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Title:
COLD SHOW CASE
Document Type and Number:
Japanese Patent JPH10253234
Kind Code:
A
Abstract:

To suppress the temperature rise after an alarm is generated by a warning device activated by abnormally high temperature inside a storage room and putting off lamps in a system provided with the controlling device that controls a refrigerating device based on temperature inside the storage room and the warning device.

A microcomputer operates a blower 12 during a refrigerating operation and opens a solenoid valve at upper limit temperature and closes it at lower limit temperature based on the output of a control temperature sensor 32. By opening the solenoid valve, refrigerant flowed in a condenser 11 performs refrigerating effect. In case of the refrigerating effect is not performed by the failure of such as the solenoid valve and the temperature of the discharged cold air reaches the temperature of high temperature alarm, the warning device is activated and warns an operator abnormally high temperature inside a storage room 6. Further, the brightness of fluorescent lamps is dropped by controlling the frequency of power supplied to fluorescent lamps 23. Therefore, the thermal load from the fluorescent lamps 23 to the inside of the storage room 6 is decreased and further temperature rise is suppressed.


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Inventors:
OTANI MEGUMI
TAKEZAWA MINORU
WATANABE KUNIHIKO
Application Number:
JP8202897A
Publication Date:
September 25, 1998
Filing Date:
March 14, 1997
Export Citation:
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Assignee:
SANYO ELECTRIC CO
International Classes:
F25D23/00; F25D11/00; (IPC1-7): F25D23/00; F25D11/00
Attorney, Agent or Firm:
Amasa Kei