Patent · US Active

Surge protection device

US10148079B2 · kind B2 · utility

1Cited by

16References

13Claims

0Family size

Assignee

Dongguan Littelfuse Electronics Company Limited · CN

Inventors

Wen Yang · Tangxia, CN
Hailang Tang · Tangxia, CN
Yanjing Xiao · Tangxia, CN

Key dates

Filing date	Apr 7, 2015
Grant date	Dec 4, 2018
Priority date	—
Expiry date	Apr 7, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2037/763
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit protection device includes a metal oxide varistor (MOV), a spring terminal and a thermal disconnect coupling the spring terminal to the MOV. A gas discharge tube (GDT) is coupled to the MOV. The spring terminal is biased such that upon occurrence of an overvoltage condition, heat generated by the MOV melts the thermal disconnect and allows the spring terminal to be displaced away from the MOV, thereby creating an opening circuit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.