Mobile alternator-rectifier combination construction, particularly for automotive vehicles

Mobile alternator-rectifier combination construction, particularly for automotive vehicles, having

• a frame structure (11);
• a stator (23, 24) secured to the frame structure and having an armature winding (24);
• a rotor (26, 27, 28) having a rotor shaft (25);
• two bearings (18, 21) journaling the rotor;
• an end cover (13) secured to one end of the frame and retaining one (18) of the two bearings, and extending transversely to the axis of rotation of the shaft;
• and two groups of rectifier diodes (36, 36') electrically connected to the armature winding,
• two membrane-like disk-shaped sheet metal support plates (15, 35) positioned adjacent the axial end of the shaft remote from said end cover (13);
• each support plate including
• an essentially ring-shaped portion (38) surrounding the shaft and radially projecting fins (39, 39') defining gaps therebetween;
• at least one (15) of the disk-shaped support plates being secured to the frame and the other (21) of said two bearings (18, 21) being secured to the ring-shaped portion (38) of said at least one (15) of the support plates (15, 35);
• one group of rectifier diodes (36, 36'), each, being secured to a respective support plate and with the diodes (36, 36') of the groups of rectifier diodes being located on the projecting fins (39, 39') of the respective disk-shaped sheet metal support plates (15, 35);
• whereby at least one support plate forms the support for the other bearing (21) and a heat sink and heat dissipation element for the diodes thereon;
• electrically insulating means (43, 43') interposed between said support plates including electrical terminal holding means (49);
• and
• resilient contact rails (48) forming connection means between the diodes of the groups of diodes (36, 36'), resiliently pressing against the respectively connected diodes on the associated respective fins.