Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2023/119506
Kind Code:
A1
Abstract:
The air conditioner 1 according to an embodiment comprises: an outdoor unit 2; an indoor unit 3 connected to the outdoor unit 2 by refrigerant piping; a shutoff unit 4 capable of shutting off the flow of refrigerant in the refrigerant piping between the outdoor unit 2 and the indoor unit 3; and a refrigerant leak detector 30a that detects a refrigerant leak. The shutoff unit 4 is provided with a shutoff valve 41 that shuts off the flow of the refrigerant in the refrigerant piping, and a valve control unit 42 serving as a control unit that controls the operation of the shutoff valve 41. The shutoff valve 41 is an electric valve driven by a motor. If a refrigerant leak is detected by the refrigerant leak detector 30a, the valve control unit 42 controls the shutoff valve 41 to be closed at an operation speed (v1), and then controls the shutoff valve 41 to be retightened at an operation speed (v2) slower than the operation speed (v1).
Inventors:
IUCHI AKIRA (JP)
Application Number:
PCT/JP2021/047635
Publication Date:
June 29, 2023
Filing Date:
December 22, 2021
Export Citation:
Assignee:
TOSHIBA CARRIER CORP (JP)
International Classes:
F25B49/02
Domestic Patent References:
| WO2021199163A1 | 2021-10-07 |
Foreign References:
| JP2018036029A | 2018-03-08 | |||
| JPH06328330A | 1994-11-29 | |||
| JPS63178985A | 1988-07-23 | |||
| JP2021085643A | 2021-06-03 |
Attorney, Agent or Firm:
SATO INTERNATIONAL PATENT FIRM (JP)
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