Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Philippe Lefrancois

Roger Abadia

Pascal Couvert

Benoit Regnard

The invention relates to a protective cover which is intended to be mounted on the rear bearing () of a polyphased rotating electrical machine, such as an alternator or an alternator-starter for a motor vehicle. The inventive cover is of the type that consists of: an outer frame comprising a rear bearing and supporting a polyphased wound stator, the phase outputs thereof being connected to a phase connector (); and a support which is made from an electrically-insulating material, which is mounted in a fixed manner to the rear bearing and which supports the phase connector (). The cover is designed both to support the phase connector and to cover the rear bearing. The invention also relates to an alternator and an alternator-starter comprising one such cover. The invention is suitable for alternators and alternator-starters for motor vehicles.

Protective cover which is intended to be mounted on the rear bearing of a rotating electrical machine, alternator and alternator-starter comprising one such cover

A three-phase alternator for a motor vehicle has a rotor consisting of two pole wheels, each comprising a radial plate and a plurality of projecting teeth. Each tooth has an outer surface and two lateral surfaces, the outer surface being joined to a rear face of the radial plate through an inclined surface. Each tooth is formed with at least one antinoise chamfer adjacent to the outer surface, lateral surface, and inclined surface of the tooth, and adjacent also to the rear face, the antinoise chamfer being inclined by a different angle from that of each of these surfaces to which it is adjacent.

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Créteil, France

Philippe Lefrancois