JP2009148019A - Permanent magnet type rotating electric machine - Google Patents

Permanent magnet type rotating electric machine Download PDF

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JP2009148019A
JP2009148019A JP2007320483A JP2007320483A JP2009148019A JP 2009148019 A JP2009148019 A JP 2009148019A JP 2007320483 A JP2007320483 A JP 2007320483A JP 2007320483 A JP2007320483 A JP 2007320483A JP 2009148019 A JP2009148019 A JP 2009148019A
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magnet
permanent magnet
outer rotor
magnet case
peripheral surface
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JP5225666B2 (en
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Masakazu Kawagishi
雅和 川岸
Shigeru Moriyama
茂 森山
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Mitsuba Corp
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Mitsuba Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a permanent magnet type rotating electric machine in which a magnet case 6 for attaching a permanent magnet 5 on the inner circumference of a yoke 4 is attached in a turn preventing manner without forming a through-hole or a protrusion on the bottom surface of the yoke. <P>SOLUTION: Ribs 6b having a diameter larger than the inner diameter of a magnet incorporating portion 4d of the yoke 4, a mount shape with a ridge line facing in an axial direction, a slope in which a base end of a fitting direction is high and a distal end is low are formed on the outer circumferential surface of the magnet case 6. The magnet case is incorporated so that the tip of the magnet case may abut on a step difference portion 4e formed for forming the magnet incorporating portion 4d in a state of crushing the ribs 6b, and thus, the turn preventing is made, and the permanent magnet 5 is attached so as to be positioned in an axial core direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、自動二輪車やバギー車のように小型車両に搭載される永久磁石を用いて構成される永久磁石型の回転電機の技術分野に属するものである。   The present invention belongs to the technical field of a permanent magnet type rotating electrical machine configured by using a permanent magnet mounted on a small vehicle such as a motorcycle or a buggy.

一般に、この種の永久磁石型の回転電機は、フェライト磁石のような永久磁石を、有底円筒状をしたヨーク内周面に周回り方向所定の間隔を存して設けてアウタロータ（回転子）と、該アウタロータと同心状に設けられ、コイルが巻装されたティース部（突極）を放射方向に突出して設けたステータコア（固定子）とを用い、エンジン駆動に基づいてアウタロータを回転させることでコイルに起電力を誘起して発電する一方、エンジン始動時にはコイルに電流印加をすることでアウタロータを強制回転させてエンジン駆動をするようにしている。
このような永久磁石型の回転電機において、永久磁石は、磁石ケースを用いてヨーク内周面に取付けられることになるが、該磁石ケースは、ヨーク底面に形成した突起を磁石ケースに形成した貫通孔に貫通させることで回り止め状に組込む構成になっていた（例えば特許文献１参照）。また逆に、ヨーク底面に貫通孔を穿設し、該貫通孔に磁石ケースに設けた突起を貫通させることで回り止め状に組込むものもあった。
特開平９−１６３６５１号公報 In general, this type of permanent magnet type rotating electrical machine has an outer rotor (rotor) in which a permanent magnet such as a ferrite magnet is provided on the inner peripheral surface of a bottomed cylindrical yoke at a predetermined interval in the circumferential direction. And a stator core (stator) provided concentrically with the outer rotor and provided with a tooth portion (a salient pole) around which a coil is wound in a radial direction, and rotating the outer rotor based on engine driving Thus, while generating electric power by inducing an electromotive force in the coil, the engine is driven by forcibly rotating the outer rotor by applying a current to the coil when the engine is started.
In such a permanent magnet type rotating electrical machine, the permanent magnet is attached to the inner peripheral surface of the yoke using a magnet case. The magnet case has a through-hole formed on the magnet case with a protrusion formed on the bottom surface of the yoke. It was configured to be incorporated in a detent shape by penetrating through the hole (for example, see Patent Document 1). On the other hand, there is a case in which a through hole is formed in the bottom surface of the yoke, and a protrusion provided on the magnet case is passed through the through hole so as to be assembled in a non-rotating shape.
JP-A-9-163651

ところが前記従来のものは、ヨーク底面に突起または貫通孔を穿設して回り止めする必要があるため、これらの加工が必要になって作業性が悪いという問題がある。
しかも近年、製品の多様化に伴い永久磁石型の回転電機（一般に、発電機、始動モータとして利用されるためＡＣＧモータとも呼ばれている）についてみたとき、取付けられる永久磁石についてフェライト磁石だけでなく希土類磁石のように高磁力のものが採用されることもあり、しかも要求されるヨーク形状も種々のものがあり、これらが要因になって永久磁石のヨークに対する軸芯方向の取付け位置が種々異なったものになり、この結果、突起を貫通孔に貫通して回り止め状に組込むものである場合、永久磁石の取付け位置が異なるごとに対応した磁石ケースをいちいち作成する必要があるうえ、細かい部品管理も必要になって面倒かつ煩雑であるという問題があり、ここに本発明の解決すべき課題がある。 However, the conventional device has a problem in that workability is poor because it is necessary to form a protrusion or a through-hole on the bottom surface of the yoke to prevent rotation, and these processes are required.
Moreover, in recent years, with the diversification of products, permanent magnet type rotating electrical machines (generally also called ACG motors because they are used as generators and starter motors), not only ferrite magnets but also permanent magnets to be installed. There are cases where high magnetic force such as rare earth magnets are used, and there are various types of yokes required. Due to these factors, the mounting positions of the permanent magnets in the axial direction with respect to the yoke are different. As a result, if the protrusion is inserted into the through-hole and assembled in a non-rotating shape, it is necessary to create a magnet case corresponding to each mounting position of the permanent magnet, and fine parts management. There is a problem that it is necessary and troublesome and complicated, and here is a problem to be solved by the present invention.

本発明は、上記の如き実情に鑑みこれらの課題を解決することを目的として創作されたものであって、請求項１の発明は、回転自在に設定され、内周面に交互に異極となる永久磁石が周回り方向に間隙を存して設けられる有底円筒状のアウタロータと、該アウタロータに内装され、外周に複数のティースが形成されたコア材にコイルを巻装したステータコアとを備えて構成される永久磁石型の回転電機において、前記永久磁石をアウタロータ内周面に組付けるため該アウタロータの内周面に磁石ケースを内嵌状に嵌め込んで組込みをするにあたり、該磁石ケースの外周面には、アウタロータの磁石ケース組込み部位の内径よりも大径になっていて、磁石ケースをアウタロータに組込んだとき潰れて磁石ケースの回り止めをするためのリブが突出形成されていることを特徴とする永久磁石型の回転電機である。
請求項２の発明は、リブは、軸心方向に稜線が向いた山形形状で、かつ嵌め込み方向基端側が高く、先端側が低い傾斜状になっていることを特徴とする請求項１記載の永久磁石型の回転電機である。
請求項３の発明は、アウタロータの内周面には、内径が段差部を介して大径状になった磁石取付け部が形成され、磁石ケースは、先端を前記段差部に突き当てることで軸芯方向の位置決めがなされることを特徴とする請求項１または２記載の永久磁石型の回転電機である。 The present invention has been created in view of the above-described circumstances and has been created for the purpose of solving these problems. The invention of claim 1 is set so as to be freely rotatable and has different polarities alternately on the inner peripheral surface. A bottomed cylindrical outer rotor provided with a gap in the circumferential direction, and a stator core in which a coil is wound around a core material provided in the outer rotor and having a plurality of teeth formed on the outer periphery. In the permanent magnet type rotating electrical machine configured as described above, in order to assemble the permanent magnet on the inner peripheral surface of the outer rotor, the magnet case is fitted into the inner peripheral surface of the outer rotor so as to be assembled. The outer peripheral surface has a larger diameter than the inner diameter of the outer rotor magnet case installation portion, and a rib for preventing the magnet case from rotating and collapsing when the magnet case is installed in the outer rotor. It is a rotating electric machine of a permanent magnet type, characterized in being formed.
According to a second aspect of the present invention, the rib has a mountain shape with a ridge line facing in the axial direction, and has a slanted shape in which the proximal end side in the fitting direction is high and the distal end side is low. This is a magnet-type rotating electrical machine.
According to a third aspect of the present invention, a magnet mounting portion having an inner diameter that is increased in diameter via a stepped portion is formed on the inner peripheral surface of the outer rotor, and the magnet case is pivoted by abutting the tip to the stepped portion. 3. The permanent magnet type rotating electrical machine according to claim 1, wherein positioning in the core direction is performed.

請求項１の発明とすることにより、永久磁石を磁石ケースを用いて組付けるものでありながら、該磁石ケースの回り止めを、磁石ケースをアウタロータに嵌め込んだとき磁石ケース外周面に形成したリブが潰れることでなされることになって、アウタロータの底面部に貫通孔や突起を形成しないでもよいものになる。
請求項２の発明とすることにより、リブが先端側ほど低い傾斜状になっていることにより、リブの嵌め込みおよび潰し作業が容易になることになる。
請求項３の発明とすることにより、アウタロータの磁石取付け部が同径であれば、段差部の軸芯方向の位置を調整することで永久磁石のアウタロータに対する軸芯方向の取付け位置を自由に設定できることになって、磁石ケースの兼用化が図れることになる。 According to the first aspect of the present invention, a rib formed on the outer peripheral surface of the magnet case when the magnet case is fitted to the outer rotor, while the permanent magnet is assembled using the magnet case. As a result, the through-holes and protrusions may not be formed on the bottom surface of the outer rotor.
According to the invention of claim 2, the rib is inclined so as to be lower toward the tip side, so that the fitting and crushing work of the rib is facilitated.
According to the invention of claim 3, if the magnet mounting portion of the outer rotor has the same diameter, the mounting position of the permanent magnet in the axial direction with respect to the outer rotor can be freely set by adjusting the position of the step portion in the axial core direction. As a result, the magnet case can be shared.

次ぎに、本発明の実施の形態について、図面に基づいて説明する。図中、１は永久磁石型の回転電機であって、該回転電機１は、有底円筒状をしたアウタロータ２と、該アウタロータ２の内周に該アウタロータ２と同心状に設けられるステータコア３とを用いて構成されるが、前記アウタロータ２を構成すべく、軸芯方向一端側が開口した有底円筒状のヨーク４の底部４ａには、中心部に位置して筒内側方に突出するボス部４ｂが形成され、該ボス部４ｂが図示しないエンジン側の出力軸に連結され、そして始動モータとして使用するときにはステータコア３に通電されて後述するコイルが励磁されることに基づいてアウタロータ２の強制回転がなされ、これによってエンジンが始動回転される一方、発電機として使用するときにはエンジン側の駆動回転によってアウタロータ４が従動回転し、これによってステータコア３に設けたコイルが電磁誘導され、これによって発電するようになっている。   Next, embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a permanent magnet type rotating electric machine, which comprises an outer rotor 2 having a bottomed cylindrical shape, and a stator core 3 provided concentrically with the outer rotor 2 on the inner periphery of the outer rotor 2. In order to form the outer rotor 2, the bottom 4a of the bottomed cylindrical yoke 4 opened at one end in the axial direction is a boss that is located at the center and protrudes inward of the cylinder 4b is formed, the boss portion 4b is connected to an output shaft on the engine side (not shown), and when used as a starter motor, the stator core 3 is energized to energize a coil, which will be described later, to forcibly rotate the outer rotor 2 As a result, the engine is started and rotated. On the other hand, when used as a generator, the outer rotor 4 is driven and rotated by the driving rotation on the engine side. Coils provided on the stator core 3 is electromagnetically induced, so as to generate electricity thereby.

前記ヨーク４の内周面部４ｃには永久磁石５の複数が周回り方向に所定間隔を存して組み付けられるが、そのため該内周面部４ｃは、内周面開口側半部の内径が底面側半部の内径に対して大径となるよう例えば切削による加工が施されており、これによってヨーク内周面部４ｃは、開口側に磁石取付け部４ｄが形成され、その筒奥側（筒底側）に内径が小径となる状態の段差部４ｅが形成された構成になっている。そして磁石取付け部４ｄには、後述する磁石ケース６を介して永久磁石６が取付けられ、該取付けられた永久磁石５の内周面を磁石カバー７で覆蓋する構成になっている。
因みに、該磁石カバー７の開口側端部は外径方向に折曲したフランジ部７ａが形成され、該フランジ部７ａをヨーク開口端に形成の大径となる段差部４ｆに当てがった状態で肉薄になった外径部４ｇを内側にカシメることで磁石カバー７はヨーク４に取付け固定されるようになっている。 A plurality of permanent magnets 5 are assembled to the inner peripheral surface portion 4c of the yoke 4 at predetermined intervals in the circumferential direction. Therefore, the inner peripheral surface portion 4c has an inner diameter on the bottom side on the inner peripheral surface opening side half portion. For example, machining by cutting is performed so that the inner diameter of the half portion is larger than the inner diameter of the half portion. As a result, a magnet mounting portion 4d is formed on the opening side of the yoke inner peripheral surface portion 4c. ) Is formed with a stepped portion 4e having a small inner diameter. The permanent magnet 6 is attached to the magnet attaching portion 4d via a magnet case 6 described later, and the inner peripheral surface of the attached permanent magnet 5 is covered with a magnet cover 7.
By the way, the opening side end of the magnet cover 7 is formed with a flange portion 7a bent in the outer diameter direction, and the flange portion 7a is applied to the stepped portion 4f having a large diameter formed at the yoke opening end. The magnet cover 7 is attached and fixed to the yoke 4 by caulking the thinned outer diameter portion 4g inward.

一方、前記ステータコア３は、ヨーク４と同心になる状態で、前記ボス部４ｂの外径よりも大径になるコア部３ａが形成され、該コア部３ａから周回り方向所定角度を存してティース３ｂが突出し、該ティース部３ｂにコイル９が巻装されたものであり、ティース部３ｂの外周面が磁石カバー７に隙間（ギャップ）を存して対向するようになっている。
そしてエンジン駆動によりアウタロータ２が強制回転した場合に、コイル９に起電力を誘起して発電する一方、エンジン始動時にはコイル９に電流印加をすることでアウタロータ２を強制回転させてエンジン駆動をするようになっている。尚、ヨーク４の外周面には、回転状態（位置）を、図示しない検知センサで検知するための突起４ｈが形成されている。 On the other hand, the stator core 3 is formed with a core portion 3a having a diameter larger than the outer diameter of the boss portion 4b in a state of being concentric with the yoke 4, and has a predetermined circumferential direction angle from the core portion 3a. The tooth 3b protrudes and the coil 9 is wound around the tooth portion 3b. The outer peripheral surface of the tooth portion 3b faces the magnet cover 7 with a gap (gap) therebetween.
When the outer rotor 2 is forcibly rotated by driving the engine, an electromotive force is induced in the coil 9 to generate power, and when the engine is started, the outer rotor 2 is forcibly rotated to drive the engine by applying a current to the coil 9. It has become. On the outer peripheral surface of the yoke 4, a protrusion 4h is formed for detecting the rotation state (position) with a detection sensor (not shown).

前記磁石ケース６は円環状をした樹脂材からなり、外周部を磁石取付け部４ｄに内嵌することでヨーク４に組込まれるが、その外径は、磁石取付け部４ｄの内径よりも僅かではあるが小径になっていて磁石取付け部４ｄに遊嵌できることになるが、外周面６ａには、周回り方向所定間隔を存して磁石ケース６の回り止めをするためのリブ６ｂが突出形成されている。該リブ６ｂは、稜線が軸心方向を向いた山形形状、つまり軸芯方向から見たときに山形形状になっているが、磁石ケース６の磁石取付け部４ｄへの嵌め込み方向先側ほど稜線が低くなる傾斜形状になり、嵌め込み方向基端６ｃでは磁石取付け部４ｄの内径よりも大径で、嵌め込み方向先端６ｄでは外周面６ａと面一状になっている。そして磁石ケース６をヨーク４に嵌め込んだ場合に、嵌め込み先端６ｄを段差部４ｅに突き当てることで軸心方向に位置決めがなされ、また前記リブ６ｂが磁石取付け部４ｄによって潰された状態となって該磁石取付け部４ｄに圧接し、該圧接による抵抗によって磁石ケース６のヨークに対する回り止めがなされるようになっている。   The magnet case 6 is made of an annular resin material, and the outer peripheral portion is fitted into the magnet mounting portion 4d so as to be incorporated in the yoke 4, but the outer diameter thereof is slightly smaller than the inner diameter of the magnet mounting portion 4d. Has a small diameter and can be loosely fitted to the magnet mounting portion 4d. On the outer peripheral surface 6a, ribs 6b for preventing rotation of the magnet case 6 with a predetermined interval in the circumferential direction are formed. Yes. The rib 6b has a chevron shape in which the ridge line is directed in the axial direction, that is, a chevron shape when viewed from the axial direction, but the ridge line is closer to the front side of the magnet case 6 in the magnet mounting portion 4d. The lower end of the fitting direction base end 6c is larger in diameter than the inner diameter of the magnet mounting portion 4d, and the end 6d in the fitting direction is flush with the outer peripheral surface 6a. When the magnet case 6 is fitted into the yoke 4, the fitting tip 6d is abutted against the stepped portion 4e for positioning in the axial direction, and the rib 6b is crushed by the magnet mounting portion 4d. The magnet case 6d is pressed against the yoke, and the rotation of the magnet case 6 with respect to the yoke is prevented by the resistance caused by the pressure contact.

叙述のごとく構成された本発明の実施の形態において、永久磁石５を磁石ケース６を介してヨーク４内周面に形成される磁石取付け部４ｄに組付けるにあたり、磁石ケース６の外周面６ａに、磁石取付け部４ｄの内径よりも大径になったリブ６ｂが設けられ、該リブ６ｂを押しつぶす状態で磁石ケース６がヨーク内周面に嵌め込まれる結果、押し潰されたリブ６ｂが磁石取付け部４ｄの内周面に圧接することになって回り止めがなされ、これによって従来のようにヨーク底面部４ａに回り止め用の貫通孔や突起を形成するような面倒かつ煩雑な工程が必要ないことになって、作業性の向上が図れる。   In the embodiment of the present invention configured as described above, the permanent magnet 5 is attached to the outer peripheral surface 6 a of the magnet case 6 when the permanent magnet 5 is assembled to the magnet mounting portion 4 d formed on the inner peripheral surface of the yoke 4 via the magnet case 6. The rib 6b having a diameter larger than the inner diameter of the magnet mounting portion 4d is provided, and the magnet case 6 is fitted into the inner peripheral surface of the yoke while the rib 6b is crushed. As a result, the crushed rib 6b becomes the magnet mounting portion. It is pressed against the inner peripheral surface of 4d and is prevented from rotating, thereby eliminating the troublesome and complicated process of forming a through hole or protrusion for preventing rotation on the yoke bottom surface portion 4a as in the prior art. Thus, workability can be improved.

しかもこのものでは、リブ６ｂは、軸心方向に稜線が向いた山形形状をし、かつ嵌め込み方向基端側が高く、先端側が低い傾斜状になっていて、磁石取付け部４ｄへの嵌め込みがしやすいものとなっており、この結果、リブ６ｂを押し潰して嵌め込むものでありながら、はめ込み作業が容易になって作業性を損なうことも回避される。   In addition, in this structure, the rib 6b has a mountain shape with the ridge line facing in the axial direction, is inclined in the fitting direction at the base end side, and the tip end side is low, and is easy to fit into the magnet mounting portion 4d. As a result, although the rib 6b is crushed and fitted, it is possible to prevent the workability from being impaired by facilitating the fitting work.

またヨーク４の内周面４ｃには、内径が段差部４ｅを介して大径状になった磁石取付け部４ｄが形成され、磁石ケース６は、先端を前記段差部４ｅに突き当てるようにして組み込むことで軸芯方向の位置決めがなされることになり、この結果、ヨーク４の磁石取付け部４ｄの内径が同径であれば、段差部４ｅの軸芯方向の位置を調整することで永久磁石５のヨーク４に対する軸芯方向の取付け位置を自由に設定できることになって、磁石５の取付け位置が違う毎に異なった磁石ケースを用意する必要がなく、磁石ケースの兼用化が図れることになる。   The yoke 4 has an inner peripheral surface 4c formed with a magnet mounting portion 4d whose inner diameter is increased through a stepped portion 4e, and the magnet case 6 has a tip abutted against the stepped portion 4e. As a result, if the inner diameter of the magnet mounting portion 4d of the yoke 4 is the same, the permanent magnet can be adjusted by adjusting the position of the stepped portion 4e in the axial direction. 5 can be freely set in the axial direction with respect to the yoke 4, so that it is not necessary to prepare a different magnet case every time the magnet 5 is attached, and the magnet case can be shared. .

回転電機の正面図である。It is a front view of a rotary electric machine. 回転電機の断面側面図である。It is a cross-sectional side view of a rotary electric machine. （Ａ）は磁石ケースの正面図、（Ｂ）は磁石ケースの一部切欠き側面図である。(A) is a front view of a magnet case, (B) is a partially cutaway side view of a magnet case. （Ａ）はヨークの一部断面側面図、（Ｂ）は磁石カバーに一部断面側面図である。(A) is a partial cross-sectional side view of the yoke, and (B) is a partial cross-sectional side view of the magnet cover. （Ａ）は磁石ケースをヨークに嵌め込む前の状態を示す一部断面側面図、（Ｂ）は磁石ケースをヨークに嵌め込んだ状態を示す一部断面側面図である。(A) is a partial cross-sectional side view showing a state before the magnet case is fitted into the yoke, and (B) is a partial cross-sectional side view showing a state where the magnet case is fitted into the yoke. （Ａ）は磁石ケースをヨークに嵌め込む前の状態を示す要部拡大正面図、（Ｂ）は磁石ケースをヨークに嵌め込んだ状態を示す要部拡大正面図である。(A) is a principal part enlarged front view which shows the state before fitting a magnet case in a yoke, (B) is a principal part enlarged front view which shows the state which fitted the magnet case in the yoke.

符号の説明Explanation of symbols

１ 回転電機
２ アウタロータ
３ ステータコア
４ ヨーク
４ｄ 磁石取付け部
４ｅ 段差部
５ 永久磁石
６ 磁石ケース
６ａ 外周面
６ｂ リブ DESCRIPTION OF SYMBOLS 1 Rotating electrical machine 2 Outer rotor 3 Stator core 4 Yoke 4d Magnet attachment part 4e Step part 5 Permanent magnet 6 Magnet case 6a Outer surface 6b Rib

Claims (3)

回転自在に設定され、内周面に交互に異極となる永久磁石が周回り方向に間隙を存して設けられる有底円筒状のアウタロータと、該アウタロータに内装され、外周に複数のティースが形成されたコア材にコイルを巻装したステータコアとを備えて構成される永久磁石型の回転電機において、
前記永久磁石をアウタロータ内周面に組付けるため該アウタロータの内周面に磁石ケースを内嵌状に嵌め込んで組込みをするにあたり、
該磁石ケースの外周面には、アウタロータの磁石ケース組込み部位の内径よりも大径になっていて、磁石ケースをアウタロータに組込んだとき潰れて磁石ケースの回り止めをするためのリブが突出形成されていることを特徴とする永久磁石型の回転電機。 A bottomed cylindrical outer rotor in which permanent magnets, which are set to be rotatable and alternately have different polarities on the inner peripheral surface, are provided with a gap in the circumferential direction, and are provided in the outer rotor, and a plurality of teeth are provided on the outer periphery. In a permanent magnet type rotating electrical machine configured to include a stator core in which a coil is wound around a formed core material,
In order to assemble the permanent magnet on the inner peripheral surface of the outer rotor, a magnet case is fitted into the inner peripheral surface of the outer rotor so as to be incorporated,
The outer circumference of the magnet case is larger in diameter than the inner diameter of the outer rotor magnet case assembly portion, and a rib is formed to protrude when the magnet case is collapsed to prevent rotation of the magnet case. A permanent magnet type rotating electrical machine characterized by being made. リブは、軸心方向に稜線が向いた山形形状で、かつ嵌め込み方向基端側が高く、先端側が低い傾斜状になっていることを特徴とする請求項１記載の永久磁石型の回転電機。   2. The permanent magnet type rotating electric machine according to claim 1, wherein the rib has a mountain shape with a ridge line facing in the axial direction, and has a slanted shape in which the proximal end side in the fitting direction is high and the distal end side is low. アウタロータの内周面には、内径が段差部を介して大径状になった磁石取付け部が形成され、磁石ケースは、先端を前記段差部に突き当てることで軸芯方向の位置決めがなされることを特徴とする請求項１または２記載の永久磁石型の回転電機。   On the inner peripheral surface of the outer rotor, a magnet mounting portion whose inner diameter becomes a large diameter through a step portion is formed, and the magnet case is positioned in the axial direction by abutting the tip against the step portion. The permanent magnet type rotating electric machine according to claim 1 or 2, wherein
JP2007320483A 2007-12-12 2007-12-12 Permanent magnet type rotating electric machine Active JP5225666B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20121592A1 (en) * 2012-09-25 2014-03-26 Mavel Srl METHOD FOR MANUFACTURING A ROTOR FOR ELECTRIC MOTORS AND ITS ROTOR
CN109494956A (en) * 2019-01-08 2019-03-19 田振荣 Brushless mixed Magnetic driving generator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63114550A (en) * 1986-10-29 1988-05-19 Tdk Corp Rotor magnet and manufacture thereof
JPH01150470U (en) * 1988-04-07 1989-10-18
JP2003125570A (en) * 2001-10-10 2003-04-25 Mitsuba Corp Dynamo-electric machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63114550A (en) * 1986-10-29 1988-05-19 Tdk Corp Rotor magnet and manufacture thereof
JPH01150470U (en) * 1988-04-07 1989-10-18
JP2003125570A (en) * 2001-10-10 2003-04-25 Mitsuba Corp Dynamo-electric machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20121592A1 (en) * 2012-09-25 2014-03-26 Mavel Srl METHOD FOR MANUFACTURING A ROTOR FOR ELECTRIC MOTORS AND ITS ROTOR
EP2712061A3 (en) * 2012-09-25 2015-03-04 Mavel S.r.l. Method of manufacturing a rotor for electric motors and associated rotor
US9641030B2 (en) 2012-09-25 2017-05-02 Ifp Energies Nouvelle3 Methods of manufacturing rotors having interfering sintered magnets and carbon filament sheaths for electric motors
CN109494956A (en) * 2019-01-08 2019-03-19 田振荣 Brushless mixed Magnetic driving generator

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