Button glue-dripping type membrane switch

Abstract

The utility model relates to a key glue-dripping type membrane switch. The membrane switch sequentially comprises a panel, a surface key layer, a fixing layer, a line key layer, a line layer and a bottom glue layer from top to bottom, an elastic piece protruding upwards is arranged on the circuit layer, a key convex hull is arranged on the surface of the panel, and dripping glue is dripped on the surface of the panel. The surface key layer, the fixed layer and the line key layer are respectively provided with a surface key layer hole, a fixed layer hole and a line key layer hole, and the key convex hulls, the surface key layer hole, the fixed layer hole, the line key layer hole and the elastic sheet are located at the same vertical position; in the panel, the surface key layer, the fixed layer, the wire key layer and the circuit layer, adjacent layers are bonded by adopting a double-faced adhesive tape; a circle of flow-resisting printing ink is arranged on the periphery of the dripping glue, the dripping glue is formed by dripping through a glue dripping machine, and the dripping glue is provided with a LOGO. According to the key glue-dripping type membrane switch provided by the utility model, the LOGO is dripped on the panel in a glue-dripping manner, the glue-dripping area is large, and the appearance and the touch feeling are good.

Description

Technical Field

[0001] The utility model relates to a thin-touch switch, in particular to a key-press glue-dropping membrane switch which uses glue-dropping to drop a LOGO on a panel, has a large glue-dropping area, and has good appearance and touch. Background Art

[0002] Customers' design requirements for user interfaces are constantly changing and improving. They are not limited to the realization of functions, but also require more fashionable appearance, more novel touch, and higher requirements for the feel, appearance, life and durability of buttons. Common membrane switches on the market have certain limitations:

[0003] 1. The LOGO is printed on the panel instead of being set on the panel by glue dripping.

[0004] 2. The LOGO area is small.

[0005] 3. The touch is average. Utility Model Content

[0006] In view of the above problems, the main purpose of the utility model is to provide a key glue-dropping membrane switch which uses glue-dropping to drop a LOGO on a panel, has a large glue-dropping area, and has good appearance and touch.

[0007] The utility model solves the above technical problems through the following technical solutions: a key-drop glue type membrane switch, which comprises from top to bottom: a panel, a surface key layer, a fixing layer, a line key layer, a circuit layer, and a bottom glue layer; an upwardly protruding spring is arranged on the circuit layer, a key convex bump is arranged on the surface of the panel, and glue is dripped on the surface of the panel.

[0008] The surface key layer, fixed layer and wire key layer are respectively provided with surface key layer holes, fixed layer holes and wire key layer holes. The key convex hull, surface key layer holes, fixed layer holes, wire key layer holes and springs are located at the same vertical position.

[0009] In the panel, surface key layer, fixed layer, wire key layer, and circuit layer, adjacent layers are bonded with double-sided tape, and the bottom adhesive layer is attached to the back of the circuit layer.

[0010] There is a circle of flow-blocking ink around the glue drop, and the glue drop is made by a glue drop machine.

[0011] In a specific implementation example of the present utility model, the glue drop is a glue drop with a LOGO.

[0012] In a specific implementation example of the present utility model, the glue drop is epoxy resin glue drop.

[0013] In a specific implementation example of the present utility model, the height range of the glue dripping is: 2-4mm.

[0014] In a specific implementation example of the present utility model, the height range of the convex bump of the key is: 1-3mm.

[0015] In a specific implementation example of the present utility model, the height range of the protrusion of the spring piece is: 8-15mm.

[0016] In a specific implementation example of the present utility model, the thickness range of the panel is: 0.15-0.25mm; the thickness range of the surface key layer is: 0.2-0.5mm.

[0017] In a specific implementation example of the present utility model, the thickness of the fixing layer ranges from 0.15 to 0.25 mm.

[0018] In a specific implementation example of the present utility model, the thickness of the wire bond layer ranges from 0.2 to 0.5 mm.

[0019] In a specific implementation example of the present utility model, the thickness of the circuit layer ranges from 0.2 to 0.5 mm.

[0020] In a specific implementation example of the present invention, the thickness of the base adhesive layer ranges from 0.05 to 0.1 mm.

[0021] The positive improvement effect of the utility model is that the key glue-dropping membrane switch proposed by the utility model drips the LOGO on the panel in a glue-dropping manner, and the glue-dropping area is large, and the appearance and touch are good. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the interlayer structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the circuit layout of the utility model.

[0024] The following are the names corresponding to the label numbers in this utility model:

[0025] Panel 1, surface key layer 2, fixed layer 3, wire key layer 4, circuit layer 5, bottom glue layer 6, spring 7, drip glue 8, key convex bump 9, blocking ink 10, surface key layer hole 201, fixed layer hole 301, wire key layer hole 401. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to illustrate the technical solution of the present invention in detail.

[0027] Figure 1 It is a schematic diagram of the structure of the interlayer structure of the utility model. Figure 2 It is a schematic diagram of the circuit layout of the utility model, such as Figure 1-2As shown: the key-press glue-dropping membrane switch proposed by the utility model comprises, from top to bottom, a panel 1, a surface key layer 2, a fixed layer 3, a wire key layer 4, a circuit layer 5, and a bottom glue layer 6; an upwardly protruding spring 7 is provided on the circuit layer 5, and a glue drop 8 and a key convex 9 are provided on the surface of the panel 1; a surface key layer hole 201, a fixed layer hole 301, and a wire key layer hole 401 are respectively provided on the surface key layer 2, the fixed layer 3, and the wire key layer 4, and the key convex 9, the surface key layer hole 201, the fixed layer hole 301, the wire key layer hole 401, and the spring 7 are located in the same vertical position; in the panel 1, the surface key layer 2, the fixed layer 3, the wire key layer 4, and the circuit layer 5, adjacent layers are bonded with double-sided glue, the bottom glue layer 6 is attached to the back of the circuit layer 5, and the glue drop 8 is surrounded by a circle of flow-blocking ink, and the glue drop 8 is dropped by a glue drop machine. Use a 200-mesh screen and a circle of blocking ink 10, the printed pattern is smooth and the glue dripping yield is high.

[0028] The screen is a tool for printing and one of the keys to screen printing. Screen printing is achieved through the screen. The screen has 70 mesh, 200 mesh, 300 mesh, 350 mesh, 420 mesh and other specifications. The utility model uses 200 mesh to increase the ink thickness. The amount of ink under 200 mesh is greater than that of 300 mesh, 350 mesh, 420 mesh and other specifications of screen, which can meet the requirements of the utility model.

[0029] The glue dripping area of ​​the general glue dripping switch is also relatively small, while the glue dripping area of ​​the glue dripping key switch in the utility model is relatively large. The screen adopts 200 mesh, the thickness of the photosensitive glue is 30-40um, and the thickness of the ordinary screen photosensitive glue film is generally 20-30um. The glue dripped in the utility model is epoxy resin.

[0030] The glue drop 8 is provided with a LOGO, the glue drop 8 is an epoxy resin glue drop, and the height range of the glue drop 8 is: 2-4mm.

[0031] like Figure 1 As shown, in the specific implementation process, the convex height range of the key convex 9 of the utility model is: 1-3mm, the convex height range of the spring piece 7 is: 8-15mm, the thickness range of the panel 1 is: 0.15-0.25mm, the thickness range of the surface key layer is: 0.2-0.5mm, the thickness range of the fixed layer 3 is: 0.15-0.25mm, the thickness range of the wire key layer 4 is: 0.2-0.5mm, the thickness range of the circuit layer is: 0.2-0.5mm, and the thickness range of the bottom glue layer is: 0.05-0.1mm. The above parameters are selected according to the specific requirements. In the specific implementation process, other parameters can also be selected.

[0032] The key-press glue-dropping membrane switch proposed by the utility model drips the LOGO on the panel in a glue-dropping manner, and the glue-dropping area is large, and the appearance and touch are good.

[0033] Ordinary membrane switches with a 200 mesh screen generally do not drip glue. Membrane switches with glue dripping are relatively high-end. The glue dripping area of ​​ordinary glue dripping switches is also relatively small. The glue dripping area of ​​the glue dripping key switch of the utility model is relatively large. The screen adopts 200 mesh, the thickness of the photosensitive glue is 30-40um, and the thickness of the ordinary screen photosensitive glue film is generally 20-30um. The glue dripped is made of epoxy resin. The utility model uses a circle of flow-blocking ink, the printing pattern is smooth, and the glue dripping yield is high.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A key glue type membrane switch, characterized in that: The key-drop glue type membrane switch is composed of: a panel, a surface key layer, a fixing layer, a line key layer, a circuit layer, and a bottom glue layer from top to bottom; an upwardly protruding spring is arranged on the circuit layer, a key convex bump is arranged on the surface of the panel, and glue is dropped on the surface of the panel; The surface key layer, the fixed layer and the wire key layer are respectively provided with surface key layer holes, fixed layer holes and wire key layer holes, and the key convex hull, the surface key layer holes, the fixed layer holes, the wire key layer holes and the spring pieces are located at the same vertical position; In the panel, surface key layer, fixed layer, wire key layer, and circuit layer, adjacent layers are bonded with double-sided adhesive, and the bottom adhesive layer is attached to the back of the circuit layer; There is a circle of flow-blocking ink around the glue drop, and the glue drop is made by a glue drop machine.

2. The key-type glue-dropping membrane switch according to claim 1, characterized in that: The glue drop is provided with a LOGO.

3. The key-type glue-dropping membrane switch according to claim 1 or 2, characterized in that: The glue is epoxy resin glue, and the height range of the glue is: 2-4mm.

4. The key-type glue-dropping membrane switch according to claim 1, characterized in that: The height range of the button bump is 1-3mm.

5. The key-type glue-dropping membrane switch according to claim 1, characterized in that: The height range of the shrapnel protrusion is: 8-15mm.

6. The key-type glue-dropping membrane switch according to claim 1, characterized in that: The thickness range of the panel is: 0.15-0.25mm; the thickness range of the surface key layer is: 0.2-0.5mm.

7. The key-type glue-dropping membrane switch according to claim 1, characterized in that: The thickness range of the fixed layer is: 0.15-0.25mm.

8. The key-type glue-dropping membrane switch according to claim 1, characterized in that: The thickness range of the wire bond layer is: 0.2-0.5mm.

9. The key-type glue-dropping membrane switch according to claim 1, characterized in that: The thickness range of the circuit layer is: 0.2-0.5mm.

10. The key-type glue-dropping membrane switch according to claim 1, characterized in that: The thickness range of the base glue layer is: 0.05-0.1mm.

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