Refrigeration apparatus

Abstract

A refrigeration apparatus includes: a housing that surrounds an internal space (refrigeration chamber) where a refrigeration target is stored; and a negative pressure release port that includes a pipe (cylindrical body) attached to the housing so as to protrude into the internal space, a heating element provided in the pipe, and a rib joining the pipe and the heating element.

1 . A refrigeration apparatus, comprising:
 a housing that surrounds a refrigeration chamber where a refrigeration target is stored; and   a negative pressure release port that includes a cylindrical body attached to the housing so as to protrude into the refrigeration chamber, a heating element provided in the cylindrical body, and a rib joining the cylindrical body and the heating element.   
     
     
         2 . The refrigeration apparatus according to  claim 1 , wherein the rib is placed at a position across an inner surface of the housing. 
     
     
         3 . The refrigeration apparatus according to  claim 2 , wherein the rib is placed so that 50% or more of a length of a portion where the rib is joined to the cylindrical body is located outside of the inner surface of the housing. 
     
     
         4 . The refrigeration apparatus according to  claim 1 , wherein the heating element is placed at a position across an inner surface of the housing. 
     
     
         5 . The refrigeration apparatus according to  claim 4 , wherein the heating element is placed so that 50% or more of a length of the heating element is located inward relative to the inner surface of the housing. 
     
     
         6 . The refrigeration apparatus according to  claim 1 , wherein an end of the cylindrical body on a side of the refrigeration chamber and an end of the heating element on the side of the refrigeration chamber are placed on substantially a same plane. 
     
     
         7 . The refrigeration apparatus according to  claim 1 , wherein a protrusion length of the cylindrical body from an inner surface of the housing is 50% or more of an outer diameter of the cylindrical body. 
     
     
         8 . The refrigeration apparatus according to  claim 1 , wherein a protrusion length of the cylindrical body from an inner surface of the housing is a length with which ice formed on a terminal on an outer circumferential surface of the cylindrical body on a side of the refrigeration chamber falls off from the cylindrical body by its own weight before reaching the inner surface of the housing, the ice being formed due to freezing of moisture contained in air passed through the cylindrical body. 
     
     
         9 . The refrigeration apparatus according to  claim 1 , further comprising:
 a partition member that is provided between a plurality of openings of the housing;   a plurality of inner doors that are each provided with a thermal insulation material inside and that respectively cover the plurality of openings;   an outer door that covers the plurality of inner doors; and   a packing that is pressed between the plurality of inner doors and the partition member when the plurality of inner doors are closed, wherein,
 the negative pressure release port is placed at a position hidden by the partition member in a front view.