Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/202465
Kind Code:
A1
Abstract:
This air conditioner is provided with: a first indoor unit that constitutes a single refrigeration cycle; and an outdoor unit that is connected to the first indoor unit via a first refrigerant pipe and constitutes the single refrigeration cycle. The first indoor unit is provided with a first refrigerant leakage sensor that detects a leakage and a leakage concentration of a refrigerant flowing through the first refrigerant pipe. The outdoor unit is provided with: a compressor for compressing the refrigerant flowing through the first refrigerant pipe; a first flow rate adjusting valve for adjusting the flow rate of the refrigerant flowing through the first refrigerant pipe; and a control unit that, when the first refrigerant leakage sensor detects the leakage of the refrigerant flowing through the first refrigerant pipe, stops the compressor, fully closes the first flow rate adjusting valve and stops the compressor, and changes, to a speed slower than the opening speed of the first flow rate adjusting valve before the leakage of the refrigerant was detected, the opening speed of the first flow rate adjusting valve after the first flow rate adjusting valve is fully closed.
Inventors:
YAMAGUCHI KOJI (JP)
Application Number:
PCT/JP2019/014638
Publication Date:
October 08, 2020
Filing Date:
April 02, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; F24F11/36; F25B49/02
Domestic Patent References:
| WO2010050007A1 | 2010-05-06 |
Foreign References:
| JP3477184B2 | 2003-12-10 | |||
| JP2013178073A | 2013-09-09 | |||
| CN105547430A | 2016-05-04 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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