Valeo Equipements Electriques Moteur

Valeo Eautomotive Germany Gmbh

Michel Fakes

Jean-Marie Pierret

Roger Abadia

Yannick Le-Meitour

Claudiu Vasilescu

Fabien Guerin

Alexis Hosni

Manuel Falguier

Philippe Baudesson

Julien Masfaraud

Denis Even

Khadija El Baraka

Patrick Rondier

Virginie Leroy

Daniel Richard

Dirk Schulte

Xavier Dunesme

Denis Bodin

Richard Tellier

Jean-Luc Tarrago

Jean Julien Pfiffer

Frédéric Boussicot

Arnoud Smit

Ryadh Ben Omrane

Matthieu Bonnici

Jeremie Lutun

Mathieu Redon

Dominique Caubert

André Sauvignet

Erwan Le Goff

Vincent Foveau

Eric Simon

Laurent Dahine

Sveltislav Jugovic

Michael Hecht

Friedhelm Kuntze

Shaunak Khot

Arunprasad Anbazhagan

Jérémie Lutun

The invention relates mainly to a rotary electric machine for a motor vehicle. The machine () comprises a shaft (); a rotor (); a stator () comprising a body () provided with slots, and a winding () inserted into the slots; a first bearing () and a second bearing () surrounding an assembly formed by the rotor and the stator and each comprising a housing () for rotatably mounting the rotor shaft (). The first bearing comprises a transverse flange () and a cylindrical wall () of axial orientation derived from an outer periphery of said flange. The second bearing comprises a transverse flange () closing the first bearing and at least one rim () projecting from the flange and forming a junction area () where it joins the first bearing. Furthermore, the stator body has a region (Z) of shrink-fitting to the cylindrical wall.

Rotary electric machine with shrink-fitted bearing

An electronic assembly for a rotary electric machine for a motor vehicle is disclosed. The electronic assembly includes electronic component blocks having different thermal dissipation needs, the blocks including a power block and a control block. The assembly also includes a device for cooling the blocks and having a protective cover suitable for covering the power and control blocks. The protective cover includes a first set of openings configured to be positioned opposite a first cooling element coupled to the power block, and opposite the control block, the first cooling element being a first dissipator provided with a base plate, the base plate protruding with respect to the power block to create a first radial flow of cooling air (F) for the power block and a second radial flow of cooling air (F) for the control block.

Electronic assembly for a rotary electric machine for a motor vehicle

A fan of a rotary electric machine. The fan has an axis of rotation and comprises a plurality of blades (). At least one characteristic of the blades is variable in the direction of a circumference of the fan around the axis of rotation for at least four consecutive blades. The at least one characteristic is selected from the group comprising a spacing angle between a straight line passing radially via a characteristic point of one of the blades and the axis of rotation of the fan and a straight line passing via a corresponding characteristic point of an adjacent blade and the axis of rotation of the fan, a height of the blade, a length of the blade, and an angle of inclination between a straight line passing via two characteristic points of a blade, and a straight line passing via two corresponding characteristic points of an adjacent blade.

Fan for rotary electrical machine

The present invention concerns a protective cover () designed to cover power, filtering and control modules of an electronic assembly for a rotating electric machine for a motor vehicle. Said protective cover () is characterised in that it comprises:&#x2014;openings () designed to generate different cooling air streams (F, F, F, F) for heat dissipation requirements of each of the power, control and filtering modules;&#x2014;the openings of the protective cover () being distributed into: a first set of openings () designed to be positioned facing the fins of a first heat sink coupled to the power module; a second set of openings () designed to be positioned facing the control module; the two sets of openings () being separated by a barrier wall () so as to create a first radial cooling air stream (F) for said power module and a second radial cooling air stream (F) for said control module; and a third set of openings () designed to be positioned facing the fins of a second heat sink coupled to condensers of the filtering module so as to create a third radial cooling air stream (F) for said filtering module.

Protective cover for a rotating electric machine for a motor vehicle

A rotating electrical machine, in particular to an alternator (A) or to an alternator-starter, for a motor vehicle, comprising: a rotor () supporting a front fan () at the front and a rear fan () at the rear, the rotor being rotatable about an axis of rotation, a stator () comprising a stator body and at least one winding placed on the stator body, the winding forming front and rear chignons on either side of the stator body, and a casing () in which the stator and the rotor are placed.

Rotary electrical machine for motor vehicle

The present invention relates to an electronic assembly () for a rotary electric machine () for a motor vehicle. Said electronic assembly is characterized by comprising: blocks () of electronic components, the blocks having different heat dissipation needs, the blocks being: a power block (), a filter block (), a control block (), and a device (') for cooling said blocks (); said cooling device (&#x2032;) comprising: a protective cover () suitable for covering the power, filter and control blocks (), said protective cover comprising openings () suitable for generating cooling air flows which differ according to the heat dissipation needs of each of the power (), control () and filter () blocks; and cooling elements () coupled with said protective cover ().

The disclosure relates to a rotating electrical machine (), in particular an alternator or an alternator-starter for a motor vehicle. At least one bearing mount () is provided with at least one opening () opening onto the exterior of the bearing mount. A stator () comprising an electric coil () is provided. This coil includes a plurality of electric conductors, at least one of which includes an end forming an electrical neutral point of the coil. The machine further includes an electrical insulation member () configured to prevent any contact between the bearing mount () and said neutral point-forming conductor end. The insulation member extends at least partially through the opening of the bearing mount and is at least partially outside the bearing mount. The electrical insulation member being furthermore configured to rest at least partially on an outer surface () of the bearing mount.

Rotating electrical machine

The invention concerns a ventilation system for a rotary electrical machine of the type comprising a rotor mounted so as to rotate in a stator and a device for cooling by forced flow of a cooling fluid, such as air, provided with at least one fan fixed to the rotor and an independent fan disposed so as to be decisive for cooling at relatively low speeds of rotation of the rotor.

Forced-fluid flow ventilating system for rotating electrical machines and rotating electrical machine comprising same

Protective bearing and cover assembly, for an internally ventilated rotating electrical machine, has centrally an axially orientated axis and comprises on the one hand at least one electronic component carried by the bearing and protected by the cover having at least one radial opening for the passage of air, at least one axial opening for the entry of air, a generally axially orientated skirt and a generally transversely orientated base part, in which is located the axial air inlet opening, which is offset axially in relation to the radial opening for the passage of air, and on the other at least one shaft for the cooling of the generally axially orientated electronic component; the radial opening for the passage of air constitutes the outlet of the cooling shaft whereas the skirt constitutes one of the internal and upper walls of the cooling shaft. The rotating electrical machine consists of an alternator or a starter-alternator or an alterno-starter comprising such an assembly.

Bearing and cover assembly for a rotating electrical machine and a rotating electrical machine containing such an assembly

A device which is used to cool the power electronics of a vehicle, by circulating a liquid through a cooling circuit which is mounted under a plate bearing the power electronics. According to the invention, the cooling circuit can include deflectors and/or turbulators in order to increase the exchange coefficient between the cooling circuit and the cooling liquid. The invention also relates to a method of producing the device.

Power-electronic-cooling device

The invention relates to a rotating electrical machine, provided with a stator, a cooling device comprising at least one fan that initiates a coolant flow in order to cool and evacuate, to the outside, the heat produced in the machine comprising at least one heat pipe having at least one heat absorption area, and at least one condensation area. Said heat pipe belongs to a device that rectifies the current produced by the stator of the machine et which extends with its condensation area until reaching the flow of the coolant. The invention can be used for alternators or for alternating current starters in automobiles.

Rotating electrical machine, such as an alternator, particularly for an automobile

The invention concerns a rotating electrical machine, in particular an alternator or an alterno-starter for a motor vehicle, comprising: a rotor () centered and fixed on a rotating shaft () supported by at least one rear bearing (), the rear bearing () including radial cooling fluid outlets (); a stator () enclosing the rotor, the stator including a field coil () including windings constituting phases of the electrical machine; an electronic power circuit () connected to the windings of the stator phases; a heat dissipation bridge () including a first surface whereon is mounted the electronic power circuit and a second surface, opposite said first surface and oriented towards the rear bearing, said second surface forming a longitudinal wall of a passageway () for cooling fluid circulation, another longitudinal wall of said passageway () being formed by the rear bearing () supporting the stator wherein the second surface of the heat dissipating bridge () comprises cooling means () arranged in the fluid circulation passage ().

Device for cooling the power electronics integrated at the rear of an alternator or a reverse alternator

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Seclin, France

Michel Fakes