Title:
AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/119105
Kind Code:
A1
Abstract:
An air-conditioning device whereby it is possible to take measures against leakage of a refrigerant without the need for an additional component. This air-conditioning device is equipped with: an outdoor unit which has an outdoor heat exchanger and a compressor; a relay which has a relay throttle device, a first opening-closing valve, and a second opening-closing valve; and indoor units which each have an indoor heat exchanger and perform cooling and heating operations. The air-conditioning device configures a refrigerant circuit which circulates a refrigerant therethrough. During a heating operation of the indoor units, the first opening-closing valve and the relay throttle device are brought into an open position, thereby circulating the refrigerant. During a cooling operation of the indoor units, the second opening-closing valve and the relay throttle device are brought into an open position, thereby circulating the refrigerant. When the refrigerant is leaking, the first opening-closing valve, the second opening-closing valve, and the relay throttle device are brought into a closed state, thereby sealing the refrigerant in the refrigerant circuit which is configured from the first opening-closing valve, the second opening-closing valve, the compressor, the outdoor heat exchanger, and the relay throttle device within the refrigerant circuit.
Inventors:
BABA YOHEI (JP)
Application Number:
PCT/JP2016/050379
Publication Date:
July 13, 2017
Filing Date:
January 07, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02; F24F11/02; F25B1/00; F25B13/00
Domestic Patent References:
| WO2015140994A1 | 2015-09-24 | |||
| WO2015072342A1 | 2015-05-21 |
Foreign References:
| JP2002061996A | 2002-02-28 | |||
| JP2015209979A | 2015-11-24 | |||
| JP2011021838A | 2011-02-03 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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