JPS5825749Y2 - permanent magnet generator - Google Patents
permanent magnet generatorInfo
- Publication number
- JPS5825749Y2 JPS5825749Y2 JP8483676U JP8483676U JPS5825749Y2 JP S5825749 Y2 JPS5825749 Y2 JP S5825749Y2 JP 8483676 U JP8483676 U JP 8483676U JP 8483676 U JP8483676 U JP 8483676U JP S5825749 Y2 JPS5825749 Y2 JP S5825749Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- permanent magnet
- electric machine
- core
- iron 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.)
- Expired
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
【考案の詳細な説明】
本考案は主回転電機に直結される永久磁石発電機の改良
に関する。[Detailed Description of the Invention] The present invention relates to an improvement of a permanent magnet generator that is directly connected to a main rotating electric machine.
従来のこの種永久磁石発電機において、その軸端を主回
転電機に取付けるには、両者に軸受を有する回転軸の一
方の軸端にカップリングを取付けてボルトで接合したり
（前者）、また軸受のない回転軸の軸端を主回転電機の
回転軸に取付けられたスリーブに焼はめにより嵌合して
接合する（後者）ようにしている。In conventional permanent magnet generators of this kind, in order to attach the shaft end to the main rotating electric machine, one can attach a coupling to one shaft end of the rotating shaft that has bearings on both ends and connect it with bolts (the former), or The shaft end of the rotating shaft without a bearing is fitted and joined to the sleeve attached to the rotating shaft of the main rotating electric machine by shrink fitting (the latter).
しかし前者による場合は軸受配管の施行を要し、回転電
機本体との軸受のクリアランスの違いによる振動発生等
の問題を含み、信頼性の面で劣る。However, in the case of the former, it is necessary to install bearing piping, and there are problems such as generation of vibration due to the difference in clearance between the bearing and the main body of the rotating electric machine, and the reliability is inferior.
また後者による場合は軸受かないので便利ではあるが、
嵌合部のカフ等による振動問題の懸念は依然として残り
且つ各部品の焼はめ作業が必要である。In addition, the latter method is convenient because there is no bearing, but
Concerns about vibration problems due to the cuffs and the like of the fitting portion still remain, and each part requires shrink-fitting work.
そこで前者によるものから軸受を取り除くようにすると
、カップリング接合のためオーバハング部が長くなり、
軸剛性が軟弱でたわみが大きくなってやはり振動問題や
固定子鉄心との接触等が懸念される。Therefore, if we remove the bearing from the former type, the overhang part will become longer due to the coupling connection.
Since the shaft rigidity is weak and the deflection is large, there are concerns about vibration problems and contact with the stator core.
本考案は上記のような事情に鑑みてなされたもので、そ
の目的は軸受を不要とし且つオーバハング部長さを減少
させて振動問題０懸念を排除することにより、十分な信
頼性のもとに主回転電機に安価に取付けることができる
製造上及び組立上簡単な永久磁石発電機を提供しようと
するものである。The present invention was developed in view of the above circumstances, and its purpose is to eliminate the need for bearings, reduce the length of the overhang, and eliminate concerns about vibration problems. It is an object of the present invention to provide a permanent magnet generator that is easy to manufacture and assemble and can be installed at low cost in a rotating electric machine.
以下図面を参照して本考案の一実施例を説明する。An embodiment of the present invention will be described below with reference to the drawings.
第１図および第２図において、１は主回転電機本体の回
転軸で、この回転軸１は軸受台２に軸受メタル３を介し
て支承されている。In FIGS. 1 and 2, reference numeral 1 denotes a rotating shaft of a main rotating electric machine body, and this rotating shaft 1 is supported by a bearing stand 2 via a bearing metal 3. As shown in FIG.
一方、４は永久磁石発電機の回転子で、この回転子４は
第２図からも明らかなように角形の永久磁石５を中心に
してその囲りに積層鉄心６を設けたものである。On the other hand, 4 is a rotor of a permanent magnet generator, and as is clear from FIG. 2, this rotor 4 has a square permanent magnet 5 at its center and a laminated iron core 6 surrounding it.
よって、積層鉄心６にはＮ極とＳ極が形成される。Therefore, a north pole and a south pole are formed in the laminated iron core 6.
この場合永久磁石５の磁極からの磁束は積層鉄心６によ
って磁気的に短絡されこの磁気漏れによって発電機の効
率が低くなる。In this case, the magnetic flux from the magnetic poles of the permanent magnet 5 is magnetically short-circuited by the laminated iron core 6, and this magnetic leakage reduces the efficiency of the generator.
したがって第２図に示したごとく積層鉄心６の隣接磁極
間を狭めて磁気漏れを少くし発電機効率を高めている。Therefore, as shown in FIG. 2, the distance between adjacent magnetic poles of the laminated core 6 is narrowed to reduce magnetic leakage and improve generator efficiency.
このような回転子４の積層鉄心６の積層方向に複数個の
貫通孔７を適宜の間隔を存してそれぞれ設け、これら貫
通孔７に両端部にねじ溝を有するスタッド８を回転子４
の両端面に設けられた押え板９を介して挿通し、その一
端部を前記主回転機本体の回転軸１の端部にねじ込むと
共に他端部をナツト１０により締付けて回転子４を主回
転電機本体に直結する。A plurality of through holes 7 are provided at appropriate intervals in the stacking direction of the laminated core 6 of the rotor 4, and studs 8 having threaded grooves at both ends are inserted into the through holes 7 to connect the rotor 4.
is inserted through the holding plates 9 provided on both end faces of the rotor 4, and its one end is screwed into the end of the rotating shaft 1 of the main rotary machine body, and the other end is tightened with a nut 10 to cause the rotor 4 to rotate in the main rotation. Directly connected to the electric machine.
また１１は積層鉄心の積層方向両端を押え板１２により
固定され且つスロット内部に電機子巻線１３を納めた固
定子鉄心で、この固定子鉄心１１を回転子４に対し所定
の間隙を存して設けると共に押え板１２のフレーム１４
の内周面にウェルドして取付ける。Reference numeral 11 denotes a stator core in which both ends in the stacking direction of the laminated core are fixed by holding plates 12 and armature windings 13 are housed inside the slots. and the frame 14 of the presser plate 12.
Attach by welding to the inner circumferential surface of the
１５はフレーム１４の両端開口部を閉塞するように備け
られたエンドカバーである。Reference numeral 15 denotes end covers provided to close openings at both ends of the frame 14.
さらに１６は回転子４の主回転電機本体とは反対側端部
の押え板９に取付けられたファン、１７はこのファン取
付側のエンドカバー１５の中央部に設けられた給気口、
１８はフレーム１４の主回転機本体寄りに設けられた排
気口である。Furthermore, 16 is a fan attached to the holding plate 9 at the end of the rotor 4 opposite to the main rotating electric machine body, 17 is an air supply port provided in the center of the end cover 15 on the fan attachment side;
18 is an exhaust port provided in the frame 14 near the main rotary machine body.
従って、かかる構成の永久磁石発電機において、回転子
４の積層鉄心６には永久磁石５によりＮ極とＳ極か第２
図に示すように形成されるので、主回転電機本体の回転
により回転子４が回転し、電機子巻線１３より発電出力
が得られることになる。Therefore, in a permanent magnet generator having such a configuration, the laminated iron core 6 of the rotor 4 has the N pole and the S pole set by the permanent magnet 5.
Since it is formed as shown in the figure, the rotor 4 rotates with the rotation of the main rotating electric machine body, and power generation output is obtained from the armature winding 13.
この場合、ファン１６によりエンドカバー１５側の給気
口１７より冷却空気が機内に導入し、回転子４と固定子
鉄心１１の間隙と固定子鉄心１１の外周を冷起してフレ
ーム１４側の排気口１８より外部へ抜ける。In this case, cooling air is introduced into the machine from the air supply port 17 on the end cover 15 side by the fan 16, cools the gap between the rotor 4 and the stator core 11, and the outer periphery of the stator core 11, and cools the space on the frame 14 side. It escapes to the outside through the exhaust port 18.
このように本考案では、回転子４の構造として角形の永
久磁石５を中心にその囲りに積層鉄心６を設けるように
したので、磁石容量が大きくでき、高速用に適したもの
となる。As described above, in the present invention, the structure of the rotor 4 is such that the laminated iron core 6 is provided around the rectangular permanent magnet 5, so that the magnet capacity can be increased and the rotor 4 is suitable for high-speed applications.
また主回転電機本体の回転軸１との接合も積層鉄心６に
設けられた積層方向に抜ける貫通孔にスタッド８を挿通
してねじ込みにより回転軸１に結合すると共にナツト１
０により締付は固定するようにしたので、回転軸１との
機械的結合強度が十分得られ、振動問題の懸念を排除す
ることができ、また積層鉄心６の締付けとして兼用する
ことができる。In addition, to connect the main rotating electrical machine main body to the rotating shaft 1, the stud 8 is inserted into a through hole provided in the laminated core 6 and extends in the stacking direction, and the stud 8 is screwed into the rotating shaft 1.
Since the tightening is fixed at 0, sufficient mechanical coupling strength with the rotating shaft 1 can be obtained, vibration problems can be eliminated, and it can also be used for tightening the laminated iron core 6.
さらに高速用に適用するため、角形の永久磁石５を回転
子４の中心に設けても簡単に回転軸１に結合できるので
、安価になる。Furthermore, for high-speed applications, even if a rectangular permanent magnet 5 is provided at the center of the rotor 4, it can be easily coupled to the rotating shaft 1, resulting in low cost.
なお、本考案は上記し且つ図面に示す実施例のみに限定
されず、その要旨を変更しない範囲内で種々変形して実
施できるものである。The present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with various modifications without changing the gist thereof.
以上述べたように本考案によれば、主回転電機本体の回
転軸に十分な信頼性のもとに安価に直結できる高速大容
量の永久磁石発電機が提供できる。As described above, according to the present invention, it is possible to provide a high-speed, large-capacity permanent magnet generator that can be directly connected to the rotating shaft of the main rotating electric machine body at low cost with sufficient reliability.
第１図は本考案による永久磁石発電機の一実施例を示す
断面図、第２図は右半分を第１図のＡＡ線に、左半分の
上部を第１図のＢ−Ｂ線に沿ってそれぞれ切断し、また
下部を第１図をＣ矢方向から見た図である。
１・・・・・・主回転電機本体の回転軸、２・・・・・
・軸受台、３・・・・・・軸受メタル、４・・・・・・
回転子、５・・・・・・永久磁石、６・・・・・・積層
鉄心、７・・・・・・貫通穴、８・・・・・・スタット
、９・・・・・・押え板、１０・・・・・・ナツト、１
１・・・・・固定子鉄心、１２・・・・・・押え板、１
３・・・・・・電機子巻線、１４・・・・・・フレーム
、１５・・・・・・エンドカバー。Fig. 1 is a sectional view showing one embodiment of the permanent magnet generator according to the present invention, and Fig. 2 shows the right half taken along line AA in Fig. 1, and the upper left half taken along line BB in Fig. 1. FIG. 2 is a view of the lower part of FIG. 1 viewed from the direction of arrow C. 1...Rotating shaft of the main rotating electric machine body, 2...
・Bearing stand, 3...Bearing metal, 4...
Rotor, 5... Permanent magnet, 6... Laminated core, 7... Through hole, 8... Stud, 9... Holder Board, 10...Natsuto, 1
1... Stator core, 12... Holding plate, 1
3... Armature winding, 14... Frame, 15... End cover.
Claims (1)
、この積層鉄心の両端部に押え板を配置した回転子と、
この回転子を包囲して設けられ且つその両端開口部をエ
ンドカバーにより閉塞されたフレームと、このフレーム
の内周面に前記回転子に対して所定の間隙を介して取付
けられ電機子巻線を備えてなる固定子鉄心とから成り、
前記回転子の積層鉄心および押え板に複数個の積層方向
に抜ける貫通穴を設け、これらの貫通穴に両端部にねじ
溝を形成したスタッドを挿通してその一端部を主回転電
機本体の回転軸端にねじ込みにより結合すると共に他端
部をナツトにより締付は固定した永久磁石発電部A rotor having a laminated iron core surrounding a square permanent magnet, and holding plates placed at both ends of the laminated iron core;
A frame is provided surrounding the rotor and has both end openings closed by end covers, and an armature winding is attached to the inner circumferential surface of the frame with a predetermined gap between the rotor and the armature winding. It consists of a stator core equipped with
A plurality of through-holes are provided in the laminated core and the holding plate of the rotor that extend in the lamination direction, and studs having threaded grooves at both ends are inserted into these through-holes, and one end of the stud is inserted into the rotation of the main rotating electric machine body. Permanent magnet power generation unit that is connected to the shaft end by screwing and the other end is tightened and fixed with a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8483676U JPS5825749Y2 (en) | 1976-06-28 | 1976-06-28 | permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8483676U JPS5825749Y2 (en) | 1976-06-28 | 1976-06-28 | permanent magnet generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS532611U JPS532611U (en) | 1978-01-11 |
| JPS5825749Y2 true JPS5825749Y2 (en) | 1983-06-02 |
Family
ID=28567047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8483676U Expired JPS5825749Y2 (en) | 1976-06-28 | 1976-06-28 | permanent magnet generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5825749Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5287903B2 (en) * | 2011-02-28 | 2013-09-11 | 株式会社安川電機 | Rotor unit, wind power generation system, rotating electric machine, generator, and assembling method of rotating electric machine |
-
1976
- 1976-06-28 JP JP8483676U patent/JPS5825749Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS532611U (en) | 1978-01-11 |
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