Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Valeo Electrification

Henri Delianne

Pierre-Yves Bilteryst

David Margueritte

Eric Jozefowiez

Sylvain Perreaut

Patrice Balthaze

Michel Bocquel

Herve Ribot

Mohamed El-Ghazal

Hubert Debruyne

Jimmy Chaillou

Julien Battut

Lionel Delecroix

Franck Mouret

Olivier Mechin

Laurent Odin

Ahmed Rebai

Krzysztof Kempisty

Mohamed El Ghazal

Hervé Ribot

Aurélien Ciapin

The present invention relates to a motor vehicle rotary electric machine () drive assembly, the drive assembly comprising a rotor shaft () extending along a longitudinal axis (X) and a connecting piece () providing connection between the shaft and the torque transmission system comprising a bore () for the passage of the rotor shaft, the drive assembly being characterized in that the bore comprises a first wall () extending axially and a cylindrical second wall () extending axially in alignment with the first wall, and in that the rotor shaft comprises: &#x2014;a first surface () extending axially and cooperating with the first wall of the bore to centre the connecting piece around the rotor shaft; and&#x2014;a second cylindrical surface () extending axially and provided with knurling, with a diameter (A) greater than the diameter (A') of the second wall of the bore, the connecting piece being force-fitted onto the rotor shaft by means of the knurling.

Motor vehicle rotary electric machine drive assembly

A stator of a rotary electrical machine has a stator body formed by a stack of metal sheets. The stator body is delimited by inner and outer radial surfaces. Notches in the stator body extend axially. Each notch has a notch base and a notch opening, and the notch opening is on the side of the inner radial surface. A stator winding is supported by the stator body, and the winding has a plurality of winding parts. Each part is accommodated in one of the notches. Each of the notches at the notch opening has a closure element. Each winding par in a notch is retained between the notch base and the closure element. The closure elements are formed by offsetting at least one of the metal sheets of an adjacent notch in the direction of the notch.

Method for making stator of rotary electrical machine

A rotary electric machine stator () includes a stator body () and a stator winding () supported by the stator body (), in which the stator body extends around an axis (X) while being delimited by an internal radial surface () and an external radial surface (), said stator bodies having a plurality of teeth () formed respectively between two slots () arranged in said stator body from the internal radial surface and extending axially to receive at least one stator winding element (). The stator has at least one deformed tooth () which comprises, at its loose end () helping to define the internal radial surface, at least one protrusion () extending across an adjacent slot, said protrusion () being obtained by material deformation of said deformed tooth ().

Rotary electric machine stator having deformed teeth and a plurality of bosses to secure windings

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

A rotor (), especially for an electrical rotating machine, for example for an alternator, comprising an electric winding () formed by at least one electric wire (), the wire comprising: at least one first portion () wound as at least one turn of the winding; a transverse section with at least one flat () along the first portion; at least one second portion () allowing the connection of the winding to an electric circuit; and an essentially circular transverse section along the second portion.

Rotary electrical machine for motor vehicle

A rotary electrical machine comprising a front magnet wheel, a rear magnet wheel, and a shaft comprising four sections with respective diameters (D, D, D, D), distributed axially, wherein:

Rotary electrical machine comprising shaft with stepped diameters, and method for assembly of the machine

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

Rotor an alternator or alternator-starter type comprises two pole wheels including a series of axial claws having a generally trapezoidal shape that extend axially from the edge of the outer radial end of one pole wheel towards the other pole wheel. The rotor comprises an interpolar magnetic assembly in the interpolar space between a first claw of a first pole wheel and a second claw of a second pole wheel. The magnetic assembly comprises two first faces defined by first and second free ends. A side face is also provided, such that the adjacent side face faces same, the side face comprising third and fourth opposing ends between which the magnet is in contact. The side faces of the first and second claws define a reduction in cross-section from one of the free ends of the magnetic assembly extending towards a claw head end along a side facet.

Claw rotor with reduced cross-section, and alternator comprising rotor of this type

A claw rotor () provided with an insulator () for a field coil () and a rotary electric machine equipped with such a rotor, the insulator comprising a plurality of projecting petals () intended to engage with the inner inclined periphery of a claw (). Each of the petals () includes: a base () solidly connected to an associated cheek (), side edges (), and an end (). The claw-pole rotor () is wherein each petal () has a thickness (e) at the side edges () which increases from the base () to the end ().

Growing community of inventors

Maresville, France

Henri Delianne