JPH06153458A - Motor and commutator of rotor of the motor - Google Patents
Motor and commutator of rotor of the motorInfo
- Publication number
- JPH06153458A JPH06153458A JP29168892A JP29168892A JPH06153458A JP H06153458 A JPH06153458 A JP H06153458A JP 29168892 A JP29168892 A JP 29168892A JP 29168892 A JP29168892 A JP 29168892A JP H06153458 A JPH06153458 A JP H06153458A
- Authority
- JP
- Japan
- Prior art keywords
- commutator
- shaft
- resin
- fixed
- commutators
- 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
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電動機の回転子の整流
子に係り、特に整流子をシャフトに固定する構造に特徴
を有する電動機及びその整流子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a commutator of a rotor of an electric motor, and more particularly to an electric motor and its commutator characterized by a structure for fixing the commutator to a shaft.
【０００２】[0002]
【従来の技術】従来、電動機の回転子の整流子をシャフ
トに固定する構造に関する公知技術として、以下のもの
がある。2. Description of the Related Art Conventionally, there are the following known techniques relating to a structure for fixing a commutator of a rotor of an electric motor to a shaft.
【０００３】１．回転機の電機子（特開昭６３−９５８
３７） この公知技術は、整流子の内径部に金属製のブッシュを
一体成形し、ブッシュの内径を必要精度で加工してブッ
シュをシャフトに圧入することにより、回転機の性能を
低下させることなく電機子のバランス取りができる構造
とするものである。1. Armature of rotating machine (Japanese Patent Laid-Open No. 63-958)
37) In this known technique, a metal bush is integrally formed on the inner diameter portion of the commutator, the inner diameter of the bush is processed with required accuracy, and the bush is press-fitted onto the shaft, so that the performance of the rotating machine is not deteriorated. The structure is such that the armature can be balanced.
【０００４】２．回転電機の電機子製造方法（特公昭６
０−３７６９６） この公知技術は、シャフトを整流子の内径部に一体成形
することにより、整流子の機械的強度の向上等を図るも
のである。2. Method for manufacturing armature of rotating electric machine (Japanese Patent Publication Sho 6)
0-37696) This known technique is intended to improve the mechanical strength of the commutator by integrally molding the shaft on the inner diameter portion of the commutator.
【０００５】３．結合軸の製造方法（特公昭５９−３８
８６１） この公知技術は、シャフトに設けられた外径基礎円より
外周方向に突きでた帯状爪を整流子の内周面に食い込ま
せることにより、結合部のトルク強度を高くするもので
ある。3. Method for manufacturing bond shaft (Japanese Patent Publication No. 59-38)
861) This known technique is to increase the torque strength of the coupling portion by causing the strip-shaped claw protruding in the outer peripheral direction from the outer diameter basic circle provided on the shaft to bite into the inner peripheral surface of the commutator.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら上記公知
技術には以下の問題点が存在する。すなわち、公知技術
１は、金属のブッシュをシャフトに圧入するために双方
ともに高い精度が要求されコスト高となる。また圧入時
に導体部とブッシュの間の樹脂に過大な内圧がかかり樹
脂が製造時に初期的に破壊する恐れがありこれが基とな
って使用時に経時クリープ破壊する恐れがある。さらに
樹脂がクリープ破壊すると遠心力で導体が樹脂から剥が
れて整流子そのものが破壊する恐れがある。また、公知
技術２は、整流子のインサート一体成形の作業が煩雑で
あり、非効率的である。さらに、公知技術３は、整流子
挿入時に整流子が帯状爪に片よって食い込む恐れがあり
整流子と該シャフトとの間の同軸精度が悪くなる。However, the above-mentioned known technique has the following problems. In other words, in the known technique 1, since a metal bush is press-fitted into the shaft, high precision is required for both of them, resulting in high cost. In addition, an excessive internal pressure is applied to the resin between the conductor portion and the bush at the time of press-fitting, which may cause the resin to initially break during manufacturing, which may cause creep destruction over time during use. Further, if the resin breaks down by creep, the conductor may be peeled off from the resin by centrifugal force and the commutator itself may be broken. Further, in the known technique 2, the work of integrally molding the insert of the commutator is complicated and inefficient. Further, in the known technique 3, the commutator may be bitten by the strip-shaped claw when the commutator is inserted, and the coaxial accuracy between the commutator and the shaft deteriorates.
【０００７】本発明の目的は、製造時における整流子固
定作業時の初期的破壊及びその後の経時クリープ破壊を
低減でき、かつ整流子の成形作業性がよく、かつ整流子
とシャフトの間の同軸精度を向上できる電動機及び整流
子を提供することである。The object of the present invention is to reduce the initial breakage at the time of fixing work of a commutator during manufacturing and the subsequent creep breakage, the workability of forming the commutator is good, and the coaxial between the commutator and the shaft. An object of the present invention is to provide a motor and a commutator that can improve accuracy.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、界磁極を備えた固定子と、前記固定子の
内側に回転可能に支持されるシャフトと、前記シャフト
に固定される磁気鉄心と、前記磁気鉄心の外周に配置さ
れる複数のコイルと、前記シャフトに固定され前記コイ
ルと電気的に接続された複数の導体部が外周に設けられ
た整流子とを備えた回転子を有する電動機において、前
記整流子は樹脂で構成されその内周面は内径が中間部に
おいて最小で両端に向かって大きくなるテーパ形状を有
し、かつ前記シャフトは該整流子の内周面に圧入固定さ
れる。In order to achieve the above object, the present invention provides a stator having field poles, a shaft rotatably supported inside the stator, and a shaft fixed to the shaft. A magnetic iron core, a plurality of coils arranged on the outer circumference of the magnetic iron core, and a commutator provided on the outer circumference with a plurality of conductor portions fixed to the shaft and electrically connected to the coils. In an electric motor having a child, the commutator is made of resin, and the inner peripheral surface thereof has a taper shape in which the inner diameter is smallest in the middle portion and increases toward both ends, and the shaft is formed on the inner peripheral surface of the commutator. Press-fitted and fixed.
【０００９】好ましくは、前記シャフトは該シャフトと
整流子とを剛固に固定する固定手段を有する。Preferably, the shaft has a fixing means for rigidly fixing the shaft and the commutator.
【００１０】また好ましくは、前記固定手段は前記シャ
フト外表面より外側に突き出た複数の爪であり、該複数
の爪を前記整流子の樹脂の内周面に食い込ませ前記シャ
フトと該整流子とを固定する。Further, preferably, the fixing means is a plurality of claws protruding outward from the outer surface of the shaft, and the plurality of claws are made to bite into the inner peripheral surface of the resin of the commutator and the shaft and the commutator. To fix.
【００１１】さらに好ましくは、前記複数の爪の先端を
結んだ円は、前記整流子の中間部の内径よりも大きい外
径を有する。More preferably, the circle connecting the tips of the plurality of claws has an outer diameter larger than the inner diameter of the middle portion of the commutator.
【００１２】また、上記目的を達成するために、本発明
は、固定子の内側に回転可能に支持されたシャフトに固
定され、磁気鉄心の外周に配置された複数のコイルと電
気的に接続された複数の導体部を外周に備えた電動機の
回転子の整流子において、前記整流子は樹脂で構成さ
れ、かつ前記シャフトが挿入される前記整流子の樹脂の
内周面は、その内径が中間部において最小であり両端に
向かって大きくなるテーパ形状を有する。To achieve the above object, the present invention is fixed to a shaft rotatably supported inside a stator and electrically connected to a plurality of coils arranged on the outer circumference of a magnetic core. In a commutator of a rotor of an electric motor having a plurality of conductors on the outer circumference, the commutator is made of resin, and the inner peripheral surface of the resin of the commutator into which the shaft is inserted has an inner diameter that is intermediate. It has a taper shape that is the smallest in the area and increases toward both ends.
【００１３】[0013]
【作用】以上のように構成した本発明においては、樹脂
で構成された整流子の内周面がテーパ形状を有し、これ
をガイドとして該内周面にシャフトが圧入固定されるこ
とにより、最小内径である中間部に内圧が集中する。ま
た整流子の成形工程において従来のようにシャフトやブ
ッシュをインサートする必要がない。さらに整流子とシ
ャフトとの間の平行性が保たれる。また最小内径の中間
部近傍のみで整流子が支持されることにより、加工精度
が比較的低くても圧入し固定される。In the present invention configured as described above, the inner peripheral surface of the commutator made of resin has a tapered shape, and the shaft is press-fitted and fixed to the inner peripheral surface using this as a guide. Internal pressure concentrates in the middle part, which is the smallest inner diameter. In addition, it is not necessary to insert a shaft or a bush in the commutator forming process, unlike the conventional case. Furthermore, the parallelism between the commutator and the shaft is maintained. Further, since the commutator is supported only in the vicinity of the middle part of the minimum inner diameter, the commutator is press-fitted and fixed even if the machining accuracy is relatively low.
【００１４】また、固定手段により前記シャフトと前記
整流子とをさらに剛固に固定する。さらに該固定手段の
例としては該シャフト外表面より外側に突き出た複数の
爪とする構成があり、これを前記整流子の樹脂の内周面
に食い込ませることにより剛固に固定する。また前記複
数の爪の先端を結んだ円の外径が該整流子の中間部の内
径よりも大きいことにより、前記中間部近傍の内周面に
対してのみ該複数の爪を食い込ませる。したがって内圧
がかかる点が中間部近傍の複数の爪の先端に限定され
る。Further, the shaft and the commutator are further rigidly fixed by the fixing means. Further, as an example of the fixing means, there is a structure in which a plurality of claws are projected from the outer surface of the shaft to the outside, and the claws are bite into the inner peripheral surface of the resin of the commutator to firmly fix the same. Further, since the outer diameter of the circle connecting the tips of the plurality of claws is larger than the inner diameter of the middle portion of the commutator, the plurality of claws are only bited into the inner peripheral surface near the middle portion. Therefore, the point where the internal pressure is applied is limited to the tips of the plurality of claws near the intermediate portion.
【００１５】[0015]
【実施例】以下、本発明の実施例を図１〜図６により説
明する。本発明の第１の実施例を図１〜図３により説明
する。本実施例の電動機の回転子の構造を図１に示す。
図１は本実施例の回転子の断面図である。Embodiments of the present invention will be described below with reference to FIGS. A first embodiment of the present invention will be described with reference to FIGS. The structure of the rotor of the electric motor of this embodiment is shown in FIG.
FIG. 1 is a sectional view of the rotor of this embodiment.
【００１６】図１において、電動機の回転子は、界磁極
５ａを備えた固定子５の内側に図示しない軸受で回転可
能に支持されるシャフト４と、シャフト４の中間に固定
された磁気鉄心６と、磁気鉄心６の外周付近に配置され
導体部１の溝１ａに加熱溶着等の方法で電気的に接続さ
れた複数のコイル７と、シャフト４に圧入固定された整
流子３とを有する。In FIG. 1, a rotor of an electric motor includes a shaft 4 rotatably supported by a bearing (not shown) inside a stator 5 having field poles 5a, and a magnetic core 6 fixed in the middle of the shaft 4. And a plurality of coils 7 arranged near the outer circumference of the magnetic core 6 and electrically connected to the groove 1a of the conductor portion 1 by a method such as heat welding, and a commutator 3 press-fitted and fixed to the shaft 4.
【００１７】整流子３の構造を図２及び図３に示す。図
２は整流子３の正面図、図３は図２のＡ−Ａ断面図であ
る。図において整流子３は、例えばガラス繊維補強フェ
ノール樹脂をプレス成形した樹脂２で一体成形された複
数の導体部１が外周に円筒状に配置された構造となって
いる。また、整流子３の樹脂２の内周面はテーパ形状で
あり中間部２ａの径φｂが最小で端部に近いほど径が大
きくなっている。製造時には整流子３はＰ方向からシャ
フト４に挿入されテーパ形状にならって圧入固定される
ので、樹脂２には最小内径φｂである中間部２ａのみに
集中して内圧がかかる。The structure of the commutator 3 is shown in FIGS. 2 is a front view of the commutator 3, and FIG. 3 is a sectional view taken along line AA of FIG. In the figure, the commutator 3 has a structure in which a plurality of conductor portions 1 integrally formed of a resin 2 obtained by press-molding a glass fiber reinforced phenol resin are arranged in a cylindrical shape on the outer circumference. Further, the inner peripheral surface of the resin 2 of the commutator 3 has a taper shape, and the diameter φb of the intermediate portion 2a is the smallest and the diameter becomes larger as it gets closer to the end portion. During manufacture, the commutator 3 is inserted into the shaft 4 from the P direction and press-fitted and fixed in a taper shape, so that the resin 2 is subjected to internal pressure concentrated only on the intermediate portion 2a having the minimum inner diameter φb.
【００１８】寸法の一例を示すと、例えば樹脂２の外径
ｄ2＝２９ｍｍ、シャフト４の外径ｄ4＝１２ｍｍに対
し、中間部２ａ突起部分の高さ△ｒ＝２５／１０００ｍ
ｍ＝２５μｍ程度である。As an example of the dimensions, for example, with respect to the outer diameter d2 of the resin 2 = 29 mm and the outer diameter d4 of the shaft 4 = 12 mm, the height Δr = 25/1000 m of the protruding portion of the intermediate portion 2a.
It is about m = 25 μm.
【００１９】本実施例によれば、整流子３とシャフト４
の固定において、中間部２ａに内圧が集中し全体として
樹脂２にかかる内圧を軽減することができる。したがっ
て樹脂２の初期破壊が発生したとしても中間部２ａのみ
にとどまり、初期破壊に由来する経時クリープ破壊を全
体として軽減することができる。また整流子３の成形工
程において、シャフトあるいはブッシュをインサートす
る必要がなく成形工程を簡素化できる。さらに整流子３
挿入時にテーパ形状がガイドとなって圧入固定されるの
で整流子３とシャフト４との間の平行性が保たれ同軸精
度が良い。According to this embodiment, the commutator 3 and the shaft 4 are
In fixing, the internal pressure is concentrated on the intermediate portion 2a, and the internal pressure applied to the resin 2 as a whole can be reduced. Therefore, even if the initial failure of the resin 2 occurs, it stays only in the intermediate portion 2a, and the time-dependent creep failure resulting from the initial failure can be reduced as a whole. Further, in the molding process of the commutator 3, it is not necessary to insert a shaft or a bush, and the molding process can be simplified. Further commutator 3
Since the tapered shape serves as a guide and is press-fitted and fixed during insertion, the parallelism between the commutator 3 and the shaft 4 is maintained, and the coaxial accuracy is good.
【００２０】本発明の第２の実施例を図４〜図６により
説明する。第１の実施例と共通の部品については共通の
番号で示す。本実施例のシャフトの断面構造を図４に示
す。シャフト１４は、整流子３を固定するための帯状爪
１４ａを有する。この帯状爪１４ａの先端を結んだ円の
径φａ、整流子３の内周面の中間部２ａの最小内径φ
ｂ、シャフト１４の外径基礎円の径φｃの間にはφａ＞
φｂ＞φｃの関係がある。すなわち、中間部２ａの径は
外径基礎円よりは大きく帯状爪先端径よりは小さい。A second embodiment of the present invention will be described with reference to FIGS. Parts common to the first embodiment are designated by common numbers. The sectional structure of the shaft of this embodiment is shown in FIG. The shaft 14 has a strip claw 14 a for fixing the commutator 3. The diameter φa of the circle connecting the tips of the strip claws 14a, the minimum inner diameter φ of the intermediate portion 2a of the inner peripheral surface of the commutator 3.
b, between the outer diameter of the shaft 14 and the diameter φc of the basic circle, φa>
There is a relationship of φb> φc. That is, the diameter of the intermediate portion 2a is larger than the outer diameter basic circle and smaller than the band-shaped claw tip diameter.
【００２１】上記構成のシャフト１４を、帯状爪１４ａ
を整流子３の樹脂２内周面の中間部２ａに食い込ませて
固定する。この詳細を図５及び図６に示す。図５はシャ
フトと整流子の固定部の拡大図、図６は図５のＢ−Ｂ断
面図である。この圧入時においては第１の実施例と同様
にテーパ形状がガイドとなるので、帯状爪１４ａを有し
ていてもシャフト１４との間の平行性が保たれ同軸精度
は低下しない。The shaft 14 having the above-mentioned structure is attached to the strip-shaped claw 14a.
Is cut into the intermediate portion 2a of the inner peripheral surface of the resin 2 of the commutator 3 and fixed. The details are shown in FIGS. 5 and 6. FIG. 5 is an enlarged view of the fixing portion of the shaft and the commutator, and FIG. 6 is a sectional view taken along line BB of FIG. At the time of this press-fitting, since the tapered shape serves as a guide as in the first embodiment, the parallelism with the shaft 14 is maintained and the coaxial accuracy is not deteriorated even if the claw 14a is provided.
【００２２】本実施例によれば、第１の実施例と同様の
効果に加え、帯状爪の先端円の径φａ＞中間部２ａの最
小内径φｂ＞シャフト１４の外径基礎円の径φｃである
ので、内圧がかかる点は中間部２ａ付近の帯状爪１４ａ
の先端のみに限定され、第１の実施例よりさらに樹脂２
にかかる内圧を軽減することができる。According to the present embodiment, in addition to the same effect as the first embodiment, the diameter φa of the tip circle of the band-shaped claw> the minimum inner diameter φb of the intermediate portion 2a> the outer diameter of the shaft 14 the diameter φc of the basic circle. Therefore, the point where the internal pressure is applied is that the strip claw 14a near the intermediate portion 2a
Of the resin 2 from the first embodiment
It is possible to reduce the internal pressure applied to.
【００２３】[0023]
【発明の効果】本発明によれば、整流子とシャフトの固
定作業工程において最小内径の中間部に内圧が集中し全
体として樹脂にかかる内圧を軽減するので、初期破壊し
たとしても最小内径部のみにとどまる。したがって樹脂
が全面的に経時クリープ破壊する恐れを低減することが
できる。また整流子の成形工程においてシャフトもしく
はブッシュをインサートする必要がないので、成形工程
を簡素化できる。さらにテーパ形状にならってシャフト
が圧入されるので、整流子とシャフトとの間の平行性が
保たれ同軸精度が良い。また最小内径の中間部近傍のみ
で整流子が支持されるので加工精度が比較的低くても圧
入固定が可能でありコストダウンが図れる。また、固定
手段によりシャフトと整流子とをさらに剛固に固定する
ことができる。さらにシャフト外表面より外側に突き出
た複数の爪を内周面に食い込ませるので、剛固に固定す
ることができる。また複数の爪の先端を結んだ円の外径
が整流子の内径より大きいので、中間部近傍の内周面に
対してのみ複数の爪を食い込ませることができる。さら
に、内圧がかかる点が中間部近傍の複数の爪の先端に限
定されるので、全体として樹脂にかかる内圧をさらに軽
減できる。According to the present invention, in the process of fixing the commutator and the shaft, the internal pressure is concentrated on the intermediate portion of the minimum inner diameter, and the internal pressure applied to the resin is reduced as a whole. Stay in. Therefore, it is possible to reduce the possibility that the resin is entirely destroyed by creep over time. Further, since it is not necessary to insert the shaft or the bush in the commutator molding process, the molding process can be simplified. Further, since the shaft is press-fitted following the tapered shape, the parallelism between the commutator and the shaft is maintained, and the coaxial accuracy is good. Further, since the commutator is supported only in the vicinity of the middle portion of the minimum inner diameter, it is possible to press-fit and fix even if the processing accuracy is comparatively low, and the cost can be reduced. Further, the shaft and the commutator can be more rigidly fixed by the fixing means. Furthermore, since a plurality of claws protruding outward from the outer surface of the shaft are made to bite into the inner peripheral surface, it is possible to firmly fix them. Further, since the outer diameter of the circle connecting the tips of the plurality of claws is larger than the inner diameter of the commutator, it is possible to make the plurality of claws bite only into the inner peripheral surface near the intermediate portion. Furthermore, since the point where the internal pressure is applied is limited to the tips of the plurality of claws near the intermediate portion, the internal pressure applied to the resin as a whole can be further reduced.
【図１】本発明の第１の実施例の電動機の回転子の断面
図である。FIG. 1 is a sectional view of a rotor of an electric motor according to a first embodiment of the present invention.
【図２】本発明の第１の実施例の電動機の回転子の整流
子の正面図である。FIG. 2 is a front view of the commutator of the rotor of the electric motor according to the first embodiment of the present invention.
【図３】電動機の回転子の断面図である。FIG. 3 is a sectional view of a rotor of an electric motor.
【図４】本発明の第２の実施例のシャフトの断面図であ
る。FIG. 4 is a sectional view of a shaft according to a second embodiment of the present invention.
【図５】シャフトと整流子の固定部の拡大図である。FIG. 5 is an enlarged view of a fixed portion of a shaft and a commutator.
【図６】シャフトと整流子の固定部の断面図である。FIG. 6 is a sectional view of a fixed portion of a shaft and a commutator.
１ 導体部 ２ 樹脂 ２ａ 中間部 ３ 整流子 ４ シャフト ５ 固定子 ５ａ 界磁極 ６ 磁気鉄心 ７ コイル １４ シャフト １４ａ 帯状爪 φａ 帯状爪の先端を結んだ円の径 φｂ 整流子の内周面の最小内径 φｃ シャフトの外径基礎円の径 1 conductor part 2 resin 2a middle part 3 commutator 4 shaft 5 stator 5a field pole 6 magnetic iron core 7 coil 14 shaft 14a band claw φa diameter of circle connecting the ends of band claw φb minimum inner diameter of commutator φc Outer diameter of shaft Basic circle diameter
───────────────────────────────────────────────────── フロントページの続き (72)発明者 阿部 光利 茨城県勝田市大字高場字鹿島谷津2477番地 ３ 日立オートモティブエンジニアリング 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Mitsutoshi Abe 2477 Kashima Yatsu Kashima, Katsuta City, Ibaraki Prefecture 3 Hitachi Automotive Engineering Co., Ltd.
Claims (5)
内側に回転可能に支持されるシャフトと、前記シャフト
に固定される磁気鉄心と、前記磁気鉄心の外周に配置さ
れる複数のコイルと、前記シャフトに固定され前記コイ
ルと電気的に接続された複数の導体部が外周に設けられ
た整流子とを備えた回転子を有する電動機において、 前記整流子は樹脂で構成されその内周面は内径が中間部
において最小で両端に向かって大きくなるテーパ形状を
有し、かつ前記シャフトは該整流子の内周面に圧入固定
されることを特徴とする電動機。1. A stator provided with field poles, a shaft rotatably supported inside the stator, a magnetic core fixed to the shaft, and a plurality of magnetic cores arranged on the outer periphery of the magnetic core. In a motor having a rotor including a coil and a commutator having a plurality of conductor portions fixed to the shaft and electrically connected to the coil, the commutator being made of resin, The motor is characterized in that the peripheral surface has a taper shape in which the inner diameter is smallest in the middle portion and increases toward both ends, and the shaft is press-fitted and fixed to the inner peripheral surface of the commutator.
ャフトは該シャフトと整流子とを剛固に固定する固定手
段を有することを特徴とする電動機。2. The electric motor according to claim 1, wherein the shaft has fixing means for rigidly fixing the shaft and the commutator.
定手段は前記シャフト外表面より外側に突き出た複数の
爪であることを特徴とする電動機。3. The electric motor according to claim 2, wherein the fixing means is a plurality of claws protruding outward from the outer surface of the shaft.
数の爪の先端を結んだ円は、前記整流子の中間部の内径
よりも大きい外径を有することを特徴とする電動機。4. The electric motor according to claim 3, wherein a circle connecting the tips of the plurality of claws has an outer diameter larger than an inner diameter of an intermediate portion of the commutator.
ャフトに固定され、磁気鉄心の外周に配置された複数の
コイルと電気的に接続された複数の導体部を外周に備え
た電動機の回転子の整流子において、 前記整流子は樹脂で構成され、かつ前記シャフトが挿入
される前記整流子の樹脂の内周面は、その内径が中間部
において最小であり両端に向かって大きくなるテーパ形
状を有することを特徴とする整流子。5. An electric motor having a plurality of conductor portions fixed to a shaft rotatably supported inside a stator and electrically connected to a plurality of coils arranged on the outer periphery of a magnetic iron core. In the commutator of the rotor, the commutator is made of resin, and the inner peripheral surface of the resin of the commutator into which the shaft is inserted has a taper in which the inner diameter is the smallest in the middle part and increases toward both ends. A commutator having a shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29168892A JP2856615B2 (en) | 1992-10-29 | 1992-10-29 | Commutator of motor and rotor of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29168892A JP2856615B2 (en) | 1992-10-29 | 1992-10-29 | Commutator of motor and rotor of motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06153458A true JPH06153458A (en) | 1994-05-31 |
| JP2856615B2 JP2856615B2 (en) | 1999-02-10 |
Family
ID=17772125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29168892A Expired - Lifetime JP2856615B2 (en) | 1992-10-29 | 1992-10-29 | Commutator of motor and rotor of motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2856615B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10505430B2 (en) | 2015-09-30 | 2019-12-10 | Hitachi Automotive Systems Engineering, Ltd. | Rotor of brushed motor and brushed motor |
-
1992
- 1992-10-29 JP JP29168892A patent/JP2856615B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10505430B2 (en) | 2015-09-30 | 2019-12-10 | Hitachi Automotive Systems Engineering, Ltd. | Rotor of brushed motor and brushed motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2856615B2 (en) | 1999-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1121852A (en) | Rotor for a rotary machine and a method of making the same | |
| US8004144B2 (en) | Rotor for automotive alternator having mechanism for positioning magnetic pole cores | |
| US20220255380A1 (en) | Rotor and motor provided with same | |
| US20100117478A1 (en) | Electric motor | |
| JPH04344137A (en) | Stator for motor and manufacture of the stator | |
| US6700262B2 (en) | Rotary electric machine | |
| JP2019509709A (en) | Rotor for axial magnetic flux electromagnetic motor or generator having semi-embedded magnet and axial holding means | |
| US4888508A (en) | Device and procedure to adjust the axial play between the rotor and the stator mounted bearings of an electrical motor | |
| JP2001157393A (en) | Rotor structure for inner rotor-type motor | |
| US20210328470A1 (en) | Outer rotor type motor equipped with power transmission | |
| JP3268762B2 (en) | Rotor of rotating electric machine and method of manufacturing the same | |
| JPH06153458A (en) | Motor and commutator of rotor of the motor | |
| JP6329981B2 (en) | Stator core fixing structure and manufacturing method of stator core fixing structure | |
| EP1202437A2 (en) | Double insulated motor armature | |
| JP2865091B2 (en) | Alternator and method of manufacturing the same | |
| KR100240410B1 (en) | Assembling method for permanent type motor | |
| JP3003308U (en) | Bearing support structure for rotating electrical machines | |
| JPS63194541A (en) | Armature for small-sized motor with commutator | |
| CN210246429U (en) | Brushless motor for electric tool and rotor thereof | |
| JPH08126261A (en) | Rotor of ac generator for vehicle | |
| JP2001251792A (en) | Stator core for rotating electric machine | |
| JP2002315236A (en) | Stator of internal rotating motor | |
| JPH104664A (en) | Ac generator | |
| KR200166027Y1 (en) | A rotor coil fix ring of start motor | |
| US10505430B2 (en) | Rotor of brushed motor and brushed motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20071127 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081127 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081127 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20091127 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20101127 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101127 Year of fee payment: 12 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20101127 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20101127 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 13 Free format text: PAYMENT UNTIL: 20111127 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 13 Free format text: PAYMENT UNTIL: 20111127 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121127 Year of fee payment: 14 |
|
| EXPY | Cancellation because of completion of term |