Micro-motion mute switch structure

Abstract

The utility model discloses a kind of micro-motion mute switch structure, including base and upper cover, movable piece is set between base and upper cover, first terminal, second terminal and third terminal that pass through the top of base are sequentially set from the rear end of base to front, pivot end and fixed end of front and rear arrangement are formed in the top of base to the first terminal, first contact end and second contact end of upper and lower arrangement are formed in the top of base to the third terminal and second terminal, pivot end is between the second contact end and fixed end, one end of movable piece is fixed in fixed end, the other end is inserted between first contact end and second contact end, elastic sheet is set in the bottom of movable piece, one end of elastic sheet is fixed in pivot end, the other end is inserted between first contact end and second contact end and fixed on movable piece, pressing piece is set in the top of movable piece, the bottom of pressing piece is provided with contact part, contact part is located in pivot end or between pivot end and second contact end.

Description

Technical Field

[0001] This utility model relates to the field of micro switches, specifically a micro silent switch structure. Background Technology

[0002] A micro switch is a switching structure that relies on a spring to drive a movable piece to move between two terminals. It is commonly used in computer mice and mechanical buttons in vehicles. Utility patent CN217641075U discloses a button structure for a mouse, including a base and a top cover fastened to the top of the base, the base, a movable piece, and a support assembly coupled to the movable piece; the movable piece is disposed between the base and the top cover, and an elastic piece is suspended within the movable piece, one end of which is integrally connected to the movable piece; a pressing block is provided on the top surface between the rear ends of the elastic piece and the movable piece.

[0003] However, in the above solution, the pressing block is located between the fixed end of the movable piece and the fulcrum. When the user operates the pressing block, the distance between the pressing block and the fulcrum and the rear end of the movable piece is relatively far. Therefore, when the movable piece moves up and down, a large torque is generated, which will produce a loud noise when the upper and lower terminals come into contact. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a micro-motion silent switch structure, including a base and a top cover fastened to the top of the base. A movable piece is disposed between the base and the top cover. A first terminal, a second terminal, and a third terminal are sequentially disposed from the rear end of the base forward, penetrating the top of the base. The first terminal forms a fulcrum end and a fixed end arranged front-to-back on the top of the base. The third terminal and the second terminal form a first contact end and a second contact end arranged vertically on the top of the base. The fulcrum end is located between the second contact end and the fixed end. One end of the movable piece is fixed to the fixed end, and the other end extends between the first contact end and the second contact end. An elastic piece is disposed at the bottom of the movable piece. One end of the elastic piece is fixed to the fulcrum end, and the other end extends between the first contact end and the second contact end and is fixed to the movable piece. A pressing member is disposed at the top of the movable piece, and a contact portion is disposed at the bottom of the pressing member. The contact portion is located at the fulcrum end or between the fulcrum end and the second contact end.

[0005] Furthermore, the first terminal, the second terminal, and the third terminal extend through the bottom of the base, and form the first pin, the second pin, and the third pin at the bottom of the base.

[0006] Furthermore, a V-shaped groove is provided at the top of the fixed end, and one end of the movable piece is snapped and fixed in the V-shaped groove.

[0007] Furthermore, the upper cover is provided with a receiving groove, the top of the upper cover is provided with a through groove communicating with the receiving groove, the upper cover is provided with limiting grooves on both sides, and the base is provided with hooks that cooperate with the limiting grooves on both sides.

[0008] Furthermore, the pressing element includes a pressing block and an L-shaped rod. The pressing block is inserted into the receiving groove and extends out from the through groove, so as to allow the user to press it. One end of the L-shaped rod is connected to the pressing block, and the contact portion is disposed at the other end of the L-shaped rod and contacts the movable piece.

[0009] Furthermore, there are two L-shaped rods, each contacting one or both sides of the movable piece. This reduces the contact area between the pressing element and the movable piece, thereby further improving the noise reduction effect.

[0010] Furthermore, the movable piece includes a hollow portion, the elastic piece is located inside the hollow portion, and the L-shaped rods respectively form contact on both sides of the hollow portion.

[0011] Furthermore, the contact portion is located above the elastic sheet.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This application, by placing the contact portion at the fulcrum end or between the fulcrum end and the second contact end, reduces the acceleration of the movable piece when it contacts the first and second contact ends, thereby making the movement of the movable piece with the first and second contact ends almost silent, thus achieving a good noise reduction effect.

[0014] Additional aspects and advantages of this invention will be set forth in the description which follows, and some will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the assembly between the pressing part and the moving part of this utility model;

[0018] Figure 3This is a schematic diagram of the structure of the top cover of this utility model;

[0019] Figure 4 This is a schematic diagram of the pressing part and the movable part of this utility model.

[0020] The reference numerals and names in the figure are as follows:

[0021] Base 100, top cover 200, movable piece 300, first terminal 110, second terminal 120, third terminal 130, fulcrum end 111, fixed end 112, first contact end 131, second contact end 121, elastic piece 310, pressing member 400, contact part 410, first pin 113, second pin 122, third pin 132, V-groove 112a, receiving groove 210, through groove 220, limiting groove 230, hook 140, pressing block 420, L-shaped rod 430, hollow part 320. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The present invention will now be described in more detail. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0024] In the description of this utility model, it should be noted that directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom," indicating directions or positional relationships, are generally based on the directions or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. In the description of this utility model, it should be noted that the use of terms such as "first" and "second" to define components is merely for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0026] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0027] The preferred embodiments of this utility model will now be further described with reference to the accompanying drawings. Figure 1 and Figure 2As shown, this application relates to a micro-motion silent switch structure, mainly used in applications requiring touch switching, such as mice and automotive mechanical buttons. It includes a base 100 and a top cover 200 fastened to the top of the base 100. A movable piece 300 is disposed between the base 100 and the top cover 200. A first terminal 110, a second terminal 120, and a third terminal 130 are sequentially arranged from the rear end of the base 100 forward, penetrating the top of the base 100. The first terminal 110 forms a fulcrum end 111 and a fixed end 112 arranged front-to-back on the top of the base 100. The third terminal 130 and the second terminal 120 form a first contact end 131 and a second contact end 12 arranged vertically on the top of the base 100. 1. The fulcrum end 111 is located between the second contact end 121 and the fixed end 112. One end of the movable piece 300 is fixed to the fixed end 112, and the other end extends between the first contact end 131 and the second contact end 121. An elastic piece 310 is provided at the bottom of the movable piece 300. One end of the elastic piece 310 is fixed to the fulcrum end 111, and the other end extends between the first contact end 131 and the second contact end 121 and is fixed to the movable piece 300. A pressing member 400 is provided at the top of the movable piece 300, and a contact portion 410 is provided at the bottom of the pressing member 400. The contact portion 410 is located at the fulcrum end 111 or between the fulcrum end 111 and the second contact end 121. Preferably, the contact portion 410 is located above the elastic piece 310.

[0028] In the normal operating state of this application, one end of the movable piece 300 is fixed to the fixed end 112, and the other end is tilted upward under the elastic support of the elastic piece 310 to form contact with the first contact end 131. At this time, the first terminal 110 and the third terminal 130 are connected. When the user operates the pressing member 400, causing its contact part 410 to press down and move the movable piece 300 downward, the movable piece 300 forms contact with the second contact end 121. At this time, the first terminal 110 and the second terminal 120 are connected. When the user releases the pressing member 400, the movable piece 300 is tilted upward again under the action of the elastic piece 310. The contact portion 410 is tilted up and makes contact with the first contact end 131, thereby achieving a switching effect. During this process, since the contact portion 410 is located at the fulcrum end 111 or between the fulcrum end 111 and the second contact end 121, the distance between the contact portion 410 and the fulcrum end 111 and the second contact end 121 becomes smaller. This results in a smaller torque between the contact portion 410 and the fulcrum end 111, and a smaller acceleration of the movable piece 300 between the first contact end 131 and the second contact end 121. Therefore, the contact between the movable piece 300 and the first contact end 131 and the second contact end 121 is almost silent, achieving a quiet effect.

[0029] Compared with the prior art, this application provides a better noise reduction effect by placing the contact part 410 between the fulcrum end 111 or between the fulcrum end 111 and the second contact end 121. This reduces the acceleration of the movable piece 300 when it comes into contact with the first contact end 131 and the second contact end 121, resulting in almost no sound when the movable piece 300 moves with the first contact end 131 and the second contact end 121.

[0030] Furthermore, based on the above embodiments, such as Figure 2 As shown, the first terminal 110, the second terminal 120 and the third terminal 130 pass through the bottom of the base 100, and form a first pin 113, a second pin 122 and a third pin 132 on the bottom of the base 100. The first pin 113, the second pin 122 and the third pin 132 are used to form an electrical connection with the circuit board (not shown in the figure).

[0031] Further, regarding the contact in the above embodiments, such as Figure 2 As shown, a V-shaped groove 112a is provided on the top of the fixed end 112, and one end of the movable piece 300 is snapped and fixed in the V-shaped groove 112a, thereby forming a fixed connection between one end of the movable piece 300 and the fixed end 112.

[0032] Further, regarding the contact in the above embodiments, such as Figure 3 As shown, the upper cover 200 is provided with a receiving groove 210, and a through groove 220 communicating with the receiving groove 210 is provided on the top of the upper cover 200. Limiting grooves 230 are provided on both sides of the upper cover 200, and hooks 140 that cooperate with the limiting grooves 230 are provided on both sides of the base 100. When the upper cover 200 is fastened to the base 100, the pressing member 400 is inserted into the receiving groove 210 and extends out from the through groove 220. The limiting groove 230 is engaged with the hook, thereby fixing the upper cover 200 and the base 100 to each other.

[0033] Further, regarding the contact in the above embodiments, such as Figure 4 As shown, the pressing member 400 includes a pressing block 420 and an L-shaped rod 430. The pressing block 420 is inserted into the receiving groove 210 and extends out from the through groove 220, so as to allow the user to press it. One end of the L-shaped rod 430 is connected to the pressing block 420, and the contact part 410 is provided at the other end of the L-shaped rod 430 and contacts the movable piece 300.

[0034] Further, regarding the contact in the above embodiments, such as Figure 4As shown, the L-shaped rod 430 has two contact points, which can also be connected into a whole and contact the two sides of the movable piece 300 respectively. This can reduce the contact area between the pressing member 400 and the movable piece 300, thereby further improving the noise reduction effect.

[0035] Further, regarding the contact in the above embodiments, such as Figure 4 As shown, the movable piece 300 includes a hollow portion 320, the elastic piece 310 is located inside the hollow portion 320, and the L-shaped rod 430 forms contact with both sides of the hollow portion 320.

[0036] Further, regarding the contact in the above embodiments, such as Figure 4 As shown, the bottom of the contact portion 410 is an arc or a rectangle, so that when the user operates the pressing member 400 and causes the contact portion 410 to press down and move the movable piece 300 downward, the wear of the contact portion 410 on the top of the movable piece 300 can be reduced.

[0037] The details of the above exemplary embodiments are provided, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A micro-actuated mute switch structure, characterized by, The device includes a base (100) and a top cover (200) fastened to the top of the base (100). A movable piece (300) is provided between the base (100) and the top cover (200). A first terminal (110), a second terminal (120), and a third terminal (130) are sequentially arranged from the rear end of the base (100) forward, penetrating the top of the base (100). The first terminal (110) forms a fulcrum end (111) and a fixed end (112) arranged front to back on the top of the base (100). The third terminal (130) and the second terminal (120) form a first contact end (131) and a second contact end (121) arranged vertically on the top of the base (100). The fulcrum end (111) is located at the second contact end (121). Between the fixed end (112) and the fixed end (112), one end of the movable piece (300) is fixed to the fixed end (112), and the other end extends between the first contact end (131) and the second contact end (121). An elastic piece (310) is provided at the bottom of the movable piece (300). One end of the elastic piece (310) is fixed to the fulcrum end (111), and the other end extends between the first contact end (131) and the second contact end (121) and is fixed on the movable piece (300). A pressing member (400) is provided at the top of the movable piece (300), and a contact part (410) is provided at the bottom of the pressing member (400). The contact part (410) is located at the fulcrum end (111) or between the fulcrum end (111) and the second contact end (121).

2. The micro-motion silent switch structure according to claim 1, characterized in that, The first terminal (110), the second terminal (120) and the third terminal (130) penetrate the bottom of the base (100) and form a first pin (113), a second pin (122) and a third pin (132) on the bottom of the base (100).

3. The micro-motion mute switch structure according to claim 1, characterized in that, The top of the fixed end (112) is provided with a V-groove (112a), and one end of the movable piece (300) is snapped and fixed in the V-groove (112a).

4. The micro-motion mute switch structure according to claim 1, characterized in that, The upper cover (200) is provided with a receiving groove (210), and a through groove (220) communicating with the receiving groove (210) is provided on the top of the upper cover (200). Limiting grooves (230) are provided on both sides of the upper cover (200), and hooks (140) that cooperate with the limiting grooves (230) are provided on both sides of the base (100).

5. The micro-motion silent switch structure according to claim 4, characterized in that, The pressing member (400) includes a pressing block (420) and an L-shaped rod (430). The pressing block (420) is inserted into the receiving groove (210) and extends out from the through groove (220). One end of the L-shaped rod (430) is connected to the pressing block (420), and the contact part (410) is disposed at the other end of the L-shaped rod (430) and contacts the movable piece (300).

6. The micro-motion silent switch structure according to claim 5, characterized in that, The L-shaped rod (430) contacts both sides of the movable piece (300).

7. The micro-motion silent switch structure according to claim 6, characterized in that, The movable piece (300) includes a hollow portion (320), the elastic piece (310) is located inside the hollow portion (320), and the L-shaped rod (430) forms contact on both sides of the hollow portion (320).

8. The micro-motion silent switch structure according to claim 7, characterized in that, The bottom of the contact portion (410) is either arc-shaped or rectangular.

9. The micro-motion silent switch structure according to claim 1, characterized in that, The contact portion (410) is located above the elastic sheet (310).

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