JP2927840B2 - Rotor of 2 stator induction motor - Google Patents
Rotor of 2 stator induction motorInfo
- Publication number
- JP2927840B2 JP2927840B2 JP30063489A JP30063489A JP2927840B2 JP 2927840 B2 JP2927840 B2 JP 2927840B2 JP 30063489 A JP30063489 A JP 30063489A JP 30063489 A JP30063489 A JP 30063489A JP 2927840 B2 JP2927840 B2 JP 2927840B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- hollow
- casting
- cores
- hollow body
- 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 - Fee Related
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- Induction Machinery (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は２固定子構成の誘導電動機に係り特に２個の
回転子コアを有して一体的に形成する２固定子誘導電動
機の回転子に関する。Description: BACKGROUND OF THE INVENTION The present invention relates to an induction motor having a two-stator configuration, and more particularly to a two-stator induction motor rotor integrally formed with two rotor cores. About.
２固定子構成の誘導電動機の構成と作用の一部につい
ては本出願人が先願の特願昭61−128314号として詳細な
説明を行っている。これらの誘導電動機の回転子は、２
個の固定子に対峙して２個の回転子コアを必要とするこ
とから、回転子コア間における回転子導体の接続に様々
な手段が講じられてきた。つまり回転子コアをそれぞれ
鋳込んで回転子コア間に別の導体を固着または嵌合した
もの、あるいは、回転子コア間の導体だけを一体的に形
成して回転子コア間のスロット孔に対して設け、回転子
コアの導体の鋳込みと同時に溶着するものなどがある
が、一体的回転子の形成のためいずれも鋳込みを行うと
共に別の製造工程を必要とし、たとえば固着、嵌合、溶
着などである。また鋳込みと同時に溶着するものは、溶
解した鋳込み材の鋳込み温度では機械的な強度を保障で
きるだけの溶着の強度は確保できるものではなかった。The applicant has described in detail the configuration and part of the operation of an induction motor having a two-stator configuration as Japanese Patent Application No. 61-128314. The rotor of these induction motors is 2
Since two rotor cores are required in opposition to the stators, various means have been taken to connect the rotor conductors between the rotor cores. In other words, the rotor cores are each cast and another conductor is fixed or fitted between the rotor cores, or only the conductors between the rotor cores are integrally formed and slotted between the rotor cores. Some of them are welded simultaneously with the casting of the conductor of the rotor core. However, in order to form an integral rotor, both casting and separate manufacturing steps are required, such as fixing, fitting, welding, etc. It is. Further, in the case of welding at the same time as casting, it was not possible to secure the strength of welding that could guarantee mechanical strength at the casting temperature of the molten casting material.
たとえば、２固定子構成の誘導電動機の回転子には、
２個の回転子コアに連通状に回転子導体を装設したもの
と、更にこれに加えて２固定子に対峙しない回転子コア
間において前記回転子導体間を連結材で連結したものと
があり、２個の回転子コアに回転子導体を連通状に装設
して一体的回転子とする場合、回転子コア間における導
体の装設あるいは回転子コア間における導体と回転子コ
アの導体との固着等により工数が増加するものであっ
た。For example, the rotor of an induction motor having a two-stator configuration includes:
Two rotor cores are provided with rotor conductors in communication with each other, and in addition, two rotor cores which are not opposed to the two stator cores are connected by a connecting material between the rotor conductors. In the case where two rotor cores are provided with rotor conductors in communication with each other to form an integral rotor, a conductor is provided between the rotor cores or a conductor between the rotor cores and a conductor of the rotor core. And the number of man-hours is increased due to sticking to the above.
また回転子コア間の隣接する回転子導体間を相互に連
結する連結材を設ける場合、連結材が回転子導体の外周
に突出する形状のものは、回転子導体に溶接等の手段に
より固着するかあるいは鋳込みの金型を複雑にして回転
子コア間の導体と連結材とを同時に形成できるようにす
るため、工数が増加したり金型が複雑で高価となってい
た。とくに溶接により固着する場合、２固定子誘導電動
機を低速域で使用する時、電動機の特性から連結材が発
熱することがあり、前記固着部分が発熱によって歪を発
生して運転中に固着部分または固着周辺にクラックを生
じて機械強度を著しく低下することがあった。このため
鋳込みで一体的に連結材を形成することが望ましいもの
の前記のごとく金型費、工数が嵩むものとなる。In the case where a connecting member for connecting the adjacent rotor conductors between the rotor cores is provided, if the connecting member protrudes to the outer periphery of the rotor conductor, the connecting member is fixed to the rotor conductor by welding or the like. Or, in order to simultaneously form the conductor between the rotor cores and the connecting member by complicating the casting mold, the man-hour has been increased and the mold has been complicated and expensive. In particular, when the stator is fixed by welding, when the two-stator induction motor is used in a low-speed range, the connecting member may generate heat due to the characteristics of the motor. In some cases, cracks were formed in the vicinity of the fixing and the mechanical strength was significantly reduced. For this reason, it is desirable to integrally form the connecting member by casting, but as described above, the die cost and the number of steps are increased.
また回転子導体の鋳込み材は一般的にアルミニウムを
使用するが、アルミニウムは成型のため熱処理すると、
表面に酸化被膜を生じる。この酸化被膜の生じたもの
は、別個のアルミニウムの高温の鋳込み材に触れても完
全な電気的導通は得られず、この点から鋳込みを二度に
分けて回転子導体を形成することもできなかった。In general, aluminum is used for the casting material of the rotor conductor, but aluminum is heat-treated for molding,
An oxide film is formed on the surface. When the oxide film is formed, even if it comes into contact with a separate high-temperature cast material of aluminum, complete electrical continuity cannot be obtained.From this point, casting can be divided twice to form a rotor conductor. Did not.
上記のことから、一般に行われる誘導電動機の回転子
コアの鋳込みと同様、鋳込みと同時に２個の回転子コア
を有する一体的な回転子に形成して、工数の削減と、そ
れにより製造コストの低下を計ると共に、機械的強度を
確保した２個の回転子コアを有する一体的回転子の提供
を技術的課題とするものである。From the above, similar to the casting of a rotor core of an induction motor, which is generally performed, the casting is formed at the same time as the casting into an integrated rotor having two rotor cores, thereby reducing man-hours and thereby reducing manufacturing costs. An object of the present invention is to provide an integrated rotor having two rotor cores, which measures the reduction and secures mechanical strength.
本発明によると複数個のスロットを開設した鋼板を積
層して形成した２個の回転子コア群を同軸上に任意間隔
を設けて並設し、貫通した中空部を有する中空体を前記
２個の回転子コア群間に複数個設けて、前記中空体の中
空部を介して２個の回転子コア群の複数個のスロットを
連通させ、該中空体はそれぞれに中空部から外部に通じ
る孔を備え、前記回転子コア群間と異なる両端の複数個
のスロット孔よりアルミニウムを鋳込んで、スロットに
回転子導体と、回転子コア群間と異なる両端に短絡環と
を形成すると同時に隣接する複数個の中空体の孔を相互
に連結して一体的なかご形回転子を形成したことにより
前記技術的課題を解決するための手段とした。According to the present invention, two rotor core groups formed by laminating steel plates provided with a plurality of slots are juxtaposed coaxially at arbitrary intervals, and the two hollow bodies having hollow portions penetrating therethrough are provided. A plurality of slots of the two rotor core groups communicate with each other through the hollow portion of the hollow body, and each of the hollow bodies has a hole communicating with the outside from the hollow portion. Aluminum is cast from a plurality of slot holes at both ends different from the rotor core groups, and the rotor conductors are formed in the slots, and short-circuit rings are formed at both ends different from the rotor core groups and are adjacent to each other at the same time. A plurality of holes of the hollow body are connected to each other to form an integral cage rotor, which is a means for solving the above technical problem.
また、鋳込みする中空体の中空部内に、ロウ材からな
るシート材を設けたことにより課題を解決するための手
段とした。Further, a means for solving the problem is provided by providing a sheet material made of a brazing material in the hollow portion of the hollow body to be cast.
本発明の作用は以下の通りである。二個の回転子コア
群を同軸上に任意間隔を設けて並設し、並設した回転子
コア群間において対峙する回転子コアのスロット孔に連
通して、貫通した中空部を有する複数個の中空体を設け
て、二個の回転子コア群のスロット孔と中空体とを連通
状に連結し、回転子コアのスロット孔の回転子コア間と
異なる他方端よりアルミニウムを鋳込むので、中空部を
有する中空体は一方の回転子コアのスロット孔から他方
の回転子コアのスロット孔への鋳込み材の導管となり、
鋳込みと同時に二個の回転子コアのスロット孔と中空体
とを連通する回転子導体が形成されると共に二個の回転
子コアは一体的回転子に形成される。The operation of the present invention is as follows. Two rotor core groups are arranged side by side at an arbitrary interval coaxially, and a plurality of rotor core groups having a hollow portion penetrating therethrough communicating with the slot holes of the rotor cores facing each other between the arranged rotor core groups. Since the hollow body is provided, the slot holes of the two rotor core groups and the hollow body are connected in a communicating manner, and aluminum is cast from the other end different from that between the rotor cores of the slot holes of the rotor core, The hollow body having a hollow portion serves as a conduit for the casting material from the slot hole of one rotor core to the slot hole of the other rotor core,
At the same time as the casting, a rotor conductor communicating the slot hole of the two rotor cores and the hollow body is formed, and the two rotor cores are formed as an integral rotor.
また、回転子コア間の複数の中空体のそれぞれに中空
部から外部に通じる孔を設けて鋳込みと同時に前記複数
個の中空体の隣接する孔を鋳込み材で相互に連結するよ
うに構成してあるので、中空体は中空部内から外部に通
じる孔を設けるだけでよく、事前に複数の中空体を連結
する抵抗材を一体に形成することもない。従来のように
抵抗材を溶接等で固着する必要もなくなり抵抗材の発熱
による固着部分の歪は溶接等の固着部分がないので発生
しない。Further, a plurality of hollow bodies between the rotor cores are provided with holes communicating from the hollow parts to the outside, and the adjacent holes of the plurality of hollow bodies are connected to each other with a casting material at the same time as casting. Therefore, the hollow body only needs to be provided with a hole communicating from the inside of the hollow part to the outside, and there is no need to integrally form a resistance member connecting the plurality of hollow bodies in advance. There is no need to fix the resistance material by welding or the like as in the prior art, and distortion of the fixed portion due to heat generation of the resistance material does not occur because there is no fixed portion such as welding.
つまり回転子導体間を連結する連結材も、鋳込みと同
時に隣接する中空体の孔を鋳込み材で連結するようにし
たので、回転子導体と回転子導体間の抵抗材とを鋳込み
により同時に鋳込み材で形成することができる。このと
き回転子導体と抵抗材は同素材であり抵抗材の発熱によ
る歪は、回転子導体と抵抗材との間に固着部分がないの
で機械的強度に影響はない。このときの中空体は導電材
に限定されることはない。In other words, since the connecting material for connecting the rotor conductors is also connected to the holes of the adjacent hollow bodies with the casting material at the same time as the casting, the rotor conductor and the resistance material between the rotor conductors are simultaneously cast by the casting material. Can be formed. At this time, the rotor conductor and the resistor are made of the same material, and the distortion due to the heat generated by the resistor has no effect on the mechanical strength because there is no fixed portion between the rotor conductor and the resistor. The hollow body at this time is not limited to the conductive material.
また、中空体を導電材で構成したとき、中空体の中空
部内にロウ材からなるシート材を施したものは、とくに
アルミによる中空体のとき、鋳込みにより鋳込み材と中
空体との固着が容易となり、電気的に均一な導通状態を
確保できる。このときの中空体材はロウ付可能なもので
ある。In addition, when the hollow body is made of a conductive material, when a sheet material made of a brazing material is applied to the hollow portion of the hollow body, particularly when the hollow body is made of aluminum, the cast material and the hollow body can be easily fixed by casting. And an electrically uniform conduction state can be secured. The hollow body material at this time can be brazed.
すでに本出願人は、特願昭61−128314号として本発明
の構成の一部をなす２固定子からなる誘導電動機の構
成、作用の詳細な説明を行っている。The present applicant has already described in detail, as Japanese Patent Application No. 61-128314, the structure and operation of an induction motor composed of two stators which form a part of the structure of the present invention.
まず第１図により本発明による回転子の一実施例を示
す。図において符号２は本発明による回転子である。該
回転子２は鋼板３を積層して形成した回転子コア群4,5
を回転軸７（鋳込みの時はマンドレル）に任意間隔を設
けて軸装し、任意間隔を設けた回転子コア群4,5間には
貫通した中空部８を有する中空体９を設け、回転子コア
に設けてあるスロット孔６と中空部８とを連通状にして
ある。このときスロット孔６のそれぞれに対応して中空
部８を設けたり、スロット孔６の複数個に１つ中空部８
を設けたりする。このように構成した回転子コア群4,5
と中空体９とは鋳込みにより連結されて鋳込み材10によ
り回転子導体11と短絡環12とが形成され一体的回転子と
なる。First, FIG. 1 shows an embodiment of a rotor according to the present invention. In the figure, reference numeral 2 denotes a rotor according to the present invention. The rotor 2 includes rotor core groups 4 and 5 formed by stacking steel plates 3.
Is mounted on a rotating shaft 7 (a mandrel at the time of casting) at an arbitrary interval, and a hollow body 9 having a hollow portion 8 penetrating is provided between rotor core groups 4 and 5 at an arbitrary interval, and is rotated. The slot hole 6 provided in the daughter core and the hollow portion 8 are communicated. At this time, a hollow portion 8 is provided corresponding to each of the slot holes 6, or one hollow portion 8 is provided for a plurality of the slot holes 6.
And so on. Rotor core groups 4, 5 configured in this way
The hollow body 9 and the hollow body 9 are connected by casting, and a rotor conductor 11 and a short-circuit ring 12 are formed by a casting material 10 to form an integral rotor.
次に回転子コア群4,5間の回転子導体11に連結材を設
ける場合の中空体について第３図により説明する。この
場合の中空体９は導電材で形成すると共に複数個の中空
体９を連結する連結材15を設けてあり、中空体９と連結
材15は一体的に形成してある。Next, a hollow body in a case where a connecting member is provided in the rotor conductor 11 between the rotor core groups 4 and 5 will be described with reference to FIG. In this case, the hollow body 9 is formed of a conductive material and provided with a connecting member 15 for connecting the plurality of hollow bodies 9, and the hollow body 9 and the connecting member 15 are integrally formed.
このときの中空体９と連結材15の材質は、ステンレ
ス、ニッケル、それらの合金等と電動機の特性に応じて
自由に選択できる。また連結材の形状は本実施例に限定
されず、第４図に示したように導電路長を変えるため外
周に大きく突出した形状や円盤状のもの、あるいは平板
のものと様々である。At this time, the materials of the hollow body 9 and the connecting member 15 can be freely selected according to the characteristics of the electric motor, such as stainless steel, nickel, their alloys, and the like. Further, the shape of the connecting member is not limited to the present embodiment, and various shapes such as a shape protruding largely to the outer periphery, a disk shape, and a flat shape as shown in FIG.
ここで導電材にアルミニウムを使用した場合、アルミ
ニウムの表面には酸化被膜を形成しているため、アルミ
ニウムを鋳込んで回転子導体を形成するとき、鋳込んだ
アルミニウムつまり回転子導体11と、中空体９とが先の
酸化被膜により絶縁されて連結材15が作用しないことに
なる。ここで鋳込みと同時に中空体９と回転子導体11の
導通を確保するため、中空体９の中空部８内面にロウ材
からなるシート材を装着すると、鋳込み時に鋳込み材の
温度でロウ材が融解し中空体９と鋳込み材との結合が成
され、連結材15と回転子導体11との導通が確保される。Here, when aluminum is used as the conductive material, since an oxide film is formed on the surface of aluminum, when the rotor conductor is formed by casting aluminum, the cast aluminum, that is, the rotor conductor 11, and the hollow The body 9 is insulated from the oxide film and the connecting member 15 does not work. At this time, in order to secure conduction between the hollow body 9 and the rotor conductor 11 at the same time as the casting, when a sheet material made of a brazing material is attached to the inner surface of the hollow portion 8 of the hollow body 9, the brazing material is melted at the temperature of the casting material at the time of casting. The connection between the hollow member 9 and the casting material is made, and conduction between the connecting member 15 and the rotor conductor 11 is ensured.
次に鋳込みと同時に連結材を形成する実施例を第５図
により説明する。Next, an embodiment in which a connecting member is formed simultaneously with casting will be described with reference to FIG.
中空体９に中空部８から外部に通じる孔16を設けて、
孔16−１と孔16−２、孔16−２と孔16−３とそれぞれ隣
り合う中空体９の孔16を接続するように鋳込みの金型に
流入路17を設けてある。このように金型を形成すると注
入された鋳込み材は回転子コアのスロット孔６と中空体
９の中空部８及び流入路17に流れて、回転子導体11と短
絡環12及び連結材15が同時に形成される。The hollow body 9 is provided with a hole 16 communicating from the hollow portion 8 to the outside,
An inflow passage 17 is provided in a casting mold so as to connect the holes 16-1 and 16-2, and the holes 16-2 and 16-3, and the holes 16 of the hollow body 9 adjacent to each other. When the mold is formed in this manner, the injected casting material flows into the slot hole 6 of the rotor core, the hollow portion 8 of the hollow body 9 and the inflow path 17, and the rotor conductor 11, the short-circuit ring 12, and the connecting material 15 are formed. Formed at the same time.
この実施例の回転子コア群の鋳込みについて第６図に
より説明する。第６図によると、鋳込みに使用されるマ
ンドレル24を、回転子コア群4,5と中空体９に嵌挿して
ある。The casting of the rotor core group of this embodiment will be described with reference to FIG. According to FIG. 6, the mandrel 24 used for casting is inserted into the rotor core groups 4 and 5 and the hollow body 9.
マンドレル24を金型台25に保持し、長手方向に連結材
15部分で分割ラインを持つ金型21により回転子コア群５
を保持してある。金型21には回転子コア群４を保持する
金型22を載置する。鋳込みの注入口28とゲート30を有す
る金型23は、マンドレルベッド26を押下しながら金型22
に載置してある。また連結材15を形成する金型21との分
割ラインと、金型21と金型台25との分割ラインとには湯
だまり31,32を設ける。Hold the mandrel 24 on the mold stand 25, and connect the
Rotor core group 5 by mold 21 with 15 parting lines
Is held. A mold 22 for holding the rotor core group 4 is placed on the mold 21. The mold 23 having the casting inlet 28 and the gate 30 is moved while pressing the mandrel bed 26.
It is placed in. In addition, hot-water pools 31 and 32 are provided on a dividing line between the mold 21 and the mold 21 forming the connecting member 15 and a dividing line between the mold 21 and the mold stand 25.
第３図の上下方より金型を加圧して注入口28よりアル
ミニウムを加圧注入する。アルミニウムはゲート30より
スロット孔６と中空部８とに流入し、流路内のエアーと
共に湯だまり31,32に流入し完了する。The mold is pressurized from the upper and lower sides in FIG. The aluminum flows from the gate 30 into the slot hole 6 and the hollow portion 8 and flows into the basins 31 and 32 together with the air in the flow path, completing the operation.
ところで、前記鋳込みの金型等については本実例に限
定されず、パーティングライン等も作業の都合上、様々
な形状とすることができる。Incidentally, the casting mold and the like are not limited to the present example, and the parting line and the like can be formed into various shapes for convenience of operation.
更に付け加えると、回転子コア群のスロット孔内と、
中空体を設ける回転子コア面に絶縁材が施してあること
は言うまでもない。In addition, in the slot hole of the rotor core group,
It goes without saying that an insulating material is applied to the rotor core surface where the hollow body is provided.
ところで、素材の熱伝導の差により、あらかじめ金型
を加熱したり、あるいは冷却したりする装置を設けるこ
ともあり、鋳込みする素材により任意に設けることにな
る。By the way, a device for heating or cooling the mold may be provided in advance depending on the difference in heat conduction between the materials, and the device is arbitrarily provided depending on the material to be cast.
本発明によると、回転子コア間に中空体を設けて回転
子導体のスロット孔に連通状に連結したので回転子導体
を鋳込みで形成すると同時に一体的に回転子を形成する
ことができ回転子コア間の導体のための複数な金型と多
くの工数は不要となった。According to the present invention, the hollow body is provided between the rotor cores and connected to the slot holes of the rotor conductor in a communicating manner, so that the rotor conductor can be formed by casting and the rotor can be integrally formed. Multiple dies for conductors between cores and many man-hours are no longer required.
また前記導電材にアルミ材を使用しても、中空体の中
空部内面にロウ材からなるシート材を装着したので別個
の成型のための熱処理後に発生しているアルミ材の酸化
被膜に関係なく鋳込み材温度によるロウ材の融解により
鋳込み材と中空体の導通は確保される。In addition, even if an aluminum material is used as the conductive material, since a sheet material made of a brazing material is attached to the inner surface of the hollow portion of the hollow body, regardless of the oxide film of the aluminum material generated after the heat treatment for separate molding. By the melting of the brazing material at the temperature of the casting material, conduction between the casting material and the hollow body is ensured.
更に、中空体に中空部から外部に通じる孔を設けて、
鋳込みと同時に隣接する孔を鋳込み材で連結したことに
より、鋳込みの金型は回転子コア間の回転子導体の外周
において連結材だけを設けるようにすればよく、回転子
コア間の回転子導体は中空体により形成されているので
鋳込みの金型は単純となった。Further, by providing a hole in the hollow body from the hollow portion to the outside,
By connecting adjacent holes with a casting material at the same time as casting, the casting mold may be provided with only a connecting material on the outer periphery of the rotor conductor between the rotor cores, and the rotor conductor between the rotor cores may be provided. Is formed by a hollow body, so that the casting mold is simple.
本発明によると、回転子コア群間に中空部を有する中
空体を設けることで、一体的回転子を鋳込みにより形成
すること、中空体に中空部から外部に通じる孔を設け
て、簡単な金型で鋳込みと同時に回転子導体間の連結材
を形成すること、更にアルミニウムの酸化被膜に関係な
く鋳込みと同時にアミル成形品を組み込むことが可能と
なった。According to the present invention, by providing a hollow body having a hollow portion between the rotor core groups, an integral rotor is formed by casting, and a hole is provided in the hollow body from the hollow portion to the outside, so that simple metal is provided. It became possible to form a connecting material between the rotor conductors at the same time as casting with a mold, and to incorporate an amyl molded product at the same time as casting, regardless of the aluminum oxide film.
以上のことから一般の誘導電動機の如く単一の回転子
でアルミニウムの鋳込みを行う場合、多少大型のもので
も鋳込みが単純であるために一体的に鋳込むことは可能
であるが、２固定子誘導電動機のように２個の回転子コ
アを有するものは、金型、装置共に大型となるため、鋳
込みで一体的に形成することは、コスト面、技術面にお
いて困難であったが、複数固定子誘導電動機の大小の回
転子においても本発明により可能となった。From the above, when casting aluminum with a single rotor as in a general induction motor, casting is simple even with a somewhat large one because casting is simple. In the case of an induction motor having two rotor cores, both the mold and the device are large, so it is difficult to integrally form them by casting. The present invention also makes it possible to use small and large rotors of a child induction motor.
このことから、大型から小型まで、２個の固定子間に
回転磁界の位相のずれを設けて、トルクの多様化を計
り、可変速あるいは始動性を改善するタイプの誘導電動
機の用途を拡大して、高トルクの可変速電動機を必要と
するあらゆる分野に大きく貢献することができる。From this, from large to small, the phase shift of the rotating magnetic field is provided between the two stators to diversify the torque and expand the applications of induction motors of the type that improves variable speed or startability. Thus, it can greatly contribute to any field requiring a high torque variable speed motor.
第１図は本発明の第１の実施例図、第２図は回転子コア
の正面図、第３図は中空体と連結材との実施例図、第４
図は別の中空体と連結材との実施例図、第５図は中空体
と鋳込みの実施例図、第６図は鋳込みとその金型の実施
例図である。 図において、 ２……一体的回転子、３……鋼板（コア）、4,5……回
転子コア群、６……スロット孔、７……回転軸、８……
中空部、９……中空体、10……鋳込み材、11……回転子
導体、12……短絡環、15……連結材、16……孔、17……
流入路、21,22,23,25……金型、24……マンドレル、26
……マンドレルベッド、28……注入口、30……ゲート、
31,32……湯だまり。1 is a first embodiment of the present invention, FIG. 2 is a front view of a rotor core, FIG. 3 is an embodiment of a hollow body and a connecting member, FIG.
The figure shows an embodiment of another hollow body and a connecting member, FIG. 5 shows an embodiment of the hollow body and the casting, and FIG. 6 shows an embodiment of the casting and its mold. In the figure, 2 ... integral rotor, 3 ... steel plate (core), 4,5 ... rotor core group, 6 ... slot hole, 7 ... rotary shaft, 8 ...
Hollow portion, 9 Hollow body, 10 Cast material, 11 Rotor conductor, 12 Short circuit ring, 15 Linking material, 16 Hole, 17
Inflow channel, 21, 22, 23, 25 ... mold, 24 ... mandrel, 26
... mandrel bed, 28 ... inlet, 30 ... gate,
31,32 ... The pool.
Claims (2)
２個の回転子コアに連通する複数個の回転子導体が装設
され、あるいは更に２個の回転子コア間において前記複
数個の回転子導体が相互に抵抗材によって短絡連結され
た一体的なかご形回転子と、前記２個の回転子コアと同
心的に周設された２個の固定子コアに巻線をそれぞれ巻
装した２個の固定子とを設け、２個の固定子間に位相差
を設ける電圧移相装置を有する２固定子誘導電動機にお
いて、 前記一体的なかご形回転子は、複数個のスロットを開設
した鋼板を積層して形成した２個の回転子コア群を回転
上に並設し、貫通した中空部を有する中空体を２個の回
転子コア群間に複数個設けて、前記中空体の中空部を介
して２個の回転子コア群の複数個のスロットを連通さ
せ、該中空体はそれぞれに中空部から外部に通じる孔を
備え、前記回転子コア群間と異なる両端の複数個のスロ
ット孔よりアルミニウムを鋳込んで、スロットに回転子
導体と、回転子コア群間と異なる両端に短絡環を形成す
ると同時に隣接する複数個の中空体の孔を相互に連結し
て一体的なかご形回転子としたことを特徴とする２固定
子誘導電動機の回転子。1. A rotor having two rotor cores on the same rotating shaft, and a plurality of rotor conductors communicating with the two rotor cores is provided, or between two rotor cores. An integral cage rotor in which the plurality of rotor conductors are short-circuited to each other by a resistance material, and windings wound around two stator cores arranged concentrically with the two rotor cores A two-stator induction motor having a voltage phase shifter for providing a phase difference between the two stators, wherein the integral cage rotor is provided in a plurality. Two rotor core groups formed by laminating steel plates with slots are arranged side by side in rotation, and a plurality of hollow bodies having hollow portions penetrated are provided between the two rotor core groups, A plurality of slots of two rotor core groups communicate with each other through a hollow portion of the hollow body, Each has a hole communicating from the hollow portion to the outside, and aluminum is cast from a plurality of slot holes at both ends different from those between the rotor core groups, and a rotor conductor and a different end from the rotor core group are inserted into the slots. A rotor for a two-stator induction motor, wherein a short-circuit ring is formed at the same time and holes of a plurality of adjacent hollow bodies are connected to each other to form an integral cage rotor.
体の中空部内に、ロウ材からなるシート材を設けたこと
を特徴とする請求項（１）記載の２固定子誘導電動機の
回転子。2. A two-stator induction motor according to claim 1, wherein the hollow body is made of a conductive material, and a sheet material made of a brazing material is provided in a hollow portion of the hollow body to be cast. Rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30063489A JP2927840B2 (en) | 1989-11-17 | 1989-11-17 | Rotor of 2 stator induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30063489A JP2927840B2 (en) | 1989-11-17 | 1989-11-17 | Rotor of 2 stator induction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03164050A JPH03164050A (en) | 1991-07-16 |
| JP2927840B2 true JP2927840B2 (en) | 1999-07-28 |
Family
ID=17887226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30063489A Expired - Fee Related JP2927840B2 (en) | 1989-11-17 | 1989-11-17 | Rotor of 2 stator induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2927840B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140079633A (en) * | 2012-12-18 | 2014-06-27 | 현대중공업 주식회사 | Rotor for Motor Using 2 Piece |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1026424C2 (en) * | 2004-06-15 | 2005-12-19 | Siemens Ind Turbomachinery B V | Rotor for electric motor, compressor unit provided with rotor, method for manufacturing a rotor for an electric motor. |
-
1989
- 1989-11-17 JP JP30063489A patent/JP2927840B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140079633A (en) * | 2012-12-18 | 2014-06-27 | 현대중공업 주식회사 | Rotor for Motor Using 2 Piece |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03164050A (en) | 1991-07-16 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |