Rotatable electrical machine

A technology of rotating electrical machines and rotating axes, applied in electromechanical devices, electrical components, electrical components, etc., can solve the problems of complex production of winding inductors, and achieve the effects of reducing material costs, reducing resistance, and reducing the number of items

Inactive Publication Date: 2016-10-26
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production of wirewound inductors can be complex, requiring expensive raw materials such as copper

Method used

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  • Rotatable electrical machine
  • Rotatable electrical machine
  • Rotatable electrical machine

Examples

Experimental program
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Effect test

Embodiment Construction

[0055] figure 1 A starter 1 for an internal combustion engine of a motor vehicle is schematically shown.

[0056] This DC starter 1 comprises a stator 2a , or an inductor comprising a head 2 on which pole pieces 3 are fastened, and a winding 4 formed by wires 4a wound around these pole pieces 3 . This starter 1 also comprises a rotor 5 , also called an armature, rotatable about an axis of rotation X in a stator 2a. Rotor 5 includes notch 51, and notch includes not in figure 1 Shown is the wound armature wire. if available at figure 2 As seen in , the length Lr of the rotor 5, measured according to the axis of rotation X, is greater than the length Ls of the pole pieces, measured according to the axis X, such that the surface area of ​​the armature is utilized to its maximum from an electromagnetic point of view without increasing the resistance of the device . In an example, the length of the pole piece measured according to the axis X is greater than 90% of the length o...

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PUM

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Abstract

The invention relates to a rotatable electrical machine (1), particularly for a motor vehicle starter. Said machine has an axis of rotation (X) and comprises a stator (2a) including: a generator field coil (4), including at least one wire (4a) comprising aluminum; and at least one pole shoe (3), including a winding core (31) whereon at least part of the stator winding is formed. The core has a center and a perimeter having at least one curved portion when observing the perimeter along an observational axis perpendicular to the rotational axis and through the center of the core.

Description

technical field [0001] The invention relates in particular to a rotating electric machine, reversible or not, in particular a starter for a motor vehicle. Background technique [0002] The starter consists of an induction rotor and an inductance stator coaxially fitted. The rotor is integral with the drive shaft rotating in the housing. The stator has a plurality of magnetic poles, which are arranged on the inner circumferential surface of the shell, and are composed of magnetic poles wound with inductance wires, together with components to form a wound inductance. [0003] The production of wirewound inductors can be complex, requiring expensive raw materials such as copper. Copper is used for wirewound inductors due to its good electrical conductivity. It is possible to replace copper with other less expensive materials if the reduction in electrical properties can be compensated. [0004] A starter is known from US patent US 3 877 142, which comprises pole cores and w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14H02K3/02
CPCH02K1/146H02K3/02H02K2213/03H02K1/24H02K3/18H02K3/28H02K23/52
Inventor N.拉比R.安德鲁克斯
Owner VALEO EQUIP ELECTRIC MOTEUR
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