JP6257834B2 - Stator for rotating electrical machine and method for manufacturing the same - Google Patents

Stator for rotating electrical machine and method for manufacturing the same Download PDF

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JP6257834B2
JP6257834B2 JP2017500487A JP2017500487A JP6257834B2 JP 6257834 B2 JP6257834 B2 JP 6257834B2 JP 2017500487 A JP2017500487 A JP 2017500487A JP 2017500487 A JP2017500487 A JP 2017500487A JP 6257834 B2 JP6257834 B2 JP 6257834B2
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insulating film
stator
protruding
machine according
cores
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JPWO2016132420A1 (en
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池田　剛
剛 池田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

Description

本発明は、分割コアと、そのティース部に巻回されるコイルとを電気的に絶縁するために、絶縁フィルムを用いた回転電機のステータ、およびその製造方法に関するものである。   The present invention relates to a stator of a rotating electrical machine using an insulating film in order to electrically insulate a split core and a coil wound around a tooth portion thereof, and a method for manufacturing the same.

従来の回転電機のステータにおいて、分割コアの内径側となる面に絶縁フィルムを添わせ、その上からコイルを巻回し、分割コアとコイルとを電気的に絶縁している。また、ティース先端部で絶縁フィルムを軸方向にカットして、バックヨーク部側に折り曲げ、隣接するティース部に巻回されたコイル間に挿入することで、隣接するコイル同士の絶縁を行っている(例えば、特許文献１参照)。   In a stator of a conventional rotating electrical machine, an insulating film is attached to a surface on the inner diameter side of a split core, and a coil is wound from above to insulate the split core from the coil. Moreover, the insulation film is insulated between adjacent coils by cutting the insulating film in the axial direction at the tip of the teeth, bending it to the back yoke portion side, and inserting it between the coils wound around the adjacent teeth portion. (For example, refer to Patent Document 1).

国際公開第２０１０／１００８９０号International Publication No. 2010/100890

特許文献１に記載されている回転電機のステータにおいては、絶縁フィルムをバックヨーク部側に折り曲げ、隣接するティース部に巻回されたコイル間に挿入しているが、絶縁フィルムがその弾性力によりコイル間から外れてしまうことがあった。そのため、分割コアの関節部で折り曲げ、分割コアを環状に配置する際、絶縁フィルムがコイル間から外れないように押さえる必要があり、製造時の工数が増加してしまうという課題があった。 In the stator of the rotating electrical machine described in Patent Document 1, the insulating film is bent to the back yoke portion side and inserted between the coils wound around the adjacent teeth portion. There was a case where the coil was detached from between the coils. Therefore, when the split core is bent at the joint portion and the split core is arranged in an annular shape, it is necessary to hold the insulating film so that it does not come off between the coils, resulting in an increase in man-hours during manufacturing.

本発明は、以上のような課題を解決するためになされたもので、製造時の工数の増加を抑制することができる回転電機のステータ、およびその製造方法を提供することを目的としている。   SUMMARY An advantage of some aspects of the invention is that it provides a stator for a rotating electrical machine that can suppress an increase in the number of man-hours during manufacturing, and a method for manufacturing the stator.

本発明に係る回転電機のステータは、周方向に延在するバックヨーク部と、前記バックヨーク部の中央部から中心方向に突出したティース部と、前記ティース部の先端に位置するティース先端部と、で構成され、環状に配置される複数の分割コアと、前記分割コアの軸方向の両端面に配置される一対のインシュレータと、隣接する前記分割コア間のスロットを形成する面に装着され、前記ティース部に巻回されるコイルと前記分割コアとを絶縁する絶縁フィルムと、を備え、前記絶縁フィルムは、隣接する前記コイル間に、中心方向に突出した突出部を有し、前記分割コアが環状に配置される前の状態において、前記絶縁フィルムの周方向の端部は、前記突出部と接触しているものである。 A stator for a rotating electrical machine according to the present invention includes a back yoke portion extending in a circumferential direction, a tooth portion protruding in a central direction from a center portion of the back yoke portion, and a tooth tip portion positioned at a tip of the tooth portion. A plurality of split cores arranged annularly, a pair of insulators arranged on both axial end faces of the split core, and a surface forming a slot between the adjacent split cores, An insulating film that insulates the coil wound around the teeth portion and the split core, and the insulating film has a protruding portion protruding in a central direction between the adjacent coils, and the split core In a state before the ring is arranged in an annular shape, the end in the circumferential direction of the insulating film is in contact with the protrusion.

本発明に係る回転電機のステータによれば、絶縁フィルムの周方向の各端部は、それぞれ中心方向に突出した突出部と接触しているため、絶縁フィルムの周方向の各端部と突出部との間の摩擦、または突出部の面による押さえつけによって、絶縁フィルムの周方向の各端部が突出部に引っ掛かった状態（または、保持された状態）となる。そのため、絶縁フィルムがその弾性力によりコイル間から外れてしまうのを抑制することができ、分割コアの関節部で折り曲げ、各分割コアを環状に配置する際、絶縁フィルムがコイル間から外れないように押さえる必要がなく、製造時の工数の増加を抑制することができる。   According to the stator of the rotating electrical machine according to the present invention, each end portion in the circumferential direction of the insulating film is in contact with the protruding portion protruding in the center direction, and thus each end portion and protruding portion in the circumferential direction of the insulating film. Each end of the insulating film in the circumferential direction is caught (or held) by the friction between the projection and the surface of the projection. Therefore, the insulating film can be prevented from coming off between the coils due to its elastic force, and the insulating film does not come off from between the coils when bent at the joints of the split core and arranged in a ring shape. Therefore, it is possible to suppress an increase in man-hours during manufacturing.

本発明の実施の形態１に係る回転電機のステータが環状に配置される前の状態を示す斜視図である。It is a perspective view which shows the state before the stator of the rotary electric machine which concerns on Embodiment 1 of this invention is arrange | positioned cyclically | annularly. 図１においてティース部のみを示す図である。It is a figure which shows only a teeth part in FIG. 図１においてインシュレータのみを示す図である。It is a figure which shows only an insulator in FIG. 図１においてフィルムのみを示す図である。It is a figure which shows only a film in FIG. 本発明の実施の形態１に係る回転電機のステータが環状に配置された状態を示す斜視図である。It is a perspective view which shows the state by which the stator of the rotary electric machine which concerns on Embodiment 1 of this invention was arrange | positioned cyclically | annularly. 本発明の実施の形態１に係る回転電機のステータの要部拡大図である。It is a principal part enlarged view of the stator of the rotary electric machine which concerns on Embodiment 1 of this invention. 本発明の実施の形態２に係る回転電機のステータの要部拡大図である。It is a principal part enlarged view of the stator of the rotary electric machine which concerns on Embodiment 2 of this invention.

以下、本発明の実施の形態を図面に基づいて説明する。なお、以下に説明する実施の形態によって本発明が限定されるものではない。また、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, in the following drawings, the relationship of the size of each component may be different from the actual one.

実施の形態１．
図１は、本発明の実施の形態１に係る回転電機のステータ１が環状に配置される前の状態を示す斜視図、図２は、図１においてティース部１２のみを示す図、図３は、図１においてインシュレータ２０のみを示す図、図４は、図１においてフィルムのみを示す図、図５は、本発明の実施の形態１に係る回転電機のステータ１が環状に配置された状態を示す斜視図、図６は、本発明の実施の形態１に係る回転電機のステータ１の要部拡大図である。Embodiment 1 FIG.
1 is a perspective view showing a state before a stator 1 of a rotating electrical machine according to Embodiment 1 of the present invention is annularly arranged, FIG. 2 is a view showing only a tooth portion 12 in FIG. 1, and FIG. 1 shows only the insulator 20, FIG. 4 shows only the film in FIG. 1, and FIG. 5 shows a state in which the stator 1 of the rotating electrical machine according to Embodiment 1 of the present invention is arranged in an annular shape. FIG. 6 and FIG. 6 are enlarged views of the main part of the stator 1 of the rotating electrical machine according to the first embodiment of the present invention.

図１に示すように、本実施の形態１に係る回転電機のステータ１は、複数の分割コア１０が連結されて構成されている。図２および図６に示すように、分割コア１０は、周方向に延在するバックヨーク部１１と、バックヨーク部１１の中央部から中心方向に突出するティース部１２と、ティース部１２の先端に位置し、ティース部１２よりも周方向の両側に突出したティース先端部１３と、からなる。   As shown in FIG. 1, the stator 1 of the rotating electrical machine according to the first embodiment is configured by connecting a plurality of divided cores 10. As shown in FIGS. 2 and 6, the split core 10 includes a back yoke portion 11 extending in the circumferential direction, a tooth portion 12 projecting from the center portion of the back yoke portion 11 in the center direction, and a tip of the tooth portion 12. The teeth tip portion 13 is located on the both sides in the circumferential direction from the teeth portion 12.

バックヨーク部１１の周方向の両方の端部３２には、それぞれ関節部１４が設けられており、隣接する分割コア１０のバックヨーク部１１の関節部１４同士を固定することにより、複数の分割コア１０が連結されている。
また、隣接する分割コア１０間には、スロット１５が形成されている。具体的には、隣接する分割コア１０の、バックヨーク部１１の内径側の面、ティース部１２の周方向の側面、および、ティース先端部１３の外径側の面によって囲まれる空間により、スロット１５が形成されている。Both end portions 32 in the circumferential direction of the back yoke portion 11 are provided with joint portions 14, and a plurality of divided portions can be obtained by fixing the joint portions 14 of the back yoke portions 11 of the adjacent divided cores 10. The cores 10 are connected.
A slot 15 is formed between adjacent divided cores 10. Specifically, the slot is defined by the space surrounded by the inner diameter side surface of the back yoke portion 11, the circumferential side surface of the tooth portion 12, and the outer diameter side surface of the tooth tip portion 13 of the adjacent split core 10. 15 is formed.

図１、図３、および図５に示すように、各分割コア１０の軸方向の両端面には、バックヨーク部１１、ティース部１２、および、ティース先端部１３を覆うように、一対のインシュレータ２０が装着されている。
また、図１および図６に示すように、各分割コア１０のスロット１５を形成する面、つまり、バックヨーク部１１の内径側の面、ティース部１２の周方向の側面、および、ティース先端部１３の外径側の面を覆うように、フィルム状の絶縁フィルム３０が装着されている。As shown in FIGS. 1, 3, and 5, a pair of insulators are provided so as to cover the back yoke portion 11, the teeth portion 12, and the tooth tip portion 13 on both end surfaces in the axial direction of each divided core 10. 20 is attached.
Further, as shown in FIGS. 1 and 6, the surface of each divided core 10 forming the slot 15, that is, the inner diameter side surface of the back yoke portion 11, the circumferential side surface of the tooth portion 12, and the tooth tip portion A film-like insulating film 30 is mounted so as to cover the outer diameter side surface of 13.

なお、インシュレータ２０は、例えば樹脂成形品である。また、絶縁フィルム３０は、例えばポリエチレンテレフタラート（ＰＥＴ）等の樹脂からなるフィルム状の絶縁体である。   The insulator 20 is a resin molded product, for example. The insulating film 30 is a film-like insulator made of a resin such as polyethylene terephthalate (PET).

図１、図５、および図６に示すように、各分割コア１０のティース部１２には、インシュレータ２０および絶縁フィルム３０を介して、コイル４０が巻回されており、分割コア１０とコイル４０とは、インシュレータ２０および絶縁フィルム３０により、電気的に絶縁されている。
図５に示すように、インシュレータ２０および絶縁フィルム３０を介してコイル４０が巻回された各分割コア１０は、関節部１４で折り曲げられ、環状に配置されることにより、回転電機のステータ１を形成している。As shown in FIGS. 1, 5, and 6, a coil 40 is wound around the tooth portion 12 of each divided core 10 via an insulator 20 and an insulating film 30. Is electrically insulated by the insulator 20 and the insulating film 30.
As shown in FIG. 5, each divided core 10 around which the coil 40 is wound via the insulator 20 and the insulating film 30 is bent at the joint portion 14 and arranged in an annular shape, so that the stator 1 of the rotating electrical machine is formed. Forming.

次に、回転電機のステータ１の製造方法について説明する。
隣接する分割コア１０のバックヨーク部１１の関節部１４同士を固定することにより、複数の分割コア１０を連結する。次に、連結された各分割コア１０の内径側の面に沿って、絶縁フィルム３０を装着する。なお、分割コア１０の内径側の面とは、ティース先端部１３の内径側の面と周方向の側面、および、スロット１５を形成する面（バックヨーク部１１の内径側の面、ティース部１２の周方向の側面、および、ティース先端部１３の外径側の面）である。Next, a method for manufacturing the stator 1 of the rotating electrical machine will be described.
By fixing the joint portions 14 of the back yoke portions 11 of the adjacent divided cores 10, the plurality of divided cores 10 are connected. Next, the insulating film 30 is mounted along the inner diameter side surface of each connected divided core 10. The inner diameter side surface of the split core 10 includes the inner diameter side surface and the circumferential side surface of the tooth tip portion 13, and the surface forming the slot 15 (the inner diameter side surface of the back yoke portion 11, the tooth portion 12. Side surface in the circumferential direction, and the outer diameter side surface of the tooth tip portion 13).

連結された各分割コア１０の内径側の面に沿って、絶縁フィルム３０を装着する際に、図６に示すように、各スロット１５内において、絶縁フィルム３０の、関節部１４に対して径方向で重なる位置（分割コア１０同士をまたぐ位置）に、中心方向に突出した三角形の突出部３１を形成する。   When the insulating film 30 is attached along the inner diameter side surface of each of the divided cores 10 connected, the diameter of the insulating film 30 relative to the joint portion 14 is within each slot 15 as shown in FIG. A triangular projecting portion 31 projecting in the center direction is formed at a position overlapping in the direction (a position straddling the divided cores 10).

次に、各分割コア１０の軸方向の両端面に、バックヨーク部１１、ティース部１２、および、ティース先端部１３を覆うように、一対のインシュレータ２０を装着する。そして、各分割コア１０のティース部１２に、インシュレータ２０および絶縁フィルム３０を介して、コイル４０を巻回する。   Next, a pair of insulators 20 is attached to both axial end surfaces of each divided core 10 so as to cover the back yoke portion 11, the tooth portion 12, and the tooth tip portion 13. Then, the coil 40 is wound around the teeth portion 12 of each divided core 10 via the insulator 20 and the insulating film 30.

次に、各分割コア１０のティース先端部１３の中央部で、絶縁フィルム３０を軸方向にカットする。カットすることにより複数に分断された絶縁フィルム３０の周方向の各端部３２を、それぞれティース先端部１３の周方向の端部近傍を軸として、バックヨーク部１１側に折り曲げる。そして、折り曲げた各端部３２を、隣接するティース部１２に巻回されたコイル４０間に挿入することにより、隣接するコイル４０同士の絶縁を行っている。   Next, the insulating film 30 is cut in the axial direction at the center of the tooth tip portion 13 of each divided core 10. Each end 32 in the circumferential direction of the insulating film 30 divided into a plurality by cutting is bent toward the back yoke portion 11 around the vicinity of the circumferential end of the tooth tip 13. Then, the adjacent end portions 32 are inserted between the coils 40 wound around the adjacent tooth portions 12 to insulate the adjacent coils 40 from each other.

このとき、絶縁フィルム３０の周方向の各端部３２を、それぞれ突出部３１と（点）接触させる。そうすることで、絶縁フィルム３０の周方向の各端部３２と突出部３１との間の摩擦、または突出部３１の面による押さえつけによって、絶縁フィルム３０の周方向の各端部３２が突出部３１に引っ掛かった状態（または、保持された状態）となり、絶縁フィルム３０がその弾性力によりコイル４０間から外れてしまうのを抑制することができる。   At this time, each end 32 in the circumferential direction of the insulating film 30 is brought into contact with the protruding portion 31 (point). By doing so, each end 32 in the circumferential direction of the insulating film 30 is a protrusion by friction between each end 32 in the circumferential direction of the insulating film 30 and the protrusion 31 or pressing by the surface of the protrusion 31. It is possible to prevent the insulating film 30 from being detached from between the coils 40 due to its elastic force.

最後に、各分割コア１０の関節部１４で折り曲げ、分割コア１０を環状に配置し、両端の分割コア１０同士を溶接等の手段でくっつけることにより、回転電機のステータ１が完成する。   Finally, the stator 1 of the rotating electrical machine is completed by bending at the joint portions 14 of the divided cores 10, arranging the divided cores 10 in an annular shape, and attaching the divided cores 10 at both ends by means such as welding.

以上のように、絶縁フィルム３０の、関節部１４に対して径方向で重なる位置（分割コア１０同士をまたぐ位置）に、中心方向に突出した三角形状の突出部３１を形成し、絶縁フィルム３０の周方向の各端部３２を、それぞれ突出部３１と（点）接触させる。そうすることで、絶縁フィルム３０の周方向の各端部３２が、突出部３１に引っ掛かった状態（または、保持された状態）となり、絶縁フィルム３０がその弾性力によりコイル４０間から外れてしまうのを抑制することができる。そのため、分割コア１０の関節部１４で折り曲げ、分割コア１０を環状に配置する際、従来のように絶縁フィルム３０がコイル４０間から外れないように押さえる必要がなく、製造時の工数の増加を抑制することができる。   As described above, at the position of the insulating film 30 that overlaps the joint portion 14 in the radial direction (the position that straddles the divided cores 10), the triangular protruding portion 31 that protrudes in the central direction is formed, and the insulating film 30. The end portions 32 in the circumferential direction are brought into contact with the protruding portions 31 (points). By doing so, each edge part 32 of the circumferential direction of the insulating film 30 will be in the state caught in the protrusion part 31 (or the state hold | maintained), and the insulating film 30 will remove | deviate from between the coils 40 with the elastic force. Can be suppressed. Therefore, when the split core 10 is bent at the joint portion 14 and arranged in a ring shape, it is not necessary to hold the insulating film 30 so that it does not come off between the coils 40 as in the prior art. Can be suppressed.

実施の形態２．
以下、本発明の実施の形態２について説明するが、実施の形態１と重複するものについては（一部の）説明を省略し、実施の形態１と同じ部分または相当する部分には同じ符号を付す。
図７は、本発明の実施の形態２に係る回転電機のステータの要部拡大図である。
本実施の形態２では、図７に示すように、絶縁フィルム３０の、関節部１４に対して径方向で重なる位置（分割コア１０同士をまたぐ位置）に、中心方向に突出した五角形の突出部３３を形成する。そして、絶縁フィルム３０の周方向の各両端部３２を、それぞれ突出部３３の周方向の面と接触させる。Embodiment 2. FIG.
Hereinafter, the second embodiment of the present invention will be described. However, the description of (a part of) the same as that of the first embodiment is omitted, and the same reference numerals are given to the same or corresponding parts as those of the first embodiment. Attached.
FIG. 7 is an enlarged view of a main part of the stator of the rotating electrical machine according to the second embodiment of the present invention.
In the second embodiment, as shown in FIG. 7, a pentagonal protruding portion that protrudes in the center direction at a position (a position that straddles the divided cores 10) that overlaps the joint portion 14 of the insulating film 30 in the radial direction. 33 is formed. Then, both end portions 32 in the circumferential direction of the insulating film 30 are brought into contact with the circumferential surfaces of the protruding portions 33, respectively.

以上のように、突出部３３を五角形とすることにより、絶縁フィルム３０の周方向の各端部３２が突出部３３の周方向の面と面接触するようになる。そのため、絶縁フィルム３０の周方向の各端部３２が三角形の突出部３１と点接触であった実施の形態１に比べ、絶縁フィルム３０の周方向の各端部３２と突出部３３との間に生じる摩擦が増え、また、突出部３３の押さえ付け力も大きくなる。その結果、絶縁フィルム３０が、その弾性力によりコイル４０間から外れてしまうのを抑制する効果を高めることができる。   As described above, by making the protrusions 33 pentagonal, the circumferential ends 32 of the insulating film 30 come into surface contact with the circumferential surfaces of the protrusions 33. Therefore, in comparison with the first embodiment in which each end 32 in the circumferential direction of the insulating film 30 is in point contact with the triangular protrusion 31, between the end 32 and the protrusion 33 in the circumferential direction of the insulating film 30. In addition, the friction generated in the projection increases, and the pressing force of the protrusion 33 increases. As a result, it is possible to enhance the effect of suppressing the insulating film 30 from coming off between the coils 40 due to its elastic force.

なお、実施の形態１では突出部３１を三角形、実施の形態２では突出部３３を五角形としたが、それに限定されない。ただし、絶縁フィルム３０の周方向の各端部３２を、それぞれ突出部３１、３３と接触させた際、絶縁フィルム３０の周方向の各端部３２と突出部３１、３３との間に摩擦が生じやすい形状、または各端部３２と突出部３１、３３との接触面が大きくなる形状が望ましい。   In the first embodiment, the protrusion 31 is a triangle, and in the second embodiment, the protrusion 33 is a pentagon. However, the present invention is not limited to this. However, when the end portions 32 in the circumferential direction of the insulating film 30 are brought into contact with the projecting portions 31 and 33, friction occurs between the end portions 32 in the circumferential direction of the insulating film 30 and the projecting portions 31 and 33, respectively. A shape that is likely to occur or a shape in which a contact surface between each end portion 32 and the protruding portions 31 and 33 is large is desirable.

また、実施の形態１、２では、突出部３１、３３の突出方向を中心方向としたが、それに限定されず、絶縁フィルム３０の周方向の各端部３２を、それぞれ突出部３１、３３と接触させ、突出部３１、３３に引っ掛かった状態（または、保持された状態）とすることができるなら、中心から多少ずれていてもよい。   Moreover, in Embodiment 1, 2, although the protrusion direction of the protrusion parts 31 and 33 was made into the center direction, it is not limited to it, Each edge part 32 of the circumferential direction of the insulating film 30 is set as the protrusion parts 31 and 33, respectively. If they can be brought into contact with each other and caught in the protrusions 31 and 33 (or held), they may be slightly deviated from the center.

また、絶縁フィルム３０の三角形の突出部３１、３３を、関節部１４に対して径方向で重なる位置に形成するとしたが、それに限定されず、分割コア１０のティース部１２にコイル４０を巻回する際に邪魔にならず、隣接するコイル４０間に配置されていればよい。   In addition, the triangular protrusions 31 and 33 of the insulating film 30 are formed at positions that overlap the joint portion 14 in the radial direction, but the invention is not limited thereto, and the coil 40 is wound around the teeth portion 12 of the split core 10. It is only necessary to be disposed between the adjacent coils 40 without disturbing.

１ ステータ、１０ 分割コア、１１ バックヨーク部、１２ ティース部、１３ ティース先端部、１４ 関節部、１５ スロット、２０ インシュレータ、３０ 絶縁フィルム、３１ （三角形の）突出部、３２ 端部、３３ （五角形の）突出部、４０ コイル。   DESCRIPTION OF SYMBOLS 1 Stator, 10 division | segmentation core, 11 back yoke part, 12 teeth part, 13 teeth front-end | tip part, 14 joint part, 15 slot, 20 insulator, 30 insulating film, 31 (triangular) protrusion part, 32 end part, 33 (pentagonal shape) A) Protrusion, 40 coils.

Claims (6)

周方向に延在するバックヨーク部と、前記バックヨーク部の中央部から中心方向に突出したティース部と、前記ティース部の先端に位置するティース先端部と、で構成され、環状に配置される複数の分割コアと、
前記分割コアの軸方向の両端面に配置される一対のインシュレータと、
隣接する前記分割コア間のスロットを形成する面に装着され、前記ティース部に巻回されるコイルと前記分割コアとを絶縁する絶縁フィルムと、を備え、
前記絶縁フィルムは、隣接する前記コイル間に、中心方向に突出した突出部を有し、
前記分割コアが環状に配置される前の状態において、
前記絶縁フィルムの周方向の端部は、前記突出部と接触している
回転電機のステータ。 A back yoke part extending in the circumferential direction, a tooth part protruding in the center direction from the center part of the back yoke part, and a tooth tip part located at the tip of the tooth part are arranged in an annular shape. Multiple split cores,
A pair of insulators disposed on both axial end surfaces of the split core;
An insulating film that is attached to a surface forming a slot between the adjacent divided cores and that insulates the divided cores from a coil wound around the teeth portion;
The insulating film has a protruding portion protruding in the center direction between the adjacent coils,
In the state before the split core is arranged in an annular shape,
A circumferential end of the insulating film is in contact with the protruding portion. 前記絶縁フィルムの周方向の両側の端部は、前記突出部の側面とそれぞれ接触しているThe end portions on both sides in the circumferential direction of the insulating film are in contact with the side surfaces of the protruding portions, respectively.
請求項１に記載の回転電機のステータ。The stator of the rotary electric machine according to claim 1. 前記突出部は、三角形である
請求項１または２に記載の回転電機のステータ。 The protrusion, the stator of the rotating electric machine according to claim 1 or 2 is triangular. 前記突出部は、五角形である
請求項１または２に記載の回転電機のステータ。 The protrusion, the stator of the rotating electric machine according to claim 1 or 2 which is pentagonal. 前記突出部の頂点は、角形であるThe apex of the protrusion is square.
請求項３または４に記載の回転電機のステータ。The stator of the rotary electric machine according to claim 3 or 4. 請求項１〜５のいずれか一項に記載の回転電機のステータの製造方法であって、
各前記分割コアの内径側の面に沿って、前記絶縁フィルムを装着し、
前記スロット内に、中心方向に突出した前記突出部を形成し、
各前記分割コアの軸方向両端面に一対の前記インシュレータを装着し、
各前記分割コアの前記ティース部に、前記インシュレータおよび前記絶縁フィルムを介して前記コイルを巻回し、
各前記分割コアの前記ティース先端部の中央部で、前記絶縁フィルムを軸方向にカットし、
前記絶縁フィルムの周方向の各端部を、前記バックヨーク部側に折り曲げ、それぞれ前記突出部と接触させ、
前記分割コアを環状に配置する
回転電機のステータの製造方法。 A method for manufacturing a stator for a rotating electrical machine according to any one of claims 1 to 5 ,
Attaching the insulating film along the inner surface of each of the divided cores,
Forming the protruding portion protruding in the center direction in the slot;
A pair of the insulators is mounted on both axial end surfaces of each of the split cores,
The coil is wound on the teeth portion of each of the split cores via the insulator and the insulating film,
At the center of the tooth tip of each of the split cores, the insulating film is cut in the axial direction,
Each end of the insulating film in the circumferential direction is bent toward the back yoke portion, and is in contact with the protruding portion, respectively.
A method of manufacturing a stator of a rotating electrical machine in which the divided core is annularly arranged.
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