CN216054421U - Durable membrane switch of high leakproofness - Google Patents
Durable membrane switch of high leakproofness Download PDFInfo
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- CN216054421U CN216054421U CN202122557184.XU CN202122557184U CN216054421U CN 216054421 U CN216054421 U CN 216054421U CN 202122557184 U CN202122557184 U CN 202122557184U CN 216054421 U CN216054421 U CN 216054421U
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Abstract
The utility model relates to a durable membrane switch with high sealing property, which is characterized by comprising a surface membrane layer, insulating materials and strip-shaped bulges, wherein the surface membrane layer is sequentially arranged from top to bottom and is integrally formed with the strip-shaped bulges in array distribution; the surface adhesive layer is attached to the bottom surface of the surface film layer, one part of the bottom surface of the surface adhesive layer is attached to the circuit layer, and the other part of the bottom surface of the surface adhesive layer is attached to the back adhesive layer; the circuit layer is attached between the surface adhesive layer and the back adhesive layer; the back adhesive layer is attached to the bottom surfaces of the circuit layer and the surface adhesive layer; a transparent protective film is attached to the surface film layer, and release paper is attached to the bottom surface of the back adhesive layer; the circuit layer is by last circuit layer, isolation layer, wire layer, conducting layer and the insulating layer of including in proper order under to, the silk screen has conductive silver thick liquid on the wire layer, the silk screen has conductive carbon thick liquid and its cover in on the conducting layer the bottom surface on wire layer and with wire layer electric connection.
Description
Technical Field
The utility model relates to the field of membrane switches, in particular to a durable membrane switch with high sealing property.
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 leakproofness of current membrane switch owing to threading head department is poor, leads to inside dust impurity gets into membrane switch easily when the product is used, influences the normal use of product, and the structure on circuit layer is simple relatively, also lacks the protection simultaneously, consequently the reliability in complex environment and permanent use is not good, and life is shorter. It is desirable to provide a durable membrane switch having high sealing performance.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems and overcome the defects in the prior art, the utility model provides a durable membrane switch with high sealing property, which sequentially comprises a surface membrane layer from top to bottom, wherein the surface membrane layer is made of an insulating material and is integrally formed with strip-shaped bulges which are distributed in an array manner; the surface adhesive layer is attached to the bottom surface of the surface film layer, one part of the bottom surface of the surface adhesive layer is attached to the circuit layer, and the other part of the bottom surface of the surface adhesive layer is attached to the back adhesive layer; the circuit layer is attached between the surface adhesive layer and the back adhesive layer; the back adhesive layer is attached to the bottom surfaces of the circuit layer and the surface adhesive layer; a transparent protective film is attached to the surface film layer, and release paper is attached to the bottom surface of the back adhesive layer; the circuit layer by last circuit layer, isolation layer, wire layer, conducting layer and the insulating layer of including in proper order under to, the bottom surface on circuit layer be equipped with the elastic insulation lug that the protruding bud of bar corresponds, be equipped with on the isolation layer with the through-hole that insulating lug corresponds, the silk screen has electrically conductive silver thick liquid on the wire layer, the silk screen has electrically conductive carbon thick liquid and its cover in on the conducting layer the bottom surface on wire layer and with wire layer electric connection, the insulating layer dispose in the below of conducting layer and with the gum layer laminating is connected.
Furthermore, the circuit layer further comprises a leading-out flat cable, a flat cable groove is formed in one side end portion of the insulating layer and the back adhesive layer, the leading-out flat cable is provided with a body portion and an extension portion, the body portion is electrically connected with the conductive layer, the extension portion extends to the outside of the back adhesive layer through the flat cable groove, and RTV silicon rubber is filled in a gap between the extension portion and the flat cable groove.
Further, the insulating material is paper, polyester or PET.
Further, the conductive carbon paste and the conductive silver paste are one or a mixture of more than two of copper, aluminum, carbon and silver.
Further, the insulating layer adopts insulating ink.
Further, the isolation layer, the back glue layer and the surface glue layer are all made of PET double-faced adhesive tapes.
Furthermore, the circuit layer, the lead layer and the conductive layer are all made of polyester films, and conductive silver paste is silk-printed on the circuit layer.
Furthermore, the elastic insulation bump is made of rubber and is adhered to the bottom surface of the circuit layer through RTV silicon rubber.
Compared with the prior art, the utility model has the following beneficial effects: 1. through setting up the conducting layer for when membrane switch's insulating layer and wire layer were corroded or were damaged, membrane switch's circuit still remained to switch on, had guaranteed membrane switch's normal work, had promoted stability, had prolonged membrane switch's life. The arrangement of the strip-shaped convex bracts enables the membrane switch to be triggered more smoothly, the arrangement of the transparent protective film and the release paper provides effective protection for the membrane switch, the membrane switch can be dustproof and waterproof, the storage time is prolonged, and the membrane switch can be assembled only by tearing the release paper when in use; 2. the application of the wiring groove matched with RTV silicon rubber improves the sealing performance of the membrane switch, is beneficial to dust prevention and water prevention, and can greatly prolong the service life of the membrane switch; 3. the insulating layer is arranged to provide protection for the circuit layer, so that the circuit layer can be effectively prevented from being corroded or being failed due to mold invasion; 4. through setting up the insulating lug of elasticity, provide supplementaryly for pressing of mask layer, be favorable to the conducting layer to produce the signal of telecommunication, make the signal of telecommunication feedback to remote control ware.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic partial sectional view showing embodiment 1 of the present invention;
FIG. 2 is a schematic rear view of embodiment 1 of the present invention;
in the figure: 1. transparent protection film, 2, mask layer, 3, surface glue layer, 4, circuit layer, 5, isolation layer, 6, elastic insulation lug, 7, wire layer, 8, conducting layer, 9, insulating layer, 10, gum layer, 11, release paper, 12, winding displacement groove, 13, leading-out winding displacement.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1.
Referring to fig. 1 to 2, the present embodiment provides a durable membrane switch with high sealing performance, which includes a mask layer 2, which is made of an insulating material, and has strip-shaped protrusions formed integrally in an array; the face glue layer 3 is attached to the bottom surface of the face glue layer 2, one part of the bottom surface of the face glue layer 3 is attached to the circuit layer, and the other part of the bottom surface of the face glue layer 3 is attached to the back glue layer 10; the circuit layer is attached between the surface adhesive layer 3 and the back adhesive layer 10; the back adhesive layer 10 is attached to the bottom surfaces of the circuit layer and the surface adhesive layer 3; a transparent protective film 1 is attached to the surface film layer 2, and release paper 11 is attached to the bottom surface of the back adhesive layer 10; the circuit layer by last circuit layer 4, isolation layer 5, wire layer 7, conducting layer 8 and insulating layer 9 of including in proper order under to, the bottom surface of circuit layer 4 be equipped with the elastic insulation lug 6 that the protruding bract of bar corresponds, be equipped with on the isolation layer 5 with the through-hole that insulating lug corresponds, the silk-screen has electrically conductive silver thick liquid on the wire layer 7, the silk-screen has electrically conductive carbon thick liquid and its cover in on the conducting layer 8 the bottom surface of wire layer 7 and with 7 electric connection on wire layer, insulating layer 9 dispose in the below of conducting layer 8 and with the laminating of gum layer 10 is connected. In this embodiment, through setting up conducting layer 8 for when membrane switch's insulating layer 9 and wire layer 7 were corroded or were damaged, membrane switch's circuit still remained to switch on, had guaranteed membrane switch's normal work, had promoted stability, had prolonged membrane switch's life. The setting of the protruding bud of bar for it is more smooth and easy to trigger membrane switch, and transparent protection film 1 then provides effective protection for membrane switch with the setting from type paper 11, can be dustproof, waterproof, and has prolonged the save time, when using, only needs to tear off from type paper 11 and can accomplish the assembly.
The circuit layer in this embodiment further includes a lead-out flat cable 13, a flat cable groove 12 is disposed at one side end of the insulating layer 9 and the back adhesive layer 10, the lead-out flat cable 13 has a body portion and an extension portion, the body portion is electrically connected with the conductive layer 8, the extension portion extends to the outside of the back adhesive layer 10 through the flat cable groove 12, and an RTV silicone rubber is filled in a gap between the extension portion and the flat cable groove 12. The wiring groove 12 is matched with the application of RTV silicon rubber, so that the sealing performance of the membrane switch is improved, the dustproof and waterproof effects are facilitated, and the service life of the membrane switch can be greatly prolonged.
The insulating material in this embodiment is paper, polyester, or PET, and preferably, the PET material is selected, and has characteristics of high transparency, high ink adhesion, high elasticity, high toughness, and the like.
The conductive carbon paste and the conductive silver paste in the embodiment are one or a mixture of more than two of copper, aluminum, carbon and silver. Preferably, a mixture of carbon and silver is used.
The insulating layer 9 in this embodiment uses insulating ink. The arrangement of the insulating layer 9 provides protection for the circuit layer, and can effectively prevent the circuit layer from being corroded or being damaged due to mold invasion.
The isolation layer 5, the back glue layer 10 and the face glue layer 3 in this embodiment all adopt PET double-sided adhesive tapes. Isolation layer 5, gum layer 10 and face glue film 3 all adopt the PET double faced adhesive tape, and it is fixed that the convenience is pasted face film layer 2 and circuit layer, and is favorable to waterproof, dustproof, has promoted membrane switch's sealed effect.
The circuit layer 4, the lead layer 7 and the conductive layer 8 in this embodiment are all made of polyester films, and the circuit layer 4 is printed with conductive silver paste by silk screen printing.
The elastic insulation bump 6 in this embodiment is made of rubber and is adhered to the bottom surface of the circuit layer 4 by RTV silicone rubber. Through setting up elastic insulation lug 6, provide supplementary for pressing of mask layer 2, be favorable to conducting layer 8 to produce the signal of telecommunication, make the signal of telecommunication feedback to remote control ware.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A durable membrane switch with high sealing performance is characterized by comprising a membrane switch body and a membrane switch body sequentially from top to bottom
The mask layer (2) is made of an insulating material, and strip-shaped bulges distributed in an array form are integrally formed on the mask layer;
the surface adhesive layer (3) is connected with the bottom surface of the surface film layer (2) in an attaching mode, one part of the bottom surface of the surface adhesive layer (3) is connected with the circuit layer in an attaching mode, and the other part of the bottom surface of the surface adhesive layer (3) is connected with the back adhesive layer (10) in an attaching mode;
the circuit layer is attached between the surface adhesive layer (3) and the back adhesive layer (10); and
the back adhesive layer (10), the back adhesive layer (10) is attached to the bottom surfaces of the circuit layer and the surface adhesive layer (3);
a transparent protective film (1) is attached to the surface film layer (2), and release paper (11) is attached to the bottom surface of the back adhesive layer (10);
the circuit layer by last circuit layer (4), isolation layer (5), wire layer (7), conducting layer (8) and insulating layer (9) of including in proper order under to, the bottom surface of circuit layer (4) be equipped with elastic insulation lug (6) that the protruding bract of bar corresponds, be equipped with on isolation layer (5) with the through-hole that insulating lug corresponds, the silk screen is printed with electrically conductive silver thick liquid on wire layer (7), the silk screen is printed with electrically conductive carbon thick liquid and its cover in on conducting layer (8) the bottom surface of wire layer (7) and with wire layer (7) electric connection, insulating layer (9) dispose in the below of conducting layer (8) and with the gum layer (10) laminating is connected.
2. The durable membrane switch with high sealing performance according to claim 1, wherein the circuit layer further comprises a lead-out flat cable (13), a flat cable groove (12) is formed in one side end portion of the insulating layer (9) and the adhesive backing layer (10), the lead-out flat cable (13) has a body portion and an extension portion, the body portion is electrically connected with the conductive layer (8), the extension portion extends to the outside of the adhesive backing layer (10) through the flat cable groove (12), and an RTV silicon rubber is filled in a gap between the extension portion and the flat cable groove (12).
3. The high-hermeticity durable membrane switch according to claim 1, wherein the insulating material is paper, polyester or PET.
4. The durable membrane switch with high sealing performance according to claim 1, wherein the conductive carbon paste and the conductive silver paste are one or a mixture of two or more of copper, aluminum, carbon and silver.
5. A high-tightness durable membrane switch according to claim 1, characterized in that the insulating layer (9) is made of insulating ink.
6. The durable membrane switch of claim 1, wherein the isolation layer (5), the back adhesive layer (10) and the face adhesive layer (3) are all PET double-sided adhesive tape.
7. The durable membrane switch with high sealing performance of claim 1, wherein the circuit layer (4), the lead layer (7) and the conductive layer (8) are all made of polyester film, and the circuit layer (4) is silk-screened with conductive silver paste.
8. The durable membrane switch with high sealability of claim 1, wherein the elastic insulation bump (6) is made of rubber and is adhered to the bottom surface of the circuit layer (4) by RTV silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557184.XU CN216054421U (en) | 2021-10-25 | 2021-10-25 | Durable membrane switch of high leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557184.XU CN216054421U (en) | 2021-10-25 | 2021-10-25 | Durable membrane switch of high leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216054421U true CN216054421U (en) | 2022-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122557184.XU Active CN216054421U (en) | 2021-10-25 | 2021-10-25 | Durable membrane switch of high leakproofness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216054421U (en) |
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2021
- 2021-10-25 CN CN202122557184.XU patent/CN216054421U/en active Active
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