Device for setting the rotor of a rotary switch
US5012292A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1988 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | Sep 26, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H5/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Device for setting the rotor of a rotary switch in one of three possible switching positions (positions 1 to 3). Such rotary switches can be for example wave guide or coaxial switches. The excitation of windings in this device for a rotary direction is effected by a pair of conductors with a current pulse. This current pulse, via an initial drive system and by means of a drive torque produced by the windings of the latter, moves the rotor from an initial end position (position 1) in the direction of a mid-position (position 3) and to an intermediate position. After the current pulse has been switched off, a permanently imprinted magnetic detent torque brings about the further rotation of the rotor to the mid-position (position 3), where the rotor is centered by the shape of the detent torque. A further current pulse on the same pair of conductors produces a drive moment which moves the rotor from the mid-position (position 3) to the other end position (position 2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.