The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 21, 2025

Filed:

Mar. 28, 2022
Applicant:

Chengli LI, Suzhou, CN;

Inventors:

Chengli Li, Suzhou, CN;

Long Chen, Suzhou, CN;

Guolan Yue, Suzhou, CN;

Assignee:

[object Object];

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/08 (2006.01); G01R 31/52 (2020.01); H02H 1/00 (2006.01); H02H 7/00 (2006.01);
U.S. Cl.
CPC ...
H02H 3/08 (2013.01); G01R 31/52 (2020.01); H02H 1/0007 (2013.01); H02H 7/008 (2013.01);
Abstract

A leakage current detection and interruption device includes a switch module for controlling electrical connection of power supply lines between input and output ends; a leakage current detection module, including first and second leakage current detection lines respectively covering the first and second power supply lines, to detect leakage current thereon and to generate respective first and second leakage signals in response thereto; a signal processing module, coupled to the leakage current detection module to receive the first and/or second leakage signals and to generate a leakage fault signal in response thereto; and a trigger module, coupled to the switch module and the signal processing module, to receive the leakage fault signal and in response thereto, to drive the switch module to disconnect the electrical connection to the output end. The device can detect current leaks on the two power supply lines and is simple, low-cost and reliable.


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