Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Jean-Pierre Chochoy

Alain Defebvin

Denis Bodin

Michel Jaze

Denis Even

Nicolas Langlard

Ludovic Darras

Xavier Dunesme

Olivier Luittre

Jérôme Fournier

David Desmet

Stéphane De Clercq

Arnaud Laxenaire

Stéphane DeClercq

Francis Framery

A rotary electrical machine comprising a rotor and a stator (). The stator comprises a tooth () delimited by notches (), and a winding composed of n&#xd7;M wires (), wherein n corresponds to a number of phases and is equal to at least 2, and M corresponds to a number of continuous electric wires for each phase () and is equal to at least one. The winding is composed of successive turns, each of the successive turns comprising n&#xd7;M wires wound simultaneously in n of the notches () to be inserted in n series of notches. Each of the series of the notches is dedicated to a single phase, and for each of the successive turns, each of the assembly of the M wires () constitutes a phase and is inserted in the same series of the notches ().

Winding for rotary electrical machine

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

A method and device for winding a rotor or a stator (), of a rotary electrical machine, having a series of teeth () which are delimited by notches (). In each notch there are inserted M continuous electric wires () constituting a turn; M being equal to 1 or more, characterised in that n&#xd7;M wires () are wound simultaneously in a number n of notches (), n corresponding to the number of phases and being &#x2267;2. The assembly of the M wires () constituting a phase, being inserted in a single notch (). The device for winding has at least two carriages (), with a series of teeth, delimited by n notches (). And, likewise corresponding to the winding, each set of M continuous electric wires () constituting a turn, is characterised in that M&#xd7;n wires () are inserted simultaneously in the extension of the n notches () of the rotary electrical machine in the n notches () in the respective carriages (). All of the M&#xd7;n wires () are bent together at least twice by bending the carriages () relative to one another, and all of the M&#xd7;n wires () thus bent are folded back in the following successive nnotches () of the rotary electrical machine.

Winding for a rotary electrical machine

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

A method of inserting an undulating winding into an alternator stator. The method comprises the following steps consisting of shaping each phase winding into a succession of crenels comprising two lateral branches which are intended to be attached at a position for reception in a slot, positioning the windings on an insertion tool and inserting the turns into the slots of the stator in the reverse order to the winding order. The windings are wound around the insertion tool simultaneously, and the turns that succeed one another in a determined winding order belong alternatively to different windings.

Method of inserting an undulating winding into a stator

A rotating electrical machine stator comprising an annular cylindrical body including axial grooves, and at least one phase winding including corrugated turns of wire, the phase winding comprising a first outer half-phase and a second inner half-phase which are radially superimposed, the first outer half-phase including outer leading-out wires projecting from the radial walls of the body and the second inner half-phase including outer leading-out wires projecting from the radial walls of the body. The invention is characterized in that for each phase winding, the wire length of each turn of the inner half-phase is greater than the wire length of each turn of the outer half-phase. The invention also concerns a phase winding designed to be mounted in such a rotor.

Phase winding for a rotating electrical machine stator and stator equipped with same

Rotary electric machine and method for making windings

Growing community of inventors

Cremarest, France

Jean-Pierre Chochoy