Camera module and electronic device

Abstract

Embodiments of the present application provide a camera module and an electronic device, the camera module comprising: a base, a first support, a second support, a lens assembly, a variable aperture, a first driving mechanism, a second driving mechanism and a third driving mechanism; the first support and the second support are both arranged on the base, and the second support is connected to the base through an SMA wire; the first support is of a ring structure, forming a hollow cavity, the lens assembly is arranged in the cavity and fixed on the first support, and an optical axis of the lens assembly is parallel to a central axis of the cavity; the variable aperture is arranged on a side of the lens assembly away from the base; the second support is sleeved on an outer side of the first support; the first driving mechanism drives the first support and the lens assembly to move along the optical axis of the lens assembly; the second driving mechanism connects the base and the second support, and the second driving mechanism drives the first support, the second support and the lens assembly to move along a plane perpendicular to the optical axis of the lens assembly.

Description

[0001] The present application claims priority to the Chinese patent application No. 202410211716.X, filed on February 26, 2024, and entitled “Camera Module and Electronic Device”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of semiconductors, and in particular to a camera module and an electronic device. BACKGROUND

[0003] Currently, electronic devices such as mobile phones, tablets, personal computers (PCs), etc. are generally provided with a camera module for photographing / video recording. In order to make the photographed / video recorded image clear, automatic focusing (AF) and optical image stabilization (OIS) are required. The camera module includes an optical lens assembly and a base, and a camera motor is used to drive the optical lens assembly to move relative to the base to achieve automatic focusing or optical image stabilization.

[0004] With the popularity of electronic devices, users have increasingly high requirements for the aesthetics of electronic devices, which makes electronic devices gradually develop in the direction of thinness.

[0005] However, in order to make the electronic device have better shooting function, the stroke of the optical lens assembly is increased, which affects the thickness of the electronic device. SUMMARY

[0006] The present application provides a camera module and an electronic device, which solves the problem that a long-stroke camera module affects the thickness of an electronic device.

[0007] To achieve the above-mentioned purpose, embodiments of the present application adopt the following technical solutions:

[0008] In an aspect of the present application, a camera module is provided, which can be applied in an electronic device having a photographing and video shooting function. The camera module comprises a base, a first support, a second support, a lens assembly, a variable aperture, a first driving mechanism, a second driving mechanism and a third driving mechanism. The first support and the second support are arranged on the base, and the second support is connected to the base by an SMA wire. The first support has a ring structure and forms a hollow cavity, and the lens assembly is arranged in the cavity and fixed to the first support. An optical axis of the lens assembly is parallel to a central axis of the cavity. The variable aperture is arranged on a side of the lens assembly away from the base, and the third driving mechanism is connected to the variable aperture. The second support is sleeved outside the first support. The first driving mechanism connects the first support and the second support, and drives the first support and the lens assembly to move along the optical axis of the lens assembly. The second driving mechanism connects the base and the second support, and drives the first support, the second support and the lens assembly to move along a plane perpendicular to the optical axis of the lens assembly. The second driving mechanism comprises an SMA wire, and the second support is connected to the base by the SMA wire. Thus, the second driving mechanism of the camera module is an SMA driving mechanism, which has a simple structure and occupies a small space, can compress the volume of the camera driving motor, and realizes the miniaturization of the camera module.

[0009] In an alternative embodiment, the lens assembly comprises a first side and a second side, and the curvature of the first side is smaller than that of the second side. Thus, the circular lens assembly can be cut to form the first side, and the cut lens assembly occupies a smaller space, further realizing the miniaturization of the camera module.

[0010] In an alternative embodiment, the first side is a plane, and the second side is an arc surface. Thus, the space occupied by the lens assembly can be further reduced.

[0011] In an alternative embodiment, the shape of the first support is adapted to the shape of the lens assembly. Thus, the space occupied by the first support can be reduced, further realizing the miniaturization of the camera module.

[0012] In an alternative embodiment, the camera module further comprises an elastic member arranged between the base and the second support, the elastic member being configured to provide an elastic force for moving the second support and the lens assembly from the first position to the second position, the first position to the second position being along the optical axis of the lens assembly, the first position being closer to the base than the second position, the first driving mechanism being configured to drive the second support and the lens assembly to move along the optical axis of the lens assembly between the second position and a third position, the second position being between the first position and the third position. Thus, the stroke of the first support carrying the lens assembly includes not only the focusing stroke between the second position and the third position, but also the elastic member reset stroke between the first position and the second position, i.e. the first support carrying the lens assembly moves between the first position and the third position, the stroke of the lens assembly is larger than the focusing stroke between the second position and the third position.

[0013] In an alternative embodiment, the elastic member is fixed to the first support, the second support contacts the elastic member when the second support and the lens assembly are in the first position, the elastic member is deformed to generate the elastic force from the first position to the second position. Thus, the elastic member is arranged between the first support and the base, and is compressed when the first support and the lens assembly are in the first position to generate the elastic force.

[0014] In an alternative embodiment, the second support is separated from the elastic member when the second support and the lens assembly move between the second position and the third position. Thus, when the first support and the lens assembly are driven by the focusing driving mechanism to move along the optical axis of the lens assembly to achieve auto-focusing, the elastic member does not generate the elastic force to the first support and the lens assembly.

[0015] In an alternative embodiment, the elastic member comprises a first lug, a second lug, and an elastic segment connected between the first lug and the second lug, the first lug and the second lug are fixed to the first support, and the connecting end extends to the side of the second support close to the base.

[0016] In an alternative embodiment, the camera module comprises a slide rod connected to the second support, and a slide groove arranged on the first support, the slide rod and the slide groove being in sliding connection. Thus, the axial direction of the first slide rod is consistent with the optical axis direction of the lens assembly, the first slide rod is fixed relative to the first support, and the first support and the first slide rod are in sliding connection; when the first support and the lens assembly move between the first position and the third position, the first support slides along the axial direction of the first slide rod.

[0017] Due to the sliding fit between the first support and the first slide rod, the first support carrying the lens assembly can slide along the first slide rod, so that even if the stroke of the first support and the lens assembly is large or the driving force for moving the first support and the lens assembly is large, the moving stability of the lens assembly and the first support is high, and the risk of deviation of the first support and the lens assembly from the optical axis is reduced.

[0018] In an optional embodiment, the camera module further comprises a first magnetic component configured to generate an attractive force between the first support and the slide rod. In this way, when the first support and the lens assembly move along the optical axis of the lens assembly, the first support slides along the axial direction of the first slide rod under the attraction of the attractive force.

[0019] In order to enable the first support to stably slide along the slide rod when the first support carrying the lens assembly moves along the optical axis direction of the lens assembly relative to the first support, in this embodiment, a first magnetic component is arranged to generate an attractive force between the first support and the slide rod, and the first support slides along the slide rod under the action of the attractive force.

[0020] In an optional embodiment, the first magnetic component comprises a magnet fixed on the first support and arranged close to the first slide rod, and an attractive force is generated between the magnet and the first slide rod.

[0021] In order to enable the first support to stably slide along the slide rod when the first support carrying the lens assembly moves along the optical axis direction of the lens assembly relative to the first support, in the embodiment, a magnet is arranged to generate an attractive force (which can be referred to as a shaft holding force) between the magnet and the slide rod, so that the first support can hold the slide rod tightly and stably slide along the slide rod during movement, thereby improving the moving stability.

[0022] In an optional embodiment, the first driving mechanism comprises a magnet and a coil opposite to the magnet, one of the magnet and the coil is arranged on the second support, and the other is arranged on the first support. In this way, electromagnetic induction is generated between the coil and the magnet in the focusing driving mechanism.

[0023] In an optional embodiment, one of the first magnet and the first coil is arranged on the first support, and the other is arranged on the first support; the first slide rod and the magnet are arranged on the side of the first magnet, and the magnet is away from the first magnet compared with the first slide rod. In this way, the magnets can generate magnetic attraction force between them, and in order to weaken the influence between electromagnetic induction and magnetic attraction force, in the example, the magnet is arranged away from the magnet in the driving mechanism compared with the first slide rod.

[0024] In an alternative embodiment, the focusing driving mechanism comprises a first magnet and a first coil facing the first magnet, and a second magnet and a second coil facing the second magnet, the first magnet and the second magnet are symmetrically arranged about the optical axis of the lens assembly; the camera driving motor further comprises a second sliding rod; the first sliding rod is arranged beside the first magnet, and the second sliding rod is arranged beside the second magnet, the first sliding rod and the second sliding rod are symmetrically arranged about the optical axis of the lens assembly.

[0025] In an alternative embodiment, the first support has a sliding groove in sliding cooperation with the first sliding rod, the sliding rod is in contact with the sliding groove when the first support slides along the axial direction of the first sliding rod.

[0026] The contact between the sliding rod and the sliding groove can make the first support stably slide along the sliding rod.

[0027] In an alternative embodiment, the camera module comprises a first groove, a second groove and a plurality of balls, the first groove is arranged on the base, the second groove is arranged on the second support, the first groove and the second groove are oppositely arranged, and the plurality of balls are arranged in the area surrounded by the first groove and the second groove. In this way, the plurality of balls are arranged between the first support and the base, and the first support slides along the plurality of balls when the first support and the first support are moved by the anti-shake driving mechanism along the plane perpendicular to the optical axis.

[0028] The plurality of balls arranged between the first support and the base can reduce the friction coefficient between the first support and the base, and improve the camera quality.

[0029] In an alternative embodiment, the plurality of balls comprises a first group of balls, a second group of balls and a third group of balls, any one of the first group of balls, the second group of balls and the third group of balls comprises a plurality of balls, and the first group of balls, the second group of balls and the third group of balls are arranged at intervals along the circumference of the base.

[0030] The connecting lines of the first group of balls, the second group of balls and the third group of balls form a triangle, so that on the basis of reducing the friction coefficient of the movement of the first support, the stability of the movement of the first support can also be improved by using the stability of the triangle.

[0031] In an alternative embodiment, the camera module further comprises a second magnetic component arranged between the base and the second support, the second support and the balls are in contact under the magnetic attraction of the second magnetic component, and the second support and the base have a gap in the state that the second support and the balls are in contact. In this way, by arranging the second magnetic component between the base and the first support, when the first support moves relative to the base, the risk of the first support tilting under its own gravity is reduced under the magnetic attraction of the second magnetic component.

[0032] In an optional embodiment, the second magnetic component includes a magnet and a magnetic sheet, one of the magnet and the magnetic sheet is arranged on the base, and the other is arranged on the first support.

[0033] For example, a mounting groove can be arranged on the base, and the magnet is arranged in the mounting groove, so as to compress the thickness dimension of the entire camera driving motor.

[0034] In an optional embodiment, the plurality of balls includes a plurality of groups of balls, the plurality of groups of balls are arranged at intervals along the circumference of the base, and the second magnetic component is arranged between adjacent two groups of balls.

[0035] In an optional embodiment, the second driving mechanism includes a movable jaw and a fixed jaw, the SMA wire is connected between the movable jaw and the fixed jaw, the movable jaw is fixed to the first support, and the fixed jaw is fixed to the base. Each group of driving units includes one movable jaw, one fixed jaw, and one SMA wire, and one SMA wire is connected between one movable jaw and one fixed jaw. Along the circumference of the base, the movable jaws of adjacent two groups of driving units are arranged close to each other and connected together, and the fixed jaws of adjacent two groups of driving units are arranged close to each other and separated.

[0036] In an optional embodiment, the anti-shake driving mechanism includes four groups of driving units, so that the driving mechanism is a four-wire SMA driving mechanism.

[0037] In an optional embodiment, the second support includes a main body portion having a cavity therein, the first support is arranged in the cavity, and the first driving mechanism is arranged between the main body portion and the first support; and an extension portion arranged on a side of the main body portion close to the base, the extension portion extends along the outer edge of the main body portion in a direction away from the main body portion, there is a gap between the extension portion and the base, and the second driving mechanism is arranged in the gap. In this way, there is some space on the periphery of the main body portion, and other structural members in the camera module can be arranged in the space.

[0038] In an optional embodiment, the camera module further includes a module circuit board and an electrical connection structure; the first driving mechanism, the second driving mechanism, and the third driving mechanism are all electrically connected to the circuit board of the camera driving motor through the electrical connection structure.

[0039] In an alternative embodiment, the electrical connection structure comprises: a first FPC disposed on the second bracket, the first FPC being electrically connected to the module circuit board; a first conductive lead disposed on the second bracket, a first end of the first conductive lead being electrically connected to the first driving mechanism, a second end of the first conductive lead being electrically connected to the first FPC; a first spring arm, a first end of the first spring arm being connected to the second bracket, a second end of the first spring arm being fixed to the base; a second conductive lead disposed on the base, the second driving mechanism being electrically connected to the module circuit board through the second conductive lead; a grounding lead disposed on the base, one end of the grounding lead being electrically connected to the second end of the first spring arm, the other end of the grounding lead being electrically connected to the module circuit board of the camera module; a second spring arm, a first end of the second spring arm being electrically connected to the variable aperture, a second end of the second spring arm being fixed to the first bracket.

[0040] In an alternative embodiment, the module circuit board is provided with a first driving chip, the first driving mechanism is electrically connected to the first FPC through the first conductive lead, and is electrically connected to the first driving chip through the first FPC.

[0041] In an alternative embodiment, the second driving mechanism is electrically connected to the first driving chip through the second conductive lead.

[0042] In an alternative embodiment, the camera module further comprises: a position sensor for detecting the position of the second bracket relative to the base, the position sensor being electrically connected to the first driving chip through the first FPC. In this way, the sliding position of the first bracket can be determined by using the position sensor to detect the focusing position.

[0043] In an alternative embodiment, the electrical connection structure further comprises: a third conductive lead disposed in the second bracket, the variable aperture comprising: a second driving chip and a second FPC, the third driving mechanism being electrically connected to the second driving chip, the second driving chip being electrically connected to the second FPC, a first end of the second spring arm being connected to the second FPC, a second end of the second spring arm being electrically connected to the first FPC through the third conductive lead, so that the second driving chip is electrically connected to the module circuit board through the second FPC, the second spring arm, the third conductive lead and the first FPC.

[0044] In an alternative embodiment, the variable aperture further comprises: a fixed seat having a first light transmission hole; a rotating support located in the fixed seat and rotationally connected with the fixed seat; the rotating support is arranged around the periphery of the first light transmission hole; a plurality of blades arranged on the rotating support, the blades are slidingly connected with the rotating support and rotationally connected with the fixed seat; the plurality of blades are annularly distributed to surround an aperture hole, the aperture hole is in communication with the first light transmission hole; the third driving mechanism comprises: a magnet assembly arranged on the side of the rotating support away from the blades and connected with the rotating support; a coil arranged on the side of the magnet assembly facing the fixed seat.

[0045] In an alternative embodiment, the variable aperture comprises a fixed seat, a rotating support, a plurality of blades and at least one third driving mechanism. The third driving mechanism comprises a magnet assembly and a coil. The fixed seat has a first light transmission hole. The rotating support is located in the fixed seat and rotationally connected with the fixed seat. The rotating support is arranged around the periphery of the first light transmission hole. The plurality of blades are arranged on the rotating support, the blades are slidingly connected with the rotating support and rotationally connected with the fixed seat. The plurality of blades are annularly distributed to surround an aperture hole, the aperture hole is in communication with the first light transmission hole. In the third driving mechanism, the magnet assembly is arranged on the side of the rotating support away from the blades and connected with the rotating support. The coil is arranged on the side of the magnet assembly facing the fixed seat.

[0046] In summary, the rotating support is located in the fixed seat and rotationally connected with the fixed seat. In addition, the blades are slidingly connected with the rotating support and rotationally connected with the fixed seat. In this case, when the rotating support rotates relative to the fixed seat, it can drive the blades to slide relative to the rotating support while also rotating the blades relative to the fixed seat. Based on this, the aperture size of the aperture hole surrounded by the plurality of annularly distributed blades can be changed with the rotation of the rotating support, achieving the purpose of adjusting the aperture size of the aperture hole. On this basis, in order to drive the rotating support to rotate, as known from the above, the third driving mechanism comprises a magnet assembly and a coil. The magnet assembly is arranged on the side of the rotating support away from the blades. The coil is arranged on the side of the magnet assembly facing the fixed seat. In this case, by energizing the coil to generate a magnetic field between the coil and the magnet assembly, the magnet assembly arranged on the rotor (i.e., the rotating support) can be driven to move relative to the coil under the action of the magnetic field, and the rotating support and the fixed seat are rotationally connected, so that the rotating support can be driven to rotate relative to the fixed seat by the magnet assembly.

[0047] In this way, the variable aperture provided by the embodiment of the present application can be a moving magnet type variable aperture, because the magnet assembly is arranged on the rotating support as a rotor. Therefore, the coil that needs to be powered does not need to be arranged on the rotor (i.e. a moving coil type variable aperture), so that the electrical connection structure of the variable aperture can be simplified. In addition, the rotating support as a rotor is rotatably connected with the fixed seat as a stator, so that the rotating support can drive the plurality of blades to move to adjust the aperture of the aperture hole, the number of components for adjusting the aperture of the variable aperture is reduced, and the structure of the variable aperture is simplified. On this basis, the rotating support is arranged in the fixed seat, so that the thickness of the variable aperture can be reduced. In addition, the magnet assembly is arranged on the side of the rotating support away from the blades, and the coil is arranged on the side of the magnet assembly facing the fixed seat. Compared with the scheme in which the magnet and the coil are arranged on the periphery of the rotating support, the area of the variable aperture in the transverse direction (perpendicular to the optical axis of the variable aperture) can be reduced, so that the size of the variable aperture can be reduced. In this case, the structure of the variable aperture is simplified, the thickness and the transverse area of the variable aperture are reduced, so that the miniaturization design of the entire camera module is facilitated, and the integration of the electronic device can be improved.

[0048] In addition, when the image sensor in the camera module with the variable aperture has a large target surface, the size of the lens assembly of the camera module in the optical axis direction is large. Therefore, for the image sensor with a large target surface, the size of the entire camera module can be effectively reduced by using the variable aperture provided by the embodiment of the present application.

[0049] In an optional embodiment, the magnet assembly can include a plurality of magnets, and the plurality of magnets can have a Halbach array structure. The surface of the magnet assembly having the Halbach array structure facing the coil has a large magnetic field strength, so that a small current can drive the rotating support connected with the magnet assembly, and the power consumption can be reduced.

[0050] In an alternative embodiment, the second FPC is arranged on the side of the fixing base away from the blade, and the second FPC is connected to the fixing base. The coil is arranged on the side of the second FPC facing the rotating support through the fixing base, and the coil is connected to the second FPC. In this way, by arranging the second FPC on the side of the fixing base away from the blade, the second FPC can be arranged in a flat plate structure, thereby simplifying the manufacturing process of the second FPC. In addition, the coil is arranged through the fixing base, so that the coil and the thickness overlap part of the thickness of the fixing base, thereby facilitating the reduction of the thickness of the variable aperture. In addition, the coil that needs to be powered is arranged on the side of the second FPC facing the rotating support, and the coil is connected to the second FPC, so that the coil is arranged opposite the magnet assembly, and the coil is directly powered through the metal grounding trace on the second FPC, thereby simplifying the electrical connection structure of the variable aperture.

[0051] In an alternative embodiment, the fixing base includes a first plastic part and a first metal support. The first metal support is embedded in the first plastic part, and the first metal support and the first plastic part are connected as a first integrated structure. In this way, the first integrated structure can be formed by embedding injection molding process. Since the fixing base has the first metal support, the mechanical strength of the fixing base can be increased, and the probability of damage to the fixing base can be reduced when the fixing base is impacted during reliability testing (rolling or drop testing, etc.) of the variable aperture and user use, thereby prolonging the service life of the product. In addition, the first metal support can be grounded to the FPC. For example, the first metal support and the copper leakage area on the FPC can be electrically connected by conductive glue to achieve grounding of the first metal support, thereby reducing electromagnetic interference.

[0052] In an alternative embodiment, the first plastic part has a first hollow area, and the first hollow area exposes part of the surface of the first metal support, and the surface is used to make a product identification code. In this way, the product identification code for representing product-related information can be directly prepared on the first metal support, without separately arranging a magnetic conductive sheet for making the product identification code, thereby achieving the purpose of simplifying the manufacturing process.

[0053] In an alternative embodiment, the coil is arranged on the fixing base and directly connected to the fixing base. The fixing base as a stator is in a static state relative to the rotating support during the aperture hole aperture change of the variable aperture. In this way, the coil arranged on the fixing base is in a static state relative to the magnet assembly arranged on the rotating support, so that the above-mentioned variable aperture is a moving magnet variable aperture.

[0054] In an alternative embodiment, the fixing base comprises a first plastic member, a first metal support, a metal ground trace, a metal signal trace, a metal ground terminal and a metal signal terminal. The first metal support, the metal ground trace and the metal signal trace are embedded in the first plastic member, and the metal signal trace, the metal ground trace, the first metal support and the first plastic member are connected to form a first integrated structure. As described above, the first integrated structure can be formed by embedding and injection molding. The technical effects of the first metal support are as described above and will not be repeated here. In addition, since the fixing base comprises the metal ground trace, the metal signal trace, the metal ground terminal and the metal signal terminal, the metal ground trace, the metal signal trace, the metal ground terminal and the metal signal terminal can replace the FPC. The metal ground terminal is connected to the metal ground trace, so that the first metal support can be electrically connected to the module circuit board through the metal ground trace and the metal ground terminal to achieve the grounding effect of the first metal support. In addition, the variable aperture can further comprise a second driving chip for controlling the rotating position of the rotating shaft support. The second driving chip is electrically connected to the metal signal trace. Since the metal signal terminal is connected to the metal signal trace, the second driving chip is electrically connected to the module circuit board through the metal signal terminal and the metal signal trace, so that the processor can transmit a control signal to the second driving chip through the module circuit board.

[0055] In an alternative embodiment, the fixing base comprises a bottom plate, a boss and a side plate. The boss is arranged on the bottom plate, and the first light transmission hole penetrates the boss and the bottom plate. The side plate is arranged on the bottom plate, and the side plate is arranged around the periphery of the boss. The side plate, the side wall of the boss and the bottom plate enclose the first mounting slot, and at least a part of the rotating support is located in the first mounting slot. In this way, the side plate, the side wall of the boss and the bottom plate enclosing the first mounting slot can arrange the rotating support in the fixing base, so that the thickness of the rotating support and the fixing base can be overlapped, achieving the purpose of reducing the thickness of the variable aperture.

[0056] In an alternative embodiment, the rotating support comprises a ring-shaped portion and a lug. The ring-shaped portion is located in the first mounting slot and is arranged around the periphery of the boss, and the ring-shaped portion is slidably connected to the blade. The lug is arranged on the side wall of the ring-shaped portion and is connected to the ring-shaped portion. The magnet assembly is arranged on the lug and is connected to the lug. The first opening is formed in the side plate and penetrates the side plate in a direction perpendicular to the bottom plate, and the first opening is in communication with the first mounting slot, and the lug is located in the first opening. The ring-shaped portion can be arranged in the first mounting slot as the main part of the rotating support and is slidably connected to the blade. In addition, the lug is embedded in the first opening in the side plate and is connected to the magnet assembly, so as to bear the magnet assembly.

[0057] In an alternative embodiment, the side wall of the first opening can have a stroke gap with the lug. Thus, the opening length of the first opening can be the rotation stroke of the rotation holder along the rotation direction of the rotation holder. When the rotation holder abuts against the side wall of the first opening, the rotation holder is rotated to the maximum stroke.

[0058] In an alternative embodiment, the third driving mechanism can further include a first magnetic conductive sheet, which can be arranged on the side of the bottom plate of the fixed seat facing the rotation holder, and the first magnetic conductive sheet is used to be attracted to the magnet assembly. The magnetic conductive sheet is also called the magnetic absorbing sheet, which has high magnetic conductivity, low resistivity, and small iron loss. Based on this, the first magnetic conductive sheet can be used to attract the magnet assembly along the thickness direction of the variable aperture. In addition, the vertical projection of the first opening on the lug side wall overlaps the vertical projection of the first magnetic conductive sheet on the lug side wall. As described above, the opening length of the first opening can be the rotation stroke of the rotation holder along the rotation direction of the rotation holder, so that the first magnetic conductive sheet can be arranged within the stroke range of the rotation holder when the vertical projection of the first opening on the lug side wall overlaps the vertical projection of the first magnetic conductive sheet on the lug side wall. In this way, when the rotation holder rotates, the first magnetic conductive sheet can be used to attract the magnet assembly along the thickness direction of the variable aperture, which can reduce the disengagement of the rotation holder from the fixed seat during the rotation of the camera module and improve the reliability of the variable aperture.

[0059] In addition, when the number, position, and spacing between the first magnetic conductive sheet and the magnet assembly are adjusted, the attraction force between the first magnetic conductive sheet and the magnet assembly can be adjusted. In this case, when the attraction force between all the first magnetic conductive sheets in the variable aperture and the magnet assembly can reach about 10 times the weight of the rotation holder and the magnet assembly, the friction between the rotation holder and the fixed seat can be increased. In this case, when the rotation holder rotates to drive the aperture hole formed by the movement of the plurality of blades to reach an aperture position, such as the maximum aperture position, the rotation holder is difficult to further rotate relative to the fixed seat due to the large friction between the rotation holder and the fixed seat, thereby terminating the power supply to the coil, so that the position of the rotation holder and the fixed seat is relatively fixed, achieving the purpose of aperture self-locking. In this way, when the user is shooting photos or videos in a fixed scene, and the aperture does not need to be changed, the aperture is self-locked and the coil is in a powered-off state, thereby achieving the purpose of reducing power consumption.

[0060] In an alternative embodiment, a portion of the bottom plate, which is the bottom of the first mounting slot, is provided with a second mounting slot, and the first magnetic conductive sheet is located in the second mounting slot. The second mounting slot is arranged at the end of the coil facing the boss. By providing the second mounting slot on the bottom plate, the first magnetic conductive sheet located in the second mounting slot can be embedded in the bottom plate of the fixed seat, so that the thickness of the first magnetic conductive sheet coincides with the thickness of the portion of the bottom plate, which is conducive to reducing the thickness of the variable aperture. In addition, by arranging the second mounting slot at the end of the coil facing the boss, the first magnetic conductive sheet located in the second mounting slot can be located at the end of the coil facing the boss, which is closer to the magnetic assembly.

[0061] In an alternative embodiment, the third driving mechanism includes two first magnetic conductive sheets, and the end of the coil facing the boss is located between the two first magnetic conductive sheets. In this way, by increasing the number of first magnetic conductive sheets, the attraction force between all the first magnetic conductive sheets and the magnetic assembly can be improved, thereby facilitating the purpose of automatically locking the aperture after the coil is powered off.

[0062] In an alternative embodiment, the side wall of the boss includes a first half-ring side wall and a second half-ring side wall connected together. In addition, the variable aperture further includes a second magnetic conductive sheet and a first rolling element. The second magnetic conductive sheet is arranged on the first half-ring side wall and is used to be attracted to the magnetic assembly. The vertical projection of the first opening on the first half-ring side wall overlaps the vertical projection of the first magnetic conductive sheet on the first half-ring side wall. The first rolling element is arranged between the rotating support and the bottom plate, and the first rolling element is located on the side where the second half-ring side wall is located. The rotating support and the fixed seat are in contact with the first rolling element, and the rotating support is rotatably connected to the fixed seat through the first rolling element.

[0063] In this way, since the second magnetic conductive sheet is arranged on the first half-ring side wall, when the second magnetic conductive sheet is attracted to the magnetic assembly, the rotating support will move towards the position of the second half-ring side wall of the fixed seat. Since the first rolling element is located on the side where the second half-ring side wall is located, the rotating support and the fixed seat can be in contact with the first rolling element, i.e., the first rolling element is in zero-fitting state with the rotating support and the fixed seat. In this case, when the rotating support is rotatably connected to the fixed seat through the first rolling element, since the rotating support and the fixed seat can be in contact with the first rolling element, the rotating support can always rest on the first rolling element during rotation, and the rotating support can rotate relative to the fixed seat, thereby improving the stability of the rotating support during rotation and the consistency of the rotating support when rotating to each angle, thereby improving the reliability of the product.

[0064] In an alternative embodiment, the first rolling element can include a ball or a roller. Alternatively, the first rolling element can include a plurality of balls or a plurality of rollers. Taking the case where the first rolling element includes a plurality of balls as an example, the plurality of balls can be arranged in the thickness direction of the variable aperture.

[0065] In an alternative embodiment, the variable aperture further comprises a second rolling member, which is arranged between the rotating support and the bottom plate and located at the side of the first half-ring side wall. The second rolling member and the rotating support have an adjustment gap H1 of 30-70 μm. As known from the above, when the second magnetic conducting sheet is attracted to the magnet assembly, the rotating support moves towards the position of the second half-ring side wall of the fixed seat. In this case, the second rolling member located at the side of the first half-ring side wall has the above-mentioned adjustment gap H1 with the rotating support. In this way, when the rotating support moves in the horizontal plane (perpendicular to the optical axis of the variable aperture) during the reliability test (rolling or drop test, etc.) of the variable aperture and the use of the user, the side of the rotating support close to the second rolling member can contact the second rolling member, so that the second rolling member limits the further displacement of the rotating support, reduces the displacement of the rotating support, and thus avoids the phenomenon that the rotating support pulls the plurality of blades connected with the rotating support by sliding when the rotating support moves greatly, and causes damage to the blades.

[0066] In an alternative embodiment, the second rolling member can comprise a ball or a roller. Alternatively, the second rolling member can comprise a plurality of balls or rollers. Taking the case that the second rolling member comprises a plurality of balls as an example, the plurality of balls can be arranged along the thickness direction of the variable aperture.

[0067] In an alternative embodiment, the variable aperture comprises two driving assemblies, two first rolling members and two second rolling members. The two driving assemblies are a first driving assembly and a second driving assembly. The first driving assembly is arranged at the side of the first half-ring side wall, and the second driving assembly is arranged at the side of the second half-ring side wall. The first driving assembly is located between the two second rolling members. The second driving assembly is located between the two first rolling members. In this way, by arranging the first driving assembly at the side of the first half-ring side wall of the boss and arranging the second driving assembly at the side of the second half-ring side wall, the rotating support can be uniformly stressed during rotation. In addition, by arranging the second driving assembly between the two first rolling members, the number of first rolling members is increased, so that the rotating support can contact the first rolling members on both sides of the first driving assembly, which is beneficial to further improve the consistency, stability and reliability of the movement. In addition, by arranging the first driving assembly between the two second rolling members, the number of second rolling members is increased, which can further limit the displacement of the rotating support during the reliability test (rolling or drop test, etc.) of the variable aperture and the use of the user, and effectively reduce the displacement of the rotating support.

[0068] In an alternative embodiment, the rotating support includes a second plastic member and a second metal support. The second metal support is embedded in the second plastic member, and the second metal support and the second plastic member are connected as a second integral structure. In this way, the second integral structure can be formed by an embedding injection molding process. Since the rotating support includes the second metal support, the mechanical strength of the rotating support can be increased, and the probability of damage to the rotating support can be reduced when the rotating support is impacted during reliability testing (rolling or drop testing, etc.) of the variable aperture or during use by a user, thereby prolonging the service life of the product. In addition, the magnet assembly is connected to and attracted to the second metal support. In this way, the magnet assembly can be connected to the second metal support by dispensing glue on the side of the second metal support facing the magnet assembly. In this way, the reliability of the connection between the magnet assembly and the second metal support can be increased because the second metal support can be attracted to the magnet assembly. In addition, a separate magnetic conductive sheet for connecting the rotating support and the magnet assembly can be avoided, thereby simplifying the manufacturing process.

[0069] In an alternative embodiment, the variable aperture further includes a cover plate disposed on the side of the plurality of blades facing away from the rotating support, and the cover plate is disposed on the fixed seat. The cover plate includes a third plastic member, a third metal support, and a first gasket. The third metal support is embedded in the third plastic member, and the third metal support and the third plastic member are connected as a third integral structure. In this way, the third integral structure can be formed by an embedding injection molding process. Since the cover plate includes the third metal support, the mechanical strength of the cover plate can be increased, and the probability of damage to the cover plate can be reduced when the cover plate is impacted during reliability testing (rolling or drop testing, etc.) of the variable aperture or during use by a user, thereby prolonging the service life of the product. In addition, the third metal support is connected to the first metal support, and the third metal support in the cover plate and the first metal support in the fixed seat can be connected by welding, thereby increasing the reliability of the connection between the cover plate and the fixed seat and reducing the probability of the cover plate falling off. In some embodiments of the present application, a plurality of welding positions can be provided on the cover plate, and the plurality of welding positions can be arranged around the aperture hole, thereby increasing the stability of the connection between the cover plate and the fixed seat. In addition, the first gasket is stacked on the side of the third integral structure facing away from the blades, and the first gasket can shield part of the structure of the blades below the cover plate, so that the side surface of the first gasket facing away from the third integral structure serves as an appearance surface visible to a user, thereby achieving the effects of decoration and improvement of the appearance quality and maximizing the control area of the appearance of the product.

[0070] In addition, since the third metal support in the cover plate is located in the third plastic part, and the cover plate is arranged on the side of the plurality of blades away from the rotating support. In this way, in the process of rotating the blades, the components in direct contact with the blades and rubbing the blades are the third plastic part in the cover plate. The surface of the third plastic part has a smaller friction coefficient relative to the surface of the metal material, thereby reducing the friction between the blades and the third plastic part, and further reducing the probability of blade wear.

[0071] In an optional implementation, the third metal support is electrically connected with the first metal support, and the third metal support is grounded through the first metal support. As known from the above, the cover plate and the fixing seat can be prepared by embedding injection molding process. In addition, in this case, by electrically connecting the third metal support and the first metal support, the third metal support can be grounded through the first metal support. In this way, the manufacturing process of the cover plate grounding can be simplified. In the related art, the cover plate mainly composed of a steel plate needs to be electrically connected and grounded with the part introduced by the FPC through the dispensing method, and then the dispensing position is covered with dispensing protection glue. Compared with the related art, the present application only needs to electrically connect the third metal support in the cover plate with the first metal support in the fixing seat, for example, by welding or dispensing, so that the FPC introduction part and the dispensing layer and dispensing protection glue for electrically connecting the FPC introduction part with the cover plate are not needed, thereby achieving the purpose of simplifying the structure and reducing the manufacturing process.

[0072] In an optional implementation, the cover plate has a second light transmission hole, and the second light transmission hole is in communication with the aperture hole. The third metal support has a plurality of hollow parts penetrating through the third metal support, and the hollow parts are arranged at the periphery of the second light transmission hole. In this way, the second light transmission hole in communication with the aperture hole can be used to make external light enter the aperture hole through the second light transmission hole. In addition, by arranging a plurality of hollow parts on the third metal support, the weight of the entire third metal support can be reduced, thereby achieving the purpose of reducing the weight of the variable aperture.

[0073] In an optional implementation, the variable aperture further includes a second gasket, and the second gasket is arranged on the side of the plurality of blades facing the fixing seat. The second gasket has a third light transmission hole, and the third light transmission hole is in communication with the aperture hole. The third light transmission hole in communication with the aperture hole can be used to make external light enter the aperture hole through the third light transmission hole.

[0074] In an alternative embodiment, the second gasket, the first gasket and the blade are made of the same material. The material has a specular reflectance G, an optical density OD, and L, a and b values in a material color triplet, respectively, G≤0.3%, OD≥5.0, L≤8, |a|≤1, and |b|≤1. In this way, the material of the second gasket, the first gasket and the blade can all be super black materials, so that the color and gloss of the parts of the first gasket, the second gasket and the blade visible to the user during movement are consistent, reducing the probability of color difference between the three components and improving the appearance quality.

[0075] In an alternative embodiment, the material of the second gasket, the first gasket and the blade has a modulus greater than or equal to 3000 MPa, a yield strength greater than or equal to 80 MPa, and an elongation at break greater than or equal to 10%. In this way, during reliability testing, it can pass 2 rounds or 5 rounds of drop tests and pass 500 times of roller tests, and there is a certain risk in more than 1000 times of roller tests. In addition, the service life can reach 250,000 times.

[0076] In an alternative embodiment, the fixing seat is arranged around a portion of the periphery of the rotating support and protrudes from the surface of the cover plate away from the blade. In this way, the portion of the fixing seat around the periphery of the rotating support, such as the side plate, can be in contact with the lens covering the camera module or other decorative components on the rear shell, so that during product testing or user use, the probability of direct contact between the cover plate and the lens or other device components and deformation is reduced, improving the service life and reliability of the product.

[0077] In an alternative embodiment, in the same driving assembly, the vertical projection of the magnet assembly on the rotating support overlaps the vertical projection of the coil on the rotating support, so that the positions of the magnet assembly and the coil in the same driving assembly correspond to each other, so that the energized coil can more easily generate a magnetic field with the magnet assembly.

[0078] In an alternative embodiment, the fixing seat further comprises an adhesive structure arranged on the surface of the bottom plate away from the side plate. The adhesive structure and the surface of the bottom plate away from the side plate can be connected to the lens assembly located below the variable aperture. In this way, the connection surface between the variable aperture and the lens assembly can be a concave-convex surface to improve the stability of the adhesion.

[0079] In an optional implementation, the vertical projection of the bonding structure on the bottom plate is a sector, the sector has a first arc-shaped side and a second arc-shaped side, the arc length of the first arc-shaped side is greater than the arc length of the second arc-shaped side. The first arc-shaped side is arranged away from the boss relative to the second arc-shaped side. In this way, the bonding structure can be a dovetail structure, and the bonding groove matched with the bonding structure of the lens assembly can be a dovetail groove matched with the dovetail structure. In this case, the variable aperture can be prevented from shearing in the horizontal plane (a surface perpendicular to the optical axis of the variable aperture) in the X and Y directions during the working process of the camera module. In addition, along the rotation direction of the blades in the variable aperture, the contact area of the side wall of the dovetail structure with the dovetail groove is large, which can effectively limit the variable aperture to limit the position of the variable aperture.

[0080] In an optional implementation, the variable aperture is provided with a boss close to one side of the lens assembly, and the lens assembly is provided with a groove, and the boss and the groove are matched.

[0081] In an optional implementation, the cross-sectional shape of the groove is dovetail groove-shaped.

[0082] In another aspect of the present application, an electronic device is provided, which includes a rear shell and a camera module as described above, and the camera module is arranged on the rear shell. The electronic device has the same technical effects as the variable aperture in the camera module provided in the foregoing embodiments, and details are not repeated here.

[0083] In an optional implementation, the electronic device further includes a processor; and the camera module includes a module circuit board, and the module circuit board is electrically connected to the processor through a third FPC.

[0084] In an optional implementation, the module circuit board is provided with a first driving chip, the first driving mechanism and the second driving mechanism are electrically connected to the first driving chip, and the first driving chip is electrically connected to the processor; and the first driving chip is configured to control the first driving mechanism and the second driving mechanism.

[0085] In an optional implementation, the electronic device further includes a position sensor, the position sensor is electrically connected to the first driving chip, and the position sensor is configured to detect the position of the second support relative to the base, and the first driving chip is configured to control the second driving mechanism according to the position information detected by the position sensor.

[0086] In an optional implementation, the position sensor includes a Hall sensor and a gyroscope.

[0087] In an alternative embodiment, the variable aperture comprises a second driving chip, the second driving chip being electrically connected with the processor, the second driving chip being electrically connected with the third driving mechanism, and the second driving chip being configured to control the third driving mechanism.

[0088] In an alternative embodiment, a Hall sensor is integrated in the second driving chip. BRIEF DESCRIPTION OF DRAWINGS

[0089] Figure 1 A disassembled structural schematic diagram of an electronic device is provided for the embodiments of the present application.

[0090] Figure 2 A structural schematic diagram of a camera module is provided for the embodiments of the present application. Figure 1

[0091] Figure 3 A disassembled structural schematic diagram of a camera module is provided for the embodiments of the present application. Figure 2

[0092] Figure 4 A structural schematic diagram of a camera driving motor is provided for the embodiments of the present application.

[0093] Figure 5 A structural schematic diagram of a camera driving motor without a shell is provided for the embodiments of the present application.

[0094] Figure 6 A disassembled structural schematic diagram of a camera driving motor is provided for the embodiments of the present application.

[0095] Figure 7 A disassembled structural schematic diagram of a camera driving motor for displaying a first driving mechanism is provided for the embodiments of the present application.

[0096] Figure 8a A disassembled structural schematic diagram of a camera driving motor for displaying a second driving mechanism is provided for the embodiments of the present application.

[0097] Figure 8b A structural schematic diagram of a camera driving motor for displaying a second driving mechanism is provided for the embodiments of the present application.

[0098] Figure 8c A structural schematic diagram of a camera driving motor for displaying a second driving mechanism is provided for the embodiments of the present application.

[0099] Figure 9 A structural schematic diagram of a camera driving motor for displaying a second driving mechanism is provided for the embodiments of the present application.

[0100] Figure 10 ​​A disassembled structural schematic view of a camera driving motor for showing a plurality of balls provided by an embodiment of the present application;

[0101] Figure 11 A structural schematic view of a camera driving motor for showing a plurality of groups of balls provided by an embodiment of the present application;

[0102] Figure 12 A disassembled structural schematic view of a camera driving motor for showing a second magnetic component provided by an embodiment of the present application;

[0103] Figure 13 A structural schematic view of a camera driving motor for showing a setting mode of a second magnetic component provided by an embodiment of the present application;

[0104] Figure 14 A structural schematic view of a camera driving motor for showing a setting mode of a plurality of groups of balls and a plurality of groups of second magnetic components provided by an embodiment of the present application;

[0105] Figure 15 A structural schematic view of a camera driving motor for showing a setting mode of a spring arm provided by an embodiment of the present application;

[0106] Figure 16 A structural schematic view of a camera driving motor for showing a setting mode of a spring arm provided by an embodiment of the present application;

[0107] Figure 17 A structural schematic view of a camera driving motor for showing a spring arm provided by an embodiment of the present application;

[0108] Figure 18 A structural schematic view of a camera driving motor for showing a setting mode of a spring arm provided by an embodiment of the present application;

[0109] Figure 19 A structural schematic view of a camera driving motor provided by an embodiment of the present application;

[0110] Figure 20 A structural schematic view of a camera driving motor provided by an embodiment of the present application;

[0111] Figure 21 A structural schematic view of a camera driving motor for showing a second support, lens movement provided by an embodiment of the present application;

[0112] Figure 22 A structural schematic view of a camera driving motor for showing a setting mode of an elastic member provided by an embodiment of the present application;

[0113] Figure 23An exploded structural schematic view for showing the elastic element arrangement mode of a camera driving motor is provided for the embodiment of the present application;

[0114] Figure 24 A structural schematic view for showing the elastic element of a camera driving motor is provided for the embodiment of the present application;

[0115] Figure 25 A structural schematic view for showing the slide rod arrangement mode of a camera driving motor is provided for the embodiment of the present application;

[0116] Figure 26 A structural schematic view for showing the slide rod arrangement mode of a camera driving motor is provided for the embodiment of the present application;

[0117] Figure 27 An exploded structural schematic view for showing the slide rod arrangement mode of a camera driving motor is provided for the embodiment of the present application;

[0118] Figure 28 A circuit structural schematic view for showing the position sensor of a camera driving motor is provided for the embodiment of the present application;

[0119] Figure 29 A structural schematic view for showing the spring arm arrangement mode of a camera driving motor is provided for the embodiment of the present application;

[0120] Figure 30 A structural schematic view for showing the spring arm of a camera driving motor is provided for the embodiment of the present application;

[0121] Figure 31 A structural schematic view for showing the second support of a camera driving motor is provided for the embodiment of the present application;

[0122] Figure 32 An exploded structural schematic view for showing the second support of a camera driving motor is provided for the embodiment of the present application;

[0123] Figure 33 A structural schematic view for showing the electrical connection structure of a camera driving motor is provided for the embodiment of the present application;

[0124] Figure 34 A structural schematic view for showing the electrical connection structure of a camera driving motor is provided for the embodiment of the present application;

[0125] Figure 35 A structural schematic view for showing the electrical connection structure of a camera driving motor is provided for the embodiment of the present application;

[0126] Figure 36A schematic diagram illustrating the electrical connection structure of a camera drive motor provided in this application embodiment;

[0127] Figure 37 A schematic diagram illustrating the electrical connection structure of a camera drive motor provided in this application embodiment;

[0128] Figure 38 A schematic diagram of a variable aperture structure for illustrating an electrical connection structure is provided in this application embodiment;

[0129] Figure 39 This is a schematic diagram of the structure of a module circuit board provided in an embodiment of this application;

[0130] Figure 40 A schematic diagram of the internal support structure of a camera drive motor provided in an embodiment of this application;

[0131] Figure 41 A schematic diagram of the disassembled structure of a bracket inside a camera drive motor provided in an embodiment of this application;

[0132] Figure 42 for Figure 3 A schematic diagram of a variable aperture structure;

[0133] Figure 43 for Figure 4 A schematic diagram of an exploded structure of a variable aperture;

[0134] Figure 44 A schematic diagram of a partial structure of a variable aperture provided in an embodiment of this application;

[0135] Figure 45 for Figure 44 A schematic diagram of a rotating bracket mounted on a fixed base;

[0136] Figure 46 A schematic diagram of another partial structure of the variable aperture provided in an embodiment of this application;

[0137] Figure 47 for Figure 46 A schematic diagram of a structure in which blades are mounted on a fixed base and a rotating bracket;

[0138] Figure 48 For along Figure 47 A sectional view obtained by cutting along the dashed lines O3-O4 in the figure;

[0139] Figure 49 This is a schematic diagram of a magnet assembly provided in an embodiment of this application;

[0140] Figure 50Another structural schematic view of the magnet assembly provided by the embodiment of the present application;

[0141] Figure 51 Another plan view obtained in the Z direction of the magnet assembly in Figure 44

[0142] Figure 52 Another plan view obtained in the Z direction of the magnet assembly in Figure 44

[0143] Figure 53 Another structural schematic view of the variable aperture provided by the embodiment of the present application;

[0144] Figure 54 Another structural schematic view of the variable aperture provided by the embodiment of the present application;

[0145] Figure 55 Another plan view obtained in the Z direction of the magnet assembly in Figure 44

[0146] Figure 56 A sectional view obtained by cutting along the dashed line O1-O2 in the magnet assembly in Figure 55

[0147] Another structural schematic view of the variable aperture provided by the embodiment of the present application; Figure 57

[0148] Another sectional view obtained by cutting along the dashed line O1-O2 in the magnet assembly in Figure 58 Figure 55

[0149] Another plan view obtained in the Z direction of the magnet assembly in Figure 59 Figure 44 Another structural schematic view of the variable aperture provided by the embodiment of the present application;

[0150] Figure 60 Figure 4 Another structural schematic view of the variable aperture provided by the embodiment of the present application;

[0151] Figure 61 A bottom view obtained in the Z direction of the magnet assembly in Figure 60

[0152] A plan view obtained in the Z direction of the magnet assembly in Figure 62 Figure 60 Another structural schematic view of the variable aperture provided by the embodiment of the present application;

[0153] Figure 63 Another structural schematic view of the variable aperture provided by the embodiment of the present application;

[0154] Figure 64 Another structural schematic view of the variable aperture provided by the embodiment of the present application; ​​​​​​​

[0155] Figure 65 A structure schematic view of the fixing seat provided by the embodiment of the present application;

[0156] Figure 66 Another structure schematic view of the fixing seat provided by the embodiment of the present application;

[0157] Figure 67 A schematic view of part of the structure of the fixing seat provided by the embodiment of the present application;

[0158] Figure 68 Another schematic view of part of the structure of the variable aperture provided by the embodiment of the present application;

[0159] Figure 69 Another exploded structure schematic view of the fixing seat provided by the embodiment of the present application;

[0160] Figure 70 Another structure schematic view of the fixing seat provided by the embodiment of the present application;

[0161] Figure 71 Another schematic view of part of the structure of the fixing seat provided by the embodiment of the present application;

[0162] Figure 72 Another structure schematic view of the variable aperture provided by the embodiment of the present application; Figure 3

[0163] Another exploded structure schematic view of the rotating support provided by the embodiment of the present application; Figure 73

[0164] A structure schematic view of the rotating support provided by the embodiment of the present application; Figure 74

[0165] A bottom view obtained along the Z direction in the rotating support provided by the embodiment of the present application; Figure 75 Figure 74 Another exploded structure schematic view of the variable aperture provided by the embodiment of the present application;

[0166] Figure 76 An exploded structure schematic view of the cover plate provided by the embodiment of the present application;

[0167] Figure 77 A schematic view of part of the structure of the cover plate provided by the embodiment of the present application;

[0168] Figure 78 Figure 77 Another schematic view of part of the structure of the variable aperture provided by the embodiment of the present application;

[0169] Figure 79 Another schematic view of part of the structure of the variable aperture provided by the embodiment of the present application;

[0170] Figure 80 ​​A variable aperture structure schematic diagram provided for the related art;

[0171] Figure 81 For Figure 3 Another variable aperture structure schematic diagram in the middle;

[0172] Figure 82 For Figure 3 Another variable aperture structure schematic diagram in the middle;

[0173] Figure 83 The connection schematic diagram of the variable aperture and the lens assembly provided by the embodiment of the application;

[0174] Figure 84 The electrical connection structure block diagram of a display module provided by the embodiment of the application;

[0175] Figure 85 The structure block diagram of an electronic device provided by the embodiment of the application;

[0176] Figure 86 The first application scenario schematic diagram of an electronic device provided by the embodiment of the application.

[0177] Reference signs:

[0178] 1-electronic device; 2-display screen; 4-middle frame; 3-back shell; 5-processor; 6-opening; 7-lens cover; 8-photographing hole; 10-photographing module; 11-position sensor; 20-variable aperture; 40-lens assembly; 4001-first side; 4002-second side; 41-motor; 413-base; 415-first support; 414-second support; 418-first driving mechanism; 421-second driving mechanism; 4212-SMA wire; 801-filter; 802-image sensor; 80-circuit board; 21-fixing seat; 22-rotating support; 23-blade; 24-third driving mechanism; 241-magnet assembly; 242-coil; 25-cover plate; 26-second gasket; 100-aperture hole; 101-first light-transmitting hole; 103-third light-transmitting hole; 28-second driving chip; 121-first limiting column; 122-second limiting column; 211-bottom plate; 212-convex post; 213-side plate; 130-first opening; 110-first mounting groove; 221-ring part; 222-lug; 123-coil mounting hole; 1210-rotating connection hole; 1220-sliding guide groove; 2410-magnet; 27-second FPC; 2101-first plastic part; 2102-first metal support; 214-first metal part; 215-second metal part; 2151-metal plate; 2152-metal rod; 2153-welding part; 2100-first integrated structure part; 140-first hollowed-out area; 124-coil mounting groove; 2103-metal ground trace; 2104-metal signal trace; 2105-metal ground terminal; 2106-metal signal terminal; 243-first magnetic conducting sheet; 111-second mounting groove; 2121-first half-ring side wall; 2122-second half-ring side wall; 29-second magnetic conducting sheet; 31-first rolling part; 310-first rolling groove; 32-second rolling part; 320-second rolling groove; 2401-first driving assembly; 2402-second driving assembly; 2201-second plastic part; 2202-second metal support; 2200-second integrated structure part; 2501-third plastic part; 2502-third metal support; 2503-first gasket; 102-second light-transmitting hole; 2500-third integrated structure part; 25011-hollowed-out part; 34-anti-collision structure; 35-bonding structure; 351-first arc-shaped edge; 352-second arc-shaped edge; 36-bonding groove; 424-rolling ball; 426-second magnetic part; 4181-magnet; 4182-coil; 4211-fixed jaw; 4213-moving jaw; 50-elastic part; 501-first lug; 502-second lug; 503-elastic section; 53-sliding rod; 531-sliding groove; 54-first magnetic part; 58-second spring arm; 61-first FPC; 621-first conductive lead; 427-first spring arm; 63-second conductive lead; 66-ground lead; 622-third conductive lead;803 - first driving chip. DETAILED DESCRIPTION

[0179] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings.

[0180] Hereinafter, the terms "first", "second", and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0181] In addition, in the present application, the orientation terms such as "upper", "lower", and the like are defined with respect to the orientation in which the components in the drawings are placed, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation in which the components are placed in the drawings.

[0182] This application provides an electronic device that can have a display function. This electronic device can be applied to various communication systems or protocols, such as Bluetooth (BT), Global Positioning System (GPS), Global System for Mobile Communication (GSM), Wireless Fidelity (WiFi), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), 5G, and other future communication technologies. The electronic device in this application can be a mobile phone, tablet, laptop, smart home device, smart wearable device (e.g., smartwatch, smart bracelet, smart glasses, smart helmet), virtual reality (VR) electronic device, augmented reality (AR) electronic device, etc. Electronic devices can also be handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, vehicle-mounted devices, electronic devices in 5G networks, or electronic devices in future evolved public land mobile networks (PLMNs), etc., and the embodiments of this application are not limited to these.

[0183] like Figure 1 As shown, the electronic device 1 includes a display screen 2, a rear shell 3 located on the back of the display screen 2 (opposite to the display surface of the display screen 2), and a middle frame 4 located between the display screen 2 and the rear shell 3, the middle frame 4 being able to support the display screen 2.

[0184] In one possible embodiment of this application, the display screen 2 is an organic light-emitting diode (OLED) display screen. Since each light-emitting sub-pixel in an OLED display screen has an electroluminescent layer, the OLED display screen can achieve self-illumination after receiving an operating voltage.

[0185] The middle frame 4 is located between the display screen 2 and the rear shell 3, and the surface of the middle frame 4 away from the display screen 2 is used to mount internal components such as a battery, a printed circuit board (PCB), a camera, an antenna, a processor 5, and the like. After the rear shell 3 is covered with the middle frame 4, the above-mentioned internal components are located between the rear shell 3 and the middle frame 4. The processor 5 can provide display data to the display screen 2 to drive the display screen 2 to display images.

[0186] In some embodiments, in order to enable the above-mentioned electronic device 1 to realize a photographing function, the electronic device 1 provided by the embodiments of the present application can further include a camera module 10, which can be a front camera module or a rear camera module. The front camera module can be arranged on the back of the display screen 2 as shown in the drawings, and the photosensitive surface of the front camera module is located on the side of the display surface of the display screen 2. The rear camera module can be arranged on the side of the middle frame 4 away from the display screen 2, i.e., in the mounting space formed between the middle frame 4 and the rear shell 3, and the photosensitive surface of the rear camera module is located on the back of the electronic device 1. Figure 1

[0187] For example, the front camera module or the rear camera module can include a plurality of camera modules 10 as shown in the drawings. Figure 1 For example, the front camera module or the rear camera module can include a plurality of camera modules 10 as shown in the drawings.

[0188] The camera module 10 can be one or more of a standard camera module, a long-focus camera module, a wide-angle camera module, an ultra-long-focus camera module, and an ultra-wide-angle camera module. The number of camera modules 10 is not limited by the present application, Figure 1 For example, the rear camera module includes three camera modules 10.

[0189] The present application does not limit the electrical connection relationship of the camera module. In some embodiments, the camera module includes a module circuit board, and the surface of the middle frame 4 facing the rear shell 3 is provided with a circuit board, and the module circuit board is electrically connected to the circuit board.

[0190] It should be noted that the present application does not limit the specific structure of the electronic device 1, as long as the electronic device 1 has a camera module.

[0191] Referring to Figure 2 and Figure 3 , Figure 2 is an assembly view of the camera module 10 according to the embodiments of the present application, Figure 3 is an exploded view of the camera module 10 according to the embodiments of the present application. ​

[0192] The camera module 10 includes: a base 413, a first bracket 415, a second bracket 414, a lens assembly 40, and a variable aperture 20.

[0193] The first bracket 415 and the second bracket 414 are both mounted on the base 413. The second bracket 414 is connected to the base 413 via an SMA cable. The first bracket 415 has a ring structure, forming a hollow cavity. The lens assembly 40 is mounted in the cavity and fixed on the first bracket 415. The optical axis of the lens assembly 40 is parallel to the central axis of the cavity. The variable aperture 20 is mounted on the side of the lens assembly 40 away from the base 413. The second bracket 414 is fitted onto the outside of the first bracket 415.

[0194] For ease of description, an XYZ coordinate axis is established in the accompanying drawings. The Z direction can be the optical axis O1-O2 direction of the lens assembly 40, which is also the thickness direction of the camera module 10. The XY plane formed by the X and Y directions can be perpendicular to the optical axis O1-O2 direction of the lens assembly 40.

[0195] The optical axis O1-O2 can refer to the direction in which the optical system of the lens assembly 40 transmits light. For example, for a symmetrical lens assembly 40, the optical axis O1-O2 can coincide with the rotation center line of the optical system of the lens assembly 40. The optical axis O1-O2 of the lens assembly 40 can serve as the optical axis of the camera module 10, and the optical axis of the variable aperture 20 can overlap with the optical axis of the camera module 10.

[0196] The lens assembly 40 includes a lens barrel and an optical lens group installed inside the lens barrel. The optical lens group is used to transmit light from the scene and to image the scene being photographed. By designing the structure of the optical lens group and the shape and size of the optical lenses, lenses with different characteristics such as wide-angle and telephoto can be obtained. By replacing different lenses, camera modules with different characteristics such as wide-angle and telephoto can be assembled.

[0197] The variable aperture 20 includes a drive device and multiple blades. The drive device is used to drive the multiple blades to adjust the size of the light-entry aperture formed by the multiple blades, thereby adjusting the amount of light entering the aperture.

[0198] like Figure 2 As shown, the camera module also includes a camera drive motor 41. The camera drive motor 41 can be used to drive the first bracket 415 and the lens assembly 40 to move along their optical axes O1-O2 to achieve automatic focusing of the lens. Alternatively, it can also be used to drive the first bracket 415, the second bracket 414, and the lens assembly 40 to move in the XY plane or rotate around the optical axis O1-O2 of the lens assembly 40 to achieve image stabilization compensation when the electronic device shakes in any direction. Alternatively, it can not only achieve automatic focusing of the lens but also image stabilization compensation.

[0199] In order to enable the camera module 10 to perform photoelectric conversion on the light rays incident into the camera module 10 to generate image information, the camera module 10 can further include a filter 801, an image sensor 802, and a circuit board 80, as shown in FIG. 8. The image sensor 802 is disposed on the circuit board 80 and is electrically connected to the circuit board 80. Figure 3

[0200] The image sensor 802 can be a charge coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS), for example. The image sensor 802 is disposed at the focal plane of the camera module 10, so as to be capable of receiving the light image of the object of photography converged by the lens assembly 40. The image sensor 802 can include a plurality of light sensing units, each of which converts the amount of received light into an electrical signal in a corresponding proportional relationship with the amount of light.

[0201] In addition, to improve the effective resolution and color restoration of the image sensor 802, the filter 801 can be disposed on the light-incident side of the image sensor 802. The filter 801 can be an infrared filter that filters out infrared light in ambient light and transmits visible light, for example. Alternatively, the filter 801 can be a double-bandpass filter that selects a wavelength band in two regions of ambient light to pass through, such as visible light and infrared light, or visible light and ultraviolet light, or ultraviolet light and infrared light, for example.

[0202] In order to more clearly describe the orientations between the structural components, the application draws the light propagation direction in the camera module in some example structural diagrams below. The light entering the variable aperture 20 is incident light, and the light entering the filter 801 from the lens 40 is outgoing light. For example, in Figure 3 , the black dashed line with an arrow shows the propagation direction of the light and shows the incident light and the outgoing light.

[0203] In some embodiments, referring to Figure 3 , the lens assembly 40 includes a first side surface 4001 and a second side surface 4002. The curvature of the first side surface 4001 is smaller than the curvature of the second side surface 4002. Thus, the first side surface can be formed by cutting a circular lens assembly, and the cut lens assembly occupies less space, which is conducive to the miniaturization of the camera module.

[0204] For example, the first side surface 4001 is a flat surface, and the second side surface 4002 is an arc surface. Thus, the space occupied by the lens assembly can be further reduced.​

[0205] In an alternative embodiment, the first support 415 is shaped to fit the shape of the lens assembly 40. In this way, the space occupied by the first support can be reduced, further achieving miniaturization of the camera module.

[0206] Referring to Figure 4 , Figure 4 A structural diagram of a camera driving motor is given in an embodiment of the present application. In this embodiment, the camera driving motor 41 includes a housing 411 for protecting the internal structure of the camera driving motor from water and dust. When the electronic device is assembled, the camera driving motor is fixed in the electronic device through the housing.

[0207] The housing 411 is provided with an assembly cavity 412, and the housing 411 is provided with an opening communicating with the assembly cavity 412. The shape of the opening includes but is not limited to a circular shape, a square shape, an oval shape, and a polygonal shape.

[0208] The assembly cavity 412 is used to accommodate the lens assembly 40 and at least part of the variable aperture 20. The edge of the opening around the housing maintains a certain clearance with the lens assembly 40 and the variable aperture 20 to form a clearance when the lens assembly 40 tilts in any direction around the opening.

[0209] Figure 5 is a structural diagram of the camera driving motor 41 without the housing 411 given in an embodiment of the present application, Figure 6 is Figure 5 an exploded view, Figure 6 is a partial disassembly of the camera driving motor, not a complete disassembly.

[0210] In this embodiment, as Figure 5 , the camera driving motor 41 further includes a base 413, a second support 414, and a first support 415. The base 413, the second support 414, and the first support 415 can be disposed in the housing 411 of the camera driving motor. The second support 414 is disposed on the base 413.

[0211] As Figure 6 , the second support 414 forms a receiving cavity 416 therein, and the first support 415 is disposed in the receiving cavity 416. The first support 415 has a lens mounting hole 417 for assembling the lens assembly 40.

[0212] In addition to the base 413, the second bracket 414 and the first bracket 415, the camera drive motor 41 may also include a first drive mechanism 418. The first drive mechanism 418 may be located between the second bracket 414 and the first bracket 415. The first drive mechanism 418 connects the second bracket 414 and the first bracket 415. The first drive mechanism 418 is used to drive the first bracket 415 to move relative to the second bracket 414 along the axial direction (Z direction) of the lens mounting hole, so as to drive the lens assembly 40 in the lens mounting hole 417 to move along the optical axis O1-O2 extension direction, thereby forming an autofocus camera module.

[0213] It can be understood that: when the camera module given in this application embodiment is autofocusing, the second bracket 414 is a fixed part, the first bracket 415 is a moving part, the lens assembly 40 is fixedly connected to the moving part first bracket 415, and under the drive of the first drive mechanism 418, when the moving part moves relative to the fixed part in the Z direction, it can simultaneously drive the lens assembly 40 to move in the Z direction to achieve autofocus.

[0214] like Figure 7 As shown, Figure 7 An exemplary configuration of the first drive mechanism 418 is shown. The first drive mechanism 418 includes multiple sets of focusing drive units arranged at circumferential intervals along the first support 415. In some examples, the multiple sets of focusing drive units may be symmetrically arranged about the optical axis O1-O2 of the lens.

[0215] For example, in Figure 7 The lens includes two sets of focusing drive units: focusing drive unit 418A and focusing drive unit 418B. The focusing drive units 418A and 418B are arranged opposite to each other and are symmetrically arranged about the optical axis O1-O2 of the lens.

[0216] In this application example, each focusing drive unit includes a magnet 4181 and a coil 4182, one of which, 4181 and 4182, is disposed on a second support 414, and the other is disposed on a first support 415. For example, in Figure 7 In the middle, magnet 4181 is set on the first bracket 415, and coil 4182 is set on the second bracket 414.

[0217] There are various ways in which the magnet 4181 can be positioned on the first support 415. For example, in Figure 7 In the example, a first mounting groove 419 is provided on the wall surface of the first bracket 415 facing the second bracket 414, and a magnet 4181 is disposed in the first mounting groove 419.

[0218] Figure 7An example shows a manner of arranging the coil 4182. A second mounting groove 420 is formed on a wall of the second holder 414 facing the first holder 415, and the coil 4182 is arranged in the second mounting groove 420.

[0219] In the example of the present application, when the camera module is in auto-focusing, the ampere force generated by the magnet 4181 and the coil 4182 causes the first holder 415 carrying the lens assembly to move up and down along the optical axis O1-O2 of the lens, thereby achieving auto-focusing.

[0220] In some optional structures, one focusing driving unit can include a plurality of magnets 4181, each of which can generate a magnetic field with the coil 4182 after being powered on, thereby increasing the strength of the generated magnetic field. The plurality of magnets 4181 can be arranged in a Halbach array structure as shown. Figure 7

[0221] The camera driving motor in the example of the present application not only includes a first driving mechanism for achieving auto-focusing, but also includes a second driving mechanism for achieving optical image stabilization.

[0222] In the example of the present application, the second driving mechanism connects the base 413 and the second holder 414, and drives the second holder 414, the first holder 415 and the lens assembly 40 to move along the XY plane perpendicular to the optical axis O1-O2 of the lens assembly, thereby achieving anti-shake compensation.

[0223] The second holder 414 in the example of the present application not only serves as a fixed part for achieving the function of auto-focusing, but also serves as a moving part for achieving the function of optical image stabilization. Compared with separately arranging fixed parts and moving parts for auto-focusing and optical image stabilization, the present application can reduce the number of structural parts and compress the volume of the entire camera driving motor, thereby achieving miniaturization design of the camera driving motor.

[0224] In some embodiments, as shown in Figure 8a Figure 8a An example shows a structure that can be implemented by the second driving mechanism. The second driving mechanism can include a plurality of sets of anti-shake driving units, and the plurality of sets of anti-shake driving units can be arranged around the circumference of the base.

[0225] For example, in the example shown in Figure 8a , the second driving mechanism includes four sets of anti-shake driving units, namely anti-shake driving unit 421A, anti-shake driving unit 421B, anti-shake driving unit 421C and anti-shake driving unit 421D. The anti-shake driving unit 421A, the anti-shake driving unit 421B, the anti-shake driving unit 421C and the anti-shake driving unit 421D are arranged along the circumference of the base.

[0226] Continue to see​​Figure 8a Each group of anti-shake driving units includes a fixed jaw 4211 and a movable jaw 4213, and a shape memory alloy (SMA) wire 4212 connecting the fixed jaw 4211 and the movable jaw 4213. One end of the SMA wire 4212 is connected to the movable jaw 4213, and the other end is connected to the fixed jaw 4211.

[0227] The second driving mechanism in the examples of the present application adopts an SMA driving assembly to form an SMA driving motor. The SMA driving assembly has the characteristics of large driving force and small volume, so that the volume of the entire camera driving motor can be compressed.

[0228] In some implementable structures, as Figure 8a Each group of anti-shake driving units can include one movable jaw 4213, one fixed jaw 4211, and one SMA wire 4212 connecting the movable jaw 4213 and the fixed jaw 4211. The driving structure in the examples of the present application is a 4-wire SMA driving assembly, which has a simple structure and occupies a small area.

[0229] Continuing to see Figure 8a The movable jaws 4213 of the two adjacent groups of anti-shake driving units are arranged close to each other and connected together. For example, the anti-shake driving unit 421A and the anti-shake driving unit 421D are adjacent, and the movable jaw 4213 of the anti-shake driving unit 421A and the movable jaw 4213 of the anti-shake driving unit 421D are connected together. Alternatively, in some examples, the movable jaw 4213 of the anti-shake driving unit 421A and the movable jaw 4213 of the anti-shake driving unit 421D are an integral structure.

[0230] See Figure 8a The fixed jaws 4211 of the two adjacent groups of anti-shake driving units are arranged close to each other and separated. For example, the anti-shake driving unit 421A and the anti-shake driving unit 421B are adjacent, and the fixed jaw 4211 of the anti-shake driving unit 421A and the fixed jaw 4211 of the anti-shake driving unit 421B are close to each other, and the two fixed jaws 4211 are independent structure.

[0231] In some examples, the fixed jaw 4211 can serve as a wiring terminal of the first electrode of the SMA wire 4212, and the movable jaw 4213 can serve as a wiring terminal of the second electrode of the SMA wire 4212. For example, the fixed jaw 4211 can serve as a wiring terminal of the positive electrode of the SMA wire, and the movable jaw 4213 can serve as a wiring terminal of the negative electrode of the SMA wire.

[0232] As Figure 8aAs shown, the anti-shake driving unit 421A and the anti-shake driving unit 421D are arranged adjacently, and the movable clamping jaw 4213 of the anti-shake driving unit 421A and the movable clamping jaw 4213 of the anti-shake driving unit 421D are connected together. For example, the fixed clamping jaw 4211 of the anti-shake driving unit 421A serves as a positive terminal, the fixed clamping jaw 4211 of the anti-shake driving unit 421D also serves as a positive terminal, and the movable clamping jaw 4213 of the anti-shake driving unit 421A and the movable clamping jaw 4213 of the anti-shake driving unit 421D connected together serve as a negative terminal. In the example of the present application, the SMA wire 4212 is a wire structure made of SMA. The SMA can be a nickel-titanium alloy material, which has the characteristics of thermal contraction and cold expansion. When no current is passed through the SMA wire, the SMA wire is in a relaxed state. When current flows into the SMA wire, the SMA wire will convert part of the electric energy into heat energy due to its resistance characteristics, and the SMA wire will shrink under the action of its own heat energy to apply a pulling force to the second support 414, so that the second support 414 can be moved in any direction around the second support 414, thereby realizing optical anti-shake.

[0233] By limiting the positional relationship of the four SMA wires, the SMA driving assembly can move the resultant force of the four SMA wires on the seat body along the XY plane by controlling the electrical signals in the four SMA wires. Since the second support 414 and the first support 415 carrying the lens can simultaneously translate relative to the base 413, the SMA driving assembly can drive the lens assembly to translate, so that the camera module realizes optical anti-shake.

[0234] The arrangement mode of the movable clamping jaw 4213, the fixed clamping jaw 4211 and the SMA wire 4212 of the second driving mechanism 421 has multiple cases.

[0235] As Figure 8b and Fig Figure 8c , Figure 8b shows an exploded view of the second driving mechanism and other structural parts, Figure 8c is a visible view of the structure shown in Fig. Figure 8b after rotating 180°.

[0236] In combination with Figure 8b and Figure 8c , the fixed clamping jaw 4211 is located on the lower surface of the base 413 and is fixedly connected with the base 413. It can be understood that the base 413 has opposite upper and lower surfaces, the upper surface is close to the light entrance side of the light, and the lower surface is close to the light exit side of the light, and the fixed clamping jaw 4211 is fixed on the lower surface of the base 413.

[0237] As Figure 8b and Figure 8c , part of the movable clamping jaw 4213 is located on the lower surface of the second support 414 and is fixedly connected with the second support 414. The lower surface of the second support 414 can be understood as the surface close to the light exit side of the light.

[0238] As Figure 9 , Figure 9 is an implementable structure of the movable clamping jaw 4213 given in the present application, wherein the movable clamping jaw 4213 comprises a first part 4213A and a second part 4213B, and a third part 4213C connecting the first part 4213A and the second part 4213B, the first part 4213A and the second part 4213B are located on the lower surface of the base 413 and are connected with the SMA wire 4212 respectively, and the third part 4213C is located on the lower surface of the second support 414 and is fixedly connected with the second support 414.

[0239] In order to make the third part 4213C of the movable clamping jaw 4213 fixedly connected with the second support 414, as Figure 8b and Figure 8c , a cavity 422 can be formed on the base 413, the second support 414 is provided with an extension 423 which can pass through the cavity 422, the third part 4213C protrudes towards the cavity 422, and the third part 4213C extends below the extension 423 and is fixedly connected with the extension 423. In Figure 8b and Figure 8c , two black dashed lines show the connection relationship between the extension 423 and the movable clamping jaw 4213.

[0240] Continuing to refer to Figure 8b and Figure 8c , the SMA wire 4212 is located on the lower surface of the base 416, and in the example of the present application, the extension direction of the SMA wire 4212 is parallel to the extension direction of the side edge of the base.

[0241] When the camera module performs optical image stabilization, the first support 415 carrying the lens assembly and the second support 414 will move relative to the base 413, and there is a friction force between the first support 415 and the base 413, the size of the friction force affects the camera effect, for example, when the friction force is large, the preview image of the camera module will have weak jitter.

[0242] The following briefly introduces how the friction force affects the camera quality.

[0243] In the second driving mechanism, the position control of the lens is realized by the actual length difference of the two opposite SMA wires, the length of the SMA wire is related to the resistance, and within a certain range, the length of the SMA wire is linearly related to the resistance, that is, the longer the length of the SMA wire, the greater the resistance, and therefore, when different driving control signals are given to the four SMA wires shown, the resistance difference of the two opposite SMA wires can be used as the feedback signal of the length difference of the SMA wires.

[0244] Because of the friction between the second support 414 and the base 413, the target position of the control signal deviates from the actual moving position of the lens, so the resistance feedback signal and the driving control signal constantly feedback and compensate. Therefore, when there is a large friction force in the opposite direction of the movement direction, the lens should move accurately to a certain position, but actually it is still a little bit. At this time, the control system detects that the lens has not moved to the theoretical position through the resistance, and then increases the driving signal to increase the tension of the SMA wire a little bit, so that the lens moves to the theoretical position, and because of the friction, the compensation is larger than when there is no friction. But the compensation may be overcompensation, when the compensation is too large, it will reduce the driving force of the SMA wire, at this time the lens will move in the opposite direction, thereby approaching the theoretical position, at this time the direction of the friction changes, the influence on the compensation effect will be greater than when there is no friction. The existence of friction will reduce the control accuracy and compensation accuracy, because the resistance feedback-compensation is real-time, that is, the above compensation actions are continuously performed, and the final result is that the actual lens position will fluctuate around the theoretical position, resulting in a weak jitter in the preview image of the camera module. Because of the existence of friction, the degree of jitter is more serious than when there is no friction or the friction is small.

[0245] In order to reduce friction and weaken jitter, some structures that can reduce the friction coefficient of the second support 414 during movement are provided in the embodiments of the present application, so as to improve the optical anti-shake performance and improve the image quality.

[0246] As shown in Figure 10 , Figure 10 An exemplary exploded view of the base 413 and the second support 414 is shown. A plurality of balls 424 are arranged between the second support 414 and the base 413, and when the second driving mechanism drives the second support 414 and the first support 415 to move relative to the base 413 along the XY plane perpendicular to the optical axis, the second support 414 can slide along the plurality of balls 424.

[0247] By arranging a plurality of balls 424 between the base 413 and the second support 414, the friction coefficient during movement of the second support 414 can be reduced, the stroke control accuracy of the second driving mechanism is higher, the jitter of the lens can be reduced, and the shooting effect is improved.

[0248] The plurality of balls in the embodiments of the present application have various arrangement modes, for example, in Figure 11 the example, an inlaid groove 425 can be arranged on the second support 414, the balls are arranged in the inlaid groove 425 and can roll in the inlaid groove 425. For another example, an inlaid groove can also be arranged on the side of the base 413 facing the second support 414, and the balls are arranged in the inlaid groove.

[0249] As shown in Figure 11The inlaid groove 425 of the example is arranged on the second support 414, and the part of the ball 424 protruding from the inlaid groove 425 is located in the inlaid groove 425. The part of the ball 424 protruding from the inlaid groove 425 is in contact with the base 413.

[0250] In the process of performing optical image stabilization, in order to improve the stability of the movement of the second support 414 relative to the base 413, as Figure 11 , a plurality of groups of balls are included, each group of balls includes a plurality of balls, and the plurality of groups of balls can be arranged at intervals along the circumference of the second support 414, so that the second support 414 can move smoothly.

[0251] In the example, Figure 11 , the first group of balls 424A, the second group of balls 424B, and the third group of balls 424C are arranged at intervals along the circumference of the second support 414.

[0252] As Figure 11 , the connection of the first group of balls 424A, the second group of balls 424B, and the third group of balls 424C can form a triangle, such as an equilateral triangle. By using the stability of the triangle, the smoothness of the movement of the second support 414 can be further improved.

[0253] In some implementable structures, the number of balls in each group can be the same or different.

[0254] The arrangement of the plurality of balls in each group of balls can be the same or different.

[0255] In the example of the present application, when the second support 414 moves relative to the base 413, in order to reduce the risk of tilting of the second support 414 under the action of its own gravity, as Figure 12 , the Figure 12 The exploded view shown is a structure diagram with the light entrance side below and the light exit side above. In this example, a magnetic attraction structure 426 can also be provided between the base 413 and the second support 4144. It can be understood that, as Figure 14 , a second magnetic component 426 is arranged between the two surfaces of the base 413 opposite the seat body 414.

[0256] When the second driving mechanism drives the second support 414 to slide along the plurality of balls in the XY plane, the second magnetic component 426 generates a magnetic attraction force F between the base 413 and the second support 414. By using the magnetic attraction force F, the second support 414 during movement can have an attractive force towards the base 413, so that the probability of tilting of the moving second support 414 can be reduced.

[0257] In some examples, asFigure 13 The second magnetic component 426 can include a magnetic piece 426A and a magnet 426B. One of the magnetic piece 426A and the magnet 426B is arranged on the base 413, and the other is arranged on the second support 414. For example, in Figure 13 , the magnet 426B is arranged on the base 413, and the magnetic piece 426A is arranged on the second support 414.

[0258] The magnetic piece 426A and the magnet 426B have a gap therebetween. With the attraction between the magnetic piece 426A and the magnet 426B, the second support 414 is facilitated to move smoothly in the XY plane.

[0259] To reduce the area occupied by the magnet and the magnetic piece, for example, as Figure 13 , a seating groove can be arranged in the base 413, and the magnet 426B is arranged in the seating groove.

[0260] In some other examples, a mounting groove can also be arranged in the second support 414, and the magnetic piece 426A is arranged in the seating groove of the second support. In this way, the space occupied by the magnetic piece 426A and the magnet 426B is reduced, and the thickness of the entire camera motor is reduced.

[0261] The second magnetic component 426 can be arranged in multiple groups, and the multiple groups of the second magnetic component 426 are arranged along the circumference of the second support 414. For example, the multiple groups of the second magnetic component can be symmetrically arranged about the optical axis O1-O2 of the lens.

[0262] In some structures, when there are multiple groups of balls and multiple groups of the second magnetic component, for example, Figure 14 , a group or multiple groups of the second magnetic component 426 can be arranged between two adjacent groups of balls 424. The multiple groups of balls and the multiple groups of the second magnetic component can be alternately arranged along the circumference of the second support 414. In this way, the smoothness of the movement of the second support can be further improved, the shaking can be further weakened, and the quality of the captured image can be optimized.

[0263] See Figure 15 and Figure 16 , Figure 15 and Figure 16 The structure of the camera driving motor is shown from different angles. In the examples of the present application, the camera driving motor can further include a first spring arm 427, a portion of the first spring arm 427 is connected to the second support 414, and the other portion is connected to the base 413.

[0264] In some examples, for example, Figure 17 , Figure 17An example structure of the first spring arm 427 is shown. The first spring arm 427 can have an L-shaped structure. The first spring arm 427 includes a first section 4271 and a second section 4273, and a connecting portion 4272 connecting the first section 4271 and the second section 4273.

[0265] Continuing to see Figure 17 , the end of the first section 4271 away from the connecting portion 4272, and the end of the second section 4273 away from the connecting portion 4272, are connected to the second support 414 that can move, which can be referred to as a movable end 427A, and the connecting portion 4272 is connected to the base 413, which can be referred to as a fixed end 427B.

[0266] In some mounting manners, the first spring arm 427 can be arranged between two surfaces of the base 413 and the second support 414 that are opposite to each other.

[0267] In some other mounting manners, as Figure 18 , the first spring arm 427 can be arranged on the side of the second support 414 away from the base 413.

[0268] Since the first spring arm 427 is fixedly connected to the base 413, as Figure 18 , a boss 428 can be arranged on the base 413, the boss 428 extends towards the second support 414, and the connecting portion 4272 of the first spring arm 427 is fixedly connected to the boss 428, so that the first spring arm 427 is fixedly connected to the base 413.

[0269] In the embodiments of the present application, the first spring arm 427 can balance and buffer the stress of the second support 414 when the SMA wire drives the first support 415, the second support 414 and the lens assembly to move to realize the anti-shake, so that the movement of the second support 414 is more stable.

[0270] In addition, the first spring arm can also drive the second support 414 and the first support 415 carrying the lens assembly to move to the initial position through the elastic force generated by the deformation of the first spring arm in the process of driving the second support to move by the SMA wire when the SMA wire is powered off.

[0271] In some examples, returning to Figure 15 and Figure 16 , two first spring arms 427 can be included, and the two first spring arms can be symmetrically arranged about the O1-O2 of the lens, so that the two first spring arms symmetrically arranged can generate the same deformation amount when the second support 414 moves.

[0272] See Figure 15As shown, the two first spring arms can be referred to as spring arm A and spring arm B, respectively. The first section 4271 of spring arm A is parallel to the first side of the second bracket 414, and the second section 4273 of spring arm A is parallel to the second side of the second bracket 414. The first section 4271 of spring arm B is parallel to the third side of the second bracket 414, and the second section 4273 of spring arm B is parallel to the fourth side of the second bracket. The first side is opposite to the third side, and the second side is opposite to the fourth side.

[0273] This can be understood as follows: the first section of spring arm A is positioned opposite to the first section of spring arm B, and the shape of the first section of spring arm A can be the same as the shape of the first section of spring arm B; the second section of spring arm A is positioned opposite to the second section of spring arm B, and the shape of the second section of spring arm A can be the same as the shape of the second section of spring arm B; this allows the two spring arms to be symmetrically arranged about the optical axis of the lens, thereby making the elastic force symmetrical.

[0274] In the embodiments of this application, such as Figure 19 and Figure 20 , Figure 20 It is self Figure 19 This is a view taken from the lower surface of the base 413. The second drive mechanism, including the moving jaw 4213, the fixed jaw 4211, and the SMA line 4212, is located on the side of the base 413 opposite to the second support 414. The ball bearing 424, used to reduce the coefficient of friction of the second support 414, can be understood as being located on the upper surface of the base 413. The fixed jaw 4211 and the SMA line 4212 are located on the lower surface of the base 413. The first spring arm 427 is located on the side of the second support 414 opposite to the base 413. In other words, the second drive mechanism 421, the ball bearing 424, the second magnetic component 426, and the first spring arm 427 are not centrally located, but rather distributed in different positions. This allows for full utilization of space at different locations and avoids interference between multiple structural components.

[0275] like Figure 21 As shown, Figure 21 The positional relationship between the second bracket 414, the first bracket 415, and the lens assembly 40 is simplified. Because the camera drive motor is located in its thickness direction (e.g., ... Figure 21 The thickness of the camera drive motor needs to be smaller and smaller as terminal devices become smaller and thinner. Alternatively, when the camera drive motor is not working, that is, when the camera drive motor does not perform either autofocus or image stabilization, the thickness of the camera drive motor is smaller. When the camera drive motor is working, it can be adjusted to a preset thickness to ensure the normal use of autofocus and image stabilization.

[0276] In some embodiments, the electronic device can include a pre-press driving mechanism and a cover plate. The cover plate is arranged on the side of the variable aperture 20 away from the lens assembly 40.

[0277] When the camera driving motor is not working, as shown in Figure 21 (a), the pre-press driving mechanism can apply a pre-press force F to the cover plate, which is transmitted to the first support 415 and the lens assembly 40 through the cover plate and the variable aperture in turn, so as to compress the thickness dimension of the entire camera driving motor, for example, the first support 415 and the lens assembly 40 can be pressed to the first position. Figure 21 When the camera driving motor needs to work, as shown in (b), the first support 415 and the lens assembly 40 can be moved to the second position, and the direction from the first position to the second position is along the optical axis O1-O2 of the lens, and the first position is closer to the second support 414 than the second position.

[0278] In this way, when the first support 415 and the lens assembly 40 are compressed to the first position, the thickness dimension of the entire camera driving motor can be compressed, and when the first support 415 and the lens assembly 40 are moved to the second position, the normal use of the automatic focusing and the anti-shake compensation is ensured.

[0279] Figure 21 In some camera driving mechanisms, as shown in (a) and (b), the distance X1 between the first position and the second position can reach 500 μm or more, so that the thickness dimension of the camera driving motor when not working can be obviously compressed.

[0280] When the camera driving motor needs to work, the pre-press force F of the pre-press driving mechanism of the electronic device to the cover plate is removed, so that the first support 415 and the lens assembly 40 are ejected.

[0281] Figure 21 In some embodiments, in order to make the first support 415 and the lens assembly 40 move from the first position to the second position, in the examples of the present application, as shown in , a resilient member 50 can be arranged in the camera driving motor, and the resilient member 50 is used to provide the elastic force f for the first support 415 and the lens assembly 40 to move from the first position to the second position.

[0282] Figure 21 When the automatic focusing needs to be performed, as shown in (b) and (c), the first support 415 carrying the lens assembly 40 can be moved between the second position and the third position under the driving of the first driving mechanism to realize focusing, wherein the second position is between the first position and the third position.

[0283] When the first bracket 415 and the lens assembly 40 move between the second position and the third position, the first bracket 415 separates from the elastic member 50, and the elastic member 50 does not exert elastic force on the first bracket 415 and the lens assembly 40.

[0284] like Figure 22 and Figure 23 As shown, Figure 22 One installation method for the elastic element 50 is shown. Figure 23 yes Figure 22 An exploded view is shown. In this example, the elastic element 50 can be disposed below the first bracket 415. When the first bracket 415 and the lens assembly 40 are in the first position, the first bracket 415 contacts the elastic element 50, causing the elastic element 50 to deform and generate a spring force from the first position to the second position. Under the action of the spring force of the elastic element 50, the first bracket 415 and the lens assembly 40 can move from the first position to the second position in a direction away from the base.

[0285] In some examples, such as Figure 24 The elastic member 50 includes a first lug 501 and a second lug 502, and an elastic segment 503 connected between the first lug 501 and the second lug 502.

[0286] like Figure 23 The first ear 501 and the second ear 502 can be fixed on the second bracket 414, and the elastic segment 503 can extend to the side of the first bracket 415 near the base 413.

[0287] For example, see Figure 23 A protrusion 51 can be provided on the side of the first bracket 415 facing the base. Under the pre-pressure F applied by the pre-pressure drive mechanism to the first bracket 415 and the lens assembly 40, when the first bracket 415 carrying the lens assembly 40 moves along the optical axis O1-O2 to the first position, the elastic segment 503 of the elastic member 50 will contact the protrusion 51, causing the elastic segment 503 to deform and generate a spring force from the first position to the second position. When the pre-pressure F applied by the pre-pressure drive mechanism to the first bracket 415 and the lens assembly 40 is removed, the spring force of the elastic segment 503 can move the first bracket 415 and the lens assembly 40 from the first position to the second position.

[0288] like Figure 22 and Figure 23 In some examples, multiple elastic elements 50 may be included, which may be symmetrically arranged about the optical axis O1-O2 so that the elastic force is symmetrical, and the first support 415 and the lens assembly 40 move stably under the action of the symmetrical elastic force.

[0289] In some camera driver mechanisms, return to Figure 21 ,like Figure 21The distance X2 between the second position and the third position of the camera module in the automatic focusing process can reach 1000 μm or more. In addition, the distance X1 between the first position and the second position can reach 500 μm or more, so that the stroke (X1+X2) of the first support and the lens assembly moving between the first position and the third position reaches 1500 μm or more.

[0290] It can be understood that, in the example of the present application, the stroke of the first support 415 carrying the lens assembly 40 includes not only the buffer stroke under the elastic force of the elastic member 50, but also the focusing stroke under the driving force of the first driving mechanism. Compared with only including the focusing stroke, the stroke of the lens assembly 40 and the first support 415 in the example of the present application is larger.

[0291] In order to improve the stability of the movement of the first support 415 carrying the lens assembly 40 in the larger stroke, as shown in Figure 25 and Figure 26 The camera driving motor can further include a slide rod 53, the axial direction of the slide rod 53 being consistent with the optical axis O1-O2 direction of the lens, the slide rod 53 being fixed relative to the second support 414, and the first support 415 being in sliding connection with the slide rod 53.

[0292] In the buffer stroke and in the focusing stroke, that is, when the first support 415 and the lens assembly 40 move between the first position and the third position as shown in Figure 21 , the slide rod 53 serves as a guide structure, and the first support 415 slides along the axial direction of the slide rod 53, so as to ensure that the movement track of the first support 415 and the lens assembly 40 is substantially planar motion.

[0293] In Figure 27 , an example of one kind of setting mode of the slide rod 53 is given. A guide groove 55 is formed on the first support along the optical axis O1-O2 direction of the lens, and the slide rod 53 is slidingly arranged in the guide groove 55.

[0294] In order to further improve the relative motion speed between the slide rod 53 and the guide groove 55, in some implementations, a lubricating structure can be arranged in the guide groove 55. For example, lubricating oil can be filled in the guide groove 55; for another example, a film layer structure with a small friction coefficient can be formed on the inner wall surface of the guide groove 55.

[0295] In order to improve the stability of the sliding of the first support 415 relative to the slide rod 53 when the first support 415 carrying the lens assembly 40 moves relative to the second support 414, a plurality of slide rods 53 can be arranged in the camera driving motor. For example, as shown in Figure 25 and Figure 26In an example, the slide rods A and B can be arranged along the circumference of the first support 415, and the slide rods A and B are arranged in the corresponding guide grooves.

[0296] In some examples, more slide rods can be arranged, and the slide rods can be uniformly distributed along the circumference of the first support 415. The slide rods can be symmetrically arranged about the optical axis O1-O2 of the lens, so that the movement is more stable when the lens is focused.

[0297] In some structures, as shown in Figure 26 , the first support 415 has a slide groove 531 that is in sliding cooperation with the slide rod 53. When the first support 415 slides along the axial direction of the slide rod 53, the slide rod 53 is in contact with the slide groove. The slide rod 53 is in abutment with the slide groove 531, which plays a positioning role in the movement of the slide rod 53, and guarantees that the first support 415 moves linearly along the axial direction of the slide rod 53.

[0298] In some structures that can be implemented, a plurality of slide rods 53 and a plurality of elastic members 50 can be included. The plurality of slide rods 53 and the plurality of elastic members 50 can be alternately arranged along the circumference of the first support 415. That is, one elastic member 50 can be arranged between two adjacent slide rods 53, and one slide rod 53 can be arranged between two adjacent elastic members 50.

[0299] In order to further enable the first support 415 that carries the lens assembly 40 to move linearly along a direction parallel to the optical axis O1-O2 of the lens relative to the second support 414, in the embodiment of the present application, as shown in Figure 26 and Figure 27 , a first magnetic component 54 is further added. The first magnetic component 54 can generate an attractive force between the first support 415 and the second support 414, and the attractive force has a component that is perpendicular to the optical axis O1-O2 of the lens. In this way, when the first driving mechanism drives the first support 415 and the lens assembly 40 to move along the optical axis O1-O2 of the lens, the first support 415 can slide linearly along the axial direction of the slide rod 53 under the attraction of the attractive force.

[0300] In some examples, as shown in Figure 27 , the first magnetic component 54 can include a magnet, and the magnet is fixed on the first support 415 and arranged close to the slide rod 53. For example, the slide rod 53 can be a metal structural member with magnetism, and the magnet and the slide rod generate an attractive force f. The attractive force f is used to enable the first support 415 to tightly hold the slide rod 53 during the movement, so as to slide along the axial direction of the slide rod 53. Alternatively, the slide rod 53 can be a non-magnetic structural member, such as a ceramic, and a material with magnetism can be formed on the outer wall surface of the ceramic.

[0301] In some examples, the first magnetic component 54 can include a first magnet fixed on the first support 415 and a second magnet fixed on the second support 414, and the first magnet and the second magnet can generate a magnetic attraction force between them, and the magnetic attraction force has a component perpendicular to the slide rod 53, and the component is used to make the first support 415 tightly hold the slide rod 53 and slide smoothly.

[0302] Referring to Figure 27 When the slide rod is tightly held by the magnets, the installation cavity 56 can be arranged at a position of the first support 415 beside the slide rod 53, and the magnets are arranged in the installation cavity 56, for example, the magnets can be arranged in the installation cavity 56 by the adhesive layer 57.

[0303] In some examples, as Figure 26 the slide rod 53 is arranged close to the coil and the magnet of the focus driving unit, and the magnets of the first magnetic component 54 are arranged close to the slide rod 53, the coil and the magnet of the focus driving unit can generate electromagnetic induction, and the magnets of the first magnetic component 54 and the slide rod 53 can generate magnetic attraction.

[0304] In order to avoid the electromagnetic induction between the coil and the magnet of the focus driving unit and the magnetic attraction between the magnets of the first magnetic component and the slide rod, as Figure 26 the magnets of the first magnetic component 54 are farther away from the focus driving unit than the slide rod 53, so that the mutual interference between them can be weakened.

[0305] In the examples of the present application, even if the first support 415 carrying the lens assembly 40 has a large stroke, such as the above-mentioned buffer stroke and the focus stroke under the driving force of the first driving mechanism, the movement trajectory of the first support 415 carrying the lens assembly 40 can be made to be substantially along the optical axis O1-O2 under the action of the slide rod 53 and the first magnetic component 54, and the risk of deviation of the lens assembly in a large stroke can be reduced.

[0306] In the examples of the present application, a position sensor can also be included, and the position sensor is used to detect the position of the first support 415 relative to the slide rod 53.

[0307] In examples, the position sensor can be an electromagnetic transducer, and when the first support 415 carrying the lens assembly moves to focus relative to the second support 414, the electromagnetic transducer is used to sense the change of magnetic flux to convert into the change of output signal, so as to determine the position of the lens.

[0308] In some examples, a detection magnet can be arranged on the first holder 415 opposite to the electromagnetic sensor. When the first holder 415 with the lens assembly and the detection magnet moves along the optical axis O1-O2 of the lens, the electromagnetic sensor senses the change of the magnetic flux of the detection magnet to determine the position of the lens.

[0309] In some examples, the detection magnet in the position sensor 11 can be shared with the magnet in the first driving mechanism, which can simplify the structure.

[0310] Please refer to Figure 28 , Figure 28 is an internal circuit diagram of the electronic device. In the embodiments of the present application, the electronic device further includes a first driving chip 803. In some embodiments, the first driving chip 803 can be arranged on the mainboard, and the electromagnetic sensor in the position sensor 11 can be arranged on the first holder. Of course, the electromagnetic sensor and the first driving chip 803 can also be arranged on other structures in the electronic device, such as the circuit board where the universal serial bus (USB) device is located, Figure 28 Only an example of electrical connection between the electromagnetic sensor and the first driving chip 803 is given, which cannot be considered as a special limitation to the present application.

[0311] The position sensor 11 is used to detect the position of the lens.

[0312] As Figure 29 , the camera driving motor in the example of the present application can further include a second spring arm 58, part of which is connected to the second holder 414 and part of which is connected to the first holder 415. When the lens assembly 40 and the first holder 415 and the variable aperture move along the optical axis O1-O2 of the lens during the automatic focusing of the camera module, the second spring arm 58 deforms, balances and buffers the stress of the variable aperture and the lens assembly, so that the movement of the variable aperture and the lens assembly is more stable.

[0313] In some examples, as Figure 29 , a plurality of second spring arms 58 can be included, which are arranged in a circumferential direction along the first holder 415. For example, the plurality of second spring arms can be symmetrically arranged about the optical axis O1-O2 of the lens. When the lens assembly, the variable aperture and the first holder move along the optical axis O1-O2 of the lens, the plurality of second spring arms can produce the same deformation amount and provide symmetrical elastic force.

[0314] Figure 30This application provides an embodiment of a second spring arm 58. The second spring arm 58 includes a first branch arm 581 and a second branch arm 582. The first branch arm 581 and the second branch arm 582 can be arranged close to each other. One end of each branch arm is connected to the first bracket 415, and the other end is connected to the second bracket 414.

[0315] Through such Figure 30 The multiple separate branches can further balance and buffer the forces on the variable aperture and lens assembly, making the movement of the variable aperture and lens assembly smoother.

[0316] like Figure 31 and Figure 32 As shown, Figure 32 yes Figure 31 An exploded view of the second bracket 414 and the first bracket 415. The second bracket 414 of this application example may include a main body portion 414A and an extension portion 414B. The extension portion 414B is disposed on the side of the main body portion 414A near the base. The extension portion 414B extends circumferentially away from the main body portion 414A along its outer edge, thus forming a gap between the main body portion 414A and the extension portion 414B. Figure 31 and Figure 32 The steps shown.

[0317] Using the second bracket with steps as exemplified in this application, a space can be formed around the main body 414A, and other structural components in the camera module can be arranged in this space.

[0318] In some structures, the main body 414A and the extension 414B can be integrally formed structural parts.

[0319] See Figure 31 and Figure 32 Along the optical axis O1-O2 of the lens, the main body 414A and the extension 414B have a depth dimension, and a receiving cavity is formed inside the main body 414A and the extension 414B, and the first bracket 415 is disposed in the receiving cavity.

[0320] In some examples, the coil and magnet of the first drive mechanism, as well as the slide bar and the first magnetic component, may be disposed in the space between the first bracket 415 and the main body 414A.

[0321] In some examples, there is a gap between the extension 414B and the base, within which the fixed jaw, moving jaw, and SMA line of the second drive mechanism can be positioned.

[0322] Multiple balls for reducing the coefficient of friction of the second support 414 relative to the base 413, and a second magnetic component for providing magnetic attraction between the second support 414 and the base 413 may also be provided in the gap.

[0323] Alternatively, in some examples, the detent pawl, the driver pawl, and the SMA wire can be disposed on a side of the base 413 facing away from the second bracket 414.

[0324] In the camera module, an electrical connection structure is needed to electrically connect the drive mechanism of the variable aperture, the first drive mechanism, the second drive mechanism, etc. with the circuit board of the camera module.

[0325] For example, the circuit structure can be formed on the second bracket 414, and the circuit structure can be formed on the base 413. The circuit structure on the second bracket 414 and the circuit structure on the base 413 are electrically connected with the circuit board of the camera module, so that the drive mechanism of the variable aperture, the first drive mechanism, the second drive mechanism, etc. form a drive path with the circuit board.

[0326] As shown in Figure 33 and Figure 34 , an example of an electrical connection structure is provided, which is a flexible structure. The electrical connection structure can include a second spring arm 58, which includes a first end 58A and a second end 58B. The second end 58B of the second spring arm 58 can be electrically connected with the drive mechanism of the variable aperture. For example, when the drive mechanism of the variable aperture includes a coil and a magnet, the second end 58B of the second spring arm 58 can be electrically connected with the coil of the variable aperture.

[0327] In Figure 33 some examples, two second spring arms 58 are included, each of which includes two branches, each of which has a second end 58B. In this way, the two second spring arms 58 have four second ends 58B electrically connected with the coil of the variable aperture.

[0328] When the drive mechanism of the variable aperture includes four coils, two of the four second ends 58B are electrically connected with two of the four coils, and the other two of the four second ends 58B are electrically connected with the remaining two of the four coils.

[0329] In some examples, as shown in Figure 34 and Figure 33 , a conductive structure such as a wire can be disposed on the second bracket 414 to electrically connect with the flexible printed circuit (FPC) 61.

[0330] The conductive structure has various implementations. For example, the conductive lead can be formed by electroplating; for another example, the conductive lead can be formed by embedding metal through insert molding.

[0331] For example, as shown in Figure 34 and Figure 33 , the conductive structure can be formed on the second bracket 414, and the conductive structure can be formed on the base 413. The conductive structure on the second bracket 414 and the conductive structure on the base 413 are electrically connected with the circuit board of the camera module, so that the drive mechanism of the variable aperture, the first drive mechanism, the second drive mechanism, etc. form a drive path with the circuit board.The first end 58A of the second spring arm 58 can be electrically connected with the first FPC 61 through a third conductive lead 622 arranged on the second support 414. In this way, the variable aperture can be electrically connected with the first FPC 61 through the second spring arm 58 and the third conductive lead 622 arranged on the second support 414, and the first FPC 61 is electrically connected with the circuit board of the camera module, so that the circuit board of the camera module and the coil of the variable aperture form a driving path.

[0332] It can be understood that the second spring arm 58 in the examples of the present application not only has the functions of buffering and balancing lens movement stability, but also has the function of electrical connection.

[0333] In some implementable structures, see Figure 34 and Figure 33 The coil in the focusing driving unit can be electrically connected with the first FPC through a conductive structure arranged on the second support 414, for example, a first conductive lead 621 formed by embedding metal through insert molding is used to electrically connect the coil in the first driving mechanism with the first FPC, and the first FPC is electrically connected with the circuit board of the camera module, so that the circuit board of the camera module and the coil in the first driving mechanism form a driving path.

[0334] In the examples of the present application, the position sensor 11 can be electrically connected with the first FPC through a third conductive lead 622 as shown in Figure 34 .

[0335] In some embodiments, as shown in Figure 34 and Figure 33 , the first FPC 61 can include a first part 611 and a second part 612. The first part 611 can be arranged between the first support 415 and the second support 414 and opposite to the coil of the focusing driving unit, and the second part 612 is arranged around the periphery of the base 413 and the second support 414 and is electrically connected with the circuit board in the electronic device.

[0336] In the examples of the present application, the second driving mechanism includes an SMA driving assembly for optical image stabilization. In order to form a driving path between the SMA driving assembly and the circuit board of the camera module, the electrical connection structure of the SMA driving assembly is shown in Figure 34 , Figure 35 . The SMA driving assembly includes a plurality of connection terminals, for example, the plurality of connection terminals can include a signal connection terminal 64 electrically connected with the fixed jaw 4211. In some implementable structures, a second conductive lead 63 can be formed by embedding metal through insert molding, and the signal connection terminal 64 is electrically connected with the fixed jaw 4211 through the second conductive lead 63.

[0337] As shown in Figure 35 The SMA driving assembly includes four fixed clamping claws 4211, which are respectively electrically connected to corresponding signal connection terminals 64 through second conductive leads 63. The signal connection terminals 64 are electrically connected to a circuit board in the camera module. In this way, the circuit board of the camera module and the fixed clamping claws in the second driving mechanism form a driving path.

[0338] As shown in Figure 35 and Figure 36 The plurality of connection terminals further include a ground connection terminal 65, which can be electrically connected to the first spring arm 427 through a ground lead 66. The ground lead 66 can be formed into a conductive lead by electroplating or by embedding metal through insert molding.

[0339] In the embodiments of the present application, the first spring arm 427 not only has the functions of buffering and balancing the movement stability of the second bracket, but also has a grounding function.

[0340] In the embodiments, the electrical connection structure includes a first FPC 61, a first conductive lead 621, a first spring arm 427, a second conductive lead 63, and a ground lead 66. The first FPC 61 is arranged on the second bracket 414 and electrically connected to a module circuit board 80. The first conductive lead 621 is arranged on the second bracket 414, with a first end electrically connected to the first driving mechanism 418 and a second end electrically connected to the first FPC 61. The first spring arm 427 has a first end connected to the second bracket 414 and a second end fixed to the base 413. The second conductive lead 63 is arranged on the base 413, and the second driving mechanism 421 is electrically connected to the module circuit board 80 through the second conductive lead 63. The ground lead 66 is arranged on the base 413, with one end electrically connected to the second end of the first spring arm 427 and the other end electrically connected to the module circuit board 80 of the camera module 10. The second spring arm 58 has a first end electrically connected to the variable aperture 20 and a second end fixed to the first bracket 415.

[0341] In some embodiments, the module circuit board 80 is provided with a first driving chip 803. The first driving mechanism 418 is electrically connected to the first FPC 61 through the first conductive lead 621 and electrically connected to the first driving chip 803 through the first FPC 61.

[0342] In some embodiments, the second driving mechanism 421 is electrically connected to the first driving chip 803 through the second conductive lead 63.

[0343] In some embodiments, the camera module 10 further comprises a position sensor 11 configured to detect the position of the second support 414 relative to the base 413, and the position sensor 11 is electrically connected to the first driving chip 803 through the first FPC 61.

[0344] In some embodiments, the electrical connection structure further comprises a third conductive lead 622 disposed in the second support 414, and the variable aperture 20 comprises a second driving chip 28 and a second FPC 27, the third driving mechanism 24 is electrically connected to the second driving chip 28, the second driving chip 28 is electrically connected to the second FPC 27, the first end of the second spring arm 58 is connected to the second FPC 27, and the second end of the second spring arm 58 is electrically connected to the first FPC 61 through the third conductive lead 622, so that the second driving chip 28 is electrically connected to the module circuit board 80 through the second FPC 27, the second spring arm 58, the third conductive lead 622 and the first FPC 61.

[0345] In order to increase the mechanical strength of the entire camera module, as shown in Figure 37 and Figure 40 , a plurality of supports 68 can be provided, for example, the support 68 can be embedded in the second support 414 by a method of embedding metal through insert molding to enhance the strength of the second support 414.

[0346] In some structures, as shown in Figure 41 , a plurality of supports 68 can be arranged along the circumference of the second support 414.

[0347] As shown in Figure 41 , a reinforcing plate 69 can be provided on the surface of the second support 414, and the end portion 681 of the support 68 embedded in the second support 414 can be connected to the reinforcing plate 69 to further enhance the strength of the second support 414.

[0348] Alternatively, in some examples, the support 68 can be made of a metal material, and the support 68 is electrically connected to the grounding lead 66 for grounding as shown in Figure 41 .

[0349] Figure 37 The variable aperture 20 can adjust the amount of light entering the camera module 10, and the structure of the variable aperture 20 is described below. In some embodiments of the present application, as shown in Figure 3As shown, the variable aperture 20 includes a base 21, a carrier 22, a plurality of blades 23, at least one third driving mechanism 24, and a cover 25. In an example, the third driving mechanism 24 can include a magnet assembly 241 and a coil 242. The cover 25 is disposed on the base 21, and a receiving space can be formed between the cover 25 and the base 21, in which the carrier 22, the blades 23, and the third driving mechanism 24 are located.

[0350] Based on this, as Figure 42 (For Figure 43 As shown in the exploded view of the variable aperture 20, the carrier 22 can be located in the base 21, and the carrier 22 is rotationally connected to the base 21. In this case, the carrier 22 can act as a mover in the variable aperture 20, and the carrier 22 can rotate around the optical axis O1-O2 relative to the base 21. The base 21 can act as a stator in the variable aperture 20, and the base 21 is in a stationary state relative to the carrier 22.

[0351] In an example, in order to set the carrier 22 in the base 21, as Figure 42 shown, the base 21 can include a bottom plate 211, a boss 212, and a side plate 213. The boss 212 can be disposed on the bottom plate 211, and the base 21 has a first light transmission hole 101 that can pass through the boss 212 and the bottom plate 211. In addition, the side plate 213 is disposed on the bottom plate 211, and the side plate 213 can be disposed around the periphery of the boss 212. The bottom plate 211, the boss 212, and the side plate 213 can be formed by a one-step manufacturing process, such as an injection molding process, and in this case, the bottom plate 211, the boss 212, and the side plate 213 are connected as an integral structure.

[0352] Based on this, the side plate 213, the sidewall of the boss 212, and the bottom plate 211 can enclose the first mounting groove 110. At least a portion of the carrier 22 can be located in the first mounting groove 110, and the carrier 22 located in the first mounting groove 110 can be disposed around the periphery of the first light transmission hole 101.

[0353] In this way, by providing the first mounting groove 110 on the base 21, the carrier 22 located in the first mounting groove 110 can be accommodated in the base 21, so that the thickness (in the Z direction) of the carrier 22 and the base 21 can be overlapped, achieving the purpose of reducing the thickness of the variable aperture 20.

[0354] On this basis, as Figure 44As shown, the rotating holder 22 can include a ring portion 221 and a lug 222 disposed on a side wall of the ring portion 221 and connected with the ring portion 221. For example, the lug 222 and the ring portion 221 are connected as an integral structure by an injection molding process. In addition, the magnet assembly 241 can be disposed on the lug 222 and connected with the lug 222, so that the magnet assembly 241 can be carried by the lug 222. In addition, the side plate 213 of the fixing seat 21 is provided with a first opening 130 penetrating the side plate 213 in a direction perpendicular to the bottom plate 211, and the first opening 130 is in communication with the first mounting groove 110.

[0355] In this case, as shown, Figure 44 the ring portion 221 of the rotating holder 22 is located in the first mounting groove 110 (as shown in Figure 45 ), and the ring portion 221 can be disposed around the periphery of the boss 212 of the fixing seat 21. In addition, the lug 222 of the rotating holder 22 and the magnet assembly 241 connected with the lug 222 can be located in the first opening 130 (as shown in Figure 44 ). In this way, by providing the first opening 130 on the side plate 213 of the fixing seat 21, the side plate 213 of the fixing seat 21 can be avoided from the position of the lug 222 of the rotating holder 22 and the magnet assembly 241 connected with the lug 222.

[0356] Based on this, the side wall of the first opening 130 (as shown in Figure 44 ) and the lug 222 can have a stroke gap L as shown in Figure 44 . Therefore, the opening length of the first opening 130 in the rotating direction of the rotating holder 22 can be the rotating stroke of the rotating holder 22. When the rotating holder 22 abuts against the side wall of the first opening 130, the rotating holder 22 rotates to the maximum stroke.

[0357] In addition, as shown in Figure 45 , the cover plate 25 is disposed on the side of the plurality of blades 23 away from the rotating holder 22. The plurality of blades 23 are disposed on the rotating holder 22, and the blades 23 can be slidingly connected with the rotating holder 22, and the blades 23 can also be rotatably connected with the fixing seat 21. The plurality of blades 23 are annularly distributed to surround the aperture hole 100.

[0358] For example, the variable aperture 20 can further include a first limiting column 121 disposed on the fixing seat 21 as shown in Figure 43 , and a second limiting column 122 disposed on the rotating holder 22. When the rotating holder 22 includes Figure 46The second limiting post 122 can be arranged on the annular part 221.

[0359] In addition, as shown in Figure 44 The blade 23 is provided with a rotating connecting hole 1210 and a sliding guide groove 1220. Figure 46 As shown in Figure 47 (see FIG. 8B) and a second limiting post 122 (see FIG. 8B) is arranged on the rotating support 22. Figure 48 (see FIG. 8B) and a second limiting post 122 (see FIG. 8B) is arranged on the rotating support 22. Figure 47 (see FIG. 8B) and a second limiting post 122 (see FIG. 8B) is arranged on the rotating support 22.

[0360] In this case, during the rotation of the rotating support 22 relative to the fixed seat 21 along the arc-shaped arrow direction in FIG. 8B, the second limiting post 122 on the rotating support 22 will move along the sliding guide groove 1220 on the blade 23, thereby pushing the blade 23 to rotate along the axis direction of the first limiting post 121. During the movement of the plurality of blades 23, the size of the aperture hole 100 changes. The two ends of the sliding guide groove 1220 are the limit positions of the second limiting post 122. When the second limiting post 122 slides to any one of the two limit positions, the aperture of the aperture hole 100 can change to the maximum aperture or the minimum aperture. Figure 46 In addition, as shown in

[0361] In addition, as shown in Figure 47 The aperture hole 100 can be in communication with the first light-transmitting hole 101, so that the light of the light-transmitting aperture hole 100 can pass through the first light-transmitting hole 101 and then be incident into the lens assembly 40. Figure 46 Accordingly, the minimum aperture of the aperture hole 100 can match the first limit aperture, for example, the minimum aperture, of the variable aperture 20. At this time, the light flux passing through the variable aperture 20 and entering the lens assembly 40 can be minimum. Conversely, in some embodiments of the present application, the maximum aperture of the aperture hole 100 can match the second limit aperture, for example, the maximum aperture, of the variable aperture 20. At this time, the light flux passing through the variable aperture 20 and entering the lens assembly 40 can be maximum.

[0362] Alternatively, in some other embodiments of the present application, as shown in Figure 3As shown, the variable aperture 20 may further include a second spacer 26, which is stacked on the side of the plurality of blades 23 facing the mounting base 21. The second spacer 26 has a third light-transmitting hole 103, which is connected to the aperture hole 100. Light passing through the aperture hole 100 can first pass through the third light-transmitting hole 103, and then through the first light-transmitting hole 101 on the mounting base 21 to enter the lens assembly 40 (e.g., ...). Figure 43 (As shown).

[0363] Therefore, the aperture of the third light-transmitting hole 103 can be matched with the second limit aperture setting of the variable aperture 20, such as the maximum aperture setting. At this time, the edge shape of the third light-transmitting hole 103 is closer to an ideal circle than the edge shape of the aperture hole 100 with the maximum aperture formed by the multiple blades 23. When the aperture hole 100 is in the maximum aperture state, the aforementioned blades 23 can be located outside the edge of the third light-transmitting hole 103, thereby avoiding obstruction of the third light-transmitting hole 103.

[0364] In addition, continue as Figure 3 As shown, in order to drive the rotating bracket 22 to rotate relative to the fixed base 21 along the optical axis O1-O2, the variable aperture 20 may further include a third driving mechanism 24, as described above. The magnet assembly 241 in this third driving mechanism 24 may be disposed on the side of the rotating bracket 22 away from the blade 23, and the magnet assembly 241 is connected to the rotating bracket 22. Based on this, in order for the coil 242 in the third driving mechanism 24 to be disposed opposite to the magnet assembly 241, the coil 242 may be disposed on the side of the magnet assembly 241 facing the fixed base 21.

[0365] In this way, since the magnet assembly 241 is connected to the rotating bracket 22 which acts as the mover, when the coil 242 is energized, the magnetic field generated by the coil 242 interacts with the magnetic field generated by the magnet assembly 241 to generate a force. This force enables the magnet assembly 241 to rotate relative to the coil 242, thereby driving the rotating bracket 22 connected to the magnet assembly 241 to rotate relative to the fixed base 21.

[0366] Based on this, in some embodiments of this application, in the same third drive mechanism 24, the vertical projection of the magnet assembly 241 on the rotating bracket 22 overlaps with the vertical projection of the coil 242 on the rotating bracket 22. In this way, the positions of the rotating bracket 22 and the coil 242 in the same third drive mechanism 24 correspond, thereby facilitating the magnetic field generated by the energized coil 242 to more easily interact with the magnetic field of the magnet assembly 241.

[0367] In some embodiments of this application, such as Figure 43As shown, the aforementioned magnet assembly 241 may include multiple magnets 2410, and the magnetic fields generated by the multiple magnets 2410 can all interact with the energized coil 242 (e.g., Figure 49 (As shown) Magnetic field interactions are generated, thereby increasing the strength of the magnetic field generated by the aforementioned magnet assembly 241. For example, the N poles of the plurality of magnets 241 in the aforementioned magnet assembly 241 can all be arranged along the Z direction, pointing from the N pole to the S pole. Figure 43 The N and S poles of magnet 241 are not shown in the figure. The upper and lower surfaces of magnet 2410 along the Z direction can be the N and S poles of magnet 2410 respectively.

[0368] Alternatively, as another example, the multiple magnets in the aforementioned magnet assembly 241 can be arranged as follows: Figure 49 The diagram shows a Halbach array structure. In this Halbach array structure, some magnets 2410a are arranged with their N poles pointing towards their S poles along the Z direction, while other magnets 2410b (the N and S poles of magnets 2410b are not shown in the diagram) are arranged with their N poles pointing towards their S poles along the horizontal plane (XY plane). Magnets 2410a and 2410b are arranged alternately. This results in a large magnetic field strength on the surface A of the magnet assembly 241 facing the coil 242, allowing a small current to flow through the coil 242, thus pushing the rotating support 22 connected to the magnet assembly 241, increasing the pushing force on the rotating support 22, and reducing power consumption.

[0369] In summary, the variable aperture 20 provided in the embodiments of this application, such as Figure 50 The rotating bracket 22 shown is located inside the fixed base 21, and the rotating bracket 22 is rotatably connected to the fixed base 21. Furthermore, Figure 46 The blade 23 shown is slidably connected to the rotating bracket 22, and is also rotatably connected to the fixed base 21. In this case, when the rotating bracket 22 rotates relative to the fixed base 21, the rotating bracket 22 can simultaneously cause the blade 23 to slide relative to the rotating bracket 22 and rotate relative to the fixed base 21. Based on this, during the rotation of the rotating bracket 22, the aperture of the aperture 100 surrounded by multiple ring-shaped blades 23 can change with the rotation of the rotating bracket 22, thereby adjusting the size of the aperture 100 and ultimately achieving the purpose of adjusting the aperture setting of the variable aperture 20.

[0370] Based on this, in order to drive the rotating bracket 22 to rotate, as described above, the third driving mechanism 24 includes the following: Figure 43The magnet assembly 241 and coil 242 are shown. The magnet assembly 241 is disposed on the side of the rotating bracket 22 away from the blade 23. The coil 242 is disposed on the side of the magnet assembly 241 facing the fixed base 21. In this case, by energizing the coil 242, the magnetic field generated by the coil 242 and the magnetic field generated by the magnet assembly 241 interact to generate a force, which can drive the magnet assembly 241 to rotate the rotating bracket 22 relative to the fixed base 21.

[0371] In this way, in the variable aperture 20 provided in this application embodiment, since the magnet assembly 241 is disposed on the rotating support 22, which serves as the mover, the variable aperture 20 can be a moving magnet type variable aperture 20. Based on this, the coil 242, which requires power supply, does not need to be disposed on the aforementioned mover (i.e., a moving coil type variable aperture), thereby simplifying the electrical connection structure of the variable aperture 20. Furthermore, in the embodiment provided in this application, by simply rotating the rotating support 22, which serves as the mover, in conjunction with the fixed base 21, which serves as the stator, multiple blades 23 can be moved by the rotating support 22 to achieve the adjustment of the aperture diameter 100, reducing the number of components used to adjust the aperture diameter of the variable aperture 20 and achieving the purpose of simplifying the structure of the variable aperture 20.

[0372] Based on this, such as Figure 43 As shown, by placing the rotating bracket 22 within the fixed base 21, the thickness (dimension along the Z direction) of the variable aperture 20 can be reduced. Furthermore, by placing the magnet assembly 241 on the side of the rotating bracket 22 away from the blade 23 and the coil 242 on the side of the magnet assembly 241 facing the fixed base 21, compared to placing the magnet and coil around the periphery of the rotating bracket, the area of ​​the variable aperture 20 in the XY surface (i.e., laterally) can be reduced, thereby achieving the goal of reducing the size of the variable aperture 20. In this case, by simplifying the structure of the variable aperture 20 and reducing its thickness and lateral area, the miniaturization of the entire camera module 10 is facilitated, and the integration of the electronic device is improved.

[0373] Furthermore, when the image sensor 802 in the aforementioned camera module 10 (such as...) Figure 46 When the image sensor 802 (as shown) has a large target surface (i.e., the size of the image sensor), the lens assembly 40 of the camera module 10 has a large dimension along the Z direction, so that the size of the lens assembly 40 matches the target surface of the sensor 802. Therefore, when the image sensor 802 with a large target surface is used in the camera module 10, although it is difficult to further reduce the size of the lens assembly 40 along the Z direction, by using the variable aperture 20 provided in this embodiment, the size of the entire camera module 10 can be effectively reduced because the variable aperture 20 has a small dimension along the Z direction.

[0374] On this basis, the third driving mechanism 24 can further include a first magnetic conductive sheet 243 as shown in the top view obtained along the Z direction in Figure 3 (see FIG. 8B). Figure 51 The first magnetic conductive sheet 243 can be arranged on the side of the bottom plate 211 of the fixed seat 21 facing the rotating support 22 (as shown in Figure 44 ), and is used to be attracted to the magnet assembly 241 on the rotating support 22 (as shown in Figure 44 ). The magnetic conductive sheet can also be referred to as a magnetic attraction sheet. The magnetic conductive sheet has high magnetic permeability, low electrical resistivity, and small iron loss. Therefore, along the thickness direction (Z direction in Figure 44 ) of the variable aperture 20, the first magnetic conductive sheet 243 can be used to attract the magnet assembly 241. Since the first magnetic conductive sheet 243 attracts the magnet assembly 241 along the Z direction, the first magnetic conductive sheet 243 can also be referred to as a Z-direction magnetic conductive sheet.

[0375] For example, the first magnetic conductive sheet 243 can be a sheet made of a metal that can attract ferromagnetic materials, such as iron, nickel, cobalt, etc. For example, the first magnetic conductive sheet 243 can be a stainless steel sheet, referred to as a steel sheet. The arrangement of the metal material that can be attracted by the magnetic material in the following embodiments of the present application is as described above, and will not be described again here.

[0376] In addition, as shown in Figure 44 , the vertical projection of the first opening 130 on the side wall of the boss 212 overlaps the vertical projection of the first magnetic conductive sheet 243 on the side wall of the boss 212. As described above, along the rotation direction of the rotating support 22, the opening length (dimension along the Y direction) of the first opening 130 can be the rotation stroke of the rotating support 22. Therefore, when the vertical projection of the first opening 130 on the side wall of the boss 212 overlaps the vertical projection of the first magnetic conductive sheet 243 on the side wall of the boss, the first magnetic conductive sheet 243 can be arranged within the stroke range of the rotating support 22.

[0377] In this way, when the rotating support 22 rotates, the first magnetic conductive sheet 243 can attract the magnet assembly 241 along the thickness direction of the variable aperture 20, which can reduce the disengagement of the rotating support 22 from the fixed seat 21 during the rotation of the camera module 10, and improve the reliability of the variable aperture 20.

[0378] In addition, by adjusting the number, position, and spacing between the first magnetic conductive sheet 243 and the magnet assembly 241, the attractive force between the first magnetic conductive sheet 243 and the magnet assembly 241 can be adjusted. For example, as shown in Figure 51As shown, each third drive mechanism 24 may include two first magnetic sheets 243. When the variable aperture 20 has two third drive mechanisms 24, the variable aperture 20 may have four first magnetic sheets 243 (black filled part).

[0379] In this case, the attraction force between all the first magnetic plates 243 in the variable aperture 20 and the magnet assembly 241 can reach approximately 10 times the weight of the rotating bracket 22 and the magnet assembly 241. At this point, the [weight / weight] can be increased. Figure 51 The frictional force between the rotating bracket 22 and the fixed base 21.

[0380] Based on this, continue as follows Figure 44 As shown, when the rotating bracket 22 rotates to drive the aperture 100 formed by the movement of multiple blades 23 to reach an aperture setting, such as the maximum aperture setting (e.g., aperture four), due to the large friction between the rotating bracket 22 and the fixed base 21, the rotating bracket 22 is difficult to rotate further relative to the fixed base 21. This allows the power supply to the coil 242 to be terminated, making the positions of the rotating bracket 22 and the fixed base 21 relatively fixed (in a steady state), achieving aperture self-locking. In this way, when the user is taking photos or videos in a fixed scene and does not need to change the aperture, the aperture self-locking and the coil 242 being in a de-energized state (the current in the coil 242 can be 0) reduce power consumption.

[0381] For example, such as Figure 44 (along Figure 52 As shown in the top view obtained in the Z direction, the base plate 211 of the fixing seat 21 has a second mounting groove 111 in the part that serves as the bottom of the first mounting groove 110. The first magnetic sheet 243 ( Figure 44 (As shown) is located within the second mounting slot 111. In this way, by creating the second mounting slot 111 on the base plate 211, the first magnetic sheet 243 located within the second mounting slot 111 can... Figure 51 As shown, the first magnetic sheet 243 is embedded in the base plate of the mounting bracket 21, so that the thickness of the first magnetic sheet 243 coincides with a portion of the thickness of the base plate 211, which helps to reduce the thickness of the variable aperture 20. Furthermore, the second mounting groove 111 is provided at the end of the coil mounting hole 123 for accommodating the coil 242 facing the boss 212, allowing the first magnetic sheet 243 located in the second mounting groove 111 to interact with the magnetic assembly 241 (as shown). Figure 51 (As shown) is closer.

[0382] In some embodiments of this application, the third drive mechanism 24 may include two first magnetic sheets 243, such as Figure 44As shown, the one end of the coil 242 towards the boss is located between two first magnetic conductive sheets 243. In this way, by increasing the number of the first magnetic conductive sheets 243, the attraction force between all the first magnetic conductive sheets 243 and the magnetic assembly can be improved, thereby facilitating the purpose of the self-locking of the aperture after the power-off of the coil 242.

[0383] As known from the above, Figure 53 As shown, the magnetic assembly 241 with the Halbach array structure can provide a larger driving force to the rotating support 22, and thus the magnetic assembly 241 with the Halbach array structure can also be referred to as a large-thrust magnetic assembly 241. Therefore, by arranging the magnetic assembly 241 with the Halbach array structure, the problem of the sticking of the rotating support 22 due to the excessive friction during the rotation of the rotating support 22 relative to the fixed seat 21 caused by the attraction of the first magnetic conductive sheet 243 (as shown in Figure 50 As shown, the magnetic assembly 241 with the Halbach array structure can provide a larger driving force to the rotating support 22, and thus the magnetic assembly 241 with the Halbach array structure can also be referred to as a large-thrust magnetic assembly 241. Therefore, by arranging the magnetic assembly 241 with the Halbach array structure, the problem of the sticking of the rotating support 22 due to the excessive friction during the rotation of the rotating support 22 relative to the fixed seat 21 caused by the attraction of the first magnetic conductive sheet 243 (as shown in

[0384] On this basis, as shown, Figure 53 As shown, the side wall of the boss 212 of the fixed seat 21 can include a first half-ring side wall 2121 and a second half-ring side wall 2122 connected to each other, and the first half-ring side wall 2121 and the second half-ring side wall 2122 are spliced together to form the complete side wall of the boss 212. Figure 54 The dashed line on the boss 212 is the boundary between the first half-ring side wall 2121 and the second half-ring side wall 2122. The dashed line is only an example of the division of the first half-ring side wall 2121 and the second half-ring side wall 2122, and does not limit the division manner of the first half-ring side wall 2121 and the second half-ring side wall 2122. Moreover, the dashed line is not a structure actually existing on the boss 212. For example, when the boss 212 is a circular truncated cone, the arc length of the first half-ring side wall 2121 and the second half-ring side wall 2122 can be the same.

[0385] In addition, as shown, Figure 54 The second magnetic conductive sheet 29 is arranged on the first half-ring side wall 2121, and the second magnetic conductive sheet 29 is used to be attracted to the magnetic assembly 241. Since the second magnetic conductive sheet 29 is attached to the partial side wall of the boss, for example, the first half-ring side wall 2121, the second magnetic conductive sheet 29 can also be referred to as a side magnetic conductive sheet.

[0386] Moreover, as shown, Figure 54As shown, the vertical projection of the first opening 130 onto the first semi-annular sidewall 2121 overlaps with the vertical projection of the second magnetic sheet 29 onto the first semi-annular sidewall 2121. As can be seen from the above, the first opening 130 can accommodate the coil 242, and the magnet assembly 241 is located on the side of the coil 242 facing the rotating bracket 22. Therefore, the magnet assembly 241 and the coil 242 are arranged in the Z-direction layer, so a portion of the assembly 241 can also be located within the first opening 130. In this way, when the vertical projection of the first opening 130 onto the first semi-annular sidewall 2121 overlaps with the vertical projection of the second magnetic sheet 29 onto the first semi-annular sidewall 2121, the second magnetic sheet 29 can be located near the magnet assembly 241, making it easier for the second magnetic sheet 29 to be attracted by the magnet assembly 241.

[0387] In addition, continue as Figure 54 As shown, the first rolling element 31 is disposed between the rotating bracket 22 and the base plate 211, and the first rolling element 31 is located on the side where the second semi-ring sidewall 2122 is located. The rotating bracket 22 and the fixed seat 21 are in contact with the first rolling element 31, and the rotating bracket 22 is rotatably connected to the fixed seat 21 through the first rolling element 31. For example, a first rolling groove 310 for accommodating the first rolling element 31 can be provided on the fixed seat 21.

[0388] In this way, such as Figure 54 (along Figure 55 As shown in the top view obtained in the Z direction, since the second magnetic sheet 29 is disposed on the first semi-ring sidewall 2121, the second magnetic sheet 29 and the magnet assembly 241 (as shown in the top view obtained ... Z direction) are connected. Figure 44 When the magnetic particles (as shown) are attracted, the rotating bracket 22 will move along the Y direction toward the position of the second semi-annular sidewall 2122 of the fixed base 21 (e.g., to the right). Since the first rolling element 31 is located on the side of the second semi-annular sidewall 2122, that is, the second magnetic sheet 29 and the first rolling element 31 can be located on opposite sides of the boss 212, therefore... Figure 44 (along Figure 56 As shown in the cross-sectional view obtained by cutting along the dashed lines O1-O2, the rotating bracket 22 and the fixed seat 21 can contact the first rolling element 31, that is, the first rolling element 31 is in a zero-fit (or tight-fit) state with the rotating bracket 22 and the fixed seat 21.

[0389] In this situation, continue as follows Figure 55As shown, when the rotating bracket 22 is rotatably connected to the fixed seat 21 via the first rolling element 31, since the rotating bracket 22 and the fixed seat 21 can contact the first rolling element 31, the rotating bracket 22 can always rest on the first rolling element 31 during the rotation process and rotate relative to the fixed seat 21. This can improve the stability of the rotating bracket 22 during the rotation process and the consistency of the rotating bracket 22 when rotating to various angles, thereby improving the reliability of the product.

[0390] For example, the first rolling element 31 may include a ball or a roller. Alternatively, the first rolling element 31 may also include multiple balls. Taking the first rolling element 31 as an example where multiple balls are included, the multiple balls may be arranged along the thickness direction (i.e., the Z direction) of the variable aperture 20.

[0391] Furthermore, in other embodiments of this application, the variable aperture 20 also includes, for example... Figure 56 The second rolling element 32 shown can be disposed on the rotating bracket 22 (e.g., Figure 57 As shown, the second rolling element 32 is located between the base plate 211 of the fixed seat 21 and the first semi-annular sidewall 2121. For example, a first rolling groove 320 for accommodating the second rolling element 32 can be provided on the fixed seat 21. The second rolling element 32 and the rotating bracket 22 have a... Figure 44 (along Figure 58 The adjustment gap H1 shown in the cross-sectional view obtained by cutting through the dashed lines O1-O2 in the figure is 30μm≤H1≤70μm.

[0392] As can be seen from the above, continuing as follows Figure 55 As shown, the second rolling element 32 and the second magnetic sheet 29 are located on the same side of the boss 212. The second magnetic sheet 29 is connected to the magnet assembly 241 (as shown). Figure 58 When the phase adsorption occurs (as shown), the rotating bracket 22 will move toward the position of the second semi-ring sidewall 2122 of the fixed seat. In this case, the second rolling element 32 located on the side of the first semi-ring sidewall 2121 can have the aforementioned adjustment gap H1 with the rotating bracket 22.

[0393] In this way, during reliability testing (roll or drop tests, etc.) of the variable aperture 20 and during user use, when the rotating bracket 22 undergoes a large displacement in the horizontal plane (perpendicular to the optical axis of the variable aperture 20), the side of the rotating bracket 22 closest to the second rolling element 32 can contact the second rolling element 32, so that the second rolling element 32 limits the further displacement of the rotating bracket 22, reducing the amount of displacement of the rotating bracket 22. This avoids the phenomenon that the multiple blades 23 slidably connected to the rotating bracket 22 are pulled when the rotating bracket 22 undergoes a large displacement, thus preventing damage to the blades 23.

[0394] For example, the second rolling member 32 can include one ball or one roller. Alternatively, the second rolling member 32 can include a plurality of balls or a plurality of rollers. For example, when the second rolling member 32 includes a plurality of balls, the plurality of balls can be arranged along the thickness direction (i.e., the Z direction) of the variable aperture 20.

[0395] On this basis, as shown in the top view (as viewed along the Z direction) in FIG. 13, the variable aperture 20 can include two driving assemblies, two first rolling members 31, and two second rolling members 32. The two driving assemblies are a first third driving mechanism 2401 and a second third driving mechanism 2402. The first third driving mechanism 2401 is arranged on the side of the first half-ring side wall 2121, and the second third driving mechanism 2402 is arranged on the side of the second half-ring side wall 2122. The first third driving mechanism 2401 is located between the two second rolling members 32. The second third driving mechanism 2402 is located between the two first rolling members 31. In this way, by arranging the first third driving mechanism 2401 on the side of the first half-ring side wall 2121 of the boss 212 and arranging the second third driving mechanism 2402 on the side of the second half-ring side wall 2122, the rotating support 22 can be uniformly stressed during rotation. Figure 44 Figure 59

[0396] In addition, by arranging the first third driving mechanism 2401 between the two second rolling members 32 and increasing the number of second rolling members 32, the displacement of the rotating support 22 can be further limited during reliability testing (rolling or drop testing, etc.) of the variable aperture 20 and user use, effectively reducing the displacement of the rotating support 22. Furthermore, by arranging the second third driving mechanism 2402 between the two first rolling members 31 and increasing the number of first rolling members 31 so that the rotating support 22 can contact the first rolling members 31 on both sides of the first third driving mechanism 2401, it is beneficial to further improve the consistency, stability, and reliability of the movement.

[0397] The above is an example of the variable aperture 20 having two driving assemblies, i.e., the first third driving mechanism 2401 and the second third driving mechanism 2402 (which can also be referred to as a double-sided third driving mechanism 24). In other embodiments of the present application, a third driving mechanism 24 (which can also be referred to as a single-sided third driving mechanism 24) can also be provided.

[0398] As described above, Figure 44 ​​The central magnet assembly 241 is connected to the rotating support 22, which serves as the stator. Based on this, in some embodiments of this application, the coil 242 can be indirectly or directly connected to the fixed base 21, which serves as the stator. The connection method between the coil 242 and the fixed base 21 is illustrated below.

[0399] For example, such as Figure 44 As shown, the variable aperture 20 may further include a flexible printed circuit board (FPC) 27, which is disposed on the side of the mounting base 21 away from the blade 23 and connected to the mounting base 21. A coil 242 passes through the mounting base 21 and is disposed on the side of the FPC 27 facing the rotating bracket 22, connected to the FPC 27. For example, during the assembly of the variable aperture 20, the coil 242 can first be assembled with the entire FPC 27, and then the FPC 27 with the coil 242 assembled can be bonded to the lower surface of the mounting base 21 (i.e., the surface away from the cover plate 25) using a dispensing process. Based on this, the coil 242 can be indirectly connected to the mounting base 21 via the FPC 27. In this way, compared to the scheme of bending the FPC around the circumference of the actuator into an arc shape, the FPC 27 of this application does not need to be bent, as... Figure 60 (along Figure 61 As shown in the bottom view obtained in the Z direction, the FPC27 can be configured as a flat plate structure parallel to the XY plane, thereby simplifying the manufacturing process of the FPC27.

[0400] Furthermore, as described above, during the rotation of the rotating bracket 22 relative to the fixed base 21, it can drive the movement of multiple blades 23 to adjust the aperture diameter of the aperture 100 formed by the multiple blades 23. Based on this, in order to control the rotation position of the rotating bracket 22 and achieve precise control of the aperture diameter 100, the aforementioned variable aperture 20 may further include, for example... Figure 60 (along Figure 62 The second driver chip (integrated circuit, IC) 28 shown in the top view obtained in the Z direction is used to control the rotation position of the rotating bracket 22.

[0401] In some embodiments of this application, the following continues... Figure 60 As shown, the second driver chip 28 can be electrically connected to the FPC 27, thereby enabling the second driver chip 28 to connect to the circuit board 80 of the camera module 10 (e.g., via the FPC 27) through the FPC 27. Figure 62 The circuit is electrically connected (as shown) so that the processor on circuit board 80 can transmit control signals to the second driver chip 28, thereby enabling the second driver chip 28 to control the rotational position of the shaft support. For example, the second driver chip 28 can be a Hall effect chip. As can be seen from the above,Figure 3 The coil 242 is connected to the FPC 27, so in some embodiments, the coil 242 and the second driving chip 28 can be disposed on the FPC 27, for example, the second driving chip 28 is fixed inside the coil 242, so as to save the layout space on the FPC 27.

[0402] On this basis, as Figure 62 shown, when the FPC 27 provided with the coil 242 is connected to the lower surface of the fixing seat 21, in order to reduce the thickness of the variable aperture 20, the bottom plate 211 of the fixing seat 21 can be provided with a coil mounting hole 123 (as Figure 63 shown) penetrating the bottom plate 211, and the coil 242 can be disposed in the coil mounting hole 123, so that the coil 242 can be disposed through the fixing seat 21. In this way, the coil 242 and the part of the thickness of the fixing seat 21 overlap, achieving the purpose of reducing the thickness of the variable aperture 20.

[0403] In addition, as Figure 44 shown, the coil 242 needing power supply is disposed on the side of the FPC 27 facing the rotating support 22, and the coil 242 is connected to the FPC 27, so that the coil 242 is disposed opposite to the above-mentioned magnet assembly 241, and the coil 242 is directly powered through the metal traces on the FPC 27, so as to simplify the electrical connection structure of the variable aperture 20.

[0404] Based on the above, the lower surface (parallel to the XY plane) of the coil 242 is connected to the FPC 27, and the upper surface (parallel to the XY plane) of the magnet assembly 241 is connected to the rotating support 22, so the above-mentioned coil 242 and the magnet assembly 241 are disposed laterally (parallel to the XY plane) on the side of the rotating support 22 away from the blade 23. Therefore, compared with the scheme of disposing the coil and the magnet on the side of the rotating support 22, the size of the variable aperture 20 in the XY plane can be reduced.

[0405] In addition, the bottom plate 211 of the fixing seat 21 is provided with a coil mounting hole 123 (as Figure 63 shown) for accommodating the coil 242, and the side plate 213 of the fixing seat 21 is provided with a first opening 130 (as Figure 44 shown) for accommodating the magnet assembly 241. Therefore, along the Z direction as Figure 44 shown, the coil 242 overlaps the thickness of the fixing seat 21, and the magnet assembly 241 overlaps the thickness of the fixing seat 21, so as to reduce the thickness of the variable aperture 20 in the Z direction.

[0406] In summary, the variable aperture 20 provided by the embodiments of the present application is a moving magnet structure in which the FPC 27 is attached to the bottom of the fixed seat 21, and the coil 242 and the magnet assembly 241 are arranged transversely. The variable aperture 20 has the advantages of fewer components, simple structure and process, small size, light weight, good reliability, and low cost.

[0407] On this basis, in order to improve the reliability of the variable aperture 20, in some embodiments of the present application, the fixed seat 21 can include a first plastic part 2101 and a first metal support 2102 as shown in Figure 63 The material of the first plastic part 2101 includes a plastic material such as polyester, polyethylene, etc. The first plastic part 2101 can include the bottom plate 211, the boss 212, and the side plate 213. In addition, the material of the first metal support 2102 can include at least one metal element, for example, the first metal support 2102 can be a stainless steel support. The first metal support 2102 can include a first metal part 214 and a second metal part 215.

[0408] Based on this, as shown in Figure 64 The first metal support 2102 can be embedded in the first plastic part 2101, and the first metal support 2102 and the first plastic part 2101 are connected as a first integrated structure 2100. In this way, the first integrated structure 2100 can be formed by an insert molding process. The first metal part 214 can be located in the bottom plate 211 to strengthen the rigidity of the part of the fixed seat 21 located in the bottom plate 211. The second metal part 215 is arranged in the side plate 213 to strengthen the rigidity of the part of the fixed seat 21 located in the side plate 213.

[0409] Because the fixed seat 21 has the first metal support 2102, the mechanical strength of the fixed seat 21 can be increased. When the variable aperture 20 is subjected to reliability tests (rolling or dropping tests, etc.) and the user uses it, the probability of damage to the fixed seat 21 can be reduced when the fixed seat 21 is impacted, achieving the purpose of prolonging the service life of the product. As described above, the material of the first metal support 2102 can include stainless steel. In the following embodiments, the material of the metal part embedded in the plastic part formed by the insert molding process can also include the above-mentioned stainless steel.

[0410] On this basis, as shown in Figure 65 The first plastic part 2101 can have a first hollow area 140, and the first hollow area 140 can expose part of the surface of the first metal support 2102. As shown in Figure 66 Figure 64 The second metal part 215 of the first metal support 2102 can include a metal plate 2151. Figure 66The first cutout area 140 can expose at least a portion of the metal plate 2151. The exposed surface of the metal plate 2151 is used to create a product identification code. In this way, a product identification code characterizing product information can be directly prepared on the first metal support 2102, eliminating the need for a separate steel sheet for creating and attaching the product identification code, thereby reducing the number of parts and simplifying the manufacturing process. For example, the product identification code can be a QR code, numbers, letters, or character codes, etc., and this application does not limit this.

[0411] In addition, such as Figure 67 As shown, the aforementioned first metal bracket 2102 can also be grounded to the FPC 27. For example, a portion of the first metal part 214 of the first metal bracket 2102 ( Figure 67 The portion circled in the middle (within the dashed circle) can be electrically connected to the exposed copper area (not shown in the figure) on the FPC27 through conductive adhesive to ground the first metal bracket 2102, thereby reducing electromagnetic interference. This application does not limit the material of the conductive adhesive, as long as it ensures that the conductive adhesive can ground the first metal bracket 2102 to the FPC27.

[0412] The above example illustrates the arrangement of the coil 242, which is mounted on the FPC 27 in the third drive mechanism 24 and connected to the bottom of the fixed base 21, thereby indirectly connecting the coil 242 to the fixed base 21 via the FPC 27.

[0413] Alternatively, in some other embodiments of this application, such as Figure 68 As shown, coil 242 is directly mounted on the fixed base 21 and connected to the fixed base 21. For example, a coil mounting groove 124 can be provided on the base plate 211 of the fixed base 21, and the coil 242 can be located within this groove. The bottom of the groove 124 can support the coil 242. Similarly, the fixed base 21, acting as the stator, remains stationary relative to the rotating support 22 during the change of the aperture 100 of the variable aperture 20. This ensures that the coil 242 mounted on the fixed base 21 remains stationary relative to the magnet assembly 241 mounted on the rotating support 22, thus maintaining the variable aperture 20 as a moving-magnet type variable aperture 20.

[0414] Similarly, Figure 68 The mounting base 21 shown can also be manufactured using the above-described injection molding process. In this case, as... Figure 69 As shown, the mounting base 21 may include a first plastic part 2101 and a first metal bracket 2102. The structure and technical effects of the first plastic part 2101 and the first metal bracket 2102 are the same as described above, and will not be repeated here.

[0415] On this basis, continue as Figure 68 As shown, the second driving chip 28 can be disposed within the coil 242. Based on this, in some embodiments of this application, the variable aperture 20 may not require an FPC electrically connected to the second driving chip 28. In order to... Figure 3 The circuit board 80 shown is electrically connected to the second driver chip 28, as follows: Figure 69 As shown, the aforementioned mounting base 21 may further include a metal grounding trace 2103, a metal signal trace 2104, a metal grounding terminal 2105, and a metal signal terminal 2106. The materials of the aforementioned metal grounding trace 2103, metal signal trace 2104, metal grounding terminal 2105, and metal signal terminal 2106 may be the same as or different from the material of the first metal bracket 2102, and this application does not limit this.

[0416] Among them, such as Figure 70 As shown, the metal signal trace 2104 can be electrically connected to the second driver chip 28 and the metal signal terminal 2106, and the metal ground trace 2103 can be electrically connected to the second driver chip 28 and the metal ground terminal 2105. The metal signal terminal 2106 and the metal ground terminal 2105 can be connected to... Figure 3 The circuit board 80 shown is electrically connected.

[0417] In this way, the metal ground trace 2103, metal signal trace 2104, and metal ground terminal 2105 and metal signal terminal 2106 can replace the FPC 27, allowing control signals from the processor on the circuit board 80 to be transmitted to the second driver chip 28 via the aforementioned metal ground trace 2103, metal signal trace 2104, and metal ground terminal 2105 and metal signal terminal 2106. This application does not limit the number of the aforementioned metal ground terminal 2105 and metal signal terminal 2106. Figure 70 This example uses two metal grounding terminals 2105 and two metal signal terminals 2106 as examples.

[0418] In addition, the metal grounding terminal 2105 can be grounded to Figure 3 The circuit board 80 shown, therefore, continues as follows Figure 70 As shown, the aforementioned metal grounding trace 2103 can also be electrically connected to the first metal bracket 2102, thereby enabling the first metal bracket 2102 to be grounded on the circuit board 80 through the metal grounding trace 2103 and the metal grounding terminal 2105.

[0419] In this case, such as Figure 71As shown, the first metal support 2102, the metal ground trace 2103 and the metal signal terminal 2106 are embedded in the first plastic member 2101, and the metal signal terminal 2106, the metal ground trace 2103, the first metal support 2102 and the first plastic member 2101 are connected as a first integrated structure 2100. As described above, the first integrated structure 2100 can be formed by embedding injection molding process. The technical effects of the first integrated structure 2100 are as described above and will not be repeated here. At least part of the metal ground terminal 2105 and the metal signal terminal 2106 are exposed outside the first plastic member 2101.

[0420] In this way, as shown, Figure 72 The rotating support 22, the magnet assembly 241, the coil 242, the blade 23 and other components are arranged in the accommodating space between the cover plate 25 and the fixed seat 21 to form a variable aperture 20. The variable aperture 20 can be electrically connected to the circuit board 30 as shown, so that the FPC does not need to be arranged inside the variable aperture 20, achieving the purpose of simplifying the structure. Figure 3

[0421] As described above, the above is an example of the arrangement of the coil 242 in the variable aperture 20. Among them, Figure 4 As shown, the coil 242 is arranged on the FPC 27, and the FPC 27 is connected to the fixed seat 21. Figure 72 As shown, the coil 242 is directly connected to the fixed seat 21 without arranging the FPC. For any one of the above variable apertures 20, the rotating support 22 can be rotatably connected to the fixed seat 21. Hereinafter, for the convenience of description, the variable aperture 20 with the FPC 27 as shown will be taken as an example for illustration. Figure 4

[0422] In some embodiments of the present application, as shown, Figure 73 The rotating support 22 can include a second plastic member 2201 and a second metal support 2202. The materials of the second plastic member 2201 and the second metal support 2202 are as described above and will not be repeated here. As shown, Figure 74 The second metal support 2202 is embedded in the second plastic member 2201, and the second metal support 2202 and the second plastic member 2201 are connected as a second integrated structure 2200.

[0423] ​​Similarly, the second integrated structure 2200 can be formed by the above-mentioned insert injection molding process. Since the second metal bracket 2202 is arranged in the rotating bracket 22, the mechanical strength of the rotating bracket 22 can be increased, and the probability of damage to the rotating bracket 22 can be reduced when the rotating bracket 22 is impacted during reliability testing (rolling or dropping test, etc.) of the variable aperture 20 and use of the user, thereby prolonging the service life of the product.

[0424] In addition, as shown in Figure 74 , the magnet assembly 241 is connected to and attracted to the second metal bracket 2202. In this way, as shown in Figure 75 , a part of the second metal bracket 2202 can be used as a bearing portion of the magnet assembly 241, and the bearing portion is glued toward one side surface of the magnet assembly 241, so that the magnet assembly 241 is connected to the second metal bracket 2202. Figure 74

[0425] On this basis, as shown in Figure 75 , since the second metal bracket 2202 can be attracted by the magnet assembly 241 and the second metal bracket 2202 has a large attraction force with the magnet assembly 241, the magnet assembly 241 can be prevented from falling off to the greatest extent. Therefore, the reliability of the connection between the component and the second metal bracket 2202 at this time is increased. In addition, a steel sheet for connecting the rotating bracket 22 and the magnet assembly 241 can be avoided, thereby simplifying the manufacturing process.

[0426] In some embodiments of the present application, the variable aperture 20 further includes a cover plate 25 as shown in Figure 76 , which is arranged on the side of the plurality of blades 23 away from the rotating bracket 22, and the cover plate 25 is arranged on the fixed seat 21. The cover plate 25 is provided with a second light transmission hole 102, and when the cover plate 25 is arranged on the fixed seat 21, the second light transmission hole 102 can be in communication with the aperture hole 100.

[0427] In addition, in some embodiments of the present application, as shown in Figure 77 , the cover plate 25 can include a third plastic part 2501, a third metal bracket 2502, and a first gasket 2503 (soma). The materials of the third plastic part 2501 and the third metal bracket 2502 are the same as described above, and will not be described again here. As shown in Figure 78 , the third metal bracket 2502 is embedded in the third plastic part 2501, and the third metal bracket 2502 is connected to the third plastic part 2501 to form a third integrated structure 2500.

[0428] ​Similarly, the third integrated structure 2500 can be formed by the above-mentioned insert injection molding process. Since the cover plate 25 has the third metal support 2502, the mechanical strength of the cover plate 25 can be increased, and the probability of damage to the cover plate 25 can be reduced when the cover plate 25 is impacted during reliability testing (rolling or dropping test, etc.) of the variable aperture 20 and use of the user, thereby prolonging the service life of the product.

[0429] In some embodiments of the present application, as shown in Figure 77 , the third metal support 2502 has a plurality of hollow parts 25011 penetrating through the third metal support 2502, and the hollow parts 25011 are arranged at the periphery of the second light transmission hole 102. In this way, the second light transmission hole 102, which is in communication with the aperture hole 100, can be used to allow external light to enter the aperture hole 100 through the second light transmission hole. In addition, by arranging a plurality of hollow parts 25011 on the third metal support 2502, the weight of the entire third metal support 2502 can be reduced relative to the cover plate 25 made entirely of metal, thereby reducing the weight of the cover plate 25 and the entire variable aperture 20.

[0430] In addition, as shown in Figure 79 , the third metal support 2502 is connected to the first metal support 2102. For example, the third metal support 2502 in the cover plate 25 can be connected to the first metal support 2102 in the fixed seat 21 by welding, thereby increasing the reliability of the connection between the cover plate 25 and the fixed seat 21 and reducing the probability of the cover plate 25 falling off.

[0431] In some embodiments of the present application, a plurality of welding positions a1 (as shown in Figure 77 , for example, six welding positions a1) can be arranged on the cover plate 25. In addition, as shown in Figure 64 , the second metal part 215 of the first metal support 2102 can further include a plurality of metal rods 2152 and a plurality of welding parts 2153, and one metal rod 2152 and one welding part 2153 are connected. Figure 79 When the cover plate 25 has six welding positions a1 (as shown in , the first metal support 2102 can have six metal rods 2152 and six welding parts 2153. In this case, one welding part 2153 of the first metal support 2102 can be welded to one welding position a1 of the cover plate 25, thereby improving the connection stability between the cover plate 25 and the fixed seat 21. In addition, it can also avoid riveting and dispensing processes, enhance the reliability strength, reduce the process flow of the motor 41, and reduce the overall cost.

[0432] On this basis, as shown in Figure 79 After the third metal support 2502 is welded with the first metal support 2102, the third metal support 2502 can be electrically connected with the first metal support 2102, so that the third metal support 2502 can be grounded to the FPC 27 through the first metal support 2102 (as shown in Figure 76 ).

[0433] In this way, the manufacturing process of grounding of the cover plate 25 can be simplified. In the related art, as shown in Figure 80 , the metal cover plate mainly composed of a steel plate needs to be electrically connected with the FPC leading-out part by means of dispensing, and then the dispensing position is covered with dispensing protection glue. Compared with the related art, the third metal support 2502 in the cover plate 25 shown in Figure 79 needs to be electrically connected with the first metal support 2102 in the fixing seat 21, for example, by welding or dispensing, so that the FPC leading-out part and the dispensing layer and dispensing protection glue for electrically connecting the FPC leading-out part with the metal cover plate are not needed, thereby achieving the purpose of simplifying the structure and reducing the manufacturing process and the cost of the variable aperture 20.

[0434] Alternatively, in some other embodiments of the present application, the third metal support 2502 in the cover plate 25 shown in Figure 79 may be grounded between the first metal support 2102 in the fixing seat 21 by means of dispensing (for example, silver dispensing) and the like.

[0435] In addition, as shown in Figure 77 , the first gasket 2503 is arranged on the side of the third integrated structure 2500 (including the third plastic part 2501 and the third metal support 2502) away from the blade 23 (as shown in Figure 76 ), and the first gasket 2503 is located on the top surface of the variable aperture 20. The first gasket 2503 can shield part of the structure of the blade 23 below the cover plate 25, so that the side surface of the first gasket 2503 away from the third integrated structure serves as an appearance surface visible to the user, achieving the effects of decoration and improvement of appearance quality and appearance delicacy, and maximizing the control area of the appearance of the product, thereby meeting the industrial design (ID) design requirements.

[0436] In addition, since the third metal support 2502 in the cover plate 25 is located in the third plastic part 2501, and the cover plate 25 is arranged on the side of the plurality of blades 23 away from the rotating support 22. In this way, during the rotation of the blade 23, the component in direct contact with the blade 23 and rubbing against the blade 23 is the third plastic part 2501 in the cover plate 25. The surface of the third plastic part 2501 has a smaller friction coefficient relative to the surface of the metal material, thereby reducing the friction between the blade 23 and the third plastic part 2501, and further reducing the abrasion (e.g., the appearance of white wear) of the blade 23 during reliability testing or use.

[0437] In some embodiments of the present application, Figure 60 the second gasket 26 in the cover plate 25, Figure 77 the first gasket 2503 in the cover plate 25, and Figure 76 the blade 23 in the cover plate 25 can adopt the same material. The mirror reflectivity G (Gloss), optical density value OD, L value, a value, and b value in the material color triplet of the above-mentioned material can be R≤0.3%; OD value≥5.0; L≤8; |a|≤1; |b|≤1, respectively.

[0438] The lower the mirror reflectivity G, the more matte the surface is. The smaller the L value, the higher the blackness. The a value and b value represent the color index, which represents the degree of color deviation. The higher the a value and b value, the deeper the color tone. In addition, the higher the optical density value OD, the lower the transmittance and the higher the absorption. When the optical density value OD is higher than 5, the light transmittance is much less than 1%.

[0439] In this way, when the mirror reflectivity G, the optical density value OD, the L value, the a value, and the b value in the material color triplet of the material of the second gasket 26, the first gasket 2503, and the blade 23 are R≤0.3%; OD value≥5.0; L≤8; |a|≤1; |b|≤1, respectively, the material of the second gasket 26, the first gasket 2503, and the blade 23 can all be super-black material, so that the color and gloss of the parts of the first gasket 2503, the second gasket 26, and the blade 23 visible to the user during the movement of the blade 23 are consistent, reducing the probability of color difference between the three components and improving the appearance quality.

[0440] In addition, when the material of the second gasket 26, the first gasket 2503, and the blade 23 is the super-black material, the super-black material has good blackness, meets the appearance design requirements, and has good wear resistance. Alternatively, the second gasket 26, the first gasket 2503, and the blade 23 can adopt a base material, and the super-black material is coated or attached to the surface of the base material, which also meets the appearance consistency requirement.

[0441] In addition, the mechanical properties of the same material of the second gasket 26, the first gasket 2503 and the blade 23 can meet the following requirements: modulus ≥ 3000 MPa, yield strength / breaking strength ≥ 80 MPa (wherein, only the breaking strength needs to be concerned if there is no obvious yield phenomenon), elongation at break ≥ 10%. In this way, in the reliability test process, 2 rounds or 5 rounds of drop test can be passed, and 500 times of roller test can be passed. Among them, when the variable aperture 20 passes more than 1000 times of roller test, there is a certain risk. And the service life of the variable aperture 20 can reach 250,000 times.

[0442] In some embodiments of the present application, as shown in Figure 81 The fixed seat 21 can further include an anti-collision structure 34, which can be arranged around the periphery of the rotating support 22 and protrude from the surface of the cover plate 25 away from the blade 23, for example, the height D of the anti-collision structure 34 can be about 0.08mm. As shown in the example, Figure 79 The anti-collision structure 34 can be arranged on the side plate 213 of the fixed seat 21 away from the bottom plate 211, and the fixed seat 21 can have four anti-collision structures 34. The number of anti-collision structures 34 is not limited in the present application.

[0443] In this way, the part of the fixed seat 21 around the periphery of the rotating support 22 and protruding from the cover plate 25, such as the above-mentioned anti-collision structure 34, can be in contact with the lens or other decorative parts of the rear shell 03 of the electronic device 01 (as shown in Figure 1 In the product test (for example, rolling reliability test) or user use process, it can reduce the direct touch friction between the cover plate 25 and the above-mentioned lens or other device parts, so that the appearance is not bad due to the wear of the top surface of the cover plate 25, and the appearance, service life and reliability of the product are improved.

[0444] In addition, as known from the above, the variable aperture 20 can be connected with the lens assembly 40 in Figure 3 Based on this, in order to improve the connection reliability of the variable aperture 20 and the lens assembly 40, in some embodiments of the present application, as shown in Figure 82 The fixed seat 21 further includes an adhesive structure 35, which can be arranged on the surface of the bottom plate 211 of the fixed seat 21 away from the side plate 213. The bottom surface A1 of the adhesive structure 35 and the surface A2 of the bottom plate 211 away from the side plate 213 can be connected with the lens assembly 40 below the variable aperture 20.

[0445] In some embodiments, a protrusion is arranged on one side of the variable aperture close to the lens assembly, and a groove is arranged on the lens assembly, and the protrusion and the groove are matched.

[0446] In this way, the surface of the variable aperture 20 and the lens assembly 40 can be uneven. On this basis, as shown in Figure 83 , the lens assembly 40 can have an adhesive groove 36 matched with the adhesive structure 35. Therefore, the surface of the lens assembly 40 connected with the variable aperture 20 can also be uneven, which matches the surfaces A1 and A2, so that the stability of the connection between the variable aperture 20 and the lens assembly 40 can be improved when the variable aperture 20 is bonded with the lens assembly 40.

[0447] For example, as shown in Figure 82 , the vertical projection of the adhesive structure 35 on the bottom plate 211 is a fan shape, and the fan shape has a first arc-shaped side 351 and a second arc-shaped side 352. The arc length of the first arc-shaped side 351 can be greater than the arc length of the second arc-shaped side 352. Wherein, the first arc-shaped side 351 is arranged away from the boss 212 relative to the second arc-shaped side 352, at this time, the adhesive structure 35 can be a dovetail structure. As shown in Figure 83 , the adhesive groove 36 of the lens assembly 40 matched with the adhesive structure 35 can be a dovetail groove matched with the above-mentioned dovetail structure.

[0448] Based on this, when the camera module 10 is working, the mutually matched dovetail-shaped adhesive structure 35 and the adhesive groove 36 can prevent shearing in the horizontal plane (a surface perpendicular to the optical axis of the variable aperture 20) in the X and Y directions. In addition, along the rotation direction of the blades 23 in the variable aperture 20, the contact area between the side wall of the above-mentioned dovetail structure and the above-mentioned dovetail groove is large, which can effectively limit the variable aperture 20 to limit the position of the variable aperture 20.

[0449] The above embodiments describe the structure of the camera module. The following describes the circuit and application scenarios related to the camera module in the electronic device. Figure 84 , Figure 85 , Figure 86

[0450] As shown in Figure 84 , the electronic device further includes a processor 5, and the camera module 10 is electrically connected with the processor 5.

[0451] Among them, referring to Figure 39 , the camera module 10 includes a module circuit board 80, and the module circuit board 80 is electrically connected with the processor 5 through a third FPC 804.

[0452] ​In some embodiments, the processor 5 can include one or more processing units, for example: the processor can include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Among them, different processing units can be independent devices, or can be integrated in one or more processors.

[0453] In the present application, the processor 5 can be a microprocessor. The processor 5 is used to receive and process electrical signals containing image information from the camera module. The processor 5 can calculate the lens movement amount according to the lens position, and control the lens movement of the camera module according to the lens movement amount.

[0454] Among them, the processor 5 is electrically connected with the drive chip, and can control the first driving mechanism 418, the second driving mechanism 421 and the third driving mechanism 24 to work respectively through the drive chip, so as to realize the above-mentioned anti-shake, focusing, adjusting light amount control functions.

[0455] As shown in Figure 39 , the module circuit board 80 is provided with a first drive chip 803. The first driving mechanism 418 and the second driving mechanism 421 are electrically connected with the first drive chip 803, and the first drive chip 803 is electrically connected with the processor 5.

[0456] Referring to Figures 33-39 , the first driving mechanism 418 is electrically connected with the first FPC 61 through the first conductive lead 621, and is electrically connected with the first drive chip 803 through the first FPC 61. The second driving mechanism 421 is electrically connected with the first drive chip 803 through the second conductive lead 63.

[0457] In this way, the first drive chip 803 can control the first driving mechanism 418 and the second driving mechanism 421.

[0458] In operation, the first drive chip can apply a first current to the first driving mechanism, so that the first driving mechanism drives the first support and the lens assembly to move along the optical axis of the lens assembly.

[0459] The first driving chip can also apply a second current to the second driving mechanism, so that the second driving mechanism drives the first support, the second support and the lens assembly to move along a plane perpendicular to the optical axis of the lens assembly.

[0460] In addition, as Figure 34 The electronic device also includes a position sensor 11 electrically connected to the first driving chip 803, the position sensor 11 being configured to detect the position of the second support 414 relative to the base 413, and the first driving chip 803 being configured to control the second driving mechanism 421 according to the position information detected by the position sensor 11.

[0461] The present embodiment does not limit the structure of the position sensor 11. The position sensor 11 may, for example, include a Hall sensor, a gyroscope, etc.

[0462] The first driving chip 803 is electrically connected to the position sensor 11, and the first driving chip 803 can obtain measurement data of the position sensor 11, which may, for example, include the amount and direction of shaking of the camera module measured by the gyroscope, and the current pose data of the camera module measured by the Hall sensor. The first driving chip 803 calculates and determines the target adjustment data of the second support according to the obtained amount and direction of shaking and the current pose data of the second support, and controls the second support adjustment device to adjust the pose of the second support according to the target adjustment data, thereby realizing anti-shake photography.

[0463] Next, referring to Figure 38 The camera module also includes a second driving chip 28. The second driving chip 28 is electrically connected to the processor 5 and is electrically connected to the third driving mechanism, and the second driving chip 28 is configured to control the third driving mechanism 24.

[0464] The third driving mechanism 24 is electrically connected to the second driving chip 28, the second driving chip 28 is electrically connected to the second FPC 27, the first end of the second spring arm 58 is connected to the second FPC 27, and the second end of the second spring arm 58 is electrically connected to the first FPC 61 through the third conductive lead 622, so that the second driving chip 28 is electrically connected to the module circuit board 80 through the second FPC 27, the second spring arm 58, the third conductive lead 622 and the first FPC 61.

[0465] In this way, the second driving chip 28 can control the third driving mechanism 24.

[0466] In operation, the second driving chip 28 can apply a third current to the third driving mechanism, so that the third driving mechanism drives the rotating support of the variable aperture to rotate relative to the fixed seat.

[0467] In an alternative embodiment, the Hall sensor is integrated in the second driving chip 28.

[0468] Figure 85 The structural block diagram of the electronic device is provided for the embodiments of the present application. Please refer to Figure 85 The electronic device 1 further comprises a communication bus 15, at least one communication interface 13 and a memory 14. It can be understood that, Figure 10 is only an example of the electronic device 1 and does not constitute a limitation on the electronic device 1. The electronic device 1 can comprise more or less components than those shown in the figure, or combine certain components, or different components, for example, the electronic device 1 can further comprise an input and output device, a network access device, etc. Figure 10 The position sensor comprises a gyro sensor and a Hall sensor.

[0469] The electronic device further comprises an external memory interface, an internal memory, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a mobile communication module, a wireless communication module, an audio module, a speaker, a receiver, a microphone, an earphone interface, a sensor module, a key and a camera, etc. The sensor module can comprise a pressure sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor and a bone conduction sensor, etc.

[0470] The processor 5 is in communication connection with the at least one communication interface 13, the memory 14, the display screen 2 and the control circuit through the communication bus 15. The processor 5 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The processor is the control center of the electronic device 1, and connects all components of the electronic device 1 through various interfaces and lines.

[0471] The communication bus 15 can comprise a channel for transmitting information between the above-mentioned components.

[0472] ​

[0473] The communication interface 13, using any transceiver-like device, is used to communicate with other devices or communication networks, such as an Ethernet network, a radio access network (RAN), a wireless local area network (WLAN), and so on.

[0474] The memory 14 can be used to store computer programs and / or modules, and the processor 5 implements various functions of the electronic device 1 by running or executing the computer programs and / or modules stored in the memory 14, and calling data stored in the memory 14. The memory 14 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, application programs required by multiple functions (such as a sound playing function, an image playing function, etc.), and the like; and the data storage area can store data created according to the use of the electronic device 1 (such as audio data, a phone book, etc.), and the like. In addition, the memory 14 can include a high-speed random access memory, and can also include a nonvolatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, multiple disk storage devices, a flash memory device, or other volatile solid-state memory devices. The memory 14 can exist independently, and is connected to the processor 5 through a communication bus 15. The memory 14 can also be integrated with the processor 5.

[0475] In a specific implementation, as an example, the processor 5 can include one or more CPUs, such as the CPU0 and the CPU1 in the Figure 10 In a specific implementation, as an example, the processor 5 can include one or more CPUs, such as the CPU0 and the CPU1 in the

[0476] In a specific implementation, as an example, the electronic device 1 can include multiple processors, such as the processor 5 in the Figure 10 In a specific implementation, as an example, the electronic device 1 can include multiple processors, such as the processor 5 in the

[0477] It should be understood that the above system is only exemplified by the division of the above functional modules when realizing its functions, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process is described in the method embodiments, which will not be repeated here.

[0478] In some embodiments of the present application, the processor 5 can control the driving mechanism to work in response to a user input trigger operation. The specific case of how the processor 5 of the electronic device 1 determines that a user input trigger operation is received is exemplarily described below.

[0479] As shown in FIG. 1, the electronic device 1 further comprises a detection element 12 electrically connected to the processor 5, the detection element 12 is configured to detect a user input trigger operation, and the processor 5 is configured to control the first driving chip 171 to realize automatic focusing or anti-shake in response to the user trigger operation. Alternatively, the processor 5 can control the second driving chip 172 to realize the adjustment of the amount of light in response to the user trigger operation. Figure 85 In some embodiments, the user input trigger operation includes a trigger operation for starting the camera. Exemplarily, the user trigger operation includes a click trigger, a voice trigger or a motion trigger.

[0480] In one implementation manner of the embodiment of the present application, as shown in FIG. 1, this case is exemplarily described by taking a mobile phone as an example of the electronic device. As shown in FIG. 1, in the case that the electronic device shown in the embodiment is installed with a camera application corresponding to the camera module, the interface of the electronic device 1 can display a first icon 1001 of the camera application. The camera application includes application software capable of applying the camera module, such as WeChat, QQ, etc. The detection element is, for example, the display screen of the electronic device, as shown in FIG. 1. When the display screen of the electronic device detects that the first icon 1001 of the camera application receives a user input click trigger event, the processor can control the camera module 10 to realize the above-mentioned anti-shake, focusing, and adjusting the amount of light control function in response to the click operation.

[0481] Figure 86 Figure 86 Figure 86 It should be noted that, for the foregoing various embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the order of the described actions, because according to the present application, some steps can be performed in other order or simultaneously.

[0482] It should be noted that, for the foregoing various embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the order of the described actions, because according to the present application, some steps can be performed in other order or simultaneously.

[0483] In the above-described embodiments, the description of each embodiment focuses on different aspects, and the components not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0484] The steps in the method of the embodiment of the present application can be adjusted, combined and deleted according to actual needs.

[0485] ​​​The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any change or replacement within the technical scope disclosed by the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An image capturing module (10), characterized by, The camera module (10) comprises: a base (413), a first support (415), a second support (414), a lens assembly (40), a variable aperture (20), a first driving mechanism (418), a second driving mechanism (421) and a third driving mechanism (24); the first support (415) and the second support (414) are both arranged on the base (413), and the second support (414) is sleeved outside the first support (415); the first support (415) has a cavity, and the lens assembly (40) is arranged in the cavity, and an optical axis of the lens assembly (40) is parallel to a central axis of the cavity; the variable aperture (20) is arranged on a side of the lens assembly (40) away from the base (413), and the third driving mechanism (24) is connected with the variable aperture (20); the first driving mechanism (418) is arranged between the first support (415) and the second support (414), and is used for driving the first support (415) and the lens assembly (40) to move along the optical axis of the lens assembly (40); the second driving mechanism (421) is arranged between the second support (414) and the base (413), and is used for driving the first support (415), the second support (414) and the lens assembly (40) to move along a plane perpendicular to the optical axis of the lens assembly (40), and the second driving mechanism (421) comprises an SMA wire (4212), and the second support (414) is connected with the base (413) through the SMA wire (4212).

2. The camera module (10) according to claim 1, characterized in that The lens assembly (40) comprises: a first side (4001) and a second side (4002), and an arc of the first side (4001) is smaller than an arc of the second side (4002).

3. The camera module (10) according to claim 2, characterized in that The first side (4001) is a plane, and the second side (4002) is an arc surface.

4. The camera module (10) according to claim 2 or 3, characterized in that The shape of the first support (415) is matched with the shape of the lens assembly (40).

5. The camera module (10) of claim 1, wherein, The camera module (10) further comprises: an elastic member (50), which is used for providing elastic force for the second support (414) and the lens assembly (40) to move from a first position to a second position, a direction from the first position to the second position is along the optical axis of the lens assembly (40), the first position is closer to the base (413) than the second position, the first driving mechanism (418) drives the second support (414) and the lens assembly (40) to move along the optical axis of the lens assembly (40) between the second position and a third position, and the second position is between the first position and the third position.

6. The camera module (10) according to claim 5, characterized in that The elastic member (50) is arranged below the first support (415), when the first support (415) and the lens assembly (40) are located at the first position, the first support (415) is in contact with the elastic member (50), the elastic member (50) is deformed, and the elastic force from the first position to the second position is generated.

7. The camera module (10) according to claim 6, characterized in that When the first support (415) and the lens assembly (40) move between the second position and the third position, the first support (415) is separated from the elastic member (50).

8. The camera module (10) according to any one of claims 5-7, characterized in that The elastic member (50) includes a first lug (501), a second lug (502), and an elastic section (503) connected between the first lug (501) and the second lug (502), the first lug (501) and the second lug (502) are fixed on the second support (414), and the elastic section (503) extends below the first support (415). When the first support (415) and the lens assembly (40) are located at the first position, the first support (415) is in contact with the elastic section (503), the elastic section (503) is deformed, and the elastic force from the first position to the second position is generated.

9. The camera module (10) according to claim 1, characterized in that The camera module (10) comprises a sliding rod (53), the sliding rod (53) is connected with the second support (414), the first support (415) is provided with a sliding groove (531), and the sliding rod (53) is in sliding connection with the sliding groove (531).

10. The camera module (10) according to claim 9, characterized in that The camera module (10) further comprises a first magnetic component (54), the first magnetic component (54) is used for generating an attractive force between the first support (415) and the sliding rod (53).

11. The camera module (10) according to claim 10, characterized in that The first driving mechanism (418) comprises a magnet (4181) and a first coil (4182) opposite to the magnet (4181), one of the magnet (4181) and the first coil (4182) is arranged on the second support (414), and the other is arranged on the first support (415), and the first magnetic component (54) is farther away from the magnet (4181) than the sliding rod (53).

12. The camera module (10) according to claim 1, characterized in that The camera module (10) comprises a plurality of balls (424), and the plurality of balls (424) are arranged between the base (413) and the second support (414).

13. The camera module (10) according to claim 12, characterized in that The camera module (10) further comprises a second magnetic component (426), the second magnetic component (426) is arranged between the base (413) and the second support (414), under the action of the magnetic attraction of the second magnetic component (426), the second support (414) and the ball (424) are in contact, and in the state that the second support (414) and the ball (424) are in contact, the second support (414) and the base (413) have a gap therebetween.

14. The camera module (10) of claim 1, wherein, The second driving mechanism (421) comprises a movable jaw (4213) and a fixed jaw (4211), the SMA wire (4212) connects the movable jaw (4213) and the fixed jaw (4211), the movable jaw (4213) is fixed on the second support (414), and the fixed jaw (4211) is fixed on the base (413).

15. The camera module (10) of claim 1, wherein, The second support (414) comprises: a main body part (414A) having a cavity in the main body part (414A), the first support (415) is arranged in the cavity, and the first driving mechanism (418) is arranged between the main body part (414A) and the first support (415); an extension part (414B) arranged on one side of the main body part close to the base (413), the extension part (414B) extends along the outer edge of the main body part in a direction away from the main body part (414A), and a gap is formed between the extension part (414B) and the base (413), and the second driving mechanism (421) is arranged in the gap.

16. The camera module (10) of claim 1, wherein, The camera module (10) further comprises a module circuit board (80) and an electrical connection structure. The first driving mechanism (418), the second driving mechanism (421) and the third driving mechanism (24) are electrically connected with the circuit board of the camera driving motor through the electrical connection structure.

17. The camera module (10) according to claim 16, characterized in that The electrical connection structure comprises: a first FPC (61) arranged on the second support (414), the first FPC (61) is electrically connected with the module circuit board (80); a first conductive lead wire (621) arranged on the second support (414), a first end of the first conductive lead wire (621) is electrically connected with the first driving mechanism (418), and a second end of the first conductive lead wire (621) is electrically connected with the first FPC (61); a first spring arm (427), a first end of the first spring arm (427) is connected with the second support (414), and a second end of the first spring arm (427) is fixed with the base (413); a second conductive lead wire (63) arranged on the base (413), the second driving mechanism (421) is electrically connected with the module circuit board (80) through the second conductive lead wire (63); a grounding lead wire (66) arranged on the base (413), one end of the grounding lead wire (66) is electrically connected with the second end of the first spring arm (427), and the other end of the grounding lead wire (66) is electrically connected with the module circuit board (80) of the camera module (10); a second spring arm (58), a part of the second spring arm (58) is electrically connected with the variable aperture (20).

18. The camera module (10) according to claim 17, characterized in that The first driving mechanism (418) is electrically connected with the first FPC (61) through the first conductive lead (621), and is electrically connected with the first driving chip (803) through the first FPC (61).

19. The camera module (10) according to claim 18, characterized in that The second driving mechanism (421) is electrically connected with the first driving chip (803) through the second conductive lead (63).

20. The camera module (10) according to claim 18 or 19, characterized in that The camera module (10) further comprises a position sensor (11) for detecting the position of the second support (414) relative to the base (413), the position sensor (11) being electrically connected with the first driving chip (803) through the first FPC (61).

21. The camera module (10) according to any one of claims 17-19, characterized in that, The electric connection structure further comprises a third conductive lead (622) arranged in the second support (414), the variable aperture (20) comprising a second driving chip (28) and a second FPC (27), the third driving mechanism (24) being electrically connected with the second driving chip (28), the second driving chip (28) being electrically connected with the second FPC (27), a part of the second spring arm (58) being connected with the second FPC (27), another part of the second spring arm (58) being electrically connected with the first FPC (61) through the third conductive lead (622), so that the second driving chip (28) is electrically connected with the module circuit board (80) through the second FPC (27), the second spring arm (58), the third conductive lead (622) and the first FPC (61).

22. The camera module (10) according to claim 21, characterized in that The variable aperture (20) further comprises a fixing seat (21) having a first light-transmitting hole (101); the fixing seat (21) comprises a bottom plate (211) and a side plate (213), the side plate (213) being arranged on the bottom plate (211) and surrounding the periphery of the first light-transmitting hole (101); a first opening (130) is formed in the side plate (213) and penetrates the side plate (213) in a direction perpendicular to the bottom plate (211); A rotating support (22) is located in the fixing seat (21) and is rotationally connected with the fixing seat (21); the rotating support (22) is arranged around the periphery of the first light-transmitting hole (101), and comprises a ring-shaped portion (221) and a lug (222), the ring-shaped portion (221) being arranged around the periphery of the first light-transmitting hole (101), and the lug (222) being arranged on the side wall of the ring-shaped portion (221); the lug (222) is located in the first opening (130), and the first opening (130) exposes the side surface of the lug (222); A plurality of blades (23) are arranged on the rotating support (22), the blades (23) are in sliding connection with the annular part (221) and in rotating connection with the fixed seat (21); the plurality of blades (23) are annularly distributed to surround an aperture (100), the aperture (100) is in communication with the first light-transmitting hole (101); The third driving mechanism (24) comprises: A magnet assembly (241) is arranged on the side of the lug (222) away from the blade (23) and connected with the rotating support (22); A second coil (242) is arranged on the side of the magnet assembly (241) facing the fixed seat (21).

23. The camera module (10) according to claim 22, characterized in that The second FPC (27) is arranged on the side of the fixed seat (21) away from the blade (23), and the second FPC (27) is connected with the fixed seat (21); The second coil (242) is arranged on the side of the second FPC (27) facing the rotating support (22) through the fixed seat (21), and the second coil (242) is connected with the second FPC (27).

24. The camera module (10) according to claim 22, characterized in that The fixed seat (21) comprises: A first plastic part (2101); A first metal support (2102) is embedded in the first plastic part (2101), and the first metal support (2102) and the first plastic part (2101) are connected as a first integrated structure (2100); the first metal support (2102) is grounded on the second FPC (27).

25. The camera module (10) of claim 22, wherein: The second coil (242) is arranged on the fixed seat (21) and directly connected with the fixed seat (21).

26. The camera module (10) according to claim 25, characterized in that The fixed seat (21) comprises: A first plastic part (2101); A first metal support (2102) is embedded in the first plastic part (2101); A metal grounding trace (2103) is embedded in the first plastic part (2101), and the metal grounding trace (2103) is connected with the first metal support (2102); A metal signal trace (2104) is embedded in the first plastic part (2101), and the metal signal trace (2104), the metal grounding trace (2103), the first metal support (2102), and the first plastic part (2101) are connected as a first integrated structure (2100); A metal grounding terminal (2105) is arranged outside the first plastic part (2101), and the metal grounding terminal (2105) is connected with the metal grounding trace (2103); A metal signal terminal (2106) is arranged outside the first plastic part (2101), and the metal signal terminal (2106) is connected with the metal signal trace (2104).

27. The camera module (10) of claim 1, wherein, The variable aperture (20) is provided with a protrusion on the side close to the lens assembly (40), and the lens assembly (40) is provided with a groove, and the protrusion and the groove are matched.

28. The camera module (10) according to claim 27, characterized in that The cross-sectional shape of the groove is dovetail-shaped.

29. An electronic device, comprising: It comprises: The shell, and the camera module (10) as claimed in any one of claims 1-28, the shell comprising at least one lens assembly (40) hole; The camera module (10) is arranged in the lens assembly (40) hole.

30. The electronic device of claim 29, wherein, The electronic device further comprises a processor (5); The camera module (10) comprises a module circuit board (80), and the module circuit board (80) is electrically connected with the processor (5) through a third FPC (804).

31. The electronic device of claim 30, wherein, The module circuit board (80) is provided with a first driving chip (803), and the first driving mechanism (418) and the second driving mechanism (421) are electrically connected with the first driving chip (803), and the first driving chip (803) is electrically connected with the processor (5). The first driving chip (803) is used for controlling the first driving mechanism (418) and the second driving mechanism (421).

32. The electronic device of claim 31, wherein, The electronic device further comprises a position sensor (11), and the position sensor (11) is electrically connected with the first driving chip (803), the position sensor (11) is used for detecting the position of the second support (414) relative to the base (413), and the first driving chip (803) is used for controlling the second driving mechanism (421) according to the position information detected by the position sensor (11).

33. The electronic device of claim 32, wherein, The position sensor (11) comprises a Hall sensor and a gyroscope.

34. The electronic device of any of claims 30-33, wherein, The variable aperture (20) comprises a second driving chip (28), the second driving chip (28) is electrically connected with the processor (5), the second driving chip (28) is electrically connected with the third driving mechanism, and the second driving chip (28) is used for controlling the third driving mechanism.

35. The electronic device of claim 34, wherein, The second driving chip (28) is integrated with a Hall sensor.

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