Electronic device and frequency converter of motor
US8310830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2007 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Nov 9, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20918
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A frequency converter for driving a motor, includes a circuit board, having at least one first heat-generating element mounted thereon; a heat sink, connected to the at least one first heat-generating element; a fan, facing the heat sink; and a bracket, for positioning the at least one heat-generating element relative to the heat sink and the circuit board. The frequency converter includes a separating member for separating at least one portion of at least one second heat-generating element from the circuit board to prevent the cooling air guided to the at least one second heat-generating element from flowing to the circuit board. The frequency converter includes an airflow guiding member for guiding the cooling air from the fan to the heat sink and the at least one second heat-generating element and a flow guiding gate dispensing more airflow to the region corresponding to the at least one first heat-generating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.