Heat exchanger

Abstract

A heat exchanger that can easily change the position of the inlet and outlet of the fluid without increasing the types of plates is disclosed. The heat exchanger includes a laminate including a plurality of plates are laminated to alternately form a channel for a first fluid and a channel for a second fluid in a laminate direction. A case containing the laminate and opening on one side of the laminate direction is provided. A base plate is provided with holes for the second fluid provided on an open side of the case. The case has a side wall extending along the laminate direction. A top surface part is provided on an other side of the laminate direction in the case. An inlet and an outlet for the first fluid to pass through is provided in the side wall or top surface part.

What is claimed is: 
     
         1 . A heat exchanger comprising:
 a laminate where a plurality of plates are laminated to alternately form a channel for a first fluid and a channel for a second fluid in a laminate direction,   a case containing the laminate and opening one side of the laminate direction,   a base plate provided with holes for the second fluid provided on an open side of the case, the case having a side wall extending along the laminate direction,   a top surface part on an other side of the laminate direction in the case,   an inlet and an outlet for the first fluid to pass through provided in the side wall or top surface part,   the plurality of plates each having peripheral flange parts protruding in the laminate direction from an outer edge,   bosses provided in a pair of corners and having a through hole and protruding toward the channel for the first fluid formed between the plurality of plates,   wherein a first distribution channel is formed between a peripheral part of the laminate and an inner surface of the side wall of the case,   wherein the first fluid flows along the laminate direction and connects with the channel for the first fluid formed between the plurality of plates,   the plurality of plates connected to a second fluid passage hole of the base plate, and also connected to the bosses and through holes of adjacent plates in the laminate direction to allow the second fluid to pass through in the laminate direction,   wherein a second distribution channel is formed to connect with the channel for the second fluid formed between the plurality of plates;   an uppermost plate of the plurality of plates in the laminate direction protrudes toward the laminate direction and is formed so that a height of the peripheral flange parts is lower than a height of the peripheral flange parts in the other plates and is equivalent to a height of the boss;   a lowest plate of the plurality of plates in the laminate direction has a boss with a through hole at the location of the hole for the second fluid passage hole in the base plate protruding toward the laminate direction and connected to the boss of the adjacent plate in the laminate direction in a liquid-tight manner,   wherein the top surface part is connected in a liquid tight manner to the boss of the uppermost plate in the laminate direction of the laminate to close the uppermost surface of the second distribution channel.   
     
     
         2 . The heat exchanger of  claim 1 , wherein the laminate, excluding the lowest plate, is assembled inverting in the opposite direction to the lamination direction. 
     
     
         3 . The heat exchanger of  claim 1 , wherein the plurality of plates are rectangular. 
     
     
         4 . The heat exchanger of  claim 1 , wherein the laminate is selectively configured such that a tip of the peripheral flange parts of the plurality of plates is either in a lamination direction upwardly facing or in a lamination direction downwardly facing arrangement. 
     
     
         5 . The heat exchanger of  claim 2 , wherein the laminate is selectively configured such that a tip of the peripheral flange parts of the plurality of plates is either in a lamination direction upwardly facing or in a lamination direction downwardly facing arrangement. 
     
     
         6 . The heat exchanger of  claim 3 , wherein the laminate is selectively configured such that a tip of the peripheral flange parts of the plurality of plates is either in a lamination direction upwardly facing or in a lamination direction downwardly facing arrangement. 
     
     
         7 . A heat exchanger comprising:
 a laminate including a plurality of plates are laminated to alternately form a channel for a first fluid and a channel for a second fluid in a laminate direction,   a case containing the laminate and opening on one side of the laminate direction,   a base plate provided with holes for the second fluid provided on an open side of the case, the case having a side wall extending along the laminate direction,   a top surface part on an other side of the laminate direction in the case,   an inlet and an outlet for the first fluid to pass through provided in the side wall or top surface part,   the plurality of plates each having peripheral flange parts protruding in the laminate direction from an outer edge,   bosses provided in a pair of corners and having a through hole and protruding toward the channel for the first fluid formed between the plurality of plates,   wherein a first distribution channel is formed between a peripheral part of the laminate and an inner surface of the side wall of the case,   wherein the first fluid flows along the laminate direction and connects with the channel for the first fluid formed between the plurality of plates,   the plurality of plates connected to a second fluid passage hole of the base plate, and also connected to the bosses and through holes of adjacent plates in the laminate direction to allow the second fluid to pass through in the laminate direction,   wherein a second distribution channel is formed to connect with the channel for the second fluid formed between the plurality of plates;   wherein the top surface part is connected in a liquid tight manner to the boss of the uppermost plate in the laminate direction of the laminate to close the uppermost surface of the second distribution channel.   
     
     
         8 . The heat exchanger of  claim 7 , wherein an uppermost plate of the plurality of plates in the laminate direction protrudes toward the laminate direction and is formed so that a height of the peripheral flange parts is lower than a height of the peripheral flange parts in the other plates and is equivalent to a height of the boss. 
     
     
         9 . The heat exchanger of  claim 7 , wherein a lowest plate of the plurality of plates in the laminate direction has a boss with a through hole at the location of the hole for the second fluid passage hole in the base plate protruding toward the laminate direction and connected to the boss of the adjacent plate in the laminate direction in a liquid-tight manner. 
     
     
         10 . The heat exchanger of  claim 9 , wherein the laminate, excluding the lowest plate, is assembled inverting in the opposite direction to the lamination direction. 
     
     
         11 . The heat exchanger of  claim 7 , wherein the plurality of plates are rectangular. 
     
     
         12 . The heat exchanger of  claim 7 , wherein the laminate is selectively configured such that a tip of the peripheral flange parts of the plurality of plates is either in a lamination direction upwardly facing or in a lamination direction downwardly facing arrangement.