Core with coils and permanent magnet for switching DC relays, RF microwave switches, and other switching applications
US6414577B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 14, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Feb 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2051/2218
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A core with coils and permanent magnet, and a movable magnet holder including permanent magnet and contained within a channel defined by a magnet holder housing is provided. By aligning the north and south poles of the two permanent magnets in relation to each other and the poles of the electromagnet formed by the electromagnetic coils and core, motion of the magnet holder both toward and away from the core between a first and second position can be readily induced by applying voltage across the leads of the electromagnetic coils. This motion can be used to move a switching means back and forth between two positions relating to the first and second positions of the magnet holder to perform various failsafe, latching and other useful switching functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.