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Stator for a rotating electrical machine

A technology for rotating electrical machines and stators, used in the manufacture of motor generators, prefabricated windings embedded in motors, electromechanical devices, etc., can solve problems such as hindering machine operation and disengagement, to simplify tools, reduce the risk of loss, and reduce the need for cleaning. Effect

Pending Publication Date: 2021-01-19
MOTEURS LEROY SOMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such wedges risk disengagement and hinder the operation of the machine

Method used

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  • Stator for a rotating electrical machine
  • Stator for a rotating electrical machine
  • Stator for a rotating electrical machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0115] Figure 1 to Figure 6 A stator 2 of a rotating electric machine 1 is shown, which also has a not shown rotor. In the case of a synchronous motor, the stator can generate a rotating magnetic field that drives the rotor, while in the case of an alternator, the rotation of the rotor induces an electromotive force in the electrical conductors of the stator.

[0116] The examples illustrated below are schematic and do not necessarily consider the relative sizes of the respective constituent elements.

[0117] The stator 2 has electrical conductors 22 arranged in slots 21 formed between teeth 23 of a stator mass 25 . The notches 21 are closed, ie a complete circuit can be formed around each slot 21 without encountering cutouts in the stator mass. The slots 21 are closed on the air-gap side by material bridges 27 and on the opposite side by yokes 29 , each material bridge 27 connecting two consecutive teeth of the stator mass 25 . Yoke 29 and tooth 23 are in one piece. If ...

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PUM

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Abstract

The invention relates to a stator of a rotating electrical machine, comprising a stator mass that has slots in which electrical conductors are housed, inserted axially into said slots, wherein each ofthe slots has an uninterruptedly closed contour.

Description

technical field [0001] The present invention relates to rotating electric machines and, more particularly, to stators of such machines. Background technique [0002] In known stators, the yoke is formed with slots which are completely or partially open in the direction of the air gap in order to allow the introduction of the windings. Typically, half-open slots receive electrical conductors of circular cross-section arranged loosely, while fully open slots receive electrical conductors of rectangular cross-section arranged in an orderly manner. [0003] The known stators can close the slots with non-magnetic wedges. However, such wedges risk disengagement and hinder the operation of the machine. [0004] Patent application FR 3 019 947 describes a stator with a toothed ring having teeth connected to each other by bridges of material and defining between each other slots for receiving coils, the slots are oriented towards The outside is radially open. The opening of the s...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K15/06
CPCH02K1/165H02K15/067H02K1/27H02K3/12H02K3/28H02K15/024
Inventor 雅克·圣-米歇尔
Owner MOTEURS LEROY SOMER
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