JP3386660B2 - Method of manufacturing split type stator for rotating electric machine - Google Patents

Method of manufacturing split type stator for rotating electric machine

Info

Publication number
JP3386660B2
JP3386660B2 JP13993196A JP13993196A JP3386660B2 JP 3386660 B2 JP3386660 B2 JP 3386660B2 JP 13993196 A JP13993196 A JP 13993196A JP 13993196 A JP13993196 A JP 13993196A JP 3386660 B2 JP3386660 B2 JP 3386660B2
Authority
JP
Japan
Prior art keywords
stator
unit
electric machine
core
jig
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.)
Expired - Fee Related
Application number
JP13993196A
Other languages
Japanese (ja)
Other versions
JPH09322493A (en
Inventor
邦寿 栗原
周吉 小松
桂三 渡辺
正寛 小山
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.)
Sanyo Denki Co Ltd
Original Assignee
Sanyo Denki 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 Sanyo Denki Co Ltd filed Critical Sanyo Denki Co Ltd
Priority to JP13993196A priority Critical patent/JP3386660B2/en
Publication of JPH09322493A publication Critical patent/JPH09322493A/en
Application granted granted Critical
Publication of JP3386660B2 publication Critical patent/JP3386660B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、複数のステータ分
割子で回転電機用分割型ステータ本体が構成されている
回転電機用分割型ステータの製造方法に関するものであ
る。 【0002】 【従来の技術】従来のこの種の回転電機用分割型ステー
タは、図4に示すように、ステータコアの環状継鉄部の
一部を構成する継鉄部分1aと巻線巻回部分1bとを有
する単位コア1の巻線巻回部分1bに単位巻線2をボビ
ン3を介して巻回してなる複数のステータ分割子4が環
状に並べられて回転電機用分割型ステータ本体5が構成
され、各単位コア1の継鉄部分1aがレーザ溶接,抗張
力繊維の巻回,樹脂のモールド等の連結手段で連結され
て一体化されて回転電機用分割型ステータが形成されて
いた。この場合、従来の回転電機用分割型ステータで
は、図示のように隣接する継鉄部分1aは、一方の継鉄
部分1aの円弧方向の端面に設けられた凹部6aと他方
の継鉄部分1aの円弧方向の端面に設けられた凸部6b
との嵌め合わせで形成された継鉄位置決め部6により、
隣接する単位コア1の突き合わせ部分の位置決めがなさ
れていた。 【0003】 【発明が解決しようとする課題】しかしながら、このよ
うに複数のステータ分割子4を環状に並べて構成し
転電機用分割型ステータでは、各単位コア1の巻線巻回
部分1bの先端における円弧状極面1dがなす円形の内
周面の真円度が悪く、各円弧状極面1dとロータマグネ
ットとの間隔が周方向の位置によって異なり、コッギン
グ(Cogging,回転むら)が発生し、特に低速回
転をスムーズに行えない問題点がある。 【0004】本発明の目的は、分割型ステータでもコッ
ギングを低減できる回転電機用分割型ステータの製造方
法を提供することにある。 【0005】本発明の他の目的は、分割型ステータでも
コッギングを低減でき、しかもステータコアの機械的強
度を向上できる回転電機用分割型ステータの製造方法を
提供することにある。 【0006】本発明の他の目的は、各単位コアの巻線巻
回部分の先端における円弧状極面がなす円形の内周面の
真円度を容易に向上させることができる回転電機用分割
型ステータ製造用ステータ位置決め治具を提供すること
にある。 【0007】 【課題を解決するための手段】本発明の回転電機用分割
型ステータの製造方法においては、ステータコアの環状
継鉄部の一部を構成する継鉄部分と巻線巻回部分とを有
する単位コアの巻線巻回部分に単位巻線を巻回してなる
複数のステータ分割子を、各単位コアの継鉄部分におけ
る円弧方向の端部を相互に突き合わせた状態で環状に並
べて回転電機用分割型ステータ本体を構成して回転電機
用分割型ステータを製造するに際し、環状の治具フレー
ムの内周に各単位コアに対応して加圧滑動子の一部を突
出させた構造の縮径治具を、ステータ位置決め治具の台
座部上に配置した回転電機用分割型ステータ本体におけ
る単位コアの環状列の外周に嵌めて、該台座部上の内径
基準心金の外周に、各単位コアの巻線巻回部分における
円弧状極面を突き当て且つ各単位コアの継鉄部分におけ
る両端部を隣の継鉄部分の端部に突き合わせた状態にし
回転電機用分割型ステータ本体を縮径し、縮径された
回転電機用分割型ステータ本体の各単位コアの環状列の
外周に予熱された環状フレームを焼き嵌めして各単位コ
アの継鉄部分を連結することを特徴とする。 【0008】このように単位コアを用いた回転電機用分
割型ステータ本体をステータ位置決め治具の台座部上
で、縮径治具を単位コアの環状列の外周に嵌めて、該台
座部上の内径基準心金の外周に各単位コアの巻線巻回部
分における円弧状極面を突き当て且つ各単位コアの継鉄
部分における両端部を隣の継鉄部分の端部に突き合わせ
た状態で回転電機用分割型ステータ本体を縮径するの
、縮径作業と各単位コアの巻線巻回部分の先端におけ
る円弧状極面がなす円形内周面の真円度を向上させる作
業とを共に容易に行うことができる。 【0009】また、縮径治具は、単位コアの環状列の外
周で滑動する各加圧滑動子を備えた構造なので、構造が
簡単で、軽量に構成できて取扱が容易となると共に、治
具フレームに加える共通の押圧で各加圧滑動子が対応す
る各単位コアを求心方向にそれぞれ押圧するので、回転
電機用分割型ステータ本体の縮径移動を容易に行わせる
ことができる 【0010】 【発明の実施の形態】図1及び図2は、本発明に係る回
転電機用分割型ステータの製造方法における実施の形態
の一例を示したものである。 【0011】本例の回転電機用分割型ステータは、回転
電機用分割型ステータ本体5の外周に環状フレーム7を
焼き嵌めした構造になっている。 【0012】この際に用いる本例の回転電機用分割型ス
テータ本体5は、ステータコアの環状継鉄部の一部を構
成する継鉄部分1aと巻線巻回部分1bとを有し且つ継
鉄部分1bにおける円弧方向の両端部が平坦面1cとな
っている単位コア1を用い、これら単位コア1の巻線巻
回部分1bに単位巻線2を巻回してなる複数のステータ
分割子4が、各単位コア1の継鉄部分1aにおける円弧
方向の両端の平坦面1cを突き合わせた状態で、環状に
並べられて構成されている。各単位巻線2は、相毎にシ
リーズに結線されるか、相毎に連続して巻装されてい
る。また、単位コア1の継鉄部分1aの中央には、後述
する単位コア周方向位置決め手段8のステータ位置決め
ピン8bを挿入するステータ位置決め孔8aがそれぞれ
設けられている。 【0013】環状フレーム7には、その中心に単位コア
1の環状列1Aの外周を嵌合させるためのステータ本体
嵌合孔9が設けられ、また外縁部寄りの位置には90°間
隔で取付け孔10があけられている。 【0014】本例では、前述した回転電機用分割型ステ
ータ本体5を位置決めするためにステータ位置決め治具
11を用いる。該ステータ位置決め治具11は、ベース
盤部11a上にスタンド部11bが立設され、該スタン
ド部11bの頂部に円形の台座部11cが水平に取り付
けられた構造になっている。この場合、台座部11cの
外径は、単位コア1の環状列1Aの外径以下に設定する
ことが好ましい。 【0015】ステータ位置決め治具11の台座部11c
上には、単位コア周方向位置決め手段8を構成する複数
のステータ位置決めピン8bが周方向に所定の間隔で上
向きに突設されている。これらステータ位置決めピン8
bは、回転電機用分割型ステータ本体5の各単位コア1
におけるステータ位置決め孔8aの間隔に合わせて台座
部11cの周縁に沿って上向きに突設されている。本例
では、単位コア1のステータ位置決め孔8aにステータ
位置決めピン8bを嵌めて、単位コア1を台座部11c
上に周方向に位置決めする際に、単位巻線1の厚み分だ
けこの単位コア1を台座部11cから浮かせるように、
各ステータ位置決めピン8bはそれぞれ台座部11cか
ら立ち上がる支え台部8cの上端に突設されている。こ
れらステータ位置決め孔8aの内径とステータ位置決め
ピン8bの外径とは、単位コア1の環状列1Aの縮径を
可能とするように該単位コア1の求心方向の縮径移動が
可能なように定められている。本例では、ステータ位置
決め孔8aの大きさに対するステータ位置決めピン8b
の太さを相対的に細くして、単位コア1の求心方向の縮
径移動を可能にしている。なお、この代わりに、ステー
タ位置決め孔8aを縮径方向の長孔として形成すること
もできる。 【0016】ステータ位置決め治具11の台座部11c
上の中央には、更に単位コア内径方向位置決め手段とし
て円柱状の内径基準心金12が突設されている。該内径
基準心金12の外径は、位置決めすべき各単位コア1の
巻線巻回部分1bの先端における円弧状極面1dがなす
円形内周面の好ましい内径に設定されている。この内径
基準心金12の外周に対して各ステータ位置決めピン8
bの列がなす円は同心状にも設けられている。 【0017】また本例では、回転電機用分割型ステータ
本体5における単位コア1の環状列1Aを縮径するため
の縮径手段として縮径治具13を用いる。該縮径治具1
3は、環状の治具フレーム14の内周に各単位コア1に
対応して加圧滑動子15の一部を突出させた構造になっ
ている。本例では、加圧滑動子15としてローラベアリ
ングが用いられ、その回転自在なローラ15aの一部を
治具フレーム14の内周に突出させて該治具フレーム1
4に組み付けられている。ローラ15aは、治具フレー
ム14の中心孔14aの貫通方向に回転するように取り
付けられている。加圧滑動子15としては、ローラベア
リングの代わりにボールベアリングを用いることができ
る。治具フレーム14の中心孔14aの内径は、回転電
機用分割型ステータ本体5における単位コア1の環状列
1Aの外径より若干大きく形成されている。治具フレー
ム14の内周からローラ15aの突出長さは、単位コア
1の環状列1Aを縮径する寸法にほぼ設定されている。 【0018】なお、本例の場合、単位コア周方向位置決
め手段8の支え台部8cは、台座部11cの周縁に環状
に設けることもできる。 【0019】次に、これら図1及び図2を参照して本例
の回転電機用分割型ステータの製造方法について説明す
る。 【0020】まず、回転電機用分割型ステータ本体5を
単位コア周方向位置決め手段8を用いてステータ位置決
め治具11の台座部11c上の周方向に位置決めする。
台座部11cに対する回転電機用分割型ステータ本体5
の周方向の位置決めは、各単位コア1にそれぞれ設けら
れているステータ位置決め孔8aを対応するステータ位
置決めピン8bに嵌め、各単位コア1を支え台部8cで
支えることにより行う。このようにステータ位置決め孔
8aとステータ位置決めピン8bとを用いて各単位コア
1の位置決めを行うと、各単位コア1を容易に且つ相互
間が分離されないように台座部11c上にその周方向に
沿って位置決めすることができる。 【0021】次に、縮径治具13を回転電機用分割型ス
テータ本体5の単位コア1の環状列1Aの外周に嵌合し
て該回転電機用分割型ステータ本体5を縮径する。この
縮径治具13による回転電機用分割型ステータ本体5の
縮径は、該縮径治具13における治具フレーム14を単
位コア1の環状列1Aの外周に嵌めて該単位コア1の環
状列1Aの軸心方向に加圧移動させることにより行う。
治具フレーム14を単位コア1の環状列1Aの外周に嵌
めて該単位コア1の環状列1Aの軸心方向に加圧移動さ
せると、該治具フレーム14の内周に一部が突設されて
いる各ローラ15aが治具フレーム14の移動につれて
回転しつつ各単位コア1を求心方向に押圧し、これによ
り単位コア1の環状列1A即ち回転電機用分割型ステー
タ本体5が縮径されることになる。 【0022】このような各単位コア1の縮径移動で、各
単位コア1の巻線巻回部分1bにおける円弧状極面1d
がそれぞれ単位コア内径方向位置決め手段としての内径
基準心金12の外周に突き当てられて内径方向の位置決
めがなされると共に各単位コア1の継鉄部分1aにおけ
る両端部の平坦面1cが隣の継鉄部分1aの平坦面1c
に突き合わされる。このように各単位コア1の巻線巻回
部分1bにおける円弧状極面1dがそれぞれ単位コア内
径方向位置決め手段としての内径基準心金12の外周に
突き当てられると、各単位コア1の巻線巻回部分1bの
先端における円弧状極面1dがなす円形内周面の真円度
を容易に向上させることができる。 【0023】上記のように縮径治具13で各単位コア1
を求心方向に押圧しても、本例では、ステータ位置決め
孔8aの大きさに対するステータ位置決めピン8bの太
さを相対的に細くしているので、ステータ位置決め孔8
aとステータ位置決めピン8bとからなるステータ位置
決め手段8を用いていても単位コア1の環状列1Aを支
障なく縮径移動させることができる。 【0024】このような縮径治具13における治具フレ
ーム14の移動は、該縮径治具13の治具フレーム14
の上に環状フレーム7を最初から重ねておいて該環状フ
レーム7を図示しない押圧手段で押圧することにより行
うことが好ましい。即ち、環状フレーム7により縮径治
具13の治具フレーム14を押圧すると、該治具フレー
ム14の移動につれて単位コア1の環状列1Aが縮径さ
れつつ環状フレーム7が該単位コア1の環状列1Aの外
周に逐次嵌められることになる。この状態で作業を進め
ると、縮径治具13で単位コア1の環状列1Aを縮径し
つつ環状フレーム7を嵌めることができる。また、環状
フレーム7を単位コア1の環状列1Aに嵌め終える段階
では、該環状フレーム7の移動で縮径治具13を押圧し
て該単位コア1の環状列1Aから拔去することができ
る。 【0025】なお、単位コア1の環状列1Aの外周に先
に縮径治具13を嵌めて該単位コア1の環状列1Aの軸
心方向の下半部側において該単位コア1の環状列1Aを
縮径しておき、かかる状態で環状フレーム7を該単位コ
ア1の環状列1Aに嵌めることもできる。この場合も、
環状フレーム7を単位コア1の環状列1Aに嵌め終える
段階では、該環状フレーム7の移動で縮径治具13を押
圧して該単位コア1の環状列1Aから拔去することがで
きる。 【0026】また、単位コア1の環状列1Aからの縮径
治具13の拔去は、該縮径治具13を別の牽引手段で牽
引して行うこともできる。 【0027】特に、加圧滑動子15としてローラベアリ
ングまたはボールベアリングを用い、そのローラまたは
ボールの一部を治具フレームの内周に突出させると、こ
れらローラまたはボールの一部で各単位コア1を求心方
向に押圧して該単位コア1の環状列1Aを容易に縮径し
つつ縮径治具13を容易に単位コア1の環状列1Aの外
周に滑動させて嵌めることができる。 【0028】また、この場合、ステータ位置決め治具1
1の台座部11cの外径を単位コア1の環状列1Aの外
径以下に設定すると、押圧移動される縮径治具13が該
台座部11cを容易に通り抜けられるようになり、その
拔去を容易に行うことができる。 【0029】また、各単位コア1のステータ位置決め孔
8aにステータ位置決めピン8bをそれぞれ嵌めて位置
決めしても、ステータ位置決めピン8bとステータ位置
決め孔8aとは単位コア1の環状列1Aの縮径を可能と
するように単位コア1の求心方向の縮径移動が可能に形
成されているので、単位コア1の環状列1Aの縮径を支
障なく行わせることができる。 【0030】図3は、本発明で用いるステータ位置決め
治具11の他の例を示したものである。本例のステータ
位置決め治具11においては、単位コア周方向位置決め
手段8として、ステータ位置決め治具11の台座部11
c上にその周方向に所定の間隔で設けられて各単位コア
1の主として継鉄部分1aを吸着する複数のステータ位
置決めマグネット8dが設けられている。この場合、各
ステータ位置決めマグネット8dは、その上面と台座部
11cの外周側上面とが一致するように該台座部11c
内に組み込まれ、且つ該台座部11cの中央側には単位
巻線2の厚み分だけ該単位コア1の内向き端部側を浮か
せるように凹部11dが設けられている。各ステータ位
置決めマグネット8dの間隔は、各単位コア1の継鉄部
分1aの中央部に対応するように定められている。台座
部11cの凹部11d中央には、単位コア内径方向位置
決め手段としての円柱状の内径基準心金12が突設され
ている。 【0031】このように単位コア周方向位置決め手段8
を、ステータ位置決め治具11の台座部11c上にその
周方向に所定の間隔で設けて各単位コア1を吸着する複
数のステータ位置決めマグネット8dで構成すると、各
単位コア1の位置決めは単に該単位コア1をステータ位
置決めマグネット8dに吸着させるだけでよく、非常に
簡単に回転電機用分割型ステータ本体5の位置決めを行
うことができる。また、単位コア1をステータ位置決め
マグネット8dで位置決めすると、単位コア1の求心方
向の縮径移動を支障なく行わせることができ、単位コア
1の環状列1Aの縮径を支障なく行わせることができ
る。この場合、各ステータ位置決めマグネット8dを、
その上面と台座部11cの上面とが一致するように該台
座部11c内に組み込むと、縮径移動時に各単位コア1
を台座部11c上でスムーズに移動させることができ
る。 【0032】なお、縮径治具13の加圧滑動子15とし
ては、例えばテトラフロロエチレンの楔状体や、先端面
を平滑化した金属の楔状体を用いて、該楔状体の多数個
を治具フレーム14の内周に、該治具フレーム14の入
口側の高さが低く、出口側の高さが高くなるように楔状
に突設させることもできる。 【0033】図1及び図3に示した例では、ステータ位
置決め治具11の単位コア内径方向位置決め手段として
の内径基準心金12が円柱状の場合について示したが、
該内径基準心金12の形状はこれに限定されるものでは
なく、例えば環状であってもよい。 【0034】また、上記例では、各単位コア1の継鉄部
分1aの連結は、環状フレーム7による連結が好ましい
が、その他に、溶接で行ってもよく、繊維等の結束具で
行ってもよく、或いは樹脂のモールド等で行ってもよ
い。 【0035】更に、上記例では各単位コア1の継鉄部分
1aの両端部が平坦面1cの場合に本発明を適用した例
について説明したが、本発明はこれに限定されるもので
はなく、図4に示すように、継鉄部分1aの円弧方向の
端面を隣の継鉄部分1aの円弧方向の端面と凹部6aと
凸部6bとで嵌め合わせるタイプの単位コア1を用いる
分割型ステータの製造方法にも同様にして適用すること
ができる。 【0036】以上説明した複数の発明のうち、いくつか
の発明についてその構成要件を示すと、次の通りであ
る。 【0037】(1)ステータコアの環状継鉄部の一部を
構成する継鉄部分と巻線巻回部分とを有する単位コアの
前記巻線巻回部分に単位巻線を巻回してなる複数のステ
ータ分割子を環状に位置決めする回転電機用分割型ステ
ータ製造用ステータ位置決め治具において、前記各ステ
ータ分割子を環状に並べる台座部上の周縁側にはこれら
ステータ分割子の単位コアの周方向の位置決めを行う単
位コア周方向位置決め手段が環状に設けられ、前記台座
部上の中央側には前記各単位コアの巻線巻回部分の先端
における円弧状極面を突き当てて内径方向の位置決めを
行う単位コア内径方向位置決め手段としての内径基準心
金が前記単位コア周方向位置決め手段に対して同心配置
で突設された構造になっていることを特徴とする回転電
機用分割型ステータ製造用ステータ位置決め治具。 【0038】(2)前記単位コア周方向位置決め手段
は、前記単位巻線の厚み分だけ前記単位コアを浮かす支
え台部を介して突設されて前記各単位コアのステータ位
置決め孔に通されるステータ位置決めピンにより構成さ
れていることを特徴とする第(1)項に記載の回転電機
用分割型ステータ製造用ステータ位置決め治具。 【0039】(3)前記単位コア周方向位置決め手段
は、前記単位巻線の厚み分だけ前記単位コアを浮かす高
さで前記台座部の外周側に前記各単位コアに対応して固
設されたステータ位置決めマグネットにより構成されて
いることを特徴とする第(1)項に記載の回転電機用分
割型ステータ製造用ステータ位置決め治具。 【0040】 【発明の効果】本発明の回転電機用分割型ステータの製
造方法においては、単位コアを用いた回転電機用分割型
ステータ本体をステータ位置決め治具の台座部上で、縮
径治具を単位コアの環状列の外周に嵌めて、該台座部上
の内径基準心金の外周に各単位コアの巻線巻回部分にお
ける円弧状極面を突き当て且つ各単位コアの継鉄部分に
おける両端部を隣の継鉄部分の端部に突き合わせた状態
にするので、縮径作業と各単位コアの巻線巻回部分の先
端における円弧状極面がなす円形内周面の真円度を容易
に向上させる作業とを容易に行うことができる。 【0041】また、縮径治具は、単位コアの環状列の外
周で滑動する各加圧滑動子を備えた構造なので、構造が
簡単で、軽量に構成できて取扱が容易となると共に、治
具フレームに加える共通の押圧で各加圧滑動子が対応す
る各単位コアを求心方向にそれぞれ押圧するので、回転
電機用分割型ステータ本体の縮径移動を容易に行わせる
ことができる
BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The present invention is in the manufacture how the rotary electric machine split stator split stator body for rotary electric machine by a plurality of stator-divider is configured It is about. 2. Description of the Prior Art As shown in FIG. 4, a conventional split type stator for a rotating electric machine of this type includes a yoke portion 1a and a winding winding portion which constitute a part of an annular yoke portion of a stator core. A plurality of stator splitters 4 each formed by winding a unit winding 2 via a bobbin 3 around a winding winding portion 1b of a unit core 1 having a stator core 1b are provided. The yoke portion 1a of each unit core 1 is connected and integrated by connecting means such as laser welding, winding of tensile strength fiber, and resin molding to form a split type stator for a rotating electric machine. In this case, in the conventional split type stator for a rotating electrical machine, as shown in the drawing, the adjacent yoke portion 1a is formed by the concave portion 6a provided on the end face in the arc direction of one yoke portion 1a and the other yoke portion 1a. Convex portion 6b provided on end face in arc direction
With the yoke positioning part 6 formed by fitting with
The positioning of the butted portion of the adjacent unit cores 1 has been performed. [0003] However, in a split type stator for a rotating electric machine in which a plurality of stator splitters 4 are arranged in a ring as described above, the windings of each unit core 1 are formed. The circular inner peripheral surface formed by the arcuate polar surface 1d at the tip of the winding portion 1b has poor roundness, and the distance between each arcuate polar surface 1d and the rotor magnet differs depending on the circumferential position, and cogging (Cogging, Rotation unevenness), and there is a problem that low-speed rotation cannot be performed particularly smoothly. An object of the present invention is to provide a method of manufacturing a split stator for a rotating electric machine that can reduce cogging even in a split stator. Another object of the present invention is to provide a method of manufacturing a split type stator for a rotating electrical machine which can reduce cogging even in a split type stator and can improve the mechanical strength of a stator core. Another object of the present invention is to provide a rotary electric machine splitter which can easily improve the roundness of a circular inner peripheral surface formed by an arcuate polar surface at the end of a winding winding portion of each unit core. An object of the present invention is to provide a stator positioning jig for manufacturing a mold stator. In a method of manufacturing a split type stator for a rotating electric machine according to the present invention, a yoke portion and a winding winding portion forming a part of an annular yoke portion of a stator core are formed. A plurality of stator splitters each formed by winding a unit winding around a winding part of a unit core having the unit cores are arranged in an annular shape with their ends in the arc direction of the yoke part of each unit core facing each other. When manufacturing a split type stator for a rotating electric machine by forming a split type stator main body, a structure in which a part of the pressure slider protrudes from the inner periphery of an annular jig frame corresponding to each unit core. The diameter jig is fitted on the outer circumference of the annular row of unit cores in the rotary electric machine split type stator body arranged on the pedestal portion of the stator positioning jig, and each unit is mounted on the outer circumference of the inner diameter reference core on the pedestal portion. Circular arc in winding part of core The split stator body for the rotating electric machine was reduced in diameter in a state where the pole faces were abutted and both ends of the yoke portion of each unit core were abutted against the ends of the adjacent yoke portion, and the diameter was reduced.
The preheated annular frame is shrink-fitted to the outer periphery of the annular row of each unit core of the split stator body for a rotating electric machine, and the yoke portion of each unit core is connected. As described above, the split stator body for the rotating electric machine using the unit core is fitted on the pedestal portion of the stator positioning jig, and the diameter reducing jig is fitted on the outer periphery of the annular row of unit cores. The arc-shaped polar surface of the winding part of each unit core is abutted against the outer circumference of the inner diameter reference core, and the unit core is rotated in a state where both ends of the yoke part of the unit core abut the ends of the adjacent yoke part. To reduce the diameter of the split stator body for electrical machinery
In, it is possible to perform the work to improve the roundness of the circular inner peripheral surface formed by arcuate pole face at the tip of the wire winding part of the reduced-diameter work and the unit cores together easily. Further, since the diameter reducing jig has a structure provided with the respective pressure slides which slide on the outer circumference of the annular row of the unit cores, the structure is simple, the structure can be reduced in weight, and the handling is easy. each pressurized圧滑Doko a common pressing presses each respective unit cores corresponding to centripetal direction applied to the jig frame, rotating
The diameter-reducing movement of the split stator body for electric machine can be easily performed . FIG. 1 and FIG. 2 show an example of an embodiment of a method of manufacturing a split type stator for a rotating electric machine according to the present invention. The split stator for a rotating electric machine of the present embodiment has a structure in which an annular frame 7 is shrink-fitted on the outer periphery of a stator body 5 for a rotating electric machine. The split stator body 5 for a rotating electric machine of this embodiment used at this time has a yoke portion 1a and a winding winding portion 1b constituting a part of an annular yoke portion of the stator core. A plurality of stator splitters 4 formed by winding unit windings 2 around unit windings 1b of the unit core 1 using unit cores 1 having both ends in the arc direction of the portion 1b in the arc direction are flat surfaces 1c. Each of the unit cores 1 is arranged in an annular shape with the flat surfaces 1c at both ends in the arc direction of the yoke portion 1a of the unit core 1 facing each other. Each unit winding 2 is connected in series for each phase or wound continuously for each phase. In the center of the yoke portion 1a of the unit core 1, there are provided stator positioning holes 8a for inserting stator positioning pins 8b of the unit core circumferential direction positioning means 8, which will be described later. The annular frame 7 is provided at its center with a stator main body fitting hole 9 for fitting the outer periphery of the annular row 1A of the unit cores 1 and is mounted at 90 ° intervals near the outer edge. A hole 10 has been drilled. In the present embodiment, a stator positioning jig 11 is used to position the split stator body 5 for a rotating electric machine. The stator positioning jig 11 has a structure in which a stand 11b is erected on a base board 11a, and a circular pedestal 11c is horizontally mounted on the top of the stand 11b. In this case, the outer diameter of the pedestal portion 11c is preferably set to be equal to or less than the outer diameter of the annular row 1A of the unit cores 1. Base 11c of stator positioning jig 11
Above, a plurality of stator positioning pins 8b constituting the unit core circumferential direction positioning means 8 project upward at predetermined intervals in the circumferential direction. These stator positioning pins 8
b denotes each unit core 1 of the split stator body 5 for the rotating electric machine.
And projecting upward along the periphery of the pedestal portion 11c in accordance with the interval between the stator positioning holes 8a. In this example, a stator positioning pin 8b is fitted into a stator positioning hole 8a of the unit core 1, and the unit core 1 is attached to the base 11c.
When positioning the unit core 1 upward in the circumferential direction, the unit core 1 is lifted from the pedestal 11 c by the thickness of the unit winding 1.
Each stator positioning pin 8b protrudes from the upper end of the support base 8c rising from the base 11c. The inner diameter of the stator positioning hole 8a and the outer diameter of the stator positioning pin 8b are set such that the unit core 1 can be reduced in the centripetal direction so that the annular row 1A of the unit core 1 can be reduced. Stipulated. In the present example, the stator positioning pins 8b with respect to the size of the stator positioning holes 8a
Are relatively thin, so that the unit core 1 can be reduced in diameter in the centripetal direction. Instead of this, the stator positioning hole 8a may be formed as a long hole in the diameter decreasing direction. Base 11c of stator positioning jig 11
At the upper center, a cylindrical inner diameter reference mandrel 12 is further protruded as a unit core inner diameter direction positioning means. The outer diameter of the inner diameter reference core 12 is set to a preferable inner diameter of a circular inner peripheral surface formed by the arcuate polar surface 1d at the tip of the winding portion 1b of each unit core 1 to be positioned. With respect to the outer periphery of the inner diameter reference core 12, each stator positioning pin 8
The circles formed by the rows b are provided concentrically. In this embodiment, a diameter reducing jig 13 is used as a diameter reducing means for reducing the diameter of the annular row 1A of the unit cores 1 in the split stator body 5 for a rotating electric machine. The diameter reducing jig 1
Reference numeral 3 denotes a structure in which a part of the pressure slider 15 is protruded from the inner periphery of the annular jig frame 14 corresponding to each unit core 1. In this example, a roller bearing is used as the pressure slider 15, and a part of the rotatable roller 15 a is protruded to the inner periphery of the jig frame 14 so that the jig frame 1 can be used.
4 is assembled. The roller 15a is attached so as to rotate in a direction in which the center hole 14a of the jig frame 14 penetrates. As the pressure slider 15, a ball bearing can be used instead of a roller bearing. The inner diameter of the center hole 14 a of the jig frame 14 is formed to be slightly larger than the outer diameter of the annular row 1 </ b> A of the unit cores 1 in the split stator body 5 for a rotating electric machine. The protruding length of the roller 15a from the inner periphery of the jig frame 14 is set substantially to a dimension that reduces the diameter of the annular row 1A of the unit cores 1. In the case of the present example, the support base 8c of the unit core circumferential direction positioning means 8 may be provided annularly on the periphery of the base 11c. Next, a method of manufacturing the split type stator for a rotating electric machine according to the present embodiment will be described with reference to FIGS. First, the split type stator main body 5 for the rotating electric machine is positioned in the circumferential direction on the pedestal portion 11c of the stator positioning jig 11 using the unit core circumferential direction positioning means 8.
Split type stator body 5 for rotating electric machine with respect to pedestal portion 11c
Positioning in the circumferential direction is performed by fitting stator positioning holes 8a provided in each unit core 1 to corresponding stator positioning pins 8b, and supporting each unit core 1 by a support base 8c. When the unit cores 1 are positioned using the stator positioning holes 8a and the stator positioning pins 8b in this manner, the unit cores 1 are easily placed on the pedestal portion 11c in the circumferential direction so that they are not separated from each other. Along. Next, the diameter reducing jig 13 is fitted to the outer periphery of the annular row 1A of the unit core 1 of the divided stator body 5 for the rotating electric machine to reduce the diameter of the divided stator body 5 for the rotating electric machine. The diameter reduction of the split type stator main body 5 for the rotating electric machine by the diameter reducing jig 13 is performed by fitting the jig frame 14 of the diameter reducing jig 13 to the outer periphery of the annular row 1A of the unit cores 1. This is performed by pressing and moving in the axial direction of the row 1A.
When the jig frame 14 is fitted to the outer periphery of the annular row 1A of the unit cores 1 and is pressed and moved in the axial direction of the annular row 1A of the unit cores 1, a part of the jig frame 14 protrudes from the inner periphery of the jig frame 14. Each roller 15a rotates as the jig frame 14 moves and presses each unit core 1 in a centripetal direction, whereby the annular row 1A of the unit cores 1, that is, the split type stator body 5 for the rotating electric machine is reduced in diameter. Will be. With such a diameter reduction movement of each unit core 1, an arc-shaped pole surface 1 d in a winding winding portion 1 b of each unit core 1 is formed.
Are abutted against the outer circumference of the inner diameter reference mandrel 12 as the unit core inner diameter direction positioning means to perform positioning in the inner diameter direction, and the flat surfaces 1c at both ends of the yoke portion 1a of each unit core 1 are connected to the adjacent joints. Flat surface 1c of iron part 1a
Is matched to. As described above, when the arc-shaped polar surface 1d of the winding winding portion 1b of each unit core 1 is abutted on the outer periphery of the inner diameter reference core 12 as the unit core inner diameter direction positioning means, the winding of each unit core 1 is made. The roundness of the circular inner peripheral surface formed by the arcuate polar surface 1d at the tip of the winding portion 1b can be easily improved. As described above, each unit core 1 is
Is pressed in the centripetal direction, in this example, the thickness of the stator positioning pin 8b is relatively small with respect to the size of the stator positioning hole 8a.
The diameter of the annular row 1A of the unit cores 1 can be reduced without any trouble even if the stator positioning means 8 including the stator positioning pins 8a and the stator positioning pins 8b is used. The movement of the jig frame 14 of the diameter reducing jig 13 is performed by moving the jig frame 14 of the diameter reducing jig 13.
It is preferable that the annular frame 7 is overlapped with the annular frame 7 from the beginning, and the annular frame 7 is pressed by pressing means (not shown). That is, when the jig frame 14 of the diameter reducing jig 13 is pressed by the annular frame 7, the annular frame 1A of the unit core 1 is reduced in diameter as the jig frame 14 moves, and the annular frame 7 It will be sequentially fitted on the outer periphery of the row 1A. When the work proceeds in this state, the annular frame 7 can be fitted while the annular row 1A of the unit cores 1 is reduced in diameter by the diameter reducing jig 13. Further, at the stage when the annular frame 7 is completely fitted into the annular row 1A of the unit cores 1, the jig 13 can be pressed by the movement of the annular frame 7 and pulled out from the annular row 1A of the unit cores 1. . A diameter reducing jig 13 is first fitted on the outer periphery of the annular row 1A of the unit cores 1, and the annular row of the unit cores 1 is formed on the lower half side of the annular row 1A of the unit cores 1 in the axial center direction. 1A can be reduced in diameter, and the annular frame 7 can be fitted into the annular row 1A of the unit core 1 in such a state. Again,
At the stage when the annular frame 7 is completely fitted into the annular row 1A of the unit cores 1, the diameter reducing jig 13 can be pressed by the movement of the annular frame 7 and pulled out from the annular row 1A of the unit cores 1. The pulling-out of the diameter reducing jig 13 from the annular row 1A of the unit cores 1 can be performed by pulling the diameter reducing jig 13 by another pulling means. In particular, when a roller bearing or a ball bearing is used as the pressure slider 15 and a part of the roller or ball is projected to the inner periphery of the jig frame, each unit core 1 is formed by a part of the roller or ball. Can be pressed in the centripetal direction to easily reduce the diameter of the annular row 1A of the unit cores 1 and easily slide the jig 13 into the outer periphery of the annular row 1A of the unit cores 1 to fit. In this case, the stator positioning jig 1
When the outer diameter of the first pedestal portion 11c is set to be equal to or less than the outer diameter of the annular row 1A of the unit cores 1, the reduced diameter jig 13 that is pressed and moved can easily pass through the pedestal portion 11c, and is pulled out. Can be easily performed. Further, even if the stator positioning pins 8b are fitted into the stator positioning holes 8a of the respective unit cores 1 and positioned, the stator positioning pins 8b and the stator positioning holes 8a reduce the diameter of the annular row 1A of the unit cores 1. Since the diameter reduction movement of the unit core 1 in the centripetal direction is made possible, the diameter reduction of the annular row 1A of the unit cores 1 can be performed without any trouble. FIG. 3 shows another example of the stator positioning jig 11 used in the present invention. In the stator positioning jig 11 of the present example, the pedestal portion 11 of the stator positioning jig 11 is used as the unit core circumferential direction positioning means 8.
A plurality of stator positioning magnets 8d are provided on c at predetermined intervals in the circumferential direction thereof and mainly adsorb the yoke portion 1a of each unit core 1. In this case, each of the stator positioning magnets 8d is mounted on the pedestal portion 11c such that the upper surface thereof coincides with the outer peripheral upper surface of the pedestal portion 11c.
A recess 11d is provided in the center of the pedestal portion 11c so as to float the inward end of the unit core 1 by the thickness of the unit winding 2. The interval between the stator positioning magnets 8d is determined so as to correspond to the center of the yoke portion 1a of each unit core 1. In the center of the concave portion 11d of the pedestal portion 11c, a columnar inner diameter reference mandrel 12 as a unit core inner diameter direction positioning means is protruded. As described above, the unit core circumferential direction positioning means 8
Is composed of a plurality of stator positioning magnets 8d provided on the pedestal portion 11c of the stator positioning jig 11 at a predetermined interval in the circumferential direction thereof and adsorbing each unit core 1, the positioning of each unit core 1 is simply performed by the unit. It is only necessary to attract the core 1 to the stator positioning magnet 8d, and the positioning of the split stator main body 5 for the rotating electric machine can be performed very easily. When the unit core 1 is positioned by the stator positioning magnet 8d, the diameter reduction movement of the unit core 1 in the centripetal direction can be performed without any trouble, and the diameter reduction of the annular row 1A of the unit core 1 can be performed without any trouble. it can. In this case, each stator positioning magnet 8d is
When the unit core 1 is incorporated into the pedestal portion 11c so that the upper surface thereof coincides with the upper surface of the pedestal portion 11c, each unit core 1
Can be smoothly moved on the base 11c. As the pressure slider 15 of the diameter reducing jig 13, for example, a wedge-shaped body made of tetrafluoroethylene or a metal wedge having a smoothed end surface is used to cure a large number of the wedge-shaped bodies. The jig frame 14 may be provided on the inner periphery of the jig frame 14 in a wedge shape so that the height on the entrance side of the jig frame 14 is low and the height on the exit side is high. In the examples shown in FIGS. 1 and 3, the case where the inner diameter reference mandrel 12 as the unit core inner diameter direction positioning means of the stator positioning jig 11 is cylindrical is shown.
The shape of the inner diameter reference core 12 is not limited to this, and may be, for example, an annular shape. In the above example, the connection of the yoke portion 1a of each unit core 1 is preferably performed by the annular frame 7. However, the connection may be performed by welding or a tying tool such as fiber. Alternatively, it may be performed using a resin mold or the like. Further, in the above example, an example was described in which the present invention was applied to a case where both ends of the yoke portion 1a of each unit core 1 were flat surfaces 1c, but the present invention is not limited to this. As shown in FIG. 4, a split type stator using a unit core 1 of a type in which an arc-shaped end surface of a yoke portion 1a is fitted with an arc-shaped end surface of an adjacent yoke portion 1a and a concave portion 6a and a convex portion 6b. The same can be applied to the manufacturing method. The constituent features of some of the inventions described above are as follows. (1) A unit core having a yoke portion and a winding portion constituting a part of an annular yoke portion of a stator core, and a plurality of unit windings wound around the winding portion of the unit core. In a stator positioning jig for manufacturing a split type stator for a rotating electric machine for positioning a stator splitter in an annular shape, a circumferential side of a unit core of the stator splitter is arranged on a peripheral side on a pedestal portion in which the stator splitters are annularly arranged. A unit core circumferential positioning means for performing positioning is provided in an annular shape, and the center side on the pedestal portion is abutted against an arc-shaped polar surface at the tip of a winding portion of each unit core to perform positioning in the inner diameter direction. A split type stay for a rotating electric machine, characterized in that an inner diameter reference mandrel as a unit core radial direction positioning means to be performed is provided so as to project concentrically with respect to the unit core circumferential direction positioning means. Manufacturing stator positioning jig. (2) The unit core circumferential direction positioning means is protruded through a support base for floating the unit core by the thickness of the unit winding, and is passed through a stator positioning hole of each unit core. The stator positioning jig for manufacturing a split type stator for a rotating electric machine according to item (1), characterized by comprising a stator positioning pin. (3) The unit core circumferential direction positioning means is fixedly mounted on the outer peripheral side of the pedestal portion in a height corresponding to the unit cores at a height for floating the unit cores by the thickness of the unit winding. The stator positioning jig for manufacturing a split-type stator for a rotating electric machine according to item (1), characterized by being constituted by a stator positioning magnet. According to the method of manufacturing a split type stator for a rotating electrical machine of the present invention, a split type stator body for a rotating electrical machine using a unit core is mounted on a pedestal portion of a stator positioning jig by a reducing jig. Is fitted on the outer periphery of the annular row of unit cores, and the arc-shaped pole surface in the winding winding portion of each unit core is abutted on the outer periphery of the inner diameter reference core on the pedestal portion, and the yoke portion of each unit core is Since the both ends are in contact with the end of the adjacent yoke, the circularity of the circular inner peripheral surface formed by the arc-shaped polar surface at the end of the winding winding part of each unit core and the diameter reduction work is determined. It is possible to easily perform the work of easily improving. Further, since the diameter reducing jig has a structure in which each pressure slide is slid on the outer circumference of the annular row of unit cores, the structure is simple, the structure can be reduced in weight and the handling is easy. each pressurized圧滑Doko a common pressing presses each respective unit cores corresponding to centripetal direction applied to the jig frame, rotating
The diameter-reducing movement of the split stator body for electric machine can be easily performed .

【図面の簡単な説明】 【図1】本発明に係る回転電機用分割型ステータの製造
方法における実施の形態の一例における組み立て前の状
態を示した斜視図である。 【図2】本例で用いている単位コアの環状列の正面図で
ある。 【図3】本発明で用いるステータ位置決め治具の他の例
を示す斜視図である。 【図4】従来の回転電機用分割型ステータの一部を横断
して示した正面図である。 【符号の説明】 1 単位コア 1a 継鉄部分 1b 巻線巻回部分 1c 平坦面 1d 円弧状極面 1A 単位コアの環状列 2 単位巻線 3 ボビン 4 ステータ分割子 5 回転電機用分割型ステータ本体 6 継鉄位置決め部 6a 凹部 6b 凸部 7 環状フレーム 8 単位コア周方向位置決め手段 8a ステータ位置決め孔 8b ステータ位置決めピン 8c 支え台部 9 ステータ本体嵌合孔 10 取付け孔 11 ステータ位置決め治具 11a ベース盤部 11b スタンド部 11c 台座部 11d 凹部 12 内径基準心金(単位コア内径方向位置決め手段) 13 縮径治具 14 治具フレーム 14a 中心孔 15 加圧滑動子 15a ローラ
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a state before assembling in an example of an embodiment of a method of manufacturing a split type stator for a rotating electric machine according to the present invention. FIG. 2 is a front view of an annular row of unit cores used in the present example. FIG. 3 is a perspective view showing another example of a stator positioning jig used in the present invention. FIG. 4 is a front view showing a part of a conventional split type stator for a rotating electric machine in a cross-sectional view. [Description of Signs] 1 Unit core 1a Yoke portion 1b Winding winding portion 1c Flat surface 1d Arc-shaped pole surface 1A Annular row of unit core 2 Unit winding 3 Bobbin 4 Stator splitter 5 Split type stator body for rotating electric machine 6 yoke positioning part 6a concave part 6b convex part 7 annular frame 8 unit core circumferential direction positioning means 8a stator positioning hole 8b stator positioning pin 8c support base part 9 stator body fitting hole 10 mounting hole 11 stator positioning jig 11a base board part 11b Stand 11c Pedestal 11d Recess 12 Inner diameter reference mandrel (unit core inner diameter direction positioning means) 13 Reduced diameter jig 14 Jig frame 14a Center hole 15 Pressure slider 15a Roller

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小山 正寛 東京都豊島区北大塚一丁目十五番一号 山洋電気株式会社内 (56)参考文献 特開 平7−163070(JP,A) 特開 平6−86511(JP,A) 特開 平7−336965(JP,A) (58)調査した分野(Int.Cl.7,DB名) H02K 15/085 H02K 1/14 H02K 1/18 H02K 15/02 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masahiro Koyama 1-5-15-1 Kita-Otsuka, Toshima-ku, Tokyo Inside Sanyo Electric Co., Ltd. (56) References JP-A-7-163070 (JP, A) JP-A-6-86511 (JP, A) JP-A-7-336965 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) H02K 15/085 H02K 1/14 H02K 1/18 H02K 15/02

Claims (1)

(57)【特許請求の範囲】 【請求項1】 ステータコアの環状継鉄部の一部を構成
する継鉄部分と巻線巻回部分とを有する単位コアの前記
巻線巻回部分に単位巻線を巻回してなる複数のステータ
分割子を、前記各単位コアの継鉄部分における円弧方向
の端部を相互に突き合わせた状態で環状に並べて回転電
機用分割型ステータ本体を構成して回転電機用分割型ス
テータを製造するに際し、 環状の治具フレームの内周に前記各単位コアに対応して
加圧滑動子の一部を突出させた構造の縮径治具を、ステ
ータ位置決め治具の台座部上に配置した前記回転電機用
分割型ステータ本体における前記単位コアの環状列の外
周に嵌めて、該台座部上の内径基準心金の外周に、前記
各単位コアの巻線巻回部分における円弧状極面を突き当
て且つ前記各単位コアの継鉄部分における両端部を隣の
前記継鉄部分の端部に突き合わせた状態にして前記回転
電機用分割型ステータ本体を縮径し、 縮径された前記回転電機用分割型ステータ本体の前記各
単位コアの環状列の外周に予熱された環状フレームを焼
き嵌めして前記各単位コアの継鉄部分を連結することを
特徴とする回転電機用分割型ステータの製造方法。
(57) [Claims] [Claim 1] A part of the annular yoke portion of the stator core
The unit core having a yoke portion and a winding portion
Multiple stators with unit windings wound around the winding part
The divider is positioned in the arc direction at the yoke portion of each unit core.
With the ends of the
The split type stator for rotating electric machine
When manufacturing the theta, the inner periphery of the annular jig frame corresponds to each of the unit cores.
Use a diameter reducing jig with a structure in which a part of the pressure slider protrudes.
For the rotating electric machine placed on the base of the data positioning jig
Outside the annular row of the unit cores in the split stator body
Around the circumference of the inner diameter reference mandrel on the base,
Abutting the arc-shaped pole surface in the winding part of each unit core
And both ends of the yoke portion of each unit core are adjacent to each other.
Rotate the yoke in a state where it abuts against the end of the yoke section
Each of the divided stator bodies for a rotating electric machine, which has a reduced diameter of the split stator body for an electric machine, and has a reduced diameter.
Burn the preheated annular frame around the outer periphery of the annular array of unit cores.
Fitting and connecting the yoke portion of each of the unit cores.
A method for manufacturing a split type stator for a rotating electric machine.
JP13993196A 1996-06-03 1996-06-03 Method of manufacturing split type stator for rotating electric machine Expired - Fee Related JP3386660B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13993196A JP3386660B2 (en) 1996-06-03 1996-06-03 Method of manufacturing split type stator for rotating electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13993196A JP3386660B2 (en) 1996-06-03 1996-06-03 Method of manufacturing split type stator for rotating electric machine

Publications (2)

Publication Number Publication Date
JPH09322493A JPH09322493A (en) 1997-12-12
JP3386660B2 true JP3386660B2 (en) 2003-03-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3386660B2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512783C2 (en) * 1998-03-30 2000-05-15 Hoeganaes Ab Stator assembly for an electric machine
JP4638875B2 (en) * 2004-08-26 2011-02-23 サムソン エレクトロ−メカニックス カンパニーリミテッド. Coil winding jig, electromagnet manufacturing method, electromagnet, motor, and recording medium driving device
JP2008022617A (en) * 2006-07-12 2008-01-31 Sumitomo Electric Ind Ltd Stator and its manufacturing method
JP4885689B2 (en) * 2006-11-16 2012-02-29 アスモ株式会社 Stator manufacturing method
JP4841464B2 (en) * 2007-03-05 2011-12-21 本田技研工業株式会社 Press-fitting device
JP4959389B2 (en) * 2007-03-22 2012-06-20 パナソニック株式会社 motor
JP5098570B2 (en) 2007-10-25 2012-12-12 トヨタ自動車株式会社 Rotating electrical machine manufacturing method and rotating electrical machine
JP5446850B2 (en) * 2009-12-25 2014-03-19 トヨタ自動車株式会社 Stator core manufacturing equipment
JP6130257B2 (en) * 2013-07-19 2017-05-17 本田技研工業株式会社 Stator manufacturing apparatus and stator manufacturing method
TW201642552A (en) * 2015-05-28 2016-12-01 范揚鋒 Stator structure of motor, stator unit and method for manufacturing thereof

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Publication number Publication date
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