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US 9,425,664 B2Granted
Composite stator for electromechanical power conversion
AssigneeThinGap Corporation
InventorsLeonard N. Wedman, Evan E. Frank, Donald A. Harris
Life of this patent
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Abstract
A rotating electromechanical apparatus includes a cylindrical ironless stator coil comprising a plurality of wires, a magnetic rotor arranged with the stator coil, wherein the magnetic field flux associated with the rotor interacts with the stator coil wires by electromagnetic induction, a cylindrical bobbin arranged to support the wires, a strand woven on at least the outer circumference of the wire-wrapped cylindrical bobbin, and a curable potting material potting the wires, bobbin and strand to provide an ironless composite stator coil when cured.
Claims8
An apparatus comprising:
- an ironless composite stator coil comprising a composite structure, wherein the composite structure comprises:
- a wire-wrapped cylindrical bobbin, comprising:
- a cylindrical bobbin having an inner surface and an outer surface;
- and
- at least one wire wrapped around both the inner and outer surfaces of the cylindrical bobbin;
- and
- a cured potting material potting the wire-wrapped cylindrical bobbin, wherein the composite structure has a rigidity reinforced by the cylindrical bobbin to withstand turn-to-turn voltage changes, and
- wherein the composite structure further comprises an inner surface and an outer surface;
- further comprising a first layer of one or more fiber strands wound on the inner surface of the composite structure and a second layer of one or more fiber strands wound on the outer surface of the composite structure.
6 more elements
Dependencies are inferred from the claim text.