Variable aperture and electronic device

Abstract

A variable aperture (301) and electronic equipment relate to the technical field of terminal equipment. The variable aperture (301) comprises a base (3a), a rotating ring (2) and a plurality of blades (1); the rotating ring (2) is rotationally connected to the base (3a); the plurality of blades (1) are located on the side of the rotating ring (2) away from the base (3a), the plurality of blades (1) are annularly distributed and jointly enclose an aperture hole (4), the end of the blade (1) is used for controlling the aperture size of the aperture hole (4), each blade (1) is rotationally connected to the base (3a) and is slidingly connected to the rotating ring (2); the position at which the blade (1) is rotationally connected to the base (3a) is a rotation fulcrum of the blade (1), the position at which the blade (1) is slidingly connected to the rotating ring (2) is a driving position of the blade (1), and the rotation fulcrum is located between the driving position and the aperture hole (4). Compared with the driving position being arranged between the rotation fulcrum and the aperture hole (4), when there is an error in the actual movement displacement of the rotating ring (2), the linear displacement amplification error of the end of the blade (1) is reduced, so that the aperture coefficient F is improved.

Description

[0001] This application claims priority to Chinese patent application filed on May 30, 2022, with application number 202210614782.2 and entitled "A Variable Aperture and an Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of terminal equipment technology, and in particular to a variable aperture and electronic device. Background Technology

[0003] Electronic devices, such as mobile phones, can perform photography by setting up camera modules. To achieve photographic results close to those of a DSLR camera, the amount of light entering the camera module needs to be adjusted according to the shooting environment. Equipping the camera module's shutter with a variable aperture can be one way to adjust the amount of light entering the camera.

[0004] Figure 1a A schematic diagram of an existing variable aperture is shown. Figure 1a As shown, the variable aperture includes a base 3a, a rotating ring 2, and multiple blades 1. Combined together... Figure 1a and Figure 1b Multiple blades 1 are arranged in a ring so that the tails 13 of the multiple blades 1 together form an aperture 4 through which light passes. In addition, the rotating ring 2 can rotate relative to the base 3a.

[0005] Continue reading Figure 1a The blade 1 has a guide hole 11, and the rotating ring 2 has a second fixing post 21 that inserts into the guide hole 11, allowing the blade 1 to slide relative to the rotating ring 2. Additionally, the blade 1 has a rotating hole 12, and the base 3a has a first fixing post 31 that inserts into the rotating hole 12. Therefore, when the rotating ring 2 rotates relative to the base 3a, the blade 1 can rotate relative to the rotating hole 12 with the first fixing post 31 as its fulcrum, guided by the second fixing post 21, thus achieving rotation of the blade 1 relative to the base 3a.

[0006] However, as Figure 1b As shown, when the actual displacement of the second fixed column 21 differs from the preset displacement by 0.1 mm, the actual linear displacement of the tail 13 of the blade 1, which controls the aperture size of the aperture 4, differs from the preset linear displacement even more, for example, by more than 0.5 mm. This results in an excessively large error in the aperture size of the aperture 4, leading to low accuracy of the aperture coefficient F.

[0007] Therefore, improving the accuracy of the aperture coefficient F has become an urgent problem to be solved. Summary of the Invention

[0008] This application provides a variable aperture and an electronic device to solve the problem of low accuracy of the aperture coefficient F.

[0009] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0010] In a first aspect, embodiments of this application provide a variable aperture, which includes: a base, a rotating ring, and multiple blades; the base has a through hole; the rotating ring is rotatably connected to the base; the multiple blades are located on the side of the rotating ring away from the base, the multiple blades are arranged in a ring and together surround the aperture hole, the aperture hole is opposite to the through hole, each blade is rotatably connected to the base and slidably connected to the rotating ring; the position where the blade is rotatably connected to the base is located between the position where the blade is slidably connected to the rotating ring and the aperture hole.

[0011] Based on the above description of the variable aperture structure given in the embodiments of this application, it can be seen that the variable aperture is an aperture with a variable aperture diameter. Furthermore, when the blade rotates relative to the base under the drive of the rotating ring, the position on the blade that is rotatably connected to the base is the pivot point of the blade's rotation, and the position on the blade that is slidably connected to the rotating ring is the driving position of the blade's rotation. The position on the blade that is rotatably connected to the base is closer to the aperture than the position on the blade that is slidably connected to the rotating ring, so that the pivot point is located between the driving position and the aperture. Compared to setting the driving position between the pivot point and the aperture, in this embodiment of the application, the ratio (L / M) between the distance L between the pivot point and the aperture and the distance between the pivot point and the driving position is smaller. Thus, when there is an error in the actual displacement of the rotating ring, the proportion by which the linear displacement of the end of the blade used to control the aperture size amplifies this error is reduced, thereby improving the accuracy of the aperture coefficient F. For example, when the actual displacement of the rotating ring differs from the preset displacement by 0.1 mm, the actual linear displacement of the end of the blade used to control the aperture size of the aperture differs from the preset linear displacement by 0.2 mm.

[0012] In the feasible implementation of the first aspect, a rotating hole is provided on the blade, and a first fixed post is provided on the base. The blade passes through the rotating hole and is mounted on the first fixed post, and can rotate around the first fixed post so that the blade and the base are rotatably connected.

[0013] In the feasible implementation of the first aspect, a rotating hole is provided on the base, and a first fixing post is provided on the blade. The blade is inserted into the rotating hole through the first fixing post and can rotate with the first fixing post as the fulcrum, so that the blade is rotatably connected to the base.

[0014] In the feasible implementation of the first aspect, a guide hole is provided on the blade, and a second fixed post is provided on the rotating ring. The blade passes through the guide hole and is mounted on the second fixed post, and can slide relative to the second fixed post, so that the blade and the rotating ring are slidably connected.

[0015] In the feasible implementation of the first aspect, a second fixing post is provided on the blade, and a guide hole is provided on the rotating ring. The blade is inserted into the guide hole through the second fixing post, and the second fixing post can move in the guide hole so that the blade and the rotating ring are slidably connected.

[0016] In the feasible implementation of the first aspect, the guide hole is a strip-shaped hole.

[0017] The strip-shaped hole provides space for the sliding of the second fixed column, enabling relative sliding of the blades relative to the rotating ring; in addition, the strip-shaped hole structure is simple and suitable for mass production; and it is easy to control the machining accuracy, thereby enabling control over the accuracy of the aperture hole change in the variable aperture.

[0018] In the feasible implementation of the first aspect, during the process of multiple blades rotating relative to the base and sliding relative to the rotating ring, the larger the aperture of the aperture hole, the smaller the angle between the axis of the guide hole along its own length direction and the first straight line; wherein, the first straight line is the line connecting the center of the aperture hole and the center of the first fixed post.

[0019] This design of the guide hole ensures that the rotation direction of the blade is consistent with the rotation direction of the rotating ring, which is beneficial to the rotation of the blade itself when adjusting the aperture diameter.

[0020] In the feasible implementation of the first aspect, the number of multiple blades is six, arranged in two layers along the axial direction of the rotating ring, with three blades in each layer. The three blades in the upper layer are evenly distributed along the circumference of the rotating ring, and the three blades in the lower layer are also evenly distributed along the circumference of the rotating ring. The orthographic projections of the three blades in the upper and lower layers onto the rotating ring are evenly spaced along the circumference of the rotating ring.

[0021] In the feasible implementation of the first aspect, the variable aperture also includes a spacer disposed between multiple blades and the base. The spacer serves to block light and reduce friction between the blades and the base, thus protecting the blades and the base.

[0022] In a feasible implementation of the first aspect, the variable aperture further includes a drive structure; the drive structure is connected between the rotating ring and the base, and the drive structure is used to drive the rotating ring to rotate relative to the base, so as to drive multiple blades to rotate relative to the base and multiple blades to slide relative to the rotating ring.

[0023] In a feasible implementation of the first aspect, the drive structure includes: at least one magnet and at least one coil; the rotating ring has opposing first and second surfaces along the axial direction of the rotating ring; at least one coil is fixed to the first surface; the magnet is disposed opposite to the coil, and the magnet is located on the side of the coil away from the first surface.

[0024] In this way, the coil and magnet are positioned vertically along the axis of the rotating ring. When the coil is energized, a Lorentz force is generated tangentially to the rotating ring. Since the coil is fixed to the rotating ring, this tangential Lorentz force causes the coil to rotate the ring. By fixing the coil to the mover (i.e., the rotating ring), the magnet can be fixed to the base in a relatively stationary manner. Because the magnet is relatively stationary, its volume and weight can be appropriately increased to enhance its magnetic field strength. This allows the rotating ring to rotate even with a small current flowing through the coil, thereby reducing the power consumption of the variable aperture.

[0025] In addition, the coil is lighter than the magnet, so the thrust required when the coil rotates with the rotating ring is also smaller. This allows for a reduction in the number of magnets and coils, thereby reducing the weight of the variable aperture mover.

[0026] In the feasible implementation of the first aspect, the magnet has a strip-shaped structure. Compared with a ring-shaped magnet, the gap between the magnet and the coil is smaller in a strip-shaped magnet, resulting in a stronger magnetic field. This helps to further reduce the current in the coil when the rotating ring rotates, thereby reducing the power consumption of the variable aperture.

[0027] In the feasible implementation of the first aspect, a magnetic sheet is provided on the side of the magnet away from the coil. The magnetic sheet is used to increase the magnetic field strength, which helps to further reduce the current of the coil when the rotating ring rotates, thereby reducing the power consumption of the variable aperture.

[0028] In a feasible implementation of the first aspect, at least one coil includes a first coil and a second coil, and at least one magnet includes a first magnet and a second magnet; the first coil and the second coil are arranged at circumferential intervals along the rotating ring; the first magnet is opposite to the first coil, and the second magnet is opposite to the second coil.

[0029] In a feasible implementation of the first aspect, the rotating ring includes an annular body portion and a boss formed on the outer annular surface of the body portion, with a cavity formed on the side of the boss facing the base, and the coil disposed in the cavity.

[0030] By placing the coil inside the cavity, space can be effectively utilized, making the variable aperture structure compact.

[0031] In a feasible implementation of the first aspect, the variable aperture further includes an electrical connection structure; the electrical connection structure includes a first part, a second part, and a flexible connection part, the first part and the second part being connected through the flexible connection part; the first part is electrically connected to at least one coil, and the first part is rotatable with the rotating ring; the second part is used for electrical connection with external devices of the variable aperture.

[0032] By setting the electrical connection structure as a first part and a second part, the electrical connection structure can be set in a more flexible way. For example, the electrical connection structure can be set in the gap structure of the variable aperture, making the structure of the variable aperture compact. In addition, the first part and the second part are connected by a flexible connection part, so that when the first part rotates with the rotation of the coil, the relative displacement between the first part and the second part is canceled by the flexible connection part, so that the second part is stationary relative to the base.

[0033] In a feasible implementation of the first aspect, both the first part and the second part are ring-shaped structures; the axes of the first part and the second part are parallel to the axis of the rotating ring; the first part is located on the side of the coil away from the magnet and is electrically connected to the coil; the second part is located on the side of the magnet away from the coil.

[0034] In a feasible implementation of the first aspect, the outer annular surface of the second part is further formed with at least one connection terminal for electrical connection with an external device of the variable aperture.

[0035] In a feasible implementation of the first aspect, the base includes: a main body and a protrusion; the bottom of the protrusion is fixed to the main body, and a through hole passes through the protrusion and the main body; a rotating ring is sleeved on the outer periphery of the protrusion and is rotatably connected to the protrusion and / or the main body through a rotating structure.

[0036] In the feasible implementation of the first aspect, the rotating structure includes: a limiting groove and a guide post inserted into the limiting groove, wherein the extending direction of the limiting groove is consistent with the circumferential direction of the rotating ring; one of the limiting groove and the guide post is disposed on the rotating ring, and the other is disposed on the main body.

[0037] Secondly, embodiments of this application provide an electronic device, which includes an optical lens, a camera module, and a computing control unit; the camera module includes a variable aperture; the variable aperture includes a base, a rotating ring, and multiple blades; the base has a through hole; the optical lens is disposed in the through hole of the base, and the variable aperture is located on the light-incident side of the optical lens; the rotating ring is rotatably connected to the base; multiple blades are located on the side of the rotating ring away from the base, the multiple blades are arranged in a ring and together surround the aperture hole, the aperture hole is opposite to the through hole, each blade is rotatably connected to the base and slidably connected to the rotating ring; the position where the blade is rotatably connected to the base is located between the position where the blade is slidably connected to the rotating ring and the aperture hole; the computing control unit is electrically connected to the camera module.

[0038] In the second feasible implementation, a rotating hole is provided on the blade, and a first fixed post is provided on the base. The blade passes through the rotating hole and is mounted on the first fixed post, and can rotate around the first fixed post so that the blade is rotatably connected to the base.

[0039] In the second feasible implementation, a rotating hole is provided on the base, and a first fixing post is provided on the blade. The blade is inserted into the rotating hole through the first fixing post and can rotate with the first fixing post as the fulcrum, so that the blade is rotatably connected to the base.

[0040] In the second feasible implementation, a guide hole is provided on the blade, and a second fixed post is provided on the rotating ring. The blade passes through the guide hole and is mounted on the second fixed post, and can slide relative to the second fixed post, so that the blade and the rotating ring are slidably connected.

[0041] In the second feasible implementation, a second fixing post is provided on the blade, and a guide hole is provided on the rotating ring. The blade is inserted into the guide hole through the second fixing post, and the second fixing post can move in the guide hole so that the blade and the rotating ring are slidably connected.

[0042] In the second feasible implementation, the guide hole is a strip-shaped hole.

[0043] The strip-shaped hole provides space for the sliding of the second fixed column, enabling relative sliding of the blades relative to the rotating ring; in addition, the strip-shaped hole structure is simple and suitable for mass production; and it is easy to control the machining accuracy, thereby enabling control over the accuracy of the aperture hole change in the variable aperture.

[0044] In the second feasible implementation, during the process of multiple blades rotating relative to the base and sliding relative to the rotating ring, the larger the aperture of the aperture hole, the smaller the angle between the axis of the guide hole along its own length direction and the first straight line; wherein, the first straight line is the line connecting the center of the aperture hole and the center of the first fixed post.

[0045] This design of the guide hole ensures that the rotation direction of the blade is consistent with the rotation direction of the rotating ring, which is beneficial to the rotation of the blade itself when adjusting the aperture diameter.

[0046] In the second feasible implementation, the number of blades is six, arranged in two layers along the axial direction of the rotating ring, with three blades in each layer. The three blades in the upper layer are evenly distributed along the circumference of the rotating ring, and the three blades in the lower layer are also evenly distributed along the circumference of the rotating ring. The orthographic projections of the three blades in the upper and lower layers onto the rotating ring are evenly spaced along the circumference of the rotating ring.

[0047] In the second feasible implementation, the variable aperture also includes a spacer disposed between multiple blades and the base. The spacer serves to block light and reduce friction between the blades and the base, thus protecting the blades and the base.

[0048] In the second feasible implementation, the variable aperture also includes a drive structure; the drive structure is connected between the rotating ring and the base, and the drive structure is used to drive the rotating ring to rotate relative to the base, so as to drive multiple blades to rotate relative to the base and multiple blades to slide relative to the rotating ring.

[0049] In a feasible implementation of the second aspect, the drive structure includes: at least one magnet and at least one coil; the rotating ring has opposing first and second surfaces along the axial direction of the rotating ring; at least one coil is fixed on the first surface; the magnet is disposed opposite to the coil, and the magnet is located on the side of the coil away from the first surface.

[0050] In this way, the coil and magnet are positioned vertically along the axis of the rotating ring. When the coil is energized, a Lorentz force is generated tangentially to the rotating ring. Since the coil is fixed to the rotating ring, this tangential Lorentz force causes the coil to rotate the ring. By fixing the coil to the mover (i.e., the rotating ring), the magnet can be fixed to the base in a relatively stationary manner. Because the magnet is relatively stationary, its volume and weight can be appropriately increased to enhance its magnetic field strength. This allows the rotating ring to rotate even with a small current flowing through the coil, thereby reducing the power consumption of the variable aperture.

[0051] In addition, the coil is lighter than the magnet, so the thrust required when the coil rotates with the rotating ring is also smaller. This allows for a reduction in the number of magnets and coils, thereby reducing the weight of the variable aperture mover.

[0052] In the second feasible implementation, the magnet has a strip-shaped structure. Compared to a ring-shaped magnet, the gap between the magnet and the coil is smaller in a strip-shaped magnet, resulting in a stronger magnetic field. This helps to further reduce the current in the coil when the rotating ring rotates, thereby reducing the power consumption of the variable aperture.

[0053] In the second feasible implementation, a magnetic sheet is provided on the side of the magnet away from the coil. The magnetic sheet is used to increase the magnetic field strength, which helps to further reduce the current of the coil when the rotating ring rotates, thereby reducing the power consumption of the variable aperture.

[0054] In a feasible implementation of the second aspect, at least one coil includes a first coil and a second coil, and at least one magnet includes a first magnet and a second magnet; the first coil and the second coil are arranged at circumferential intervals along the rotating ring; the first magnet is opposite to the first coil, and the second magnet is opposite to the second coil.

[0055] In a second feasible implementation, the rotating ring includes an annular body portion and a boss formed on the outer annular surface of the body portion. A cavity is formed on the side of the boss facing the base, and the coil is disposed in the cavity.

[0056] By placing the coil inside the cavity, space can be effectively utilized, making the variable aperture structure compact.

[0057] In a feasible implementation of the second aspect, the variable aperture further includes an electrical connection structure; the electrical connection structure includes a first part, a second part, and a flexible connection part, the first part and the second part being connected through the flexible connection part; the first part is electrically connected to at least one coil, and the first part is rotatable with the rotating ring; the second part is used for electrical connection with external devices of the variable aperture.

[0058] By setting the electrical connection structure as a first part and a second part, the electrical connection structure can be set in a more flexible way. For example, the electrical connection structure can be set in the gap structure of the variable aperture, making the structure of the variable aperture compact. In addition, the first part and the second part are connected by a flexible connection part, so that when the first part rotates with the rotation of the coil, the relative displacement between the first part and the second part is canceled by the flexible connection part, so that the second part is stationary relative to the base.

[0059] In the feasible implementation of the second aspect, both the first part and the second part are ring-shaped structures; the axes of the first part and the second part are parallel to the axis of the rotating ring; the first part is located on the side of the coil away from the magnet and is electrically connected to the coil; the second part is located on the side of the magnet away from the coil.

[0060] In a feasible implementation of the second aspect, the outer annular surface of the second part is further formed with at least one connection terminal for electrical connection with an external device of the variable aperture.

[0061] In a feasible implementation of the second aspect, the base includes: a main body and a protrusion; the bottom of the protrusion is fixed to the main body, and a through hole passes through the protrusion and the main body; a rotating ring is sleeved on the outer periphery of the protrusion and is rotatably connected to the protrusion and / or the main body through a rotating structure.

[0062] In the second feasible implementation, the rotating structure includes: a limiting groove and a guide post inserted into the limiting groove, wherein the extending direction of the limiting groove is consistent with the circumferential direction of the rotating ring; one of the limiting groove and the guide post is disposed on the rotating ring, and the other is disposed on the main body.

[0063] Thirdly, embodiments of this application provide an electronic device, which includes a computing control unit and a variable aperture as provided in the first aspect, wherein the computing control unit is electrically connected to the variable aperture.

[0064] Fourthly, embodiments of this application provide a camera module, which includes a variable aperture as provided in the first aspect and an optical lens, wherein the optical lens is disposed in a through hole in the base, and the variable aperture is located on the light-incident side of the optical lens.

[0065] The variable aperture in the camera module provided in this application embodiment includes a base, a rotating ring disposed on the base, and blades. When the blades rotate relative to the base under the drive of the rotating ring, the position on the blades that is rotatably connected to the base is the pivot point for the blade rotation, and the position on the blades that is slidably connected to the rotating ring is the driving position for the blade rotation. The position where the blades are rotatably connected to the base is closer to the aperture hole than the position where the blades are slidably connected to the rotating ring, so that the pivot point is located between the driving position and the aperture hole. Compared to setting the driving position between the pivot point and the aperture hole, the ratio (L / M) between the distance L between the pivot point and the aperture hole and the distance (L / M) between the pivot point and the driving position is smaller in this application embodiment. Thus, when there is an error in the actual displacement of the rotating ring, the proportion by which the linear displacement of the end of the blade used to control the aperture hole's diameter amplifies this error is reduced, thereby improving the accuracy of the aperture coefficient F. By setting a variable aperture with a high aperture coefficient F, the amount of light entering the camera module can be precisely adjusted according to the photographic environment, thereby enabling the camera module to achieve excellent photographic performance.

[0066] In a feasible implementation of the fourth aspect, the camera module further includes a focusing motor; the focusing motor includes: an annular carrier, a base, and a drive assembly, the optical lens is fixed inside the annular carrier, the drive assembly is connected between the annular carrier and the base, and the drive assembly is used to drive the annular carrier, the optical lens, and the variable aperture to move together relative to the base; the drive assembly includes a third coil and a third magnet; the third coil is disposed on the outer wall surface of the annular carrier; along the radial direction of the annular carrier, the third coil and the third magnet are disposed opposite to each other, and the third magnet is disposed on the side of the third coil away from the annular carrier.

[0067] Based on the above description of the camera module structure given in the embodiments of this application, it can be seen that in the camera module, the third coil and the third magnet are arranged opposite each other along the radial direction of the annular carrier. When the third coil is energized, a Lorentz force along the axial direction of the annular carrier can be generated. The Lorentz force along the axial direction of the annular carrier drives the annular carrier to move up and down along the axial direction of the annular carrier, thereby realizing that the annular carrier, the optical lens and the variable aperture move together relative to the base.

[0068] In a feasible implementation of the fourth aspect, the variable aperture further includes a first magnet and a first coil; the variable aperture also includes an electrical connection structure; the electrical connection structure includes a first part, a second part and a flexible connection part, the first part and the second part being connected through the flexible connection part; the first part is electrically connected to the first coil and is capable of rotating with the rotating ring; the second part is electrically connected to the third coil.

[0069] In this way, the first part can energize the first coil to realize the rotation of the rotating ring in the variable aperture, thereby adjusting the aperture aperture and realizing the function of the variable aperture; the first part transmits current to the second part through the flexible connection part, and the second part then transmits current to the third coil to realize the up and down movement of the ring carrier along the axis of the ring carrier, thereby realizing the movement of the ring carrier, optical lens and variable aperture together relative to the base.

[0070] Furthermore, in the focusing motor, the third coil and the third magnet are arranged radially opposite each other along the annular carrier, while in the variable aperture, the first magnet and the first coil are arranged axially opposite each other along the rotating ring. Because the radial direction of the annular carrier and the axial direction of the rotating ring are perpendicular to each other, the magnetic field direction generated by the third coil after energizing is perpendicular to the magnetic field direction generated by the first coil after energizing. Therefore, the mutual influence between the magnetic field generated in the variable aperture and the magnetic field generated in the focusing motor is reduced.

[0071] In the feasible implementation of the fourth aspect, both the first part and the second part are ring-shaped structures; the axial directions of both the first part and the second part are parallel to the axial direction of the rotating ring; the first part is located on the side of the first coil away from the first magnet; the second part is located on the side of the first magnet away from the first coil, and the outer ring surface of the second part is also formed with a connecting terminal, which is electrically connected to the third coil.

[0072] In a feasible implementation of the fourth aspect, the variable aperture further includes: a second magnet and a second coil, arranged opposite to each other along the axial direction of the variable aperture; the drive assembly further includes a fourth coil and a fourth magnet, arranged opposite to each other along the radial direction of the annular carrier; the first coil, the second coil, the third coil and the fourth coil are arranged alternately along the circumference of the annular carrier.

[0073] In a feasible implementation of the fourth aspect, the first coil, the second coil, the third coil, and the fourth coil are arranged in a 90° circular array along the circumference of the annular carrier.

[0074] Fifthly, embodiments of this application also provide an electronic device, which includes a computing control unit, such as the camera module provided in the fourth aspect, wherein the computing control unit is electrically connected to the camera module. By setting a variable aperture with a high f-number, the amount of light entering the camera module can be precisely adjusted according to the photographic environment, thereby obtaining excellent photographic performance and enabling the electronic device to achieve photographic effects close to those of an SLR camera. Attached Figure Description

[0075] Figure 1a A schematic diagram of the existing variable aperture is shown;

[0076] Figure 1b for Figure 1a The diagram shows a partial structural schematic of the variable aperture.

[0077] Figure 2a This paper shows a schematic diagram of the structure of a mobile phone 100 provided in an embodiment of this application;

[0078] Figure 2b for Figure 2a A schematic diagram showing the disassembly of a mobile phone 100;

[0079] Figure 3 for Figure 2a The diagram shows the internal circuitry of mobile phone 100.

[0080] Figure 4a This illustration shows an assembly diagram of a camera module 130 provided in an embodiment of this application;

[0081] Figure 4b for Figure 4a A schematic diagram showing the disassembly of a camera module 130 is provided;

[0082] Figure 5 for Figure 4b A schematic diagram of the structure of the optical lens 302 within the camera module 130 shown;

[0083] Figure 6 for Figure 4b A schematic diagram of the assembly of the variable aperture 301 within the camera module 130 shown;

[0084] Figure 7 for Figure 6 A schematic diagram showing the split of the variable aperture 301;

[0085] Figure 8a for Figure 7 A partial structural schematic diagram of the inner housing 3 of the variable aperture 301 is shown;

[0086] Figure 8b for Figure 7 A partial structural schematic diagram of the inner rotating ring 2 of the variable aperture 301 is shown;

[0087] Figure 9a for Figure 8a The shell 3 shown and Figure 8b The diagram shows the disassembled view of the rotating ring 2.

[0088] Figure 9b for Figure 9a A partial cross-sectional view of the assembled housing 3 and rotating ring 2 shown;

[0089] Figure 10 for Figure 7 The schematic diagram of the structure of the blade 1 inside the variable aperture 301 is shown;

[0090] Figure 11a for Figure 7 A schematic diagram showing the disassembled rotating ring 2, base 3a, and multiple blades 1 in the variable aperture 301;

[0091] Figure 11b for Figure 7 A schematic diagram showing the change in aperture diameter of aperture hole 4 in the variable aperture 301;

[0092] Figure 11c for Figure 11b The diagram shows the structure of the variable aperture 301 as the aperture of aperture 4 gradually increases in size.

[0093] Figure 12a for Figure 7 The diagram shows the assembly of the rotating ring 2, the base 3a, and the multiple blades 1 in the variable aperture 301.

[0094] Figure 12b for Figure 12a A schematic diagram of the torque of a single blade 1;

[0095] Figure 12c A schematic diagram of the torque after changing the relative position of the rotation fulcrum S and the driving position T of the blade;

[0096] Figure 13 for Figure 7 A schematic diagram of the electrical connection structure 5 in the variable aperture 301 shown;

[0097] Figure 14 for Figure 7 The variable aperture 301 shown contains the driving structure 6 and Figure 13 The assembly diagram of the electrical connection structure 5 shown;

[0098] Figure 15 for Figure 8aThe base 3a shown and Figure 13 The assembly diagram of the electrical connection structure 5 shown;

[0099] Figure 16 for Figure 6 The schematic diagram of the BB cross-section of the variable aperture 301 shown;

[0100] Figure 17 for Figure 7 The assembly diagram of the rotating ring 2, electrical connection structure 5 and drive structure 6 in the variable aperture 301 is shown.

[0101] Figure 18 for Figure 4b A schematic diagram of the focusing motor 303 inside the camera module 130 shown.

[0102] Figure 19 for Figure 18 The CC cross-sectional view of the focusing motor 303 shown.

[0103] Figure 20 for Figure 18 The annular carrier 3031 inside the focusing motor 303 shown is... Figure 13 The assembly diagram of the electrical connection structure 5 in the variable aperture 301 is shown.

[0104] Figure 21 This is a schematic diagram of the internal drive structure 6 of the variable aperture 301 and the internal drive assembly 3033 of the focus motor 303.

[0105] in,

[0106] 100-Mobile phone, 110-Screen, 111-Light-transmitting cover, 112-Display, 120-Back cover, 121-Back cover, 122-Frame, 123-Middle plate, 130-Camera module, 140-Motherboard, 141-Control unit, 150-Camera decorative cover, 151-Light-transmitting window, 160-Mounting hole;

[0107] 301 - Variable aperture,

[0108] 1-blade, 1a-first region, 1b-second region, 1c-third region, 1d-fourth region, 11-guide hole, 12-rotation hole, 13-tail, 13a-inner edge, 14-fourth notch;

[0109] 2-Rotating ring, 2a-First surface, 2b-Second surface, 2c-Body part, 21-Second fixing post, 22-First protrusion, 23-Boss, 23a-Cavity, 24-Limiting groove, 25-First through hole, 25a-Second protrusion;

[0110] 3-Housing, 3a-Base, 30-Main body, 3a1-Inner surface, 3a2-Lower end face, 3a3-Receiving groove, 3b-Side frame, 3c-Cover plate, 3d-Receiving cavity, 31-First fixing post, 32-First notch, 33-Second notch, 34-Guide post, 35-Protrusion, 35a-Third surface, 36-Through hole;

[0111] 4-Aperture hole;

[0112] 5 - Electrical connection structure, 5a - First part, 5b - Second part, 5b1 - Connection terminal, 5c - Flexible connection part;

[0113] 6-Drive structure, 61-Coil, 61a-First coil, 61b-Second coil, 62-Magnet, 62a-First magnet, 62b-Second magnet, 63-Magnetic sheet, 64-Second gap, 65-Third gap;

[0114] 7-Gasket;

[0115] 8-Rotating structure;

[0116] 9 - First gap, 91 - Accommodation space;

[0117] 302 - Optical lens, 302a - Incident light surface, 302b - Exit light surface, 3021 - Lens barrel, 3022 - Lens group;

[0118] 303 - Focusing Motor

[0119] 3031-ring carrier, 3032-base, 3033-drive assembly, 3033a-third coil, 3033b-third magnet, 3033c-fourth coil, 3033d-fourth magnet;

[0120] 304 - Photosensitive element. Detailed Implementation

[0121] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. In the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can represent A or B. "And / or" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple. Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that "first" and "second" are not necessarily different. Meanwhile, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is being used as an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present related concepts in a concrete manner for ease of understanding.

[0122] This application provides an electronic device with a camera function. Specifically, the electronic device may include a mobile phone, tablet computer, smart wearable products (e.g., smartwatches, smart bracelets), virtual reality (VR) devices, augmented reality (AR) devices, and may also be a home appliance. This application does not impose any special limitations on the specific form of the aforementioned electronic device.

[0123] The following uses a mobile phone as an example to describe in detail the electronic device provided in the embodiments of this application.

[0124] Figure 2a A schematic diagram of the structure of a mobile phone 100 provided in an embodiment of this application is shown. Figure 2b for Figure 2a The diagram shows a disassembled version of a mobile phone 100. (Together) Figure 2a and Figure 2b The mobile phone 100 includes a screen 110, a back cover 120, a camera module 130, a motherboard 140, and a camera decorative cover 150.

[0125] Understandable, Figure 2a and Figure 2b The images only schematically illustrate some of the components included in the mobile phone 100; the actual shape, size, location, and construction of these components are not subject to change. Figure 2a and Figure 2b The limitations. In some other examples, the phone 100 may also not include the screen 110 and the camera cover 150.

[0126] Screen 110 is used to display images, videos, etc. Screen 110 includes a light-transmitting cover 111 and a display screen 112. The light-transmitting cover 111 and the display screen 112 are stacked and fixedly connected. The light-transmitting cover 111 is mainly used to protect the display screen 112 and prevent dust. The material of the light-transmitting cover 111 includes, but is not limited to, glass.

[0127] The display screen 112 can be a flexible display screen or a rigid display screen. For example, the display screen 112 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MOLED) display screen, a quantum dot light-emitting diode (QLED) display screen, or a liquid crystal display (LCD).

[0128] The back cover 120 protects the internal electronic components of the mobile phone 100. The back cover 120 includes a back cover 121 and a frame 122. The back cover 121 is located on the side of the display screen 112 away from the light-transmitting cover 111, and is stacked on top of the light-transmitting cover 111 and the display screen 112. The frame 122 is fixed to the back cover 121. For example, the frame 122 can be fixedly connected to the back cover 121 by adhesive. The frame 122 can also be integrally formed with the back cover 121, i.e., the frame 122 and the back cover 121 are a single integral structure. The frame 122 is located between the back cover 121 and the light-transmitting cover 111. The light-transmitting cover 111 can be fixed to the frame 122 by adhesive. The light-transmitting cover 111, the back cover 121, and the frame 122 form an internal receiving space for the mobile phone 100. This internal receiving space accommodates the display screen 112.

[0129] For ease of description below, the stacking direction of the light-transmitting cover 111, display screen 112, and back cover 121 in mobile phone 100 is defined as the Z-axis direction. The plane parallel to the light-transmitting cover 111, display screen 112, and back cover 121 is defined as the XY plane. It is understood that the coordinate system setting of mobile phone 100 can be flexibly set according to specific actual needs, and no specific limitation is made here.

[0130] The camera module 130 is used to capture photos / videos. The camera module 130 integrates a variable aperture (VA) and a focusing motor. The variable aperture is used to adjust the amount of light entering the camera. The focusing motor is used to achieve automatic focusing (AF) and / or optical image stabilization (OIS). The camera module 130 is fixed within the internal cavity of the mobile phone 100. For example, the camera module 130 can be fixed to the surface of the display screen 112 near the back cover 121 by means of threaded connection, snap-fit, soldering, etc.

[0131] In other embodiments, please refer to Figure 2b The mobile phone 100 also includes a middle plate 123. The middle plate 123 is fixed to the inner surface of the frame 122 around its perimeter. For example, the middle plate 123 can be fixed to the frame 122 by welding. The middle plate 123 can also be integrally formed with the frame 122. The middle plate 123 serves as the structural "skeleton" of the mobile phone 100, and the camera module 130 can be fixed to the middle plate 123 by means of threaded connection, snap-fit, welding, etc.

[0132] The camera module 130 can be used as a rear camera module or a front camera module.

[0133] For an example, please refer to Figure 2a and Figure 2bThe camera module 130 is fixed to the surface of the middle plate 123 near the back cover 121, with the light-incident surface of the camera module 130 facing the back cover 121. The back cover 121 has mounting holes 160, and a camera decorative cover 150 covers and is fixed to the mounting holes 160. The camera decorative cover 150 is used to protect the camera module 130.

[0134] In some embodiments, the camera cover 150 protrudes to the side of the back cover 121 away from the light-transmitting cover 111. In this way, the camera cover 150 can increase the mounting space of the camera module 130 in the Z-axis direction within the mobile phone 100.

[0135] In other embodiments, the camera cover 150 may be flush with the back cover 121 or recessed into the internal receiving space of the phone 100. The camera cover 150 is provided with a light-transmitting window 151. The light-transmitting window 151 allows light from the scene to enter the light-receiving surface of the camera module 130.

[0136] In this embodiment, the camera module 130 is used as the rear camera module of the mobile phone 100.

[0137] For example, camera module 130 can be used as a rear-mounted main camera module.

[0138] In other examples, camera module 130 can also be used as a rear-facing wide-angle camera module or a telephoto camera module.

[0139] In other embodiments, the camera module 130 is fixed to the surface of the middle plate 123 near the light-transmitting cover plate 111. The light-incident surface of the camera module 130 faces the light-transmitting cover plate 111. The display screen 112 is provided with a light path avoidance hole. This light path avoidance hole allows light from the scene to pass through the light-transmitting cover plate 111 and enter the light-incident surface of the camera module 130. In this way, the camera module 130 serves as a front-facing camera module for the mobile phone 100.

[0140] The motherboard 140 is fixed in the internal cavity of the mobile phone 100. For example, the motherboard 140 can be fixed to the middle plate 123 by means of threaded connection, snap-fit, etc. When the mobile phone 100 does not include the middle plate 123, the motherboard 140 can also be fixed to the surface of the display screen 112 near the back cover 121 by means of threaded connection, snap-fit, etc.

[0141] Figure 3 for Figure 2a The diagram shows the internal circuitry of mobile phone 100. Figure 3As shown, in some embodiments, the mobile phone 100 further includes a computing control unit 141. For example, the computing control unit 141 may be located on the motherboard 140. The computing control unit 141 may also be located on other circuit boards within the electronic device, such as on the circuit board where a universal serial bus (USB) device is located. In some embodiments, the computing control unit 141 is an application processor (AP).

[0142] The computing control unit 141 is electrically connected to the camera module 130. The computing control unit 141 is used to receive and process electrical signals containing image information from the camera module 130. The computing control unit 141 is also used to control the variable aperture and focus motor movement of the camera module 130 to realize the adjustment of the amount of light entering the camera module 130, AF movement and / or OIS movement.

[0143] The camera module 130 provided in this application will be described in detail below with reference to the accompanying drawings.

[0144] Figure 4a This illustration shows an assembly diagram of a camera module 130 provided in an embodiment of this application. Figure 4b for Figure 4a A schematic diagram showing the disassembled state of a camera module 130 is provided. (Together) Figure 4a and Figure 4b The camera module 130 includes a variable aperture 301, an optical lens 302, a focusing motor 303, and a photosensitive component 304.

[0145] Understandable, Figure 4a and Figure 4b The camera module 130 is shown only schematically, and the actual shape, size, position, and construction of these components are not subject to change. Figure 4a and Figure 4b Restrictions.

[0146] The optical lens 302 is used to image the subject being photographed. For example, the optical lens 302 can be a vertical optical lens with its optical axis extending along the Z-axis. The optical lens 302 can also be a periscope optical lens with its optical axis parallel to the XY plane. The optical lens 302 is fixed within the focusing motor 303.

[0147] Please see Figure 5 , Figure 5 for Figure 4bThis is a schematic diagram of the structure of the optical lens 302 within the camera module 130. The optical lens 302 includes a lens barrel 3021 and an optical lens assembly 3022. The lens barrel 3021 is used to fix and protect the optical lens assembly 3022. The lens barrel 3021 has a cylindrical structure, meaning that the lens barrel 3021 is open at both ends along the optical axis. The optical lens assembly 3022 is installed inside the lens barrel 3021. The optical lens assembly 3022 includes at least one optical lens. When the optical lens assembly 3022 includes multiple optical lenses, the multiple optical lenses are stacked along the optical axis.

[0148] The optical lens 302 may also consist only of the optical lens group 3022. The optical lens group 3022 is mounted within the focusing motor 303. Thus, the focusing motor 303 secures and protects the optical lens group 3022. In this embodiment, the focusing motor 303 and the optical lens 302 are integrated, which helps to reduce the size of the camera module 130.

[0149] By designing the structure of the optical lens group 3022 and the shape and size of each optical lens, optical lenses with different characteristics such as wide-angle, standard, and telephoto can be obtained.

[0150] Please continue reading. Figure 5 The optical lens 302 includes an incident light surface 302a and an exit light surface 302b. The incident light surface 302a faces the surface of the object being photographed during use. Light from the object enters the optical lens 302 through the incident light surface 302a. The exit light surface 302b faces away from the surface of the object being photographed during use. Light from the object exits through the exit light surface 302b.

[0151] Please return to the reference. Figure 4b The variable aperture 301 has a variable aperture opening 4. This aperture opening 4 is located on the light-incident side of the optical lens 302. See also... Figure 5 The light-incident side of the optical lens 302 refers to the side of the optical lens 302 whose light-incident surface 302a is away from the light-exit surface 302b. The aperture 4 is opposite to the light-incident surface 302a of the optical lens 302. That is, the orthographic projection of the aperture 4 onto the light-incident surface 302a of the optical lens 302 partially or completely overlaps with the light-incident surface 302a. In some embodiments, the central axis of the aperture 4 is collinear with the optical axis of the optical lens 302. Light rays from the scene enter the optical lens 302 through the aperture 4. Thus, the variable aperture 301 can adjust the amount of light entering the optical lens 302 by adjusting the size of the aperture 4.

[0152] Figure 6 for Figure 4b The diagram shows the assembly of the variable aperture 301 within the camera module 130. Figure 7for Figure 6 The diagram shows a split view of the variable aperture 301. (Together) Figure 6 and Figure 7 The variable aperture 301 includes multiple blades 1, a rotating ring 2, a housing 3, an aperture hole 4, an electrical connection structure 5, and a drive structure 6.

[0153] Understandable, Figure 6 and Figure 7 The variable aperture 301 is shown only schematically, and the actual shape, size, position, and construction of these components are not subject to change. Figure 6 and Figure 7 Restrictions.

[0154] The housing 3 serves to protect the internal components of the variable aperture 301 from dust. The materials of the housing 3 include, but are not limited to, metal and plastic.

[0155] The shell 3 can be a one-piece molded structure or it can be assembled from multiple parts.

[0156] For an example, please refer to Figure 6 and Figure 7 The housing 3 includes a base 3a, a side frame 3b, and a cover plate 3c. The base 3a and the cover plate 3c are located on opposite sides of the side frame 3b. The base 3a and the side frame 3b can be integrally formed, and the side frame 3b and the cover plate 3c can be fixed together by adhesive or snap-fit. In this way, the housing 3 is assembled from two integrally formed parts: the base 3a and the side frame 3b and the cover plate 3c. This reduces the length of the housing 3 along the axial direction of the variable aperture 301, thereby reducing the overall size of the camera module 130.

[0157] Figure 8a for Figure 7 The diagram shows a partial structural schematic of the inner housing 3 of the variable aperture 301. Figure 8a As shown, the base 3a and side frame 3b of the housing 3 are integrally formed. The base 3a and side frame 3b form a receiving cavity 3d.

[0158] Please continue reading Figure 8a In some embodiments, the base 3a includes a main body 30, and a protrusion 35 is provided on the inner surface 3a1 of the main body 30. The protrusion 35 extends a certain distance into the receiving cavity 3d along the axial direction of the side frame 3b.

[0159] The outer wall surface of the protrusion 35 and the inner wall surface of the side frame 3b have a first gap 9, which can be used to assemble the rotating ring 2.

[0160] Please continue reading Figure 8aIn some embodiments, the base 3a has a through hole 36 through the protrusion 35, which can be used to mount an optical lens 302. The through hole 36 can also be used to mount a flash.

[0161] Figure 8b for Figure 7 A partial structural schematic diagram of the rotating ring 2 inside the variable aperture 301 is shown. Figure 8b As shown, along the axial direction of the rotating ring 2, the rotating ring 2 has a first surface 2a and a second surface 2b opposite to each other.

[0162] Figure 9a for Figure 8a The shell 3 shown and Figure 8b The diagram shows a split view of the rotating ring 2. Figure 9b for Figure 9a The diagram shows a partial cross-sectional view of the inner housing 3 of the variable aperture 301 and the rotating ring 2 after assembly. (Together) Figures 8a to 9a The rotating ring 2 is sleeved on the outer periphery of the protrusion 35 of the housing 3, and is rotatably connected to the protrusion 35 and / or the main body 30 through the rotating structure 8.

[0163] Please continue reading Figure 9a In some embodiments, the rotating structure 8 includes a limiting groove 24 and a guide post 34 inserted into the limiting groove 24. The extending direction of the limiting groove 24 is consistent with the circumferential direction of the rotating ring 2. One of the limiting groove 24 and the guide post 34 is disposed on the rotating ring 2, and the other is disposed on the main body 30.

[0164] In one implementation, such as Figure 9a As shown, the limiting groove 24 is provided on the rotating ring 2, and the guide post 34 is provided on the main body 30.

[0165] Please continue reading Figure 9a In some embodiments, the rotating ring 2 is disposed inside the housing 3. Specifically, the rotating ring 2 is disposed between the inner wall surface of the side frame 3b and the outer wall surface of the protrusion 35. Compared with the rotating ring 2 being disposed outside the housing 3, the structure and arrangement of the rotating ring 2 provided in this application embodiment can reduce the volume of the variable aperture 301. By directly fixing the rotating ring 2 inside the housing 3, there is no need to set other structural components, thereby maximizing the utilization of the structural space of the variable aperture 301. At the same time, the architecture of the variable aperture 301 is more compact, achieving simplification of the internal components of the variable aperture 301.

[0166] Please continue reading. Figure 9aTo achieve a rotatable connection between the rotating ring 2 and the housing 3, in some embodiments, the edge of the rotating ring 2 is provided with a plurality of first protrusions 22 spaced apart. In one implementation, the number of first protrusions 22 is four. The plurality of first protrusions 22 are spaced apart along the circumference of the rotating ring. The edge of the side frame 3b of the housing 3 is provided with a first notch 32 opposite to the plurality of first protrusions 22. Wherein, along the circumference of the rotating ring, the length P of the first notch 32 is greater than the length Q of the first protrusion 22, so that the first protrusion 22 can slide within the first notch 32, thereby achieving a rotatable connection between the rotating ring 2 and the housing 3. Wherein, the rotating ring 2 and the housing 3 are rotatably connected within the housing 3 through a sliding friction pair.

[0167] In some embodiments, the rotation axis of the rotating ring 2 is parallel to... Figure 8a The central axes of the aperture holes 4 shown are collinear.

[0168] Please continue reading. Figure 9a and Figure 9b In some embodiments, a first through hole 25 is provided in the rotating ring 2, and the protrusion 35 of the base 3a extends into the first through hole 25. In this way, the sliding of the rotating ring 2 and the housing 3 along the radial direction O-XY of the rotating ring 2 is restricted, so as to achieve the limiting of the rotating ring 2 and the housing 3 when the rotating ring 2 slides relative to the housing 3.

[0169] In one implementation, a second protrusion 25a is provided on the lower edge of the first through hole 25 of the rotating ring 2. The second protrusion 25a is engaged with the upper edge of the side frame 3b of the housing 3, further defining the positional relationship between the rotating ring 2 and the housing 3.

[0170] Please see Figure 7 and Figure 9b In some embodiments, after the rotating ring 2 is assembled with the housing 3, a plurality of blades 1 are provided on the second surface 2b of the rotating ring 2 and the third surface 35a of the protrusion 35 of the housing 3. In some embodiments, the second surface 2b and the third surface 35a have a height difference along the axial direction of the rotating ring 2, and the sliding friction of the blades 1 during rotation can be reduced by providing a shim 7 on the third surface 35a.

[0171] Additionally, there is a receiving space 91 between the rotating ring 2 and the housing 3, which can be used to assemble the electrical connection structure 5 and the drive structure 6.

[0172] Figure 10 for Figure 7 The diagram shows the structure of the blade 1 inside the variable aperture 301. Figure 10As shown, this embodiment uses one blade 1 as an example to specifically describe the structure of blade 1. The structures of other blades 1 are the same as those of this one blade 1, so they will not be described in detail. A blade 1 includes a first region 1a, a second region 1b, and a third region 1c connected in sequence.

[0173] It should be noted that the shapes of the first region 1a, the second region 1b, and the third region 1c can be adjusted as needed. Figure 10 One of the examples is shown only schematically and should not be considered as constituting a specific limitation on this application.

[0174] In some embodiments, the first region 1a, the second region 1b, and the third region 1c are integrally formed structures. That is, the first region 1a, the second region 1b, and the third region 1c are a single structural component. In other embodiments, the first region 1a, the second region 1b, and the third region 1c may also be different structures, which are assembled to form the blade 1.

[0175] Please continue reading. Figure 10 The first region 1a of the blade 1 is used for slidable connection with the rotating ring 2.

[0176] In some embodiments, please refer to Figure 10 The first region 1a of blade 1 is provided with a guide hole 11. Figure 11a for Figure 7 The diagram shows a disassembled view of the rotating ring 2, the base 3a, and the multiple blades 1 in the variable aperture 301. Figure 11a As shown, a second fixed post 21 is provided on the rotating ring. The blade 1 passes through the guide hole 11 and is mounted on the second fixed post 21, and can slide relative to the second fixed post 21 so that the blade 1 is slidably connected to the rotating ring 2.

[0177] In one implementation, the guide hole 11 is a strip-shaped hole. When the rotating ring 2 rotates relative to the base 3a, the sidewall of the guide hole 11 is tangent to the outer wall surface of the second fixed post 21 to limit the relative sliding between the blade 1 and the rotating ring 2.

[0178] In some other embodiments, the guide hole 11 is provided on the rotating ring 2, and the second fixing post 21 is provided on the first region 1a of the blade 1.

[0179] Figure 11b for Figure 7 This is a schematic diagram showing the change in the aperture diameter of the aperture hole 4 in the variable aperture 301. Figure 11bAs shown, in some embodiments, during the rotation of multiple blades 1 relative to the base 3a and the sliding of the rotating ring 2, the larger the diameter of the aperture hole 4, the smaller the angle between the axis k2 of the guide hole 11 along its own length direction and the first straight line k1; wherein, the first straight line k1 is the line connecting the center of the aperture hole 4 and the center of the first fixed post 31. This arrangement of the guide hole 11 ensures that the rotation direction of the blades 1 is consistent with the rotation direction of the rotating ring 2, which is beneficial to the rotation of the blades 1 themselves when adjusting the aperture hole 4.

[0180] The strip-shaped hole provides space for the sliding of the second fixed column 21, enabling the relative sliding of the blade 1 relative to the rotating ring 2. In addition, the strip-shaped hole has a simple structure, making it suitable for mass production. Furthermore, it is easy to control the processing accuracy, thereby enabling the control of the accuracy of the aperture hole 4 in the variable aperture.

[0181] Please continue reading. Figure 10 The second region 1b of blade 1 is used for rotatable connection with base 3a.

[0182] In some embodiments, please refer to Figure 10 The second region 1b of blade 1 is provided with a rotation hole 12. (See also...) Figure 11a The base 3a is provided with a first fixed post 31. The blade 1 passes through the rotating hole 12 and is mounted on the first fixed post 31, and can rotate around the first fixed post 31 so that the blade 1 is rotatably connected to the base 3a.

[0183] In one implementation, the rotating hole 12 is a circular hole.

[0184] In some other embodiments, the rotating hole 12 is disposed on the base 3a, and the first fixing post 31 is disposed on the second region 1b of the blade 1.

[0185] Thus, when blade 1 rotates relative to base 3a under the drive of rotating ring 2, the position on blade 1 that is rotatably connected to base 3a is the pivot point of blade 1's rotation, and the position on blade 1 that is slidably connected to rotating ring 2 is the driving position of blade 1's rotation. The position on blade 1 that is rotatably connected to base 3a is located between the position on blade 1 that is slidably connected to rotating ring 2 and the aperture 4. It should be noted that since blade 1 is rotatable, the position on blade 1 that is slidably connected to rotating ring 2 will change as rotating ring 2 rotates. Regardless of the position to which blade 1 rotates, the position on blade 1 that is slidably connected to rotating ring 2 should satisfy the aforementioned relationship. For ease of description, the position on blade 1 that is rotatably connected to base 3a is referred to as the first position, and the position on blade 1 that is slidably connected to rotating ring 2 is referred to as the second position. The setting position of the first position is not limited to the line connecting the second position and the center of aperture 4; the setting position of the first position can also be outside the line connecting the second position and the center of aperture 4, as long as the distance from the first position to the center of aperture 4 is less than the distance from the second position to the center of aperture 4.

[0186] Furthermore, setting the first position between the second position and the aperture 4, compared to setting the second position between the first position and the aperture 4, allows for a wider range of aperture diameter variation by increasing the relative rotation angle range between the rotating ring 2 and the base 3a, while keeping the size of the blade 1 constant. It is understandable that setting the first position requires not only meeting the accuracy requirements of the aperture coefficient F, but also considering the maximum relative rotation angle between the rotating ring 2 and the base 3a.

[0187] Table 1 lists the dimensions and attachments of the blades provided in the embodiments of this application. Figure 1a and Figure 1b The blade dimensions provided by the technical solution shown.

[0188] Table 1

[0189]

[0190] Among them, blade sensitivity refers to the ratio of the change in the diameter of the aperture to the angle of rotation of the rotating ring relative to the base; the rotation axis radius refers to the distance between the center of the second fixed post and the center of the aperture; and the fixed axis radius refers to the distance between the center of the first fixed post and the center of the aperture.

[0191] As shown in Table 1, when the blade dimensions and attachments provided in the embodiments of this application are... Figure 1a and Figure 1b When the illustrated technical solutions provide the same blade sensitivity, for example, a blade sensitivity of 0.3 (meaning the diameter change of the aperture is 0.3 when the rotating ring rotates 1° relative to the base), then... Figure 1a and Figure 1bIn the illustrated technical solution, the rotation axis radius is 3.275 and the fixed axis radius is 3.9; the blade rotation axis radius provided in this application embodiment is 5.7 and the fixed axis radius is 4.5. It can be seen that the blade dimensions provided in this application embodiment are different from those in the attached... Figure 1a and Figure 1b The technical solution shown provides blade dimensions that, with the same blade sensitivity, increase the radius of the rotating shaft, increase the fit tolerance of the guide hole and the second fixed post, and improve the tolerance tolerance of the aperture hole, thereby improving the motion consistency of multiple blades and avoiding anisotropy.

[0192] Please see Figure 10 and Figure 11a The third region 1c of blade 1 is used to cooperate with the third regions of other blades to form an aperture 4. The third region 1c of blade 1 includes a tail 13. The tail 13 is elongated and includes an inner edge 13a, which forms the edge of the aperture 4. The shape of the tail 13 can be a straight line, an arc, or a combination of both. The shape of the tail 13 can also be other irregular shapes. In this embodiment, the shape of the tail 13 is an arc.

[0193] In the above embodiments, please refer to Figure 10 and Figure 11a The diameter of the aperture 4 is D. When the rotating ring 2 rotates relative to the base 3a in direction A, the second fixed post 21 can push the blade 1 to rotate around the first fixed post 31 in direction a, thereby reducing the diameter D of the aperture 4. Conversely, when the rotating ring 2 rotates relative to the base 3a in the opposite direction a1, the second fixed post 21 can push the blade 1 to rotate around the first fixed post 31 in the opposite direction a, thereby increasing the diameter D of the aperture 4. This achieves the purpose of adjusting the size of the aperture 4.

[0194] Figure 11c for Figure 11b The diagram shows the structure of the variable aperture 301 as the aperture of aperture 4 gradually increases. Figure 11c As shown in (Ⅰ), the aperture coefficient F of the variable aperture 301 is 1; Figure 11c As shown in (II), the aperture factor F of the variable aperture 301 is 2.8; Figure 11c As shown in (III), the aperture factor F of the variable aperture 301 is 2; Figure 11c As shown in (Ⅳ), the aperture coefficient F of the variable aperture 301 is 1.6.

[0195] In some embodiments, the blade 1 further includes a fourth region 1d, which forms a fourth notch 14. The fourth notch 14 is used to avoid the first fixing post of two adjacent blades 1. At the same time, the fourth notch 14 can also limit the displacement of the blade 1 in the radial direction of the rotating ring 2, thus playing a limiting role.

[0196] In some embodiments, the first region 1a, the second region 1b, the third region 1c, and the fourth region 1d are integrally formed structures.

[0197] In some embodiments, the number of blades 1 is six, arranged in two layers along the axial direction of the rotating ring 2, with three blades 1 in each layer. The three blades 1 in the upper layer are evenly distributed along the circumference of the rotating ring 2, and the three blades 1 in the lower layer are evenly distributed along the circumference of the rotating ring 2. The orthographic projections of the three blades 1 in the upper layer and the three blades 1 in the lower layer onto the rotating ring 2 are evenly spaced along the circumference of the rotating ring 2.

[0198] Figure 12a for Figure 7 The diagram shows the assembly of the rotating ring 2, the base 3a, and the multiple blades 1 in the variable aperture 301. Figure 12a As shown, the position on blade 1 that is rotatably connected to base 3a is the pivot point S for the rotation of blade 1, and the position where blade 1 is slidably connected to rotating ring 2 is the driving position T for the rotation of blade 1. The pivot point S is closer to aperture 4 than the driving position T where blade 1 is slidably connected to rotating ring 2, such that the pivot point S is located between the driving position T and aperture 4.

[0199] Figure 12b for Figure 12a A schematic diagram of the torque of a single blade 1. Figure 12a and Figure 12b As shown, the portion of blade 1 used to form the aperture 4 has a position W. The ratio of the distance L between the pivot point S and the aperture (taking position W as an example) and the distance M between the pivot point S and the drive position T, as well as the ratio of the actual linear displacement of the end of the blade used to control the aperture size (taking position W as an example) to the actual moving displacement of the rotating ring, are the same.

[0200] Figure 12c This is a schematic diagram illustrating the torque after changing the relative positions of the blade's rotation pivot point S and the driving position T. (See diagram below.) Figure 12c As shown, unlike the blade provided in this application, the driving position T' is set between the rotation fulcrum S' and the position W. The distance between the rotation fulcrum S' and the aperture (taking position W as an example) is distance L', and the distance between the rotation fulcrum S' and the driving position T' is distance M. Compared with the ratio of L to M, the ratio of L' to M is significantly increased.

[0201] Combined Figure 12b and Figure 12c When the actual displacement of the rotating ring differs from the preset displacement by 0.1 mm, the difference between the actual linear displacement of position W on blade 1 and the preset linear displacement is small, for example, 0.2 mm, due to the small ratio of L to M. Conversely, the difference between the actual linear displacement of position W and the preset linear displacement is large, for example, 0.5 mm, due to the large ratio of L' to M. Therefore, the aperture coefficient F of the variable aperture provided in this embodiment has higher accuracy.

[0202] Figure 13 for Figure 7 The diagram shows the electrical connection structure 5 in the variable aperture 301. Figure 13 As shown, the electrical connection structure 5 includes a first part 5a, a second part 5b, and a flexible connection part 5c. The first part 5a and the second part 5b are connected by the flexible connection part 5c. By setting the electrical connection structure 5 as a first part 5a and a second part 5b, the electrical connection structure can have a more flexible arrangement. For example, the electrical connection structure 5 can be set in the gap structure (such as the first gap 9) of the variable aperture 301, making the structure of the variable aperture 301 compact. In addition, the first part 5a and the second part 5b are connected by the flexible connection part 5c, so that when the first part 5a rotates with the rotation of the coil 61, the relative displacement between the first part 5a and the second part 5b is canceled by the flexible connection part 5c, thereby keeping the second part 5b stationary relative to the base.

[0203] Please continue reading Figure 7 and Figure 13 In some embodiments, the first part 5a and the second part 5b are both annular structures; the axial directions of the first part 5a and the second part 5b are parallel to the axial direction of the rotating ring 2.

[0204] Figure 14 for Figure 7 The variable aperture 301 shown contains the driving structure 6 and Figure 13 The diagram shows the assembly of electrical connection structure 5. (Together) Figure 13 and Figure 14 The first part 5a is disposed on the side of the coil 61 away from the magnet 62 and is electrically connected to the coil 61; the second part 5b is disposed on the side of the magnet 62 away from the coil 61.

[0205] In some embodiments, the outer annular surface of the second portion 5b is further formed with at least one connection terminal 5b1, which is used for electrical connection with an external device of the variable aperture 301.

[0206] like Figure 14As shown, the drive structure 6 includes at least one coil 61 and at least one magnet 62. A first part 5a is electrically connected to at least one coil 61 and is slidable with the rotating ring 2; a second part 5b is used for electrical connection to an external device with a variable aperture.

[0207] In some embodiments, at least one coil 61 and at least one magnet 62 are disposed between the first portion 5a and the second portion 5b.

[0208] In one implementation, there are two coils 61, and the two coils 61 are as follows: Figure 14 The coils 61 are arranged circumferentially opposite each other as shown in the first part 5a. Correspondingly, two magnets 62 are also provided, and the positions of the two magnets 62 correspond one-to-one with the positions of the two coils 61.

[0209] In some embodiments, the magnet 62 has a strip-shaped structure. Compared to a ring structure, the gap between the magnet 62 and the coil 61 is smaller, resulting in a stronger magnetic field. This helps to further reduce the current in the coil 61 when the rotating ring rotates, thereby reducing the power consumption of the variable aperture.

[0210] In some embodiments, the drive structure 6 further includes a magnetic sheet 63 disposed on the outer wall surface of the magnet 62 to enhance the magnetic field strength.

[0211] Figure 15 for Figure 8a The base 3a shown and Figure 13 The diagram shows the assembly of electrical connection structure 5. Figure 15 As shown, the second part 5b is disposed on the lower end face 3a2 of the base 3a. One end of the flexible connecting part 5c is fixedly connected to the second part 5b, and the other end extends from the gap of the side frame 3b into the first gap 9 and is fixedly connected to the first part 5a disposed in the receiving cavity 3d.

[0212] In some embodiments, a receiving groove 3a3 for inserting the second part 5b is provided on the lower end face 3a2 of the base 3a. In this way, the second part 5b is inserted into the receiving groove 3a3, which prevents the second part 5b from being exposed outside the base 3a, thus protecting the second part 5b and enabling the thickness reduction design of the variable aperture 301.

[0213] Figure 16 for Figure 6 The diagram shows a BB cross-section of the variable aperture. Figure 17 for Figure 7 The diagram shows the assembly of the rotating ring 2, electrical connection structure 5, and drive structure 6 in the variable aperture 301. (Together...) Figure 16 and Figure 17The rotating ring 2 is located on the side of the first part 5a of the electrical connection structure 5 away from the coil 61. The coil 61 is fixed on the first surface 2a, and the axis d-d' of the coil 61 is parallel to the axis e-e' of the aperture 4. The magnet 62 is positioned opposite the coil 61, and the magnet 62 is located on the side of the coil 61 away from the first surface 2a. The coil 61 and the first surface 2a can be fixed by adhesive bonding. The rotating ring 2, the first part 5a, the coil 61, and the magnet 62 are arranged sequentially along the axial direction of the rotating ring. When the coil 61 is energized, a Lorentz force is generated in the tangential direction of the rotating ring 2. Under the action of the Lorentz force, the rotating ring 2, the first part 5a, and the coil 61 rotate circumferentially along the rotating ring 2.

[0214] Please return to the previous page. Figure 9a and Figure 9b The rotating ring 2 includes a body portion 2c. A boss 23 is provided on the outer ring surface of the body portion 2c. A cavity 23a is formed on the side of the boss 23 facing the base 3a. A second notch 33 is formed on the side frame 3b opposite to the cavity 23a. When the rotating ring 2 is assembled onto the housing 3, the cavity 23a and the second notch 33 together form a receiving space 91 for installing the drive structure 6.

[0215] Please continue reading Figure 16 and Figure 17 The coil 61 of the drive structure 6 is inserted into the cavity 23a of the boss 23. The magnet 62 is disposed in the receiving space 91 and is fixedly connected to the receiving space 91. The fixed connection between the magnet 62 and the receiving space 91 can be by adhesive bonding.

[0216] In one embodiment, the magnet 62 can be connected to the bottom surface of the receiving space 91 by means of double-sided tape or adhesive.

[0217] In another embodiment, a magnetic conductive sheet 63 may be provided between the magnet 62 and the receiving space 91. The magnet 62 and the magnetic conductive sheet 63, as well as the magnetic conductive sheet 63 and the receiving space 91, can be connected together by using double-sided adhesive or dispensing adhesive.

[0218] Please continue reading Figure 17 In some embodiments, the drive structure 6, coil 61, and magnet 62 have a second gap 64 along the axial direction of the rotating ring 2. A third gap 65 exists between magnet 62 and the second portion 5b, the third gap 65 being used to mount the base 3a.

[0219] Table 2 shows the temperature of the variable aperture inner coil and each lens provided in the embodiments of this application.

[0220] Table 2

[0221]

[0222] For example, the optical lens includes seven lenses, arranged sequentially along the axis of the rotating ring: lens one, lens two, lens three, lens four, lens five, lens six, and lens seven. Lens one is closer to the rotating ring than lens seven. The temperature of lenses one through seven gradually increases. In this embodiment, the coil is connected to the rotating ring, and the axis of the coil is parallel to the axis of the rotating ring, thus being closer to the lower-temperature lens one. In this way, the thermal effect generated by the coil has a smaller impact on the higher-temperature lens (such as lens seven), which helps to reduce the impact of thermal effects.

[0223] Figure 18 for Figure 4b The diagram shows the structure of the focusing motor 303 within the camera module 130. Please refer to [link / reference]. Figure 4b and Figure 18 The focusing motor 303 includes an annular carrier 3031, a base 3032, and a drive assembly 3033, with the optical lens fixed inside the annular carrier 3031.

[0224] Figure 19 for Figure 18 The CC cross-sectional view of the focusing motor 303 is shown. (Together) Figure 18 and Figure 19 The drive assembly 3033 is connected between the annular carrier 3031 and the base 3032. The drive assembly 3033 is used to drive the annular carrier 3031, the optical lens 302 and the variable aperture 301 to move together relative to the base 3032. The drive assembly 3033 includes a third coil 3033a and a third magnet 3033b. The third coil 3033a is disposed on the outer wall surface of the annular carrier 3031. Along the radial direction of the annular carrier 3031, the third coil 3033a and the third magnet 3033b are disposed opposite to each other, and the third magnet 3033b is disposed on the side of the third coil 3033a away from the annular carrier 3031.

[0225] In the camera module 130, the third coil 3033a and the third magnet 3033b are arranged opposite each other along the radial direction of the annular carrier 3031. When the third coil 3033a is energized, a Lorentz force is generated along the axial direction of the annular carrier 3031. The Lorentz force along the axial direction of the annular carrier 3031 drives the annular carrier 3031 to move up and down along the axial direction of the annular carrier 3031, thereby realizing the movement of the annular carrier 3031, the optical lens and the variable aperture together relative to the base 3032.

[0226] Figure 20 for Figure 18 The annular carrier 3031 inside the focusing motor 303 shown is... Figure 13 The diagram shows the assembly of the electrical connection structure 5 in the variable aperture 301. Please refer to [link / reference needed]. Figure 20In some embodiments, the second part 5b of the electrical connection structure 5 in the variable aperture 301 is electrically connected to the third coil 3033a by connecting to a conductor disposed in the annular carrier 3031.

[0227] Please see Figure 14 and Figure 20 The first part 5a can energize the first coil 61 to realize the rotation of the rotating ring 2 in the variable aperture 301, thereby adjusting the aperture diameter and realizing the function of the variable aperture 301. The first part 5a transmits current to the second part 5b through the flexible connection part 5b, and the second part 5b then transmits current to the third coil 3033a, so as to realize the up and down movement of the annular carrier 3031 along the axial direction of the annular carrier 3031, thereby realizing the movement of the annular carrier 3031, the optical lens and the variable aperture 301 together relative to the base 3032.

[0228] Figure 21 This is a schematic diagram of the internal drive structure 6 of the variable aperture 301 and the internal drive assembly 3033 of the focus motor 303. Please refer to [link / reference]. Figure 19 and Figure 21 In the focusing motor 303, the third coil 3033a and the third magnet 3033b are arranged radially opposite each other along the annular carrier 3031, while in the variable aperture 301, the first magnet 62a and the first coil are arranged axially opposite each other along the rotating ring 2. Because the radial direction of the annular carrier 3031 and the axial direction of the rotating ring 2 are perpendicular to each other, the magnetic field direction generated by the third coil 3033a after being energized is perpendicular to the magnetic field direction generated by the first coil 61a after being energized. Therefore, the mutual influence between the magnetic field generated in the variable aperture 301 and the magnetic field generated in the focusing motor 303 is reduced.

[0229] Table 3 shows the magnetic attraction values ​​in the X, Y, and Z directions for the variable aperture and focusing motor provided in the embodiments of this application, as well as the attached... Figure 1a and Figure 1b The technical solution shown has magnetic attraction values ​​in the X, Y, and Z directions, and the ratio between the two values.

[0230] Table 3

[0231]

[0232] As shown in Table 3, based on the magnetic simulation results, the magnetic attraction forces in the Y and Z directions of the variable aperture and focusing motor provided in this embodiment are only slightly less than those in the auxiliary embodiment. Figure 1a and Figure 1b The improvement effect is significant, with the technical solution shown being within 5%. The variable aperture and focusing motor provided in this application embodiment can significantly reduce the problems of insufficient accuracy and thrust caused by magnetic interference.

[0233] In some embodiments, the first part 5a and the second part 5b are both annular structures; the axial directions of the first part 5a and the second part 5b are both parallel to the axial direction of the rotating ring 2; the first part 5a is disposed on the side of the first coil 61a away from the first magnet 62a; the second part 5b is disposed on the side of the first magnet 62a away from the first coil 61a, and the outer annular surface of the second part 5b is also formed with a connecting terminal, which is electrically connected to the third coil 3033a.

[0234] In some embodiments, the variable aperture 301 further includes: a second magnet 62b and a second coil 61b, arranged opposite to each other along the axial direction of the variable aperture 301; the drive assembly 3033 further includes a fourth coil 3033c and a fourth magnet 3033d, arranged opposite to each other along the radial direction of the annular carrier 3031; the first coil 61a, the second coil 61b, the third coil 3033a, and the fourth coil 3033c are arranged alternately along the circumference of the annular carrier 3031.

[0235] In some embodiments, the first coil 61a, the second coil 61b, the third coil 3033a, and the fourth coil 3033c are arranged in a 90° circular array along the circumference of the annular carrier 3031.

[0236] In some embodiments, the drive assembly 3033 inside the focusing motor 303 may include a plurality of third coils 3033a and a plurality of third magnets 3033b. This application does not limit the number of coils and magnets in the focusing motor 303.

[0237] 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.

[0238] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A variable aperture, characterized in that, include: A housing, the housing including a side frame and a base, the side frame being disposed on one side of the base, the base having a through hole; A rotating ring is rotatably connected to the base; Multiple blades are located on the side of the rotating ring away from the base. The multiple blades are arranged in a ring and together surround an aperture. The aperture is opposite to the through hole. Each blade is rotatably connected to the base and slidably connected to the rotating ring. The position where the blade is rotatably connected to the base is located between the position where the blade is slidably connected to the rotating ring and the aperture hole; A driving structure is connected between the rotating ring and the base. The driving structure is used to drive the rotating ring to rotate relative to the base, so as to drive the plurality of blades to rotate relative to the base and slide relative to the rotating ring. The driving structure includes at least one magnet and at least one coil; Along the axial direction of the rotating ring, the rotating ring has opposing first and second surfaces; at least one coil is fixed on the first surface, and the axis of the coil is parallel to the axis of the aperture; the magnet is disposed opposite to the coil, and the magnet is located on the side of the coil away from the first surface; An electrical connection structure includes a first part, a second part, and a flexible connection part, wherein the first part and the second part are connected through the flexible connection part; the first part is electrically connected to the at least one coil and is rotatable with the rotating ring; the second part is used for electrical connection with an external device of the variable aperture.

2. The variable aperture according to claim 1, characterized in that, The blade has a rotating hole, and the base has a first fixed post. The blade passes through the rotating hole and is mounted on the first fixed post, and can rotate around the first fixed post so that the blade is rotatably connected to the base.

3. The variable aperture according to claim 2, characterized in that, The blade has a guide hole, and the rotating ring has a second fixed post. The blade passes through the guide hole and is mounted on the second fixed post, and can slide relative to the second fixed post, so that the blade is slidably connected to the rotating ring.

4. The variable aperture according to claim 3, characterized in that, The guide hole is a strip hole; During the process of the plurality of blades rotating relative to the base and sliding relative to the rotating ring, the larger the aperture of the aperture hole, the smaller the angle between the axis of the guide hole along its own length direction and the first straight line; wherein, the first straight line is the line connecting the center of the aperture hole and the center of the first fixed post.

5. The variable aperture according to claim 1, characterized in that, The magnet has a strip-shaped structure.

6. The variable aperture according to claim 1, characterized in that, The at least one coil includes a first coil and a second coil, and the at least one magnet includes a first magnet and a second magnet; The first coil and the second coil are arranged at intervals along the circumference of the rotating ring; The first magnet is opposite to the first coil, and the second magnet is opposite to the second coil.

7. The variable aperture according to claim 1, characterized in that, The rotating ring includes an annular body portion and a boss formed on the outer annular surface of the body portion. The boss has a recessed cavity on the side facing the base, and the coil is disposed in the recessed cavity.

8. The variable aperture according to claim 1, characterized in that, Both the first part and the second part have a ring structure; The axial directions of the first and second portions are parallel to the axial direction of the rotating ring; The first part is disposed on the side of the coil away from the magnet and is electrically connected to the coil; The second part is disposed on the side of the magnet away from the coil.

9. The variable aperture according to claim 1, characterized in that, The outer ring surface of the second part is also formed with at least one connection terminal, which is used for electrical connection with an external device of the variable aperture.

10. The variable aperture according to any one of claims 1-9, characterized in that, The base includes: Main body and protruding parts; The bottom of the protrusion is fixed to the main body, and the through hole penetrates the protrusion and the main body; The rotating ring is sleeved on the outer periphery of the protrusion and is rotatably connected to the protrusion and / or the main body through a rotating structure.

11. The variable aperture according to claim 10, characterized in that, The rotating structure includes: a limiting groove and a guide post inserted into the limiting groove, wherein the extending direction of the limiting groove is consistent with the circumferential direction of the rotating ring; One of the limiting groove and the guide post is disposed on the rotating ring, and the other is disposed on the main body.

12. An electronic device, characterized in that, include: Optical lens; Camera module, including variable aperture; The variable aperture includes: The housing includes a side frame and a base, the side frame being disposed on one side of the base, and the base having a through hole; the optical lens is disposed in the through hole of the base, and the variable aperture is located on the light-incident side of the optical lens; A rotating ring is rotatably connected to the base; Multiple blades are located on the side of the rotating ring away from the base. The multiple blades are arranged in a ring and together surround an aperture. The aperture is opposite to the through hole. Each blade is rotatably connected to the base and slidably connected to the rotating ring. The position where the blade is rotatably connected to the base is between the position where the blade is slidably connected to the rotating ring and the aperture. A driving structure is connected between the rotating ring and the base. The driving structure drives the rotating ring to rotate relative to the base, thereby causing the plurality of blades to rotate relative to the base and slide relative to the rotating ring. The driving structure includes at least one magnet and at least one coil. Along the axial direction of the rotating ring, the rotating ring has opposing first and second surfaces. The at least one coil is fixed on the first surface, and the axis of the coil is parallel to the axis of the aperture. The magnet is disposed opposite to the coil, and the magnet is located on the side of the coil away from the first surface. An electrical connection structure includes a first part, a second part, and a flexible connection part, wherein the first part and the second part are connected through the flexible connection part; the first part is electrically connected to the at least one coil and is rotatable with the rotating ring; the second part is used for electrical connection with an external device of the variable aperture. A computing control unit is electrically connected to the camera module.

13. The electronic device according to claim 12, characterized in that, The blade has a rotating hole, and the base has a first fixed post. The blade passes through the rotating hole and is mounted on the first fixed post, and can rotate around the first fixed post so that the blade is rotatably connected to the base.

14. The electronic device according to claim 13, characterized in that, The blade has a guide hole, and the rotating ring has a second fixed post. The blade passes through the guide hole and is mounted on the second fixed post, and can slide relative to the second fixed post, so that the blade is slidably connected to the rotating ring.

15. The electronic device according to claim 14, characterized in that, The guide hole is a strip hole; During the process of the plurality of blades rotating relative to the base and sliding relative to the rotating ring, the larger the aperture of the aperture hole, the smaller the angle between the axis of the guide hole along its own length direction and the first straight line; wherein, the first straight line is the line connecting the center of the aperture hole and the center of the first fixed post.

16. The electronic device according to claim 12, characterized in that, The magnet has a strip-shaped structure.

17. The electronic device according to claim 12, characterized in that, The at least one coil includes a first coil and a second coil, and the at least one magnet includes a first magnet and a second magnet; The first coil and the second coil are arranged at intervals along the circumference of the rotating ring; The first magnet is opposite to the first coil, and the second magnet is opposite to the second coil.

18. The electronic device according to claim 12, characterized in that, The rotating ring includes an annular body portion and a boss formed on the outer annular surface of the body portion. The boss has a recessed cavity on the side facing the base, and the coil is disposed in the recessed cavity.

19. The electronic device according to claim 12, characterized in that, Both the first part and the second part have a ring structure; The axial directions of the first and second portions are parallel to the axial direction of the rotating ring; The first part is disposed on the side of the coil away from the magnet and is electrically connected to the coil; The second part is disposed on the side of the magnet away from the coil.

20. The electronic device according to claim 12, characterized in that, The outer ring surface of the second part is also formed with at least one connection terminal, which is used for electrical connection with an external device of the variable aperture.

21. The electronic device according to any one of claims 12-20, characterized in that, The base includes: Main body and protruding parts; The bottom of the protrusion is fixed to the main body, and the through hole penetrates the protrusion and the main body; The rotating ring is sleeved on the outer periphery of the protrusion and is rotatably connected to the protrusion and / or the main body through a rotating structure.

22. The electronic device according to claim 21, characterized in that, The rotating structure includes: a limiting groove and a guide post inserted into the limiting groove, wherein the extending direction of the limiting groove is consistent with the circumferential direction of the rotating ring; One of the limiting groove and the guide post is disposed on the rotating ring, and the other is disposed on the main body.

23. An electronic device, characterized in that, include: Computational control unit, The variable aperture as described in any one of claims 1-11; The computing control unit is electrically connected to the variable aperture.

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