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公开(公告)号：US11887799B2
公开(公告)日：2024-01-30
申请号：US17600859
申请日：2020-03-11
Applicant: LS ELECTRIC CO., LTD.
Inventor： Sang-Chul Lee , Kyu-Ho Lee , Seung-Pil Yang
CPC classification number: H01H73/18 , H01H9/342 , H01H2213/004
Abstract: An arc extinction apparatus according to an embodiment of the present disclosure comprises a chamber unit, a division unit, a filter unit, and a cover unit. A discharge port is formed in the chamber unit such that a fluid in the chamber unit is discharged to the outside. An insertion groove is provided on inner faces of the chamber unit that face each other. The division unit is coupled to the inside of the chamber unit. In addition, the division unit divides a path of the fluid discharged through the discharge port into multiple paths. The filter unit is disposed in the discharge port and filters out at least one predetermined material from the fluid passing through the discharge port. The cover unit comprises a plurality of exhaust pipes and is coupled to the discharge port from the outside of the filter unit.
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公开(公告)号：US20230187919A1
公开(公告)日：2023-06-15
申请号：US17548802
申请日：2021-12-13
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： James L. Lagree , Christopher M. Finen , Patrick Martinez Garcia , Xavier Ignacio Pacheco Paulino
CPC classification number: H02H1/0023 , H01H73/18
Abstract: Systems and methods for tripping open circuit interrupters based on the detection of an arc flash using an accessory arc flash detection module are disclosed. The housing of the arc flash detection module is structured to be installed within the frame of a circuit interrupter. The detection module communicates with light sensors structured to detect light from arc flash events, and includes a controller configured to communicate with an electronic trip unit of the circuit interrupter. In one embodiment, the detection module is configured to alert the electronic trip unit that light indicative of arc flash conditions has been detected such that the electronic trip unit can determine whether or not to initiate a trip after determining the magnitude of current flowing through the circuit interrupter. In another embodiment, the detection module is configured to directly actuate a trip of the circuit interrupter based on the detection of light.
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公开(公告)号：US20230098632A1
公开(公告)日：2023-03-30
申请号：US18062788
申请日：2022-12-07
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Chunpeng GU , Hongjiang DONG , Yan JI , Guangming HUANG , Taixian CHEN , Fugao ZHAO
Abstract: A direct current contactor includes a case and two groups of contact components disposed in the case. Each group of contact components includes two moving contacts connected to each other and two fixed contacts. The direct current contactor further includes a drive system configured to drive the moving contacts to move in a direction close to or away from the fixed contacts, so that the moving contacts are connected to or disconnected from the fixed contacts. The case has an arc-extinguishing cavity. A first baffle in the arc-extinguishing cavity divides the arc-extinguishing cavity into a first arc-extinguishing chamber and a second arc-extinguishing chamber. The contact components are respectively located in the first arc-extinguishing chamber and the second arc-extinguishing chamber. In other words, the two groups of contact components are integrated into two arc-extinguishing chambers of one arc-extinguishing cavity and perform connection/disconnection drive by using a single drive system.
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公开(公告)号：US11443911B2
公开(公告)日：2022-09-13
申请号：US16772556
申请日：2018-11-22
Applicant: LS ELECTRIC CO., LTD.
Inventor： Kyunghwan Oh , Kihwan Oh
Abstract: The present device was conceived in order to resolve the aforementioned problem, and the objective thereof is to provide an arc chamber of a circuit breaker that enhances assemblability and ensures the consistency of the product. An arc chamber of the circuit breaker according to one embodiment of the present device comprises: a plurality of grids arranged at predetermined intervals outside a motion locus of a movable contactor and having a body portion and a leg portion extending from one side of the body portion; and a fixing cap having a receiving portion that is inserted into the leg portion in a press-fitting manner, wherein the fixing cap has a coupling portion extending to a side of the body portion at one side thereof.
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公开(公告)号：US11270858B2
公开(公告)日：2022-03-08
申请号：US17052115
申请日：2019-04-19
Applicant: PACIFIC ENGINEERING CORPORATION
Inventor： Takenao Nakatani , Yusuke Kondo
Abstract: An electric circuit breaker that prevents damage due to increased internal pressure after an electric circuit is cut off and prevents an arc from leaking to the outside. Such a circuit breaker includes a housing, a cut portion that is arranged in the housing and forms a part of an electric circuit, a cutting member that cuts the cut portion, and a power source arranged on a first end portion side of the housing, the electric circuit breaker including a moving body including the cutting member, in which the housing includes a cylindrical portion capable of moving the moving body between the first end portion and a second end portion on a side opposite to the first end portion, in which the moving body is configured such that the cutting member provided in the moving body cuts a separation piece of the cut portion.
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Patent Agency Ranking
公开(公告)号：US11189438B2
公开(公告)日：2021-11-30
申请号：US16493474
申请日：2018-03-06
Applicant: SONY CORPORATION
Inventor： Tadashi Morita
Abstract: Provided is an arc suppression device including one or more current-limiting circuits provided in parallel with a circuit breaker that switches between feeding and shutoff of power from a power supply. The current-limiting circuit shuts off a current from the power supply when the power from the power supply is fed to a load through a circuit breaker. The current from the power supply is shut off when a voltage generated by a potential difference between contacts of the circuit breaker becomes a predetermined voltage or higher in a case where feeding of the power from the power supply to the load is shut off by the circuit breaker. The potential difference is generated upon shutoff.
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7.发明授权公开(公告)号：US10483068B1
公开(公告)日：2019-11-19
申请号：US16216121
申请日：2018-12-11
Applicant: Eaton Intelligent Power Limited
Inventor： Deepshikha Sinha , Amol Bhagat , Mahesh Balakrishna Varrier , Pravin Kulkarni , Richard Malingowski , Xin Zhou
Abstract: Circuit breakers are configured with line terminal geometry that drives the current from a terminal input in a direction that can reduce electromagnetic forces and that can also or alternatively include an arc chute assembly that can reduce repulsive electromagnetic forces to improve the operating level of withstand current (Icw).
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公开(公告)号：US10453628B2
公开(公告)日：2019-10-22
申请号：US15780178
申请日：2016-07-07
Inventor： Xiaobin Guo , Haiyan Huang , Dejin Du , Yuanfeng Li
Abstract: The present invention discloses an opposite arc isolation device of a high voltage direct current relay, including a movable contact assembly and a fixed contact assembly, wherein the movable contact assembly includes a movable spring plate and a left movable contact and a right movable contact fixed at left and right ends of the movable spring plate; the fixed contact assembly includes a left fixed contact corresponding to the left movable contact and a right fixed contact corresponding to the right movable contact; an arc isolation member made of insulating material is provided between the left movable contact and the right fixed contact; the front-to-rear dimension L of the arc isolation member is greater than the front-to-rear width M of a joint surface of the movable contacts with the fixed contacts; and, the arc isolation member has a height H that enables the isolation of opposite arcs between the two sets of movable and fixed contacts.
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公开(公告)号：US10354813B2
公开(公告)日：2019-07-16
申请号：US15946347
申请日：2018-04-05
Applicant: LSIS CO., LTD.
Inventor： Kyu-Ho Lee
Abstract: One or more arc gas outlet holes are formed in a trip device such that an effect of easily venting an arc gas, which flows into the trip device, to the outside through the arc gas outlet holes is provided.
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公开(公告)号：US20180358188A1
公开(公告)日：2018-12-13
申请号：US15780178
申请日：2016-07-07
Inventor： XIAOBIN GUO , HAIYAN HUANG , DEJIN DU , YUANFENG LI
CPC classification number: H01H9/32 , H01H33/06 , H01H50/546 , H01H51/065 , H01H73/18
Abstract: The present invention discloses an opposite arc isolation device of a high voltage direct current relay, including a movable contact assembly and a fixed contact assembly, wherein the movable contact assembly includes a movable spring plate and a left movable contact and a right movable contact fixed at left and right ends of the movable spring plate; the fixed contact assembly includes a left fixed contact corresponding to the left movable contact and a right fixed contact corresponding to the right movable contact; an arc isolation member made of insulating material is provided between the left movable contact and the right fixed contact; the front-to-rear dimension L of the arc isolation member is greater than the front-to-rear width M of a joint surface of the movable contacts with the fixed contacts; and, the arc isolation member has a height H that enables the isolation of opposite arcs between the two sets of movable and fixed contacts.
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