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Motor rotor and related motor

一种转子、磁体的技术，应用在电机转子领域，能够解决增加转子生产成本、组装方法复杂化等问题，达到组装方法容易、成本低的效果

Active Publication Date: 2016-08-24
ALSTOM TRANSPORT TECH SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, adding insulating material (or spacer material) around the magnets on each magnet surface increases the production cost of the rotor and complicates the assembly method

Method used

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  • Motor rotor and related motor
  • Motor rotor and related motor
  • Motor rotor and related motor

Examples

Experimental program
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Embodiment Construction

[0024] “Axial” mentioned herein below can be understood as a direction extending along the rotation axis of the motor 1 , and “radial” is a direction perpendicular to the rotation axis.

[0025] Such as figure 1 As shown, the motor 1 is composed of a stator (not shown) and a rotor 2 . The stator is fixed on the casing, and the rotor 2 is fixed on the shaft and can rotate around the axis relative to the stator.

[0026] The rotor 2 comprises a hub (not shown), a substantially cylindrical laminated tubular assembly, and a plurality of magnetic elements 4, wherein the hub is fixed in rotation on the shaft by means of drive means (not shown); essentially A cylindrical laminated tubular assembly extends along the axis of rotation, surrounds the hub, and is tightly fitted to the periphery of the hub at each axial end; the plurality of magnetic elements 4, such as permanent magnets, Distributed on the inner perimeter (inner perimeter) of the laminated assembly.

[0027] The magnet...

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PUM

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Abstract

A motor rotor includes a substantially cylindrical body, which conducts a magnetic field, and defines at least one housing receiving a group of magnets that includes at least two permanent magnets. Two circumferentially adjacent magnets of the housing are separated from one another by an air knife.

Description

technical field [0001] The invention relates to a rotor for an electrical machine comprising a substantially cylindrical body conducting a magnetic field and defining at least one housing housing a set of magnets, the set of The magnets include at least two permanent magnets. Background technique [0002] Document EP 2,264,860 describes an electrical machine rotor comprising a tubular laminate assembly and magnets that are "buried", ie do not extend around the rotor. Each housing formed in the assembly houses a set of permanent magnets, each set constituting a pole of the rotor. All the magnets of the same group are covered on their surfaces with electrically insulating material (electrically insulating material), so as to realize the insulation (or isolation) between the magnets and between the magnets and the laminated assembly. [0003] This rotor is not quite as expected. In fact, adding insulating material (or spacer material) around the magnets on each magnet surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
CPCH02K1/2766H02K1/04H02K2201/06H02K1/2753
Inventor A·兰德里亚布鲁诺·瑞金
Owner ALSTOM TRANSPORT TECH SAS
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