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Mechanical-commutator polyphase synchronous electric machine

A commutator, multi-phase current technology, applied in the direction of electromechanical devices, circuits, current collectors, etc., can solve problems such as unreliable supply

Pending Publication Date: 2021-10-01
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These components also rely on materials such as silicon, the supply of which may prove to be unreliable

Method used

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  • Mechanical-commutator polyphase synchronous electric machine
  • Mechanical-commutator polyphase synchronous electric machine
  • Mechanical-commutator polyphase synchronous electric machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0164] figure 1 A cross-section of the electric machine 1 is shown schematically. A traction system for a means of transport, in particular a motor vehicle, can be equipped with the machine 1 .

[0165] In the example in question, the machine comprises a rotor 3 movable in rotation about an axis of rotation X of the machine, and a rotationally stationary stator 4 comprising 2*p magnetic poles. The rotor forms the armature and the stator forms the magnetic field of the motor.

[0166] The machine 1 also comprises a rotationally fixed sheath 5, here consisting of two parts, a front 5a and a rear 5b. The jacket completely surrounds the stator and rotor. The sheath can consist of two parts. The stator 4 is fastened to the front of the sheath, eg by an interference fit.

[0167] In the example in question, the rotor 3 comprises a rotor shaft 10 and a rotor body 11 .

[0168] In the example in question, the rotor shaft 10 passes through a front bearing 13 and a rear bearing 14...

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PUM

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Abstract

Mechanical commutator (40) for electric machine (1) suitable for supplying power via a polyphase current system comprising q phases, where q is a positive integer strictly greater than 1, to a rotary electric machine rotor (3) having 2*p magnetic poles, comprising: - a slip ring (41) that rotates about an axis (X) of the electric machine (X), of elementary pattern equal to 2*pi / (p*q); - at least one pair radially extending brushes, a positive brush (45) and a negative brush (46), suitable for rubbing against the slip ring (41), which are rotatably fixed and each defined over an angular sector, and suitable for connection to one and the same voltage source, in particular a vehicle battery (B), characterized in that the mechanical slip ring (41) comprises n*p*q, where in particular n = 1 or n = 2, conductive strips (60) which come one after the other circumferentially, each strip (60) being defined over an angular sector, adjacent strips being isolated from one another, the strips being distributed in q groups (a', b', c'), all of the strips (60) of one and the same group being electrically connected to one another, the q groups alternating circumferentially, and in that the brushes (45, 46) of one and the same pair are circumferentially offset relative to one another by [(2k+1)*2*pi] / (2*p)], k being a natural integer.

Description

technical field [0001] This invention relates to a mechanical switch for energizing a rotating electric machine with a polyphase current system. The invention also relates to an electric machine for a motor vehicle equipped with such a switch. Background technique [0002] The invention is particularly advantageously applicable in the field of rotating electric machines, such as alternators, starter-alternators, electric motors and reversible electric machines. The invention is also particularly suitable for low power motor vehicle towing, especially for motor vehicle towing with power between 4kW and 25kW, for example between 4kW and 8kW, for example between 15kW and 25kW. [0003] Thus, the invention will particularly likely be advantageously implemented in a low power four-wheel electric vehicle (miniature vehicle), a two-wheel vehicle such as a motorcycle, or a heavy-duty ATV. [0004] A small electric motor for generating vibrations is known from document EP 1037362 A...

Claims

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Application Information

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IPC IPC(8): H02K13/00H02K13/04H02K13/10H02K9/06H02K11/33H01R39/32H01R39/02
CPCH02K11/33H02K9/06H02K13/006H02K13/04H02K13/10H01R39/32H02K2213/03H01R39/04
Inventor N.拉贝G.德沃尼奎K.埃尔巴拉卡S.尤戈维奇J.方特查斯塔格纳N.塔科拉贝特D.内特Y.勒梅图尔B.里斯塔格诺
Owner VALEO EQUIP ELECTRIC MOTEUR
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