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Title:
CONTROL METHOD OF REFRIGERATION AND FREEZING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/120172
Kind Code:
A1
Abstract:
Disclosed is a control method of a refrigeration and freezing device (1). The refrigeration and freezing device (1) comprises a cabinet (10) and a compressor compartment (100) provided on the rear of the cabinet (10) and at a lower part thereof, wherein a bottom condenser (103), a cooling fan (102), a compressor (101) and an air blower (104) are sequentially provided in the compressor chamber (100); and the cooling fan (102) is configured to propel air to flow from the bottom condenser (103) to the air blower (104). The control method comprises: acquiring the temperature of the bottom condenser (103) and the ambient temperature; when the temperature of the bottom condenser (103) is greater than the ambient temperature and the difference therebetween is greater than a pre-set first difference value, activating the air blower (104) to forcibly dissipate heat from the compressor compartment (100); and controlling the air blower (104) to stop when the temperature of the bottom condenser (103) drops until the difference between the temperature of the bottom condenser and the ambient temperature is less than a pre-set second difference value. According to the control method, when the bottom condenser (103) of the refrigeration and freezing device (1) cannot perform effective heat dissipation, the air blower (104) is activated to carry out active forced heat dissipation, thereby effectively accelerating the high-temperature air in flowing out of the compressor compartment (100) and preventing the compressor (101) or the bottom condenser (103) from malfunctioning due to an excessively high temperature.

Inventors:
HE, Shengtao (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
MIAO, Jianlin (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
LI, Chunyang (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
XU, Tong (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
Application Number:
CN2018/121516
Publication Date:
June 27, 2019
Filing Date:
December 17, 2018
Export Citation:
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Assignee:
QINGDAO HAIER CO., LTD. (Haier Industrial Park, No. 1 Haier Road Laoshan Distric, Qingdao Shandong 1, 266101, CN)
International Classes:
F25D29/00
Foreign References:
CN207778908U2018-08-28
CN207778904U2018-08-28
CN106196847A2016-12-07
CN106369349A2017-02-01
CN106766588A2017-05-31
CN103355997A2013-10-23
EP2685188A22014-01-15
Attorney, Agent or Firm:
WISEAST INTELLECTUAL PROPERTY LAW FIRM (Room 609, Building 1Yard 1, Shangdi 10th Street, Haidian District, Beijing 5, 100085, CN)
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