Title:
HEAT PUMP DEVICE, HEAT PUMP SYSTEM, AIR CONDITIONER, AND REFRIGERATING MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/149162
Kind Code:
A1
Abstract:
The present invention comprises: a compressor (1) that has a compression mechanism (7) for compressing a refrigerant and a motor (8) for driving the compression mechanism (7); an inverter (103) that applies a desired voltage to the motor (8); an inverter control unit (104) that controls the inverter (103); a high-pressure switch (107) that operates when the discharge pressure of the compressor (1) becomes a predetermined pressure or more; and a thermal protector (108) that operates when the temperature of the compressor (1) becomes a predetermined temperature or higher. The high-pressure switch (107) and thermal protector (108) are provided on power supply wiring that supplies power to the inverter (103). When the discharge pressure of the compressor (1) becomes the predetermined pressure or more, the high-pressure switch (107) is opened, or when the temperature of the compressor (1) becomes the predetermined temperature or higher, the thermal protector (108) is opened, and the power supply to the inverter (103) is cut off.
Inventors:
YAMAKAWA TAKASHI (JP)
ONISHI TAKAMASA (JP)
ONISHI TAKAMASA (JP)
Application Number:
PCT/JP2020/001988
Publication Date:
July 29, 2021
Filing Date:
January 21, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02; F04B49/10; F25B1/00
Foreign References:
| JP2014173486A | 2014-09-22 | |||
| JP2010181110A | 2010-08-19 | |||
| JP2004286238A | 2004-10-14 | |||
| JPH0914805A | 1997-01-17 | |||
| JPH0719679A | 1995-01-20 | |||
| JP2015163013A | 2015-09-07 | |||
| JPH01131853A | 1989-05-24 | |||
| JP2017161195A | 2017-09-14 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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