Insulated electric conductor
Assigneehpw Metallwerk GmbH
InventorsJürgen Hochstöger, Rudolf Schrayvogel, Ewald Koppensteiner
Life of this patent
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Abstract
An insulated electric conductor includes a flat or round wire made of one or more electrically conductive materials, the flat or round wire having an exterior surface that is free of an oxide layer; and an insulating layer adhering directly to the oxide-layer-free exterior surface to form a coating around the oxide-layer-free exterior surface, the insulating layer being made of at least one thermoplastic material which provides electrical insulation. The flat or round wire is designed to conduct an electrical current.
Claims22
A winding wire for electrical machines, comprising:
- a flat or round wire made of one or more electrically conductive materials, the flat or round wire having an exterior surface that is free of an oxide layer;
- and
- an insulating layer adhering directly to the oxide-layer-free exterior surface to form a coating around the oxide-layer-free exterior surface, the insulating layer being made of at least one thermoplastic material which provides electrical insulation;
- wherein the flat or round wire is designed to conduct an electrical current.
A winding wire for electrical machines, comprising:
- a flat or round wire made of one or more electrically conductive materials, the flat or round wire having an exterior surface that is free of an oxide layer;
- and
- an insulating layer adhering directly to the oxide-layer-free exterior surface to form a coating around the oxide-layer-free exterior surface, the insulating layer being made of at least one thermoplastic material which provides electrical insulation;
- wherein the insulating layer is applied under a protective gas atmosphere;
- wherein the flat or round wire is designed to conduct an electrical current;
- wherein the insulating layer is an extrusion coated layer on the oxide-layer-free exterior surface.
An insulated electric conductor, comprising:
- a flat or round wire made of one or more electrically conductive materials, the flat or round wire having an exterior surface that is free of an oxide layer;
- and
- at least one insulating layer adhering directly to the oxide-layer-free exterior surface to form a coating around the oxide-layer-free exterior surface, the at least one insulating layer being made of at least one thermoplastic material that is selected from the group consisting of:
- polyaryletherketone [PAEK], polyimide [PI], polyamideimide [PAI], polyetherimide [PEI], polyphenylene sulfide [PPS], and combinations thereof, which at least one thermoplastic material provides electrical insulation;
- wherein the flat or round wire is designed to conduct an electrical current;
- wherein the adhesion between the insulating layer and the oxide-layer-free exterior surface resists detachment such that said detachment, in response to the insulating layer being cut circumferentially in a direction perpendicular to an axis of the flat or round wire and the insulated electric conductor being stretched by 20%, is at most 3 mm as measured in a direction of a conductor axis.
Dependencies are inferred from the claim text.