Valeo Equipments Electriques Moteur

Valeo Equipements Electriques Moteur

Régis Seidenbinder

Fabrice Tauvron

Jean-Claude Matt

Pierre Tisserand

Pierre Chassard

Marc Tunzini

Lilya Bouarroudj

Olivier Gas

Christophe Louise

Luc Kobylanski

Blaise Rouleau

Romaric Lenoir

David Delplace

Olivier Grammont

Christophe Dugue

Karine Stofleth

Victor Dos Santos

Frédéric Boussicot

Abdelaziz Azizi Samir

Jie Wen

Ruth Lopez

Romaric Guillard

Cyrille Dheripre

Bryann Lafabrie

Christophe Porte

Olivier Danger

Yves Ducrocq

Claire Serdin

An architecture of interconnected electronic power modules for a polyphase rotary machine, includes electrically interconnected power modules () and a connector () including one or more layers formed by pluralities of conductive traces borne by plates, such as to connect the power modules (to) to one another and to electrical elements of the rotary machine. The power modules (to) include a plurality of connection elements (to) brazed directly to components of the power modules (to) and, in the upper part, to conductive traces of the connector (). This architecture includes a heat sink () equipped with open cavities (to) for receiving the power modules (to). A polyphase rotary machine is also provided using such an architecture, in particular a dual three-phase alternator with synchronous rectification.

Architecture of interconnected electronic power modules for rotary electrical machine, and rotary electrical machine comprising architecture of this type

A method for interconnecting electronic power modules of a polyphase rotary electric machine. The power modules are disposed in open cavities of a heat sink and comprise substrates on which are provided MOSFETs of a synchronous rectifier bridge and integrated control circuits. The method comprises the production of: a planar connector () including at least one layer of conductive traces (); a plurality of interconnection elements () arranged in multiple geometric formations and ultrasonically welded or brazed (S) directly to the substrates () and/or the MOSFETs; and openings () in the planar connector () allowing the free passage of the upper ends () of the connection elements () and a mechanical contact with the conductive traces (). The electrical connections are obtained by means of laser () transmission welding (S) or electric resistance welding.

Process for interconnection of electronic power modules of a rotary electrical machine, and assembly of interconnected power modules obtained by means of this process

An alternator includes a stator S, a rotor R and a transistor bridge, which form synchronous rectification. The synchronous rectification is in the form of an over-molded mechatronic housing (), and the mechatronic housing includes an electronic power substrate () and power connection terminals (), (). Electronic chips (A,B) are implanted on the electronic power substrate, and at least one of the power connection terminals is connected electrically to the electronic chip by means of at least a first soldered connection wire (). According to one embodiment, the electronic power substrate is of the IMS, DBC or PCB type.

Alternator with synchronous rectification equipped with an improved electronic power module

A device for rectifying the current of a rotary electric machine comprising a bearing () with through openings () for a coolant, that comprises at least one module () including a holder () for holding current rectifying members () having the same phase as the machine, said holder () including a heat sink () with vanes () at least partially covering an opening () in the bearing (). A rotary electric machine including such a current rectifying device. Application: alternators of automotive vehicles with internal ventilation.

Device for rectifying current of electric rotary machine and rotary electric machine including such device

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Choisy le Roi, France

Régis Seidenbinder