AIR CONDITIONING UNIT AND CONTROL METHOD THEREFOR

WIPO Patent Application WO/2021/228018

A1

An air conditioning unit and a control method therefor. By adjusting the conversion between a series connection structure and a parallel connection structure of a water-cooling heat exchanger, when the temperature of output water of the water-cooling heat exchanger is high, the water-cooling heat exchanger is configured such that when a first on-off valve (751), a second on-off valve (752), a third on-off valve (753) and a fourth on-off valve (754) are all closed, a plurality of heat exchange units are connected in series, and the heat exchange performance of the water-cooling heat exchanger is ensured by means of a long refrigerant channel and a long water flow channel; and when the temperature of output water of the water-cooling heat exchanger is low, the water-cooling heat exchanger is configured such that when the first on-off valve (751), the second on-off valve (752), the third on-off valve (753) and the fourth on-off valve (754) are all opened, the plurality of heat exchange units are connected in parallel, such that energy is saved on while the flow speed of water is increased. The method aims to solve the problem of it not being possible to take both heating efficiency and energy saving into consideration due to the fixed structure of a water-cooling heat exchanger in an existing air conditioning unit.

LI YINYIN (CN)
SONG QIANG (CN)
REN TAO (CN)
LIU JIANGBIN (CN)

PCT/CN2021/092650

November 18, 2021

May 10, 2021

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QINGDAO HAIER AIR CONDITIONING ELECTRONIC CO LTD (CN)
HAIER SMART HOME CO LTD (CN)

F25B13/00; F24F5/00; F25B41/20

CN112032884A	2020-12-04
CN101033866A	2007-09-12
CN107990584A	2018-05-04
CN109823138A	2019-05-31
JP2003343898A	2003-12-03

HANRAY LAW FIRM (CN)

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