Switch module with a built-in structure of anti-surge and linkage disconnection
US10937614B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Dec 11, 2019 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Dec 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H89/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switch module with a built-in structure of anti-surge and linkage disconnection, particularly to one that has an anti-surge instant expanding detaching device with a cocoon form protection structure, when an overvoltage occurs, the metal oxide varistor would instantly heat up or explode, and the expanded graphite is linear expanded by absorbing heat and forms a cocoon form protection structure that fill up the containing space like a spider web covering the metal oxide varistor to forms a flame proof layer, when the expanding volume of the expanded graphite reach the predetermined setting, the expansion provides a push force pushing the pushing element forcing the first connecting point detaching from the second connecting point and turning off the switch, and further achieving the effects of easy manufacturing and improving the stability and the accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.