Title:
CONSTANT-TEMPERATURE AND CONSTANT-HUMIDITY INDOOR UNIT, CONSTANT-TEMPERATURE AND CONSTANT-HUMIDITY SYSTEM, AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/192210
Kind Code:
A1
Abstract:
A constant-temperature and constant-humidity indoor unit, a constant-temperature and constant-humidity system, and a control method therefor, wherein the constant-temperature and constant-humidity indoor unit comprising: a fan (1); a first evaporator (2); a second evaporator (3), wherein the second evaporator (3) and the first evaporator (2) are arranged in parallel in a refrigerant compression cycle of the constant-temperature and constant-humidity indoor unit; and a first electronic expansion valve (4) that is disposed in the refrigerant compression cycle of the constant-temperature and constant-humidity indoor unit and is arranged in series with the first evaporator (2), wherein the first electronic expansion valve (4) is used for controlling the flow rate of a refrigerant in the first evaporator (2). By means of arranging two evaporators in parallel, wherein the first electronic expansion valve (4) is fully closed and de-humidification is performed by the second evaporator (3), a frequency increase of a compressor (9) is avoided, resulting in an increase in cooling capacity, thus effectively avoiding circumstances in which high-power electric auxiliary heat is turned on and energy is not conserved.
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Inventors:
ZHOU ZHIBIN (CN)
FENG ZHIWEN (CN)
CHEN BOQIANG (CN)
DAI YONGFU (CN)
YOU WENCHAO (CN)
YANG RUI (CN)
ZHOU YACHEN (CN)
FENG ZHIWEN (CN)
CHEN BOQIANG (CN)
DAI YONGFU (CN)
YOU WENCHAO (CN)
YANG RUI (CN)
ZHOU YACHEN (CN)
Application Number:
PCT/CN2018/121530
Publication Date:
October 10, 2019
Filing Date:
December 17, 2018
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F24F1/00; F24F3/14; F24F11/64; F24F11/89; F24F13/30; F25B41/325; F24F110/10; F24F110/20
Foreign References:
| CN108518736A | 2018-09-11 | |||
| CN208075149U | 2018-11-09 | |||
| CN107024041A | 2017-08-08 | |||
| CN103562657A | 2014-02-05 | |||
| CN206410268U | 2017-08-15 | |||
| EP2787293A1 | 2014-10-08 | |||
| US20120272669A1 | 2012-11-01 |
Attorney, Agent or Firm:
BEIJING XURUN LAW FIRM (CN)
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