Waterproof touch switch

Abstract

The invention discloses a waterproof touch switch, which comprises clamping piece terminals, a base, an elastic piece, a second dustproof film, a waterproof rubber pad, a first dustproof film, a button and a cover plate which are arranged from bottom to top, wherein the base is sunken downwards from the upper end face to form a containing cavity, the four corners of the upper end face of the base extend upwards at the upper end of the containing cavity to form isolation flanges, the upper end face of the base further extends upwards to form a guide column, the number of the clamping piece terminals is two, the lower ends of the two clamping piece terminals extend out of the base to form pins, and the structures of the two pins are in bilateral symmetry. According to the waterproof touch switch, the first dustproof film and the second dustproof film are arranged on the upper side and the lower side of the waterproof rubber pad respectively to form a composite structure, and the first dustproof film can prevent external dust from entering the position between the button and the waterproof rubber pad, and buffer the bottom of the button, so that damage to the waterproof rubber pad is reduced, and the service life of the touch switch is prolonged.

Description

technical field [0001] The invention relates to a light touch switch, in particular to a waterproof light touch switch. Background technique [0002] Tact switches have the advantages of small contact resistance, precise operating force error, and diversified specifications, and are widely used in electronic equipment and white goods. The tact switch of the traditional structure is mainly composed of a base, a button and a cover plate. The cover plate has a through hole, and the button cooperates with the through hole. The through hole in the middle of the cover plate is mainly used for guiding the button. Since the button needs to move smoothly, there is an obvious gap between the through hole in the middle of the cover plate and the button, so that the switch function component does not have a sealed cavity, resulting in the product being incompatible with the product during use. Contact with water vapor or fine dust in the air may fail at any time, and cannot achieve the...

AI Technical Summary

Problems solved by technology

The through hole in the middle of the cover plate is mainly used for guiding the button. Since the button needs to move smoothly, there is an obvious gap between the through hole in the middle of the cover plate and the button, so that the switch function component does not have a sealed cavity, resulting in the product being incompatible with the product during use. Contact with water vapor or fine dust in the air may fail at any time, and cannot achieve waterproof and dustproof effects, so the service life and safety of the product cannot be effectively guaranteed

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