Lens motors, camera modules and electronic equipment

Abstract

The present application provides a lens motor, a camera module and an electronic device. The lens motor includes a stator, a focus bracket, an anti-shake bracket, a focus drive mechanism, an anti-shake drive mechanism and a drive chip. The focus bracket is movably connected to the stator, the anti-shake bracket is movably connected to the focus bracket and is located on the inner side of the focus bracket, and the anti-shake bracket is used to install the lens. The drive chip is used to control the focus drive mechanism so that the focus drive mechanism drives the focus bracket to drive the anti-shake bracket to move relative to the stator along a first direction. The drive chip is also used to control the anti-shake drive mechanism so that the anti-shake drive mechanism drives the anti-shake bracket to move relative to the focus bracket along a second direction and a third direction. The drive chip in the present application is built into the lens motor, so that during the production process of the camera module, the relevant calibration data can be directly burned into the drive chip in the lens motor at the motor factory, saving the subsequent calibration process in the module factory and improving production efficiency.

Description

Technical Field

[0001] The present application relates to the field of camera technology, and in particular to a lens motor, a camera module and an electronic device. Background Art

[0002] With the popularity and development of smart phones, mobile phone photography has become a common way of shooting, and mobile phones with both optical image stabilization and autofocus functions are becoming more and more popular among users. The traditional camera module includes a module circuit board, an anti-shake driver chip, and a focus driver chip. Since the anti-shake driver chip and the focus driver chip are both made on the module circuit board, the anti-shake driver chip and the focus driver chip cannot be burned with calibration data in the motor factory during the production process, and need to be calibrated in the subsequent module factory, which makes the driver chip calibration process more complicated and the overall production efficiency of the camera module is low. Summary of the invention

[0003] The embodiments of the present application provide a lens motor, a camera module including the lens motor, and an electronic device including the camera module, aiming to obtain a lens motor and a camera module with a simpler process flow and higher production efficiency.

[0004] In a first aspect, a lens motor is provided. The lens motor includes a stator, a focus bracket, an anti-shake bracket, a focus drive mechanism, an anti-shake drive mechanism, and a drive chip. The focus bracket is movably connected to the stator, the anti-shake bracket is movably connected to the focus bracket and is located on the inner side of the focus bracket, and the anti-shake bracket is used to install the lens. The drive chip is used to control the focus drive mechanism so that the focus drive mechanism drives the focus bracket to drive the anti-shake bracket to move relative to the stator in a first direction. The drive chip is also used to control the anti-shake drive mechanism so that the anti-shake drive mechanism drives the anti-shake bracket to move relative to the focus bracket in a second direction and a third direction. The first direction is the optical axis direction of the lens, and the second direction and the third direction are different from the first direction.

[0005] It is understandable that the driver chip of a traditional lens motor is usually arranged on a module circuit board outside the lens motor. This makes it impossible to burn relevant calibration data to the driver chip at the motor factory during the production of the camera module, and the driver chip needs to be calibrated at the module factory. The driver chip in the present application is built into the lens motor, so that during the production of the camera module, the relevant calibration data can be directly burned into the driver chip in the lens motor at the motor factory, saving the subsequent calibration process at the module factory and improving production efficiency. At the same time, when the characteristics of the lens motor vary due to factors such as reliability or module process, it is beneficial to compare the data of the lens motor after the characteristic variation.

[0006] In addition, compared to the lens motor that requires multiple driver chips to control the anti-shake drive mechanism and the focus drive mechanism respectively, the lens motor in this application controls the anti-shake drive mechanism and the focus drive mechanism at the same time through a driver chip. When one of the anti-shake drive mechanism and the focus drive mechanism needs to obtain the position information of the other, the driver chip can obtain the corresponding position information by performing corresponding algorithm compensation. In this way, the information exchange between the anti-shake drive mechanism and the focus drive mechanism is faster, and the driver chip does not need to perform additional data burning, which is conducive to improving the efficiency of the driver chip in obtaining position information and improving the response speed of the lens motor.

[0007] In addition, the lens motor of the present application is an integrated motor with both anti-shake and focus functions, and the driver chip is built into the lens motor. In this way, the driver chip inside the lens motor can simultaneously control the focus bracket to drive the anti-shake bracket to move relative to the stator along the first direction to achieve the focus function, and control the anti-shake bracket to move relative to the focus bracket along the second direction and the third direction to achieve the anti-shake function. Compared with the split lens motor in which the focus bracket and the anti-shake bracket are separately arranged, the lens motor of the present application is smaller in size, which is conducive to the miniaturization of the lens motor and is conducive to saving the internal space of the electronic equipment.

[0008] In a possible implementation, the stator includes a base, the focus bracket is movably connected to the base, the base is provided with a first avoidance hole, and the first avoidance hole connects the outer peripheral side and the inner peripheral side of the base. The lens motor also includes a circuit board, the circuit board is fixed to the outer peripheral side of the base, the driver chip is fixed on the circuit board and electrically connected to the circuit board, and at least part of the driver chip is located in the first avoidance hole. In this way, by using the thickness of the base to set the driver chip in the first avoidance hole, the space occupied by the driver chip inside the lens motor can be effectively reduced, which is conducive to improving the space utilization rate of the lens motor.

[0009] In one possible implementation, the anti-shake drive mechanism includes an anti-shake coil and an anti-shake magnetic component. The anti-shake coil is fixed on a circuit board and electrically connected to the circuit board. The anti-shake magnetic component is fixed on an anti-shake bracket, and the anti-shake coil and the anti-shake magnetic component are arranged opposite to each other. The anti-shake coil is electrically connected to a drive chip, and the drive chip is also used to control the anti-shake coil, so as to drive the anti-shake bracket to move in a second direction relative to the focus bracket through the cooperation of the anti-shake coil and the anti-shake magnetic component, or to drive the anti-shake bracket to move in a third direction relative to the focus bracket. In this way, the drive chip can control the anti-shake coil, and drive the anti-shake bracket to move through the driving force generated by the cooperation between the anti-shake coil and the anti-shake magnetic component, so as to realize the anti-shake function of the lens motor.

[0010] In a possible implementation, the anti-shake coil is directed toward the anti-shake magnetic part through the first avoidance hole. In this way, the anti-shake coil and the driver chip can be located on the same side of the circuit board. At the same time, the anti-shake coil and the driver chip are both located in the first avoidance hole, which can effectively reduce the space occupied by the anti-shake coil and the driver chip inside the lens motor, which is conducive to improving the space utilization of the lens motor.

[0011] In a possible implementation, the base is provided with a first avoidance groove, and the first avoidance groove runs through the bottom of the base. The focus bracket is provided with a second avoidance groove, and the second avoidance groove is connected to the bottom space of the anti-shake bracket and the first avoidance groove. The first avoidance groove, the second avoidance groove and the bottom space of the anti-shake bracket constitute an installation space, and the installation space is used to accommodate a part of the prism.

[0012] It can be understood that the lens motor of the present application is provided with an installation space, and at least a part of the prism can be located in the installation space, so that the lens motor can be sunk relative to the prism to reduce the height of the lens motor, thereby achieving an overall reduction in the height of the camera module, which is conducive to realizing a thin setting of the camera module. At the same time, the overall structure of the camera module is more compact, which is conducive to saving the internal space of the electronic device.

[0013] In a possible implementation, the anti-shake bracket includes a first bracket and a second bracket, the first bracket is located between the focus bracket and the bottom of the second bracket, the first bracket is movably connected to the focus bracket, and the second bracket is movably connected to the first bracket. The driving chip is used to control the anti-shake driving mechanism so that the anti-shake driving mechanism drives the first bracket to drive the second bracket to move relative to the focus bracket along the second direction, and the driving chip is also used to control the anti-shake driving mechanism so that the anti-shake driving mechanism drives the second bracket to move relative to the first bracket along the third direction. In this way, by stacking the first bracket and the second bracket, and then controlling the first bracket to move relative to the focus bracket along the second direction, and the second bracket to move relative to the first bracket along the third direction, the anti-shake bracket can drive the lens to move relative to the focus bracket along the second direction and along the third direction, thereby realizing the anti-shake function.

[0014] In a possible implementation, the anti-shake coil includes a first coil and a second coil, the anti-shake magnetic part includes a first magnetic part and a second magnetic part, the first coil is arranged opposite to the first magnetic part, and the second coil is arranged opposite to the second magnetic part. The driving chip is used to control the first coil, so as to drive the first bracket to move relative to the focus bracket in the second direction through the cooperation between the first coil and the first magnetic part, and the driving chip is also used to control the second coil, so as to drive the second bracket to move relative to the first bracket in the third direction through the cooperation between the second coil and the second magnetic part. In this way, the driving chip can control the first coil and the second coil respectively, drive the first bracket to move through the driving force generated by the cooperation between the first coil and the first magnetic part, and drive the second bracket to move through the driving force generated by the cooperation between the second coil and the second magnetic part, thereby realizing the anti-shake function of the lens motor.

[0015] In a possible implementation, the first coil includes a first sub-coil and a second sub-coil, the first magnetic member includes a first sub-magnetic member and a second sub-magnetic member, the first sub-magnetic member and the second sub-magnetic member are located between the first sub-coil and the second sub-coil, the first sub-coil and the first sub-magnetic member are arranged opposite to each other, and the second sub-coil and the second sub-magnetic member are arranged opposite to each other. In this way, by superimposing the driving force generated by the cooperation of the first sub-coil and the first sub-magnetic member and the driving force generated by the cooperation of the second sub-coil and the second sub-magnetic member, the driving force of the anti-shake driving mechanism on the first bracket can be increased, which is beneficial to increasing the moving speed of the first bracket and increasing the anti-shake response speed of the lens motor in the second direction.

[0016] In a possible implementation, the first bracket is movably connected to the focus bracket via a ball bearing, and / or the second bracket is movably connected to the first bracket via a ball bearing. It is understandable that, since the friction coefficient of the ball bearing is small, the friction between the first bracket and the focus bracket is small, and the friction between the second bracket and the first bracket is small, thereby reducing the driving force required by the anti-shake driving mechanism, which is beneficial to reducing the energy loss of the lens motor and improving the battery life of the electronic device.

[0017] In a possible implementation, the first bracket includes a first branch and a second branch, the second branch is connected to the first branch, and the angle between the second branch and the first branch is less than 180°. The bottom of the focusing bracket includes a first part and a second part, the second part is stacked on the first part, a part of the second part is arranged opposite to the first branch, and another part of the second part is arranged opposite to the second branch. In this way, the second part can be raised relative to the first part, and the first bracket can be sunk relative to the second part, thereby reducing the overall thickness of the lens motor, which is conducive to realizing a thin setting of the lens motor. At the same time, the second part is raised relative to the first part, so that the bottom space of the second part can be released, which is conducive to increasing the available space inside the lens motor.

[0018] In a possible implementation, the base space is located at the bottom of the second part. The inner side of the first part faces the bottom space. In this way, the bottom space of the second part can also be used to accommodate at least part of the prism, thereby achieving an overall reduction in the height of the camera module, which is conducive to achieving a thinner setting of the camera module. At the same time, the overall structure of the camera module is more compact, which is conducive to saving the internal space of the electronic device.

[0019] In one possible implementation, the focus bracket is movably connected to the stator via a sliding shaft. In this way, due to the large friction coefficient of the sliding shaft, the focus bracket can still achieve self-locking through the friction between itself and the sliding shaft after the lens motor is powered off, and no external power supply is required to continuously power the lens motor, which is beneficial to saving power and improving the battery life of electronic equipment. At the same time, when the focus bracket moves, it is less likely to deflect, which is beneficial to ensure the focusing effect of the lens motor and improve the imaging quality of the camera module.

[0020] In one possible implementation, the focus drive mechanism includes a focus coil and a focus magnetic part. The focus coil is fixed on a circuit board and electrically connected to the circuit board. The focus magnetic part is fixed on a focus bracket, and the focus coil and the focus magnetic part are arranged opposite to each other. The focus coil is electrically connected to a drive chip, and the drive chip is also used to control the focus coil, so as to drive the focus bracket to drive the anti-shake bracket to move relative to the stator in a first direction through the cooperation between the focus coil and the focus magnetic part. In this way, the drive chip can control the focus coil, and drive the focus bracket to move through the driving force generated by the cooperation between the focus coil and the focus magnetic part, so as to realize the focusing function of the lens motor.

[0021] In a possible implementation, the lens motor further includes a first magnetic sheet, the first magnetic sheet is fixed to the circuit board, the focus coil is located between the first magnetic sheet and the focus magnetic part, and the focus bracket squeezes the slide shaft under the action of the first magnetic sheet and the focus magnetic part. In this way, the first magnetic sheet can absorb the focus magnetic part, so that the focus bracket can squeeze the slide shaft, so that the focus bracket and the slide shaft can be in close contact, thereby effectively preventing the focus bracket from tipping over when it moves relative to the stator.

[0022] In a possible implementation, the lens motor further includes a first sensor, the first sensor is fixed to the circuit board and electrically connected to the circuit board, the driver chip is electrically connected to the first sensor, the first sensor is used to detect the position of the focus bracket, and the driver chip is also used to obtain information from the first sensor. In this way, the driver chip can obtain the position information of the focus bracket in a timely manner, which is conducive to improving the efficiency of the driver chip in obtaining position information and improving the response speed of the lens motor.

[0023] In a possible implementation, the lens motor further includes a cover plate, the cover plate is connected to the focus bracket, and the cover plate is located on a side of the anti-shake bracket away from the focus bracket. In this way, it can effectively prevent the anti-shake bracket from falling out of the focus bracket when the electronic device is flipped or tilted, which is conducive to improving the structural reliability of the lens motor.

[0024] In a second aspect, a camera module is provided, which includes a lens, a prism, a photosensitive chip, and the above-mentioned lens motor, wherein the lens is mounted on an anti-shake bracket, the prism is located on the light-emitting side of the lens, and the photosensitive chip is located on the light-emitting side of the prism.

[0025] It is understandable that the driver chip of a traditional lens motor is usually arranged on a module circuit board outside the lens motor. This makes it impossible to burn relevant calibration data to the driver chip at the motor factory during the production of the camera module, and the driver chip needs to be calibrated at the module factory. The driver chip in the present application is built into the lens motor, so that during the production of the camera module, the relevant calibration data can be directly burned into the driver chip in the lens motor at the motor factory, saving the subsequent calibration process at the module factory and improving production efficiency. At the same time, when the characteristics of the lens motor vary due to factors such as reliability or module process, it is beneficial to compare the data of the lens motor after the characteristic variation.

[0026] In addition, compared to the lens motor that requires multiple driver chips to control the anti-shake drive mechanism and the focus drive mechanism respectively, the lens motor in this application controls the anti-shake drive mechanism and the focus drive mechanism at the same time through a driver chip. When one of the anti-shake drive mechanism and the focus drive mechanism needs to obtain the position information of the other, the driver chip can obtain the corresponding position information by performing corresponding algorithm compensation. In this way, the information exchange between the anti-shake drive mechanism and the focus drive mechanism is faster, and the driver chip does not need to perform additional data burning, which is conducive to improving the efficiency of the driver chip in obtaining position information and improving the response speed of the lens motor.

[0027] In addition, the lens motor of the present application is an integrated motor with both anti-shake and focus functions, and the driver chip is built into the lens motor. In this way, the driver chip inside the lens motor can simultaneously control the focus bracket to drive the anti-shake bracket to move relative to the stator along the first direction to achieve the focus function, and control the anti-shake bracket to move relative to the focus bracket along the second direction and the third direction to achieve the anti-shake function. Compared with the split lens motor in which the focus bracket and the anti-shake bracket are separately arranged, the lens motor of the present application is smaller in size, which is conducive to the miniaturization of the lens motor and is conducive to saving the internal space of the electronic equipment.

[0028] In one possible implementation, the prism includes a first surface, a first inclined surface, a second surface, and a second inclined surface connected in sequence, the lens and the photosensitive chip are both located on the side of the first surface facing away from the second surface, the first surface includes a first area and a second area, the lens and the first area are arranged opposite to each other, and the photosensitive chip and the second area are arranged opposite to each other. After the ambient light passes through the lens, it enters the prism from the first area of ​​the first surface, and after multiple reflections inside the prism, it is emitted from the second area of ​​the first surface, and the photosensitive chip collects the ambient light passing through the prism. In this way, compared with a camera module in which the lens and the photosensitive chip are located on different sides of the prism, the camera module of the present application in which the lens and the photosensitive chip are located on the same side of the prism is conducive to reducing the overall height of the camera module and realizing a thin setting of the camera module.

[0029] In a third aspect, an electronic device is provided. The electronic device includes a device housing and the above-mentioned camera module, and the camera module is arranged in the device housing. It can be understood that the lens motor in the electronic device of the present application is an integrated motor with both anti-shake function and focus function, and the driving chip is built into the lens motor. In this way, the driving chip inside the lens motor can simultaneously control the focus bracket to drive the anti-shake bracket to move relative to the stator along the first direction to realize the focus function, and control the anti-shake bracket to move relative to the focus bracket along the second direction and the third direction to realize the anti-shake function. Compared with the split lens motor in which the focus bracket and the anti-shake bracket are separately arranged, the lens motor of the present application is smaller in size, which is conducive to realizing the miniaturization of the lens motor and saving the internal space of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0031] Figure 1 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0032] Figure 2a yes Figure 1 A partial cross-sectional view of the electronic device shown in one embodiment along line AA;

[0033] Figure 2b yes Figure 1 A schematic structural diagram of an implementation scheme of a camera module shown;

[0034] Figure 3 yes Figure 2a An exploded schematic diagram of the camera module shown;

[0035] Figure 4 yes Figure 3 The structure schematic diagram of the lens motor in one embodiment is shown;

[0036] Figure 5 yes Figure 4 An exploded schematic diagram of the lens motor shown;

[0037] Figure 6 yes Figure 5 The structural schematic diagram of the base and the sliding shaft shown;

[0038] Figure 7 yes Figure 5 A partial structural schematic diagram of the lens motor shown;

[0039] Figure 8 yes Figure 7 A schematic diagram of the structure shown at another angle;

[0040] Fig. 9 yes Figure 5 A partial structural schematic diagram of a lens motor shown;

[0041] Fig.10 yes Fig. 9 A schematic diagram of the structure shown at another angle;

[0042] Fig.11 yes Figure 5 A partial structural schematic diagram of a lens motor shown;

[0043] Fig.12 yes Figure 4 A partial cross-sectional view of an embodiment of the lens motor shown along line BB;

[0044] Fig.13 yes Figure 5 An exploded schematic diagram of the mover shown;

[0045] Fig.14 yes Fig.13 A schematic structural diagram of a base of a mover shown;

[0046] Fig.15 yes Fig.14 A schematic diagram of the structure shown at another angle;

[0047] Fig.16 yes Figure 4 A partial cross-sectional view of an embodiment of the lens motor shown on line CC;

[0048] Fig.17 yes Figure 4 A partial cross-sectional view of an embodiment of the lens motor shown on line DD;

[0049] Fig.18 yes Fig.13 The schematic diagram of the structure of the first bracket shown in another angle;

[0050] Fig.19 yes Fig.13 A partial structural schematic diagram of the mover shown;

[0051] Fig. 20 yes Fig.19 A schematic diagram of the structure shown at another angle;

[0052] Fig.21 yes Fig.13 A partial structural schematic diagram of the mover shown;

[0053] Fig. 22 yes Figure 4 A partial cross-sectional view of an embodiment of the lens motor shown on line EE;

[0054] Fig.23 yes Figure 4 A partial cross-sectional view of an embodiment of the lens motor shown on line CC;

[0055] Fig.24 yes Fig.13 A schematic structural diagram of the second bracket of the mover shown in another viewing angle;

[0056] Fig.25 yes Fig.13 A partial structural schematic diagram of the mover shown;

[0057] Fig.26 yes Fig.13 A partial structural schematic diagram of the mover shown;

[0058] Fig. 27 yes Figure 4 A partial cross-sectional view of an embodiment of the lens motor shown on line EE;

[0059] Fig.28 yes Figure 4 A partial cross-sectional view of an embodiment of the structure shown on line DD;

[0060] Fig.29 yes Fig.13 The schematic diagram of the structure of the mover shown;

[0061] Fig.30 yes Figure 5 A partial structural schematic diagram of a lens motor shown;

[0062] Fig.31 yes Figure 4 A cross-sectional view of an embodiment of the lens motor shown on line EE;

[0063] Fig.32 yes Figure 4A cross-sectional view of an embodiment of the lens motor shown on line FF;

[0064] Fig.33 yes Figure 4 A cross-sectional view of an embodiment of the lens motor shown on line DD;

[0065] Fig.34 yes Figure 3 The structural schematic diagram of the lens motor and the lens shown;

[0066] Fig.35 yes Figure 2b A partial cross-sectional view of an embodiment of the camera module shown on line GG;

[0067] Fig.36 yes Figure 2b A cross-sectional view of the camera module shown in one embodiment along line GG;

[0068] Fig.37 yes Fig.36 A partial cross-sectional schematic diagram of another embodiment of the camera module shown;

[0069] Fig.38 yes Fig.36 A partial cross-sectional schematic diagram of another embodiment of the camera module shown. DETAILED DESCRIPTION

[0070] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0071] 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. Among them, "fixed connection" means that the relative position relationship after connection remains unchanged. "Rotational connection" means that the two are connected to each other and can rotate relative to each other after connection. "Sliding connection" means that the two are connected to each other and can slide relative to each other after connection. 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.

[0072] In the embodiments of the present application, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features.

[0073] It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0074] The embodiment of the present application provides a terminal, which includes but is not limited to electronic devices with display functions such as mobile phones, tablet computers, multimedia players, e-book readers, laptop computers, vehicle-mounted devices or wearable devices. The present application takes the mobile phone as an example for specific description.

[0075] Figure 1 It is a structural diagram of an electronic device 1000 provided in an embodiment of the present application. Figure 2a yes Figure 1 The electronic device 1000 is shown as a partial cross-sectional view of one embodiment along line AA.

[0076] like Figure 1 and Figure 2a As shown, the electronic device 1000 may be a device with a camera module, such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses or a VR helmet. Figure 1 The electronic device 1000 in the illustrated embodiment is described by taking a mobile phone as an example.

[0077] like Figure 1 As shown, the electronic device 1000 may include a camera module 100, a device housing 200, and a screen 300. The camera module 100 may be a rear camera module or a front camera module. Figure 1 The following figures and the related drawings only schematically illustrate some components of the electronic device 1000, and the actual shapes, sizes, positions and structures of these components are not limited to the following. Figure 1In addition, when the electronic device 1000 is a device of some other form, the electronic device 1000 may not include the screen 300 .

[0078] For ease of description, the width direction of the electronic device 1000 is defined as the X axis. The length direction of the electronic device 1000 is defined as the Y axis. The thickness direction of the electronic device 1000 is defined as the Z axis. It is understood that the coordinate system setting of the electronic device 1000 can be flexibly set according to specific actual needs.

[0079] In this embodiment, the device housing 200 may include a frame 201 and a back cover 202. The back cover 202 is fixed to the frame 201. Exemplarily, the back cover 202 may be fixedly connected to the frame 201 by adhesive. The back cover 202 may also be an integrally formed structure with the frame 201, that is, the back cover 202 and the frame 201 are an integral structure.

[0080] In addition, the screen 300 may be located on a side of the frame 201 away from the back cover 202. In this case, the screen and the back cover 202 are located on both sides of the frame 201. The screen 300, the frame 201 and the back cover 202 together enclose the interior of the electronic device 1000. The interior of the electronic device 1000 may be used to place components of the electronic device 1000, such as a battery, a receiver or a microphone. The screen 300 may be a flat screen or a curved screen.

[0081] For example, the camera module 100 may be located inside the electronic device 1000. The camera module 100 may be fixed to the side of the screen 300 facing the back cover 202. The back cover 202 may be provided with a light-transmitting hole 203. The shape of the light-transmitting hole 203 is not limited to the shape of the light-transmitting hole 203. Figure 1 The light-transmitting hole 203 connects the inside of the electronic device 1000 to the outside of the electronic device 1000. Light outside the electronic device 1000 can enter the inside of the electronic device 1000 through the light-transmitting hole 203. The camera module 100 can collect ambient light entering the inside of the electronic device 1000.

[0082] Exemplarily, the camera module 100 may be a common camera module (i.e., the optical axis direction of the camera module 100 is the thickness direction of the electronic device 1000). In some embodiments, the camera module 100 may also be a periscope camera module (i.e., the optical axis direction of the camera module 100 is the width direction of the electronic device 1000).

[0083] Figure 2b yes Figure 1 A structural schematic diagram of an implementation of a camera module 100 is shown. Figure 3 yes Figure 2a A schematic diagram of an exploded view of the camera module 100 is shown.

[0084] like Figure 2a and Figure 2b As shown, the camera module 100 may include a lens motor 1, a lens 2, a prism 4, a module base 5, a circuit module 6, and a module housing 7. The lens motor 1 and the lens 2 may constitute a lens assembly 400. The lens motor 1 may surround a mounting hole 3. The lens 2 may be mounted in the mounting hole 3. In other embodiments, the mounting method of the lens 2 and the lens motor 1 is not specifically limited.

[0085] It is understandable that the lens motor 1 can be used to achieve auto focus (AF) by controlling the movement of the lens 2 along the optical axis direction of the lens 2 (in this embodiment, the optical axis direction of the lens 2 is the Z-axis direction).

[0086] In addition, the lens motor 1 can also control the movement of the lens 2 along a plane perpendicular to the optical axis (in this embodiment, the plane perpendicular to the optical axis is the XY plane). In this way, when the camera module 100 collects ambient light, if the electronic device 1000 shakes in the XY plane due to external force, the movement of the lens 2 in the XY plane can be controlled by the lens motor 1 to offset the shaking stroke of the lens 2 in the XY plane, so as to avoid or reduce the position deviation of the lens 2 caused by the shaking. In other words, the camera module 100 of the present application can control the movement of the lens 2 in the XY plane through the lens motor 1, thereby realizing the optical image stabilization (OIS) of the camera module 100 and improving the imaging quality of the camera module 100.

[0087] The above specifically introduces the structures of the electronic device 1000 and the camera module 100 . The following will specifically introduce the lens motor 1 in the camera module 100 in conjunction with the relevant drawings.

[0088] Figure 4 yes Figure 3 The structure diagram of the lens motor 1 in one embodiment is shown. Figure 5 yes Figure 4 The exploded schematic diagram of the lens motor 1 is shown.

[0089] like Figure 4 and Figure 5As shown, the lens motor 1 may include a housing 10, a base 20, a circuit board 30, a first magnetic sheet 40, a mover 50, a driving chip 60, a coil 70, a position sensor 80 and a sliding shaft 90. The housing 10 and the base 20 may together constitute the stator 1b of the lens motor 1. In this embodiment, the number of sliding shafts 90 may be two. The two sliding shafts 90 may be a first sliding shaft 91 and a second sliding shaft 92, respectively. The shape and size of the first sliding shaft 91 and the second sliding shaft 92 may be the same. In other embodiments, the number of sliding shafts 90 is not specifically limited. The shape and size of each sliding shaft 90 may also be different.

[0090] It should be understood that in this embodiment, the width direction of the lens motor 1, that is, the width direction of the electronic device 1000, is the X-axis direction. The length direction of the lens motor 1, that is, the length direction of the electronic device 1000, is the Y-axis direction. The thickness direction of the lens motor 1, that is, the thickness direction of the electronic device 1000, is the Z-axis direction. Among them, the Z-axis direction is also the first direction. The X-axis direction is also the second direction. The Y-axis direction is also the third direction. In other embodiments, the coordinate system setting of the lens motor 1 can be flexibly set according to specific actual needs.

[0091] Figure 6 yes Figure 5 The schematic diagram of the structure of the base 20 and the sliding shaft 90 is shown.

[0092] like Figure 5 and Figure 6 As shown, the base 20 may be roughly in the shape of a cube. The base 20 may include a bottom 21 and a frame 22. The frame 22 may be fixed to the bottom 21 and enclose a receiving space 23. The receiving space 23 may be used to accommodate the mover 50, the sliding shaft 90, at least a portion of the lens 2, and at least a portion of the coil 70.

[0093] For example, the bottom 21 may be provided with a communication hole 212. The communication hole 212 may connect the outside of the lens motor 1 with the accommodating space 23. In other embodiments, the shape and size of the communication hole 212 are not specifically limited.

[0094] Exemplarily, the frame portion 22 may include a first side portion 222, a second side portion 223, a third side portion 224, and a fourth side portion 221 connected in sequence. Among them, the first side portion 222 may be provided with a first avoidance hole 222a. The second side portion 223 may be provided with a second avoidance hole 223a. The third side portion 224 may be provided with a third avoidance hole 224a. The fourth side portion 221 may be provided with a fourth avoidance hole 221a. The first avoidance hole 222a, the second avoidance hole 223a, the third avoidance hole 224a, and the fourth avoidance hole 221a may all penetrate the inner circumference and the outer circumference of the frame portion 22, and communicate with the accommodating space 23.

[0095] Exemplarily, the base 20 may be provided with a first avoidance groove 211. The first avoidance groove 211 may penetrate the bottom 21 and the frame 22, and communicate with the communication hole 212 of the bottom 21. At this time, the inner side surface of the bottom 21 may face the first avoidance groove 211.

[0096] Exemplarily, the fourth side portion 221 may be provided with a first fixing groove 2211 and a second fixing groove 2212. The openings of the first fixing groove 2211 and the second fixing groove 2212 may be formed on the surface of the fourth side portion 221 facing the accommodating space 23. The first fixing groove 2211 and the second fixing groove 2212 may be respectively located on both sides of the fourth avoidance hole 221a. The shapes of the first fixing groove 2211 and the second fixing groove 2212 may be adapted to the shape of the sliding shaft 90. The first sliding shaft 91 may be fixed to the first fixing groove 2211 and connected to the base 20. The second sliding shaft 92 may be fixed to the second fixing groove 2212 and connected to the base 20.

[0097] Figure 7 yes Figure 5 A partial structural schematic diagram of the lens motor 1 is shown. Figure 8 yes Figure 7 The structure shown is a schematic diagram of the structure at another angle.

[0098] like Figure 7 and Figure 8 As shown, the coil 70 and the position sensor 80 can be fixed to the circuit board 30 by welding or the like. The coil 70 and the position sensor 80 can be electrically connected to the circuit board 30. Among them, the circuit board 30 can be a flexible circuit board 30. The position sensor 80 can be a Hall sensor. In other embodiments, the circuit board 30 can also be a hard circuit board 30 or a hard-soft circuit board 30. The position sensor 80 can also be other types of sensors.

[0099] Exemplarily, the circuit board 30 may include a first sub-board 31, a second sub-board 32, a third sub-board 33, and a fourth sub-board 34 connected in sequence. The first sub-board 31 is arranged opposite to the third sub-board 33. The second sub-board 32 is arranged opposite to the fourth sub-board 34. The first sub-board 31, the second sub-board 32, the third sub-board 33, and the fourth sub-board 34 may be roughly surrounded by a square. It should be understood that in order to facilitate the description of the specific structure and shape of the circuit board 30, the present embodiment divides the circuit board 30 into four parts for description, but does not affect the circuit board 30 as an integrated structure. In other embodiments, the first sub-board 31, the second sub-board 32, the third sub-board 33, and the fourth sub-board 34 may also be connected in sequence by welding.

[0100] Exemplarily, the coil 70 may include a focus coil 71 and an anti-shake coil 72. Among them, the anti-shake coil 72 may include a first coil 721 and a second coil 722. The first coil 721 may include a first sub-coil 7211 and a second sub-coil 7212. Exemplarily, the focus coil 71 may be fixed to the side of the first sub-board 31 facing the third sub-board 33. The first sub-coil 7211 may be fixed to the side of the second sub-board 32 facing the fourth sub-board 34. The second coil 722 may be fixed to the side of the third sub-board 33 facing the first sub-board 31. The second sub-coil 7212 may be fixed to the side of the fourth sub-board 34 facing the second sub-board 32.

[0101] Exemplarily, the position sensor 80 may include a first sensor 81, a second sensor 82, and a third sensor 83. Among them, the first sensor 81 may be fixed to the first sub-board 31. The second sensor 82 may be fixed to the second sub-board 32. The third sensor 83 may be fixed to the third sub-board 33. Exemplarily, the first sensor 81 may be located in the coil hole of the focus coil 71. The second sensor 82 may be located in the coil hole of the first sub-coil 7211. The third sensor 83 may be located in the coil hole of the second coil 722.

[0102] In other embodiments, the first coil 721 may not include the second sub-coil 7212 .

[0103] like Figure 5 and Figure 7 As shown, the driving chip 60 can be fixed to the second sub-board 32 by welding. At this time, the driving chip 60 is electrically connected to the second sub-board 32. The driving chip 60 can be electrically connected to the coil 70 (i.e., the focus coil 71, the first sub-coil 7211, the second coil 722, and the second sub-coil 7212) and the position sensor 80 (i.e., the first sensor 81, the second sensor 82, and the third sensor 83) at the same time.

[0104] For example, the driver chip 60 can be fixed on the side of the second sub-board 32 facing the fourth sub-board 34. At this time, the driver chip 60 and the coil 70 can be located in the area surrounded by the circuit board 30. The driver chip 60 and the coil 70 can be located on the same side of the circuit board 30. For example, the driver chip 60 can be arranged side by side with the first sub-coil 7211. In other embodiments, the driver chip 60 can also be fixed to other positions of the circuit board 30.

[0105] Fig. 9 yes Figure 5 A partial structural schematic diagram of the lens motor 1 is shown. Fig.10 yes Fig. 9 The structure shown is a schematic diagram of the structure at another angle.

[0106] like Figure 5, Fig. 9 and Fig.10 As shown, the circuit board 30 can be arranged around the frame 22 of the base 20. Exemplarily, the circuit board 30 can be arranged around the outer side of the frame 22. Among them, the first sub-board 31, the second sub-board 32, the third sub-board 33 and the fourth sub-board 34 can be fixedly connected to the fourth side 221, the first side 222, the second side 223 and the third side 224 in sequence. At this time, at least a portion of the focus coil 71 can be located in the fourth avoidance hole 221a. At least a portion of the first sub-coil 7211 and at least a portion of the driving chip 60 can be located in the first avoidance hole 222a. At least a portion of the second coil 722 can be located in the second avoidance hole 223a. At least a portion of the second sub-coil 7212 can be located in the third avoidance hole 224a. In this way, by fixing the circuit board 30 to the outer peripheral side of the base 20, and placing each coil 70 (i.e., the focusing coil 71, the first sub-coil 7211, the second coil 722 and the second sub-coil 7212) in each avoidance hole (i.e., the fourth avoidance hole 221a, the first avoidance hole 222a, the second avoidance hole 223a and the third avoidance hole 224a), the thickness of the base 20 can be effectively utilized to place the coil 70, thereby improving the space utilization inside the lens motor 1, which is conducive to the miniaturization of the lens motor 1.

[0107] For example, the first magnetic sheet 40 may be fixed to the side of the first sub-plate 31 away from the accommodating space 23. The material of the first magnetic sheet 40 may be a magnetic material.

[0108] In some embodiments, the frame 22 may further be provided with a groove (not shown), and the circuit board 30 may be installed in the groove, thereby making the structure more compact.

[0109] In some embodiments, the lens motor 1 may further include a sub-magnetic sheet 41 . The sub-magnetic sheet 41 may be fixed to the first sub-plate 31 and located in the coil hole of the focus coil 71 .

[0110] Fig.11 yes Figure 5 A partial structural schematic diagram of the lens motor 1 is shown. Fig.12 yes Figure 4 The lens motor 1 is shown in a partial cross-sectional view of an embodiment along line BB.

[0111] like Fig.11 and Fig.12As shown, the housing 10 may be roughly in the shape of a cube. The housing 10 may be fixed on the bottom 21. The housing 10 is arranged around the frame 22 of the base 20. At this time, at least part of the circuit board 30 and the first magnetic sheet 40 may be located between the housing 10 and the frame 22. Exemplarily, the housing 10 may be provided with a lens through hole 12. The lens through hole 12 may be connected to the accommodating space 23 and may be arranged opposite to the connecting hole 212 of the base 20. The shape of the lens through hole 12 may be adapted to that of the lens 2 (e.g., Figure 3 As shown). For example, the lens 2 may at least partially pass through the lens through hole 12. It should be understood that Fig.12 The bottom 21 and the frame 22 of the base 20 are indicated by dotted lines.

[0112] The above specifically introduces the partial structure of the lens motor 1 , and the following specifically introduces the mover 50 of the lens motor 1 in conjunction with the relevant drawings.

[0113] Fig.13 yes Figure 5 An exploded schematic diagram of the mover 50 is shown.

[0114] like Fig.13 As shown, the mover 50 may include a focus mover 51 , an anti-shake mover 52 and a cover plate 53 .

[0115] Exemplarily, the focus mover 51 may include a focus bracket 511, a focus magnetic member 512, a focus magnetic conductive sheet 513, and a plurality of second magnetic suction sheets 514. The anti-shake mover 52 may include a first bracket 521, a second bracket 522, an anti-shake magnetic member 52c, a first magnetic conductive sheet 526, a second magnetic conductive sheet 527, a third magnetic conductive sheet 528, and a plurality of balls 529. Among them, the first bracket 521 and the second bracket 522 may together constitute an anti-shake bracket 52a of the anti-shake mover 52. The anti-shake magnetic member 52c may include a first magnetic member 523 and a second magnetic member 524. Exemplarily, the first magnetic member 523 may include a first sub-magnetic member 5231 and a second sub-magnetic member 5232. The focus mover 51 may be used to drive the lens 2 to move along the Z-axis direction to achieve optical focus. The anti-shake mover 52 may be used to drive the lens 2 to move on the XY plane to achieve optical image stabilization.

[0116] It should be noted that, in this embodiment, the number of the balls 529 is six. Each ball 529 has the same shape and size. Therefore, each ball 529 can be labeled with the same reference numeral. Fig.13 Only one of the balls 529 is numbered.

[0117] Fig.14 yes Fig.13 A schematic structural diagram of a focusing bracket 511 of a mover 50 is shown. Fig.15 yes Fig.14 The structure shown is a schematic diagram of the structure at another angle.

[0118] like Fig.14 and Fig.15 As shown, the focus bracket 511 may be roughly in the shape of a cube. The focus bracket 511 may include a bottom 511b and a frame 511c. The frame 511c may connect the outer periphery of the bottom 511b. The frame 511c and the bottom 511b may enclose a receiving space 511a. The bottom 511b may be provided with a first through hole 511d. The first through hole 511d may communicate with the receiving space 511a.

[0119] Exemplarily, the bottom 511b may include a first portion 5111 and a second portion 5112. The second portion 5112 may be connected to the upper surface of the first portion 5111, and enclose a first through hole 511d with the first portion 5111. At this time, the second portion 5112 may be raised relative to the first portion 5111 along the positive direction of the Z axis, that is, the second portion 5112 may be stacked on the first portion 5111. The inner side surface of the first portion 5111 may face the bottom space 5112a of the second portion 5112. Exemplarily, the focus bracket 511 may be provided with a second avoidance groove 50a. The second avoidance groove 50a may connect the bottom space 5112a of the second portion 5112 and the first through hole 511d.

[0120] Fig.16 yes Figure 4 The lens motor 1 is shown in a partial cross-sectional view of an embodiment along line CC. Fig.17 yes Figure 4 The lens motor 1 is shown in a partial cross-sectional view of an embodiment along line DD.

[0121] like Fig.13 , Fig.16 and Fig.17 As shown, the frame portion 511c may include a first side portion 5113, a second side portion 5114, a third side portion 5115, and a fourth side portion 5116 connected in sequence. Among them, the second side portion 5114 may be provided with a first avoidance space 5117. The third side portion 5115 may be provided with a second avoidance space 5118. The fourth side portion 5116 may be provided with a third avoidance space 5119. The first avoidance space 5117, the second avoidance space 5118, and the third avoidance space 5119 may all be connected to the receiving space 511a. Exemplarily, the second avoidance groove 50a may pass through the fourth side portion 5116 of the frame portion 511c, and the portion of the first portion 5111 located at the fourth side portion 5116.

[0122] Exemplarily, the first side portion 5113 may be provided with a first slide groove 5113a and a second slide groove 5113b. The openings of the first slide groove 5113a and the second slide groove 5113b may be formed on the surface of the first side portion 5113 facing away from the receiving space 511a. The first slide groove 5113a and the second slide groove 5113b may be arranged at intervals. The first side portion 5113 may also be provided with a base mounting groove 5113c. The base mounting groove 5113c may be located between the first slide groove 5113a and the second slide groove 5113b. The focusing magnetic conductive sheet 513 may be fixed to the base mounting groove 5113c. The focusing magnetic member 512 may be fixed to the side of the focusing magnetic conductive sheet 513 away from the receiving space 511a.

[0123] like Fig.16 and Fig.17 As shown, the first part 5111 may also be provided with a plurality of base guide grooves 54. The openings of the plurality of base guide grooves 54 may be formed on the surface of the first part 5111 facing the receiving space 511a. In this embodiment, the number of the base guide grooves 54 may be three. The plurality of base guide grooves 54 may be a first guide groove 541, a second guide groove 542, and a third guide groove 543, respectively. Exemplarily, the first guide groove 541 may be located at the connection between the first side portion 5111 and the second side portion 5114. The second guide groove 542 may be located at the connection between the second side portion 5114 and the third side portion 5115. The third guide groove 543 may be located at the connection between the third side portion 5115 and the fourth side portion 5116. Among them, the guiding directions of the first guide groove 541, the second guide groove 542, and the third guide groove 543 may all be parallel to the X-axis direction. At this time, the first guide groove 541, the second guide groove 542, and the third guide groove 543 may be surrounded in an "L" shape.

[0124] Exemplarily, the focus bracket 511 may further include a stopper 5110. The stopper 5110 may be fixedly connected to the first portion 5111. The stopper 5110 may be located at the connection between the first portion 5111 and the first side portion 5113, and may be spaced apart from the first guide groove 541.

[0125] Exemplarily, the bottom 511b of the focus bracket 511 may also be provided with a first limiting groove 5112b and a second limiting groove 5112c. The opening of the first limiting groove 5112b and the opening of the second limiting groove 5112c may be formed on the surface of the second portion 5112 facing away from the first side portion 5113. The first limiting groove 5112b and the second limiting groove 5112c may be arranged at intervals. The first limiting groove 5112b may expose the second guide groove 542. The second limiting groove 5112c may expose the third guide groove 543.

[0126] like Fig.13 , Fig.16 and Fig.17 As shown, multiple second magnetic sheets 514 can be located inside the first part 5111, that is, multiple second magnetic sheets 514 can be built into the first part 5111. The material of the second magnetic sheet 514 can be a magnetic material. In this embodiment, the number of second magnetic sheets 514 can be two. One of the second magnetic sheets 514 can be located between the first guide groove 541 and the second guide groove 542. Another second magnetic sheet 514 can be located between the second guide groove 542 and the third guide groove 543.

[0127] Fig.18 yes Fig.13 The structure schematic diagram of the first bracket 521 shown in another angle. Fig.19 yes Fig.13 A partial structural schematic diagram of the mover 50 is shown. Fig. 20 yes Fig.19 The structure shown is a schematic diagram of the structure at another angle.

[0128] like Fig.18 and Fig.19 As shown, the first bracket 521 may include a first branch 521a and a second branch 521b. The first branch 521a is connected to the second branch 521b. The first branch 521a and the second branch 521b may be arranged at an angle. The angle between the first branch 521a and the second branch 521b may be less than 180°. Exemplarily, the angle between the first branch 521a and the second branch 521b may be 90°. At this time, the first bracket 521 may be roughly in an "L"-shaped structure.

[0129] Exemplarily, the first branch 521a may include a first support portion 5211, a first connection portion 5212, and a second support portion 5213 connected in sequence. The second branch 521b may include a second connection portion 5214 and a third support portion 5215 connected in sequence. One end of the second connection portion 5214 away from the third support portion 5215 may be connected to the second support portion 5213. In other words, the first connection portion 5212 is connected between the first support portion 5211 and the second support portion 5213. The second connection portion 5214 is connected between the second support portion 5213 and the third support portion 5215.

[0130] In one embodiment, the first connection portion 5212 and the second connection portion 5214 may be arranged at an angle. For example, the first connection portion 5212 and the second connection portion 5214 may be perpendicular to each other. At this time, the first support portion 5211, the first connection portion 5212, the second support portion 5213, the second connection portion 5214 and the third support portion 5215 may form an "L"-shaped structure.

[0131] Exemplarily, the first support portion 5211 may have a first end surface 5211a and a second end surface 5211b disposed in opposite directions. The first support portion 5211 may be provided with a first guide groove 5211c and a second guide groove 5211d. The opening of the first guide groove 5211c may be formed on the first end surface 5211a and the surface of the first support portion 5211 facing the second support portion 5213. The opening of the second guide groove 5211d may be formed on the second end surface 5211b and the surface of the first support portion 5211 facing away from the third support portion 5215. The guiding direction of the first guide groove 5211c may be parallel to the Y axis. The guiding direction of the second guide groove 5211d may be parallel to the X axis.

[0132] Exemplarily, the second support portion 5213 may be provided with a third guide groove 5213a and a fourth guide groove 5213b. The third support portion 5215 may be provided with a fifth guide groove 5215a and a sixth guide groove 5215b. It should be understood that the second support portion 5213 and the third support portion 5215 have substantially the same structure as the first support portion 5211, and the same parts are not repeated. Among them, the guiding directions of the third guide groove 5213a and the fifth guide groove 5215a may be parallel to the Y axis. The guiding directions of the fourth guide groove 5213b and the sixth guide groove 5215b may be parallel to the X axis direction. Exemplarily, the first guide groove 5211c, the third guide groove 5213a and the fifth guide groove 5215a may all be located on the same side of the first connecting portion 5212 and the second connecting portion 5214. The second guide groove 5211d, the fourth guide groove 5213b and the sixth guide groove 5215b may all be located at the other side of the first connection portion 5212 and the second connection portion 5214. In other embodiments, the positions of the first guide groove 5211c and the second guide groove 5211d may be swapped.

[0133] like Fig.19 and Fig. 20 As shown, in this embodiment, the number of the balls 529 may be six. The balls 529 may be disposed one by one in the first guide groove 5211c, the second guide groove 5211d, the third guide groove 5213a, the fourth guide groove 5213b, the fifth guide groove 5215a and the sixth guide groove 5215b.

[0134] Exemplarily, the first guide groove 5211c, the third guide groove 5213a, the fourth guide groove 5213b and the sixth guide groove 5215b can be a "V"-shaped groove, that is, the cross-sectional shape of the first guide groove 5211c, the third guide groove 5213a, the fourth guide groove 5213b and the sixth guide groove 5215b is a "V"-shaped. At this time, a tight fit can be achieved between the ball 529 and the first guide groove 5211c, the third guide groove 5213a, the fourth guide groove 5213b and the sixth guide groove 5215b. The second guide groove 5211d and the fifth guide groove 5215a can be a "U"-shaped groove, that is, the cross-sectional shape of the second guide groove 5211d and the fifth guide groove 5215a is a "U"-shaped. At this time, a loose fit can be achieved between the ball 529 and the second guide groove 5211d and the fifth guide groove 5215a.

[0135] Fig.21 yes Fig.13 A partial structural schematic diagram of the mover 50 is shown. Fig. 22 yes Figure 4 The lens motor 1 is shown in a partial cross-sectional view of an embodiment along line EE. Fig.23 yes Figure 4 The lens motor 1 is shown in a partial cross-sectional view of an embodiment along line CC.

[0136] like Figure 21 to Figure 23 As shown, the first bracket 521 can be slidably connected to the first part 5111 of the focus bracket 511 through the ball 529. At this time, a part of the second part 5112 of the focus bracket 511 can be arranged opposite to the first branch 521a of the first bracket 521. Another part of the second part 5112 can be arranged opposite to the second branch 521b.

[0137] Exemplarily, the opening of the second guide groove 5211d of the first bracket 521 and the opening of the first guide groove 541 of the focus bracket 511 can be arranged opposite to each other, and together form a second ball rolling groove 552. The opening of the fourth guide groove 5213b of the first bracket 521 and the opening of the second guide groove 542 of the focus bracket 511 can be arranged opposite to each other, and together form a fourth ball rolling groove 554. The opening of the sixth guide groove 5215b of the first bracket 521 and the opening of the third guide groove 543 of the focus bracket 511 can be arranged opposite to each other, and together form a sixth ball rolling groove 556.

[0138] The guiding directions of the second ball groove 552, the fourth ball groove 554 and the sixth ball groove 556 can be parallel to the X-axis direction. The ball 529 between the first bracket 521 and the focusing bracket 511 can move along the X-axis direction. In other words, the first bracket 521 can move relative to the focusing bracket 511 along the X-axis direction.

[0139] In some embodiments, the bottom 511b may also not include the second portion 5112. The first bracket 521 may also include a third connecting portion (not shown) and a fourth supporting portion (not shown). The third connecting portion may be connected to the third supporting portion 5215 and parallel to the first connecting portion 5212. The fourth supporting portion may be connected to an end of the third connecting portion away from the third supporting portion 5215. The fourth supporting portion may also be provided with a seventh guide groove and an eighth guide groove. The guiding direction of the seventh guide groove may be parallel to the Y axis. The guiding direction of the eighth guide groove may be parallel to the X axis.

[0140] Fig.24 yes Fig.13 The structure diagram of the second bracket 522 of the mover 50 shown in another viewing angle.

[0141] like Fig.13 and Fig.24 As shown, the second bracket 522 may be roughly in the shape of a cube. The second bracket 522 may include a first surface 5221 and a second surface 5222 disposed in back-to-back relation, and a peripheral side surface 5223 that simultaneously connects the outer periphery of the first surface 5221 and the second surface 5222. The second bracket 522 may be provided with a second through hole 5224. The second through hole 5224 may sequentially penetrate the first surface 5221 and the second surface 5222. The second through hole 5224 may constitute at least a portion of the mounting hole 3 of the lens motor 1. For example, the lens 2 (see Figure 3 ) can be installed on the second bracket 522 through the second through hole 5224.

[0142] Exemplarily, the peripheral side surface 5223 of the second bracket 522 may include a first side surface 5223a, a second side surface 5223b, a third side surface 5223c, and a fourth side surface 5223d. The second bracket 522 may be provided with a plurality of receiving grooves 5225. The plurality of receiving grooves 5225 may all be connected to the second surface 5222 and the peripheral side surface 5223 of the second bracket 522. In this embodiment, the number of the receiving grooves 5225 may be three. The plurality of receiving grooves 5225 may be a first receiving groove 5225a, a second receiving groove 5225b, and a third receiving groove 5225c, respectively.

[0143] For example, the first receiving groove 5225a can communicate with the first side surface 5223a, the second side surface 5223b and the second surface 5222 of the second bracket 522. The second receiving groove 5225b can communicate with the second side surface 5223b, the third side surface 5223c and the second surface 5222 of the second bracket 522. The third receiving groove 5225c can communicate with the third side surface 5223c, the fourth side surface 5223d and the second surface 5222 of the second bracket 522.

[0144] Exemplarily, the second bracket 522 may also be provided with a plurality of guide grooves 5226. The plurality of guide grooves 5226 may all be connected to the peripheral side surface 5223 and the receiving groove 5225 of the second bracket 522. In this embodiment, the number of guide grooves 5226 of the second bracket 522 may be three. The plurality of guide grooves 5226 may be respectively a first guide groove 5226a, a second guide groove 5226b, and a third guide groove 5226c. Among them, the first guide groove 5226a may be connected to the first receiving groove 5225a and the first side surface 5223a. The second guide groove 5226b may be connected to the second receiving groove 5225b and the third side surface 5223c. The third guide groove 5226c may be connected to the third receiving groove 5225c and the third side surface 5223c. At this time, the guide direction of the plurality of guide grooves 5226 (i.e., the first guide groove 5226a, the second guide groove 5226b, and the third guide groove 5226c) of the second bracket 522 may be parallel to the Y-axis direction.

[0145] In some embodiments, the second bracket 522 may further be provided with a fourth receiving groove (not shown). The fourth receiving groove may connect the first side surface 5223a, the fourth side surface 5223d and the second surface 5222 of the second bracket 522. The second bracket 522 may further be provided with a fourth guide groove (not shown). The fourth guide groove may connect the fourth receiving groove and the first side surface 5223a. The guide direction of the fourth guide groove may be parallel to the Y-axis direction.

[0146] In other embodiments, the second bracket 522 may not be provided with the receiving groove 5225 . In this case, the guide groove 5226 of the second bracket 522 may communicate with the peripheral side surface 5223 and the second surface 5222 of the second bracket 522 .

[0147] Fig.25 yes Fig.13 A partial structural schematic diagram of the mover 50 is shown.

[0148] like Fig.24 and Fig.25 As shown, the second bracket 522 may be provided with a first mounting groove 5227, a second mounting groove 5228 and a third mounting groove 5229. The first mounting groove 5227 may be located between the first receiving groove 5225a and the second receiving groove 5225b. The second mounting groove 5228 may be located between the second receiving groove 5225b and the third receiving groove 5225c. The third mounting groove 5229 may be arranged side by side with the third receiving groove 5225c along the Y-axis direction.

[0149] Exemplarily, the opening of the first mounting groove 5227 can be formed at the second side surface 5223b and the second surface 5222. The opening of the second mounting groove 5228 can be formed at the third side surface 5223c and the second surface 5222. The opening of the third mounting groove 5229 can be formed at the fourth side surface 5223d and the second surface 5222. The first magnetic conductive sheet 526 can be fixed to the groove wall of the first mounting groove 5227 close to the second through hole 5224. The first sub-magnetic member 5231 can be fixed to the side of the first magnetic conductive sheet 526 away from the second through hole 5224. The connection relationship between the second mounting groove 5228 and the second magnetic member 524 and the second magnetic conductive sheet 527, and the connection relationship between the third mounting groove 5229 and the second sub-magnetic member 5232 and the third magnetic conductive sheet 528 are all substantially the same as the connection relationship between the first mounting groove 5227 and the first sub-magnetic member 5231 and the first magnetic conductive sheet 526. The same parts are not repeated.

[0150] Fig.26 yes Fig.13 A partial structural schematic diagram of the mover 50 is shown. Fig. 27 yes Figure 4 The lens motor 1 is shown in a partial cross-sectional view of an embodiment along line EE. Fig.28 yes Figure 4 The structure shown is a partial cross-sectional view of an embodiment along line DD.

[0151] like Figure 26 to Figure 28 As shown, a portion of the second bracket 522 can be movably connected to the first bracket 521 through the ball 529. Another portion of the second bracket 522 can be arranged opposite to the second portion 5112 of the focus bracket 511. At this time, both the first bracket 521 and the second bracket 522 can be located in the receiving space 511a of the focus bracket 511. That is, the anti-shake bracket 52a can be located on the inner side of the focus bracket 511.

[0152] Exemplarily, the first through hole 511d and the second through hole 5224 can be arranged opposite to each other. The first avoidance space 5117, the second avoidance space 5118 and the third avoidance space 5119 of the focusing bracket 511 can respectively expose the first sub-magnetic component 5231, the second magnetic component 524 and the second sub-magnetic component 5232 fixed to the second bracket 522. At this time, the second magnetic suction sheet 514 located between the first guide groove 541 and the second guide groove 542 of the focusing bracket 511 can absorb the first sub-magnetic component 5231. The second magnetic suction sheet 514 located between the second guide groove 542 and the third guide groove 543 of the focusing bracket 511 can absorb the second magnetic component 524.

[0153] Exemplarily, at least a portion of the first support portion 5211 may be received in the first receiving groove 5225a. At least a portion of the second support portion 5213 may be received in the second receiving groove 5225b. At least a portion of the third support portion 5215 may be received in the third receiving groove 5225c. At this time, the opening of the first guide groove 5226a of the second bracket 522 and the opening of the first guide groove 5211c of the first bracket 521 may be arranged opposite to each other, and together constitute the first ball rolling groove 551. The opening of the second guide groove 5226b of the second bracket 522 and the opening of the third guide groove 5213a of the first bracket 521 may be arranged opposite to each other, and together constitute the third ball rolling groove 553. The opening of the third guide groove 5226c of the second bracket 522 may be arranged opposite to the opening of the fifth guide groove 5215a of the first bracket 521, and together constitute the fifth ball rolling groove 555. At this time, the first ball groove 551 , the second ball groove 552 , the third ball groove 553 , the fourth ball groove 554 , the fifth ball groove 555 and the sixth ball groove 556 may together constitute the ball grooves of the mover 50 .

[0154] The guiding directions of the first ball groove 551, the third ball groove 553 and the fifth ball groove 555 can be parallel to the Y-axis direction. The ball 529 between the second bracket 522 and the first bracket 521 can move along the Y-axis direction. In other words, the second bracket 522 can move relative to the first bracket 521 along the Y-axis direction.

[0155] It can be understood that, in the present embodiment, the second bracket 522 can be movably connected to the first bracket 521 via the ball bearing 529. The second bracket 522 can move relative to the first bracket 521 along the Y-axis direction. When the second bracket 522 moves relative to the first bracket 521 along the positive direction of the Y-axis, the groove wall of the second receiving groove 5225b close to the first mounting groove 5227 can move in a direction close to the second support portion 5213 until the groove wall abuts against the second support portion 5213. When the second bracket 522 moves relative to the first bracket 521 along the negative direction of the Y-axis, the groove wall of the first receiving groove 5225a close to the first mounting groove 5227 can move in a direction close to the first support portion 5211 until the groove wall abuts against the first support portion 5211. In this way, through the cooperation between the groove wall of the first receiving groove 5225a and the first support part 5211, and the cooperation between the groove wall of the second receiving groove 5225b and the second support part 5213, the second bracket 522 can be prevented from being separated from the first bracket 521 during the movement, and the ball 529 between the second bracket 522 and the first bracket 521 can be prevented from falling out of the ball groove.

[0156] In other embodiments, only the first bracket 521 may be movably connected to the focus bracket 511 via the ball bearing 529 . Alternatively, only the second bracket 522 may be movably connected to the first bracket 521 via the ball bearing 529 .

[0157] Fig.29 yes Fig.13 The structural schematic diagram of the mover 50 is shown.

[0158] like Fig.26 and Fig.29 As shown, the cover plate 53 can cover the focus bracket 511. At this time, the cover plate 53 can be located on the side of the anti-shake bracket 52a away from the focus bracket 511. The anti-shake actuator 52 can be located between the focus bracket 511 and the cover plate 53. Exemplarily, the cover plate 53 can be provided with a plurality of buckling grooves 531. The focus bracket 511 can be provided with a plurality of buckling protrusions 5120. The plurality of buckling grooves 531 can be matched with the plurality of buckling protrusions 5120 in a one-to-one correspondence to fix the cover plate 53 to the focus bracket 511.

[0159] It can be understood that, in this embodiment, the first bracket 521 can be movably connected to the focus bracket 511 through the ball 529, and drive the second bracket 522 to move relative to the focus bracket 511 along the X-axis direction, so that the anti-shake element 52 can move relative to the focus mover 51 along the X-axis direction. When the first bracket 521 moves relative to the focus bracket 511 along the positive direction of the X-axis, the first support portion 5211 can move in the direction toward the limit block 5110 until the first support portion 5211 abuts against the limit block 5110. The third support portion 5215 can move in the direction toward the first limit groove 5112b until the third support portion 5215 abuts against the groove wall of the second limit groove 5112c. When the rolling bracket moves relative to the focus bracket 511 along the negative direction of the X-axis, the second support portion 5213 can move in the direction close to the second limit groove 5112c until the second support portion 5213 abuts against the groove wall of the first limit groove 5112b. In this way, through the cooperation between the first support part 5211 and the limit block 5110, the cooperation between the second support part 5213 and the first limit groove 5112b, and the cooperation between the third support part 5215 and the second limit groove 5112c, the ball 529 between the first bracket 521 and the focusing bracket 511 can be prevented from falling out of the ball groove.

[0160] In addition, in this embodiment, through the adsorption force between the first sub-magnetic part 5231 and one of the second magnetic sheets 514, and the adsorption force between the second magnetic part 524 and the other second magnetic sheet 514, the anti-shake sub 52 can squeeze the focus bracket 511 of the focus mover 51 along the Z-axis direction under the action of the adsorption force. At this time, the multiple balls 529 can fit closely to the groove walls of the multiple ball grooves one by one. In this way, the anti-shake sub 52 can be effectively prevented from tipping over when moving in the XY plane.

[0161] In addition, in this embodiment, the cover plate 53 is provided to cover the focus bracket 511, so that the focus actuator 51 can completely cover the anti-shake actuator 52. In this way, the anti-shake actuator 52 in the lens motor 1 can be effectively prevented from escaping from the focus actuator 51 when the electronic device 1000 is turned over and tilted.

[0162] Fig.30 yes Figure 5 A partial structural schematic diagram of the lens motor 1 is shown. Fig.31 yes Figure 4 The lens motor 1 is shown in a cross-sectional view of an embodiment along line EE. Fig.32 yes Figure 4 The lens motor 1 is shown in a cross-sectional view of an embodiment along line FF.

[0163] like Figure 30 to Figure 32 As shown, the mover 50 can be installed in the accommodating space 23 of the base 20. The first slide groove 5113a of the focus bracket 511 can cooperate with the first slide shaft 91. The second slide groove 5113b of the focus bracket 511 can cooperate with the second slide shaft 92. At this time, the focus bracket 511 can move relative to the base 20 along the axial direction of the first slide shaft 91. In this embodiment, the axial direction of the first slide shaft 91 is the Z-axis direction. In other words, the mover 50 can move relative to the base 20 along the Z-axis direction.

[0164] For example, the first magnetic sheet 40 can absorb the focusing magnetic part 512. At this time, the focusing bracket 511 can squeeze the first sliding shaft 91 and the second sliding shaft 92 along the Y-axis direction under the action of the adsorption force between the first magnetic sheet 40 and the focusing magnetic part 512, so that the first sliding shaft 91 can fit tightly in the first sliding groove 5113a, and the second sliding shaft 92 can fit tightly in the second sliding groove 5113b. In this way, the mover 50 can be effectively prevented from tipping over when it moves relative to the base 20 along the Z-axis direction.

[0165] In some embodiments, the sub-magnetic sheet 41 (see Figure 8 ) can also absorb the focusing magnetic part 512. In this way, the sub-magnetic sheet 41 can absorb the focusing magnetic part 512 together with the first magnetic sheet 40, thereby enhancing the adsorption force of the first magnetic sheet 40 on the focusing magnetic part 512. In addition, the sub-magnetic sheet 41 can also be used to balance the Z-direction interference force generated by the first magnetic sheet 40.

[0166] In other embodiments, the sliding shaft 90 may also be replaced by a plurality of balls.

[0167] like Figure 5 , Fig.31 and Fig.32As shown, the first sensor 81 can be used to detect the magnetic field strength when the focus magnetic member 512 is in different positions, so as to detect the position of the focus bracket 511. The second sensor 82 can be used to detect the magnetic field strength when the first sub-magnetic member 5231 is in different positions, so as to detect the position of the anti-shake bracket 52a in the X-axis direction. The third sensor 83 can be used to detect the magnetic field strength when the second magnetic member 524 is in different positions, so as to detect the position of the anti-shake bracket 52a in the Y-axis direction. The driving chip 60 can simultaneously obtain information from the first sensor 81, the second sensor 82, and the third sensor 83.

[0168] Fig.33 yes Figure 4 The lens motor 1 is shown in a cross-sectional view of an embodiment along line DD. Fig.34 yes Figure 3 The structure diagram of the lens motor 1 and the lens 2 is shown.

[0169] like Fig.31 and Fig.33 As shown, the first avoidance groove 211 of the base 20 can be connected to the second avoidance groove 50a of the focus bracket 511 and the bottom space 5112a of the second part 5112 ( Fig.14 The second avoidance groove 50a is shown from another angle. Fig.15 The bottom space 5112a is shown from another angle. At this time, the first avoidance groove 211, the second avoidance groove 50a and the bottom space 5112a of the second portion 5112 can together constitute the installation space 1a of the lens motor 1. The installation space 1a can be used to accommodate at least part of other lenses or prisms of the camera module 100. It should be understood that Fig.33 The first avoidance groove 211 , the second avoidance groove 50 a and the bottom space 5112 a of the second portion 5112 are indicated by dotted lines.

[0170] like Figure 32 to Figure 34 As shown, the focus coil 71 can be arranged opposite to the focus magnetic part 512. At this time, the focus coil 71 and the focus magnetic part 512 can jointly constitute the focus driving mechanism 51a of the focus mover 51. The first sub-coil 7211 can be arranged opposite to the first sub-magnetic part 5231. The second coil 722 can be arranged opposite to the second magnetic part 524. The second sub-coil 7212 can be arranged opposite to the second sub-magnetic part 5232. At this time, the first sub-coil 7211, the second coil 722, the second sub-coil 7212, the first sub-magnetic part 5231, the second magnetic part 524 and the second sub-magnetic part 5232 can jointly constitute the anti-shake driving mechanism 52b of the anti-shake mover 52.

[0171] When a signal is applied to the focus coil 71, the focus magnetic member 512 can cooperate with the focus coil 71, thereby driving the focus bracket 511 and driving the first bracket 521 and the second bracket 522 (i.e., the anti-shake bracket 52a) to move along the Z-axis direction relative to the base 20. In other words, the lens 2 can move along the Z-axis direction relative to the base 20 under the action of the mover 50 to achieve the autofocus function.

[0172] When a signal is applied to the first sub-coil 7211 and the second sub-coil 7212, the first sub-magnetic member 5231 can cooperate with the first sub-coil 7211, and the second sub-magnetic member 5232 can cooperate with the second sub-coil 7212, thereby driving the first bracket 521 and driving the second bracket 522 to move relative to the focus bracket 511 along the X-axis direction, that is, the second bracket 522 moves relative to the base 20 along the X-axis direction. When a signal is applied to the second coil 722, the second magnetic member 524 can cooperate with the second coil 722, thereby driving the second bracket 522 to move relative to the first bracket 521 along the Y-axis direction, that is, the second bracket 522 moves relative to the base 20 along the Y-axis direction. In other words, the lens 2 can move relative to the base 20 on the XY plane under the action of the mover 50 to achieve the optical image stabilization function.

[0173] The driving force generated by the focusing magnetic member 512 and the focusing coil 71 is the Z-direction driving force of the mover 50. The Z-direction driving force can be greater than the overall gravity of the mover 50 and the lens 2, the friction between the focusing bracket 511 and the first sliding shaft 91 and the second sliding shaft 92, the sub-magnetic suction sheet 41 (see Figure 8 ) and the focusing magnetic part 512, and the sum of the adsorption forces between the first magnetic attraction sheet 40 and the focusing magnetic part 512. The sum of the driving force generated by the cooperation of the first sub-magnetic part 5231 and the first sub-coil 7211, and the driving force generated by the cooperation of the second sub-magnetic part 5232 and the second sub-coil 7212 is the X-direction driving force of the mover 50. The X-direction driving force can be greater than the sum of the overall gravity of the anti-shake sub-52 and the lens 2, and the friction force between the first bracket 521 and the focusing bracket 511. The driving force generated by the cooperation of the second magnetic part 524 and the second coil 722 is the Y-direction driving force of the mover 50. The Y-direction driving force can be greater than the sum of the overall gravity of the second bracket 522 and the lens 2, and the friction force between the second bracket 522 and the first bracket 521.

[0174] It can be understood that the lens motor 1 in this embodiment includes a driving chip 60, an anti-shake actuator 52 and a focus actuator 51. Among them, the anti-shake bracket 52a can be located in the receiving space 511d of the focus bracket 511. The lens 2 can be installed on the anti-shake bracket 52a. The driving chip 60 can control the focus driving mechanism 51a so that the focus driving mechanism 51a drives the focus bracket 511 to drive the anti-shake bracket 52a to move relative to the base 20 along the Z-axis direction. The driving chip 60 can also control the anti-shake driving mechanism 52b so that the first bracket 521 drives the second bracket 522 to move relative to the base 20 along the X-axis direction, and the second bracket 522 moves relative to the base 20 along the Y-axis direction. In this way, when the lens 2 is installed in the second through hole 5224 of the second bracket 522, by controlling the second bracket 522 to move relative to the base 20 in the Z-axis direction and on the XY plane, the lens 2 can be driven to move relative to the base 20 in the Z-axis direction and on the XY plane.

[0175] In other words, the lens motor 1 of this embodiment is an integrated motor having both anti-shake function and focus function, and the driving chip 60 is built inside the lens motor 1. In this way, the driving chip inside the lens motor 1 can simultaneously control the second bracket 522 to move relative to the base 20 along the Z-axis direction to achieve the focus function, and control the second bracket 522 to move relative to the base 20 in the XY plane to achieve the anti-shake function. Compared with the split lens motor 1 in which the anti-shake actuator 52 and the focus actuator 51 are separately arranged, the lens motor 1 of this embodiment is smaller in size, which is conducive to reducing the stacking size of the camera module 100, simplifying the process flow, and also helping to save the internal space of the electronic device 1000. At the same time, compared with the lens motor 1 that requires multiple driving chips 60 to control the anti-shake actuator 52 and the focus actuator 51 respectively, the lens motor 1 in this embodiment uses a single driving chip 60 to simultaneously control the anti-shake driving mechanism 52b of the anti-shake actuator 52 and the focus driving mechanism 51a of the focus actuator 51. When one of the anti-shake element 52 and the focus element 51 needs to obtain the position information of the other, the driver chip 60 can obtain the corresponding position information by performing corresponding algorithm compensation. In this way, the information exchange between the anti-shake element 52 and the focus element 51 is faster, and the driver chip 60 does not need to perform additional data burning, which is conducive to improving the efficiency of the driver chip 60 in obtaining position information and improving the response speed of the lens motor 1.

[0176] In addition, the driver chip 60 of the traditional lens motor 1 is usually arranged on the circuit board outside the lens motor 1. This makes it impossible to burn the relevant calibration data (such as the correction data of the position sensor 80, the linearity calibration data, and the calibration data of the crosstalk of the focus actuator 51 to the anti-shake actuator 52, etc.) of the driver chip 60 in the motor factory during the production process of the camera module 100, and it is necessary to perform relevant calibration work on the driver chip 60 in the module factory. However, the driver chip 60 in this embodiment is built into the lens motor 1, so that during the production process of the camera module 100, the relevant calibration data can be directly burned into the driver chip 60 in the lens motor 1 at the motor factory, saving the subsequent calibration process in the module factory and improving production efficiency. At the same time, when the characteristics of the lens motor 1 vary due to factors such as reliability or module process, it is beneficial to compare the data of the lens motor 1 after the characteristic variation.

[0177] Secondly, the conventional focus mover 51 is usually connected to the base 20 by sliding through the ball 529, or connected to the base 20 by a spring. Among them, the ball-type focus mover 51 cannot achieve self-locking due to the small friction coefficient of the ball 529. At the same time, when the focus bracket 511 moves relative to the base 20 along the Z direction, it is easy to deflect, resulting in displacement in the XY plane, affecting the focus clarity. The spring-type focus mover 51 is easy to affect the video effect of the electronic device 1000 due to the poor anti-vibration effect of the spring. The focus bracket 511 in this embodiment is slidably connected to the base 20 through the sliding shaft 90, which is a sliding shaft focus mover 51. Among them, the friction coefficient of the sliding shaft 90 is large, so that the focus mover 51 can still achieve self-locking through the friction between itself and the sliding shaft 90 after power failure, so that there is no need for an external power supply to continuously power the lens motor 1, which is conducive to saving power and improving the battery life of the electronic device 1000. The sliding shaft 90 has a good anti-vibration effect, which is beneficial to ensuring the video effect of the electronic device 1000. At the same time, when the focus bracket 511 in the sliding shaft type focus actuator 51 moves relative to the base 20 along the Z axis direction, it is less likely to deflect, which is beneficial to ensuring the focus effect of the lens motor 1 and improving the imaging quality of the camera module 100. Among them, the tilt angle of the lens 2 can be less than or equal to 3min.

[0178] In addition, the lens motor 1 in this embodiment simultaneously inputs signals to the first sub-coil 7211 and the second sub-coil 7212, thereby pushing the first bracket 521 and driving the second bracket 522 to move relative to the base 20 along the X-axis direction. In this way, by simultaneously inputting signals to the first sub-coil 7211 and the second sub-coil 7212, the mover 50 can obtain a greater X-direction driving force, which is beneficial to increase the speed at which the second bracket 522 moves relative to the base 20 along the X-axis direction, and improve the response speed of the lens motor 1 in the X-axis direction.

[0179] The above specifically introduces how the lens motor 1 drives the lens 2 to move. The following will also specifically introduce the connection relationship between the lens assembly 400 and other components in the camera module 100 in conjunction with relevant drawings.

[0180] Fig.35 yes Figure 2b The camera module 100 shown is a partial cross-sectional view of one embodiment along line GG. Fig.36 yes Figure 2b The camera module 100 shown is a cross-sectional view of one embodiment along the GG line.

[0181] like Figure 3 , Fig.35 and Fig.36 As shown, the module housing 7 can cover the module base 5. The module base 5 can have an internal space 5a. At least part of the prism 4 can be accommodated in the internal space 5a of the module base 5. Exemplarily, the module housing 7 can be fixedly connected to the module base 5 by adhesive.

[0182] Exemplarily, the module base 5 may include a first upper surface 501 and a second upper surface 502. The first upper surface 501 and the second upper surface 502 have a height difference. Exemplarily, the second upper surface 502 may be higher than the first upper surface 501. It should be understood that the height referred to in this embodiment refers to the height in the Z-axis direction.

[0183] Exemplarily, the first upper surface 501 may be provided with a first light-transmitting hole 5011. The second upper surface 502 may be provided with a second light-transmitting hole 5021. The first light-transmitting hole 5011 may be connected to the second light-transmitting hole 5021 through the inner space 5a of the module base 5.

[0184] Exemplarily, the prism 4 may be fixed to the module base 5. The prism 4 may be higher than the first upper surface 501. The lens motor 1 may be fixedly connected to the first upper surface 501. At this time, the installation space 1a of the lens motor 1 may be arranged opposite to the first light-transmitting hole 5011 and connected to the internal space 5a of the module base 5. A part of the prism 4 may be located in the internal space 5a of the module base 5. Another part of the prism 4 may be located in the installation space 1a of the lens motor 1.

[0185] By way of example, the prism 4 may include a first surface 401, a first inclined surface 402, a second surface 403, and a second inclined surface 404 connected in sequence. The first surface 401 may include a first area 4011 and a second area 4012. The lens 2 and the photosensitive chip 601 may be located on the side of the first surface 401 facing away from the second surface 403. By way of example, the lens 2 may be disposed opposite to the first area 4011. The photosensitive chip 601 may be disposed opposite to the second area 4012.

[0186] Exemplarily, the circuit module 6 may include a photosensitive chip 601, a module circuit board 602, and a filter 603. The photosensitive chip 601 may be fixed to the module circuit board 602. The filter 603 may be located on a side of the photosensitive chip 601 away from the module circuit board 602. The photosensitive chip 601 is also called an image sensor or a photosensitive element. The photosensitive chip 601 may be used to collect ambient light and convert the image information carried by the ambient light into an electrical signal.

[0187] Exemplarily, the circuit module 6 can be fixedly connected to the second upper surface 502. At this time, the filter 603 can be arranged opposite to the second light-transmitting hole 5021. After passing through the lens 2, the ambient light enters the prism 4 from the first area 4011 of the first surface 401 of the prism 4, and after multiple reflections inside the prism 4, it is emitted from the second area 4012 of the first surface 401, passes through the second light-transmitting hole 5021 and the filter 603 in sequence, and finally enters the photosensitive chip 601 ( Fig.36 The propagation path of ambient light is also shown).

[0188] It can be understood that the camera module 100 in this embodiment sets an installation space 1a in the lens motor 1 and accommodates at least a portion of the prism 4 in the installation space 1a, so that the lens motor 1 can sink relative to the prism 4 to reduce the height of the lens motor 1, thereby achieving an overall reduction in the height of the camera module 100, which is conducive to achieving a thin setting of the camera module 100.

[0189] The above specifically introduces the structure of the camera module 100 in one embodiment, and the following will also specifically introduce several embodiments of the camera module 100 in conjunction with relevant drawings.

[0190] Fig.37 yes Fig.36 A partial cross-sectional schematic diagram of another embodiment of the camera module 100 is shown. Fig.38 yes Fig.36 A partial cross-sectional schematic diagram of another embodiment of the camera module 100 is shown.

[0191] like Fig.37 As shown, the camera module 100 in this embodiment is Fig.35 The structure of the camera module 100 shown is substantially the same, and the same parts are not repeated. The difference is that the photosensitive chip 601 of the camera module 100 in this embodiment can be located at the bottom of the prism 4. Exemplarily, the cross-sectional shape of the prism 4 can be substantially parallelogram. External light can be incident on the prism 4 through the lens assembly 400, and enter the photosensitive chip 601 after being reflected by the prism 4.

[0192] like Fig.38 As shown, the camera module 100 in this embodiment is Fig.35 The structure of the camera module 100 shown is substantially the same, and the same parts are not repeated. The difference is that the photosensitive chip 601 of the camera module 100 in this embodiment can be located on the peripheral side of the prism 4. Exemplarily, the cross-sectional shape of the prism 4 can be substantially trapezoidal. External light can be incident on the prism 4 through the lens assembly 400, and enter the photosensitive chip 601 after being reflected by the prism 4.

[0193] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of the present application. In other words, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0194] It should be noted that all the above drawings are illustrative illustrations of the present application and do not represent the actual size of the product. Moreover, the size ratio relationship between the components in the drawings is not intended to limit the actual product of the present application.

[0195] The above are only some embodiments and implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A lens motor (1), characterized in that: It comprises a stator (1b), a focus bracket (511), an anti-shake bracket (52a), a focus driving mechanism (51a), an anti-shake driving mechanism (52b) and a driving chip (60); The focus bracket (511) is movably connected to the stator (1b), the anti-shake bracket (52a) is movably connected to the focus bracket (511) and is located on the inner side of the focus bracket (511), and the anti-shake bracket (52a) is used to install the lens (2); The driving chip (60) is used to control the focus driving mechanism (51a), so that the focus driving mechanism (51a) drives the focus bracket (511) to drive the anti-shake bracket (52a) to move relative to the stator (1b) along a first direction. The driving chip (60) is also used to control the anti-shake driving mechanism (52b), so that the anti-shake driving mechanism (52b) drives the anti-shake bracket (52a) to move relative to the focus bracket (511) along a second direction and a third direction. The first direction is the optical axis direction of the lens (2), and the second direction and the third direction are different from the first direction. The stator (1b) comprises a base (20), the focus bracket (511) is movably connected to the base (20), the base (20) is provided with a first avoidance groove (211), and the first avoidance groove (211) runs through the bottom of the base (20); The anti-shake bracket (52a) comprises a first bracket (521) and a second bracket (522), the first bracket (521) is located between the bottom of the focus bracket (511) and the second bracket (522), the first bracket (521) is movably connected to the focus bracket (511), the second bracket (522) is movably connected to the first bracket (521), the first bracket (521) comprises a first branch (521a) and a second branch (521b), the second branch (521b) is connected to the first branch (521a); The bottom of the focusing bracket (511) comprises a first part (5111) and a second part (5112), the second part (5112) is stacked on the first part (5111), a part of the second part (5112) is arranged opposite to the first branch (521a), and another part of the second part (5112) is arranged opposite to the second branch (521b); The focusing bracket (511) is provided with a second avoidance groove (50a), the second avoidance groove (50a) is connected to the bottom space (5112a) of the anti-shake bracket (52a) and the first avoidance groove (211), the first avoidance groove (211), the second avoidance groove (50a) and the bottom space (5112a) of the focusing bracket (511) constitute an installation space (1a), and the installation space (1a) is used to accommodate a part of the prism (4).

2. The lens motor (1) according to claim 1, characterized in that: The base (20) is provided with a first avoidance hole (222a), and the first avoidance hole (222a) communicates with the outer peripheral side and the inner peripheral side of the base (20); The lens motor (1) further comprises a circuit board (30), wherein the circuit board (30) is fixed to the outer peripheral side of the base (20), the driving chip (60) is fixed to the circuit board (30) and is electrically connected to the circuit board (30), and at least a portion of the driving chip (60) is located in the first avoidance hole (222a).

3. The lens motor (1) according to claim 2, characterized in that: The anti-shake driving mechanism (52b) comprises an anti-shake coil (72) and an anti-shake magnetic component (52c), the anti-shake coil (72) is fixed on the circuit board (30) and electrically connected to the circuit board (30), the anti-shake magnetic component (52c) is fixed on the anti-shake bracket (52a), and the anti-shake coil (72) and the anti-shake magnetic component (52c) are arranged opposite to each other; The anti-shake coil (72) is electrically connected to the driving chip (60), and the driving chip (60) is also used to control the anti-shake coil (72) so as to drive the anti-shake bracket (52a) to move along the second direction relative to the focusing bracket (511) or drive the anti-shake bracket (52a) to move along the third direction relative to the focusing bracket (511) through the cooperation between the anti-shake coil (72) and the anti-shake magnetic component (52c).

4. The lens motor (1) according to claim 3, characterized in that: The anti-shake coil (72) is directed toward the anti-shake magnetic component (52c) through the first avoidance hole (222a).

5. The lens motor (1) according to claim 3 or 4, characterized in that: The driving chip (60) is used to control the anti-shake driving mechanism (52b) so that the anti-shake driving mechanism (52b) drives the first bracket (521) to drive the second bracket (522) to move along the second direction relative to the focusing bracket (511); the driving chip (60) is also used to control the anti-shake driving mechanism (52b) so that the anti-shake driving mechanism (52b) drives the second bracket (522) to move along the third direction relative to the first bracket (521).

6. The lens motor (1) according to claim 5, characterized in that: The anti-shake coil (72) includes a first coil (721) and a second coil (722); the anti-shake magnetic component (52c) includes a first magnetic component (523) and a second magnetic component (524); the first coil (721) and the first magnetic component (523) are arranged opposite to each other; and the second coil (722) and the second magnetic component (524) are arranged opposite to each other; The driving chip (60) is used to control the first coil (721) so as to drive the first bracket (521) to move along the second direction relative to the focusing bracket (511) through the cooperation between the first coil (721) and the first magnetic member (523); the driving chip (60) is also used to control the second coil (722) so as to drive the second bracket (522) to move along the third direction relative to the first bracket (521) through the cooperation between the second coil (722) and the second magnetic member (524).

7. The lens motor (1) according to claim 6, characterized in that: The first coil (721) includes a first sub-coil (7211) and a second sub-coil (7212), the first magnetic component (523) includes a first sub-magnetic component (5231) and a second sub-magnetic component (5232), the first sub-magnetic component (5231) and the second sub-magnetic component (5232) are located between the first sub-coil (7211) and the second sub-magnetic component (5232), the first sub-coil (7211) and the first sub-magnetic component (5231) are arranged opposite to each other, and the second sub-coil (7212) and the second sub-magnetic component (5232) are arranged opposite to each other.

8. The lens motor (1) according to claim 1, characterized in that: The first bracket (521) is movably connected to the focusing bracket (511) via a ball bearing (529), and / or the second bracket (522) is movably connected to the first bracket (521) via a ball bearing (529).

9. The lens motor (1) according to claim 1, characterized in that: The angle between the second branch (521b) and the first branch (521a) is less than 180°.

10. The lens motor (1) according to claim 9, characterized in that: The bottom space (5112a) is located at the bottom of the second part (5112), and the inner side surface of the first part (5111) faces the bottom space (5112a) of the second part (5112).

11. The lens motor (1) according to claim 1, characterized in that: The focusing bracket (511) is movably connected to the stator (1b) via a sliding shaft (90).

12. The lens motor (1) according to claim 2, characterized in that: The focus driving mechanism (51a) comprises a focus coil (71) and a focus magnetic part (512), wherein the focus coil (71) is fixed on the circuit board (30) and electrically connected to the circuit board (30), and the focus magnetic part (512) is fixed on the focus bracket (511), and the focus coil (71) and the focus magnetic part (512) are arranged opposite to each other; The focus coil (71) is electrically connected to the drive chip (60), and the drive chip (60) is also used to control the focus coil (71) so as to drive the focus bracket (511) to drive the anti-shake bracket (52a) to move relative to the stator (1b) along the first direction through the cooperation between the focus coil (71) and the focus magnetic part (512).

13. The lens motor (1) according to claim 12, characterized in that: The lens motor (1) further comprises a first magnetic sheet (40), wherein the first magnetic sheet (40) is fixed to the circuit board (30), the focus coil (71) is located between the first magnetic sheet (40) and the focus magnetic component (512), and the focus bracket (511) presses the stator (1b) under the action force between the first magnetic sheet (40) and the focus magnetic component (512).

14. The lens motor (1) according to claim 2, characterized in that: The lens motor (1) further comprises a first sensor (81), wherein the first sensor (81) is fixed to the circuit board (30) and electrically connected to the circuit board (30), and the driving chip (60) is electrically connected to the first sensor (81), and the first sensor (81) is used to detect the position of the focus bracket (511), and the driving chip (60) is also used to obtain information of the first sensor (81).

15. The lens motor (1) according to claim 1, characterized in that: The lens motor (1) further comprises a cover plate (53), wherein the cover plate (53) is connected to the focus bracket (511), and the cover plate (53) is located on a side of the anti-shake bracket (52a) away from the focus bracket (511).

16. A camera module (100), characterized in that: The camera module (100) includes a lens (2), a prism (4), a photosensitive chip (601), and a lens motor (1) according to any one of claims 1 to 15, wherein the lens (2) is mounted on the anti-shake bracket (52a), the prism (4) is located on the light-emitting side of the lens (2), and the photosensitive chip (601) is located on the light-emitting side of the prism (4).

17. The camera module (100) according to claim 16, characterized in that: The prism (4) comprises a first surface (401), a first inclined surface (402), a second surface (403) and a second inclined surface (404) which are connected in sequence; the lens (2) and the photosensitive chip (601) are both located on a side of the first surface (401) which is opposite to the second surface (403); the first surface (401) comprises a first area (4011) and a second area (4012); the lens (2) and the first area (4011) are arranged opposite to each other; and the photosensitive chip (601) and the second area (4012) are arranged opposite to each other; The ambient light passes through the lens (2) and enters the prism (4) from the first area (4011) of the first surface (401). After multiple reflections occur inside the prism (4), the ambient light is emitted from the second area (4012) of the first surface (401). The photosensitive chip (601) collects the ambient light that passes through the prism (4).

18. An electronic device (1000), characterized in that: It comprises a device housing (200) and a camera module (100) as described in claim 16 or 17, wherein the camera module (100) is arranged in the device housing (200).

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