Motor assembly for driving a pump or rotary device having a cooling duct
US11965518B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2022 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Aug 5, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2211/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A motor assembly for driving a pump (e.g., liquid pump) includes an electric motor with an output shaft. A motor frame houses the electric motor so that the output shaft protrudes from an end of the motor frame. A plate assembly is coupleable about the output shaft to the end of the motor frame. The please assembly has a cavity that houses motor drive electronics. The plate assembly further defines a duct that extends between a central opening and one or more openings on an outer radial wall of the plate assembly. A fan is coupled to the output shaft so that the plate assembly is disposed between the fan and the motor frame. Rotation of the output shaft by the electric motor rotates the fan, causing air to flow through the duct. Air flow through the duct inhibits heat transfer between the electric motor and the motor drive electronics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.