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Key-press structure

A technology of buttons and pressing parts, which is applied to the structure of telephone sets, building structures, electrical components, etc., and can solve problems such as the sealing glue is susceptible to temperature changes, the procedure is complicated, and the effect of waterproof and dustproof is affected.

Inactive Publication Date: 2009-06-24
SHENZHEN FUTAIHONG PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, waterproof keyboards are often wrapped with waterproof film on the surface of the keys, but the process is complicated and difficult to control, and the waterproof film is easily damaged; in addition, there is also a form of sealing glue, but it will increase the manufacturing cost, and the sealing glue Susceptible to temperature changes, which will affect the waterproof and dustproof effect

Method used

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Examples

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Embodiment Construction

[0013] The button structure of the present invention is applicable to portable electronic devices such as mobile phones and Personal Digital Assistants (PDAs). In this embodiment, the button structure on the side of the mobile phone is used as an example for illustration.

[0014] see figure 1 and figure 2 , the key structure of the mobile phone is used to press the internal printed circuit board 20 to realize the input of information. The printed circuit board 20 is a rectangular board, and a contact sensing area 21 is provided at both ends thereof.

[0015] The button structure 10 includes a casing 11 , a button cover 12 and a button body 13 .

[0016] The casing 11 includes a peripheral wall 111 and a bottom wall 112 . The bottom wall 112 and the surrounding wall 111 define an accommodating cavity 113 . A substantially rectangular button hole 1111 is defined on the peripheral wall 111 .

[0017] The key cover 12 is roughly a rectangular key shell, which is used to pas...

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PUM

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Abstract

The invention provides a press key structure, comprises a shell and a press key body; the shell is provided with a press key hole; one side of the press key body is provided with a contact point, and the other side is provided with a pressing part; the press key body is contained in the press key hole; the press key body is annularly provided with a protruding strip around the pressing part; and the protruding strip is welded on the inner wall of the shell.

Description

technical field [0001] The invention relates to a key structure, in particular to a waterproof and dustproof key structure. Background technique [0002] With the development of wireless communication and information processing technology, portable electronic devices such as mobile phones and personal digital assistants (PDA) are emerging, so that consumers can fully enjoy various conveniences brought by high technology anytime and anywhere. In portable electronic devices, keys as user input terminals have become an essential part of the portable electronic devices. [0003] The key structure of the existing portable electronic device is mainly to set the key body on the shell hole of the portable electronic device, and the bottom of the key body is provided with a contact point, which is used to press the contact sensing area of ​​the circuit board to sense input information. If this kind of button structure is often placed in high humidity or accidentally wet in rainy day...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/06H01H13/16H04M1/23
CPCH01H2221/09H01H13/06H01H2223/002H01H13/86Y10T70/7876
Inventor 刘晔涂小华秦中树杨刚
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD