Method using bismuth based alloy as power-off element
US10937602B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Nov 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method using a bismuth based alloy as power-off element, comprising: a bismuth based alloy is used as the power-off element and a melting point of the bismuth based alloy is between 100° C. to 380° C.; when the power-off element is in an environment below the melting point, two conductive elements are mutually contacted and capable of conducting currents, whereas the power-off element is only receptive of the currents but does not serve as a medium for conducting the currents; when a working temperature of a switch or the socket is close to or exceeds the melting point, the power-off element loses rigidity and enables the two conductive elements to be separated from each other, thereby forming an electrically disconnected state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.