Heat exchanger plate for a heat exchanger

Abstract

A heat exchanger plate for a heat exchanger may include a plate bottom having at least one through opening. The at least one through opening may be arranged in a bottom plane. An opening edge may extend around the at least one through opening. The opening edge may be formed by and protrude laterally away from the plate bottom. The at least one through opening may extend along a normal direction perpendicular to the bottom plane. The opening edge may be structured such that (i) a diameter of the at least one through opening increases away from the bottom plane along the normal direction at least in some sections and (ii) the diameter of the at least one through opening is larger at at least one distance from the bottom plane, which is predetermined with respect to the normal direction, than at the bottom plane.

1 . A heat exchanger plate for a heat exchanger, comprising:
 a plate bottom having at least one through opening, the at least one through opening arranged in a bottom plane;   an opening edge extending around the at least one through opening, the opening edge formed by and protruding laterally away from the plate bottom;   the at least one through opening extending along a normal direction perpendicular to the bottom plane; and   wherein the opening edge is structured such that (i) a diameter of the at least one through opening increases away from the bottom plane along the normal direction at least in some sections and (ii) the diameter of the at least one through opening is larger at at least one distance from the bottom plane, which is predetermined with respect to the normal direction, than at the bottom plane.   
     
     
         2 . The heat exchanger plate according to  claim 1 , wherein the opening edge tapers towards the bottom plane at least in some sections. 
     
     
         3 . The heat exchanger plate according to  claim 1 , wherein:
 the opening edge extends along the normal direction from the bottom plane to an end plane, which extends parallel to the bottom plane; and   the diameter of the at least one through opening is larger at the end plane than at the bottom plane.   
     
     
         4 . The heat exchanger plate according to  claim 1 , wherein an area of an opening cross section of the at least one through opening at the end plane is equal to an area of the opening cross section at the bottom plane. 
     
     
         5 . The heat exchanger plate according to  claim 1 , wherein the diameter of the at least one through opening initially decreases and subsequently increases along the normal direction. 
     
     
         6 . The heat exchanger plate according to  claim 1 , wherein the opening edge is configured as a bent portion of the plate bottom and projects toward an outside by 90° or more. 
     
     
         7 . The heat exchanger plate according to  claim 1 , wherein the opening edge includes an end section that faces away from the plate bottom and extends parallel to the bottom plane. 
     
     
         8 . The heat exchanger plate according to  claim 1 , wherein the opening edge is structured as a dome that extends completely around the at least one through opening in a circumferential manner. 
     
     
         9 . The heat exchanger plate according to  claim 1 , wherein the opening edge is curved. 
     
     
         10 . The heat exchanger plate according to  claim 1 , wherein the at least one through opening and the opening edge, in a top down view in the normal direction, have a round geometry. 
     
     
         11 . A heat exchanger, comprising:
 a plurality of plates stacked one on top of the other along a normal direction;   a fluid path defined by at least two plates of the plurality of plates that are disposed adjacent to one another in the normal direction;   wherein at least one of the plurality of plates is configured as a heat exchanger plate including:
 a plate bottom having a bottom plane extending perpendicular to the normal direction; 
 at least one through opening disposed in the plate bottom and extending in the normal direction; and 
 an opening edge extending around the at least one through opening, the opening edge formed by and protruding laterally away from the plate bottom; 
   wherein the opening edge is structured such that, at least in a section of the at least one through opening, a diameter of the at least one through opening increases in a direction extending parallel to the normal direction and away from the bottom plane; and   wherein the opening edge of the heat exchanger plate is connected via at least one of by means of a substance-to-substance bond, a soldered connection, and a welded connection to a plate of the plurality of plates that, is disposed adjacent thereto in the normal direction.   
     
     
         12 . The heat exchanger according to  claim 11 , wherein at least two adjacent plates of the plurality of plates are each configured as the heat exchanger plate. 
     
     
         13 . The heat exchanger according to  claim 12 , wherein:
 at least one of the plurality of plates is configured as an intermediate heat exchanger plate having a through openings that is not surrounded by a laterally protruding opening edge; and   the intermediate heat exchanger plate is arranged in the normal direction between the at least two adjacent plates that are each configured as the heat exchanger plate.   
     
     
         14 . The heat exchanger according to  claim 11 , wherein at least two adjacent plates of the plurality of plates abut one another, in a region of the respective through opening, transversely to the normal direction without overlapping. 
     
     
         15 . The heat exchanger according to  claim 11 , wherein each of the plurality of plates abuts, in a direction transverse to the normal direction, each adjacently arranged plate of the plurality of plates without overlapping. 
     
     
         16 . The heat exchanger plate according to  claim 1 , wherein an area of an opening cross section of the at least one through opening at the end plane is larger than an area of the opening cross section at the bottom plane. 
     
     
         17 . The heat exchanger plate according to  claim 16 , wherein the diameter of the at least one through opening initially decreases and subsequently increases along the normal direction from the bottom plane to the end plane. 
     
     
         18 . The heat exchanger plate according to  claim 1 , wherein the opening edge is configured as a bent portion of the plate bottom and projects toward an outside by 180° or more. 
     
     
         19 . The heat exchanger plate according to  claim 1 , wherein the opening edge includes an end section that faces away from the plate bottom and extends at an acute angle relative to the bottom plane. 
     
     
         20 . The heat exchanger plate according to  claim 19 , wherein the opening edge further includes a curved longitudinal section that extends between the bottom plate and the end section in the normal direction.