Heat exchange device

Abstract

A heat exchange device comprises a base and a plurality of fins. The plurality of fins are in thermal contact with the base to allow heat transport from the base to the fins. Further, the fins comprise at least one respective channel containing a working fluid. The fins are arranged in at least a first and a second row. The rows can be laterally displaced with respect to each other. Further, the first row and second row may be staggered with respect to each other.

1 . A heat exchange device comprising:
 a base that is thermally connectable with at least one heat emitting device for receiving heat, and   a plurality of fins, which are in thermal contact with the base to allow heat transport from the base to an outer surface of the fins, wherein at least one fin is a multi-port tube comprising a plurality of channels, and wherein the fins are arranged in at least one first row and at least one second row to a matrix extending in a first direction and in a second direction, wherein at least one of the first row and the second row extends in the first direction.   
   
   
       2 . The heat exchange device according to  claim 1 , wherein the first row and second row are staggered with respect to each other in the first direction. 
   
   
       3 . The heat exchange device according to  claim 2 , wherein the at least one first row and the at least one second row of the matrix are indented to one another in the second direction. 
   
   
       4 . The heat exchange device according to  claim 2 , wherein the first row is displaced from the second row in the second direction by a predetermined first offset, in particular a first offset being at least as long as a fin in its longest extension, and/or in the first direction by a predetermined second offset of about half the distance between two neighbouring fins of the first row. 
   
   
       5 . The heat exchange device according to  claim 1 , wherein at least one of the channels has a smooth inner surface and/or wherein at least one of the channels has an inner surface with at least one of a fin-like protrusion and a groove-like recess. 
   
   
       6 . The heat exchange device according to  claim 1 , wherein the channels of at least two fins of the first row and/or the second row are fluidly connected to one another via the base. 
   
   
       7 . The heat exchange device according to  claim 1 , wherein the channels of at the at least one first row and the channels of the at least one second row are fluidly disconnected of one another. 
   
   
       8 . The heat exchange device according to  claim 1 , wherein the fins have each a first dimension extending in the first direction, and a second dimension extending in the second direction, and wherein a ratio of the second dimension to the first dimension is at least 2:1, preferably at least 5:1. 
   
   
       9 . The heat exchange device according to  claim 8 , wherein the fins are limited each in a direction defined by at least one of the channels by a third dimension, and wherein the ratio of the third dimension to the second dimension is at least 1:1, preferably at least 2:1. 
   
   
       10 . The heat exchange device according to  claim 1 , wherein the first row is laterally offset from the second row in the second direction. 
   
   
       11 . The heat exchange device according to  claim 1 , wherein the fins of the at least one of the first row and the second row are substantially aligned in a linear and/or a straight manner. 
   
   
       12 . The heat exchange device according to  claim 6 , wherein the base comprises at least one hollow body portion, that is fluidly connected by at least one opening on the side, on which the fins are arranged, said opening fluidly connecting the channels such that the working fluid can flow between channels of at least two fins via the at least one hollow body portion. 
   
   
       13 . A method of manufacturing a heat exchange device, comprising the steps of:
 a) providing a base and a plurality of fins, wherein at least one of said fins comprises a multi-port tube with a plurality of channels;   b) thermally coupling the plurality of fins to the base such that a matrix is formed, wherein said matrix comprises at least a first row and at least one second row,   c) introducing a working fluid into at least one of the plurality of fins and the base; and   d) preventing the working fluid from escaping off the at least one of the plurality of fins and the base.   
   
   
       14 . A method of manufacturing the heat exchange device according to  claim 1 , comprising the steps of:
 a) providing a base and a plurality of fins, wherein at least one of said fins comprises a multi-port tube with a plurality of channels;   b) thermally coupling the plurality of fins to the base such that a matrix is formed, wherein said matrix comprises at least a first row and at least one second row,   c) introducing a working fluid into at least one of the plurality of fins and the base; and   d) preventing the working fluid from escaping off the at least one of the plurality of fins and the base.   
   
   
       15 . A power module comprising at least one heat emitting device such power electronic and/or electric device that is thermally connected to at least one heat exchange device according to  claim 1 . 
   
   
       16 . The heat exchange device according to  claim 3 , wherein the first row is displaced from the second row in the second direction by a predetermined first offset, in particular a first offset being at least as long as a fin in its longest extension, and/or in the first direction by a predetermined second offset of about half the distance between two neighbouring fins of the first row. 
   
   
       17 . The heat exchange device according to  claim 4 , wherein at least one of the channels has a smooth inner surface and/or wherein at least one of the channels has an inner surface with at least one of a fin-like protrusion and a groove-like recess. 
   
   
       18 . The heat exchange device according to  claim 5 , wherein the channels of at least two fins of the first row and/or the second row are fluidly connected to one another via the base. 
   
   
       19 . The heat exchange device according to  claim 6 , wherein the channels of at the at least one first row and the channels of the at least one second row are fluidly disconnected of one another. 
   
   
       20 . The heat exchange device according to  claim 7 , wherein the fins have each a first dimension extending in the first direction, and a second dimension extending in the second direction, and wherein a ratio of the second dimension to the first dimension is at least 2:1, preferably at least 5:1. 
   
   
       21 . The heat exchange device according to  claim 9 , wherein the first row is laterally offset from the second row in the second direction. 
   
   
       22 . The heat exchange device according to  claim 10 , wherein the fins of the at least one of the first row and the second row are substantially aligned in a linear and/or a straight manner. 
   
   
       23 . A method of manufacturing the heat exchange device according to  claim 12 , comprising the steps of:
 a) providing a base and a plurality of fins, wherein at least one of said fins comprises a multi-port tube with a plurality of channels;   b) thermally coupling the plurality of fins to the base such that a matrix is formed, wherein said matrix comprises at least a first row and at least one second row,   c) introducing a working fluid into at least one of the plurality of fins and the base; and   d) preventing the working fluid from escaping off the at least one of the plurality of fins and the base.   
   
   
       24 . A power module comprising at least one heat emitting device such power electronic and/or electric device that is thermally connected to at least one heat exchange device according to  claim 12 .