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:
Apr. 07, 2020
Filed:
Nov. 21, 2017
Chengli LI, Suzhou, CN;
Chengli Li, Suzhou, CN;
Guolan Yue, Suzhou, CN;
Other;
Abstract
A ground fault circuit interrupter device includes a switch module, a ground fault detection module, a self-testing module and a tripping module. The switch module is coupled between the input and output ends to control the electrical connection between the input and output. The ground fault detection module detects whether a leakage current signal exists at the output end. The self-testing module is coupled to the ground fault detection module and periodically generates a self-test pulse signal which simulates the leakage current signal. The tripping module is coupled to the ground fault detection module and the switch module, to control the movement of the switch module. The device includes at least two tripping drive components, which prevents the device from becoming ineffective when the tripping module malfunctions due to long time use or use under high temperatures. This greatly improves safety of the device.