Camera module and electronic equipment

Abstract

The embodiment of the utility model provides a camera module and electronic equipment. The camera module comprises a variable aperture assembly, a lens assembly and a driving assembly, the variable aperture assembly is fixedly connected to the cover plate; the lens assembly and the variable aperture assembly are arranged at intervals along the optical axis direction of the lens assembly; the driving assembly is connected with the lens assembly and used for driving the lens assembly to move close to or away from the variable aperture assembly. By fixedly connecting the variable aperture assembly with the cover plate, on one hand, the weight of the camera module can be reduced, so that the driving force of the driving assembly is reduced, and the miniaturization of the driving assembly is facilitated; and on the other hand, a safety space does not need to be reserved between the camera module and the cover plate, so that the overall height of the camera module is reduced, and application of the camera module in the electronic equipment with limited installation space is facilitated.

Description

Technical Field

[0001] The present application belongs to the field of electronic technology, and specifically relates to a camera module and electronic equipment. Background Art

[0002] In the related art, as the performance of electronic devices such as smart phones and tablet computers continues to improve, users have also put forward higher requirements for the photographing performance of electronic devices. In order to improve the photographing performance of camera modules in electronic devices, existing camera modules usually add a variable aperture to the lens, and the aperture size of the variable aperture is adjusted to change the amount of light entering the lens, thereby adapting to different shooting scenes.

[0003] In the process of implementing this application, the inventor found that the solutions adopted in the prior art have at least the following problems: in the process of the driving component driving the camera module to move to achieve focus, on the one hand, due to the increase in the weight of the camera module after adding a variable aperture, a greater driving force is required to drive the camera module to move, which leads to an increase in the volume of the driving component. On the other hand, in order to avoid the camera module from colliding with the cover during movement, some safety space is usually required, which leads to an increase in the overall height of the camera module, thereby affecting the application of the camera module in electronic devices with limited installation space. Utility Model Content

[0004] The present application aims to provide a camera module and an electronic device to solve the problem that the existing camera module is heavy and high and difficult to be used in electronic devices with limited installation space.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, the present application discloses a camera module, which is applied to an electronic device, wherein the electronic device includes a cover plate, and the camera module includes a variable aperture assembly, a lens assembly, and a driving assembly;

[0007] The variable aperture assembly is fixedly connected to the cover plate;

[0008] The lens assembly and the variable aperture assembly are arranged at intervals along the optical axis direction of the lens assembly;

[0009] The driving assembly is connected to the lens assembly, and is used to drive the lens assembly to move closer to or away from the variable aperture assembly.

[0010] In a second aspect, the present application further discloses an electronic device, the electronic device comprising:

[0011] Cover plate;

[0012] And the above-mentioned camera module, the camera module includes a variable aperture component, and the variable aperture component is fixedly connected to the cover plate.

[0013] In the embodiment of the present application, since the camera module includes a variable aperture assembly, a lens assembly and a driving assembly; the variable aperture assembly is fixedly connected to the cover plate; the lens assembly and the variable aperture assembly are spaced apart along the optical axis direction of the lens assembly; the driving assembly is connected to the lens assembly, and the driving assembly is used to drive the lens assembly to move closer to or away from the variable aperture assembly. In this way, on the one hand, since the variable aperture assembly is fixedly connected to the cover plate, that is, compared with the variable aperture assembly installed on the lens assembly in the prior art, the weight of the camera module of the embodiment of the present application is reduced, and the driving force required in the process of moving and focusing the camera module is reduced, which is conducive to the miniaturization of the driving assembly. On the other hand, since the variable aperture assembly is fixedly connected to the cover plate, that is, there is no need to reserve a safety space between the camera module and the cover plate, the overall height of the camera module can be reduced, which is conducive to the application of the camera module in electronic devices with limited installation space.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is one of the structural schematic diagrams of a camera module provided in an embodiment of the present application;

[0017] Figure 2 This is a second structural diagram of a camera module provided in an embodiment of the present application;

[0018] Figure 3 is a schematic structural diagram of a small aperture of a variable aperture assembly provided in an embodiment of the present application;

[0019] Figure 4 is a schematic structural diagram of a large aperture of a variable aperture assembly provided in an embodiment of the present application;

[0020] Figure 5 This is one of the structural schematic diagrams of a first lens assembly provided in an embodiment of the present application;

[0021] Figure 6 This is a second structural schematic diagram of another first lens assembly provided in an embodiment of the present application;

[0022] Figure 7is a schematic structural diagram of a second lens assembly and a driving assembly provided in an embodiment of the present application;

[0023] Figure 8 It is a schematic diagram of the structure of the photosensitive chip and the anti-shake component provided in the embodiment of the present application.

[0024] Figure markings: 1. variable aperture assembly, 11. base, 111. positioning column, 12. first carrier, 121. limiting column, 13. first ball, 14. first coil, 15. first magnet, 16. blade, 2. lens assembly, 21. first lens assembly, 211. first lens, 212. first lens barrel, 22. second lens assembly, 221. second lens, 222. second lens barrel, 3. driving assembly, 31. elastic connector, 32. second carrier, 33. second coil, 34. second magnet, 4. bracket, 5. photosensitive chip, 6. circuit board, 61. printed circuit board, 62. flexible circuit board, 7. anti-shake assembly, 71. third coil, 72. magnetic plate, 721. third magnet, 8. second ball, 9. filter, 10. cover plate, 101. light-transmitting part. DETAILED DESCRIPTION

[0025] The embodiments of the utility model will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] An embodiment of the present application provides a camera module, and the camera module of the present application is described in detail below with reference to the accompanying drawings.

[0030] Reference Figure 1 to Figure 2 , showing a schematic diagram of the structure of a camera module provided in an embodiment of the present application, referring to Figure 3 to Figure 4 , respectively showing a schematic diagram of the structure of a small aperture and a large aperture of a variable aperture assembly in a camera module provided in an embodiment of the present application, with reference to Figure 5 to Figure 6 , respectively showing the structural schematic diagrams of two first lens assemblies provided in the embodiments of the present application, referring to Figure 7 , showing a schematic diagram of the structure of the second lens assembly and the driving assembly provided in an embodiment of the present application, referring to Figure 8 , shows a schematic diagram of the structure of the photosensitive chip and the anti-shake component provided in an embodiment of the present application.

[0031] like Figure 1 to Figure 2 As shown, the present application provides a camera module, which is applied to an electronic device, the electronic device includes a cover plate 10, the camera module includes a variable aperture assembly 1, a lens assembly 2 and a driving assembly 3; the variable aperture assembly 1 is fixedly connected to the cover plate 10; the lens assembly 2 and the variable aperture assembly 1 are spaced apart along the optical axis direction of the lens assembly 2; the driving assembly 3 is connected to the lens assembly 2, and the driving assembly 3 is used to drive the lens assembly 2 to move closer to or away from the variable aperture assembly 1.

[0032] In the embodiment of the present application, on the one hand, since the variable aperture assembly 1 is fixedly connected to the cover plate 10, that is, compared with the prior art in which the variable aperture assembly 1 is installed on the lens assembly 2, the weight of the camera module of the embodiment of the present application is reduced, and the driving force required in the process of moving and focusing the camera module is reduced, which is conducive to the miniaturization of the driving assembly 3. On the other hand, since the variable aperture assembly 1 is fixedly connected to the cover plate 10, that is, there is no need to reserve a safety space between the camera module and the cover plate 10, the overall height of the camera module can be reduced, which is conducive to the application of the camera module in electronic equipment with limited installation space.

[0033] It should be noted that the electronic device of the embodiment of the present application can be 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, an augmented reality (AR) glasses, an AR helmet, a virtual reality (VR) glasses or a VR helmet, etc., which have a camera module. Taking a mobile phone as an example, the cover plate 10 can be a front cover plate of the mobile phone or a rear cover plate of the mobile phone, which is not limited here, and those skilled in the art can adjust it according to actual needs. The cover plate 10 is usually provided with a light-transmitting portion 101, and light enters the camera module through the light-transmitting portion 101 to achieve imaging. In the embodiment of the present application, since the variable aperture assembly 1 is fixedly connected to the cover plate 10, the aperture hole of the variable aperture assembly 1 can be always corresponding to the light-transmitting portion 101 of the cover plate 10, so as to avoid the aperture hole and the light-transmitting portion 101 from deviating, which affects the imaging quality and appearance of the mobile phone.

[0034] In practical applications, the variable aperture assembly 1 adopts an existing finished variable aperture. In one embodiment, the variable aperture assembly 1 includes a base 11, a first carrier 12, and blades 16; the base 11 is fixedly connected to the cover plate 10, and the base 11 is provided with an aperture hole at a position corresponding to the light-transmitting portion 101; along the direction from the base 11 to the cover plate 10, the first carrier 12 and the blades 16 are sequentially arranged between the base 11 and the cover plate 10, and the blades 16 are used to block the aperture hole; the first carrier 12 is arranged around the aperture hole, and the first carrier 12 is rotatably connected to the base 11; the blades 16 are rotatably connected to the base 11, and are slidably connected to the first carrier 12. Among them, a plurality of blades 16 are arranged, so that during the rotation of the first carrier 12 relative to the base 11, the plurality of blades 16 can be driven to close or spread, so that the aperture of the aperture hole formed by the plurality of blades 16 changes, thereby changing the amount of light entering the lens assembly 2 to meet different shooting requirements. For example, when shooting in close focus, the variable aperture assembly 1 switches to Figure 3 The small aperture shown in the figure is used to improve the resolution of close-focus shooting. When shooting at a long distance, the variable aperture component 1 is switched to Figure 4 The wide aperture shown increases the amount of light entering and the bokeh effect.

[0035] It should be noted that the embodiment of the present application only describes the method of driving the first carrier 12 to rotate relative to the base 11 through an electromagnetic structure, and in actual applications, those skilled in the art may also drive the first carrier 12 to rotate relative to the base 11 through a memory metal structure, a piezoelectric structure, an electrostatic drive structure or other drive structures, which are not limited here. In addition, the embodiment of the present application does not limit the number and shape of the blades 16, and those skilled in the art may adjust them as needed.

[0036] Specifically, the variable aperture assembly 1 further includes a plurality of first balls 13, which are movably sandwiched between the first carrier 12 and the base 11, so that the first carrier 12 is rotatably connected to the base 11. The variable aperture assembly 1 further includes a first coil 14 and a first magnet 15, the first coil 14 is disposed on the first carrier 12, and the first magnet 15 is disposed on the base 11, and the first magnet 15 is used to generate a magnetic field acting on the first coil 14, so as to drive the first carrier 12 to rotate relative to the base 11 and drive the plurality of blades 16 to close or spread, so as to change the aperture of the aperture hole and adjust the amount of light entering the camera module. In addition, the base 11 is provided with a positioning column 111, the first carrier 12 is provided with a limiting column 121, and the blade 16 is provided with a positioning hole and a sliding hole, wherein the positioning column 111 is inserted into the positioning hole, and the limiting column 121 is inserted into the sliding hole. During the rotation of the first carrier 12 relative to the base 11, as the position of the limiting column 121 in the sliding hole changes, the blade 16 also deflects accordingly, thereby realizing the closing and spreading of multiple blades 16. In addition, the variable aperture assembly 1 is also provided with a metal conductive network to provide electrical energy to the variable aperture assembly 1.

[0037] In some optional embodiments of the present application, the variable aperture assembly 1 is bonded to the cover plate 10 .

[0038] In the embodiment of the present application, since the variable aperture assembly 1 is bonded to the cover plate 10 , this fixing method is simple and convenient, and will not cause damage to the cover plate 10 .

[0039] In a specific application, the cover plate 10 can be bonded to any part of the variable aperture assembly 1 without interfering with the rotation of the blades 16. This is not limited here, and those skilled in the art can make adjustments according to actual needs. In one embodiment, a boss (not shown in the drawings) is provided on the side of the base 11 of the variable aperture assembly 1 close to the cover plate 10. The boss extends along the circumferential direction of the base 11. The boss and the base 11 are enclosed to form a receiving cavity. A plurality of blades 16 are closed or spread out in the receiving cavity, which can protect the blades 16 and prevent the blades 16 from contacting other components and interfering with the rotation of the blades 16. At the same time, an adhesive can be provided on the side of the boss away from the base 11, and the variable aperture assembly 1 can be fixed by bonding the adhesive to the cover plate 10.

[0040] In some optional embodiments of the present application, the camera module also includes a bracket 4, which is fixedly connected to the cover plate 10; a through hole is provided on the bracket 4 and passes through the bracket 4 along the optical axis direction; the variable aperture assembly 1 and the lens assembly 2 are both arranged in the through hole, and the variable aperture assembly 1 is fixedly connected to the bracket 4.

[0041] In the embodiment of the present application, since the first bracket 4 is provided, the first bracket 4 is provided with a through hole, the variable aperture assembly 1 and the lens assembly 2 are both provided in the through hole, wherein the variable aperture assembly 1 is fixedly connected to the bracket 4. In this way, since the variable aperture assembly 1 is connected to the cover plate 10 and the bracket 4 at the same time, the fixing reliability of the variable aperture assembly 1 can be improved.

[0042] It should be noted that the bracket 4 can be integrally formed with the variable aperture assembly 1; or it can be separately formed with the variable aperture assembly 1 and then connected, which is not limited here, and those skilled in the art can adjust it as needed. It is understandable that when the bracket 4 is integrally formed with the variable aperture assembly 1, the assembly process of the camera module can be simplified.

[0043] In some optional embodiments of the present application, the lens assembly 2 includes a first lens assembly 21 and a second lens assembly 22 spaced apart along the optical axis direction, and the first lens assembly 21 is arranged adjacent to the variable aperture assembly 1; the first lens assembly 21 is fixedly connected to the through hole; the driving assembly 3 is connected to the second lens assembly 22, and the driving assembly 3 is used to drive the second lens assembly 22 to move closer to or away from the variable aperture assembly 1.

[0044] In the embodiment of the present application, the lens assembly 2 includes a first lens assembly 21 and a second lens assembly 22, wherein the first lens assembly 21 is fixedly connected to the through hole, and the second lens assembly 22 is connected to the driving assembly 3. That is, the embodiment of the present application disassembles the lens assembly 2 into two parts, the first lens assembly 21 and the second lens assembly 22, and the driving assembly 3 is only connected to the second lens assembly 22, so that the driving force of the driving assembly 3 is further reduced, which is conducive to the miniaturization of the driving assembly 3, and then the miniaturization of the camera module, which is conducive to the application of the camera module in electronic devices with limited installation space. In addition, in the process of the driving assembly 3 driving the second lens assembly 22 to move close to or away from the variable aperture assembly 1, the focus of the camera module can be achieved, which is conducive to improving the imaging quality of the camera module.

[0045] In practical applications, the first lens assembly 21 includes at least one first lens 211, and the second lens assembly 22 includes at least one second lens 221. When the first lens assembly 21 includes multiple first lenses 211, the multiple first lenses 211 are sequentially spaced along the optical axis, and when the second lens assembly 22 includes multiple second lenses 221, the multiple second lenses 221 are sequentially spaced along the optical axis. In one embodiment, Figure 5 As shown, a plurality of first lenses 211 are respectively bonded to the hole walls of the through holes; in another embodiment, as Figure 6 As shown, a plurality of first lenses 211 are installed in a first lens barrel 212, and the first lens barrel 212 is bonded to the hole wall of the through hole. It can be understood that compared with the latter, the former does not need to be provided with the first lens barrel 212, which is conducive to reducing the manufacturing cost of the camera module. Figure 7 As shown, multiple second lenses 221 are installed in the second lens barrel 222, and the second lens barrel 222 is bonded to at least a portion of the driving assembly 3, thereby driving the second lens barrel 222 and the second lenses 221 arranged in the second lens barrel 222 to move closer to or away from the variable aperture assembly 1, thereby achieving the focus of the camera module.

[0046] In some optional embodiments of the present application, such as Figure 7As shown, the driving assembly includes a second carrier 32, a second coil 33 and a second magnet 34; the second carrier 32 is arranged on the periphery of the second lens assembly 22, and the second coil 33 is arranged on the side of the second carrier 32 away from the second lens assembly 22; the second magnet 34 is arranged on the side of the bracket 4 close to the second carrier 32, and the second magnet 34 is used to generate a magnetic field acting on the second coil 33. Under the action of the second coil 33 and the second magnet 34, the second lens assembly 22 moves close to or away from the variable aperture assembly 1. In this way, when the second coil 33 is energized, an Ampere force can be generated between the second coil 33 and the second magnet 34, so that the second lens assembly 22 can be pushed to move close to or away from the variable aperture assembly 1 to achieve the focus of the camera module. In addition, the driving assembly 3 is also provided with a metal conductive network to provide electrical energy to the driving assembly 3.

[0047] It should be noted that the drive assembly 3 can be arranged to extend along the circumference of the second lens assembly 22. In this way, the size of the drive assembly 3 along the optical axis direction can be further reduced, so that the overall height of the camera module can be reduced, which is conducive to the application of the camera module in electronic devices with limited installation space. In addition, the drive assembly 3 can be integrally formed with the bracket 4, or it can be separately formed with the bracket 4 and then connected. It can be understood that when the bracket 4 and the drive assembly 3 are integrally formed, the assembly process of the camera module can be simplified, which is conducive to improving the assembly efficiency of the camera module.

[0048] like Figure 7 As shown, the second carrier 32 is fixedly connected to the second lens assembly 22, specifically, the second carrier 32 is fixedly connected to the outer periphery of the second lens barrel 222; the camera module also includes an elastic connector 31, which is arranged between the bracket 4 and the second carrier 32, and is respectively connected to the bracket 4 and the second carrier 32, and the elastic connector 31 is used to limit the movement of the second lens assembly 22.

[0049] In the embodiment of the present application, since an elastic connector 31 is provided, the elastic connector 31 is connected to the bracket 4 and the second carrier 32 respectively, and the second carrier 32 is fixedly connected to the second lens barrel 222, so that the movement of the second lens assembly 22 can be limited to avoid the second lens assembly 22 from colliding with the first lens assembly 21 or other components during the focusing process of the camera module, which is beneficial to improving the safe use performance of the camera module.

[0050] It should be noted that the elastic connector 31 in the embodiment of the present application refers to a connector that can undergo elastic deformation itself. The elastic connector 31 includes but is not limited to a spring, and those skilled in the art can select one according to actual needs.

[0051] like Figure 8As shown, the camera module also includes: a photosensitive chip 5 and an anti-shake component 7; wherein the photosensitive chip 5 is movably connected in the through hole; the anti-shake component 7 is connected to the photosensitive chip 5, and the anti-shake component 7 is used to drive the photosensitive chip 5 to move in the through hole to achieve anti-shake.

[0052] In the embodiment of the present application, a photosensitive chip 5 and an anti-shake component 7 are provided, wherein the photosensitive chip 5 is movably connected in the through hole, and the anti-shake component 7 is connected to the photosensitive chip 5. When the electronic device shakes, the anti-shake component 7 can drive the photosensitive chip 5 to move in the through hole to perform a certain displacement compensation for the shake, which is beneficial to improving the imaging quality of the camera module.

[0053] It should be noted that the anti-shake component 7 can be arranged in sequence with the photosensitive chip 5 along the optical axis direction, wherein the anti-shake component 7 is arranged on the side of the photosensitive chip 5 away from the lens assembly 2 and is fixedly connected to the bracket 4. The anti-shake component 7 can also be arranged on the peripheral side of the photosensitive chip 5, wherein the side of the anti-shake component 7 away from the photosensitive chip 5 is fixedly connected to the bracket 4. The embodiment of the present application does not limit the specific arrangement positions of the anti-shake component 7 and the photosensitive chip 5, and those skilled in the art can adjust according to actual needs.

[0054] In some optional embodiments of the present application, the camera module also includes: a circuit board 6, specifically, the circuit board 6 includes a printed circuit board 61 and a flexible circuit board 62, the photosensitive chip 5 is fixedly connected to the printed circuit board 61, and the printed circuit board 61 is movably connected to the bracket 4 through the flexible circuit board 62; the anti-shake component 7 includes a magnetic plate 72 and a third coil 71, the magnetic plate 72 is fixedly connected to the bracket 4, the third coil 71 is connected to the printed circuit board 61, and the magnetic plate 72 is used to generate a magnetic field acting on the third coil 71 to drive the printed circuit board 61 to drive the photosensitive chip 5 to move in the through hole.

[0055] In the embodiment of the present application, on the one hand, since the printed circuit board 61 and the flexible circuit board 62 are provided, the printed circuit board 61 is movably connected to the bracket 4 through the flexible circuit board 62, and the photosensitive chip 5 is fixedly connected to the printed circuit board 61, while the photosensitive chip 5 is reliably supported, the photosensitive chip 5 can be moved so as to compensate for the jitter to a certain extent. On the other hand, since the magnetic plate 72 and the third coil 71 are provided, the magnetic plate 72 is fixedly connected to the bracket 4, and the third coil 71 is connected to the printed circuit board 61, the magnetic plate 72 can generate a magnetic field acting on the third coil 71, thereby driving the printed circuit board 61 to drive the photosensitive chip 5 to move in the through hole to achieve anti-shake. In addition, since the magnetic plate 72 is provided at the bottom of the entire camera module, the internal components of the camera module, such as the magnetic components of the drive component 3 and the variable aperture component 1, and the distance between the camera module and other components in the electronic device, such as other camera modules, can be increased, which is conducive to reducing the risk of magnetic interference between the internal components of the camera module and the components in the electronic device. In addition, the anti-shake component 7 is also provided with a metal conductive network to provide electrical energy to the anti-shake component 7 .

[0056] It should be noted that the printed circuit board (PCB) 61 is made of an insulating and heat-insulating substrate that is not easy to bend and has good load-bearing capacity; the flexible printed circuit (FPC) 62 is made of a flexible insulating substrate, such as polyimide, polyester film, etc., and can be freely bent, wound or folded. In addition, the third coil 71 can be formed by etching a circuit directly on the printed circuit board 61, or it can be a finished coil directly attached to the printed circuit board 61. This is not limited here, and those skilled in the art can make a choice according to actual needs.

[0057] In a specific application, the magnetic plate 72 of the embodiment of the present application refers to a structure that has magnetism and can generate a magnetic field that acts on the third coil 71. In one embodiment, the magnetic plate 72 includes a main body and a third magnet 721. The third magnet 721 is arranged on the main body and corresponds to the position of the third coil 71, so that a magnetic field acting on the third coil 71 can be generated to drive the printed circuit board 61 to drive the photosensitive chip 5 to move in the through hole to achieve anti-shake. It should be noted that the third magnet 721 can be directly attached to the main body or embedded in the main body. It can be understood that when the third magnet 721 is embedded in the main body, the thickness of the magnetic plate 72 can be reduced, which is conducive to further reducing the overall height of the camera module.

[0058] In a specific application, the camera module further includes a second ball bearing 8, which is sandwiched between the printed circuit board 61 and the magnetic plate 72. Under the interaction between the third coil 71 and the third magnet 721 of the magnetic plate 72, the printed circuit board 61 can deflect or move relative to the magnetic plate 72 to compensate for the jitter to a certain extent. The second ball bearing 8 can be provided by one or more, which is not limited here, and those skilled in the art can adjust it according to actual needs.

[0059] In some optional embodiments of the present application, the camera module further includes: a filter 9, which is located between the lens assembly 2 and the photosensitive chip 5 and is fixedly connected to the bracket 4. In this way, since the filter 9 is provided, infrared rays can be filtered out to avoid the influence of infrared rays on visible light, thereby improving the imaging quality of the camera module.

[0060] In summary, the camera module provided by the embodiment of the present application has at least the following advantages:

[0061] In the embodiment of the present application, since the camera module includes a variable aperture assembly, a lens assembly and a driving assembly; the variable aperture assembly is fixedly connected to the cover plate; the lens assembly and the variable aperture assembly are spaced apart along the optical axis direction of the lens assembly; the driving assembly is connected to the lens assembly, and the driving assembly is used to drive the lens assembly to move closer to or away from the variable aperture assembly. In this way, on the one hand, since the variable aperture assembly is fixedly connected to the cover plate, that is, compared with the variable aperture assembly installed on the lens assembly in the prior art, the weight of the camera module of the embodiment of the present application is reduced, and the driving force required in the process of moving and focusing the camera module is reduced, which is conducive to the miniaturization of the driving assembly. On the other hand, since the variable aperture assembly is fixedly connected to the cover plate, that is, there is no need to reserve a safety space between the camera module and the cover plate, the overall height of the camera module can be reduced, which is conducive to the application of the camera module in electronic devices with limited installation space.

[0062] An embodiment of the present application further provides an electronic device, which includes: a cover plate 10 ; and a camera module according to any one of the above embodiments, wherein the camera module includes a variable aperture assembly 1 , and the variable aperture assembly 1 is fixedly connected to the cover plate 10 .

[0063] It should be noted that in the embodiment of the present application, the structure of the camera module is the same as the structure of the camera module described in any of the above embodiments, and its beneficial effects are also similar, which will not be repeated here. The cover plate can be a front cover plate or a rear cover plate. Electronic devices include but are not limited to mobile phones, tablet personal computers, laptop computers, personal digital assistants (PDAs), cameras, personal computers, notebook computers, vehicle-mounted devices, wearable devices, augmented reality (AR) glasses, AR helmets, virtual reality (VR) glasses or VR helmets and other devices with camera modules.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A camera module, applied to an electronic device, the electronic device comprising a cover plate (10), characterized in that: The camera module comprises a variable aperture component (1), a lens component (2) and a drive component (3); The variable aperture assembly (1) is fixedly connected to the cover plate (10); The lens assembly (2) and the variable aperture assembly (1) are arranged at intervals along the optical axis direction of the lens assembly (2); The driving component (3) is connected to the lens component (2), and the driving component (3) is used to drive the lens component (2) to move closer to or away from the variable aperture component (1).

2. The camera module according to claim 1, characterized in that: The cover plate (10) has a light-transmitting portion (101), and the light-transmitting portion (101) is used to transmit light; The variable aperture assembly (1) comprises a base (11), a first carrier (12) and blades (16); The base (11) is fixedly connected to the cover plate (10), and the base (11) is provided with an aperture hole at a position corresponding to the light-transmitting portion (101); Along the direction from the base (11) to the cover plate (10), the first carrier (12) and the blade (16) are sequentially arranged between the base (11) and the cover plate (10), and the blade (16) is used to cover the aperture hole; The first carrier (12) is arranged around the aperture hole, and the first carrier (12) is rotatably connected to the base (11); The blade (16) is rotatably connected to the base (11) and slidably connected to the first carrier (12).

3. The camera module according to claim 2, characterized in that: The variable aperture assembly (1) further comprises a first coil (14), a first magnet (15) and a first ball (13); The first coil (14) is arranged on the first carrier (12); The first magnet (15) is arranged on the base (11), and the first magnet (15) is used to generate a magnetic field acting on the first coil (14); The first rolling ball (13) is sandwiched between the first carrier (12) and the base (11), so that the first carrier (12) rotates relative to the base (11) under the interaction of the first coil (14) and the first magnet (15).

4. The camera module according to claim 2, characterized in that: A boss is provided on a side of the base (11) close to the cover plate (10), and a side of the boss facing away from the base (11) is fixedly connected to the cover plate (10).

5. The camera module according to claim 1, characterized in that: The camera module also includes a bracket (4), and the bracket (4) is fixedly connected to the cover plate (10); The bracket (4) is provided with a through hole extending along the direction of the optical axis; The variable aperture assembly (1) and the lens assembly (2) are both arranged in the through hole, and the variable aperture assembly (1) is fixedly connected to the bracket (4).

6. The camera module according to claim 5, characterized in that: The lens assembly (2) comprises a first lens assembly (21) and a second lens assembly (22) which are arranged at intervals along the optical axis direction, and the first lens assembly (21) is arranged adjacent to the variable aperture assembly (1); The first lens assembly (21) is fixedly connected to the through hole; The driving assembly (3) is connected to the second lens assembly (22), and the driving assembly (3) is used to drive the second lens assembly (22) to move closer to or away from the variable aperture assembly (1).

7. The camera module according to claim 6, characterized in that: The driving component comprises a second carrier (32), a second coil (33) and a second magnet (34); The second carrier (32) is arranged on the outer periphery of the second lens assembly (22), and the second coil (33) is arranged on a side of the second carrier (32) facing away from the second lens assembly (22); The second magnet (34) is arranged on a side of the bracket (4) close to the second carrier (32), and the second magnet (34) is used to generate a magnetic field acting on the second coil (33), and under the action of the second coil (33) and the second magnet (34), the second lens assembly (22) moves closer to or away from the variable aperture assembly (1).

8. The camera module according to claim 7, characterized in that: The second carrier (32) is fixedly connected to the second lens assembly (22); The camera module further comprises an elastic connecting member (31), wherein the elastic connecting member (31) is arranged between the bracket (4) and the second carrier (32), and is respectively connected to the bracket (4) and the second carrier (32), and the elastic connecting member (31) is used to limit the movement of the second lens assembly (22).

9. The camera module according to claim 6, characterized in that: The first lens assembly (21) comprises a plurality of lenses (211), wherein the plurality of lenses (211) are sequentially arranged at intervals along the optical axis direction and are respectively bonded to the hole walls of the through holes.

10. The camera module according to claim 5, characterized in that: The camera module further comprises: a photosensitive chip (5) and an anti-shake component (7); wherein: The photosensitive chip (5) is movably connected in the through hole; The anti-shake component (7) is connected to the photosensitive chip (5), and the anti-shake component (7) is used to drive the photosensitive chip (5) to move in the through hole to achieve anti-shake.

11. The camera module according to claim 10, characterized in that: The camera module further comprises: a printed circuit board (61) and a flexible circuit board (62), the photosensitive chip (5) being fixedly connected to the printed circuit board (61), and the printed circuit board (61) being movably connected to the bracket (4) via the flexible circuit board (62); The anti-shake component (7) includes a magnetic plate (72) and a third coil (71), wherein the magnetic plate (72) is fixedly connected to the bracket (4), and the third coil (71) is connected to the printed circuit board (61), and the magnetic plate (72) is used to generate a magnetic field acting on the third coil (71) to drive the printed circuit board (61) to drive the photosensitive chip (5) to move in the through hole.

12. An electronic device, characterized in that: The electronic device comprises: Cover plate (10); And the camera module according to any one of claims 1 to 11, the camera module comprising a variable aperture assembly (1), and the variable aperture assembly (1) is fixedly connected to the cover plate (10).

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