JPS5854844A - Squirrel cage rotor - Google Patents
Squirrel cage rotorInfo
- Publication number
- JPS5854844A JPS5854844A JP56150786A JP15078681A JPS5854844A JP S5854844 A JPS5854844 A JP S5854844A JP 56150786 A JP56150786 A JP 56150786A JP 15078681 A JP15078681 A JP 15078681A JP S5854844 A JPS5854844 A JP S5854844A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- slot
- iron core
- slots
- squirrel cage
- 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
- 241000555745 Sciuridae Species 0.000 title claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 29
- 238000004512 die casting Methods 0.000 abstract description 5
- 239000003973 paint Substances 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 description 10
- 230000006698 induction Effects 0.000 description 5
- 238000010030 laminating Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Induction Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は誘導電動機のかご形回転子に係り、特にアルミ
ニウムキャストされるかご形回転子の特性向上区二関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a squirrel cage rotor for an induction motor, and more particularly to improving the characteristics of an aluminum cast squirrel cage rotor.
従来誘導電動機のかご形回転子は第1図に示すような薄
鉄板1の外周(:複数個の等配スロット2を打抜いてこ
れ全積層し、第2図に示すよう区二ヌロット2内Cユ導
体3と、両側部のエンドリング4とから成るかご形巻線
旦ヲアルミニウムキャストする。さら(二この導体3は
軸方向に対し成る角度θすなわちスキュー全段けている
のが普通である。Conventionally, the squirrel cage rotor of an induction motor is made by punching out a plurality of equally spaced slots 2 on the outer periphery of a thin iron plate 1 as shown in FIG. A squirrel-cage winding consisting of the C conductor 3 and the end rings 4 on both sides is cast in aluminum.In addition, the conductor 3 usually has an angle θ with respect to the axial direction, that is, a skew of all stages. be.
このスキューを設けることは誘導電動機の始動時gユ異
常トルクや振動、騒音が発生しないようにするためであ
る。しかし、このスキュー金膜けることは、上記の特性
は改良されるが、スロット2内の導体3間(二横流損を
発生することになり、これは電動機の効率を低下させる
ことと又この横流損は温度上昇の原因ともなる。これを
さけるため従来は薄鉄板1を積層した後、数多くのスロ
ット2の内面をフェノ等により絶縁加工會して、横流損
を減らすようにしていたのでこのためこの作業工程が必
要とされるほか、アルミダイキャストの温度、圧力に耐
える絶縁被膜を得るためフェノなどに特殊な耐熱塗料を
要するなどの欠点があった。The purpose of providing this skew is to prevent abnormal torque, vibration, and noise from occurring when the induction motor is started. However, although this skew gold film improves the above characteristics, it will cause cross current loss between the conductors 3 in the slot 2, which will reduce the efficiency of the motor and also cause this cross current loss. This loss also causes a rise in temperature.To avoid this, conventionally, after laminating thin iron plates 1, the inner surfaces of the many slots 2 were insulated with phenol, etc. to reduce cross flow loss. In addition to this work process being required, there were other drawbacks such as the need for special heat-resistant paint on the phenol to create an insulating coating that could withstand the temperature and pressure of aluminum die-casting.
本発明の目的はかご形回転子のスロット全スキューする
ことなし口、スキューしたと同様な良好な始動特性を得
ることができるよう(二側側のスロットはスキューなし
とし、相互のスロット間は中央部分にて位置を変えた構
成としたので、スキューしないこと(二より、スロット
ヲ絶縁処理も不要で横流損も少ない、特性の良いかご形
陽転子を提供することにある◇
以下に本発明の構成全一実施例の図面を参照して説明す
る。但し前記した従来と同一部分は同一符号を用い詳細
な説明は省略する。本発明のかご形陽転子は第3因及び
第4因で示すよう≦二、回転子の薄鉄板1は従来と同様
に薄鉄板1の外周C二放射状に複数個のスロット2を打
抜いて形成される。The purpose of the present invention is to create a squirrel cage rotor with no skew in its slots, so that it can obtain good starting characteristics similar to those with skew (the slots on the two sides are free of skew, and the slots between the two slots are in the center). Since the position of the parts is changed, there is no skew (Secondly, the purpose is to provide a squirrel cage positive trochanter with good characteristics, which does not require slot insulation treatment and has low cross current loss. The following is the configuration of the present invention. The explanation will be given with reference to the drawings of all the embodiments.However, the same parts as the above-mentioned conventional ones will be given the same reference numerals and detailed explanations will be omitted. ≦2. The thin iron plate 1 of the rotor is formed by punching out a plurality of slots 2 radially on the outer circumference C2 of the thin iron plate 1, as in the conventional case.
此の薄鉄板1を複数枚積層して積層鉄心とする際、第3
図に示すように軸方向の積層全長の中央の所で間隔をお
いた2個のブロック6及び7に分は工積層する。軸方向
に事後直二鋳込む導体3aが所定の不キューと成るよう
に中間短絡体8″を設ける。When laminating a plurality of thin iron plates 1 to form a laminated iron core, the third
As shown in the figure, two blocks 6 and 7 spaced apart at the center of the total length of the axial stack are laminated. An intermediate short-circuit member 8'' is provided so that the conductor 3a that is immediately cast in the axial direction has a predetermined non-cue.
例えばこの中間短絡体8はアルミニウムで所定の厚さを
有する材料の外周に、かご形陽転子の薄鉄板lの外周一
二打抜いた複数個のスロット2と等配で、所定の角度θ
全役けた導体溝9を複数個加工して設け、且つ導体#I
I9の内面C二は耐熱性絶縁塗料10を塗布して設ける
。此の中間短絡体8を鉄心ブロック6及び7の中間に挟
着して積層鉄心11とする際、第3図6二示すように両
側の鉄心ブロック6及び7のスロット2を軸方向の同一
@線上じ合致させ、中間短絡体8のスキュー付の導体溝
9カ鉄心ブロック6及び7間のスロットビラテラ1スロ
ツトピツチスキユー状に形成する。しかしてスロット2
、導体溝9及び其の両端面直ニスロット内導体3及び導
体溝9内の導体3aと、エンドリング4から成るかご形
巻線5′fニアルミニウムダイキャストして形成する。For example, this intermediate short-circuit body 8 is formed on the outer periphery of a material made of aluminum having a predetermined thickness, and is equidistant with a plurality of slots 2 punched out on the outer periphery of the thin iron plate l of the squirrel-cage positive trochanter at a predetermined angle θ.
A plurality of fully-functioning conductor grooves 9 are processed and provided, and conductor #I
The inner surface C2 of I9 is coated with heat-resistant insulating paint 10. When this intermediate short-circuit body 8 is sandwiched between the core blocks 6 and 7 to form the laminated core 11, the slots 2 of the core blocks 6 and 7 on both sides are aligned in the same axial direction as shown in FIG. The skewed conductor grooves 9 of the intermediate short-circuit body 8 are formed into a skewed slot pitch pattern between the core blocks 6 and 7. However, slot 2
, the conductor groove 9 and its both end faces are formed by die-casting a squirrel cage winding 5'f consisting of the conductor 3 in the slot, the conductor 3a in the conductor groove 9, and the end ring 4 by die casting.
以上の構成C−よると内鉄心ブロック6及び7のスロッ
ト2は、軸端両方向から見た場合、第3図6二示すよう
に、見かけ上角度θのスキューを持ったことC二なるの
で、始動時の異常トルクの発生や、振動、騒音の発生を
防止し、また運転時の横流ミニよる損失も防止すること
かできる。そしてスロット2はスキューしていないので
、従来のスキューされた回転子のよう6二、横流損を防
止するためのスロット2の内面のフェス処理が不要とな
る。According to the above configuration C-, the slots 2 of the inner core blocks 6 and 7 have an apparent skew of angle θ when viewed from both directions of the shaft ends, as shown in FIG. It is possible to prevent the generation of abnormal torque, vibration, and noise at the time of starting, and also to prevent losses due to cross flow mini during operation. Furthermore, since the slots 2 are not skewed, there is no need to perform face treatment on the inner surfaces of the slots 2 in order to prevent crossflow losses, unlike in conventional skewed rotors.
岡、以上スロット形状は半閉形スロットで説明したが、
全閉スロット又は二重かご形スロットでも同様の作用効
果か得られ、三相誘導電動機でも単相誘導電動機5二も
適用できるほか鉄心のブロック数は2個以上でもよい。Oka, the slot shape was explained above as a semi-closed slot, but
Similar effects can be obtained with a fully closed slot or a double squirrel cage slot, and a three-phase induction motor or a single-phase induction motor 52 can also be applied, and the number of iron core blocks may be two or more.
又、他C二中間短絡体8の材料をアルミニウム鋳込前の
鉄心の予熱温度や、キャスト導体3&区二なる個所の溶
湯アルミニウムが、凝固後l二比較的長時間持続される
温度150から250℃の温度i1耐え、且つキャスト
導体3aが凝固後区二おいて、前記中間短絡体8全比較
的低い温度で溶出し、除去することが出来るような、例
えば250℃から450℃の融点を有するダイキャスト
用亜鉛基合金材料金使用してスロット2内の導体3及び
とエンドリング4とからなるかご形巻線5’tl−アル
ミキャストし、これが凝固したのち、前記中間短絡体8
を加熱溶融して除去する等、本発明は上記し、かつ因百
C−示した実施例のみ≦二限定されるものではなく、そ
の要旨全変更しない範囲で、種々寂形して実施できるこ
とは勿論である。In addition, the material of the intermediate short-circuit body 8 is set to a preheating temperature of the iron core before aluminum casting, and a temperature of 150 to 250, which is maintained for a relatively long time after solidification of the molten aluminum of the cast conductor 3 & 2. ℃, and has a melting point of, for example, 250° C. to 450° C., so that the cast conductor 3a can be eluted and removed at a relatively low temperature after solidification. The cage-shaped winding 5'tl-aluminum consisting of the conductor 3 and the end ring 4 in the slot 2 is cast using gold, a zinc-based alloy material for die casting, and after solidification, the intermediate short-circuit body 8 is cast.
The present invention is not limited to the above-mentioned examples and is not limited to the examples shown above, and can be carried out in various ways without changing the gist thereof. Of course.
以上、本発明C二よれば、スロットをスキューすること
なく、等測的ζニスキューしたことになり、スロット内
面にフェス処理をしなくても始動特性、運転特性ともに
良好になる。従って特性のよい、製造工数の少くないか
ご形陽転子を得ることができる効果がある。As described above, according to the present invention C2, the slot is not skewed but isometrically ζ-niskewed, and both the starting characteristics and the operating characteristics are good even without face treatment on the slot inner surface. Therefore, it is possible to obtain a squirrel-cage positive trochanter with good characteristics and a small number of manufacturing steps.
第1Nは従来のかご形陽転子用の薄鉄板の平面図、第2
図は薄鉄板を積層して製造した従来のかご形陽転子の正
面図、第3図は本発明の一実施例のかご形陽転子の正面
図、第4図は第3図の■−■線lこ沿う矢視断面図であ
る。
1・・・薄鉄板 2・・・スロット3・・・導
体 3a中スキユー状の導体4・・・エンド
リング 旦・・・かご形巻線6.7・・・鉄心ブロッ
ク
8・・・中間短絡体 9・・・導体溝10・・・耐
熱性絶縁塗料
11・・・積層鉄心 θ・・・スキュー角度第1図
4 第2図
す 第3図
26j1N is a plan view of a thin iron plate for a conventional squirrel cage positive trochanter;
The figure is a front view of a conventional squirrel cage positive trochanter manufactured by laminating thin iron plates, FIG. 3 is a front view of a squirrel cage positive trochanter according to an embodiment of the present invention, and FIG. 4 is a front view of a squirrel cage positive trochanter manufactured by laminating thin iron plates. It is a sectional view taken along line l. 1...Thin iron plate 2...Slot 3...Conductor 3a Middle skew-shaped conductor 4...End ring Dan...Squirrel cage winding 6.7...Iron core block 8...Middle Short circuit body 9...Conductor groove 10...Heat-resistant insulating paint 11...Laminated core θ...Skew angle Fig. 1 4 Fig. 2 Fig. 3 26j
Claims (1)
スロット部−一導体と両端面1ニエンドリングをアルミ
ニウムキャス)(二より設けたかご形回転子鑑二おいて
、積層鉄心全複数の鉄心ブロックC:分け、各ブロック
のスロット導体を軸方向の同−厘線状区二合致させると
とも1′−各鉄心ブロック間に所定のスキュー角度を有
する導体全介在させて各鉄心ブロックの導体と結合させ
たことを特徴とするかご形回転子。Outer circumference ≦ 1 Slot part of cylindrical laminated core with multiple slots 2 - 1 conductor and both end faces 1 Ni end ring made of aluminum cast) Core block C: The slot conductors of each block are aligned in the same axial direction, and the conductors with a predetermined skew angle are all interposed between each core block. A squirrel cage rotor characterized by being combined with a conductor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56150786A JPS5854844A (en) | 1981-09-25 | 1981-09-25 | Squirrel cage rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56150786A JPS5854844A (en) | 1981-09-25 | 1981-09-25 | Squirrel cage rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5854844A true JPS5854844A (en) | 1983-03-31 |
Family
ID=15504394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56150786A Pending JPS5854844A (en) | 1981-09-25 | 1981-09-25 | Squirrel cage rotor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5854844A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5545324A (en) * | 1994-06-29 | 1996-08-13 | Baker Hughes Incorporated | Skimmer mechanism for rectangular basin chain and flight |
-
1981
- 1981-09-25 JP JP56150786A patent/JPS5854844A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5545324A (en) * | 1994-06-29 | 1996-08-13 | Baker Hughes Incorporated | Skimmer mechanism for rectangular basin chain and flight |
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