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Rotor pole structure of rotating electrical machine

A technology for rotating electrical machines and rotors, applied to the rotor type of permanent magnets and the field of rotors of rotating electrical machines, can solve the problem of not optimizing the use of permanent magnets 200 to the maximum extent.

Active Publication Date: 2019-02-12
REMY TECHNOLOGIES LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shape of the claw pole pieces 44, 48 used in prior art hybrid motors does not maximize the use of permanent magnets 200

Method used

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  • Rotor pole structure of rotating electrical machine
  • Rotor pole structure of rotating electrical machine
  • Rotor pole structure of rotating electrical machine

Examples

Experimental program
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Embodiment approach

[0093] 1. A rotor for a rotating electric machine, said rotor comprising:

[0094] A first pole piece and a second pole piece each have a respective magnetic hub portion for rotation about an axis, the hub portion of the first pole piece spaced along the axis from the hub portion of the second pole piece;

[0095] A plurality of magnetic first pole fingers and a plurality of magnetic second pole fingers spaced apart from each other and within the first pole piece extending between a hub portion and the hub portion of the second pole piece, each pole finger having a proximal end and an axially opposite distal end, the proximal ends of the first pole finger and the second pole finger respectively connected to one of the hub portion of the first pole piece and the hub portion of the second pole piece, the first pole fingers and the second pole fingers alternate circumferentially around the axis arranged, each pole finger has a respective radially inner surface defining a lumen ...

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Abstract

A rotor for rotating an electrical machine, the rotor comprising first and second pole pieces (44', 48'), each having its own magnetic hub sections (92,96), the hub sections are arranged to rotate about the axis (60) and are spaced along the axis. A plurality of magnetic first and second pole fingers (100', 104') are spaced apart from each other and extend between the hub portions. Each pole finger has a proximal end (148') and an axially opposite distal end (152') connected to a respective hub portion. The first pole finger and said second pole finger alternate circumferentially about the axis, and each pole finger has a respective radially inner surface (184', 192') defining a cavity extending from the distal end to the The end (224) extends axially along the lumen (220). For each pole finger, at each axial position between the distal end and the end of the lumen, the radial distance between the axis on the inside of the lumen and the radially inner surface is substantially greater than the distance between the axis and the radially inner surface on the outside of the lumen. Radial distance between surfaces.

Description

[0001] Priority claims to related applications [0002] This application claims priority to the following patent applications: U.S. Provisional Application No. 61 / 808,991, filed April 5, 2013, entitled ROTARY ELECTRIC MACHINE ROTOR POLE CONFIGURATION Patent application, and US Patent Application No. 14 / 085,241, filed November 20, 2013, entitled ROTARY ELECTRIC MACHINE ROTOR POLE CONFIGURATION. technical field [0003] FIELD OF THE INVENTION The present invention relates to rotating electrical machines, in particular rotors for rotating electrical machines, and more particularly to rotors of the type comprising permanent magnets. Background technique [0004] figure 1 An example of a rotating electrical machine (an AC motor applied to a vehicle) in the prior art is shown, to which the technology of the present invention can be applied. The AC motor 20 has a housing 24 and a shaft 28 supported in the housing 24 via a front rolling bearing 32 and a rear rolling bearing 36 , r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/24H02K1/27
CPCH02K1/243H02K21/044H02K3/325H02K3/528H02K21/048
Inventor M·D·布拉德菲尔德
Owner REMY TECHNOLOGIES LLC
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