An antistatic membrane switch
By designing an antistatic layer structure in the film switch, adding shrapnel and conductive silver paste, and adding shielding wiring, the problem of insufficient antistatic effect and feel of the film switch is solved, and better antistatic performance and touch experience is achieved.
Patent Information
- Application Number
- CN202420838481.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing film switches have shortcomings in antistatic effects and feel, and cannot meet the high user requirements for the user's interface.
An antistatic film switch was designed. By adding glue between the panel and the circuit layer, setting the key hull, shrapnel and conductive silver paste, and setting a waterproof frame between the surface key layer and the bottom glue layer, adding a circle of shielded wiring and a combination of large and small shrapnels to be used with the gasket.
It significantly improves the anti-static effect and improves the touch of the hand, making the membrane switch more durable and comfortable during use.
Smart Images
Figure CN222734860U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a membrane switch, in particular to an antistatic membrane switch with good antistatic effect and good hand touch. Background Art
[0002] Customers' design requirements for user interfaces are constantly changing and improving. They are not limited to the realization of functions, but also require a more fashionable appearance, a more novel touch, and higher requirements for the feel, appearance, life and durability of buttons. The common membrane switches on the market have certain limitations in installation: poor anti-static effect and average touch. Utility Model Content
[0003] In view of the above problems, the main purpose of the utility model is to provide an antistatic membrane switch with good antistatic effect and good hand touch.
[0004] The utility model solves the above technical problems through the following technical solutions: an antistatic membrane switch, characterized in that the antistatic membrane switch comprises, from top to bottom, a panel, a surface key layer, an upper circuit layer, a line key layer, a lower circuit layer, and a bottom glue layer.
[0005] In the panel, the surface key layer, the upper circuit layer, the line key layer, and the lower circuit layer, the adjacent layers are glued together, and the bottom glue layer is attached to the back of the lower circuit layer.
[0006] The surface of the panel is provided with key convex bumps, the surface key layer is provided with surface key layer holes, the line key layer is provided with wire key layer holes, the upper circuit layer is provided with upwardly protruding springs, and the lower circuit layer is provided with conductive silver paste. The conductive silver paste, springs, wire key layer holes and key convex bumps are located in the same vertical position.
[0007] A waterproof frame is provided between the surface key layer and the bottom glue layer of the antistatic membrane switch.
[0008] A circle of shielded wiring is provided around the back of the panel.
[0009] In a specific implementation example of the present utility model, a gasket is arranged directly below the spring sheet, and the gasket is fixed directly below the spring sheet by using glue.
[0010] In a specific implementation example of the present utility model, the height range of the button convex hull is: 0.3-0.7mm.
[0011] In a specific implementation example of the present utility model, a circle of shielded wiring is a ring structure made of closed silver paste.
[0012] In a specific implementation example of the present invention, the width of the annular structure ranges from 1.0 to 2.5 mm.
[0013] In a specific implementation example of the present utility model, the spring pieces include large spring pieces and small spring pieces, the middle button uses the large spring piece, and the surrounding buttons use the small spring pieces.
[0014] In a specific implementation example of the utility model, the diameter range of the large spring piece is: 8-15mm, and the diameter range of the small spring piece is: 4-8mm.
[0015] In a specific implementation example of the present utility model, the thickness of the panel ranges from 0.10 to 0.20 mm.
[0016] In a specific implementation example of the present utility model, the thickness range of the surface key layer is: 0.08-0.15mm.
[0017] In a specific implementation example of the present utility model, the thickness of the wire bond layer ranges from 0.20 to 0.25 mm.
[0018] The positive progress effect of the utility model is that the antistatic membrane switch proposed by the utility model adds a circle of shielded wiring, has a good antistatic effect, and the use of large and small shrapnel with gaskets makes the hand feel better during use of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the interlayer structure of the utility model.
[0020] Figure 2 It is a front schematic diagram of the utility model.
[0021] Figure 3 It is a schematic diagram of the back side of the utility model.
[0022] The following are the names corresponding to the label numbers in this utility model:
[0023] Panel 1, surface key layer 2, upper circuit layer 3, wire key layer 4, lower circuit layer 5, bottom glue layer 6, key bump 7, spring 8, gasket 9, conductive silver paste 10, waterproof frame 11, surface key layer hole 12, large spring 13, small spring 14, wire key layer hole 15, wiring 16. DETAILED DESCRIPTION
[0024] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solution of the present invention in detail.
[0025] Figure 1 It is a schematic diagram of the interlayer structure of the utility model. Figure 2 It is a front schematic diagram of the utility model. Figure 3 It is a schematic diagram of the back side of the utility model.
[0026] like Figure 1-3As shown: an antistatic membrane switch proposed by the utility model, the antistatic membrane switch is composed of, from top to bottom: a panel 1, a surface key layer 2, an upper circuit layer 3, a wire key layer 4, a lower circuit layer 5, and a bottom glue layer 6; in the panel 1, the surface key layer 2, the upper circuit layer 3, the wire key layer 4, and the lower circuit layer 5, adjacent layers are glued together, and the bottom glue layer 6 is attached to the back of the lower circuit layer 5; a key convex bulge 7 is arranged on the surface of the panel 1, a surface key layer hole 12 is arranged on the surface key layer 2, a wire key layer hole 15 is arranged on the wire key layer 4, an upwardly protruding spring 8 is arranged on the upper circuit layer 3, and a conductive silver paste 10 is arranged on the lower circuit layer 5, the conductive silver paste 10, the spring 8, the wire key layer hole 15, and the key convex bulge 7 are located in the same vertical position, and a waterproof frame 11 is arranged between the surface key layer 2 and the bottom glue layer 6 of the antistatic membrane switch.
[0027] In order to make the present application have a good touch, a gasket 9 is arranged just below the spring sheet in the present invention, and the gasket 9 is fixed just below the spring sheet 8 by glue.
[0028] The height range of the button convex bump 7 in the utility model can be selected as: 0.3-0.7mm, and the width range of the annular structure can be selected as: 1.0-2.5mm.
[0029] Figure 2 It is a front schematic diagram of the utility model, such as Figure 2 As shown: the shrapnel 8 in the utility model includes a large shrapnel 13 and a small shrapnel 14, the large shrapnel is used for the middle button, and the small shrapnel is used for the surrounding buttons. In the specific implementation process, the diameter range of the large shrapnel 13 can be selected as: 8-15mm, and the diameter range of the small shrapnel 14 can be selected as: 4-8mm. The design of the large shrapnel 13 and the small shrapnel 14 makes the touch of the hand more uniform when touching the button.
[0030] Figure 3 It is a schematic diagram of the back side of the utility model. Figure 3 As shown: the utility model designs a circle of circuits on the front silver paste circuit, specifically, a circle of shielded wiring 16 is arranged around the back of the panel 1. In the specific implementation process, the circle of shielded wiring is a ring structure made of closed silver paste. After on-site testing, the antistatic performance of the product has been improved from the original 5KV to 8KV.
[0031] In the specific implementation process, the thickness range of the panel 1 in the utility model can be selected as: 0.10-0.20mm; the thickness range of the surface key layer 2 can be selected as: 0.08-0.15mm; the thickness range of the line key layer 4 can be selected as: 0.20-0.25mm. The above data can also select other parameters according to the requirements of the site.
[0032] The utility model adds a circle of shielded wiring, which has a good antistatic effect. The use of large and small spring pieces in conjunction with the gasket 9 makes the hand feel better during the use of the utility model.
[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An antistatic membrane switch, characterized in that: The antistatic membrane switch comprises, from top to bottom, a panel, a surface key layer, an upper circuit layer, a line key layer, a lower circuit layer, and a bottom glue layer; In the panel, the surface key layer, the upper circuit layer, the line key layer, and the lower circuit layer, the adjacent layers are glued together, and the bottom glue layer is attached to the back of the lower circuit layer; The surface of the panel is provided with a key convex package, the surface key layer is provided with a surface key layer hole, the line key layer is provided with a line key layer hole, the upper circuit layer is provided with an upwardly protruding spring sheet, and the lower circuit layer is provided with a conductive silver paste. The conductive silver paste, spring sheet, line key layer hole, and key convex package are located at the same vertical position. A waterproof frame is provided between the surface key layer and the bottom glue layer of the antistatic membrane switch; A circle of shielded wiring is provided around the back of the panel.
2. The antistatic membrane switch according to claim 1, characterized in that: A gasket is arranged just below the shrapnel, and the gasket is fixed just below the shrapnel by glue.
3. The antistatic membrane switch according to claim 1, characterized in that: The height range of the button convex bump is: 0.3-0.7mm.
4. The antistatic membrane switch according to claim 1, characterized in that: A circle of shielded wiring is a closed ring structure made of silver paste.
5. The antistatic membrane switch according to claim 4, characterized in that: The width of the ring structure ranges from 1.0-2.5 mm.
6. The antistatic membrane switch according to claim 1, characterized in that: The shrapnel includes a large shrapnel and a small shrapnel. The large shrapnel is used for the middle button and the small shrapnel is used for the surrounding buttons.
7. The antistatic membrane switch according to claim 1, characterized in that: The diameter range of the large shrapnel is: 8-15mm, and the diameter range of the small shrapnel is: 4-8mm.
8. The antistatic membrane switch according to claim 1, characterized in that: The thickness range of the panel is: 0.10-0.20mm.
9. The antistatic membrane switch according to claim 1, characterized in that: The thickness range of the surface key layer is: 0.08-0.15mm.
10. The antistatic membrane switch according to claim 1, characterized in that: The thickness range of the wire bond layer is: 0.20-0.25mm.