Reinforced magnet
AssigneeDyson Technology Limited
InventorDavid Michael JONES
Life of this patent
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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.
Claims14
A magnet comprising a composite body and at least one reinforcing element embedded within the body, the reinforcing element surrounding a bore in the body.
A magnet comprising a composite body and at least one reinforcing element embedded within the body, wherein the body has a rotational axis, and the reinforcing element surrounds the rotational axis and has a radial stiffness and a radial tensile strength greater than that of the body.
A method of manufacturing a magnet, the method comprising:
- providing a mold having a pin;
- placing a reinforcing element onto the pin;
- introducing a binder-coated magnetic powder into the mold;
- and
- compressing the powder and the reinforcing element.
A method of manufacturing a magnet, the method comprising:
- locating a washer between a pair of ring magnets, at least one of the washer and the ring magnets having a curable binder;
- and
- curing the binder.
Dependencies are inferred from the claim text.