JP3977224B2

JP3977224B2 - Stator for adduction motor and method for manufacturing the same

Info

Publication number: JP3977224B2
Application number: JP2002306918A
Authority: JP
Inventors: 茂樹西村
Original assignee: 松下エコシステムズ株式会社
Priority date: 2002-10-22
Filing date: 2002-10-22
Publication date: 2007-09-19
Anticipated expiration: 2022-10-22
Also published as: JP2004147380A

Description

【０００１】
【発明の属する技術分野】
本発明は固定子鉄芯を複数に分割した分割鉄芯体に巻線を直巻巻装した後、前記分割鉄芯体を環状に一体化した構成とした内転型電動機の固定子およびその製造方法に関する。
【０００２】
【従来の技術】
従来、この種の内転型電動機の固定子の製造方法においては、複数に分割した分割鉄芯体に巻線を施工したのち、分割鉄芯体を環状に配列してなる固定子の製造方法が普及されている（例えば特許文献１参照）。
【０００３】
以下、その内転型電動機の固定子について、図１１、図１２を参照しながら説明する。
【０００４】
図１１に示すように、絶縁材料２０２、２０３で絶縁処理された分割鉄芯体２０１を各相別々に極数個環状に保持し、これにＡ相巻線２０４を極数個連続的に渡り線２０５で連結して巻装し、また図１２に示すようにＢ相巻線２０６を極数個連続的に渡り線２０７で連結して巻装したのち、これらを環状に合体した構成の固定子の製造方法としていた。
【０００５】
また、この種の内転型電動機の固定子およびその製造方法においては、複数に分割した分割鉄芯体ａに対して、周方向に長い絶縁材料を装着して各相別に巻線を巻装し、環状に一体化してなるものも示されている（例えば特許文献２参照）。
【０００６】
以下、その内転型電動機の固定子およびその製造方法について、図１３〜図１５を参照しながら説明する。
【０００７】
図に示すように、固定子鉄芯３００を４個の分割鉄芯体ａ３０１が４個と分割鉄芯体ｂ３０４が４個の計８個に分割し、分割鉄芯体ａ３０１は回転子孔３０５の外周にその歯部３０１−１が略放射状になるように配置され、Ａ相巻線３０６が巻装されたＡ相巻線巻装体３０７が２個とこれと電気角で９０度隔てた位置にＢ相巻線３０８が巻装されたＢ相巻線巻装体３０９の２個は継鉄部３０１−２で分割された分割鉄芯体ｂ３０４を挟持して交互に環状に配列し固定子３１０を構成する。そして、分割鉄芯体ａ３０１に絶縁材料３０２を歯部３０１−１の上面、下面および両側面と歯部３０１−１の内周側の周方向突起３０３の内周面、そして継鉄部３０１−２の内周面分割鉄芯体ｂ３０４の内周面の約半分まで直線状に延びてカバーするように装着し、極数個のＡ相巻線３０６と極数個のＢ相巻線３０８は各々別の工程で連続的に直巻巻装し、巻線巻装終了後、前記絶縁材料３０２を分割鉄芯体ｂ３０４の内周面の円弧に沿う形状に変形させた後、前記Ａ相巻線巻装体３０７とＢ相巻線巻装体３０９を交互に環状に配列後、分割鉄芯体ｂ３０４を組合せ一体化する固定子３１０およびその製造方法としていた。
【０００８】
【特許文献１】
特開２０００−３５８３４６号公報
【特許文献２】
特開２００１−２３８３７８号公報
【０００９】
【発明が解決しようとする課題】
このような従来の図１１、図１２の固定子の構成では、渡り線２０５の管理が難しいことや別々に極数個連続的に巻線巻装した分割鉄芯体２０１を組み合わせて環状に合体する作業に多くの手間がかかるという課題があった。
【００１０】
また、図１３〜図１５に示す構成では、４個の分割鉄芯体ａを固定子の正規の寸法で環状に配列して２極のＡ相巻線または２極のＢ相巻線を巻線機（図示せず）により直巻巻装する場合、Ａ相巻線巻装時にはＢ相巻線巻装用の分割鉄芯体ａに装着した絶縁材料が前記巻線機の巻線巻回動作の障害となり、同様にＢ相巻線巻装時にはＡ相巻線巻装用の分割鉄芯体ａに装着した絶縁材料が前記巻線機の巻線巻回作業の障害となるという課題があった。
【００１１】
本発明は上記課題を解決するもので、４個の分割鉄芯体ａを固定子の正規の寸法で環状に配列して２極のＡ相巻線または２極のＢ相巻線を巻線機（図示せず）により直巻巻装する場合、Ａ相巻線巻装時にはＢ相巻線巻装用の分割鉄芯体ａに装着した絶縁材料を変形保持することにより、前記巻線機の巻線巻回動作を可能とし、少ない手間で分割鉄芯体の組立が可能な内転型電動機の固定子およびその製造方法を提供することを目的とする。
【００１２】
【課題を解決するための手段】
本発明の内転型電動機の固定子においては、４個のスロットと４個の歯部とからなる固定子鉄芯を歯部と継鉄部が一体で積層された分割鉄芯体ａが４個と、この分割鉄芯体ａに挟持される継鉄部が積層された分割鉄芯体ｂが４個の合計８個に分離分割してなり、前記分割鉄芯体ａ４個を固定子の正規の寸法で環状に保持し、絶縁処理後集中巻で電動機固定子の外周側から２極のＡ相巻線の巻装作業と２極のＢ相巻線を直巻巻装する巻装作業において、前記絶縁処理は１スロットあたり１枚のスロット絶縁フィルムＹをその端部がスロット外周部開口の中央付近にあるように装着し、巻線を巻装する分割鉄芯体ａの歯部に近いスロット絶縁フィルムＹの端面を外径方向に変形するとともに、巻線を巻装する分割鉄芯体ａの歯部から遠いスロット絶縁フィルムＹの端面を巻線作業の障害にならないように変形保持して巻線巻装し、全ての巻線巻装が完了後、分割鉄芯体ｂを外径方向から内径方向に向かって移動するとき、前記スロット絶縁フィルムＹの端面が重なるように保持して移動、押圧しながら固定子を組立してなる内転型電動機の固定子の製造方法としたものである。
【００１３】
本発明によれば、歯部４個を固定子の正規の寸法で環状に固定し、分割鉄芯体ａの歯部に近いスロット絶縁フィルムＹの端面を外径方向に変形するとともに、巻線を巻装する分割鉄芯体ａの歯部から遠いスロット絶縁フィルムＹの端面を巻線作業の障害にならないように変形保持して巻線巻装するため、少ない手間で分割鉄芯体の組立が可能となる。そして全ての巻線巻装が完了後、分割鉄芯体ｂを外径方向から内径方向に向かって移動するとき、前記スロット絶縁フィルムの端面が重なるように保持して移動、押圧しながら固定子を組立するとともに、前記絶縁処理は１スロット当たり１枚、合計４枚のスロット絶縁フィルムＹとその他の絶縁材料Ｘ等を使用しており、このスロット絶縁フィルムＹの周方向端面は少なくとも相互に１．５ｍｍ以上の重なり部分を有する切断長にするとともに重なり部分を含めてスロット中央部の外周部分およびスロット中央部の内周部分の軸方向長さを固定子鉄芯の積厚プラス３ｍｍ以上に設定し、絶縁ウェッジの挿入無しで巻線と固定子鉄芯との絶縁距離を確保した構成とするため、絶縁ウェッジ等を前記巻線と固定子鉄芯の間に装着することなく、巻線と固定子鉄芯の間の絶縁距離を所定値以上に確保することが可能な内転型電動機の固定子およびその製造方法を提供することができる。
【００１４】
【発明の実施の形態】
本発明の請求項１に記載の発明は、４個のスロットと４個の歯部とからなる固定子鉄芯を歯部と継鉄部が一体で積層された分割鉄芯体ａが４個と、この分割鉄芯体ａに挟持される継鉄部が積層された分割鉄芯体ｂが４個の合計８個に分離分割してなり、前記分割鉄芯体ａ４個を固定子の正規の寸法で環状に保持し、絶縁処理後集中巻で電動機固定子の外周側から２極のＡ相巻線の巻装作業と２極のＢ相巻線を直巻巻装する巻装作業において、前記絶縁処理は１スロットあたり１枚のスロット絶縁フィルムＹをその端部がスロット外周部開口の中央付近にあるように装着し、巻線を巻装する分割鉄芯体ａの歯部に近いスロット絶縁フィルムＹの端面を外径方向に変形するとともに、巻線を巻装する分割鉄芯体ａの歯部から遠いスロット絶縁フィルムＹの端面を巻線作業の障害にならないように変形保持して巻線巻装し、全ての巻線巻装が完了後、分割鉄芯体ｂを外径方向から内径方向に向かって移動するとき、前記スロット絶縁フィルムＹの端面が重なるように保持して移動、押圧しながら固定子を組立する製造方法としたものであり、少ない手間で分割鉄芯体の組立が可能となるという作用を有する。
【００１５】
本発明の請求項２に記載の発明は、４個のスロットと４個の歯部とからなる固定子鉄芯を歯部と継鉄部が一体で積層された分割鉄芯体ａが４個と、この分割鉄芯体ａに挟持される継鉄部が積層された分割鉄芯体ｂが４個の合計８個に分離分割してなり、前記分割鉄芯体ａ４個のみを電動機固定子の正規の寸法で環状に固定したままで保持し、絶縁処理後集中巻で２極のＡ相巻線と２極のＢ相巻線とを交互に配列するよう各々連続的に渡り線を配して直巻巻装する方式の固定子において、前記絶縁処理は１スロット当たり１枚、合計４枚のスロット絶縁フィルムＹとその他の絶縁材料Ｘ等を使用しており、このスロット絶縁フィルムＹの周方向端面は少なくとも相互に１．５ｍｍ以上の重なり部分を有する切断長にするとともに重なり部分を含めてスロット中央部の外周部分およびスロット中央部の内周部分の軸方向長さを固定子鉄芯の積厚プラス３ｍｍ以上に設定し、絶縁ウェッジの挿入無しで巻線と固定子鉄芯との絶縁距離を確保した構成としたものであり、絶縁ウェッジ等を装着することなく巻線と固定子鉄芯の間の絶縁距離を確保できるという効果を有する。
【００１６】
また、固定子鉄芯のスロットの壁面は主にスロット絶縁フィルムＹにより絶縁し、前記固定子鉄芯の上面および下面は主に別の絶縁材料により絶縁する構成としたものであり、この絶縁材料Ｘは前記スロット絶縁フィルムＹが脱落するのを防止する作用も有する。
【００１７】
以下、本発明の実施例について図面を参照しながら説明する。
【００１８】
【実施例】
（実施例１）
図１〜図１０に示すように、４個のスロット１５を有する固定子鉄芯１を歯部２と継鉄部３−１が一体の４個の分割鉄芯体ａ４と継鉄部３−２の４個の分割鉄芯体ｂ５との８個に分離分割し、分割鉄芯体ａ２は回転子孔６の外周にその歯部３−１が各々を放射状で、その位置は正規の内外径寸法と間隔に保持されて固定子１４完成時と同一になるように配置されており、樹脂成型され分割鉄芯体ａ２の上面及び仮面を絶縁する絶縁材料Ｘ３２−１と、分割鉄芯体ａ２のスロット１５側面と分割鉄芯体ｂ５の内周側面とを絶縁するスロット絶縁フィルムＹ３２−２よりなる絶縁材料３２により絶縁処理後、前記巻線を巻装する分割鉄芯体ａ２の歯部に近い側のスロット絶縁フィルムＹ３２−２の端面を外径方向に変形し、また前記分割鉄芯体ａ２から遠い側のスロット絶縁フィルムＹ３２−２を巻線巻回作業の障害にならないように変形保持した状態で分割鉄芯体ａ２に対して各々２極のＡ相巻線７またはＢ相巻線９を直巻巻装する。そして、巻線巻装完了後、分割鉄芯体ｂ５を外径方向から内径方向に向かって移動するとき、前記スロット絶縁フィルムＹ３２−２の端面が重なるように保持して移動、押圧しながら固定子１４を組立する製造方法とする。
【００１９】
上記構成において、４個の分割鉄芯体ａ２は固定子１４の正規の寸法で環状に保持したままでＡ装巻線２およびＢ相巻線５の巻装ができ、またスロット絶縁フィルムＹ３２−２の端部が重なるように分割鉄芯体ｂを組み立てるため、各々２個のＡ相巻線巻装体１０とＢ相巻線巻装体１１を組み合わせる必要が無く、また絶縁ウェッジをＡ相巻線２およびＢ相巻線５と固定子鉄芯の間に挿入することで絶縁距離を確保する必要もないため少ない手間で固定子１４の組立ができることになる。
【００２０】
また、同様の構成で固定子鉄芯１の４個のスロット１５には各々一枚のスロット絶縁フィルムＹ３２−２とその他の絶縁材料Ｘ３２−１が装着されており、このスロット絶縁フィルムＹ３２−２の周方向端面は少なくとも相互に１．５ｍｍ以上の重なり部分をスロット１５中央部の外周部分に有し、同時にスロット絶縁フィルムＹ３２−２のこの重なり部分とスロット１５中央部の内周部分の軸方向長さを固定子鉄芯１の積厚プラス３ｍｍ以上すなわち固定子鉄芯１の負荷側端面から１．５ｍｍ以上と反負荷側端面から１．５ｍｍ以上長い切断長に設定した構成とする。
【００２１】
上記構成において、２極のＡ相巻線２およびＢ相巻線５と固定子鉄芯１との絶縁距離はスロット１５中央部の外周部分および内周部分で確実に１．５ｍｍ以上に確保されることになる。そして、その他の部分は絶縁材料Ｘ３２−１により所定値以上の絶縁距離に確保されることになる。
【００２２】
図に示すように、分割鉄芯体ａ４のスロット１５の壁面に沿うように装着されたスロット絶縁フィルムＹ３２−２は、分割鉄芯体ａ４の上面を絶縁する絶縁材料Ｘ３２−１の一部と下面を絶縁する絶縁材料Ｘ３２−１の一部とにより、保持される構成とする。
【００２３】
上記構成において、スロット絶縁フィルムＹ３２−２は固定子鉄芯１のスロット壁面から、脱落が防止されることになる。
【００２４】
なお、実施例では、スロット絶縁フィルムＹ３２−２のスロット１５中央部の外周部分と内周部分の近傍の軸方向長さを固定子鉄芯１の軸方向長さプラス３ｍｍ（片側１．５ｍｍ）とし、またスロット絶縁フィルムＹ３２−２のスロット１５の外周部分の重なり寸法を１．５ｍｍ以上としたがこの数値は電動機の定格電圧などに応じて変更すべきものであり、法律に照らしてその数値は決定されるものである。
【００２５】
【発明の効果】
以上の実施例から明らかなように、本発明によれば少ない手間で固定子の組立ができる効果のある内転型電動機の固定子の製造方法を提供できる。
【００２６】
また、絶縁ウェッジ等の装着なしに、固定子の巻線と固定子鉄芯との間の絶縁距離の確保が可能な構成の内転型電動機の固定子を提供できる。
【００２７】
また、スロット絶縁フィルムＹの脱落を防止することが可能な内転型電動機の固定子を提供できる。
【図面の簡単な説明】
【図１】本発明の実施例１の内転型電動機の固定子鉄芯を示す正面図
【図２】同内転型電動機の固定子鉄芯の４個の分割鉄芯体ａを示す斜視図
【図３】同内転型電動機の分割鉄芯体ａの詳細を示す斜視図
【図４】同内転型電動機の固定子鉄芯の４個の分割鉄芯体ｂを示す詳細斜視図
【図５】同内転型電動機の分割鉄芯体ｂの詳細を示す斜視図
【図６】同内転型電動機の固定子鉄芯の４個の分割鉄芯体ａを正規の寸法に配置し、絶縁処理後の状態を示す正面図
【図７】同内転型電動機の分割鉄芯体ａに装着したスロット絶縁紙Ｙの端部を変形させ巻線を巻装する状態を示す正面図
【図８】同内転型電動機のスロット絶縁紙Ｙを装着形状に成形した状態を示す斜視図
【図９】同内転型電動機のスロット絶縁紙を展開した状態を示す正面図
【図１０】同内転型電動機の固定子の部分断面図
【図１１】従来の内転型電動機の固定子を示す正面図
【図１２】同内転型電動機の分割鉄芯体ａに巻線を巻装した状態を示す部分断面図
【図１３】従来の別の内転型電動機の固定子の部分断面図
【図１４】同内転型電動機の分割鉄芯体ａに巻線を巻装した状態を示す部分断面図
【図１５】同内転型電動機の分割鉄芯体ａに巻線を巻装した後、絶縁材料を成形した状態を示す正面図
【符号の説明】
１固定子鉄芯
２歯部
３−１、３−２継鉄部
４分割鉄芯体ａ
５分割鉄芯体ｂ
６回転子孔
７Ａ相巻線
９Ｂ相巻線
１０Ａ相巻線巻装体
１１Ｂ相巻線巻装体
１４固定子
３２絶縁材料
３２−１絶縁材料Ｘ
３２−２スロット絶縁フィルムＹ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stator of an internal rotation type electric motor having a structure in which a winding is directly wound around a divided iron core body obtained by dividing a stator iron core into a plurality of parts, and then the divided iron core body is integrated into a ring shape and the stator It relates to a manufacturing method.
[0002]
[Prior art]
Conventionally, in a method for manufacturing a stator of this type of internal motor, a method for manufacturing a stator in which a plurality of divided iron cores are wound and then the divided iron cores are arranged annularly Is widely used (see, for example, Patent Document 1).
[0003]
Hereinafter, the stator of the internal-rotation motor will be described with reference to FIGS. 11 and 12.
[0004]
As shown in FIG. 11, the divided iron cores 201 insulated by the insulating materials 202 and 203 are held in a ring shape for each phase separately, and the A phase winding 204 is continuously passed over the poles. The wire 205 is connected and wound, and as shown in FIG. 12, a plurality of B-phase windings 206 are continuously connected by the connecting wire 207 and wound, and then fixed in a ring shape. It was a manufacturing method of a child.
[0005]
In addition, in this type of stator for an internal rotation type motor and a method for manufacturing the same, a long insulating material is attached to the divided iron core body a in a circumferential direction, and windings are wound for each phase. In addition, an annularly integrated one is also shown (for example, see Patent Document 2).
[0006]
Hereinafter, the stator of the internal motor and the manufacturing method thereof will be described with reference to FIGS.
[0007]
As shown in the figure, the stator iron core 300 is divided into a total of eight parts, including four divided iron cores a301 and four divided iron cores b304. The teeth 301-1 are arranged on the outer periphery of the wire so that the teeth 301-1 are substantially radial, and two A-phase winding wound bodies 307 around which the A-phase winding 306 is wound are separated from each other by 90 degrees in electrical angle. Two of the B-phase winding wound bodies 309 around which the B-phase windings 308 are wound are sandwiched between the divided iron cores b304 divided by the yoke portion 301-2 and alternately arranged in an annular shape and fixed. A child 310 is configured. Then, the insulating material 302 is applied to the divided iron core a301 with the upper surface, the lower surface and both side surfaces of the tooth portion 301-1, the inner peripheral surface of the circumferential protrusion 303 on the inner peripheral side of the tooth portion 301-1, and the yoke portion 301-. The inner peripheral surface of the divided inner core b304 of the inner peripheral surface 2 is mounted so as to extend linearly to about half of the inner peripheral surface, and the number of poles A-phase winding 306 and the number of poles B-phase winding 308 are After each winding is continuously wound in a separate process, and after winding is finished, the insulating material 302 is deformed into a shape along the arc of the inner peripheral surface of the divided iron core body b304, and then the A phase winding is performed. After the wire wound body 307 and the B-phase winding wound body 309 are alternately arranged in an annular shape, the stator 310 is obtained by combining and integrating the divided iron cores b304, and a method for manufacturing the same.
[0008]
[Patent Document 1]
JP 2000-358346 A [Patent Document 2]
Japanese Patent Laid-Open No. 2001-238378
[Problems to be solved by the invention]
In the conventional stator configuration shown in FIGS. 11 and 12, it is difficult to manage the connecting wire 205, and the divided iron cores 201, which are separately wound around several poles, are combined into an annular shape. There was a problem that it took a lot of work to do.
[0010]
Further, in the configuration shown in FIGS. 13 to 15, four divided iron cores a are arranged in an annular shape with the normal dimensions of the stator, and two-pole A-phase winding or two-pole B-phase winding is wound. In the case of direct winding by a wire machine (not shown), when the A phase winding is wound, the insulating material attached to the split iron core a for winding the B phase winding is the winding winding operation of the winding machine. Similarly, when the B-phase winding is wound, there is a problem that the insulating material attached to the divided iron core a for winding the A-phase winding becomes an obstacle to the winding work of the winding machine. .
[0011]
The present invention solves the above-described problem. Four divided iron cores a are arranged in an annular shape with a regular dimension of a stator, and a two-pole A-phase winding or a two-pole B-phase winding is wound. In the case of direct winding by a machine (not shown), when the A-phase winding is wound, the insulating material attached to the split iron core a for winding the B-phase winding is deformed and held, It is an object of the present invention to provide a stator of an adder type electric motor capable of winding operation and capable of assembling a divided iron core with less effort and a method for manufacturing the same.
[0012]
[Means for Solving the Problems]
In the stator of the internal motor according to the present invention, there are four divided iron cores a in which the stator core composed of four slots and four teeth is laminated integrally with the teeth and the yoke. The divided iron core body b, in which the yoke portions sandwiched between the divided iron core bodies a are stacked, is divided and divided into a total of four pieces, and the four divided iron core bodies a are used as stators. Hold the ring with regular dimensions in an annular shape, wind the work of winding the 2-pole A-phase winding and the 2-pole B-phase winding directly from the outer periphery of the motor stator by concentrated winding after insulation treatment In the insulation process, one slot insulating film Y per slot is mounted so that the end thereof is in the vicinity of the center of the slot outer periphery opening, and the teeth of the divided iron core a around which the winding is wound are attached. A slot far from the tooth portion of the split iron core a that winds the winding while deforming the end face of the near slot insulating film Y in the outer diameter direction The end face of the edge film Y is deformed and held so as not to be an obstacle to the winding work and wound, and after all the winding is completed, the divided iron core b is moved from the outer diameter direction toward the inner diameter direction. When moving, a stator manufacturing method for an adder type electric motor in which the stator is assembled while holding and moving and pressing the end surfaces of the slot insulating film Y to overlap is used.
[0013]
According to the present invention, the four tooth portions are fixed in an annular shape with the regular dimensions of the stator, the end face of the slot insulating film Y close to the tooth portions of the split iron core body a is deformed in the outer diameter direction, and the winding Since the end surface of the slot insulating film Y far from the tooth portion of the divided iron core a to be wound is deformed and held so as not to hinder the winding operation, the winding is wound, so that the assembly of the divided iron core can be performed with less effort. Is possible. Then, after all the windings are completed, when the divided iron core body b is moved from the outer diameter direction toward the inner diameter direction, the stator is held while moving and pressing the end surfaces of the slot insulating films so as to overlap each other. In addition, the insulating treatment uses one slot per slot, a total of four slot insulating films Y, and other insulating materials X, etc., and the circumferential end surfaces of the slot insulating films Y are at least 1 each other. The cutting length with an overlap part of 5 mm or more is set, and the axial length of the outer peripheral part of the slot center part and the inner peripheral part of the slot center part including the overlap part is set to the thickness of the stator core plus 3 mm or more. In order to secure the insulation distance between the winding and the stator iron core without inserting an insulating wedge, without attaching an insulating wedge or the like between the winding and the stator iron core, Line and the stator insulation distance can be made to secure a predetermined value or more of the inner rotor type motor between the stator iron core and it is possible to provide a manufacturing method thereof.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, there are four divided iron cores a in which a stator iron core composed of four slots and four tooth portions is laminated integrally with the tooth portions and the yoke portions. And the divided iron core body b in which the yoke portions sandwiched between the divided iron core bodies a are separated and divided into a total of eight pieces, and the four divided iron core bodies a are normally used as stators. In the winding work of winding the 2-pole A-phase winding and the 2-pole B-phase winding directly from the outer peripheral side of the motor stator by concentrated winding after insulation treatment In the insulation process, one slot insulating film Y per slot is mounted so that the end thereof is in the vicinity of the center of the slot outer peripheral opening, and close to the tooth portion of the divided iron core a around which the winding is wound. The end surface of the slot insulation film Y is deformed in the outer diameter direction, and the slot insulation film far from the tooth portion of the divided iron core a around which the winding is wound. The end face of the mud Y is deformed and held so as not to interfere with the winding work, and the winding is wound. After all the windings are completed, the divided iron core b is moved from the outer diameter direction toward the inner diameter direction. In this case, the stator insulation is assembled while holding, moving and pressing the end surfaces of the slot insulating film Y so as to overlap each other, and it is possible to assemble the divided iron core with less effort. Have
[0015]
In the invention according to claim 2 of the present invention, there are four divided iron cores a in which a stator iron core composed of four slots and four tooth portions is laminated integrally with a tooth portion and a yoke portion. And the divided iron core body b in which the yoke portions sandwiched between the divided iron core bodies a are separated and divided into a total of four pieces, and only the four divided iron core bodies a are motor stators. The crossover wires are continuously arranged so that two-pole A-phase windings and two-pole B-phase windings are alternately arranged in a concentrated winding after insulation treatment. In the stator of the direct winding system, the insulating treatment uses one slot per slot, a total of four slot insulating films Y and other insulating materials X, and the like. The circumferential end faces have a cut length having an overlap portion of at least 1.5 mm and include the overlap portion. The axial length of the outer peripheral portion of the slot central portion and the inner peripheral portion of the slot central portion is set to a stack thickness of the stator core plus 3 mm or more, and the winding and the stator core can be connected without inserting an insulating wedge. The insulation distance is secured, and the insulation distance between the winding and the stator core can be secured without attaching an insulation wedge or the like.
[0016]
Further, the wall surface of the slot of the stator iron core is mainly insulated by the slot insulating film Y, and the upper and lower surfaces of the stator iron core are mainly insulated by another insulating material. X also has the function of preventing the slot insulating film Y from falling off.
[0017]
Embodiments of the present invention will be described below with reference to the drawings.
[0018]
【Example】
Example 1
As shown in FIGS. 1 to 10, a stator iron core 1 having four slots 15 is divided into four divided iron cores a4 and a yoke portion 3 in which a tooth portion 2 and a yoke portion 3-1 are integrated. The divided iron core body a2 is divided into eight parts with the four divided iron core bodies b5, and the tooth portions 3-1 are radially arranged on the outer periphery of the rotor hole 6, and the positions thereof are regular inside and outside. An insulating material X32-1, which is held at the same size and spacing and is arranged to be the same as when the stator 14 is completed, is resin-molded to insulate the upper surface and the temporary surface of the divided iron core body a2, and the divided iron core body After the insulation treatment by the insulating material 32 made of the slot insulating film Y32-2 that insulates the side surface of the slot 15 of a2 and the inner peripheral side surface of the divided iron core body b5, the tooth portion of the divided iron core body a2 around which the winding is wound The end face of the slot insulating film Y32-2 on the side close to the outer peripheral shape is deformed in the outer diameter direction, and the divided iron core a The two-phase A-phase winding 7 or B-phase winding 9 with respect to the divided iron core a2 in a state where the slot insulating film Y32-2 on the side far from the center is deformed and held so as not to hinder the winding operation. Is wound directly. Then, after the winding is completed, when the divided iron core b5 is moved from the outer diameter direction toward the inner diameter direction, the end face of the slot insulating film Y32-2 is held so as to overlap and fixed while moving and pressing. A manufacturing method for assembling the child 14 is used.
[0019]
In the above configuration, the four divided iron cores a2 can be wound around the A winding 2 and the B phase winding 5 while being held in an annular shape with the regular dimensions of the stator 14, and the slot insulating film Y32- Since the split iron core body b is assembled so that the ends of 2 overlap, there is no need to combine two A-phase winding bodies 10 and B-phase winding bodies 11 respectively, and an insulating wedge is used as the A-phase winding. Since it is not necessary to secure an insulation distance by inserting between the winding 2 and the B-phase winding 5 and the stator iron core, the stator 14 can be assembled with less effort.
[0020]
Further, in the same configuration, each of the four slots 15 of the stator core 1 is provided with one slot insulating film Y32-2 and other insulating material X32-1, and this slot insulating film Y32-2. The circumferential end surfaces of the slot 15 have an overlapping portion at least 1.5 mm or more at the outer peripheral portion of the central portion of the slot 15, and at the same time, the axial direction of the overlapping portion of the slot insulating film Y32-2 and the inner peripheral portion of the central portion of the slot 15 The length is set to a cutting length that is longer than the stack thickness of the stator core 1 plus 3 mm or more, that is, 1.5 mm or more from the load side end surface of the stator core 1 and 1.5 mm or more from the non-load side end surface.
[0021]
In the above configuration, the insulation distance between the two-pole A-phase winding 2 and B-phase winding 5 and the stator core 1 is reliably secured to 1.5 mm or more at the outer peripheral portion and inner peripheral portion of the central portion of the slot 15. Will be. The other portions are secured by an insulating material X32-1 at an insulation distance of a predetermined value or more.
[0022]
As shown in the drawing, the slot insulating film Y32-2 mounted along the wall surface of the slot 15 of the divided iron core body a4 includes a part of the insulating material X32-1 that insulates the upper surface of the divided iron core body a4. It is configured to be held by a part of the insulating material X32-1 that insulates the lower surface.
[0023]
In the above configuration, the slot insulating film Y32-2 is prevented from falling off from the slot wall surface of the stator core 1.
[0024]
In the embodiment, the axial length in the vicinity of the outer peripheral portion and the inner peripheral portion of the central portion of the slot 15 of the slot insulating film Y32-2 is set to the axial length of the stator core 1 plus 3 mm (1.5 mm on one side). In addition, the overlap size of the outer peripheral portion of the slot 15 of the slot insulating film Y32-2 is 1.5 mm or more, but this value should be changed according to the rated voltage of the motor, etc. It is to be decided.
[0025]
【The invention's effect】
As is apparent from the above embodiments, the present invention can provide a method for manufacturing a stator of an adder type electric motor that is effective in assembling the stator with less effort.
[0026]
In addition, it is possible to provide a stator for an internal rotation type motor having a configuration capable of ensuring an insulation distance between the stator winding and the stator iron core without mounting an insulating wedge or the like.
[0027]
Further, it is possible to provide a stator for an adder type electric motor capable of preventing the slot insulating film Y from falling off.
[Brief description of the drawings]
FIG. 1 is a front view showing a stator iron core of an adder type electric motor according to a first embodiment of the present invention. FIG. 2 is a perspective view showing four divided iron cores a of the stator iron core of the adder type electric motor. FIG. 3 is a perspective view showing details of a split iron core a of the same internal motor. FIG. 4 is a detailed perspective view showing four split iron cores b of a stator iron core of the same internal motor. FIG. 5 is a perspective view showing details of a split iron core b of the same internal motor. FIG. 6 is a diagram showing the arrangement of four split iron cores a of the stator iron core of the same internal motor in regular dimensions. FIG. 7 is a front view showing a state in which the end portion of the slot insulating paper Y attached to the split iron core body a of the same internal motor is deformed to wind the winding. FIG. 8 is a perspective view showing a state where the slot insulating paper Y of the internal motor is molded into a mounting shape. FIG. 9 is a front view showing a state where the slot insulating paper of the internal motor is developed. FIG. 11 is a partial cross-sectional view of the stator of the same internal motor. FIG. 11 is a front view showing the stator of the conventional internal motor. FIG. 12 is a winding on the split iron core a of the internal motor. FIG. 13 is a partial cross-sectional view of a stator of another conventional adder-type electric motor. FIG. 14 shows a state in which windings are wound around the split iron core body a of the adder-type electric motor. FIG. 15 is a front view showing a state in which an insulating material is molded after winding a winding around a split iron core body a of the same internal motor.
DESCRIPTION OF SYMBOLS 1 Stator iron core 2 Tooth part 3-1, 3-2 yoke part 4 Split iron core a
5 split iron core b
6 Rotor hole 7 A phase winding 9 B phase winding 10 A phase winding winding body 11 B phase winding winding body 14 Stator 32 Insulating material 32-1 Insulating material X
32-2 Slot insulation film Y

Claims

A stator iron core composed of four slots and four tooth portions is sandwiched between four divided iron core bodies a in which the tooth portions and the yoke portions are integrally laminated, and the divided iron core body a. The divided iron core body b in which the yoke portions are laminated is divided and divided into a total of four pieces, and only the four divided iron core bodies a are held in an annular shape with the regular dimensions of the stator, and after insulation treatment In the winding work in which the two-pole A-phase winding is wound directly from the outer peripheral side of the motor stator and the two-pole B-phase winding is wound directly from the outer periphery of the motor stator, the insulation treatment is performed one piece per slot. The slot insulating film Y is mounted so that the end thereof is in the vicinity of the center of the slot outer peripheral opening, and the end of the slot insulating film Y close to the tooth portion of the divided iron core a around which the winding is wound is formed on the outer diameter. The end portion of the slot insulating film Y that is deformed in the direction and is far from the tooth portion of the divided iron core a that winds the winding is an obstacle to the winding work. When the divided iron core b is moved from the outer diameter direction toward the inner diameter direction after all the winding winding is completed, the end of the slot insulating film Y is deformed and held so as not to be deformed. A method for manufacturing a stator of an adder type electric motor having a structure in which the stator is assembled while being moved, pressed and held so as to overlap each other.

A stator iron core composed of four slots and four tooth portions is sandwiched between four divided iron core bodies a in which the tooth portions and the yoke portions are integrally laminated, and the divided iron core body a. The divided iron core body b in which the yoke portions are laminated is divided and divided into a total of eight pieces, and only the four divided iron core bodies a are held while being annularly fixed with the regular dimensions of the stator. In the stator of the system in which the winding is continuously wound with the connecting wires continuously arranged so that the two-pole A-phase windings and the two-pole B-phase windings are alternately arranged in the concentrated winding after the insulation treatment, The insulating treatment uses one slot per slot, a total of four slot insulating films Y and other insulating materials X, and the circumferential ends of the slot insulating films Y are at least 1.5 mm or more from each other. The cut length has an overlapping part and the width of the outer peripheral part at the center of the slot including the overlapping part And the axial length of the predetermined width portion of the inner peripheral portion of the central portion of the slot is set to the stack thickness of the stator core plus 3 mm or more, and winding is performed without inserting an insulating wedge or the like on both the inner diameter side and the outer diameter side of the slot. A stator of an adder type electric motor having a configuration in which an insulation distance between a wire and a stator iron core is secured.

The stator of an internal motor according to claim 2, wherein the slot insulating film Y is prevented from falling off by other insulating material X or the like.