Multi unit electrical apparatus with dual inlet fan positioned opposite unit bays
US5168424A · kind A · utility
87Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Feb 14, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20718
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Electrical apparatus is described which may include one or more electrical devices, each being located in a corresponding one of a plurality of device positions defined in a first section of a housing. The system further includes at least one dual side entry brushless dc motor driven centrifugal fan positioned such that each side entry is opposite a device position, and a power supply unit. In operation, the fans provide forced air cooling of the devices and power supply. Each of the devices is selected from a plurality of possible device types, each device type presenting a different impedance to the flow of cooling air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.