Backflow preventing device, power conversion apparatus, and refrigerating and air-conditioning apparatus
US10404196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2014 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Oct 9, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backflow preventing device includes a backflow preventing element that is connected between a power supply and a load and that prevents electric current from flowing backward from the load side toward the power supply side, and a commutating device that performs a commutation operation for causing the electric current to flow to a commutation path connected in parallel with the backflow preventing element. A plurality of elements including at least one or more of elements constituting the commutating device are configured as a module, so that, for example, the device can be reduced in size. Moreover, a simplified heat-dissipation design and a simplified air-duct design can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.