Patent ID: 9384909
Filing Date: 2016-07-05
CPC Classification: H01H

Claim Text:
1. A strong current contact device for high voltage earthing switch, comprising a base with two placed apart contact pieces mounted face-to-face on the base and vertical to an upper surface of the base, each of outer sides of the two contact pieces is provided with a supporting plate, a lower end of the supporting plate is firmly mounted on the base, characterized in that the strong current contact device consists of two groups of Belleville springs positioned in coaxially stacking are placed between each supporting plate and the contact piece on the same side; wherein axes of the two groups of Belleville springs do not coincide with each other vertically; wherein axes of the two groups of Belleville springs on the same side do not coincide with each other horizontally; and where the horizontal direction is the direction where the upper surface of the base extends, and the vertical direction is the direction vertical to the horizontal direction.