CN202434388U - Thin film switch, key with thin film switch, and keyboard with thin film switch - Google Patents
Thin film switch, key with thin film switch, and keyboard with thin film switch Download PDFInfo
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- CN202434388U CN202434388U CN2011205593607U CN201120559360U CN202434388U CN 202434388 U CN202434388 U CN 202434388U CN 2011205593607 U CN2011205593607 U CN 2011205593607U CN 201120559360 U CN201120559360 U CN 201120559360U CN 202434388 U CN202434388 U CN 202434388U
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Abstract
The utility model relates to a thin film switch, a key with the thin film switch, and a keyboard with the thin film switch. The thin film switch comprises a first thin film and a second thin film; a first conductive unit is arranged on one side of the first thin film and is composed of first conductive bodies; the second thin film is arranged on one side of the first thin film with the first conductive body; one side of the second thin film facing the first thin film is provided with a second conductive unit which is composed of a plurality of a plurality of second conductive bodies; the first conductive unit corresponds to the second conductive unit in position and a gap is left between the second conductive unit and the first conductive unit; wherein when the first conductive bodies of the first thin film collapse due to the applied force to be close to the second thin film, the first conductive bodies can contact with the second conductive bodies continuously to form electric conduction, and the applied press force can be further distinguished according to the resistance changes of a second resistance value in different stages.
Description
Technical field
The utility model is relevant for a kind of thin film switch, refer to especially a kind of can be according to resistance value, and then judge the thin film switch of pressing force size.
Background technology
Therefore thin film switch is widely used in various electronic products in recent years because volume is frivolous, and especially the sound that when pushing, produced of thin film switch is minimum, is applicable to the button or the keyboard of various devices especially.
Traditional thin film switch has up and down double-layer films usually, and double-layer films respectively has one or more electric conductors up and down, when user's application of force make up and down double-layer films each other near the time, then the electric conductor of bilevel film will contact with each other and then electrically conduct.Yet thin film switch now also can't measure user's application of force size accurately, also can't and then produce multiple different functions and demand by user's application of force size.
Therefore, need the thin film switch mechanism that proposes a kind of novelty badly, can in time measure user's application of force size, and and then produce multiple different corresponding function.
The utility model content
In view of this; The main purpose of the utility model is to solve the above problems and a kind of thin film switch, thin film switch button and thin film switch keyboard is provided; Can be according to the change in resistance of the different phase that resistance value produces of electric conductor, and then distinguish the pressing force size of this application of force.
For reaching above-mentioned purpose, the utility model provides a kind of thin film switch, comprises:
The first film, it has two relative faces, is provided with first conductive unit in one of them face of this first film, and this first conductive unit is made up of first electric conductor;
Second film; Be arranged at this first film and have the one side of this first electric conductor; Have spacing between this second film and this first film, this second film is provided with second conductive unit towards the one side of this first film, and this second conductive unit is made up of a plurality of second electric conductors; This second conductive unit is corresponding each other with the position of this first conductive unit, and has spacing between this second conductive unit and this first conductive unit;
Wherein, this first electric conductor power of being pressed subside and with this second film relatively near and contact with these a plurality of second electric conductors successively and form and electrically conduct.
Preferably, this second conductive unit is a looped conductive element, and these a plurality of second electric conductor equidistance are arranged in this looped conductive element.
Preferably, more be provided with resistance between the periphery of each this second electric conductor and this looped conductive element, the resistance of a plurality of these resistance is identical or different.
Preferably, each this second electric conductor is neither identical apart from the length at this looped conductive element center, and the resistance value of this pressing force this second electric conductor according to each is distinguished; Perhaps, the change in resistance of this pressing force different phase that resistance value produces of this second electric conductor according to each is distinguished.
The utility model also provides a kind of thin film switch button, comprises:
Substrate has two relative surfaces;
Thin film switch be arranged on one of them face on these two surfaces of this substrate, and this thin film switch comprises:
The first film, it has two relative faces, is provided with first conductive unit in one of them face of this first film, and this first conductive unit is made up of first electric conductor;
Second film; Be arranged at this first film and have the one side of this first electric conductor; Have spacing between this second film and this first film, this second film is provided with second conductive unit towards the one side of this first film, and this second conductive unit is made up of a plurality of second electric conductors; This second conductive unit is corresponding each other with the position of this first conductive unit, and has spacing between this second conductive unit and this first conductive unit;
Elastic component is arranged on the thin film switch, and to should first electric conductor, this elastic component has the press section;
Keycap is arranged on this elastic component;
Wherein, this first film is pushed in this press section when this keycap is pressed power, and this first electric conductor subsides and contacts with these a plurality of second electric conductors successively and form and electrically conducts.
Preferably, this second conductive unit is a looped conductive element, and these a plurality of second electric conductor equidistance are arranged in this looped conductive element.
Preferably, more be provided with resistance between the periphery of each this second electric conductor and this looped conductive element, the resistance of these a plurality of resistance is identical or different.
Preferably, each this second electric conductor is neither identical apart from the length at this looped conductive element center, and the resistance value of this pressing force this second electric conductor according to each is distinguished; Perhaps, the change in resistance of this pressing force different phase that resistance value produces of this second electric conductor according to each is distinguished.
The utility model also provides a kind of thin film switch keyboard, comprises:
Substrate has two relative surfaces;
Thin film switch be arranged on one of them face on these two surfaces of this substrate, and this thin film switch comprises:
The first film, it has two relative faces, in this first film wherein the one side be provided with a plurality of first conductive units, each this first conductive unit is made up of first electric conductor;
Second film; Be arranged at this first film and have the one side of this first electric conductor; Have spacing between this second film and this first film, this second film is provided with a plurality of second conductive units towards the one side of this first film, and each this second conductive unit is made up of a plurality of second electric conductors; These a plurality of second conductive units are corresponding each other with the position of these a plurality of first conductive units, and have spacing between these a plurality of second conductive units and this a plurality of first conductive units;
The plural number elastic component is arranged on the thin film switch, and respectively to should a plurality of first electric conductors, each elastic component has the press section;
The plural number keycap, each keycap is arranged at respectively on each elastic component;
Wherein, this first film is pushed in this press section when one of them of this plural number keycap is pressed power, and this first electric conductor subsides and can contact with these a plurality of second electric conductors successively and form and electrically conducts.
Preferably, this second conductive unit is a looped conductive element, and these a plurality of second electric conductor equidistance are arranged in this looped conductive element.
Preferably, more be provided with resistance between the periphery of each this second electric conductor and this looped conductive element, the resistance of these a plurality of resistance is identical or different.
Preferably; Each this second electric conductor is neither identical apart from the length at this looped conductive element center; The resistance value of this pressing force this second electric conductor according to each is distinguished, and perhaps, the change in resistance of this pressing force different phase that resistance value produces of this second electric conductor according to each is distinguished.
The beneficial effect of the utility model is; Through as above design; The utility model provides a kind of thin film switch, thin film switch button and thin film switch keyboard, can be according to the change in resistance of the different phase that resistance value produces of electric conductor, and then distinguish the pressing force size of this application of force.
Below in execution mode, be described in detail the detailed features and the advantage of the utility model; Its content is enough to make those skilled in the art to understand the technology contents of the utility model and implements according to this; And according to content, claim and the diagram that this specification disclosed, those skilled in the art can understand the utility model relevant purpose and advantage easily.
Description of drawings
Fig. 1 shows the profile according to the thin film switch 1 of an embodiment of the utility model;
The vertical view of second film of Fig. 2 displayed map 1;
Equivalent circuit diagram during the electrically conducting of Fig. 3 displayed map 2;
Fig. 4 shows the profile of the thin film switch button 2 of the thin film switch of using the utility model;
Fig. 5 shows the fragmentary cross-sectional view of the thin film switch keyboard 3 of the thin film switch of using the utility model.
Embodiment
Fig. 1 shows the profile according to the thin film switch 1 of an embodiment of the utility model.Thin film switch 1 comprises the first film 11 and second film 12.It has relative two face 11a and 11b the first film 11, and is provided with first conductive unit 111 in the wherein one side (for example, face 11b) of this first film 11, and this first conductive unit 111 is made up of the first electric conductor 111a.Second film 12 is arranged at the one side that this first film 11 has this first electric conductor 111a; Has spacing d between this second film and this first film; This second film is provided with second conductive unit 121 towards the one side of this first film; This second conductive unit 121 is made up of a plurality of second electric conductors (the for example second electric conductor 121a, 121b and 121c); This second conductive unit 121 is corresponding each other with the position of this first conductive unit 111, and has spacing d1 between this second conductive unit 121 and this first conductive unit 111.In addition, when user's application of force this first electric conductor 111a of this first film 11 is subsided and with this second film 12 relatively near the time, this first electric conductor 111a can contact with 121c with this second electric conductor 121a, 121b and form and electrically conduct.
The vertical view of second film of Fig. 2 displayed map 1.As shown in Figure 2; This second conductive unit 121 can be looped conductive element 1211; And these a plurality of second electric conductor 121a, 121b, 121c equidistance are arranged in this looped conductive element 1211; And more be provided with resistance R a between the periphery of each second electric conductor 121a, 121b and 121c and this looped conductive element, the resistance of each resistance R a can be similar resistance or different resistance.Moreover in actual demand and design, second conductive unit 121 also is not limited as looped conductive element, and can be designed to geometry arbitrarily, but and each resistance also equidistance or being arranged within this second conductive unit 121 of equidistance not.In addition; Each this second electric conductor is neither identical apart from the length at this looped conductive element center; And when user's application of force makes this first electric conductor 111a successively with these a plurality of second electric conductor 121a, 121b and 121c conducting; Then according to the resistance value of each second electric conductor, and then distinguish the pressing force of this application of force.Further; When the application of force makes this first electric conductor 111a successively with these a plurality of second electric conductor 121a, 121b and 121c conducting; Then according to the change in resistance of the different phase that resistance value produces of each second electric conductor, and then distinguish the pressing force of this application of force.
Equivalent circuit diagram when Fig. 3 displayed map 2 electrically conducts.As shown in Figure 3; When user's application of force make this first film 11 and this second film 12 relatively near the time; This first electric conductor 111a can contact with 121c with this second electric conductor 121a, 121b successively and form and electrically conduct; Therefore, can form electric conductor impedance RAg a plurality of resistance R a that connect, and a plurality of resistance R a is to be in parallel each other.So when electrically conducting, the discontinuous change in resistance in different stages then can occur, and then distinguish the pressing force of user's application of force according to parallel effect.
Fig. 4 shows the profile of the thin film switch button 2 of the thin film switch of using the utility model.Thin film switch button 2 comprises: substrate 21, thin film switch 22, elastic component 23 and keycap 24.Substrate 21 has two relative surperficial 21a, 21b.Thin film switch 22 be arranged on this two one of them face of surface (for example, face 21a) of this substrate 21, and this thin film switch comprises the first film 221 and second film 222.It has two relative 221a aforesaid the first film 221; 221b; Wherein one side (for example face 221b) in this first film 221 is provided with first conductive unit 2211, and this first conductive unit 2211 is made up of the first electric conductor 2211a, and second film 222; Be arranged at this first film 221 and have the one side of this first electric conductor 2211a; Have spacing d between this second film 222 and this first film 221, this second film 222 is provided with second conductive unit 2212 towards the one side of this first film 221, and this second conductive unit 2212 is made up of a plurality of second electric conductor 2212a, 2212b, 2213c; This second conductive unit 2212 is corresponding each other with the position of this first conductive unit 2211, and has spacing d1 between this second conductive unit 2212 and this first conductive unit 2211; Elastic component 23 is arranged on the thin film switch 22, and to should the first electric conductor 2211a, this elastic component 23 has press section 231; Keycap 24 is arranged on this elastic component 23.In addition, when the user forces in this keycap 24, this press section 231 push this first film 221 and this first electric conductor 2211a is subsided and can be successively with this second electric conductor 2212a, 2212b, 2212c contacts and form and electrically conduct.In addition, those skilled in the art should understand, and the thin film switch button of the utility model also can comprise supporting construction (not illustrating), to be connected keycap 24 and substrate 21 versatilely, for example, the scissors leg structure.
In addition; This second conductive unit 2212 can be looped conductive element (as shown in Figure 2); And these a plurality of second electric conductor 2212a, 2212b and 2212c equidistance are arranged in this looped conductive element; And more be provided with resistance R a between the periphery of each second electric conductor and this looped conductive element, the resistance of each resistance R a can be similar resistance or different resistance.Moreover in actual demand and design, second conductive unit 2212 also is not limited as looped conductive element, and can be designed to geometry arbitrarily, but and each resistance also equidistance or being arranged within this second conductive unit 2212 of equidistance not.In addition; Each this second electric conductor is neither identical apart from the length at the center of this looped conductive element; And when user's application of force makes this first electric conductor 2211a successively with these a plurality of second electric conductor 2212a, 2212b and 2212c conducting; Then according to the resistance value of each second electric conductor, and then distinguish the pressing force of this application of force.Further; When the application of force makes this first electric conductor 2211a successively with these a plurality of second electric conductor 2212a, 2212b and 2212c conducting; Then according to the change in resistance of the different phase that resistance value produces of each second electric conductor, and then distinguish the pressing force of this application of force.
Fig. 5 shows the fragmentary cross-sectional view of the thin film switch keyboard 3 of the thin film switch of using the utility model.Thin film switch keyboard 4 comprises: substrate 31, thin film switch 32, a plurality of elastic component 33 and a plurality of keycap 34.Substrate 31 has relative two surperficial 31a, 31b.Thin film switch 32 is arranged on this one of them face of two surfaces of this substrate 31 (for example 31a), and this thin film switch 32 comprises: the first film 321 and second film 322.It has two relative 321a aforementioned the first film 321; 321b; Wherein one side (for example 321b) in this first film 321 is provided with a plurality of first conductive units 3211; Each this first conductive unit 3211 is made up of the first electric conductor 3211a; And second film 322 is arranged at the one side that this first film 321 has this first electric conductor 3211a, has spacing d between this second film 322 and this first film 321; This second film 322 is provided with a plurality of second conductive units 3212 towards the one side of this first film 321; Each this second conductive unit 3212 is made up of a plurality of second electric conductor 3212a, 3212b, 3212c, and these a plurality of second conductive units 3212 are corresponding one by one each other with the position of these a plurality of first conductive units 3211, and has spacing d1 between these a plurality of second conductive units 3212 and this a plurality of first conductive units 3211.A plurality of elastic components 33 are arranged on the thin film switch 32, and respectively to should a plurality of first electric conductors, each elastic component has press section 331.Plural number keycap 34, each keycap is arranged at respectively on each elastic component.In addition, when the user forces in one of them of this plural number keycap, this press section 331 push this first film 321 and this first electric conductor 3211a is subsided and can be successively with this second electric conductor 3212a, 3212b, 3212c contacts and form and electrically conduct.In addition, those skilled in the art should understand, and each button of the thin film switch keyboard of the utility model also can comprise supporting construction (not illustrating), to be connected keycap 34 and substrate 31 versatilely, for example, the scissors leg structure.
In addition; This second conductive unit 3212 can be looped conductive element (as shown in Figure 2); And these a plurality of second electric conductor 3212a, 3212b, 3212c equidistance are arranged in this looped conductive element; And more be provided with resistance R a between the periphery of each second electric conductor and this looped conductive element, the resistance of each resistance R a can be similar resistance or different resistance.Moreover in actual demand and design, second conductive unit 3212 also is not limited as looped conductive element, and can be designed to geometry arbitrarily, but and each resistance also equidistance or being arranged within this second conductive unit 3212 of equidistance not.In addition; Each this second electric conductor is neither identical apart from the length at this looped conductive element center; And when user's application of force makes this first electric conductor 3211a successively with these a plurality of second electric conductor 3212a, 3212b, 3212c conducting; Then according to the resistance value of each second electric conductor, and then distinguish the pressing force of this application of force.Further; When making this first electric conductor 3211a, the application of force leads 3212a, 3212b, 3212c when logical with these a plurality of second electric conductors successively; Then according to the change in resistance of the different phase that resistance value produces of each second electric conductor, and then distinguish the pressing force of this application of force.
In addition, in the utility model, above-mentioned conductive material can be conducting metal, for example, silver slurry, and thin film switch can by polyethylene terephthalate (Polyethylene Terephthalate, PET) made.
The above is that only the notebook utility model is preferred embodiments or the embodiment that presents the technological means that adopted of dealing with problems, and is not the scope that is used for limiting the utility model patent protection.Be that all protection ranges that is limited with the utility model claims conform to, or the equalization of being done according to the utility model claim changes and modify, be all within the protection range that the utility model claim limited.
Claims (12)
1. a thin film switch is characterized in that, comprises:
The first film, it has two relative faces, is provided with first conductive unit in one of them face of this first film, and this first conductive unit is made up of first electric conductor;
Second film; Be arranged at this first film and have the one side of this first electric conductor; Have spacing between this second film and this first film, this second film is provided with second conductive unit towards the one side of this first film, and this second conductive unit is made up of a plurality of second electric conductors; This second conductive unit is corresponding each other with the position of this first conductive unit, and has spacing between this second conductive unit and this first conductive unit;
Wherein, this first electric conductor power of being pressed subside and with this second film relatively near and contact with these a plurality of second electric conductors successively and form and electrically conduct.
2. thin film switch as claimed in claim 1 is characterized in that, this second conductive unit is a looped conductive element, and these a plurality of second electric conductor equidistance are arranged in this looped conductive element.
3. thin film switch as claimed in claim 2 is characterized in that, more is provided with resistance between the periphery of each this second electric conductor and this looped conductive element, and the resistance of a plurality of these resistance is identical or different.
4. thin film switch as claimed in claim 3 is characterized in that, each this second electric conductor is neither identical apart from the length at this looped conductive element center, and the resistance value of this pressing force this second electric conductor according to each is distinguished; Perhaps, the change in resistance of this pressing force different phase that resistance value produces of this second electric conductor according to each is distinguished.
5. a thin film switch button is characterized in that, comprises:
Substrate has two relative surfaces;
Thin film switch be arranged on one of them face on these two surfaces of this substrate, and this thin film switch comprises:
The first film, it has two relative faces, is provided with first conductive unit in one of them face of this first film, and this first conductive unit is made up of first electric conductor;
Second film; Be arranged at this first film and have the one side of this first electric conductor; Have spacing between this second film and this first film, this second film is provided with second conductive unit towards the one side of this first film, and this second conductive unit is made up of a plurality of second electric conductors; This second conductive unit is corresponding each other with the position of this first conductive unit, and has spacing between this second conductive unit and this first conductive unit;
Elastic component is arranged on the thin film switch, and to should first electric conductor, this elastic component has the press section;
Keycap is arranged on this elastic component;
Wherein, this first film is pushed in this press section when this keycap is pressed power, and this first electric conductor subsides and contacts with these a plurality of second electric conductors successively and form and electrically conducts.
6. thin film switch button as claimed in claim 5 is characterized in that, this second conductive unit is a looped conductive element, and these a plurality of second electric conductor equidistance are arranged in this looped conductive element.
7. thin film switch button as claimed in claim 6 is characterized in that, more is provided with resistance between the periphery of each this second electric conductor and this looped conductive element, and the resistance of these a plurality of resistance is identical or different.
8. thin film switch button as claimed in claim 7 is characterized in that, each this second electric conductor is neither identical apart from the length at this looped conductive element center, and the resistance value of this pressing force this second electric conductor according to each is distinguished; Perhaps, the change in resistance of this pressing force different phase that resistance value produces of this second electric conductor according to each is distinguished.
9. a thin film switch keyboard is characterized in that, comprises:
Substrate has two relative surfaces;
Thin film switch be arranged on one of them face on these two surfaces of this substrate, and this thin film switch comprises:
The first film, it has two relative faces, in this first film wherein the one side be provided with a plurality of first conductive units, each this first conductive unit is made up of first electric conductor;
Second film; Be arranged at this first film and have the one side of this first electric conductor; Have spacing between this second film and this first film, this second film is provided with a plurality of second conductive units towards the one side of this first film, and each this second conductive unit is made up of a plurality of second electric conductors; These a plurality of second conductive units are corresponding each other with the position of these a plurality of first conductive units, and have spacing between these a plurality of second conductive units and this a plurality of first conductive units;
The plural number elastic component is arranged on the thin film switch, and respectively to should a plurality of first electric conductors, each elastic component has the press section;
The plural number keycap, each keycap is arranged at respectively on each elastic component;
Wherein, this first film is pushed in this press section when one of them of this plural number keycap is pressed power, and this first electric conductor subsides and can contact with these a plurality of second electric conductors successively and form and electrically conducts.
10. thin film switch keyboard as claimed in claim 9 is characterized in that, this second conductive unit is a looped conductive element, and these a plurality of second electric conductor equidistance are arranged in this looped conductive element.
11. thin film switch keyboard as claimed in claim 10 is characterized in that, more is provided with resistance between the periphery of each this second electric conductor and this looped conductive element, the resistance of these a plurality of resistance is identical or different.
12. thin film switch keyboard as claimed in claim 11; It is characterized in that; Each this second electric conductor is neither identical apart from the length at this looped conductive element center; The resistance value of this pressing force this second electric conductor according to each is distinguished, and perhaps, the change in resistance of this pressing force different phase that resistance value produces of this second electric conductor according to each is distinguished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205593607U CN202434388U (en) | 2011-12-28 | 2011-12-28 | Thin film switch, key with thin film switch, and keyboard with thin film switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205593607U CN202434388U (en) | 2011-12-28 | 2011-12-28 | Thin film switch, key with thin film switch, and keyboard with thin film switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434388U true CN202434388U (en) | 2012-09-12 |
Family
ID=46783815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205593607U Expired - Fee Related CN202434388U (en) | 2011-12-28 | 2011-12-28 | Thin film switch, key with thin film switch, and keyboard with thin film switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434388U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021961A (en) * | 2014-05-27 | 2014-09-03 | 桂林恒昌电子科技有限公司 | Plaster type elastomer touch switch |
| CN104022374A (en) * | 2014-05-27 | 2014-09-03 | 桂林恒昌电子科技有限公司 | Paster type elastomer conductive single connector |
| CN107957787A (en) * | 2017-12-15 | 2018-04-24 | 联想(北京)有限公司 | Keyboard, input method, computer and computer system |
-
2011
- 2011-12-28 CN CN2011205593607U patent/CN202434388U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021961A (en) * | 2014-05-27 | 2014-09-03 | 桂林恒昌电子科技有限公司 | Plaster type elastomer touch switch |
| CN104022374A (en) * | 2014-05-27 | 2014-09-03 | 桂林恒昌电子科技有限公司 | Paster type elastomer conductive single connector |
| CN107957787A (en) * | 2017-12-15 | 2018-04-24 | 联想(北京)有限公司 | Keyboard, input method, computer and computer system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20191228 |