公开(公告)号：USD1022927S1

公开(公告)日：2024-04-16

申请号：US29843792

申请日：2022-06-23

Applicant: LS ELECTRIC CO., LTD.

Designer： Euihyun Cho

Abstract: FIG. 1 is a top, front, right-side perspective view of a remote terminal unit for switchboard showing the new design:
FIG. 2 is a top, rear, left-side perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation 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.

公开(公告)号：US20240087830A1

公开(公告)日：2024-03-14

申请号：US17767787

申请日：2020-04-09

Applicant: LS ELECTRIC CO., LTD.

Inventor： Kyeonghun JANG ,  Deokyong YUN ,  Minseok KIM

IPC: H01H73/18 ,  H01H73/04

CPC classification number: H01H73/18 ,  H01H73/04

Abstract: An electromagnetic contactor is disclosed. An electromagnetic contactor according to an embodiment of the present disclosure includes an arc extinguishing unit. The air extinguishing unit is configured to surround a position where a fixed contactor and a movable contactor are in contact with each other. Accordingly, an arc generated between the fixed contactor and the movable contactor can extend toward a grid without arbitrarily flowing in an inner space of the electromagnetic contactor. Further included is an arc box unit according to an embodiment of the present disclosure. An arc outlet is formed passing through the arc box unit. An arc that is extinguished while passing through the grid can be discharged to the outside of the electromagnetic contactor through the arc outlet. Accordingly, the arc can be extinguished and discharged quickly and effectively. As a result, components of the electromagnetic contactor are not damaged by the generated arc.

公开(公告)号：US20240079860A1

公开(公告)日：2024-03-07

申请号：US18272145

申请日：2021-11-25

Applicant: LS ELECTRIC CO., LTD.

Inventor： Han-Joo LEE ,  Hong-Ik YANG

IPC: H02B11/173 ,  H01H71/52

CPC classification number: H02B11/173 ,  H01H71/522

Abstract: One embodiment of a bogie apparatus may comprise: a horizontal frame; vertical frames respectively coupled to both ends of the horizontal frame and provided in a pair; an end bar having both end parts respectively coupled to one end of the pair of horizontal frames; and a connector assembly coupled to the end bar so as to move in at least one direction among upward, downward, left, and right directions. The connector assembly may comprise: a socket portion having a plurality of wiring terminals; a socket mounting portion having the socket portion mounted thereon, and provided in a plate shape; and a guide bushing formed so as to protrude from the socket mounting portion and away from the socket portion, and having a hollow.

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

IPC: H01H33/59 ,  H01H1/54 ,  H01H50/36 ,  H01H50/60

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.

公开(公告)号：US11913984B2

公开(公告)日：2024-02-27

申请号：US17442672

申请日：2019-07-19

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seung Wook Lee

IPC: G01R31/12 ,  H01F27/24 ,  H01F27/36 ,  H01F27/29

CPC classification number: G01R31/1227 ,  H01F27/24 ,  H01F27/29 ,  H01F27/36

Abstract: A device for testing insulation properties of a transformer may be provided by: a low-voltage winding part and a high-voltage winding part that are arranged concentrically with each other; an iron core for testing combined with the low-voltage winding part and the high-voltage winding part and adjustable in height according to the height of low-voltage winding part and the high-voltage winding part; a low-voltage terminal part connected to both ends of the winding of the low-voltage winding part; and a high-voltage terminal part connected to both ends of the winding of the high-voltage winding part.

公开(公告)号：US20240035904A1

公开(公告)日：2024-02-01

申请号：US18026719

申请日：2021-08-19

Applicant: LS ELECTRIC CO., LTD.

Inventor： Hyung Suk CHOI ,  Soo Hwan HAN

IPC: G01K11/324 ,  H01M10/48

CPC classification number: G01K11/324 ,  H01M10/486 ,  H01M50/204

Abstract: A temperature measurement device according to an embodiment of the present invention may be provided in an energy storage device having a plurality of power device modules. The temperature measurement device may comprise a plurality of sensing spots for temperature sensing, wherein the plurality of sensing spots may include: optical fiber cables spaced a regular unit distance apart from each other; and a plurality cable fixing units disposed between the plurality of power device modules to fix the optical fiber cables. The optical fiber cables may comprise: a plurality of inner sections which are placed between the plurality of power device modules and fixed to the cable fixing units; and at least one outer section which connects the plurality of inner sections in series to each other and has a larger length than the unit distance.

公开(公告)号：US11875956B2

公开(公告)日：2024-01-16

申请号：US17431779

申请日：2019-09-10

Applicant: LS ELECTRIC CO., LTD.

Inventor： Min-Kyu Seo

IPC: H01H33/662 ,  H01H33/664 ,  H01H33/666

CPC classification number: H01H33/6661 ,  H01H33/662 ,  H01H33/664

Abstract: The present disclosure provides a contact point monitoring device for a vacuum circuit breaker comprising: a fixed electrode which is fixed in an insulated container; a fixed contact point which is disposed at one end of the fixed electrode; a movable electrode which is installed in the insulated container and is movable in the upward or downward direction; a vacuum interrupter which is disposed at one end of the movable electrode and includes a movable contact point coming into contact with or separated from the fixed contact point; and a pushrod assembly which is coupled to the other end of the movable electrode and allows the movable electrode to move upwards or downwards.

公开(公告)号：US11875933B2

公开(公告)日：2024-01-16

申请号：US16962437

申请日：2018-12-18

Applicant: LS ELECTRIC CO., LTD.

Inventor： Ji-Hoon Ma

IPC: H01F38/30 ,  H01F27/02 ,  H02B13/035 ,  H01F27/36

CPC classification number: H01F38/30 ,  H01F27/02 ,  H01F27/363 ,  H02B13/0356

Abstract: A switchboard is provided via a terminal bushing; a switchboard terminal coupled to the terminal bushing; a metering transformer bushing which is installed or released from the front part thereof through a breaker chamber, covers the switchboard terminal, and is inserted into the terminal bushing; and a metering transformer which is fastened to the metering transformer bushing and disposed on the outer circumference of the metering transformer bushing. The metering transformer includes at least one terminal that faces forward, and the metering transformer bushing may include an opening for exposing the at least one terminal to the front thereof.

公开(公告)号：US20240006138A1

公开(公告)日：2024-01-04

申请号：US18035462

申请日：2021-11-02

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jung Woo YOO

IPC: H01H50/36 ,  H01H50/54

CPC classification number: H01H50/36 ,  H01H50/54

Abstract: Disclosed are a movable contact part and a direct current relay including same. The movable contact part comprises an upper yoke. The upper yoke generates a magnetic force that attenuates the electromagnetic repulsive force generated between a movable contact and a fixed contact.
The upper yoke includes a cover part covering the movable contact from above and an arm part connected to the cover part and covering the movable contact from both sides. The arm part is thinner than the cover part. A curved portion of the arm part is shorter than the cover part and an extension portion.
Thus, even though the total weight of the upper yoke is reduced, the area of the upper yoke is increased, and the thickness and length of a support part can be maintained. Consequently, the intensity of the magnetic force of the upper yoke can be enhanced.

公开(公告)号：US20230420923A1

公开(公告)日：2023-12-28

申请号：US18037261

申请日：2021-10-27

Applicant: LS ELECTRIC CO., LTD.

Inventor： Juhyung LEE

IPC: H02B11/28 ,  H02B11/127

CPC classification number: H02B11/28 ,  H02B11/127

Abstract: The present disclosure relates to a grounding device for a circuit breaker, and more specifically, to a circuit breaker having a grounding device which selectively operates according to a truck. The grounding device for a circuit breaker according to an aspect of the present invention comprises: a housing installed in a distribution box or an external box; and a fixed contactor fixed to a ground truck inserted into/withdrawn from the distribution box or the external box; a moving assembly rotatably installed in the housing; a movable contactor which is coupled to and moves together with the moving assembly, and of which one end is connected to ground and the other end is connected to or separated from the fixed contactor; and a stopper assembly which is rotatably installed in the housing and restricts or allows the operation of the moving assembly.