CN204011191U - Thin film switch - Google Patents
Thin film switch Download PDFInfo
- Publication number
- CN204011191U CN204011191U CN201320548892.XU CN201320548892U CN204011191U CN 204011191 U CN204011191 U CN 204011191U CN 201320548892 U CN201320548892 U CN 201320548892U CN 204011191 U CN204011191 U CN 204011191U
- Authority
- CN
- China
- Prior art keywords
- metal clips
- thin film
- air flue
- film switch
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of thin film switch, comprise the metal clips being placed on PCB wiring board, on described metal clips, be coated with PET film, between described PET film and described PCB wiring board, be provided with air flue partition, on described air flue partition, have the through hole that holds described metal clips, between the hole wall of described through hole and the periphery of described metal clips, form air flue; On described air flue partition, between adjacent two described through holes, have air drain.The utility model is provided with air flue at the periphery of metal clips, and metal clips is not contacted with external environment completely, can avoid being subject to the interference of external environment factor, ensures the normal operation of thin film switch function, improves its useful life; The air drain arranging on air flue partition can make an air in thin film switch enter another thin film switch, ensures that Air Flow is more unimpeded.
Description
Technical field
The utility model relates to appliance switch, specifically a kind of thin film switch.
Background technology
Thin film switch is a kind of common appliance switch.As shown in Figure 1, it comprises the metal clips 2 being placed on PCB wiring board 4 and covers the PET film 1 on metal clips 2, on PET film 1, has pore 3 corresponding to the position of metal clips 2 peripheries the structure of existing a kind of thin film switch.As shown in Figure 2, metal clips 2 is extruding downwards under the effect of external force, and the air in metal clips 2 is directly discharged extraneous by the pore 3 on PET film 1.
The thin film switch of said structure, owing to having pore 3 on PET film 1, thin film switch is inner directly to communicate with the external world, and the factor that is easy to be subject to external environment impacts the quality of thin film switch.This impact is mainly manifested in: 1, the dust in the external world, dirtyly easily enter metal clips 2 by pore 3, not conducting when metal clips 2 is contacted with PCB wiring board 4, causes defunctionalization; For example, the in the situation that 2, or relative salt fog larger in humidity being more (using in marine environment), easily cause the metal clips 2 of thin film switch to get rusty, both reduce the useful life of thin film switch, also easily caused the forfeiture (not playing conducting effect) of switching function.
Summary of the invention
The utility model, for the problems referred to above, provides a kind of thin film switch that be not affected by the external environment, reliable in function.
According to the technical solution of the utility model: a kind of thin film switch, comprise the metal clips being placed on PCB wiring board, on described metal clips, be coated with PET film, between described PET film and described PCB wiring board, be provided with air flue partition, on described air flue partition, have the through hole that holds described metal clips, between the hole wall of described through hole and the periphery of described metal clips, form air flue.
On described air flue partition, between adjacent two described through holes, have air drain.
Technique effect of the present utility model is: the utility model is provided with air flue at the periphery of metal clips, metal clips is not contacted with external environment completely, can avoid being subject to the interference of external environment factor, ensure the normal operation of thin film switch function, improve its useful life; The air drain arranging on air flue partition can make an air in thin film switch enter another thin film switch, ensures that Air Flow is more unimpeded.
Brief description of the drawings
Fig. 1 is the structural representation of existing thin film switch.
Fig. 2 is the venting principleand schematic diagram of existing thin film switch.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is venting principleand schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
In Fig. 1～Fig. 4, comprise PET film 1, metal clips 2, pore 3, PCB wiring board 4, air flue partition 5, air flue 6, through hole 7 etc.
As shown in Figure 3, the utility model is a kind of thin film switch, comprises the metal clips 2 being placed on PCB wiring board 4, is coated with PET film 1 on metal clips 2, between PET film 1 and PCB wiring board 4, is provided with air flue partition 5; On air flue partition 5, have the through hole 7 that holds metal clips 2, between the hole wall of through hole 7 and the periphery of metal clips 2, form air flue 6.
As shown in Figure 4, metal clips 2 is subject to external force and pushes downwards, and the air of metal clips 2 inside all drains in air flue 6, and metal clips 2 and PCB wiring board 4 are connected, and completes the function of thin film switch.
On air flue partition 5, between adjacent two through holes 7, have air drain, the air flue 6 of two adjacent thin film switches is connected.In the time of one of them thin film switch of operation, the air in this thin film switch can enter by air drain the air flue 6 of another thin film switch, can ensure that Air Flow is more unimpeded.
The utility model is provided with air flue 6 at the periphery of metal clips 2, on PET film 1, without offering pore, metal clips 2 does not contact with external environment completely, can avoid being subject to the interference of external environment factor, ensure the normal operation of thin film switch function, improve its useful life.
Structure of the present utility model, can utilize joint tool film coating operation automatically, thereby raise the efficiency and quality.
Claims (1)
1. a thin film switch, comprise the metal clips (2) being placed on PCB wiring board (4), on described metal clips (2), be coated with PET film (1), it is characterized in that: between described PET film (1) and described PCB wiring board (4), be provided with air flue partition (5), on described air flue partition (5), have the through hole (7) that holds described metal clips (2), between the hole wall of described through hole (7) and the periphery of described metal clips (2), form air flue (6); Between upper adjacent two the described through holes of described air flue partition (5) (7), have air drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320548892.XU CN204011191U (en) | 2013-09-05 | 2013-09-05 | Thin film switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320548892.XU CN204011191U (en) | 2013-09-05 | 2013-09-05 | Thin film switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011191U true CN204011191U (en) | 2014-12-10 |
Family
ID=52051152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320548892.XU Expired - Fee Related CN204011191U (en) | 2013-09-05 | 2013-09-05 | Thin film switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204011191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036926A (en) * | 2017-06-09 | 2018-12-18 | 致伸科技股份有限公司 | Keyboard |
-
2013
- 2013-09-05 CN CN201320548892.XU patent/CN204011191U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036926A (en) * | 2017-06-09 | 2018-12-18 | 致伸科技股份有限公司 | Keyboard |
| CN109036926B (en) * | 2017-06-09 | 2020-07-10 | 致伸科技股份有限公司 | Keyboard with a keyboard body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |