Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Denis Even

Pierre Faverolle

Vincent Ramet

Jean Duquesne

Ludovic Darras

Denis Bodin

Jean-Luc Tarrago

Larry Sapotille

Jean-Claude Mipo

Jean-Pierre Chochoy

Alain Defebvin

Mostafa Kadiri

Michel Jaze

Julien Masfaraud

Michel Fakes

Khadija El Baraka

Paul Armiroli

Patrick Rondier

Romaric Lenoir

Sébastien Arrighi

Thierry Hevia

Ryadh Ben Omrane

Sveltislav Jugovic

The invention essentially relates to a method for the production of a winding of a stator () comprising a body equipped with slots (), comprising: a supply step consisting in supplying a winding unit with a bundle of conductors (); and a pre-forming step consisting in moving the winding unit in relation to the bundle of conductors (), such as to obtain a bundle of conductors () having, for each phase winding (E-E), at least two loop structures () and at least three segment structures (), two of the segment structures () being positioned such that they can be disposed in the same slot () of the stator () and the two loop structures () connecting said two segment structures () stacked on the third segment structure ().

Method for production of electrical machine stator comprising preforming step, and corresponding wound stator

The invention relates mainly to an outer stator () for a rotary electric machine, comprising a body () provided with a yoke and teeth (), with slots () being defined between pairs of teeth, as well as a winding comprising conductors having segment structures () inserted inside the slots (). In the stator, the ratio between the width of a slot (L) covered with a slot insulator () and the width of a segment structure () covered with enamel (L) is between 0.9 and 2.

Electrical machine stator with optimized notch filling, and corresponding method for production of the stator

The invention essentially relates to an outer stator () for a rotary electric machine, comprising a body () equipped with a yoke and teeth () arranged on the internal periphery of the yoke (), with slots () being defined between pairs of teeth (), in which the teeth do not have roots and the stator also comprises corners () at the free ends of the teeth () that are curved according to a radius (R), known as the radius of entry (R).

Electrical machine stator with small input radius, and corresponding method for production of the stator

Method for producing the coil of a rotary electric machine stator and stator thus obtained

A method of producing a stator for a rotary electrical machine comprising a body in which axial recesses are produced and comprising a plurality of conductors arranged in the recesses, which comprises a step of depositing conductors on a linear support that comprises transverse recesses, comprising a first phase of depositing conductors in the recesses in the support in order to form a first layer of conductors, and a second phase of depositing conductors in the recesses, in order to form a second layer of conductors that is arranged vertically above the first layer; the first deposition phase and the second deposition phase consists of depositing one and the same conductor on the linear support. The invention also proposes an arrangement of a set of conductors on a linear support obtained at the end of the deposition step.

Method for producing a rotary electric machine stator

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 relates to a device for gripping and transferring a ring of electrical conductors in the form of pins which are used to produce a winding, such as a pin winding. The gripping device (C) is designed to seize the ring from a first element, such as a ring-forming element, and to transfer same into a second element (B), such as an element used to insert the ring into the member that supports the winding to be produced. The inventive device comprises a control cone () which can be moved axially inside a frame () for contact with levers () which are pivot mounted to the frame, such that the levers pivot when the cone is moved. The winding-production system is characterized in that it comprises an autonomous gripping and transfer device (C) which can be separated from the above-mentioned first and second elements (B) and which can be positioned on same in a pre-determined reference position. The invention can be used to produce a stator for an electrically-rotating machine.

Device for gripping and transferring a ring of electrical conductors which is used to produce a winding and a winding-production system employing one such device

An alternator having a rotor and a stator is described. The stator includes a cylindrical body with a plurality of phases. Each of the plurality of phases includes a phase input located at least partially outside of the cylindrical body, where the phase input is formed of a bar. The bar includes a longitudinal surface extending along at least a part of the bar, a first segment crossing the cylindrical body, and a second segment extending from an axial side of the cylindrical body. Each of the plurality of phases further includes a phase output located at least partially outside of the cylindrical body and conducting elements crossing the cylindrical body and forming at two axially opposite sides of the body, respectively, a first chignon and a second chignon. The conducting elements are electrically connected to form at least one winding connecting the phase input to the phase output.

Alternator equipped with stator having twisted inputs

The invention relates to an alternator for a motor vehicle including a stator () equipped with a body () carrying several phases each comprising, on the one hand, an inlet (Eto E') and an outlet (Sto S&#x2032;) installed outside the body () of the stator (), and, on the other hand, electrically conducting elements, which are arranged in a network on either side of the body () of the stator () so as to form a first () and a second (&#x2032;) bun and which pass through the said body, in which the electrically conducting elements are linked together to form the said networks and connect the inlet of the phase to the outlet of the phase by forming at least one winding. According to the invention, one of the buns (&#x2032;), on one side of the body () of the stator (), carries three inlets (Eto E&#x2013;E&#x2032;to E&#x2032;), an electrically conducting linking part () linking the said inlets electrically together.

Motor vehicle alternator

The invention provides a polyphase armature () for a rotary electrical machine, comprising a body () carrying a plurality of phases (to), each of which comprises, firstly, an input (Eto E') and an output (Sto S&#x2032;), each of which is part of an electrically conductive input element and output element respectively, and, secondly, electrically conductive elements () for connecting the input of a phase to the output of a phase and constituting a winding having at least two coils per phase, together with at least one first electrically conductive inversion element () for reversing the circumferential direction of the current in the winding, the said first inversion element being interposed electrically between the two coils, at least one phase winding being provided with at least one electrically conductive second inversion element () for reversing the circumferential direction of the current in the said phase winding, and the electrically conductive output element of the said winding being connected in the electrical circuit that includes the two coils and the two electrically conductive inversion elements. The invention also provides a method of making such an armature. Application: a stator for a motor vehicle alternator.

Polyphase armature for a rotary electrical machine, and its method of manufacture

The invention relates to alternators for a motor vehicle, of which a stator comprises a cylindrical body, several phases each formed by a plurality of electrically conducting elements, the cylindrical body comprising radial slots for accommodating at least four phase-conductor elements forming at least four layers of conductor elements, each conductor element including two branches placed in slots each in a predetermined layer and a head forming a U-shape seen in the peripheral direction, the half of the conductor elements which are engaged by their first branches in a slot being engaged by their second respective branches in the same other slot. According to the invention, at least first and second conductor elements of such half are such that the radii of curvature of the U-shapes of the two conductor elements are substantially identical.

Several phase for a stator of an alternator for a motor vehicle

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

A machine for configuring the winding head of a stator for a rotary electrical machine, which includes U-shaped conductors which are inserted axially into axial slots in the stator body, is of the type comprising a support body together with concentric tubular sleeves. The lower axial end part of each sleeve includes gripping means. The gripping means of each sleeve consist of a set of gripping slots, each of which has a right angled profile in circumferential and axial cross section. Each of these slots receives the free end portion of one conductor, so that rotation of a sleeve produces a single bend at the open end of the axial slot for each conductor in the associated layer of conductors in the stator.

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Paris, France

Denis Even