HEAT EXCHANGER FOR AN ELECTRICAL COMPONENT, AND ASSEMBLY OF SAID HEAT EXCHANGER AND COMPONENT

A heat exchanger for an electrical component, said exchanger comprising a first body () defining at least a primary channel () and a secondary channel (), which are parallel and adjacent, in which fluid circulates in series from the primary channel () to the secondary channel (), in opposite directions, said first body () having at least one exchange surface for exchanging heat between the fluid circulating in said channels () and said component, a width of the primary channels () being less than a width of the secondary channels ().