CN203706979U - Elastic sheet type capacitor touch thin film switch - Google Patents
Elastic sheet type capacitor touch thin film switch Download PDFInfo
- Publication number
- CN203706979U CN203706979U CN201320893299.9U CN201320893299U CN203706979U CN 203706979 U CN203706979 U CN 203706979U CN 201320893299 U CN201320893299 U CN 201320893299U CN 203706979 U CN203706979 U CN 203706979U
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- Prior art keywords
- thin film
- layer
- film switch
- key
- lamella
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- Expired - Fee Related
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- Electronic Switches (AREA)
Abstract
The utility model discloses an elastic sheet type capacitor touch thin film switch comprising a face board layer, an induction electrode layer, a first key sheet layer, a line layer and a bottom rubber layer that are orderly arranged in a top-to-bottom manner. Capacitor induction electrodes are distributed on the induction electrode layer, and a second key sheet layer is arranged between the face board layer and the induction electrode layer. Positions, corresponding to the capacitor induction electrodes, of the second key sheet layer are provided with press key holes, and metal elastic sheets are arranged in the press key holes. The elastic sheet type capacitor touch thin film switch is characterized in that many limitations of a common capacitor thin film switch are overcome; compared with the common capacitor thin film switch, the elastic sheet type capacitor touch thin film switch is advantaged by good anti-interference capability, suitability for special work environment, and hand feel function of a traditional thin film switch.
Description
Technical field
The utility model belongs to membrane switch technology field, relates in particular to a kind of capacitance touch thin film switch.
Background technology
Client constantly changing, improving, is not only confined to the realization of function to the designing requirement of user interface, and to appearance requirement also fashion more, sense of touch is more novel, and push button longevity and durability are also proposed to higher requirement etc.Thin film switch adopts capacitance touching control induction technology as a kind of new-type input mode, has possessed above advantage.But current capacitance touch thin film switch has certain limitation:
1. inapplicable in the operational environment with metal covering.
2. use under radiation or noise circumstance, interference free performance is poor, needs special software.
3. the in the situation that of water or the existence of other pollutants, key induced function is poor.
4. wear in glove operational environment at needs, the inductive effects of standard capacitor formula touch-control system is poor.
5. capacitance touch thin film switch is plane formula, and feel is poor.
Utility model content
For this reason, technical problem to be solved in the utility model is to provide a kind of spring-piece type capacitance touch thin film switch that overcomes above-mentioned defect, the deficiency existing to overcome prior art.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of spring-piece type capacitance touch thin film switch, it is followed successively by panel layer, induction electrode layer, first key lamella, line layer and primer layer from top to bottom, on described induction electrode layer, be distributed with capacitive sensing electrode, it is characterized in that: between described panel layer and induction electrode layer, be provided with the second key lamella, the position of the corresponding capacitive sensing electrode of described the second key lamella has key hole, the metal clips of placing in described key hole.
In embodiment of the present utility model, described induction electrode layer is formed by the silver of printing conductive on PET film slurry.
Described first key lamella, the second key lamella and described primer layer are double faced adhesive tape.
Adopt technique scheme, when use, capacitive sensing electrode is connected with induction IC by lead-out wire.Between capacitive sensing electrode and metal clips, the earth, there is certain parasitic capacitance, in the time of finger presses metal clips, metal clips generation deformation, electric capacity increases, and induction IC shortens the capacitor charging time of capacitive sensing electrode, will recognize actuation of keys.Induction IC is the variable quantity that causes inductance capacitance by the deformation of detecting metal clips, realizes the recognition function to actuation of keys.
So, the utility model has been broken through the above-mentioned limitation of common capacitor thin film switch, make the relatively common capacitor thin film switch of spring-piece type capacitance touch thin film switch there is antijamming capability better, can be useful in better under particular job environment, and take into account the feel function of conventional films switch.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
Fig. 1 is structural representation of the present utility model.
In figure:
101-panel layer, 102-the second key lamella, 103-induction electrode layer, 105-first key lamella, 106-line layer, 107-primer layer, 109-metal clips.
Embodiment
As shown in Figure 1, spring-piece type capacitance touch thin film switch of the present utility model, it is followed successively by panel layer 101, the second key lamella 102, induction electrode layer 103, first key lamella 105, line layer 106 and primer layer 107 from top to bottom.On induction electrode layer 103, be distributed with capacitive sensing electrode, the position of the corresponding capacitive sensing electrode of the second key lamella 102 has key hole, the metal clips 109 of placing in key hole.
Wherein, induction electrode layer 103 is formed by the silver of printing conductive on PET film slurry.First key lamella, the second key lamella and described primer layer are double faced adhesive tape.
The utility model adopts said structure, and when use, capacitive sensing electrode is connected with induction IC by lead-out wire.Between capacitive sensing electrode and metal clips, the earth, there is certain parasitic capacitance, in the time of finger presses metal clips, metal clips generation deformation, electric capacity increases, and induction IC shortens the capacitor charging time of capacitive sensing electrode, will recognize actuation of keys.Induction IC is the variable quantity that causes inductance capacitance by the deformation of detecting metal clips, realizes the recognition function to actuation of keys.
So, the utility model has been broken through the above-mentioned limitation of common capacitor thin film switch, make the relatively common capacitor thin film switch of spring-piece type capacitance touch thin film switch there is antijamming capability better, can be useful in better under particular job environment, and take into account the feel function of conventional films switch.
But; those skilled in the art will recognize that; above-mentioned embodiment is exemplary; in order better to make those skilled in the art can understand this patent; can not be interpreted as it is the restriction to this patent protection range; as long as any being equal to done according to spirit that this patent discloses changes or modify, all fall into the scope of this patent protection.
Claims (3)
1. a spring-piece type capacitance touch thin film switch, it is followed successively by panel layer, induction electrode layer, first key lamella, line layer and primer layer from top to bottom, on described induction electrode layer, be distributed with capacitive sensing electrode, it is characterized in that: between described panel layer and induction electrode layer, be provided with the second key lamella, the position of the corresponding capacitive sensing electrode of described the second key lamella has key hole, the metal clips of placing in described key hole.
2. spring-piece type capacitance touch thin film switch according to claim 1, is characterized in that: described induction electrode layer is formed by the silver of printing conductive on PET film slurry.
3. spring-piece type capacitance touch thin film switch according to claim 1 and 2, is characterized in that: described first key lamella, the second key lamella and described primer layer are double faced adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893299.9U CN203706979U (en) | 2013-12-31 | 2013-12-31 | Elastic sheet type capacitor touch thin film switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893299.9U CN203706979U (en) | 2013-12-31 | 2013-12-31 | Elastic sheet type capacitor touch thin film switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706979U true CN203706979U (en) | 2014-07-09 |
Family
ID=51057379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893299.9U Expired - Fee Related CN203706979U (en) | 2013-12-31 | 2013-12-31 | Elastic sheet type capacitor touch thin film switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706979U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836563A (en) * | 2015-04-27 | 2015-08-12 | 青岛歌尔声学科技有限公司 | Key, terminal device and method for determining stroke of key |
| CN109450428A (en) * | 2018-12-29 | 2019-03-08 | 无锡市科虹标牌有限公司 | Capacitive touch switch with metal material |
| CN109802668A (en) * | 2019-02-26 | 2019-05-24 | 上海经世电子有限公司 | A kind of soft-touch control of half shading of window |
-
2013
- 2013-12-31 CN CN201320893299.9U patent/CN203706979U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836563A (en) * | 2015-04-27 | 2015-08-12 | 青岛歌尔声学科技有限公司 | Key, terminal device and method for determining stroke of key |
| CN104836563B (en) * | 2015-04-27 | 2018-07-31 | 青岛歌尔声学科技有限公司 | A kind of button, a kind of terminal device and the method for determining key stroke |
| CN109450428A (en) * | 2018-12-29 | 2019-03-08 | 无锡市科虹标牌有限公司 | Capacitive touch switch with metal material |
| CN109802668A (en) * | 2019-02-26 | 2019-05-24 | 上海经世电子有限公司 | A kind of soft-touch control of half shading of window |
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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: 20140709 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |