Aperture components, camera modules and electronic equipment

Abstract

The present application discloses an aperture assembly, a camera module and an electronic device. The aperture assembly includes a base, an elastic membrane, a deformation element, and a first power-connected element and a second power-connected element connected to the deformation element. The deformation element arranged around the periphery of the light-through hole is connected to the inner edge of the light-through hole formed by the elastic membrane, and the deformation element is configured to be deformed after being energized to drive the inner edge to deform and thereby change the aperture of the light-through hole. When energized, the deformation of the deformation element is a continuous process. The deformation state of the deformation element can be controlled by controlling the power supply conditions to flexibly change the size of the aperture of the light-through hole. In the process of changing the aperture of the light-through hole, the deformation of the deformation element becomes the main power source for the deformation of the inner edge, and there is no need to use other forces to assist in changing the aperture of the light-through hole, making the change of the aperture of the light-through hole easier to control, and the overall structure of the aperture assembly is simple.

Description

Technical Field

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

[0002] With the development of science and technology, devices with diversified camera functions have gained wide popularity. In order to improve the user experience, a variable aperture is set on the lens of the electronic device. By adjusting the aperture size of the aperture to control the amount of light received by the lens, the imaging effect of the lens can be effectively optimized.

[0003] However, the inventors found that the structure of the aperture assembly in the related art is too complicated, and the aperture of the aperture assembly does not change smoothly enough, resulting in poor flexibility and stability in adjusting the aperture of the aperture assembly, which affects the imaging effect of the lens. In addition, the structure of the aperture assembly is too complicated, which will also lead to a larger overall volume of the aperture assembly, so it is necessary to improve the structure of the aperture assembly. Summary of the invention

[0004] In order to solve the above problems, the embodiments of the present application provide an aperture assembly, a camera module and an electronic device.

[0005] In a first aspect, an embodiment of the present application provides an aperture assembly, the aperture assembly comprising a base, an elastic membrane, a deformation element, a first power connection element, and a second power connection element, the base having an installation opening, a first power connection port, and a second power connection port, the elastic membrane being installed corresponding to the installation opening, and the elastic membrane being an annular structure having a light-through hole, the elastic membrane comprising an inner edge portion surrounding the light-through hole, an outer edge portion connected to a portion of the base adjacent to the installation opening, and a connecting portion connecting the inner edge portion and the outer edge portion; the deformation element is arranged around the periphery of the light-through hole, and the deformation element is connected to a wall surface of the inner edge portion away from the center of the light-through hole, the first power connection element is led from the first power connection port to be electrically connected to one end of the deformation element, and the second power connection element is led from the second power connection port to be electrically connected to the other end of the deformation element. The first power connection element and the second power connection element are both used to receive an electrical signal and transmit the electrical signal to the deformation element, so that the deformation element is deformed, thereby driving the inner edge portion to be deformed to change the aperture of the light-through hole.

[0006] Based on the aperture assembly of the embodiment of the present application, a deformation element arranged around the periphery of the light-through hole is connected to the inner edge of the elastic membrane, and a first power-connecting element and a second power-connecting element are respectively connected to the deformation element from two power-connecting ports of the base, and the first power-connecting element and the second power-connecting element are used to receive an electrical signal and transmit the electrical signal to the deformation element, and the deformation element is configured to be deformed after receiving the electrical signal, so that the deformation element can drive the inner edge to deform and thus change the aperture of the light-through hole. When power is turned on, the deformation of the deformation element is a continuous process, and the deformation state of the deformation element can be controlled by controlling the power supply conditions to flexibly change the size of the aperture of the light-through hole. In the process of changing the aperture of the light-through hole, the deformation of the deformation element becomes the main power source for the deformation of the inner edge, and there is no need to use other forces to assist in changing the aperture of the light-through hole, so that the change of the aperture of the light-through hole is easier to control, and the overall structure of the aperture assembly is simple.

[0007] In some exemplary embodiments, the deformation element includes a first deformation segment and two second deformation segments respectively connected to the two ends of the first deformation segment; the first deformation segment surrounds the periphery of the light-through hole, and the two second deformation segments are electrically connected to the first power connection element and the second power connection element respectively after intersecting; or the first deformation segment is partially arranged around the periphery of the light-through hole, the two second deformation segments are electrically connected to the first power connection element and the second power connection element respectively, and the first power connection element and the second power connection element intersect; or the first deformation segment is partially arranged around the periphery of the light-through hole, the two second deformation segments are electrically connected to the first power connection element and the second power connection element respectively, and the first power connection element and the second power connection element are arranged at intervals.

[0008] Based on the above embodiment, the first deformable segment and the second deformable segment both deform and contract or expand to synchronously drive the inner edge portion and the connecting portion to deform to change the aperture of the light hole, and the first electrical connection element and the second electrical connection element pull the second deformable segment at both ends to maintain the closedness of the area enclosed by the first deformable segment and the second deformable segment.

[0009] In some exemplary embodiments, there are multiple deformation elements, and the two second deformation segments in each deformation element constitute a group of second deformation segments. Along the circumference of the light-through hole, the multiple groups of second deformation segments are evenly distributed, and the circumference of the first deformation segments of each deformation element arranged around the periphery of the light-through hole are equal to constrain the inner edge to form a light-through hole.

[0010] Based on the above embodiment, the multiple first deformation segments can be mutually restrained. On the one hand, after the multiple first deformation segments are connected to the inner edge portion, the orthographic projection of the light hole surrounded by the inner edge portion is closer to a circle, so as to better control the amount of light entering and the light entering area. On the other hand, when the first power connection element and the second power connection element are deformed and respectively pull the first deformation segment and the second deformation segment so that the center of the light hole has a tendency to shift, the center of the light hole can be stabilized to prevent the center of the light hole from shifting in a large range and affecting the amount of light passing.

[0011] In some exemplary embodiments, the elastic return member is configured to be retractable toward the center of the light-transmitting hole, and the elastic return member includes a first end and a second end arranged opposite to each other along its retraction direction, the first end is connected to the outer edge portion or the base, the second end is connected to a portion of the inner edge portion between the two second deformation segments, and the distances from the connecting end of the second end and the inner edge portion to the two second deformation segments are equal, or the second end is connected to a portion of the inner edge portion connecting the two second deformation segments.

[0012] Based on the above embodiment, an elastic reset member is provided to pull and restrain the deformation element, so as to assist the deformation element and the elastic membrane in resetting, thereby improving the stability of the center of the light-through hole.

[0013] In some exemplary embodiments, the first power connection element and the second power connection element are both configured to deform after receiving an electrical signal, and the first power connection element and the second power connection element are made of the same material as the first deformation section and the two second deformation sections and are integrally provided.

[0014] Based on the above embodiments, the structural strength of the first power connection element and the second power connection element connected to the deformable element is ensured, and after receiving the electrical signal, the first power connection element, the second power connection element, the first deformable segment and the two second deformable segments are all deformed to drive the inner edge portion to deform and change the aperture of the light hole. The first power connection element and the second power connection element are deformed at both ends to pull the two second deformable segments, thereby assisting in changing the aperture of the light hole.

[0015] In some exemplary embodiments, the deformable element is disposed around the periphery of the light-through hole to form a closed structure and connected to the inner edge portion, and the first electrical connection element and the second electrical connection element are electrically connected to the deformable element of the closed structure respectively.

[0016] Based on the above embodiments, the closed deformable element receives an electrical signal and deforms to gather or expand toward the center of the light-through hole, thereby driving the inner edge and the connecting portion to deform and changing the aperture of the light-through hole.

[0017] In some exemplary embodiments, the aperture assembly further includes two power terminals disposed at the first power port and the second power port, and the two power terminals are respectively connected to the first power element and the second power element to transmit electrical signals to the deformation element.

[0018] Based on the above embodiment, an electrical terminal is provided so that the deformable element can be connected to an external power source, and the mounting groove on the base can facilitate the installation of the electrical terminal, making the entire aperture assembly compact and presenting a good appearance.

[0019] In some exemplary embodiments, the base is provided with two guide posts corresponding to the first power connection element and the second power connection element respectively, and the surfaces of the two guide posts are in contact with the surfaces corresponding to the first power connection element and the second power connection element respectively to limit the movement direction of the first power connection element and the second power connection element when the deformation element is deformed.

[0020] Based on the above embodiment, by setting the guide column to act on the first and second power connection elements, it is avoided that the first and second power connection elements move too far, causing the first and second deformation segments to move too far and the center offset of the light hole to be too far.

[0021] In some exemplary embodiments, the inner edge portion has a lead wire channel arranged around the light-through hole and a avoidance opening connected to the lead wire channel, the deformation element arranged around the periphery of the light-through hole is installed in the lead wire channel, and the deformation element is electrically connected to the first power connection element and the second power connection element at the avoidance opening or adjacent to the avoidance opening; or the inner edge portion has a lead wire groove arranged around the light-through hole, the lead wire groove has an open end, the open end is arranged away from the center of the light-through hole, the deformation element is accommodated in the lead wire groove, and the deformation element is electrically connected to the first power connection element and the second power connection element at the open end or adjacent to the open end.

[0022] Based on the above embodiments, the deformation element is ensured to be smoothly routed and the connection stability between the deformation element and the inner edge portion is improved, so that when the deformation element is arranged around the outer periphery of the light-through hole, the deformation element can drive the inner edge portion to deform and change the aperture of the light-through hole.

[0023] In some exemplary embodiments, the first power connection element and the second power connection element are disposed on a side of the connection portion facing the installation opening; or the first power connection element and the second power connection element are disposed on a side of the connection portion away from the installation opening.

[0024] Based on the above embodiments, the positions of the first power connection element and the second power connection element are reasonably set to prevent the alignment of the first power connection element and the second power connection element from affecting the deformation of the elastic membrane.

[0025] In some exemplary embodiments, the aperture assembly further includes an annular support member coaxially disposed with the elastic membrane, the annular support member is connected to the outer edge portion, and a surface of the outer edge portion is connected to a wall surface of the base.

[0026] Based on the above embodiment, the outer edge portion is supported by the annular support member so that the outer edge portion is connected to the base and the connection stability between the outer edge portion and the base is improved, thereby improving the deformation stability of the inner edge portion.

[0027] In some exemplary embodiments, along the axial direction of the elastic membrane, the connecting portion has a first surface and a second surface that are relatively arranged, and the first surface and the second surface are both arc-shaped surfaces that are bent away from the installation opening, or the first surface and the second surface are both arc-shaped surfaces that are bent toward the installation opening.

[0028] Based on the above embodiment, by setting the first surface and the second surface to be arc-shaped surfaces bent in the same direction, the tendency of the connecting portion to deform toward the same side is improved, and the deformation stability of the connecting portion is improved.

[0029] In some exemplary embodiments, the base has a receiving groove communicated with the mounting opening, the deformation element and a portion of the elastic membrane are received in the receiving groove, and the outer edge portion is connected to the wall surface of the receiving groove.

[0030] Based on the above embodiment, by adjusting the depth of the accommodating groove along the axis of the elastic membrane, a deformation space is reserved for the elastic membrane in the axial direction of the elastic membrane.

[0031] In some exemplary embodiments, the deformation element is a shape memory alloy wire that can be deformed after being energized, and the deformation element is insulated and connected to the elastic membrane.

[0032] Based on the above embodiments, shape memory alloy wire is used to enable the deformation element to have the characteristic of being able to deform after receiving an electrical signal.

[0033] In a second aspect, an embodiment of the present application provides a camera module, which includes a photosensitive component, a lens, and an aperture component as described above. The photosensitive component has a photosensitive surface, and the lens is arranged corresponding to the photosensitive surface.

[0034] The aperture assembly cover is arranged on the lens, and the light-through hole is arranged corresponding to the lens.

[0035] Based on the camera module of the embodiment of the present application, by controlling the deformation of the deformation element to drive the deformation of the elastic membrane to change the aperture of the light hole, the amount of light entering through the lens can be effectively changed, thereby changing the imaging quality of the camera module. The deformation of the deformation element is a continuous deformation after being powered on, which drives the aperture of the light hole to change continuously, making the camera module of the present application more accurate and flexible in adjusting the amount of light entering.

[0036] In a third aspect, an embodiment of the present application provides an electronic device, which includes a housing and a camera module as described above, wherein the camera module is installed in the housing.

[0037] Based on the electronic device of the embodiment of the present application, by installing the above camera module, the electronic device can also have the characteristics of variable aperture and easy adjustment of the amount of light entering, thereby obtaining good imaging quality and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 It is a schematic diagram of the three-dimensional structure of the aperture assembly in the embodiment of the present application;

[0040] Figure 2 An exploded view of the aperture assembly in an embodiment of the present application;

[0041] Figure 3 This is a front view of the aperture assembly in the embodiment of the present application;

[0042] Figure 4a for Figure 3 The cross-sectional view along the AA direction;

[0043] Figure 4b This is a cross-sectional view of an embodiment of the present application in which the inner edge portion has a lead groove;

[0044] Figure 5 It is a rear view of the connection between the elastic membrane and the deformation element in the embodiment of the present application;

[0045] Figure 6 This is a front view of the deformation element in the embodiment of the present application in a stretched state without being powered on;

[0046] Figure 7 This is a front view of the deformation element in the embodiment of the present application in a state of being deformed when connected to electricity;

[0047] Figure 8 A front view of the first power connection element and the second power connection element in the embodiment of the present application;

[0048] Fig. 9 It is a front view of the embodiment of the present application when the first power connection element and the second power connection element are arranged at intervals;

[0049] Fig.10 This is a rear view of the elastic membrane connected to two deformation elements in the embodiment of the present application;

[0050] Fig.11 It is a rear view of the connection between the elastic reset member and the inner edge portion in the embodiment of the present application;

[0051] Fig.12 It is a front view of the closed structure deformation element connected to the first power connection element and the second power connection element in the embodiment of the present application;

[0052] Fig.13A cross-sectional view of the connection between the deformation element in a closed structure and the first power connection element in the embodiment of the present application;

[0053] Fig.14 This is a schematic diagram of the three-dimensional structure of the camera module in the embodiment of the present application;

[0054] Fig.15 This is a schematic diagram of the camera module assembly structure in an embodiment of the present application. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0056] like Figures 1 to 13 , which is a schematic diagram of the structure of an aperture assembly 100 provided in an embodiment of the present application. The aperture assembly 100 includes a base 110, an elastic membrane 120 mounted on the base 110, a deformation element 130 connected to the elastic membrane 120, and a first electrical connection element 140a and a second electrical connection element 140b connected to the deformation element 130. The base 110 of the aperture assembly 100 can be connected to a lens or other mounting structures to mount the aperture assembly 100 corresponding to the lens.

[0057] like Figure 1 and Figure 2 As shown, specifically, the base 110 has a mounting opening 111, and the mounting opening 111 is arranged corresponding to the lens, so that light from the side where the base 110 is located can pass through the mounting opening 111 and then be projected to the lens. During assembly, the position of the base 110 can be adjusted so that the lens is partially accommodated in the mounting opening 111, or the lens can be located on one side of the base 110.

[0058] The elastic membrane 120 is an annular structure having a light hole 121. The elastic membrane 120 is installed corresponding to the mounting opening 111, and the light hole 121 corresponds to the lens. The elastic membrane 120 is also a light-shielding membrane that can block light. Part of the light from the object side is blocked by the elastic membrane 120, and the other part of the light passes through the light hole 121 and the mounting opening 111 in sequence and is projected onto the lens.

[0059] The elastic membrane 120 includes an inner edge portion 122 that surrounds the light hole 121, a connecting portion surrounding the inner edge portion 122, and an outer edge portion 123 surrounding the connecting portion, so that the light hole 121 is located in the central area of ​​the elastic membrane 120, and the outer edge portion 123 is connected to the portion of the base 110 adjacent to the mounting opening 111 to fix the elastic membrane 120 on the base 110. It should be noted that during assembly, the connection position of the outer edge portion 123 and the base 110 needs to be adjusted so that the central axis of the light hole 121 overlaps with the optical axis of the lens to avoid misalignment of the light hole 121 and the lens affecting the imaging quality.

[0060] The elastic membrane 120 is also a reversible elastic membrane that can be deformed under the action of external force and restore the deformation after the external force is removed. Among them, the outer edge 123 of the elastic membrane 120 is used to connect with the base 110 to fix the elastic membrane 120, and the inner edge 122 and the connecting portion 124 are the main deformation parts of the elastic membrane 120 to buffer the stress of the elastic membrane 120 caused by the external force. The elastic membrane 120 can be an LCP (Liquid Crystal Polyester) elastic membrane 120. The elastic membrane 120 made of LCP material can make the elastic membrane 120 have light-shielding properties, reversible deformation properties and insulation properties, so that the elastic membrane 120 can cooperate with other components in the aperture assembly 100 to change the aperture of the light hole.

[0061] The deformation element 130 is a reversible deformation element 130 that deforms after receiving an electrical signal and recovers the deformation after power is cut off. The deformation element 130 is disposed around the periphery of the light-through hole 121 and is connected to the wall surface of the inner edge portion 122 away from the center of the light-through hole 121. The first electrical connection element 140a is led from the first electrical connection port to be electrically connected to one end of the deformation element 130, and the second electrical connection element 140b is led from the second electrical connection port to be electrically connected to the other end of the deformation element 130. The first electrical connection element 140a and the second electrical connection element 140b are both used to receive electrical signals and transmit the electrical signals to the deformation element 130. The deformation element 130 is used to deform after receiving the electrical signals transmitted by the first electrical connection element 140a and the second electrical connection element 140b, thereby driving the inner edge portion 122 to deform to change the aperture of the light-through hole 121, thereby achieving the purpose of changing the amount of light passing. Specifically, the deformation of the deformation element 130 disposed around the outer periphery of the light-through hole 121 is a deformation that contracts or expands toward the center of the light-through hole 121, so that the deformation element 130 can drive the inner edge portion 122 to contract or expand toward the center of the light-through hole 121, thereby changing the aperture of the light-through hole 121. The deformation element 130 can be a shape memory alloy (Shape Memory Alloy, referred to as SMA) wire, and in some other embodiments, the deformation element 130 can also be made of other materials, so that the deformation of the deformation element 130 after being powered on can drive the elastic membrane 120 to change the aperture of the light-through hole 121.

[0062] The aperture assembly 100 further includes two power terminals 160 provided at the first power port and the second power port, and the two power terminals are respectively electrically connected to the first power element 140a and the second power element 140b to transmit electrical signals to the deformation element 130. A circuit board connected to an external power source may be provided in the housing of the power terminal 160, and the circuit board is electrically connected to the thermistor. The thermistors in the two power terminals 160 may be respectively welded to the first power element 140a and the second power element 140b to achieve electrical connection.

[0063] The aperture assembly 100 of this embodiment is connected to the inner edge 122 of the elastic membrane 120 by setting a deformation element 130 around the periphery of the light-through hole 121, and the first power-connecting element 140a and the second power-connecting element 140b are respectively connected to the deformation element 130 from two power-connecting ports of the base 110, and the first power-connecting element 140a and the second power-connecting element 140b are used to receive electrical signals and transmit the electrical signals to the deformation element 130, and the deformation element 130 is configured to generate deformation after receiving the electrical signals, so that the deformation element 130 can drive the inner edge 122 to deform and thus change the aperture of the light-through hole 121. When the power is turned on, the deformation of the deformation element 130 is a continuous process, and the deformation state of the deformation element 130 can be controlled by controlling the power supply conditions to flexibly change the aperture size of the light-through hole 121. During the process of changing the aperture of the light hole 121, the deformation of the deformation element 130 becomes the main driving force for the deformation of the inner edge portion 122. There is no need to use other forces to assist in changing the aperture of the light hole 121, making the change of the aperture of the light hole 121 easier to control. The overall structure of the aperture assembly 100 is simple, which is conducive to the miniaturized design of the aperture assembly 100.

[0064] The outer edge 123 is connected to the base 110, and the inner edge 122 is deformed in the inner circle under the influence of the deformation element 130. The connection stability between the outer edge 123 and the base 110 will affect the deformation stability of the inner edge 122. Figure 2 As shown in FIG. 4 , the aperture assembly 100 further includes an annular support member 150 coaxially arranged with the elastic membrane 120, the annular support member 150 is connected to the outer edge portion 123, and the outer edge portion 123 is connected to the wall surface of the base 110. During assembly, the outer edge portion 123 can be connected to the annular support member 150 to tension the elastic membrane 120, and then the annular support member 150 and the elastic membrane 120 are moved together to connect the surface of the outer edge portion 123 to the surface of the base 110. The annular support member 150 can be made of a hard material with a certain structural strength, for example, the annular support member 150 can be made of a metal material, and the annular support member 150 provides support for the outer edge portion 123, thereby improving the connection stability of the outer edge portion 123 and the base 110, and further improving the deformation stability of the inner edge portion 122.

[0065] The outer edge 123 may have an annular channel coaxial with the elastic membrane 120, and the annular support member 150 may be accommodated in the annular channel, or the outer edge may be completely wrapped around the outer periphery of the annular support member 150 along the circumference of the annular support member 150. After being connected with the annular support member 150, the surface of the outer edge 123 may be bonded to the surface of the base 110 by colloid, or a clamping member may be provided on the base 110 to clamp the outer edge 123 and the annular support member 150 together to the clamping member of the base 110, for example, the clamping member may include a clamping seat, a buckle or a clamping groove, etc.

[0066] In some other embodiments, the outer edge portion 123 may also be directly fixed to the base 110, for example, the outer edge portion 123 may be directly clamped or bonded to the base 110 to tension the elastic membrane 120; or other fasteners may be used to fix the outer edge portion 123 to the base 110, for example, the fastener may be a clamping ring, etc., so that one end of the clamping ring can be clamped to the base 110, and the other end of the clamping ring can act on the outer edge portion 123 to make the outer edge portion 123 abut against the wall of the base 110 to fix the outer edge portion 123, thereby tensioning the elastic membrane 120.

[0067] The inner edge portion 122 is connected to the deformation element 130 at the inner circle, and the deformation element 130 is connected to the wall surface of the inner edge portion 122 away from the center of the light hole 121. Specifically, Figure 4a and Figure 5 As shown, the inner edge portion 122 has a lead channel 1221 arranged around the light-through hole 121 and a position-avoiding opening 1222 communicating with the lead channel 1221. The deformable element 130 arranged around the outer periphery of the light-through hole 121 is installed on the lead channel 1221, and the deformable element 130 is electrically connected to the first power-connecting element 140a and the second power-connecting element 140b at or near the position-avoiding opening 1222, respectively, so as to ensure that the deformable element 130 can drive the inner edge portion 122 to deform and change the aperture of the light-through hole 121 when the portion of the deformable element 130 arranged around the outer periphery of the light-through hole 121 is deformed.

[0068] In some other embodiments, such as Figure 4b As shown, the inner edge portion 122 has a lead groove 1223 arranged around the light-through hole 121, and the lead groove 1223 has an open end 1224, which is arranged away from the center of the light-through hole 121, so that the portion of the deformable element 130 arranged around the outer periphery of the light-through hole can pass through the open end 1224 and be accommodated in the lead groove 1223. The deformable element 130 is electrically connected to the first power-connecting element 140a and the second power-connecting element 140b at the open end 1224 or near the open end 1224, respectively. When the portion of the deformable element 130 arranged around the outer periphery of the light-through hole 121 is deformed, the inner edge portion 122 can be deformed to change the aperture of the light-through hole 121, and the assembly of the deformable element 130, the first power-connecting element 140a and the second power-connecting element 140b is facilitated.

[0069] like Figure 2 , Figure 5 and Figure 6 As shown, the deformation element 130 may include a first deformation section 131, two second deformation sections 132 respectively connected to the two ends of the first deformation section 131, and the first power-connecting element 140a and the second power-connecting element 140b are respectively connected to the two second deformation sections 132. Specifically, the first deformation section 131 surrounds the periphery of the light-through hole 121, and the two second deformation sections 132 are respectively electrically connected to the first power-connecting element 140a and the second power-connecting element 140b after intersecting, so that the orthographic projections of the first deformation section 131 and the second deformation section 132 are a closed shape arranged around the periphery of the light-through hole 121. Further, the first deformation section 131 may be installed in a lead-in channel 1221 or a lead-in groove 1223 of the inner edge portion 122, and the two second deformation sections 132 intersect and pass through the avoidance opening 1222 or the open end 1224 of the inner edge portion 122. After the first power-connecting element 140a and the second power-connecting element 140b are electrically connected, as shown in FIG. Figure 6 and Figure 7 As shown, the first deformable segment 131 and the second deformable segment 132 are deformed and contracted or expanded, so as to synchronously drive the inner edge portion 122 and the connecting portion 124 to deform to change the aperture of the light hole 121. The first electrical connection element 140a and the second electrical connection element 140b pull the second deformable segment 132 at both ends to maintain the closedness of the area enclosed by the first deformable segment 131 and the second deformable segment 132.

[0070] The first power connection element 140a and the second power connection element 140b are both configured to be deformed after receiving an electrical signal, and the first power connection element 140a and the second power connection element 140b are made of the same material as the first deformable segment 131 and the two second deformable segments 132 and are integrally arranged to ensure the structural strength of the connection between the first power connection element 140a and the second power connection element 140b and the deformable element 130, and after the first power connection element 140a and the second power connection element 140b receive an electrical signal, the first power connection element 140a, the second power connection element 140b, the first deformable segment 131 and the two second deformable segments 132 are all deformed to drive the inner edge portion 122 to deform and change the aperture of the light-through hole 121, wherein the first power connection element 140a and the second power connection element 140b deform at both ends to pull the two second deformable segments 132, thereby assisting in changing the aperture of the light-through hole 121.

[0071] The first power connection element 140a, the second power connection element 140b, the first deformable segment 131 and the two second deformable segments 132 that are integrally arranged may be in the shape of a thread, so that the first deformable segment 131 can be connected to the inner edge portion 122 around the outer periphery of the light-through hole 121. After the two second deformable segments 132 intersect, the first power connection element 140a and the second power connection element 140b that are respectively connected to the two second deformable segments 132 may be sequentially passed through one side of the outer edge portion 123 and the connecting portion 124 and then led to the base 110, thereby forming a smooth wiring path, which facilitates simplifying the structure of the aperture assembly 100.

[0072] In some other embodiments, such as Figure 8 As shown, the first deformable segment 131 may also be partially disposed around the periphery of the light-through hole 121, and the two second deformable segments 132 are electrically connected to the first power connection element 140a and the second power connection element 140b respectively, and the first power connection element 140a and the second power connection element 140b intersect; or as shown Fig. 9 As shown, the first deformable segment 131 is partially disposed around the periphery of the light-through hole 121, and the two second deformable segments 132 are electrically connected to the first power-connecting element 140a and the second power-connecting element 140b respectively, and the first power-connecting element 140a and the second power-connecting element 140b are disposed at intervals. The first power-connecting element 140a and the second power-connecting element 140b in the above two connection structures are also made of the same material as the first deformable segment 131 and the two second deformable segments 132 and are integrally disposed in a thread shape. After the first power-connecting element 140a and the second power-connecting element 140b receive an electrical signal, the first power-connecting element 140a, the second power-connecting element 140b, the first deformable segment 131 and the two second deformable segments 132 are all deformed to drive the inner edge portion 122 to deform and change the aperture of the light-through hole 121.

[0073] Furthermore, in the above two connection schemes in which the first deformable segment 131 is partially disposed around the periphery of the light-through hole 121, the first deformable segment 131 can be installed in the lead channel 1221, and the inner edge portion 122 has avoidance openings 1222 corresponding to the two second deformable segments 132, respectively. The two second deformable segments 132 pass through the two avoidance openings 1222 and are respectively connected to the first power connection element 140a and the second power connection element 140b; in some other embodiments, the first deformable segment 131 can also be installed in the lead groove 1223, and the two second deformable segments 132 pass through the opening ends and are respectively connected to the first power connection element 140a and the second power connection element 140b.

[0074] Furthermore, if Figures 8 to 10As shown, the number of the deformation elements 130 can be multiple, and the two second deformation segments 132 in each deformation element 130 constitute a group of second deformation segments 132. Along the circumference of the light-through hole 121, the multiple groups of second deformation segments 132 are evenly distributed, and the circumferences of the multiple first deformation segments 131 arranged around the outer periphery of the light-through hole 121 in each deformation element 130 are equal, so as to constrain the inner edge portion 122 to form the light-through hole 121. By providing multiple deformation elements 130, the multiple first deformation segments 131 can be mutually restrained. On the one hand, after the multiple first deformation segments 131 are connected to the inner edge portion 122, the orthographic projection of the light-through hole 121 surrounded by the inner edge portion 122 is closer to a circle, so as to better control the amount of light entering and the light-entering area. On the other hand, when the first power connection element 140a and the second power connection element 140b are deformed to pull the first deformation section 131 and the second deformation section 132 so that the center of the light hole 121 tends to shift, the center of the light hole 121 can be stabilized to prevent the center of the light hole 121 from shifting in a large range and affecting the amount of light passing.

[0075] It can be understood that the first power connection element 140a and the second power connection element 140b can pull the two second deformable segments 132 at both ends, and then can be used to pull the moving directions of the first deformable segment 131 and the second deformable segment 132 after being powered on. In particular, when the first power connection element 140a and the second power connection element 140b can also be deformed when powered on, the first power connection element 140a and the second power connection element 140b have a stronger pulling effect on the first deformable segment 131 and the second deformable segment 132, respectively. Therefore, the moving range of the first power connection element 140a and the second power connection element 140b needs to be controlled. The base 110 is provided with two guide posts 180 corresponding to the first power connection element 140a and the second power connection element 140b respectively. The surfaces of the two guide posts 180 are in contact with the surfaces of the first power connection element 140a and the second power connection element 140b respectively to limit the movement direction of the first power connection element 140a and the second power connection element 140b when the deformable element 130 is deformed, so as to avoid the first power connection element 140a and the second power connection element 140b from moving too far, thereby causing the first deformable segment 131 and the second deformable segment 132 to move too far and causing the center of the light passage 121 to deviate too far. The first power connection element 140a and the second power connection element 140b can be extended to bypass the guide pillars 180 (for example, the first power connection element 140a and the second power connection element 140b are tangent to the surfaces of the two cylindrical guide pillars 180). When the first power connection element 140a and the second power connection element 140b are deformed, they are in sliding contact with the surfaces of the two guide pillars 180 to limit the range of movement of the first power connection element 140a and the second power connection element 140b, thereby improving the stability of the center of the light through hole 121.

[0076] In some other embodiments, such as Fig.11As shown, the aperture assembly 100 may also include an elastic reset member 170 corresponding to the deformation element 130, and the elastic reset member 170 is configured to be able to expand and contract toward the center direction of the light-through hole 121. For example, the elastic reset member 170 may be a strip-shaped expansion spring. The elastic reset member 170 includes a first end 171 and a second end 172 that are arranged opposite to each other along its expansion direction, and the first end 171 is connected to the outer edge portion 123 or the base 110. Further, when the first deformation segment 131 is partially arranged around the periphery of the light-through hole 121, the second end 172 is connected to a portion of the inner edge portion 122 between the two second deformation segments 132, and the distances from the second end 172 to the connection end of the inner edge portion 122 to the two second deformation segments 132 are equal; when the first deformation segment 131 surrounds the periphery of the light-through hole 121 and the two second deformation segments 132 intersect, the second end 172 is connected to a portion of the inner edge portion 122 connecting the two second deformation segments 132. The elastic reset member 170 is provided to pull and restrain the deformation element 130 , so as to assist the deformation element 130 and the elastic membrane 120 in resetting, thereby improving the stability of the center of the light-through hole 121 .

[0077] In some other embodiments, such as Fig.12 As shown, the deformation element 130 is disposed around the periphery of the light-through hole 121 to form a ring-shaped closed structure and is connected to the inner edge portion 122. Specifically, as shown in FIG. Fig.13 As shown, the closed-structured deformable element 130 can be installed in the lead groove 1223, and the deformable element 130 passes through the open end 1224 and is electrically connected to the deformable element 130 in the lead groove 1223. The closed-structured deformable element 130 receives an electrical signal and deforms to gather or expand toward the center of the light-through hole, thereby driving the inner edge portion 122 and the connecting portion 124 to deform, thereby changing the aperture of the light-through hole 121.

[0078] Furthermore, the closed-structured deformable element 130 may be a shape memory alloy wire that can be deformed after being powered on, and the first power-connecting element 140a and the second power-connecting element 140b may be made of a material that can only transmit electrical signals, so that when the annular deformable element 130 is deformed, the wire-shaped first power-connecting element 140a and the second power-connecting element 140b can move flexibly with the annular deformable element 130. The deformable element 130 may be arranged in a closed annular shape, so that the enclosed light-through hole 121 is a circular light-through hole.

[0079] In order to prevent the alignment of the first power connection element 140a and the second power connection element 140b from affecting the deformation of the elastic membrane 120, the first power connection element 140a and the second power connection element 140b may be arranged on one side of the connection portion 124. Specifically, the base 110 may have a mounting surface 112 that is perpendicular to the axial direction of the elastic membrane 120, and a portion of the surface of the outer edge portion 123 is connected to the mounting surface 112. The first power connection element 140a and the second power connection element 140b are arranged on a side of the connection portion 124 that faces the mounting opening 111. The connection portion 124 is configured to deform on a side of the mounting surface 112 that is away from the base 110, so as to prevent the deformation of the connection portion 124 from driving the inner edge portion 122 and the deformation element 130 to move into the mounting opening 111 and contact the components in the mounting opening 111. In some other embodiments, the first power connection element 140a and the second power connection element 140b may also be arranged on a side of the connection portion 124 away from the mounting opening 111, and the connection portion 124 is configured to deform on a side of the mounting surface 112 facing the base 110, so as to prevent the connection portion 124 from protruding too much and occupying space when deformed. The specific routing method of the first power connection element 140a and the second power connection element 140b can be set according to actual needs.

[0080] Along the axial direction of the elastic membrane 120, the connecting portion 124 has a first surface 1223a and a second surface 1223b that are oppositely disposed, and the first surface 1223a and the second surface 1223b are both arc-shaped surfaces that are bent in a direction away from the mounting opening 111, so as to improve the tendency of the connecting portion 124 to deform in a direction away from the mounting opening 111, and to improve the deformation stability of the connecting portion 124. In some other embodiments, the first surface 1223a and the second surface 1223b are both arc-shaped surfaces that are bent in a direction toward the mounting opening 111.

[0081] The base 110 has a receiving groove 114 connected to the mounting opening 111, the deformation element 130 and part of the elastic membrane 120 are accommodated in the receiving groove 114, the outer edge portion 123 is connected to the wall of the receiving groove 114, and the mounting surface 112 is arranged in the receiving groove 114. By adjusting the depth of the receiving groove 114 in a direction perpendicular to the mounting surface 112, a deformation space is reserved for the elastic membrane 120 in a direction perpendicular to the mounting surface 112.

[0082] The base 110 further has a wiring groove 113 for the first power connection element 140a and the second power connection element 140b to pass through. The wall surface of the wiring groove 113 is connected to the mounting surface 112. The surfaces of the first power connection element 140a and the second power connection element 140b are in sliding contact with the wall surface of the wiring groove 113. The wiring groove 113 is provided to facilitate smooth wiring of the first power connection element 140a and the second power connection element 140b, and to facilitate guiding the wiring direction of the first power connection element 140a and the second power connection element 140b, so as to prevent the first power connection element 140a and the second power connection element 140b from randomly extending and occupying a large area, so as to prevent the entire aperture assembly 100 from occupying too much space.

[0083] The base 110 also has a mounting groove 115 for mounting the power terminal 160. The mounting groove 115 is configured to make the surface of the power terminal 160 mounted in the mounting groove 115 smoothly transition with the surface of the base 110, so that the aperture assembly 100 has a compact structure. The base 110 also has a connecting channel 116 connecting the mounting groove 115 and the wiring groove 113. The first power connection element 140a and the second power connection element 140b respectively pass through the wiring groove 113 and the connecting channel 116 in sequence to connect with the power terminal 160 mounted in the mounting groove 115. The width and depth of the connecting channel 116 are adjusted to guide the wiring direction of the first power connection element 140a and the second power connection element 140b, thereby improving the stability of the connection between the first power connection element 140a and the second power connection element 140b and the two power terminals 160. The guide column 180 can be installed in the wiring groove 113 and adjacent to the entrance of the connecting channel 116.

[0084] like Fig.14 and 15 As shown, the embodiment of the present application also provides a camera module 200, which includes a photosensitive component, a lens 220 and the aperture component 100 as described above. The photosensitive component has a photosensitive surface, the lens 220 is arranged corresponding to the photosensitive surface, the aperture component 100 is covered on the lens 220, and the light hole 121 is arranged corresponding to the lens 220. The light from the object side passes through the light hole 121, the installation opening 111, and the lens 220 in sequence and then projects to the photosensitive surface of the photosensitive component. By controlling the deformation of the deformation element 130 to drive the elastic film 120 to deform and change the aperture of the light hole 121, the amount of light entering through the lens 220 can be effectively changed, thereby changing the imaging quality of the camera module 200. The deformation of the deformation element 130 is a continuous deformation after being powered on, which drives the aperture of the light hole 121 to change continuously, so that the camera module 200 of the present application can adjust the amount of light entering more accurately and flexibly.

[0085] Specifically, the photosensitive component may include a circuit board 212, a photosensitive element installed on the circuit board 212 and electrically connected to the wire circuit of the circuit board 212, and a driving motor 214. The photosensitive surface is located on the surface of the photosensitive element. One end of the driving motor 214 can be connected to the circuit board 212 through a bracket 215. The lens 220 is accommodated in the driving motor 214 and connected to the driving motor 214. The distance of the lens 220 relative to the photosensitive surface is adjusted by the driving motor; the other end of the driving motor 214 is connected to the surface of the base 110 away from the elastic membrane 120. The lens 220 can be located on a side of the base 110 away from the elastic membrane 120, and the end of the lens 220 can also be partially accommodated in the installation opening 111. The distance between the lens 220 and the elastic membrane 120 can be adjusted according to actual installation requirements.

[0086] The embodiment of the present application also provides an electronic device, which can be an electronic device with a camera function, such as a mobile phone, a tablet computer, a camera, a vehicle-mounted device, an aircraft device, a detection device, etc. The electronic device includes a housing and the camera module 200 as described above, and the user can perform camera and video operations through the camera module 200 in the electronic device. By installing the camera module 200 as described above, the electronic device can also have the characteristics of variable aperture and easy adjustment of the amount of light entering, thereby obtaining good imaging quality and improving the user experience.

[0087] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0088] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An aperture assembly, characterized in that: include: A base having a mounting opening, a first power connection port, and a second power connection port; an elastic membrane, installed corresponding to the installation opening, and the elastic membrane is an annular structure with a light-through hole, the elastic membrane comprising an inner edge portion surrounding the light-through hole, an outer edge portion connected to a portion of the base adjacent to the installation opening, and a connecting portion connecting the inner edge portion and the outer edge portion; A deformation element, comprising a first deformation segment and two second deformation segments respectively connected to two ends of the first deformation segment, wherein at least a portion of the first deformation segment is disposed around the periphery of the light-through hole, and the deformation element is connected to a wall surface of the inner edge portion away from the center of the light-through hole; A first power connection element, extending from the first power connection port to be electrically connected to one of the second deformation segments of the deformation element; and a second power connection element, which is connected from the second power connection port to another second deformable segment of the deformable element and is electrically connected thereto; the first power connection element and the second power connection element are both used to receive an electrical signal and transmit the electrical signal to the deformable element, so that the deformable element is deformed, thereby driving the inner edge portion to be deformed to change the aperture of the light-through hole; The base is provided with two guide posts corresponding to the first power connection element and the second power connection element respectively, and the surfaces of the two guide posts are in contact with the surfaces of the first power connection element and the second power connection element respectively to limit the moving directions of the first power connection element and the second power connection element when the deformable element is deformed.

2. The aperture assembly according to claim 1, characterized in that: The first deformable segment surrounds the periphery of the light-through hole, and the two second deformable segments are electrically connected to the first power-connecting element and the second power-connecting element respectively after intersecting; or, The first deformable segment is partially disposed around the periphery of the light-through hole, and the two second deformable segments are electrically connected to the first power-connecting element and the second power-connecting element respectively, and the first power-connecting element and the second power-connecting element intersect; or, The first deformation section is partially disposed around the periphery of the light-through hole, and the two second deformation sections are electrically connected to the first power connection element and the second power connection element respectively, and the first power connection element and the second power connection element are disposed at intervals.

3. The aperture assembly according to claim 2, characterized in that: There are multiple deformation elements, and the two second deformation segments in each deformation element constitute a group of second deformation segments. Along the circumference of the light-through hole, multiple groups of second deformation segments are evenly distributed, and the circumference of the first deformation segments of each deformation element arranged around the periphery of the light-through hole are equal, so as to constrain the inner edge to form the light-through hole.

4. The aperture assembly according to claim 2, characterized in that: The aperture assembly also includes an elastic return member corresponding to the deformation element, and the elastic return member is configured to be able to extend and retract toward the center of the light-transmitting hole. The elastic return member includes a first end and a second end arranged opposite to each other along its extension direction, the first end is connected to the outer edge portion or the base, and the second end is connected to the inner edge portion between the two second deformation segments, and the distances from the connecting ends of the second end and the inner edge portion to the two second deformation segments are equal, or the second end is connected to the inner edge portion connecting the two second deformation segments.

5. The aperture assembly according to claim 2, characterized in that: The first power connection element and the second power connection element are both configured to deform after receiving an electrical signal, and the material of the first power connection element and the second power connection element is the same as that of the first deformation segment and the two second deformation segments and are integrally provided.

6. The aperture assembly according to claim 1, characterized in that: The deformable element is disposed around the periphery of the light-through hole to form a closed structure and is connected to the inner edge portion. The first electrical connection element and the second electrical connection element are electrically connected to the deformable element of the closed structure respectively.

7. The aperture assembly according to claim 1, characterized in that: The aperture assembly further includes two power terminals disposed at the first power port and the second power port, and the two power terminals are respectively connected to the first power element and the second power element to transmit electrical signals to the deformation element.

8. The aperture assembly according to claim 1, characterized in that: The inner edge portion has a lead wire channel arranged around the light-through hole and a position-avoiding opening communicating with the lead wire channel, the deformable element arranged around the periphery of the light-through hole is installed in the lead wire channel, and the deformable element is electrically connected to the first power connection element and the second power connection element at or near the position-avoiding opening; Alternatively, the inner edge portion has a lead groove arranged around the light-through hole, the lead groove has an open end, the open end is arranged away from the center of the light-through hole, the deformable element is accommodated in the lead groove, and the deformable element is electrically connected to the first power connection element and the second power connection element at the open end or adjacent to the open end.

9. The aperture assembly according to claim 1, characterized in that: The first power connection element and the second power connection element are arranged on a side of the connecting portion facing the installation opening; or the first power connection element and the second power connection element are arranged on a side of the connecting portion away from the installation opening.

10. The aperture assembly according to claim 1, characterized in that: The aperture assembly further comprises an annular support member coaxially arranged with the elastic membrane, wherein the annular support member is connected to the outer edge portion, and a surface of the outer edge portion is connected to a wall surface of the base.

11. The aperture assembly according to claim 1, characterized in that: Along the axial direction of the elastic membrane, the connecting portion has a first surface and a second surface arranged opposite to each other, and the first surface and the second surface are both arc-shaped surfaces bent away from the installation opening, or the first surface and the second surface are both arc-shaped surfaces bent toward the installation opening.

12. The aperture assembly according to claim 1, characterized in that: The base has a receiving groove communicated with the installation opening, the deformation element and a part of the elastic membrane are received in the receiving groove, and the outer edge portion is connected to the wall surface of the receiving groove.

13. The aperture assembly according to claim 1, characterized in that: The deformation element is a shape memory alloy wire that can be deformed after being powered on, and the deformation element is insulated and connected to the elastic film.

14. A camera module, characterized in that: include: A photosensitive component, wherein the photosensitive component has a photosensitive surface; A lens, arranged corresponding to the photosensitive surface; and The aperture assembly as described in any one of claims 1 to 13, wherein the aperture assembly cover is disposed on the lens, and the light through hole is disposed corresponding to the lens.

15. An electronic device, characterized in that: include: The camera module as described in claim 14 above; and A shell, wherein the camera module is installed in the shell.

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