The invention discloses a refrigerated truck and a refrigerating system. The refrigerating system comprises a compressor, an evaporator, a throttling part, a condenser and a defrosting pipe, wherein an electromagnetic valve is arranged between an output end of the compressor and the defrosting pipe; the other end of the defrosting pipe is connected with the evaporator and the throttling part; the evaporator is connected with an input end of the compressor; and the condenser is connected with the output end of the compressor. The output end of the compressor is divided into two paths; one path is connected with the condenser; and the other path is connected with the defrosting pipe through the electromagnetic valve. The electromagnetic valve can be used for switching a refrigerating mode and a defrosting mode of the system; when the electromagnetic valve is switched on, the compressor is connected with the defrosting pipe to perform defrosting operation; and when the electromagnetic is switched off, the system is in the refrigerating mode and the compressor is connected with the condenser. During defrosting, no refrigerant flows through the condenser; and during refrigerating, no refrigerant flows through the defrosting pipe. Therefore, shutdown operation is not needed in the mode switching process and the defrosting period can be reduced so that the stability of the temperature in a carriage of the refrigerated truck is guaranteed.
Refrigerated truck and refrigerating system
2015-12-02
Patent
Elektronische Ressource
Englisch
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |
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