Title:
CONTROL METHOD OF REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/098780
Kind Code:
A1
Abstract:
The present invention provides a control method of a refrigeration device. A refrigeration system further comprises a heat exchanger; the heat exchanger comprises a high-temperature heat exchange tube and a low-temperature heat exchange tube which are provided in parallel and exchange heat with each other; an inlet of the high-temperature heat exchange tube is connected to a condenser, and an outlet of the high-temperature heat exchange tube is connected to a capillary tube; an inlet of the low-temperature heat exchange tube is connected to an evaporator, and an outlet of the low-temperature heat exchange tube is connected to an air return port of a variable-frequency compressor. The control method comprises: during power-on, controlling a condensation fan to be started, controlling the variable-frequency compressor to be started at a frequency F1, and monitoring an air discharging temperature Tp at an air discharging port of the variable-frequency compressor in real time; within a preset time period t0, determining whether Tp reaches a set threshold Tp0; if not, determining whether a temperature Tg of the outlet of the high-temperature heat exchange tube is reduced to a preset temperature Tg0; and if not, controlling a frequency of the variable-frequency compressor to be increased by ΔF.
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Inventors:
LI DAWEI (CN)
LI YANMEI (CN)
ZHANG SHUFENG (CN)
ZHANG QIANG (CN)
LI YANMEI (CN)
ZHANG SHUFENG (CN)
ZHANG QIANG (CN)
Application Number:
PCT/CN2022/135773
Publication Date:
June 08, 2023
Filing Date:
December 01, 2022
Export Citation:
Assignee:
QINGDAO HAIER SPECIAL FREEZER (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
F25B40/06; F25B49/02
Foreign References:
| JP2004061061A | 2004-02-26 | |||
| CN112484330A | 2021-03-12 | |||
| CN111623547A | 2020-09-04 | |||
| CN111706997A | 2020-09-25 | |||
| CN112212532A | 2021-01-12 | |||
| DE102004034869A1 | 2005-07-14 | |||
| EP1260776A1 | 2002-11-27 | |||
| JP2004293815A | 2004-10-21 |
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
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