Multiplate heat exchanger

Abstract

A fin-type heat transfer device ( 1 ), in particular for vehicle applications, has fins ( 2 ) stacked onto one another spaced in a stack direction ( 5 ), which form a fin stack. The fins each form a plurality of openings ( 4 ) surrounded by collars ( 3 ), and the collars of adjacent fins are coupled to one another. In the region of the coupled collars, a channel ( 6 ), each of a channel system ( 7 ) for a first flow path ( 8 ) of a first fluid, is formed and between adjacent fins a second flow path ( 9 ) of a second fluid is formed, and with end plates ( 10 ) on ends of the fin stack that are distant from one another in the stack direction. The channels are fluidically connected to one another within the end plates. The fin-type heat transfer device ( 1 ) makes possible a cost-effective and simple production and assembly through a tubeless construction.

1 . A fin heat transfer device for vehicle applications, the heat transfer device comprising:
 a plurality of fins, stacked onto one another with spacing in a stack direction, forming a fin stack, wherein the fins each comprise a plurality of openings surrounded by collars, wherein the collars of adjacent fins are coupled to one another, so that in the region of the coupled collars a channel is formed, each channel being a part of a channel system for a first flow path of a first fluid, wherein between adjacent fins a second flow path of a second fluid is formed; and   end plates on ends of the fin stack which in the stack direction are distant from one another, wherein the channels are fluidically connected to one another within the end plates.   
     
     
         2 . The fin heat transfer device according to  claim 1 , wherein rims of the fins are formed on at least one side of the heat transfer device in such a manner that these rims form a closed side wall of the fin stack. 
     
     
         3 . The fin heat transfer device according to  claim 2 , further comprising a housing which, relative to a transverse direction of the heat transfer device, orientated transversely to the stack direction, encloses the second flow path in the circumferential direction through the two side walls located opposite one another and in the stack direction through the end plates, wherein in a longitudinal direction, the second flow path flows and on longitudinal ends comprises an inlet and an outlet for the second fluid. 
     
     
         4 . The fin heat transfer device according to  claim 3 , wherein the channels are arranged within the second flow path. 
     
     
         5 . The fin heat transfer device according to  claim 4 , wherein the channels extend transversely to the longitudinal direction of the heat transfer device through the second flow path and are arranged parallel next to one another both in a longitudinal direction as well as in a transverse direction of the fin heat transfer device. 
     
     
         6 . The fin heat transfer device according to  claim 1 , wherein the collars of the fins are conically shaped. 
     
     
         7 . The fin heat transfer device according to  claim 1   6 , wherein the collars of the fins in a flow direction of the first fluid or against the flow direction of the first fluid project from the respective fin. 
     
     
         8 . The fin heat transfer device according to  claim 1 , wherein the end plates each comprise at least one opening, which serves for the feeding or discharging of the first fluid to or from the channel system. 
     
     
         9 . The fin heat transfer device according to  claim 1 , wherein:
 the end plates each contact the directly adjacent fin outside the openings or collars; and   the contact creates a fluidic connection between the channels; and   the contact retains a separation between the two flow paths of the first and of the second fluid.   
     
     
         10 . The fin heat transfer device according to  claim 9 , wherein at least one of:
 the contact between the end plates and the respective adjacent fins is linear or areal; and   the end plates via this contact are fastened to the directly adjacent fin.   
     
     
         11 . The fin heat transfer device according to  claim 1 , wherein the end plates each comprise plate hollow spaces, by means of which the respective channels are fluidically connected to one another within the end plates. 
     
     
         12 . The fin heat transfer device according to  claim 1 , wherein one of:
 the plate hollow spaces at least of one of the end plates form connect channels, each of which connect an outlet end of a single channel with an inlet end of a single other channel; and   the plate hollow spaces of at least one of the end plates form connecting chambers, which each connect outlet ends of a plurality of channels with inlet ends of a plurality of other channels.   
     
     
         13 . The fin heat transfer device according to  claim 1 , wherein at least one of:
 the channels run parallel to one another, and   the channels are arranged in lines of the second fluid next to one another which run transversely to a flow direction of the second fluid, wherein the channels are aligned with one another in lines which follow one another in the flow direction of the second fluid or are arranged offset transversely to the flow direction of the second fluid.   
     
     
         14 . The fin heat transfer device according to  claim 1 , wherein the coupled collars abut one another and/or are coupled to one another via joints. 
     
     
         15 . The fin heat transfer device according to  claim 1 , further comprising at least one sleeve extending through at least one of the channels formed through the collars and in particular insulates the latter.