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公开(公告)号：US12106923B2
公开(公告)日：2024-10-01
申请号：US17756945
申请日：2020-04-09
Applicant: LS ELECTRIC CO., LTD.
Inventor： Kyeonghun Jang , Minseok Kim , Deokyong Yun
CPC classification number: H01H9/34 , H01H50/14 , H01H50/60 , H01H2009/347
Abstract: An arc box and an electromagnetic contactor comprising same are disclosed. The arc box according to an embodiment of the present disclosure comprises a coupling protrusion. The coupling protrusion is inserted into and coupled to a grid coupling hole of an arc chamber. Therefore, the arc chamber can be stably coupled to the arc box. In one embodiment, the coupling can be performed through snap fastening. Therefore, the arc chamber and the arc box can be easily coupled. A rib part is formed on the arc box. The rib part is positioned to be adjacent to the coupled arc chamber so as to prevent pitching of the arc chamber. Therefore, the arc chamber coupled to the arc box can stably maintain a stopping state.
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242.发明公开公开(公告)号：US20240312752A1
公开(公告)日：2024-09-19
申请号：US18575615
申请日：2022-05-20
Applicant: LS ELECTRIC CO., LTD.
Inventor： Woonghyeob SONG , Dongjin YUN , Sunghee KANG
IPC: H01H85/046 , H01H85/02 , H01H85/041
CPC classification number: H01H85/046 , H01H85/0411 , H01H2085/0283
Abstract: The present disclosure relates to an overvoltage suppression unit provided in a semiconductor circuit breaker using a semiconductor switch for power, the overvoltage suppression unit comprising: an overvoltage suppression element unit disposed on a first surface of a printed circuit board and including at least one overvoltage suppression element; a pattern fuse connected to the overvoltage suppression element unit and patterned on the first surface of the printed circuit board; a first case forming a housing and covering the first surface of the printed circuit board on which the pattern fuse and the overvoltage suppression element unit are disposed; and a lead wire connected to the pattern fuse, wherein the lead wire is formed so as to connect the first surface of the printed circuit board and a second surface of the printed circuit board.
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公开(公告)号：US20240312745A1
公开(公告)日：2024-09-19
申请号：US18576954
申请日：2022-11-14
Applicant: LS ELECTRIC CO., LTD.
Inventor： Ha Su KIM , Jin Hee PARK , Young Jun SON
Abstract: The present disclosure discloses an arc path formation unit and a direct current relay including the same, which can effectively guide a generated arc to the outside, including a magnet holder unit disposed between the outside of an arc chamber and the inside of a frame and including a first holder and a second holder different from each other, and a magnet unit attached to one surface of the magnet holder unit facing the arc chamber and forming a magnetic field in the arc chamber, wherein the first holder and the second holder are each bent at a predetermined angle and extended, the magnet unit is attached to both ends thereof, and a magnetic field formed in the magnet unit forms an electromagnetic force together with the electric current energizing through the direct current relay to guide the arc in a direction away from a fixed contact.
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公开(公告)号：US12094625B2
公开(公告)日：2024-09-17
申请号：US17763519
申请日：2020-09-23
Applicant: LS ELECTRIC CO., LTD.
Inventor： Min-Jee Kim , Gyeong-Ho Lee
CPC classification number: H01B12/16 , F25D19/006
Abstract: Disclosed is an disclosure pertaining to a cooling apparatus for a superconductor cooling container. The disclosed cooling apparatus for a superconductor cooling container comprises: an inner container which is disposed in an outer container and in which a superconductor is immersed in a liquid refrigerant; a refrigerator disposed outside the outer container to generate cold air; and a cryogenic maintenance device which is connected to the refrigerator and maintains the inside of the inner container in a cryogenic state.
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公开(公告)号：US20240298428A1
公开(公告)日：2024-09-05
申请号：US18273931
申请日：2021-12-15
Applicant: LS ELECTRIC CO., LTD.
Inventor： Seong Eon KIM
IPC: H05K7/20
CPC classification number: H05K7/20927 , H05K7/20254
Abstract: The present disclosure relates to a heat sink for an electric machine and, more specifically, to a heat sink for an electric semiconductor element used in an electric module, and the present invention is characterized by; comprising a cooling plate having an inlet and an outlet; having a tank which is formed in a plate shape inside the cooling plate and forms a coolant flow path connected to the inlet and the outlet, and having multiple collision pillars continuing from the top surface to the base surface of the tank formed in the tank.
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Patent Agency Ranking
公开(公告)号：US12068125B2
公开(公告)日：2024-08-20
申请号：US17923159
申请日：2021-03-29
Applicant: LS ELECTRIC CO., LTD.
Inventor： Woonghyeob Song , Jungwook Sim
CPC classification number: H01H9/20 , H01H9/0264 , H01H9/541 , H01H71/0214 , H01H71/10
Abstract: The present disclosure relates to a semiconductor circuit breaker, and more specifically, to a semiconductor circuit breaker provided with a detachable interface module. The semiconductor circuit breaker, according to one embodiment of the present disclosure, comprises: a circuit breaker main body connected to a main circuit and provided with a module receiving unit on the outer surface thereof; and an interface module provided independently from the circuit breaker main body and detachably coupled to the module receiving unit. The circuit breaker main body comprises: a terminal cover rotatably coupled to a terminal unit of the circuit breaker main body; and an interlock member provided to the circuit breaker main body and restricting or releasing the opening of the terminal cover. The interface module comprises an interlock driving unit for operating the interlock member.
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公开(公告)号：US20240222050A1
公开(公告)日：2024-07-04
申请号：US18288330
申请日：2022-04-22
Applicant: LS ELECTRIC CO., LTD.
Inventor： Seung Pil YANG
Abstract: Disclosed are an arc extinguishing unit and an air circuit breaker comprising the same. An arc extinguishing unit according to an embodiment of the present disclosure includes a gassing material that generates molecules that extinguish an arc when heat generated by the arc is applied. Accordingly, the arc can be extinguished quickly. In addition, the arc extinguishing unit includes an outer support plate made of glass fiber and has a mechanically and thermally strong side plate part, so that burnout due to arc heat can be prevented.
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公开(公告)号：US20240195156A1
公开(公告)日：2024-06-13
申请号：US18287321
申请日：2021-11-25
Applicant: LS ELECTRIC CO., LTD.
Inventor： Han Young KANG , Bong Jun SONG , Yo Hwan KIM , Seog Won LEE
Abstract: A switchboard having a cooling unit is provided. The switchboard having the cooling unit according to an embodiment of the present disclosure may include a housing having an inner space, an air inlet formed at one side thereof, and an air outlet formed at the other side thereof; a heat source disposed at one side of the inner space; a cooling unit for introducing an external air through the air inlet to the inside of the housing and discharging an air of the inner space through the air outlet to the outside of the housing; and a support plate disposed in the inner space and coupled to the cooling unit to allow the cooling unit to enter and exit the inner space.
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公开(公告)号：US20240186082A1
公开(公告)日：2024-06-06
申请号：US18284773
申请日：2022-03-24
Applicant: LS ELECTRIC CO., LTD.
Inventor： Kyu Ho LEE , Yong Ik PARK
Abstract: An air circuit breaker is disclosed. An air circuit breaker according to one aspect of the present disclosure includes a cradle and a circuit breaker main body drawn-in and drawn-out to/from the cradle; and further includes: an interlock lever connected to an off button of the circuit breaker main body to move vertically; and a transfer device unit provided on the lower side of the cradle, wherein the transfer device unit can include a key interlock assembly, which is provided to be horizontally movable so that, in a state of having moved toward one side thereof, the movement of the interlock lever is restricted and, in a state of having moved toward the other side thereof, the movement of the interlock lever is permitted.
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公开(公告)号：US12001185B2
公开(公告)日：2024-06-04
申请号：US17603850
申请日：2020-03-27
Applicant: LS ELECTRIC CO., LTD.
Inventor： Chang-Woo Park
IPC: G05B19/05 , G05B19/048
CPC classification number: G05B19/054 , G05B19/048 , G05B2219/1105
Abstract: Disclosed are a PLC system, and a method for controlling an input/output refresh period thereof. A PLC system according to an embodiment of the present disclosure comprises: a memory for storing an integrated operation program in which an input/output refresh run command is added and compiled through a program supporter; and a central processing unit which sequentially performs arithmetical processing of a plurality of control programs included in the integrated operation program, to control an operation of a plurality of expansion modules, wherein when arithmetical processing of at least one control program among the plurality of control programs has been completed, the central processing unit outputs processing result data of the at least one control program for which arithmetical processing has been completed, according to an input/output refresh run command which is additionally input.
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