Moistureless refrigeration device for mobile cooling container

Abstract

A moistureless cooling device used in a mobile refrigerator is disclosed to include a thermal-insulation container having a storage chamber defined therein for storing low temperature substances and an opening in communication with the storage chamber and covered by a container cover, an air heat exchanger unit having a flow-guide conduit extending through and isolated from the storage chamber, and an air supply unit installed in one of the air inlet and air outlet of the flow-guide conduit for delivering outside air through the flow-guide conduit to transfer low temperature from the low temperature substances in the storage chamber of the thermal-insulation container to an enclosed space in the mobile refrigerator.

What is claimed is: 
     
         1 . A moistureless cooling device for a mobile refrigerator, comprising:
 a thermal-insulation container comprising a storage chamber adapted for storing low temperature substances, a heat-insulation container wall surrounding said storage chamber, an opening in communication with said storage chamber, and a container cover covering said opening;   an air heat exchanger unit comprising a flow-guide conduit extending through and isolated from said storage chamber, said flow-guide conduit having an air inlet and an air outlet respectively disposed outside said storage chamber of said thermal-insulation container; and   an air supply unit installed in one of the air inlet and air outlet of said flow-guide conduit of said heat exchanger unit for delivering outside air through said flow-guide conduit to transfer low temperature from the low temperature substances stored in said storage chamber of said thermal-insulation container to an enclosed space in said mobile refrigerator.   
     
     
         2 . The moistureless cooling device as claimed in  claim 1 , wherein said flow-guide conduit is a coil conduit defining therein a detour flow passage. 
     
     
         3 . The moistureless cooling device as claimed in  claim 1 , wherein said heat exchanger unit comprises a first thermal conduction structure in contact with the metal flow-guide conduit and disposed in said storage chamber of said thermal-insulation container. 
     
     
         4 . The moistureless cooling device as claimed in  claim 3 , wherein said first thermal conduction structure comprises a plurality of radiation fins extending from the periphery of said flow-guide conduit and suspending in said storage chamber of said thermal-insulation container. 
     
     
         5 . The moistureless cooling device as claimed in  claim 1 , wherein said heat exchanger unit comprises a second thermal conduction structure disposed on the inner periphery of said flow-guide conduit. 
     
     
         6 . The moistureless cooling device as claimed in  claim 5 , wherein said second thermal conduction structure comprises a plurality of radiation fins extending from the inner peripheral wall of said flow-guide conduit and suspending inside said flow-guide conduit. 
     
     
         7 . The moistureless cooling device as claimed in  claim 5 , wherein said second thermal conduction structure further comprises at least one thermal conduction tube arranged in said flow-guide conduit, each said thermal conduction tube having at least one of two opposite ends thereof kept in communication with said storage chamber for receiving the supplied low temperature substances. 
     
     
         8 . The moistureless cooling device as claimed in  claim 7 , wherein said second thermal conduction structure further comprises a plurality of radiation fins extending from the periphery of each said thermal conduction tube and suspending in said flow-guide conduit. 
     
     
         9 . The moistureless cooling device as claimed in  claim 1 , wherein said heat-insulation container wall of said thermal-insulation container comprises a thermal insulation foam layer stuffed therein. 
     
     
         10 . The moistureless cooling device as claimed in  claim 1 , wherein said heat-insulation container wall of said thermal-insulation container has an internal vacuum insulation space defined therein.