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 advancement of electronic device integration technology, taking photos and videos has become a common function in electronic devices, leading to the increasing use of cameras in these devices. These cameras feature a variable aperture, which has an adjustable aperture. By varying the aperture size, the amount of external light entering the camera can be adjusted. Currently, variable apertures suffer from severe eccentricity, resulting in poor aperture precision and reduced product quality. Summary of the Invention

[0003] The present application provides a variable aperture, a camera module, and an electronic device for reducing the probability of eccentricity of the aperture hole of the variable aperture.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] In one aspect, the present application provides a variable aperture iris, comprising a fixed base, a rotating bracket, a first rolling element, and a second rolling element. The fixed base is provided with a first V-groove and a second V-groove. The rotating bracket is located within the fixed base and is provided with a third V-groove and a fourth V-groove. The first and third V-groove define a first track, while the second and fourth V-groove define a second track. A first rolling element is located within the first track, abutting the sidewalls of the first and third V-groove, and configured to roll along a first arc path along the first track. A second rolling element is located within the second track, abutting the sidewalls of the second and fourth V-groove, and configured to roll along a second arc path along the second track. The rotating bracket is rotatably connected to the fixed base via the first and second rolling elements. The first and second rolling elements are located between the fixed base and the rotating bracket along the optical axis of the variable aperture iris, with the first and second arc paths being concentric with the optical axis.

[0006] In summary, since the first rolling member is located in the first track, the first rolling member abuts against the sidewalls of the first V-shaped groove and the third V-shaped groove, so that the first rolling member can roll along the extension direction of the first track in a first circular arc trajectory. Similarly, the second rolling member can be located in the second track, and the second rolling member can abut against the sidewalls of the second V-shaped groove and the fourth V-shaped groove, so that the second rolling member can roll along the extension direction of the second track in a second circular arc trajectory. In this way, the rotating support can be rotatably connected to the fixed seat through the first rolling member and the second rolling member. On this basis, since the first circular arc trajectory and the second circular arc trajectory are concentrically arranged about the optical axis, during the rotation of the rotating support relative to the fixed seat through the first rolling member and the second rolling member, the rotation trajectory of the rotating support can be concentric with the first circular arc trajectory and the second circular arc trajectory about the optical axis, so that the probability of eccentricity of the aperture hole of the variable aperture can be reduced. In addition, for the scheme of arranging the rolling ball between the rotor sidewall and the stator sidewall, the circularity of the rotor sidewall and the stator sidewall is required to be high. In the present application, the first rolling member and the second rolling member can be located between the fixed seat and the rotating support along the optical axis direction of the variable aperture, so that the circularity of the sidewall of the fixed seat and the sidewall of the rotating support is not required to be high, 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 base is further provided with a first receiving groove, and the rotating bracket is further provided with a second receiving groove. The first and second receiving grooves enclose a third track. At least one of the first and second receiving grooves is a first U-shaped groove. The variable aperture iris further includes a third rolling element, which is located within the third track. The third rolling element abuts the bottom surface of the first U-shaped groove and has a first gap between it and at least one sidewall of the first U-shaped groove. The third rolling element is configured to roll within the third track. Along the optical axis, the third rolling element is located between the fixed base and the rotating bracket. In this case, because the third rolling element abuts the bottom surface of the first U-shaped groove, when the variable aperture iris is subjected to a force F during assembly, use, or reliability testing, the third rolling element abutting the bottom surface of the first U-shaped groove can support the rotating bracket. This can disperse the force acting on the first and second rolling elements, thereby increasing the service life of the first and second rolling elements and ultimately improving the reliability of the variable aperture iris. On the other hand, as can be seen from the above, the first rolling element abuts against the side walls of the first V-shaped groove and the side walls of the third V-shaped groove. The second rolling element abuts against the side walls of the second V-shaped groove and the side walls of the fourth V-shaped groove. This allows the first rolling element to roll along the first track and the second rolling element to roll along the second track during the rotation of the rotating bracket relative to the fixed seat. Based on this, by providing the above-mentioned first gap between the third rolling element and at least one side wall of the first U-shaped groove, this first gap can provide the third rolling element with a certain amount of space to move within the surface perpendicular to the optical axis, thereby preventing the rotating bracket and the fixed seat from getting stuck.

[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 element abuts against the sidewall of the fifth V-shaped groove. In this way, under the action of gravity, the third rolling element is more likely to abut against the sidewall of the fifth V-shaped groove, thereby making it easier for the third rolling groove to 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 can be a U-shaped groove and the second accommodating groove 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.

[0010] In an optional embodiment, 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 element and a fifth rolling element. The fourth rolling element is located within the first track. A second gap is defined between the fourth rolling element and at least one sidewall of the first or third V-groove. The fourth rolling element and the first rolling element are arranged along the extension direction of the first track. The fifth rolling element is located within the second track. A third gap is defined between the fifth rolling element and at least one sidewall of the second or fourth V-groove. The fifth rolling element and the second rolling element are arranged along the extension direction of the second track. This allows the fourth rolling element to have sufficient room to maneuver within the third V-groove, thereby preventing it from interfering with the rolling motion of the first rolling element within the same first track and reducing the likelihood of jamming between the rotating bracket and the fixed seat. Furthermore, during assembly, use, or reliability testing of the variable aperture, if a force causes the rotating bracket to move downward, the sidewall of the third V-groove abuts the fourth rolling element. In this way, the fourth rolling element can support the rotating bracket, thereby dispersing the force acting on the first rolling element, increasing the service life of the first rolling element, and ultimately improving the reliability of the variable aperture. The technical effects of the fifth rolling element are similar and will not be further described here.

[0012] In an optional embodiment, the fixing seat is an annular structure, and a first avoidance groove and a second avoidance groove are provided on the side wall of the fixing seat. In addition, the rotating bracket includes an annular portion, a first lug and a second lug. The annular portion is located inside the fixing seat. The first lug is provided 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 has a fourth gap between it and the side wall of the first avoidance groove. The second lug is provided 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 has a fifth gap between it and the groove wall of the second avoidance groove. In this way, by providing the first avoidance groove, the second avoidance groove and the third avoidance groove that respectively cooperate with the first lug, the second lug and the third lug of the rotating bracket on the fixing seat, the rotation of the rotating bracket can be limited within a surface perpendicular to the optical axis.

[0013] In one optional embodiment, a first V-shaped groove is formed on the bottom surface of the first avoidance groove. A second V-shaped groove is formed on the bottom surface of the second avoidance groove. A third V-shaped groove is formed on the surface of the first lug facing the fixing seat. A fourth V-shaped groove is formed on the surface of the second lug facing the fixing seat. This fully utilizes the dimensions of the area where the lugs and avoidance grooves are located, making the entire variable aperture structure more compact and facilitating a miniaturized product design.

[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 further provided on the side wall of the fixed seat. The rotating bracket also includes a third lug, which 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 there is a sixth gap 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 the miniaturization 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 annular portion's sidewall facing the fixed base. The magnetic conductive sheet is connected to the fixed base and is configured to attract the magnet assembly along the optical axis. This allows the magnetic conductive sheet to attract the magnet assembly along the optical axis during rotation of the rotating bracket, thereby minimizing the risk of the rotating bracket separating from the fixed base during rotation of the camera module and improving the reliability of the variable aperture.

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

[0017] In an optional embodiment, the magnetic conductive sheet is disposed on the bottom surface of the fixed base facing away from the rotating bracket. In this way, the magnetic conductive sheet can be connected to the fixed base by a bonding process, thereby simplifying the manufacturing 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. As the plurality of blades move, the size of the aperture hole changes accordingly. In addition, the aperture cover is arranged on the fixed seat and wraps around a portion of the side wall of the fixed seat. The rotating bracket and the blades are located inside the aperture cover, and the aperture cover is connected to the fixed seat. Since the aperture cover wraps around a portion of the side wall of the fixed seat and is connected to the fixed seat, the aperture cover can protect the fixed seat, the rotating bracket, and the blades it covers. During the assembly, use, or reliability testing of the variable aperture, collisions between the fixed seat, the rotating bracket, the blades, and components outside 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 side plates that are connected to each other. The side plates are arranged around the periphery of the cover plate and wrap around a portion of the side wall of the fixing seat, and the side plates are 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 portion of the cover plate and the side plates. In this way, since the buffer layer covers the cover plate and the side plates of the metal cover, the metal cover can be protected. When the variable aperture is subjected to impact 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 inside the aperture cover.

[0020] In one optional embodiment, the aperture cover further includes a matte layer that covers the cover plate. A buffer layer is disposed around the periphery of the matte layer, protruding from the surface of the matte layer facing away from the cover plate. In this case, on the one hand, the matte layer can scatter, reflect, or absorb incident light, achieving a matte effect, thereby rendering the outer surface of the variable aperture visible to the user substantially black, thereby meeting design requirements. On the other hand, because the buffer layer protrudes from the surface of the matte layer facing away from the cover plate, it protects the matte layer, reducing the chance of surface wear or shedding of the matte layer during assembly, use, or reliability testing of the variable aperture.

[0021] In an optional embodiment, the fixing base 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. This can improve the reliability of the connection between the fixing base and the entire aperture cover and reduce the chance of the fixing base and the aperture cover detaching.

[0022] In an optional embodiment, the variable aperture further includes a flexible circuit board, which is disposed around the sidewall of the mounting base. The magnetic conductive sheet and the metal cover are grounded to the flexible circuit board. For example, a portion of the magnetic conductive sheet can be electrically connected to a grounded copper area on the flexible circuit board. If the magnetic conductive sheet and the metal cover are welded, they can be grounded to the 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, thereby avoiding 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, comprising a lens assembly and any of the aforementioned variable apertures, wherein the variable aperture is disposed on the light incident side of the lens assembly. This camera module has the same technical effects as the variable aperture provided in the aforementioned embodiments, and will not be further described 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 effects as the variable aperture provided in the aforementioned embodiment, and 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 diagram of the camera module;

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

[0029] Figure 4 for Figure 3 A structural 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 Schematic diagram of another explosion structure of the variable aperture;

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

[0033] Figure 8 for Figure 4Schematic diagram of another explosion structure of the variable aperture;

[0034] Figure 9 for Figure 4 Schematic diagram of another explosion structure of the variable aperture;

[0035] Figure 10 for Figure 4 Schematic diagram of another explosion structure of the variable aperture;

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

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

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

[0039] Figure 14 for Figure 12 Another schematic diagram of the enlarged structure at B;

[0040] Figure 15 For the Figure 9 A top view obtained from the C direction;

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

[0042] Figure 17 for Figure 16 A schematic diagram of the enlarged structure at D;

[0043] Figure 18 For the Figure 9 Another top view obtained from the C direction;

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

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

[0046] Figure 21 for Figure 4 Schematic diagram of another explosion structure of the variable aperture;

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

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

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

[0050] Figure 25 A schematic structural diagram of a fixing base provided in an embodiment of the present application;

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

[0052] Figure 27 for Figure 4 Schematic diagram of another explosion structure of the variable aperture;

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

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

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

[0056] Figure 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 cover; 04-Midframe; 05-Processor; 06-Opening hole; 07-Lens cover; 08-Camera hole; 09-Casing; 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-transmitting 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 rail; 2002 - second rail; 2003 - third rail; 204 - fourth rolling element; 205 - fifth rolling element; 26 - drive 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 panel; 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 the embodiments.

[0060] In the following, the terms "first," "second," etc., are used for descriptive convenience only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified 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 descriptions and clarifications, 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 connection; 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 indicate approximately vertical and approximately parallel within a certain error range, and the error range may be a range in which the deviation angle relative to absolute vertical and absolute parallel is less than or equal to 5°, 8° or 10°, 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 components schematically placed 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.

[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] Embodiments of the present application provide an electronic device, which can have a display function. The electronic device can 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 embodiments of the present application can be a mobile phone, a pad, a notebook computer, a smart home, a smart wearable device (for example, a smart watch, a smart bracelet, smart glasses, a smart helmet), a virtual reality (VR) electronic device, an augmented reality (AR) electronic device, and the like. The electronic device can also be a handheld device, a computing device, or other processing device connected to a wireless modem having a wireless communication function, a vehicle-mounted device, an electronic device in a 5G network, or an electronic device in a future evolved public land mobile network (PLMN), and the like, and embodiments of the present application are not limited thereto.

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

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

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

[0072] For example, the processor 05 can include one or more processing units, such as an application processor (AP), a modem processor, a graphics processing unit (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 can be independent devices or integrated into one or more processors.

[0073] In addition, the electronic device 01 can further 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 key, and a camera, etc. electrically connected to the processor 05. The sensor module can include a pressure sensor, a gyro sensor, a barometric 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 above-mentioned electronic device 01 to realize image acquisition, i.e., the shooting function, the electronic device 01 provided by the embodiments of the present application can further include a camera module 10, which can be a front camera module or a rear camera module. For example, the front camera module or the rear camera module can include a plurality of camera modules 10 as shown in the figure. Figure 1 For example, taking the rear camera module as an example, the rear shell 03 is connected with the middle frame 04 to form a shell 09, and the camera module 10 is arranged on the shell 09. The rear shell 03 is provided with an opening 06 for exposing part of the camera module 10, and the electronic device 01 further 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] Among them, the above-mentioned camera module 10 can be one or more of a standard camera module, a long-focus camera module, a wide-angle camera module, an ultra-long-focus camera module, and an ultra-wide-angle camera module. The number of camera modules 10 is not limited in the present application, Figure 1 For example, taking the rear camera module including three camera modules 10 as an example.

[0076] The structure of the camera module 10 is described below. In some embodiments of the present application, as shown in the figure, Figure 2 The camera module 10 can include a variable aperture 20, a lens assembly 11, and a motor 12. For ease of description, XYZ coordinate axes are established in the figure, wherein the Z direction can 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 can be perpendicular to the direction of the optical axis O1-O2 of the variable aperture 20.

[0077] Based on this, the above-mentioned lens assembly 11 can 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 photographed object onto the focal plane of the camera module 10 for imaging. The variable aperture 20 is arranged on the light entrance side of the lens assembly 11. The variable aperture 20 has an aperture hole 100 with adjustable aperture, and by changing the aperture size of the aperture hole 100, the amount of light entering the camera module 10 from the outside can be adjusted.

[0078] In addition, the motor 12 can drive the lens assembly 11 to move along the Z direction to realize 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 realize optical image stabilization.

[0079] On this basis, in order to enable the camera module 10 to perform photoelectric conversion on the light incident on 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 is coupled to the circuit board 14 so that the image sensor 15 can communicate with the processor 05 (e.g., a processor 05) disposed on the circuit board 14. Figure 1 For example, the circuit board 14 may be a PCB or a flexible printed circuit (FPC), which is not limited in this application.

[0080] The filter 13 is disposed on the light-entering side of the image sensor 15. For example, the filter 13 may be an infrared filter that filters out infrared light from the ambient light while transmitting visible light. Alternatively, for example, the filter 13 may be a dual-bandpass filter that selectively transmits wavelengths within two regions of the ambient light, 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 subject focused 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 this 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 described below with examples. Figure 4 As shown, the variable aperture 20 includes a fixed base 21 and an aperture cover 22. The aperture cover 22 is disposed on the fixed base 21 and can wrap a portion of the side wall of the fixed base 21. The aperture cover 22 is connected to the fixed base 21.

[0083] On this basis, if Figure 5As shown, the variable aperture 20 can further include a carrier 23 and a plurality of blades 24. The carrier 23 and the blades 24 are located in the aperture cover 22. Since the aperture cover 22 wraps a portion of the sidewall of the fixed seat 21, the aperture cover 22 is connected to the fixed seat 21, and thus the aperture cover 22 can protect the fixed seat 21, the carrier 23 and the blades 24 from being impacted by components outside the variable aperture 20 during assembly, use or reliability testing of the variable aperture 20.

[0084] In addition, the carrier 23 is located in the fixed seat 21 and can be rotatably connected to the fixed seat 21. Thus, the carrier 23 can act as a rotor in the variable aperture 20 and rotate relative to the fixed seat 21 as a stator in the direction of the arc-shaped arrow shown. Figure 5 In addition, the plurality of blades 24 are arranged on the carrier 23, and the blades 24 can be slidably connected to the carrier 23 and rotatably connected to the fixed seat 21. The plurality of blades 24 are arranged in a ring shape to surround the aperture hole 100.

[0085] In order to arrange the carrier 23 in the fixed seat 21, in some embodiments of the present application, as shown, the carrier 23 can include a ring-shaped portion 2314 and a first lug 2311, a second lug 2312 and a third lug 2313 arranged on the sidewall of the ring-shaped portion 2314. The first lug 2311, the second lug 2312 and the third lug 2313 can be connected to the ring-shaped portion 2314. The ring-shaped hollow region of the ring-shaped portion 2314 can be in communication with the aperture hole 100 (as shown) to allow incident light to pass through. For example, the first lug 2311, the second lug 2312 and the third lug 2313 can be uniformly distributed on the sidewall of the ring-shaped portion 2314. Figure 6 Figure 5 In addition, as shown, the fixed seat 21 can have a ring shape, and the ring-shaped hollow region of the fixed seat 21 can be in communication with the aperture hole 100 (as shown). In addition, the sidewall of the fixed seat 21 is provided with a first avoiding slot 2111, a second avoiding slot 2112 and a third avoiding slot 2113. Based on this, as shown, the ring-shaped portion 2314 of the carrier 23 can be located in the fixed seat 21. In this way, the thickness (in the Z direction) of the carrier 23 and the fixed seat 21 can be overlapped, achieving the purpose of reducing the thickness of the variable aperture 20.

[0086] In addition, as shown, the fixed seat 21 can have a ring shape, and the ring-shaped hollow region of the fixed seat 21 can be in communication with the aperture hole 100 (as shown). In addition, the sidewall of the fixed seat 21 is provided with a first avoiding slot 2111, a second avoiding slot 2112 and a third avoiding slot 2113. Based on this, as shown, the ring-shaped portion 2314 of the carrier 23 can be located in the fixed seat 21. In this way, the thickness (in the Z direction) of the carrier 23 and the fixed seat 21 can be overlapped, achieving the purpose of reducing the thickness of the variable aperture 20. Figure 6 Figure 5 Figure 7

[0087] In addition, as shown, the fixed seat 21 can have a ring shape, and the ring-shaped hollow region of the fixed seat 21 can be in communication with the aperture hole 100 (as shown). In addition, the sidewall of the fixed seat 21 is provided with a first avoiding slot 2111, a second avoiding slot 2112 and a third avoiding slot 2113. Based on this, as shown, the ring-shaped portion 2314 of the carrier 23 can be located in the fixed seat 21. In this way, the thickness (in the Z direction) of the carrier 23 and the fixed seat 21 can be overlapped, achieving the purpose of reducing the thickness of the variable aperture 20. Figure 7 ​​​​As shown, the first lug 2311 of the rotating holder 23 is located in the first avoiding slot 2111, and the first lug 2311 can have a fourth gap H4 between the first lug 2311 and the sidewall of the first avoiding slot 2111. The second lug 2312 of the rotating holder 23 is located in the second avoiding slot 2112, and the second lug 2312 can have a fifth gap H5 between the second lug 2312 and the sidewall of the second avoiding slot 2112. Similarly, the third lug 2313 of the rotating holder 23 is located in the third avoiding slot 2113, and the third lug 2313 can have a sixth gap H6 between the third lug 2313 and the sidewall of the third avoiding slot 2113. The fourth gap H4, the fifth gap H5, and the sixth gap H6 can be the same or different, which is not limited in the present application.

[0088] In this way, by setting the first avoiding slot 2111, the second avoiding slot 2112, and the third avoiding slot 2113 on the fixing seat 21, which are matched with the first lug 2311, the second lug 2312, and the third lug 2313 of the rotating holder 23 respectively, the rotation of the rotating holder 23 can be limited in the XY plane (a surface perpendicular to the optical axis). For example, the sum of the gaps between the sidewalls of the avoiding slot and the lugs in the avoiding slot, such as the sum of the gaps between the first lug 2311 and the two sidewalls of the first avoiding slot 2111, i.e. 2xH4, can be the rotation stroke of the rotating holder 23 relative to the fixing seat 21 when the rotating holder 23 rotates.

[0089] The above is an example of the rotating holder 23 having three lugs. In other embodiments of the present application, the rotating holder 23 can have one, two, or more than three lugs, and the number of lugs is not limited in the present application. The number of avoiding slots on the fixing seat 21 is consistent with the number of lugs.

[0090] For convenience of description, the following is an example of the rotating holder 23 having three lugs, i.e. the first lug 2311, the second lug 2312, and the third lug 2313, and the fixing seat 21 having three avoiding slots, i.e. the first avoiding slot 2111, the second avoiding slot 2112, and the third avoiding slot 2113. In addition, the above is an example of the rotating holder 23 being partially located in the fixing seat 21, such as the annular portion 2314. In other embodiments of the present application, the entire rotating holder 23 can be located in the fixing seat 21.

[0091] In addition, in order to enable the blade 24 to be slidably connected with the rotating holder 23 and to be rotatably connected with the fixing seat 21, the variable aperture 20 can further include, for example Figure 8The first limiting post 2101 and the second limiting post 2301 are shown. The first limiting post 2101 can be disposed on the surface of the fixed seat 21 facing the blade 24, and the first limiting post 2101 is connected with the fixed seat 21. The second limiting post 2301 is disposed on the surface of the rotating support 23 facing the blade 24, and the second limiting post 2301 is connected with the rotating support 23.

[0092] In this case, as shown in Figure 8 each blade 24 can be provided with a rotating hole 2401 and a sliding guide hole 2402. The first limiting post 2101 connected with the fixed seat 21 can be located in the rotating hole 2401, so that the blade 24 rotates around the first limiting post 2101, thereby realizing the rotating connection of the blade 24 and the fixed seat 21. In addition, the second limiting post 2301 connected with the rotating support 23 can extend into the sliding guide hole 2402 and slide along the sliding guide hole 2402, thereby realizing the sliding connection of the blade 24 and the rotating support 23.

[0093] In this way, during the rotation of the rotating support 23 relative to the fixed seat 21, the second limiting post 2301 on the rotating support 23 moves along the sliding guide hole 2402 on the blade 24 (as shown in Figure 8 ), thereby pushing the blade 24 to rotate along the axis direction of the first limiting post 2101. During the movement of the above-mentioned plurality of blades 24, the size of the aperture hole 100 changes. The two ends of the sliding guide hole 2402 (as shown in Figure 8 ) are the limit positions of the second limiting post 2301, and when the second limiting post 2301 slides to any one of the above-mentioned two limit positions, the aperture of the aperture hole 100 can change to the maximum aperture or the minimum aperture.

[0094] Based on this, the aperture hole 100 can control the amount of light incident on the lens assembly 11 (as shown in Figure 3 ). For example, the minimum aperture of the aperture hole 100 can match the first limit aperture of the variable aperture 20, for example, the minimum aperture. At this time, the light flux passing through the variable aperture 20 into the lens assembly 11 can be minimum. Conversely, in some embodiments of the present application, the maximum aperture of the aperture hole 100 can match the second limit aperture of the variable aperture 20, for example, the maximum aperture. At this time, the light flux passing through the variable aperture 20 into the lens assembly 11 can be maximum.

[0095] Alternatively, in some other embodiments of the present application, as shown in Figure 9As shown, the variable aperture 20 may further include a spacer (soma) 25, which is stacked on the side of the multiple blades 24 facing the fixed base 21. A second light-transmitting hole 102 is defined in the spacer 25 and communicates with the aperture 100. The aperture of the second light-transmitting hole 102 can match the second limit aperture setting of the variable aperture 20, such as the maximum aperture setting. In this case, the edge shape of the second light-transmitting hole 102 is closer to an ideal circle than the edge shape of the aperture 100 at its maximum aperture, which is enclosed by the multiple blades 24. When the aperture 100 is at its maximum aperture, the blades 24 can be positioned outside the edge of the second light-transmitting hole 102, thereby avoiding obstruction of the second light-transmitting hole 102.

[0096] Based on this, in order to make the rotating bracket 23 rotate relative to the fixed base 21, the center of the aperture hole 100, that is, the optical axis O1-O2 of the variable aperture 20 (as shown in FIG. Figure 2 As shown) rotate, Figure 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 Figure 10 As shown, when the rotating bracket 23 has a first lug 2311 and a second lug 2312, and the fixed base 21 is provided with a first avoidance groove 2111 and a 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. Furthermore, the third V-shaped groove 231 can be provided on the surface of the first lug 2311 facing the fixed base 21, and the fourth V-shaped groove 232 can be provided on the surface of the second lug 2312 facing the fixed base 21. This fully utilizes the dimensions of the areas where the lugs and avoidance grooves are located, making the entire variable aperture 20 more compact and facilitating a miniaturized product design.

[0098] On this basis, if Figure 11 (along Figure 9 As shown in the cross-sectional view taken along the dotted line O3-O0-O4 in FIG, 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. Figure 12 (along Figure 9As shown by the dashed lines O3-O0-O4 in the figure, the variable aperture 20 may further include a first rolling element 201 and a second rolling element 202. Along the optical axis O1-O2 of the variable aperture 20, the first rolling element 201 and the second rolling element 202 may be located between the fixed seat 21 and the rotating bracket 23. For example, either the first rolling element 201 or the second rolling element 202 may be a ball or a roller, which is not limited in this application.

[0099] On this basis, if Figure 13 ( Figure 12 As shown in the enlarged view of point B in FIG, 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 is in a zero-matching state with the side wall a1 of the first V-shaped groove 211 and the side wall a2 of the third V-shaped groove 231. Similarly, as shown in FIG. Figure 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 Figure 11 The side wall of the second V-shaped groove 212 and the side wall of the fourth V-shaped groove 232 abut against each other, 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 the two opposite side walls of the groove body (for example, Figure 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. Moreover, 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 Figure 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, it will be sufficient.

[0101] Based on this, Figure 15 (along Figure 9 As shown in the top view (as viewed from the direction C in FIG), the first rolling element 201 is configured to roll along the first track 2001 in a first arcuate trajectory S1. The second rolling element 202 is configured to roll along the second track 2002 in a second arcuate trajectory S2. The first arcuate trajectory S1 and the second arcuate trajectory S2 are concentrically arranged about the optical axis O1-O2. In this manner, the rotating bracket 23 can be rotatably connected to the fixed base 21 via the first rolling element 201 and the second rolling element 202.

[0102] For example, the first arc track S1 and the second arc track S2 are concentrically arranged about the optical axis O1-O2, which may mean that the center of the first arc track S1 and the center of the second arc track S2 may be on the above-mentioned optical axis Q1-O2. For example, the first arc track S1 and the second arc track S2 may be located in the same plane, in which case the positions of the center of the first arc track S1 and the center of the second arc track S2 on the optical axis Q1-O2 may coincide. Alternatively, the first arc track S1 and the second arc track S2 may be located in different planes, in which case the positions of the center of the first arc track S1 and the center of the second arc track 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 centered on the perpendicular projection of the optical axis O1-O2 on the XY plane. 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. In this case, the first track 2001 and the second track 2002 are located on the same circle centered on the perpendicular projection of the optical axis O1-O2 on the XY plane. That is, the first V-grooves 211 and the second V-grooves 212 forming the first track 2001 and the third V-grooves 231 and the fourth V-grooves 232 forming the second track 2002 are located on the same circle centered on the perpendicular projection of the optical axis O1-O2 on the XY plane. In this way, the first track 2001 and the second track 2002 can be at the same distance from the optical axis O1-O2, thereby simplifying the manufacturing process of the variable aperture 20.

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

[0105] In summary, the embodiments of the present application provide Figure 10 The variable aperture 20 shown may include a fixed seat 21, a rotating bracket 23, a first rolling element 201, and a second rolling element 202. The rotating bracket 23 is located within the fixed seat 21. Along the optical axis O1-O2 of the variable aperture 20, the first rolling element 201 and the second rolling element 202 may be located between the fixed seat 21 and the rotating bracket 23. Furthermore, the fixed seat 21 is provided with a first V-groove 211 and a second V-groove 212, and the rotating bracket 23 is provided with a third V-groove 231 and a fourth V-groove 232. Figure 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 enclose a 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 a second track 2002 .

[0106] Based on this, Figure 15 As shown, the first rolling element 201 is located in the first track 2001, and the first rolling element 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 element 201 can roll along the first arc track S1 along the extension direction of the first track 2001. Similarly, the second rolling element 202 can be located in the second track 2002, and the second rolling element 202 can abut against the second V-shaped groove 212 (as shown in FIG. Figure 11 The sidewall of the fourth V-shaped groove 232 abuts against the sidewall of the second V-shaped groove 232, thereby allowing the second rolling element 202 to 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 fixed base 21 via the first rolling element 201 and the second rolling element 202.

[0107] On this basis, because the first arc trajectory S1 and the second arc trajectory S2 are concentric with respect to the optical axis O1-O2, during the rotation of the rotating bracket 23 relative to the fixed base 21 via the first rolling element 201 and the second rolling element 202, the rotation trajectory of the rotating bracket 23 can be concentric with the first arc trajectory S1 and the second arc trajectory S2 with respect to the optical axis O1-O2, thereby reducing the probability of decentration of the aperture 100 of the variable aperture 20. Furthermore, the solution of placing the ball bearings between the rotor sidewall and the stator sidewall requires high circularity of the rotor and stator sidewalls. In the present application, however, the first rolling element 201 and the second rolling element 202 can be located between the fixed base 21 and the rotating bracket 23 along the optical axis O1-O2 of the variable aperture 20. This eliminates the need for high circularity requirements for the sidewalls of the fixed base 21 and the rotating bracket 23, further facilitating the reduction of decentration of the aperture 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 Figure 10As shown, the fixed base 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 base 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 base 21. Similarly, the size of the area where the third lug 2313 and the third avoidance groove 2113 are located can be effectively utilized, thereby improving the space utilization of the variable aperture 20.

[0109] Based on this, Figure 16 (along Figure 9 As shown in the cross-sectional view obtained by cutting along the dotted line O4-O0-O5 in FIG, the first receiving groove 213 and the second receiving groove 233 enclose 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, Figure 17 ( Figure 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 the two opposite side walls of the groove body (for example, Figure 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 "U"-shaped.

[0111] Based on this, the variable aperture 20 may also include: Figure 17 The third rolling member 203 is shown. The third rolling member 203 can be located within the third track 2003, abutting (i.e., zero-matching) the bottom surface a4 of the first U-shaped groove (i.e., the second receiving groove 233). A first gap H1 can be defined between the third rolling member 203 and at least one sidewall a3 of the first U-shaped groove (i.e., the second receiving groove 233). The third rolling member 203 is configured to roll within the third track 2003. Along the optical axis (i.e., the Z direction), the third rolling member 203 is located between the fixed seat 21 and the rotating bracket 23, allowing the rotating bracket 23 to rotate relative to the fixed seat 21 via the third rolling member 203.

[0112] In this case, on the one hand, continue as Figure 17 As shown, 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 rotation of the first rolling element 203 during assembly, use or reliability testing. Figure 17When a force F is applied downward in the direction of the arrow, the third rolling member 203 abutting against the bottom surface a4 of the first U-shaped groove can support the rotating bracket 23, thereby dispersing 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 Figure 12 The first rolling element 201 and Figure 11 As shown, the sidewalls of the first V-shaped groove 211 and the sidewalls of the third V-shaped groove 231 are in contact with each other. Figure 12 The second rolling element 202 in Figure 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. Figure 15 As shown, the first rolling element 201 rolls along the first track 2001, and the second rolling element 202 rolls along the second track 2002. Based on this, by providing the first gap H1 between the third rolling element 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 allows the third rolling element 203 to have a certain amount of movement on a surface perpendicular to the optical axis (i.e., in the XY plane), thereby reducing the possibility of interference and preventing jamming between the rotating bracket 23 and the fixing seat 21.

[0114] The above is based on Figure 17 In the example, the first receiving groove 213 is a fifth V-shaped groove, and the second receiving groove 233 is a first U-shaped groove. This allows the third rolling element 203 to more easily abut against the sidewall of the fifth V-shaped groove (i.e., the first receiving groove 213) under the action of gravity, thereby making it easier for the third rolling element 203 to roll along the fifth V-shaped groove (i.e., the first receiving groove 213). 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 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 description uses the third rolling element 203 disposed in the third track 2003 and abutting against a portion of the rotating bracket 23 as an example to illustrate how to improve the reliability of the variable aperture 20. In other embodiments of the present application, the variable aperture 20 may further include: Figure 18 (along Figure 9 The fourth rolling element 204 and the fifth rolling element 205 are shown in the top view (above) as viewed from the direction C in FIG. The present application does not limit the number of the fourth rolling element 204 and the fifth rolling element 205. Figure 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 may be arranged along the extension direction of the first track 2001 together with the first rolling element 201. The fifth rolling element 205 may be located in the second track 2002 and may be arranged along the extension direction of the second track 2002 together with the second rolling element 202.

[0118] In addition, if Figure 19 (along Figure 18 As shown in the cross-sectional view taken along the dotted line O6-O7 in FIG, a second gap H2 can be formed between the fourth rolling element 204 and 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 fixed seat 21). In this way, the fourth rolling element 204 can have a certain amount of space to move within 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. Figure 18 The rolling of the rotating bracket 23 and the fixing seat 21 reduces the probability of the occurrence of the stuck phenomenon.

[0119] In addition, during the assembly, use or reliability test of the variable aperture 20, when Figure 19 When a downward force F is applied in the direction of the arrow, the rotating bracket 23 moves downward, causing the side wall a2 of the third V-shaped groove 231 (or the side wall of the first V-shaped groove 211) to abut 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 acting on the first rolling element 201, reducing the deformation of the rotating bracket 23 and the first rolling element 201, and extending the service life of the first rolling element 201, thereby improving the reliability of the variable aperture 20.

[0120] And, as Figure 20 (along Figure 18 As shown in the cross-sectional view taken along the dotted line O8-O9 in FIG, a third gap H3 may be formed between the fifth rolling element 205 and 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, this will not affect the second rolling element 202 (such as Figure 18Furthermore, during assembly, use, or reliability testing of the variable aperture 20, the fifth rolling element 205 can abut against the sidewall a5 of the fourth V-shaped groove 232 on the rotating bracket 23 (or the sidewall of the second V-shaped groove 212 on the fixed base 21). The fifth rolling element 205 can support the rotating bracket 23 and extend the service life of the second rolling element 202.

[0121] On this basis, if Figure 21 As shown, in order to drive the rotating bracket 23 to rotate relative to the fixed base 21 along the optical axis O1-O2, the variable aperture 20 may include at least one driving component 26. For example, Figure 21 The following description is made by taking the example of the variable aperture 20 including two driving components 26 , wherein the driving components 26 may include a magnet component 261 and a coil 262 .

[0122] In some embodiments of the present application, Figure 21 As shown, the magnet assembly 261 can be mounted on the sidewall of the annular portion 2314 of the rotating bracket 23, facing the fixed base 21. For example, a mounting groove 2610 can be defined in the annular portion 2314, and the magnet assembly 261 can be positioned within the mounting groove 2610 and connected to the rotating bracket 23. Furthermore, the variable aperture 20 can further include a flexible printed circuit (FPC) 27, which can be positioned around the fixed base 21. The coil 262 can be mounted on and electrically connected to the FPC 27, so that power is supplied to the coil 262 via the FPC 27.

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

[0124] Continue as Figure 21 As shown, the variable aperture 20 may further include a reinforcing plate 271, a position sensor 272 and a capacitor 273. Figure 22As shown, a reinforcing plate 271 can be positioned outside the flexible circuit board 27, opposite the coil 262. Specifically, the vertical projection of the coil 262 on the flexible circuit board 27 overlaps the vertical projection of the reinforcing plate 271 on the flexible circuit board 27. For example, the reinforcing plate 271 can be harder than the flexible circuit board 27, thereby supporting the coil 262 and ensuring a reliable electrical connection between the coil 262 and the flexible circuit board 27. For example, the reinforcing plate 271 can be made of steel or a rigid plastic plate.

[0125] The position sensor 272 may be a sensor or chip capable of detecting a position, so as to detect the rotation position of the rotating bracket 23, thereby achieving accurate control of the aperture 100 (e.g., Figure 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, Figure 22 As shown, when the variable aperture 20 has two coils 262 , the position sensor 272 and the capacitor 273 may not be respectively disposed in the space enclosed by the two coils 262 , thereby achieving the effect of improving the utilization 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, which can drive the magnet assembly 261 to drive the rotating bracket 23 to rotate relative to the fixed base 21. Since the magnet assembly 261 is disposed on the rotating bracket 23 serving as a mover, the variable aperture 20 can be a moving magnet type variable aperture.

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

[0128] The above description uses a moving-magnetic variable aperture iris as an example. In other embodiments of the present application, the variable aperture iris 20 may also be a moving-coil variable aperture iris. In this case, the coil 262 may be mounted on the rotating bracket 23, which serves as the rotor, and the magnet assembly 261 may be mounted on the fixed base 21, which serves as the stator. This application does not limit the type of variable aperture iris 20. For ease of explanation, the following description uses the moving-magnetic variable aperture as an example.

[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 Figure 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 base 21, and the magnetic conductive sheet 28 is used to be attracted to the magnet assembly 261 along the optical axis O1-O2 direction.

[0130] For example, the magnetic conductive sheet 28 may include a metal capable of attracting ferromagnetic materials, such as iron, nickel, cobalt, or the like. For example, the magnetic conductive sheet 28 may be a stainless steel sheet, also referred to as a steel sheet. The configuration of the metal material capable of being attracted to magnetic materials in the following embodiments of this application is the same as described above and will not be further elaborated here.

[0131] In this way, continue as Figure 24 As shown, when the rotating bracket 23 rotates, 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, Figure 24 As shown, the magnetic sheet 28 is embedded in the fixing seat 21. Based on this, as Figure 25 As shown, the fixing base 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 a 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 base 21 can be formed as an integrated structural component through an insert molding process. The magnetic conductive sheet 28 can increase the rigidity of the entire integrated structural component.

[0133] Alternatively, as another example, the magnetic conductive sheet 28 may be provided 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 a single side of the vertical projection of the magnet assembly 261 in the XY plane, when the rotatable bracket 23 rotates to drive the multiple blades 24 to form the aperture 100, reaching an aperture position, such as the maximum aperture position or an aperture position commonly used by the user, the power supply to the coil 262 can be terminated (i.e., powered off). The attractive force between the magnet assembly 261 and the magnetic conductive sheet 28 can keep the rotatable bracket 23 and the fixed base 21 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, Figure 26 As shown, the magnetic conductive sheet 28 can be disposed on the bottom surface of the fixed base 21 facing away from the rotating bracket 23. In this way, the magnetic conductive sheet 28 can be connected to the fixed base 21 through a bonding process, thereby simplifying the manufacturing process of the variable aperture 20. The above description is based on an example in which the magnetic conductive sheet 28 is annular. In other embodiments of the present application, the vertical projection of the magnetic conductive sheet 28 in the XY plane can also be rectangular, polygonal, etc., and this application does not limit this. For the sake of convenience, the following examples are based on an example in which the magnetic conductive sheet 28 is annular and embedded in the fixed base 21.

[0136] In some embodiments of the present application, Figure 27 As shown, the variable aperture 20 can be assembled by mounting the magnet assembly 261 on the rotating bracket 23 and the coil 262 on the flexible circuit board 27. Next, the flexible circuit board 27 with the coil 262 mounted thereon is positioned around the periphery of the fixed base 21. The rotating bracket 23 is positioned within the fixed base 21, and a gasket 25 and a plurality of blades 24 are sequentially positioned on the upper surface of the rotating bracket 23. Finally, the aperture cover 22 is positioned over the assembled structure. The aperture cover 22 can be connected to the fixed base 21, thereby enclosing the fixed base 21, the rotating bracket 23, the flexible circuit board 27, the gasket 25, and the blades 24 within the aperture cover 22.

[0137] In related technologies, such as Figure 28 As shown, a sheet-shaped upper cover 30 is provided on the fixing base 21. The upper cover 30 does not enclose the fixing base 21. Therefore, the upper cover 30 is prone to falling off during assembly, use, or reliability testing of the iris diaphragm, which can lead to problems such as blade misalignment. In comparison, the aperture cover 22 provided in this application, by enclosing the remaining components of the iris diaphragm 20, is less likely to fall off, thereby improving the reliability of the iris diaphragm 20.

[0138] On this basis, in some embodiments of the present application, continue as follows Figure 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 may wrap around a portion of the side wall of the fixing base 21, and the side plate 22012 may be connected to the fixing base 21. A first light-transmitting hole 101 is formed in 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 may cover a portion of the cover plate 22011 and the side plate 22012.

[0139] As a result, because the buffer layer 2202 covers the cover plate 22011 and side plates 22012 of the metal cover 2201, it protects the metal cover 2201. When the iris 20 is impacted during assembly, use, or reliability testing, the iris cover 22 protects the remaining components of the iris 20, thereby preventing them from being directly subjected to external forces. Furthermore, the buffer layer 2202 can buffer external forces, reducing the forces acting on the metal cover 2201 and further enhancing the protection of the components within the iris cover 22.

[0140] For example, the buffer layer 2202 can be made of a soft rubber material, such as silicone or thermoplastic urethane (TPU). Alternatively, the buffer layer 2202 can be made of foam. Alternatively, it can be made of a soft plastic sheet. In some embodiments of the present application, the buffer layer 2202 can be bonded to the cover plate 22011 and side plates 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. Figure 29 (along Figure 27 As shown in the bottom view of the aperture cover obtained along the Z direction in FIG, the metal cover 2201 can be provided with a through hole that penetrates the metal cover 2201. During the above-mentioned insert injection molding process, the soft rubber material can flow into the through hole, thereby forming a buffer layer 2202 having connecting posts 22021. The connecting posts 22021 penetrate the through hole of the metal cover 2201 and connect 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 Figure 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, Figure 25 As shown, a portion of the magnetic conductive sheet 28 (for example, at position E) can extend out of the fixing base 21, and the extended portion can be welded to the metal cover 2201. In this way, the reliability of the connection between the fixing base 21 and the entire aperture cover 22 can be improved, and the probability of the fixing base 21 and the aperture cover 22 being separated can be reduced.

[0143] In addition, the variable aperture 20 includes Figure 27 In the case of the flexible circuit board 27 shown, a portion of the magnetic conductive sheet 28 can be electrically connected to a grounded copper area 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 to the flexible circuit board 27. This can reduce electromagnetic interference (EMI).

[0144] In addition, if Figure 30 ( Figure 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. Therefore, 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 Figure 29 As shown, the metal cover 2201 in the aperture cover 22 can be provided with a first limiting post avoidance hole 21011, and the first limiting post 2101 is away from the fixing seat 21 (as shown in FIG. Figure 30 One end of the first limiting column (as shown) can be located in the first limiting column avoidance hole 21011.

[0145] For example, the Figure 29 The first limiting column avoidance hole 21011 shown can be formed by removing a portion of the metal cover 2201 through an etching process. At this time, the first limiting column 2101 is away from the fixing seat 21 (as shown in FIG. Figure 30 As shown in the figure, there may be a gap between one end of the first limiting column 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 example, the first limiting column avoidance hole 21011 may also penetrate the metal cover 2201. At this time, the first limiting column 2101 is away from the fixing seat 21 (eg Figure 30 One end of the first limiting column (as shown) can be located in the first limiting column avoidance hole 21011, and the above-mentioned buffer layer 2202 can block the first limiting column avoidance hole 21011.

[0147] Similarly, continue as Figure 8 As shown, the second limiting post 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 post 2301. Therefore, the second limiting post 2301 can pass through the sliding guide hole 2402. In this case, continue as shown in FIG. Figure 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 Figure 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 Figure 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 avoidance hole 23011 of the second limiting column, 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 Figure 31 As shown, the aperture cover 22 may further include a matte layer 2203, which may cover the cover plate 22011. Furthermore, a buffer layer 2202 may be disposed around the periphery of the matte layer 2203. Furthermore, the buffer layer 2202 protrudes from the surface of the matte layer 2203 facing away from the cover plate 22011. For example, the matte layer 2203 may be a thin film or membrane having a matte effect.

[0150] In this case, on the one hand, the matte layer 2203 can scatter, reflect, or absorb incident light, achieving a matte effect, resulting in a substantially black outer surface of the variable aperture 20 visible to the user, thus meeting ID design requirements. On the other hand, because the buffer layer 2202 protrudes from the surface of the matte layer 2203 facing away from the cover plate 22011, it protects the matte layer 2203, reducing the chance of surface wear or shedding of the matte layer 2203 during assembly, use, or reliability testing of the variable aperture 20.

[0151] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A variable aperture (20), characterized in that: include: A fixing seat (21); 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) enclose a first track (2001); the second V-shaped groove (212) and the fourth V-shaped groove (232) enclose a second track (2002); A first rolling member (201) is located in the first track (2001); the first rolling member (201) abuts against the side walls of the first V-shaped groove (211) and the third V-shaped groove (231); the first rolling member (201) is used to roll along the first track (2001) in a first arc trajectory; a second rolling member (202) located in the second track (2002); the second rolling member (202) abuts against the side walls of the second V-shaped groove (212) and the fourth V-shaped groove (232); 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 located between the fixed seat (21) and the rotating bracket (23); and the first arc track and the second arc track are concentrically arranged about the optical axis.

2. The variable aperture (20) according to claim 1, characterized in that The fixing seat (21) is further provided with a first accommodating groove (213); The rotating bracket (23) is further provided with a second accommodating groove (233); wherein the first accommodating groove (213) and the second accommodating groove (233) enclose a third track; 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 includes a third rolling member (203), the third rolling member (203) being 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 to roll 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).

3. The variable aperture (20) according to claim 2, 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 the side wall of the fifth V-shaped groove.

4. The variable aperture (20) according to any one of claims 1 to 3, characterized in that: The radius of the first arc track is the same as the radius of the second arc track.

5. The variable aperture (20) according to claim 1, characterized in that The variable aperture (20) further comprises: a fourth rolling element (204) located in the first track (2001); a second gap is formed 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 defined 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 an extension direction of the second track (2002).

6. The variable aperture (20) according to any one of claims 1 to 5, 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 bracket (23) comprises: an annular portion (2314), 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 between the first lug (2311) and 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 and the groove wall of the second avoidance groove (2112).

7. The variable aperture (20) according to claim 6, 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).

8. The variable aperture (20) according to claim 7, characterized in that The fixing 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); A third avoidance groove (2113) is also provided on the side wall of the fixing seat (21); The rotating bracket (23) further includes a third lug (2313), the third lug (2313) being arranged on a side wall of the annular portion (2314) and connected to the annular portion (2314); the third lug (2313) being located in the third avoidance groove (2113) and having a sixth gap between the third lug (2313) and the groove wall of the third avoidance groove (2113); The first accommodating groove (213) is provided on the bottom surface of the third avoidance groove (2113); and the second accommodating groove (233) is provided on the surface of the third lug (2313) facing the fixing seat (21).

9. The variable aperture (20) according to any one of claims 6 to 8, characterized in that: The variable aperture (20) further comprises: A magnet assembly (261) is disposed on a surface of the 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).

10. The variable aperture (20) according to claim 9, 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 an annular structure.

11. The variable aperture (20) according to claim 9, 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).

12. The variable aperture (20) according to any one of claims 1 to 11, characterized in that: The variable aperture (20) further comprises: A plurality of blades (24) are provided on the rotating bracket (23), the blades (24) are slidably connected to the rotating bracket (23), and are rotatably connected to the fixed seat (21); the plurality of blades (24) are distributed in an annular shape to surround an aperture (100); An aperture cover (22) is provided on the fixing seat (21) and covers a portion of a side wall of the fixing seat (21); the rotating bracket (23) and the blade (24) are located in the aperture cover (22); and the aperture cover (22) is connected to the fixing seat (21).

13. The variable aperture (20) according to claim 12, characterized in that The aperture cover (22) comprises: The metal cover (2201) comprises a cover plate (22011) and a side plate (22012) connected to each other; 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); a first light-transmitting hole (101) is provided on the cover plate (22011), and the first light-transmitting hole (101) is connected to the aperture hole (100); 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).

14. The variable aperture (20) according to claim 13, characterized in that The aperture cover (22) further comprises a matt layer (2203), the matt layer (2203) covers the cover plate (22011), and the buffer layer (2202) is arranged around the periphery of the matt layer (2203); the buffer layer (2202) protrudes from a surface of the matt layer (2203) facing away from the cover plate (22011).

15. The variable aperture (20) according to claim 13 or 14, 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).

16. The variable aperture (20) according to claim 15, characterized in that The variable aperture (20) further comprises a flexible circuit board (27), and 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).

17. A camera module (10), characterized in that: include: Lens assembly (11); The variable aperture (20) according to any one of claims 1 to 16, wherein the variable aperture (20) is arranged on the light incident side of the lens assembly (11).

18. An electronic device, characterized in that: include: A housing (09) and a camera module (10) as claimed in claim 17, wherein the camera module (10) is arranged on the housing (09).

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