JPS58207849A - Squirrel cage rotor - Google Patents
Squirrel cage rotorInfo
- Publication number
- JPS58207849A JPS58207849A JP57090781A JP9078182A JPS58207849A JP S58207849 A JPS58207849 A JP S58207849A JP 57090781 A JP57090781 A JP 57090781A JP 9078182 A JP9078182 A JP 9078182A JP S58207849 A JPS58207849 A JP S58207849A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- end ring
- rotor
- core
- cage rotor
- 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 description 7
- 239000004020 conductor Substances 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013021 overheating Methods 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】
この発明はかご形回転子、とくに回転子導体とエンドリ
ングとの結合を回転子導体の円周部において行うかご形
回転子に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a squirrel cage rotor, and particularly to a squirrel cage rotor in which a rotor conductor and an end ring are coupled at a circumferential portion of the rotor conductor.
従来、大量に生産されるかご形回転子はアルミニウムの
ダイカストにより回転子導体とエンドリングとを結合す
るアルミダイカスト方式によるものが広く行われていた
が、この方式によるときけ生産性の点ではすぐれている
が、大量の熱エネルギーを必要とする欠点ぞあり、また
鋳造層の冷却時に回転子導体が断線したり、エンドリン
グに空胴、果などが発生し１％性が低下するなどの欠点
があった。Traditionally, mass-produced squirrel cage rotors have been widely produced using an aluminum die-casting method that connects rotor conductors and end rings using aluminum die-casting, but this method is superior in terms of productivity. However, there are drawbacks such as requiring a large amount of thermal energy, and the rotor conductor may break when the casting layer is cooled, and cavities and holes may occur in the end ring, reducing the 1% performance. was there.
近年１回転子導体を回転子鉄心のスロットに自動挿入す
る技術や９回転子導体の端部にエンドリングを自動溶接
する技術が進展するに伴い、大量生産品にもこの種構造
のものが採用されるようになった。In recent years, with advances in technology for automatically inserting one-rotor conductors into slots in the rotor core and for automatically welding end rings to the ends of nine-rotor conductors, this type of structure is also being adopted for mass-produced products. It started to be done.
然し、従来のものは９回転子導体の熱容量とエンドリン
グの熱容量の相違から溶接部に欠陥を生じ易く、′ｉた
運転時には回転子導体の冷却が十分に行われないたｈｔ
）＃過熱する欠点があった。However, with the conventional type, defects tend to occur in the welds due to the difference in heat capacity between the nine rotor conductors and the end ring, and the rotor conductors are not cooled sufficiently during heavy operation.
) # It had the drawback of overheating.
この発明は以上のような従来のものの欠点を改善すると
とを目的とするもので１回転子導体とエンドリングＱ熱
容量’ｋｖ！４整するとともに１回転子導体の端ｓ′１
に傾斜させることにより回転子導体Ｏ冷却を行うようＫ
したかご形回転子會提供するものである。The purpose of this invention is to improve the above-mentioned drawbacks of the conventional one. One rotor conductor and end ring Q heat capacity 'kv! 4, and the end s'1 of the 1st rotor conductor
To cool the rotor conductor O by tilting it to
A squirrel cage rotor assembly is provided.
以下、この発明の一実施例を第１図、第２図により説明
する。図ｔＣおいて口）は回転軸、（２）は回転軸（１
）に支持される回転子鉄心、（３）１ａ回転子鉄心（２
）に形成されたスロツ） （２ａ）罠挿入される回転子
導体、（４）は回転子導体（３）の内周部鵞短絡するエ
ンドリング、エンドリング（４）は円周部に形成された
段％ｆｆ１Ｓ（４ａ）ＦＣ！ ！ｌ心（２）Ｋ近％；Ｌ
７を厚ＦＪｉｌｌ（４ｂ）ト鉄心（２）から離れた薄肉
部とか形成され、厚肉部（４ｂ）および薄肉部（４ｃ）
の内周部は鉄心（２）から離れるに従って内径が大きく
なるように傾斜させている。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In Figure tC, the rotation axis (mouth) is the rotation axis, and (2) is the rotation axis (1
), (3) 1a rotor core (2
) (2a) The rotor conductor is inserted into the trap, (4) is an end ring that short-circuits the inner circumference of the rotor conductor (3), and the end ring (4) is formed on the circumference. %ff1S (4a) FC! ! l heart (2) K near %; L
7 is formed with a thickness FJill (4b) and a thin walled part away from the iron core (2), and a thick walled part (4b) and a thin walled part (4c).
The inner circumferential portion of the iron core (2) is inclined so that the inner diameter increases as the distance from the iron core (2) increases.
また、Ｉ！２１転子導体（３）のエンドリング（４］よ
り側部に延長され７′ｃｓ分（３ａ）は矢印ムで示され
る回転方向と反対１１１１１ｃ傾斜させている。Also, I! The 7'cs portion (3a) of the 21 trochanter conductor (3) extending to the side from the end ring (4) is inclined 11111c opposite to the direction of rotation indicated by the arrow mark.
以上の工うＶＣ構成すること罠より１回転子導体（３）
とエンドリング（４）の熱容量の差が小さくなり。The above method can be used to configure a VC trap with one rotor conductor (3)
The difference in heat capacity between and end ring (4) becomes smaller.
エンドリング（４）に回転子導体（３）【ろう付けまた
は溶接する場合に両者を均等に加熱する仁とができ。The rotor conductor (3) can be attached to the end ring (4) to heat the rotor conductor (3) evenly when brazing or welding.
また運転時には回転子導体（３）端部の傾斜部分（５ａ
）Ｋよるファン作用により矢印Ｂに示される・ように外
周方向に冷却風が発生し１回転子導体（３）ヲζ発生し
ｆｌ：、熱を放熱する。またエンドリング（４）に段落
部（４ａ）を設けることにより１表面積が増加するとと
もに、エンドリング（４）の内周部を鉄心（２）の側方
に向って内径が大きくなるように傾斜させＩＣので。Also, during operation, the inclined portion (5a) of the end of the rotor conductor (3)
) Due to the fan action of K, cooling air is generated in the outer circumferential direction as shown by arrow B, and the first rotor conductor (3) is generated to radiate heat. In addition, by providing the stepped portion (4a) on the end ring (4), the surface area increases, and the inner circumference of the end ring (4) is inclined so that the inner diameter increases toward the side of the iron core (2). Because it is an IC.
遠心力により矢印Ｃで示されるように冷却風が発生しエ
ンドリング（４）の表面を冷却する。Cooling air is generated by centrifugal force as shown by arrow C and cools the surface of the end ring (4).
以上のように、この発明によるときは回転子導体とエン
ドリングとを均％に加熱することができるので、ｆｆ？
接部分に欠陥が生ずることが防止され。As described above, according to the present invention, the rotor conductor and the end ring can be heated evenly, so ff?
This prevents defects from occurring in the contact parts.
ま九エンドリングの表面積の増加ならびに回転子導体端
ｓＫよるファン作用により運転時の温度上昇ｔｔｔ下さ
せることができ、＃エネルギーの消費が少く、安価で品
質のすぐれたかご形回転子を提供することができる。。By increasing the surface area of the end ring and the fan action by the rotor conductor end sK, the temperature rise during operation can be reduced by ttt, thereby providing a squirrel cage rotor that consumes less energy, is inexpensive, and has excellent quality. be able to. .
、,
第１図、菖２図はこＱ発明の一実施例を示し。
＠１−は縦断面図、第２図は側面図である０図において
、同一符号は同一または相当部分を示し、（２１１よ回
転子鉄心、（３）は回転子導体、 （３ａ）は延長され
た部分、（４）はエンドリンク、 （４ａ）は段落部で
ある。
代理人葛野信−
第１図Figures 1 and 2 show an embodiment of this invention. @1- is a longitudinal sectional view, and Figure 2 is a side view. In Figure 0, the same reference numerals indicate the same or equivalent parts, (211 is the rotor core, (3) is the rotor conductor, (3a) is the extension. (4) is the end link, (4a) is the paragraph section. Agent Makoto Kuzuno - Figure 1
Claims (1)
えたかご形回転子において、−上記エンドリングの径方
向の厚さを鉄心に接する＠を厚（、鉄心より離れた側を
薄くする段落Ｓを設けるとともに、上記回転子導体の上
記エンドリングより側方に延長される部分を回転方向と
反対ｇｌＪＶｃ傾斜させたことを特徴とするかご形回転
子。 （２） エンドリングの内周部を鉄心より離れるに従
って径が大きくなるように傾斜させたことを特徴とする
特許請求の範囲第１項に記載のかご形回転子。[Claims] (]) In a squirrel-cage rotor equipped with an end ring that short-circuits the inner circumference of the rotating rotor body, - the radial thickness of the end ring is defined as the thickness @ in contact with the iron core (, A squirrel cage rotor characterized in that a paragraph S is provided to make the side remote from the iron core thinner, and a portion of the rotor conductor extending laterally from the end ring is inclined opposite to the rotation direction. 2) The squirrel-cage rotor according to claim 1, wherein the inner circumferential portion of the end ring is inclined so that the diameter increases as the distance from the iron core increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57090781A JPS58207849A (en) | 1982-05-28 | 1982-05-28 | Squirrel cage rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57090781A JPS58207849A (en) | 1982-05-28 | 1982-05-28 | Squirrel cage rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58207849A true JPS58207849A (en) | 1983-12-03 |
Family
ID=14008137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57090781A Pending JPS58207849A (en) | 1982-05-28 | 1982-05-28 | Squirrel cage rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58207849A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6291576U (en) * | 1985-11-25 | 1987-06-11 | ||
| WO2011129853A1 (en) * | 2010-04-15 | 2011-10-20 | General Electric Company | Traction motor |
| US8502425B2 (en) | 2010-01-26 | 2013-08-06 | Hitachi, Ltd. | Totally enclosed motor |
-
1982
- 1982-05-28 JP JP57090781A patent/JPS58207849A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6291576U (en) * | 1985-11-25 | 1987-06-11 | ||
| US8502425B2 (en) | 2010-01-26 | 2013-08-06 | Hitachi, Ltd. | Totally enclosed motor |
| WO2011129853A1 (en) * | 2010-04-15 | 2011-10-20 | General Electric Company | Traction motor |
| US8492950B2 (en) | 2010-04-15 | 2013-07-23 | General Electric Company | Rotor assembly for traction motor |
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