公开(公告)号：US20250015612A1

公开(公告)日：2025-01-09

申请号：US18348988

申请日：2023-07-07

Applicant: Chengli LI

Inventor： Chengli LI ,  Zenghui LV ,  Xiaoming ZHANG

IPC: H02J7/00 ,  H01R13/66 ,  H01R13/713

Abstract: A leakage current protection device with charging power output, including a shell and a core assembly disposed within the shell. The core assembly includes: a ground fault circuit interrupter assembly, including a first control circuit board, and a first input assembly and a first output assembly coupled to the first control circuit board; and a charging power supply assembly, including a second control circuit board, and a second input assembly and a second output assembly coupled to the second control circuit board, wherein the second control circuit board is disposed perpendicularly to the first control circuit board, and is electrically coupled to the first control circuit board by the second input assembly. While ensuring reliability of the leakage current protection function, the spatial layout of the components achieves large current power output and fast charging power output in a relatively small space.

公开(公告)号：US20240195106A1

公开(公告)日：2024-06-13

申请号：US18064058

申请日：2022-12-09

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG

IPC: H01R13/453

CPC classification number: H01R13/4534

Abstract: A safety shield assembly for a power receptacle includes a frame having openings corresponding to socket holes of the power receptacle, and a sliding block assembly and a resilient member disposed in the frame. The sliding block assembly include a sliding block body with two inclined surfaces, at least one of which having a slot to receive a wear-resistant block. In the initial state, the resilient member urges the sliding block assembly to cover the openings. The frame further includes a position limiting member and a balancing support member. When an inserted object pushes on only one of the two inclined surfaces, the position limiting member limits a sliding motion of the sliding block assembly; when two inserted objects simultaneously push on the two inclined surfaces, the sliding block assembly is balanced on the balancing support member and slides along the frame to expose the openings.

公开(公告)号：US20230402833A1

公开(公告)日：2023-12-14

申请号：US17840233

申请日：2022-06-14

Applicant: Chengli LI

Inventor： Chengli LI ,  Long CHEN

IPC: H02H3/16 ,  G01R31/52

CPC classification number: H02H3/16 ,  G01R31/52

Abstract: A leakage current detection and interruption device for power cord includes a switch module, a leakage current detection module, an open circuit detection module, and a trigger module. The switch module controls the electrical connection between input and output ends of the power cord. The leakage current detection module has two leakage current detection lines to collect leakage current on the power supply lines of the power cord. The open circuit detection module is coupled to the leakage current detection module, and generates an open-circuit fault signal when an open circuit exists in at least one of the two leakage current detection lines. The trigger module is coupled to the switch module and the open circuit detection module, and receives a leakage fault signal and/or the open-circuit fault signal, and in response thereto, drives the switch module to disconnect the electrical connection between the input and output ends.

公开(公告)号：US20230071911A1

公开(公告)日：2023-03-09

申请号：US17715513

申请日：2022-04-07

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG ,  Shengyun NIE

IPC: H01R13/53 ,  H01R13/713

Abstract: 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.

公开(公告)号：US20230009042A1

公开(公告)日：2023-01-12

申请号：US17388856

申请日：2021-07-29

Applicant: Chengli LI

Inventor： Chengli LI ,  Shengyun NIE

IPC: H01B9/02 ,  H02H1/00 ,  H02H3/16 ,  H01B7/02

Abstract: 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.

公开(公告)号：US20150327380A1

公开(公告)日：2015-11-12

申请号：US14302685

申请日：2014-06-12

Applicant: Chengli LI

Inventor： Chengli LI ,  Fei LIN ,  Xiaoming ZHANG

IPC: H05K5/02 ,  H02H9/00

CPC classification number: H05K5/0213 ,  H02H9/005

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20240426941A1

公开(公告)日：2024-12-26

申请号：US18450000

申请日：2023-08-15

Applicant: Chengli LI

Inventor： Chengli LI ,  Long CHEN ,  Guolan YUE

IPC: G01R31/52 ,  G08B21/18

Abstract: An electrical fault detection and interruption device includes a switch module coupled between input and output ends of current carrying lines, a GFCI (ground fault circuit interrupter) fault detection module for generating a ground fault signal when detecting a leakage current on the current carrying lines, an AFCI (arc fault circuit interrupter) fault detection module for generating an arc fault signal when detecting harmful arcs on the current carrying lines, a drive module for driving the switch module to disconnect the electrical connection between the input and output ends in response to the ground fault signal and/or arc fault signal, a fault signal transfer module for generate a simulated leakage current signal in response to the arc fault signal, and a monitoring module for generating a harmful arc signal to test whether the electrical fault detection and interruption device is functioning normally.

公开(公告)号：US20240421583A1

公开(公告)日：2024-12-19

申请号：US18350817

申请日：2023-07-12

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG ,  Long CHEN

IPC: H02H3/04 ,  H02H1/00

Abstract: A leakage current protection device includes a shell and a core assembly disposed within the shell, the core assembly including a leakage current protection assembly coupled to power supply lines, the leakage current protection assembly including an execution unit and an operation unit configured to control the execution unit, the execution unit being operable to connect and disconnect an electrical connection between the input end and the output end of the power supply lines, and a auxiliary function assembly, coupled to the leakage current protection assembly, configured to perform at least one load-end function. By integrating the auxiliary function assembly into the leakage current protection device, the device can perform at least a part of the load-end function, such as power conversion function and/or electromagnetic compatibility filter function. The device is reliable and versatile, suitable for various electrical appliances. It also has a simple structure and wide applicability.

公开(公告)号：US20240272237A1

公开(公告)日：2024-08-15

申请号：US18169756

申请日：2023-02-15

Applicant: Chengli LI

Inventor： Chengli LI ,  Long CHEN

IPC: G01R31/52 ,  H02H3/08

CPC classification number: G01R31/52 ,  H02H3/08

Abstract: A leakage current detection and interruption (LCDI) device includes a switch module for controlling an electrical connection between input and output ends of power supply lines; a leakage current detection module for generating a leakage fault signal when detecting a leakage current on the power supply lines; a drive module coupled to the leakage current detection module and the switch module, for controlling the switch module to disconnect or connect the electrical connection; a wireless communication module, coupled to the drive module and/or the leakage current detection module, for wirelessly communicating with a remote control device to allow the remote control device to perform at least one of: controlling the switch module to disconnect or connect the electrical connection, setting parameters of the LCDI device, and obtaining electrical information and/or fault information of the LCDI device. The LCDI device enables remote control and monitor, and has a simple electrical structure.

公开(公告)号：US20240170936A1

公开(公告)日：2024-05-23

申请号：US18061592

申请日：2022-12-05

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG ,  Hongda LIU

IPC: H02G3/14 ,  H01R24/76

CPC classification number: H02G3/14 ,  H01R24/76

Abstract: A power receptacle includes a receptacle body having first snap slots, and an outer cover disposed over the receptacle body, having first snap hooks and second snap hooks. The first snap hooks detachably engage with the first snap slots. The receptacle further includes a reset button cap and a test button cap disposed on the outer cover, each cap having second snap slots which engage with the second snap hooks in a detachable and slidable snapping engagement. The snap engagements allow the outer cover to be conveniently installed on the receptacle body, and allow the user to depress the reset button cap and test button cap to activate the reset button and test button inside the receptacle. When the outer cover is worn or damaged, it can be conveniently detached from the receptacle body and replaced.