JP2006042574A - Coil of rotating electric machine - Google Patents

Coil of rotating electric machine Download PDF

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JP2006042574A
JP2006042574A JP2004223231A JP2004223231A JP2006042574A JP 2006042574 A JP2006042574 A JP 2006042574A JP 2004223231 A JP2004223231 A JP 2004223231A JP 2004223231 A JP2004223231 A JP 2004223231A JP 2006042574 A JP2006042574 A JP 2006042574A
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winding
flat wire
wound
axis
wire
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JP4371936B2 (en
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Kentaro Fukui
健太郎 福井
Takeo Fukuda
武雄 福田
Hirobumi Shin
博文 新
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Honda Motor Co Ltd
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  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To achieve orderly winding by preventing the floating of a flat wire when winding the flat wire around the winding section of an insulating member for covering the periphery of a core. <P>SOLUTION: The flat wire 14 of the innermost layer wound around the winding section 17 of an insulator 13 is wound in the same plane orthogonally crossing a winding axis A on second-fourth winding surfaces 17b-17d in first-forth winding surfaces 17a-17d, and is obliquely wound away from the plane in the direction of the winding axis A by 1 pitch equivalent to the height of the flat wire 14 on the remaining first winding surface 17a. In this case, the first winding surface 17a forms a first inclined surface 17e tapered in one direction of the winding axis A at one corner in two corners ranging with the fourth and second winding surfaces 17d, 17b, and a second inclined surface 17f tapered in the other direction of the winding axis A is formed at other corner, thus preventing the floating from the winding section 17 by the plane bending of the flat wire 14 when bending the flat wire 14 at the two corners, and achieving the orderly winding for increasing a space factor. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、鉄心の周囲を覆う絶縁部材の巻回部に平角線を複数層に重ねて巻回した回転電機のコイルに関する。   The present invention relates to a coil for a rotating electrical machine in which flat wires are wound in a plurality of layers around a winding portion of an insulating member that covers the periphery of an iron core.

かかる回転電機のコイルは、例えば下記特許文献１により公知である。この種のコイルの巻線は占積率を高めるべく矩形断面の平角線で構成されており、インシュレータの巻回部に螺旋状に巻回されている。
特開２００１−７８３７９号公報 Such a coil of a rotating electrical machine is known, for example, from Patent Document 1 below. The winding of this type of coil is composed of a rectangular wire with a rectangular cross section to increase the space factor, and is wound spirally around the winding portion of the insulator.
JP 2001-78379 A

ところで、インシュレータに平角線を螺旋状に巻回すると、捲き始めおよび捲き終わりに三角形の隙間が発生するため、占積率が低下したり２層目以降の巻回が不安定になったりする問題がある。そこで、インシュレータの４個の巻回面のうちの３個の巻回面において平角線を同一面内で水平に巻回し、残りの１個の巻回面において平角線を斜めに巻回して巻回軸方向に１ピッチ分移動させることが考えられる。   By the way, when a rectangular wire is spirally wound around an insulator, a triangular gap is generated at the beginning and end of the winding process, so that the space factor decreases and the winding after the second layer becomes unstable. There is. Therefore, a rectangular wire is wound horizontally on the same winding surface in three of the four winding surfaces of the insulator, and the rectangular wire is wound obliquely on the remaining one winding surface. It is conceivable to move one pitch in the direction of the rotation axis.

しかしながら、このような巻回方法を採用すると、平角線が前記１個の巻回面に入るときに水平状態から傾斜状態に折り曲げられ、平角線が前記１個の巻回面から出るときに傾斜状態から水平状態に折り曲げられることなる。この場合に丸線であれば何の問題も発生しないが、平角線を上述のように不自然に折り曲げると、折曲部で平角線がインシュレータの表面から浮き上がって整然とした巻回が崩れてしまう問題がある。   However, when such a winding method is employed, the flat wire is bent from the horizontal state to the inclined state when entering the one winding surface, and is inclined when the flat wire exits from the one winding surface. It will be bent from the state to the horizontal state. In this case, there is no problem if the wire is a round wire, but if the flat wire is bent unnaturally as described above, the flat wire will rise from the surface of the insulator at the bent portion, and the orderly winding will collapse. There's a problem.

本発明は前述の事情に鑑みてなされたもので、鉄心の周囲を覆う絶縁部材の巻回部に平角線を巻回する際に、その平角線の浮き上がりを防止して整然とした巻回を可能にすることを目的とする。   The present invention has been made in view of the above circumstances, and when winding a flat wire around a winding portion of an insulating member covering the periphery of an iron core, the flat wire can be prevented from being lifted up and orderly wound. The purpose is to.

上記目的を達成するために、請求項１に記載された発明によれば、鉄心の周囲を覆う絶縁部材の巻回部に平角線を複数層に重ねて巻回した回転電機のコイルであって、絶縁部材の巻回部は巻回軸に直交する断面が概ね方形状であり、最内層の平角線は巻回部の４個の巻回面のうちの３個の巻回面上で巻回軸に直交する同一の平面内で巻回され、残りの１個の巻回面上で該平角線の高さに相当する１ピッチだけ巻回軸方向に前記平面から離れるように斜めに巻回されるものにおいて、前記１個の巻回面が他の２個の巻回面に連なる２個の角部のうち、一方の角部に巻回軸の一方向にテーパする第１傾斜面を形成するとともに、他方の角部に巻回軸の他方向にテーパする第２傾斜面を形成したことを特徴とする回転電機のコイルが提案される。   In order to achieve the above object, according to the first aspect of the present invention, there is provided a coil for a rotating electrical machine in which a rectangular wire is wound in a plurality of layers on a winding portion of an insulating member covering the periphery of an iron core. In addition, the winding portion of the insulating member has a substantially rectangular cross section perpendicular to the winding axis, and the rectangular wire in the innermost layer is wound on three winding surfaces of the four winding surfaces of the winding portion. It is wound in the same plane perpendicular to the rotation axis, and is wound obliquely on the remaining one winding surface so as to be separated from the plane in the winding axis direction by one pitch corresponding to the height of the flat wire. The first inclined surface in which the one winding surface is tapered in one direction of the winding axis at one corner among the two corners connected to the other two winding surfaces. And a second inclined surface tapered in the other direction of the winding axis is formed at the other corner portion.

また請求項２に記載された発明によれば、請求項１の構成に加えて、前記第１、第２傾斜面が、巻回軸方向に１ピッチ毎に分割されていることを特徴とする回転電機のコイルが提案される。   According to a second aspect of the invention, in addition to the configuration of the first aspect, the first and second inclined surfaces are divided at every pitch in the winding axis direction. A coil for a rotating electrical machine is proposed.

また請求項３に記載された発明によれば、請求項１または請求項２の構成に加えて、前記第１、第２傾斜面を曲面で構成し、前記１個の巻回面および前記他の２個の巻回面に滑らかに接続したことを特徴とする回転電機のコイルが提案される。   According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the first and second inclined surfaces are formed of curved surfaces, the one winding surface and the other. A coil for a rotating electric machine is proposed which is smoothly connected to the two winding surfaces.

尚、実施例のインシュレータ１３は本発明の絶縁部材に対応し、実施例の第１〜第４巻回面１７ａ〜１７ｄは本発明の巻回面に対応する。   The insulator 13 of the embodiment corresponds to the insulating member of the present invention, and the first to fourth winding surfaces 17a to 17d of the embodiment correspond to the winding surface of the present invention.

請求項１の構成によれば、絶縁部材の巻回部に巻回される最内層の平角線は４個の巻回面のうちの３個の巻回面上で巻回軸に直交する同一の平面内で巻回され、残りの１個の巻回面上で該平角線の高さに相当する１ピッチだけ巻回軸方向に前記平面から離れるように斜めに巻回される。このとき、前記１個の巻回面が他の２個の巻回面に連なる２個の角部のうち、一方の角部に巻回軸の一方向にテーパする第１傾斜面を形成し、他方の角部に巻回軸の他方向にテーパする第２傾斜面を形成したので、前記２個の角部で平角線を折り曲げる際に該平角線を平面曲げして巻回部から浮き上がるのを防止し、整然とした巻回を可能として占積率を高めることができる。   According to the configuration of claim 1, the rectangular wire of the innermost layer wound around the winding portion of the insulating member is the same perpendicular to the winding axis on three winding surfaces of the four winding surfaces. Are wound on the remaining one winding surface obliquely so as to be separated from the plane in the winding axis direction by one pitch corresponding to the height of the rectangular wire. At this time, a first inclined surface tapering in one direction of the winding axis is formed at one corner of the two corners where the one winding surface is connected to the other two winding surfaces. Since the second inclined surface tapering in the other direction of the winding axis is formed at the other corner portion, when the flat wire is bent at the two corner portions, the flat wire is plane bent and lifted from the winding portion. Can be prevented, and an orderly winding can be performed, and the space factor can be increased.

請求項２の構成によれば、第１、第２傾斜面を巻回軸方向に１ピッチ毎に分割したので、巻回部の断面形状を正確な方形に近づけ、かつ径方向の異なる位置での巻回部の断面形状を同じにし、平角線を一層整然と巻回することが可能となる。   According to the configuration of the second aspect, since the first and second inclined surfaces are divided for each pitch in the winding axis direction, the cross-sectional shape of the winding portion is brought close to an accurate square and at different positions in the radial direction. It is possible to make the cross-sectional shape of the winding portions of the same and to wind the rectangular wire more orderly.

請求項３の構成によれば、第１、第２傾斜面を曲面で構成し、その両側の巻回面に滑らかに接続したので、第１、第２傾斜面で平角線を滑らかに折り曲げて急激な屈曲を防止し、巻回部からの浮き上がりを更に減少させることができる。   According to the configuration of the third aspect, the first and second inclined surfaces are formed by curved surfaces and are smoothly connected to the winding surfaces on both sides thereof, so that the rectangular wire is smoothly bent by the first and second inclined surfaces. Sudden bending can be prevented and lifting from the winding part can be further reduced.

以下、本発明の実施の形態を、添付の図面に示した本発明の実施例に基づいて説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.

図１〜図６は本発明の第１実施例を示すもので、図１はステータの部分正面図、図２は図１の２方向矢視図、図３はインシュレータの斜視図。図４は図３の４方向矢視図、図５は図４の５Ａ−５Ａ線、５Ｂ−５Ｂ線、５Ｃ−５Ｃ線断面図、図６は平角線の第１層の巻回状態を示す図である。   1 to 6 show a first embodiment of the present invention, in which FIG. 1 is a partial front view of a stator, FIG. 2 is a two-way arrow view of FIG. 1, and FIG. 3 is a perspective view of an insulator. 4 is a view taken in the direction of arrow 4 in FIG. 3, FIG. 5 is a sectional view taken along line 5A-5A, 5B-5B, and 5C-5C in FIG. 4, and FIG. FIG.

図１および図２に示すように、ハイブリッド車両の走行用駆動源として用いられる発電電動機の環状をなすステータ１０は、同一構造を有する複数個（実施例では２４個）のコイル１１…を円周方向に結合してなり、図１には２４個のコイル１１…のうちの５個が示される。各々のコイル１１は、多数の鋼板を積層した鉄心１２の外周を絶縁部材としての合成樹脂製のインシュレータ（ボビン）１３で覆い、そのインシュレータ１３に平角線１４を複数層に巻回してなる。鉄心１２の径方向の外端部は、その円周方向の両端部に凸部１２ａおよび凹部１２ｂを備えており、それらの凸部１２ａおよび凹部１２ｂが交互に嵌合することで円周方向に結合される。   As shown in FIGS. 1 and 2, a stator 10 forming a ring of a generator motor used as a driving source for a hybrid vehicle travels around a plurality of (in the embodiment, 24) coils 11... Having the same structure. FIG. 1 shows five of the 24 coils 11... Each coil 11 is formed by covering an outer periphery of an iron core 12 in which a large number of steel plates are laminated with a synthetic resin insulator (bobbin) 13 as an insulating member, and winding a rectangular wire 14 around the insulator 13 in a plurality of layers. The outer end portion in the radial direction of the iron core 12 includes convex portions 12a and concave portions 12b at both ends in the circumferential direction, and the convex portions 12a and the concave portions 12b are alternately fitted in the circumferential direction. Combined.

図３〜図５に示すように、インシュレータ１３は鉄心１２の外周に嵌合可能なように割り面ｐで２分割されており、平角線１４を巻回すべく外側フランジ部１５および内側フランジ部１６間に形成された巻回部１７は、第１巻回面１７ａ、第２巻回面１７ｂ、第３巻回面１７ｃおよび第４巻回面１７ｄを有している。従って、巻回部１７の巻回軸Ａに直交する断面の形状（図５参照）は、概ね方形状となっている。内側フランジ部１６には平角線１４の巻き始め部分をガイドする切欠１６ａが形成され、外側フランジ部１５には平角線１４の巻き終わり部分をガイドする切欠１５ａが形成される。   As shown in FIGS. 3 to 5, the insulator 13 is divided into two by a split surface p so as to be fitted to the outer periphery of the iron core 12, and the outer flange portion 15 and the inner flange portion 16 are wound around the rectangular wire 14. The winding part 17 formed therebetween has a first winding surface 17a, a second winding surface 17b, a third winding surface 17c, and a fourth winding surface 17d. Therefore, the cross-sectional shape (see FIG. 5) perpendicular to the winding axis A of the winding portion 17 is substantially rectangular. The inner flange portion 16 is formed with a notch 16 a that guides the winding start portion of the flat wire 14, and the outer flange portion 15 is formed with a notch 15 a that guides the winding end portion of the flat wire 14.

外側フランジ部１５の切欠１５ａおよび内側フランジ部１６の切欠１６ａが臨む巻回部１７の第１巻回面１７ａが第４巻回面１７ｄに連なる部分には、ステータ１０の径方向内側から径方向外側に向かってテーパーする三角形状の第１傾斜面１７ｅが形成されるとともに、第１巻回面１７ａが第２巻回面１７ｂに連なる部分には、ステータ１０の径方向外側から径方向内側に向かってテーパーする三角形状の第２傾斜面１７ｆが形成される。   The first winding surface 17a of the winding portion 17 facing the notch 15a of the outer flange portion 15 and the notch 16a of the inner flange portion 16 is connected to the fourth winding surface 17d in a radial direction from the radially inner side of the stator 10. A triangular first inclined surface 17e that tapers outward is formed, and a portion where the first winding surface 17a continues to the second winding surface 17b is formed from the radially outer side of the stator 10 to the radially inner side. A triangular second inclined surface 17f that tapers toward is formed.

次に、インシュレータ１３に対する平角線１４の巻回工程を説明する。   Next, the winding process of the flat wire 14 around the insulator 13 will be described.

先ずインシュレータ１３の内側フランジ部１６の切欠１６ａを通過させた平角線１４を、インシュレータ１３の巻回部１７の外周に沿って径方向内側から径方向外側に向かって外側フランジ部１５まで１４ターン巻回し（１層目）、次に平角線１４を外側フランジ部１５から内側フランジ部１６まで１２ターン巻回し（２層目）、次に平角線１４を内側フランジ部１６から外側フランジ部１５まで１２ターン巻回し（３層目）、次に平角線１４を外側フランジ部１５から内側フランジ部１６に向かって、その途中まで６ターン巻回し（４層目）、次に平角線１４を外側フランジ部１５まで５ターン巻回し（５層目）、最後に平角線１４を外側フランジ部１５に沿って１ターン巻回した後（６層目）、外側フランジ部１５の切欠１５ａを通過させる。   First, the flat wire 14 that has passed through the notch 16a of the inner flange portion 16 of the insulator 13 is wound by 14 turns from the radially inner side to the outer flange portion 15 along the outer periphery of the wound portion 17 of the insulator 13. Next, the flat wire 14 is wound 12 turns from the outer flange portion 15 to the inner flange portion 16 (second layer), and then the flat wire 14 is wound 12 from the inner flange portion 16 to the outer flange portion 15. Winding the turn (third layer), then winding the flat wire 14 from the outer flange portion 15 toward the inner flange portion 16 halfway (fourth layer), and then connecting the flat wire 14 to the outer flange portion. 15 turns for 5 turns (5th layer), and finally the rectangular wire 14 is wound for 1 turn along the outer flange portion 15 (6th layer), and then passes through the notch 15a of the outer flange portion 15. That.

このように、平角線１４を使用したことにより、隣接する平角線１４間の空間が丸線を使用した場合に比べて減少し、コイル１１の占積率を高めることができる。またインシュレータ１３の径方向内側では平角線１４を３層に巻回し、径方向外側では平角線１４を６層に巻回することにより、巻き上がったコイル１１の外径が径方向外側ほど大きくなるようにし、隣接するコイル１１…間の間隙１８…（図１参照）を小さくして占積率を更に高めることができる。   Thus, by using the flat wire 14, the space between the adjacent flat wires 14 decreases compared with the case where a round wire is used, and the space factor of the coil 11 can be increased. Further, by winding the flat wire 14 in three layers on the radially inner side of the insulator 13 and winding the flat wire 14 in six layers on the radially outer side, the outer diameter of the coil 11 that has been wound up becomes larger toward the radially outer side. In this way, the space 18 between the adjacent coils 11 (see FIG. 1) can be reduced to further increase the space factor.

ところで、図６に示すように、平角線１４がインシュレータ１３の巻回部１７に接触するように巻回される最内層の１層目は重要であり、この１層目において平角線１４が巻回部１７に密着せずに浮き上がると、２層目以降の巻回が乱れてコイル１１の形状が不安定になる可能性がある。巻回部１７の第１、第２傾斜面１７ｅ，１７ｆはこのために設けられたもので、１層目において平角線１４を巻回部１７に密着させる機能を有している。以下、第１、第２傾斜面１７ｅ，１７ｆの機能を説明する。   By the way, as shown in FIG. 6, the first innermost layer in which the flat wire 14 is wound so as to contact the winding portion 17 of the insulator 13 is important. In this first layer, the flat wire 14 is wound. If it floats without being in close contact with the turn part 17, the winding of the second and subsequent layers may be disturbed and the shape of the coil 11 may become unstable. The first and second inclined surfaces 17e and 17f of the winding part 17 are provided for this purpose, and have a function of bringing the flat wire 14 into close contact with the winding part 17 in the first layer. Hereinafter, functions of the first and second inclined surfaces 17e and 17f will be described.

巻回部１７の第１巻回面１７ａ〜第４巻回面１７ｄのうち、第１巻回面１７ａを除く残りの３個の第２巻回面１７ｂ〜第４巻回面１７に巻回される平角線１４は、巻回軸Ａに直交する平面内に在る。つまり平角線１４は第２巻回面１７ｂ、第３巻回面１７ｃおよび第４巻回面１７に巻回される間、径方向に移動することなく巻回軸Ａに直交する同一の平面内で巻回される。以下、この状態を「水平に巻回される」という。そして第４巻回面１７ｄを出た平角線１４は、次の第１巻回面１７ａに巻回される間に、平角線１４の高さに相当する１ピッチＰ（図４参照）だけ径方向外側に移動する。従って、第１巻回面１７ａに巻回される平角線１４は、巻回軸Ａに直交する平面から外れて傾斜状態で巻回されることになる。以下、この状態を「斜めに巻回される」という。   Of the first winding surface 17a to the fourth winding surface 17d of the winding portion 17, the remaining three second winding surfaces 17b to the fourth winding surface 17 other than the first winding surface 17a are wound. The rectangular wire 14 is in a plane perpendicular to the winding axis A. That is, the flat wire 14 is not wound in the radial direction while being wound around the second winding surface 17b, the third winding surface 17c, and the fourth winding surface 17, and is within the same plane orthogonal to the winding axis A. It is wound with. Hereinafter, this state is referred to as “winding horizontally”. Then, the flat wire 14 exiting the fourth winding surface 17d has a diameter of 1 pitch P (see FIG. 4) corresponding to the height of the flat wire 14 while being wound around the next first winding surface 17a. Move outward in the direction. Accordingly, the flat wire 14 wound around the first winding surface 17a is wound in an inclined state, deviating from the plane orthogonal to the winding axis A. Hereinafter, this state is referred to as “winding obliquely”.

仮に、巻回部１７が第１、第２傾斜面１７ｅ，１７ｆを備えていないとすると、第４巻回面１７ｄで水平に巻回された平角線１４が、第１巻回面１７ａで斜めに巻回される境目において、つまり第４巻回面１７ｄが第１巻回面１７ａに連なる角部において、平角線１４が不自然に曲げられて径方向外側部分で巻回部１７から浮き上がってしまい、整然とした巻回が阻害されてしまう問題がある。同様にして、第１巻回面１７ａで斜めに巻回された平角線１４が、第２巻回面１７ｂで水平に巻回される境目において、つまり第１巻回面１７ａが第２巻回面１７ｂに連なる角部において、平角線１４が不自然に曲げられて径方向内側部分で巻回部１７から浮き上がってしまい、整然とした巻回が阻害されてしまう問題がある。   If the winding part 17 does not include the first and second inclined surfaces 17e and 17f, the flat wire 14 wound horizontally on the fourth winding surface 17d is slanted on the first winding surface 17a. At the boundary where the fourth winding surface 17d is connected to the first winding surface 17a, the flat wire 14 is unnaturally bent and floats from the winding portion 17 at the radially outer portion. Therefore, there is a problem that orderly winding is hindered. Similarly, at the boundary where the flat wire 14 wound obliquely on the first winding surface 17a is wound horizontally on the second winding surface 17b, that is, the first winding surface 17a is second wound. There is a problem in that the rectangular wire 14 is unnaturally bent at the corner portion connected to the surface 17b and floats up from the winding portion 17 at the radially inner portion, so that orderly winding is hindered.

このように、第１、第２傾斜面１７ｅ，１７ｆを持たない場合には、第１巻回面１７ａの入口および出口で平角線を平面曲げすることができないが、本実施例では第４巻回面１７ｄが第１巻回面１７ａに連なる角部に第１傾斜面１７ｅが形成されているため、第４巻回面１７ｄを水平に出た平角線１４を第１傾斜面１７ｅに沿って素直に折り曲げて第１巻回面１７ａに導くだけで、図４に示すように、第１巻回面１７ａ上の平角線１４を傾斜させることができる。そして平角線１４は第１傾斜面１７ｅに沿って平面曲げされるので、巻回部１７から浮き上がることなく整然とした巻回が可能となり、これにより平角線１４の占積率を高めることができる。   As described above, when the first and second inclined surfaces 17e and 17f are not provided, the rectangular wire cannot be bent flat at the inlet and the outlet of the first winding surface 17a. Since the first inclined surface 17e is formed at the corner where the rotating surface 17d is continuous with the first winding surface 17a, the flat wire 14 extending horizontally from the fourth winding surface 17d extends along the first inclined surface 17e. As shown in FIG. 4, the flat wire 14 on the first winding surface 17a can be inclined simply by bending it straight and guiding it to the first winding surface 17a. And since the flat wire 14 is plane-bent along the 1st inclined surface 17e, orderly winding is possible, without raising from the winding part 17, and, thereby, the space factor of the flat wire 14 can be raised.

同様に、本実施例では第１巻回面１７ａが第２巻回面１７ｂに連なる角部に第２傾斜面１７ｆが形成されているため、第１巻回面１７ａを斜めに出た平角線１４を第２傾斜面１７ｆに沿って素直に折り曲げて第２巻回面１７ｂに導くだけで、第２巻回面１７ｂ上の平角線１４を水平に戻すことができる。そして平角線１４は第２傾斜面１７ｆに沿って平面曲げされるので、巻回部１７から浮き上がることなく整然とした巻回が可能となり、これにより平角線１４の占積率を高めることができる。   Similarly, in the present embodiment, since the second inclined surface 17f is formed at the corner portion where the first winding surface 17a is continuous with the second winding surface 17b, the rectangular wire that protrudes obliquely from the first winding surface 17a. The flat wire 14 on the second winding surface 17b can be returned to the horizontal simply by bending 14 straight along the second inclined surface 17f and guiding it to the second winding surface 17b. Since the flat wire 14 is plane-bent along the second inclined surface 17f, it is possible to perform an orderly winding without lifting from the winding portion 17, thereby increasing the space factor of the flat wire 14.

第１、第２傾斜面１７ｅ，１７ｆの傾斜角度は、第４巻回面１７ｄを出た平角線１４が第２巻回面１７ｂに入るときに、平角線１４の高さに相当する１ピッチＰだけ径方向外側に移動するように決定される。   The inclination angle of the first and second inclined surfaces 17e and 17f is 1 pitch corresponding to the height of the flat wire 14 when the flat wire 14 exiting the fourth winding surface 17d enters the second winding surface 17b. It is determined to move radially outward by P.

図７〜図１２は本発明の第２実施例を示すもので、図７はインシュレータの斜視図、図８は図７の８方向矢視図、図９は図８の９−９線断面図、図１０は図８の１０方向拡大矢視図、図１１は図８の１１方向拡大矢視図、図１２は平角線の第１層の巻回状態を示す図である。   7 to 12 show a second embodiment of the present invention. FIG. 7 is a perspective view of the insulator, FIG. 8 is a view taken in the direction of arrow 8 in FIG. 7, and FIG. 9 is a sectional view taken along line 9-9 in FIG. 10 is an enlarged view in the 10 direction of FIG. 8, FIG. 11 is an enlarged view in the 11 direction of FIG. 8, and FIG. 12 is a view showing a winding state of the first layer of the rectangular wire.

第１実施例はインシュレータ１３の巻回部１７がそれぞれ１個の第１、第２傾斜面１７ｅ，１７ｆを備えているが、第２実施例は平角線１４の各ターンに対応して一対の第１、第２傾斜面１７ｅ，１７ｆを備えている。   In the first embodiment, the winding portion 17 of the insulator 13 includes one first and second inclined surfaces 17e and 17f, respectively. In the second embodiment, a pair of turns corresponding to each turn of the rectangular wire 14 is provided. First and second inclined surfaces 17e and 17f are provided.

従って、図１２から明らかなように、平角線１４をインシュレータ１３の巻回部１７に巻回するとき、平角線１４は各ターン毎に一対の第１傾斜面１７ｅおよび第２傾斜面１７ｆに巻き付くことになり、全てのターンで平角線１４の巻回形状を同一にして一層整然とした巻回を可能にすることができる。   Therefore, as is apparent from FIG. 12, when the flat wire 14 is wound around the winding portion 17 of the insulator 13, the flat wire 14 is wound around the pair of first inclined surface 17e and second inclined surface 17f for each turn. As a result, the winding shape of the flat wire 14 can be made the same in all turns, thereby enabling more orderly winding.

次に、図１３および図１４に基づいて本発明の第３実施例を説明する。   Next, a third embodiment of the present invention will be described with reference to FIGS.

第３実施例は第２実施例の変形であって、第２実施例の第１、第２傾斜面１７ｅ，１７ｆが平坦な三角形で構成されているのに対し（図１０および図１１参照）、第３実施例の第１、第２傾斜面１７ｅ，１７ｆは角を丸めた部分円錐面で構成されており、第１傾斜面１７ｅは第１巻回面１７ａおよび第４巻回面１７ｄに滑らかに接続し、第２傾斜面１７ｆは第１巻回面１７ａおよび第２巻回面１７ｂに滑らかに接続する。   The third embodiment is a modification of the second embodiment, whereas the first and second inclined surfaces 17e and 17f of the second embodiment are formed of flat triangles (see FIGS. 10 and 11). The first and second inclined surfaces 17e and 17f of the third embodiment are configured by partial conical surfaces with rounded corners, and the first inclined surface 17e is formed on the first winding surface 17a and the fourth winding surface 17d. The second inclined surface 17f is smoothly connected to the first winding surface 17a and the second winding surface 17b.

この第３実施例によれば、平角線１４を急激に折り曲げることなく滑らかに湾曲させるだけで巻回部１７に巻回することが可能となり、巻回部１７からの平角線１４の浮き上がりを一層確実に防止することが可能となる。   According to the third embodiment, it is possible to wind the rectangular wire 14 around the winding portion 17 simply by smoothly bending the flat wire 14 without sharply bending it, and to further lift the rectangular wire 14 from the winding portion 17. It becomes possible to prevent reliably.

以上、本発明の実施例を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。   Although the embodiments of the present invention have been described above, various design changes can be made without departing from the scope of the present invention.

例えば、実施例ではハイブリッド車両用の発電電動機のステータ１０のコイル１１を例示したが、本発明は任意の用途の回転電機のコイルに対して適用することができる。   For example, in the embodiment, the coil 11 of the stator 10 of the generator motor for the hybrid vehicle is illustrated, but the present invention can be applied to a coil of a rotating electrical machine for any application.

また第１実施例において、第１、第２傾斜面１７ｅ，１７ｆの角を丸め、第１、第２および第４巻回面１７ａ，１７ｂ，１７ｄに滑らかに接続しても良い。   In the first embodiment, the corners of the first and second inclined surfaces 17e and 17f may be rounded and smoothly connected to the first, second and fourth winding surfaces 17a, 17b and 17d.

第１実施例に係るステータの部分正面図Partial front view of the stator according to the first embodiment 図１の２方向矢視図2 direction view of FIG. インシュレータの斜視図Insulator perspective view 図３の４方向矢視図4 direction arrow view of FIG. 図４の５Ａ−５Ａ線、５Ｂ−５Ｂ線、５Ｃ−５Ｃ線断面図5A-5A line, 5B-5B line, 5C-5C line sectional view of FIG. 平角線の第１層の巻回状態を示す図The figure which shows the winding state of the 1st layer of a flat wire 第２実施例に係るインシュレータの斜視図The perspective view of the insulator which concerns on 2nd Example. 図７の８方向矢視図8 direction arrow view of FIG. 図８の９−９線断面図Sectional view taken along line 9-9 in FIG. 図８の１０方向拡大矢視図10 direction enlarged arrow view of FIG. 図８の１１方向拡大矢視図11 direction enlarged arrow view of FIG. 平角線の第１層の巻回状態を示す図The figure which shows the winding state of the 1st layer of a flat wire 第３実施例に係る、前記図１０に対応する図The figure corresponding to the said FIG. 10 based on 3rd Example. 同じく前記図１１に対応する図Similarly, the figure corresponding to FIG.

符号の説明Explanation of symbols

１２ 鉄心
１３ インシュレータ（絶縁部材）
１４ 平角線
１７ 巻回部
１７ａ 第１巻回面（巻回面）
１７ｂ 第２巻回面（巻回面）
１７ｃ 第３巻回面（巻回面）
１７ｄ 第４巻回面（巻回面）
１７ｅ 第１傾斜面
１７ｆ 第２傾斜面
Ａ 巻回軸 12 Iron core 13 Insulator (insulating member)
14 Flat wire 17 Winding part 17a First winding surface (winding surface)
17b Second winding surface (winding surface)
17c 3rd winding surface (winding surface)
17d 4th winding surface (winding surface)
17e 1st inclined surface 17f 2nd inclined surface A Winding axis

Claims (3)

鉄心（１２）の周囲を覆う絶縁部材（１３）の巻回部（１７）に平角線（１４）を複数層に重ねて巻回した回転電機のコイルであって、
絶縁部材（１３）の巻回部（１７）は巻回軸（Ａ）に直交する断面が概ね方形状であり、最内層の平角線（１４）は巻回部（１７）の４個の巻回面（１７ａ〜１７ｄ）のうちの３個の巻回面（１７ｂ〜１７ｄ）上で巻回軸（Ａ）に直交する同一の平面内で巻回され、残りの１個の巻回面（１７ａ）上で該平角線（１４）の高さに相当する１ピッチだけ巻回軸（Ａ）方向に前記平面から離れるように斜めに巻回されるものにおいて、
前記１個の巻回面（１７ａ）が他の２個の巻回面（１７ｄ，１７ｂ）に連なる２個の角部のうち、一方の角部に巻回軸（Ａ）の一方向にテーパする第１傾斜面（１７ｅ）を形成するとともに、他方の角部に巻回軸（Ａ）の他方向にテーパする第２傾斜面（１７ｆ）を形成したことを特徴とする回転電機のコイル。 A coil of a rotating electrical machine in which a flat wire (14) is wound in a plurality of layers on a winding part (17) of an insulating member (13) covering the periphery of an iron core (12),
The winding part (17) of the insulating member (13) has a substantially rectangular cross section perpendicular to the winding axis (A), and the rectangular wire (14) in the innermost layer is the four windings of the winding part (17). Winding in the same plane orthogonal to the winding axis (A) on three winding surfaces (17b to 17d) of the winding surfaces (17a to 17d), and the remaining one winding surface ( 17a) In what is wound obliquely away from the plane in the winding axis (A) direction by one pitch corresponding to the height of the flat wire (14),
The one winding surface (17a) tapers in one direction of the winding axis (A) at one corner among two corners connected to the other two winding surfaces (17d, 17b). And a second inclined surface (17f) tapering in the other direction of the winding axis (A) at the other corner portion. 前記第１、第２傾斜面（１７ｅ，１７ｆ）が、巻回軸（Ａ）方向に１ピッチ毎に分割されていることを特徴とする、請求項１に記載の回転電機のコイル。   The coil of the rotating electrical machine according to claim 1, wherein the first and second inclined surfaces (17e, 17f) are divided at every pitch in the winding axis (A) direction. 前記第１、第２傾斜面（１７ｅ，１７ｆ）を曲面で構成し、前記１個の巻回面（１７ａ）および前記他の２個の巻回面（１７ｄ，１７ｂ）に滑らかに接続したことを特徴とする、請求項１または請求項２に記載の回転電機のコイル。
The first and second inclined surfaces (17e, 17f) are formed of curved surfaces and are smoothly connected to the one winding surface (17a) and the other two winding surfaces (17d, 17b). The coil of the rotary electric machine according to claim 1 or 2, wherein
JP2004223231A 2004-07-30 2004-07-30 Coil for rotating electrical machine Expired - Fee Related JP4371936B2 (en)

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JP2008131810A (en) * 2006-11-22 2008-06-05 Sumitomo Electric Ind Ltd Split core for motor
JP2010273450A (en) * 2009-05-21 2010-12-02 Asmo Co Ltd Electric motor
WO2012090424A1 (en) * 2010-12-29 2012-07-05 Nidec Corporation Armature and motor including armature
WO2020121806A1 (en) * 2018-12-13 2020-06-18 パナソニックＩｐマネジメント株式会社 Stator, and motor using the same
JP2020102959A (en) * 2018-12-21 2020-07-02 株式会社マキタ Electric work machine and method for forming coil to stator in motor for electric work machine
CN113659784A (en) * 2021-08-17 2021-11-16 湖南星创智能装备有限公司 Automatic pin inserting machine

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JP2002369418A (en) * 2001-06-04 2002-12-20 Nissan Motor Co Ltd Stator structure of electric motor
JP2003009480A (en) * 2001-06-25 2003-01-10 Asmo Co Ltd Method for winding straight-angle wire
JP2003079080A (en) * 2001-09-03 2003-03-14 Honda Motor Co Ltd Stator and rotary electric machine using the stator

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JP2001268835A (en) * 2000-03-23 2001-09-28 Toshiba Kyaria Kk Coolant compressor
JP2002369418A (en) * 2001-06-04 2002-12-20 Nissan Motor Co Ltd Stator structure of electric motor
JP2003009480A (en) * 2001-06-25 2003-01-10 Asmo Co Ltd Method for winding straight-angle wire
JP2003079080A (en) * 2001-09-03 2003-03-14 Honda Motor Co Ltd Stator and rotary electric machine using the stator

Cited By (13)

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JP4539643B2 (en) * 2006-11-22 2010-09-08 住友電気工業株式会社 Split core for motor
JP2008131810A (en) * 2006-11-22 2008-06-05 Sumitomo Electric Ind Ltd Split core for motor
JP2010273450A (en) * 2009-05-21 2010-12-02 Asmo Co Ltd Electric motor
WO2012090424A1 (en) * 2010-12-29 2012-07-05 Nidec Corporation Armature and motor including armature
US9154010B2 (en) 2010-12-29 2015-10-06 Nidec Corporation Armature and motor including armature
JP7394396B2 (en) 2018-12-13 2023-12-08 パナソニックＩｐマネジメント株式会社 Stator and motor using it
WO2020121806A1 (en) * 2018-12-13 2020-06-18 パナソニックＩｐマネジメント株式会社 Stator, and motor using the same
CN113039704A (en) * 2018-12-13 2021-06-25 松下知识产权经营株式会社 Stator and motor using the same
JPWO2020121806A1 (en) * 2018-12-13 2021-11-04 パナソニックＩｐマネジメント株式会社 Stator and motor using it
CN113039704B (en) * 2018-12-13 2024-05-31 松下知识产权经营株式会社 Stator and motor using the same
JP2020102959A (en) * 2018-12-21 2020-07-02 株式会社マキタ Electric work machine and method for forming coil to stator in motor for electric work machine
CN113659784B (en) * 2021-08-17 2022-05-17 湖南星创智能装备有限公司 Automatic pin inserting machine
CN113659784A (en) * 2021-08-17 2021-11-16 湖南星创智能装备有限公司 Automatic pin inserting machine

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