WO2023153246A1 - 絶縁電線、コイル、回転電機及び電気・電子機器 - Google Patents

絶縁電線、コイル、回転電機及び電気・電子機器 Download PDF

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Publication number
WO2023153246A1
WO2023153246A1 PCT/JP2023/002732 JP2023002732W WO2023153246A1 WO 2023153246 A1 WO2023153246 A1 WO 2023153246A1 JP 2023002732 W JP2023002732 W JP 2023002732W WO 2023153246 A1 WO2023153246 A1 WO 2023153246A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulated wire
wire
filler
insulating layer
conductor
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/JP2023/002732
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
克巳 長田
道明 山端
秀雄 福田
武文 梶
裕樹 高橋
英嗣 騎馬
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.)
Denso Corp
Essex Furukawa Magnet Wire Japan Co Ltd
Original Assignee
Denso Corp
Essex Furukawa Magnet Wire Japan Co 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 Denso Corp, Essex Furukawa Magnet Wire Japan Co Ltd filed Critical Denso Corp
Priority to CN202380014763.9A priority Critical patent/CN118318278A/zh
Priority to KR1020247015805A priority patent/KR20240148797A/ko
Priority to EP23752711.4A priority patent/EP4478381A4/en
Priority to JP2023580176A priority patent/JP7765506B2/ja
Publication of WO2023153246A1 publication Critical patent/WO2023153246A1/ja
Priority to US18/675,802 priority patent/US20240312668A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/301—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen or carbon in the main chain of the macromolecule, not provided for in group H01B3/302
    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
    • H01B3/306—Polyimides or polyesterimides
    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/308—Wires with resins
    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
    • H01B3/427—Polyethers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters
    • 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
    • H01B7/0009—Details relating to the conductive cores
    • 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
    • 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
    • H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect

Definitions

  • High-speed switching elements, inverter motors, coils for electric and electronic devices such as transformers use insulated wires with resin insulating coatings on the outer peripheral surfaces of linear metal conductors as magnet wires.
  • the insulation film of the insulated wire is formed by applying and baking a thermosetting resin, extruding and coating a thermoplastic resin, or combining these.
  • an insulated wire using a twisted wire (collective conductor) formed by twisting a plurality of strands (divided conductors) together as a conductor is known. It is known that an increase in resistance due to the skin effect when used at high frequencies can be suppressed by forming an assembly conductor with a plurality of thin strands and using an insulated wire with this assembly conductor as a winding for a coil or the like. ing.
  • the conductor wire constituting the element wire (divided conductor) used in the present invention a wide range of metal wires that have been conventionally used for insulated wires can be used, and examples include metal conductors such as copper wires and aluminum wires. .
  • copper strands are preferred, and among others, the copper used is preferably low-oxygen copper having an oxygen content of 30 ppm or less, more preferably low-oxygen copper or oxygen-free copper having an oxygen content of 20 ppm or less. If the oxygen content is 30 ppm or less, when the wires are melted by heat for welding, voids due to oxygen contained in the welded portion do not occur, preventing deterioration of the electrical resistance of the welded portion.
  • the strength of the welded portion can be maintained.
  • various copper alloys or aluminum alloys can be used depending on the application after considering the necessary mechanical strength.
  • pure aluminum with a purity of 99.00% or more is preferable because it provides a high current value.
  • the wire insulating layer can be formed by a normal method.
  • the wire insulation layer is formed by a coating/baking process in which a thermosetting resin varnish is applied and baked.
  • a method of repeating coating and baking to form a wire insulation layer with a desired thickness is mentioned. be done.
  • This varnish contains a resin component, a solvent, and, if necessary, a curing agent for the resin component or various additives.
  • the solvent is preferably an organic solvent, and a solvent that can dissolve or disperse the resin component is appropriately selected.
  • the number of repetitions of coating and baking for forming the wire insulating layer is preferably 1 time or more and 10 times or less, more preferably 1 time or more and 5 times or less.
  • a usual method can be selected as the varnish coating method, and examples thereof include a method using a varnish coating die having an opening having a shape similar or substantially similar to the cross-sectional shape of the conductor. Baking of the varnish is usually carried out in a baking furnace. The conditions at this time can be determined according to the type of resin component or solvent. For example, conditions include a furnace temperature of 400 to 650° C. and a passage time of 10 to 90 seconds.
  • polymer alloy ABS/polycarbonate, nylon 6,6, aromatic polyamide resin (aromatic PA), polyphenylene ether/nylon 6,6, polyphenylene ether/polystyrene, polybutylene terephthalate/polycarbonate Polymer containing the above engineering plastics alloys. These resins may be used alone, or two or more resins may be mixed and used.
  • the thermoplastic resin preferably contains at least one of polyetheretherketone (PEEK), polyphenylene sulfide (PPS), polyethylene terephthalate (PET), and nylon 6,6 (nylon 66, PA66).
  • the voids generated by gathering the strands are filled with the filler, so the voids in the insulated wire are eliminated or reduced.
  • the ratio (porosity) of the voids 14 to the cross-sectional area of the insulated wire is set from the viewpoint of preventing appearance defects of the outer insulating layer due to thermal expansion of gas in the voids when the outer insulating layer is formed. , is preferably 0.55% or less, more preferably 0.35% or less, still more preferably 0.20% or less, further preferably 0.16% or less, and 0.5% or less. It is more preferably 15% or less, and even more preferably 0.14% or less.
  • voids mean voids (air portions, gaps) generated between strands or between strands and an outer insulation layer, and air bubbles contained in the outer insulation layer itself (intralayer of the outer insulation layer It does not include voids such as air bubbles contained between layers).
  • the porosity can be calculated, for example, by the method described in Examples.
  • a thermoplastic resin layer is formed by applying a filler containing a thermoplastic resin on the outer periphery of the above-described wires (or wire insulation layer), and these wires are are assembled, and after forming the collective conductor so as to have a desired cross-sectional shape, the collective conductor is heated to impart fluidity to the filler layer, so that the strands or the strand insulation layer are formed by capillary action.
  • the filling material is moved into the voids along the lines to eliminate or reduce the voids, and the collective conductor after heating is covered with the outer skin insulating layer.
  • a coil used in a stator of a rotating electrical machine, etc. can be mentioned as a product obtained by electrically connecting predetermined portions after bending the insulated wire of the present invention.
  • Such a coil for example, as shown in FIG. A coil 33 (see FIGS. 2 and 3) made by alternately connecting two open ends (terminals) 34a of the segment 34, such as a U-shape, is exemplified.
  • An enamel layer (filler layer) made of the filler was formed by applying a thermoplastic resin (filler) to be the filler region 13 on the outer periphery of the wire 11a or the wire insulating layer 11b and baking it. . Specifically, using a circular die, the thermoplastic resin (filler) varnish shown in Table 1 was applied to the outer circumference of the wire 11a or the wire insulating layer 11b, and the furnace was set to 450°C. It was passed through a baking furnace with a length of 8 m at a speed that gave a passing time of 15 seconds. This was repeated several times to obtain a strand on which an enamel layer made of a filler was formed.
  • Examples 1 to 9 and 11 Seven strands (Examples 1 to 9 and 11) or 37 strands (Example 10) of which the enamel layer made of the above-mentioned filler was formed were prepared, and these strands were prepared mainly for the center strand. twisted together.
  • the twisted wire was molded using a mold to produce a rectangular (Examples 1 to 10) or circular (Example 11) twisted wire 11 .
  • thermosetting resin varnish is as follows.
  • ⁇ PAI polyamideimide
  • ⁇ PI polyimide (Thermoplastic resin)
  • extrusion coating is performed using an extrusion die so that the outer shape of the cross section of the outer insulating layer is similar to the shape of the mold used when molding the stranded wire 11, and twisted.
  • An outer insulating layer 12 made of a thermoplastic resin having a thickness of 100 ⁇ m was formed on the outer circumference of the wire 11 .
  • ⁇ PA66 Nylon 6,6
  • PET polyethylene terephthalate
  • PPS polyphenylene sulfide
  • PEEK polyether ether ketone

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Insulated Conductors (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
PCT/JP2023/002732 2022-02-08 2023-01-27 絶縁電線、コイル、回転電機及び電気・電子機器 Ceased WO2023153246A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN202380014763.9A CN118318278A (zh) 2022-02-08 2023-01-27 绝缘电线、线圈、旋转电机和电气/电子设备
KR1020247015805A KR20240148797A (ko) 2022-02-08 2023-01-27 절연 전선, 코일, 회전 전기 및 전기·전자 기기
EP23752711.4A EP4478381A4 (en) 2022-02-08 2023-01-27 INSULATED WIRE, COIL, ROTARY ELECTRICAL MACHINE AND ELECTRICAL/ELECTRONIC DEVICE
JP2023580176A JP7765506B2 (ja) 2022-02-08 2023-01-27 絶縁電線、コイル、回転電機及び電気・電子機器
US18/675,802 US20240312668A1 (en) 2022-02-08 2024-05-28 Insulated wire, coil, rotating electrical machine, and electrical or electronic equipment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-018228 2022-02-08
JP2022018228 2022-02-08

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/675,802 Continuation US20240312668A1 (en) 2022-02-08 2024-05-28 Insulated wire, coil, rotating electrical machine, and electrical or electronic equipment

Publications (1)

Publication Number Publication Date
WO2023153246A1 true WO2023153246A1 (ja) 2023-08-17

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PCT/JP2023/002732 Ceased WO2023153246A1 (ja) 2022-02-08 2023-01-27 絶縁電線、コイル、回転電機及び電気・電子機器

Country Status (6)

Country Link
US (1) US20240312668A1 (https=)
EP (1) EP4478381A4 (https=)
JP (1) JP7765506B2 (https=)
KR (1) KR20240148797A (https=)
CN (1) CN118318278A (https=)
WO (1) WO2023153246A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119296858B (zh) * 2024-12-11 2025-03-28 佳腾电业(赣州)股份有限公司 一种绝缘电线及其制备方法、线圈和电子/电气设备
CN119296861B (zh) * 2024-12-11 2025-03-28 佳腾电业(赣州)股份有限公司 一种绝缘电线及其制备方法、线圈和电子/电气设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136944U (ja) * 1984-08-09 1986-03-07 東京特殊電線株式会社 偏向ヨ−ク
JPS62133613A (ja) * 1985-12-05 1987-06-16 株式会社フジクラ 水密絶縁電線の製造方法
JPH03248506A (ja) * 1988-02-03 1991-11-06 Totoku Electric Co Ltd 集合絶縁電線
JP2009199749A (ja) 2008-02-19 2009-09-03 Sumitomo Electric Ind Ltd 導線及び導線の製造方法、モータ、リアクトル
WO2019176254A1 (ja) * 2018-03-12 2019-09-19 古河電気工業株式会社 集合導線、集合導線の製造方法およびセグメントコイル
JP2022018228A (ja) 2020-07-15 2022-01-27 東レ・ファインケミカル株式会社 シリコーン重合体およびその製造方法

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JPH08185717A (ja) * 1994-12-28 1996-07-16 Kanegafuchi Chem Ind Co Ltd 自己融着性集合絶縁電線及びその製造方法
JPH09161564A (ja) * 1995-12-04 1997-06-20 Opt D D Melco Lab:Kk 自己融着集合線の製造方法
US6331353B1 (en) * 1999-08-17 2001-12-18 Pirelli Cables And Systems Llc Stranded conductor filling compound and cables using same
US20050006135A1 (en) * 2003-05-30 2005-01-13 Kurabe Industrial Co., Ltd. Airtight cable and a manufacturing method of airtight cable
EP2648192B1 (en) * 2010-11-29 2015-04-22 J-Power Systems Corporation Water blocking electric cable
CN105518807B (zh) 2013-09-06 2018-05-01 古河电气工业株式会社 扁平电线及其制造方法以及电气设备
KR20180090255A (ko) * 2015-12-04 2018-08-10 후루카와 덴키 고교 가부시키가이샤 자기 융착성 절연 전선, 코일 및 전기·전자 기기

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136944U (ja) * 1984-08-09 1986-03-07 東京特殊電線株式会社 偏向ヨ−ク
JPS62133613A (ja) * 1985-12-05 1987-06-16 株式会社フジクラ 水密絶縁電線の製造方法
JPH03248506A (ja) * 1988-02-03 1991-11-06 Totoku Electric Co Ltd 集合絶縁電線
JP2009199749A (ja) 2008-02-19 2009-09-03 Sumitomo Electric Ind Ltd 導線及び導線の製造方法、モータ、リアクトル
WO2019176254A1 (ja) * 2018-03-12 2019-09-19 古河電気工業株式会社 集合導線、集合導線の製造方法およびセグメントコイル
JP2022018228A (ja) 2020-07-15 2022-01-27 東レ・ファインケミカル株式会社 シリコーン重合体およびその製造方法

Non-Patent Citations (1)

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Title
See also references of EP4478381A4

Also Published As

Publication number Publication date
EP4478381A4 (en) 2026-02-18
JPWO2023153246A1 (https=) 2023-08-17
EP4478381A1 (en) 2024-12-18
US20240312668A1 (en) 2024-09-19
CN118318278A (zh) 2024-07-09
JP7765506B2 (ja) 2025-11-06
KR20240148797A (ko) 2024-10-11

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