CN115696046A

CN115696046A - Voice coil motor, camera module and electronic equipment

Info

Publication number: CN115696046A
Application number: CN202211020779.4A
Authority: CN
Inventors: 王志; 杨松; 林墨洲
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-02-03

Abstract

The application discloses voice coil motor, camera module and electronic equipment. The voice coil motor comprises a shell and an anti-shake structure. The anti-shake structure comprises a carrier and a driving assembly. The lens comprises a lens body, a carrier and a driving assembly, wherein the lens body is arranged on the carrier, the driving assembly comprises a first magnet and two first coils which are correspondingly arranged, one of the first magnet and the first coil is arranged on the carrier, the other one of the first magnet and the first coil is arranged on a shell, the first magnet comprises a first magnetic area and a second magnetic area, the two first coils can be independently controlled and respectively act on the first magnetic area and the second magnetic area in the corresponding first magnet to exert acting force on the corresponding first magnet, and the acting force is used for enabling the deflection of the carrier around the optical axis of the lens body to be within a preset range. In the voice coil motor, camera module and electronic equipment of this application, even if the in-process of skew on the plane of the perpendicular optical axis of compensation, the carrier has appeared in this plane around the deflection of the optical axis of camera lens, and this carrier also can be pull back to this effort to guarantee the anti-shake effect, and then guarantee the imaging quality.

Description

Voice coil motor, camera module and electronic equipment

Technical Field

The application relates to the technical field of imaging, in particular to voice coil motor, camera module and electronic equipment.

Background

As a common part of electronic devices such as mobile phones, people have increasingly stringent requirements for their shooting functions, for example, the camera module is required to have an anti-shake function so as to capture high-quality images. In order to achieve the anti-shake function, the camera module usually employs a ball motor to compensate the lens offset on the plane perpendicular to the optical axis for anti-shake, however, the ball motor may also rotate around the optical axis of the lens, which is not allowed. How to compensate the rotation becomes an urgent problem to be solved in the anti-shake field.

Disclosure of Invention

The embodiment of the application provides a voice coil motor, a camera module and an electronic device.

The voice coil motor of the embodiment of the application comprises a shell and an anti-shaking structure. The anti-shake structure is mounted on the shell and comprises a carrier and a driving assembly. The carrier is used for mounting a lens, the driving assembly comprises a first magnet and two first coils, the first magnet is arranged corresponding to the two first coils, one of the first magnet and the first coils is mounted on the carrier, the other one of the first magnet and the first coils is mounted on the shell, the first magnet comprises a first magnetic area and a second magnetic area, the two first coils can be independently controlled and respectively act on the first magnetic area and the second magnetic area in the corresponding first magnet to exert acting force on the corresponding first magnet, and the acting force is used for enabling the deflection of the carrier around the optical axis of the lens to be within a preset range.

In some embodiments, the voice coil motor further comprises a circuit board mounted to the housing; the driving assembly further comprises two driving chips, the two driving chips and the two first coils correspond to each other respectively and are electrically connected with the circuit board, a position detection unit is arranged in each driving chip and is used for controlling the electrifying current of the corresponding first coil, and the position detection unit is used for detecting the distance between the two first coils and the corresponding first magnets; in the case where the difference in distance between the two first coils and the corresponding first magnets exceeds a preset range, at least one of the two drive chips controls the energization current in the corresponding first coil so that the deflection of the carrier around the optical axis of the lens is within a predetermined range.

In some embodiments, the voice coil motor further comprises a circuit board mounted to the housing; the driving assembly further comprises a driving chip and two position detection units. The driving chip and the two first coils are electrically connected with the circuit board and are used for respectively controlling the two first coils. One of the two position detection units is arranged in the driving chip and corresponds to one of the two first coils, and the other position detection unit is arranged on the circuit board and corresponds to the other one of the two first coils. The position detection unit is used for detecting the distance between the two first coils and the corresponding first magnets. In the case where a difference in distance between the two first coils and the corresponding first magnets exceeds a preset range, the drive chip controls an energization current of at least one of the two first coils so that a deflection of the carrier around an optical axis of the lens is within a predetermined range.

In some embodiments, the number of drive assemblies comprises two, two of the drive assemblies being located on adjacent sides of the carrier.

In some embodiments, the first magnet further comprises a non-magnetic region connecting the first magnetic region and the second magnetic region, and the magnetic poles of the first magnetic region and the second magnetic region are oppositely arranged in the same drive assembly; the first magnet is of an integrated structure.

In some embodiments, the first magnet further comprises a non-magnetic region connecting the first magnetic region and the second magnetic region, and the magnetic poles of the first magnetic region and the second magnetic region are oppositely arranged in the same drive assembly; the first magnet is formed by combining a plurality of split structures.

In some embodiments, the first magnet has a contoured configuration with opposing ends having a thickness greater than a thickness of a middle portion between the opposing ends.

In some embodiments, the first magnet of the shaped structure has the same thickness at opposite ends thereof, and the middle portion has the same thickness.

In some embodiments, the housing comprises a base and a shell, the shell is mounted on the base in a covering manner; the first magnets are arranged on the carrier, and the two first coils are arranged on the base; the side wall of the carrier, on which the first magnet is installed, comprises a plastic body and a magnetic metal sheet embedded in the plastic body, and the first magnet is adsorbed on the magnetic metal sheet.

In some embodiments, the driving assembly further comprises a restoring member disposed at a bottom of the first magnet of the special-shaped structure and providing a restoring force when the first coil stops being energized, the restoring force being used to bring the carrier back to the center position.

In some embodiments, the carrier is a unitary structure and includes a first sub-portion and a second sub-portion connected to each other, the first sub-portion being configured to receive a lens of the lens, and the second sub-portion being configured to mount the first magnet or the first coil.

The camera module of the embodiment of the present application includes a lens and the voice coil motor of any one of the above embodiments. The lens is arranged on the carrier of the anti-shake structure.

The electronic equipment of this application embodiment includes the body and the camera module of above-mentioned embodiment, camera module install in the body.

In the voice coil motor, camera module and electronic equipment of this application, two first coils in the anti-shake structure can be controlled alone to respectively with first magnetic area and the effect of second magnetic area in the first magnet that corresponds, with the effort is applyed to the first magnet that corresponds, and this effort can make the deflection of carrier around the optical axis of camera lens in the predetermined range. Therefore, even if the carrier deflects around the optical axis of the lens in the plane in the process of compensating the offset on the plane vertical to the optical axis, the acting force can pull back the carrier reversely, so that the deflection of the carrier around the optical axis of the lens is in a preset range, the anti-shake effect is ensured, and the imaging quality is further ensured.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic perspective assembly view of a voice coil motor according to some embodiments of the present application;

FIG. 2 is an exploded perspective view of a voice coil motor according to certain embodiments of the present application;

FIG. 3 is a schematic cross-sectional view of the voice coil motor shown in FIG. 1 taken along line III-III;

fig. 4 is an exploded perspective view of an anti-shake structure in a voice coil motor according to some embodiments of the present disclosure;

fig. 5 is an exploded perspective view of a driving assembly of an anti-shake structure in a voice coil motor according to some embodiments of the present disclosure;

FIG. 6 is a schematic plan view of the drive assembly shown in FIG. 5;

FIG. 7 is a schematic plan view of a voice coil motor according to some embodiments of the present application;

fig. 8 is a schematic perspective view illustrating a housing of a voice coil motor and a driving assembly of an anti-shake structure according to some embodiments of the present disclosure;

fig. 9 is a schematic perspective view of a driving assembly in an anti-shake structure of a voice coil motor according to some embodiments of the present application;

FIG. 10 is a schematic plan view of the drive assembly shown in FIG. 9;

fig. 11 is a schematic view illustrating an anti-vibration structure of a voice coil motor according to some embodiments of the present invention;

FIG. 12 is a schematic perspective assembly view of a camera module according to some embodiments of the present application;

FIG. 13 is a schematic diagram of an electronic device according to some embodiments of the present application.

Detailed Description

Embodiments of the present application will be further described with reference to the drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout. In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary and are only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As a common part of electronic devices such as mobile phones, the camera module has increasingly stringent requirements for its shooting function, for example, the camera module is required to have an anti-shake function so as to capture high-quality images. In order to achieve the anti-shake function, the camera module usually employs a ball motor to compensate the lens offset on the plane perpendicular to the optical axis for anti-shake, however, the ball motor may also rotate around the optical axis of the lens, which is not allowed. How to compensate the rotation becomes a problem which needs to be solved urgently in the anti-shake field. In order to solve this problem, the present embodiment provides a voice coil motor 10 (shown in fig. 1), a camera module 100 (shown in fig. 12), and an electronic apparatus 1000 (shown in fig. 13).

Referring to fig. 1 and 2, a voice coil motor 10 according to an embodiment of the present invention includes a housing 11 and an anti-shake structure 15. The anti-shake structure 15 is mounted on the housing 11 and includes a carrier 151 and a driving assembly 153. The carrier 151 is used for mounting the lens 20, the driving assembly 153 includes a first magnet 1531 and two first coils 1533, the first magnet 1531 is disposed corresponding to the two first coils 1533, one of the first magnet 1531 and the first coils 1533 is mounted on the carrier 151, and the other is mounted on the housing 11. Referring to fig. 5 and 8, the first magnet 1531 includes a first magnetic region 15311 and a second magnetic region 15313, and the two first coils 1533 are individually controllable and respectively act on the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531 to apply a force to the corresponding first magnet 1531, the force being used to make the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range.

In the voice coil motor 10 of the present application, the two first coils 1533 of the anti-shake structure 15 can be individually controlled and respectively act on the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531 to apply a force to the corresponding first magnet 1531, and the force can make the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range. Thus, even if the carrier 151 experiences a deflection about the optical axis MM1 of the lens 20 in a plane in which it is displaced during compensation for a deviation in the plane perpendicular to the optical axis MM1, the carrier 151 can be pulled back in the opposite direction by the force, so that the deflection of the carrier 151 about the optical axis MM1 of the lens 20 is within a predetermined range, thereby ensuring the anti-shake effect and thus the imaging quality. The XY plane is a plane perpendicular to the optical axis MM1 of the lens 20, the direction of the optical axis MM1 is generally the height/thickness direction of the voice coil motor 10, the X axis direction is the length direction of the voice coil motor 10, and the Y axis direction is the width direction of the voice coil motor 10; alternatively, the X-axis direction is the width direction of the voice coil motor 10, and the Y-axis direction is the length direction of the voice coil motor 10.

The voice coil motor 10 will be further described with reference to the drawings.

Referring to fig. 2, the vcm 10 may further include a focusing structure 13, and the focusing structure 13 and the anti-shake structure 15 are disposed on the housing 11.

Referring to fig. 1 and 2, in some embodiments, the housing 11 includes a base 111 and a casing 113, and the casing 113 is disposed on the base 111. The base 111 includes a bottom wall 1111 and a side wall 1113 extending from an edge (peripheral edge) of the bottom wall 1111 in a direction toward the housing 113. The housing 113 includes a top plate 1131 matching the shape of the base 111 and side plates 1133 extending from the edge (periphery) of the top plate 1131 toward the base 111. The housing 113 is connected to the base 111, and the housing 113 and the base 111 together form a receiving space 115. The focusing structure 13 and the anti-shake structure 15 are both disposed on the housing 11, and the carrier 151 of the anti-shake structure 15 is accommodated in the focusing structure 13.

In some embodiments, the housing 113 can be non-removably coupled to the base 111 by welding and/or gluing, among other means. In other embodiments, the housing 113 can be detachably connected to the base 111 by a screw connection, a snap connection, a hinge connection, and the like, without limitation. In the present embodiment, the housing 113 and the base 111 are connected by a snap-fit. For example, the side plate 1133 of the housing 113 is provided with a coupling member (not shown), the side wall 1113 of the base 111 is provided with a connecting member (not shown), and the coupling member is engaged with the connecting member so that the housing 113 can be mounted on the base 111 in a covering manner. It is noted that in some embodiments, the coupling member can be multiple, and multiple coupling members can be disposed on one or more side panels 1133 of the housing 113. Correspondingly, there may be a plurality of connectors, and the plurality of connectors are disposed on one or more sidewalls 1113 of the base 111. Wherein, the combination piece and the connecting piece can be one-to-one or many-to-one. For example, one coupler corresponds to one connector; or a plurality of connectors correspond to one connecting piece; or a plurality of connectors corresponding to a plurality of connectors.

Referring to fig. 2, in some embodiments, the housing 11 is provided with a light hole 117 through which external light can pass, that is, the bottom wall 1111 of the base 111 and the top plate 1131 of the casing 113 are both provided with the light hole 117. The light-passing hole 117 may have any shape such as a square, a circle, or a triangle. In some embodiments, the shape of the case 11 may be a square, a rectangular parallelepiped, a triangular prism, a hexagonal prism, or the like, but is not limited thereto, that is, the shapes of the case 113 and the base 111 may be a square, a rectangular parallelepiped, a triangular prism, a hexagonal prism, or the like.

With reference to fig. 2, in some embodiments, the focusing structure 13 includes a carrier 131 and a driving device 133, and a part of the focusing structure 13 is disposed in the accommodating space 115 of the housing 11, specifically, one of the carrier 131 and the driving device 133 is disposed in the housing 11, and the other is disposed on the housing 11. The driving device 133 is used to drive the carrier 131 to move along the optical axis MM1 of the lens 20 for focusing.

Still referring to fig. 2, in some embodiments, the carrier 131 includes a bottom wall 1311 and a side wall 1313 extending from the bottom wall 1311 toward the housing 113, and the bottom wall 1311 of the carrier 131 and the side wall 1313 of the carrier 131 together form a cavity 1315. The outer side of the sidewall 1313 of the carrier 131 is provided with a fitting member 132, and correspondingly, the inner side of the sidewall 1113 of the base 111 is provided with a guide 112, and the guide 112 and the fitting member 132 cooperate with each other to guide the carrier 131 to move along the optical axis MM1 of the lens 20. In the embodiment of the present application, the number of the guiding elements 112 and the two matching elements 132 includes two, and the two guiding elements 112 and the two matching elements 132 form two guiding sets, and the two guiding sets can limit the deflection and/or the turning of the carrier 131 during the movement focusing along the optical axis MM1, where the deflection refers to the rotation of the carrier 131 around the optical axis MM1 in the XY plane, and the turning refers to the rotation of the carrier 131 around the X axis or the Y axis of the XY plane. It should be noted that in some embodiments, the guide 112 may be a guide rail, and correspondingly, the engagement element 132 may be a guide ball. That is, the outer side of the sidewall 1313 of the carrier 131 is provided with a guiding ball, and the inner side of the sidewall 1113 of the base 111 is provided with a guiding rail, which cooperates with the guiding ball, so that the rotation (the aforementioned deflection and/or turning) of the carrier 131 is limited during the moving and focusing process along the optical axis MM1, thereby improving the imaging quality. Alternatively, the carrier 131 may have guide rails on the outer side of the sidewall 1313 and the base 111 may have guide balls on the inner side of the sidewall 1113. In some embodiments, the guide balls may be one or more. In this application embodiment, the direction ball in every guide rail can be a plurality of, and a plurality of direction balls make the contact surface of guide group bigger, and the fulcrum is more firm, compares in every guide rail only to cooperate a direction ball, and the guiding effect is more stable, and the degree greatly reduced that rocks takes place for the in-process that carrier 131 removed along optical axis MM1 of camera lens 20, and then avoids causing the dead problem of removal card because of great rocking, guarantees the normal realization of the function of focusing.

In other embodiments, the guide 112 may be a guide bar and, correspondingly, the mating member 132 may be a guide rail. That is, the outer side of the sidewall 1313 of the carrier 131 is provided with a guide rail, and the inner side of the sidewall 1113 of the base 111 is provided with a guide rod, and the guide rail is matched with the guide rod, so that the rotation (the aforementioned deflection and/or turning) of the carrier 131 is limited during the moving and focusing process along the optical axis MM1, thereby improving the imaging quality. Alternatively, the guide rods may be disposed outside the sidewall 1313 of the carrier 131, and the guide rails may be disposed inside the sidewall 1113 of the base 111.

Referring to fig. 2, in some embodiments, the driving device 133 includes a second magnet 1331 and a second coil 1333 disposed opposite to each other. One of the second magnet 1331 and the second coil 1333 is disposed on the sidewall 1113 of the base 111, and the other is disposed on the sidewall 1313 of the carrier 131, and the second coil 1333 is energized to generate an actuating force with the second magnet 1331, wherein the actuating force is used to drive the carrier 131 to move along the optical axis MM1 (shown in fig. 1) for focusing.

In some embodiments, the second magnet 1331 may be a permanent magnet (having a magnetic field of its own), such as a neodymium-iron-boron magnet, a ferrite magnet, or an alnico magnet, etc., without limitation. When the second coil 1333 is energized, the first coil 1333 can generate a magnetic field, so that an actuating force can be generated between the second magnet 1331 and the second coil 1333, and the actuating force drives the carrier 131 to move along the optical axis MM1, so as to realize a focusing function.

In some embodiments, the second magnet 1331 may be embedded, adhered, fastened, etc. on one of the side wall 1113 of the base 111 or the side wall 1313 of the carrier 131, the second coil 1333 may be directly embedded, adhered, fastened, screwed, welded, etc. on the other of the side wall 1113 of the base 111 or the side wall 1313 of the carrier 131, and then electrically connected to the circuit board 118 through a conductive member (not shown), the second coil 1333 may also be formed on the circuit board 118 and electrically connected to the circuit board 118, and the circuit board 118 may be embedded, adhered, fastened, screwed, welded, etc. on the other of the side wall 1113 of the base 111 or the side wall 1313 of the carrier 131. In addition, the second magnet 1331 and the second coil 1333 are disposed at an interval corresponding to each other, so as to avoid the problem that the second magnet 1331 and/or the second coil 1333 are damaged due to collision and friction when the carrier 131 moves along the optical axis MM1, thereby affecting the normal operation of the voice coil motor 10.

In some embodiments, the number of the second magnets 1331 may be one, and the number of the second coils 1333 may also be one, and the second magnet 1331 corresponds to the second coil 1333. In other embodiments, there may be a plurality of the second magnets 1331 and a plurality of the second coils 1333, and in this case, there may be one or more pairs of the second magnets 1331 and the second coils 1333. For example, a second magnet 1331 corresponds to a second coil 1333; or a plurality of second magnets 1331 corresponding to one second coil 1333.

In some embodiments, the magnitude and direction of the magnetic field generated by the second coil 1333 may be adjusted according to the magnitude and direction of the current flowing through the second coil 1333. The second magnet 1331 cooperates with the second coil 1333 to generate an actuating force, and the vcm 10 can adjust the distance and direction of the carrier 131 moving along the optical axis MM1 by adjusting the magnitude and direction of the current flowing through the second coil 1333. Wherein the direction of the optical axis MM1 includes a forward direction of the optical axis MM1 and a reverse direction of the optical axis MM 1. The positive direction of the optical axis MM1 is the direction from the image side to the object side of the lens 20. The reverse direction of the optical axis MM1 is the direction from the object side to the image side of the lens 20. The vcm 10 may change the direction of the current flowing into the second coil 1333, so that the actuating force generated between the second magnet 1331 and the second coil 1333 drives the carrier 131 to move along the forward direction of the optical axis MM1 or along the reverse direction of the optical axis MM 1; the vcm 10 can also control the distance of the driving carrier 131 moving in the forward direction of the optical axis MM1 or in the reverse direction of the optical axis MM1 by changing the magnitude of the current flowing into the second coil 1333.

With continued reference to fig. 2, in some embodiments, the anti-shake structure 15 includes a carrier 151 and a driving element 153. The driving assembly 153 is used for driving the carrier 151 to move in the XY plane or rotate around the optical axis MM1 in the XY plane, so as to realize the anti-shake function.

Specifically, in the case of operation of the camera module 100, for example, when the focusing mechanism 13 starts to operate (representing that the camera module 100 is operating), the driving component 153 can drive the carrier 151 to move in the XY plane and/or rotate around the optical axis MM1 of the lens 20 in the XY plane (the aforementioned deflection), so as to counteract the shake (offset) of the lens 20 in the X-axis direction or the Y-axis direction of the XY plane and the shake around the optical axis MM1 in the XY plane during focusing, thereby implementing the anti-shake function. Since the driving device 133 can drive the carrier 131 of the focusing structure 13 to move along the optical axis MM1 of the lens 20, so as to realize the focusing function; the driving assembly 153 can drive the carrier 151 to move in the XY plane and/or rotate around the optical axis MM1 in the XY plane, so as to realize the anti-shake function, and further, the camera module 100 (shown in fig. 12) can realize the focusing function and the anti-shake function at the same time, thereby improving the shooting effect.

Referring to fig. 2, in some embodiments, the carrier 151 is disposed in the cavity 1315, and the carrier 151 is supported at the bottom of the cavity 1315 of the carrier 131 by a plurality of guides 14, and can move in the XY plane and/or rotate around the optical axis MM1 in the XY plane, so as to counteract the shake of the lens 20 in the X-axis direction or the Y-axis direction of the XY plane during the focusing process, and counteract the deflection in the XY plane, so as to achieve the anti-shake function.

Referring to fig. 2 and 3, in one embodiment, a plurality of guide blocks 1318 protrude from the bottom of the cavity 1315 in a direction toward the carrier 151, a plurality of guide grooves 1519 are recessed in the bottom 1517 of the carrier 151, the plurality of guide grooves 1519 correspond to the plurality of guide blocks 1318, each guide block 1318 extends into the corresponding guide groove 1519 and forms a guide cavity 140, a guide member 14 is loaded in each guide cavity 140, the guide member 14 abuts against the bottom surface of the guide groove 1519 and can move in the guide cavity 140, and the side walls of the guide cavity 140 are used for limiting the movement stroke of the corresponding guide member 14.

Referring to fig. 2 and 3, in particular, the carrier 151 includes a bottom 1517. The bottom wall 1311 of the carrier 131 is extended with a plurality of guide blocks 1318 protruding in a direction toward the carrier 151, and the bottom 1517 of the carrier 151 is recessed in a direction away from the carrier 131 to form a plurality of guide grooves 1519. Wherein the plurality of guide grooves 1519 are provided corresponding to the guide blocks 1318. Each guide block 1318 extends into the corresponding guide groove 1519 to form a guide cavity 140, a guide member 14 is disposed in each guide cavity 140, and the guide members 14 can respectively abut against the bottom of the guide cavity 140 and the bottom surface of the guide groove 1519 and can move freely in the guide cavity 140, so that the carrier 151 can be carried on the bottom of the cavity 1315 of the carrier 131, and the carrier 151 can move (including X-direction movement and Y-direction movement) in the XY plane on the bottom wall 1311 of the carrier 131 and/or rotate around the optical axis MM1 in the XY plane, thereby offsetting shake of the lens 20 in the XY plane in the X-axis direction or the Y-axis direction during focusing, and deflection around the optical axis MM1, so as to achieve an anti-shake function.

Referring to fig. 3, in some embodiments, each guide block 1318 can extend into the corresponding guide groove 1519, and the side wall of the guide block 1318 abuts against the side wall of the guide groove 1519 to limit the movement stroke of the carrier 151, so as to avoid the problem that the movement stroke of the carrier 151 is too large, which may cause the anti-shake function to fail, and even the carrier 151 is derailed (separated from the carrier 131).

Referring to fig. 2 and 3, in some embodiments, the guiding element 14 disposed in the guiding cavity 140 may be an anti-shake ball capable of rolling in the guiding cavity 140 to enable the carrier 151 to move in the XY plane (including the X direction movement and the Y direction movement, the same applies below) and/or rotate around the optical axis MM1 in the XY plane. It should be noted that, in some embodiments, the depth of the guide cavity 140 in the direction along the optical axis MM1 and the depth of the guide groove 1519 in the direction along the optical axis MM1 are both smaller than the diameter of the guide 14, so as to ensure that the guide 14 can contact the bottom wall of the guide cavity 140 and the bottom wall of the guide groove 1519. In the embodiment of the present application, the number of the guide blocks 1318 and the guide grooves 1519 is four, and correspondingly, the number of the guide members 14 in the guide blocks 1318 is also four, and the guide blocks 1318 and the guide grooves 1519 are respectively disposed at four corners of the carrier 131 and the carrier 151, so as to ensure that the carrier 151 can stably move. In other embodiments, the number and location of the guide blocks 1318 and guide slots 1519 may be set according to particular needs. For example, in the case where the cross-sectional shapes of the carrier 131 and the carrier 151 along the XY plane are hexagonal, the guide blocks 1318 and the guide grooves 1519 may be six in each, that is, six opposing guide blocks 1318 and guide grooves 1519 are provided at six corners of the carrier 131 and the carrier 151, respectively. It is understood that the guiding blocks 1318 and the guiding grooves 1519 may be disposed at non-corners, such as the

sidewalls

1313 and 1515 of the

carriers

131 and 151, to ensure that the movement of the carriers 151 is more stable.

In another embodiment, a plurality of guide blocks protrude from the bottom 1517 of the carrier 151 in the direction of the carrier 131, and a plurality of guide grooves are formed in the bottom of the cavity 1315, in this case, similarly, the plurality of guide grooves correspond to the plurality of guide blocks, each guide block protrudes into the corresponding guide groove, and a guide cavity is formed, each guide cavity is loaded with a guide member, the guide member abuts against the bottom surface of the guide groove and can move in the guide cavity, and the side wall of the guide cavity is used for limiting the movement stroke of the corresponding guide member.

Referring to fig. 2, in some embodiments, carrier 151 may be a one-piece injection molded part. Specifically, the carrier 151 includes first and

second subsections

1511, 1513 that meet. The first sub-portion 1511 is used for accommodating the lens 22, and thus the first sub-portion 1511 and the lens 22 form the lens 20. The second sub-portion 1513 is used for mounting one of the first magnet 1531 and the first coil 1533 of the driving component 153. The voice coil motor 100 accommodates the lens 22 and mounts one of the first magnet 1531 and the first coil 1533 by the carrier 151 having an integral structure, and can avoid a problem that the number of components inside the camera module 100 (shown in fig. 12) and the electronic apparatus 1000 (shown in fig. 13) is excessive due to the provision of a plurality of mounting members, and realize downsizing of the voice coil motor 10 (shown in fig. 1), the camera module 100 (shown in fig. 12), and the electronic apparatus 1000 (shown in fig. 13). In addition, the carrier 151 has an integrated structure, which can reduce the number of assembly processes of the voice coil motor 10 and improve the production efficiency. The lens 22 and the carrier 151 may also be integrally formed, for example, the lens 22 and the carrier 151 are integrally formed by a two-color injection molding process, wherein the material of the lens 22 is different from the material of the carrier 151, the lens 22 is a white material, and the carrier 151 is a black material, specifically, in one example, the lens 22 may be made of a resin with a high light transmittance, and the carrier 151 is made of a resin with a low light transmittance so as to prevent light leakage, or the carrier 151 is made of a resin without a high light transmittance, and then is coated with a black paint to achieve the light leakage prevention effect. The lens 22 and the carrier 151 are integrally formed, so that the assembly process can be simplified, and the production efficiency can be improved.

Current vcm motors typically include a structural member for mounting the lens and a structural member for mounting the driver assembly, which are then coupled together. Carrier 151 formula injection moulding spare as an organic whole in this application, carrier 151 after the shaping is more stable than the structure after two structures combine, avoids taking place to damage at the in-process of 15 work of anti-shake structure, and influences voice coil motor 10's normal work. In addition, carrier 151 formula injection molding as an organic whole can also strengthen carrier 151's dustproof and waterproof effect, avoids impurity such as external water or dust to get into carrier 151's inside, leads to inside lens 22 of carrier 151 and other structures to receive the pollution, influences the formation of image effect of camera module 100 (shown in fig. 12).

In other embodiments, the carrier 151 may be made of thermoplastic plastics, such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, etc.; the carrier 151 may also be made of thermosetting plastic, such as phenolic resin, urea resin, etc., and the plastic material can reduce the overall weight of the carrier 151, reduce the power consumption of the voice coil motor 10, and reduce the production cost. In the embodiment of the present application, the material of the carrier 151 is thermoplastic, wherein the first sub-portion 1511 and the second sub-portion 1513 may be integrally injection molded by the same type of thermoplastic, or integrally injection molded by different types of thermoplastic, for example, by a two-color molding process. Of course, the carrier 151 may also be made of a metal material, such as an aluminum alloy, and the metal material can enhance the support and stability of the carrier 151, so as to avoid the damage of the carrier 151 from affecting the normal operation of the voice coil motor 10.

Referring to fig. 4, in other embodiments, the carrier 151 may also be a split structure, and similarly, the carrier 151 includes a first sub-portion 1511 and a second sub-portion 1513, and the first sub-portion 1511 is used for accommodating the lens 22, so that the first sub-portion 1511 and the lens 22 form the lens 20. The second sub portion 1513 is for mounting one of the first magnet 1531 and the first coil 1533. At this time, the first sub-portion 1511 is formed, the lens 22 is mounted on the first sub-portion 1511 by screwing and/or dispensing to form the lens 20, and the lens 20 is assembled with the second sub-portion 1513 to form the carrier 151 carrying the lens 22.

Referring to fig. 2, in some embodiments, the number of the driving assemblies 153 includes two, and two driving assemblies 153 are respectively disposed on two adjacent sides of the carrier 151. Specifically, the two driving assemblies 153 are disposed in the X-axis direction and the Y-axis direction of the XY plane, respectively. Each of the driving assemblies 153 includes a first magnet 1531 and two first coils 1533, and the first magnet 1531 is spaced apart from the two first coils 1533. In the present application, only the case where the first magnet 1531 is disposed on the sidewall 1515 of the second sub-portion 1513 of the carrier 151 and the two first coils 1533 are disposed on the sidewall 1113 of the base 111 is described as an example, the case where the two first coils 1533 are disposed on the sidewall 1515 of the second sub-portion 1513 of the carrier 151 and the first magnet 1531 is disposed on the sidewall 1113 of the base 111 can be referred to for implementation. Specifically, the first magnet 1531 of one driving assembly 153 is disposed on the sidewall 1515 of the second sub-portion 1513 in the X-axis direction, and correspondingly, the two first coils 1533 of the driving assembly 153 are disposed on the sidewall 1113 of the base 111 in the X-axis direction. The first magnet 1531 of the other driving element 153 is disposed on the sidewall 1515 of the second sub-portion 1513 in the Y-axis direction, and correspondingly, the two first coils 1533 of the driving element 153 are disposed on the sidewall 1113 of the base 111 in the Y-axis direction. The first coil 1533 is energized to generate a driving force with the first magnet 1531, and the driving force is used to drive the carrier 151 to move in the XY plane (including moving in the X-axis direction and moving in the Y-axis direction) and/or rotate around the optical axis MM1 of the lens 20 in the XY plane, so as to counteract the shake of the lens 20 in the X-axis direction or the Y-axis direction of the XY plane, or shake around the optical axis MM1, so as to achieve the anti-shake function.

In other embodiments, the number of the driving assemblies 153 is one, and the one driving assembly 153 may be disposed on any side of the carrier 151 and on a side opposite to the focusing structure 13.

In one example, the one driving assembly 153 is disposed in an X-axis direction of the XY plane. In this case, the driving assembly 153 also includes a first magnet 1531 and two first coils 1533, and the first magnet 1531 is disposed opposite to and spaced apart from the two first coils 1533. The first magnet 1531 is disposed on the sidewall 1515 of the second sub-portion 1513 in the X-axis direction, and the two first coils 1533 are disposed on the sidewall 1113 of the base 111 in the X-axis direction. The first coil 1533 is energized to generate a driving force with the first magnet 1531, and the driving force is used to drive the carrier 151 to move in the X-axis direction in the XY plane, so as to cancel the shake of the lens 20 in the X-axis direction in the XY plane.

In another example, the one driving assembly 153 is disposed in the Y-axis direction of the XY plane. In this case, the driving assembly 153 also includes a first magnet 1531 and two first coils 1533, and the first magnet 1531 is disposed opposite to and spaced apart from the two first coils 1533. The first magnet 1531 is disposed on the sidewall 1515 of the second sub-portion 1513 in the Y-axis direction, and the two first coils 1533 are disposed on the sidewall 1113 of the base 111 in the Y-axis direction. The first coil 1533 is energized to generate a driving force with the first magnet 1531, and the driving force is used to drive the carrier 151 to move in the Y axis direction in the XY plane, thereby canceling the shake of the lens 20 in the Y axis direction in the XY plane.

Specifically, referring to fig. 2, the first magnet 1531 may be disposed on the sidewall 1515 of the second sub-portion 1513 by embedding, bonding, or fastening, the first coil 1533 may be disposed on the sidewall 1113 of the base 111 by embedding, bonding, fastening, screwing, or welding, and electrically connected to a circuit board (not shown) by a conductive member, the first coil 1533 may also be formed on the circuit board and electrically connected to the circuit board, and the circuit board may be disposed on the sidewall 1113 of the base 111 by embedding, bonding, fastening, screwing, or welding. The first magnet 1531 and the first coil 1533 are disposed at an interval to avoid the first magnet 1531 from colliding and rubbing with the first coil 1533 when the carrier 131 moves along the optical axis MM1, so as to cause the first magnet 1531 and/or the first coil 1533 to be damaged, thereby affecting the normal operation of the voice coil motor 10.

In some embodiments, in the case that the first magnet 1531 is disposed on the sidewall 1515 of the second sub-portion 1513 by embedding, the carrier 151 and the first magnet 1531 may be formed as an integral structure by two-time injection molding. First, injection molding is performed to form a base structure (the aforementioned one-piece injection molded part) of the carrier 151, which leaves an installation space (not shown) at a position corresponding to the first coil 1533 on the sidewall 1113 of the base 111. Next, the first magnet 1531 is disposed in the installation space. The base structure is then injection molded a second time with the first magnet 1531 to completely encapsulate the first magnet 1531 with the same material as the base structure, thereby embedding the first magnet 1531 in the side wall 1515 of the second sub-portion 1513. It is noted that, in some embodiments, the first magnet 1531 may be installed in the installation space through an SMT (Surface Mounted Technology) mounting process.

In some embodiments, the first magnet 1531 may be a permanent magnet (having a magnetic field of its own), such as a neodymium iron boron magnet, a ferrite magnet, an alnico magnet, or the like, without limitation. When the first coil 1533 is energized, the first coil 1533 can generate a magnetic field, so that a driving force can be generated between the first magnet 1531 and the first coil 1533, and the driving force drives the carrier 151 to move in the XY plane and/or rotate around the optical axis MM1 of the lens 20 in the XY plane, so as to realize the anti-shake function.

Referring to fig. 2, 6 and 10, the first magnet 1531 includes a first magnetic region 15311, a second magnetic region 15313 and a non-magnetic region 15315 connecting the first magnetic region 15311 and the second magnetic region 15313. In the same drive assembly 153, the magnetic poles of the first magnetic region 15311 and the second magnetic region 15313 are oppositely disposed. For example, if the magnetic pole of the first magnetic region 15311 facing the corresponding first coil 1533 is an N pole and the magnetic pole of the second magnetic region 15313 facing away from the corresponding first coil 1533 is an S pole, the magnetic pole of the second magnetic region 15313 facing the corresponding first coil 1533 is an S pole and the magnetic pole of the second magnetic region 15313 facing away from the corresponding first coil 1533 is an N pole. For another example, if the magnetic pole of the first magnetic region 15311 facing the corresponding first coil 1533 is an S pole and the magnetic pole of the second magnetic region 15313 facing away from the corresponding first coil 1533 is an N pole, the magnetic pole of the second magnetic region 15313 facing the corresponding first coil 1533 is an N pole and the magnetic pole of the second magnetic region 15313 facing away from the corresponding first coil 1533 is an S pole.

In one example, the first magnet 1531 may be a unitary structure. In another example, the first magnet 1531 may be formed by combining a plurality of separate bodies. When the first magnet 1531 is formed by combining a plurality of split structures, the first magnetic region 15311, the second magnetic region 15313, and the non-magnetic region 15319 can be regarded as three single structures, and the three single structures are combined to form the first magnet 1531; alternatively, the first magnetic region 15311 and the non-magnetic region 15319 may be formed as a single structure, and the second magnetic region 15313 may be formed as another single structure, and the two single structures may be combined to form the first magnet 1531; still alternatively, the second magnetic region 15313 and the non-magnetic region 15319 may be formed as a single structure, and the first magnetic region 15311 may be formed as another single structure, and the two single structures may be combined to form the first magnet 1531.

Referring to fig. 2, 5 and 9, in each driving assembly 153, the two first coils 1533 can be independently controlled and respectively act on the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531 to apply a force to the corresponding first magnet 1531, the force being used to make the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range.

With continued reference to fig. 2, fig. 5 and fig. 9, further, in an embodiment, each driving element 153 may further include a driving chip 1535 and two position detecting units 1537. The driving chip 1535 and the two first coils 1533 are electrically connected to a circuit board (the circuit board 118 may be the same as the circuit board), and are configured to control the two first coils 1533 respectively. One of the two position detection units 1537 is embedded in the driving chip 1535 and corresponds to one of the two first coils 1533, and the other is disposed on the circuit board and corresponds to the other of the two first coils 1533, and the position detection unit 1537 is configured to detect a distance between the two first coils 1533 and the corresponding first magnet 1531. In the case where the difference in the distance between the two first coils 1533 and the corresponding first magnet 1531 exceeds a preset range, the driving chip 1535 controls the energizing current of at least one of the two first coils 1533 so that the deflection of the carrier 151 about the optical axis MM of the lens 20 is within a predetermined range. Referring to fig. 11, in the anti-shake process, if the left position detecting unit 1537 detects that the distance between the first coil 1533 and the first magnet 1531 is a, and the right position detecting unit 1537 detects that the distance between the first coil 1533 and the first magnet 1531 is B (i.e., the average distance between the first magnetic region 15311 and the first coil 1533 is a, and the average distance between the second magnetic region 15313 and the first coil 1533 is B), and the difference between a and B is greater than the predetermined range, it indicates that the rotation of the carrier 151 around the XY plane is beyond the expected value, and the shake is stronger, as shown in the left diagram of fig. 11. At this time, the driving chip 1535 controls the energizing current of at least one of the two first coils 1533 to make the deflection of the carrier 151 around the optical axis MM of the lens 20 within a predetermined range. In one example, the driving chip 1535 can control the current applied to the right first coil 1533 to be larger than the current applied to the left first coil 1533, so that the acting force between the right first coil 1533 and the second magnetic region 15313 is larger than the acting force between the left first coil 1533 and the first magnetic region 15311, and the resultant force of the two acting forces makes the first magnet 1531 rotate and return to the state where the difference between a and B is within the predetermined range, for example, return to the state of a = B shown in the right diagram of fig. 11. At this time, the shake around the optical axis MM1 in the XY plane is acceptable in the field of imaging, in other words, the image captured by the camera module 100 (shown in fig. 12) has a good anti-shake effect.

In another embodiment, each driving component 153 may further include two driving chips, the two driving chips and the two first coils 1533 correspond to each other and are electrically connected to the circuit board, each driving chip is provided with a position detecting unit inside and is configured to control the current of the corresponding first coil 1533, and the position detecting unit 1537 is configured to detect a distance between the two first coils 1533 and the corresponding first magnet 1531; in the case where the difference in distance between the two first coils 1533 and the corresponding first magnets 1531 exceeds a preset range, at least one of the two driving chips controls the energization current in the corresponding first coils 1531 to make the deflection of the carrier 151 about the optical axis MM1 of the lens 20 within a predetermined range.

Referring to fig. 2, 5 and 6, in some embodiments, the first magnet 1531 of the at least one driving element 153 has a shaped structure, and the thickness of opposite ends 15317 and 15319 of the shaped structure of the first magnet 1531 is greater than the thickness of the middle portion 15318 between the opposite ends 15317 and 15319. In one example, the thickness of the two ends 15317, 15319 is the same and greater than the thickness of the middle portion 15318. In another example, the

ends

15317, 15319 are of different thicknesses, e.g., one end 15317 is thicker than the other end 15319, or one end 15319 is thicker than the other end 15317, in which case both ends 15317, 15319 are thicker than the middle portion 15318. The thickness of the opposite ends 15317 and 15319 of the first magnet 1531 with the special-shaped structure is greater than the thickness of the middle portion 15318 between the opposite ends 15317 and 15319, so that the middle portion of the first magnet 1531 with the special-shaped structure is concave to form a recess, and at this time, the side wall 1515 on which the first magnet 1531 with the special-shaped structure is mounted can be convex toward the recess, as shown in fig. 7, compared with the side wall with the same wall thickness, the lens 20 can be closer to the outer side of the housing 10, thereby reducing the size of the voice coil motor 10 in the X-axis direction or the Y-axis direction, further reducing the size of the camera module 100 (shown in fig. 12) in the XY-plane, and realizing miniaturization.

In the case where the driving assembly 153 includes two, in one example, the first magnet 1531 of one of the two driving assemblies 153 may have a special-shaped structure, and the first magnet 1531 of the other driving assembly 153 may have a non-anisotropic structure, for example, a rectangular structure. For example, the first magnet 1531 disposed on the sidewall 1515 in the X-axis direction has a special-shaped structure, and the first magnet 1531 disposed on the sidewall 1515 in the Y-axis direction has a rectangular structure. At this time, the side wall 1515 in the X-axis direction on which the first magnet 1531 of the irregular structure is mounted may protrude toward the recess in the X-axis direction on the first magnet 1531, and the lens 20 may be located closer to the outside of the housing 10 than the side wall having the same thickness, thereby reducing the size of the voice coil motor 10 in the X-axis direction, and further reducing the size of the camera module 100 (shown in fig. 12) in the XY plane, and achieving miniaturization. For another example, the first magnet 1531 disposed on the sidewall 1515 in the Y-axis direction has a special-shaped structure, and the first magnet 1531 disposed on the sidewall 1515 in the X-axis direction has a rectangular structure. At this time, the sidewall 1515 in the Y axis direction on which the first magnet 1531 of the irregular structure is mounted may protrude toward the recess in the Y axis direction on the first magnet 1531, and the lens 20 may be located closer to the outside of the housing 10 than the sidewall having the same thickness, thereby reducing the size of the voice coil motor 10 in the Y axis direction, and further reducing the size of the camera module 100 (shown in fig. 12) in the XY plane, and achieving miniaturization.

In another example, the first magnets 1531 of the two drive assemblies 153 are each shaped. Specifically, the first magnet 1531 disposed on the sidewall 1515 in the X-axis direction has a deformed structure, and the first magnet 1531 disposed on the sidewall 1515 in the Y-axis direction also has a deformed structure. At this time, the side wall 1515 in the X-axis direction on which the first magnet 1531 of the irregular structure is mounted may protrude toward the recess in the X-axis direction on the first magnet 1531, and the side wall 1515 in the Y-axis direction on which the first magnet 1531 of the irregular structure is mounted may protrude toward the recess in the Y-axis direction on the first magnet 1531, and the lens 20 may be located closer to the outside of the housing 10 than the side wall having the same thickness, thereby reducing the dimensions of the voice coil motor 10 in the X-axis direction and the Y-axis direction, and further reducing the dimension of the camera module 100 (shown in fig. 12) in the XY plane to the maximum extent, and achieving miniaturization.

Referring to fig. 2, 5 and 9, in some embodiments, the sidewall 1515 of the carrier 151 where the first magnet 1531 (including the irregular structure and the non-irregular structure, such as the rectangular structure) is mounted may include a plastic body and a magnetic metal sheet 17 embedded in the plastic body, and the first magnet 1531 is attached to the magnetic metal sheet 17. In this case, the plastic body and the magnetic metal sheet 17 may be manufactured into the carrier 151 of an integrated structure by an insert molding process, and then the first magnet 1531 is attached to the magnetic metal sheet 17, so that the carrier 151 of such a structure simplifies the subsequent installation of the first magnet 1531, and improves the assembly efficiency of the voice coil motor 10.

In some embodiments, the magnitude and direction of the magnetic field generated by the first coil 1533 can be adjusted according to the magnitude and direction of the current flowing through the first coil 1533. The first magnet 1531 cooperates with the first coil 1533 to generate a driving force, and the vcm 10 adjusts the moving distance and direction of the carrier 151 in the X-axis direction and the Y-axis direction, and the angle and direction of the carrier 151 rotating around the optical axis MM1 in the XY plane by adjusting the magnitude and direction of the current flowing through the first coil 1533.

Referring to fig. 2, 5 and 9, the driving element 153 may further include a restoring element 1539, wherein the restoring element 1539 is disposed at a bottom of the first magnet 1531 and provides a restoring force for driving the carrier 151 to return to the central position when the first coil 1533 is not energized. Specifically, the restoring member 1539 may be a metal plate, which may be mounted to the bottom of the first magnet 1531 by gluing, welding, or the like. The restoring member 1539 has a shape matching the shape of the bottom of the first magnet 1531. When the first coil 1533 is energized, it cooperates with the first magnet 1531 to generate a driving force, which drives the carrier 151 to move in the XY plane (including the X-direction movement and the Y-direction movement) and/or rotate around the optical axis MM1 in the plane, so as to counteract the shake of the lens 20 in the XY plane along the X-axis direction, along the Y-axis direction, and around the optical axis MM1, so as to achieve anti-shake. After the anti-shake operation is performed, if the first coil 1533 is turned off, the restoring element 1539 can ensure that the carrier 151 can return to the central position (the initial position before the anti-shake operation) to prepare for the next anti-shake operation, so as to improve the efficiency of the next anti-shake operation.

Referring to fig. 2, in some embodiments, the vcm 10 may further include a fixing structure 17. The fixing structure 17 is mounted on the carrier 131 and is used for limiting the movement of the carrier 151 along with the carrier 131 toward the object side of the lens 20 on the optical axis MM 1.

Specifically, the fixing structure 17 is disposed in the accommodating space 115 of the housing 11, and the fixing structure 17 is detachably connected to the carrier 131, so as to prevent the carrier 151 from driving the carrier 131 to move together on the optical axis MM1 toward the object side of the lens 20 and deviating from a clearly focused position when the carrier 151 moves in the XY plane or rotates around the optical axis MM1 in the XY plane for shake compensation, thereby ensuring a better imaging effect of the camera module 100 (shown in fig. 12).

With continued reference to fig. 2, in some embodiments, the fixing structure 17 may include a blocking member 171 and a connecting member 173 extending from an edge (periphery) of the blocking member 171 toward the carrier 131. The blocking member 171 is carried on the top wall 1516 of the second sub-portion 1513. Correspondingly, a plurality of connectors 1317 are disposed on the outer side of the sidewall 1313 of the carrier 131, and each connector 173 is connected to the corresponding connector 1317 to limit the carrier 151 from moving toward the object side of the lens 20 on the optical axis MM 1. It is noted that in some embodiments, there may be a plurality of connectors 1317, and a plurality of connectors 1317 are disposed on the outer side of one or more side walls 1313 of carrier 131. Correspondingly, there may be a plurality of connecting members 173, and the plurality of connecting members 173 are disposed on the edge (periphery) of the blocking member 171. The connecting members 1317 and the connecting members 173 may be one-to-one or many-to-one. For example, one coupler 1317 corresponds to one connector 173; or a plurality of couplers 1317 for one connector 173; or a plurality of couplers 1317 for a plurality of connectors 173.

Referring to fig. 2, in some embodiments, the blocking member 171 is further provided with a through hole 175 corresponding to the lens 20, so that the first sub-portion 1511 of the carrier 151 can pass through the through hole 175 and be disposed on the blocking member 171, so that the external light can enter the lens 20 of the first sub-portion 1511 after passing through the light-passing hole 117 and the through hole 175 in sequence.

Referring to fig. 12, the present application further provides a camera module 100. The camera module 100 may include the voice coil motor 10 and the lens 20 of any of the above embodiments, and the lens 20 is mounted on a carrier 151 (shown in fig. 2).

Referring to fig. 2, in some embodiments, the number of the lenses 22 in the lens 20 may be one or more, wherein one or more lenses 22 are disposed on the first sub-portion 1511, the lenses 22 can mutually correct and filter the external light incident thereon, and when the external light passes through the lens 20, the lenses 22 filter stray light (e.g., infrared light) layer by layer, so as to improve the imaging effect of the camera module 100. In some embodiments, the lens 22 may be a spherical lens, an aspherical lens, or a free-form lens, which is not limited herein. The material of the lens 22 is plastic or glass, or a mixture of plastic and glass, which is not limited herein. Wherein a plurality of lenses 22 may be fixedly disposed within the first sub-portion 1511; the plurality of lenses 22 can also move along the optical axis MM1 within the first sub-portion 1511 (for example, an actuator is additionally provided to drive the corresponding lens 22 to move), so as to achieve zooming or fine focusing, thereby improving the imaging effect of the camera module 100.

Referring to fig. 2 and 12, when the camera module 100 is assembled, first, one of the second coil 1333 and the second magnet 1331 is disposed on the carrier 131, and the other is disposed on the base 111. Then, the carrier 131 loaded with one of the second coil 1333 and the second magnet 1331 is disposed in the base 111 loaded with the other of the second coil 1333 and the second magnet 1331. Next, the first magnet 1531 is disposed on the second sub-portion 1513, and the first coil 1533 is disposed on the base 111. Then, the carrier 151 with the first magnet 1531 mounted thereon is disposed in the carrier 131, wherein the lens 22 can be integrally formed with the first sub-portion 1511 of the carrier 151. Then, the fixing structure 17 is mounted on the carrier 131 to limit the movement of the carrier 151 carrying the carrier 131 on the optical axis MM1 toward the object side of the lens 20. Finally, the housing 113 covers the base 111 to complete the assembly.

When the camera module 100 focuses, the second coil 1333 of the driving device 133 is energized to generate an actuating force together with the second magnet 1331, and the actuating force drives the carrier 131 to move along the optical axis MM1, so as to drive the anti-shake structure 15 and the lens 20 disposed in the anti-shake structure 15 to move along the optical axis MM1 together, thereby implementing the focusing function.

When the camera module 100 is used for anti-shake, if the lens 20 moves along the X-axis or the Y-axis or rotates around the optical axis MM1 in the XY plane, the first coil 1533 of the driving assembly 153 is energized to interact with the first magnet 1531 to generate a driving force, and the driving force drives the carrier 151 to move in the opposite direction along the X-axis or the Y-axis or rotate in the opposite direction around the optical axis MM1 in the XY plane, so as to compensate the movement offset of the lens 20 on the X-axis or the Y-axis or the rotation offset of the lens 20 rotating around the optical axis MM1 in the XY plane, thereby achieving the anti-shake function. For example, when the lens 20 moves 5mm in the forward direction of the X axis, the first coil 1533 of the driving assembly 153 may be energized to generate a magnetic field, and the first coil 1533 and the magnetic field of the first magnet 1531 act to generate a driving force, and the driving force drives the carrier 151 to move 5mm in the reverse direction of the X axis, so as to compensate the movement offset of the lens 20 along the X axis, and finally implement the anti-shake function.

Referring to fig. 2, 5 and 9, in the camera module 100 of the present application, the two first coils 1533 of the anti-shake structure 15 can be controlled individually and respectively act on the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531 to apply a force to the corresponding first magnet 1531, and the force can make the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range. Thus, even if the carrier 151 experiences a deflection about the optical axis MM1 of the lens 20 in a plane in which it is displaced during compensation for a deviation in the plane perpendicular to the optical axis MM1, the carrier 151 can be pulled back in the opposite direction by the force, so that the deflection of the carrier 151 about the optical axis MM1 of the lens 20 is within a predetermined range, thereby ensuring the anti-shake effect and thus the imaging quality.

Referring to fig. 13, an electronic device 1000 according to an embodiment of the present disclosure includes the camera module 100 and the main body 200 according to any of the above embodiments. The camera module 100 is mounted to the body 200.

Specifically, the electronic device 1000 may be a mobile phone, a tablet computer, a camera, a personal digital assistant, a wearable device, an intelligent robot, an intelligent vehicle, and the like, wherein the wearable device includes an intelligent bracelet, an intelligent watch, intelligent glasses, and the like. The camera module 100 may be mounted on the body 200 or mounted in the body 200, which is not limited herein.

Referring to fig. 2, 5 and 13, in the electronic device 1000 of the present application, the two first coils 1533 of the anti-shake structure 15 can be controlled independently and respectively act on the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531 to apply a force to the corresponding first magnet 1531, wherein the force can make the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range. Thus, even if the carrier 151 undergoes deflection about the optical axis MM1 of the lens 20 in the plane during compensation for the deviation in the plane perpendicular to the optical axis MM1, the carrier 151 can be pulled back in the opposite direction by the force, so that the deflection of the carrier 151 about the optical axis MM1 of the lens 20 is within a predetermined range, thereby ensuring the anti-shake effect and thus the imaging quality.

In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "a plurality" means at least two, e.g., two, three, unless specifically limited otherwise.

Although embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and not to be construed as limiting the present application and that those skilled in the art may make variations, modifications, substitutions and alterations to the above embodiments within the scope of the present application, which is defined by the claims and their equivalents.

Claims

1. A voice coil motor, comprising:

a housing; and

the anti-shake structure is mounted on the shell and comprises a carrier and a driving assembly, the carrier is used for mounting a lens, the driving assembly comprises a first magnet and two first coils, the first magnet is arranged corresponding to the two first coils, one of the first magnet and the first coils is mounted on the carrier, the other one of the first magnet and the first coils is mounted on the shell, the first magnet comprises a first magnetic area and a second magnetic area, the two first coils can be independently controlled and respectively act on the first magnetic area and the second magnetic area in the corresponding first magnets to exert acting force on the corresponding first magnets, and the acting force is used for enabling the deflection of the carrier around the optical axis of the lens to be within a preset range.

2. The voice coil motor of claim 1, further comprising a circuit board mounted to the housing; the drive assembly further includes:

the two driving chips and the two first coils correspond to each other respectively and are electrically connected with the circuit board, a position detection unit is arranged in each driving chip and is used for controlling the electrifying current of the corresponding first coil, and the position detection unit is used for detecting the distance between the two first coils and the corresponding first magnet; in the case that the difference between the distances between the two first coils and the corresponding first magnets exceeds a preset range, at least one of the two driving chips controls the energizing current in the corresponding first coil so as to make the deflection of the carrier around the optical axis of the lens within a preset range.

3. The voice coil motor of claim 1, further comprising a circuit board mounted to the housing; the drive assembly further includes:

the driving chip and the two first coils are electrically connected with the circuit board and are used for respectively controlling the two first coils; and

one of the two position detection units is arranged in the driving chip and corresponds to one of the two first coils, the other position detection unit is arranged on the circuit board and corresponds to the other one of the two first coils, and the position detection units are used for detecting the distance between the two first coils and the corresponding first magnets;

when the difference of the distances between the two first coils and the corresponding first magnets exceeds a preset range, the driving chip controls the energizing current of at least one of the two first coils so as to enable the deflection of the carrier around the optical axis of the lens to be within a preset range.

4. A voice coil motor as claimed in any one of claims 1 to 3, wherein the number of drive assemblies comprises two, the two drive assemblies being located on adjacent sides of the carrier.

5. The vcm of claim 4, wherein the first magnet further comprises a non-magnetic section connecting the first magnetic section and the second magnetic section, and the magnetic poles of the first magnetic section and the second magnetic section are oppositely arranged in the same driving assembly; the first magnet is of an integrated structure; or the first magnet is formed by combining a plurality of split structures.

6. The voice coil motor of any one of claims 1 to 3, wherein the first magnet has a profile structure, and a thickness of the opposite ends is greater than a thickness of a middle portion between the opposite ends.

7. The voice coil motor of claim 6, wherein the first magnet of the odd-shaped structure has the same thickness at opposite ends thereof, and the middle portion has the same thickness.

8. The voice coil motor of claim 1, wherein the housing comprises a base and a casing, the casing being mounted over the base; the first magnets are arranged on the carrier, and the two first coils are arranged on the base; the side wall of the carrier, on which the first magnet is installed, comprises a plastic body and a magnetic metal sheet embedded in the plastic body, and the first magnet is adsorbed on the magnetic metal sheet.

9. The vcm of claim 1, wherein the driving assembly further comprises a restoring member disposed at a bottom of the first magnet of the profile and providing a restoring force when the first coil is not energized, the restoring force being used to drive the carrier to return to the center position.

10. The voice coil motor of claim 1, wherein the carrier is a unitary structure and includes a first sub-portion and a second sub-portion connected to each other, the first sub-portion being used for receiving a lens of the lens, and the second sub-portion being used for mounting the first magnet or the first coil.

11. The utility model provides a camera module which characterized in that includes:

the voice coil motor of any one of claims 1-10; and

and the lens is arranged on the carrier of the anti-shake structure.

12. An electronic device, comprising:

a body; and

the camera module of claim 11, said camera module mounted to said body.