Reinforced magnet
First Claim
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1. A method of manufacturing a magnet, the method comprising:
- providing a mold having a pin;
placing a coil onto the pin;
introducing a binder-coated magnetic powder into the mold; and
compressing axially the powder and the coil such that the length of the coil compresses along with the powder.
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Abstract
A magnet that includes a composite body and at least one reinforcing element. The reinforcing element is embedded within the body and increases the radial strength of the body. As a result, the magnet is able to rotate at higher speeds without fracturing. Additionally, methods of manufacturing the magnet are described.
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Citations
2 Claims
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1. A method of manufacturing a magnet, the method comprising:
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providing a mold having a pin; placing a coil onto the pin; introducing a binder-coated magnetic powder into the mold; and compressing axially the powder and the coil such that the length of the coil compresses along with the powder.
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2. A method of manufacturing a magnet, the method comprising:
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providing a mold having a pin; placing a plurality of washers onto the pin and introducing a binder-coated magnetic powder into the mold such that the washers are spaced axially along the pin by the powder; and compressing axially the powder and the washers.
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Specification
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Current AssigneeDyson Technology Limited (Beeswax Holdings UK Limited)
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Original AssigneeDyson Technology Limited (Beeswax Holdings UK Limited)
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InventorsJones, David Michael
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Primary Examiner(s)Tucker, Philip
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Assistant Examiner(s)WU, VICKI H
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Application NumberUS13/734,437Publication NumberTime in Patent Office515 DaysField of Search156/242US Class Current156/242CPC Class CodesH01F 41/02 for manufacturing cores, co...H01F 41/0266 Moulding; Pressing H01F41/0...H01F 7/0221 Mounting means for PM, supp...H02K 1/2733 Annular magnetsH02K 15/03 having permanent magnetsY10T 156/10 Methods of surface bonding ...
