JP5335607B2 - Manufacturing method and manufacturing apparatus for stator of rotating electric machine - Google Patents

Manufacturing method and manufacturing apparatus for stator of rotating electric machine Download PDF

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JP5335607B2
JP5335607B2 JP2009188478A JP2009188478A JP5335607B2 JP 5335607 B2 JP5335607 B2 JP 5335607B2 JP 2009188478 A JP2009188478 A JP 2009188478A JP 2009188478 A JP2009188478 A JP 2009188478A JP 5335607 B2 JP5335607 B2 JP 5335607B2
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winding
split core
core
stator
rotating
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JP2011041423A (en
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篤史 坂上
裕之 秋田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing a stator of a dynamo-electric machine capable of preventing a wound winding coil from unwinding without increasing the number of processes in manufacture. <P>SOLUTION: A hook 52 for forming a crossover part 41 is slidably provided at a position near one end in the axial direction between a grasping surface 51a for grasping a plurality of division cores in a rotation direction of a fixing tool 51 and the grasped division cores, the crossover part 41 is formed while the hook 52 hooks a conductor 4 from a winding of the division core for holding a tension, and the end of the crossover part 41 is clamped between the division cores for fixing, thus preventing the wound winding coil from unwinding. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、回転電機の固定子の製造方法及び製造装置に関するものであり、特に、分割コアからなる回転電機の固定子の製造方法及び製造装置に関するものである。   The present invention relates to a method and apparatus for manufacturing a stator of a rotating electric machine, and more particularly to a method and apparatus for manufacturing a stator of a rotating electric machine including divided cores.

電動機や発電器等の回転機は、主に固定子と回転子から構成される。固定子は、珪素鋼板を打ち抜いて積層したコアと、電線を巻線した複数のコイルからなり、コアの円周上に配置されたスロット(溝)部に複数のコイルを組み込んだ構造となっている。   A rotating machine such as an electric motor or a generator is mainly composed of a stator and a rotor. The stator is composed of a core obtained by punching and stacking silicon steel plates and a plurality of coils wound with electric wires, and has a structure in which a plurality of coils are incorporated in slots (grooves) arranged on the circumference of the core. Yes.

電動機の場合は、これらのコイルに順番に電流を流し、回転磁界を発生させて回転子を回転させる。一方、発電機の場合は、回転子の回転によって磁界を変化させ、誘導電圧によってコイルに電流を流す。   In the case of an electric motor, an electric current is passed through these coils in order to generate a rotating magnetic field to rotate the rotor. On the other hand, in the case of a generator, the magnetic field is changed by the rotation of the rotor, and a current is passed through the coil by the induced voltage.

固定子のコアには、珪素鋼板を打ち抜いて積層した複数のブロック状の積層品(分割コア)を組み立てて構成されるタイプがある。分割コアは、バックヨーク部とティース部からなり、ティース部に直にノズルで巻線が施され、巻線後に一体に組み立てられる。   There is a type in which the core of the stator is configured by assembling a plurality of block-shaped laminated products (divided cores) obtained by punching and laminating silicon steel plates. The split core is composed of a back yoke portion and a tooth portion, and a winding is applied directly to the teeth portion with a nozzle, and is assembled integrally after the winding.

分割コアでは、巻線を施す際に、ノズルの位置を制御して巻線することが可能となり、電線の整列性及び占積率を向上させることで、小型で高効率の回転機を得ることができる。そのため、近年では分割コアの固定子が普及してきている。   With the split core, it is possible to control the nozzle position when winding, and to obtain a small and highly efficient rotating machine by improving the alignment and space factor of the wires. Can do. Therefore, in recent years, the stator of the split core has become widespread.

分割コアに巻線を施し組立てる方法では、コアブロックの巻線工程からコアブロックの組立工程へ搬送させる際に、コアブロックの相対的な位置関係が固定されにくいので、導体を巻回し、コアブロック同士を当接させるまでの間に巻線を施したコイルの巻き解けが起こりやすい。これを防ぐ方法として種々の方法が提案されている。   In the method of assembling by winding the divided core, the relative position of the core block is difficult to be fixed when transporting from the winding process of the core block to the assembly process of the core block. Unwinding of the coil that has been wound is likely to occur before the two come into contact with each other. Various methods have been proposed to prevent this.

例えば、特許文献1及び特許文献2には、ティース部に対して巻線を施した後、巻回したコイルに通電加熱による融着、もしくは樹脂モールドすることにより、巻回したコイルを固定する方法が示されている。   For example, in Patent Document 1 and Patent Document 2, after winding a tooth portion, a method of fixing the wound coil by fusion or resin molding by energization heating to the wound coil. It is shown.

また、特許文献3には、絶縁部材に設けられたピンに絡げることでコイルが解かれることを防止する方法が示されている。特許文献4には、連続して巻線を施すことによりコイル間を接続する結線箇所を削減し、工数の削減、モータ品質を向上させる方法が示されている。   Patent Document 3 discloses a method for preventing a coil from being unwound by being entangled with a pin provided on an insulating member. Patent Document 4 discloses a method for reducing the number of man-hours and improving motor quality by continuously connecting windings to reduce the number of connection points connecting the coils.

特開2002−34210号公報(0016段、図5)JP 2002-34210 A (stage 0016, FIG. 5) 特開2006−325296号公報(0025段、図4)JP 2006-325296 A (0025 stage, FIG. 4) 特開2007−6699号公報(0042段、図3)JP 2007-6699 A (0042 stage, FIG. 3) 特開2002−153003号公報(0033段、図11)JP 2002-153003 (step dan, FIG. 11)

しかしながら、従来の回転電機の固定子の製造方法では、絶縁ボビンに設けたピンに絡げる工程や巻線後のコイルを融着する工程が必要となり、生産性を低下させるという問題があった。また、渡り線を複数のコアブロックに連続して巻線を施し、コイル間を接続する渡り線を設ける場合でも、巻線後分割コアを組み立てるまでの間に巻き解けが起こるという問題があった。   However, the conventional method for manufacturing a stator of a rotating electric machine has a problem in that productivity is lowered because a step of tying a pin provided on an insulating bobbin and a step of fusing a coil after winding are required. . In addition, even when the crossover wire is continuously wound around a plurality of core blocks and the crossover wire connecting the coils is provided, there is a problem that unwinding occurs until the split core is assembled after the winding. .

本発明は、上記のような問題を解決するためになされたものであり、製造時の工程数を増加させることなく、巻線後の巻線コイルの巻き解けを防ぐことのできる回転電機の固定子の製造方法及び製造装置を提供することを目的とする。     The present invention has been made to solve the above-described problems, and can fix a rotating electrical machine that can prevent unwinding of a wound coil after winding without increasing the number of manufacturing steps. It aims at providing the manufacturing method and manufacturing apparatus of a child.

本発明に係る回転電機の固定子の製造方法は、略円環状の一部をなす第一の分割コアと第二の分割コアとの中心軸方向の一端部に、第一の分割コアの巻線と第二の分割コアの巻線との間の導線を、外部から引掛けて張力を保持しながら、第一の分割コアの巻線と第二の分割コアの巻線とで導線の一端部又は両端部を挟持して固定し、渡り部を形成することを特徴とするものである。   A method of manufacturing a stator for a rotating electrical machine according to the present invention includes winding a first split core at one end in the central axis direction between a first split core and a second split core that form a part of a substantially annular shape. One end of the conductive wire between the first divided core winding and the second divided core winding while holding the tension by pulling the conductive wire between the wire and the second divided core winding from the outside A part or both ends are clamped and fixed, and a crossing part is formed.

また、回転方向に3以上の把持部を並設した回転軸の把持部の一つに第一の分割コアを把持する第一の工程と、回転軸を回転し、分割コアのティース部に巻線を施す巻線部の方向に第一の分割コアを搬送した後、第一の分割コアのティース部に巻線を施し、第一の分割コアのティース部に巻線を施す間に、回転軸の反回転方向で第一の分割コアの隣の把持部に第二の分割コアを把持する第二の工程と、回転軸を回転し、第二の分割コアを巻線部の方向に搬送する際に、第一の分割コアの巻線からの導線を、前記第一の分割コアの把持部と第二の分割コアの把持部との間の回転軸方向の一端部近傍に設けられた第一の引掛部に引掛けた後、第二の分割コアのティース部に巻線を施し、第二の分割コアのティース部に巻線を施す間に、回転軸の反回転方向で第二の分割コアの隣の把持部に第三の分割コアを把持する第三の工程と、回転軸を回転し、第三の分割コアを巻線部の方向に搬送する際に、第一の引掛部に引掛けた第一の分割コアの巻線からの導線の張力を保持しながら、第一の分割コアを回転軸から取り外して所定の位置に保持し、搬送されてくる第二の分割コアの巻線と所定の位置に保持された第一の分割コアの巻線とで第一の分割コアの巻線からの導線の一端部又は両端部を挟持して固定し、渡り部を形成するとともに、第二の分割コアの巻線からの導線を、第二の分割コアの把持部と第三の分割コアの把持部との間の回転軸方向の一端部近傍に設けられた第二の引掛部に引掛けた後、第三の分割コアのティース部に巻線を施し、第三の分割コアのティース部に巻線を施す間に、回転軸の反回転方向で第三の分割コアの隣の把持部に第四の分割コアを把持する第四の工程とを備えることを特徴とするものである。   In addition, a first step of gripping the first split core on one of the gripping portions of the rotating shaft in which three or more gripping portions are arranged in the rotation direction, and the rotating shaft is rotated and wound around the tooth portion of the split core. After conveying the first split core in the direction of the winding part where the wire is applied, the winding is applied to the teeth part of the first split core and the winding is applied to the teeth part of the first split core. A second step of gripping the second split core in the gripping part next to the first split core in the counter-rotating direction of the shaft, and rotating the rotary shaft to convey the second split core in the direction of the winding part When conducting, the conducting wire from the winding of the first split core is provided in the vicinity of one end portion in the rotation axis direction between the grip portion of the first split core and the grip portion of the second split core. After hooking on the first hook part, winding is applied to the tooth part of the second split core, and while the winding is applied to the tooth part of the second split core, A third step of gripping the third split core in the gripping part adjacent to the second split core in the rolling direction, and rotating the rotating shaft to transport the third split core in the direction of the winding part The first split core is removed from the rotating shaft and held at a predetermined position while being kept in tension of the wire from the winding of the first split core hooked on the first hook portion, and is conveyed. Sandwiching and fixing one end or both ends of the conductor from the first split core winding with the second split core winding and the first split core winding held in place, A crossover portion is formed, and a conductive wire from the winding of the second split core is provided in the vicinity of one end portion in the rotation axis direction between the grip portion of the second split core and the grip portion of the third split core. After hooking on the second hooking portion, winding is applied to the teeth portion of the third split core, and winding is applied to the teeth portion of the third split core. To, those characterized by comprising a fourth step of gripping the fourth split core gripping portion adjacent to the third divided core in a counter rotation direction of the rotary shaft.

この発明に係る回転電機の固定子の製造装置は、分割コアを把持する把持部を回転方向に3つ以上並設する回転軸と、回転軸の一把持部に把持された隣接する分割コアのティース部間に連続する導線を巻線する巻線部と、把持部同士の間の回転軸方向の一端部近傍に設けられ、巻線部で巻線された分割コアの巻線からの導線を引掛け、分割コアの巻線からの導線の張力を保持するとともに、分割コアの巻線からの導線で形成される渡り部の形状を制御する引掛部とを備えるものである。 An apparatus for manufacturing a stator of a rotating electrical machine according to the present invention includes: a rotary shaft in which three or more gripping portions that grip a split core are arranged in parallel in a rotation direction; and an adjacent split core gripped by one gripping portion of the rotary shaft. Winding wire from the winding of the split core, which is provided in the vicinity of one end portion in the rotation axis direction between the grip portion and the winding portion winding the continuous wire between the teeth portions, and wound around the winding portion. The hook includes a hook portion that holds the tension of the lead wire from the winding of the split core and controls the shape of the transition portion formed by the lead wire from the split core winding .

本発明によれば、分割コア間の導線に外部から張力を加えながら、渡り部を形成し、渡り部の一端部又は両端部を分割コアの巻線同士で挟持して固定するようにしたので、導線を絶縁ボビンに設けたピンに絡げる工程や巻線後のコイルを融着する工程を有することなく、巻線後の巻線コイルの巻き解けを防ぐことができる。   According to the present invention, the connecting portion is formed while applying a tension from the outside to the conductive wire between the split cores, and one end portion or both end portions of the crossing portion are sandwiched and fixed between the windings of the split core. The winding coil after winding can be prevented from being unwound without having the process of tying the conductive wire to the pin provided on the insulating bobbin and the process of fusing the coil after winding.

本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の構成を示す斜視図である。It is a perspective view which shows the structure of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の構成を示す上面図である。It is a top view which shows the structure of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の構成を示す拡大上面図である。It is an enlarged top view which shows the structure of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子に設けられた導線の結線図である。It is a connection diagram of the conducting wire provided in the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子に設けられた導線の結線仕様を示す図である。It is a figure which shows the connection specification of the conducting wire provided in the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の製造装置の構成を示す斜視図である。It is a perspective view which shows the structure of the manufacturing apparatus of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の製造装置の構成を示す上面図である。It is a top view which shows the structure of the manufacturing apparatus of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の製造装置の製造工程を説明する図である。It is a figure explaining the manufacturing process of the manufacturing apparatus of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の製造装置の製造工程を説明する図である。It is a figure explaining the manufacturing process of the manufacturing apparatus of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の製造装置の製造工程を説明する図である。It is a figure explaining the manufacturing process of the manufacturing apparatus of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の製造装置の製造工程を説明する図である。It is a figure explaining the manufacturing process of the manufacturing apparatus of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における回転電機の固定子の製造装置の製造工程と時間との関係を説明する図である。It is a figure explaining the relationship between the manufacturing process and time of the manufacturing apparatus of the stator of the rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention. 本発明に係る回転電機の固定子の製造方法の実施の形態における他の回転電機の固定子の製造装置の構成を示す上面図である。It is a top view which shows the structure of the manufacturing apparatus of the stator of the other rotary electric machine in embodiment of the manufacturing method of the stator of the rotary electric machine which concerns on this invention.

以下、本発明に係る回転電機の固定子の製造方法の実施の形態について、図面に基づいて説明する。図1は、本発明の実施の形態1での回転電機の固定子の製造方法を用いて製造した固定子の構成を示す斜視図である。図2は平面図であり、図3は図2の領域Aの部分拡大図である。   Embodiments of a method for manufacturing a stator for a rotating electrical machine according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a configuration of a stator manufactured using the method for manufacturing a stator of a rotating electric machine according to Embodiment 1 of the present invention. 2 is a plan view, and FIG. 3 is a partially enlarged view of region A in FIG.

図1において、固定子200は、複数の分割コア101を略円環状に連結して構成される。図2に示すように、分割コア101は、バックヨーク部1とティース部2からなり、ティース部2には絶縁ボビン3を介して導線4の一部を巻回したコイル40が設けられている。   In FIG. 1, the stator 200 is configured by connecting a plurality of divided cores 101 in a substantially annular shape. As shown in FIG. 2, the split core 101 includes a back yoke portion 1 and a tooth portion 2, and the tooth portion 2 is provided with a coil 40 in which a part of a conducting wire 4 is wound via an insulating bobbin 3. .

ティース部2は、バックヨーク部1の中央部から円環状内側の中心方向に突設され、ティース部2の端部2aで形成される円環内側には図示しない回転子が挿入される。ティース部2に形成されたコイル40同士は、導線4の一部で形成される渡り部41で接続されている。   The teeth portion 2 protrudes from the central portion of the back yoke portion 1 toward the center inside the annular shape, and a rotor (not shown) is inserted into the annular shape formed by the end portion 2 a of the teeth portion 2. The coils 40 formed in the tooth portion 2 are connected to each other by a crossover portion 41 formed by a part of the conducting wire 4.

渡り部41は、コイル40の巻方向等によってそれぞれ接続形状が異なる。例えば、図3では、分割コア100のコイル40aは、分割コア101のコイル40b及び分割コア102のコイル40cと巻方向が異なる。この場合、コイル40aとコイル40bとを接続する渡り部41aの形状は、コイル40bとコイル40cとを接続する渡り部41bの形状と異なる。   The connecting portions 41 have different connection shapes depending on the winding direction of the coil 40 and the like. For example, in FIG. 3, the coil 40 a of the split core 100 is different in winding direction from the coil 40 b of the split core 101 and the coil 40 c of the split core 102. In this case, the shape of the transition part 41a that connects the coil 40a and the coil 40b is different from the shape of the transition part 41b that connects the coil 40b and the coil 40c.

また、渡り部41は、固定子200の円環中心軸方向に対して外側に傾斜して立設されるが、所定のコイル同士をそれぞれ図示しない複数の結線部材にて接続するため、結線部材同士が接触しないように高低差をつけて、また、角度差を付けた形状にて立設されている。   In addition, the crossover portion 41 is erected outwardly with respect to the center axis direction of the annular shape of the stator 200. However, since the predetermined coils are connected to each other by a plurality of connection members (not shown), the connection member It is erected in a shape with a height difference and an angle difference so that they do not contact each other.

いずれの渡り部41においても、大きく湾曲した形状で端部がコイル間で挟持されており、湾曲部が広がろうとする弾性力と、コイル間で挟み込む把持力でコイルの巻き解けを
防ぐ。例えば、図3では、渡り部41a、41bは、湾曲形状を有するとともに、端部41aa、41baがコイル40aとコイル40bとで挟持されている。
In any of the crossover portions 41, the end portion is sandwiched between the coils in a greatly curved shape, and the coil is prevented from being unwound by the elastic force that the curved portion tends to spread and the gripping force that is sandwiched between the coils. For example, in FIG. 3, the crossover portions 41a and 41b have a curved shape, and the end portions 41aa and 41ba are sandwiched between the coil 40a and the coil 40b.

次に、図4及び図5を用いて、固定子200における導線4の巻線仕様について説明する。図4は、12スロットの場合の図1に示すティース部2に巻線される導線4の結線図の一例を示すものである。   Next, the winding specification of the conducting wire 4 in the stator 200 will be described with reference to FIGS. 4 and 5. FIG. 4 shows an example of a connection diagram of the conductive wire 4 wound around the tooth portion 2 shown in FIG. 1 in the case of 12 slots.

各相は対応するコイル群ごとにU相、V相、W相として区別して示してある。図4に示す例は、3相電源に対応して導線4を全体としてデルタ結線したもので、各相毎に直列に接続されたコイル群が所謂2直2並列に接続されている。   Each phase is shown separately as a U phase, a V phase, and a W phase for each corresponding coil group. In the example shown in FIG. 4, the conductors 4 are delta-connected as a whole corresponding to a three-phase power source, and a group of coils connected in series for each phase is connected in a so-called 2-series / 2-parallel configuration.

即ち、U相に着目すると、U1+とU1−のコイルが直列接続され、U2−とU2+とが直列接続されている。更に、これら2つの直列接続が互いに並列に接続されている。ここで各コイルに+、−の符号を付けたのは、+と−とでは相互に導線4がティース部2へ巻かれる方向が逆であることを示したものである。   That is, focusing on the U phase, the coils of U1 + and U1- are connected in series, and U2- and U2 + are connected in series. Furthermore, these two series connections are connected in parallel to each other. Here, the signs of + and − are given to each coil, which indicates that the direction in which the conductive wire 4 is wound around the tooth portion 2 is opposite between + and −.

図5は、図4に示すコイル結線図(以下では結線仕様と呼ぶ)を実現するときの上記ティース部2への導線4の巻線順番およびコイル間の結線図を示すものである。各相は分割コアのティース部側から見た図であり、Bは巻線における各相の接続順の方向を示し、Cは各相におけるコイルの巻き方向を示す。Cの方向でRは右巻き(時計回り)、Lは左巻き(反時計回り)を示す。   FIG. 5 shows the winding order of the conductive wire 4 to the tooth portion 2 and the connection diagram between the coils when realizing the coil connection diagram shown in FIG. 4 (hereinafter referred to as a connection specification). Each phase is a view as seen from the teeth portion side of the split core, B indicates the direction of the connection order of each phase in the winding, and C indicates the winding direction of the coil in each phase. In the direction of C, R is clockwise (clockwise) and L is counterclockwise (counterclockwise).

図5に示すように、図4のような結線とした場合、巻き始め5から順に、コイルU1+、U1−、V1−、V1+、W1+、W1−、U2−、U2+、V2+、V2−、W2−、W2+、巻き終わり6まで1本の導線で連続的に巻くことができる。   As shown in FIG. 5, in the case of the connection as shown in FIG. 4, the coils U1 +, U1-, V1-, V1 +, W1 +, W1-, U2-, U2 +, V2 +, V2-, W2 in order from the winding start 5. -, W2 +, winding end 6 can be continuously wound with one conductor.

具体的には、コイルU1+が形成されることとなるティース部2のa側から巻き始められた導線4は、時計回りに所定回数ティース部に巻かれてU1+のコイルを形成した後、このティース部のb側から出る。   Specifically, the conductive wire 4 started to be wound from the side a of the tooth portion 2 where the coil U1 + is to be formed is wound around the teeth portion a predetermined number of times in the clockwise direction to form the U1 + coil. Exit from b side.

U1+のコイルを形成したティース部2のb側から出た導線4は、隣接するコイルU1−が巻かれることとなるティース部2のc側から入り、今度は、先ほどと逆の反時計回りに所定回数巻かれて、コイルU1−を形成した後、このティース部のd側から出る。   The lead 4 from the b side of the tooth portion 2 forming the U1 + coil enters from the c side of the tooth portion 2 where the adjacent coil U1- is wound, and this time, in the counterclockwise direction opposite to the previous one. After winding a predetermined number of times to form the coil U1-, it exits from the d side of this tooth portion.

更に、コイルU1−を形成したティース部2のd側から出た導線4は、V1−が形成されることとなる隣接するティース部2のe側に入り、反時計回りに巻回され、以下順次W2+のx側まで巻かれている。   Furthermore, the conducting wire 4 coming out from the d side of the tooth portion 2 where the coil U1- is formed enters the e side of the adjacent tooth portion 2 where the V1- is formed, and is wound counterclockwise. Sequentially wound to the x side of W2 +.

次に、本発明の実施の形態1での回転電機の固定子の製造方法を用いる製造装置について説明する。図6及び図7は、図1の固定子200を製造する製造装置としての巻線機500の構成を示す概略図である。図6は斜視図であり、図7は上面図である。   Next, a manufacturing apparatus that uses the method for manufacturing a stator of a rotating electric machine according to Embodiment 1 of the present invention will be described. 6 and 7 are schematic views showing a configuration of a winding machine 500 as a manufacturing apparatus for manufacturing the stator 200 of FIG. 6 is a perspective view, and FIG. 7 is a top view.

図6及び図7において、巻線機500は、コア供給部25、固定冶具軸20、巻線部50から構成される。図6に示すように、固定冶具軸20には、分割コア100を把持して固定する回転軸としての固定冶具51と、導線4を引掛けて渡り部41を形成する引掛部52が備えられる。   6 and 7, the winding machine 500 includes a core supply unit 25, a fixed jig shaft 20, and a winding unit 50. As shown in FIG. 6, the fixing jig shaft 20 is provided with a fixing jig 51 as a rotating shaft that holds and fixes the split core 100, and a hooking portion 52 that hooks the conducting wire 4 to form the crossing portion 41. .

固定冶具51は、固定子200の中心軸と平行な軸を中心として回転できる形状をなし、回転方向90°おきに分割コア100を把持する把持部としての把持面51aが4面設けられ、供給部25から供給される分割コア100を順次把持する。把持する方法は、バックヨーク部1の外径側中央部を把持する方法、バックヨーク部1を上下から把持する方法、もしくはバックヨーク部1を電磁チャックにより把持する方法、等を適用できる。   The fixing jig 51 has a shape capable of rotating around an axis parallel to the central axis of the stator 200, and is provided with four gripping surfaces 51a as gripping portions for gripping the split core 100 every 90 ° in the rotation direction. The divided cores 100 supplied from the unit 25 are sequentially gripped. As a gripping method, a method of gripping the center portion on the outer diameter side of the back yoke portion 1, a method of gripping the back yoke portion 1 from above and below, a method of gripping the back yoke portion 1 by an electromagnetic chuck, or the like can be applied.

引掛部52は、固定冶具51の上方で、固定冶具51の把持面51aに取り付けられ隣合う分割コア100の間の軸方向一端部近傍の位置に、90°おきに設けられる。また、引掛部52は、形成する渡り部41が所定の形状となるように上下、左右、及び前後に摺動可能に設けられ、渡り部41の高さ、角度等を制御する。   The hooking portion 52 is provided above the fixing jig 51 at a position near the one end in the axial direction between the adjacent split cores 100 attached to the gripping surface 51a of the fixing jig 51 every 90 °. The hooking portion 52 is provided so as to be slidable up and down, left and right, and front and rear so that the formed transition portion 41 has a predetermined shape, and controls the height, angle, and the like of the transition portion 41.

巻線部50は、供給部25から90°回転した位置に設けられ、固定冶具軸20の中心の軸Eの方向に、固定冶具51に取り付けられた分割コア100のコイル40の巻回中心を通る、軸Dを回転軸とするフライヤー53を備える。フライヤー53の先端にはフライヤー53の回転により導線4を供給し、コイル40を形成するノズル54が設けられている。   The winding part 50 is provided at a position rotated by 90 ° from the supply part 25, and the winding center of the coil 40 of the split core 100 attached to the fixing jig 51 is arranged in the direction of the axis E at the center of the fixing jig axis 20. A flyer 53 having an axis D as a rotation axis is provided. A nozzle 54 is provided at the tip of the fryer 53 to supply the conductive wire 4 by the rotation of the fryer 53 and form the coil 40.

コア供給部25は、固定冶具51の把持面51aに分割コア100のバックヨーク部1が対応する方向で、分割コア100を把持できる位置に供給する。コア供給部25は、巻線部50により分割コア100を巻線する間に、次に巻線する分割コアを固定冶具51に供給する。   The core supply unit 25 supplies the split core 100 to a position where it can be gripped in the direction in which the back yoke portion 1 of the split core 100 corresponds to the gripping surface 51a of the fixed jig 51. The core supply unit 25 supplies the divided core to be wound next to the fixing jig 51 while the divided core 100 is wound by the winding unit 50.

次に、図6及び図7の巻線機500を用いて固定子200を製造する製造方法について説明する。図8乃至図11は、図5において、巻き始め5から巻き終わり6まで、U1+、U1−、V1−、V1+、W1+、W1−、U2−、U2+、V2+、V2−、W2−、W2+の各コイルを順に1本の導線で連続的に巻く巻線工程を説明する図である。   Next, the manufacturing method which manufactures the stator 200 using the winding machine 500 of FIG.6 and FIG.7 is demonstrated. 8 to 11 are the same as those in FIG. 5 from the beginning 5 to the end 6 of U1 +, U1-, V1-, V1 +, W1 +, W1-, U2-, U2 +, V2 +, V2-, W2-, W2 +. It is a figure explaining the winding process which winds each coil in order by one conducting wire in order.

図8(a)乃至図8(d)は、コイルの巻き方向がR→L→Lの場合(パターンI)で順に巻線する工程を示す。図9(a)及び図9(b)は(→L→L)→Rの場合(パターンII)、図10(a)及び図10(b)は(→L→R)→Rの場合(パターンIII)、そして図11(a)及び図11(b)は(→R→R)→Lの場合(パターンIV)で順に巻線する工程を示す。   8A to 8D show a process of winding in order when the winding direction of the coil is R → L → L (pattern I). 9A and 9B show the case of (→ L → L) → R (pattern II), and FIGS. 10A and 10B show the case of (→ L → R) → R ( FIG. 11 (a) and FIG. 11 (b) show the steps of winding in order in the case of (→ R → R) → L (pattern IV).

最初に、図8により、巻き始め5からU1+、U1−、及びV1−のコイルまでを巻線する場合(パターンI:R→L→L)を説明する。まず、第一の工程として、U1+コイル40aを形成する分割コア100をコア供給部25により巻線冶具51に供給しておく。   First, referring to FIG. 8, the case where winding is started from the winding start 5 to the coils U1 +, U1-, and V1- (pattern I: R → L → L) will be described. First, as a first step, the split core 100 forming the U1 + coil 40a is supplied to the winding jig 51 by the core supply unit 25.

続いて、第二の工程として、固定冶具軸20を軸Eを中心に90°反時計方向に回転させることで固定冶具51の把持面51aに取り付けられた分割コア100を巻線部50の前に搬送する。   Subsequently, as a second step, the split jig 100 attached to the gripping surface 51a of the fixed jig 51 is rotated in front of the winding part 50 by rotating the fixed jig axis 20 about the axis E by 90 ° counterclockwise. Transport to.

分割コア100が搬送された後、巻き始め5となる導線4の端部4aを巻線機500の図示しない把持部で固定し、巻線機500のノズル54を固定冶具51に把持した多層コア100のティース部2の周りで時計方向に回転させることにより、導線4を右巻き(R)方向に巻回したU1+コイル40aを形成する。このとき、導線4の端部4aは、自身のコイル40aで巻かれて固定される。   After the split core 100 is conveyed, the multi-layer core in which the end 4a of the conductive wire 4 that becomes the winding start 5 is fixed by a gripping unit (not shown) of the winding machine 500 and the nozzle 54 of the winding machine 500 is gripped by the fixing jig 51. By rotating clockwise around 100 tooth portions 2, a U1 + coil 40a in which the conductive wire 4 is wound in the right-handed (R) direction is formed. At this time, the end 4a of the conducting wire 4 is wound and fixed by its own coil 40a.

一方で、コア供給部25は、U1+コイル40aを巻線する間に、次に巻線するU1−コイル40bの分割コア101を固定冶具51に供給しておく。   On the other hand, the core supply unit 25 supplies the split core 101 of the U1-coil 40b to be wound next to the fixing jig 51 while winding the U1 + coil 40a.

次いで、第三の工程として、U1+コイル40aを形成した後、ノズル54を上方の位置で停止させた状態で固定冶具51と、固定冶具51上に設けられた引掛部52とを軸Eを中心に反時計方向に90°回転させながら、U1+コイル40aからノズル54までの間の導線4を引掛部52に引掛ける。   Next, as a third step, after the U1 + coil 40a is formed, the fixing jig 51 and the hook 52 provided on the fixing jig 51 are centered on the axis E with the nozzle 54 stopped at the upper position. The wire 4 between the U1 + coil 40a and the nozzle 54 is hooked on the hook 52 while being rotated 90 ° counterclockwise.

導線4を引掛かけると同時に、ノズル54を反時計方向に傾け、図8(a)に示すように、渡り部41aを多層コア100、101の間の上方に形成する。このとき、引掛部52は、渡り部41aが所定の形状となるように高さ、角度等が制御され、ノズル54は、一定の張力を保持するように制御される。図8(a)には巻線後のU1+コイル40aが示されている。   At the same time that the conducting wire 4 is hooked, the nozzle 54 is tilted counterclockwise, and the crossover portion 41a is formed above the multilayer cores 100 and 101 as shown in FIG. At this time, the height and angle of the hooking portion 52 are controlled so that the crossing portion 41a has a predetermined shape, and the nozzle 54 is controlled to maintain a constant tension. FIG. 8A shows the U1 + coil 40a after winding.

ここで、所定の形状とは、コイルの巻き方向がR→Lの場合の渡り部の形状であり、結線部材が接触しないように高低及び角度を付けた形状である。   Here, the predetermined shape is a shape of a transition portion when the winding direction of the coil is R → L, and is a shape with an angle and an angle so that the connecting member does not contact.

渡り部41aが形成され、固定冶具51に固定されている次に巻線される多層コア101のティース部2が巻線部50の前に来ると、固定冶具51と引掛部52とは回転を停止する。   When the transition portion 41a is formed and the teeth portion 2 of the multilayer core 101 to be wound next fixed to the fixing jig 51 comes before the winding portion 50, the fixing jig 51 and the hooking portion 52 rotate. Stop.

多層コア101が巻線部50の前で停止すると、多層コア101のティース部2の周りで、ノズル54をそのまま反時計回りに軸Dを中心に円軌道で回転させることにより、図8(b)に示すように、導線4を左巻き(L)方向に巻回したU1−コイル40bを形成する。このとき、渡り部41aの端部41abは、自身のコイル40bで巻かれて固定される。   When the multilayer core 101 stops in front of the winding portion 50, the nozzle 54 is rotated counterclockwise as it is around the axis D in a circular orbit around the tooth portion 2 of FIG. ), The U1-coil 40b is formed by winding the conductive wire 4 in the left-handed (L) direction. At this time, the end portion 41ab of the crossover portion 41a is wound and fixed by its own coil 40b.

一方で、コア供給部25は、U1−コイル40bを巻線する間に、次に巻線するV1−コイル40cの分割コア102を固定冶具51に供給しておく。   On the other hand, the core supply unit 25 supplies the split core 102 of the V1-coil 40c to be wound next to the fixing jig 51 while winding the U1-coil 40b.

続いて、第四の工程として、U1−コイル40bを形成した後、固定冶具51と引掛部52とを軸Eを中心に反時計方向に90°回転させ、図8(c)に示すように、固定冶具51に固定されている次に巻線される多層コア102のティース部2を巻線部50の前に移動させる。   Subsequently, as a fourth step, after the U1-coil 40b is formed, the fixing jig 51 and the hooking portion 52 are rotated 90 ° counterclockwise about the axis E, as shown in FIG. Then, the teeth portion 2 of the multilayer core 102 wound next, which is fixed to the fixing jig 51, is moved in front of the winding portion 50.

このとき、多層コア100は、固定冶具51から取外され、移動してくる多層コア101と略円環状をなす位置に固定され、移動してきた多層コア101とで渡り部41aの端部41aaと渡り部41bの端部41baとを挟持する。   At this time, the multi-layer core 100 is detached from the fixing jig 51, fixed at a position that forms a substantially annular shape with the moving multi-layer core 101, and the moving multi-layer core 101 and the end 41aa of the crossover portion 41a. The end portion 41ba of the crossover portion 41b is clamped.

渡り部41aは、引掛部52により所定の形状となるように高さ、角度等を制御されながら張力を保持した状態で端部41aaが固定される。渡り部41bは、ノズル54により張力を保持した状態で端部41baが固定される。渡り部41aを形成した引掛部52は、その後はずされる。   The end portion 41aa of the crossover portion 41a is fixed in a state in which the tension is maintained while the height, the angle, and the like are controlled so as to have a predetermined shape by the hook portion 52. The transition portion 41 b is fixed to the end portion 41 ba in a state where the tension is held by the nozzle 54. The hooking portion 52 that forms the crossing portion 41a is then removed.

U1+コイル40aは、自身のコイル40aで導線4の端部4aを巻いて固定し、渡り部41aの端部41aaを自身のコイル40aと多層コア101のコイル40bとで挟持し、固定することで、巻き解けることはない。   The U1 + coil 40a is fixed by winding and fixing the end portion 4a of the conducting wire 4 with its own coil 40a, and sandwiching and fixing the end portion 41aa of the crossover portion 41a between its own coil 40a and the coil 40b of the multilayer core 101. , You can't unwind.

一方、このとき、固定冶具51と引掛部52とを回転させながら、U1−コイル40bからノズル54までの間の導線4を引掛部52に引掛ける。   On the other hand, at this time, the conductive wire 4 from the U1-coil 40b to the nozzle 54 is hooked on the hook 52 while rotating the fixing jig 51 and the hook 52.

導線4を引掛かけると同時に、ノズル54を反時計方向に傾け、図8(c)に示すように、渡り部41bを多層コア101、102の間の上方に形成する。このとき、引掛部52は、渡り部41bが所定の形状となるように高さ、角度等が制御され、ノズル54は、一定の張力を保持するように制御される。   At the same time that the conducting wire 4 is hooked, the nozzle 54 is tilted counterclockwise, and the transition portion 41b is formed above the multilayer cores 101 and 102 as shown in FIG. At this time, the height and angle of the hooking portion 52 are controlled so that the crossing portion 41b has a predetermined shape, and the nozzle 54 is controlled to maintain a constant tension.

ここで、所定の形状とは、コイルの巻き方向がL→Lの場合の渡り部の形状であり、結線部材が接触しないように高低及び角度を付けた形状である。   Here, the predetermined shape is the shape of the transition portion when the winding direction of the coil is L → L, and is a shape with a height and an angle so that the connecting member does not contact.

渡り部41aの端部41aaと渡り部41bの端部41baとが挟持され、渡り部41bが形成され、固定冶具51に固定されている次に巻線される多層コア102のティース部2が巻線部50の前に来ると、固定冶具51と引掛部52とは回転を停止する。   The end portion 41aa of the crossover portion 41a and the end portion 41ba of the crossover portion 41b are sandwiched to form the crossover portion 41b, and the tooth portion 2 of the multilayer core 102 to be wound next is fixed to the fixing jig 51. If it comes before the line part 50, the fixing jig 51 and the hook part 52 will stop rotation.

多層コア102が巻線部50の前で停止すると、多層コア102のティース部2の周りで、ノズル54をそのまま反時計回りに軸Dを中心に円軌道で回転させることにより、図8(d)に示すように、導線4を左巻き(L)方向に巻回したV1−コイル40cを形成する。このとき、渡り部41bの端部41bbは、自身のコイル40cで巻かれて固定される。   When the multilayer core 102 stops in front of the winding portion 50, the nozzle 54 is rotated counterclockwise as it is around the axis D in a circular orbit around the teeth portion 2 of the multilayer core 102, so that FIG. ), A V1-coil 40c is formed by winding the conductive wire 4 in the left-handed (L) direction. At this time, the end portion 41bb of the crossover portion 41b is wound and fixed by its own coil 40c.

次に、図9により、上記のU1+、U1−、及びV1−のコイルまでを巻線後、V1+コイル40dを巻線する場合(パターンII:(→L→L)→R)について説明する。まず、コア供給部25は、V1−コイル40cを巻線する間に、次に巻線するV1+コイル40dの分割コア103を固定冶具51に供給しておく。   Next, with reference to FIG. 9, a case where the V1 + coil 40d is wound after winding up to the coils U1 +, U1- and V1- (pattern II: (→ L → L) → R) will be described. First, the core supply unit 25 supplies the divided core 103 of the V1 + coil 40d to be wound next to the fixing jig 51 while winding the V1-coil 40c.

V1−コイル40cを形成した後(図8(d))、固定冶具51と引掛部52とを軸Eを中心に反時計方向に90°回転させ、図9(a)に示すように、固定冶具51に固定されている次に巻線される多層コア103のティース部2を巻線部50の前に移動させる。   After forming the V1-coil 40c (FIG. 8 (d)), the fixing jig 51 and the hook 52 are rotated 90 ° counterclockwise about the axis E, and fixed as shown in FIG. 9 (a). The teeth portion 2 of the multilayer core 103 to be wound next, which is fixed to the jig 51, is moved in front of the winding portion 50.

このとき、多層コア101は、固定冶具51から取外され、移動してくる多層コア102と略円環状をなす位置に固定され、移動してきた多層コア102とで渡り部41cの端部41caを挟持する。   At this time, the multi-layer core 101 is removed from the fixing jig 51 and fixed to a position that forms a substantially annular shape with the moving multi-layer core 102, and the end 41 ca of the crossover portion 41 c is moved between the multi-layer core 102 that has moved. Hold it.

渡り部41cは、上方の位置で停止するノズル54により張力を保持した状態で端部41caが挟持される。渡り部41bは、引掛部52により所定の形状となるように張力を保持し、高さ、角度等を制御される。渡り部41bを形成した引掛部52は、その後はずされる。   The transition portion 41c is sandwiched at the end portion 41ca in a state where tension is held by the nozzle 54 that stops at an upper position. The crossover part 41b holds tension so as to have a predetermined shape by the hooking part 52, and the height, angle, and the like are controlled. The hooking portion 52 that forms the crossover portion 41b is then removed.

U1−コイル40bは、渡り部41bの端部41baを多層コア100のコイル40a(図示なし)と自身のコイル40bとで挟持し、固定し、端部41bbが多層コア102のコイル40cで固定されることで、巻き解けることはない。   The U1-coil 40b sandwiches and fixes the end portion 41ba of the crossover portion 41b between the coil 40a (not shown) of the multilayer core 100 and its own coil 40b, and the end portion 41bb is fixed by the coil 40c of the multilayer core 102. By doing so, you can never unwind.

一方、このとき、固定冶具51と引掛部52とを回転させながら、V1−コイル40cからノズル54までの間の導線4を引掛部52に引掛ける。   On the other hand, at this time, the conductor 4 between the V1-coil 40c and the nozzle 54 is hooked on the hook 52 while rotating the fixing jig 51 and the hook 52.

導線4を引掛かけると同時に、ノズル54を反時計方向に傾斜させ、図9(a)に示すように、渡り部41cを形成する。このとき、引掛部52は、渡り部41cが所定の形状となるように高さ、角度等が制御され、ノズル54は一定の張力を保持するように制御される。   At the same time that the conducting wire 4 is hooked, the nozzle 54 is tilted counterclockwise to form the crossover 41c as shown in FIG. 9A. At this time, the height and the angle of the hooking portion 52 are controlled so that the crossing portion 41c has a predetermined shape, and the nozzle 54 is controlled to maintain a constant tension.

ここで、所定の形状とは、コイルの巻き方向がL→Rの場合の渡り部の形状であり、結線部材が接触しないように高低及び角度を付けた形状である。   Here, the predetermined shape is the shape of the transition portion when the winding direction of the coil is L → R, and is a shape with a height and an angle so that the connecting member does not contact.

ノズル54は、渡り部41cを形成した後、次の巻線に備えて下方の位置まで反時計方向に回転させておく。   The nozzle 54 is rotated counterclockwise to the lower position in preparation for the next winding after forming the crossing portion 41c.

渡り部41cの端部41caが挟み込まれ、渡り部41cが形成され、固定冶具51に固定されている次に巻線される多層コア103のティース部2が巻線部50の前に来ると、固定冶具51と引掛部52とは回転を停止する。   When the end portion 41ca of the crossover portion 41c is sandwiched, the crossover portion 41c is formed, and the teeth portion 2 of the multilayer core 103 to be wound next is fixed to the fixing jig 51, and comes before the winding portion 50, The fixing jig 51 and the hooking portion 52 stop rotating.

多層コア103が巻線部50の前で停止すると、多層コア103のティース部2の周りで、ノズル54を今度は時計回りに軸Dを中心に円軌道で回転させることにより、図9(b)に示すように、導線4を左巻き(R)方向に巻回したV1+コイル40dを形成する。このとき、渡り部41cの端部41cbは、自身のコイル40dで固定される。   When the multilayer core 103 stops in front of the winding portion 50, the nozzle 54 is rotated clockwise around the axis D around the tooth portion 2 of the multilayer core 103 in this manner, as shown in FIG. ), A V1 + coil 40d is formed by winding the conductive wire 4 in the left-handed (R) direction. At this time, the end portion 41cb of the crossover portion 41c is fixed by its own coil 40d.

次に、図10により、上記のV1+のコイルまでを巻線後、W1+コイル40eを巻線する場合(パターンIII:(→L→R)→R)について説明する。まず、コア供給部25は、V1+コイル40dを巻線する間に、次に巻線するW1+コイル40eの分割コア104を固定冶具51に供給しておく。   Next, with reference to FIG. 10, a case where the W1 + coil 40e is wound after winding up to the above-described V1 + coil (pattern III: (→ L → R) → R) will be described. First, the core supply unit 25 supplies the divided core 104 of the W1 + coil 40e to be wound next to the fixing jig 51 while winding the V1 + coil 40d.

V1+コイル40dを形成した後(図9(b))、固定冶具51と引掛部52とを軸Eを中心に反時計方向に90°回転させ、図10(a)に示すように、固定冶具51に固定されている次に巻線される多層コア104のティース部2を巻線部50の前に移動させる。   After forming the V1 + coil 40d (FIG. 9 (b)), the fixing jig 51 and the hooking portion 52 are rotated 90 ° counterclockwise about the axis E, as shown in FIG. 10 (a). The teeth portion 2 of the multilayer core 104 to be wound next, which is fixed to 51, is moved in front of the winding portion 50.

このとき、多層コア102は、固定冶具51から取外され、移動してくる多層コア103と略円環状をなす位置に固定される。   At this time, the multi-layer core 102 is removed from the fixing jig 51 and fixed to a position that forms a substantially annular shape with the moving multi-layer core 103.

渡り部41dは、上方の位置で停止するノズル54により張力を保持した状態で端部が挟持される。渡り部41cは、引掛部52により所定の形状となるように張力を保持し、高さ、角度等を制御される。渡り部41cを形成した引掛部52は、その後はずされる。   The end of the crossover 41d is held in a state where the tension is held by the nozzle 54 that stops at the upper position. The crossover portion 41c holds tension so as to have a predetermined shape by the hooking portion 52, and is controlled in height, angle, and the like. The hooking portion 52 that forms the crossover portion 41c is then removed.

V1−コイル40cは、渡り部41cの端部41caを多層コア101のコイル40b(図示なし)と自身のコイル40cとで挟持し、固定し、端部41cbが多層コア103のコイル40dで固定されることで、巻き解けることはない。   The V1-coil 40c sandwiches and fixes the end portion 41ca of the crossover portion 41c between the coil 40b (not shown) of the multilayer core 101 and its own coil 40c, and the end portion 41cb is fixed by the coil 40d of the multilayer core 103. By doing so, you can never unwind.

一方、このとき、固定冶具51と引掛部52とを回転させながら、V1+コイル40dからノズル54までの間の導線4を引掛部52に引掛ける。   On the other hand, at this time, the conductive wire 4 from the V1 + coil 40d to the nozzle 54 is hooked on the hooking portion 52 while rotating the fixing jig 51 and the hooking portion 52.

導線4を引掛かけると同時に、ノズル54を反時計方向に傾斜させ、図10(a)に示すように、渡り部41dを形成する。このとき、引掛部52は、渡り部41dが所定の形状となるように高さ、角度等が制御され、ノズル54は一定の張力を保持するように制御される。   At the same time that the conductor 4 is hooked, the nozzle 54 is tilted counterclockwise to form a crossover 41d as shown in FIG. 10 (a). At this time, the height and angle of the hooking portion 52 are controlled so that the crossing portion 41d has a predetermined shape, and the nozzle 54 is controlled to maintain a constant tension.

ここで、所定の形状とは、コイルの巻き方向がR→Rの場合の渡り部の形状であり、結線部材が接触しないように高低及び角度を付けた形状である。   Here, the predetermined shape is a shape of a transition portion when the winding direction of the coil is R → R, and is a shape that is provided with a height and an angle so that the connecting member does not contact.

ノズル54は、渡り部41dを形成した後、次の巻線に備えて下方の位置まで反時計方向に回転させておく。   The nozzle 54 is rotated counterclockwise to the lower position in preparation for the next winding after forming the crossing portion 41d.

渡り部41dの端部41daが挟持され、渡り部41dが形成され、固定冶具51に固定されている次に巻線される多層コア104のティース部2が巻線部50の前に来ると、固定冶具51と引掛部52とは回転を停止する。   When the end portion 41da of the crossover portion 41d is sandwiched, the crossover portion 41d is formed, and the teeth portion 2 of the multilayer core 104 to be wound next fixed to the fixing jig 51 comes before the winding portion 50, The fixing jig 51 and the hooking portion 52 stop rotating.

多層コア104が巻線部50の前で停止すると、多層コア104のティース部2の周りで、ノズル54を時計回りに軸Dを中心に円軌道で回転させることにより、図10(b)に示すように、導線4を左巻き(R)方向に巻回したW1+コイル40eを形成する。このとき、渡り部41dの端部41dbは、自身のコイル40eで固定される。   When the multi-layer core 104 stops in front of the winding portion 50, the nozzle 54 is rotated in a circular orbit around the axis D around the teeth portion 2 of the multi-layer core 104, so that FIG. As shown, a W1 + coil 40e is formed by winding the conducting wire 4 in the left-handed (R) direction. At this time, the end portion 41db of the crossover portion 41d is fixed by its own coil 40e.

次に、図11により、上記のW1+のコイルまでを巻線後、W1−コイル40fを巻線する場合(パターンIV:(→R→R)→L)について説明する。まず、コア供給部25は、W1+コイル40eを巻線する間に、次に巻線するW1−コイル40fの分割コア105を固定冶具51に供給しておく。   Next, referring to FIG. 11, a case where the W1-coil 40f is wound after winding up to the W1 + coil (pattern IV: (→ R → R) → L) will be described. First, the core supply unit 25 supplies the divided core 105 of the W1-coil 40f to be wound next to the fixed jig 51 while winding the W1 + coil 40e.

W1+コイル40eを形成した後(図10(b))、固定冶具51と引掛部52とを軸Eを中心に反時計方向に90°回転させ、図11(a)に示すように、固定冶具51に固定されている次に巻線される多層コア105のティース部2を巻線部50の前に移動させる。   After forming the W1 + coil 40e (FIG. 10 (b)), the fixing jig 51 and the hooking portion 52 are rotated 90 ° counterclockwise about the axis E, as shown in FIG. 11 (a). The teeth portion 2 of the multilayer core 105 to be wound next, which is fixed to 51, is moved in front of the winding portion 50.

このとき、多層コア103は、固定冶具51から取外され、移動してくる多層コア102と略円環状をなす位置に固定され、移動してきた多層コア104とで渡り部41dの端部41daを挟持する。   At this time, the multi-layer core 103 is removed from the fixing jig 51 and fixed at a position where the multi-layer core 102 that moves is substantially annular, and the end portion 41da of the crossover portion 41d is moved between the multi-layer core 104 that has moved. Hold it.

渡り部41eは、上方の位置で停止するノズル54により張力を保持した状態で端部41eaが挟持される。渡り部41dは、引掛部52により所定の形状となるように張力を保持し、高さ、角度等を制御される。渡り部41dを形成した引掛部52は、その後はずされる。   The transition portion 41e is sandwiched by the end portion 41ea in a state where the tension is held by the nozzle 54 that stops at an upper position. The crossing part 41d holds tension so as to have a predetermined shape by the hooking part 52, and the height, angle, and the like are controlled. The hooking portion 52 that forms the crossing portion 41d is then removed.

V1+コイル40dは、渡り部41dの端部41daを多層コア104のコイル40eと自身のコイル40dとで挟持し、固定し、端部41cbを自身のコイル40dで巻いて固定することで、巻き解けることはない。   The V1 + coil 40d can be unwound by sandwiching and fixing the end portion 41da of the crossover portion 41d between the coil 40e of the multilayer core 104 and its own coil 40d, and winding and fixing the end portion 41cb with its own coil 40d. There is nothing.

一方、このとき、固定冶具51と引掛部52とを回転させながら、W1+コイル40eからノズル54までの間の導線4を引掛部52に引掛ける。   On the other hand, at this time, the conductive wire 4 from the W1 + coil 40e to the nozzle 54 is hooked on the hooking portion 52 while rotating the fixing jig 51 and the hooking portion 52.

導線4を引掛かけると同時に、ノズル54を反時計方向に傾斜させ、図11(a)に示すように、渡り部41eを形成する。このとき、引掛部52は、渡り部41eが所定の形状となるように高さ、角度等が制御され、ノズル54は一定の張力を保持するように制御される。   At the same time that the conducting wire 4 is hooked, the nozzle 54 is tilted counterclockwise to form the crossover portion 41e as shown in FIG. At this time, the height and the angle of the hooking portion 52 are controlled so that the crossing portion 41e has a predetermined shape, and the nozzle 54 is controlled to maintain a constant tension.

ここで、所定の形状とは、コイルの巻き方向がR→Lの場合の渡り部の形状であり、結線部材が接触しないように高低及び角度を付けた形状である。   Here, the predetermined shape is a shape of a transition portion when the winding direction of the coil is R → L, and is a shape with an angle and an angle so that the connecting member does not contact.

渡り部41dの端部41daが挟持され、渡り部41eが形成され、固定冶具51に固定されている次に巻線される多層コア105のティース部2が巻線部50の前に来ると、固定冶具51と引掛部52とは回転を停止する。   When the end portion 41da of the crossover portion 41d is sandwiched, the crossover portion 41e is formed, and the teeth portion 2 of the multilayer core 105 to be wound next fixed to the fixing jig 51 comes before the winding portion 50, The fixing jig 51 and the hooking portion 52 stop rotating.

多層コア105が巻線部50の前で停止すると、多層コア105のティース部2の周りで、ノズル54をそのまま反時計回りに軸Dを中心に円軌道で回転させることにより、図11(b)に示すように、導線4を左巻き(L)方向に巻回したW1−コイル40fを形成する。このとき、渡り部41eの端部41ebは、自身のコイル40fで巻かれて固定される。   When the multilayer core 105 stops in front of the winding part 50, the nozzle 54 is rotated counterclockwise as it is around the axis D in a circular orbit around the teeth part 2 of the multilayer core 105, thereby FIG. ), The W1-coil 40f is formed by winding the conductive wire 4 in the left-handed (L) direction. At this time, the end portion 41eb of the crossover portion 41e is wound and fixed by its own coil 40f.

以下同様にして、順にパターンI((R→L)→L)、パターンII、パターンIII、パターンIV、パターンI、パターンIIと上記工程を繰り返すことにより、U2−コイル40g、U2+コイル40h、V2+コイル40i、V2−コイル40j、W2−コイル40k、W2+コイル40lを巻線することができる。   Thereafter, in the same manner, the above steps are repeated in order of pattern I ((R → L) → L), pattern II, pattern III, pattern IV, pattern I, and pattern II, whereby U2-coil 40g, U2 + coil 40h, V2 +. Coil 40i, V2-coil 40j, W2-coil 40k, W2 + coil 40l can be wound.

図12は、上記の各コイルの製造工程を、横軸を時間軸として表した図である。図12に示すように、コイルの巻線工程で、コア供給部25により次の分割コアを固定冶具51に供給しておくことにより、コアの供給工程61、巻線工程62、及び渡り部を挟持する工程63を並行して行うことができ、生産性を向上できる。   FIG. 12 is a diagram showing the manufacturing process of each coil described above with the horizontal axis as a time axis. As shown in FIG. 12, in the coil winding process, the core supply unit 25 supplies the next divided core to the fixing jig 51, so that the core supply process 61, the winding process 62, and the transition part are performed. The sandwiching step 63 can be performed in parallel, and productivity can be improved.

全ての分割コアが円環状に配置された後、それぞれの分割コア間は円環状を保持した状態で、特開2000−295801公報に示されるように、溶接などにより接合、円筒形フレームへの圧入、もしくは樹脂部材によるモールド、等により固定される。   After all the split cores are arranged in an annular shape, as shown in Japanese Patent Laid-Open No. 2000-295801, in a state where the annular cores are held between the split cores, they are joined by welding or the like and press-fitted into the cylindrical frame Alternatively, it is fixed by molding with a resin member or the like.

それぞれの分割コア間で形成された渡り部を、図5において破線で示す部分を結線部材で電気的に接続することにより、回転電機の固定子200が形成される。   The connecting portion formed between the respective split cores is electrically connected by a connecting member at a portion indicated by a broken line in FIG. 5 to form a stator 200 of the rotating electrical machine.

以上のように、本実施の形態では、固定冶具51の回転方向に複数の分割コアを把持する把持面51aと把持された分割コア間の軸方向一端部近傍の位置に、渡り部41を形成する引掛部52を摺動可能に設け、引掛部52により分割コアの巻線からの導線4を引掛けて張力を保持しながら、高さ、角度等を制御して、渡り部41を形成し、分割コア間で渡り部41の端部を挟持して固定するようにしたので、導線を絶縁ボビンに設けたピンに絡げる工程や巻線後のコイルを融着する工程を有することなく、巻線後の巻線コイルの巻き解けを防ぐことができる。   As described above, in the present embodiment, the crossover portion 41 is formed at a position in the vicinity of one end in the axial direction between the gripping surface 51a that grips the plurality of split cores in the rotation direction of the fixing jig 51 and the gripped split cores. The hook part 52 is slidably provided, and the crossing part 41 is formed by controlling the height, angle and the like while holding the tension by hooking the lead wire 4 from the winding of the split core by the hook part 52. Since the end portion of the crossover portion 41 is sandwiched and fixed between the divided cores, there is no step of tying the conductive wire to the pin provided on the insulating bobbin or the step of fusing the coil after winding. Unwinding of the winding coil after winding can be prevented.

また、コイルの巻線工程で、コア供給部25により次の分割コアを固定冶具51に供給しておくようにしたので、コアの供給工程、巻線工程、及び渡り部を挟持する工程を並行して行うことができ、生産性を向上できる。   Further, since the next split core is supplied to the fixing jig 51 by the core supplying unit 25 in the coil winding process, the core supplying process, the winding process, and the crossing process are performed in parallel. Productivity can be improved.

なお、本実施の形態においては、固定冶具51の把持面51aを90°おきに4面設けたが、これに限るものではない。360°/n(n≧3の整数)おきに3面以上設けることで、同様の効果を得ることができる。   In the present embodiment, the four holding surfaces 51a of the fixing jig 51 are provided every 90 °, but the present invention is not limited to this. By providing three or more surfaces every 360 ° / n (integer of n ≧ 3), the same effect can be obtained.

また、本実施の形態においては、12個の分割コアの各コイルを順に1本の導線で連続的に巻く巻線工程により説明したが、これに限るものではない。2以上の分割コアを連続で巻く巻線工程であれば同様の効果を得ることができる。   Moreover, in this Embodiment, although demonstrated by the winding process which winds each coil of 12 division | segmentation cores in order by one conducting wire in order, it does not restrict to this. The same effect can be obtained if it is a winding process in which two or more split cores are continuously wound.

また、本実施の形態においては、多層コアを供給する手段として、図6に示すような直線状のコア供給部を設けたが、これに限るものではない。例えば、略円環状のコア供給部26を設けてもよい。この場合、コア供給部がコンパクトになる。   In the present embodiment, a linear core supply unit as shown in FIG. 6 is provided as means for supplying a multilayer core, but the present invention is not limited to this. For example, a substantially annular core supply unit 26 may be provided. In this case, the core supply unit becomes compact.

2 ティース部
4 導線
25 コア供給部
40、40a、40b、40c コイル
41、41a、41b、41c、41d、41e、41f、41g、41h、41i、41j、41k 渡り部
41aa、41ab、41ba、41bb、41ca、41cb、41da、41db、41ea、41eb 端部
51 固定冶具
51a 把持面
52 引掛部
200 固定子
100、101、102、103、104、105、106、107、108、109、110、111 分割コア
500 巻線機
2 Teeth part 4 Conductor 25 Core supply part 40, 40a, 40b, 40c Coil 41, 41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i, 41j, 41k Transition part 41aa, 41ab, 41ba, 41bb, 41ca, 41cb, 41da, 41db, 41ea, 41eb End 51 Fixing jig 51a Holding surface 52 Hooking part 200 Stator 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111 Split core 500 Winding machine

Claims (10)

略円環状の一部をなす第一の分割コアと第二の分割コアとの中心軸方向の一端部に、前記第一の分割コアの巻線と前記第二の分割コアの巻線との間の導線を、外部から引掛けて張力を保持しながら、前記第一の分割コアの巻線と前記第二の分割コアの巻線とで前記導線の一端部又は両端部を挟持して固定し、渡り部を形成することを特徴とする回転電機の固定子の製造方法。   At one end in the central axis direction of the first divided core and the second divided core forming a part of a substantially annular shape, the winding of the first divided core and the winding of the second divided core While holding the tension by hooking the conducting wire between the outside, one end or both ends of the conducting wire are clamped and fixed by the winding of the first split core and the winding of the second split core And a method of manufacturing a stator of a rotating electric machine, wherein a crossing portion is formed. 回転方向に3以上の把持部を並設した回転軸の前記把持部の一つに第一の分割コアを把持する第一の工程と、前記回転軸を回転し、分割コアのティース部に巻線を施す巻線部の方向に前記第一の分割コアを搬送した後、前記第一の分割コアのティース部に巻線を施し、前記第一の分割コアのティース部に巻線を施す間に、前記回転軸の反回転方向で前記第一の分割コアの隣の前記把持部に第二の分割コアを把持する第二の工程と、前記回転軸を回転し、前記第二の分割コアを前記巻線部の方向に搬送する際に、前記第一の分割コアの巻線からの導線を、前記第一の分割コアの前記把持部と前記第二の分割コアの前記把持部との間の前記回転軸方向の一端部近傍に設けられた第一の引掛部に引掛けた後、前記第二の分割コアのティース部に巻線を施し、前記第二の分割コアのティース部に巻線を施す間に、前記回転軸の反回転方向で前記第二の分割コアの隣の前記把持部に第三の分割コアを把持する第三の工程と、 前記回転軸を回転し、前記第三の分割コアを前記巻線部の方向に搬送する際に、前記第一の引掛部に引掛けた前記第一の分割コアの巻線からの導線の張力を保持しながら、前記第一の分割コアを前記回転軸から取り外して所定の位置に保持し、搬送されてくる前記第二の分割コアの巻線と前記所定の位置に保持された前記第一の分割コアの巻線とで前記第一の分割コアの巻線からの導線の一端部又は両端部を挟持して固定し、渡り部を形成するとともに、前記第二の分割コアの巻線からの導線を、前記第二の分割コアの前記把持部と前記第三の分割コアの前記把持部との間の前記回転軸方向の一端部近傍に設けられた第二の引掛部に引掛けた後、前記第三の分割コアのティース部に巻線を施し、前記第三の分割コアのティース部に巻線を施す間に、前記回転軸の反回転方向で前記第三の分割コアの隣の前記把持部に第四の分割コアを把持する第四の工程とを備えることを特徴とする回転電機の固定子の製造方法。   A first step of gripping the first split core on one of the gripping portions of the rotary shaft in which three or more gripping portions are arranged side by side in the rotational direction; and the rotary shaft is rotated and wound around the tooth portion of the split core. After conveying the first split core in the direction of the winding portion to which the wire is applied, the winding is applied to the tooth portion of the first split core and the winding is applied to the tooth portion of the first split core. A second step of gripping the second split core to the grip portion adjacent to the first split core in the counter-rotating direction of the rotary shaft, and rotating the rotary shaft to rotate the second split core When conveying the wire in the direction of the winding portion, the conductive wire from the winding of the first split core is connected to the grip portion of the first split core and the grip portion of the second split core. After hooking on the first hook portion provided in the vicinity of one end portion in the rotation axis direction between the windings on the teeth portion of the second split core A third gripping the third split core on the gripping portion adjacent to the second split core in the counter-rotating direction of the rotary shaft while winding the winding on the teeth portion of the second split core And when rotating the rotating shaft and transporting the third split core in the direction of the winding portion, from the winding of the first split core hooked on the first hook portion The first split core is removed from the rotating shaft and held at a predetermined position while maintaining the tension of the lead wire, and is held at the predetermined position with the winding of the second split core being conveyed. In addition, one end or both ends of the conductive wire from the first split core winding is clamped and fixed with the first split core winding to form a crossover, and the second split core Lead wire from the winding of the second split core and the grip portion of the third split core After hooking on the second hook portion provided in the vicinity of the one end portion of the rotation axis in between, winding is applied to the teeth portion of the third split core, and the teeth portion of the third split core is A rotating electric machine comprising: a fourth step of gripping the fourth split core in the grip portion adjacent to the third split core in a counter-rotating direction of the rotating shaft during winding. Method of manufacturing the stator. 分割コアの分割数に応じて、第四の工程を更に繰り返すことを特徴とする請求項2に記載の回転電機の固定子の製造方法。   The method for manufacturing a stator of a rotating electric machine according to claim 2, wherein the fourth step is further repeated according to the number of divisions of the divided cores. 所定の位置は、全ての分割コアを固定してなる固定子が略円環状を形成するように、搬送されてくる第二の分割コアの巻線と第一の分割コアの巻線とで前記第一の分割コアの巻線からの導線の一端部又は両端部を挟持して固定できる前記第一の分割コアの位置であることを特徴とする請求項2または請求項3に記載の回転電機の固定子の製造方法。   The predetermined position is determined by the second split core winding and the first split core winding being conveyed so that the stator formed by fixing all the split cores forms a substantially annular shape. 4. The rotating electrical machine according to claim 2, wherein the rotating electrical machine is a position of the first split core that can be fixed by sandwiching one end portion or both end portions of the lead wire from the winding of the first split core. 5. Method of manufacturing the stator. 渡り部は、引掛部を摺動して形状を制御することにより形成されることを特徴とする請求項2乃至請求項4のいずれかに記載の回転電機の固定子の製造方法。   The method of manufacturing a stator for a rotating electrical machine according to any one of claims 2 to 4, wherein the crossover portion is formed by sliding the hook portion to control the shape. 分割コアを把持する把持部を回転方向に3つ以上並設する回転軸と、前記回転軸の前記一把持部に把持された隣接する前記分割コアのティース部間に連続する導線を巻線する巻線部と、前記把持部同士の間の前記回転軸方向の一端部近傍に設けられ、前記巻線部で巻線された前記分割コアの巻線からの導線を引掛け、前記分割コアの巻線からの導線の張力を保持するとともに、前記分割コアの巻線からの導線で形成される渡り部の形状を制御する引掛部とを備える回転電機の固定子の製造装置。 Winding a continuous wire between a rotating shaft in which three or more gripping portions for gripping the split core are arranged in the rotational direction and a tooth portion of the adjacent split core gripped by the one gripping portion of the rotating shaft. Provided in the vicinity of one end portion in the rotation axis direction between the winding portion and the gripping portion, hook the conductor from the winding of the split core wound by the winding portion, An apparatus for manufacturing a stator of a rotating electrical machine, comprising: a hook portion that holds a tension of a conductive wire from a winding and controls a shape of a transition portion formed by the conductive wire from the winding of the split core . 回転軸の反回転方向で、巻線部に対応する把持部の隣の把持部に、次に巻線する分割コアを順次供給する供給部をさらに備えることを特徴とする請求項6に記載の回転電機の固定子の製造装置。 The supply unit according to claim 6, further comprising: a supply unit that sequentially supplies divided cores to be wound next to a gripping unit adjacent to the gripping unit corresponding to the winding unit in a counter-rotating direction of the rotating shaft. Manufacturing equipment for stators of rotating electrical machines. 供給部は、分割コアを直線状に並べて供給することを特徴とする請求項に記載の回転電機の固定子の製造装置。 The apparatus for manufacturing a stator for a rotating electrical machine according to claim 7 , wherein the supply unit supplies the divided cores arranged in a straight line. 供給部は、分割コアを略円環状に並べて供給することを特徴とする請求項に記載の回転電機の固定子の製造装置。 The apparatus for manufacturing a stator of a rotating electric machine according to claim 7 , wherein the supply unit supplies the divided cores arranged in a substantially annular shape. 回転軸の回転方向で、巻線部に対応する把持部の隣の把持部の近傍に、巻線された分割コアを順次略円環状に保持する保持部をさらに備えることを特徴とする請求項6乃至請求項のいずれか1項に記載の回転電機の固定子の製造装置。 The rotation direction of the rotating shaft further includes a holding unit that holds the wound divided cores in a substantially annular shape in the vicinity of the holding unit adjacent to the holding unit corresponding to the winding unit. The manufacturing apparatus of the stator of the rotary electric machine of any one of Claim 6 thru | or 9 .
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