Cooling arrangement in frequency converter
US7023712B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Apr 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a cooling arrangement in a frequency converter, the arrangement being configured to convey heat generated at the frequency converter to a space surrounding the frequency converter, comprising a power part (10) of the frequency converter, a control part (20) and cooling means, comprising a cooling motor (31) and a transfer means (32) for producing cooling. In accordance with the invention, a cooling frequency converter is arranged in connection with the frequency converter to control the cooling means. The power part of the cooling frequency converter comprises a rectifier (11) of the frequency converter, an intermediate circuit (12) of the frequency converter as well as a unique power unit (43) of the cooling frequency converter. The power unit (43) is arranged between the intermediate circuit (12) and the cooling motor (31) in order to supply power to the cooling motor (31), the cooling frequency converter having a control unit (50) connected to the power unit (43) and controlling the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.