Improved structure of push switch

Abstract

The utility model provides a kind of press switch improved structure, it mainly includes a pedestal, a conductive spring piece, a pressure member and a cover, wherein the pressure member is provided with a sealing gasket, the bottom has a noise reduction space, and is extended and is provided with a convex part and the noise reduction wall below it, and the sealing gasket is provided with soundproof wall, the noise reduction wall and the soundproof wall constitute double-layer noise reduction structure, to absorb and interfere with the sound wave and structural vibration generated in the process of pressing, significantly improve the mute effect, in addition, the sealing gasket top is provided with sealing convex part, by cover pressure setting and sealing containment space when assembling, to achieve the auxiliary effect of waterproof, dustproof and isolation external impurities, improve overall structural stability and durability.

Description

Technical Field

[0001] This utility model relates to an improved push-button switch structure, specifically a design that combines a pressing element and a conductive spring, along with a special sound-damping and noise-reducing wall structure, to effectively suppress structural noise generated during operation and pressure, while also providing a certain degree of sealing and waterproofing. It is suitable for operating mechanisms of electronic devices that require low noise and environmental protection. Background Technology

[0002] Existing common push-button switches typically consist of a base, a spring-loaded metal contact, a pressing element, and a cover. The user presses the pressing element, causing it to depress and connect the metal spring to the conductor below, thus controlling the circuit's on / off state. However, this traditional structure often produces noticeable button clicks or metallic pops during operation due to the spring's deformation and rebound. This excessive noise makes it unsuitable for quiet operation, especially in applications sensitive to noise, such as medical equipment, office keyboards, and consumer electronics, causing user discomfort and interference.

[0003] Furthermore, most existing switch structures are designed only for mechanical triggering, without enhancing their acoustic performance, sound wave path control, or sound absorption effects. This allows sound waves to easily transmit into the external space through gaps in the mechanism, resulting in a lack of effective design to suppress structural noise. Some designs attempt to incorporate elastic materials for covering, but this is only for buffering purposes and does not incorporate specific sound wave reflection or interference structures, thus limiting the actual noise reduction effect.

[0004] Furthermore, in terms of protection performance, traditional switch structures are not good at protecting against the infiltration of external liquids and dust. If used in humid or dusty environments, they are prone to corrosion of metal springs, short circuits, or unstable contacts, which further affects operational reliability and product lifespan.

[0005] Therefore, the industry needs an improved structure that can effectively reduce the noise of switch operation and has a sealing and waterproof function to improve the shortcomings of existing push-button switches in terms of sound control and environmental protection, thereby improving the user experience and product durability. This is the key area that those engaged in this industry urgently need to research and improve. Utility Model Content

[0006] Therefore, in view of the above-mentioned problems and deficiencies, the main purpose of this utility model is to provide an improved structure for a push-button switch.

[0007] This utility model provides an improved push-button switch structure, including a base, a conductive spring, a pressing member, and a cover. The base has a bottom surface within an accommodating space. The conductive spring is disposed within this accommodating space. The pressing member includes a sealing gasket and a pressing element assembled within the accommodating space of the base. The sealing gasket has a plurality of sealing protrusions on its top surface corresponding to the top surface of the base. A storage space for the pressing element is recessed towards the center of the top of the main body. A pressing block protrudes from the center of the bottom of this storage space. A noise-reducing space is formed by a central recess at the bottom of the main body, and a protrusion extending downwards from the bottom of the main body through this noise-reducing space is also present. Furthermore, the bottom of the protrusion has a gradually widening noise-reducing wall with an outwardly inclined contact surface. The pressing member has a limiting plate that extends downward and has a pushing part aligned with the top of the pressing block. A pressing block protrudes upward from the limiting plate. The cover has a bottom plate that covers the top of the base and has a positioning part at the top of the bottom plate. A limiting space is formed inside the positioning part. A through hole is provided at the top of the positioning part for the pressing block of the pressing member to pass through. When the protrusion of the sealing gasket contacts the conductive spring, a contact sound will be generated. The inclined structure of the noise-reducing wall can guide the lateral diffusion of the contact sound and destroy its concentrated conduction path, so as to effectively suppress the structural noise generated during operation and pressing.

[0008] The accommodating space of the seat has a plurality of first limiting grooves extending around it.

[0009] The top of the base is provided with a plurality of fixing parts, and the positioning part of the cover is provided with a plurality of assembly holes that are engaged and positioned with the plurality of fixing parts of the base.

[0010] The base is further provided with a positioning post in the plurality of fixing parts, which can be positioned by engaging with the plurality of assembly holes of the cover.

[0011] The conductive spring has an abutting portion around its periphery that abuts against a plurality of preset first contact surfaces on the bottom surface, and an arched contact portion in the center of the conductive spring.

[0012] The bottom of the main body of the pressing member is surrounded by a sound-damping wall.

[0013] The bottom surface of the pushing part of the pressing member is provided with a pushing surface.

[0014] The limiting plate of the pressing member has at least one limiting block protruding to the periphery, and the limiting space of the cover has a plurality of second limiting grooves extending around it to accommodate the at least one limiting block.

[0015] The pressing block of the pressing member has a pressing surface on its top.

[0016] The sealing gasket can be made of silicone, foam, or other materials with properties such as elastic sealing, waterproofing, sound insulation, insulation, and cushioning.

[0017] The advantages of this utility model are: it not only has substantial advantages in acoustic performance, but also takes into account environmental tolerance and reliability, and achieves multiple functions such as quietness, waterproofing, and dustproofing. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the improved push-button switch structure of this utility model.

[0019] Figure 2 This is a three-dimensional view of the improved push-button switch structure of this utility model.

[0020] Figure 3 This is an exploded perspective view of the improved push-button switch structure of this utility model.

[0021] Figure 4 This is an exploded perspective view of the improved push-button switch structure of this utility model.

[0022] Figure 5 This is a side cross-sectional view of the improved push-button switch structure of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1-Base; 11-Seat body; 110-Accommodation space; 1100-First limiting groove; 1101-Bottom surface; 111-Top holding surface; 112-Fixing part; 1121-Positioning post; 2-Conductive spring; 21-Abutting part; 22-Contact part; 3-Pressing element; 31-Sealing gasket; 311-Main body; 3110-Storage space; 3111-Pressure block; 3113-Noise reduction space; 3114-Sound-damping wall; 312-Sealing protrusion; 313-Protrusion; 3131-Abutting surface; 3132-Noise reduction wall; 32-Pressing element; 321-Limiting plate; 3211-Limiting block; 322-Pushing part; 3221-Pushing surface; 323-Pressing block; 3231-Pressing surface; 4-Cover; 41-Base plate; 410-Assembly hole; 42-Positioning part; 420-Limiting space; 4200-Second limiting groove; 421-Perforation. Detailed Implementation

[0024] Please see Figures 1 to 4 The figures shown are a perspective view, a perspective view from another perspective, an exploded perspective view, and an exploded perspective view of the improved push-button switch structure of this utility model. This utility model provides an improved push-button switch structure, mainly comprising a base 1, a conductive spring 2, a pressing member 3, and a cover 4. The connection relationships of the aforementioned components are as follows:

[0025] The base 1 has a bottom surface 1101 in the accommodating space 110 inside the base body 11, and a plurality of first limiting grooves 1100 extend around the accommodating space 110. The top of the base body 11 is provided with a plurality of top holding surfaces 111 and a plurality of fixing parts 112 corresponding to the plurality of first limiting grooves 1100.

[0026] The conductive spring 2 is disposed inside the accommodating space 110, and the periphery of the conductive spring 2 is provided with an abutting portion 21 that abuts against the surface of a plurality of preset first contacts (not shown in the figure) provided on the bottom surface 1101. Furthermore, an arched contact portion 22 is provided in the center of the conductive spring 2.

[0027] The pressing member 3 is equipped with a sealing gasket 31 and a pressing member 32 assembled in the receiving space 110 of the base 11. The top of the main body 311 of the sealing gasket 31 is provided with a plurality of sealing protrusions 312 corresponding to the plurality of supporting surfaces 111. A receiving space 3110 is recessed towards the center at the top of the main body 311, and a pressing block 3111 is protruding from the center of the bottom of the receiving space 3110. A noise reduction space 3113 is formed by the recessed bottom of the main body 311, and a protrusion 313 extends downward from the bottom of the main body 311 through the noise reduction space 3113. The bottom has a contact surface 3131 with a gradually widening noise reduction wall 3132 that slopes outwards. The bottom of the main body 311 is surrounded by a sound-insulating wall 3114. The pressing member 32 is located in the storage space 3110. The pressing member 32 has a limiting plate 321 that extends downwards and has a pushing part 322 that is aligned with the top of the pressing block 3111. A pushing surface 3221 is provided on the bottom surface of the pushing part 322. The limiting plate 321 has at least one limiting block 3211 protruding outwards. A pressing surface 3231 is provided on the top of the pressing block 323 that protrudes upwards from the limiting plate 321.

[0028] The cover 4 has a base plate 41 covering the top of the base 11, and a positioning part 42 is provided on the top of the base plate 41. A limiting space 420 is formed inside the positioning part 42, and a plurality of second limiting grooves 4200 extend around the limiting space 420. A through hole 421 is provided on the top of the positioning part 42 for the pressing block 323 of the pressing member 32 to pass through. A plurality of assembly holes 410 are provided around the positioning part 42 for engaging and positioning with the plurality of fixing parts 112 of the base 1.

[0029] Furthermore, the plurality of fixing parts 112 of the base 1 mentioned above are provided with a positioning post 1121. The positioning post 1121 can be positioned by engaging with the plurality of assembly holes 410 of the cover 4. The positioning post 1121 is not limited to plug-in positioning, but can also be riveted or otherwise inserted into the plurality of assembly holes 410 to form a fixed position. Such simple and uniform changes and modifications do not limit the scope of protection of this utility model, and are hereby stated.

[0030] Please refer to the following: Figure 5 The figure shows a side cross-sectional view of the improved push-button switch structure of this utility model. As can be clearly seen from the figure, in practical application, pressing the pressing surface 3231 of the actuating member 3 causes the pushing part 322 of the actuating member 3 to move downwards, causing the pushing surface 3221 to abut against the surface of the pressing block 3111. The pressing block 3111 is continuously pushed by the pushing part 322, which forces the protrusion 313 on the other side to continue moving downwards, so that the abutting surface 3131 at the bottom of the protrusion 313 contacts the contact part 2 of the aligned conductive spring 2. 2. This causes the contact portion 22 to be pushed downward and deformed, and to make contact and conduct with the plurality of preset first contacts and at least one preset second contact (not shown in the figure) provided in the seat 11 to switch the state of the switch. When the abutment surface 3131 contacts the contact portion 22 of the conductive spring 2 after being pressed and generates structural vibration or impact sound, the inclined structure of the noise reduction wall 3132 can guide the impact sound wave to diffuse to the side and destroy its concentrated conduction path, thereby effectively attenuating the sound energy transmitted upward or to the outside, so as to reduce the sound generated when pressing.

[0031] In addition, the noise reduction wall 3132 has a gradually widened shape, different tilt angles, or asymmetrical curvature, which helps to generate multiple refraction, interference, or energy dispersion effects between the tilted wall surfaces, thereby effectively reducing the rebound and sharpness of high-frequency vibrations. Different materials (such as elastomers, low-density rubber, or polymers with sound-absorbing properties) can also be designed according to actual needs to enhance the energy absorption and noise reduction effects.

[0032] Furthermore, the main body 311 of the aforementioned sealing gasket 31 can also be made of silicone, foam, or other materials with elastic sealing, waterproofing, sound insulation, insulation, and cushioning properties. Such simple and uniform variations and modifications do not limit the scope of protection of this utility model and are hereby declared.

[0033] Furthermore, the sound-blocking wall 3114 surrounding the bottom of the aforementioned main body 311 extends downward in a ring and is located on the outer periphery of the noise reduction space 3113. Its function is to form a sound energy blocking ring. During the pressing operation, it can prevent the instantaneous sound waves generated by the contact surface 3131 and the conductive spring 2 from being directly transmitted outward, and guide the sound waves to be concentrated and reflected and interfered with by the noise reduction wall 3132 extending from the protrusion 313. In turn, it works synergistically with the noise reduction wall 3132 to strengthen and disrupt the propagation path of the sound waves. Thus, the sound-blocking wall 3114 and the noise reduction wall 3132 can form a double-layer blocking and interference structure. The sound-blocking wall 3114 is mainly used for initial surrounding blocking and sound wave guidance, while the noise reduction wall 3132 uses an inclined structure to perform multiple refractions, dispersion and reverse reflection. The combination of the two can effectively reduce sound leakage and the generation of sharp noise, and achieve a better silent pressing experience.

[0034] Furthermore, after assembly, the plurality of sealing protrusions 312 on the top of the aforementioned sealing gasket 31 are pressed onto the sealing protrusions 312 of the sealing gasket 31 by the bottom plate 41 of the cover body 4. This ensures that the sealing protrusions 312 and the bottom plate 41 are in close contact and correspondingly enclosed at the periphery of the opening of the accommodating space 110, forming a complete covering and blocking structure. In this way, the accommodating space 110 in the assembled state consists of the sealing gasket 31, the sealing protrusions 312, and the bottom plate 41. This creates a completely sealed environment, effectively preventing moisture, dust, or other external impurities from entering the accommodating space 110, thereby avoiding corrosion, failure, or poor conductivity of the conductive spring 2. At the same time, the sealed structure formed by the sealing protrusion 312 also has a good sound insulation effect, which can block the vibration sound generated by the deformation of the conductive spring 2 from being transmitted outward when the pressing member 3 is operated, further improving the quietness effect of this utility model and achieving an operating environment that combines waterproofing, dustproofing, and noise reduction.

[0035] In summary, the improved push-button switch structure of this utility model, through the sealing gasket 31 structure provided in the pressing member 3, combined with the elastic and buffering main body 311, the noise reduction wall 3132 extending from the protrusion 313, and the surrounding sound-damping wall 3114, can effectively absorb and disperse the instantaneous impact sound and structural vibration generated by the deformation of the conductive spring 2 during the pressing operation, thereby achieving a significant noise reduction and silencing effect. It is especially suitable for occasions with high requirements for low-noise environments, such as medical equipment, office spaces, or high-end consumer electronics products.

[0036] Furthermore, the sealing protrusion 312 is pressed and positioned by the bottom plate 41 of the cover 4 after assembly, which can also form a partial sealing structure in the accommodating space 110, providing additional waterproof and dustproof protection, preventing external moisture and impurities from seeping in and causing internal conductive structure failure or deterioration, further extending the product's service life and improving stability. Overall, this utility model not only has substantial advantages in acoustic performance, but also takes into account environmental tolerance and reliability, achieving multiple functions such as quietness, waterproofing, and dustproofing, and has high industrial application value and market competitiveness.

[0037] 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. An improved push-button switch structure, characterized in that, It includes a base, a conductive spring, a pressing element, and a cover, wherein: The base has a bottom surface within its internal accommodating space. The conductive spring is located inside the accommodating space; The pressing component includes a sealing gasket and a pressing component assembled in the accommodating space of the seat. The main body of the sealing gasket has a plurality of sealing protrusions on its top, which are opposite to the top surface of the seat. The main body has a central recessed storage space for the pressing component. A pressing block is protruding from the center of the bottom of the storage space. A noise reduction space is formed by the central recess of the bottom of the main body. A protrusion extends downward from the bottom of the main body and passes through the noise reduction space. The abutting surface at the bottom of the protrusion has a gradually widening noise reduction wall that slopes outward. The pressing component has a limiting plate that extends downward and has a pushing part that is aligned with the top of the pressing block. A pressing block protrudes upward from the limiting plate. The cover has a bottom plate that covers the top of the base. The top of the bottom plate has a positioning part, and a limiting space is formed inside the positioning part. A through hole is provided on the top of the positioning part for the pressing block of the pressing member to pass through. When the protrusion of the sealing gasket comes into contact with the conductive spring, a contact sound will be generated. The inclined structure of the noise reduction wall can guide the lateral diffusion of the contact sound and destroy the concentrated conduction path of the contact sound.

2. The improved push-button switch structure as described in claim 1, characterized in that: The accommodating space of the seat has a plurality of first limiting grooves extending around it.

3. The improved push-button switch structure as described in claim 1, characterized in that: The top of the base is provided with a plurality of fixing parts, and the positioning part of the cover is provided with a plurality of assembly holes that are engaged and positioned with the plurality of fixing parts of the base.

4. The improved push-button switch structure as described in claim 3, characterized in that: The base has a positioning post in the plurality of fixing parts, which can be positioned by engaging with the plurality of assembly holes of the cover.

5. The improved push-button switch structure as described in claim 1, characterized in that: The conductive spring has an abutting portion around its periphery that abuts against a plurality of preset first contact surfaces on the bottom surface, and an arched contact portion in the center of the conductive spring.

6. The improved push-button switch structure as described in claim 1, characterized in that: The bottom of the main body of the pressure component is surrounded by a sound-damping wall.

7. The improved push-button switch structure as described in claim 1, characterized in that: The bottom surface of the pushing part of the pressure member is provided with a pushing surface.

8. The improved push-button switch structure as described in claim 1, characterized in that: The limiting plate of the pressing member has at least one limiting block protruding to its periphery, and a plurality of second limiting grooves extend around the limiting space of the cover to accommodate the at least one limiting block.

9. The improved push-button switch structure as described in claim 1, characterized in that: The pressing block of the pressing member has a pressing surface on its top.

10. The improved push-button switch structure as described in claim 1, characterized in that: The sealing gasket is made of silicone, foam, or other materials with elastic sealing, waterproofing, sound insulation, insulation, and cushioning properties.

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