Touch switch with high durability
By introducing a combination of spring and contact spring into the tactile switch, the travel and force of the button are limited, solving the durability problem caused by improper user operation and vibration, and improving the durability of the switch.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU MING HENG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-24
AI Technical Summary
Tactile switches are prone to irreversible physical deformation under improper user operation, affecting their durability.
By designing a structure including a base, a spring, a spring, and a fixed frame, the combination of the spring and the spring is used to reduce the button travel, limit the single downward force, and prevent the switch from loosening and internal parts from shifting due to excessive force or vibration. The fixed frame structure is used to limit the travel.
It effectively prevents the switch from loosening and internal structure damage caused by excessive pressing force or vibration, thus extending the service life of the tactile switch.
Smart Images
Figure CN224164176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tactile switch technology, specifically to a tactile switch with high durability. Background Technology
[0002] Tactile switches, as a common type of electronic switch, are widely used in numerous fields due to their significant advantages such as small size, light weight, low contact resistance, precise operating force, and diverse specifications. In the home appliance sector, tactile switches are ubiquitous, ranging from small white goods to digital products like MP3 and MP4 players, and from video game consoles to educational devices. They also play a crucial role in security, industrial control, new energy, audio-visual, communication, toys, fitness equipment, and medical devices.
[0003] However, in practical applications, tactile switches face many challenges that affect their durability. For example, improper operation by users, such as pressing too hard, can cause irreversible physical deformation of the internal structure of the tactile switch. Utility Model Content
[0004] Technical problems to be solved
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a tactile switch with high durability, which can effectively solve the problems in the existing technology.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] This utility model provides a highly durable tactile switch, including a base, a contact fixed to the bottom inner side of the base, a fixing frame fixed to the bottom of the base, a spring sleeved on the top of the fixing frame, a plunger placed on the top of the spring, a spring provided between the bottom of the plunger and the inner wall of the base, a switch cover provided on the top of the plunger, and the four corners of the switch cover fixed inside the base.
[0009] Furthermore, a fixing groove is provided at the top center of the fixing frame, and the bottom end and the outer side of the top end of the spring piece are both curved parts. The curved part at the bottom end is engaged in the fixing groove, and the curved part at the outer side of the top end and the spring piece form a platform structure, and the bottom end of the plunger is placed on the platform structure.
[0010] Furthermore, threaded cylinders are fixed to the four inner corners of the base, and the switch cover is fixed to the top of the threaded cylinders by bolts.
[0011] Furthermore, the spring is disposed inside the fixed frame, and the upper and lower sides of the spring are in contact with the external structure.
[0012] Furthermore, a circular groove is provided at the center of the top of the switch cover, and the button at the top of the plunger protrudes outward from the outside of the circular groove.
[0013] Furthermore, terminals are provided at the four corners of the outer side wall of the base, and the terminals are electrically connected to the internal contacts.
[0014] Beneficial effects
[0015] The technical solution provided by this utility model has the following advantages compared with the known public technology:
[0016] This invention utilizes a fixed frame and spring structure. When the user places the plunger on the spring and lightly touches the button on the plunger, the plunger presses down, deforming the spring structure and simultaneously pressing the spring. During this deformation, the fixed frame at the bottom provides support, preventing wobbling and displacement. This combination of spring and spring reduces the travel of the button / plunger, minimizing the impact of single-press pressure on the contact point and preventing damage to the internal structure of the switch from excessive pressure or travel. Furthermore, the fixed frame structure at the bottom limits the single-press travel; if the force is too great, it directly compresses the spring against the top of the fixed frame, preventing further pressure and greater contact force that could affect the contact point. Compared to existing structures, this device prevents the switch from loosening or internal parts from shifting due to equipment vibration or external impact, thus avoiding disruption to normal operation, shortening lifespan, and extending durability. Attached Figure Description
[0017] 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.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is an exploded view of the structure of this utility model;
[0020] Figure 3 This is a cross-sectional view of the fixed frame and spring sheet in this utility model.
[0021] The labels in the diagram represent: 1. Base; 2. Switch cover; 3. Plunger; 4. Terminal; 5. Contact; 6. Fixing frame; 61. Fixing groove; 7. Spring; 71. Bending part; 8. Spring. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0023] The present invention will be further described below with reference to the embodiments.
[0024] Example: A highly durable tactile switch, see attached diagram. Figure 1 - Appendix Figure 3 The system includes a base 1, a contact 5 fixed to the bottom inner side of the base 1, a fixing frame 6 fixed to the bottom of the base 1, a spring 7 sleeved on the top of the fixing frame 6, a plunger 3 placed on the top of the spring 7, a spring 8 between the bottom of the plunger 3 and the inner wall of the base 1, and a switch cover 2 on the top of the plunger 3, with the four corners of the switch cover 2 fixed inside the base 1.
[0025] The top center of the fixed frame 6 has a fixed groove 61, and the bottom and top outer sides of the spring 7 are both curved portions 71. The curved portion 71 at the bottom is engaged in the fixed groove 61, and the curved portion 71 at the top and the spring 7 form a platform structure, with the bottom end of the plunger 3 placed on the platform structure. Through the fixed frame 6 and spring 7 structure, when the user places the plunger 3 on the spring 7 and lightly touches the button on the plunger 3, the plunger 3 can press down on the spring 7 structure to deform it, while simultaneously pressing the spring 8. When the spring 7 deforms, the fixed frame 6 at the bottom provides support, preventing it from shaking or shifting. Through the combination structure of the spring 7 and the spring 8, the stroke of the button / plunger 3 is reduced, the impact of the single downward pressure on the contact point 5 is reduced, and excessive pressing force or excessive stroke is avoided to prevent damage to the internal structure of the switch.
[0026] The base 1 has threaded cylinders fixed at its four inner corners, and the switch cover 2 is fixed to the top of the threaded cylinders by bolts. The spring 8 is located inside the fixed frame 6, and the upper and lower sides of the spring 8 are in contact with the external structure. The top center of the switch cover 2 has a circular groove, and the button at the top of the plunger 3 protrudes from the outside of the circular groove. The four corners of the outer wall of the base 1 are provided with terminals 4, and the terminals 4 are electrically connected to the internal contacts 5. Furthermore, the structure of the fixed frame 6 at the bottom can limit the single downward stroke. If the force is large, it will directly compress the spring 7 and contact the top of the fixed frame 6, preventing further downward pressure and generating greater contact force, which would affect the contact 5. Compared with the existing structure, this device has the function of preventing the switch from loosening or the internal parts from shifting due to equipment vibration or external impact, avoiding affecting its normal operation and shortening its lifespan, and extending its durability.
[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. A highly durable tactile switch, characterized in that, Includes a base (1), with a contact (5) fixed to the bottom inner side of the base (1), a fixing frame (6) fixed to the bottom of the base (1), a spring (7) sleeved on the top of the fixing frame (6), a plunger (3) placed on the top of the spring (7), a spring (8) provided between the bottom of the plunger (3) and the inner wall of the base (1), and a switch cover (2) provided on the top of the plunger (3), with the four corners of the switch cover (2) fixed inside the base (1).
2. The high-durability tactile switch according to claim 1, characterized in that, The top center of the fixed frame (6) is provided with a fixed groove (61), and the bottom and top outer sides of the spring piece (7) are both curved parts (71). The curved part (71) at the bottom is locked in the fixed groove (61), and the curved part (71) at the top and the spring piece (7) form a platform structure, and the bottom end of the plunger (3) is placed on the platform structure.
3. The high-durability tactile switch according to claim 1, characterized in that, The base (1) has threaded cylinders fixed at the four inner corners, and the switch cover (2) is fixed to the top of the threaded cylinders by bolts.
4. A high-durability tactile switch according to claim 1, characterized in that, The spring (8) is located inside the fixed frame (6), and the upper and lower sides of the spring (8) are in contact with the external structure.
5. A high-durability tactile switch according to claim 4, characterized in that, A circular groove is provided at the top center of the switch cover (2), and the button at the top of the plunger (3) protrudes out of the outside of the circular groove.
6. A high-durability tactile switch according to claim 1, characterized in that, Terminals (4) are provided at the four corners of the outer side wall of the base (1), and the terminals (4) are electrically connected to the internal contacts (5).