Refrigeration device

Abstract

This refrigeration device is provided with an inner box which surrounds a cooling compartment, a refrigerant liquefying device which is disposed at a higher position than the inner box, and refrigerant piping which is connected to the refrigerant liquefying device and which has a sloped section disposed directly above the inner box while being tilted relative to a horizontal plane.

1 . A refrigeration apparatus comprising:
 an inner box surrounding a cooling chamber;   a refrigerant liquefier disposed at a position higher than the inner box; and   a refrigerant pipe connected to the refrigerant liquefier, the refrigerant pipe comprising an inclined portion disposed directly above the inner box in a state where the inclined portion is inclined with respect to a horizontal plane.   
     
     
         2 . The refrigeration apparatus according to  claim 1 , wherein a ceiling of the inner box is inclined with respect to the horizontal plane. 
     
     
         3 . The refrigeration apparatus according to  claim 2 , wherein the ceiling of the inner box and the inclined portion are parallel to each other. 
     
     
         4 . The refrigeration apparatus according to  claim 1 , wherein the inclined portion is in contact with the ceiling of the inner box. 
     
     
         5 . The refrigeration apparatus according to  claim 1 , further comprising a heat transfer member, wherein
 a ceiling of the inner box is horizontal, and   the inclined portion is supported at the ceiling of the inner box through the heat transfer member.   
     
     
         6 . The refrigeration apparatus according to  claim 1 , wherein the inclined portion is meandering. 
     
     
         7 . The refrigeration apparatus according to  claim 1 , wherein a plurality of the refrigerant pipes are provided. 
     
     
         8 . The refrigeration apparatus according to  claim 1 , wherein the refrigerant pipe comprises a vertical portion connected to the inclined portion and disposed parallel to a vertical plane. 
     
     
         9 . The refrigeration apparatus according to  claim 8 , wherein the vertical portion is arranged along two or more sides of the inner box, and is bent at a predetermined angle in plan view. 
     
     
         10 . The refrigeration apparatus according to  claim 1 , wherein the refrigerant pipe comprises a lower inclined portion disposed directly below the inner box in a state where the lower inclined portion is inclined with respect to the horizontal plane. 
     
     
         11 . The refrigeration apparatus according to  claim 1 , wherein the inclined portion causes a refrigerant of a liquid phase to flow through the inclined portion.