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公开(公告)号：US20240047163A1
公开(公告)日：2024-02-08
申请号：US18286308
申请日：2022-04-25
Applicant: LS ELECTRIC CO., LTD.
Inventor： Yong Ik PARK
IPC: H01H73/18 , H01H33/664
CPC classification number: H01H73/18 , H01H33/664 , H01H71/08
Abstract: Disclosed are a circuit breaking unit and an air circuit breaker including the same. The present disclosure provides a circuit breaking unit, including a fixed contact; a movable contact that is in contact with or spaced apart from the fixed contact; a fixed contact terminal having the fixed contact disposed at a lower end thereof and extending upward; a movable contact terminal including the movable contact and configured such that the movable contact is formed to move in a direction toward the fixed contact or in a direction away from the fixed contact; a low runner disposed extending upward from the fixed contact, one end thereof coupled to the fixed contact terminal, and the other end thereof spaced apart from the fixed contact terminal; and a protruding contact disposed extending upward from the movable contact, energized when in contact with the low runner, and spaced apart from the low runner when the movable contact is tripped.
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公开(公告)号：US20240042459A1
公开(公告)日：2024-02-08
申请号：US18269458
申请日：2021-11-25
Applicant: LS ELECTRIC CO., LTD.
Inventor： Kyu Hwa KIM
Abstract: Provided is an inverter apparatus provided with a dust collecting unit. The inverter apparatus provided with the dust collecting unit according to an exemplary embodiment of the present disclosure comprises: a housing having an air inlet port formed on one surface and an air discharge port formed on the other surface; an electrical element for inverter, which is arranged in the housing; a first suction member arranged in the housing; and the dust collecting unit arranged on one side of the air inlet port.
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公开(公告)号：US11895784B2
公开(公告)日：2024-02-06
申请号：US17799516
申请日：2021-01-12
Applicant: LS ELECTRIC CO., LTD.
Inventor： Su Hyeong Lee , Soo Yong Hwang
CPC classification number: H05K5/0052 , H01H13/04 , H05K5/0018 , H01H13/023 , H05K2201/10106 , H05K2201/10121
Abstract: An electronic control device according to an embodiment of the present disclosure comprises a lower cover including a side wall with a first coupling portion and a second coupling portion; a circuit board arranged inside the side wall of the lower cover and having on the upper surface thereof a button; a middle cover provided with a third coupling portion coupled to the first coupling portion and a first button hole, and coupled to the lower cover by coupling of the third coupling portion to the first coupling portion; a button cover arranged on the upper surface of the middle cover, covering the first button hole, and having a protrusion portion; and an upper cover including a side wall provided with a fourth coupling portion coupled to the second coupling portion, the upper cover provided with a second button hole, and covering the button cover and the middle cover.
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公开(公告)号：US11892509B2
公开(公告)日：2024-02-06
申请号：US17602604
申请日：2020-03-24
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jae-Shik Yoon
IPC: G01R31/327 , H02H7/00
CPC classification number: G01R31/3278 , H02H7/008
Abstract: An example of the present disclosure provides a protective relay inspection device including: a connection unit connected to a protective relay; and an inspection unit which, upon receiving a relay setting-providing signal including relay setting information for the protective relay via the connection unit, processes an inspection of a relay function of the protective relay on the basis of the relay setting-providing signal. Here, the inspection unit includes: a plan generation unit which generates inspection plan information for an automatic inspection function on the basis of the relay setting-providing signal; and an inspection processing unit which inspects the relay function of the protective relay on the basis of the inspection plan information.
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公开(公告)号：US11870235B2
公开(公告)日：2024-01-09
申请号：US17043126
申请日：2019-01-14
Applicant: LS ELECTRIC CO., LTD.
Inventor： Ji-Ung Kim
CPC classification number: H02H1/06 , G01R1/20 , G01R19/2513 , H02H3/063
Abstract: Disclosed are a self-power relay and a method for preventing a malfunction thereof. The self-power relay comprises: a self-power generation unit for autonomously generating a driving power by performing conversion into a preconfigured driving power level by using, as a source power, a system power of a transmission/distribution line or power system; and a relay operation unit, for measuring the amount of a system power of a transmission/distribution line or power system, blocking a system power transmitted to a load when a failure occurs, and monitoring a change in a source power of the self-power generation unit in real time, so as to stop a relay operation of the self-power generation unit and a relay operation of the relay operation unit itself when abnormality occurs, wherein a malfunction can be prevented by checking an unstable state of a source current and voltage for generation of a self driving power.
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Patent Agency Ranking
公开(公告)号：US11804698B2
公开(公告)日：2023-10-31
申请号：US17756943
申请日：2020-04-01
Applicant: LS ELECTRIC CO., LTD.
Inventor： Han-Joo Lee , Hong-Ik Yang
Abstract: A switchboard is provided having a rotating shutter structure that comprises: a switchboard body that is provided with a circuit breaker chamber into which a circuit breaker is inserted, and an open hole formed in the rear surface to expose a conductor part of a bushing assembly to the circuit breaker chamber; a shutter part that is rotatably installed in the switchboard body and opens/closes the open hole by rotating; and an operation unit that is installed in the switchboard body and rotates the shutter part when the circuit breaker is inserted into the circuit breaker chamber.
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公开(公告)号：US11764020B2
公开(公告)日：2023-09-19
申请号：US17432743
申请日：2019-07-11
Applicant: LS ELECTRIC CO., LTD.
Inventor： Han Joo Lee , Hong Ik Yang , Kil Young Ahn
Abstract: A pole component (and circuit breakers including such a pole components) may be provided that include an upper terminal; a lower terminal disposed a predetermined distance away from the upper terminal; a breaker part assembly including a fixed electrode, which is electrically connected to the upper terminal, a movable electrode, which is selectively connected to the fixed electrode, and a current conducting portion which is fixed to the movable electrode and electrically connected to the lower terminal; an outer housing having an open lower surface and accommodating the upper terminal, lower terminal and breaker part assembly; and an inner housing which is detachably disposed between the outer housing and breaker part assembly.
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公开(公告)号：US20230223228A1
公开(公告)日：2023-07-13
申请号：US17923154
申请日：2021-03-29
Applicant: LS ELECTRIC CO., LTD.
Inventor： Woonghyeob SONG , Jungwook SIM
CPC classification number: H01H71/0207 , H02J50/10 , H01H9/54
Abstract: The present disclosure relates to a semiconductor circuit breaker and, more specifically, to a semiconductor circuit breaker having a detachable interface module. The semiconductor circuit breaker according to an embodiment of the present disclosure comprises: a circuit breaker body connected to a main circuit; and an interface module which is independent from the circuit breaker body, wherein the circuit breaker body comprises: a first reception part disposed on the outer surface of the circuit breaker body; and a blocking part including a power semiconductor device connected to the main circuit to block the main circuit when an overcurrent occurs, and the interface module comprises an operation part for controlling the blocking part, and is detachably coupled to the first reception part.
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公开(公告)号：US11695267B2
公开(公告)日：2023-07-04
申请号：US17757268
申请日：2020-11-09
Applicant: LS ELECTRIC CO., LTD.
Inventor： Sangtack Shin
CPC classification number: H02H7/042 , H01F27/402
Abstract: The present disclosure relates to a protective relay detecting disconnection in a circuit comprising a disconnection detection unit including a plurality of nodes connected to both ends of an output of a transformation unit, a reference voltage generation unit forming a reference voltage, and a plurality of resistors forming a voltage dividing resistor and connecting the plurality of nodes and the reference voltage generation unit; a sensing voltage generation unit applying a voltage for forming a predetermined voltage difference with respect to the reference voltage; and a disconnection determination unit connected to a first node, in which the magnitude of a voltage signal applied by the voltage dividing resistor varies depending on whether at least one of the transformation unit and the circuit connected to the transformation unit is disconnected, and detecting whether at least one of the transformation unit and the circuit connected to the transformation unit is disconnected.
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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.
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