JP2016032392A - Stator of dynamo-electric apparatus - Google Patents

Stator of dynamo-electric apparatus Download PDF

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JP2016032392A
JP2016032392A JP2014154715A JP2014154715A JP2016032392A JP 2016032392 A JP2016032392 A JP 2016032392A JP 2014154715 A JP2014154715 A JP 2014154715A JP 2014154715 A JP2014154715 A JP 2014154715A JP 2016032392 A JP2016032392 A JP 2016032392A
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stator
neutral point
point bus
coil
axial direction
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絢子 長谷川
Ayako Hasegawa
絢子 長谷川
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

PROBLEM TO BE SOLVED: To enhance bondability of a three-phase coil and a neutral point bus bar.SOLUTION: When bonding neutral point bus bars 42U, 42V, 42W and a cuff support component 31-1 by a bonding member 44 to produce an integral unit component 50, positioning of the neutral point bus bars 42U, 42V, 42W and segment coils 22U, 22V, 22W, in the circumferential direction and axial direction of the stator, can be carried out with the same component. Consequently, relative positional accuracy of the neutral point bus bars 42U, 42V, 42W and segment coils 22U, 22V, 22W can be enhanced easily, and variation in the welding points of neutral point bus bars 42U, 42V, 42W and segment coils 22U, 22V, 22W can be suppressed.SELECTED DRAWING: Figure 1

Description

本発明は、回転電機のステータに関し、特に、三相のコイルが中性点バスバにより接続されたステータに関する。   The present invention relates to a stator of a rotating electrical machine, and more particularly to a stator in which three-phase coils are connected by a neutral point bus bar.

下記特許文献１の回転電機のステータでは、ステータコアの軸方向端面に設置された樹脂部品により三相のコイルの位置決めを行っている。   In the stator of a rotating electrical machine disclosed in Patent Document 1 below, positioning of a three-phase coil is performed by a resin component installed on an axial end surface of the stator core.

特開２００３−１４３７９１号公報JP 2003-143791 A

三相のコイルを中性点バスバにより接続する際には、三相のコイルの位置決めだけでなく、中性点バスバの位置決めも行う必要がある。専用の治具により中性点バスバの位置決めを行う場合は、コイルの位置決めと中性点バスバの位置決めが別部品で行われるため、コイルと中性点バスバの相対位置精度にばらつきが生じやすくなる。その結果、三相のコイルと中性点バスバとの接合性が低下しやすくなる。   When connecting a three-phase coil with a neutral point bus bar, it is necessary to position not only the three-phase coil but also the neutral point bus bar. When the neutral point bus bar is positioned with a dedicated jig, the coil positioning and the neutral point bus bar positioning are performed as separate parts, so the relative positional accuracy between the coil and the neutral point bus bar tends to vary. . As a result, the bondability between the three-phase coil and the neutral point bus bar is likely to deteriorate.

本発明に係る回転電機のステータは、三相のコイルと中性点バスバとの接合性を向上させることを目的とする。   The stator of the rotating electrical machine according to the present invention is intended to improve the bondability between the three-phase coil and the neutral point bus bar.

本発明に係る回転電機のステータは、上述した目的を達成するために以下の手段を採った。   The stator of the rotating electrical machine according to the present invention employs the following means in order to achieve the above-described object.

本発明に係る回転電機のステータは、ステータコアと、ステータコアに巻装された三相のコイルと、三相のコイルのそれぞれに接続された中性点バスバと、ステータコアの軸方向端面に設置されたコイル位置決め用のカフサ部品であって、コイルにおけるステータコアより軸方向外側に張り出したコイルエンド部が接触するカフサ部品と、を備え、中性点バスバとカフサ部品が一体であることを要旨とする。   A stator of a rotating electrical machine according to the present invention is installed on a stator core, a three-phase coil wound around the stator core, a neutral point bus bar connected to each of the three-phase coils, and an axial end surface of the stator core. It is a cuff part for positioning a coil, and a cuff part that comes into contact with a coil end portion projecting outward in the axial direction from the stator core of the coil is provided, and the gist is that the neutral point bus bar and the cuff part are integrated.

本発明によれば、中性点バスバとカフサ部品が一体であることで、三相のコイルの位置決めと中性点バスバの位置決めを同一部品で行うことができ、三相のコイルと中性点バスバの相対位置精度を向上させることができる。その結果、三相のコイルと中性点バスバとの接合性を向上させることができる。   According to the present invention, since the neutral point bus bar and the cuff part are integrated, the positioning of the three-phase coil and the neutral point bus bar can be performed with the same component. The relative position accuracy of the bus bar can be improved. As a result, the bondability between the three-phase coil and the neutral point bus bar can be improved.

本発明の実施形態に係るステータの全体構成例を示す斜視図である。It is a perspective view which shows the example of whole structure of the stator which concerns on embodiment of this invention. ステータ軸方向一端部の構成例を示す図である。It is a figure which shows the structural example of a stator axial direction one end part. ステータ軸方向他端部の構成例を示す図である。It is a figure which shows the structural example of a stator axial direction other end part. ユニット部品の構成例を示す図である。It is a figure which shows the structural example of a unit component.

以下、本発明を実施するための形態（以下実施形態という）を図面に従って説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

図１〜４は、本発明の実施形態に係る回転電機のステータの概略構成を示す図である。図１はステータ全体構成の斜視図を示し、図２はステータ軸方向一端部の構成例を示し、図３はステータ軸方向他端部の構成例を示し、図４はユニット部品５０の構成例を示す。図１〜３では、ステータ周方向に関してステータコア２１及びセグメントコイル２２Ｕ，２２Ｖ，２２Ｗの構成の図示を一部省略しているが、図示を省略している残りの部分の構成は、図示している部分と同様の構成である。   1-4 is a figure which shows schematic structure of the stator of the rotary electric machine which concerns on embodiment of this invention. 1 shows a perspective view of the overall configuration of the stator, FIG. 2 shows a configuration example of one end portion in the stator axial direction, FIG. 3 shows a configuration example of the other end portion in the stator axial direction, and FIG. Indicates. 1-3, the illustration of the configuration of the stator core 21 and the segment coils 22U, 22V, and 22W is partially omitted with respect to the stator circumferential direction, but the configuration of the remaining portions that are not shown is illustrated. The configuration is the same as that of the portion.

ステータは、ステータコア２１と、ステータコア２１に巻装された三相のセグメントコイル２２Ｕ，２２Ｖ，２２Ｗと、三相のセグメントコイル２２Ｕ，２２Ｖ，２２Ｗの一端部同士を中性点として結合する、つまり三相のセグメントコイル２２Ｕ，２２Ｖ，２２ＷをＹ結線（スター結線）するための中性点バスバ４２Ｕ，４２Ｖ，４２Ｗと、ステータコア２１のステータ軸方向一端面及び他端面に設置された一対のカフサ部品３１−１，３１−２とを含んで構成される。ステータコア２１は、ステータ周方向に沿って延びる環状のヨーク２３と、ヨーク２３の内周面よりステータ径方向内側（図示しないロータ側）へ突出する複数のティース２４とを含む。複数のティース２４はステータ周方向に互いに間隔をおいて（等間隔で）配置されている。ステータ周方向に隣接するティース２４間にスロット２５が形成され、複数のスロット２５がステータ周方向に互いに間隔をおいて（等間隔で）配置されている。各ティース２４及び各スロット２５は、ステータ軸方向に沿って延びている。   The stator is coupled with the stator core 21, the three-phase segment coils 22U, 22V, and 22W wound around the stator core 21 and the one end portions of the three-phase segment coils 22U, 22V, and 22W as neutral points. Neutral point bus bars 42U, 42V, 42W for Y-connection (star connection) of the phase segment coils 22U, 22V, 22W, and a pair of cuff parts 31 installed on one end surface and the other end surface of the stator core 21 in the stator axial direction -1, 31-2. The stator core 21 includes an annular yoke 23 that extends along the circumferential direction of the stator, and a plurality of teeth 24 that protrude from the inner circumferential surface of the yoke 23 to the inside in the stator radial direction (the rotor side not shown). The plurality of teeth 24 are arranged at regular intervals (equal intervals) in the stator circumferential direction. Slots 25 are formed between teeth 24 adjacent in the stator circumferential direction, and a plurality of slots 25 are arranged at regular intervals (equally spaced) in the stator circumferential direction. Each tooth 24 and each slot 25 extends along the stator axial direction.

コイル位置決め用のカフサ部品３１−１は、図２に示すように、ステータコア２１のステータ軸方向一端面と接触する状態でステータコア２１に接着されており、カフサ部品３１−２は、図３に示すように、ステータコア２１のステータ軸方向他端面と接触する状態でステータコア２１に接着されている。ステータコア２１とカフサ部品３１−１，３１−２の接着については、例えばワニス等の絶縁性を有する接着材料により行うことが可能であるが、他の接着方法を用いることも可能である。   As shown in FIG. 2, the coil positioning cuff member 31-1 is bonded to the stator core 21 in contact with one end surface in the stator axial direction of the stator core 21, and the cuff member 31-2 is shown in FIG. As described above, the stator core 21 is bonded to the stator core 21 so as to be in contact with the other end surface in the stator axial direction. The stator core 21 and the cuff parts 31-1 and 31-2 can be bonded to each other with an insulating adhesive material such as varnish, but other bonding methods can also be used.

図２，４に示すように、カフサ部品３１−１においては、複数（ティース２４と同数）のサポート部３４−１がステータ周方向に互いに間隔をおいて（ティース２４と等間隔で）配置されている。各サポート部３４−１は各ティース２４のステータ軸方向一端面と接触する。各サポート部３４−１のステータ径方向内側端部同士は内周側環状部材３６−１により連結され、各サポート部３４−１のステータ径方向外側端部同士は外周側環状部材３７−１により連結されている。ステータ周方向に隣接するサポート部３４−１間に挿通穴３５−１が形成され、複数（スロット２５と同数）の挿通穴３５−１がステータ周方向に互いに間隔をおいて（スロット２５と等間隔で）配置されている。ステータ軸方向において各挿通穴３５−１は各スロット２５に面する。各サポート部３４−１のステータ軸方向一端部には、凸曲面３８−１が形成されている。   As shown in FIGS. 2 and 4, in the cuff member 31-1, a plurality (the same number as the teeth 24) of the support portions 34-1 are arranged at regular intervals (equally spaced from the teeth 24) in the stator circumferential direction. ing. Each support portion 34-1 is in contact with one end surface of each tooth 24 in the stator axial direction. The stator radial inner ends of the support portions 34-1 are connected to each other by an inner peripheral side annular member 36-1, and the stator radial direction outer ends of the support portions 34-1 are connected to each other by an outer peripheral side annular member 37-1. It is connected. Insertion holes 35-1 are formed between the support portions 34-1 adjacent to each other in the stator circumferential direction, and a plurality of (the same number as the slots 25) insertion holes 35-1 are spaced apart from each other in the circumferential direction of the stator (such as the slots 25). Arranged at intervals). Each insertion hole 35-1 faces each slot 25 in the stator axial direction. A convex curved surface 38-1 is formed at one end of the support portion 34-1 in the stator axial direction.

カフサ部品３１−２も、カフサ部品３１−１と同様の構成であり、複数（ティース２４と同数）のサポート部３４−２がステータ周方向に互いに間隔をおいて（ティース２４と等間隔で）配置されており、各サポート部３４−２が各ティース２４のステータ軸方向他端面と接触する。ステータ周方向に隣接するサポート部３４−２間に挿通穴が形成され、複数（スロット２５と同数）の挿通穴がステータ周方向に互いに間隔をおいて（スロット２５と等間隔で）配置されている。ステータ軸方向においてカフサ部品３１−２の各挿通穴は各スロット２５に面する。各サポート部３４−２のステータ軸方向他端部には、凸曲面３８−２が形成されている。   The cuff member 31-2 has the same configuration as the cuff member 31-1, and a plurality (the same number as the teeth 24) of support portions 34-2 are spaced apart from each other in the stator circumferential direction (equally spaced from the teeth 24). It arrange | positions and each support part 34-2 contacts the stator axial direction other end surface of each teeth 24. As shown in FIG. An insertion hole is formed between the support portions 34-2 adjacent in the stator circumferential direction, and a plurality (the same number as the slots 25) of the insertion holes are spaced apart from each other in the stator circumferential direction (equally spaced from the slot 25). Yes. Each insertion hole of the cuff member 31-2 faces each slot 25 in the stator axial direction. A convex curved surface 38-2 is formed at the other end in the stator axial direction of each support portion 34-2.

セグメントコイル２２Ｕ，２２Ｖ，２２Ｗは、カフサ部品３１−２の挿通穴、ステータコア２１のスロット２５、及びカフサ部品３１−１の挿通穴３５−１を通って、各ティース２４に装着されている。セグメントコイル２２Ｕは、ステータ周方向位置の異なるスロット２５を通ってステータコア２１（ティース２４及びヨーク２３）よりステータ軸方向一端側（軸方向外側）に張り出したコイルエンド部２２Ｕａ同士がステータ周方向に曲げ加工されて接合されている。同様に、セグメントコイル２２Ｖは、ステータ周方向位置の異なるスロット２５を通ってステータコア２１よりステータ軸方向一端側に張り出したコイルエンド部２２Ｖａ同士がステータ周方向に曲げ加工されて接合され、セグメントコイル２２Ｗは、ステータ周方向位置の異なるスロット２５を通ってステータコア２１よりステータ軸方向一端側に張り出したコイルエンド部２２Ｗａ同士がステータ周方向に曲げ加工されて接合されている。   The segment coils 22U, 22V, and 22W are attached to the teeth 24 through the insertion holes of the cuff part 31-2, the slots 25 of the stator core 21, and the insertion holes 35-1 of the cuff part 31-1. In the segment coil 22U, coil end portions 22Ua protruding from the stator core 21 (the teeth 24 and the yoke 23) to one end side in the stator axial direction (axially outside) through the slots 25 having different stator circumferential positions are bent in the stator circumferential direction. Processed and joined. Similarly, in the segment coil 22V, coil end portions 22Va projecting from the stator core 21 to one end side in the stator axial direction through slots 25 having different stator circumferential positions are bent and joined in the stator circumferential direction, and the segment coil 22W is joined. The coil end portions 22Wa projecting from the stator core 21 to one end side in the stator axial direction through the slots 25 having different stator circumferential positions are bent and joined in the stator circumferential direction.

セグメントコイル２２Ｕ，２２Ｖ，２２Ｗの曲げ加工の際には、コイルエンド部２２Ｕａ，２２Ｖａ，２２Ｗａがサポート部３４−１の凸曲面３８−１に当接することで、コイルエンド部２２Ｕａ，２２Ｖａ，２２Ｗａがステータコア２１（ティース２４）の角部に接触するのを防止することができる。同様に、ステータコア２１よりステータ軸方向他端側（軸方向外側）に張り出したコイルエンド部２２Ｕｂ，２２Ｖｂ，２２Ｗｂがサポート部３４−２の凸曲面３８−２に当接することで、コイルエンド部２２Ｕｂ，２２Ｖｂ，２２Ｗｂがステータコア２１の角部に接触するのを防止することができる。これによって、セグメントコイル２２Ｕ，２２Ｖ，２２Ｗの損傷を防止することができる。   When bending the segment coils 22U, 22V, and 22W, the coil end portions 22Ua, 22Va, and 22Wa come into contact with the convex curved surface 38-1 of the support portion 34-1, so that the coil end portions 22Ua, 22Va, and 22Wa It can prevent contacting with the corner | angular part of the stator core 21 (tooth 24). Similarly, coil end portions 22Ub, 22Vb, and 22Wb that protrude from the stator core 21 to the other end side in the axial direction of the stator (axially outer side) abut on the convex curved surface 38-2 of the support portion 34-2, so that the coil end portion 22Ub , 22Vb, 22Wb can be prevented from contacting the corners of the stator core 21. As a result, the segment coils 22U, 22V, and 22W can be prevented from being damaged.

セグメントコイル２２Ｕ，２２Ｖ，２２Ｗの接合後は、コイルエンド部２２Ｕａ，２２Ｖａ，２２Ｗａがサポート部３４−１の凸曲面３８−１に接触し、コイルエンド部２２Ｕｂ，２２Ｖｂ，２２Ｗｂがサポート部３４−２の凸曲面３８−２に接触する。これによって、ステータコア２１に対するセグメントコイル２２Ｕ，２２Ｖ，２２Ｗのステータ周方向及び軸方向に関する位置決めが行われる。セグメントコイル２２Ｕ，２２Ｖ，２２Ｗには、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗが電気的に接続される接続端子３２Ｕ，３２Ｖ，３２Ｗがそれぞれ設けられている。接続端子３２Ｕ，３２Ｖ，３２Ｗは、ステータ周方向に互いに間隔をおいて配置され、ステータ軸方向に沿って延びている。   After joining the segment coils 22U, 22V, 22W, the coil end portions 22Ua, 22Va, 22Wa are in contact with the convex curved surface 38-1 of the support portion 34-1, and the coil end portions 22Ub, 22Vb, 22Wb are the support portion 34-2. The convex curved surface 38-2. Thus, the positioning of the segment coils 22U, 22V, and 22W with respect to the stator core 21 in the stator circumferential direction and the axial direction is performed. The segment coils 22U, 22V, and 22W are provided with connection terminals 32U, 32V, and 32W, respectively, to which the neutral point bus bars 42U, 42V, and 42W are electrically connected. The connection terminals 32U, 32V, and 32W are spaced apart from each other in the circumferential direction of the stator and extend along the stator axial direction.

中性点バスバ４２Ｕ，４２Ｖ，４２Ｗは、三相のセグメントコイル２２Ｕ，２２Ｖ，２２Ｗのそれぞれと電気的に接続されている。セグメントコイル２２Ｕの接続端子３２Ｕと中性点バスバ４２Ｕが溶接により接合され、セグメントコイル２２Ｖの接続端子３２Ｖと中性点バスバ４２Ｖが溶接により接合され、セグメントコイル２２Ｗの接続端子３２Ｗと中性点バスバ４２Ｗが溶接により接合されている。これによって、三相のセグメントコイル２２Ｕ，２２Ｗ，２２ＶがＹ結線される。中性点バスバ４２Ｕ，４２Ｖ，４２Ｗは、接続端子以外は、例えば樹脂等の絶縁材料により導体部分が覆われている。   The neutral point bus bars 42U, 42V, and 42W are electrically connected to the three-phase segment coils 22U, 22V, and 22W, respectively. The connection terminal 32U of the segment coil 22U and the neutral point bus bar 42U are joined by welding, the connection terminal 32V of the segment coil 22V and the neutral point bus bar 42V are joined by welding, and the connection terminal 32W of the segment coil 22W and the neutral point bus bar 42W is joined by welding. As a result, the three-phase segment coils 22U, 22W, and 22V are Y-connected. The neutral point bus bars 42U, 42V, 42W are covered with an insulating material such as resin, for example, except for the connection terminals.

本実施形態では、図１，４に示すように、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗとカフサ部品３１−１を結合部材４４により結合して一体のユニット部品５０としている。図１，４に示すユニット部品５０の例では、結合部材４４がヨーク２３のステータ軸方向一端面上に配置され、ステータ周方向に沿って延びている。そして、結合部材４４のステータ軸方向一端部が中性点バスバ４２Ｕ，４２Ｖ，４２Ｗに連結され、結合部材４４のステータ軸方向他端部がカフサ部品３１−１の外周側環状部材３７−１に連結されている。ユニット部品５０におけるカフサ部品３１−１及び結合部材４４については、例えば樹脂等の絶縁材料により一体で構成することが可能である。この場合、３本の中性点バスバ４２Ｕ，４２Ｖ，４２Ｗは、結合部材４４にモールド成形されており、結合部材４４の内部にて互いに電気的に接続され、中性点が形成されている。   In this embodiment, as shown in FIGS. 1 and 4, neutral point bus bars 42 </ b> U, 42 </ b> V, 42 </ b> W and a cuff member 31-1 are coupled by a coupling member 44 to form an integral unit component 50. In the example of the unit component 50 shown in FIGS. 1 and 4, the coupling member 44 is disposed on one end surface in the stator axial direction of the yoke 23 and extends along the stator circumferential direction. Then, one end of the coupling member 44 in the stator axial direction is connected to the neutral point bus bars 42U, 42V, and 42W, and the other end of the coupling member 44 in the stator axial direction is connected to the outer circumferential side annular member 37-1 of the cuff member 31-1. It is connected. The cuff member 31-1 and the coupling member 44 in the unit component 50 can be integrally formed of an insulating material such as resin. In this case, the three neutral point bus bars 42U, 42V, 42W are molded to the coupling member 44, and are electrically connected to each other inside the coupling member 44 to form a neutral point.

中性点バスバ４２Ｕ，４２Ｖ，４２Ｗをセグメントコイル２２Ｕ，２２Ｖ，２２Ｗに溶接により接合する際には、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗとカフサ部品３１−１を一体のユニット部品５０とすることで、カフサ部品３１−１に対する中性点バスバ４２Ｕ，４２Ｖ，４２Ｗのステータ周方向、軸方向、及び径方向に関する位置決めが行われる。そのため、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗの位置決めを行うための専用の治具が不要となる。さらに、コイルエンド部２２Ｕａ，２２Ｖａ，２２Ｗａがカフサ部品３１−１のサポート部３４−１に接触することで、カフサ部品３１−１に対するセグメントコイル２２Ｕ，２２Ｖ，２２Ｗのステータ周方向及び軸方向に関する位置決めが行われる。   When the neutral point bus bars 42U, 42V, 42W are joined to the segment coils 22U, 22V, 22W by welding, the neutral point bus bars 42U, 42V, 42W and the cuff part 31-1 are integrated into the unit part 50. Thus, the neutral point bus bars 42U, 42V, and 42W are positioned with respect to the cuff member 31-1 with respect to the stator circumferential direction, the axial direction, and the radial direction. This eliminates the need for a dedicated jig for positioning the neutral point bus bars 42U, 42V, and 42W. Further, when the coil end portions 22Ua, 22Va, and 22Wa are in contact with the support portion 34-1 of the cuffer component 31-1, positioning of the segment coils 22U, 22V, and 22W in the stator circumferential direction and the axial direction with respect to the cuffer component 31-1. Is done.

このように、本実施形態によれば、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗとカフサ部品３１−１を一体部品とすることで、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗ及びセグメントコイル２２Ｕ，２２Ｖ，２２Ｗのステータ周方向及び軸方向に関する位置決めを同一部品で行うことができる。したがって、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗとセグメントコイル２２Ｕ，２２Ｖ，２２Ｗの相対位置精度を容易に向上させることができ、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗとセグメントコイル２２Ｕ，２２Ｖ，２２Ｗ（接続端子３２Ｕ，３２Ｖ，３２Ｗ）との溶接箇所のばらつきを抑制することができる。その結果、中性点バスバ４２Ｕ，４２Ｖ，４２Ｗとセグメントコイル２２Ｕ，２２Ｖ，２２Ｗとの溶接による接合性を向上させることができ、溶接品質を向上させることができる。   Thus, according to this embodiment, the neutral point bus bars 42U, 42V, 42W and the segment coils 22U, 22V, Positioning in the circumferential direction and the axial direction of the stator of 22W can be performed with the same component. Therefore, the relative position accuracy of the neutral point bus bars 42U, 42V, 42W and the segment coils 22U, 22V, 22W can be easily improved, and the neutral point bus bars 42U, 42V, 42W and the segment coils 22U, 22V, 22W ( It is possible to suppress variations in the welding location with the connection terminals 32U, 32V, 32W). As a result, the weldability of the neutral point bus bars 42U, 42V, 42W and the segment coils 22U, 22V, 22W can be improved, and the welding quality can be improved.

以上、本発明を実施するための形態について説明したが、本発明はこうした実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲内において、種々なる形態で実施し得ることは勿論である。   As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to such embodiment at all, and it can implement with a various form in the range which does not deviate from the summary of this invention. Of course.

２１ ステータコア、２２Ｕ，２２Ｖ，２２Ｗ セグメントコイル、２２Ｕａ，２２Ｕｂ，２２Ｖａ，２２Ｖｂ，２２Ｗａ，２２Ｗｂ コイルエンド部、２３ ヨーク、２４ ティース、２５ スロット、３１−１，３１−２ カフサ部品、３２Ｕ，３２Ｖ，３２Ｗ 接続端子、３４−１，３４−２ サポート部、３５−１ 挿通穴、３６−１ 内周側環状部材、３７−１ 外周側環状部材、３８−１，３８−２ 凸曲面、４２Ｕ，４２Ｖ，４２Ｗ 中性点バスバ、４４ 結合部材、５０ ユニット部品。   21 Stator core, 22U, 22V, 22W Segment coil, 22Ua, 22Ub, 22Va, 22Vb, 22Wa, 22Wb Coil end part, 23 Yoke, 24 teeth, 25 slots, 31-1, 31-2 cuff parts, 32U, 32V, 32W Connection terminal, 34-1 and 34-2 support portion, 35-1 insertion hole, 36-1 inner circumferential side annular member, 37-1 outer circumferential side annular member, 38-1, 38-2 convex curved surface, 42U, 42V, 42W Neutral point bus bar, 44 coupling member, 50 unit parts.

Claims (1)

ステータコアと、
ステータコアに巻装された三相のコイルと、
三相のコイルのそれぞれに接続された中性点バスバと、
ステータコアの軸方向端面に設置されたコイル位置決め用のカフサ部品であって、コイルにおけるステータコアより軸方向外側に張り出したコイルエンド部が接触するカフサ部品と、
を備え、
中性点バスバとカフサ部品が一体である、回転電機のステータ。 A stator core;
A three-phase coil wound around a stator core;
A neutral point bus bar connected to each of the three-phase coils;
A cuffing part for positioning a coil installed on an axial end surface of the stator core, and a cuffing part that contacts a coil end portion projecting outward in the axial direction from the stator core in the coil;
With
A stator for a rotating electrical machine in which a neutral point bus bar and cuff parts are integrated.
JP2014154715A 2014-07-30 2014-07-30 Stator of dynamo-electric apparatus Pending JP2016032392A (en)

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