WO2021065433A1 - モータ用コイルの製造方法、モータの製造方法およびモータ用コイルの製造装置 - Google Patents

モータ用コイルの製造方法、モータの製造方法およびモータ用コイルの製造装置 Download PDF

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Publication number
WO2021065433A1
WO2021065433A1 PCT/JP2020/034642 JP2020034642W WO2021065433A1 WO 2021065433 A1 WO2021065433 A1 WO 2021065433A1 JP 2020034642 W JP2020034642 W JP 2020034642W WO 2021065433 A1 WO2021065433 A1 WO 2021065433A1
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WO
WIPO (PCT)
Prior art keywords
winding
winding portion
motor
manufacturing
coil
Prior art date
Application number
PCT/JP2020/034642
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
角　茂治
Original Assignee
日本電産株式会社
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 日本電産株式会社 filed Critical 日本電産株式会社
Priority to CN202080068017.4A priority Critical patent/CN114450874B/zh
Priority to JP2020571874A priority patent/JPWO2021065433A1/ja
Publication of WO2021065433A1 publication Critical patent/WO2021065433A1/ja

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • 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
    • H02K3/18—Windings for salient poles

Definitions

  • the method for manufacturing a coil for a motor is included.
  • the motor 1 shown in FIG. 1 is an inner rotor type three-phase motor mounted on a vehicle such as an automobile.
  • the motor 1 includes a housing 2, a rotor 3, a stator 10, a bearing holder 4, a bearing 5a, and a bearing 5b.
  • the housing 2 houses the rotor 3, the stator 10, the bearing holder 4, and the bearings 5a and 5b.
  • the rotor 3 faces the stator 10 in the radial direction through a gap. In this embodiment, the rotor 3 is located inside the stator 10 in the radial direction.
  • the rotor 3 has a shaft 3a and a rotor body 3b.
  • the number of turns of the wire rod 6 in the first winding portion 61, the second winding portion 62, and the third winding portion 63 is the same as each other.
  • the number of windings in each winding portion is 4 times in the embodiment, but is not limited to this, and may be, for example, 2 times, 3 times, or 5 times or more.
  • the number of winding portions formed in the winding step is three in total, that is, the first winding portion 61, the second winding portion 62, and the third winding portion 63 in the present embodiment. It is not limited to, and may be, for example, two or four or more.
  • the plastic deformation step is a step of applying an external force to the wire rod 6 to plastically deform the cross-sectional shape of the wire rod 6 in the first winding portion 61, the second winding portion 62, and the third winding portion 63.
  • the external force applying device 8 is wound around the first winding portion 61, the second winding portion 62, and the third winding portion 63.
  • the external force applying device 8 has a first mold 81 and a second mold 82.
  • the first mold 81 has a first pressing surface 811 that presses the first winding portion 61 from the positive side in the Y-axis direction, and a second pressing surface 812 that presses the second winding portion 62 from the positive side in the Y-axis direction. , Has a third pressing surface 813 that presses the third winding portion 63 from the positive side in the Y-axis direction.
  • the first pressing surface 811 and the second pressing surface 812 and the third pressing surface 813 are inclined surfaces inclined with respect to the X-axis direction, respectively.
  • the second mold 82 has a first pressing surface 821 that presses the first winding portion 61 from the negative side in the Y-axis direction, and a second pressing surface 822 that presses the second winding portion 62 from the negative side in the Y-axis direction. It has a third pressing surface 823 that presses the third winding portion 63 from the negative side in the Y-axis direction.
  • the first pressing surface 821, the second pressing surface 822, and the third pressing surface 823 are inclined surfaces inclined with respect to the X-axis direction, respectively.
  • the insertion step is a step of inserting the first winding portion 61 into the second winding portion 62 and inserting the second winding portion 62 into the third winding portion 63.
  • the first winding portion 61 and the second winding portion 62 are replaced with the third winding portion 63. Bring it closer.
  • the first winding portion 61 is located on the innermost side
  • the third winding portion 63 is located on the outermost side
  • the first winding portion 61 and the third winding portion 63 are arranged.
  • the insertion step when the first winding portion 61 and the second winding portion 62 are brought closer to the third winding portion 63, a rod-shaped auxiliary tool is collectively inserted into each winding portion. This work may be performed. As a result, the insertion process can be performed accurately and quickly.
  • the shaping step is a step of adjusting the overall shape of the wire rod 6 after the insertion step.
  • the shaping device 9 is a device that collectively applies an external force to the first winding portion 61, the second winding portion 62, and the third winding portion 63.
  • the shaping device 9 includes a first mold 91, a second mold 92, a third mold 93, a fourth mold 94, and a guide member 95.
  • a wire rod 6 in a concentric winding state in which a guide member 95 is inserted can be arranged between the first mold 91, the second mold 92, the third mold 93, and the fourth mold 94.
  • the first mold 91, the second mold 92, the third mold 93, and the fourth mold 94 are supported so as to be close to each other and separated from each other with the wire rod 6 as the center.
  • the guide member 95 is composed of a columnar body penetrating the inside of the wire rod 6 in a concentric winding state. As a result, the posture of the wire rod 6 in the shaping device 9 can be maintained, and thus an external force can be stably applied to the wire rod 6.
  • the first mold 91 has a first pressing surface 911 that presses the wire rod 6 in the concentric winding state from the positive side in the X-axis direction.
  • the first pressing surface 911 is a curved surface curved in an arc shape centered on a predetermined point (virtual point) on the negative side in the X-axis direction of the first pressing surface 911.
  • the fourth mold 94 has a fourth pressing surface 941 that presses the wire rod 6 in the concentric winding state from the negative side in the Y-axis direction.
  • the fourth pressing surface 941 is an inclined surface inclined with respect to the X-axis direction. Further, the first pressing surface 911 and the fourth pressing surface 941 face each other in the Y-axis direction, and the separation distance gradually decreases toward the negative side in the X-axis direction.
  • the shaping device 9 is put into a mold clamping state.
  • the wire rod 6 is compressed in the X-axis direction between the first pressing surface 911 and the second pressing surface 921, and is compressed in the Y-axis direction between the third pressing surface 931 and the fourth pressing surface 941. It is compressed.
  • the distance between the wire rods 6 adjacent to each other in the X-axis direction can be further narrowed with respect to the first winding portion 61, and the wire rods 6 can be brought into close contact with each other.
  • the distance between the wire rods 6 adjacent to each other in the X-axis direction can be further narrowed so that the wire rods 6 can be brought into close contact with each other.
  • the distance between the wire rods 6 adjacent to each other in the X-axis direction can be further narrowed so that the wire rods 6 can be brought into close contact with each other.
  • the gap 64 can be eliminated by further narrowing the distance between the first winding portion 61 and the second winding portion 62. As a result, the first winding portion 61 and the second winding portion 62 can be brought into close contact with each other.
  • the gap 65 can be eliminated by further narrowing the distance between the second winding portion 62 and the third winding portion 63.
  • the second winding portion 62 and the third winding portion 63 can be brought into close contact with each other.
  • the wire rod 6 can be further plastically deformed according to the compression direction.
  • the wire rod 6 is in a state in which the overall shape shown in FIG. 17 is arranged (hereinafter referred to as "shaping state").
  • the shaping device 9 is set to the mold opening state again, and the wire rod 6 is released from the shaping device 9.
  • the wire rod 6 in the shaped state can be taken out as it is.
  • the wire rod 6 is used as the coil 30.
  • the coil 30 is in a shaped state, and is wound in a tightly wound state in which adjacent wire rods 6 are in close contact with each other. This makes it possible to increase the output of the motor 1. Further, since there is no gap between adjacent wire rods 6, the motor 1 can be miniaturized, and for example, when the motor 1 is installed and used in an automobile, it becomes easy to secure an installation space for the motor 1. In addition, the small motor 1 can reduce power consumption, and thus can save power. Further, the coil 30 in the shaped state can be quickly obtained by a simple manufacturing method of sequentially going through a winding step, a plastic deformation step, an insertion step, and a shaping step. As a result, the manufacturing cost of the motor 1 can be suppressed, that is, the cost can be reduced.
  • the present invention is not limited thereto.
  • Each part constituting the motor coil manufacturing apparatus can be replaced with an arbitrary configuration capable of exhibiting the same function. Further, any component may be added. Further, the method for manufacturing a coil for a motor, the method for manufacturing a motor, and the apparatus for manufacturing a coil for a motor of the present invention may be a combination of any two or more configurations (features) in each of the above embodiments. Good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
PCT/JP2020/034642 2019-09-30 2020-09-14 モータ用コイルの製造方法、モータの製造方法およびモータ用コイルの製造装置 WO2021065433A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080068017.4A CN114450874B (zh) 2019-09-30 2020-09-14 马达用线圈制造方法、马达制造方法及马达用线圈制造装置
JP2020571874A JPWO2021065433A1 (zh) 2019-09-30 2020-09-14

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-178533 2019-09-30
JP2019178533 2019-09-30

Publications (1)

Publication Number Publication Date
WO2021065433A1 true WO2021065433A1 (ja) 2021-04-08

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PCT/JP2020/034642 WO2021065433A1 (ja) 2019-09-30 2020-09-14 モータ用コイルの製造方法、モータの製造方法およびモータ用コイルの製造装置

Country Status (3)

Country Link
JP (1) JPWO2021065433A1 (zh)
CN (1) CN114450874B (zh)
WO (1) WO2021065433A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022127861A1 (de) 2022-04-25 2023-10-26 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Herstellung einer Spulenwicklung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746653A (en) * 1980-08-18 1982-03-17 Yakourebitsuchi Fuerudo Isaaku Method of producing coil group for electric machine, stepwise frame for producing same as well as device for producing same
JP2004180396A (ja) * 2002-11-26 2004-06-24 Mosutetsuku:Kk コイル、線材、線材の製造方法、線材の製造装置
WO2011155061A1 (ja) * 2010-06-11 2011-12-15 トヨタ自動車株式会社 ステータ及びそれに使用される単位コイルの製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005204422A (ja) * 2004-01-16 2005-07-28 Toyota Motor Corp コイルの製造方法
JP2007267463A (ja) * 2006-03-28 2007-10-11 Hitachi Ltd 回転電機及び回転電機の製造方法
JP5901846B2 (ja) * 2013-04-26 2016-04-13 三菱電機株式会社 電機子コイル及びその製造方法
WO2019064712A1 (ja) * 2017-09-28 2019-04-04 日本電産株式会社 コイルの製造方法、コイルの製造装置、コイルおよびモータ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746653A (en) * 1980-08-18 1982-03-17 Yakourebitsuchi Fuerudo Isaaku Method of producing coil group for electric machine, stepwise frame for producing same as well as device for producing same
JP2004180396A (ja) * 2002-11-26 2004-06-24 Mosutetsuku:Kk コイル、線材、線材の製造方法、線材の製造装置
WO2011155061A1 (ja) * 2010-06-11 2011-12-15 トヨタ自動車株式会社 ステータ及びそれに使用される単位コイルの製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022127861A1 (de) 2022-04-25 2023-10-26 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Herstellung einer Spulenwicklung

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JPWO2021065433A1 (zh) 2021-04-08
CN114450874B (zh) 2024-07-16
CN114450874A (zh) 2022-05-06

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