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1. 发明申请

US20230071911A1 POWER PLUG WITH LEAKAGE CURRENT DETECTION INTERRUPTER AND ARC PROTECTION 有权
公开(公告)号：US20230071911A1
公开(公告)日：2023-03-09
申请号：US17715513
申请日：2022-04-07
申请人： Chengli LI
发明人： Chengli LI , Xiaoming ZHANG , Shengyun NIE
IPC分类号： H01R13/53 , H01R13/713
摘要： A power plug with leakage current detection and protection interrupter and arc protection includes: a shell, a trip assembly disposed within the shell, a cable connector electrically coupled to the trip assembly, and an arc protection shield disposed between the trip assembly and the shell. The trip assembly includes a switch having input and output contact terminals. The arc protection shield is configured to isolate the input and output contact terminals of the switch from the shell. The arc protection shield includes one or more arc blocking baffles, each disposed near corresponding input and output contact terminals, so as to isolate the contact terminals from the shell. By providing the arc protection shield between the input and output contact terminals and the shell, the shell is protected from arcs formed at the input and output contact terminals due to connection and disconnection operations. This prevents damage to the shell and improves user experience and safety.

2. 发明申请

US20230009042A1 POWER CORD AND LEAKAGE CURRENT PROTECTION DEVICE WITH CORD CONDITION DETECTION CIRCUIT 有权
公开(公告)号：US20230009042A1
公开(公告)日：2023-01-12
申请号：US17388856
申请日：2021-07-29
申请人： Chengli LI
发明人： Chengli LI , Shengyun NIE
IPC分类号： H01B9/02 , H02H1/00 , H02H3/16 , H01B7/02
摘要： A power cord includes multiple current-carrying wires covered by an outer insulating layer, each wire including a current-carrying conductor covered by an insulating layer. At least one wire further includes a shield layer covering the insulating layer and a metal conductor between the insulating layer and the shield layer. The shield layer is formed of a band wound around the metal conductor and insulating layer. The outward-facing surface of the band is insulating; the inward-facing surface has one or more conductive regions and one or more insulating regions. One insulating region is located along a longitudinal trailing edge of the band. Consecutive turns of the band partially overlap each other; the trailing edge of a subsequent turn is disposed over part of a previous turn. The structure ensures effective insulation of the metal conductor from other components. The power cord is used in a leakage current detection and interruption device.

3. 发明申请

US20150327380A1 FIREPROOF SEPARATOR BOARD AND PLUG-BASED CIRCUIT INTERRUPTER EMPLOYING THE FIREPROOF BOARD 有权
标题翻译： FIREPROOF分离器板和基于插头的电路中断器使用FIREPROOF板
公开(公告)号：US20150327380A1
公开(公告)日：2015-11-12
申请号：US14302685
申请日：2014-06-12
申请人： Chengli LI
发明人： Chengli LI , Fei LIN , Xiaoming ZHANG
IPC分类号： H05K5/02 , H02H9/00
CPC分类号： H05K5/0213 , H02H9/005
摘要： This invention provides a fireproof separator board, which is made of a flame-retardant, high temperature resistant material and disposed within an insulating casing of an electrical device, for preventing the heat generated by the electrical components of the electrical device from being conducted to the insulating casing. This invention also provides a plug-based circuit interrupter that includes the fireproof separator board. The fireproof separator board and the plug-based circuit interrupter of this invention can effectively prevent high temperature and fire caused by the electrical components that could melt the casing.
摘要翻译：本发明提供一种防火隔板，其由阻燃耐高温材料制成，并设置在电气设备的绝缘壳体内，用于防止电气设备的电气部件产生的热量被传导到绝缘套管本发明还提供了一种包括防火隔离板的插头式电路断路器。本发明的防火隔板和插头式电路断路器可以有效地防止可能熔化壳体的电气部件引起的高温和火灾。

4. 发明申请

US20210313796A1 LEAKAGE CURRENT DETECTION AND PROTECTION DEVICE, AND POWER CONNECTOR AND ELECTRICAL APPLIANCE EMPLOYING THE SAME 有权
公开(公告)号：US20210313796A1
公开(公告)日：2021-10-07
申请号：US17349133
申请日：2021-06-16
申请人： Chengli LI
发明人： Chengli LI , Long CHEN
IPC分类号： H02H7/20 , H02H1/00
摘要： A leakage current detection and protection device includes a leakage current detection module for generating a detection feedback signal when detecting a leakage current on the power supply lines, wherein the power supply lines supply a working power to the leakage current detection module during half of the AC power cycles; a self-test module for testing whether the leakage current detection module is faulty based on the detection feedback signal, which includes: a simulated leakage current generating circuit for generating a simulated leakage current signal; a fault signal generating module for generating a self-test fault signal when the leakage current detection module has a fault; and a self-test compensation module for supplying an auxiliary working power to the leakage current detection module so the leakage current detection module is in a working state whenever the simulated leakage current is generated. This prevents misjudgment by the leakage current detection module.

5. 发明申请

US20210239770A1 POWER CORD FOR USE WITH A LEAKAGE CURRENT DETECTION AND INTERRUPTION DEVICE 有权
公开(公告)号：US20210239770A1
公开(公告)日：2021-08-05
申请号：US17238693
申请日：2021-04-23
申请人： Chengli LI
发明人： Chengli LI , Shengyun NIE
IPC分类号： G01R31/52 , G01R31/58
摘要： A power supply cord for use with a leakage current detection and interruption device, including at least two power supply lines, at least two insulating layers respectively covering the at least two power supply lines, at least two shield lines respectively covering the at least two insulating layers, and at least one insulating structure covering at least one of the at least two shield lines to electrically insulate the at least two shield lines from each other. By providing the insulating structure outside of at least one of the shield lines, the shield lines of different power supply lines are independent of each other, so that the shield lines can better detect leakage currents in the power supply lines.

6. 发明申请

US20210225606A1 LEAKAGE CURRENT PROTECTION DEVICE EMPLOYING A PIVOTING ACTUATOR IN THE TRIP ASSEMBLY 有权
公开(公告)号：US20210225606A1
公开(公告)日：2021-07-22
申请号：US16789283
申请日：2020-02-12
申请人： Chengli LI
发明人： Chengli LI , Xiaoming ZHANG , Shengyun NIE
IPC分类号： H01H71/24 , H01H71/32 , H01H71/12 , H01H71/52 , H01H83/04 , H01H83/20 , H01H73/44 , H01H73/20 , H01H73/08 , H02H3/16
摘要： A leakage current protection device includes a shell and a core assembly disposed within the shell. The core assembly includes a control circuit board, a trip assembly disposed on the control circuit board, and an input end and an output end connected to the trip assembly. The trip assembly includes a first driving member movable linearly in a first direction and a second driving member pivotable around a pivotal support axis, where the first and second driving members are mechanically engaged with each other and move together with each other. The second driving member has two driving points configured to move in a second direction as the second driving member pivots, the second direction being non-parallel to the first direction. Movements of the two driving points of the second driving member in the second direction are operable to electrically connect or disconnect the input and output ends.

7. 发明申请

US20210075211A1 RELAY-TYPE LEAKAGE CURRENT PROTECTION DEVICE 有权
公开(公告)号：US20210075211A1
公开(公告)日：2021-03-11
申请号：US16564857
申请日：2019-09-09
申请人： Chengli LI
发明人： Chengli LI , Long CHEN , Shengyun NIE
IPC分类号： H02H3/32 , H02H1/00 , H02H3/04
摘要： A relay-type leakage current protection device includes a switch circuit, a relay circuit, a leakage current detection circuit, a self-test circuit, and a drive circuit. The switch circuit controls electrical connection between input and output ends of the power supply. The relay circuit is coupled to the input end and controls the open/close state of the switch circuit. The leakage current detection circuit detects a leakage current on the power supply lines. The self-test circuit is coupled to the power supply lines and the leakage current detection circuit, to generate a self-test pulse signal which simulates the leakage current and to detect a fault condition in the leakage current detection circuit. The drive circuit drives the relay circuit in response to receiving a leakage current signal from the leakage current detection circuit or a fault signal from the self-test circuit.

8. 发明申请

US20180166242A1 LEAKAGE CURRENT PROTECTION DEVICE 审中-公开
公开(公告)号：US20180166242A1
公开(公告)日：2018-06-14
申请号：US15592674
申请日：2017-05-11
申请人： Chengli LI
发明人： Chengli LI , Fei LIN
IPC分类号： H01H71/10 , H01H71/02 , H01H71/08 , H01H71/04
CPC分类号： H01H71/10 , H01H71/0264 , H01H71/04 , H01H71/08 , H01H71/58 , H01H73/44 , H01H83/04 , H01H83/144 , H01R13/7135 , H02H3/334
摘要： A leakage current protection device includes an electrical and mechanical assembly which includes: a circuit board; moving contact plates; an auxiliary switch; a reset shaft, having a hook in its lower portion, a bottom end of the reset shaft being set against one end of a reset spring, another end of the reset spring being set against the base; a disconnect mechanism, having a hook at its upper portion to engage with the hook of the reset shaft in a vertical direction; a trip coil and a trip plunger disposed on a side of the disconnect mechanism, where the disconnect mechanism is driven by the trip plunger to move horizontally. The disconnect mechanism further includes a pushing end that controls the auxiliary switch and lifting levers that control the moving contact plates.

9. 发明申请

US20150155698A1 ARC FAULT CIRCUIT INTERRUPTER 有权
标题翻译： ARC故障电路中断器
公开(公告)号：US20150155698A1
公开(公告)日：2015-06-04
申请号：US14306686
申请日：2014-06-17
申请人： Chengli Li
发明人： Chengli LI , Guolan YUE
IPC分类号： H02H1/00
CPC分类号： H02H1/0015 , H02H3/044
摘要： An arc fault detection circuit for an arc fault circuit interrupter (AFCI). The arc fault detection circuit includes an arc detecting circuit for detecting an arc fault in one or more power supply lines and outputting a detected signal, an arc filtering circuit electrically coupled to an output terminal of the arc detecting circuit for removing signal parts unrelated to the arc fault from the detected signal and outputting a filtered half-cycle signal, and an arc processing circuit electrically coupled to an output terminal of the arc filtering circuit for generating, based on the filtered half-cycle signal received, a processed half-cycle signal characterizing the arc fault. The arc fault detection circuit also includes simulated arc testing circuit that has a user-touchable test switch, and an arc oscillator to generate a simulated arc fault signal for testing the arc fault detection circuit or its respective components.
摘要翻译：一种用于电弧故障断路器（AFCI）的电弧故障检测电路。电弧故障检测电路包括用于检测一个或多个电源线中的电弧故障并输出检测信号的电弧检测电路，电耦合到电弧检测电路的输出端的电弧滤波电路，用于去除与并且输出滤波的半周期信号，以及电弧处理电路，其电耦合到所述电弧滤波电路的输出端子，用于基于所接收的经滤波的半周期信号，生成经处理的半周期信号表征电弧故障。电弧故障检测电路还包括具有用户触摸测试开关的模拟电弧测试电路和产生用于测试电弧故障检测电路或其相应部件的模拟电弧故障信号的电弧振荡器。

10. 发明申请

US20220416484A1 LEAKAGE CURRENT PROTECTION DEVICE WITH ILLUMINATION FUNCTION 有权
公开(公告)号：US20220416484A1
公开(公告)日：2022-12-29
申请号：US17368813
申请日：2021-07-06
申请人： Chengli LI
发明人： Chengli LI , Xiaoming ZHANG , Shengyun NIE
IPC分类号： H01R13/717 , F21V23/00 , F21V8/00 , F21V23/04 , H01R13/66
摘要： A leakage current protection device with an illumination function, including a shell, a movement assembly in the shell, power input and output assemblies coupled to the movement assembly, and an illumination assembly disposed inside the shell, which includes: an illumination control board electrically coupled to the power input or output assembly; a sensing unit coupled to the illumination control board and configured to sense an ambient condition outside the shell to generate a sensing output signal; a light emitting unit coupled to the control board, and controlled by the control board to turn on or off in response to the sensing output signal; and a light guide unit, formed by an operating element partially protruding out of the shell and disposed adjacent the light emitting unit, configured to guide the illumination light emitted by the light emitting unit out of the shell. The device is convenient to use and compact.

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