Coil structures
AssigneeTechnelec Ltd
InventorsRichard POLLOCK, James NICHOLLS, Peter DACKUS, Abigail CUMMING
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Abstract
A coil structure for an electromagnetic device comprising a conductor configured to provide a coil comprising one or more coil turns around a magnetic core to induce a magnetic flux in the magnetic core when in use. The conductor comprises one or more a first parts comprising a plurality of sub-conductors in parallel, and one or more second parts coupled in series with the first part(s), wherein the or each second part comprises a single sub-conductor or a lesser number of sub-conductors in parallel.
Claims22
A coil structure for a stator of an electric motor having a rotor configured to rotate about an axis, the coil structure comprising a conductor configured to provide a coil comprising one or more coil turns around a magnetic core of the stator to induce a magnetic flux in the magnetic core when in use, the conductor comprising:
- one or more a first parts comprising a plurality of sub-conductors in parallel;
- and
- one or more second parts coupled in series with the first part(s), wherein the or each second part comprises a single sub-conductor or a lesser number of sub-conductors in parallel, and wherein at least one coil turn comprises a first part of the one or more first parts and a second part of the one or more second parts and a transition between the first and second parts occurs substantially at both axially outer ends of the magnetic core.
A method of forming a coil structure for an electric motor and comprising one or more coils, the method comprising:
- forming a substantially U-shaped part;
- forming a top part;
- and
- fixing the top part to the substantially U-shaped part to provide, for the or each coil, a continuous conductor providing one or more coil turns.
Dependencies are inferred from the claim text.