Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Romaric Lenoir

Fabrice Tauvron

Denis Even

Pierre Faverolle

Marc Tunzini

Pierre-Yves Bilteryst

Jean-Philippe Badey

Alexandre Pfleger

Dirk Schulte

Régis Seidenbinder

Sébastien Arrighi

Thierry Hevia

Karine Stofleth

Yves Ducrocq

The invention relates to a device for assembling, by screwing, a drive member, such as a drive pulley, with a shaft intended to be coupled to the rotor of a rotating electrical machine, the device including an additional, welded connection. According to the invention, this method of producing the assembly device is characterized in that the drive member screwed onto its shaft in the vertical position is welded from below. The invention can be used for rotating electrical machines, such as an alternator or a starter-alternator of a motor vehicle.

Method of assembling drive member with shaft coupled to rotor of rotating electrical machine

An electrical rotating machine rotor, in particular for a motor vehicle, comprising a central shaft, an annular core coaxial with the shaft and two polar wheels which are axially arranged on either side of the core, of the type wherein the shaft includes at least one drive section which is axially force-fitted into a fixing bore of at least one component of the rotor so as to secure in rotation at least one of the two polar wheels of the rotor to the shaft, an intermediate sleeve being radially interposed between each polar wheel and the central shaft, and on which sleeve is mounted said polar wheel. The invention also concerns a method for making such a rotor.

Rotor for an electrical machine comprising an intermediate sleeve interposed between at least one polar wheel and a shaft on which it is mounted

A method for producing a claw-pole rotor, including: a step of mounting polar wheels on the shaft in such a way that each tooth of a polar wheel is located in the existing space between two consecutive teeth of the other polar wheel; a step of machining the lateral faces facing two adjacent teeth, whereby an axial groove is machined in each lateral face; and a step of mounting a magnetic element between two adjacent teeth such that the magnetic element is received in the axial grooves. The method is characterized in that the step of machining lateral faces is carried out before the step of mounting polar wheels on the shaft. The invention also relates to a rotor obtained by such a method.

Method for producing a rotor comprising a step of machining grooves in the teeth of the poles, and rotor obtained by said method

This process for assembling conductive segments () of a rotor or stator winding of a rotary electrical machine comprises the stages consisting in inserting the conductive segments () in slots arranged in a core () of the rotor or of the stator in such a way that the conductive segments project beyond the latter by their free ends, and in welding the conductive segments in pairs by their projecting free ends to form a winding () around the rotor or the stator. The conductive segments each being formed by a wire of electrically conductive material covered with a layer of electrically insulating material, the layer of electrically insulating material is eliminated, in the zone in which the conductive segments are welded, by the means used to weld the latter. Application to the assembly of conductive segments of a rotor or stator winding of a motor-vehicle alternator.

Method for assembling conductive segments of a rotor winding or stator winding in a rotary electric machine

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Sainte Cecile, France

Romaric Lenoir