Lens driving apparatus, camera module and electronic device

Abstract

The present application relates to the technical field of cameras, and provides a lens driving apparatus, a camera module and an electronic device, for use in solving the problem in the related art of complex circuit design of a camera module of an electronic device. The lens driving apparatus comprises a base, a moving base, a lens mount, a variable aperture, a focusing driving apparatus and an anti-shake driving apparatus; the moving base is arranged on the base; the lens mount is arranged on the moving base and is used for mounting an optical lens; the variable aperture is arranged on the side of the lens mount distant from the base; the focusing driving apparatus is used for driving the lens mount to move relative to the moving base in the axial direction of the variable aperture; the anti-shake driving apparatus is used for driving the moving base to move relative to the base in a direction perpendicular to the axial direction; and the base is provided with a plurality of corners in the circumferential direction, and at least two corners are provided with first pins which are electrically connected to the variable aperture and the focusing driving apparatus by means of connecting lines. The present application can be used in electronic devices such as a mobile phone.

Description

Lens drive device, camera module and electronic equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 29, 2023, with application number 202323665909.2 and application name “Lens drive device, camera module and electronic device”, the entire contents of which are incorporated by reference into this application.

[0002] In the field of technology

[0003] The present application relates to the field of camera technology, and in particular to a lens driving device, a camera module and an electronic device. Background Art

[0004] Currently, electronic devices such as mobile phones and tablets need to maintain stable image quality under varying brightness conditions. To achieve this, some camera modules feature a variable aperture (VA) on the light-entering side of the optical lens. The aperture in the variable aperture can be adjusted in size. In high-brightness environments, the aperture can be reduced to allow relatively less light to enter the optical lens. In low-brightness environments, the aperture can be increased to allow relatively more light to enter the optical lens. This allows the optical lens to adjust the amount of light entering, ensuring image quality.

[0005] In addition, some camera modules are also integrated with a drive motor, which is used to drive the movement of the optical lens to achieve automatic focusing (AF) and optical image stabilization (OIS), thereby ensuring the shooting clarity of the electronic device.

[0006] For camera modules that integrate both a variable aperture and a drive motor, how to simplify the circuit design of the camera module has become one of the important topics in the industry due to the large number of drive components.

[0007] Summary of the Invention

[0008] The embodiments of the present application provide a lens driving device, a camera module, and an electronic device, which are used to solve the problem of complex circuit design of a camera module of an electronic device in the related art.

[0009] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0010] In the first aspect, an embodiment of the present application provides a lens driving device, including a base, a moving base, a lens base, a variable aperture, a focus driving device and an anti-shake driving device, wherein the moving base is arranged on the base; the lens base is arranged on the moving base, and the lens base is used to install an optical lens; the variable aperture is arranged on the side of the lens base away from the base; the focus driving device is used to drive the lens base to move relative to the moving base along the axial direction of the variable aperture; the anti-shake driving device is used to drive the moving base to move relative to the base along a direction perpendicular to the axial direction; wherein the base has multiple corner portions along the circumference, and a first pin is provided at at least two corner portions, the first pin has a first connection end and a second connection end, the first connection end is electrically connected to the variable aperture and the focus driving device through a connecting line, and the second connection end is an external connection end.

[0011] The lens driving device provided in the embodiment of the present application arranges multiple first pins at multiple corners of the base, which facilitates the electrical connection between the first pins and the connecting circuit. There is no need to arrange conductive parts and intermediate connecting circuits between the first pins and the connecting circuit, which simplifies the circuit design of the lens driving device and thus simplifies the circuit design of the entire camera module, which is beneficial to improving the operating reliability of the camera module circuit.

[0012] In some embodiments, the first pin is embedded in the base, and the first connection end is exposed from the surface of the base and connected to the connection circuit, while the second connection end extends outside the base. This arrangement can avoid the first pin from occupying additional space outside the base, and the base can also protect the embedded first pin.

[0013] In some embodiments, the connection circuit includes a connection contact, a first terminal, a second terminal, a first elastic trace, a focus trace, and a second elastic trace, wherein the connection contact is connected to the first connection end; the first terminal is disposed on the motion base, electrically connected to the connection contact via the first elastic trace, and electrically connected to the focus drive device via the focus trace; the second terminal is disposed on the lens base and electrically connected to the variable aperture, and electrically connected to the first terminal via the second elastic trace. With this arrangement, the first elastic trace not only serves as an electrical connection but also provides a reset force for the motion base; the second elastic trace not only serves as an electrical connection but also provides a reset force for the lens base.

[0014] In some embodiments, the connection circuit further includes a transfer terminal and a transfer wire, wherein the transfer terminal is disposed on the motion base, the transfer wire is connected between the first terminal and the transfer terminal, and the second elastic wire is connected between the transfer terminal and the second terminal. This arrangement facilitates the arrangement of the first terminal and the first elastic wire.

[0015] In some embodiments, the transfer wiring is at least partially embedded in the motion base. This configuration can reduce the space outside the motion base occupied by the transfer wiring, and the motion base can also protect the embedded transfer wiring.

[0016] In some embodiments, the focus drive device includes a first control unit and a focus driver electrically connected to the first control unit. The focus driver is configured to drive the lens mount to move relative to the motion base along the axial direction. The focus wiring is electrically connected to the first control unit, and the first control unit is disposed on a sidewall of the motion base. This configuration can reduce the space occupied by the first control unit on the motion base in a direction perpendicular to the axial direction.

[0017] In some embodiments, the focus trace is embedded in the motion base, and the focus trace has a control unit connection end that is exposed from a side wall of the motion base and is electrically connected to the first control unit. This configuration can reduce the space occupied by the focus trace outside the motion base, and the motion base can also protect the embedded focus trace.

[0018] In some embodiments, a second pin is provided on a side of the base, the second pin being electrically connected to the anti-shake drive device, and a first pin is further provided on the side, the first pin being provided at the corners on either side of the second pin. This arrangement allows for a more compact arrangement of the first and second pins, thereby facilitating electrical connection of the first and second pins to the module circuit board.

[0019] In some embodiments, the side edges include a first side edge and a second side edge disposed adjacent to each other; an anti-shake drive device is provided at each of the first and second side edges, the anti-shake drive device at the first side edge being used to drive the moving seat to move relative to the base in a first direction, and the anti-shake drive device at the second side edge being used to drive the moving seat to move relative to the base in a second direction; the first direction, the second direction, and the axial direction are perpendicular to each other; a second pin is provided at each of the first and second side edges, the second pin at the first side edge being electrically connected to the anti-shake drive device, and the second pin at the second side edge being electrically connected to the anti-shake drive device. With this arrangement, the first and second pins can be centrally disposed at the first and second side edges of the base, thereby facilitating electrical connection of the first and second pins to the module circuit board.

[0020] In some embodiments, the anti-shake drive device includes an anti-shake drive and a second position sensor. The anti-shake drive is used to drive the moving base to move relative to the base in a direction perpendicular to the axial direction. The first position sensor is used to detect the position of the moving base relative to the base in the direction perpendicular to the axial direction. The second pin includes multiple sub-pins, a portion of which is electrically connected to the first position sensor, and another portion of which is electrically connected to the anti-shake drive. With this arrangement, the anti-shake drive device can be controlled by a control unit on the module circuit board, eliminating the need for a control component, thereby simplifying the structure of the anti-shake drive device.

[0021] In some embodiments, the side edges include a first side edge and a second side edge disposed adjacent to each other; an anti-shake drive device is disposed on each of the first and second side edges; the anti-shake drive device on the first side edge is configured to drive the movable base to move relative to the base in a first direction, and the anti-shake drive device on the second side edge is configured to drive the movable base to move relative to the base in a second direction; the first direction, the second direction, and the axial direction are perpendicular to each other; a second pin is disposed on either the first side edge or the second side edge, the second pin being electrically connected to the anti-shake drive device located on the first side edge or the second side edge, respectively. This configuration can reduce the number of sub-pins of the second pin, thereby further simplifying the circuit design of the camera module.

[0022] In some embodiments, the anti-shake drive device includes a second control unit and an anti-shake drive electrically connected to the second control unit. The anti-shake drive is configured to drive the moving base to move relative to the base in a direction perpendicular to the axial direction. The second pin includes multiple sub-pins, each of which is electrically connected to the second control unit. With this arrangement, the anti-shake drive is controlled by the second control unit rather than by the control unit on the module circuit board, thereby reducing the computational complexity of the control unit.

[0023] In some embodiments, the second control unit includes a second controller and a second position sensor. The second position sensor and the anti-shake driver are electrically connected to the second controller. The second position sensor is configured to detect the position of the moving base relative to the base in a direction perpendicular to the axial direction. This configuration enables the second control unit to perform closed-loop control of the anti-shake driver, thereby achieving more precise anti-shake control of the anti-shake driver.

[0024] In some embodiments, the variable aperture and focus drive device form a first module, and at least a portion of the first pins are shared by the first module and the second control unit. This arrangement can further reduce the number of pins of the lens drive device, thereby simplifying the circuit design of the camera module.

[0025] In some embodiments, the focus drive device includes a first control unit and a focus drive electrically connected to the first control unit, the focus drive being configured to drive the lens mount to move relative to the motion base along the axis; the anti-shake drive device includes a second control unit and an anti-shake drive electrically connected to the second control unit, the anti-shake drive being configured to drive the motion base to move relative to the base along a direction perpendicular to the axis; the variable aperture device includes a third control unit and an aperture drive electrically connected to the third control unit, the aperture drive being configured to drive the variable aperture to change the amount of light passing through; a portion of the first pins are shared pins and are electrically connected to the first control unit, the second control unit, and the third control unit, while another portion of the first pins are electrically connected to the first control unit and the third control unit. With this arrangement, the variable aperture device, the focus drive device, and the anti-shake drive device can be controlled by their own control modules, without requiring control by a control unit on the module circuit board. This eliminates the need for a control unit on the module circuit board, saving space on the module circuit board and simplifying circuit design on the module circuit board.

[0026] In some embodiments, the first control unit includes a first controller and a first position sensor, the first position sensor and the focus driver are electrically connected to the first controller, respectively, and the first position sensor is used to detect the position of the lens mount relative to the moving seat in the axial direction; the second control unit includes a second controller and a second position sensor, the second position sensor and the anti-shake driver are electrically connected to the second controller, respectively, and the second position sensor is used to detect the position of the moving seat in a direction perpendicular to the axial direction; the variable aperture includes an aperture base, an aperture rotor arranged on the aperture base, and blades arranged on the aperture rotor, the aperture driver is used to drive the aperture rotor to rotate relative to the aperture base, and the blades can move with the aperture rotor to change the amount of light passing through; the third control unit includes a third controller and a third position sensor, the third position sensor and the aperture driver are electrically connected to the third controller, respectively, and the third position sensor is used to detect the position of the aperture rotor relative to the aperture base. With such a configuration, the first control unit can perform closed-loop control of the focus drive, the second control unit can perform closed-loop control of the anti-shake drive, and the third control unit can perform closed-loop control of the aperture drive, thereby making the focus control of the focus drive device, the adjustment control of the aperture value of the variable aperture, and the anti-shake control of the anti-shake drive device more precise.

[0027] In the second aspect, an embodiment of the present application provides a camera module, including an optical lens, a photosensitive element, a module circuit board, and the lens driving device described in the first aspect. The lens driving device and the photosensitive element are both arranged on the module circuit board, and the photosensitive element is located on the image side of the optical lens.

[0028] The beneficial effects of the camera module in the embodiment of the present application are the same as the beneficial effects of the lens driving device in the first aspect, and will not be repeated here.

[0029] In some embodiments, a control unit and external terminals are provided on the module circuit board. The control unit is electrically connected to the external terminals, the iris diaphragm of the lens drive, the focus drive, and the anti-shake drive. This arrangement allows the control unit to function as a computing module, thereby reducing the amount of control computation required for at least one of the iris diaphragm, the focus drive, and the anti-shake drive.

[0030] In some embodiments, a control unit and external terminals are provided on the module circuit board. The control unit is electrically connected to the external terminals, the iris diaphragm, and the focus drive of the lens drive device, respectively. The anti-shake drive device of the lens drive device is electrically connected to the external terminals via a first connection trace on the module circuit board. This arrangement allows the anti-shake drive device to be controlled by its own control module rather than by the control unit on the module circuit board. This reduces the computational complexity of the control unit, thereby facilitating better control of the iris diaphragm and focus drive devices by the control unit.

[0031] In some embodiments, the module circuit board is provided with external terminals, and the variable aperture, focus, and anti-shake drive devices of the lens drive device are electrically connected to the external terminals via second connecting traces on the module circuit board. This arrangement allows the variable aperture, focus, and anti-shake drive devices to be controlled by their own control modules rather than by a control unit on the module circuit board. This eliminates the need for a control unit on the module circuit board, saving space on the module circuit board and simplifying the circuit design on the module circuit board.

[0032] In a third aspect, an embodiment of the present application provides an electronic device, comprising a housing, and the camera module described in the second aspect, wherein the camera module is disposed on the housing.

[0033] The beneficial effects of the electronic device in the embodiment of the present application are the same as the beneficial effects of the lens driving device in the first aspect, and will not be repeated here.

[0034] In a fourth aspect, an embodiment of the present application provides an electronic device, comprising a processor and the camera module described in the second aspect, wherein the external terminal of the camera module is electrically connected to the processor.

[0035] The beneficial effects of the electronic device in the embodiment of the present application are the same as the beneficial effects of the lens driving device in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG1 is a schematic structural diagram of a camera module of an electronic device in the related art;

[0037] FIG2 is an AA cross-sectional view of the camera module in FIG1 ;

[0038] FIG3 is a schematic diagram of the back side of an electronic device in some embodiments of the present application;

[0039] FIG4 is a BB cross-sectional view of the electronic device shown in FIG3 ;

[0040] FIG5 is a schematic structural diagram of a camera module in the first embodiment of the present application;

[0041] FIG6 is a schematic structural diagram of the camera module in FIG5 with the outer shell removed;

[0042] FIG7 is a CC cross-sectional view of the camera module in FIG6 ;

[0043] FIG8 is an exploded view of the camera module in FIG6 at one viewing angle;

[0044] FIG9 is an exploded view of the camera module in FIG6 from another perspective;

[0045] FIG10 is a schematic structural diagram of the variable aperture of the camera module 300 in FIG6 ;

[0046] FIG11 is an exploded view of the variable aperture in FIG10 ;

[0047] FIG12 is a DD cross-sectional view of the variable aperture in FIG10 ;

[0048] FIG13 is a schematic diagram of the structure of the variable aperture in FIG10 with the top plate removed;

[0049] FIG14 is a cross-sectional view of the iris diaphragm 10 taken along line EE;

[0050] FIG15 is a schematic structural diagram of the camera module in FIG6 with the variable aperture, module circuit board, and optical lens removed;

[0051] FIG16 is a schematic diagram of the motion base of the camera module in FIG15 at one viewing angle;

[0052] FIG17 is a schematic diagram of the connection circuits on the sports seat in FIG16;

[0053] FIG18 is a schematic diagram of the motion base of the camera module in FIG15 from another perspective;

[0054] FIG19 is a schematic structural diagram of the lens mount of the camera module in FIG15 ;

[0055] FIG20 is a cross-sectional view taken along line FF of FIG15 ;

[0056] FIG21 is an exploded view of the motion seat and base of the camera module in FIG15 at one viewing angle;

[0057] FIG22 is an exploded view of the motion seat and base of the camera module in FIG15 from another perspective;

[0058] FIG23 is a schematic diagram of the base and the slide in FIG21 being installed together;

[0059] FIG24 is a schematic structural diagram of the bottom portion of the motion base of the camera module in FIG21 ;

[0060] FIG25 is a schematic structural diagram of the base shown in FIG23 with the anti-shake drive coil and the slide removed;

[0061] FIG26 is an exploded view of the base and pins provided on the base in FIG25 ;

[0062] FIG27 is a diagram illustrating a connection architecture between a camera module and a processor of an electronic device in the first embodiment of the present application;

[0063] FIG28 is a schematic diagram of the circuit connection between the camera module and the processor of the electronic device in the first embodiment of the present application;

[0064] FIG29 is a schematic diagram of the structure of the first control unit and the third control unit in FIG28;

[0065] FIG30 is a control flow chart of the camera module in the first embodiment of the present application;

[0066] FIG31 is a diagram illustrating a connection architecture between a camera module and a processor of an electronic device in a second embodiment of the present application;

[0067] FIG32 is a schematic diagram of a circuit connection between a camera module and a processor of an electronic device in a second embodiment of the present application;

[0068] FIG33 is a schematic diagram of the structure of the first control unit, the second control unit, and the third control unit in FIG32;

[0069] FIG34 is a control flow chart of the camera module in the second embodiment of the present application;

[0070] FIG35 is a diagram illustrating a connection architecture between a camera module and a processor of an electronic device in a third embodiment of the present application;

[0071] FIG36 is a schematic diagram of a circuit connection between a camera module and a processor of an electronic device in a third embodiment of the present application;

[0072] Figure 37 is a control flow chart of the camera module in the third embodiment of the present application. DETAILED DESCRIPTION

[0073] The technical solutions in some embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0074] Figure 1 is a schematic diagram of the structure of a camera module for an electronic device in the related art. As shown in Figure 1, the camera module includes a housing 01, a base 02, a kinematic base 03, a lens base 04, an optical lens 05, an iris 06, an anti-shake driver 07, a focus driver 08, and a circuit board 09.

[0075] The base 02 is disposed on a circuit board 09 . A photosensitive element 091 is disposed on the circuit board 09 . The photosensitive element 091 is located in a relief opening 020 on the base 02 , and is located on the image side of the optical lens 05 .

[0076] Housing 01 is mounted on base 02, and the two components define housing cavity 011. Both motion base 03 and lens mount 04 are mounted within housing cavity 011. Motion base 03 is mounted on base 02, while lens mount 04 is mounted on motion base 03. Lens mount 04 defines a lens mounting hole 041, into which optical lens 05 is mounted.

[0077] Focus driver 08 is used to drive lens mount 04 to move along the Z axis of variable aperture 06 relative to motion mount 03. Focus driver 08 includes a focus drive coil 081 disposed on motion mount 03 and a first magnet 082 disposed on lens mount 04. During focusing, when focus drive coil 081 is energized, the magnetic field of first magnet 082 interacts with focus drive coil 081, causing lens mount 04 to move along the Z axis, thereby driving optical lens 05 to move along the Z axis, achieving focus of the camera module.

[0078] Anti-shake driver 07 is used to drive motion base 03 to move relative to base 02 in a direction perpendicular to axis Z. Anti-shake driver 07 includes an anti-shake drive coil 071 disposed on base 02 and a second magnet 072 disposed on motion base 03. During anti-shake operation, when anti-shake drive coil 071 is energized, the magnetic field of second magnet 072 interacts with anti-shake drive coil 071, causing motion base 03 to move perpendicular to axis Z, thereby driving optical lens 05 to move perpendicular to axis Z, achieving anti-shake for the camera module.

[0079] The variable aperture 06 is disposed on the lens mount 04 and is located on the light incident side of the optical lens 05 . The variable aperture 06 is used to adjust the amount of light entering the optical lens 05 .

[0080] Figure 2 is a cross-sectional view taken along line AA of the camera module in Figure 1. As shown in Figure 2, the base 02 has multiple corners 021 along its circumference, each of which is equipped with a conductive member 022. Each conductive member 022 is electrically connected to the variable aperture 06 and the focus driver 08. A side edge of the base 02 is provided with multiple first pins 023 and multiple second pins 024 arranged side by side. Both the first pins 023 and the second pins 024 are electrically connected to the circuit board 09. The multiple first pins 023 are connected to the multiple conductive members 022 in a one-to-one correspondence, and the multiple second pins 024 are electrically connected to the anti-shake driver 07.

[0081] In the camera module in the related art, since the first pin 023 is arranged side by side at one side of the base 02, the first pin 023 is relatively far away from the conductive member 022 at the corner 021. An intermediate connecting wire needs to be arranged between the first pin 023 and the conductive member 022 to achieve electrical connection between the first pin 023 and the conductive member 022. The arrangement of the intermediate connecting wire makes the circuit design of the camera module more complicated, which is not conducive to improving the working reliability of the camera module circuit.

[0082] To this end, an embodiment of the present application provides a lens driving device, a camera module and an electronic device. By arranging multiple first pins at multiple corners of the base, there is no need to set up conductive parts and intermediate connecting lines, thereby simplifying the circuit of the camera module and helping to improve the working reliability of the camera module circuit.

[0083] The electronic devices in the embodiments of the present application may be mobile phones, tablet computers, wearable devices (such as smart watches, smart bracelets, smart glasses, smart jewelry, etc.), vehicle-mounted devices, augmented reality (AR) devices, virtual reality (VR) devices, laptop computers, ultra-mobile personal computers (UMPCs), netbooks, personal digital assistants (PDAs), and other electronic devices with camera modules.

[0084] The following uses a mobile phone as an example to introduce the composition of the camera module of the electronic device in the embodiment of the present application. Other types of electronic devices can be specifically configured with reference to the composition of the camera module in the mobile phone embodiment, which will not be described in detail here.

[0085] Figure 3 is a schematic diagram of the back of an electronic device in some embodiments of the present application, and Figure 4 is a BB cross-sectional view of the electronic device shown in Figure 3. As shown in Figures 3 and 4, the electronic device is a mobile phone and includes a housing 200, a display screen 100, and a camera module 300, which is disposed on the housing 200.

[0086] In some embodiments, as shown in FIG4 , the housing 200 includes a middle frame 210 (also referred to as a front shell or front frame) and a back cover 220 (also referred to as a battery cover). The display screen 100 and the back cover 220 are mounted on opposite sides of the middle frame 210 , and the back cover 220 and the middle frame 210 enclose a first receiving space 230 .

[0087] The camera module 300 is a rear camera module and is arranged in the first accommodating space 230. The light input end of the camera module 300 is arranged opposite to the camera window 240 set on the back cover 220 to ensure that the camera module 300 can receive light emitted by the scene being photographed outside the shell 200.

[0088] The camera window 240 can be directly provided on the back cover 220; as shown in FIG4 , the camera window 240 can also be provided on the camera decorative member 250. Specifically, the camera decorative member 250 is provided on the back cover 220, and has an opening on one side thereof. A protective cover 260 is provided at the opening. The light-transmitting area of ​​the protective cover 260 serves as the camera window 240. As shown in FIG4 , the camera decorative member 250 can be an integral structure with the back cover 220, but the present invention is not limited thereto and the camera decorative member 250 can also be designed as a separate body from the back cover 220.

[0089] The display screen 100 and the middle frame 210 form a second accommodating space 270 , and the second accommodating space 270 is used to accommodate electronic components such as a mainboard. The mainboard is electrically connected to the display screen 100 and the camera module 300 , respectively.

[0090] The middle frame 210 and the back cover 220 may be detachably connected or integrally formed, which is not specifically limited herein. The display screen 100 may be a liquid crystal display screen 100 or an OLED (Organic Light-Emitting Diode) display screen 100, which is not specifically limited herein.

[0091] The camera module 300 in the embodiment of the present application can be installed in the upper left corner, the middle of the upper side, or the upper right corner of the back of the electronic device, without specific limitation. In addition to being installed on the back of the electronic device and used as a rear camera module 300, the camera module 300 can also be installed in the second storage space 270, in which case the camera module 300 serves as the front camera module of the electronic device.

[0092] Figure 5 is a structural schematic diagram of the camera module 300 in the first embodiment of the present application, Figure 6 is a structural schematic diagram of the camera module 300 in Figure 5 after the outer shell is removed, Figure 7 is a CC cross-sectional view of the camera module 300 in Figure 6, Figure 8 is an exploded view of the camera module 300 in Figure 6 from one perspective, and Figure 9 is an exploded view of the camera module 300 in Figure 6 from another perspective.

[0093] As shown in Figures 5 to 9, the camera module 300 includes an optical lens 400, a photosensitive element 500, a module circuit board 600, and a lens driving device 700. The lens driving device 700 and the photosensitive element 500 are both arranged on the module circuit board 600, and the photosensitive element 500 is located on the image side of the optical lens 400.

[0094] As shown in Figures 7 and 8, the optical lens 400 includes a lens barrel 410 and a plurality of lenses 420 arranged in the lens barrel. The optical lens 400 mainly uses the refraction principle of the lens 420 to form an image, that is, the light of the scene passes through the optical lens 400 to form a clear image on the focal plane, and the image of the scene is recorded by the photosensitive element 500 located on the focal plane.

[0095] As shown in FIG7 , the photosensitive surface of the photosensitive element 500 is positioned toward the light-emitting end of the optical lens 400 (e.g., the lower end of the optical lens 400 in FIG7 ) to receive light passing through the optical lens 400. The photosensitive element 500 may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS), without specific limitation herein.

[0096] As shown in Figures 4 and 5, the module circuit board 600 is electrically connected to the mainboard of the electronic device. The module circuit board 600 is a flexible circuit board, but is not limited thereto. The module circuit board 600 can also be a rigid circuit board (i.e., a hard board).

[0097] As shown in FIG. 7 , FIG. 8 and FIG. 9 , the lens driving device 700 includes a base 1 , a moving base 2 , a lens base 3 , an iris diaphragm 4 , a focus driving device 5 and an anti-shake driving device 6 .

[0098] The base 1 is arranged on the module circuit board 600, the moving base 2 is arranged on the base 1, and the lens base 3 is arranged on the moving base 2. The lens base 3 is used to install the optical lens 400. The variable aperture 4 is arranged on the side of the lens base 3 away from the base 1. The focus drive device 5 is used to drive the lens base 3 to move relative to the moving base 2 along the axial direction Z of the variable aperture 4. The anti-shake drive device 6 is used to drive the moving base 2 to move relative to the base 1 along a direction perpendicular to the axial direction Z. Among them, the "vertical" in the direction perpendicular to the axial direction Z can be either absolutely vertical or approximately vertical (with a deviation within 3 degrees).

[0099] In some embodiments, as shown in Figures 5 and 6, the lens driving device 700 also includes a housing 9, which is arranged on the base 1. The housing 9 and the base 1 form a accommodating space, which is used to accommodate the moving seat 2, the lens seat 3, the focus driving device 5 and the anti-shake driving device 6.

[0100] Figure 10 is a schematic diagram of the structure of the variable aperture 4 of the camera module 300 in Figure 6 , Figure 11 is an exploded view of the variable aperture 4 in Figure 10 , Figure 12 is a cross-sectional view taken along line DD of the variable aperture 4 in Figure 10 , and Figure 13 is a schematic diagram of the structure of the variable aperture 4 in Figure 10 with the top plate 48 removed. As shown in Figures 10-13 , the variable aperture 4 includes an aperture base 41 , an aperture driver 42 , an aperture rotor 43 disposed on the aperture base 41 , and blades 44 disposed on the aperture rotor 43 . The aperture driver 42 is used to drive the variable aperture 4 to change the amount of light passing through. Specifically, the aperture driver 42 is used to drive the aperture rotor 43 to rotate relative to the aperture base 41 , and the blades 44 can move with the aperture rotor 43 to change the amount of light passing through.

[0101] As shown in Figures 11 and 12, the aperture base 41 includes a light-transmitting cylinder 411 and a bearing flange 412 arranged at the first end edge of the light-transmitting cylinder 411. The bearing flange 412 extends radially along the light-transmitting cylinder 411. The cylinder hole of the light-transmitting cylinder 411 is the light-transmitting hole of the variable aperture 4.

[0102] The aperture rotor 43 is annular and rotatably mounted on the second end of the light-transmitting cylinder 411. The aperture driver 42 is disposed between the supporting flange 412 and the aperture rotor 43. The aperture driver 42 includes an aperture drive coil 421 disposed on the aperture rotor 43 and a first magnet 422 disposed on the supporting flange 412. The aperture drive coil 421 and the first magnet 422 are disposed opposite each other.

[0103] As shown in Figure 13, the blade 44 is located at the end face of the second end of the light-transmitting tube 411. The blade 44 is connected to the aperture rotor 43 through a connecting structure. The blade 44 has a swinging end 441 and a connecting end 442. The swinging end 441 of the blade 44 is set close to the axis 40 of the light-transmitting tube 411, and the connecting end 442 of the blade 44 is set away from the axis 40 of the light-transmitting tube 411.

[0104] The connection structure includes an arcuate groove 443 arranged at the connection end 442 of the blade 44, and a slide column 431 arranged on the aperture rotor 43. One end of the arcuate groove 443 is arranged close to the axis 40 of the light-transmitting tube 411, and the other end is arranged away from the axis 40 of the light-transmitting tube 411. The slide column 431 slides in cooperation with the arcuate groove 443.

[0105] When the variable aperture 4 adjusts the amount of light passing through the optical lens 400, the aperture drive coil 421 is energized, and the magnetic field of the first magnet 422 interacts with the aperture drive coil 421, causing the aperture rotor 43 to rotate relative to the light tube 411. The aperture rotor 43 drives the slide 431 to slide along the arc groove 443. The blade 44 swings under the action of the slide 431, causing the swing end 441 of the blade 44 to move away from or close to the axis 40 of the light tube 411 to adjust the size of the light hole of the variable aperture 4, thereby changing the amount of light passing through the variable aperture 4.

[0106] As shown in FIG. 13 , there are multiple blades 44 , for example, six blades 44 , and the multiple blades 44 are arranged along the circumference of the aperture rotor 43 .

[0107] Of course, in the aforementioned aperture driver 42, the positions of the aperture drive coil 421 and the first magnet 422 may be reversed, that is, the aperture drive coil 421 is disposed on the supporting flange 412, and the first magnet 422 is disposed on the aperture rotor 43. In the aforementioned connection structure, the positions of the slide post 431 and the arcuate slot 443 may also be reversed, that is, the arcuate slot 443 is disposed on the aperture rotor 43, and the slide post 431 is disposed on the blade 44.

[0108] In some embodiments, as shown in Figures 11 and 13 , the bearing flange 412 is provided with a plurality of limiting bosses 413 (e.g., eight limiting bosses 413 shown in Figure 13 ). These limiting bosses 413 are arranged circumferentially around the light-transmitting cylinder 411 , forming a limiting space between adjacent limiting bosses 413 . A rotor flange 432 is provided on the edge of the aperture rotor 43 , extending into the limiting space. This arrangement allows the limiting bosses 413 to limit the rotational angle range of the aperture rotor 43 , thereby precisely controlling the swing amplitude of the blades 44 to adjust the size of the light-transmitting aperture.

[0109] In some embodiments, as shown in Figures 11, 12, and 14 (Figure 14 is a cross-sectional view taken along line EE of the variable aperture 4 in Figure 10), the variable aperture 4 includes a first aperture circuit board 45 and a second aperture circuit board 46. The first aperture circuit board 45 is annular and disposed on the side of the aperture rotor 43 near the supporting flange 412 (the lower surface of the aperture rotor 43 in Figure 12). The aperture drive coil 421 is disposed on the first aperture circuit board 45. The second aperture circuit board 46 is annular and disposed on the side of the supporting flange 412 away from the aperture rotor 43 (the lower surface of the supporting flange 412 in Figure 12). A first connecting lug 461 and a second connecting lug 462 are provided on the edge of the second aperture circuit board 46. The first connecting lug 461 extends to the edge of the first aperture circuit board 45 and is electrically connected to the first aperture circuit board 45 via an aperture elastic member 47. The second connecting lug 462 serves as an external connection terminal for the variable aperture 4.

[0110] In some embodiments, as shown in FIG14 , the aperture elastic member 47 is disposed in the limited space between two adjacent limiting bosses 413. The aperture elastic member 47 has a circuitous route, and the plane of the circuitous route is parallel to the axial direction Z of the variable aperture 4. That is, the aperture elastic member 47 is placed upright relative to the supporting flange 412. Compared to placing the aperture elastic member 47 flat relative to the supporting flange 412, placing the aperture elastic member 47 upright relative to the supporting flange 412 can reduce the space occupied by the aperture elastic member 47.

[0111] The plane where the circuitous line is located is parallel to the axial direction Z of the variable aperture 4 , and can be absolutely parallel or approximately parallel (for example, with a deviation of 5 degrees), which is not specifically limited here.

[0112] In some embodiments, as shown in Figures 11, 12, and 13, the variable aperture 4 further includes a top plate 48. The top plate 48 is annular, with its edge positioned on a retaining boss 413. Blades 44 are positioned between the top plate 48 and the aperture rotor 43. This arrangement not only limits the position of the blades 44, preventing them from separating from the aperture rotor 43, but also protects them from damage.

[0113] In some embodiments, a top plate groove 481 is provided at the edge of the top plate 48, and a limiting post 4131 is provided on the limiting boss 413. The limiting post 4131 is disposed in the top plate groove 481. In this configuration, the limiting post 4131 can serve as a rotation limit for the top plate 48, thereby preventing the top plate 48 from rotating relative to the aperture base 41.

[0114] In some embodiments, as shown in FIG7 , the variable aperture 4 is disposed on the optical lens 400 . However, the invention is not limited thereto, and the variable aperture 4 may also be disposed on the lens mount 3 .

[0115] In some embodiments, as shown in Figures 7 and 8 , the lens mount 3 is provided with a lens mounting hole 31, and the optical lens 400 is disposed in the lens mounting hole 31, and the optical lens 400 is engaged with the lens mount 3. Specifically, as shown in Figures 7 and 8 , a locking protrusion 32 is provided on the wall of the lens mounting hole 31, and a locking groove 430 is provided on the outer wall of the lens barrel of the optical lens 400. The locking protrusion 32 extends into the locking groove 430 to engage the optical lens 400 with the lens mount 3.

[0116] The positions of the above-mentioned clamping protrusion 32 and the clamping groove 430 can also be adjusted relative to each other, that is, the clamping protrusion 32 is set on the outer wall of the lens barrel 410, and the clamping groove 430 is set on the hole wall of the lens mounting hole 31. In addition to clamping, the optical lens 400 can also be installed with the lens holder 3 through a threaded connection.

[0117] In some embodiments, as shown in Figures 8 and 9, the lens mount 3 includes a fixed tube 33 and an abutment portion 34 protruding from the outer wall of the fixed tube 33. The moving seat 2 is provided with a lens mount mounting hole 21, and the lens mount 3 is arranged in the lens mount mounting hole 21. A lens mount limiting portion 22 is provided on the hole wall of the lens mount mounting hole 21. The lens mount limiting portion 22 abuts against the abutment portion 34 to limit the movement of the lens mount 3 in the axial direction Z of the variable aperture 4.

[0118] The contact portion 34 can be a plate-shaped structure or a block-shaped structure, which is not specifically limited here. The lens holder limiting portion 22 can be a plate-shaped structure or a block-shaped structure, which is not specifically limited here.

[0119] Figure 15 is a schematic diagram of the structure of the camera module 300 in Figure 6 after removing the variable aperture 4, module circuit board 600, and optical lens 400, Figure 16 is a schematic diagram of the moving seat 2 of the camera module 300 in Figure 15 at one viewing angle, Figure 17 is a schematic diagram of the connecting line 8 on the moving seat 2 in Figure 16, Figure 18 is a schematic diagram of the moving seat 2 of the camera module 300 in Figure 15 at another viewing angle, Figure 19 is a schematic diagram of the structure of the lens seat 3 of the camera module 300 in Figure 15, and Figure 20 is an FF cross-sectional view of Figure 15.

[0120] In some embodiments, as shown in Figures 16, 19 and 20, the focus drive device 5 includes a focus drive 51, and the focus drive 51 includes a focus drive coil 511 provided on the moving base 2 and a second magnet 512 provided on the lens base 3.

[0121] During focusing, the focus drive coil 511 is energized, and the magnetic field of the second magnet 512 interacts with the focus drive coil 511, causing the lens mount 3 to move along the axial Z of the variable aperture 4, thereby driving the optical lens 400 to move along the axial Z to achieve focusing of the camera module 300.

[0122] Of course, the positions of the focus drive coil 511 and the second magnet 512 can also be swapped, that is, the focus drive coil 511 is arranged on the lens holder 3 , and the second magnet 512 is arranged on the moving holder 2 .

[0123] In some embodiments, as shown in FIG19 , a magnet fixing portion 35 is further provided on the outer wall of the fixing cylinder 33. The magnet fixing portion 35 is provided with a second magnet placement groove 351. The second magnet 512 is disposed in the second magnet placement groove 351. As shown in FIG16 and FIG20 , a focus drive coil 511 is disposed in the lens mount mounting hole 21 and is disposed opposite the second magnet 512.

[0124] To ensure smoother movement of the lens mount 3, in some embodiments, as shown in Figures 16, 18, and 19, a first sliding shaft 23 is provided within the lens mount mounting hole 21. The first sliding shaft 23 extends along the axial direction Z of the iris diaphragm 4. The lens mount 3 is provided with a recess 36 that slidably engages with the first sliding shaft 23. In this manner, the first sliding shaft 23 can guide the lens mount 3, thereby ensuring smoother movement of the lens mount 3.

[0125] The recess 36 may be an angled space formed by two surfaces, such as a V-shaped groove, etc. The number of the recess 36 may be one or more (as shown in FIG. 18 ), which is not specifically limited herein.

[0126] In some embodiments, as shown in Figures 15, 21, and 22, Figure 21 is an exploded view of the moving base 2 and base 1 of the camera module 300 in Figure 15 from one perspective, and Figure 22 is an exploded view of the moving base 2 and base 1 of the camera module 300 in Figure 15 from another perspective. The base 1 has a moving base stopper 11 at its edge, located outside the moving base 2. The moving base stopper 11 is used to limit the movement of the moving base 2 in a direction perpendicular to the axial direction Z.

[0127] As shown in FIG21 , the moving seat limiting portion 11 includes a limiting platform 111 and limiting ribs 112. The limiting platform 111 is provided at the corner 12 of the base 1, and the limiting ribs 112 are provided at the side 13 of the base 1. The limiting platform 111 and the limiting ribs 112 are arranged along the circumference of the base 1. Of course, the structure of the moving seat limiting portion 11 is not limited to this, and other structures can also be provided according to actual conditions.

[0128] In some embodiments, as shown in Figures 20, 21 and 22, the anti-shake driving device 6 includes an anti-shake driver 61, and the anti-shake driver 61 includes an anti-shake driving coil 611 arranged on the base 1 and a third magnet 612 arranged on the moving base 2.

[0129] During anti-shake, the anti-shake drive coil 611 is energized, and the magnetic field of the third magnet 612 interacts with the anti-shake drive coil 611, causing the moving seat 2 to move in a direction perpendicular to the axial direction Z, thereby driving the lens seat 3 and the optical lens 400 to move in a direction perpendicular to the axial direction Z to achieve anti-shake of the camera module 300.

[0130] Of course, the positions of the anti-shake driving coil 611 and the third magnet 612 can also be swapped, that is, the anti-shake driving coil 611 is arranged on the moving seat 2 , and the third magnet 612 is arranged on the base 1 .

[0131] In some embodiments, as shown in Figures 20, 21, and 22, the side 13 of the base 1 includes a first side 131 and a second side 132 adjacent to each other. Anti-shake drive devices 6 are provided on the first side 131 and the second side 132, respectively. The anti-shake drive device 6 on the first side 131 is used to drive the moving base 2 to move relative to the base 1 in a first direction X, and the anti-shake drive device 6 on the second side 132 is used to drive the moving base 2 to move relative to the base 1 in a second direction Y. The first direction X, the second direction Y, and the axial direction Z are perpendicular to each other. This arrangement enables the camera module 300 to achieve anti-shake in the first direction X and the second direction Y.

[0132] In some embodiments, as shown in Figures 21, 23, and 24, Figure 23 is a schematic diagram of the base 1 and slide 7 in Figure 21 being installed together, and Figure 24 is a schematic diagram of the structure of the bottom of the motion base 2 of the camera module 300 in Figure 21. The base 1 is provided with a second sliding shaft 14 and the slide 7. The second sliding shaft 14 extends along the second direction Y. The slide 7 is provided with a first sliding groove 71. The first sliding groove 71 slidably engages with the second sliding shaft 14, so that the slide 7 is slidably connected to the base 1 along the second direction Y.

[0133] As shown in Figures 21 and 22, a third sliding shaft 72 is also provided on the slide 7, and the third sliding shaft 72 extends along the first direction X. A second sliding groove 25 is provided on the moving seat 2, and the second sliding groove 25 slides with the third sliding shaft 72 to enable the moving seat 2 to be slidably connected to the slide 7 along the first direction X.

[0134] When the camera module 300 needs to be anti-shake in the second direction Y, the anti-shake driving device 6 at the second side 132 drives the slide 7 to move relative to the base 1 along the second direction Y, the slide 7 drives the moving seat 2 to move relative to the base 1 along the second direction Y, and the moving seat 2 drives the lens seat 3 and the optical lens 400 to move relative to the base 1 along the second direction Y, thereby realizing anti-shake of the camera module 300 in the second direction Y.

[0135] When the camera module 300 needs to be anti-shake in the first direction X, the anti-shake driving device 6 at the first side 131 drives the moving seat 2 to move relative to the slide 7 along the first direction X, and the moving seat 2 drives the lens seat 3 and the optical lens 400 to move relative to the slide 7 along the first direction X, thereby achieving anti-shake of the camera module 300 in the first direction X.

[0136] By providing the second sliding shaft 14, the second sliding shaft 14 can guide the slide 7, so that the slide 7 drives the moving base 2 to move more smoothly in the second direction Y. By providing the third sliding shaft 72, the third sliding shaft 72 can guide the moving base 2, so that the moving base 2 can move more smoothly in the first direction X.

[0137] The second slide shaft 14 may be provided in one or more configurations (three are shown in FIG21 ), and this is not specifically limited here. The number of first chutes 71 may be provided in one or more configurations, and the number of first chutes 71 specifically corresponds to the number of second chutes 25. The third slide shaft 72 may be provided in one or more configurations (three are shown in FIG21 ), and this is not specifically limited here. The number of second chutes 25 may be provided in one or more configurations, and the number of second chutes 25 specifically corresponds to the number of second chutes 25.

[0138] In some embodiments, as shown in FIG21 , the slide 7 is L-shaped, with a portion of the slide 7 located at the first side 131 of the base 1 and another portion of the slide 7 located at the second side 132 of the base 1. By configuring the slide 7 in an L-shape, the space occupied by the slide 7 on the base 1 can be reduced. Of course, the slide 7 is not limited to being L-shaped and can also be configured in other shapes according to actual circumstances.

[0139] In some embodiments, as shown in Figures 25 and 26, Figure 25 illustrates the structure of the base 1 shown in Figure 23 with the anti-shake drive coil 611 and slider 7 removed, while Figure 26 illustrates an exploded view of the base 1 and the pins disposed thereon. The base 1 has multiple corner portions 12 along its circumference, each of which is provided with a first pin 15. The first pin 15 has a first connection end 151 and a second connection end 152. The second connection end 152 is an external connection end and is electrically connected to the module circuit board 600. As shown in Figures 6 and 21, the first connection end 151 is electrically connected to the variable aperture 4 and the focus drive device 5 via a connecting line 8.

[0140] As shown in Figures 25 and 26 , the base 1 has a rectangular outline and has four corner portions 12 along the circumference. First pins 15 are provided at three of the corner portions 12. The three corner portions 12 are each provided with a first pin 15 at corner portion 12a, corner portion 12b, and corner portion 12c, and two first pins 15 are provided at corner portion 12b. Of course, the outline of the base 1 is not limited to a rectangle and can also be configured as other polygons, such as a hexagon or a pentagon. In addition to providing first pins 15 at the three corner portions 12 of the base 1, first pins 15 can also be provided at four or two corner portions 12 of the base 1, depending on the actual situation.

[0141] By electrically connecting the first connection end 151 of the first pin 15 to the iris diaphragm 4 and the focus actuator 5, that is, the iris diaphragm 4 and the focus actuator 5 share the first pin 15, the number of pins of the lens actuator 700 can be reduced, thereby simplifying the circuit design of the lens actuator 700. By arranging multiple first pins 15 at multiple corners 12 of the base 1, it is convenient to electrically connect the first pins 15 to the connecting circuit 8. There is no need to arrange conductive members or intermediate connecting circuits 8 between the first pins 15 and the connecting circuit 8, simplifying the circuit design of the lens actuator 700, and thus simplifying the circuit design of the entire camera module 300, thereby facilitating improved operational reliability of the circuit of the camera module 300.

[0142] In some embodiments, as shown in Figures 21, 25, and 26, the first pin 15 is embedded in the base 1, with the first connection end 151 exposed from the surface of the base 1 and connected to the connection line 8, and the second connection end 152 extends outside the base 1. By embedding the first pin 15 in the base 1, not only can the first pin 15 avoid occupying additional space outside the base 1, making the structure of the lens driving device 700 more compact, but the base 1 can also protect the embedded first pin 15, reducing external corrosion damage to the first pin 15.

[0143] In some embodiments, as shown in Figure 25 , a portion of the first pin 15 is embedded in the limiting platform 111, and the first connection end 151 is exposed from the end surface of the limiting platform 111. This arrangement allows the first connection end 151 to be closer to the moving base 2, shortening the path of the connecting line 8 and facilitating the connection between the first connection end 151 and the connecting line 8. Of course, the first connection end 151 is not limited to being located on the limiting platform 111 and can also be located elsewhere on the base 1.

[0144] In some embodiments, as shown in Figures 15 to 18, Figure 17 is a schematic diagram of the structure of the connection circuit 8 on the moving base 2 of Figure 16. The connection circuit 8 includes a connection contact 81, a first terminal 82, and a second terminal 83. The connection contact 81 is connected to the first connection end 151. The first terminal 82 is provided on the moving base 2. The first terminal 82 is electrically connected to the connection contact 81 via a first elastic trace 84. The first terminal 82 is electrically connected to the focus drive device 5 via a focus trace 85. The second terminal 83 is provided on the lens base 3 and is electrically connected to the variable aperture 4. The second terminal 83 is electrically connected to the first terminal 82 via a second elastic trace 86. Among them, as shown in Figures 6 and 10, the second terminal 83 is electrically connected to the external connection end of the variable aperture 4 (such as the second connection ear 462 of the variable aperture 4).

[0145] By providing a first elastic trace 84 between the first terminal 82 and the connection contact 81, the first elastic trace 84 not only functions as an electrical connection but also elastically deforms when the moving base 2 moves in a direction perpendicular to the axial direction Z, thereby providing a restoring force to the moving base 2. By providing a second elastic trace 86 between the second terminal 83 and the first terminal 82, the second elastic trace 86 not only functions as an electrical connection but also elastically deforms when the lens mount 3 moves along the axial direction Z, thereby providing a restoring force to the lens mount 3.

[0146] Each first pin 15 is electrically connected to the focus drive device 5 and the variable aperture 4 via a connecting line 8. For example, as shown in Figures 15 to 18, the four first pins 15 are electrically connected to the focus drive device 5 and the variable aperture 4 via connecting lines 8. In two of the connecting lines 8, the first terminal 82 is disposed on a side of the moving base 2 near the first side 131, and the first elastic trace 84 can elastically deform in the second direction Y to provide a reset force to the moving base 2 in the second direction Y. In the other two connecting lines 8, the first terminal 82 is disposed on a side of the moving base 2 near the second side 132, and the first elastic trace 84 can elastically deform in the first direction X to provide a reset force to the moving base 2 in the first direction X.

[0147] As shown in Figures 15 and 16, the connection contact 81 is welded to the first connection end 151, but this is not limited to this. In addition to welding, the connection contact 81 can also be connected to the first connection end 151 via fasteners (such as screws). As shown in Figures 15 and 16, the connection contact 81 has a sheet-like structure, but this is not limited to this. In addition to a sheet-like structure, the connection contact 81 can also have a block structure, a columnar structure, etc.

[0148] In some embodiments, as shown in Figures 15, 16, and 17, the connection circuit 8 further includes a transfer terminal 87 and a transfer wiring 88. The transfer terminal 87 is provided on the moving base 2, the transfer wiring 88 is connected between the first terminal 82 and the transfer terminal 87, and the second elastic wiring 86 is connected between the transfer terminal 87 and the second terminal 83. By providing the transfer wiring 88 and the transfer terminal 87, the transfer terminal 87 can be provided at the end position of the second elastic wiring 86, and the first terminal 82 can be provided at other positions on the moving base 2, thereby facilitating the placement of the first terminal 82 on the moving base 2, and further facilitating the placement of the first elastic wiring 84 between the first terminal 82 and the connection contact 81.

[0149] In some embodiments, as shown in Figures 16 and 17 , the transfer cable 88 is at least partially embedded in the sports base 2. The transfer cable 88 may be fully or partially embedded in the sports base 2, without specific limitation. By at least partially embedding the transfer cable 88 in the sports base 2, the space occupied by the transfer cable 88 outside the sports base 2 can be reduced. The sports base 2 also protects the embedded transfer cable 88, reducing corrosion damage to the transfer cable 88 from the outside.

[0150] In some embodiments, as shown in Figures 16, 17, and 18, the focus drive device 5 includes a first control unit 52. The first control unit 52 is electrically connected to the focus driver 51, and the focus trace 85 is electrically connected to the first control unit 52. The first control unit 52 is disposed on the side wall of the moving base 2. By disposing the first control unit 52 on the side wall of the moving base 2, the space occupied by the first control unit 52 on the moving base 2 in a direction perpendicular to the axial direction Z can be reduced, thereby reducing the squeeze of the first control unit 52 on the installation space of the lens base 3, which is conducive to the optimized layout of the lens base 3.

[0151] In some embodiments, as shown in Figures 16 and 18 , the first control unit 52 is a driver chip, and a coil escape opening 26 is provided on the side wall of the moving base 2. The focus drive coil 511 of the focus driver 51 is disposed on the first control unit 52. The focus drive coil 511 extends into the lens mount mounting hole 21 through the coil escape opening 26. By disposing the focus drive coil 511 on the first control unit 52, the space occupied by the focus drive coil 511 and the first control unit 52 on the moving base 2 can be reduced, thereby making the moving base 2 more compact.

[0152] In some embodiments, as shown in Figures 16, 17, and 18, a focus trace 85 is embedded in the moving base 2. The focus trace 85 has a control unit connection end 851. The control unit connection end 851 is exposed from the side wall of the moving base 2 and is electrically connected to the first control unit 52. By embedding the focus trace 85 in the moving base 2, the space occupied by the focus trace 85 outside the moving base 2 can be reduced. The moving base 2 also protects the embedded focus trace 85, reducing corrosion damage to the focus trace 85 from the outside.

[0153] 16 , 17 and 18 , the number of the control unit connection terminal 851 , the first terminal 82 , the second terminal 83 and the transfer terminal 87 are all four, but are not limited to four and may be more than four, specifically corresponding to the number of the first pins 15 .

[0154] In some embodiments, as shown in Figures 21, 22, and 26, a second pin 16 is provided on the side 13 of the base 1. The second pin 16 is electrically connected to the anti-shake driving device 6. The side 13 is also provided with a first pin 15. The first pins 15 are respectively provided at the corners 12 on both sides of the second pin 16. By distributing the first pin 15 on both sides of the second pin 16 and being located on the same side 13, the first pin 15 and the second pin 16 are arranged more compactly, thereby facilitating electrical connection between the first pin 15 and the second pin 16 and the module circuit board 600.

[0155] In some embodiments, as shown in Figures 21, 22, and 26, second pins 16 are provided on the first side 131 and the second side 132, respectively. The second pins 16 on the first side 131 are electrically connected to the anti-shake driving device 6, and the second pins 16 on the second side 132 are electrically connected to the anti-shake driving device 6. By electrically connecting the second pins 16 on the same side 13 of the base 1 to the anti-shake driving device 6, the electrical connection path between the second pins 16 and the anti-shake driving device 6 can be shortened, eliminating the need for long wiring between the second pins 16 and the anti-shake driving device 6, thereby simplifying the circuit design of the lens driving device 700.

[0156] As shown in Figures 25 and 26 , first pins 15 are provided on the first side 131 and the second side 132, respectively. On the first side 131, the first pins 15 are located at the corners 12 on either side of the second pin 16, namely, corners 12c and 12b. On the second side 132, the first pins 15 are located at the corners 12 on either side of the second pin 16, namely, corners 12b and 12a. This arrangement allows the first and second pins 15, 16 to be centrally located on the first and second sides 131, 132 of the base 1, thereby facilitating electrical connection between the first and second pins 15, 16, and the module circuit board 600.

[0157] Figure 27 is a diagram illustrating the connection architecture between the camera module 300 and the processor 800 of the electronic device in the first embodiment of the present application, and Figure 28 is a schematic diagram illustrating the circuit connection between the camera module 300 and the processor 800 of the electronic device in the first embodiment of the present application. As shown in Figures 27 and 28, in this embodiment, the electronic device includes the processor 800, and a control unit 610 and external terminals 620 are provided on the module circuit board 600. The control unit 610 is electrically connected to the external terminals 620, the variable aperture 4 of the lens drive device 700, and the focus drive device 5, respectively. The external terminals 620 are electrically connected to the processor 800. The external terminals 620 may be connectors.

[0158] As shown in FIG27 , the electronic device further includes a gyroscope 900, which can obtain posture information of the electronic device, including the angle of the electronic device. The processor 800 and the gyroscope 900 can be integrated together to form a system on a chip (SOC), which is disposed on a motherboard of the electronic device.

[0159] As shown in Figure 28, the focus drive device 5 includes a first control unit 52 and a focus drive 51 electrically connected to the first control unit 52. The focus drive 51 is used to drive the lens mount 3 to move relative to the motion mount 2 along the axial Z of the variable aperture 4. The first control unit 52 is used to send a drive signal to the focus drive 51 to enable the focus drive 51 to work.

[0160] The variable aperture 4 includes a third control unit 49 and an aperture driver 42 electrically connected to the third control unit 49. The aperture driver 42 is configured to drive the aperture rotor 43 to rotate relative to the aperture base 41. The third control unit 49 is configured to send a drive signal to the aperture driver 42 based on the target aperture value to be adjusted, thereby operating the aperture driver 42. The first control unit 52 and the second control unit 62 are both electrically connected to the control unit 610.

[0161] The control unit 610 is used to: when focusing, the control unit 610 calculates the required movement amount of the lens mount 3 based on the position data of the lens mount 3, and then sends a lens mount 3 movement instruction to the first control unit 52, so that the first control unit 52 controls the focus driver 51 to work.

[0162] By setting up the control unit 610, the control unit 610 can perform autofocus control algorithm processing and calculation, that is, the control unit 610 is the calculation module of the focus drive device 5, so that the first control unit 52 only needs to send a drive signal to the focus driver 51 and other tasks, which can simplify the work of the first control unit 52 and thereby improve the working efficiency of the focus drive device 5.

[0163] In addition to being the calculation module for the focus drive device 5, the control unit 610 can also be the calculation module for the variable aperture 4, performing control algorithm processing and calculations for adjusting the aperture value of the variable aperture 4. Specifically, the control unit 610 is configured to: when adjusting the aperture value of the variable aperture 4, the control unit 610 calculates the required rotation amount of the aperture rotor 43 based on the position data of the aperture rotor 43, and then sends an aperture rotor 43 movement instruction to the third control unit 49, causing the third control unit 49 to control the operation of the aperture driver 42. In this way, the third control unit 49 only needs to perform tasks such as sending drive signals to the aperture driver 42, which can simplify the work of the third control unit 49 and thereby improve the efficiency of aperture value adjustment of the variable aperture 4.

[0164] In addition, the control unit 610 can also perform control algorithm processing and calculation for focusing, as well as control algorithm processing and calculation for aperture value adjustment of the variable aperture 4, for the focus driving device 5 and the calculation module of the variable aperture 4.

[0165] In some embodiments, as shown in FIG28 , a portion of the first pins 15 are control signal pins, while another portion of the first pins 15 are power pins. The control signal pins are electrically connected to the first control unit 52 and the third control unit 49 via a first control line 630. The control signal pins are also electrically connected to the control unit 610 via the first control line 630. The power pins are electrically connected to the external terminal 620, the first control unit 52, and the third control unit 49 via a first power line 640. For example, as shown in FIG28 , the first control line 630 may be an I2C / I3C line, and the first power line 640 includes an AF / VA VDD line and a DGND line.

[0166] In some embodiments, as shown in FIG28 , the control unit 610 is electrically connected to the external terminal 620 via multiple lines. The multiple lines connected to the control unit 610 include an SPI line, a DR_VDD line, a VCM VDD line, a DGND line, a DOVD line, an MCLK line, and a first control line 630. The photosensitive element 500 is electrically connected to the external terminal 620 via multiple lines. The multiple lines connected to the photosensitive element 500 include a first control line 630, a high-speed data transmission line, an XVS line, an MCLK line, an RST line, a DOVD line, a DVDD line, an AVDD line, an AGND line, and a DGND line.

[0167] The control unit 610 and the photosensitive element 500 share at least part of the first control line 630, the MCLK line, and the DOVD line, respectively. The control unit 610, the lens driving device 700, and the photosensitive element 500 share at least part of the DGND line. This arrangement further simplifies the circuit design of the camera module 300.

[0168] As shown in Figure 28, the external terminal 620 is electrically connected to the processor 800 through multiple lines, and the multiple lines connected between the processor 800 and the external terminal 620 are respectively the AF / VA VDD line, the DR_VDD line, the VCM VDD line, the SPI line, the first control line 630, the high-speed data transmission line, the XVS line, the MCLK line, the RST line, the DOVD line, the DVDD line, the AVDD line, the AGND line, and the DGND line.

[0169] In some embodiments, as shown in FIG29 , FIG29 is a schematic diagram illustrating the configuration of the first control unit 52 and the third control unit 49 in FIG28 . The first control unit 52 includes a first controller 521 and a first position sensor 522 . The first position sensor 522 and the focus driver 51 are electrically connected to the first controller 521 , respectively. The first position sensor 522 is used to detect the position of the lens mount 3 relative to the motion mount 2 in the axial direction Z.

[0170] The third control unit 49 includes a third controller 491 and a third position sensor 492 . The third position sensor 492 and the aperture driver 42 are electrically connected to the third controller 491 , respectively. The third position sensor 492 is used to detect the position of the aperture rotor 43 relative to the aperture base 41 .

[0171] With such an arrangement, the first control unit 52 and the third control unit 49 both have a position detection function, which can realize multiple modes of control over the aperture value adjustment of the autofocus and the variable aperture 4. The first is separate control, that is, the control unit 610 serves as the calculation module of the focus drive device 5 and the variable aperture 4, and the first control unit 52 and the third control unit 49 only perform drive signal output and position sensing; the second is integrated control, that is: the first control unit 52 and the third control unit 49 not only process and calculate the control algorithm, but also output the drive signal and perform position sensing. Specifically, the first control unit 52 can realize closed-loop control of the focus driver 51 according to the data detected by the first position sensor 522, and the third control unit 49 can realize closed-loop control of the aperture driver 42 according to the data detected by the third position sensor 492.

[0172] The first position sensor 522 and the third position sensor 492 can be one of the following sensors: a Hall effect sensor (Hall for short) or a TMR (tunnel magnetoresistance effect) sensor.

[0173] In some embodiments, as shown in FIG. 27 and FIG. 28 , the anti-shake driving device 6 is electrically connected to the control unit 610 .

[0174] Specifically, as shown in Figures 21, 22, and 28, the anti-shake drive device 6 includes an anti-shake driver 61 and a second position sensor 60. The anti-shake driver 61 is used to drive the moving base 2 to move relative to the base 1 in a direction perpendicular to the axial direction Z, and the second position sensor 60 is used to detect the position of the moving base 2 relative to the base 1 in the direction perpendicular to the axial direction Z. The second pin 16 includes a plurality of sub-pins 161, a portion of which is electrically connected to the second position sensor 60, and another portion of which is electrically connected to the anti-shake driver 61.

[0175] The control unit 610 is used to calculate the required movement amount of the moving base 2 according to the position data of the moving base 2 detected by the second position sensor 60 during anti-shake, and then send a driving signal to the anti-shake driver 61 to enable the anti-shake driver 61 to work.

[0176] By electrically connecting the anti-shake driver 61 and the second position sensor 60 of the anti-shake driver device 6 with the control unit 610, the anti-shake driver device 6 can be controlled by the control unit 610. The control unit 610 can control the operation of the anti-shake driver 61 according to the data detected by the second position sensor 60. In this way, the anti-shake driver device 6 does not need to be equipped with a control component, which is conducive to simplifying the structure of the anti-shake driver device 6.

[0177] As shown in FIG28 , a portion of the sub-pins 161 are electrically connected to the second position sensor 60 and the control unit 610 via first signal lines, while another portion of the sub-pins 161 are electrically connected to the anti-shake driver 61 and the control unit 610 via second signal lines (the coil+ and coil- signal lines shown in the figure). The first signal lines include input signal lines (the IN+ and IN- signal lines in the figure) and output signal lines (the OUT+ and OUT- signal lines in the figure).

[0178] The second position sensor 60 may be one of the following sensors: a Hall effect sensor (Hall for short), a TMR (tunnel magnetoresistance effect) sensor.

[0179] The following is an introduction to the control flow of the camera module 300 in the first embodiment of the present application: specifically as shown in Figure 30, Figure 30 is a control flow chart of the camera module 300 in the first embodiment of the present application.

[0180] Focus control: The processor 800 sends a focus instruction to the control unit 610, and the control unit 610 obtains the position information of the lens mount 3, and then determines whether focus control is required based on the position information of the lens mount 3; if focus control is required, the control unit 610 performs a control operation based on the position information of the lens mount 3, and after the operation is completed, sends a control instruction to the first control unit 52, and after receiving the control instruction, the first control unit 52 sends a drive signal to the focus driver 51, and then the focus driver 51 drives the lens mount 3 to focus; if focus control is not required, the control unit 610 continues to obtain the position information of the lens mount 3 to determine whether focus control is required.

[0181] The position information of the lens mount 3 can be detected by the first position sensor 522 .

[0182] Control of the variable aperture 4: The processor 800 sends an aperture value adjustment instruction to the control unit 610, and the control unit 610 sends a control instruction to the third control unit 49. After receiving the control instruction, the third control unit 49 controls the aperture driver 42 in a closed loop to achieve the target aperture value.

[0183] Anti-shake control: The processor 800 sends an anti-shake instruction to the control unit 610, and the control unit 610 enters the anti-shake mode. The control unit 610 obtains the posture information of the electronic device and the position information of the moving seat 2. Then, based on the posture information of the electronic device and the position information of the moving seat 2, the control unit 610 performs control operations and outputs a drive signal to the anti-shake driver 61. Then, the anti-shake driver 61 drives the moving seat 2 to move to achieve anti-shake.

[0184] The posture information of the electronic device can be detected by the gyroscope 900 .

[0185] FIG31 is a diagram illustrating the connection architecture of the camera module 300 and the processor 800 of the electronic device in the second embodiment of the present application, and FIG32 is a diagram illustrating the circuit connection principle between the camera module 300 and the processor 800 of the electronic device in the second embodiment of the present application. The main difference between the camera module 300 in the second embodiment and the camera module 300 in the first embodiment is that the structure of the anti-shake drive device 6 and the connection method with the module circuit board 600 are different, as described below:

[0186] As shown in Figures 31 and 32, a control unit 610 and an external terminal 620 are provided on the module circuit board 600. The control unit 610 is electrically connected to the external terminal 620, the variable aperture 4 of the lens driving device 700, and the focus driving device 5 respectively. The anti-shake driving device 6 of the lens driving device 700 is electrically connected to the external terminal 620 through the first connecting line 650 on the module circuit board 600, and the external terminal 620 is electrically connected to the processor 800.

[0187] As shown in FIG32 , the anti-shake drive device 6 includes a second control unit 62 and an anti-shake driver 61 electrically connected to the second control unit 62 . The anti-shake driver 61 is configured to drive the moving seat 2 to move relative to the base 1 in a direction perpendicular to the axial direction Z. The second control unit 62 is configured to send a drive signal to the anti-shake driver 61 to activate the anti-shake driver 61 . The second pin 16 includes a plurality of sub-pins 161 , each of which is electrically connected to the second control unit 62 . The second pin 16 is electrically connected to the external terminal 620 via a first connecting trace 650 .

[0188] In this embodiment, the anti-shake driver 61 is controlled by the second control unit 62 rather than the control unit 610. This reduces the computational complexity of the control unit 610, thereby facilitating better control of the variable aperture 4 and the focus drive 5 by the control unit 610. Because the sub-pins 161 of the second pin 16 are all electrically connected to the second control unit 62, the number of components connected between the second pin 16 and the anti-shake driver 6 is reduced, thereby reducing the number of sub-pins 161 in the second pin 16 and simplifying the circuit design of the camera module 300.

[0189] In some embodiments, as shown in FIG33 , FIG33 is a schematic diagram illustrating the configuration of the first control unit 52, the second control unit 62, and the third control unit 49 in FIG32 . The second control unit 62 includes a second controller 621 and a second position sensor 60. The second position sensor 60 and the anti-shake driver 61 are electrically connected to the second controller 621, respectively. The second position sensor 60 is used to detect the position of the moving seat 2 relative to the base 1 in a direction perpendicular to the axial direction Z.

[0190] Since the second control unit 62 includes the second controller 621 and the second position sensor 60, that is, the second control unit 62 has a position detection function, the second control unit 62 can realize closed-loop control of the anti-shake driver 61 according to the data detected by the second position sensor 60, thereby making the anti-shake control of the anti-shake drive device 6 more precise.

[0191] In some embodiments, as shown in Figures 21, 22, and 32, a second pin 16 is provided on the first side 131 or the second side 132. The second pin 16 is electrically connected to the anti-shake drive device 6 located on the first side 131 and the second side 132, respectively (i.e., the anti-shake drive devices 6 on the left and right sides in Figure 32). With this arrangement, the anti-shake drive devices 6 located on the first side 131 and the second side 132 share the second pin 16, which reduces the number of sub-pins 161 of the second pin 16, thereby further simplifying the circuit design of the camera module 300.

[0192] In some embodiments, as shown in Figures 31 and 32 , the first connection traces 650 include I2C / I3C lines, VCM / VDD lines, and DGND lines. The anti-shake drive device 6 and the photosensitive element 500 each share at least some of the I2C / I3C lines and DGND lines. This arrangement further simplifies the circuit design of the camera module 300.

[0193] The following is an introduction to the control flow of the camera module 300 in the second embodiment of the present application: specifically as shown in Figure 34, Figure 34 is a control flow chart of the camera module 300 in the second embodiment of the present application.

[0194] Focus control: The processor 800 sends a focus instruction to the control unit 610, and the control unit 610 obtains the position information of the lens mount 3, and then determines whether focus control is required based on the position information of the lens mount 3; if focus control is required, the control unit 610 performs a control operation based on the position information of the lens mount 3, and after the operation is completed, sends a control instruction to the first control unit 52, and after receiving the control instruction, the first control unit 52 sends a drive signal to the focus driver 51, and then the focus driver 51 drives the lens mount 3 to focus; if focus control is not required, the control unit 610 continues to obtain the position information of the lens mount 3 to determine whether focus control is required.

[0195] The position information of the lens mount 3 can be detected by the first position sensor 522 .

[0196] Control of the variable aperture 4: The processor 800 sends an aperture value adjustment instruction to the control unit 610, and the control unit 610 sends a control instruction to the third control unit 49. After receiving the control instruction, the third control unit 49 controls the aperture driver 42 in a closed loop to achieve the target aperture value.

[0197] Anti-shake control: After the processor 800 enters anti-shake control mode, it calculates the amount of motion of the moving base 2 based on the electronic device's posture information and the position information of the moving base 2. The processor 800 then issues a control signal indicating that the moving base 2 needs to move. Upon receiving this control signal, the second control unit 62 initiates closed-loop control of the anti-shake driver 61, moving the moving base 2 to the target position. The processor 800 then obtains the position information of the moving base 2 for the next round of anti-shake control.

[0198] The posture information of the electronic device can be detected by the gyroscope 900 .

[0199] Figure 35 is a diagram illustrating the connection architecture of the camera module 300 and the processor 800 of the electronic device in the third embodiment of the present application, and Figure 36 is a diagram illustrating the circuit connection principle between the camera module 300 and the processor 800 of the electronic device in the third embodiment of the present application. The main difference between the camera module 300 in the second embodiment and the camera module 300 in the second embodiment is that the variable aperture 4, the focus drive device 5, and the anti-shake drive device 6 are connected to the pins in a different manner, as described below:

[0200] As shown in Figures 35 and 36, an external terminal 620 is provided on the module circuit board 600. The variable aperture 4, focus drive device 5 and anti-shake drive device 6 of the lens drive device 700 are electrically connected to the external terminal 620 through the second connecting line 660 on the module circuit board 600, and the external terminal 620 is electrically connected to the processor 800.

[0201] As shown in Figure 35, the focus drive device 5 includes a first control unit 52 and a focus driver 51 electrically connected to the first control unit 52. The focus driver 51 is used to drive the lens mount 3 to move relative to the motion mount 2 along the axis of the variable aperture 4. The first control unit 52 is used to send a drive signal to the focus driver 51 to enable the focus driver 51 to work.

[0202] The anti-shake drive device 6 includes a second control unit 62 and an anti-shake driver 61 electrically connected to the second control unit 62. The anti-shake driver 61 is used to drive the moving seat 2 to move relative to the base 1 in a direction perpendicular to the axial direction Z. The second control unit 62 is used to send a drive signal to the anti-shake driver 61 to enable the anti-shake driver 61 to work.

[0203] The variable aperture 4 includes a third control unit 49 and an aperture driver 42 electrically connected to the third control unit 49. The aperture driver 42 is configured to drive the aperture rotor 43 to rotate relative to the aperture base 41. The third control unit 49 is configured to send a drive signal to the aperture driver 42 based on the target aperture value to be adjusted, thereby operating the aperture driver 42. The first control unit 52, the second control unit 62, and the third control unit 49 are all electrically connected to the external terminal 620 via a second connecting line 660.

[0204] In this embodiment, the variable aperture 4, the focus drive device 5, and the anti-shake drive device 6 are controlled by their own control modules and do not need to be controlled by the control unit 610 on the module circuit board 600. In this way, there is no need to set up the control unit 610 on the module circuit board 600, which not only saves space on the module circuit board 600, but also simplifies the circuit design on the module circuit board 600, thereby simplifying the circuit design of the camera module 300.

[0205] In some embodiments, as shown in FIG36 , the variable aperture 4 and the focus drive device 5 form a first module, and at least a portion of the first pins 15 are shared pins between the first module and the second control unit 62. This arrangement can further reduce the number of pins of the lens drive device 700, thereby simplifying the circuit design of the camera module 300.

[0206] In some embodiments, as shown in Figure 36, a portion of the first pins 15 are shared pins and are all electrically connected to the first control unit 52, the second control unit 62 and the third control unit 49, and another portion of the first pins 15 are all electrically connected to the first control unit 52 and the third control unit 49.

[0207] By making a portion of the first pins 15 common pins, the number of pins of the lens driving device 700 can be reduced, and non-common pins can be respectively set for the first module and the anti-shake driving device 6 to meet the different configuration requirements of the first module and the anti-shake driving device 6, such as different configuration requirements of the power supply voltage.

[0208] For example, as shown in FIG36 , there are four first pins 15 , three of which are shared pins. These three shared pins are electrically connected to the first control unit 52 , the second control unit 62 , and the third control unit 49 via I2C / I3C lines and a DGND line. Another first pin 15 is electrically connected to the first control unit 52 and the third control unit 49 via an AF / VA VDD line. The base 1 is also provided with a third pin, which is electrically connected to the second control unit 62 via a VCM VDD line. Second connection traces 660 include an I2C / I3C line, a VCM VDD line, an AF / VA VDD line, and a DGND line.

[0209] In some embodiments, the first control unit 52 includes a first controller 521 and a first position sensor 522, the first position sensor 522 and the focus driver 51 are electrically connected to the first controller 521, respectively, and the first position sensor 522 is used to detect the position of the lens mount 3 relative to the motion seat 2 in the axial direction Z; the second control unit 62 includes a second controller 621 and a second position sensor 60, the second position sensor 60 and the anti-shake driver 61 are electrically connected to the second controller 621, respectively, and the second position sensor 60 is used to detect the position of the motion seat 2 in a direction perpendicular to the axial direction Z; the third control unit 49 includes a third controller 491 and a third position sensor 492, the third position sensor 492 and the aperture driver 42 are electrically connected to the third controller 491, respectively, and the third position sensor 492 is used to detect the position of the aperture rotor 43 relative to the aperture base 41.

[0210] With such an arrangement, the first control unit 52, the second control unit 62, and the third control unit 49 can have a position detection function, so that the first control unit 52 can realize closed-loop control of the focus driver 51 according to the data detected by the first position sensor 522, the second control unit 62 can realize closed-loop control of the anti-shake driver 61 according to the data detected by the second position sensor 60, and the third control unit 49 can realize closed-loop control of the aperture driver 42 according to the data detected by the third position sensor 492, thereby making the focus control of the focus drive device 5, the adjustment control of the aperture value of the variable aperture 4, and the anti-shake control of the anti-shake drive device 6 more precise.

[0211] The following is an introduction to the control flow of the camera module 300 in the third embodiment of the present application: specifically as shown in Figure 37, Figure 37 is a control flow chart of the camera module 300 in the third embodiment of the present application.

[0212] Focus control: The processor 800 sends a focus instruction. After receiving the focus instruction, the first control unit 52 performs closed-loop control on the focus driver 51 to move the lens holder 3 to the target position.

[0213] Control of the variable aperture 4: The processor 800 sends an aperture value adjustment instruction to the control unit 610, and the control unit 610 sends a control instruction to the third control unit 49. After receiving the control instruction, the third control unit 49 controls the aperture driver 42 in a closed loop to make the variable aperture 4 reach the target aperture value.

[0214] Anti-shake control: After the processor 800 enters anti-shake control mode, it calculates the amount of motion of the moving base 2 based on the electronic device's posture information and the position information of the moving base 2. The processor 800 then issues a control signal indicating that the moving base 2 needs to move. Upon receiving this control signal, the second control unit 62 initiates closed-loop control of the anti-shake driver 61, moving the moving base 2 to the target position. The processor 800 then obtains the position information of the moving base 2 for the next round of anti-shake control.

[0215] The posture information of the electronic device can be detected by the gyroscope 900 .

[0216] The types of hatching in the drawings of this application are for the purpose of distinguishing different components and should not be understood as limiting the materials of the components. The drawings of this application are for the purpose of illustrating the structural composition and are not shown to scale with the actual product.

[0217] Although the description of this application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to these embodiments. On the contrary, the purpose of introducing the application in conjunction with the embodiments is to cover other options or modifications that may be extended based on the claims of this application. In order to provide a deep understanding of this application, the above description will contain many specific details. This application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of this application, some specific details will be omitted in the description. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other unless there is a conflict.

[0218] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," or "third" may explicitly or implicitly include one or more of the features.

[0219] In the embodiments of this application, "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0220] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The directional terms mentioned in the embodiments of the present application, such as "up", "down", "left", "right", "inside", "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. "Multiple" means at least two.

[0221] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0222] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lens driving device, characterized in that, Comprising: A base (1); A moving seat (2), arranged on the base (1); A lens seat (3), arranged on the moving seat (2), and the lens seat (3) is used for mounting an optical lens (400); A variable aperture (4), arranged on a side of the lens seat (3) away from the base (1); A focusing drive device (5), used for driving the lens seat (3) to move relative to the moving seat (2) along the axial direction (Z) of the variable aperture (4); An anti-shake drive device (6), used for driving the moving seat (2) to move relative to the base (1) along a direction perpendicular to the axial direction (Z); Wherein, the base (1) has a plurality of corner portions (12) along the circumferential direction, at least two of the corner portions (12) are provided with first pins (15), the first pins (15) have a first connection end (151) and a second connection end (152), the first connection end (151) is electrically connected to the variable aperture (4) and the focusing drive device (5) through a connection line (8), and the second connection end (152) is an external connection end.

2. The lens drive device according to claim 1, wherein The first pin (15) is embedded in the base (1), and the first connection end (151) is exposed from the surface of the base (1) and connected to the connection line (8), and the second connection end (152) extends out of the base (1).

3. The lens drive device according to claim 1 or 2, wherein The connection line (8) includes: A connection contact (81), connected to the first connection end (151); A first terminal (82), arranged on the moving seat (2), the first terminal (82) is electrically connected to the connection contact (81) through a first elastic trace (84), and the first terminal (82) is electrically connected to the focusing drive device (5) through a focusing trace (85); A second terminal (83), arranged on the lens seat (3) and electrically connected to the variable aperture (4), the second terminal (83) is electrically connected to the first terminal (82) through a second elastic trace (86).

4. The lens drive device according to claim 3, wherein The connection line (8) further includes an adapter terminal (87) and an adapter trace (88), the adapter terminal (87) is arranged on the moving seat (2), the adapter trace (88) is connected between the first terminal (82) and the adapter terminal (87), and the second elastic trace (86) is connected between the adapter terminal (87) and the second terminal (83).

5. The lens drive device according to claim 4, wherein At least part of the adapter trace (88) is embedded in the moving seat (2).

6. The lens drive device according to any one of claims 3 to 5, wherein The focus driving device (5) includes a first control unit (52) and a focus driver (51) electrically connected to the first control unit (52). The focus driver (51) is configured to drive the lens mount (3) to move relative to the moving mount (2) along the axial direction (Z). The focus trace line (85) is electrically connected to the first control unit (52), and the first control unit (52) is disposed on the side wall of the moving mount (2).

7. The lens driving device according to claim 6, wherein the focus trace line (85) is embedded in the moving mount (2). The focus trace line (85) has a control unit connection end (851) that exposes from the side wall of the moving mount (2) and is electrically connected to the first control unit (52).

8. The lens driving device according to any one of claims 1 to 7, wherein a second pin (16) is provided at the side edge (13) of the base (1). The second pin (16) is electrically connected to the anti-shake driving device (6). The first pin (15) is also provided at the side edge (13), and the first pin (15) is respectively disposed at the corner portions (12) on both sides of the second pin (16).

9. The lens driving device according to claim 8, wherein the side edge (13) includes a first side edge (131) and a second side edge (132) arranged adjacent to each other; the anti-shake driving device (6) is respectively provided at the first side edge (131) and the second side edge (132). The anti-shake driving device (6) at the first side edge (131) is configured to drive the moving mount (2) to move relative to the base (1) along a first direction (X), and the anti-shake driving device (6) at the second side edge (132) is configured to drive the moving mount (2) to move relative to the base (1) along a second direction (Y). The first direction (X), the second direction (Y), and the axial direction (Z) are perpendicular to each other in pairs; the second pin (16) is respectively provided at the first side edge (131) and the second side edge (132). The second pin (16) at the first side edge (131) is electrically connected to the anti-shake driving device (6), and the second pin (16) at the second side edge (132) is electrically connected to the anti-shake driving device (6).

10. The lens driving device according to claim 8 or 9, wherein the anti-shake driving device (6) includes an anti-shake driver (61) and a second position sensor (60). The anti-shake driver (61) is configured to drive the moving mount (2) to move relative to the base (1) along a direction perpendicular to the axial direction (Z), and the second position sensor (60) is configured to detect the position of the moving mount (2) relative to the base (1) in the direction perpendicular to the axial direction (Z). The second pin (16) includes a plurality of sub-pins (161), and a part of the sub-pins (161) are electrically connected to the second position sensor (60), and another part of the sub-pins (161) are electrically connected to the anti-shake driver (61).

11. The lens driving device according to claim 8, wherein The side (13) includes a first side (131) and a second side (132) arranged adjacent to each other; The anti-shake driving devices (6) are respectively provided at the first side (131) and the second side (132). The anti-shake driving device (6) at the first side (131) is configured to drive the moving seat (2) to move relative to the base (1) along a first direction (X), and the anti-shake driving device (6) at the second side (132) is configured to drive the moving seat (2) to move relative to the base (1) along a second direction (Y); the first direction (X), the second direction (Y), and the axial direction (Z) are perpendicular to each other in pairs; The second pin (16) is provided at the first side (131) or the second side (132), and the second pin (16) is electrically connected to the anti-shake driving devices (6) located at the first side (131) and the second side (132) respectively.

12. The lens driving device according to claim 8 or 11, wherein The anti-shake driving device (6) includes a second control unit (62) and an anti-shake driver (61) electrically connected to the second control unit (62). The anti-shake driver (61) is configured to drive the moving seat (2) to move relative to the base (1) in a direction perpendicular to the axial direction (Z); the second pin (16) includes a plurality of sub-pins (161), and each sub-pin (161) is electrically connected to the second control unit (62).

13. The lens driving device according to claim 12, wherein The second control unit (62) includes a second controller (621) and a second position sensor (60). The second position sensor (60) and the anti-shake driver (61) are respectively electrically connected to the second controller (621), and the second position sensor (60) is configured to detect the position of the moving seat (2) relative to the base (1) in a direction perpendicular to the axial direction (Z).

14. The lens driving device according to any one of claims 1 to 7, wherein The variable aperture (4) and the focusing driving device (5) form a first module, and at least a part of the first pins (15) are common pins of the first module and the anti-shake driving device (6).

15. The lens driving device according to claim 14, wherein The focus driving device (5) includes a first control unit (52) and a focus driver (51) electrically connected to the first control unit (52). The focus driver (51) is configured to drive the lens mount (3) to move relative to the moving base (2) along the axial direction (Z). The anti-shake driving device (6) includes a second control unit (62) and an anti-shake driver (61) electrically connected to the second control unit (62). The anti-shake driver (61) is configured to drive the moving base (2) to move relative to the base (1) in a direction perpendicular to the axial direction (Z). The variable aperture (4) includes a third control unit (49) and an aperture driver (42) electrically connected to the third control unit (49). The aperture driver (42) is configured to drive the variable aperture (4) to change the light passing amount. A part of the number of the first pins (15) are the common pins and are all electrically connected to the first control unit (52), the second control unit (62) and the third control unit (49). Another part of the number of the first pins (15) are all electrically connected to the first control unit (52) and the third control unit (49).

16. The lens driving device according to claim 15, wherein the first control unit (52) includes a first controller (521) and a first position sensor (522). The first position sensor (522) and the focus driver (51) are respectively electrically connected to the first controller (521). The first position sensor (522) is configured to detect the position of the lens mount (3) relative to the moving base (2) in the axial direction (Z). the second control unit (62) includes a second controller (621) and a second position sensor (60). The second position sensor (60) and the anti-shake driver (61) are respectively electrically connected to the second controller (621). The second position sensor (60) is configured to detect the position of the moving base (2) in a direction perpendicular to the axial direction (Z). The variable aperture (4) includes an aperture base (41), an aperture rotor (43) disposed on the aperture base (41), and blades (44) disposed on the aperture rotor (43). The aperture driver (42) is configured to drive the aperture rotor (43) to rotate relative to the aperture base (41), and the blades (44) can move with the aperture rotor (43) to change the light passing amount. The third control unit (49) includes a third controller (491) and a third position sensor (492). The third position sensor (492) and the aperture driver (42) are respectively electrically connected to the third controller (491). The third position sensor (492) is configured to detect the position of the aperture rotor (43) relative to the aperture base (41).

17. A camera module, characterized in that, It includes an optical lens (400), an image sensor (500), a module circuit board (600), and a lens driving device (700) according to any one of claims 1 to 16. The lens driving device (700) and the image sensor (500) are both disposed on the module circuit board (600), and the image sensor (500) is located on the image side of the optical lens (400).

18. The camera module according to claim 17, wherein a control unit (610) and an external terminal (620) are provided on the module circuit board (600), and the control unit (610) is electrically connected to the external terminal (620), the variable aperture (4), the focusing driving device (5), and the anti-shake driving device (6) of the lens driving device (700) respectively.

19. The camera module according to claim 17, wherein a control unit (610) and an external terminal (620) are provided on the module circuit board (600), the control unit (610) is electrically connected to the external terminal (620), the variable aperture (4), and the focusing driving device (5) of the lens driving device (700) respectively, and the anti-shake driving device (6) of the lens driving device (700) is electrically connected to the external terminal (620) through a first connection trace (650) on the module circuit board (600).

20. The camera module according to claim 17, wherein an external terminal (620) is provided on the module circuit board (600), and the variable aperture (4), the focusing driving device (5), and the anti-shake driving device (6) of the lens driving device (700) are electrically connected to the external terminal (620) through a second connection trace (660) on the module circuit board (600).

21. An electronic device, characterized in that, It includes a housing (200) and a camera module (300) according to any one of claims 17 to 20, and the camera module (300) is disposed on the housing (200).

22. An electronic device, characterized in that, It includes a processor (800) and a camera module (300) according to any one of claims 18 to 20, and the external terminal (620) of the camera module (300) is electrically connected to the processor (800).

Images