CN212342517U - Corrosion-resistant membrane switch, microwave oven and oven - Google Patents
Corrosion-resistant membrane switch, microwave oven and oven Download PDFInfo
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- CN212342517U CN212342517U CN202020975234.9U CN202020975234U CN212342517U CN 212342517 U CN212342517 U CN 212342517U CN 202020975234 U CN202020975234 U CN 202020975234U CN 212342517 U CN212342517 U CN 212342517U
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Abstract
The utility model discloses an anticorrosive membrane switch, microwave oven and oven, anticorrosive membrane switch include panel assembly and with panel assembly electric connection's lead-out wire subassembly, the lead-out wire subassembly includes: go up the substrate layer, go up metal conductor layer, go up the conductive carbon layer, go up insulating ink layer, lower conductive carbon layer, metal conductor layer and lower substrate layer down, it covers to go up the conductive carbon layer go up metal conductor layer, go up the conductive carbon layer with go up metal conductor layer electric connection, down the conductive carbon layer cover metal conductor layer down, down the conductive carbon layer with metal conductor layer electric connection down. The chemical stability of the conductive carbon layer is higher than that of the metal wire layer, the metal wire layer is covered by the conductive carbon layer, and when the metal wire layer is corroded but the conductive carbon layer is not corroded, the film switch circuit is kept on under the action of the conductive carbon layer, so that the service life of the film switch is prolonged.
Description
Technical Field
The utility model relates to a membrane switch field, in particular to anticorrosive membrane switch, microwave oven and oven.
Background
The membrane switch is an operation system integrating a key function, an indicating element and an instrument panel, and is widely applied to the fields of electronic communication and electronic measurement instruments, industrial control, medical equipment, automobile industry, intelligent toys, household appliances and the like.
The existing membrane switch comprises an outgoing line assembly, wherein the outgoing line assembly is used for transmitting signals, and the outgoing line assembly is easily corroded in a use environment, so that the function of the membrane switch is failed; the outgoing line assembly comprises a PET (polyethylene terephthalate) substrate layer, a metal wire layer, a golden finger carbon layer and an insulating ink layer, wherein the PET substrate layer and the insulating ink layer are adopted to protect the metal wire layer by the outgoing line assembly, the golden finger carbon layer only covers a small part of the output end of the outgoing line assembly, the corrosion resistance of the metal wire layer is poor, after the PET substrate layer or the insulating ink layer is corroded locally, the metal wire layer corresponding to the corroded position of the PET substrate layer or the insulating ink layer can be corroded, when the corroded position is not covered with the golden finger carbon layer, the circuit of the metal wire layer of the part is disconnected, the thin film switch cannot be normally used, and the service life of the thin film switch is shortened; when the metal wire layer has a fine defect which cannot be found by quality inspection in the production process, the defect is deteriorated to cause the disconnection of the metal wire layer circuit, so that the membrane switch cannot be normally used; the metal conductor layer is easily polluted in the quality inspection process, so that the metal conductor layer cannot be conducted, and the membrane switch cannot be normally used.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an anticorrosive membrane switch, can guarantee switching on of membrane switch circuit to extension membrane switch's life.
The utility model provides a solution of its technical problem is: a corrosion resistant membrane switch comprising a panel assembly and a lead out assembly electrically connected to the panel assembly, the lead out assembly comprising: an upper substrate layer; the upper metal wire layer is arranged on one side of the upper base material layer; the upper conductive carbon layer is arranged on one side, far away from the upper base material layer, of the upper metal wire layer, covers the upper metal wire layer, and is electrically connected with the upper metal wire layer; the upper insulating ink layer is arranged on one side, away from the upper metal wire layer, of the upper conductive carbon layer; the lower insulating ink layer is arranged on one side, away from the upper conductive carbon layer, of the upper insulating ink layer; the lower conductive carbon layer is arranged on one side, away from the upper insulating ink layer, of the lower insulating ink layer; the lower metal wire layer is arranged on one side, away from the lower insulating ink layer, of the lower conductive carbon layer, the lower conductive carbon layer covers the lower metal wire layer, and the lower conductive carbon layer is electrically connected with the lower metal wire layer; and the lower base material layer is arranged on one side of the lower metal wire layer, which is far away from the lower conductive carbon layer.
As a further improvement of the above technical solution, the upper conductive carbon layer and the lower conductive carbon layer each include a gold finger area carbon line and a wire area carbon line, the gold finger area carbon line is electrically connected to the wire area carbon line, the wire area carbon line is electrically connected to the panel assembly, and a width of the gold finger area carbon line is greater than or equal to a width of the wire area carbon line.
As a further improvement of the technical scheme, the gold finger area carbon wire is provided with an anti-oxidation gold finger conductive contact piece.
As a further improvement of the above technical solution, the panel assembly includes a panel indication layer and a panel wire layer, the panel indication layer covers the panel wire layer, and the panel wire layer is electrically connected to the wire area carbon wire.
As a further improvement of the above technical solution, an adhesive layer for adhesion is provided between the upper insulating ink layer and the lower insulating ink layer.
As a further improvement of the technical scheme, the upper substrate layer and the lower substrate layer are both made of PET, and the thicknesses of the upper substrate layer and the lower substrate layer are both 0.1-0.15 mm.
As a further improvement of the above technical solution, the upper metal wire layer and the lower metal wire layer are both made of conductive silver paste.
As a further improvement of the above technical solution, a protective film is adhered to an outer surface of the panel assembly.
A microwave oven comprises a microwave oven body, wherein the microwave oven body is provided with the corrosion-resistant membrane switch.
An oven comprising an oven body provided with a corrosion resistant membrane switch as described above.
The corrosion-resistant membrane switch, the microwave oven and the oven at least have the following beneficial effects: the chemical stability on electrically conductive carbon layer is high than the chemical stability on metal wire layer, utilize electrically conductive carbon layer to cover metal wire layer, when metal wire layer is polluted or the fish tail in production and processing process, or when there is the unable fine defect of discovering of quality control in the metal wire layer and lead to the circuit disconnection, or when membrane switch's metal wire layer is corroded and electrically conductive carbon layer is not corroded again, electrically conductive carbon layer can keep the state of switching on, membrane switch's circuit keeps switching on, guarantee membrane switch's normal work, thereby prolong membrane switch's life.
Drawings
The utility model is further explained with the attached drawings and the embodiments;
fig. 1 is a schematic structural diagram of the membrane switch of the present invention;
fig. 2 is a schematic structural view of the lead-out wire assembly of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of the lead-out assembly of the present invention;
fig. 4 is a schematic structural view of the upper conductive carbon layer of the present invention;
fig. 5 is a system block diagram of the panel assembly of the present invention;
fig. 6 is a schematic view of the structure of the adhesive layer of the present invention;
fig. 7 is a schematic structural view of the protective film of the present invention;
reference numbers in the figures:
100-panel component, 110-panel indication layer, 120-panel conducting layer, 130-protective film, 200-lead-out wire component, 300-upper substrate layer, 400-upper metal conducting layer, 500-upper conductive carbon layer, 510-golden finger area carbon wire, 511-golden finger conductive contact piece, 520-conducting wire area carbon wire, 610-upper insulating ink layer, 620-lower insulating ink layer, 630-adhesive layer, 700-lower conductive carbon layer, 800-lower metal conducting layer and 900-lower substrate layer.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than or equal to, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
In some embodiments of the present invention, as shown in fig. 1 to 3, a corrosion-resistant membrane switch includes a panel assembly 100 and a lead-out wire assembly 200 electrically connected to the panel assembly 100, wherein the lead-out wire assembly 200 includes:
an upper substrate layer 300;
an upper metal wire layer 400, the upper metal wire layer 400 being disposed at one side of the upper substrate layer 300;
an upper conductive carbon layer 500, wherein the upper conductive carbon layer 500 is disposed on one side of the upper metal wire layer 400 far away from the upper substrate layer 300, the upper conductive carbon layer 500 covers the upper metal wire layer 400, and the upper conductive carbon layer 500 is electrically connected with the upper metal wire layer 400;
an upper insulating ink layer 610, wherein the upper insulating ink layer 610 is arranged on one side of the upper conductive carbon layer 500 away from the upper metal wire layer 400;
a lower insulating ink layer 620, wherein the lower insulating ink layer 620 is arranged on one side of the upper insulating ink layer 610 far away from the upper conductive carbon layer 500;
a lower conductive carbon layer 700, the lower conductive carbon layer 700 being disposed on a side of the lower insulating ink layer 620 away from the upper insulating ink layer 610;
a lower metal wire layer 800, wherein the lower metal wire layer 800 is disposed on a side of the lower conductive carbon layer 700 away from the lower insulating ink layer 620, the lower conductive carbon layer 700 covers the lower metal wire layer 800, and the lower conductive carbon layer 700 is electrically connected to the lower metal wire layer 800;
a lower substrate layer 900, wherein the lower substrate layer 900 is disposed on a side of the lower metal wire layer 800 away from the lower conductive carbon layer 700.
In the above embodiment, the conductive carbon layer has a chemical stability higher than that of the metal wire layer, the upper conductive carbon layer 500 covers the upper metal wire layer 400, the lower conductive carbon layer 700 covers the lower metal wire layer 800, and when the lead-out wire assembly 200 is corroded by using a corrosion solvent, the upper insulating ink layer 610 or the upper metal wire layer 400 is corroded, but the upper conductive carbon layer 500 is not corroded, and the upper circuit of the membrane switch is kept conductive under the action of the upper conductive carbon layer 500; when the lower insulating ink layer 620 or the lower metal wire layer 800 is corroded and the lower conductive carbon layer 700 is not corroded, the lower circuit of the membrane switch is kept conducted under the action of the lower conductive carbon layer 700, so that the normal work of the membrane switch is ensured, and the service life of the membrane switch is prolonged.
In some embodiments of the present invention, as shown in fig. 4, the upper conductive carbon layer 500 and the lower conductive carbon layer 700 both include a gold finger area carbon line 510 and a wire area carbon line 520, the gold finger area carbon line 510 is electrically connected to the wire area carbon line 520, the wire area carbon line 520 is electrically connected to the panel assembly 100, and the width of the gold finger area carbon line 510 is greater than or equal to the width of the wire area carbon line 520. Through this embodiment, manufacturing cost can be saved to the width of regional carbon line 520 of wire is less, and the validity of communication can be guaranteed to the width of regional carbon line 510 of golden finger is great to guarantee membrane switch's normal work.
In some embodiments of the present invention, as shown in fig. 4, the gold finger area carbon line 510 is provided with gold finger conductive contact pads 511 for preventing oxidation. With this embodiment, the golden finger conductive contact 511 has strong oxidation resistance and conductivity, thereby ensuring the normal operation of the membrane switch.
In some embodiments of the present invention, as shown in fig. 5, the panel assembly 100 includes a panel indication layer 110 and a panel conductor layer 120, the panel indication layer 110 covers the panel conductor layer 120, and the panel conductor layer 120 is electrically connected to the conductor region carbon wire 520. Through the pressing of panel indicating layer 110, panel wire layer 120 produces the signal of telecommunication, utilizes regional carbon wire 520 of wire with the signal of telecommunication feedback to remote controller, through this embodiment, has guaranteed membrane switch's normal work.
In some embodiments of the present invention, as shown in fig. 6, an adhesive layer 630 for adhesion is disposed between the upper insulating ink layer 610 and the lower insulating ink layer 620. Through this embodiment, in the production process of outlet subassembly 200, to going up substrate layer 300, going up metal wire layer 400, go up conductive carbon layer 500 and go up insulating ink layer 610 and produce, to producing substrate layer 900 down, metal wire layer 800 down, conductive carbon layer 700 down and insulating ink layer 620 down, at last through the bonding of viscose layer 630, separately two parts are produced, can increase the fault-tolerant rate of production process, reduction in production cost.
In some embodiments of the present invention, as shown in fig. 3, the upper substrate layer 300 and the lower substrate layer 900 are made of PET, and the thickness of the upper substrate layer 300 and the lower substrate layer 900 is 0.1 to 0.15 mm. PET is a milky white or pale yellow highly crystalline polymer with smooth and glossy surface; creep resistance, fatigue resistance, abrasion resistance, good dimensional stability, small abrasion and high hardness, and has the maximum toughness in thermoplastic plastics: the electric insulation performance is good, and the influence of temperature is small; the thin film switch has the advantages of no toxicity, good weather resistance, good chemical resistance stability, low water absorption, weak acid resistance and organic solvent resistance, and the service life of the thin film switch is effectively prolonged through the embodiment.
In some embodiments of the present invention, as shown in fig. 3, the upper metal wire layer 400 and the lower metal wire layer 800 are made of conductive silver paste. The conductive silver paste has the characteristics of low curing temperature, high bonding strength, stable electrical property, suitability for screen printing and the like, and the normal work of the membrane switch is effectively ensured through the embodiment.
In some embodiments of the present invention, as shown in fig. 7, a protective film 130 is adhered to the outer surface of the panel assembly 100. The panel assembly 100 is easily scratched in the production and transportation process, so that the user experience is affected, and through the embodiment, the protective film 130 prevents the panel assembly 100 from being scratched.
In some embodiments of the present invention, a microwave oven includes a microwave oven body, and the microwave oven body is provided with the above corrosion-resistant membrane switch.
It can be understood that, since the microwave oven of the present embodiment is provided with the corrosion-resistant membrane switch of any one of the above embodiments, the microwave oven of the present embodiment has the advantages brought by the corrosion-resistant membrane switch of any one of the above embodiments.
In some embodiments of the present invention, an oven includes an oven body, the oven body is provided with the corrosion-resistant membrane switch as above.
It can be understood that, since the oven of the present embodiment is provided with the corrosion-resistant membrane switch of any one of the above embodiments, the oven of the present embodiment has the advantages brought by the corrosion-resistant membrane switch of any one of the above embodiments.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.
Claims (10)
1. A corrosion-resistant membrane switch, includes panel assembly and with panel assembly electric connection's lead-out wire subassembly, its characterized in that, the lead-out wire subassembly includes:
an upper substrate layer;
the upper metal wire layer is arranged on one side of the upper base material layer;
the upper conductive carbon layer is arranged on one side, far away from the upper base material layer, of the upper metal wire layer, covers the upper metal wire layer, and is electrically connected with the upper metal wire layer;
the upper insulating ink layer is arranged on one side, away from the upper metal wire layer, of the upper conductive carbon layer;
the lower insulating ink layer is arranged on one side, away from the upper conductive carbon layer, of the upper insulating ink layer;
the lower conductive carbon layer is arranged on one side, away from the upper insulating ink layer, of the lower insulating ink layer;
the lower metal wire layer is arranged on one side, away from the lower insulating ink layer, of the lower conductive carbon layer, the lower conductive carbon layer covers the lower metal wire layer, and the lower conductive carbon layer is electrically connected with the lower metal wire layer;
and the lower base material layer is arranged on one side of the lower metal wire layer, which is far away from the lower conductive carbon layer.
2. The corrosion-resistant membrane switch of claim 1, wherein the upper conductive carbon layer and the lower conductive carbon layer each comprise a gold finger area carbon line and a wire area carbon line, the gold finger area carbon line is electrically connected to the wire area carbon line, the wire area carbon line is electrically connected to the panel assembly, and a width of the gold finger area carbon line is greater than or equal to a width of the wire area carbon line.
3. A corrosion resistant membrane switch in accordance with claim 2 wherein said gold finger area carbon line is provided with gold finger conductive contacts for oxidation resistance.
4. The corrosion resistant membrane switch of claim 2, wherein said panel assembly comprises a panel indicating layer and a panel wire layer, said panel indicating layer covering said panel wire layer, said panel wire layer being electrically connected to said wire area carbon wire.
5. The corrosion-resistant membrane switch of claim 1, wherein an adhesive layer for adhesion is disposed between the upper insulating ink layer and the lower insulating ink layer.
6. The corrosion-resistant membrane switch of claim 1, wherein said upper substrate layer and said lower substrate layer are made of PET, and both of said upper substrate layer and said lower substrate layer have a thickness of 0.1 to 0.15 mm.
7. The corrosion-resistant membrane switch of claim 1, wherein said upper metal wire layer and said lower metal wire layer are made of conductive silver paste.
8. A corrosion resistant membrane switch according to claim 1 wherein a protective foil is adhered to the outer surface of said faceplate assembly.
9. A microwave oven comprising a microwave oven body, wherein the microwave oven body is provided with a corrosion-resistant membrane switch according to any one of claims 1 to 8.
10. An oven comprising an oven body, characterized in that the oven body is provided with a corrosion resistant membrane switch according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020975234.9U CN212342517U (en) | 2020-06-01 | 2020-06-01 | Corrosion-resistant membrane switch, microwave oven and oven |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020975234.9U CN212342517U (en) | 2020-06-01 | 2020-06-01 | Corrosion-resistant membrane switch, microwave oven and oven |
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| CN212342517U true CN212342517U (en) | 2021-01-12 |
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| CN202020975234.9U Active CN212342517U (en) | 2020-06-01 | 2020-06-01 | Corrosion-resistant membrane switch, microwave oven and oven |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI795882B (en) * | 2021-08-23 | 2023-03-11 | 致伸科技股份有限公司 | Keycap structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI795882B (en) * | 2021-08-23 | 2023-03-11 | 致伸科技股份有限公司 | Keycap structure |
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