CN216773113U

CN216773113U - Thin film switch with high sealing performance

Info

Publication number: CN216773113U
Application number: CN202123186743.7U
Authority: CN
Inventors: 罗业伟
Original assignee: Shenzhen Ruisibo Technology Co ltd
Current assignee: Shenzhen Ruisibo Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-06-17
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a membrane switch with high sealing property, which belongs to the technical field of membrane switches, and comprises an electric plate, a panel and an elastic rubber sealing frame, wherein the electric plate and the panel are respectively bonded on two sides of the elastic rubber sealing frame; the membrane switch can keep the air inside dry, reduce the occurrence of inside water vapor and further prolong the service life.

Description

Thin film switch with high sealing performance

Technical Field

The utility model belongs to the technical field of membrane switches, and particularly relates to a membrane switch with high sealing performance.

Background

The membrane switch is an operation system integrating a key function, an indicating element and an instrument panel into a whole, and consists of four parts, namely a panel, an upper circuit, an isolating layer and a lower circuit, when the membrane switch is pressed down, a contact of the upper circuit deforms downwards and is in contact conduction with a polar plate of the lower circuit, after a finger is loosened, the contact of the upper circuit rebounds, the circuit is disconnected, and a signal is triggered by a loop.

Aiming at the problems that the existing membrane switch causes the phenomenon of water vapor in the membrane switch due to poor sealing property when in use, damages are caused to the membrane switch, and the service life of the membrane switch is shortened, the membrane switch with high sealing property is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a membrane switch with high sealing performance, which can keep the air inside dry, reduce the occurrence of water vapor inside and further prolong the service life.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a membrane switch with high leakproofness, this membrane switch with high leakproofness includes electroplax, panel, the sealed frame of elastic rubber, the electroplax with the panel bonds respectively the both sides of the sealed frame of elastic rubber, the sealed frame of elastic rubber is equipped with sealed gasbag with the electroplax junction, and sealed gasbag bonds between the sealed frame of elastic rubber and the electroplax, the sealed frame of elastic rubber is equipped with the panel junction equally sealed gasbag bonds between sealed gasbag, sealed gasbag and the sealed frame of elastic rubber and the panel, the sealed frame side of elastic rubber still is equipped with dry subassembly.

Furthermore, an air guide pipe is connected between the two sealed air bags, an air inlet pipe is fixed on the side face of the air guide pipe, one end of the air inlet pipe extends out of the elastic rubber sealing frame, and an air valve is fixed at the extending end.

Furthermore, still be fixed with the rubber pole of contradicting on the air-tight bag, be connected with the spring between the rubber pole of contradicting of two relative settings, the rubber pole of contradicting sets up along four corners of elasticity rubber seal frame.

Furthermore, the drying component comprises an air channel fixed on the side face of the elastic rubber sealing frame, a connecting seat is fixed on the outer side of one end of the air channel, arc-shaped plates are hinged to two ends of the connecting seat, the number of the connecting seats is four, and the four arc-shaped plates can form a complete round shape.

Furthermore, a torsion spring is fixed between the connecting seat and the arc-shaped plate and symmetrically arranged in the middle of the connecting seat.

Furthermore, the air passages are arranged on the elastic rubber sealing frame, the arc-shaped plate end on one air passage faces the inside of the elastic rubber sealing frame, and the arc-shaped plate end on the other air passage faces the outside of the elastic rubber sealing frame.

The utility model has the beneficial effects that:

1. the sealing air bag is tightly attached to the joint of the elastic rubber sealing frame in an inflated state, so that the overall sealing performance is improved.

2. An elastic structure of a spring is further arranged between the two sealed air bags, so that the sealed air bags can be further abutted and further tightly attached.

3. By means of the arrangement of the two air channels, the sealing state is kept when the air is not ventilated, moisture in the membrane switch can be removed after the air is ventilated, the interior is kept dry, and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a membrane switch with high sealing performance according to the present invention;

FIG. 2 is a schematic view of the internal structure of an elastic rubber sealing frame of a membrane switch with high sealing performance according to the present invention;

FIG. 3 is an enlarged schematic view of a membrane switch with high sealing performance according to the present invention at I in FIG. 2;

fig. 4 is an enlarged schematic view of the membrane switch with high sealing performance, shown at II in fig. 2.

In the figure: 1. an electric board; 2. a panel; 3. an elastic rubber seal frame; 4. sealing the air bag; 5. a drying assembly; 6. an air duct; 7. an air inlet pipe; 8. a gas valve; 9. against the rubber rod; 10. a spring; 11. an air passage; 12. a connecting seat; 13. an arc-shaped plate; 14. a torsion spring.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, a membrane switch with high sealing performance according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the membrane switch with high sealing performance comprises an electric plate 1, a panel 2 and an elastic rubber sealing frame 3, wherein the electric plate 1 and the panel 2 are respectively bonded on two sides of the elastic rubber sealing frame 3, a sealing air bag 4 is arranged at the joint of the elastic rubber sealing frame 3 and the electric plate 1, the sealing air bag 4 is bonded between the elastic rubber sealing frame 3 and the electric plate 1, the sealing air bag 4 is also arranged at the joint of the elastic rubber sealing frame 3 and the panel 2, the sealing air bag 4 is bonded between the elastic rubber sealing frame 3 and the panel 2, and a drying assembly 5 is further arranged on the side surface of the elastic rubber sealing frame 3.

Specifically, two be connected with air duct 6 between the sealed gasbag 4, air duct 6 side is fixed with intake pipe 7, and the sealed frame 3 of elasticity rubber is stretched out to intake pipe 7 one end, and the end that stretches out is fixed with air valve 8.

Specifically, still be fixed with conflict rubber pole 9 on the air-tight bag 4, be connected with spring 10 between the conflict rubber pole 9 of two relative settings, conflict rubber pole 9 sets up along four corners of elasticity rubber seal frame 3.

The sealing air bag 4 is inflated towards the air inlet pipe 7 through the air valve 8, so that the sealing air bag 4 can be tightly attached between the elastic rubber sealing frame 3 and the electric plate 1 and the panel 2 for sealing.

Specifically, the drying component 5 comprises an air channel 11 fixed on the side surface of the elastic rubber sealing frame 3, a connecting seat 12 is fixed on the outer side of one end of the air channel 11, two ends of the connecting seat 12 are hinged with arc-shaped plates 13, the number of the connecting seats 12 is four, and the four arc-shaped plates 13 can form a complete circular shape.

Wherein, a torsion spring 14 is fixed between the connecting seat 12 and the arc-shaped plate 13, and the torsion springs 14 are symmetrically arranged about the middle of the connecting seat 12.

Under torsional spring 14's resilience effect, 1 arc 13 can be automatic closure, forms circular form, covers whole air passage 11, reduces the outflow of air, and when air admission air passage 11, can push open arc 13, opens air passage 11, ventilates 3 insides of elastic rubber seal frame, in regular time, continuously ventilates the back, and 3 insides of elastic rubber seal frame keep dry.

For the air passages 11, two air passages 11 are arranged on the elastic rubber sealing frame 3, wherein the end of the arc-shaped plate 13 on one air passage 11 is arranged towards the inside of the elastic rubber sealing frame 3, and the end of the arc-shaped plate 13 on the other air passage 11 is arranged towards the outside of the elastic rubber sealing frame 3.

With the above arrangement, one air passage 11 is an air inlet, and the other air passage 11 is an air outlet.

The working principle of the utility model is as follows: through aerifing sealed gasbag 4, make it hug closely and between elasticity rubber seal frame 3 and electroplax 1 and panel 2, improve the compactness, utilize two air passage 11 to ventilate regularly simultaneously, reduce the inside steam of elasticity rubber seal frame 3, keep inside dry.

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

1. The utility model provides a membrane switch with high leakproofness, its characterized in that, this membrane switch with high leakproofness includes electroplax (1), panel (2), the sealed frame of elastic rubber (3), electroplax (1) with panel (2) bond respectively the both sides of the sealed frame of elastic rubber (3), the sealed frame of elastic rubber (3) is equipped with sealed gasbag (4) with electroplax (1) junction, and sealed gasbag (4) bond between sealed frame of elastic rubber (3) and electroplax (1), the sealed frame of elastic rubber (3) is equipped with panel (2) junction sealed gasbag (4) equally, bonds between sealed gasbag (4) and the sealed frame of elastic rubber (3) and panel (2), the sealed frame of elastic rubber (3) side still is equipped with drying assembly (5).

2. The membrane switch with high sealing performance according to claim 1, wherein an air duct (6) is connected between the two sealing air bags (4), an air inlet pipe (7) is fixed on the side surface of the air duct (6), one end of the air inlet pipe (7) extends out of the elastic rubber sealing frame (3), and an air valve (8) is fixed on the extending end.

3. The membrane switch with high sealing performance according to claim 1, wherein the sealing air bag (4) is further fixed with an abutting rubber rod (9), a spring (10) is connected between two opposing abutting rubber rods (9), and the abutting rubber rods (9) are arranged along four corners of the elastic rubber sealing frame (3).

4. The membrane switch with high sealing performance according to claim 1, wherein the drying component (5) comprises an air channel (11) fixed on the side surface of the elastic rubber sealing frame (3), a connecting seat (12) is fixed on the outer side of one end of the air channel (11), two ends of the connecting seat (12) are hinged with arc-shaped plates (13), the number of the connecting seat (12) is four, and the four arc-shaped plates (13) can form a complete round shape.

5. The membrane switch with high sealing performance according to claim 4, wherein a torsion spring (14) is fixed between the connecting seat (12) and the arc-shaped plate (13), and the torsion spring (14) is symmetrically arranged about the middle of the connecting seat (12).

6. The membrane switch with high sealing performance according to claim 4, wherein the number of the air channels (11) is two on the elastic rubber sealing frame (3), wherein the arc-shaped plate (13) end on one air channel (11) is arranged towards the inside of the elastic rubber sealing frame (3), and the arc-shaped plate (13) end on the other air channel (11) is arranged towards the outside of the elastic rubber sealing frame (3).