Closure apparatus for a housing for damping interference signals of a commutated electric motor
US9960658B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2012 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Aug 24, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mechanically commutated electric motor is at least partially arranged in a closure apparatus for a housing. The closure apparatus includes at least a first rod-like throttle coil and a second rod-like throttle coil which are wound in opposite directions with coil wire and which are arranged parallel to one another. The first throttle coil is electrically directly coupled to a first coupling element provided for electrical coupling to the mechanically commutated electric motor, and the second throttle coil is electrically directly coupled to a second coupling element provided for electrical coupling to the mechanically commutated electric motor, such that, when the mechanically commutated electric motor is connected to the coupling elements and the mechanically commutated electric motor is operated, the magnetic fluxes (Phi1, Phi2) in the first throttle coil and second throttle coil at least partially compensate one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.