Injection molding integrated membrane switch
By using an injection-molded one-piece membrane switch, combined with a compression spring and a wrapping device, the problems of easy wear and insufficient protection of traditional membrane switches are solved, achieving switch stability and dustproof capability, and extending service life.
Patent Information
- Application Number
- CN202423136475.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional membrane switches are prone to wear and tear during frequent use, have insufficient protective performance, and are easily invaded by external dust, affecting their service life and reliability.
It adopts an injection-molded one-piece structure, combined with the elastic deformation of the compression spring and the wrapping device, to realize the opening and closing function of the switch, and provide a stable working environment and dustproof capability.
It extends the service life of the switch, reduces wear, and improves the stability and dustproof performance of the equipment.
Smart Images

Figure CN223598586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of membrane switch technology, specifically to an injection-molded integrated membrane switch. Background Technology
[0002] Membrane switches play a vital role in the widespread application of modern electronic devices. However, traditional membrane switches have many limitations. Their simple structural design makes them susceptible to significant impacts during frequent use due to a lack of effective buffering, leading to accelerated wear, shortened lifespan, and insufficient protection. External dust can easily penetrate the switch, affecting normal contact and conductivity, increasing the probability of malfunctions, and reducing the reliability and stability of the equipment. Frequent maintenance and replacement not only increase costs but also affect equipment efficiency.
[0003] The compression spring in the switching device uses elastic deformation to achieve the switching function and has a good buffering mechanism to effectively reduce wear. The enclosure provides a stable working environment and dust protection for the switch. The two work together to meet the high stability requirements of electronic devices for membrane switches. Utility Model Content
[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: an injection-molded integrated membrane switch, comprising: a connecting membrane; a wrapping device, the outer wall of which is fixedly connected to the outer wall of the connecting membrane; a switching device, the outer wall of which is fixedly connected to the inner wall of the wrapping device; the switching device includes a connecting sleeve, the outer side wall of which has a connecting groove, the inner side wall of which is fixedly connected to a flexible plate, the outer wall of which is fixedly connected to a circular plate, the outer wall of which is fixedly connected to a connecting disc, the outer wall of which is fixedly connected to a movable column, the outer wall of which is fitted with a compression spring, the outer wall of which is fixedly connected to the bottom of the connecting disc, thereby realizing the opening and closing function of the switch by setting the elastic deformation of the compression spring of the switching device, and with a good buffering mechanism, extending the service life of the switch.
[0005] Preferably, the packaging device includes a connecting plate, the wall of which has a movable hole, a cover shell is fixedly connected to the outer wall of the top of the connecting plate, a connecting ring is fixedly connected to the inner side wall of the cover shell, and the outer wall of the connecting ring has a beveled groove.
[0006] Preferably, the sidewall of the connecting plate is fixedly connected to the inner wall of the connecting membrane, the inner wall of the connecting plate is slidably connected to the outer wall of the movable column through a movable hole, the outer wall of the top of the connecting plate is fixedly connected to the outer wall of the bottom of the compression spring, the outer wall of the connecting ring is fixedly connected to the outer wall of the connecting sleeve through a beveled groove, and the outer wall of the connecting sleeve is fixedly connected to the outer wall of the covering shell through a connecting groove. The wrapping device provides a stable working environment and good dustproof capability, reducing wear on the switch during frequent use.
[0007] The beneficial effects of this utility model are as follows:
[0008] 1. This utility model realizes the opening and closing function of the switch by setting the elastic deformation of the compression spring of the switching device, and with a good buffering mechanism, it extends the service life of the switch.
[0009] 2. This utility model provides a stable working environment and good dustproof capability by setting up a wrapping device, which reduces the wear and tear of the switch during frequent use. Attached Figure Description
[0010] Figure 1 This is a perspective view of the present invention;
[0011] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0012] Figure 3 This is a schematic diagram of the structure of the packaging device of this utility model;
[0013] Figure 4 This is a schematic diagram of the switching device of this utility model;
[0014] In the diagram: 1. Connecting membrane; 2. Wrapping device; 3. Switching device; 21. Connecting plate; 22. Movable hole; 23. Cover shell; 24. Connecting ring; 25. Inclined groove; 31. Connecting sleeve; 32. Connecting groove; 33. Flexible plate; 34. Circular plate; 35. Connecting disc; 36. Compression spring; 37. Movable column. Detailed Implementation
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0016] Example: Please refer to Figure 1 - Figure 4 This utility model provides a technical solution: an injection-molded integrated membrane switch, comprising: a connecting membrane 1; a wrapping device 2, the outer wall of which is fixedly connected to the outer wall of the connecting membrane 1; a switching device 3, the outer wall of which is fixedly connected to the inner wall of the wrapping device 2; the switching device 3 includes a connecting sleeve 31, the outer side wall of which has a connecting groove 32, the inner side wall of which is fixedly connected to a flexible plate 33, the outer wall of which is fixedly connected to a circular plate 34, the outer wall of which is fixedly connected to a connecting disk 35, the outer wall of which is fixedly connected to a connecting disk 35, the outer wall of which is fixedly connected to a movable column 37, the outer wall of which is fitted with a compression spring 36, and the top of which is fitted with a compression spring 36. The outer wall of the device is fixedly connected to the outer wall of the bottom of the connecting plate 35. When an external force is applied to the cover shell 23, the switching device 3 is subjected to force, causing the cover shell 23 to deform and indent. The circular plate 34 is subjected to force and transmits the force to the connecting sleeve 31 through the flexible plate 33. Since the connecting sleeve 31 and the cover shell 23 are fixed in position through the connecting groove 32, the circular plate 34 moves and causes the flexible plate 33 to deform. Since the connecting sleeve 31 contacts the connecting ring 24 and is fixed along the inclined groove 25, the connecting sleeve 31 can be stably fixed in the wrapping device 2. During this process, the movable column 37 moves downward with the connecting sleeve 31 and passes through the movable hole 22 on the connecting plate 21, thereby achieving the function of switching.
[0017] The packaging device 2 includes a connecting plate 21, a movable hole 22 is provided in the wall of the connecting plate 21, a cover shell 23 is fixedly connected to the outer wall of the top of the connecting plate 21, a connecting ring 24 is fixedly connected to the inner side wall of the cover shell 23, and a sloping groove 25 is provided on the outer wall of the connecting ring 24.
[0018] The side wall of the connecting plate 21 is fixedly connected to the inner wall of the connecting membrane 1. The inner wall of the connecting plate 21 is slidably connected to the outer wall of the movable column 37 through the movable hole 22. The outer wall of the top of the connecting plate 21 is fixedly connected to the outer wall of the bottom of the compression spring 36. The outer wall of the connecting ring 24 is fixedly connected to the outer wall of the connecting sleeve 31 through the inclined groove 25. The outer wall of the connecting sleeve 31 is fixedly connected to the outer wall of the covering shell 23 through the connecting groove 32. When the external force disappears, the compression spring 36 releases elastic potential energy, pushes the movable column 37 to move upward, and then drives the connecting sleeve 31 back to the position before it was squeezed. This allows the membrane switch to accurately sense the external force and respond. The opening and closing function of the switch is realized through the elastic deformation of the compression spring 36. The wrapping device 2 provides a stable working environment and good dustproof capability.
[0019] Working principle:
[0020] When using this injection-molded integrated membrane switch, the wrapping device 2 is fixed to the user component via the connecting membrane 1. When an external force is applied to the cover shell 23, the switch device 3 is stressed, causing the cover shell 23 to deform and indent. The circular plate 34 is stressed and the force is transmitted to the connecting sleeve 31 through the flexible plate 33. Due to the connection via the connecting groove 32, the positions of the connecting sleeve 31 and the cover shell 23 are fixed at this time. Therefore, the circular plate 34 moves while simultaneously deforming the flexible plate 33. Since the connecting sleeve 31 contacts the connecting ring 24 and is fixed along the inclined groove 25, the connecting sleeve 31 can be stably fixed within the wrapping device 2. During this process, the movable column 37 moves downward along with the connecting sleeve 31 and passes through the movable hole 22 on the connecting plate 21, thereby achieving the switching function. Since the connecting plate 35 is synchronously belted... The movement of the compression spring 36 causes it to be compressed, and its elastic potential energy gradually increases. The flexible plate 33 and the circular plate 34 buffer and stabilize the movement of the connecting sleeve 31, preventing the connecting sleeve 31 from shaking or shifting, thus ensuring the stability and reliability of the switch during the force process. When the external force disappears, the compression spring 36 releases its elastic potential energy, pushing the movable column 37 upward, which in turn drives the connecting sleeve 31 back to its position before being compressed. This allows the membrane switch to accurately sense the external force and respond. The opening and closing function of the switch is realized through the elastic deformation of the compression spring 36. The wrapping device 2 provides a stable working environment and good dustproof capability. Furthermore, due to the close cooperation between the components and the good buffering mechanism, the wear of the switch during frequent use is effectively reduced, extending its service life.
[0021] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A one-piece injection-molded membrane switch, characterized in that, include: Connecting membrane (1); The outer wall of the wrapping device (2) is fixedly connected to the outer wall of the connecting film (1); The outer wall of the switch device (3) is fixedly connected to the inner wall of the wrapping device (2); The switching device (3) includes a connecting sleeve (31), the outer side wall of the connecting sleeve (31) is provided with a connecting groove (32), the inner side wall of the connecting sleeve (31) is fixedly connected with a compliant plate (33), the outer wall of the compliant plate (33) is fixedly connected with a circular plate (34), the bottom outer wall of the circular plate (34) is fixedly connected with a connecting disc (35), the bottom outer wall of the connecting disc (35) is fixedly connected with a movable column (37), and the outer wall of the movable column (37) is fitted with a compression spring (36).
2. The injection-molded integrated membrane switch according to claim 1, characterized in that: The outer wall of the top of the compression spring (36) is fixedly connected to the outer wall of the bottom of the connecting disc (35).
3. The injection-molded integrated membrane switch according to claim 1, characterized in that: The packaging device (2) includes a connecting plate (21), a movable hole (22) is provided in the wall of the connecting plate (21), a cover shell (23) is fixedly connected to the outer wall of the top of the connecting plate (21), a connecting ring (24) is fixedly connected to the side wall inside the cover shell (23), and a sloping groove (25) is provided on the outer wall of the connecting ring (24).
4. The injection-molded integrated membrane switch according to claim 3, characterized in that: The side wall of the connecting plate (21) is fixedly connected to the inner wall of the connecting membrane (1).
5. The injection-molded integrated membrane switch according to claim 3, characterized in that: The inner wall of the connecting plate (21) is slidably connected to the outer wall of the movable column (37) through the movable hole (22), and the outer wall of the top of the connecting plate (21) is fixedly connected to the outer wall of the bottom of the compression spring (36).
6. The injection-molded integrated membrane switch according to claim 3, characterized in that: The outer wall of the connecting ring (24) is fixedly connected to the outer wall of the connecting sleeve (31) through the inclined groove (25), and the outer wall of the connecting sleeve (31) is fixedly connected to the outer wall of the cover shell (23) through the connecting groove (32).