Motor drive unit
US11777379B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Aug 11, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2211/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor assembly for driving a pump or rotary device features a power plane with a circular geometry to be mounted inside a space envelope having a similar circular geometry formed on an end-plate between an inner hub portion and a peripheral portion that extends circumferentially around the space envelope of the end-plate. The power plane is a multi-layer circuit board or assembly having: a power layer with higher temperature power modules for providing power to a motor, a control layer with lower temperature control electronics modules for controlling the power provided to the motor, and a thermal barrier and printed circuit board layer between the power layer and the control layer that provides electrical connection paths between the power modules of the power plane and the control electronics modules of the control layer, and also provides insulation between the power layer and the control layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.