Membrane key

Abstract

The utility model discloses a film key, which comprises a surface film, first interlayer glue is arranged below the surface film, black PET is arranged below the first interlayer glue, second interlayer glue is arranged below the black PET, white PET is arranged below the second interlayer glue, third interlayer glue is arranged below the white PET, and a circuit layer is arranged below the third interlayer glue. And a back adhesive layer is arranged below the circuit layer. According to the utility model, the key is small in size, thin in thickness, simple and convenient to install, suitable for various scenes, long in service life and longer in service life, the thinnest film key can be 1mm thick, the size of the product is greatly optimized, the installation is convenient and fast, the back glue is directly attached to the surface of the casing, and the service life of the electrical performance key can reach 100W times.

Description

Technical Field

[0001] This utility model relates to the field of button technology, and in particular to a membrane button. Background Technology

[0002] Currently, metal buttons are generally mechanical buttons assembled using metal shells, springs, LEDs, solder pads, etc. This results in metal buttons being relatively large in size, requiring a large installation space, and having a shorter electrical lifespan, making it difficult to exceed 50W. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a membrane key.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a membrane button, comprising a face mask, a first layer of adhesive layer disposed below the face mask, a black PET layer disposed below the first layer of adhesive layer, a second layer of adhesive layer disposed below the black PET layer, a white PET layer disposed below the second layer of adhesive layer, a third layer of adhesive layer disposed below the white PET layer, a circuit layer disposed below the third layer of adhesive layer, and a backing adhesive layer disposed below the circuit layer.

[0005] As a further description of the above technical solution:

[0006] The mask has buttons and windows. The buttons are shaped like one of flat raised, spherical raised, or frame raised. The windows are shaped like one of transparent, translucent white, or translucent colored.

[0007] As a further description of the above technical solution:

[0008] Cavity 2 is formed on each of the first layer of adhesive, black PET, second layer of adhesive, white PET, and third layer of adhesive, and cavity 3 is also formed on the first layer of adhesive.

[0009] As a further description of the above technical solution:

[0010] The interlayer adhesive is bonded to the black PET through the interlayer adhesive.

[0011] As a further description of the above technical solution:

[0012] Both the black PET and the second separator adhesive have a cavity. The cavity one and cavity two on the black PET and the second separator adhesive are combined into one, and a spring and an LGF are placed therein.

[0013] As a further description of the above technical solution:

[0014] Both the white PET and the separator adhesive three have cavities four, the spring sheet extends into the cavity four, and LED side lights are also provided at the positions of the cavity two and the cavity four.

[0015] As a further description of the above technical solution:

[0016] The white PET sheet has small ears at the position corresponding to the spring sheet, and pads are provided on the small ears.

[0017] As a further description of the above technical solution:

[0018] A tailband is installed on the circuit layer, the tailband passes through the adhesive backing layer, and the LED sidelight is disposed on the circuit layer.

[0019] This utility model has the following beneficial effects:

[0020] 1. Compared with existing technologies, this membrane key uses PET film, double-sided adhesive, LED light, FPC circuit, etc. to assemble a membrane key, realizing the functions of key on / off and light signal display.

[0021] 2. Compared with existing technologies, this membrane button is small in size, thin in thickness, easy to install, and suitable for various scenarios. The electrical performance button has a long lifespan and can be used for a longer period of time. The membrane button can be as thin as 1mm, which greatly optimizes the size of the product. It is easy to install, and the adhesive can be directly attached to the surface of the casing. The electrical performance button can reach 1 million clicks. Attached Figure Description

[0022] Figure 1 This is a layered schematic diagram of a membrane keypad proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the membrane of a membrane button according to the present invention;

[0024] Figure 3 This is a schematic diagram of the interlayer adhesive for a membrane keypad proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of a black PET film button according to the present invention;

[0026] Figure 5 This is a schematic diagram of a white PET film button according to the present invention;

[0027] Figure 6 This is a schematic diagram of the separator adhesive for a membrane button proposed in this utility model.

[0028] Legend:

[0029] 1. Face mask; 2. First layer adhesive; 3. Black PET; 4. Second layer adhesive; 5. White PET; 6. Third layer adhesive; 7. Circuit layer; 8. Backing adhesive layer; 9. LED side light; 10. LGF; 11. Spring; 12. Button; 13. Pad; 14. Small ear; 15. Cavity 1; 16. Cavity 2; 17. Window; 18. Tail strap; 19. Cavity 3; 20. Cavity 4. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1 to 6 The present invention provides a membrane button: including a face film 1, a first layer adhesive 2 is disposed below the face film 1, a black PET 3 is disposed below the first layer adhesive 2, a second layer adhesive 4 is disposed below the black PET 3, a white PET 5 is disposed below the second layer adhesive 4, a third layer adhesive 6 is disposed below the white PET 5, a circuit layer 7 is disposed below the third layer adhesive 6, and a backing adhesive layer 8 is disposed below the circuit layer 7.

[0032] The mask 1 is provided with a button 12 and a window 17. The button 12 is shaped as one of flat protrusion, spherical protrusion, and frame protrusion. The window 17 is shaped as one of transparent, transparent white, and transparent colored. Cavities 16 are opened on the first layer adhesive 2, black PET 3, second layer adhesive 4, white PET 5, and third layer adhesive 6. Cavities 19 are also opened on the first layer adhesive 2. The first layer adhesive 2 and black PET 3 are bonded together by the first layer adhesive 2.

[0033] Cavity 15 is provided on both the black PET3 and the second layer adhesive 4. Cavity 15 and cavity 26 on the black PET3 and the second layer adhesive 4 are combined into one and a spring 11 and an LGF10 are placed there. Cavity 40 is provided on both the white PET5 and the third layer adhesive 6. Spring 11 extends into cavity 40. LED side lights 9 are also provided at the positions of cavity 26 and cavity 40. Small ears 14 are provided on the white PET5 corresponding to the position of spring 11. Pads 13 are provided on small ears 14. Tail strap 18 is installed on the circuit layer 7. Tail strap 18 passes through the backing adhesive layer 8. LED side lights 9 are provided on the circuit layer 7.

[0034] Working principle:

[0035] The button 12 can be one of the following shapes: flat raised, spherical raised, or frame raised, or it can be designed into other shapes. The window 17 can be one of the following colors: transparent, translucent white, or translucent colored, or it can be designed into other colors.

[0036] The first layer of adhesive 2 has cavities 16 and 19. Cavity 16 is used to place the spring 11, and cavity 19 is used for light transmission. At the same time, the first layer of adhesive 2 is used to bond the face mask 1 and the black PET 3.

[0037] Black PET3 and separator adhesive 4 are integrated as one unit, and cavity 15 and cavity 26 on it are combined into one unit to place spring 11 and LGF10.

[0038] The white PET5 is combined with the third layer of adhesive 6, and cavities 216 and 420 are provided on it to place the spring 11 and the LED side light 9; the white PET5 has small ears 14 at the position of the spring 11, and pads 13 are provided on the small ears 14.

[0039] The circuit layer 7 is made of FPC and has LED side lights 9 and tail strip 18 installed on it; below the circuit layer 7 is the adhesive layer 8, which is used to attach it to the surface of the casing.

[0040] LGF10 is composed of a double-layer adhesive film, a light guide film, a reflective film, and a diffusion film. Its designed thickness is equal to the total thickness of the four layers: black PET3, second layer adhesive 4, white PET5, and third layer adhesive 6, to ensure the flatness of the structure. The four layers of materials, black PET3, second layer adhesive 4, white PET5, and third layer adhesive 6, must be able to block or shield light.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A membrane key comprising a face film (1), characterized in that: The face mask (1) is provided with a spacer glue one (2), the spacer glue one (2) is provided with black PET (3) below, the black PET (3) is provided with spacer glue two (4) below, the spacer glue two (4) is provided with white PET (5) below, the white PET (5) is provided with spacer glue three (6) below, the spacer glue three (6) is provided with circuit layer (7) below, the circuit layer (7) is provided with back glue layer (8) below.

2. The membrane key of claim 1, wherein: The face mask (1) is provided with a button (12) and a transparent window (17), the button (12) is in one of flat convex, spherical convex and frame line convex, and the transparent window (17) is in one of transparent, transparent white and transparent color.

3. The membrane key of claim 1, wherein: The spacer glue one (2), black PET (3), spacer glue two (4), white PET (5) and spacer glue three (6) are all provided with cavity two (16), and the spacer glue one (2) is further provided with cavity three (19).

4. The membrane key of claim 1, wherein: The spacer glue one (2) and black PET (3) are bonded by the spacer glue one (2).

5. The membrane key of claim 3, wherein: The black PET (3) and spacer glue two (4) are both provided with cavity one (15), the cavity one (15) and cavity two (16) of the black PET (3) and spacer glue two (4) are combined into one, and the spring piece (11) and LGF (10) are placed therein.

6. A membrane key according to claim 5, wherein: The white PET (5) and spacer glue three (6) are both provided with cavity four (20), the spring piece (11) extends into the cavity four (20), and the LED side light (9) is arranged at the positions of the cavity two (16) and cavity four (20).

7. The membrane key of claim 5, wherein: The white PET (5) is provided with small ear (14) corresponding to the position of the spring piece (11), and the small ear (14) is provided with pad point (13).

8. The membrane key of claim 6, wherein: The circuit layer (7) is installed with tail band (18), the tail band (18) passes through the back glue layer (8), and the LED side light (9) is arranged on the circuit layer (7).

Images