Abstract: A two-phase or mono-phase heat-exchanger for at least one electronic power component wherein the heat-exchanger supports a plurality of heat exchange tubes, each having a heat exchange fluid therein, and wherein said heat-exchanger includes at least one rigid plate provided with zones for receiving portions of the heat exchange tubes and wherein the heat-exchanger includes opposite edges which are formed so as to be secured to edges of adjacent heat-exchangers in such a manner that front and rear surfaces of the at least one rigid plate of each heat exchange unit are coplanar when one heat-exchanger is secured to an adjacent heat-exchanger.

Abstract: A heat exchanger for electronic components and electro-technical equipment which includes a housing having an inner space through which a heat exchange fluid may pass wherein the housing is formed by opposing covers between which a stack of plates is mounted with each plate having openings profiled and oriented so as to allow the passage of the heat exchange fluid therebetween and which plates are connected to the covers by joining pieces.