Title:
HEAT PUMP SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/141029
Kind Code:
A1
Abstract:
A heat pump system and a control method therefor. The heat pump system comprises a compressor (1), a first four-way valve (2), a second four-way valve (8), an outdoor heat exchanger (6) and an indoor heat exchanger (6); the outdoor heat exchanger (3) comprises a first heat exchange portion and a second heat exchange portion, a flow path switching device being provided between the first heat exchange portion and the second heat exchange portion, being used for opening or closing communication between the first heat exchange portion and the second heat exchange portion; the second four-way valve (8) is used to enable a high temperature refrigerant to be introduced into the first heat exchange portion in heating mode so that the heat pump system enters heating and deicing mode. The heat pump system may conveniently achieve a low-temperature heating and deicing function so that a water drainage hole at a lower side of the outdoor heat exchanger drains water normally; at the same time, in normal cooling and heating mode, the branch of the outdoor heat exchanger will not be occupied so as to ensure a normal heat exchange area and heat exchange capabilities.
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Inventors:
FENG TAO (CN)
LI LIMIN (CN)
LI HUAJIE (CN)
HUANG WENHAO (CN)
CAO PENG (CN)
JIN MENGMENG (CN)
ZHOU CHAO (CN)
ZHU SHIQIANG (CN)
LI LIMIN (CN)
LI HUAJIE (CN)
HUANG WENHAO (CN)
CAO PENG (CN)
JIN MENGMENG (CN)
ZHOU CHAO (CN)
ZHU SHIQIANG (CN)
Application Number:
PCT/CN2018/121048
Publication Date:
July 25, 2019
Filing Date:
December 14, 2018
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F25B47/02; F25B13/00; F25B41/20; F25B41/34; F25B41/37; F25B41/40
Foreign References:
| CN108362027A | 2018-08-03 | |||
| CN208186896U | 2018-12-04 | |||
| CN205784048U | 2016-12-07 | |||
| CN103743156A | 2014-04-23 | |||
| US20050284174A1 | 2005-12-29 | |||
| CN103363710A | 2013-10-23 | |||
| JP2014085098A | 2014-05-12 | |||
| CN201810042733A | 2018-01-17 |
Other References:
See also references of EP 3722709A4
Attorney, Agent or Firm:
BEIJING XURUN LAW FIRM (CN)
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