Camera module and its driving device

Abstract

The present application discloses an imaging module and its driving device. The driving device for the imaging module includes an outer frame, an inner carrier, a first driving component, and at least one pair of focusing magnetic members. The inner carrier is movably received within the outer frame and is configured to mount an optical lens; the inner carrier has a first contact position, a second contact position, and a third contact position; in a preset arrangement direction, the first contact position and the second contact position are located on the same side of the first driving component, and the third contact position is located on the side of the first driving component opposite to the first contact position and the second contact position; the first contact position, the second contact position, and the third contact position form a triangular positional relationship; in the preset arrangement direction, the resultant force of the magnetic attraction force between the inner carrier and the outer frame is biased towards the side where the first contact position and the second contact position are located.

Description

Technical Field

[0001] The present application relates to the field of imaging, and more particularly, to an imaging module and its driving device. Background Art

[0002] The imaging module is an essential component in mobile phones. In recent years, miniaturization and thinning are the inevitable development trends of mobile phones. The design of the imaging module also needs to meet the characteristics of small size to adapt to the trend of mobile phone miniaturization.

[0003] However, while the imaging module is required to meet the demand for small size, it also needs to meet the requirements of various functions such as optical image stabilization and autofocus. To meet the requirements of various functions such as optical image stabilization and autofocus, corresponding components need to be configured. In theory, there will be more and more components, the structure of the imaging module becomes complex, and it is difficult to control the overall size and overall weight of the imaging module within a certain range, which contradicts the demand for small size of the imaging module. Summary of the Invention

[0004] The main advantage of the present application is to provide an imaging module and its driving device, wherein the driving device for the imaging module can reduce its height dimension while achieving optical image stabilization and autofocus, thereby reducing the height dimension of the imaging module.

[0005] Another advantage of the present application is to provide an imaging module and its driving device, wherein the driving device for the imaging module can improve its stability by arranging the installation position of the optical lens.

[0006] Another advantage of the present application is to provide an imaging module and its driving device, wherein the driving device for the imaging module adopts a single-layer rolling support component, which can reduce the height dimension of the driving device for the imaging module to a certain extent compared with the double-layer support component.

[0007] Another advantage of the present application is to provide an imaging module and its driving device, wherein the magnets and coils of the driving component of the driving device for the imaging module are arranged in the horizontal direction, which can reduce the height dimension of the driving device for the imaging module to a certain extent compared with the arrangement of the magnets and coils in the optical axis direction.

[0008] Another advantage of the present application is to provide an imaging module and its driving device, wherein the lower surface of the driving component for driving the optical lens to perform autofocus of the driving device for the imaging module is at a relatively low height, which can not only reduce the overall height dimension of the driving device, but also increase the stroke of the focusing inner carrier.

[0009] According to one aspect of the present application, there is provided a driving device for an imaging module, which includes:

[0010] Base;

[0011] Outer frame, movably received within the base;

[0012] Inner carrier, movably received within the outer frame and configured to mount an optical lens, the optical lens defining an optical axis and an optical axis direction;

[0013] First driving assembly, configured to drive the inner carrier to move relative to the outer frame along the optical axis direction;

[0014] Second driving assembly, configured to drive the outer frame and drive the inner carrier to move relative to the base along a first direction and a second direction, wherein the first direction and the second direction are respectively perpendicular to the optical axis direction, and the first direction and the second direction are perpendicular to each other;

[0015] First supporting assembly, fixedly supporting the movement of the inner carrier along the optical axis direction; and,

[0016] Second supporting assembly, rollably supporting the movement of the outer frame along the first direction and the second direction.

[0017] In an embodiment of the driving device for a camera module according to the present application, the driving device has a lens mounting cavity, the lens mounting cavity penetrates the driving device in the optical axis direction, and the center of the lens mounting cavity is located on the optical axis of the optical lens.

[0018] In an embodiment of the driving device for a camera module according to the present application, the first driving assembly includes a first magnet and a first coil, the first coil and the first magnet are opposite to each other in the first direction; the second driving assembly includes a first-direction driving assembly and a second-direction driving assembly, the first-direction driving assembly includes a second magnet and a second coil, the second coil and the second magnet are opposite to each other in the first direction; the second-direction driving assembly includes a third magnet and a third coil, the third coil and the third magnet are opposite to each other in the second direction.

[0019] In an embodiment of the driving device for a camera module according to the present application, the inner carrier includes a first carrier sidewall, a second carrier sidewall, a third carrier sidewall, and a fourth carrier sidewall; the outer frame includes a first frame sidewall, a second frame sidewall, a third frame sidewall, and a fourth frame sidewall, and the base includes a first base sidewall, a second base sidewall, a third base sidewall, and a fourth base sidewall; the first carrier sidewall, the first frame sidewall, and the first base sidewall are opposite to each other along the first direction; the second carrier sidewall, the second frame sidewall, and the second base sidewall are opposite to each other along the second direction; the third carrier sidewall, the third frame sidewall, and the third base sidewall are opposite to each other along the first direction; wherein, the first driving component is disposed between the first carrier sidewall and the first frame sidewall, or between the first carrier sidewall and the first base sidewall; the one-way driving component is disposed between the third frame sidewall and the third base sidewall; the two-way driving component is disposed between the second frame sidewall and the second base sidewall.

[0020] In an embodiment of the driving device for a camera module according to the present application, the first magnet is disposed on the first carrier sidewall, the second magnet is disposed on the third frame sidewall, the third magnet is disposed on the second frame sidewall, the first coil is disposed on the first frame sidewall, the second coil is disposed on the third base sidewall, and the third coil is disposed on the second base sidewall.

[0021] In an embodiment of the driving device for a camera module according to the present application, the first magnet is disposed on the first carrier sidewall, the second magnet is disposed on the third frame sidewall, the third magnet is disposed on the second frame sidewall, the first coil is disposed on the first base sidewall, the second coil is disposed on the third base sidewall, and the third coil is disposed on the second base sidewall.

[0022] In an embodiment of the driving device for a camera module according to the present application, the bottom surface of the first magnet is lower than the bottom surface of the second magnet and / or the bottom surface of the third magnet; the bottom surface of the first coil is lower than the bottom surface of the second coil and / or the bottom surface of the third coil.

[0023] In an embodiment of the driving device for a camera module according to the present application, the first driving component and the first supporting component are disposed on the same side, wherein the first supporting component is fixed to the first frame sidewall, and the first carrier sidewall is supported by the first supporting component.

[0024] In an embodiment of the driving device for a camera module according to the present application, the second support assembly includes at least one ball, at least one lateral guiding groove is provided between the outer frame and the base, and the ball is rollably disposed in the lateral guiding groove; the lateral guiding groove includes a first lateral groove and a second lateral groove, the length direction of the first lateral groove is consistent with the first direction, and the length direction of the second lateral groove is consistent with the second direction.

[0025] According to another aspect of the present application, there is provided a driving device for a camera module, which includes:

[0026] An outer frame;

[0027] An inner carrier, which is movably received in the outer frame and is configured to mount an optical lens, and the optical lens defines an optical axis and an optical axis direction;

[0028] A first driving assembly, which is configured to drive the inner carrier to move relative to the outer frame along the optical axis direction, and includes a first coil and a first magnet arranged oppositely; the first magnet is mounted on one side of the inner carrier; and

[0029] At least one pair of focusing magnetic attracting members, which are arranged on the side of the first coil facing away from the first magnet and have magnetic permeability, so that they attract each other with the first magnet;

[0030] Wherein, the inner carrier has a first contact position, a second contact position and a third contact position; in a preset arrangement direction, the first contact position and the second contact position are located on the same side of the first driving assembly, and the third contact position is located on the side of the first driving assembly opposite to the first contact position and the second contact position;

[0031] In the preset arrangement direction, the resultant magnetic attraction force between the inner carrier and the outer frame tends to the side where the first contact position and the second contact position are located.

[0032] In an embodiment of the driving device for a camera module according to the present application, the resultant magnetic attraction force between the focusing magnetic attracting member and the first magnet tends to the side where the first contact position and the second contact position are located.

[0033] In an embodiment of the driving device for a camera module according to the present application, the center of the focusing magnetic attracting member is offset relative to the center of the first magnet in the preset arrangement direction towards the first contact position and the second contact position.

[0034] In an embodiment of the driving device for a camera module according to the present application, the driving device for the camera module further includes a frame circuit board, and the frame circuit board is disposed outside the outer frame; the first coil is fixed to the inner side of the frame circuit board and electrically connected to the frame circuit board; at least one of the focusing magnetic members is fixed to the outer side of the frame circuit board; a structural reinforcement plate is disposed on a portion of the frame circuit board that is biased toward the third contact position.

[0035] In an embodiment of the driving device for a camera module according to the present application, the focusing magnetic member has at least one first empty slot, and the center of the first empty slot is biased toward the side where the third contact position is located with respect to the center of the focusing magnetic member.

[0036] In an embodiment of the driving device for a camera module according to the present application, the focusing magnetic member has a second empty slot, and in the thickness direction of the focusing magnetic member, the second empty slot corresponds to the central region of the first magnet.

[0037] In an embodiment of the driving device for a camera module according to the present application, the size of the second empty slot in the optical axis direction is greater than the optical focusing driving stroke.

[0038] In an embodiment of the driving device for a camera module according to the present application, the second empty slot and the first empty slot are the same slot or communicate with each other.

[0039] In an embodiment of the driving device for a camera module according to the present application, a structural reinforcement plate is disposed on a portion of the frame circuit board corresponding to the first empty slot and / or the second empty slot.

[0040] In an embodiment of the driving device for a camera module according to the present application, the driving device for the camera module further includes a frame circuit board and a first position sensing element, the frame circuit board is disposed outside the outer frame, the first position sensing element is fixed to the inner side of the frame circuit board and electrically connected to the frame circuit board; at least one of the focusing magnetic members is fixed to the outer side of the frame circuit board; the orthographic projection of the first position sensing element in the thickness direction of the frame circuit board is completely within the first empty slot, and the orthographic projection of the first position sensing element in the thickness direction of the frame circuit board is completely within the second empty slot.

[0041] In an embodiment of the driving device for a camera module according to the present application, the distance between the orthographic projection of the first position sensing element in the thickness direction of the frame circuit board and the wall of the first empty slot is greater than or equal to 0.3 mm; the distance between the orthographic projection of the first position sensing element in the thickness direction of the frame circuit board and the wall of the second empty slot is greater than or equal to 0.3 mm.

[0042] In an embodiment of the driving device for a camera module according to the present application, the driving device for the camera module further includes a first support assembly and a magnetic attraction magnet. At least one component of the first support assembly abuts against the first contact position and / or the second contact position. Among them, the component of the first support assembly that abuts against the first contact position and / or the component that abuts against the second contact position has magnetic permeability. The magnetic attraction magnet is disposed on the inner carrier and is opposite to the component of the first support assembly that abuts against the first contact position and / or the component that abuts against the second contact position.

[0043] In an embodiment of the driving device for a camera module according to the present application, the magnetic attraction magnet is embedded in the inner carrier.

[0044] In an embodiment of the driving device for a camera module according to the present application, the distance between the center of the magnetic attraction magnet and the first contact position in the optical axis direction is greater than or equal to one-fourth and less than or equal to three-fourths of the distance between the first contact position and the second contact position in the optical axis direction.

[0045] In an embodiment of the driving device for a camera module according to the present application, the driving device for the camera module further includes a base, a second driving assembly, and at least one anti-shake magnetic attraction member. The outer frame is movably received in the base. The second driving assembly is configured to drive the outer frame and drive the inner carrier to move relative to the base in a first direction and a second direction. Among them, the first direction and the second direction are respectively perpendicular to the optical axis direction, and the first direction and the second direction are perpendicular to each other. The second driving assembly includes a first-direction driving component and a second-direction driving component. The first-direction driving component includes a second magnet and a second coil. The second coil and the second magnet are opposite to each other in the first direction. The second-direction driving component includes a third magnet and a third coil. The third coil and the third magnet are opposite to each other in the second direction. The anti-shake magnetic attraction member is located on the side of the second coil facing away from the second magnet and / or on the side of the third coil facing away from the third magnet.

[0046] In an embodiment of the driving device for a camera module according to the present application, at least one of the magnetic members for anti-shake is provided with an opening on a side adjacent to the second magnet and / or the third magnet.

[0047] According to another aspect of the present application, there is also provided a camera module, which includes:

[0048] The driving device for a camera module as described above;

[0049] An optical lens; and

[0050] An image sensor assembly, and the optical lens is disposed on the light-sensing path of the image sensor assembly.

[0051] Through the understanding of the subsequent description and the drawings, further objects and advantages of the present application will be fully reflected.

[0052] These and other objects, features, and advantages of the present application are fully reflected through the following detailed description, drawings, and claims. Brief Description of the Drawings

[0053] By describing the embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present application will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0054] Figure 1 The perspective view schematic diagram of the driving device for a camera module according to the embodiment of the present application is illustrated.

[0055] Figure 2 The exploded view schematic diagram of the driving device for a camera module according to the embodiment of the present application is illustrated.

[0056] Figure 3 The disassembly view schematic diagram of the driving device for a camera module according to the embodiment of the present application is illustrated.

[0057] Figure 4 The partial disassembly view schematic diagram of the driving device for a camera module according to the embodiment of the present application is illustrated.

[0058] Figure 5 The partial perspective view schematic diagram of the driving device for a camera module according to the embodiment of the present application is illustrated.

[0059] Figure 6 Another partial view schematic diagram of the driving device for a camera module according to the embodiment of the present application is illustrated.

[0060] Figure 7 Illustrates another partial schematic diagram of the driving device for a camera module according to an embodiment of the present application.

[0061] Figure 8 Illustrates another partial disassembled schematic diagram of the driving device for a camera module according to an embodiment of the present application.

[0062] Figure 9 Illustrates another partial disassembled schematic diagram of the driving device for a camera module according to an embodiment of the present application.

[0063] Figure 10 Illustrates a cross-sectional schematic diagram of the driving device for a camera module according to an embodiment of the present application.

[0064] Figure 11 Illustrates another cross-sectional schematic diagram of the driving device for a camera module according to an embodiment of the present application.

[0065] Figure 12 Illustrates a perspective schematic diagram of a modified embodiment of the driving device for a camera module according to an embodiment of the present application.

[0066] Figure 13 Illustrates an exploded schematic diagram of a modified embodiment of the driving device for a camera module according to an embodiment of the present application.

[0067] Figure 14 Illustrates a disassembled schematic diagram of a modified embodiment of the driving device for a camera module according to an embodiment of the present application.

[0068] Figure 15 Illustrates a partial perspective schematic diagram of a modified embodiment of the driving device for a camera module according to an embodiment of the present application.

[0069] Figure 16 Illustrates a partial cross-sectional schematic diagram of a modified embodiment of the driving device for a camera module according to an embodiment of the present application.

[0070] Figure 17 Illustrates another partial cross-sectional schematic diagram of a modified embodiment of the driving device for a camera module according to an embodiment of the present application.

[0071] Figure 18 Illustrates another partial cross-sectional schematic diagram of a modified embodiment of the driving device for a camera module according to an embodiment of the present application.

[0072] Figure 19The figure shows a partial exploded view schematic diagram of a modified embodiment of a driving device for a camera module according to an embodiment of the present application.

[0073] Figure 20 The figure shows another partial exploded view schematic diagram of a modified embodiment of a driving device for a camera module according to an embodiment of the present application.

[0074] Figure 21 The figure shows a partial perspective view schematic diagram of a modified embodiment of a driving device for a camera module according to an embodiment of the present application.

[0075] Figure 22 The figure shows a block diagram schematic diagram of a camera module according to an embodiment of the present application. Detailed implementation manners

[0076] Next, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein.

[0077] While the camera module is required to meet the demand for a small volume, it also needs to meet the demands for various functions such as optical image stabilization and autofocus. To meet the demands for various functions such as optical image stabilization and autofocus, corresponding components need to be configured. In theory, the number of components will increase, the structure of the camera module will become complex accordingly, and it will be difficult to control the overall size and overall weight of the camera module within a certain range, which is contradictory to the demand for a small volume of the camera module.

[0078] The present application starts from the perspective of the overall structural design and component layout of the driving device, and reduces the height dimension of the driving device as much as possible, thereby reducing the height dimension of the camera module.

[0079] Specifically, in the present application, by adopting a single-layer rolling support assembly to support the anti-shake carrier, that is, the outer frame, compared with adopting a double-layer support assembly, it is possible to reduce the height dimension of the driving device for the camera module to a certain extent. And in the present application, by setting lateral guiding grooves in different directions, even if a single-layer rolling support assembly is adopted, the support stability can be ensured.

[0080] Based on this, the present application provides a driving device for a camera module, which includes: a base, an outer frame, an inner carrier, a first driving component, a second driving component, a first supporting component, and a second supporting component. The outer frame is movably received within the base; the inner carrier is movably received within the outer frame and is configured to mount an optical lens, and the optical lens defines an optical axis and an optical axis direction; the first driving component is configured to drive the inner carrier to move relative to the outer frame along the optical axis direction; the second driving component is configured to drive the outer frame and drive the inner carrier to move relative to the base along a first direction and a second direction, wherein the first direction and the second direction are respectively perpendicular to the optical axis direction, and the first direction and the second direction are perpendicular to each other; the first supporting component fixedly supports the movement of the inner carrier along the optical axis direction; the second supporting component rollably supports the movement of the outer frame along the first direction and the second direction.

[0081] The present application also provides a camera module and its driving device, which includes an outer frame, an inner carrier, a first driving component, and at least a pair of focusing magnetic members. The inner carrier is movably received within the outer frame and is configured to mount an optical lens; the inner carrier has a first contact position, a second contact position, and a third contact position; in a preset arrangement direction, the first contact position and the second contact position are located on the same side of the first driving component, and the third contact position is located on the side of the first driving component opposite to the first contact position and the second contact position; the first contact position, the second contact position, and the third contact position form a triangular position relationship; in the preset arrangement direction, the center of the magnetic field between the inner carrier and the outer frame is biased towards the side where the first contact position and the second contact position are located.

[0082] After introducing the basic principle of the present application, various non-limiting embodiments of the present application will be specifically introduced with reference to the drawings.

[0083] As Figures 1 to 22 shown, the camera module 100 according to an embodiment of the present application and the driving device 1 for the camera module 100 are illustrated.

[0084] Specifically, as Figure 22 shown, the camera module 100 includes an optical lens 2, a driving device 1 for the camera module 100, and a photosensitive component 3. The driving device 1 for the camera module 100 is mounted on the photosensitive component 3. The optical lens 2 is mounted on the driving device 1 for the camera module 100 and is located on the light-sensitive path of the photosensitive component 3.

[0085] The driving device 1 for the camera module 100 is used to drive the optical lens 2 to move, so as to achieve the functions of autofocus and optical image stabilization.

[0086] The photosensitive component 3 includes a chip circuit board, a photosensitive chip, and at least one electronic component. The photosensitive surface of the photosensitive chip faces the optical lens 2 to receive the light emitted from the optical lens 2. In a specific example, the photosensitive chip is fixed on one side of the chip circuit board facing the optical lens 2. At least one of the electronic components can be implemented as passive electronic devices such as capacitors and resistors, or active electronic devices such as diodes and memory chips. At least one of the electronic components can be disposed on one side of the chip circuit board facing the optical lens 2. In a specific example, the photosensitive chip is electrically connected to the chip circuit board through at least one lead.

[0087] In some examples of the present application, the camera module 100 further includes a filter component, and the filter component is disposed on the light sensing path of the photosensitive component 3, so that the camera module 100 can filter unnecessary stray light (for example, infrared rays) through the filter component. For example, the filter component is disposed between the optical lens 2 and the photosensitive component 3. In a specific example, the filter component includes a bracket and a filter element. The bracket is supported on the chip circuit board, and the filter element is fixed on the bracket.

[0088] Such as Figure 1 and Figure 2 and Figure 12 and Figure 13As shown, the driving device 1 for the camera module 100 includes a housing 10, an outer frame 20, an inner carrier 30, a first driving component 40, a second driving component 50, a first supporting component 60, and a second supporting component 70. The outer frame 20 is received in the housing 10. The inner carrier 30 is received in the outer frame 20 and is configured to mount the optical lens 2 therein. The inner carrier 30 is further configured to be adapted to move relative to the outer frame 20 along a set optical axis direction D. The outer frame 20 is configured to be adapted to move relative to the housing 10 along a first direction D1 and a second direction D2 and drive the inner carrier 30 to move along the first direction D1 and the second direction D2. The first driving component 40 is configured to drive the inner carrier 30 to move relative to the outer frame 20 along the optical axis direction D for autofocusing. The second driving component 50 is configured to drive the outer frame 20 to move relative to the housing 10 along the first direction D1 and the second direction D2, and drive the inner carrier 30 and the optical lens 2 to move along the first direction D1 and the second direction D2 through the outer frame 20 for optical image stabilization. The first direction D1 and the second direction D2 are respectively perpendicular to the optical axis direction D, and the first direction D1 and the second direction D2 are perpendicular to each other. The first supporting component 60 is used to guide the inner carrier 30 to move along the optical axis direction D. The second supporting component 70 is used to guide the outer frame 20 to move along the first direction D1 and the second direction D2.

[0089] In this application, the optical axis direction D is defined by the optical lens 2. The optical axis direction D of the optical lens 2 refers to the direction in which the optical lens 2 conducts light. The height direction of the camera module 100 and the height direction of the driving device 1 for the camera module 100 are consistent with the optical axis direction D.

[0090] It is worth mentioning that this application adopts an inner autofocus and outer optical image stabilization design, that is, the first driving component 40 and the inner carrier 30 for autofocusing are arranged inside the second driving component 50 and the outer frame 20 for optical image stabilization. Such a design helps to improve the autofocus accuracy, the flexibility of the component layout for optical image stabilization, and the accuracy of optical image stabilization. The inner and outer in this application are relative to the optical axis of the optical lens 2. The direction close to the optical axis is called inner, and the direction relatively far from the optical axis is called outer.

[0091] Specifically, the focusing function has certain requirements for both focusing speed and focusing accuracy. The key factor to achieve a good focusing effect is to be able to quickly and accurately adjust the position of the lens to achieve a clear image. In this application, the inner carrier 30 that moves during autofocus is arranged inside the outer frame 20 that moves during optical image stabilization. During autofocus, only by moving the inner carrier 30 can the optical lens 2 be driven. This makes the weight of the components that the first driving component 40 for autofocus needs to drive relatively small. In this way, the first driving component 40 for autofocus can adjust the position of the optical lens 2 relatively quickly. Correspondingly, the optical lens 2 can respond more quickly to the driving of the first driving component 40 for autofocus, thereby achieving fast focusing.

[0092] That the weight of the components that the first driving component 40 for autofocus needs to drive is relatively small means that the weight of the components that the first driving component 40 for autofocus needs to drive is smaller than the weight of the components that the second driving component 50 for optical image stabilization needs to drive. Specifically, during autofocus, only by moving the inner carrier 30 can the optical lens 2 be driven; during optical image stabilization, the second driving component 50 needs to drive the outer frame 20, the inner carrier 30, and the first driving component 40 to drive the optical lens 2 to move. In other words, the components that the first driving component 40 for autofocus needs to drive mainly include the inner carrier 30 and the optical lens 2; the components that the second driving component 50 for optical image stabilization needs to drive not only include the inner carrier 30 and the optical lens 2, but also include the outer frame 20 and the first driving component 40. Therefore, the weight of the components that the first driving component 40 for autofocus needs to drive is significantly smaller than the weight of the components that the second driving component 50 for optical image stabilization needs to drive.

[0093] Furthermore, the focusing movement stroke of the optical lens 2 is relatively large. The first driving component 40 for autofocus only needs to move the inner carrier 30 to drive the optical lens 2 to move, which helps to achieve a longer movement stroke of the optical lens 2. Even further, benefiting from the relatively small weight of the components that the first driving component 40 needs to drive, the first driving component 40 can more precisely control the movement of the optical lens 2, which helps to improve the focusing accuracy.

[0094] The second driving component 50 for performing optical image stabilization can be designed to be disposed around the outer periphery of the outer frame 20, which enables a more flexible arrangement of the second driving component 50 for performing optical image stabilization. And the anti-shake movement stroke is smaller than the focusing movement stroke, and the second driving component 50 for performing optical image stabilization can more easily control the movement of the optical lens 2, which helps to improve the optical image stabilization accuracy and reduce the situations of overcompensation or undercompensation.

[0095] In an embodiment of the present application, the specific forms and structures of the housing 10, the outer frame 20, and the inner carrier 30 are designed according to requirements and are not limited by the present application.

[0096] In an embodiment of the present application, as Figure 2 , Figure 3 , Figure 4 , Figure 13 and Figure 14 shown, the housing 10 includes a base 11 and a top cover 12. Among them, the top cover 12 and the base 11 are buckled with each other to form a receiving cavity 1001 located between the base 11 and the top cover 12. The base 11 and the top cover 12 can be fixed by glue between the base 11 and the top cover 12.

[0097] Correspondingly, more specifically, in this embodiment, the outer frame 20 is configured to be adapted to move relative to the base 11 in a first direction D1 and a second direction D2 and drive the inner carrier 30 to move in the first direction D1 and the second direction D2. The second driving component 50 is configured to drive the outer frame 20 to move relative to the base 11 in the first direction D1 and the second direction D2, and drive the inner carrier 30 and the optical lens 2 to move in the first direction D1 and the second direction D2 through the outer frame 20 to perform optical image stabilization.

[0098] In this embodiment, the base 11 includes a base bottom wall 111 and a base peripheral wall 112. Among them, the base peripheral wall 112 extends upward from the base bottom wall 111. The base peripheral wall 112 includes a base first side wall 1121, a base second side wall 1122, a base third side wall 1123, and a base fourth side wall 1124. The base first side wall 1121 and the base third side wall 1123 are opposite to each other in the first direction D1. The base second side wall 1122 and the base fourth side wall 1124 are opposite to each other in the second direction D2. The base 11 has a base through hole 1101, and the base through hole 1101 penetrates the base 11 in the optical axis direction D.

[0099] The top cover 12 includes a top cover top wall 121 and a top cover peripheral wall 122. Among them, the top cover peripheral wall 122 extends downward from the top cover top wall 121. The top cover 12 has a top cover through hole 1201, and the top cover through hole 1201 penetrates the top cover 12 in the optical axis direction D.

[0100] It should be understood that the top cover 12 may not be provided with the top cover peripheral wall 122, and only the top cover top wall 121 is provided. When the top cover top wall 121 covers the base peripheral wall 112, it encloses the accommodation cavity 1001 with the base 11.

[0101] The outer frame 20 is movably accommodated in the accommodation cavity 1001 of the outer housing 10. More specifically, the outer frame 20 is movably provided in the base 11.

[0102] As Figures 4 to 7 and Figures 15 to 20 shown, the outer frame 20 includes a frame first side wall 21, a frame second side wall 22, a frame third side wall 23, and a frame fourth side wall 24. Among them, the frame first side wall 21 and the frame third side wall 23 are opposite to each other in the first direction D1, and the frame second side wall 22 and the frame fourth side wall 24 are opposite to each other in the second direction D2. The outer frame 20 has a frame through slot 201, and the frame through slot 201 penetrates the outer frame 20 in the optical axis direction D. The outer frame 20 has a frame upper surface 202 and a frame lower surface 203. The frame upper surface 202 and the frame lower surface 203 are opposite to each other in the optical axis direction D.

[0103] The frame upper surface 202 includes a frame first upper side, a frame second upper side, a frame third upper side, and a frame fourth upper side. Among them, the frame first upper side and the frame third upper side are opposite to each other in the first direction D1, and the frame second upper side and the frame fourth upper side are opposite to each other in the second direction D2. A frame first upper corner is formed at the junction of the frame first upper side and the frame second upper side; a frame second upper corner is formed at the junction of the frame second upper side and the frame third upper side; a frame third upper corner is formed at the junction of the frame third upper side and the frame fourth upper side; a frame fourth upper corner is formed at the junction of the frame fourth upper side and the frame first upper side.

[0104] The lower surface 203 of the frame includes a first lower side of the frame, a second lower side of the frame, a third lower side of the frame, and a fourth lower side of the frame. Among them, the first lower side of the frame and the third lower side of the frame are opposite in the first direction D1, and the second lower side of the frame and the fourth lower side of the frame are opposite in the second direction D2. A first lower corner portion of the frame is formed at the junction of the first lower side of the frame and the second lower side of the frame; a second lower corner portion of the frame is formed at the junction of the second lower side of the frame and the third lower side of the frame; a third lower corner portion of the frame is formed at the junction of the third lower side of the frame and the fourth lower side of the frame; a fourth lower corner portion of the frame is formed at the junction of the fourth lower side of the frame and the first lower side of the frame.

[0105] The inner carrier 30 is movably received in the frame through slot 201 of the outer frame 20.

[0106] The inner carrier 30 includes a first side wall 31 of the carrier, a second side wall 32 of the carrier, a third side wall 33 of the carrier, and a fourth side wall 34 of the carrier. The first side wall 31 of the carrier and the third side wall 33 of the carrier are opposite in the first direction D1, and the second side wall 32 of the carrier and the fourth side wall 34 of the carrier are opposite in the second direction D2. The inner carrier 30 has a carrier through hole 301. The carrier through hole 301 penetrates the inner carrier 30 in the optical axis direction D. The inner carrier 30 has an upper surface 302 of the carrier and a lower surface 303 of the carrier. The upper surface 302 of the carrier and the lower surface 303 of the carrier are opposite in the optical axis direction D.

[0107] The first side wall 1121 of the base, the first side wall 21 of the frame, and the first side wall 31 of the carrier are on the same side of the driving device 1 for the camera module 100 and are opposite in the first direction D1; the second side wall 1122 of the base, the second side wall 22 of the frame, and the second side wall 32 of the carrier are on the same side of the driving device 1 for the camera module 100 and are opposite in the second direction D2; the third side wall 1123 of the base, the third side wall 23 of the frame, and the third side wall 33 of the carrier are on the same side of the driving device 1 for the camera module 100 and are opposite in the first direction D1; the fourth side wall 1124 of the base, the fourth side wall 24 of the frame, and the fourth side wall 34 of the carrier are on the same side of the driving device 1 for the camera module 100 and are opposite in the second direction D2.

[0108] The upper surface 302 of the carrier includes a first upper side of the carrier, a second upper side of the carrier, a third upper side of the carrier, and a fourth upper side of the carrier. The first upper side of the carrier and the third upper side of the carrier are opposite in the first direction D1. The second upper side of the carrier and the fourth upper side of the carrier are opposite in the second direction D2. An upper corner portion of the first carrier is formed at the junction of the first upper side of the carrier and the second upper side of the carrier; an upper corner portion of the second carrier is formed at the junction of the second upper side of the carrier and the third upper side of the carrier; an upper corner portion of the third carrier is formed at the junction of the third upper side of the carrier and the fourth upper side of the carrier; an upper corner portion of the fourth carrier is formed at the junction of the fourth upper side of the carrier and the first upper side of the carrier.

[0109] In the Figures 1 to 11 illustrated embodiment of the present application, the driving device 1 for the camera module 100 further includes a support member 80. The support member 80 is located on the outer frame 20. The support member 80 has a support member through hole 801. The support member through hole 801 penetrates the support member 80 in the optical axis direction D.

[0110] The driving device 1 for the camera module 100 has a lens mounting cavity 101, and the lens mounting cavity 101 penetrates the driving device 1 for the camera module 100 in the optical axis direction D. The optical lens 2 is mounted in the lens mounting cavity 101 of the driving device 1 for the camera module 100.

[0111] In the embodiment of the present application, the top cover through hole 1201, the support member through hole 801, the carrier through hole 301, and the base through hole 1101 together form the lens mounting cavity 101. The inner diameters of the top cover through hole 1201, the support member through hole 801, the carrier through hole 301, and the base through hole 1101 are all greater than or equal to the outer diameter of the optical lens 2. Correspondingly, theoretically, when the optical lens 2 is driven, the bottom surface of the optical lens 2 can be flush with the bottom surface of the base 11, or even lower than the bottom surface of the base 11.

[0112] It is worth mentioning that in the present application, it can be designed that when the optical lens 2 is mounted on the driving device 1 for the camera module 100, the center of the lens mounting cavity 101 of the driving device 1 for the camera module 100 is located on the optical axis of the optical lens 2.

[0113] In an embodiment of the present application, it is designed that the center of the lens mounting cavity 101 coincides with the center of the driving device 1 for the camera module 100, or it is designed that the center of the lens mounting cavity 101 is located on the longitudinal central axis of the driving device 1 for the camera module 100, so that the optical lens 2 is located in the middle of the driving device 1 for the camera module 100, to reduce the instability caused by excessive deviation of the center of the optical lens 2. Wherein, the length extension direction of the longitudinal central axis of the driving device 1 for the camera module 100 is consistent with the optical axis direction D, and the center of the driving device 1 for the camera module 100 is located on the longitudinal central axis of the driving device 1 for the camera module 100. It should be understood that there are errors during the assembly of components, and an error within 1 mm is allowed. Accordingly, here, the coincidence of the center of the lens mounting cavity 101 with the center of the driving device 1 for the camera module 100 means that: the distance between the center of the lens mounting cavity 101 and the center of the driving device 1 for the camera module 100 in the direction perpendicular to the optical axis direction D is greater than or equal to 0 and less than or equal to 1 mm. Accordingly, the distance between the center of the optical lens 2 and the center of the driving device 1 for the camera module 100 in the direction perpendicular to the optical axis direction D is greater than or equal to 0 and less than or equal to 1 mm; or, the distance between the center of the driving device 1 for the camera module 100 and the optical axis in the direction perpendicular to the optical axis direction D is greater than or equal to 0 and less than or equal to 1 mm.

[0114] In an embodiment of the present application, the centers of the top cover through hole 1201, the support member through hole 801, the frame through slot 201, the carrier through hole 301, and the base through hole 1101 are all located on the optical axis of the optical lens 2, so as to improve the stability of the driving device 1 for the camera module 100. In the top view of the driving device 1 for the camera module 100 equipped with the optical lens 2, it is shown that: the center of the driving device 1 for the camera module 100 coincides with the center of the optical lens 2. The design that the center of the driving device 1 for the camera module 100 is located on the optical axis of the optical lens 2 helps the driving device 1 for the camera module 100 to maintain position balance and driving balance after installing the optical lens 2, and reduces the instability caused by excessive deviation of the center of the optical lens 2.

[0115] In the present application, it is possible to design such that the center and the center of gravity of the optical lens 2 are both located on the optical axis. When the optical lens 2 is mounted on the driving device 1 for the camera module 100, the center of gravity of the driving device 1 for the camera module 100 is not located on the optical axis of the optical lens 2. Specifically, since the outer frame 20 and the inner carrier 30 need to mount driving components, the center of gravity of the outer frame 20 and the inner carrier 30 is biased towards the side where the driving components are provided, so that there is a certain distance between the center of gravity of the driving device 1 for the camera module 100 and the optical axis of the optical lens 2.

[0116] The first driving component 40 is mounted on the outside of the inner carrier 30. Specifically, the first driving component 40 is mounted between the inner carrier 30 and the outer frame 20 or mounted between the inner carrier 30 and the base 11. The second driving component 50 is mounted on the outside of the outer frame 20. Specifically, the second driving component 50 is mounted between the outer frame 20 and the base 11.

[0117] More specifically, the first driving component 40 is mounted between the carrier side wall 31 of the inner carrier 30 and the frame side wall 21 of the outer frame 20, or between the carrier side wall 31 of the inner carrier 30 and the base side wall 1121 of the base 11. The second driving component 50 includes a first-direction driving component 51 and a second-direction driving component 52. The first-direction driving component 51 is configured to drive the outer frame 20 to move relative to the base 11 along the first direction D1, and drive the inner carrier 30 and the optical lens 2 to move along the first direction D1 through the outer frame 20. The second-direction driving component 52 is configured to drive the outer frame 20 to move relative to the base 11 along the second direction D2, and drive the inner carrier 30 and the optical lens 2 to move along the second direction D2 through the outer frame 20. The first-direction driving component 51 is mounted between the frame third side wall 23 of the outer frame 20 and the base third side wall 1123 of the base 11. The second-direction driving component 52 is mounted between the frame second side wall 22 of the outer frame 20 and the base second side wall 1122 of the base 11.

[0118] In an embodiment of the present application, the driving of the inner carrier 30 and the outer frame 20 is achieved through the cooperation of a magnet and a coil. Correspondingly, the first driving component 40 includes a first coil 41 and a first magnet 42. The first-direction driving component 51 includes a second coil 511 and a second magnet 512. The second-direction driving component 52 includes a third coil 521 and a third magnet 522.

[0119] It is worth mentioning that in the present application, as Figure 16As shown, the magnet and coil of the driving component are arranged in the lateral direction. Compared with the arrangement of the magnet and coil in the optical axis direction D, the height dimension of the driving device 1 for the camera module 100 can be reduced to a certain extent. The lateral direction refers to the direction perpendicular to the optical axis direction D. In this application, the lateral direction is consistent with the horizontal direction.

[0120] Specifically, the first driving component 40 has a moving magnet structure. The moving magnet structure means that under the interaction of the coil and the magnet, the magnet moves, and then drives the component fixed to the magnet to move. The first coil 41 and the first magnet 42 are arranged on the first side of the inner carrier 30, that is, the side where the side wall 31 of the carrier is located, and are opposite to the first coil 41 in the first direction D1, and are located between the inner carrier 30 and the outer frame 20. More specifically, the first magnet 42 is installed on the outer surface of the side wall 31 of the carrier. The first coil 41 is installed on the inner surface of the side wall 21 of the frame.

[0121] In a variant embodiment of the present application, the first magnet 42 is installed on the outer surface of the side wall 31 of the carrier, and the first coil 41 is installed on the inner surface of the side wall 1121 of the base.

[0122] Furthermore, it can be designed that at least part of the first magnet 42 is embedded in the side wall 31 of the inner carrier 30 of the inner carrier 30, and / or at least part of the first coil 41 is embedded in the side wall 21 of the outer frame 20 of the outer frame 20, so as to reduce the lateral space occupied by the first driving component 40, and further reduce the lateral dimension of the driving device 1 for the camera module 100, and further reduce the lateral dimension of the camera module 100.

[0123] In an example of the present application, the inner carrier 30 has a carrier first groove 304, and the carrier first groove 304 is recessed on the outer surface of the side wall 31 of the carrier. At least part of the first magnet 42 is embedded in the carrier first groove 304. The outer frame 20 has a frame first groove 204, and the frame first groove 204 is recessed on the inner surface of the side wall 21 of the frame. At least part of the first coil 41 is embedded in the frame first groove 204.

[0124] In the present application Figures 12 to 21 In the illustrated embodiment, the driving device 1 for the camera module 100 further includes a frame circuit board 25, and the frame circuit board 25 is arranged outside the outer frame 20; the first coil 41 is fixed to the inner side of the frame circuit board 25 and electrically connected to the frame circuit board 25. Specifically, in the present application Figures 12 to 21In the illustrated embodiment, the frame circuit board 25 is disposed on the frame side wall 21 of the outer frame 20 and the frame four side walls 24 adjacent to the frame side wall 21; at least a part of the first coil 41 is embedded in the frame one groove 204 of the outer frame 20, and the frame one groove 204 is a through groove.

[0125] The one-way driving assembly 51 is of a moving magnet structure. The second coil 511 and the second magnet 512 are disposed on the third side of the outer frame 20, that is, the side where the frame three side walls 23 are located, and are opposite to each other in the first direction D1, and are located between the outer frame 20 and the base 11. Specifically, the second magnet 512 is mounted on the outer surface of the frame three side walls 23. The second coil 511 is mounted on the inner surface of the base three side walls 1123.

[0126] More specifically, it can be designed such that at least a part of the second magnet 512 is embedded in the frame three side walls 23 of the outer frame 20, and / or at least a part of the second coil 511 is embedded in the base three side walls 1123 of the base 11, so as to reduce the lateral space occupied by the one-way driving assembly 51, thereby reducing the lateral dimension of the driving device 1 for the camera module 100, and further reducing the lateral dimension of the camera module 100.

[0127] In an example of the present application, as Figure 7 shown, the frame three side walls 23 have a frame two groove 205, and the frame two groove 205 is recessed on the outer surface of the frame three side walls 23. At least a part of the second magnet 512 is embedded in the frame two groove 205. As Figure 4 shown, the base 11 has a base one groove 1102, and the base one groove 1102 is recessed on the inner surface of the base three side walls 1123. At least a part of the second coil 511 is embedded in the base one groove 1102.

[0128] The two-way driving assembly 52 is of a moving magnet structure. The third coil 521 and the third magnet 522 are disposed on the second side of the outer frame 20, that is, the side where the frame two side walls 22 are located, and are opposite to each other in the second direction D2, and are located between the outer frame 20 and the base 11. Specifically, the third magnet 522 is mounted on the outer surface of the frame two side walls 22. The third coil 521 is mounted on the inner surface of the base two side walls 1122.

[0129] More specifically, it can be designed such that at least a part of the third magnet 522 is embedded in the second sidewalls 22 of the outer frame 20, and / or at least a part of the third coil 521 is embedded in the second sidewalls 1122 of the base 11, so as to reduce the lateral space occupied by the two-way driving assembly 52, thereby reducing the lateral dimension of the driving device 1 for the camera module 100, and further reducing the lateral dimension of the camera module 100.

[0130] In an example of the present application, the second sidewalls 22 of the frame have a third groove 206 of the frame, and the third groove 206 of the frame is recessed on the outer surface of the second sidewalls 22 of the frame. At least a part of the third magnet 522 is embedded in the third groove 206 of the frame. The base 11 has a second groove 1103 of the base, and the second groove 1103 of the base is recessed on the inner surface of the second sidewalls 1122 of the base. At least a part of the third coil 521 is embedded in the second groove 1103 of the base.

[0131] As described above, in the present application, the first driving assembly 40, the one-way driving assembly 51, and the two-way driving assembly 52 are all moving magnet structures. Correspondingly, the first magnet 42 is installed on the inner carrier 30; the second magnet 512 and the third magnet 522 are installed on the outer frame 20; the first coil 41 is installed on the outer frame 20 or the base 11; the second coil 511 and the third coil 521 are installed on the base 11; such an arrangement facilitates subsequent wiring of the first coil 41, the second coil 511, and the third coil 521, and realizes electrical conduction of the first coil 41, the second coil 511, and the third coil 521. Specifically, on the one hand, the installation carriers of the first coil 41 (i.e., the outer frame 20 or the base 11) are close to or the same as the installation carriers of the second coil 511 and the third coil 521 (i.e., the base 11), making the wiring of the first coil 41, the second coil 511, and the third coil 521 more convenient. On the other hand, the outer frame 20 and the base 11 are closer to the outside of the driving device 1 for the camera module 100 relative to the inner carrier 30, facilitating the outward extension of the conductive members for electrical conduction to the first coil 41, the second coil 511, and the third coil 521.

[0132] It should be understood that the installation positions of the first coil 41 and the first magnet 42 can be interchanged; the installation positions of the second coil 511 and the second magnet 512 can be interchanged; the positions of the third coil 521 and the third magnet 522 can be interchanged.

[0133] In the present application, the first magnet 42 and the first coil 41 are separately used to achieve autofocus drive and are not used for optical image stabilization; the second magnet 512 and the second coil 511, and the third magnet 522 and the third coil 521 are separately used for optical image stabilization and are not used for autofocus; in this way, the first magnet 42, the second magnet 512, and the third magnet 522 do not interfere with each other; the first coil 41, the second coil 511, and the third coil 521 do not interfere with each other.

[0134] In the present application, at least one side of the driving device 1 for the camera module 100 is not provided with a driving component. Correspondingly, at least one side of the camera module 100 is not provided with a driving component. In this way, when the camera module 100 is installed in a terminal mobile device, if the camera module 100 is provided with other camera modules, the side of the camera module 100 of the present application without a driving component can be adjacent to the other camera modules to avoid magnetic interference between the multiple camera modules.

[0135] In an embodiment of the present application, the fourth side of the driving device 1 for the camera module 100 is not provided with a driving component. Correspondingly, when the camera module 100 is installed in a terminal mobile device, if the camera module 100 is provided with other camera modules, the fourth side of the camera module 100 of the present application can be adjacent to the other camera modules. The fourth side of the driving device 1 for the camera module 100 is consistent with the fourth side of the camera module 100 and is the same as the side where the four side walls 34 of the carrier, the four side walls 24 of the frame, and the four side walls 1124 of the base are located.

[0136] In addition, in the present application, the first driving component 40, the one-way driving component 51, and the two-way driving component 52 are respectively arranged on different sides of the driving device 1 for the camera module 100, that is, the first side, the third side, and the second side. On the one hand, it can, to a certain extent, avoid interference between the first driving component 40, the one-way driving component 51, and the two-way driving component 52, which helps to ensure the driving stability of each; on the other hand, it increases the layout space of each magnet and makes the overall magnetic field more evenly distributed, which helps to improve the anti-shake and focusing effects.

[0137] Specifically, the second magnet 512 and the third magnet 522 for implementing anti-shake driving and the first magnet 42 for implementing focusing driving are arranged on different sides of the driving device 1 of the camera module 100. This can not only avoid magnetic interference but also provide sufficient layout space for each magnet, that is, the first magnet 42, the second magnet 512, and the third magnet 522, which can increase the magnetic field strength. Moreover, the overall magnetic field of the first magnet 42, the second magnet 512, and the third magnet 522 is relatively evenly distributed, which helps to improve the anti-shake and focusing effects.

[0138] It is worth mentioning that in an embodiment of the present application, the height of the lower surface of the first driving component 40 of the driving device 1 for the camera module 100 to drive the optical lens 2 for autofocusing is relatively low. Specifically, the bottom surface of the first magnet 42 of the first driving component 40 is lower than the bottom surface of the second magnet 512 of the second driving component 50 and / or the bottom surface of the third magnet 522; the bottom surface of the first coil 41 of the first driving component 40 is lower than the bottom surface of the second coil 511 and / or the third coil 521 of the second driving component 50. In this way, it is not only beneficial to reduce the height dimension of the driving device 1 of the camera module 100, thereby reducing the height dimension of the camera module 100, but also can increase the focusing movement stroke, thereby improving the focusing function of the camera module 100.

[0139] It should be understood that the larger the dimensions of the first magnet 42 and the first coil 41 in the height direction of the driving device 1 of the camera module 100, the greater the driving force that the first driving component 40 can provide and the longer the driving stroke. However, increasing the dimensions of the first magnet 42 and the first coil 41 in the height direction of the driving device 1 of the camera module 100 may cause an increase in the height dimension of the driving device 1 of the camera module 100. In the present application, by extending the first magnet 42 and the first coil 41 downward to increase the dimensions of the first magnet 42 and the first coil 41 in the height direction of the driving device 1 of the camera module 100, the focusing movement stroke is increased, thereby improving the focusing function of the camera module 100. Further, it can also avoid increasing the height dimension of the driving device 1 of the camera module 100. Moving the first magnet 42 and the first coil 41 downward as a whole can also reduce the height dimension of the driving device 1 of the camera module 100.

[0140] Accordingly, extending the first magnet 42 and the first coil 42 downward or moving the first magnet 42 and the first coil 42 downward as a whole will ultimately result in: the bottom surface of the first magnet 42 of the first driving assembly 40 being lower than the bottom surface of the second magnet 512 of the second driving assembly 50 and / or the bottom surface of the third magnet 522; the bottom surface of the first coil 41 of the first driving assembly 40 being lower than the bottom surface of the second coil 511 and / or the third coil 521 of the second driving assembly 50.

[0141] In an embodiment of the present application, as Figure 2 and Figure 13 shown, the driving device 1 for the camera module 100 further includes at least one yoke 91 for increasing the magnetic field strength and preventing magnetic leakage. The yoke 91 is located on the side of each magnet away from the coil.

[0142] In the present application, the driving device 1 for the camera module 100 includes three yokes 91, namely a first yoke 911, a second yoke 912, and a third yoke 913. The first yoke 911 is opposite to the first magnet 42 in this first direction and is located on the side of the first magnet 42 away from the first coil 41 to increase the magnetic field strength of the focusing magnet, that is, the first magnet 42, and reduce magnetic leakage. The second yoke 912 is opposite to the second magnet 512 in this first direction and is located on the side of the second magnet 512 away from the second coil 511 to increase the magnetic field strength of the one-way anti-shake magnet, that is, the second magnet 512, and reduce magnetic leakage. The third yoke 913 is opposite to the third magnet 522 in this second direction and is located on the side of the third magnet 522 away from the third coil 521 to increase the magnetic field strength of the two-way anti-shake magnet, that is, the third magnet 522, and reduce magnetic leakage.

[0143] Optionally, the first yoke 911 is embedded in the inner carrier 30, and the second yoke 912 and the third yoke 913 are embedded in the outer frame 20. More specifically, the first yoke 911 is embedded in the carrier side wall 31 of the inner carrier 30, the second yoke 912 is embedded in the frame second side wall 22 of the outer frame 20, and the third yoke 913 is embedded in the frame third side wall 23 of the outer frame 20. It should be understood that the first yoke 911, the second yoke 912, and the third yoke 913 can also be arranged in a non-embedded manner.

[0144] In an embodiment of the present application, as Figure 2 and Figure 13As shown, the driving device 1 for the camera module 100 further includes a magnetic attraction member 92. At least one of the magnetic attraction members 92 is located on a side of the first coil 41 away from the first magnet 42. The magnetic attraction member 92 has magnetic permeability and can attract the first magnet 42. The attraction force between the magnetic attraction member 92 and the first magnet 42 causes the inner carrier 30 and the outer frame 20 to approach each other. The inner carrier 30 is supported by the first support assembly 60, which can improve the driving stability and prevent the inner carrier 30 and the outer frame 20 from falling.

[0145] As Figure 2 shown, the magnetic attraction member 92 can be embedded in the outer frame 20. More specifically, the magnetic attraction member 92 is embedded in the frame side wall 21 of the outer frame 20.

[0146] In another embodiment of the present application, the magnetic attraction member 92 can also be embedded in the base 11. More specifically, the magnetic attraction member 92 is embedded in the base side wall 1121 of the base 11 so that the magnetic attraction member 92 and the first magnet 42 are opposite to each other in the horizontal direction. The attraction force between the magnetic attraction member 92 and the first magnet 42 causes the inner carrier 30 and the base 11 to approach each other. The first support assembly 60 is clamped between the inner carrier 30 and the base side wall 1121 under the action of the attraction force between the magnetic attraction member 92 and the first magnet 42. Of course, the outer frame 20 can be clamped between the inner carrier 30 and the base side wall 1121.

[0147] It is worth mentioning that, in one embodiment of the present application, the second magnetic yoke 912, the third magnetic yoke 913 and the magnetic attraction member 92 are integrally connected and have an integral structure. In another embodiment of the present application, the second magnetic yoke 912, the third magnetic yoke 913 and the magnetic attraction member 92 are separately connected and have a split structure.

[0148] Furthermore, in another embodiment of the present application, the magnetic attraction member 92 can also be embedded in the base 11. More specifically, the magnetic attraction member 92 is embedded in the base bottom wall 111 of the base 11 so that the magnetic attraction member 92 and the second magnet 512 and the third magnet 522 are opposite to each other in the height direction. The attraction force between the magnetic attraction member 92 and the second magnet 512 and the third magnet 522 causes the outer frame 20 and the base 11 to approach each other. The second support assembly 70 is clamped between the outer frame 20 and the base bottom wall 111 under the action of the attraction force between the magnetic attraction member 92 and the second magnet 512 and the third magnet 522.

[0149] Further, in an embodiment of the present application, the magnetic attracting member 92 may also be embedded in the base 11. More specifically, the magnetic attracting member 92 is embedded in the second side wall 1122 and the third side wall 1123 of the base 11, so that the magnetic attracting member 92 is opposite to the second magnet 512 and the third magnet 522 in the horizontal direction respectively. The second support assembly 70 is clamped between the outer frame 20 and the bottom wall 111 of the base by the attraction between the magnetic attracting member 92 and the second magnet 512 and the third magnet 522.

[0150] In the present application, the magnetic attracting member 92 used to attract the first magnet 41 to make the outer frame 20 and the inner carrier 30 approach each other is defined as the focusing magnetic attracting member 9210, and the magnetic attracting member 92 used to attract the second magnet 512 and / or the third magnet 522 to make the outer frame 20 and the bottom wall 111 of the base approach each other is defined as the anti-shake magnetic attracting member 9220. Accordingly, the magnetic attracting member 92 includes a focusing magnetic attracting member 9210 and an anti-shake magnetic attracting member 9220.

[0151] In an embodiment of the present application, as Figure 19 shown, the driving device 1 for the camera module 100 includes at least one of the focusing magnetic attracting members 9210. The focusing magnetic attracting member 9210 is located on the side of the first coil 41 away from the first magnet 42. The focusing magnetic attracting member 9210 has magnetic permeability and can attract the first magnet 42. The attraction between the focusing magnetic attracting member 9210 and the first magnet 42 makes the inner carrier 30 and the outer frame 20 approach each other. The inner carrier 30 is supported by the first support assembly 60, which can improve the driving stability and prevent the inner carrier 30 and the outer frame 20 from falling.

[0152] At least one of the focusing magnetic attracting members is disposed on the outer frame 20. In the Figures 12 to 21 embodiment where the frame circuit board 25 is disposed on the outer frame 20 as shown, at least one of the focusing magnetic attracting members 9210 can be disposed on the outer frame 20 in a manner of being fixed to the frame circuit board 25. The frame circuit board 25 corresponds to the first coil 41 and the first magnet 42 in the first direction D1. Specifically, at least one of the focusing magnetic attracting members 9210 can be fixed to the outside of the frame circuit board 25. The attraction between the magnetic attracting member 92 and the first magnet 42 makes the inner carrier 30 be adsorbed on the side of the outer frame 20 where the magnetic attracting member 92 is disposed.

[0153] In another embodiment of the present application, the magnetic member 9210 for focusing can also be embedded in the base 11. More specifically, the magnetic member 9210 for focusing is embedded in the side wall 1121 of the base of the base 11, so that the magnetic member 92 is opposite to the first magnet 42 in the horizontal direction. Due to the attraction between the magnetic member 9210 for focusing and the first magnet 42, the inner carrier 30 and the base 11 approach each other, the outer frame 20 clamped between the base 11 and the inner carrier 30 approaches the inner carrier 30, and the first support assembly 60 is clamped between the inner carrier 30 and the side wall 1121 of the base under the action of the attraction between the magnetic member 92 and the first magnet 42.

[0154] In an embodiment of the present application, the driving device 1 for the camera module 100 includes at least one of the magnetic members 9220 for anti-shake. The magnetic member 9220 for anti-shake has magnetic permeability and can attract the second magnet 512 and / or the third magnet 522. The attraction between the magnetic member 9220 for anti-shake and the second magnet 512 and / or the third magnet 522 causes the outer frame 20 and the base 11 to approach each other. The outer frame 20 is supported by the second support assembly 70, which can improve the driving stability and prevent the outer frame 20 from falling.

[0155] At least one of the magnetic members 9220 for anti-shake can be embedded in the base 11. More specifically, the magnetic member 9220 for anti-shake is embedded in the second side wall 1122 and / or the third side wall 1123 of the base 11, so that the magnetic member 9220 for anti-shake is opposite to the second magnet 512 and / or the third magnet 522 in the horizontal direction. Due to the attraction between the magnetic member 9220 for anti-shake and the second magnet 512 and / or the third magnet 522, the second support assembly 70 is clamped between the outer frame 20 and the bottom wall 111 of the base.

[0156] In another embodiment of the present application, as Figure 19 shown, the magnetic member 9220 for anti-shake is embedded in the bottom wall 111 of the base 11, so that the magnetic member 9220 for anti-shake is opposite to the second magnet 512 and / or the third magnet 522 in the height direction. Due to the attraction between the magnetic member 92 and the second magnet 512 and / or the third magnet 522, the outer frame 20 and the base 11 approach each other, and the second support assembly 70 is clamped between the outer frame 20 and the bottom wall 111 of the base under the action of the attraction between the magnetic member 92 and the second magnet 512 and / or the third magnet 522.

[0157] AsFigure 2 and Figure 13 As shown in Figure 13 , the driving device 1 for the camera module 100 further includes a first position sensing element 951, a second position sensing element 952, and a third position sensing element 953. The first position sensing element 951 is adjacent to the first driving assembly 40 and is used to measure the position change of the inner carrier 30; the second position sensing element 952 is adjacent to the one-way driving assembly 51 and is used to measure the position change of the outer frame 20 in the first direction D1; the third position sensing element 953 is adjacent to the two-way driving assembly 52 and is used to measure the position change of the outer frame 20 in the second direction D2.

[0158] In an example of the present application, the first position sensing element 951 is opposite to the first magnet 42 and can be disposed in the first coil 41; the second position sensing element 952 is opposite to the second magnet 512 and can be disposed in the second coil 511; the third position sensing element 953 is opposite to the third magnet 522 and can be disposed in the third coil 521.

[0159] The first position sensing element 951, the second position sensing element 952, and the third position sensing element 953 can be a Hall sensor, an inductive encoder chip in cooperation with a capacitor, or a TMR.

[0160] In an embodiment of the present application, the first support assembly 60 and the second support assembly 70 are used to provide a guiding and supporting effect on the movement of the inner carrier 30 and the outer frame 20, so that the inner carrier 30 and the outer frame 20 can move more smoothly.

[0161] In an embodiment of the present application, the first support assembly 60 is a fixed support assembly, that is, fixedly installed inside the driving device 1 for the camera module 100. When the inner carrier 30 moves, the first support assembly 60 does not move. Correspondingly, the first support assembly 60 fixedly supports the movement of the inner carrier 30 along the optical axis direction D.

[0162] It can be designed to dispose the first support assembly 60 on the side where the first driving assembly 40 is located. In this way, the acting point of the force generated by the first driving assembly 40 is closer to the first support assembly 60, thereby reducing the overturning moment generated during focusing. The moment of the inner carrier 30 tilting or shifting is smaller, so that the inner carrier 30 is not prone to tilt during the focusing process, thereby ensuring the clarity of the image and the accuracy of focusing. And because the tilt of the inner carrier 30 is reduced, the first driving assembly 40 can respond to the focusing instruction faster and achieve fast and accurate focusing.

[0163] Accordingly, in an embodiment of the present application, both the first driving assembly 40 and the first supporting assembly 60 are disposed on the first side of the inner carrier 30, that is, the side where the side wall 31 of the carrier is located.

[0164] Specifically, in one example, as Figure 4 and Figure 15 shown, the first supporting assembly 60 is disposed between the inner carrier 30 and the outer frame 20, and is located between the side wall 31 of the carrier and the side wall 21 of the frame. Accordingly, the first supporting assembly 60 is disposed on the inner side surface of the outer frame 20. A longitudinal guide groove 230 is provided between the inner carrier 30 and the outer frame 20, and the longitudinal guide groove 230 extends along the optical axis direction D. The first supporting assembly 60 can be selectively tightly fitted with the longitudinal guide groove 230, that is, closely fitted, or loosely fitted with the longitudinal guide groove 230, that is, fitted with a certain degree of mobility.

[0165] Specifically, in another example, the first supporting assembly 60 is disposed between the inner carrier 30 and the peripheral wall 112 of the base, for example, between the side wall 31 of the carrier and the side wall 1121 of the base. Accordingly, the first supporting assembly 60 is disposed on the inner side surface of the base 11. A longitudinal guide groove 230 is provided between the inner carrier 30 and the base 11, and the longitudinal guide groove 230 extends along the optical axis direction D. The first supporting assembly 60 can be selectively tightly fitted with the longitudinal guide groove 230, that is, closely fitted, or loosely fitted with the longitudinal guide groove 230, that is, fitted with a certain degree of mobility.

[0166] In an embodiment of the present application, the first supporting assembly 60 is implemented as a guide rod 610. Accordingly, the first supporting assembly 60 includes at least one guide rod 610, and the length extension direction of the guide rod 610 is consistent with the optical axis direction D. The length of the guide rod 610 is greater than the moving stroke of the inner carrier 30 along the optical axis direction D, so that the inner carrier 30 can be supported within the moving stroke. Further, the guide rod 610 has good linearity, which can further avoid the occurrence of the tilting of the inner carrier 30.

[0167] In the optical axis direction D, the guide rod 610 is clamped between the outer frame 20 and the support member 80 in the optical axis direction D. Specifically, the outer frame 20 has at least one frame protrusion 207, and the frame protrusion 207 extends inward from the side wall of the outer frame 20, that is, toward the frame through groove 201. The lower end of the guide rod 610 abuts against the frame protrusion 207, and the upper end of the guide rod 610 abuts against the support member 80.

[0168] More specifically, the support member 80 includes a support bottom portion 81 and a support high portion 82. The support high portion 82 protrudes upward relative to the support bottom portion 81, such that the support bottom portion 81 and the support high portion 82 form a stepped structure with a height difference. The support high portion 82 extends integrally from the support bottom portion 81. The support bottom portion 81 is fixed to the outer frame 20, such that the entire support member 80 is fixed above the inner carrier 30 and the outer frame 20. The upper end of the guide rod 610 abuts against the support high portion 82 of the support member 80. The support member 80 is in a sheet shape. The support member 80 can be implemented as a metal sheet.

[0169] Further, the lower end of the guide rod 610 is fitted into the frame protrusion 207 to extend into the outer frame 20, increasing the fixing stability. Accordingly, the guide rod 610 has a lower protrusion at its lower end, and the lower protrusion of the guide rod 610 is fitted into the frame protrusion 207.

[0170] The frame protrusion 207 extends inward from the bottom of the outer frame 20. The base 11 has a base bottom groove 1104, which is recessedly formed on the inner surface of the base bottom wall 111. The frame protrusion 207 is fitted into the base bottom groove 1104, such that the frame protrusion 207 is received in the base bottom groove 1104, which can not only facilitate positioning the position of the guide rod 610, but also avoid affecting the movement of the outer frame 20. In an example of the present application, the first support assembly 60 includes two guide rods 610, and the two guide rods 610 are respectively a first guide rod 61 and a second guide rod 62. Specifically, both the first guide rod 61 and the second guide rod 62 are disposed on the first side of the inner carrier 30 and are opposite in the second direction D2, on both sides of the first magnet 42. More specifically, the first guide rod 61 is disposed between a side wall 31 of the carrier and a side wall 21 of the frame and is located near the four side walls 34 of the carrier; the second guide rod 62 is disposed between a side wall 31 of the carrier and a side wall 21 of the frame and is located near the two side walls 32 of the carrier. It should be understood that the positions of the first guide rod 61 and the second guide rod 62 can be interchanged, that is, it can be designed that the first guide rod 61 is located near the two side walls 32 of the carrier and the second guide rod 62 is located near the four side walls 34 of the carrier. The acting point of the force generated by the first driving assembly 40 is closer to the first guide rod 61 and the second guide rod 62, thereby reducing the overturning moment generated during focusing.

[0171] The length extension direction of the first guide rod 61 is consistent with the optical axis direction D; the length extension direction of the second guide rod 62 is consistent with the optical axis direction D. The length of the first guide rod 61 is greater than the moving stroke of the inner carrier 30 along the optical axis direction D, and the length of the second guide rod 62 is greater than the moving stroke of the inner carrier 30 along the optical axis direction D, so that the inner carrier 30 can be supported within the moving stroke.

[0172] In the optical axis direction D, both the first guide rod 61 and the second guide rod 62 are clamped between the outer frame 20 and the support member 80. Specifically, the outer frame 20 has a first frame protrusion 2071 and a second frame protrusion 2072. The first frame protrusion 2071 and the second frame protrusion 2072 respectively extend inward from the side wall 21 of the frame, that is, toward the frame through groove 201. The lower end of the first guide rod 61 abuts against the first frame protrusion 2071, and the lower end of the second guide rod 62 abuts against the second frame protrusion 2072. The upper ends of the first guide rod 61 and the second guide rod 62 abut against the support member 80. Specifically, the upper ends of the first guide rod 61 and the second guide rod 62 abut against the support high part 82 of the support member 80.

[0173] Furthermore, the lower end of the first guide rod 61 is fitted into the first frame protrusion 2071, and the lower end of the second guide rod 62 is fitted into the second frame protrusion 2072 to extend deep into the outer frame 20, increasing the fixing stability. Correspondingly, the first guide rod 61 has a first lower protrusion at its lower end, and the first lower protrusion of the first guide rod 61 is embedded in the first frame protrusion 2071. The second guide rod 62 has a second lower protrusion at its lower end, and the second lower protrusion of the second guide rod 62 is embedded in the second frame protrusion 2072.

[0174] The base 11 has a first base bottom groove 11041 and a second base bottom groove 11042. The first base bottom groove 11041 and the second base bottom groove 11042 are recessedly formed on the inner surface of the base bottom wall 111. The first frame protrusion 2071 and the second frame protrusion 2072 are respectively embedded in the first base bottom groove 11041 and the second base bottom groove 11042.

[0175] In an example of the present application, the guide rod 610 is integrally formed with the outer frame 20. For example, during the injection molding process of the outer frame 20, the guide rod 610 is embedded into the outer frame 20. In this way, the guide rod 610 can be directly fixed to the outer frame 20, which not only helps to ensure the linearity of the guide rod 610, but also can reduce the height of the guide rod 610, thereby reducing the height of the driving device 1. Further, the support member 80 can be removed to further reduce the height of the driving device 1.

[0176] Specifically, the positions of the first guide rod 61 and the second guide rod 62 in the outer frame 20 can be determined first, and then the first guide rod 61, the second guide rod 62 and the outer frame 20 are integrally injection molded by an insert injection molding process. Of course, a connection structure can also be provided between the first guide rod 61 and the second guide rod 62, and then the first guide rod 61, the second guide rod 62 and the outer frame 20 are integrally injection molded by an insert injection molding process to improve the parallelism between the first guide rod 61 and the second guide rod 62. A first longitudinal guide groove 2301 and a second longitudinal guide groove 2302 are provided between the inner carrier 30 and the outer frame 20. The first longitudinal guide groove 2301 and the second longitudinal guide groove 2302 both extend along the optical axis direction D. At least a part of the first guide rod 61 is located in the first longitudinal guide groove 2301, and at least a part of the second guide rod 62 is located in the second longitudinal guide groove 2302, so that the inner carrier 30 is adapted to stably move along the first guide rod 61 and the second guide rod 62 in the optical axis direction D.

[0177] The first guide rod 61 is tightly fitted with the first longitudinal guide groove 2301. The second guide rod 62 is loosely fitted with the second longitudinal guide groove 2302. It should be understood that by tightly fitting the first guide rod 61 with the first longitudinal guide groove 2301 and loosely fitting the second guide rod 62 with the second longitudinal guide groove 2302, the assembly difficulty between the inner carrier 30 and the outer frame 20 can be reduced.

[0178] Specifically, the first longitudinal guide groove 2301 includes a first carrier longitudinal semi-guide groove 23011 and a first frame longitudinal semi-guide groove 23012. The first carrier longitudinal semi-guide groove 23011 and the first frame longitudinal semi-guide groove 23012 are opposite in the first direction D1. The first carrier longitudinal semi-guide groove 23011 is formed on the outer surface of the carrier side wall 31 of the inner carrier 30; the first frame longitudinal semi-guide groove 23012 is formed on the inner surface of the frame side wall 21 of the outer frame 20.

[0179] The cross-sectional shape of the first carrier longitudinal semi-guide groove 23011 and / or the first frame longitudinal semi-guide groove 23012 can be "V" shaped.

[0180] The second longitudinal guide groove 2302 includes a second carrier longitudinal semi-guide groove 23021 and a second frame longitudinal semi-guide groove 23022. The second carrier longitudinal semi-guide groove 23021 and the second frame longitudinal semi-guide groove 23022 face each other in the first direction D1. The second carrier longitudinal semi-guide groove 23021 is formed on the outer surface of the carrier side wall 31 of the inner carrier 30; the second frame longitudinal semi-guide groove 23022 is formed on the inner surface of the frame side wall 21 of the outer frame 20.

[0181] The cross-sectional shape of the second carrier longitudinal semi-guide groove 23021 can be an "L" shape or a "U" shape. The cross-sectional shape of the second frame longitudinal semi-guide groove 23022 can be an "L" shape or a "U" shape.

[0182] It is worth mentioning that the contact position, quantity, and area of the guide rod 610 and the longitudinal guide groove 230 will affect the wear degree of the inner carrier 30. In this application, by designing the contact position and quantity of the guide rod 610 and the longitudinal guide groove 230, the wear of the inner carrier 30 caused by long-term movement is reduced, the durability and reliability of the inner carrier 30 are improved, and further the durability and reliability of the driving device 1 for the camera module 100 are improved.

[0183] In an embodiment of this application, as Figure 21 shown, the inner carrier 30 has at least three contact positions formed on its side wall, namely a first contact position 305, a second contact position 306, and a third contact position 307. In a preset arrangement direction, the first contact position 305 and the second contact position 306 are located on the same side of the first driving component 40, and the third contact position 307 is located on the side of the first driving component 40 opposite to the first contact position 305 and the second contact position 306. The preset arrangement direction is perpendicular to the arrangement direction of the focusing magnetic part 9210 and the first magnet 42. In an example of this application, the preset arrangement direction is the length direction of the first magnet 42 and is consistent with the second direction D2. The first contact position 305 is located above the second contact position 306. The first contact position 305 is close to the carrier upper surface 302 of the inner carrier 30. The second contact position 306 is close to the carrier lower surface 303 of the inner carrier 30.

[0184] In an embodiment of the present application, at least one component of the first support assembly 60 abuts against the first contact position 305, at least one component of the first support assembly 60 abuts against the second contact position 306, and at least one component of the first support assembly 60 abuts against the third contact position 307. In this way, a triangular support surface is formed between the first contact position 305, the second contact position 306, the third contact position 307 and the first support assembly 60.

[0185] Specifically, in an embodiment of the present application, the number of contact positions between the inner carrier 30 and the first guide rod 61 is at least two, namely the first contact position 305 and the second contact position 306. The number of contact positions between the inner carrier 30 and the second guide rod 62 is at least one, namely the third contact position 307. The second contact position 306 is closer to the lower surface 303 of the carrier of the inner carrier 30 than the third contact position 307.

[0186] The inner carrier 30 has two contact protrusions on the groove wall of the first carrier longitudinal semi-groove 23011. The two contact protrusions located on the groove wall of the first carrier longitudinal semi-groove 23011 are the first contact protrusion and the second contact protrusion respectively. The positions where the first contact protrusion and the second contact protrusion are located form the first contact position 305 and the second contact position 306 of the inner carrier 30 respectively. In this embodiment, the cross-sectional shape of the first carrier longitudinal semi-groove 23011 and / or the first frame longitudinal semi-groove 23012 may be "V"-shaped; the groove wall of the second carrier longitudinal semi-groove 23021 is a plane as a whole. In this way, during the movement of the inner carrier 30 relative to the outer frame 20, the guiding of the inner carrier 30 is mainly achieved through the limiting relationship between the first guide rod 61 and the first carrier longitudinal semi-groove 2301, and at the same time, the problem of inability to assemble due to tolerance problems is avoided. The inner carrier 30 has one contact protrusion on the groove wall of the second carrier longitudinal semi-groove 23021. The one contact protrusion located on the groove wall of the second carrier longitudinal semi-groove 23021 is the third contact protrusion, and the position where the third contact protrusion is located forms the third contact position 307.

[0187] In the optical axis direction D, the height at which the third contact protrusion is located is higher than the height at which the second contact protrusion is located and lower than the height at which the first contact protrusion is located; the positions where the first contact protrusion, the second contact protrusion, and the third contact protrusion are located form a triangular positional relationship. Correspondingly, the height at which the third contact position 307 is located is higher than the height at which the second contact position 306 is located and lower than the height at which the first contact position 305 is located; the first contact position 305, the second contact position 306, and the third contact position 307 form a triangular positional relationship. A triangular support surface is formed between the first contact position 305, the second contact position 306, and the third contact position 307 and the first guide rod 61 and the second guide rod 62, such that the inner carrier 30 is supported by the first guide rod 61 and the second guide rod 62, and thus is supported by the outer frame 20.

[0188] Considering that the second guide rod 62 only needs to be in contact with one contact position, therefore, the length of the second guide rod 62 can be shorter than the length of the first guide rod 61. In this way, it helps to maintain the parallelism of the second guide rod 62 and provides more abundant space for the arrangement of other components.

[0189] It should be understood that the first guide rod 61 and the second guide rod 62 can also be assembled in other ways. For example, the carrier side wall 31 of the inner carrier 30 has a first through hole and a second through hole. The first guide rod 61 is inserted into the first through hole, and the second guide rod 62 is inserted into the second through hole.

[0190] It is worth mentioning that the first support assembly 60 can also be implemented in other ways and achieve triangular support in other ways. The component in the first support assembly 60 that is in contact with the first contact position 305 can be a guide rod or a slider or a ball, the component in contact with the second contact position 306 can be a guide rod or a slider or a ball, and the component in contact with the third contact position 307 can be a guide rod or a slider or a ball.

[0191] It is worth mentioning that it is desirable that the resultant magnetic attraction force between the inner carrier 30 and the outer frame 20 biases towards the side where the first contact position 305 and the second contact position 306 are located. More specifically, it is desirable that the resultant magnetic attraction force between the inner carrier 30 and the outer frame 20 biases towards the side where the first contact position 305 and the second contact position 306 are located compared to the side where the third contact position is located in the length direction of the first magnet 42, such that the inner carrier 30 is not prone to tipping relative to the outer frame 20, that is, not prone to deflecting relative to the outer frame 20 with the first contact position 305 and the second contact position 306 as the rotation axes. For this reason, specific designs are made for the setting position and structure of the focusing magnetic attraction member 9210 and the structure of the first support assembly 60 in this application.

[0192] Specifically, in the design of the setting position and structure of the focusing magnetic attraction member 9210, the focusing magnetic attraction member 9210 is eccentrically arranged relative to the first magnet 42, that is, the center of the magnetic attraction member 92 does not coincide with the center of the first magnet 42. More specifically, the center of the focusing magnetic attraction member 9210 is offset towards the first contact position 305 and the second contact position 306 relative to the center of the first magnet 42 in the preset arrangement direction. Specifically, it is manifested as: the distance between the focusing magnetic attraction member 9210 and the first contact position 305 in the preset arrangement direction is less than the distance between the focusing magnetic attraction member 9210 and the third contact position 307 in the preset arrangement direction; the distance between the focusing magnetic attraction member 9210 and the second contact position 306 in the preset arrangement direction is less than the distance between the focusing magnetic attraction member 9210 and the third contact position 307 in the preset arrangement direction; or specifically, it is manifested as: the distance between the focusing magnetic attraction member 9210 and the first contact position 305 in the preset arrangement direction is less than the distance between the first magnet 42 and the first contact position 305 in the preset arrangement direction; the distance between the focusing magnetic attraction member 9210 and the second contact position 306 in the preset arrangement direction is less than the distance between the first magnet 42 and the second contact position 306 in the preset arrangement direction; the distance between the focusing magnetic attraction member 9210 and the third contact position 307 in the preset arrangement direction is greater than the distance between the first magnet 42 and the third contact position 307 in the preset arrangement direction.

[0193] The magnetic attraction force between the magnetic attraction member 9210 for focusing and the first magnet 42 is biased towards the side where the first contact position 305 and the second contact position 306 are located, so that the resultant force of the magnetic attraction forces between the inner carrier 30 and the outer frame 20 is biased towards the side where the first contact position 305 and the second contact position 306 are located. When viewed from the direction perpendicular to the triangular support surface, the magnetic attraction force between the magnetic attraction member 9210 for focusing and the first magnet 42 is within the triangular support surface and is biased towards the side where the first contact position 305 and the second contact position 306 are located, making it difficult for the inner carrier 30 to overturn relative to the outer frame 20, that is, it is not easy to deflect relative to the outer frame 20 with the first contact position 305 and the third contact position 307 as the rotation axis, or with the second contact position 306 and the third contact position 307 as the rotation axis.

[0194] Specifically, in order to reduce the size of the driving device 1 for the camera module 100 in the optical axis direction D, the distance between the first contact position 305 and the second contact position 306 in the optical axis direction D is relatively close. The triangle formed by connecting the first contact position 305, the second contact position 306, and the third contact position 307 in sequence as a whole shows a slender characteristic. The center of the magnetic field between the magnetic attraction member 9210 for focusing and the first magnet 42 is relatively close to the connection line between the first contact position 305 and the third contact position 307, and the center of the magnetic field between the magnetic attraction member 9210 for focusing and the first magnet 42 is relatively close to the connection line between the second contact position 306 and the third contact position 307. And during the optical focusing process, as the inner carrier 30 moves, the center of the magnetic field between the magnetic attraction member 9210 for focusing and the first magnet 42 is more likely to exceed the range of the triangle formed by connecting the first contact position 305, the second contact position 306, and the third contact position 307 in sequence, and the phenomenon of the inner carrier 30 overturning is likely to occur.

[0195] Furthermore, in the modified embodiment where the center of the magnetic attraction member 9210 for focusing is biased towards the side where the first contact position 305 and the second contact position 306 are located, a structural reinforcement plate is also provided on the part of the frame circuit board 25 that is biased towards the third contact position 307 to reinforce the structure of the part of the frame circuit board 25 that is not covered by the magnetic attraction member 9210 for focusing and is in an exposed state.

[0196] Accordingly, the driving device 1 for the camera module 100 further includes a first structural reinforcement plate 27, which is disposed on the portion of the frame circuit board 25 that is not covered by the focusing magnetic member 9210, and is located on the portion of the frame circuit board 25 close to the third contact position 307 in the preset arrangement direction, and is located outside the frame circuit board 25 in the thickness direction of the frame circuit board 25. The thickness direction of the frame circuit board 25 is consistent with the first direction D1. The main function of the first structural reinforcement plate 27 is structural reinforcement, with a hardness greater than that of the frame circuit board 25 and no magnetic conductivity, so as not to affect the magnetic attraction force between the focusing magnetic member 9210 and the first magnet 42 and cause the inner carrier 30 to be prone to tipping over.

[0197] Specifically, the frame circuit board 25 is usually a flexible circuit board. When the center of the focusing magnetic member 9210 is set to be biased towards the side where the first contact position 305 and the second contact position 306 are located, the portion of the frame circuit board 25 that is biased towards the third contact position 307 is in an exposed state, and due to the influence of its flexible structural characteristics, the exposed portion of the frame circuit board 25 that is biased towards the third contact position 307 is prone to deformation. Accordingly, the first structural reinforcement plate 27 is disposed on the portion of the frame circuit board 25 that is not covered by the focusing magnetic member 9210 and is in an exposed state.

[0198] In order to make the magnetic attraction force between the focusing magnetic member 9210 and the first magnet 42 further biased towards the side where the first contact position 305 and the second contact position 306 are located, the focusing magnetic member 9210 has at least one first empty groove 921 (as Figure 19 shown) and Figure 21 the center of the first empty groove 921 is biased towards the side where the third contact position 307 is located relative to the center of the focusing magnetic member 9210.

[0199] In an example of the present application, the first empty groove 921 is a through groove, that is, the first empty groove 921 penetrates through the focusing magnetic member 9210 in the thickness direction of the focusing magnetic member 9210, where the thickness direction of the focusing magnetic member 9210 is consistent with the first direction D1.

[0200] Furthermore, a structural reinforcement plate is provided on the portion of the frame circuit board 25 corresponding to the first empty groove 921.

[0201] Correspondingly, the driving device 1 for the camera module 100 further includes a second structural reinforcement plate 28, which is disposed on the portion of the frame circuit board 25 corresponding to the first empty slot 921 and is located outside the frame circuit board 25 in the thickness direction of the frame circuit board 25. The main function of the second structural reinforcement plate 28 is structural reinforcement, with a hardness greater than that of the frame circuit board 25 and no magnetic permeability, so as not to affect the magnetic attraction between the focusing magnetic part 9210 and the first magnet 42 and cause the inner carrier 30 to be prone to tipping over.

[0202] Specifically, the frame circuit board 25 is usually a flexible circuit board, and the portion of the frame circuit board 25 corresponding to the first empty slot 921 is prone to deformation. Especially when the first empty slot 921 is a through slot, the portion of the frame circuit board 25 corresponding to the first empty slot 921 is exposed, which is not only prone to deformation but also prone to damage. Correspondingly, the second structural reinforcement plate 28 is disposed on the portion of the frame circuit board 25 corresponding to the first empty slot 921.

[0203] Although the height dimension of the focusing magnetic part 9210 itself is greater than the height dimension of the first magnet 42 itself, that is, in the optical axis direction, the dimension of the focusing magnetic part 9210 itself is greater than the dimension of the first magnet 42 itself. However, during the optical focusing process, the first magnet 42 will move relative to the first coil 41 in the optical axis direction D, and then it appears that at least part of the height of the first magnet 42 is higher than the height of the focusing magnetic part 9210, or at least part of the height of the first magnet 42 is lower than the height of the focusing magnetic part 9210, so that the magnetic force between the focusing magnetic part 9210 and the first magnet 42 forms a restoring force. Among them, the restoring force formed by the magnetic force between the focusing magnetic part 9210 and the first magnet 42 is opposite to the magnetic force between the first coil 41 and the first magnet 42, prompting the first magnet 42 to have a tendency to return to its initial position and hindering the first magnet 42 from moving along the optical axis direction D according to the expected movement process. The initial position of the first magnet 42 refers to the position where the first magnet 42 is located when there is no magnetic force between the first magnet 42 and the first coil 41.

[0204] In order to reduce the influence of the restoring force formed by the magnetic force between the focusing magnetic part 9210 and the first magnet 42 on the movement of the first magnet 42 in the optical axis direction D, the focusing magnetic part 9210 is further provided with a second empty slot 922. The second empty slot 922 can be set at a position corresponding to the portion with stronger magnetism of the first magnet 42, and such a setting can reduce the driving force requirement for optical focusing.

[0205] In an example of the present application, the magnetic property of the central region of the first magnet 42 is the strongest. Correspondingly, in this example, the second empty slot 922 can be arranged at a position corresponding to the central region of the first magnet 42, such as Figure 21 shown. Correspondingly, in this example, in the thickness direction of the magnetic absorption member 9210 for focusing, the second empty slot 922 corresponds to the central region of the first magnet 42.

[0206] The second empty slot 922 can be a through slot, that is, the second empty slot 922 penetrates through the magnetic absorption member 9210 for focusing in the thickness direction of the magnetic absorption member 9210 for focusing, wherein the thickness direction of the magnetic absorption member 9210 for focusing is consistent with the first direction D1.

[0207] It should be noted that since the first magnet 42 is movable in the optical axis direction D during the optical focusing process, the size of the second empty slot 922 in the optical axis direction D should also consider the size of the optical focusing stroke, so as to prevent the position with the strongest magnetic property of the first magnet 42 from overlapping with the part of the magnetic absorption member 9210 for focusing where the first empty slot 921 and the second empty slot 922 are arranged during the movement of the first magnet 42.

[0208] Correspondingly, the size of the second empty slot 922 in the optical axis direction D is larger than the optical focusing driving stroke. For example, in an example of the present application, the optical focusing driving stroke is 0.7 mm, and the size of the second empty slot 922 in the optical axis direction D is 1.66 mm. The optical focusing driving stroke is equal to the moving stroke of the first magnet 42 in the optical axis direction D.

[0209] Furthermore, "the size of the second empty slot 922 in the optical axis direction D is larger than the optical focusing driving stroke" is the size requirement for the second empty slot 922 when the first magnet 42 does not have a neutral region. When the first magnet 42 has a neutral region, the size of the second empty slot 922 in the optical axis direction D is larger than the sum of the optical focusing driving stroke and the size of the neutral region of the first magnet 42 in the optical axis direction D. The neutral region of the first magnet 42 refers to the region where the magnetic induction intensity is zero when the external magnetic field of the first magnet 42 is zero.

[0210] Furthermore, a structural reinforcement plate is provided at a part of the frame circuit board 25 corresponding to the second empty slot 922.

[0211] Accordingly, the driving device 1 for the camera module 100 further includes a third structural reinforcement plate, which is disposed on the portion of the frame circuit board 25 corresponding to the second empty slot 922 and is located outside the frame circuit board 25 in the thickness direction of the frame circuit board 25. The main function of the third structural reinforcement plate is structural reinforcement, and its hardness is greater than that of the frame circuit board 25, and it is not magnetically conductive, so as not to affect the magnetic attraction force between the focusing magnetic part 9210 and the first magnet 42, resulting in the easy tipping of the inner carrier 30.

[0212] It should be understood that the setting positions of the first empty slot 921 and the second empty slot 922 may be the same. Accordingly, the first empty slot 921 and the second empty slot 922 may be the same slot; the second structural reinforcement plate 28 and the third structural reinforcement plate are the same structural reinforcement plate. Accordingly, the first empty slot 921 may correspond to the central area of the first magnet 42 while its center is biased towards the side where the third contact position 307 is located relative to the center of the focusing magnetic part 9210; the second empty slot 922 may correspond to the central area of the first magnet 42 while its center is biased towards the side where the third contact position 307 is located relative to the center of the focusing magnetic part 9210.

[0213] It should also be understood that the first empty slot 921 and the second empty slot 922 may communicate with each other.

[0214] It is worth mentioning that the first position sensing element 951 is disposed inside the frame circuit board 25; when only a part of the first position sensing element 951 corresponds to the first empty slot 921 and / or the second empty slot 922 in the orthographic projection in the thickness direction of the frame circuit board 25, and other parts exceed the first empty slot 921 and / or the second empty slot 922 in the orthographic projection in the thickness direction of the frame circuit board 25, the position measurement performance of the first position sensing element 951 is unstable, and there may also be a risk of being damaged. Accordingly, ideally, the orthographic projection of the first position sensing element 951 in the thickness direction of the frame circuit board 25 is completely within the first empty slot 921, and the orthographic projection of the first position sensing element 951 in the thickness direction of the frame circuit board 25 is completely within the second empty slot 922. Considering the problem of mounting accuracy, a certain distance is reserved between the orthographic projection of the first position sensing element 951 in the thickness direction of the frame circuit board 25 and the slot wall of the first empty slot 921; a certain distance is reserved between the orthographic projection of the first position sensing element 951 in the thickness direction of the frame circuit board 25 and the slot wall of the second empty slot 922.

[0215] In an example of the present application, the distance between the orthographic projection of the first position sensing element 951 in the thickness direction of the frame circuit board 25 and the groove wall of the first empty groove 921 is greater than or equal to 0.3 mm; the distance between the orthographic projection of the first position sensing element 951 in the thickness direction of the frame circuit board 25 and the groove wall of the second empty groove 922 is greater than or equal to 0.3 mm.

[0216] It is also worth mentioning that the first position sensing element 951 disposed inside the frame circuit board 25 faces the second structural reinforcement plate 28 and / or the third structural reinforcement plate disposed outside the frame circuit board 25; in this way, the first position sensing element 951 and the second structural reinforcement plate 28 and / or the third structural reinforcement plate can support and protect the frame circuit board 25 on both sides of the frame circuit board 25, and can ensure the structural stability and performance stability of the frame circuit board 25 to a certain extent.

[0217] Furthermore, in order to make the resultant magnetic attraction force between the inner carrier 30 and the outer frame 20 deviate towards the side where the first contact position 305 and the second contact position 306 are located, in a modified embodiment of the present application, the components of the first support assembly 60 that are in contact with the first contact position 305 and / or the components that are in contact with the second contact position 306 are designed to be magnetically conductive, and a magnetic attraction magnet 29 is provided on the inner carrier 30 at a position opposite to the components of the first support assembly 60 that are in contact with the first contact position 305 and / or the components that are in contact with the second contact position 306. The magnetic force between the magnetic attraction magnet 29 provided on the inner carrier 30 and the components of the first support assembly 60 that are in contact with the first contact position 305 and / or the components that are in contact with the second contact position 306 causes the resultant magnetic attraction force between the inner carrier 30 and the outer frame 20 to shift towards the side where the first contact position 305 and the second contact position 306 are located.

[0218] Specifically, an implementation manner in which the component of the first support assembly 60 that abuts against the first contact position 305 and the second contact position 306 is implemented as the first guide rod 61 having magnetic conductivity is used to illustrate the design manner of the first support assembly 60 and the magnetic attraction magnet 29. The first guide rod 61 abuts against the first contact position 305 and the second contact position 306. The magnetic attraction magnet 29 is disposed on the inner carrier 30 and is opposite to the first guide rod 61. The magnetic force between the magnetic attraction magnet 29 and the first guide rod 61 causes the resultant magnetic attraction force between the inner carrier 30 and the outer frame 20 to shift toward the side where the first contact position 305 and the second contact position 306 are located. It should be understood that when a magnetic force is generated between the magnetic attraction magnet 29 and the first guide rod 61, the first guide rod 61 is adapted to be fixed to the outer frame 20.

[0219] It should be understood that when the component of the first support assembly 60 that abuts against the first contact position 305 and the second contact position 306 is implemented as other structures, the magnetic attraction magnet 29 is opposite to other structures implemented as the component of the first support assembly 60 that abuts against the first contact position 305 and the second contact position 306.

[0220] For example, when the component of the first support assembly 60 that abuts against the first contact position 305 is implemented as a ball and the component of the first support assembly 60 that abuts against the second contact position 306 is implemented as a ball, at least part of the magnetic attraction magnet 29 is opposite to the ball and / or at least part of the magnetic attraction magnet 29 is opposite to a magnetic component provided on the ball away from the magnetic attraction magnet 29; the magnetic force between the magnetic attraction magnet 29 and the ball and / or the magnetic force between the magnetic attraction magnet 29 and the magnetic component provided on the ball away from the magnetic attraction magnet 29 causes the resultant magnetic attraction force between the inner carrier 30 and the outer frame 20 to shift toward the side where the first contact position 305 and the second contact position 306 are located. It should be understood that when a magnetic force is generated between the magnetic attraction magnet 29 and the ball, the ball is adapted to be fixed to the outer frame 20.

[0221] For another example, when the component of the first support assembly 60 that abuts against the first contact position 305 is implemented as a slider and the component of the first support assembly 60 that abuts against the second contact position 306 is implemented as a slider, at least part of the magnetic attraction magnet 29 faces the slider and / or at least part of the magnetic attraction magnet 29 faces a magnetic component provided on the slider away from the magnetic attraction magnet 29; the magnetic force between the magnetic attraction magnet 29 and the slider and / or the magnetic force between the magnetic attraction magnet 29 and the magnetic component provided on the slider away from the magnetic attraction magnet 29 cause the resultant magnetic attraction force between the inner carrier 30 and the outer frame 20 to shift toward the side where the first contact position 305 and the second contact position 306 are located. It should be understood that when a magnetic force is generated between the magnetic attraction magnet 29 and the slider, the slider is adapted to be fixed to the outer frame 20.

[0222] The magnetic attraction magnet 29 can be embedded in the inner carrier 30 to reduce the extra space occupied by the magnetic attraction magnet 29, thereby reducing the overall volume of the driving device 1 for the camera module 100. In an example of the present application, the inner carrier 30 has a magnet groove 309, and the magnetic attraction magnet 29 is received in the magnet groove 309. In this example, the magnet groove 309 has an opening and the opening faces downward, which is convenient for the placement and fixation of the magnetic attraction magnet 29. Specifically, the magnet groove 309 is recessed upward from the lower surface of the carrier 303. It should be understood that the magnet groove 309 may not be provided with an opening; the magnetic attraction magnet 29 can be embedded in the inner carrier 30 by insert molding during the molding process of the inner carrier 30.

[0223] Preferably, as Figure 18 shown, the center of the magnetic attraction magnet 29 is aligned or close to the center of the line connecting the first contact position 305 and the second contact position 306 in the optical axis direction D. For example, the distance between the center of the magnetic attraction magnet 29 and the first contact position 305 in the optical axis direction D is greater than or equal to one-fourth and less than or equal to three-fourths of the distance between the first contact position 305 and the second contact position 306 in the optical axis direction D. Preferably, the distance between the center of the magnetic attraction magnet 29 and the first contact position 305 in the optical axis direction D is equal to one-half of the distance between the first contact position 305 and the second contact position 306 in the optical axis direction D.

[0224] When the component of the first support assembly 60 that abuts against the first contact position 305 and the second contact position 306 is implemented as the first guide rod 61, preferably, the center of the magnetic attraction magnet 29 coincides with or is close to the center of the first guide rod 61. For example, the distance between the center of the magnetic attraction magnet 29 and the upper end of the first guide rod 61 is greater than or equal to one-fourth and less than or equal to three-fourths of the dimension of the first guide rod 61 in the optical axis direction D.

[0225] Preferably, the upper surface of the magnetic attraction magnet 29 is lower than the upper surface of the first magnet 42, and the lower surface of the magnetic attraction magnet 29 is higher than the lower surface of the first magnet 42 to control the height of the magnetic attraction force generated between the magnetic attraction magnet 29 and the first support assembly 60, and reduce the adverse offset of the overall magnetic attraction force resultant in the optical axis direction.

[0226] Correspondingly, it is worth mentioning that the adjustment of the magnetic attraction magnet 29 in the optical axis direction can adjust the offset of the magnetic attraction force between the focusing magnetic attraction member 9210 and the first magnet 42 in the optical axis direction, so that the support between the inner carrier 30 and the outer frame 20 can be stably maintained. In an embodiment of the present application, the second support assembly 70 is a rolling support assembly, that is, it is rollably installed inside the driving device 1 for the camera module 100, and the second support assembly 70 rolls when the outer frame 20 moves. Correspondingly, the second support assembly 70 rollably supports the outer frame 20 to move along the first direction D1 and the second direction D2.

[0227] It is worth mentioning that in the present application, by adopting a single-layer rolling support assembly to realize the guiding and supporting of the outer frame 20, the height dimension of the driving device 1 for the camera module 100 can be reduced to a certain extent. Specifically, in the present application, the second support assembly 70 is provided only on one side of the outer frame 20 in the optical axis direction D. For example, the second support assembly 70 is provided only on the upper side of the outer frame 20, or only on the lower side of the outer frame 20. Compared with providing the second support assembly 70 on both the upper side and the lower side of the outer frame 20, providing the second support assembly 70 only on the upper side of the outer frame 20, or only on the lower side of the outer frame 20 can reduce the height dimension of the driving device 1 for the camera module 100 to a certain extent.

[0228] In an embodiment of the present application, as Figure 2 and Figure 13As shown, the second support assembly 70 is disposed between the outer frame 20 and the base 11, and is located on the outer bottom surface of the outer frame 20. Specifically, the second support assembly 70 is disposed between the lower surface 203 of the frame of the outer frame 20 and the inner surface of the bottom wall 111 of the base 11.

[0229] The second support assembly 70 includes at least one ball 71. At least one lateral guide groove 210 is provided between the outer frame 20 and the base 11, and the ball 71 is rollably disposed in the lateral guide groove 210. As Figure 2 , Figure 4 and Figure 5 shown, the lateral guide groove 210 includes a first lateral groove 2101 and a second lateral groove 2102. The length direction of the first lateral groove 2101 is consistent with the first direction D1, so that the first lateral groove 2101 can guide the ball 71 and the outer frame 20 to move along the first direction D1; the length direction of the second lateral groove 2102 is consistent with the second direction D2, so that the second lateral groove 2102 can guide the ball 71 and the outer frame 20 to move along the second direction D2. When the first driving assembly 51 of the second driving assembly 50 drives the outer frame 20 to move along the first direction D1, the ball 71 guides the outer frame 20 to move in the first direction D1 along the first lateral groove 2101. When the second driving assembly 52 of the second driving assembly 50 drives the outer frame 20 to move along the second direction D2, the ball 71 guides the outer frame 20 to move in the second direction D2 along the second lateral groove 2102.

[0230] In an example of the present application, the number of balls 71 of the second support assembly 70 is greater than or equal to 3. Specifically, the second support assembly 70 includes four balls 71, and the four balls 71 are respectively a first ball 711, a second ball 712, a third ball 713, and a fourth ball 714. Correspondingly, a first lateral guide groove, a second lateral guide groove, a third lateral guide groove, and a fourth lateral guide groove are provided between the outer frame 20 and the base 11. The first ball 711 is disposed in the first lateral guide groove; the second ball 712 is disposed in the second lateral guide groove; the third ball 713 is disposed in the third lateral guide groove; the fourth ball 714 is disposed in the fourth lateral guide groove.

[0231] It is worth mentioning that the longitudinal guide groove 230 for accommodating the guide rod 610 and the transverse guide groove 210 for accommodating the ball 71 are located on different sides of the driving device 1 for the camera module 100. The longitudinal guide groove 230 is located on the first side of the driving device 1 for the camera module 100; the transverse guide groove 210 is located on the second side and the fourth side of the driving device 1 for the camera module 100.

[0232] The balls 71 are respectively arranged close to both sides where the first driving component 51 and the second driving component 52 for realizing anti-shake driving are located. The acting points of the forces generated by the first driving component 51 and the second driving component 52 for realizing anti-shake driving are closer to the balls 71, thereby reducing the overturning moment generated during anti-shake and being able to reduce the possibility of the inner carrier 30 tilting.

[0233] The first transverse guide groove includes a first first-direction transverse groove and a first second-direction transverse groove. The length direction of the first first-direction transverse groove is consistent with the first direction D1, so that the first first-direction transverse groove can guide the first ball 711 and the outer frame 20 to move along the first direction D1; the length direction of the first second-direction transverse groove is consistent with the second direction D2, so that the first second-direction transverse groove can guide the first ball 711 and the outer frame 20 to move along the second direction D2. When the first driving component 51 of the second driving component 50 drives the outer frame 20 to move along the first direction D1, the first ball 711 guides the outer frame 20 to move in the first direction D1 along the first first-direction transverse groove. When the second driving component 52 of the second driving component 50 drives the outer frame 20 to move along the second direction D2, the first ball 711 guides the outer frame 20 to move in the second direction D2 along the first second-direction transverse groove.

[0234] The second lateral guide groove includes a first second lateral groove and a second second lateral groove. The length direction of the first second lateral groove is consistent with the first direction D1, so that the first second lateral groove can guide the second ball 712 and the outer frame 20 to move along the first direction D1; the length direction of the second second lateral groove is consistent with the second direction D2, so that the second second lateral groove can guide the second ball 712 and the outer frame 20 to move along the second direction D2. When the first driving component 51 of the second driving component 50 drives the outer frame 20 to move along the first direction D1, the second ball 712 guides the outer frame 20 to move in the first direction D1 along the first second lateral groove. When the second driving component 52 of the second driving component 50 drives the outer frame 20 to move along the second direction D2, the second ball 712 guides the outer frame 20 to move in the second direction D2 along the second second lateral groove.

[0235] The third lateral guide groove includes a first third lateral groove and a second third lateral groove. The length direction of the first third lateral groove is consistent with the first direction D1, so that the first third lateral groove can guide the third ball 713 and the outer frame 20 to move along the first direction D1; the length direction of the second third lateral groove is consistent with the second direction D2, so that the second third lateral groove can guide the third ball 713 and the outer frame 20 to move along the second direction D2. When the first driving component 51 of the second driving component 50 drives the outer frame 20 to move along the first direction D1, the third ball 713 guides the outer frame 20 to move in the first direction D1 along the first third lateral groove. When the second driving component 52 of the second driving component 50 drives the outer frame 20 to move along the second direction D2, the third ball 713 guides the outer frame 20 to move in the second direction D2 along the second third lateral groove.

[0236] The fourth lateral guiding groove includes a first fourth lateral groove and a second fourth lateral groove. The length direction of the first fourth lateral groove is consistent with the first direction D1, such that the first fourth lateral groove can guide the fourth ball 714 and the outer frame 20 to move along the first direction D1; the length direction of the second fourth lateral groove is consistent with the second direction D2, such that the second fourth lateral groove can guide the fourth ball 714 and the outer frame 20 to move along the second direction D2. When the first driving component 51 of the second driving component 50 drives the outer frame 20 to move along the first direction D1, the fourth ball 714 guides the outer frame 20 to move in the first direction D1 along the first fourth lateral groove. When the second driving component 52 of the second driving component 50 drives the outer frame 20 to move along the second direction D2, the fourth ball 714 guides the outer frame 20 to move in the second direction D2 along the second fourth lateral groove.

[0237] In the present application, the setting carriers of each of the first lateral grooves 2101 and each of the second lateral grooves 2102 are different. In an example of the present application, the first lateral grooves 2101 are provided on the lower surface 203 of the outer frame 20, and the second lateral grooves 2102 are disposed on the inner surface of the bottom wall 111 of the base 11.

[0238] Specifically, the first first lateral groove, the second first lateral groove, the third first lateral groove, and the fourth first lateral groove are provided on the lower surface 203 of the outer frame 20; the first second lateral groove, the second second lateral groove, the third second lateral groove, and the fourth second lateral groove are provided on the inner surface of the bottom wall 111 of the base 11. Specifically, the first first lateral groove, the second first lateral groove, the third first lateral groove, and the fourth first lateral groove are respectively provided on the second lower side edge, the second lower corner portion, the third lower corner portion, and the fourth lower side edge of the outer frame 20.

[0239] It should be understood that the first lateral grooves 2101 and the second lateral grooves 2102 may also be provided on the same component. For example, they may both be provided on the outer frame 20, or both be provided on the base 11. In other words, the first first lateral groove, the second first lateral groove, the third first lateral groove, the fourth first lateral groove, the first second lateral groove, the second second lateral groove, the third second lateral groove, and the fourth second lateral groove may all be provided on the outer frame 20, or all be provided on the base 11.

[0240] Each of the first-direction transverse grooves 2101 and each of the second-direction transverse grooves 2102 may also be arranged in other ways. For example, some of the first-direction transverse grooves 2101 and some of the second-direction transverse grooves 2102 are provided in the outer frame 20; some of the first-direction transverse grooves 2101 and some of the second-direction transverse grooves 2102 are provided in the base 11.

[0241] In the above-described embodiment of the present application, optical image stabilization in two directions is achieved through one outer frame 20. It should be understood that optical image stabilization in two directions can be achieved by two carriers respectively. It is worth mentioning that when optical image stabilization in two directions is achieved by two carriers respectively, each carrier for achieving optical image stabilization can be guided and supported by a single-layer rolling support assembly.

[0242] Correspondingly, in a modified embodiment of the present application, the outer frame 20 includes a first sub-carrier and a second sub-carrier. The inner carrier 30 is mounted on the first sub-carrier, and the first sub-carrier is mounted on the second sub-carrier or the base 11. The second sub-carrier is mounted on the base 11. The first sub-carrier includes a first side wall of the first sub-carrier, a second side wall of the first sub-carrier, a third side wall of the first sub-carrier, and a fourth side wall of the first sub-carrier. The first side wall of the first sub-carrier and the third side wall of the first sub-carrier are opposite to each other in the first direction D1, and the second side wall of the first sub-carrier and the fourth side wall of the first sub-carrier are opposite to each other in the second direction D2. The first sub-carrier has a through groove of the first sub-carrier, and the through groove of the first sub-carrier penetrates the first sub-carrier in the optical axis direction D. The second sub-carrier includes a first side wall of the second sub-carrier, a second side wall of the second sub-carrier, a third side wall of the second sub-carrier, and a fourth side wall of the second sub-carrier. The first side wall of the second sub-carrier and the third side wall of the second sub-carrier are opposite to each other in the first direction D1, and the second side wall of the second sub-carrier and the fourth side wall of the second sub-carrier are opposite to each other in the second direction D2. The second sub-carrier has a through groove of the second sub-carrier, and the through groove of the second sub-carrier penetrates the second sub-carrier in the optical axis direction D. The lower surface of the second sub-carrier forms the lower surface 203 of the frame. The upper surface of the first sub-carrier forms the upper surface 202 of the frame.

[0243] One side wall 1121 of the base, one side wall of the first sub-carrier, one side wall of the second sub-carrier, and one side wall 31 of the carrier are located on the same side of the driving device 1 for the camera module 100 and are opposite to each other along the first direction D1; two side walls 1122 of the base, two side walls of the first sub-carrier, two side walls of the second sub-carrier, and two side walls 32 of the carrier are located on the same side of the driving device 1 for the camera module 100 and are opposite to each other along the second direction D2; three side walls 1123 of the base, three side walls of the first sub-carrier, three side walls of the second sub-carrier, and three side walls 33 of the carrier are located on the same side of the driving device 1 for the camera module 100 and are opposite to each other along the first direction D1; four side walls 1124 of the base, four side walls of the first sub-carrier, four side walls of the second sub-carrier, and four side walls 34 of the carrier are located on the same side of the driving device 1 for the camera module 100 and are opposite to each other along the second direction D2.

[0244] The first magnet 42 of the first driving component 40 is installed on one side wall 31 of the inner carrier 30; the first coil 41 and the first position sensing element 951 of the first driving component 40 are installed on one side wall of the first sub-carrier. The one-way driving component 51 is configured to drive the first sub-carrier to move relative to the base 11 along the first direction D1, thereby driving the inner carrier 30 to move along the first direction D1. The two-way driving component 52 is configured to drive the second sub-carrier to move relative to the base 11 along the first direction D1, thereby driving the inner carrier 30 to move along the first direction D1. The second magnet 512 of the one-way driving component 51 is installed on three side walls of the first sub-carrier; the second coil 511 and the second position sensing element 952 of the one-way driving component 51 are installed on three side walls of the second sub-carrier or three side walls of the base. The third magnet 522 of the two-way driving component 52 is disposed on two side walls of the second sub-carrier; the third coil 521 of the two-way driving component 52 is disposed on two side walls of the base.

[0245] The second support assembly 70 includes a first-direction support assembly and a second-direction support assembly. The first-direction support assembly rollably supports the first sub-carrier to move along the first direction D1. In the optical axis direction D, the first-direction support assembly is only disposed on one side of the first sub-carrier. For example, the first-direction support assembly is only disposed on the lower side of the first sub-carrier, and is clamped between the first sub-carrier and the second sub-carrier, or is clamped between the first sub-carrier and the base 11. The first-direction support assembly includes at least one of the balls 71, and the balls 71 of the first-direction support assembly are disposed between the first sub-carrier and the second sub-carrier, or between the first sub-carrier and the base 11. The first lateral groove 2101 is disposed between the first sub-carrier and the second sub-carrier, or between the first sub-carrier and the base 11. The second-direction support assembly rollably supports the second sub-carrier to move along the second direction D2. In the optical axis direction D, the second-direction support assembly is only disposed on one side of the second sub-carrier. For example, the second-direction support assembly is only disposed on the lower side of the second sub-carrier, and is clamped between the second sub-carrier and the base 11. The second-direction support assembly includes at least one of the balls 71, and the balls 71 of the second-direction support assembly are disposed between the second sub-carrier and the base 11. The second lateral groove 2102 is disposed between the second sub-carrier and the base 11.

[0246] It is worth mentioning that, as described above, the magnetic member 92 that is used to attract the second magnet 512 and / or the third magnet 522 to make the outer frame 20 approach the bottom wall 111 of the base is defined as the anti-shake magnetic member 9220.

[0247] In an example of the present application, the driving device 1 for the camera module 100 includes four of the anti-shake magnetic members 9220. As Figure 19As shown, the four anti-shake magnetic components 9220 are a first anti-shake magnetic component 923, a second anti-shake magnetic component 924, a third anti-shake magnetic component 925 and a fourth anti-shake magnetic component 926. The four anti-shake magnetic components 9220 are arranged on the base 11 and located on the base bottom wall 111. The first anti-shake magnetic component 923 and the second anti-shake magnetic component 924 are located below the second magnet 512 in the optical axis direction D, and are opposite to the second magnet 512 in the second direction D2 and are separated on both sides of the second magnet 512. Since the third magnet 522 and the second magnet 521 are arranged on adjacent sides, accordingly, one side of the second anti-shake magnetic component 923 is opposite to the second magnet 512, and the other side is opposite to the third magnet 522. The third anti-shake magnetic member 925 is located below the third magnet 522 in the optical axis direction D, is opposite to the third magnet 522 in the first direction D1, and is separated from the second anti-shake magnetic member 925 on both sides of the third magnet 522 in the first direction D1. The fourth anti-shake magnetic member 926 is located below the first magnet 42 in the optical axis direction D, is opposite to the first magnet 42 in the second direction D2, and is separated from the third anti-shake magnetic member 925 on both sides of the first magnet 42 in the second direction D2.

[0248] It is worth mentioning that during the optical image stabilization process, the magnetic force between the anti-shake magnetic component 9220 and the second magnet 512 and the third magnet 522 will form a restoring force, thereby hindering the second magnet 512 and the third magnet 522 from moving in a direction perpendicular to the optical axis direction D according to the expected stroke.

[0249] In order to reduce the influence of the restoring force formed by the magnetic force between the anti-shake magnetic component 9220 and the second magnet 512 and the third magnet 522 on the movement of the second magnet 512 and the third magnet 522 in the direction perpendicular to the optical axis D, at least one of the anti-shake magnetic components 9220 is provided with an opening 9201, and the opening 9201 can be set on the side adjacent to the second magnet 512 and / or the third magnet 522, thereby reducing the magnetic force between the anti-shake magnetic component 9220 and the second magnet 512 and / or the third magnet 522 and reserving sufficient space for the movement of the second magnet 512 and / or the third magnet 522.

[0250] Specifically, in an example of the present application, the first anti-shake magnetic member 923 has the opening 9201 on the side adjacent to the second magnet 512; the second anti-shake magnetic member 924 has the opening 9201 on the side adjacent to the second magnet 512 and on the side adjacent to the third magnet 522, respectively.

[0251] The driving device 1 for the camera module 100 includes a conductive member. The conductive member is electrically conductively connected to the components that need to be conductive in the first driving assembly 40 (for example, the first coil 41 and the first position sensing element 951) and the components that need to be conductive in the second driving assembly 50 (for example, the second coil 511, the third coil 521, the second position sensing element 952, and the third position sensing element 953).

[0252] In the present application, the conductive member can be embedded in the outer frame 20 and / or the base 11. Compared with conducting the focusing coil and the anti-shake coil through a flexible circuit board, it can improve the electrical connection stability to a certain extent and avoid the influence of the force of the flexible circuit board on the outer frame 20 on the anti-shake effect to a certain extent.

[0253] In an embodiment of the present application, the first coil 41 and the first position sensing element 951 are mounted on the outer frame 20; the second coil 511, the third coil 521, the second position sensing element 952, and the third position sensing element 953 are mounted on the base 11. Correspondingly, a part of the conductive member is disposed on the outer frame 20 to be electrically conductively connected to the first coil and the first position sensing element 951; another part of the conductive member is disposed on the base 11 to be electrically conductively connected to the second coil 511, the third coil 521, the second position sensing element 952, and the third position sensing element 953.

[0254] The driving device 1 for the camera module 100 further includes at least one elastic sheet 93. The elastic sheet 93 is conductive. The elastic sheet 93 is connected to the conductive member.

[0255] Correspondingly, the elastic sheet 93 is located between the outer frame 20 and the base 11 and is connected between the part of the conductive member disposed on the outer frame 20 and the part of the conductive member disposed on the base 11.

[0256] In an example of the present application, the driving device 1 for the camera module 100 includes four of the elastic pieces 93. The four elastic pieces 93 are respectively a first elastic piece 931, a second elastic piece 932, a third elastic piece 933, and a fourth elastic piece 934. One end of the first elastic piece 931, one end of the second elastic piece 932, one end of the third elastic piece 933, and one end of the fourth elastic piece 934 are respectively arranged at the upper corner portion of the first frame, the upper corner portion of the second frame, the upper corner portion of the third frame, and the upper corner portion of the fourth frame of the outer frame 20; the other ends of the first elastic piece 931, the second elastic piece 932, the third elastic piece 933, and the fourth elastic piece 934 are respectively provided on the base 11.

[0257] In a modified embodiment of the present application, the first coil 41 and the first position sensing element 951 are installed on the base 11; the second coil 511, the third coil 521, the second position sensing element 952, and the third position sensing element 953 are installed on the base 11. Correspondingly, the conductive member is integrally disposed on the base 11 to be electrically conductively connected to the first coil 41, the first position sensing element 951, the second coil 511, the third coil 521, the second position sensing element 952, and the third position sensing element 953. In this modified embodiment, since the conductive member is integrally disposed on the base 11, there is no need to provide the elastic piece 93 located between the outer frame 20 and the base 11.

[0258] As Figure 2 shown, the driving device 1 for the camera module 100 further includes a plurality of damping members 94. At least one damping member 94 is arranged on the top of the inner carrier 30 for buffering to prevent the inner carrier 30 from directly hitting other components and being damaged when moving along the optical axis direction D. For example, the support member 80; at least one damping member 94 is arranged on the side of the outer frame 20 for buffering to prevent the outer frame 20 from directly hitting other components and being damaged when moving along the first direction D1 and the second direction D2. For example, the base 11.

[0259] In an example of the present application, the driving device 1 for the camera module 100 further includes 12 damping members 94. The 12 damping members 94 are respectively a first damping member 941, a second damping member 942, a third damping member 943, a fourth damping member 944, a fifth damping member 945, a sixth damping member 946, a seventh damping member 947, an eighth damping member 948, a ninth damping member 949, a tenth damping member 9410, an eleventh damping member 9411, and a twelfth damping member 9412. The first damping member 941, the second damping member 942, the third damping member 943, and the fourth damping member 944 are respectively located at the upper corner portions of the first carrier, the second carrier, the third carrier, and the fourth carrier. The fifth damping member 945 and the sixth damping member 946 are disposed on one side wall 21 of the frame, and are respectively located at positions adjacent to the fourth side wall 24 of the frame on the one side wall 21 of the frame and at positions adjacent to the second side wall 22 of the frame on the one side wall 21 of the frame. The seventh damping member 947 and the eighth damping member 948 are disposed on the second side wall 22 of the frame, and are respectively located at positions adjacent to the first side wall 21 of the frame on the second side wall 22 of the frame and at positions adjacent to the third side wall 23 of the frame on the second side wall 22 of the frame. The ninth damping member 949 and the tenth damping member 9410 are disposed on the third side wall 23 of the frame, and are respectively located at positions adjacent to the second side wall 22 of the frame on the third side wall 23 of the frame and at positions adjacent to the fourth side wall 24 of the frame on the third side wall 23 of the frame. The eleventh damping member 9411 and the twelfth damping member 9412 are disposed on the fourth side wall 24 of the frame, and are respectively located at positions adjacent to the third side wall 23 of the frame on the fourth side wall 24 of the frame and at positions adjacent to the first side wall 21 of the frame on the fourth side wall 24 of the frame.

[0260] In summary, the camera module 100 and the driving device for the camera module 100 according to the embodiments of the present application are illustrated. The driving device 1 for the camera module 100 can reduce its height dimension while achieving optical image stabilization and autofocus, thereby reducing the height dimension of the camera module 100.

[0261] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments, and without departing from the principle, the embodiments of the present invention can have any deformation or modification.

Claims

1. A driving device for a camera module, characterized in that: include: External frame; An inner carrier is movably received in the outer frame and is configured to mount an optical lens, wherein the optical lens defines an optical axis and an optical axis direction; A first driving assembly is configured to drive the inner carrier to move relative to the outer frame along the optical axis, comprising a first coil and a first magnet that are arranged opposite to each other; the first magnet is installed on one side of the inner carrier; At least one focusing magnetic attraction member is disposed on a side of the first coil away from the first magnet and has magnetic conductivity so as to attract the first magnet to the first coil; A first support assembly, used to provide support for the inner carrier; as well as Magnetic attraction magnet; Wherein, the inner carrier has a first contact position, a second contact position and a third contact position; in a preset arrangement direction, the first contact position and the second contact position are located on the same side of the first driving assembly, and the third contact position is located on a side of the first driving assembly opposite to the first contact position and the second contact position; At least one component of the first support assembly conflicts with the first contact position, at least one component of the first support assembly conflicts with the second contact position, and at least one component of the first support assembly conflicts with the third contact position, so that a triangular support surface is formed between the first contact position, the second contact position, the third contact position and the first support assembly; In the preset arrangement direction, the resultant force of the magnetic attraction between the inner carrier and the outer frame is biased toward the side where the first contact position and the second contact position are located; the preset arrangement direction is perpendicular to the arrangement direction of the focusing magnetic attraction member and the first magnet; The part of the first supporting component that is in conflict with the first contact position and / or the part that is in conflict with the second contact position has magnetic conductivity, and the magnetic attraction magnet is arranged on the inner carrier and is opposite to the part of the first supporting component that is in conflict with the first contact position and / or the part that is in conflict with the second contact position, so that the resultant force of the magnetic attraction between the inner carrier and the outer frame is offset toward the side where the first contact position and the second contact position are located.

2. The driving device for the camera module according to claim 1, characterized in that: The resultant force of the magnetic attraction between the focusing magnetic attraction member and the first magnet is biased toward the side where the first contact position and the second contact position are located.

3. The driving device for the camera module according to claim 2, characterized in that: The center of the focusing magnetic attraction member is offset toward the first contact position and the second contact position in the preset arrangement direction relative to the center of the first magnet.

4. The driving device for the camera module according to claim 3, characterized in that: The driving device for the camera module also includes a frame circuit board, which is arranged on the outside of the outer frame; the first coil is fixed to the inside of the frame circuit board and electrically connected to the frame circuit board; at least one focusing magnetic suction component is fixed to the outside of the frame circuit board; and a structural reinforcement plate is provided on the portion of the frame circuit board that is biased towards the third contact position.

5. The driving device for the camera module according to claim 4, characterized in that: The focusing magnetic member has at least one first empty slot, and the center of the first empty slot is biased toward the side where the third contact position is located relative to the center of the focusing magnetic member.

6. The driving device for the camera module according to claim 5, characterized in that: The focusing magnetic member has a second empty groove, and in the thickness direction of the focusing magnetic member, the second empty groove corresponds to the central area of ​​the first magnet.

7. The driving device for a camera module according to claim 6, characterized in that: The size of the second slot in the direction of the optical axis is larger than the optical focus driving stroke.

8. The driving device for a camera module according to claim 6, characterized in that: The second empty slot and the first empty slot are the same slot or are connected to each other.

9. The driving device for a camera module according to claim 6, characterized in that: A portion of the frame circuit board corresponding to the first empty slot and / or the second empty slot is provided with a structural reinforcement plate.

10. The driving device for a camera module according to claim 6, characterized in that: The driving device for the camera module also includes a frame circuit board and a first position sensing element, the frame circuit board is arranged on the outer side of the outer frame, the first position sensing element is fixed to the inner side of the frame circuit board and electrically connected to the frame circuit board; at least one of the focusing magnetic suction parts is fixed to the outer side of the frame circuit board; the orthographic projection of the first position sensing element in the thickness direction of the frame circuit board is completely within the first empty groove, and the orthographic projection of the first position sensing element in the thickness direction of the frame circuit board is completely within the second empty groove.

11. The driving device for a camera module according to claim 10, characterized in that: The distance between the orthographic projection of the first position sensing element in the thickness direction of the frame circuit board and the groove wall of the first empty groove is greater than or equal to 0.3 mm; the distance between the orthographic projection of the first position sensing element in the thickness direction of the frame circuit board and the groove wall of the second empty groove is greater than or equal to 0.3 mm.

12. The driving device for a camera module according to claim 1, characterized in that: The magnetic magnet is embedded in the inner carrier.

13. The driving device for a camera module according to claim 1, characterized in that: The distance between the center of the magnetic magnet and the first contact position in the direction of the optical axis is greater than or equal to one-fourth of the distance between the first contact position and the second contact position in the direction of the optical axis and less than or equal to three-fourths of the distance between the first contact position and the second contact position in the direction of the optical axis.

14. The driving device for a camera module according to claim 1, characterized in that: The driving device for the camera module also includes a base, a second driving component and at least one anti-shake magnetic component, the outer frame is movably accommodated in the base, the second driving component is configured to drive the outer frame and drive the inner carrier to move along a first direction and a second direction relative to the base, wherein the first direction and the second direction are respectively perpendicular to the optical axis direction, and the first direction and the second direction are perpendicular to each other; the second driving component includes a one-way driving component and a two-way driving component, the one-way driving component includes a second magnet and a second coil, and the second coil and the second magnet are opposite in the first direction; the two-way driving component includes a third magnet and a third coil, and the third coil and the third magnet are opposite in the second direction; the anti-shake magnetic component is located on the side of the second coil facing away from the second magnet and / or the side of the third coil facing away from the third magnet.

15. The driving device for a camera module according to claim 14, characterized in that: At least one of the anti-shake magnetic components is provided with an opening on a side thereof adjacent to the second magnet and / or the third magnet.

16. A camera module, characterized in that: include: A driving device for a camera module as claimed in any one of claims 1 to 15; Optical lens; as well as The optical lens is arranged in the photosensitive path of the photosensitive component.

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