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1. 发明公开

US20230368999A1 ELECTRICAL OVERLOAD PROTECTION DEVICE AND METHOD OF USE 审中-公开
公开(公告)号：US20230368999A1
公开(公告)日：2023-11-16
申请号：US17744190
申请日：2022-05-13
申请人： Lumi Legend Electrical Co. LTD
发明人： Xu Jie
IPC分类号： H01H71/58 , H01H71/04 , H01H71/50
CPC分类号： H01H71/58 , H01H71/04 , H01H71/501 , H01H2071/042
摘要： An electrical overload protection device for readily identifying and resetting a tripped circuit breaker includes a button, which is retained in depressed and extended configurations by a biaser. A first end and a second end of a plate spring are attached to the housing and the biaser, respectively. A bimetal strip, which is attached to and positioned in the housing, is reversibly deformable and thus bendable upon exposure to a specified current. Depressing the button contacts the biaser with the bimetal strip to complete an electrical circuit, which, should it exceed the specified current, bends the bimetal strip to actuate the plate spring to extend a shaft from the housing. The bending also disengages the biaser from the bimetal strip and breaks the electrical circuit. Depressing the shaft reverses deformation of the bimetal strip and reextends the button so it is again depressible to complete the electrical circuit.

2. 发明公开

US20230368997A1 OPERATING MECHANISM OF CIRCUIT BREAKER AND ASSEMBLING BREAKER 审中-公开
公开(公告)号：US20230368997A1
公开(公告)日：2023-11-16
申请号：US18248440
申请日：2022-03-31
申请人： Chint Low Voltage Electrical Technology Co., Ltd.
发明人： Denggui AO , Lijun YAN , Hao FU , Yongfu XU
IPC分类号： H01H69/00 , H01H71/54 , H01H71/50
CPC分类号： H01H69/00 , H01H71/54 , H01H71/505 , H01H2071/507
摘要： An operating mechanism of a circuit breaker, wherein two ends of a first spring are rotationally connected to a rocker arm assembly and a first crank through a first spring shaft and a second spring shaft respectively, and one end of a jump buckle is rotationally connected to a bracket and is a jump buckle pivoting end; a jump buckle hole of the jump buckle is aligned with a bracket hole of the bracket; the first spring shaft is in limiting fit with the jump buckle; and one end of the first crank swings in a direction away from the jump buckle pivoting end, such that a spacing between the first spring shaft and the second spring shaft is smaller than or equal to the length of the first spring, and a first assembly state is formed.

3. 发明授权

US11817276B2 Low voltage switching device 有权
公开(公告)号：US11817276B2
公开(公告)日：2023-11-14
申请号：US17049047
申请日：2019-04-17
申请人： ABB S.p.A.
发明人： Claudio Rocca , Mauro Ghislotti
IPC分类号： H01H71/50 , H01H1/20 , H01H21/30 , H01H1/14 , H01H21/50 , H01H71/20
CPC分类号： H01H21/30 , H01H1/14 , H01H1/2041 , H01H21/50 , H01H71/205
摘要： Described herein is a low voltage switching device including: one or more electric poles having one or more movable contacts and corresponding fixed contacts adapted to be coupled to or uncoupled from each other; a movable contact assembly including said movable contacts and a main supporting and operating shaft reversibly movable between a first contact position, at which said movable contacts and said fixed contacts are uncoupled, a second contact position, at which said movable contacts and said fixed contacts are coupled, and a third contact position, at which said movable contacts and said fixed contacts are coupled and kept pressed; an operating assembly including a handle mechanism having a handle adapted to be reversibly moved by a user or a motor operated actuator (MOE) between a first, open position and a second, closed position; and a driving assembly operatively connected to said operating assembly.

4. 发明申请

US20220020551A1 SPECIAL-PURPOSE GROUND FAULT CIRCUIT BREAKER 有权
公开(公告)号：US20220020551A1
公开(公告)日：2022-01-20
申请号：US17449668
申请日：2021-10-01
申请人： Jiangsu Barep intelligence Technology Co.,Ltd
发明人： Jiangang Chen , Xiaobo Zheng
IPC分类号： H01H71/50 , H01H71/02 , H02H3/16
摘要： The present disclosure discloses a special-purpose ground fault circuit breaker, belonging to the technical field of sockets, which comprises at least two conductors, a socket box, a testing mechanism, a reset mechanism and a grounding connector, wherein the at least two conductors are electrically isolated, the reset mechanism comprises a moving arm, the moving arm and a power input terminal form one of the conductors, a socket silver point forms the other conductor, and the socket silver point and the power input terminal are fixedly installed in the socket box. The structure mechanism is simple, simplifying the internal structure of a leakage protection socket, reducing the manufacturing cost of the leakage protection socket, and reducing the manufacturing procedures.

5. 发明授权

US11107646B2 Circuit breakers with handle bearing pins 有权
公开(公告)号：US11107646B2
公开(公告)日：2021-08-31
申请号：US16587612
申请日：2019-09-30
申请人： Eaton Intelligent Power Limited
发明人： James Gerard Maloney , Daniel Quentin Gates
IPC分类号： H01H9/20 , H01H71/50 , H01H71/52 , H01H3/04 , H01H21/04
摘要： Circuit breakers with handles having at least one handle bearing pin that contacts an upper end portion of a moving arm and allows the arm to rotate to “OFF”, “ON” and “TRIP” positions, typically about 90 degrees of rotation.

6. 发明授权

US11075046B2 Safety switch and associated methods 有权
公开(公告)号：US11075046B2
公开(公告)日：2021-07-27
申请号：US15930137
申请日：2020-05-12
申请人： ROCKWELL AUTOMATION TECHNOLOGIES, INC.
发明人： Andrew L. Tsang , Burt Sacherski , Steven Robert Tambeau , Arvind Ananthanarayanan , James Edward Dogul , Todd Bubar
IPC分类号： H01H71/50 , G08B13/12 , G08B21/18 , H01H3/02
摘要： A cable pull switch includes a polychotomous sensor configured to provide a reading of at least one of a plurality of values, the reading corresponding to a tension on a pull cable or a linear displacement of an end of a pull cable. A processor coupled to the polychotomous cable pull sensor configured to determine a rate of change of the value of the reading from the sensor and determine an occurrence of a cable pull event, the determination based on the determined rate of change of the value, and determine whether the rate of change of the value of an electrical resistance through the polychotomous cable pull sensor is below a threshold rate of change value, and adjust an upper pull threshold value to a new upper pull threshold value that is based on a present reading of the value of the electrical resistance through the strain gauge.

7. 发明申请

US20200377347A1 SWITCH ASSEMBLIES, RAIL-MOUNTED LIFT SYSTEMS, AND RAIL-MOUNTED LIFT UNITS HAVING EMERGENCY STOP DEVICES 审中-公开
公开(公告)号：US20200377347A1
公开(公告)日：2020-12-03
申请号：US16890226
申请日：2020-06-02
申请人： Liko Research & Development AB
发明人： Derek Strassle , Joseph Blackmon , Sravan Mamidi , Ka Wing Calvin Peer
IPC分类号： B66C13/50 , B66C13/22 , H01H71/68 , H01H71/50
摘要： A switch assembly for a lift unit includes a switch, an emergency stop device, and a reset actuator. The switch is arranged to move between a closed position, wherein the switch electrically couples a lift motor of the lift unit to an energy source, and an open position, wherein the switch electrically decouples the lift motor from the energy source. The emergency stop device is coupled to the switch and arranged to move the switch from the closed position to the open position. The reset actuator is coupled to the switch and arranged to move the switch from the open position to the closed position, wherein the reset actuator is controllable to move the switch from the open position to the closed position.

8. 发明申请

US20200273651A1 SAFETY SWITCH AND ASSOCIATED METHODS 审中-公开
公开(公告)号：US20200273651A1
公开(公告)日：2020-08-27
申请号：US15930137
申请日：2020-05-12
申请人： ROCKWELL AUTOMATION TECHNOLOGIES, INC.
发明人： ANDREW L. TSANG , BURT SACHERSKI , STEVEN ROBERT TAMBEAU , ARVIND ANANTHANARAYANAN , JAMES EDWARD DOGUL , TODD BUBAR
IPC分类号： H01H71/50 , G08B13/12 , G08B21/18
摘要： A cable pull switch includes a polychotomous sensor configured to provide a reading of at least one of a plurality of values, the reading corresponding to a tension on a pull cable or a linear displacement of an end of a pull cable. A processor coupled to the polychotomous cable pull sensor configured to determine a rate of change of the value of the reading from the sensor and determine an occurrence of a cable pull event, the determination based on the determined rate of change of the value, and determine whether the rate of change of the value of an electrical resistance through the polychotomous cable pull sensor is below a threshold rate of change value, and adjust an upper pull threshold value to a new upper pull threshold value that is based on a present reading of the value of the electrical resistance through the strain gauge.

9. 发明授权

US10672579B2 Circuit breaker with instant trip mechanism 审中-公开
公开(公告)号：US10672579B2
公开(公告)日：2020-06-02
申请号：US15914738
申请日：2018-03-07
申请人： LSIS CO., LTD.
发明人： Sanghyun Woo , Jeongjae Lim , Seungjin Ham
IPC分类号： H01H83/00 , H01H71/24 , H01H71/40 , H01H73/66 , H01H73/50 , H01H71/50 , H01H71/52 , H01H83/14
摘要： The circuit breaker according to the present invention comprises: a pair of contact mechanisms for switching a pair of circuits; a switching mechanism for driving the pair of contact mechanism to a circuit opening position or a circuit closing position; a trip bar rotatable to a first position for latching the switching mechanism or to a second position for releasing the switching mechanism; and an instant trip mechanism for pressing the trip bar to rotate to the second position, wherein the instant trip mechanism comprises a pair of armature assemblies and movable to a position for pressing the trip bar to rotate to the second position; and a pair of electromagnets provided to face the pair of armature assemblies and applies a magnetic attractive force to the pair of armature assemblies in response to the fault current on the circuit requiring an instant trip.

10. 发明申请

US20200043689A1 Latching Device And An Operating Mechanism With Such A Latching Device 审中-公开
公开(公告)号：US20200043689A1
公开(公告)日：2020-02-06
申请号：US16338301
申请日：2017-09-26
申请人： ABB Schweiz AG
发明人： Daniel STAFFAS , Johannes TREDOUX
IPC分类号： H01H71/50 , H01H3/30
摘要： A latching device for an operating mechanism for an electrical switching apparatus. The device has a locking member movable between a first position and a second position. In the first position the locking member is arranged to lock a drive member of the operating mechanism in a locked position, and a force of the drive member being applied to a contact portion of the locking member. In the second position the locking member is arranged to release the drive member from the locked position. At least in the first position the locking member is arranged to bear against the counter roller. A tripping member is movable between a first position locking the locking member and a second position releasing the locking member. The locking member has a first portion and a second portion. The first portion is rotatable connected to a first link around a first pivot axis, which first pivot axis is movable perpendicular to its direction. The second portion is rotatable connected to a second link around a second pivot axis and movable perpendicular to its direction. The second link is rotatable connected to the tripping element around a third pivot axis. Movement of the tripping member from its first position to its second position initiates movement of the contact portion out of force-transmitting relation with the drive member.

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