Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polyimide material. Additionally, the polymeric enamel insulation may have a thermal index of at least 260° C.

Abstract: Magnet wire with flexible corona resistant enamel insulation may include a conductor and a multi-layer insulation system formed around the conductor. The insulation system may include a basecoat formed from first polymeric enamel insulation, a midcoat formed from second polymeric enamel insulation, and a topcoat formed from third polymeric enamel insulation. The midcoat may include a filler containing silica dioxide and chromium oxide dispersed in a base polyamideimide material. Additionally, the magnet wire may exhibit few or no cracks in the topcoat when the wire is bent 180 degrees around a 4 mm mandrel.

Abstract: Magnet wire with corona resistant enamel insulation may include a conductor and a multi-layer insulation system formed around the conductor. The insulation system may include a basecoat formed from a first polymeric enamel insulation. A midcoat formed from a second polymeric enamel insulation may be formed around the basecoat, and the second polymeric enamel insulation may include a filler dispersed in a base polyimide material. The filler may include between 20 percent and 80 percent by weight of silica dioxide and between 20 and 80 percent by weight of titanium dioxide. Additionally, the insulation system may include a topcoat formed from third polymeric enamel insulation formed around the midcoat.

Abstract: Electric machines, such as motors, may include an armature and a field component, and at least one of the armature or the field component may include a laminated structure having a plurality of slots into which a plurality of conductive elements are positioned. Additionally, a polymeric insulation layer may be formed directly on the laminated structure at least within the plurality of slots.

Abstract: Magnet wire with flexible corona resistant enamel insulation may include a conductor and a multi-layer insulation system formed around the conductor. The insulation system may include a basecoat formed from first polymeric enamel insulation, a midcoat formed from second polymeric enamel insulation, and a topcoat formed from third polymeric enamel insulation. The midcoat may include a filler containing silica dioxide and chromium oxide dispersed in a base polyamideimide material. Additionally, the magnet wire may exhibit few or no cracks in the topcoat when the wire is bent 180 degrees around a 4 mm mandrel.

Abstract: Magnet wire with corona resistant enamel insulation may include a conductor and a multi-layer insulation system formed around the conductor. The insulation system may include a basecoat formed from a first polymeric enamel insulation. A midcoat formed from a second polymeric enamel insulation may be formed around the basecoat, and the second polymeric enamel insulation may include a filler dispersed in a base polyimide material. The filler may include between 20 percent and 80 percent by weight of silica dioxide and between 20 and 80 percent by weight of titanium dioxide. Additionally, the insulation system may include a topcoat formed from third polymeric enamel insulation formed around the midcoat.

Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polyamideimide material. The filler may include between 20 percent and 80 percent by weight of silica dioxide and between 20 and 80 percent by weight of titanium dioxide. Additionally, the polymeric enamel insulation may have a thermal index of at least 230° C. and a thermal index that is at least twice that of the base polymeric material.

Abstract: Electric machines, such as motors, may include an armature and a field component, and at least one of the armature or the field component may include a laminated structure having a plurality of slots into which a plurality of conductive elements are positioned. Additionally, a polymeric insulation layer may be formed directly on the laminated structure at least within the plurality of slots.

Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polyamideimide material. The filler may include between 20 percent and 80 percent by weight of silica dioxide and between 20 and 80 percent by weight of titanium dioxide. Additionally, the polymeric enamel insulation may have a thermal index of at least 230° C. and a thermal index that is at least twice that of the base polymeric material.

Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polyimide material. The filler may include between 20 percent and 80 percent by weight of silica oxide and between 20 and 80 percent by weight of titanium oxide. Additionally, the polymeric enamel insulation may have a thermal index of at least 260° C. and a thermal index that is at least twice that of the base polymeric material.

Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polyimide material. The filler may include between 20 percent and 80 percent by weight of silica oxide and between 20 and 80 percent by weight of titanium oxide. Additionally, the polymeric enamel insulation may have a thermal index of at least 260° C. and a thermal index that is at least twice that of the base polymeric material.

Abstract: Insulated winding wires, winding wire articles, and associated formation methods are described. An insulated winding wire may include a conductor and insulation formed around the conductor. In certain embodiments, the insulation may include a first layer including a first parylene material and a second layer including a second parylene material different from the first parylene material. In other embodiments, the insulation may include one or more layers containing parylene formed over base insulation.

Abstract: Magnet wire with corona resistant enamel insulation may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in polyimide and an additive formed by reacting an amine moiety with a formaldehyde material. The filler may include between 20 percent and 80 percent by weight of silica oxide and between 20 and 80 percent by weight of titanium oxide.

Abstract: Magnet wire with improved enamel adhesion is described. The magnet wire may include a conductor and a plurality of layers of polymeric enamel insulation material formed around the conductor. One or more first or primer coats of insulation may be formed from a polyimide material that includes a dianhydride component reacted with a diamine component that includes at least eighty percent by weight of BAPP. The BAPP provides enhanced adhesion between the insulation material and the conductor. One or more second or overcoat layers of insulation may be formed over the primer coat(s). The overcoat layer(s) may be formed from a polyimide material that includes a dianhydride component reacted with a diamine component that includes ODA.

Abstract: Insulated winding wire articles and associated formation methods are described. An insulated winding wire article may include a conductor and optional base insulation formed around the conductor. The conductor may be formed into a predefined shape having at least one bend, such as a U-shaped bend. A coating comprising parylene may be formed around the conductor and any base insulation.

Abstract: Magnet wire with corona resistant enamel insulation is described. A magnet wire may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in polyimide. The filler may include between 20 percent and 80 percent by weight of silica oxide and between 20 and 80 percent by weight of titanium oxide.

Abstract: Insulated winding wire articles and associated formation methods are described. An insulated winding wire article may include a conductor and optional base insulation formed around the conductor. The conductor may be formed into a predefined shape having at least one bend, such as a U-shaped bend. A coating comprising parylene may be formed around the conductor and any base insulation.

Abstract: Insulated winding wire articles and associated formation methods are described. An insulated winding wire article may include a conductor and optional base insulation formed around the conductor. The conductor may be formed into a predefined shape having at least one bend, such as a U-shaped bend. A coating comprising parylene may be formed around the conductor and any base insulation.

Abstract: Insulated winding wire articles and associated formation methods are described. An insulated winding wire article may include a conductor and optional base insulation formed around the conductor. The conductor may be formed into a predefined shape having at least one bend, such as a U-shaped bend. A coating comprising parylene may be formed around the conductor and any base insulation.

Abstract: Insulated winding wires, winding wire articles, and associated formation methods are described. An insulated winding wire may include a conductor and insulation formed around the conductor. In certain embodiments, the insulation may include a first layer including a first parylene material and a second layer including a second parylene material different from the first parylene material. In other embodiments, the insulation may include one or more layers containing parylene formed over base insulation.