公开(公告)号：US20220149705A1

公开(公告)日：2022-05-12

申请号：US17433279

申请日：2019-07-11

Applicant: LS ELECTRIC CO., LTD.

Inventor： Min Hun CHI ,  Chun Suk YANG

IPC: H02K11/33 ,  H05K5/00

Abstract: The present disclosure relates to a device for driving a motor, including a lower case having an accommodating space formed therein and an open upper side; an upper case closing an open surface of the lower case to form an inner space; a central case disposed in the lower case to partition an inner space formed by the lower case and the upper case; a first board disposed on the lower case and comprising a first connector; a second board disposed on the central case and comprising a second connector; and a connection board disposed in the inner space and comprising a first connection connector electrically connected to the first connector and a second connection connector electrically connected to the second connector to transmit electric signals between the board.

公开(公告)号：US20220148829A1

公开(公告)日：2022-05-12

申请号：US17602151

申请日：2020-03-09

Applicant: LS ELECTRIC CO., LTD.

Inventor： Yong-Jin CHOI

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

Abstract: The present disclosure relates to a motion sensing device for a vacuum circuit breaker and a vacuum circuit breaker comprising same. In the present disclosure, the motion sensing device for a vacuum circuit breaker is provided with a push rod assembly coupled to a movable electrode of a vacuum interrupter to elevate or lower the movable electrode, wherein the motion sensing device comprises: a sensor module spaced apart from the push rod assembly and arranged to face a side of a rod housing; and a sensing unit installed on a side of the push rod assembly and arranged to face the sensor module that senses the movement of the sensing unit.

公开(公告)号：US20220139651A1

公开(公告)日：2022-05-05

申请号：US17431785

申请日：2019-09-10

Applicant: LS ELECTRIC CO., LTD.

Inventor： Kwang-Hyeon AHN

IPC: H01H33/666 ,  G01D5/34

Abstract: The present disclosure relates to a motion sensing device for a vacuum circuit breaker and a vacuum circuit breaker comprising same. A motion sensing device for a vacuum circuit breaker, according to one embodiment of the present disclosure, comprises: a sensor module, installed adjacent to a main shaft, for sensing an operation state of the main shaft; and a bracket, coupled to the sensor module, for supporting the sensor module.

公开(公告)号：US20220115197A1

公开(公告)日：2022-04-14

申请号：US17431779

申请日：2019-09-10

Applicant: LS ELECTRIC CO., LTD.

Inventor： Min-Kyu SEO

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

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：US20210313133A1

公开(公告)日：2021-10-07

申请号：US17269476

申请日：2019-08-06

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jungwoo YOO

IPC: H01H50/56 ,  H01H50/44

Abstract: The present invention 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 invention 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.

公开(公告)号：US11005259B2

公开(公告)日：2021-05-11

申请号：US16959568

申请日：2018-12-19

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seong-Joon Lee

IPC: H02H7/22 ,  G01K1/02 ,  G01R19/00 ,  H02H1/00

Abstract: A monitoring and load controlling system for a switchboard, according to one embodiment of the present specification, comprises: a gateway which acquires respective temperature information of circuit breakers included in a switchboard, and respective current amount information of lines corresponding to the circuit breakers, acquires respective capacity information of the circuit breakers on the basis of the acquired temperature information, and, on the basis of the acquired capacity information and current amount information, detects a circuit breaker corresponding to a line in need of load regulation; and a load controlling device which regulates the load of said line by stopping the operation of at least one device among devices connected to the detected circuit breaker.

公开(公告)号：US20210090837A1

公开(公告)日：2021-03-25

申请号：US16954858

申请日：2018-12-11

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seongyeol CHO

IPC: H01H71/10 ,  H01H71/02

Abstract: The present invention relates to a trip device for a molded case circuit breaker and, more specifically, to an electronic trip device for a molded case circuit breaker. The electronic trip device for a molded case circuit breaker, according to one embodiment of the present invention, comprises: a trip part case having a plurality of phases; a trip part terminal provided at the rear surface part of the trip part case and provided for each phase; and a voltage sensing conductor coupled between the rear surface part and the trip part terminal and provided for each phase, wherein the voltage sensing conductor provided for each phase is formed to have the same shape and the same size.

公开(公告)号：US20200343850A1

公开(公告)日：2020-10-29

申请号：US16767938

申请日：2018-11-12

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seungpil YANG ,  Changsub WON

IPC: H02S10/40 ,  B63B35/44 ,  H02S30/10

Abstract: The present invention has been devised to solve the problem mentioned above and a purpose thereof is to provide a solar panel support having a buoyant body, which has excellent buoyancy retention, enables easy maintenance, and even during maintenance, can maintain maximum supportability. A solar panel support according to one aspect of the present invention comprises a buoyant body for supporting a solar panel, wherein the buoyant body comprises: a parent buoyant body including a coupling hole formed therethrough; and a child buoyant body detachably and fittedly inserted to the coupling hole.

公开(公告)号：US20250167661A1

公开(公告)日：2025-05-22

申请号：US18729778

申请日：2023-01-26

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jeong Woo LIM ,  Jung Wook SIM

IPC: H02M1/00 ,  H01F27/02 ,  H01F27/40 ,  H02M5/10 ,  H02M7/00 ,  H02M7/219

Abstract: A semiconductor transformer according to one embodiment of the present disclosure comprises a plurality of semiconductor transformer modules for transforming power, wherein each of the semiconductor transformer modules comprises: a high-voltage unit for transforming low-frequency AC power into high-frequency AC power; a transformation unit for transforming the transformed high-frequency AC power to high-frequency low-voltage AC power; and a low-voltage unit for transforming the transformed high-frequency low-voltage AC power to low-voltage DC power, the high-voltage unit is provided inside a housing made of a conductive material, and the housing has a ground line connected to one from among circuit lines of the high-voltage unit.

公开(公告)号：US20250157759A1

公开(公告)日：2025-05-15

申请号：US18837282

申请日：2023-02-02

Applicant: LS ELECTRIC CO., LTD.

Inventor： Kyu Ho LEE

IPC: H01H33/08

Abstract: Disclosed is an air circuit breaker having an arc cover, capable of preventing a secondary accident caused by arc generation. The air circuit breaker, according to one aspect of the present disclosure, may comprise: an operation unit in which arc is generated by the operation of a movable contact with respect to a stationary contact; an extinguishing unit which is installed on the upper part of the operation unit and primarily extinguishes the arc; and an arc cover which is installed on the upper part of the extinguishing unit, has a chamber formed, enabling the retention of high-temperature gas which has passed through the extinguishing unit, and has at least one or more guide panels partitioning the inside of the chamber into a plurality of sections and having an opening on one side, thereby enabling the high-temperature gas to flow along a flow path guided by the guide panels and be discharged through an outlet in a first direction.