Direct drive outer rotor brushless DC motor drive wheel
US12027916B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2021 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Nov 2, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The presently disclosed invention provides an outer rotor brushless direct current motor that includes a tire integrated as part of the outer rotor, and is thus configured as a direct drive wheel, such as may be used on a mobile robot. The drive wheel includes a cylindrical outer rotor having a plurality of poles positioned on an inner surface, a stationary stator spaced inwardly from the rotor and defining a magnetic clearance gap between the plurality of poles of the rotor and a plurality of electromagnets positioned on an outer circumference of the stator, and a stationary central shaft. The stator is mounted to the central shaft and the rotor is configured for rotation about the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.