CN117539106A

CN117539106A - Driving device and camera module

Info

Publication number: CN117539106A
Application number: CN202210898331.6A
Authority: CN
Inventors: 请求不公布姓名; 魏青云; 赵波杰; 姚立锋
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2024-02-09

Abstract

The application discloses drive arrangement and module of making a video recording, wherein, drive arrangement includes: a base; an anti-shake frame movably connected to the base; a focusing carrier movably connected to the anti-shake frame; a magnet part arranged on the anti-shake frame, the magnet part comprising a first magnet, a second magnet and a third magnet, the second magnet and the third magnet being arranged on two sides of the first magnet oppositely; an anti-shake coil part disposed on the base and opposite to the magnet part; the focusing coil part is arranged on the focusing carrier and is opposite to the magnet part, wherein the focusing coil part is provided with a straight edge section which is mutually parallel to the length direction of the first magnet, and a bevel edge section which is connected with the straight edge section and forms a certain included angle with the length direction of the first magnet.

Description

Driving device and camera module

Technical Field

The application relates to the technical field of camera modules, in particular to a driving device and a camera module using the driving device.

Background

With the popularity of mobile electronic devices, related technologies of camera modules applied to mobile electronic devices for helping users acquire images have been rapidly developed and advanced. Currently, in the market, consumers have increasingly high and diversified functions, such as a focusing function and an anti-shake function, of a camera module configured in a mobile electronic device (e.g., a smart phone).

In order to realize the anti-shake function of the camera module, a suspension spring wire is often used to suspend and translate the movable part, but the suspension spring wire has the problems of complicated assembly process, easy breakage and the like, thereby causing the problems of motor inactivity, poor compensation effect and the like.

Therefore, an excellent driving device and camera module are desired to meet the demands of consumers for focusing and/or anti-shake functions.

Disclosure of Invention

An object of the present application is to provide a driving device and an image capturing module, which overcome the defects of the prior art, and have an excellent focusing function and/or an anti-shake function.

According to a first aspect of the present application, there is provided a driving device comprising:

a base;

an anti-shake frame movably connected to the base;

a focus carrier movably connected to the anti-shake frame;

a magnet portion provided to the anti-shake frame, the magnet portion including a first magnet, a second magnet, and a third magnet, the second magnet being provided on both sides of the first magnet opposite to the third magnet;

an anti-shake coil portion provided to the base and opposite to the magnet portion;

The focusing coil part is arranged on the focusing carrier and opposite to the magnet part, wherein the focusing coil part is provided with a straight edge section parallel to the length direction of the first magnet and a bevel edge section connected with the straight edge section and forming a certain included angle with the length direction of the first magnet.

In some embodiments, the driving device includes a first side, a second side, a third side, and a fourth side that are sequentially disposed around a circumferential side thereof, the first magnet is disposed at the first side, the second magnet is disposed at the second side, the third magnet is disposed at the fourth side, and the third side is not provided with a magnet.

In some embodiments, the focusing coil includes a first focusing coil portion located on the first side, a second focusing coil portion located on the second side, a third focusing coil portion located on the third side, and a fourth focusing coil portion located on the fourth side, the first focusing coil portion being within a magnetic field of the first magnet, the second focusing coil portion being within a magnetic field of the second magnet, the fourth focusing coil portion being within a magnetic field of the third magnet.

In some embodiments, the first focusing coil part includes one straight edge section and at least two oblique edge sections connected to the straight edge section, and a distance from the straight edge section to the first magnet is smaller than a distance from the two oblique edge sections to the first magnet.

In some embodiments, the length of the straight edge section is less than the length of the hypotenuse section to reduce the effective reaction between the first magnet and the first focusing coil portion.

In some embodiments, the focusing coil is a symmetrical structure, the second focusing coil portion is symmetrically disposed with the fourth focusing coil portion, and the first focusing coil portion is symmetrically disposed with the third focusing coil portion.

In some embodiments, the anti-shake coil portion includes a first anti-shake coil fixed to the base and opposite the first magnet, a second anti-shake coil fixed to the base and opposite the second magnet, and a third anti-shake coil fixed to the base and opposite the third magnet.

In some embodiments, the driving device includes a magnetic conductive member, the magnetic conductive member includes a first magnetic conductive member, a second magnetic conductive member, and a third magnetic conductive member, the first magnetic conductive member is disposed on a side of the first magnet away from the first anti-shake coil, the second magnetic conductive member is disposed on a side of the second magnet away from the second focusing coil, and the third magnetic conductive member is disposed on a side of the third magnet away from the fourth focusing coil.

In some embodiments, the driving device includes a suspension portion including a first suspension portion and a side suspension portion, the first suspension portion connecting between the focus carrier and the anti-shake frame, the focus carrier being suspended within the anti-shake frame by the first suspension portion; the side suspension part is connected between the anti-shake frame and the base, and the anti-shake frame is suspended in the base by the side suspension part.

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

a photosensitive assembly;

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

and the driving device is suitable for driving the optical lens to move.

Compared with the prior art, the application has at least one of the following technical effects:

1. the generation of asymmetric force is avoided, and further, the dynamic gesture difference such as inclination or rotation and the like generated by the focusing carrier under the action of the asymmetric force is avoided;

2. by reducing the length of the straight section of the first focusing coil portion, the effective reaction between the first magnet and the focusing coil is reduced.

Additional embodiments and features are set forth in part in the description which follows and in part will become apparent to those skilled in the art upon examination of the specification or may be learned by practice of the disclosed subject matter. A further understanding of the nature and advantages of the present disclosure may be realized by reference to the remaining portions of the specification and the drawings which form a part of this application.

Drawings

FIG. 1 is a schematic cross-sectional view of an imaging module according to an embodiment of the present application;

fig. 2 is a perspective exploded schematic view of a driving device according to an embodiment of the present application;

fig. 3 is a schematic perspective exploded view of a focusing part of a driving device according to an embodiment of the present application;

FIG. 4 is a schematic view of the drive mechanism with the housing removed in accordance with an embodiment of the present application;

fig. 5 is a schematic view of a magnet portion, a focusing coil portion, and an anti-shake coil portion of a driving device according to an embodiment of the present application;

fig. 6 is a plan view of a magnet portion and a focusing coil portion of a driving device according to an embodiment of the present application;

fig. 7 is a schematic structural view of a suspension portion of a driving device according to an embodiment of the present application;

fig. 8A is a top view of a suspension portion and a magnet portion of a driving device according to an embodiment of the present application;

FIG. 8B is an enlarged schematic view of the circular area A of FIG. 8A;

FIG. 9 is a schematic structural view of a lower suspension assembly of a drive device according to an embodiment of the present application;

fig. 10 is a bottom view of a suspension portion, a focus carrier, an anti-shake frame, a magnet portion of a driving device according to an embodiment of the present application;

fig. 11 is a schematic structural view of a suspension, a focus carrier, an anti-shake frame, a base, and an anti-shake circuit board of a driving device according to an embodiment of the disclosure.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

It is noted that, as used in this application, the terms "substantially," "about," and the like are used as terms of a table approximation, not as terms of a table level, and are intended to illustrate inherent deviations in measured or calculated values that would be recognized by one of ordinary skill in the art.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or both elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Various units, circuits, or other components may be described or described as "configured to" perform a task or tasks. In such contexts, "configured to" implies that the structure (e.g., circuitry) is used by indicating that the unit/circuit/component includes the structure (e.g., circuitry) that performs the task or tasks during operation. Further, "configured to" may include a general-purpose structure (e.g., a general-purpose circuit) that is manipulated by software and/or firmware to operate in a manner that is capable of performing one or more tasks to be solved. "configured to" may also include adjusting a manufacturing process (e.g., a semiconductor fabrication facility) to manufacture a device (e.g., an integrated circuit) suitable for performing or executing one or more tasks.

The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification and the appended claims, the singular forms "a," "an," and "the" are intended to cover the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

As used herein, the term "if" may be interpreted to mean "when..or" at..times "or" in response to a determination "or" in response to detection "depending on the context. Similarly, the phrase "if a condition or event is identified" or "if a condition or event is detected" may be interpreted to mean "upon identification of the condition or event," or "upon detection of the condition or event, depending on the context.

Exemplary camera Module

Fig. 1 to 11 illustrate a driving device 20 and an image capturing module 1 of the present application, as shown in fig. 1, the image capturing module 1 according to the embodiment of the present application is illustrated, and includes a photosensitive assembly 30, an optical lens 10 held on a photosensitive path of the photosensitive assembly 30, and a driving device 20 for driving the optical lens 10 to move to achieve optical performance adjustment, for example, for achieving functions of anti-shake, focusing, and the like.

Accordingly, the optical lens 10 includes a barrel and a plurality of optical lenses mounted on the barrel, the optical lens 10 has an optical axis, the optical axis of the optical lens 10 is also the optical axes of the plurality of optical lenses, and the photosensitive assembly 30 is disposed opposite to the optical lens 10 along the optical axis direction. For convenience of description, a side of the image capturing module 1 facing the object is taken as an object side, a side of the image capturing module 1 facing the photosensitive assembly 30 is taken as an image side, the optical axis direction includes a direction along the optical axis pointing to the image side (abbreviated as image side in the present application), and a direction along the optical axis pointing to the object side (abbreviated as object side in the present application), the horizontal direction is a direction perpendicular to the optical axis direction, and the height direction is a direction along the optical axis direction.

With continued reference to fig. 1, the optical lens 10 is fixed in the driving device 20, the photosensitive assembly 30 is fixed on the image side of the driving device 20, and further the optical lens 10 can be held on the photosensitive path of the photosensitive assembly 30 by the driving device 20, and the optical lens 10 is suitable for being driven by the driving device 20 to realize functions of anti-shake, focusing, and the like.

The photosensitive assembly 30 includes a chip circuit board 32, a photosensitive chip 31 electrically connected to the chip circuit board 32, and a plurality of electronic components 33, wherein the photosensitive chip 31 is used for receiving the external light collected by the optical lens 10 for imaging and electrically connected to external mobile electronic devices through the chip circuit board 32. In one embodiment of the present application, the plurality of electronic components 33 may be one or more of passive electronic devices such as resistors, capacitors, and active electronic devices such as driver chips, memory chips, and the like.

The photosensitive assembly 30 further includes a filter assembly 34, where the filter assembly 34 includes a filter element 341, the filter element 341 is held on the photosensitive path of the photosensitive chip 31, and the filter element 341 is disposed between the optical lens 10 and the photosensitive chip 31, and is used for filtering incident light entering the photosensitive chip 31, and filtering stray light, such as infrared light, of the incident light, which is not required for imaging.

The filter assembly 34 further includes a filter support 342, the filter 341 is mounted and fixed on the filter support 342 and corresponds to at least the photosensitive area of the photosensitive chip 31, the filter support 342 has a light-passing hole, and the incident light passing through the optical lens 10 is incident on the photosensitive chip 31 through the light-passing hole, and the filter 341 can be attached to the filter support 342 in a positive or negative manner.

Further, the filter element holder 342 is fixed to the chip circuit board 32, and in one embodiment of the present application, the photosensitive assembly 30 is fixed to the image side of the driving device 20 through the filter element holder 342, and in another embodiment of the present application, the photosensitive assembly 30 may also be fixed to the image side of the driving device 20 through the chip circuit board 32.

The filter element holder 342 may be fixed to the chip circuit board 32 by, for example, bonding with an adhesive medium after being prefabricated and molded, or may be integrally molded with the chip circuit board 32 by, for example, molding, and directly fixed to the chip circuit board 32 by integral molding.

Exemplary drive apparatus

As shown in fig. 2 to 11, the driving device 20 of the present application can drive the optical lens 10 to move along the Z-axis direction, so as to adjust the distance between the optical lens 10 and the photosensitive assembly 30, and realize a focusing function; the driving device 20 can drive the optical lens 10 to move in the X-axis direction and/or the Y-axis direction, so as to translate the optical lens 10 relative to the photosensitive assembly 30, thereby realizing the anti-shake function. In this embodiment of the present application, the X-axis direction and the Y-axis direction are perpendicular to each other, the Z-axis direction is perpendicular to the plane in which the X-axis direction and the Y-axis direction are located, in other words, the X-axis, the Y-axis, and the Z-axis form a three-dimensional coordinate system, the XOY plane in which the X-axis direction and the Y-axis direction are located is also referred to as the plane in which the horizontal direction is located, and the Z-axis approaches to the optical axis direction or the direction parallel to the optical axis. In this application, due to the problem of assembly tolerance, the vertical includes two cases where the included angle between two objects is 90 ° and is close to 90 °, and the parallel includes two cases where the included angle between two objects is 0 ° and is close to 0 °. I.e. approximately perpendicular may also be regarded as perpendicular, and approximately parallel may also be regarded as parallel. In one embodiment of the present application, the driving device 20 includes a fixing portion 21, a focusing carrier 22, an anti-shake frame 23, a suspension portion 24, a magnet portion 25, a focusing coil portion 26, and an anti-shake coil portion 27. The focusing carrier 22, the anti-shake frame 23, the suspension 24, the magnet 25, the focusing coil 26, and the anti-shake coil 27 are accommodated in the fixing portion 21, the magnet 25 is provided on the anti-shake frame 23, the focusing coil 26 is provided on the focusing carrier 22 and faces the magnet 25, and the anti-shake coil 27 is provided on the fixing portion 21 and faces the magnet 25. Wherein the driving device 20 comprises a focusing part and an anti-shake part, and the focusing part is used for realizing the focusing function of the driving device 20; the anti-shake portion is for realizing an anti-shake function of the driving apparatus 20.

Specifically, in one embodiment of the present application, the fixing portion 21 includes a housing 211 and a base 212, where the housing 211 and the base 212 are fastened to each other to form a receiving cavity of the fixing portion 21 to receive the focusing carrier 22, the anti-shake frame 23, the suspension portion 24, the magnet portion 25, the focusing coil portion 26, and the anti-shake coil portion 27, so that dust can be prevented from entering, and falling of the components when the components are impacted can be prevented.

Further, in one embodiment of the present application, the base 212 includes a base body 2121 and an anti-shake coil mounting position 2122 provided to the base body 2121, wherein the anti-shake coil mounting position 2122 is provided to a top surface of the base body 2121 and the anti-shake coil portion 27 is provided within the anti-shake coil mounting position 2122. The base 212 further includes a base boss 2123, the base boss 2123 being integrally provided on the base body 2121 and extending toward the object side, the base boss 2123 being provided at a position near a corner of the base body 2121.

The housing 211 and the base 212 of the fixing portion 21 are both stators, and when the driving device 20 drives the optical lens 10 to move, the fixing portion 21 remains relatively fixed, and other components move relative to the fixing portion 21. In one embodiment of the present application, the photosensitive element 30 is fixed to the base 212 of the fixing portion 21, and thus the photosensitive element 30 is also a relatively fixed portion. The housing 211 and the base 212 have a light-passing hole, respectively, so that the imaging light can be incident on the optical lens 10 fixed on the driving device 20 and can exit the optical lens 10 to be incident on the photosensitive assembly 30.

As shown in fig. 2 to 4, in one embodiment of the present application, the anti-shake frame 23 is movably connected to the base 212 of the fixing portion 21, the focusing carrier 22 is movably connected to the anti-shake frame 23, and the optical lens 10 is fixed to the focusing carrier 22, so that the optical lens 10 moves along with the focusing carrier 22 when the focusing carrier 22 is driven by the driving device 20.

In one embodiment of the present application, the focusing carrier 22 includes a carrier body 221, where the optical lens 10 is fixed to the carrier body 221, the carrier body 221 has a through hole adapted to accommodate the optical lens 10, the optical lens 10 is fixed in the through hole of the focusing carrier 22, specifically, the optical lens 10 may be fixed to the focusing carrier 22 by, for example, bonding or welding with an adhesive medium, or may be fixed to the focusing carrier 22 by integrally molding the lens barrel of the optical lens 10 and the focusing carrier 22, which is not limited in this application.

The focusing carrier 22 is movably disposed on the inner side of the anti-shake frame 23, the anti-shake frame 23 is movably disposed between the focusing carrier 22 and the fixing portion 21, in one embodiment of the present application, the anti-shake frame 23 is movably disposed above the base 212, the anti-shake frame 23 includes a frame body 231, the frame body 231 has a receiving cavity 2310, and the focusing carrier 22 is received in the receiving cavity 2310 of the anti-shake frame 23.

It is understood that in the embodiment of the present application, the focusing carrier 22 may be driven to move separately relative to the anti-shake frame 23, or may be driven by the anti-shake frame 23 to move together with the anti-shake frame 23. Further, the focusing carrier 22 and/or the anti-shake frame 23 are driven to move to drive the optical lens 10 to move, so as to realize focusing and/or anti-shake functions.

Specifically, when the anti-shake frame 23 is kept stationary and the focusing carrier 22 is driven to move relative to the anti-shake frame 23, the focusing carrier 22 can drive the optical lens 10 to move along the optical axis direction so as to realize a focusing function; when the anti-shake frame 23 is driven to move relative to the base 212, the anti-shake frame 23 can drive the focusing carrier 22 and the optical lens 10 to move in a plane perpendicular to the optical axis, so as to realize an anti-shake function.

Referring to fig. 2 and 3, in one embodiment of the present application, the magnet portion 25, the focusing coil portion 26, and the anti-shake coil portion 27 form a driving assembly of the driving device 20, which is capable of driving the focusing carrier 22 and the anti-shake frame 23 to move.

The magnet portion 25 is provided on the anti-shake frame 23, the focus coil portion 26 is provided on the focus carrier 22 so as to face the magnet portion 25, and the anti-shake coil portion 27 is provided on the base 212 of the fixing portion 21 so as to face the magnet portion 25. In a specific example of the present application, the magnet portion 25 is fixed to the anti-shake frame 23, the focus coil portion 26 is fixed to a side surface of the focus carrier 22, and the anti-shake coil portion 27 is fixed to a top surface of the base 212. That is, the focusing coil portion 26 and the magnet portion 25 are disposed to face each other in the horizontal direction, and the anti-shake coil portion 27 and the magnet portion 25 are disposed to face each other in the height direction.

In one embodiment of the present application, the focusing carrier 22 further includes a focusing coil positioning portion 223 disposed on a sidewall of the carrier body 221, and the focusing coil portion 26 is disposed on the focusing coil positioning portion 223. Of course, the focusing coil portion 26 may be directly wound on the side wall of the focusing carrier 22, or may be prefabricated and then mounted on the side wall of the focusing carrier 22, which is not limited in this application.

It will be appreciated that in this application, focusing coil portion 26 may be a hollow toroidal coil, i.e., focusing coil portion 26 is a single coil, circumferentially disposed on the side wall of focusing carrier 22; the focusing coil portion 26 may be an air-core planar coil, that is, at least one of the focusing coil portions 26 may be provided on the side wall of the focusing carrier 22 in a planar manner.

In a specific example of the present application, the focusing coil placement position 223 is formed by a groove recessed inward from the side wall of the carrier body 221, so that the focusing coil part 26 does not protrude from the side wall of the carrier body 221 when being disposed at the focusing coil placement position 223, avoiding an increase in the lateral dimension of the driving device 20.

Wherein, in one embodiment of the present application, the anti-shake frame 23 further includes a magnet seating groove 232, and the magnet portion 25 is disposed in the magnet seating groove 232. Wherein the magnet seating groove 232 has an opening in a horizontal direction toward the focusing carrier 22 and an opening in a height direction toward the base 212 such that side surfaces and bottom surfaces of the magnet portion 25 disposed in the magnet seating groove 232 are exposed.

Further, the side of the magnet portion 25 facing the focusing coil portion 26 is exposed and not covered by the anti-shake frame 23, so that the distance between the focusing coil portion 26 and the magnet portion 25 can be designed smaller to reduce the lateral dimension (dimension in the horizontal direction) of the driving device 20; the bottom surface of the magnet portion 25 facing the anti-shake coil portion 27 is exposed, so that the distance between the anti-shake coil portion 27 and the magnet portion 25 can be designed to be small to reduce the height dimension (dimension in the Z-axis direction) of the driving apparatus 20.

The focusing coil part 26 generates magnetic field interaction with the magnetic field of the magnet part 25 under current excitation, so that the focusing coil part 26 is driven, the focusing coil part 26 moves along the Z-axis direction, and the focusing carrier 22 moves along with the focusing coil part 26, thereby realizing focusing function; the anti-shake coil part 27 generates a magnetic field interaction with the magnetic field of the magnet part 25 under current excitation, and thus the magnet part 25 is driven, the magnet part 25 moves in the X-axis direction and/or the Y-axis direction, the anti-shake frame 23 moves along with the magnet part 25, and the focusing carrier 22 provided to the anti-shake frame 23 moves along with the anti-shake frame 23, thereby realizing an anti-shake function.

In the embodiment of the present application, the magnet portion 25 is multiplexed, and the magnet portion 25 is used for interaction with the focusing coil portion 26 in the process of realizing the focusing function, and is also used for interaction with the anti-shake coil portion 27 in the process of realizing the anti-shake function, so that the structural design of the driving device 20 is intensified and miniaturized.

As shown in fig. 2 to 6, in one embodiment of the present application, the magnet portion 25 includes a first magnet 251, a second magnet 252 and a third magnet 253, the first magnet 251, the second magnet 252 and the third magnet 253 are fixed in the magnet mounting groove 232 of the anti-shake frame 23 in a counterclockwise order, and the second magnet 252 and the third magnet 253 are oppositely disposed at two sides of the first magnet 251, and the three are arranged in a substantially shape structure.

The focusing coil part 26 includes a focusing coil 261, the focusing coil 261 surrounds the side wall of the focusing carrier 22 and is disposed in a focusing coil disposition position 223 of the side wall of the focusing carrier 22. The focusing coil 261 is arranged to be opposed to the second magnet 252 and the third magnet 253 in the horizontal direction, and the focusing coil 261 generates a magnetic field to interact with the second magnet 252 and the third magnet 253 under current excitation, thereby driving the focusing coil part 26 and the focusing carrier 22 to move relative to the magnet part 25 and the anti-shake frame 23.

The anti-shake coil portion 27 includes a first anti-shake coil 271, a second anti-shake coil 272, and a third anti-shake coil 273, the first anti-shake coil 271 is fixed in the anti-shake coil mounting position 2122 of the base 212, the first anti-shake coil 271 is opposite to the first magnet 251 in the height direction, the second anti-shake coil 272 is fixed in the anti-shake coil mounting position 2122 of the base 212, the second anti-shake coil 272 is opposite to the second magnet 252 in the height direction, the third anti-shake coil 273 is fixed in the anti-shake coil mounting position 2122 of the base 212, and the third anti-shake coil 273 is opposite to the third magnet 253 in the height direction.

Specifically, the first anti-shake coil 271, the second anti-shake coil 272 and the third anti-shake coil 273 are fixed to the top surface of the base 212 in a counterclockwise order, the second anti-shake coil 272 and the third anti-shake coil 273 are disposed on both sides of the first anti-shake coil 271, and the three are arranged in a substantially "" shape. Further, the first, second and third anti-shake coils 271, 272 and 273 are tiled on the top surface of the base 212.

The first anti-shake coil 271 is disposed opposite to the first magnet 251, the second anti-shake coil 272 is disposed opposite to the second magnet 252, and the third anti-shake coil 273 is disposed opposite to the third magnet 253, so that the first anti-shake coil 271, the second anti-shake coil 272, and the third anti-shake coil 273 generate magnetic fields to interact with the magnetic fields of the first magnet 251, the second magnet 252, and the third magnet 253, respectively, under current excitation, thereby driving the magnet portion 25, the anti-shake frame 23, the focusing coil portion 26, and the focusing carrier 22 to move relative to the base 212 of the fixed portion 21.

When the anti-shake frame 23 is driven to move horizontally in the X-axis direction, the second magnet 252 interacts with the second anti-shake coil 272, and the third magnet 253 interacts with the third anti-shake coil 273 to generate a driving force in the X-axis direction; when the anti-shake frame 23 is driven to move horizontally in the Y-axis direction, the first magnet 251 and the first anti-shake coil 271 interact with each other to generate a driving force in the Y-axis direction. In the present application, the longitudinal direction of the first magnet 251 is parallel to the X-axis direction, and the longitudinal directions of the second magnet 252 and the third magnet 253 are parallel to the Y-axis direction.

That is, when the anti-shake frame 23 is driven to move horizontally in the X-axis direction, both the second magnet 252 and the third magnet 253 participate in the work; when the anti-shake frame 23 is driven to move horizontally in the Y-axis direction, since no magnet is provided on the opposite side of the first magnet 251, only the first magnet 251 participates in the operation, resulting in a small driving force in that direction. To solve the above problem, in the present application, the first magnet 251 is implemented as a multi-stage magnet to increase the magnetic thrust generated when the first magnet 251 interacts with the first anti-shake coil 271, for example, the first magnet 251 may be a quadrupole magnet.

As shown in fig. 5, in one embodiment of the present application, the first magnet 251 includes a first magnetic part 251a and a second magnetic part 251b, the first magnetic part 251a and the second magnetic part 251b are stacked in a horizontal direction (a direction perpendicular to the optical axis), the second magnetic part 251b is located at a side of the first magnetic part 251a away from the optical axis, the second magnetic part 251b is located at a side of the first magnetic part 251a away from the focus carrier 22, the first magnetic part 251a is located between the focus carrier 22 and the second magnetic part 251b, an upper part of the first magnetic part 251a is an N pole, a lower part of the first magnetic part 251a is an S pole, a magnetic pole direction of the first magnetic part 251a is a downward direction, an upper part of the second magnetic part 251b is an N pole, and a lower part of the second magnetic part 251b is an upward direction, so that the first magnet 251 faces the first anti-shake coil side has the N pole and the S pole 271. Note that, in this application, the magnetic pole direction (N-S) refers to a direction in which the N pole extends toward the S pole.

Of course, in the present application, the second magnet 252 and the third magnet 253 may be implemented as two-pole magnets, and the second magnet 252 has an N pole on the side closer to the optical axis and an S pole on the side farther from the optical axis; the third magnet 253 has an N pole on the side closer to the optical axis and an S pole on the side farther from the optical axis. It is to be understood that the second magnet 252 and the third magnet 253 may be multipole magnets, such as quadrupole magnets, and the present application is not limited thereto.

Further, in one embodiment of the present application, the dimension of the first anti-shake coil 271 in the length direction is larger than the dimension of the second anti-shake coil 272 and the third anti-shake coil 273 in the length direction to increase the magnetic thrust generated when the first magnet 251 interacts with the first anti-shake coil 271.

In the present application, the second magnet 252 and the third magnet 253 of the magnet portion 25 are multiplexed, and the second magnet 252 and the third magnet 253 are used to interact with the focusing coil portion 26 in the process of realizing the focusing function and also used to interact with the anti-shake coil portion 27 in the process of realizing the anti-shake function. That is, the second magnet 252 and the third magnet 253 can simultaneously provide the magnetic fields required for the focusing coil part 26 and the anti-shake coil part 27.

Since the first magnet 251 is not used to drive the focusing coil part 26 and the focusing carrier 22 to move, the dimension of the first magnet 251 in the height direction is smaller than the second magnet 252 and the third magnet 253, and the height of the top surface of the first magnet 251 is also lower than the height of the top surfaces of the second magnet 252 and the third magnet 253.

As described above, the magnet portion 25 includes three magnets, i.e., the first magnet 251, the second magnet 252, and the third magnet 253, the magnet portion 25 is provided only on three sides of the driving device 20, the magnet portion 25 is not provided on one side of the driving device 20, and the magnet is not provided on the opposite side of the first magnet 251. It can be appreciated that, when the driving device 20 of the present embodiment is applied to an array module, the camera module unit of another array module may be disposed on a side of the driving device 20 where the magnet portion 25 is not disposed, so that the magnet portion 25 of the driving device 20 does not cause magnetic field interference to an adjacent camera module.

In another embodiment of the present application, the magnet unit 25 may include only two magnets, i.e., the first magnet 251 and the second magnet 252, and the anti-shake coil unit 27 may include a first anti-shake coil 271 facing the first magnet 251 and a second anti-shake coil 272 facing the second magnet 252. By reducing one magnet (the third magnet 253), the size of the driving device 20 can be further reduced, but the driving force of the driving device 20 is reduced, so that when the focusing function is realized, only one side is provided with the focusing coil 261 and the second magnet 252 for driving, and the focusing carrier 22 is easy to incline relative to the Z axis (optical axis) due to the interaction between the focusing coil 261 and the second magnet 252, and finally the imaging module 1 is blurred in imaging.

In still another embodiment of the present application, the magnet portion 25 may further include a fourth magnet, so that four sides of the driving device 20 are all provided with magnets, and the magnet portion 25 includes four magnets, but when the driving device 20 is used in an array module, a side of the image capturing module adjacent to the driving device 20 adjacent to the fourth magnet cannot be provided with a coil-magnet pair, so as to avoid electromagnetic interference caused by the fourth magnet pair to the coil-magnet pair of the image capturing module adjacent to the fourth magnet.

In one embodiment of the present application, the driving device 20 includes a first side 201, a second side 202, a third side 203, and a fourth side 204 sequentially disposed around a circumferential side thereof, wherein a first magnet 251 is disposed at the first side 201 of the driving device 20, a second magnet 252 is disposed at the second side 202 of the driving device 20 adjacent to the first side 201, a third magnet 253 is disposed at the fourth side 204 of the driving device 20 opposite to the second side 202, and the third side 203 is not provided with magnets.

As shown in fig. 5 and 6, the focusing coil 261 is circumferentially disposed at the first side 201, the second side 202, the third side 203, and the fourth side 204 of the driving device 20, wherein the focusing coil 261 includes a first focusing coil portion 2611 at the first side 201, a second focusing coil portion 2612 at the second side 202, a third focusing coil portion 2613 at the third side 203, and a fourth focusing coil portion 2614 at the fourth side 204. It can be seen that the first focusing coil portion 2611 provided on the same side is within the magnetic field range of the first magnet 251, the second focusing coil portion 2612 is within the magnetic field range of the second magnet 252, and the fourth focusing coil portion 2614 is within the magnetic field range of the third magnet 253, that is, after the focusing coil 261 is energized, the magnetic field generated by the first focusing coil portion 2611 interacts with the magnetic field of the first magnet 251, the magnetic field generated by the second focusing coil portion 2612 interacts with the magnetic field of the second magnet 252, and the magnetic field generated by the fourth focusing coil portion 2614 interacts with the magnetic field of the third magnet 253.

However, since the magnet portion 25 is disposed only on three sides of the driving device 20 in the present application, no magnet is disposed on the opposite side of the first magnet 251, that is, on the third side 203 opposite to the first side 201, no magnet is disposed, so that only three sides of the focusing carrier 22 are subjected to the driving force after the focusing coil 261 is energized, and the focusing carrier 22 is tilted under the asymmetric force.

Further, the focusing carrier 22 generates translational motion along the Z-axis direction and rotational motion around the Z-axis direction under the action of the driving force, that is, the focusing carrier 22 receives translational thrust and rotational thrust, and the rotational motion around the Z-axis direction generated by the focusing carrier 22 is minimized when the focusing function is implemented. Since no magnet is disposed on the opposite side of the first magnet 251, when one side of the focusing carrier 22 is subjected to the interaction of the first magnet 251 and the first focusing coil portion 2611 to generate a driving force, the other side of the focusing carrier 22 opposite to the one side is not subjected to the driving force, that is, the opposite sides of the focusing carrier 22 are not subjected to the symmetrical force to counteract the rotating force, the movement of the focusing carrier 22 about the Z axis cannot be reduced, and the dynamic gesture difference is easily generated by the focusing carrier 22.

In the present application, the second magnet 252 and the third magnet 253 of the magnet portion 25 are multiplexed, while the first magnet 251 of the magnet portion 25 is not multiplexed, i.e., the first magnet 251 is used to interact with the first anti-shake coil 271 only in the process of realizing the anti-shake function. Therefore, by reducing the interaction between the first magnet 251 and the first focusing coil portion 2611 of the focusing coil 261, the influence of the driving force generated by the first magnet 251 and the first focusing coil portion 2611 on the focusing carrier 22 can be reduced, and further, the dynamic gesture difference such as tilting or rotation generated by the focusing carrier 22 under the action of asymmetric force can be avoided.

As shown in fig. 6, in one embodiment of the present application, the first focusing coil portion 2611 of the focusing coil 261 includes a straight edge section 2611a parallel to the longitudinal direction of the first magnet 251, and oblique edge sections 2611b and 2611c connected to the straight edge section 2611a and forming an angle with the longitudinal direction of the first magnet 251, wherein the number of the oblique edge sections 2611b and 2611c is two, and the two oblique edge sections 2611b and 2611c respectively extend from both ends of the straight edge section 2611a toward the optical axis direction, that is, the first focusing coil portion 2611 includes a straight edge section 2611a and two oblique edge sections 2611b and 2611c connected to the straight edge section 2611 a. In a specific example of the present application, the hypotenuse segments 2611b, 2611c may be straight segments, or the hypotenuse segments 2611b, 2611c may also be curved segments, which is not limited in this application.

It will be appreciated that, on the one hand, the magnetic flux passing through the coil is greatest when the magnetic lines of force of the magnet are perpendicular to the plane of the coil, and the effective reaction between the magnet and the coil is strongest. From this, it can be seen that the straight side section 2611a of the first focusing coil section 2611 is perpendicular to the magnetic force lines of the first magnet 251, and when the length of the straight side section 2611a of the first focusing coil section 2611 is longer, the more magnetic force lines the focusing coil 261 passes through, the larger the magnetic flux passing through the focusing coil 261, the stronger the effective reaction between the focusing coil 261 and the first magnet 251, the stronger the interaction between the focusing coil 261 and the first magnet 251, and the larger the influence on the focusing carrier 22.

On the other hand, the straight edge section 2611a of the first focusing coil section 2611 is closer to the first magnet 251 when viewed in the optical axis direction, i.e., when viewed in a plan view, the hypotenuse sections 2611b, 2611c of the first focusing coil section 2611 are farther from the first magnet 251, i.e., the distance from the straight edge section 2611a to the first magnet 251 is smaller than the distance from the two hypotenuse sections 2611b, 2611c to the first magnet 251, and the effective reaction between the straight edge section 2611a of the first focusing coil section 2611 and the first magnet 251 is larger. When the length of the straight edge section 2611a of the first focusing coil section 2611 is longer, the shorter the lengths of the two oblique edge sections 2611b, 2611c connected thereto, the stronger the interaction between the straight edge section 2611a of the first focusing coil section 2611 and the first magnet 251, the stronger the interaction between the focusing coil 261 and the first magnet 251, the greater the influence on the focusing carrier 22.

In summary, in the present application, by reducing the length of the straight section 2611a of the first focusing coil portion 2611, the effective reaction between the first magnet 251 and the focusing coil 261 is reduced. In a specific example of the present application, the length of the straight section 2611a of the first focusing coil portion 2611 is smaller than the lengths of the hypotenuse sections 2611b, 2611c, wherein the length of the straight section 2611a is shortened to the lowest dimension. In a specific example of the present application, the length of straight segment 2611a ranges from: 0.1mm-1mm; further, the length of straight segment 2611a ranges from: 0.2mm-0.4mm. On the one hand, the magnetic force lines passing through the focusing coil 261 can be reduced, and the effective reaction between the focusing coil 261 and the first magnet 251 is reduced; on the other hand, the first coil part can be further away from the first magnet 251, and the weaker the interaction between the focusing coil 261 and the first magnet 251 is, so that the influence of the asymmetric force on the focusing carrier 22 is reduced. Moreover, the design can effectively reduce the resistance value of the unnecessary area. It will be appreciated that the size of the straight segment 2611a cannot be infinitely small, avoiding making the shaping of the focusing coil 261 more difficult.

In another specific example of the present application, the first focusing coil portion 2611 of the focusing coil 261 has an arc structure or an approximately arc structure, and at this time, the first focusing coil portion 2611 does not have the straight-side segment 2611a, so that an effect of reducing the effective reaction between the first magnet 251 and the focusing coil 261 can be further achieved.

With continued reference to fig. 6, in one embodiment of the present application, the focusing coil 261 is of a symmetrical structure, i.e., the second focusing coil portion 2612 is symmetrically disposed with the fourth focusing coil portion 2614, and the first focusing coil portion 2611 is symmetrically disposed with the third focusing coil portion 2613. In a specific example of the present application, the second focusing coil portion 2612 of the focusing coil 261 has only a straight-side section and does not have a hypotenuse section, that is, the second focusing coil portion 2612 extends along the length direction of the second magnet 252 and is disposed in parallel with the length direction of the second magnet 252; the fourth focusing coil portion 2614 of the focusing coil 261 has only a straight-side section and does not have a sloping-side section, that is, the fourth focusing coil portion 2614 extends along the length direction of the third magnet 253 and is arranged in parallel with the length direction of the third magnet 253.

The sum of the magnetic thrust force F2 generated by the interaction between the second focusing coil portion 2612 and the second magnet 252 and the magnetic thrust force F3 generated by the interaction between the fourth focusing coil portion 2614 and the third magnet 253 is 20 times or more the magnetic thrust force F1 generated by the interaction between the first focusing coil portion 2611 and the first magnet 251. That is, the larger the ratio of the sum of F2 and F3 to F1, the smaller the interaction between the first focusing coil part 2611 and the first magnet 251, and the smaller the asymmetric force applied to the focusing carrier 22, thereby avoiding the tilting or rotation of the focusing carrier 22.

It is understood that the length of the first magnet 251, the length of the second magnet 252, the length of the third magnet 253, and the lengths of the second focusing coil portion 2612 and the fourth focusing coil portion 2614 are determined by the size of the driving device 20. In the present application, the size of the magnetic thrust force F1 generated by the interaction between the first focusing coil portion 2611 and the first magnet 251 is adjusted by adjusting the length of the straight segment 2611a of the first focusing coil portion 2611.

Wherein, in one embodiment of the present application, the carrier body 221 includes a first side wall 2210, a second side wall 2211, a third side wall 2212, and a fourth side wall 2213 disposed in this order around a circumferential side thereof, wherein the first side wall 2210 and the third side wall 2212 are opposite, and the second side wall 2211 is opposite to the fourth side wall 2213. The focusing coil 261 is disposed around the first, second, third and fourth side walls 2210, 2211, 2212 and 2213 of the carrier body 221, the first focusing coil portion 2611 of the focusing coil 261 is located at the first side wall 2210, the second focusing coil portion 2612 of the focusing coil 261 is located at the second side wall 2211, the third focusing coil portion 2613 of the focusing coil 261 is located at the third side wall 2212, the fourth focusing coil portion 2614 of the focusing coil 261 is located at the fourth side wall 2213, and the first, second, third and fourth focusing coil portions 2611, 2612, 2613, 2614 of the focusing coil 261 are adapted to the shapes of the first, second, third and fourth side walls 2210, 2212, 2213 of the focusing carrier 22.

In a specific example of the present application, the first side wall 2210 and the third side wall 2212 have a concave structure, the first side wall 2210 and the third side wall 2212 have openings facing the optical axis, and the first side wall 2210 and the third side wall 2212 are symmetrically disposed with respect to the through hole of the focusing carrier 22; the second and fourth side walls 2211 and 2213 are planar structures, and the second and fourth side walls 2211 and 2213 are symmetrically disposed with respect to the through hole of the focus carrier 22.

Further, as shown in fig. 2, in an embodiment of the present application, the driving device 20 further includes a magnetic conductive member 28, and the magnetic conductive member 28 is disposed between the magnet portion 25 and the anti-shake frame 23 for enhancing the magnetic field strength of the magnet portion 25. The magnetic conductive member 28 includes a first magnetic conductive member 281, a second magnetic conductive member 282, and a third magnetic conductive member 283, the first magnetic conductive member 281 acts on the first magnet 251, the second magnetic conductive member 282 acts on the second magnet 252, and the third magnetic conductive member 283 acts on the third magnet 253. In a specific example of the present application, the magnetic conductive member 28 is fixed in the magnet seating groove 232 of the anti-shake frame 23 by bonding or the like; in another specific example of the present application, the magnetic conductive member 28 is fitted to the frame body 231 of the anti-shake frame 23 by a process such as insert molding.

The first magnetic conductive member 281 is disposed on a side of the first magnet 251 away from the first anti-shake coil 271, that is, the first magnetic conductive member 281 is disposed above the first magnet 251, which on the one hand can concentrate the magnetic force lines of the first magnet 251 downward to increase the magnetic field strength of the first magnet 251; on the other hand, the magnetic force of the first magnet 251 is prevented from overflowing, so that the interaction between the first magnet 251 and the focusing coil 261 is prevented, and the focusing carrier 22 is prevented from being subjected to asymmetric force. In a specific example of the present application, the first magnetic conductive member 281 has a U-shaped structure, and has an opening facing the first anti-shake coil 271, and the first magnetic conductive member 281 can cover the top surface and the side surface of the first magnet 251 so as to avoid the magnetic force of the first magnet 251 from overflowing. In another specific example of the present application, the first magnetic conductive member 281 has a planar structure and covers only the top surface of the first magnet 251.

The second magnetic conductive member 282 is disposed on a side of the second magnet 252 away from the focusing coil 261, that is, the second magnetic conductive member 282 is disposed on a side of the second magnet 252 away from the second focusing coil portion 2612, so that the magnetic field intensity of the side of the second magnet 252 facing the focusing coil 261 can be increased. The third magnetic conductive member 283 is disposed on a side of the third magnet 253 facing away from the focusing coil 261, that is, the third magnetic conductive member 283 is disposed on a side of the third magnet 253 facing away from the fourth focusing coil portion 2614, so that the magnetic field strength of the side of the third magnet 253 facing the focusing coil 261 can be increased. Further, the second magnet 252 may be fixed to the second magnetic conductive member 282 by magnetic attraction with the second magnetic conductive member 282, or the second magnet 252 may be more firmly attached to the frame body 231 by magnetic attraction with the second magnetic conductive member 282; the third magnet 253 is fixed to the third magnetic conductor 283 by magnetic attraction with the third magnetic conductor 283 or is more firmly attracted to the frame body 231.

It is understood that in the present application, the magnetic conductive member 28 may not have magnetism, for example, the magnetic conductive member 28 may be made of ferrite, or the magnetic conductive member 28 itself may be a permanent magnet, which is not limited in the present application.

As shown in fig. 2, 4, and 7 to 11, in one embodiment of the present application, the suspension 24 is provided to the focus carrier 22, the anti-shake frame 23, and the base 212 such that the focus carrier 22 is suspended in the anti-shake frame 23, and the anti-shake frame 23 is suspended in the base 212. The suspension portion 24 includes a first suspension portion 241 and a side suspension portion 242, wherein the first suspension portion 241 is connected between the focusing carrier 22 and the anti-shake frame 23, and is used for limiting movement of the focusing carrier 22 along the optical axis direction, and the focusing carrier 22 is suspended in the anti-shake frame 23 by the first suspension portion 241; the side suspension 242 is connected between the anti-shake frame 23 and the base 212, for restricting movement of the anti-shake frame 23 in directions perpendicular to the optical axis (X-axis direction and Y-axis direction), and the anti-shake frame 23 is suspended in the base 212 by the side suspension 242.

Specifically, in one embodiment of the present application, the first suspension portion 241 includes a first elastic piece 2414 and a second elastic piece 2415 that are disposed on the driving device 20 at intervals along the optical axis direction, the first elastic piece 2414 is disposed on the object side of the focusing carrier 22, the second elastic piece 2415 is disposed on the image side of the focusing carrier 22 to suspend the focusing carrier 22 in the anti-shake frame 23 in a resettable manner, and the focusing carrier 22 is suspended in the anti-shake frame 23 under the action of the first elastic piece 2414 and the second elastic piece 2415.

The first elastic sheet 2414 and the second elastic sheet 2415 are integrally in a sheet structure, the first elastic sheet 2414 is respectively connected to the top surface of the anti-shake frame 23 and the top surface of the focusing carrier 22, and the second elastic sheet 2415 is respectively connected to the bottom surface of the anti-shake frame 23 and the bottom surface of the focusing carrier 22, so as to support and limit the movement of the focusing carrier 22, which is not only helpful for improving the structural stability of the driving device 20, but also for enabling the focusing carrier 22 to move within a certain range of travel.

More specifically, in one embodiment of the present application, the first suspension 241 includes an outer profile 2411 fixed to the anti-shake frame 23, an inner profile 2412 fixed to the focus carrier 22, and a deformed portion 2413 integrally connecting the outer profile 2411 and the inner profile 2412. The deformation portion 2413 extends from the outer profile 2411 to the inner profile 2412 in a bending manner, so as to provide enough space for the movement of the focusing carrier 22, not only provide a guarantee for the movement stroke of the focusing carrier 22, but also reduce the driving resistance of the focusing carrier 22 and improve the optical focusing sensitivity of the driving device 20.

It is understood that, as the length of the deformed portion 2413 is longer, the more the deformed portion 2413 is bent, the deformed portion 2413 itself is deformed slightly after being deformed, and the deformed portion 2413 is more easily restored after being stretched. In one specific example of the present application, the deformed portion 2413 is an elastic thread-like structure made of an elastic material (e.g., rubber, plastic, etc.); in another specific example of the present application, the deformed portion 2413 may also be an elastic wire structure made of a rigid material (e.g., metal, etc.).

The outer contour 2411 of the first elastic sheet 2414 is fixed to the top surface of the anti-shake frame 23, the inner contour 2412 of the first elastic sheet 2414 is fixed to the top surface of the focusing carrier 22, and the deformed portion 2413 of the first elastic sheet 2414 integrally connects the outer contour 2411 of the first elastic sheet 2414 and the inner contour 2412 of the first elastic sheet 2414; the outer contour 2411 of the second elastic sheet 2415 is fixed to the bottom surface of the anti-shake frame 23, the inner contour 2412 of the second elastic sheet 2415 is fixed to the bottom surface of the focusing carrier 22, and the deformed portion 2413 of the second elastic sheet 2415 integrally connects the outer contour 2411 of the second elastic sheet 2415 and the inner contour 2412 of the second elastic sheet 2415. The focusing carrier 22 is clamped between the first elastic sheet 2414 and the second elastic sheet 2415 in such a way that the focusing carrier 22 is suspended in the anti-shake frame 23.

The inner and outer profiles 2412, 2411 of the first shrapnel 2414 may be fixedly attached to the focus carrier 22 and the anti-shake frame 23 by, but not limited to, means such as bonding or heat staking; the inner and outer profiles 2412, 2411 of the second spring 2415 may be fixedly attached to the focus carrier 22 and the anti-shake frame 23 by, but not limited to, means such as adhesive or heat staking. When the focusing carrier 22 is driven to move along the Z-axis direction, the first elastic piece 2414 and the second elastic piece 2415 deform to accumulate elastic force, and when the focusing carrier 22 is stopped, the elastic force accumulated by the first elastic piece 2414 and the second elastic piece 2415 is released, so as to drive the focusing carrier 22 to return to the original position.

Further, in one embodiment of the present application, the first elastic piece 2414 may have an integral structure, the second elastic piece 2415 has a split structure, and the second elastic piece 2415 may be used to implement circuit conduction of the driving device 20; the first spring 2414 may maintain a better consistency throughout the process of being installed, such that the entire plane of the first spring 2414 creates less installation tolerances. In another embodiment of the present application, the first elastic piece 2414 has a split structure, the second elastic piece 2415 has a split structure, and both the first elastic piece 2414 and the second elastic piece 2415 may be used to implement the circuit conduction of the driving device 20.

The first elastic sheet 2414 is of a symmetrical structure, and when the focusing carrier 22 moves along the Z-axis direction, the symmetrical first elastic sheet 2414 can inhibit the focusing carrier 22 from generating a movement rotating around the Z-axis. In a specific example of the present application, the first elastic sheet 2414 is a split structure, which includes four first elastic sheet components disposed at four corners of the focusing carrier 22 and the anti-shake frame 23, so as to provide a smoother support for the focusing carrier 22, and also provide a symmetrical restoring force for the focusing carrier 22. In another specific example of the present application, the first elastic piece 2414 is a split structure, which includes two first elastic piece parts symmetrically disposed between the focus carrier 22 and the anti-shake frame 23; alternatively, in yet another specific example of the present application, the first shrapnel 2414 is a unitary structure having one common inner profile 2412, four outer profiles 2411, and four deformations 2413.

The second elastic sheet 2415 is of a symmetrical structure, and when the focusing carrier 22 moves along the Z-axis direction, the symmetrical second elastic sheet 2415 can inhibit the focusing carrier 22 from generating a movement rotating around the Z-axis. In a specific example of the present application, the second elastic sheet 2415 is a split structure, and includes two portions that are axially symmetrically arranged, namely, the first lower elastic sheet 24151 and the second lower elastic sheet 24152, where the axially symmetrical second elastic sheet 2415 can further improve the flatness of the second elastic sheet 2415, so as to reduce the inclination tolerance of the driving device 20, and improve the assembly precision of the driving device 20. In a specific example of the present application, the first lower spring piece 24151 and the second lower spring piece 24152 extend along the length direction of the second magnet 252 and the third magnet 253, and the first lower spring piece 24151 and the second lower spring piece 24152 are symmetrically distributed with respect to the center line of the first magnet 251. Namely, the first lower spring plate 24151 and the second lower spring plate 24152 are symmetrically disposed on the bottom surface of the focusing carrier 22.

In one embodiment of the present application, each portion of the second elastic sheet 2415, i.e., the first lower elastic sheet 24151 and the second lower elastic sheet 24152, has two outer profiles 2411, two deformed portions 2413 and one inner profile 2412, respectively, wherein one end of the inner profile 2412 is connected to one deformed portion 2413 and the other end of the deformed portion 2413 is connected to one outer profile 2411; the other end of the inner profile 2412 is connected to another deformation 2413, and the other end of the deformation 2413 is connected to another outer profile 2411. That is, the first lower spring piece 24151 and the second lower spring piece 24152 have the following structure: outer contour 2411, deformed portion 2413, inner contour 2412, deformed portion 2413, and outer contour 2411.

Specifically, the first lower spring plate 24151 of the second spring plate 2415 includes a first outer contour 2411a, a second outer contour 2411b, a first inner contour 2412a, a first deformed portion 2413a connecting the first inner contour 2412a and the first outer contour 2411a, and a second deformed portion 2413b connecting the first inner contour 2412a and the second outer contour 2411 b.

Wherein the first inner profile 2412a is fixed to the focus carrier 22, and the first outer profile 2411a and the second outer profile 2411b are fixed to the anti-shake frame 23. In a specific example of the present application, the first and second profiles 2411a and 2411b are fixed to opposite sides of the anti-shake frame 23, such as the first side 201 and the third side 203 opposite thereto.

The second lower leaf 24152 of the second leaf 2415 includes a third outer contour 2411c, a fourth outer contour 2411d, a second inner contour 2412b, a third deformed portion 2413c connecting the second inner contour 2412b and the third outer contour 2411c, and a fourth deformed portion 2413d connecting the second inner contour 2412b and the fourth outer contour 2411 d. Wherein the second inner profile 2412b is fixed to the focus carrier 22, and the third outer profile 2411c and the fourth outer profile 2411d are fixed to the anti-shake frame 23. In a specific example of the present application, the third and fourth profiles 2411c and 2411d are fixed to opposite sides of the anti-shake frame 23, such as the first side 201 and the third side 203 opposite thereto.

The first lower spring piece 24151 and the second lower spring piece 24152 of the second spring piece 2415 are oppositely disposed on one side close to the second magnet 252 and the third magnet 253. The second magnet 252 and the third magnet 253 are disposed on two opposite sides of the focusing coil 261, and after the focusing coil 261 is energized, the second magnet 252 and the third magnet 253 interact with the focusing coil 261 to generate symmetrical acting forces to drive the focusing coil 261 and the focusing carrier 22 to move along the optical axis direction. The first lower spring plate 24151 and the second lower spring plate 24152 of the second spring plate 2415 may thus generate symmetrical restoring forces so that the focus carrier 22 can move smoothly.

As shown in fig. 10 and 11, in one embodiment of the present application, the side suspension 242 is provided to the side walls of the anti-shake frame 23 and the base 212. The first elastic piece 2414 is disposed on the top surface of the anti-shake frame 23, the second elastic piece 2415 is disposed on the bottom surface of the anti-shake frame 23, and the side suspension 242 extends from the bottom surface of the anti-shake frame 23 to the side surface of the anti-shake frame 23. One end of the side suspension portion 242 is connected to the anti-shake frame 23, and the other end of the side suspension portion 242 is connected to the base 212, so as to support and limit the anti-shake frame 23, which is not only helpful for improving the structural stability of the driving device 20, but also for moving and resetting the anti-shake frame 23 within a certain travel range.

Referring to fig. 7 to 10, the side suspension portion 242 includes at least two side spring plates, each of which includes a first connection end 2425 connected to the anti-shake frame 23, a second connection end 2426 connected to the base 212, and an elastic deformation portion 2427 integrally connecting the first connection end 2425 and the second connection end 2426. Wherein the elastic deformation portion 2427 includes a plurality of interconnected extending bending sections in the X-direction and a plurality of interconnected extending bending sections in the Y-direction, wherein the plurality of interconnected extending bending sections in the X-direction are interconnected with the plurality of interconnected extending bending sections in the Y-direction. The elastic deformation portion 2427 is deformed after being stretched in the X direction and the Y direction to generate corresponding restoring forces in the X direction and the Y direction, so that the anti-shake frame 23 returns to its original position (i.e., the position of the anti-shake frame 23 before movement) under the action of the side suspension portion 242.

The side suspending part 242 has a planar structure 242a and an upright structure 242b perpendicular or approximately perpendicular to each other, the first and second connection ends 2425 and 2426 extend in the horizontal direction to form the planar structure 242a, and the elastic deformation part 2427 extends in the height direction to form the upright structure 242b. That is, the side suspension 242 includes a planar structure 242a connecting the anti-shake frame 23 and the base 212, and an upright structure 242b bent from the planar structure 242a and extending in the height direction. In a specific example of the present application, the planar structure 242a is integrally connected to the second elastic sheet 2415 in a horizontal direction, and the upright structure 242b is bent from the planar structure 242a and extends in a height direction. The plurality of side elastic pieces may be formed by bending the horizontal plane where the second elastic piece 2415 is located upward along the height direction.

A bending portion 2428 is disposed between the first connecting end 2425 and the elastic deformation portion 2427, and a bending portion 2428 is disposed between the second connecting end 2426 and the elastic deformation portion 2427, so as to bend the side suspension portion 242 from a horizontal extension to a height extension.

In one embodiment of the present application, the side suspension portion 242 includes four side elastic pieces, two of the four side elastic pieces are disposed on one side of the anti-shake frame 23, and the other two of the four side elastic pieces are symmetrically disposed on the other side of the anti-shake frame 23 opposite to the one side. For example, in a specific example of the present application, two of the four side spring pieces are disposed on the first side 201, and the other two of the four side spring pieces are symmetrically disposed on the third side 203 opposite to the first side 201.

Further, in one embodiment of the present application, the elastic deformation portions 2427 of the four side elastic sheets are symmetrically disposed on one side of the anti-shake frame 23 where the first magnet 251 is located and the other side opposite to the one side, such as the first side 201 and the third side 203.

Wherein the planes of the elastic deformation parts 2427 of the two side spring plates positioned on the same side are mutually overlapped; the planes of the elastic deformation portions 2427 of the two side spring plates positioned at the opposite sides are parallel to each other. For example, in a specific example of the present application, the elastic deformation portions 2427 of two side elastic pieces of the four side elastic pieces are located on the first side 201, and the elastic deformation portions 2427 of the two side elastic pieces located on the side overlap each other; the elastic deformation parts 2427 of the other two side spring plates are positioned on the third side 203, and the elastic deformation parts 2427 of the two side spring plates positioned on the third side are overlapped with each other; the plane of the elastic deformation portion 2427 of one side elastic piece located on the first side 201 and the plane of the elastic deformation portion 2427 of one side elastic piece located on the third side 203 are parallel to each other.

The plane of the standing structure 242b formed by the elastic deformation portion 2427 of each side spring is parallel to the longitudinal direction of the first magnet 251. The vertical structure 242b formed by the elastic deformation portion 2427 of each side spring piece has the same length direction as the length direction of the first magnet 251 when the plane is seen in the height direction.

As shown in fig. 8A and 8B, fig. 8B is an enlarged schematic view of the circular region a of fig. 8A, in which the erected structure 242B has a certain width W1 in the longitudinal direction of the first magnet 251 in plan view, and the erected structure 242B has a certain width W2 in the width direction of the first magnet 252 (or in other words in the longitudinal direction of the second magnet 252 and the third magnet 253), wherein the width W1 of the erected structure 242B in the longitudinal direction of the first magnet 251 is larger than the width W2 of the erected structure 242B in the longitudinal direction of the second magnet 252 or the third magnet 253, that is, W1 > W2.

Since the longitudinal direction of the first magnet 251 is the X-axis direction and the longitudinal direction of the second magnet 252 or the third magnet 253 is the Y-axis direction, the widths of the elastic deformation portions 2427 of the side hanging portions 242 in the X-axis direction and in the Y-axis direction are different, and thus the K value in the X-axis direction and the K value in the Y-axis direction of the elastic deformation portions 2427 of the side hanging portions 242 are greatly different. The plane is seen in the height direction, the direction K in which the width of the elastic deformation portion 2427 is smaller, and the direction K in which the width of the elastic deformation portion is larger.

Wherein, the direction of the elastic deformation part 2427 with smaller width is the same as the direction of the anti-shake coil part 27 driving the first magnet 251 to move when the plane is seen along the height direction, namely, the direction of the elastic deformation part 2427 with smaller width is seen from the top view; the direction in which the elastic deformation portion 2427 is wider is the same as the direction in which the anti-shake coil portion 27 drives the second magnet 252 or the third magnet 253 to move.

In a specific example of the present application, the width of the elastic deformation portion 2427 of the side suspension portion 242 along the Y axis direction is smaller, the K value of the elastic deformation portion 2427 is smaller, and the elastic deformation portion 2427 can be deformed under the action of a smaller driving force, so that the first magnet 251 is arranged along the X axis direction, and the driving force along the Y axis direction is generated by the action of the first magnet 251 and the first anti-shake coil 271 to drive the elastic deformation portion 2427 to deform; since the elastic deformation portion 2427 of the side suspension portion 242 has a large width in the X-axis direction and is deformable by a large driving force, the second magnet 252 and the third magnet 253 are arranged in the Y-axis direction, and the second magnet 252 and the third magnet 253 interact with the second anti-shake coil 272 and the third anti-shake coil 273 to generate a driving force in the X-axis direction to deform the elastic deformation portion 2427.

Further, the direction in which the width of the elastic deformation portion 2427 is smaller is the same as the direction in which the first magnet 251 is driven, as viewed in the height direction thereof; the direction in which the width of the elastic deformation portion 2427 is large is the same as the direction in which the second magnet 252 or the third magnet 253 is driven. In a specific example of the present application, the direction in which the width of the elastic deformation portion 2427 is smaller is the Y-axis direction, and the direction in which the first magnet 251 interacts with the first anti-shake coil 271 to generate the driving force is the Y-axis direction; the direction in which the width of the elastic deformation portion 2427 is large is the X-axis direction, and the direction in which the second magnet 252 and the third magnet 253 interact with the second anti-shake coil 272 and the third anti-shake coil 273 to generate driving force is the X-axis direction.

The arrangement mode can determine the magnets arranged in the direction according to the thickness of the elastic deformation part 2427 along the X-axis direction and the Y-axis direction, on one hand, the functions of each part of the side suspension part 242 are more fully utilized, and on the other hand, when the driving device 20 in the embodiment is applied to an array module, the image pickup module 1 side in the embodiment can closely place the image pickup module monomer of another array module without interference, and the arrangement mode of the application is also beneficial to reducing the cost.

In this application, each side elastic piece of the side suspension portion 242 may be integrally connected with the first elastic piece 2414 or the second elastic piece 2415. It can be appreciated that each side elastic piece of the side suspension portion 242 may be formed by bending after being integrally formed with the first elastic piece 2414 or the second elastic piece 2415, or each side elastic piece of the side suspension portion 242 may be formed by manufacturing and forming and then connecting to the first elastic piece 2414 or the second elastic piece 2415 by welding or the like, which is not limited in this application.

However, when the side suspension portion 242 is integrally connected to the first elastic sheet 2414, the side suspension portion 242 is close to the object side of the driving device 20, and the bearing surface of the side suspension portion 242 is higher. If the height of the base 212 is low, the elastic deformation portion 2427 of the side suspension portion 242 needs to be extended by a long length so that the second connection end 2426 of the side suspension portion 242 can be connected to the base 212. This would result in the elastic deformation portion 2427 of the side suspension portion 242 extending a long length, with less controllability and greater difficulty in the manufacturing process; if the height of the base 212 is increased and extends toward the object side, the reliability of the base 212 is lower, and the reliability of the entire driving device 20 is reduced. Further, if the circuit of the driving device 20 is conducted by the first elastic sheet 2414 and the side suspension 242, the conductive structure is further complicated, so that the cost is increased.

In the present application, the side suspension 242 and the second elastic piece 2415 are integrally connected, that is, the side suspension 242 and the second elastic piece 2415 are integrally connected, the side suspension 242 extends from the image side of the driving device 20 toward the object side, the side suspension 242 extends from the bottom surface of the anti-shake frame 23 to the side surface of the anti-shake frame 23, and the anti-shake frame 23 is suspended in the base 212 under the action of the side suspension 242. Further, the second connection end 2426 of the side suspension 242 is fixedly attached to the base boss 2123 of the base 212 by, but not limited to, bonding or heat staking, and the first connection end 2425 of the side suspension 242 is indirectly fixed to the anti-shake frame 23 by being connected to the second elastic sheet 2415.

Wherein, the plane of the base boss 2123 where the second connection end 2426 is connected is lower than the plane of the anti-shake frame 23 where the first connection end 2425 is connected. This arrangement allows the bearing surface of the side suspension 242 on the base 212 to be made lower, making the base 212 simpler and more reliable to form.

Further, the height of the side suspension portion 242 extending at the side of the anti-shake frame 23 is lower than the top surface of the anti-shake frame 23, that is, when the side suspension portion 242 is integrally connected with the second elastic sheet 2415, the extending length of the elastic deformation portion 2427 of the side suspension portion 242 along the height direction can be further shortened, so that the controllability of the side suspension portion 242 is higher, and the manufacturing and shaping are simpler. Of course, the second spring 2415 is closer to the base 212, and a simpler conductive structure may be used to implement the circuit conduction of the driving device 20.

It can be appreciated that the elastic deformation portion 2427 of the side suspension portion 242 in the present application extends toward the object side along the height direction, and since the extending height of the elastic deformation portion 2427 is shorter, compared with the prior art, the present application eliminates the provision of damping compound at the top end of the elastic deformation portion 2427, reduces the space required for providing the damping compound in the driving device 20, and further achieves the reduction of the size of the driving device 20.

The side suspension portion 242 and the second elastic sheet 2415 are integrally formed, and bending the side suspension portion 242 can significantly raise the K value (elastic coefficient) of the side suspension portion 242 and the second elastic sheet 2415, so as to support the entire anti-shake frame 23, so that the anti-shake frame 23 is suspended in the base 212. Further, the elastically deforming part 2427 of the side suspension part 242 may be extended to a small height, contributing to cost reduction.

As shown in fig. 7 and 9, in one embodiment of the present application, the side suspension portion 242 includes a first side spring 2421, a second side spring 2422, a third side spring 2423 and a fourth side spring 2424. The first side spring plate 2421, the second side spring plate 2422 and the first lower spring plate 24151 of the second spring plate 2415 are integrally connected to form a first lower suspension assembly 2401, and the third side spring plate 2423, the fourth side spring plate 2424 and the second lower spring plate 24152 of the second spring plate 2415 are integrally connected to form a second lower suspension assembly 2402, wherein the first lower suspension assembly 2401 and the second lower suspension assembly 2402 are symmetrically arranged. That is, the first side elastic piece 2421 and the second side elastic piece 2422 are disposed on one side of the driving device 20, and the third side elastic piece 2423 and the fourth side elastic piece 2424 are disposed on the other side of the driving device 20 opposite to the one side, so that the anti-shake frame 23 receives a symmetrical restoring force after moving. In a specific example of the present application, the first side elastic piece 2421 and the second side elastic piece 2422 are respectively located at a side close to the second magnet 252, and the third side elastic piece 2423 and the fourth side elastic piece 2424 are respectively located at a side close to the third magnet 253. That is, first lower suspension element 2401 extends in the longitudinal direction of second magnet 252, second lower suspension element 2402 extends in the longitudinal direction of third magnet 253, and first lower suspension element 2401 and second lower suspension element 2402 are symmetrical to each other.

Specifically, the first connection end 2425 of the first side elastic piece 2421 is indirectly connected to the anti-shake frame 23 through the first outer contour 2411a connected to the second elastic piece 2415, and the second connection end 2426 of the first side elastic piece 2421 is directly connected to the base 212; the first connection end 2425 of the second side spring 2422 is indirectly connected to the anti-shake frame 23 through the second outline 2411b connected to the second spring 2415, and the second connection end 2426 of the second side spring 2422 is connected to the base 212; the first connection end 2425 of the third side spring 2423 is indirectly connected to the anti-shake frame 23 through the third profile 2411c connected to the second spring 2415, and the second connection end 2426 of the third side spring 2423 is directly connected to the base 212; the first connection end 2425 of the fourth side spring 2424 is indirectly connected to the anti-shake frame 23 through the fourth outer profile 2411d connected to the second spring 2415, and the second connection end 2426 of the fourth side spring 2424 is directly connected to the base 212.

The second connection end 2426 of the first side spring 2421, the second connection end 2426 of the second side spring 2422, the second connection end 2426 of the third side spring 2423, and the second connection end 2426 of the fourth side spring 2424 are fixed to the base boss 2123, so that the first side spring 2421, the second side spring 2422, the third side spring 2423, and the fourth side spring 2424 are connected to the base 212.

Referring to fig. 9, in one embodiment of the present application, at least a portion of the second elastic sheet 2415 and at least a portion of the side suspension 242 form a lower suspension assembly, which may also be said to include at least a lower suspension assembly including a lower elastic sheet and at least two side elastic sheets integrally connected to the lower elastic sheet, and the at least lower suspension assembly is disposed between the base 212 and the anti-shake frame 23 for supporting and limiting the anti-shake frame 23. It is understood that in the present application, the structures of the lower spring and the two side springs may follow the structures of the side suspension 242 and the second spring 2415 described above.

The number of the lower suspension assemblies is at least two, the at least two lower suspension assemblies are symmetrically arranged on the bottom surface of the anti-shake frame 23, and the anti-shake frame 23 is suspended in the base 212 under the action of the lower suspension assemblies. When the driving assembly drives the anti-shake frame 23 to move relative to the base 212, at least two side elastic pieces of the lower suspension assembly deform to accumulate elastic force, and when the anti-shake frame 23 is stopped, the elastic force accumulated by the at least two side elastic pieces of the lower suspension assembly is released to drive the anti-shake frame 23 to return to the original position.

In a specific example of the present application, the number of lower suspension assemblies is two, including a first lower suspension assembly 2401 and a second lower suspension assembly 2402. The lower spring plate includes a first lower spring plate 24151 and a second lower spring plate 24152, at least two side spring plates include a first side spring plate 2421, a second side spring plate 2422, a third side spring plate 2423 and a fourth side spring plate 2424, and the first side spring plate 2421, the second side spring plate 2422 and the first lower spring plate 24151 are connected together to form a first lower suspension assembly 2401; the third side spring 2423, the fourth side spring 2424, and the second lower spring 24152 are connected together to form a second lower suspension assembly 2402. The first and second lower suspension assemblies 2401 and 2402 are symmetrically disposed between the anti-shake frame 23 and the base 212 to provide a more symmetrical restoring force to the anti-shake frame 23.

It is understood that in the present application, the at least two side spring plates include a planar structure 242a connecting the base 212 and the lower spring plate, an upright structure 242b bent from the planar structure 242a and extending in the height direction, and a bending portion 2428 connecting the planar structure 242a and the upright structure 242b, wherein the planar structures 242a of the at least two side spring plates are located on the same side of the bending portion 2428. It can also be said that, when at least one lower suspension assembly is tiled on a horizontal plane, the planar structure 242a of each side spring is disposed on the same side of the upright structure 242b, and the upright structure 242b of each side spring is bent in the same direction from the same side of the planar structure 242a, this arrangement can improve the uniformity of at least one lower suspension assembly and also can improve the flatness of at least one lower suspension assembly.

The lower spring plate is disposed between at least two side spring plates, and the lower spring plate includes an inner profile 2412, two deformation portions 2413 connected to the inner profile 2412, and two outer profiles 2411 connected to the two deformation portions 2413, and the planar structures 242a of the two side spring plates extend along the same direction and are respectively connected to the two outer profiles 2411.

Specifically, each side spring plate includes a first connection end 2425 connected to the outer profile 2411 of the lower spring plate 2415, a second connection end 2426 connected to the base 212, and an elastic deformation portion 2427 integrally connecting the first connection end 2425 and the second connection end 2426, the first connection end 2425 and the second connection end 2426 extending in the horizontal direction to form the planar structure 242a, and the elastic deformation portion 2427 extending in the height direction to form the upright structure 242b.

More specifically, a bending portion 2428 is disposed between the first connecting end 2425 and the elastic deformation portion 2427, a bending portion 2428 is disposed between the second connecting end 2426 and the elastic deformation portion 2427, and the bending portion 2428 bends each side spring plate from extending in the horizontal direction to extending in the height direction along the same direction.

With continued reference to fig. 9, in an embodiment of the present application, the planar structures 242a of the first side elastic piece 2421 and the second side elastic piece 2422 are located on the same side of the bending portion 2428, and the first side elastic piece 2421 and the second side elastic piece 2422 are bent along the same direction; the planar structures 242a of the third side spring plate 2423 and the fourth side spring plate 2424 are located on the same side of the bending portion 2428, and the third side spring plate 2423 and the fourth side spring plate are bent along the same direction. In another embodiment of the present application, the planar structures 242a of the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424 are all located at the same side of the bending portion 2428, and the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424 are all bent along the same direction.

The two side elastic pieces connected with the lower elastic piece extend along the same direction, and the elastic deformation portions 2427 of the two side elastic pieces are located on the same side of the first connection end 2425 and the second connection end 2426, which can be said that the bending directions of the elastic deformation portions 2427 of the two side elastic pieces are consistent. For example, in a specific example of the present application, the planar structures 242a forming the first side elastic piece 2421 and the second side elastic piece 2422 of the first suspension component 2401 are disposed on the same side of the upright structure 242b, that is, the first side elastic piece 2421 and the second side elastic piece 2422 are bent along the same direction; the planar structures 242a forming the third side spring 2423 and the fourth side spring 2424 of the second suspension assembly 2402 are disposed on the same side of the upright structure 242b, that is, the third side spring 2423 and the fourth side spring 2424 are bent along the same direction.

It can be appreciated that, in the present application, the planar structures 242a of the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424 can be disposed on the same side of the vertical structure 242b, that is, the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424 are all bent along the same direction.

In the application of the device, the design difficulty of the bending jig can be effectively improved through the structural design of bending along the same direction, so that the side suspension part 242 or at least two side elastic sheets or lower suspension components are easier to demould, the yield is improved, and the cost is reduced. This is because, in order to ensure that the elastic deformation portion 2427 can be bent within 90 ° ± 3 °, the jig design must be bent by 100 °, and the elastic deformation portion 2427 can be controlled to be around 90 ° after springback; if the bending directions of the elastic deformation portions 2427 are not uniform, the demolding cannot be performed due to different bending directions of the jig, so that the yield is reduced and the cost is increased.

In a specific example of the present application, the first side elastic piece 2421 and the second side elastic piece 2422 extend along the Y-axis direction, the upright structure 242b of the first side elastic piece 2421 is located at the left side of the planar structure 242a, and the bending portion 2428 of the first side elastic piece 2421 is located at the left side of the planar structure 242 a; the standing structure 242b of the second side spring 2422 is located at the left side of the planar structure 242a, the bending portion 2428 of the second side spring 2422 is located at the left side of the planar structure 242a, and the standing structure 242b of the first side spring 2421 and the standing structure 242b of the second side spring 2422 are respectively bent from the left side of the planar structure 242a along the horizontal direction toward the height direction. That is, the elastic deformation portion 2427 of the first side spring 2421 is located at the left side of the first connection end 2425 and the second connection end 2426 of the first side spring 2421, the elastic deformation portion 2427 of the second side spring 2422 is located at the left side of the first connection end 2425 and the second connection end 2426 of the second side spring 2422, and the elastic deformation portion 2427 of the first side spring 2421 and the elastic deformation portion 2427 of the second side spring 2422 are bent from the left side in the horizontal direction toward the height direction. Of course, the elastically deforming portion 2427 of the first side elastic piece 2421 and the elastically deforming portion 2427 of the second side elastic piece 2422 may be bent from the right side in the horizontal direction toward the height direction, which is not limited in this application.

Similarly, the third side elastic piece 2423 and the fourth side elastic piece 2424 extend along the Y-axis direction, the upright structure 242b of the third side elastic piece 2423 is located on the left side of the planar structure 242a, and the bending portion 2428 of the third side elastic piece 2423 is located on the left side of the planar structure 242 a; the standing structure 242b of the fourth side spring 2424 is located at the left side of the planar structure 242a, the bending portion 2428 of the fourth side spring 2424 is located at the left side of the planar structure 242a, and the standing structure 242b of the third side spring 2423 and the standing structure 242b of the fourth side spring 2424 are bent from the left side of the planar structure 242a in the horizontal direction toward the height direction. That is, the elastic deformation portion 2427 of the third side spring 2423 is located at the left side of the first connection end 2425 and the second connection end 2426 of the third side spring 2423, the elastic deformation portion 2427 of the fourth side spring 2424 is located at the left side of the first connection end 2425 and the second connection end 2426 of the fourth side spring 2424, and the elastic deformation portion 2427 of the third side spring 2423 and the elastic deformation portion 2427 of the fourth side spring 2424 are bent from the left side in the horizontal direction toward the height direction. Of course, the elastic deformation portion 2427 of the third side elastic piece 2423 and the elastic deformation portion 2427 of the fourth side elastic piece 2424 may be bent from the right side in the horizontal direction toward the height direction, which is not limited in this application, as shown in fig. 7, 8A and 10, the plane of the elastic deformation portion 2427 of the first side elastic piece 2421 and the plane of the elastic deformation portion 2427 of the second side elastic piece 2422 are parallel to each other, and the plane of the elastic deformation portion 2427 of the third side elastic piece 2423 and the plane of the elastic deformation portion 2427 of the fourth side elastic piece 2424 are parallel to each other, and the elastic deformation portions 2427 of the four side elastic pieces are disposed on one side of the first magnet 251 and the other side opposite to the one side.

The elastic deformation portion 2427 of the first side elastic piece 2421 is located on the side where the first magnet 251 is located, for example, the first side 201, where the plane where the elastic deformation portion 2427 of the first side elastic piece 2421 is located is parallel to the length direction of the first magnet 251; the elastic deformation portion 2427 of the second side elastic piece 2422 is located at the other side opposite to the side where the first magnet 251 is located, for example, the third side 203 opposite to the first side 201, and the plane where the elastic deformation portion 2427 of the second side elastic piece 2422 is located and the plane where the elastic deformation portion 2427 of the first side elastic piece 2421 is located are parallel to each other; the first lower spring 24152 is located on the bottom surface of the anti-shake frame 23 and near the fourth side 204.

Further, the elastic deformation portion 2427 of the third side elastic piece 2423 is located on the side where the first magnet 251 is located, for example, the first side 201, and the plane on which the elastic deformation portion 2427 of the third side elastic piece 2423 is located is parallel to the length direction of the first magnet 251; the elastic deformation portion 2427 of the fourth side elastic piece 2424 is located on a side opposite to the side on which the first magnet 251 is located, for example, the third side 203 opposite to the first side 201, and a plane on which the elastic deformation portion 2427 of the fourth side elastic piece 2424 is located and a plane on which the elastic deformation portion 2427 of the third side elastic piece 2423 is located are parallel to each other; the second lower spring 24151 is located at the bottom surface of the anti-shake frame 23 and is close to the second side 202.

That is, the first side elastic piece 2421 and the third side elastic piece 2423 are disposed on the same side of the first magnet 251, the second side elastic piece 2422 and the fourth side elastic piece 2424 are disposed on opposite sides of the first magnet 251, the plane of the elastic deformation portion 2427 of the first side elastic piece 2421, the plane of the elastic deformation portion 2427 of the second side elastic piece 2422, the plane of the elastic deformation portion 2427 of the third side elastic piece 2423, and the plane of the elastic deformation portion 2427 of the fourth side elastic piece 2424 are parallel to the length direction of the first magnet 251, so as to provide a more symmetrical restoring force for the anti-shake frame 23.

It should be noted that, in the present application, the second side elastic piece 2422 and the fourth side elastic piece 2424 disposed opposite to the first magnet 251 can be used to realize the circuit conduction of the driving device 20, so as to improve the space utilization of the driving device 20. Of course, the circuit of the driving device 20 may be conducted by the first side spring 2421, the second side spring 2422, the third side spring 2423 and the fourth side spring 2424, which is not limited in this application.

As shown in fig. 4, the frame body 231 further includes first, second, third and fourth shrinkage openings 2311, 2312, 2313 and 2314 disposed at four corners thereof, and the first, second, third and fourth shrinkage openings 2311, 2312, 2313 and 2314 may be formed to be recessed inward from the first and third sides 201 and 203 or recessed inward from the second and fourth sides 202 and 204. The first shrinkage 2311, the second shrinkage 2312, the third shrinkage 2313 and the fourth shrinkage 2314 can provide a placement space for the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424, i.e. the concave direction of the shrinkage is the same as the extending direction of the first side elastic piece 2421, the second side elastic piece 2422, the third side elastic piece 2423 and the fourth side elastic piece 2424.

Further, the elastic deformation portion 2427 of the first side elastic piece 2421, the elastic deformation portion 2427 of the second side elastic piece 2422, the elastic deformation portion 2427 of the third side elastic piece 2423, and the elastic deformation portion 2427 of the fourth side elastic piece 2424 are disposed in the first shrinkage opening 2311, the second shrinkage opening 2312, the third shrinkage opening 2313, and the fourth shrinkage opening 2314 of the frame body 231, so as to avoid the four elastic deformation portions 2427 of the side elastic pieces from being damaged due to touching the anti-shake frame 23 during deformation. That is, each side spring has only two fixed ends, and the end point of the elastic deformation portion 2427 of each side spring is suspended and does not contact with other structures.

In summary, the object side of the focusing carrier 22 is provided with the first elastic piece 2414 extending along the horizontal direction, and the image side of the focusing carrier 22 is provided with the second elastic piece 2415 extending along the horizontal direction and a plurality of side elastic pieces integrally connected with the second elastic piece 2415 and extending along the height direction. The plurality of side elastic pieces are formed by bending upwards the horizontal plane where the second elastic piece 2415 is located along the height direction, and the plane where the plurality of side elastic pieces are located is parallel to the focusing axis of the optical lens 10 installed in the driving device 20, that is, is parallel to the optical axis, so that the elastic deformation direction of the plurality of side elastic pieces is consistent with the radial direction of the optical lens 10, and is used for realizing the anti-shake function; similarly, the first elastic sheet 2414 and the second elastic sheet 2415 are disposed along the radial direction of the optical lens 10, and the elastic deformation direction thereof is consistent with the optical axis direction of the optical lens 10, so as to implement a focusing function.

As shown in fig. 1, 2, 4 and 11, in one embodiment of the present application, the driving device 20 further includes an anti-shake circuit board 29, the anti-shake circuit board 29 is disposed on the base 212, and the anti-shake coil portion 27 is disposed on and electrically connected to the anti-shake circuit board 29 for conducting a circuit between the anti-shake coil portion 27 and the anti-shake circuit board 29.

Further, in one embodiment of the present application, the side suspension 242 further includes an electrical connection portion 2429, and the electrical connection portion 2429 is bent downward from the second connection end 2426 and extends to the anti-shake circuit board 29, so as to realize the circuit conduction between the focusing coil 261 and the anti-shake circuit board 29 through the second elastic sheet 2415 and the side suspension 242.

The focusing coil 261 is disposed on the focusing carrier 22, the side wall of the focusing carrier 22 has at least two winding posts 222, one end of the focusing coil 261 is wound on the focusing carrier 22, and the other end of the focusing coil 261 is wound on the winding posts 222. The focusing coil 261 arranged on the winding post 222 can be contacted with the second elastic sheet 2415, the second elastic sheet 2415 is integrally connected to the first connection end 2425 of the side suspension 242, and the side suspension 242 conducts the current in the anti-shake circuit board 29 to the focusing coil 261 through the integrally connected second connection end 2426 and the electrical connection part 2429.

At least two side spring pieces of the side suspension portion 242 are provided with an electrical connection portion 2429, and the side spring pieces provided with the electrical connection portion 2429 can be arranged on the side opposite to the first magnet 251, so that interference to the arrangement of the first magnet 251 is avoided, and the space utilization rate of the driving device 20 is improved. In a specific example of the present application, the second side elastic piece 2422 and the fourth side elastic piece 2424 disposed opposite to the first magnet 251 are provided with electrical connection portions 2429, that is, the electrical connection portions 2429 of the second side elastic piece 2422 are integrally bent and extended downwards from the second connection ends 2426 of the second side elastic piece 2422, and are electrically connected to the anti-shake circuit board 29; the electrical connection portion 2429 of the fourth side spring 2424 is bent and extended downward integrally from the second connection end 2426 of the fourth side spring 2424, and is electrically connected to the anti-shake circuit board 29.

Since the second elastic sheet 2415 and the plurality of side elastic sheets are closer to the anti-shake circuit board 29, the complexity of the circuit of the driving device 20 can be reduced, and thus the cost can be reduced.

It is understood that the anti-shake circuit board 29 may extend downward to be electrically connected to the chip circuit board 32 of the photosensitive assembly 30, so as to conduct the circuit of the driving device 20. Of course, the anti-shake circuit board 29 may also extend directly to the motherboard of the electronic device (e.g. mobile phone), and be directly electrically connected to the motherboard of the electronic device, so as to realize separate control of the driving device 20 and the photosensitive assembly 30.

In one embodiment of the present application, the driving device 20 further includes a position sensing part (not shown), and the position sensing element may be a hall element, a driving IC, or a TMR. The position sensing section includes a focus position sensing section (not shown) and an anti-shake position sensing section (not shown). When the focusing carrier 22 moves, the relative position between the focusing position sensing part and the second magnet 252 or the third magnet 253 changes, and the position of the focusing carrier 22 can be determined according to the magnetic field strength of the second magnet 252 or the third magnet 253 sensed by the focusing position sensing part, so that the current of the focusing coil 261 can be adjusted to move the focusing carrier 22 to a required position.

The anti-shake position sensing portion is disposed opposite to the first magnet 251, and opposite to the second magnet 252 or the third magnet 253, when the anti-shake frame 23 moves, the relative positions of the anti-shake position sensing portion and the first magnet 251, the second magnet 252 or the third magnet 253 change, and according to the magnetic field strength of the first magnet 251, the second magnet 252 or the third magnet 253 sensed by the anti-shake position sensing portion, the position of the anti-shake frame 23 can be determined, and then the current of the anti-shake coil portion 27 is adjusted so that the anti-shake frame 23 moves to a desired position.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims

1. A driving device, characterized by comprising:

a base;

an anti-shake frame movably connected to the base;

a focus carrier movably connected to the anti-shake frame;

2. The drive device according to claim 1, wherein the drive device includes a first side, a second side, a third side, and a fourth side that are provided in this order around a peripheral side thereof, the first magnet being provided to the first side, the second magnet being provided to the second side, the third magnet being provided to the fourth side, and the third side being provided with no magnet.

3. The drive device according to claim 2, wherein the focusing coil includes a first focusing coil portion located on the first side, a second focusing coil portion located on the second side, a third focusing coil portion located on the third side, and a fourth focusing coil portion located on the fourth side, the first focusing coil portion being within a magnetic field range of the first magnet, the second focusing coil portion being within a magnetic field range of the second magnet, the fourth focusing coil portion being within a magnetic field range of the third magnet.

4. A driving device according to claim 3, wherein the first focusing coil part includes one straight edge section and at least two oblique edge sections connected to the straight edge section, and a distance from the straight edge section to the first magnet is smaller than a distance from the two oblique edge sections to the first magnet.

5. The drive of claim 4, wherein the length of the straight edge section is less than the length of the hypotenuse section to reduce an effective reaction between the first magnet and the first focusing coil portion.

6. The driving device according to claim 5, wherein the focusing coil is of a symmetrical structure, the second focusing coil portion is arranged symmetrically to the fourth focusing coil portion, and the first focusing coil portion is arranged symmetrically to the third focusing coil portion.

7. The drive device according to claim 6, wherein the anti-shake coil portion includes a first anti-shake coil fixed to the base and opposed to the first magnet, a second anti-shake coil fixed to the base and opposed to the second magnet, and a third anti-shake coil fixed to the base and opposed to the third magnet.

8. The driving device according to claim 7, wherein the driving device includes a magnetically conductive member including a first magnetically conductive member, a second magnetically conductive member, and a third magnetically conductive member, the first magnetically conductive member being disposed on a side of the first magnet away from the first anti-shake coil, the second magnetically conductive member being disposed on a side of the second magnet away from the second focusing coil portion, the third magnetically conductive member being disposed on a side of the third magnet away from the fourth focusing coil portion.

9. The driving device according to claim 8, wherein the driving device includes a suspension portion including a first suspension portion and a side suspension portion, the first suspension portion connecting between the focus carrier and the anti-shake frame, the focus carrier being suspended within the anti-shake frame by the first suspension portion; the side suspension part is connected between the anti-shake frame and the base, and the anti-shake frame is suspended in the base by the side suspension part.

10. A camera module, comprising:

a photosensitive assembly;

the drive device according to any one of claims 1 to 9, wherein the drive device is adapted to drive the optical lens to move.