CN213583582U

CN213583582U - Film switch capable of being matched with each other

Info

Publication number: CN213583582U
Application number: CN202022358475.1U
Authority: CN
Inventors: 谭炬
Original assignee: Dongguan Singway Electronic Technology Co ltd
Current assignee: Dongguan Singway Electronic Technology Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-29
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a membrane switch that can arrange each other, including the membrane switch body, the membrane switch body includes upper circuit board, insulating layer and lower floor's circuit board, the insulating layer sets up between upper circuit board and lower floor's circuit board, upper circuit board bottom electric connection has first plug, lower floor's circuit board top electric connection has the second plug, first plug and second plug electric connection peg graft; the upper circuit board comprises a substrate and a thin film layer, the thin film layer is arranged on the upper surface of the substrate, the joint between the substrate and the insulating layer is fixed, the insulating layer and the lower circuit board are connected in a clamped mode, a first groove is formed in the middle position of the bottom surface of the insulating layer, six groups of spring plungers are symmetrically arranged on the two sides of the insulating layer, a second groove is formed in the middle position of the top of the lower circuit board, a through hole and the spring plungers are matched and arranged, the matching degree requirement when silver wires are printed is reduced, gluing and line printing are not needed, and production cost is.

Description

Film switch capable of being matched with each other

Technical Field

The utility model relates to a membrane switch technical field specifically is a membrane switch that can arrange each other.

Background

At present, a membrane switch is an operating system integrating a key function, an indicating element and an instrument panel. The circuit board consists of four parts, including a panel, an upper circuit, an isolating layer and a lower circuit. When the membrane switch is pressed down, the contact of the upper circuit deforms downwards to be in contact with the polar plate of the lower circuit for conduction, after the finger is loosened, the contact of the upper circuit rebounds, the circuit is disconnected, and the loop triggers a signal. The membrane switch has the advantages of rigorous structure, attractive appearance and good sealing property. Has the characteristics of moisture resistance, long service life and the like. The method 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 membrane switch is also called as a touch keyboard, adopts an integral sealing structure formed by combining a plurality of layers of planes, is a novel integrated light-collecting, mechanical and electrical electronic component which seals a key switch, a panel, a mark, a symbol display and a lining plate together, is a fundamental change of the appearance structure of an electronic product, can replace the keys of conventional discrete components, and can more reliably execute the task of an operating system.

The existing membrane switch adopts a three-layer structure and comprises an upper-layer circuit board, an insulating layer and a lower-layer circuit board, wherein the upper-layer circuit board and the lower-layer circuit board comprise a substrate and a printed silver wire circuit, the upper-layer circuit board and the insulating layer and the lower-layer circuit board are laminated through glue, the production process comprises an upper-layer printed silver wire, a lower-layer printed silver wire, a jumper and a gluing layer, the production process is more, the cost is higher, the matching degree of the circuit is higher during the printing of the silver wire, and the improvement of the production efficiency is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a membrane switch that can arrange each other makes two liang of mutual joints of base plate of upper circuit board, insulating layer and lower floor's circuit board respectively to utilize plug electric connection, reduce the matching degree requirement when printing silver-colored line, need not veneer, line, reduction in production cost, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a membrane switch capable of being matched with each other comprises a membrane switch body, wherein the membrane switch body comprises an upper layer circuit board, an insulating layer and a lower layer circuit board, the insulating layer is arranged between the upper layer circuit board and the lower layer circuit board, the bottom of the upper layer circuit board is electrically connected with a first plug, the top of the lower layer circuit board is electrically connected with a second plug, and the first plug and the second plug are electrically connected in an inserting manner;

the upper circuit board comprises a substrate and a thin film layer, the thin film layer is arranged on the upper surface of the substrate, the substrate and the insulating layer are fixedly clamped, and the insulating layer and the lower circuit board are fixedly clamped.

Preferably, a first groove is formed in the center of the bottom surface of the insulating layer.

Preferably, the insulating layer bilateral symmetry is provided with six groups of spring plunger, the second recess has been seted up to lower floor's circuit board top position placed in the middle, the through-hole has all been seted up to second recess inner wall both sides, through-hole and spring plunger match the setting.

Preferably, the four corners of the bottom of the substrate are provided with clamping blocks, hanging lugs are arranged on two sides of each clamping block, clamping grooves are symmetrically arranged at the top of the lower-layer circuit board, and the clamping grooves and the hanging lugs are arranged in a matched mode.

Preferably, the first plug is electrically connected to a first cable, and the first cable is electrically connected to the substrate.

Preferably, the second plug is electrically connected with a second cable, and the second cable is electrically connected with the lower circuit board.

Compared with the prior art, the beneficial effects of the utility model are that:

the substrates of the upper circuit board, the insulating layer and the lower circuit board are clamped with each other pairwise respectively, and the matching degree requirement when silver wires are printed is reduced by utilizing the electric connection of the plugs, so that gluing and line printing are not needed, and the production cost is reduced.

Drawings

Fig. 1 is a schematic view of a cross-sectional structure of a membrane switch of the present invention;

fig. 2 is a schematic view of a partial cross-sectional structure of a membrane switch of the present invention;

fig. 3 is a schematic view of the internal overlooking cross-sectional structure of the membrane switches of the present invention.

In the figure: 1. a membrane switch body; 101. an upper layer circuit board; 102. an insulating layer; 103. a lower layer circuit board; 104. a first plug; 105. a second plug; 106. a first cable; 107. a second cable; 2. A substrate; 3. a thin film layer; 4. a spring plunger; 5. a second groove; 6. a through hole; 7. a clamping block; 8. a card slot; 9. a first groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a membrane switch that can arrange each other, including membrane switch body 1, membrane switch body 1 includes upper circuit board 101, insulating layer 102 and lower floor's circuit board 103, insulating layer 102 sets up between upper circuit board 101 and lower floor's circuit board 103, upper circuit board 101 bottom electric connection has first plug 104, lower floor's circuit board 103 top electric connection has second plug 105, first plug 104 and second plug 105 electric connection, first plug 104 electric connection has first cable 106, first cable 106 and base plate 2 electric connection, second plug 105 electric connection has second cable 107, second cable 107 and lower floor's circuit board 103 electric connection, insulating layer 102 bottom surface position placed in the middle has seted up first recess 9, it is convenient for providing for first plug 104 and second plug 105 and places the space to set up recess 9.

Upper circuit board 101 includes base plate 2 and thin layer 3, and thin layer 3 sets up in base plate 2 upper surface, and the joint is fixed between base plate 2 and the insulating layer 102, and insulating layer 102 bilateral symmetry is provided with six groups of spring plunger 4, and second recess 5 has been seted up to lower floor's circuit board 103 top position placed in the middle, and through-hole 6 has all been seted up to 5 inner wall both sides of second recess, and through-hole 6 and spring plunger 4 match the setting.

Insulating layer 102 and lower floor's circuit board 103 joint are fixed, and 2 bottom four corners of base plate all are provided with fixture block 7, and fixture block 7 both sides are provided with hangers 701, and lower floor's circuit board 103 top symmetry is provided with draw-in groove 8, and draw-in groove 8 and hangers 701 match the setting.

The substrate circuit and the control button in the membrane switch body 1 are well known in the art, and are not described herein again.

The structure principle is as follows: the membrane switch body 1 comprises an upper-layer circuit board 101, an insulating layer 102 and a lower-layer circuit board 103, wherein the upper-layer circuit board 101 comprises a substrate 2 and a membrane layer 3, the substrate 2 and the insulating layer 102 are clamped and fixed respectively, the insulating layer 102 and the lower-layer circuit board 103 are clamped and fixed, and a first plug 104 and a second plug 105 are electrically connected, so that the matching degree requirement when silver wires are printed is reduced, gluing and strip lines are not needed, and the production cost is reduced.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a membrane switch that can match each other, includes membrane switch body (1), its characterized in that: the membrane switch body (1) comprises an upper-layer circuit board (101), an insulating layer (102) and a lower-layer circuit board (103), wherein the insulating layer (102) is arranged between the upper-layer circuit board (101) and the lower-layer circuit board (103), the bottom of the upper-layer circuit board (101) is electrically connected with a first plug (104), the top of the lower-layer circuit board (103) is electrically connected with a second plug (105), and the first plug (104) and the second plug (105) are electrically connected in an inserted manner;

the upper circuit board (101) comprises a substrate (2) and a thin film layer (3), the thin film layer (3) is arranged on the upper surface of the substrate (2), the clamping connection between the substrate (2) and the insulating layer (102) is fixed, and the insulating layer (102) and the lower circuit board (103) are clamped and fixed.

2. The membrane switch of claim 1, wherein: a first groove (9) is formed in the center of the bottom surface of the insulating layer (102).

3. The membrane switch of claim 1, wherein: insulating layer (102) bilateral symmetry is provided with six groups of spring plunger (4), second recess (5) have been seted up to lower floor's circuit board (103) top position placed in the middle, through-hole (6) have all been seted up to second recess (5) inner wall both sides, through-hole (6) and spring plunger (4) match the setting.

4. The membrane switch of claim 1, wherein: the novel printed circuit board is characterized in that four corners of the bottom of the base plate (2) are provided with clamping blocks (7), hanging lugs (701) are arranged on two sides of each clamping block (7), clamping grooves (8) are symmetrically arranged at the tops of the lower-layer circuit boards (103), and the clamping grooves (8) are matched with the hanging lugs (701).

5. The membrane switch of claim 1, wherein: the first plug (104) is electrically connected with a first cable (106), and the first cable (106) is electrically connected with the substrate (2).

6. The membrane switch of claim 1, wherein: the second plug (105) is electrically connected with a second cable (107), and the second cable (107) is electrically connected with the lower layer circuit board (103).