JPS60152240A - Rotary electric machine - Google Patents
Rotary electric machineInfo
- Publication number
- JPS60152240A JPS60152240A JP675984A JP675984A JPS60152240A JP S60152240 A JPS60152240 A JP S60152240A JP 675984 A JP675984 A JP 675984A JP 675984 A JP675984 A JP 675984A JP S60152240 A JPS60152240 A JP S60152240A
- Authority
- JP
- Japan
- Prior art keywords
- field
- armature
- cogging force
- poles
- electric machine
- 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
- 238000004804 winding Methods 0.000 claims abstract description 14
- 230000001788 irregular Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、給電することにより回転出力を得ることがで
きる電動機、あるいは外部から回転力を与えることによ
り電気出力を得ることができる発電機どい−）だ回転電
機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric motor that can obtain a rotational output by supplying electric power, or a rotating electric machine that is a generator that can obtain an electric output by applying a rotational force from the outside. It is.
一般に、電機子巻線を施すために電機子鉄心に溝を設け
て突極構造にした回転電機は、突極構造でない回転電機
に較べて電機子巻線に多くの界磁磁束を鎖交させること
ができるため、小型、軽量で大きな出力が得られる回転
電機どなる。しかし、電機子鉄心が突極構造の場合には
、電機子鉄心か磁気的に不均一な構造であるために、例
えは永久磁石なとにより構成される界磁部との相互作用
によってコギングを発生−・するという欠点がある。In general, rotating electric machines that have a salient pole structure by providing grooves in the armature core for armature windings have more field magnetic flux interlinking with the armature windings than rotating electric machines that do not have a salient pole structure. As a result, it is a rotating electric machine that is small, lightweight, and can provide high output. However, when the armature core has a salient pole structure, the armature core has a magnetically non-uniform structure, so cogging may occur due to interaction with the field part composed of permanent magnets. It has the disadvantage that it occurs.
このことについて第１図および第２図を参照して説明す
る。第１図は電機子が究極構造の従来の回転電機の一例
の概略断面図である。This will be explained with reference to FIGS. 1 and 2. FIG. 1 is a schematic cross-sectional view of an example of a conventional rotating electrical machine with an ultimate structure of the armature.
同図において、１は２極に着磁された円環状の永久磁石
で構成された界磁部、２は電機子を構成する電機子鉄心
であり、これは３つの突極部２ａ。In the figure, numeral 1 denotes a field section composed of an annular permanent magnet magnetized into two poles, and numeral 2 denotes an armature core constituting an armature, which has three salient pole sections 2a.
２ｂ、２ｃを有する。そして上記突極部２ａ、２ｂ、２
ｃは前記界磁部工の着磁された内面と所要間隙あけて対
向せられ、界磁部ｌと電機子鉄心２のうち、いずれか一
方か他方に対して回転自在とな−）でいる。なお、３ａ
、３ｂ、３ｃは巻線用の溝であり、また、４ａ、４ｂ、
４ｃは突極部２ａ、２ｈ、２ｃにそれぞれ集中巻きして
巻装された３相の電機子巻線である。It has 2b and 2c. And the salient pole parts 2a, 2b, 2
c is opposed to the magnetized inner surface of the field part with a required gap, and is rotatable relative to either the field part l or the armature core 2, or the other. . In addition, 3a
, 3b, 3c are grooves for winding, and 4a, 4b,
4c is a three-phase armature winding wound around the salient pole portions 2a, 2h, and 2c in a concentrated manner.
ここで、第１図の回転電機を電動機と考えると。Now, if we consider the rotating electrical machine in Figure 1 to be an electric motor.
電機子巻線４．１．４ ｂ、 ４ ｃに順々電流を流す
こ７どにより、界磁部１との間で電磁的な相互作用を発
生させて持続的な回転［・ルクを得ることができる。By sequentially passing current through the armature windings 4.1.4b and 4c, electromagnetic interaction is generated with the field section 1 to obtain sustained rotation. be able to.
また、第１図の回転電機を発電機と考えるならば、回転
子である界磁部］を外部から回転させるこにより電機子
巻線４ａ、４ｂ、４ｃに３相の交流信号を得ることがで
きる。Furthermore, if we consider the rotating electric machine in Figure 1 to be a generator, it is possible to obtain three-phase AC signals to the armature windings 4a, 4b, and 4c by externally rotating the rotor, which is the field section. can.
ところで、コギング力は界磁部と電機子の間の磁場にｔ
ｌ？えられた磁気エネルギーが両者の相対的な回転に応
じて変化することにより生じるものであり、特に、界磁
部の磁気的不均一−性（ｗＡ極に起因）と電機子鉄心の
磁気的不均一性（溝に起因）の両者に関係して発生し、
第１図のごとく界磁部１ど電機子鉄心２の突極部２ 、
′＋＋ ２ ｂ 、 ２ ｃ、の両方に磁気的な周期性
がある場合には、一般に、その両者に共通して存在する
調波成分（整合成分）のコギング力が生じる。By the way, the cogging force is caused by t in the magnetic field between the field part and the armature.
l? This is caused by the generated magnetic energy changing according to the relative rotation of the two, and in particular, it is caused by the magnetic non-uniformity of the field part (caused by the wA pole) and the magnetic imbalance of the armature core. Occurs in relation to both uniformity (due to grooves),
As shown in Fig. 1, the field part 1 and the salient pole part 2 of the armature core 2,
′++ When both 2 b and 2 c have magnetic periodicity, a cogging force of a harmonic component (matching component) that is common to both is generally generated.
この点に対処するものとして、」二記調波成分の次数を
高くすることにより、コギング力を小さくする手段が提
案されている（例、特公昭５８−４２７０７り公報）。To address this problem, a method has been proposed in which the cogging force is reduced by increasing the order of the second order harmonic component (for example, Japanese Patent Publication No. 58-42707).
第２図はかかる方式の一例を示すものであって、この例
で、第１図゛の例と異なるところは、電機子鉄心］２の
突極部＋２ａ、 １２ｂ、 ＋２ｃで、界磁部１と対向
する部分に補助溝５ａ＋、５＊２．５１）１゜５ｂ２．
５ｃ＋、 ５ｃ２を設けた点である。なお、」二記各補
助溝５ ｎ １〜５ｃ２は界磁部１または電機子の回転
軸すなわち、中心点Ａを通る軸心線の長手方向（図面の
紙面に対して垂直な方向）に設けら、ｌ］、でいる。FIG. 2 shows an example of such a system, and this example differs from the example in FIG. Auxiliary groove 5a+, 5*2.51)1°5b2.
The point is that 5c+ and 5c2 are provided. In addition, each of the auxiliary grooves 5n1 to 5c2 described in ``2'' is provided in the longitudinal direction of the rotation axis of the field part 1 or the armature, that is, the axis passing through the center point A (direction perpendicular to the paper surface of the drawing). et al., l].
この結果、補助溝を設けることにより、実質的にコギン
グ力の原因どなる溝の数を増したことになって、鉄心に
よる調波成分か、補助溝を２個設けたどすれば３倍の周
波数どなるので高周波成分どなり、コギング力か減少す
るものである。しかし、かかる手段では、界磁部の着磁
状態がある特定の場合にのみ有効であるが、この着磁状
態が変化すると、第６図に示す如くコギング力が変（ヒ
してしまう欠点がある。As a result, by providing auxiliary grooves, the number of grooves that are the cause of cogging force is increased, and the frequency is tripled if two auxiliary grooves are provided. As a result, the high frequency components become louder and the cogging force decreases. However, this method is effective only in a certain specific case of the magnetized state of the field part, but has the disadvantage that when this magnetized state changes, the cogging force changes as shown in FIG. be.
第６図は、磁束波形の形状変化にｆ！トな−）で、コギ
ング力かいがように変ｆヒするかを示すものであり、図
において、破線ＱＩは第１図の例の場合のコギング力変
化曲線であり、−・点Ｉｎ線ｅλは第２図の例の場合の
コギング力変化曲線である。Figure 6 shows f! In the figure, the broken line QI is the cogging force change curve for the example shown in Figure 1, and the point In line eλ is a cogging force change curve for the example shown in FIG.
一般に、界磁部をバラツキなく一定の状態に着磁するこ
とは困難であり、着磁ヘッドのバラツキ、同パノ１；と
界磁部の永久磁石とのキャップのバラツキ、着磁時の電
流１時間等のバラツキは必す生ずるものであり、この結
果、磁束波形が矩形波（Ｏ＝０°）から三角波（０＝９
０°） ノ間で変ｆヒしてしまい（第７図参照）、これ
があイ）ことによってコギング力に大きなバラツキを生
ずる。また。In general, it is difficult to magnetize the field part in a constant state without variations, such as variations in the magnetizing head, variations in the cap between the permanent magnet of the field part, and current during magnetization. Variations in time, etc. inevitably occur, and as a result, the magnetic flux waveform changes from a rectangular wave (O = 0°) to a triangular wave (0 = 9°).
0°) (see Figure 7), which causes large variations in the cogging force. Also.
上記の如（、突極部に複数の補助溝を設ける際には、金
型が複雑になり、しかも補助溝の部分の金型が弱くなり
、金型の寿命も短くな−）でしまう。As described above, when a plurality of auxiliary grooves are provided in the salient pole portion, the mold becomes complicated, and the mold in the auxiliary groove portion becomes weak, and the life of the mold is shortened.
本発明は、突極部に凸部を設けることにより、界磁部の
着磁状態にバラツキがあっても、コギングノラをほぼ一
定の低トルクにすることのできる回転電機を提供するこ
とを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a rotating electric machine that can maintain a substantially constant low torque of the cogging roller even if there are variations in the magnetized state of the field part by providing a convex part in the salient pole part. do.
以下、本発明を第３図に示す実施例につき説明するに、
同図の実施例において、第１図の従来例と相異するとこ
ろは、電機子鉄心２２の突極部２２ａ。The present invention will be described below with reference to the embodiment shown in FIG.
The embodiment shown in the figure differs from the conventional example shown in FIG. 1 in the salient pole portion 22a of the armature core 22.
２２ｂ 、 ２２ｃの界磁部１と対向する部位に、突部
２２旧２２２ｂｌ 、２２ｃ＋をそれぞれ設けたことに
ある。The protrusions 22b and 22c+ are respectively provided at the portions 22b and 22c facing the field portion 1.
この凸部２２．］＋ 、 ２２ｂ １．２２ｃ＋は、こ
の実施例では界磁部１の磁極数が２どなっているから１
巻線用の溝３ａ、３ｂ、３ｃに対して、３６０＠／ ２
（＝ １８０−だけ、円周方向にそれぞれすれた部位
に設けられる。This convex portion 22. ]+ , 22b 1.22c+ is 1 because the number of magnetic poles in the field part 1 is 2 in this embodiment.
360@/2 for winding grooves 3a, 3b, 3c
(= 180-) are provided at positions that are mutually separated from each other in the circumferential direction.
即ち、コノ例の場合には、凸部２２．］＋、２２ｂ＋、
２２ｃ＋が電機子鉄心２２の中心に対して、溝３ ａ、
３ ｂ、３ｃど相苅面した部位に設けられることにな
る。That is, in the case of this example, the convex portion 22. ]+, 22b+,
22c+ is located in the groove 3a, with respect to the center of the armature core 22.
3b and 3c will be installed in areas facing each other.
マタ、第４図に示す如く、凸部２２ａ＋ 、２２ｂ＋
、２２ｃ１の角度０１については、溝３ａ、３ｂ、３ｃ
の角度。２と同一にすることが好ましいが１発生トルク
およびコギング力の許容範囲から、ｏ＋＝（０，５〜２
）・０λの範囲であれは実用上問題はない。さらに凸部
の高さｔについても、発生トルクとの相対関係から適宜
に設定され得るものであるが、ｔを大きくすると、コギ
ング力に対しては有効であっても、界磁部１どの間の有
効磁束が減少するのも発生トルクは減少してしまう、逆
にｔを小さくすると、発生トルクは増大するが、コギン
グ力に対しては効果か小さくなる。従って、このｌの値
も両者の関係から設定するのがよい。As shown in FIG. 4, the convex portions 22a+, 22b+
, 22c1, grooves 3a, 3b, 3c
angle. It is preferable to make it the same as 2, but from the permissible range of the generated torque and cogging force, o+=(0,5~2
) · There is no practical problem within the range of 0λ. Furthermore, the height t of the convex portion can be set as appropriate from the relative relationship with the generated torque, but if t is increased, even if it is effective against cogging force, the distance between the field portion 1 If the effective magnetic flux of t decreases, the generated torque also decreases.On the other hand, if t is decreased, the generated torque increases, but the effect on the cogging force becomes smaller. Therefore, the value of l should also be set based on the relationship between the two.
なお、−に２凸部２２ａ＋、２２ｂ＋、２２ｃ１は一般
汎用的には、６溝に対して、（３６０°／界磁極数）だ
け、円周方向にずれた部位にそれぞれ設けられることに
なる。Note that the two negative convex portions 22a+, 22b+, and 22c1 are generally provided at positions shifted from the six grooves by (360°/number of field poles) in the circumferential direction.
ここで、第５図は第３図をモデル的に展開したものを示
しており、この図において、ます、（、Ｉ）の状態では
、鉄心２２が図示右方向に移動している時には、界磁１
の中性点から突極２２１】の左端か煎れようとしている
。このどき、０部にてコギング力か発生するか、０部に
おいて、界磁の中性点に対して、突ｔＭ２２ｂの凸部２
２ｂ＋の右端か入ろうとしており、■、■の各部におい
ては、コギング力の方向が互いに；φとなって、コギン
グ力は全体としては相殺される。これに対し、（ｈ）図
の状態では。Here, FIG. 5 shows a model development of FIG. Magnet 1
The left end of the salient pole 221 is about to rise from the neutral point of . At this time, whether a cogging force is generated at the 0 part or the convex part 2 of the protrusion tM22b is generated at the 0 part with respect to the neutral point of the field.
The right end of 2b+ is about to enter, and the directions of the cogging force in each part of ■ and ■ become ;φ, and the cogging force cancels out as a whole. On the other hand, in the state shown in (h).
コギング力は発生しない。また（Ｃ）図では、◎。No cogging force occurs. Also, in figure (C), ◎.
０部において（ｎ）図と同様に互いに相殺されるので、
全体としてはコギング力は小さくなる。この結果、互い
に相殺されるようになるため、界磁１の波形にはほとん
ど影響されなくなり、第６図において、実線Ｑ３で示す
如く、磁束波形が変イヒしても、コギング力はほとんど
変化しない。In part 0, they cancel each other out as in figure (n), so
Overall, the cogging force becomes smaller. As a result, they cancel each other out, so they are almost unaffected by the waveform of field 1, and as shown by the solid line Q3 in Figure 6, even if the magnetic flux waveform changes, the cogging force hardly changes. .
以上、本発明によれば、巻線用の６溝に対して（３６０
°／界磁極数又はこの整数（ｇ）たけ、すれた位置であ
って、かつ、界磁と対向する、突極部の部位に、凸部を
設けたものであるから、巻線用の溝により生じるコギン
グ力を、その凸部によって互いに相殺することかでき、
コギング力を全体において著しく減少させることができ
る。また、巻線用の溝によるコギング力を凸部により直
接的に打ち消すため、界磁の磁束波形即ち、着磁状態に
はほとんど影響されなくなり、界磁に対する着磁にバラ
ツキがあっても、コギング力を減少させることかでき、
品質の安定した回転電機が得られる。As described above, according to the present invention, for the six winding grooves (360
°/Number of field poles or this integer (g), the convex part is provided at the part of the salient pole part that is away from the field and faces the field, so it is a groove for the winding. The cogging force generated by the convex parts can be canceled out by each other,
Cogging forces can be significantly reduced overall. In addition, since the cogging force caused by the winding groove is directly canceled by the convex part, it is almost unaffected by the magnetic flux waveform of the field, that is, the magnetization state, and even if there are variations in magnetization with respect to the field, cogging Can reduce power,
A rotating electric machine with stable quality can be obtained.
第１図および第２図は従来の各側の断面図、第３図は本
発明実施例の回転電機の断面図、第４図は電機子鉄心の
要部断面図、第５図はコギング力が相殺されることを説
明するのに用いた、第３図をモデル的に展開した図、第
６図は従来例と本発明例に関するコギング力の変化曲線
図、第７図は磁束波形が変化することを説明するための
図である。
１・・・・界磁、３ａ、３ｂ、３ｃ・・・・巻線用の溝
、２２−＝−電機子、２２Ｌ１．２２＋）、 ２２ｃｍ
突極、２２＋＋＋ 、２２ｂ＋ 、２２ｃヒ・・・凸部
。Figures 1 and 2 are cross-sectional views of each side of the conventional system, Figure 3 is a cross-sectional view of a rotating electrical machine according to an embodiment of the present invention, Figure 4 is a cross-sectional view of essential parts of the armature core, and Figure 5 is a cogging force. Figure 3 is a model development of Figure 3, which was used to explain that these are cancelled, Figure 6 is a diagram of changes in cogging force for the conventional example and the example of the present invention, Figure 7 is a diagram showing changes in the magnetic flux waveform. FIG. 1...Field, 3a, 3b, 3c...Groove for winding, 22-=-armature, 22L1.22+), 22cm
Salient pole, 22+++, 22b+, 22chi...convex portion.
Claims (1)
た巻線用の溝及び突極を有する電機子とを備え、かつ、
前記界磁と電機子のうちのいずれか一方を他方に対して
回転させる電機子において、前記電機子の突極の前記界
磁に対向する部位にして、かつ、前記巻線用の各溝の位
置に対して、（３６０°／界磁極数又はこの整数倍）だ
け、すれた部位に凸部を設けたことを特徴どする回転電
機。comprising a field magnetized to an even number of poles, and an armature having a winding groove and salient poles arranged opposite to the field magnet, and
In an armature in which one of the field and the armature is rotated relative to the other, a portion of the salient pole of the armature that faces the field, and each groove for the winding has a A rotating electric machine characterized in that a convex portion is provided at a portion that is deviated from the position by (360°/number of field poles or an integral multiple thereof).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP675984A JPS60152240A (en) | 1984-01-18 | 1984-01-18 | Rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP675984A JPS60152240A (en) | 1984-01-18 | 1984-01-18 | Rotary electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60152240A true JPS60152240A (en) | 1985-08-10 |
| JPH0219695B2 JPH0219695B2 (en) | 1990-05-02 |
Family
ID=11647103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP675984A Granted JPS60152240A (en) | 1984-01-18 | 1984-01-18 | Rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60152240A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63171142A (en) * | 1987-01-06 | 1988-07-14 | Sankyo Seiki Mfg Co Ltd | Rotary electric machine |
| JPS6485555A (en) * | 1987-09-28 | 1989-03-30 | Fanuc Ltd | Addendum shape of armature core of motor |
| US5138213A (en) * | 1989-12-13 | 1992-08-11 | U.S. Philips Corporation | Brushless d.c. motor |
| EP1047177A2 (en) * | 1999-04-07 | 2000-10-25 | Mabuchi Motor Co., Ltd | Miniature motor and method for manufacturing the same |
| WO2001084696A1 (en) * | 2000-04-28 | 2001-11-08 | Siemens Aktiengesellschaft | Brushless motor |
| FR2827091A1 (en) * | 2001-05-07 | 2003-01-10 | Sunonwealth Electr Mach Ind Co | Stator assembly for motor, has lower and upper pole plates with radial poles that include magnetic pole faces having same or different length |
| JP2003143784A (en) * | 2001-11-02 | 2003-05-16 | Sankyo Seiki Mfg Co Ltd | Motor with core and manufacturing method for the core |
| JP2007028853A (en) * | 2005-07-20 | 2007-02-01 | Yamaha Motor Co Ltd | Rotary electric machine and electric wheelchair |
| JP2007209186A (en) * | 2006-02-06 | 2007-08-16 | Mitsubishi Electric Corp | Synchronous motor and manufacturing method therefor |
| WO2008105049A1 (en) * | 2007-02-26 | 2008-09-04 | Mitsubishi Electric Corporation | Permanent magnet motor, hermetic compressor, and fan motor |
| US7528521B2 (en) | 2005-07-20 | 2009-05-05 | Yamaha Hatsudoki Kabushiki Kaisha | Rotary electric machine and electric wheelchair mounted with rotary electric machine |
| US7642686B2 (en) | 2005-07-20 | 2010-01-05 | Yamaha Hatsudoki Kabushiki Kaisha | Rotary electric machine and electric wheelchair mounted with rotary electric machine |
| US20110018384A1 (en) * | 2008-03-26 | 2011-01-27 | Nidec Corporation | Motor |
| WO2015194216A1 (en) * | 2014-06-19 | 2015-12-23 | 日本電産株式会社 | Motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08156858A (en) * | 1994-12-01 | 1996-06-18 | Goushi Giken Kogyo Kk | Seat cover device for motorcycle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48109403U (en) * | 1972-03-23 | 1973-12-17 | ||
| JPS5122701U (en) * | 1974-08-09 | 1976-02-19 | ||
| JPS5441504U (en) * | 1977-08-30 | 1979-03-20 | ||
| JPS5470007U (en) * | 1977-10-27 | 1979-05-18 | ||
| JPS54156705U (en) * | 1978-04-25 | 1979-10-31 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5228326A (en) * | 1975-08-28 | 1977-03-03 | Hoei Kogyo Kk | Paper take-out device for the electrophotographic copying machine |
-
1984
- 1984-01-18 JP JP675984A patent/JPS60152240A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48109403U (en) * | 1972-03-23 | 1973-12-17 | ||
| JPS5122701U (en) * | 1974-08-09 | 1976-02-19 | ||
| JPS5441504U (en) * | 1977-08-30 | 1979-03-20 | ||
| JPS5470007U (en) * | 1977-10-27 | 1979-05-18 | ||
| JPS54156705U (en) * | 1978-04-25 | 1979-10-31 |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63171142A (en) * | 1987-01-06 | 1988-07-14 | Sankyo Seiki Mfg Co Ltd | Rotary electric machine |
| JPS6485555A (en) * | 1987-09-28 | 1989-03-30 | Fanuc Ltd | Addendum shape of armature core of motor |
| US5138213A (en) * | 1989-12-13 | 1992-08-11 | U.S. Philips Corporation | Brushless d.c. motor |
| US6568066B2 (en) | 1999-04-07 | 2003-05-27 | Mabuchi Motor Co., Ltd. | Miniature motor and method for manufacturing the same |
| EP1047177A3 (en) * | 1999-04-07 | 2002-03-06 | Mabuchi Motor Co., Ltd | Miniature motor and method for manufacturing the same |
| EP1047177A2 (en) * | 1999-04-07 | 2000-10-25 | Mabuchi Motor Co., Ltd | Miniature motor and method for manufacturing the same |
| WO2001084696A1 (en) * | 2000-04-28 | 2001-11-08 | Siemens Aktiengesellschaft | Brushless motor |
| US6847149B2 (en) | 2000-04-28 | 2005-01-25 | Siemens Aktiengesellschaft | Brushless motor |
| FR2827091A1 (en) * | 2001-05-07 | 2003-01-10 | Sunonwealth Electr Mach Ind Co | Stator assembly for motor, has lower and upper pole plates with radial poles that include magnetic pole faces having same or different length |
| JP2003143784A (en) * | 2001-11-02 | 2003-05-16 | Sankyo Seiki Mfg Co Ltd | Motor with core and manufacturing method for the core |
| JP4712465B2 (en) * | 2005-07-20 | 2011-06-29 | ヤマハ発動機株式会社 | Rotating electric machine and electric wheelchair |
| JP2007028853A (en) * | 2005-07-20 | 2007-02-01 | Yamaha Motor Co Ltd | Rotary electric machine and electric wheelchair |
| US7528521B2 (en) | 2005-07-20 | 2009-05-05 | Yamaha Hatsudoki Kabushiki Kaisha | Rotary electric machine and electric wheelchair mounted with rotary electric machine |
| US7592733B2 (en) | 2005-07-20 | 2009-09-22 | Yamaha Hatsudoki Kabushiki Kaisha | Rotary electric machine and electric wheelchair mounted with rotary electric machine |
| US7642686B2 (en) | 2005-07-20 | 2010-01-05 | Yamaha Hatsudoki Kabushiki Kaisha | Rotary electric machine and electric wheelchair mounted with rotary electric machine |
| JP2007209186A (en) * | 2006-02-06 | 2007-08-16 | Mitsubishi Electric Corp | Synchronous motor and manufacturing method therefor |
| WO2008105049A1 (en) * | 2007-02-26 | 2008-09-04 | Mitsubishi Electric Corporation | Permanent magnet motor, hermetic compressor, and fan motor |
| JP4838348B2 (en) * | 2007-02-26 | 2011-12-14 | 三菱電機株式会社 | Permanent magnet motor, hermetic compressor and fan motor |
| US8714948B2 (en) | 2007-02-26 | 2014-05-06 | Mitsubishi Electric Corporation | Permanent magnet motor, hermetic compressor, and fan motor |
| US20110018384A1 (en) * | 2008-03-26 | 2011-01-27 | Nidec Corporation | Motor |
| WO2015194216A1 (en) * | 2014-06-19 | 2015-12-23 | 日本電産株式会社 | Motor |
| CN106464112A (en) * | 2014-06-19 | 2017-02-22 | 日本电产株式会社 | Motor |
| JPWO2015194216A1 (en) * | 2014-06-19 | 2017-07-06 | 日本電産株式会社 | motor |
| CN106464112B (en) * | 2014-06-19 | 2019-03-26 | 日本电产株式会社 | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0219695B2 (en) | 1990-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5510662A (en) | Permanent magnet motor | |
| JPS60152240A (en) | Rotary electric machine | |
| JP2000041367A (en) | Hybrid excitation type synchronous machine | |
| JPS61254054A (en) | Motor | |
| JP2000116084A (en) | Permanent magnet reluctance rotating electric machine | |
| JPH01122353A (en) | Synchronous ac servomotor | |
| JPH09117081A (en) | Rotor for permanent magnet synchronous motor | |
| JPH03243155A (en) | Revolving armature | |
| JPH034133Y2 (en) | ||
| JP2598770Y2 (en) | Rotating electric machine | |
| JP2564801B2 (en) | Rotating electric machine | |
| JP2002291216A (en) | Single pole rotation electric machine | |
| JPH0691715B2 (en) | Rotating electric machine | |
| JPH07212994A (en) | Permanent-magnet motor | |
| JPS61263206A (en) | Magnetizing method | |
| JPH1028356A (en) | Magnetizing method for magnetic stator in rotating machine | |
| JPH0548064B2 (en) | ||
| JPS63161853A (en) | Magnet for permanent magnet type synchronous motor | |
| JPH07322537A (en) | Rotor for salient pole rotating machine | |
| JPH028519Y2 (en) | ||
| WO2023105551A1 (en) | Rotating electric machine and aircraft provided with said rotating electric machine | |
| JPS6248246A (en) | Rotary machine of permanent magnet | |
| JPH0398449A (en) | Rotary electric machine | |
| JPH10178766A (en) | Magnetizing yoke | |
| JPH0638412A (en) | Permanent magnetic type brushless rotating electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |