Voice coil motors, camera modules, and electronic devices

Abstract

This application discloses a voice coil motor, a camera module, and an electronic device. The voice coil motor includes a housing and an image stabilization structure. The image stabilization structure includes a carrier and a drive assembly. The carrier mounts a lens, and the drive assembly includes a first magnet and two first coils correspondingly arranged. One of the first magnet and the first coil is mounted on the carrier, and the other is mounted on the housing. The first magnet includes first and second magnetic regions. The two first coils can be controlled independently and interact with the first and second magnetic regions of the corresponding first magnet to apply a force to the corresponding first magnet. The force is used to keep the deflection of the carrier around the optical axis of the lens within a predetermined range. In the voice coil motor, camera module, and electronic device of this application, even if the carrier deflects around the optical axis of the lens in that plane during the process of compensating for the offset on the plane perpendicular to the optical axis, the force can pull the carrier back in the opposite direction to ensure the image stabilization effect and thus ensure image quality.

Description

Technical Field

[0001] This application relates to the field of imaging technology, and in particular to a voice coil motor, a camera module, and an electronic device. Background Technology

[0002] As a common component in mobile phones and other electronic devices, camera modules face increasingly stringent demands for their shooting capabilities. For example, image stabilization is required to capture high-quality images. To achieve image stabilization, camera modules typically use ball bearing motors to compensate for lens misalignment in the plane perpendicular to the optical axis. However, these motors may also rotate around the lens's optical axis, which is unacceptable. Compensating for this rotation has become a pressing issue in the field of image stabilization. Summary of the Invention

[0003] The embodiments of this application provide a voice coil motor, a camera module, and an electronic device.

[0004] The voice coil motor of this application includes a housing and an image stabilization structure. The image stabilization structure is mounted on the housing and includes a carrier and a drive assembly. The carrier is used to mount a lens. The drive assembly includes a first magnet and two first coils. The first magnet and the two first coils are correspondingly arranged. One of the first magnet and the first coil is mounted on the carrier, and the other is mounted on the housing. The first magnet includes a first magnetic region and a second magnetic region. The two first coils can be controlled independently and interact with the first magnetic region and the second magnetic region of the corresponding first magnet to apply a force to the corresponding first magnet. The force is used to deflect the carrier around the optical axis of the lens within a predetermined range.

[0005] In some embodiments, the voice coil motor further includes a circuit board mounted on the housing; the driving assembly further includes two driving chips, each driving chip and each of the two first coils corresponding to and electrically connected to the circuit board, each driving chip having a built-in position detection unit for controlling the energizing current of the corresponding first coil, the position detection unit for detecting the distance between the two first coils and the corresponding first magnet; if the difference between the distance between the two first coils and the corresponding first magnet exceeds a preset range, at least one of the two driving chips controls the energizing current in the corresponding first coil to keep the deflection of the carrier around the optical axis of the lens within a predetermined range.

[0006] In some embodiments, the voice coil motor further includes a circuit board mounted on the housing; the drive assembly further includes a drive chip and two position detection units. The drive chip and the two first coils are electrically connected to the circuit board and are used to control the two first coils respectively. One of the two position detection units is built into the drive chip and corresponds to one of the two first coils, while the other is disposed on the circuit board and corresponds to the other of the two first coils. The position detection unit is used to detect the distance between the two first coils and their corresponding first magnets. If the difference in distance between the two first coils and their corresponding first magnets exceeds a preset range, the drive chip controls the current flowing through at least one of the two first coils to keep the deflection of the carrier about the optical axis of the lens within a predetermined range.

[0007] In some embodiments, the number of drive components includes two, with the two drive components located on adjacent sides of the carrier, respectively.

[0008] In some embodiments, the first magnet further includes 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 arranged in opposite directions in the same driving component; the first magnet is an integral structure.

[0009] In some embodiments, the first magnet further includes 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 arranged in opposite directions in the same driving component; the first magnet is composed of multiple split structures combined together.

[0010] In some embodiments, the first magnet has an irregular shape, and the thickness at opposite ends is greater than the thickness of the middle portion between opposite ends.

[0011] In some embodiments, the opposite ends of the irregularly shaped first magnet have the same thickness, and the middle portion has the same thickness.

[0012] In some embodiments, the housing includes a base and an outer shell, the outer shell being mounted on the base; the first magnet is mounted on the carrier, and two first coils are mounted on the base; the sidewall of the carrier on which the first magnet is mounted includes a plastic body and a magnetic metal sheet embedded in the plastic body, the first magnet being attracted to the magnetic metal sheet.

[0013] In some embodiments, the drive assembly further includes a restoring element disposed at the bottom of the irregularly shaped first magnet and providing a restoring force when the first coil is de-energized, the restoring force being used to drive the carrier back to the center position.

[0014] In some embodiments, the carrier is an integral structure comprising a first sub-part and a second sub-part connected together, the first sub-part for housing the lens element, and the second sub-part for mounting the first magnet or the first coil.

[0015] The camera module of this application includes a lens and a voice coil motor as described in any of the above embodiments. The lens is mounted on the carrier of the image stabilization structure.

[0016] The electronic device according to the embodiments of this application includes a body and a camera module as described in the above embodiments, wherein the camera module is mounted on the body.

[0017] In the voice coil motor, camera module, and electronic device of this application, the two first coils in the image stabilization structure can be controlled independently and interact with the first and second magnetic regions of the corresponding first magnets, respectively, to apply a force to the corresponding first magnets. This force ensures that the deflection of the carrier around the optical axis of the lens is within a predetermined range. Therefore, even if the carrier deflects around the optical axis of the lens in the plane perpendicular to the optical axis during compensation, the force can pull the carrier back in the opposite direction, keeping the deflection within the predetermined range to ensure image stabilization and thus image quality.

[0018] Additional aspects and advantages of this 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 this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0020] Figure 1 This is a three-dimensional assembly schematic diagram of a voice coil motor according to certain embodiments of this application;

[0021] Figure 2 This is an exploded perspective view of a voice coil motor according to certain embodiments of this application;

[0022] Figure 3 yes Figure 1 The diagram shows a cross-sectional view of the voice coil motor along line III-III.

[0023] Figure 4 This is a three-dimensional exploded view of the anti-shake structure in a voice coil motor according to certain embodiments of this application;

[0024] Figure 5 This is an exploded perspective view of the drive assembly of the anti-vibration structure in a voice coil motor according to certain embodiments of this application;

[0025] Figure 6 yes Figure 5 A schematic diagram of the planar structure of the drive component shown;

[0026] Figure 7 This is a planar structural schematic diagram of a voice coil motor according to certain embodiments of this application;

[0027] Figure 8 This is a three-dimensional structural schematic diagram of the housing of the voice coil motor and the drive assembly of the anti-vibration structure according to certain embodiments of this application;

[0028] Figure 9 This is a three-dimensional structural diagram of the drive component in the anti-shake structure of the voice coil motor according to certain embodiments of this application;

[0029] Figure 10 yes Figure 9 A schematic diagram of the planar structure of the drive component shown;

[0030] Figure 11 This is a schematic diagram of the anti-shake principle of the anti-shake structure of the voice coil motor in some embodiments of this application;

[0031] Figure 12 This is a three-dimensional assembly diagram of a camera module according to certain embodiments of this application;

[0032] Figure 13 This is a schematic diagram of the structure of an electronic device according to certain embodiments of this application. Detailed Implementation

[0033] The embodiments of this application will be further described below with reference to the accompanying drawings. The same or similar reference numerals in the drawings denote the same or similar elements or elements having the same or similar functions throughout. Furthermore, the embodiments of this application described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting this application.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] As a commonly used component in mobile phones and other electronic devices, camera modules face increasingly stringent requirements for their shooting capabilities. For example, image stabilization is required to capture high-quality images. To achieve image stabilization, camera modules typically employ ball motors to compensate for lens misalignment on the plane perpendicular to the optical axis. However, ball motors may also rotate around the lens's optical axis, which is unacceptable. How to compensate for this rotation has become a pressing problem in the field of image stabilization. Therefore, to address this issue, this application provides a voice coil motor 10 (… Figure 1 (as shown), camera module 100 ( Figure 12 (as shown) and electronic equipment 1000 ( Figure 13 (As shown).

[0036] Please see Figure 1 and Figure 2 The voice coil motor 10 of this embodiment includes a housing 11 and an image stabilization structure 15. The image stabilization structure 15 is mounted on the housing 11 and includes a carrier 151 and a drive assembly 153. The carrier 151 is used to mount the lens 20. The drive assembly 153 includes a first magnet 1531 and two first coils 1533, with the first magnet 1531 and the two first coils 1533 correspondingly arranged. 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. Please refer to... Figure 5 and Figure 8 The first magnet 1531 includes a first magnetic region 15311 and a second magnetic region 15313. Two first coils 1533 can be controlled individually and interact with the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531 respectively to apply a force to the corresponding first magnet 1531. The force is used to deflect the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range.

[0037] In the voice coil motor 10 of this application, the two first coils 1533 in the image stabilization structure 15 can be controlled independently and interact with the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531, respectively, to apply a force to the corresponding first magnet 1531. This force can keep the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range. Therefore, even if the carrier 151 deflects around the optical axis MM1 of the lens 20 in the plane perpendicular to the optical axis MM1 during the compensation process, the force can pull the carrier 151 back in the opposite direction, keeping the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within the predetermined range, thereby ensuring the image stabilization effect and thus ensuring image quality. It should be noted that the XY plane is the plane perpendicular to the optical axis MM1 of the lens 20. The direction of the optical axis MM1 is usually 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; or 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.

[0038] The voice coil motor 10 will be further explained below with reference to the accompanying drawings.

[0039] Please see Figure 2 The voice coil motor 10 may also include a focusing structure 13, and both the focusing structure 13 and the image stabilization structure 15 are disposed in the housing 11.

[0040] Please see Figure 1 and 2 In some embodiments, the housing 11 includes a base 111 and an outer shell 113, with the outer shell 113 mounted on the base 111. The base 111 includes a bottom wall 1111 and side walls 1113 extending from the edge (periphery) of the bottom wall 1111 toward the outer shell 113. The outer shell 113 includes a top plate 1131 that matches 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 outer shell 113 is connected to the base 111, and the outer shell 113 and the base 111 together form a receiving space 115. Both the focusing structure 13 and the image stabilization structure 15 are disposed in the housing 11, and the carrier 151 of the image stabilization structure 15 is received in the focusing structure 13.

[0041] In some embodiments, the outer shell 113 can be non-detachably connected to the base 111 by welding and / or gluing. In other embodiments, the outer shell 113 can be detachably connected to the base 111 by threaded connection, snap-fit ​​connection, hinge connection, etc., and this is not limited. In the embodiments of this application, the outer shell 113 and the base 111 are connected by snap-fit. For example, a connecting member (not shown) is provided on the side plate 1133 of the outer shell 113, and a connecting member (not shown) is provided on the side wall 1113 of the base 111. The connecting member and the connecting member cooperate to allow the outer shell 113 to be mounted on the base 111. It should be noted that in some embodiments, there can be multiple connecting members, which are provided on one or more side plates 1133 of the outer shell 113. Correspondingly, there can also be multiple connecting members, which are provided on one or more side walls 1113 of the base 111. The connecting member and the connecting member can be one-to-one or many-to-one. For example, one coupling corresponds to one connector; or multiple couplings correspond to one connector; or multiple couplings correspond to multiple connectors.

[0042] Please see Figure 2 In some embodiments, the housing 11 is provided with a light-transmitting hole 117 that allows external light to pass through. That is, both the bottom wall 1111 of the base 111 and the top plate 1131 of the outer shell 113 are provided with light-transmitting holes 117. The light-transmitting hole 117 can be any shape, such as square, circular, or triangular. It should be noted that in some embodiments, the shape of the housing 11 can be a cube, cuboid, triangular prism, hexagonal prism, etc., and this is not limited. That is, the shapes of the outer shell 113 and the base 111 can also be cubes, cuboids, triangular prisms, hexagonal prisms, etc.

[0043] Please continue reading. Figure 2 In some embodiments, the focusing structure 13 includes a carrier 131 and a driving device 133. A portion of the focusing structure 13 is disposed within the receiving space 115 of the housing 11. Specifically, one of the carrier 131 and the driving device 133 is disposed within 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.

[0044] Please continue reading. Figure 2In 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. The bottom wall 1311 and the side wall 1313 of the carrier 131 together form a cavity 1315. A mating member 132 is provided on the outer side of the side wall 1313 of the carrier 131. Correspondingly, a guide member 112 is provided on the inner side of the side wall 1113 of the base 111. The guide member 112 and the mating member 132 cooperate with each other to guide the carrier 131 to move along the optical axis MM1 of the lens 20. In this embodiment, both the guide member 112 and the mating member 132 are in pairs. The two guide members 112 and the two mating members 132 form two guide groups. These two guide groups can limit the deflection and / or flipping of the carrier 131 during its focusing process along the optical axis MM1. It should be noted that deflection refers to the rotation of the carrier 131 around the optical axis MM1 in the XY plane, and flipping refers to the rotation of the carrier 131 around the X-axis or Y-axis of the XY plane. It should also be noted that in some embodiments, the guide member 112 can be a guide rail, and correspondingly, the mating member 132 can be a guide ball. That is, a guide ball is provided on the outer side of the side wall 1313 of the carrier 131, and a guide rail is provided on the inner side of the side wall 1113 of the base 111. The guide rail and the guide ball cooperate to limit the rotation (the aforementioned deflection and / or flipping) of the carrier 131 during its focusing process along the optical axis MM1, thereby improving image quality. Alternatively, the outer side of the side wall 1313 of the carrier 131 may be provided with a guide rail, and the inner side of the side wall 1113 of the base 111 may be provided with guide balls. In some embodiments, there may be one or more guide balls. In the embodiments of this application, there may be multiple guide balls in each guide rail. Multiple guide balls make the contact surface of the guide group larger and the fulcrum more stable. Compared with only one guide ball in each guide rail, the guiding effect is more stable, and the degree of shaking of the carrier 131 during the movement along the optical axis MM1 of the lens 20 is greatly reduced, thereby avoiding the problem of movement jamming due to large shaking and ensuring the normal realization of the focusing function.

[0045] In other embodiments, the guide member 112 may be a guide rod, and correspondingly, the mating member 132 may be a guide rail. That is, a guide rail is provided on the outer side of the side wall 1313 of the carrier 131, and a guide rod is provided on the inner side of the side wall 1113 of the base 111. The guide rail and the guide rod cooperate to limit the rotation (the aforementioned deflection and / or flipping) of the carrier 131 during the focusing process along the optical axis MM1, thereby improving image quality. Alternatively, a guide rod may be provided on the outer side of the side wall 1313 of the carrier 131, and a guide rail may be provided on the inner side of the side wall 1113 of the base 111.

[0046] Please see Figure 2In 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 or the second coil 1333 is disposed on the side wall 1113 of the base 111, and the other is disposed on the side wall 1313 of the carrier 131. When the second coil 1333 is energized, it generates an actuating force with the second magnet 1331. This actuating force is used to drive the carrier 131 along the optical axis MM1 (…). Figure 1 (As shown) Move to focus.

[0047] In some embodiments, the second magnet 1331 can be a permanent magnet (possessing its own magnetic field), 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, thereby generating an actuating force between the second magnet 1331 and the second coil 1333. This actuating force drives the carrier 131 to move along the optical axis MM1 to achieve the focusing function.

[0048] In some embodiments, the second magnet 1331 can be disposed on one of the side walls 1113 of the base 111 or the side wall 1313 of the carrier 131 by means of embedding, bonding, snapping, etc. The second coil 1333 can be directly disposed on the other side wall 1113 of the base 111 or the side wall 1313 of the carrier 131 by means of embedding, bonding, snapping, threaded connection, welding, etc., and then electrically connected to the circuit board 118 through a conductive element (not shown). The second coil 1333 can also be formed on the circuit board 118 and electrically connected to the circuit board 118, and the circuit board 118 is disposed on the other side wall 1113 of the base 111 or the side wall 1313 of the carrier 131 by means of embedding, bonding, snapping, threaded connection, welding, etc. In addition, the second magnet 1331 and the second coil 1333 are arranged at intervals to avoid collision and friction between the second magnet 1331 and the second coil 1333 when the carrier 131 moves along the optical axis MM1, which would cause damage to the second magnet 1331 and / or the second coil 1333 and thus affect the normal operation of the voice coil motor 10.

[0049] In some embodiments, there may be one second magnet 1331 and one second coil 1333, with each second magnet 1331 corresponding to a second coil 1333. In other embodiments, there may be multiple second magnets 1331 and multiple second coils 1333, in which case the relationship between the second magnet 1331 and the second coil 1333 may be one-to-one or many-to-one. For example, one second magnet 1331 may correspond to one second coil 1333; or multiple second magnets 1331 may correspond to one second coil 1333.

[0050] In some embodiments, the magnitude and direction of the magnetic field generated by the second coil 1333 can be adjusted according to the magnitude and direction of the current flowing through the second coil 1333. The second magnet 1331, in conjunction with the energized second coil 1333, generates an actuating force. The voice coil motor 10 can adjust the distance and direction of the carrier 131's movement along the optical axis MM1 by adjusting the magnitude and direction of the current flowing through the second coil 1333. The direction of the optical axis MM1 includes both the positive and negative directions. The positive direction of the optical axis MM1 is the direction from the image side to the object side of the lens 20. The negative direction of the optical axis MM1 is the direction from the object side to the image side of the lens 20. The voice coil motor 10 can drive the carrier 131 to move in the positive or negative direction of the optical axis MM1 by changing the direction of the current supplied to the second coil 1333. The voice coil motor 10 can also control the distance by which the carrier 131 moves in the positive or negative direction of the optical axis MM1 by changing the magnitude of the current supplied to the second coil 1333.

[0051] Please continue reading. Figure 2 In some embodiments, the image stabilization structure 15 includes a carrier 151 and a drive assembly 153. The drive assembly 153 is used to drive the carrier 151 to move in the XY plane or rotate about the optical axis MM1 in the XY plane to achieve the image stabilization function.

[0052] Specifically, when the camera module 100 is working, for example, when the focusing structure 13 starts working (representing that the camera module 100 is working), the drive component 153 can drive the carrier 151 to move in the XY plane and / or rotate in the XY plane around the optical axis MM1 of the lens 20 (the aforementioned deflection), thereby canceling the shaking (offset) of the lens 20 in the X-axis direction or Y-axis direction of the XY plane and the shaking around the optical axis MM1 in the XY plane during the focusing process, so as to achieve the image stabilization function. Since the drive component 133 can drive the carrier 131 of the focusing structure 13 to move along the optical axis MM1 of the lens 20 to achieve the focusing function; the drive component 153 can drive the carrier 151 to move in the XY plane and / or rotate in the XY plane around the optical axis MM1 to achieve the image stabilization function, thereby making the camera module 100 ( Figure 12 As shown, it can simultaneously achieve focusing and image stabilization, improving shooting results.

[0053] Please refer to [link / reference] Figure 2In some embodiments, the carrier 151 is disposed within the cavity 1315, and the carrier 151 is supported on the bottom of the cavity 1315 of the carrier 131 by a plurality of guides 14, and is able to move in the XY plane and / or rotate around the optical axis MM1 in the XY plane, thereby counteracting the shaking of the lens 20 in the X-axis direction or Y-axis direction of the XY plane during focusing, as well as counteracting the deflection in the XY plane, so as to achieve the image stabilization function.

[0054] Please see Figure 2 and Figure 3 In one embodiment, a plurality of guide blocks 1318 extend from the bottom of the cavity 1315 toward the carrier 151. A plurality of guide grooves 1519 are formed 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 within the guide cavity 140. The sidewall of the guide cavity 140 is used to limit the movement stroke of the corresponding guide member 14.

[0055] Please see Figure 2 and Figure 3 Specifically, the carrier 151 includes a bottom 1517. The bottom wall 1311 of the carrier 131 extends protrudingly with a plurality of guide blocks 1318 in the direction toward the carrier 151, and the bottom 1517 of the carrier 151 is recessed in the direction away from the carrier 131 to form a plurality of guide grooves 1519. The plurality of guide grooves 1519 are correspondingly arranged with 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 provided in each guide cavity 140. The guide member 14 can abut against the bottom of the guide cavity 140 and the bottom surface of the guide groove 1519 respectively, and can move freely in the guide cavity 140. This allows the carrier 151 to be supported on the bottom of the cavity 1315 of the carrier 131, and allows the carrier 151 to move in the XY plane (including movement in the X direction and movement in the Y direction) and / or rotate around the optical axis MM1 in the XY plane on the bottom wall 1311 of the carrier 131. This counteracts the shaking of the lens 20 in the XY plane along the X-axis or Y-axis direction during focusing, as well as the deflection around the optical axis MM1, to achieve the image stabilization function.

[0056] Please see Figure 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, thereby limiting the movement stroke of the carrier 151 and avoiding the problem that the anti-shake function fails or even the carrier 151 derails (detaches from the carrier 131) due to excessive movement stroke of the carrier 151.

[0057] Please see Figure 2 and Figure 3 In some embodiments, the guide element 14 disposed within the guide cavity 140 can be a shock-absorbing ball bearing. This ball bearing can roll within the guide cavity 140, allowing the carrier 151 to move in the XY plane (including movement in the X direction and movement in the Y direction, hereinafter the same) 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 along the optical axis MM1 and the depth of the guide groove 1519 along the optical axis MM1 are both less than the diameter of the guide element 14, ensuring that the guide element 14 can contact the bottom wall of the guide cavity 140 and the bottom wall of the guide groove 1519. In this embodiment, there are four guide blocks 1318 and four guide grooves 1519. Correspondingly, there are also four guide elements 14 in each guide block 1318. The guide blocks 1318 and guide grooves 1519 are respectively disposed at the four corners of the carrier 131 and the carrier 151 to ensure that the carrier 151 can move stably. In other embodiments, the number and position of the guide blocks 1318 and guide grooves 1519 can be set according to specific needs. For example, when the cross-sectional shape of the carrier 131 and the support 151 along the XY plane is hexagonal, there can be six guide blocks 1318 and six guide grooves 1519, that is, six opposing guide blocks 1318 and guide grooves 1519 are respectively arranged at the six corners of the carrier 131 and the support 151. It is understood that the guide blocks 1318 and guide grooves 1519 can also be arranged at non-corner locations, such as on the side wall 1313 of the carrier 131 and the side wall 1515 of the support 151, which can also ensure more stable movement of the support 151.

[0058] In another embodiment, the bottom 1517 of the carrier 151 extends protrudingly toward the carrier 131 with a plurality of guide blocks, and the bottom of the cavity 1315 is recessed to form a plurality of guide grooves. Similarly, the plurality of guide grooves correspond to the plurality of guide blocks. Each guide block extends into the corresponding guide groove and forms a guide cavity. Each guide cavity is loaded with a guide member. The guide member abuts against the bottom surface of the guide groove and can move within the guide cavity. The sidewall of the guide cavity is used to limit the movement stroke of the corresponding guide member.

[0059] Please see Figure 2In some embodiments, the carrier 151 may be a one-piece injection molded part. Specifically, the carrier 151 includes a first sub-part 1511 and a second sub-part 1513 that are connected to each other. The first sub-part 1511 is used to house the lens 22, thereby forming the lens 20. The second sub-part 1513 is used to mount one of the first magnet 1531 and the first coil 1533 of the drive assembly 153. By using a carrier 151 with a one-piece structure to house the lens 22 and mount one of the first magnet 1531 and the first coil 1533, the voice coil motor 100 can avoid the problem of multiple mounting components causing issues with the camera module 100 ( Figure 12 (shown) and 1000 electronic devices ( Figure 13 The problem of too many internal structural components was addressed by implementing a voice coil motor 10 (shown). Figure 1 (Shown), camera module 100 ( Figure 12 (shown) and 1000 electronic devices ( Figure 13 This leads to miniaturization. Furthermore, the carrier 151 is a single-piece structure, reducing the assembly steps of the voice coil motor 10 and improving production efficiency. The lens 22 and carrier 151 can also be integrally molded. For example, the lens 22 and carrier 151 can be integrally molded using a two-color injection molding process, where the material of the lens 22 is different from that of the carrier 151; the lens 22 is white, and the carrier 151 is black. Specifically, in one example, the lens 22 can be made of a resin with high light transmittance, while the carrier 151 can be made of a resin with low light transmittance to prevent light leakage. Alternatively, the carrier 151 can be made of a resin that does not require high light transmittance, and then coated with black paint to achieve the same light leakage prevention effect. Integrating the lens 22 and carrier 151 simplifies the assembly process and improves production efficiency.

[0060] Current voice coil motors typically have a lens mounting structure and a drive assembly mounting structure, which are then combined together. In this application, the carrier 151 is a one-piece injection-molded part. The molded carrier 151 is more stable than the structure with two combined parts, preventing damage during the operation of the image stabilization structure 15 and ensuring the normal operation of the voice coil motor 10. Furthermore, the one-piece injection molding of the carrier 151 enhances its dust and water resistance, preventing external water or dust from entering the interior of the carrier 151 and contaminating the lens 22 and other structures inside, thus affecting the camera module 100. Figure 12 The imaging effect is shown in the figure.

[0061] Furthermore, it should be noted that in some embodiments, the carrier 151 can be made of thermoplastic plastics, such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, etc.; the carrier 151 can also be made of thermosetting plastics, such as phenolic resin, urea-formaldehyde resin, etc. Using plastic materials can reduce the overall weight of the carrier 151, reduce the power consumption of the voice coil motor 10, and reduce production costs. In the embodiments of this application, the carrier 151 is made of thermoplastic plastic, wherein the first sub-part 1511 and the second sub-part 1513 can be integrally injection molded from the same type of thermoplastic plastic, or they can be integrally injection molded from different thermoplastic plastics, for example, using a two-color molding process. Of course, the carrier 151 can also be made of metal materials, such as aluminum alloy, etc. Using metal materials can enhance the support and stability of the carrier 151, and prevent damage to the carrier 151 from affecting the normal operation of the voice coil motor 10.

[0062] Please see Figure 4 In other embodiments, the carrier 151 may also be a split structure. Similarly, the carrier 151 includes a first sub-part 1511 and a second sub-part 1513. The first sub-part 1511 is used to house the lens 22, thereby forming a lens 20. The second sub-part 1513 is used to mount one of the first magnet 1531 and the first coil 1533. In this case, the first sub-part 1511 can be formed first, and then the lens 22 can be mounted on the first sub-part 1511 by threaded connection and / or adhesive application to form the lens 20. Then, the lens 20 and the second sub-part 1513 can be assembled together to form the carrier 151 carrying the lens 22.

[0063] Please see Figure 2In some embodiments, the number of driving components 153 includes two, with the two driving components 153 respectively disposed on adjacent sides of the carrier 151. Specifically, the two driving components 153 are respectively disposed in the X-axis direction and Y-axis direction of the XY plane. Each driving component 153 includes a first magnet 1531 and two first coils 1533, with the first magnet 1531 and the two first coils 1533 disposed at a distance from each other. This application only describes the case where the first magnet 1531 is disposed on the side wall 1515 of the second sub-part 1513 of the carrier 151, and the two first coils 1533 are disposed on the side wall 1113 of the base 111, as an example. The case where the two first coils 1533 are disposed on the side wall 1515 of the second sub-part 1513 of the carrier 151, and the first magnet 1531 is disposed on the side wall 1113 of the base 111, can be implemented by reference. Specifically, in one drive assembly 153, a first magnet 1531 is disposed on the side wall 1515 of the second sub-part 1513 in the X-axis direction. Correspondingly, two first coils 1533 in the drive assembly 153 are disposed on the side wall 1113 of the base 111 in the X-axis direction. In another drive assembly 153, a first magnet 1531 is disposed on the side wall 1515 of the second sub-part 1513 in the Y-axis direction. Correspondingly, two first coils 1533 in the drive assembly 153 are disposed on the side wall 1113 of the base 111 in the Y-axis direction. When the first coils 1533 are energized, they generate a driving force with the first magnet 1531. This driving force is used to drive the carrier 151 to move in the XY plane (including movement along the X-axis direction and movement in the Y-axis direction) and / or rotate around the optical axis MM1 of the lens 20 in the XY plane, thereby counteracting the shaking of the lens 20 in the X-axis direction or Y-axis direction of the XY plane, or the shaking around the optical axis MM1, to achieve image stabilization.

[0064] In other embodiments, the number of drive components 153 is one, which can be disposed on any side of the carrier 151 and on the opposite side of the focusing structure 13.

[0065] In one example, the drive assembly 153 is positioned along the X-axis of the XY plane. The drive assembly 153 also includes a first magnet 1531 and two first coils 1533, which are spaced apart from each other. The first magnet 1531 is positioned on the X-axis sidewall 1515 of the second sub-part 1513, and the two first coils 1533 are positioned on the X-axis sidewall 1113 of the base 111. When the first coils 1533 are energized, they generate a driving force with the first magnet 1531. This driving force drives the carrier 151 to move along the X-axis in the XY plane, thereby counteracting the shaking of the lens 20 in the X-axis direction of the XY plane.

[0066] In another example, the drive assembly 153 is positioned along the Y-axis of the XY plane. In this case, the drive assembly 153 also includes a first magnet 1531 and two first coils 1533, with the first magnet 1531 and the two first coils 1533 spaced apart from each other. The first magnet 1531 is positioned on the Y-axis sidewall 1515 of the second sub-part 1513, and the two first coils 1533 are positioned on the Y-axis sidewall 1113 of the base 111. When the first coils 1533 are energized, they generate a driving force with the first magnet 1531. This driving force drives the carrier 151 to move along the Y-axis in the XY plane, thereby counteracting the shaking of the lens 20 in the Y-axis direction of the XY plane.

[0067] Specifically, please refer to Figure 2 The first magnet 1531 can be disposed on the side wall 1515 of the second sub-part 1513 by means of embedding, bonding, snap-fitting, etc. The first coil 1533 can be directly disposed on the side wall 1113 of the base 111 by means of embedding, bonding, snap-fitting, threaded connection, welding, etc., and then electrically connected to the circuit board (not shown) through conductive parts. The first coil 1533 can also be formed on the circuit board and electrically connected to the circuit board, and the circuit board is disposed on the side wall 1113 of the base 111 by means of embedding, bonding, snap-fitting, threaded connection, welding, etc. The first magnet 1531 and the first coil 1533 are disposed at intervals to avoid collision and friction between the first magnet 1531 and the first coil 1533 when the carrier 131 moves along the optical axis MM1, which would cause damage to the first magnet 1531 and / or the first coil 1533 and thus affect the normal operation of the voice coil motor 10.

[0068] In some embodiments, when the first magnet 1531 is embedded in the sidewall 1515 of the second sub-part 1513, the carrier 151 and the first magnet 1531 can be integrally formed by two injection molding processes. First, injection molding is performed to form the base structure of the carrier 151 (the aforementioned integral injection molded part), which leaves mounting 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 placed in the mounting space. Then, the base structure and the first magnet 1531 are injection molded a second time to completely encapsulate the first magnet 1531 with the same material as the base structure, thereby embedding the first magnet 1531 in the sidewall 1515 of the second sub-part 1513. It should be noted that in some embodiments, the first magnet 1531 can be mounted in the mounting space using SMT (Surface Mounted Technology) surface mount technology.

[0069] In some embodiments, the first magnet 1531 may be a permanent magnet (possessing its own magnetic field), such as a neodymium iron boron magnet, a ferrite magnet, an AlNiCo magnet, etc., without limitation. When the first coil 1533 is energized, the first coil 1533 can generate a magnetic field, thereby generating a driving force between the first magnet 1531 and the first coil 1533. This 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 to achieve image stabilization.

[0070] Please see Figure 2 , Figure 6 and Figure 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 driving assembly 153, the magnetic poles of the first magnetic region 15311 and the second magnetic region 15313 are arranged in opposite directions. For example, if the magnetic pole of the first magnetic region 15311 facing the corresponding first coil 1533 is the N pole and the magnetic pole away from the corresponding first coil 1533 is the S pole, then the magnetic pole of the second magnetic region 15313 facing the corresponding first coil 1533 is the S pole and the magnetic pole away from the corresponding first coil 1533 is the N pole. As another example, if the magnetic pole of the first magnetic region 15311 facing the corresponding first coil 1533 is the S pole and the magnetic pole away from the corresponding first coil 1533 is the N pole, then the magnetic pole of the second magnetic region 15313 facing the corresponding first coil 1533 is the N pole and the magnetic pole away from the corresponding first coil 1533 is the S pole.

[0071] In one example, the first magnet 1531 can be a single, integral structure. In another example, the first magnet 1531 can be composed of multiple separate structures combined together. When the first magnet 1531 is composed of multiple separate structures combined together, the first magnetic region 15311, the second magnetic region 15313, and the non-magnetic region 15319 can be considered as three individual structures, which are combined to form the first magnet 1531; or, the first magnetic region 15311 and the non-magnetic region 15319 can be considered as one individual structure, and the second magnetic region 15313 as another individual structure, which are combined to form the first magnet 1531; or, the second magnetic region 15313 and the non-magnetic region 15319 can be considered as one individual structure, and the first magnetic region 15311 as another individual structure, which are combined to form the first magnet 1531.

[0072] Please see Figure 2 , Figure 5 and Figure 9In each drive assembly 153, two first coils 1533 can be controlled individually and interact with the first magnetic region 15311 and the second magnetic region 15313 in the corresponding first magnet 1531 respectively to apply a force to the corresponding first magnet 1531. The force is used to deflect the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range.

[0073] Please continue reading. Figure 2 , Figure 5 and Figure 9 Furthermore, in one embodiment, each driving component 153 may also include a driving chip 1535 and two position detection units 1537. The driving chip 1535 and the two first coils 1533 are electrically connected to a circuit board (which may be the aforementioned circuit board 118, or another circuit board) and are used to control the two first coils 1533 respectively. One of the two position detection units 1537 is built into the driving chip 1535 and corresponds to one of the two first coils 1533, while the other is disposed on the circuit board and corresponds to the other of the two first coils 1533. The position detection unit 1537 is used to detect the distance between the two first coils 1533 and their corresponding first magnets 1531. If the difference in distance between the two first coils 1533 and their corresponding first magnets 1531 exceeds a preset range, the driving chip 1535 controls the energizing current of at least one of the two first coils 1533 to keep the deflection of the carrier 151 around the optical axis MM of the lens 20 within a predetermined range. Please refer to... Figure 11 During the image stabilization process, if the left position detection unit 1537 detects a distance of A between the left first coil 1533 and the first magnet 1531, and the right position detection unit 1537 detects a distance of B between the right first coil 1533 and the first magnet 1531 (i.e., the average distance between the first magnetic region 15311 and the left first coil 1533 is A, and the average distance between the second magnetic region 15313 and the right first coil 1533 is B), and the difference between A and B is greater than a preset range, it indicates that the rotation of the carrier 151 around the XY plane exceeds expectations, and the shaking is relatively strong. Figure 11As shown in the left figure. At this time, the driving chip 1535 controls the current flowing through at least one of the two first coils 1533 to ensure that the deflection of the carrier 151 around the optical axis MM of the lens 20 is within a predetermined range. In one example, the driving chip 1535 can control the current applied to the right first coil 1533 to be greater than the current applied to the left first coil 1533. Therefore, the force between the right first coil 1533 and the second magnetic region 15313 is greater than the force between the left first coil 1533 and the first magnetic region 15311. The resultant force of these two forces causes the first magnet 1531 to rotate and return to a position where the difference between A and B is within the preset range, such as returning to... Figure 11 The right-hand diagram shows a state where A = B. In this state, the jitter around the optical axis MM1 in the XY plane is acceptable within the imaging domain; in other words, the camera module 100 ( Figure 12 (As shown) The images captured have good image stabilization.

[0074] In another embodiment, each drive component 153 may further include two drive chips, with the two drive chips and two first coils 1533 respectively corresponding to and electrically connected to the circuit board. Each drive chip has a built-in position detection unit for controlling the energizing current of the corresponding first coil 1533. The position detection unit 1537 is used to detect the distance between the two first coils 1533 and the corresponding first magnet 1531. If the difference between the distance between the two first coils 1533 and the corresponding first magnet 1531 exceeds a preset range, at least one of the two drive chips controls the energizing current in the corresponding first coil 1531 so that the deflection of the carrier 151 around the optical axis MM1 of the lens 20 is within a predetermined range.

[0075] Please see Figure 2 , Figure 5 and Figure 6In some embodiments, the first magnet 1531 in at least one drive assembly 153 has an irregular shape, and the thickness of the irregularly shaped first magnet 1531 relative to its two ends 15317, 15319 is greater than the thickness of the middle portion 15318 between the two ends 15317, 15319. In one example, the thicknesses of the two ends 15317, 15319 are the same and greater than the thickness of the middle portion 15318. In another example, the thicknesses of the two ends 15317, 15319 are not the same; for example, the thickness of one end 15317 is greater than the thickness of the other end 15319, or the thickness of one end 15319 is greater than the thickness of the other end 15317. In either case, the thickness of the two ends 15317, 15319 is greater than the thickness of the middle portion 15318. The thickness of the irregularly shaped first magnet 1531 at its two ends 15317 and 15319 is greater than the thickness of the middle portion 15318 between the two ends 15317 and 15319, causing the middle portion of the irregularly shaped first magnet 1531 to be concave, forming a recess. At this time, the sidewall 1515 on which the irregularly shaped first magnet 1531 is mounted can protrude towards this recess, such as... Figure 7 As shown, compared to a sidewall of the same thickness, the lens 20 can be positioned closer to the outer side of the housing 10, thereby reducing the size of the voice coil motor 10 in the X-axis or Y-axis direction, and consequently reducing the size of the camera module 100. Figure 12 The dimensions shown are on the XY plane, enabling miniaturization.

[0076] In the case where there are two drive components 153, in one example, the first magnet 1531 of one of the two drive components 153 may be an irregularly shaped structure, while the first magnet 1531 of the other drive component 153 may be a non-irregularly shaped structure, such as a rectangular structure. For example, the first magnet 1531 disposed on the sidewall 1515 in the X-axis direction may be an irregularly shaped structure, while the first magnet 1531 disposed on the sidewall 1515 in the Y-axis direction may be a rectangular structure. In this case, the sidewall 1515 in the X-axis direction where the irregularly shaped first magnet 1531 is mounted may protrude toward the recess on the first magnet 1531 in the X-axis direction. Compared to the sidewall of 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, and consequently reducing the size of the camera module 100. Figure 12As shown, the size of the camera module 100 in the XY plane is miniaturized. For example, the first magnet 1531 on the sidewall 1515 in the Y-axis direction is an irregularly shaped structure, while the first magnet 1531 on the sidewall 1515 in the X-axis direction is a rectangular structure. In this case, the sidewall 1515 in the Y-axis direction where the irregularly shaped first magnet 1531 is mounted can protrude towards the recess on the first magnet 1531 in the Y-axis direction. Compared to a sidewall of 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 Y-axis direction, and consequently reducing the size of the camera module 100. Figure 12 The dimensions shown are on the XY plane, enabling miniaturization.

[0077] In another example, the first magnets 1531 in both drive components 153 are irregularly shaped. Specifically, the first magnet 1531 on the sidewall 1515 in the X-axis direction is irregularly shaped, and the first magnet 1531 on the sidewall 1515 in the Y-axis direction is also irregularly shaped. In this case, the sidewall 1515 in the X-axis direction where the irregularly shaped first magnet 1531 is mounted can protrude into the recess on the first magnet 1531 in the X-axis direction, and the sidewall 1515 in the Y-axis direction where the irregularly shaped first magnet 1531 is mounted can protrude into the recess on the first magnet 1531 in the Y-axis direction. Compared to the sidewall of 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 and Y-axis directions, and thus minimizing the size of the camera module 100. Figure 12 The dimensions shown are on the XY plane, enabling miniaturization.

[0078] Please refer to the following: Figure 2 , Figure 5 and Figure 9 In some embodiments, the sidewall 1515 of the carrier 151, on which the first magnet 1531 (including irregularly shaped structures and non-irregularly shaped structures such as rectangular structures) is mounted, may include a plastic body and a magnetic metal sheet 17 embedded in the plastic body, with the first magnet 1531 adsorbed onto the magnetic metal sheet 17. In this case, the plastic body and the magnetic metal sheet 17 can be first formed into an integral carrier 151 through an insert molding process, and then the first magnet 1531 can be adsorbed onto the magnetic metal sheet 17. It can be seen that this type of carrier 151 simplifies the subsequent installation of the first magnet 1531 and improves the assembly efficiency of the voice coil motor 10.

[0079] 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 energized first coil 1533 to generate driving force. The voice coil motor 10 can adjust the movement distance and direction of the carrier 151 in the X-axis and Y-axis directions, as well as the angle and direction of rotation around the optical axis MM1 in the XY plane, by adjusting the magnitude and direction of the current flowing through the first coil 1533.

[0080] Please see Figure 2 , Figure 5 and Figure 9 The drive assembly 153 may further include a return element 1539, which is disposed at the bottom of the first magnet 1531 and provides a restoring force when the first coil 1533 is de-energized. This restoring force is used to drive the carrier 151 back to the center position. Specifically, the return element 1539 may be a metal sheet, which may be installed at the bottom of the first magnet 1531 by means of gluing, welding, etc. The shape of the return element 1539 matches 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. This driving force drives the carrier 151 to move in the XY plane (including movement in the X direction and movement in the Y direction) and / or rotate around the optical axis MM1 in the plane, so as to counteract the shaking of the lens 20 in the XY plane along the X-axis direction, along the Y-axis direction, and in the rotation direction around the optical axis MM1, thereby achieving image stabilization. After image stabilization is achieved, if the first coil 1533 is de-energized, the setting of the recovery component 1539 can ensure that the carrier 151 can return to the center position (the initial position before image stabilization) to prepare for the next image stabilization, thereby improving the efficiency of the next image stabilization.

[0081] Please see Figure 2 In some embodiments, the voice coil motor 10 may also include a fixing structure 17. The fixing structure 17 is mounted on the carrier 131 and is used to limit the movement of the carrier 151 along the optical axis MM1 toward the object side of the lens 20.

[0082] Specifically, the fixing structure 17 is disposed in the receiving space 115 of the housing 11, and the fixing structure 17 is detachably connected to the carrier 131 to prevent the carrier 151 from moving along the optical axis MM1 toward the object side of the lens 20 when the carrier 151 moves in the XY plane or rotates around the optical axis MM1 in the XY plane for jitter compensation, thus deviating from the position of sharp focus, thereby ensuring that the camera module 100 ( Figure 12 The imaging effect shown is better.

[0083] Please continue reading. Figure 2In some embodiments, the fixing structure 17 may include a blocking member 171 and a connecting member 173 extending from the edge (periphery) of the blocking member 171 toward the carrier 131. The blocking member 171 is supported on the top wall 1516 of the second sub-part 1513. Correspondingly, a plurality of connecting members 1317 are provided on the outer side of the side wall 1313 of the carrier 131, and each connecting member 173 is connected to a corresponding connecting member 1317 to restrict the movement of the carrier 151 toward the object side of the lens 20 along the optical axis MM1. It should be noted that in some embodiments, there may be multiple connecting members 1317, which are provided on the outer side of one or more side walls 1313 of the carrier 131. Correspondingly, there may also be multiple connecting members 173, which are provided on the edge (periphery) of the blocking member 171. The connecting members 1317 and connecting members 173 may be one-to-one or many-to-one. For example, one coupling 1317 corresponds to one connector 173; or multiple couplings 1317 correspond to one connector 173; or multiple couplings 1317 correspond to multiple connectors 173.

[0084] Please see Figure 2 In some embodiments, the blocking member 171 is also provided with a through hole 175 corresponding to the lens 20, so that the first sub-part 1511 of the carrier 151 can pass through the through hole 175 into the blocking member 171, so that external light can pass through the light transmission hole 117 and the through hole 175 in sequence and enter the lens 20 of the first sub-part 1511.

[0085] Please see Figure 12 This application also provides a camera module 100. The camera module 100 may include a voice coil motor 10 and a lens 20 as described in any of the above embodiments, the lens 20 being mounted on a carrier 151 (…). Figure 2 Show).

[0086] Please combine Figure 2In some embodiments, the lens 20 may contain one or more lenses 22, all of which are disposed in the first sub-section 1511. These lenses 22 can mutually correct and filter incident ambient light, thereby filtering stray light (e.g., infrared light) layer by layer as ambient light passes through the lens 20, thus improving the imaging effect of the camera module 100. It should be noted that in some embodiments, the lenses 22 may be spherical lenses, aspherical lenses, or freeform lenses, etc., without limitation. The material of the lenses 22 may be plastic or glass, or a mixture of plastic and glass, without limitation. The lenses 22 may be fixedly disposed within the first sub-section 1511; they may also move along the optical axis MM1 within the first sub-section 1511 (e.g., by additionally providing actuators to drive the movement of the corresponding lenses 22) to achieve zoom or fine focusing, thereby improving the imaging effect of the camera module 100.

[0087] Please see Figure 2 and Figure 12 When assembling the camera module 100, firstly, one of the second coil 1333 or the second magnet 1331 is disposed on the carrier 131, and the other is disposed on the base 111. Then, the carrier 131, which carries one of the second coil 1333 and the second magnet 1331, is disposed in the base 111, which carries the other of the second coil 1333 and the second magnet 1331. Next, the first magnet 1531 is disposed on the second sub-part 1513, and the first coil 1533 is disposed on the base 111. Then, the carrier 151, which has the first magnet 1531 mounted on it, is disposed in the carrier 131, wherein the lens 22 can be integrally formed with the first sub-part 1511 of the carrier 151. Afterwards, the fixing structure 17 is installed on the carrier 131 to restrict the movement of the carrier 151 along the optical axis MM1 toward the object side of the lens 20. Finally, the outer shell 113 is placed on the base 111 to complete the assembly.

[0088] When the camera module 100 is focusing, the second coil 1333 of the driving device 133 is energized to generate an actuating force together with the second magnet 1331. The actuating force drives the carrier 131 to move along the optical axis MM1, thereby moving the image stabilization structure 15 and the lens 20 disposed in the image stabilization structure 15 together along the optical axis MM1 to achieve the focusing function.

[0089] When the camera module 100 performs image stabilization, if the lens 20 moves along the X-axis or Y-axis or rotates around the optical axis MM1 in the XY plane, the first coil 1533 of the drive assembly 153 can be energized to interact with the first magnet 1531 and generate a driving force. This driving force drives the carrier 151 to move in the opposite direction along the X-axis or Y-axis or rotate in the opposite direction around the optical axis MM1 in the XY plane, thereby compensating for the movement offset of the lens 20 on the X-axis or Y-axis or the rotation offset of the lens 20 around the optical axis MM1 in the XY plane, thus achieving image stabilization. For example, if the lens 20 moves 5mm in the positive direction along the X-axis, the first coil 1533 of the drive assembly 153 can be energized to generate a magnetic field, which interacts with the magnetic field of the first magnet 1531 to generate a driving force. This driving force drives the carrier 151 to move 5mm in the opposite direction along the X-axis, thereby compensating for the movement offset of the lens 20 along the X-axis and ultimately achieving image stabilization.

[0090] Please see Figure 2 , Figure 5 and Figure 9 In the camera module 100 of this application, the two first coils 1533 in the image stabilization structure 15 can be controlled independently and interact with the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531, respectively, to apply a force to the corresponding first magnet 1531. This force can keep the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range. Therefore, even if the carrier 151 deflects around the optical axis MM1 of the lens 20 in the plane that compensates for the offset on the plane perpendicular to the optical axis MM1, the force can pull the carrier 151 back in the opposite direction, keeping the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within the predetermined range, thus ensuring the image stabilization effect and thereby ensuring image quality.

[0091] Please see Figure 13 The electronic device 1000 according to the embodiments of this application includes a camera module 100 and a body 200 as described in any of the above embodiments. The camera module 100 is mounted on the body 200.

[0092] Specifically, the electronic device 1000 can be a mobile phone, tablet computer, camera, personal digital assistant, wearable device, smart robot, smart vehicle, etc., among which wearable devices include smart bracelets, smartwatches, smart glasses, etc. The camera module 100 can be installed on the main body 200 or installed inside the main body 200, without limitation.

[0093] Please see Figure 2 , Figure 5 and Figure 13In the electronic device 1000 of this application, the two first coils 1533 in the image stabilization structure 15 can be controlled individually and interact with the first magnetic region 15311 and the second magnetic region 15313 of the corresponding first magnet 1531, respectively, to apply a force to the corresponding first magnet 1531. This force can keep the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within a predetermined range. Therefore, even if the carrier 151 deflects around the optical axis MM1 of the lens 20 in the plane that compensates for the offset on the plane perpendicular to the optical axis MM1, the force can pull the carrier 151 back in the opposite direction, keeping the deflection of the carrier 151 around the optical axis MM1 of the lens 20 within the predetermined range, thereby ensuring the image stabilization effect and thus ensuring image quality.

[0094] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two or three, unless otherwise explicitly specified.

[0096] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A voice coil motor, characterized in that, include: case; and An image stabilization structure is mounted on the housing and includes a carrier and a drive assembly. The carrier is used to mount a lens, and the drive assembly is used to drive the carrier to move in the XY plane and to drive the carrier to rotate around the optical axis of the lens in the XY plane. The XY plane is a plane perpendicular to the optical axis. The drive assembly includes a first magnet and two first coils. The first magnet and the two first coils are correspondingly arranged. One of the first magnet and the first coil is mounted on the carrier, and the other is mounted on the housing. The first magnet includes a first magnetic region and a second magnetic region with opposite magnetic poles. The two first coils can be controlled independently and interact with the first magnetic region and the second magnetic region of the corresponding first magnet to apply a force to the corresponding first magnet. The force is used to keep the deflection of the carrier around the optical axis of the lens within a predetermined range during the process of the drive assembly driving the carrier to compensate for the offset in the XY plane.

2. The voice coil motor according to claim 1, characterized in that, The voice coil motor also includes a circuit board mounted on the housing; the drive assembly also includes: Two driving chips are provided, and the two driving chips and the two first coils are respectively corresponding to and electrically connected to the circuit board. Each driving chip has a built-in position detection unit for controlling the energizing current of the corresponding first coil. The position detection unit is used to detect the distance between the two first coils and the corresponding first magnet. If the difference between the distance between the two first coils and the corresponding first magnet exceeds a preset range, at least one of the two driving chips controls the energizing current in the corresponding first coil to keep the deflection of the carrier around the optical axis of the lens within a predetermined range.

3. The voice coil motor according to claim 1, characterized in that, The voice coil motor also includes a circuit board mounted on the housing; the drive assembly also includes: A driver chip, wherein the driver chip and the two first coils are electrically connected to the circuit board and are used to control the two first coils respectively; and Two position detection units are provided. One of the two position detection units is built into the driving chip and corresponds to one of the two first coils. The other is disposed on the circuit board and corresponds to the other of the two first coils. The position detection units are used to detect the distance between the two first coils and the corresponding first magnets. If the difference in distance between the two first coils and the corresponding first magnet exceeds a preset range, the driving chip controls the energizing current of at least one of the two first coils to keep the deflection of the carrier around the optical axis of the lens within a predetermined range.

4. The voice coil motor according to any one of claims 1-3, characterized in that, The number of drive components includes two, and the two drive components are respectively located on adjacent sides of the carrier.

5. The voice coil motor according to claim 4, characterized in that, The first magnet further includes a non-magnetic region connecting the first magnetic region and the second magnetic region; the first magnet is a single-piece structure; or the first magnet is composed of multiple separate structures combined together.

6. The voice coil motor according to any one of claims 1-3, characterized in that, The first magnet has an irregular shape, and the thickness at both ends is greater than the thickness of the middle part between the two ends.

7. The voice coil motor according to claim 6, characterized in that, The opposite ends of the first magnet with the irregular shape have the same thickness, and the middle part has the same thickness.

8. The voice coil motor according to claim 1, characterized in that, The housing includes a base and an outer shell, with the outer shell covering and mounted on the base; the first magnet is mounted on the carrier, and two first coils are mounted on the base; the side wall of the carrier where the first magnet is mounted includes a plastic body and a magnetic metal sheet embedded in the plastic body, with the first magnet adsorbed onto the magnetic metal sheet.

9. The voice coil motor according to claim 1, characterized in that, The driving component also includes a return element disposed at the bottom of the irregularly shaped first magnet, which provides a restoring force when the first coil is de-energized, the restoring force being used to drive the carrier back to the center position.

10. The voice coil motor according to claim 1, characterized in that, The carrier is an integral structure and includes a first sub-part and a second sub-part connected to each other. The first sub-part is used to house the lens of the lens, and the second sub-part is used to mount the first magnet or the first coil.

11. A camera module, characterized in that, include: The voice coil motor according to any one of claims 1-10; and The lens is mounted on the carrier of the image stabilization structure.

12. An electronic device, characterized in that, include: ontology; and The camera module of claim 11, wherein the camera module is mounted on the body.

Images