HEAT PUMP AIR CONDITIONING SYSTEM AND CONTROL METHOD

WIPO Patent Application WO/2019/144421

A1

A heat pump air conditioning system and a control method. The heat pump air conditioning system comprises: a compressor (1); an indoor unit heat exchanger (2); an outdoor unit heat exchanger (3); a throttling device (4); a refrigerant circulation loop for connecting the compressor (1), the indoor unit heat exchanger (2), the outdoor unit heat exchanger (3), and the throttling device (4) in series; a heat storage module (5) disposed in the refrigerant circulation loop to absorb, when heat storage is needed, heat from a refrigerant in the refrigerant circulation loop so as to store heat, and to heat the refrigerant in the refrigerant circulation loop when the outdoor unit heat exchanger (3) needs to be defrosted. The heat pump air conditioning system can store excess heat of the system for defrosting when the indoor heat load is low and release the heat for defrosting by means of the heat storage module during a defrosting process while continuing supplying heat to a room to keep the temperature of the room unchanged, thereby improving the comfort of the room.

DONG MINGZHU (CN)
TAN JIANMING (CN)
XIA GUANGHUI (CN)
LIANG BO (CN)
WANG XIANLIN (CN)
LAI XIAOCHENG (CN)
WU JUNHONG (CN)
PENG GUANGQIAN (CN)
GAO XU (CN)
CHEN ZHIWEI (CN)
YU BO (CN)
CHE WEN (CN)
LI XIAOYU (CN)

PCT/CN2018/074637

August 01, 2019

January 31, 2018

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GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)

F25B47/02; F25B41/20

CN105485766A	2016-04-13
CN204063308U	2014-12-31
CN104567074A	2015-04-29
CN104061705A	2014-09-24
CN103383157A	2013-11-06
CN104567075A	2015-04-29
CN103574798A	2014-02-12
US3822564A	1974-07-09
US3922875A	1975-12-02

See also references of EP 3745052A4

BEIJING XURUN LAW FIRM (CN)

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