JP3003748B2 - Method for manufacturing rotor of magnet generator - Google Patents
Method for manufacturing rotor of magnet generatorInfo
- Publication number
- JP3003748B2 JP3003748B2 JP5152905A JP15290593A JP3003748B2 JP 3003748 B2 JP3003748 B2 JP 3003748B2 JP 5152905 A JP5152905 A JP 5152905A JP 15290593 A JP15290593 A JP 15290593A JP 3003748 B2 JP3003748 B2 JP 3003748B2
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- fitting portion
- length
- bottom wall
- boss member
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- 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
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2791—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、磁石発電機の回転子の
製造方法に関し、特に、ヨークとボス部材との結合構造
の改良に係り、例えば、オートバイのような小型車両、
船外機、携帯発電機等に使用される磁石発電機における
回転子の製造に利用して有効な方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a rotor of a magnet generator, and more particularly to an improvement in a coupling structure between a yoke and a boss member.
The present invention relates to a method effective for manufacturing a rotor in a magnet generator used for an outboard motor, a portable generator, and the like.
【０００２】[0002]
【従来の技術】一般に、磁石発電機として、略椀形状の
ヨークの内周面に複数のマグネットを等間隔に配設され
てなる回転子と、複数のコイルユニット（コアにコイル
を巻装されて構成されている。）が回転子のヨークの内
部において等間隔に配されてなる発電子とを備え、発電
子がエンジンの外郭等に固定され、回転子がエンジンの
回転軸に嵌着されて構成されているものがある。この磁
石発電機においては、回転子がエンジンに駆動される回
転軸の回転により発電子の周囲を旋回されて回転子のマ
グネットの磁界内を相対的に移動することにより、発電
子の各磁極コイルにおいて起電力が誘起されることにな
る。2. Description of the Related Art Generally, as a magnet generator, a rotor having a plurality of magnets arranged at equal intervals on an inner peripheral surface of a substantially bowl-shaped yoke, and a plurality of coil units (a coil wound around a core) are provided. Are formed at equal intervals inside the yoke of the rotor. The generated electrons are fixed to the outer shell of the engine, and the rotor is fitted to the rotating shaft of the engine. Some are configured. In this magnet generator, each rotor magnetic pole coil is generated by rotating a rotor around an electromotive force by rotation of a rotating shaft driven by the engine and relatively moving within a magnetic field of a magnet of the rotor. , An electromotive force is induced.
【０００３】このような磁石発電機に使用される回転子
として、外周にフランジを有する略円筒形状に形成され
円筒形状の外周の一部に雄セレーションが形成されてい
るボス部材と、略椀形状に形成されその底壁に開設され
た開口の周囲に略円筒形状の嵌合部が形成されていると
ともに、嵌合部の内周に雌セレーションが形成されてい
るヨークとを備えており、ボス部材がヨークの嵌合部に
互いのセレーションを結合されて嵌合されているととも
に、ボス部材の先端部が座屈かしめ加工されてヨークに
固定されているもの、がある。[0003] A rotor used in such a magnet generator includes a boss member formed in a substantially cylindrical shape having a flange on the outer periphery and a male serration formed on a part of the outer periphery of the cylindrical shape, and a substantially bowl-shaped member. A substantially cylindrical fitting portion is formed around an opening formed in the bottom wall thereof, and a yoke in which female serrations are formed on the inner periphery of the fitting portion. In some cases, the members are fitted to the fitting portion of the yoke with their serrations connected to each other, and the tip of the boss member is buckled and fixed to the yoke.
【０００４】また、特開昭６２−１６３５４９号公報に
記載されているように、ヨークに曲げ加工を施すととも
に、ヨークとボス部材とをセレーション結合する代わり
に、ヨーク底壁にリベット孔を開設するとともに、ボス
部材のフランジにリベット孔を開設し、ボス部材をヨー
クの底壁にリベットによって固定するようにした磁石発
電機の回転子の製造方法が、広く採用されている。As described in Japanese Patent Application Laid-Open No. 62-163549, a yoke is bent and a rivet hole is formed in a bottom wall of the yoke instead of serration-connecting the yoke and the boss member. At the same time, a method of manufacturing a rotor of a magnet generator in which a rivet hole is formed in a flange of a boss member and the boss member is fixed to a bottom wall of the yoke by a rivet has been widely used.
【０００５】[0005]
【発明が解決しようとする課題】しかし、ボス部材とヨ
ークとをセレーション結合する磁石発電機の回転子の製
造方法においては、結合強度を高めるためにヨークのセ
レーションの有効長を長く設定すると、ヨークの嵌合部
が長くなる。そして、ヨークの嵌合部が長くなると、ス
テータコイルとの干渉を避けるために、ヨークの軸方向
の余裕が長くなり、ヨーク内部に無駄なスペースが形成
されることになる。However, in the method of manufacturing a rotor of a magnet generator in which the boss member and the yoke are serrated and connected, if the effective length of the serration of the yoke is set to be long in order to increase the strength of the yoke, Becomes longer. When the fitting portion of the yoke becomes longer, the margin of the yoke in the axial direction becomes longer in order to avoid interference with the stator coil, and a useless space is formed inside the yoke.
【０００６】また、リベットを用いてボス部材をヨーク
に固定する磁石発電機の回転子の製造方法においては、
リベット孔を開設したり、リベットをかしめ加工したり
するための作業が必要となり、製造コストが高くなる。In a method of manufacturing a rotor of a magnet generator in which a boss member is fixed to a yoke using rivets,
An operation for opening a rivet hole or caulking a rivet is required, which increases the manufacturing cost.
【０００７】本発明の目的は、ヨークとボス部材とをセ
レーション結合してもステータコイルとの干渉限界を低
く設定することができる磁石発電機の回転子の製造方法
を提供することにある。An object of the present invention is to provide a method of manufacturing a rotor of a magnet generator, which can set a low interference limit with a stator coil even when a yoke and a boss member are serrated and connected.
【０００８】[0008]
【課題を解決するための手段】本発明に係る磁石発電機
の回転子の製造方法は、外周にフランジを有する略円筒
形状に形成されその円筒形状の外周の一部に雄セレーシ
ョンが形成されているボス部材と、略椀形状に形成され
その底壁に開設された開口の周囲に略円筒形状の嵌合部
が形成されているとともに、嵌合部の内周に雌セレーシ
ョンが形成されているヨークとを備えており、ボス部材
がヨークの嵌合部に互いのセレーションを結合されて嵌
合されているとともに、ボス部材の先端部が座屈かしめ
加工されてヨークに固定されている磁石発電機の回転子
であって、コイルユニットの端面がヨークの底壁に対向
されて発電子が内部に挿入される磁石発電機の回転子の
製造方法において、前記ヨーク底壁の中央部に前記ボス
部材を挿通するための前記開口が開設される工程と、前
記ヨーク底壁における前記開口の周辺部がヨークの軸方
向内向きに突出するように曲げ加工されて、軸方向全長
（Ｌ １ ）が弯曲部の凸状弯曲面の軸方向長さ（Ｒ １ ）と
平坦面長さ（Ｓ １ ）との和である内周面を有する前記嵌
合部が形成される工程と、前記工程で形成された嵌合部
がヨークの軸方向外向きに押し戻し塑性変形されて、嵌
合部のヨーク底壁外側端面から開口端面までの軸方向の
長さが短縮され、塑性変形された軸方向全長（Ｌ ２ ）か
ら凸状弯曲面の軸方向長さ（Ｒ ２ ）を減じた平坦面長さ
（Ｓ ２ ）が塑性変形前の前記平坦面長さ（Ｓ １ ）以上の
内周面を有する嵌合部が形成される工程と、前記塑性変
形後の嵌合部の内周面に前記雌セレーションが形成され
る工程と、を備えていることを特徴とする。According to a method of manufacturing a rotor of a magnet generator according to the present invention, a rotor is formed in a substantially cylindrical shape having a flange on an outer periphery, and a male serration is formed on a part of the outer periphery of the cylindrical shape. A substantially cylindrical fitting portion is formed around an opening formed in a substantially bowl shape and a bottom wall thereof, and a female serration is formed on an inner periphery of the fitting portion. And a yoke, wherein the boss member is fitted to the fitting portion of the yoke with the serrations thereof connected to each other, and the tip of the boss member is buckled and fixed to the yoke. Machine rotor
Wherein the end face of the coil unit faces the bottom wall of the yoke.
In the rotor manufacturing method of the magneto generator is inserted into the power generation element is a step of the opening for inserting the boss member in a central portion of the yoke bottom wall is opened, the yoke bottom wall The periphery of the opening at the axis of the yoke
Bending so that it protrudes inward and inward, and the entire length in the axial direction
(L 1 ) is the axial length (R 1 ) of the convex curved surface of the curved portion
Wherein the step of fitting portions are formed, the fitting portion is plastically deformed back pushed axially outward of a yoke formed by the step having an inner peripheral surface which is the sum of the flat surface length (S 1) Then, the axial length from the outer end face of the yoke bottom wall to the open end face of the fitting portion is shortened, and the total axial length (L 2 ) that is plastically deformed is reduced .
Flat surface length less the axial length (R 2 ) of the convex curved surface
(S 2 ) is equal to or longer than the flat surface length (S 1 ) before plastic deformation .
A step of fitting portion having an inner peripheral surface is formed, the plastic deformation
A step of the female serration on the inner peripheral surface of the fitting portion after the form is formed, characterized in that it comprises a.
【０００９】[0009]
【作用】前記した手段によれば、ヨーク底壁の開口周辺
部が曲げ加工によりヨーク内側へ突出されて略円筒形状
の嵌合部が形成された後、曲げ加工された嵌合部が押し
戻されるように塑性変形されて、軸方向の長さが短くさ
れる。そして、雌セレーションは短縮された嵌合部の内
周面に形成されるが、その軸方向の長さは減少せずに、
かえって増加するため、ヨークとボス部材とをセレーシ
ョン結合しても、セレーションの結合強度は充分に確保
することができる。According to the above-described means, after the periphery of the opening of the yoke bottom wall is projected into the yoke by bending to form a substantially cylindrical fitting portion, the bent fitting portion is pushed back. Plastic deformation, and the length in the axial direction is shortened. And the female serration is formed on the inner peripheral surface of the shortened fitting portion, but its axial length does not decrease,
On the contrary, even if the yoke and the boss member are serrated, the serration coupling strength can be sufficiently ensured.
【００１０】他方、ヨーク底壁から内側に突出された嵌
合部の軸方向長さ自体は短くなるため、その短くなった
分だけ、ヨークのステータコイルとの干渉限界は低く設
定されることになる。On the other hand, since the axial length itself of the fitting portion protruding inward from the bottom wall of the yoke is shortened, the interference limit of the yoke with respect to the stator coil is set lower by the shortened length. Become.
【００１１】[0011]
【実施例】図１（ａ）、（ｂ）、（ｃ）、（ｄ）は本発
明の一実施例である磁石発電機の回転子の製造方法にお
ける主要工程を示す各工程説明図である。図２はその製
造方法によって製造された磁石発電機の回転子を示す正
面断面図である。1 (a), 1 (b), 1 (c) and 1 (d) are explanatory diagrams showing main steps in a method of manufacturing a rotor of a magnet generator according to an embodiment of the present invention. . FIG. 2 is a front sectional view showing a rotor of the magnet generator manufactured by the manufacturing method.
【００１２】本実施例において、本発明に係る磁石発電
機の回転子の製造方法によって製造された回転子１０
は、回転軸（図示せず）が嵌着されるボス部材１１を備
えており、このボス部材１１は一端部外周上に円形環状
に形成されたフランジ１２を有する略円筒形状に形成さ
れている。このボス部材１１の筒中空部には、回転軸の
テーパ外周面と嵌合するテーパ内周面１３がフランジ１
２から離れる方向に向かって小径になるように形成され
ている。フランジ１２の外側端面には凹部１４が同心円
に形成されている。In this embodiment, a rotor 10 manufactured by the method for manufacturing a rotor of a magnet generator according to the present invention is used.
Has a boss member 11 to which a rotating shaft (not shown) is fitted. The boss member 11 is formed in a substantially cylindrical shape having a flange 12 formed in a circular ring shape on the outer periphery of one end. . A tapered inner peripheral surface 13 that fits with the tapered outer peripheral surface of the rotation shaft has a flange 1 in the hollow portion of the boss member 11.
It is formed so as to become smaller in diameter in a direction away from 2. A concave portion 14 is formed concentrically on the outer end surface of the flange 12.
【００１３】ボス部材１１の外周形状はフランジ１２側
の半分が大径部１５に、反対側の半分が小径部１６にそ
れぞれ形成されている。大径部１５の外周上には、後記
するヨーク側の雌セレーションに噛合する雄セレーショ
ン１８が全周および全長に渡って刻設されている。そし
て、大径部１５と小径部１６との境界には後記する座屈
かしめ加工による座屈かしめ加工部１７が形成されてい
る。The outer peripheral shape of the boss member 11 is such that a half on the flange 12 side is formed on the large diameter portion 15 and a half on the opposite side is formed on the small diameter portion 16. On the outer periphery of the large diameter portion 15, a male serration 18 meshing with a female serration on the yoke side described later is engraved over the entire circumference and the entire length. At the boundary between the large-diameter portion 15 and the small-diameter portion 16, a buckling crimping portion 17 is formed by buckling crimping described later.
【００１４】他方、この回転子１０は略真円椀形状に形
成されたヨーク２０を備えている。ヨーク２０の側壁２
１の内周面には複数個のマグネット２２が、マグネット
２２を収容した合成樹脂製のケース２３をヨーク２０内
に圧入した後に、巻きかしめ加工によって形成された巻
きかしめ部２４により、周方向の所定の位置に固定され
ている。On the other hand, the rotor 10 has a yoke 20 formed in a substantially round bowl shape. Side wall 2 of yoke 20
A plurality of magnets 22 are press-fitted into the yoke 20 on the inner peripheral surface of a synthetic resin case 23 accommodating the magnets 22, and then crimped by a crimping portion 24 formed by crimping. It is fixed at a predetermined position.
【００１５】このヨーク２０の底壁２５には開口２６
が、ボス部材１１の大径部１５の外形よりも若干小径の
直径を有する略円形に開設されており、この開口２６に
は嵌合部２７がヨーク２０の軸心方向内向きに突出する
ように形成されている。ここで、本発明の主な特徴であ
るこの嵌合部２７の製造方法について、図１を参照にし
て説明する。An opening 26 is formed in a bottom wall 25 of the yoke 20.
The opening 26 is formed in a substantially circular shape having a diameter slightly smaller than the outer diameter of the large diameter portion 15 of the boss member 11, and a fitting portion 27 projects inward in the axial direction of the yoke 20 through the opening 26. Is formed. Here, a method of manufacturing the fitting portion 27, which is a main feature of the present invention, will be described with reference to FIG.
【００１６】予め、図１（ａ）に示されているように、
ヨーク２０の底壁２５の中央部にボス部材挿通用の開口
２６が開設される。この後、ヨーク２０の底壁２５にお
ける開口２６の周辺部に曲げ加工としてのバーリング加
工が施され、図１（ｂ）に示されているように、開口２
６の周辺部がヨーク２０の軸方向内向きに突出されるこ
とにより、嵌合部２７が短尺の略円筒形状に形成され
る。As shown in FIG. 1A,
An opening 26 for inserting a boss member is formed at the center of the bottom wall 25 of the yoke 20. Thereafter, a burring process as a bending process is performed on a peripheral portion of the opening 26 in the bottom wall 25 of the yoke 20, and as shown in FIG.
The fitting portion 27 is formed in a short, substantially cylindrical shape by projecting the periphery of the yoke 20 inward in the axial direction of the yoke 20.
【００１７】この状態において、嵌合部２７と底壁２５
との接続部にはバーリング加工によって弯曲部２８が形
成された状態になっている。そして、この弯曲部２８は
バーリング加工によって形成されるため、この状態にお
ける弯曲部２８の肉厚ｔ1 は、ヨーク底壁２５の肉厚ｔ
0 と等しいか、または、薄くなっている。In this state, the fitting portion 27 and the bottom wall 25
A curved portion 28 is formed at the connection portion with the burring process. Since the curved portion 28 is formed by burring, the thickness t 1 of the curved portion 28 in this state is equal to the thickness t 1 of the yoke bottom wall 25.
Equal to 0 or thin.
【００１８】また、嵌合部２７の軸方向長さＬ1 は、全
長Ｌ1 から弯曲部２８の凸状弯曲面の軸方向長さＲ1 を
引いた内周面の平坦面長さＳ1 が、所期のセレーション
結合強度を確保するのに必要なセレーション有効長さＳ
0 と等しいか、または、長くなるように設定されてい
る。Further, the axial length L 1 of the fitting portion 27, the axial length of the flat surface length of the inner peripheral surface minus R 1 of the convex curved surface of the curved portion 28 from the full-length L 1 S 1 Is the serration effective length S required to secure the desired serration bond strength.
It is set to be equal to 0 or longer.
【００１９】この後、底壁２５の外側端面が平板上の治
具（図示せず）に固定された状態で、嵌合部２７がその
内側端面を軸心方向外側向きに押圧されて、図２（ｃ）
に示されているように、嵌合部２７の弯曲部２８が解消
されるように押し戻されて塑性変形される。Thereafter, with the outer end face of the bottom wall 25 fixed to a jig (not shown) on a flat plate, the fitting portion 27 is pressed against the inner end face outward in the axial direction. 2 (c)
As shown in (2), the fitting portion 27 is pushed back so as to eliminate the curved portion 28 and is plastically deformed.
【００２０】そして、嵌合部２７が押し戻されると、嵌
合部２７の軸心方向内側端面から底壁２５の外側端面ま
での距離Ｌ2 が、嵌合部２７の元の長さＬ1 よりも短く
なった状態になる。When the fitting portion 27 is pushed back, the distance L 2 from the axial inner end surface of the fitting portion 27 to the outer end surface of the bottom wall 25 is longer than the original length L 1 of the fitting portion 27. Is also shortened.
【００２１】しかし、嵌合部２７の内周面の軸方向の平
坦面長さＳ2 、すなわち、雌セレーションの有効長さＳ
0 は、元の長さＳ1 と等しいか、長くなる。However, the axial flat surface length S 2 of the inner peripheral surface of the fitting portion 27, that is, the effective length S of the female serrations
0 is equal to the original length S 1, it becomes longer.
【００２２】これは、嵌合部２７の距離Ｌ2 が元の長さ
Ｌ1 よりも短縮されるに際して、弯曲部２８の軸方向長
さＲ1 が短い長さＲ2 に減少するためである。このＲ1
からＲ2 への減少に際して、その部分の肉厚が移行する
ため、その分、弯曲部２８の肉厚ｔ2 は元の肉厚ｔ1 よ
りも厚くなる。[0022] This is because the distance L 2 of the engaging portion 27 upon being shorter than the original length L 1, reduces the axial length R 1 is shorter in length R 2 of the curved portion 28 . This R 1
From the time of reduction to R 2, since the wall thickness of that portion transitions, correspondingly, the thickness t 2 of the curved portion 28 is thicker than the original thickness t 1.
【００２３】この後、図１（ｄ）に示されているよう
に、嵌合部２７の内周面に雌セレーション２９が形成さ
れる。この雌セレーション２９の有効長さＳ0 は、所期
のセレーション結合強度を保つ長さに設定されている。
そして、この雌セレーション２９の有効長さＳ0 は、嵌
合部２７の内周面の有効長さ（平坦な長さに相当す
る。）Ｓ2 が、元の平坦面の長さＳ1 と等しいか、また
は、長くなっているため、所期の設定通りに確保され
る。Thereafter, as shown in FIG. 1D, a female serration 29 is formed on the inner peripheral surface of the fitting portion 27. The effective length S 0 of the female serration 29 is set to a length that maintains the desired serration bonding strength.
The effective length S 0 of the female serration 29 is such that the effective length (corresponding to a flat length) S 2 of the inner peripheral surface of the fitting portion 27 is equal to the length S 1 of the original flat surface. Because they are equal or longer, they are secured as intended.
【００２４】ちなみに、嵌合部２７とヨーク底壁２５と
の接続部である弯曲部２８の肉厚はｔ1 からｔ2 に厚く
なっているため、その弯曲部２９における機械的強度は
増加しても減少することはない。Incidentally, since the thickness of the curved portion 28, which is the connecting portion between the fitting portion 27 and the yoke bottom wall 25, increases from t 1 to t 2 , the mechanical strength of the curved portion 29 increases. It does not decrease.
【００２５】以上のようにして製造されたヨーク２０に
はボス部材１１が、ヨーク底壁２５における嵌合部２７
内に小径部１６を先方にしてヨーク２０の外側から挿入
される。この際、ボス部材１１の大径部１５における雄
セレーション１８がヨーク２０の嵌合部２７の内周にお
ける雌セレーション２９に噛合されてセレーション結合
される。The boss member 11 is attached to the yoke 20 manufactured as described above, and the fitting portion 27 on the yoke bottom wall 25 is provided.
The small-diameter portion 16 is inserted from the outside of the yoke 20. At this time, the male serrations 18 in the large diameter portion 15 of the boss member 11 are engaged with the female serrations 29 on the inner periphery of the fitting portion 27 of the yoke 20 and are serrated and connected.
【００２６】ボス部材１１がヨーク２０の嵌合部２７に
おける内周に、そのフランジ１２が底壁２５の外面に当
接するまで挿入された状態において、ボス部材側の雄セ
レーション１８とヨーク側の雌セレーション２９とは適
度な圧入状態に結合されることになる。When the boss member 11 is inserted into the inner periphery of the fitting portion 27 of the yoke 20 until the flange 12 contacts the outer surface of the bottom wall 25, the male serration 18 on the boss member side and the female serration on the yoke side The serration 29 is coupled to a proper press-fit state.
【００２７】その後、ボス部材１１の大径部１５の外周
における小径部１６との段差部に軸方向外向きの座屈か
しめ加工が施されることによって、ボス部材１１の外周
に座屈かしめ部１７が形成される。この座屈かしめ部１
７とボス部材１１のフランジ部１２との間にヨーク底壁
２５が挟まれることによって、ボス部材１１とヨーク２
０とが抜け止め状態になるとともに、一体化される。Thereafter, a stepped portion of the outer periphery of the large-diameter portion 15 of the boss member 11 and the small-diameter portion 16 is subjected to an axially outward buckling process, so that the outer periphery of the boss member 11 is buckled. 17 are formed. This buckling caulking part 1
7 and the flange portion 12 of the boss member 11, the yoke bottom wall 25 is sandwiched between the boss member 11 and the yoke 2
0 becomes a retaining state and is integrated.
【００２８】以上のようにして、ボス部材１１はヨーク
２０の底壁２５に同心的に配されて周方向および軸心方
向について確実に固定され、ボス部材１１とヨーク２０
とが一体回転するように結合されてなる回転子１０が構
成されたことになる。その後、ヨーク２０内に発電子３
０を構成するコイルユニット３１が装着される。As described above, the boss member 11 is arranged concentrically on the bottom wall 25 of the yoke 20 and securely fixed in the circumferential direction and the axial direction.
Thus, the rotor 10 is configured so as to be integrally rotated. Thereafter, the electron emission 3 is placed in the yoke 20.
0 is mounted.
【００２９】以上説明した本実施例によれば、嵌合部２
７が弯曲部２８を解消する方向に押し戻されるように塑
性変形されて、その結果、嵌合部２７の内側端面がヨー
ク底壁２５側へ寄せられた状態になるため、ヨーク２０
とコイルユニット３０との干渉限界（図２のＧを参照）
を低く設定することができる。According to the embodiment described above, the fitting portion 2
7 is plastically deformed so as to be pushed back in the direction in which the curved portion 28 is eliminated, and as a result, the inner end face of the fitting portion 27 is brought closer to the yoke bottom wall 25 side.
Limit of interference between coil and coil unit 30 (see G in FIG. 2)
Can be set low.
【００３０】また、同一干渉限界寸法の場合には、ヨー
ク２０の嵌合部２７の長さを、Ｌ1からＬ2 に短縮する
ことができるため、その分、コアの積厚を厚くすること
が可能となり、回転子の出力を向上させることができ
る。Further, in the case of the same interference limit size, the length of the fitting portion 27 of the yoke 20 can be reduced from L 1 to L 2 , so that the thickness of the core is increased accordingly. And the output of the rotor can be improved.
【００３１】他方、嵌合部２７の軸方向長さが短縮され
るにもかかわらず、平坦な内周面の長さＳ2 は内周面に
形成される雌セレーション２９の有効長さＳ0 を維持す
ることができる。したがって、セレーション結合によっ
てボス部材１１をヨーク２０に確実に固定することがで
きる。その結果、リベットを用いてボス部材をヨークに
固定するときよりも、製造コストを低減することができ
る。On the other hand, despite the fact that the axial length of the fitting portion 27 is reduced, the length S 2 of the flat inner peripheral surface is equal to the effective length S 0 of the female serration 29 formed on the inner peripheral surface. Can be maintained. Therefore, the boss member 11 can be securely fixed to the yoke 20 by the serration connection. As a result, the manufacturing cost can be reduced as compared with the case where the boss member is fixed to the yoke using the rivets.
【００３２】[0032]
【発明の効果】以上説明したように、本発明によれば、
セレーションの有効長を充分に確保しつつ、ヨークとス
テータコイルとの干渉限界を低く設定することができ、
その結果、製造コストの低減に寄与することができる。As described above, according to the present invention,
The interference limit between the yoke and the stator coil can be set low while ensuring the effective length of the serration,
As a result, it is possible to contribute to a reduction in manufacturing cost.
【図１】（ａ）、（ｂ）、（ｃ）、（ｄ）は本発明の一
実施例である磁石発電機の回転子の製造方法における主
要工程を示す各工程説明図である。FIGS. 1 (a), (b), (c) and (d) are explanatory diagrams showing main steps in a method of manufacturing a rotor of a magnet generator according to an embodiment of the present invention.
【図２】その製造方法によって製造された磁石発電機の
回転子を示す正面断面図である。FIG. 2 is a front sectional view showing a rotor of the magnet generator manufactured by the manufacturing method.
１０…回転子、１１…ボス部材、１２…フランジ、１３
…テーパー内周面、１４…凹部、１５…大径部、１６…
小径部、１７…座屈かしめ部、１８…ボス部材側の雄セ
レーション、１９…回転軸、２０…ヨーク、２１…側
壁、２２…マグネット、２３…ケース、２４…巻きかし
め部、２５…底壁、２６…開口、２７…嵌合部、２８…
弯曲部、２９…ヨーク側の雌セレーション、３０…発電
子、３１…コイルユニット、Ｌ1 …バーリング加工後の
嵌合部の長さ、Ｌ2 …短縮塑性加工後の嵌合部の長さ、
Ｓ1 、Ｓ2 …平坦面の長さ、Ｒ1 、Ｒ2 …弯曲部の軸方
向長さ、ｔ1 、ｔ2 …弯曲部の肉厚。Reference numeral 10: rotor, 11: boss member, 12: flange, 13
... taper inner peripheral surface, 14 ... concave portion, 15 ... large diameter portion, 16 ...
Small-diameter portion, 17 buckling caulking portion, 18 male boss on the boss member side, 19 rotating shaft, 20 yoke, 21 side wall, 22 magnet, 23 case, 24 wrapping portion, 25 bottom wall , 26 ... opening, 27 ... fitting part, 28 ...
Curved portion, 29 ... yoke side of the female serration, 30 ... Hatsudenko, 31 ... coil unit, L 1 ... length of the fitting portion after the burring, L 2 ... shortening plastic working after the fitting portion of the length of,
S 1, S 2 ... flat surface length of, R 1, R 2 ... curved portion the axial length of the wall thickness of t 1, t 2 ... bend region.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−34758（ＪＰ，Ａ) 特開 昭63−260631（ＪＰ，Ａ) 特開 平４−258339（ＪＰ，Ａ) ────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-57-34758 (JP, A) JP-A-63-260631 (JP, A) JP-A-4-258339 (JP, A)
Claims (1)
成されその円筒形状の外周の一部に雄セレーションが形
成されているボス部材と、略椀形状に形成されその底壁
に開設された開口の周囲に略円筒形状の嵌合部が形成さ
れているとともに、嵌合部の内周に雌セレーションが形
成されているヨークとを備えており、ボス部材がヨーク
の嵌合部に互いのセレーションを結合されて嵌合されて
いるとともに、ボス部材の先端部が座屈かしめ加工され
てヨークに固定されている磁石発電機の回転子であっ
て、コイルユニットの端面がヨークの底壁に対向されて
発電子が内部に挿入される磁石発電機の回転子の製造方
法において、 前記ヨーク底壁の中央部に前記ボス部材を挿通するため
の前記開口が開設される工程と、 前記ヨーク底壁における前記開口の周辺部がヨークの軸
方向内向きに突出するように曲げ加工されて、軸方向全
長（Ｌ １ ）が弯曲部の凸状弯曲面の軸方向長さ（Ｒ １ ）
と平坦面長さ（Ｓ １ ）との和である内周面を有する前記
嵌合部が形成される工程と、前記工程で形成された 嵌合部がヨークの軸方向外向きに
押し戻し塑性変形されて、嵌合部のヨーク底壁外側端面
から開口端面までの軸方向の長さが短縮され、塑性変形
された軸方向全長（Ｌ ２ ）から凸状弯曲面の軸方向長さ
（Ｒ ２ ）を減じた平坦面長さ（Ｓ ２ ）が塑性変形前の前
記平坦面長さ（Ｓ １ ）以上の内周面を有する嵌合部が形
成される工程と、 前記塑性変形後の嵌合部の内周面に前記雌セレーション
が形成される工程と、を備えていることを特徴とする磁
石発電機の回転子の製造方法。1. A boss member formed in a substantially cylindrical shape having a flange on the outer circumference and having a male serration formed on a part of the outer circumference of the cylindrical shape, and an opening formed in a substantially bowl shape and opened on a bottom wall thereof. And a yoke in which a female serration is formed on the inner periphery of the fitting portion, and a boss member is formed on the fitting portion of the yoke. And a rotor of the magnet generator, the tip of the boss member being buckled and fixed to the yoke.
And the end face of the coil unit faces the bottom wall of the yoke.
The method of manufacturing a rotor of the magneto generator power generation element is inserted into, for inserting the boss member in a central portion of the yoke bottom wall
The opening of the yoke is opened, and the periphery of the opening in the yoke bottom wall is the axis of the yoke.
Bending so that it protrudes inward in the direction
The length (L 1 ) is the axial length (R 1 ) of the convex curved surface of the curved portion.
A flat surface length (S 1) and said the step of <br/> fitting portion is formed, axially outward of the fitting portion formed in the step yoke having an inner peripheral surface which is the sum of back <br/> push is plastically deformed, the axial length of up to the opening end face is reduced from the yoke bottom wall outer end surface of the fitting portion, the plastic deformation
Axial length of the convex curved surface from the total axial length (L 2 )
The flat surface length (S 2 ) obtained by subtracting (R 2 ) is the value before plastic deformation.
The fitting portion having an inner peripheral surface longer than the flat surface length (S 1 ) is formed.
A step to be formed, the manufacturing method of the rotor of the magneto generator which is characterized by comprising a, a step of the female serrations are formed on the inner peripheral surface of the fitting portion after the plastic deformation.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5152905A JP3003748B2 (en) | 1993-05-31 | 1993-05-31 | Method for manufacturing rotor of magnet generator |
| IT94TO000439A IT1266845B1 (en) | 1993-05-31 | 1994-05-27 | METHOD FOR THE MANUFACTURE OF A ROTOR IN A MAGNET. |
| FR9406489A FR2706096B1 (en) | 1993-05-31 | 1994-05-27 | Method of manufacturing a rotor in a magneto-generator. |
| TW083104923A TW255068B (en) | 1993-05-31 | 1994-05-30 | |
| CN94106914A CN1037559C (en) | 1993-05-31 | 1994-05-31 | Method of manufacturing rotor in magneto generator |
| KR1019940012135A KR100271733B1 (en) | 1993-05-31 | 1994-05-31 | Method of manufacturing rotor in magneto generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5152905A JP3003748B2 (en) | 1993-05-31 | 1993-05-31 | Method for manufacturing rotor of magnet generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06343251A JPH06343251A (en) | 1994-12-13 |
| JP3003748B2 true JP3003748B2 (en) | 2000-01-31 |
Family
ID=15550705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5152905A Expired - Lifetime JP3003748B2 (en) | 1993-05-31 | 1993-05-31 | Method for manufacturing rotor of magnet generator |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP3003748B2 (en) |
| KR (1) | KR100271733B1 (en) |
| CN (1) | CN1037559C (en) |
| FR (1) | FR2706096B1 (en) |
| IT (1) | IT1266845B1 (en) |
| TW (1) | TW255068B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3281245B2 (en) * | 1995-12-11 | 2002-05-13 | 株式会社ミツバ | Magnet generator rotor |
| TWI239712B (en) * | 2003-03-31 | 2005-09-11 | Yamaha Motor Co Ltd | Rotating electric machine and electric vehicle |
| US7589675B2 (en) | 2006-05-19 | 2009-09-15 | Industrial Technology Research Institute | Broadband antenna |
| DE102009041478A1 (en) * | 2009-09-14 | 2011-03-31 | Magna Presstec Ag | Component, in particular handlebar for a vehicle |
| DE202009016416U1 (en) * | 2009-12-02 | 2010-04-22 | Fischer & Kaufmann Gmbh & Co. Kg | bearing element |
| CN101951204A (en) * | 2010-03-02 | 2011-01-19 | 高宗大 | Magnetic converting engine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734758A (en) * | 1980-08-07 | 1982-02-25 | Mitsuba Denki Seisakusho:Kk | Rotor for magnet generator |
| FR2493196A1 (en) * | 1980-10-31 | 1982-05-07 | Valeo | METHOD FOR THE ASSEMBLY OF TWO CONCENTRIC PARTS, AND A SET OF TWO CONCENTRIC PARTS SO ASSEMBLED |
| JPS5736568A (en) * | 1981-02-18 | 1982-02-27 | Mitsuba Denki Seisakusho:Kk | Rotor of magnet generator |
| JPS61102152A (en) * | 1984-10-23 | 1986-05-20 | Shinano Totsuki Kk | Production of rotor and stator for rotary electric machine |
| JPH084849B2 (en) * | 1987-04-15 | 1996-01-24 | 株式会社日立製作所 | Burring machine |
| JP3135553B2 (en) * | 1990-09-01 | 2001-02-19 | 日本電産株式会社 | Spindle motor |
| JPH0813398B2 (en) * | 1991-02-12 | 1996-02-14 | アイダエンジニアリング株式会社 | Flange member plastic working method |
| JPH0595659A (en) * | 1991-09-30 | 1993-04-16 | Toshiba Lighting & Technol Corp | Brushless motor and speed control circuit thereof |
-
1993
- 1993-05-31 JP JP5152905A patent/JP3003748B2/en not_active Expired - Lifetime
-
1994
- 1994-05-27 IT IT94TO000439A patent/IT1266845B1/en active IP Right Grant
- 1994-05-27 FR FR9406489A patent/FR2706096B1/en not_active Expired - Fee Related
- 1994-05-30 TW TW083104923A patent/TW255068B/zh active
- 1994-05-31 KR KR1019940012135A patent/KR100271733B1/en not_active IP Right Cessation
- 1994-05-31 CN CN94106914A patent/CN1037559C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06343251A (en) | 1994-12-13 |
| CN1100240A (en) | 1995-03-15 |
| FR2706096A1 (en) | 1994-12-09 |
| TW255068B (en) | 1995-08-21 |
| ITTO940439A0 (en) | 1994-05-27 |
| KR940027257A (en) | 1994-12-10 |
| KR100271733B1 (en) | 2000-11-15 |
| IT1266845B1 (en) | 1997-01-21 |
| CN1037559C (en) | 1998-02-25 |
| FR2706096B1 (en) | 1995-11-17 |
| ITTO940439A1 (en) | 1995-11-27 |
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