JP6595594B2

JP6595594B2 - Electric motor and winding method of electric motor

Info

Publication number: JP6595594B2
Application number: JP2017527409A
Authority: JP
Inventors: 義親川島; 裕美子木村; 秀典田中; 夏海田村
Original assignee: Mitsuba Corp
Current assignee: Mitsuba Corp
Priority date: 2015-07-03
Filing date: 2016-06-29
Publication date: 2019-10-23
Anticipated expiration: 2036-06-29
Also published as: JPWO2017006822A1; WO2017006822A1

Description

本発明は、電動モータおよび電動モータの巻線方法に関するものである。
本願は、２０１５年７月３日に、日本に出願された特願２０１５−１３４０９６号に基づき優先権を主張し、その内容をここに援用する。The present invention relates to an electric motor and an electric motor winding method.
This application claims priority on July 3, 2015 based on Japanese Patent Application No. 2015-134096 for which it applied to Japan, and uses the content here.

電動モータとして、いわゆるブラシ付きの直流モータがある。この種の電動モータは、磁極数が複数極の永久磁石が設けられているヨークと、ヨークの径方向内側に回転自在に設けられた回転軸と、回転軸に取り付けられ径方向に沿って放射状に延びる複数のティース、およびこれらティース間に形成される複数のスロットを有するアーマチュアコアと、各ティースに巻回される巻線と、回転軸にアーマチュアコアと隣接して設けられ複数枚のセグメントを周方向に配置したコンミテータと、セグメントを介して巻線に給電を行うためのブラシと、を備えている。セグメントにはライザが形成されており、このライザを介して、セグメントと巻線とが接続される。 There is a so-called brushed DC motor as an electric motor. This type of electric motor includes a yoke provided with a permanent magnet having a plurality of magnetic poles, a rotary shaft rotatably provided inside the yoke in the radial direction, and a radial shape attached to the rotary shaft along the radial direction. An armature core having a plurality of teeth extending to each other, a plurality of slots formed between the teeth, a winding wound around each tooth, and a plurality of segments provided adjacent to the armature core on a rotation shaft. A commutator arranged in the circumferential direction and a brush for supplying power to the winding through the segment are provided. A riser is formed in the segment, and the segment and the winding are connected via the riser.

ここで、モータ能力の向上や製造コストの低減化を図るためのさまざまな技術が提案されている。
例えば、磁極数を６極、スロット数を８、セグメント数を２４に設定し、各ティースに巻線を一般的な集中巻方式により巻回し、さらに、同電位となるセグメント同士を短絡線（均圧線）により接続した技術が開示されている。これにより、巻線の銅量を減らしてモータ能力の向上を図っている。また、短絡線を用いることにより、１つのセグメントに電流を供給すれば、同電位のセグメントにも電流が供給されるので、ブラシの個数を低減できる（例えば、特許文献１参照）。Here, various techniques for improving the motor capacity and reducing the manufacturing cost have been proposed.
For example, the number of magnetic poles is set to 6 poles, the number of slots is set to 8 and the number of segments is set to 24. The windings are wound around each tooth by a general concentrated winding method. A technique of connecting by pressure lines is disclosed. As a result, the copper capacity of the winding is reduced to improve the motor capacity. In addition, when a current is supplied to one segment by using a short-circuit wire, a current is also supplied to a segment having the same potential, so that the number of brushes can be reduced (see, for example, Patent Document 1).

特開２００３−２５９５８２号公報JP 2003-259582 A

ところで、一般的な集中巻方式により、各ティースに巻線を巻回した場合、相数（１極対あたりのセグメントの数）が決まるので、セグメント間の電圧を低減するのに限界があり、ブラシを延命化するにも限界があった。 By the way, when the winding is wound around each tooth by a general concentrated winding method, the number of phases (the number of segments per pole pair) is determined, so there is a limit in reducing the voltage between the segments, There was a limit to extending the life of the brush.

ここで、上述の実施形態では、１極対あたりのセグメントの数は８であり、セグメント間の電圧の低減に限界があり、さらなるブラシの延命化の要望に応えることが困難である。ブラシを延命化すべく、セグメント数を増大させようとすると、それに対応するように、磁極数やスロットの数も変更する必要があり、電動モータの体格が大型化してしまう。
また、短絡線を用いているので、この分、銅量が増大し、さらに、巻回作業にも時間がかかってしまい、製造コストが増大してしまうという課題がある。Here, in the above-described embodiment, the number of segments per pole pair is 8, and there is a limit to the voltage reduction between the segments, and it is difficult to meet the demand for further extending the life of the brush. In order to increase the number of segments in order to extend the life of the brush, it is necessary to change the number of magnetic poles and the number of slots so as to correspond to this, and the size of the electric motor is increased.
In addition, since the short-circuit wire is used, the amount of copper is increased by this amount, and further, the winding work takes time, resulting in an increase in manufacturing cost.

また、近年、さらなる電動モータの小型化の要望が高い。仮に無理に電動モータを小型化しようとすると、セグメントのライザと巻線とが干渉してしまい、巻線が損傷する可能性もある。 In recent years, there is a high demand for further miniaturization of electric motors. If the electric motor is forcibly reduced in size, the segment riser and the winding interfere with each other, and the winding may be damaged.

本発明は、体格を大型化することなく、さらにブラシの延命化を図ることができると共に、製造コストの増大を抑制できる電動モータおよび電動モータの巻線方法を提供するものである。
また、小型化を図りつつ巻線の損傷を確実に防止できる電動モータおよび電動モータの巻線方法を提供するものである。The present invention provides an electric motor and a winding method of the electric motor that can further extend the life of the brush without increasing the physique and can suppress an increase in manufacturing cost.
It is another object of the present invention to provide an electric motor and an electric motor winding method that can reliably prevent damage to the winding while reducing the size.

本発明の第１の態様によれば、電動モータは、磁極数が６極の永久磁石が設けられているヨークと、前記ヨークの径方向内側に回転自在に設けられた回転軸と、前記回転軸に取り付けられ径方向に沿って放射状に延びる８つのティース、およびこれらティース間に形成される８つのスロットを有するアーマチュアコアと、各前記ティースに巻回される巻線と、前記回転軸に前記アーマチュアコアと隣接して設けられ３２枚のセグメントを周方向に配置したコンミテータと、前記セグメントを介して前記巻線に給電を行うためのブラシと、を備えた電動モータであって、前記８つのティースに、周方向に沿って順に番号を付し、さらに、前記３２枚のセグメントに、周方向に沿って順に番号を付し、Ｎを自然数としたとき、２２番の前記セグメントと１番の前記セグメントとの間に、１番の前記ティースに２Ｎ回、順方向に巻回された前記巻線の端末部が接続され、１番の前記セグメントと１２番の前記セグメントとの間に、１番の前記ティースに２Ｎ回、順方向に巻回された前記巻線の端末部が接続され、１２番の前記セグメントと２３番の前記セグメントとの間に、５番の前記ティースにＮ回、逆方向に巻回されると共に、８番の前記ティースにＮ回、逆方向に巻回された前記巻線の端末部が接続され、２３番の前記セグメントと２番の前記セグメントとの間に、５番の前記ティースにＮ回、逆方向に巻回されると共に、８番の前記ティースにＮ回、逆方向に巻回された前記巻線の端末部が接続され、２番の前記セグメントと１３番の前記セグメントとの間に、４番の前記ティースに２Ｎ回、順方向に巻回された前記巻線の端末部が接続され、１３番の前記セグメントと２４番の前記セグメントとの間に、４番の前記ティースに２Ｎ回、順方向に巻回された前記巻線の端末部が接続され、２４番の前記セグメントと３番の前記セグメントとの間に、８番の前記ティースにＮ回、逆方向に巻回されると共に、３番の前記ティースにＮ回、逆方向に巻回された前記巻線の端末部が接続され、３番の前記セグメントと１４番の前記セグメントとの間に、８番の前記ティースにＮ回、逆方向に巻回されると共に、３番の前記ティースにＮ回、逆方向に巻回された前記巻線の端末部が接続され、１４番の前記セグメントと２５番の前記セグメントとの間に、７番の前記ティースに２Ｎ回、順方向に巻回された前記巻線の端末部が接続され、２５番の前記セグメントと４番の前記セグメントとの間に、７番の前記ティースに２Ｎ回、順方向に巻回された前記巻線の端末部が接続され、４番の前記セグメントと１５番の前記セグメントとの間に、３番の前記ティースにＮ回、逆方向に巻回されると共に、６番の前記ティースにＮ回、逆方向に巻回された前記巻線の端末部が接続され、１５番の前記セグメントと２６番の前記セグメントとの間に、３番の前記ティースにＮ回、逆方向に巻回されると共に、６番の前記ティースにＮ回、逆方向に巻回された前記巻線の端末部が接続され、２６番の前記セグメントと５番の前記セグメントとの間に、２番の前記ティースに２Ｎ回、順方向に巻回された前記巻線の端末部が接続され、５番の前記セグメントと１６番の前記セグメントとの間に、２番の前記ティースに２Ｎ回、順方向に巻回された前記巻線の端末部が接続され、１６番の前記セグメントと２７番の前記セグメントとの間に、６番の前記ティースにＮ回、逆方向に巻回されると共に、１番の前記ティースにＮ回、逆方向に巻回された前記巻線の端末部が接続され、２７番の前記セグメントと６番の前記セグメントとの間に、６番の前記ティースにＮ回、逆方向に巻回されると共に、１番の前記ティースにＮ回、逆方向に巻回された前記巻線の端末部が接続されて第１アーマチュアコイルが形成され、前記第１アーマチュアコイルと前記回転軸を中心にして点対称となるように、第２アーマチュアコイルが形成されている。 According to the first aspect of the present invention, the electric motor includes a yoke provided with a permanent magnet having six magnetic poles, a rotary shaft rotatably provided inside the yoke in the radial direction, and the rotation An armature core having eight teeth attached to the shaft and extending radially along the radial direction, and eight slots formed between the teeth; a winding wound around each of the teeth; and An electric motor comprising: a commutator provided adjacent to an armature core and having 32 segments arranged in the circumferential direction; and a brush for supplying power to the windings via the segments. The teeth are numbered in order along the circumferential direction, and the 32 segments are numbered in order along the circumferential direction, where N is a natural number. And a terminal portion of the winding wound in the forward direction 2N times to the first tooth, and the first segment and the 12th segment. The terminal portion of the winding wound in the forward direction is connected to the No. 1 tooth between the No. 12 segment and the No. 23 segment. The coil is wound N times in the reverse direction, and the end of the coil wound N times in the reverse direction is connected to the No. 8 tooth, and the No. 23 segment and the No. 2 segment are connected. Between the segments, the end of the winding wound N times around the teeth No. 5 and N times around the teeth No. 8 is connected in the reverse direction, The 4th tee between the 2nd segment and the 13th segment The end of the winding wound in the forward direction is connected to the No. 13 segment and the No. 24 segment, and the No. 4 tooth is wound in the forward direction 2N times. The end portion of the wound winding is connected, and between the 24th segment and the 3rd segment, the 8th tooth is wound N times in the reverse direction and the 3rd segment The end portion of the winding wound in the reverse direction N times is connected to the teeth, and the N-number of the teeth No. 8 in the reverse direction between the No. 3 segment and the No. 14 segment. And the end of the winding wound in the opposite direction N times to the third tooth, and connected between the 14th segment and the 25th segment, 7 The end of the winding wound in the forward direction is connected to the teeth of the number 2N times Between the segment No. 25 and the segment No. 4 is connected to the end of the winding wound in the forward direction 2N times on the No. 7 tooth, and the No. 4 segment The end portion of the winding wound around the No. 3 tooth N times in the reverse direction and between the No. 15 segment and the No. 6 tooth N times in the reverse direction Is connected between the segment No. 15 and the segment No. 26 and wound around the No. 3 tooth N times in the reverse direction and at the No. 6 tooth N times in the reverse direction. The end portion of the wound winding is connected, and the winding of the winding wound in the forward direction 2N times on the second tooth is connected between the 26th segment and the 5th segment. The terminal part is connected, the segment No. 5 and the segment No. 16 In between, a terminal portion of the winding wound in the forward direction 2N times is connected to the second tooth, and the sixth tooth is interposed between the 16th segment and the 27th segment. And the end of the winding wound N times in the reverse direction is connected to the No. 1 tooth, and the No. 27 segment and the No. 6 segment are connected to the No. 1 tooth. And the end of the winding wound N times around the No. 1 tooth and connected in the reverse direction to the No. 6 tooth. One armature coil is formed, and a second armature coil is formed so as to be point-symmetric about the first armature coil and the rotation axis.

このように構成することで、磁極数を６極、スロットの数を８つとしながら、セグメントの数を３２とすることができる。このため、電動モータの体格を大型化することなく、セグメント間の電圧を低減でき、ブラシのさらなる延命化を図ることができる。
また、従来のように短絡線を用いることなく、ブラシの個数を低減できる。このため、電動モータの製造コストを低減できる。With this configuration, the number of segments can be 32 while the number of magnetic poles is 6 and the number of slots is 8. For this reason, the voltage between segments can be reduced and the life of the brush can be further extended without increasing the size of the electric motor.
Further, the number of brushes can be reduced without using a short-circuit wire as in the prior art. For this reason, the manufacturing cost of an electric motor can be reduced.

本発明の第２の態様によれば、電動モータは、磁極数が６極の永久磁石が設けられているヨークと、前記ヨークの径方向内側に回転自在に設けられた回転軸と、前記回転軸に取り付けられ径方向に沿って放射状に延びる８つのティース、およびこれらティース間に形成される８つのスロットを有するアーマチュアコアと、各前記ティースに巻回される巻線と、前記回転軸に前記アーマチュアコアと隣接して設けられ３２枚のセグメントを周方向に配置したコンミテータと、前記セグメントを介して前記巻線に給電を行うためのブラシと、を備えた電動モータであって、前記８つのティースに、周方向に沿って順に番号を付し、さらに、前記３２枚のセグメントに、周方向に沿って順に番号を付したとき、２２番の前記セグメントと１番の前記セグメントとの間に、１番の前記ティースに所定回、順方向に巻回され、かつ１番の前記ティースの周方向両側に位置する前記スロットを除いた他の前記スロットに１回挿通された前記巻線の端末部が接続され、１番の前記セグメントと１２番の前記セグメントとの間に、１番の前記ティースに所定回、順方向に巻回された前記巻線の端末部が接続され、１２番の前記セグメントと２３番の前記セグメントとの間に、５番の前記ティースに所定回、および８番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、５番の前記ティースおよび８番の前記ティースを除いた他の前記ティースに１回、順方向に巻回された前記巻線の端末部が接続され、２３番の前記セグメントと２番の前記セグメントとの間に、５番の前記ティースに所定回、逆方向に巻回されると共に、８番の前記ティースに所定回、逆方向に巻回された前記巻線の端末部が接続され、２番の前記セグメントと１３番の前記セグメントとの間に、４番の前記ティース所定回、順方向に巻回され、かつ４番の前記ティースの周方向両側に位置する前記スロットを除いた他の前記スロットに１回挿通された前記巻線の端末部が接続され、１３番の前記セグメントと２４番の前記セグメントとの間に、４番の前記ティースに所定回、順方向に巻回された前記巻線の端末部が接続され、２４番の前記セグメントと１４番の前記セグメントとの間に、８番の前記ティースに所定回、および３番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、８番の前記ティースおよび３番の前記ティースを除いた他の前記ティースに１回、順方向に巻回された前記巻線の端末部が接続され、３番の前記セグメントと１４番の前記セグメントとの間に、８番の前記ティースに所定回、および３番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、８番の前記ティースおよび３番の前記ティースの何れか一方の前記スロットを除いた他の前記スロットに１回挿通された前記巻線の端末部が接続され、１４番の前記セグメントと２５番の前記セグメントとの間に、７番の前記ティースに所定回、順方向に巻回され、かつ７番の前記ティースの周方向両側に位置する前記スロットを除いた他の前記スロットに１回挿通された前記巻線の端末部が接続され、２５番の前記セグメントと４番の前記セグメントとの間に、７番の前記ティースに所定回、順方向に巻回された前記巻線の端末部が接続され、４番の前記セグメントと１５番の前記セグメントとの間に、３番の前記ティースに所定回、および６番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、３番の前記ティースおよび６番の前記ティースを除いた他の前記ティースに１回、順方向に巻回された前記巻線の端末部が接続され、１５番の前記セグメントと２６番の前記セグメントとの間に、３番の前記ティースに所定回、および６番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、３番の前記ティースおよび６番の前記ティースの何れか一方の周方向両側に位置する前記スロットを除いた他の前記スロットに１回挿通された前記巻線の端末部が接続され、２６番の前記セグメントと５番の前記セグメントとの間に、２番の前記ティースに所定回、順方向に巻回された前記巻線の端末部が接続され、５番の前記セグメントと１６番の前記セグメントとの間に、前記アーマチュアコアの前記コンミテータとは反対側に掛け渡された前記巻線の端末部が接続され、１６番の前記セグメントと２７番の前記セグメントとの間に、６番の前記ティースに所定回、逆方向に巻回されると共に、１番の前記ティースに所定回、逆方向に巻回され、かつ６番の前記ティースおよび１番の前記ティースを除いた他の前記ティースに１回、順方向に巻回された前記巻線の端末部が接続され、２７番の前記セグメントと６番の前記セグメントとの間に、６番の前記ティースに所定回、逆方向に巻回されると共に、１番の前記ティースに所定回、逆方向に巻回された前記巻線の端末部が接続されて第１アーマチュアコイルが形成され、前記第１アーマチュアコイルと前記回転軸を中心にして点対称となるように、第２アーマチュアコイルが形成されている。 According to the second aspect of the present invention, the electric motor includes a yoke provided with a permanent magnet having six magnetic poles, a rotary shaft rotatably provided on a radially inner side of the yoke, and the rotation An armature core having eight teeth attached to the shaft and extending radially along the radial direction, and eight slots formed between the teeth; a winding wound around each of the teeth; and An electric motor comprising: a commutator provided adjacent to an armature core and having 32 segments arranged in the circumferential direction; and a brush for supplying power to the windings via the segments. When teeth are numbered in order along the circumferential direction, and further, the 32 segments are numbered in order along the circumferential direction, the number 22 segment and the number 1 Between the first and second teeth, wound in the forward direction a predetermined number of times, and inserted once into the other slots except for the slots located on both sides in the circumferential direction of the first tooth. The end of the winding is connected, and the end of the winding wound in the forward direction on the first tooth is connected between the first segment and the 12th segment. Between the segment No. 12 and the segment No. 23, the No. 5 tooth is wound a predetermined number of times, and the No. 8 tooth is wound a predetermined number of times in the opposite direction, and the No. 5 segment A terminal portion of the winding wound in the forward direction once is connected to the other teeth excluding the teeth and the No. 8 tooth, and is connected between the No. 23 segment and the No. 2 segment. In place of the tooth 5 And the end of the winding wound in the reverse direction a predetermined number of times and connected to the No. 8 tooth, and the No. 2 segment and the No. 13 segment. In between, the winding of the winding wound in the forward direction a predetermined number of times of the No. 4 tooth and inserted once in the other slots excluding the slots located on both sides in the circumferential direction of the No. 4 tooth. A terminal portion is connected, and between the 13th segment and the 24th segment, a terminal portion of the winding wound in the forward direction on the 4th tooth is connected to the 24th segment. Between the segment No. 14 and the segment No. 14 are wound around the No. 8 tooth a predetermined number of times and the No. 3 tooth a predetermined number of times in the opposite direction, respectively, Other than the above teeth of the number A terminal portion of the winding wound in the forward direction once is connected to the teeth, and a predetermined number of times on the teeth of No. 8 and between the segments of No. 3 and No. 14 and No. 3 The windings wound around the teeth in the reverse direction a predetermined number of times, and inserted once into the other slots except for either the No. 8 tooth or the No. 3 tooth. The end of the wire is connected, between the 14th segment and the 25th segment, wound around the 7th tooth in the forward direction, and on both sides in the circumferential direction of the 7th tooth. The end of the winding inserted once into the other slot except for the slot located at is connected to the 7th tooth between the 25th segment and the 4th segment. Winding forward a predetermined number of times The ends of the windings connected to each other are connected in a reverse direction between the fourth segment and the fifteenth segment, a predetermined number of times for the third tooth and a predetermined number of times for the sixth tooth. And the end of the winding wound in the forward direction is connected once to the other teeth except for the teeth No. 3 and No. 6 and No. 15 Between the segment and the No. 26 segment, the No. 3 tooth and the No. 6 tooth are wound in the opposite direction, respectively, and the No. 3 tooth and No. 6 The ends of the windings inserted once into the other slots except for the slots located on both circumferential sides of any one of the teeth are connected, and the 26th segment and the 5th segment Between The end of the winding wound in the forward direction a predetermined number of times on the second tooth is connected, and the commutator of the armature core is between the fifth segment and the sixteenth segment. The end portion of the winding wound on the opposite side is connected, and is wound around the 6th tooth a predetermined number of times in the reverse direction between the 16th segment and the 27th segment. The winding wound around the No. 1 tooth a predetermined number of times in the reverse direction and once around the No. 6 tooth and the other teeth except the No. 1 tooth in the forward direction. Are connected to the No. 27 segment and the No. 6 segment, the No. 6 tooth is wound in the reverse direction a predetermined number of times, and the No. 1 tooth is set in a predetermined number of times. End of the winding wound in the reverse direction The first armature coil is formed by connecting the parts, and the second armature coil is formed so as to be point-symmetric about the first armature coil and the rotation axis.

この場合、本発明の第３の態様のように、２２番の前記セグメントと１番の前記セグメントとの間に、１番の前記ティースに所定回、順方向に巻回され、かつ６番の前記ティースと７番の前記ティースとの間の前記スロットに１回挿通された前記巻線の端末部が接続され、１２番の前記セグメントと２３番の前記セグメントとの間に、５番の前記ティースに所定回、および８番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、４番の前記ティースに１回、順方向に巻回された前記巻線の端末部が接続され、２番の前記セグメントと１３番の前記セグメントとの間に、４番の前記ティースに所定回、順方向に巻回され、かつ１番の前記ティースと２番の前記ティースとの間の前記スロットに１回挿通された前記巻線の端末部が接続され、２４番の前記セグメントと１４番の前記セグメントとの間に、８番の前記ティースに所定回、および３番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、７番の前記ティースに１回、順方向に巻回された前記巻線の端末部が接続され、３番の前記セグメントと１４番の前記セグメントとの間に、８番の前記ティースに所定回、および３番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、４番の前記ティースと５番の前記ティースとの間の前記スロットに１回挿通された前記巻線の端末部が接続され、１４番の前記セグメントと２５番の前記セグメントとの間に、４番の前記ティースと５番の前記ティースとの間の前記スロットと、７番の前記ティースと８番の前記ティースとの間の前記スロットとに挿通された前記巻線の端末部が接続され、４番の前記セグメントと１５番の前記セグメントとの間に、３番の前記ティースに所定回、および６番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、２番の前記ティースに１回、順方向に巻回された前記巻線の端末部が接続され、１５番の前記セグメントと２６番の前記セグメントとの間に、３番の前記ティースに所定回、および６番の前記ティースに所定回、それぞれ逆方向に巻回されると共に、７番の前記ティースと８番の前記ティースとの間の前記スロットに１回挿通された前記巻線の端末部が接続され、５番の前記セグメントと１６番の前記セグメントとの間に、１番の前記ティースと２番の前記ティースとの間の前記スロットと、４番の前記ティースと５番の前記ティースとの間の前記スロットとに挿通された前記巻線の端末部が接続され、１６番の前記セグメントと２７番の前記セグメントとの間に、６番の前記ティースに所定回、逆方向に巻回されると共に、１番の前記ティースに所定回、逆方向に巻回され、かつ５番の前記ティースに１回、順方向に巻回された前記巻線の端末部が接続されていてもよい。 In this case, as in the third aspect of the present invention, between the 22nd segment and the 1st segment, the 1st tooth is wound a predetermined number of times in the forward direction, and the 6th segment. A terminal portion of the winding inserted once in the slot between the teeth and the 7th tooth is connected, and between the 12th segment and the 23rd segment, the 5th A predetermined number of times is wound around the teeth and a predetermined number of times around the teeth No. 8 and the end portions of the windings wound around the No. 4 teeth once in the forward direction are connected. Between the second segment and the thirteenth segment, the fourth tooth is wound a predetermined number of times in the forward direction, and the first and second teeth are between the first and second teeth. The end of the winding inserted once into the slot is connected. Between the segment No. 24 and the segment No. 14 and wound around the No. 8 tooth and a predetermined number of times around the No. 3 tooth in the opposite direction, A terminal portion of the winding wound once in the forward direction is connected to the teeth, and between the third segment and the fourteenth segment, a predetermined number of times on the eighth tooth, and 3 The end of the winding wound once in the slot between the teeth No. 4 and the teeth No. 5 is connected to the teeth of No. Between the 14th segment and the 25th segment, the slot between the 4th tooth and the 5th tooth, and the 7th tooth and the 8th tooth. Insert into the slot of The ends of the windings connected to each other are connected in a reverse direction between the fourth segment and the fifteenth segment, a predetermined number of times for the third tooth and a predetermined number of times for the sixth tooth. And a terminal portion of the winding wound in the forward direction once on the No. 2 tooth, and connected between the No. 15 segment and the No. 26 segment. It is wound in the opposite direction, respectively, around the No. teeth and predetermined times around the No. 6 teeth, and inserted once into the slot between the No. 7 teeth and the No. 8 teeth. And the end of the winding is connected, the slot between the 1st tooth and the 2nd tooth between the 5th segment and the 16th segment, and the 4th Teeth and No. 5 The ends of the windings inserted into the slots between are connected to each other, and wound between the 16th segment and the 27th segment around the 6th tooth in the reverse direction. In addition, a terminal portion of the winding wound around the first tooth a predetermined time in the reverse direction and wound around the fifth tooth once in the forward direction may be connected. .

このように構成することで、アーマチュアコアとコンミテータとの間の巻線の巻き太りを抑制できる。このため、電動モータの小型化を図りつつ、セグメントのライザと巻線とが干渉してしまうことを防止でき、巻線の損傷を確実に防止できる。 By comprising in this way, the winding thickness of the coil | winding between an armature core and a commutator can be suppressed. For this reason, it is possible to prevent the riser of the segment from interfering with the winding while reducing the size of the electric motor, and it is possible to reliably prevent the winding from being damaged.

本発明の第４の態様によれば、電動モータの巻線方法は、磁極数が６極の永久磁石が設けられているヨークと、前記ヨークの径方向内側に回転自在に設けられた回転軸と、前記回転軸に取り付けられ径方向に沿って放射状に延びる８つのティース、およびこれらティース間に形成される８つのスロットを有するアーマチュアコアと、各前記ティースに巻回される巻線と、前記回転軸に前記アーマチュアコアと隣接して設けられ３２枚のセグメントを周方向に配置したコンミテータと、前記セグメントを介して前記巻線に給電を行うためのブラシと、を備えた電動モータの巻線方法であって、前記８つのティースに、周方向に沿って順に番号を付し、さらに、前記３２枚のセグメントに、周方向に沿って順に番号を付し、Ｎを自然数としたとき、２２番の前記セグメントに前記巻線の巻き始め端を接続し、その後、１番の前記ティースに前記巻線を２Ｎ回、順方向に巻回した後、１番の前記セグメントに前記巻線を接続し、その後、１番の前記ティースに前記巻線を２Ｎ回、順方向に巻回した後、１２番の前記セグメントに前記巻線を接続し、その後、５番の前記ティースに前記巻線をＮ回、逆方向に巻回した後、８番の前記ティースに前記巻線をＮ回、逆方向に巻回し、さらに２３番の前記セグメントに前記巻線を接続し、その後、５番の前記ティースに前記巻線をＮ回、逆方向に巻回した後、８番の前記ティースに前記巻線をＮ回、逆方向に巻回し、さらに２番の前記セグメントに前記巻線を接続し、その後、４番の前記ティースに前記巻線を２Ｎ回、順方向に巻回した後、１３番の前記セグメントに前記巻線を接続し、その後、４番の前記ティースに前記巻線を２Ｎ回、順方向に巻回した後、２４番の前記セグメントに前記巻線を接続し、その後、８番の前記ティースに前記巻線をＮ回、逆方向に巻回した後、３番の前記ティースに前記巻線をＮ回、逆方向に巻回し、さらに３番の前記セグメントに前記巻線を接続し、その後、８番の前記ティースに前記巻線をＮ回、逆方向に巻回した後、３番の前記ティースに前記巻線をＮ回、逆方向に巻回し、さらに１４番の前記セグメントに前記巻線を接続し、その後、７番の前記ティースに前記巻線を２Ｎ回、順方向に巻回した後、２５番の前記セグメントに前記巻線を接続し、その後、７番の前記ティースに前記巻線を２Ｎ回、順方向に巻回した後、４番の前記セグメントに前記巻線を接続し、その後、３番の前記ティースに前記巻線をＮ回、逆方向に巻回した後、６番の前記ティースに前記巻線をＮ回、逆方向に巻回し、さらに、１５番の前記セグメントに前記巻線を接続し、その後、３番の前記ティースに前記巻線をＮ回、逆方向に巻回した後、６番の前記ティースに前記巻線をＮ回、逆方向に巻回し、さらに、２６番の前記セグメントに前記巻線を接続し、その後、２番の前記ティースに前記巻線を２Ｎ回、順方向に巻回した後、５番の前記セグメントに前記巻線を接続し、その後、２番の前記ティースに前記巻線を２Ｎ回、順方向に巻回した後、１６番の前記セグメントに前記巻線を接続し、その後、６番の前記ティースに前記巻線をＮ回、逆方向に巻回した後、１番の前記ティースに前記巻線をＮ回、逆方向に巻回し、さらに、２７番の前記セグメントに前記巻線を接続し、その後、６番の前記ティースに前記巻線をＮ回、逆方向に巻回した後、１番の前記ティースに前記巻線をＮ回、逆方向に巻回し、さらに、６番の前記セグメントに前記巻線の巻き終わり端を接続して第１アーマチュアコイルを形成し、前記第１アーマチュアコイルと前記回転軸を中心にして点対称となるように、第２アーマチュアコイルを形成した。 According to the fourth aspect of the present invention, the winding method of the electric motor includes a yoke provided with a permanent magnet having six magnetic poles, and a rotary shaft rotatably provided inside the yoke in the radial direction. An armature core having eight teeth attached to the rotating shaft and extending radially along the radial direction, and eight slots formed between the teeth; a winding wound around each of the teeth; Winding of an electric motor comprising: a commutator provided on a rotating shaft adjacent to the armature core and having 32 segments arranged in the circumferential direction; and a brush for supplying power to the winding through the segments In the method, the eight teeth are sequentially numbered along the circumferential direction, and the 32 segments are numbered sequentially along the circumferential direction, where N is a natural number. The winding start end of the winding is connected to the No. 22 segment, and then the winding is wound in the forward direction 2N times on the No. 1 tooth, and then the winding is applied to the No. 1 segment. After that, after winding the winding around the No. 1 tooth 2N times in the forward direction, the winding is connected to the No. 12 segment, and then the winding around the No. 5 tooth. Is wound N times in the reverse direction, and then the coil is wound N times in the reverse direction on the tooth No. 8, and the coil is connected to the segment No. 23. After winding the winding around the teeth N times in the reverse direction, winding the winding around the No. 8 tooth N times in the reverse direction, and connecting the winding to the No. 2 segment. Then, after winding the winding 2N times around the No. 4 tooth in the forward direction, The winding is connected to the segment of No. 4, and then the winding is wound in the forward direction 2N times on the No. 4 tooth, and then the winding is connected to the No. 24 segment. After winding the winding around the tooth No. N times in the reverse direction, winding the winding around the No. 3 tooth N times in the reverse direction, and further winding the winding around the No. 3 segment After that, the winding was wound N times on the teeth No. 8 in the reverse direction, and then the winding was wound N times on the teeth No. 3 in the reverse direction. The winding is connected to the segment, and then the winding is wound in the forward direction 2N times on the 7th tooth, and then the winding is connected to the 25th segment. After winding the winding around the teeth 2N times in the forward direction, The winding is connected, and then the winding is wound N times on the third tooth in the reverse direction, and then the winding is wound N times on the sixth tooth in the reverse direction. , Connecting the winding to the segment of No. 15 and then winding the winding on the No. 3 tooth N times in the reverse direction, and then turning the winding to the No. 6 tooth N times, Winding in the reverse direction, and further connecting the winding to the 26th segment, and then winding the winding on the 2nd tooth in the forward direction 2N times, then to the 5th segment The winding is connected, and then the winding is wound in the forward direction 2N times on the second tooth, and then the winding is connected to the 16th segment, and then the sixth tooth. After winding the winding N times in the reverse direction, the winding is wound N times on the first tooth. Then, the winding is connected to the No. 27 segment, and then the winding is wound N times on the No. 6 tooth in the opposite direction, and then the No. 1 tooth is The winding is wound N times in the reverse direction, and the winding end of the winding is connected to the No. 6 segment to form a first armature coil, and the first armature coil and the rotating shaft are centered. Thus, the second armature coil was formed so as to be point-symmetric.

このような巻線方法とすることで、第１アーマチュアコイルと第２アーマチュアコイルとを、それぞれ一連に形成することができる。このため、巻線の巻回作業の効率化を図ることができ、電動モータの製造コストをさらに低減できる。 By setting it as such a winding method, a 1st armature coil and a 2nd armature coil can each be formed in series. For this reason, the winding work efficiency can be improved, and the manufacturing cost of the electric motor can be further reduced.

本発明の第５の態様によれば、電動モータの巻線方法は、磁極数が６極の永久磁石が設けられているヨークと、前記ヨークの径方向内側に回転自在に設けられた回転軸と、前記回転軸に取り付けられ径方向に沿って放射状に延びる８つのティース、およびこれらティース間に形成される８つのスロットを有するアーマチュアコアと、各前記ティースに巻回される巻線と、前記回転軸に前記アーマチュアコアと隣接して設けられ３２枚のセグメントを周方向に配置したコンミテータと、前記セグメントを介して前記巻線に給電を行うためのブラシと、を備えた電動モータの巻線方法であって、前記８つのティースに、周方向に沿って順に番号を付し、さらに、前記３２枚のセグメントに、周方向に沿って順に番号を付したとき、２２番の前記セグメントに前記巻線の巻き始め端を接続し、その後、６番の前記ティースと７番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、１番の前記ティースに前記巻線を所定回、順方向に巻回した後、３番の前記ティースと４番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、１２番の前記セグメントに前記巻線を接続し、その後、４番の前記ティースに前記巻線を１回巻回し、その後、５番の前記ティースに前記巻線を所定回、逆方向に巻回した後、８番の前記ティースに前記巻線を所定回、逆方向に巻回し、さらに、６番の前記ティースと７番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、２３番の前記セグメントに前記巻線を接続した後、６番の前記ティースと７番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、５番の前記ティースに前記巻線を所定回、逆方向に巻回した後、８番の前記ティースに前記巻線を所定回、逆方向に巻回し、その後、１番の前記ティースと２番の前記ティースとの間の前記スロットに、前記巻線を挿通し、さらに２番の前記セグメントに前記巻線を接続し、その後、１番の前記ティースと２番の前記ティースとの間の前記スロットに、前記巻線を挿通し、４番の前記ティースに前記巻線を所定回、順方向に巻回した後、１３番の前記セグメントに前記巻線を接続し、その後、４番の前記ティースに前記巻線を所定回、順方向に巻回した後、６番の前記ティースと７番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、２４番の前記セグメントに前記巻線を接続し、その後、７番の前記ティースに前記巻線を１回巻回し、その後、８番の前記ティースに前記巻線を所定回、逆方向に巻回した後、３番の前記ティースに前記巻線を所定回、逆方向に巻回し、その後、１番の前記ティースと２番の前記ティースとの間の前記スロットに、前記巻線を挿通した後、３番の前記セグメントに前記巻線を接続し、その後、１番の前記ティースと２番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、８番の前記ティースに前記巻線を所定回、逆方向に巻回した後、３番の前記ティースに前記巻線を所定回、逆方向に巻回し、その後、４番の前記ティースと５番の前記ティースとの間の前記スロットに、前記巻線を挿通した後、１４番の前記セグメントに前記巻線を接続し、その後、４番の前記ティースと５番の前記ティースとの間の前記スロットに、前記巻線を挿通し、７番の前記ティースに前記巻線を所定回、順方向に巻回した後、２５番の前記セグメントに前記巻線を接続し、その後、７番の前記ティースに前記巻線を所定回、順方向に巻回した後、１番の前記ティースと２番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、４番の前記セグメントに前記巻線を接続し、その後、２番の前記ティースに前記巻線を１回巻回し、その後、３番の前記ティースに前記巻線を所定回、逆方向に巻回した後、６番の前記ティースに前記巻線を所定回、逆方向に巻回し、その後、４番の前記ティースと５番の前記ティースとの間の前記スロットに、前記巻線を挿通した後、１５番の前記セグメントに前記巻線を接続し、その後、４番の前記ティースと５番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、３番の前記ティースに前記巻線を所定回、逆方向に巻回した後、６番の前記ティースに前記巻線を所定回、逆方向に巻回し、その後、４番の前記ティースと５番の前記ティースとの間の前記スロットに、前記巻線を挿通した後、２６番の前記セグメントに前記巻線を接続し、その後、７番の前記ティースと８番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、２番の前記ティースに前記巻線を所定回、順方向に巻回した後、５番の前記セグメントに前記巻線を接続し、その後、１番の前記ティースと２番の前記ティースとの間の前記スロットと、４番の前記ティースと５番の前記ティースとの間の前記スロットとに、それぞれ前記巻線を挿通して１６番の前記セグメントに前記巻線を接続し、その後、５番の前記ティースに前記巻線を１回巻回し、その後、６番の前記ティースに前記巻線を所定回、逆方向に巻回した後、１番の前記ティースに前記巻線を所定回、逆方向に巻回し、その後、７番の前記ティースと８番の前記ティースとの間の前記スロットに、前記巻線を挿通した後、２７番の前記セグメントに前記巻線を接続し、その後、７番の前記ティースと８番の前記ティースとの間の前記スロットに、前記巻線を挿通し、その後、６番の前記ティースに前記巻線を所定回、逆方向に巻回した後、１番の前記ティースに前記巻線を所定回、逆方向に巻回し、その後、２番の前記ティースと３番の前記ティースとの間の前記スロットに、前記巻線を挿通した後、６番の前記セグメントに前記巻線の巻き終わり端を接続して第１アーマチュアコイルを形成し、前記第１アーマチュアコイルと前記回転軸を中心にして点対称となるように、第２アーマチュアコイルを形成した。 According to the fifth aspect of the present invention, the winding method of the electric motor includes a yoke provided with a permanent magnet having six magnetic poles, and a rotary shaft provided rotatably in the radial direction of the yoke. An armature core having eight teeth attached to the rotating shaft and extending radially along the radial direction, and eight slots formed between the teeth; a winding wound around each of the teeth; Winding of an electric motor comprising: a commutator provided on a rotating shaft adjacent to the armature core and having 32 segments arranged in the circumferential direction; and a brush for supplying power to the winding through the segments In the method, when the eight teeth are sequentially numbered along the circumferential direction and the 32 segments are sequentially numbered along the circumferential direction, the number 22 The winding start end of the winding is connected to the attachment, and then the winding is inserted into the slot between the 6th tooth and the 7th tooth, and then to the 1st tooth. After winding the winding a predetermined number of times in the forward direction, the winding is inserted into the slot between the third tooth and the fourth tooth, and then wound around the twelfth segment. After the wire is connected, the winding is wound around the 4th tooth once, and then the winding is wound around the 5th tooth in the reverse direction, and then the 8th tooth. The winding is wound in a reverse direction a predetermined number of times, and the winding is inserted into the slot between the 6th tooth and the 7th tooth, and then into the 23rd segment. After connecting the windings, No. 6 teeth and No. 7 teeth The winding is inserted into the slot between the teeth, and then the winding is wound around the 5th tooth in the reverse direction, and then the winding is placed on the 8th tooth. Winding in the reverse direction, and then inserting the winding into the slot between the first tooth and the second tooth, and connecting the winding to the second segment, Thereafter, the winding is inserted into the slot between the first tooth and the second tooth, and the winding is wound around the fourth tooth a predetermined number of times in the forward direction. The winding is connected to the segment of the number No., and then the winding is wound around the No. 4 tooth in the forward direction, and then between the No. 6 teeth and the No. 7 teeth. Insert the winding into the slot and then the 24th segment The winding is connected to the No. 7 tooth, and then the winding is wound once on the No. 7 tooth, and then the winding is wound on the No. 8 tooth in the reverse direction for a predetermined number of times. Winding the winding around the teeth a predetermined number of times in the reverse direction, and then inserting the winding into the slot between the first tooth and the second tooth, The winding is connected to a segment, and then the winding is inserted into the slot between the first tooth and the second tooth, and then the predetermined winding is placed on the eighth tooth. After winding in the reverse direction, the winding is wound around the third tooth in the reverse direction a predetermined number of times, and then in the slot between the fourth tooth and the fifth tooth, After inserting the winding, connect the winding to the 14th segment, and Thereafter, the winding is inserted into the slot between the 4th tooth and the 5th tooth, and the winding is wound around the 7th tooth in the forward direction by a predetermined number of times. The winding is connected to the segment of the number No., and then the winding is wound around the No. 7 tooth in the forward direction, and then between the No. 1 teeth and the No. 2 teeth. The winding is inserted into the slot, and then the winding is connected to the fourth segment, and then the winding is wound once around the second tooth, and then the third tooth. The winding is wound in the reverse direction a predetermined number of times, and then the winding is wound in the reverse direction a predetermined number of times in the sixth tooth, and then the fourth tooth and the fifth tooth After inserting the winding into the slot between, to the 15th segment The winding is connected, and then the winding is inserted into the slot between the fourth tooth and the fifth tooth, and then the winding is passed through the third tooth a predetermined number of times. After winding in the reverse direction, the winding is wound around the 6th tooth in the reverse direction a predetermined number of times, and then the winding is placed in the slot between the 4th tooth and the 5th tooth. After the wire is inserted, the winding is connected to the 26th segment, and then the winding is inserted into the slot between the 7th tooth and the 8th tooth. After winding the winding around the teeth of the number in the forward direction, connect the windings to the segment of the number 5, and then between the teeth 1 and 2 Between the slot, the 4th tooth and the 5th tooth The windings are inserted into the slots, respectively, and the windings are connected to the 16th segment, and then the windings are wound once around the 5th tooth, and then the 6th After winding the winding around the teeth a predetermined number of times in the reverse direction, winding the winding around the first tooth a predetermined number of times in the reverse direction, then, the No. 7 teeth and the No. 8 teeth After inserting the winding into the slot between, connect the winding to the segment of No. 27, and then into the slot between the teeth of No. 7 and the teeth of No. 8, After winding the winding, and then winding the winding around the sixth tooth a predetermined number of times in the reverse direction, winding the winding around the first tooth a predetermined number of times in the reverse direction, The slot between the second tooth and the third tooth After the winding is inserted, the winding end of the winding is connected to the No. 6 segment to form a first armature coil, and the first armature coil and the rotation axis are point-symmetric. The 2nd armature coil was formed so that it might become.

このような巻線方法とすることで、アーマチュアコアとコンミテータとの間の巻線の巻き太りを抑制できる。このため、電動モータの小型化を図りつつ、セグメントのライザと巻線とが干渉してしまうことを防止でき、巻線の損傷を確実に防止できる。 By setting it as such a winding method, the winding thickening of the winding between an armature core and a commutator can be suppressed. For this reason, it is possible to prevent the riser of the segment from interfering with the winding while reducing the size of the electric motor, and it is possible to reliably prevent the winding from being damaged.

上述の電動モータおよび電動モータの巻線方法によれば、磁極数を６極、スロットの数を８つとしながら、セグメントの数を３２とすることができる。このため、電動モータの体格を大型化することなく、セグメント間の電圧を低減でき、ブラシのさらなる延命化を図ることができる。
また、従来のように短絡線を用いることなく、ブラシの個数を低減できる。このため、電動モータの製造コストを低減できる。
さらに、アーマチュアコアとコンミテータとの間の巻線の巻き太りを抑制できる。このため、電動モータの小型化を図りつつ、セグメントのライザと巻線とが干渉してしまうことを防止でき、巻線の損傷を確実に防止できる。According to the electric motor and the winding method of the electric motor described above, the number of segments can be 32 while the number of magnetic poles is 6 and the number of slots is 8. For this reason, the voltage between segments can be reduced and the life of the brush can be further extended without increasing the size of the electric motor.
Further, the number of brushes can be reduced without using a short-circuit wire as in the prior art. For this reason, the manufacturing cost of an electric motor can be reduced.
Further, it is possible to suppress the winding of the winding between the armature core and the commutator. For this reason, it is possible to prevent the riser of the segment from interfering with the winding while reducing the size of the electric motor, and it is possible to reliably prevent the winding from being damaged.

本発明の第１実施形態における電動モータの構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the electric motor in 1st Embodiment of this invention. 本発明の第１実施形態におけるアーマチュアコイルの図示を省略した図１のＡ−Ａ線に沿う断面図である。It is sectional drawing which follows the AA line | wire of FIG. 1 which abbreviate | omitted illustration of the armature coil in 1st Embodiment of this invention. 本発明の第１実施形態におけるアーマチュアの展開図である。It is an expanded view of the armature in 1st Embodiment of this invention. 本発明の第１実施形態におけるアーマチュアの展開図である。It is an expanded view of the armature in 1st Embodiment of this invention. 本発明の第２実施形態におけるアーマチュアの展開図である。It is an expanded view of the armature in 2nd Embodiment of this invention. 本発明の第２実施形態におけるアーマチュアの展開図である。It is an expanded view of the armature in 2nd Embodiment of this invention. 本発明の第２実施形態における巻線の巻回手順を示す説明図である。It is explanatory drawing which shows the winding procedure of the coil | winding in 2nd Embodiment of this invention.

次に、本発明の実施形態を図面に基づいて説明する。 Next, embodiments of the present invention will be described with reference to the drawings.

（電動モータ）
図１は、電動モータ１の構成を示す縦断面図、図２は、図１のＡ−Ａ線に沿う断面図であって、アーマチュアコイル７の図示を省略している。
図１、図２に示すように、電動モータ１はいわゆるＤＣブラシ付モータであって、例えば、自動車のラジエータ冷却用のファンモータとして用いられる。電動モータ１は、有底円筒形状のヨーク２内に回転自在に設けられたアーマチュア３を備え、ヨーク２の開口部２ｃをエンドブラケット１７で覆蓋している。そして、電動モータ１はアーマチュア３の回転軸５が水平方向に沿うような状態で自動車のラジエータに取り付けられている。(Electric motor)
FIG. 1 is a longitudinal sectional view showing the configuration of the electric motor 1, and FIG. 2 is a sectional view taken along the line AA in FIG. 1, and the illustration of the armature coil 7 is omitted.
As shown in FIGS. 1 and 2, the electric motor 1 is a so-called DC brush motor, and is used, for example, as a fan motor for cooling an automobile radiator. The electric motor 1 includes an armature 3 that is rotatably provided in a bottomed cylindrical yoke 2 and covers an opening 2 c of the yoke 2 with an end bracket 17. And the electric motor 1 is attached to the radiator of the motor vehicle with the rotating shaft 5 of the armature 3 along the horizontal direction.

（ヨーク）
ヨーク２の周壁２ａには、内面に周方向に沿って瓦状の永久磁石４が６個配置されている。これら永久磁石４は、周方向に沿って磁極が順番となるように配置されている。
また、ヨーク２のエンド部（底部）２ｂには、径方向略中央に凹部１０が形成されている。この凹部１０の大部分に、軸方向外側に向かって突出するボス部１０ａが形成されている。このボス部１０ａには、アーマチュア３の回転軸５の一端（図１における左側端）を挿通するための挿通孔１１が形成されていると共に、回転軸５の一端側を回転自在に支持するための軸受１２が内嵌されている。(yoke)
Six tile-shaped permanent magnets 4 are arranged on the inner surface of the peripheral wall 2a of the yoke 2 along the circumferential direction. These permanent magnets 4 are arranged so that the magnetic poles are in order along the circumferential direction.
In addition, a concave portion 10 is formed in the end portion (bottom portion) 2b of the yoke 2 at a substantially radial center. A boss portion 10 a that protrudes outward in the axial direction is formed in the majority of the recess 10. The boss portion 10a is formed with an insertion hole 11 through which one end (the left end in FIG. 1) of the rotary shaft 5 of the armature 3 is inserted, and for rotatably supporting one end side of the rotary shaft 5. The bearing 12 is fitted inside.

（アーマチュア）
アーマチュア３は、回転軸５に外嵌固定されたアーマチュアコア６と、アーマチュアコア６に巻回されたアーマチュアコイル７と、回転軸５の他端側（図１における右側）に配置されたコンミテータ１３と、により構成されている。
図２に詳示するように、アーマチュアコア６は、複数の金属板を軸方向に積層したり、軟磁性粉末を加圧成形したりすることにより形成される。アーマチュアコア６は、回転軸５に外嵌固定される略円環状の回転軸固定部６１を有している。回転軸固定部６１に形成されている挿通孔６１ａに回転軸５が圧入固定されている。(Armature)
The armature 3 includes an armature core 6 that is externally fitted and fixed to the rotary shaft 5, an armature coil 7 that is wound around the armature core 6, and a commutator 13 that is disposed on the other end side (right side in FIG. 1) of the rotary shaft 5. And is constituted by.
As shown in detail in FIG. 2, the armature core 6 is formed by laminating a plurality of metal plates in the axial direction or pressure-molding soft magnetic powder. The armature core 6 has a substantially annular rotary shaft fixing portion 61 that is fitted and fixed to the rotary shaft 5. The rotary shaft 5 is press-fitted and fixed in an insertion hole 61 a formed in the rotary shaft fixing portion 61.

この回転軸固定部６１の径方向外側には、回転軸固定部６１と同心円上に形成された外側環状部６２が設けられている。これら回転軸固定部６１と外側環状部６２との間には、両者６１，６２に跨り、互いを連結するスポーク部６３が周方向に等間隔で複数本（例えば、本実施形態では１０本）設けられている。すなわち、アーマチュアコア６には、回転軸固定部６１、外側環状部６２、およびスポーク部６３によって、軸方向に貫通し、かつ軸方向平面視略扇状の貫通孔６４が複数（例えば、本実施形態では１０個）形成されていることになる。なお、外側環状部６２は、回転軸固定部６１およびスポーク部６３よりも厚肉に形成されている。 An outer annular portion 62 formed concentrically with the rotation shaft fixing portion 61 is provided on the outer side in the radial direction of the rotation shaft fixing portion 61. Between the rotary shaft fixing portion 61 and the outer annular portion 62, a plurality of spoke portions 63 are provided at equal intervals in the circumferential direction across the both 61 and 62 (for example, 10 in this embodiment). Is provided. In other words, the armature core 6 includes a plurality of through holes 64 that penetrate in the axial direction and are substantially fan-shaped in a plan view in the axial direction by the rotating shaft fixing portion 61, the outer annular portion 62, and the spoke portion 63 (for example, in the present embodiment). 10). The outer annular portion 62 is formed thicker than the rotating shaft fixing portion 61 and the spoke portion 63.

外側環状部６２の径方向外側には、軸方向平面視略Ｔ字状のティース３６が周方向に沿って等間隔に８個放射状に形成されている。隣接するティース３６間には、蟻溝状のスロット３７が形成されている。スロット３７は軸方向に沿って延びており、周方向に沿って等間隔に８個形成されている。そして、このスロット３７にエナメル被覆の巻線３８（図３参照）が通され、ティース３６に装着されている不図示のインシュレータの上から巻線３８が巻回されている。これにより、アーマチュアコア６の外周に、複数のアーマチュアコイル７が形成される。なお、巻線３８の巻回方法についての詳細は、後述する。 On the radially outer side of the outer annular portion 62, eight teeth 36 that are substantially T-shaped in an axial plan view are formed radially at equal intervals along the circumferential direction. Between adjacent teeth 36, a dovetail slot 37 is formed. The slots 37 extend along the axial direction, and eight slots 37 are formed at equal intervals along the circumferential direction. An enamel-coated winding 38 (see FIG. 3) is passed through the slot 37, and the winding 38 is wound from above an insulator (not shown) attached to the tooth 36. As a result, a plurality of armature coils 7 are formed on the outer periphery of the armature core 6. Details of the winding method of the winding 38 will be described later.

図１に詳示するように、回転軸５の他端側に配置されたコンミテータ１３は、回転軸５に外嵌固定され円柱状に形成されている樹脂モールド体４０と、この樹脂モールド体４０の外周面に露出配設された複数のセグメント４１と、により構成されている。セグメント４１は、軸方向に長い板状の金属片により形成されたものであって、互いに絶縁された状態で周方向に沿って等間隔に並列に固定されている。 As shown in detail in FIG. 1, the commutator 13 disposed on the other end side of the rotary shaft 5 includes a resin mold body 40 that is externally fixed to the rotary shaft 5 and formed in a columnar shape, and the resin mold body 40. And a plurality of segments 41 exposed and disposed on the outer peripheral surface. The segments 41 are formed by plate-like metal pieces that are long in the axial direction, and are fixed in parallel at equal intervals along the circumferential direction in a state of being insulated from each other.

ここで、本実施形態では、セグメント４１の枚数が３２枚に設定されている。すなわち、電動モータ１は、永久磁石４（磁極数）が６個（６極）、スロット３７の数が８、セグメント４１の数が３２のいわゆる６極８スロット３２セグメントの直流モータである。
各セグメント４１のアーマチュアコア６側の端部には、外径側に折り返す形で折り曲げられたライザ４３が一体成形されている。ライザ４３はセグメント４１にアーマチュアコイル７を接続させるためのものであって、アーマチュアコイル７を構成する巻線３８が掛け回され、ヒュージングにより固定される。これにより、セグメント４１とこれに対応するアーマチュアコイル７とが電気的に接続される。Here, in the present embodiment, the number of segments 41 is set to 32. That is, the electric motor 1 is a so-called 6-pole 8-slot 32-segment DC motor having 6 permanent magnets 4 (number of magnetic poles), 8 slots 37, and 32 segments 41.
A riser 43 is integrally formed at the end of each segment 41 on the armature core 6 side, and is bent in a manner of folding back to the outer diameter side. The riser 43 is for connecting the armature coil 7 to the segment 41, and a winding 38 constituting the armature coil 7 is wound around and fixed by fusing. Thereby, the segment 41 and the armature coil 7 corresponding to this are electrically connected.

（エンドブラケット）
ヨーク２の開口部２ｃを覆蓋しているエンドブラケット１７は、略円板状に形成されており、中央の大部分に外側に向かって突出する凸部１５が形成されている。凸部１５を形成することによって、内面側が凹状になる。この凹状の凸部１５の内面側は、後述するブラシ２２を収納するための収納凹部１６として機能する。
凸部１５のエンド部（底部）１５ａには、径方向略中央に、段差によってさらに外側に突出するボス部１８が形成されている。このボス部１８には、回転軸５の他端側を回転自在に支持するための軸受１９が圧入固定されている。(End bracket)
The end bracket 17 that covers the opening 2c of the yoke 2 is formed in a substantially disk shape, and a convex portion 15 that protrudes outward is formed in a large part of the center. By forming the convex portion 15, the inner surface side becomes concave. The inner surface side of the concave convex portion 15 functions as an accommodating concave portion 16 for accommodating a brush 22 described later.
A boss portion 18 is formed on the end portion (bottom portion) 15a of the convex portion 15 so as to protrude further outward due to a step at a substantially central portion in the radial direction. A bearing 19 for rotatably supporting the other end side of the rotating shaft 5 is press-fitted and fixed to the boss portion 18.

エンドブラケット１７の外周部側には、外側に向かって延出するステー９が設けられている。このステー９は、電動モータ１を固定するときに使用されるものであって、不図示のボルトを挿通可能な挿通孔９ａが形成されている。
また、エンドブラケット１７の収納凹部１６には、ホルダステー２０が取り付けられている。ホルダステー２０は、樹脂製で略円板状に形成されたものであって、この内面にブラシホルダ２１が２つ固定されている。A stay 9 is provided on the outer peripheral side of the end bracket 17 and extends outward. The stay 9 is used when the electric motor 1 is fixed, and has an insertion hole 9a into which a bolt (not shown) can be inserted.
A holder stay 20 is attached to the storage recess 16 of the end bracket 17. The holder stay 20 is made of resin and formed in a substantially disc shape, and two brush holders 21 are fixed to the inner surface.

ブラシホルダ２１は真鋳などで直方体の箱状に形成されたものであって、その長手方向が径方向に沿うように配置され、かつ互いに回転軸５を中心にして対向配置されている。
ブラシホルダ２１には、それぞれブラシ２２がコイルスプリング２３を介して付勢された状態でコンミテータ１３に対して進退自在に内装されている。
これらブラシ２２の先端部は、コイルスプリング２３によって付勢されているため、コンミテータ１３のセグメント４１に摺接した状態になる。ブラシ２２は、ピグテールを介して外部電源（何れも不図示）に電気的に接続されている。このため、セグメント４１に摺接することにより、このセグメント４１を介してアーマチュアコイル７に電圧が印加される。The brush holder 21 is formed in a rectangular parallelepiped box shape by brass or the like, and is arranged so that the longitudinal direction thereof is along the radial direction, and is opposed to each other around the rotation shaft 5.
The brush holder 21 is provided with a brush 22 that is urged via a coil spring 23 so that the brush 22 can advance and retreat relative to the commutator 13.
Since the tips of the brushes 22 are urged by the coil springs 23, they are in sliding contact with the segments 41 of the commutator 13. The brush 22 is electrically connected to an external power source (both not shown) via a pigtail. For this reason, a voltage is applied to the armature coil 7 via the segment 41 by making sliding contact with the segment 41.

（第１実施形態）
（アーマチュアコイルの巻回構造）
次に、図３、図４に基づいて、アーマチュアコイル７の巻回構造について説明する。
図３、図４は、それぞれアーマチュア３の展開図であり、隣接するティース３６間の空隙がスロット３７に相当している。なお、以下の図３、図４においては、各セグメント４１、および各ティース３６にそれぞれ周方向に順番に番号を付して説明する。(First embodiment)
(Wound structure of armature coil)
Next, the winding structure of the armature coil 7 will be described with reference to FIGS.
3 and 4 are development views of the armature 3, and a gap between adjacent teeth 36 corresponds to the slot 37. In the following FIGS. 3 and 4, each segment 41 and each tooth 36 will be described by sequentially numbering them in the circumferential direction.

図３、図４に示すように、本実施形態では、１番のティース３６の周方向中央と、１番のセグメント４１の周方向中央とが同一直線上に位置するように配置されている。しかしながら、これに限られるものではなく、１番のティース３６の周方向中央の位置と、１番のセグメント４１の周方向中央の位置とが互いにずれていてもよい。すなわち、各ティース３６、各セグメント４１共に、番号の割り当てが周方向に順番になっており、巻回や接続される巻線３８のティース３６の番号とセグメント４１の番号との関係が、以下に詳述する関係になっていればよい。 As shown in FIGS. 3 and 4, in the present embodiment, the circumferential center of the first tooth 36 and the circumferential center of the first segment 41 are arranged on the same straight line. However, the present invention is not limited to this, and the circumferential center position of the first tooth 36 and the circumferential center position of the first segment 41 may be shifted from each other. That is, each tooth 36 and each segment 41 are assigned numbers in order in the circumferential direction, and the relationship between the numbers of the teeth 36 and the numbers of the segments 41 of the winding 38 to be wound or connected is as follows. It is sufficient that the relationship is described in detail.

ここで、アーマチュアコイル７は、巻線３８をダブルフライヤ方式によって巻回されることにより形成されている。ダブルフライヤ方式とは、巻線３８を引き回すために用いられる巻線機のフライヤ（不図示）を２つ用い、回転軸５を中心にして点対称となる関係で２箇所同時に巻線３８を巻回する方式をいう。
このため、アーマチュアコイル７は、大きく第１アーマチュアコイル７１（図３参照）と、第２アーマチュアコイル７２（図４参照）の２つのアーマチュアコイル７１，７２により構成される。Here, the armature coil 7 is formed by winding the winding 38 by a double flyer system. The double flyer method uses two flyers (not shown) of a winding machine used for routing the windings 38 and winds the windings 38 at two locations simultaneously in a point-symmetrical relationship about the rotating shaft 5. A method of turning.
For this reason, the armature coil 7 is mainly composed of two armature coils 71 and 72, which are a first armature coil 71 (see FIG. 3) and a second armature coil 72 (see FIG. 4).

すなわち、ダブルフライヤ方式を採用する場合、巻線３８の巻き始め端３８ａは２つ存在しており、それぞれ回転軸５を中心にして点対称位置に存在する２２番のセグメント４１（図３参照）と、６番のセグメント４１（図４参照）とに接続されている。つまり、２２番のセグメント４１のライザ４３と、６番のセグメント４１のライザ４３とに、それぞれ巻線３８の巻き始め端３８ａが掛け回されている。 That is, when the double flyer method is adopted, there are two winding start ends 38a of the winding 38, and each segment No. 22 exists in a point-symmetric position around the rotation shaft 5 (see FIG. 3). And the sixth segment 41 (see FIG. 4). That is, the winding start end 38a of the winding 38 is wound around the riser 43 of the 22nd segment 41 and the riser 43 of the 6th segment 41, respectively.

そして、２２番のセグメント４１から巻き始められる巻線３８と、６番セグメント４１から巻き始められる巻線３８の引き回し手順、つまり、第１アーマチュアコイル７１を形成する巻線３８の引き回し手順と、第２アーマチュアコイル７２を形成する巻線３８の引き回し手順は、回転軸５を中心にして点対称となる。このため、以下の説明では、第１アーマチュアコイル７１を形成する巻線３８の引き回し手順のみについて説明し、第２アーマチュアコイル７２を形成する巻線３８の引き回し手順についての説明を省略する。 Then, a winding procedure that starts winding from the 22nd segment 41 and a winding procedure that starts winding from the 6th segment 41, that is, a routing procedure of the winding 38 that forms the first armature coil 71, The routing procedure of the winding 38 that forms the two-armature coil 72 is point-symmetric about the rotation axis 5. Therefore, in the following description, only the routing procedure of the winding 38 forming the first armature coil 71 will be described, and the description of the routing procedure of the winding 38 forming the second armature coil 72 will be omitted.

また、以下の説明では、巻線３８の巻回方向が、時計回り方向である場合を順方向と称し、反時計回り方向である場合を逆方向と称して説明する。さらに、各ティース３６への巻線３８の巻回数は、自然数Ｎを用いて示す。なお、図３、図４では、巻線３８の巻回数が２Ｎ回である場合の巻線３８を実線で示し、巻線３８の巻回数がＮ回（実線で示す巻線３８の半分の巻回数）である場合の巻線３８を破線で示す。 In the following description, the case where the winding direction of the winding 38 is the clockwise direction will be referred to as the forward direction, and the case where the winding direction is the counterclockwise direction will be referred to as the reverse direction. Further, the number of turns of the winding 38 around each tooth 36 is indicated using a natural number N. 3 and 4, the winding 38 when the number of turns of the winding 38 is 2N is indicated by a solid line, and the number of turns of the winding 38 is N times (half the winding 38 indicated by the solid line). The winding 38 is indicated by a broken line.

図３に示すように、第１アーマチュアコイル７１を形成するには、まず、２２番のセグメント４１に巻線３８の巻き始め端３８ａを接続し、その後、１番のティース３６に巻線３８を２Ｎ回、順方向に巻回した後、１番のセグメント４１に巻線３８を接続する。
続いて、１番のティース３６に巻線３８を２Ｎ回、順方向に巻回した後、１２番のセグメント４１に巻線３８を接続する。As shown in FIG. 3, in order to form the first armature coil 71, first, the winding start end 38 a of the winding 38 is connected to the No. 22 segment 41, and then the winding 38 is attached to the No. 1 tooth 36. After winding in the forward direction 2N times, the winding 38 is connected to the first segment 41.
Subsequently, after winding the winding 38 around the first tooth 36 2N times in the forward direction, the winding 38 is connected to the 12th segment 41.

続いて、５番のティース３６に巻線３８をＮ回、逆方向に巻回した後、８番のティース３６に巻線３８をＮ回、逆方向に巻回し、さらに２３番のセグメント４１に巻線３８を接続する。
続いて、５番のティース３６に巻線３８をＮ回、逆方向に巻回した後、８番のティース３６に巻線３８をＮ回、逆方向に巻回し、さらに２番のセグメント４１に巻線３８を接続する。Subsequently, the winding 38 is wound N times on the fifth tooth 36 in the reverse direction, and then the winding 38 is wound N times on the eighth tooth 36 in the reverse direction. The winding 38 is connected.
Next, after winding the winding 38 around the fifth tooth 36 N times in the reverse direction, the winding 38 is wound N times around the eighth tooth 36 in the reverse direction, and further into the second segment 41. The winding 38 is connected.

続いて、４番のティース３６に巻線３８を２Ｎ回、順方向に巻回した後、１３番のセグメント４１に巻線３８を接続する。
続いて、４番のティース３６に巻線３８を２Ｎ回、順方向に巻回した後、２４番のセグメント４１に巻線３８を接続する。Subsequently, after winding the winding 38 around the fourth tooth 36 2N times in the forward direction, the winding 38 is connected to the 13th segment 41.
Subsequently, after winding the winding 38 around the fourth tooth 36 2N times in the forward direction, the winding 38 is connected to the 24th segment 41.

続いて、８番のティース３６に巻線３８をＮ回、逆方向に巻回した後、３番のティース３６に巻線３８をＮ回、逆方向に巻回し、さらに３番のセグメント４１に巻線３８を接続する。
続いて、８番のティース３６に巻線３８をＮ回、逆方向に巻回した後、３番のティース３６に巻線３８をＮ回、逆方向に巻回し、さらに１４番のセグメント４１に巻線３８を接続する。Subsequently, the winding 38 is wound N times on the eighth tooth 36 in the reverse direction, and then the winding 38 is wound N times on the third tooth 36 in the reverse direction. The winding 38 is connected.
Subsequently, the winding 38 is wound N times on the eighth tooth 36 in the reverse direction, and then the winding 38 is wound N times on the third tooth 36 in the reverse direction. The winding 38 is connected.

続いて、７番のティース３６に巻線３８を２Ｎ回、順方向に巻回した後、２５番のセグメント４１に巻線３８を接続する。
続いて、７番のティース３６に巻線３８を２Ｎ回、順方向に巻回した後、４番のセグメント４１に巻線３８を接続する。Subsequently, after winding the winding 38 around the 7th tooth 36 2N times in the forward direction, the winding 38 is connected to the 25th segment 41.
Subsequently, after winding the winding 38 around the No. 7 tooth 36 2N times in the forward direction, the winding 38 is connected to the No. 4 segment 41.

続いて、３番のティース３６に巻線３８をＮ回、逆方向に巻回した後、６番のティース３６に巻線３８をＮ回、逆方向に巻回し、さらに、１５番のセグメント４１に巻線３８を接続する。
続いて、３番のティース３６に巻線３８をＮ回、逆方向に巻回した後、６番のティース３６に巻線３８をＮ回、逆方向に巻回し、さらに、２６番のセグメント４１に巻線３８を接続する。Subsequently, after winding the winding 38 around the third tooth 36 N times in the reverse direction, winding the winding 38 around the sixth tooth 36 N times in the reverse direction, and further, the 15th segment 41 Winding 38 is connected to.
Subsequently, after winding the winding 38 around the third tooth 36 N times in the reverse direction, winding the winding 38 around the sixth tooth 36 N times in the reverse direction. Winding 38 is connected to.

続いて、２番のティース３６に巻線３８を２Ｎ回、順方向に巻回した後、５番のセグメント４１に巻線３８を接続する。
続いて、２番のティース３６に巻線３８を２Ｎ回、順方向に巻回した後、１６番のセグメント４１に巻線３８を接続する。Subsequently, after winding the winding 38 around the second tooth 36 2N times in the forward direction, the winding 38 is connected to the fifth segment 41.
Subsequently, after winding the winding 38 around the second tooth 36 2N times in the forward direction, the winding 38 is connected to the 16th segment 41.

続いて、６番のティース３６に巻線３８をＮ回、逆方向に巻回した後、１番のティース３６に巻線３８をＮ回、逆方向に巻回し、さらに、２７番のセグメント４１に巻線３８を接続する。
続いて、６番のティース３６に巻線３８をＮ回、逆方向に巻回した後、１番のティース３６に巻線３８をＮ回、逆方向に巻回し、さらに、６番のセグメント４１に巻線３８の巻き終わり端３８ｂを接続する。これにより、第１アーマチュアコイル７１の形成が完了する。Subsequently, the winding 38 is wound N times on the sixth tooth 36 in the reverse direction, the winding 38 is wound N times on the first tooth 36 in the reverse direction, and the 27th segment 41 is further wound. Winding 38 is connected to.
Subsequently, the winding 38 is wound N times on the sixth tooth 36 in the reverse direction, and then the winding 38 is wound N times on the first tooth 36 in the reverse direction. To the winding end 38b of the winding 38. Thereby, the formation of the first armature coil 71 is completed.

上記のように、第１アーマチュアコイル７１、および第２アーマチュアコイル７２は、それぞれ巻線３８により一連に連続して形成される。しかしながら、第１アーマチュアコイル７１、および第２アーマチュアコイル７２を形成する巻線３８を、セグメント４１に接続するごとに切断してもよい。つまり、第１アーマチュアコイル７１は、以下のように形成されていればよい。 As described above, the first armature coil 71 and the second armature coil 72 are each continuously formed in series by the winding 38. However, the winding 38 forming the first armature coil 71 and the second armature coil 72 may be cut every time it is connected to the segment 41. That is, the 1st armature coil 71 should just be formed as follows.

すなわち、２２番のセグメント４１と１番のセグメント４１との間に、１番のティース３６に２Ｎ回、順方向に巻回された巻線３８の端末部が接続されている。
１番のセグメント４１と１２番のセグメント４１との間に、１番のティース３６に２Ｎ回、順方向に巻回された巻線３８の端末部が接続されている。
１２番のセグメント４１と２３番のセグメント４１との間に、５番のティース３６にＮ回、逆方向に巻回されると共に、８番のティース３６にＮ回、逆方向に巻回された巻線３８の端末部が接続されている。That is, between the 22nd segment 41 and the 1st segment 41, the terminal portion of the winding 38 wound in the forward direction 2N times on the 1st tooth 36 is connected.
Between the first segment 41 and the twelfth segment 41, a terminal portion of a winding 38 wound around the first tooth 36 2N times in the forward direction is connected.
Between the 12th segment 41 and the 23rd segment 41, it was wound N times on the 5th tooth 36 in the reverse direction and N times on the 8th tooth 36 in the reverse direction. A terminal portion of the winding 38 is connected.

２３番のセグメント４１と２番のセグメント４１との間に、５番のティース３６にＮ回、逆方向に巻回されると共に、８番のティース３６にＮ回、逆方向に巻回された巻線３８の端末部が接続されている。
２番のセグメント４１と１３番のセグメント４１との間に、４番のティース３６に２Ｎ回、順方向に巻回された巻線３８の端末部が接続されている。
１３番のセグメント４１と２４番のセグメント４１との間に、４番のティース３６に２Ｎ回、順方向に巻回された巻線３８の端末部が接続されている。Between the No. 23 segment 41 and the No. 2 segment 41, the No. 5 tooth 36 was wound N times in the reverse direction, and the No. 8 tooth 36 was wound N times in the reverse direction. A terminal portion of the winding 38 is connected.
Between the second segment 41 and the thirteenth segment 41, a terminal portion of a winding 38 wound in the forward direction on the fourth tooth 36 is connected 2N times.
Between the thirteenth segment 41 and the twenty-fourth segment 41, a terminal portion of a winding 38 wound in the forward direction on the fourth tooth 36 is connected 2N times.

２４番のセグメント４１と３番のセグメント４１との間に、８番のティース３６にＮ回、逆方向に巻回されると共に、３番のティース３６にＮ回、逆方向に巻回された巻線３８の端末部が接続されている。
３番のセグメント４１と１４番のセグメント４１との間に、８番のティース３６にＮ回、逆方向に巻回されると共に、３番のティース３６にＮ回、逆方向に巻回された巻線３８の端末部が接続されている。Between the 24th segment 41 and the 3rd segment 41, it was wound N times around the 8th tooth 36 in the reverse direction and at the same time N times wound around the 3rd tooth 36. A terminal portion of the winding 38 is connected.
Between No. 3 segment 41 and No. 14 segment 41, the No. 8 tooth 36 was wound N times in the reverse direction, and the No. 3 tooth 36 was wound N times in the reverse direction. A terminal portion of the winding 38 is connected.

１４番のセグメント４１と２５番のセグメント４１との間に、７番のティース３６に２Ｎ回、順方向に巻回された巻線３８の端末部が接続されている。
２５番のセグメント４１と４番のセグメント４１との間に、７番のティース３６に２Ｎ回、順方向に巻回された巻線３８の端末部が接続されている。
４番のセグメント４１と１５番のセグメント４１との間に、３番のティース３６にＮ回、逆方向に巻回されると共に、６番のティース３６にＮ回、逆方向に巻回された巻線３８の端末部が接続されている。Between the 14th segment 41 and the 25th segment 41, a terminal portion of a winding 38 wound in a forward direction 2N times on a 7th tooth 36 is connected.
Between the No. 25 segment 41 and the No. 4 segment 41, a terminal portion of a winding 38 wound in the forward direction 2N times on the No. 7 tooth 36 is connected.
Between the No. 4 segment 41 and the No. 15 segment 41, the No. 3 tooth 36 was wound N times in the reverse direction, and the No. 6 tooth 36 was wound N times in the reverse direction. A terminal portion of the winding 38 is connected.

１５番のセグメント４１と２６番のセグメント４１との間に、３番のティース３６にＮ回、逆方向に巻回されると共に、６番のティース３６にＮ回、逆方向に巻回された巻線３８の端末部が接続されている。
２６番のセグメント４１と５番のセグメント４１との間に、２番のティース３６に２Ｎ回、順方向に巻回された巻線３８の端末部が接続されている。
５番のセグメント４１と１６番のセグメント４１との間に、２番のティース３６に２Ｎ回、順方向に巻回された巻線３８の端末部が接続されている。Between No. 15 segment 41 and No. 26 segment 41, the No. 3 tooth 36 was wound N times in the reverse direction, and the No. 6 tooth 36 was wound N times in the reverse direction. A terminal portion of the winding 38 is connected.
Between the 26th segment 41 and the 5th segment 41, a terminal portion of a winding 38 wound in the forward direction 2N times on the second tooth 36 is connected.
Between the No. 5 segment 41 and the No. 16 segment 41, a terminal portion of a winding 38 wound around the No. 2 tooth 36 2N times in the forward direction is connected.

１６番のセグメント４１と２７番のセグメント４１との間に、６番のティース３６にＮ回、逆方向に巻回されると共に、１番のティース３６にＮ回、逆方向に巻回された巻線３８の端末部が接続されている。
２７番のセグメント４１と６番のセグメント４１との間に、６番のティース３６にＮ回、逆方向に巻回されると共に、１番のティース３６にＮ回、逆方向に巻回された巻線３８の端末部が接続されている。Between the No. 16 segment 41 and the No. 27 segment 41, the No. 6 tooth 36 was wound N times in the reverse direction, and the No. 1 tooth 36 was wound N times in the reverse direction. A terminal portion of the winding 38 is connected.
Between the No. 27 segment 41 and the No. 6 segment 41, the No. 6 tooth 36 was wound N times in the reverse direction and the No. 1 tooth 36 was wound N times in the reverse direction. A terminal portion of the winding 38 is connected.

なお、第２アーマチュアコイル７１は、上記に示す第１アーマチュアコイル７１に対して回転軸５を中心にして点対称に形成されていればよい。 The second armature coil 71 may be formed point-symmetrically with respect to the first armature coil 71 shown above with the rotation axis 5 as the center.

このように構成されたアーマチュアコイル７（第１アーマチュアコイル７１および第２アーマチュアコイル７２）は、８相構造になる。
８相のアーマチュアコイル７には、適正な磁界が発生し、この磁界とヨーク２の永久磁石４との間に生じる磁気的な吸引力や反発力により、アーマチュア３が回転する。この回転によって、ブラシ２２が摺接するセグメント４１が順次変更され、アーマチュアコイル７に流れる電流の向きが切替えられる、いわゆる整流が行われ、アーマチュア３が継続的に回転する。The armature coil 7 (the first armature coil 71 and the second armature coil 72) configured as described above has an eight-phase structure.
An appropriate magnetic field is generated in the eight-phase armature coil 7, and the armature 3 is rotated by a magnetic attractive force or a repulsive force generated between the magnetic field and the permanent magnet 4 of the yoke 2. As a result of this rotation, the segments 41 in sliding contact with the brush 22 are sequentially changed, so that the direction of the current flowing through the armature coil 7 is switched, so-called rectification is performed, and the armature 3 is continuously rotated.

したがって、上述の第１実施形態によれば、磁極数を６極、スロット３７の数を８つとしながら、セグメント４１の数を３２とすることができる。換言すれば、通常、８相構造のスロット３７では、セグメント４１の数は１６となるが、本実施形態では、セグメント４１の数を、２倍の３２とすることができる。このため、電動モータ１の体格を大型化することなく、セグメント間の電圧を低減でき、ブラシ２２のさらなる延命化を図ることができる。
また、従来のように短絡線を用いることなく、ブラシ２２の個数を低減できる。このため、電動モータ１の製造コストを低減できる。Therefore, according to the first embodiment described above, the number of segments 41 can be 32 while the number of magnetic poles is 6 and the number of slots 37 is 8. In other words, in the eight-phase structure slot 37, the number of segments 41 is usually 16, but in the present embodiment, the number of segments 41 can be doubled to 32. For this reason, the voltage between segments can be reduced and the life of the brush 22 can be further extended without increasing the size of the electric motor 1.
Further, the number of brushes 22 can be reduced without using a short-circuit wire as in the prior art. For this reason, the manufacturing cost of the electric motor 1 can be reduced.

（第２実施形態）
（アーマチュアコイルの巻回構造）
次に、図５〜図７に基づいて、第２実施形態について説明する。
図５、図６は、それぞれアーマチュア３の展開図であり、隣接するティース３６間の空隙がスロット３７に相当している。なお、第２実施形態において、前述の第１実施形態と同一態様には同一符号を付して説明を省略する。また、以下の図５、図７においては、前述の第１実施形態と同様に、各セグメント４１、および各ティース３６にそれぞれ周方向に順番に番号を付して説明する。(Second Embodiment)
(Wound structure of armature coil)
Next, a second embodiment will be described based on FIGS.
5 and 6 are development views of the armature 3, and a gap between adjacent teeth 36 corresponds to the slot 37. In the second embodiment, the same reference numerals are given to the same aspects as those in the first embodiment, and the description thereof is omitted. In the following FIG. 5 and FIG. 7, similarly to the first embodiment described above, each segment 41 and each tooth 36 will be described by sequentially numbering them in the circumferential direction.

図５、図６に示すように、本第２実施形態と前述の第１実施形態との相違点は、第２実施形態におけるアーマチュアコイル７の巻回構造と、第１実施形態におけるアーマチュアコイル７の巻回構造とが異なる点にある。
なお、第２実施形態のアーマチュアコイル７は、大きく第１アーマチュアコイル７１（図５参照）と、第２アーマチュアコイル７２（図６参照）の２つのアーマチュアコイル７１，７２により構成される点、アーマチュアコイル７は、巻線３８をダブルフライヤ方式によって巻回されることにより形成されている点は、前述の第１実施形態と同様である。As shown in FIGS. 5 and 6, the difference between the second embodiment and the first embodiment described above is that the winding structure of the armature coil 7 in the second embodiment and the armature coil 7 in the first embodiment. Is different from the winding structure.
Note that the armature coil 7 of the second embodiment is largely composed of two armature coils 71 and 72, a first armature coil 71 (see FIG. 5) and a second armature coil 72 (see FIG. 6). The coil 7 is the same as the first embodiment described above in that the coil 38 is formed by being wound by a double flyer system.

つまり、２２番のセグメント４１のライザ４３と、６番のセグメント４１のライザ４３とに、それぞれ巻線３８の巻き始め端３８ａが掛け回され、２つのアーマチュアコイル７１，７２が回転軸５を中心にして点対称に形成される。このため、以下の説明では、図５に示す第１アーマチュアコイル７１を形成する巻線３８の引き回し手順のみについて説明し、図６に示す第２アーマチュアコイル７２を形成する巻線３８の引き回し手順についての説明を省略する。 That is, the winding start end 38 a of the winding 38 is wound around the riser 43 of the 22nd segment 41 and the riser 43 of the 6th segment 41, and the two armature coils 71 and 72 are centered on the rotating shaft 5. Thus, it is formed point-symmetrically. For this reason, in the following description, only the routing procedure of the winding 38 forming the first armature coil 71 shown in FIG. 5 will be described, and the routing procedure of the winding 38 forming the second armature coil 72 shown in FIG. The description of is omitted.

図５に示すように、第１アーマチュアコイル７１を形成するには、まず、２２番のセグメント４１に巻線３８の巻き始め端３８ａを接続し、その後、６番のティース３６と７番のティース３６との間のスロット３７に巻線３８を挿通する。次に、１番のティース３６に巻線３８を所定回、順方向に巻回した後、１番のセグメント４１に巻線３８を接続する。
続いて、１番のティース３６に巻線３８を所定回、順方向に巻回した後、３番のティース３６と４番のティース３６との間のスロット３７に巻線３８を挿通する。その後、１２番のセグメント４１に巻線３８を接続する。As shown in FIG. 5, in order to form the first armature coil 71, first, the winding start end 38a of the winding 38 is connected to the No. 22 segment 41, and then the No. 6 teeth 36 and No. 7 teeth are connected. A winding 38 is inserted into a slot 37 between the windings 36. Next, the winding 38 is wound around the first tooth 36 in the forward direction, and then the winding 38 is connected to the first segment 41.
Subsequently, the winding 38 is wound around the first tooth 36 in the forward direction a predetermined number of times, and then the winding 38 is inserted into the slot 37 between the third tooth 36 and the fourth tooth 36. Thereafter, the winding 38 is connected to the 12th segment 41.

続いて、４番のティースに巻線３８を１回巻回する。次に、５番のティース３６に巻線３８を所定回、逆方向に巻回した後、８番のティース３６に巻線３８を所定回、逆方向に巻回する。次に６番のティース３６と７番のティース３６との間のスロット３７に巻線３８を挿通し、その後、２３番のセグメント４１に巻線３８を接続する。
続いて、６番のティース３６と７番のティース３６との間のスロット３７に巻線３８を挿通する。次に、５番のティース３６に巻線３８を所定回、逆方向に巻回した後、８番のティース３６に巻線３８を所定回、逆方向に巻回する。さらに、１番のティース３６と２番のティース３６との間のスロット３７に巻線３８を挿通した後、２番のセグメント４１に巻線３８を接続する。Subsequently, the winding 38 is wound once around the fourth tooth. Next, after winding the winding 38 around the fifth tooth 36 a predetermined number of times in the reverse direction, the winding 38 is wound around the eighth tooth 36 a predetermined number of times in the reverse direction. Next, the winding 38 is inserted into the slot 37 between the 6th tooth 36 and the 7th tooth 36, and then the winding 38 is connected to the 23rd segment 41.
Subsequently, the winding 38 is inserted into the slot 37 between the sixth tooth 36 and the seventh tooth 36. Next, after winding the winding 38 around the fifth tooth 36 a predetermined number of times in the reverse direction, the winding 38 is wound around the eighth tooth 36 a predetermined number of times in the reverse direction. Further, after the winding 38 is inserted into the slot 37 between the first tooth 36 and the second tooth 36, the winding 38 is connected to the second segment 41.

続いて、１番のティース３６と２番のティース３６との間のスロット３７に巻線３８を挿通し、４番のティース３６に巻線３８を所定回、順方向に巻回した後、１３番のセグメント４１に巻線３８を接続する。
続いて、４番のティース３６に巻線３８を所定回、順方向に巻回した後、６番のティース３６と７番のティース３６との間のスロット３７に巻線３８を挿通し、さらに２４番のセグメント４１に巻線３８を接続する。Subsequently, the winding 38 is inserted into the slot 37 between the first tooth 36 and the second tooth 36, and the winding 38 is wound around the fourth tooth 36 in the forward direction a predetermined number of times. The winding 38 is connected to the segment 41 of the number.
Subsequently, the winding 38 is wound around the fourth tooth 36 in a predetermined direction, and then the winding 38 is inserted into the slot 37 between the sixth tooth 36 and the seventh tooth 36. The winding 38 is connected to the 24th segment 41.

続いて、７番のティース３６に巻線３８を１回巻回した後、８番のティース３６に巻線３８を所定回、逆方向に巻回する。次に、３番のティース３６に巻線３８を所定回、逆方向に巻回し、さらに３番のセグメント４１に巻線３８を接続する。
続いて、１番のティース３６と２番のティース３６との間のスロット３７に巻線３８を挿通する。次に、８番のティース３６に巻線３８を所定回、逆方向に巻回した後、３番のティース３６に巻線３８を所定回、逆方向に巻回する。この後、４番のティース３６と５番のティース３６との間のスロット３７に巻線３８を挿通し、さらに１４番のセグメント４１に巻線３８を接続する。Subsequently, after winding the winding 38 around the 7th tooth 36 once, the winding 38 is wound around the 8th tooth 36 in the reverse direction a predetermined number of times. Next, a winding 38 is wound around the third tooth 36 a predetermined number of times in the reverse direction, and the winding 38 is connected to the third segment 41.
Subsequently, the winding 38 is inserted into the slot 37 between the first tooth 36 and the second tooth 36. Next, the winding 38 is wound around the eighth tooth 36 in the reverse direction a predetermined number of times, and then the winding 38 is wound around the third tooth 36 in the reverse direction a predetermined number of times. Thereafter, the winding 38 is inserted into the slot 37 between the fourth tooth 36 and the fifth tooth 36, and the winding 38 is connected to the 14th segment 41.

続いて、４番のティース３６と５番のティース３６との間のスロット３７に巻線３８を挿通した後、７番のティース３６に巻線３８を所定回、順方向に巻回し、さらに２５番のセグメント４１に巻線３８を接続する。
続いて、７番のティース３６に巻線３８を所定回、順方向に巻回した後、１番のティース３６と２番のティース３６との間のスロット３７に巻線３８を挿通する。この後、４番のセグメント４１に巻線３８を接続する。Subsequently, after the winding 38 is inserted into the slot 37 between the 4th tooth 36 and the 5th tooth 36, the winding 38 is wound around the 7th tooth 36 in a predetermined direction, and further 25 The winding 38 is connected to the segment 41 of the number.
Subsequently, the winding 38 is wound around the seventh tooth 36 in the forward direction a predetermined number of times, and then the winding 38 is inserted into the slot 37 between the first tooth 36 and the second tooth 36. Thereafter, the winding 38 is connected to the fourth segment 41.

続いて、２番のティース３６に巻線３８を１回巻回する。次に、３番のティース３６に巻線３８を所定回、逆方向に巻回した後、６番のティース３６に巻線３８を所定回、逆方向に巻回する。この後、４番のティース３６と５番のティース３６との間のスロット３７に巻線３８を挿通した後、１５番のセグメント４１に巻線３８を接続する。
続いて、４番のティース３６と５番のティース３６との間のスロット３７に巻線３８を挿通する。次に、３番のティース３６に巻線３８を所定回、逆方向に巻回した後、６番のティース３６に巻線３８を所定回、逆方向に巻回する。この後、７番のティース３６と８番のティース３６との間のスロット３７に巻線３８を挿通し、さらに、２６番のセグメント４１に巻線３８を接続する。Subsequently, the winding 38 is wound around the second tooth 36 once. Next, after winding the winding 38 around the third tooth 36 a predetermined number of times in the reverse direction, the winding 38 is wound around the sixth tooth 36 a predetermined number of times in the reverse direction. Thereafter, the winding 38 is inserted into the slot 37 between the fourth tooth 36 and the fifth tooth 36, and then the winding 38 is connected to the 15th segment 41.
Subsequently, the winding 38 is inserted into the slot 37 between the fourth tooth 36 and the fifth tooth 36. Next, after winding the winding 38 around the third tooth 36 a predetermined number of times in the reverse direction, the winding 38 is wound around the sixth tooth 36 a predetermined number of times in the reverse direction. Thereafter, the winding 38 is inserted into the slot 37 between the 7th tooth 36 and the 8th tooth 36, and the winding 38 is connected to the 26th segment 41.

続いて、７番のティース３６と８番のティース３６との間のスロット３７に巻線３８を挿通する。次に、２番のティース３６に巻線３８を所定回、順方向に巻回した後、５番のセグメント４１に巻線３８を接続する。
続いて、１番のティース３６と２番のティース３６との間のスロット３７に巻線３８を挿通し、さらに、４番のティース３６と５番のティース３６との間のスロット３７に巻線３８を挿通した後、１６番のセグメント４１に巻線３８を接続する。Subsequently, the winding 38 is inserted into the slot 37 between the seventh tooth 36 and the eighth tooth 36. Next, after winding the winding 38 around the second tooth 36 a predetermined number of times in the forward direction, the winding 38 is connected to the fifth segment 41.
Subsequently, a winding 38 is inserted into a slot 37 between the first tooth 36 and the second tooth 36, and further wound into a slot 37 between the fourth tooth 36 and the fifth tooth 36. After inserting 38, the winding 38 is connected to the 16th segment 41.

続いて、５番のティース３６に巻線３８を１回巻回する。次に、６番のティース３６に巻線３８を所定回、逆方向に巻回した後、１番のティース３６に巻線３８を所定回、逆方向に巻回する。この後、７番のティース３６と８番のティース３６との間のスロット３７に巻線３８を挿通し、さらに、２７番のセグメント４１に巻線３８を接続する。
続いて、７番のティース３６と８番のティース３６との間のスロット３７に巻線３８を挿通する。次に、６番のティース３６に巻線３８を所定回、逆方向に巻回した後、１番のティース３６に巻線３８を所定回、逆方向に巻回する。この後、２番のティース３６と３番のティース３６との間のスロット３７に巻線３８を挿通し、さらに、６番のセグメント４１に巻線３８の巻き終わり端３８ｂを接続する。これにより、第１アーマチュアコイル７１の形成が完了する。Subsequently, the winding 38 is wound around the fifth tooth 36 once. Next, the winding 38 is wound around the sixth tooth 36 in a reverse direction a predetermined number of times, and then the winding 38 is wound around the first tooth 36 a predetermined number of times in the reverse direction. Thereafter, the winding 38 is inserted into the slot 37 between the seventh tooth 36 and the eighth tooth 36, and the winding 38 is connected to the 27th segment 41.
Subsequently, the winding 38 is inserted into the slot 37 between the seventh tooth 36 and the eighth tooth 36. Next, the winding 38 is wound around the sixth tooth 36 in a reverse direction a predetermined number of times, and then the winding 38 is wound around the first tooth 36 a predetermined number of times in the reverse direction. Thereafter, the winding 38 is inserted into the slot 37 between the second tooth 36 and the third tooth 36, and the winding end 38 b of the winding 38 is connected to the sixth segment 41. Thereby, the formation of the first armature coil 71 is completed.

上記のように、第１アーマチュアコイル７１、および第２アーマチュアコイル７２は、それぞれ巻線３８により一連に連続して形成される。
ここで、例えば、第１アーマチュアコイル７１を形成するにあたっての各ティース３６への巻線３８の所定の巻回数を、より具体的に示すと以下のようになる。
すなわち、図７に示すように、例えば１番のティース３６では、９．５回、４番のティース３６では１回、５番のティース３６では、４．５回巻回した後に５回巻回する。８番ティース３６では、５回巻回後に４回巻回され、これを周方向に沿って順に繰り返すことにより、図５に示すような第１アーマチュアコイル７１が形成される。As described above, the first armature coil 71 and the second armature coil 72 are each continuously formed in series by the winding 38.
Here, for example, the predetermined number of turns of the winding 38 around each tooth 36 when the first armature coil 71 is formed will be described more specifically as follows.
That is, as shown in FIG. 7, for example, the first tooth 36 is wound 9.5 times, the fourth tooth 36 is once, the fifth tooth 36 is wound 4.5 times, and then wound five times. To do. In the eighth tooth 36, the first armature coil 71 as shown in FIG. 5 is formed by winding four times after the fifth winding and repeating this in order along the circumferential direction.

また、本発明が成立するのに最低限必要な巻回数を示すと以下のようになる。
１番のティース３６に、１．５回、４番のティース３６では１回、５番のティース３６では、１．５回巻回した後に１回巻回し、８番ティース３６に、１回巻回した後に１回巻回する。そして、これを周方向に沿って順に繰り返すことにより、図５に示すような第１アーマチュアコイル７１を形成される。Further, the minimum number of turns necessary for the present invention to be established is as follows.
1st tooth 36, 1.5 times, 4th tooth 36, 1 time, 5th tooth 36, 1.5 times and then 1 time, 8th tooth 36, 1 time Wind once after turning. Then, by repeating this in order along the circumferential direction, a first armature coil 71 as shown in FIG. 5 is formed.

したがって、上述の第２実施形態によれば、前述の第１実施形態と同様の効果を奏する。また、第１アーマチュアコイル７１、および第２アーマチュアコイル７２を形成するにあたって、できる限りアーマチュアコア６を挟んでコンミテータ１３とは反対側に巻線３８を引き回すことができる。このため、アーマチュアコア６とコンミテータ１３との間の巻線３８の巻き太りを抑制できる。よって、電動モータ１の小型化を図りつつ、セグメント４１のライザ４３と巻線３８とが干渉してしまうことを防止でき、巻線３８の損傷を確実に防止できる。 Therefore, according to the second embodiment described above, the same effects as those of the first embodiment described above can be obtained. In forming the first armature coil 71 and the second armature coil 72, the winding 38 can be routed as far as possible to the side opposite to the commutator 13 with the armature core 6 interposed therebetween. For this reason, the winding thickness of the winding 38 between the armature core 6 and the commutator 13 can be suppressed. Therefore, it is possible to prevent the riser 43 of the segment 41 and the winding 38 from interfering with each other while reducing the size of the electric motor 1 and to reliably prevent the winding 38 from being damaged.

なお、上述の第２実施形態では、第１アーマチュアコイル７１、および第２アーマチュアコイル７２は、それぞれ巻線３８により一連に連続して形成する場合について説明した。しかしながら、これに限られるものではなく、第１アーマチュアコイル７１、および第２アーマチュアコイル７２を形成する巻線３８を、セグメント４１に接続するごとに切断してもよい。また、アーマチュアコア６を挟んでコンミテータ１３とは反対側に巻線３８を引き回すために、挿通されるスロット３７は、任意に設定することが可能である。つまり、第１アーマチュアコイル７１は、以下のように形成されていればよい。 In the above-described second embodiment, the case where the first armature coil 71 and the second armature coil 72 are continuously formed in series by the windings 38 has been described. However, the present invention is not limited to this, and the windings 38 forming the first armature coil 71 and the second armature coil 72 may be cut each time they are connected to the segment 41. Further, the slot 37 to be inserted can be arbitrarily set in order to route the winding 38 on the side opposite to the commutator 13 with the armature core 6 interposed therebetween. That is, the 1st armature coil 71 should just be formed as follows.

第１アーマチュアコイル７１は、２２番のセグメント４１と１番のセグメント４１との間に、１番のティース３６に所定回、順方向に巻回され、かつ１番のティース３６の周方向両側に位置するスロット３７を除いた他のスロット３７に１回挿通された巻線３８の端末部が接続されている。
１番のセグメント４１と１２番のセグメント４１との間に、１番のティース３６に所定回、順方向に巻回された巻線３８の端末部が接続されている。
１２番のセグメント４１と２３番のセグメント４１との間に、５番のティース３６に所定回、８番のティース３６に所定回、それぞれ逆方向に巻回されると共に、５番のティース３６および８番のティース３６を除いた他のティース３６に１回、順方向に巻回された巻線３８の端末部が接続されている。The first armature coil 71 is wound around the first tooth 36 by a predetermined number of times in the forward direction between the No. 22 segment 41 and the No. 1 segment 41, and on both sides in the circumferential direction of the No. 1 tooth 36. A terminal portion of the winding 38 that is inserted once into the other slot 37 excluding the slot 37 is connected.
Between the first segment 41 and the twelfth segment 41, a terminal portion of a winding 38 wound around the first tooth 36 in a forward direction is connected a predetermined number of times.
Between the 12th segment 41 and the 23rd segment 41, the 5th tooth 36 is wound a predetermined number of times and the 8th tooth 36 is wound a predetermined number of times in the opposite direction. A terminal portion of a winding 38 wound in the forward direction once is connected to the other teeth 36 excluding the eighth tooth 36.

２３番のセグメント４１と２番のセグメント４１との間に、５番のティース３６に所定回、逆方向に巻回されると共に、８番のティース３６に所定回、逆方向に巻回された巻線３８の端末部が接続されている。
２番のセグメント４１と１３番のセグメント４１との間に、４番のティース３６に所定回、順方向に巻回され、かつ４番のティース３６の周方向両側に位置するスロット３７を除いた他のスロット３７に１回挿通された巻線３８の端末部が接続されている。
１３番のセグメント４１と２４番のセグメント４１との間に、４番のティース３６に所定回、順方向に巻回された巻線３８の端末部が接続されている。Between the No. 23 segment 41 and the No. 2 segment 41, the No. 5 tooth 36 was wound in the reverse direction a predetermined number of times and the No. 8 tooth 36 was wound in the reverse direction a predetermined number of times. A terminal portion of the winding 38 is connected.
Between the second segment 41 and the thirteenth segment 41, the slots 37 wound around the fourth tooth 36 in the forward direction a predetermined number of times and excluding the slots 37 located on both sides in the circumferential direction of the fourth tooth 36 are excluded. The terminal portion of the winding 38 inserted once in the other slot 37 is connected.
Between the thirteenth segment 41 and the twenty-fourth segment 41, a terminal portion of a winding 38 wound in the forward direction around the fourth tooth 36 is connected.

２４番のセグメント４１と３番のセグメント４１との間に、８番のティース３６に所定回、３番のティース３６に所定回、それぞれ逆方向に巻回されると共に、８番のティース３６および３番のティース３６を除いた他のティース３６に１回、順方向に巻回された巻線３８の端末部が接続されている。
３番のセグメント４１と１４番のセグメント４１との間に、８番のティース３６に所定回、３番のティース３６に所定回、それぞれ逆方向に巻回されると共に、８番のティース３６および３番のティース３６の何れか一方のスロット３７を除いた他のスロット３７に１回挿通された巻線３８の端末部が接続されている。Between the No. 24 segment 41 and the No. 3 segment 41, the No. 8 tooth 36 is wound around the No. 8 tooth 36 for a predetermined time, and the No. 3 tooth 36 is wound in the opposite direction, respectively. A terminal portion of a winding 38 wound in the forward direction once is connected to the other teeth 36 excluding the third tooth 36.
Between the No. 3 segment 41 and No. 14 segment 41, the No. 8 tooth 36 is wound in the reverse direction a predetermined time, and the No. 3 tooth 36 is wound in the opposite direction. The terminal portion of the winding 38 inserted once into the other slot 37 except for any one slot 37 of the third tooth 36 is connected.

１４番のセグメント４１と２５番のセグメント４１との間に、７番のティース３６に所定回、順方向に巻回され、かつ７番のティース３６の周方向両側に位置するスロット３７を除いた他のスロット３７に１回挿通された巻線３８の端末部が接続されている。
２５番のセグメント４１と４番のセグメント４１との間に、７番のティース３６に所定回、順方向に巻回された巻線３８の端末部が接続されている。
４番のセグメント４１と１５番のセグメント４１との間に、３番のティース３６に所定回、６番のティース３６に所定回、それぞれ逆方向に巻回されると共に、３番のティース３６および６番のティース３６を除いた他のティース３６に１回、順方向に巻回された巻線３８の端末部が接続されている。Between the 14th segment 41 and the 25th segment 41, the slot 37 wound around the 7th tooth 36 in the forward direction and the slots 37 positioned on both sides in the circumferential direction of the 7th tooth 36 is excluded. The terminal portion of the winding 38 inserted once in the other slot 37 is connected.
Between the 25th segment 41 and the 4th segment 41, a terminal portion of a winding 38 wound in the forward direction around the 7th tooth 36 is connected.
Between the No. 4 segment 41 and the No. 15 segment 41, the No. 3 tooth 36 is wound in a reverse direction a predetermined number of times, and the No. 6 tooth 36 is wound in a reverse direction. A terminal portion of a winding 38 wound in the forward direction once is connected to the other teeth 36 excluding the sixth tooth 36.

１５番のセグメント４１と２６番のセグメント４１との間に、３番のティース３６に所定回、６番のティース３６に所定回、それぞれ逆方向に巻回されると共に、３番のティース３６および６番のティース３６の何れか一方の周方向両側に位置するスロット３７を除いた他のスロット３７に１回挿通された巻線３８の端末部が接続されている。
２６番のセグメント４１と５番のセグメント４１との間に、２番のティース３６に所定回、順方向に巻回された巻線３８の端末部が接続されている。
５番のセグメント４１と１６番のセグメント４１との間に、アーマチュアコア６のコンミテータ１３と反対側に掛け渡された巻線３８の端末部が接続されている。Between the 15th segment 41 and the 26th segment 41, the third tooth 36 is wound a predetermined number of times, and the sixth tooth 36 is wound a predetermined number of times in the opposite direction. The terminal portions of the windings 38 inserted once are connected to the other slots 37 except for the slots 37 located on both circumferential sides of any one of the sixth teeth 36.
Between the 26th segment 41 and the 5th segment 41, a terminal portion of a winding 38 wound in the forward direction around the second tooth 36 is connected.
Between the 5th segment 41 and the 16th segment 41, the terminal portion of the winding 38 is connected across the armature core 6 on the side opposite to the commutator 13.

１６番のセグメント４１と２７番のセグメント４１との間に、６番のティース３６に所定回、逆方向に巻回されると共に、１番のティース３６に所定回、逆方向に巻回され、かつ６番のティース３６および１番のティース３６を除いた他のティース３６に１回、順方向に巻回された巻線３８の端末部が接続されている。
２７番のセグメント４１と６番のセグメント４１との間に、６番のティース３６に所定回、逆方向に巻回されると共に、１番のティース３６に所定回、逆方向に巻回された巻線３８の端末部が接続されている。
なお、第２アーマチュアコイル７１は、上記に示す第１アーマチュアコイル７１に対して回転軸５を中心にして点対称に形成されていればよい。Between the 16th segment 41 and the 27th segment 41, the 6th tooth 36 is wound in the reverse direction a predetermined time, and the 1st tooth 36 is wound in the reverse direction a predetermined time, And the terminal part of the coil | winding 38 wound by the forward direction once was connected to the other teeth 36 except the 6th tooth | gear 36 and the 1st tooth | gear 36.
Between No. 27 segment 41 and No. 6 segment 41, the No. 6 tooth 36 was wound in the reverse direction a predetermined number of times, and the No. 1 tooth 36 was wound in the reverse direction a predetermined number of times. A terminal portion of the winding 38 is connected.
The second armature coil 71 may be formed point-symmetrically with respect to the first armature coil 71 shown above with the rotation axis 5 as the center.

なお、本発明は上述の実施形態に限られるものではなく、本発明の趣旨を逸脱しない範囲において、上述の実施形態に種々の変更を加えたものを含む。
例えば、上述の実施形態では、ダブルフライヤ方式によりアーマチュアコイル７を形成した場合について説明した。しかしながら、これに限られるものではなく、１つのフライヤのみで行ういわゆるシングルフライヤ方式にてアーマチュアコイル７を形成することも可能である。The present invention is not limited to the above-described embodiment, and includes various modifications made to the above-described embodiment without departing from the spirit of the present invention.
For example, in the above-described embodiment, the case where the armature coil 7 is formed by the double flyer method has been described. However, the present invention is not limited to this, and it is also possible to form the armature coil 7 by a so-called single flyer method performed by only one flyer.

また、上述の実施形態では、例えば、自動車のラジエータ冷却用のファンモータとして電動モータ１を用いた場合について説明した。しかしながら、これに限られるものではなく、例えば、自動車のシートを駆動させるための装置、サンルーフを駆動させるための装置等のさまざまな装置の駆動用として、電動モータ１を採用することができる。 In the above-described embodiment, for example, the case where the electric motor 1 is used as a fan motor for cooling an automobile radiator has been described. However, the present invention is not limited to this. For example, the electric motor 1 can be used for driving various devices such as a device for driving a vehicle seat and a device for driving a sunroof.

１…電動モータ
２…ヨーク
３…アーマチュア
４…永久磁石（磁極）
５…回転軸
６…アーマチュアコア
７…アーマチュアコイル
１３…コンミテータ
２２…ブラシ
３６…ティース
３７…スロット
３８…巻線
４１…セグメント
７１…第１アーマチュアコイル
７２…第２アーマチュアコイルDESCRIPTION OF SYMBOLS 1 ... Electric motor 2 ... Yoke 3 ... Armature 4 ... Permanent magnet (magnetic pole)
5 ... Rotating shaft 6 ... Armature core 7 ... Armature coil 13 ... Commutator 22 ... Brush 36 ... Teeth 37 ... Slot 38 ... Winding 41 ... Segment 71 ... First armature coil 72 ... Second armature coil

Claims

A yoke provided with a permanent magnet having 6 magnetic poles;
A rotating shaft rotatably provided inside the yoke in the radial direction;
An armature core having eight teeth attached to the rotating shaft and extending radially along a radial direction, and eight slots formed between the teeth;
A winding wound around each of the teeth;
A commutator provided adjacent to the armature core on the rotating shaft and having 32 segments arranged in the circumferential direction;
A brush for powering the winding through the segment;
An electric motor comprising:
When the eight teeth are sequentially numbered along the circumferential direction, and further, the 32 segments are numbered sequentially along the circumferential direction, and N is a natural number,
Between the segment No. 22 and the segment No. 1, the end of the winding wound in the forward direction is connected to the No. 1 tooth 2N times,
Between the segment No. 1 and the segment No. 12, the terminal portion of the winding wound in the forward direction is connected to the No. 1 tooth 2N times,
Between the 12th segment and the 23rd segment, the No. 5 tooth was wound N times in the reverse direction, and the No. 8 tooth was wound N times in the reverse direction. The end of the winding is connected,
Between No. 23 segment and No. 2 segment, the No. 5 tooth was wound N times in the reverse direction, and the No. 8 tooth was wound N times in the reverse direction. The end of the winding is connected,
Between the second segment and the thirteenth segment, a terminal portion of the winding wound in the forward direction is connected to the fourth tooth, 2N times,
Between the segment No. 13 and the segment No. 24, a terminal portion of the winding wound in the forward direction is connected to the No. 4 tooth 2N times,
Between the 24th segment and the 3rd segment, it was wound around the 8th tooth N times in the reverse direction and at the same time, it was wound around the 3rd tooth N times in the reverse direction. The end of the winding is connected,
Between No. 3 segment and No. 14 segment, the No. 8 tooth was wound N times in the reverse direction, and the No. 3 tooth was wound N times in the reverse direction. The end of the winding is connected,
Between the segment No. 14 and the segment No. 25, the end of the winding wound in the forward direction is connected to the No. 7 tooth 2N times,
Between the 25th segment and the 4th segment, a terminal portion of the winding wound in the forward direction is connected to the 7th tooth 2N times,
Between the No. 4 segment and No. 15 segment, the No. 3 tooth was wound N times in the reverse direction, and the No. 6 tooth was wound N times in the reverse direction. The end of the winding is connected,
Between the 15th segment and the 26th segment, the No. 3 tooth was wound N times in the reverse direction, and the No. 6 tooth was wound N times in the reverse direction. The end of the winding is connected,
Between the segment of No. 26 and the segment of No. 5, the terminal portion of the winding wound in the forward direction is connected to the No. 2 tooth 2N times,
Between the No. 5 segment and the No. 16 segment, a terminal portion of the winding wound in the forward direction is connected to the No. 2 tooth 2N times,
Between the No. 16 segment and the No. 27 segment, the No. 6 tooth was wound N times in the reverse direction, and the No. 1 tooth was wound N times in the reverse direction. The end of the winding is connected,
Between the 27th segment and the 6th segment, the 6th tooth was wound N times in the reverse direction and the 1st tooth was wound N times in the reverse direction. A terminal portion of the winding is connected to form a first armature coil;
An electric motor in which a second armature coil is formed so as to be point-symmetric about the first armature coil and the rotation axis.

A yoke provided with a permanent magnet having 6 magnetic poles;
A rotating shaft rotatably provided inside the yoke in the radial direction;
An armature core having eight teeth attached to the rotating shaft and extending radially along a radial direction, and eight slots formed between the teeth;
A winding wound around each of the teeth;
A commutator provided adjacent to the armature core on the rotating shaft and having 32 segments arranged in the circumferential direction;
A brush for powering the winding through the segment;
An electric motor comprising:
When the eight teeth are sequentially numbered along the circumferential direction, and the 32 segments are numbered sequentially along the circumferential direction,
Between the segment No. 22 and the segment No. 1 except for the slot wound around the No. 1 tooth in the forward direction and positioned on both sides in the circumferential direction of the No. 1 tooth. The end of the winding inserted once into the other slot is connected;
Between the first segment and the twelfth segment, a terminal portion of the winding wound in the forward direction is connected to the first tooth a predetermined number of times,
Between the No. 12 segment and the No. 23 segment, the No. 5 tooth is wound in the reverse direction a predetermined number of times, and the No. 8 tooth is wound in the opposite direction, respectively, and the No. 5 tooth. And the end of the winding wound in the forward direction is connected to the other teeth except for the teeth No. 8 and No. 8,
Between the 23rd segment and the 2nd segment, the 5th tooth was wound in the reverse direction a predetermined number of times, and the 8th tooth was wound in the reverse direction a predetermined time. The end of the winding is connected,
Between the second segment and the thirteenth segment, the slots wound around the fourth tooth in the forward direction a predetermined number of times and excluding the slots located on both sides in the circumferential direction of the fourth tooth The end of the winding inserted once into the other slot is connected;
Between the segment No. 13 and the segment No. 24, a terminal portion of the winding wound in the forward direction is connected to the No. 4 tooth a predetermined number of times,
Between the 24th segment and the 14th segment, the 8th tooth is wound a predetermined number of times and the 3rd tooth is wound a predetermined number of times in the opposite direction, and the 8th tooth And the terminal portion of the winding wound in the forward direction once is connected to the other teeth except for the third tooth.
Between the 3rd segment and the 14th segment, the 8th tooth is wound in the reverse direction a predetermined number of times and the 3rd tooth is wound in the opposite direction. And the terminal portion of the winding inserted once into the other slot excluding the slot of any one of the third teeth,
Between the 14th segment and the 25th segment, except for the slots wound around the 7th tooth in the forward direction and positioned on both sides in the circumferential direction of the 7th tooth. The end of the winding inserted once into the other slot is connected;
Between the 25th segment and the 4th segment, a terminal portion of the winding wound in the forward direction is connected to the 7th tooth a predetermined number of times,
Between the No. 4 segment and No. 15 segment, the No. 3 tooth is wound in a reverse direction a predetermined number of times, and the No. 6 tooth is wound in a reverse direction, and the No. 3 tooth. And the terminal part of the said coil | winding wound by the forward direction once was connected to the said other teeth except the said 6th teeth,
Between the segment No. 15 and the segment No. 26, the third tooth is wound in the reverse direction a predetermined number of times on the third tooth and the predetermined number of times on the sixth tooth. And the ends of the windings inserted once into the other slots except the slots located on both circumferential sides of any one of the teeth of No. 6 and No. 6,
Between the 26th segment and the 5th segment, a terminal portion of the winding wound in the forward direction is connected to the second tooth a predetermined number of times,
Between the segment No. 5 and the segment No. 16 is connected a terminal portion of the winding that is spanned on the opposite side of the commutator of the armature core,
Between the 16th segment and the 27th segment, the 6th tooth is wound a predetermined number of times in the reverse direction, and the 1st tooth is wound a predetermined number of times in the reverse direction, And the terminal portion of the winding wound in the forward direction is connected once to the other teeth excluding the 6th tooth and the 1st tooth,
Between the 27th segment and the 6th segment, the 6th tooth was wound a predetermined number of times in the reverse direction, and the 1st tooth was wound a predetermined number of times in the reverse direction. A terminal portion of the winding is connected to form a first armature coil;
An electric motor in which a second armature coil is formed so as to be point-symmetric about the first armature coil and the rotation axis.

Between the segment No. 22 and the segment No. 1, the slot between the No. 6 teeth and the No. 7 teeth is wound around the No. 1 tooth in the forward direction a predetermined number of times. Is connected to the end of the winding that is inserted once,
Between the No. 12 segment and the No. 23 segment, the No. 5 tooth is wound in the reverse direction a predetermined number of times, and the No. 8 tooth is wound in the opposite direction. To the end of the winding wound in the forward direction once,
Between the second segment and the thirteenth segment, the slot is wound around the fourth tooth for a predetermined number of times in the forward direction and between the first tooth and the second tooth. Is connected to the end of the winding that is inserted once,
Between the 24th segment and the 14th segment, the 8th tooth is wound around the 8th tooth and the 3rd tooth is wound in the opposite direction, respectively, and the 7th tooth To the end of the winding wound in the forward direction once,
Between the 3rd segment and the 14th segment, the 8th tooth is wound in the opposite direction, and the 3rd tooth is wound in the reverse direction, respectively, and the 4th tooth. And the terminal portion of the winding inserted once in the slot between the teeth of No. 5 and the teeth,
Between the 14th segment and the 25th segment, the slot between the 4th tooth and the 5th tooth, and the 7th tooth and the 8th tooth. The end of the winding inserted into the slot is connected,
Between the 4th segment and the 15th segment, the third tooth is wound a predetermined number of times and the sixth tooth is wound a predetermined number of times in the opposite direction, and the second tooth. To the end of the winding wound in the forward direction once,
Between the segment No. 15 and the segment No. 26, the teeth of No. 3 are wound in the reverse direction a predetermined number of times and the teeth of No. 6 a predetermined number of times, and the teeth of No. 7 are wound in the opposite directions. And the end of the winding inserted once in the slot between the teeth of No. 8 and
Between the No. 5 segment and the No. 16 segment, the slot between the No. 1 teeth and No. 2 teeth, and between the No. 4 teeth and No. 5 teeth. The end of the winding inserted into the slot is connected,
Between the 16th segment and the 27th segment, the 6th tooth is wound in the reverse direction for a predetermined time, and the 1st tooth is wound in the forward direction for a predetermined time, The electric motor according to claim 2, wherein a terminal portion of the winding wound in the forward direction once is connected to the fifth tooth.

A yoke provided with a permanent magnet having 6 magnetic poles;
A rotating shaft rotatably provided inside the yoke in the radial direction;
An armature core having eight teeth attached to the rotating shaft and extending radially along a radial direction, and eight slots formed between the teeth;
A winding wound around each of the teeth;
A commutator provided adjacent to the armature core on the rotating shaft and having 32 segments arranged in the circumferential direction;
A brush for powering the winding through the segment;
An electric motor winding method comprising:
When the eight teeth are sequentially numbered along the circumferential direction, and further, the 32 segments are numbered sequentially along the circumferential direction, and N is a natural number,
Connect the winding start end of the winding to the segment No. 22;
Then, after winding the winding to the first tooth 2N times in the forward direction, the winding is connected to the first segment,
Then, after winding the winding around the No. 1 tooth 2N times in the forward direction, connecting the winding to the No. 12 segment,
After that, the winding was wound N times on the teeth No. 5 in the reverse direction, and then the winding was wound N times on the teeth No. 8 in the reverse direction, and further on the segment No. 23 Connect the windings,
Thereafter, the winding is wound N times on the teeth No. 5 in the reverse direction, and then the winding is wound N times on the teeth No. 8 in the reverse direction, and further on the second segment. Connect the windings,
Then, after winding the winding to the 4th tooth 2N times in the forward direction, connecting the winding to the 13th segment,
Then, after winding the winding around the No. 4 tooth 2N times in the forward direction, connecting the winding to the No. 24 segment,
Thereafter, the winding is wound N times on the teeth No. 8 in the reverse direction, and then the winding is wound N times on the teeth No. 3 in the reverse direction, and further on the third segment. Connect the windings,
Thereafter, the winding is wound N times on the teeth No. 8 in the reverse direction, and then the winding is wound N times on the teeth No. 3 in the reverse direction, and further on the 14th segment. Connect the windings,
Then, after winding the winding 2N times on the 7th tooth in the forward direction, connecting the winding to the 25th segment,
Then, after winding the winding around the 7th tooth 2N times in the forward direction, connecting the winding to the 4th segment,
Thereafter, the winding is wound N times on the third tooth in the reverse direction, and then the winding is wound N times on the sixth tooth in the reverse direction, and further on the 15th segment. Connecting the windings,
Thereafter, the winding is wound N times on the third tooth in the reverse direction, and then the winding is wound N times on the sixth tooth in the reverse direction, and further on the 26th segment. Connecting the windings,
After that, the winding is wound in the forward direction 2N times on the second tooth, and then the winding is connected to the fifth segment.
Then, after winding the winding around the No. 2 tooth 2N times in the forward direction, connecting the winding to the No. 16 segment,
Thereafter, the winding is wound N times on the 6th tooth in the reverse direction, and then the winding is wound N times on the 1st tooth in the reverse direction. Connecting the windings,
Thereafter, the winding is wound N times on the teeth No. 6 in the reverse direction, and then the winding is wound N times on the teeth No. 1 in the reverse direction, and further on the No. 6 segment. Connecting the winding end of the winding to form a first armature coil;
The winding method of the electric motor which formed the 2nd armature coil so that it may become point-symmetrical centering on the 1st armature coil and the axis of rotation.

A yoke provided with a permanent magnet having 6 magnetic poles;
A rotating shaft rotatably provided inside the yoke in the radial direction;
An armature core having eight teeth attached to the rotating shaft and extending radially along a radial direction, and eight slots formed between the teeth;
A winding wound around each of the teeth;
A commutator provided adjacent to the armature core on the rotating shaft and having 32 segments arranged in the circumferential direction;
A brush for powering the winding through the segment;
An electric motor winding method comprising:
When the eight teeth are sequentially numbered along the circumferential direction, and the 32 segments are numbered sequentially along the circumferential direction,
Connect the winding start end of the winding to the segment No. 22;
Then, the winding is inserted into the slot between the 6th tooth and the 7th tooth,
Then, after winding the winding around the first tooth a predetermined number of times in the forward direction, the winding is inserted into the slot between the third tooth and the fourth tooth,
Then, connect the winding to the 12th segment,
After that, the winding is wound once around the No. 4 tooth,
Then, after winding the winding around the 5th tooth in the reverse direction a predetermined number of times, winding the winding around the 8th tooth in the reverse direction a predetermined number of times, and Insert the winding into the slot between the 7th teeth,
Then, after connecting the winding to the segment of No. 23, the winding is inserted into the slot between the teeth of No. 6 and the teeth of No. 7,
Then, after winding the winding around the teeth No. 5 predetermined times in the reverse direction, winding the winding around the teeth No. 8 predetermined times in the reverse direction,
Thereafter, the winding is inserted into the slot between the first tooth and the second tooth, and the winding is connected to the second segment,
Thereafter, the winding is inserted into the slot between the first tooth and the second tooth, and the winding is wound around the fourth tooth a predetermined number of times in the forward direction. Connect the winding to the segment of the number;
Then, after winding the winding around the No. 4 tooth in a predetermined direction, the winding is inserted into the slot between the No. 6 tooth and the No. 7 tooth,
After that, connect the winding to the 24th segment,
After that, the winding is wound once around the teeth of No. 7,
Then, after winding the winding around the teeth No. 8 predetermined times in the reverse direction, winding the winding around the teeth No. 3 predetermined times in the reverse direction,
Then, after inserting the winding into the slot between the first tooth and the second tooth, connecting the winding to the third segment,
Thereafter, the winding is inserted into the slot between the first tooth and the second tooth,
Then, after winding the winding around the teeth No. 8 predetermined times in the reverse direction, winding the winding around the teeth No. 3 predetermined times in the reverse direction,
Then, after inserting the winding into the slot between the 4th tooth and the 5th tooth, connecting the winding to the 14th segment,
After that, the winding is inserted into the slot between the 4th tooth and the 5th tooth, and the winding is wound around the 7th tooth in the forward direction by a predetermined number of times. Connect the winding to the segment of the number;
Then, after winding the winding around the No. 7 tooth a predetermined number of times in the forward direction, the winding is inserted into the slot between the No. 1 tooth and the No. 2 tooth,
Then connect the winding to the 4th segment,
After that, the winding is wound once around the second tooth,
Then, after winding the winding around the teeth No. 3 predetermined times in the reverse direction, winding the winding around the teeth No. 6 predetermined times in the reverse direction,
Then, after inserting the winding into the slot between the 4th tooth and the 5th tooth, connecting the winding to the 15th segment,
Then, the winding is inserted into the slot between the 4th tooth and the 5th tooth,
Then, after winding the winding around the teeth No. 3 predetermined times in the reverse direction, winding the winding around the teeth No. 6 predetermined times in the reverse direction,
Then, after inserting the winding into the slot between the 4th tooth and the 5th tooth, connecting the winding to the 26th segment,
Then, the winding is inserted into the slot between the teeth No. 7 and the teeth No. 8;
Then, after winding the winding around the second tooth, a predetermined number of times, connecting the winding to the fifth segment,
Thereafter, the winding is inserted into the slot between the first tooth and the second tooth and the slot between the fourth tooth and the fifth tooth, respectively. Connect the winding to the segment of the number;
After that, wind the winding once around the No. 5 tooth,
Then, after winding the winding around the tooth No. 6 predetermined times in the reverse direction, winding the winding around the No. 1 tooth predetermined times in the reverse direction,
Then, after inserting the winding into the slot between the teeth No. 7 and the teeth No. 8, connect the winding to the segment No. 27,
Then, the winding is inserted into the slot between the teeth No. 7 and the teeth No. 8;
Then, after winding the winding around the tooth No. 6 predetermined times in the reverse direction, winding the winding around the No. 1 tooth predetermined times in the reverse direction,
Thereafter, the winding is inserted into the slot between the second tooth and the third tooth, and then the winding end of the winding is connected to the sixth segment to form a first armature coil Form the
The winding method of the electric motor which formed the 2nd armature coil so that it may become point-symmetrical centering on the 1st armature coil and the axis of rotation.