Method of manufacturing low-temperature storage, and low-temperature storage

Abstract

An object is to provide a method of manufacturing a low-temperature storage in which an insulating performance of an insulating box article is enhanced, and an amount of contents of an inner box can be enlarged. In the low-temperature storage comprising: the insulating box article constituted by placing a foamed insulating material between an outer box and the inner box; and a vacuum insulating panel disposed on the surface of the outer box on the side of the foamed insulating material, a thickness dimension of the foamed insulating material between the inner box and the vacuum insulating panel is set so that a temperature of the surface of the vacuum insulating panel on the side of the inner box is not less than a predetermined temperature.

1 . A method of manufacturing a low-temperature storage comprising: an insulating box article constituted by placing a foamed insulating material between an outer box and an inner box; and a vacuum insulating panel disposed on the surface of the outer box on the side of the foamed insulating material, 
 wherein a thickness dimension of the foamed insulating material between the inner box and the vacuum insulating panel is set so that a temperature of the surface of the vacuum insulating panel on the side of the inner box is not less than a predetermined temperature.    
   
   
       2 . The method of manufacturing the low-temperature storage according to  claim 1 , wherein the thickness dimension of the foamed insulating material is set so that the temperature of the surface of the vacuum insulating panel on the side of the inner box is not less than a low-temperature-resistant limit temperature of the vacuum insulating panel on conditions that a temperature in the inner box is −80° C. or less.  
   
   
       3 . The method of manufacturing the low-temperature storage according to  claim 1 , wherein a glass wool is disposed in a sealed vacuum container to constitute the vacuum insulating panel.  
   
   
       4 . A low-temperature storage comprising: an insulating box article constituted by placing a foamed insulating material between an outer box and an inner box; and a vacuum insulating panel disposed in the foamed insulating material, 
 wherein the vacuum insulating panel is constituted by disposing a glass wool in a sealed vacuum container, and    the inside of the inner box is cooled at a low temperature of −80° C. or less.    
   
   
       5 . The low-temperature storage according to  claim 4 , wherein the vacuum insulating panel is disposed on the surface of the outer box on the side of the foamed insulating material, and a temperature of the surface of the vacuum insulating panel on the side of the inner box is set to be not less than a low-temperature-resistant limit temperature of the vacuum insulating panel.  
   
   
       6 . The method of manufacturing the low-temperature storage according to  claim 2 , wherein a glass wool is disposed in a sealed vacuum container to constitute the vacuum insulating panel.