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Waterproof key structure

A key and soft glue technology, applied in electrical components, electrical switches, circuits, etc., can solve the problems of complicated installation process, high manufacturing cost, and difficult installation, etc., to achieve easy installation and operation, reduce mold opening costs, and improve yield. Effect

Inactive Publication Date: 2019-10-08
深圳海棠通信技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the waterproof button structure provided by the prior art has many internal components, and the size of each component is small, which makes it difficult to install, which makes the installation process complicated and causes high manufacturing costs.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 2 and 3 As shown, a waterproof button structure provided by the embodiment of the present invention includes a main body rubber case 1, a waterproof soft rubber 2, a motion button 3 and an electronic component board 4; the main body rubber case 1 is sealed and installed above the electronic component board 4, and the main body The plastic shell 1 is provided with a round through hole 11 corresponding to the switching element on the electronic component board 4; the waterproof soft rubber 2 is sealed and fixed on the main body rubber shell 1 through the round through hole 11, and the lower part of the waterproof soft rubber 2 protrudes from the round through hole 11. And can be in contact with the switch element; the motion button 3 is installed above the waterproof soft rubber 2 .

[0030] In this embodiment, the material of the main rubber shell 1 can be thermoplastic materials such as polycarbonate (PC) or PC+acrylonitrile-butadiene-styrene copolymer ...

Embodiment 2

[0034] This embodiment is basically the same as the solution described in Embodiment 1, the difference is that, as Figure 4 As shown, the side wall of the waterproof soft rubber 2 in contact with the round through hole 11 is provided with an arc-shaped protrusion 21 .

[0035] In this embodiment, the arc-shaped convex hull 21 can be arranged in the middle of the side wall of the waterproof soft rubber 2, and the arc-shaped convex hull 21 constitutes a secondary waterproof structure. In actual use, the arc-shaped convex hull 21 The quadratic water is realized through interference fit with the round through hole 11. Further, in order to achieve the optimal waterproof effect, in this embodiment, the interference between the arc-shaped convex hull 21 and the round through hole 11 is 0.20 mm.

Embodiment 3

[0037] This embodiment is basically the same as the solution described in Embodiment 1, the difference is that, as Figure 4 , the top area of ​​the waterproof soft rubber 2 is larger than the round through hole 11, and the top of the waterproof soft rubber 2 is fixedly connected with the main body rubber shell 1 through waterproof glue sealing. Further, in order to achieve effective waterproofing, the minimum width of the top of the waterproof soft rubber 2 in contact with the main rubber shell 1 is greater than 2.00mm.

[0038] In this embodiment, the waterproof adhesive can be waterproof double-sided adhesive or accumulated water waterproof adhesive, etc. During the installation process, it is necessary to press the waterproof soft adhesive 2 firmly on the round through hole 11 to achieve the top of the waterproof soft adhesive 2 The purpose of fully bonding with the surface of the main rubber shell 1 .

[0039] Through the above technical solutions, the effect of secondar...

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PUM

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Abstract

The invention discloses a waterproof key structure, so as to solve the problem that the existing waterproof key structure is complicated. The waterproof key structure comprises a main body rubber shell (1), waterproof soft rubber (2), a motion key (3) and an electronic component board (4), wherein the main body rubber shell (1) is sealed above the electronic component board (4); the position, corresponding to a switch component on the electronic component board (4), on the main body rubber shell (1) is provided with a circular through hole (11); the waterproof soft rubber (2) is sealed and fixed on the main body rubber shell (1) through the circular through hole (11); the lower portion of the waterproof soft rubber (2) extends out of the circular through hole (11) and can touch the switchcomponent; and the motion key (3) is mounted above the waterproof soft rubber (2). The waterproof key structure can be applied to electronic devices that require waterproofing of keys.

Description

technical field [0001] The invention relates to a key structure, in particular to a waterproof key structure. Background technique [0002] With the continuous expansion of people's activity areas, the waterproof requirements of electronic equipment are getting higher and higher. As an important part of electronic equipment, the design of its waterproof structure is also increasingly valued by people. [0003] Such as figure 1 As shown, the waterproof button structure provided by the prior art includes: a plastic shell 101, a plastic button 102, a spring 103, a silicone ring 104, a metal ring 105 and a metal rod 106; The socket spring 103 is installed in the groove; the bottom of the plastic shell 101 is provided with a cylindrical through hole, the metal rod 106 is injected into the cylindrical through hole by in-mold injection molding, and the silicone ring 104 is arranged on the side of the cylindrical through hole 106 At the wall gap, the metal ring 105 is sleeved on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/06H01H13/14
CPCH01H13/06H01H13/14
Inventor 孔祥华
Owner 深圳海棠通信技术有限公司