JPH09261932A - Motor - Google Patents
MotorInfo
- Publication number
- JPH09261932A JPH09261932A JP6634196A JP6634196A JPH09261932A JP H09261932 A JPH09261932 A JP H09261932A JP 6634196 A JP6634196 A JP 6634196A JP 6634196 A JP6634196 A JP 6634196A JP H09261932 A JPH09261932 A JP H09261932A
- Authority
- JP
- Japan
- Prior art keywords
- claw
- electric motor
- partition wall
- armature
- armature core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Dc Machiner (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、特に、電動パワー
ステアリング用電動機に適し、整流を良好とした電動機
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor which is suitable for an electric motor for electric power steering and has good rectification.
【０００２】[0002]
【従来の技術】従来、図６のアーマチャに示すように、
アーマチャコアのスロットを回転方向にスキューさせる
ことで、磁気抵抗の変化を抑えるものが示されている。2. Description of the Related Art Conventionally, as shown in the armature of FIG.
It is shown that the change of the magnetic resistance is suppressed by skewing the slots of the armature core in the rotation direction.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上述した従
来の電動機においては、アーマチャコアのスロットをス
キューさせているため、スロット形状が複雑となること
によるアーマチャの製造工数もかかると共に、スロット
内にアーマチャコイルの巻線を行う際の巻線加工が複雑
になってしまうという問題点があった。However, in the above-described conventional electric motor, since the slot of the armature core is skewed, the slot shape becomes complicated, which requires a lot of man-hours for manufacturing the armature, and the armature inside the slot. There has been a problem that winding work becomes complicated when winding the coil.
【０００４】そこで、本発明は、上記問題点に鑑み、ア
ーマチャコアのスロットをスキューするという複雑な構
成を採用することなく、磁気抵抗の変化を抑え、整流良
好な電動機を提供することである。In view of the above problems, the present invention is to provide an electric motor that suppresses the change in magnetic resistance and does not commutate, without employing a complicated structure in which the slots of the armature core are skewed.
【０００５】[0005]
【課題を解決するための手段】請求項１ないし４の発明
によれば、アーマチャコアのスロット間の隔壁部からの
びる爪部の一部を隣接する隔壁部の一部もしくはこの隔
壁部からのびる爪部の一部と径方向に略対向させること
で、界磁極とアーマチャコア爪部との間の磁気抵抗変化
率を低減することができ、その結果トルクリップルを低
減することができる。According to the invention of claims 1 to 4, a part of the claw portion extending from the partition wall portion between the slots of the armature core is a part of the adjacent partition wall portion or a claw extending from the partition wall portion. By making a portion of the portion substantially opposed to the radial direction, the rate of change in magnetic resistance between the field pole and the armature core claw portion can be reduced, and as a result, torque ripple can be reduced.
【０００６】また、複雑なスロット形状とすることな
く、爪部の形状変更のみで容易にトルクリップルを低減
することができるという効果を有している。Further, there is an effect that the torque ripple can be easily reduced only by changing the shape of the claw portion without forming a complicated slot shape.
【０００７】[0007]
【発明の実施の形態】次に、本発明電動機を図面に基づ
いて説明する。図１ないし図３に示す本発明電動機の第
１実施例において、１はヨークで、２は界磁極をなす磁
石で、ヨーク１の内周に等間隔でありかつ磁石端がアー
マチャシャフト４と平行に取り付けられている。BEST MODE FOR CARRYING OUT THE INVENTION Next, an electric motor of the present invention will be described with reference to the drawings. In the first embodiment of the electric motor according to the present invention shown in FIGS. 1 to 3, 1 is a yoke, 2 is a magnet forming a field pole, and the magnet ends are parallel to the armature shaft 4 at equal intervals on the inner circumference of the yoke 1. Is attached to.
【０００８】３はアーマチャであり、このアーマチャ３
はアーマチャシャフト４と、このアーマチャシャフト４
上に設けられた、複数の板を積層したアーマチャコア５
とから構成される。このアーマチャコア５は、アーマチ
ャシャフト４と平行にのびる複数の略Ｖ字状スロット５
１と、これらスロット５１間を隔てる隔壁部５２と、こ
の隔壁部５２の先端の両側から周方向にのびる第１の爪
部５３と、第２の爪部５４とを有している。この第１の
爪部５３の先端には径方向外周側から内周側に拡がる傾
斜部５３ａが形成され、第２の爪部５４の先端には径方
向内周側から外周側に拡がる傾斜部５４ａが形成されて
いる。3 is an armature, and this armature 3
Is the armature shaft 4 and this armature shaft 4
Armature core 5 with a plurality of plates stacked on top
It is composed of The armature core 5 includes a plurality of substantially V-shaped slots 5 extending in parallel with the armature shaft 4.
1, a partition wall portion 52 that separates the slots 51, a first claw portion 53 that extends in the circumferential direction from both sides of the tip of the partition wall portion 52, and a second claw portion 54. An inclined portion 53a that extends from the outer peripheral side in the radial direction to the inner peripheral side is formed at the tip of the first claw portion 53, and an inclined portion that extends from the inner peripheral side in the radial direction to the outer peripheral side is formed at the tip of the second claw portion 54. 54a is formed.
【０００９】そして、隔壁部５２の爪部５３の第１の傾
斜部５３ａは、隣接する隔壁部５２の第２の爪部５４の
傾斜部５４ａと略平行で、かつそれぞれ傾斜部５３ａと
傾斜部５４ａの先端が互いに径方向に略対向している。
なお、図２は、それぞれの第１の爪部５３、第２の爪部
５４を倒す前の状態を示す平面図であり、隔壁部５２の
第１の爪部５３と、隣接する隔壁部５２の第２の爪部５
４との間には、スロット５１にコイル６を挿入するため
の間隙が形成されている。そして、コイル６をスロット
５１内に巻線した後に、それぞれ第１、第２の爪部５
３、５４をスロット５１側に折り曲げ、図１に示す如
く、スロット５１の開口部５１のを覆うことで、アーマ
チャコア５を完成させる。その後、整流子７をアーマチ
ャシャフト４に圧入しつつ、アーマチャ５のコイル６を
整流子７に接続する。The first slanted portion 53a of the claw portion 53 of the partition wall portion 52 is substantially parallel to the slanted portion 54a of the second claw portion 54 of the adjacent partition wall portion 52, and the slanted portion 53a and slanted portion, respectively. The tips of 54a substantially face each other in the radial direction.
2 is a plan view showing a state before the first claw portion 53 and the second claw portion 54 are tilted down. The first claw portion 53 of the partition wall portion 52 and the adjacent partition wall portion 52 are shown. Second claw portion 5
4, a gap for inserting the coil 6 into the slot 51 is formed. Then, after winding the coil 6 in the slot 51, the first and second claw portions 5 are respectively formed.
The armature core 5 is completed by bending 3, 54 toward the slot 51 side and covering the opening 51 of the slot 51 as shown in FIG. Then, the coil 6 of the armature 5 is connected to the commutator 7 while press-fitting the commutator 7 into the armature shaft 4.
【００１０】なお、第１、第２の爪部５３、５４の折り
曲げ位置には、凹部５３ｂ、５４ｂがそれぞれ形成され
ており、第１、第２の爪部５３、５４を折り曲げやすく
している。従って、隣りどうしの爪部間は適切なクリア
ランスが設けられており、かつ、爪どうしに磁気ラビリ
ンスを形成することができる。従って、磁石と第１、第
２の爪部５３、５４との間の磁気抵抗変化率を低減する
ことが可能となり、その結果トルクリップルを低減する
ことができる。また、アーマチャコア５のスロット５１
をアーマチャシャフト４と平行にすることができること
により、巻線スペースの拡大が図れると共に、さらに爪
部間には適切なクリアランスを確保できる為、整流悪化
を防ぐこともできる。It should be noted that recesses 53b and 54b are formed at the bending positions of the first and second claws 53 and 54, respectively, so that the first and second claws 53 and 54 can be easily bent. . Therefore, an appropriate clearance is provided between the adjacent claws, and the magnetic labyrinth can be formed between the claws. Therefore, it is possible to reduce the rate of change in magnetic resistance between the magnet and the first and second claw portions 53 and 54, and as a result, it is possible to reduce torque ripple. Also, the slot 51 of the armature core 5
By making the armature shaft parallel to the armature shaft 4, the winding space can be expanded and an appropriate clearance can be secured between the claw portions, so that rectification deterioration can be prevented.
【００１１】さらに、爪部の倒しにより、遠心力による
コイル６の飛び出しが防止できかつ、コイル６のスロッ
ト５１への巻線時コイル６を爪部５３、５４で押圧しな
がら倒すことで、コイル６の占積率向上が図れる利点も
有している。図４に示す第２実施例では、第１実施例に
おけるアーマチャコア５の第１、第２の爪部５３、５４
の代わりに、マーチャコア５の隔壁部５２の先端から周
方向の一方側のみにのびる爪部５５と、この爪部５５の
反対側に形成され、爪５５の先端が入り込む凹部５６と
が形成されている。Further, the fall of the claw portion can prevent the coil 6 from popping out due to centrifugal force, and the coil 6 can be pushed down by the claw portions 53 and 54 while winding the coil 6 into the slot 51 of the coil 6 to push the coil 6 down. 6 also has the advantage of improving the space factor. In the second embodiment shown in FIG. 4, the first and second claw portions 53, 54 of the armature core 5 in the first embodiment.
Instead of, the claw portion 55 extending from the tip of the partition wall portion 52 of the marchia core 5 to only one side in the circumferential direction, and the concave portion 56 formed on the opposite side of the claw portion 55 and into which the tip of the claw 55 is inserted are formed. There is.
【００１２】そして、第１実施例と同様に、爪部５５の
折り曲げの前には、爪部５５は径方向外周側にのびてお
り、コイル６をスロット５１へ挿入した後、爪部５５を
スロット５１側に折り曲げることで、この爪部５５の先
端が凹部５６内に入り込み、結果として爪部５５の先端
と隔壁部５２の先端とが対向することになる。次に、図
５に示す第３実施例では、第１実施例において、第１、
第２の爪部５３，５４の先端に傾斜部５３ａ、５４ａを
形成しているのに対し、第１、第２の爪部５７、５８の
先端に段付き部５７ａ、５８ａを形成し、これら段付き
部５７ａ、５８ａの先端を互いに径方向に略対向するよ
うにしている。As in the first embodiment, before the claw 55 is bent, the claw 55 extends outward in the radial direction, and after the coil 6 is inserted into the slot 51, the claw 55 is inserted into the slot. By bending to the 51 side, the tip of the claw 55 enters the recess 56, and as a result, the tip of the claw 55 and the tip of the partition wall 52 face each other. Next, in a third embodiment shown in FIG. 5, in the first embodiment, the first,
While the inclined portions 53a and 54a are formed at the tips of the second claws 53 and 54, the stepped portions 57a and 58a are formed at the tips of the first and second claws 57 and 58, respectively. The tips of the stepped portions 57a and 58a are arranged to face each other in the radial direction.
【図１】本発明電動機の第１実施例を示す平面図であ
る。FIG. 1 is a plan view showing a first embodiment of an electric motor of the present invention.
【図２】第１実施例のアーマチャコアの第１、第２の爪
部を折り曲げる前の状態を示す平面図である。FIG. 2 is a plan view showing a state before bending the first and second claw portions of the armature core of the first embodiment.
【図３】第１実施例のアーマチャを示す半断面正面図で
ある。FIG. 3 is a front view in half section showing the armature of the first embodiment.
【図４】本発明電動機の第２実施例を示す平面図であ
る。FIG. 4 is a plan view showing a second embodiment of the electric motor of the present invention.
【図５】本発明電動機の第３実施例を示す平面図であ
る。FIG. 5 is a plan view showing a third embodiment of the electric motor of the present invention.
【図６】従来の電動機のアーマチャを示す半断面正面図
である。FIG. 6 is a front view in half section showing an armature of a conventional electric motor.
１ ヨーク ２ 磁石 ３ アーマチャ ４ アーマチャシャフト ５ アーマチャコア ５１ スロット ５２ 隔壁部 ５３ 第１の爪部 ５４ 第２の爪部 ５３ａ 傾斜部 ５４ａ 傾斜部 1 yoke 2 magnet 3 armature 4 armature shaft 5 armature core 51 slot 52 partition wall 53 first claw 54 second claw 53a slant 54a slant
Claims (4)
れ、複数のスロットを有するアーマチャコアと、 このアーマチャコアを支持するアーマチャシャフトを有
する電動機において、 前記アーマチャコアは、前記スロット間を隔てる隔壁部
と、 この隔壁部からのび前記スロットの開口部を覆う爪部と
を備え、 この爪部の一部が隣接する隔壁部の一部もしくはこの隔
壁部からのびる爪部の一部と径方向に略対向しているこ
とを特徴とする電動機。1. An electric motor having a field pole, an armature core disposed on the inner circumference of the field pole and having a plurality of slots, and an armature shaft supporting the armature core, wherein the armature core is between the slots. And a claw part extending from the partition part to cover the opening of the slot, and a part of the claw part is adjacent to a part of the partition part or a part of the claw part extending from the partition part. An electric motor which is substantially opposed to each other in a radial direction.
方向にのびる第１、第２の爪部からなることを特徴とす
る請求項１記載の電動機。2. The electric motor according to claim 1, wherein the claw portion includes first and second claw portions extending in opposite directions from the partition wall portion.
部もしくは段付き部を有していることを特徴とする請求
項２記載の電動機。3. The electric motor according to claim 2, wherein the first and second claw portions have an inclined portion or a stepped portion on the tip side thereof.
にのび、先端部が前記隔壁部と対向していることを特徴
とする請求項１記載の電動機。4. The electric motor according to claim 1, wherein the claw portion extends in only one direction from the partition wall portion, and a tip end portion faces the partition wall portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06634196A JP3541550B2 (en) | 1996-03-22 | 1996-03-22 | Electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06634196A JP3541550B2 (en) | 1996-03-22 | 1996-03-22 | Electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09261932A true JPH09261932A (en) | 1997-10-03 |
| JP3541550B2 JP3541550B2 (en) | 2004-07-14 |
Family
ID=13313068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06634196A Expired - Lifetime JP3541550B2 (en) | 1996-03-22 | 1996-03-22 | Electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3541550B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000032089A (en) * | 1998-11-12 | 2000-06-05 | 구자홍 | Rotation-resistance reduction assembly for rotor of motor |
| JP2009261244A (en) * | 1998-06-29 | 2009-11-05 | Mitsubishi Electric Corp | Motor for electric power steering apparatus |
| JP4763176B2 (en) * | 2001-08-24 | 2011-08-31 | 三菱電機株式会社 | Synchronous motor |
| CN109904941A (en) * | 2017-12-11 | 2019-06-18 | 现代自动车株式会社 | Drive motor for vehicle |
-
1996
- 1996-03-22 JP JP06634196A patent/JP3541550B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009261244A (en) * | 1998-06-29 | 2009-11-05 | Mitsubishi Electric Corp | Motor for electric power steering apparatus |
| JP2010213573A (en) * | 1998-06-29 | 2010-09-24 | Mitsubishi Electric Corp | Motor for electric power steering assembly |
| KR20000032089A (en) * | 1998-11-12 | 2000-06-05 | 구자홍 | Rotation-resistance reduction assembly for rotor of motor |
| JP4763176B2 (en) * | 2001-08-24 | 2011-08-31 | 三菱電機株式会社 | Synchronous motor |
| CN109904941A (en) * | 2017-12-11 | 2019-06-18 | 现代自动车株式会社 | Drive motor for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3541550B2 (en) | 2004-07-14 |
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