Title:
保冷庫
Document Type and Number:
Japanese Patent JP7430158
Kind Code:
B2
Abstract:
To prevent the damage of a compressor caused by the lack of a lubricant by securing a minimum drive time with respect to each freezing cycle even if cooling the inside of a cooling box by using two-system freezing cycles at a refrigeration operation.SOLUTION: Two-system freezing cycles 11, 12 are constituted of a main freezing cycle 11 for preferentially starting drive at a refrigeration operation, and a sub-freezing cycle 12 for additionally starting the drive when a prescribed high-load condition is satisfied during the drive of the main freezing cycle 11. When an in-box temperature D is lowered to a sub-OFF temperature (D2off) based on a set temperature D0 during the drive of both the freezing cycles 11, 12, the sub-freezing cycle 12 is immediately stopped at a freezing operation, and at a refrigeration operation, the sub-freezing cycle 12 is stopped after the lapse of a prescribed extension time TE.SELECTED DRAWING: Figure 1
Inventors:
Shinji Kikuno
Application Number:
JP2021133182A
Publication Date:
February 09, 2024
Filing Date:
August 18, 2021
Export Citation:
Assignee:
Fukushima Galilei Co., Ltd.
International Classes:
F25D19/04; F25B1/00; F25D11/00
Domestic Patent References:
| JP2019078444A | ||||
| JP2009097781A | ||||
| JP10009689A |
Foreign References:
| US20200208898 | ||||
| KR1020100078798A |
Attorney, Agent or Firm:
Satoshi Morimoto
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