公开(公告)号：US20220416484A1

公开(公告)日：2022-12-29

申请号：US17368813

申请日：2021-07-06

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG ,  Shengyun NIE

IPC: H01R13/717 ,  F21V23/00 ,  F21V8/00 ,  F21V23/04 ,  H01R13/66

Abstract: 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.

公开(公告)号：US20240258735A1

公开(公告)日：2024-08-01

申请号：US18170304

申请日：2023-02-16

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, including: a slider frame having first and second openings with shapes corresponding to socket holes of the power receptacle; a first slider block disposed in the slider frame, having a first driving portion and a first blocking portion which corresponds in position to the second opening; a second slider block disposed in the slider frame, having a second driving portion and a second blocking portion which corresponds in position to the first opening; and a resilient member disposed between the first and second slider blocks and configured to urge the slider blocks to move relative to each other in the slider frame, to switch between a first state of the safety shield assembly where the first and second openings are respectively covered by the second and first blocking portions and a second state where the first and second openings are exposed.

公开(公告)号：US20230361514A1

公开(公告)日：2023-11-09

申请号：US17740098

申请日：2022-05-09

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG ,  Fei LIN

IPC: H01R13/713 ,  H01R13/717

CPC classification number: H01R13/713 ,  H01R13/7175

Abstract: A power plug includes a shell, input insertion plates, output power lines, a push button on the shell, and a trip assembly inside the shell for controlling electrical coupling between the input insertion plates and output power lines. The trip assembly includes a light emitting element, electrical coupling terminals, and a drive member mechanically coupled to the push button and configured to, in response to a pressing of the push button, control electrical coupling of the electrical coupling terminals, which in turn controls the electrical coupling between the input insertion plates and output power lines. The drive member includes a reflective portion that reflects a part of the light from the light emitting element to the push button as an indicator light. The dual function drive member that accomplishes both mechanical coupling and light transmission reduces the number of components. A device with an electrical control circuit is also disclosed.

公开(公告)号：US20230352885A1

公开(公告)日：2023-11-02

申请号：US17740092

申请日：2022-05-09

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG ,  Fei LIN

IPC: H01R13/66 ,  H01R24/28 ,  H02H3/16

CPC classification number: H01R13/665 ,  H01R24/28 ,  H02H3/162

Abstract: A leakage current detection interrupter (LCDI) device for an electrical appliance includes a shell and a trip assembly inside the shell. The shell includes an upper cover and a base cover joined together, and either the upper cover or the base cover includes a first cover and a removable second cover. The second cover spatially corresponds to a tail portion of the trip assembly; when it is removed, the tail portion is expose to allow a power cord to be connected to the LCDI device. By using a removable second cover, the cord can be conveniently assembled with the LCDI device when the LCDI device is installed on the electrical appliance, allowing the LCDI to be shipped without the cord. This can reduce the packed size of the LCDI device for easier shipping and storage, as well as lowering cost. It also makes the LCDI device more versatile.

公开(公告)号：US20230082601A1

公开(公告)日：2023-03-16

申请号：US17476236

申请日：2021-09-15

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG

IPC: H01R13/713 ,  H01R24/30

Abstract: A power plug with LCDI includes a shell, multiple input insertion prongs partially exposed to an exterior of the shell, a movement assembly disposed in the shell and coupled to the multiple input insertion prongs, a male end assembly and a female end assembly both disposed in the shell, and multiple output conductors. A first end of the male end assembly is connected to the movement assembly and electrically coupled to the multiple input insertion prongs via the movement assembly; a second end of the male end assembly is inserted into a first end of the female end assembly; a second end of the female end assembly is electrically coupled to the multiple output conductors; and the movement assembly is configured to establish or cut off an electrical connection between the multiple input insertion prongs and the multiple output conductors. This power plug improves efficiency of assembly.

公开(公告)号：US20230073077A1

公开(公告)日：2023-03-09

申请号：US17472404

申请日：2021-09-10

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG ,  Zenghui LV

IPC: G01R31/52 ,  H02H3/16 ,  H02H3/08 ,  H02H3/33

Abstract: An LCDI device includes a shell, a movement unit, and a wire bundle assembly. The shell includes a base and an upper cover connected to each other. The movement unit is disposed in the base, and includes at least one connecting conductor. A first end of the wire bundle assembly is disposed in the upper cover and includes at least one shield detection line, where the shield detection line is electrically coupled to the connecting conductor. The shield detection line includes a connecting terminal at the first end of the wire bundle assembly which is configured to received and retain the connecting conductor inserted therein. The structure of the LCDI enables fast and secure assembling of the wire bundle assembly and movement unit, and eliminates the need for internal re-adjustment of the shield detection lines after assembling, which promotes automation of large scale production.

公开(公告)号：US20250069838A1

公开(公告)日：2025-02-27

申请号：US18469478

申请日：2023-09-18

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG

IPC: H01H71/32 ,  H01H71/10

Abstract: An electric-driven trip and reset mechanism includes input terminal and output terminals, and a position control unit, which includes a control circuit board and a coil support frame assembly and a magnet support frame assembly both coupled to the control circuit board. The input terminal is mounted on the coil support frame assembly and coupled to the control circuit board; the output terminal is mounted on the magnet support frame assembly and coupled to the control circuit board. The magnet support frame assembly is configured to move between first position farther away from the coil support frame assembly and second position closer to the coil support frame assembly. At the first position, the input and output terminals are disconnected from each other, and at the second position, the input and output terminals are connected to each other. The device can automatically switch between reset and trip functions.

公开(公告)号：US20150116872A1

公开(公告)日：2015-04-30

申请号：US14310223

申请日：2014-06-20

Applicant: Chengli LI

Inventor： Chengli LI ,  Xiaoming ZHANG

IPC: H02H1/00 ,  H02H3/16

CPC classification number: H02H1/0015 ,  H01R13/713 ,  H01R24/22 ,  H01R2103/00

Abstract: An arc fault circuit interrupter includes: an insulating casing, electrical input terminals and electrical output terminals, first and second electrical path connected between the electrical input terminals and electrical output terminals, and a movement mechanism. The movement mechanism includes: first and second moving contact arms, electrically coupled to the first and second electrical paths, respectively; a control circuit board; an arc detection mechanism, electrically coupled to the control circuit board, for detecting an arc signal and causing the control circuit board to generate a trip signal; a tripping mechanism, electrically coupled to the control circuit board, for receiving the trip signal to disconnect the electrical coupling between the first moving contact arm and the first electrical path and/or the electrical coupling between the second moving contact arm and the second electrical path. The device can immediately cut off the power when detecting an arc signal to prevent fire hazard.

Abstract translation: 电弧故障电路断流器包括：绝缘壳体，电输入端子和电输出端子，连接在电输入端子和电输出端子之间的第一和第二电路，以及移动机构。 移动机构包括：分别电耦合到第一和第二电路径的第一和第二移动接触臂; 控制电路板; 电弧检测机构，电耦合到控制电路板，用于检测电弧信号并使控制电路板产生跳闸信号; 电耦合到控制电路板的跳闸机构，用于接收跳闸信号以断开第一移动接触臂和第一电路之间的电耦合和/或第二移动接触臂与第二电路之间的电耦合 。 当检测到电弧信号时，设备可以立即切断电源，以防止火灾。