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Magnetically loaded composite rotor and method of making a magnetically loaded composite rotor

A magnetic and rotor technology, applied in the direction of magnetic circuit rotating parts, manufacturing stator/rotor body, magnetic circuit, etc., can solve problems such as hindering the removal of the rotor

Active Publication Date: 2017-08-11
GKN HYBRID POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some magnetic material powder still migrates through the glass fiber tow to the surface of the mandrel where it interferes with removal of the rotor

Method used

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  • Magnetically loaded composite rotor and method of making a magnetically loaded composite rotor
  • Magnetically loaded composite rotor and method of making a magnetically loaded composite rotor
  • Magnetically loaded composite rotor and method of making a magnetically loaded composite rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] exist figure 1 Among them, a cylindrical hollow mandrel 1 on which a rotor is to be formed has a shaft 2 extending longitudinally. At least a portion of the outer surface of the mandrel is coated with a commercially available mold release agent 3 which may be wax, polyvinyl alcohol or such as from www.fibreglast.com available Any commercially available mold release agent. Coated on top of the release agent is at least one layer of fibrous material 4 , preferably a pre-impregnated glass fiber cloth material, having fibers extending in the direction of the longitudinal axis 2 .

[0040] The fibrous material may alternatively be a non-woven fabric, a felt or mat or a woven fabric.

[0041] The pre-impregnated fiberglass cloth is naturally tacky and is pre-cut and rolled onto the surface of the mandrel, then heat cured.

[0042] Further examples of braided materials could be:

[0043] plain weave

[0044] In this weave pattern, warp and fill yarns are interwoven ove...

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PUM

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Abstract

A magnetically loaded composite rotor is formed by providing a mandrel (1) with a longitudinal axis (2). A release agent (3) is applied on the mandrel and a fiber material (4) of woven or non-woven material with fibers extending in the direction of the axis (2) is applied on the release agent. A thermoplastic resin impregnated tow (24) containing magnetic particles (28) is wound on a fibrous material (4) which substantially prevents penetration of the magnetic particles to the mandrel.

Description

technical field [0001] The present invention relates to magnetically loaded composite (MLC) rotors and methods of making such rotors. Background technique [0002] MLC rotors, sometimes referred to as flywheels, may be used in electric motor / generators rotating at high speeds (eg, over 30,000 rpm) for energy storage and / or power generators. [0003] Depending on whether energy is applied to or drawn from electronic coils on the stator used in conjunction with the rotor, the rotor can be used as a motor or as a generator. [0004] The use of an MLC rotor has the beneficial effect of not requiring separate magnets that would fly off at high speeds. [0005] WO97 / 00549, EP-B-067987 and PCT / GB2012 / 051367 describe the use of fiber tows (i.e. untwisted bundles of continuous rayon filaments) embedded in an uncured epoxy resin (e.g. epoxy resin) substrate , such as glass fibers, or carbon fibers, or carbon nanotubes) to form a composite flywheel. [0006] In EP-B-0667987 dry glas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/03H02K7/02H02K1/27H02K7/00
CPCH02K1/2726H02K15/03F16F15/305Y02E60/16H02K7/02F16F2224/0241F16F2222/06H02K1/279H02K1/2706H02K7/025
Inventor C·D·塔兰特
Owner GKN HYBRID POWER