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US 12,315,688 B2Granted
Arc extinguishing assembly
AssigneeLs Electric Co., Ltd.
InventorYong Ik Park
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to an arc extinguishing assembly which, when an arc is generated, has a structure that can push the generated arc in a direction farther away from a stationary contact point by forming a transient pressure difference between arc guides.
Claims20
An arc extinguishing assembly, comprising:
- a frame having side portions which are spaced apart by a predetermined distance and facing each other and an exhaust connecting between the side portions from a top side of the side portions;
- a plurality of grids which are inserted between the side portions, coupled to the frame, formed in a plate shape and stacked to be spaced apart from each other by a predetermined distance in a front-to-rear direction in which the plurality of grids extends;
- an arc runner coupled to each of the side portions and surrounding the plurality of grids from a rear side thereof along the front-to-rear direction;
- and
- a plurality of arc guides which are located on a bottom side of the plurality of grids and extending in the front-to-rear direction, and respectively coupled to the side portions,
- wherein the plurality of arc guides respectively comprise wings protruding toward each other, and
- wherein a distance between the wings increases along the front-to-rear direction, such that the distance is shorter for portions of the wings opposite to the arc runner than portions of the wings adjacent to the arc runner.
4 more elements
An arc extinguishing assembly, comprising:
- a frame having side portions spaced apart by a predetermined distance and facing each other and an exhaust connecting between the side portions from one side of the side portions;
- a plurality of grids which are inserted between the side portions, coupled to the frame, formed in a plate shape and stacked to be spaced apart from each other by a predetermined distance in a front-to-rear direction;
- and
- a plurality of arc guides which are located on one side of the plurality of grids and extending in the front-to-rear direction and provided separately from the frame, and respectively coupled to the side portions,
- wherein the plurality of arc guides respectively comprise:
- wings protruding toward each other, that form a front part of the plurality of arc guides;
- and
- extensions extending from the wings that form a rear part of the plurality of arc guides;
- and
- wherein a distance between the wings increases toward the exhaust,
- wherein a distance between the wings of each of the plurality of arc guides is shorter than a distance between the extensions of each of the plurality of arc guides.
8 more elements
An arc extinguishing assembly, comprising:
- a frame extending in a top-to-bottom direction from a top side to a bottom side, the frame having side portions spaced apart by a predetermined distance in a left-to-right direction from a left side to a right side of the frame and facing each other and an exhaust connecting between the side portions from one side of the side portions;
- a plurality of grids which are inserted between the side portions, coupled to the frame, formed in a plate shape and stacked to be spaced apart from each other by a predetermined distance in a front-to-rear direction extending from a front side to a rear side of the frame that is perpendicular to the top-to-bottom direction and the left-to-right direction;
- an arc runner coupled to each of the side portions and surrounding the plurality of grids from a rear side thereof along the front-to-rear direction;
- and
- a plurality of arc guides which are located on one side of the plurality of grids and extending in the front-to-rear direction, and respectively coupled to the side portions,
- wherein the plurality of arc guides respectively comprise wings protruding toward each other, and
- wherein a distance between the wings increases toward the rear side along the front-to-rear direction such that the distance is shorter for portions of the wings opposite to the arc runner than portions of the wings adjacent to the arc runner and toward the exhaust along the top-to-bottom direction.
4 more elements
Dependencies are inferred from the claim text.