Aperture assembly, camera module and electronic equipment

Abstract

The invention provides an aperture assembly, a camera module and an electronic device, the aperture assembly comprises a fixed part assembly and a rotating disc, and the rotating disc is rotatably connected with the fixed part assembly; the plurality of blades are arranged on the same side of the fixed part assembly and the turntable along the optical axis direction of the aperture assembly, and define an aperture hole; one end of the SMA wire is connected with the fixed part assembly, the other end of the SMA wire is connected with the rotating disc, and the SMA wire deforms to drive the rotating disc to rotate and drive the blades to rotate relative to the fixed part assembly and slide relative to the rotating disc so as to change the size of the aperture hole when powered on; the first chip is arranged on the fixed part assembly, the first magnet is arranged on the rotating disc, the first chip is located in a magnetic field of the first magnet, and the first chip and the first magnet are used for driving the aperture hole to meet the target aperture. According to the aperture assembly, the camera module and the electronic equipment provided by the invention, the size and the weight of the camera module can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of camera, in particular, to an aperture assembly, a camera module and an electronic device. BACKGROUND

[0002] The variable aperture in the camera module adjusts the light amount of the camera by changing the aperture size to optimize the image quality. At present, the driving of the variable aperture usually adopts the scheme of voice coil motor magnet driving. After the coil is electrified, the force is generated to the magnet, so that the magnet rotates, and the magnet drives the blade to rotate correspondingly when rotating. In order to achieve the required driving force, the magnet assembly needs to be designed with a larger size, thereby causing the camera module to have a larger size and a larger weight. SUMMARY

[0003] The present application provides an aperture assembly, a camera module and an electronic device, which can reduce the size and weight of the camera module.

[0004] In a first aspect, an aperture assembly is provided, comprising: a fixed component assembly; a rotating disc rotationally connected with the fixed component assembly; a plurality of blades, the plurality of blades are arranged on the same side of the fixed component assembly and the rotating disc along the optical axis direction of the aperture assembly, the plurality of blades jointly enclose an aperture hole, the plurality of blades are respectively rotationally connected with the fixed component assembly and slidingly connected with the rotating disc; a shape memory alloy (SMA) wire, one end of the SMA wire is connected with the fixed component assembly, the other end of the SMA wire is connected with the rotating disc, the SMA wire is used to deform when electrified to drive the rotating disc to rotate relative to the fixed component assembly, and drive the plurality of blades to rotate relative to the fixed component assembly and slide relative to the rotating disc to change the size of the aperture hole; a first chip and a first magnet, the first chip is arranged on the fixed component assembly, the first magnet is arranged on the rotating disc, and the first chip is located in the magnetic field of the first magnet, the first chip is used to determine the position of the first magnet according to the magnetic field of the first magnet, so that the aperture hole meets a target aperture.

[0005] In the embodiments provided in this application, an SMA line is used to drive the turntable to rotate in order to adjust the size of the aperture aperture. The SMA line has a small volume and occupies a small area, which can reduce the size and weight of the aperture assembly. In addition, a first magnet and a first chip are provided. The first magnet is set on the turntable and rotates with the turntable, while the first chip is set on the fixed component and its position does not change. When the turntable rotates, the first chip detects that the magnetic field strength of the first magnet changes. The first chip can determine the position of the first magnet based on the change in the magnetic field of the first magnet, thereby determining whether the aperture aperture meets the target aperture diameter. Using the first magnet and the first chip, the aperture aperture size can be accurately adjusted and is not easily affected by the nonlinear relationship between the deformation of the SMA line and temperature changes. In this case, the SMA line can utilize a large deformation range and has a small length, thereby further reducing the size of the aperture assembly.

[0006] In conjunction with the first aspect, in some implementations of the first aspect, the first chip and the first magnet are disposed opposite each other along a first direction, the first direction being the radial direction of the aperture assembly.

[0007] In the embodiments provided in this application, the first chip and the first magnet are arranged opposite each other along a first direction, which makes the aperture assembly easy to process and assemble.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the aperture assembly further includes a first magnetic clasp, which is disposed on the fixing component assembly, and the first magnetic clasp and the first magnet are disposed opposite to each other along a first direction, the first direction being the radial direction of the aperture assembly.

[0009] In the embodiments provided in this application, the aperture assembly includes a first magnetic absorbing plate. The first magnetic absorbing plate and the first magnet are disposed opposite to each other along a first direction. The first magnetic absorbing plate and the first magnet can attract each other, that is, form a lateral magnetic attraction, which can improve the concentricity of the turntable and make the turntable position less prone to displacement. Furthermore, by using the first magnet and the first magnetic absorbing plate to form a lateral magnetic attraction, there is no need to set an additional magnet, which can simplify the structure of the aperture assembly and thus further reduce the size and weight of the aperture assembly.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the aperture assembly further includes a second magnetic clasp, which is disposed on the fixing component assembly, and the second magnetic clasp and the first magnet are disposed opposite each other along a second direction, the second direction being the optical axis direction of the aperture assembly.

[0011] In the embodiments provided in this application, the aperture assembly includes a second magnetic chuck. The second magnetic chuck and the first magnet are disposed opposite each other along a second direction. The second magnetic chuck and the first magnet can attract each other, forming a bottom magnetic attraction, which enables the turntable to self-lock. This allows the turntable to overcome the restoring force of the SMA line and the static friction of the turntable through the magnetic attraction force after the SMA line is de-energized, preventing relative movement and thus reducing the power consumption of the aperture assembly. Furthermore, by utilizing the magnetic attraction force between the first magnet and the second magnetic chuck, there is no need to set up an additional magnet, which simplifies the structure of the aperture assembly and further reduces its size and weight.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the aperture assembly further includes a first jaw, the first jaw being connected to the fixing assembly, and one end of the SMA line being connected to the first jaw; and / or, the aperture assembly further includes a second jaw, the second jaw being connected to the turntable, the other end of the SMA line being connected to the second jaw, the projection of the first jaw along a second direction not overlapping with the second jaw, the second direction being the optical axis direction of the aperture assembly.

[0013] In the embodiments provided in this application, the aperture assembly includes a first jaw and / or a second jaw. The SMA line is connected to the mounting assembly via the first jaw, and / or the SMA line is connected to the turntable via the second jaw. This makes the connection between the SMA line and the mounting assembly and / or the turntable more stable, and makes it easier to assemble the SMA line with the mounting assembly and / or the turntable.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the first jaw includes a first jaw body and a first connecting portion, the first connecting portion being disposed on the main plane of the first jaw body, the first jaw body being connected to the fixed component assembly, and the first connecting portion being connected to the SMA line; and / or, the second jaw includes a second jaw body and a second connecting portion, the second connecting portion being disposed on the main plane of the second jaw body, the second jaw body being connected to the turntable, and the second connecting portion being connected to the SMA line.

[0015] In the embodiments provided in this application, the first jaw includes a first jaw body and a first connecting part. The first jaw body is used to connect with the fixed part assembly, and the first connecting part is used to connect with the SMA line, which makes it easier to assemble the SMA line with the first jaw. Similarly, the second jaw includes a second jaw body and a second connecting part. The second jaw body is used to connect with the turntable, and the second connecting part is used to connect with the SMA line, which makes it easier to assemble the SMA line with the second jaw.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the main plane of the first claw body is perpendicular to the optical axis direction of the aperture assembly; and / or, the main plane of the second claw body is perpendicular to the optical axis direction of the aperture assembly.

[0017] In the embodiments provided in this application, the main plane of the first claw body is perpendicular to the optical axis direction of the aperture assembly, and / or the main plane of the second claw body is perpendicular to the optical axis direction of the aperture assembly. That is, by placing the first claw and / or the second claw flat, the space occupied by the claw in the optical axis direction can be reduced, and the size of the aperture assembly in the optical axis direction can be reduced.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the first claw is made of a metal material, a first connecting line is provided inside the fixing component, and the first claw is electrically connected to the first connecting line; and / or, the second claw is made of a metal material, a second connecting line is provided inside the turntable, and the second claw is electrically connected to the second connecting line.

[0019] In the embodiments provided in this application, the first claw is made of metal and is electrically connected to the first connecting wire in the fixing component assembly, and / or the second claw is made of metal and is electrically connected to the second connecting wire in the turntable, which facilitates the conduction of the circuit where the SMA wire is located, so that the SMA wire can work normally. Furthermore, embedding the first connecting wire and the second connecting wire in the fixing component assembly and the turntable respectively can improve the structural strength of the fixing component assembly and the turntable.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the aperture assembly further includes a first connector, one end of which is electrically connected to the first connecting line, and the other end of which is electrically connected to the second connecting line.

[0021] In the embodiments provided in this application, the first connector is electrically connected to the first connecting line and the second connecting line respectively, which facilitates the conduction of the circuit where the SMA line is located, so that the first connecting line, the first claw, the SMA line, the second claw, the second connecting line and the first connector together constitute an electrical circuit.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, the first connector is an elastic connector, and when the SMA line is energized, the first connector is in a stretched state.

[0023] In the embodiments provided in this application, the first connector is an elastic connector, and when the SMA line is energized, the first connector is in a stretched state and is subjected to a pulling force from the turntable. After the SMA line is de-energized, the pulling force from the turntable on the first connector is removed, and the first connector can restore its deformation, thereby providing a restoring force to the turntable, pulling the turntable to rotate in the opposite direction and return to its initial position.

[0024] In conjunction with the first aspect, in some implementations of the first aspect, the aperture assembly further includes a first circuit board, at least a portion of which is disposed on the fixture assembly, and the first chip is electrically connected to the first circuit board.

[0025] In the embodiments provided in this application, the aperture assembly includes a first circuit board, at least a portion of which is disposed on the fixture assembly and electrically connected to the first chip, thereby making the electrical connection structure of the aperture assembly easier to manufacture.

[0026] In conjunction with the first aspect, in some implementations of the first aspect, the number of SMA lines is greater than or equal to two.

[0027] In the embodiments provided in this application, the number of SMA lines is greater than or equal to two, which can increase the driving force of the SMA lines on the turntable and make the rotation of the turntable more stable.

[0028] In conjunction with the first aspect, in some implementations of the first aspect, the fixing component includes a base, the base including a ball groove; the aperture component further includes a ball, the ball being accommodated in the ball groove, and the turntable being supported on the ball.

[0029] In the embodiments provided in this application, the aperture assembly includes ball bearings, which are disposed in ball bearing grooves in the base. The turntable is supported on the ball bearings, which facilitates the positioning of the turntable and improves the concentricity of the turntable.

[0030] In a second aspect, a camera module is provided, including a lens and an aperture assembly as described in the first aspect or any possible implementation thereof, the aperture assembly being disposed at the front end of the lens, the aperture aperture of the aperture assembly being used to guide light into the lens.

[0031] Thirdly, an electronic device is provided, including a camera module as described in the second aspect or any possible implementation thereof, and a housing for housing the camera module. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the structure of a camera module provided in an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the overall structure of an aperture assembly provided in an embodiment of this application;

[0035] Figures 4 to 6 This is an exploded structural diagram of the aperture assembly provided in an embodiment of this application;

[0036] Figure 7 This is a cross-sectional structural diagram of an aperture assembly provided in an embodiment of this application;

[0037] Figure 8 This is a schematic diagram of the structure of the component assembly provided in the embodiments of this application;

[0038] Figure 9 This is a schematic diagram of the structure of the turntable provided in the embodiment of this application;

[0039] Figure 10 This is a schematic diagram of the structure of the base provided in the embodiment of this application;

[0040] Figure 11 and Figure 12 This is a schematic diagram of the chuck structure provided in an embodiment of this application;

[0041] Figure 13 and Figure 14 This is a schematic diagram of the lateral magnetic attraction assembly provided in the embodiments of this application;

[0042] Figure 15 This is a schematic diagram of the overall structure of an aperture assembly provided in an embodiment of this application;

[0043] Figure 16 This is a schematic diagram of the structure of a light-shielding sheet provided in an embodiment of this application. Detailed Implementation

[0044] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0045] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0046] In the various embodiments of this application, the terms "first," "second," etc., are merely to indicate that multiple objects are different. For example, "first magnetic piece" and "second magnetic piece" are only to indicate different magnetic pieces. They should not have any impact on the magnetic pieces themselves or their quantity, and the aforementioned "first," "second," etc., should not impose any limitations on the embodiments of this application.

[0047] The terms “including,” “comprising,” “having,” and variations thereof all mean “including but not limited to,” unless otherwise specifically emphasized.

[0048] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device 100 can be an electronic device with camera or photo-taking function, such as a mobile phone, tablet computer, television (or smart screen), laptop computer, camcorder, video recorder, camera, etc. For ease of understanding, this embodiment of the application uses a mobile phone as an example for illustration.

[0049] Electronic device 100 may include a display screen 130 and a housing 140. The housing may include a bezel and a back cover. The bezel may surround the outer periphery of the display screen 130, and the bezel may surround the outer periphery of the back cover. There may be a gap between the display screen 130 and the back cover to accommodate electronic components required by the electronic device.

[0050] A front-facing camera module 110 can be installed on the display screen 130 of the electronic device 100. For example... Figure 1 As shown in the left figure, the front-facing camera module 110 can be mounted on the upper left of the display screen 130. The front-facing camera module 110 can be used for selfies, for example.

[0051] A rear camera module 120 can be installed on the back cover of the electronic device 100. For example... Figure 1 As shown in the right figure, the rear camera module 120 can be mounted on the upper middle part of the back cover. The rear camera module 120 can be used, for example, to capture the scene around the electronic device 100.

[0052] It should be understood that Figure 1 The installation positions of the front-facing camera module 110 and the rear-facing camera module 120 shown are merely illustrative, and this application does not limit the installation positions of the camera modules. In some other embodiments, the front-facing camera module 110 and the rear-facing camera module 120 may also be installed in other locations on the electronic device 100. For example, the front-facing camera module 110 may be installed in the upper center or upper right of the display screen 130. Similarly, the rear-facing camera module 120 may be installed in the upper left or upper right of the back cover. Furthermore, Figure 1The number of front-facing camera modules 110 and rear-facing camera modules 120 shown is illustrative, and this application does not limit the number of camera modules. The electronic device 100 may include more or fewer camera modules.

[0053] Figure 2 This is a schematic diagram of the overall structure of a camera module provided in an embodiment of this application. The camera module can be... Figure 1 The front-facing camera module 110 of the electronic device shown can also be a rear-facing camera module 120. When the camera module is a rear-facing camera module 120, the camera module 120 can be a main camera module, or it can be any one of the camera modules included in a rear-facing camera module, such as a wide-angle camera module, a telephoto camera module, or a periscope camera module.

[0054] The camera module may include an aperture assembly 121, a lens assembly 122, a drive assembly 123, and a circuit board assembly 124, which are stacked on top of each other.

[0055] The aperture assembly 121 can be located at the front end of the lens assembly 122 to adjust the amount of light entering the lens to improve image quality. The specific structure of the aperture assembly 121 can be found in the description below, which will not be detailed here.

[0056] The lens assembly 122 may include a lens barrel and a lens group disposed in the lens barrel. The lens assembly 122 is used to image an object-side scene onto an image-side imaging plane.

[0057] In some embodiments, the lens assembly 122 may be a fixed-focus lens or a zoom lens.

[0058] In some embodiments, the lens assembly 122 may be a wide-angle lens, a standard lens, or a telephoto lens.

[0059] In some embodiments, the lens assembly 122 may be a vertical lens or a periscope lens.

[0060] The drive assembly 123 can be used to control the movement of the lens assembly 122 to achieve autofocus and / or optical image stabilization.

[0061] The drive assembly 123 may include a motor for moving the lens assembly 122 for autofocus (AF) (hereinafter referred to as the AF motor) and a motor for moving the lens assembly 122 for optical image stabilization (OIS) (hereinafter referred to as the OIS motor). The AF motor controls the movement of the lens assembly 122 in the optical axis direction, i.e., the z-axis direction shown in the figure, and the OIS motor controls the movement of the lens assembly 122 in the x-axis direction or the y-axis direction. The AF motor and the OIS motor may be two independent components, each independently driving the lens assembly 122 for autofocus and optical image stabilization, respectively. Alternatively, the AF motor and the OIS motor may be the same component, which can drive the lens assembly 122 for both autofocus and optical image stabilization.

[0062] One end of the circuit board assembly 124 can be electrically connected to the motherboard in the electronic device to provide electrical signals for the camera module. The drive assembly 123, lens assembly 122, and aperture assembly 121 can be stacked sequentially on the circuit board assembly 124.

[0063] Figure 3 for Figure 2 The diagram shown illustrates the overall structure of the aperture assembly 121 in the camera module. Figures 4 to 6 This is an exploded structural diagram of the aperture assembly 121.

[0064] like Figure 3 As shown, the aperture assembly 121 may include a cover plate 250, blades 240, a fixing assembly 290, and a turntable 220. The cover plate 250 may be located at the end of the aperture assembly 121 furthest from the lens assembly 122. The cover plate 250 can serve as a decorative structural component within the aperture assembly 121 and can also protect the internal structural components within the aperture assembly 121. The fixing assembly 290 may be a structure that does not move relative to the housing of the electronic device. The cover plate 250 and the fixing assembly 290 can form a receiving space to accommodate other structures within the aperture assembly 121. The multiple blades 240 may be arranged in a ring and enclose an aperture opening to allow light to pass through the aperture opening and enter the lens assembly 122. The blade 240 and the turntable 220 can be located in the receiving space enclosed by the cover plate 250 and the fixed component assembly 290. The turntable 220 can rotate relative to the fixed component assembly 290 to drive the blade 240 to rotate and adjust the size of the aperture.

[0065] Figure 4 This is a structural diagram showing the structure when the cover plate 250 is separated from the aperture assembly 121, as shown below. Figure 4As shown, the side of the fixing component 290 near the cover plate 250 may include a first connecting post 236. Correspondingly, the cover plate 250 may include a first mounting hole 252 through which the first connecting post 236 may pass to connect the cover plate 250 to the fixing component 290.

[0066] The number of first connecting posts 236 can be multiple, and the multiple first connecting posts 236 can be arranged around the side of the fixing component assembly 290 near the cover plate 250. The number of first mounting holes 252 can be the same as the number of first connecting posts 236, and the position of the first mounting holes 252 can correspond to the position of the first connecting posts 236, so that the multiple first mounting holes 252 can be connected to the multiple first connecting posts 236 respectively.

[0067] Figure 5 This is a schematic diagram of the structure when the cover plate 250 and the blade 240 are separated from the aperture assembly 121, as shown below. Figure 5 As shown, the fixing component assembly 290 may include a base 210 and a fixing plate 230. The fixing plate 230 may be supported on the base 210, and the aforementioned first connecting post 236 may be disposed on the side of the fixing plate 230 near the cover plate 250. The radial dimension of the turntable 220 may be smaller than the radial dimension of the fixing component assembly 290, and at least a portion of the turntable 220 may be disposed within the space enclosed by the base 210 and the fixing plate 230.

[0068] Reference Figure 4 and Figure 5 In the structure shown, the blade 240 can be arranged on the same side of the fixed component assembly 290 and the turntable 220 along the optical axis. For example, the blade 240 can be arranged on the side of the fixed disk 230 near the cover plate 250 and on the side of the turntable 220 near the cover plate 250. Furthermore, the plurality of blades 240 can be rotatably connected to the fixed disk 230 and slidably connected to the turntable 220, respectively. Specifically, the side of the fixed disk 230 away from the base 210 may also include a second connecting post 234, which can also be called a fixed post, and the side of the turntable 220 away from the base 210 may include a third connecting post 225, which can also be called a rotating post.

[0069] Accordingly, the blade 240 may include a second mounting hole 241 and a third mounting hole 242. The second mounting hole 241 may be circular, and the second connecting post 234 may be fitted into the second mounting hole 241 so that the blade 240 can rotate around the second connecting post 234. The third mounting hole 242 may be arc-shaped, and the arc-shaped structure may extend from a position near the outer edge of the blade 240 toward the axis of the aperture assembly 121. The third connecting post 225 may be fitted into the third mounting hole 242, and the third connecting post 225 may slide relative to the blade 240 in the third mounting hole 242.

[0070] There can be multiple second connecting posts 234 and third connecting posts 225. The number of second connecting posts 234 can be the same as the number of third connecting posts 225, and the number of second connecting posts 234 and third connecting posts 225 can be the same as the number of blades 240. Multiple second connecting posts 234 can be arranged around the fixed disk 230 and can be evenly distributed on the fixed disk 230. Similarly, multiple third connecting posts 225 can be arranged around the turntable 220 and can be evenly distributed on the turntable 220.

[0071] When turntable 220 rotates counterclockwise (e.g.) Figure 4 and Figure 5 (As indicated by the arrow in the image), correspondingly, the third connecting post 225 rotates counterclockwise. This third connecting post 225 can slide within the third mounting hole 242, causing the blades 240 to rotate. Since the third mounting hole 242 extends towards the axis, the third connecting post 225 can cause the blades 240 to rotate towards the axis, reducing the diameter of the aperture 243 enclosed by the multiple blades 240. When the turntable 220 rotates clockwise, the third connecting post 225 causes the blades 240 to rotate away from the axis, increasing the diameter of the aperture 243 enclosed by the multiple blades.

[0072] See also Figures 3 to 5 The structure shown is designed to provide driving force to the turntable 220 so that the turntable 220 can rotate, thereby driving the blades 240 to rotate and change the aperture size. The aperture assembly 121 may also include a shape memory alloy (SMA) wire 270, which can be used to drive the rotation of the turntable 220.

[0073] One end of the SMA cable 270 can be connected to the fixed component assembly 290, and the other end can be connected to the turntable 220. The end of the SMA cable 270 connected to the fixed component assembly 290 can be a fixed end, and the end connected to the turntable 220 can be a movable end. When the SMA cable 270 is energized, it can retract, and the end of the SMA cable 270 connected to the turntable 220 moves closer to the end of the SMA cable 270 connected to the fixed component assembly 290, thereby driving the turntable 220 to rotate.

[0074] Figure 6 This is a schematic diagram of the exploded structure of the aperture assembly 121. Figure 7 This is a schematic diagram of the cross-sectional structure of the aperture assembly 121, that is, along... Figure 3 See the schematic diagram of the cross-sectional structure in the AA direction. Figure 6 and Figure 7 The structure shown allows for precise adjustment of the aperture size by controlling the contraction of the SMA line 270. The aperture assembly 121 may further include a first chip 280 and a first magnet 222. The first chip 280 can be mounted on the fixed component assembly 290, and the first magnet 222 can be mounted on the turntable 220. The first chip 280 can determine the position of the first magnet 222 based on its magnetic field, ensuring that the aperture aperture formed by the blades 240 in the aperture assembly 121 meets the target aperture diameter.

[0075] Specifically, the first chip 280 may integrate a Hall sensor, which operates based on the Hall effect. The Hall effect converts changes in the magnetic field into an electrical signal output to detect and control the magnetic field. The first magnet 222 can also be called a Hall magnet. When the SMA line 270 is energized, it contracts and drives the turntable 220 to rotate counterclockwise. Correspondingly, the first magnet 222 rotates counterclockwise synchronously with the turntable 220. Thus, the position of the first magnet 222 relative to the first chip 280 changes, and the magnetic field detected by the first chip 280 also changes accordingly. The first chip 280 can determine the position of the first magnet 222 based on the change in its magnetic field, thereby determining whether the first magnet 222 has reached the target position so that the aperture formed by the blades 240 meets the target aperture.

[0076] In the embodiments provided in this application, the aperture assembly 121 includes a first chip 280 and a first magnet. The first chip 280 determines whether the blades 240 have enclosed the target aperture based on the position of the first magnet 222, thereby enabling accurate adjustment of the aperture size. Typically, when the deformation of the SMA line 270 is within 1% of its total length, the deformation of the SMA line 270 changes linearly with temperature. After the deformation exceeds 1% of its total length, the deformation of the SMA line 270 changes non-linearly with temperature. In this non-linear stage, it is difficult for the SMA line 270 to accurately determine its own deformation. In this application, the first chip 280 and the first magnet 222 are used. The position of the first magnet 222 determines whether the target aperture has been reached. The SMA line 270 only serves as a force-providing structure and does not need to determine whether the target aperture is met based on its deformation, thus enabling more accurate adjustment of the aperture size. Furthermore, in the scheme of this application, the deformation of the SMA line 270 is not limited to less than 1% of the total length. When the deformation of the SMA line 270 is greater than 1% of the total length, the first chip 280 can still accurately adjust the aperture size according to the position of the first magnet 222. The SMA line 270 has a larger range of available deformation. Therefore, compared with the scheme of using the SMA line 270 to determine whether the aperture size meets the target aperture, the length of the SMA line 270 in this application can be designed to be shorter, thereby enabling the aperture assembly 121 to have a smaller size.

[0077] In some embodiments, the first chip 280 can also be used to drive the rotation of the turntable 220. For example, the first chip 280 can also be used to control the energization and de-energization of the SMA line 270. When the user uses the camera and adjusts the aperture, the first chip 280 can control the SMA line 270 to be energized to drive the turntable 220 to rotate. When the first magnet 222 has not reached the target position, the first chip 280 can continue to energize the SMA line 270 to control the turntable 220 to continue rotating until the first magnet 222 reaches the target position and the aperture hole 243 enclosed by the blades 240 meets the target aperture size.

[0078] In some embodiments, the first chip 280 can also be used to store data, such as the relationship between the position of the first magnet 222 and the aperture size, the target aperture size adjusted by the user, and other data.

[0079] In some embodiments, the number of the first magnets 222 can be one or more, for example, two. The first chip 280 can sense the magnetic fields of the two first magnets 222 respectively and detect the positions of the two first magnets 222.

[0080] In some embodiments, the first chip 280 may be in the form of an integrated circuit (IC).

[0081] Figure 8 As shown in the structure of the fixture component 290 provided in this application embodiment, the first chip 280 can be disposed on the fixture component 290.

[0082] As an example, such as Figure 8 As shown in (a), when the base 210 has a smaller dimension in the z-axis direction and the fixed plate 230 has a larger dimension in the z-axis direction, the first chip 280 can be disposed on the fixed plate 230. Specifically, the fixed plate 230 may include a first top wall 230A and a first side wall 230B. The first top wall 230A may be the side of the fixed plate 230 near the cover plate 250, and the first side wall 230B may be arranged around the bottom of the first top wall 230A and may be supported on the base 210. The first side wall 230B may include a groove 233, which may penetrate the first side wall 230B along a first direction, or penetrate part of the structure of the first side wall 230B. The first direction may be the radial direction of the aperture assembly 121, and the first chip 280 may be disposed in the groove 233.

[0083] In this example, the base 210 may include a base plate 211 and a frame 212. The size of the frame 212 in the z-axis direction may be smaller, for example, smaller than the size of the first sidewall 230B in the z-axis direction. The first sidewall 230B may be supported on the frame 212. Alternatively, the base 210 may only include the aforementioned base plate 211, without the frame 212 (not shown in the figure), and the first sidewall 230B may be directly supported on the base plate 211.

[0084] As another example, such as Figure 8 As shown in (b), when the base 210 has a larger dimension in the z-axis direction and the fixed plate 230 has a smaller dimension in the z-axis direction, the first chip 280 can be disposed on the base 210. Specifically, the base 210 may include a base plate 211 and a surrounding frame 212. The base plate 211 may have a ring-shaped structure and may be located at one end of the aperture assembly 121 near the lens assembly 122. The surrounding frame 212 may be arranged around the base plate 211, and the dimension of the surrounding frame 212 in the z-axis direction may be larger, for example, larger than the dimension of the first sidewall 230B in the z-axis direction. The surrounding frame 212 may include a groove 2124, which may extend through the surrounding frame 212 in a first direction, or the groove 2124 may also extend through a portion of the structure of the surrounding frame 212 in the first direction. The first chip 280 can be disposed in the groove 2124.

[0085] It should be understood that both the first sidewall 230B and the frame 212 may be provided with grooves, and the grooves of the first sidewall 230B and the frame 212 may be interconnected, so that the first chip 280 can be accommodated in the grooves formed by the first sidewall 230B and the frame 212.

[0086] Figure 9 This is a schematic diagram of the structure of a turntable 220 provided in an embodiment of this application. The first magnet 222 can be disposed on the turntable 220.

[0087] like Figure 9 As shown, the turntable 220 may include a second top wall 220A and a second side wall 220B. The second top wall 220A may be located on the same plane as the first top wall 230B to facilitate the mounting of the blade 240. The second side wall 220B may be arranged around the lower part of the second top wall 220A. The second side wall 220B may include a groove 223, which may be disposed on the outer side of the second side wall 220B, that is, on the side of the second side wall 220B near the fixing component assembly 290. The first magnet 222 may be disposed in the groove 223.

[0088] See also Figure 7 The cross-sectional structural diagram shown illustrates that, in some embodiments, the first magnet 222 and the first chip 280 can be disposed opposite each other along a first direction. Correspondingly, the slot 233 housing the first chip 280 can be disposed opposite to the slot 223 housing the first magnet 222 along the first direction.

[0089] When the first chip 280 is disposed in the slot 2124 of the base 210, the slot 2124 can be disposed opposite to the slot 223 along the first direction.

[0090] The first magnet 222 and the first chip 280 are arranged opposite each other along a first direction, which facilitates their installation. When the first magnet 222 and the first chip 280 are arranged opposite each other, the magnetic field detected by the first chip 280 of the first magnet 222 is at its maximum. As the first magnet 222 rotates with the turntable 220, the first magnet 222 and the first chip 280 gradually move away from each other, and the magnetic field detected by the first chip 280 gradually decreases. This allows for easy determination of the position of the first magnet 222 based on the change in its magnetic field.

[0091] It should be understood that the relative arrangement of the first magnet 222 and the first chip 280 can refer to the turntable 220 being in its initial position, i.e., when the deformation of the SMA line 270 is 0 and the turntable 220 is not rotating, and the first magnet 222 and the first chip 280 are arranged relative to each other along a first direction. When there is one first magnet 222, it can be arranged along the first direction on the side of the turntable 220 closer to the first chip 280. When there are two first magnets 222, they can be arranged along the first direction on the side of the turntable 220 closer to the first chip 280 and the side of the turntable 220 further away from the first chip 280, respectively.

[0092] It should be understood that the first chip 280 and the first magnet 222 can also be offset along the first direction, as long as the first chip 280 can sense the magnetic field of the first magnet 222.

[0093] Figure 10 This is a structural schematic diagram of the base 210 in the aforementioned fixture assembly 290, as shown below. Figure 10 As shown, to facilitate the rotation of the turntable 220, a ball groove 2112 can be provided on the base 210, for example, on the base plate 211. A ball 215 can be provided in the ball groove 2112, and the turntable 220 can be supported on the ball 215 and rotate. The ball groove 2112 and the ball 215 can keep the turntable 220 rotating at the same height and make the rotation of the turntable 220 smoother.

[0094] In some embodiments, the number of ball grooves 2112 can be multiple, and the multiple ball grooves 2112 can be arranged around the base 210, and the multiple ball grooves 2112 can be evenly distributed on the base 210 so that the turntable 220 can be stably supported on the balls 215 and is not prone to tilting.

[0095] In some embodiments, each ball groove 2112 may be provided with one ball 215, or multiple balls 215 may be provided, and the multiple balls 215 may be of the same size.

[0096] It should be understood that, in order for the turntable 220 to stably support and rotate on the ball bearings 215, the bottom of the turntable 220 may also be provided with a groove. The ball bearings 215 can be accommodated both in the ball bearing grooves 2112 of the base plate 211 and in the groove at the bottom of the turntable 220. The number of grooves at the bottom of the turntable 220 can be one, and they can be arranged in a ring structure. Alternatively, the number of grooves at the bottom of the turntable 220 can be multiple, and the number can be the same as the number of ball bearing grooves 2112 on the base plate 211. These multiple grooves can be arranged in an arc shape. The groove at the bottom of the turntable 220 can be used to control the movement trajectory of the turntable 220, ensuring the concentricity of the turntable 220's rotation and preventing the turntable 220 from shifting its position during rotation. Alternatively, the bottom of the turntable 220 may not have a groove matching the ball bearings 215, and the bottom of the turntable 220 can directly support the ball bearings 215.

[0097] As described above, the aperture assembly 121 includes an SMA cable 270. One end of the SMA cable 270 is connected to the mounting assembly 290, and the other end is connected to the turntable 220. The rotation of the turntable 220 is driven by the deformation of the SMA cable 270 when energized. In one possible example, the SMA cable 270 can be directly connected to both the mounting assembly 290 and the turntable 220 (not shown in the figure). For example, the SMA cable 270 can be connected to the mounting assembly 290 and the turntable 220 respectively by welding or bonding.

[0098] In another possible example, the SMA line 270 can also be connected to the fixture assembly 290 and the turntable 220 via additional connectors, for example, the SMA line 270 can be connected to the fixture assembly 290 and the turntable 220 via a claw structure.

[0099] For example, the jaw structure may include a first jaw 217 and a second jaw 221. Figure 11 This is a schematic diagram of the structure of the first jaw 217 and the second jaw 221. (See the diagram.) Figure 11 and the above Figures 3 to 6 As shown in the structure, the SMA line 270 can be connected to the fixed component assembly 290 via the first jaw 217, and the SMA line 270 can be connected to the turntable 220 via the second jaw 221. The first jaw 217 can be referred to as the fixed jaw, and the second jaw 221 can be referred to as the movable jaw. The projection of the first jaw 217 along a second direction and the projection of the second jaw 221 along a second direction may not overlap, and the second direction may be the optical axis direction of the aperture assembly 121.

[0100] The projection of the first claw 217 along the second direction does not overlap with the projection of the second claw 221 along the second direction. This means that throughout the entire process of deformation and recovery of the SMA line 270, the projections of the first claw 217 and the second claw 221 along the second direction do not overlap, thereby preventing collisions between the first claw 217 and the second claw 221 when the SMA line 270 contracts. The SMA line 270 is fixedly connected to the fixing assembly 290 and the turntable 220 respectively through the first claw 217 and the second claw 221, making the connection between the SMA line 270 and the fixing assembly 290 and the turntable 220 more stable.

[0101] See also Figure 11 The structure shown includes a first claw 217 that can include a first claw body 2171 and a first connecting portion 2172. The first claw body 2171 can be a plate structure, and its main plane can be parallel to the optical axis of the aperture assembly 121. The main plane of the first claw body 2171 is the surface with the larger planar area. The first connecting portion 2172 can be a boss structure as shown in the figure, disposed on the main plane of the first claw body 2171. The first connecting portion 2172 can be used to fix and connect the SMA cable 270. For example, the first connecting portion 2172 can be provided with an opening 2173, and one end of the SMA cable 270 can be disposed in the opening 2173 and fixedly connected to the opening 2173 by means of welding or other methods, thereby making the SMA cable 270 stably connected to the first claw 217.

[0102] Furthermore, the first claw 217 can be fixedly connected to the base 210 by welding or bonding. For example, the back side of the first claw body 2171 can be welded to the base 210, thereby fixing the first claw 217 to the base 210. The front side of the first claw body 2171 can be the side where the first connecting part 2172 is provided, and the back side of the first claw body 2171 is disposed opposite to the front side.

[0103] Similar to the structure of the first claw 217, the second claw 221 may include a second claw body 2211 and a second connecting portion 2212. The second claw body 2211 may be a plate structure, and its main plane may be parallel to the optical axis of the aperture assembly 121. The main plane of the second claw body 2211 is the surface with the larger planar area. The second connecting portion 2212 may be provided on the main plane of the second claw body 2211 as a boss structure as shown in the figure. The second connecting portion 2212 can be used to fix the SMA cable 270. For example, the second connecting portion 2212 may be provided with an opening 2213, and one end of the SMA cable 270 may be fixed in the opening 2213 of the second connecting portion 2212 by welding or other means, so that the SMA cable 270 is stably connected to the second claw 221. The second claw 221 can be fixedly connected to the turntable 220 by welding or bonding. For example, the back side of the second claw body 2211 can be welded to the turntable 220 to fix the second claw 221 to the turntable 220. The front side of the second claw body 2211 can be the side where the second connecting part 2212 is provided, and the back side of the second claw body 2211 is arranged opposite to the front side.

[0104] It should be noted that, Figure 11 The first connecting portion 2172 and the second connecting portion 2212 shown in (a) are cuboid structures. However, the first connecting portion 2172 and the second connecting portion 2212 can also be other shapes, such as... Figure 11 As shown in (b), the structure of the first connecting portion 2172 and the second connecting portion 2212 can be arc-shaped, or they can be ellipsoidal, irregular, or other structural forms. The first connecting portion 2172 can cover part of the structure of the first claw body 2171 along the z-axis (e.g., Figure 11 (a) in the figure can also cover the entire first jaw body 2171 along the z-axis (e.g., Figure 11 In (b) of the above, the second connecting portion 2212 is similar. The opening 2173 extends through the first connecting portion 2172 along the extension direction of the SMA line 270 (as shown in Figure 2172). Figure 11 In (a) of the figure, the opening 2173 can also penetrate the first connecting part 2172 along the z-axis direction shown in the figure, and the opening 2213 is similar.

[0105] Furthermore, in the illustrated first jaw 217, a first connecting portion 2172 is disposed on the main plane of the first jaw body 2171. This first connecting portion 2172 can also be disposed at the end of the first jaw body 2171. When the first jaw 217 is fixedly connected to the fixing assembly, the connection can be made between the main plane of the first jaw body 2171 and the fixing assembly, or it can be fixedly connected between the end of the first jaw body 2171 and the fixing assembly. When the first connecting portion 2172 is disposed at the end of the first jaw body 2171, it can also be fixedly connected to the fixing assembly 290.

[0106] Similarly, the second connecting portion 2212 of the second claw 221 can be disposed on the main plane of the second claw body 2211 or at the end of the second claw body 2211. When the second claw 221 is fixedly connected to the turntable 220, the main plane of the second claw body 2211 can be fixedly connected to the turntable 220, or the end of the second claw body 2211 can be fixedly connected to the turntable 220. When the second connecting portion 2212 is disposed at the end of the second claw body 2211, the second connecting portion 2212 can also be fixedly connected to the turntable 220.

[0107] Figures 3 to 6 as well as Figure 11 In the structure shown, the principal planes of the first claw 217 and the second claw 221 are parallel to the optical axis of the aperture assembly 121. That is, the principal planes of the first claw body 2171 and the second claw body 2211 are parallel to the optical axis of the aperture assembly 121. In other words, the first claw 217 and the second claw 221 can be vertical claws. See also... Figure 12 In some embodiments of the structure shown, the main planes of the first claw 217 and the second claw 221 may also be perpendicular to the optical axis of the aperture assembly 121. That is, the first claw 217 and the second claw 221 may also be flat claws.

[0108] When the first claw 217 and the second claw 221 are flat claws, the second claw 221 can be fixedly connected to the turntable 220 through the end of the second claw body 2211. Similarly, the first claw 217 can be fixedly connected to the base 210 through the end of the first claw body 2171, or the first claw 217 can also be fixedly connected to the base 210 through the back of the first claw body 2171.

[0109] When the SMA line 270 is connected to the fixing assembly 290 and the turntable 220 via the first claw 217 and the second claw 221, a slot can be made on the fixing assembly 290 at the position corresponding to the first claw 217 and the second claw 221 to accommodate the first claw 217 and the second claw 221, thereby reducing the structural space occupied by the first claw 217 and the second claw 221.

[0110] For example, see [link to previous article] Figure 8 The structure of the fixed component assembly 290 shown is as follows: Figure 8 As shown in (a), when the dimension of the fixed plate 230 along the z-axis is large, the first sidewall 230B of the fixed plate 230 may include a groove 231, which may extend through the first sidewall 230B along a first direction. At least a portion of the structure of the first claw 217 and the second claw 221 may be disposed in the groove 231, and during the rotation of the second claw 221 with the turntable 220, the second claw 221 may rotate in the groove 231, thereby preventing the first sidewall 230B from obstructing the rotation path of the second claw 221.

[0111] for Figure 8 In the structure shown in (b), when the dimension of the base 210 along the z-axis is large, the frame 212 of the base 210 may include a groove 2122, which may extend through the frame 212 in a first direction. At least a portion of the structure of the first claw 217 and the second claw 221 may be disposed in the groove 2122, and during the rotation of the second claw 221 with the turntable 220, the second claw 221 may rotate in the groove 2122, thereby preventing the frame 212 from obstructing the rotation path of the second claw 221.

[0112] In some embodiments, the number of SMA lines 270 can be one, or more than or equal to two. When there are multiple SMA lines 270, they can be arranged symmetrically, and can be simultaneously energized and simultaneously de-energized. When there are more than or equal to two SMA lines 270, the number of first claws 217 and second claws 221 can be the same as the number of SMA lines 270. Accordingly, slots can be provided at corresponding positions of the fixing assembly 290 and the first claws 217 and second claws 221 to accommodate the first claws 217 and second claws 221.

[0113] It should be noted that the aperture assembly 121 shown in the figure includes both the first jaw 217 and the second jaw 221. The aperture assembly 121 may also include only the first jaw 217, or only the second jaw 221. When the aperture assembly 121 includes only the first jaw 217, the SMA cable 270 can be directly connected to the turntable 220. Similarly, when the aperture assembly 121 includes only the second jaw 221, the SMA cable 270 can be directly connected to the mounting assembly 290.

[0114] In some embodiments, the aperture assembly 121 can transmit electrical signals through internal embedded wires to power the SMA line 270, enabling the SMA line 270 to drive the rotation of the turntable 220.

[0115] For turntable 220, the connecting wire can be embedded in the second sidewall 220B of turntable 220. This connecting wire in turntable 220 can be referred to as the second connecting wire 227, and the SMA wire 270 can be electrically connected to the second connecting wire 227. (Continue to see...) Figure 9 The turntable 220 structure shown may include a through hole 224 on the second sidewall 220B. At least a portion of the second connecting line 227 may be disposed in the through hole 224, and the SMA line 270 may be electrically connected to the second connecting line 227 through the through hole 224. Exemplarily, the SMA line 270 may be connected to the second connecting line 227 by soldering through the through hole 224.

[0116] When the SMA line 270 is connected to the turntable 220 via the second claw 221, the material of the second claw 221 can be a metal material, and at least part of the structure of the second claw 221 can cover the surface of the through hole 224. The second claw 221 can be electrically connected to the second connecting line 227 through the through hole 224, thereby making the SMA line 270 electrically connected to the second connecting line 227.

[0117] For the fixture assembly 290, the connecting wire can be embedded in the base 210 or in the mounting plate 230. The connecting wire in the fixture assembly 290 can be called the first connecting wire 218. The SMA wire 270 can also be electrically connected to the first connecting wire 218.

[0118] See also Figure 8 The structure of the fixed component assembly 290 shown is such that when the dimension of the base 210 along the z-axis is small, as... Figure 8As shown in (a), the first connecting wire 218 can be embedded in the mounting plate 230 and in the first sidewall 230B of the mounting plate 230. The first sidewall 230B may include a through hole 232, in which at least a portion of the first connecting wire 218 can be disposed. The SMA wire 270 can be electrically connected to the first connecting wire 218 through the through hole 232. Exemplarily, the SMA wire 270 can be soldered through the through hole 232 to connect to the first connecting wire 218.

[0119] When the SMA line 270 is fixedly connected to the fixing assembly 290 via the first claw 217, the material of the first claw 217 can be a metal material, and at least part of the structure of the first claw 217 can cover the surface of the through hole 232 so that the first claw 217 can be electrically connected to the first connecting line 218.

[0120] When the base 210 includes a base plate 211 and a frame 212, such as Figure 8 As shown in (b), the first connecting wire 218 can be embedded in the base 210, and the first connecting wire 218 can be disposed within the frame of the base 210. The SMA wire 270 can be electrically connected to the first connecting wire 218. Specifically, the base 210 may include a through hole 2123, at least a portion of the first connecting wire 218 can be disposed in the through hole 2123, and the SMA wire 270 can be electrically connected to the first connecting wire 218 through the through hole 2123.

[0121] When the SMA line 270 is fixedly connected by the first claw 217 fixing assembly, the material of the first claw 217 can be a metal material, and at least part of the structure of the first claw 217 can cover the surface of the through hole 2123 so that the first claw 217 is electrically connected to the first connecting line 218.

[0122] Connecting wires are installed inside the base 210 and turntable 220 to conduct the circuit of SMA line 270, enabling SMA line 270 to work normally. This simplifies the structure of aperture assembly 121 and reduces its size. The connecting wires installed inside the base 210 and turntable 220 also improve the structural strength of the base 210 and turntable 220.

[0123] See also Figure 6The exploded structural diagram shown indicates that the aperture assembly 121 may further include a first connector 226. The first connector 226 may be made of metal. One end of the first connector 226 can be electrically connected to the turntable 220, and the other end can be electrically connected to the fixing assembly 290. That is, one end of the first connector 226 can be electrically connected to the second connecting line 227 in the turntable 220, and the other end can be electrically connected to the first connecting line 218 in the fixing assembly 290. Thus, the first connecting line 218, the SMA line 270, the second connecting line 227, and the first connector 226 can form an electrical circuit, enabling the SMA line 270 to function normally.

[0124] Similar to the electrical connection method of the SMA line 270, the first connecting line 218, and the second connecting line 227 described above, the first connecting member 226 can pass through the through hole on the turntable 220 and be electrically connected to the second connecting line 227 by welding. The first connecting member 226 can also pass through the through hole on the fixed component assembly 290 and be electrically connected to the first connecting line 218 by welding.

[0125] It should be noted that the end of the first connector 226 connected to the fixing component 290 can be connected to the base 210 or to the fixing plate 230.

[0126] The number of first connectors 226 can be one or more. The number of first connectors 226 can be the same as the number of SMA lines 270. One SMA line 270, one first connector 226, and the first connecting line 218 and the second connecting line 227 together form a loop to realize the normal operation of the SMA line 270.

[0127] When the SMA line 270 is connected to the fixed component assembly 290 and the turntable 220 via the first claw 217 and the second claw 221 respectively, the first claw 217 and the second claw 221 can together with the SMA line 270, the first connecting line 218, the second connecting line 227 and the first connector 226 to form an electrical circuit.

[0128] In some embodiments, the first connector 226 may be an elastic connector, such as a spring, and the first connector 226 may deform under force.

[0129] When the SMA line 270 is energized, the turntable 220 rotates counterclockwise and can pull the first connector 226, causing the first connector 226 to be in a stretched state. When the SMA line 270 is de-energized, the tension from the SMA line 270 on the turntable 220 is removed. Correspondingly, the tension from the turntable 220 on the first connector 226 is removed, and the first connector 226 can recover its deformation. Thus, the turntable 220 receives the tension from the first connector 226 and rotates clockwise, causing the turntable 220 to return to its initial position.

[0130] See also Figure 6 or Figure 7 In some embodiments of the structure shown, the aperture assembly 121 may further include a first circuit board 281 electrically connected to the first chip 280 for providing electrical signals to the first chip 280. Exemplarily, the first chip 280 may be attached to the surface of the first circuit board 281 and electrically connected to it.

[0131] See also Figure 8 In the structure shown, when the mounting plate 230 includes a first sidewall 230B and the first sidewall 230B includes a groove 233, the first chip 280 can be disposed in the groove 233, and at least a portion of the structure of the first circuit board 281 can be disposed in the groove 233 together with the first chip 280, and the first circuit board 281 can be fixedly connected to the mounting plate 230. When the first connecting line 218 is disposed in the mounting plate 230, the first circuit board 281 can also be electrically connected to the first connecting line 218 in the mounting plate 230.

[0132] When the base 210 includes a frame 212, and the frame 212 includes a groove 2124, the first chip 280 is disposed in the groove 2124. At least a portion of the structure of the first circuit board 281 can be disposed in the groove 2124 together with the first chip 280, and the first circuit board 281 can be fixedly connected to the base 210. When the first connecting line 218 is disposed within the frame 212 of the base 210, the first circuit board 281 can also be electrically connected to the first connecting line 218 within the base 210.

[0133] Similarly, the first circuit board 281 can also be electrically connected to the second connection line 227 in the turntable 220.

[0134] The first circuit board 281 can be a flexible printed circuit (FPC), and the other end of the first circuit board 281 can be connected to... Figure 2 The lens assembly 122, drive assembly 123, etc. in the camera module shown are electrically connected.

[0135] It should be noted that in the above embodiments, the first circuit board 281 is a fixedly installed circuit board. The first circuit board 281 can also be a movable circuit board; that is, the first circuit board 281 may not be fixedly connected to the base 210 or the mounting plate 230, but only needs to be electrically connected to the first connecting line 218. Alternatively, the aperture assembly may not include the first circuit board 281. The first chip 280 can be electrically connected to the first connecting line 218 and the second connecting line 227 via connecting lines. Furthermore, the first connecting line 218 and the second connecting line 227 can be electrically connected to the lens assembly 122, the drive assembly 123, etc. of the camera module via connecting tabs or soldering. This application does not limit the specific electrical connection method.

[0136] See also Figure 6 and Figure 7 In some embodiments of the structure shown, the aperture assembly 121 may further include a first magnetic absorbing piece 213, which may be disposed on the fixing assembly and may be disposed opposite to the first magnet 222 along a first direction. The magnetic absorbing assembly formed by the first magnet 222 and the first magnetic absorbing piece 213 may also be referred to as a lateral magnetic absorbing assembly.

[0137] It should be understood that the first magnet 222 and the first magnetic attracting piece 213 being arranged opposite each other along the first direction means that when the turntable 220 is in the initial position, the first magnet 222 and the first magnetic attracting piece 213 are arranged opposite each other along the first direction.

[0138] Similar to the placement of the first chip 280, when the base 210 includes a frame 212 and the frame 212 includes a groove 2124, the first magnetic piece 213 can be placed in the groove 2124.

[0139] When the mounting plate 230 includes a first sidewall 230B, and the first sidewall 230B includes a groove 233, the first magnetic piece 213 can be disposed in the groove 233.

[0140] In some embodiments, the number of the first magnet 222 and the first magnetic absorbing piece 213 may be the same, together forming one or more pairs of lateral magnetic absorbing components. In this example, the magnet in the lateral magnetic absorbing component may be the same magnet used in the position monitoring scheme described above. The first magnetic absorbing piece 213 and the first chip 280 may be jointly disposed in the groove 2124 or jointly disposed in the groove 233.

[0141] It should be noted that, Figure 6 and Figure 7In this example, only the first magnet 222 located on the right side forms a lateral magnetic attraction assembly with the first magnetic absorbing piece 213. The first magnet 222 located on the left side does not have a first magnetic absorbing piece 213 to cooperate with it. In fact, the first magnet 222 located on the left side can also form a lateral magnetic attraction assembly with the first magnetic absorbing piece 213. In this example, the first magnetic absorbing piece 213 can be housed together with the first chip 280 and the first circuit board 281 in the slot 233.

[0142] Furthermore, the magnet cooperating with the first magnetic attracting piece 213 can be a different magnet from the magnet used in the aforementioned position monitoring scheme. The magnet cooperating with the first magnetic attracting piece 213 can be located at a position other than that of the magnet used in the aforementioned position monitoring scheme. For example, the second sidewall 220B can also include other grooves (not shown in the figure) besides the groove 2124, and the magnet in the lateral magnetic attracting assembly can be located in one of these grooves. Correspondingly, the first magnetic attracting piece 213 can be located at a relative position along the first direction of the groove. When the lateral magnetic attracting assembly and the position monitoring scheme do not share a magnet, the magnet and the magnetic attracting piece in the lateral magnetic attracting assembly can also interchange positions. That is, the magnet in the lateral magnetic attracting assembly can be located on the fixed component assembly, while the first magnetic attracting piece 213 can be located on the second sidewall 220B of the turntable 220.

[0143] The number of first magnetic locating pieces 213 can also differ from the number of first magnets 222. For example, the position monitoring scheme includes one magnet, while the lateral magnetic locating assembly includes two magnets. Alternatively, the position monitoring scheme includes two magnets, while the lateral magnetic locating assembly includes one magnet. In this example, the position monitoring scheme and the lateral magnetic locating assembly can share a single magnet.

[0144] Figure 6 The first magnetic attractor 213 shown is an arc-shaped structure, and this arc-shaped first magnetic attractor 213 can be arranged along the circumferential direction of the base 210 or the fixed plate 230. That is to say, the extension direction (the direction of the long side) of the first magnetic attractor 213 is parallel to the xy plane shown in the figure. The first magnetic attractor 213 can also be arranged vertically, such as... Figure 13 In the structure shown, the extension direction of the first magnetic absorbing piece 213 can be parallel to the z-axis direction shown in the figure. When the first magnetic absorbing piece 213 is vertically arranged, the groove for accommodating the first magnetic absorbing piece 213 can be provided on the frame 212 or on the first sidewall 230B. Alternatively, the groove can extend from the first sidewall 230B to the frame 212. That is, both the first sidewall 230B and the frame 212 can be provided with grooves, and the projections of the grooves along the z-axis direction can overlap each other, so the first magnetic absorbing piece 213 can be simultaneously accommodated in the grooves of the first sidewall 230B and the frame 212.

[0145] The first magnetic attracting piece 213 can be an arc-shaped structure, or a cuboid, ellipsoid, or other structures. This application does not limit the structure and arrangement of the first magnetic attracting piece 213, as long as the first magnetic attracting piece 213 can attract the first magnet 222.

[0146] Similarly, the first magnet 222 can be an arc-shaped structure as shown in the figure, or a cuboid structure, a ring structure, or other shapes such as irregular shapes. This application does not limit the shape of the first magnet 222.

[0147] also, Figure 6 and Figure 7 In the structure shown, one first magnet 222 and one first magnetic attracting piece 213 cooperate with each other, and one first magnet 222 can also cooperate with two first magnetic attracting pieces 213, such as... Figure 14 The structure is shown. When there are two first magnetic pieces 213, the first magnet 222 can be disposed opposite to one of the first magnetic pieces 213, or the first magnet 222 can be disposed opposite to the overall structure formed by the two first magnetic pieces 213. The number of first magnetic pieces 213 can also be greater than two, and this application does not limit the number of first magnetic pieces 213.

[0148] In the embodiments provided in this application, the aperture assembly 121 includes a first magnetic absorbing piece 213. The first magnetic absorbing piece 213 and the first magnet 222 are disposed opposite each other along a first direction, providing magnetic attraction in the first direction. When the turntable 220 is not rotating, or during the rotation of the turntable 220, the turntable 220 and the base 210 can attract each other radially, making it less likely for the position of the turntable 220 to shift forward, backward, left, or right. The turntable 220 can always be supported on the ball bearing 215, improving the concentricity of the position of the turntable 220. In addition, by sharing the magnet with the position monitoring scheme to achieve lateral magnetic attraction, the structure of the aperture assembly 121 can be simplified and the volume of the aperture assembly 121 can be reduced.

[0149] See also Figure 6 or Figure 7 In some embodiments of the structure shown, the aperture assembly 121 may further include a second magnetic absorbing piece 214. The second magnetic absorbing piece 214 may be disposed on the fixing assembly and may be disposed opposite to the first magnet 222 along a second direction. The second direction may be the optical axis direction of the aperture assembly 121, that is, the z-axis direction shown in the figure. The magnetic absorbing assembly formed by the first magnet 222 and the second magnetic absorbing piece 214 may be called a bottom magnetic absorbing assembly.

[0150] For example, such as Figure 7 The structure marked by the middle circle ( Figure 7The image below is an enlarged view of the structure circled in the diagram. The second magnetic piece 214 can be disposed on the base plate 211 of the base 210, and the second magnetic piece 214 can be disposed on the side of the base plate 211 near the turntable 220. The side of the base plate 211 near the turntable 220 can be provided with a groove 2125, and the second magnetic piece 214 can be disposed in the groove 2125.

[0151] It should be understood that the groove 2125 can also be disposed on the side of the base plate 211 away from the turntable 220, that is, the second magnetic chuck 214 can be disposed on the side of the base plate 211 away from the turntable 220. When the second magnetic chuck 214 is disposed in the groove 2125, the outer end face of the second magnetic chuck 214 can be parallel to the outer end face of the base plate 211, or it can be lower or higher than the outer end face of the base plate 211. The fact that the first magnet 222 and the second magnetic chuck 214 are disposed opposite each other along the second direction means that when the turntable 220 is in the initial position, the first magnet 222 and the second magnetic chuck 214 are disposed opposite each other along the second direction.

[0152] In some embodiments, the number of bottom magnetic assemblies can be one pair, two pairs, or more pairs. Similar to the lateral magnetic assemblies described above, when the number of magnets in the bottom magnetic assemblies is the same as the number of magnets in the position detection scheme, the magnets in the bottom magnetic assemblies and the magnets in the position detection scheme can be the same magnet or different magnets.

[0153] For example, the frame 212 may also include other grooves besides the groove 2124. The magnet in the bottom magnetic attraction assembly can be disposed in the groove, and correspondingly, the second magnetic piece 214 can be disposed at a relative position in the groove along the second direction. When the bottom magnetic attraction assembly and the position monitoring scheme do not share magnets, the magnet and the magnetic piece in the bottom magnetic attraction assembly can be interchanged. That is, the magnet in the bottom magnetic attraction assembly can be disposed on the base 210, while the second magnetic piece 214 can be disposed on the second sidewall 220B of the turntable 220. When there are multiple magnets in both the bottom magnetic attraction assembly and the position monitoring scheme, some magnets can be shared, all magnets can be shared, or none of them can be shared. When the lateral magnetic attraction assembly and the bottom magnetic attraction assembly do not share magnets with the position monitoring scheme, the lateral magnetic attraction assembly and the bottom magnetic attraction assembly can also share magnets.

[0154] Similar to the first magnetic absorbing piece 213 described above, the second magnetic absorbing piece 214 has an arc-shaped structure, or it can be a cuboid structure, or it can be other irregular shapes. One first magnet 222 can cooperate with one second magnetic absorbing piece 214, or one first magnet 222 can cooperate with two or more second magnetic absorbing pieces 214.

[0155] In the embodiments provided in this application, the first magnet 222 and the second magnetic absorbing piece 214 are arranged opposite each other in the second direction, so that the first magnet 222 and the second magnetic absorbing piece 214 have magnetic attraction in the second direction. After the SMA line 270 is de-energized, the turntable 220 can overcome the restoring force of the SMA line 270 and the static friction of the turntable 220 through the magnetic attraction, thereby achieving self-locking of the aperture assembly. That is, the position of the turntable 220 relative to the base 210 is not easily changed, thereby reducing the power consumption of the aperture assembly after power failure. Furthermore, when the aperture assembly is in motion, for example, in a scenario where the user is holding the electronic device, the shaking of the turntable can be reduced, thus reducing the power consumption of the aperture assembly.

[0156] The aperture assembly described in the above embodiments has a fixed disk 230 disposed on the outer periphery of the turntable 220, such as... Figure 5 As shown in the structure, the fixed post is located outside the rotating post, and correspondingly, the second mounting hole 241 on the blade 240 is located outside the third mounting hole 242. When the turntable 220 rotates counterclockwise, the multiple blades 240 rotate towards the axis, and the size of the aperture hole decreases. This rotating structure can be called an inner rotating structure. In the solution provided in the embodiments of this application, the turntable 220 can also be set on the outer periphery of the fixed plate 230, that is, the rotating post is located outside the fixed post, and correspondingly, the third mounting hole 242 of the blade 240 is located outside the second mounting hole 241, as shown. Figure 15 As shown. That is to say, the distance between the third mounting hole 242 and the axis of the aperture assembly is greater than the distance between the second mounting hole 241 and the axis of the aperture assembly.

[0157] When the turntable 220 is located on the outer periphery of the fixed plate 230, the ball groove 2112 of the base 210 can be located on the outer side of the frame 212. Correspondingly, the turntable 220 can also be located on the outer side of the frame 212 and can be supported on the ball 215.

[0158] When the turntable 220 is positioned on the outer periphery of the fixed plate 230, the first claw 217 can be positioned on the outer side of the fixed plate 230 or the base 210, that is, on the side of the fixed plate 230 or the base 210 closest to the turntable 220. Accordingly, a groove can be provided on the turntable 220 to accommodate the second claw 221 and the first claw 217.

[0159] See Figure 16 The structure shown, in some embodiments, the aperture assembly may further include a light-shielding plate 260 (soma). The above... Figures 3 to 15 The light-shielding plate 260 structure is not shown in the described aperture assembly. The light-shielding plate 260 can be disposed on the side of the fixed plate 230 and the turntable 220 away from the base 210, and can be disposed on the side of the blade 240 away from the cover plate 250.

[0160] The light-shielding plate 260 can be connected to the fixed plate 230. For example, the side of the fixed plate 230 away from the base 210 may include a fixing post. Accordingly, the light-shielding plate 260 may include a mounting hole 261, and the fixing post may be fitted into the mounting hole 261 so that the light-shielding plate 260 is connected to the fixed plate 230.

[0161] To simplify the structure of the aperture assembly 121, the light shield 260 and the blade 240 can be connected to the same fixing post, that is, the mounting hole 261 can be connected to the second connecting post 234 mentioned above.

[0162] In some embodiments, the light-shielding plate 260 can be an annular structure, forming a light-passing hole 262. This light-passing hole 262 can serve as the maximum aperture that the aperture assembly can achieve, used to control the amount of light entering the aperture. For example, when the blade 240 rotates away from the axis, the aperture formed by the blade 240 gradually increases in diameter. When the diameter of the formed aperture is greater than the diameter of the light-passing hole 262, the amount of light entering the aperture assembly is the amount of light that can pass through the light-passing hole 262.

[0163] In some embodiments, the cover plate 250 provided in this application can be a metal part, or the cover plate 250 can also be a non-metal part, such as an injection molded part.

[0164] In some embodiments, the surface of the cover plate 250 may be blackened to improve the aesthetics of the electronic device, making it difficult for users to directly observe the aperture assembly 121 from the appearance of the electronic device.

[0165] This application embodiment also provides a camera module, which may include... Figures 3 to 16 The aperture assembly 121 described.

[0166] This application also provides an electronic device that may include the aforementioned camera module. The electronic device may be a mobile phone, tablet, laptop, wearable device, or other product with a shooting function.

[0167] It should be noted that in the embodiments of this application, "same" does not mean absolute sameness. Those skilled in the art will understand that, since they can make appropriate adjustments to the dimensions of structural components according to design needs, the "same" dimensions of two structural components are allowed to have a certain range of deviation, such as a difference of 0.1mm-0.5mm. Similarly, mutual parallelism or perpendicularity at angles does not mean absolute parallelism or perpendicularity, and mutual flushness of planes does not mean absolute flushness; structural deviations are allowed.

[0168] 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. An aperture assembly, comprising: The aperture assembly comprises: a fixed component (290); a rotating disc (220) rotatably connected to the fixed component (290); a plurality of blades (240) disposed on the same side of the fixed component (290) and the rotating disc (220) along the optical axis direction of the aperture assembly, the plurality of blades (240) enclose an aperture hole, the plurality of blades (240) are rotatably connected to the fixed component (290) and slidably connected to the rotating disc (220); a shape memory alloy (SMA) wire (270), one end of the SMA wire (270) is connected to the fixed component (290), the other end of the SMA wire (270) is connected to the rotating disc (220), and the SMA wire (270) is used to deform when energized to drive the rotating disc (220) to rotate relative to the fixed component (290), and drive the plurality of blades (240) to rotate relative to the fixed component (290) and slide relative to the rotating disc (220) to change the size of the aperture hole; a first chip (280) and a first magnet (222), the first chip (280) is disposed on the fixed component (290), the first magnet (222) is disposed on the rotating disc (220), and the first chip (280) is located in the magnetic field of the first magnet (222), the first chip (280) is used to determine the position of the first magnet (222) according to the magnetic field of the first magnet (222) to make the aperture hole meet the target aperture.

2. The aperture assembly of claim 1, wherein, The first chip (280) and the first magnet (222) are oppositely disposed along a first direction, and the first direction is a radial direction of the aperture assembly.

3. The aperture assembly of claim 1 or 2, wherein, The aperture assembly further comprises a first magnetic attraction piece (213), the first magnetic attraction piece (213) is disposed on the fixed component (290), and the first magnetic attraction piece (213) is oppositely disposed with the first magnet (222) along a first direction, and the first direction is a radial direction of the aperture assembly.

4. The aperture assembly of any one of claims 1-3, wherein, The aperture assembly further comprises a second magnetic attraction piece (214), the second magnetic attraction piece (214) is disposed on the fixed component (290), and the second magnetic attraction piece (214) is oppositely disposed with the first magnet (222) along a second direction, and the second direction is an optical axis direction of the aperture assembly.

5. The aperture assembly of any one of claims 1 to 4, wherein, The aperture assembly further comprises a first claw (217), the first claw (217) is connected with the fixed component (290), and one end of the SMA wire (270) is connected with the first claw (217); and / or, The aperture assembly further comprises a second claw (221), the second claw (221) is connected with the rotating disc (220), the other end of the SMA wire (270) is connected with the second claw (221), the projection of the first claw (217) along a second direction does not overlap with the second claw (221), and the second direction is an optical axis direction of the aperture assembly.

6. The aperture assembly of claim 5, wherein, The first claw (217) comprises a first claw body (2171) and a first connecting portion (2172), the first connecting portion (2172) is arranged on the main plane of the first claw body (2171), the first claw body (2171) is used for connecting with the fixed component assembly (290), and the first connecting portion (2172) is used for connecting with the SMA wire (270); and / or, The second claw (221) comprises a second claw body (2211) and a second connecting portion (2212), the second connecting portion (2212) is arranged on the main plane of the second claw body (2211), the second claw body (2211) is used for connecting with the rotating disc (220), and the second connecting portion (2212) is used for connecting with the SMA wire (270).

7. The aperture assembly of claim 6, wherein, The main plane of the first claw body (2171) is perpendicular to the optical axis direction of the aperture assembly; and / or, The main plane of the second claw body (2211) is perpendicular to the optical axis direction of the aperture assembly.

8. The aperture assembly of any one of claims 5-7, wherein, The material of the first claw (217) is metal material, the first connecting wire (218) is arranged in the fixed component assembly (290), and the first claw (217) is electrically connected with the first connecting wire (218); and / or, The material of the second claw (221) is metal material, the second connecting wire (227) is arranged in the rotating disc (220), and the second claw (221) is electrically connected with the second connecting wire (227).

9. The aperture assembly of claim 8, wherein, The aperture assembly further comprises a first connecting piece (226), one end of the first connecting piece (226) is electrically connected with the first connecting wire (218), and the other end of the first connecting piece (226) is electrically connected with the second connecting wire (227).

10. The aperture assembly of claim 9, wherein, The first connecting piece (226) is an elastic connecting piece, and in the case that the SMA wire (270) is in the energized state, the first connecting piece (226) is in the stretched state.

11. The aperture assembly of any one of claims 1-10, wherein, The aperture assembly further comprises a first circuit board (281), at least part of the first circuit board (281) is arranged on the fixed component assembly (290), and the first chip (280) is electrically connected with the first circuit board (281).

12. The aperture assembly of any one of claims 1-11, wherein, The number of the SMA wire (270) is greater than or equal to two.

13. The aperture assembly of any one of claims 1-12, wherein, The fixed component assembly (290) comprises a base (210), and the base (210) comprises a ball groove (2112). The aperture assembly further comprises a ball (215), the ball (215) is accommodated in the ball groove (2112), and the rotating disc (220) is carried on the ball (215).

14. A camera module, comprising: The camera module comprises a lens and an aperture assembly as claimed in any one of claims 1 to 13, the aperture assembly is arranged at the front end of the lens, and the aperture hole of the aperture assembly is used for guiding light into the lens.

15. An electronic device, comprising: The camera module comprises the camera module as claimed in claim 14 and a housing for accommodating the camera module.

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