Rotor and method for manufacturing same

A rotor and rotor shaft technology, applied in the field of rotors, can solve the problems of high centrifugal force permeability, durability and use, and achieve the effects of simple salient pole design, simple structure and high salient pole ratio

Active Publication Date: 2017-05-03
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a need for high-speed applications, but high centrifugal forces and permeability issues in different rotor orientations lead to challenges in terms of durability and use

Method used

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  • Rotor and method for manufacturing same
  • Rotor and method for manufacturing same
  • Rotor and method for manufacturing same

Examples

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Embodiment Construction

[0036] The following embodiments are examples only. Although this specification may refer to "one" embodiment in several places, this does not necessarily mean that each reference is to the same embodiment, nor does it mean that a feature is only applicable to a single embodiment. Single features of different implementations may also be combined to provide other implementations. Furthermore, the words "comprising" and "comprising" should be understood not to limit the described embodiments to consist of only those features that have been mentioned, and these embodiments may also contain features / structures that are not specifically mentioned. .

[0037] It should be noted that while the drawings show various embodiments, they are diagrams showing only some structural shapes. It will be apparent to those skilled in the art that the described devices may include structures and shapes other than those described in the drawings and text. It should be understood that some struct...

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PUM

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Abstract

The invention relates to a rotor and a method for manufacturing the same. A rotor (100) of an electric motor (102) comprises a rotor shaft hole (103), first fan-shaped component parts (106), and second fan-shaped component parts (108). The first fan-shaped component parts and the second fan-shaped component parts are alternately distributed around a rotation axis (104) of the rotor (100). The distance from the outer contour of the second fan-shaped component parts (108) to the rotation axis (104) is shorter than that from the outer contour of the first fan-shaped component parts (106) to the rotation axis (104). When observed along the direction of the rotation axis (104), the second fan-shaped component parts (108) overlap the first fan-shaped component parts (106) of other rotor elements (102). The rotor (100) comprises magnetic flux guide pieces (150, 150', 152, 154, 154', 156, 158) which are configured to extend and pass through the rotor (100) between the rotor shaft hole (103) and the periphery of the protruding part of the rotor (100) when observed along the direction of the rotation axis (104).

Description

technical field [0001] The present invention relates to rotors, in particular rotors for electric motors, and methods of manufacture thereof. Background technique [0002] In one of the most common rotor configurations today, magnets are mounted on the surface of the rotor. This structure is simple and easy to manufacture. However, the surface magnets are not well protected and it is difficult to keep them still on the rotor surface especially at high rotational speeds. The magnets are better protected by inserting them into the rotor surface or by covering them with pole shoes. Continuing this development, it is possible to make magnet embedding. The magnets are thus better protected within the rotor than if they were mounted on the surface of the rotor. [0003] One of the easiest and most useful ways to create embedded magnet and synchronous reluctance motors is to use a single piece rotor blade where some magnetic bridges of the structural piece are left during the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22H02K15/02
CPCH02K1/246H02K1/2766
Inventor 杰雷·科莱赫迈宁
Owner ABB (SCHWEIZ) AG
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