Push switch structure

Abstract

The utility model provides a kind of press switch structure, especially a kind of switch design suitable for miniaturization electronic component, it mainly includes a seat body, a terminal group, a conducting group, a pressing piece, a cover and a fixing piece, the cover is provided with a base, the base center is provided with a through hole for pressing piece to pass out, and the periphery of the through hole is provided with multiple lugs, the multiple lugs can effectively block solder from penetrating into the inside of the through hole during welding operation, avoid solder into the active area of pressing piece, and guide solder to flow along the outer edge, improve the stability of welding process and the operation reliability of overall switch, the utility model has the advantages of simple structure, compact size, good effect of preventing solder penetration, etc., suitable for electronic device with limited space and high stability.

Description

Technical Field

[0001] This utility model relates to a push-button switch structure, and more particularly to a miniature push-button switch with the function of preventing solder from seeping into the pressing area. It addresses the problem that existing miniature switches are prone to solder seepage during the soldering process, which can lead to jamming or failure. The present invention proposes a solder-proof structure with blocking and diversion design to solve this problem. Background Technology

[0002] Existing push-button switches are widely used in various electronic devices, where users press them to turn conductive components on or off, achieving switch control functions. However, due to the increasing demand for miniaturization, switch sizes are shrinking, resulting in more compact internal spaces and a relatively higher density of soldering operations. This significantly increases the risk of solder seepage during the manufacturing process.

[0003] In traditional switch structures, it is common to have a through hole in the cover to expose the pressing part. However, the through hole lacks a solder-proof structure. When solder flows from the terminal soldering part or other metal contacts, it is very easy for it to enter the through hole due to capillary action or gravity. This can cause the pressing part and the conductive spring to be obstructed, resulting in switch jamming, ineffective pressing, or even long-term poor contact or conductivity failure, affecting the overall product life and reliability.

[0004] While some existing technologies attempt to enhance protection with silicone rings, sealing gaskets, etc., these are mostly additional components, increasing material costs and assembly complexity. They also fail to effectively guide or divert solder flow. Therefore, under actual production conditions, they still cannot fully solve the solder penetration problem, which is the key area that those engaged in this industry urgently need to research and improve. Utility Model Content

[0005] Therefore, in view of the above-mentioned problems and deficiencies, the main purpose of this utility model is to provide a push-button switch structure.

[0006] This utility model provides a push-button switch structure, including a base, a terminal group, a conductive group, a pressing member, and a cover. The base has a central accommodating space and a base plate within the accommodating space. The terminal group includes a first terminal and a second terminal disposed within the accommodating space of the base. The conductive group has at least one conductive spring assembled within the accommodating space and arranged longitudinally above the terminal group. The pressing member is assembled above the conductive group, and the bottom of the base of the pressing member has a supporting protrusion corresponding to the top of the at least one conductive spring. The cover covers the base, and the base of the cover has a through hole at its center for the pressing member to pass through. A plurality of protrusions protrude from the base toward the center of the through hole. These protrusions can block and guide the solder flow during the soldering process to prevent solder from flowing into the base and affecting the pressing of the switch.

[0007] The main body of the base has locating pins protruding from the two winglets extending from both sides, and the bottom of the locating side plates extending from both sides of the base of the cover has locating holes for assembling the locating pins of the base.

[0008] The first contact portion extending from one side of the first terminal of the terminal group is provided within the accommodating space, and a first welding portion extending outward from the main body to the bottom is provided on the opposite side of the first contact portion. The second contact portion extending from one side of the second terminal is provided within the accommodating space adjacent to the first contact portion, and a second welding portion extending outward from the bottom to the main body is provided on the opposite side of the second contact portion.

[0009] In this conductive assembly, each of the at least one conductive spring sheet has a raised pressing portion formed on its central surface, and an abutting portion extends outward from the periphery of the pressing portion.

[0010] The pressing component has a base at the bottom of the pressing block with positioning blocks extending from both sides, and the bottom of the through hole of the cover is connected to form a storage space for storing the two positioning blocks of the pressing component.

[0011] The pressing component has a pressing part on the top of the pressing block.

[0012] The base of the cover has a positioning buckle protruding from the outer side of each of the two positioning side plates. The base and the cover are further assembled with a fixing member. The fixing member has a fixing plate that is bent and extended on both sides and fixed to the surface of the two positioning side plates of the cover. The fixing plate has a fixing hole that engages with the positioning buckle. The top of each fixing plate is bent and extended with a buckle plate positioned above the positioning side plate of the cover. A fixing flange extends from one side of each fixing plate.

[0013] A waterproof component is further provided between the pressing component and the conductive assembly.

[0014] This invention has the advantages of simple structure, compact size, and excellent anti-solder penetration effect, and is suitable for electronic devices with limited space and requiring high stability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the push-button switch structure of this utility model.

[0016] Figure 2 This is a three-dimensional view of the push-button switch structure of this utility model from another perspective.

[0017] Figure 3 This is an exploded perspective view of the push-button switch structure of this utility model.

[0018] Figure 4 This is an exploded perspective view of the push-button switch structure of this utility model.

[0019] Figure 5 This is a side cross-sectional view of the push-button switch structure of this utility model.

[0020] Figure 6 This is a side cross-sectional view of the push-button switch structure of this utility model from another perspective.

[0021] Explanation of reference numerals in the attached drawings: 1-Base; 11-Main body; 110-Accommodation space; 111-Base plate; 12-Wing; 121-Positioning post; 2-Terminal group; 21-First terminal; 211-First contact part; 212-First welding part; 22-Second terminal; 221-Second contact part; 222-Second welding part; 3-Conductive group; 31-Conductive spring; 311-Pressing part; 312-Abutting part; 4-Pressing element; 41 - Pressing block; 411- Pressing part; 42- Base; 421- Positioning block; 422- Supporting protrusion; 4221- Supporting part; 5- Cover; 50- Through hole; 500- Storage space; 51- Base; 501- Protrusion; 511- Positioning side plate; 5110- Positioning hole; 5111- Positioning buckle; 6- Fixing component; 61- Fixing plate; 610- Fixing hole; 611- Buckle plate; 612- Fixing flange; 7- Waterproof component. Detailed Implementation

[0022] Please see Figures 1 to 6 The figures shown are, respectively, a three-dimensional appearance view, a three-dimensional appearance view from another perspective, an exploded three-dimensional view, an exploded three-dimensional view from another perspective, a side sectional view, and a side sectional view from another perspective of the push-button switch structure of this utility model. This utility model provides a push-button switch structure, mainly including a base 1, a terminal group 2, a conductive group 3, a pressing member 4, and a cover 5. The connection relationship of the aforementioned components is as follows:

[0023] The base 1 has a central accommodating space 110 in the main body 11, and a base plate 111 in the accommodating space 110. Positioning posts 121 are protruding on the winglets 12 extending on both sides of the main body 11.

[0024] The terminal group 2 is disposed within the accommodating space 110 of the main body 11, and the terminal group 2 includes a first terminal 21 and a second terminal 22. A first contact portion 211 extending from one side of the first terminal 21 is disposed within the accommodating space 110, and a first welding portion 212 extending outward from the main body 11 to the bottom is provided on the opposite side of the first contact portion 211. A second contact portion 221 extending from one side of the second terminal 22 is disposed within the accommodating space 110 adjacent to the first contact portion 211, and a second welding portion 222 extending outward from the bottom of the main body 11 is provided on the opposite side of the second contact portion 221.

[0025] The conductive assembly 3 is provided with at least one conductive spring piece 31 (e.g., ...) assembled within the accommodating space 110 and arranged longitudinally above the terminal assembly 2. Figure 5 , Figure 6 As shown), and each of the at least one conductive spring 31 has an arched pressing portion 311 formed on its central surface, and an abutting portion 312 extends outward from the periphery of the pressing portion 311.

[0026] The pressing member 4 is assembled on top of the conductive assembly 3, and the pressing member 4 has a pressing part 411 on the top of the pressing block 41. The base 42 at the bottom of the pressing block 41 has positioning blocks 421 extending on both sides. The bottom of the base 42 has a supporting protrusion 422 corresponding to the top of at least one conductive spring piece 31, and the supporting part 4221 at the bottom of the supporting protrusion 422 supports the top of the at least one conductive spring piece 31.

[0027] The cover 5 covers the base 1, and the base 51 of the cover 5 has a through hole 50 in the center for the pressing block 41 to pass through. A storage space 500 for the two positioning blocks 421 of the pressing member 4 is formed at the bottom of the through hole 50. The base 51 has a plurality of protrusions 501 protruding towards the center of the through hole 50. The bottom of the positioning side plates 511 extending from both sides of the base 51 has positioning holes 5110 for the positioning post 121 of the base 1 to be assembled. A positioning buckle 5111 protrudes from the outer side of each of the two positioning side plates 511.

[0028] Furthermore, a fixing member 6 is further assembled on the outside of the base 1 and the cover 5, and the fixing member 6 has a fixing plate 61 that is bent and extended on both sides and fixed to the surface of the two positioning side plates 511 of the cover 5. The fixing plate 61 has a fixing hole 610 that engages with the positioning buckle 5111, and a buckle plate 611 that is bent and extended from the top of each fixing plate 61 and positioned above the positioning side plate 511 of the cover 5. A fixing flange 612 extends from one side of each fixing plate 61.

[0029] Furthermore, a waterproof component 7 is provided between the pressing component 4 and the conductive assembly 3. The waterproof component 7 can be made of waterproof tape, waterproof cloth, or other sheet material with waterproof properties. Such simple and uniform changes and modifications do not limit the scope of protection of this utility model, and are hereby declared.

[0030] Therefore, in practical applications, this utility model is suitable for fields with limited volume, small structure, and high stability requirements. Since such applications typically require extremely short strokes and low pressing pressure, and the internal mechanisms are compact, the base 51 of the cover 5 of this utility model is provided with a plurality of protrusions 501 protruding towards the center of the through hole 50. In actual soldering operations, these protrusions 501 effectively form a barrier, providing a physical barrier as solder seeps upwards, preventing solder from further entering the through hole 50 and preventing solder from accidentally flowing into the active area of ​​the pressing block 41. Furthermore, these protrusions 501 not only have a blocking function, but also... The special protrusion around the through hole 50 can also guide the solder to flow along the outer periphery, allowing the solder to flow towards the area around the base 51 rather than concentrating and seeping into the storage space 500. This flow guiding mechanism can further reduce the risk of solder accumulating at the joint between the pressing member 4 and the cover 5, maintaining the operational sensitivity and long-term stability of the pressing structure. Therefore, the protrusion 501 design introduced into the precision microstructure of this utility model can effectively enhance the welding reliability and pressing performance without increasing the manufacturing complexity, providing a simple and highly practical innovative solution to the problem of solder penetration interference.

[0031] Furthermore, the fixing flange 612 of the fixing member 6 can also be soldered to a pre-assembled object (not shown in the figure) as required for assembly. However, this design also adds a soldering area to the switch structure, which, together with the original soldering points such as the first soldering part 212 and the second soldering part 222, constitutes multiple soldering points of this utility model. Although this multi-point soldering feature helps to fix the component, it also greatly increases the risk of solder flow and diffusion during high temperature, especially forming a potential penetration channel around the through hole 50. Therefore, the protrusion 501 specially provided on the base 51 plays a key role. In addition to serving as a blocking mechanism, the protrusion 501 also has a guiding function due to its surrounding configuration. In multi-point soldering scenarios, it can effectively guide the solder away from the through hole 50 and the storage space 500, preventing the solder from seeping into the active area of ​​the pressing member 4, and ensuring the overall switching function is stable and error-free. This design consideration helps to improve the process yield and product durability, and is especially suitable for electronic application devices with extremely high requirements for micro-contamination and precision.

[0032] Furthermore, the aforementioned waterproof component 7 is disposed between the pressing component 4 and the conductive assembly 3. Its main purpose is to prevent external liquids or moisture from seeping into the accommodating space 110 through the through hole 50, thereby protecting the key conductive components such as the conductive spring 31, the first terminal 21, and the second terminal 22 disposed therein. Since this utility model is applied to a micro switch structure, the internal space is small and the structure is compact. The intrusion of any trace amount of liquid may lead to short circuit, corrosion, or deterioration of conductivity. The waterproof component 7 can be made of flexible and sealing waterproof tape, waterproof cloth, or other impermeable sheet material. It can be cut or molded according to assembly requirements so that it fits the contact interface between the bottom of the pressing component 4 and the top of the conductive spring 31, effectively forming a protective barrier. In addition, the waterproof component 7 also has a buffering effect, which can reduce the instantaneous pressure of the pressing component 4 on the conductive assembly 3, avoid deformation or fatigue damage of the spring due to excessive concentrated pressure, and further improve the overall switch life and durability.

[0033] Therefore, the main feature of this utility model is that the base 51 of the cover 5 is provided with a plurality of protrusions 501 protruding toward the center of the through hole 50, so that during the welding operation, when the solder flows from the first welding part 212, the second welding part 222 or the fixed flange 612, the protrusions 501 can effectively block the solder from entering the through hole 50, and prevent the solder from seeping into the storage space 500 or the active area of ​​the pressing member 4.

[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Therefore, any simple modifications and equivalent structural changes made based on the description and drawings of the present utility model should also be included in the patent scope of the present utility model.

Claims

1. A push-button switch structure, comprising a base, a terminal group, a conductive group, a pressing element, and a cover, characterized in that: The main body of the seat has a central accommodating space, and a base plate is provided in the accommodating space; The terminal assembly includes a first terminal and a second terminal, which are disposed within the receiving space of the main body; The conductive assembly is provided with at least one conductive spring piece assembled in the accommodating space and arranged longitudinally above the terminal assembly; The pressing component is assembled on top of the conductive assembly, and the bottom of the base of the pressing component is provided with a supporting protrusion corresponding to the top of at least one conductive spring piece; The cover covers the top of the base, and the base of the cover has a through hole in the center for the pressing member to pass through. The base has a plurality of protrusions protruding towards the center of the through hole. The plurality of protrusions extend toward the pressing member to form a block and guide.

2. The push-button switch structure as described in claim 1, characterized in that: The main body of the base has fins extending from both sides, each with a protruding positioning post. The bottom of the positioning side plates extending from both sides of the base of the cover has positioning holes for assembling the positioning posts of the base.

3. The push-button switch structure as described in claim 1, characterized in that: The first contact portion extending from one side of the first terminal of the terminal assembly is provided within the accommodating space, and a first welding portion extending outward from the body to the bottom is provided on the other side of the first terminal. The second contact portion extending from one side of the second terminal is provided within the accommodating space adjacent to the first contact portion, and a second welding portion extending outward from the body to the bottom is provided on the other side of the second terminal.

4. The push-button switch structure as described in claim 1, characterized in that: The central surface of each of the at least one conductive spring in the conductive assembly has an arched pressing portion, and an abutting portion extends outward from the periphery of the pressing portion.

5. The push-button switch structure as described in claim 1, characterized in that: The pressing component has a base at the bottom of the pressing block with positioning blocks extending from both sides. The bottom of the through hole of the cover is connected to form a storage space for storing the two positioning blocks of the pressing component.

6. The push-button switch structure as described in claim 1, characterized in that: The pressing component has a pressing part on the top of the pressing block.

7. The push-button switch structure as described in claim 1, characterized in that: Each of the two positioning side plates extending from the base of the cover has a positioning buckle protruding from its outer side. A fixing member is assembled on the body and the cover. The fixing member has a fixing plate that is bent and extended on both sides and fixed to the surface of the two positioning side plates of the cover. The fixing plate has a fixing hole that engages with the positioning buckle. The top of each fixing plate is bent and extended to have a buckle plate positioned above the positioning side plate of the cover. A fixing flange extends from one side of each fixing plate.

8. The push-button switch structure as described in claim 1, characterized in that: A waterproof component is provided between the pressing component and the conductive assembly.

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