Variable aperture, camera module and electronic equipment

Abstract

The embodiment of the invention provides a variable aperture, a camera module and electronic equipment, relates to the technical field of camera shooting, and is used for reducing the eccentricity probability of an aperture hole of the variable aperture. In the iris ring, a first track and a second track are defined by a fixed seat and a rotating bracket. The first rolling piece and the second rolling piece which are located between the fixing base and the rotating support in the optical axis direction are located on the first track and the second track respectively. The first rolling piece rolls along the first track along a first arc track, and the second rolling piece rolls along the second track along a second arc track. In the optical axis direction of the iris diaphragm, the rotation trajectory of the rotation bracket may be concentric with the first arc trajectory and the second arc trajectory with respect to the optical axis.

Description

Technical Field

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

[0002] With the continuous development of electronic equipment integration technology, taking photos and videos has become one of the common functions of electronic equipment, making the application of cameras in electronic equipment more and more extensive. The above-mentioned camera has a variable aperture, and the variable aperture has an aperture hole with an adjustable aperture. By changing the size of the aperture hole, the amount of external light entering the camera can be adjusted. At present, the variable aperture has a serious problem of aperture hole eccentricity, resulting in poor aperture accuracy and reduced product quality. Summary of the invention

[0003] The present application provides a variable aperture, a camera module, and an electronic device, which are used to reduce the probability of eccentricity of the aperture hole of the variable aperture.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In one aspect of the present application, a variable aperture is provided, which includes a fixed seat, a rotating bracket, a first rolling member and a second rolling member. The fixed seat is provided with a first V-shaped groove and a second V-shaped groove. The rotating bracket is located in the fixed seat, and the rotating bracket is provided with a third V-shaped groove and a fourth V-shaped groove. The first V-shaped groove and the third V-shaped groove surround a first track, and the second V-shaped groove and the fourth V-shaped groove surround a second track. The first rolling member is located in the first track, the first rolling member abuts against the side walls of the first V-shaped groove and the third V-shaped groove, and the first rolling member is used to roll along the first track with a first arc track. The second rolling member is located in the second track, the second rolling member abuts against the side walls of the second V-shaped groove and the fourth V-shaped groove, and the second rolling member is used to roll along the second track with a second arc track. The rotating bracket is rotatably connected to the fixed seat through the first rolling member and the second rolling member. Wherein, along the optical axis direction of the variable aperture, the first rolling member and the second rolling member are located between the fixed seat and the rotating bracket, and the first arc track and the second arc track are concentrically arranged about the optical axis.

[0006] In summary, since the first rolling member is located in the first track, the first rolling member abuts against the side wall of the first V-shaped groove and the side wall of the third V-shaped groove, so that the first rolling member can roll along the extension direction of the first track with a first arc track. Similarly, the second rolling member can be located in the second track, and the second rolling member can abut against the side wall of the second V-shaped groove and the side wall of the fourth V-shaped groove, so that the second rolling member can roll along the extension direction of the second track with a second arc track. In this way, the rotating bracket can be rotatably connected to the above-mentioned fixed seat through the above-mentioned first rolling member and the second rolling member. On this basis, since the first arc track and the second arc track are arranged concentrically with respect to the optical axis, during the process of the rotating bracket rotating relative to the fixed seat through the first rolling member and the second rolling member, the rotation track of the rotating bracket can be concentric with the first arc track and the second arc track with respect to the optical axis, thereby reducing the probability of eccentricity of the aperture hole of the variable aperture. In addition, for the scheme of arranging the ball between the rotor side wall and the stator side wall, the circularity requirements of the rotor side wall and the stator side wall are relatively high. In the present application, along the optical axis direction of the variable aperture, the first rolling member and the second rolling member can be located between the fixed seat and the rotating bracket, so that there is no need to have high requirements on the roundness of the side wall of the fixed seat and the side wall of the rotating bracket, which is more conducive to reducing the probability of eccentricity of the aperture hole of the variable aperture.

[0007] In an optional embodiment, the fixed seat is further provided with a first receiving groove, and the rotating bracket is further provided with a second receiving groove. The first receiving groove and the second receiving groove surround a third track. At least one of the first receiving groove and the second receiving groove is a first U-shaped groove. The variable aperture further includes a third rolling member, and the third rolling member is located in the third track. The third rolling member abuts against the bottom surface of the first U-shaped groove, and has a first gap with at least one side wall of the first U-shaped groove, and the third rolling member is used to roll in the third track. The third rolling member is located between the fixed seat and the rotating bracket along the optical axis. In this case, on the one hand, since the third rolling member abuts against the bottom surface of the first U-shaped groove, when the variable aperture is subjected to a force F during assembly, use or reliability testing, the rotating bracket can be supported by the third rolling member abutting against the bottom surface of the first U-shaped groove, thereby dispersing the above-mentioned force acting on the first rolling member and the second rolling member, thereby improving the service life of the first rolling member and the second rolling member, and finally achieving the effect of improving the reliability of the variable aperture. On the other hand, it can be seen from the above that the first rolling member abuts against the side walls of the first V-shaped groove and the side walls of the third V-shaped groove. The second rolling member abuts against the side walls of the second V-shaped groove and the side walls of the fourth V-shaped groove. In this way, during the rotation of the rotating bracket relative to the fixed seat, the first rolling member rolls along the first track and the second rolling member rolls along the second track. Based on this, by setting the above-mentioned first gap between the third rolling member and at least one side wall of the first U-shaped groove, the first gap can allow the third rolling member to have a certain amount of movement space in the surface perpendicular to the optical axis, thereby avoiding the occurrence of jamming between the rotating bracket and the fixed seat.

[0008] In an optional embodiment, the first receiving groove is a fifth V-shaped groove, and the second receiving groove is a first U-shaped groove. The third rolling member abuts against the side wall of the fifth V-shaped groove. In this way, the third rolling member is more likely to abut against the side wall of the fifth V-shaped groove under the action of gravity, so that the third rolling groove can more easily roll along the fifth V-shaped groove.

[0009] In an optional embodiment, the first accommodating groove and the second accommodating groove can both be U-shaped grooves, or the first accommodating groove is a U-shaped groove and the second accommodating groove is a V-shaped groove. The technical effects of the above-mentioned U-shaped groove and V-shaped groove are the same as described above and will not be repeated here.

[0010] In an optional implementation, the radius of the first arc track is the same as the radius of the second arc track. In this way, the distances between the first track and the second track and the optical axis can be the same, thereby simplifying the manufacturing process of the variable aperture.

[0011] In an optional embodiment, the variable aperture further includes a fourth rolling member and a fifth rolling member. The fourth rolling member is located in the first track. A second gap is provided between the fourth rolling member and at least one side wall of the first V-shaped groove or the third V-shaped groove. The fourth rolling member and the first rolling member are arranged along the extension direction of the first track. The fifth rolling member is located in the second track, and a third gap is provided between the fifth rolling member and at least one side wall of the second V-shaped groove or the fourth V-shaped groove. The fifth rolling member and the second rolling member are arranged along the extension direction of the second track. In this way, the fourth rolling member can have a certain activity space in the third V-shaped groove, so as not to affect the rolling of the first rolling member located in the same first track, and reduce the probability of the occurrence of the jamming phenomenon between the rotating bracket and the fixed seat. In addition, during the assembly, use or reliability test of the variable aperture, when the force causes the rotating bracket to move downward, the side wall of the third V-shaped groove abuts against the fourth rolling member. In this way, the fourth rolling element can support the rotating bracket, thereby dispersing the above-mentioned force acting on the above-mentioned first rolling element, improving the service life of the first rolling element, and finally achieving the effect of improving the reliability of the variable aperture. The technical effect of the fifth rolling element can be obtained in the same way, which will not be repeated here.

[0012] In an optional embodiment, the fixed seat is an annular structure, and a first avoidance groove and a second avoidance groove are provided on the side wall of the fixed seat. In addition, the rotating bracket includes an annular portion, a first lug and a second lug. The annular portion is located in the fixed seat. The first lug is arranged on the side wall of the annular portion and is connected to the annular portion. The first lug is located in the first avoidance groove, and a fourth gap is provided between the first lug and the side wall of the first avoidance groove. The second lug is arranged on the side wall of the annular portion and is connected to the annular portion. The second lug is located in the second avoidance groove, and a fifth gap is provided between the groove wall of the second avoidance groove. In this way, by providing the first lug, the second lug and the third lug of the rotating bracket on the fixed seat, and the first avoidance groove, the second avoidance groove and the third avoidance groove respectively matching with each other, the rotation of the rotating bracket can be limited in a surface perpendicular to the optical axis.

[0013] In an optional embodiment, the first V-shaped groove is formed on the bottom surface of the first avoidance groove. The second V-shaped groove is formed on the bottom surface of the second avoidance groove. The third V-shaped groove is formed on the surface of the first lug facing the fixed seat. The fourth V-shaped groove is formed on the surface of the second lug facing the fixed seat. In this way, the size space of the area where the lug and the avoidance groove are located can be fully utilized, making the structure of the entire variable aperture more compact, which is conducive to realizing the miniaturized design of the product.

[0014] In an optional embodiment, a first accommodating groove is further provided on the fixed seat, and a second accommodating groove is further provided on the rotating bracket. A third avoidance groove is also provided on the side wall of the fixed seat. The rotating bracket also includes a third lug, and the third lug is provided on the side wall of the annular portion and is connected to the annular portion. The third lug is located in the third avoidance groove, and a sixth gap is provided between the third lug and the groove wall of the third avoidance groove. The first accommodating groove is provided on the bottom surface of the third avoidance groove; and the second accommodating groove is provided on the surface of the third lug facing the fixed seat. Similarly, by making full use of the size space of the area where the above-mentioned lugs and avoidance grooves are located, the structure of the entire variable aperture is more compact, which is conducive to realizing the miniaturized design of the product.

[0015] In an optional embodiment, the variable aperture further includes a magnet assembly and a magnetic conductive sheet. The magnet assembly is disposed on the surface of the side wall of the annular portion facing the fixed seat. The magnetic conductive sheet is connected to the fixed seat, and along the optical axis, the magnetic conductive sheet is used to adsorb the magnet assembly. In this way, when the rotating bracket is rotating, the magnetic conductive sheet adsorbs the magnet assembly along the optical axis, which can reduce the separation of the rotating bracket from the fixed seat during the rotation of the camera module, thereby improving the reliability of the variable aperture.

[0016] In an optional embodiment, the fixing seat is a plastic part, the magnetic conductive sheet is embedded in the plastic part, and the magnetic conductive sheet is a ring-shaped structure. For example, the magnetic conductive sheet and the fixing seat can be formed as an integrated structural part by an embedded injection molding process. The magnetic conductive sheet can improve the rigidity of the integrated structural part.

[0017] In an optional implementation, the magnetic conductive sheet is disposed on the bottom surface of the fixed seat away from the rotating bracket. In this way, the magnetic conductive sheet can be connected to the fixed seat by a bonding process to simplify the preparation process of the variable aperture.

[0018] In an optional embodiment, the variable aperture further includes a plurality of blades and an aperture cover. The plurality of blades are arranged on a rotating bracket, the blades are slidably connected to the rotating bracket, and are rotatably connected to the fixed seat, and the plurality of blades are distributed in a ring to surround an aperture hole. During the movement of the plurality of blades, the size of the aperture hole changes accordingly. In addition, the aperture cover is arranged on the fixed seat and wraps a portion of the side wall of the fixed seat. The rotating bracket and the blades are located in the aperture cover, and the aperture cover is connected to the fixed seat. Since the aperture cover wraps a portion of the side wall of the fixed seat, and the aperture cover is connected to the fixed seat, the aperture cover can protect the fixed seat, the rotating bracket and the blades covered by it. During the assembly, use or reliability testing of the variable aperture, collisions between the fixed seat, the rotating bracket and the blades and the external parts of the variable aperture are avoided.

[0019] In an optional embodiment, the aperture cover includes a metal cover and a buffer layer. The metal cover includes a cover plate and a side plate connected to each other. The side plate is arranged around the periphery of the cover plate and wraps a part of the side wall of the fixing seat, and the side plate is connected to the fixing seat. A first light-transmitting hole is provided on the cover plate, and the first light-transmitting hole is connected to the aperture hole. The buffer layer is arranged around the periphery of the first light-transmitting hole and covers a part of the cover plate and the side plate. In this way, since the buffer layer covers the cover plate and the side plate of the metal cover, the metal cover can be protected. When the variable aperture is hit during assembly, use or reliability testing, the aperture cover protects the remaining components of the variable aperture, thereby preventing the remaining components from being directly affected by external forces. In addition, the buffer layer can buffer external forces, reduce the force acting on the metal cover, and further improve the effect of protecting the components located inside the aperture cover.

[0020] In an optional embodiment, the aperture cover further includes a matte layer, which covers the cover plate. A buffer layer is arranged around the periphery of the matte layer, and the buffer layer protrudes from the surface of the matte layer away from the cover plate. In this case, on the one hand, the matte layer can scatter, reflect or absorb the incident light to achieve the effect of matting, so that the outer surface of the variable aperture seen by the user is basically black, thereby meeting the appearance design requirements. On the other hand, since the buffer layer protrudes from the surface of the matte layer away from the cover plate, the matte layer can be protected, and the probability of wear or shedding of the matte layer surface can be reduced during the assembly, use or reliability testing of the variable aperture.

[0021] In an optional embodiment, the fixing seat is a plastic part, and the magnetic conductive sheet is embedded in the plastic part. The magnetic conductive sheet is welded to the metal cover. In this way, the reliability of the connection between the fixing seat and the entire aperture cover can be improved, and the probability of the fixing seat and the aperture cover being separated can be reduced.

[0022] In an optional embodiment, the variable aperture further includes a flexible circuit board, which is arranged around the side wall of the fixing seat. The magnetic conductive sheet and the metal cover are grounded on the flexible circuit board. For example, a portion of the magnetic conductive sheet can be electrically connected to a copper leakage area for grounding on the flexible circuit board. When the magnetic conductive sheet and the metal cover are welded, the magnetic conductive sheet and the metal cover can be grounded on the above-mentioned flexible circuit board, thereby reducing electromagnetic interference.

[0023] In an optional embodiment, a first limit column avoidance hole can be provided on the metal cover in the aperture cover, and the end of the first limit column away from the fixed seat can be located in the above-mentioned first limit column avoidance hole. At this time, there can be a gap between the end of the first limit column away from the fixed seat and the bottom of the first limit column avoidance hole, so as to avoid structural interference between the first limit column and the metal cover. In addition, a second limit column avoidance hole can be provided on the metal cover in the aperture cover, and the end of the sliding guide hole away from the fixed seat can be located in the above-mentioned second limit column avoidance hole. The technical effect of the second limit column avoidance hole is the same as described above and will not be repeated here.

[0024] Another aspect of the present application provides a camera module, which includes a lens assembly and any variable aperture as described above, wherein the variable aperture is arranged on the light incident side of the lens assembly. The camera module has the same technical effect as the variable aperture provided in the aforementioned embodiment, which will not be described in detail here.

[0025] Another aspect of the present application provides an electronic device, comprising a housing and any one of the camera modules described above, wherein the camera module is disposed on the housing. The electronic device has the same technical effect as the variable aperture provided by the aforementioned embodiment, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0027] Figure 2 for Figure 1 A structural schematic diagram of a camera module;

[0028] Figure 3 for Figure 2 A schematic diagram of an exploded structure of the camera module;

[0029] Figure 4 for Figure 3 A structural schematic diagram of a variable aperture;

[0030] Figure 5 for Figure 4 A schematic diagram of an exploded structure of a variable aperture;

[0031] Figure 6 for Figure 4 Another exploded structure diagram of the variable aperture in the middle;

[0032] Figure 7 for Figure 3 Another structural diagram of the variable aperture;

[0033] Figure 8 for Figure 4Another exploded structure diagram of the variable aperture in the middle;

[0034] Fig. 9 for Figure 4 Another exploded structure diagram of the variable aperture in the middle;

[0035] Fig.10 for Figure 4 Another exploded structure diagram of the variable aperture in the middle;

[0036] Fig.11 For along Fig. 9 A cross-sectional view obtained by cutting along the dotted line O3-O0-O4 in FIG.

[0037] Fig.12 For along Fig. 9 Another cross-sectional view obtained by cutting along the dotted line O3-O0-O4 in FIG.

[0038] Fig.13 for Fig.12 A schematic diagram of an enlarged structure at B;

[0039] Fig.14 for Fig.12 Another schematic diagram of the enlarged structure at B in the figure;

[0040] Fig.15 For along Fig. 9 A top view obtained from the C direction;

[0041] Fig.16 For along Fig. 9 A cross-sectional view obtained by cutting along the dotted line O4-O0-O5 in FIG.

[0042] Fig.17 for Fig.16 A schematic diagram of an enlarged structure at D in the embodiment;

[0043] Fig.18 For along Fig. 9 Another top view obtained from the C direction;

[0044] Fig.19 For along Fig.18 A cross-sectional view obtained by cutting along the dotted line O6-O7 in FIG.

[0045] Fig. 20 For along Fig.18 A cross-sectional view obtained by cutting along the dotted line O8-O9 in FIG.

[0046] Fig.21 for Figure 4 Another exploded structure diagram of the variable aperture in the middle;

[0047] Fig. 22 for Fig.21 A schematic diagram of the structure of a flexible circuit board and components arranged on the flexible circuit board;

[0048] Fig.23 for Figure 3 Another structural diagram of the variable aperture;

[0049] Fig.24 For along Figure 8 A cross-sectional view obtained by cutting along the dotted line P1-P2 in FIG.

[0050] Fig.25 A schematic diagram of the structure of a fixing base provided in an embodiment of the present application;

[0051] Fig.26 for Figure 3 Another structural diagram of the variable aperture;

[0052] Fig. 27 for Figure 4 Another exploded structure diagram of the variable aperture in the middle;

[0053] Fig.28 A schematic diagram of a variable aperture structure provided for related technologies;

[0054] Fig.29 For along Fig. 27 A bottom view of the aperture cover obtained in the Z direction;

[0055] Fig.30 for Fig.24 An enlarged view of F in FIG.

[0056] Fig.31 A schematic structural diagram of an aperture cover provided in an embodiment of the present application.

[0057] Reference numerals:

[0058] 01-electronic device; 02-display screen; 03-back shell; 04-middle frame; 05-processor; 06-opening; 07-lens cover; 08-camera hole; 09-housing; 10-camera module; 20-variable aperture; 11-lens assembly; 12-motor; 100-aperture hole; 13-filter; 14-circuit board; 15-image sensor; 21-fixed seat; 22-aperture cover; 23-rotating bracket; 24-blade; 2 111-first avoidance groove; 2112-second avoidance groove; 2113-third avoidance groove; 2311-first lug; 2312-second lug; 2313-third lug; 2314-annular portion; 2401-rotation hole; 2402-sliding guide hole; 2101-first limiting column; 2301-second limiting column; 25-gasket; 102-second light transmission hole; 201-first rolling element; 202-second rolling element; 20 3-third rolling element; 211-first V-shaped groove; 212-second V-shaped groove; 213-first receiving groove; 231-third V-shaped groove; 232-fourth V-shaped groove; 233-second receiving groove; 2001-first track; 2002-second track; 2003-third track; 204-fourth rolling element; 205-fifth rolling element; 26-driving assembly; 261-magnet assembly; 262-coil; 2610-mounting groove; 2620-mounting hole; 27-flexible circuit board; 271-reinforcement plate; 272-position sensor; 273-capacitor; 28-magnetic conductive sheet; 2201-metal cover; 22011-cover plate; 22012-side plate; 101-first light-transmitting hole; 2202-buffer layer; 30-upper cover; 21011-first limit column avoidance hole; 22021-connecting column; 23011-second limit column avoidance hole; 2203-matt layer. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0060] In the following, the terms "first", "second", etc. are used only for convenience of description and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0061] In addition, in the embodiments of the present application, directional terms such as "up", "down", "lateral", "longitudinal", "horizontal" and "vertical" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to changes in the orientation of the components in the drawings.

[0062] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed mechanical connection, a detachable mechanical connection, or an integrated one; or, "connection" can be a direct connection or an indirect connection through an intermediate medium.

[0063] In addition, unless otherwise clearly specified and limited, the term "electrical connection" should be understood in a broad sense. For example, "electrical connection" can be a direct electrical connection, for example, physical contact and electrical conduction between two components. It can also be understood as the electrical connection between different components in the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals to transmit electrical signals; or, "electrical connection" can be an indirect electrical connection between two components through an intermediate medium; or, "electrical connection" can be an electrical connection between two components in an air / non-contact manner, for example, two components are electrically connected by capacitive coupling to transmit electrical signals.

[0064] In the embodiments of the present application, the descriptions "vertical" and "parallel" respectively represent approximately vertical and approximately parallel within a certain error range, and the error range may be a range where the deviation angle is less than or equal to 5°, 8° or 10° relative to the absolute vertical and absolute parallel, respectively, and no specific limitation is made here.

[0065] In the embodiments of the present application, directional terms such as "up", "down", "left" and "right" may be defined including but not limited to the orientation relative to the schematic placement of the components in the drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly according to the change of the orientation of the components in the drawings.

[0066] In the drawings of the embodiments of the present application, components are represented by guide lines with arrows; parts are represented by guide lines only; and hollow structures such as openings and holes are represented by guide lines with wavy lines at the ends.

[0067] The embodiment of the present application provides an electronic device, which may have a display function. The electronic device may be applied to various communication systems or communication protocols, such as: Bluetooth (BT) communication technology, global positioning system (GPS) communication technology, global system of mobile communication (GSM) communication technology, wireless fidelity (WiFi) communication technology, wideband code division multiple access wireless (WCDMA) communication technology, long term evolution (LTE), 5G communication technology and other future communication technologies.

[0068] The electronic device in the embodiment of the present application may be a mobile phone, a tablet computer (pad), a laptop computer, a smart home, a smart wearable device (e.g., a smart watch, a smart bracelet, smart glasses, a smart helmet), a virtual reality (VR) electronic device, an augmented reality (AR) electronic device, etc. The electronic device may also be a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an electronic device in a 5G network, or an electronic device in a public land mobile communication network (PLMN) to be evolved in the future, etc., and the embodiment of the present application does not limit this.

[0069] In some embodiments, in order to enable the above electronic device to realize the display function, such as Figure 1 As shown, the electronic device 01 provided in the embodiment of the present application may include a display screen 02, a rear shell 03 located on the back of the display screen 02 (arranged opposite to the display surface of the display screen 02), and a middle frame 04 located between the display screen 02 and the rear shell 03. The middle frame 04 can support the display screen 02.

[0070] The display screen 02 can be a liquid crystal display (LCD), an organic light emitting diode (OLED) display screen, a micro or mini light-emitting diode (light-emitting diode) display screen, or a quantum dot light-emitting diode (QLED) display screen, etc. The present application does not limit the types of the above display screens.

[0071] The electronic device 01 may further include a processor 05 electrically connected to the display screen 02, and the processor 05 may be disposed on a side of the middle frame 04 away from the display screen 02. The rear housing 03 is buckled on the middle frame 04, so that an installation space is formed between the rear housing 03 and the middle frame 04 for accommodating the processor 05, a battery and other devices. The processor 05 may provide display data to the display screen 02 to drive the display screen 02 to display images.

[0072] For example, the processor 05 may include one or more processing units, for example, the processor may include an application processor (AP), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0073] In addition, the electronic device 01 may also include a gyro sensor, a hall sensor, an external memory interface, an internal memory, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a mobile communication module, a wireless communication module, an audio module, a speaker, a receiver, a microphone, an earphone interface, a sensor module, a button, and a camera, etc., which are electrically connected to the processor 05. The sensor module may include a pressure sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, and a bone conduction sensor, etc.

[0074] In some embodiments, in order to enable the electronic device 01 to realize image acquisition, that is, shooting function, the electronic device 01 provided in the embodiment of the present application may further include a camera module 10, which may be a front camera module or a rear camera module. For example, the front camera module or the rear camera module may include multiple Figure 1 The camera module 10 shown. Taking the rear camera module as an example, the rear shell 03 is connected to the middle frame 04 to form a housing 09, and the camera module 10 is arranged on the housing 09. The rear shell 03 is provided with an opening 06 for exposing part of the camera module 10. In addition, the electronic device 01 also includes a lens cover 07, which is buckled on the camera module 10 to protect the camera module 10. The lens cover 07 has a camera hole 08 for exposing the lens of the camera module 10.

[0075] The camera module 10 may be one or more of a standard camera module, a telephoto camera module, a wide-angle camera module, an ultra-telephoto camera module, and an ultra-wide-angle camera module. The present application does not limit the number of camera modules 10. Figure 1 The following description is made by taking the example that the rear camera module includes three camera modules 10 .

[0076] The structure of the camera module 10 is described below by way of example. Figure 2 As shown, the camera module 10 may include a variable aperture 20, a lens assembly 11, and a motor 12. For ease of description, an XYZ coordinate axis is established in the figure, wherein the Z direction may be the direction of the optical axis O1-O2 of the variable aperture 20. The XY plane formed by the X direction and the Y direction may be perpendicular to the direction of the optical axis O1-O2 of the variable aperture 20.

[0077] Based on this, the lens assembly 11 may include one or more optical lenses, so that the lens assembly 11 with the optical lenses can use the refraction principle of the optical lenses to converge the light of the object to be photographed onto the focal plane of the camera module 10 for imaging. The variable aperture 20 is arranged on the light incident side of the lens assembly 11. The variable aperture 20 has an aperture hole 100 with adjustable aperture, and the amount of external light entering the camera module 10 can be adjusted by changing the aperture size of the aperture hole 100.

[0078] In addition, the motor 12 can drive the lens assembly 11 to move along the Z direction to achieve auto focus (AF). Alternatively, for example, the motor 12 can also drive the lens assembly 11 to move in the XY plane or rotate around the optical axis O1-O2 of the lens assembly 11 to achieve optical image stabilization.

[0079] On this basis, in order to enable the camera module 10 to perform photoelectric conversion on the light incident into the camera module 10 to generate image information, continue as follows Figure 3 As shown, the camera module 10 may further include a filter 13, an image sensor 15, and a circuit board 14. The image sensor 15 is disposed on the circuit board 14, and the image sensor 15 is coupled to the circuit board 14, so that the image sensor 15 can communicate with the processor 05 (such as Figure 1 For example, the circuit board 14 may be a PCB or a flexible printed circuit (FPC), which is not limited in the present application.

[0080] The filter 13 is disposed on the light incident side of the image sensor 15. For example, the filter 13 may be an infrared filter, which may filter out infrared light in the ambient light and transmit visible light. Alternatively, for example, the filter 13 may be a dual-bandpass filter, which may select two bands in the ambient light to pass, such as visible light and infrared light, or visible light and ultraviolet light, or ultraviolet light and infrared light.

[0081] In addition, the image sensor 15 is disposed at the focal plane of the camera module 10 so as to receive the light image of the object gathered by the lens assembly 11. For example, the image sensor 15 may be a CIS or a charge coupled device (CCD) image sensor, which is not limited in the present application.

[0082] From the above, we can see that Figure 3 The variable aperture 20 shown can adjust the amount of external light entering the camera module 10. The structure of the variable aperture 20 is illustrated below. Figure 4 As shown, the variable aperture 20 includes a base 21 and an aperture case 22. The aperture case 22 is disposed on the base 21, and the aperture case 22 can wrap a part of the side wall of the base 21, and the aperture case 22 is connected to the base 21.

[0083] On this basis, if Figure 5As shown, the variable aperture 20 may further include a rotating support (carrier) 23 and a plurality of blades 24. The rotating support 23 and the blades 24 are located in the aperture cover 22. Since the aperture cover 22 wraps a portion of the side wall of the fixed seat 21 and is connected to the fixed seat 21, the aperture cover 22 may protect the fixed seat 21, the rotating support 23 and the blades 24 covered thereon. During the assembly, use or reliability test of the variable aperture 20, collisions between the fixed seat 21, the rotating support 23 and the blades 24 and the external components of the variable aperture 20 are avoided.

[0084] In addition, the rotating bracket 23 is located in the fixed seat 21, and the rotating bracket 23 can be rotatably connected to the fixed seat 21. Therefore, the rotating bracket 23 can be used as a rotor in the variable aperture 20. Figure 5 The arc arrow direction shown rotates relative to the fixed seat 21 as a stator. In addition, a plurality of blades 24 are arranged on the rotating bracket 23, and the blades 24 can be slidably connected to the rotating bracket 23, and the blades 24 can also be rotatably connected to the fixed seat 21. The plurality of blades 24 are distributed in an annular shape to surround the aperture 100.

[0085] In order to dispose the rotating bracket 23 in the fixing seat 21, in some embodiments of the present application, such as Figure 6 As shown, the rotating bracket 23 may include an annular portion 2314 and a first lug 2311, a second lug 2312 and a third lug 2313 disposed on the side wall of the annular portion 2314. The first lug 2311, the second lug 2312 and the third lug 2313 may all be connected to the annular portion 2314. The annular hollow area of ​​the annular portion 2314 may be connected to the aperture hole 100 (such as Figure 5 As shown in the figure, the first lug 2311, the second lug 2312 and the third lug 2313 can be evenly distributed on the side wall of the annular portion 2314.

[0086] In addition, continue as Figure 6 As shown, the fixing seat 21 may be an annular structure, and the annular hollow area of ​​the fixing seat 21 may be aligned with the aperture hole 100 (eg, Figure 5 In addition, the side wall of the fixing seat 21 is provided with a first avoidance groove 2111, a second avoidance groove 2112 and a third avoidance groove 2113. Based on this, as shown in FIG. Figure 7 As shown, the annular portion 2314 of the rotating bracket 23 can be located in the fixed seat 21. In this way, the thickness of the rotating bracket 23 and the fixed seat 21 (along the Z direction) can overlap, thereby achieving the purpose of reducing the thickness of the variable aperture 20.

[0087] In addition, if Figure 7As shown, the first lug 2311 of the rotating bracket 23 is located in the first avoidance groove 2111, and the first lug 2311 may have a fourth gap H4 with the side wall of the first avoidance groove 2111. The second lug 2312 of the rotating bracket 23 is located in the second avoidance groove 2112, and the second lug 2312 may have a fifth gap H5 with the groove wall of the second avoidance groove 2112. Similarly, the third lug 2313 of the rotating bracket 23 is located in the third avoidance groove 2113, and the third lug 2313 may have a sixth gap H6 with the groove wall of the third avoidance groove 2113. The fourth gap H4, the fifth gap H5 and the sixth gap H6 may be the same or different, and this application does not limit this.

[0088] In this way, by providing the first avoidance groove 2111, the second avoidance groove 2112 and the third avoidance groove 2113 respectively matched with the first lug 2311, the second lug 2312 and the third lug 2313 of the rotating bracket 23 on the fixed seat 21, the rotation of the rotating bracket 23 can be limited in the XY plane (the surface perpendicular to the optical axis). For example, the sum of the gaps between the side walls on the opposite sides of the avoidance groove and the lugs in the avoidance groove, for example, the sum of the gaps between the first lug 2311 and the two side walls of the first avoidance groove 2111, that is, 2×H4, can be the rotation stroke of the rotating bracket 23 when it rotates relative to the fixed seat 21.

[0089] The above is an example of the rotating bracket 23 having three lugs. In other embodiments of the present application, the rotating bracket 23 may have one, two or more than three lugs. The present application does not limit the number of lugs. The number of avoidance grooves provided on the fixing seat 21 is consistent with the number of lugs.

[0090] For the convenience of description, the following examples are all taken as an example that the rotating bracket 23 has three lugs, namely the first lug 2311, the second lug 2312 and the third lug 2313, and the fixed seat 21 is provided with three avoidance grooves, namely the first avoidance groove 2111, the second avoidance groove 2112 and the third avoidance groove 2113. In addition, the above examples are taken as an example that a part of the rotating bracket 23, such as the annular portion 2314, is located in the fixed seat 21, and the manner in which the rotating bracket 23 is disposed in the fixed seat 21 is described. In other embodiments of the present application, the entire rotating bracket 23 can also be disposed in the fixed seat 21.

[0091] In addition, in order to enable the blade 24 to be slidably connected to the rotating bracket 23 and to enable the blade 24 to be rotatably connected to the fixing base 21, the variable aperture 20 may further include: Figure 8The first limiting column 2101 and the second limiting column 2301 are shown. The first limiting column 2101 can be arranged on the surface of the fixing seat 21 facing the blade 24, and the first limiting column 2101 is connected to the fixing seat 21. The second limiting column 2301 is arranged on the surface of the rotating bracket 23 facing the blade 24, and the second limiting column 2301 is connected to the rotating bracket 23.

[0092] In this case, continue as Figure 8 As shown, each blade 24 may be provided with a rotation hole 2401 and a sliding guide hole 2402. The first limiting column 2101 connected to the fixing seat 21 may be located in the rotation hole 2401, so that the blade 24 rotates around the first limiting column 2101, thereby realizing the rotation connection between the blade 24 and the fixing seat 21. In addition, the second limiting column 2301 connected to the rotating bracket 23 may extend into the sliding guide hole 2402 and slide along the sliding guide hole 2402, thereby realizing the sliding connection between the blade 24 and the rotating bracket 23.

[0093] In this way, during the rotation of the rotating bracket 23 relative to the fixing base 21, the second limiting column 2301 on the rotating bracket 23 will move along the sliding guide hole 2402 (such as Figure 8 As shown in FIG. 2 , the blades 24 are moved so as to push the blades 24 to rotate along the axis of the first limiting column 2101. As the blades 24 move, the size of the aperture 100 changes accordingly. Figure 8 The two ends of the aperture 100 are respectively the limit positions of the second limit column 2301. When the second limit column 2301 slides to any one of the above two limit positions, the aperture of the aperture hole 100 can be changed to the maximum aperture or the minimum aperture.

[0094] Based on this, the aperture hole 100 can control the incident light to the lens assembly 11 (such as Figure 3 For example, the minimum aperture of the aperture hole 100 can match the first limit aperture gear of the variable aperture 20, such as the minimum aperture gear. At this time, the light flux entering the lens assembly 11 through the variable aperture 20 can be minimized. Conversely, in some embodiments of the present application, the maximum aperture of the aperture hole 100 can match the second limit aperture gear of the variable aperture 20, such as the maximum aperture gear. At this time, the light flux entering the lens assembly 11 through the variable aperture 20 can be maximized.

[0095] Or, in other embodiments of the present application, Fig. 9As shown, the variable aperture 20 may further include a gasket (soma) 25, which is stacked on the side of the plurality of blades 24 facing the fixed seat 21. A second light-transmitting hole 102 is provided on the gasket 25, and the second light-transmitting hole 102 is connected to the aperture hole 100. The aperture of the second light-transmitting hole 102 may match the second limit aperture gear of the variable aperture 20, such as the maximum aperture gear. At this time, relative to the edge shape of the aperture hole 100 with the maximum aperture surrounded by the plurality of blades 24, the edge shape of the second light-transmitting hole 102 is closer to an ideal circle. When the aperture hole 100 is in the state of the maximum aperture, the blades 24 may be located outside the edge of the second light-transmitting hole 102, thereby avoiding blocking the second light-transmitting hole 102.

[0096] Based on this, in order to make the rotating bracket 23 rotate relative to the fixed seat 21, the center of the aperture hole 100, that is, the optical axis O1-O2 of the variable aperture 20 (such as Figure 2 As shown) rotate, Fig.10 As shown, the fixing seat 21 is provided with a first V-shaped groove 211 and a second V-shaped groove 212. The rotating bracket 23 is provided with a third V-shaped groove 231 and a fourth V-shaped groove 232.

[0097] For example, continue as Fig.10 As shown, when the rotating bracket 23 has the first lug 2311 and the second lug 2312, and the fixed seat 21 is provided with the first avoidance groove 2111 and the second avoidance groove 2112, the first V-shaped groove 211 can be provided on the bottom surface of the first avoidance groove 2111, and the second V-shaped groove 212 can be provided on the bottom surface of the second avoidance groove 2112. In addition, the third V-shaped groove 231 is provided on the surface of the first lug 2311 facing the fixed seat 21, and the fourth V-shaped groove 232 can be provided on the surface of the second lug 2312 facing the fixed seat 21. In this way, the size space of the area where the lugs and avoidance grooves are located can be fully utilized, so that the structure of the entire variable aperture 20 is more compact, which is conducive to the miniaturization design of the product.

[0098] On this basis, if Fig.11 (along Fig. 9 As shown in the cross-sectional view obtained by cutting along the dotted line O3-O0-O4 in FIG. 1 , the first V-shaped groove 211 on the fixed seat 21 and the third V-shaped groove 231 on the rotating bracket 23 enclose the first track 2001. The second V-shaped groove 212 on the fixed seat 21 and the fourth V-shaped groove 232 on the rotating bracket 23 enclose the second track 2002. In addition, as shown in FIG. Fig.12 (along Fig. 9As shown by the dotted lines O3-O0-O4 in the figure, the variable aperture 20 may further include a first rolling member 201 and a second rolling member 202. Along the optical axis O1-O2 direction of the variable aperture 20, the first rolling member 201 and the second rolling member 202 may be located between the fixed seat 21 and the rotating bracket 23. For example, any one of the first rolling member 201 and the second rolling member 202 may be a ball or a roller, which is not limited in the present application.

[0099] On this basis, if Fig.13 ( Fig.12 As shown in the enlarged view of point B in FIG. 1 , the first rolling member 201 can be located in the first track 2001, and the first rolling member 201 abuts against the side wall a1 of the first V-shaped groove 211 and the side wall a2 of the third V-shaped groove 231, that is, the first rolling member 201 and the side wall a1 of the first V-shaped groove 211 and the side wall a2 of the third V-shaped groove 231 are in a zero-matching state. Fig.12 As shown, the second rolling member 202 can be located in the second track 2002. The second rolling member 202 can be connected to the second V-shaped groove 212 (such as Fig.11 The side wall of the second V-shaped groove 212 (as shown) abuts against the side wall of the fourth V-shaped groove 232, that is, the second rolling element 202 can be in a zero-matching state with the side wall of the second V-shaped groove 212 and the side wall of the fourth V-shaped groove 232.

[0100] The V-shaped groove in the embodiment of the present application refers to two opposite side walls of the groove body (for example, Fig.13 In the embodiment, the two opposite side walls a1) of the first V-shaped groove 211 are inclined, that is, there is an angle between the two side walls. In addition, the distance between the two opposite side walls is larger at the groove opening and smaller at the bottom of the groove, so that the cross section of the groove (parallel to the ZY plane) is "V" shaped, or Fig.14 The above is only an example of a V-shaped groove and does not constitute a limitation on the V-shaped groove structure, as long as the groove body of the V-shaped groove is inclined relative to the two side walls, and the distance between the two side walls at the groove body opening is greater than the distance between the two side walls at the groove body bottom.

[0101] Based on this, Fig.15 (along Fig. 9 As shown in the top view obtained by the C direction in FIG. 1 , the first rolling member 201 is used to roll along the first track 2001 with a first arc track S1. The second rolling member 202 is used to roll along the second track 2002 with a second arc track S2. The first arc track S1 and the second arc track S2 are arranged concentrically with respect to the optical axis O1-O2. In this way, the rotating bracket 23 can be rotatably connected to the fixing seat 21 through the first rolling member 201 and the second rolling member 202.

[0102] For example, the first arc trajectory S1 and the second arc trajectory S2 are concentrically arranged about the optical axis O1-O2, which may mean that the center of the first arc trajectory S1 and the center of the second arc trajectory S2 may be on the above-mentioned optical axis Q1-O2. For example, the first arc trajectory S1 and the second arc trajectory S2 may be located in the same plane, in which case the positions of the center of the first arc trajectory S1 and the center of the second arc trajectory S2 on the optical axis Q1-O2 may coincide. Alternatively, the first arc trajectory S1 and the second arc trajectory S2 may be located in different planes, in which case the positions of the center of the first arc trajectory S1 and the center of the second arc trajectory S2 on the optical axis Q1-O2 do not coincide.

[0103] In some embodiments of the present application, the first arc track S1 and the second arc track S2 may be two arcs on the same circle with the vertical projection of the optical axis O1-O2 on the XY plane as the center. In this case, the radius R1 of the first arc track S1 and the radius R2 of the second arc track S2 are the same. At this time, the first track 2001 and the second track 2002 are distributed on the same circle with the vertical projection of the optical axis O1-O2 on the XY plane as the center. That is, the first V-groove 211 and the second V-groove 212 used to form the first track 2001, and the third V-groove 231 and the fourth V-groove 232 used to form the second track 2002, are distributed on the same circle with the vertical projection of the optical axis O1-O2 on the XY plane as the center. In this way. The distances of the first track 2001 and the second track 2002 from the optical axis O1-O2 can be the same, so that the manufacturing process of the variable aperture 20 can be simplified.

[0104] Alternatively, in some other embodiments of the present application, the first arc track S1 and the second arc track S2 may be two arcs on different circles with the vertical projection of the optical axis O1-O2 on the XY plane as the center. In this case, the radius R1 of the first arc track S1 and the radius R2 of the second arc track may be different.

[0105] In summary, the embodiments of the present application provide Fig.10 The variable aperture 20 shown may include a fixed seat 21, a rotating bracket 23, a first rolling member 201 and a second rolling member 202. Based on this, the rotating bracket 23 is located in the fixed seat 21, and along the optical axis O1-O2 direction of the variable aperture 20, the first rolling member 201 and the second rolling member 202 may be located between the fixed seat 21 and the rotating bracket 23. In addition, the fixed seat 21 is provided with a first V-shaped groove 211 and a second V-shaped groove 212, and the rotating bracket 23 is provided with a third V-shaped groove 231 and a fourth V-shaped groove 232. Fig.11As shown, the first V-shaped groove 211 on the fixed seat 21 and the third V-shaped groove 231 on the rotating bracket 23 surround the first track 2001 . The second V-shaped groove 212 on the fixed seat 21 and the fourth V-shaped groove 232 on the rotating bracket 23 surround the second track 2002 .

[0106] Based on this, Fig.15 As shown, the first rolling member 201 is located in the first track 2001, and the first rolling member 201 abuts against the side wall a1 of the first V-shaped groove 211 and the side wall a2 of the third V-shaped groove 231, so that the first rolling member 201 can roll along the first arc track S1 along the extension direction of the first track 2001. Similarly, the second rolling member 202 can be located in the second track 2002, and the second rolling member 202 can abut against the second V-shaped groove 212 (such as Fig.11 The side wall of the fourth V-shaped groove 232 abuts against the side wall of the fourth V-shaped groove 232, so that the second rolling element 202 can roll along the second arc track S2 along the extension direction of the second track 2002. The rotating bracket 23 can be rotatably connected to the fixing seat 21 through the first rolling element 201 and the second rolling element 202.

[0107] On this basis, since the first arc track S1 and the second arc track S2 are arranged concentrically with respect to the optical axis O1-O2, during the rotation of the rotating bracket 23 relative to the fixed seat 21 through the first rolling element 201 and the second rolling element 202, the rotation track of the rotating bracket 23 can be concentric with the first arc track S1 and the second arc track S2 with respect to the optical axis O1-O2, thereby reducing the probability of eccentricity of the aperture hole 100 of the variable aperture 20. In addition, for the scheme of arranging the ball between the rotor side wall and the stator side wall, the circularity requirements of the rotor side wall and the stator side wall are relatively high. In the present application, along the optical axis O1-O2 direction of the variable aperture 20, the first rolling element 201 and the second rolling element 202 can be located between the fixed seat 21 and the rotating bracket 23, so that there is no need to have a high requirement for the circularity of the side wall of the fixed seat 21 and the side wall of the rotating bracket 23, which is more conducive to reducing the probability of eccentricity of the aperture hole 100 of the variable aperture 20.

[0108] In addition, in order to improve the reliability of the variable aperture 20, in some embodiments of the present application, the following Fig.10As shown, the fixed seat 21 is further provided with a first receiving groove 213, and the rotating bracket 23 is further provided with a second receiving groove 233. In some embodiments of the present application, when the rotating bracket 23 has a third lug 2313 and the fixed seat 21 is provided with a third avoidance groove 2113, the first receiving groove 213 can be provided on the bottom surface of the third avoidance groove 2113, and the second receiving groove 233 can be provided on the surface of the third lug 2313 facing the fixed seat 21. Similarly, the size of the area where the third lug 2313 and the third avoidance groove 2113 are located can be effectively utilized to achieve the effect of improving the space utilization rate of the variable aperture 20.

[0109] Based on this, Fig.16 (along Fig. 9 As shown in the cross-sectional view obtained by cutting along the dotted line O4-O0-O5 in FIG. 2 , the first receiving groove 213 and the second receiving groove 233 surround the third track 2003. At least one of the first receiving groove 213 and the second receiving groove 233 is a first U-shaped groove. For example, Fig.17 ( Fig.16 As shown in the enlarged view at point D in FIG, the first accommodating groove 213 is a fifth V-shaped groove, and the second accommodating groove 233 is a first U-shaped groove.

[0110] The U-shaped groove in the embodiment of the present application refers to two opposite side walls of the groove body (for example, Fig.17 In the embodiment, the second receiving groove 233, namely the two opposite side walls a3 of the first U-shaped groove, are arranged in parallel, so that the cross section of the groove body (parallel to the ZY plane) is in a "U" shape.

[0111] Based on this, the variable aperture 20 may also include: Fig.17 The third rolling member 203 shown. The third rolling member 203 can be located in the third track 2003, and the third rolling member 203 abuts against the bottom surface a4 of the first U-shaped groove (i.e., the second receiving groove 233) (i.e., zero matching). And the third rolling member 203 can have a first gap H1 between at least one side wall a3 of the first U-shaped groove (i.e., the second receiving groove 233), and the third rolling member 203 is used to roll in the third track 2003. Among them, along the optical axis direction (i.e., the Z direction), the third rolling member 203 is located between the fixed seat 21 and the rotating bracket 23, so that the rotating bracket 23 can also rotate relative to the fixed seat 21 through the third rolling member 203.

[0112] In this case, on the one hand, continuing Fig.17 As shown in FIG. 1 , since the third rolling element 203 abuts against the bottom surface a4 of the first U-shaped groove (ie, the second receiving groove 233), the variable aperture 20 is not affected by the vibration during assembly, use or reliability testing. Fig.17When a force F is applied downward in the direction of the arrow, the rotating bracket 23 can be supported by the third rolling member 203 abutting against the bottom surface a4 of the first U-shaped groove, so as to disperse the force F acting on the first rolling member 201 and the second rolling member 202, thereby increasing the service life of the first rolling member 201 and the second rolling member 202, and ultimately achieving the effect of improving the reliability of the variable aperture 20.

[0113] On the other hand, from the above, we can see that Fig.12 The first rolling element 201 and Fig.11 As shown, the side walls of the first V-shaped groove 211 and the side walls of the third V-shaped groove 231 are in abutment with each other. Fig.12 The second rolling element 202 in Fig.11 The side walls of the second V-shaped groove 212 and the side walls of the fourth V-shaped groove 232 are in contact with each other. Fig.15 As shown, the first rolling member 201 rolls along the first track 2001, and the second rolling member 202 rolls along the second track 2002. Based on this, by setting the first gap H1 between the third rolling member 203 and at least one side wall a3 of the first U-shaped groove (i.e., the second receiving groove 233), the first gap H1 can allow the third rolling member 203 to have a certain activity space on the surface perpendicular to the optical axis (i.e., in the XY plane), thereby reducing the possibility of interference and avoiding the occurrence of a jamming phenomenon between the rotating bracket 23 and the fixing seat 21.

[0114] The above is based on Fig.17 In the example, the first receiving groove 213 is the fifth V-shaped groove, and the second receiving groove 233 is the first U-shaped groove. In this way, the third rolling element 203 is more likely to abut against the side wall of the fifth V-shaped groove (i.e., the first receiving groove 213) under the action of gravity, so that the third rolling element 203 can roll along the fifth V-shaped groove (i.e., the first receiving groove 213) more easily. For example, the fifth V-shaped groove (i.e., the first receiving groove 213) can be concentric with the third V-shaped groove 231 and the fourth V-shaped groove 232.

[0115] Alternatively, in some other embodiments of the present application, the first accommodating groove 213 and the second accommodating groove 233 can both be U-shaped grooves, or the first accommodating groove 213 can be a U-shaped groove and the second accommodating groove 233 can be a V-shaped groove. The technical effects of the above-mentioned U-shaped groove and V-shaped groove are the same as described above and will not be repeated here.

[0116] The above is an example of improving the reliability of the variable aperture 20 by taking the third rolling element 203 disposed in the third track 2003 and abutting against a part of the rotating bracket 23 as an example. In other embodiments of the present application, the variable aperture 20 may also include: Fig.18 (along Fig. 9 The fourth rolling member 204 and the fifth rolling member 205 are shown in the top view obtained by the C direction in FIG. The present application does not limit the number of the fourth rolling member 204 and the fifth rolling member 205. Fig.18 The description is made by taking a fourth rolling element 204 and a fifth rolling element 205 as an example.

[0117] The fourth rolling element 204 may be located in the first track 2001 and arranged with the first rolling element 201 along the extension direction of the first track 2001. The fifth rolling element 205 may be located in the second track 2002 and arranged with the second rolling element 202 along the extension direction of the second track 2002.

[0118] In addition, if Fig.19 (along Fig.18 As shown in the cross-sectional view obtained by cutting along the dotted line O6-O7 in FIG. 2 , the fourth rolling element 204 may have a second gap H2 with at least one side wall a2 of the third V-shaped groove 231 on the rotating bracket 23 (or at least one side wall of the first V-shaped groove 211 on the fixing seat 21). In this way, the fourth rolling element 204 may have a certain movable space in the third V-shaped groove 231 (or the first V-shaped groove 211), so as not to affect the first rolling element 201 (such as the first rolling element 201) located in the same first track 2001. Fig.18 The rolling of the rotating bracket 23 and the fixing base 21 can be reduced to reduce the probability of jamming between the rotating bracket 23 and the fixing base 21.

[0119] In addition, during the assembly, use or reliability test of the variable aperture 20, when it is subjected to Fig.19 When the force F is applied downward in the direction of the arrow, the rotating bracket 23 moves downward, so that the side wall a2 of the third V-shaped groove 231 (or the side wall of the first V-shaped groove 211) abuts against the fourth rolling element 204. In this way, the fourth rolling element 204 can support the rotating bracket 23, thereby dispersing the force F applied to the first rolling element 201, reducing the force deformation of the rotating bracket 23 and the first rolling element 201, and increasing the service life of the first rolling element 201, thereby achieving the effect of improving the reliability of the variable aperture 20.

[0120] And, if Fig. 20 (along Fig.18 As shown in the cross-sectional view obtained by cutting along the dotted line O8-O9 in FIG. 1 , the fifth rolling element 205 can have a third gap H3 with at least one side wall a5 of the fourth V-shaped groove 232 on the rotating bracket 23 (or at least one side wall of the second V-shaped groove 212 on the fixing seat 21). Similarly, in this way, the second rolling element 202 (such as the second rolling element 202) located in the same second track 2002 will not be affected. Fig.18In addition, during the assembly, use or reliability test of the variable aperture 20, the fifth rolling element 205 can abut against the side wall a5 of the fourth V-shaped groove 232 on the rotating bracket 23 (or the side wall of the second V-shaped groove 212 on the fixing seat 21). The fifth rolling element 205 can support the rotating bracket 23 and increase the service life of the second rolling element 202.

[0121] On this basis, if Fig.21 As shown, in order to drive the rotating bracket 23 to rotate relative to the fixed seat 21 along the optical axis O1-O2, the variable aperture 20 may include at least one driving component 26. For example, Fig.21 The variable aperture 20 includes two driving components 26 as an example for illustration. The driving component 26 may include a magnet component 261 and a coil 262 .

[0122] In some embodiments of the present application, continue as Fig.21 As shown, the magnet assembly 261 can be arranged on the surface of the side wall of the annular portion 2314 of the rotating bracket 23 facing the fixed seat 21. For example, a mounting groove 2610 can be opened on the annular portion 2314, and the magnet assembly 261 is arranged in the mounting groove 2610 and connected to the rotating bracket 23. In addition, the variable aperture 20 can also include a flexible printed circuit (FPC) 27, and the flexible printed circuit 27 can be arranged around the peripheral side of the fixed seat 21. The coil 262 can be arranged on the flexible printed circuit 27 and electrically connected to the flexible printed circuit 27, so that the coil 262 is powered by the flexible printed circuit 27.

[0123] For example, Fig. 22 As shown in FIG. 2 , when the flexible circuit board 27 is bent into a ring shape, the coil 262 can be disposed on the inner side of the flexible circuit board 27. Fig.23 As shown, the fixing base 21 is provided with a mounting hole 2620. When the flexible circuit board 27 ( Fig. 22 When the coil 262 is wound around the peripheral side of the fixing seat 21, the coil 262 can be arranged in the mounting hole 2620. Fig.24 (along Figure 8 As shown in the cross-sectional view obtained by cutting along the dotted line P1-P2 in FIG. 2 , the coil 262 can be arranged relative to the position of the magnet assembly 261 installed on the rotating bracket 23.

[0124] Continue as Fig.21 As shown, the variable aperture 20 may further include a reinforcement plate 271, a position sensor 272 and a capacitor 273. Fig. 22As shown, the reinforcing plate 271 can be arranged outside the flexible circuit board 27 and opposite to the position of the coil 262. That is, the vertical projection of the coil 262 on the flexible circuit board 27 overlaps with the vertical projection of the reinforcing plate 271 on the flexible circuit board 27. For example, the hardness of the reinforcing plate 271 can be greater than the hardness of the flexible circuit board 27, so that the coil 262 can be supported and the reliability of the electrical connection between the coil 262 and the flexible circuit board 27 can be ensured. For example, the reinforcing plate 271 can be a steel plate or a hard plastic plate.

[0125] The position sensor 272 may be a sensor or chip capable of realizing position detection, so as to detect the rotation position of the rotating bracket 23, so as to achieve accurate control of the aperture hole 100 (such as Fig. 9 For example, the position sensor 272 may be a Hall device. In addition, the capacitor 273 is used to filter the signal input to the position sensor 272 to remove stray signals. In some embodiments of the present application, Fig. 22 As shown, when the variable aperture 20 has two coils 262 , the position sensor 272 and the capacitor 273 may not be disposed in the space enclosed by the two coils 262 , thereby achieving the effect of improving the utilization rate of the internal layout space of the variable aperture 20 .

[0126] In this case, by energizing the coil 262, the magnetic field generated by the coil 262 and the magnetic field generated by the magnet assembly 261 interact to generate a force, and the force can drive the magnet assembly 261 to drive the rotating bracket 23 to rotate relative to the fixed seat 21. Since the magnet assembly 261 is arranged on the rotating bracket 23 as a mover, the variable aperture 20 can be a moving magnetic variable aperture.

[0127] For example, the magnet assembly 261 may include one or more magnets. When the magnet assembly 261 includes multiple magnets, the multiple magnets may be arranged in a Halbach array structure. In this way, the surface of the magnet assembly 261 with the Halbach array structure facing the coil 262 has a larger magnetic field strength, so that when a small current flows through the coil 262, the rotating bracket 23 connected to the magnet assembly 261 can be pushed, thereby increasing the driving force on the rotating bracket 23 and reducing power consumption.

[0128] The above is an example of the variable aperture 20 being a moving magnet variable aperture. In other embodiments of the present application, the variable aperture 20 may also be a moving coil variable aperture. In this case, the coil 262 may be disposed on a rotating bracket 23 serving as a rotor, and the magnet assembly 261 may be disposed on a fixed seat 21 serving as a stator. The present application does not limit the type of the variable aperture 20. For the sake of convenience, the following examples are all based on the example of the variable aperture being the moving magnet type.

[0129] On this basis, in order to prevent the rotating bracket 23 from being separated from the fixing base 21 during the rotation process, in other embodiments of the present application, such as Fig.24 As shown, the variable aperture 20 may further include a magnetic conductive sheet 28. The magnetic conductive sheet 28 may be connected to the fixing seat 21, and the magnetic conductive sheet 28 is used to be adsorbed with the magnet assembly 261 along the optical axis O1-O2 direction.

[0130] For example, the magnetic conductive sheet 28 may contain a metal that can attract ferromagnetic substances, such as iron, nickel, cobalt, etc. For example, the magnetic conductive sheet 28 may be a stainless steel sheet, referred to as a steel sheet. The arrangement of the metal material that can be adsorbed by the magnetic substance in the following embodiments of the present application is the same as described above, and will not be repeated here.

[0131] In this way, continue as Fig.24 As shown, when the rotating bracket 23 is rotating, the magnetic assembly 261 is adsorbed by the magnetic conductive sheet 28 along the optical axis O1-O2 direction, which can reduce the separation of the rotating bracket 23 and the fixing base 21 during the rotation of the camera module 10 and improve the reliability of the variable aperture 20.

[0132] For example, Fig.24 As shown, the magnetic conductive sheet 28 is embedded in the fixing seat 21. Based on this, as Fig.25 As shown, the fixing seat 21 can be a plastic part. In some embodiments, the magnetic conductive sheet 28 can be an annular structure, so that the vertical projection of the magnet assembly 261 in the plane perpendicular to the optical axis O1-O2, that is, in the XY plane, can intersect with the vertical projection of the magnetic conductive sheet 28 in the XY plane. In this case, the magnetic conductive sheet 28 and the fixing seat 21 can be formed as an integrated structural member by insert molding. The magnetic conductive sheet 28 can improve the rigidity of the entire integrated structural member.

[0133] Or, as another example, the magnetic conductive sheet 28 may be disposed on both sides or on one side of the vertical projection of the magnet assembly 261 in the XY plane, so that the vertical projection of the magnet assembly 261 in the XY plane may intersect with the vertical projection of the magnetic conductive sheet 28 in the XY plane without overlapping.

[0134] In the case where the magnetic conductive sheet 28 is disposed on one side of the vertical projection of the magnet assembly 261 in the XY plane, when the rotating bracket 23 rotates to drive the aperture hole 100 formed by the movement of the plurality of blades 24 to reach an aperture position, such as the maximum aperture position or the aperture position commonly used by the user, the power supply to the coil 262 can be terminated (i.e., powered off). Under the action of the adsorption force between the magnet assembly 261 and the magnetic conductive sheet 28, the positions of the rotating bracket 23 and the fixing seat 21 can be relatively fixed (in a steady state), achieving the purpose of self-locking the aperture when powered off, thereby reducing power consumption.

[0135] Or, in other embodiments, Fig.26 As shown, the magnetic conductive sheet 28 can be arranged on the bottom surface of the fixed seat 21 away from the rotating bracket 23. In this way, the magnetic conductive sheet 28 can be connected to the fixed seat 21 by a bonding process to simplify the preparation process of the variable aperture 20. The above is an example of the magnetic conductive sheet 28 being annular. In other embodiments of the present application, the vertical projection shape of the magnetic conductive sheet 28 in the XY plane can also be rectangular, polygonal, etc., and the present application does not limit this. For the convenience of explanation, the following examples are all taken as an example that the magnetic conductive sheet 28 is annular and embedded in the fixed seat 21.

[0136] In some embodiments of the present application, Fig. 27 As shown, the variable aperture 20 can be assembled by installing the magnet assembly 261 on the rotating bracket 23 and installing the coil 262 on the flexible circuit board 27. Next, the flexible circuit board 27 with the coil 262 installed is arranged around the peripheral side of the fixed seat 21. The rotating bracket 23 is arranged in the fixed seat 21, and the gasket 25 and a plurality of blades 24 are arranged in sequence on the upper surface of the rotating bracket 23. Finally, the aperture cover 22 is covered on the above-assembled structure, and the aperture cover 22 can be connected to the fixed seat 21, so that the aperture cover 22 can wrap the fixed seat 21, the rotating bracket 23, the flexible circuit board 27, the gasket 25, the blades 24 and other components in the aperture cover 22.

[0137] In related technologies, such as Fig.28 As shown, an upper cover 30 is provided on the fixing seat 21, and the upper cover 30 is in sheet shape. The upper cover 30 does not wrap the fixing seat 21, so after the variable aperture is assembled, used or reliability tested, the upper cover 30 is easy to fall off, which leads to problems such as blade misalignment. In comparison, the aperture cover 22 provided in the present application is not easy to fall off by wrapping the remaining components in the variable aperture 20, which is conducive to improving the reliability of the variable aperture 20.

[0138] On this basis, in some embodiments of the present application, continue as follows Fig. 27As shown, the aperture cover 22 may include a metal cover 2201 and a buffer layer 2202. The metal cover 2201 may include a cover plate 22011 and a side plate 22012 connected to each other. The side plate 22012 may be arranged around the periphery of the cover plate 22011, and the side plate 22012 wraps a portion of the side wall of the fixing seat 21, and the side plate 22012 may be connected to the fixing seat 21. A first light-transmitting hole 101 is provided on the cover plate 22011, and the first light-transmitting hole 101 may be connected to the aperture hole 100. In addition, the buffer layer 2202 may be arranged around the periphery of the first light-transmitting hole 101, and the buffer layer 2202 covers a portion of the cover plate 22011 and the side plate 22012.

[0139] In this way, since the buffer layer 2202 covers the cover plate 22011 and the side plate 22012 of the metal cover 2201, the metal cover 2201 can be protected. When the variable aperture 20 is being assembled, used or reliability tested, when the variable aperture 20 is hit, the aperture cover 22 protects the remaining components of the variable aperture 20, thereby preventing the remaining components from being directly affected by external forces. In addition, the buffer layer 2202 can buffer external forces, reduce the force acting on the metal cover 2201, and further improve the effect of protecting the components inside the aperture cover 22.

[0140] For example, the buffer layer 2202 may be a soft rubber material, such as silicone or thermoplastic urethane (TPU). Alternatively, for another example, the buffer layer 2202 may be foam. Alternatively, it may be a soft plastic sheet. In some embodiments of the present application, the buffer layer 2202 may be bonded to the cover plate 22011 and the side plate 22012 of the metal cover 2201 by bonding.

[0141] Alternatively, in other embodiments of the present application, when the buffer layer 2202 is made of the above-mentioned soft rubber material, the above-mentioned embedded injection molding process can also be used to form the buffer layer 2202 and the metal cover 2201 as an integrated structure. Fig.29 (along Fig. 27 As shown in the bottom view of the aperture cover obtained along the Z direction in FIG, a through hole penetrating the metal cover 2201 may be provided on the metal cover 2201, and during the embedding injection molding process, the soft glue material may flow into the through hole, thereby forming a buffer layer 2202 having a connecting column 22021. The connecting column 22021 penetrates the through hole of the metal cover 2201 and is connected to the metal cover 2201, thereby improving the connection reliability between the buffer layer 2202 and the metal cover 2201.

[0142] On this basis, continue Fig. 27As shown, when the fixing seat 21 is a plastic part and the magnetic conductive sheet 28 is embedded in the plastic part, the magnetic conductive sheet 28 can be welded to the side plate 22012 of the metal cover 2201 in the aperture cover 22. For example, Fig.25 As shown, a portion of the magnetic conductive sheet 28 (for example, at position E) can extend out of the fixing seat 21, and the extended portion can be welded to the metal cover 2201. In this way, the reliability of the connection between the fixing seat 21 and the entire aperture cover 22 can be improved, and the probability of the fixing seat 21 and the aperture cover 22 being separated can be reduced.

[0143] In addition, the variable aperture 20 includes Fig. 27 In the case of the flexible circuit board 27 shown in the figure, a part of the magnetic conductive sheet 28 can be electrically connected to the copper leakage area for grounding on the flexible circuit board 27. When the magnetic conductive sheet 28 and the metal cover 2201 are welded, the magnetic conductive sheet 28 and the metal cover 2201 can be grounded on the above-mentioned flexible circuit board 27. In this way, electromagnetic interference (EMI) can be reduced.

[0144] In addition, if Fig.30 ( Fig.24 As shown in the enlarged view at F in the figure, the first limiting column 2101 connected to the fixing seat 21 can be rotatably connected to the blade 24, so the first limiting column 2101 can pass through the rotation hole 2401 on the blade 24 (as shown in FIG. Figure 8 In this case, continue as Fig.29 As shown, the metal cover 2201 in the aperture cover 22 may be provided with a first limit post avoidance hole 21011, and the first limit post 2101 is away from the fixing seat 21 (such as Fig.30 One end of the first limiting column as shown in the figure can be located in the first limiting column avoidance hole 21011.

[0145] For example, the Fig.29 The first limit post avoidance hole 21011 shown can be formed by removing a portion of the metal cover 2201 through an etching process. Fig.30 As shown in the figure, there may be a gap between one end of the first limiting column 2101 and the bottom of the avoidance hole 21011 of the first limiting column, thereby avoiding structural interference between the first limiting column 2101 and the metal cover 2201.

[0146] Alternatively, for another example, the first limit post avoidance hole 21011 may also penetrate the metal cover 2201. At this time, the first limit post 2101 is away from the fixing seat 21 (such as Fig.30 One end of the first limit column avoidance hole 21011 may be located in the first limit column avoidance hole 21011, and the buffer layer 2202 may block the first limit column avoidance hole 21011.

[0147] Similarly, continue as Figure 8 As shown, the second limiting column 2301 connected to the rotating bracket 23 can pass through the sliding guide hole 2402 on the blade 24, so that the blade 24 is slidably connected to the rotating bracket 23 through the second limiting column 2301. Therefore, the second limiting column 2301 can pass through the sliding guide hole 2402. In this case, continue as Fig.29 As shown, a second limiting column avoidance hole 23011 may be provided on the metal cover 2201 in the aperture cover 22 , and the end of the sliding guide hole 2402 away from the fixing seat 21 may be located in the second limiting column avoidance hole 23011 .

[0148] For example, the Fig.29 The second limiting column avoidance hole 23011 shown can be formed by removing a portion of the metal cover 2201 through an etching process. At this time, the second limiting column 2301 is away from the fixing seat 21 (such as Fig.30 As shown in the figure, there may be a gap between one end of the second limiting column 2301 and the bottom of the second limiting column avoidance hole 23011, thereby avoiding structural interference between the second limiting column 2301 and the metal cover 2201.

[0149] In addition, in order to meet the design requirements of industrial design (ID), such as Fig.31 As shown, the aperture cover 22 may further include a matte layer 2203, and the matte layer 2203 may cover the cover plate 22011. In addition, the buffer layer 2202 may be arranged around the periphery of the matte layer 2203. Moreover, the buffer layer 2202 protrudes from the surface of the matte layer 2203 away from the cover plate 22011. For example, the matte layer 2203 may be a thin film layer or a membrane having a matte effect.

[0150] In this case, on the one hand, the above-mentioned matt layer 2203 can scatter, reflect or absorb the incident light to achieve the effect of matt, so that the outer surface of the variable aperture 20 seen by the user is basically black, thereby meeting the ID design requirements. On the other hand, since the buffer layer 2202 protrudes from the surface of the matt layer 2203 away from the cover plate 22011, the matt layer 2203 can be protected, and the probability of surface wear or shedding of the matt layer 2203 can be reduced during the assembly, use or reliability test of the variable aperture 20.

[0151] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions 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 should be based on the protection scope of the claims.

Claims

1. A variable aperture (20), characterized in that: include: Fixed seat (21); A rotating bracket (23) is located inside the fixing seat (21); A plurality of blades (24) are arranged on the rotating bracket (23); the blades (24) are slidably connected to the rotating bracket (23) and are rotatably connected to the fixing seat (21); the plurality of blades (24) are distributed in an annular shape to surround an aperture hole (100); An aperture cover (22) is disposed on the fixing seat (21) and covers a portion of a side wall of the fixing seat (21); the rotating bracket (23) and the blades (24) are located inside the aperture cover (22); and the aperture cover (22) is connected to the fixing seat (21).

2. The variable aperture (20) according to claim 1, characterized in that: The aperture cover (22) comprises: The cover plate (22011) is provided with a first light-transmitting hole (101), wherein the first light-transmitting hole (101) is connected to the aperture hole (100); The side plate (22012) is arranged around the periphery of the cover plate (22011) and wraps a portion of the side wall of the fixing seat (21); the side plate (22012) is connected to the fixing seat (21).

3. The variable aperture (20) according to claim 2, characterized in that: The cover plate (22011) and the side plate (22012) form an integrated metal cover (2201).

4. The variable aperture (20) according to claim 2 or 3, characterized in that: The aperture cover (22) further comprises a matte layer (2203), wherein the matte layer (2203) covers the cover plate (22011).

5. The variable aperture (20) according to any one of claims 2 to 4, characterized in that: The aperture cover (22) comprises: The buffer layer (2202) is arranged around the periphery of the first light-transmitting hole (101) and covers a portion of the cover plate (22011) and the side plate (22012).

6. The variable aperture (20) according to claim 5, characterized in that: The buffer layer (2202) is arranged around the periphery of the matt layer (2203), and the buffer layer (2202) protrudes from the surface of the matt layer (2203) facing away from the cover plate (22011).

7. The variable aperture (20) according to any one of claims 1 to 6, characterized in that: The fixing seat (21) is provided with a first V-shaped groove (211) and a second V-shaped groove (212); A rotating bracket (23) is located in the fixed seat (21), and a third V-shaped groove (231) and a fourth V-shaped groove (232) are provided on the rotating bracket (23); the first V-shaped groove (211) and the third V-shaped groove (231) surround a first track (2001); the second V-shaped groove (212) and the fourth V-shaped groove (232) surround a second track (2002); A first rolling member (201) is located in the first track (2001), and the first rolling member (201) is used to roll along the first track (2001) in a first arc track; a second rolling member (202) located in the second track (2002); the second rolling member (202) is used to roll along the second track (2002) in a second arc track; the rotating bracket (23) is rotatably connected to the fixed seat (21) via the first rolling member (201) and the second rolling member (202); Wherein, along the optical axis direction of the variable aperture (20), the first rolling element (201) and the second rolling element (202) are clamped between the fixed seat (21) and the rotating bracket (23); The first arc track and the second arc track are arranged concentrically with respect to the optical axis.

8. The variable aperture (20) according to claim 7, characterized in that: The fixing seat (21) is also provided with a first accommodating groove (213); The rotating bracket (23) is also provided with a second accommodating groove (233); wherein the first accommodating groove (213) and the second accommodating groove (233) enclose a third track; and at least one of the first accommodating groove (213) and the second accommodating groove (233) is a first U-shaped groove; The variable aperture (20) further comprises a third rolling member (203), wherein the third rolling member (203) is located in the third track; the third rolling member (203) abuts against the bottom surface of the first U-shaped groove, and has a first gap with at least one side wall of the first U-shaped groove, and the third rolling member (203) is used for rolling in the third track; wherein, along the optical axis direction, the third rolling member (203) is located between the fixed seat (21) and the rotating bracket (23).

9. The variable aperture (20) according to claim 8, characterized in that: The first accommodating groove (213) is a fifth V-shaped groove, and the second accommodating groove (233) is the first U-shaped groove; the third rolling element (203) abuts against a side wall of the fifth V-shaped groove.

10. The variable aperture (20) according to any one of claims 7 to 9, characterized in that: The radius of the first circular arc track is the same as the radius of the second circular arc track.

11. The variable aperture (20) according to claim 7, characterized in that: The variable aperture (20) further comprises: a fourth rolling element (204) located in the first track (2001); a second gap is provided between the fourth rolling element (204) and at least one side wall of the first V-shaped groove (211) or the third V-shaped groove (231); the fourth rolling element (204) and the first rolling element (201) are arranged along the extension direction of the first track (2001); A fifth rolling element (205) is located in the second track (2002); a third gap is provided between the fifth rolling element (205) and at least one side wall of the second V-shaped groove (212) or the fourth V-shaped groove (232); and the fifth rolling element (205) and the second rolling element (202) are arranged along the extension direction of the second track (2002).

12. The variable aperture (20) according to any one of claims 7 to 11, characterized in that: The fixing seat (21) is an annular structure, and a first avoidance groove (2111) and a second avoidance groove (2112) are provided on the side wall of the fixing seat (21); The rotating support (23) comprises: An annular portion (2314) is located inside the fixing seat (21); a first lug (2311) disposed on a side wall of the annular portion (2314) and connected to the annular portion (2314); the first lug (2311) is located in the first avoidance groove (2111) and has a fourth gap with the side wall of the first avoidance groove (2111); The second lug (2312) is arranged on the side wall of the annular portion (2314) and is connected to the annular portion (2314); the second lug (2312) is located in the second avoidance groove (2112) and has a fifth gap between the second lug (2312) and the groove wall of the second avoidance groove (2112).

13. The variable aperture (20) according to claim 12, characterized in that: The first V-shaped groove (211) is provided on the bottom surface of the first avoidance groove (2111); The second V-shaped groove (212) is provided on the bottom surface of the second avoidance groove (2112); The third V-shaped groove (231) is formed on the surface of the first lug (2311) facing the fixing seat (21); The fourth V-shaped groove (232) is formed on the surface of the second lug (2312) facing the fixing seat (21).

14. The variable aperture (20) according to claim 13, characterized in that: The fixing seat (21) is also provided with a first receiving groove (213), and the rotating bracket (23) is also provided with a second receiving groove (233); A third avoidance groove (2113) is also provided on the side wall of the fixing seat (21); The rotating bracket (23) further comprises a third lug (2313), wherein the third lug (2313) is arranged on the side wall of the annular portion (2314) and connected to the annular portion (2314); the third lug (2313) is located in the third avoidance groove (2113), and a sixth gap is formed between the third lug (2313) and the groove wall of the third avoidance groove (2113); Wherein, the first accommodating groove (213) is opened on the bottom surface of the third avoidance groove (2113); and the second accommodating groove (233) is opened on the surface of the third lug (2313) facing the fixing seat (21).

15. The variable aperture (20) according to any one of claims 12 to 14, characterized in that: The variable aperture (20) further comprises: A magnet assembly (261) is arranged on a surface of a side wall of the annular portion (2314) facing the fixing seat (21); A magnetic conductive sheet (28) is connected to the fixing seat (21), and along the optical axis direction, the magnetic conductive sheet (28) is used to be adsorbed with the magnet assembly (261).

16. The variable aperture (20) according to claim 15, characterized in that: The fixing seat (21) is a plastic part; The magnetic conductive sheet (28) is embedded in the plastic part, and the magnetic conductive sheet (28) is a ring-shaped structure.

17. The variable aperture (20) according to claim 15, characterized in that: The magnetic conductive sheet (28) is arranged on the bottom surface of the fixing seat (21) facing away from the rotating bracket (23).

18. The variable aperture (20) according to claim 15, characterized in that: The fixing seat (21) is a plastic part, and the magnetic conductive sheet (28) is embedded in the plastic part; wherein the magnetic conductive sheet (28) is welded to the metal cover (2201).

19. The variable aperture (20) according to claim 18, characterized in that: The variable aperture (20) further comprises a flexible circuit board (27), wherein the flexible circuit board (27) is arranged around the side wall of the fixing seat (21); wherein the magnetic conductive sheet (28) and the metal cover (2201) are grounded on the flexible circuit board (27).

20. A camera module (10), characterized in that: include: Lens assembly (11); The variable aperture (20) according to any one of claims 1 to 19, wherein the variable aperture (20) is arranged on a light incident side of the lens assembly (11).

21. An electronic device, characterized in that: include: A housing (09) and a camera module (10) as claimed in claim 20, wherein the camera module (10) is arranged on the housing (09).

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