CN201812705U - Press key structure with function of dust prevention - Google Patents
Press key structure with function of dust prevention Download PDFInfo
- Publication number
- CN201812705U CN201812705U CN2010202432789U CN201020243278U CN201812705U CN 201812705 U CN201812705 U CN 201812705U CN 2010202432789 U CN2010202432789 U CN 2010202432789U CN 201020243278 U CN201020243278 U CN 201020243278U CN 201812705 U CN201812705 U CN 201812705U
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- CN
- China
- Prior art keywords
- key structure
- press
- reduction capability
- dust reduction
- circuit board
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Abstract
The utility model discloses a press key structure with the function of dust prevention, comprising a bottom board, an insulating sheet, a film circuit board, an elastic touch component and a key cap which is covered on the elastic touch component, wherein the insulating sheet is arranged on the bottom board and provided with a through hole; the film circuit board is covered on the insulating sheet and encloses a containing space at the position corresponding to the through hole jointly with the bottom board; the film circuit board is provided with a film switch above the containing space; and the elastic touch component is arranged above the film circuit board. With the press key structure, outside dust can be prevented from entering the inside of the press key structure via the through hole, thereby avoiding the influence of dust on the electric conducting connection and pressing stroke of the press key.
Description
Technical field
The utility model relates to a kind of press-key structure, particularly a kind of key dust-proofing structure that is used for keyboard.
Background technology
Because the progress of the universal network technology of computer equipment, computer has been used widely by masses and has become indispensable instrument now, input unit by computer peripheral equipment can allow a large amount of electronic information circulate rapidly via network, wherein, keyboard is one of at present general input unit.
Please refer to Fig. 1, press-key structure 1a for existing a kind of keyboard, it mainly is in a metal substrate 10a mounting one flexible circuit board 20a to be arranged, be printed with a conducting wire 21a on this flexible circuit board 20a, this conducting wire 21a is provided with the conductive junction point 22a at a plurality of intervals, the cover group has a button 30a above each conductive junction point 22a, this button 30a can make this conductive junction point 22a form conducting when pressing down, in addition, this metal substrate 10a is provided with a gas port 11a in the centre of corresponding each conductive junction point 22a, this gas port 11a can provide restoring force when button 30a presses down, make the operation of this press-key structure 1a more smooth and easy; Yet external dust or aqueous vapor etc. also can enter press-key structure 1a inside from this gas port 11a, even hinders the connection in stroke or the influence electrically of pushing of this press-key structure 1a.
In the said structure, though the outside of this metal substrate 10a is provided with one visual 40a, but, the setting of this visual 40a is whether be used to inspect the installation of button good, do not form and block for this gas port 11a, when foreign objects such as micronic dust and aqueous vapor enter, can influence the stroke of pushing of press-key structure 1a, and cause the problem that is electrically conducted.
In addition, because this metal substrate 10a needs corresponding a plurality of button 30a be provided with a plurality of gas port 11a, offering of those gas ports 11a but makes this metal substrate 10a strength reduction, causes the thickness of this metal substrate 10a can't thinning; Again, the diel of making this metal substrate 10a also reduces original structural strength because of offering of a plurality of gas port 11a, shorten the useful life of mould, and utilize made this gas port 11a of punch process mode can form sharp keen peritreme, so need this gas port 11a is carried out secondary operations again, to prevent scratch this flexible circuit board 20a or other assembly.
The utility model content
A purpose of the present utility model, be to provide a kind of press-key structure with dust reduction capability, it is to offer through hole in insulating trip, film circuit board, base plate is covered the both sides of insulating trip respectively again, so as to preventing external dust press-key structure inside in through hole advances.
Another purpose of the present utility model is to provide a kind of press-key structure of tool dust reduction capability, and when press-key structure was inner in external dust is advanced accidentally, its accommodation space can fall to putting for dust, is electrically conducted and pushes stroke with what avoid influencing button.
Another purpose of the present utility model is to provide a kind of press-key structure of tool dust reduction capability, because of base plate is not provided with perforate, thus can keep structural strength and thinning thickness, to meet short and small frivolous user demand.
A purpose more of the present utility model is to provide a kind of press-key structure of dustproof keyboard, because of not needing secondary operations, so can shorten the worker of button the time.
To achieve the above object, the utility model provides a kind of press-key structure with dust reduction capability, comprising:
One base plate;
One insulating trip is arranged on this base plate, and this insulating trip offers a through hole;
One film circuit board has a thin film switch, and this film circuit board covers on this insulating trip, and to should the through hole position and this base plate enclose jointly and constitute an accommodation space, this thin film switch is formed in this accommodation space top;
One elasticity triggering component is arranged at this film circuit board top; And
One keycap, cover cap is on this elasticity triggering component.
The above-mentioned press-key structure with dust reduction capability, wherein, this base plate is a metal aluminum sheet.
The above-mentioned press-key structure with dust reduction capability, wherein, this insulating trip is a mylar sheet.
The above-mentioned press-key structure with dust reduction capability, wherein, this thin film switch is the pair of conductive contact.
Above-mentioned press-key structure with dust reduction capability, wherein, this film circuit board is one or three layer circuit boards, and this three layer circuit board comprises one positive grade of circuit wafer, an insulation synusia and a negative pole circuit wafer that sets gradually, and this positive level circuit wafer and this negative pole circuit wafer are respectively equipped with corresponding conductive junction point.
The above-mentioned press-key structure with dust reduction capability, wherein, this elasticity triggering component is arranged on this thin film switch, and this elasticity triggering component has and one presses portion to what should thin film switch push.
The above-mentioned press-key structure with dust reduction capability, wherein, this elasticity triggering component is an elastomeric material spare.
The above-mentioned press-key structure with dust reduction capability, wherein, this elasticity triggering component is bowl-shape.
The above-mentioned press-key structure with dust reduction capability wherein, also comprises a bridge formation, and this bridge formation comprises two frameworks, and this two framework articulates mutually with the scissors state.
The above-mentioned press-key structure with dust reduction capability wherein, also comprises a bridge formation, and an end of this bridge formation is articulated in this keycap bottom surface, and the other end then is fixed on this base plate.
Above-mentioned press-key structure with dust reduction capability, wherein, this base plate forms a plurality of location divisions to building bridge, and the other end of this bridge formation is fixed on these a plurality of location divisions.
The above-mentioned press-key structure with dust reduction capability, wherein, this elasticity triggering component is a metallic film shell fragment.
Compared to prior art, the press-key structure of the utility model dustproof keyboard, be on insulating trip, to offer through hole, again film circuit board, base plate covered the both sides of insulating trip respectively, prevent foreign object press-key structure inside in through hole advances such as dust, aqueous vapor whereby; In addition, base plate, film circuit board enclose jointly in the through hole position and constitute an accommodation space, when press-key structure is inner in external dust is advanced accidentally, dust can fall to putting in accommodation space and unlikely influence button be electrically conducted and push stroke; In addition, because of the edge of through hole does not need to carry out secondary operations, so can shorten the worker of button the time; Moreover, because base plate is not provided with perforate,, more increase practicality of the present utility model so can keep structural strength and then thinning thickness.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is the press-key structure of existing a kind of keyboard;
The perspective exploded view of the press-key structure of Fig. 2 the utility model tool dust reduction capability;
The assembled sectional view of the press-key structure of Fig. 3 the utility model tool dust reduction capability; And
Fig. 4 is the local enlarged diagram of Fig. 3;
Fig. 5 the utlity model has another embodiment of the press-key structure of dust reduction capability.
[primary clustering symbol description]
1a press-key structure 10a metal substrate
21a conducting wire 22a conductive junction point
Visual of 30a button 40a
1 press-key structure
10 base plates, 11 location divisions
20 insulating trips, 200 through holes
21 through holes, 30 film circuit boards
31 positive grades of circuit layers of 300 perforates
311 conductive junction points, 32 insulating barriers
33 negative pole circuit layers, 331 conductive junction points
40 bridge formations, 41 frameworks
410 openings, 42 frameworks
420 openings, 50 elasticity triggering component
51 press portion's 60 keycaps
61 pivot holes
1 ' press-key structure, 10 ' base plate
20 ' insulating trip, 21 ' through hole
30 ' film circuit board, 50 ' elasticity triggering component
51 ' presses portion's 60 ' keycap
Embodiment
Relevant detailed description of the present utility model and technology contents cooperate graphic being described as follows, yet appended graphic reference and the explanation usefulness of only providing not is to be used for the utility model is limited.
Please refer to Fig. 2 to Fig. 4, be respectively perspective exploded view, assembled sectional view and the local enlarged diagram thereof of the press-key structure that the utlity model has dust reduction capability; Press-key structure 1 with dust reduction capability of the present utility model comprises a base plate 10, an insulating trip 20, a film circuit board 30, a bridge formation 40, one property triggering component 50 and keycap 60.
This base plate 10 is a supporting component, and it can be a metal aluminum sheet, forms a plurality of location divisions 11 on this base plate 10, and in present embodiment, this location division 11 is a lug, also can be set to other shape during actual enforcement.
This insulating trip 20 is fixed on this base plate 10, and it can be a mylar sheet (Mylar), and this insulating trip 20 is provided with a through hole 21 and a plurality of through hole 200.
This film circuit board 30 covers on this insulating trip 20, and to should through hole 21 positions and this base plate 10 enclose jointly and constitute an accommodation space, in addition, this film circuit board 30 is being provided with a plurality of perforates 300 to through hole 200 positions that should insulating trip 20; Moreover this film circuit board 30 is to being provided with a thin film switch in through hole 21 positions.
In the present embodiment, this film circuit board 30 is one or three layers a circuit board, it has an insulating barrier 32 and a negative pole circuit layer 33 in one positive grade of circuit layer 31,, in addition, this thin film switch can be made as the pair of conductive contact, be provided with a conductive junction point 311 in this positive level circuit layer 31, on this negative pole circuit layer 33 then correspondence be provided with a conductive junction point 331, this is formed in this accommodation space top to conductive junction point 311,331; This accommodation space can be for being contained in dust, the foreign matter of falling into this press-key structure inside in manufacturing or the use, to avoid influencing the accuracy of this button electrically connect.
This elasticity triggering component 50 is located at this film circuit board 30 tops, in the present embodiment, the elastomer of this elasticity triggering component 50 for being constituted with the rubber elastomeric material, this elasticity triggering component 50 is bowl-shape, this falls bowl-shapely to be the cylinder that extends downwards by the semicircle spheroid, by the semicircle spheroid and to constitute in boss three parts of semicircle spheroid end face setting, and has should one pressing portion 51 to what conductive junction point 311,331 was pushed; In the practical application, can use be conductively connected a little the triggering of other structure, and this elasticity triggering component 50 also can be arranged at this film circuit board 30 top appropriate locations, the demand of looking closely product.
This bridge formation 40 includes two frameworks 41,42, and this two framework 41,42 articulates mutually with the scissors state, and correspondence is provided with an opening 410,420 respectively, and this two opening the 410, the 420th touches body 50 for this elasticity and wears and mistake.
These keycap 60 cover caps are on this elasticity triggering component 50, between the actuating travel of this keycap 60, this elasticity is touched the strength that resets that body 50 can provide this keycap 60 to move up, the dual side-edge of these keycap 60 bottom surfaces has a pivot hole 61 respectively, one end of this two framework 41,42 promptly is articulated in this pivot hole 61, the other end passes the perforate 300 of this film circuit board 30 and the through hole 200 of this insulating trip 20 in regular turn, and is fixed on the location division 11 of this base plate 10.
When using this press-key structure 1, the application of force is at the end face of this keycap 60, this bridge formation 40 and this elasticity triggering component 50 can be subjected to pressing of this keycap 60 and move towards the direction of this film circuit board 30, and then form the actuating travel of this keycap 60, when the portion that presses 51 of this elasticity triggering component 50 presses on this film circuit board 30, the positive level circuit layer 31 of this film circuit board 30 and the conductive junction point 311,331 on the negative pole circuit layer 33 promptly are in contact with one another and conducting, and push button signalling is fed back to this film circuit board 30.
Please continue with reference to Fig. 5, be another embodiment of the present utility model, present embodiment and last embodiment are roughly the same, press-key structure 1 ' includes a base plate 10 ', be provided with an insulating trip 20 ' of through hole 21 ', one film circuit board 30 ', an one elasticity triggering component 50 ' and a keycap 60 ', only its difference is the setting of elasticity triggering component 50 ', in present embodiment, the portion that presses 51 ' of this elasticity triggering component 50 ' is a metallic film shell fragment, when a certain keycap 60 ' is subjected to pushing, its pairing metallic film shell fragment also can be pushed, press the film circuit board 30 ' of below more simultaneously, push button signalling is exported to this film circuit board 30 '.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (12)
1. the press-key structure with dust reduction capability is characterized in that, comprising:
One base plate;
One insulating trip is arranged on this base plate, and this insulating trip offers a through hole;
One film circuit board has a thin film switch, and this film circuit board covers on this insulating trip, and to should the through hole position and this base plate enclose jointly and constitute an accommodation space, this thin film switch is formed in this accommodation space top;
One elasticity triggering component is arranged at this film circuit board top; And
One keycap, cover cap is on this elasticity triggering component.
2. the press-key structure with dust reduction capability according to claim 1 is characterized in that, this base plate is a metal aluminum sheet.
3. the press-key structure with dust reduction capability according to claim 1 is characterized in that, this insulating trip is a mylar sheet.
4. the press-key structure with dust reduction capability according to claim 1 is characterized in that, this thin film switch is the pair of conductive contact.
5. the press-key structure with dust reduction capability according to claim 4, it is characterized in that, this film circuit board is one or three layer circuit boards, this three layer circuit board comprises one positive grade of circuit wafer, an insulation synusia and a negative pole circuit wafer that sets gradually, and this positive level circuit wafer and this negative pole circuit wafer are respectively equipped with corresponding conductive junction point.
6. the press-key structure with dust reduction capability according to claim 1 is characterized in that, this elasticity triggering component is arranged on this thin film switch, and this elasticity triggering component has and one presses portion to what should thin film switch push.
7. the press-key structure with dust reduction capability according to claim 1 is characterized in that, this elasticity triggering component is an elastomeric material spare.
8. the press-key structure with dust reduction capability according to claim 1 is characterized in that, this elasticity triggering component is bowl-shape.
9. the press-key structure with dust reduction capability according to claim 1 is characterized in that, also comprises a bridge formation, and this bridge formation comprises two frameworks, and this two framework articulates mutually with the scissors state.
10. the press-key structure with dust reduction capability according to claim 1 is characterized in that, also comprises a bridge formation, and an end of this bridge formation is articulated in this keycap bottom surface, and the other end then is fixed on this base plate.
11. the press-key structure with dust reduction capability according to claim 10 is characterized in that this base plate forms a plurality of location divisions to building bridge, the other end of this bridge formation is fixed on these a plurality of location divisions.
12. the press-key structure with dust reduction capability according to claim 6 is characterized in that, this elasticity triggering component is a metallic film shell fragment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202432789U CN201812705U (en) | 2010-06-25 | 2010-06-25 | Press key structure with function of dust prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202432789U CN201812705U (en) | 2010-06-25 | 2010-06-25 | Press key structure with function of dust prevention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812705U true CN201812705U (en) | 2011-04-27 |
Family
ID=43895644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202432789U Expired - Fee Related CN201812705U (en) | 2010-06-25 | 2010-06-25 | Press key structure with function of dust prevention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103377841A (en) * | 2012-04-12 | 2013-10-30 | 吴长隆 | Key structure of keyboard and manufacturing method thereof |
| US20180182575A1 (en) * | 2016-12-27 | 2018-06-28 | Asustek Computer Inc. | Key structure |
-
2010
- 2010-06-25 CN CN2010202432789U patent/CN201812705U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103377841A (en) * | 2012-04-12 | 2013-10-30 | 吴长隆 | Key structure of keyboard and manufacturing method thereof |
| CN103377841B (en) * | 2012-04-12 | 2016-06-01 | 吴长隆 | The press-key structure of keyboard and manufacture method thereof |
| US20180182575A1 (en) * | 2016-12-27 | 2018-06-28 | Asustek Computer Inc. | Key structure |
| CN108242354A (en) * | 2016-12-27 | 2018-07-03 | 华硕电脑股份有限公司 | Key structure |
| US10580596B2 (en) | 2016-12-27 | 2020-03-03 | Asustek Computer Inc. | Key structure |
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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: 20110427 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |