JP2003032924A - Dynamo-electric machine - Google Patents
Dynamo-electric machineInfo
- Publication number
- JP2003032924A JP2003032924A JP2001217485A JP2001217485A JP2003032924A JP 2003032924 A JP2003032924 A JP 2003032924A JP 2001217485 A JP2001217485 A JP 2001217485A JP 2001217485 A JP2001217485 A JP 2001217485A JP 2003032924 A JP2003032924 A JP 2003032924A
- Authority
- JP
- Japan
- Prior art keywords
- electric machine
- stator
- yoke portion
- rotor
- yoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は回転電機に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary electric machine.
【０００２】[0002]
【従来の技術】回転電機のステータを通過する最大磁束
鎖交数を増やすことで出力効率が高められる。最大磁束
鎖交数はステータのヨーク部の軸方向断面積、すなわち
ヨーク部の体積を大きくすることで増加させられること
が知られている。しかし、小型化が要求される回転電機
にあっては、ヨーク部の径方向長さを大きくしてその体
積を大きくするのには限度がある。2. Description of the Related Art Output efficiency can be increased by increasing the maximum number of flux linkages passing through a stator of a rotary electric machine. It is known that the maximum flux linkage number can be increased by increasing the axial cross-sectional area of the yoke portion of the stator, that is, the volume of the yoke portion. However, in a rotary electric machine that is required to be downsized, there is a limit to increasing the radial length of the yoke portion and increasing its volume.
【０００３】IEEE-Trans.on IA,VOL.36,NO.4,p1077-108
4により、図９、図１０にも示すように、ステータ２１
をパウダー状の金属で一体的成型し、ヨーク部２２がテ
ィース部２３よりも回転軸方向に長くなるようにし、テ
ィース部２３の周囲に巻回すコイル２４の両端をヨーク
部２２の軸方向の両端とほぼ一致させることが提案され
ている。IEEE-Trans.on IA, VOL.36, NO.4, p1077-108
As shown in FIG. 9 and FIG.
Is integrally molded with powdery metal so that the yoke portion 22 is longer in the rotation axis direction than the teeth portion 23, and both ends of the coil 24 wound around the teeth portion 23 are attached to both ends of the yoke portion 22 in the axial direction. It is proposed to match with.
【０００４】このようにして、もともとティース部２３
へのコイル２７の巻き付けにより生じる、ヨーク部２２
の軸方向両端部の空きスペースを利用することで、径方
向にはコンパクトでありながら、実質的な軸方向の全長
を延ばすことなく、ヨーク部体積を増大することが提案
されている。なお、図中、２４はロータ、２５はロータ
２４に埋め込んだ永久磁石である。In this way, the tooth portion 23 is originally
The yoke portion 22 generated by winding the coil 27 around the
It has been proposed to increase the volume of the yoke portion by utilizing the vacant spaces at both ends in the axial direction, while being compact in the radial direction, without extending the substantial overall length in the axial direction. In the figure, 24 is a rotor, and 25 is a permanent magnet embedded in the rotor 24.
【０００５】[0005]
【発明が解決しようとする課題】ところで、回転電機で
は電磁鋼板をステータ軸方向に積層してステータを構成
するのが普通で、これにより透磁率及び飽和磁束密度を
低下させることなく渦電流を主体とする鉄損を低減さ
せ、回転電機の出力効率を向上させている。By the way, in a rotary electric machine, it is usual that electromagnetic steel sheets are laminated in the axial direction of the stator to form a stator, which mainly causes eddy currents without lowering the magnetic permeability and the saturation magnetic flux density. The iron loss is reduced and the output efficiency of the rotating electric machine is improved.
【０００６】しかしながら、図９に示す回転電機におい
て、ステータをパウダー状金属ではなく、電磁鋼板を積
層して実現しようとすると、例えば、図１１に示すよう
に、ステータ２１を構成する電磁鋼板２６としては、単
純な薄板鋼板とはならず、その形状が複雑となり、しか
も同一のものでもないため、断面形状の異なる多種類の
電磁鋼板が必要となるなど、部品点数の増加によるコス
トアップが免れられないと言う問題がある。However, in the rotary electric machine shown in FIG. 9, if the stator is made by laminating electromagnetic steel plates instead of powdery metal, for example, as shown in FIG. Is not a simple thin steel plate, its shape is complicated, and it is not the same, so many types of electromagnetic steel plates with different cross-sectional shapes are required, and the cost increase due to the increase in the number of parts is avoided. There is a problem that says no.
【０００７】本発明はこのような問題に着目し、形状の
複雑化を回避しつつ出力効率のよい回転電機を提供する
ことを目的とする。The present invention focuses on such a problem, and an object thereof is to provide a rotary electric machine having high output efficiency while avoiding complication of the shape.
【０００８】[0008]
【課題を解決するための手段】第１の発明は、コイルが
巻装されるステータと、ステータと同軸的に回転自由に
配置されるロータと備えた回転電機において、前記ステ
ータを、ヨーク部及びコイルが巻装されるティース部と
を別体にして構成し、ヨーク部の軸方向長さをティース
部の軸方向長さよりも大きくする。According to a first aspect of the present invention, there is provided a rotating electric machine comprising a stator around which a coil is wound, and a rotor rotatably arranged coaxially with the stator. The tooth portion around which the coil is wound is configured separately, and the axial length of the yoke portion is made larger than the axial length of the tooth portion.
【０００９】第２の発明は、第１の発明において、前記
ヨーク部の軸方向の長さは、前記コイルを含むティース
部の軸方向の長さとほぼ一致させる。In a second aspect based on the first aspect, the axial length of the yoke portion is substantially equal to the axial length of the tooth portion including the coil.
【００１０】第３の発明は、第１または第２の発明にお
いて、前記ヨーク部を構成する軸方向に積層した電磁鋼
板の層数を、前記ティース部を構成する軸方向に積層し
た電磁鋼板の層数よりも多くする。According to a third aspect of the invention, in the first or second aspect of the invention, the number of layers of the electromagnetic steel sheets laminated in the axial direction forming the yoke portion is the same as the number of electromagnetic steel sheets laminated in the axial direction forming the tooth portion. Make more than the number of layers.
【００１１】第４の発明は、第１または第２の発明にお
いて、前記ヨーク部を構成する軸方向に積層した電磁鋼
板の厚さを、前記ティース部を構成する軸方向に積層し
た電磁鋼板の厚さよりも大きくする。According to a fourth aspect of the present invention, in the first or second aspect of the invention, the thickness of the electromagnetic steel sheets laminated in the axial direction forming the yoke portion is the same as the electromagnetic steel sheets laminated in the axial direction forming the tooth portion. Greater than thickness.
【００１２】第５の発明は、第１から第４の発明におい
て、前記ヨーク部とティース部との間には磁性リングを
介在させて磁気的に結合する。In a fifth aspect based on the first to fourth aspects, a magnetic ring is interposed between the yoke portion and the teeth portion for magnetic coupling.
【００１３】第６の発明は、第１の発明において、前記
ロータが、前記ステータの内側で回転するインナーロー
タと、同じく外側で回転するアウターロータとで構成さ
れ、前記ステータはコイルを巻装するティース部のみを
備え、アウターロータまたはインナーロータをヨーク部
として機能させ、アウターロータまたはインナーロータ
の軸方向長さを前記ティース部の軸方向長さよりも大き
くする。In a sixth aspect based on the first aspect, the rotor comprises an inner rotor that rotates inside the stator and an outer rotor that also rotates outside, and the stator has a coil wound around it. Only the teeth portion is provided, the outer rotor or the inner rotor is made to function as a yoke portion, and the axial length of the outer rotor or the inner rotor is made larger than the axial length of the teeth portion.
【００１４】[0014]
【作用・効果】第１の発明では、ヨーク部の軸方向長さ
を大きくすることにより、ヨーク断面積を大きくでき、
これにより最大磁束鎖交数を増やし、回転電機の出力効
率を高めることができるが、このとき、ヨーク部とティ
ース部とを別部材により構成するので、それぞれの形状
が単純化でき、生産コストの低減が図れる。In the first aspect of the invention, the yoke cross-sectional area can be increased by increasing the axial length of the yoke portion.
As a result, the maximum number of magnetic flux linkages can be increased and the output efficiency of the rotary electric machine can be increased. However, at this time, the yoke part and the teeth part are formed by separate members, so that the respective shapes can be simplified and the production cost can be reduced. It can be reduced.
【００１５】第２の発明では、コイルを巻装した状態で
のティース部の軸方向長さがヨーク部とほぼ一致するの
で、ステータの空きスペースを最大限に利用することが
でき、回転電機の軸方向の長さを同一としたときの、出
力効率を最大にできる。In the second aspect of the invention, the axial length of the teeth portion when the coil is wound is substantially the same as that of the yoke portion, so that the free space of the stator can be utilized to the maximum extent, and the rotating electric machine can be used. The output efficiency can be maximized when the lengths in the axial direction are the same.
【００１６】第３、第４の発明では、ヨーク部とティー
ス部とを互いに積層電磁鋼板で構成するので、パウダー
状の金属でステータを構成するの比較して、単位体積当
たりの出力密度を高められ、その分だけ出力効率が向上
する。また、各電磁鋼板の形状はそれぞれ同一のものを
用いることができ、部品点数の削減とコストの低減が可
能となる。In the third and fourth aspects of the invention, since the yoke portion and the teeth portion are made of laminated electromagnetic steel sheets, the output density per unit volume is increased as compared with the case where the stator is made of powder metal. The output efficiency is improved accordingly. In addition, the same shape can be used for each electromagnetic steel sheet, and the number of parts and the cost can be reduced.
【００１７】第５の発明では、ヨーク部とティース部と
の間に磁性リングを介在させることにより、これらの間
の磁気抵抗を上げることなく磁界を形成することがで
き、分割による磁気抵抗を抑制し、磁束鎖交数の低下を
防止できる。According to the fifth aspect of the invention, by interposing the magnetic ring between the yoke portion and the teeth portion, a magnetic field can be formed without increasing the magnetic resistance between them, and the magnetic resistance due to division is suppressed. However, a decrease in the number of magnetic flux linkages can be prevented.
【００１８】第６の発明では、一つのステータに対して
２つのロータをもつ同軸三層構造の回転電機において
も、アウターロータまたはインナーロータを実質的にス
テータヨーク部として機能させ、これらをステータより
も軸方向に長くすることにより、回転電機の軸方向の長
さを増大させずに、磁束鎖交数を増やして出力効率を高
めることができる。According to the sixth aspect of the invention, also in the rotary electric machine having a coaxial three-layer structure having two rotors for one stator, the outer rotor or the inner rotor is made to substantially function as a stator yoke portion, and these are made to function as a stator. Also, by increasing the length in the axial direction, the output efficiency can be increased by increasing the number of magnetic flux linkages without increasing the axial length of the rotating electric machine.
【００１９】[0019]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【００２０】図１、図２において、１はロータ、２はロ
ータ１に埋め込んだ永久磁石、３はステータで、ステー
タ３はヨーク部４とティース部５と磁性リング８とから
構成されている。1 and 2, 1 is a rotor, 2 is a permanent magnet embedded in the rotor 1, 3 is a stator, and the stator 3 is composed of a yoke portion 4, a tooth portion 5 and a magnetic ring 8.
【００２１】ヨーク部４はティース部５よりもロータ軸
方向の長さが大きくとってあり、ティース部５の軸方向
両端よりもそれぞれ外側に延びだしている。そして、テ
ィース部５には各スロットにコイル９が巻回されるが、
このコイル９の軸方向の両端の位置が、ヨーク部４の両
端の位置とほぼ同じ位置になるようにしてある。The yoke portion 4 is longer than the tooth portion 5 in the axial direction of the rotor, and extends outward from both axial ends of the tooth portion 5. The coil 9 is wound around each of the slots on the tooth portion 5,
The positions of both ends of the coil 9 in the axial direction are set to be substantially the same as the positions of both ends of the yoke portion 4.
【００２２】ヨーク部４とティース部５の構成部材は互
いに分離されており、いずれも薄板状の電磁鋼板６と７
を軸方向に積層して構成されるもので、図３の場合は、
ヨーク部４の電磁鋼板６の方がティース部５の電磁鋼板
７よりも積層枚数が多く、ヨーク部４の軸方向長さがテ
ィース部５の軸方向長さよりも大きくなっている。The constituent members of the yoke portion 4 and the teeth portion 5 are separated from each other, and both are thin electromagnetic steel plates 6 and 7.
Is laminated in the axial direction. In the case of FIG.
The electromagnetic steel plates 6 of the yoke portion 4 have a larger number of laminated layers than the electromagnetic steel plates 7 of the tooth portion 5, and the axial length of the yoke portion 4 is larger than the axial length of the tooth portion 5.
【００２３】これに対して、図４の場合は、同数の積層
枚数であるが、ヨーク部４の電磁鋼板６の厚さがティー
ス部５の電磁鋼板７の厚さよりも大きく、このため同一
枚数でもヨーク部４の軸方向の長さが大きくなる。On the other hand, in the case of FIG. 4, although the number of laminated sheets is the same, the thickness of the electromagnetic steel sheet 6 of the yoke portion 4 is larger than the thickness of the electromagnetic steel sheet 7 of the tooth portion 5, and therefore the same number of sheets is formed. However, the axial length of the yoke portion 4 becomes large.
【００２４】そして、ヨーク部４の内側とティース部５
の外側との間には円筒状の磁性リング８が介装してあ
り、この磁性リング８がヨーク部４とティース部５との
間の磁気抵抗の増加を抑制すると共に、図３、図４にも
示すように、ティース部５からヨーク部４への磁束の流
れを適正配分する。The inside of the yoke portion 4 and the teeth portion 5
A cylindrical magnetic ring 8 is interposed between the magnetic ring 8 and the outer side of the magnet, and the magnetic ring 8 suppresses an increase in the magnetic resistance between the yoke portion 4 and the teeth portion 5, and As also shown, the flow of magnetic flux from the teeth portion 5 to the yoke portion 4 is properly distributed.
【００２５】ステータ３のヨーク部分を通過する最大磁
束鎖交数は、ヨークの飽和磁束密度と軸方向を通るヨー
ク断面でのヨーク断面積から決まり、したがって飽和磁
束密度が一定ならば、ヨーク断面積を大きくすることに
より、最大磁束鎖交数を増やすことができる。前記ヨー
ク断面積は、ヨーク断面の軸方向の長さと径方向の長さ
から決まり、したがって、図３や図４のようにヨーク部
４の軸方向長さを大きくすることにより、径方向の大き
さは同じであっても、ヨーク断面積を大きくすることが
可能となり、回転電機の出力効率を高められる。The maximum number of flux linkages passing through the yoke portion of the stator 3 is determined by the saturation magnetic flux density of the yoke and the yoke cross-sectional area of the yoke cross section passing through the axial direction. By increasing, the maximum number of magnetic flux linkages can be increased. The yoke cross-sectional area is determined from the axial length and the radial length of the yoke cross section. Therefore, by increasing the axial length of the yoke portion 4 as shown in FIGS. Even if the length is the same, the yoke cross-sectional area can be increased, and the output efficiency of the rotary electric machine can be improved.
【００２６】そしてヨーク部４とティース部５を構成す
る積層電磁鋼板６と７は、互いに分離されていて、その
形状は単純な薄板鋼板であり、互いにはそれぞれ同一の
形状のため、製造コストについては複雑でかつ異なる形
状のものを準備するのに比較して、はるかに低価格にで
きる。The laminated electromagnetic steel plates 6 and 7 constituting the yoke part 4 and the teeth part 5 are separated from each other and their shapes are simple thin steel plates. Can be much cheaper than preparing complex and different shapes.
【００２７】また、電磁鋼板のヨークは、パウダー状の
金属でステータを構成するのと比較して、単位体積当た
りの出力密度が高く、その分だけ出力効率が向上する。Further, the yoke of the electromagnetic steel plate has a higher output density per unit volume as compared with the case where the stator is made of powdery metal, and the output efficiency is correspondingly improved.
【００２８】次に図５、図６により他の実施形態につい
て説明する。Next, another embodiment will be described with reference to FIGS.
【００２９】これはロータとしてステータ３を境にし
て、これと同軸的に回転自在な、その内側のインナーロ
ータ１ａと、外側のアウターロータ１ｂを備えるもの
で、この同軸三層構造の回転電機についての基本的な構
成は、本出願人よる特開平１１−２７５８２６号に詳し
く開示されている。This rotor is provided with an inner rotor 1a on the inner side and an outer rotor 1b on the outer side which are rotatable coaxially with the stator 3 as a boundary. The basic configuration of the above is disclosed in detail in Japanese Patent Application Laid-Open No. 11-275826 by the present applicant.
【００３０】インナーロータ１ａには永久磁石２ａが、
またアウターロータ１ｂにも磁極数に対応して永久磁石
２ｂが配設される。そして、アウターロータ１ｂはステ
ータ３に対して、コイル９の分だけ、軸方向に長く形成
される。ステータ３については、コイル９が巻装される
ティース部５のみが構成され、ヨーク部についてはアウ
ターロータ１ｂがその役目を兼用する。なお、ステータ
３の電磁鋼板７と同じように、アウターロータ１ｂも電
磁鋼板１２を軸方向に積層して構成される。A permanent magnet 2a is attached to the inner rotor 1a.
The outer rotor 1b is also provided with permanent magnets 2b corresponding to the number of magnetic poles. The outer rotor 1b is formed in the axial direction longer than the stator 3 by the amount of the coil 9. For the stator 3, only the teeth portion 5 around which the coil 9 is wound is configured, and for the yoke portion, the outer rotor 1b also serves that role. The outer rotor 1b is also formed by stacking electromagnetic steel plates 12 in the axial direction, like the electromagnetic steel plates 7 of the stator 3.
【００３１】アウターロータ１ｂとステータ３とは、そ
の間に介在する環状のエアギャップ１０を介して、ステ
ータ３のティース部５とアウターロータ１ｂとが磁気的
に結合される。このため、図７の磁束密度概念図にも示
すように、磁気密度に関しては、軸方向の両端部に比較
して中央部の磁束密度が高くなり、中央部が飽和する順
に端部の磁束密度が高まっていく。The outer rotor 1b and the stator 3 are magnetically coupled to the teeth portion 5 of the stator 3 and the outer rotor 1b via an annular air gap 10 interposed therebetween. For this reason, as shown in the conceptual diagram of magnetic flux density in FIG. 7, as for magnetic density, the magnetic flux density at the central portion becomes higher than that at both end portions in the axial direction, and the magnetic flux density at the end portions becomes higher in the order of saturation of the central portion. Is increasing.
【００３２】この同軸三層構造の回転電機においては、
アウターロータ１ｂの軸方向長さを大きくすることは、
インナーロータ１ａにとってヨーク断面積を大きくした
の同じことになる。これによりインナーロータ１ａに関
する出力効率を向上させられる。In this coaxial three-layer structure rotary electric machine,
Increasing the axial length of the outer rotor 1b is
For the inner rotor 1a, this is the same as increasing the yoke cross-sectional area. As a result, the output efficiency of the inner rotor 1a can be improved.
【００３３】なお、このことは、逆にインナーロータ１
ａの軸方向長さを大きくすることにより、アウターロー
タ１ｂの出力向上につなげることも可能である。On the contrary, this means that the inner rotor 1
By increasing the axial length of a, it is possible to improve the output of the outer rotor 1b.
【００３４】図６ではステータ３の電磁鋼板７に比べて
アウターロータ１ｂの電磁鋼板１２の枚数を多く積層し
ているが、図８のように、同一の積層枚数として、その
軸方向の厚さを、アウターロータ１ｂの電磁鋼板１２が
大きくなるようにしても、同じ効果を奏することができ
る。In FIG. 6, the number of the electromagnetic steel plates 12 of the outer rotor 1b is greater than that of the electromagnetic steel plates 7 of the stator 3, but as shown in FIG. Even if the electromagnetic steel plate 12 of the outer rotor 1b is made larger, the same effect can be obtained.
【００３５】本発明は上記の実施の形態に限定されず
に、その技術的な思想の範囲内において種々の変更がな
しうることは明白である。It is obvious that the present invention is not limited to the above-mentioned embodiments and various modifications can be made within the scope of the technical idea thereof.
【図１】本発明の第１の実施の形態を示す要部の正面図
である。FIG. 1 is a front view of an essential part showing a first embodiment of the present invention.
【図２】図１のＡ−Ａ線に沿う断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図３】図２に対応する一部拡大断面図である。FIG. 3 is a partially enlarged sectional view corresponding to FIG.
【図４】同じくその変形例である図２に対応する一部拡
大断面図である。FIG. 4 is a partially enlarged sectional view corresponding to FIG. 2, which is also a modification thereof.
【図５】第２の実施の形態の要部の正面図である。FIG. 5 is a front view of a main part of the second embodiment.
【図６】図５のＢ−Ｂ線に沿う断面図である。6 is a cross-sectional view taken along the line BB of FIG.
【図７】磁束密度の概念図である。FIG. 7 is a conceptual diagram of magnetic flux density.
【図８】同じくその変形例である図６に対応する断面図
である。FIG. 8 is a sectional view corresponding to FIG. 6, which is also a modification thereof.
【図９】従来例の正面図である。FIG. 9 is a front view of a conventional example.
【図１０】図９のＣ−Ｃ線に沿う断面図である。10 is a cross-sectional view taken along the line CC of FIG.
【図１１】同じくその変形例である図１０に対応する断
面図である。FIG. 11 is a sectional view corresponding to FIG. 10, which is also a modification thereof.
１ ロータ ２ 永久磁石 ３ ステータ ４ ヨーク部 ５ ティース部 ６ 電磁鋼板 ７ 電磁鋼板 ８ 磁性リング １０ エアギャップ 1 rotor 2 permanent magnet 3 stator 4 Yoke part 5 teeth section 6 Electrical steel sheet 7 Magnetic steel sheet 8 magnetic ring 10 air gap
Claims (6)
た回転電機において、 前記ステータを、ヨーク部及びコイルが巻装されるティ
ース部とを別体にして構成し、ヨーク部の軸方向長さを
ティース部の軸方向長さよりも大きくしたことを特徴と
する回転電機。1. A rotating electrical machine comprising a stator around which a coil is wound and a rotor rotatably arranged coaxially with the stator, wherein the stator comprises a yoke portion and a tooth portion around which the coil is wound. A rotating electric machine, wherein the rotating electric machine is configured as a separate body, and the axial length of the yoke portion is larger than the axial length of the tooth portion.
ルを含むティース部の軸方向の長さとほぼ一致させてあ
る請求項１に記載の回転電機。2. The rotary electric machine according to claim 1, wherein an axial length of the yoke portion is substantially equal to an axial length of the teeth portion including the coil.
電磁鋼板の層数を、前記ティース部を構成する軸方向に
積層した電磁鋼板の層数よりも多くした請求項１または
２に記載の回転電機。3. The method according to claim 1, wherein the number of layers of the electromagnetic steel sheets laminated in the axial direction constituting the yoke portion is larger than the number of layers of the electromagnetic steel sheets laminated in the axial direction constituting the teeth portion. Rotating electric machine.
電磁鋼板の厚さを、前記ティース部を構成する軸方向に
積層した電磁鋼板の厚さよりも大きくした請求項１また
は２に記載の回転電機。4. The thickness of the electromagnetic steel sheets laminated in the axial direction constituting the yoke portion is larger than the thickness of the electromagnetic steel sheets laminated in the axial direction constituting the teeth portion. Rotating electric machine.
リングを介在させて磁気的に結合した請求項１〜４のい
ずれか一つに記載の回転電機。5. The rotating electric machine according to claim 1, wherein a magnetic ring is interposed between the yoke portion and the teeth portion to be magnetically coupled to each other.
するインナーロータと、同じく外側で回転するアウター
ロータとで構成され、前記ステータはコイルを巻装する
ティース部のみを備え、アウターロータまたはインナー
ロータをヨーク部として機能させ、アウターロータまた
はインナーロータの軸方向長さを前記ティース部の軸方
向長さよりも大きくした請求項１に記載の回転電機。6. The rotor comprises an inner rotor that rotates inside the stator and an outer rotor that also rotates outside, and the stator includes only a tooth portion around which a coil is wound. The rotating electric machine according to claim 1, wherein the rotor functions as a yoke portion, and the axial length of the outer rotor or the inner rotor is larger than the axial length of the teeth portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001217485A JP3543792B2 (en) | 2001-07-18 | 2001-07-18 | Rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001217485A JP3543792B2 (en) | 2001-07-18 | 2001-07-18 | Rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003032924A true JP2003032924A (en) | 2003-01-31 |
| JP3543792B2 JP3543792B2 (en) | 2004-07-21 |
Family
ID=19051796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001217485A Expired - Fee Related JP3543792B2 (en) | 2001-07-18 | 2001-07-18 | Rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3543792B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1528659A3 (en) * | 2003-10-10 | 2005-10-12 | Nissan Motor Co., Ltd. | Magnetic circuit structure for rotary electric machine |
| JP2008029130A (en) * | 2006-07-21 | 2008-02-07 | Daikin Ind Ltd | Rotating electric machine |
| FR2910736A1 (en) * | 2006-12-22 | 2008-06-27 | Valeo Equip Electr Moteur | Stator for e.g. alternator, of motor vehicle, has body including two complementary annular parts that have axial lengths respectively, and tooth alternatively integrated to one of annular parts of body |
| US7932647B2 (en) | 2005-03-28 | 2011-04-26 | Nitto Kohki Co., Ltd. | Electromagnetic reciprocating fluid apparatus |
| WO2018173877A1 (en) * | 2017-03-22 | 2018-09-27 | 日立ジョンソンコントロールズ空調株式会社 | Compressor |
| KR102182353B1 (en) * | 2019-08-13 | 2020-11-24 | 두산중공업 주식회사 | Rotation electrical machine |
| CN114285195A (en) * | 2021-12-08 | 2022-04-05 | 东南大学 | End ring device of motor core yoke part |
-
2001
- 2001-07-18 JP JP2001217485A patent/JP3543792B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1528659A3 (en) * | 2003-10-10 | 2005-10-12 | Nissan Motor Co., Ltd. | Magnetic circuit structure for rotary electric machine |
| US7053513B2 (en) | 2003-10-10 | 2006-05-30 | Nissan Motor Co., Ltd. | Magnetic circuit structure for rotary electric machine |
| CN100380787C (en) * | 2003-10-10 | 2008-04-09 | 日产自动车株式会社 | Magnetic circuit structure for rotary electric machine |
| US7932647B2 (en) | 2005-03-28 | 2011-04-26 | Nitto Kohki Co., Ltd. | Electromagnetic reciprocating fluid apparatus |
| JP2008029130A (en) * | 2006-07-21 | 2008-02-07 | Daikin Ind Ltd | Rotating electric machine |
| FR2910736A1 (en) * | 2006-12-22 | 2008-06-27 | Valeo Equip Electr Moteur | Stator for e.g. alternator, of motor vehicle, has body including two complementary annular parts that have axial lengths respectively, and tooth alternatively integrated to one of annular parts of body |
| WO2008087341A2 (en) * | 2006-12-22 | 2008-07-24 | Valeo Equipements Electriques Moteur | Stator for a multiple phase rotary electric machine, multiple phase rotary electric machine including such rotor, and method for making such rotor |
| WO2008087341A3 (en) * | 2006-12-22 | 2008-09-12 | Valeo Equip Electr Moteur | Stator for a multiple phase rotary electric machine, multiple phase rotary electric machine including such rotor, and method for making such rotor |
| WO2018173877A1 (en) * | 2017-03-22 | 2018-09-27 | 日立ジョンソンコントロールズ空調株式会社 | Compressor |
| KR102182353B1 (en) * | 2019-08-13 | 2020-11-24 | 두산중공업 주식회사 | Rotation electrical machine |
| CN114285195A (en) * | 2021-12-08 | 2022-04-05 | 东南大学 | End ring device of motor core yoke part |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3543792B2 (en) | 2004-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW501327B (en) | Electrical machine stator and rotor | |
| CN101978579B (en) | Permanent magnet rotor with flux concentrating pole pieces | |
| US9071118B2 (en) | Axial motor | |
| US20050179336A1 (en) | Axial gap electric rotary machine | |
| US7638913B2 (en) | Rotor core with spacers | |
| JP6599005B2 (en) | Consecutive pole type rotor, electric motor and air conditioner | |
| US20050179337A1 (en) | Axial gap electric rotary machine | |
| EP1501172A2 (en) | Brushless permanent magnet machine with axial modules of rotor magnetization skew and method of producing the same | |
| JPS6028758A (en) | Rotary electric machine with permanent magnet | |
| JP2013255427A (en) | Electromechanical assembly | |
| JP2007074870A (en) | Rotor embedded with permanent magnet and motor embedded with permanent magnet | |
| JP2000253635A (en) | Axial gap motor | |
| AU2005242216A1 (en) | Motor | |
| CN107078617A (en) | Bimorph transducer type circulator | |
| JP4600860B2 (en) | Permanent magnet synchronous motor | |
| JP2005080474A (en) | Brushless motor | |
| JP2006271142A (en) | Rotary machine | |
| JP2001025183A (en) | Stator of motor | |
| JP3543792B2 (en) | Rotating electric machine | |
| JP5702118B2 (en) | Rotor structure and motor | |
| JP2006254561A (en) | Rotary electric machine | |
| JP2009050116A (en) | Capacitor motor, and manufacturing method thereof | |
| JPH07264793A (en) | Rotating machine | |
| JPH08237891A (en) | Stator core of electric rotary machine | |
| JPS6096145A (en) | Equial polarity exciting ac machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20031216 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040210 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040316 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040329 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090416 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090416 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100416 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110416 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120416 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130416 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130416 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140416 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |