A silent waterproof micro switch

Abstract

The utility model provides a kind of soundless waterproof microswitch, comprising: pedestal, with accommodating groove, the bottom of accommodating groove is provided with connecting sheet assembly;Spring piece, installation is above connecting sheet assembly, spring piece top surface is provided with silica gel film;Button, with the button rod that protrudes outside pedestal, and the press portion that is located the bottom of button rod, and is in abutment with silica gel film;Silica gel cover, with the sleeve rod portion that is set on button rod, and dustproof portion, dustproof portion covers the opening of accommodating groove, is set at the bottom of sleeve rod portion and extends outward, by silica gel film cover spring piece, vibration and impact generated when spring piece action are effectively absorbed and buffered, fundamentally significantly reduce operating noise, and the sleeve rod portion of silica gel cover is wrapped button rod, dustproof portion covers entire accommodating groove opening, and is pressed tightly with pedestal, form reliable seal, effectively prevent liquid and dust from invading from switch top, integrate silica gel cover and button, compact structure, assembly is simple, and reliability is high.

Description

Technical Field

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

[0002] Microswitches, as important control components, are widely used in various electrical and electronic devices. The switching of contacts inside the switch is mainly accomplished by the instantaneous movement of a metal spring. This action inevitably produces a relatively loud "click" sound. This noise seriously affects the user experience in situations requiring a quiet environment (such as office equipment, medical instruments, or home bedrooms). Secondly, the housings of conventional microswitches are mostly unsealed or poorly sealed, making them susceptible to moisture and dust intrusion at the button gaps and lead wire interfaces. This can lead to oxidation or short circuits of the internal metal contacts, significantly reducing reliability and lifespan. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects of high noise and poor waterproof performance of existing micro switches, thereby providing a silent and waterproof micro switch.

[0004] Therefore, this utility model provides a silent and waterproof micro switch, including a base, a spring, a button, a silicone membrane, a silicone sleeve, and a cover plate. The base has a receiving groove, and a connecting piece assembly is provided at the bottom of the receiving groove. The spring is installed above the connecting piece assembly, and a silicone membrane is provided on the top surface of the spring. The button has a button rod extending out of the base and a pressing part located at the bottom of the button rod and abutting against the silicone membrane. The silicone sleeve has a sleeve rod portion fitted onto the button rod and a dustproof portion provided at the bottom of the sleeve rod portion and extending outward, the dustproof portion covering the opening of the receiving groove. The cover plate is assembled with the base and presses the dustproof portion tightly connected to the base.

[0005] The dustproof part is cross-shaped, and the top surface of the base is formed with a positioning groove that matches the cross-shaped dustproof part.

[0006] The opening edge of the receiving groove is surrounded by a protrusion.

[0007] The base has four corners with riveting posts, and the cover plate is riveted to the base by the riveting posts.

[0008] The connecting piece assembly includes a first connecting piece located in the middle and second connecting pieces located on both sides of the first connecting piece. The spring piece has an arched structure, with its middle part corresponding to the first connecting piece and its bottom two sides respectively abutting against the two second connecting pieces.

[0009] The base is formed with a groove located between the first connecting piece and the second connecting piece.

[0010] The technical solution of this utility model has the following advantages: 1. The silent and waterproof micro switch provided by this utility model effectively absorbs and buffers the vibration and impact generated when the spring is in motion by covering the spring with a silicone film, which fundamentally and significantly reduces the operating noise. The silicone sleeve wraps around the button rod, and the dustproof part covers the entire receiving groove opening and is pressed tightly with the base to form a reliable seal, effectively preventing liquid and dust from entering from the top of the switch. The silicone sleeve and the button are integrated into one unit, with a compact structure, simple assembly, and high reliability.

[0011] 2. The silent and waterproof micro switch provided by this utility model, with its cross-shaped dustproof part and positioning groove, ensures that the silicone sleeve will not shift or twist during assembly, thus ensuring that its sealing performance is always in the best condition.

[0012] 3. The silent and waterproof micro switch provided by this utility model has a protrusion on the edge of the receiving groove opening. After it is matched with the cover plate, it will tightly press the dustproof part of the silicone sleeve to form a higher sealing barrier.

[0013] 4. The silent and waterproof micro switch provided by this utility model has a groove between the first connecting piece and the second connecting piece. The groove further increases the creepage distance between the first connecting piece and the second connecting piece, thereby improving the safety performance. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a perspective view of the silent waterproof micro switch of this utility model; Figure 2 An exploded view of the silent, waterproof microswitch. Figure 3 for Figure 1 Cross-sectional view; Figure 4 This is a three-dimensional view of the base.

[0016] Explanation of reference numerals in the attached drawings: 1. Base; 2. Receiving groove; 3. Connecting piece assembly; 4. Spring piece; 5. Silicone membrane; 6. Button; 7. Button rod; 8. Pressing part; 9. Silicone sleeve; 10. Sleeve rod part; 11. Dustproof part; 12. Cover plate; 13. Positioning groove; 14. Protrusion; 15. Riveting post; 16. First connecting piece; 17. Second connecting piece; 18. Groove. Detailed Implementation The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] Example This embodiment provides a silent, waterproof micro switch, such as Figure 1 and Figure 2 As shown, it includes a base 1, a spring 4, a silicone membrane 5, a button 6, a silicone sleeve 9, and a cover plate 12.

[0021] Base 1, such as Figure 3 and Figure 4As shown, the base 1 has a receiving groove 2, and a connecting piece assembly 3 is provided at the bottom of the receiving groove 2. A protrusion 14 is provided around the opening edge of the receiving groove 2. Riveting posts 15 are formed at the four corners of the top of the base 1. The cover plate 12 is riveted and fixed to the base 1 by the riveting posts 15. The connecting piece assembly 3 includes a first connecting piece 16 located in the middle and second connecting pieces 17 located on both sides of the first connecting piece 16. The base 1 is formed with a groove 18 located between the first connecting piece 16 and the second connecting piece 17.

[0022] like Figure 3 As shown, the spring piece 4 is installed above the connecting piece assembly 3. A silicone film 5 is provided on the top surface of the spring piece 4. In this embodiment, the spring piece 4 has an arched structure. The middle part of the spring piece 4 is correspondingly arranged with the first connecting piece 16, and the bottom two sides respectively abut against the two second connecting pieces 17.

[0023] Button 6 has a button rod 7 extending out of the base 1, and a pressing part 8 located at the bottom of the button rod 7 and abutting against the silicone film 5.

[0024] Silicone sleeve 9, such as Figure 2 and Figure 3 As shown, it has a sleeve portion 10 sleeved on the button rod 7, and a dustproof portion 11 provided at the bottom of the sleeve portion 10 and extending outward. The dustproof portion 11 covers the opening of the receiving groove 2. The dustproof portion 11 is cross-shaped. The top surface of the base 1 is formed with a positioning groove 13 adapted to the cross-shaped dustproof portion 11.

[0025] The cover plate 12 is assembled with the base 1 and presses the dustproof part 11 to the base 1. The cover plate 12 has a through hole formed in the middle for the button rod 7 to extend out.

[0026] The silent and waterproof micro switch provided by this utility model effectively absorbs and buffers the vibration and impact generated when the spring 4 is activated by covering the spring 4 with a silicone film 5, which significantly reduces the operating noise. The sleeve 10 of the silicone sleeve 9 wraps around the button rod 7, and the dustproof part 11 covers the entire opening of the receiving groove 2 and is pressed tightly with the base 1 to form a reliable seal, effectively preventing liquid and dust from entering from the top of the switch. The silicone sleeve 9 and the button 6 are integrated into one unit, which has a compact structure, simple assembly, and high reliability.

[0027] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A silent, waterproof micro switch, characterized in that, include: The base (1) has a receiving groove (2), and a connecting piece assembly (3) is provided at the bottom of the receiving groove (2); A spring sheet (4) is installed above the connecting piece assembly (3), and a silicone film (5) is provided on the top surface of the spring sheet (4). The button (6) has a button rod (7) extending out of the base (1) and a pressing part (8) located at the bottom of the button rod (7) and abutting against the silicone film (5); The silicone sleeve (9) has a sleeve rod portion (10) fitted onto the button rod (7) and a dustproof portion (11) provided at the bottom of the sleeve rod portion (10) and extending outward, the dustproof portion (11) covering the opening of the receiving groove (2); The cover plate (12) is assembled with the base (1) and the dustproof part (11) is pressed and connected to the base (1).

2. The silent and waterproof micro switch according to claim 1, characterized in that, The dustproof part (11) is cross-shaped, and the top surface of the base (1) is formed with a positioning groove (13) that is adapted to the cross-shaped dustproof part (11).

3. The silent, waterproof micro switch according to claim 1 or 2, characterized in that, The opening edge of the receiving groove (2) is provided with a protrusion (14).

4. The silent and waterproof micro switch according to claim 1, characterized in that, The base (1) has four corners with riveting posts (15) formed on its top, and the cover plate (12) is riveted to the base (1) by the riveting posts (15).

5. The silent, waterproof micro switch according to claim 1, characterized in that, The connecting piece assembly (3) includes a first connecting piece (16) located in the middle and second connecting pieces (17) located on both sides of the first connecting piece (16). The spring piece (4) has an arched structure. The middle part of the spring piece (4) is correspondingly arranged with the first connecting piece (16), and the bottom two sides respectively abut against the two second connecting pieces (17).

6. The silent, waterproof micro switch according to claim 5, characterized in that, The base (1) is formed with a groove (18) located between the first connecting piece (16) and the second connecting piece (17).

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