Impact-resistant membrane switch

Abstract

The utility model discloses an impact-resistant membrane switch, and relates to the technical field of membrane switches. Comprising a base shell, the base shell comprises a bottom shell and a panel which are connected in an overlapped mode, and mounting lugs are arranged on the base shell; a control main board, a plurality of electrode discs and a thin film sensor are arranged in the accommodating space, the electrode discs are electrically connected with the control main board, and the thin film sensor is arranged on the electrode discs; the pressing assembly comprises a pressing disc, a limiting column, a first wedge-shaped block, a second wedge-shaped block and an elastic piece. A limiting hole is formed in the panel in the thickness direction of the panel, the limiting column is arranged in the limiting hole in a penetrating mode, one end of the limiting column is suitable for abutting against the film sensor, and the multiple first wedge-shaped blocks are arranged around the limiting column at equal angles; a limiting groove is formed in the panel, and the second wedge-shaped block is arranged in the limiting groove in a sliding mode; according to the technical scheme provided by the invention, a sufficient beating feedback feeling can be provided for a user, so that the use experience feeling of the user is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of membrane switches, and in particular to an impact-resistant membrane switch. Background Art

[0002] Membrane switches use an integral sealed structure composed of a flat multi-layer combination. They are a new type of electronic component that integrates optics, mechanics, and electronics by sealing together a key switch, panel, marking, symbol display, and lining. This is a fundamental change in the appearance and structure of electronic products. It can replace conventional discrete component keys and perform operating system tasks more reliably.

[0003] Due to the characteristics of membrane switches, they are also widely used in many fields, such as boxing punches. Some boxing enthusiasts train by hitting the corresponding points of the membrane switch. Most of the current membrane switches are relatively thin in structure, so they are slightly lacking in impact resistance, and the feedback of the user's impact is weak, so there is room for improvement. Utility Model Content

[0004] The purpose of this application is to provide an impact-resistant membrane switch to solve at least one of the above-mentioned technical problems.

[0005] In order to solve the above technical problems, the present application provides an impact-resistant membrane switch, comprising a base shell, the base shell forming an accommodating space, comprising a bottom shell and a panel connected to each other in a stacked manner, the base shell being provided with mounting ears; and the panel being provided with a protrusion;

[0006] A control mainboard, an electrode disk and a thin film sensor are provided in the accommodation space. A plurality of electrode disks are provided and are electrically connected to the control mainboard respectively. The thin film sensor is provided on the electrode disk.

[0007] The pressing assembly comprises a pressing plate, a limiting post, a first wedge block, a second wedge block and an elastic member; a limiting hole is formed on the panel along the thickness direction thereof, the limiting post is passed through the limiting hole and one end of the limiting post is suitable for abutting against the film sensor, a plurality of first wedge blocks are provided around the limiting post at equal angles; a limiting groove is formed on the panel, the second wedge block is slidably arranged in the limiting groove, one end of the elastic member abuts against the second wedge block and the other end abuts against the inner wall of the limiting groove, and the first wedge block and the second wedge block are matched with each other at a slope;

[0008] In the above implementation process, the user fits the base shell onto the wall, and then locks the base shell with the fixing screws and the mounting ears; when in formal use, the user acts on the corresponding point of the panel, and then acts on the film sensor through the pressing plate and the limiting column. The film sensor cooperates with the electrode plate to receive the signal. Each actionable point is provided with a corresponding electrode plate and film sensor, and finally a unified connection is achieved through the control main board; in this solution, when the pressing plate and the limiting column move, they drive the first wedge block to move, and the first wedge block and the second wedge block slope cooperate so that The second wedge block is squeezed and moved in the horizontal direction. The second wedge block moving in the horizontal direction will squeeze the elastic part, that is, the user will have a certain elastic feedback feeling when acting on the panel, thereby improving the user experience. After the user removes the external force, the elastic part releases the elastic potential energy to prompt the second wedge block to reset and finally reset the pressing plate and the limit column. This solution can realize the automatic reset of the action point and provide the user with sufficient striking feedback, which can effectively improve the user's user experience, and this structure can also provide a certain protection for the main structure of the switch and improve the impact resistance of the switch.

[0009] Preferably, the base shell is hexagonal, and the mounting ears are provided on the edge of the base shell;

[0010] Preferably, the mounting ears are provided with six and are respectively distributed at equal angles on different side lines of the base shell, and mounting holes are formed on the mounting ears;

[0011] In the above implementation process, the hexagonal structure is more evenly distributed in force, and the equal-angle distribution of the six mounting ears can improve assembly stability, while making the force at each position more evenly distributed and improving impact resistance.

[0012] Preferably, a buffer gasket is provided at the mounting ear on the side of the base shell facing away from the panel;

[0013] In the above implementation process, the buffer gasket is placed between the wall and the bottom shell. By further arranging the buffer gasket, this solution can reduce the direct impact between the bottom shell and the wall, thereby playing a certain protective role on the base shell, extending the service life, and at the same time improving the impact resistance to a certain extent.

[0014] Preferably, there are six first wedge-shaped blocks, and six second wedge-shaped blocks are provided correspondingly;

[0015] In the above implementation process, six first wedge blocks are provided around the limiting column. When the pressing plate is pressed downward, the impact force can be decomposed from multiple directions to improve the impact resistance.

[0016] Preferably, an extension column is formed at one end of the second wedge-shaped block away from the first wedge-shaped block, and the elastic member comprises a compression spring, and the spring is suitable for being sleeved on the extension column;

[0017] In the above implementation process, the extension column can limit the elastic member, thereby making the elastic force recovery direction of the elastic member more stable.

[0018] Preferably, a protective layer is provided on the panel, and the protective layer comprises a wear-resistant layer, a toughness layer and a flame-retardant layer from top to bottom;

[0019] Preferably, the wear-resistant layer is made of polyurethane material;

[0020] Preferably, the toughness layer is made of polypropylene material;

[0021] Preferably, the flame retardant layer is made of flame retardant fiber;

[0022] In the above implementation process, this solution further adds a protective layer to the panel. By adding a wear-resistant layer made of polyurethane material and making it the outermost structure, the wear resistance of the switch exterior can be enhanced, thereby extending its service life. Located under the wear-resistant layer is a toughness layer made of polypropylene material, which can enhance the toughness of the protective layer and reduce the risk of cracking when hit; and finally, the flame retardant layer is further added to improve the flame retardant properties of the protective layer, thereby improving the safety of use.

[0023] Compared with the prior art, the beneficial effect of the present application is that: in this solution, when the pressing plate and the limit column move, they drive the first wedge block to move, and the first wedge block cooperates with the slope of the second wedge block, so it will squeeze the second wedge block to move in the horizontal direction. The second wedge block moving in the horizontal direction will squeeze the elastic part, that is, the user will have a certain elastic feedback feeling when acting on the panel, thereby improving the user experience. After the user removes the external force, the elastic part releases the elastic potential energy to prompt the second wedge block to reset and finally reset the pressing plate and the limit column; this solution can realize the automatic reset of the action point and provide the user with sufficient striking feedback, which can effectively improve the user experience, and this structure can also provide a certain protection for the main structure of the switch, thereby improving the impact resistance of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the overall structure of one embodiment of the present application;

[0027] Figure 3 This is a partial structural diagram of a pressing assembly according to one embodiment of the present application;

[0028] Figure 4 This is a partial structural diagram of a pressing assembly according to one embodiment of the present application;

[0029] Figure 5 This is a partial structural diagram of one embodiment of the present application;

[0030] Figure 6 This is a partial structural diagram of one embodiment of the present application;

[0031] Figure 7 This is a schematic structural diagram of a protective layer according to one embodiment of the present application;

[0032] Among them: 11. Panel; 111. Limiting hole; 12. Bottom shell; 13. Mounting ear; 131. Mounting hole; 14. Buffer gasket; 21. Press plate; 22. Limiting column; 23. First wedge block; 24. Second wedge block; 241. Extension column; 25. Elastic part; 26. Limiting groove; 31. Electrode disk; 32. Thin film sensor; 33. Control main board; 41. Wear-resistant layer; 42. Toughness layer; 43. Flame retardant layer. DETAILED DESCRIPTION

[0033] The following diagrams illustrate various embodiments of the present application. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present application. In other words, in some embodiments of the present application, these practical details are not essential. Furthermore, to simplify the drawings, some conventional structures and components are depicted in a simplified schematic manner.

[0034] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, in this application, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or ranking, nor are they used to limit this application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0036] In order to further understand the content, features and effects of the utility model of the present application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0037] Example

[0038] Due to the characteristics of membrane switches, they are also widely used in many fields. For example, some boxing enthusiasts train by hitting the corresponding points of the membrane switch. Most current membrane switches are relatively thin in structure, so they are slightly lacking in impact resistance and provide weak feedback to users. Therefore, there is room for improvement. To solve the above technical problems, this embodiment provides the following technical solutions:

[0039] For details, see Figure 1-7 This embodiment provides an impact-resistant membrane switch, comprising a base shell, the base shell forming an accommodating space, comprising a bottom shell 12 and a panel 11 that are stacked and connected, a mounting ear 13 being provided on the base shell; and a protrusion being formed on the panel 11;

[0040] Furthermore, a control mainboard 33, an electrode disk 31 and a thin film sensor 32 are provided in the accommodation space. A plurality of electrode disks 31 are provided and are electrically connected to the control mainboard 33 respectively. The thin film sensor 32 is provided on the electrode disk 31.

[0041] Furthermore, the film sensor 32 may be a resistive film pressure sensor of model FSR402.

[0042] It should be noted that the electrical connection method and working principle between the electrode disk 31, the thin film sensor 32 and the control main board 33 are relatively mature technologies in the existing technology, and they are not the main invention points in this application, so this application will not further elaborate on them.

[0043] For details, see Figure 3, also includes a pressing component, the pressing component includes a pressing plate 21, a limiting column 22, a first wedge block 23, a second wedge block 24 and an elastic member 25; a limiting hole 111 is formed on the panel 11 along its thickness direction, the limiting column 22 is passed through the limiting hole 111 and one end of the limiting column 22 is suitable for abutting against the film sensor 32, and a plurality of first wedge blocks 23 are provided at equal angles around the limiting column 22; a limiting groove 26 is formed on the panel 11, and the second wedge block 24 is slidably arranged in the limiting groove 26, one end of the elastic member 25 abuts against the second wedge block and the other end abuts against the inner wall of the limiting groove 26, and the first wedge block 23 and the second wedge block 24 are sloped together.

[0044] In the above scheme, the user fits the base shell onto the wall, and then locks the base shell by fixing the screws with the mounting ears 13; when in formal use, the user acts on the corresponding point of the panel 11, and then acts on the film sensor 32 through the pressing plate 21 and the limiting column 22. The film sensor 32 cooperates with the electrode plate 31 to receive the signal. Each actionable point is provided with a corresponding electrode plate 31 and film sensor 32, and finally a unified connection is achieved through the control main board 33; in this scheme, when the pressing plate 21 and the limiting column 22 move, they drive the first wedge block 23 to move, and the first wedge block 23 and the second wedge block 24 are connected. The slope cooperates and squeezes the second wedge block 24 to move in the horizontal direction. The second wedge block 24 moving in the horizontal direction squeezes the elastic member 25, that is, the user will have a certain elastic feedback when acting on the panel 11, thereby improving the user experience. After the user removes the external force, the elastic member 25 releases the elastic potential energy to prompt the second wedge block 24 to reset and finally reset the pressing plate 21 and the limit column 22. This solution can realize the automatic reset of the action point and provide the user with sufficient striking feedback, which can effectively improve the user experience, and this structure can also provide a certain protection for the main structure of the switch and improve the impact resistance of the switch.

[0045] For details, see Figure 1-2 , the base shell is hexagonal, and the mounting ears 13 are provided on the edge of the base shell;

[0046] Furthermore, six mounting ears 13 are provided and are distributed at equal angles on different side lines of the base shell, and mounting holes 131 are formed on the mounting ears 13 .

[0047] In the above solution, the hexagonal structure is more uniform in force sharing, and the equal-angle distribution of the six mounting ears 13 can improve assembly stability, while making the force at each position more uniform and improving impact resistance.

[0048] Specifically, a buffer gasket 14 is provided at the mounting ear 13 on the side of the base shell facing away from the panel 11;

[0049] In the above scheme, the buffer gasket 14 is placed between the wall and the bottom shell 12. This scheme can reduce the direct impact between the bottom shell 12 and the wall by further arranging the buffer gasket 14, thereby playing a certain protective role on the base shell, extending the service life, and at the same time improving the impact resistance to a certain extent.

[0050] Specifically, there are six first wedge-shaped blocks 23 and six corresponding second wedge-shaped blocks 24;

[0051] In the above solution, six first wedge blocks 23 are provided around the limiting column 22. When the pressing plate 21 is pressed downward, the striking force can be decomposed from multiple directions, thereby improving the impact resistance.

[0052] For details, see Figure 3-4 An extension column 241 is formed at one end of the second wedge block 24 away from the first wedge block 23 , and the elastic member 25 includes a compression spring, which is suitable for being sleeved on the extension column 241 ;

[0053] In the above solution, the extension column 241 can limit the elastic member 25, thereby making the elastic force recovery direction of the elastic member 25 more stable.

[0054] For details, see Figure 7 , a protective layer is provided on the panel 11, and the protective layer comprises a wear-resistant layer 41, a toughness layer 42 and a flame-retardant layer 43 from top to bottom;

[0055] Furthermore, in one embodiment, the wear-resistant layer 41 is made of polyurethane material;

[0056] Furthermore, in one embodiment, the toughness layer 42 is made of polypropylene material;

[0057] Furthermore, in one embodiment, the flame retardant layer 43 is made of flame retardant fibers;

[0058] In the above scheme, this scheme further adds a protective layer on the panel 11. By adding a wear-resistant layer 41 made of polyurethane material and making it the outermost structure, the wear resistance of the switch exterior can be enhanced, thereby extending its service life. Located under the wear-resistant layer 41 is a toughness layer 42 made of polypropylene material, which can enhance the toughness of the protective layer and reduce the risk of cracking when it is hit; and finally, the flame retardant layer 43 is further added to improve the flame retardant performance of the protective layer, thereby improving the safety of use.

[0059] The above description is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application fall within the scope of the technical solution of the present application.

Claims

1. An impact-resistant membrane switch, characterized in that: include A base shell is formed with an accommodating space, comprising a bottom shell and a panel connected to each other in a stacked manner, wherein mounting ears are provided on the base shell; and a protrusion is formed on the panel; A control mainboard, an electrode disk and a thin film sensor are provided in the accommodation space. A plurality of electrode disks are provided and are electrically connected to the control mainboard respectively. The thin film sensor is provided on the electrode disk. A pressing assembly, which includes a pressing plate, a limiting post, a first wedge block, a second wedge block and an elastic member; a limiting hole is formed on the panel along its thickness direction, the limiting post is passed through the limiting hole and one end of the limiting post is suitable for abutting against the film sensor, and a plurality of first wedge blocks are provided at equal angles around the limiting post; a limiting groove is formed on the panel, the second wedge block is slidably arranged in the limiting groove, one end of the elastic member abuts against the second wedge block and the other end abuts against the inner wall of the limiting groove, and the first wedge block and the second wedge block are sloped together.

2. The impact-resistant membrane switch according to claim 1, characterized in that: The base shell is hexagonal, and the mounting ears are arranged on the edge of the base shell.

3. The impact-resistant membrane switch according to claim 2, characterized in that: There are six mounting ears which are distributed at equal angles on different side lines of the base shell, and mounting holes are formed on the mounting ears.

4. The impact-resistant membrane switch according to claim 3, characterized in that: A buffer gasket is provided at the mounting ear on a side of the base shell facing away from the panel.

5. The impact-resistant membrane switch according to claim 1, characterized in that: There are six first wedge-shaped blocks, and there are correspondingly six second wedge-shaped blocks.

6. The impact-resistant membrane switch according to any one of claims 1 to 5, characterized in that: An extension column is formed at one end of the second wedge-shaped block away from the first wedge-shaped block, and the elastic member includes a compression spring, which is suitable for being sleeved on the extension column.

7. The impact-resistant membrane switch according to claim 5, characterized in that: A protective layer is provided on the panel, and the protective layer comprises a wear-resistant layer, a toughness layer and a flame-retardant layer from top to bottom.

8. The impact-resistant membrane switch according to claim 7, characterized in that: The wear-resistant layer is made of polyurethane material.

9. The impact-resistant membrane switch according to claim 7, characterized in that: The toughness layer is made of polypropylene material.

10. The impact-resistant membrane switch according to claim 7, characterized in that: The flame retardant layer is made of flame retardant fibers.

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