JP2006325295A - Stator - Google Patents

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JP2006325295A
JP2006325295A JP2005144053A JP2005144053A JP2006325295A JP 2006325295 A JP2006325295 A JP 2006325295A JP 2005144053 A JP2005144053 A JP 2005144053A JP 2005144053 A JP2005144053 A JP 2005144053A JP 2006325295 A JP2006325295 A JP 2006325295A
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stator
yoke
teeth
coil
joint
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JP4568639B2 (en
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Takuro Kugimiya
卓郎 釘宮
Masayoshi Kimura
正良 木村
Tsukasa Aiba
司 合葉
Akihisa Nojima
章央 能島
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a stator which can generate running torque efficiently by reducing magnetic reluctance and an iron loss. <P>SOLUTION: A linear joint 46 becoming narrower gradually from an intermediate portion 44 for in which a coil 38 is wound to teeth 34 toward the radial outside of a stator 30 is arranged, and an engaging portion 48 projecting to the opposite sides of the stator 30 in the circumferential direction is arranged at the tip of the joint 46. Both ends of a yoke 36 are bonded to the joint 46 before being engaged with the engaging portion 48, thus manufacturing the stator 30. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、コイルが巻回される複数のティースと、周方向に分割され、前記各ティースに連結して環状に配設されるヨークとから構成されるステータに関する。   The present invention relates to a stator including a plurality of teeth around which a coil is wound, and a yoke that is divided in a circumferential direction and connected to each of the teeth to be annularly disposed.

近年、電動機の分野において、高効率なＤＣブラシレスモータが広汎に使用されている。図５は、従来の３相４極６スロットのＤＣブラシレスモータ２の概略構成を示す。   In recent years, highly efficient DC brushless motors have been widely used in the field of electric motors. FIG. 5 shows a schematic configuration of a conventional three-phase four-pole six-slot DC brushless motor 2.

ＤＣブラシレスモータ２は、中心部に回転軸４を有し、外周部に４個の永久磁石６が固定されたロータ８と、ロータ８の外周部に配設され、コイル１０が巻回された複数のティース１２をヨーク１４によって周方向に一体的に連結したステータ１６とを備える。なお、ステータ１６は、回転軸４の方向に複数の電磁鋼板を積層して構成される。   The DC brushless motor 2 has a rotating shaft 4 at the center, a rotor 8 having four permanent magnets 6 fixed to the outer periphery, and an outer periphery of the rotor 8, and a coil 10 is wound around the rotor 8. And a stator 16 in which a plurality of teeth 12 are integrally connected in a circumferential direction by a yoke 14. The stator 16 is configured by laminating a plurality of electromagnetic steel plates in the direction of the rotating shaft 4.

このように構成されるＤＣブラシレスモータ２は、コイル１０に三相交流電流を流してステータ１６に交番磁界を発生させ、この交番磁界と永久磁石６の磁界とによって発生する反発力を利用してロータ８を回転させる。   The DC brushless motor 2 configured as described above causes a three-phase alternating current to flow through the coil 10 to generate an alternating magnetic field in the stator 16, and uses a repulsive force generated by the alternating magnetic field and the magnetic field of the permanent magnet 6. The rotor 8 is rotated.

ところで、前記のステータ１６は、ティース１２及びヨーク１４が一体となった複雑な構造であるため、１枚の電磁鋼板から形成されるステータ１６の歩留まりが悪く、高価となる不具合がある。   By the way, since the stator 16 has a complicated structure in which the teeth 12 and the yoke 14 are integrated, there is a problem that the yield of the stator 16 formed from one electromagnetic steel sheet is poor and expensive.

そこで、図６に示すように、ティース１８とヨーク２０とを分割するとともに、ヨーク２０を周方向に分割し、これらを連結してステータ２２とした従来技術が開発されている（特許文献１、２参照）。この場合、ティース１８及びヨーク２０の形状が単純化されるため、１枚の電磁鋼板からティース１８及びヨーク２０を高い歩留まりで形成することができる。   Therefore, as shown in FIG. 6, a conventional technique has been developed in which the teeth 18 and the yoke 20 are divided and the yoke 20 is divided in the circumferential direction to connect them to form a stator 22 (Patent Document 1, 2). In this case, since the shapes of the teeth 18 and the yoke 20 are simplified, the teeth 18 and the yoke 20 can be formed from a single electromagnetic steel sheet with a high yield.

また、特許文献２に開示された従来技術では、ティース１８及びヨーク２０の連結部分における磁気抵抗及び鉄損の増大を回避するため、ヨーク２０を各ティース１８の位置で分割するとともに、ティース１８及びヨーク２０間の接合線２４の方向が磁束の方向と略直行するように設定している。   In the prior art disclosed in Patent Document 2, the yoke 20 is divided at the positions of the teeth 18 in order to avoid an increase in magnetic resistance and iron loss at the connecting portion of the teeth 18 and the yoke 20, and the teeth 18 and The direction of the joint line 24 between the yokes 20 is set so as to be substantially perpendicular to the direction of the magnetic flux.

さらに、特許文献１、２では、矢印で示す時間の方向に合わせてティース１８及びヨーク２０を構成する電磁鋼板の磁化容易方向を設定している。   Further, in Patent Documents 1 and 2, the easy magnetization direction of the electrical steel sheets constituting the teeth 18 and the yoke 20 is set in accordance with the time direction indicated by the arrows.

特開２００４−５６９０６号公報JP 2004-56906 A 特開２００４−２３６４９５号公報JP 2004-236495 A

ところで、ティース１８及びヨーク２０を分割してステータ２２とする場合、接合線２４における磁束の漏洩を可能な限り少なくするため、ティース１８及びヨーク２０を隙間なく強固に連結する必要がある。この場合、特許文献１では、ティース１８に突起２６を設け、この突起２６をヨーク２０に係合させることにより、相互の連結強度を確保している。   By the way, when the teeth 18 and the yoke 20 are divided into the stator 22, it is necessary to firmly connect the teeth 18 and the yoke 20 without gaps in order to reduce the leakage of magnetic flux in the joining line 24 as much as possible. In this case, in Patent Document 1, a protrusion 26 is provided on the tooth 18, and the protrusion 26 is engaged with the yoke 20 to ensure mutual connection strength.

しかしながら、突起２６をティース１８及びヨーク２０の接合線２４の部分に設けているため、突起２６の周辺で磁束の方向が乱れ、磁気抵抗及び鉄損が増大してしまう不具合が発生する。   However, since the protrusion 26 is provided in the portion of the joint line 24 of the tooth 18 and the yoke 20, the direction of the magnetic flux is disturbed around the protrusion 26, causing a problem that the magnetic resistance and the iron loss increase.

本発明は、前記の不具合に鑑みてなされたもので、磁気抵抗及び鉄損を低減し、効率的に回転トルクを発生させることのできるステータを提供することを目的とする。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a stator that can reduce magnetic resistance and iron loss and can efficiently generate rotational torque.

本発明のステータは、コイルが巻回される複数のティースと、周方向に分割され、前記各ティースに連結して環状に配設されるヨークとから構成されるステータにおいて、
前記ティースは、前記コイルが巻回される部位から当該ステータの径方向に向かって徐々に幅狭となる直線状の接合部と、前記接合部の端部から当該ステータの周方向両側に突出する係合部とを備え、前記接合部に前記ヨークの端部が接合するとともに、前記係合部に前記ヨークの端部が係合することを特徴とする。 The stator of the present invention is a stator constituted by a plurality of teeth around which a coil is wound, and a yoke that is divided in the circumferential direction and connected to each of the teeth and arranged annularly.
The teeth project linearly from the portion around which the coil is wound toward the stator in the radial direction, and project from the end of the joint to both sides in the circumferential direction of the stator. An engaging portion, and an end portion of the yoke is joined to the joining portion, and an end portion of the yoke is engaged with the engaging portion.

この場合、コイルに通電することで発生した磁束は、ティースとヨークとの接合部を介して円滑に流れる。また、ティースとヨークとは、磁束に殆ど影響を与えることのないステータの径方向端部側に形成された係合部により強固に連結される。   In this case, the magnetic flux generated by energizing the coil flows smoothly through the joint between the tooth and the yoke. Further, the teeth and the yoke are firmly connected by an engaging portion formed on the radial end portion side of the stator that hardly affects the magnetic flux.

本発明のステータでは、コイルによって発生した磁束がティースとヨークとの接合部を介して円滑に流れるとともに、ティース及びヨークを強固に連結する係合部が磁束に影響を与えることのない部位に形成されているため、磁気抵抗及び鉄損を低減して効率的に回転トルクを発生させることができる。   In the stator of the present invention, the magnetic flux generated by the coil flows smoothly through the joint between the tooth and the yoke, and the engaging portion that firmly connects the tooth and the yoke is formed in a portion that does not affect the magnetic flux. Therefore, the rotational resistance can be generated efficiently by reducing the magnetic resistance and the iron loss.

図１は、本実施形態に係るインナーロータ型のステータ３０の構成図である。   FIG. 1 is a configuration diagram of an inner rotor type stator 30 according to the present embodiment.

ステータ３０は、図２に示すように、スロット３２を介して円周状に配設される複数のティース３４と、ティース３４を連結して環状に配設される複数のヨーク３６とから構成される。連結されたティース３４及びヨーク３６は、電動機の軸線方向に積層されてステータ３０となる。また、積層されたティース３４には、図３に示すように、絶縁部材からなるボビン４０に巻回されたコイル３８が装着される。   As shown in FIG. 2, the stator 30 includes a plurality of teeth 34 that are circumferentially arranged via slots 32 and a plurality of yokes 36 that are annularly arranged by connecting the teeth 34. The The connected teeth 34 and yoke 36 are stacked in the axial direction of the electric motor to form the stator 30. Further, as shown in FIG. 3, a coil 38 wound around a bobbin 40 made of an insulating member is attached to the stacked teeth 34.

ティース３４には、一端部に鍔状部４２が形成され、コイル３８が巻回される中間部４４が略平行に延在した後、ステータ３０の径方向外方に向かって徐々に幅狭となる直線状の接合部４６が形成され、他端部にステータ３０の周方向両側に突出する係合部４８が形成される。なお、鍔状部４２は、隣接して配設されるティース３４間に所定の磁気ギャップ５０を形成する。   The teeth 34 are formed with a hook-like portion 42 at one end, and after the intermediate portion 44 around which the coil 38 is wound extends substantially in parallel, the width gradually decreases outward in the radial direction of the stator 30. The linear joint portion 46 is formed, and the engaging portion 48 that protrudes on both sides in the circumferential direction of the stator 30 is formed at the other end portion. Note that the hook-shaped portion 42 forms a predetermined magnetic gap 50 between adjacent teeth 34.

一方、ヨーク３６には、ティース３４の接合部４６に接合する接合部５２と、ティース３４の係合部４８に係合する係合部５４とが両端部に形成される。   On the other hand, the yoke 36 is formed with a joint portion 52 that joins the joint portion 46 of the tooth 34 and an engagement portion 54 that engages the engagement portion 48 of the tooth 34 at both ends.

ティース３４及びヨーク３６が接合される接合部４６、５２の長さは、図２の円で示すように、ティース３４の中間部４４の幅とヨーク３６の幅とのいずれか狭い方の幅に合わせて設定される。なお、図２に示すステータ３０では、ヨーク３６の幅に合わせて接合部４６、５２の長さが設定されている。また、接合部４６、５２の延在方向は、ティース３４の延在方向と、ヨーク３６の延在方向とを略二等分した方向に設定される。   The lengths of the joint portions 46 and 52 to which the teeth 34 and the yoke 36 are joined are set to the narrower one of the width of the intermediate portion 44 of the teeth 34 and the width of the yoke 36 as shown by a circle in FIG. It is set together. In the stator 30 shown in FIG. 2, the lengths of the joint portions 46 and 52 are set in accordance with the width of the yoke 36. In addition, the extending direction of the joint portions 46 and 52 is set to a direction obtained by dividing the extending direction of the teeth 34 and the extending direction of the yoke 36 into approximately two equal parts.

本実施形態のステータ３０は、基本的にには以上のように構成されるものであり、次に、ステータ３０の組立手順及びその作用効果について説明する。   The stator 30 of the present embodiment is basically configured as described above. Next, the assembly procedure of the stator 30 and the operation and effect thereof will be described.

先ず、図４に示すように、電磁鋼板５６を矢印方向に圧延した後、圧延方向に対して長手方向を一致させた状態でティース３４及びヨーク３６を打ち抜く。なお、電磁鋼板５６に形成された孔部５８は、ティース３４及びヨーク３６を打ち抜く際の位置決めに利用される。   First, as shown in FIG. 4, after rolling the magnetic steel sheet 56 in the direction of the arrow, the teeth 34 and the yoke 36 are punched in a state where the longitudinal direction coincides with the rolling direction. The hole 58 formed in the electromagnetic steel plate 56 is used for positioning when the teeth 34 and the yoke 36 are punched out.

この場合、電磁鋼板５６の比透磁率は、圧延方向に大きくなる傾向があるため、ティース３４及びヨーク３６の磁気抵抗及び鉄損は、長手方向が小さくなる。また、ティース３４及びヨーク３６は、いずれも長尺な形状からなるため、これらを長手方向に沿って電磁鋼板５６に配置して打ち抜くことにより、電磁鋼板５６を有効に活用し、高い歩留まりでティース３４及びヨーク３６を量産することができる。   In this case, since the relative permeability of the electromagnetic steel sheet 56 tends to increase in the rolling direction, the longitudinal direction of the magnetic resistance and iron loss of the teeth 34 and the yoke 36 decreases. Further, since the teeth 34 and the yoke 36 are both long, the electromagnetic steel sheets 56 are effectively used by arranging them on the electromagnetic steel sheets 56 along the longitudinal direction, and the teeth 34 can be obtained with a high yield. 34 and the yoke 36 can be mass-produced.

電磁鋼板５６から打ち抜かれたティース３４及びヨーク３６は、所定枚数が積層される。そして、ボビン４０の外周部にコイル３８を巻回した後、図３に示すように、ボビン４０を積層状態のティース３４の係合部４８側から中間部４４に装着する。すなわち、ティース３４は、端部の係合部４８側が中間部４４よりも幅狭となっているため、ボビン４０の外周部にコイル３８を巻回した後、ティース３４に装着することができる。従って、コイル３８の巻回作業を極めて容易に行うことができる。   A predetermined number of teeth 34 and yokes 36 punched from the electromagnetic steel sheet 56 are laminated. And after winding the coil 38 around the outer peripheral part of the bobbin 40, as shown in FIG. 3, the bobbin 40 is mounted | worn with the intermediate part 44 from the engaging part 48 side of the teeth 34 of the lamination | stacking state. That is, since the teeth 34 are narrower at the end of the engaging portion 48 side than the intermediate portion 44, the teeth 34 can be attached to the teeth 34 after the coil 38 is wound around the outer peripheral portion of the bobbin 40. Therefore, the winding operation of the coil 38 can be performed very easily.

中間部４４にコイル３８が装着されたティース３４は、積層状態のヨーク３６と連結され、ステータ３０が組み立てられる。すなわち、ティース３４の接合部４６に対してヨーク３６の接合部５２が接合され、また、ティース３４の係合部４８に対してヨーク３６の係合部５４が係合される。そして、係合部４８、５４間の部位がステータ３０の外周側から溶接接合されることで、ステータ３０の製造が完了する。   The teeth 34 having the coil 38 attached to the intermediate portion 44 are connected to the laminated yoke 36, and the stator 30 is assembled. That is, the joint portion 52 of the yoke 36 is joined to the joint portion 46 of the tooth 34, and the engagement portion 54 of the yoke 36 is engaged with the engagement portion 48 of the tooth 34. And the site | part between the engaging parts 48 and 54 is weld-joined from the outer peripheral side of the stator 30, and manufacture of the stator 30 is completed.

以上のようにして製造されたステータ３０は、永久磁石６０を介して中央部に図示しないロータが組み付けられることにより、電動機が完成する。   The stator 30 manufactured as described above is assembled with a rotor (not shown) at the center via the permanent magnet 60, thereby completing the electric motor.

このようにして製造された電動機において、コイル３８に三相交流電流を通電すると、図２の矢印に示すように、ティース３４、ヨーク３６及び永久磁石６０間で磁束が流れ、コイル３８による磁界と永久磁石６０の磁界とによって発生する反発力によってロータが回転する。   In the electric motor manufactured in this manner, when a three-phase alternating current is passed through the coil 38, magnetic flux flows between the teeth 34, the yoke 36 and the permanent magnet 60 as shown by the arrows in FIG. The rotor is rotated by a repulsive force generated by the magnetic field of the permanent magnet 60.

この場合、発生した磁束は、ティース３４及びヨーク３６間の直線状の接合部４６、５２と直交する方向に流れ、図２に示す円の外側であるティース３４及びヨーク３６がかしめ固定されている係合部４８の部分を流れることが殆どない。また、ティース３４及びヨーク３６は、二重矢印で示すように、磁束の流れ方向に沿って磁化容易方向が設定されている。従って、磁束は、磁気抵抗及び鉄損が極めて小さい状態で効率的に流れることになる。   In this case, the generated magnetic flux flows in a direction orthogonal to the linear joints 46 and 52 between the teeth 34 and the yoke 36, and the teeth 34 and the yoke 36 which are outside the circle shown in FIG. There is almost no flow through the engaging portion 48. The teeth 34 and the yoke 36 have an easy magnetization direction along the flow direction of the magnetic flux, as indicated by a double arrow. Therefore, the magnetic flux efficiently flows in a state where the magnetic resistance and the iron loss are extremely small.

さらに、本実施形態では、組み立てられたステータ３０を構成するティース３４及びヨーク３６の係合部４８、５４を溶接によって強固に接合している。この場合、溶接接合されている係合部４８、５４が図２に示す円の外側であるため、ティース３４、ヨーク３６間の磁束の流れが係合部４８、５４及びその溶接部位によって乱されることがない。従って、磁気抵抗及び鉄損が十分に低減された状態で磁束を流し、ロータを十分な回転トルクで回転させることができる。   Further, in this embodiment, the teeth 34 and the engaging portions 48 and 54 of the yoke 36 constituting the assembled stator 30 are firmly joined by welding. In this case, since the engaging portions 48 and 54 which are welded and joined are outside the circle shown in FIG. 2, the flow of magnetic flux between the teeth 34 and the yoke 36 is disturbed by the engaging portions 48 and 54 and their welded portions. There is nothing to do. Therefore, the magnetic flux can be passed in a state where the magnetic resistance and the iron loss are sufficiently reduced, and the rotor can be rotated with sufficient rotational torque.

さらにまた、ティース３４に巻回されるコイル３８は、ティース３４をヨーク３６に組み付ける前の状態で中間部４４に巻回させることができる。この場合、ティース３４間のスロット３２の空間を有効に活用し、十分な巻線占積率を実現することができる。一方、コイル３８の巻回数に合わせてスロット３２を設定すれば、ステータ３０の小型化を達成することができる。   Furthermore, the coil 38 wound around the teeth 34 can be wound around the intermediate portion 44 in a state before the teeth 34 are assembled to the yoke 36. In this case, the space of the slot 32 between the teeth 34 can be effectively used to realize a sufficient winding space factor. On the other hand, if the slot 32 is set in accordance with the number of turns of the coil 38, the stator 30 can be reduced in size.

なお、上述した実施形態では、インナーロータ型のステータ３０について説明したが、ステータの外周部にロータが配設されるアウターロータ型のステータにも適用できることは勿論である。   In the above-described embodiment, the inner rotor type stator 30 has been described, but it is needless to say that the present invention can also be applied to an outer rotor type stator in which a rotor is disposed on the outer periphery of the stator.

本実施形態のステータの構成図である。It is a block diagram of the stator of this embodiment. 本実施形態のステータの一部平面図である。It is a partial top view of the stator of this embodiment. 本実施形態のステータを構成するティースにコイルを装着する処理の説明図である。It is explanatory drawing of the process which mounts a coil on the teeth which comprise the stator of this embodiment. 本実施形態のステータを構成するティース及びヨークの切り出し方法の説明図である。It is explanatory drawing of the cutting method of the teeth and yoke which comprise the stator of this embodiment. 従来技術に係るＤＣブラシレスモータの構成図である。It is a block diagram of the DC brushless motor which concerns on a prior art. 従来技術に係るステータの構成図である。It is a block diagram of the stator which concerns on a prior art.

符号の説明Explanation of symbols

３０…ステータ ３２…スロット
３４…ティース ３６…ヨーク
３８…コイル ４０…ボビン
４２…鍔状部 ４４…中間部
４６、５２…接合部 ４８、５４…係合部
５０…磁気ギャップ ５６…電磁鋼板 DESCRIPTION OF SYMBOLS 30 ... Stator 32 ... Slot 34 ... Teeth 36 ... Yoke 38 ... Coil 40 ... Bobbin 42 ... Gutter-like part 44 ... Intermediate | middle part 46, 52 ... Joint part 48, 54 ... Engagement part 50 ... Magnetic gap 56 ... Electrical steel plate

Claims (5)

コイルが巻回される複数のティースと、周方向に分割され、前記各ティースに連結して環状に配設されるヨークとから構成されるステータにおいて、
前記ティースは、前記コイルが巻回される部位から当該ステータの径方向に向かって徐々に幅狭となる直線状の接合部と、前記接合部の端部から当該ステータの周方向両側に突出する係合部とを備え、前記接合部に前記ヨークの端部が接合するとともに、前記係合部に前記ヨークの端部が係合することを特徴とするステータ。 In a stator constituted by a plurality of teeth around which a coil is wound, and a yoke that is divided in a circumferential direction and connected to each of the teeth and arranged in an annular shape,
The teeth project linearly from the portion around which the coil is wound toward the stator in the radial direction, and project from the end of the joint to both sides in the circumferential direction of the stator. The stator includes an engaging portion, and an end portion of the yoke is joined to the joining portion, and an end portion of the yoke is engaged to the engaging portion. 請求項１記載のステータにおいて、
前記接合部は、前記コイルが巻回される部位における前記ティースの幅と、前記ヨークの幅とのどちらか狭い幅に対応する範囲で設定されることを特徴とするステータ。 The stator according to claim 1, wherein
The stator is characterized in that the joint is set in a range corresponding to a narrower one of the width of the teeth and the width of the yoke at a portion where the coil is wound. 請求項１記載のステータにおいて、
前記ティース及び前記ヨークは、前記係合部において溶接接合されることを特徴とするステータ。 The stator according to claim 1, wherein
The stator and the yoke are welded and joined at the engaging portion. 請求項１記載のステータにおいて、
前記接合部は、前記コイルが巻回される前記ティースの部位の延在方向と、前記ヨークの延在方向とを略二等分する方向に設定されることを特徴とするステータ。 The stator according to claim 1, wherein
The stator is characterized in that the joint is set in a direction that substantially bisects the extending direction of the tooth portion around which the coil is wound and the extending direction of the yoke. 請求項１記載のステータにおいて、
前記ティース及び前記ヨークは、それぞれの延在方向に電磁鋼板の磁化容易方向が設定されることを特徴とするステータ。 The stator according to claim 1, wherein
The stator and the yoke are characterized in that an easy direction of magnetization of the electromagnetic steel sheet is set in each extending direction.
JP2005144053A 2005-05-17 2005-05-17 Stator Expired - Fee Related JP4568639B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009178037A (en) * 2008-01-11 2009-08-06 Johnson Electric Sa Stator for electric motor
JP2011015592A (en) * 2009-07-06 2011-01-20 Toyota Motor Corp Split stator and manufacturing method thereof
JP2012050200A (en) * 2010-08-25 2012-03-08 Toyota Motor Corp Split stator core, method of manufacturing the same, and motor including split stator core
WO2019064630A1 (en) * 2017-09-29 2019-04-04 株式会社日立製作所 Radial-gap-type rotary electric machine, and production device and production method for same
WO2020054469A1 (en) * 2018-09-12 2020-03-19 パナソニックＩｐマネジメント株式会社 Stator, and motor using same
CN111837314A (en) * 2018-03-16 2020-10-27 株式会社日立制作所 Radial gap type rotating electric machine

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JP2000156943A (en) * 1998-11-18 2000-06-06 Hitachi Ltd Stator of rotary electric machine
JP2001136687A (en) * 1999-11-09 2001-05-18 Hitachi Ltd Permanent magnet rotary electric machine
JP2004236495A (en) * 2003-01-10 2004-08-19 Nippon Steel Corp Exciter and synchronizer using it

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000156943A (en) * 1998-11-18 2000-06-06 Hitachi Ltd Stator of rotary electric machine
JP2001136687A (en) * 1999-11-09 2001-05-18 Hitachi Ltd Permanent magnet rotary electric machine
JP2004236495A (en) * 2003-01-10 2004-08-19 Nippon Steel Corp Exciter and synchronizer using it

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009178037A (en) * 2008-01-11 2009-08-06 Johnson Electric Sa Stator for electric motor
JP2011015592A (en) * 2009-07-06 2011-01-20 Toyota Motor Corp Split stator and manufacturing method thereof
JP2012050200A (en) * 2010-08-25 2012-03-08 Toyota Motor Corp Split stator core, method of manufacturing the same, and motor including split stator core
WO2019064630A1 (en) * 2017-09-29 2019-04-04 株式会社日立製作所 Radial-gap-type rotary electric machine, and production device and production method for same
JP2019068567A (en) * 2017-09-29 2019-04-25 株式会社日立製作所 Radial gap type rotary electric machine, manufacturing device, and manufacturing method for the same
CN111052545A (en) * 2017-09-29 2020-04-21 株式会社日立制作所 Radial gap type rotating electrical machine, manufacturing device therefor, and manufacturing method therefor
CN111837314A (en) * 2018-03-16 2020-10-27 株式会社日立制作所 Radial gap type rotating electric machine
CN111837314B (en) * 2018-03-16 2023-08-11 株式会社日立制作所 Radial gap type rotating electrical machine
WO2020054469A1 (en) * 2018-09-12 2020-03-19 パナソニックＩｐマネジメント株式会社 Stator, and motor using same

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