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Title:
MULTI-CONNECTED AIR CONDITIONING SYSTEM NOISE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/104964
Kind Code:
A1
Abstract:
A multi-connected air conditioning system noise control method, comprising the following steps: S100, when an operating mode of a multi-connected air conditioning system is a heating mode, obtaining an operating time of the heating mode; S200, when the operating time of the heating mode is greater than a time threshold value, adjusting opening degrees of expansion valves corresponding to a preset number of indoor units among indoor units in a standby state to a first target opening degree, and simultaneously controlling expansion valves corresponding to the remainder of the indoor units to open intermittently. The expansion valves corresponding to the preset number of indoor units maintain the first target opening degree so as to receive a refrigerant, and the remainder of the indoor units open intermittently so as to reduce or eliminate noise, thereby improving a noise control effect.

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Inventors:
LU, Dahai (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
WANG, Haisheng (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
CUI, Guodong (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
ZHANG, Ming (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
ZHANG, Zhongxiao (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
DIAO, Hongfu (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
GAO, Qiang (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
JIAO, Hua (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
CHEN, Xu (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
Application Number:
CN2018/088272
Publication Date:
June 06, 2019
Filing Date:
May 24, 2018
Export Citation:
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Assignee:
QINGDAO HAIER AIR-CONDITIONING ELECTRONIC CO., LTD (Haier Industrial Park, No.1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
International Classes:
F24F11/84; F25B41/06; F25B49/02
Foreign References:
CN104067064A2014-09-24
CN107131617A2017-09-05
CN102368009A2012-03-07
CN106568136A2017-04-19
CN1643304A2005-07-20
CN104501303A2015-04-08
JPH04190056A1992-07-08
JP2007315750A2007-12-06
Attorney, Agent or Firm:
HANRAY LAW FIRM (712A, Century Square 99 Wangfujing Street,Dongcheng District, Beijing 6, 100006, CN)
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