Heat pump device
US10928112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2016 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Aug 26, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heat pump device is equipped with a compressor for compressing a refrigerant; a converter for converting a voltage of an alternating current power supply into a boosted direct current; an inverter for converting the direct current output of the converter into an alternating current, supplying the alternating current to the compressor; a voltage detector for detecting an input voltage to the converter; a stop controller for stopping operation of the converter and the inverter when resonance occurs in the voltage detected by the voltage detector; a limit controller for sending an instruction to limit an input current to the converter so as to avoid the resonance; and a manually operable input interface for sending an instruction to cause the limit control unit to operate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.