Title:
HEAT PUMP DEVICE, AND AIR CONDITIONER, HEAT PUMP WATER HEATER, REFRIGERATOR, AND FREEZER COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2014/188566
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a heat pump device capable of efficiently and reliably preventing liquid refrigerant from accumulating inside a compressor by keeping an amount of electrical power supplied to the compressor motor to be constant and keeping an amount of heating to the compressor to be constant upon restrained energization of the compressor motor, and to provide an air conditioner, a heat pump water heater, a refrigerator, and a freezer which comprise the heat pump device. A heat pump device is configured such that, while the compressor is in operation standby, a high frequency voltage synchronized to a carrier signal is supplied to a compressor motor for restrained energization of the compressor motor. Detected values corresponding to one cycle of the high frequency energization cycle are restored from a phase-to-phase voltage, a phase voltage, or a phase current of the compressor motor for a plurality of cycles of high frequency energization, and control is performed so that the power value calculated using the restored detected values corresponding to one cycle of the high frequency energization cycle matches the heating power command necessary to discharge liquid refrigerant accumulating in the compressor to the exterior of the compressor.
Inventors:
HATAKEYAMA KAZUNORI (JP)
KAMIYA SHOTA (JP)
YUASA KENTA (JP)
MATSUSHITA SHINYA (JP)
KUSUBE SHINSAKU (JP)
KAMIYA SHOTA (JP)
YUASA KENTA (JP)
MATSUSHITA SHINYA (JP)
KUSUBE SHINSAKU (JP)
Application Number:
PCT/JP2013/064399
Publication Date:
November 27, 2014
Filing Date:
May 23, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F24F11/02; H02M7/48
Domestic Patent References:
| WO2012172684A1 | 2012-12-20 | |||
| WO2012081078A1 | 2012-06-21 | |||
| WO2011018863A1 | 2011-02-17 | |||
| WO2009028053A1 | 2009-03-05 | |||
| WO2009028053A1 | 2009-03-05 |
Foreign References:
| JP2012082996A | 2012-04-26 | |||
| JP2011061887A | 2011-03-24 | |||
| JP2011038689A | 2011-02-24 | |||
| JP2013019595A | 2013-01-31 | |||
| JP2011015452A | 2011-01-20 | |||
| JP2004271167A | 2004-09-30 | |||
| JP2012082996A | 2012-04-26 | |||
| JP2012225767A | 2012-11-15 |
Other References:
See also references of EP 3001121A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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