Electric motor
US5202596A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | May 10, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K17/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electric motor is provided with an attached frequency converter for rotational speed control. The frequency converter consists of a power supply and other electronic elements. While these electronic elements are arranged as a constructive unit with the electric motor, the power supply is arranged as an individual constructive unit separated from the motor, in the form of a module. The module can be made separately from the motor and electrically connected to the motor constructive unit through a connective cable. The use of the motor is no longer dependent on cooling radiators, required for the cooling of the power supply, as only the module is now fitted with cooling radiators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.