Variable aperture, camera module, electronic device

Abstract

The embodiment of the application provides a variable aperture, a camera module and an electronic device, relates to the camera technology field, and is used for reducing the probability of eccentricity of an aperture hole of the variable aperture. In the variable aperture, a fixed seat and a rotating support surround a first track and a second track. A first rolling piece and a second rolling piece between the fixed seat and the rotating support in the direction of an optical axis are respectively located on the first track and the second track. The first rolling piece rolls along the first track with a first circular arc track, and the second rolling piece rolls along the second track with a second circular arc track. In the direction of the optical axis of the variable aperture, a rotating track of the rotating support can be concentric with the first circular arc track and the second circular arc track about the optical axis.

Description

Technical Field

[0001] This application relates to the field of camera technology, and more particularly to a variable aperture, camera module, and electronic device. Background Technology

[0002] With the continuous development of electronic device integration technology, taking photos and videos has become one of the common functions of electronic devices, leading to the increasingly widespread application of cameras in electronic devices. The aforementioned cameras feature a variable aperture, which has an adjustable aperture hole. By changing the size of the aperture hole, the amount of light entering the camera can be adjusted. Currently, variable aperture cameras suffer from a serious problem of aperture hole misalignment, resulting in poor aperture accuracy and reduced product quality. Summary of the Invention

[0003] This application provides a variable aperture, a camera module, and an electronic device for reducing the probability of aperture hole misalignment in variable apertures.

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

[0005] One aspect of this application provides a variable aperture, which includes a fixed base, a rotating bracket, a first rolling element, and a second rolling element. The fixed base has a first V-groove and a second V-groove. The rotating bracket is located within the fixed base and has a third V-groove and a fourth V-groove. The first and third V-grooves form a first track, and the second and fourth V-grooves form a second track. The first rolling element is located within the first track and abuts against the sidewalls of the first and third V-grooves, and is used to roll along the first track in a first arc trajectory. The second rolling element is located within the second track and abuts against the sidewalls of the second and fourth V-grooves, and is used to roll along the second track in a second arc trajectory. 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, and the first and second arc trajectories are concentrically arranged about the optical axis.

[0006] In summary, since the first rolling element is located within the first track, it abuts against the sidewalls of both the first and third V-grooves, allowing it to roll along the extension direction of the first track in a first arc trajectory. Similarly, the second rolling element can be located within the second track, abutting against the sidewalls of both the second and fourth V-grooves, allowing it to roll along the extension direction of the second track in a second arc trajectory. Thus, the rotating bracket can be rotatably connected to the fixed seat via the first and second rolling elements. Furthermore, since the first and second arc trajectories are concentric about the optical axis, the rotation trajectory of the rotating bracket relative to the fixed seat via the first and second rolling elements is concentric with the optical axis, reducing the probability of eccentricity in the aperture of the variable aperture. Additionally, for designs where the balls are positioned between the rotor and stator sidewalls, the roundness requirements for the rotor and stator sidewalls are high. In this application, along the optical axis of the variable aperture, the first rolling element and the second rolling element can be located between the fixed seat and the rotating bracket, thus eliminating the need for high requirements on the roundness of the sidewalls of the fixed seat and the rotating bracket, which is more conducive to reducing the probability of the aperture hole of the variable aperture becoming eccentric.

[0007] In one 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 also includes a third rolling element located within the third track. The third rolling element abuts against the bottom surface of the first U-shaped groove and has a first gap with at least one sidewall of the first U-shaped groove. The third rolling element is used 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, on the one hand, since the third rolling element abuts against the bottom surface of the first U-shaped groove, when the variable aperture is subjected to a force F during assembly, use, or reliability testing, the third rolling element abutting against the bottom surface of the first U-shaped groove can support the rotating bracket, thereby dispersing the force acting on the first and second rolling elements, improving the service life of the first and second rolling elements, and ultimately improving the reliability of the variable aperture. On the other hand, as described above, the first rolling element abuts against the sidewalls of both the first and third V-grooves. The second rolling element abuts against the sidewalls of both the second and fourth V-grooves. 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 base. Based on this, by providing the aforementioned first gap between the third rolling element and at least one sidewall of the first U-groove, this first gap allows the third rolling element a certain amount of movement space within the surface perpendicular to the optical axis, preventing jamming between the rotating bracket and the fixed base.

[0008] In one 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 side wall 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 side wall of the fifth V-shaped groove, thereby making it easier for the third rolling element to roll along the fifth V-shaped groove.

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

[0010] In one alternative implementation, the radius of the first circular arc trajectory is the same as the radius of the second circular arc trajectory. This allows the first and second tracks to be at the same distance from the optical axis, thereby simplifying the manufacturing process of the variable aperture.

[0011] In one optional embodiment, the variable aperture further includes a fourth rolling element and a fifth rolling element. The fourth rolling element is located within a first track. A second gap exists between the fourth rolling element and at least one sidewall of the first or third V-groove. The fourth and first rolling elements are arranged along the extending direction of the first track. The fifth rolling element is located within a second track, and a third gap exists between the fifth rolling element and at least one sidewall of the second or fourth V-groove. The fifth and second rolling elements are arranged along the extending direction of the second track. This arrangement allows the fourth rolling element sufficient space to move within the third V-groove, thus preventing it from affecting the rolling of the first rolling element located 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, when the rotating bracket moves downwards due to applied force, the sidewall of the third V-groove abuts against the fourth rolling element. In this way, the fourth rolling element can support the rotating bracket, thereby dispersing the forces acting on the first rolling element, increasing its service life, and ultimately improving the reliability of the variable aperture. The technical effect of the fifth rolling element is similar and will not be elaborated here.

[0012] In one optional embodiment, the fixing base is an annular structure, and a first clearance groove and a second clearance groove are formed on the side wall of the fixing base. Furthermore, the rotating bracket includes an annular portion, a first lug, and a second lug. The annular portion is located within the fixing base. The first lug is disposed on the side wall of the annular portion and connected to it. The first lug is located within the first clearance groove and has a fourth gap between it and the side wall of the first clearance groove. The second lug is disposed on the side wall of the annular portion and connected to it. The second lug is located within the second clearance groove and has a fifth gap between it and the groove wall of the second clearance groove. Thus, by providing the first lug, second lug, and third lug on the fixing base that cooperate with the rotating bracket, and the first clearance groove, second clearance groove, and third clearance groove respectively, 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-groove is formed on the bottom surface of the first clearance groove. A second V-groove is formed on the bottom surface of the second clearance groove. A third V-groove is formed on the surface of the first lug facing the mounting base. A fourth V-groove is formed on the surface of the second lug facing the mounting base. This allows for full utilization of the space in the areas containing the lugs and clearance grooves, resulting in a more compact structure for the entire variable aperture and facilitating miniaturization of the product.

[0014] In one 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. A third clearance groove is also formed on the side wall of the fixed base. The rotating bracket further includes a third lug, which is disposed on the side wall of the annular portion and connected to the annular portion. The third lug is located within the third clearance groove and has a sixth gap with the groove wall of the third clearance groove. The first receiving groove is formed on the bottom surface of the third clearance groove; the second receiving groove is formed on the surface of the third lug facing the fixed base. Similarly, by fully utilizing the space of the area containing the lug and clearance groove, the entire variable aperture structure becomes more compact, which is beneficial for miniaturizing the product design.

[0015] In one optional embodiment, the variable aperture further includes a magnet assembly and a magnetic guide plate. The magnet assembly is disposed on the sidewall of the annular portion facing the mounting base. The magnetic guide plate is connected to the mounting base and is used to attract the magnet assembly along the optical axis. In this way, when the rotating bracket rotates, the magnetic assembly is attracted along the optical axis by the magnetic guide plate, reducing the likelihood of the rotating bracket detaching from the mounting base during camera module rotation and improving the reliability of the variable aperture.

[0016] In one optional embodiment, the mounting base is a plastic part, and the magnetic conductive sheet is embedded within the plastic part, the magnetic conductive sheet having a ring-shaped structure. For example, the magnetic conductive sheet and the mounting base can be formed as an integral structural component using an injection molding process. This magnetic conductive sheet can improve the rigidity of the integral structural component.

[0017] In one alternative embodiment, the magnetic conductive sheet is disposed on the bottom surface of the fixed base opposite to the rotating support. This allows the magnetic conductive sheet to be connected to the fixed base via an adhesive bonding process, simplifying the fabrication process of the variable aperture.

[0018] In one optional embodiment, the variable aperture further includes multiple blades and an aperture cover. The multiple blades are mounted on a rotating support, slidably connected to the rotating support, and rotatably connected to a fixed base. The multiple blades are arranged in a ring to surround the aperture opening. During movement, the size of the aperture opening changes accordingly. Furthermore, the aperture cover is mounted on the fixed base and partially covers the sidewall of the fixed base. The rotating support and blades are located inside the aperture cover, which is connected to the fixed base. Because the aperture cover covers part of the sidewall of the fixed base and is connected to the fixed base, the aperture cover can protect the fixed base, rotating support, and blades it covers. This prevents collisions between the fixed base, rotating support, and blades and external components of the variable aperture during assembly, use, or reliability testing.

[0019] In one optional embodiment, the aperture cover includes a metal cover and a buffer layer. The metal cover includes a cover plate and a side plate connected together. The side plate is disposed around the periphery of the cover plate and covers a portion of the side wall of the mounting base, and is connected to the mounting base. A first light-transmitting hole is formed on the cover plate, communicating with the aperture hole. The buffer layer is disposed around the periphery of the first light-transmitting hole and covers a portion of the cover plate and the side plate. Thus, since the buffer layer covers the cover plate and side plate of the metal cover, it can protect the metal cover. When the variable aperture is impacted during assembly, use, or reliability testing, the aperture cover protects the other components of the variable aperture, thereby preventing these other components from being directly subjected to external forces. Furthermore, the buffer layer can buffer external forces, reducing the force acting on the metal cover and further improving the protection of components located inside the aperture cover.

[0020] In one optional embodiment, the aperture cover further includes an anti-reflective layer that covers the cover plate. A buffer layer is disposed around the periphery of the anti-reflective layer, protruding from the surface of the anti-reflective layer opposite to the cover plate. In this case, on the one hand, the anti-reflective layer can scatter, reflect, or absorb incident light to achieve an anti-reflective effect, so that the outer surface of the variable aperture seen by the user is basically black, thereby meeting the appearance design requirements. On the other hand, since the buffer layer protrudes from the surface of the anti-reflective layer opposite to the cover plate, it can protect the anti-reflective layer, reducing the probability of surface wear or detachment of the anti-reflective layer during variable aperture assembly, use, or reliability testing.

[0021] In one optional embodiment, the mounting base is a plastic component, and the magnetic conductive sheet is embedded within the plastic component. The magnetic conductive sheet is welded to the metal cover. This improves the reliability of the connection between the mounting base and the entire aperture cover, reducing the likelihood of the mounting base and aperture cover detaching.

[0022] In one alternative embodiment, the variable aperture further includes a flexible circuit board disposed around the sidewall of the mounting base. A magnetic guide plate and a metal shield are grounded on the flexible circuit board. For example, a portion of the magnetic guide plate may be electrically connected to a grounded copper leakage area on the flexible circuit board. When the magnetic guide plate and metal shield are soldered, grounding them to the flexible circuit board can reduce electromagnetic interference.

[0023] In one optional embodiment, a first limiting post clearance hole can be provided on the metal cover of the aperture cover, and the end of the first limiting post facing away from the fixing base can be located within the first limiting post clearance hole. In this case, there can be a gap between the end of the first limiting post facing away from the fixing base and the bottom of the first limiting post clearance hole, thereby preventing structural interference between the first limiting post and the metal cover. Furthermore, a second limiting post clearance hole can be provided on the metal cover of the aperture cover, and the end of the sliding guide hole facing away from the fixing base can be located within the second limiting post clearance hole. The technical effect of the second limiting post clearance hole is the same as described above, and will not be repeated here.

[0024] In another aspect, this application provides a camera module including a lens assembly and any of the variable apertures described above, 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 foregoing embodiments, and will not be repeated here.

[0025] In another aspect, this application provides an electronic device including a housing and any of the camera modules described above, the camera module being disposed on the housing. The above-described electronic device has the same technical effects as the variable aperture provided in the foregoing embodiments, and will not be repeated here. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

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

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

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

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

[0031] Figure 6 for Figure 4 A schematic diagram of another exploded structure for a variable aperture;

[0032] Figure 7 for Figure 3 Another schematic diagram of a variable aperture;

[0033] Figure 8 for Figure 4A schematic diagram of another exploded structure for a variable aperture;

[0034] Figure 9 for Figure 4 A schematic diagram of another exploded structure for a variable aperture;

[0035] Figure 10 for Figure 4 A schematic diagram of another exploded structure for a variable aperture;

[0036] Figure 11 For along Figure 9 A sectional view obtained by cutting along the dashed lines O3-O0-O4 in the figure;

[0037] Figure 12 For along Figure 9 Another sectional view obtained by cutting along the dashed lines O3-O0-O4 in the figure;

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

[0039] Figure 14 for Figure 12 Another enlarged structural diagram at point B;

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

[0041] Figure 16 For along Figure 9 A sectional view obtained by cutting along the dashed lines O4-O0-O5 in the diagram;

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

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

[0044] Figure 19 For along Figure 18 A sectional view obtained by cutting along the dashed lines O6-O7 in the figure;

[0045] Figure 20 For along Figure 18 A sectional view obtained by cutting along the dashed lines O8-O9 in the figure;

[0046] Figure 21 for Figure 4 A schematic diagram of another exploded structure for a variable aperture;

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

[0048] Figure 23 for Figure 3 Another schematic diagram of a variable aperture;

[0049] Figure 24 For along Figure 8 A sectional view obtained by cutting along the dashed lines P1-P2 in the figure;

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

[0051] Figure 26 for Figure 3 Another schematic diagram of a variable aperture;

[0052] Figure 27 for Figure 4 A schematic diagram of another exploded structure for a variable aperture;

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

[0054] Figure 29 For along Figure 27 A bottom view of the aperture cover obtained along the Z-axis;

[0055] Figure 30 for Figure 24 An enlarged view of point F in the image;

[0056] Figure 31 This is a schematic diagram of the structure of an aperture cover provided in an embodiment of this application.

[0057] Figure label:

[0058] 01-Electronic device; 02-Display screen; 03-Back cover; 04-Middle frame; 05-Processor; 06-Opening; 07-Lens cap; 08-Camera hole; 09-Housing; 10-Camera module; 20-Variable aperture; 11-Lens assembly; 12-Motor; 100-Aperture hole; 13-Filter; 14-Circuit board; 15-Image sensor; 21-Mount; 22-Aperture cover; 23-Rotating bracket; 24-Blade; 2 111-First clearance groove; 2112-Second clearance groove; 2113-Third clearance groove; 2311-First lug; 2312-Second lug; 2313-Third lug; 2314-Annular portion; 2401-Rotating hole; 2402-Sliding guide hole; 2101-First limiting post; 2301-Second limiting post; 25-Washer; 102-Second light-transmitting hole; 201-First rolling element; 202-Second rolling element; 20 3-Third rolling element; 211-First V-groove; 212-Second V-groove; 213-First receiving groove; 231-Third V-groove; 232-Fourth V-groove; 233-Second receiving groove; 2001-First track; 2002-Second track; 2003-Third track; 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 - Reinforcing plate; 272 - Position sensor; 273 - Capacitor; 28 - Magnetic sheet; 2201 - Metal cover; 22011 - Cover plate; 22012 - Side plate; 101 - First light-transmitting hole; 2202 - Buffer layer; 30 - Top cover; 21011 - First limiting post clearance hole; 22021 - Connecting post; 23011 - Second limiting post clearance hole; 2203 - Matting layer. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

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

[0061] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "lateral," "longitudinal," "horizontal," and "vertical" may be defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and may change accordingly depending on the orientation of the components in the accompanying drawings.

[0062] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed mechanical connection, a detachable mechanical connection, or an integral part; or, "connection" may be a direct connection or an indirect connection through an intermediate medium.

[0063] Furthermore, unless otherwise explicitly specified and limited, the term "electrical connection" should be interpreted broadly. For example, "electrical connection" can be a direct electrical connection, such as physical contact and electrical conduction between two components; it can also be understood as the electrical connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB), 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 a non-contact manner, such as an electrical connection between two components using capacitive coupling to transmit electrical signals.

[0064] In the embodiments of this application, the terms "vertical" and "parallel" respectively indicate approximately vertical and approximately parallel within a certain error range. This error range can be a range where the deviation angle relative to absolute verticality and absolute parallelism is less than or equal to 5°, 8°, or 10°, respectively, and is not specifically limited here.

[0065] In the embodiments of this application, directional terms such as "up," "down," "left," and "right" may be defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0066] In the accompanying drawings of the embodiments of this 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] This application provides an electronic device that can have a display function. This electronic device can be applied to various communication systems or protocols, such as Bluetooth (BT) communication technology, Global Positioning System (GPS) communication technology, Global System for Mobile Communication (GSM) communication technology, Wireless Fidelity (WiFi) communication technology, Wideband Code Division Multiple Access (WCDMA) communication technology, Long Term Evolution (LTE) technology, 5G communication technology, and other future communication technologies.

[0068] The electronic devices in this application embodiment can be mobile phones, tablets, laptops, smart home devices, smart wearable devices (e.g., smartwatches, smart bracelets, smart glasses, smart helmets), virtual reality (VR) electronic devices, augmented reality (AR) electronic devices, etc. Electronic devices can also be handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, electronic devices in 5G networks, or electronic devices in future evolved public land mobile networks (PLMNs), etc., and this application embodiment is not limited to these categories.

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

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

[0071] The aforementioned electronic device 01 may further include a processor 05 electrically connected to the display screen 02. The processor 05 may be disposed on the side of the middle frame 04 away from the display screen 02. The rear cover 03 is fastened to the middle frame 04, thereby forming an installation space between the rear cover 03 and the middle frame 04 for accommodating the processor 05, 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 described above may 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. The different processing units may be independent devices or integrated into one or more processors.

[0073] In addition, the aforementioned electronic device 01 may also include a gyroscope 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, a headphone jack, a sensor module, buttons, and a camera, all electrically connected to the processor 05. The sensor module may include pressure sensors, gyroscope sensors, barometric pressure sensors, magnetic sensors, accelerometers, distance sensors, proximity sensors, fingerprint sensors, temperature sensors, touch sensors, ambient light sensors, and bone conduction sensors, etc.

[0074] In some embodiments, in order to enable the electronic device 01 to perform image acquisition, i.e., shooting function, the electronic device 01 provided in the embodiments of this application may further include a camera module 10, which may be a front-facing camera module or a rear-facing camera module. For example, the front-facing camera module or the rear-facing camera module may include multiple such... Figure 1 The camera module 10 is shown. Taking a rear-facing camera module as an example, the rear cover 03 is connected to the mid-frame 04 to form a housing 09, and the camera module 10 is mounted on the housing 09. The rear cover 03 has an opening 06 for exposing part of the camera module 10. In addition, the electronic device 01 also includes a lens cover 07, which is fastened to the camera module 10 to protect it. The lens cover 07 has a camera hole 08 for exposing the lens of the camera module 10.

[0075] The aforementioned camera module 10 can be one or more of a standard camera module, a telephoto camera module, a wide-angle camera module, an ultra-telephoto camera module, and an ultra-wide-angle camera module. This application does not limit the number of camera modules 10. Figure 1 This example illustrates the concept of a rear camera module consisting of three camera modules (10).

[0076] The structure of the camera module 10 is illustrated below with examples. In some embodiments of this application, such as... Figure 2 As shown, the camera module 10 may include a variable aperture 20, a lens assembly 11, and a motor 12. For ease of description, an XYZ coordinate axis is established in the accompanying drawings, where the Z direction can be the optical axis O1-O2 direction of the variable aperture 20. The XY plane formed by the X and Y directions can be perpendicular to the optical axis O1-O2 direction of the variable aperture 20.

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

[0078] Furthermore, the motor 12 can drive the lens assembly 11 to move along the Z direction to achieve autofocus (AF). Alternatively, as another example, the motor 12 can also drive the lens assembly 11 to move in the XY plane or rotate about the optical axis O1-O2 of the lens assembly 11 to achieve optical image stabilization.

[0079] Based on this, in order to enable the light incident on the camera module 10 to undergo photoelectric conversion to generate image information, the following continues... 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 coupled to the circuit board 14, thereby enabling the image sensor 15 to communicate with a processor 05 (e.g., a processor 05 disposed on the circuit board 14) Figure 1 (As shown) Coupling. For example, the circuit board 14 described above can be a PCB or a flexible printed circuit (FPC), and this application does not limit it to this.

[0080] The filter 13 is disposed on the light-incident side of the image sensor 15. For example, the filter 13 can be an infrared filter, which can filter out infrared light from ambient light and allow visible light to pass through. Alternatively, for another example, the filter 13 can be a dual-bandpass filter, capable of selecting wavelengths within two regions of ambient light to pass through, such as visible light and infrared light, or visible light and ultraviolet light, or ultraviolet light and infrared light, etc.

[0081] Furthermore, the image sensor 15 is positioned at the focal plane of the camera module 10, thereby enabling it to receive the light image of the subject converged by the lens assembly 11. For example, the image sensor 15 can be a CIS or a charge-coupled device (CCD) image sensor; this application does not limit this to any particular type.

[0082] As can be seen from the above, Figure 3 The variable aperture 20 shown can adjust the amount of external light entering the camera module 10. The structure of this variable aperture 20 is illustrated below. In some embodiments of this application, such as... Figure 4 As shown, the variable aperture 20 includes a base 21 and an aperture case 22. The aperture case 22 is mounted on the base 21 and can cover a portion of the side wall of the base 21. The aperture case 22 is connected to the base 21.

[0083] Based on this, such as Figure 5As shown, the variable aperture 20 may further include a carrier 23 and multiple blades 24. The carrier 23 and blades 24 are located within the aperture cover 22. Since the aperture cover 22 encloses a portion of the sidewall of the mounting base 21 and is connected to the mounting base 21, the aperture cover 22 can protect the mounting base 21, carrier 23, and blades 24 it covers. This prevents collisions between the mounting base 21, carrier 23, and blades 24 and external components of the variable aperture 20 during assembly, use, or reliability testing.

[0084] Furthermore, the rotating bracket 23 is located within the fixed base 21, and the rotating bracket 23 can be rotatably connected to the fixed base 21. Therefore, the rotating bracket 23 can serve as the rotor in the variable aperture 20, moving along... Figure 5 The arc-shaped arrow indicates rotation relative to the fixed base 21, which serves as the stator. Furthermore, multiple blades 24 are mounted on the rotating support 23, and these blades 24 are slidably connected to the rotating support 23 and rotatably connected to the fixed base 21. These multiple blades 24 are arranged in a ring to surround the aperture 100.

[0085] In order to house the rotating bracket 23 within the fixed base 21, in some embodiments of this application, such as Figure 6 As shown, the rotating bracket 23 may include an annular portion 2314 and a first lug 2311, a second lug 2312, and a third lug 2313 disposed on the sidewall of the annular portion 2314. The first lug 2311, the second lug 2312, and the third lug 2313 can all be connected to the annular portion 2314. The annular hollow region of the annular portion 2314 can connect with the aperture hole 100 (e.g., ...). Figure 5 (As shown) are connected to allow incident light to pass through. For example, the first lug 2311, the second lug 2312 and the third lug 2313 can be evenly distributed on the sidewall of the annular portion 2314.

[0086] In addition, continue as Figure 6 As shown, the mounting base 21 can be an annular structure, and the annular hollow area of ​​the mounting base 21 can be connected to the aforementioned aperture hole 100 (e.g., Figure 5 (As shown) are connected. Furthermore, the side wall of the fixing base 21 is provided with a first clearance groove 2111, a second clearance groove 2112, and a third clearance groove 2113. Based on this, as... Figure 7 As shown, the annular portion 2314 of the rotating bracket 23 can be located inside the fixed base 21. In this way, the thicknesses (along the Z direction) of the rotating bracket 23 and the fixed base 21 can overlap, thereby reducing the thickness of the variable aperture 20.

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

[0088] In this way, by providing the first lug 2311, the second lug 2312, and the third lug 2313 on the fixed base 21 to cooperate with the first clearance groove 2111, the second clearance groove 2112, and the third clearance groove 2113 respectively, the rotation of the rotating bracket 23 can be limited in the XY plane (the surface perpendicular to the optical axis). For example, the sum of the gaps between the side walls of the clearance groove on opposite sides and the lugs in the clearance groove, such as the sum of the gaps between the first lug 2311 and the two side walls of the first clearance groove 2111, i.e., 2×H4, can be the rotation stroke of the rotating bracket 23 relative to the fixed base 21.

[0089] The above example illustrates the use of a rotating bracket 23 with three lugs. In other embodiments of this application, the rotating bracket 23 may have one, two, or more than three lugs. This application does not limit the number of lugs. The number of clearance slots on the fixed base 21 is consistent with the number of lugs.

[0090] For ease of explanation, the following description uses the example of a rotating bracket 23 having three lugs, namely a first lug 2311, a second lug 2312, and a third lug 2313, and a fixing base 21 having three clearance grooves, namely a first clearance groove 2111, a second clearance groove 2112, and a third clearance groove 2113. Furthermore, the above description uses the example of a portion of the rotating bracket 23, such as the annular portion 2314, being located within the fixing base 21, to illustrate the arrangement of the rotating bracket 23 within the fixing base 21. In other embodiments of this application, the entire rotating bracket 23 may be disposed within the fixing base 21.

[0091] Furthermore, in order to enable the blade 24 to slide and connect with the rotating support 23, and to enable the blade 24 to rotate and connect with the fixed base 21, the aforementioned variable aperture 20 may also 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 fixing base 21 facing the blade 24, and is connected to the fixing base 21. The second limiting post 2301 is disposed on the surface of the rotating bracket 23 facing the blade 24, and is connected to the rotating bracket 23.

[0092] In this situation, continue as follows Figure 8 As shown, each blade 24 may have a rotation hole 2401 and a sliding guide hole 2402. A first limiting post 2101 connected to the fixed base 21 can be located within the rotation hole 2401, allowing the blade 24 to rotate around the first limiting post 2101, thereby achieving a rotational connection between the blade 24 and the fixed base 21. Furthermore, a second limiting post 2301 connected to the rotating bracket 23 can extend into the sliding guide hole 2402 and slide along the sliding guide hole 2402, thereby achieving a sliding connection between the blade 24 and the rotating bracket 23.

[0093] In this way, during the rotation of the rotating bracket 23 relative to the fixed base 21, the second limiting post 2301 on the rotating bracket 23 will slide along the sliding guide hole 2402 on the blade 24 (as shown in the figure). Figure 8 As shown, the blades 24 move, thereby pushing the blades 24 to rotate along the axis of the first limiting post 2101. During the movement of the aforementioned blades 24, the size of the aperture 100 changes accordingly. The sliding guide hole 2402 (as shown) Figure 8 The two ends of the aperture hole 100 are the extreme positions of the second limiting post 2301. When the second limiting post 2301 slides to either of the two extreme positions, the aperture diameter of the aperture hole 100 can be changed to the maximum aperture diameter or the minimum aperture diameter.

[0094] Based on this, the aperture 100 can control the incident light onto the lens assembly 11 (e.g., Figure 3 The amount of light (as shown). For example, the minimum aperture of the aperture 100 can be matched with the first limiting aperture setting of the variable aperture 20, such as the minimum aperture setting. In this case, the light throughput entering the lens assembly 11 through the variable aperture 20 can be minimized. Conversely, in some embodiments of this application, the maximum aperture of the aperture 100 can be matched with the second limiting aperture setting of the variable aperture 20, such as the maximum aperture setting. In this case, the light throughput entering the lens assembly 11 through the variable aperture 20 can be maximized.

[0095] Alternatively, in some other embodiments of this application, such as Figure 9As shown, the variable aperture 20 may further include a spacer 25, which is stacked on the side of the plurality of blades 24 facing the mounting base 21. A second light-transmitting hole 102 is formed on the spacer 25, and the second light-transmitting hole 102 communicates with the aperture hole 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 hole 100 with the maximum aperture formed by the plurality of blades 24. When the aperture hole 100 is at its maximum aperture, the blades 24 can be located 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 ensure that during the rotation of the rotating bracket 23 relative to the fixed base 21, it revolves around the center of the aforementioned aperture hole 100, that is, the optical axis O1-O2 of the variable aperture 20 (as shown in the image), Figure 2 (As shown) rotate, as Figure 10 As shown, the fixed base 21 has a first V-groove 211 and a second V-groove 212. The rotating bracket 23 has a third V-groove 231 and a fourth V-groove 232.

[0097] For example, continue as follows Figure 10 As shown, when the rotating bracket 23 has a first lug 2311 and a second lug 2312, and the fixed base 21 has a first clearance groove 2111 and a second clearance groove 2112, the first V-shaped groove 211 can be formed on the bottom surface of the first clearance groove 2111, and the second V-shaped groove 212 can be formed on the bottom surface of the second clearance groove 2112. Furthermore, a third V-shaped groove 231 is formed on the surface of the first lug 2311 facing the fixed base 21, and a fourth V-shaped groove 232 is formed on the surface of the second lug 2312 facing the fixed base 21. In this way, the dimensional space of the areas containing the lugs and clearance grooves can be fully utilized, making the entire variable aperture 20 structure more compact and facilitating product miniaturization.

[0098] Based on this, such as Figure 11 (along Figure 9 As shown in the cross-sectional view obtained by cutting along the dashed lines O3-O0-O4, the first V-groove 211 on the fixed base 21 and the third V-groove 231 on the rotating bracket 23 enclose the first track 2001. The second V-groove 212 on the fixed base 21 and the fourth V-groove 232 on the rotating bracket 23 enclose the second track 2002. Furthermore, as... Figure 12 (along Figure 9As shown by the dashed lines O3-O0-O4 in the diagram, 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 base 21 and the rotating support 23. For example, either the first rolling element 201 or the second rolling element 202 may be a ball bearing or a roller; this application does not limit this.

[0099] Based on this, such as Figure 13 ( Figure 12 As shown in the enlarged view at point B in the figure, the first rolling element 201 can be located within the first track 2001. The first rolling element 201 abuts against the side wall a1 of the first V-groove 211 and the side wall a2 of the third V-groove 231, that is, the first rolling element 201 is in a zero-fit state with the side wall a1 of the first V-groove 211 and the side wall a2 of the third V-groove 231. Similarly, continuing as follows... Figure 12 As shown, the second rolling element 202 can be located within the second track 2002. This second rolling element 202 can engage with the second V-groove 212 (e.g., ...). Figure 11 The side wall of the second rolling element 202 (as shown) abuts against the side wall of the fourth V-groove 232, meaning that the second rolling element 202 can be in a zero-fit state with both the side wall of the second V-groove 212 and the side wall of the fourth V-groove 232.

[0100] In this embodiment of the application, the V-groove refers to the two opposite sidewalls of the groove (e.g., Figure 13 In the first V-groove 211, the two opposing sidewalls (a1) are inclined, meaning there is an included angle between them. Furthermore, the distance between the two opposing sidewalls is larger at the opening of the groove and smaller at the bottom, causing the cross-section of the groove (parallel to the ZY plane) to be V-shaped, or... Figure 14 The above is merely an example of a V-shaped groove and does not constitute a limitation on the structure of the V-shaped groove. As long as the groove body is inclined relative to the two side walls, and the distance between the two side walls at the opening of the groove body is greater than the distance between the two side walls at the bottom of the groove body, it is acceptable.

[0101] Based on this, such as Figure 15 (along Figure 9 As shown in the top view obtained from direction C in the diagram, the first rolling element 201 is used to roll along the first track 2001 in a first circular arc trajectory S1. The second rolling element 202 is used to roll along the second track 2002 in a second circular arc trajectory S2. The first circular arc trajectory S1 and the second circular arc trajectory S2 are concentrically arranged about the optical axis O1-O2. In this way, the aforementioned rotating bracket 23 can be rotatably connected to the fixed base 21 through the first rolling element 201 and the second rolling element 202.

[0102] For example, the concentric arrangement of the first arc trajectory S1 and the second arc trajectory S2 about the optical axis O1-O2 can mean that the center of the first arc trajectory S1 and the center of the second arc trajectory S2 can be located on the aforementioned optical axis Q1-O2. For instance, the first arc trajectory S1 and the second arc trajectory S2 can be located in the same plane, in which case the centers of the first arc trajectory S1 and the second arc trajectory S2 can coincide on the optical axis Q1-O2. Alternatively, the first arc trajectory S1 and the second arc trajectory S2 can be located in different planes, in which case the centers of the first arc trajectory S1 and the second arc trajectory S2 do not coincide on the optical axis Q1-O2.

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

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

[0105] In summary, the embodiments provided in this application are as follows: Figure 10 The variable aperture 20 shown may include a fixed base 21, a rotating bracket 23, a first rolling element 201, and a second rolling element 202. Accordingly, the rotating bracket 23 is located within the fixed base 21, along the optical axis O1-O2 of the variable aperture 20, and the first rolling element 201 and the second rolling element 202 may be located between the fixed base 21 and the rotating bracket 23. Furthermore, the fixed base 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. Wherein, as... Figure 11As shown, the first V-groove 211 on the fixed base 21 and the third V-groove 231 on the rotating bracket 23 form the first track 2001. The second V-groove 212 on the fixed base 21 and the fourth V-groove 232 on the rotating bracket 23 form the second track 2002.

[0106] Based on this, such as Figure 15 As shown, the first rolling element 201 is located within the first track 2001. The first rolling element 201 abuts against both the side wall a1 of the first V-groove 211 and the side wall a2 of the third V-groove 231, thereby enabling the first rolling element 201 to roll along the extension direction of the first track 2001 in a first circular arc trajectory S1. Similarly, the second rolling element 202 can be located within the second track 2002, and the second rolling element 202 can abut against the second V-groove 212 (e.g., ...). Figure 11 The sidewall of the first roller 201 and the sidewall of the fourth V-groove 232 abut against each other, thereby allowing the second roller 202 to roll along the extension direction of the second track 2002 in a second circular arc trajectory S2. The rotating bracket 23 can be rotatably connected to the fixed base 21 via the first roller 201 and the second roller 202.

[0107] Based on this, since the first arc trajectory S1 and the second arc trajectory S2 are concentric about the optical axis O1-O2, during the rotation of the rotating bracket 23 relative to the fixed seat 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 about the optical axis O1-O2, thereby reducing the probability of the aperture hole 100 of the variable aperture 20 being off-center. Furthermore, for schemes where the balls are placed between the rotor sidewall and the stator sidewall, the roundness requirements for the rotor sidewall and the stator sidewall are relatively high. However, in this application, along the optical axis O1-O2 direction of the variable aperture 20, the first rolling element 201 and the second rolling element 202 can be located between the fixed seat 21 and the rotating bracket 23, thus eliminating the need for high roundness requirements for the sidewalls of the fixed seat 21 and the rotating bracket 23, and further reducing the probability of the aperture hole 100 of the variable aperture 20 being off-center.

[0108] Furthermore, to improve the reliability of the variable aperture 20, in some embodiments of this application, the following continues... Figure 10As shown, the fixed base 21 is also provided with a first receiving groove 213, and the rotating bracket 23 is also provided with a second receiving groove 233. In some embodiments of this application, when the rotating bracket 23 has a third lug 2313 and the fixed base 21 is provided with a third clearance groove 2113, the first receiving groove 213 can be formed on the bottom surface of the third clearance groove 2113, and the second receiving groove 233 can be formed on the surface of the third lug 2313 facing the fixed base 21. Similarly, the dimensions of the area where the third lug 2313 and the third clearance groove 2113 are located can be effectively utilized to improve the space utilization of the variable aperture 20.

[0109] Based on this, such as Figure 16 (along Figure 9 As shown in the cross-sectional view obtained by cutting along the dashed lines O4-O0-O5, the first receiving groove 213 and the second receiving groove 233 enclose the third track 2003. At least one of the aforementioned first receiving groove 213 and second receiving groove 233 is a first U-shaped groove. For example, as... Figure 17 ( Figure 16 As shown in the enlarged view at point D in the figure, the first receiving groove 213 is the fifth V-shaped groove, and the second receiving groove 233 is the first U-shaped groove.

[0110] In this embodiment of the application, the U-shaped groove refers to the two opposite sidewalls of the groove (e.g., Figure 17 In the middle, the second receiving groove 233, that is, the two side walls (a3) ​​opposite to the first U-shaped groove, are arranged in parallel. This makes the cross-section of the groove (parallel to the ZY plane) U-shaped.

[0111] Based on this, the aforementioned variable aperture 20 may also include, for example: Figure 17 The third rolling element 203 is shown. This third rolling element 203 can be located within the third track 2003, and it abuts (i.e., is in contact with) the bottom surface a4 of the first U-shaped groove (i.e., the second receiving groove 233). Furthermore, the third rolling element 203 can have a first gap H1 between itself and at least one sidewall a3 of the first U-shaped groove (i.e., the second receiving groove 233), and the third rolling element 203 is used to roll within the third track 2003. Along the optical axis direction (i.e., the Z direction), the third rolling element 203 is located between the fixed base 21 and the rotating bracket 23, such that the rotating bracket 23 can also rotate relative to the fixed base 21 via the third rolling element 203.

[0112] In this situation, 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 (i.e., the second receiving groove 233), the variable aperture 20 can withstand the impact during assembly, use, or reliability testing. Figure 17When a downward force F is applied along the direction of the arrow, the third rolling element 203, which abuts against the bottom surface a4 of the first U-shaped groove, can support the rotating bracket 23, thereby dispersing the force F applied to the first rolling element 201 and the second rolling element 202, improving the service life of the first rolling element 201 and the second rolling element 202, and ultimately improving the reliability of the variable aperture 20.

[0113] On the other hand, as can be seen from the above, Figure 12 The first rolling element 201 in the middle and Figure 11 The sidewalls of the first V-groove 211 and the third V-groove 231 shown abut against each other. Figure 12 The second rolling element 202 in Figure 11 The sidewalls of the second V-groove 212 and the fourth V-groove 232 shown abut against each other. This allows the rotating bracket 23 to rotate relative to the fixed base 21, such as... 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 aforementioned first gap H1 between the third rolling element 203 and at least one sidewall 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 room to move on the surface perpendicular to the optical axis (i.e., in the XY plane), reducing the possibility of interference and preventing jamming between the rotating bracket 23 and the fixed seat 21.

[0114] The above is based on Figure 17 In this example, the first receiving groove 213 is a fifth V-shaped groove, and the second receiving groove 233 is a first U-shaped groove. In this way, under the influence of gravity, the third rolling element 203 more easily abuts against the side wall of the fifth V-shaped groove (i.e., the first receiving groove 213), 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 concentrically arranged with the third V-shaped groove 231 and the fourth V-shaped groove 232.

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

[0116] The above example illustrates how improving the reliability of the variable aperture 20 is achieved by using a third rolling element 203 located within the third track 2003 and abutting against a portion of the rotating support 23. In other embodiments of this application, the variable aperture 20 may further include, for example... Figure 18 (along Figure 9 The fourth rolling element 204 and the fifth rolling element 205 are shown in the top view obtained from direction C in the diagram. This application does not limit the number of the fourth rolling element 204 and the fifth rolling element 205. Figure 18 This example uses a fourth rolling element 204 and a fifth rolling element 205 as examples.

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

[0118] In addition, such as Figure 19 (along Figure 18 As shown in the cross-sectional view obtained by cutting along the dashed lines O6-O7, the fourth rolling element 204 can have a second gap H2 between itself and at least one sidewall a2 of the third V-groove 231 on the rotating bracket 23 (or at least one sidewall of the first V-groove 211 on the fixed seat 21). This allows the fourth rolling element 204 to have a certain amount of room to move within the third V-groove 231 (or the first V-groove 211), thus not affecting the first rolling element 201 located within the same first track 2001 (such as...). Figure 18 The rolling motion (as shown) reduces the probability of jamming between the rotating bracket 23 and the fixed seat 21.

[0119] Furthermore, during assembly, use, or reliability testing, the variable aperture 20 may be subjected to... Figure 19 When a downward force F is applied along the direction of the arrow, the rotating bracket 23 moves downward, causing the side wall a2 of the third V-groove 231 (or the side wall of the first V-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 stress deformation of the rotating bracket 23 and the first rolling element 201, increasing the service life of the first rolling element 201, and ultimately improving the reliability of the variable aperture 20.

[0120] And, as Figure 20 (along Figure 18 As shown in the cross-sectional view obtained by cutting along the dashed lines O8-O9 in the figure, the fifth rolling element 205 can have a third gap H3 between itself and at least one sidewall a5 of the fourth V-groove 232 on the rotating bracket 23 (or at least one sidewall of the second V-groove 212 on the fixed seat 21). Similarly, this will not affect the second rolling element 202 located in the same second track 2002 (such as...). Figure 18The variable aperture 20 rolls (as shown). Furthermore, during assembly, use, or reliability testing, the fifth rolling element 205 can abut against the side wall a5 of the fourth V-groove 232 on the rotating bracket 23 (or, the side wall of the second V-groove 212 on the fixed base 21). The fifth rolling element 205 can support the rotating bracket 23, improving the service life of the second rolling element 202.

[0121] Based on this, such as 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 aforementioned variable aperture 20 may include at least one drive component 26. For example, Figure 21 The example given is a variable aperture 20 comprising two drive components 26. These drive components 26 may include a magnet component 261 and a coil 262.

[0122] In some embodiments of this application, the following continues... Figure 21 As shown, the magnet assembly 261 can be disposed on the side wall of the annular portion 2314 of the rotating bracket 23 facing the fixed base 21. For example, a mounting groove 2610 can be formed in the annular portion 2314, the magnet assembly 261 can be disposed within the mounting groove 2610, and connected to the rotating bracket 23. Furthermore, the variable aperture 20 may also include a flexible printed circuit board (FPC) 27, which can surround the periphery of the fixed base 21. The coil 262 can be disposed on the flexible circuit board 27 and electrically connected to the flexible circuit board 27 to supply power to the coil 262 through the flexible circuit board 27.

[0123] For example, such as Figure 22 As shown, when the flexible circuit board 27 is bent into a ring shape, the coil 262 can be disposed on the inner side of the flexible circuit board 27. Figure 23 As shown, the mounting base 21 has mounting holes 2620, when the flexible circuit board 27 ( Figure 22 As shown, when the coil 262 is wound around the periphery of the mounting base 21, it can be positioned within the mounting hole 2620. In this way, as... Figure 24 (along Figure 8 As shown in the cross-sectional view obtained by cutting along the dashed lines P1-P2, the coil 262 can be positioned relative to the magnet assembly 261 mounted on the rotating bracket 23.

[0124] Continue as Figure 21 As shown, the variable aperture 20 may also include a reinforcing plate 271, a position sensor 272, and a capacitor 273. Continuing as... Figure 22As shown, the reinforcing plate 271 can be disposed on the outer side of the flexible circuit board 27 and opposite to the position of the coil 262. That is, the vertical projection of the coil 262 on the flexible circuit board 27 overlaps with the vertical projection of the reinforcing plate 271 on the flexible circuit board 27. For example, the rigidity of the reinforcing plate 271 can be greater than the rigidity of the flexible circuit board 27, thereby supporting the coil 262 and ensuring the reliability of the electrical connection between the coil 262 and the flexible circuit board 27. For example, the reinforcing plate 271 can be a steel plate or a rigid plastic plate.

[0125] The aforementioned position sensor 272 can be a sensor or chip capable of position detection, used to detect the rotational position of the rotating bracket 23, thereby achieving precise control of the aperture hole 100 (e.g., Figure 9 The size is intended to be as shown. For example, the position sensor 272 can be a Hall device. Furthermore, capacitor 273 is used to filter the signal input to the position sensor 272 to remove stray signals. In some embodiments of this application, continuing as... Figure 22 As shown, when the variable aperture 20 has two coils 262, the position sensor 272 and capacitor 273 can be respectively not set in the space enclosed by the two coils 262, thereby achieving the effect of improving the space utilization rate of the internal components 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. This force can drive the magnet assembly 261 to rotate the rotating bracket 23 relative to the fixed base 21. Since the magnet assembly 261 is mounted on the rotating bracket 23, which acts as the mover, the variable aperture 20 can be a moving magnet type variable aperture.

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

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

[0129] Based on this, to prevent the rotating bracket 23 from detaching from the fixed base 21 during rotation, in some other embodiments of this application, such as... Figure 24 As shown, the aforementioned variable aperture 20 can also include a magnetic guide plate 28. This magnetic guide plate 28 can be connected to the mounting base 21, and along the optical axis O1-O2, the magnetic guide plate 28 is used to attract the magnet assembly 261.

[0130] For example, the magnetically conductive sheet 28 described above may contain metals capable of attracting ferromagnetic materials, such as iron, nickel, and cobalt. For instance, the magnetically conductive sheet 28 may be a stainless steel sheet, or simply a steel sheet. The arrangement of the metal material capable of being attracted by magnetic materials in the following embodiments of this application is the same as described above, and will not be repeated here.

[0131] In this way, continue as Figure 24 As shown, when the rotating bracket 23 rotates, it attracts the magnet component 261 along the optical axis O1-O2 through the magnetic sheet 28, which can reduce the disengagement of the rotating bracket 23 from the fixed base 21 during the rotation of the camera module 10 and improve the reliability of the variable aperture 20.

[0132] For example, such as Figure 24 As shown, the magnetic conductive sheet 28 is embedded in the fixing base 21. Based on this, as... Figure 25 As shown, the mounting base 21 can be a plastic part. In some embodiments, the magnetic conductive sheet 28 can be an annular structure, such that the vertical projection of the magnet assembly 261 in the plane perpendicular to the optical axis O1-O2, i.e., 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 mounting base 21 can be formed as an integral structural component by an insert molding process. The magnetic conductive sheet 28 can improve the rigidity of the entire integral structural component.

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

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

[0135] Alternatively, in other embodiments, such as 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. This allows the magnetic conductive sheet 28 to be connected to the fixed base 21 via an adhesive bonding process, simplifying the fabrication process of the variable aperture 20. The above example illustrates the use of a ring-shaped magnetic conductive sheet 28. In other embodiments of this application, the shape of 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 ease of explanation, the following examples all use a ring-shaped magnetic conductive sheet 28 embedded within the fixed base 21 as an example.

[0136] In some embodiments of this application, such as 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 is arranged around the periphery of the fixed base 21. The rotating bracket 23 is placed inside the fixed base 21, and a shim 25 and multiple blades 24 are sequentially arranged on the upper surface of the rotating bracket 23. Finally, an aperture cover 22 is placed over the assembled structure. This aperture cover 22 can be connected to the fixed base 21, allowing the aperture cover 22 to enclose the fixed base 21, rotating bracket 23, flexible circuit board 27, shims 25, and blades 24 within it.

[0137] In related technologies, such as Figure 28 As shown, a top cover 30 is provided on the mounting base 21, and the top cover 30 is sheet-shaped. Since the top cover 30 does not cover the mounting base 21, it is prone to detachment after assembly, use, or reliability testing of the variable aperture, leading to problems such as blade misalignment. In contrast, the aperture cover 22 provided in this application covers the other components of the variable aperture 20, making it less prone to detachment and improving the reliability of the variable aperture 20.

[0138] Based on this, in some embodiments of this application, the following continues... Figure 27As shown, the aforementioned 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 covers 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 provided on the cover plate 22011, and the first light-transmitting hole 101 may communicate with the aperture hole 100. In addition, the buffer layer 2202 may be arranged around the periphery of the first light-transmitting hole 101, and the buffer layer 2202 covers a portion of the cover plate 22011 and the side plate 22012.

[0139] In this way, since the buffer layer 2202 covers the cover plate 22011 and side plate 22012 of the metal cover 2201, the metal cover 2201 can be protected. When the variable aperture 20 is impacted during assembly, use, or reliability testing, the aperture cover 22 protects the other components of the variable aperture 20, thus preventing these other components from being directly subjected to external forces. In addition, the buffer layer 2202 can buffer external forces, reduce the force acting on the metal cover 2201, and further improve the protection of the components located inside the aperture cover 22.

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

[0141] Alternatively, in some other embodiments of this application, when the buffer layer 2202 is made of the aforementioned soft rubber material, the aforementioned embedding injection molding process can also be used to form the buffer layer 2202 and the metal cover 2201 as an integral structure. Based on this, as Figure 29 (along Figure 27 As shown in the bottom view of the aperture cover obtained in the Z direction, a through hole can be formed in the metal cover 2201. During the above-mentioned embedding injection molding process, soft rubber material can flow into the through hole to form a buffer layer 2202 with connecting posts 22021. The connecting posts 22021 penetrate the through hole of the metal cover 2201 and are connected to the metal cover 2201, thereby improving the connection reliability between the buffer layer 2202 and the metal cover 2201.

[0142] On this basis, continue as Figure 27As shown, when the mounting base 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, as... Figure 25 As shown, a portion of the magnetic sheet 28 (e.g., at position E) can extend out of the mounting base 21, and this extended portion can be welded to the metal cover 2201. This improves the reliability of the connection between the mounting base 21 and the entire aperture cover 22, and reduces the probability of the mounting base 21 and the aperture cover 22 detaching.

[0143] Furthermore, the variable aperture 20 includes Figure 27 In the case of the flexible circuit board 27 shown, a portion of the magnetic sheet 28 can be electrically connected to a grounded copper drain area on the flexible circuit board 27. When the magnetic sheet 28 and the metal cover 2201 are soldered, the magnetic sheet 28 and the metal cover 2201 can be grounded to the flexible circuit board 27. This reduces electromagnetic interference (EMI).

[0144] In addition, such as Figure 30 ( Figure 24 As shown in the enlarged view at point F in the figure, the first limiting post 2101 connected to the fixed base 21 can be rotatably connected to the blade 24. Therefore, the first limiting post 2101 can pass through the rotation hole 2401 on the blade 24 (as shown in the enlarged view at point F in the figure). Figure 8 (As shown). In this case, continue as follows Figure 29 As shown, a first limiting post clearance hole 21011 can be provided on the metal cover 2201 in the aperture cover 22. The first limiting post 2101 is away from the fixing base 21 (e.g., Figure 30 One end of the device shown can be located within the first limiting post clearance hole 21011.

[0145] For example, the Figure 29 The first limiting post clearance 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 post 2101 is away from the fixing base 21 (e.g., Figure 30 One end of the first limiting post (as shown) can have a gap with the bottom of the first limiting post clearance hole 21011, thereby avoiding structural interference between the first limiting post 2101 and the metal cover 2201.

[0146] Alternatively, as another example, the aforementioned first limiting post clearance hole 21011 can also penetrate the metal cover 2201. In this case, the first limiting post 2101 is away from the fixing base 21 (e.g., Figure 30 One end of the buffer layer 2202 (as shown) can be located inside the first limiting post clearance hole 21011, and the buffer layer 2202 can block the first limiting post clearance hole 21011.

[0147] Similarly, continue as follows 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 via the second limiting post 2301. Therefore, the second limiting post 2301 can pass through the sliding guide hole 2402. In this case, continue as follows Figure 29 As shown, a second limiting post clearance hole 23011 can be provided on the metal cover 2201 in the aperture cover 22, and the end of the sliding guide hole 2402 away from the fixed base 21 can be located in the second limiting post clearance hole 23011.

[0148] For example, the Figure 29 The second limiting post clearance 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 post 2301 is positioned away from the fixing base 21 (e.g., Figure 30 One end of the second limiting post (as shown) can have a gap with the bottom of the second limiting post clearance hole 23011, thereby avoiding structural interference between the second limiting post 2301 and the metal cover 2201.

[0149] In addition, to meet the needs of industrial design (ID) design, such as Figure 31 As shown, the aforementioned aperture cover 22 may further include an anti-reflective layer 2203, which may cover the cover plate 22011. Furthermore, a buffer layer 2202 may be disposed around the periphery of the anti-reflective layer 2203. The buffer layer 2202 protrudes from the surface of the anti-reflective layer 2203, facing away from the surface of the cover plate 22011. For example, the aforementioned anti-reflective layer 2203 may be a thin film layer or a membrane with anti-reflective properties.

[0150] In this case, on the one hand, the aforementioned matting layer 2203 can scatter, reflect, or absorb incident light to achieve the effect of matting, so that the outer surface of the variable aperture 20 seen by the user is basically black, thus meeting the ID design requirements. On the other hand, since the buffer layer 2202 protrudes from the surface of the matting layer 2203 away from the surface of the cover plate 22011, it can protect the matting layer 2203, reducing the probability of surface wear or detachment of the matting layer 2203 during the assembly, use, or reliability testing of the variable aperture 20.

[0151] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A variable aperture (20), characterized in that, include: Fixing base (21); the fixing base (21) is provided with a first V-groove (211) and a second V-groove (212); the fixing base (21) is also provided with a first receiving groove (213); A rotating bracket (23) is located inside the fixed base (21); the rotating bracket (23) is provided with a third V-groove (231) and a fourth V-groove (232); the first V-groove (211) and the third V-groove (231) form a first track (2001); the second V-groove (212) and the fourth V-groove (232) form a second track (2002); the rotating bracket (23) is also provided with a second receiving groove (233); wherein, the first receiving groove (213) and the second receiving groove (233) form a third track; at least one of the first receiving groove (213) and the second receiving groove (233) is a first U-groove; The first rolling element (201) is located inside the first track (2001); the first rolling element (201) abuts against the sidewalls of the first V-groove (211) and the third V-groove (231); the first rolling element (201) is used to roll along the first track (2001) in a first circular arc trajectory. The second rolling element (202) is located within the second track (2002); the second rolling element (202) abuts against the sidewalls of the second V-groove (212) and the fourth V-groove (232), and the second rolling element (202) is used to roll along the second track (2002) in a second arc trajectory; the rotating bracket (23) is rotatably connected to the fixed seat (21) through the first rolling element (201) and the second rolling element (202); wherein, along the optical axis direction of the variable aperture (20), the first rolling element (201) and the second rolling element (202) are sandwiched between the fixed seat (21) and the rotating bracket (23); the first arc trajectory and the second arc trajectory are concentrically arranged about the optical axis; The third rolling element (203) is located within the third track; the third rolling element (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; the third rolling element (203) is used to roll within the third track; wherein, along the optical axis direction, the third rolling element (203) is located between the fixed seat (21) and the rotating bracket (23); Multiple blades (24) are disposed on the rotating bracket (23). The blades (24) are slidably connected to the rotating bracket (23) and rotatably connected to the fixed base (21). The multiple blades (24) are arranged in a ring to surround the aperture (100). An aperture cover (22) is placed on the fixed base (21) and covers a part of the side wall of the fixed base (21); the rotating bracket (23) and the blade (24) are located inside the aperture cover (22); the aperture cover (22) is connected to the fixed base (21).

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

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

4. The variable aperture (20) according to claim 2 or 3, characterized in that, The aperture cover (22) also includes an matte layer (2203) that covers the cover plate (22011).

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

6. The variable aperture (20) according to claim 5, characterized in that, The aperture cover (22) also includes an matte layer (2203) that covers the cover plate (22011); The buffer layer (2202) is disposed around the periphery of the matte layer (2203), and the buffer layer (2202) protrudes from the surface of the matte layer (2203) away from the surface of the cover plate (22011).

7. The variable aperture (20) according to claim 1, characterized in that, The first receiving groove (213) is the fifth V-shaped groove, and the second receiving groove (233) is the first U-shaped groove; the third rolling element (203) abuts against the side wall of the fifth V-shaped groove.

8. The variable aperture (20) according to claim 6 or 7, characterized in that, The radius of the first circular arc trajectory is the same as the radius of the second circular arc trajectory.

9. The variable aperture (20) according to claim 1, characterized in that, The variable aperture (20) also includes: A fourth rolling element (204) is located within the first track (2001); the fourth rolling element (204) has a second gap between itself and at least one sidewall of the first V-groove (211) or the third V-groove (231); the fourth rolling element (204) and the first rolling element (201) are arranged along the extension direction of the first track (2001); The fifth rolling element (205) is located within the second track (2002); the fifth rolling element (205) has a third gap between itself and at least one sidewall of the second V-groove (212) or the fourth V-groove (232); the fifth rolling element (205) and the second rolling element (202) are arranged along the extension direction of the second track (2002).

10. The variable aperture (20) according to claim 1, characterized in that, The fixing seat (21) has a ring structure, and a first clearance groove (2111) and a second clearance groove (2112) are provided on the side wall of the fixing seat (21). The rotating support (23) includes: The annular portion (2314) is located within the fixing base (21); The first lug (2311) is disposed on the side wall of the annular portion (2314) and connected to the annular portion (2314); the first lug (2311) is located in the first clearance groove (2111) and has a fourth gap between it and the side wall of the first clearance groove (2111); The second lug (2312) is disposed on the side wall of the annular portion (2314) and connected to the annular portion (2314); the second lug (2312) is located in the second clearance groove (2112) and has a fifth gap between it and the groove wall of the second clearance groove (2112).

11. The variable aperture (20) according to claim 10, characterized in that, The first V-shaped groove (211) is formed on the bottom surface of the first clearance groove (2111); The second V-groove (212) is formed on the bottom surface of the second clearance groove (2112); The third V-groove (231) is formed on the surface of the first lug (2311) facing the fixed seat (21); The fourth V-groove (232) is formed on the surface of the second lug (2312) facing the fixed seat (21).

12. The variable aperture (20) according to claim 11, characterized in that, The fixed base (21) is also provided with a first receiving groove (213), and the rotating bracket (23) is also provided with a second receiving groove (233). A third clearance groove (2113) is also provided on the side wall of the fixed base (21); The rotating bracket (23) further includes a third lug (2313), which is disposed on the side wall of the annular portion (2314) and connected to the annular portion (2314); the third lug (2313) is located in the third clearance groove (2113) and has a sixth gap between itself and the groove wall of the third clearance groove (2113); The first receiving groove (213) is formed on the bottom surface of the third clearance groove (2113); the second receiving groove (233) is formed on the surface of the third lug (2313) facing the fixed seat (21).

13. The variable aperture (20) according to any one of claims 10-12, characterized in that, The variable aperture (20) also includes: A magnet assembly (261) is disposed on the sidewall of the annular portion (2314) facing the fixing base (21); The magnetic sheet (28) is connected to the fixed base (21) along the optical axis and is used to attract the magnet assembly (261).

14. The variable aperture (20) according to claim 13, characterized in that, The fixing base (21) is a plastic part; The magnetic conductive sheet (28) is embedded in the plastic part, and the magnetic conductive sheet (28) has a ring structure.

15. The variable aperture (20) according to claim 13, characterized in that, The magnetic conductive sheet (28) is disposed on the bottom surface of the fixed base (21) away from the rotating bracket (23).

16. The variable aperture (20) according to claim 13, characterized in that, The aperture cover (22) includes a cover plate (22011) and a side plate (22012), the side plate (22012) being arranged around the periphery of the cover plate (22011); the cover plate (22011) and the side plate (22012) constitute an integral metal cover (2201). The fixing base (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).

17. The variable aperture (20) according to claim 16, characterized in that, The variable aperture (20) also includes a flexible circuit board (27) which is arranged around the side wall of the fixed base (21); wherein the magnetic sheet (28) and the metal cover (2201) are grounded on the flexible circuit board (27).

18. A camera module (10), characterized in that, include: Lens assembly (11); The variable aperture (20) as described in any one of claims 1-17 is disposed on the light-incident side of the lens assembly (11).

19. An electronic device, characterized in that, include: The housing (09) and the camera module (10) as described in claim 18, wherein the camera module (10) is disposed on the housing (09).

Images