Switch component

A technology of switch components and parts, which can be used in electrical switches, electrical components, contacts, etc., to solve problems such as poor contact
CN101699594BActive Publication Date: 2012-01-11SHANGHAI BAICHENG ELECTRONICS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI BAICHENG ELECTRONICS
Publication Date
2012-01-11

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Abstract

The invention particularly relates to a switch and is used to improve the structure at the contact part used for turning on and off in a switch to reduce current in each contact point and total contact resistance. The problem of poor contact at the pin joint position of a pin joint contact rod and a supporting part in the conventional switch is solved by arranging an additional elastic metal plate on the pin joint contact rod. Due to the contact part arranged on a rotary contact device at the position of a forward / reverse conversion mechanism, the total contact area is increased, current in each contact point is further reduced, and the total contact resistance and heat generation between the rotary contact device at the position of the forward / reverse conversion mechanism and an internalinput and an external output are reduced.
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Description

[0001] This application is a divisional application of an invention patent application named "Switch Assembly", application number: 200610002402.0, and application date January 27, 2006. technical field

[0002] The invention relates to an electrical switch assembly. It also relates to a high power DC switch, more particularly to a trigger switch for trigger control of a power tool. Background technique

[0003] A Marquardt (Trademark) type 2711.5507 high power DC switch is already known in the art with a power of 18V DC 25A. US6717080B1 discloses a trigger switch assembly for a power tool with an electric motor. US6741051B2 discloses a trigger controller for a power tool including an electric motor. US6104105 also discloses an electrical switch for turning on or off a tool with an electric motor. US6794594 discloses a trigger switch assembly for controlling electric tools. The applicant himself has sold switch assemblies for controlling power tools as well as various ot...

Claims

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