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WO2016027847A1 - Fil électrique isolé et procédé de fabrication de machine électrique tournante l'utilisant - Google Patents

Fil électrique isolé et procédé de fabrication de machine électrique tournante l'utilisant Download PDF

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Publication number
WO2016027847A1
WO2016027847A1 PCT/JP2015/073334 JP2015073334W WO2016027847A1 WO 2016027847 A1 WO2016027847 A1 WO 2016027847A1 JP 2015073334 W JP2015073334 W JP 2015073334W WO 2016027847 A1 WO2016027847 A1 WO 2016027847A1
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WO
WIPO (PCT)
Prior art keywords
insulated wire
polyphenylene sulfide
insulating
sulfide resin
crystallinity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/073334
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English (en)
Japanese (ja)
Inventor
剛真 牛渡
森下　滋宏
百生　秀人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of WO2016027847A1 publication Critical patent/WO2016027847A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/30—Windings characterised by the insulating material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the present invention relates to an insulated wire used for a winding of an industrial motor and the like, and a method of manufacturing a rotating electrical machine using the insulated wire.
  • a partial discharge occurs even at a low voltage, and the insulating coating that ensures the insulation performance of the insulated wire is gradually eroded by the partial discharge. There is a concern that it will eventually result in poor insulation.
  • PDIV Partial Discharge Acceptance Voltage
  • This partial discharge start voltage can be increased by lowering the relative dielectric constant of the insulating film than before or by increasing the film thickness of the insulating film.
  • the relative dielectric constant of fluorine-containing polymers for example, polyimide (PI) resin or polyamideimide (PAI) resin
  • PI polyimide
  • PAI polyamideimide
  • the film thickness of the insulating film is changed from 100 ⁇ m to 200 ⁇ m so that it can withstand the high drive voltage of an industrial motor and inverter drive. It is necessary to make it as thick as possible.
  • the film thickness of the insulating film that can be formed by one coating is about several ⁇ m, in order to increase the film thickness of the insulating film from about 100 ⁇ m to about 200 ⁇ m, It is necessary to significantly increase the number of paintings than before, and the price of industrial motors increases due to the increase in the number of paintings. Therefore, it is not practical to form an insulating coating by the usual enamel coating method. There is also a problem that the risk of occurrence of defects such as the formation of granular defects in the insulating coating increases due to the increase in the thickness.
  • thermoplastic resin a resin such as a polyphenylene sulfide (PPS) resin, a polyether sulfone (PES) resin, a polyetherimide (PEI) resin, or a polyetheretherketone (PEEK) resin may be used.
  • PPS polyphenylene sulfide
  • PES polyether sulfone
  • PEI polyetherimide
  • PEEK polyetheretherketone
  • Polyphenylene sulfide resin is a crystalline polymer, and it is known that chemical resistance and heat resistance are improved by crystallization. Therefore, polyphenylene sulfide resin is molded into a desired shape (for example, injection molding or extrusion molding). When the polyphenylene sulfide resin is not crystallized later, the polyphenylene sulfide resin is usually heated to a temperature equal to or higher than the crystallization temperature, thereby increasing the crystallinity of the polyphenylene sulfide resin to produce a product.
  • the chemical resistance and heat resistance are improved by heating the insulating film to a temperature higher than the crystallization temperature to increase the crystallinity of the insulating film.
  • Patent Document 1 assembles an armature of a rotating electric machine that involves deformation processing of an insulating wire in a state where the polyphenylene sulfide resin composition of the extrusion-coated resin layer formed on the outer periphery of the conductor is not crystallized.
  • the manufacturing method which crystallizes the polyphenylene sulfide resin composition of an insulated wire by heating the insulated wire after completion
  • Patent Document 1 when the crystallinity of the insulating film made of polyphenylene sulfide resin is low and the hardness thereof is low (insulating film is soft), in the assembly of the armature of the subsequent rotating electric machine, the insulated wire is attached to the core slot. There is a risk of poor insulation due to wear (for example, scratches or indentations) generated in the insulating film due to pressing or rubbing against a molding jig or the like during insertion or coil end molding.
  • wear for example, scratches or indentations
  • the insulating film may be cracked or broken. .
  • An object of the present invention is to provide an insulated wire having high workability and wear resistance while the insulating coating is formed of polyphenylene sulfide resin.
  • Another object of the present invention is to provide a method of manufacturing a rotating electrical machine using the insulated wire.
  • the insulated wire in one embodiment of the present invention includes a conductor and an insulating layer formed around the conductor, and the insulating layer has a temperature of 310 ° C. and a shear rate of 243 sec ⁇ 1 . It has an insulating film formed by melt extrusion coating of a polyphenylene sulfide resin having a viscosity of 300 Pa ⁇ s or more and 1150 Pa ⁇ s or less, and the insulating film has a crystallinity of 85% or more.
  • the insulating coating may be an outermost layer of the insulating layer.
  • the insulating layer may include an enamel baking layer formed around the conductor and the insulating coating formed around the enamel baking layer.
  • the polyphenylene sulfide resin may have a weight average molecular weight such that the viscosity is from 300 Pa ⁇ s to 1150 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 .
  • the manufacturing method of the rotary electric machine in other embodiment of this invention includes heating the said insulated wire to 120 to 200 degreeC, after assembling the armature of a rotary electric machine, deforming the said insulated wire. .
  • an insulated wire 100 includes a conductor 101 and an insulating layer 102 formed around the conductor 101.
  • the conductor 101 is made of a highly conductive metal such as copper (eg, low oxygen copper or oxygen-free copper) or aluminum, and has a rectangular wire having a rectangular cross section, a round wire having a circular cross section, or a circular cross section. It consists of a stranded wire formed by twisting a plurality of round wires or the like.
  • the insulating layer 102 has an insulating coating 103 formed by melt extrusion coating a polyphenylene sulfide resin having a viscosity of 300 Pa ⁇ s to 1150 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1.
  • the insulating coating 103 needs to have a crystallinity of 85% or more.
  • the degree of crystallinity [%] is the crystallization heat (exothermic enthalpy) of cold crystallization when measured by raising the temperature from room temperature (40 ° C.) by differential scanning calorimetry (DSC: Differential Scanning Calorimetry) [J / When g] is Hc and heat of fusion (endothermic enthalpy) [J / g] by differential scanning calorimetry is Hm, it is expressed by equation (1).
  • the reason why the crystallinity of the insulating coating 103 made of polyphenylene sulfide resin before the deformation processing of the insulated wire 100 is 85% or more is that the crystallinity of the insulating coating 103 before the deformation processing of the insulated wire 100 is 85. If it is less than%, the wear resistance of the insulated wire 100 is reduced, so that when the armature of the rotating electrical machine is assembled, the insulation coating 103 is worn and the thickness of the insulation coating 103 is reduced. This is because electrical insulation characteristics cannot be obtained.
  • the insulation coating 103 before the deformation of the insulated wire 100 is performed.
  • the crystallinity of is desirably 90% or more.
  • the insulating film 103 is preferably heated to a temperature equal to or higher than the cold crystallization temperature of the polyphenylene sulfide resin.
  • the insulation film 103 is heated to a cold crystallization temperature of 120 ° C. or more and 200 ° C. or less, so that the degree of crystallinity of the insulation film 103 before the deformation of the insulated wire 100 is 85% or more. It becomes possible.
  • the polyphenylene sulfide resin can be crystallized to make the insulating film 103 have a crystallinity of 85% or more. Since the insulating coating 103 may be deformed by lowering, it is desirable to increase the crystallinity of the insulating coating 103 by heating the insulating coating 103 to 200 ° C. or lower.
  • the heating of the insulating coating 103 may be performed after the insulated wire 100 is manufactured or during the manufacturing of the insulated wire 100.
  • the degree of crystallinity of the insulating coating 103 before the deformation processing is performed on the insulated wire 100 is 85% or more, the insulating coating 103 is less likely to be worn due to its increased hardness.
  • a machine such as a bending characteristic and an elongation characteristic of the insulating coating 103 when the insulating electric wire 100 is deformed. Therefore, there is a high possibility that the insulating coating 103 will be cracked or broken when the insulated wire 100 is deformed.
  • the present inventors have made extensive studies on the insulated wire 100 including the insulating coating 103 formed by melt extrusion coating of polyphenylene sulfide resin, and as a result, the viscosity of the polyphenylene sulfide resin constituting the insulating coating 103 is increased. It has been found that by setting the predetermined range, it is possible to improve the mechanical characteristics of the insulating coating 103 and improve the workability of the insulated wire 100.
  • the present inventors have formed a polyphenylene sulfide resin having a viscosity of 300 Pa ⁇ s or more and 1150 Pa ⁇ s or less when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 and is formed by melt extrusion coating and the insulated wire 100.
  • the insulating film 103 having a crystallinity of 85% or more before being deformed is excellent in mechanical characteristics, and by adopting the insulating film 103, the wear resistance of the insulated wire 100 is secured. It has been found that workability can be improved.
  • the viscosity of the polyphenylene sulfide resin can be adjusted by changing the weight average molecular weight of the polyphenylene sulfide resin.
  • the insulated wire 100 in order to increase the space factor of the conductor 101 in the core slot, preferably employs the conductor 101 made of a rectangular wire having a rectangular cross section, and includes the conductor 101 made of a rectangular wire having a rectangular cross section.
  • the viscosity at a temperature of 310 ° C. and a shear rate of 243 sec ⁇ 1 is 300 Pa ⁇ s or more and 1150 Pa ⁇ s or less.
  • the insulating coating 103 is cracked or broken by adopting the insulating coating 103 that is formed by melt extrusion coating of the polyphenylene sulfide resin and having a crystallinity of 85% or more before the insulated wire 100 is deformed. It is possible to prevent the occurrence of the It has also been found that it can be applied.
  • the insulating coating 103 is not cracked. There was no occurrence of tearing and the like, and it was possible to appropriately perform deformation processing accompanied with edgewise bending.
  • a polyphenylene sulfide resin having a viscosity of less than 300 Pa ⁇ s at a temperature of 310 ° C. and a shear rate of 243 sec ⁇ 1 is formed by melt extrusion coating and crystallized before the insulated wire is deformed.
  • an insulating film having a degree of conversion of 85% or more was employed, the insulating film was broken when the insulated wire was stretched by about 10%, and could not withstand deformation processing involving edgewise bending. .
  • a polyphenylene sulfide resin having a viscosity of more than 1150 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 is formed by melt extrusion coating, and the degree of crystallinity before the deformation processing is performed on the insulated wire.
  • an insulating coating of 85% or more is employed, the workability when melt-extrusion coating the conductor 101 is reduced because the melt viscosity of the polyphenylene sulfide resin is large and the fluidity is poor.
  • a polyphenylene sulfide resin having a viscosity of 300 Pa ⁇ s to 1150 Pa ⁇ s at a temperature of 310 ° C. and a shear rate of 243 sec ⁇ 1 is melt-extruded.
  • Insulating film 103 having a crystallinity of 85% or more before being deformed is formed.
  • the polyphenylene sulfide resin refers to a resin having a structure having a repeating unit represented by the chemical formula (1) in principle, but in addition to this structure, unless the flexibility and heat resistance of the resin are greatly impaired, A sulfoxide group or an ether group may be included, and a substituent may be included in the benzene ring.
  • the molecular chain may contain a branched structure or a crosslinked structure via a thioether group or an ether group.
  • the insulating layer 102 may have another insulating film formed of a material different from that of the insulating film 103, a self-bonding layer, and the like.
  • the insulating coating 103 needs to be the outermost layer of the insulating layer 102.
  • the insulating layer 102 has the insulating coating 103 formed directly around the conductor 101, but the enamel baking layer formed around the conductor 101; And an insulating coating 103 formed around the enamel baking layer.
  • the insulating coating 103 is indirectly formed around the conductor 101 through the enamel baking layer.
  • the enamel baking layer may be a single layer or multiple layers, and a paint containing polyamideimide resin, polyimide resin, or polyesterimide (PEI) resin is applied to the surface of the conductor 101 and baked in a baking furnace. Is obtained.
  • PEI polyesterimide
  • the insulated wire 100 When manufacturing a rotating electrical machine using the insulated wire 100 described so far, after assembling the armature of the rotating electrical machine while deforming the insulated wire 100, the insulated wire 100 is post-heated to 120 ° C. or higher. Thus, the residual stress of the insulated wire 100 is reduced, and the crystallinity of the insulating coating 103 made of polyphenylene sulfide resin is set to be larger than 85% and not larger than 100%.
  • the chemical resistance of the insulated wire 100 can be improved.
  • the insulated wire 100 employs the insulating coating 103 having a crystallinity of 85% or more before being deformed on the insulated wire 100, so that the chemical resistance is high. Chemical resistance can be further increased by post-heating to reduce the chemical resistance. At the same time, the chemical resistance can be improved by setting the crystallinity of the insulating coating 103 to be greater than 85% and not greater than 100%.
  • the heating temperature of the insulated wire 100 by increasing the heating temperature of the insulated wire 100, the residual stress of the insulated wire 100 is reduced and the heating time required for the crystallinity of the insulating coating 103 to be greater than 85% and less than 100% is shortened.
  • the heating temperature of the insulated wire 100 is too high, there is a high possibility that the insulating coating 103 will be deformed due to the low elastic modulus of the polyphenylene sulfide resin.
  • the heating temperature of the insulated wire 100 is preferably 150 ° C. or higher and 200 ° C. or lower.
  • the heating time if the heating temperature of the insulated wire 100 is about 150 ° C., the heating time is about 10 minutes, and if the heating temperature of the insulated wire 100 is 200 ° C., it becomes about several minutes.
  • the insulating coating 103 can be formed by directly melt-extrusion-coating polyphenylene sulfide resin around the conductor 101, but in order to improve the adhesion between the conductor 101 and the insulating coating 103. An adhesion treatment may be performed.
  • the adhesion treatment it is considered that the surface of the conductor 101 is chemically or physically modified, or an adhesion layer for improving the adhesion between the conductor 101 and the insulating coating 103 is interposed.
  • the adhesion layer is not limited, but polysulfone (PSU) resin, polyphenylsulfone (PPSU) resin, polyethersulfone (PES) resin, polyamide resin, polyetherimide resin, polyamideimide resin, polyimide Examples thereof include resins, epoxy resins, epoxy-modified olefin copolymer resins, maleic acid-modified olefin copolymer resins, and unsaturated carboxylic acid resins.
  • the present invention it is possible to provide an insulated wire having high workability and wear resistance while the insulating coating is formed of polyphenylene sulfide resin, and a method for manufacturing a rotating electrical machine using the insulated wire.
  • Example 1 Using a rectangular copper wire with a conductor size of 1.5 mm ⁇ 3.0 mm, a polyphenylene sulfide resin having a viscosity of 322 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 is directly above the rectangular copper wire. After forming an insulating film having a film thickness of about 150 ⁇ m by melt extrusion coating at about 300 ° C., insulation is achieved by adjusting the heating time when heating the insulated wire to 120 ° C. An insulated wire having a crystallinity of 85% before the deformation of the wire was obtained.
  • Example 2 Using a rectangular copper wire with a conductor size of 1.5 mm ⁇ 3.0 mm, a polyphenylene sulfide resin having a viscosity of 322 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 is directly above the rectangular copper wire. After forming an insulating film having a film thickness of about 150 ⁇ m by melt extrusion coating at about 300 ° C., insulation is achieved by adjusting the heating time when heating the insulated wire to 120 ° C. An insulated wire having a crystallinity of 100% before being deformed was obtained.
  • Example 3 Using a rectangular copper wire having a conductor size of 1.5 mm ⁇ 3.0 mm, a polyphenylene sulfide resin having a viscosity of 1120 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 is directly above the rectangular copper wire. After forming an insulating film having a film thickness of about 150 ⁇ m by melt extrusion coating at about 300 ° C., insulation is achieved by adjusting the heating time when heating the insulated wire to 120 ° C. An insulated wire having a crystallinity of 86% before the deformation of the wire was obtained.
  • Example 4 Using a rectangular copper wire having a conductor size of 1.5 mm ⁇ 3.0 mm, a polyphenylene sulfide resin having a viscosity of 1120 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 is directly above the rectangular copper wire. After forming an insulating film having a film thickness of about 150 ⁇ m by melt extrusion coating at about 300 ° C., insulation is achieved by adjusting the heating time when heating the insulated wire to 120 ° C. An insulated wire having a crystallinity of 100% before being deformed was obtained.
  • the workability of the insulated wires is 180 ° at a bending radius of 2 mm after applying 20% and 30% preliminary stretching to the insulated wires obtained in Examples 1 to 4 and Comparative Examples 1 to 6.
  • the deformation process accompanied by edgewise bending was performed, and it was observed and evaluated whether or not the insulating coating had cracks or tears.
  • the insulated wires obtained in Examples 1 to 4 using polyphenylene sulfide resin having a viscosity of 322 Pa ⁇ s or 1120 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 are Even if the insulation film has a crystallinity of 85% or more before the insulation wire is deformed, the insulation film is cracked or broken by deformation with edgewise bending after 30% pre-stretching. Was not generated and the workability was good.
  • the insulated wires obtained in Comparative Examples 3 and 4 using a polyphenylene sulfide resin having a viscosity of 176 Pa ⁇ s when the temperature is 310 ° C. and the shear rate is 243 sec ⁇ 1 are obtained by crystallizing the insulating film.
  • the degree was 80% or more, the insulating film was broken by deformation processing accompanied by edgewise bending after pre-extension of 10% and 30%, and the workability was poor.
  • the viscosity of the polyphenylene sulfide resin is such that after the polyphenylene sulfide resin is filled in the barrel and melted, the polyphenylene sulfide resin is pushed down with a piston at a constant speed, and the polyphenylene sulfide resin is extruded through a die at the bottom of the barrel.
  • the pressure of the polyphenylene sulfide resin was monitored by a pressure sensor arranged near the inlet of the die, the pressure when the equilibrium point was reached was recorded, and the pressure was calculated from this pressure and the flow rate ratio of the polyphenylene sulfide resin.
  • the insulation resistance of the insulated wires was determined by separating the insulation coatings of the insulated wires obtained in Examples 1 to 4 and Comparative Examples 1 to 6 from the conductor to obtain insulation coating pieces having different crystallinity levels, and then insulating coatings.
  • the film piece was evaluated by measuring the pencil hardness according to JIS K 5600-5-4.
  • the wear resistance of the insulated wire is remarkably improved.
  • the chemical resistance of the insulated wire was determined by subjecting the insulated wire obtained in Example 1 and Comparative Example 3 to deformation processing with an extension of 2%, and then changing only the insulated wire obtained in Example 1 to 120 ° C. By heating, the residual stress of the insulated wires is reduced and the crystallinity of the insulation film is set to 100%, and these insulated wires are immersed in xylene at 60 ° C. for 30 minutes, or automatic transmission oil at 150 ° C. ( After immersing in ATF (Automatic Transmission Fluid) for only 1000 hours, the state of occurrence of cracks and tears in the insulating coating was observed and evaluated.
  • ATF Automatic Transmission Fluid
  • Example 2 As can be seen from Table 2, the insulated wire obtained in Example 1 maintains its appearance and has high chemical resistance regardless of whether it is immersed in xylene or automatic transmission fluid.
  • the insulated wire obtained in Comparative Example 3 maintained its appearance when immersed in automatic transmission oil, but when immersed in xylene, cracked streaks were formed on the surface of the insulating coating. It has occurred.
  • the present invention can be applied to an insulated wire used for a winding of an industrial motor or the like and a method for manufacturing a rotating electrical machine using the insulated wire.
  • Insulated wire 101 Conductor 102 Insulating layer 103 Insulating coating

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Organic Insulating Materials (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Insulated Conductors (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Un fil électrique isolé (100) selon un mode de réalisation de la présente invention est pourvu d'un conducteur (101) et d'une couche isolante (102) formée autour du conducteur (101), la couche isolante (102) ayant un film isolant (103) formé par fusion-extrusion, et par revêtement avec celle-ci, d'une résine de sulfure de polyphénylène dont la viscosité, lorsque la température est de 310 °C et la vitesse de cisaillement de 243 sec-1, est de 300 à 1 150 Pa・s inclus, la cristallinité du film isolant (103) étant supérieure ou égale à 85 %. Un procédé de fabrication d'une machine électrique tournante selon un autre mode de réalisation de la présente invention consiste à chauffer le fil électrique isolé (100) à une température de 120 à 200 °C inclus après assemblage de l'induit de la machine électrique tournante tout en appliquant un traitement de déformation au fil électrique isolé (100).
PCT/JP2015/073334 2014-08-22 2015-08-20 Fil électrique isolé et procédé de fabrication de machine électrique tournante l'utilisant Ceased WO2016027847A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014169567A JP2016046098A (ja) 2014-08-22 2014-08-22 絶縁電線及びこれを用いた回転電機の製造方法
JP2014-169567 2014-08-22

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WO2016027847A1 true WO2016027847A1 (fr) 2016-02-25

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010055964A (ja) * 2008-08-28 2010-03-11 Furukawa Electric Co Ltd:The 絶縁ワイヤ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010055964A (ja) * 2008-08-28 2010-03-11 Furukawa Electric Co Ltd:The 絶縁ワイヤ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAKEO YASUDA: "Plastic Zairyo no Kaku Dotokusei no Shikenho to Hyoka Kekka <20>", PLASTICS, vol. 52, no. 9, September 2001 (2001-09-01), pages 96 - 103, ISSN: 05557887 *

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