Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for producing a rotor assembly for a rotating electrical machine, especially an alternator

A technology of alternators and rotating electrical machines, applied in the direction of electric components, magnetic circuit rotating parts, magnetic circuits, etc., can solve problems such as indistinguishability, and achieve the effect of avoiding confusion

Active Publication Date: 2010-10-27
VALEO EQUIP ELECTRIC MOTEUR
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the two groups cannot be visually distinguished

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing a rotor assembly for a rotating electrical machine, especially an alternator
  • Method for producing a rotor assembly for a rotating electrical machine, especially an alternator
  • Method for producing a rotor assembly for a rotating electrical machine, especially an alternator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] In this manual, figure 1 The arrows "A" and "R" indicate the axial and radial directions, respectively.

[0048] figure 1 A polyphase rotating electric machine 1 is shown, which in this exemplary embodiment of the invention forms an alternator for a motor vehicle. Of course, the electric machine 1 can, if desired, be reversible and form an alternator-starter, which can be operated in electric motor mode to start the internal combustion engine of the vehicle and as an alternator to generate electrical energy.

[0049] The electric machine 1 comprises a housing 10 , a rotor assembly 12 inside the housing and a stator 16 surrounding the rotor assembly 12 , which rotates as one with a rotary shaft 14 having an axis X called the rotor shaft.

[0050] The stator 16 comprises a body 17 formed from a stack of laminations provided with notches for assembling stator windings 18 forming coil ends on either side of the stator body 17 .

[0051] The rotor assembly 12 comprises tw...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for producing a rotor assembly for a rotating electrical machine, especially an alternator, the rotor assembly comprising two rotors (20; 22) defining between themselves at least one inter-rotor space (28) suitable for accommodating at least one magnet structure (30), which comprises at least one index mark, the method comprising the following step: positioning the magnet structure (30) against at least one of the rotors, using the index mark (75) to identify a direction of orientation of the magnetization of the magnet structure.

Description

technical field [0001] The invention relates in particular to a method for manufacturing a rotor assembly for a rotating electrical machine, in particular an alternator. Background technique [0002] French patent FR 2 793 085 describes an alternator for motor vehicles comprising a stator and a rotor. The rotor assembly includes windings and two rotors, each equipped with multiple claws. The rotors define between them, at the position of the claws, inter-rotor spaces, each capable of accommodating permanent magnet structures, in particular made of rare earths. The magnetization direction of these magnet structures must alternate from one interrotor space to the next. For this, the magnet structures are arranged in two different groups according to their magnetization direction. But the two groups cannot be visually distinguished. Special care must therefore be taken to select magnet structures with the correct orientation when they are assembled in the inter-rotor space ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22
CPCH02K21/044Y10T29/49012
Inventor 奥利维尔·加斯皮埃尔-伊维斯·比尔特里斯特亚历山大·弗莱格
Owner VALEO EQUIP ELECTRIC MOTEUR