Rectifier device for three-phase generators in vehicles

A rectifier device for a three-phase generator of a vehicle, said rectifier device comprising a metallic front cooling plate having a front side and a rear side and provided with a hole, and a rear cooling plate provided with an opening, said cooling plates being spaced from each other and extending parallel to each other;

• a plurality of positive diodes arranged on one of said cooling plates and a plurality of negative diodes arranged on another of said cooling plates;
• a printed circuit board made of insulating material fastened between said front and rear cooling plates, said printed circuit board having electrical conductors for connecting said diodes with each other and also with said three-phase generator;
• electrical connection means for making electrical connection with said front cooling plate comprising a nut and a threaded bolt having a flange, an annular shoulder and an axial pin projecting into said opening of said rear cooling plate, said threaded bolt being pressed in said hole in said front cooling plate, and said flange and said shoulder being positioned and dimensioned so that said annular shoulder contacts on said rear side of said front cooling plate, the nut being screwed on said threaded bolt from said front side of said front cooling plate to secure said threaded bolt in said hole;
• and insulating means for electrically insulating said threaded bolt from said rear cooling plate, said insulating means being received in said opening and receiving said axial pin.