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Stator of a rotary electric machine with improved magnetic performance

A technology for rotating electrical machines and stators, applied in the direction of magnetic circuits, electrical components, electromechanical devices, etc., can solve problems such as difficult optimal size, and achieve the effect of optimizing magnetic properties and good mechanical resistance

Active Publication Date: 2018-06-08
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, considering the small size of the motor and the required high performance level, it is difficult to provide optimal dimensions for the different components, especially the main body of the stator and the corresponding winding wires

Method used

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  • Stator of a rotary electric machine with improved magnetic performance
  • Stator of a rotary electric machine with improved magnetic performance
  • Stator of a rotary electric machine with improved magnetic performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] figure 1 Shown is an electric compressor 1 comprising a turbine 2 provided with fins 3 which, via an input 4, can suck in uncompressed air obtained from an air source (not shown) and enters the reference numerals via an output 5 Compressed air is discharged after the volute of 6. The output 5 can be connected to a suction distributor (not shown) upstream of the heat engine in order to optimize the filling of the cylinders of the heat engine. In this case, the intake of air takes place in the axial direction, ie along the axis X1 of the turbine 2 , and the discharge takes place in a radial direction perpendicular to the axis X1 of the turbine 2 . As a variant, the suction is radial and the discharge axial. Alternatively, suction and discharge are in the same direction relative to the axis of the turbine (axial or radial).

[0059] For this purpose, the turbine 2 is driven by an electric motor 7 fitted inside the housing 8 . This electric machine 7 comprises a stator ...

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PUM

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Abstract

The invention mainly concerns a stator (9) of a rotary electric machine, in particular intended for an electric compressor for a motor vehicle, the stator (9) comprising: a yoke (28), a plurality of teeth (27) angularly distributed on an inner periphery of said yoke (28), a plurality of slots (29) each defined by two adjacent teeth (27), a winding (17) comprising a plurality of coils (50), each coil (50) being formed by a wire (51) wound around a tooth, characterized in that a ratio between a diameter of a conductive portion of said non-enamelled wire (51), expressed in mm, and a number of turns of each coil (50) is of between 5% and 25%, and in particular between 10% and 20%.

Description

technical field [0001] The present invention relates to a stator for a rotating electrical machine with improved magnetic properties. The invention has a particularly advantageous, but not exclusive, application to electric compressors of motor vehicles. Background technique [0002] In known manner, a rotating electric machine comprises a stator and a rotor integral with a shaft. The rotor may be integral with the drive shaft and / or the driven shaft and may belong to a rotating electric machine in the form of an alternator, electric motor or reversible machine that can operate in both modes. [0003] The rotor comprises a body formed by a stack of metal sheets held in group form by means of a suitable fixing system. The rotor includes poles formed by permanent magnets housed in cavities provided in the rotor body. [0004] Furthermore, the stator is fitted in a housing configured to rotate the shaft, for example via bearings. The stator comprises a body formed by a stac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/18H02K3/28H02K1/14
CPCH02K1/146H02K3/18H02K3/28H02K2213/03
Inventor B.瓦尔姆M.拉库图沃
Owner VALEO EQUIP ELECTRIC MOTEUR