Magnet wire with thermoplastic insulation
AssigneeEssex Furukawa Magnet Wire USA LLC
InventorsMatthew E. Leach, Mohammad Mazhar Said, Guadalupe Arambula, Zhiyang Zhao
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Abstract
Magnet wire including extruded insulation formed from multiple layers of different materials is described. A magnet wire may include a conductor and insulation formed around the conductor. The insulation may include a first layer of extruded thermoplastic insulation formed around the conductor and a second layer of extruded thermoplastic insulation formed around the first layer of extruded thermoplastic insulation. The first layer may be formed from a first polymeric material having a first thermal index, and the second layer may be formed from a second polymeric material having a second thermal index higher than the first thermal index.
Claims17
A magnet wire comprising:
- a conductor;
- and
- extruded insulation formed around the conductor, the extruded insulation comprising:
- a solid first layer formed around and bonded to the conductor from a first thermoplastic polymeric material having a first thermal index and comprising at least one of polyester, nylon, polyphenylene sulfide, or polyphenylsulfone, the first layer comprising at least fifty-five percent of a thickness of the extruded insulation;
- and
- a solid second layer formed around the first layer and in contact with an entire outer periphery of the first layer, the second layer formed from a second thermoplastic polymeric material having a second thermal index higher than the first thermal index and comprising at least one of polyetheretherketone, polyaryletherketone, or polyetherketoneketone,
- wherein the extruded insulation has a partial discharge inception voltage of at least 1200 volts.
A magnet wire comprising:
- a conductor;
- and
- extruded insulation formed around the conductor, the extruded insulation comprising:
- a solid first layer formed around the conductor from a first thermoplastic polymeric material having a first thermal index and comprising at least one of polyester, nylon, polyphynylene sulfide, or polyphenylsulfone, the first layer comprising at least fifty-five percent of a thickness of the extruded insulation;
- and
- a solid second layer formed around the first layer and in contact with an entire outer periphery of the first layer, the second layer formed from a second thermoplastic polymeric material having a second thermal index higher than the first thermal index and comprising polyetherketoneketone,
- wherein a thickness of the extruded insulation is between 15 micrometers and 200 micrometers.
A magnet wire comprising:
- a conductor;
- and
- extruded insulation formed around the conductor, the extruded insulation comprising:
- a first layer formed around the conductor from a first thermoplastic polymeric material having a first thermal index, the first polymeric material comprising at least one of polyester, nylon, polyphenylene sulfide, or polyphenylsulfone, the first layer comprising at least fifty-five percent of a thickness of the extruded insulation;
- and
- a second layer formed around the first layer and in contact with an entire outer periphery of the first layer, the second layer formed from a second thermoplastic polymeric material having a second thermal index higher than the first thermal index, the second polymeric material comprising at least one of polyetheretherketone, polyaryletherktone, or polyetherketoneketone,
- wherein a thickness of the extruded insulation is between 250 micrometers and 600 micrometers.
Dependencies are inferred from the claim text.