Actuator magnetic circuit
US4956735A · kind A · utility
0Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1989 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | May 8, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/0356
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic circuit structure for use in an actuator, where the actuator has a displaceable assembly and a coil attached to such assembly, is shown to include flux conductors having generally parallel first and second poles defining gaps therebetween and an integrally formed base joining one end of the first and second poles so that the conductor defines a continuous flux path, and magnets attached to each of the first poles in the gaps so that flux from the magnets is directed across the gaps, wherein a portion of the coil passes through said gap, so that when a current is passed through the coil, the assembly moves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.