Heat transport device, method of manufacturing a heat transport device, and electronic apparatus

Abstract

A heat transport device includes a working fluid, a capillary member, and a container. The working fluid transports heat by performing a phase change. The capillary member applies a capillary force to the working fluid. The capillary member includes a first mesh member having a mesh of a first size and a second mesh member having a mesh of a second size different from the first size. The second mesh member is folded so that the first mesh member is sandwiched. The container contains the working fluid and the capillary member.

1 . A heat transport device, comprising:
 a working fluid to transport heat by performing a phase change;   a capillary member to apply a capillary force to the working fluid, the capillary member including a first mesh member having a mesh of a first size and a second mesh member having a mesh of a second size different from the first size, the second mesh member being folded so that the first mesh member is sandwiched; and   a container to contain the working fluid and the capillary member.   
     
     
         2 . The heat transport device according to  claim 1 ,
 wherein the first mesh member has an end portion, and   wherein the second mesh member is folded to cover the end portion.   
     
     
         3 . The heat transport device according to  claim 2 ,
 wherein the first mesh member has a pair of end portions that are opposed to each other, and   wherein the second mesh member is folded to cover the pair of end portions.   
     
     
         4 . The heat transport device according to  claim 3 ,
 wherein the first size is smaller than the second size.   
     
     
         5 . The heat transport device according to  claim 4 , further comprising:
 a liquid-phase flow path through which the working fluid in a liquid phase passes; and   a gas-phase flow path through which the working fluid in a gas phase passes,   wherein the container includes an internal space having a thickness that is equal to a thickness of the capillary member, and   wherein the capillary member includes the first mesh member and the second mesh member, the first mesh member serving as the liquid-phase flow path, the second mesh member serving as the gas-phase flow path.   
     
     
         6 . The heat transport device according to  claim 1 ,
 wherein the first mesh member and the second mesh member are alternately folded to be sandwiched therebetween.   
     
     
         7 . The heat transport device according to  claim 2 ,
 wherein the container includes a first member and a second member that are bonded to each other, and   wherein the capillary member is contained in the container so that a folded part of the second mesh member is disposed along a bonding area of the first and second members.   
     
     
         8 . The heat transport device according to  claim 2 ,
 wherein the container includes one plate member that is folded and bonded to form the container, and   wherein the capillary member is contained in the container so that a folded part of the second mesh member is disposed along a bonding area of the plate member.   
     
     
         9 . A heat transport device, comprising:
 a working fluid to transport heat by performing a phase change;   a capillary member to apply a capillary force to the working fluid, the capillary member including a first mesh member having meshes arranged in a first direction and a second mesh member having meshes arranged in a second direction different from the first direction, the second mesh member being folded so that the first mesh member is sandwiched; and   a container to contain the working fluid and the capillary member.   
     
     
         10 . A method of manufacturing a heat transport device, comprising:
 forming a capillary member used for a heat transport device by folding a second mesh member to cause a first mesh member to be sandwiched and cover an end portion of the first mesh member, the first mesh member having a mesh of a first size, the second mesh member having a mesh of a second size different from the first size;   placing the capillary member on a first member that constitutes a container of the heat transport device so that a folded part of the second mesh member is disposed along a bonding area of the first member; and   forming the container that contains the capillary member by bonding a second member that constitutes the container to the bonding area of the first member.   
     
     
         11 . A method of manufacturing a heat transport device, comprising:
 forming a capillary member used for a heat transport device by folding a second mesh member to cause a first mesh member to be sandwiched and cover a pair of end portions of the first mesh member;   placing the capillary member on a first member that constitutes a container of the heat transport device so that a folded part of the second mesh member is disposed along a bonding area of the first member; and   forming the container that contains the capillary member by bonding a second member that constitutes the container to the bonding area of the first member.   
     
     
         12 . A method of manufacturing a heat transport device, comprising:
 forming a capillary member used for a heat transport device by folding a second mesh member to cause a first mesh member to be sandwiched and cover an end portion of the first mesh member, the first mesh member having a mesh of a first size, the second mesh member having a mesh of a second size different from the first size;   placing the capillary member on one plate member that constitutes a container of the heat transport device so that a folded part of the second mesh member is disposed along a bonding area of the plate member; and   forming the container that contains the capillary member by folding and bonding the plate member to the bonding area.   
     
     
         13 . An electronic apparatus, comprising:
 a heat source; and   a heat transport device including
 a working fluid to transport heat by performing a phase change, 
 a capillary member to apply a capillary force to the working fluid, the capillary member including a first mesh member having a mesh of a first size and a second mesh member having a mesh of a second size different from the first size, the second mesh member being folded so that the first mesh member is sandwiched, and 
 a container to contain the working fluid and the capillary member, the container being connected to the heat source.