The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Jun. 20, 2012
Shota Kamiya, Tokyo, JP;
Kazunori Hatakeyama, Tokyo, JP;
Kenta Yuasa, Tokyo, JP;
Shinya Matsushita, Tokyo, JP;
Shinsaku Kusube, Tokyo, JP;
Tsutomu Makino, Aichi, JP;
Shota Kamiya, Tokyo, JP;
Kazunori Hatakeyama, Tokyo, JP;
Kenta Yuasa, Tokyo, JP;
Shinya Matsushita, Tokyo, JP;
Shinsaku Kusube, Tokyo, JP;
Tsutomu Makino, Aichi, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A heat pump device includes: a compressor including a compression mechanism compressing a refrigerant and a motor driving the compression mechanism; an inverter unit applying a voltage for driving the motor; an inverter control unit generating a driving signal for driving the inverter unit; and temperature sensors detecting temperatures of the compressor, wherein the inverter control unit includes a normal operation mode in which a refrigerant is compressed by performing a normal operation of the compressor and a heating operation mode in which a heating operation of the compressor is performed by applying, to the motor, a high-frequency voltage, and in the heating operation mode, the inverter control unit determines an amplitude and a phase of a voltage command for generating the high-frequency voltage on a basis of a temperatures detected by the temperature sensors and a necessary amount of heat specified in advance.