CN217902963U - Adopt flexible circuit board's membrane switch - Google Patents
Adopt flexible circuit board's membrane switch Download PDFInfo
- Publication number
- CN217902963U CN217902963U CN202220187542.4U CN202220187542U CN217902963U CN 217902963 U CN217902963 U CN 217902963U CN 202220187542 U CN202220187542 U CN 202220187542U CN 217902963 U CN217902963 U CN 217902963U
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- China
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- circuit board
- flexible circuit
- panel
- membrane switch
- front surface
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Abstract
The utility model relates to a membrane switch, adopt flexible circuit board's membrane switch specifically says so. It includes a flexible circuit board and a panel. Two elastic keys are symmetrically arranged on the front face of the flexible circuit board, and a back glue layer covers the lower board face of the flexible circuit board. The panel covers the front surface of the flexible circuit board. It is characterized in that the periphery of the back glue layer is provided with an annular convex edge extending outwards. The upper surface of the annular convex edge is provided with a sealing ring arranged along the circumferential direction of the annular convex edge, and the front surface of the sealing ring is positioned above the highest point of the elastic key. The panel covers on the front of sealing washer, and is fixed sealed form between the front of panel back and sealing washer all around and is connected. By adopting the membrane switch, rainwater is not easy to enter, and the service life is longer.
Description
Technical Field
The utility model relates to a membrane switch, the membrane switch who adopts flexible circuit board that possesses waterproof function specifically says so.
Background
The membrane switch is also called a touch keyboard, adopts an integral sealing structure formed by combining a plurality of layers of planes, and is a light-collecting, mechanical and electrical integrated electronic component which seals a key switch, a panel, a mark, a symbol display and a lining board together. The display instrument of the electric moped is also provided with a membrane switch.
At present, the membrane switch of traditional electric bicycle includes flexible circuit board, and flexible circuit board's front symmetry is provided with two elasticity buttons, has on flexible circuit board's the lower face to cover and has stamped the gum layer. The upper part of the elastic key is provided with a surface. The electric elements of the membrane switch are all arranged on the flexible circuit board. Due to the existence of the elastic keys, a gap needs to be reserved between the flexible circuit board and the panel. When the film is used in rainy days, rainwater easily permeates into the flexible circuit board from the gap between the panel and the flexible circuit board, the flexible circuit board is easily damaged by short circuit, and the service life is short.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an adopt flexible circuit board's membrane switch, adopt this membrane switch rainwater difficult entering, life is longer.
In order to solve the problems, the following technical scheme is provided:
the utility model discloses an adopt membrane switch of flexible circuit board includes flexible circuit board and panel. Two elastic keys are symmetrically arranged on the front surface of the flexible circuit board, and a back glue layer covers the lower surface of the flexible circuit board. The panel covers the front surface of the flexible circuit board. It is characterized in that the periphery of the back glue layer is provided with an annular convex edge extending outwards. The upper surface of the annular convex edge is provided with a sealing ring arranged along the circumferential direction of the annular convex edge, and the front surface of the sealing ring is positioned above the highest point of the elastic key. The panel covers on the front of sealing washer, and is fixed sealed form between the front of panel back and sealing washer all around and is connected.
The periphery of the outer peripheral surface of the protection plate is abutted against the periphery of the inner circular surface of the sealing ring, and the front surface of the protection plate is flush with the front surface of the sealing ring. The front of protection shield is covered with the bed course, there is the position mouth of letting in the position department that the elasticity button corresponds the bed course, the panel covers on the bed course.
The cushion layer is an adhesive layer.
The panel is provided with an upward bulge at the position corresponding to the elastic key.
The panel is a silica gel plate.
The elastic key is a stainless steel key.
By adopting the scheme, the method has the following advantages:
because the utility model discloses an adopt flexible circuit board's membrane switch's gum layer have the annular chimb that outwards stretches out all around, have along the sealing washer that its circumference was arranged on the upper surface of annular chimb, the front of sealing washer is located the top of elasticity button peak, and the panel covers on the front of sealing washer, and the panel back all around with the front of sealing washer between be fixed sealing form and be connected. The membrane switch adopts the sealing ring to seal the gap between the panel and the membrane switch, thereby ensuring that rainwater cannot permeate, ensuring that the flexible circuit board cannot be short-circuited by water inlet, and greatly prolonging the service life of the membrane switch.
Drawings
Fig. 1 is a schematic structural diagram of a membrane switch using a flexible circuit board according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the membrane switch using the flexible circuit board of the present invention includes a flexible circuit board 9 and a panel 2. The panel 2 is a silica gel plate. Two elastic keys 7 are symmetrically arranged on the front surface of the flexible circuit board 9. The elastic keys 7 are stainless steel keys. The lower plate surface of the flexible circuit board 9 is covered with a back glue layer 8. The panel 2 is covered on the front side of the flexible circuit board 9. And an annular convex edge 10 extending outwards is arranged around the gum layer 8. The upper surface of the annular convex edge 10 is provided with a sealing ring 1 arranged along the circumferential direction of the annular convex edge, and the front surface of the sealing ring 1 is positioned above the highest point of the elastic key 7. The panel 2 covers on the front of sealing washer 1, and is connected between the front of the sealing washer 1 and the periphery of the panel 2 back and is fixed sealed.
A protection plate 5 is arranged above the flexible circuit board 9, the periphery of the outer peripheral surface of the protection plate 5 is abutted against the periphery of the inner circular surface of the sealing ring 1, and the front surface of the protection plate 5 is flush with the front surface of the sealing ring 1. The front of protection shield 5 coats and is stamped bed course 4, there is the mouth of stepping down 6 in the position department that elastic key 7 corresponds bed course 4, panel 2 covers on bed course 4. The cushion layer 4 is an adhesive layer. The panel 2 is provided with an upward bulge 3 at the position corresponding to the elastic key 7.
The back adhesive layer 8 is formed by cutting an adhesive with the thickness of 0.13mm, and the model of the adhesive is 3M9495MP by a 3M company. The sealing ring 1 is made of PC material, and the thickness is 0.2mm. The protective layer is made of 6025ST material with a thickness of 0.05mm. The cushion layer 4 is made of 3M glue with the model of 3M9495MP and the thickness of 0.13mm by 3M company. The thickness of the fabric is 0.15mm.
Claims (6)
1. A membrane switch using a flexible circuit board comprises a flexible circuit board (9) and a panel (2); two elastic keys (7) are symmetrically arranged on the front surface of the flexible circuit board (9), and a back glue layer (8) covers the lower plate surface of the flexible circuit board (9); the panel (2) covers the front surface of the flexible circuit board (9); the adhesive tape is characterized in that the periphery of the back adhesive layer (8) is provided with an annular convex edge (10) extending outwards; the upper surface of the annular convex edge (10) is provided with a sealing ring (1) arranged along the circumferential direction of the annular convex edge, and the front surface of the sealing ring (1) is positioned above the highest point of the elastic key (7); the panel (2) covers the front surface of the sealing ring (1), and the periphery of the back surface of the panel (2) is connected with the front surface of the sealing ring (1) in a fixed sealing manner.
2. The membrane switch using the flexible circuit board according to claim 1, wherein a protection plate (5) is provided above the flexible circuit board (9), the periphery of the outer peripheral surface of the protection plate (5) abuts against the periphery of the inner peripheral surface of the sealing ring (1), and the front surface of the protection plate (5) is flush with the front surface of the sealing ring (1); the front of protection shield (5) coats and is stamped bed course (4), there is abdication mouth (6) elasticity button (7) position department corresponding bed course (4), panel (2) cover is on bed course (4).
3. The membrane switch using flexible circuit board according to claim 2, characterized in that said spacer (4) is an adhesive layer.
4. The membrane switch using flexible circuit board according to claim 1, wherein said panel (2) has an upward protrusion (3) at a position corresponding to the elastic button (7).
5. The membrane switch using flexible circuit board according to claim 1, wherein said face plate (2) is a silicone plate.
6. The membrane switch using flexible circuit board according to any of claims 1 to 3, characterized in that said elastic button (7) is a stainless steel button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220187542.4U CN217902963U (en) | 2022-01-24 | 2022-01-24 | Adopt flexible circuit board's membrane switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220187542.4U CN217902963U (en) | 2022-01-24 | 2022-01-24 | Adopt flexible circuit board's membrane switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217902963U true CN217902963U (en) | 2022-11-25 |
Family
ID=84106682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220187542.4U Active CN217902963U (en) | 2022-01-24 | 2022-01-24 | Adopt flexible circuit board's membrane switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217902963U (en) |
-
2022
- 2022-01-24 CN CN202220187542.4U patent/CN217902963U/en active Active
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