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Method for producing a wound stator of a rotary electric machine

A technology for winding stators and rotating electrical machines, which is used in the manufacture of motor generators, electromechanical devices, electrical components, etc., and can solve problems such as reduced motor performance and inability to clear enough space.

Active Publication Date: 2017-04-19
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the radial expansion of the jaws is limited by this phenomenon, which thus makes it impossible to clear enough space in the stator groove for the purpose of inserting the next phase winding
[0009] As a result, the grooves are not filled in an optimal manner, so that the fill factor of the groove (i.e. the ratio of the cross-section of the bare wire to the complete cross-section of the recess) and thus the performance of the motor is reduced

Method used

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  • Method for producing a wound stator of a rotary electric machine
  • Method for producing a wound stator of a rotary electric machine
  • Method for producing a wound stator of a rotary electric machine

Examples

Experimental program
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Embodiment Construction

[0041] figure 1 A perspective view is shown of a wound stator 1 of a rotating electrical machine, which may be, for example, an alternator or an alternator starter. The electric machine is preferably designed for implementation in a motor vehicle. It will be remembered that an alternator starter is a rotating electric machine that works reversibly, firstly as a generator for the alternator function, and secondly as an electric motor, especially in order to operate in a so-called stop and start mode (i.e. In the mode of stopping and restarting the engine), start or restart the thermal engine of the motor vehicle.

[0042] This stator 1 comprises a body 2 having the form of an annular cylinder with an axis X, comprising axially stacked plates each having a small thickness. The body 2 is radially delimited by an inner cylindrical surface 21 and by an outer cylindrical surface 22 . The main body 2 is axially delimited by a lower end face 23 and by an upper end face 24 .

[004...

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PUM

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Abstract

The invention relates mainly to a method for producing a wound stator (1), including: a step of preparing a phase winding; an insertion step which includes inserting said phase winding into a corresponding series of notches (5) in said stator (1); and an intermediate step of forming lead out wires of the winding (26) each extending between two notches (5) of each series of the inserted phase windings, by applying a first radial force (F1) from an axis (X) of said stator (1) toward the outside of said stator (1), characterized in that said method also comprises a step of positioning a bearing surface facing at least one notch (5) such as to apply a second radial force (F2) resulting from the application of the first force (F1) from the outside toward the axis (X) of said stator (1).

Description

technical field [0001] The invention relates to a method for producing a wound stator for a rotating electrical machine, and a corresponding wound stator. The invention has a particularly advantageous application for the winding of the stator of a rotating electric machine, such as, for example, an alternator, alternator starter or starter of a motor vehicle. Background technique [0002] In a known manner, a rotating electric machine comprises a stator and a rotor integral with a shaft. The rotor may be integral with the drive and / or driven shaft and may belong to a rotating electric machine in the form of an alternator as described in document EP0803962, or an electric machine as described in document EP0831580. The motor includes a housing that supports a stator. The housing is configured to rotate the rotor shaft, such as through bearings. [0003] The rotor comprises a body formed of stacked metal plates held in group form by suitable fastening systems, such as rivet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/00H02K15/04
CPCH02K15/0037H02K15/0435H02K15/068Y10T29/49009H02K1/146H02K15/026H02K15/08
Inventor S.格雷西耶O.路易特尔N-T.沃G.赫尔特里勒O.勒弗朗索瓦S.佩因达沃因
Owner VALEO EQUIP ELECTRIC MOTEUR