Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Michel Bocquel

Henri Delianne

Pierre-Yves Bilteryst

Herve Ribot

David Margueritte

Eric Jozefowiez

Sylvain Perreaut

Patrice Balthaze

Hervé Ribot

The method according to the invention involves a hot-forging step and a cold-forging step that occurs after the hot-forging step. A polar wheel () incorporating a plurality of finite chamfers () formed on exterior parts of the polar teeth () is produced during the hot-forging step. According to the invention, the cold-forging step involves substeps of placing the polar wheel in a die, cold die-stamping the polar wheel with a first and a second blow in the axial direction of the polar wheel, upsetting material onto interior parts of the polar teeth () so as to form magnet-housing grooves () and magnet lips ().

Method for forging magnet wheel for motor vehicle alternator using cold forging die, and magnet wheel obtained by this method

An insulating device () of a rotor winding, which includes a device for positioning the insulator relative to a pole wheel including teeth and spaces between the teeth, which comprises at least two feet () on a surface () of the insulator that engages with a surface of the pole wheel, the feet each having at least two separate contacts among the following contacts: contact on a side surface of one tooth; contact on a side surface of an adjacent tooth; contact on an interstitial surface between one tooth and the adjacent tooth.

Rotor coil insulating device

The pole wheel according to the invention is intended for the rotor of a Lundell rotating electric machine. The pole wheel is obtained entirely by forging and comprises a central core provided with a central bore in a central axis of the pole wheel intended to receive a shaft of the rotor, a plurality of pole teeth (10g, 11g) distributed in a regular manner at the circumference of the pole wheel and extending substantially parallel to the central axis of the pole wheel, and an annular part forming a plate and extending between the central core and parts forming bases of the pole teeth. According to the invention, the pole wheel comprises a plurality of reservoirs () provided in the parts forming bases of the pole teeth.

Forged magnet wheel for motor vehicle alternator provided with permanent interpolar magnets

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Cabourg, France

Michel Bocquel