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Title:
FREEZER APPARATUS, AND REFRIGERATING SYSTEM AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/220988
Kind Code:
A1
Abstract:
Disclosed are a freezer apparatus (1), and a refrigerating system (11) and a control method therefor, which belong to the field of refrigerating apparatuses. The refrigerating system (11) comprises a refrigerant circulation loop formed by connecting a condenser (111), an evaporator (112), a compressor (15) and a throttling device (14), and further comprises a heat regenerator (16). The control method comprises: obtaining a suction temperature of the compressor (15) in a running process of the refrigerating system (11); determining a refrigerant temperature and a refrigerant supercooling degree at an outlet of the condenser (111); and controlling and adjusting, according to the suction temperature of the compressor (15) and the supercooling degree at the refrigerant outlet of the condenser (111), a flow rate opening degree of the throttling device (14). By means of the control method for the refrigerating system (11), the difficulties in mounting and maintaining a sensor due to arrangement of the sensor on a freezer evaporator arranged in a foaming layer can be prevented, thereby effectively simplifying the mounting and maintenance of the sensor, and accurate adjustment and control over the opening degree of a throttling device, such as an electronic expansion valve, can still be guaranteed.

Inventors:
ZHAO XIANGHUI (CN)
LI JING (CN)
YANG LISHENG (CN)
LIU YUSEN (CN)
Application Number:
PCT/CN2020/084633
Publication Date:
November 05, 2020
Filing Date:
April 14, 2020
Export Citation:
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Assignee:
QINGDAO HAIER SMART TECH R & D CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F25B41/06; F25B49/02
Domestic Patent References:
WO2011092742A12011-08-04
Foreign References:
CN107421176A2017-12-01
CN109253524A2019-01-22
CN106595145A2017-04-26
CN105571075A2016-05-11
JPH02195164A1990-08-01
JPH02110268A1990-04-23
Attorney, Agent or Firm:
BEIJING KANGSHENG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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