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

Rotor of electric machine

A technology of rotors and rotor laminations, which is applied in the direction of electric components, electromechanical devices, electrical components, etc., can solve problems such as production errors, complex shapes, compatibility data transmission misunderstandings, etc., to avoid technical problems and misunderstandings, and reduce torque fluctuations , The effect of reducing the risk of production errors

Pending Publication Date: 2022-06-07
VALEO EAUTOMOTIVE GERMANY GMBH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage here is that the outer contour thus produced is the result of mathematical calculations and has a relatively complex shape
This complexity creates problems with data transmission on the one hand and rotor production on the other
In particular, compatibility issues between various software platforms and misunderstandings in data transfer between the development department and the production line lead to production errors
Also, not every machine—even computer-controlled ones—is capable of producing complex shapes
Ultimately, what is missing is a simple description of the outer contour of the rotor or rotor laminated core, which on the one hand reduces torque fluctuations during operation of the motor, but on the other hand allows simple data transmission and simple production of the rotor or rotor laminated core

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
  • Rotor of electric machine
  • Rotor of electric machine
  • Rotor of electric machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Initially, it is stated that the same components in different embodiments have the same reference numbers or the same component names, and in some cases have different numbers. The disclosure of a component contained in the specification may be correspondingly transferred to another component having the same reference symbol or the same component name. In addition, the position data selected in the description, such as "top", "bottom", "rear", "front", "side", etc., are related to the graphics directly described and illustrated, and when the position is changed, it should be Move to the new location accordingly.

[0041] figure 1 A schematic half-section of the electrical machine 1 is shown. The electric machine 1 comprises a shaft 2 with a rotor 3 thereon, wherein the shaft 2 is mounted by (roller) bearings 4a, 4b so as to be rotatable relative to the stator 5 about an axis of rotation A. In this example, the rotor 3 has a plurality of rotor laminations (not shown i...

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

A rotor (3) for an electric machine (1) is described, comprising a rotor lamination core (6) divided into a plurality of sectors (B), in each sector there is arranged a permanent magnet assembly (4) having two first permanent magnets (13a, 13n) arranged in a V-shape and positioned symmetrically with respect to a plane of symmetry (C) dividing the sector (B) into two half-sectors (D, D '). The outer contour (E) of the rotor lamination core (6) extends symmetrically with respect to the plane of symmetry (C) in each sector (B) and is formed in one half sector (D, D ') by at least three different radii having the same number of different center points, an electric machine (1) having such a rotor (3) and a vehicle (17) having such an electric machine (1).

Description

technical field [0001] The invention relates to a rotor for an electric machine, the rotor comprising a rotor lamination core divided into sectors, in each sector a permanent magnet assembly is arranged, comprising two first permanent magnets, from the rotation of the rotor Viewed axially, the two first permanent magnets are positioned in a V-shape and symmetrical with respect to the plane of symmetry dividing the sector into two half-sectors. The outer contour of the rotor lamination core extends symmetrically in each sector relative to the plane of symmetry. Furthermore, an electric machine with such a rotor and a vehicle with such an electric machine are described. Background technique [0002] Due to the arrangement of the permanent magnets provided in the rotor, undesired torque ripples can occur during operation of the electric machine. These problems can be reduced by circumferentially varying the air gap between the rotor and stator. The disadvantage here is that ...

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): H02K1/276H02K1/28H02K5/16
CPCH02K1/276H02K1/28H02K5/161H02K2213/03H02K1/2766H02K29/03H02K2201/03H02K21/12H02K7/006B60K1/00B60K2001/001H02K21/14
Inventor B.多茨C.芬格-艾伯特
Owner VALEO EAUTOMOTIVE GERMANY GMBH