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The rotor of a permanent magnet excited synchronous machine

A synchronous motor and rotor technology, applied in synchronous machine parts, magnetic circuit rotating parts, magnetic circuit and other directions, can solve the problems of complicated manufacturing process, more rotor flux leakage, loss of efficiency of synchronous motor, etc. The effect of high speed

Active Publication Date: 2017-07-14
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages in the aforementioned embodiments are that the manufacturing process is relatively complicated and the structure of the rotor presents an arrangement with more flux leakage
This results in a loss of efficiency for synchronous motors

Method used

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  • The rotor of a permanent magnet excited synchronous machine
  • The rotor of a permanent magnet excited synchronous machine
  • The rotor of a permanent magnet excited synchronous machine

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] figure 1 The shaft 4 is shown in a partial perspective view, on which the laminations RB1 and RB2 are arranged axially in layers. Here, the laminated core RB1 is closed not only in its outer contour 6 but also in its inner contour 14 . That is to say, this layer of the lamination 2 of the rotor 1 comprises integrally formed laminations. Viewed in the circumferential direction, the lower layer of the laminated core 2 has a plurality of lamination sections RB2. The layers in the axial direction are also designed in the same way. Viewed in the circumferential direction, axially extending poles are now formed, with axially extending pockets formed between the lamination sections and the permanent magnets being located therein. The permanent magnets 5 are spaced apart from the shaft 4 by the webs 14 of the laminations RB1 in the region of the lamination sections of RB2 .

[0025] A limited adhesive gap 8 is thus formed there, which is filled with a suitable adhesive for...

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Abstract

The invention relates to a rotor of a permanently excited synchronous machine having: a shaft about which the shaft rotates; a plate stack having an axial layered structure, the respective planes of which are oriented perpendicular to the axis, and wherein the plate stack has at least Two layers of different geometric shapes, one layer (RB1) is provided with a first lamination with a closed outer contour at least on the outer circumference and the other layer (RB2) is provided with several, in particular the same Lamination section of the type in which a predeterminable layered structure of the individual layers (RB1, RB2) is provided in the axial direction of the laminated core; axial pockets in the laminated core, which are formed by the layers Formation of gaps between the lamination segments of (RB2) and gaps radially within the outer contour of the layer (RB1); permanent magnets in pocket configuration, wherein at least in the axial section of the layer (RB2) Between adjacent lamination segments and the permanent magnets there is a radially extending gap which is provided with an adhesive.

Description

technical field [0001] The invention relates to a rotor for a permanent magnet excited synchronous machine having: a shaft and an axis; a stack of plates with an axially layered structure, the corresponding planes of which are oriented perpendicular to the axis; and at least two layers of different geometric designs, In this case, the rotor has permanent magnets in a pocket-shaped configuration provided for this purpose. Background technique [0002] A permanent magnet excited synchronous machine has permanent magnets in or on its rotor. There are different possibilities for arranging permanent magnets in or on the rotor. In particular when permanent magnets are to be arranged in the rotor, such permanent magnets need to be fixed. [0003] It is therefore known from WO 2010 / 006737 to provide magnets in the rotor. [0004] The disadvantage in the aforementioned embodiments is that the manufacturing process is relatively complicated and the structure of the rotor presents a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/02H02K1/27
CPCH02K1/2773
Inventor 丹尼尔·马德罗尔夫·福尔默
Owner SIEMENS AG