Membrane switch structure applying serial connection air pressure

Abstract

The utility model relates to the field of membrane switch structures, in particular to a membrane switch structure applying serial connection air pressure, and adopts the technical scheme that the membrane switch structure applying serial connection air pressure comprises a lower line key conductive ink layer, a lower line conductive base layer, a panel layer, a key isolation layer base material, a contact layer and a shell assembly, button grooves distributed at equal intervals are formed in the center of the upper end of the key isolation layer base material, gas buffer grooves are formed between the button grooves, gas storage grooves are formed in the edges of the button grooves located on the left side and the right side of the upper end of the key isolation layer base material, a panel layer is installed at the upper end of the key isolation layer base material, and a contact layer is installed at the lower end of the key isolation layer base material. According to the utility model, the gas storage groove and the gas buffer groove are additionally arranged on the base material of the button isolation layer, and the gas storage and buffer area is additionally arranged beside the button main body, so that the gas beside the button main body can normally circulate to avoid the phenomenon that the gas treads downwards in the sealed button to cause automatic conduction.

Description

Technical Field

[0001] The utility model belongs to the field of membrane switch structures, and particularly relates to an application of a series-connected pneumatic membrane switch structure. Background Technique

[0002] A membrane switch, also known as a tactile keyboard, adopts an overall sealed structure composed of planar multi-layers, and is a new type of electronic component integrating button functions, indicating elements, and instrument panels. The membrane switch has a rigorous structure, beautiful appearance, and good sealing performance. It has the characteristics of moisture-proof and long service life, and is widely used in the fields of electronic communication, electronic measurement instruments, industrial control, medical equipment, automotive industry, intelligent toys, household appliances, etc.

[0003] When the existing pneumatic membrane switch structure is in use, since the buttons of the membrane switch product often need to be connected to allow the gas to flow normally, if the button volume is small and the distance between the buttons is short, the gas is very likely to sag in the sealed button and cause automatic conduction.

[0004] Therefore, aiming at the problem that the gas in the buttons with small volume and short distance is prone to sag in the sealed buttons when the above-mentioned pneumatic membrane switch structure is in use, an application of a series-connected pneumatic membrane switch structure is developed. By adding additional gas storage structures, gas buffer structures, and shell protection structures to the membrane switch structure, the possibility of sagging of small buttons and buttons with short distances during use can be effectively reduced, and the service life of the device can be improved. Content of the Utility Model

[0005] In order to overcome the problem that the buttons of the pneumatic membrane switch structure are prone to sag and cause automatic conduction during use.

[0006] The technical solution of the utility model is: an application of a series-connected pneumatic membrane switch structure, which includes a lower-line button conductive ink layer and a lower-line conductive base layer, and also includes a panel layer, a button isolation layer substrate, a contact layer, and a housing assembly. Equally spaced button slots are provided at the center of the upper end of the button isolation layer substrate, and gas buffer slots are provided between each button slot. Gas storage slots are provided at the edges of the button slots on the left and right sides of the upper end of the button isolation layer substrate. The panel layer is installed at the upper end of the button isolation layer substrate, the contact layer is installed at the lower end of the button isolation layer substrate, the lower-line button conductive ink layer is installed at the lower end of the contact layer, and the lower-line conductive base layer is installed at the lower end of the lower-line button conductive ink layer.

[0007] Preferably, by adding gas storage slots and gas buffer slots to the button isolation layer substrate, and adding a gas storage and buffer area beside the button body, the gas beside the button body can flow normally to avoid the phenomenon of gas sagging in the sealed button and causing automatic conduction.

[0008] Preferably, button bodies are installed at the center of the upper end of the panel layer at equal intervals, and labels are installed at the edge of the upper end of the panel layer. During use, the worker can conveniently control the panel layer through the button bodies.

[0009] Preferably, the button bodies are adapted to the button slots, and patterns showing the functions of the button bodies are engraved on the labels. During use, the labels can facilitate the display of the functions of the button bodies for the user.

[0010] Preferably, metal shrapnel are installed at the center of the upper end of the contact layer at equal intervals, and the upper ends of the metal shrapnel are attached to the lower ends of the button bodies. During use, the metal shrapnel can cooperate with the button bodies to transmit electrical signals to the household appliances.

[0011] Preferably, a flexible circuit board is fixedly connected to the front end of the lower conductive base layer, and a circuit connector is fixedly connected to the front end of the flexible circuit board. During use, the flexible circuit board and the circuit connector can facilitate the user to install the membrane switch on the household appliance.

[0012] Preferably, the housing assembly includes an outer housing and a through hole. The through hole is formed through the front end of the outer housing, and a storage groove is formed in the inner wall of the outer housing. During use, the outer housing can carry and protect the panel layer, the base material of the key isolation layer, the contact layer, the lower key conductive ink layer and the lower conductive base layer.

[0013] Preferably, the flexible circuit board passes through the through hole, and the storage groove carries and installs the membrane switch composed of the panel layer, the base material of the key isolation layer, the contact layer, the lower key conductive ink layer and the lower conductive base layer. During use, the storage groove and the through hole can carry and limit the flexible circuit board, and carry and store the panel layer, the base material of the key isolation layer, the contact layer, the lower key conductive ink layer and the lower conductive base layer.

[0014] Advantages of the present utility model:

[0015] 1. By adding a gas storage tank and a gas buffer tank to the base material of the key isolation layer, and adding a gas storage and buffer area beside the button body, the gas beside the button body can flow normally to avoid the phenomenon of gas collapse in the sealed key, resulting in automatic conduction;

[0016] 2. The outer housing can carry and protect the panel layer, the base material of the key isolation layer, the contact layer, the lower key conductive ink layer and the lower conductive base layer, and can better protect the internal electronic components compared with the existing soft film outer layer. Description of the Drawings

[0017] Figure 1The figure shows a three-dimensional structural schematic diagram of the application of the through-connected pneumatic membrane switch structure of the present utility model;

[0018] Figure 2 The figure shows a disassembled three-dimensional structural schematic diagram of the application of the through-connected pneumatic membrane switch structure of the present utility model;

[0019] Figure 3 The figure shows a three-dimensional structural schematic diagram of the panel layer and the key isolation layer substrate of the application of the through-connected pneumatic membrane switch structure of the present utility model;

[0020] Figure 4 The figure shows a disassembled three-dimensional structural schematic diagram of the contact layer, the lower-line key conductive ink layer, and the lower-line conductive base layer of the application of the through-connected pneumatic membrane switch structure of the present utility model;

[0021] Figure 5 The figure shows a disassembled three-dimensional structural schematic diagram of the housing assembly of the application of the through-connected pneumatic membrane switch structure of the present utility model.

[0022] Explanation of reference numerals: 1 - outer housing, 2 - panel layer, 3 - key isolation layer substrate, 4 - contact layer, 5 - lower-line key conductive ink layer, 6 - lower-line conductive base layer, 7 - label, 8 - button body, 9 - button groove, 10 - gas storage tank, 11 - gas buffer tank, 12 - metal shrapnel, 13 - flexible circuit board, 14 - circuit connector, 15 - storage groove, 16 - through hole. Detailed implementation manners

[0023] The present utility model will be further described below with reference to the drawings and embodiments.

[0024] Please refer to Figures 1 - 5 , the present utility model provides an embodiment: An application of a through-connected pneumatic membrane switch structure, which includes a lower-line key conductive ink layer 5 and a lower-line conductive base layer 6, and also includes a panel layer 2, a key isolation layer substrate 3, a contact layer 4, and a housing assembly. The upper end center of the key isolation layer substrate 3 is provided with equally spaced button grooves 9, and gas buffer grooves 11 are provided between each button groove 9. Gas storage tanks 10 are provided at the edges of the button grooves 9 on the left and right sides of the upper end of the key isolation layer substrate 3. The panel layer 2 is installed at the upper end of the key isolation layer substrate 3, the contact layer 4 is installed at the lower end of the key isolation layer substrate 3, the lower-line key conductive ink layer 5 is installed at the lower end of the contact layer 4, and the lower-line conductive base layer 6 is installed at the lower end of the lower-line key conductive ink layer 5. By adding gas storage tanks 10 and gas buffer grooves 11 on the key isolation layer substrate 3, a gas storage and buffer area is added beside the button body 8, so that the gas beside the button body 8 can circulate normally to avoid the phenomenon of gas stepping down in the sealed key and causing automatic conduction.

[0025] Please refer to Figure 3, in this embodiment, button bodies 8 are installed at the center of the upper end of the panel layer 2 at equal intervals, and a label 7 is installed at the edge of the upper end of the panel layer 2. During use, the worker can easily control the panel layer 2 through the button bodies 8. The button bodies 8 are adapted to button slots 9, and the label 7 is engraved with a pattern showing the functions of the button bodies 8. During use, the functions of the button bodies 8 can be easily displayed to the user through the label 7.

[0026] Please refer to Figure 4 , in this embodiment, metal shrapnel 12 are installed at the center of the upper end of the contact layer 4 at equal intervals. The upper ends of the metal shrapnel 12 are in contact with the lower ends of the button bodies 8. During use, the metal shrapnel 12 can cooperate with the button bodies 8 to transmit electrical signals to the household appliance. A flexible circuit board 13 is fixedly connected to the front end of the lower conductive base layer 6, and a circuit connector 14 is fixedly connected to the front end of the flexible circuit board 13. During use, the flexible circuit board 13 and the circuit connector 14 can facilitate the user to install the membrane switch on the household appliance.

[0027] Please refer to Figure 5 , in this embodiment, the housing assembly includes an outer housing 1 and a through hole 16. A through hole 16 is formed through the front end of the outer housing 1, and a receiving groove 15 is formed in the inner wall of the outer housing 1. During use, the outer housing 1 can carry and protect the panel layer 2, the key isolation layer substrate 3, the contact layer 4, the lower key conductive ink layer 5, and the lower conductive base layer 6. The flexible circuit board 13 passes through the through hole 16, and the receiving groove 15 carries and installs the membrane switch composed of the panel layer 2, the key isolation layer substrate 3, the contact layer 4, the lower key conductive ink layer 5, and the lower conductive base layer 6. During use, the receiving groove 15 and the through hole 16 can carry and limit the flexible circuit board 13, and receive and carry the panel layer 2, the key isolation layer substrate 3, the contact layer 4, the lower key conductive ink layer 5, and the lower conductive base layer 6.

[0028] During operation, first, install the circuit connector 14 on the control circuit of the household appliance and install the outer housing 1 on the control panel;

[0029] Next, press the button body 8 according to the pattern description on the label 7. Press the metal shrapnel 12 through the button body 8. The metal shrapnel 12 transmits the electrical signal to the control circuit through the lower key conductive ink layer 5 and the lower conductive base layer 6, and the control circuit starts the household appliance to realize various functions;

[0030] During use, the gas storage tank 10 and the gas buffer tank 11 add a gas storage and buffer area next to the button body 8, so that the gas next to the button body 8 can flow normally to avoid the phenomenon of gas depression in the sealed key, resulting in automatic conduction.

[0031] Through the above steps, by adding a gas storage tank 10 and a gas buffer tank 11 on the substrate 3 of the key isolation layer, a gas storage and buffer area is added beside the button body 8, so that the gas beside the button body 8 can flow normally to avoid the phenomenon of the gas stepping down in the sealed key and causing automatic conduction, solving the problem that the key of the pneumatic membrane switch structure is prone to the phenomenon of stepping down and causing automatic conduction during use.

[0032] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A membrane switch structure using a series connection air pressure, comprising a bottom line key conductive ink layer (5) and a bottom line conductive base layer (6), characterized in that: The invention also comprises a panel layer (2), a key isolation layer substrate (3), a contact layer (4) and a shell assembly. The center of the upper end of the key isolation layer substrate (3) is provided with button grooves (9) distributed at equal intervals. A gas buffer groove (11) is provided between each button groove (9). Gas storage grooves (10) are provided at the edges of the button grooves (9) on the left and right sides of the upper end of the key isolation layer substrate (3). The panel layer (2) is installed at the upper end of the key isolation layer substrate (3). The contact layer (4) is installed at the lower end of the key isolation layer substrate (3). A lower line key conductive ink layer (5) is installed at the lower end of the contact layer (4). A lower line conductive base layer (6) is installed at the lower end of the lower line key conductive ink layer (5).

2. The membrane switch structure using series air pressure according to claim 1, characterized in that: The upper center of the panel layer (2) is equipped with button bodies (8) that are equidistantly distributed, and the upper edge of the panel layer (2) is equipped with a label (7).

3. The membrane switch structure using series air pressure according to claim 2, characterized in that: The button body (8) is matched with the button groove (9), and a pattern showing the function of the button body (8) is engraved on the label (7).

4. The membrane switch structure using series air pressure according to claim 3, characterized in that: The center of the upper end of the contact layer (4) is provided with equidistantly distributed metal springs (12), and the upper end of the metal springs (12) is in contact with the lower end of the button body (8).

5. The membrane switch structure using series air pressure according to claim 4, characterized in that: A circuit soft board (13) is fixedly connected to the front end of the lower line conductive base layer (6), and a circuit connector (14) is fixedly connected to the front end of the circuit soft board (13).

6. The membrane switch structure using series air pressure according to claim 5, characterized in that: The shell assembly comprises an outer shell (1) and a through hole (16); the through hole (16) is provided through the front end of the outer shell (1); and a receiving groove (15) is provided on the inner wall of the outer shell (1).

7. The membrane switch structure using series air pressure according to claim 6, characterized in that: The circuit soft board (13) passes through the through hole (16), and the storage groove (15) is supported and installed with a membrane switch composed of a panel layer (2), a key isolation layer substrate (3), a contact layer (4), a lower line key conductive ink layer (5) and a lower line conductive base layer (6).

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