JPS6062860A - Rotor of magnet rotary type motor - Google Patents
Rotor of magnet rotary type motorInfo
- Publication number
- JPS6062860A JPS6062860A JP58168630A JP16863083A JPS6062860A JP S6062860 A JPS6062860 A JP S6062860A JP 58168630 A JP58168630 A JP 58168630A JP 16863083 A JP16863083 A JP 16863083A JP S6062860 A JPS6062860 A JP S6062860A
- Authority
- JP
- Japan
- Prior art keywords
- skirt portion
- magnet
- rotor
- rotor housing
- housing
- 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.)
- Pending
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 230000002787 reinforcement Effects 0.000 claims description 5
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は磁石回転型電動機のロータに関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotor for a magnet rotating electric motor.
従来例の構成とその問題点
従来、この種の磁石回転型電動機においては、第１図、
第２図に示すように、回転軸１を嵌着した、底部２ａと
一体のスカート部２ｂを有する非磁性体からなるロータ
ハウジング２［、円環状ヨーり３を介して複数個の磁石
４を軸方向に複数極となるよう円環状に配設固定してい
る。前記回転軸１．ロータハウジング２．ヨーク３．お
よび磁石４を総称してロータと呼ぶ。Conventional structure and its problems Conventionally, in this type of magnet rotating electric motor, Fig. 1,
As shown in FIG. 2, a rotor housing 2 is made of a non-magnetic material and has a bottom portion 2a and an integral skirt portion 2b, into which a rotating shaft 1 is fitted, and a plurality of magnets 4 are connected via an annular yaw 3. It is arranged and fixed in an annular shape so that there are multiple poles in the axial direction. The rotating shaft 1. Rotor housing 2. York 3. and the magnets 4 are collectively called a rotor.
５はトロイダル巻きしたコアに軸方向にスロットを設け
てコイル６を巻回したステータで、前記磁石４に対向し
て配設されている。７は前記ステータ６とベアリング８
を保持するハウジングで、前記ベアリング８は前記回転
軸１を受けている。A stator 5 has a toroidally wound core provided with slots in the axial direction and a coil 6 wound around the stator, and is disposed opposite the magnet 4. 7 is the stator 6 and bearing 8
The bearing 8 receives the rotating shaft 1 in the housing.
９は前記磁石４の磁極を検出するセンサーであり、前記
センサー９の信号に対応して前記ステータ６に回転磁界
を生じさせる制御回路（図示せず）を備えている。１０
はスラスト止めである。A sensor 9 detects the magnetic pole of the magnet 4, and includes a control circuit (not shown) that generates a rotating magnetic field in the stator 6 in response to a signal from the sensor 9. 10
is a thrust stop.
上記構成におけるロータハウジング２の重要す働きのう
ちひとつは、ステータ６に生じた回転磁界に対応して磁
石４が受ける回転力を回転軸１に伝えることである。も
うひとつは、複数個の磁石４が回転に判い受ける遠・Ｕ
力を受け止めることである。そのためロータハウジング
２のスカート部２ｂには引張応力とし゛Ｃ１自重の遠心
力による引張応力に加えて、磁石４の遠心力によっても
たらされる引張応力をも受けることになる。故にロータ
ハウジング２自身による残留歪を残さない比例限応力の
値より小さい応力にしか耐えられない。One of the important functions of the rotor housing 2 in the above configuration is to transmit the rotational force received by the magnets 4 in response to the rotating magnetic field generated in the stator 6 to the rotating shaft 1. The other is the far-U
It is about accepting power. Therefore, the skirt portion 2b of the rotor housing 2 is subjected to tensile stress caused by the centrifugal force of the magnet 4 in addition to the tensile stress caused by the centrifugal force of C1's own weight. Therefore, the rotor housing 2 can withstand only a stress smaller than the proportional limit stress that does not leave any residual strain.
更に前記残留歪を残さない応力値（比例限）を越えて使
用すると、第３図に示すようにロータハウジング２のス
カート部２ｂが先端部２ｄの方から拡がってくる。スカ
ート部２ｂのつけ根２ｃの部分は、底部２ａと一体とな
っているため、先端部２ｄの拡がりと比べてほとんど拡
がらない。そのため、ロータハウジング２のスカート部
２ｂと磁石４、あるいは底部２ａと磁石４との間に隙間
が生じ、磁石４の遠心力をロータハウジング２のスカー
ト部２ｂで受け止められなくなり、磁石４が飛び出して
しまうという問題があった。Further, if the rotor housing 2 is used at a stress value exceeding the stress value (proportional limit) that does not leave any residual strain, the skirt portion 2b of the rotor housing 2 will expand from the tip portion 2d as shown in FIG. Since the base 2c of the skirt portion 2b is integrated with the bottom portion 2a, it hardly expands compared to the expansion of the tip portion 2d. Therefore, a gap is created between the skirt portion 2b of the rotor housing 2 and the magnet 4, or between the bottom portion 2a and the magnet 4, and the centrifugal force of the magnet 4 cannot be received by the skirt portion 2b of the rotor housing 2, causing the magnet 4 to jump out. There was a problem with putting it away.
発明の目的
本発明はこのような従来の問題を解消し、より高い遠心
力にも耐え、かつ磁石が飛び出さないようにした磁石回
転型電動機のロータを提供するものである。OBJECTS OF THE INVENTION The present invention solves these conventional problems and provides a rotor for a magnet-rotating electric motor that can withstand higher centrifugal force and prevents magnets from flying out.
発明の構成
本発明の磁石回転型電動機のロータは、回転軸を嵌着し
た底部と一体のスカート部を有するｐ−タハウジングと
、ロータハウジングに保持される複数個の磁石と、底部
とスカート部を有する円環状補強体とを備え、前記ロー
タハウジングのスカート部内面と円環状補強体のスカー
ト部の外面を嵌合し、ロータハウジングと円環状補強体
間で磁石を保持したもので、磁石の保持強度を高めると
ともに磁石の飛び出しを防止したものである。Structure of the Invention The rotor of the magnet rotating electric motor of the present invention includes a rotor housing having a bottom portion into which a rotating shaft is fitted and an integral skirt portion, a plurality of magnets held by the rotor housing, the bottom portion and the skirt portion. The inner surface of the skirt portion of the rotor housing and the outer surface of the skirt portion of the annular reinforcement body are fitted, and a magnet is held between the rotor housing and the annular reinforcement body. This increases the holding strength and prevents the magnet from flying out.
実施例の説明
以下、添付図面に基づいて本発明の一実施例について説
明する。第４図はロータのみを示しているが、ステータ
は従来のものと同様であるので省略する。図において１
は回転軸、２は前記回転軸１を嵌着した底部２ａと一体
のスカート部２ｂを有する非磁性体からなるロータハウ
ジングで、円環状ヨーク３を介し、複数個の磁石４を軸
方向に複数極となるよう円環状に配設固定している。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. Although FIG. 4 only shows the rotor, the stator is omitted because it is the same as the conventional one. In the figure 1
2 is a rotor housing made of a non-magnetic material having a rotating shaft, a bottom portion 2a into which the rotating shaft 1 is fitted, and a skirt portion 2b integral with the rotor housing. They are arranged and fixed in an annular shape to serve as poles.
１１は底部１１ａと一体のスカート部１１１Ｐを有する
円環状補強体で、前記ロータハウジング２のスカート部
２ｂ内面と円環状補強体１１のスカート部１１ｂの外面
が嵌合するように、ロータハウジング２の底部２ａと対
向する側から磁石４を覆うように挿入回着している。な
お、円環状ヨーク３はロータハウジング２の底部２ａで
兼用してもさしつかえない。Reference numeral 11 denotes an annular reinforcing body having a skirt portion 111P integral with the bottom portion 11a. It is inserted and rotated so as to cover the magnet 4 from the side facing the bottom 2a. Note that the annular yoke 3 may also be used as the bottom portion 2a of the rotor housing 2.
上記構成において、ロータハウジングの働き、即ち複数
個の磁石４が回転に伴い受ける遠・レカを受け止める働
きのメカニズムについて説明する。In the above configuration, the function of the rotor housing, that is, the mechanism of the function of receiving the distance and distance received by the plurality of magnets 4 as they rotate will be explained.
磁石４の受ける遠・Ｄカは、引張応力として円環状補強
体１１が受け止めようとする。しかし残留歪を残さない
比例限の応力値よりも高い引張応力であるとき、円環状
補強体１１のスカート部１１ｂは先端部１１（ｉの方か
ら拡がろうとする。ところが円環状補強体１１のスカー
ト部１１ｂの外側には、ロータハウジング２のスカート
部２ｂが嵌合固着されており、かつ円環状補強体１１の
スカー）９１ ｌ ｂの先端部は、ロータハウジング２
のスカート部２ｂのつけ根２ｃの部分で受けている。The annular reinforcing body 11 tries to receive the far and D forces received by the magnet 4 as tensile stress. However, when the tensile stress is higher than the stress value of the proportional limit that does not leave any residual strain, the skirt portion 11b of the annular reinforcement 11 tries to expand from the tip 11 (i). The skirt portion 2b of the rotor housing 2 is fitted and fixed to the outside of the skirt portion 11b, and the tip of the skirt 91b of the annular reinforcing body 11 is connected to the rotor housing 2.
It is received at the base 2c of the skirt portion 2b.
このように磁石４の受ける遠心力は、まず円環状補強体
１１のスカー？８１ ｌ ｂで引張応力として受ける。In this way, the centrifugal force that the magnet 4 receives is first caused by the scar of the annular reinforcing body 11. It is received as a tensile stress at 81 lb.
そしてスカート部ｊ１ｂの先端部１１１１は、ロータハ
ウジング２のスカート部２ｂの最も強度の高いつけ根２
Ｃの部分に嵌合固着されているため、仮りに前記円環状
補強体１１のスカート部１１ｂの先端部１１（ｉが拡が
るような力を受けても、前記ロータハウジング２のスカ
ート部２ｂのっけ根２Ｃの部分によって押えられ拡がる
ことはなく、強度が高くなる。まだ円環状補強体１１
′のスカート部１１ｂのつけ根部分は強度が大であるた
め、ロータハウジング２の先端部２ｄが拡がることはな
い。更に円環状補強体１１の底部１１Ｌとロータハウジ
ング２の底部２ａとで、ヨーク３と磁石４を挾み込むよ
うにして保持しているため、磁石自身の遠心力により、
磁石４が飛び出してしまうことを防いでいる。The tip 1111 of the skirt portion j1b is the strongest base 2 of the skirt portion 2b of the rotor housing 2.
Since it is fitted and fixed to the part C, even if the tip part 11 (i) of the skirt part 11b of the annular reinforcing body 11 is subjected to a force that causes it to expand, the base of the skirt part 2b of the rotor housing 2 It is held down by the part 2C and does not expand, increasing the strength.
Since the root portion of the skirt portion 11b has a high strength, the tip portion 2d of the rotor housing 2 will not expand. Furthermore, since the yoke 3 and the magnet 4 are held between the bottom 11L of the annular reinforcing body 11 and the bottom 2a of the rotor housing 2, the centrifugal force of the magnet itself causes
This prevents the magnet 4 from flying out.
発明の効果
上記実施例から明らかなように、本発明の磁石回転型電
動機のロータは、底部とスカート部を有する円環状補強
体を用いたことにより、ロータハウジングにおいて残留
歪を残さない比例限の値をより高くすることができ、更
に磁石が磁石自身の遠・Ｕ力により飛びだすことがなく
なるという効果が得ている。Effects of the Invention As is clear from the above embodiments, the rotor of the magnet-rotating electric motor of the present invention has a proportional limit that does not leave residual strain in the rotor housing by using an annular reinforcing body having a bottom part and a skirt part. This has the effect that the value can be made higher and that the magnet will not fly out due to its own far/U force.
第１図は従来の磁石回転型電動機の一例を示す断面図、
第２図は同電動機のロータの断面図、第３図は第２図の
ロータの異常状態を示す断面図、第４図は本発明の一実
施例のロータの断面図である。
１・・・・回転軸、２・・・・・・ロータハウジング、
２ａ・・・・・・底部、２ｂ・・・・・・スカート部、
４・・・・・・磁石、１１・・・・・・円環状補強体、
１１１Ｌ・・・・・・底部、１１ｂ・・・・・・スカー
ト部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第２
図
図
第４図Figure 1 is a sectional view showing an example of a conventional magnet rotating electric motor.
2 is a sectional view of the rotor of the same electric motor, FIG. 3 is a sectional view showing an abnormal state of the rotor of FIG. 2, and FIG. 4 is a sectional view of the rotor of an embodiment of the present invention. 1...Rotating shaft, 2...Rotor housing,
2a...Bottom part, 2b...Skirt part,
4... Magnet, 11... Annular reinforcement body,
111L...Bottom part, 11b...Skirt part. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 4
Claims (1)
タハウジングと、ロータハウジングに保持される複数個
の磁石と、底部とスカート部を有する円環状補強体とを
備え、前記ロータハウジングのスカート部内面と円環状
補強体のスカート部の外面を嵌合し、ロータハウジング
と円環状補強体間で磁石を保持した磁石回転型電動機の
ロータ。The skirt of the rotor housing includes a rotor housing having a bottom portion and an integral skirt portion into which a rotating shaft is fitted, a plurality of magnets held by the rotor housing, and an annular reinforcement body having a bottom portion and a skirt portion. A rotor for a magnet-rotating electric motor in which the inner surface of the part and the outer surface of the skirt part of the annular reinforcing body fit together, and a magnet is held between the rotor housing and the annular reinforcing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58168630A JPS6062860A (en) | 1983-09-13 | 1983-09-13 | Rotor of magnet rotary type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58168630A JPS6062860A (en) | 1983-09-13 | 1983-09-13 | Rotor of magnet rotary type motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6062860A true JPS6062860A (en) | 1985-04-11 |
Family
ID=15871606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58168630A Pending JPS6062860A (en) | 1983-09-13 | 1983-09-13 | Rotor of magnet rotary type motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6062860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005269778A (en) * | 2004-03-18 | 2005-09-29 | Equos Research Co Ltd | Axial-gap rotating electric machine |
-
1983
- 1983-09-13 JP JP58168630A patent/JPS6062860A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005269778A (en) * | 2004-03-18 | 2005-09-29 | Equos Research Co Ltd | Axial-gap rotating electric machine |
| JP4529500B2 (en) * | 2004-03-18 | 2010-08-25 | 株式会社エクォス・リサーチ | Axial gap rotating electric machine |
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