Damping device and electronic device

Abstract

This application provides a damping device and an electronic device. The damping device includes a first movable component and a base. The first movable component includes a first damping portion, the cross-section of which includes a first arc edge. The base includes a first gel and is disposed corresponding to the first movable component. One end of the first damping portion is inserted into the first gel. The first movable component is configured to drive the first damping portion to move radially relative to the first gel, with the first arc edge facing the direction of movement of the first damping portion. This application solves the problem that damping pins are difficult to maintain adhesion with the gel.

Description

[0001] This application is a divisional application. The original application was filed on March 6, 2023, with application number 2023102041791 and titled "Damping Device and Electronic Equipment". Technical Field

[0002] This application relates to dampers, and more particularly to damping devices and electronic equipment. Background Technology

[0003] When a miniature motion mechanism (such as a voice coil motor) is subjected to external excitation or disturbance (such as vibration) during operation, it may produce unnecessary motion. To reduce the impact of external disturbances on the miniature motion mechanism, a damper can be installed in the miniature motion mechanism to reduce its frequency response to external disturbances.

[0004] For example, a damper can consist of a damping pin and a gel, allowing the damping pin to slide within the gel while maintaining adhesion to it, thereby reducing the frequency response of the micro-motion mechanism to external disturbances. However, existing damping pins have a square cross-section with sharp edges. These sharp edges can damage the gel during sliding, reducing the adhesion between the gel and the damping pin, making it difficult to maintain adhesion. Therefore, existing damping pins suffer from the problem of difficulty in maintaining adhesion with the gel. Summary of the Invention

[0005] The purpose of one embodiment of this application is to provide a damping device that allows a damping pin and a gel to easily maintain adhesion, applicable to a voice coil motor. The damping device includes a first movable component and a base. The first movable component includes a first damping portion, the cross-section of which includes a first arcuate edge. The base includes a first gel, the base being disposed corresponding to the first movable component. One end of the first damping portion is inserted into the first gel. The first movable component is configured to drive the first damping portion to move radially relative to the first gel. The first arcuate edge abuts against the first gel, and the first arcuate edge faces the direction of movement of the first damping portion.

[0006] In some implementations, the first movable component further includes a movable body and a first fixed frame, wherein the movable body and the first fixed frame are connected, and the first fixed frame is connected to the first damping part.

[0007] In some implementations, the first fixing frame includes a trapezoidal plate and a first straight rod, the first straight rod being perpendicular to the upper bottom edge of the trapezoidal plate and located at the midpoint of the upper bottom edge of the trapezoidal plate, and the first straight rod and the first damping part being arranged perpendicularly.

[0008] In some implementations, the cross-section of the first damping portion further includes a first straight edge, which is connected to the first arc edge.

[0009] In some implementations, the number of first straight edges is four, the number of first arc edges is four, and the four first straight edges and the four first arc edges are alternately connected to form the cross-section of the first damping part.

[0010] In some implementations, the cross-section of the first damping portion is defined by a first inscribed circle, the circumference of which is smaller than the circumference of the cross-section of the first damping portion, and the first inscribed circle is tangent to the four first straight sides.

[0011] In some implementations, the first damping portion further includes an arc-shaped end located at the axial end of the first damping portion and inserted into the first gel, the arc-shaped end facing the axial direction of the first damping portion.

[0012] In some implementations, the damping device further includes a frame and a second movable component. The frame includes a second damping portion, the cross-section of which includes a second arcuate edge. The second movable component includes a second gel, disposed corresponding to the frame, with one end of the second damping portion inserted into the second gel. The second movable component is configured to drive the second gel to move relative to the second damping portion along the axial direction of the second damping portion, with the second arcuate edge facing the direction of movement of the first damping portion.

[0013] In some implementations, the cross-section of the second damping portion further includes a second straight edge, which is connected to the second arc edge.

[0014] In some implementations, the number of second straight edges is four, and the number of second arc edges is four. The four second straight edges and the four second arc edges are alternately connected to form the cross-section of the second damping part.

[0015] In some implementations, the cross-section of the second damping portion is defined by a second inscribed circle, the circumference of which is smaller than the circumference of the cross-section of the second damping portion, and the second inscribed circle is tangent to the four second straight edges.

[0016] In some implementations, the frame further includes a frame body and a second fixing frame, the frame body being sleeved on the second movable component, the frame body being connected to the second fixing frame, and the second fixing frame being connected to the other end of the second damping part.

[0017] In some implementations, there are two second damping parts, with a space between the two second damping parts placed on the second fixing frame.

[0018] In some implementations, there are two second fixing brackets, which are respectively disposed on two sides of the frame body.

[0019] An embodiment of this application also provides an electronic device that includes the aforementioned damping device.

[0020] The beneficial effect of one embodiment of this application is that: a first damping part is provided in the first movable component, and a first arc edge is provided in the cross-section of the first damping part. A first gel is provided in the base, with the base corresponding to the first movable component. One end of the first damping part is inserted into the first gel, and the first movable component is configured to drive the first damping part to move radially relative to the first gel. The first arc edge (viewed from the cross-section of the first damping part, the first arc edge is arc-shaped; viewed from the overall first damping part, the first arc edge forms an arc surface) faces the direction of movement of the first damping part. Therefore, when the first damping part moves in the first gel, since the first arc edge has no sharp edges, it will not damage the first gel when it abuts against it, thereby allowing the first damping part and the first gel to easily maintain an adhesive state.

[0021] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the following describes the application in detail with reference to the preferred embodiments and accompanying drawings. Attached Figure Description

[0022] Figure 1 This is an exploded view of the damping device in one embodiment of this application;

[0023] Figure 2 In one embodiment of this application, Figure 1 A magnified view from direction A;

[0024] Figure 3 In one embodiment of this application, Figure 1 A partial cross-sectional view of the BB line (only the first damping part is cut, and the cutting direction of the BB line is radial to the first damping part).

[0025] Figure 4 This is a partial cross-sectional view of the first fixing frame, the first damping part, and the first gel in one embodiment of this application (only the first gel is cut out).

[0026] Figure 5 This is a perspective view of the first movable component in one embodiment of this application;

[0027] Figure 6 This is a cross-sectional view of the damping device in one embodiment of this application;

[0028] Figure 7This is an exploded view of the first movable component and the base in one embodiment of this application;

[0029] Figure 8 This is an exploded view of the second movable component and the frame in one embodiment of this application;

[0030] Figure 9 In one embodiment of this application, Figure 8 A partial cross-sectional view of the CC line (only the second damping part is cut, and the cutting direction of the CC line is radial to the second damping part).

[0031] Figure 10 This is a block diagram of an electronic device in another embodiment of this application.

[0032] In the attached figures, the following labels are used:

[0033] 1 Damping device

[0034] 2 First moving part

[0035] 20 First Damping Section

[0036] 200 First arc edge

[0037] 201 First Inscribed Circle

[0038] 202 First straight edge

[0039] 203 Arc end

[0040] 21 tablet

[0041] 210 45° right angle

[0042] 22 convex platform

[0043] 23 Activity Body

[0044] 24 First Fixture

[0045] 240 trapezoidal plate

[0046] 241 First straight rod

[0047] 3. Base

[0048] 30 First Gel

[0049] 31 Square through hole

[0050] 32 First damping groove

[0051] 4 Framework

[0052] 40 Second Damping Section

[0053] 400 Second arc edge

[0054] 401 Second Inscribed Circle

[0055] 402 Second straight edge

[0056] 41. Framework Ontology

[0057] 410 polygonal through hole

[0058] 42 Second fixing frame

[0059] 420 square board

[0060] 421 Second Straight Rod

[0061] 5 Second moving parts

[0062] 50 Second Gel

[0063] 51 Second Damping Groove

[0064] 6. Shell

[0065] 7 electronic devices Detailed Implementation

[0066] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0067] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present application will now be described in detail with reference to the accompanying drawings and embodiments. To enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0068] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0069] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0070] Please also refer to Figure 1 and Figure 2 In one embodiment, a damping device 1 for a voice coil motor (VCM) is provided, comprising: a first movable component 2 and a base 3. The first movable component 2 includes a first damping portion 20, the cross-section of which includes a first arcuate edge 200. The base 3 includes a first gel 30, and the base 3 is disposed corresponding to the first movable component 2. One end of the first damping portion 20 is inserted into the first gel 30. The first movable component 2 is configured to drive the first damping portion 20 to move radially relative to the first gel 30, with the first arcuate edge 200 facing the direction of movement of the first damping portion 20.

[0071] For ease of explanation, a spatial rectangular coordinate system O-xyz can be set on the base 3, with the origin of the rectangular coordinate system located at the center of the base 3, the X-axis of the rectangular coordinate system parallel to the smaller side of the base 3, the Y-axis of the rectangular coordinate system parallel to the larger side of the base 3, and the Z-axis of the rectangular coordinate system perpendicular to the top and bottom surfaces of the base 3.

[0072] like Figure 3 As shown, in some implementations, the cross-section of the first damping portion 20 is defined by a first inscribed circle 201 (the first inscribed circle 201 is in...). Figure 3 (Represented by a circle formed by a dashed line in the image), the circumference of the first inscribed circle 201 is less than the circumference of the cross-section of the first damping part 20. The first inscribed circle 201 can be the circle with the largest area that can be formed by rounding the cross-section of the first damping part 20. Having a circumference of the first inscribed circle 201 smaller than the circumference of the cross-section of the first damping part 20 avoids excessive rounding of the first damping part 20, i.e., avoids the circumference of the first inscribed circle 201 being equal to or greater than the circumference of the cross-section of the first damping part 20. Because if the circumference of the first inscribed circle 201 is equal to or greater than the circumference of the cross-section of the first damping part 20, then although the sharp edges of the first damping part 20 have been removed by rounding, preventing the first damping part 20 from damaging the first gel 30 (see reference for the first gel 30),... Figure 2(The same applies below), but at the same time, it will also cause the cross-sectional perimeter of the first damping part 20 to be too small (if the cross-sectional perimeter of the first damping part 20 is too small, from the perspective of the first damping part 20 as a whole, it will cause the side surface area of ​​the first damping part 20 to be too small, that is, it will cause the side area of ​​the first damping part 20 used to abut against the first gel 30 to be too small), which will reduce the resistance force generated by the first damping part 20 in the first gel 30, and make the first movable part 2 (please refer to the first movable part 2) Figure 1 It is necessary to use other elastic elements (such as those connected to a spring) to increase the resistance to meet the requirements. This will make damping device 1 (see damping device 1 for reference) Figure 1 The structure of ) is more complex.

[0073] like Figure 3 As shown, in some embodiments, the cross-section of the first damping portion 20 further includes a first straight edge 202, which is connected to a first arcuate edge 200. The first arcuate edge 200 may face a direction parallel to the X-axis or Y-axis. The first arcuate edge 200 may protrude outward, for example, in a direction parallel to the X-axis or Y-axis. There are four first straight edges 202 and four first arcuate edges 200, which are alternately connected to form the cross-section of the first damping portion 20. Viewed from the cross-section of the first damping portion 20, the first straight edge 202 is a line segment; viewed from the first damping portion 20 as a whole, the first straight edge 202 forms a plane. For example, two of the four first straight edges 202 may be parallel to each other, and the remaining two of the four first straight edges 202 may also be parallel to each other. The four first arcuate edges 200 may have the same length, and both ends of each first arcuate edge 200 may be connected to a first straight edge 202. The first inscribed circle 201 can be tangent to all four first straight edges 202 simultaneously. The center of the first inscribed circle 201 can coincide with the center of the cross-section of the first damping part 20.

[0074] like Figure 4 As shown, the first damping part 20 also includes an arc-shaped end 203, which is located at the axial end of the first damping part 20 and inserted into the first gel 30, with the arc-shaped end 203 facing the axial direction of the first damping part 20. For example, the arc-shaped end 203 can be located at the bottom end of the first damping part 20 and protrude downward in the shape of a hemispherical arc surface. Compared to the first damping part 20 not having an arc surface at its end, this can prevent the sharp edges of the end of the first damping part 20 from cutting the first gel 30 when the first damping part 20 moves.

[0075] like Figure 5As shown, the first movable component 2 may include a flat plate 21 and a boss 22. The boss 22 may be disposed in the center of the flat plate 21, and the boss 22 and the flat plate 21 may be integrally formed. For example, the boss 22 may be disposed in the center of the lower surface of the flat plate 21. The first damping part 20 may be columnar and may be disposed perpendicular to the flat plate 21. (The first arc edge 200 is shown in the reference section.) Figure 3 (The same below) can be a rounded corner of the cross-section of the first damping part 20. For example, the first rounded edge 200 can be a rounded corner on the cross-section of an existing square damping pin. Since the first rounded edge 200 is arc-shaped in the cross-section of the first damping part 20, the first rounded edge 200 can form a cylindrical shape when viewed as a whole from the first damping part 20.

[0076] Please also refer to Figure 6 and Figure 7 The base 3 can be rectangular in shape, with a square through hole 31 in the middle, and the boss 22 can be embedded in the square through hole 31. A first damping groove 32 can be provided at each of the four corners of the base 3, and the first gel 30 can be disposed in the first damping groove 32.

[0077] Please also refer to Figure 6 and Figure 7 The first damping part 20 can be set parallel to the Z-axis. (For the first movable part 2, please refer to...) Figure 1 The plate 21 and the base 3 can be spaced apart; for example, the plate 21 can be parallel to the top or bottom surface of the base 3. A first magnet can be provided on the first movable part 2, and a first coil with an iron core can be provided on the base 3. The magnetic force generated when the first coil is energized attracts or repels the first magnet, thereby causing the first movable part 2 to move radially relative to the base 3 along the first damping part 20. For example, the first coil can push the first movable part 2 to move relative to the base 3 in a direction parallel to the X-axis or parallel to the Y-axis, thereby causing the first damping part 20 to move relative to the first gel 30 in a direction parallel to the X-axis or parallel to the Y-axis. The first damping part 20 can be made of metal, such as steel or aluminum alloy.

[0078] like Figure 7 As shown, the first gel 30 can be semi-solid, and one end of the first damping part 20 can move within the first gel 30. The cross-section of the first damping part 20 can be parallel to the XoY plane. The number of first gels 30 can be the same as the number of first damping parts 20, so that each first gel 30 can act independently on its corresponding first damping part 20, avoiding the simultaneous failure of each first damping part 20 or each first gel 30, and improving the damping device 1 (please refer to [reference needed] for damping device 1). Figure 1 The reliability of ).

[0079] A first damping part 20 is provided in the first movable component 2, and a first arc edge 200 is provided in the cross-section of the first damping part 20. A first gel 30 is provided in the base 3, with the base 3 corresponding to the first movable component 2. One end of the first damping part 20 is inserted into the first gel 30, and the first movable component 2 drives the first damping part 20 to move radially relative to the first gel 30. The first arc edge 200 (which is arc-shaped when viewed from the cross-section of the first damping part 20, and cylindrical when viewed from the overall view of the first damping part 20) faces the direction of movement of the first damping part 20. Therefore, when the first damping part 20 moves in the first gel 30, since the first arc edge 200 has no sharp edges, it will not damage the first gel 30 when it comes into contact with it, thus allowing the first damping part 20 and the first gel 30 to easily maintain a bonded state.

[0080] like Figure 7 As shown, in some implementations, the first movable component 2 (see reference for the first movable component 2) Figure 5 The system also includes a movable body 23 and a first fixing frame 24, which are connected. The bottom of the movable body 23 is embedded in the base 3, and the other end of the first fixing frame 24 is connected to the first damping part 20. The movable body 23 may include a flat plate 21 and a boss 22, which can be embedded in the square through hole 31 of the base 3. The movable body 23 and the first fixing frame 24 can be connected by gluing or screwing. There can be four first fixing frames 24, which are spaced apart from each other. One first fixing frame 24 is provided at each of the four right angles of the flat plate 21. Two first fixing frames 24 on one narrow side of the movable body 23 and two first fixing frames 24 on the other narrow side of the movable body 23 can be symmetrically arranged about the XoZ plane. Similarly, two first fixing frames 24 on one wide side of the movable body 23 and two first fixing frames 24 on the other wide side of the movable body 23 can be symmetrically arranged about the YoZ plane. Each right angle of the plate 21 can be provided with a 45° chamfered right angle 210. Each first fixing frame 24 can be provided with a first damping part 20. The first damping part 20 can be set perpendicular to the movable body 23. The first fixing frame 24 can be integrally formed with the first damping part 20. Each first fixing frame 24 can include a trapezoidal plate 240 and a first straight rod 241. The upper bottom edge of the trapezoidal plate 240 is flush with the 45° chamfered right angle 210. The first straight rod 241 can be perpendicular to the upper bottom edge of the trapezoidal plate 240 and located at the midpoint of the upper bottom edge of the trapezoidal plate 240. The first straight rod 241 can be set perpendicular to the first damping part 20. The trapezoidal plate 240 can be fixed to the upper surface of the plate 21.

[0081] like Figure 8 As shown, in some implementations, damping device 1 (please refer to [reference needed] for damping device 1) Figure 1 It also includes: a frame 4 and a second movable component 5. The frame 4 includes a second damping part 40, the cross-section of which includes a second arc edge 400 (please refer to the second arc edge 400). Figure 9 (The same applies below). The second movable component 5 includes a second gel 50. The second movable component 5 is disposed corresponding to the frame 4. One end of the second damping part 40 is inserted into the second gel 50. The second movable component 5 is configured to drive the second gel 50 to move relative to the second damping part 40 along the axial direction of the second damping part 40. The second arc edge 400 faces the direction of movement of the first damping part 20. First movable component 2 (Please refer to the first movable component 2). Figure 1 After assembly with the second moving part 5, it can be mounted on the housing 6 (see housing 6 for reference). Figure 6 (The second damping portion 40 is covered.) In some embodiments, the second damping portion 40 may also include an arc-shaped end, which may be located at the axial end of the second damping portion 40 and inserted into the second gel 50, with the arc-shaped end facing the axial direction of the second damping portion 40. For example, the arc-shaped end may be located at the bottom end of the second damping portion 40. The specific structure of the arc-shaped end of the second damping portion 40 can be referred to as follows: Figure 4 The first damping part 20 shown has an arc end 203.

[0082] like Figure 8 As shown, a second damping groove 51 can be provided in the second movable part 5, and the second gel 50 can be disposed in the second damping groove 51. A second coil with an iron core can be provided on the frame 4, and a second magnet can be provided on the second movable part 5. The second coil, after being energized, pushes the second magnet, which in turn pushes the second movable part 5 to move relative to the frame 4 along the axial direction of the second damping part 40. For example, the energized second coil can push the second magnet to move in a direction parallel to the Z-axis, and the second magnet can push the second movable part 5 to move in a direction parallel to the Z-axis, thereby causing the second movable part 5 to move the second gel 50 relative to the second damping part 40 in a direction parallel to the Z-axis. The second gel 50 can be semi-solid, and one end of the second damping part 40 can move within the second gel 50.

[0083] like Figure 8 As shown, in some embodiments, the frame 4 further includes a frame body 41 and a second fixing bracket 42. The frame body 41 is fitted onto the second movable member 5, and the frame body 41 and the second fixing bracket 42 are connected. The other end of the second fixing bracket 42 and the second damping part 40 are connected. The frame body 41 may be cuboid in shape, with a polygonal through hole 410 in the middle. The second movable member 5 may be polygonal and may be fitted into the polygonal through hole 410. The frame body 41 and the second fixing bracket 42 may be connected by screws or adhesive. The second fixing bracket 42 and the second damping part 40 may be integrally formed. The second damping part 40 may be perpendicular to the frame body 41.

[0084] like Figure 8 As shown, in some embodiments, there are two second damping parts 40, with a second fixing bracket 42 positioned between the two second damping parts 40. For example, the two second damping parts 40 can be arranged in parallel. The number of second gels 50 can be the same as the number of second damping parts 40, so that each second gel 50 can act independently on the corresponding second damping part 40, avoiding the simultaneous failure of each second damping part 40 or each second gel 50, and improving the damping device 1 (please refer to the damping device 1). Figure 1 The reliability of the second fixing bracket 42 is as follows. There are two second fixing brackets 42, each disposed on one side of the frame body 41. For example, the two second fixing brackets 42 can be arranged facing each other (e.g., symmetrically arranged about the XoZ plane), and the two second fixing brackets 42 are located at the edge of the polygonal through hole 410. Each second fixing bracket 42 may include a square plate 420 and two second straight rods 421, which can be integrally formed. Each square plate 420 can be fixed to the upper surface of the frame body 41 near the middle position of the side of the frame body 41. The two second straight rods 421 can be arranged parallel to each other and perpendicular to the long side of the square plate 420, and each second straight rod 421 is vertically connected to a second damping part 40.

[0085] Please also refer to Figure 8 and Figure 9 The second damping portion 40 can be columnar. The second arc edge 400 can be a rounded corner of the cross-section of the second damping portion 40; for example, the second arc edge 400 can be a rounded corner on the cross-section of an existing square damping pin. The second damping portion 40 can be arranged perpendicular to the frame 4; for example, the second damping portion 40 can be parallel to the Z-axis. The second damping portion 40 can be made of a metallic material, such as steel or aluminum alloy. The cross-section of the second damping portion 40 can be parallel to the XoY plane. Although the second gel 50 normally moves along the axial direction of the second damping portion 40, when the damping device 1 (see damping device 1 for reference) is activated... Figure 1 When subjected to a collision (e.g., falling to the ground), the second gel 50 will also move along the first damping portion 20 (see the first damping portion 20 for details). Figure 6 The radial movement (e.g., moving in a direction parallel to the X-axis or Y-axis) of the second arc edge 400 towards the direction of movement of the first damping part 20 (e.g., moving the second arc edge 400 towards a direction parallel to the X-axis or Y-axis) can prevent the second gel 50 from being destroyed by the second damping part 40 when the second gel 50 moves radially along the first damping part 20.

[0086] like Figure 9As shown, in some implementations, the second arcuate edge 400 may bulge outward, for example, in a direction parallel to the X-axis or Y-axis. Viewed from the cross-section of the second damping portion 40, the second arcuate edge 400 is arc-shaped; viewed from the second damping portion 40 as a whole, the second arcuate edge 400 forms a cylindrical surface. The cross-section of the second damping portion 40 defines a second inscribed circle 401 (the second inscribed circle 401 is in...). Figure 9 (Represented by a circle formed by a dashed line in the image), the circumference of the second inscribed circle 401 is less than the circumference of the cross-section of the second damping part 40. The second inscribed circle 401 can be the circle with the largest area that can be formed by rounding the cross-section of the second damping part 40. Having a circumference of the second inscribed circle 401 smaller than the circumference of the cross-section of the second damping part 40 avoids excessive rounding of the second damping part 40, i.e., avoids the circumference of the second inscribed circle 401 being equal to or greater than the circumference of the cross-section of the second damping part 40. Because if the circumference of the second inscribed circle 401 is equal to or greater than the circumference of the cross-section of the second damping part 40, then although the sharp edges of the second damping part 40 have been removed by rounding, preventing the second damping part 40 from damaging the second gel 50 (see reference for the second gel 50),... Figure 8 (The same applies below), but at the same time, it will also cause the cross-sectional perimeter of the second damping part 40 to be too small (if the cross-sectional perimeter of the second damping part 40 is too small, from the perspective of the second damping part 40 as a whole, it will cause the side surface area of ​​the second damping part 40 to be too small, that is, it will cause the side area of ​​the second damping part 40 used to abut against the second gel 50 to be too small), which in turn will reduce the resistance force generated by the second damping part 40 in the second gel 50, and make the frame 4 (refer to the frame 4) Figure 8 It requires the use of other elastic elements (such as those connected to a spring) to increase the resistance force in order to meet the requirements, which will make the structure of the damping device 1 more complex.

[0087] like Figure 9 As shown, in some embodiments, the cross-section of the second damping part 40 further includes a second straight edge 402, which is connected to the second arcuate edge 400. There are four second straight edges 402 and four second arcuate edges 400, which are alternately connected to form the cross-section of the second damping part 40. Viewed from the cross-section of the second damping part 40, the second straight edge 402 is a line segment; viewed from the second damping part 40 as a whole, the second straight edge 402 forms a plane. For example, two of the four second straight edges 402 can be parallel to each other, and the remaining two can also be parallel to each other. The lengths of the four second arcuate edges 400 can also be the same, and both ends of each second arcuate edge 400 can be connected to a second straight edge 402. The second inscribed circle 401 can be tangent to all four second straight edges 402 simultaneously, and the center of the second inscribed circle 401 can coincide with the center of the cross-section of the second damping part 40.

[0088] like Figure 10 As shown, in another embodiment, an electronic device 7 is also provided, which includes the damping device 1 in the foregoing embodiments. For example, the electronic device 7 may be a smartphone, a digital camera, a dashcam, or a wearable device, etc.

[0089] The damping device and electronic device provided in the embodiments of this application have been described in detail above. For those skilled in the art, based on the ideas of the embodiments of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be construed as a limitation of this application. All equivalent modifications or changes made in accordance with the spirit and technical concept of this application should still be covered by the claims of this application.

Claims

1. A damping device applied to a voice coil motor, characterized in that it comprises: The first movable component includes a first damping portion, the cross-section of which includes a first arc edge; as well as A base includes a first gel, the base being disposed corresponding to the first movable component, one end of the first damping portion being inserted into the first gel, the first movable component being configured to drive the first damping portion to move radially relative to the first gel, the first arcuate edge abutting the first gel, and the first arcuate edge being oriented toward the movement direction of the first damping portion.

2. The damping device according to claim 1, characterized in that, The first movable component further includes a movable body and a first fixed frame, wherein the movable body and the first fixed frame are connected, and the first fixed frame is connected to the first damping part.

3. The damping device according to claim 2, characterized in that, The first fixing frame includes a trapezoidal plate and a first straight rod. The first straight rod is perpendicular to the upper bottom edge of the trapezoidal plate and is located at the midpoint of the upper bottom edge of the trapezoidal plate. The first straight rod and the first damping part are arranged perpendicularly.

4. The damping device according to claim 1, characterized in that, The cross-section of the first damping part also includes a first straight edge, which is connected to the first arc edge.

5. The damping device according to claim 4, characterized in that, The number of first straight edges is four, and the number of first arc edges is four. The four first straight edges and the four first arc edges are alternately connected to form the cross-section of the first damping part.

6. The damping device according to claim 5, characterized in that, The cross-section of the first damping part is defined by a first inscribed circle, the circumference of which is smaller than the circumference of the cross-section of the first damping part, and the first inscribed circle is tangent to the four first straight sides.

7. The damping device according to claim 1, characterized in that, The first damping part further includes an arc end, which is located at the axial end of the first damping part and inserted into the first gel, with the arc end facing the axial direction of the first damping part.

8. The damping device according to claim 1, characterized in that, Also includes: A frame, comprising a second damping portion, the cross-section of which includes a second circular arc edge; as well as The second movable component includes a second gel, which is disposed corresponding to the frame. One end of the second damping part is inserted into the second gel. The second movable component is configured to drive the second gel to move relative to the second damping part along the axial direction of the second damping part, with the second arc edge facing the direction of movement of the first damping part.

9. The damping device according to claim 8, characterized in that, The cross-section of the second damping part also includes a second straight edge, which is connected to the second arc edge.

10. The damping device according to claim 9, characterized in that, The number of second straight edges is four, and the number of second arc edges is four. The four second straight edges and the four second arc edges are alternately connected to form the cross section of the second damping part.

11. The damping device according to claim 10, characterized in that, The cross-section of the second damping part is defined by a second inscribed circle, the circumference of which is smaller than the circumference of the cross-section of the second damping part, and the second inscribed circle is tangent to the four second straight edges.

12. The damping device according to claim 8, characterized in that, The frame also includes a frame body and a second fixing frame. The frame body is sleeved on the second movable component. The frame body and the second fixing frame are connected. The second fixing frame is connected to the other end of the second damping part.

13. The damping device according to claim 12, characterized in that, The number of the second damping parts is two, and the two second damping parts are disposed between the second fixing frame.

14. The damping device according to claim 13, characterized in that, There are two second fixing brackets, which are respectively disposed on two sides of the frame body.

15. An electronic device, characterized in that, include: The damping device according to any one of claims 1-14.

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