Vehicular AC generator and manufacturing method therefor.

摘要

A vehicular a.c. generator (1) comprising a housing having a cooling surface (6), a rotor (11) rotatably supported within the housing, a stator (3) with a coil end (13) supported by the housing to have a clearance therebetween, and a thermally conductive filling material filled in the clearance for conducting heat from the stator coil end to the housing. The housing is provided with a filler passage (21) communicating the clearance to the exterior of the housing for introducing therethrough the filling material (5) into the clearance. Therefore, the filling material (5) is injected through the filler passage into the clearance after the stator is assembled into the housing.