the first and second piezoelectric actuators is the X-axis direction.
The anti-shake driving assembly according to claim 5, wherein the anti-shake movable portion is smoothly supported on a first friction driving portion of the first piezoelectric actuator and a second friction driving portion of the second piezoelectric actuator.
The anti-shake driving assembly according to claim 8, wherein the first piezoelectric ceramic plate is disposed at the anti-shake fixing portion, the first friction driving portion is frictionally coupled to the anti-shake movable portion, the second piezoelectric ceramic plate is disposed at the anti-shake fixing portion, and the second friction driving portion is frictionally coupled to the anti-shake movable portion.
The anti-shake drive assembly of claim 9, wherein the first and second piezoelectric actuators have the same height dimension.
The anti-shake drive assembly of claim 10, wherein the first and second piezoelectric actuators have a height dimension of 0.7mm-0.9mm.
The anti-shake driving assembly according to claim 8, wherein the anti-shake fixing portion has a receiving cavity, and the anti-shake movable portion is suspended in the receiving cavity of the anti-shake fixing portion.
The anti-shake driving assembly according to claim 12, wherein the anti-shake fixing portion includes a base and an upper cover that is fastened to the base, and the receiving cavity is formed between the upper cover and the base.
The anti-shake driving assembly according to claim 13, wherein the anti-shake movable portion has a gap with the base, and the anti-shake movable portion has a gap with the upper cover, in such a manner that the anti-shake movable portion is suspended in the receiving cavity of the anti-shake fixing portion.
The anti-shake drive assembly of claim 14, wherein the anti-shake movable portion comprises a carrier body and a carrier extension arm extending outwardly from the carrier body, wherein the first friction drive portion of the first piezoelectric actuator and the second friction drive portion of the second piezoelectric actuator are frictionally coupled to a lower surface of the carrier extension arm.
The anti-shake drive assembly of claim 15, wherein the carrier body has a mounting groove below the carrier extension arm, wherein the photosensitive assembly is adapted to fit within the mounting groove.
The anti-shake drive assembly of claim 15, wherein the carrier extension arm and the base have a receiving space therebetween, the first and second piezoelectric actuators being received within the receiving space.
The anti-shake drive assembly of claim 15, wherein the anti-shake movable portion further comprises a friction plate formed on a lower surface of the carrier extension arm, the first friction drive portion of the first piezoelectric actuator and the second friction drive portion of the second piezoelectric actuator being frictionally coupled to the friction plate.
The anti-shake drive assembly of claim 18, further comprising a drive substrate disposed between the anti-shake movable portion and the base, the drive substrate including at least one conductive end and a connection end extending outward from the conductive end, the first and second piezoelectric actuators being electrically connected to the at least one electrical connection end.
The anti-shake drive assembly of claim 19, wherein the at least one conductive end comprises a first conductive end and a second conductive end, the first piezoelectric actuator being electrically connected to the first conductive end, the second piezoelectric actuator being electrically connected to the second conductive end.
The anti-shake driving assembly according to claim 19, wherein the anti-shake movable portion has a slot formed in a side wall of the carrier body, the slot being configured to allow a wiring board of the photosensitive assembly to protrude from the slot to the seating slot.
The anti-shake drive assembly of claim 21, wherein the base has an opening formed in a sidewall thereof, and wherein the connection end extends outwardly from the at least one conductive end and through the opening.
The anti-shake drive assembly of claim 22 wherein the opening and the slot have a height differential.
The anti-shake driving assembly according to claim 19, further comprising a pre-compression device disposed between the anti-shake driving portion and the anti-shake fixing portion to force the anti-shake driving portion to be frictionally coupled to the anti-shake movable portion by pre-compression provided by the pre-compression device.
The anti-shake driving assembly according to claim 24, wherein the pre-compression device comprises a first elastic element disposed between the base and a first piezoelectric ceramic plate of the first piezoelectric actuator to generate the pre-compression force by an elastic force of the first elastic element itself to force a first friction driving portion of the first piezoelectric actuator to abut against the friction plate in such a manner that the first friction driving portion of the first piezoelectric actuator is frictionally coupled to the friction plate; the pre-pressing device further comprises a second elastic element arranged between the substrate and a second piezoelectric ceramic plate of the second piezoelectric actuator, so that the pre-pressing force generated by the elastic force of the second elastic element forces a second friction driving part of the second piezoelectric actuator to abut against the friction plate in such a way that the second friction driving part of the second piezoelectric actuator is frictionally coupled to the friction plate.
The anti-shake drive assembly of claim 25, wherein the first and second elastic elements have thickness dimensions of 10um to 50um.
The anti-shake driving assembly according to claim 25, further comprising a guide device provided between an upper surface of the carrier extension arm and the upper cover, the guide device being adapted to guide the anti-shake movable portion to move in the XOY plane set by the X axis and the Y axis.
A camera module, comprising:

An optical lens;

The optical lens is held on a photosensitive path of the photosensitive assembly; and

The anti-shake driving assembly according to any one of claims 1 to 27, wherein the photosensitive assembly is mounted to an anti-shake movable portion of the anti-shake driving assembly.
An anti-shake driving assembly, comprising:

an anti-shake fixing part with a containing cavity;

an anti-shake movable part suspended in the accommodation chamber of the anti-shake fixing part to divide the accommodation chamber into an upper part and a lower part by the anti-shake movable part, wherein the anti-shake movable part is adapted to mount a photosensitive assembly thereon;

An anti-shake driving part disposed at a lower portion of the receiving chamber, wherein the anti-shake driving part includes a first piezoelectric actuator and a second piezoelectric actuator frictionally coupled to the anti-shake movable part, the first piezoelectric actuator and the second piezoelectric actuator being adapted to actuate the anti-shake movable part to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane around a Z axis perpendicular to the X axis and the Y axis; and

The guide element is clamped at the upper part of the accommodating cavity, and the clamped guide element generates a pre-pressure force for forcing the anti-shake movable part to abut against the first piezoelectric actuator and the second piezoelectric actuator so that the first piezoelectric actuator and the second piezoelectric actuator are frictionally coupled with the anti-shake movable part through the pre-pressure force.
The anti-shake driving assembly according to claim 29, wherein the anti-shake fixing portion includes a base and an upper cover that is fastened to the base, an upper portion of the housing chamber is formed between the upper cover and the anti-shake movable portion, and a lower portion of the housing chamber is formed between the base and the anti-shake movable portion.
The anti-shake driving assembly according to claim 30, wherein the anti-shake movable portion has a gap with the base, and the anti-shake movable portion has a gap with the upper cover, in such a manner that the anti-shake movable portion is suspended in the receiving cavity of the anti-shake fixing portion.
The anti-shake drive assembly according to claim 31, wherein the anti-shake movable portion is smoothly sandwiched between the first piezoelectric actuator and the guide member and between the second piezoelectric actuator and the guide member.
The anti-shake drive assembly of claim 32, wherein the anti-shake movable portion comprises a carrier body and a carrier extension arm extending outwardly from the carrier body, wherein the guide element is sandwiched between a lower surface of the upper cover and an upper surface of the carrier extension arm, the first and second piezoelectric actuators being frictionally coupled to the lower surface of the carrier extension arm.
The anti-shake drive assembly of claim 33, wherein the anti-shake movable portion further comprises a friction plate formed on a lower surface of the carrier extension arm, the first and second piezoelectric actuators being frictionally coupled to the friction plate.
The anti-shake driving assembly according to claim 34, further comprising a first guide groove concavely formed on an upper surface of the carrier extension arm, the guide member being received in the first guide groove, the guide member and the first guide groove forming a guide means for guiding the anti-shake movable portion and the photosensitive assembly to move, wherein at least a portion of the guide member protrudes from the groove and abuts against a lower surface of the upper cover in such a manner that the guide member is sandwiched between the lower surface of the upper cover and the upper surface of the carrier extension arm.
The anti-shake drive assembly of claim 35 wherein the guide elements are balls.
The anti-shake drive assembly of claim 35 wherein the guide element is a slider.
The anti-shake driving assembly according to claim 36, wherein the first guide groove extends in a direction set in the X-axis, and the guide device further comprises a second guide groove concavely formed at a lower surface of the upper cover, the second guide groove extending in a direction set in the Y-axis.
The anti-shake driving assembly according to claim 36, wherein the first guide groove extends in a direction set in the Y-axis, and the guide device further comprises a second guide groove concavely formed at a lower surface of the upper cover, the second guide groove extending in a direction set in the X-axis.
The anti-shake drive assembly of claim 38 or 39 wherein the first guide section and the second guide slot are oppositely disposed and interdigitated.
The anti-shake drive assembly of claim 34, wherein the first and second piezoelectric actuators have the same height dimension.
The anti-shake drive assembly of claim 41 wherein the first and second piezoelectric actuators have a height dimension of 0.7mm-0.9mm.
The anti-shake drive assembly of claim 41 wherein the first and second piezoelectric actuators are traveling wave piezoelectric actuators, wherein the first piezoelectric actuator comprises a first piezoelectric ceramic plate and a first friction drive portion protruding from the first piezoelectric ceramic plate, the first piezoelectric ceramic plate being adapted to deform after being electrically driven to drive the first friction drive portion to reciprocate in a unidirectional yaw; the second piezoelectric actuator comprises a second piezoelectric ceramic plate and a second friction driving part protruding out of the second piezoelectric ceramic plate, and the second piezoelectric ceramic plate is suitable for being deformed after being electrically driven so as to drive the second friction driving part to do unidirectional deflection reciprocating motion.
The anti-shake drive assembly of claim 42 wherein the first piezoelectric ceramic plate is disposed on the anti-shake mount, the first friction drive is frictionally coupled to the anti-shake movable portion, the second piezoelectric ceramic plate is disposed on the anti-shake mount, and the second friction drive is frictionally coupled to the anti-shake movable portion.
The anti-shake drive assembly of claim 41 wherein the first and second piezoelectric actuators are disposed parallel to each other on opposite sides of the photosensitive assembly.
The anti-shake drive assembly of claim 45 wherein the first and second piezoelectric actuators are symmetrically disposed on opposite sides of the photosensitive assembly with respect to the photosensitive assembly about the X-axis or the Y-axis as an axis of symmetry.
The anti-shake drive assembly of claim 46 wherein the first piezoelectric actuator is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly for movement in the direction set by the X-axis, and the second piezoelectric actuator is adapted to deform in the direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly for movement in the direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly by the first and second piezoelectric actuators for movement in the direction set by the X-axis;

Wherein the first piezoelectric actuator is adapted to deform in a direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis, and the second piezoelectric actuator is adapted to deform in the direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the X-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the X-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the X-axis to actuate the photosensitive assembly to rotate about the Z-axis in the XOY plane by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the Y-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the Y-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the Y-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the Y-axis to actuate the photosensitive assembly by the first piezoelectric actuator and the second piezoelectric actuator to rotate about the Z-axis in the XOY plane.
The anti-shake drive assembly of claim 33, further comprising a drive substrate disposed between the anti-shake movable portion and the base, the drive substrate including at least one conductive end and a connection end extending outward from the conductive end, the first and second piezoelectric actuators being electrically connected to the at least one electrical connection end.
The anti-shake drive assembly of claim 48 wherein the at least one conductive end comprises a first conductive end and a second conductive end, the first piezoelectric actuator being electrically connected to the first conductive end and the second piezoelectric actuator being electrically connected to the second conductive end.
The anti-shake drive assembly of claim 48 wherein the anti-shake movable portion has a slot formed in a side wall of the carrier body, the slot configured to allow a wiring board of the photosensitive assembly to protrude from the slot out of the seating slot.
The anti-shake drive assembly of claim 50 wherein the base has an opening formed in a sidewall thereof, and wherein the at least one conductive end of the connection terminal extends outwardly through the opening.
The anti-shake drive assembly of claim 51 wherein the opening and the slot have a height differential.
The anti-shake driving assembly according to claim 33, further comprising a pre-compression device disposed between the anti-shake driving portion and the anti-shake fixing portion to force the anti-shake driving portion to be frictionally coupled to the anti-shake movable portion by pre-compression provided by the pre-compression device.
The anti-shake drive assembly of claim 53 wherein the pre-compression device comprises a first elastic element disposed between the base and a first piezoelectric ceramic plate of the first piezoelectric actuator to generate the pre-compression force by an elastic force of the first elastic element itself to force a first friction drive portion of the first piezoelectric actuator to abut against the friction plate in such a manner that the first friction drive portion of the first piezoelectric actuator is frictionally coupled to the friction plate; the pre-pressing device further comprises a second elastic element arranged between the substrate and a second piezoelectric ceramic plate of the second piezoelectric actuator, so that the pre-pressing force generated by the elastic force of the second elastic element forces a second friction driving part of the second piezoelectric actuator to abut against the friction plate in such a way that the second friction driving part of the second piezoelectric actuator is frictionally coupled to the friction plate.
The anti-shake drive assembly of claim 54 wherein the first and second elastic elements have thickness dimensions of 10um to 50um.
A camera module, comprising:

An optical lens;

The optical lens is held on a photosensitive path of the photosensitive assembly; and

The anti-shake driving assembly according to any one of claims 29 to 55, wherein the photosensitive assembly is mounted to an anti-shake movable portion of the anti-shake driving assembly.
An anti-shake driving assembly, comprising:

an anti-shake fixing part with a containing cavity;

An anti-shake movable part suspended in a housing cavity of the anti-shake fixing part, wherein the anti-shake movable part is suitable for mounting a photosensitive assembly thereon, and the housing cavity is divided into a first part and a second part by the anti-shake movable part;

An anti-shake driving part and a pre-compression device provided at a second portion of the housing chamber, wherein the anti-shake driving part includes a first piezoelectric actuator and a second piezoelectric actuator frictionally coupled to the anti-shake movable part by the pre-compression device, the first piezoelectric actuator and the second piezoelectric actuator being adapted to actuate the anti-shake movable part to move in an XOY plane set by an X axis and a Y axis or to rotate in the XOY plane around a Z axis perpendicular to the X axis and the Y axis; and

A guide device provided in the first portion of the housing chamber for guiding the movement of the anti-shake movable portion in the direction set in the X axis and/or the direction set in the Y axis;

wherein, when the anti-shake driving portion is driven, a friction force between the anti-shake driving portion and the anti-shake movable portion is greater than a friction force encountered by the guide device at the first portion.
The anti-shake drive assembly of claim 57 wherein the anti-shake fixing portion comprises a base and an upper cover that snaps with the base, the receiving cavity is formed between the upper cover and the base, the first portion is formed between the upper cover and the anti-shake movable portion, and the second portion is formed between the base and the anti-shake movable portion.
The anti-shake drive assembly according to claim 58, wherein the anti-shake drive section and the pre-compression device are clampingly disposed between the anti-shake movable section and the base, and the guide device is clampingly disposed between the upper cover and the anti-shake movable section, wherein when the first and second piezoelectric actuators are driven, a friction force between the first and second piezoelectric actuators and the anti-shake movable section is greater than a friction force between the guide device and the upper cover.
The anti-shake drive assembly of claim 59 wherein the pre-compression device comprises a first elastic element disposed between the base and the first piezoelectric actuator to generate the pre-compression force by an elastic force of the first elastic element itself to force the first piezoelectric actuator to abut against the anti-shake movable portion in such a manner that the first piezoelectric actuator is frictionally coupled to the anti-shake movable portion; the pre-pressing device further includes a second elastic element disposed between the substrate and a second piezoelectric ceramic plate of the second piezoelectric actuator to force the second piezoelectric actuator to collide with the anti-shake movable portion by the pre-pressing force generated by the elastic force of the second elastic element itself in such a manner that the second piezoelectric actuator is frictionally coupled to the anti-shake movable portion.
The anti-shake drive assembly of claim 60, wherein the first and second elastic elements are formed by curing an adhesive.
The anti-shake drive assembly of claim 61 wherein the first and second elastic elements have thickness dimensions of 10um to 50um.
The anti-shake drive assembly of claim 60, wherein the anti-shake movable portion comprises a carrier body, a carrier extension arm extending outwardly from the carrier body, and a friction plate formed on a lower surface of the carrier extension arm, wherein the first and second piezoelectric actuators are frictionally coupled to the friction plate of the anti-shake movable portion by the first and second elastic elements.
The anti-shake drive assembly of claim 63 wherein the guide comprises a first guide groove concavely formed in the upper surface of the carrier extension arm and a ball disposed within the first guide groove, wherein at least a portion of the ball protrudes from the first guide groove and abuts against the lower surface of the upper cover in such a manner that there is friction between the ball and the lower surface of the upper cover when the anti-shake movable portion and the photosensitive assembly are actuated by the first and second piezoelectric actuators.
The anti-shake driving assembly according to claim 64, wherein the first guide groove extends in a direction set in the X-axis, and the guide device further comprises a second guide groove concavely formed on a lower surface of the upper cover, the second guide groove extending in a direction set in the Y-axis.
The anti-shake driving assembly according to claim 64, wherein the first guide groove extends in a direction set in the Y-axis, and the guide device further comprises a second guide groove concavely formed on a lower surface of the upper cover, the second guide groove extending in a direction set in the X-axis.
The anti-shake drive assembly of claim 65 or 66 wherein the first and second guide groove segments are oppositely disposed and interdigitated.
The anti-shake drive assembly of claim 63 wherein the guide comprises a channel concavely formed in the upper surface of the carrier extension arm and a slider disposed within the channel, wherein at least a portion of the slider protrudes from the channel and abuts the lower surface of the upper cover in such a manner that the slider is sandwiched between the lower surface of the upper cover and the upper surface of the carrier extension arm.
The anti-shake drive assembly of claim 64 wherein the anti-shake movable portion is smoothly supported on the first and second piezoelectric actuators.
The anti-shake drive assembly of claim 69 wherein the first and second piezoelectric actuators have the same height dimension.
The anti-shake drive assembly of claim 70 wherein the first and second piezoelectric actuators have a height dimension of 0.7mm-0.9mm.
The anti-shake drive assembly of claim 70, wherein the first and second piezoelectric actuators are traveling wave piezoelectric actuators, wherein the first piezoelectric actuator comprises a first piezoelectric ceramic plate and a first friction drive portion protruding from the first piezoelectric ceramic plate, the first piezoelectric ceramic plate being adapted to deform after being electrically driven to drive the first friction drive portion to reciprocate in a unidirectional yaw; the second piezoelectric actuator comprises a second piezoelectric ceramic plate and a second friction driving part protruding out of the second piezoelectric ceramic plate, and the second piezoelectric ceramic plate is suitable for being deformed after being electrically driven so as to drive the second friction driving part to do unidirectional deflection reciprocating motion.
The anti-shake drive assembly of claim 71, wherein the first piezoelectric ceramic plate is disposed at the anti-shake fixing portion, the first friction drive portion is frictionally coupled to the anti-shake movable portion, the second piezoelectric ceramic plate is disposed at the anti-shake fixing portion, and the second friction drive portion is frictionally coupled to the anti-shake movable portion.
The anti-shake drive assembly of claim 70 wherein the first and second piezoelectric actuators are disposed parallel to each other on opposite sides of the photosensitive assembly.
The anti-shake drive assembly of claim 74 wherein the first and second piezoelectric actuators are symmetrically disposed on opposite sides of the photosensitive assembly with respect to the photosensitive assembly about the X-axis or the Y-axis as symmetry axes.
The anti-shake drive assembly of claim 75 wherein the first piezoelectric actuator is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly for movement in the direction set by the X-axis, and the second piezoelectric actuator is adapted to deform in the direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly for movement in the direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly by the first and second piezoelectric actuators for movement in the direction set by the X-axis;

Wherein the first piezoelectric actuator is adapted to deform in a direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis, and the second piezoelectric actuator is adapted to deform in the direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the X-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the X-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the X-axis to actuate the photosensitive assembly to rotate about the Z-axis in the XOY plane by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the Y-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the Y-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the Y-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the Y-axis to actuate the photosensitive assembly by the first piezoelectric actuator and the second piezoelectric actuator to rotate about the Z-axis in the XOY plane.
The anti-shake drive assembly of claim 70, further comprising a drive substrate disposed between the anti-shake movable portion and the base, the drive substrate including at least one conductive end and a connection end extending outward from the conductive end, the first and second piezoelectric actuators being electrically connected to the at least one electrical connection end.
The anti-shake drive assembly of claim 77, wherein the at least one conductive end comprises a first conductive end and a second conductive end, the first piezoelectric actuator being electrically connected to the first conductive end and the second piezoelectric actuator being electrically connected to the second conductive end.
The anti-shake drive assembly of claim 78, wherein the anti-shake movable portion has a slot formed in a side wall of the carrier body, the slot configured to allow a wiring board of the photosensitive assembly to protrude from the slot to the seating slot.
The anti-shake drive assembly of claim 79, wherein the base has an opening formed in a sidewall thereof, and wherein the at least one conductive end of the connection terminal extends outwardly through the opening.
The anti-shake drive assembly of claim 80 wherein the opening and the slot have a height differential.
A camera module, comprising:

An optical lens;

The optical lens is held on a photosensitive path of the photosensitive assembly; and

The anti-shake driving assembly according to any one of claims 57 to 81, wherein the photosensitive assembly is mounted to an anti-shake movable portion of the anti-shake driving assembly.
An anti-shake driving assembly, comprising:

An anti-shake fixing portion having a first mounting surface adapted to mount a driving substrate thereon;

An anti-shake movable portion having a second mounting surface adapted to mount a photosensitive member thereon, the first mounting surface and the second mounting surface having a height difference therebetween;

a drive substrate mounted on the first mounting surface; and

And an anti-shake driving part electrically connected to the driving substrate and located between the anti-shake fixing part and the anti-shake movable part, wherein the anti-shake driving part is suitable for actuating the anti-shake movable part and the photosensitive assembly to move in an XOY plane set by an X axis and a Y axis or rotate in the XOY plane around a Z axis perpendicular to the X axis and the Y axis.
The anti-shake drive assembly of claim 83, wherein the drive substrate mounted to the first mounting surface extends from a first height of the anti-shake drive assembly and the wiring board of the photosensitive assembly mounted to the second mounting surface is adapted to extend from a second height of the anti-shake drive assembly.
The anti-shake drive assembly of claim 84, wherein a height difference between the first and second mounting surfaces is 0.1mm-0.15mm.
The anti-shake drive assembly of claim 85 wherein the drive substrate extends from a first side of the anti-shake drive assembly and the wiring board of the photosensitive assembly is adapted to extend from the first side of the anti-shake drive assembly.
The anti-shake drive assembly of claim 85 wherein the drive substrate extends from a first side of the anti-shake drive assembly and the wiring board of the photosensitive assembly is adapted to extend from a second side of the anti-shake drive assembly.
The anti-shake drive assembly of claim 87 wherein the first side is adjacent to the second side or the first side is opposite the second side.
The anti-shake drive assembly of claim 86, wherein the anti-shake fixing portion comprises a base and an upper cover that is snapped onto the base, the snapped upper cover and the base forming a receiving cavity therebetween, the anti-shake movable portion being suspended within the receiving cavity of the anti-shake fixing portion.
The anti-shake drive assembly of claim 89 wherein an inner bottom surface of the base forms the first mounting surface.
The anti-shake drive assembly of claim 90, wherein the base has an opening formed in a sidewall thereof, wherein the drive substrate extends from the opening to the first height out of the anti-shake drive assembly.
The anti-shake drive assembly of claim 91, wherein the anti-shake movable portion comprises a carrier body, a carrier extension arm extending outwardly from the carrier body, and a friction plate formed on a lower surface of the carrier extension arm, wherein the first and second piezoelectric actuators are frictionally coupled to the friction plate.
The anti-shake drive assembly of claim 92 wherein the carrier body has a seating groove below the carrier extension arm, an inner bottom surface of the seating groove forming the second mounting surface.
The anti-shake drive assembly of claim 93, wherein the anti-shake movable portion has a slot formed in a side wall of the carrier body and in communication with the seating slot, the slot configured to allow a wiring board of the photosensitive assembly to protrude from the slot out of the anti-shake drive assembly at the second height.
The anti-shake drive assembly of claim 94 wherein the opening and the slot have a height differential of 0.1mm-0.15mm.
The anti-shake drive assembly of claim 95 wherein the opening and the slot are located on the first side of the anti-shake drive assembly.
The anti-shake drive assembly of claim 91, wherein the drive substrate comprises at least one conductive end and a connection end extending outward from the conductive end, the first and second piezoelectric actuators being electrically connected to the at least one electrical connection end.
The anti-shake drive assembly of claim 97, wherein the at least one conductive end comprises a first conductive end and a second conductive end, the first piezoelectric actuator being electrically connected to the first conductive end and the second piezoelectric actuator being electrically connected to the second conductive end.
The anti-shake drive assembly of claim 97, wherein the connection end extends outwardly from the at least one conductive end and through the opening.
The anti-shake drive assembly of claim 83, wherein the anti-shake drive section comprises first and second piezoelectric actuators frictionally coupled to the anti-shake movable section, wherein the first and second piezoelectric actuators are disposed parallel to each other on opposite sides of the photosensitive assembly, and the first and second piezoelectric actuators are adapted to actuate the anti-shake movable section and the photosensitive assembly to move in an XOY plane set by X and Y axes or to rotate in the XOY plane about a Z axis perpendicular to the X and Y axes.
The anti-shake drive assembly of claim 100, wherein the first and second piezoelectric actuators are traveling wave piezoelectric actuators, wherein the first piezoelectric actuator comprises a first piezoelectric ceramic plate and a first friction drive portion protruding from the first piezoelectric ceramic plate, the first piezoelectric ceramic plate being adapted to deform after being electrically driven to drive the first friction drive portion to reciprocate in a unidirectional yaw; the second piezoelectric actuator comprises a second piezoelectric ceramic plate and a second friction driving part protruding out of the second piezoelectric ceramic plate, and the second piezoelectric ceramic plate is suitable for being deformed after being electrically driven so as to drive the second friction driving part to do unidirectional deflection reciprocating motion.
The anti-shake driving assembly according to claim 101, wherein the first piezoelectric actuator is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move in the direction set by the X-axis, and the second piezoelectric actuator is adapted to deform in a direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move in the direction set by the X-axis to actuate the anti-shake movable portion and the photosensitive assembly by the first and second piezoelectric actuators;

Wherein the first piezoelectric actuator is adapted to deform in a direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis, and the second piezoelectric actuator is adapted to deform in the direction set by the Y-axis to actuate the anti-shake movable portion and the photosensitive member to move in the direction set by the Y-axis by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the X-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the X-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the X-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the X-axis to actuate the photosensitive assembly to rotate about the Z-axis in the XOY plane by the first piezoelectric actuator and the second piezoelectric actuator;

Wherein the first piezoelectric actuator is adapted to deform in a first direction set along the Y-axis to actuate the anti-shake movable portion and the photosensitive assembly to move along the first direction set along the Y-axis, and the second piezoelectric actuator is adapted to deform in a second direction set along the Y-axis opposite to the first direction to actuate the anti-shake movable portion and the photosensitive assembly to move along a second direction set along the Y-axis to actuate the photosensitive assembly by the first piezoelectric actuator and the second piezoelectric actuator to rotate about the Z-axis in the XOY plane.
The anti-shake drive assembly of claim 102, wherein the anti-shake movable portion is smoothly supported on a first friction drive portion of the first piezoelectric actuator and a second friction drive portion of the second piezoelectric actuator.
The anti-shake drive assembly of claim 103, wherein the first piezoelectric ceramic plate is disposed at the anti-shake fixing portion, the first friction drive portion being frictionally coupled to the anti-shake movable portion; the second piezoelectric ceramic plate is disposed at the anti-shake fixing portion, and the second friction driving portion is frictionally coupled to the anti-shake movable portion.
The anti-shake drive assembly of claim 104 wherein the first and second piezoelectric actuators have the same height dimension
The anti-shake drive assembly of claim 105 wherein the first and second piezoelectric actuators have a height dimension of 0.7mm-0.9mm.
The anti-shake drive assembly according to claim 105, further comprising a pre-compression device disposed between the anti-shake drive portion and the anti-shake fixing portion to force the first friction drive portion of the first piezoelectric actuator and the second friction drive portion of the second piezoelectric actuator to be frictionally coupled to the anti-shake movable portion by pre-compression provided by the pre-compression device.
The anti-shake driving assembly according to claim 107, wherein the pre-compression device comprises a first elastic element disposed between the base and a first piezoelectric ceramic plate of the first piezoelectric actuator to generate the pre-compression force by an elastic force of the first elastic element itself to force a first friction driving portion of the first piezoelectric actuator to abut against the anti-shake movable portion in such a manner that the first friction driving portion of the first piezoelectric actuator is frictionally coupled to the anti-shake movable portion; the pre-pressing device further comprises a second elastic element arranged between the substrate and a second piezoelectric ceramic plate of the second piezoelectric actuator, so that the pre-pressing force generated by the elastic force of the second elastic element forces a second friction driving part of the second piezoelectric actuator to abut against the anti-shake movable part, and the second friction driving part of the second piezoelectric actuator is frictionally coupled with the anti-shake movable part.
A camera module, comprising:

An optical lens;

The optical lens is held on a photosensitive path of the photosensitive assembly; and

The anti-shake drive assembly of any one of claims 83-108 wherein the photosensitive assembly is mounted on a second mounting surface of an anti-shake movable portion of the anti-shake drive assembly.
An anti-shake method of a camera module is characterized by comprising the following steps:

Simultaneously driving a first piezoelectric actuator and a second piezoelectric actuator of the anti-shake driving part to move a photosensitive assembly arranged on the anti-shake movable part along a first direction; and

And simultaneously driving the first piezoelectric actuator and the second piezoelectric actuator of the anti-shake driving part to actuate the photosensitive assembly mounted on the anti-shake movable part to move along a second direction, wherein the first direction and the second direction are mutually perpendicular.
The method of claim 110, wherein the first and second piezoelectric actuators are disposed parallel to each other on opposite sides of the photosensitive assembly.
The method of claim 111, wherein the first direction is an X-axis direction and the second direction is a Y-axis direction.
The method of claim 111, wherein the first direction is a Y-axis direction and the second direction is an X-axis direction.
The anti-shake method of an image pickup module according to claim 112, wherein the first piezoelectric actuator and the second piezoelectric actuator have a rectangular structure, wherein a length direction of the first piezoelectric actuator and the second piezoelectric actuator is the X-axis direction, and a width direction of the first piezoelectric actuator and the second piezoelectric actuator is the Y-axis direction.
The anti-shake method of an image pickup module according to claim 114, wherein the first piezoelectric actuator and the second piezoelectric actuator are symmetrically arranged on opposite sides of the photosensitive member with the X-axis as a symmetry axis.
The method according to claim 115, wherein driving the first and second piezo-electric actuators of the anti-shake driving portion simultaneously to actuate the photosensitive member mounted on the anti-shake movable portion moves first along the first direction, comprising:

Driving the first piezoelectric actuator to deform along the length direction of the first piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and driving a photosensitive assembly arranged on the anti-shake movable part to move along the first direction; and

The second piezoelectric actuator is driven to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and the photosensitive assembly arranged on the anti-shake movable part is driven to move along the first direction.
The method according to claim 116, wherein driving the first and second piezoelectric actuators of the anti-shake driving section simultaneously to actuate the photosensitive member mounted to the anti-shake movable section is further moved in a second direction, comprising:

driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable part to move along the second direction, so as to drive the photosensitive assembly arranged on the anti-shake movable part to move along the second direction; and

The second piezoelectric actuator is driven to deform along the width direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and the photosensitive assembly arranged on the anti-shake movable part is driven to move along the second direction.
The anti-shake method of an image pickup module according to claim 113, wherein the first piezoelectric actuator and the second piezoelectric actuator are symmetrically arranged on opposite sides of the photosensitive member with the Y-axis as a symmetry axis.
The method according to claim 118, wherein driving the first and second piezoelectric actuators of the anti-shake driving section to actuate the photosensitive member mounted on the anti-shake driving section moves in the first direction, includes:

Driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable portion to move along the first direction so as to drive a photosensitive assembly mounted on the anti-shake movable portion to move along the first direction; and

The second piezoelectric actuator is driven to deform along the width direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and the photosensitive assembly arranged on the anti-shake movable part is driven to move along the first direction.
The method according to claim 119, wherein driving the first and second piezoelectric actuators of the anti-shake driving section simultaneously to actuate the photosensitive member mounted to the anti-shake movable section is further moved in a second direction, comprising:

Driving the first piezoelectric actuator to deform along the length direction of the first piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and driving a photosensitive assembly arranged on the anti-shake movable part to move along the second direction; and

The second piezoelectric actuator is driven to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and the photosensitive assembly arranged on the anti-shake movable part is driven to move along the second direction.
The method according to claim 110, wherein the anti-shake movable portion is suspended in a housing cavity of an anti-shake fixing portion, and the first and second piezoelectric actuators of the anti-shake driving portion are disposed between the anti-shake fixing portion and the anti-shake movable portion.
The anti-shake method of an image pickup module according to claim 121, wherein the anti-shake movable portion is smoothly supported on the first actuator and the second piezoelectric actuator.
The method of claim 122, wherein a driving substrate for conducting the first piezoelectric actuator and the second piezoelectric actuator and a circuit board of the photosensitive assembly are offset from each other in the housing cavity.
An anti-shake method of a camera module is characterized by comprising the following steps:

A first piezoelectric actuator for driving the anti-shake driving part to actuate the photosensitive assembly arranged on the anti-shake movable part to move along a first direction; and

And the second piezoelectric actuator of the anti-shake driving part is driven to move the photosensitive assembly mounted on the anti-shake movable part along a second direction, and the first direction and the second direction are parallel and opposite to each other so as to drive the photosensitive assembly to rotate through the first piezoelectric actuator and the second piezoelectric actuator.
The method of claim 124, wherein the first and second piezoelectric actuators are disposed parallel to each other on opposite sides of the photosensitive assembly.
The method of claim 125, wherein the first and second piezoelectric actuators are symmetrically disposed on opposite sides of the photosensitive assembly with the X-axis as an axis of symmetry.
The method of claim 126, wherein the first direction is a positive direction of an X-axis direction and the second direction is a negative direction of the X-axis direction.
The method of claim 126, wherein the first direction is a negative direction of an X-axis direction and the second direction is a positive direction of the X-axis direction.
The method of claim 125, wherein the first and second piezoelectric actuators are symmetrically arranged on opposite sides of the photosensitive assembly with the Y-axis as an axis of symmetry.
The method of claim 129, wherein the first direction is a positive Y-axis direction and the second direction is a negative Y-axis direction.
The method of claim 129, wherein the first direction is a negative direction of the Y-axis direction and the second direction is a positive direction of the Y-axis direction.
The method of claim 127 or 128, wherein driving the first piezoelectric actuator of the anti-shake driving portion to move the photosensitive member mounted to the anti-shake movable portion in the first direction includes:

Driving the first piezoelectric actuator to deform along the length direction of the first piezoelectric actuator so as to drive the anti-shake movable part to move along the first direction, and driving a photosensitive assembly arranged on the anti-shake movable part to move along the first direction;

Wherein, the second piezoelectric actuator of the anti-shake driving part is simultaneously driven to move the photosensitive assembly mounted on the anti-shake movable part along a second direction, comprising:

And meanwhile, the second piezoelectric actuator is driven to deform along the length direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and thus the photosensitive assembly arranged on the anti-shake movable part is driven to move along the second direction.
The method according to claim 130 or 131, wherein driving the first piezoelectric actuator of the anti-shake driving section to move the photosensitive member mounted to the anti-shake movable section in the first direction includes:

driving the first piezoelectric actuator to deform along the width direction thereof to actuate the anti-shake movable portion to move along the first direction so as to drive a photosensitive assembly mounted on the anti-shake movable portion to move along the first direction;

Wherein, the second piezoelectric actuator of the anti-shake driving part is simultaneously driven to move the photosensitive assembly mounted on the anti-shake movable part along a second direction, comprising:

and simultaneously driving the second piezoelectric actuator to deform along the width direction of the second piezoelectric actuator so as to drive the anti-shake movable part to move along the second direction, and driving the photosensitive assembly arranged on the anti-shake movable part to move along the second direction.
A drive assembly for driving a lens, comprising:

a drive carrier having a carrier body for carrying an adjustable group of lenses;

A drive element for providing a drive force for moving the drive carrier in an adjustment direction, wherein a structural space is formed between the drive element and a carrier body of the drive carrier;

The friction plate is arranged in the structural space between the driving element and the carrier body of the driving carrier, one end of the friction plate is fixedly connected with the carrier body of the driving carrier, and the other end of the friction plate is in functional connection with the driving element, so that the driving element can drive the friction plate to move along the adjustment direction.
The drive assembly for a lens of claim 134, wherein the friction plate disposed in the structural space between the drive element and the carrier body of the drive carrier divides the structural space into a first structural space and a second structural space opposite the first structural space.
The drive assembly for a lens of claim 134, wherein a position sensing element for sensing a moving position of the drive carrier or the friction plate is arranged in the first structural space, and a guide means for guiding the movement of the drive carrier in the adjustment direction is arranged in the second structural space opposite to the first structural space.
A drive assembly for a lens according to claim 136, wherein the drive carrier further comprises a connection end protruding outwardly from the carrier body of the drive carrier, the connection end having a connection hole, and the guide means comprises a guide rod passing through the connection hole of the connection end of the drive carrier parallel to the adjustment direction, so that the drive carrier is movable along the guide means under the drive of the drive element.
The drive assembly for a lens according to claim 137, wherein the connection end of the drive carrier includes a first connection end extending outwardly from the carrier body of the drive carrier and a second connection end extending outwardly from the carrier body of the drive carrier, wherein the first connection end and the second connection end are located on opposite sides of the carrier body from each other, respectively, and

The guide device comprises a first guide rod and a second guide rod, wherein the first guide rod passes through a first connecting hole of a first connecting end of the drive carrier, and the second guide rod passes through a second connecting hole of a second connecting end of the drive carrier, so that the drive carrier can move along the first guide rod and the second guide rod of the guide device under the drive of the drive element, and the first guide rod and the second guide rod are parallel to each other and are arranged along the adjustment direction.
The drive assembly for a lens of claim 138, wherein the second connecting end of the drive carrier further has a seating groove into which the friction plate is embedded and fixedly coupled with the carrier body of the drive carrier, wherein the seating groove is configured as a clamping rail between which the friction plate is clamped.
The drive assembly for driving a lens of claim 134, wherein the drive element is configured as a piezoelectric actuator comprising a piezoelectric plate and a friction drive portion secured to the piezoelectric plate, wherein the friction drive portion is operatively coupled to the friction plate so as to be capable of driving the friction plate to move in the adjustment direction.
A drive assembly for a lens according to claim 134, wherein a pre-compression device is provided to provide pre-compression to the drive element such that the drive element is held in frictional contact with the friction plate under the pre-compression force.
The drive assembly for driving a lens of claim 141, wherein a friction mechanism is disposed between the pre-compression device and the friction plate such that the friction plate is movably coupled to the pre-compression device by the friction mechanism, wherein the pre-compression device presses the friction mechanism against the friction plate.
The drive assembly for driving a lens of claim 142, wherein the driving element is provided on one side of a friction plate and the friction mechanism is provided on the opposite side of the friction plate such that the friction plate is sandwiched between the driving element and the friction mechanism by the pre-compression device such that the friction plate is movable in the adjustment direction by the driving of the driving element.
The drive assembly for driving a lens according to claim 143, wherein the pre-compression device comprises an upper nip portion, a lower nip portion, and a connecting portion connecting the upper and lower nip portions, wherein the pre-compression device elastically clamps the friction plate and the driving element and the friction mechanism disposed on both sides of the friction plate between the upper and lower nip portions of the pre-compression device.
A drive assembly for driving a lens according to claim 141, wherein one of the drive elements is provided on each of two opposite sides of the friction plate such that the friction plate is sandwiched between the two drive elements and is movable in the adjustment direction under cooperative driving of the two drive elements.
The drive assembly for driving a lens of claim 145, wherein the pre-compression device comprises an upper nip, a lower nip, and a connection connecting the upper and lower nips, wherein the pre-compression device elastically clamps the friction plate and the drive elements disposed on both sides of the friction plate between the upper and lower nips of the pre-compression device.
A drive assembly for a lens as recited in claim 146, wherein the drive assembly further comprises a drive substrate electrically connected to the drive element for delivering current to the drive element, wherein the drive substrate is clamped to the drive element by the pre-compression device.
The drive assembly for a lens of claim 147, wherein the drive substrate comprises a first conductive end, a second conductive end, and a connecting strap connecting the first and second conductive ends, wherein the first conductive end is clamped to the corresponding drive element by an upper clamp of the pre-compression device and the second conductive end is clamped to the corresponding drive element by a lower clamp of the pre-compression device.
The drive assembly for driving a lens according to claim 148, wherein the second conductive end of the drive substrate is provided with an extension that extends into the first structural space, wherein the position sensing element is provided on the extension and a sensing magnet is provided on the friction plate opposite to the position of the position sensing element.
The drive assembly for a lens of claim 149, wherein the drive assembly further comprises a carrier having a plurality of posts forming a seating space in which the drive element is disposed under the grip of the precompression device, wherein the drive substrate is secured to the posts of the carrier.
The drive assembly for a lens of claim 134, wherein the carrier further has a carrier connection fixedly coupled to the drive housing, wherein the drive housing comprises an upper housing and a lower housing coupled to the upper housing in a closed configuration.
The drive assembly for driving a lens of claim 142, wherein the friction mechanism comprises a groove or roller way configured on the pre-compression device and/or friction plate and a ball or slider disposed in the groove or roller way.
A camera module comprises

A drive assembly for driving a lens as claimed in any one of claims 134 to 152;

the photosensitive assembly is used for receiving the optical signal and converting the received optical signal into an image signal;

The lens group comprises a fixed group and an adjustable group, wherein a driving element of the driving assembly is used for driving the adjustable group of the lens group.
The camera module of claim 153, wherein the adjustable group of lens groups includes a zoom group and a focus group, wherein the drive carrier of the drive assembly includes a first carrier for carrying the zoom group and a second carrier for carrying the focus group, wherein the first and second carriers are coaxially arranged in sequence along the adjustment direction and are individually drivable.
A drive assembly for driving a lens, comprising:

A driving carrier including a first carrier and a second carrier for carrying at least one adjustable group of lenses, respectively, wherein the first carrier and the second carrier are sequentially arranged on the same axis along an adjustment direction and are capable of moving along the adjustment direction independently of each other;

a first driving element;

The first friction plate is arranged between the carrier main body of the first carrier and the first driving element, one end of the first friction plate is fixedly connected with the carrier main body of the first carrier, and the other end of the first friction plate is in functional connection with the first driving element;

A second driving element;

The second friction plate is arranged between the carrier main body of the second carrier and the second driving element, one end of the second friction plate is fixedly connected with the carrier main body of the second carrier, and the other end of the second friction plate is in functional connection with the second driving element;

Wherein a first drive element and a first friction plate operatively connected to the first drive element are located on a first side of the drive assembly, a second drive element and a second friction plate operatively connected to the second drive element are located on a second side of the drive assembly, the first and second sides being opposite each other with respect to the axis of the first and second carriers,

The first friction plate fixedly connected with the carrier body of the first carrier extends along the adjusting direction in a direction away from the second carrier, and the second friction plate fixedly connected with the carrier body of the second carrier extends along the adjusting direction in a direction away from the first carrier.
The drive assembly for driving a lens of claim 155, wherein the first drive element is disposed intermediate the drive assembly in the adjustment direction and the second drive element is disposed intermediate the drive assembly in the adjustment direction.
The drive assembly for driving a lens of claim 156, wherein the first and second drive elements are disposed parallel to each other along the adjustment direction.
The drive assembly for driving a lens of claim 155, wherein the first and second drive elements are configured as piezoelectric actuators each comprising a piezoelectric plate and a friction drive portion fixed to the piezoelectric plate, wherein the friction drive portion of the first drive element is operatively coupled to the first friction plate so as to be capable of driving the first friction plate to move in the adjustment direction, and the friction drive portion of the second drive element is operatively coupled to the second friction plate so as to be capable of driving the second friction plate to move in the adjustment direction.
The drive assembly for driving a lens of claim 158, wherein the first friction plate remains within the drive range of the first drive element during movement and the second friction plate remains within the drive range of the second drive element during movement.
The drive assembly for driving a lens of claim 159, wherein in the initial position, the friction drive portion of the first drive element is operatively coupled to the first friction plate at a location intermediate the first friction plate in the adjustment direction and/or the friction drive portion of the second drive element is operatively coupled to the second friction plate at a location intermediate the second friction plate in the adjustment direction.
The drive assembly for driving a lens of claim 159, wherein in the initial position, the friction drive portion of the first drive element is operatively connected to the first friction plate at one end of the first friction plate in the adjustment direction and/or the friction drive portion of the second drive element is operatively connected to the second friction plate at one end of the second friction plate in the adjustment direction.
The drive assembly for driving a lens of claim 159, wherein the drive assembly further comprises a guide for guiding the first and second carriers along the adjustment direction, wherein the guide comprises at least one guide rod that passes through the first and second carriers parallel to the adjustment direction such that the first and second carriers are movable along the guide.
The drive assembly for a lens barrel of claim 162, wherein the first carrier comprises a first connecting end extending outwardly from a carrier body of the first carrier and a second connecting end extending outwardly from a carrier body of the first carrier, wherein the first connecting end and the second connecting end are located on opposite sides of the carrier body of the first carrier, respectively, wherein the first connecting end of the first carrier has a first connecting hole, the second connecting end of the first carrier has a second connecting hole, and

The second carrier further comprises a first connection end extending outwards from the carrier body of the second carrier and a second connection end extending outwards from the carrier body of the second carrier, wherein the first connection end and the second connection end are respectively positioned at two sides of the carrier body of the second carrier, which are opposite to each other, wherein the first connection end of the second carrier is provided with a first connection hole, the second connection end of the second carrier is provided with a second connection hole,

Wherein the guiding means comprises a first guiding rod and a second guiding rod, wherein the first guiding rod passes through the second connecting hole of the second connecting end of the first carrier and the first connecting hole of the first connecting end of the second carrier, and the second guiding rod passes through the first connecting hole of the first connecting end of the first carrier and the second connecting hole of the second connecting end of the second carrier, so that the first carrier and the second carrier can be individually moved along the first guiding rod and the second guiding rod of the guiding means under the driving of the first driving element and the second driving element, respectively, wherein the first guiding rod and the second guiding rod are arranged parallel to each other along the adjustment direction.
The drive assembly for driving a lens of claim 163, wherein the first and second guide rods of the guide device have a height difference.
The drive assembly for driving a lens of claim 163, wherein the second connection end of the first carrier has a seating groove, the first friction plate is inserted into the seating groove of the second connection end and fixedly coupled with the carrier body of the first carrier, and the second connection end of the second carrier has a seating groove, and the second friction plate is inserted into the seating groove of the second connection end and fixedly coupled with the carrier body of the second carrier.
A drive assembly for driving a lens according to claim 163, wherein the drive assembly further comprises a first pre-compression device arranged to provide a pre-compression to the first drive element such that the first drive element is held in frictional contact with the first friction plate under the pre-compression force, and

The drive assembly further comprises a second pre-compression device arranged to provide a pre-compression to the second drive element such that the second drive element is held in frictional contact with the second friction plate under said pre-compression force.
The drive assembly for driving a lens of claim 166, wherein a first friction mechanism is disposed between the first pre-compression device and the first friction plate such that the first friction plate is movably coupled to the first pre-compression device by the first friction mechanism, and

And a second friction mechanism is arranged between the second pre-compression device and the second friction plate, so that the second friction plate is movably connected with the second pre-compression device through the second friction mechanism.
The drive assembly for driving a lens of claim 167, wherein the first driving member is provided on one side of the first friction plate, the first friction mechanism is provided on the opposite side of the first friction plate such that the first friction plate is sandwiched between the first driving member and the first friction mechanism, and the first friction plate is movable in the adjustment direction by the driving of the first driving member, and

The second friction plate is provided with a second driving element on one side face thereof and a second friction mechanism on the other opposite side face thereof such that the second friction plate is sandwiched between the second driving element and the second friction mechanism and is movable in the adjustment direction by the driving of the second driving element.
The drive assembly for driving a lens of claim 168, wherein the first and second pre-compression devices comprise an upper nip, a lower nip, and a connection connecting the upper and lower nips, respectively,

Wherein the first pre-compression device elastically clamps the first friction plate and the first driving element and the first friction mechanism arranged at both sides of the first friction plate between an upper clamping part and a lower clamping part of the first pre-compression device, and

The second pre-pressing device elastically clamps the second friction plate between the upper clamping portion and the lower clamping portion of the second pre-pressing device, and the second driving element and the second friction mechanism arranged at both sides of the second friction plate.
The drive assembly for driving a lens of claim 166, wherein one first driving member is provided on each of two opposite sides of the first friction plate such that the first friction plate is sandwiched between the two first driving members and movable in the adjustment direction by cooperative driving of the two first driving members, and

A second drive element is arranged on each of the two opposite sides of the second friction plate such that the second friction plate is clamped between the two second drive elements and is movable in the adjustment direction under the co-drive of the two second drive elements.
The drive assembly for driving a lens of claim 170, wherein the first and second pre-compression devices comprise an upper nip, a lower nip, and a connection connecting the upper and lower nips, respectively,

Wherein the first pre-compression device elastically clamps the first friction plate and the first driving element arranged at both sides of the first friction plate between the upper clamping part and the lower clamping part of the first pre-compression device, and

The second pre-compression device elastically clamps the second friction plate and the second driving element disposed at both sides of the second friction plate between the upper and lower clamping portions of the second pre-compression device.
The drive assembly for a lens of claim 171, wherein a first drive substrate is disposed between the first pre-compression device and the first drive element, the first drive substrate being electrically coupled to the first drive element for delivering current to the first drive element, wherein the first drive substrate is clamped to the first drive element by the first pre-compression device, and

And a second driving substrate is arranged between the second pre-compression device and the second driving element, and is electrically connected with the second driving element and used for conveying current to the second driving element, wherein the second driving substrate is clamped on the second driving element through the second pre-compression device.
The drive assembly for a lens of claim 172, wherein the first drive substrate comprises a first conductive end, a second conductive end, and a connecting strap connecting the first conductive end and the second conductive end, wherein the first conductive end of the first drive substrate is clamped to the corresponding drive element by an upper clamp of the first pre-compression device, the second conductive end of the first drive substrate is clamped to the corresponding drive element by a lower clamp of the first pre-compression device, and

The second driving substrate comprises a third conductive end, a fourth conductive end and a connecting belt for connecting the third conductive end and the fourth conductive end, wherein the third conductive end of the second driving substrate is clamped on a corresponding driving element through a lower clamping part of the second pre-compression device, and the fourth conductive end of the second driving substrate is clamped on the corresponding driving element through an upper clamping part of the second pre-compression device.
The drive assembly for a lens of claim 173, wherein the drive assembly further comprises first and second carriers each having a plurality of posts forming a placement space, wherein the first drive element is disposed in the placement space of the first carrier under the clamping of the first pre-compression device, and the first and second conductive ends of the first drive substrate are secured to the posts of the first carrier outside the placement space of the first carrier, respectively, and

The second driving element is arranged in the arrangement space of the second bearing mechanism under the clamping of the second pre-pressing device, and the third conductive end and the fourth conductive end of the second driving substrate are respectively fixed on the positioning column of the second bearing mechanism outside the arrangement space of the second bearing mechanism.
The drive assembly for a lens as recited in claim 174, wherein the first and second carrier mechanisms further each have a carrier connection fixedly connected to a drive housing, wherein the drive housing comprises an upper housing and a lower housing connected to the upper housing in a closed configuration.
The drive assembly for a lens of claim 167, wherein the first friction mechanism comprises a groove or roller way configured on a first pre-compression device and/or a first friction plate and a ball or slider disposed in the groove or roller way, and

The second friction means comprise grooves or roller tracks formed on the second pre-stressing means and/or the second friction plate, and balls or slides arranged in the grooves or roller tracks.
A camera module comprises

A drive assembly for driving a lens as claimed in any one of claims 155 to 176;

the photosensitive assembly is used for receiving the optical signal and converting the received optical signal into an image signal;

The lens group comprises a fixed group and an adjustable group, wherein a driving element of the driving assembly is used for driving the adjustable group of the lens group.
The camera module of claim 177, wherein the adjustable group of lens groups includes a zoom group and a focus group, wherein a first carrier of the drive assembly is configured to carry the first carrier of the zoom group and a second carrier of the drive assembly is configured to carry the focus group, wherein the first and second carriers are independently drivable by the first and second drive elements, respectively.
A drive assembly for driving a lens, comprising:

a drive carrier having a carrier body for carrying an adjustable group of lenses;

A driving element for providing a driving force for moving the driving carrier in an adjustment direction;

a carrying mechanism having a seating space in which the driving element is accommodated; and

And a driving substrate fixed on the carrying mechanism and electrically connected with the driving element accommodated in the accommodating space of the carrying mechanism for supplying current to the driving element.
The drive assembly for a lens according to claim 179, wherein the carrier mechanism comprises a plurality of positioning posts extending toward a carrier body of the drive carrier, the plurality of positioning posts forming a seating space of the U-shaped opening.
The drive assembly for a lens according to claim 180, wherein the drive substrate comprises a first conductive end, a second conductive end, and a connecting strap connecting the first conductive end and the second conductive end, wherein the first conductive end and the second conductive end of the drive substrate are secured to the positioning posts of the carrier mechanism.
The drive assembly for a lens of claim 181, wherein the carrier further has a carrier connection configured for secure connection with a drive housing of the drive assembly.
The drive assembly for a lens according to claim 182, wherein the drive housing comprises an upper housing and a lower housing connected to the upper housing in a closed structure, a connecting groove is provided on a side wall of the lower housing, and the bearing connection portion of the bearing mechanism is embedded in the connecting groove to be fixed.
The drive assembly for a lens according to claim 183, wherein the carrier connection of the carrier is configured as a T-shaped insert that fits into a connection slot of the lower housing for securement.
The drive assembly for a lens according to claim 183, wherein the lower housing side wall of the drive housing is further provided with an overlapping groove, the overlapping groove comprising an inner overlapping groove and an outer overlapping groove, the inner overlapping groove having a height greater than a height of the outer overlapping groove.
A drive assembly for a lens according to any one of claims 182 to 185, wherein the drive assembly further comprises a friction plate disposed between the carrier body of the drive carrier and the drive element, wherein one end of the friction plate is fixedly connected to the carrier body of the drive carrier and the other end is operatively connected to the drive element such that the drive element is capable of driving the friction plate to move.
A drive assembly for a lens according to claim 186, wherein a pre-compression device is provided to provide pre-compression to the drive element such that the drive element is held in frictional contact with the friction plate under the pre-compression force.
The drive assembly for driving a lens according to claim 187, wherein the carrier is arranged between the pre-compression device and the drive housing and supports the pre-compression device, the drive element and the drive carrier.
The drive assembly for driving a lens according to claim 188, wherein the carrier secures the pre-compression device and drive element to the drive housing.
The drive assembly for driving a lens according to claim 189, wherein a friction mechanism is provided between the pre-compression device and the friction plate such that the friction plate is movably connected to the pre-compression device by the friction mechanism, wherein the pre-compression device presses the friction mechanism against the friction plate.
The drive assembly for driving a lens of claim 190, wherein the drive element is disposed on one side of the friction plate and the friction mechanism is disposed on an opposite side of the friction plate such that the friction plate is clamped between the drive element and the friction mechanism by the pre-compression device such that the friction plate is movable in the adjustment direction by the drive of the drive element.
The drive assembly for driving a lens of claim 191, wherein the pre-compression device comprises an upper nip, a lower nip, and a connection connecting the upper and lower nips, wherein the pre-compression device elastically clamps the friction plate and the driving element and the friction mechanism disposed on both sides of the friction plate between the upper and lower nips of the pre-compression device.
The drive assembly for driving a lens according to claim 189, wherein one drive element is provided on each of two opposite sides of the friction plate such that the friction plate is sandwiched between the two drive elements and is movable in the adjustment direction under cooperative driving of the two drive elements.
The drive assembly for driving a lens according to claim 193, wherein the pre-compression device comprises an upper nip portion, a lower nip portion, and a connecting portion connecting the upper nip portion and the lower nip portion, wherein the pre-compression device elastically clamps the friction plate and the driving member disposed on both sides of the friction plate between the upper nip portion and the lower nip portion of the pre-compression device.
The drive assembly for driving a lens according to any one of claims 187-194, wherein the drive substrate is disposed between the pre-compression device and the drive element, wherein the drive substrate is clamped on the drive element by the pre-compression device.
The drive assembly for driving a lens of claim 195, wherein the first conductive end of the drive substrate is clamped to the corresponding drive element by an upper clamp of the pre-compression device and the second conductive end of the drive substrate is clamped to the corresponding drive element by a lower clamp of the pre-compression device.
The drive assembly for driving a lens of claim 196, wherein the second conductive end of the drive substrate is provided with an extension, wherein a position sensing element is provided on the extension and a sensing magnet is provided on the friction plate opposite the position of the position sensing element.
The drive assembly for driving a lens according to any one of claims 179-185, wherein the drive element is configured as a piezoelectric actuator comprising a piezoelectric plate and a friction drive portion secured to the piezoelectric plate, wherein the friction drive portion is operatively connected to the friction plate so as to be capable of driving the friction plate to move in the adjustment direction.
A drive assembly for a lens according to claim 187, wherein the drive assembly further comprises guide means arranged in sliding connection with the drive carrier such that the drive carrier is movable along the guide means under the drive of the drive element.
The drive assembly for driving a lens according to claim 199, wherein the guide means comprises a guide rod passing through the connecting hole of the connecting end of the drive carrier parallel to the adjustment direction, so that the drive carrier is movable along the guide means under the drive of the drive element.
The drive assembly for a lens of claim 200, wherein the connection ends of the drive carrier comprise a first connection end extending outwardly from a carrier body of the drive carrier and a second connection end extending outwardly from a carrier body of the drive carrier, wherein the first connection end and the second connection end are located on opposite sides of the carrier body from each other, respectively, and

The guide device comprises a first guide rod and a second guide rod, wherein the first guide rod passes through a first connecting hole of a first connecting end of the drive carrier, and the second guide rod passes through a second connecting hole of a second connecting end of the drive carrier, so that the drive carrier can move along the first guide rod and the second guide rod of the guide device under the drive of the drive element, and the first guide rod and the second guide rod are parallel to each other and are arranged along the adjustment direction.
A camera module comprises

The drive assembly for driving a lens of any one of claims 179 to 201;

the photosensitive assembly is used for receiving the optical signal and converting the received optical signal into an image signal;

The lens group comprises a fixed group and an adjustable group, wherein a driving element of the driving assembly is used for driving the adjustable group of the lens group.
The camera module of claim 202, wherein the adjustable group of lens groups includes a zoom group and a focus group, wherein the drive carrier of the drive assembly includes a first carrier for carrying the zoom group and a second carrier for carrying the focus group, wherein the first and second carriers are coaxially arranged in sequence along the adjustment direction and are individually drivable.
An assembling method of a driving assembly for driving a lens, comprising the steps of:

s1, embedding a pre-compression device into a bearing mechanism so as to fixedly connect the pre-compression device with the bearing mechanism;

s2, electrically connecting the two driving elements to a driving substrate;

s3, placing the driving substrate between an upper clamping part and a lower clamping part of the pre-compression device;

S4, placing a friction plate between the two driving elements, enabling the friction plate to be fixedly connected with a driving carrier, and clamping the two driving elements through the pre-compression device to enable the two driving elements to be respectively in friction contact with the friction plate;

s5, fixedly connecting the bearing mechanism with the driving shell.
The assembly method for driving a driving assembly of a lens of claim 204, wherein in step S2, the piezoelectric plates of the two driving elements are electrically connected to the first and second conductive ends of the driving substrate, respectively, and the friction driving parts of the two driving elements are disposed opposite to each other.
The assembly method of claim 205, wherein in step S3, the upper and lower clamps of the pre-compression device are caused to clamp the first and second conductive ends of the drive substrate, respectively, the drive substrate and the drive element are clamped in the pre-compression device by the upper and lower clamps of the pre-compression device, and the drive element is further disposed on the carrier mechanism.
The method of assembling a driving assembly for driving a lens according to claim 206, wherein in step S4, the first conductive end and the second conductive end of the driving substrate are fixed on positioning posts of the carrying mechanism, respectively.
The assembly method for driving a lens of claim 207, wherein in step S5, the bearing connection portion of the bearing structure is disposed in the connection groove of the lower housing of the driving housing to be fixed, and then the upper housing of the driving housing is fixed to the lower housing to complete the assembly of the driving assembly.
A drive assembly for driving a lens, comprising:

a drive carrier having a carrier body for carrying an adjustable group of lenses;

A driving element for providing a driving force for moving the driving carrier in an adjustment direction;

The friction plate is arranged between the driving element and the carrier main body of the driving carrier, one end of the friction plate is fixedly connected with the carrier main body of the driving carrier, and the other end of the friction plate is in functional connection with the driving element, so that the driving element can drive the friction plate to move along the adjustment direction;

wherein the driving element comprises an upper driving element and a lower driving element which are arranged at two sides of the friction plate and clamp the friction plate in the middle, so that the friction plate can move along the adjustment direction under the cooperative driving action of the upper driving element and the lower driving element,

Wherein the overall height of the upper drive element, lower drive element, and friction plate sandwiched between the upper drive element and lower drive element is no greater than the maximum height of the carrier body of the drive carrier.
A drive assembly for driving a lens according to claim 209, wherein a pre-compression means is provided to provide pre-compression to the upper and lower drive elements such that the upper and lower drive elements are held in frictional contact with the friction plate under the influence of the pre-compression.
The drive assembly for driving a lens of claim 210, wherein the pre-compression device comprises an upper nip, a lower nip, and a connection connecting the upper and lower nips, wherein the pre-compression device elastically clamps the friction plate and upper and lower drive elements disposed on both sides of the friction plate between the upper and lower nips of the pre-compression device.
The drive assembly for driving a lens of claim 211, further comprising a drive substrate electrically coupled to the upper and lower drive elements for delivering electrical current to the upper and lower drive elements, wherein the drive substrate is clamped to the upper and lower drive elements by the pre-compression device.
The drive assembly for driving a lens of claim 212, wherein the drive substrate comprises a first conductive end, a second conductive end, and a connecting strap connecting the first conductive end and the second conductive end, wherein the first conductive end is clamped to the upper drive element by an upper clamp of the pre-compression device and the second conductive end is clamped to the lower drive element by a lower clamp of the pre-compression device.
The drive assembly for driving a lens of claim 213, wherein the second conductive end of the drive substrate is provided with an extension, wherein a position sensing element is provided on the extension and a sensing magnet is provided on the friction plate opposite the position of the position sensing element.
The drive assembly for driving a lens according to claim 209, wherein the upper and lower driving elements are configured as piezoelectric actuators respectively comprising a piezoelectric plate and friction driving portions fixed on the piezoelectric plate, wherein the friction driving portions of the upper and lower driving elements are operatively connected with the friction plate at both sides respectively so as to be capable of cooperatively driving the friction plate to move in the adjustment direction.
The drive assembly for a lens of claim 213, wherein the drive assembly further comprises a carrier mechanism having a plurality of positioning posts forming a seating space in which the upper and lower drive elements are disposed under the grip of the pre-compression device, wherein the drive substrate is fixed on the positioning posts of the carrier mechanism.
The drive assembly for a lens of claim 216, wherein the carrier further has a carrier connection fixedly coupled to the drive housing, wherein the drive housing comprises an upper housing and a lower housing coupled to the upper housing in a closed configuration.
The drive assembly for a lens according to claim 217, wherein a connecting groove is provided on a side wall of the lower housing of the drive housing, and the bearing connecting portion of the bearing mechanism is embedded in the connecting groove to be fixed.
The drive assembly for a lens according to claim 218, wherein the lower housing sidewall of the drive housing is further provided with an overlapping groove, the overlapping groove comprising an inner overlapping groove and an outer overlapping groove, the inner overlapping groove having a height greater than a height of the outer overlapping groove.
A drive assembly for a lens according to claim 216, wherein the drive assembly further comprises guide means arranged in sliding connection with the drive carrier such that the drive carrier is movable along the guide means under co-operation of the upper and lower drive elements.
A drive assembly for a lens according to claim 220, wherein the guide means comprises a guide rod extending through the connection aperture of the connection end of the drive carrier parallel to the adjustment direction, whereby the drive carrier is movable along the guide means under co-operation of the upper and lower drive elements.
The drive assembly for a lens according to claim 221, wherein the connection ends of the drive carrier include a first connection end extending outwardly from a carrier body of the drive carrier and a second connection end extending outwardly from a carrier body of the drive carrier, wherein the first connection end and the second connection end are located on opposite sides of the carrier body from each other, respectively, and

The guide device comprises a first guide rod and a second guide rod, wherein the first guide rod passes through a first connecting hole of a first connecting end of the driving carrier, and the second guide rod passes through a second connecting hole of a second connecting end of the driving carrier, so that the driving carrier can move along the first guide rod and the second guide rod of the guide device under the cooperative driving of the upper driving element and the lower driving element, and the first guide rod and the second guide rod are parallel to each other and are arranged along the adjusting direction.
The drive assembly for driving a lens of claim 222, wherein the first and second guide bars of the guide device have a height difference.
A camera module comprises

A drive assembly for driving a lens as claimed in any one of claims 209 to 223;

the photosensitive assembly is used for receiving the optical signal and converting the received optical signal into an image signal;

the lens group comprises a fixed group and an adjustable group, wherein the adjustable group used for cooperatively driving the lens group is arranged under the cooperative driving of the upper driving element and the lower driving element of the driving assembly.
The camera module of claim 224, wherein the adjustable group of lens groups includes a zoom group and a focus group, wherein the drive carrier of the drive assembly includes a first carrier for carrying the zoom group and a second carrier for carrying the focus group, wherein the first and second carriers are coaxially arranged in sequence along the adjustment direction and are individually drivable.
The camera module of claim 225, wherein the drive assembly further comprises:

a first driving member for providing a driving force for moving the first carrier in the adjustment direction;

A first friction plate arranged between the carrier body of the first carrier and the first driving element, wherein one end of the first friction plate is fixedly connected with the carrier body of the first carrier, and the other end of the first friction plate is in functional connection with the first driving element, so that the first driving element can drive the first friction plate to move along the adjustment direction,

The first driving element comprises a first upper driving element and a first lower driving element, and the first upper driving element and the first lower driving element are arranged on two sides of the first friction plate and clamp the first friction plate in the middle, so that the first friction plate can move along the adjustment direction under the cooperative driving action of the first upper driving element and the first lower driving element;

a second driving member for providing a driving force for moving the second carrier in the adjustment direction;

A second friction plate arranged between the carrier body of the second carrier and the second driving element, wherein one end of the second friction plate is fixedly connected with the carrier body of the second carrier, and the other end of the second friction plate is in functional connection with the second driving element, so that the second driving element can drive the second friction plate to move along the adjustment direction,

The second driving element comprises a second upper driving element and a second lower driving element which are arranged on two sides of the second friction plate and clamp the second friction plate in the middle, so that the second friction plate can move along the adjustment direction under the cooperative driving action of the second upper driving element and the second lower driving element.
The camera module of claim 226, wherein the first upper and lower drive elements disposed on both sides of and sandwiching the first friction plate are located on a first side of the drive assembly and the second upper and lower drive elements disposed on both sides of and sandwiching the second friction plate are located on a second side of the drive assembly, wherein the first and second sides are opposite each other relative to the axis of the first and second carriers.
The camera module of claim 227, wherein the overall height of the first upper and lower drive elements and the first friction plate sandwiched between the first upper and lower drive elements is no greater than the maximum height of the lens group, and the overall height of the second upper and lower drive elements and the second friction plate sandwiched between the second upper and lower drive elements is no greater than the maximum height of the lens group.
A drive assembly for driving a lens, comprising:

A driving carrier including a first carrier and a second carrier for carrying at least one adjustable group of lenses, respectively, wherein the first carrier and the second carrier are sequentially arranged on the same axis along an adjustment direction and are capable of moving along the adjustment direction independently of each other;

a first driving element;

The first friction plate is arranged between the carrier main body of the first carrier and the first driving element, one end of the first friction plate is fixedly connected with the carrier main body of the first carrier, and the other end of the first friction plate is in functional connection with the first driving element;

A second driving element;

The second friction plate is arranged between the carrier main body of the second carrier and the second driving element, one end of the second friction plate is fixedly connected with the carrier main body of the second carrier, and the other end of the second friction plate is in functional connection with the second driving element;

wherein the first drive element and the second drive element are centrosymmetric as seen along said axis.
The drive assembly for driving a lens according to claim 229, wherein the first and second drive elements are configured as structurally identical standard.
The drive assembly for driving a lens of claim 229, wherein the drive assembly further comprises a first pre-compression device configured to provide a pre-compression force to the first drive element such that the first drive element is maintained in frictional contact with the first friction plate under the pre-compression force, and

The drive assembly further comprises a second pre-compression device arranged to provide a pre-compression to the second drive element such that the second drive element is held in frictional contact with the second friction plate under said pre-compression force.
The drive assembly for driving a lens of claim 231, wherein a first friction mechanism is disposed between the first pre-compression device and the first friction plate such that the first friction plate is movably coupled to the first pre-compression device by the first friction mechanism, and

And a second friction mechanism is arranged between the second pre-compression device and the second friction plate, so that the second friction plate is movably connected with the second pre-compression device through the second friction mechanism.
The drive assembly for driving a lens of claim 232, wherein the first driving member is provided on one side of the first friction plate, the first friction mechanism is provided on the opposite side of the first friction plate such that the first friction plate is sandwiched between the first driving member and the first friction mechanism, and the first friction plate is movable in the adjustment direction by the driving of the first driving member, and

A second driving member is provided on one side of the second friction plate, a second friction mechanism is provided on the opposite side of the second friction plate such that the second friction plate is sandwiched between the second driving member and the second friction mechanism, and the second friction plate is movable in the adjustment direction by the driving of the second driving member,

Wherein the first friction mechanism and the second friction mechanism are centrosymmetric as viewed along said axis.
The drive assembly for driving a lens according to claim 233, wherein the first and second friction mechanisms are configured as structurally identical standard pieces.
The drive assembly for driving a lens according to claim 234, wherein the first structural unit formed by the first drive element and the first friction mechanism and the second structural unit formed by the second drive element and the second friction mechanism are configured as identical structural standard pieces and are centrosymmetric as viewed along the axis.
A drive assembly for a lens according to any one of claims 232 to 235, wherein the first friction mechanism comprises a groove or roller way configured on the first pre-compression means and/or the first friction plate and a ball or slider arranged in the groove or roller way, and

The second friction means comprise grooves or roller tracks formed on the second pre-stressing means and/or the second friction plate, and balls or slides arranged in the grooves or roller tracks.
The drive assembly for driving a lens according to any one of claims 233 to 235, wherein the first and second pre-compression devices include an upper nip portion, a lower nip portion, and a connection portion connecting the upper and lower nip portions, respectively,

Wherein the first pre-compression device elastically clamps the first friction plate and the first driving element and the first friction mechanism arranged at both sides of the first friction plate between an upper clamping part and a lower clamping part of the first pre-compression device, and

The second pre-pressing device elastically clamps the second friction plate between the upper clamping part and the lower clamping part of the second pre-pressing device, and the second driving element and the second friction mechanism are arranged at both sides of the second friction plate.
The drive assembly for driving a lens of claim 231, wherein one first driving member is provided on each of two opposite sides of the first friction plate such that the first friction plate is sandwiched between the two first driving members and movable in the adjustment direction by cooperative driving of the two first driving members, and

A second driving element is arranged on two opposite sides of the second friction plate respectively, so that the second friction plate is clamped between the two second driving elements and can move along the adjustment direction under the cooperative driving action of the two second driving elements,

Wherein the two first driving elements and the two second driving elements are centrosymmetric as seen along said axis.
The drive assembly for driving a lens of claim 238, wherein the first and second pre-compression devices comprise an upper nip, a lower nip, and a connection connecting the upper and lower nips, respectively,

Wherein the first pre-compression device elastically clamps the first friction plate and the first driving element arranged at both sides of the first friction plate between the upper clamping part and the lower clamping part of the first pre-compression device, and

The second pre-compression device elastically clamps the second friction plate and the second driving element disposed at both sides of the second friction plate between the upper and lower clamping portions of the second pre-compression device.
The drive assembly for driving a lens barrel of any one of claims 229-235, wherein the first and second drive elements are configured as piezoelectric actuators each comprising a piezoelectric plate and a friction drive portion secured to the piezoelectric plate, wherein the friction drive portion of the first drive element is operatively coupled to the first friction plate so as to be capable of driving the first friction plate to move in the adjustment direction, and the friction drive portion of the second drive element is operatively coupled to the second friction plate so as to be capable of driving the second friction plate to move in the adjustment direction.
A drive assembly for a lens according to any one of claims 229 to 235, wherein the drive assembly further comprises guide means for guiding movement of the first and second carriers in the adjustment direction, wherein the guide means comprises at least one guide rod passing through the first and second carriers parallel to the adjustment direction, such that the first and second carriers are movable along the guide means.
The drive assembly for driving a lens of claim 241, wherein the first carrier comprises a first connection end extending outward from a carrier body of the first carrier and a second connection end extending outward from a carrier body of the first carrier, wherein the first connection end and the second connection end are respectively located on opposite sides of the carrier body of the first carrier, wherein the first connection end of the first carrier has a first connection hole, the second connection end of the first carrier has a second connection hole, and

The second carrier further comprises a first connection end extending outwards from the carrier body of the second carrier and a second connection end extending outwards from the carrier body of the second carrier, wherein the first connection end and the second connection end are respectively positioned at two sides of the carrier body of the second carrier, which are opposite to each other, wherein the first connection end of the second carrier is provided with a first connection hole, the second connection end of the second carrier is provided with a second connection hole,

Wherein the guiding means comprises a first guiding rod and a second guiding rod, wherein the first guiding rod passes through the second connecting hole of the second connecting end of the first carrier and the first connecting hole of the first connecting end of the second carrier, and the second guiding rod passes through the first connecting hole of the first connecting end of the first carrier and the second connecting hole of the second connecting end of the second carrier, so that the first carrier and the second carrier can be individually moved along the first guiding rod and the second guiding rod of the guiding means under the driving of the first driving element and the second driving element, respectively, wherein the first guiding rod and the second guiding rod are arranged parallel to each other along the adjustment direction.
The drive assembly for driving a lens according to claim 242, wherein the first guide bar and the second guide bar of the guiding means have a height difference.
The drive assembly for driving a lens of claim 242, wherein the second connection end of the first carrier has a seating groove, the first friction plate is inserted into the seating groove of the second connection end and fixedly coupled with the carrier body of the first carrier, and the second connection end of the second carrier has a seating groove, the second friction plate is inserted into the seating groove of the second connection end and fixedly coupled with the carrier body of the second carrier.
The drive assembly for a lens of claim 238, wherein a first drive substrate is disposed between the first pre-compression device and the first drive element, the first drive substrate being electrically coupled to the first drive element for delivering current to the first drive element, wherein the first drive substrate is clamped to the first drive element by the first pre-compression device, and

A second driving substrate is arranged between the second pre-compression device and the second driving element, the second driving substrate is electrically connected with the second driving element and is used for conveying current to the second driving element, wherein the second driving substrate is clamped on the second driving element through the second pre-compression device,

Wherein the first and second drive substrates are centrosymmetric as viewed along said axis.
The drive assembly for a lens of claim 245, wherein the first drive substrate comprises a first conductive end, a second conductive end, and a connecting strap connecting the first conductive end and the second conductive end, wherein the first conductive end of the first drive substrate is clamped to the corresponding drive element by an upper clamp of the first pre-compression device, the second conductive end of the first drive substrate is clamped to the corresponding drive element by a lower clamp of the first pre-compression device, and

The second driving substrate comprises a third conductive end, a fourth conductive end and a connecting belt connected with the third conductive end and the fourth conductive end, wherein the third conductive end of the second driving substrate is clamped on a corresponding driving element through a lower clamping part of the second pre-compression device, and the fourth conductive end of the second driving substrate is clamped on the corresponding driving element through an upper clamping part of the second pre-compression device.
The drive assembly for a lens according to any one of claims 229-235, wherein the drive assembly further comprises a first carrier and a second carrier each having a plurality of positioning posts forming a placement space, wherein the first drive element is disposed in the placement space of the first carrier under the clamping of the first pre-compression device, and the first and second conductive ends of the first drive substrate are secured to the positioning posts of the first carrier outside the placement space of the first carrier, respectively, and

The second driving element is arranged in the arrangement space of the second bearing mechanism under the clamping of the second pre-pressing device, and the third conductive end and the fourth conductive end of the second driving substrate are respectively fixed on the positioning column of the second bearing mechanism outside the arrangement space of the second bearing mechanism.
The drive assembly for a lens according to claim 247, wherein the first and second carrier mechanisms further have carrier connection portions, respectively, fixedly connected with a drive housing, wherein the drive housing comprises an upper housing and a lower housing connected with the upper housing in a closed configuration.
A camera module comprises

A drive assembly for driving a lens as claimed in any one of claims 229 to 248;

the photosensitive assembly is used for receiving the optical signal and converting the received optical signal into an image signal;

The lens group comprises a fixed group and an adjustable group, wherein a driving element of the driving assembly is used for driving the adjustable group of the lens group.
The camera module of claim 249, wherein the adjustable group of lens groups includes a zoom group and a focus group, wherein a first carrier of the drive assembly is configured to carry a first carrier of the zoom group and a second carrier of the drive assembly is configured to carry the focus group, wherein the first and second carriers are independently drivable by first and second drive elements, respectively.