JPS60216753A - Permanent magnet synchronous motor - Google Patents
Permanent magnet synchronous motorInfo
- Publication number
- JPS60216753A JPS60216753A JP59070816A JP7081684A JPS60216753A JP S60216753 A JPS60216753 A JP S60216753A JP 59070816 A JP59070816 A JP 59070816A JP 7081684 A JP7081684 A JP 7081684A JP S60216753 A JPS60216753 A JP S60216753A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- yoke
- synchronous motor
- magnet synchronous
- magnets
- 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
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
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset 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】
〔発明の利用分野〕
本発明は永久磁石を回転子に使用した永久磁石同期モー
タの回転子の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to the structure of a rotor of a permanent magnet synchronous motor using permanent magnets in the rotor.
同期モータは運転中の回転数が常に一定である所より用
途も多く、特に小形モータでは永久磁石を用いた永久磁
石同期モータが多く作られ、タイ＼
５ ７−や各種制御用モータとして使用されている。Synchronous motors have many uses compared to motors where the number of revolutions during operation is always constant. Especially in small motors, permanent magnet synchronous motors using permanent magnets are often manufactured, and are used as motors for tie-backs and various types of control. ing.
しかし永久磁石同期モータはその製造方法より小形の誘
導電動機に使用されているアルミダイカストのかご型ロ
ータより高価になっていた。しかるに近年のフェライト
磁石の普及により比較的安価な磁石を得ることが出来る
ようになったが、このフェライト磁石は機械的強度が極
めて弱く、特に衝撃力に対して鋼材より劣るものである
。However, the manufacturing method of permanent magnet synchronous motors has made them more expensive than the aluminum die-cast squirrel cage rotors used in small induction motors. However, with the spread of ferrite magnets in recent years, it has become possible to obtain relatively inexpensive magnets, but these ferrite magnets have extremely low mechanical strength, and are inferior to steel materials in particular with respect to impact forces.
したがって実用に際しては鋼板等で保役して使用されて
いた。このため磁石と固定子との隙間が広く磁気洩れが
多く、鋼板に生じるうず電流による損失が発生する等の
欠点があった。Therefore, in practical use, they were protected by steel plates, etc. For this reason, there were drawbacks such as a wide gap between the magnet and the stator, a large amount of magnetic leakage, and losses due to eddy currents generated in the steel plates.
本発明はかかる欠点を改良し、固定子と永久磁石との隙
間を小さくすると同時に、固定子と永久磁石間にあった
鋼板等の補強材を廃し損失を少な（した永久磁石同期モ
ータを提供することにある。The present invention aims to improve such drawbacks and provide a permanent magnet synchronous motor that reduces the gap between the stator and the permanent magnets, and at the same time eliminates the reinforcing material such as a steel plate between the stator and the permanent magnets, thereby reducing losses. be.
即ち、本発明の永久磁石同期モータは、永久磁石の固定
と表面保護を兼ねて補強材を複合した合成樹脂により一
体成形し、永久磁石をヨークに固定することにより固定
子と永久磁石との隙間を小さくすると同時に、固定子と
永久磁石間にあった鋼板等の補強材を廃し損失を無くす
ることを図つだものである。That is, the permanent magnet synchronous motor of the present invention is integrally molded with a synthetic resin compounded with a reinforcing material to both fix the permanent magnet and protect the surface, and by fixing the permanent magnet to the yoke, the gap between the stator and the permanent magnet is reduced. At the same time, the aim is to eliminate losses by eliminating reinforcing materials such as steel plates between the stator and permanent magnets.
以下本発明の実施例を図によって説明する。第１図に本
発明の１実施例を示す永久磁石同期モータの回転子の縦
断面図を示し、第２図に第１図Ａ−Ａ’部の横断面図を
示す。■はシャフト、２はヨーク、３は永久磁石、４は
補強材を複合した合成樹脂である。即ちシャフト１にヨ
ーク２を挿入固定した後、複数個の永久磁石３をヨーク
２の外周上に配置した後、永久磁石の外周上に補強材を
複合した合成樹脂層を一体成形し完成させる。したがっ
て複数個の永久磁石３は補強材を複合した合成樹脂４に
よって強固にヨーク２に固定することが出来るものであ
り、固定子との隙間を小さく出来磁気洩れが少なくなる
と同時に、固定子と永久磁石３との間に鋼板等の磁気洩
れを生じる金属が無いので損失が極めて少なくなるとい
う利点がある。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a longitudinal cross-sectional view of a rotor of a permanent magnet synchronous motor showing one embodiment of the present invention, and FIG. 2 shows a cross-sectional view taken along the line AA' in FIG. 1. 2 is a shaft, 2 is a yoke, 3 is a permanent magnet, and 4 is a synthetic resin compounded with a reinforcing material. That is, after inserting and fixing the yoke 2 to the shaft 1, a plurality of permanent magnets 3 are arranged on the outer periphery of the yoke 2, and then a synthetic resin layer compounded with a reinforcing material is integrally molded on the outer periphery of the permanent magnets. Therefore, the plurality of permanent magnets 3 can be firmly fixed to the yoke 2 by the synthetic resin 4 compounded with a reinforcing material, which reduces the gap with the stator, reduces magnetic leakage, and at the same time permanently connects the stator to the yoke. Since there is no metal such as a steel plate that causes magnetic leakage between the magnet 3 and the magnet 3, there is an advantage that loss is extremely reduced.
本発明の永久磁石同期モータは円筒形ヨークの外周上に
永久磁石を複数個配置し、永久磁石の外周面に補強材を
複合した合成樹脂層を一体に成形し、永久磁石を円筒形
ヨークに固着させる構造としたので、複数個の永久磁石
が補強材を複合した合成樹脂によって強固に固定される
効果が得られると共に回転子と固定子との隙間を小さく
出来るため、磁気洩れが少なくなるという効果がある。The permanent magnet synchronous motor of the present invention has a plurality of permanent magnets arranged on the outer periphery of a cylindrical yoke, a synthetic resin layer compounded with a reinforcing material is integrally molded on the outer periphery of the permanent magnet, and the permanent magnets are attached to the cylindrical yoke. Due to the fixed structure, multiple permanent magnets are firmly fixed by the synthetic resin compounded with reinforcing material, and the gap between the rotor and stator can be reduced, reducing magnetic leakage. effective.
又固定子と永久磁石との間に鋼板等の磁気洩れを生ずる
金属が無いので損失が極めて少ない効果が得られる。Furthermore, since there is no metal such as a steel plate between the stator and the permanent magnet that causes magnetic leakage, an effect of extremely low loss can be obtained.
第１図は本発明実施例を示す永久磁石同期モータの回転
子縦断面図、第２図は第１図のＡ −Ａ’線断面図であ
る。FIG. 1 is a longitudinal sectional view of a rotor of a permanent magnet synchronous motor showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line A-A' in FIG.
Claims (1)
周上に永久磁石を複数個配置し、補強材を複合した合成
樹脂により一体成形し、永久磁石の外周面上に補強材を
複合した合成樹脂層を形成させ、永久磁石を円筒ヨーク
に固着させることを特徴とする永久磁石同期モータ。1. In a permanent magnet synchronous motor, multiple permanent magnets are arranged on the outer circumference of a cylindrical yoke, which is integrally molded with a synthetic resin compounded with a reinforcing material, and the reinforcing material is compounded on the outer circumferential surface of the permanent magnet. A permanent magnet synchronous motor characterized by forming a synthetic resin layer and fixing a permanent magnet to a cylindrical yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59070816A JPS60216753A (en) | 1984-04-11 | 1984-04-11 | Permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59070816A JPS60216753A (en) | 1984-04-11 | 1984-04-11 | Permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60216753A true JPS60216753A (en) | 1985-10-30 |
Family
ID=13442473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59070816A Pending JPS60216753A (en) | 1984-04-11 | 1984-04-11 | Permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60216753A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997043814A1 (en) * | 1996-05-15 | 1997-11-20 | Empresa Brasileira De Compressores S/A. - Embraco | A coiled rotor cover for an electric motor |
| JP2008029153A (en) * | 2006-07-24 | 2008-02-07 | Toyota Motor Corp | Rotor for high-speed rotation motor |
| JP2013009553A (en) * | 2011-06-27 | 2013-01-10 | Toyota Central R&D Labs Inc | Rotor of rotary electric machine |
-
1984
- 1984-04-11 JP JP59070816A patent/JPS60216753A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997043814A1 (en) * | 1996-05-15 | 1997-11-20 | Empresa Brasileira De Compressores S/A. - Embraco | A coiled rotor cover for an electric motor |
| JP2008029153A (en) * | 2006-07-24 | 2008-02-07 | Toyota Motor Corp | Rotor for high-speed rotation motor |
| JP2013009553A (en) * | 2011-06-27 | 2013-01-10 | Toyota Central R&D Labs Inc | Rotor of rotary electric machine |
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