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公开(公告)号：US12062509B2
公开(公告)日：2024-08-13
申请号：US17638702
申请日：2020-04-07
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jinhee Park , Jungwoo Yoo
CPC classification number: H01H33/182 , H01H33/53
Abstract: An arc path forming unit and a direct current relay including same are illustrated. The arc path forming unit according to an embodiment of the present invention comprises multiple magnets. Each of the magnets is configured to form a magnetic field at a point where each stationary contact is located. Each of the magnets located adjacent to each stationary contact is configured such that the opposite surfaces thereof have different polarities. A current flowing through a stationary contact and a movable contact and a magnetic field formed by each of the magnets generate an electromagnetic force. The electromagnetic force travels in a direction away from the center of the direct current relay. Therefore, a generated arc travels in the direction of the electromagnetic force and is thus moved in a direction away from the center of the direct current relay. Accordingly, the direct current relay can be prevented from being damaged.
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Patent Agency Ranking
公开(公告)号：US11978604B2
公开(公告)日：2024-05-07
申请号：US17639061
申请日：2020-04-07
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jinhee Park , Jungwoo Yoo
Abstract: Disclosed are an arc path forming unit and a direct current relay comprising same. The arc path forming unit according to an embodiment of the present disclosure comprises a single magnet unit disposed on one side of a magnet frame, and a plurality of magnet units disposed on another side opposite to the one side. The plurality of magnet units are sequentially arranged in the longitudinal direction. One side of a magnet unit positioned between at least two of the plurality of magnet units and facing the single magnet unit is magnetized with the same polarity as that of one side of the single magnet unit facing the magnet unit. As such, magnetic fields in the direction of exerting repulsive forces on each other are formed in the central portion of the direct current relay. Accordingly, since the arc does not move to the central portion, damage to components disposed in the central portion can be prevented.
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公开(公告)号：US11842870B2
公开(公告)日：2023-12-12
申请号：US17639099
申请日：2020-04-07
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jinhee Park , Jungwoo Yoo
IPC: H01H50/38
CPC classification number: H01H50/38
Abstract: Disclosed are an arc path formation unit and a direct current relay including same. An arc path formation unit according to an embodiment of the present disclosure comprises a plurality of magnet parts. One of the plurality of magnet parts is disposed on one surface of a magnet frame. The remaining magnet parts among the plurality of magnet parts are disposed on the other respective surfaces of the magnet frame. The magnet part disposed on the one surface is formed longer than the other magnet parts. Also, the magnet parts disposed on the other surface are spaced apart from each other as far as possible. Accordingly, the magnetic field formed between the magnet parts is formed such that the electromagnetic force generated in each of stationary contacts is generated in a direction away from the central region. As a result, damage to components disposed in the central region can be prevented.
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公开(公告)号：US11776782B2
公开(公告)日：2023-10-03
申请号：US17639127
申请日：2020-04-07
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jinhee Park , Jungwoo Yoo
Abstract: Disclosed are an arc path forming unit and a direct current relay comprising same. The arc path forming unit, according to one embodiment of the disclosure, comprises a plurality of magnet units disposed adjacent to each of fixed contacts. At least one of the plurality of magnet units disposed adjacent to each fixed contact is configured so that the side thereof facing the rest of the magnet units has a different polarity. Accordingly, an arc path is formed from each fixed contact in different directions from each other. Further, the arc path is formed so as to move away from the center part of the arc path forming unit. Accordingly, damage to components disposed in the center part may be prevented.
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公开(公告)号：US11804348B2
公开(公告)日：2023-10-31
申请号：US17638706
申请日：2020-04-07
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jinhee Park , Jungwoo Yoo
Abstract: Disclosed are an arc path formation unit and a direct current relay including same. An arc path formation unit according to an embodiment of the present disclosure comprises a plurality of magnet parts. The magnet parts, positioned adjacent to respective stationary contacts, are configured such that surfaces facing each other have different polarities. Also, some of the plurality of magnet parts are disposed at an incline relative to other magnet parts. Thus, magnetic field is formed by the plurality of magnet parts to obliquely pass by each of the stationary contacts. The electromagnetic force generated by the magnetic field is imparted in a direction away from the central region of a direct current relay. Accordingly, the generated arc moves in a direction away from the central region of the direct current relay, and thus damage to the direct current relay can be prevented.
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公开(公告)号：US11784018B2
公开(公告)日：2023-10-10
申请号：US17639090
申请日：2020-04-07
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jinhee Park , Jungwoo Yoo
Abstract: Shown are an arc path formation unit and a direct current relay including same. The arc path formation unit according to an embodiment of the present disclosure includes a plurality of magnet parts. The magnet parts form a magnetic field at the point at which each fixed contact is positioned. Each magnet part positioned adjacent to each fixed contact is formed so that opposite surfaces thereof facing each other have different polarities. An electric current flowing through the fixed contact and a movable contact, and the magnetic field generated by each magnet part form an electromagnetic force. The electromagnetic force moves away from the center of the direct current relay. Therefore, the generated arc moves in the direction of the electromagnetic force so as to move away from the center of the direct current relay. Thus, damage to the direct current relay can be prevented.
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