Immersion-cooled inductors in DC-to-DC converters and methods of operating thereof
US11848129B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2023 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Sep 15, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2210/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described herein are DC-DC converters having various immersion-cooling features enabling high-power applications, such as cross-charging electric vehicles. For example, the inductor of a DC-DC converter may be formed using metal and insulator sheets stacked and wound into an inductor coil assembly. The metal sheet comprises grooves, extending parallel to the coil axis and forming coil fluid pathways through this assembly thereby providing immersion cooling to the inductor. An inductor-cooling liquid may be pumped through these fluid pathways while being in direct contact with the metal sheet, at least around the grooves. In some examples, these grooves are distributed along the entire length of the metal sheet. Multiple inductors may be used to enable operations of multiple converter units, e.g., operating out of phase. These inductors may be fluidically interconnectors and have the same cooling features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.