Heat conduction member

Abstract

A heat conductor includes a housing including a space therein and a working medium in the space. The housing includes an upper plate on an upper side of the housing in a thickness direction and covering an upper side of the space, a lower plate on a lower side of the space and opposing the upper plate in the thickness direction, and pillars between the upper plate and the lower plate. The housing further includes a bent portion in which both the upper plate and the lower plate are bent in a same direction in the thickness direction. At least a portion of the pillars is located on the bent portion.

What is claimed is: 
     
         1 . A heat conductor, comprising:
 a housing including a space therein; and   a working medium in the space; wherein   the housing includes:
 an upper plate located on an upper side of the housing in a thickness direction and covering an upper side of the space; 
 a lower plate located on a lower side of the space and opposing the upper plate in the thickness direction; and 
 pillars located between the upper plate and the lower plate; 
   the housing further includes a bent portion in which both the upper plate and the lower plate are bent in a same direction in the thickness direction; and   at least a portion of the pillars is located on the bent portion.   
     
     
         2 . The heat conductor according to  claim 1 , wherein
 a length of each of the pillars located on the bent portion in a direction intersecting an extending direction of a ridge line of the bent portion is longer than a length of the extending direction.   
     
     
         3 . The heat conductor according to  claim 1 , further comprising:
 a plurality of the bent portions; wherein   the pillars located on the bent portions continuously extend from above one of the bent portions to above another one of the bent portions.   
     
     
         4 . The heat conductor according to  claim 1 , further comprising:
 a plurality of the bent portions; wherein   at least one of the pillars is located between two of the plurality of bent portions.   
     
     
         5 . The heat conductor according to  claim 1 , wherein
 the pillars are arranged at predetermined intervals over an entire region from one end portion of an outer edge of the housing to another end portion of the outer edge opposite to the one end portion.   
     
     
         6 . The heat conductor according to  claim 1 ,
 further comprising:
 a wick structure in the space; wherein 
 the wick structure is located over regions on two sides of the bent portion in a direction intersecting an extending direction of a ridge line of the bent portion.