Arc extinguishing assembly and circuit breaker comprising same
AssigneeLs Electric Co., Ltd.
InventorHan Baek Chung
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to an arc extinguishing assembly, including side members which are spaced apart by a certain distance and disposed to face each other; an exhaust which is installed on an upper part of the side member; a plurality of grids which are installed between the side members and having both ends fixed to each of the side members; an arc guide having one end coupled to the side member and installed under the plurality of grids; and a magnet which is installed such that both ends are respectively coupled to the side members under the plurality of grids, and forms an electromagnetic force in a direction toward the grid, and a circuit breaker including the same.
Claims13
An arc extinguishing assembly, comprising:
- side members which are spaced apart by a certain distance and disposed to face each other;
- an exhaust which is installed on an upper part of the side members;
- a plurality of grids which are installed between the side members and having both ends fixed to each of the side members;
- an arc guide formed of an insulating material having one side coupled to the side members and installed under the plurality of grids;
- and
- a magnet which is installed such that both ends are respectively coupled to the side members under the plurality of grids, and forms an electromagnetic force in a direction toward the grid,
- wherein the magnet comprises:
- an electromagnet having both sides fixed to a lower part of the side members, respectively, and forming a magnetic field by being magnetized by an electric current;
- and
- a permanent magnet which is installed inside the electromagnet and rotates in a direction crossing an extension direction of the electromagnet, and
- wherein the magnet is fixed to both sides of the arc guide.
A circuit breaker, comprising:
- a stationary contact;
- a movable contact that moves in a direction toward the stationary contact or a direction away from the stationary contact;
- and
- an arc extinguishing assembly which is located adjacent to the stationary contact and the movable contact so as to extinguish an arc which is generated by the stationary contact and the movable contact being spaced apart,
- wherein the arc extinguishing assembly comprises:
- side members which are spaced apart by a certain distance and disposed to face each other;
- an exhaust which is installed on an upper part of the side members;
- a plurality of grids which are installed between the side members and having both ends fixed to each of the side members;
- an arc guide formed of an insulating material having one end coupled to the side member and installed under the plurality of grids;
- and
- a magnet which is installed such that both ends are respectively coupled to the side members under the plurality of grids, and forms an electromagnetic force in a direction toward the grid, and
- wherein the magnet comprises:
- an electromagnet having both sides fixed to a lower part of the side members, respectively, and forming a magnetic field by being magnetized by an electric current;
- and
- a permanent magnet which is installed inside the electromagnet and rotates in a direction crossing an extension direction of the electromagnet, and
- wherein the magnet is fixed to both sides of the arc guide.
Dependencies are inferred from the claim text.