Variable aperture motor, camera module and electronic device

Abstract

The present application relates to the technical field of electronic devices. Provided are a variable aperture motor, a camera module and an electronic device. The present application aims to solve the problem of a degraded user experience caused by low control precision of a variable aperture motor. The variable aperture motor comprises a fixed base, a rotating base, a plurality of blades, coils and magnetic members, wherein the rotating base is arranged on the fixed base, and can rotate relative to the fixed base; the plurality of blades are arranged between the fixed base and the rotating base, and are distributed around the axis of rotation of the rotating base, first ends of the blades are rotationally connected to the fixed base, and second ends of the blades are slidably connected to the rotating base; a plurality of groups of coils are provided, the plurality of groups of coils are distributed at intervals around the axis of rotation of the rotating base, and each group of coils comprises two coils, which are symmetrically distributed on two sides of the axis of rotation of the rotating base; and the magnetic members are arranged opposite the coils, one of the coil and the magnetic member is arranged on the fixed base, and the other one of the coil and the magnetic member is arranged on the rotating base.

Description

A variable aperture motor, a camera module, and electronic devices

[0001] This application claims priority to Chinese Patent Application No. 202410588704.9, filed on May 10, 2024, entitled "A Variable Aperture Motor, Camera Module and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic device technology, and in particular to a variable aperture motor, a camera module, and an electronic device. Background Technology

[0003] Currently, electronic devices (such as mobile phones and tablets) have become indispensable in people's lives. The camera function is also an essential feature of electronic devices. As users' demands for shooting effects increase, there is a need for variable aperture to adapt to different shooting needs. However, existing variable aperture motors suffer from low control precision, leading to a reduced user experience. Summary of the Invention

[0004] This application provides a variable aperture motor, a camera module, and an electronic device to solve the problem that existing variable aperture motors have low control precision, resulting in a reduced user experience.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, a variable aperture motor is provided, comprising a fixed base, a rotating base, multiple blades, coils, and a magnetic component. The rotating base is mounted on the fixed base and is rotatable relative to it. Multiple blades are disposed between the fixed base and the rotating base, distributed around the rotation axis of the rotating base; the first end of each blade is rotatably connected to the fixed base, and the second end of each blade is slidably connected to the rotating base. Multiple sets of coils are provided, spaced apart around the rotation axis of the rotating base; each set includes two coils, symmetrically distributed on both sides of the rotation axis of the rotating base. A magnetic component is disposed opposite to the coils; one of the coils and the magnetic component is mounted on the fixed base, and the other is mounted on the rotating base.

[0007] The variable aperture motor provided in the first aspect of this application has multiple sets of coils axially spaced around the rotation axis of the rotating base, with each set of coils having two coils symmetrically arranged, thereby covering a large circumferential area of ​​the rotating base. Furthermore, it can reduce the volume of each coil, thus contributing to a reduction in the overall size of the variable aperture motor.

[0008] Furthermore, since the two ends of the blade are connected to the fixed base and the rotating base respectively, the end of the blade connected to the rotating base will not be blocked. This helps to improve the control precision of the blade opening and closing, which in turn helps to improve the adjustment precision of the light aperture size. This, in turn, improves the control precision of the variable aperture motor, which in turn helps to improve the shooting effect of the camera module and improve the user experience.

[0009] In one possible implementation of the first aspect of this application, the fixed base includes a first part and a second part, and the rotating base includes a third part and a fourth part. The fourth part extends around the edge of the third part to form a receiving space, and the second part extends into the receiving space. The coil and magnetic component are disposed between the second part and the fourth part. This arrangement allows the coil and magnetic component to be radially distributed along the rotating base, which helps to reduce the dimensions along the rotation axis of the rotating base, thereby helping to reduce the dimensions of the camera module along the optical axis, and thus helping to reduce the thickness of the electronic device.

[0010] In one possible implementation of the first aspect of this application, the coil is fixed to the second part of the fixed base, and the magnetic element is fixed to the fourth part of the rotating base. Alternatively, in another possible example, the coil may also be fixed to the fourth part, while the magnetic element is fixed to the second part.

[0011] In one possible implementation of the first aspect of this application, a first receiving groove is provided on the outer wall of the second part, and the coil is fixed in the first receiving groove. In this structure, the coil is embedded within the second part, which helps to reduce the radial dimension of the variable aperture motor.

[0012] In one possible implementation of the first aspect of this application, a second receiving groove is formed on the outer wall of the fourth part, and the magnetic component is fixed in the second receiving groove. In this structure, the magnetic component is embedded within the fourth part, which helps to further reduce the radial dimension of the variable aperture motor. Furthermore, the second receiving groove being formed on the outer wall of the fourth part helps to reduce the difficulty of installing and removing the magnetic component.

[0013] In one possible implementation of the first aspect of this application, a communication port is provided on the inner sidewall of the fourth part, and the communication port communicates with the second receiving groove. With this structure, the coil and the magnetic component can be positioned opposite each other to ensure the electromagnetic driving force between them.

[0014] In one possible implementation of the first aspect of this application, a limiting block is provided on the first part, and a limiting notch is formed on the fourth part. The limiting notch extends around the rotation axis of the rotating seat, and the limiting block is located within the limiting notch. In this way, during the rotation of the rotating seat relative to the fixed seat, the limiting block moves within the limiting notch, that is, along the circumferential direction of the rotation axis of the rotating seat. When the limiting block moves to the two ends of the limiting notch, the rotating seat moves to its limit position, thereby limiting the maximum rotational stroke of the rotating seat and improving the reliability of the overall structure.

[0015] In one possible implementation of the first aspect of this application, a mounting post is provided on the first part, and a mounting hole is formed on the surface of the limiting block facing the first part, into which the mounting post is inserted. In this way, the limiting block is a detachable structure, allowing the rotational stroke of the rotating seat to be adjusted by replacing limiting blocks of different sizes. That is, with the aforementioned limiting notch size remaining unchanged, the larger the size of the limiting block, the smaller the rotational stroke of the rotating seat.

[0016] For example, the cross-sectional shape of the mounting hole and the mounting post is polygonal or other irregular shape, which can form a limit between the limiting block and the mounting post to avoid relative rotation between the limiting block and the mounting post, thereby improving the reliability of the overall structure.

[0017] Furthermore, the mounting post is detachably mounted on the first part. Its specific structure can be the same as the structure described above, or it can adopt other detachable structures such as snap-fit ​​or threaded connection.

[0018] In one possible implementation of the first aspect of this application, along a direction parallel to the rotation axis of the rotating seat, a first inclined surface is formed at the end of the second part closer to the first part, and a second inclined surface is formed at the end of the fourth part farther from the third part. The first and second inclined surfaces extend around the rotation axis of the rotating seat, and the first and second inclined surfaces abut against each other. In this way, both the first and second inclined surfaces form a conical surface structure. When the first and second inclined surfaces abut against each other, a limiting structure can be formed between the rotating seat and the fixed seat, that is, the relative movement between the rotating seat and the fixed seat in the radial direction can be restricted, thereby ensuring the coaxiality between the rotating seat and the fixed seat, so as to ensure that the rotation axis of the rotating seat coincides with the optical axis of the camera body, so as to avoid the light-incident surface of the camera body being blocked or partially blocked.

[0019] In one possible implementation of the first aspect of this application, a plurality of limiting protrusions are provided on the first or second inclined surface, and the plurality of limiting protrusions are spaced apart around the rotation axis of the rotating seat. This structure helps to reduce the contact area between the rotating seat and the fixed seat, thereby reducing the frictional force between them during relative rotation.

[0020] For example, the limiting protrusion may be hemispherical, a spherical structure composed of multiple planes, or other shapes.

[0021] In one possible implementation of the first aspect of this application, the variable aperture motor further includes an adsorption ring disposed on the surface of the first part facing the rotating seat, with the adsorption ring opposite the end face of the fourth part away from the third part. In this way, the adsorption ring can apply an adsorption force to the rotating seat, thereby increasing the limiting force between the rotating seat and the fixed seat, ensuring that the second inclined surface always abuts against the limiting protrusion on the first inclined surface, thus further improving the reliability of the overall structure.

[0022] In one possible implementation of the first aspect of this application, three sets of coils are provided, and the three sets of coils are spaced apart around the rotation axis of the rotating base. In this way, by controlling the current direction of the three sets of coils, an attractive or repulsive force can be applied to the magnetic component, and the direction of the force applied to the magnetic component by the three sets of coils is the same, so that the magnetic component can drive the rotating base to rotate rapidly.

[0023] In one possible implementation of the first aspect of this application, the central angle formed between two adjacent sets of coils is greater than or equal to 30°. That is, the three sets of coils can cover a circumferential range with a central angle of 60°, meaning the maximum rotation angle of the rotating base is greater than or equal to 60°.

[0024] In one possible implementation of the first aspect of this application, two magnetic components are provided and symmetrically distributed on both sides of the rotation axis of the rotating base, with each magnetic component corresponding to one of the two coils in each group of coils. This structure is advantageous for increasing the driving force of the rotating base.

[0025] In one possible implementation of the first aspect of this application, the rotating base has multiple strip-shaped holes, each corresponding to a different blade; a sliding block is provided at the second end of each blade, extending into the strip-shaped hole. In this way, during the rotation of the rotating base, the sliding block can slide along the strip-shaped hole, causing the blade to rotate around a rotation point on the fixed base, thereby adjusting the size of the light-transmitting hole.

[0026] In one possible implementation of the first aspect of this application, the strip-shaped holes extend radially along the rotating base. The number of strip-shaped holes corresponds one-to-one with the number of blades, and multiple strip-shaped holes are distributed at intervals around the rotation axis of the rotating base, with the central angles formed by two adjacent strip-shaped holes being equal.

[0027] In one possible implementation of the first aspect of this application, a variable optical drive motor shield is provided, which is disposed on the end face of the rotating base away from the fixed base, and covers the strip-shaped hole. This structure can conceal the strip-shaped hole and its internal structure, thus improving the overall aesthetics.

[0028] In one possible implementation of the first aspect of this application, a first through hole is provided on the rotating seat, and the rotating seat is rotatable relative to the fixed seat between a first position and a second position; when the rotating seat is in the first position, a plurality of blades open the first through hole; when the rotating seat is in the second position, a plurality of blades block the first through hole.

[0029] In some other possible examples, when the rotating seat is in the second position, the first through hole may not be completely blocked, but at this time the cross-sectional area of ​​the light-transmitting hole is the smallest, that is, the amount of light entering is the smallest.

[0030] In one possible implementation of the first aspect of this application, the edge of the blade near the rotation axis of the rotating seat is designated as the first edge, and multiple first edges form a light-transmitting hole. A bending point is formed at the junction of two adjacent first edges, and multiple bending points are formed on the light-transmitting hole. This allows for the formation of starbursts in the captured image, which improves the shooting effect.

[0031] In one possible implementation of the first aspect of this application, the number of leaves is odd. With this structure, since an odd number of bending points will not form a symmetrical structure on the circumference, it is possible to produce twice the starburst structure, which is beneficial for further improving the shooting effect.

[0032] In one possible implementation of the first aspect of this application, the number of blades is nine. This allows for the formation of an 18-pointed star pattern, and the moderate number of blades helps reduce costs.

[0033] In one possible implementation of the first aspect of this application, the first edge is arc-shaped. This improves the roundness of the light-transmitting aperture and further enhances the shooting effect.

[0034] Secondly, a camera module is provided, comprising a camera body and a variable aperture motor. The variable aperture motor is as described in any of the above technical solutions, and is located on the light-incident side of the lens, and is electrically connected to the camera body.

[0035] The camera module provided in the second aspect of this application, because it includes a variable aperture motor as described in any of the above technical solutions, is able to solve the same technical problem and achieve the same technical effect.

[0036] In one possible implementation of the second aspect of this application, a first conductive plate is disposed on the variable aperture motor, and the first conductive plate is electrically connected to the coil of the variable aperture motor; the camera body includes an optical lens and a drive motor, and the conductive lines of the drive motor are welded to the first conductive plate. In this structure, the variable aperture motor and the camera module are directly welded and fixed to achieve electrical connection.

[0037] In one possible implementation of the second aspect of this application, the drive motor is provided with a second conductive plate, one end of which is electrically connected to the conductive circuit of the drive motor, and the other end of which is soldered to a first conductive plate. In this structure, the variable aperture motor and the camera module are indirectly connected via the second conductive plate to achieve electrical connection.

[0038] Thirdly, an electronic device is provided, comprising a housing, a camera decorative cover, and a camera module. The housing includes a mid-frame and a rear cover, the rear cover being fixedly connected to the mid-frame, and a mounting notch is provided on the rear cover. The camera decorative cover is fixed to the mounting notch, and a light-transmitting window is provided on the camera decorative cover. The camera module is the camera module as described in any of the above technical solutions, the camera module being fixed between the mid-frame and the rear cover, and the variable aperture motor of the camera module is opposite to the light-transmitting window.

[0039] The electronic device provided in the third aspect of this application, since it includes the camera module described in any of the above technical solutions, is able to solve the same technical problem and achieve the same technical effect. Attached Figure Description

[0040] Figure 1 is a structural diagram of an electronic device provided in an embodiment of this application;

[0041] Figure 2 is an exploded view of an electronic device provided in an embodiment of this application;

[0042] Figure 3 is a structural diagram of a camera module provided in an embodiment of this application;

[0043] Figure 4 is an exploded view of the camera module shown in Figure 3;

[0044] Figure 5 is an exploded view of the variable aperture motor of the camera module shown in Figure 3;

[0045] Figure 6 is a structural diagram of the blades of the variable aperture motor shown in Figure 5;

[0046] Figure 7 is a structural diagram of the rotating base of the camera module provided in the embodiment of this application in the first position;

[0047] Figure 8 is a structural diagram of the rotating base of the camera module provided in the embodiment of this application in the second position;

[0048] Figure 9 is a structural diagram of a variable aperture motor provided in an embodiment of this application;

[0049] Figure 10 is an exploded view of the variable aperture motor shown in Figure 9;

[0050] Figure 11 is a structural diagram showing the relative position of the magnetic component of the drive assembly provided in this application when it is rotated to one end limit position (i.e., when the rotating seat is in the first position mentioned above) with the coil.

[0051] Figure 12 is a structural diagram showing the relative position of the magnetic component of the drive assembly provided in this application when it is rotated to the other extreme position (i.e., when the rotating seat is in the second position mentioned above) with the coil.

[0052] Figure 13 is a structural diagram showing the relative position of the magnetic component and the coil when the magnetic component is in the middle position (i.e., the rotating seat is located between the first and second positions) according to the embodiment of this application.

[0053] Figure 14 is a structural diagram of another variable aperture motor provided in an embodiment of this application;

[0054] Figure 15 is an exploded view of the variable aperture motor shown in Figure 14;

[0055] Figure 16 is a structural diagram of another variable aperture motor provided in an embodiment of this application;

[0056] Figure 17 is an exploded view of the variable aperture motor shown in Figure 16;

[0057] Figure 18 is an exploded view of another variable aperture motor provided in an embodiment of this application;

[0058] Figure 19 is a first-view structural diagram of the blades of the variable aperture motor provided in Figure 18;

[0059] Figure 20 is a second-view structural diagram of the blades of the variable aperture motor provided in Figure 18;

[0060] Figure 21 is a front view of the variable aperture motor shown in Figure 18 (only one blade is shown, and the rotating seat is in the first position);

[0061] Figure 22 is a front view of the variable aperture motor shown in Figure 18 (only one blade is shown, and the rotating seat is in the second position);

[0062] Figure 23 is a front view of the variable aperture motor (rotor not shown, and the two blades are located in two different positions) provided in Figure 18;

[0063] Figure 24 is a front view of the variable aperture motor (including multiple blades) shown in Figure 18;

[0064] Figure 25 is an enlarged view of the structure of region A in Figure 24;

[0065] Figure 26 is an exploded view of another variable aperture motor provided in an embodiment of this application;

[0066] Figure 27 is a front view of the variable aperture motor shown in Figure 26;

[0067] Figure 28 is a front view of another variable aperture motor provided in an embodiment of this application;

[0068] Figure 29 is a top view of the variable aperture motor shown in Figure 28;

[0069] Figure 30 is a bottom view of the variable aperture motor shown in Figure 28;

[0070] Figure 31 is a side view of the variable aperture motor shown in Figure 28;

[0071] Figure 32 is a cross-sectional view of BB in Figure 29.

[0072] Reference numerals: 01-Electronic device; 10-Display module; 11-Light-transmitting cover; 12-Display screen; 20-Housing shell; 21-Back cover; 21a-Mounting notch; 22-Frame; 23-Middle plate; 24-Camera decorative cover; 24a-Light-transmitting window; 30-Circuit board; 40-Camera module; 100-Camera body; 200-Variable aperture motor; 210-Fixing base; 211-Second through hole; 212-First pin; 213-First part; 213a-Mounting post; 214-Second part; 214a-First receiving groove; 214b-First inclined surface; 214c-Rotating hole; 215-Limiting protrusion; 220-Rotating base; 221-First through hole; 222-Second pin; 223-Third part; 223a-Strip hole; 224-Fourth part; 224a-Second receiving groove; 224b-Connecting port; 224c-Limiting notch; 224d-Second inclined surface; 230-Blade; 230a-Light-transmitting hole; 231-First connecting hole; 232-Second connecting hole; 233-First end; 234-Second end; 235-Rotating block; 236-Sliding block; 237-First edge; 238-Bending point; 240-Magnetic component; 250-Coil; 251-First conductive sheet; 260-Limiting block; 270-Adsorption ring; 280-Shielding sheet; 290-Gasket. Detailed Implementation

[0073] The technical solutions will now be described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0074] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes 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.

[0075] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0076] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed connection, a detachable connection, or an integral part; it may be a direct connection or an indirect connection through an intermediate medium.

[0077] This application provides an electronic device 01. Specifically, the electronic device 01 can be a portable electronic device or other types of electronic devices. For example, the electronic device 01 can be a mobile phone (including tablet phones, foldable phones, etc.), a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a monitor, a camera, a personal computer, a laptop computer, a wearable device, etc. For ease of explanation, the following description uses a tablet phone as an example of the electronic device 01.

[0078] Please refer to Figures 1 and 2. Figure 1 is a structural diagram of the electronic device 01 provided in an embodiment of this application, and Figure 2 is an exploded view of the electronic device 01 provided in an embodiment of this application. As can be seen from the above, in this embodiment, the electronic device 01 is a tablet phone, and the electronic device 01 can have an approximately rectangular plate-like structure. The electronic device 01 may include a display module 10, a housing 20, a circuit board 30, and a camera module 40.

[0079] For ease of description below, an XYZ coordinate system is established, defining the width direction of electronic device 01 as the X-axis, the length direction of electronic device 01 as the Y-axis, and the thickness direction of electronic device 01 as the Z-axis. It is understood that the coordinate system of electronic device 01 can be flexibly set according to actual needs; this application only provides one example and should not be considered a specific limitation of this application. Figures 1 and 2 only schematically show some components included in electronic device 01; the actual shape, size, position, and structure of these components are not limited by Figures 1 and 2.

[0080] It should be noted that in Figures 1 and 2, the ends of the lead lines in the reference numerals are marked with solid arrows (i.e., triangular arrows) to represent solid structures, such as the aforementioned display module 10, housing 20, circuit board 30, and camera module 40. Solid dots “·” represent spatial structures, such as holes, slots, cavities, notches, and windows. This marking method will be used in all the corresponding figures below.

[0081] The aforementioned display module 10 is used to display images, videos, etc. The display module 10 may include a light-transmitting cover 11 and a display screen 12 (also known as a display panel), with the light-transmitting cover 11 and the display screen 12 stacked together. The material of the light-transmitting cover 11 includes, but is not limited to, glass. For example, the light-transmitting cover 11 can be a common light-transmitting cover 11, used to protect the display screen 12 from damage caused by external forces and to provide dust protection. Alternatively, the light-transmitting cover 11 can also be a touch-enabled light-transmitting cover 11, enabling the electronic device 01 to have touch functionality, thus making it more convenient for users. Therefore, this application does not specifically limit the material of the light-transmitting cover 11.

[0082] Furthermore, the aforementioned display screen 12 can be a flexible display screen or a rigid display screen. For example, the display screen 12 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini light-emitting diode display screen, a micro light-emitting diode display screen, a micro organic light-emitting diode display screen, a quantum dot light-emitting diode (QLED) display screen, or a liquid crystal display (LCD).

[0083] The aforementioned housing 20 is used to protect the electronic components inside the electronic device 01. The housing 20 may include a back cover 21 and a frame 22. The back cover 21 is located on the side of the display screen 12 away from the light-transmitting cover plate 11 and is stacked with the light-transmitting cover plate 11 and the display screen 12. The frame 22 is located between the light-transmitting cover plate 11 and the back cover 21. The frame 22 is fixed to the back cover 21. Exemplarily, the frame 22 can be fixed to the back cover 21 by means of adhesive bonding, threaded connection, welding, snap-fit, etc.; alternatively, the frame 22 can also be integrally formed with the back cover 21, that is, the frame 22 and the back cover 21 form a single structural component. The light-transmitting cover plate 11 can be glued to the frame 22, so that the light-transmitting cover plate 11, the back cover 21, and the frame 22 form a receiving cavity inside the electronic device 01, within which the aforementioned circuit board 30 assembly and electronic components are disposed.

[0084] In some embodiments, the housing 20 may further include a middle plate 23, which is disposed within the aforementioned receiving cavity and located on the side of the display screen 12 away from the light-transmitting cover plate 11. The middle plate 23 is fixedly connected to the frame 22 to form the middle frame of the electronic device 01. Exemplarily, the middle plate 23 and the frame 22 can be fixedly connected by adhesive, threaded connection, welding, snap-fit, or other methods; alternatively, the middle plate 23 and the frame 22 can be an integrally formed structure, i.e., the middle plate 23 and the frame 22 form a single structural component. The middle plate 23 divides the aforementioned receiving cavity into two independent spaces. One space is located between the light-transmitting cover plate 11 and the middle plate 23, within which the display screen 12 is located. The other space is located between the middle plate 23 and the rear cover 21, within which the aforementioned circuit board 30 assembly is located.

[0085] The aforementioned circuit board 30 assembly is used to house the electronic components inside the electronic device 01 and to achieve electrical connections between the electronic components. The circuit board 30 assembly can be fixed to the middle plate 23 by means of adhesive bonding, threaded connection, soldering, snap-fitting, etc. Therefore, this application does not impose any special limitations on the fixing method of the circuit board 30 assembly.

[0086] Furthermore, electronic devices are used to implement various functions of electronic device 01. For example, electronic devices can be control chips (such as system-on-chips, SOC), graphics processing units (GPUs), universal flash storage (UFS), flash modules, and the aforementioned camera module 40, etc.

[0087] The aforementioned camera module 40 is used to capture video or images. The camera module 40 may include a main camera, a wide-angle camera, and a telephoto camera, and its structural form includes both upright and periscope types. The camera module 40 may include a camera body 100, which can be electrically connected to the aforementioned circuit board 30 via a flexible connector (e.g., an FPC board, flexible printed circuit).

[0088] The camera body 100 has a light-incident surface, which can be the light-incident surface of the internal optical lens of the camera body 100. The light-incident surface of the camera body 100 faces the rear cover 21, and the rear cover 21 has a mounting notch 21a. The light-incident surface of the camera body 100 is opposite to the mounting notch 21a. In some examples, the electronic device 01 may also include a camera decorative cover 24, which is fixed in the mounting notch 21a. The camera decorative cover 24 has a light-transmitting window 24a, and the light-incident surface of the camera body 100 is opposite to the light-transmitting window 24a, so that external light can pass through the light-transmitting window 24a and enter the camera body 100, thereby enabling the electronic device 01 to capture video or images.

[0089] It is understood that the camera module 40 described above can be positioned near one edge of the back cover 21, as shown in Figures 1 and 2. In other examples, the camera module 40 can also be positioned at other locations on the back cover 21, such as the middle of the upper side of the back cover 21. Therefore, this application does not impose any special limitation on the specific position of the camera module 40 on the back cover 21.

[0090] As users demand increasingly higher shooting quality from electronic devices 01, the camera module 40 needs to be able to adjust different parameters for different shooting environments to improve the shooting effect. In some embodiments, the aperture size of the camera module 40 can be controlled, i.e., the amount of light entering the camera can be adjusted to adapt to different shooting environments. For example, in bright and sufficient light, the aperture can be narrowed to obtain a deeper depth of field and a sharper image; in low light, the aperture can be widened to increase the amount of light entering the camera, thereby obtaining a cleaner image with higher exposure and lower noise.

[0091] Based on this, please refer to Figures 3 and 4. Figure 3 is a structural diagram of a camera module 40 provided in an embodiment of this application, and Figure 4 is an exploded view of the camera module 40 provided in Figure 3. The camera module 40 may include the aforementioned camera body 100 and a variable aperture motor 200. The variable aperture motor 200 is disposed on the light-incident surface side of the camera body 100. By rotating the blades 230 inside the variable aperture motor 200, the amount of light entering the camera is controlled, so that the camera module 40 can adapt to different shooting environments.

[0092] The variable aperture motor 200 may include a fixed base 210, a rotating base 220 and a plurality of blades 230. The rotating base 220 has a first through hole 221 in the middle, and the fixed base 210 has a second through hole 211 in the middle. The rotating base 220 can rotate relative to the fixed base 210, and the axis of the first through hole 221 coincides with the rotation axis of the rotating base 220. The second through hole 211 is coaxially arranged with the first through hole 221.

[0093] It is understandable that, since the light-incident surface of the camera module 40 faces the light-transmitting window as shown in Figure 2, the optical axis of the camera module 40 is set along the Z-axis direction, and the rotation axes of the first through hole 221, the second through hole 211, and the rotating seat 220 are all parallel to the Z-axis direction.

[0094] Please refer to Figures 3 and 4. The blades 230 are positioned between the fixed base 210 and the rotating base 220. Multiple blades 230 are distributed around the rotation axis of the rotating base 220, forming a light-transmitting hole 230a. The light-transmitting hole 230a is opposite to the first through hole 221 and the second through hole 211. External light enters the light-receiving surface of the camera body 100 through the first through hole 221 on the rotating base 220, the light-transmitting hole 230a, and the second through hole 211 on the fixed base 210. Therefore, by adjusting the size of the light-transmitting hole 230a, the amount of light entering the camera body 100 can be controlled, i.e., the amount of light entering the camera module 40 can be adjusted.

[0095] Specifically, please refer to Figures 5 and 6. Figure 5 is an exploded view of the variable aperture motor 200 of the camera module 40 shown in Figure 3, and Figure 6 is a structural diagram of the blade 230 of the variable aperture motor 200 shown in Figure 5. The blade 230 may have a first connecting hole 231 and a second connecting hole 232. The blade 230 is rotatably connected to the fixed base 210 through the first connecting hole 231, and the blade 230 is slidably connected to the rotating base 220 through the second connecting hole 232, which is an oblong hole. The fixed base 210 and the blade 230, as well as the rotating base 220 and the blade 230, can be connected by pins.

[0096] For example, the fixed base 210 is provided with a first pin 212, which extends into the first connecting hole 231. The rotating base 220 is provided with a second pin 222, which extends into the second connecting hole 232.

[0097] During the rotation of the rotating seat 220 relative to the fixed seat 210, the rotating seat 220 drives the second pin 222 to rotate around its rotation axis. Since the second connecting hole 232 is an oblong hole, the second pin 222 and the blade 230 can slide relative to each other along the length of the oblong hole, that is, the blade 230 slides relative to the rotating seat 220. At the same time, since the blade 230 is rotatably connected to the fixed seat 210, the blade 230 rotates around the first pin 212 (i.e., the circumference of the first connecting hole 231) under the action of the rotating seat 220.

[0098] It is understood that other structural forms of connecting members can also be used between the fixed seat 210 and the blade 230, and between the rotating seat 220 and the blade 230. For example, the connecting members can also be bolts, rivets, etc. Therefore, this application does not impose any special limitations on the specific structural form of the connecting member.

[0099] Furthermore, the multiple first pins 212 corresponding to the multiple blades 230 are distributed at intervals around the rotation axis of the rotating seat 220. Therefore, during the rotation of the multiple blades 230, the size of the light-transmitting hole 230a formed by the multiple blades 230 can be increased or decreased. Thus, the position of the blades 230 can be adjusted by rotating the rotating seat 220 to control the size of the light-transmitting hole 230a, that is, to adjust the amount of light entering the camera module 40.

[0100] The rotating seat 220 can rotate relative to the fixed seat 210 between a first position and a second position. When the rotating seat 220 rotates to the first position, please refer to Figure 7. Figure 7 is a structural diagram of the rotating seat 220 of the camera module 40 provided in this application embodiment in the first position. Multiple blades 230 open the first through hole 221, that is, multiple blades 230 are blocked by the fixed seat 210. At this time, the first through hole 221 is fully opened, and the amount of light entering is the maximum.

[0101] When the rotating seat 220 is rotated to the second position, please refer to Figure 8. Figure 8 is a structural diagram of the rotating seat 220 of the camera module 40 provided in this application embodiment in the second position. Multiple blades 230 block the first through hole 221. At this time, the first through hole 221 is completely blocked and the amount of light entering is zero.

[0102] It is understandable that when the rotating seat 220 is rotated to any position between the first position and the second position, the blade 230 can block part of the first through hole 221 (as shown in Figure 3). That is, at this time, the cross-sectional area of ​​the light-transmitting hole 230a is smaller than the cross-sectional area of ​​the first through hole 221, and the amount of light entering is determined by the cross-sectional area of ​​the light-transmitting hole 230a.

[0103] In some possible cases, when the rotating seat 220 is rotated to the second position described above, the first through hole 221 may not be completely blocked. However, at this time, the cross-sectional area of ​​the light-transmitting hole 230a is minimized, and the amount of light entering is minimized. For example, the position shown in Figure 3 can be the second position, where the cross-sectional area of ​​the light-transmitting hole 230a is minimized, and the amount of light entering is minimized. Therefore, this application does not impose any special limitations on this.

[0104] Please refer back to Figure 6. On the blade 230 of the variable aperture motor 200 used in the current electronic device 01, the first connecting hole 231 and the second connecting hole 232 are generally opened in the end region of the same end of the blade 230. That is, the blade 230 uses the first connecting hole 231 as the fulcrum (i.e. the fulcrum of the lever principle). When the rotating seat 220 slides relative to the blade 230, the blade 230 rotates around the first connecting hole 231 in a circumferential direction.

[0105] That is, the end of the blade 230 without the first connecting hole 231 and the second connecting hole 232 is a free end, and the distance (i.e., the lever arm) between this free end and the first connecting hole 231, which serves as a fulcrum, is greater than the distance between the second connecting hole 232 and the first connecting hole 231. In other words, a small angle of rotation of the blade 230 driven by the rotating seat 220 can cause the free end of the blade 230 to rotate a large angle, thereby adjusting the amount of light entering the blade.

[0106] Therefore, the variable aperture motor 200 typically uses a magnet and a coil (not shown in the figure) to drive the rotating base 220 to rotate relative to the fixed base 210. That is, the magnet and the coil are arranged opposite each other, with one of the magnet and the coil located on the rotating base 220 and the other on the fixed base 210. When the coil is energized, the magnet, under the influence of the magnetic field, generates a force (i.e., Ampere force) between the coil and the magnet, thereby driving the rotating base 220 to rotate relative to the fixed base 210.

[0107] However, in the camera module 40, the free end of the blade 230 is easily affected by other components. For example, when the free end of the blade 230 collides or comes into contact with other components, it will block the rotation of the blade 230, preventing the blade 230 from rotating to the target position. This affects the accuracy of the rotation of the blade 230, which in turn affects the control accuracy of the size of the light-passing hole 230a, resulting in a reduction in the adjustment accuracy of the amount of light entering the camera.

[0108] Based on this, this application provides a variable aperture motor 200, which is applied in the aforementioned camera module 40 and electronic device 01. Please refer to Figures 9 and 10. Figure 9 is a structural diagram of the variable aperture motor 200 provided in this application embodiment, and Figure 10 is an exploded view of the variable aperture motor 200 shown in Figure 9. The variable aperture motor 200 may include the aforementioned fixed base 210, rotating base 220, multiple blades 230, and a driving device.

[0109] The aforementioned rotating seat 220 is disposed on the fixed seat 210, and the rotating seat 220 is rotatable relative to the fixed seat 210. Along a direction parallel to the rotation axis of the rotating seat 220 (shown in the Z-axis direction in the figure), a plurality of blades 230 are disposed between the rotating seat 220 and the fixed seat 210. The first end 233 of the blade 230 along its own length direction is rotatably connected to the fixed seat 210, and the second end 234 of the blade 230 along its own length direction is slidably connected to the rotating seat 220.

[0110] The aforementioned driving device is used to drive the rotating seat 220 to rotate relative to the fixed seat 210. The driving device includes a magnetic element 240 and multiple sets of coils 250. Each set of coils 250 includes two coils 250, and the two coils 250 in each set are symmetrically distributed on both sides of the rotation axis of the rotating seat 220. The multiple sets of coils 250 are spaced apart. One of the magnetic element 240 and the coils 250 is disposed on the fixed seat 210, and the other of the magnetic element 240 and the coils 250 is disposed on the rotating seat 220.

[0111] For example, the above-mentioned coil 250 can be provided in three sets, and the three sets of coil 250 are distributed at intervals around the rotation axis of the rotating seat 220. The central angle formed between two adjacent sets of coil 250 can be greater than or equal to 30°, that is, the central angle formed by the two sets of coil 250 on both sides of the three sets of coil 250 is greater than or equal to 60°.

[0112] Furthermore, two magnetic elements 240 can be provided, and the two magnetic elements 240 are symmetrically arranged on both sides of the rotation axis of the rotating seat 220. That is, one coil 250 in each group of coils 250 is opposite to one magnetic element 240, and the other coil 250 in each group of coils 250 is opposite to the other magnetic element 240.

[0113] In this way, multiple sets of coils 250 can cover a large area on the circumference formed around the rotation axis of the rotating seat 220. For example, the multiple sets of coils 250 can cover an arc with a central angle of 60°, that is, the rotation angle of the rotating seat 220 can be greater than or equal to 60°. At the same time, since both ends of the blade 230 (including the first end 233 and the second end 234) are connected to the fixed seat 210 and the rotating seat 220 respectively, the end of the blade 230 connected to the rotating seat 220 (i.e., the second end 234) will not be blocked, which helps to improve the control accuracy of the opening and closing of the blade 230, that is, it helps to improve the adjustment accuracy of the size of the light-transmitting aperture 230a.

[0114] In some embodiments, referring to Figures 9 and 10, along a direction parallel to the rotation axis of the rotating seat 220, the fixed seat 210 may include a first portion 213 and a second portion 214, and the rotating seat 220 may include a third portion 223 and a fourth portion 224. The fourth portion 224 extends around the edge of the third portion 223 to form a receiving space, and the aforementioned first through hole 221 is formed in the middle of the third portion 223. The second portion 214 of the fixed seat 210 extends into the receiving space, and the edge region of the first portion 213 of the fixed seat 210 is disposed opposite to the end face of the fourth portion 224 of the rotating seat 220 away from the third portion 223.

[0115] Furthermore, the aforementioned magnetic element 240 and multiple sets of coils 250 can be distributed along a direction perpendicular to the rotation axis of the rotating base 220, that is, distributed radially along the rotating base 220. For example, the multiple sets of coils 250 are fixed on the second part 214 of the fixed base 210, and the magnetic element 240 is disposed on the fourth part 224 of the rotating base 220.

[0116] In this way, multiple sets of coils 250 are spaced apart around the sidewall of the second part 214, so that the multiple sets of coils 250 can cover a large arc range, that is, the central angle can be greater than or equal to 60°. Furthermore, since the coils 250 and the magnetic element 240 are radially distributed along the rotating base 220, that is, disposed between the second part 214 and the fourth part 224, it is beneficial to reduce the size of the variable aperture motor 200 in the direction parallel to the rotation axis, thereby reducing the size of the camera module 40 in this direction, and further reducing the size of the electronic device 01 in the Z-axis direction.

[0117] In other examples, a plurality of first receiving slots 214a may be formed on the sidewall of the second portion 214, and the plurality of coils 250 are fixed in the corresponding first receiving slots 214a to reduce the radial dimension of the variable aperture motor 200. Furthermore, a second receiving slot 224a may be formed on the outer wall of the fourth portion 224, and the magnetic element 240 is fixed in the second receiving slot 224a, thereby further reducing the radial dimension of the variable aperture motor 200.

[0118] Furthermore, a connecting port 224b may be provided on the inner wall of the fourth part 224, which communicates with the second receiving groove 224a, so that the magnetic component 240 and the coil 250 are arranged opposite to each other. At the same time, the magnetic component 240 is installed in the second receiving groove 224a opened on the outer wall of the fourth part 224, which helps to reduce the difficulty of installing and disassembling the magnetic component 240.

[0119] Based on this, the aforementioned drive device, by employing an electromagnetic drive structure formed by multiple sets of coils 250 and magnetic components 240, utilizes the drive principle of a brushless motor. By controlling the alternating energization of multiple coils 250 in conjunction with the magnetic components 240, the rotating base 220 can rotate a large range, allowing the blades 230 to contract or expand, thereby adjusting the size of the light-transmitting aperture 230a and the amount of light entering. The following example illustrates the control of the coils 250 using a configuration of three sets of coils 250, with a central angle of 30° between adjacent sets.

[0120] Please refer to Figures 11, 12, and 13. Figure 11 shows the relative position structure of the magnetic component 240 of the driving assembly provided in this embodiment of the application when it rotates to one extreme position (i.e., when the rotating seat 220 is located in the first position mentioned above) and the coil 250. Figure 12 shows the relative position structure of the magnetic component 240 of the driving assembly provided in this embodiment of the application when it rotates to the other extreme position (i.e., when the rotating seat 220 is located in the second position mentioned above) and the coil 250. Figure 13 shows the relative position structure of the magnetic component 240 of the driving assembly provided in this embodiment of the application when it is located in the middle position (i.e., when the rotating seat 220 is located between the first and second positions) and the coil. Notably, the rotating seat 220 is not shown in Figures 11, 12, and 13.

[0121] It should be noted that the positional correspondence between Figures 11 and 12 and the rotating seat 220 can also be interpreted as Figure 11 representing the rotating seat 220 in the second position, and Figure 12 representing the rotating seat 220 in the first position. Therefore, Figures 11 and 12 are merely examples and do not limit the rotational position of the rotating seat 220.

[0122] Based on this, the three sets of coils 250 are C1 and C2, D1 and D2, and M1 and M2, respectively, and are symmetrically distributed in pairs. Figure 11 shows the magnetic component 240 rotated to the 30° position, at which point it can only rotate counterclockwise, as indicated by the arrow in Figure 11. Figure 12 shows the magnetic component 240 at the -30° position, at which point it can only rotate clockwise, as indicated by the arrow in Figure 12. Figure 13 shows the magnetic component 240 at the 0° position, at which point it can rotate in both directions. Therefore, by controlling the current flow direction of the three sets of coils 250, as shown in Table 1, the magnetic component 240 can be driven to rotate in one direction, that is, the rotating base 220 can be driven to rotate.

[0123] Table 1

[0124] As shown in Table 1, by controlling the current direction of the three sets of coils 250, different coils 250 can apply attractive or repulsive forces to the magnetic component 240 respectively, and the forces applied by the three sets of coils 250 to the magnetic component 240 are in the same direction, thereby enabling the magnetic component 240 to rotate at a large angle, that is, enabling the aforementioned rotating seat 220 to rotate at a large angle.

[0125] In some possible examples, please refer to Figures 14 and 15. Figure 14 is a structural diagram of another variable aperture motor 200 provided in an embodiment of this application, and Figure 15 is an exploded view of the variable aperture motor 200 provided in Figure 14. To precisely control the maximum rotational stroke of the rotating seat 220, a limit block 260 may be provided on the first part 213 of the fixed seat 210, and a limit notch 224c may be provided on the fourth part 224 of the rotating seat 220, with the limit block 260 extending into the limit notch 224c.

[0126] During the rotation of the rotating seat 220 relative to the fixed seat 210, the limiting block 260 moves within the limiting notch 224c, that is, along the circumferential direction of the rotation axis of the rotating seat 220. When the limiting block 260 moves to the two ends of the limiting notch 224c, the rotating seat 220 is in the aforementioned first or second position. In this way, by setting the length of the limiting notch 224c, the maximum rotational stroke of the rotating seat 220 is limited, thereby reducing the risk of excessive rotation of the rotating seat 220.

[0127] For example, referring to Figures 14 and 15, the aforementioned limiting block 260 can be fixedly mounted on the first portion 213 of the fixing base 210. Alternatively, the limiting block 260 can also be detachably mounted on the first portion 213. For instance, the first portion 213 is provided with a mounting post 213a, and the limiting block 260 has a corresponding mounting hole (not shown in the figures) on its surface facing the first portion 213, into which the mounting post 213a is inserted.

[0128] Therefore, the rotational stroke of the rotating seat 220 can be adjusted by replacing the limiting blocks 260 with different sizes along the circumference of the rotating seat 220. That is, with the size of the limiting notch 224c remaining unchanged, the larger the size of the limiting block 260, the smaller the rotational stroke of the rotating seat 220.

[0129] Furthermore, the cross-sectional shape of the aforementioned mounting hole and mounting post 213a can be polygonal or other irregular shapes, thereby forming a limit between the limiting block 260 and the mounting post 213a, preventing relative rotation between the two, and improving the reliability of the overall structure.

[0130] In other examples, the mounting post 213a and the first part 213 of the fixing base 210 can also be detachably connected. The specific structure can be the same as the structure described above, or other detachable structures such as snap-fit ​​or threaded connection can be used. Therefore, this application does not impose any special limitations on this.

[0131] To ensure that the rotation axis of the rotating seat 220 coincides with the optical axis of the camera body 100 during rotation, and that the light-passing hole 230a formed by the plurality of blades 230 coincides with the optical axis of the camera body 100, thereby improving the shooting effect and preventing the light-receiving surface of the camera body 100 from being blocked. Please refer to Figures 16 and 17. Figure 16 is a structural diagram of another variable aperture motor 200 provided in this application embodiment, and Figure 17 is an exploded view of the variable aperture motor 200 provided in Figure 16.

[0132] Therefore, along the rotation axis parallel to the rotating base 220, the second portion 214 near the end of the first portion 213 forms a first inclined surface 214b, and the fourth portion 224 away from the end of the third portion 223 forms a second inclined surface 224d. Both the first inclined surface 214b and the second inclined surface 224d extend around the rotation axis of the rotating base 220, and the first inclined surface 214b and the second inclined surface 224d abut against each other. For example, the first inclined surface 214b and the second inclined surface 224d have the same inclination angle; for example, the inclination angles of the first inclined surface 214b and the second inclined surface 224d can both be 45°.

[0133] In this way, both the first inclined surface 214b and the second inclined surface 224d form a conical structure. When the first inclined surface 214b and the second inclined surface 224d abut against each other, a limiting structure can be formed between the rotating seat 220 and the fixed seat 210, that is, the relative radial movement between the rotating seat 220 and the fixed seat 210 can be restricted, thereby ensuring the coaxiality between the rotating seat 220 and the fixed seat 210. Since the fixed seat 210 is relatively fixed to the camera body 100, the rotation axis of the rotating seat 220 can be ensured to coincide with the optical axis of the camera body 100.

[0134] In some examples, please continue to refer to Figures 16 and 17. Multiple limiting protrusions 215 may be provided on the first inclined surface 214b or the second inclined surface 224d, with the multiple limiting protrusions 215 spaced apart around the rotation axis. For example, if the multiple limiting protrusions 215 are provided on the first inclined surface 214b, in this structure, when the limiting protrusions 215 abut against the second inclined surface 224d, they can reduce the frictional force generated during relative rotation between the first inclined surface 214b and the second inclined surface 224d, thus making the rotation of the rotating seat 220 smoother.

[0135] For example, the aforementioned limiting protrusion 215 can adopt a hemispherical structure, which helps to further reduce the contact area between the second inclined surface 224d and the first inclined surface 214b, thereby further reducing friction. It is understood that the shape of the limiting protrusion 215 can also be other shapes, such as a spherical structure composed of multiple planes. Therefore, this application does not make any special limitation in this regard.

[0136] To further enhance the limiting effect between the rotating seat 220 and the fixed seat 210, please refer to Figures 16 and 17. The variable aperture motor 200 provided in this embodiment may further include an adsorption ring 270. This adsorption ring 270 is disposed on the surface of the first portion 213 of the fixed seat 210 facing the rotating seat 220, and the adsorption ring 270 is disposed opposite to the end face of the fourth portion 224 of the fixed seat 210 away from the third portion 223. The adsorption ring 270 can apply an adsorption force to the rotating seat 220, thereby enhancing the limiting force between the rotating seat 220 and the fixed seat 210, ensuring that the second inclined surface 224d always abuts against the limiting protrusion 215 on the first inclined surface 214b, thus further ensuring the coaxiality between the rotating seat 220 and the fixed seat 210.

[0137] For example, the adsorption ring 270 can be directly fixed to the surface of the first portion 213. Alternatively, the adsorption ring 270 can be embedded inside the first portion 213, with the surface of the adsorption ring 270 flush with the surface of the first portion 213. Therefore, this application does not impose any special limitations on the arrangement of the adsorption ring 270.

[0138] Based on the above, the plurality of blades 230 are disposed between the second part 214 of the fixed base 210 and the third part 223 of the rotating base 220. Please refer to Figures 18, 19 and 20. Figure 18 is an exploded view of another variable aperture motor 200 provided in the embodiment of this application. Figure 19 is a first-view structural view of the blades 230 of the variable aperture motor 200 provided in Figure 18. Figure 20 is a second-view structural view of the blades 230 of the variable aperture motor 200 provided in Figure 18.

[0139] Specifically, the first end 233 of the blade 230 is rotatably connected to the second part 214 of the fixed base 210, and the two can be rotatably connected by the aforementioned pin. Alternatively, a rotating block 235 can be provided at the first end 233 of the blade 230, and a corresponding rotating hole 214c can be opened on the second part 214 of the fixed base 210. The rotating block 235 extends into the corresponding rotating hole 214c to achieve a rotatable connection between the blade 230 and the fixed base 210.

[0140] Furthermore, the second end 234 of the blade 230 and the third part 223 of the rotating seat 220 can also be slidably connected by a pin. Alternatively, a sliding block 236 can be provided at the second end 234 of the blade 230, and a slotted hole 223a (i.e., the aforementioned waist-shaped hole) can be formed on the third part 223 of the rotating seat 220. The sliding block 236 extends into the corresponding slotted hole 223a, so that while the rotating seat 220 rotates, the rotating seat 220 and the blade 230 slide relative to each other, thereby causing the blade 230 to rotate around the aforementioned rotating hole 214c. For example, the length direction of the slotted hole 223a on the third part 223 can be the radial direction of the second through hole 211, or the slotted hole 223a can also be set in other directions. Therefore, this application does not impose any special limitations on this.

[0141] Please refer to Figures 21, 22, and 23. Figure 21 is a front view of the variable aperture motor 200 provided in Figure 18 (only one blade 230 is shown, and the rotating seat 220 is in the first position). Figure 22 is a front view of the variable aperture motor 200 provided in Figure 18 (only one blade 230 is shown, and the rotating seat 220 is in the second position). Figure 23 is a front view of the variable aperture motor 200 provided in Figure 18 (the rotating seat 220 is not shown, and the two blades 230 are located in two different positions).

[0142] As shown in Figures 21 and 22, when the rotating seat 220 is in the first position, the sliding block 236 is located at one end of the strip hole 223a. When the rotating seat 220 is in the second position, the sliding block 236 is located at the other end of the strip hole 223a. As shown in Figure 23, when the rotating seat 220 is in the first position, the blade 230 is located at the position shown by the solid line in the figure. When the rotating seat 220 is in the second position, the blade 230 is located at the position shown by the dashed line in the figure.

[0143] It is understood that since the first end 233 of the blade 230 is rotatably connected to the fixed base 210, the cross-sections of the aforementioned rotating block 235 and rotating hole 214c are both circular. Meanwhile, since the second end 234 of the blade 230 is slidably connected to the rotating base 220, meaning the sliding block 236 can slide along the length of the strip hole 223a, the cross-section of the sliding block 236 can be circular, polygonal, elliptical, or other irregular shapes. This application does not impose any special limitations on the cross-sectional shape of the sliding block 236.

[0144] In some embodiments, please refer to Figures 24 and 25. Figure 24 is a front view of the variable aperture motor 200 (including multiple blades 230) provided in Figure 18, and Figure 25 is an enlarged view of the structure of region A in Figure 24. The edge of the light-transmitting hole 230a formed by the multiple blades 230 is a first edge 237, and the light-transmitting hole 230a can be coaxially arranged with the first through hole 221 opened on the third part 223 of the aforementioned rotating seat 220.

[0145] Furthermore, on the edge of the light-transmitting aperture 230a, a bend point 238 is formed at the junction of two adjacent first edges 237, resulting in multiple bend points 238 on the light-transmitting aperture 230a. In this way, when the user takes a picture, the multiple bend points 238 on the light-transmitting aperture 230a can create a starburst effect in the captured image, enhancing the aesthetics of the image and improving the user experience.

[0146] It is understandable that the aforementioned starburst effect is due to the diffraction of light at different angles on the inner wall of the light-transmitting aperture 230a (i.e., the inner wall at the first edge 237 of the multiple blades 230) when the light enters the aperture 230a.

[0147] Furthermore, the number of blades 230 can be set to an odd number, such as 5, 7, or 9. This allows an odd number of bending points 238 to be formed on the edge of the light-transmitting aperture 230a. Since an odd number of bending points 238 will not form a symmetrical structure on the edge of the light-transmitting aperture 230a, the number of starburst points formed in the captured image can be doubled. That is, when the number of blades 230 is 9, the captured image can form 18 starburst points. This allows for the use of fewer blades 230 while still achieving double the number of starburst points in the captured image, thus reducing the number of blades 230 while obtaining better shooting results.

[0148] Furthermore, please refer to Figures 24 and 25. The first edge 237 of the aforementioned blades 230 can be formed into an arc shape to ensure the roundness of the light-transmitting aperture 230a formed by the multiple blades 230, which is beneficial to improving the shooting effect. Each first edge 237 forms a complete arc, ensuring that the bending point 238 formed by the first edges 237 of adjacent blades 230 is not blocked. This guarantees that the number of bending points 238 on the light-transmitting aperture 230a is always equal to the number of blades 230, thus ensuring that the aforementioned starburst effect can be formed in the captured image regardless of how the size of the light-transmitting aperture 230a is adjusted.

[0149] It should be noted that when the rotating base 220 is rotated to the first position mentioned above, since the multiple blades 230 fully open the first through hole 221, meaning the blades 230 are blocked by the third part 223, external light enters through the first through hole 221. The first through hole 221 is a circular hole opened on the third part 223 and has no bending point 238. Therefore, under these conditions, the aforementioned starburst effect cannot be displayed in the captured image.

[0150] Furthermore, when the rotating seat 220 rotates to the aforementioned second position, and the blade 230 completely blocks the first through hole 221, the amount of light entering is zero, meaning the camera module 40 is turned off, and therefore, shooting is not possible. Apart from these two situations, the variable aperture motor 200 provided in this embodiment can produce a starburst effect in the captured images.

[0151] In some possible examples, please refer to Figures 26 and 27. Figure 26 is an exploded view of another variable aperture motor 200 provided in an embodiment of this application, and Figure 27 is a front view of the variable aperture motor 200 provided in Figure 26. The variable aperture motor 200 may also include a shielding plate 280, which is an annular structure. The shielding plate is fixed to the end face of the rotating seat 220 away from the fixed seat 210, that is, the shielding plate is fixed to the end face of the third part 223 of the rotating seat 220 away from the fourth part 224, and the shielding plate covers the aforementioned plurality of strip holes 223a. In this way, the strip holes 223a on the rotating part and the blades 230 and other structures in the inner layer of the rotating part are not visible from the external appearance of the variable aperture motor 200, which helps to improve the overall aesthetics.

[0152] In addition, the variable aperture motor 200 may also include a shim 290, which is fixed to the surface of the mounting base 210 facing the blade 230. That is, the shim 290 is fixed to the end face of the second part 214 of the mounting base 210 away from the first part 213, so that the multiple blades 230 are in contact with the shim 290. The shim 290 is used to reduce friction so that the blades 230 can rotate smoothly.

[0153] For example, the aforementioned baffle, gasket 290, and blade 230 can all be made of Mylar sheet material. Mylar sheet has advantages such as dimensional stability, flatness, and excellent tear resistance.

[0154] The above is a detailed description of the structure of the variable aperture motor 200. The following describes the connection method between the variable aperture motor 200 and the camera body 100. Please refer to Figures 28, 29, 30, 31, and 32. Figure 28 is a front view of another variable aperture motor 200 provided in this embodiment; Figure 29 is a top view of the variable aperture motor 200 provided in Figure 28; Figure 30 is a bottom view of the variable aperture motor 200 provided in Figure 28; Figure 31 is a side view of the variable aperture motor 200 provided in Figure 28; and Figure 32 is a BB cross-sectional view of Figure 29. In Figures 29 and 30, the rotating seat 220 is in the first position, i.e., the first through hole 221 is fully open, and the blade 230 shown in Figure 27 is hidden. Therefore, the light-transmitting hole 230a is not shown.

[0155] A recessed space is formed on the end face of the fixed base 210 away from the rotating base 220 (as shown in Figure 32), and the camera body 100 shown in Figure 4 can extend into this recessed space. Furthermore, a second through hole 211 communicating with this recessed space is provided on the second part 214 of the fixed base 210, so that external light sequentially passes through the first through hole 221, the light-transmitting hole 230a (not shown in the figure), and the second through hole 211 into the light-receiving surface of the camera body 100.

[0156] The camera body 100 may include an optical lens, a drive motor, and a housing (not shown in the figure). The housing is a structural component, and the optical lens and drive motor are both housed inside the housing. The housing is fixedly connected to a mounting base to achieve a fixed connection between the camera body 100 and the variable aperture motor 200. In some examples, the camera body 100 may not include a housing, meaning the drive motor of the camera body can be directly fixedly connected to the mounting base 210. This drive motor can be an autofocus motor or other types of drive motors. Therefore, this application does not impose any special limitations on this.

[0157] In some embodiments, the variable aperture motor 200 may further include a first conductive sheet 251, one end of which is welded and fixed to the plurality of coils 250, and the other end extends out of the outer side of the fixing base 210. For example, two first conductive sheets 251 may be provided and symmetrically distributed on both sides of the rotation axis of the rotating base 220. One coil 250 in each group of coils 250 is fixedly connected to and electrically connected to one first conductive sheet 251, and the other coil 250 in each group of coils 250 is fixedly connected to and electrically connected to another first conductive sheet 251.

[0158] The aforementioned drive motor includes at least a mover and a stator, and the mover and stator are connected by an electromagnetic drive structure to achieve the movement of the mover relative to the stator. This electromagnetic drive structure includes at least a first magnetic element and a first coil. When the first coil is fixed to the mover, i.e., when conductive lines are laid on the mover, the first coil or conductive lines can be directly welded and fixed to the aforementioned first conductive sheet, thereby achieving an electrical connection between the variable aperture motor and the camera body.

[0159] With the first magnetic component fixed to the mover, the drive motor may include a second conductive plate. One end of the second conductive plate is electrically connected to the conductive line of the drive motor or the first coil, and the other end of the second conductive plate is welded and fixed to the first conductive plate 251, thereby realizing the electrical connection between the variable aperture motor 200 and the camera body 100. Therefore, this application does not impose any special limitations on the connection method between the variable aperture motor 200 and the camera body.

[0160] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0161] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology 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 motor, characterized in that, include: Fixed base; A rotating seat is disposed on the fixed seat and is capable of rotating relative to the fixed seat; Multiple blades are disposed between the fixed base and the rotating base, and the multiple blades are distributed around the rotation axis of the rotating base; the first end of the blade is rotatably connected to the fixed base, and the second end of the blade is slidably connected to the rotating base; The coil is provided in multiple sets, and the multiple sets of coils are distributed at intervals around the rotation axis of the rotating seat. Each set of coils includes two coils and is symmetrically distributed on both sides of the rotation axis of the rotating seat. A magnetic component is disposed opposite to the coil, one of the coil and the magnetic component is disposed on the fixed base, and the other of the coil and the magnetic component is disposed on the rotating base.

2. The variable aperture motor according to claim 1, characterized in that, The fixed base includes a first part and a second part, and the rotating base includes a third part and a fourth part. The fourth part extends around the edge of the third part to form a receiving space, and the second part extends into the receiving space. The coil and the magnetic element are disposed between the second part and the fourth part.

3. The variable aperture motor according to claim 2, characterized in that, The coil is fixed to the second part of the fixed base, and the magnetic component is fixed to the fourth part of the rotating base.

4. The variable aperture motor according to claim 3, characterized in that, The second part has a first receiving groove on its outer side wall, and the coil is fixed in the first receiving groove.

5. The variable aperture motor according to claim 3, characterized in that, A second receiving groove is provided on the outer wall of the fourth part, and the magnetic component is fixed in the second receiving groove.

6. The variable aperture motor according to claim 5, characterized in that, The inner wall of the fourth part has a communication opening, which is connected to the second receiving groove.

7. The variable aperture motor according to claim 2, characterized in that, The first part is provided with a limiting block, and the fourth part is provided with a limiting notch. The limiting notch extends around the rotation axis of the rotating seat, and the limiting block is located within the limiting notch.

8. The variable aperture motor according to any one of claims 2 to 7, characterized in that, Along a direction parallel to the rotation axis of the rotating seat, the second part has a first inclined surface at the end near the first part, and the fourth part has a second inclined surface at the end away from the third part. The first inclined surface and the second inclined surface extend around the rotation axis of the rotating seat, and the first inclined surface abuts against the second inclined surface.

9. The variable aperture motor according to claim 8, characterized in that, Multiple limiting protrusions are provided on the first or second inclined surface, and the multiple limiting protrusions are distributed at intervals around the rotation axis of the rotating seat.

10. The variable aperture motor according to claim 8 or 9, characterized in that, The variable aperture motor also includes an adsorption ring, which is disposed on the surface of the first part facing the rotating seat, and the adsorption ring is opposite to the end face of the fourth part away from the third part.

11. The variable aperture motor according to any one of claims 1 to 10, characterized in that, The coil is provided in three sets, and the three sets of coils are distributed at intervals around the rotation axis of the rotating seat.

12. The variable aperture motor according to claim 11, characterized in that, The central angle formed between two adjacent sets of coils is greater than or equal to 30°.

13. The variable aperture motor according to claim 12, characterized in that, Two magnetic components are provided and symmetrically distributed on both sides of the rotation axis of the rotating seat. The two magnetic components are corresponding to the two coils in each group of coils.

14. The variable aperture motor according to any one of claims 1 to 13, characterized in that, The rotating base has multiple strip-shaped holes, and each of the multiple strip-shaped holes corresponds to one of the multiple blades; a sliding block is provided at the second end of each blade, and the sliding block extends into the strip-shaped hole.

15. The variable aperture motor according to claim 14, characterized in that, The strip-shaped hole extends radially along the rotating seat.

16. The variable aperture motor according to claim 14, characterized in that, The variable aperture motor includes a baffle plate disposed on the end face of the rotating seat away from the fixed seat, and the baffle plate covers the strip hole.

17. The variable aperture motor according to any one of claims 1 to 16, characterized in that, The rotating seat is provided with a first through hole, and the rotating seat can rotate relative to the fixed seat between a first position and a second position. When the rotating seat is in the first position, the plurality of blades open the first through hole; when the rotating seat is in the second position, the plurality of blades block the first through hole.

18. The variable aperture motor according to any one of claims 1 to 17, characterized in that, The edge of the blade near the rotation axis of the rotating seat is the first edge, and multiple first edges form a light-transmitting hole. A bending point is formed at the junction of two adjacent first edges, and multiple bending points are formed on the light-transmitting hole.

19. The variable aperture motor according to claim 18, characterized in that, The number of blades is odd.

20. The variable aperture motor according to claim 19, characterized in that, The number of blades is 9.

21. The variable aperture motor according to any one of claims 18 to 20, characterized in that, The first edge is arc-shaped.

22. A camera module, characterized in that, include: The camera itself; The variable aperture motor is the variable aperture motor according to any one of claims 1 to 21, wherein the variable aperture motor is disposed on the light-incident side of the lens, and the variable aperture motor is electrically connected to the camera body.

23. The camera module according to claim 22, characterized in that, The variable aperture motor is provided with a first conductive plate, which is electrically connected to the coil of the variable aperture motor; the camera body includes an optical lens and a drive motor, and the conductive lines of the drive motor are welded to the first conductive plate.

24. The camera module according to claim 23, characterized in that, The drive motor is provided with a second conductive plate, one end of which is electrically connected to the conductive circuit of the drive motor, and the other end of which is welded to the first conductive plate.

25. An electronic device, characterized in that, include: The outer casing includes a middle frame and a back cover, wherein the back cover is fixedly connected to the middle frame, and an installation notch is provided on the back cover; A camera decorative cover is fixed to the mounting notch, and a light-transmitting window is provided on the camera decorative cover; A camera module, wherein the camera module is the camera module according to any one of claims 22 to 24, the camera module is fixed between the middle frame and the back cover, and the variable aperture motor of the camera module is opposite to the light-transmitting window.

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