Shockproof membrane switch

Abstract

The utility model belongs to the technical field of membrane switches, and relates to a shockproof membrane switch, which comprises a switch body and a plug board connected with the switch body, the switch body comprises a connecting layer, a panel layer and a button, the button is arranged on the end face of the panel layer, the connecting layer is connected with the panel layer, the other end face of the connecting layer is provided with a clamping block, and the plug board is connected with equipment. A placement groove for mounting the switch body is formed in the end face of the plug board, the diameter of the placement groove is larger than that of the switch body, a clamping groove connected with the clamping block is formed in the inner wall of the placement groove, and a plurality of damping parts for damping the switch body are arranged on the side wall of the placement groove and surround the side wall of the placement groove; a control contact is arranged in the panel layer, and an extrusion piece is arranged around the control contact; compared with the prior art, not only can the switch body be protected from being influenced by vibration, but also the connection of the switch body can be more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane switches, and more specifically, to a shockproof 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] For example, a membrane switch disclosed in the authorization announcement number CN210866003U is provided with a plate body kit, a spring-type key group and a guide belt. In the actual application process, due to the provision of the elastic rib ring, the overall elastic force of the key can be enhanced, so that the elastic force of the key will not drop too much due to excessive use, which can greatly reduce the maintenance cost of the membrane switch in the later stage; in addition, due to the provision of a number of contact protrusions, and each contact protrusion is distributed in a circle with the center of the spring-type arc-shaped sheet, when the contact protrusion contacts the inner circle pole disk, the contact area between the key and the inner circle pole disk can be guaranteed, that is, the contact reliability is high, and the membrane switch can output signals stably; furthermore, the provision of the waterproof ring body can prevent conductive media such as water droplets from entering the substrate layer, causing a short circuit of the membrane switch, greatly reducing the probability of a short circuit in the membrane switch.

[0004] However, although the above solution can realize the waterproof function of the membrane switch and reduce the short circuit phenomenon of the membrane switch, during use, the membrane switch needs to be installed on the equipment, and the equipment will vibrate when working. The existing membrane switch has no shock-absorbing structure, and long-term vibration will damage the membrane switch. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a shock-proof membrane switch with a shock-absorbing structure.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A shockproof membrane switch comprises a switch body and a plug-in board connected to the switch body, wherein the switch body comprises a connecting layer, a panel layer and a button, wherein the button is arranged on the end surface of the panel layer, the connecting layer is connected to the panel layer, and a clamping block is arranged on the other end surface of the connecting layer.

[0008] The plug board is connected to the device, and a placement groove for installing the switch body is provided on the end surface of the plug board, and the diameter of the placement groove is larger than the diameter of the switch body.

[0009] The inner wall of the placement groove is provided with a card slot connected to the card block, and the side wall of the placement groove is provided with a shock absorbing member for shock absorbing the switch body. There are multiple shock absorbing members, and the shock absorbing members are arranged around the side wall of the placement groove.

[0010] A control contact is arranged in the panel layer, and an extrusion piece is arranged around the control contact.

[0011] The utility model is further configured as follows: the shock absorbing member comprises an elastic column and a spring sleeved outside the elastic column, one end of the elastic column and the spring is connected to the side wall of the placement groove, and the other end of the elastic column is in contact with the switch body.

[0012] The utility model is further configured as follows: an electromagnet is arranged in the card slot, the electromagnet strip and the card connection block are magnetically attracted to each other, the electromagnet is electrically connected to a power source, and the power source is electrically connected to a photovoltaic panel.

[0013] The utility model is further configured as follows: the extrusion member comprises a support rod and a resistance film for covering the support rod, a resistance block is arranged below the resistance film corresponding to the control contact point, and the button is covered by the resistance film.

[0014] The utility model is further configured as follows: the cross section of one end of the elastic column that contacts the switch body is in the shape of a bullet head.

[0015] Compared with the shortcomings of the prior art, the beneficial effects of the utility model are:

[0016] The stability of the switch body connection is ensured by connecting the switch body and the plug-in board through an electromagnet. Furthermore, a shock-absorbing member that contacts the switch body is provided on the peripheral wall of the placement groove. The switch body is further fixed by the shock-absorbing member. When the equipment vibrates, the shock-absorbing member can effectively protect the switch body from being damaged by the vibration. Furthermore, the electromagnet is connected to a photovoltaic panel to supply energy to the electromagnet, which can not only protect the switch body from the influence of vibration but also make its connection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a plug board according to an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the panel layer structure of an embodiment of the utility model.

[0020] Switch body 1, plug board 2, connection layer 3, panel layer 4, button 5, card block 6, placement slot 7, card slot 8, shock absorbing member 9, control contact 10, elastic column 11, spring 12, electromagnet 13, photovoltaic panel 14, support rod 15, resistance film 16, resistance block 17. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] like Figures 1 to 3 As shown,

[0024] The shockproof membrane switch comprises a switch body 1 and a plug board 2 connected to the switch body 1. The switch body 1 comprises a connecting layer 3, a panel layer 4 and a button 5. The button 5 is arranged on the end surface of the panel layer 4. A control contact 10 is arranged in the panel layer 4. An extrusion is arranged around the control contact 10. The extrusion comprises a support rod 15 and a resistance film 16 for covering the support rod 15. A resistance block 17 is arranged below the resistance film 16 corresponding to the control contact 10. The button 5 is covered by the resistance film 16. Through the setting of the resistance block 17, the button 5 is more sensitive to the control contact 10.

[0025] The connecting layer 3 is connected to the panel layer 4, and a snap-in block 6 is provided on the other end face of the connecting layer 3. The plug-in board 2 is connected to the device. A placement groove 7 for installing the switch body 1 is provided on the end face of the plug-in board 2. The diameter of the placement groove 7 is larger than the diameter of the switch body 1, which is convenient for placing the switch body 1 in the placement groove 7 and also for the shock absorber 9 to contact with the switch body 1.

[0026] A card slot 8 connected to the card block 6 is provided on the inner wall of the placement groove 7, and an electromagnet 13 is provided in the card slot 8. The electromagnetic strip and the card block 6 are magnetically attracted to each other. The electromagnet 13 is electrically connected to a power source, and the power source is electrically connected to a photovoltaic panel 14 to power the electromagnet 13. The photovoltaic panel 14 can also absorb light energy emitted by the lamp, thereby saving energy.

[0027] A shock absorbing member 9 for absorbing shock to the switch body 1 is provided on the side wall of the placement groove 7. There are multiple shock absorbing members 9, and the shock absorbing members 9 are arranged around the side wall of the placement groove 7. The shock absorbing member 9 includes an elastic column 11 and a spring 12 sleeved outside the elastic column 11. One end of the elastic column 11 and the spring 12 is connected to the side wall of the placement groove 7, and the other end of the elastic column 11 is in contact with the switch body 1. The cross-section of the end of the elastic column 11 that is in contact with the switch body 1 is bullet-shaped, and the shock absorption effect is better.

[0028] Working principle: first install the plug board 2 on the required equipment, then install the switch body 1 into the placement slot 7, and make the card block 6 contact the electromagnet 13, then connect the electromagnet 13 with the photovoltaic panel 14. When the equipment vibrates, the electromagnet 13 firmly fixes the card block 6 in the card slot 8, thereby making the fixation of the switch body 1 more stable. At the same time, the shock absorbing parts 9 located around the switch body 1 can protect the switch body 1. When the switch body 1 is displaced due to vibration, the elastic column 11 is made of rubber material, which can protect the switch body 1, and the spring 12 increases its shock absorbing performance.

[0029] The stability of the connection of the switch body 1 is ensured by connecting the switch body 1 and the plug board 2 through the electromagnet 13. Furthermore, a shock absorbing member 9 is provided on the peripheral wall of the placement groove 7 and contacts with the switch body 1. The switch body 1 is further fixed by the shock absorbing member 9. When the equipment vibrates, the shock absorbing member 9 can effectively protect the switch body 1 from being damaged by the vibration. Furthermore, the electromagnet 13 is connected to a photovoltaic panel 14 to realize the energy supply to the electromagnet 13, which can not only protect the switch body 1 from the influence of vibration but also make its connection more stable.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A shockproof membrane switch, comprising a switch body (1) and a plug board (2) connected to the switch body (1), characterized in that: The switch body (1) comprises a connection layer (3), a panel layer (4) and a button (5), wherein the button (5) is disposed on an end surface of the panel layer (4), the connection layer (3) is connected to the panel layer (4), and a clamping block (6) is disposed on the other end surface of the connection layer (3). The plug board (2) is connected to the device, and a placement groove (7) for mounting the switch body (1) is provided on the end surface of the plug board (2), and the diameter of the placement groove (7) is larger than the diameter of the switch body (1). The inner wall of the placement groove (7) is provided with a clamping groove (8) connected to the clamping block (6), and the side wall of the placement groove (7) is provided with a shock absorbing member (9) for shock absorbing the switch body (1), and there are a plurality of shock absorbing members (9), and the shock absorbing members (9) are arranged around the side wall of the placement groove (7). A control contact (10) is provided in the panel layer (4), and an extrusion piece is provided around the control contact (10).

2. The shockproof membrane switch according to claim 1, characterized in that: The shock absorbing member (9) comprises an elastic column (11) and a spring (12) sleeved outside the elastic column (11); one end of the elastic column (11) and the spring (12) are connected to the side wall of the placement groove (7); the other end of the elastic column (11) contacts the switch body (1).

3. The shockproof membrane switch according to claim 2, characterized in that: An electromagnet (13) is provided in the card slot (8), the electromagnetic strip and the card connection block (6) are magnetically attracted to each other, the electromagnet (13) is electrically connected to a power source, and the power source is electrically connected to a photovoltaic panel (14).

4. The shockproof membrane switch according to claim 3, characterized in that: The extrusion component comprises a support rod (15) and a resisting film (16) for covering the support rod (15); a resisting block (17) is provided below the resisting film (16) corresponding to the control contact (10); and the button (5) is covered by the resisting film (16).

5. The shockproof membrane switch according to claim 4, characterized in that: The cross section of one end of the elastic column (11) that contacts the switch body (1) is in the shape of a bullet head.

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