WO2022004298A1 - コイル、モータ及び製造方法 - Google Patents

コイル、モータ及び製造方法 Download PDF

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Publication number
WO2022004298A1
WO2022004298A1 PCT/JP2021/021734 JP2021021734W WO2022004298A1 WO 2022004298 A1 WO2022004298 A1 WO 2022004298A1 JP 2021021734 W JP2021021734 W JP 2021021734W WO 2022004298 A1 WO2022004298 A1 WO 2022004298A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
coating film
coil
bent portion
edgewise coil
Prior art date
Application number
PCT/JP2021/021734
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
慶一郎 額田
隆信 佐藤
Original Assignee
パナソニックＩｐマネジメント株式会社
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 パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN202180044730.XA priority Critical patent/CN115867995A/zh
Priority to JP2022533780A priority patent/JPWO2022004298A1/ja
Publication of WO2022004298A1 publication Critical patent/WO2022004298A1/ja

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing 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
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • 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

Definitions

  • the present disclosure relates generally to coils, motors and manufacturing methods, and more particularly to coils, motors and manufacturing methods having conductors and coatings.
  • stator core having a large number of concave slots and a large number of convex magnetic poles alternately in the circumferential direction
  • magnet wire having a rectangular cross section with an insulating coating formed on the outer peripheral surface of the metal wire.
  • the space between both side surfaces of the slot and the space between both side surfaces is formed so as to decrease from the bottom of the slot toward the tip opening.
  • the magnet wire is wound around the magnetic pole and inserted into the slot in a laminated manner. Further, the width dimension of the magnet wire is arranged so as to be continuously or stepwise reduced from the bottom of the slot toward the tip opening.
  • the coil according to one aspect of the present disclosure is an edgewise coil, and includes a conducting wire and a coating film covering the conducting wire.
  • the conductor includes a bent portion where the conductor is bent.
  • the coating includes a first coating that covers a portion of the conducting wire that is different from the bent portion, and a second coating that covers at least a portion where tension is generated in the bent portion.
  • the coating film has a boundary between the first coating film and the second coating film in a direction intersecting the direction in which the tension is generated.
  • the manufacturing method according to one aspect of the present disclosure is the manufacturing method of the edgewise coil, in which the conductor having the first coating is wound to form the edgewise coil and the conductor is bent. The process of forming the second coating on the bent portion is included.
  • FIG. 4A is a diagram illustrating a planned bending processing portion of the edgewise coil according to the third embodiment.
  • FIG. 4B is a diagram illustrating repair of a bent portion of the edgewise coil of the same as above.
  • FIG. 4C is a diagram illustrating after repairing the bent portion of the edgewise coil of the same as above.
  • FIG. 5A is a side view of a motor using the edgewise coil according to the second modification.
  • FIG. 5B is a top view of a motor using the same edgewise coil.
  • FIG. 6A is a diagram illustrating the same width-fixed edgewise coil.
  • FIG. 6B is a diagram illustrating the same width-variable edgewise coil.
  • Tension T1 is generated in the outer portion of the bent portion 4 according to the bending process.
  • the tension T1 is generated along the conductor 3.
  • a tensile stress is generated in the outer portion of the conducting wire 3, and the first coating film L1 may be lifted or peeled off at the specific portion D1.
  • L2 has an overlapping portion 7 that overlaps with at least a part of the first coating film L1. In the overlapping portion 7, as shown in FIG. 1C, that is, the first coating film L1 and the second coating film L2 overlap each other.
  • the coating film 5 has a boundary B1 between the first coating film L1 and the second coating film L2 in a direction intersecting the direction in which the tension T1 is generated. Therefore, it can be seen that the bent portion 4 is repaired by the second coating film L2.
  • the coating film covering the bent portion 4 may be damaged. Therefore, by repairing the bent portion 4 with the second coating film L2, it is possible to suppress the deterioration of the insulating performance of the coating film 5. Therefore, deterioration of the quality of the coil 1 can be suppressed. Therefore, it is possible to provide the coil 1 in which the portion where the first coating L1 may be damaged is repaired by the second coating L2 which is an insulating coating.
  • the coil (1) according to the first aspect is an edgewise coil (1), which includes a conductor (3), a coating film (5) covering the conductor (3), and a coating (5).
  • the conductor (3) includes a bent portion (4) where the conductor (3) is bent.
  • the coating (5) has a first coating (L1) covering a portion (6) of the conducting wire (3) different from the bent portion (4), and at least tension (T1) is generated at the bent portion (4).
  • the coating film (5) has a boundary (B1, B2, B3) between the first coating film (L1) and the second coating film (L2) in a direction intersecting the direction in which tension is generated.
  • the shape of the bent portion (4) is formed between the first coating (L1) and the second coating (L2). It has a boundary (B4) that is different from the boundary (B1) along the line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
PCT/JP2021/021734 2020-07-01 2021-06-08 コイル、モータ及び製造方法 WO2022004298A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180044730.XA CN115867995A (zh) 2020-07-01 2021-06-08 线圈、电动机以及制造方法
JP2022533780A JPWO2022004298A1 (ko) 2020-07-01 2021-06-08

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020114485 2020-07-01
JP2020-114485 2020-07-01

Publications (1)

Publication Number Publication Date
WO2022004298A1 true WO2022004298A1 (ja) 2022-01-06

Family

ID=79315213

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/021734 WO2022004298A1 (ja) 2020-07-01 2021-06-08 コイル、モータ及び製造方法

Country Status (3)

Country Link
JP (1) JPWO2022004298A1 (ko)
CN (1) CN115867995A (ko)
WO (1) WO2022004298A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024009910A1 (ja) * 2022-07-05 2024-01-11 ダイキン工業株式会社 平角線、コイルおよび熱収縮チューブ
JP7518449B2 (ja) 2022-07-05 2024-07-18 ダイキン工業株式会社 平角線、コイルおよび熱収縮チューブ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172713A (en) * 1981-04-16 1982-10-23 Mitsubishi Electric Corp Manufacture of insulated coil
JP2003272916A (ja) * 2002-03-15 2003-09-26 Totoku Electric Co Ltd 樹脂絶縁被覆エッジワイズコイル、絶縁被覆エッジワイズコイルの製造方法、絶縁被覆平角電線および樹脂絶縁被覆平角電線の製造方法
JP2016076316A (ja) * 2014-10-02 2016-05-12 トヨタ自動車株式会社 絶縁平角導線

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172713A (en) * 1981-04-16 1982-10-23 Mitsubishi Electric Corp Manufacture of insulated coil
JP2003272916A (ja) * 2002-03-15 2003-09-26 Totoku Electric Co Ltd 樹脂絶縁被覆エッジワイズコイル、絶縁被覆エッジワイズコイルの製造方法、絶縁被覆平角電線および樹脂絶縁被覆平角電線の製造方法
JP2016076316A (ja) * 2014-10-02 2016-05-12 トヨタ自動車株式会社 絶縁平角導線

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024009910A1 (ja) * 2022-07-05 2024-01-11 ダイキン工業株式会社 平角線、コイルおよび熱収縮チューブ
JP7518449B2 (ja) 2022-07-05 2024-07-18 ダイキン工業株式会社 平角線、コイルおよび熱収縮チューブ

Also Published As

Publication number Publication date
JPWO2022004298A1 (ko) 2022-01-06
CN115867995A (zh) 2023-03-28

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