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Electric machines with low slot leakage

一种电机器、磁轭的技术，应用在主动部件领域，能够解决减少电机器效率等问题，达到高效驱动转子的效果

Active Publication Date: 2019-09-06
ROLLS ROYCE DEUT LTD & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore more magnetomotive force is required, which in turn reduces the efficiency of the electrical machine

Method used

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  • Electric machines with low slot leakage
  • Electric machines with low slot leakage
  • Electric machines with low slot leakage

Examples

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Embodiment Construction

[0032]The embodiments described next are preferred designs of the present invention. In this exemplary embodiment, however, the described components of this embodiment exhibit the individual features of the invention considered independently of each other, which also correspondingly improve the invention independently of each other and thus also individually or in addition The combinations shown are considered to be part of the present invention. Furthermore, the described refinements are also supplemented by further features according to the invention that have already been described.

[0033] exist figure 1 shows an electric machine E in longitudinal section, where it can be a synchronous machine, for example. exist figure 1 The middle axis of rotation A is also the illustrated axis of symmetry. An electric machine E comprises a stator S in which a winding of an electric coil W is arranged, wherein in figure 1 Only one of the coils W is shown in . The coils W can be al...

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Abstract

An active part for an electric machine can be configured as a stator or a rotor and includes at least two slots for arranging an electric coil winding of an electric coil. Arranged between the two slots is a crosspiece which is made of a material for conducting a magnetic flux through the electric coil which surrounds the crosspiece. The material has, at least in one area, magnetic anisotropy with an easy magnetization axis, which is oriented parallel or at least at an angle of less than 25° with respect to a coil axis of the coil, and a hard magnetization axis. The crosspiece is configured to form for each of the slots a slot wall which contains the material. The crosspiece includes a core which is made of an isotropic soft-magnetic material.

Description

technical field [0001] The invention relates to an active component for an electric machine, which can be designed as a stator or as a rotor. The active component has slots for arranging the coil windings of the electrical coil. Corresponding webs are formed between adjacent slots so that they can be wound around the coil winding. A magnetic flux is guided through the coil via the web. Background technique [0002] An active component is understood in the context of the present invention to be a soft-magnetic component of an electric machine, via which a magnetic flux can be guided through the coil windings arranged in the slots, thereby closing the magnetic circuit of the electric machine. The less leakage flux a magnetic circuit has, the more efficiently an electrical machine can operate. [0003] Due to their regular arrangement, the webs are also described as stator teeth or rotor teeth. In electrical machines, stator teeth and rotor teeth are often subjected to high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/02H02K1/14H02K1/24
Inventor 拉尔夫·菲舍尔科比尼安·彼得迈尔拉沃夫·福尔默
Owner ROLLS ROYCE DEUT LTD & CO KG