Title:
Heat pump equipment, the air harmony machine provided with it, a heat pump hot-water supply machine, a refrigerator, and a freezer
Document Type and Number:
Japanese Patent JP5937619
Kind Code:
B2
Abstract:
A heat pump device surely prevents a coolant from being held up in a compressor and attains a reduction in standby power, by efficiently carrying out heating to the compressor according to a necessary heating amount. An air conditioner, a heat pump water heater, a refrigerator, and a freezing machine including the heat pump device are provided. An inverter control unit 10 includes a constraint-energization control unit 12 that, during operation standby of the compressor 1, determines whether heating to the compressor 1 is necessary, on the basis of a coolant sleeping amount in the compressor 1, and, when having determined that heating to the compressor 1 is necessary, selects, according to the coolant sleeping amount, any one of direct-current energization for supplying a direct-current voltage to the motor 8 and high-frequency energization for supplying a high-frequency voltage having a frequency higher than a frequency during a normal operation to the motor 8, so as to output a constraint energization command for carrying out constraint energization of the motor; and a driving-signal generating unit 13 that generates a driving signal on the basis of the constraint energization command.
More Like This:
| JPH07139825 | FREEZER DEVICE |
| JP4042487 | Vehicle air conditioner |
Inventors:
Hatakeyama Kazunori
Shota Kamiya
Kenta Yuasa
Shinya Matsushita
Shinsaku Kusube
Tsutomu Makino
Shota Kamiya
Kenta Yuasa
Shinya Matsushita
Shinsaku Kusube
Tsutomu Makino
Application Number:
JP2013549013A
Publication Date:
June 22, 2016
Filing Date:
December 14, 2011
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F25B1/00; F24F11/02; F25B49/02; F25D11/00
Domestic Patent References:
| JP2008209036A | ||||
| JP2010210103A | ||||
| JP5034024A | ||||
| JP5288411A | ||||
| JP2011078296A | ||||
| JP2011024377A | ||||
| JP2011038689A | ||||
| JP2011102674A | ||||
| JP2004271167A |
Foreign References:
| WO2011074145A1 |
Attorney, Agent or Firm:
Jun Takamura