Patent ID: 9281145
Filing Date: 2016-03-08
CPC Classification: H01H

Claim Text:
1. A vacuum interrupter, comprising: a first insulating housing; a second insulating housing; a first end cap; a second end cap; a stationary end cap; a first movable contact; a second movable contact; a first movable conductive rod; a second movable conductive rod; a stationary contact; a first bellows; a second bellows; a first movable end shield; a second movable end shield; a stationary end shield; and a stationary end plate; wherein: the first insulating housing, the second insulating housing, the first end cap, and the second end cap are connected to form a closed space; the closed space is in a vacuum state; the stationary end plate is disposed in a middle part of the closed space and divides the closed space into a first closed space and a second closed space; the stationary contact is fixed on the stationary end plate; the first movable conductive rod passes through the first end cap; one end of the first movable conductive rod is disposed inside the first closed space, and the other end of the movable conductive rod is disposed outside the first closed space; the first movable conductive rod is capable of moving upward and downward; the end of the first movable conductive rod disposed inside the first closed space is nested within the first bellows and comprises an end point being fixed together with the first movable contact; one end of the first bellows is fixed on the first end cap, and the other end of the first bellows is fixed on the first movable conductive rod; the second movable conductive rod passes through the second end cap; one end of the second movable conductive rod is disposed inside the second closed space, and the other end of the second movable conductive rod is disposed outside the second closed space; the second movable conductive rod is capable of moving upward and downward; the end of the second movable conductive rod disposed inside the second closed space is nested within the second bellows and comprises an end point being fixed together with the second movable contact; one end of the second bellows is fixed on the second end cap, and the other end of the second bellows is fixed on the second movable conductive rod; a first movable fracture is formed between the first movable contact and the stationary contact; a second movable fracture is formed between the second movable contact and the stationary contact; the first movable end shield is fixed on the first end cap; the second movable end shield is fixed on the second end cap; the stationary end shield is fixed on the stationary end plate; a first stationary fracture is formed between the first movable end shield and the stationary end shield, and a second stationary fracture is formed between the second movable end shield and the stationary end shield; and when the first movable fracture and the second movable fracture reach a full open position, the first movable contact and the second movable contact enter the first movable end shield and the second movable end shield, respectively; and the first movable contact, the second movable contact, and the stationary contact are shielded by the first movable end shield, the second movable end shield, and the stationary end shield, respectively.