Driving device, assembling method thereof and camera module

Abstract

Disclosed are a driving device, an assembling method thereof and a camera module. The driving device comprises a fixed part with a receiving cavity, an elastic member arranged in the receiving cavity, a movable part movably suspended in the receiving cavity by the elastic member, and a driving part for driving the movable part to move relative to the fixed part. The driving device is arranged in a specific pattern to avoid unexpected movement of the driven object during driving the driven object to move, so as to reduce the tilt tolerance of the driving device and improve the assembling precision of the camera module. The at least one first coil comprises a first sub-coil, a second sub-coil, a third sub-coil and a fourth sub-coil, the extension direction of the first lower track is consistent with the extension direction of the first sub-coil, the extension direction of the second lower track is consistent with the extension direction of the second sub-coil, the extension direction of the third lower track is consistent with the extension direction of the third sub-coil, and the extension direction of the fourth lower track is consistent with the extension direction of the fourth sub-coil.

Description

Technical Field

[0001] This application relates to the field of camera modules, and more particularly to a driving device, an assembly method thereof, and a camera module. Background Technology

[0002] With the popularization of mobile electronic devices, the technology of camera modules used in mobile electronic devices to help users acquire images (such as videos or pictures) has developed and progressed rapidly. In recent years, camera modules have been widely used in many fields such as medical care, security, and industrial production.

[0003] With changing and evolving market demands, consumers are increasingly requiring diverse features in camera modules. For example, they require image stabilization and autofocus to improve image quality. Optical autofocus (AF) refers to the function of linearly moving a lens mount or image sensor along the optical axis to create a sharp image at the image sensor (CMOS, CCD, etc.) located behind the lens. Optical image stabilization (OIS) refers to the function of adaptively moving the lens mount or image sensor in a direction that compensates for lens shake, thereby improving image sharpness. Motors are an indispensable component of high-performance camera modules. During operation, the motor drives the lens to move, enabling optical autofocus and image stabilization during shooting.

[0004] To meet increasingly diverse market demands, the optical components (e.g., image sensors, optical lenses) of camera modules in terminal devices are becoming larger and heavier, placing higher demands on the driving force of motors.

[0005] Specifically, as terminal devices evolve towards miniaturization and thinner designs, current terminal devices (e.g., mobile phones) face significant limitations in the size of camera modules. However, to provide sufficient driving force for optical components, the volume occupied by the motor must increase along with the size and weight of the optical components it drives. With the size of the camera module constrained by the miniaturization of terminal devices, while optical components are trending towards larger size and greater weight, the driving force provided by existing motors is difficult to increase accordingly.

[0006] Furthermore, to achieve better optical autofocus and optical image stabilization, a large driving stroke is required for the optical components. However, without increasing the size of the motor, it is difficult to improve the driving force of existing motors. With limited driving force, the heavier the optical components, the shorter the stroke that the motor can drive the optical components to move, which will affect the focusing and image stabilization capabilities.

[0007] Furthermore, the heavier the optical components, the slower the motor drives them, and the longer it takes for the components to reach their intended positions, which also affects focusing and image stabilization. To meet the required driving speed of the motor for the optical components, the motor structure needs to be modified, leading to a more complex structure, an increased number of parts, and a tendency for the overall thickness of the device to increase. Summary of the Invention

[0008] One advantage of this application is that it provides a driving device, an assembly method thereof, and a camera module. The driving device of the camera module avoids the unexpected movement of the driven object during the driving process by arranging the various parts of its elastic components in a specific pattern, thereby reducing the tilt tolerance of the driving device and improving the assembly accuracy of the camera module.

[0009] Another advantage of this application is that it provides a driving device, its assembly method, and a camera module. In the driving device, the focusing elastic part of the elastic member is arranged in a rotationally symmetrical manner relative to the optical axis set by the optical lens. During the process of driving the object to move along the Z-axis for optical focusing, the focusing elastic part can suppress the object from translating along the X-axis and Y-axis, and can also suppress the object from rotating along the Z-axis. In this way, the flatness of the elastic member is improved, thereby reducing the tilt tolerance of the driving device and improving the assembly accuracy of the camera module.

[0010] Another advantage of this application is that it provides a driving device, its assembly method, and a camera module. In the driving device, the anti-shake elastic portion of the elastic member is arranged in an axisymmetric manner with respect to the X-axis and Y-axis. During the process of driving the object to move along the X-axis and Y-axis in a plane perpendicular to the optical axis, the anti-shake elastic portion can suppress the outer carrier from rotating around the Z-axis. In this way, the flatness of the elastic member is improved, thereby reducing the tilt tolerance of the driving device and improving the assembly accuracy of the camera module.

[0011] Another advantage of this application is that it provides a driving device, its assembly method, and a camera module. The driving device can be assembled sequentially along the optical axis during the assembly process, which not only simplifies the assembly method of the driving device and saves costs, but also reduces the assembly tolerance of the driving device during the assembly process and improves the assembly accuracy of the driving device.

[0012] Other advantages and features of this application will become apparent from the following description and can be realized by means and combinations particularly pointed out in the claims.

[0013] To achieve at least one of the above advantages, according to one aspect of this application, this application provides a driving device comprising:

[0014] A fixed part with a receiving cavity;

[0015] An elastic member disposed within the receiving cavity;

[0016] A movable portion is movably suspended within the receiving cavity by the elastic member, wherein the movable portion is adapted to mount an optical lens therein, the optical lens having an optical axis; and

[0017] A drive unit for driving the movable part to move relative to the fixed part;

[0018] The elastic member includes a first elastic component extending between the fixed part and the movable part. The first elastic component includes a focusing elastic portion and an image stabilization elastic portion. The focusing elastic portion and the image stabilization elastic portion extend in a plane perpendicular to the optical axis. The focusing elastic portion is arranged in a rotationally symmetrical manner with respect to the optical axis, and the image stabilization elastic portion is arranged in an axially symmetrical manner with respect to the optical axis.

[0019] In the driving device according to this application, the movable part includes an outer carrier and an inner carrier movably mounted on the outer carrier, the inner carrier being adapted to mount the optical lens therein.

[0020] In the driving device according to this application, the focusing elastic portion extends between the inner carrier and the outer carrier, and the image stabilization elastic portion extends between the outer carrier and the fixing portion. The driving portion is adapted to drive the inner carrier to move relative to the outer carrier along a direction set by the optical axis for optical focusing, and the driving portion is adapted to drive the outer carrier to move the inner carrier carrying the optical lens in a plane perpendicular to the optical axis for optical image stabilization.

[0021] In the driving device according to this application, the focusing elastic portion extends between the outer carrier and the fixing portion, and the image stabilization elastic portion extends between the inner carrier and the outer carrier. The driving portion is adapted to drive the inner carrier to move relative to the outer carrier in a plane perpendicular to the optical axis for optical image stabilization, and the driving portion is adapted to drive the outer carrier to move the inner carrier carrying the optical lens along a direction set by the optical axis for optical focusing.

[0022] In the driving device according to this application, the first elastic component further includes an elastic connecting portion connecting the focusing elastic portion and the image stabilization elastic portion.

[0023] In the drive device according to this application, the fixing part includes an upper cover and a base that snap together to form the receiving cavity, wherein the anti-shake elastic portion extends between the outer carrier and the base.

[0024] In the driving device according to this application, at least a portion of the focusing elastic portion and the image stabilization elastic portion are interconnected.

[0025] In the driving device according to this application, the focusing elastic portion includes a first focusing elastic unit and a second focusing elastic unit, the first focusing elastic unit and the second focusing elastic unit being rotationally symmetrical with respect to the optical axis, wherein the first focusing elastic unit includes a first focusing elastic inner contour portion fixed to the inner carrier, a first focusing elastic outer contour portion fixed to the outer carrier, and a first focusing elastic deformation portion extending between the first focusing elastic inner contour portion and the first focusing elastic outer contour portion, and the second focusing elastic unit includes a second focusing elastic inner contour portion fixed to the inner carrier, a second focusing elastic outer contour portion fixed to the outer carrier, and a second focusing elastic deformation portion extending between the second focusing elastic inner contour portion and the second focusing elastic outer contour portion.

[0026] In the drive device according to this application, the first focusing elastic deformation portion and / or the second focusing elastic deformation portion includes a plurality of bent segments extending along the X-axis direction set by the X-axis or the Y-axis direction set by the Y-axis.

[0027] In the driving device according to this application, the image stabilization elastic section includes a first image stabilization elastic unit and a fourth image stabilization elastic unit symmetrically distributed relative to the X-axis, and a second image stabilization elastic unit and a third image stabilization elastic unit symmetrically distributed relative to the X-axis, wherein the first image stabilization elastic unit and the second image stabilization elastic unit are symmetrically distributed relative to the Y-axis, the third image stabilization elastic unit and the fourth image stabilization elastic unit are symmetrically distributed relative to the Y-axis, the first image stabilization elastic unit is connected to the first focusing elastic unit, and the third image stabilization elastic unit is connected to the second focusing elastic unit.

[0028] In the drive device according to this application, the first anti-shake elastic unit, the second anti-shake elastic unit, the third anti-shake elastic unit and the fourth anti-shake elastic unit are located at the four corners of the drive device.

[0029] In the driving device according to this application, the first anti-shake elastic unit includes a first anti-shake elastic inner contour portion fixed to the outer carrier, a first anti-shake elastic outer contour portion fixed to the base, and a first anti-shake elastic deformation portion integrally connected to the first anti-shake elastic inner contour portion and the first anti-shake elastic outer contour portion; the second anti-shake elastic unit includes a second anti-shake elastic inner contour portion fixed to the outer carrier, a second anti-shake elastic outer contour portion fixed to the base, and a second anti-shake elastic deformation portion integrally connected to the second anti-shake elastic inner contour portion and the second anti-shake elastic outer contour portion. The third anti-shake elastic unit includes a third anti-shake elastic inner contour fixed to the outer carrier, a third anti-shake elastic outer contour fixed to the base, and a third anti-shake elastic deformation portion integrally connected to the third anti-shake elastic inner contour and the third anti-shake elastic outer contour; the fourth anti-shake elastic unit includes a fourth anti-shake elastic inner contour fixed to the outer carrier, a fourth anti-shake elastic outer contour fixed to the base, and a fourth anti-shake elastic deformation portion integrally connected to the fourth anti-shake elastic inner contour and the fourth anti-shake elastic outer contour.

[0030] In the drive device according to this application, the elastic member further includes a second elastic component extending between the inner carrier and the outer carrier, the first elastic component and the second elastic component being disposed opposite to each other on opposite sides of the movable portion.

[0031] In the driving device according to this application, the second elastic component includes a second elastic inner contour portion fixed to the inner carrier, a second elastic outer contour portion fixed to the outer carrier, and a second elastic deformation portion extending between the second elastic inner contour portion and the second elastic outer contour portion.

[0032] In the driving device according to this application, the driving unit includes a magnet disposed on the outer carrier, a focusing coil disposed on the inner carrier and corresponding to the magnet, and an image stabilization coil disposed on the fixing unit and corresponding to the magnet.

[0033] In the driving device according to this application, the magnet and the focusing coil correspond to each other in a first direction, and the magnet and the image stabilization coil correspond to each other in a second direction, wherein the first direction is perpendicular to the second direction.

[0034] In the driving device according to this application, the driving device further includes a guide support mechanism disposed between the fixed part and the movable part.

[0035] According to another aspect of this application, a camera module is also provided, comprising:

[0036] Optical lens;

[0037] Photosensitive components; and

[0038] The driving assembly as described above, wherein the optical lens is mounted within the driving device and held in the optical path of the photosensitive component.

[0039] According to another aspect of this application, this application also provides a method for assembling a drive device, comprising:

[0040] Assemble a semi-finished drive device, wherein the semi-finished drive device includes a base, an image stabilization coil disposed on the base, an outer carrier, an inner carrier mounted on the outer carrier, a magnet disposed on the outer carrier, a focusing coil disposed on the inner carrier, a second elastic component extending between the bottom surface of the inner carrier and the bottom surface of the outer carrier, the inner carrier being adapted to mount an optical lens thereon, the optical lens having an optical axis; and

[0041] A first elastic component is installed on the top surface of the inner carrier, the top surface of the outer carrier, and the top surface of the base. The first elastic component includes a focusing elastic portion extending between the top surface of the outer carrier and the top surface of the inner carrier, and an image-stabilizing elastic portion extending between the top surface of the outer carrier and the top surface of the base. The focusing elastic portion and the image-stabilizing elastic portion extend in a height plane perpendicular to the optical axis. The focusing elastic portion is arranged in a rotationally symmetrical manner with respect to the optical axis, and the image-stabilizing elastic portion is arranged in an axially symmetrical manner with respect to the optical axis.

[0042] The further objectives and advantages of this application will become fully apparent from the following description and accompanying drawings.

[0043] These and other objects, features and advantages of this application are fully apparent from the following detailed description, the accompanying drawings and the claims. Attached Figure Description

[0044] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0045] Figure 1 The illustration shows a schematic diagram of a camera module according to an embodiment of this application.

[0046] Figure 2 The illustration shows a schematic diagram of the driving device for the camera module according to an embodiment of this application.

[0047] Figure 3 An exploded view of the driving device according to an embodiment of this application is shown.

[0048] Figure 4 Another exploded view of the drive device according to an embodiment of the application is shown.

[0049] Figure 5 The figure shows a partial perspective view of the driving device according to an embodiment of the present application.

[0050] Figure 6 Another partial perspective view of the driving device according to an embodiment of this application is shown.

[0051] Figure 7 The figure shows a partial cross-sectional schematic diagram of the drive device according to an embodiment of the present application.

[0052] Figure 8 The illustration shows another partial cross-sectional view of the drive device according to an embodiment of this application.

[0053] Figure 9 The figure shows a plan view of the first elastic component of the driving device according to an embodiment of the present application.

[0054] Figure 10 The illustration shows another partial perspective view of the drive device according to an embodiment of this application.

[0055] Figure 11 The illustration shows a partial perspective view of the driving device according to an embodiment of this application.

[0056] Figure 12 The figure shows a partial disassembly diagram of the drive device according to an embodiment of this application.

[0057] Figure 13 The illustration shows another partial perspective view of the drive device according to an embodiment of this application.

[0058] Figure 14 The illustration shows another partial perspective view of the drive device according to an embodiment of this application.

[0059] Figure 15 The illustration shows a flowchart of the assembly method of the drive device according to an embodiment of this application. Detailed Implementation

[0060] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0061] Exemplary camera module

[0062] Figure 1 This is a schematic diagram of a camera module according to an embodiment of this application, as shown below. Figure 1 As shown, a camera module according to an embodiment of this application is illustrated, comprising: a photosensitive component 10, an optical lens (not shown in the figure), and a driving component, wherein the optical lens is held on the photosensitive path of the photosensitive component 10 so that the photosensitive component 10 can receive light projected from the optical lens for imaging, and the driving component is used to drive the target object (photosensitive chip 12 and / or optical lens) to move in order to achieve optical focusing and / or optical image stabilization.

[0063] In this embodiment, the photosensitive component 10 includes a circuit board 11, a photosensitive chip 12 electrically connected to the circuit board 11, and a filter element 13 held on the photosensitive path of the photosensitive chip 12, wherein the circuit board 11 forms a mounting substrate for the photosensitive component 10. The circuit board 11 can be implemented as a printed circuit board (PCB), a software-defined board, or a reinforced flexible printed circuit board (PFC). Furthermore, in some examples, a reinforcing plate (not shown) can be provided below the circuit board 11, for example, a steel sheet can be provided below the circuit board 11 to strengthen the circuit board 11 and improve the heat dissipation performance of the photosensitive component 10.

[0064] The circuit board 11 includes a circuit board body, a connecting strip, and a connector portion (wherein the connecting strip and the connector portion are not shown in the figure). The connecting strip portion connects the circuit board body and the connector portion to achieve electrical conduction between the circuit board body and the connector portion.

[0065] The photosensitive chip 12 includes a photosensitive area for receiving imaging light to achieve imaging and a non-photosensitive area surrounding the photosensitive area. The photosensitive chip 12 is electrically connected to the circuit board 11 via photosensitive chip 12 pads located in the non-photosensitive area.

[0066] The specific implementation of the photosensitive chip 12 being electrically connected to the circuit board 11 is not limited to this application. For example, the photosensitive chip 12 can be electrically connected to the circuit board body of the circuit board 11 through wire bonding (gold wire bonding), soldering, flip-chip (FC), redistribution layer (RDL), etc. In the embodiments of this application, the surface of the circuit board 11 facing the optical lens is defined as the front surface of the circuit board 11, and the side opposite to the front surface of the circuit board 11 is defined as the bottom surface or back surface of the circuit board 11. The photosensitive chip 12 can be fixed to the front surface of the circuit board 11 or the back surface of the circuit board 11.

[0067] Accordingly, in some embodiments of this application, the photosensitive chip 12 is fixed to the front side of the circuit board body by an adhesive medium. The circuit board body has a groove or through hole (circuit board through hole) located in its central region, and the photosensitive chip 12 is fixedly installed in the groove or through hole of the circuit board body. That is, the photosensitive chip 12 is housed in the groove or through hole of the circuit board body to make reasonable use of the height space occupied by the circuit board 11, reduce the impact of the thickness of the circuit board 11 on the thickness of the photosensitive component 10, and reduce the height of the camera module.

[0068] A filter element 13, held on the light-sensitive path of the photosensitive chip 12, is used to filter the imaging light entering the photosensitive chip 12. In some embodiments of this application, the photosensitive assembly 10 further includes a filter element holder 14 disposed on the circuit board 11. The filter element 13 is mounted on the filter element holder 14 and corresponds to at least a portion of the light-sensitive area of ​​the photosensitive chip 12, so as to be held on the light-sensitive path of the photosensitive chip 12. Specifically, the filter element 13 can be fixed to the filter element holder 14 by means of upside-down mounting, that is, the filter element 13 is mounted on the side of the filter element holder 14 away from the optical lens, or the filter element 13 can be mounted on the side of the filter element holder 14 closer to the optical lens.

[0069] The method of combining the filter element bracket 14 with the circuit board 11 is not limited to this application. In one specific embodiment of this application, the filter element bracket 14 is formed separately to create a structure independent of the circuit board 11. The filter element bracket 14 is attached to the circuit board 11 with an adhesive and can be used to support other components. In another specific embodiment of this application, the filter element bracket 14 and the circuit board 11 are integrally formed at a predetermined position on the circuit board body through a molding process. In yet another specific embodiment of this application, the filter element bracket 14 is mounted on the circuit board 11 via a molding base. Specifically, the molding base is integrally formed at a predetermined position on the circuit board body through a molding process, and the filter element bracket 14 is fixed to the molding base, thereby mounting the filter element bracket 14 to the circuit board body.

[0070] In some embodiments of this application, the photosensitive assembly 10 further includes an electronic component 15 electrically connected to the circuit board 11. The molding base has a receiving cavity to enclose at least a portion of the circuit board 11 and the electronic component 15 within the receiving cavity, thereby reducing the contamination of the photosensitive chip 12 by dust or other contaminants that may be carried on the surface of the circuit board 11 and / or the electronic component 15. In some embodiments of this application, the molding base not only encloses at least a portion of the circuit board 11 and the electronic component 15 within the receiving cavity, but also encloses at least a portion of the non-photosensitive area of ​​the photosensitive chip 12 within the receiving cavity.

[0071] In other examples of this application, the specific implementation of the filter element 13 being held on the light-sensing path of the photosensitive chip 12 is not limited to this application. For example, the filter element 13 may be implemented as a filter film and coated on the surface of a certain optical lens of the optical lens to achieve the effect of filtering light.

[0072] In this embodiment, the photosensitive component 10 further includes an electrical connector (not shown in the figure) electrically connected to the circuit board 11 to realize the electrical connection between the camera module and an external device. Specifically, the electrical connector is connected to the connector portion to electrically connect to the circuit board 11.

[0073] In this embodiment, the optical lens includes a lens barrel and at least one optical lens mounted within the lens barrel. The optical lens has an optical axis, and the optical lenses are arranged along the direction defined by the optical axis. Those skilled in the art will understand that the resolving power of the optical lens is proportional to the number of optical lenses within a certain range; that is, the higher the resolving power, the more optical lenses are used. In specific implementations, the optical lens can be implemented as a one-piece lens or a split lens. When the optical lens is implemented as a one-piece lens, it includes a lens barrel in which all the optical lenses are mounted; while when the optical lens is implemented as a split lens, it is assembled from at least two lens units.

[0074] In some embodiments of this application, the driving component is used to drive the optical lens and / or the photosensitive chip 12 to move, thereby achieving optical focusing and / or optical image stabilization. Correspondingly, in some embodiments of this application, the driving component only has a lens driving device, and the driving component drives the optical lens to move through the lens driving device to achieve optical focusing and / or optical image stabilization. In some embodiments of this application, the driving component only has a chip driving device, and the driving component drives the photosensitive chip 12 to move through the chip driving device to achieve optical focusing and / or optical image stabilization. In some embodiments of this application, the driving component has both a lens driving device and a chip driving device, and the driving component drives the corresponding driven object to move through either the lens driving device or the chip driving device to achieve optical focusing and / or optical image stabilization; or, the lens driving device and the chip driving device respectively drive the optical lens and the photosensitive chip 12 to move to achieve optical focusing and / or optical image stabilization.

[0075] In this embodiment, the implementation of optical focusing and optical image stabilization is further illustrated by establishing a spatial coordinate system. The direction set by the optical axis is defined as the Z-axis direction (i.e., the direction set by the Z-axis), a first preset direction perpendicular to the plane containing the optical axis is defined as the X-axis direction (i.e., the direction set by the X-axis), and a second preset direction perpendicular to the plane containing the optical axis is defined as the Y-axis direction (i.e., the direction set by the Y-axis). In this embodiment, the X-axis and Y-axis directions are perpendicular to each other, and the Z-axis direction is perpendicular to the plane containing the X-axis and Y-axis directions. In other words, the X-axis, Y-axis, and Z-axis constitute a three-dimensional Cartesian coordinate system.

[0076] In this embodiment, the driving component can achieve optical focusing by driving the optical lens and / or the photosensitive component 10 to move along the Z-axis, and achieve optical image stabilization by driving the optical lens and / or the photosensitive component 10 to move along the X-axis and Y-axis. Alternatively, the driving component can achieve optical focusing by driving the optical lens and / or the photosensitive component 10 to rotate around the Z-axis, and achieve optical image stabilization by driving the optical lens and / or the photosensitive component 10 to rotate around the X-axis and Y-axis.

[0077] For ease of explanation and understanding, the following uses the lens drive device as an example to illustrate the structure and method of achieving optical focusing and optical image stabilization. The drive device 20 mentioned below specifically refers to the lens drive device.

[0078] like Figures 2 to 4 As shown in this embodiment, the driving device 20 includes a fixed part 21 having a receiving cavity 201, a movable part 22 suspended within the receiving cavity 201, and a driving part 23 for driving the movable part 22 to move relative to the fixed part 21. The movable part 22 is adapted to mount an optical lens therein. During the process of the driving part 23 driving the movable part 22 to move relative to the fixed part 21, the optical lens mounted on the movable part 22 is driven to move along the Z-axis direction or along a plane perpendicular to the Z-axis, so as to realize the optical focusing and optical image stabilization functions of the camera module.

[0079] In the embodiments of this application, such as Figure 3 and Figure 4 As shown, the fixing part 21 includes an upper cover 212 and a base 211 that interlock to form the receiving cavity 201, which are used to accommodate the movable part 22 and the driving part 23. This not only protects the various components in the driving device 20 from being damaged by impact, but also prevents dust, dirt or stray light from entering the interior of the driving device 20.

[0080] Both the upper cover 212 and the base 211 are provided with openings corresponding to the optical lens, so that light reflected by the object can enter the optical lens through the openings provided in the upper cover 212 and reach the photosensitive component 10.

[0081] like Figures 3 to 5As shown, the base 211 includes a base body 2111 and base supports 2112 disposed on the base body 2111. The base supports 2112 extend integrally upwards along the periphery of the base body 2111, forming a mounting surface with a height difference between the base supports 2112 and the surface of the base body 2111. The number of base supports 2112 is at least two, and preferably, the base supports 2112 are disposed opposite to each other on the base body 2111, symmetrically about the longitudinal central axis of the base body 2111. In a specific example of this application, the base supports 2112 are located at the four corners of the base body 2111, extending integrally upwards along the four corner areas of the base body 2111, and are symmetrically distributed.

[0082] In this application embodiment, the specific formation method of the base support column 2112 is not limited to this application. The base support column 2112 can be integrally formed with the base body 2111 through injection molding, or it can be further formed on the already formed base body 2111 through injection molding.

[0083] In this embodiment, the movable part 22 is disposed within the fixed part 21 and can move within the receiving cavity 201 of the fixed part 21 under the action of the driving part 23. The movable part 22 includes an outer carrier 222 and an inner carrier 221 movably mounted on the outer carrier 222. The inner carrier 221 is adapted to mount the optical lens therein; in other words, the optical lens is adapted to be mounted on the inner carrier 221. In this embodiment, the inner carrier 221 can be driven to move relative to the outer carrier 222 independently, or it can move together with the outer carrier 222 under the drive of the outer carrier 222. Further, by driving the outer carrier 222 or the inner carrier 221 to move, the optical lens can be moved to achieve optical focusing or optical image stabilization functions.

[0084] Specifically, in some other embodiments of this application, when the outer carrier 222 remains stationary and the inner carrier 221 is driven to move relative to the outer carrier 222, the inner carrier 221 can drive the optical lens to move in a direction set along the optical axis to achieve the optical focusing function of the camera module; when the outer carrier 222 is driven to move relative to the base 211, the outer carrier 222 can drive the inner carrier 221 and the optical lens to move in a plane perpendicular to the optical axis to achieve the optical image stabilization function of the camera module. In other embodiments of this application, when the outer carrier 222 remains stationary and the inner carrier 221 is driven to move relative to the outer carrier 222, the inner carrier 221 can drive the optical lens to move in a plane perpendicular to the optical axis to achieve the optical image stabilization function of the camera module; when the outer carrier 222 is driven to move relative to the base 211, the outer carrier 222 can drive the inner carrier 221 and the optical lens to move along the direction set by the optical axis to achieve the optical focusing function of the camera module.

[0085] It is worth mentioning that, in some embodiments of this application, the lens barrel and the inner carrier 221 have an integrated structure. That is, the inner carrier 221 not only functions as the lens barrel, accommodating multiple optical lenses, but also acts as a carrier to move the optical lens. Furthermore, the integrated lens barrel and inner carrier 221 structure can reduce the overall lateral dimension of the driving device 20, thereby reducing the lateral dimension of the camera module.

[0086] like Figures 2 to 7 As shown in the embodiment of this application, the driving device 20 further includes an elastic member 24 disposed in the receiving cavity 201 of the fixed part 21, which is adapted to drive the movable part 22 back to its original position (i.e., the position when it is not driven by the driving part 23, or the position before it is driven by the driving part 23). The movable part 22 is movably suspended in the receiving cavity 201 by the elastic member 24.

[0087] The elastic member 24 includes a first elastic component 241 and a second elastic component 242 extending between the inner carrier 221 and the outer carrier 222. The first elastic component 241 and the second elastic component 242 are disposed opposite to each other on opposite sides of the movable part 22. Figure 5 , Figure 6 and Figure 8 As shown. The first elastic component 241 is located on the light-incident side of the optical lens, and the second elastic component 242 is located on the light-outceasing side of the optical lens, so as to repositionably suspend the optical lens and the movable part 22 within the receiving cavity 201 of the fixed part 21.

[0088] Specifically, the first elastic component 241 has a sheet-like structure and includes a focusing elastic portion 2411 and an image stabilization elastic portion 2412, which extend in a plane perpendicular to the optical axis.

[0089] In some embodiments of this application, optical image stabilization is achieved by driving the inner carrier 221 to move relative to the outer carrier 222, and optical focusing is achieved by driving the outer carrier 222 to move relative to the fixed part 21. Accordingly, the focusing elastic part 2411 is disposed on the outer periphery of the image stabilization elastic part 2412, the image stabilization elastic part 2412 extends between the inner carrier 221 and the outer carrier 222, and the focusing elastic part 2411 extends between the outer carrier 222 and the base 211 of the fixed part 21. The driving part 23 is adapted to drive the inner carrier 221 to move relative to the outer carrier 222 in a plane perpendicular to the optical axis for optical image stabilization, and the driving part 23 is adapted to drive the outer carrier 222 to move the inner carrier 221 carrying the optical lens along the direction set by the optical axis for optical focusing.

[0090] In other embodiments of this application, optical focusing is achieved by driving the inner carrier 221 to move relative to the outer carrier 222, and optical image stabilization is achieved by driving the outer carrier 222 to move relative to the fixing part 21. Accordingly, the image stabilization elastic portion 2412 is disposed on the outer periphery of the focusing elastic portion 2411, the focusing elastic portion 2411 extends between the inner carrier 221 and the outer carrier 222, and the image stabilization elastic portion 2412 extends between the outer carrier 222 and the base 211 of the fixing part 21. The driving part 23 is adapted to drive the inner carrier 221 to move relative to the outer carrier 222 along the direction set by the optical axis for optical focusing, and the driving part 23 is adapted to drive the outer carrier 222 to move the inner carrier 221 carrying the optical lens in a plane perpendicular to the optical axis for optical image stabilization.

[0091] When the drive unit 23 drives the inner carrier 221 to move along the direction set by the optical axis (i.e., the Z-axis direction), the focusing elastic portion 2411 deforms to accumulate elastic force; when the drive unit 23 stops driving, the elastic force of the focusing elastic portion 2411 is released, driving the inner carrier 221 to return to its original position. When the drive unit 23 drives the outer carrier 222 to move along the X-axis and Y-axis directions in a plane perpendicular to the optical axis, the image stabilization elastic portion 2412 deforms to accumulate elastic force; when the drive unit 23 stops driving, the elastic force of the image stabilization elastic portion 2412 is released, driving the outer carrier 222 to return to its original position.

[0092] It is worth mentioning that, in order to avoid collisions between the inner carrier 221 and the outer carrier 222 or the fixing part 21 during the movement of the optical lens, which could lead to deformation or damage of the optical lens and a decrease in image quality, in this embodiment, the inner carrier 221 is provided with first protrusions for anti-collision on its top and bottom surfaces. Preferably, the first protrusions are made of a material with an elastic modulus lower than that of the inner carrier 221, such as silicone. The first protrusions can be integrally molded onto the inner carrier 221 by injection molding or fixed to the inner carrier 221 by adhesive bonding; this is not limited to this application.

[0093] Similarly, a second protrusion for anti-collision can be provided on the top and bottom surfaces of the outer carrier 222. The surface of the second protrusion protrudes beyond the surface of the elastic member 24 to prevent the elastic member 24 from colliding with the base 211 or the top cover 212 of the fixing part 21 during the movement of the outer carrier 222, thereby preventing damage to the elastic member 24.

[0094] The focusing elastic portion 2411 has a focusing elastic inner contour portion, a focusing elastic outer contour portion, and a focusing elastic deformation portion extending between the focusing elastic inner contour portion and the focusing elastic outer contour portion, wherein the focusing elastic inner contour portion is fixed to the inner carrier 221, and the focusing elastic outer contour portion is fixed to the outer carrier 222.

[0095] Accordingly, in a specific example of this application, both the inner carrier 221 and the outer carrier 222 have elastic mechanism mounting positions on their top surfaces. The focusing elastic inner contour is fixed to the elastic mechanism mounting position on the top surface of the inner carrier 221, and the focusing elastic outer contour is fixed to the elastic mechanism mounting position on the top surface of the outer carrier 222. The focusing elastic deformation portion extends outward from the focusing elastic inner contour to the focusing elastic outer contour, so that the inner carrier 221 is suspended and disposed within the outer carrier 222 by the focusing elastic deformation portion. The deformation of the focusing elastic deformation portion reserves a certain amount of movement space for the inner carrier 221 and provides a certain amount of restoring force for the inner carrier 221.

[0096] The focusing elastic deformation portion extends bently from the outer contour of the focusing elastic deformation portion to the inner contour of the focusing elastic deformation portion, so as to reserve sufficient space for the movement of the inner carrier 221. This not only ensures the large movement stroke of the inner carrier 221, but also reduces the driving resistance of the inner carrier 221 and improves the optical focusing sensitivity of the camera module. It can be understood that the longer the length of the focusing elastic deformation portion, the more bends it has, the smaller its deformation after deformation, and the easier it is to return to its original position after being stretched.

[0097] Specifically, in this embodiment, the focusing elastic portion 2411 is arranged in a rotationally symmetrical manner relative to the optical axis. This is because the K-value (elastic coefficient) of the axisymmetrically designed elastic element differs significantly in the X-axis and Y-axis directions, resulting in a larger displacement of the inner carrier 221 in either the X-axis or Y-axis direction. The rotationally symmetrical elastic element can suppress this displacement. Furthermore, since the elastic coefficient (K-value) of the rotationally symmetrical focusing elastic portion 2411 is consistent in the X-axis and Y-axis directions, when the inner carrier 221 moves along the Z-axis, the rotationally symmetrical focusing elastic portion 2411 can, to a certain extent, suppress the rotational movement of the inner carrier 221 around the Z-axis. Even further, the large K-values ​​of the focusing elastic portion 2411 in both the X-axis and Y-axis directions further reduce the amplitude of the rotation of the inner carrier 221 around the Z-axis. It is understandable that the rotationally symmetrical layout allows the focusing elastic portion 2411 to further improve the flatness of the first elastic component 241, thereby reducing the tilt tolerance of the driving device 20 and improving the assembly accuracy of the camera module.

[0098] In this embodiment, the focusing elastic portion 2411 includes at least two focusing elastic units distributed in a rotationally symmetrical pattern with respect to the optical axis. The at least two focusing elastic units are independent of each other, that is, the focusing elastic portion 2411 is a split structure, and the number of focusing elastic units is not limited by this application.

[0099] In a specific example of this application, the focusing elastic portion 2411 includes a first focusing elastic unit 100 and a second focusing elastic unit 200, wherein the first focusing elastic unit 100 and the second focusing elastic unit 200 are rotationally symmetrical with respect to the optical axis, such as... Figure 9 As shown. The first focusing elastic unit 100 includes a first focusing elastic inner contour portion 110 fixed to the inner carrier 221, a first focusing elastic outer contour portion 130 fixed to the outer carrier 222, and a first focusing elastic deformation portion 120 extending between the first focusing elastic inner contour portion 110 and the first focusing elastic outer contour portion 130. The second focusing elastic unit 200 includes a second focusing elastic inner contour portion 210 fixed to the inner carrier 221, a second focusing elastic outer contour portion 230 fixed to the outer carrier 222, and a second focusing elastic deformation portion 220 extending between the second focusing elastic inner contour portion 210 and the second focusing elastic outer contour portion 230.

[0100] In a specific example of this application, the first focusing elastic inner contour portion 110 and the second focusing elastic inner contour portion 210 form a hollow annular structure, such that when the first focusing elastic unit 100 is fixedly sleeved on the inner carrier 221, the central region of the annular structure can correspond to the optical lens. The first focusing elastic outer contour portion 130 and the second focusing elastic outer contour portion 230 are respectively disposed along opposite sides of the driving device 20. The first focusing elastic deformation portion 120 and / or the second focusing elastic deformation portion 220 include a plurality of bent segments extending along the X-axis direction set by the X-axis or the Y-axis direction set by the Y-axis, to provide a certain restoring force for the movement of the inner carrier 221, wherein each bent segment includes at least two straight segments and a curved segment connecting the two straight segments.

[0101] It is worth mentioning that the focusing elastic deformation part may, but is not limited to, be implemented as at least two spring wires connected between the focusing elastic outer contour part and the focusing elastic inner contour part. When the driving part 23 generates a driving force to drive the inner carrier 221 to move, the focusing elastic deformation part is driven to generate a reaction damping force that is balanced with the driving force, so that the inner carrier 221 is stably held at a certain position along the optical axis to realize the optical focusing function of the camera module.

[0102] In this embodiment, the anti-shake elastic portion 2412 has an anti-shake elastic inner contour portion, an anti-shake elastic outer contour portion, and an anti-shake elastic deformation portion extending between the anti-shake elastic inner contour portion and the anti-shake elastic outer contour portion, wherein the anti-shake elastic inner contour portion is fixed to the outer carrier 222, and the anti-shake elastic outer contour portion is fixed to the base 211 of the fixing portion 21.

[0103] Accordingly, in a specific example of this application, the top surface of the base support column 2112 of the base 211 is provided with an elastic mechanism mounting position. The anti-shake elastic inner contour is fixed to the elastic mechanism mounting position on the top surface of the outer carrier 222, and the anti-shake elastic outer contour is fixed to the elastic mechanism mounting position on the top surface of the base support column 2112. The anti-shake elastic deformation part extends outward from the anti-shake elastic inner contour to the anti-shake elastic outer contour, so that the outer carrier 222 is suspended on the base 211 by the anti-shake elastic deformation part. The deformation of the anti-shake elastic deformation part reserves a certain amount of movement space for the outer carrier 222 and provides a certain amount of restoring force for the outer carrier 222.

[0104] The image stabilization elastic deformation portion extends bently from the outer contour of the image stabilization elastic structure to the inner contour of the image stabilization elastic structure, so as to reserve sufficient space for the movement of the outer carrier 222. This not only ensures the large movement stroke of the outer carrier 222, but also reduces the driving resistance of the inner carrier 221 and improves the optical image stabilization sensitivity of the camera module. It is understood that the longer the length of the image stabilization elastic deformation portion, the more bends it has, the smaller its deformation after deformation, and the easier it is to return to its original position after being stretched.

[0105] Specifically, the anti-shake elastic deformation part includes a plurality of interconnected bent segments extending in the X direction and a plurality of interconnected bent segments extending in the Y direction. The plurality of interconnected bent segments extending in the X direction and the plurality of interconnected bent segments extending in the Y direction are interconnected to generate corresponding restoring forces in the X and Y directions after the anti-shake elastic deformation part is stretched in the X and Y directions, so that the outer carrier 222 returns to its original position under the action of the anti-shake elastic unit (i.e., the position of the outer carrier 222 before it is driven to move by the driving part 23).

[0106] In one specific example of this application, one end of a plurality of interconnected bent segments extending along the X direction is connected to the inner contour of the image stabilizing elasticity, and one end of a plurality of interconnected bent segments extending along the Y direction is connected to the outer contour of the image stabilizing elasticity. In another specific example of this application, one end of a plurality of interconnected bent segments extending along the X direction is connected to the outer contour of the image stabilizing elasticity, and one end of a plurality of interconnected bent segments extending along the Y direction is connected to the inner contour of the image stabilizing elasticity. This is not limited to the application itself.

[0107] Specifically, in this embodiment, the image stabilization elastic portion 2412 is arranged in an axisymmetric manner relative to the optical axis. This is because the rotationally symmetrical design of the elastic element results in a smaller K value in the direction of rotation along the Z-axis, which makes it easier for the outer carrier 222 to generate rotational motion around the Z-axis during translational movement along the X and Y axes. The axisymmetric image stabilization elastic portion 2412 effectively improves the above problem. When the outer carrier 222 moves along the X and Y axes, the axisymmetric image stabilization elastic portion 2412 can suppress the outer carrier 222 from generating rotational motion around the Z-axis. It is understood that the axisymmetric arrangement allows the image stabilization elastic portion 2412 to further improve the flatness of the first elastic component 241, thereby reducing the tilt tolerance of the drive device 20 and improving the assembly accuracy of the camera module.

[0108] In this embodiment, the image stabilization elastic portion 2412 includes at least two image stabilization elastic units distributed in an axisymmetric pattern relative to the optical axis. The at least two image stabilization elastic units are independent of each other, that is, the image stabilization elastic portion 2412 is a split structure, and the number of image stabilization elastic units is not limited by this application.

[0109] In a specific example of this application, the number of image stabilization elastic units is four. Correspondingly, the image stabilization elastic portion 2412 includes four image stabilization elastic units, which are distributed in an axially symmetrical pattern relative to the X and Y axes. Specifically, the image stabilization elastic portion 2412 includes a first image stabilization elastic unit 300, a second image stabilization elastic unit 400, a third image stabilization elastic unit 500, and a fourth image stabilization elastic unit 600 arranged sequentially in a clockwise direction, such as... Figure 9As shown. The first image stabilization elastic unit 300 and the fourth image stabilization elastic unit 600 are symmetrically distributed with respect to the X-axis, the second image stabilization elastic unit 400 and the third image stabilization elastic unit 500 are symmetrically distributed with respect to the X-axis, the first image stabilization elastic unit 300 and the second image stabilization elastic unit 400 are symmetrically distributed with respect to the Y-axis, and the third image stabilization elastic unit 500 and the fourth image stabilization elastic unit 600 are symmetrically distributed with respect to the Y-axis.

[0110] The first anti-shake elastic unit 300, the second anti-shake elastic unit 400, the third anti-shake elastic unit 500 and the fourth anti-shake elastic unit 600 are located at the four corners of the drive device 20, so that the outer carrier 222 is subjected to more symmetrical forces under the action of the four anti-shake elastic units, thereby enabling the outer carrier 222 to be stably suspended on the base 211.

[0111] More specifically, the first stabilization elastic unit 300 includes a first stabilization elastic inner contour portion 310 fixed to the outer carrier 222, a first stabilization elastic outer contour portion 330 fixed to the base 211, and a first stabilization elastic deformation portion 320 integrally connecting the first stabilization elastic inner contour portion 310 and the first stabilization elastic outer contour portion 330; the second stabilization elastic unit 400 includes a second stabilization elastic inner contour portion 410 fixed to the outer carrier 222, a second stabilization elastic outer contour portion 430 fixed to the base 211, and a second stabilization elastic deformation portion 42 integrally connecting the second stabilization elastic inner contour portion 410 and the second stabilization elastic outer contour portion 430. 0; The third anti-shake elastic unit 500 includes a third anti-shake elastic inner contour portion 510 fixed to the outer carrier 222, a third anti-shake elastic outer contour portion 530 fixed to the base 211, and a third anti-shake elastic deformation portion 520 integrally connecting the third anti-shake elastic inner contour portion 510 and the third anti-shake elastic outer contour portion 530; The fourth anti-shake elastic unit 600 includes a fourth anti-shake elastic inner contour portion 610 fixed to the outer carrier 222, a fourth anti-shake elastic outer contour portion 630 fixed to the base 211, and a fourth anti-shake elastic deformation portion 620 integrally connecting the fourth anti-shake elastic inner contour portion 610 and the fourth anti-shake elastic outer contour portion 630, such as Figure 9 As shown.

[0112] It is worth mentioning that the first focusing elastic outline portion 130 and the second focusing elastic outline portion 230 in the two focusing elastic units are respectively arranged on opposite sides of the driving device 20 along the X-axis direction or the Y-axis direction. This arrangement allows the focusing elastic portion 2411 and the image stabilization elastic portion 2412 to make full use of the spatial position of the lens driving device, and avoids interference between the focusing elastic portion 2411 and the image stabilization elastic portion 2412, thereby affecting the driving effect.

[0113] In summary, the first elastic component 241 includes the focusing elastic portion 2411 and the image stabilization elastic portion 2412. The focusing elastic portion 2411 is arranged in a rotationally symmetrical manner about the Z-axis, and the image stabilization elastic portion 2412 is arranged in an axially symmetrical manner with respect to the X and Y axes. This method prevents unintended movement of the driven object during the movement of the driven object. Specifically, on the one hand, when the driving unit 23 drives the inner carrier 221 to move along the Z-axis for optical focusing, the focusing elastic portion 2411 can suppress translational movement of the inner carrier 221 along the X and Y axes, and also suppress rotational movement of the inner carrier 221 along the Z-axis. On the other hand, when the driving unit 23 drives the outer carrier 222 to move along the X and Y axes for optical image stabilization, the image stabilization elastic portion 2412 can suppress rotational movement of the outer carrier 222 about the Z-axis.

[0114] It is worth mentioning that, in some embodiments of this application, the focusing elastic portion 2411 and the image stabilization elastic portion 2412 are completely separate to avoid interference between them, which would affect the driving effect. In other embodiments of this application, at least a portion of the focusing elastic portion 2411 and the image stabilization elastic portion 2412 are interconnected. This simplifies the installation of the driving device 20 and improves the flatness of the first elastic component 241, thereby reducing the tilt tolerance of the driving device 20 and improving the assembly accuracy of the camera module.

[0115] Accordingly, in some embodiments of this application, the first elastic component 241 further includes an elastic connecting portion 2413 connecting the focusing elastic portion 2411 and the image stabilization elastic portion 2412. One end of the elastic connecting portion 2413 is connected to the focusing elastic portion 2411, and the other end of the elastic connecting portion 2413 is connected to the image stabilization elastic portion 2412, such as... Figure 9As shown. The elastic connecting portion 2413 includes multiple bent segments along the X-axis or Y-axis direction. The extension direction of the multiple bent segments of the elastic connecting portion 2413 is perpendicular to the extension direction of the bent segments of the adjacent focusing elastic deformation portion. In a specific example of this application, the multiple bent segments of the elastic connecting portion 2413 extend along the X-axis direction, and the bent segments of the adjacent focusing elastic deformation portion extend along the Y-axis direction. This arrangement provides more extension space for the bent segments of the elastic connecting portion 2413 and the focusing elastic deformation portion, allowing for more bent segments in both. This arrangement also avoids interference between the elastic connecting portion 2413 and the focusing elastic deformation portion.

[0116] In some embodiments of this application, the two focusing elastic units of the focusing elastic portion 2411 are interconnected with at least two image stabilization elastic units of the image stabilization elastic portion 2412, and the elastic connection portion 2413 includes a first elastic connection unit 700 and a second elastic connection unit 800, wherein the first elastic connection unit 700 and the second elastic connection unit 800 are arranged symmetrically with respect to the Z-axis.

[0117] In a specific example of this application, the first image stabilization elastic unit 300 is connected to the first focusing elastic unit 100, the third image stabilization elastic unit 500 is connected to the second focusing elastic unit 200, the first elastic connection unit 700 is disposed between the first image stabilization elastic unit 300 and the first focusing elastic unit 100, and the second elastic connection unit 800 is disposed between the third image stabilization elastic unit 500 and the second focusing elastic unit 200.

[0118] In this specific example, one end of the first elastic connection unit 700 is connected to the first image stabilization elastic inner contour 310, and the other end of the first elastic connection unit 700 is connected to the first focusing elastic inner contour 110; one end of the second elastic connection unit 800 is connected to the second image stabilization elastic inner contour 410, and the other end of the second elastic connection unit 800 is connected to the second focusing elastic inner contour 210. Through the first elastic connection unit 700 and the second elastic connection unit 800, two image stabilization elastic units and two focusing elastic units arranged at opposite angles are interconnected. This arrangement not only simplifies the installation of the first elastic component 241 but also provides the first elastic component 241 with circuit conduction functionality, making the circuit conduction of the drive device 20 simpler.

[0119] In another specific example of this application, the elastic connection portion 2413 further includes a third elastic connection unit and a fourth elastic connection unit, which are arranged symmetrically with respect to the Z-axis. The third elastic connection unit is connected between the first focusing elastic unit 100 and the second image stabilization elastic unit 400, and the fourth elastic connection unit is connected between the second focusing elastic unit 200 and the fourth image stabilization elastic unit 600.

[0120] In a specific example of this application, one end of the third elastic connecting unit is connected to the second image stabilization elastic inner contour 410, and the other end of the third elastic connecting unit is connected to the first focusing elastic inner contour 110; one end of the fourth elastic connecting unit is connected to the fourth image stabilization elastic inner contour 610, and the other end of the fourth elastic connecting unit is connected to the second focusing elastic inner contour 210. This arrangement divides the first elastic component 241 into two parts, ensuring good consistency of the first elastic component 241 and allowing the entire plane of the first elastic component 241 to be installed in the lens drive device with a small tilt tolerance.

[0121] It is worth mentioning that, in this embodiment, the focusing elastic inner contour portion is fixedly mounted to the top surface of the inner carrier 221 by adhesive bonding or thermal riveting, and the focusing elastic outer contour portion is fixedly mounted to the top surface of the outer carrier 222 by adhesive bonding or thermal riveting; the image stabilizing elastic inner contour portion is fixedly mounted to the top surface of the outer carrier 222 by adhesive bonding or thermal riveting, and the image stabilizing elastic outer contour portion is fixedly mounted to the top surface of the base support 2112 by adhesive bonding or thermal riveting. The top surfaces of the elastic mechanism mounting positions corresponding to the focusing elastic inner contour portion, the focusing elastic outer contour portion, the image stabilizing elastic inner contour portion, and the image stabilizing elastic outer contour portion are on the same plane, so that the first elastic component 241 can be mounted on a flat mounting plane.

[0122] It is also worth mentioning that, in this embodiment of the application, the focusing elastic part 2411 and the image stabilization elastic part 2412 in the first elastic component 241 are both implemented as springs. The image stabilization function of the optical lens is realized by replacing the traditional suspension wire with the image stabilization elastic part 2412 implemented as a spring. The image stabilization elastic part 2412 can generate a force on the object to reset it, so as to ensure that the outer carrier 222 and the base 211 maintain a relatively stable state.

[0123] The anti-shake elastic portion 2412, as part of the first elastic component 241, is disposed on the top of the outer carrier 222 (or the inner carrier 221) and the base 211, extending between the outer carrier 222 and the base 211 and connecting the outer carrier 222 and the base 211. This arrangement allows the drive device 20 to be assembled sequentially along the optical axis during assembly, which not only simplifies the assembly of the drive device 20 and saves costs, but also reduces the assembly tolerance of the drive device 20 during assembly, resulting in higher precision of the drive device 20.

[0124] In this embodiment, the second elastic component 242 has a sheet-like structure. The second elastic component 242 includes a second elastic inner contour portion 2421 fixed to the inner carrier 221, a second elastic outer contour portion 2423 fixed to the outer carrier 222, and a second elastic deformation portion 2422 extending between the second elastic inner contour portion 2421 and the second elastic outer contour portion 2423. Figure 6 As shown. The bottom surfaces of the inner carrier 221 and the outer carrier 222 are provided with elastic mechanism placement positions. The second elastic outer contour portion 2423 is fixed to the elastic mechanism placement position on the bottom surface of the outer carrier 222, and the second elastic inner contour portion 2421 is fixed to the elastic mechanism placement position on the bottom surface of the inner carrier 221. This arrangement allows the inner carrier 221 to be clamped between the focusing elastic portion 2411 of the first elastic component 241 and the second elastic component 242, thereby suspending the inner carrier 221 within the outer carrier 222.

[0125] Specifically, the second elastic outer contour portion 2423 and the second elastic inner contour portion 2421 of the second elastic component 242 can be fixed to the outer carrier 222 and the inner carrier 221 by means of, but not limited to, bonding or thermal riveting. The second elastic inner contour portion 2421 forms a hollow annular structure, and the second elastic outer contour portion 2423 is disposed at the four corners of the outer carrier 222 and connected to the second elastic inner contour portion 2421 through the second elastic deformation portion 2422. In a specific example of this application, the second elastic component 242 is arranged in a rotationally symmetrical manner around the optical axis.

[0126] It is worth mentioning that, in this embodiment of the application, the first elastic component 241 and the second elastic component 242 of the elastic member 24 are respectively fixed to the top and bottom surfaces of the inner carrier 221 and the outer carrier 222 to support and limit the movement of the inner carrier 221 and the outer carrier 222. This not only helps to improve the structural stability of the driving device 20, but also enables the inner carrier 221 and the outer carrier 222 to move within a certain stroke range.

[0127] It is also worth mentioning that, in one specific example of this application, the first elastic component 241 has a split structure, while the second elastic component 242 has an integral structure. This ensures that when the second elastic component 242 is installed on the outer carrier 222, it maintains good consistency, resulting in smaller installation tolerances across its entire plane. The first elastic component 241 is then used to achieve circuit conduction. In another specific example of this application, both the first elastic component 241 and the second elastic component 242 are configured as split structures, allowing both to be used for circuit conduction and simplifying the electrical connection method of the driving device 20.

[0128] In this embodiment, the driving unit 23 can drive the inner carrier 221 to move independently, or it can drive the inner carrier 221 and the outer carrier 222 to move together. The driving unit 23 includes a magnet 233, a focusing coil 232, and an image stabilization coil 231, such as... Figure 7 As shown. In a specific example of this application, the magnet 233 is disposed on the outer carrier 222, the focusing coil 232 is disposed on the inner carrier 221 and corresponds to the magnet 233, and the image stabilization coil 231 is disposed on the fixing part 21 and corresponds to the magnet 233.

[0129] Specifically, the magnet 233 and the focusing coil 232 correspond to each other in a first direction. The focusing coil 232 interacts with the magnet 233 to generate electromagnetic force, which drives the inner carrier 221 to move along the direction set by the optical axis to achieve optical focusing. Figure 3 and Figure 10 As shown, the image stabilization coil 231 is disposed on the base 211 of the fixing part 21. The magnet 233 and the image stabilization coil 231 correspond to each other in a second direction, wherein the first direction is perpendicular to the second direction. The image stabilization coil 231 and the magnet 233 interact to generate an electromagnetic force, which is used to drive the outer carrier 222 to move in a plane perpendicular to the optical axis, so as to achieve the optical image stabilization function.

[0130] More specifically, the focusing coil 232 is disposed on the outer side wall of the inner carrier 221. The specific structure and formation of the focusing coil 232 are not limited to this application. In one specific example of this application, the focusing coil 232 is wound in multiple turns and multiple layers around the outer side wall of the inner carrier 221; in another specific example of this application, the focusing coil 232 is pre-processed into a hollow planar coil, and the focusing coil 232 can be flatly attached to the outer side wall of the inner carrier 221.

[0131] It is worth mentioning that, in the embodiments of this application, such as Figure 14 As shown, the outer side wall of the inner carrier 221 is provided with columnar protrusions 2221, which extend outward from the side wall of the inner carrier 221. In a specific example of this application, the number of columnar protrusions 2221 is two, and they are provided on opposite sides of the inner carrier 221. The end of the focusing coil 232 can be wound around the columnar protrusions 2221, that is, one end (the starting end) of the focusing coil 232 is wound around one of the columnar protrusions 2221, the main body of the focusing coil 232 is wound around the outer periphery of the inner carrier 221, and the other end (the ending end) of the focusing coil 232 is wound around the other columnar protrusion 2221. In a specific example of this application, the columnar protrusion 2221 has a T-shaped structure, that is, the thickness of the top (outer end) of the columnar protrusion 2221 is thicker than that of other positions, so as to prevent the focusing coil 232 from falling off during the winding process.

[0132] Specifically, the magnet 233 and the focusing coil 232 are disposed opposite to each other on the inner sidewall of the outer carrier 222. In a specific example of this application, the inner sidewall of the outer carrier 222 has openings facing the optical axis and facing the photosensitive component 10. The side of the magnet 233 near the optical axis and the side near the photosensitive component 10 are not blocked by the outer carrier 222, so that the side of the magnet 233 near the optical axis can directly face the focusing coil 232, and the side of the magnet 233 near the photosensitive component 10 can directly face the image stabilization coil 231.

[0133] The number of magnets 233 is at least three, that is, the number of magnets 233 is greater than or equal to three. At least one of the three magnets 233 can interact with the focusing coil 232 to generate a driving force along the Z-axis direction. At least two of the three magnets 233 can interact with the image stabilization coil 231 to generate a driving force along the X-axis direction and the Y-axis direction.

[0134] In one specific example of this application, the number of magnets 233 is four. The four magnets 233 can be disposed at the four sides of the outer carrier 222, or at the four corners of the outer carrier 222; this is not limited to this application. In this specific example, the side of the magnet 233 facing the focusing coil 232 is the N pole, and the side away from the focusing coil 232 is the S pole.

[0135] Specifically, the anti-shake coil 231 is disposed on the upper surface of the base body 2111, and the anti-shake coil 231 and the magnet 233 are disposed opposite each other along the second direction (e.g., the height direction). The number of anti-shake coils 231 is at least two, and the anti-shake coils 231 and the magnets 233 interact to generate driving forces along the X-axis and Y-axis directions, thereby driving the outer carrier 222 to move along the X-axis and Y-axis directions. In a specific example of this application, the number of anti-shake coils 231 is four, and the four anti-shake coils 231 are disposed opposite each other to the four magnets 233. The four anti-shake coils 231 can be disposed at the four sides of the base body 2111, or at the four corners of the base body 2111; this is not limited to this application.

[0136] In this embodiment, to improve the stability of the drive device 20 during optical image stabilization and thus improve image quality, the drive device 20 further includes a guide support mechanism 25 disposed between the fixed part 21 and the movable part 22. In one specific example of this application, optical image stabilization is achieved by driving the outer carrier 222 to move. The guide support mechanism 25 is disposed between the outer carrier 222 and the base body 2111 so that the guide support mechanism 25 can always guide and support the outer carrier 222 during the movement of the outer carrier 222 relative to the base 211, allowing the outer carrier 222 to move smoothly. In another specific example of this application, optical image stabilization is achieved by driving the inner carrier 221 to move. The guide support mechanism 25 is disposed between the inner carrier 221 and the base 211. This application does not limit this aspect.

[0137] The guide support mechanism 25 is disposed between the base 211 and the outer carrier 222 (or the inner carrier 221), ensuring constant frictional contact between the base 211 and the guide support mechanism 25, and between the outer carrier 222 (or the inner carrier 221) and the guide support mechanism 25. When the anti-shake coil 231 is energized, the anti-shake coil 231 interacts with the magnet 233, driving the outer carrier 222 (or the inner carrier 221) to move along the X-axis and Y-axis directions. During this process, the anti-shake elastic part 2412 deforms. When the anti-shake coil 231 is de-energized, the anti-shake elastic part 2412 returns to its original shape and drives the outer carrier 222 to reset.

[0138] Specifically, the guide support mechanism 25 is implemented as a mechanism with a track-ball structure. The guide support mechanism 25 includes a track 251 disposed between the movable part 22 and the fixed part 21, and balls 252 disposed within the track 251, such as... Figure 2 and Figure 6 As shown. Since the ball bearing 252 is set inside the track 251, the movement trajectory of the ball bearing 252 is restricted within the track 251. The ball bearing 252 can move within the track 251 according to a preset movement pattern, thereby providing a certain movement space for the movement of the outer carrier 222.

[0139] More specifically, the track 251 includes a lower track and an upper track, wherein the lower track is disposed on the top surface of the base body 2111 of the base 211, and the upper track is disposed on the bottom surface of the outer carrier 222, the positions of the upper track and the lower track corresponding to each other. The ball bearing 252 is accommodated between the upper track and the lower track and is allowed to move along the lower track and the upper track, thus the ball bearing 252 is movably held between the outer carrier 222 and the base 211, and assembled between the outer carrier 222 and the base 211 in such a way that the outer carrier 222 is suspended within the base 211.

[0140] Furthermore, the upper track and the lower track extend perpendicularly to each other, forming a cross shape. The perpendicularity of the extension directions of the upper and lower tracks prevents interference when the outer carrier 222 moves along the X-axis and Y-axis. In one specific example of this application, the upper track extends along the X-axis and the lower track extends along the Y-axis; in another specific example of this application, the upper track extends along the Y-axis and the lower track extends along the X-axis.

[0141] On the same horizontal plane, the upper or lower track has both tracks extending along the X-axis and tracks extending along the Y-axis. That is, the lower track on the top surface of the base body 2111 of the base 211 has both tracks extending along the X-axis and tracks extending along the Y-axis; the upper track on the bottom surface of the outer carrier 222 has both tracks extending along the X-axis and tracks extending along the Y-axis. This arrangement prevents the ball bearings from rotating during optical image stabilization, thus avoiding impact on the driving effect. Furthermore, tracks 251 with different extension directions are located on adjacent sides of the base body 2111 of the base 211, providing a larger mounting space for the image stabilization coil 231. Even further, the guide support mechanism 25 is located on the side of the base 211, and the length direction of the track 251 extends along the direction of the side of the base body 2111.

[0142] The number of tracks 251 is not limited by this application. In one specific example, there are four tracks 251, each containing at least one ball bearing 252. The four tracks 251 are respectively located on the four sides of the base 211 near the four corners of the base body 2111. The extension directions of two adjacent tracks 251 are perpendicular to each other. When one track 251 extends along the X-axis, its adjacent track 251 extends along the Y-axis, and its opposite track extends along the X-axis. Similarly, when one track 251 extends along the Y-axis, its adjacent track extends along the X-axis, and its opposite track extends along the Y-axis. In other words, the four tracks are centrally symmetrical about the Z-axis.

[0143] In this embodiment, the driving device 20 further includes an electrical connection member 26, such as... Figure 2 As shown. The electrical connection member 26 is disposed on the base 211 of the fixing part 21 and electrically connected to the elastic member 24, so as to provide working power to the focusing coil 232 and the image stabilization coil 231 through the electrical connection member 26 and the elastic member 24. Figure 11 and Figure 12 As shown, the electrical connection member 26 includes an upper end 261, a middle part 262, and a lower end 263. The upper end 261, the middle part 262, and the lower end 263 are interconnected to achieve an electrical connection with an external power supply device through the electrical connection member 26, thereby providing power to the drive device 20.

[0144] Specifically, in this embodiment, the middle portion 262 of the electrical connection member 26 is disposed within the base body 2111, and the upper end portion 261 of the electrical connection member 26 extends integrally upward from the base support column 2112 (e.g., Figure 11 and Figure 12 As shown), the lower end 263 of the electrical connection member 26 extends downward from the base body 2111 (as shown). Figure 13 (As shown), to achieve electrical conduction with electronic devices outside the drive device 20. The middle portion 262 of the electrical connection member 26 includes a plurality of electrical connection elements, at least one of the plurality of electrical connection elements of the middle portion 262 of the electrical connection member 26 integrally extends upward to the top of the base support 2112 to form the upper end portion 261 of the electrical connection member 26; at least one of the plurality of electrical connection elements of the middle portion 262 of the electrical connection member 26 integrally extends downward from the base body 2111 to form the lower end portion 263 of the electrical connection member 26.

[0145] Accordingly, in this embodiment, the focusing elastic portion 2411 of the first elastic component 241 further includes a conductive end, wherein the conductive end extends outward from the inner contour of the focusing elastic portion. In a specific example of this application, there are two conductive ends, the positions of which correspond to the columnar protrusions 2221 of the inner carrier 221, and the conductive ends are electrically connected to the focusing coil 232 wound on the columnar protrusions 2221 of the inner carrier 221.

[0146] The number of upper ends 261 of the electrical connection members 26 is at least two, and at least two upper ends 261 of the electrical connection members 26 are electrically connected to the image stabilization elastic outer contour, so that the electrical energy provided by the external power supply device can pass through the lower end 263, middle part 262, upper end 261, image stabilization elastic part 2412, and focusing elastic part 2411 of the electrical connection members 26 in sequence, and reach the focusing coil 232 to drive the inner carrier 221.

[0147] In one specific example of this application, the number of upper ends 261 of the electrical connection members 26 is four, respectively disposed on the four base supports 2112. In one specific example of this application, only the upper ends 261 of the four electrical connection members 26 that simultaneously connect the upper ends 261 of the image stabilization elastic portion 2412 and the focusing elastic portion 2411 achieve circuit conduction. Of course, it is understood that all four upper ends 261 of the electrical connection members 26 can achieve circuit conduction, and this application does not limit this.

[0148] In one specific example of this application, the first elastic component 241 has a split structure, while the second elastic component 242 has an integral structure. The two electrical connection points of the focusing coil 232 are electrically connected to the first elastic component 241 to achieve electrical conduction of the focusing coil 232. In another specific example of this application, the first elastic component 241 and the second elastic component 242 have separate structures. The two electrical connection points of the focusing coil 232 can achieve circuit conduction by being electrically connected to either the first elastic component 241 or the second elastic component 242. In another specific example of this application, the first elastic component 241 has an integral structure, the second elastic component 242 has an integral structure, and the two electrical connection points of the focusing coil 232 cannot be electrically connected to the first elastic component 241 at the same time. Therefore, the two electrical connection points of the focusing coil 232 need to be electrically connected to the first elastic component 241 and the second elastic component 242 respectively to realize the electrical conduction of the focusing coil 232.

[0149] The formation method of the electrical connection member 26 is not limited to this application. In one specific example of this application, the electrical connection member 26 is integrally formed into the base 211 by an insert injection molding process. That is, the middle part 262 of the electrical connection member 26 is integrally formed into the base body 2111, the upper end 261 of the electrical connection member 26 is integrally formed into the base support 2112, and the lower end 263 of the electrical connection member 26 extends downward from the base body 2111 and is exposed outside the base body 2111. In another specific example of this application, the electrical connection member 26 is formed onto the surface of the base 211 by attachment.

[0150] In this embodiment, the driving device 20 further includes a magnetically conductive member 27, such as... Figure 12 As shown. The magnetically conductive component 27 and the magnet 233 are arranged opposite each other along a predetermined direction (e.g., the height direction). The formation method of the magnetically conductive component 27 is not limited to this application. In one specific example of this application, the magnetically conductive component 27 is integrally formed on the base body 2111 of the base 211 by an insert injection molding process; in another specific example of this application, the magnetically conductive component 27 is fixed to the base body 2111 of the base 211 by adhesive, so that the magnetically conductive component 27 can be opposite to the magnet 233.

[0151] The magnetically conductive component 27 and the electrical connection component 26 should avoid mutual interference, which can be achieved in various ways. For example, the magnetically conductive component 27 can be disposed at the upper or lower end of the middle portion 262 of the electrical connection component 26 to avoid interference between them. The magnetically conductive component 27 and the electrical connection component 26 can be made of different materials to avoid mutual interference. For example, the magnetically conductive component 27 can be made of a magnetically conductive material so that it can generate a magnetic attraction with the magnet 233, while the electrical connection component 26 can be made of a non-magnetically conductive material that enables signal conduction. This achieves independence between the magnetically conductive function and the electrical connection function of the drive device 20 and simplifies assembly.

[0152] The magnetically conductive component 27 is disposed at the corner of the base 211, so that one magnetically conductive component 27 can simultaneously correspond to two adjacent magnets 233. Through the magnetic attraction generated between the magnetically conductive component 27 and the magnets 233, the guide support mechanism 25 can always be clamped between the base 211 and the outer carrier 222 (or the inner carrier 221). During optical image stabilization, the guide support mechanism 25 can always maintain frictional contact with the base 211 and the outer carrier 222 (or the inner carrier 221). Furthermore, the magnetically conductive component 27 and the magnets 233 generate a magnetic attraction along the Z-axis to maintain the stability of the movement of the outer carrier 222 (or the inner carrier 221), maintain the centering effect of the outer carrier 222 (or the inner carrier 221), and effectively prevent the outer carrier 222 (or the inner carrier 221) from falling off due to the shaking or inversion of the camera module.

[0153] In this embodiment, the driving device 20 further includes a position sensing element 28, such as... Figure 10 As shown. The position sensing element 28 is disposed opposite to the magnet 233 on the base 211. When the outer carrier 222 moves, the relative position of the position sensing element 28 and the magnet 233 changes. Based on the strength of the magnetic field of the magnet 233 sensed by the position sensing element 28, the position of the outer carrier 222 can be determined, and the current of the anti-shake coil 231 can be adjusted to move the outer carrier 222 to the desired position. In this embodiment, the position sensing element 28 can be a Hall element, a driver integrated circuit (driver IC), or a tunneling magnetoresistive (TMR) element.

[0154] The specific location of the position sensing element 28 is not limited to this application. In one specific example, the position sensing element 28 is disposed within the anti-shake coil 231, and the top surface of the position sensing element 28 is not higher than the top surface of the anti-shake coil 231. This reduces the height of the drive device 20 and protects the position sensing element 28 from collisions during movement. In another specific example, the position sensing element 28 is disposed on the bottom surface of the base 211, such as... Figure 13 As shown.

[0155] The position sensing element 28 is electrically connected to the electrical connection member 26. The specific implementation of the electrical connection between the position sensing element 28 and the electrical connection member 26 is not limited to this application. In a specific example of this application, the base body 2111 of the base 211 has an opening at the location of the position sensing element 28 as a mounting position for the position sensing element 28, allowing the position sensing element 28 to be directly connected to the electrical connection member 26 through this opening. Furthermore, as the height of the mounting position of the position sensing element 28 decreases, the height of the mounting position of the anti-shake coil 231 can also decrease accordingly. This arrangement not only simplifies the circuit conduction method of the driving device 20 but also further reduces the height of the driving device 20. In summary, the camera module described in the embodiments of this application is explained, wherein the driving device 20 of the camera module is provided with an elastic member 24 including a focusing elastic part 2411 and an image stabilization elastic part 2412. The focusing elastic part 2411 and the image stabilization elastic part 2412 are arranged in a specific pattern to avoid the driven object from moving unexpectedly during the process of driving the driven object to move. In this way, the tilt tolerance of the driving device 20 is reduced and the assembly accuracy of the camera module is improved.

[0156] Assembly method of exemplary drive device

[0157] like Figure 15As shown, an assembly method for a driving device according to an embodiment of this application is explained. The assembly method includes: S110, assembling a semi-finished driving device, wherein the semi-finished driving device includes a base 211, an image stabilization coil 231 disposed on the base 211, an outer carrier 222, an inner carrier 221 mounted on the outer carrier 222, a magnet 233 disposed on the outer carrier 222, a focusing coil 232 disposed on the inner carrier 221, and a second elastic component 242 extending between the bottom surface of the inner carrier 221 and the bottom surface of the outer carrier 222, the inner carrier 221 being adapted to mount an optical lens thereon, the optical lens having an optical axis; and S120, assembling the inner carrier 211... A first elastic component 241 is mounted on the top surface of the outer carrier 222, the top surface of the base 211, and the top surface of the inner carrier 221. The first elastic component 241 includes a focusing elastic portion 2411 extending between the top surface of the outer carrier 222 and the top surface of the inner carrier 221, and an image stabilizing elastic portion 2412 extending between the top surface of the outer carrier 222 and the top surface of the base 211. The focusing elastic portion 2411 and the image stabilizing elastic portion 2412 extend in a height plane perpendicular to the optical axis. The focusing elastic portion 2411 is arranged in a rotationally symmetrical manner with respect to the optical axis, and the image stabilizing elastic portion 2412 is arranged in an axially symmetrical manner with respect to the optical axis.

[0158] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The purpose of this application has been fully and effectively achieved. The functions and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.

Claims

1. A driving device, characterized in that, include: A fixed part with a receiving cavity; An elastic member disposed within the receiving cavity; A movable portion is movably suspended within the receiving cavity by the elastic member, wherein the movable portion is adapted to mount an optical lens therein, the optical lens having an optical axis; and A drive unit for driving the movable part to move relative to the fixed part; The elastic member includes a first elastic component extending between the fixed part and the movable part. The first elastic component includes a focusing elastic part and an image stabilization elastic part. The focusing elastic part and the image stabilization elastic part extend in a plane perpendicular to the optical axis. The focusing elastic part is arranged in a rotationally symmetrical manner with respect to the optical axis, and the image stabilization elastic part is arranged in an axially symmetrical manner with respect to the optical axis. The focusing elastic portion includes a focusing elastic inner contour portion and a focusing elastic outer contour portion; the image stabilization elastic portion includes an image stabilization elastic inner contour portion and an image stabilization elastic outer contour portion; the focusing elastic inner contour portion, the focusing elastic outer contour portion, the image stabilization elastic inner contour portion, and the image stabilization elastic outer contour portion are respectively fixed to the elastic mechanism mounting position; and the top surfaces of the elastic mechanism mounting positions corresponding to the focusing elastic inner contour portion, the focusing elastic outer contour portion, the image stabilization elastic inner contour portion, and the image stabilization elastic outer contour portion are on the same plane.

2. The driving device according to claim 1, wherein, The movable part includes an outer carrier and an inner carrier movably mounted on the outer carrier, the inner carrier being adapted to mount the optical lens therein.

3. The driving device according to claim 2, wherein, The focusing elastic portion extends between the inner carrier and the outer carrier, and the image stabilization elastic portion extends between the outer carrier and the fixing portion. The driving portion is adapted to drive the inner carrier to move relative to the outer carrier along the direction set by the optical axis for optical focusing, and the driving portion is adapted to drive the outer carrier to move the inner carrier carrying the optical lens in a plane perpendicular to the optical axis for optical image stabilization.

4. The driving device according to claim 2, wherein, The focusing elastic portion extends between the outer carrier and the fixing portion, and the image stabilization elastic portion extends between the inner carrier and the outer carrier. The driving portion is adapted to drive the inner carrier to move relative to the outer carrier in a plane perpendicular to the optical axis for optical image stabilization, and the driving portion is adapted to drive the outer carrier to move the inner carrier carrying the optical lens along the direction set by the optical axis for optical focusing.

5. The driving device according to claim 3 or 4, wherein, The first elastic component also includes an elastic connecting part that connects the focusing elastic part and the image stabilization elastic part.

6. The driving device according to claim 3, wherein, The fixing part includes an upper cover and a base that snap together to form the receiving cavity, wherein the anti-shake elastic portion extends between the outer carrier and the base.

7. The driving device according to claim 6, wherein, At least a portion of the focusing elastic portion and the image stabilization elastic portion are interconnected.

8. The driving device according to claim 7, wherein, The focusing elastic portion includes a first focusing elastic unit and a second focusing elastic unit, which are rotationally symmetrical with respect to the optical axis. The first focusing elastic unit includes a first focusing elastic inner contour fixed to the inner carrier, a first focusing elastic outer contour fixed to the outer carrier, and a first focusing elastic deformation portion extending between the first focusing elastic inner contour and the first focusing elastic outer contour. The second focusing elastic unit includes a second focusing elastic inner contour fixed to the inner carrier, a second focusing elastic outer contour fixed to the outer carrier, and a second focusing elastic deformation portion extending between the second focusing elastic inner contour and the second focusing elastic outer contour. The first and second focusing elastic inner contours form the focusing elastic inner contour of the focusing elastic portion; the first and second focusing elastic outer contours form the focusing elastic outer contour of the focusing elastic portion.

9. The driving device according to claim 8, wherein, The first focusing elastic deformation portion and / or the second focusing elastic deformation portion include a plurality of bent segments extending along the X-axis direction set by the X-axis or the Y-axis direction set by the Y-axis.

10. The driving device according to claim 9, wherein, The image stabilization elastic unit includes a first image stabilization elastic unit and a fourth image stabilization elastic unit symmetrically distributed relative to the X-axis, and a second image stabilization elastic unit and a third image stabilization elastic unit symmetrically distributed relative to the X-axis. The first image stabilization elastic unit and the second image stabilization elastic unit are symmetrically distributed relative to the Y-axis, and the third image stabilization elastic unit and the fourth image stabilization elastic unit are symmetrically distributed relative to the Y-axis. The first image stabilization elastic unit is connected to the first focusing elastic unit, and the third image stabilization elastic unit is connected to the second focusing elastic unit.

11. The driving device according to claim 10, wherein, The first anti-shake elastic unit, the second anti-shake elastic unit, the third anti-shake elastic unit, and the fourth anti-shake elastic unit are located at the four corners of the drive device.

12. The driving device according to claim 10, wherein, The first anti-shake elastic unit includes a first anti-shake elastic inner contour portion fixed to the outer carrier, a first anti-shake elastic outer contour portion fixed to the base, and a first anti-shake elastic deformation portion integrally connected to the first anti-shake elastic inner contour portion and the first anti-shake elastic outer contour portion; the second anti-shake elastic unit includes a second anti-shake elastic inner contour portion fixed to the outer carrier, a second anti-shake elastic outer contour portion fixed to the base, and a second anti-shake elastic deformation portion integrally connected to the second anti-shake elastic inner contour portion and the second anti-shake elastic outer contour portion; the third anti-shake elastic unit includes a third anti-shake elastic inner contour portion fixed to the outer carrier, a third anti-shake elastic outer contour portion fixed to the base, and a third anti-shake elastic deformation portion integrally connected to the third anti-shake elastic unit. The third anti-shake elastic deformation portion comprises an inner contour portion and a third anti-shake elastic outer contour portion; the fourth anti-shake elastic unit comprises a fourth anti-shake elastic inner contour portion fixed to the outer carrier, a fourth anti-shake elastic outer contour portion fixed to the base, and a fourth anti-shake elastic deformation portion integrally connecting the fourth anti-shake elastic inner contour portion and the fourth anti-shake elastic outer contour portion; the first anti-shake elastic inner contour portion, the second anti-shake elastic inner contour portion, the third anti-shake elastic inner contour portion, and the fourth anti-shake elastic inner contour portion form the anti-shake elastic inner contour portion of the anti-shake elastic portion; the first anti-shake elastic outer contour portion, the second anti-shake elastic outer contour portion, the third anti-shake elastic outer contour portion, and the fourth anti-shake elastic outer contour portion form the anti-shake elastic outer contour portion of the anti-shake elastic portion.

13. The driving device according to claim 2, wherein, The elastic member further includes a second elastic component extending between the inner carrier and the outer carrier, wherein the first elastic component and the second elastic component are disposed opposite to each other on opposite sides of the movable part.

14. The driving device according to claim 13, wherein, The second elastic component includes a second elastic inner profile fixed to the inner carrier, a second elastic outer profile fixed to the outer carrier, and a second elastic deformation portion extending between the second elastic inner profile and the second elastic outer profile.

15. The driving device according to claim 3, wherein, The drive unit includes a magnet disposed on the outer carrier, a focusing coil disposed on the inner carrier and corresponding to the magnet, and an image stabilization coil disposed on the fixing unit and corresponding to the magnet.

16. The driving device according to claim 15, wherein, The magnet and the focusing coil correspond to each other in a first direction, and the magnet and the image stabilization coil correspond to each other in a second direction, wherein the first direction is perpendicular to the second direction.

17. The driving device according to claim 1, wherein, The driving device further includes a guide support mechanism disposed between the fixed part and the movable part.

18. A camera module, characterized in that, include: Optical lens; Photosensitive components; as well as The driving device according to any one of claims 1 to 17, wherein the optical lens is mounted within the driving device and held on the optical path of the photosensitive component.

19. A method for assembling a drive device, characterized in that, include: Assemble a semi-finished drive device, wherein the semi-finished drive device includes a base, an image stabilization coil disposed on the base, an outer carrier, an inner carrier mounted on the outer carrier, a magnet disposed on the outer carrier, a focusing coil disposed on the inner carrier, a second elastic component extending between the bottom surface of the inner carrier and the bottom surface of the outer carrier, the inner carrier being adapted to mount an optical lens thereon, the optical lens having an optical axis; and A first elastic component is installed on the top surface of the inner carrier, the top surface of the outer carrier, and the top surface of the base. The first elastic component includes a focusing elastic portion extending between the top surface of the outer carrier and the top surface of the inner carrier, and an image-stabilizing elastic portion extending between the top surface of the outer carrier and the top surface of the base. The focusing elastic portion and the image-stabilizing elastic portion extend in a height plane perpendicular to the optical axis. The focusing elastic portion is arranged in a rotationally symmetrical manner with respect to the optical axis, and the image-stabilizing elastic portion is arranged in an axially symmetrical manner with respect to the optical axis. The focusing elastic portion includes a focusing elastic inner contour portion and a focusing elastic outer contour portion; the image stabilization elastic portion includes an image stabilization elastic inner contour portion and an image stabilization elastic outer contour portion; the focusing elastic inner contour portion, the focusing elastic outer contour portion, the image stabilization elastic inner contour portion, and the image stabilization elastic outer contour portion are respectively fixed to the elastic mechanism mounting position; and the top surfaces of the elastic mechanism mounting positions corresponding to the focusing elastic inner contour portion, the focusing elastic outer contour portion, the image stabilization elastic inner contour portion, and the image stabilization elastic outer contour portion are on the same plane.

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