CN205452117U - Membrane switch - Google Patents
Membrane switch Download PDFInfo
- Publication number
- CN205452117U CN205452117U CN201521089036.8U CN201521089036U CN205452117U CN 205452117 U CN205452117 U CN 205452117U CN 201521089036 U CN201521089036 U CN 201521089036U CN 205452117 U CN205452117 U CN 205452117U
- Authority
- CN
- China
- Prior art keywords
- thin film
- base material
- circuit
- substrate
- conducting
- 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
Links
- 239000012528 membrane Substances 0.000 title abstract 3
- 238000005530 etching Methods 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052709 silver Inorganic materials 0.000 claims abstract description 6
- 239000004332 silver Substances 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 37
- 239000010409 thin film Substances 0.000 claims description 21
- 239000005030 aluminium foil Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 6
- 239000010408 film Substances 0.000 claims description 6
- 229920002799 BoPET Polymers 0.000 claims description 5
- 239000005041 Mylar™ Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 claims description 3
- 229920006289 polycarbonate film Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000007639 printing Methods 0.000 abstract description 12
- 239000000758 substrate Substances 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model relates to a membrane switch, including last conducting wire, lower conducting wire and be located insulating part between the two, lower conducting wire includes the substrate and is located the etching metallic circuit of substrate top, is equipped with at least a pair of through -hole on this substrate, and the through -hole is inside and be located substrate bottom between two through -holes and be equipped with conducting coating, closed -loop that substrate and the formation of etching metallic circuit switched on. The utility model discloses a set up the etching metallic circuit and replace traditional circuit that the silver -colored circuit of printing formed on the substrate above the substrate, on the conducting wire concentrated on the metal level fine and closely wovenly, bad probability took place for the circuit that reduces when printing, promotes the yield, simultaneously, to substrate drilling, in the through -hole and the substrate bottom establish conducting coating, switching on closed -loop and can replacing the insulating layer and the wire jumper that have now of formation has reduced production processes, has reduced the technology degree of difficulty, has saved manufacturing cost by a wide margin, the cost of saving is about traditional membrane switch's 40%.
Description
Technical field
This utility model relates to a kind of thin film switch, is specifically related to a kind of thin film switch comprising special construction conducting wire, belongs to electronic technology field.
Background technology
Existing thin film switch uses three layers structure, including upper layer circuit plate, insulating barrier and lower sandwich circuit board, wherein upper layer circuit plate and lower sandwich circuit board include base material and printing silver wire circuit, glue laminating is passed through between upper layer circuit plate and insulating barrier, insulating barrier and lower sandwich circuit board, its production technology includes that silver wire, wire jumper, gluing are printed in the upper and lower, and production process is more, relatively costly, and the fraction defective of circuit is the highest during printing silver wire, waterproof ability is poor.
And, foregoing circuit plate many employings Kapton is as base material, and its cost is the highest.
Utility model content
Utility model purpose: the purpose of this utility model is to provide a kind of thin film switch, this thin film switch can be greatly saved cost, improves production efficiency.
Technical scheme: thin film switch described in the utility model, including upper conducting wire, lower conducting wire and be positioned at insulated part between the two, lower conducting wire includes base material and is positioned at the etching metallic circuit above base material, this base material is provided with at least one pair of through hole, being provided with conductive coating bottom through hole inside and the base material between two through hole, base material forms the closed-loop path of conducting with etching metallic circuit.This utility model replaces existing printing silver wire circuit by one side etching metallic circuit, and by base material is holed, conductive coating is set in through hole and bottom base material, make the base material mode with etching metal circuit turn-on to replace existing insulating barrier and wire jumper, production process is simple, cost is relatively low, and the cost of saving is about the 40% of conventional films switch.
Above-mentioned upper conducting wire includes electric conductor, be provided with in etching metallic circuit with this on the lower electric conductor of electric conductor conducting；Lower electric conductor includes positive pole trigger unit and negative pole trigger unit, and this positive pole trigger unit includes positive pole connecting portion, and this negative pole trigger unit includes and this positive pole connecting portion centrosymmetric negative pole connecting portion；Extending towards out a plurality of positive wire being parallel to each other and cathode conductor from positive pole connecting portion and negative pole connecting portion respectively, arbitrary cathode conductor is between adjacent two positive wires；Leave distance between free-end and the negative pole connecting portion of positive wire, between free-end and the positive pole connecting portion of cathode conductor, leave distance.Positive pole trigger unit and negative pole trigger unit being simultaneously located in lower electric conductor, be simultaneously connected with positive pole and negative pole, by compressing switch, upper electric conductor contacts with adjacent positive wire and cathode conductor simultaneously, and both positive and negative polarity turns on, and button turns on.
Concrete, upper electric conductor is trigger point or the elastomer with conducting function.
Preferably, trigger point is carbon trigger point or other conducting metal trigger points.
Concrete, and base material bottom print two through hole between internal at through hole or coating conductive coating.
Above-mentioned conductive coating is metal coating or carbon coating.
Preferably, metal coating is silver coating or copper coating.
Above-mentioned etching metallic circuit is etching copper foil circuit or etching aluminium foil circuit.Preferably etching aluminium foil circuit, can reduce cost further.
Further, etching aluminium foil circuit surface is provided with conducting metal protective layer.
Concrete, base material is Kapton, mylar, polycarbonate film, polyvinyl chloride film or other flexible substrates.
Beneficial effect: compared with prior art, the utility model has the advantage of:
(1) this utility model uses and is provided above etching the circuit formed on printing on substrates silver wire road that metal circuitry instead is traditional at base material, and by base material is holed, conductive coating is set in through hole and bottom base material, make to be formed between base material and etching metallic circuit the closed-loop path of conducting, replace existing insulating barrier and wire jumper, decrease production process, reduce technology difficulty, significantly saving production cost, the cost of saving is about the 40% of conventional films switch；Meanwhile, conducting wire is compactly concentrated on the metal layer, and circuit when reducing printing occurs bad probability, promotes yield；
(2) positive pole trigger unit and negative pole trigger unit are simultaneously located in lower electric conductor by this utility model, the upper electric conductor turned on therewith can simply be the conducting medium with conducting function, by compressing switch, upper electric conductor contacts with adjacent positive wire and cathode conductor simultaneously, both positive and negative polarity turns on, and button turns on；With traditional in positive pole trigger unit and negative pole trigger unit are disposed on electric conductor and lower electric conductor compared with, conducting structure of the present utility model can carry out centralized production, and can reduce production process, effectively reduces production cost；
(3) gold-plated, tin plating or other conducting metal protective layers on metallic circuit can etched; even if there being water to pollute herein; switch after the drying and still can normally use; waterproof ability is improved significantly; being promoted to from 2 hours of current industry testing standard 24 hours or longer, this is that the circuit of printing silver slurry cannot realize in current industry.
Accompanying drawing explanation
Fig. 1 is the structural representation of thin film switch of the present utility model；
Fig. 2 is the closed-loop path that in lower conducting wire of the present utility model, base material is formed with etching metallic circuit, and wherein, the direction of arrow is circuit turn-on direction；
Fig. 3 is the structural representation of lower electric conductor of the present utility model；
Fig. 4 is upper electric conductor when being trigger point, the structural representation of thin film switch of the present utility model；
Fig. 5 is upper electric conductor when being the elastomer with conducting function, the structural representation of thin film switch of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings the technical solution of the utility model is described further.
As shown in Figure 1, thin film switch of the present utility model, including upper conducting wire 1, lower conducting wire 2 and be positioned at insulated part between the two, lower conducting wire 2 includes base material 3 and is positioned at the etching metallic circuit 4 above base material 3, this base material 3 is provided with at least one pair of through hole 5, it is provided with conductive coating 6 bottom through hole 5 inside and the base material between two through hole 5, makes base material 3 form the closed-loop path of conducting, conducting direction such as Fig. 2 with etching metallic circuit 4.
Base material 3 can be Kapton, mylar, polycarbonate film, polyvinyl chloride film or other flexible substrates, preferably mylar, and using mylar as base material, cost is relatively low.
Etching metallic circuit 4 can be etching copper foil circuit, etching aluminium foil circuit or other etching metallic circuits.When selecting etching aluminium foil circuit; conducting metal protective layer can be added on its surface; even if there being water to pollute herein; switch after the drying and still can normally use; the waterproof ability of switch is improved significantly; being promoted to from 2 hours of current industry testing standard 24 hours or longer, this is that the circuit of printing silver slurry cannot realize in current industry.Etching metallic circuit 4 preferably etches aluminium foil circuit, can reduce cost further.
Can be by forming conductive coating 6 by the way of the base material bottom print in through hole 5 and between through hole 5 or coating conductive material.Such as printing or copper coated slurry, the silver metal coating such as slurry, it is also possible to print or apply carbon slurry formation there is the carbon coating of electric conductivity.
This utility model replaces existing printing silver wire circuit by arranging etching metallic circuit 4 at base material 3 one side, and conducting wire is compactly concentrated on the metal layer, and circuit when reducing printing occurs bad probability, promotes yield；And by base material 3 is holed, in through hole 5 and bottom base material, set conductive coating 6, and making base material 3 turn on etching metallic circuit 4, replace existing insulating barrier and wire jumper, production process is simple, and cost is relatively low, and the cost of saving is about the 40% of conventional films switch.
Upper conducting wire 1 includes electric conductor, be provided with in etching metallic circuit 4 with this on the lower electric conductor 7 of electric conductor conducting.Upper electric conductor and lower electric conductor 7 can connect positive pole and negative pole respectively, and by when compressing switch, both positive and negative polarity turns on, switch conduction.
Such as Fig. 3, lower electric conductor 7 may also comprise positive pole trigger unit and negative pole trigger unit, and this positive pole trigger unit includes positive pole connecting portion 8, and this negative pole trigger unit includes and this positive pole connecting portion 8 centrosymmetric negative pole connecting portion 9；Extending towards out a plurality of positive wire 10 being parallel to each other and cathode conductor 11 from positive pole connecting portion 8 and negative pole connecting portion 9 respectively, arbitrary cathode conductor 11 is between adjacent two positive wires 10；Leave distance between free-end and the negative pole connecting portion 9 of positive wire 10, between free-end and the positive pole connecting portion 8 of cathode conductor 11, leave distance, it is to avoid both positive and negative polarity short circuit.Positive pole trigger unit and negative pole trigger unit being simultaneously located in lower electric conductor 7, be simultaneously connected with positive pole and negative pole, by compressing switch, upper electric conductor contacts with adjacent positive wire 10 and cathode conductor 11 simultaneously, and both positive and negative polarity turns on, and button turns on.
Positive pole trigger unit and negative pole trigger unit being simultaneously located in lower electric conductor 7, lower electric conductor 7 can be simultaneously connected with positive pole and negative pole, and the upper electric conductor turned on therewith can be the electric conductor of traditional band circuit, it is possible to only have the conducting medium of conducting function.
Upper electric conductor can be trigger point 12, such as Fig. 4, upper conducting wire is made up of base material and trigger point 12, trigger point 12 can be conducting metal trigger point, such as silver point or copper point, it is possible to for carbon point, by when compressing switch, trigger point 12 contacts with positive pole trigger unit and the negative pole trigger unit of lower electric conductor 7 simultaneously, switch conduction.
Upper electric conductor alternatively has the elastomer 13 of conducting function, such as Fig. 5, the part that elastomer 13 contacts with lower electric conductor 7 is provided with conductive materials, presses for 13 times by elastomer when compressing switch, contact with positive pole trigger unit and the negative pole trigger unit of lower electric conductor 7, switch conduction simultaneously.
Compared with traditional positive pole trigger unit and negative pole trigger unit being disposed in upper electric conductor and lower electric conductor, it is possible to reduce production process, effectively reduce production cost.
Claims (10)
1. a thin film switch, including upper conducting wire (1), lower conducting wire (2) and be positioned at insulated part between the two, it is characterized in that, described lower conducting wire (2) includes base material (3) and is positioned at the etching metallic circuit (4) of base material (3) top, this base material (3) is provided with at least one pair of through hole (5), this through hole (5) is internal and is positioned at bottom the base material between two through hole (5) and is provided with conductive coating (6), and described base material (3) forms the closed-loop path of conducting with described etching metallic circuit (4).
Thin film switch the most according to claim 1, it is characterised in that described upper conducting wire (1) includes electric conductor, be provided with in described etching metallic circuit (4) with this on electric conductor conducting lower electric conductor (7)；This lower electric conductor (7) includes positive pole trigger unit and negative pole trigger unit, this positive pole trigger unit includes positive pole connecting portion (8), this negative pole trigger unit includes and this positive pole connecting portion (8) centrosymmetric negative pole connecting portion (9), extending towards out a plurality of positive wire (10) being parallel to each other and cathode conductor (11) from described positive pole connecting portion (8) and negative pole connecting portion (9) respectively, arbitrary cathode conductor (11) is positioned between adjacent two positive wires (10)；Leave distance between free-end and the negative pole connecting portion (9) of described positive wire (10), between free-end and the positive pole connecting portion (8) of described cathode conductor (11), leave distance.
Thin film switch the most according to claim 2, it is characterised in that described upper electric conductor is trigger point (12) or the elastomer (13) with conducting function.
Thin film switch the most according to claim 3, it is characterised in that described trigger point (12) are carbon trigger point or other conducting metal trigger points.
Thin film switch the most according to claim 1, it is characterised in that internal at described through hole (5) and be positioned at the base material bottom print between two through hole (5) or coating conductive coating.
6. according to the thin film switch according to any one of claim 1-5, it is characterised in that described conductive coating (6) is metal coating or carbon coating.
Thin film switch the most according to claim 6, it is characterised in that described metal coating is silver coating or copper coating.
8. according to the thin film switch according to any one of claim 1-5, it is characterised in that described etching metallic circuit (4) is etching copper foil circuit or etching aluminium foil circuit.
Thin film switch the most according to claim 8, it is characterised in that described etching aluminium foil circuit surface is provided with conducting metal protective layer.
Thin film switch the most according to claim 1, it is characterised in that described base material (3) is Kapton, mylar, polycarbonate film or polyvinyl chloride film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521089036.8U CN205452117U (en) | 2015-12-24 | 2015-12-24 | Membrane switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521089036.8U CN205452117U (en) | 2015-12-24 | 2015-12-24 | Membrane switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452117U true CN205452117U (en) | 2016-08-10 |
Family
ID=56585934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521089036.8U Expired - Fee Related CN205452117U (en) | 2015-12-24 | 2015-12-24 | Membrane switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205452117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390318A (en) * | 2015-12-24 | 2016-03-09 | 江苏传艺科技股份有限公司 | Thin-film switch |
-
2015
- 2015-12-24 CN CN201521089036.8U patent/CN205452117U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390318A (en) * | 2015-12-24 | 2016-03-09 | 江苏传艺科技股份有限公司 | Thin-film switch |
| CN105390318B (en) * | 2015-12-24 | 2018-02-27 | 江苏传艺科技股份有限公司 | Thin film switch |
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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: 20160810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |