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Electric machine rotor with improved rotor segment interlacing

A technology of torsion interlacing and rotor, applied in the direction of electromechanical devices, electrical components, electric components, etc.

Pending Publication Date: 2022-03-29
VALEO EAUTOMOTIVE GERMANY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, some methods have been proposed for the production of such rotors, but there is no simple possibility to orient the rotor segments, which allows multiple angular positions of the rotor poles and in particular can be made with the same configuration of the rotor rotor plate to achieve

Method used

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  • Electric machine rotor with improved rotor segment interlacing
  • Electric machine rotor with improved rotor segment interlacing
  • Electric machine rotor with improved rotor segment interlacing

Examples

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Embodiment Construction

[0039] Initially, it was stated that the same components in different embodiments bear the same reference numerals or the same component names, but in some cases have different reference numerals. The disclosure of a component included in the specification may be transferred to another component having the same reference symbol or the same component name accordingly. In addition, position data selected in the description such as "top", "bottom", "rear", "front", "side", etc. are related to the directly described and depicted figure, and when the position changes, should be transferred to the corresponding new location.

[0040] figure 1 A half section of a schematically depicted electric machine 1 is shown. The electric machine 1 comprises a shaft 2 with a rotor 3a thereon, wherein the shaft 2 is mounted via (roller) bearings 4a, 4b so as to be rotatable relative to a stator 5 about an axis of rotation x. In this example, the stator 5 has a plurality of stator plates (not s...

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PUM

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Abstract

A rotor (3a.. 3c) for an electric machine (1) is described, comprising a plurality of rotor segments (10a.. 10c, 10a ', 10a' ', 10.. 10 ''') arranged consecutively along an axis of rotation (x) of the rotor (3a.. 3c) and each comprising one or more rotor plates (11). The magnetic poles (A.. D) of two adjacent rotor segments (10a.. 10c, 10a ', 10a' ', 10.. 10 ''') are twisted relative to each other by an angle of staggering (alpha) about the axis of rotation (x) of the rotor (3a.. 3c), wherein the angle of staggering (alpha) is smaller than the polar angle (beta) between the two magnetic poles (A.. D) of the rotor segments (10a.. 10c, 10a ', 10a' ', 10.. 10'''). The rotor (3a.. 3c) comprises at least two first notches (12) which are arranged on the first hole circle (L1) around the axis of rotation (x) of the rotor (3a.. 3c) and which are each twisted relative to one another by an angle (gamma) corresponding to the polar angle (beta) minus or plus the stagger angle (alpha). The invention further relates to an electric machine (1) having such a rotor (3a... 3c) and to a vehicle (18) having such an electric machine (1).

Description

technical field [0001] The invention relates to a rotor for an electrical machine comprising a plurality of rotor segments arranged in succession along the axis of rotation of the rotor, each comprising one or more rotor plates, wherein the poles of two adjacent rotor segments revolve around the rotation of the rotor The axes are twisted relative to each other by a staggering angle. The offset angle is here smaller than the pole angle between two magnetic poles of the rotor segment. The pole angle is obtained by dividing one full revolution (=360°) by the number of poles of the rotor segment. Furthermore, an electric machine with such a rotor and a vehicle with such an electric machine are described. Background technique [0002] In electric machines it is known to twist the rotor segments of a rotor relative to each other in order to obtain, in operation of the electric machine, a torque curve with less torque ripple than that of an electric machine with axially aligned r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22H02K1/276H02K1/28H02K7/04H02K5/16H02K5/173
CPCH02K1/22H02K1/276H02K1/28H02K7/04H02K5/161H02K5/1732H02K2213/03H02K2201/06H02K1/2766H02K29/03B60K1/00
Inventor S.比茨B.多茨C.芬格-艾伯特D.福斯特
Owner VALEO EAUTOMOTIVE GERMANY GMBH
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