Method and apparatus for cooling current carrying coil
US6262503A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1998 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Oct 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/227
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for cooling a current carrying coil and a specialized coil is provided for use in such method and apparatus. The coil has openings formed therein between at least selected internal wires of the coil in at least one non-working region along the coil. Such openings may for example extend through the coil in a direction substantially perpendicular to the plane of the coil or substantially parallel to such plane. A heat sink is provided in each such opening which heat sink may be a fluid in the opening, which fluid is preferably flowing through the opening. The fluid may be a gas such as air or a liquid such as oil or water. Alternatively, the heat sink may be a comb formed of a material having good heat conduction characteristics, which comb has a plurality of fingers which pass through corresponding openings in a region of a coil and a backbone or block through which heat may be removed from the fingers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.