Membrane switch with high sensitivity
By adding elastic parts in the film switch, reducing the pressing stroke and providing rebound force, the problems of insufficient sensitivity and low operating efficiency of traditional film switches are solved, and a film switch with high sensitivity and efficient operation is achieved.
Patent Information
- Application Number
- CN202420755207.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The traditional thin film switch panel layer is relatively thick and requires greater force to press. Frequent use may have adverse effects on the fingers. At the same time, the downward stroke is too large, resulting in insufficient pressing during rapid operation, which reduces operating efficiency.
A film switch with high sensitivity is designed to reduce the pressing stroke by increasing the elastic parts, and provide rebound force for the touch buttons, reduce rigidity and enhance the pressing feel.
It improves the sensitivity of the film switch, reduces the difficulty of operation, avoids frequent pressing to damage to fingers, and improves operating efficiency.
Smart Images
Figure CN222619613U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of membrane switches, in particular to a membrane switch with high sensitivity. Background Art
[0002] Membrane switch, also known as touch keyboard, adopts an overall sealed structure composed of a flat multi-layer combination. It is a new type of electronic component that integrates light, machinery and electricity, and seals the key switch, panel, mark, symbol display and lining together. It is a fundamental change in the appearance structure of electronic products. It can replace the keys of conventional discrete components and perform the tasks of the operating system more reliably. Membrane switch has good waterproof, dustproof, oil-proof, and anti-corrosion of harmful gases, stable and reliable performance, light weight, small size, long life, easy assembly, the panel can be washed without damage to the characters, rich colors, beautiful appearance and other advantages. It is widely used in electronic communications, electronic measurement instruments, industrial control, medical equipment, automotive industry, smart toys, household appliances and other fields.
[0003] As the application scope of membrane switches increases, the performance requirements for membrane switches are also increasing. Especially for some devices that require frequent operation, the following problems are common when using traditional membrane switches:
[0004] First, the panel layer of traditional membrane switches is generally thicker, requiring a certain amount of force to press, and frequent use may have adverse effects on fingers;
[0005] Secondly, in order to ensure the rebound force, the traditional membrane switch has a large downward stroke. When performing quick operations, it is easy to fail to press the switch properly, resulting in invalid operations and reducing the user's operating efficiency.
[0006] Therefore, in view of the deficiencies in the prior art, the utility model designs a membrane switch with high sensitivity to solve the above problems.
[0007] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solution of the utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the utility model. Utility Model Content
[0008] In order to overcome the above-mentioned deficiencies in the prior art, the utility model aims to provide a membrane switch with high sensitivity, which reduces the difficulty of operating the membrane switch by reducing the pressing stroke and softening the pressing part while ensuring the rebound ability.
[0009] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a membrane switch with high sensitivity, including a panel layer, a laminated adhesive layer, an elastic member, a conductive layer and a back adhesive layer, wherein:
[0010] The panel layer is provided with touch buttons for pressing operations;
[0011] The laminated adhesive layer is connected to the lower side of the panel layer, and is provided with a connecting through hole, which is used to bond the panel layer and the conductive layer together, and provides a pressing channel for the touch button through the connecting through hole;
[0012] The conductive layer is arranged below the laminated adhesive layer, and a conductive circuit is printed on the conductive layer. The conductive circuit is connected to the bottom of the elastic member to realize the on-off of the circuit.
[0013] The elastic member is in the shape of a round pancake, with the upper and lower ends connected to the touch button and the conductive circuit respectively. A pressing sheet is provided on the lower side of the top of the elastic member, and a pressing channel is provided on the bottom side of the elastic member, which can reduce the pressing stroke and provide rebound support force for the touch button.
[0014] The back adhesive layer is connected to the lower side of the conductive layer.
[0015] The preferred technical solution is: a hollow hole is provided on the elastic member, and the hollow hole and the outer periphery of the elastic member form a spider web structure.
[0016] The preferred technical solution is that the pressing sheet is connected to the top of the elastic member via a pressing rod.
[0017] The preferred technical solution is that the pressing sheet and the pressing rod are integrally formed, and the bottom of the pressing sheet is printed with conductive ink or conductive silver paste.
[0018] The preferred technical solution is that the cross section of the compression rod is cross-shaped.
[0019] The preferred technical solution is that anti-slip grooves are provided at the lower end of the outer circumference of the pressing channel.
[0020] The preferred technical solution is that the top of the elastic member is conformally fitted to the bottom of the touch button.
[0021] The preferred technical solution is: the panel layer is made of flexible material, and the thickness of the touch button is between 0.10 mm and 0.15 mm.
[0022] Due to the application of the above-mentioned technical scheme, the utility model provides a membrane switch with high sensitivity, which adds an elastic part between the touch button and the conductive circuit, and uses the elastic part to reduce the pressing stroke of the touch button, thereby improving the pressing sensitivity. At the same time, the flexibility of the touch button is increased and the elastic part is used to provide rebound force for the touch button, thereby reducing the rigidity of the touch button, improving the pressing feel, and avoiding damage to fingers during frequent pressing operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the structure of a membrane switch with high sensitivity according to the utility model;
[0024] Figure 2 It is a structural schematic diagram of the elastic member in the utility model;
[0025] Figure 3 It is a longitudinal cross-sectional view of the elastic member in the utility model.
[0026] In the above drawings, 1, panel layer; 11, touch button; 2, laminated adhesive layer; 21, connecting through hole; 3, elastic member; 31, pressing sheet; 32, pressing channel; 32a, anti-slip pattern; 33, hollow hole; 34, pressure rod; 4, conductive layer; 41, conductive circuit; 5, adhesive layer. DETAILED DESCRIPTION
[0027] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0028] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] like Figure 1As shown, the utility model discloses a membrane switch with high sensitivity, including a panel layer 1, a laminated adhesive layer 2, an elastic member 3, a conductive layer 4 and a back adhesive layer 5. The main components of the utility model are described in detail below:
[0031] like Figure 1 As shown, the panel layer 1 is provided with a touch button 11, the panel layer 1 is made of a flexible material, and the thickness of the touch button 11 is 0.10 mm, which reduces the rigidity of the touch button 11 and prevents the touch button 11 from causing damage to the finger when repeatedly pressed. It should be noted that the above structure is merely exemplary and not restrictive. In this embodiment, the panel layer 1 is made of a flexible material, but in other embodiments, the panel layer 1 may be made of a non-flexible material.
[0032] like Figure 1 As shown, the laminated adhesive layer 2 is disposed between the panel layer 1 and the conductive layer 4 for bonding and fixing the panel layer 1 and the conductive layer 4, and is provided with a connecting through hole 21 for the touch button 11 to press through.
[0033] like Figure 1 As shown, the conductive layer 4 is arranged below the laminated adhesive layer 2, and a conductive circuit 41 is printed thereon for controlling the on and off of the circuit.
[0034] like Figure 1 and Figure 2 As shown, the elastic member 3 is in the shape of a round cake and is arranged in the connecting through hole 21. The top of the elastic member 3 is contoured to fit the lower side of the touch button 11. A pressing channel 32 is provided on the bottom side of the elastic member 3. The pressing channel 32 is arranged corresponding to the conductive circuit 41. The lower end of the outer periphery of the pressing channel 32 is provided with an anti-slip pattern 32a. This design structure is stable and has a good rebound effect after pressing.
[0035] like Figure 1 and Figure 2 As shown, the elastic member 3 is provided with hollow holes 33, and the hollow holes 33 and the outer periphery of the elastic member 3 form a spider web structure, which can promptly discharge the internal gas when pressed quickly to avoid the compressed gas from hindering the pressing. At the same time, the spider web structure has good contraction performance during pressing and stable rebound.
[0036] like Figure 1 and Figure 3 As shown, an integrally formed pressing sheet 31 and a pressing rod 34 are provided on the lower side of the top of the elastic member 3. The pressing sheet 31 is connected to the top of the elastic member 3 via the pressing rod 34. The cross-section of the pressing rod 34 is cross-shaped. The bottom of the pressing sheet 31 is printed with conductive ink or conductive silver paste, which can reduce the pressing stroke and improve the pressing sensitivity. It should be noted that in this embodiment, the bottom of the pressing sheet 31 is printed with conductive ink or conductive silver paste, but in other embodiments, the pressing sheet 31 can directly use conductive material without printing conductive circuits on the surface.
[0037] like Figure 1 As shown, the adhesive layer 5 is connected to the lower side of the conductive layer 4 and is used to adhere and fix the membrane switch to the device or the wall.
[0038] In summary, the utility model discloses a membrane switch with high sensitivity, which solves the problem of insufficient sensitivity of traditional membrane switches by adding elastic parts. The design has a simple structure, low production cost and strong practicality.
[0039] The above embodiment provided by the utility model is only an example of the principle and effect of the utility model, and is not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiment without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.
Claims
1. A membrane switch with high sensitivity, characterized in that: include: A panel layer (1), wherein the panel layer (1) is provided with a touch button (11); A laminated adhesive layer (2), the laminated adhesive layer (2) being connected to the lower side of the panel layer (1) and having a connecting through hole (21); An elastic member (3), the elastic member (3) being in the shape of a round pancake and arranged below the touch button (11), a pressing sheet (31) being provided on the lower side of the top of the elastic member (3), and a pressing channel (32) being provided on the bottom side of the elastic member (3); A conductive layer (4), the conductive layer (4) being arranged below the laminated adhesive layer (2), and having a conductive circuit (41) printed thereon, the conductive circuit (41) being connected to the bottom of the elastic member (3); A back adhesive layer (5), the back adhesive layer (5) being connected to the lower side of the conductive layer (4).
2. A membrane switch with high sensitivity according to claim 1, characterized in that: The elastic member (3) is provided with hollow holes (33), and the hollow holes (33) and the outer periphery of the elastic member (3) form a spider web structure.
3. The membrane switch with high sensitivity according to claim 1, characterized in that: The pressing sheet (31) is connected to the top of the elastic member (3) via a pressing rod (34).
4. A membrane switch with high sensitivity according to claim 3, characterized in that: The pressing sheet (31) and the pressing rod (34) are integrally formed, and the bottom of the pressing sheet (31) is printed with conductive ink or conductive silver paste.
5. The membrane switch with high sensitivity according to claim 3, characterized in that: The cross section of the pressure rod (34) is cross-shaped.
6. The membrane switch with high sensitivity according to claim 1, characterized in that: The lower end of the outer periphery of the pressing channel (32) is provided with an anti-slip pattern (32a).
7. The membrane switch with high sensitivity according to claim 1, characterized in that: The top of the elastic member (3) is conformally fitted to the bottom of the touch button (11).
8. The membrane switch with high sensitivity according to claim 1, characterized in that: The panel layer (1) is made of flexible material, and the thickness of the touch button (11) is between 0.10 mm and 0.15 mm.