Self-cooling unit
US6798657B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | May 30, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20136
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cooling system that can be used, for example, for cooling electrical circuit boards housed in an equipment cabinet. The cooling system includes a flow-rate-amplifying pump configured to introduce ambient air into the cabinet. The flow-rate-amplifying pump is a passive device, which has a primary intake and a secondary intake and is designed to produce a large flow of relatively cool ambient air into the cabinet through the primary intake using a small volume of compressed air applied to the secondary intake. In one embodiment, the cooling system has an auxiliary pump driven by a windmill device. Rotation of a propeller in the windmill device is converted into piston oscillation in the auxiliary pump, which oscillation is used to compress air and apply it to the secondary intake of the flow-rate-amplifying pump. A cooling system of the invention can provide efficient cooling while being self-sustaining and generating less noise and/or electrical interference than prior art cooling systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.