| 摘要 |
<p>1. Electric motor of a bladed electric fan for a car, having a yoke (3) in the shape of a bell, at the inside periphery of which there is arranged a stator (10) and at the centre of which there is secured a bearing (5) directed towards the inside, a rotor (11) fixed to the outside periphery of a sleeve (6) which surrounds a section of this bearing and which is fixed in rotation with a shaft (2) engaged in this bearing and with a collector (8), brushes (9) which are each urged by a spring (15) in the direction of the collector (8), characterized in that the bearing (5) carries, in the vicinity of its end oriented towards the yoke, a circular projection (5a) bearing against the inside of the bell close to its centre, in that the collector (8) is fixed to the sleeve (6) fixed in rotation with the shaft, in that the sleeve has a part (6a) of widened section, of which the end is close to the projection (5a) and which carries the rotor (11), and in which this section of the bearing (5) is mounted such that the centre of gravity of the rotating part of the motor as a whole is situated in the zone of this bearing.</p> |
