CN207068726U - One kind ensures the effective one side carbon film PCB buttons of flicking - Google Patents
One kind ensures the effective one side carbon film PCB buttons of flicking Download PDFInfo
- Publication number
- CN207068726U CN207068726U CN201720786869.2U CN201720786869U CN207068726U CN 207068726 U CN207068726 U CN 207068726U CN 201720786869 U CN201720786869 U CN 201720786869U CN 207068726 U CN207068726 U CN 207068726U
- Authority
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- China
- Prior art keywords
- carbon film
- extension
- pcb
- flicking
- pad
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- 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
It the utility model is related to a kind of guarantee effective one side carbon film PCB buttons of flicking, including pcb board, carbon film, metal clips, metal clips is arranged on carbon film, and carbon film includes concentric inner circle and outer toroid, outer toroid open up it is jagged, outside the extension of inner circle is by gap extension to outer toroid；Pad is arranged at extension, the cabling of pcb board is connected by pad with carbon film, can effectively solve the uneven use feel for influenceing metal clips of PCB buttons, and scratch the problems such as PCB keys flower causes button short circuit when flicking no signal and the use for a long time of guarantee metal clips, lifting operation includes, and ensure each pressing operation, have signal triggering, and extend the life-span of key flower.
Description
Technical field
Film key is the utility model is related to, ensures that the effective one side carbon film PCB of flicking is pressed more specifically to one kind
Key.
Background technology
Metal clips (metal dome, English metal dome), is made of stainless steel, is an important composition on switch
Part, by means of the conduction of metal clips, play a part of a high-quality switch between operator and product.Together
When, using the screen resilience (pressing rear self-return) of the stabilization of metal dome and the life-span of overlength, high-quality touch is provided to operator
Feel feedback.Metal clips is used in a significant points in the products such as thin film switch, microswitch, pcb board, plays electric conduction
The important function on road, when depressed, circuit will turn on, and after release, circuit will disconnect automatically.
The general stroke of film key is 0.13-0.30mm, and this stroke is influenceed by the key flower height on one side carbon film PCB
It is fairly obvious.Reality through being commonly encountered due to the influence of one side carbon film PCB button designs, causes height to differ in use
Cause, influence feel, the problems such as causing flicking no signal.
As shown in figure 1, in the one side carbon film PCB buttons of prior art, carbon film is cylindrical with closing using concentric inner circle
Ring, pad are arranged at the lower section of inner circle, then it is main the shortcomings that have two：
1st, usage time length easily causes carbon film to scratch, and so as to cause the cabling below carbon film to expose, causes button short-circuit；
2nd, limited by one side carbon technology, intermediate contact (i.e. inner circle) is uneven, when causing flicking, has felt to press
Lower button, function do not realize that Consumer's Experience effect is poor but.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided one kind solves metal clips in one side carbon film
Feel problem on PCB, and metal clips flicking are not turned on the effective one side carbon film PCB buttons of guarantee flicking of problem.
The technical solution of the utility model is as follows：
One kind ensures that the effective one side carbon film PCB buttons of flicking, including pcb board, carbon film, metal clips, metal clips are set
Put on carbon film, the carbon film of button includes concentric inner circle and outer toroid, and outer toroid opens up jagged, and the extension of inner circle passes through
Outside gap extension to outer toroid；Pad is arranged at extension, and the cabling of pcb board is connected by pad with carbon film.
Preferably, the extension of straight line is arranged at the center position of breach.
Preferably, square pad is arranged on breach.
Preferably, the width of extension is not more than 1.2mm, pad is located at the center position of extension, the width of pad
No more than 0.8mm.
Preferably, the internal diameter of outer toroid is less than 5mm, external diameter is more than 5mm；Interior diameter of a circle is not more than 3mm.
The beneficial effects of the utility model are as follows：
The key flower described in the utility model for ensureing the effective one side carbon film PCB buttons of flicking, carbon film include with one heart interior
Circle and outer toroid, outer toroid open up it is jagged, outside the extension of inner circle is by gap extension to outer toroid；Pad, which is arranged at, to be prolonged
Section is stretched, the cabling of pcb board is connected by pad with carbon film, can effectively solve the uneven influence metal clips of PCB buttons
Using feel, and scratching PCB keys flower when flicking no signal and the use for a long time of guarantee metal clips causes button short circuit etc. to be asked
Topic, lifting operation includes, and ensures each pressing operation, has signal triggering, and extend the life-span of key flower.
Brief description of the drawings
Fig. 1 is the structural representation of the key flower of the one side carbon film PCB buttons of prior art；
Fig. 2 is the structural representation of key flower of the present utility model；
Fig. 3 is Fig. 2 A-A schematic cross-sectional views (showing pcb board compared with Fig. 2 increases)；
In figure：11 be inner circle, and 12 be outer toroid, and 13 be breach, and 14 be extension, and 20 be metal clips, and 30 be pad, 40
It is pcb board.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model is not turned on to solve the problems, such as feel existing for prior art, metal clips flicking and for a long time
The problems such as using causing scuffing PCB key flowers to cause button short circuit, there is provided one kind ensures the effective one side carbon film PCB buttons of flicking,
As shown in Figure 2 and Figure 3, including pcb board 4, carbon film, metal clips 20, metal clips 20 are arranged on carbon film, the carbon film bag of button
Concentric inner circle 11 and outer toroid 12 are included, outer toroid 12 opens up jagged 13, and the extension 14 of inner circle 11 is extended by breach 13
To outside outer toroid 12；Pad 30 is arranged at extension 14, and the cabling of pcb board 4 is connected by pad 30 with carbon film.
Wherein, in order to obtain more stable performance, extension 14 is provided with straight line, pad 30 is arranged to square.Then straight line
Extension 14 be arranged at the center position of breach 13, square pad 30 is arranged on breach 13.
The present embodiment is the one side carbon film PCB buttons for 5mm oval metals shell fragment 20, in the present embodiment, extension
14 width is not more than 1.2mm, and pad 30 is located at the center position of extension 14, and the width of pad 30 is not more than 0.8mm.It is cylindrical
The internal diameter of ring 12 is less than 5mm, and external diameter is more than 5mm, ensures the outer of 5mm oval metals shell fragment 20 and can fall in outer toroid 12
In the range of；The diameter of inner circle 11 is not more than 3mm, that is, ensures also to ensure have during release with stable conduction property when pressing
There is good interrupting performance.
Above-described embodiment is intended merely to illustrate the utility model, and is not used as to restriction of the present utility model.As long as
According to the technical essence of the utility model, above-described embodiment is changed, modification etc. will all fall in right of the present utility model
In the range of it is required that.
Claims (5)
1. one kind ensures the effective one side carbon film PCB buttons of flicking, including pcb board, carbon film, metal clips, metal clips is set
On carbon film, it is characterised in that the carbon film of button includes concentric inner circle and outer toroid, outer toroid open up it is jagged, inner circle
Outside extension is by gap extension to outer toroid；Pad is arranged at extension, and the cabling of pcb board is connected by pad and carbon film
Connect.
2. the guarantee effective one side carbon film PCB buttons of flicking according to claim 1, it is characterised in that the extension of straight line
Section is arranged at the center position of breach.
3. the guarantee effective one side carbon film PCB buttons of flicking according to claim 2, it is characterised in that square pad
It is arranged on breach.
4. the guarantee effective one side carbon film PCB buttons of flicking according to claim 3, it is characterised in that the width of extension
Degree is not more than 1.2mm, and pad is located at the center position of extension, and the width of pad is not more than 0.8mm.
5. the effective one side carbon film PCB buttons of guarantee flicking according to any one of Claims 1-4, it is characterised in that outer
The internal diameter of annulus is less than 5mm, and external diameter is more than 5mm；Interior diameter of a circle is not more than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720786869.2U CN207068726U (en) | 2017-06-30 | 2017-06-30 | One kind ensures the effective one side carbon film PCB buttons of flicking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720786869.2U CN207068726U (en) | 2017-06-30 | 2017-06-30 | One kind ensures the effective one side carbon film PCB buttons of flicking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207068726U true CN207068726U (en) | 2018-03-02 |
Family
ID=61506862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720786869.2U Expired - Fee Related CN207068726U (en) | 2017-06-30 | 2017-06-30 | One kind ensures the effective one side carbon film PCB buttons of flicking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207068726U (en) |
-
2017
- 2017-06-30 CN CN201720786869.2U patent/CN207068726U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 |