Anti-glue-failure membrane switch

Abstract

The utility model relates to the technical field of membrane switches, in particular to an anti-glue-failure membrane switch, which comprises a key mainboard and a mounting assembly, the mounting assembly comprises a top plate, an elastic sheet, a surface glue layer, a circuit board, a glue clamping layer, a bottom sealing protection plate, a barrel, a stand column and a mounting screw rod, the top plate is fixedly mounted on one side of the key mainboard, the elastic sheet is arranged on the key mainboard, the surface glue layer is fixedly mounted on one side, away from the top plate, of the key mainboard, and the circuit board is fixedly mounted on one side, away from the key mainboard, of the surface glue layer. The laminated layer is fixedly mounted on the side, away from the surface adhesive layer, of the circuit board, the bottom sealing protection plate is fixedly mounted on the side, away from the circuit board, of the laminated layer, and the barrel is fixedly mounted on the side, close to the bottom sealing protection plate, of the top plate; the stand column is fixedly connected with the bottom sealing protection plate and slidably connected with the cylinder, and the mounting screw is in threaded connection with the stand column and the cylinder, so that the use effect of the membrane switch is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of membrane switches, and in particular relates to a membrane switch which is anti-glueing. Background Art

[0002] A membrane switch is an electronic switch that has been specially designed and optimized in material selection. Its main feature is that it can significantly reduce or eliminate the separation or debonding between layers that may occur during long-term use or in harsh environments. Conventional membrane switches have poor waterproof properties and are prone to internal water leakage during long-term use, which affects the use of the membrane switch.

[0003] The prior art CN218568711U discloses an anti-glue-opening membrane switch, comprising a key mainboard, a spring, a panel protective film, a circuit board, a protective frame, a bottom sealing guard plate and a protective frame. The panel protective film is arranged on the top of the key mainboard and the outer side of the spring. The bottom end of the key mainboard of the panel protective film is arranged with a circuit board. A protective frame is arranged on the outer side of the key mainboard and the circuit board. The protective frame wraps the key mainboard and the circuit board on the inside. A bottom sealing guard plate is arranged at the bottom end of the protective frame, which is bonded to the protective frame with protective glue to prevent water from entering the bottom. The panel protective film uses e-PTFE material, which can be breathable and can also block water on the outside to achieve waterproofness. In this way, water will not enter the inside of the membrane remote control, thereby improving the use effect of the membrane switch.

[0004] In normal use, the glue between the key main board and the bottom sealing guard plate is prone to debonding during long-term pressing of the spring, causing damage to the membrane switch, thereby affecting the use of the membrane switch. Utility Model Content

[0005] The utility model aims to solve the problem that the key main board and the bottom sealing guard plate are prone to debonding during long-term pressing of the spring sheet, causing damage to the membrane switch and thus affecting the use effect of the membrane switch.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0007] The utility model provides a membrane switch for preventing glue from debonding, comprising a key mainboard and an installation component; the installation component comprises a top plate, a spring sheet, a surface glue layer, a circuit board, an interlayer, a bottom sealing guard plate, a cylinder, a column and a mounting screw, the top plate is fixedly mounted on one side of the key mainboard, the spring sheet is arranged on the key mainboard, the surface glue layer is fixedly mounted on a side of the key mainboard away from the top plate, the circuit board is fixedly mounted on a side of the surface glue layer away from the key mainboard, the interlayer is fixedly mounted on a side of the circuit board away from the surface glue layer, the bottom sealing guard plate is fixedly mounted on a side of the interlayer layer away from the circuit board, and the cylinder is fixedly mounted on a side of the top plate close to the bottom sealing guard plate; the column is fixedly connected to the bottom sealing guard plate and is slidably connected to the cylinder, and the mounting screw is threadedly connected to the column and is threadedly connected to the cylinder.

[0008] Among them, the installation assembly also includes a panel protective film and a bottom frame, the panel protective film is fixedly connected to the top plate and is located on the side of the top plate away from the bottom sealing guard plate; the bottom frame is fixedly connected to the bottom sealing guard plate and fixedly connected to the panel protective film.

[0009] Wherein, the barrel has an internal threaded hole, and the internal threaded hole is located on a side of the barrel close to the mounting screw and cooperates with the mounting screw.

[0010] Wherein, the cylinder has a connecting groove, which is located on a side of the cylinder close to the column and cooperates with the column.

[0011] Among them, the installation assembly also includes a wear-resistant frame, an upper frame and a lower frame, the wear-resistant frame is fixedly connected to the bottom frame, and is located on the side of the bottom frame away from the circuit board; the upper frame is fixedly connected to the wear-resistant frame, and is located on the side of the wear-resistant frame close to the panel protective film; the lower frame is fixedly connected to the wear-resistant frame, and is located on the side of the wear-resistant frame away from the upper frame.

[0012] The utility model provides a membrane switch that prevents debonding. The mounting screw passes through the mounting hole of the column and is connected to the internal threaded hole. The column is mounted on the cylinder, and the connection strength between the top plate and the bottom sealing guard plate is strengthened to avoid debonding between the button main board and the bottom sealing guard plate, thereby improving the use effect of the membrane switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the anti-glue membrane switch of the first embodiment of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the top plate and the cylinder of the utility model.

[0016] Figure 3 It is a schematic diagram of the overall structure of the membrane switch for preventing glue from debonding according to the second embodiment of the utility model.

[0017] Figure 4 It is a structural schematic diagram of the wear-resistant frame and the upper frame of the utility model.

[0018] In the figure: 101-button main board, 102-top plate, 103-spring, 104-surface adhesive layer, 105-circuit board, 106-interlayer, 107-bottom sealing guard plate, 108-cylinder, 109-column, 110-mounting screw, 111-panel protective film, 112-bottom frame, 113-internal thread hole, 114-connecting groove, 201-wear-resistant frame, 202-upper frame, 203-lower frame. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Embodiment 1:

[0021] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the overall structure of the membrane switch for preventing glue from opening in the first embodiment of the utility model. Figure 2 It is a structural schematic diagram of the top plate and the cylinder of the utility model. The utility model provides a membrane switch that prevents debonding, including a button mainboard 101 and an installation component; the installation component includes a top plate 102, a spring 103, a surface glue layer 104, a circuit board 105, an interlayer 106, a bottom sealing guard plate 107, a cylinder 108, a column 109, a mounting screw 110, a panel protective film 111 and a bottom frame 112, the cylinder 108 has an internal threaded hole 113, and the cylinder 108 has a connecting groove 114. The above-mentioned scheme solves the problem that the key mainboard 101 and the bottom sealing guard plate 107 are prone to debonding during the long-term pressing of the spring 103, causing damage to the membrane switch, thereby affecting the use effect of the membrane switch. It can be understood that the above-mentioned scheme can be used in the case where the key mainboard 101 and the bottom sealing guard plate 107 are prone to debonding during the long-term pressing of the spring 103.

[0022] According to this specific embodiment, the mounting screw 110 is passed through the mounting hole of the column 109 and connected to the internal threaded hole of the cylinder 108, and the column 109 is installed on the cylinder 108, thereby strengthening the connection strength between the top plate 102 and the bottom sealing guard plate 107, avoiding the debonding between the button main board 101 and the bottom sealing guard plate 107, and improving the use effect of the membrane switch.

[0023] The top plate 102 is fixedly mounted on one side of the key mainboard 101, the spring sheet 103 is arranged on the key mainboard 101, the surface adhesive layer 104 is fixedly mounted on the side of the key mainboard 101 away from the top plate 102, the circuit board 105 is fixedly mounted on the side of the surface adhesive layer away from the key mainboard, the interlayer 106 is fixedly mounted on the side of the circuit board 105 away from the surface adhesive layer 104, the bottom sealing guard plate 107 is fixedly mounted on the side of the interlayer 106 away from the circuit board 105, and the cylinder 108 is fixedly mounted on the side of the top plate 102 close to the bottom sealing guard plate 107; the column 109 is fixedly mounted on the bottom The sealing guard plate 107 is fixedly connected and slidably connected to the cylinder 108, the mounting screw 110 is threadedly connected to the column 109 and threadedly connected to the cylinder 108, the top four corners of the key motherboard 101 are designed with through holes, the spring 103 is arranged on the top of the key motherboard 101, the top of the top plate 102 is designed with a plurality of grooves, the bottom of the top plate 102 is fixedly connected to the top of the mounting motherboard, the top of the surface glue layer 104 is designed with a plurality of grooves, the top four corners of the surface glue layer 104 are designed with through holes, the top of the surface glue layer 104 is fixedly connected to the bottom of the key motherboard 101, the top four corners of the circuit board 105 are designed with through holes, The top four corners of the interlayer 106 are designed with through holes, the top of the interlayer 106 is fixedly connected to the bottom of the circuit board 105, the bottom four corners of the bottom sealing guard plate 107 are designed with mounting holes, the bottom end of the cylinder 108 is designed with a connecting groove, the inner top of the cylinder 108 is designed with an internal threaded hole, the cylinder 108 has multiple, the outer top of the cylinder 108 is fixedly connected to the bottom of the top plate 102 through the through holes of the interlayer 106, the through holes of the circuit board 105, the through holes of the surface adhesive layer 104 and the through holes of the key motherboard 101, the bottom end of the column 109 is designed with a mounting hole, the column 109 has multiple, and the outer side of the bottom end of the column 109 It is fixedly connected to the mounting hole of the bottom sealing guard plate 107, and there are multiple mounting screws 110. The mounting screws 110 are connected to the internal threaded holes of the cylinder 108 through the mounting holes of the column 109, and the outer side of the top end of the column 109 is fixed to the connecting groove of the cylinder 108. The mounting screws 110 pass through the mounting holes of the column 109 and are connected to the internal threaded holes of the cylinder 108, and the column 109 is installed on the cylinder 108, so as to strengthen the connection strength between the top plate 102 and the bottom sealing guard plate 107, avoid the debonding between the button main board 101 and the bottom sealing guard plate 107, and thus improve the use effect of the membrane switch.

[0024] Secondly, the panel protective film 111 is fixedly connected to the top plate 102 and is located on the side of the top plate 102 away from the bottom sealing guard plate 107; the bottom frame 112 is fixedly connected to the bottom sealing guard plate 107 and is fixedly connected to the panel protective film 111, the top of the bottom frame 112 is hollow, the inner bottom of the bottom frame 112 is fixedly connected to the top of the bottom sealing guard plate 107, the panel protective film 111 is located on the top of the top plate 102, the bottom outer side of the panel protective film 111 is fixedly connected to the inner side of the opening end of the bottom frame 112, and a sealed space is formed by the cooperation between the panel protective film 111 and the bottom frame 112, thereby improving the sealing of the film mainboard.

[0025] Then, the barrel 108 has an internal threaded hole 113, and the internal threaded hole 113 is located on the side of the barrel 108 close to the mounting screw 110 and cooperates with the mounting screw 110. There are multiple internal threaded holes 113, and the internal threaded holes 113 are located at the inner top of the barrel 108. The mounting screw 110 cooperates with the internal threaded holes 113 to fix the column 109 on the barrel 108, thereby realizing the connection between the mounting screw 110 and the barrel 108.

[0026] Finally, the barrel 108 has a connecting groove 114, which is located on one side of the barrel 108 close to the column 109 and cooperates with the column 109. There are multiple connecting grooves 114, which are located at the bottom end of the barrel 108. The column 109 is fixed to the connecting groove 114 by the mounting screw 110, thereby realizing the connection between the column 109 and the barrel 108.

[0027] When using an anti-debonding membrane switch of the present embodiment, the mounting screw 110 passes through the mounting hole of the column 109 and is connected to the internal threaded hole 113, and the column 109 is installed on the cylinder 108 to strengthen the connection strength between the top plate 102 and the bottom sealing guard plate 107, thereby avoiding debonding between the button main board 101 and the bottom sealing guard plate 107, thereby improving the use effect of the membrane switch.

[0028] Embodiment 2:

[0029] like Figure 3 and Figure 4 As shown, Figure 3 This is a schematic diagram of the overall structure of the membrane switch for preventing glue from peeling according to the second embodiment of the utility model. Figure 4201 is a schematic diagram of the structure of the wear-resistant frame and the upper frame of the utility model. On the basis of the first embodiment, the installation assembly of this embodiment further includes a wear-resistant frame 201, an upper frame 202 and a lower frame 203.

[0030] According to this specific embodiment, the cooperation among the upper frame 202, the lower frame 203 and the wear-resistant frame 201 can protect the membrane switch from collision, thereby improving the wear resistance of the membrane switch.

[0031] Among them, the wear-resistant frame 201 is fixedly connected to the bottom frame 112 and is located on a side of the bottom frame 112 away from the circuit board 105; the upper frame 202 is fixedly connected to the wear-resistant frame 201 and is located on a side of the wear-resistant frame 201 close to the panel protective film 111; the lower frame 203 is fixedly connected to the wear-resistant frame 201 and is located on a side of the wear-resistant frame 201 away from the upper frame 202, the inner side of the wear-resistant frame 201 is fixedly connected to the outer side of the vertical end of the bottom frame 112, the outer side of the bottom of the upper frame 202 is fixedly connected to the top of the wear-resistant frame 201, and the outer side of the top of the lower frame 203 is fixedly connected to the bottom of the wear-resistant frame 201, through the cooperation between the upper frame 202, the lower frame 203 and the wear-resistant frame 201, the membrane switch is protected when a collision occurs, thereby improving the wear resistance of the membrane switch.

[0032] When using the anti-debonding membrane switch of this embodiment, the cooperation between the upper frame 202, the lower frame 203 and the wear-resistant frame 201 protects the membrane switch from collision, thereby improving the wear resistance of the membrane switch.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A membrane switch that prevents glue from peeling, comprising a key mainboard, characterized in that: Also included are mounting components; The installation assembly includes a top plate, a spring sheet, a surface rubber layer, a circuit board, an interlayer, a bottom sealing guard plate, a cylinder, a column and a mounting screw. The top plate is fixedly installed on one side of the key main board, the spring sheet is arranged on the key main board, the surface rubber layer is fixedly installed on the side of the key main board away from the top plate, the circuit board is fixedly installed on the side of the surface rubber layer away from the key main board, the interlayer is fixedly installed on the side of the circuit board away from the surface rubber layer, the bottom sealing guard plate is fixedly installed on the side of the interlayer layer away from the circuit board, and the cylinder is fixedly installed on the side of the top plate close to the bottom sealing guard plate; the column is fixedly connected to the bottom sealing guard plate and is slidably connected to the cylinder, and the mounting screw is threadedly connected to the column and is threadedly connected to the cylinder.

2. The anti-glue membrane switch according to claim 1, characterized in that: The installation assembly also includes a panel protective film and a bottom frame. The panel protective film is fixedly connected to the top plate and is located on a side of the top plate away from the bottom sealing guard plate. The bottom frame is fixedly connected to the bottom sealing guard plate and to the panel protective film.

3. The anti-glue membrane switch according to claim 1, characterized in that: The barrel has an internal threaded hole, which is located on a side of the barrel close to the mounting screw and matches with the mounting screw.

4. The anti-glue membrane switch according to claim 1, characterized in that: The cylinder has a connecting groove, which is located at a side of the cylinder close to the column and matches with the column.

5. The anti-glue membrane switch according to claim 2, characterized in that: The mounting assembly also includes a wear-resistant frame, an upper frame and a lower frame. The wear-resistant frame is fixedly connected to the bottom frame and is located on a side of the bottom frame away from the circuit board; the upper frame is fixedly connected to the wear-resistant frame and is located on a side of the wear-resistant frame close to the panel protective film; the lower frame is fixedly connected to the wear-resistant frame and is located on a side of the wear-resistant frame away from the upper frame.

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