JP2009142059A - Rotating electric machine - Google Patents

Rotating electric machine Download PDF

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JP2009142059A
JP2009142059A JP2007315527A JP2007315527A JP2009142059A JP 2009142059 A JP2009142059 A JP 2009142059A JP 2007315527 A JP2007315527 A JP 2007315527A JP 2007315527 A JP2007315527 A JP 2007315527A JP 2009142059 A JP2009142059 A JP 2009142059A
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stator core
coil
slot
teeth
portions
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Tetsuya Miura
徹也 三浦
Shigenori Yoneda
繁則 米田
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To attain a rotating electric machine capable of obtaining insulation performance by providing sufficient layered amount of a layered portion formed by laminating both edges of an insulation member. <P>SOLUTION: This rotating electric machine 10 includes a stator core 20 having a plurality of teeth portions 22 and a slot portion 24 formed between adjacent teeth portions 22, a coil part disposed at a slot portion 24, and insulating sheet disposed around the coil portion 40 along an inner wall of the slot portion 24 having the layered portion that is formed by laminating both edges. The layered portions are disposed so as to face the inner wall on the teeth side of the slot portion 24, and the teeth part 22 has a shape of which the width is tapered toward an inner circumference direction from an outer circumference direction of the stator core, and has a recess in which the layered portion is disposed. The recess is provided on the outer circumference side of the stator core of which the width dimension of the teeth part 22 is large. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、回転電機に係り、特に、複数のティース部と、隣接するティース部の間に形成されるスロット部とを有するステータコアと、スロット部に配置されるコイルと、スロット部の内壁に沿ってコイルの周囲に配置される絶縁紙とを備える回転電機に関する。   The present invention relates to a rotating electrical machine, and in particular, along a stator core having a plurality of tooth portions and a slot portion formed between adjacent tooth portions, a coil disposed in the slot portion, and an inner wall of the slot portion. The present invention relates to a rotating electric machine including insulating paper disposed around a coil.

回転電機において、ステータコアに巻回されるコイルと、ステータコアとの間を絶縁する必要がある。例えば、特許文献１には、回転電機のステータコアに形成され内周側に開口が形成された複数のスロットに、シート状の絶縁部材を筒状にして配置し、その絶縁部材は両端において重なる部分である、いわゆるラップ部を形成し、その筒状の絶縁部材にコイルを挿入することが述べられている。そして、そのラップ部は、スロットの外径方向の内壁面に、対向させて配置されているものが開示されている。   In a rotating electrical machine, it is necessary to insulate between a coil wound around a stator core and the stator core. For example, in Patent Document 1, sheet-like insulating members are arranged in a plurality of slots formed in a stator core of a rotating electrical machine and openings are formed on the inner peripheral side, and the insulating members overlap at both ends. It is described that a so-called wrap portion is formed and a coil is inserted into the cylindrical insulating member. And the thing which the lap | wrap part is arrange | positioned facing the inner wall surface of the outer diameter direction of a slot is disclosed.

特開２０００−３０８３１４号公報JP 2000-308314 A

上記のように、特許文献１の構成を用いることで、ステータコアに巻回されるコイルと、ステータコアとの間を絶縁することができる。しかし、モータの小型化に伴ってステータコアの外径が小さくなると、特許文献１の構成では、ラップ部、すなわち絶縁部材の重なり部が外径方向の内壁に沿って、配置されているため、重なり部の重なり量を十分にとることができず、絶縁性能を確保することが困難となる場合がある。   As described above, by using the configuration of Patent Document 1, it is possible to insulate between the coil wound around the stator core and the stator core. However, when the outer diameter of the stator core is reduced with the miniaturization of the motor, in the configuration of Patent Document 1, the overlapping portion of the wrap portion, that is, the insulating member, is arranged along the inner wall in the outer diameter direction. There may be a case where it is difficult to ensure sufficient insulation performance due to insufficient overlap between the portions.

本発明の目的は、絶縁部材の両端を重ねて形成される重なり部の重なり量を十分に設けて、絶縁性能を確保する回転電機を提供することである。   An object of the present invention is to provide a rotating electrical machine that secures insulation performance by providing a sufficient amount of overlap of overlapping portions formed by overlapping both ends of an insulating member.

本発明に係る回転電機において、複数のティース部と、隣接するティース部の間に形成されるスロット部と、を有するステータコアと、スロット部に配置されるコイルと、スロット部の内壁に沿ってコイルの周囲に配置されて、両端を重ねて形成される重なり部を有する絶縁紙と、を備える回転電機であって、重なり部は、スロット部のティース側の内壁に対向させて配置されることを特徴とする。   In the rotating electrical machine according to the present invention, a stator core having a plurality of tooth portions and a slot portion formed between adjacent tooth portions, a coil disposed in the slot portion, and a coil along the inner wall of the slot portion And an insulating paper having an overlapping portion formed by overlapping both ends, and the overlapping portion is disposed so as to face the inner wall on the teeth side of the slot portion. Features.

ティース部は、重なり部が配置される窪みを有することが好ましい。   The teeth portion preferably has a recess in which the overlapping portion is disposed.

ティース部は、窪みを設ける前の幅がステータコアの外周方向から内周方向に向けて先細りとなりステータコアの外周側の幅寸法が大きくステータコアの内周側の幅寸法が小さい形状を有し、窪みは、ティース部の幅寸法が大きなステータコアの外周側に設けられることが好ましい。   The teeth portion has a shape in which the width before providing the recesses is tapered from the outer peripheral direction of the stator core toward the inner peripheral direction, the width dimension on the outer peripheral side of the stator core is large, and the width dimension on the inner peripheral side of the stator core is small. The teeth portion is preferably provided on the outer peripheral side of the stator core.

上記の構成により、スロット部に配置される絶縁紙の両端を重ねて形成される重なり部は、スロット部を形成するティース側の内壁面に沿って配置される。したがって、スロット部の外径方向の内壁面に、対向させて配置される場合と比べ、重なり部の重なり量を大きくとることができる。したがって、ステータコアとコイルとの間の絶縁性を確保することができる。   With the above configuration, the overlapping portion formed by overlapping both ends of the insulating paper disposed in the slot portion is disposed along the inner wall surface on the tooth side forming the slot portion. Therefore, compared with the case where it arranges on the inner wall surface of the outer diameter direction of a slot part so that it may oppose, the overlap amount of an overlap part can be taken large. Therefore, insulation between the stator core and the coil can be ensured.

以下に、図面を用いて本発明に係る実施の形態につき、詳細に説明する。なお、以下では、回転電機としてセグメントコイルを用いるものを説明するが、セグメントコイル以外のコイルを用いるものであってもよい。また、以下では、絶縁紙の語を用いるが、ここで紙とは、シート状である広義の紙を示しており、材質としては、パルプ材等のいわゆる紙材の他、天然ゴムやポリエステル、ポリウレタン等のシート状の絶縁部材を含んでいる。   Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, below, although what uses a segment coil as a rotary electric machine is demonstrated, coils other than a segment coil may be used. In addition, in the following, the term insulating paper is used, but here, the paper indicates a broad sheet of paper, and as a material, in addition to a so-called paper material such as a pulp material, natural rubber or polyester, A sheet-like insulating member such as polyurethane is included.

図１は、回転電機１０におけるスロット部２４周辺の図である。図２は、スロット部２４周辺の平面図である。回転電機１０は、ステータとロータを含んで構成される。ステータは、図１、図２に示されるように、ステータコア２０と、ステータコア２０に配置されるコイル部４０と、コイル部４０の周囲に配置されて、その両端を重ねて形成される重なり部を有する絶縁紙３０とを含んで構成される。   FIG. 1 is a view around the slot portion 24 in the rotating electrical machine 10. FIG. 2 is a plan view of the periphery of the slot portion 24. The rotating electrical machine 10 includes a stator and a rotor. As shown in FIG. 1 and FIG. 2, the stator includes a stator core 20, a coil portion 40 disposed on the stator core 20, and an overlapping portion that is disposed around the coil portion 40 and is formed by overlapping both ends thereof. And the insulating paper 30 having the same.

ステータコア２０は、ステータヨーク２６と、ステータヨーク２６から内周側に突き出す形状の複数のティース部２２と、隣接するティース部２２の間に形成されるスロット部２４とを含んで構成される。かかるステータコア２０は、所定の形状に打ち抜かれた電磁鋼板を積層したものを用いることができる。   The stator core 20 includes a stator yoke 26, a plurality of tooth portions 22 protruding from the stator yoke 26 toward the inner peripheral side, and a slot portion 24 formed between adjacent tooth portions 22. The stator core 20 may be a laminate of electromagnetic steel sheets punched into a predetermined shape.

ステータヨーク２６は、略円筒形状であってステータコア２０の一部を構成する。ステータヨーク側内壁部２１は、ステータヨーク２６の内周側に配置される内壁である。かかるステータヨーク側内壁部２１は、後述するティース側内壁部２５，２７とともにスロット部２４を形成する。   The stator yoke 26 has a substantially cylindrical shape and constitutes a part of the stator core 20. The stator yoke side inner wall portion 21 is an inner wall disposed on the inner peripheral side of the stator yoke 26. The stator yoke side inner wall portion 21 forms a slot portion 24 together with teeth side inner wall portions 25 and 27 described later.

ティース部２２は、上記のように、ステータヨーク２６の内周側に、所定の間隔ごとにロータ側に向けて延設され、ステータコア２０の外周側から幅が先細りとなる形状を有する。ティース部２２は、ステータコア２０にコイル部４０が巻回されて発生された磁束を、その内部に通過させる機能を有する。ティース部２２は、窪み部２３と、ティース側内壁部２５，２７と、先端部２９とを含んで構成される。図２に示されるようにティース部２２の幅において、ステータコア２０の外径側の幅をＷ２とし、先端部２９側の幅をＷ１とする。そして、図２に示されるように窪み部２３の幅をΔＷとした場合に、窪み部２３を設ける前の幅Ｗ３は、Ｗ２＋ΔＷとなる。したがって、窪み部２３を設ける前のティース部２２の幅において、外径側の幅Ｗ３は、先端部２９側の幅Ｗ１に比べて幅が広い。そこで、Ｗ２がＷ１以上であれば、窪み部２３を設けた場合であっても、ティース部２２において、磁束が通る断面積を他の部分より狭くすることなく、回転電機１０の性能は劣化しない。したがって、Ｗ２＝Ｗ３−ΔＷ≧Ｗ１となるように窪み部２３を設ける必要がある。   As described above, the teeth portion 22 extends on the inner peripheral side of the stator yoke 26 toward the rotor side at predetermined intervals, and has a shape whose width is tapered from the outer peripheral side of the stator core 20. The teeth portion 22 has a function of allowing a magnetic flux generated by winding the coil portion 40 around the stator core 20 to pass therethrough. The teeth part 22 includes a hollow part 23, teeth-side inner wall parts 25 and 27, and a tip part 29. As shown in FIG. 2, in the width of the tooth portion 22, the width on the outer diameter side of the stator core 20 is W2, and the width on the tip portion 29 side is W1. As shown in FIG. 2, when the width of the recess 23 is ΔW, the width W3 before the recess 23 is provided is W2 + ΔW. Therefore, the width W3 on the outer diameter side is wider than the width W1 on the distal end portion 29 side in the width of the tooth portion 22 before the recess portion 23 is provided. Therefore, if W2 is equal to or greater than W1, even if the recess 23 is provided, the performance of the rotating electrical machine 10 is not deteriorated in the teeth portion 22 without making the cross-sectional area through which the magnetic flux passes narrower than other portions. . Therefore, it is necessary to provide the recess 23 so that W2 = W3-ΔW ≧ W1.

窪み部２３は、ティース部２２に設けられ、後述する重なり部３２が配置される空間である。窪み部２３は、ティース部２２において、上記のように、窪み部２３が設けられる前において、その幅が広い外径側に設けられる。なお、窪み部２３の幅は上述したようにΔＷであって、後述する絶縁紙３０の厚みｔとした場合にΔＷ≧ｔとなる必要がある。ティース側内壁部２５，２７は、ティース部２２の側壁である。先端部２９は、ティース部２２において内周側の先端部分である。   The hollow part 23 is a space provided in the tooth part 22 and in which an overlapping part 32 described later is arranged. As described above, the recess 23 is provided on the outer diameter side where the width is wide before the recess 23 is provided in the tooth portion 22. Note that the width of the recess 23 is ΔW as described above, and it is necessary that ΔW ≧ t when the thickness t of the insulating paper 30 described later is used. The teeth side inner wall portions 25 and 27 are side walls of the tooth portion 22. The tip portion 29 is a tip portion on the inner peripheral side in the tooth portion 22.

スロット部２４は、コイル部４０が挿入される領域である。スロット部２４は、ロータ側に開口される開口部２８と、ティース側内壁部２５，２７とステータヨーク側内壁部２１とを含んで構成される。なお、図２に示されるようにスロット部２４を上面から見た場合の径方向の辺の長さをＬ１とし、窪み部２３を構成する辺の長さをＬ２とする。そして、ステータヨーク側内壁部２１を構成する辺の長さをＬ３とした場合に、Ｌ１はＬ３に比べて十分に長い長さを有している。したがって、Ｌ２＞Ｌ３とすることができる。好ましくは、Ｌ２≧２Ｌ３となるように窪み部２３を設け、より好ましくは、Ｌ２≧３Ｌ３となるように窪み部２３を設ける。また、上記のように、ΔＷ≧ｔとなっているので、Ｌ２は、ステータヨーク２６側の端を始点とした場合に、最大の長さとして、Ｗ３−ｔ＝Ｗ１となる位置まで引き伸ばすことができる。   The slot part 24 is an area into which the coil part 40 is inserted. The slot portion 24 includes an opening 28 that is open to the rotor side, teeth-side inner walls 25 and 27, and a stator yoke-side inner wall 21. As shown in FIG. 2, the length of the side in the radial direction when the slot portion 24 is viewed from above is L1, and the length of the side constituting the depression 23 is L2. And when the length of the side which comprises the stator yoke side inner wall part 21 is set to L3, L1 has sufficient length compared with L3. Therefore, L2> L3. Preferably, the recess 23 is provided so that L2 ≧ 2L3, and more preferably, the recess 23 is provided so that L2 ≧ 3L3. Further, since ΔW ≧ t as described above, L2 can be extended to a position where W3−t = W1 as the maximum length when the end on the stator yoke 26 side is the starting point. it can.

図３は、コイル部４０の斜視図である。図１〜図２と同様の要素について同一の符号を付し、詳細な説明は省略する。コイル部４０は、ステータコア２０全体に巻回されるセグメントコイルを構成する部材であり、略Ｕ字型に成形される。コイル部４０は、脚部４４，４５と、端部４２，４３と、接続部４６とを含んで構成される。   FIG. 3 is a perspective view of the coil unit 40. Elements similar to those in FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof is omitted. The coil portion 40 is a member constituting a segment coil wound around the entire stator core 20 and is formed in a substantially U shape. The coil portion 40 includes leg portions 44 and 45, end portions 42 and 43, and a connection portion 46.

脚部４４，４５は、スロット部２４に挿入される部分である。脚部４４，４５のそれぞれは、ステータコア２０の周方向に沿って、所定のピッチで配置されている複数のスロット部２４の中の所定の２つのスロット部２４に挿入される。端部４２，４３は、１つのコイル部４０と他のコイル部４０とを接続される部分である。端部４２，４３は、図示されていない捻り機によって所定方向に捻られた後、他のコイル部４０の端部４２，４３と接続される。接続部４６は、脚部４４，４５を接続し、略山型の形状を有する。   The leg portions 44 and 45 are portions that are inserted into the slot portion 24. Each of the leg portions 44 and 45 is inserted into two predetermined slot portions 24 among the plurality of slot portions 24 arranged at a predetermined pitch along the circumferential direction of the stator core 20. The end portions 42 and 43 are portions where one coil portion 40 and another coil portion 40 are connected. The end portions 42 and 43 are twisted in a predetermined direction by a twisting machine (not shown) and then connected to the end portions 42 and 43 of the other coil portion 40. The connecting portion 46 connects the leg portions 44 and 45 and has a substantially mountain shape.

再び図１、図２に戻って、絶縁紙３０は、シート形状の絶縁部材である。絶縁紙３０は、コイル部４０がスロット部２４に挿入された際に、コイル部４０の脚部４４，４５を囲むように覆い、ステータコア２０と、コイル部４０とを絶縁させる機能を有する。絶縁紙３０は、スロット部２４の平面図上の周囲長よりも長い寸法を有し、コイル部４０の周りを覆ってスロット部２４に挿入すると重なり部が生じる。   1 and 2 again, the insulating paper 30 is a sheet-shaped insulating member. The insulating paper 30 has a function of covering the leg portions 44 and 45 of the coil portion 40 and insulating the stator core 20 and the coil portion 40 when the coil portion 40 is inserted into the slot portion 24. The insulating paper 30 has a dimension that is longer than the perimeter of the slot portion 24 on the plan view.

図４は、絶縁紙３０の平面展開図である矩形紙３５の図である。図５は、絶縁紙３０の斜視図である。図１〜図３と同様の要素について同一の符号を付し、詳細な説明は省略する。矩形紙３５は、単層部３３と、その両端である積層部３４を含んで構成される。矩形紙３５を筒状に丸め、その両端を重ねて、絶縁紙３０を生成する。なお、図５に示されるように絶縁紙３０の厚みをｔとする。   FIG. 4 is a diagram of a rectangular paper 35 that is a plan development view of the insulating paper 30. FIG. 5 is a perspective view of the insulating paper 30. The same elements as those in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted. The rectangular paper 35 includes a single layer portion 33 and a laminated portion 34 that is both ends thereof. The rectangular paper 35 is rounded into a cylindrical shape, and both ends thereof are overlapped to generate the insulating paper 30. As shown in FIG. 5, the thickness of the insulating paper 30 is t.

重なり部３２は、矩形紙３５の両端である積層部３４を重ねて形成される部分である。重なり部３２は、矩形紙３５の積層部３４を重ねているので、その厚みが絶縁紙３０の他の部分と比べて２倍の２ｔとなる。したがって、絶縁紙３０をそのままスロット部２４に配置すると、重なり部３２は、スロット部２４の内周側に向けて、他の部分に比べ厚さｔ分だけ出っ張ることとなる。   The overlapping portion 32 is a portion formed by overlapping the laminated portions 34 that are both ends of the rectangular paper 35. Since the overlapping portion 32 overlaps the laminated portion 34 of the rectangular paper 35, its thickness is 2t, which is twice that of the other portions of the insulating paper 30. Therefore, when the insulating paper 30 is arranged in the slot portion 24 as it is, the overlapping portion 32 protrudes toward the inner peripheral side of the slot portion 24 by a thickness t as compared with other portions.

次に、回転電機１０の製造工程、特に、ステータの製造工程について説明する。図６は、ステータコア２０のスロット部２４にコイル部４０を挿入している様子を示す図である。図７は、回転電機１０の製造工程を示す図である。図１〜図５と同様の要素について同一の符号を付し、詳細な説明は省略する。まず、矩形紙３５を筒状に丸めて、その両端の積層部３４を重ねて、重なり部３２を有する絶縁紙３０を生成する（Ｓ２）。   Next, a manufacturing process of the rotating electrical machine 10, particularly a manufacturing process of the stator will be described. FIG. 6 is a diagram illustrating a state where the coil portion 40 is inserted into the slot portion 24 of the stator core 20. FIG. 7 is a diagram illustrating a manufacturing process of the rotating electrical machine 10. Elements similar to those in FIGS. 1 to 5 are denoted by the same reference numerals, and detailed description thereof is omitted. First, the rectangular paper 35 is rolled into a cylindrical shape, and the laminated portions 34 at both ends thereof are overlapped to generate the insulating paper 30 having the overlapping portion 32 (S2).

そして、上記のように、この重なり部３２をティース部２２の窪み部２３に収納できるように絶縁紙３０の向きを調整し、スロット部２４の上面側または下面側から絶縁紙３０を配置する（Ｓ４）。そうすると、重なり部３２は、上記のように、その厚みが２ｔであるが、上記のように窪み部２３の幅ΔＷは、ΔＷ≧ｔであり、窪み部２３に収納できる。したがって、重なり部３２が、スロット部２４の内周側へ出っ張ることはない。また、上記のように、Ｗ３−ΔＷ≧Ｗ１であるので、重なり部３２をティース側内壁部２５，２７に配置しても回転電機１０の性能を確保することができる。   Then, as described above, the orientation of the insulating paper 30 is adjusted so that the overlapping portion 32 can be stored in the recessed portion 23 of the tooth portion 22, and the insulating paper 30 is disposed from the upper surface side or the lower surface side of the slot portion 24 ( S4). Then, the thickness of the overlapping portion 32 is 2t as described above, but the width ΔW of the recessed portion 23 is ΔW ≧ t as described above and can be stored in the recessed portion 23. Therefore, the overlapping portion 32 does not protrude toward the inner peripheral side of the slot portion 24. Further, as described above, since W3−ΔW ≧ W1, the performance of the rotating electrical machine 10 can be ensured even if the overlapping portion 32 is disposed on the teeth side inner wall portions 25 and 27.

次に、必要があれば、スロット部２４の上面から出ている絶縁紙３０の端部の一方側に、図示されていない所定温度に加熱された加熱成形器を圧接し、加熱成型加工することによって、絶縁紙３０の端部をラッパ状に拡開する（Ｓ６）。ここで、上記の拡開の際に、絶縁紙３０は、ステータコア２０の端面とスロット部２４の内壁面で形成される角部に押し付けられる。そのため、その角部に押し付けられた部分は、他の部分に比べて厚さが薄くなってしまう。したがって、絶縁紙３０の絶縁性能の劣化を抑制するため、絶縁紙３０の他方の端部をスロット部２４の底面側から所定の高さだけ押し上げる（Ｓ８）。   Next, if necessary, a thermoformer heated to a predetermined temperature (not shown) is pressed on one side of the end portion of the insulating paper 30 protruding from the upper surface of the slot portion 24, and is heat-molded. Thus, the end of the insulating paper 30 is expanded in a trumpet shape (S6). Here, at the time of the above expansion, the insulating paper 30 is pressed against a corner portion formed by the end surface of the stator core 20 and the inner wall surface of the slot portion 24. Therefore, the portion pressed against the corner is thinner than the other portion. Therefore, in order to suppress the deterioration of the insulating performance of the insulating paper 30, the other end of the insulating paper 30 is pushed up from the bottom surface side of the slot portion 24 by a predetermined height (S8).

ここで、絶縁紙３０の重なり部３２は、ティース側内壁部２５，２７に沿って配置されている。そして、上記のように、Ｌ２は、少なくともＬ１よりも長いので、重なり部３２をステータヨーク側内壁部２１に配置する場合に比べて、重なり部３２の重なり量を大きくとることができる。したがって、モータが小型化になった場合において、上記の拡開工程（Ｓ６）の際にも重なり部３２の重なり量は十分に確保され、絶縁紙３０の絶縁性能を確保することができる。   Here, the overlapping portion 32 of the insulating paper 30 is disposed along the teeth side inner wall portions 25 and 27. As described above, since L2 is at least longer than L1, the overlapping amount of the overlapping portion 32 can be made larger than when the overlapping portion 32 is disposed on the stator yoke side inner wall portion 21. Therefore, when the motor is downsized, the overlapping amount of the overlapping portion 32 is sufficiently ensured even in the above-described expansion step (S6), and the insulating performance of the insulating paper 30 can be ensured.

次に、円筒状に形成される絶縁紙３０のラッパ状の拡開される端部側から、略Ｕ字形状のコイル部４０が挿入される（Ｓ１０）。この際、コイル部４０の脚部４４，４５は、ステータコア２０の周方向に沿って所定のピッチで配置されている複数のスロット部２４の中の所定の２つのスロット部２４に配置される。   Next, the substantially U-shaped coil part 40 is inserted from the trumpet-shaped end part side of the insulating paper 30 formed in a cylindrical shape (S10). At this time, the leg portions 44 and 45 of the coil portion 40 are arranged in two predetermined slot portions 24 among the plurality of slot portions 24 arranged at a predetermined pitch along the circumferential direction of the stator core 20.

そして、挿入されたコイル部４０は、他のコイル部４０と電気導通させるために、その端部４２，４３を互いに反対方向に折り曲げる。そして異なるコイル部４０の端部４２，４３同士を接合し、全体でステータコイルを形成する（Ｓ１２）。その後、回転電機１０の組立に必要な周知の各工程を経て、回転電機１０が製造される。   And the inserted coil part 40 bends the edge parts 42 and 43 in the mutually opposite direction in order to make the other coil part 40 electrical conduction. And the end parts 42 and 43 of the different coil part 40 are joined, and a stator coil is formed as a whole (S12). Thereafter, the rotating electrical machine 10 is manufactured through known steps necessary for assembling the rotating electrical machine 10.

本発明に係る回転電機におけるスロット部周辺の様子を示す図である。It is a figure which shows the mode of the slot part periphery in the rotary electric machine which concerns on this invention. 図１におけるスロット部周辺の平面図である。It is a top view of the slot part periphery in FIG. 本発明に係る回転電機を構成するコイルの斜視図である。It is a perspective view of the coil which comprises the rotary electric machine which concerns on this invention. 絶縁紙の平面展開図である。It is a plane development view of insulating paper. 絶縁紙の斜視図である。It is a perspective view of insulating paper. ステータコアのスロット部にコイルを挿入している様子を示す図である。It is a figure which shows a mode that the coil is inserted in the slot part of a stator core. 本発明に係る回転電機の製造工程を示す図である。It is a figure which shows the manufacturing process of the rotary electric machine which concerns on this invention.

符号の説明Explanation of symbols

１０ 回転電機、２０ ステータコア、２１ ステータヨーク側内壁部、２２ ティース部、２３ 窪み部、２４ スロット部、２５，２７ ティース側内壁部、２６ ステータヨーク、２８ 開口部、２９ 先端部、３０ 絶縁紙、３２ 重なり部、３３ 単層部、３４ 積層部、３５ 矩形紙、４０ コイル部、４２，４３ 端部、４４，４５ 脚部、４６ 接続部。   DESCRIPTION OF SYMBOLS 10 Rotating electric machine, 20 Stator core, 21 Stator yoke side inner wall part, 22 Teeth part, 23 Recess part, 24 Slot part, 25, 27 Teeth side inner wall part, 26 Stator yoke, 28 Opening part, 29 Tip part, 30 Insulating paper, 32 Overlap part, 33 Single layer part, 34 Laminate part, 35 Rectangular paper, 40 Coil part, 42, 43 End part, 44, 45 Leg part, 46 Connection part.

Claims (3)

複数のティース部と、隣接するティース部の間に形成されるスロット部と、を有するステータコアと、
スロット部に配置されるコイルと、
スロット部の内壁に沿ってコイルの周囲に配置されて、両端を重ねて形成される重なり部を有する絶縁紙と、
を備える回転電機であって、
重なり部は、スロット部のティース側の内壁に対向させて配置されることを特徴とする回転電機。 A stator core having a plurality of tooth portions and a slot portion formed between adjacent tooth portions;
A coil disposed in the slot portion;
Insulating paper having an overlapping portion that is disposed around the coil along the inner wall of the slot portion and is formed by overlapping both ends;
A rotating electric machine comprising:
The rotating electrical machine is characterized in that the overlapping portion is disposed to face the inner wall of the slot portion on the teeth side. 請求項１に記載の回転電機において、
ティース部は、重なり部が配置される窪みを有することを特徴とする回転電機。 In the rotating electrical machine according to claim 1,
The tooth portion has a recess in which the overlapping portion is disposed. 請求項２に記載の回転電機において、
ティース部は、窪みを設ける前の幅がステータコアの外周方向から内周方向に向けて先細りとなりステータコアの外周側の幅寸法が大きくステータコアの内周側の幅寸法が小さい形状を有し、
窪みは、ティース部の幅寸法が大きなステータコアの外周側に設けられることを特徴とする回転電機。 The rotating electrical machine according to claim 2,
The teeth portion has a shape in which the width before providing the recesses is tapered from the outer peripheral direction of the stator core toward the inner peripheral direction, the width dimension on the outer peripheral side of the stator core is large, and the width dimension on the inner peripheral side of the stator core is small,
The dimple is provided on the outer peripheral side of the stator core having a large width of the tooth portion.
JP2007315527A 2007-12-06 2007-12-06 Rotating electric machine Pending JP2009142059A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102270889A (en) * 2011-06-21 2011-12-07 裴亚军 Armature in starter
US9251926B2 (en) 2012-10-05 2016-02-02 Toyota Jidosha Kabushiki Kaisha Collective conductor and method for producing collective conductor
JPWO2017098917A1 (en) * 2015-12-08 2018-04-26 三菱電機株式会社 Rotating machine armature
CN109639010A (en) * 2017-10-05 2019-04-16 本田技研工业株式会社 The stator and insulating paper of rotating electric machine
JP2019092340A (en) * 2017-11-16 2019-06-13 三菱電機株式会社 Armature
JP2022051842A (en) * 2017-11-16 2022-04-01 三菱電機株式会社 Armature
WO2024115374A1 (en) * 2022-12-02 2024-06-06 Jaguar Land Rover Limited Stator core

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102270889A (en) * 2011-06-21 2011-12-07 裴亚军 Armature in starter
US9251926B2 (en) 2012-10-05 2016-02-02 Toyota Jidosha Kabushiki Kaisha Collective conductor and method for producing collective conductor
JPWO2017098917A1 (en) * 2015-12-08 2018-04-26 三菱電機株式会社 Rotating machine armature
CN109639010A (en) * 2017-10-05 2019-04-16 本田技研工业株式会社 The stator and insulating paper of rotating electric machine
JP2019092340A (en) * 2017-11-16 2019-06-13 三菱電機株式会社 Armature
JP2022051842A (en) * 2017-11-16 2022-04-01 三菱電機株式会社 Armature
JP7229402B2 (en) 2017-11-16 2023-02-27 三菱電機株式会社 Armature manufacturing method and armature
WO2024115374A1 (en) * 2022-12-02 2024-06-06 Jaguar Land Rover Limited Stator core

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