Aperture adjusting device

Abstract

The utility model discloses an aperture adjusting device, which comprises a base, a carrier, a rubber ring and a ring wire, and the base is provided with a light shielding hole. The rubber ring is connected with the base, the rubber ring is annular and is provided with an aperture hole, and the aperture hole is aligned with the avoiding light; and the carrier is propped against the rubber ring. At least one part of the ring wire is made of a memory alloy wire and is sleeved outside the carrier, the ring wire is respectively connected with the carrier and the base, and the ring wire can drive the carrier to move along the vertical direction after being electrified and can be operated to change the size of the aperture hole through the movement of the carrier. According to the aperture adjusting device, the size of the aperture hole is adjusted through the rubber ring, the structure is compact and light, the space is saved, the cost can be reduced, and the market competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to an aperture adjustment device. Background Art

[0002] As for the camera aperture, in places with strong light, the camera can obtain a deeper depth of field and a sharper picture by reducing the aperture, and in places with insufficient light, the amount of light entering can be increased by increasing the aperture, so that a pure picture with higher exposure and lower noise can be obtained. In the field of electronic equipment, the camera of general electronic equipment cannot change the aperture size, so it is impossible to adapt to various shooting environments by changing the aperture. This has caused many electronic devices to be overexposed outdoors in strong sunlight, and underexposed at night, resulting in dark pictures with high noise and loss of details. In order to meet the user's photography needs, a physical variable aperture is very important for shooting.

[0003] The aperture adjustment device in the prior art is relatively large in shape and cannot meet the market demand. In view of this, people in this field need to develop a new type of variable aperture to overcome the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide an aperture adjustment device to solve the problems of the prior art.

[0005] In order to solve the above technical problems, the embodiment of the utility model provides an aperture adjustment device, comprising:

[0006] A base, wherein the base has a light-proof hole;

[0007] A rubber ring, the rubber ring is connected to the base, the rubber ring is ring-shaped and has an aperture hole, and the aperture hole is aligned with the light-shielding hole;

[0008] a carrier, the carrier abutting against the rubber ring; and

[0009] A ring wire, at least a portion of which is made of memory alloy wire and is sleeved on the outside of the carrier, the ring wire is respectively connected to the carrier and the base, and the ring wire can drive the carrier to move in a vertical direction after being energized, and can be operated to change the size of the aperture hole through the movement of the carrier.

[0010] In one embodiment, the loop wire is formed by at least two sections of spring wire and at least two sections of memory alloy wire arranged alternately and connected end to end; the spring wire is connected to the base, and the memory alloy wire is connected to the carrier.

[0011] In one embodiment, the ring wire is formed by two sections of the spring wire and two sections of the ring wire, and both ends of the spring wire are respectively provided with extension sections extending upward, and the top ends of the extension sections are connected to the memory alloy wire.

[0012] In one embodiment, the base includes a bottom plate, the bottom plate is annular and has a built-in circuit, and the spring wire is connected to the top surface of the bottom plate and is electrically connected to the built-in circuit.

[0013] In one embodiment, a connecting protrusion is provided on the radial outer side of the carrier, and the memory alloy wire is connected to the connecting protrusion.

[0014] In one embodiment, the rubber ring includes, radially from outside to inside:

[0015] A fixing portion, wherein the fixing portion is a radial outer edge of the rubber ring;

[0016] a movable portion, the movable portion abutting against the carrier; and

[0017] A deformation portion, wherein the aperture hole is provided at the center of the deformation portion;

[0018] The base also includes:

[0019] Base plate;

[0020] A connecting portion, the connecting portion being connected to the top surface of the bottom plate and extending along the circumference of the bottom plate, the connecting portion being connected to the fixing portion;

[0021] A supporting portion, wherein the bottom end of the supporting portion is connected to the top surface of the bottom plate, and the top end of the supporting portion extends to the bottom surface of the deformation portion to form the light-shielding hole.

[0022] In one embodiment, the supporting portion includes a first shoulder and a second shoulder, the first shoulder and the second shoulder are both in the shape of annular steps and the bottom end of the first shoulder is connected to the base plate; the bottom end of the second shoulder is connected to the top end of the first shoulder, and the top end extends to the top surface of the deformation portion and forms the light-shielding hole.

[0023] In one embodiment, a projection of the second shoulder and a projection of the movable portion are staggered.

[0024] In one embodiment, the top surface of the movable portion is provided with a recessed area;

[0025] The bottom of the carrier is provided with an abutting protrusion abutting against the bottom wall of the recessed area.

[0026] In one embodiment, the deformed portion is in a completely arched shape and a thickness of the deformed portion is smaller than a thickness of the movable portion.

[0027] The aperture adjustment device of the present invention adjusts the aperture hole size through a rubber ring, which is not only compact in structure, lightweight and space-saving, but also can reduce costs and improve market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 and Figure 2 It is an exploded view of the aperture adjustment device of the fourth embodiment of the utility model.

[0029] Figure 3 yes Figure 1 An assembly diagram of the base, carrier, rubber ring and loop wire in the illustrated embodiment.

[0030] Figure 4 yes Figure 1 An assembly diagram of the base and the rubber ring in the illustrated embodiment.

[0031] Figure 5 yes Figure 1 A three-dimensional view of the base, the rubber ring and the carrier in the illustrated embodiment.

[0032] Figure 6 yes Figure 1 Assembly diagram of the aperture adjustment device in the illustrated embodiment.

[0033] Figure 7 yes Figure 6 A cross-sectional view along line AA in the illustrated embodiment.

[0034] Reference numerals: 100, aperture adjustment device; 1, base; 11, bottom plate; 12, connecting portion; 13, supporting portion; 14, first shoulder; 15, second shoulder; 16, light-shielding hole; 2, rubber ring; 21, aperture hole; 22, fixing portion; 221, fixing groove; 23, movable portion; 231, recessed area; 24, deformation portion; 3, carrier; 31, connecting protrusion; 32, abutting protrusion; 4, ring wire; 41, memory alloy wire; 42, spring wire; DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0036] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, ie, should be interpreted as "including, but not limited to."

[0037] The following will be combined with the accompanying drawings to describe the various embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0038] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0039] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0040] In the following description, in order to clearly demonstrate the structure and working mode of the utility model, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0041] The utility model relates to an aperture adjustment device 100, which can be used to adjust the aperture size of a lens.

[0042] Specifically, Figure 1-2 As shown, the aperture adjustment device includes a base 1 , a rubber ring 2 , a carrier 3 and a ring wire 4 , wherein the base 1 has a light-shielding hole 16 for avoiding light entering the lens of the carrier 3 .

[0043] exist Figure 1 and Figure 2 In the embodiment shown, the base 1 includes a bottom plate 11, a connecting portion 12, a supporting portion 13 and a built-in circuit, wherein the bottom plate 11 is in the shape of a circular ring. It should be understood that in other embodiments, the bottom plate 11 may also be in other shapes.

[0044] The connecting portion 12 is annular and connected to the top surface of the bottom plate 11. The connecting portion 12 protrudes from the top surface of the bottom plate 11 and is close to the outer edge of the bottom plate 11 and is in a stepped shape. The inner ring of the connecting portion 12 along the radial direction is a protruding connecting ring. The height of the outer ring is lower than the height of the inner ring, and the outer ring and the inner ring form a stepped shape.

[0045] The support portion 13 is connected to the top surface of the bottom plate 11 and is closer to the radial inner side of the bottom plate 11 than the connection portion 12. The support portion 13 is arched as a whole and its bottom end is connected to the bottom plate 11. Its top end is located above the bottom plate 11 and extends toward the radial inner side. Figure 1 and Figure 7 In the illustrated embodiment, the support portion 13 includes a first shoulder 14 and a second shoulder 15. The first shoulder 14 and the second shoulder 15 are both in the shape of annular steps and the bottom end of the first shoulder 14 is connected to the bottom plate 11, the bottom end of the second shoulder 15 is connected to the top end of the first shoulder 14, the top end of the second shoulder 15 extends toward the top and forms a light-shielding hole 16, and the second shoulder 15 is used to support the rubber ring 2.

[0046] The supporting portion 13 and the connecting portion 12 are spaced apart, and the spacing between them can at least ensure that the rubber ring 2 has enough space to move downward.

[0047] The carrier 3 is annular and is used to install a lens. The lens of the carrier 3 and the light-shielding hole 16 are aligned in the vertical direction. The optical axis direction of the lens is also in the vertical direction. Light can enter the lens of the carrier 3 from the light-shielding hole 16.

[0048] The rubber ring 2 is made of silicone or rubber and has a certain elasticity. The rubber ring 2 is annular and has an aperture hole 21 at its center. The aperture hole 21 and the light-shielding hole 16 are aligned in the vertical direction for adjusting the size of the aperture.

[0049] exist Figure 2 and Figure 5 In the illustrated embodiment, the rubber ring 2 includes a fixed portion 22, a movable portion 23 and a deformable portion 24 in sequence from the outside to the inside in the radial direction, wherein the fixed portion 22 is the radial outer edge portion of the rubber ring 2, and is used to connect with the connecting portion 12. The movable portion 23 is located in the middle portion, and the deformable portion 24 is located in the inner circle of the rubber ring 2, and the middle of the deformable portion 24 is an aperture hole 21.

[0050] The fixing portion 22 is used to be fixedly connected to the connecting portion 12 of the base 1. Figure 7 In the illustrated embodiment, a fixing groove 221 is provided on the bottom surface of the fixing portion 22, and the fixing groove 221 is recessed from the bottom surface of the fixing portion 22 and extends along the circumference of the fixing portion 22. The top surface of the connecting ring of the connecting portion is stuck in the fixing groove 221, and the radial outer edge of the fixing portion 22 is located at the outer ring of the connecting portion 12 and matches the outer ring of the connecting portion 12, that is, the bottom surface of the radial outer edge of the fixing portion 22 abuts against the top surface of the outer ring of the connecting portion 12. Of course, in other embodiments, the fixing portion 22 can also be connected to the connecting portion 12 of the base 1 by bonding or other methods, and the specific connection method of the rubber ring 2 and the base 1 is not limited.

[0051] The movable portion 23 is radially located between the fixed portion 22 and the deformable portion 24. The radial outer edge of the movable portion 23 is connected to the top wall of the fixed groove 22 of the fixed portion 22. The top wall of the fixed groove 22 is relatively thin, which facilitates the movement of the movable portion 23. The radial inner edge of the movable portion 23 is connected to the deformable portion 24. The top surface of the movable portion 23 is basically flush with the fixed portion 22, but it may not be flush. The carrier 3 abuts against the top surface of the movable portion 23. When the carrier 3 moves downward in the vertical direction, the movable portion 23 can move downward and squeeze the movable portion 23, so that the movable portion 23 drives the deformable portion 24 to deform, thereby causing the aperture 21 of the deformable portion 24 to increase. When the carrier 3 moves upward, the movable portion 23 moves upward, and the deformable portion 24 can gradually return to its original state, at which time the aperture 21 is the smallest.

[0052] As a preferred embodiment, a recessed area 231 is provided on the top surface of the movable part 23, and the recessed area 231 extends along the circumference of the movable part 23; and a contact protrusion 32 is provided on the bottom of the carrier 3 for contacting the bottom wall of the recessed area 231, and the contact protrusion 32 protrudes from the bottom surface of the carrier 3. When the carrier 3 moves in the vertical direction, the contact protrusion 32 can drive the movable part 23 to move downward, thereby driving the deformation part 24 to deform and adjust the aperture size.

[0053] The deformation portion 24 is generally in the shape of an arch convex upward, and the radial outer edge of the deformation portion 24 is connected to the movable portion 23. The bottom surface of the deformation portion 24 is located on the top surface of the second shoulder 15 of the support portion 13, that is, the second shoulder 15 can support the deformation portion 24. The center of the deformation portion 24 is the aperture hole 21, and the aperture hole 21 is aligned with the light-shielding hole 16. When the radial outer edge of the deformation portion 24 is pulled downward by the movable portion 23 and moves radially outward, the outer edge of the deformation portion 24 moves downward and makes the deformation portion 24 fit the second shoulder 15, and the aperture hole 21 of the deformation portion 24 is enlarged. It should be understood that the deformation portion 24 can also be a disc or other shapes.

[0054] The carrier 3 is defined to be movable between a first position and a second position. In the first position, the rubber ring 2 is in a natural state, and the abutting protrusion 32 of the carrier 3 abuts against the bottom wall of the recessed area 231. At this time, the top surface of the recessed area 231 and the top surface of the fixed portion 22 are basically flush, the deformation portion 24 and the movable portion 23 are both in a natural state, and the inner edge of the deformation portion 23 abuts against the second shoulder 15, and the outer edge and the first shoulder 14 are spaced apart. When the carrier 3 moves downward to the second position, the recessed area 231 is squeezed by the abutting protrusion 32 to move downward, and the deformation portion 23 is squeezed by the abutting protrusion 32 to the radial inner wall of the connecting portion 12, so that the thickness of the deformation portion 23 becomes thinner, and then the height of the recessed area 231 is made smaller than the height of the fixed portion 22, that is, the height of the recessed area 231 in the first position is greater than the height of the recessed area 231 in the second position. At this time, the deformation portion 24 is pulled and deformed radially outward by the movable portion 23, the outer edge of the deformation portion 24 abuts against the first shoulder 14, and the inner edge abuts against the second shoulder 15, the aperture hole 21 becomes larger, and the diameter of the aperture hole 21 in the second position is greater than the diameter in the first position.

[0055] In addition, as a preferred solution, the movable portion 23 has a certain thickness in a natural state, so that the movable portion 23 has a thinning space after being squeezed. The thickness of the deformable portion 24 is smaller than that of the movable portion 23, so that the deformable portion 24 can be pulled and deformed.

[0056] The ring wire 4 is ring-shaped and at least a part of it is made of a memory alloy wire 41, which can shrink after being energized. The ring wire 4 is sleeved outside the carrier 3 and connected to the carrier 3 and the base 1 respectively. After being energized, the ring wire 4 shrinks to make the carrier 3 move downward, that is, to make the carrier 3 closer to the bottom plate 11, thereby changing the size of the aperture hole 21.

[0057] In one embodiment, the loop wire 4 can be formed by arranging multiple sections of spring wire 42 and multiple sections of memory alloy wire 41 in a colloidal manner and connecting end to end. The multiple sections of spring wire 42 are elastic and can increase the range of motion of the carrier 3 in the vertical direction. Figure 1-3 In the illustrated embodiment, two sections of spring wire 42 and two sections of memory alloy wire 41 are alternately arranged and connected end to end to form a ring wire 4, and both ends of the spring wire 42 are respectively provided with extension sections extending upward, and the top ends of the extension sections are respectively connected to the memory alloy wire 41, that is, the memory alloy wire 41 and the spring wire 42 are not in the same horizontal plane, the spring wire 42 is in contact with the top surface of the bottom plate 11, and the memory alloy wire 41 and the bottom plate 11 are spaced apart.

[0058] The ring wire 4 is sleeved on the radial outer side of the carrier 3 . The radial outer side of the carrier 3 is provided with two connecting protrusions 31 . Two sections of memory alloy wires 41 are connected to the two connecting protrusions 31 .

[0059] It should be understood that in other embodiments, only one section of spring wire 42 and one section of memory alloy wire 41 may be connected end to end to form the ring wire 4 , or more sections of spring wire 42 and memory alloy wire 41 may be provided to form the ring wire 4 .

[0060] In addition, a built-in circuit is also provided inside the base 1, and the spring wire 42 is directly located on the top surface of the bottom plate 11 and at the outer edge of the bottom plate 11, and the spring wire 42 is connected to the bottom plate 11. In addition, the spring wire 42 is also electrically connected to the built-in circuit of the base 1. After the spring wire 42 is energized, the memory alloy wire 41 can shrink and deform, thereby driving the carrier 3 to move in the vertical direction toward the bottom plate 11, thereby driving the aperture hole 21 of the rubber ring 2 to become larger. After the power is turned off, the memory alloy wire 41 returns to its original state, and the carrier 3 and the rubber ring 2 are both reset.

[0061] The aperture adjustment device of the utility model adjusts the size of the aperture hole 21 through the rubber ring 2, which is not only compact in structure, light and space-saving, but also can reduce costs and improve market competitiveness.

[0062] Preferred embodiments of the present invention have been described in detail above, but it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.

[0063] These and other changes can be made to the embodiments in light of the above detailed description.In general, in the claims, the terms used should not be considered limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.

[0064] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. An aperture adjustment device, characterized in that: include: A base, wherein the base has a light-proof hole; A rubber ring, the rubber ring is connected to the base, the rubber ring is ring-shaped and has an aperture hole, and the aperture hole is aligned with the light-shielding hole; A carrier, the carrier abutting against the rubber ring; as well as A ring wire, at least a portion of which is made of memory alloy wire and is sleeved on the outside of the carrier, the ring wire is respectively connected to the carrier and the base, and the ring wire can drive the carrier to move in a vertical direction after being energized, and can be operated to change the size of the aperture hole through the movement of the carrier.

2. The aperture adjustment device according to claim 1, characterized in that: The loop wire is formed by at least two sections of spring wire and at least two sections of memory alloy wire arranged alternately and connected end to end; the spring wire is connected to the base, and the memory alloy wire is connected to the carrier.

3. The aperture adjustment device according to claim 2, characterized in that: The ring wire is formed by two sections of the spring wire and two sections of the ring wire, and both ends of the spring wire are respectively provided with extension sections extending upward, and the top ends of the extension sections are connected to the memory alloy wire.

4. The aperture adjustment device according to claim 3, characterized in that: The base comprises a bottom plate, the bottom plate is annular and provided with a built-in circuit, and the spring wire is connected to the top surface of the bottom plate and is electrically connected to the built-in circuit.

5. The aperture adjustment device according to claim 1, characterized in that: A connecting protrusion is provided on the radial outer side of the carrier, and the memory alloy wire is connected to the connecting protrusion.

6. The aperture adjustment device according to claim 3, characterized in that: The rubber ring includes, radially from outside to inside: A fixing portion, wherein the fixing portion is a radial outer edge of the rubber ring; a movable portion, the movable portion abutting against the carrier; and A deformation portion, wherein the aperture hole is provided at the center of the deformation portion; The base also includes: Base plate; A connecting portion, the connecting portion being connected to the top surface of the bottom plate and extending along the circumference of the bottom plate, the connecting portion being connected to the fixing portion; A supporting portion, wherein the bottom end of the supporting portion is connected to the top surface of the bottom plate, and the top end of the supporting portion extends to the bottom surface of the deformation portion to form the light-shielding hole.

7. The aperture adjustment device according to claim 6, characterized in that: The supporting portion includes a first shoulder and a second shoulder, the first shoulder and the second shoulder are both in the shape of annular steps and the bottom end of the first shoulder is connected to the bottom plate; the bottom end of the second shoulder is connected to the top end of the first shoulder, and the top end extends to the top surface of the deformation portion and forms the light-shielding hole.

8. The aperture adjustment device according to claim 7, characterized in that: The projection of the second shoulder and the projection of the movable portion are staggered.

9. The aperture adjustment device according to claim 6, characterized in that: The top surface of the movable part is provided with a recessed area; The bottom of the carrier is provided with an abutting protrusion abutting against the bottom wall of the recessed area.

10. The aperture adjustment device according to claim 6, characterized in that: The deformation portion is in a completely arched shape and the thickness of the deformation portion is smaller than the thickness of the movable portion.

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