Patent application number | Description | Published |
20130330554 | INSULATING PAINT, INSULATED WIRE AND METHOD OF PRODUCING INSULATED WIRE - Insulating paint, containing a resin that can form an insulating film by application and baking, and a reducing agent having a boiling point of 160° C. or higher. | 12-12-2013 |
20140354394 | INSULATED WIRE HAVING A LAYER CONTAINING BUBBLES, ELECTRICAL EQUIPMENT, AND METHOD OF PRODUCING INSULATED WIRE HAVING A LAYER CONTAINING BUBBLES - An insulated wire, containing: an insulating film made from a thermosetting resin disposed on a conductor directly or via an insulating layer interposed therebetween, in which the insulating film made from a thermosetting resin is a layer containing bubbles prepared by baking a varnish of thermosetting resin, and a layer containing no bubbles is formed as an upper or lower layer of the layer containing bubbles. | 12-04-2014 |
20150021067 | INVERTER SURGE-RESISTANT INSULATED WIRE - An inverter surge-resistant insulated wire, having at least one baked enamel layer around the outer periphery of a conductor, and an extrusion-coated resin layer at the outside of the baked enamel layer, wherein a total thickness of the baked enamel layer and the extrusion-coated resin layer is 50 μm or more, a thickness of the baked enamel layer is 60 μm or less, and a thickness of the extrusion-coated resin layer is 200 μm or less, wherein the minimum of tensile elastic modulus of the extrusion-coated resin layer at a range of 25 to 250° C. is 100 MPa or more, wherein a dielectric constant of an insulation layer having a combination of the baked enamel layer and the extrusion-coated resin layer is 3.5 or less at 25° C. and 5.0 or less at 250° C., and wherein a relation between dielectric constant (∈1′) of the baked enamel layer at 250° C. and dielectric constant (∈2′) of the extrusion-coated resin layer at 250° C. satisfies (∈2′/∈1′)>1. | 01-22-2015 |
20150027748 | INVERTER SURGE-RESISTANT INSULATED WIRE AND METHOD OF PRODUCING THE SAME - An inverter surge-resistant insulated wire, having at least one baked enamel layer around the outer periphery of a conductor having a rectangular cross-section, at least one extrusion-coated resin layer around the outer side thereof, and an adhesive layer having a thickness of 2 to 20 μm between the baked enamel layer and the extrusion-coated resin layer, wherein each of the at least one extrusion-coated resin layer on the adhesive layer is formed by the same resin, a cross-sectional shape of the baked enamel layer and the extrusion-coated resin layer in the cross-section of the inverter surge-resistant insulated wire is rectangular, and in the cross-sectional shape formed by the baked enamel layer and the extrusion-coated resin layer surrounding the conductor in a cross-sectional view, at least a pair of two sides of two pairs of two sides opposing at the upper side and the downside or at the right side and the left side with respect to the conductor each meet the conditions that a total thickness of the baked enamel layer and the extrusion-coated resin layer is 80 μm or more, a thickness of the baked enamel layer is 60 μm or less, a thickness of the extrusion-coated resin layer is 200 μm or less, and the resin of the extrusion-coated resin layer has a melting point of 300° C. or more and 370° C. or less, and a method of producing the inverter surge-resistant insulated wire comprising forming adhesive layer on the outer periphery of the baked enamel layer, and then extruding a thermoplastic resin for forming the extrusion-coated resin layer on the adhesive layer thereby to contact with the adhesive layer, the thermoplastic resin becoming a molten state at a higher temperature than a glass transition temperature of the resin that is used for the adhesive layer. | 01-29-2015 |
20150235736 | INSULATED WIRE AND ELECTRIC OR ELECTRONIC EQUIPMENT - An insulated wire having a conductor, and a multilayer insulating layer composed of two or more layers coating the conductor, wherein the innermost insulating layer of the multilayer insulating layer is an insulating layer formed of a crystalline thermoplastic resin having a storage elastic modulus of 10 MPa or more at 300° C. and outer insulating layer(s) other than the innermost insulating layer include(s) an insulating layer formed of a crystalline thermoplastic resin having a melting point of 260° C. or higher and a storage elastic modulus of 1,000 MPa or more at 25° C., and adjacent insulating layers have a relationship such that the storage elastic modulus at 25° C. of the thermoplastic resin of the outer insulating layer is equal to or smaller than the inner insulating layer; and electric/electronic equipment formed using the insulated wire as a winding and/or lead wire of a transformer that is incorporated into the electric/electronic equipment. | 08-20-2015 |
20150262732 | INSULATED WIRE AND MOTOR - An insulated wire, containing a conductor, an insulating layer that directly or indirectly coats the outer periphery of the conductor and includes a foaming thermosetting resin, and an outer non-foamed insulating layer that directly or indirectly coats the outer periphery of the insulating layer, wherein the insulating layer has a thickness deformation ratio of 15% or more and 50% or less upon applying a pressure of 1 MPa at 25° C., wherein the outer non-foamed insulating layer has pencil hardness of 4H or more, and wherein a ratio of thickness of the insulating layer to the outer non-foamed insulating layer is 20:80 to 80:20; and a motor, wherein the insulated wire is wound into a stator slot in a state in which pressure is applied in a direction for reducing the outer diameter of the insulated wire and a thickness of the insulating layer is reduced. | 09-17-2015 |
20150310959 | INSULATED WIRE, ELECTRICAL EQUIPMENT, AND METHOD OF PRODUCING INSULATED WIRE - An insulated wire having a conductor, a foamed insulating layer containing a thermosetting resin having cells, coated directly or indirectly onto the outer periphery of the conductor and an outer insulating layer containing a thermoplastic resin having a melting point of 240° C. or higher when the thermoplastic resin is a crystalline resin or a thermoplastic resin having a glass transition temperature of 240° C. or higher when the thermoplastic resin is a non-crystalline resin; electrical equipment using the insulated wire; and a method of producing the insulated wire, containing a step of forming a foamed insulating layer by applying a varnish for forming the foamed insulating layer on the outer periphery of a conductor, by generating foams during baking and a step of forming an outer insulating layer by extrusion-molding a thermoplastic resin composition for forming the outer insulating layer on the outer periphery of the foamed insulating layer. | 10-29-2015 |
20150325333 | ENAMEL RESIN-INSULATING LAMINATE, INSULATED WIRE USING THE SAME AND ELECTRIC/ELECTRONIC EQUIPMENT - An enamel resin-insulating laminate that has a foamed region including cells and a non-foamed region including no cells on at least one surface of the foamed region, and is shaped into a flat plate form or cylindrical form, wherein the foamed region is configured such that a non-cell layer including no cells has cell layers formed of closed cells on both surface sides of the non-cell layer, a thickness of the non-cell layer is larger than a thickness of a partition wall among the closed cells, and 5 to 60% of a thickness of the foamed region, and at least the cell layer in the foamed region is formed of a thermosetting resin; an inverter surge-resistant insulated wire having a conductor and the enamel resin-insulating laminate; and electric/electronic equipment. | 11-12-2015 |