Planar stator with efficient use of space
First Claim
1. A wound apparatus which comprises a wound conductor in which material of said wound conductor occupies more than 75% of a cylindrical volume which contains said apparatus formed by periodically bending a single pre-formed flat profile conductor member by about 180°
- to form a disc with a central aperture having external and internal peripheries and first and second axially displaced planar surfaces between said peripheries, each external periphery of the external peripheries connecting a radially outer portion of the planar surfaces, and each internal periphery of the internal peripheries connecting a radially inner portion of the planar surfaces, wherein said single preformed flat profile conductor member comprises three separate but grouped conductor members connected as a cable which comprises three conductor elements encased in a common isolating element.
1 Assignment
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Accused Products
Abstract
Designs and method of construction for planar stators useable inter alia for axial air-gap electric machines are provided. In some embodiments these designs make highly efficient use of the space occupied by the stator, substantially filling most of its volume with active conductors. Some embodiments comprise at least one flexible conductor member (e.g. a flat cable) periodically bent by about 180° to form both external and internal peripheries of a two-layer planar stator. In some embodiments disk-like or ring-like members are used to shape and/or to secure the flexible conductor. In some embodiments adhesive members and/or encapsulating and/or potting of conductive elements provide solidity and rigidity of the stator(s). In some embodiments a plurality of planar stators are interleaved with a plurality of planar rotors, producing an efficient system electrical motor and/or generator.
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Citations
21 Claims
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1. A wound apparatus which comprises a wound conductor in which material of said wound conductor occupies more than 75% of a cylindrical volume which contains said apparatus formed by periodically bending a single pre-formed flat profile conductor member by about 180°
- to form a disc with a central aperture having external and internal peripheries and first and second axially displaced planar surfaces between said peripheries, each external periphery of the external peripheries connecting a radially outer portion of the planar surfaces, and each internal periphery of the internal peripheries connecting a radially inner portion of the planar surfaces, wherein said single preformed flat profile conductor member comprises three separate but grouped conductor members connected as a cable which comprises three conductor elements encased in a common isolating element.
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2. An axial air-gap electric machine which comprises a planar disk-shaped stator with a central aperture having external and internal peripheries and first and second axially displaced planar surfaces between said peripheries, each external periphery of the external peripheries connecting a radially outer portion of the planar surfaces, and each internal periphery of the internal peripheries connecting a radially inner portion of the planar surfaces, wherein said planar disk-shaped stator comprising a single pre-formed flat profile conductor member that was periodically bent by about 180°
- to form said external and internal peripheries and said axially displaced first and second planar surfaces between said peripheries.
- View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
Specification