Heat exchanger comprising a water tank and a plastic tubular plate

摘要

Heat exchanger comprising a water tank and a plastic tubular plate, with enlargements forming piping elements on the tubular plate, the peripheral zone of which has an assembling face for fixing the water tank by friction welding and at least one groove provided along the assembling face and used as a receiver for excess welding material. The peripheral zone 2 of the tubular plate 1 comprises a plurality of recesses 3 which are evenly arranged and separated by ties 5. The invention makes it possible to reduce the weight of the heat exchanger and to increase the stiffness of the tubular plate. <IMAGE>