ABS hard key waterproof structure

Abstract

The utility model relates to the technical field of electrical product buttons, in particular to an ABS hard key waterproof structure, which comprises a key body and a shell, a pressing opening is arranged on the surface of the shell, a mounting plate is arranged in the shell, an elastic sealing part is arranged on the plate surface, close to the pressing opening, of the mounting plate, and the elastic sealing part is arranged in the shell. An abutting cylinder is arranged at a pressing opening in the side, close to the mounting plate, of the shell in a communicating mode, the peripheral edge of the elastic sealing part abuts against the mounting plate through the end, away from the shell, of the abutting cylinder, the middle of the elastic sealing part arches in the direction close to the pressing opening, the elastic sealing part and the mounting plate form a mounting chamber, and the key body is located in the mounting chamber; an ABS key is movably arranged in the pressing opening above the elastic sealing part, the elastic sealing part and the key body can be pressed when the ABS key is pressed, and the elastic sealing part can rebound and drive the ABS key to be far away from the key body when the ABS key is released. According to the utility model, the waterproof effect of the hard-hand-feeling key can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of buttons of electrical products, in particular to an ABS hard button waterproof structure. Background Art

[0002] ABS resin is a thermoplastic polymer material with high strength, good toughness and easy processing. Because of its high strength, corrosion resistance and high temperature resistance, it is often used to make plastic shells of instruments or keys of electronic products. Among them, keys are also called buttons. Buttons are a commonly used control electrical component, which is often used to connect or disconnect control circuits (where the current is very small) to achieve the purpose of controlling the operation of motors or other electrical equipment. Buttons include normally open buttons and normally open and normally closed buttons. Generally speaking, red buttons are used to stop a function, while green buttons can start a function; buttons are usually round or square in shape.

[0003] Most electronic products use buttons, the most basic human-machine interface tool. With the improvement and innovation of industrial level, the appearance of buttons has become more and more diverse and rich in visual effects. Buttons include a pressing body, an action contact, and a reset spring. Squeezing the pressing body can achieve the effect of connecting or disconnecting the control circuit.

[0004] In the related technology, the key bodies used in the current mainstream key structures are mostly made of hard-feeling ABS material. This type of key structure is relatively simple, the operation is relatively direct, and the sound during operation is crisp and hard. However, the waterproof effect of this type of ABS hard-feel key is poor. If it is used for a long time in an environment with high air humidity or outdoors, liquid water is likely to adhere to the surface of the key, and the liquid water can easily penetrate into the inside of the key through the gap of the key itself, which can easily shorten its effective service life. Utility Model Content

[0005] The utility model aims to provide an ABS hard key waterproof structure to solve the problem that the ABS hard-touch key has a poor waterproof effect.

[0006] The utility model is realized by the following technical solutions:

[0007] A waterproof structure for an ABS hard key comprises a key body and a shell, wherein a pressing hole is provided on the surface of the shell, a mounting plate is arranged inside the shell, an elastic sealing portion is arranged on the plate surface of the mounting plate near the pressing hole, an abutment tube is arranged in communication with the pressing hole on one side of the shell near the mounting plate, an end of the abutment tube away from the shell presses the edges of the elastic sealing portion against the mounting plate, a middle portion of the elastic sealing portion arches toward the pressing hole and forms an installation chamber with the mounting plate, and the key body is located in the installation chamber; an ABS key is movably arranged in the pressing hole above the elastic sealing portion, the elastic sealing portion and the key body can be pressed when the ABS key is pressed, and when the ABS key is released, the elastic sealing portion can rebound and drive the ABS key away from the key body.

[0008] Furthermore, the elastic sealing portion includes an elastic silicone pad, the abutment tube presses the edges of the silicone pad against the mounting plate, the silicone pad as a whole is arched away from the mounting plate, and the ABS button is located in a pressing hole above the silicone pad.

[0009] Furthermore, the inner diameter of the abutment tube is larger than the inner diameter of the pressing port, and a limiting portion is provided at one end of the ABS button close to the silicone pad. The limiting portion is located inside the abutment tube, and the outer diameter of the limiting portion is larger than the inner diameter of the pressing port.

[0010] Furthermore, a limiting hole is provided at a corresponding position of the silicone pad close to one side of the button body, and the pressing body of the button body extends into the limiting hole.

[0011] Furthermore, a vent hole is provided on the installation plate, and the vent hole is communicated with the interior of the installation chamber.

[0012] Furthermore, the elastic sealing portion includes a soft waterproof layer and a spring, the abutment tube presses the edges of the soft waterproof layer against the mounting plate, and the button body is located between the soft waterproof layer and the mounting plate, one end of the spring is connected to the mounting plate, and the other end extends in a direction close to the soft waterproof layer and supports the soft waterproof layer, the button body is located in the inner circle of the spring, and the height of the spring after supporting the soft waterproof layer is higher than the button body.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] 1. In the present invention, the key body can be protected in the installation room inside the housing by the elastic sealing part, so that the elastic sealing part separates the key body from the pressing port, and liquid water is difficult to enter the installation room through the pressing port and then contact the key body, which can improve the waterproof performance of the key body, and can greatly reduce the situation where liquid water penetrates into the key body through the gap of the key body itself, so that the key body can be used in high humidity or outdoor environments for a long time, and the effective service life of the key can be extended. In specific operations, only the ABS button needs to be pressed to press the key body below through the elastic sealing part, thereby realizing the control of the corresponding electrical equipment;

[0015] 2. When the elastic sealing part adopts a silicone pad, the structure is relatively simple, and since the limiting hole on the silicone pad can limit the key body to the center position of the installation room, the key fixing method such as hot melting can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model.

[0017] In the attached picture:

[0018] Figure 1 It is a cross-sectional structural diagram of the utility model;

[0019] Figure 2 It is a cross-sectional structural diagram of the utility model.

[0020] Marks and corresponding parts names in the attached drawings:

[0021] 1. Button body; 2. Shell; 3. Pressing port; 4. Mounting plate; 5. Abutment tube; 6. Mounting chamber; 7. ABS button; 8. Silicone cushion; 9. Limiting part; 10. Limiting hole; 11. Ventilation hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the embodiments and drawings. The schematic implementation mode and description of the utility model are only used to explain the utility model and are not intended to limit the utility model. It should be noted that the utility model is already in the actual development and use stage.

[0023] Example 1

[0024] An ABS hard key waterproof structure, refer to Figure 1 , Figure 2, including a key body 1, and also including a shell 2, a pressing hole 3 is opened on the surface of the shell 2, a mounting plate 4 is arranged in the shell 2, an elastic sealing part is arranged on the plate surface of the mounting plate 4 near the pressing hole 3, and a contact tube 5 is arranged in communication with the pressing hole 3 on the side of the shell 2 near the mounting plate 4, and the end of the contact tube 5 away from the shell 2 presses the edges of the elastic sealing part against the mounting plate 4, and the middle part of the elastic sealing part arches toward the direction close to the pressing hole 3 and forms a mounting chamber 6 with the mounting plate 4, and the key body 1 is located on the mounting plate 4 inside the mounting chamber 6; an ABS button 7 is movably arranged in the pressing hole 3 above the elastic sealing part, and when the ABS button 7 is pressed, the elastic sealing part and the key body 1 can be pressed, and when the ABS button is released, the elastic sealing part can rebound and drive the ABS button 7 away from the key body 1. Among them, the mounting plate 4 adopts a PCB board, which is used to improve the insulation performance of the key body 1 when it is installed.

[0025] In this solution, the key body 1 can be protected in the installation chamber 6 inside the shell 2 by the elastic sealing part, so that the elastic sealing part separates the key body 1 from the pressing port 3, and it is difficult for liquid water to enter the installation chamber 6 through the pressing port 3 and then contact the key body 1, which can improve the waterproof performance of the key body 1, and can greatly reduce the situation where liquid water penetrates into the key body 1 through the gap of the key body 1 itself, so that the key body 1 can be used in high humidity or outdoor environments for a long time, and the effective service life of the key can be extended. In specific operations, the ABS hard key waterproof structure can be placed horizontally, so that the ABS key 7 is located above the key body 1. Only by pressing the ABS key 7 downward, the key body 1 below can be pressed through the elastic sealing part, thereby realizing the control of the corresponding electrical equipment, and releasing the ABS key 7, due to the rebound function of the elastic sealing part, the ABS key 7 can be driven to return to the initial state, so that the key body 1 below can effectively trigger the corresponding conduction or disconnection action.

[0026] Example 2

[0027] Based on Example 1, in this example, reference Figure 1 , Figure 2 The elastic sealing portion includes an elastic silicone pad 8, and the abutting tube 5 presses the edges of the silicone pad 8 against the mounting plate 4. The silicone pad 8 is in an arched shape away from the mounting plate 4. The ABS button 7 is located in the pressing port 3 above the silicone pad 8.

[0028] The shape of the silicone pad 8 is integrally formed, that is, the silicone pad 8 naturally forms an arched shape. When the ABS button 7 is pressed, the ABS button 7 will squeeze the silicone pad 8 downward, and the silicone pad 8 is deformed by the force to squeeze the pressing body of the button body 1 downward; when the ABS button 7 is released, the silicone pad 8 can drive the ABS button 7 to rebound upward to the initial state due to its own elasticity, so that the pressing body of the button body 1 below can rebound, thereby effectively triggering the on or off function of the button body 1.

[0029] Example 3

[0030] Based on Example 2, in this example, refer to Figure 1 , Figure 2 The inner diameter of the abutting tube 5 is larger than the inner diameter of the pressing port 3 , and a limiting portion 9 is provided at one end of the ABS button 7 close to the silicone pad 8 . The limiting portion 9 is located inside the abutting tube 5 , and the outer diameter of the limiting portion 9 is larger than the inner diameter of the pressing port 3 .

[0031] In this solution, the limiting portion 9 is limited in the abutment tube 5, which can prevent the ABS button 7 from being separated from the housing 2, making it convenient for the ABS hard button waterproof structure to be applied to various installation postures.

[0032] Example 4

[0033] Based on Example 3, in this example, refer to Figure 1 , Figure 2 A limiting hole 10 is opened at a corresponding position of the silicone pad 8 close to one side of the button body 1, the pressing body of the button body 1 extends into the limiting hole 10, and the pressing surface of the pressing body of the button body 1 approaches the corresponding inner wall of the limiting hole 10.

[0034] In this solution, the limiting hole 10 on the inner side of the silicone pad 8 can limit the position of the button body 1 in the installation chamber 6, and can limit the button body 1 at the center position corresponding to the pressing port 3 in the installation chamber 6, which can reduce the need for hot melting or other fixing methods for the button.

[0035] Example 5

[0036] Based on Example 4, in this example, reference Figure 1 , Figure 2 The mounting plate 4 is provided with a vent hole 11, which is connected to the inside of the mounting chamber 6. When the silicone pad 8 is squeezed, the air in the mounting chamber 6 is compressed and easily overflows through the gap between the silicone pad 8 and the mounting plate 4, thereby forming a vacuum in the mounting chamber 6, so that the silicone pad 8 and the mounting plate 4 are adsorbed together, which is not conducive to the silicone pad 8 rebounding to its original shape, thereby affecting the rebound of the pressing body of the key body 1. The vent hole 11 can prevent the vacuum environment from forming in the mounting chamber 6.

[0037] Example 6

[0038] On the basis of Example 1, in this embodiment, the elastic sealing portion includes a soft waterproof layer and a spring, the abutment tube 5 presses the edges of the soft waterproof layer against the mounting plate 4, the soft waterproof layer and the mounting plate 4 together form a mounting chamber 6, and the button body 1 is located inside the mounting chamber 6, one end of the spring is connected to the mounting plate 4, and the other end extends toward the direction close to the soft waterproof layer and supports the waterproof layer, the button body 1 is located in the inner circle of the spring, and the height of the soft waterproof layer after the spring supports it is higher than the button body 1.

[0039] Among them, the soft waterproof layer can adopt a waterproof layer structure of soft materials such as polyethylene film, PVC film, etc.; the soft waterproof layer is pressed tightly against the mounting plate 4 by the abutment tube 5, which can provide waterproof protection for the button body 1; when the ABS button 7 is pressed, the spring will be compressed. When the spring is compressed to a height lower than the button body 1, the ABS button 7 will squeeze the soft waterproof layer and the pressing body of the button body 1. After pressing the pressing body of the button body 1 and then releasing the ABS button 7, the spring rebounds to drive the soft waterproof layer and the ABS button 7 to return to the initial state, which facilitates the rebound of the pressing body of the button body 1 to effectively trigger its function of turning on or off the control circuit.

[0040] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An ABS hard key waterproof structure, comprising a key body (1), characterized in that: The invention comprises a shell (2), a pressing opening (3) is provided on the surface of the shell (2), a mounting plate (4) is arranged in the shell (2), an elastic sealing part is arranged on the plate surface of the mounting plate (4) near the pressing opening (3), a contact tube (5) is arranged in communication with the pressing opening (3) on the side of the shell (2) near the mounting plate (4), the end of the contact tube (5) away from the shell (2) presses the edges of the elastic sealing part against the mounting plate (4), the middle part of the elastic sealing part is arched in the direction close to the pressing opening (3) and forms a mounting chamber (6) with the mounting plate (4), and the key body (1) is located in the mounting chamber (6); an ABS button (7) is movably arranged in the pressing opening (3) above the elastic sealing part, and when the ABS button (7) is pressed, the elastic sealing part and the key body (1) can be pressed, and when the ABS button is released, the elastic sealing part can rebound and drive the ABS button (7) away from the key body (1).

2. The ABS hard key waterproof structure according to claim 1, characterized in that: The elastic sealing portion comprises an elastic silicone pad (8), the abutting tube (5) presses the edges of the silicone pad (8) against the mounting plate (4), the silicone pad (8) as a whole is in an arched shape in a direction away from the mounting plate (4), and the ABS button (7) is located in the pressing port (3) above the silicone pad (8).

3. The ABS hard key waterproof structure according to claim 2, characterized in that: The inner diameter of the abutting tube (5) is larger than the inner diameter of the pressing opening (3); a limiting portion (9) is provided at one end of the ABS button (7) close to the silicone soft pad (8); the limiting portion (9) is located inside the abutting tube (5), and the outer diameter of the limiting portion (9) is larger than the inner diameter of the pressing opening (3).

4. The ABS hard key waterproof structure according to claim 3, characterized in that: A limiting hole (10) is provided at a corresponding position of the silicone soft pad (8) close to one side of the key body (1), and the pressing body of the key body (1) extends into the limiting hole (10).

5. The ABS hard key waterproof structure according to any one of claims 2 to 4, characterized in that: The mounting plate (4) is provided with a vent hole (11), and the vent hole (11) is communicated with the interior of the mounting chamber (6).

6. The ABS hard key waterproof structure according to claim 1, characterized in that: The elastic sealing portion comprises a soft waterproof layer and a spring, the abutting tube (5) presses the edges of the soft waterproof layer against the mounting plate (4), and the key body (1) is located between the soft waterproof layer and the mounting plate (4), one end of the spring is connected to the mounting plate (4), and the other end extends in a direction close to the soft waterproof layer and supports the soft waterproof layer, the key body (1) is located in the inner circle of the spring, and the height of the spring after supporting the soft waterproof layer is higher than the key body (1).

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