Heat Exchanger for Small Components

Abstract

The invention relates to a heat exchanger for small components through which a fluid may flow, made from several individual pieces, exclusively produced by forming and joined to each other, to an inlet channel, a planar heat exchange element and an outlet channel. The heat exchange element comprises an upper and lower side which may be connected to at least one heat source, characterized in that the inlet channel is made from a metal connector tube which continuously enlarges towards the heat exchange element on the inlet side up to the total cross-sectional flow area of the inlet side and face of the heat exchange element and the outlet channel continuously tapers away from the heat exchanger on the outlet side from the total cross-sectional flow area of the output side end face of the heat exchanger element to a metal connector tube. The heat exchange element comprises a channel-like inner structure running in the flow direction to increase the heat transfer, which runs within the element from the lower side to the upper side.

1 . A heat exchanger ( 1 ) for small components, through which heat exchanger ( 1 ) a fluid can flow, comprising a plurality of individual parts which are produced exclusively by forming and are firmly connected to one another by joints to form an inlet channel ( 2 ), a flat heat-exchanging element ( 3 ) and an outlet channel ( 4 ) with the heat-exchanging element ( 3 ) having an upper face and lower face which can be connected to at least one heat source, 
     characterized,
 in that the inlet channel ( 2 ) comprises a metal connecting tube ( 21 ) which on the input side widens continuously towards the heat-exchanging element ( 3 ) up to the entire cross-sectional area through which flow can pass of the input-side end face of the heat-exchanging element ( 3 ), 
 in that the outlet channel ( 4 ), starting from the heat-exchanging element ( 3 ) tapers on the output side continuously from the entire cross-sectional area through which flow can pass of the output-side end face of the heat-exchanging element ( 3 ) to a metal connecting tube ( 41 ), and 
 in that the heat-exchanging element ( 3 ) has a channel-like internal structure ( 31 ) in order to increase the heat transfer, which internal structure ( 31 ) runs in the flow direction and extends from the lower face to the upper face in the interior. 
 
   
   
       2 . The heat exchanger as claimed in  claim 1 , characterized in that the internal structure ( 31 ) is designed such that the fluid flow is constant over the cross section. 
   
   
       3 . The heat exchanger as claimed in  claim 1 , characterized in that the internal structure ( 31 ) of the heat-exchanging element ( 3 ) continues in the inlet channel ( 2 ) and/or in the outlet channel ( 4 ). 
   
   
       4 . The heat exchanger as claimed in  claim 1 , characterized in that the internal structure ( 31 ) is composed of continuous ribs which form channels. 
   
   
       5 . The heat exchanger as claimed in  claim 1 , characterized in that the internal structure ( 31 ) is composed of rods or pyramids projecting from the inner wall. 
   
   
       6 . The heat exchanger as claimed in  claim 1 , characterized in that the heat-exchanging element ( 3 ) is formed integrally. 
   
   
       7 . The heat exchanger as claimed in  claim 1 , characterized in that the inlet channel ( 2 ) the heat-exchanging element ( 3 ) and the outlet channel ( 4 ) are arranged aligned. 
   
   
       8 . The heat exchanger as claimed in  claim 1 , characterized in that the inlet channel ( 2 ) and/or the outlet channel ( 4 ) run pointed away from the heat source ( 5 ). 
   
   
       9 . The heat exchanger as claimed in  claim 1 , characterized in that the inner surface is coated.