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公开(公告)号：USD988274S1
公开(公告)日：2023-06-06
申请号：US29806310
申请日：2021-09-02
Applicant: LS ELECTRIC CO., LTD.
Designer： Jungwoo Yoo , Youngho Lee , Hanmiru Kim
Abstract: FIG. 1 is a front and top perspective view of a relay for electric automobile showing the new design:
FIG. 2 is a front and bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left-side elevation view thereof;
FIG. 6 is a right-side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines in the drawings illustrate portions of the relay for electric automobile that form no part of the claimed design.-
公开(公告)号：US11915894B2
公开(公告)日：2024-02-27
申请号：US17268658
申请日：2019-08-13
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jungwoo Yoo
CPC classification number: H01H33/596 , H01H1/54 , H01H50/36 , H01H50/60 , H01H2235/01
Abstract: The present disclosure relates to a direct current relay having a mover assembly having improved contact pressure. In one embodiment, a direct current relay comprises a pair of fixed contactors and a movable contactor which is moved up and down by an actuator to come into contact with or be separated from the pair of fixed contactors, comprises: a mover support disposed below the movable contactor and connected to the actuator by a shaft; a mover holder disposed above the movable contactor and fixed to the mover support; an upper yoke and a lower yoke disposed above and below the movable contactor to generate an electromagnetic force, respectively; and a contact pressure spring disposed between the lower yoke and the mover support, wherein the upper yoke and the lower yoke form a magnetic path to offset an electron repulsive force generated between the fixed contactors and the movable contactor.
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公开(公告)号：US11735388B2
公开(公告)日：2023-08-22
申请号：US17269476
申请日：2019-08-06
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jungwoo Yoo
Abstract: The present disclosure relates to a direct current relay and, more particularly, to a direct current relay including a mover assembly having improved support force with respect to a movable contactor. The direct current relay according to an embodiment of the present disclosure comprises a pair of fixed contactors and a movable contactor which is moved up and down by an actuator to come into contact with or be separated from the pair of fixed contactors, comprises a mover support disposed below the movable contactor and connected to the actuator by a shaft; a mover holder disposed above the movable contactor and fixed to the mover support; a contact pressure spring disposed between the movable contactor and the mover support to provide a contact pressure to the movable contactor; and a supporting pin installed to extend through the movable contactor and the mover holder.
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公开(公告)号：US12205786B2
公开(公告)日：2025-01-21
申请号：US17612498
申请日：2019-08-20
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jungwoo Yoo
Abstract: A direct current relay is disclosed comprising a pin member and a support member. The support member allows a housing for receiving a movable contactor and an upper yoke for attenuating electromagnetic repulsive power to be coupled to each other. The pin member passes through and is coupled to the support member and the movable contactor to prevent the movable contactor from being unintendedly separated. The support member passes through and is coupled to the housing and the upper yoke, and then extends toward the radial outside by receiving applied pressure which faces the radial outside. The pin member passes through and is coupled to the support member, and then extends toward the radial outside when the pressure is released. Therefore, a separate fastening member for coupling the pin member and the support member to the housing, the upper yoke, the movable contactor, and the like is not required.
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公开(公告)号：US12119190B2
公开(公告)日：2024-10-15
申请号：US17612423
申请日：2019-08-20
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jungwoo Yoo
Abstract: A direct current relay is disclosed. A movable contact part provided on a direct current relay, according to an embodiment of the present disclosure, comprises a movable contact and a pin member that is through-coupled to the movable contact. The movable contact can be supported by the pin member and simultaneously move on a straight line along the pin member. Therefore, even when a physical force is applied to the movable contact, the movable contact does not arbitrarily separate therefrom. The pin member is coupled to a support member insertion-coupled to a housing and an upper yoke. The pin member is formed to have a diameter larger than that of a hollow formed in the support member. The pin member can be insertion-coupled to the support member. Therefore, arbitrary separation of the movable contact can be prevented even without a separate fastening member.
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Patent Agency Ranking
公开(公告)号：US11830694B2
公开(公告)日：2023-11-28
申请号：US17269476
申请日：2019-08-06
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jungwoo Yoo
Abstract: The present disclosure relates to a direct current relay and, more particularly, to a direct current relay including a mover assembly having improved support force with respect to a movable contactor. The direct current relay according to an embodiment of the present disclosure comprises a pair of fixed contactors and a movable contactor which is moved up and down by an actuator to come into contact with or be separated from the pair of fixed contactors, comprises a mover support disposed below the movable contactor and connected to the actuator by a shaft; a mover holder disposed above the movable contactor and fixed to the mover support; a contact pressure spring disposed between the movable contactor and the mover support to provide a contact pressure to the movable contactor; and a supporting pin installed to extend through the movable contactor and the mover holder.
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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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公开(公告)号：US11574784B2
公开(公告)日：2023-02-07
申请号：US17269213
申请日：2019-08-13
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jungwoo Yoo
Abstract: The present disclosure relates to a direct current relay, and more specifically, to a direct current relay having a movable assembly with improved contact pressure. The direct current relay according to an embodiment of the present disclosure comprises a pair of fixed contacts, and a movable contact which is moved vertically by an electromagnetic force to contact or be separated from the pair of fixed contacts, wherein an upper yoke and a lower yoke are respectively provided on the upper and lower portions of the movable contact, a contact spring is provided on the lower portion of the lower yoke, and the lower yoke is pressed by the contact spring to move the movable contact.
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公开(公告)号：US12249473B2
公开(公告)日：2025-03-11
申请号：US17612389
申请日：2019-08-20
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jungwoo Yoo
Abstract: Disclosed are a direct current relay and a manufacturing method therefor. A movable contact part provided in a direct current relay comprises a movable contact and a lower yoke positioned below the movable contact configured to attenuate an electromagnetic repulsive force generated by contact between the movable contact and a fixed contact. The movable contact is provided with a coupling protrusion portion that protrudes downward. The lower yoke is provided with a movable contact coupling portion into which the coupling protrusion portion is inserted. The coupling protrusion portion can receive pressure directed radially outward after being inserted into the movable contact coupling portion. The coupling protrusion portion is expanded radially outward by the pressure. Accordingly, the outer circumferential surface of the coupling protrusion portion can be inserted into and coupled to the inner circumferential surface of the lower yoke that forms the movable contact coupling portion.
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