Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Sébastien Arrighi

Thierry Hevia

Pierre Faverolle

Dirk Schulte

Michel Aeschlimann

Claudiu Vasilescu

Denis Even

Romaric Lenoir

Serge Masriera

Dominique Sebille

Corinne Volle

The invention is a fan for an alternator adapted to be coupled in rotation to the alternator rotor, and being of the type comprising a wheel part and a plurality of fan blades () extending from the latter, the fan being moulded in a plastics material on an insert () which is preferably of metal and which constitutes the wheel part of the fan and is arranged to provide fastening of the fan on the rotor, being configured so as to constitute a means for increasing the mechanical strenght of the fan; the insert () includes at least a portion of a blade () of the fan. The invention is useful in the manufacture of a high power cooling fan for a motor vehicle alternator.

Alternator fan

Current rectifying equipment for rotary electrical machines has a rear bearing, of the type comprising a plurality of positive diodes () supported by a support () in the form of a plate, a plurality of negative diodes () supported by the rear bearing () of the machine, a device () for connecting the positive and negative diodes together, and structure for generating a forced axial stream of a coolant fluid, the support () for the diodes carrying cooling fins () which extend in the axial stream (F) of the coolant fluid in the radial direction of the machine. The equipment includes means for effecting mixed cooling of the support for the negative diodes by convection and conduction. The invention can be used for alternators for motor vehicles.

Current rectifier assembly for rotating electrical machines, in particular motor vehicle alternator

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

The invention concerns a current-rectifying arrangement for rotary electrical machines of the type comprising a support () for a plurality of positive diodes (), a support for a plurality of negative diodes, forming part of the rear bearing of the machine, and a device for cooling by the creation of a forced axial flow of a cooling fluid through the rectifying arrangement, the support for the positive diodes carrying radial cooling fins () on its front face oriented towards the axis of the machine; the positive diode support device () being produced in the form of at least one moulded piece ('), whose face oriented towards the aforementioned axis carries fine cooling fins (). The invention can be used in alternators for motor vehicles.

Current rectifier assembly for rotating electrical machines, in particular motor vehicle alternators

Growing community of inventors

Versailles, France

Sébastien Arrighi