Protective impact-resistant membrane switch

Abstract

The utility model discloses a protective impact-resistant membrane switch, which comprises a membrane switch body, one surface of the membrane switch body is a backboard layer, the other surface of the membrane switch body is a panel layer, the panel layer is provided with a fixed block, the fixed block is internally provided with a chute, and the chute is internally provided with a protective cover. The beneficial effects of the utility model are that the protection housing is adopted to protect the membrane switch body, the interior of the membrane switch is prevented from being directly influenced by impact force and vibration when the membrane switch is impacted, the panel layer is protected by the protection cover, and the membrane switch has certain moisture-proof and dust-proof functions.

Description

Technical Field

[0001] The utility model relates to the field of membrane switch production, in particular to a protective anti-impact membrane switch. Background Art

[0002] Membrane switch is an operating system that integrates key functions, indicating elements, and instrument panels. It consists of four parts: panel, upper circuit, isolation layer, and lower circuit. When the membrane switch is pressed, the contact of the upper circuit deforms downward and contacts the plate of the lower circuit. When the finger is released, the contact of the upper circuit rebounds, the circuit is disconnected, and the loop triggers a signal. The membrane switch has a rigorous structure, beautiful appearance, and good sealing. It is moisture-proof and has a long service life. It is widely used in electronic communications, electronic measurement instruments, industrial control, medical equipment, automotive industry, smart toys, household appliances and other fields.

[0003] Membrane switches have a small size and weight, making them easy to use in various devices and fields, but they have relatively poor stability and do not have a protective structure. When subjected to external impact, their panels and circuits will be damaged. Compared with the contact circuits on the circuit layer, the buttons on the panel layer and the contact shrapnel in the upper circuit have a higher damage rate when subjected to impact and vibration. In addition, the membrane switch circuit is different from the traditional circuit in that it uses wires for connection. When a part of the membrane switch is damaged, it often needs to be replaced as a whole, which is costly. In the use of smart toys, industrial control, and kitchens, membrane switches are more likely to be subjected to vibration and impact, making them more susceptible to damage. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The technical problem to be solved by the utility model is: but the relative stability is poor and there is no protective structure. When subjected to external impact, the panel and circuit will be damaged. When a part of the membrane switch is damaged, it is often necessary to replace the entire part, which is costly.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the utility model provides the following technical solutions:

[0008] A protective anti-impact membrane switch comprises a membrane switch body, one side of the membrane switch body is a back plate layer, and the other side is a panel layer, a fixing block is provided on the panel layer, a slide groove is provided in the fixing block, a protective cover is provided in the slide groove, a protective shell is provided on the outside of the membrane switch body, damping pads are provided on both sides of the membrane switch body, springs are provided on the inner walls of both sides of the protective shell, the springs are fixedly connected to the damping pads, buffer cotton is provided at the bottom of the membrane switch body, and a slide groove channel is provided at the end of the protective shell away from the buffer cotton.

[0009] Furthermore, the back plate layer is made of foam material and is fixedly connected to the protective shell.

[0010] Furthermore, the membrane switch body includes a panel layer, a glue layer, an upper circuit layer and a lower circuit layer. A lead is provided at one end of the lower circuit layer. The lead passes through the protective shell and extends to the outside of the protective shell.

[0011] Furthermore, the protective cover is T-shaped, a block is provided on the top of the protective cover, and the slide channel is the same size as the block.

[0012] Furthermore, the damping pad is made of rubber and is fixedly bonded to the membrane switch body by adhesive.

[0013] Furthermore, the buffer cotton is made of foam plastic, one side of the buffer cotton is fixedly bonded to the membrane switch body, and the other side of the buffer cotton is fixedly bonded to the protective shell.

[0014] Furthermore, the protective shell is made of hard plastic.

[0015] (III) Beneficial effects

[0016] The beneficial effects of the utility model are:

[0017] A protective shell is used to protect the membrane switch body to prevent the impact force and vibration from directly affecting the inside of the membrane switch when it is hit. The panel layer is protected by a protective cover and has certain moisture-proof and dust-proof functions. When it is hit, it is protected by the protective shell, and the force is further buffered by the spring and absorbed by the damping pad, so that the membrane switch body is not affected, with high stability and strong safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the membrane switch body;

[0021] Markings in the figure: 1-membrane switch body, 2-fixed block, 3-protective cover, 4-protective shell, 5-damping pad, 6-buffer cotton, 7-slide channel, 8-lead, 1a-back plate layer, 1b-panel layer, 2a-slide, 3a-block, 4a-spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] See also Figure 1-3 A protective anti-impact membrane switch shown in the figure includes a membrane switch body 1, one side of the membrane switch body 1 is a back plate layer 1a, and the other side is a panel layer 1b, a fixing block 2 is provided on the panel layer 1b, a slide groove 2a is provided in the fixing block 2, and a protective cover 3 is provided in the slide groove 2a, a protective shell 4 is provided on the outside of the membrane switch body 1, damping pads 5 are provided on both sides of the membrane switch body 1, springs 4a are provided on the inner walls of both sides of the protective shell 4, and the springs 4a are fixedly connected to the damping pads 5, a buffer cotton 6 is provided at the bottom of the membrane switch body 1, and a slide groove channel 7 is provided at the end of the protective shell 4 away from the buffer cotton 6.

[0025] The back plate layer 1 a is made of foam material and is fixedly connected to the protective shell 4 .

[0026] The membrane switch body 1 includes a panel layer, a glue layer, an upper circuit layer and a lower circuit layer. A lead 8 is provided at one end of the lower circuit layer. The lead 8 penetrates the protective shell 4 and extends to the outside of the protective shell 4 .

[0027] The protective cover 3 is T-shaped, and a block 3a is provided on the top of the protective cover 3. The slide channel 7 is the same size as the block 3a. When in use, the protective cover 3 can be slid upward along the slide channel 7 to expose the panel layer 1b of the membrane switch body for pressing. When use is completed, the protective cover 3 is slid downward to reset. At this time, the protective cover 3 protects the front of the protection switch body 1 and provides partial dust and moisture-proof functions, while the other surfaces of the membrane switch body 1 are protected by the protective shell 4.

[0028] The damping pad 5 is made of rubber and is fixedly bonded to the membrane switch body 1 by adhesive. The damping pad 5 is used to absorb the force of repeated vibration of the spring 4 a.

[0029] The buffer cotton 6 is made of foam plastic. One side of the buffer cotton 6 is fixedly bonded to the membrane switch body 1, and the other side is fixedly bonded to the protective shell 4. The buffer cotton 6 is arranged between the membrane switch body 1 and the protective shell 4 to separate the membrane switch body 1 from direct contact with the protective shell 4, and when the outside is impacted, it absorbs vibration from the bottom to protect the membrane switch body 1.

[0030] The protective shell 4 is made of hard plastic material, provides external protection and is light in weight.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A protective anti-impact membrane switch, characterized in that: The invention comprises a membrane switch body (1), wherein one side of the membrane switch body (1) is a back plate layer (1a), and the other side is a panel layer (1b), a fixing block (2) is provided on the panel layer (1b), a slide groove (2a) is provided in the fixing block (2), a protective cover (3) is provided in the slide groove (2a), a protective shell (4) is provided on the outer side of the membrane switch body (1), damping pads (5) are provided on both sides of the membrane switch body (1), springs (4a) are provided on the inner walls of both sides of the protective shell (4), and the springs (4a) are fixedly connected to the damping pads (5), a buffer cotton (6) is provided at the bottom of the membrane switch body (1), and a slide groove channel (7) is provided at the end of the protective shell (4) away from the buffer cotton (6).

2. The protective anti-impact membrane switch according to claim 1, characterized in that: The back plate layer (1a) is made of foam material and is fixedly connected to the protective outer shell (4).

3. The protective anti-impact membrane switch according to claim 1, characterized in that: The membrane switch body (1) comprises a panel layer, a glue layer, an upper circuit layer and a lower circuit layer, and a lead wire (8) is provided at one end of the lower circuit layer. The lead wire (8) passes through the protective shell (4) and extends to the outside of the protective shell (4).

4. The protective anti-impact membrane switch according to claim 1, characterized in that: The protective cover (3) is T-shaped, a block (3a) is provided on the top of the protective cover (3), and the slide channel (7) is the same size as the block (3a).

5. The protective anti-impact membrane switch according to claim 1, characterized in that: The damping pad (5) is made of rubber material and is fixedly bonded to the membrane switch body (1) by adhesive.

6. The protective anti-impact membrane switch according to claim 1, characterized in that: The buffer cotton (6) is made of foam plastic, one side of the buffer cotton (6) is fixedly bonded to the membrane switch body (1), and the other side of the buffer cotton (6) is fixedly bonded to the protective shell (4).

7. The protective anti-impact membrane switch according to claim 1, characterized in that: The protective shell (4) is made of hard plastic material.

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