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US 12,119,195 B2Granted
Arc extinguishing assembly and circuit breaker comprising same
AssigneeLs Electric Co., Ltd.
InventorYong Ik Park
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to an arc extinguishing assembly including a sealing member and a circuit breaker including same. The sealing member is pressed and elastically deformed between coupling surfaces of the arc extinguishing assembly and the circuit breaker, and accordingly, a gap between the coupling surfaces of the arc extinguishing assembly and the circuit breaker is sealed. Accordingly, when an arc is generated, a temporary pressure increase in the circuit breaker increases and the arc can be smoothly extended.
Claims18
An arc extinguishing assembly, comprising:
- an exhaust which is inserted into an accommodation space having an opening formed on a first side, and covers the opening;
- and
- plate-shaped side portions which are respectively coupled to both side surfaces of the exhaust inside the accommodation space and spaced apart from each other by a predetermined distance to face each other,
- wherein the exhaust comprises:
- an exhaust body having both sides coupled to the plate-shaped side portions in a first direction, an accommodation portion formed to penetrate through a center of the exhaust body, and mounting portions formed to protrude from both sides of the exhaust body in a second direction intersecting with the first direction;
- an exhaust cover which is coupled to one side surface of the exhaust body to cover the accommodation portion;
- and
- a sealing member which is coupled to the exhaust body,
- wherein mounting spaces in which the mounting portions are mounted are formed on both sides of the opening in the second direction, respectively, and
- wherein the sealing member comprises:
- a first sealing portion which is located between the mounting portion and the mounting space and extends by a predetermined length in the first direction;
- a second sealing portion which is located between the exhaust cover and the exhaust body and extends from both sides of the exhaust body in the first direction by a predetermined length in the second direction;
- and
- a third sealing portion which is located between the mounting portion and the mounting space and connects both ends of the first sealing portion and both ends of the second sealing portion, and
- wherein the second sealing portion comprises:
- a second base portion which extends by a predetermined length in the second direction;
- and
- a wing which is formed to protrude from the second base portion in a third direction away from the accommodation portion and in a fourth direction opposite to the exhaust body and extends by a predetermined length in the second direction.
15 more elements
A circuit breaker, comprising:
- a circuit breaker body formed with an accommodation space with one side open inside;
- and
- an arc extinguishing assembly comprising an exhaust which is inserted into the accommodation space and covers an opening of the accommodation space,
- wherein the exhaust comprises:
- an exhaust body through which an accommodation portion is formed to penetrate a center of the exhaust body, and mounting portions are formed to protrude from both sides;
- an exhaust cover which is coupled to one side surface of the exhaust body to cover the accommodation portion;
- and
- a sealing member which is coupled to the exhaust body,
- wherein mounting spaces in which the mounting portions are mounted are formed on both sides of an opening of the accommodation space in a first direction in which the mounting portion protrudes, respectively,
- wherein in the mounting spaces,
- a first coupling surface facing the mounting portion is provided;
- and
- a third coupling surface facing the mounting portion is provided on both sides of the first coupling surface, respectively,
- wherein second coupling surfaces on which both sides of the exhaust are supported are provided on both sides of the opening of the accommodation space, in a second direction intersecting with the first direction, respectively, and
- wherein the sealing member comprises:
- a first sealing portion which is located between the mounting portion and the first coupling surface;
- a second sealing portion which is located between the exhaust cover and the exhaust body, on both sides in the second direction;
- and
- a third sealing portion which is located between the mounting portion and the third coupling surface and connects both ends of the first sealing portion and both ends of the second sealing portion, and
- wherein the second sealing portion comprises:
- a second base portion which is located between the exhaust cover and the exhaust body, on both sides in the second direction;
- and
- a wing which is formed to protrude from the second base portion in a third direction away from the accommodation portion and in a fourth direction opposite to the exhaust body.
20 more elements
Dependencies are inferred from the claim text.