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公开(公告)号：US20250104952A1
公开(公告)日：2025-03-27
申请号：US18727790
申请日：2023-01-02
Applicant: LS ELECTRIC CO., LTD.
Inventor： Younghwan KIM , Kihwan OH , Insu SEO , Kyunghwan OH , Jihyoung KIM , Jaesung LEE
IPC: H01H73/18
Abstract: The present disclosure relates to an arc extinguishing unit of a molded case circuit breaker and, more specifically to an arc extinguishing unit of a molded case circuit breaker, having improved arc elongation performance. The arc extinguishing unit of a molded case circuit breaker, according to one embodiment of the present disclosure, comprises: a first side plate and a second side plate arranged to be spaced a predetermined distance apart from each other; a plurality of grids arranged by predetermined intervals between the first side plate and the second side plate; and an insulation member arranged to adjoin each of the plurality of grids.
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公开(公告)号：US20250096757A1
公开(公告)日：2025-03-20
申请号：US18292100
申请日：2022-09-07
Applicant: LS ELECTRIC CO., LTD.
Inventor： Ju Beom SON
Abstract: The present disclosure relates to an analog output circuit and an inverter including the same. An analog output circuit according to an embodiment of the present invention is an analog output circuit of an electronic device, comprising an operational amplifier (Op-Amp) that amplifies the difference between a first input node connected to a line of an output voltage and a second input node connected to a line of an offset voltage, and outputs a bi-directional analog signal from an output node. The analog output circuit comprises: a first switch unit having one end connected to the first and second input nodes and the other end connected to the ground to switch between the one end and the other end; and a control unit that generates a control signal for controlling switching of the first switch unit.
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公开(公告)号：US12191096B2
公开(公告)日：2025-01-07
申请号：US17916747
申请日：2021-03-29
Applicant: LS ELECTRIC CO., LTD.
Inventor： Young Kim , Min-Kyu Seo
Abstract: The present disclosure relates to a power device monitoring system comprising: a cradle having a cradle terminal formed on the rear side thereof; a circuit breaker mechanically or electrically connected to or separated from the cradle terminal; at least one position detection means mounted inside the circuit breaker so as to detect the position of a circuit breaker body in real time; and a display unit for outputting the mobile characteristic of the circuit breaker body detected by the position detection means.
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公开(公告)号：US12176164B2
公开(公告)日：2024-12-24
申请号：US17797226
申请日：2021-01-27
Applicant: LS ELECTRIC CO., LTD.
Inventor： Min-Ho Jang
IPC: H01H9/20 , H01H33/46 , H01H33/666
Abstract: A plug interlock apparatus for a vacuum circuit breaker, comprising: a control power plug having a plug fixing member formed on each side thereof; a switchboard including a plurality of terminals; a control power connector from which the control power plug is detached; a plug latch formed on the sides of the control power connector and fixing the plug fixing members; a circuit breaker body which includes a connector rotation link which rotates in association with the plug latch, and a slide link having one end coupled to the connector rotation link, and which is detached from the terminal and supplied with voltage and current; and a transfer cart for reciprocating the circuit breaker body along a rail installed on the bottom surface of the switchboard, wherein a locking latch detached from a rail groove formed on the rail is formed at the other end of the slide link.
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公开(公告)号：US20240414078A1
公开(公告)日：2024-12-12
申请号：US18689736
申请日：2022-10-17
Applicant: LS ELECTRIC CO., LTD.
Inventor： Geon YOON
IPC: H04L45/02
Abstract: A communication device according to an embodiment of the present disclosure comprises: a communicator; and a processor configured to: if a network composed of a first topology including a star topology or a line topology is included on a communication path connecting the communication device and the other communication device, configure data to be transmitted to the other communication device through a first interface for accessing a RAPIEnet (Real-time Automation Protocol for Industrial Ethernet)-based upper layer and an Internet Protocol (IP)-based lower layer, and transmit the data to the other communication device through the communicator using the communication path.
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Patent Agency Ranking
公开(公告)号：US20240363297A1
公开(公告)日：2024-10-31
申请号：US18291893
申请日：2022-10-17
Applicant: LS ELECTRIC CO., LTD.
Inventor： Ha Su KIM , Jin Hee PARK
CPC classification number: H01H33/72 , H01H33/025 , H01H33/53
Abstract: A sub contact part and a direct current (DC) relay including the same are disclosed. The sub contact part according to one aspect of the present disclosure may include a body part having spaces spaced apart from each other therein and; and a plurality of sub connectors each accommodated in the spaces of the body part and electrically connected to an external control power source and a core part, wherein the body part includes a plurality of legs each having the spaces spaced apart from each other therein and extending in one direction; and a bridge extending between the plurality of legs and coupled to each of the plurality of legs.
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237.发明公开公开(公告)号：US20240353466A1
公开(公告)日：2024-10-24
申请号：US18683099
申请日：2022-10-12
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jaeshik YOON
CPC classification number: G01R31/1272 , G01R19/003 , G01R19/16576 , G01R27/025 , G01R31/2841 , G01R31/52
Abstract: An insulation monitoring device comprises a signal generation unit generating a measurement signal having a preset voltage and applying the measurement signal to the ground; a signal detection unit including a coupler resistor connected to a transmission line and a detection resistor provided between the coupler resistor and the other end of the signal generation unit, and detecting the voltage of the measurement signal distributed to the internal resistance of the insulation monitoring device according to the voltage difference across the detection resistor; and a control unit detecting a transient voltage, due to the charging and discharging of a system capacitor and generated by parasitic capacitance between the transmission line and ground, from the voltage detected by the signal detection unit, and checking the connection state of the insulation monitoring device to the transmission line and ground based on the result of detecting the transient voltage.
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公开(公告)号：US20240339816A1
公开(公告)日：2024-10-10
申请号：US18294464
申请日：2022-10-17
Applicant: LS ELECTRIC CO., LTD.
Inventor： Bumyoul KIM
Abstract: A smart distribution board according to an embodiment of the present disclosure comprises a module expansion device mounted on each of a plurality of modules and connecting the plurality of modules with each other, wherein the module expansion device comprises: a PCI slot for connecting the module of the plurality of modules, on which the module expansion device is mounted; and at least one expansion connector for connecting the module on which the module expansion device is mounted and at least another module.
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公开(公告)号：US20240339276A1
公开(公告)日：2024-10-10
申请号：US18682072
申请日：2022-11-14
Applicant: LS ELECTRIC CO., LTD.
Inventor： Ha Su KIM , Jin Hee PARK , Young Jun SON
CPC classification number: H01H50/38 , H01H9/443 , H01H50/546
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：US12110939B2
公开(公告)日：2024-10-08
申请号：US17802056
申请日：2021-01-12
Applicant: LS ELECTRIC CO., LTD.
Inventor： Kyung Min Kim
Abstract: Disclosed is an anti-vibration device. An anti-vibration device according to the embodiment of the present disclosure reduces vibration between an object and an installation surface on which the object is installed, and the anti-vibration device includes a first elastic member, a first support member disposed to cover the first elastic member and fastened to the first elastic member, a second elastic member disposed on an upper portion of the first support member, and a second support member disposed to cover the second elastic member and fastened to the first support member.
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