Bus bar for connecting electrical components with arrangement for measuring current and power electronics for controlling an electric machine
US6380728B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Mar 30, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2201/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power electronics device for controlling an electric machine, for example a permanently excited synchronous machine includes a plurality of capacitors and power semiconductors connected to a bus bar. To measure currents through the bus bar, the bus bar includes at least one portion with a shaped section. This at least one portion comprises an essentially U-shaped configuration. A sensor of a current-measuring device is provided in the vicinity of the at least one portion to measure the current flowing therethrough. The sensor is designed to measure an electric and/or magnetic field in the bus bar and is in turn connected to an evaluation device. The sensor and/or the evaluation device are disposed on at least one control printed circuit board of the power electronics device, which is arranged underneath the bus bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.