This insulated wire includes a conductor and an insulating film disposed around the conductor, wherein: the insulating film contains a polyimide resin; and in the components of the polyimide, a component (a) which is a component having a skeleton derived from pyromellitic anhydride and/or a component having a skeleton derived from 3,3',4,4'-biphenyltetracarboxylic dianhydride is contained as a tetracarboxylic dianhydride-derived component, and a component (b) which is a component having a skeleton derived from 9,9-bis(4-aminophenyl)fluorene is contained as a diamine-derived component.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
An insulated electrical wire which comprises a conductor and an insulating coating film disposed in contact with the conductor, wherein the insulating coating film disposed in contact with the conductor includes a polyimide resin containing (A) a component derived from 2,2-bis[4-(4-aminophenoxy)phenyl]propane and (B) a component derived from 9,9-bis(4-aminophenyl)fluorene, as diamine-derived components, the polyimide resin having an imide group concentration of 25.0% or less, and the proportion of the component (B) to the diamine-derived components contained in the polyimide resin being 1-40 mol%.
C08G 73/10 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
C09D 179/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
B32B 15/088 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyamides
An insulated electric wire having a conductor and an insulating coating (A) arranged in contact with the conductor, wherein the insulating coating (A) includes a polyaryl ether ketone, the polyaryl ether ketone has a heat generation peak within the range of 290-330°C in differential scanning calorimetry when the temperature drops at a rate of 10°C/min from a temperature equal to or greater than the melting temperature of the polyaryl ether ketone, and the half-value width of the heat generation peak is 6°C or higher.
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
H01B 13/14 - Insulating conductors or cables by extrusion
Provides are: an insulated electric wire material that has a conductor having a single-core conductor or a plurality of divisional conductors arranged in parallel or spirally, has an outer peripheral insulating layer which covers the outer periphery of the conductor, and has a welding member joined to at least one end of the conductor, via a welded part with the single-core conductor or the divided conductors, at least at the peripheral surface of the welded part; a method for manufacturing the insulated electric wire material; a coil having this insulated electric wire material; and an electric/electronic device having this coil.
An insulated electric wire having a conductor and an air-bubble-containing insulation layer that includes a heat-curable resin, the insulation layer directly or indirectly covering the outer peripheral surface of the conductor, wherein the air bubbles in the air-bubble-containing insulation layer include flat air bubbles such that the flatness of the air bubbles (length in the lateral direction of the air bubble cross-sectional shape/length in the longitudinal direction of the air bubble cross-sectional shape) in a cross section perpendicular to the longitudinal direction of the insulated electric wire is 1.5-5.0, inclusive.
Provides are: an insulated electric wire material that has a conductor having a single-core conductor or a plurality of divisional conductors arranged in parallel or spirally, and has an outer peripheral insulating layer which covers the outer periphery of the conductor, wherein a welding member is disposed at at least one end of the conductor with a welded part therebetween; a method for manufacturing the insulated electric wire material; a coil having this insulated electric wire material; and an electric/electronic device having this coil.
Provided is an assembled wire having a substantially rectangular cross section, and is formed by assembling a plurality of strands 7. Each strand 7 has a conductor portion 11 and a strand insulating layer 13 covering the conductor portion 11. At least a part of the assembled plurality of strands 7 in the longitudinal direction is covered with an outer insulating layer. The strand 7 is formed as follows. First, the strand insulating layer 13 is coated on the outer periphery of the conductor portion 11. At this time, a large number of voids 8 are formed in a resin 12 constituting the strand insulating layer 13. From this state, the strand 7 is formed, for example, by collapsing the strand insulating layer 13 by heating and pressurizing. At this time, it is possible to uniformly collapse the strand insulating layer 13 by crushing the internal voids 8. Therefore, the voids 8 in the strand 7 are crushed and flattened in the thickness direction of the strand insulating layer 13 over the entire periphery.
H02K 3/04 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
H02K 3/30 - Windings characterised by the insulating material
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
9.
ASSEMBLED CONDUCTIVE WIRE, SPLIT CONDUCTOR, SEGMENT COIL USING SAME, AND MOTOR
An assembled conductive wire 10 according to the present invention is formed by assembling a plurality of strands 7, and has a generally rectangular cross-sectional shape. Each one of the strands 7 comprises a conductor part 11 and a strand insulation layer 13 that covers the conductor part 11. It is preferable that the strand insulation layer 13 contains at least one resin which has a 50% weight loss temperature of from 300°C to 500°C as measured by Tg-DTA. The strand insulation layer 13 contains particles. The particles have a volume resistivity of 1 × 106 Ω·cm or more, and for example, inorganic substances such as silica, titania, alumina, aluminum nitride, magnesium oxide, silicon nitride and silicon carbide as well as resins such as silicone are applicable for the particles.
H02K 3/04 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
H02K 3/30 - Windings characterised by the insulating material
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
10.
INSULATED WIRE, COIL, AND ELECTRIC/ELECTRONIC INSTRUMENT
An insulated wire, a coil on which the insulated wire is wound, and an electric/electronic instrument using the coil, the insulated wire being characterized by having a thermoplastic resin layer (A) as a coating layer on a rectangular conductor, wherein the surface of a portion of the thermoplastic resin layer (A) corresponding to at least one side of the insulated wire cross section has at least one projection connected in the length direction of the insulated wire, the projection and a flat portion of the surface of the insulated wire cross section having the projection forming a curved section having a curvature radius of 0.01-0.75 mm, the side surface of the projection having an inclined surface that is inclined by less than 90° in relation to the flat portion of the surface of the insulated wire cross section having the projection.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
This insulated wire (10) comprises: a copper alloy conductor (1); and at least one resin layer (4) coated directly or indirectly on the outer circumferential surface of the copper alloy conductor (1). The copper alloy conductor (1) has a composition in which the total content of metal elements selected from among A1, Be, Cd, Mg, Pb, Ni, P, Sn, and Cr is 0.1-2.0 ppm, and the content of copper is at least 99.96 mass%, and has a texture in which the average value of orientation densities at φ2=0°, φ1=0°, and Φ=0-90° is at least 3.0 and less than 35.0, and the maximum value of orientation densities at φ2=35°, φ1=45-55°, Φ=65-80° is at least 1.0 and less than 30.0 when the crystal orientation distribution function obtained from EBSD-based texture analysis is expressed in Euler angles (φ1, Φ, φ2).
C22F 1/08 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of metals or alloys
H01B 7/00 - Insulated conductors or cables characterised by their form
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
H01B 7/00 - Insulated conductors or cables characterised by their form
H01B 7/30 - Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying AC, e.g. due to skin effect
13.
INSULATED WIRE, COIL AND ELECTRICAL/ELECTRONIC DEVICE
An insulated wire which has an insulating layer on the outer circumference of one conductor or each one of a plurality of conductors, while having an adhesive layer on the outer circumference of the insulating layer. The adhesive layer has a thickness of 2-200 μm; and a resin constituting the adhesive layer does not have a melting point and has a tensile modulus of elasticity of from 0.6 × 107 to 10 × 107 Pa at 250°C, while having a substance that has two or more amino groups in the surface of the adhesive layer. A coil which is formed of this insulated wire; and an electrical/electronic device which uses this coil.
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
Provided are: an insulated electric wire having a thermosetting resin layer on the outer periphery of a conductor, and a thermoplastic resin layer on the outer periphery of the thermosetting resin layer, wherein the total thickness of the thermosetting resin layer and the thermoplastic resin layer is 100-250 μm, and the degree of orientation of the thermoplastic resin in the thermoplastic resin layer calculated according to equation 1 is 20-90%; a coil including the insulated electric wire; and an electric/electronic instrument. Equation 1: Degree of orientation H (%) = [(360 - ΣWn)/360] × 100 Wn: Half width of the orientation peak of the angle-of-direction intensity distribution curve obtained by X-ray analysis n: Number of orientation peaks having a β angle of 0-360°
A winding having a twisted wire in which a plurality of strands, in which the wire diameter of a copper wire is 0.05-0.5 mm, are twisted together, and an extrusion coating layer for covering the plurality of strands, wherein at least one of the strands has a magnetic layer on the outer periphery of the copper wire, and the thickness of the extrusion coating layer is 40-400 μm; and a coil and a transformer in which the winding is used.
H01B 7/30 - Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying AC, e.g. due to skin effect
Provided are an insulated wire, a coil, and an electric/electronic apparatus. The insulated wire includes an insulating coating made of at least two insulating layers layered on a conductor having a rectangular cross section, wherein: the layered insulating coating is constituted by an enamel insulating layer made of a thermosetting resin on an outer periphery of the conductor and an extruding insulating layer made of a thermoplastic resin outside the enamel insulating layer; the thickness of the enamel insulating layer is 50μm or greater; and the total thickness (T) and dielectric constant (ε) at 100°C of the layered insulating coating, and the maximum thickness (Tmax) and maximum (εmax) and minimum (εmin) values of the dielectric constant at 100°C of one of the layered insulating layers satisfy all of the relationships below. T≥100μm(1.1); Tmax≤100μm(1.2); 1.5≤ε≤3.5(2.1); and 1.0≤εmax/εmin≤1.2(2.2).
An insulated wire which has an insulating layer on the outer periphery of a conductor that has a rectangular cross-sectional shape, while having an adhesive layer on the outer periphery of the insulating layer and having an insulating paper sheet on the outer periphery of the adhesive layer, and wherein the adhesive layer has a thickness of 2-50 μm and a resin that constitutes the adhesive layer does not have a melting point, while having a tensile modulus of elasticity of from 0.9 × 107 Pa to 1.2 × 108 Pa at 250°C; a coil which is composed of this insulated wire; and an electrical/electronic device.
The invention provides an insulated electrical wire, a motor coil, and an electrical/electronic apparatus. The insulated electrical wire comprises, as cover layers over a conductor rectangular in cross section, at least one layer of a thermosetting resin layer, and at least one layer of a thermoplastic resin layer in this order. The coat thickness of the cover layer is such that: between the maximum value and the minimum value at each of the edges formed on the four side portions on the conductor rectangular in cross section, the difference is 20 μm or less; and the value obtained when the largest value among the maximum values from all the edges is divided by the smallest value among the minimum values from all the edges is 1.3 or greater.
An insulated wire which comprises an adhesion layer that is in direct contact with a conductor and has a total formula weight of imide structures represented by general formula (a) in the polyimide resin skeleton of from 27% to 33% (inclusive), while having an insulating layer on the adhesion layer, said insulating layer being formed of a polyimide resin that has a total formula weight of the imide structures in the polyimide resin skeleton of more than 27% but 37% or less; a coil; and an electrical/electronic device. AA General formula (a)
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
A self-fusible insulated wire which has a thermoplastic resin layer on the outer periphery of a conductor having a rectangular cross section, while having a thermosetting fusion layer on the outer periphery of the thermoplastic resin layer, and wherein: the fusion layer is formed of a curable resin composition containing an epoxy group-containing phenoxy resin (a1), an epoxy resin (a2) having a softening point of from 50°C to 250°C (inclusive) and an imidazole-based curing agent; the ratio of the content of the resin (a1) to the content of the resin (a2) in the curable resin composition satisfies (a1):(a2) = 71:29-95:5 (mass ratio); the content of the imidazole-based curing agent relative to 100 parts by mass of the total content of the resin (a1) and the resin (a2) is less than 2 parts by mass; and the curable resin composition has a storage elastic modulus of 100-2,500 MPa at 85°C after curing. A coil which is composed of this insulated wire; and an electrical/electronic device.
A collective electric wire according to the present invention has: a collective conductor in which a plurality of conductor strands having a rectangular cross section are formed into layers having an interlayer insulating layer interposed therebetween; an outer-layer insulating layer that covers the collective conductor including the interlayer insulating layer; and an adhesive layer made of a thermoplastic resin having a thickness of 3-10 μm between the collective conductor and the outer-layer insulating layer.
An insulated wire which has, on the outer circumference of a conductor, at least one layer of wire coating film including a thermosetting resin layer, and wherein the thermosetting resin layer is formed by coating and baking a thermosetting resin varnish and has a multilayer structure in which the innermost layer that is in contact with the conductor contains a thermosetting resin having an imide bond and has an average thickness of more than 5 μm but 10 μm or less; a method for producing an insulated wire; a coil; a dynamo-electric machine; and an electrical/electronic device.
[Problem] To provide a polyphase AC electric motor with which it is possible to suppress partial discharge. [Solution] The present invention is characterized in that: the winding for each phase has a first partial conductor that is an input-side partial conductor, an n-th partial conductor connected to a neutral point, and second through (n-1)th partial conductors; and a partial conductor that is disposed adjacent in the stator to the first partial conductor for each phase, or a partial conductor having a coil end part disposed adjacent to a coil end part where the first partial conductor extends from a slot to the outside, is (1) an a-th partial conductor (where a is a natural number equal to 2 or greater) of the same phase or a different phase in which the voltage assumes an extreme value when the alternating-current voltage from an inverter is applied, (2) any of (a-3)th through (a-1)th partial conductors of the same phase or different phases, or any of (a+1)th through (a+3)th partial conductors of the same phase or different phases, connected to an intermediate partial conductor for which the extreme value is adopted, or (3) any of (n-3)th through n-th partial conductors of the same phase or different phases.
H02K 3/28 - Layout of windings or of connections between windings
H02K 3/12 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
This insulated electric wire comprises a thermoplastic resin layer over a rectangular conductor. The strength of tight contact between the thermoplastic resin layer and the rectangular conductor at a pair of opposing sides of the rectangular conductor is different from the strength of tight contact between the thermoplastic resin layer and the rectangular conductor at the other pair of opposing sides of the rectangular conductor.
Provided is an insulated electrical wire, a coil and an electronic/electric equipment using same. The insulated electrical wire has an insulation cover layer comprising a thermoplastic resin on the peripheral surface of a conductor, whereof the cross sectional shape is rectangular, having a long edge, a short edge, and a corner portion of curvature radius Rc, and is characterized by a thickness t1 (μm) of the insulation cover layer covering a surface at a long edge in a transversal cross section of the conductor, which continues in the axial line direction of the conductor, a thickness t2 (μm) of the insulation cover layer covering a surface at a short edge in the transversal cross section of the conductor, which continues in the axial line direction of the conductor, and a thickness t3 (μm) in a corner portion of the insulation cover layer, being related by the following formula (1): Formula (1) t3/{(t1 + t2)/2} ≥ 1.2, each of the t1 (μm) and t2 (μm) independently being 20 μm to 50 μm inclusive, and the value of the ratio of the conductor cross section Sc (mm2) over the insulated electrical wire cross section Sw (mm2) being related by the following formula (2): Formula (2) 1.0 > Sc/Sw ≥ 0.8.
H02K 3/30 - Windings characterised by the insulating material
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
An insulating wire and a rotating electric machine, said insulating wire having a foam insulation layer comprising a heat-curable resin having at least one layer of air bubbles directly or indirectly upon an outer perimeter surface of a conductor. The foam insulation layer has different foam density in the thickness direction.
[Problem] To provide an insulated electric wire, a coil, an electric/electronic device, and a method for manufacturing an insulated electric wire, having excellent mechanical characteristics and reduced thermal degradation even when the partial discharge inception voltage of the insulated electric wire is increased and the temperature exceeds 200°C. [Solution] An insulated electric wire, a coil, an electric/electronic device, and a method for manufacturing this insulated electric wire, wherein the insulated electric wire has on the outer circumference of a conductor at least one layer of an electric wire film that includes an extrusion-coated resin layer, with the extrusion-coated resin layer comprising a mixed resin of a resin (A) and a resin (B) having mutually different relative permittivity. The resin (A) is a polyaryl ether ketone resin selected from polyether ether ketone, polyether ketone ketone, polyether ketone, polyether ether ketone ketone, polyether ketone ether ketone ketone, and polyketone. The resin (B) is a non-fluorine resin having a lower relative permittivity at 200°C than the resin (A). The mixture mass ratio of the mixed resin (the mass of the resin (A): the mass of the resin (B)) is from 90:10 to 51:49, and for the relative permittivity of the entire electric wire film, the value of the ratio of the relative permittivity at 200°C to the relative permittivity at 25°C and a relative humidity of 50% is less than 1.20.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
H01B 13/14 - Insulating conductors or cables by extrusion
An insulated electric wire, a coil, an electric/electronic device, and a method for manufacturing this insulated electric wire, wherein the insulated electric wire has on the outer circumference of a conductor at least one layer of an insulation layer, and at least one of the insulation layers comprises a mixed resin of a crystalline resin (A), and a resin (B) for which the glass transition temperature, as measured by thermo-mechanical analysis, is at least 30°C higher than the glass transition temperature of the crystalline resin (A). In addition, the mixture mass ratio of the mixed resin (the mass of the resin (A): the mass of the resin (B)) is from 90:10 to 51:49.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
H01B 13/14 - Insulating conductors or cables by extrusion
An insulated covered aluminum wire which comprises, on the outer circumference of a conductor, an insulating covering layer that contains a resin having at least a benzene ring and an imide ring, and which is covered by two or more insulating covering layers. The resin which constitutes the innermost insulating covering layer that is in contact with the conductor has a molar ratio of the imide ring content to the benzene ring content of 0.366 or more as determined by formula (1). In addition, the absolute value of the difference of the above-described molar ratio of the imide ring content of the constituent resin between adjacent insulating covering layers is more than 0 but 0.167 or less with respect to any two adjacent insulating covering layers. Total number of moles of imide rings in resin/total number of moles of benzene rings in resin formula (1)
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
An insulated wire in which an aluminum conductor is used, wherein the insulated wire has an adhesion layer formed by directly baking a carboxy-group-containing varnish onto the aluminum conductor, has an insulating layer on the outer layer of the adhesion layer, and has a reinforcing insulating layer on the outer layer of the insulating layer; and a method for manufacturing said wire.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01B 7/00 - Insulated conductors or cables characterised by their form
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
H02K 3/30 - Windings characterised by the insulating material
31.
FLAT-TYPE INSULATED WIRE, COIL, AND ELECTRIC/ELECTRONIC EQUIPMENT
Provided is a flat-type insulated wire that has improved bending resistance reliability by preventing the generation of cracks that reach the conductor while maintaining flexibility and heat-resistance softening properties, and that further allows for good insulating properties by having a high partial discharge inception voltage. The flat-type insulated wire (1) is provided with a flat-type conductor (2) of substantially rectangular cross-section, a plurality of baked-coating resin layers (3, 4, 5) formed on the flat-type conductor, and an extruded covering layer (6) formed so as to cover the baked-coating resin layer (5) which is the outermost layer among the plurality of baked-coating resin layers. The plurality of baked coating resin layers comprise two or more types of materials. The plurality of baked coating resin layers (3, 4, 5) are formed using two or more types of resins selected from the group consisting of a polyester-based resin, a polyester-imide resin, a polyamide-imide resin, and a polyimide resin containing trihydric or higher alcohol constituent components.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
The present invention provides: an insulation wire wherein a conductor is covered by at least one layer of an insulating material and there is at least one air bubble layer in the thickness direction in the covered layer, and the insulation wire has a portion the thickness of which is thin in either the length direction or the circumferential direction of the covered layer; a method of manufacturing therefor; a method of manufacturing a stator for a rotary electric machine; and a rotary electric machine.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01B 7/00 - Insulated conductors or cables characterised by their form
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
H01B 13/16 - Insulating conductors or cables by passing through, or dipping in, a liquid bathInsulating conductors or cables by spraying
H02K 3/04 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
33.
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.
H01B 7/00 - Insulated conductors or cables characterised by their form
H01B 7/29 - Protection against damage caused by external factors, e.g. sheaths or armouring by extremes of temperature or by flame
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01F 27/32 - Insulating of coils, windings, or parts thereof
34.
INSULATED WIRE AND METHOD FOR MANUFACTURING SAME, AND ROTATING ELECTRICAL MACHINE AND METHOD FOR MANUFACTURING SAME
An insulated wire in which at least one layer of an insulating material is coated around a conductor, wherein the insulated wire has a portion in which the relative permittivity is different in the length direction or the circumference direction in the same coating layer; a method for manufacturing the insulated wire; a rotating electrical machine; and a method for manufacturing the rotating electrical machine.
H01B 7/00 - Insulated conductors or cables characterised by their form
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01B 5/02 - Single bars, rods, wires or stripsBus-bars
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
H01B 13/14 - Insulating conductors or cables by extrusion
H02K 3/32 - Windings characterised by the shape, form or construction of the insulation
H02K 15/04 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
H02K 15/12 - Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
Provided is a flat insulated wire that maintains flexibility and resistance to thermal softening while improving bending resistance reliability by improving the adhesion between insulating layers and preventing the occurrence of cracks that reach a conductor, and that additionally exhibits excellent ATF resistance characteristics. The flat insulated wired (1) is provided with: a flat conductor (2) that has an approximately rectangular cross section; a thermosetting resin layer (3) that is formed to cover the flat conductor; a thermoplastic resin layer (4) that is formed to cover the thermosetting resin layer; and a thermoplastic resin layer (5) that is formed to cover the thermoplastic resin layer (4). The adhesion strength between the thermosetting resin layer (3) and the thermoplastic resin layer (4) and the adhesion strength between the thermoplastic resin layers (4) and (5) are respectively 50-100 gf/mm. The relative degree of crystallization in the thermoplastic resin layer (4) as calculated on the basis of the heat of fusion and the heat of crystallization measured by differential scanning calorimetry is 20-50%.
Provided is an insulated electric wire having: a heat-curable resin layer provided upon a conductor, either directly or via an insulating layer, said conductor having a rectangular cross-section; and a thermoplastic resin layer upon the heat-curable resin layer. The insulated electric wire has a liquid component in the heat-curable resin layer at a ratio of 1,000-20,000 ppm that has a boiling point of at least 150°C and becomes liquid at 25°C. Also provided are: a coil having this insulated electric wire wound thereon; an electric/electronic device comprising this coil; and a method for preventing cracking of insulated electric wires, which prevents cracks occurring in a thermoplastic resin layer acting as a coating resin layer from reaching a heat-curable resin layer by using the insulated electric wire comprising the liquid component at a ratio of 1,000-20,000 ppm in the heat-curable resin layer.
An insulating wire in which at least one heat-curing resin layer and at least one thermoplastic resin layer are provided in the stated order on a rectangular-cross-section conductor in which the corner sections at both ends of at least one of the short sides have a curvature radius r of 0.60 mm or less, the thickness t1 of the corner sections of the heat-curing resin layer and the thickness t2 of the corner sections of the thermoplastic resin layer satisfying the relationship t2/t1ឬ1 (1); a method for manufacturing the insulating wire; a motor coil; and an electric/electronic device.
Provided are an insulated wire, a coil, an electronic apparatus, and a method for preventing coating film separation in the insulated wire. In the cross-sectional shape of the insulated wire, which has a thermosetting resin layer on a conductor having a rectangular cross-section and has a thermoplastic resin layer at the outer periphery of the thermosetting resin layer, the thermosetting resin layer comprises two pairs of opposing sides and has four or more protrusions at which the film thickness is maximised. Each of the four sides has one or more of the four or more protrusions, or two or more of the opposing sides have two or more of the protrusions. With respect to each side that has a protrusion, the minimum film thickness / (the average maximum film thickness of the protrusions) is 0.6-0.9.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
39.
MULTILAYER INSULATED WIRE, COIL AND ELECTRICAL/ELECTRONIC DEVICE
A multilayer insulated wire that has a polyester resin layer, which is formed of a polyester resin containing at least a tri- or higher hydric alcohol constituent component, on a conductor, while having a PEEK resin layer, which is formed of a polyether ether ketone or a modified polyether ether ketone, on the polyester resin layer directly or with an intermediate layer being interposed therebetween; a coil which is obtained by winding this multilayer insulated wire; and an electrical/electronic device which uses this coil.
C09D 5/25 - Electrically-insulating paints or lacquers
C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
C09D 171/00 - Coating compositions based on polyethers obtained by reactions forming an ether link in the main chainCoating compositions based on derivatives of such polymers
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
H01B 7/00 - Insulated conductors or cables characterised by their form
Provided is an insulated wire having: a thermosetting resin coating (A) that is, directly or with an insulating layer (C) interposed therebetween, on a conductor having a rectangular cross section; and a thermoplastic resin coating (B) on the outer periphery of the thermosetting resin coating (A). The thermoplastic resin coating (B) has at least two thermoplastic resin layers. Adjacent thermoplastic resin layers are formed from different thermoplastic resins, and at least one of the thermoplastic resin layers is formed from PEEK or modified PEEK. The total thickness of the thermoplastic resin layers is 60-120 µm, and the thickness of the thinnest thermoplastic resin layer is 5-20 µm. Further provided are a coil into which this insulated cable has been wound, and an electrical device which is formed using this coil.
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
A coating thickness inspection device (20) is provided with: a displacement gauge (25); a displacement calculation unit (28a); and a determination unit (28b). The displacement gauge (25) measures the external shape of a rectangular wire (30) across the lengthwise direction thereof (external shape measurement step). The position calculation unit (28a) determines the position of a rectangular conductor (31) within the rectangular wire (30) across the lengthwise direction of the rectangular wire (30) (position calculation step). The determination unit (28b) determines whether the thickness across the peripheral direction of a coating section (32) as calculated on the basis of the results obtained by the displacement gauge (25) and the position calculation unit (28a) satisfies a standard thickness across the lengthwise direction of the rectangular wire (30) (determination step).
This flat electric wire is characterized by comprising: a stacked conductor which is configured by stacking, in the thickness direction, flat metal conductors that have a layer of a thermosetting resin formed on the outer periphery, said thermosetting resin having a glass transition temperature of 100°C-200°C and having an urethane bond; and a layer of a thermoplastic resin that has a 300°C or higher melting point on the outer periphery of the stacked conductor.
H02K 3/30 - Windings characterised by the insulating material
H02K 15/04 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
43.
FLAT ELECTRIC WIRE, MANUFACTURING METHOD THEREOF, AND ELECTRIC DEVICE
This flat electric wire comprises: a stacked conductor which is configured by stacking, in the thickness direction, flat metal conductors that have a layer of a first thermoplastic resin formed on the outer periphery, said first thermoplastic resin being an amorphous resin with no melting point or a crystalline resin having an amide bond; and a layer of a second thermoplastic resin having a 300°C or higher melting point disposed on the outer periphery of the stacked conductor.
H02K 3/30 - Windings characterised by the insulating material
H02K 15/04 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
44.
INSULATED WIRE AND ELECTRICAL AND ELECTRONIC EQUIPMENT, MOTOR, AND TRANSFORMER USING SAME
Provided is an insulated wire, which has a rectangular shape in cross-section, has a conductor having a rectangular shape in cross-section and an insulating layer that covers the conductor. The insulating layer has a foam layer formed from a thermosetting resin that includes bubbles and the cross-section thereof is a shape formed from flat parts and corner parts. Letting T1 [µm] be the thickness and ε1 the relative dielectric constant of the flat parts and T2 [µm] be the thickness and ε2 the relative dielectric constant of the corner parts, the insulated wire satisfies ε1 < 3 and (T2/ε2) > (T1/ε1). Also provided are electrical and electronic equipment, a motor, and a transformer using the insulated wire.
An invertor-surge resistant insulated wire provided with at least one layer of an enamel fusion layer (2) on the outer circumference of a conductor (1), and at least one layer of an extrusion-coating resin layer (3) on the outer side of the enamel fusion layer (2). The combined thickness of the enamel fusion layer (2) and the extrusion-coating resin layer (3) is equal to or greater than 50μm, the thickness of the enamel fusion layer (2) is equal to or less than 60μm, and the thickness of the extrusion-coating resin layer (3) is equal to or less than 200μm. The minimum tensile elasticity of the extrusion-coating resin layer (3) at 25-250ºC is equal to or greater than 100MPa. The relative dielectric constant of an insulating layer, which is a combination of the enamel fusion layer (2) and the extrusion-coating resin layer (3), is equal to or less than 3.5 at 25 ºC, and equal to or less than 5.0 at 250 ºC. The relationship between the relative dielectric constant (ε1') of the enamel fusion layer (2) at 250 ºC and the relative dielectric constant (ε2') of the extrusion-coating resin layer (3) at 250 ºC satisfies (ε2'/ε1')>1.
Provided is an insulated electric wire comprising a conductor, an insulation layer including a foam heat-curable resin and which covers the outer circumferential surface of the conductor, and an outside non-foam insulation layer that covers the outer circumferential surface of the insulation layer. The thickness deformation rate of the insulation layer when a pressure of 1 MPa is applied at 25°C is 15%-50%. The pencil hardness of the outside non-foam insulation layer is at least 4H and the ratio between the insulation layer thickness and the outside non-foam insulation layer thickness is 20:80-80:20. Also provided is a motor having this insulated electric wire wound around a stator slot, in a state in which pressure is applied in the direction in which the outer diameter of the insulated electric wire decreases, and the thickness of the insulation layer is reduced.
Provided are an insulating laminated body of enamel resin, and an inverter-surge resistant insulated wire and an electric appliance that include the insulating laminated body of enamel resin and a conductor. The insulating laminated body of enamel resin is formed to have a flat or tubular shape and provided with a foam region and a non-foam region on at least one surface of the foam region. The foam region is configured to include a bubble-free layer that does not contain bubbles, and, on both surface sides of the bubble-free layer, bubble layers comprising independent bubbles. The thickness of the bubble-free layer is thicker than the thickness of the partitions between the independent bubbles, and 5-60% of the thickness of the foam region. At least the bubble layers of the foam region are formed from a heat-curable resin.
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
An insulated wire which comprises: a conductor; a foamed insulating layer that directly or indirectly covers the outer circumferential surface of the conductor and contains a thermosetting resin having air cells; and an outer insulating layer that is arranged on the outer side of the foamed insulating layer and contains a thermosetting resin which has a melting point of 240°C or more in cases where the thermosetting resin is a crystalline resin, or which has a glass transition temperature of 240°C or more in cases where the thermosetting resin is an amorphous resin. An electrical device which uses this insulated wire. A method for producing an insulated wire, which comprises: a step wherein a varnish for forming a foamed insulating layer is applied over the outer circumferential surface of a conductor and the varnish is foamed during a baking process, thereby forming a foamed insulating layer; and a step wherein an outer insulating layer is formed by extrusion molding a thermoplastic resin composition for forming an outer insulating layer on the outer circumferential surface of the foamed insulating layer.
An insulated wire that comprises a multilayer insulating layer which is composed of two or more layers and which covers a conductor. The innermost insulating layer of the multilayer insulating layer is formed of a crystalline thermoplastic resin that has a storage modulus at 300°C of 10 MPa or more, and the outer insulating layer(s) other than the innermost insulating layer contain(s) an insulating layer that is formed of a crystalline thermoplastic resin that has a melting point of 260°C or more and a storage modulus at 25°C of 1,000 MPa or more. With respect to two adjacent insulating layers of this insulated wire, the storage modulus at 25°C of the thermoplastic resin of the outer insulating layer is equal to or smaller than that of the inner insulating layer. An electrical/electronic device which uses this insulated wire as a winding wire and/or a lead wire of a transformer that is incorporated in the electrical/electronic device.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
An inverter surge-resistant insulated wire wherein: at least one baked enamel layer and at least one extrusion coated resin layer, which is arranged on the outer side of the baked enamel layer, are provided around a conductor that has a rectangular cross-sectional shape; an adhesive layer having a thickness of 2-20 μm is provided between the baked enamel layer(s) and the extrusion coated resin layer(s); all of the extrusion coated resin layer(s) on the adhesive layer are formed of a same resin; the baked enamel layer(s) and the extrusion coated resin layer(s) in a cross-section of the inverter surge-resistant insulated wire have a rectangular cross-sectional shape; in the rectangular cross-sectional shape surrounding the conductor in the cross section and formed by the baked enamel layer(s) and the extrusion coated resin layer(s), both sides of at least one pair of sides among two pairs of sides that respectively face each other vertically or horizontally with respect to the conductor have a total thickness of the baked enamel layer(s) and the extrusion coated resin layer(s) of 80 μm or more, a thickness of the baked enamel layer(s) of 60 μm or less, and a thickness of the extrusion coated resin layer(s) of 200 μm or less; and the resin of the extrusion coated resin layer(s) has a melting point of from 300°C to 370°C (inclusive). A method for producing an inverter surge-resistant insulated wire, wherein an adhesive layer is formed around a baked enamel layer and a thermoplastic resin for forming an extrusion coated resin layer, said thermoplastic resin being in a molten state at a temperature that is higher than the glass transition temperature of the resin used for the adhesive layer, is extruded onto and brought into contact with the adhesive layer.
The present invention provides multi-layer insulated electrical wiring that has both heat resistance and withstand-voltage characteristics, the multi-layer insulated electrical wiring being created in order to satisfy IEC Standard Pub. 61558, which has more-stringent required voltage specifications; and provides an electrical/electronic device such as a transformer obtained by winding this insulated electrical wiring. The present invention is a multi-layer insulated electrical wiring comprising two or more insulated layers, and an electrical/electronic device that uses the insulated electrical wiring as a winding or lead for a transformer, wherein at least one insulation layer other than the outermost layer is an insulation layer comprising a resin having a melting point of 200°C or higher and a modulus of elongation at 25°C of 1,000 MPa or less, the outermost layer of the multi-layer insulated electrical wiring being sheathed by a resin material having a modulus of elongation at 25°C of 1,000 MPa or less.
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
An insulated electric wire, in which an insulating coating film comprising a heat-curable resin is provided on a conductive body directly or with another insulating layer interposed therebetween, wherein the insulating coating film comprising the heat-curable resin is a bubble-containing layer produced by burning a heat-curable resin varnish and a layer containing no bubble is formed as an upper layer or a lower layer for the bubble-containing layer.
H01F 27/32 - Insulating of coils, windings, or parts thereof
H02K 3/40 - Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
53.
INSULATED WIRE, ELECTRIC EQUIPMENT AND PROCESS FOR PRODUCING INSULATED WIRE
An insulated wire which comprises a conductor, a foamed insulation layer and a nonfoamed solid layer present on the outer periphery of the foamed insulation layer, wherein the nonfoamed solid layer contains a partial discharge resistant substance. This insulated wire combines a high partial discharge inception voltage, partial discharge resistance, heat resistance and abrasion (scratch) resistance.
H02K 3/30 - Windings characterised by the insulating material
H02K 15/04 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
54.
INSULATING COATING MATERIAL, INSULATED WIRE, AND METHOD FOR PRODUCING INSULATED WIRE
An insulating coating material in which a reducing agent having a boiling point of 160°C or higher is contained in an insulating coating material comprising a resin, whereby an insulating coat can be formed by coating and baking.
C09D 201/00 - Coating compositions based on unspecified macromolecular compounds
H01B 3/30 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes
Provided are a wire rod for an inductor and an inductor that utilizes said wire rod so that a Q factor can be improved with the inclusion also of a resistance value when providing a magnetic layer on a surface of a conductor. The wire rod for an inductor, said wire rod being used as a coil of the inductor, has a conductor and a magnetic layer that is formed on the surface of the conductor, wherein the thickness of the magnetic layer is more than 0 and not more than 3.0µm. This wire rod is used to obtain an inductor having a high Q factor.
Provided is an electromagnet wire rod, whereby output of apparatuses using electromagnets can be improved. An electromagnet wire rod (1, 11, 21) is to be used for an electromagnet coil that generates a magnetic field when a current is made to flow in the coil, and a surface layer of the conductor (2, 12, 22) is provided with a magnetic material layer (3, 13, 23).
[Problem] To provide an insulated wire with high dielectric breakdown because of superior interlayer adhesiveness, even when insulating resin coatings are laminated, and superior partial discharge resistance because low relative permittivity. [Solution] An insulated wire having at least two lamination units such that insulating layers (21, 23) and insulating layers (22, 24) having relative permittivity higher than the insulating layers (21, 23), respectively, are laminated directly or indirectly on a conductor (1) in that order from the conductor side.
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
Goods & Services
Non-ferrous metals and their alloys; non-ferrous metal wires
and their alloy wires; stainless steel wires. Electric wires and cables; insulated electric wires; coils
(electric wires); telecommunication devices and apparatus;
antennas. Retail services or wholesale services for non-ferrous metals
and their alloys; retail services or wholesale services for
electric wires and cables; retail services or wholesale
services for telecommunication devices and apparatus; retail
services or wholesale services for electrical insulating
materials.
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
Goods & Services
Electric wires and cables; insulated electric wires; coils, namely, electric wires; telecommunication devices and apparatus, namely, electric coils, magnetic coils, electromagnetic coils, and transformers; electric wires for motors, electricity generators and transformers; antennas [ Retail store services and wholesale store services featuring non-ferrous metals and their alloys; retail store services and wholesale store services featuring electric wires and cables; retail store services and wholesale store services featuring telecommunication devices and apparatus; retail store services and wholesale store services featuring electrical insulating materials ]
