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Armature of permanent magnet excitation with guided magnetic field

一种电枢、磁场的技术，应用在具有被引导的磁场的永磁激励的电枢领域，能够解决电枢体机械不稳定等问题，达到小磁性电压降、高最大功率、低电感的效果

Inactive Publication Date: 2016-03-30
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that such cavities make the armature body mechanically unstable

Method used

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  • Armature of permanent magnet excitation with guided magnetic field
  • Armature of permanent magnet excitation with guided magnetic field
  • Armature of permanent magnet excitation with guided magnetic field

Examples

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Embodiment Construction

[0034] The examples set forth below are preferred embodiments of the invention. However, in these exemplary embodiments, the described components of the embodiment represent individual features of the invention considered independently of each other, which also improve the invention independently of each other and thus also individually or in combination with the described The different combinations shown are to be considered as part of the invention. Furthermore, the described embodiments can also be supplemented by other already described features of the invention.

[0035] exist figure 1 A longitudinal section of an electric machine E is shown in , wherein the electric machine can be, for example, a synchronous machine. exist figure 1 In , the axis of rotation A also represents the axis of symmetry shown in the figure. The electric machine E comprises a stator St in which a winding W of an electric coil is arranged, wherein, in figure 1 Only one of the windings W is sh...

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Abstract

The present invention relates to an armature (10) of permanent magnet excitation for a motor (E). The armature of permanent magnet excitation has a plurality of permanent magnets (16) with magnetization parts for generating a magnetic field and armature bodies (12) with built-in magnet grooves (14). The magnet grooves are respectively provided with one of the permanent magnets (16). The armature bodies (12) are designed to guide the magnet grooves (14) and the armature (14) for construction of a magnetic field between the magnetic poles (22) at the surface (20) of the armature. The objective of the invention is to provide an efficient armature (10). In order to guidance of the magnetic field, each magnet groove (14) is configured by materials. The materials at least has magnetic anisotropy which has magnetic light axis (34) and heavy axis, and the light axis (34) is parallel with or is at least oriented at an angle of less than 25 degrees in the magnetic direction of the magnetic part of the permanent magnets (16) arranged in the magnet grooves (14).

Description

technical field [0001] The invention relates to a permanently excited or short permanent magnet excited armature for an electric machine as well as an electric machine with such an armature and a method for producing the armature. The armature has so-called built-in permanent magnets, ie magnet recesses are formed in the armature body, in which the respective permanent magnets are arranged. The magnetic field of the permanent magnet must be guided through the armature body between the magnet groove on the one hand and the armature surface on the other hand, whereby the poles of the armature are formed on the armature surface, which can be aligned with the motor's The stator field interaction of the stator. Background technique [0002] For permanently excited motors there is a rotor construction in which the magnets are arranged inside the rotor, which is also known as the IPM construction (IPM—Interior Permanent Magnet). For this purpose, slots or magnet pockets are provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22H02K15/03
CPCH02K1/2766H02K1/02H02K1/246H02K2213/03
Inventor 拉尔夫·菲舍尔罗尔夫·福尔默
Owner SIEMENS AG
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