Hall-effect pressure switch
US7679362B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2007 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Apr 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/34
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switch includes housing and a magnet that is mounted inside the housing. The magnet generates a magnetic field having magnetic flux. The switch further includes a flux concentration device that is located inside the housing and that selectively moves between first and second positions. An actuator assembly is located inside the housing and selects the first and second positions based on the input. A hall-effect device is located between the magnet and the flux concentration device and conducts a current having a first value when the magnetic flux is less than a predetermined magnetic flux threshold. The hall-effect device conducts current having a second current value when the magnetic flux exceeds the predetermined magnetic flux threshold. The first position communicates a first magnetic flux to the hall-effect device and the second position communicates a second magnetic flux that is different from the first magnetic flux to the hall-effect device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.