Cooling apparatus boiling and condensing refrigerant with low height and easily assembled

Abstract

A cooling apparatus boiling and condensing a refrigerant is disclosed, wherein a heat-generating member mounted on the upper surface thereof can also be cooled. A plurality of intermediate plates ( 130 A to 130 E) are stacked between an upper plate ( 110 ) and a lower plate ( 120 ). A plurality of apertures ( 131 to 134 ) formed in the intermediate plates define a first space ( 140 ) for hermetically sealing the refrigerant and a second space ( 150 ) through which an external cooling fluid flows in proximity to the first space. A heat-generating member ( 10 ) is mounted on the outer surface of at least the lower plate, and heat is exchanged between the refrigerant heated and boiled by the heat-generating member and the external cooling fluid. An upper portion ( 150 A) of the second space is formed in proximity to the inner surface of the upper plate.

1 . A cooling apparatus boiling and condensing a refrigerant, comprising: 
 an upper plate;    a lower plate;    a plurality of intermediate plates stacked between said upper plate and said lower plate;    a first space defined by a plurality of apertures formed in said intermediate plates for hermetically sealing a refrigerant therein;    a second space through which an external cooling fluid flows in proximity to said first space; and    at least a heat-generating member mounted on an outer surface of at least said lower plate of said upper plate and said lower plate;    wherein heat is exchanged between said external cooling fluid and said refrigerant boiled by the heat of said heat-generating member; and    wherein an upper surface of said second space is formed in proximity to an inner surface of said upper plate.    
     
     
         2 . A cooling apparatus boiling and condensing a refrigerant according to  claim 1 , 
 wherein an area where said upper surface of said second space is in proximity to said inner surface of said upper plate is formed in a position corresponding to the area of said heat-generating member which may be mounted on said upper plate.    
     
     
         3 . A cooling apparatus boiling and condensing a refrigerant according to  claim 1 , 
 wherein a lower surface of said second space is formed in proximity to an inner surface of said lower plate.    
     
     
         4 . A cooling apparatus boiling and condensing a refrigerant according to  claim 1 , 
 wherein said first space includes a plurality of first small spaces communicating with each other;    wherein said second space includes a plurality of second small spaces communicating with each other; and    wherein said first small spaces and said second small spaces are arranged to coexist with each other.    
     
     
         5 . A cooling apparatus boiling and condensing a refrigerant according to  claim 4 , 
 wherein said heat-generating member includes a plurality of internal heat sources generating heat, and    wherein said heat sources of said heat-generating member mounted on said lower plate are arranged in positions corresponding to the positions of said first small spaces.    
     
     
         6 . A cooling apparatus boiling and condensing a refrigerant according to  claim 4 , 
 wherein said heat-generating member includes a plurality of internal heat sources, and    wherein said heat sources of said heat-generating member mounted on said upper plate are arranged in positions corresponding to the positions of said second small spaces.    
     
     
         7 . A cooling apparatus comprising: a multilayer structure of a plurality of plate members; 
 wherein a fluid path communicating with outside through communication ports is formed in said multilayer structure of said plurality of said plate members; and    wherein the heat of a heat-generating member mounted on the surface of said cooling apparatus is discharged into a heat receiving medium flowing in and out by way of said communication ports and flowing in said fluid path thereby to cool said heat-generating member; and    wherein said communication ports are formed in the surface at the end portions of said plate members along the direction in which said plate members extend.    
     
     
         8 . A cooling apparatus according to  claim 7 , 
 wherein said communication ports are each formed as a rectangle with notches of the same shape in the same positions at the end portions of a plurality of adjacent ones of said plate members.    
     
     
         9 . A cooling apparatus according to  claim 7 , 
 wherein a pipe member through which said heat receiving medium flows is projected outward from each of said communication ports.    
     
     
         10 . A cooling apparatus according to  claim 9 , 
 wherein each of said pipe members is connected to the corresponding one of said communication ports through a connecting member.    
     
     
         11 . A cooling apparatus according to  claim 10 , 
 wherein each of said connecting members is arranged in such a manner as to cover said corresponding communication port and has a through hole through which the corresponding one of said pipe members is inserted.    
     
     
         12 . A cooling apparatus according to  claim 11 , 
 wherein said through hole is circular in shape.    
     
     
         13 . A cooling apparatus according to  claim 10 , 
 wherein said connecting member has a projected portion, and said multilayer structure of said plurality of said plates is formed with a fitting recess to be fitted with said projected portion.    
     
     
         14 . A cooling apparatus according to  claim 13 , 
 wherein said connecting member is a tabular metal member bent into L shape to form said projected portion.    
     
     
         15 . A cooling apparatus according to  claim 10 , 
 wherein said multilayer structure of the plurality of said plate members is formed with a recess corresponding to the shape of said connecting member, and said connecting member is inserted into said recess.    
     
     
         16 . A cooling apparatus according to  claim 7 , 
 wherein said multilayer structure of the plurality of said plate members has a refrigerant bath section for storing the refrigerant therein and a heat exchange section for exchanging heat between said refrigerant and said heat receiving medium flowing through said fluid path, and    wherein said refrigerant stored in said refrigerant bath section is boiled and gasified by the heat received from said heat-generating member and discharges the latent heat of said refrigerant vapor into said heat receiving medium flowing in said fluid path in said heat exchange section thereby to cool said heat-generating member.    
     
     
         17 . A cooling apparatus boiling and condensing a refrigerant, comprising: 
 a refrigerant bath section having a first heat-generating member mounted on the surface thereof for storing a refrigerant therein;    a refrigerant diffusion section for diffusing said refrigerant boiled by the heat received from said first heat-generating member; and    a heat exchange section interposed between said refrigerant bath section and said refrigerant diffusion section and including a first space communicating with said refrigerant bath section and said refrigerant diffusion section and through which said refrigerant flows, and a second space through which an external cooling fluid flows;    wherein said heat exchange section includes a multilayer structure of a plurality of tabular members having a plurality of apertures corresponding to said first space and said second space; and    wherein said refrigerant bath section is formed integrally by forging or casting.    
     
     
         18 . A cooling apparatus boiling and condensing a refrigerant according to  claim 17 , 
 wherein said refrigerant bath section includes at least one of a screw portion for mounting said first heat-generating member and a mounting portion for mounting a predetermined mating member.    
     
     
         19 . A cooling apparatus boiling and condensing a refrigerant according to  claim 17 , 
 wherein said refrigerant bath section has therein a plurality of first ribs for increasing the area of heat transfer with said refrigerant.    
     
     
         20 . A cooling apparatus boiling and condensing a refrigerant according to  claim 17 , 
 wherein the inner bottom surface of said refrigerant bath section is formed with a plurality of first depressions.    
     
     
         21 . A cooling apparatus boiling and condensing a refrigerant according to  claim 20 , 
 wherein said first ribs are arranged in said plurality of said first depressions.    
     
     
         22 . A cooling apparatus boiling and condensing a refrigerant according to  claim 19 , 
 wherein said first ribs are formed as concavities in such a manner as to open from the center toward the outer periphery of said refrigerant bath section.    
     
     
         23 . A cooling apparatus boiling and condensing a refrigerant according to  claim 17 , 
 wherein said refrigerant diffusion section is formed integrally by forging or casting.    
     
     
         24 . A cooling apparatus boiling and condensing a refrigerant according to  claim 23 , 
 wherein said refrigerant diffusion section is formed with at least selected one of a screw portion for mounting a second heat-generating member and a mounting portion for mounting a predetermined mating member.    
     
     
         25 . A cooling apparatus boiling and condensing a refrigerant according to  claim 17 , 
 wherein a second heat-generating member is mounted on the surface of said refrigerant diffusion section, and    wherein said refrigerant diffusion section has therein a plurality of second ribs extending from said second heat-generating member side toward said second space side and in contact with said heat exchange section.    
     
     
         26 . A cooling apparatus boiling and condensing a refrigerant according to  claim 25 , 
 wherein said second ribs are formed as concavities in such a manner as to open to the outer periphery from the center of said refrigerant diffusion section.    
     
     
         27 . A cooling apparatus boiling and condensing a refrigerant according to  claim 25 , 
 wherein said surface of said heat exchange section in contact with said second ribs is formed with a plurality of second depressions, and    wherein said second ribs are arranged in said plurality of second depressions.    
     
     
         28 . A cooling apparatus boiling and condensing a refrigerant according to  claim 17 , 
 wherein at least selected one of said refrigerant bath section and said refrigerant diffusion section has therein a third space through which said external cooling fluid flows from said second space, and    wherein a sacrificial member active against said external cooling fluid is arranged on the inner surface of said refrigerant bath section or said refrigerant diffusion section having said third space.    
     
     
         29 . A cooling apparatus according to  claim 28 , 
 wherein said sacrificial member formed on the inner surface of at least said refrigerant bath section of said refrigerant bath section or said refrigerant diffusion section has a porous structure.