Title:
空気調和装置
Document Type and Number:
Japanese Patent JP7406124
Kind Code:
B2
Abstract:
To continue cooling operation by suitable cooling performance when a heat load of an object space of cooling becomes low, and to prevent the deterioration of operation efficiency.SOLUTION: An air-conditioner 1 is equipped with an indoor heat exchanger 21, a first outdoor heat exchanger 33a, a second outdoor heat exchanger 33b, a compressor 31, a three-way switch valve 32b, and a control portion. The three-way switch valve 32b switches a first state in which a refrigerant flows through the compressor 31, the first outdoor heat exchanger 33a, the second outdoor heat exchanger 33b, and the indoor heat exchanger 21 in this order, and a second state in which the refrigerant flows through the compressor 31, the first outdoor heat exchanger 33a, the indoor heat exchanger 21, the compressor 31, the first outdoor heat exchanger 33a, and the second outdoor heat exchanger 33b in this order. The control portion, when a first condition is satisfied if all indoor units 20 perform cooling operation, performs a first control which switches a channel of the refrigerant from the first state to the second state to decrease a flow rate of the refrigerant toward the indoor unit 20.SELECTED DRAWING: Figure 1
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Inventors:
Takehiro Naoi
Yuta Fukuyama
Takaya Nakanishi
Ryuta Oura
Hideyuki Nakagawa
Yuta Fukuyama
Takaya Nakanishi
Ryuta Oura
Hideyuki Nakagawa
Application Number:
JP2021079358A
Publication Date:
December 27, 2023
Filing Date:
May 07, 2021
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F24F11/83; F25B1/00; F25B13/00
Domestic Patent References:
| JP2018091540A | ||||
| JP5099525A | ||||
| JP3007858A | ||||
| JP2003254583A | ||||
| JP2015102252A | ||||
| JP2014016097A |
Foreign References:
| WO2020208776A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Shinju Global IP