Camera module and driving device thereof

Abstract

The invention discloses a camera module and a driving device thereof. The driving device for the camera module comprises an outer frame, an inner carrier, a first driving assembly and at least one focusing magnetic attraction piece. The inner carrier is movably accommodated in the outer frame and is configured to install an optical lens; the inner carrier is provided with a first contact position, a second contact position and a third contact position; in the 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, opposite to the first contact position and the second contact position, of the first driving assembly; the first contact position, the second contact position and the third contact position form a triangular position relationship; in the preset arrangement direction, the resultant force of the magnetic attraction force between the inner carrier and the outer frame deviates to 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 specifically, to an imaging module and a driving device thereof. Background Art

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

[0003] However, the camera module is required to meet the requirements of small size while also meeting the requirements of various functions such as optical image stabilization and autofocus. In order 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, and the structure of the camera module will become more complicated. The overall size and weight of the camera module will also be difficult to control within a certain range, which contradicts the requirement of small size of the camera module. Summary of the invention

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

[0005] Another advantage of the present application is that it provides a camera module and a driving device thereof, wherein the driving device for the camera module can improve its stability by arranging the installation position of the optical lens.

[0006] Another advantage of the present application is that it provides a camera module and a driving device thereof, wherein the driving device for the camera module adopts a single-layer rolling support component, which can reduce the height dimension of the driving device for the camera module to a certain extent compared to a double-layer support component.

[0007] Another advantage of the present application is that it provides a camera module and a driving device thereof, wherein the magnets and coils of the driving components of the driving device for the camera module are arranged in the horizontal direction, which can reduce the height dimension of the driving device for the camera module to a certain extent compared to the arrangement of the magnets and coils in the optical axis direction.

[0008] Another advantage of the present application is that it provides a camera module and a driving device thereof, wherein the lower surface of a driving component of the driving device of the camera module for driving the optical lens for automatic focusing is located 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 internal carrier.

[0009] According to one aspect of the present application, there is provided a driving device for a camera module, comprising:

[0010] Base;

[0011] An outer frame is movably received in the base;

[0012] 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;

[0013] A first driving assembly is configured to drive the inner carrier to move relative to the outer frame along the optical axis;

[0014] A second driving assembly 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;

[0015] A first supporting assembly fixedly supports the movement of the inner carrier along the optical axis direction; and

[0016] The second support assembly is configured to rollably support the outer frame to move along the first direction and the second direction.

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

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

[0019] In one embodiment of the driving device for a camera module described in the present application, the inner carrier includes a carrier side wall, a carrier side wall, a carrier side wall and a carrier side wall; the outer frame includes a frame side wall, a frame side wall, a frame side wall and a frame side wall; the base includes a base side wall, a base side wall, a base side wall and a base side wall; the carrier side wall, the frame side wall and the base side wall are opposite to each other along the first direction; the carrier side wall, the frame side wall and the base side wall are opposite to each other along the second direction; the carrier side wall, the frame side wall and the base side wall are opposite to each other along the first direction; wherein the first driving component is arranged between the carrier side wall and the frame side wall, or between the carrier side wall and the base side wall; the one-way driving component is arranged between the frame side wall and the base side wall; the two-way driving component is arranged between the frame side wall and the base side wall.

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

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

[0022] In one 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 one embodiment of the driving device for a camera module according to the present application, the first driving component is arranged on the same side as the first supporting component, wherein the first supporting component is fixed to a side wall of the frame, and a side wall of the carrier is supported by the first supporting component.

[0024] In one embodiment of the driving device for a camera module described in the present application, the second supporting assembly includes at least one ball, and at least one transverse guide groove is provided between the outer frame and the base, and the ball is rollably provided in the transverse guide groove; the transverse guide groove includes a one-way transverse groove and a two-way transverse groove, the length direction of the one-way transverse groove is consistent with the first direction, and the length direction of the two-way transverse 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, comprising:

[0026] External frame;

[0027] 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;

[0028] a first driving assembly, 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 arranged opposite to each other; the first magnet is mounted on one side of the inner carrier; and

[0029] 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;

[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 a 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 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.

[0032] In one embodiment of the driving device for a camera module according to the present application, the resultant force of the magnetic attraction between the focusing magnetic attraction component and the first magnet is biased toward the side where the first contact position and the second contact position are located.

[0033] In one embodiment of the driving device for a camera module according to the present application, the center of the focusing magnetic element 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.

[0034] In one embodiment of the driving device for a camera module according to the present application, the driving device for a 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 a portion of the frame circuit board that is biased towards the third contact position.

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

[0036] In one embodiment of the driving device for a camera module according to the present application, the focusing magnetic component has a second empty groove, and in the thickness direction of the focusing magnetic component, the second empty groove corresponds to the central area of ​​the first magnet.

[0037] In one embodiment of the driving device for a camera module according to the present application, a dimension of the second slot in the direction of the optical axis is larger than the optical focus driving stroke.

[0038] In one 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 are interconnected.

[0039] In one embodiment of the driving device for a camera module according to the present application, 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.

[0040] In one embodiment of the driving device for a camera module according to the present application, the driving device for a camera module also includes a frame circuit board and a first position sensing element, the frame circuit board is arranged on the outside of the outer frame, the first position sensing element is fixed to the inside 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 outside 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.

[0041] In one embodiment of the driving device for a camera module described in 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 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.

[0042] In one embodiment of the driving device for a camera module according to the present application, the driving device for a camera module further includes a first supporting assembly and a magnetic magnet, at least one component of the first supporting assembly conflicts with the first contact position and / or the second contact position, wherein the component of the first supporting assembly that conflicts with the first contact position and / or the component that conflicts with the second contact position has magnetic conductivity, and the magnetic magnet is arranged on the inner carrier and is opposite to the component of the first supporting assembly that conflicts with the first contact position and / or the component that conflicts with the second contact position.

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

[0044] In one embodiment of a driving device for a camera module according to the present application, 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 is 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.

[0045] In one embodiment of the driving device for a camera module according to the present application, 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.

[0046] In one embodiment of the driving device for a camera module according to the present application, 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.

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

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

[0049] Optical lenses; and

[0050] The optical lens is arranged in the photosensitive path of the photosensitive component.

[0051] Further objectives and advantages of the present application will be fully reflected through understanding of the following description and drawings.

[0052] These and other objects, features and advantages of the present application are fully reflected in 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 accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying 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 of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0054] Figure 1 The figure shows a schematic three-dimensional diagram of a driving device for a camera module according to an embodiment of the present application.

[0055] Figure 2 The figure shows an exploded view of a driving device for a camera module according to an embodiment of the present application.

[0056] Figure 3 The figure shows a schematic disassembly diagram of a driving device for a camera module according to an embodiment of the present application.

[0057] Figure 4 The figure shows a partial disassembly diagram of a driving device for a camera module according to an embodiment of the present application.

[0058] Figure 5 The figure shows a partial stereoscopic schematic diagram of a driving device for a camera module according to an embodiment of the present application.

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

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

[0061] Figure 8 Another partial disassembly diagram of a driving device for a camera module according to an embodiment of the present application is illustrated.

[0062] Fig. 9 The figure illustrates another partial disassembly diagram of the driving device for the camera module according to the embodiment of the present application.

[0063] Fig.10 A schematic cross-sectional view of a driving device for a camera module according to an embodiment of the present application is illustrated.

[0064] Fig.11 Another cross-sectional schematic diagram of a driving device for a camera module according to an embodiment of the present application is illustrated.

[0065] Fig.12 The figure shows a schematic three-dimensional diagram of a modified implementation of a driving device for a camera module according to an embodiment of the present application.

[0066] Fig.13 The figure shows an exploded view of a modified implementation of a driving device for a camera module according to an embodiment of the present application.

[0067] Fig.14 The figure shows a disassembly diagram of a modified implementation of a driving device for a camera module according to an embodiment of the present application.

[0068] Fig.15 A partial stereoscopic schematic diagram of a modified implementation of a driving device for a camera module according to an embodiment of the present application is illustrated.

[0069] Fig.16 A partial cross-sectional schematic diagram of a modified implementation of a driving device for a camera module according to an embodiment of the present application is illustrated.

[0070] Fig.17 Another partial cross-sectional schematic diagram of a modified implementation of a driving device for a camera module according to an embodiment of the present application is illustrated.

[0071] Fig.18 The figure illustrates another partial cross-sectional schematic diagram of a modified implementation of the driving device for the camera module according to the embodiment of the present application.

[0072] Fig.19The figure shows a partial disassembly diagram of a modified implementation of a driving device for a camera module according to an embodiment of the present application.

[0073] Fig. 20 Another partial disassembly diagram of a modified implementation of a driving device for a camera module according to an embodiment of the present application is illustrated.

[0074] Fig.21 A partial stereoscopic schematic diagram of a modified implementation of a driving device for a camera module according to an embodiment of the present application is illustrated.

[0075] Fig. 22 The figure shows a block diagram of a camera module according to an embodiment of the present application. DETAILED DESCRIPTION

[0076] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described here.

[0077] The camera module is required to meet the requirements of small size while also meeting the requirements of various functions such as optical image stabilization and autofocus. In order 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, and the structure of the camera module will become more complicated. The overall size and weight of the camera module will also be difficult to control within a certain range, which contradicts the requirement of small size of the camera module.

[0078] The present application aims to reduce the height of the driving device as much as possible from the perspective of the overall structural design and component layout of the driving device, thereby reducing the height 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, the height dimension of the driving device for the camera module can be reduced to a certain extent compared with the use of a double-layer support assembly. In the present application, by providing transverse guide grooves in different directions, the support stability can be ensured even if a single-layer rolling support assembly is used.

[0080] Based on this, the present application proposes a driving device for a camera module, which includes: a base, an outer frame, an inner carrier, a first driving assembly, a second driving assembly, a first supporting assembly, and a second supporting assembly. The outer frame is movably accommodated in the base; the inner carrier is movably accommodated in the outer frame and is configured to install an optical lens, and the optical lens defines an optical axis and an optical axis direction; the first driving assembly is configured to drive the inner carrier to move relative to the outer frame along the optical axis direction; the second driving assembly 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 assembly fixedly supports the movement of the inner carrier along the optical axis direction; the second supporting assembly rollably supports the movement of the outer frame along the first direction and the second direction.

[0081] The present application also proposes a camera module and a driving device thereof, which includes an outer frame, an inner carrier, a first driving component and at least one focusing magnetic member. The inner carrier is movably accommodated in the outer frame and is configured to install 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 toward the side where the first contact position and the second contact position are located.

[0082] After introducing the basic principles of the present application, various non-limiting embodiments of the present application will be described in detail with reference to the accompanying drawings.

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

[0084] Specifically, Fig. 22 As 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 installed on the photosensitive component 3. The optical lens 2 is installed on the driving device 1 for the camera module 100 and is located on the photosensitive 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 autofocus and optical image stabilization functions.

[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 to the side of the chip circuit board facing the optical lens 2. At least one of the electronic components can be implemented as a passive electronic device such as a capacitor, a resistor, or an active electronic device such as a diode, a memory chip, and at least one of the electronic components can be arranged on the 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, which is arranged on the light sensing path of the photosensitive component 3, so that the camera module 100 can filter out unnecessary stray light (for example, infrared rays) through the filter component. For example, the filter component is arranged 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] like Figure 1 and Figure 2 as well as Fig.12 and Fig.13As shown, the driving device 1 for the camera module 100 includes an outer shell 10, an outer frame 20, an inner carrier 30, a first driving assembly 40, a second driving assembly 50, a first supporting assembly 60 and a second supporting assembly 70. The outer frame 20 is accommodated in the outer shell 10. The inner carrier 30 is accommodated in the outer frame 20 and is configured to install the optical lens 2 therein. The inner carrier 30 is also configured to be suitable for moving along a set optical axis direction D relative to the outer frame 20. The outer frame 20 is configured to be suitable for moving along a first direction D1 and a second direction D2 relative to the outer shell 10 and driving the inner carrier 30 to move along the first direction D1 and the second direction D2. The first driving assembly 40 is configured to drive the inner carrier 30 to move along the optical axis direction D relative to the outer frame 20 for automatic focusing. The second driving assembly 50 is configured to drive the outer frame 20 to move along the first direction D1 and the second direction D2 relative to the outer shell 10, 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 to perform 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 assembly 60 is used to guide the inner carrier 30 to move along the optical axis direction D. The second supporting assembly 70 is used to guide the outer frame 20 to move along the first direction D1 and the second direction D2.

[0089] The present application defines the optical axis direction D through 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 the present application adopts the design of internal focus and external anti-shake, that is, the first drive assembly 40 for autofocus and the inner carrier 30 are arranged inside the second drive assembly 50 for optical anti-shake and the outer frame 20, such a design helps to improve the accuracy of autofocus and the flexibility of component arrangement of optical anti-shake, as well as the accuracy of optical anti-shake. The inside and outside mentioned in the present application are relative to the optical axis of the optical lens 2, the direction close to the optical axis is called the inside, and the direction relatively far from the optical axis is called the outside.

[0091] Specifically, the focusing function has certain requirements for focusing speed and focusing accuracy. The key factor to achieve a better focusing effect is to be able to quickly and accurately adjust the position of the lens to achieve a clear image. In the present application, the inner carrier 30 used for moving when performing autofocus is arranged in the outer frame 20 used for moving when performing optical image stabilization. When performing autofocus, only the inner carrier 30 needs to be moved to drive the optical lens 2 to move, which makes the weight of the components that need to be driven by the first drive assembly 40 for autofocus relatively small. In this way, the first drive assembly 40 for autofocus can adjust the position of the optical lens 2 more quickly, and accordingly, the optical lens 2 can respond more quickly to the drive of the first drive assembly 40 for autofocus, thereby achieving fast focusing.

[0092] The relatively small weight of the components that the first drive assembly 40 needs to drive for autofocus means that the weight of the components that the first drive assembly 40 needs to drive for autofocus is relatively small relative to the weight of the components that the second drive assembly 50 needs to drive for optical image stabilization. Specifically, when autofocusing is performed, only the inner carrier 30 needs to be moved to drive the optical lens 2 to move; when optical image stabilization is performed, the second drive assembly 50 needs to drive the outer frame 20, the inner carrier 30 and the first drive assembly 40 to drive the optical lens 2 to move. In other words, the components that the first drive assembly 40 needs to drive for autofocus mainly include the inner carrier 30 and the optical lens 2; the components that the second drive assembly 50 needs to drive for optical image stabilization include not only the inner carrier 30 and the optical lens 2, but also the outer frame 20 and the first drive assembly 40. Therefore, the weight of the components that the first drive assembly 40 needs to drive for autofocus is obviously smaller than the weight of the components that the second drive assembly 50 needs to drive for optical image stabilization.

[0093] Furthermore, the focusing movement stroke of the optical lens 2 is relatively large, and the first driving assembly 40 for automatic focusing 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. Furthermore, benefiting from the relatively small weight of the components that need to be driven by the first driving assembly 40, the first driving assembly 40 can more accurately control the movement of the optical lens 2, which helps to improve the focusing accuracy.

[0094] The second driving assembly 50 for performing optical image stabilization can be designed to be arranged around the outer circumference of the outer frame 20, which makes the arrangement of the second driving assembly 50 for performing optical image stabilization more flexible. And the anti-shake movement stroke is smaller than the focus movement stroke, and the second driving assembly 50 for performing optical image stabilization can control the movement of the optical lens 2 more easily, which helps to improve the accuracy of optical image stabilization and reduce the situation of over-compensation or under-compensation.

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

[0096] In one embodiment of the present application, Figure 2 , Figure 3 , Figure 4 , Fig.13 as well as Fig.14 As shown, the outer shell 10 includes a base 11 and a top cover 12, wherein the top cover 12 and the base 11 are buckled together 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] Accordingly, more specifically, in this embodiment, the outer frame 20 is configured to be suitable for moving along the first direction D1 and the second direction D2 relative to the base 11 and driving the inner carrier 30 to move along the first direction D1 and the second direction D2. The second driving assembly 50 is configured to drive the outer frame 20 to move along the first direction D1 and the second direction D2 relative to the base 11, 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, so as to perform optical image stabilization.

[0098] In this embodiment, the base 11 includes a base bottom wall 111 and a base peripheral wall 112, wherein the base peripheral wall 112 extends upward from the base bottom wall 111. The base peripheral wall 112 includes a base side wall 1121, a base side wall 1122, a base side wall 1123, and a base side wall 1124. The base side wall 1121 is opposite to the base side wall 1123 in the first direction D1. The base side wall 1122 is opposite to the base side wall 1124 in the second direction D2. The base 11 has a base through hole 1101, and the base through hole 1101 passes through 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, wherein 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 passes through 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, but only with the top cover top wall 121. When the top cover top wall 121 covers the base peripheral wall 112, it is enclosed with the base 11 to form the receiving cavity 1001.

[0101] The outer frame 20 is movably received in the receiving cavity 1001 of the outer shell 10. More specifically, the outer frame 20 is movably disposed in the base 11.

[0102] like Figures 4 to 7 as well as Figures 15 to 20 As shown, the outer frame 20 includes a frame side wall 21, a frame side wall 22, a frame side wall 3 23, and a frame side wall 4 24, wherein the frame side wall 21 is opposite to the frame side wall 3 23 in the first direction D1, and the frame side wall 22 is opposite to the frame side wall 4 24 in the second direction D2. The outer frame 20 has a frame through groove 201, and the frame through groove 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 in the optical axis direction D.

[0103] The frame upper surface 202 includes a frame 1 upper side, a frame 2 upper side, a frame 3 upper side, and a frame 4 upper side, wherein the frame 1 upper side and the frame 3 upper side are opposite to each other in the first direction D1, and the frame 2 upper side and the frame 4 upper side are opposite to each other in the second direction D2. The connection between the frame 1 upper side and the frame 2 upper side forms a frame 1 upper corner; the connection between the frame 2 upper side and the frame 3 upper side forms a frame 2 upper corner; the connection between the frame 3 upper side and the frame 4 upper side forms a frame 3 upper corner; the connection between the frame 4 upper side and the frame 1 upper side forms a frame 4 upper corner.

[0104] The frame bottom surface 203 includes a frame bottom side, a frame bottom side 2, a frame bottom side 3, and a frame bottom side 4, wherein the frame bottom side and the frame bottom side 3 are opposite to each other in the first direction D1, and the frame bottom side 2 and the frame bottom side 4 are opposite to each other in the second direction D2. The frame bottom side and the frame bottom side are connected to form a frame bottom corner; the frame bottom side and the frame bottom side are connected to form a frame bottom corner; the frame bottom side and the frame bottom side are connected to form a frame bottom corner; the frame bottom side and the frame bottom side are connected to form a frame bottom corner.

[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 carrier side wall 31, a carrier side wall 2 32, a carrier side wall 33, and a carrier side wall 4 34. The carrier side wall 31 is opposite to the carrier side wall 33 in the first direction D1, and the carrier side wall 2 32 is opposite to the carrier side wall 4 34 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 a carrier upper surface 302 and a carrier lower surface 303. The carrier upper surface 302 and the carrier lower surface 303 are opposite in the optical axis direction D.

[0107] The side wall 1121 of the base, the side wall 21 of the frame and the 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; 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 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; 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 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; 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 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.

[0108] The upper surface 302 of the carrier includes an upper side of the carrier 1, an upper side of the carrier 2, an upper side of the carrier 3, and an upper side of the carrier 4. The upper side of the carrier 1 and the upper side of the carrier 3 are opposite to each other in the first direction D1. The upper side of the carrier 2 and the upper side of the carrier 4 are opposite to each other in the second direction D2. The upper corner of the carrier 1 is formed at the junction of the upper side of the carrier 1 and the upper side of the carrier 2; the upper corner of the carrier 2 is formed at the junction of the upper side of the carrier 2 and the upper side of the carrier 3; the upper corner of the carrier 3 and the upper side of the carrier 4 are formed at the junction of the upper side of the carrier 3 and the upper corner of the carrier 3; the upper corner of the carrier 4 is formed at the junction of the upper side of the carrier 4 and the upper side of the carrier 1.

[0109] In this application Figures 1 to 11 In the illustrated embodiment, 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 passes through 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 installation 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. Accordingly, in theory, 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 installed 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 one embodiment of the present application, the center of the lens mounting cavity 101 is designed to be consistent with the center of the driving device 1 for the camera module 100, or the center of the lens mounting cavity 101 is designed to be 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, so as to reduce the instability caused by excessive center deviation of the optical lens 2, wherein 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 in the assembly of components, and errors within 1 mm are allowed. Accordingly, here, the center of the lens mounting cavity 101 is consistent with the center of the driving device 1 for the camera module 100, which 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. Correspondingly, 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 one embodiment of the present application, the center of the top cover through hole 1201, the center of the support member through hole 801, the center of the frame through slot 201, the center of the carrier through hole 301 and the center of the base through hole 1101 are all located on the optical axis of the optical lens 2 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 with the optical lens 2 installed, 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 drive balance after the optical lens 2 is installed, and reduces the instability caused by excessive center offset of the optical lens 2.

[0115] In the present application, it can be designed 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 installed 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 be installed with a driving assembly, the center of gravity of the outer frame 20 and the inner carrier 30 is biased toward the side where the driving assembly is 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 assembly 40 is installed on the outer side of the inner carrier 30. Specifically, the first driving assembly 40 is installed between the inner carrier 30 and the outer frame 20 or between the inner carrier 30 and the base 11. The second driving assembly 50 is installed on the outer side of the outer frame 20. Specifically, the second driving assembly 50 is installed between the outer frame 20 and the base 11.

[0117] More specifically, the first driving assembly 40 is installed 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 assembly 50 includes a one-way driving assembly 51 and a two-way driving assembly 52. ​​The one-way driving assembly 51 is configured to drive the outer frame 20 to move along the first direction D1 relative to the base 11, and drive the inner carrier 30 and the optical lens 2 to move along the first direction D1 through the outer frame 20. The two-way driving assembly 52 is configured to drive the outer frame 20 to move along the second direction D2 relative to the base 11, and drive the inner carrier 30 and the optical lens 2 to move along the second direction D2 through the outer frame 20. The one-way driving assembly 51 is installed between the frame three side walls 23 of the outer frame 20 and the base three side walls 1123 of the base 11. The two-way driving assembly 52 is installed between the two side walls 22 of the outer frame 20 and the two side walls 1122 of the base 11 .

[0118] In the embodiment of the present application, the inner carrier 30 and the outer frame 20 are driven by the cooperation of the magnet and the coil. Accordingly, the first driving component 40 includes a first coil 41 and a first magnet 42. The one-way driving component 51 includes a second coil 511 and a second magnet 512. The two-way driving component 52 includes a third coil 521 and a third magnet 522.

[0119] It is worth mentioning that in this application, Fig.16As shown, the magnets and coils of the driving assembly are arranged in the transverse direction, which can reduce the height dimension of the driving device 1 for the camera module 100 to a certain extent compared with the arrangement of the magnets and coils in the optical axis direction D. The transverse direction refers to the direction perpendicular to the optical axis direction D. In the present application, the transverse direction is consistent with the horizontal direction.

[0120] Specifically, the first driving component 40 is a dynamic magnetic structure. The dynamic magnetic structure means that under the interaction between the coil and the magnet, the magnet moves, thereby driving 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 modified embodiment of the present application, the first magnet 42 is installed on the outer surface of a side wall 31 of the carrier, and the first coil 41 is installed on the inner surface of a side wall 1121 of the base.

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

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

[0124] In this 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 on the outside of the outer frame 20; the first coil 41 is fixed to the inside 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 arranged 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; the first coil 41 is at least partially 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 component 51 is a dynamic magnetic structure. The second coil 511 and the second magnet 512 are arranged on the third side of the outer frame 20, that is, the side where the three side walls 23 of the frame 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 installed on the outer surface of the three side walls 23 of the frame. The second coil 511 is installed on the inner surface of the three side walls 1123 of the base.

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

[0127] In one example of this application, Figure 7 As shown, the frame three side wall 23 has a frame two groove 205, and the frame two groove 205 is formed concavely on the outer surface of the frame three side wall 23. The second magnet 512 is at least partially embedded in the frame two groove 205. Figure 4 As shown, the base 11 has a base first groove 1102, and the base first groove 1102 is formed concavely on the inner surface of the base third side wall 1123. The second coil 511 is at least partially embedded in the base first groove 1102.

[0128] The two-way driving assembly 52 is a dynamic magnetic structure. The third coil 521 and the third magnet 522 are arranged on the second side of the outer frame 20, that is, the side where the second side wall 22 of the frame is 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 installed on the outer surface of the second side wall 22 of the frame. The third coil 521 is installed on the inner surface of the second side wall 1122 of the base.

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

[0130] In an example of the present application, the frame second side wall 22 has a frame third groove 206, and the frame third groove 206 is formed concavely on the outer surface of the frame second side wall 22. The third magnet 522 is at least partially embedded in the frame third groove 206. The base 11 has a base second groove 1103, and the base second groove 1103 is formed concavely on the inner surface of the base second side wall 1122. The third coil 521 is at least partially embedded in the base second groove 1103.

[0131] As described above, in the present application, the first drive component 40, the one-way drive component 51, and the two-way drive component 52 are all moving magnetic structures. Accordingly, 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 the subsequent wiring of the first coil 41, the second coil 511, and the third coil 521 to achieve electrical conduction of the first coil 41, the second coil 511, and the third coil 521. Specifically, on the one hand, the mounting carrier of the first coil 41 (i.e., the outer frame 20 or the base 11) is similar to or the same as the mounting carrier of the second coil 511 and the third coil 521 (i.e., the base 11), so that the wiring of the first coil 41, the second coil 511, and the third coil 521 is 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, which facilitates the conductive parts electrically connected to the first coil 41, the second coil 511 and the third coil 521 to extend outward.

[0132] It should be understood that the positions of the first coil 41 and the first magnet 42 can be interchanged; the positions of the second coil 511 and the second magnet 512 can be interchanged; and 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 used solely for autofocus drive and are not used for optical image stabilization; the second magnet 512 and the second coil 511, as well as the third magnet 522 and the third coil 521 are used solely 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. Accordingly, 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 on 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 on which the driving component is not provided can be adjacent to the other camera modules to avoid magnetic interference between multiple camera modules.

[0135] In the 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. Accordingly, 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 consistent with the sides 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 avoid mutual interference between the first driving component 40, the one-way driving component 51 and the two-way driving component 52 to a certain extent, which helps to ensure the driving stability of each. On the other hand, it increases the layout space of each magnet and the overall magnetic field is 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 achieving anti-shake drive and the first magnet 42 for achieving focus drive are arranged on different sides of the driving device 1 for the camera module 100, which 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, and the overall magnetic field of the first magnet 42, the second magnet 512 and the third magnet 522 is more evenly distributed, which helps to improve the anti-shake and focusing effects.

[0138] It is worth mentioning that in one embodiment of the present application, the lower surface of the first driving component 40 for driving the optical lens 2 for autofocusing of the driving device 1 for the camera module 100 is at a relatively low height. 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 bottom surface of the third coil 521 of the second driving component 50. In this way, it is not only conducive to reducing the height dimension of the driving device 1 for the camera module 100, and thus reducing the height dimension of the camera module 100, but also can increase the focus movement stroke, thereby improving the focus function of the camera module 100.

[0139] It should be understood that the larger the size of the first magnet 42 and the first coil 41 in the height direction of the driving device 1 for 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 size of the first magnet 42 and the first coil 41 in the height direction of the driving device 1 for the camera module 100 may cause the height dimension of the driving device 1 for the camera module 100 to increase. In the present application, the size of the first magnet 42 and the first coil 41 in the height direction of the driving device 1 for the camera module 100 is increased by extending the first magnet 42 and the first coil 41 downward to increase the focus movement stroke, thereby improving the focus function of the camera module 100. Further, it is also possible to avoid increasing the height dimension of the driving device 1 for 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 for the camera module 100.

[0140] Correspondingly, extending the first magnet 42 and the first coil 41 downward or moving the first magnet 42 and the first coil 41 downward as a whole eventually results in: the bottom surface of the first magnet 42 of the first drive component 40 is lower than the bottom surface of the second magnet 512 of the second drive component 50 and / or the bottom surface of the third magnet 522; the bottom surface of the first coil 41 of the first drive component 40 is lower than the bottom surface of the second coil 511 and / or the third coil 521 of the second drive component 50.

[0141] In one embodiment of the present application, Figure 2 and Fig.13 As 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 magnetic yokes 91, which are respectively a first magnetic yoke 911, a second magnetic yoke 912 and a third magnetic yoke 913. The first magnetic yoke 911 is opposite to the first magnet 42 in the 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 magnetic yoke 912 is opposite to the second magnet 512 in the 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 unidirectional anti-shake magnet, that is, the second magnet 512, and reduce magnetic leakage. The third magnetic yoke 913 is opposite to the third magnet 522 in the 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 bidirectional 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 one embodiment of the present application, Figure 2 and Fig.13As shown, the driving device 1 for the camera module 100 further includes a magnetic member 92. At least one of the magnetic members 92 is located on a side of the first coil 41 away from the first magnet 42. The magnetic member 92 has magnetic conductivity and can attract the first magnet 42. The attraction between the magnetic member 92 and the first magnet 42 makes the inner carrier 30 and the outer frame 20 approach each other, and the inner carrier 30 is supported by the first supporting assembly 60, which can improve the driving stability and prevent the inner carrier 30 and the outer frame 20 from falling.

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

[0146] In another embodiment of the present application, the magnetic member 92 may also be embedded in the base 11, and more specifically, the magnetic member 92 is embedded in a side wall 1121 of the base 11, so that the magnetic member 92 and the first magnet 42 are opposite to each other in the horizontal direction. The inner carrier 30 and the base 11 are brought closer to each other by the attraction between the magnetic member 92 and the first magnet 42, 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. Of course, the outer frame 20 can be clamped between the inner carrier 30 and the side wall 1121 of the base.

[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 member 92 are integrally connected to have an integral structure. In another embodiment of the present application, the second magnetic yoke 912, the third magnetic yoke 913 and the magnetic member 92 are separately connected to have a split structure.

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

[0149] Furthermore, in one embodiment of the present application, the magnetic component 92 can also be embedded in the base 11, and more specifically, the magnetic component 92 is embedded in the second base side wall 1122 and the third base side wall 1123 of the base 11, so that the magnetic component 92 is respectively opposite to the second magnet 512 and the third magnet 522 in the horizontal direction, and the second support assembly 70 is clamped between the outer frame 20 and the bottom wall 111 of the base through the attraction between the magnetic component 92 and the second magnet 512 and the third magnet 522.

[0150] The present application defines the magnetic member 92 used for attracting the first magnet 41 so that the outer frame 20 and the inner carrier 30 are close to each other as a focus magnetic member 9210, and defines the magnetic member 92 used for attracting the second magnet 512 and / or the third magnet 522 so that the outer frame 20 and the bottom wall 111 of the base are close to each other as an anti-shake magnetic member 9220. Accordingly, the magnetic member 92 includes a focus magnetic member 9210 and an anti-shake magnetic member 9220.

[0151] In one embodiment of the present application, Fig.19 As shown, the driving device 1 for the camera module 100 includes at least one focusing magnetic member 9210. The focusing magnetic member 9210 is located on the side of the first coil 41 away from the first magnet 42. The focusing magnetic member 9210 has magnetic conductivity and can attract the first magnet 42. The attraction between the focusing magnetic member 9210 and the first magnet 42 makes the inner carrier 30 and the outer frame 20 close to each other, and the inner carrier 30 is supported by the first supporting 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 elements is disposed on the outer frame 20. Figures 12 to 21 In the embodiment in which the frame circuit board 25 is provided on the outer frame 20, at least one of the focusing magnetic elements 9210 can be provided on the outer frame 20 in a manner 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 elements 9210 can be fixed to the outside of the frame circuit board 25. The attraction between the magnetic element 92 and the first magnet 42 causes the inner carrier 30 to be adsorbed on the side of the outer frame 20 where the magnetic element 92 is provided.

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

[0154] In one embodiment of the present application, the driving device 1 for the camera module 100 includes at least one anti-shake magnetic component 9220. The anti-shake magnetic component 9220 has magnetic conductivity and can attract the second magnet 512 and / or the third magnet 522. The attraction between the anti-shake magnetic component 9220 and the second magnet 512 and / or the third magnet 522 makes the outer frame 20 and the base 11 close to 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 anti-shake magnetic component 9220 can be embedded in the base 11, and more specifically, the anti-shake magnetic component 9220 is embedded in the second side wall 1122 and / or the third side wall 1123 of the base 11, so that the anti-shake magnetic component 9220 is horizontally opposite to the second magnet 512 and / or the third magnet 522, and the second support assembly 70 is clamped between the outer frame 20 and the bottom wall 111 of the base through the attraction between the anti-shake magnetic component 9220 and the second magnet 512 and / or the third magnet 522.

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

[0157] like Figure 2 and Fig.13 As shown, 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 one example of the present application, the first position sensing element 951 is opposite to the first magnet 42 and can be set in the first coil 41; the second position sensing element 952 is opposite to the second magnet 512 and can be set in the second coil 511; the third position sensing element 953 is opposite to the third magnet 522 and can be set 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 may be Hall sensors, inductive encoder chips in combination with capacitors, or TMR.

[0160] In the embodiment of the present application, the first support assembly 60 and the second support assembly 70 are used to provide guidance and support for 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 one embodiment of the present application, the first support assembly 60 is a fixed support assembly, that is, it is fixedly installed inside the driving device 1 for the camera module 100, and the first support assembly 60 does not move when the inner carrier 30 moves. Accordingly, the first support assembly 60 fixedly supports the movement of the inner carrier 30 along the optical axis direction D.

[0162] The first support assembly 60 can be designed to be arranged on the side where the first drive assembly 40 is located. In this way, the point of action of the force generated by the first drive assembly 40 is closer to the first support assembly 60, thereby reducing the overturning moment generated during focusing. The moment of tilt or offset generated by the inner carrier 30 is small, so that the inner carrier 30 is not easy 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 drive assembly 40 can respond to the focus instruction more quickly, achieving fast and accurate focusing.

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

[0164] Specifically, in one example, Figure 4 and Fig.15 As shown, the first support assembly 60 is disposed between the inner carrier 30 and the outer frame 20, and is located between a side wall 31 of the carrier and a side wall 21 of the frame. Accordingly, the first support assembly 60 is disposed on the inner side of the outer frame 20. A longitudinal guide groove 230 is disposed 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 support assembly 60 can be tightly matched with the longitudinal guide groove 230, that is, tightly matched, or loosely matched with the longitudinal guide groove 230, that is, with a certain degree of mobility.

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

[0166] In one embodiment of the present application, the first support assembly 60 is implemented as a guide rod 610. Accordingly, the first support 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. Furthermore, the guide rod 610 has good linearity, which can further prevent the inner carrier 30 from tilting.

[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, extends 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 lower portion 81 and a support higher portion 82, and the support higher portion 82 protrudes upward relative to the support lower portion 81, so that the support lower portion 81 and the support higher portion 82 form a stepped structure with a height difference. The support higher portion 82 extends integrally from the support lower portion 81. The support lower portion 81 is fixed to the outer frame 20, so that the support member 80 is fixed as a whole above the inner carrier 30 and the outer frame 20. The upper end of the guide rod 610 abuts against the support higher 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] Furthermore, the lower end of the guide rod 610 is embedded in the frame protrusion 207 to penetrate into the outer frame 20 to increase 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 embedded in 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 concavely formed on the inner surface of the base bottom wall 111, and the frame protrusion 207 is embedded in the base bottom groove 1104, so that the frame protrusion 207 is accommodated in the base bottom groove 1104, which is convenient for locating the position of the guide rod 610 and can 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, the first guide rod 61 and the second guide rod 62 are both arranged on the first side of the inner carrier 30, and are opposite in the second direction D2, and are located on both sides of the first magnet 42. More specifically, the first guide rod 61 is disposed between the carrier side wall 31 and the frame side wall 21, and is located near the carrier four side walls 34; the second guide rod 62 is disposed between the carrier side wall 31 and the frame side wall 21, and is located near the carrier two side walls 32. It should be understood that the positions of the first guide rod 61 and the second guide rod 62 are interchangeable, that is, it can be designed that the first guide rod 61 is located near the carrier two side walls 32 and the second guide rod 62 is located near the carrier four side walls 34. The point of action 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, the first guide rod 61 and the second guide rod 62 are both 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, and the first frame protrusion 2071 and the second frame protrusion 2072 extend inward from a side wall 21 of the frame, that is, extend 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 end of the first guide rod 61 and the upper end of the second guide rod 62 abut against the support member 80. Specifically, the upper end of the first guide rod 61 and the upper end of the second guide rod 62 abut against the support high portion 82 of the support member 80.

[0173] Further, the lower end of the first guide rod 61 is embedded in the first frame protrusion 2071, and the lower end of the second guide rod 62 is embedded in the second frame protrusion 2072, so as to be deeply inserted into the outer frame 20 to increase the fixing stability. Accordingly, the first guide rod 61 has a first lower protrusion located 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 located 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 one example of the present application, the guide rod 610 is integrally formed with the outer frame 20. For example, the guide rod 610 is embedded in the outer frame 20 during the injection molding process of 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 drive device 1. Furthermore, the support member 80 can also be eliminated to further reduce the height of the drive 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 using an insert injection molding process. Of course, a connecting 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 using 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. The first guide rod 61 is at least partially located in the first longitudinal guide groove 2301 , and the second guide rod 62 is at least partially located in the second longitudinal guide groove 2302 , so that the inner carrier 30 is suitable for stably moving along the first guide rod 61 and the second guide rod 62 along the optical axis direction D.

[0177] The first guide rod 61 is tightly matched with the first longitudinal guide groove 2301. The second guide rod 62 is loosely matched with the second longitudinal guide groove 2302. It should be understood that the first guide rod 61 is tightly matched with the first longitudinal guide groove 2301, and the second guide rod 62 is loosely matched with the second longitudinal guide groove 2302, which can reduce the difficulty of assembling the inner carrier 30 and the outer frame 20.

[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 to each other in the first direction D1. The first carrier longitudinal semi-guide groove 23011 is formed on the outer surface of a carrier side wall 31 of the inner carrier 30; the first frame longitudinal semi-guide groove 23012 is formed on the inner surface of a frame side wall 21 of the outer frame 20.

[0179] The cross-section of the first carrier longitudinal semi-guide groove 23011 and / or the first frame longitudinal semi-guide groove 23012 may be in a “V” shape.

[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 are opposite to each other in the first direction D1. The second carrier longitudinal semi-guide groove 23021 is formed on the outer surface of a carrier side wall 31 of the inner carrier 30; the second frame longitudinal semi-guide groove 23022 is formed on the inner surface of a frame side wall 21 of the outer frame 20.

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

[0182] It is worth mentioning that the contact position, number and area of ​​the guide rod 610 and the longitudinal guide groove 230 will affect the wear degree of the inner carrier 30. The present application reduces the wear of the inner carrier 30 caused by long-term movement by designing the contact position and number of the guide rod 610 and the longitudinal guide groove 230, thereby improving the durability and reliability of the inner carrier 30, and further improving the durability and reliability of the driving device 1 for the camera module 100.

[0183] In one embodiment of the present application, Fig.21 As 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 the preset arrangement direction, the first contact position 305 and the second contact position 306 are located on the same side of the first drive assembly 40, and the third contact position 307 is located on the side of the first drive assembly 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 suction member 9210 and the first magnet 42. In an example of the present 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 the embodiment of the present application, at least one component of the first support component 60 conflicts with the first contact position 305, at least one component of the first support component 60 conflicts with the second contact position 306, and at least one component of the first support component 60 conflicts with the third contact position 307, so that 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 support component 60.

[0185] Specifically, in one 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 carrier lower surface 303 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-guide groove 23011, and the two contact protrusions located on the groove wall of the first carrier longitudinal semi-guide groove 23011 are respectively a first contact protrusion and a second contact protrusion, and the position of the first contact protrusion and the position of the second contact protrusion respectively form the first contact position 305 and the second contact position 306 of the inner carrier 30. In this embodiment, the cross-section of the first carrier longitudinal semi-guide groove 23011 and / or the first frame longitudinal semi-guide groove 23012 may be in a "V" shape; the groove wall of the second carrier longitudinal semi-guide groove 23021 is a plane as a whole, so that during the movement of the inner carrier 30 relative to the outer frame 20, the inner carrier 30 is guided mainly by the limiting relationship between the first guide rod 61 and the first carrier longitudinal semi-guide groove 2301, and at the same time, the problem of being unable to assemble due to tolerance problems is avoided. The inner carrier 30 has a contact protrusion on the groove wall of the second carrier longitudinal semi-guide groove 23021 . The contact protrusion located on the groove wall of the second carrier longitudinal semi-guide groove 23021 is a third contact protrusion, and the position of the third contact protrusion forms the third contact position 307 .

[0187] In the optical axis direction D, the height of the third contact protrusion is higher than the height of the second contact protrusion and lower than the height of the first contact protrusion; the positions of the first contact protrusion, the second contact protrusion and the third contact protrusion form a triangular position relationship. Correspondingly, the height of the third contact position 307 is higher than the height of the second contact position 306 and lower than the height of the first contact position 305; the first contact position 305, the second contact position 306 and the third contact position 307 form a triangular position 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, so that the inner carrier 30 is supported by the first guide rod 61 and the second guide rod 62, and further supported by the outer frame 20.

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

[0189] It should be understood that the first guide rod 61 and the second guide rod 62 may 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 realize triangular support in other ways. The component in the first support assembly 60 that conflicts with the first contact position 305 can be a guide rod, a slider, or a ball, the component that conflicts with the second contact position 306 can be a guide rod, a slider, or a ball, and the component that conflicts with the third contact position 307 can be a guide rod, a slider, or a ball.

[0191] It is worth mentioning that it is expected that the resultant force of the magnetic attraction between the inner carrier 30 and the outer frame 20 is biased toward the side where the first contact position 305 and the second contact position 306 are located. More specifically, it is expected that the resultant force of the magnetic attraction between the inner carrier 30 and the outer frame 20 is biased toward 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, so that the inner carrier 30 is not easy 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 second contact position 306 as the rotation axis. For this reason, the present application has made specific designs for the setting position and structure of the focusing magnetic attraction component 9210 and the structure of the first support assembly 60.

[0192] Specifically, in the design of the setting position and structure of the focusing magnetic member 9210, the focusing magnetic member 9210 is eccentrically arranged relative to the first magnet 42, that is, the center of the magnetic member 92 is inconsistent with the center of the first magnet 42. More specifically, the center of the focusing magnetic member 9210 is offset toward 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, the distance between the focusing magnetic member 9210 and the first contact position 305 in the preset arrangement direction is smaller than the distance between the focusing magnetic member 9210 and the third contact position 307 in the preset arrangement direction; the distance between the focusing magnetic member 9210 and the second contact position 306 in the preset arrangement direction is smaller than the distance between the focusing magnetic member 9210 and the third contact position 307 in the preset arrangement direction; or specifically, the distance between the focusing magnetic member 9210 and the first contact position 305 in the preset arrangement direction is smaller than the distance between the focusing magnetic member 9210 and the third contact position 307 in the preset arrangement direction. The distance between the first magnet 42 and the first contact position 305 in the preset arrangement direction; the distance between the focusing magnetic component 9210 and the second contact position 306 in the preset arrangement direction is smaller 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 component 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 between the focusing magnetic member 9210 and the first magnet 42 is biased toward the side where the first contact position 305 and the second contact position 306 are located, thereby causing the resultant magnetic attraction between the inner carrier 30 and the outer frame 20 to be biased toward the side where the first contact position 305 and the second contact position 306 are located. From a direction perpendicular to the triangular support surface, the magnetic attraction between the focusing magnetic member 9210 and the first magnet 42 is within the triangular support surface and biased toward the side where the first contact position 305 and the second contact position 306 are located, so that the inner carrier 30 is not likely to overturn relative to the outer frame 20, that is, it is not likely 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 overall 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, and 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 feature, and the center of the magnetic field between the focusing magnetic suction component 9210 and the first magnet 42 is relatively close to the connecting line between the first contact position 305 and the third contact position 307, and the center of the magnetic field between the focusing magnetic suction component 9210 and the first magnet 42 is relatively close to the connecting line between the second contact position 306 and the third contact position 307; and in the optical focusing process, as the inner carrier 30 moves, the center of the magnetic field between the focusing magnetic suction component 9210 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 inner carrier 30 is prone to overturning.

[0195] Furthermore, in a modified embodiment in which the center of the focusing magnetic component 9210 is arranged to be biased toward 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 portion of the frame circuit board 25 biased toward the third contact position 307 to structurally reinforce the portion of the frame circuit board 25 that is not covered by the focusing magnetic component 9210 and is exposed.

[0196] Correspondingly, the driving device 1 for the camera module 100 further includes a first structural reinforcement plate 27, which is disposed on a portion of the frame circuit board 25 that is not covered by the focusing magnetic member 9210, is located on a portion of the frame circuit board 25 close to the third contact position 307 in the preset arrangement direction, and is located on the outside of 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 first structural reinforcement plate 27 mainly functions as structural reinforcement, has a harderness than the frame circuit board 25, and has no magnetic conductivity, so as not to affect the magnetic attraction between the focusing magnetic member 9210 and the first magnet 42, thereby causing the inner carrier 30 to easily overturn.

[0197] Specifically, the frame circuit board 25 is usually a flexible circuit board, and when the center of the focus magnetic member 9210 is set to be biased toward the first contact position 305 and the second contact position 306, the portion of the frame circuit board 25 biased toward the third contact position 307 is in an exposed state, and affected by its flexible structural characteristics, the portion of the frame circuit board 25 biased toward the third contact position 307 in an exposed state is easily deformed. Accordingly, the first structural reinforcement plate 27 is set on the portion of the frame circuit board 25 that is not covered by the focus magnetic member 9210 and is in an exposed state.

[0198] In order to make the magnetic attraction between the focusing magnetic member 9210 and the first magnet 42 further biased toward 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 (such as Fig.19 and Fig.21 As shown in the figure), the center of the first slot 921 is biased toward 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 slot 921 is a through slot, that is, the first empty slot 921 passes through the focusing magnetic component 9210 in the thickness direction of the focusing magnetic component 9210, wherein the thickness direction of the focusing magnetic component 9210 is consistent with the first direction D1.

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

[0201] Correspondingly, the driving device 1 for the camera module 100 further includes a second structural reinforcement plate 28, which is disposed at a portion of the frame circuit board 25 corresponding to the first slot 921 and is located outside the frame circuit board 25 in the thickness direction of the frame circuit board 25. The second structural reinforcement plate 28 mainly serves to reinforce the structure, has a harderness than the frame circuit board 25, and has no magnetic conductivity, so as to avoid affecting the magnetic attraction between the focusing magnetic attraction member 9210 and the first magnet 42 and causing the inner carrier 30 to easily overturn.

[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 slot 921 is easily deformed, especially when the first slot 921 is a through slot, the portion of the frame circuit board 25 corresponding to the first slot 921 is exposed, which is not only easily deformed but also easily damaged. Accordingly, the second structural reinforcement plate 28 is provided at the portion of the frame circuit board 25 corresponding to the first slot 921.

[0203] Although the height dimension of the focusing magnetic component 9210 itself is greater than the height dimension of the first magnet 42 itself, that is, in the direction of the optical axis, the size of the focusing magnetic component 9210 itself is greater than the size of the first magnet 42 itself, however, in the process of optical focusing, the first magnet 42 will move relative to the first coil 41 in the direction of the optical axis D, so that at least part of the first magnet 42 is located at a height higher than the height of the focusing magnetic component 9210, or at least part of the first magnet 42 is located at a height lower than the height of the focusing magnetic component 9210, so that the magnetic force between the focusing magnetic component 9210 and the first magnet 42 forms a restoring force, wherein the restoring force formed by the magnetic force between the focusing magnetic component 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, thereby hindering the first magnet 42 from moving along the optical axis D according to the expected movement process. The initial position of the first magnet 42 refers to the position of the first magnet 42 when no magnetic force is generated 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 member 9210 and the first magnet 42 on the movement of the first magnet 42 in the optical axis direction D, the focusing magnetic member 9210 is further provided with a second empty groove 922. The second empty groove 922 can be arranged at a position corresponding to a part of the first magnet 42 with stronger magnetism, and such an arrangement can reduce the driving force requirement for optical focusing.

[0205] In one example of the present application, the magnetism of the central area of ​​the first magnet 42 is the strongest. Accordingly, in this example, the second slot 922 can be set at a position corresponding to the central area of ​​the first magnet 42, such as Fig.21 Accordingly, in this example, in the thickness direction of the focusing magnetic member 9210 , the second slot 922 corresponds to the center area of ​​the first magnet 42 .

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

[0207] It is worth mentioning that since the first magnet 42 is movable in the optical axis direction D during the optical focusing process, the size of the second slot 922 in the optical axis direction D should also take into account the size of the optical focusing stroke to avoid the position where the first magnet 42 has the strongest magnetism during the movement of the first magnet 42 and the part where the first slot 921 and the second slot 922 of the focusing magnetic suction component 9210 are set.

[0208] Correspondingly, the size of the second slot 922 in the optical axis direction D is greater than the optical focus driving stroke. For example, in one example of the present application, the optical focus driving stroke is 0.7 mm, and the size of the second slot 922 in the optical axis direction D is 1.66 mm. The optical focus driving stroke is equal to the movement stroke of the first magnet 42 in the optical axis direction D.

[0209] Further, "the size of the second slot 922 in the optical axis direction D is greater than the optical focus driving stroke" is the size requirement for the second slot 922 when the first magnet 42 does not have a neutral zone. When the first magnet 42 has a neutral zone, the size of the second slot 922 in the optical axis direction D is greater than the sum of the size of the optical focus driving stroke and the size of the neutral zone of the first magnet 42 in the optical axis direction D. The neutral zone of the first magnet 42 refers to the area 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 portion of the frame circuit board 25 corresponding to the second empty slot 922 .

[0211] Correspondingly, the driving device 1 for the camera module 100 further includes a third structural reinforcement plate, which is disposed at a portion of the frame circuit board 25 corresponding to the second slot 922 and is located outside the frame circuit board 25 in the thickness direction of the frame circuit board 25. The third structural reinforcement plate mainly serves to reinforce the structure, has a harderness than the frame circuit board 25, and has no magnetic conductivity, so as to avoid affecting the magnetic attraction between the focusing magnetic attraction member 9210 and the first magnet 42 and causing the inner carrier 30 to easily overturn.

[0212] It should be understood that the first empty slot 921 and the second empty slot 922 may be arranged at the same position, and 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 toward the side of the third contact position 307 relative to the center of the focusing magnetic suction member 9210; the second empty slot 922 may correspond to the central area of ​​the first magnet 42 while its center is biased toward the side of the third contact position 307 relative to the center of the focusing magnetic suction member 9210.

[0213] It should also be understood that the first empty slot 921 and the second empty slot 922 may be interconnected.

[0214] It is worth mentioning that the first position sensing element 951 is arranged on the inner side of the frame circuit board 25; when only part of the orthographic projection of the first position sensing element 951 in the thickness direction of the frame circuit board 25 corresponds to the first empty slot 921 and / or the second empty slot 922, and the orthographic projection of the other part in the thickness direction of the frame circuit board 25 exceeds the first empty slot 921 and / or the second empty slot 922, the position measurement performance of the first position sensing element 951 is unstable and there is a risk of damage. 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. Taking into account the issue 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 groove wall of the first empty groove 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 groove wall of the second empty groove 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 arranged on the inner side of the frame circuit board 25 is opposite to the second structure reinforcement plate 28 and / or the third structure reinforcement plate arranged on the outer side of the frame circuit board 25; in this way, the first position sensing element 951 and the second structure reinforcement plate 28 and / or the third structure 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 force of the magnetic attraction between the inner carrier 30 and the outer frame 20 deviate toward 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 part of the first support component 60 that conflicts with the first contact position 305 and / or the part that conflicts with the second contact position 306 is designed to have magnetic conductivity, and a magnetic attraction magnet 29 is arranged on the inner carrier 30 at a position opposite to the part of the first support component 60 that conflicts with the first contact position 305 and / or the part that conflicts with the second contact position 306. The magnetic force between the magnetic attraction magnet 29 arranged on the inner carrier 30 and the part of the first support component 60 that conflicts with the first contact position 305 and / or the part that conflicts with the second contact position 306 makes the resultant force of the magnetic attraction between the inner carrier 30 and the outer frame 20 deviate toward the side where the first contact position 305 and the second contact position 306 are located.

[0218] Specifically, the design of the first support assembly 60 and the magnetic magnet 29 is exemplified by an embodiment in which the component of the first support assembly 60 that conflicts with the first contact position 305 and the second contact position 306 is implemented as the first guide rod 61 having magnetic conductivity. The first guide rod 61 conflicts with the first contact position 305 and the second contact position 306, and the magnetic magnet 29 is arranged on the inner carrier 30 and opposite to the first guide rod 61. The magnetic force between the magnetic magnet 29 and the first guide rod 61 causes the resultant force of the magnetic attraction between the inner carrier 30 and the outer frame 20 to shift to the side where the first contact position 305 and the second contact position 306 are located. It should be understood that when the magnetic force is generated between the magnetic magnet 29 and the first guide rod 61, the first guide rod 61 is suitable for being fixed to the outer frame 20.

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

[0220] For example, when the component of the first support assembly 60 that conflicts with the first contact position 305 is implemented as a ball and the component of the first support assembly 60 that conflicts with the second contact position 306 is implemented as a ball, the magnetic attraction magnet 29 is at least partially opposite to the ball and / or the magnetic attraction magnet 29 is at least partially opposite to the magnetic attraction member disposed at 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 attraction member disposed at the ball away from the magnetic attraction magnet 29 makes the resultant force of the magnetic attraction between the inner carrier 30 and the outer frame 20 shift to the side where the first contact position 305 and the second contact position 306 are located. It should be understood that when the magnetic force is generated between the magnetic attraction magnet 29 and the ball, the ball is suitable for being fixed to the outer frame 20.

[0221] For another example, when the component of the first support assembly 60 that conflicts with the first contact position 305 is implemented as a slider and the component of the first support assembly 60 that conflicts with the second contact position 306 is implemented as a slider, the magnetic attraction magnet 29 is at least partially opposite to the slider and / or the magnetic attraction magnet 29 is at least partially opposite to the magnetic attraction member disposed 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 attraction member disposed on the slider 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 the magnetic force is generated between the magnetic attraction magnet 29 and the slider, the slider is suitable for being fixed to the outer frame 20.

[0222] The magnetic magnet 29 can be embedded in the inner carrier 30 to reduce the extra space occupied by the magnetic 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 magnet 29 is accommodated in the magnet groove 309. In this example, the magnet groove 309 has an opening and the opening faces downward, which is convenient for taking, placing and fixing the magnetic 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 magnet 29 can be embedded in the inner carrier 30 through an insert injection molding process during the molding process of the inner carrier 30.

[0223] Preferably, if Fig.18 As shown, the center of the magnetic magnet 29 is consistent with 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 magnet 29 and the first contact position 305 in the optical axis direction D is greater than or equal to one-fourth of the distance between the first contact position 305 and the second contact position 306 in the optical axis direction D 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 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 supporting assembly 60 that conflicts with 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 magnet 29 is consistent with or close to the center of the first guide rod 61, for example, the distance between the center of the magnetic magnet 29 and the upper end of the first guide rod 61 is greater than or equal to one-fourth of the dimension of the first guide rod 61 in the optical axis direction D 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 magnet 29 is lower than the upper surface of the first magnet 42, and the lower surface of the magnetic magnet 29 is higher than the lower surface of the first magnet 42, so as to control the height of the magnetic attraction force generated between the magnetic magnet 29 and the first supporting assembly 60, and reduce the adverse deviation of the overall magnetic attraction force in the direction of the optical axis.

[0226] Accordingly, it is worth mentioning that the adjustment of the magnetic magnet 29 along the optical axis direction can adjust the offset of the magnetic attraction force between the focusing magnetic 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 maintained more stably. In one embodiment of the present application, the second support assembly 70 is a rolling support assembly, that is, it is rollably mounted inside the driving device 1 for the camera module 100, and the second support assembly 70 rolls when the outer frame 20 moves. Accordingly, the second support assembly 70 can rollably support 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 guide and support 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 only provided on one side of the outer frame 20 in the optical axis direction D, for example, the second support assembly 70 is only provided on the upper side of the outer frame 20, or, the second support assembly 70 is only provided on the lower side of the outer frame 20. Compared with providing the second support assembly 70 on both the upper and lower sides of the outer frame 20, providing the second support assembly 70 only on the upper side of the outer frame 20, or, providing the second support assembly 70 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 one embodiment of the present application, Figure 2 and Fig.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 frame lower surface 203 of the outer frame 20 and the inner surface of the base bottom wall 111 of the base 11.

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

[0230] In an example of the present application, the number of the 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 transverse guide groove, a second transverse guide groove, a third transverse guide groove, and a fourth transverse guide groove are provided between the outer frame 20 and the base 11. The first ball 711 is provided in the first transverse guide groove; the second ball 712 is provided in the second transverse guide groove; the third ball 713 is provided in the third transverse guide groove; and the fourth ball 714 is provided in the fourth transverse 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 the two sides of the one-way driving component 51 and the two-way driving component 52 for realizing anti-shake drive. The points of action of the forces generated by the one-way driving component 51 and the two-way driving component 52 for realizing anti-shake drive are closer to the balls 71, thereby reducing the overturning moment generated during anti-shake and reducing the possibility of the inner carrier 30 being tilted.

[0233] The first transverse guide groove includes a first one-way transverse groove and a first two-way transverse groove. The length direction of the first one-way transverse groove is consistent with the first direction D1, so that the first one-way 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 two-way transverse groove is consistent with the second direction D2, so that the first two-way transverse groove can guide the first ball 711 and the outer frame 20 to move along the second direction D2. When the one-way 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 one-way transverse groove. When the two-way 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 two-way transverse groove.

[0234] The second transverse guide groove includes a second one-way transverse groove and a second two-way transverse groove. The length direction of the second one-way transverse groove is consistent with the first direction D1, so that the second one-way transverse 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 two-way transverse groove is consistent with the second direction D2, so that the second two-way transverse groove can guide the second ball 712 and the outer frame 20 to move along the second direction D2. When the one-way 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 second one-way transverse groove. When the two-way 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 two-way transverse groove.

[0235] The third transverse guide groove includes a third one-way transverse groove and a third two-way transverse groove. The length direction of the third one-way transverse groove is consistent with the first direction D1, so that the third one-way transverse groove can guide the third ball 713 and the outer frame 20 to move along the first direction D1; the length direction of the third two-way transverse groove is consistent with the second direction D2, so that the third two-way transverse groove can guide the third ball 713 and the outer frame 20 to move along the second direction D2. When the one-way 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 third one-way transverse groove. When the two-way 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 third two-way transverse groove.

[0236] The fourth transverse guide groove includes a fourth one-way transverse groove and a fourth two-way transverse groove. The length direction of the fourth one-way transverse groove is consistent with the first direction D1, so that the fourth one-way transverse groove can guide the fourth ball 714 and the outer frame 20 to move along the first direction D1; the length direction of the fourth two-way transverse groove is consistent with the second direction D2, so that the fourth two-way transverse groove can guide the fourth ball 714 and the outer frame 20 to move along the second direction D2. When the one-way 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 fourth one-way transverse groove. When the two-way 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 fourth two-way transverse groove.

[0237] In the present application, the carriers for setting each of the one-way transverse grooves 2101 and each of the two-way transverse grooves 2102 are different. In one example of the present application, the one-way transverse grooves 2101 are set on the frame lower surface 203 of the outer frame 20, and the two-way transverse grooves 2102 are placed on the inner surface of the base bottom wall 111 of the base 11.

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

[0239] It should be understood that the one-direction transverse groove 2101 and the two-direction transverse groove 2102 may also be provided on the same component, for example, both are provided on the outer frame 20, or both are provided on the base 11. In other words, the first one-direction transverse groove, the second one-direction transverse groove, the third one-direction transverse groove, the fourth one-direction transverse groove, the first two-direction transverse groove, the second two-direction transverse groove, the third two-direction transverse groove, and the fourth two-direction transverse groove may all be provided on the outer frame 20, or all are provided on the base 11.

[0240] Each of the unidirectional transverse grooves 2101 and each of the bidirectional transverse grooves 2102 may also be arranged in other ways, for example, some of the unidirectional transverse grooves 2101 and some of the bidirectional transverse grooves 2102 are arranged on the outer frame 20; some of the unidirectional transverse grooves 2101 and some of the bidirectional transverse grooves 2102 are arranged on the base 11.

[0241] In the above 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 through two carriers respectively. It is worth mentioning that when optical image stabilization in two directions is achieved through 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 variant 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 sub-carrier side wall, a first sub-carrier second side wall, a first sub-carrier third side wall, and a first sub-carrier fourth side wall. The first sub-carrier side wall and the first sub-carrier third side wall are opposite in the first direction D1, and the first sub-carrier second side wall and the first sub-carrier fourth side wall are opposite in the second direction D2. The first sub-carrier has a first sub-carrier through groove, and the first sub-carrier through groove penetrates the first sub-carrier in the optical axis direction D. The second sub-carrier includes a second sub-carrier side wall, a second sub-carrier second side wall, a second sub-carrier third side wall, and a second sub-carrier fourth side wall. The second sub-carrier side wall and the second sub-carrier third side wall are opposite in the first direction D1, and the second sub-carrier second side wall and the second sub-carrier fourth side wall are opposite in the second direction D2. The second sub-carrier has a second sub-carrier through groove, and the second sub-carrier through groove penetrates the second sub-carrier in the optical axis direction D. The lower surface of the second sub-carrier forms the frame lower surface 203. The upper surface of the first sub-carrier forms the frame upper surface 202.

[0243] The side wall 1121 of the base, the side wall of the first sub-carrier, the side wall of the second sub-carrier and the 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; the second side wall 1122 of the base, the second side wall of the first sub-carrier, the second side wall of the second sub-carrier and the second side wall 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; the third side wall 1123 of the base, the third side wall of the first sub-carrier, the third side wall of the second sub-carrier and the third side wall 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; the fourth side wall 1124 of the base, the fourth side wall of the first sub-carrier, the fourth side wall of the second sub-carrier and the fourth side wall 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 along the first direction D1 relative to the base 11, 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 along the first direction D1 relative to the base 11, 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 the third side wall 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 the third side wall of the second sub-carrier or the third side wall of the base. The third magnet 522 of the two-way driving component 52 is arranged on the second side wall of the second sub-carrier; the third coil 521 of the two-way driving component 52 is arranged on the second side wall of the base.

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

[0246] It is worth mentioning that, as mentioned above, the magnetic component 92 used for attracting the second magnet 512 and / or the third magnet 522 to make the outer frame 20 and the base bottom wall 111 close to each other is defined as an anti-shake magnetic component 9220.

[0247] In one example of the present application, the driving device 1 for the camera module 100 includes four anti-shake magnetic elements 9220. Fig.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 component 923 has the opening 9201 on its side adjacent to the second magnet 512; the second anti-shake magnetic component 924 has the opening 9201 on its side adjacent to the second magnet 512 and on its 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 can be electrically connected to the components of the first driving component 40 that need to be conductive (for example, the first coil 41 and the first position sensing element 951) and the components of the second driving component 50 that need to be conductive (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 part can be embedded in the outer frame 20 and / or the base 11. Compared with connecting the focusing coil and the anti-shake coil through a flexible circuit board, it can improve the stability of the electrical connection 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 one 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. Accordingly, a portion of the conductive member is disposed on the outer frame 20 to be electrically connected to the first coil and the first position sensing element 951; another portion of the conductive member is disposed on the base 11 to be electrically 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 spring 93. The spring 93 is conductive and 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 a portion of the conductive member disposed on the outer frame 20 and a portion of the conductive member disposed on the base 11 .

[0256] In one example of the present application, the driving device 1 for the camera module 100 includes four spring clips 93. The four spring clips 93 are respectively a first spring clip 931, a second spring clip 932, a third spring clip 933 and a fourth spring clip 934. One end of the first spring clip 931, one end of the second spring clip 932, one end of the third spring clip 933 and one end of the fourth spring clip 934 are respectively arranged at the frame 1 upper corner portion, the frame 2 upper corner portion, the frame 3 upper corner portion and the frame 4 upper corner portion of the outer frame 20; the other end of the first spring clip 931, the other end of the second spring clip 932, the other end of the third spring clip 933 and the other end of the fourth spring clip 934 are respectively arranged at 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. Accordingly, 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, it is not necessary to dispose the spring sheet 93 between the outer frame 20 and the base 11.

[0258] like Figure 2 As shown, the driving device 1 for the camera module 100 also includes a plurality of damping members 94, at least one of the damping members 94 is arranged on the top of the inner carrier 30 for buffering, so as 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 of the damping members 94 is arranged on the side of the outer frame 20 for buffering, so as 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 one 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 portion of the carrier 1, the upper corner portion of the carrier 2, the upper corner portion of the carrier 3, and the upper corner portion of the carrier 4. The fifth damping member 945 and the sixth damping member 946 are disposed on the frame side wall 21, and are respectively located at the position of the frame side wall 21 adjacent to the frame side wall 24 and the position of the frame side wall 21 adjacent to the frame side wall 22. The seventh damping member 947 and the eighth damping member 948 are disposed on the frame side wall 22, and are respectively located at the position of the frame side wall 22 adjacent to the frame side wall 21 and the position of the frame side wall 22 adjacent to the frame side wall 3 23. The ninth damping member 949 and the tenth damping member 9410 are disposed on the frame side wall 23, and are respectively located at the position of the frame side wall 23 adjacent to the frame side wall 22 and the position of the frame side wall 23 adjacent to the frame side wall 4 24. The eleventh damping member 9411 and the twelfth damping member 9412 are arranged on the fourth side wall 24 of the frame, and are respectively located at a position of the fourth side wall 24 of the frame adjacent to the third side wall 23 of the frame and a position of the fourth side wall 24 of the frame adjacent to the first side wall 21 of the frame.

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

[0261] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

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; as well as 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; 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; 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.

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 driving device for the camera module also includes a first supporting assembly and a magnetic magnet, wherein at least one component of the first supporting assembly is in conflict with the first contact position and / or the second contact position, wherein the component of the first supporting assembly that is in conflict with the first contact position and / or the component that is in conflict with the second contact position has magnetic conductivity, and the magnetic magnet is arranged on the inner carrier and is opposite to the component of the first supporting assembly that is in conflict with the first contact position and / or the component that is in conflict with the second contact position.

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

14. The driving device for a camera module according to claim 12, 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.

15. 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.

16. The driving device for a camera module according to claim 15, 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.

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

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