HEAT PUMP DEVICE, AND AIR CONDITIONER, HEAT PUMP/HOT-WATER SUPPLY MACHINE, REFRIGERATOR, AND FREEZER EQUIPPED WITH SAME

Title:

HEAT PUMP DEVICE, AND AIR CONDITIONER, HEAT PUMP/HOT-WATER SUPPLY MACHINE, REFRIGERATOR, AND FREEZER EQUIPPED WITH SAME

Document Type and Number:

WIPO Patent Application WO/2013/088541

Kind Code:

A1

Abstract:

The objective of the present invention is to provide a heat pump device with which the compressor is heated efficiently in accordance with the required amount of heating, thereby reliably preventing the accumulation of refrigerant in the interior of the compressor and reducing standby power consumption. In addition, the objective is to provide an air conditioner, a heat pump/hot-water supply machine, a refrigerator, and a freezer equipped with this heat pump device. An inverter control unit (10) is equipped with a constraint energization control unit (12), which determines whether heating of a compressor (1) is required on the basis of the amount of refrigerant remaining in the compressor (1) during the standby operation of the compressor (1), and which, when it is determined that heating of the compressor (1) is required, selects either a direct current energization wherein direct current voltage is supplied to a motor (8) or a high-frequency energization wherein a high-frequency voltage that is higher than during normal operation is supplied to the motor (8), in response to the amount of refrigerant remaining in the compressor, with the constraint energization control unit then outputting a constraint energization command for executing constraint energization of the motor (8). The inverter control unit also is equipped with a drive signal generation unit (13) that generates a drive signal on the basis of the constraint energization command.

Inventors:

HATAKEYAMA KAZUNORI (JP)
KAMIYA SYOTA (JP)
YUASA KENTA (JP)
MATSUSHITA SHINYA (JP)
KUSUBE SHINSAKU (JP)
MAKINO TSUTOMU (JP)

Application Number:

PCT/JP2011/078973

Publication Date:

June 20, 2013

Filing Date:

December 14, 2011

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
HATAKEYAMA KAZUNORI (JP)
KAMIYA SYOTA (JP)
YUASA KENTA (JP)
MATSUSHITA SHINYA (JP)
KUSUBE SHINSAKU (JP)
MAKINO TSUTOMU (JP)

International Classes:

F25B1/00; F24F11/02

Domestic Patent References:

WO2011074145A1

2011-06-23

Foreign References:

JP2010210103A	2010-09-24
JPH0534024A	1993-02-09
JPH05288411A	1993-11-02
JP2011038689A	2011-02-24
JP2011078296A	2011-04-14
JP2011024377A	2011-02-03
JPS6191445A	1986-05-09
JP2007166766A	2007-06-28

Other References: