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Button protrusion structure and its manufacturing method

A protruding body and button technology, applied in the direction of electrical components, electric switches, circuits, etc., can solve the problems of difficult matching of materials and sizes, cumbersome steps, etc.

Inactive Publication Date: 2011-11-30
ICHIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is bound to be cumbersome to adhere many convex bodies to the elastic film one by one.
It is made by forming the convex body and the elastic film together, but the required properties of the convex body and the elastic film may be different, and the matching of materials and sizes is not easy to meet the requirements

Method used

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  • Button protrusion structure and its manufacturing method
  • Button protrusion structure and its manufacturing method
  • Button protrusion structure and its manufacturing method

Examples

Experimental program
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Effect test

Embodiment Construction

[0056] For a specific embodiment of the method for manufacturing the key convex structure according to the present invention, please refer to figure 1 Flow chart. Proceed to step 101 to provide a printed circuit board. Proceed to step 103 to provide a co-molded product, which includes a polymer film and a plurality of protrusions. The polymer film includes a first side and a second side. The protrusions are formed by a co-molding process and a polymer film. The first side is combined. Proceed to step 105 to attach a plurality of metal shrapnels to the printed circuit board with a co-molding molding. Make the positions of the protrusions correspond to the metal shrapnel respectively. Proceed to step 107 to provide a keycap part. Perform the assembly of step 109, and set the keycap structure above the co-molded product. Step 111 can be performed as needed to provide a light guide film. The light guide film can be arranged above the co-molding molding, and then the keycap str...

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PUM

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Abstract

The present invention relates to a button convex body structure and its manufacturing method, wherein one side of a polymer film (such as PET film) and a convex body material layer (such as a silicon rubber layer) are subjected to a co-molding process to form a polymer film The film is combined with a co-molding of a plurality of protrusions, and the co-molding is used to attach a plurality of metal domes to the printed circuit board through an adhesive layer, and the positions of the protrusions correspond to the positions of the metal domes. Before the co-molding process, if necessary, the other side of the polymer film is pasted with an adhesive and a release paper, which can make the process more convenient.

Description

Technical field [0001] The invention relates to a key convex body structure and a manufacturing method thereof, in particular to a thinned key convex body structure and a manufacturing method thereof. Background technique [0002] Electronic products such as telephones, cell phones, smart phones, personal digital assistants (PDAs), mobile Internet devices (MID), translators, etc. usually have a keypad . In response to the market demand for thinner 3C products, ultra-thin keys are also increasingly developed. [0003] The traditional key structure has a plunger structure, which combines the protrusion with the base layer under the keycap. In addition, a metal dome is provided on the printed circuit board, and a dome sheet is used to paste it. Hold the metal shrapnel to fix it. When the keytop is pressed, the force is transmitted from the keytop to the convex body, and then to the metal shrapnel below, so that the metal shrapnel deforms and contacts the key contacts on the printed ...

Claims

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Application Information

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IPC IPC(8): H01H11/00H01H13/88H01H13/702
Inventor 蓝绍华
Owner ICHIA TECH
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