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.
Patent No.:
Date of Patent:
Aug. 05, 2025
Filed:
Oct. 24, 2023
Chengli LI, Suzhou, CN;
Chengli Li, Suzhou, CN;
Long Chen, Suzhou, CN;
[object Object];
Abstract
A leakage current detection and interruption device includes a switch module for connecting and disconnecting input and output ends of current carrying lines; a leakage current detection module for detecting a leakage current signal on the current carrying lines and generating a leakage fault signal in response thereto; an over-temperature protection module for detecting a temperature of a predefined location and/or component of the device and generating an over-temperature fault signal when the detected temperature exceeds a predetermined temperature threshold; a drive module for driving the switch module to disconnect the electrical connection in response to the leakage fault signal and/or over-temperature fault signal; and a self-test module for periodically generating a simulated leakage current signal to detect a malfunction in the leakage current detection module and/or drive module, and generating a self-test fault signal when detecting the malfunction. The device has a simple structure, is low cost and safe.