Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/035205
Kind Code:
A1
Abstract:
This air conditioning device, in which an outdoor unit provided with a compressor and an indoor unit provided with an expansion valve are connected through a refrigerant pipe, is provided with: a first opening/closing valve provided on a refrigerant inlet side of the indoor unit; a second opening/closing unit provided on a refrigerant outlet side of the indoor unit; a state detection means which detects the state, inside the refrigerant pipe, between the first opening/closing valve and the second opening/closing valve; and a control device which controls the first opening/closing valve and the second opening/closing valve. The control device detects a leak of the refrigerant between the first opening/closing valve and the second opening/closing valve on the basis of the state detected by the state detection means when the first opening/closing valve and the second opening/closing valve are closed.
Inventors:
KIKUCHI SHUNSUKE (JP)
NAKAGAWA MASAHIKO (JP)
NAKAGAWA MASAHIKO (JP)
Application Number:
PCT/JP2017/029584
Publication Date:
February 21, 2019
Filing Date:
August 18, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02
Domestic Patent References:
| WO2011141959A1 | 2011-11-17 | |||
| WO2014127842A1 | 2014-08-28 |
Foreign References:
| JP2017067396A | 2017-04-06 | |||
| US9335078B1 | 2016-05-10 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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