Switching device with improved epoxy hermetic seal
US11621131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Oct 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/17
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrical switching devices, such contactor and fuse devices, are disclosed that have improved reliability particularly through thermal cycling. One electrical switching device according to the present invention comprises an outer housing and internal operational components within the outer housing. An internal housing in included in that outer housing that surrounds at least some of the internal operational components. A sealing material is also included within the outer housing that is capable of forming a hermetic seal within the outer housing, wherein the sealing material contacts the internal housing. The internal housing has a CTE that substantially matches the CTE of the sealing material. Electrical system according to the present invention comprises an electrical circuit and an improved electrical switching device electrically connected to the electrical circuit to reliably open or close the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.