REFRIGERATION DEVICE FOR TRANSPORTATION

According to the present disclosure, in a container refrigeration apparatus configured to cool the inside of a container, the accuracy of determination of occurrence of a lock abnormality and a connection abnormality of a motor is increased, and erroneous detection of the motor abnormalities is redu...

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Bibliographic Details
Main Authors SATOU, KIICHIROU, NAKANO, MASATAKA, UENO, AKITOSHI
Format Patent
LanguageEnglish
French
German
Published 04.06.2014
Subjects
BLASTING
COLD ROOMS
COMBINED HEATING AND REFRIGERATION SYSTEMS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
HEAT PUMP SYSTEMS
HEATING
ICE-BOXES
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
REFRIGERATION OR COOLING
REFRIGERATORS
WEAPONS
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Summary:According to the present disclosure, in a container refrigeration apparatus configured to cool the inside of a container, the accuracy of determination of occurrence of a lock abnormality and a connection abnormality of a motor is increased, and erroneous detection of the motor abnormalities is reduced or prevented. The container refrigeration apparatus of the present disclosure includes an abnormality determinator (44) configured to compare a value for current flowing through an in-compartment motor (1) with a preset current threshold to determine occurrence of the motor abnormalities of the in-compartment motor (1), and a threshold changer (45) configured to change the current threshold of the abnormality determinator (44) in accordance with a supply voltage for each supply frequency of a power supply (42) configured to supply power to the in-compartment motor (1).
Bibliography:Application Number: EP20120819521