Title:
COOLING DEVICE
Document Type and Number:
Japanese Patent JP2021127896
Kind Code:
A
Abstract:
To avoid abnormal pressure or breakage of a compressor by varying an opening degree of an electronic expansion valve at the time of a cooling operation according to a cooling load.SOLUTION: A cooling device comprises a valve opening control part 23 for cooling a storage 10 to a desired temperature condition by adjusting an opening degree of an electronic expansion valve 12 so that an inside temperature of the storage 10 approaches to a preset target temperature, and adjusting a flow rate of a refrigerant to an evaporator 13 arranged in the storage 10 in the case of a normal operation, and for stopping supply of the refrigerant to the evaporator 13 by closing the electronic expansion valve 12 in the case of a defrosting operation after the normal operation. The valve opening control part 23 adjusts the opening degree by setting the opening degree of the electron expansion valve 12 from a temperature of outside air, in which a compressor 15 for sucking the refrigerant from the evaporator 13 and compressing it is provided, and valve opening setting information 24b in the case of a cooling operation after the defrosting operation until the next normal operation.SELECTED DRAWING: Figure 1
Inventors:
FUJIWARA KENICHI
Application Number:
JP2020024481A
Publication Date:
September 02, 2021
Filing Date:
February 17, 2020
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
F25B1/00; A47F3/04; F25B47/02; F25D11/00
Attorney, Agent or Firm:
Sakai International Patent Office