Method for inserting a coil in a polyphase rotating electrical machine stator, and associated stator

A technology of coil insertion and electric motors, applied in the manufacture of motor generators, prefabricated windings embedded in motors, electric components, etc., can solve problems such as damage to product quality

Active Publication Date: 2007-12-05
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The force does not transfer well from one phase to the other
Under certain conditions this may impair product quality

Method used

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  • Method for inserting a coil in a polyphase rotating electrical machine stator, and associated stator
  • Method for inserting a coil in a polyphase rotating electrical machine stator, and associated stator
  • Method for inserting a coil in a polyphase rotating electrical machine stator, and associated stator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0087] The insertion method is adapted to the sawtooth coil 50 to be inserted into the generator or motor vehicle generator / starter stator 1 .

[0088] The stator 1 comprises a cylindrical sheet metal pack 10 ( FIG. 10 ) having an axial axis of symmetry 20 ; and an axial recess 30 formed on the radially inner surface 11 of the sheet metal pack 10 . The recesses 30 are separated from each other by axial ribs 35 called teeth ( FIGS. 11A , 11B ).

[0089] These recesses 30 pass axially through the sheet metal pack 10 with the central hole, since they extend over the entire axial length of the sheet metal pack 10 and are radially open on the inside and at two opposite axial ends.

[0090] Coil 50 includes a plurality of phase windings 70, each winding including at least one conductive continuous wire 50 (Figs. 3 and 4). The cable is for example made of copper covered with an insulator such as enamel.

[0091] The phase windings 70 typically comprise a single wire, or two paralle...

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PUM

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Abstract

The invention concerns a method for inserting a corrugated coil in an alternator stator, the coil comprising a number of wires (60), each designed to form around the inner surface of an assembly of plates a spiral including a number of turns (73) corresponding each to one turn of the inner surface. The method includes forming each wire (60), the latter being configured into a succession of recesses (71) comprising two lateral branches (711) designed to be inserted each into a slot (30); and inserting the turns (73) of each wire into a series of slots (30) of the stator, the turns of the various wires (60) being radially superimposed in a predetermined sequence. The invention is characterized in that the wires (60) are inserted in the slots (30) simultaneously, the turns (73) of the various wires (60) alternating in the predetermined stacking sequence.

Description

technical field [0001] The present invention generally relates to multiphase rotating electrical machines, such as generators or motor vehicle generators / starters. [0002] More precisely, the present invention according to its first aspect relates to a method of inserting a sawtooth coil into a stator of a rotating electrical machine, such as an electrical generator or motor vehicle alternator / starter, the stator comprising a sheet metal pack with a central hole and an axis of symmetry and a recess axially passing through and disposed on the radially inner surface of the sheet metal pack; a coil comprising a plurality of phase windings, each winding comprising at least one conductive continuous cable, each cable for A spiral is formed around the inner surface of the sheet metal pack, the spiral comprising several loops, each loop corresponding to a turn of the inner surface, the method comprising the steps of: [0003] - forming each winding, each wire of which forms a serie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/06H02K15/04H02K3/12
CPCH02K15/0435H02K15/06Y10T29/49009H02K3/12H02K15/066H02K15/068
Inventor 丹尼斯·埃文让-皮埃尔·乔乔伊
Owner VALEO EQUIP ELECTRIC MOTEUR
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