Safety circuit for a rotary drive
US10320182B2 · kind B2 · utility
0Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Apr 15, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/531
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Safety circuit for a rotary drive, in particular for a vehicle hatch, which circuit has a braking effect on the rotary drive when the rotary drive is deactivated and external forces are applied to the hatch from the outside, the rotary drive comprising at least one electric motor, the winding of which can be short-circuited by at least one triac, in which just one triac is provided between the connections of the winding, the gate of which triac is connected to one of the connections by two Zener diodes that are connected in series in an anti-parallel manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.