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Stator compacted in one piece

一种定子、定子齿的技术，应用在压制工具领域

Inactive Publication Date: 2011-02-16
HOGANAS AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the invention described herein address at least some of the problems described above and provide improved stators and methods of making such stators

Method used

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  • Stator compacted in one piece
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  • Stator compacted in one piece

Examples

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Embodiment Construction

[0027] The present invention belongs to the field of an electric modulated pole machine 100 , an example of which is shown in a schematic exploded perspective view in FIG. 1 . The essential feature of the electric modulated pole machine stator 10 is the use of a central single winding 20 which can feed a plurality of teeth 102 formed by a soft magnetic core structure. The stator core is formed around the windings 20, whereas with other common machine configurations the windings are formed around individual toothed core segments. Examples of modulated pole motor topologies are sometimes considered eg claw pole motors, Crow-feet motors, Lundell motors or TFM motors. More specifically, the illustrated electric modulated pole machine 100 includes two stator core segments 14 and 16, a coil 20, and a rotor 30, each of which includes a plurality of teeth 102 and is substantially circular The coil 20 is arranged between first and second circular stator core segments, and the rotor 30...

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Abstract

This invention relates to a compaction tool for compacting an element from metal powder where said element has uniform axially displaced protrusions, said tool comprises a die and a top and a bottom punch with punch surfaces. The top and bottom punch comprises displaceable opposing punch surfaces for displacing the metal powder there between before compacting the element. The invention further relates to a method for compacting an element from metal powder and an element made from such a method.

Description

technical field [0001] The invention relates to a pressing tool, a method for pressing metal powder into components and components produced according to this method. Background technique [0002] The present invention relates to the design and efficient industrial manufacture of soft magnetic core parts for electric adjustable pole electric machines, which are produced using a powder forming process. An effective conventional means of fabricating such structures is the use of soft magnetic composite (SMC) materials based on soft magnetic powder particles that are compressed and deformed in a tool to form relatively high density, resistive current properties of the particles and Using alternating field (AC) magnetized parts, the resistive current properties of the particles reduce eddy currents in the material and result in final part properties comparable to electrical silicon steel plates measured along their most desired directions. By the conventional means described, ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/03B30B11/02
CPCB30B11/027H02K15/02B22F2003/033B22F3/03
Inventor G·诺德L-O·彭纳德A·G·杰克
Owner HOGANAS AB