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公开(公告)号：EP4336534A1
公开(公告)日：2024-03-13
申请号：EP22799035.5
申请日：2022-04-22
发明人： KIM, Il Hyun
摘要： Disclosed are an arc extinguishing unit and an air circuit breaker comprising the same. An arc extinguishing unit according to an embodiment of the present invention provides: side plates spaced apart from each other and disposed to face each other; a plurality of grids disposed between the side plates, spaced apart from each other, and coupled to the side plates, respectively; a magnet unit forming a magnetic field for changing a path of an arc formed between a fixed contact and a movable contact disposed to be spaced apart from the fixed contact, and disposed adjacent to the outermost grid adjacent to the fixed contact among the plurality of grids.
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公开(公告)号：EP4339981A1
公开(公告)日：2024-03-20
申请号：EP22807680.8
申请日：2022-04-29
发明人： LEE, Kyu Ho , KIM, Il Hyun
摘要： Disclosed are an arc extinguishing unit, a circuit breaking unit, and an air circuit breaker including the same. The present invention provides an arc extinguishing unit, a circuit breaking unit, and an air circuit breaker, including: side plates spaced apart from each other and disposed to face each other; a plurality of grids disposed between the side plates, spaced apart from each other, and coupled to the side plates, respectively; and a grid cover located above the grid and covering the grid, wherein the grid includes a grid leg extending downward to surround from both sides a protruding contact disposed to extend upward from a movable contact; and a first protective part formed to surround at least a portion of the grid leg at a lower portion of the grid leg.
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公开(公告)号：EP4120303A2
公开(公告)日：2023-01-18
申请号：EP21767770.7
申请日：2021-03-03
发明人： KIM, Il Hyun
摘要： Disclosed are an arc extinguishing unit and an air circuit breaker comprising same. An arc extinguishing unit, according to an embodiment of the present invention, comprises an extinguishing magnet unit that forms a magnetic field inside the arc extinguishing unit. Accordingly, a generated arc receives an electromagnetic force in the direction facing the exterior of the air circuit breaker, and thus can be rapidly moved and extinguished. The extinguishing magnet unit is accommodated in a magnet case. The magnet case can seal the extinguishing magnet unit. Therefore, the extinguishing magnet unit is not damaged by the generated arc.
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公开(公告)号：EP4339983A1
公开(公告)日：2024-03-20
申请号：EP22807919.0
申请日：2022-04-29
发明人： KIM, Il Hyun
摘要： Disclosed are an arc extinguishing unit and an air circuit breaker comprising the same. The present invention provides an arc extinguishing unit, including: side plates spaced apart from each other and disposed to face each other; a plurality of grids disposed between the side plates, spaced apart from each other, and coupled to the side plates, respectively; and a grid cover located above the grid and covering the grid, wherein the grid includes a grid leg extending downward from both ends in the width direction so that an induced magnetic field can be formed by an arc generated when a fixed contact and a movable contact are spaced apart.
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公开(公告)号：EP4131313A1
公开(公告)日：2023-02-08
申请号：EP21781766.7
申请日：2021-03-03
发明人： KIM, Il Hyun
摘要： The present invention 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 at 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; and an arc guide whose one side is coupled to the side member and which is installed at a lower part of the plurality of grids, wherein the arc guide is made of a material having heat resistance, and a circuit breaker including the same.
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