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Title:
AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/234860
Kind Code:
A1
Abstract:
The present invention addresses the problem that if after a cooling operation or a heating operation is stopped, the cooling operation or the heating operation is started from a state where a flow rate adjustment mechanism is closed, it takes time for the opening degree of the flow rate adjustment mechanism to become suitable, and operation efficiency is reduced. An air-conditioning device according to the present invention comprises: an indoor unit; an outdoor unit; an outdoor expansion valve and an indoor expansion valve; and a control unit. The control unit performs first control and second control. The first control is performed such that a cooling operation or a heating operation is stopped when a first condition is satisfied while the cooling operation or the heating operation is being performed, and then the cooling operation or the heating operation is started when a second condition is satisfied. The first condition indicates that a target space has a low heat load. The second condition relates to the heat load of the target space. The second control is performed such that when the cooling operation or the heating operation is started by the first control, the opening degrees of the outdoor expansion valve and the indoor expansion valve become greater than the opening degrees at a point in time when the first condition is satisfied.

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Inventors:
NAOI TAKEHIRO
FUKUYAMA YUTA
NAKANISHI TAKAYA
OHURA RYUUTA
Application Number:
PCT/JP2022/019573
Publication Date:
November 10, 2022
Filing Date:
May 06, 2022
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F24F11/84; F24F11/86; F25B1/00; F25B13/00
Foreign References:
JPH10238867A1998-09-08
JP2006118764A2006-05-11
JP2016138711A2016-08-04
JP2018128158A2018-08-16
JP2008286464A2008-11-27
JPH04251158A1992-09-07
JP2007178051A2007-07-12
JPH023093Y21990-01-24
JP2020051700A2020-04-02
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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