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Rotating electrical machine for a motor vehicle

A technology for motor vehicles and rotating electrical machines, applied in electromechanical devices, electrical components, electric components, etc., can solve the problems of reduced number of permanent magnets, expensive magnets, no permanent magnets, etc., and achieve improved performance, high cost, and high output current Effect

Active Publication Date: 2015-03-25
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] - No permanent magnets on the rotor, or a reduced number of permanent magnets, especially those made of rare earths, which can be extremely expensive

Method used

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  • Rotating electrical machine for a motor vehicle
  • Rotating electrical machine for a motor vehicle
  • Rotating electrical machine for a motor vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] figure 1 A compact polyphase alternator A, in particular for motor vehicles, is shown.

[0061] This generator converts mechanical energy into electrical energy and can be reversible. This type of reversible alternator is called an alternator-starter, which makes it possible to convert electrical energy into mechanical energy, in particular for starting the thermal engine of the vehicle.

[0062] This alternator A comprises a housing 1, and inside the housing 1, it comprises a rotor 2 with claws, rotating directly or indirectly integrally with a shaft 3, and a stator 4 surrounding the The rotor 2 has a small air gap.

[0063] The axis X-X of the shaft 3 forms the axis of rotation of the rotor 2 .

[0064] In the rest of the description, radial, transverse and axial orientations are considered with respect to this axis X-X.

[0065] The stator 4 comprises a body 4a in the form of a set of plates provided with notches, for example of the semi-closed type, equipped wit...

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PUM

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Abstract

The invention relates to a rotating electrical machine, in particular to an alternator (A) or to an alternator-starter, for a motor vehicle, comprising: a rotor (2) supporting a front fan (23) at the front and a rear fan (24) at the rear, said rotor being rotatable about an axis of rotation, a stator (4) comprising a stator body and at least one winding placed on the stator body, said winding forming front and rear chignons on either side of the stator body, and a casing (1) in which the stator and the rotor are placed.

Description

technical field [0001] The invention relates in particular to a rotating electric machine, in particular an alternator or alternator-starter of a motor vehicle. Background technique [0002] Patent application FR 2856532 describes an alternator for motor vehicles comprising a stator provided with permanent magnets and excitation windings. The alternator is provided with a fan to cool the alternator. [0003] Patent application FR 2785464 for its part describes an alternator provided with stator windings forming buns on both sides of the stator housing. There is a difference in the axial span of the bun to reduce the operating noise of the air supply. [0004] Patent applications EP 762607 and EP 671802 describe other alternators. [0005] Patent application EP 2157679 describes a synchronous machine. [0006] There is a need for a rotating electric machine, in particular an alternator, having advantages including: [0007] - increased performance, i.e. high output curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/20H02K9/06
CPCH02K9/06H02K2213/03H02K5/207H02K1/243
Inventor M.费克斯J.卢图恩D.考伯特
Owner VALEO EQUIP ELECTRIC MOTEUR