公开(公告)号：US12300454B2

公开(公告)日：2025-05-13

申请号：US18020553

申请日：2021-03-10

Applicant: LS ELECTRIC CO., LTD.

Inventor： Byoungchul Kim

IPC: H01H71/02 ,  H01H33/666 ,  H01H71/08

Abstract: The present disclosure relates to a circuit breaker having a main circuit unit cover and, more particularly, to a circuit breaker having a removable main circuit unit cover so as to be applicable to a change in rated capacity. A circuit breaker according to one embodiment of the present disclosure comprises: a main circuit unit connected to a power source and a load; a main circuit unit cover which insulatively covers the rear surface of the main circuit unit; a main circuit unit terminal connected to the main circuit unit and exposed to the outside through the main circuit unit cover; and a terminal protection member detachably coupled to the main circuit unit cover and insulatively covering the main circuit unit terminal.

公开(公告)号：US20250151229A1

公开(公告)日：2025-05-08

申请号：US18835897

申请日：2023-01-20

Applicant: LS ELECTRIC CO., LTD.

Inventor： Kyu Hwa KIM

IPC: H05K7/20

Abstract: Disclosed are a fluid channel module and a power device including same. A fluid channel module according to an aspect of the present disclosure may include: a fluid channel division member communicating with a space of a housing to allow a fluid flowing in the space to be introduced thereinto; a duct member which is coupled to the fluid channel division member and communicates with the fluid channel division member to allow the fluid to flow therethrough; and a vortex formation member which is coupled to the duct member and communicates with the duct member to allow the fluid to flow therethrough, wherein the vortex formation member includes a vortex protrusion formed on the inner surface of the end in the extension direction thereof and configured such that the fluid is discharged while forming a vortex.

公开(公告)号：US20250149274A1

公开(公告)日：2025-05-08

申请号：US18835126

申请日：2023-01-12

Applicant: LS ELECTRIC CO., LTD.

Inventor： Hanbaek CHUNG

IPC: H01H33/08

Abstract: An air circuit breaker is disclosed. The air circuit breaker, according to an aspect of the present disclosure, may comprise: an operation unit in which an arc is generated by operating a mover with respect to a stator; an arc extinguishing unit installed on an upper portion of the operation unit and primarily extinguishing the arc; and an insulation member installed on one side of the arc extinguishing unit and blocking a moving space of high temperature gas between the arc extinguishing unit and a terminal to prevent the high temperature gas generated in the arc extinguishing unit from moving toward the terminal. According to this configuration, the insulation member may insulate an arc moving from the arc extinguishing unit to the terminal.

公开(公告)号：USD1073631S1

公开(公告)日：2025-05-06

申请号：US29900889

申请日：2023-08-25

Applicant: LS ELECTRIC CO., LTD. ,  LS ELECTRIC (Lishui) CO., LTD.

Designer： Minho Choi

公开(公告)号：US20250130658A1

公开(公告)日：2025-04-24

申请号：US18725941

申请日：2023-04-24

Applicant: LS ELECTRIC CO., LTD.

Inventor： Sang Oh JOO

IPC: G06F3/041

Abstract: The present disclosure relates to a display device which may comprise: a main frame for fixing a touchscreen panel and a display part; a cover part coupled to the rear side of the main frame so as to seal the rear side of the touchscreen panel and the display part, and enabling cable of the touchscreen panel and the display part to be exposed to the outside while maintaining the sealed state; and a controller coupled to a portion of the rear of the cover part and connected to the cable.

公开(公告)号：US20250130114A1

公开(公告)日：2025-04-24

申请号：US18682385

申请日：2022-09-28

Applicant: LS ELECTRIC CO., LTD.

Inventor： Hyun Wook LEE ,  Min Kyu SEO ,  Ki Hyeon KIM

IPC: G01K1/08

Abstract: A sensor device is disclosed. The sensor device according to an aspect of the present disclosure may comprise: a housing within which a space is formed; a sensor module which is movably coupled to the housing and is exposed at one end thereof to the outside and configured to sense information on the state of an external member; and an electrically conducting part which is accommodated in the space of the housing and is in electrical communication with the sensor module to receive the detected information transferred from the sensor module and supply power to the sensor module therethrough, wherein the sensor module includes: a body part which is exposed to the outside; and an elastic member which is coupled to the body part and presses the body part toward the external member.

公开(公告)号：US20250128273A1

公开(公告)日：2025-04-24

申请号：US18682371

申请日：2022-09-28

Applicant: LS ELECTRIC CO., LTD.

Inventor： Min Soo SON ,  Seung Pil YANG

IPC: B04C3/04 ,  B04C9/00 ,  H05K7/20

Abstract: Disclosed are a fluid purification apparatus and a power device comprising the same. The fluid purification apparatus comprises a frame portion having a space formed therein; a cover portion covering the space and coupled to the frame portion; and purification modules each of which passes through the frame and cover portion, and communicates with the outside and the space, wherein each purification module comprises a body portion forming a part of the exterior and having an inner portion that communicates with the outside and the space to form a flow path through which a fluid from the outside flows; and a vortex formation member accommodated in the body portion and provided to turn the fluid flow from the outside into the body portion into a vortex. Thus, dust mixed in the fluid from the outside can be centrifuged from the fluid while flowing in the vortex in the body portion.

公开(公告)号：US12283879B2

公开(公告)日：2025-04-22

申请号：US18035474

申请日：2021-11-03

Applicant: LS ELECTRIC CO., LTD.

Inventor： Paul Han

IPC: H02M1/34 ,  H01R4/64 ,  H01R4/66 ,  H02M7/00

Abstract: A short circuit regulating device and a modular multi-level converter comprising the same are disclosed. The short circuit regulating device according to each embodiment of the present disclosure includes an energization block energizably connected to the capacitor assembly and a shorting block contacting or spaced apart from the energization block. Each face of the energization block and the shorting block facing each other is in contact with each other or separated from each other.
The shorting block is coupled to the support portion. A cam member is rotatably coupled to the support portion, and an elastic member elastically supports the energization block and the shorting block. Therefore, contact and separation between the energization block and the shorting block can be performed by rotation of the cam member.

公开(公告)号：US20250125735A1

公开(公告)日：2025-04-17

申请号：US18726032

申请日：2023-02-16

Applicant: LS ELECTRIC CO., LTD.

Inventor： Sun Ho BAE ,  Jae Ho LEE

IPC: H02M3/335 ,  H02M1/00

Abstract: A DC-DC converter according to an embodiment of the present disclosure comprises: a first stage converter for stepping up or stepping down an input voltage and outputting same; and a second stage converter connected to an output of the first stage converter. The first stage converter may comprise: first to fourth switches connected in series; fifth to eighth switches connected in series; a first capacitor connected in parallel with the series connection of the first and second switches; a second capacitor connected in parallel with the series connection of the third and fourth switches; a third capacitor connected in parallel with the series connection of the fifth and sixth switches; a fourth capacitor connected in parallel with the series connection of the seventh and eighth switches; a first inductor electrically connected to a first node between the first and second switches and a second node between the fifth and sixth switches; and a second inductor electrically connected to a third node between the third and fourth switches and a fourth node between the seventh and eighth switches.

公开(公告)号：US20250118516A1

公开(公告)日：2025-04-10

申请号：US18835134

申请日：2023-03-16

Applicant: LS ELECTRIC CO., LTD.

Inventor： Hyungeun CHO

IPC: H01H71/02 ,  H01H71/16 ,  H01H83/20

Abstract: The present disclosure relates to a manual motor starter and, more specifically, to a trip device for a manual motor starter. A trip device for a manual motor starter according to an embodiment of the present disclosure comprises: a trip unit body forming the base of a trip unit; a fixed contact coupled to the lower portion of the trip unit body; a heater assembly inserted and coupled to the trip unit body and detecting the heat variation; a coil coupled to the upper portion of the trip unit body; a core unit inserted into the coil; a terminal rod coupled to the core unit and the trip unit body, and having one end portion forming a terminal unit; and an instant trip lever which is rotatably coupled to the trip unit body and is operated by the core unit, wherein a coil attachment portion in which the coil is inserted and installed protrudes from the trip unit body.