Heat transporting unit, electronic circuit board and electronic device

Abstract

The heat transporting unit according to the Present Disclosure comprises: an upper plate; a lower plate that faces the upper plate; an interior space that is formed by the upper plate and the lower plate and wherein a refrigerant can be sealed; a first region, that is a region that is part of the interior space and that is provided with a first column portion that forms a plurality of first ducts that extend in the X-axis direction; and a second region that is provided with a second column portion that forms a plurality of second ducts that extend in the X-axis direction and the Y-axis direction, that is a region that is other than the first region within the interior space; wherein: the first ducts and second ducts connect at a boundary between the first region and the second region.

What is claimed is: 
     
         1 . A heat transporting unit having a space defined by mutually orthogonal X, Y and Z axes, comprising:
 an upper plate;   a lower plate that faces the upper plate;   an interior space that is formed by the upper plate and the lower plate and wherein a refrigerant can be sealed;   a first region, that is a region that is part of the interior space and that is provided with a first column portion that forms a plurality of first ducts that extend in the X-axis direction; and   a second region that is provided with a second column portion that forms a plurality of second ducts that extend in the X-axis direction and the Y-axis direction, that is a region that is other than the first region within the interior space;   wherein the first ducts and second ducts connect at a boundary between the first region and the second region.   
     
     
         2 . The heat transporting unit of  claim 1 , wherein, in the first duct, not only does a vaporized refrigerant move in the X-axis direction, but a condensed refrigerant also moves in the X-axis direction. 
     
     
         3 . The heat transporting unit of  claim 2 , wherein, in the second duct, not only does the vaporized refrigerant move in the X-axis direction and the Y-axis direction, but the condensed refrigerant also moves in the X-axis direction and the Y-axis direction. 
     
     
         4 . The heat transporting unit of  claim 3 , wherein not only does vaporized refrigerant move mutually at the boundary between the first duct and the second duct, but also the condensed refrigerant moves mutually at the boundary between the first duct and the second duct. 
     
     
         5 . The heat transporting unit of  claim 4 , wherein a second region is provided at at least one of the two end portions of the interior space. 
     
     
         6 . The heat transporting unit of  claim 5 , wherein a first region is provided in a region other than the second region in the interior space. 
     
     
         7 . The heat transporting unit of  claim 4 , wherein a second region is provided in the center portion of the interior space. 
     
     
         8 . The heat transporting unit of  claim 7 , wherein a first region is provided in a region other than the second region in the interior space. 
     
     
         9 . The heat transporting unit of  claim 4 , wherein a second region not only diffuses heat received from a heat emitting object in the X-axis direction and the Y-axis direction, but also moves it to the first region. 
     
     
         10 . The heat transporting unit of  claim 9 , wherein the first region transports, in the X-axis direction, the heat moved from the second region. 
     
     
         11 . The heat transporting unit of  claim 10 , wherein, when the second region is provided at a first end portion and at a second end portion that is opposite from the first end portion, within the interior space, the second region of the first end portion side not only causes the diffusion, in the X-axis direction and the Y-axis direction, of the heat received from the heat emitting object, but also causes it to move to the first region. 
     
     
         12 . The heat transporting unit of  claim 11 , wherein, when the second region is provided at a first end portion and at a second end portion that is opposite from the first end portion, within the interior space, the first region transports, in the X-axis direction, the heat moved from the second region on the first end portion side. 
     
     
         13 . The heat transporting unit of  claim 12 , wherein, when the second region is provided at a first end portion and at a second end portion that is opposite from the first end portion, within the interior space, the second region on the second end portion side diffuses, in the X-axis direction and the Y-axis direction, the heat that has been transported by the first region. 
     
     
         14 . The heat transporting unit of  claim 10 , wherein, when the second region is provided in the center of the interior space, and the first region is provided at a first end portion and at a second end portion that is on the opposite side from the first end portion, in the interior space, the second region not only diffuses in the X-axis direction and the Y-axis direction the heat that is received from the heat emitting object, but also moves it to the first region. 
     
     
         15 . The heat transporting unit of  claim 14 , wherein, when the second region is provided in the center of the interior space, and the first region is provided at a first end portion and at a second end portion that is on the opposite side from the first end portion, in the interior space, the first region transports, in the X-direction, the heat moved from the second region. 
     
     
         16 . The heat transporting unit of  claim 10 , wherein the upper plate and/or the lower plate also has a heat receiving portion that contacts the heat emitting object thermally. 
     
     
         17 . The heat transporting unit of  claim 16 , wherein the heat receiving portion is provided spanning the first region and the second region. 
     
     
         18 . The heat transporting unit of  claim 17 , wherein a first column portion has a cutout to connect together adjacent first ducts within a plurality of first ducts. 
     
     
         19 . The heat transporting unit of  claim 18 , wherein the second region has one or more intermediate plates layered in the Z-axis direction. 
     
     
         20 . The heat transporting unit of  claim 19 , wherein the intermediate plates form the second column portion that is stacked in the Z-axis direction. 
     
     
         21 . The heat transporting unit of  claim 20 , wherein the second column portion forms second ducts in the X-axis direction, the Y-axis direction, and the Z-axis direction. 
     
     
         22 . The heat transporting unit of  claim 21 , wherein the second column portion comprises a large column member and a small column member that is smaller than the large column member. 
     
     
         23 . The heat transporting unit of  claim 22 , wherein at least a portion of the first ducts and the second ducts have capillary forces that move the condensed refrigerant. 
     
     
         24 . The heat transporting unit of  claim 23 , wherein at least a portion of the upper plate, the lower plate, the first column portion, and/or the second column portion has a channel in a surface that is exposed to the interior space. 
     
     
         25 . The heat transporting unit of  claim 24 , wherein the upper plate and/or the lower plate is further equipped with a heat radiating portion for radiating the transported heat, in a region that faces at least a portion of the first region and/or the second region. 
     
     
         26 . The heat transporting unit of  claim 25 , wherein at least a portion of the upper plate, the lower plate, the first column portion, and/or the second column portion has metal plating on a surface that is exposed to the interior space. 
     
     
         27 . The heat transporting unit of  claim 26 , wherein the width of the first region in the Y-axis direction and the width of the second region in the Y-axis direction are essentially identical.