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Waterproof keyboard structure

A waterproof keyboard and keycap technology, applied in electrical components, electrical switches, circuits, etc., can solve the problems of waterproof failure of the switch membrane 13 and the decline of the waterproofness of the switch membrane 13, so as to increase the bonding and barrier properties, and reduce the penetration of the switch. The effect of film chance

Active Publication Date: 2015-09-02
DARFON ELECTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the colloid printing process, when there is a lack of glue or foreign matter, it is easy to cause the waterproofing of the switch film 13 to fail.
For example: when there is a lack of glue, the glue wall of the glue 133 does not have a thick enough glue wall to block water or moisture, or when the bondability is not enough to block water or moisture from penetrating, the water resistance of the switch film 13 will decrease

Method used

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  • Waterproof keyboard structure
  • Waterproof keyboard structure

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0047] Please refer to Figure 3A , which is Figure 2A The schematic cross-sectional view of the switch film 23 along the line I-I. The switch film 23 includes a first film layer 231 , a first electrode 241 , a second film layer 232 , a second electrode 242 , a right glue 233 , a left glue 234 , a right mask layer 235 and a left mask layer 236 . The first film layer 231 has a first film layer right end point R1 and a first film layer left end point L1 . The width between the right end point R1 of the first film layer and the left end point L1 of the first film layer is W1, so that the first film layer 231 has a first width W1. The second film layer 232 has a second film layer right end point R2 and a second film layer left end point L2. The width between the right end point R2 of the second film layer and the left end point L2 of the second film layer is W2, so that the second film layer 232 has a second width W2. The second width W2 is smaller than the first width W1. I...

no. 2 example

[0053] Next, please refer to Figure 3B , which is Figure 2A The schematic cross-sectional view of the switch film 23 along the I-I line. In this embodiment, the switch film 23 includes the first film layer 231, the first electrode 241, the second film layer 232, the second electrode 242, the right colloid 233, the left colloid 234, the right side film layer 235 and In addition to the left mask layer 236 , it may further include a right bottom mask layer 237 and a left bottom mask layer 238 .

[0054] In this embodiment, in addition to covering the side surface 232a of the right end point R2 of the second film layer, the right glue 233 can also extend downwards below the second film layer 232, so that the right glue 233 covers the part of the second film layer 232 Bottom surface 232c. Similarly, the right bottom film layer 237 extends leftward from the lower end of the right side film layer 235, and the right bottom film layer 237 covers part of the bottom surface 233b of ...

no. 3 example

[0057] Please refer to Figure 4A , which is Figure 2A The schematic cross-sectional view of the switch film 23 along the I-I line. In this embodiment, the switch film 23 includes the first film layer 231, the first electrode 241, the second film layer 232, the second electrode 242, the right colloid 233, the left colloid 234, the right side film layer 235 and In addition to the left mask layer 236 , a spacer layer 239 may be further included. The spacer film layer 239 is located between the first film layer 231 and the second film layer 232, the right end 239a of the spacer film layer 239 extends from the left side surface 233c of the right colloid 233 to the right colloid 233, and the left end 239b of the spacer film layer 239 Extends from the right side surface 234c of the left colloid 234 into the left colloid 234 . Therefore, the spacer film layer 239 can be fixed between the first film layer 231 and the second film layer 232 by the right glue 233 and the left glue 23...

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Abstract

The invention provides a waterproof keyboard structure. The waterproof keyboard structure comprises a bottom board, keycaps and a switch film. The switch film comprises a first film layer, a second film layer, rubber, and side film layers. The first film layer is provided with a first electrode and a first film layer right end and is in first width. The second film layer is provided with a second electrode and a second film layer right end and is in second width. The second width is smaller than the first width. The rubber is connected to the first film layer and the second film layer. The rubber extends from a position close to the second film layer right end to a position close to the first film layer right end, thereby covering the side surface of the second film right end. The side film layers extend down from the first film layer right end and cover part of the side surfaces of the rubber to proof water. The switch film is in the modified waterproof structure, so that the right rubber is provided with a sufficient thickness wall to stop water or damp. The side surface of the right rubber is covered to stop water or damp from permeating.

Description

technical field [0001] The present invention relates to a keyboard structure, and in particular to a waterproof keyboard structure. Background technique [0002] Please refer to Figure 1A and Figure 1B , which are respectively a top view of a known switch film 13 and a schematic cross-sectional view along line I-I. The switch film 13 includes a first film layer 131 , a first electrode 141 , a second film layer 132 , a second electrode 142 and a colloid 133 . The switch film 13 can generate an on / off signal according to whether the first electrode 141 and the second electrode 142 are conducting or not. In addition, the colloid 133 has water resistance and is bonded between the first film layer 131 and the second film layer 132 to prevent water or humidity from entering so that the switch film 13 has a waterproof effect. [0003] The conventional glue 133 is generally formed on the film layer by printing, and then another glue layer is covered on the glue 133 so that the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/86
Inventor 罗义童
Owner DARFON ELECTRONICS (SUZHOU) CO LTD