Title:
HEAT PUMP DEVICE, AIR CONDITIONER, AND REFRIGERATING MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/240686
Kind Code:
A1
Abstract:
A heat pump device (100) is provided with a compression mechanism (7) for compressing a refrigerant, a motor (8) for driving the compression mechanism (7), an inverter (9) for applying a voltage to the motor (8), and an inverter control unit (10) that uses a carrier signal to generate a drive signal for driving the inverter (9). The inverter control unit (10) periodically changes the carrier frequency of a carrier signal in a heat drive mode for heating a refrigerant, and generates a drive signal such that the time for the application of a real vector voltage to the motor (8) is constant regardless of the changed carrier frequency.
Inventors:
KUBOTA SHUNSUKE (JP)
UEMURA KEISUKE (JP)
YAMAKAWA TAKASHI (JP)
UEMURA KEISUKE (JP)
YAMAKAWA TAKASHI (JP)
Application Number:
PCT/JP2019/021057
Publication Date:
December 03, 2020
Filing Date:
May 28, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02; F25B1/00; H02M7/48; H02P27/08
Domestic Patent References:
| WO2012172684A1 | 2012-12-20 | |||
| WO2014188566A1 | 2014-11-27 |
Foreign References:
| JP2005110348A | 2005-04-21 | |||
| JP2014161190A | 2014-09-04 | |||
| JP2010178449A | 2010-08-12 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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