JPS5937869A - Manufacture of squirrel-gage type rotor - Google Patents
Manufacture of squirrel-gage type rotorInfo
- Publication number
- JPS5937869A JPS5937869A JP14687982A JP14687982A JPS5937869A JP S5937869 A JPS5937869 A JP S5937869A JP 14687982 A JP14687982 A JP 14687982A JP 14687982 A JP14687982 A JP 14687982A JP S5937869 A JPS5937869 A JP S5937869A
- Authority
- JP
- Japan
- Prior art keywords
- slot
- squirrel
- cage
- rotor core
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0012—Manufacturing cage rotors
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Induction Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はａ＊ ４ ％、動機のかご形１１転子の製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for manufacturing an a* 4% motive squirrel cage 11 trochanter.
誘導電動機のかご形回転子Ｖ土、第１図に示した回転子
抜板（１）と呼はれる軸嵌会用の軸穴（２）およびアル
ミニウム又はアルミニウム合金の導体を収納するスロッ
ト（８）を有するプレス打抜されたものを第２図の如く
積層して得られる回転子鉄心（４）を第３図に示す如き
冷却用羽根（６）及び短絡環（６）と、第４図Ｃ二示す
如′＃導体（７）と力・ら成るかご形巻線を一体的にダ
イキャスト法により形成される。The squirrel-cage rotor of an induction motor has a shaft hole (2) for a shaft fitting called rotor punching (1) shown in Fig. 1, and a slot (8) for storing an aluminum or aluminum alloy conductor. ) The rotor core (4) obtained by laminating the press punched pieces having the same structure as shown in FIG. A squirrel cage winding consisting of a # conductor (7) and a conductor (7) as shown in C2 is integrally formed by die casting.
従来の初期の回転子抜＆ （１） ｌｒｊ第５図に示す
ようにその表を面に絶縁被膜層（９）が設（ハ）られて
いるが、プレス７１抜により製作されるので、スロット
（３）の導体（γ）との接触面は絶縁被膜層がなく、回
転子抜板（１）σ）（」料である電気鉄板が籟出状態ｌ
二ある。従って、回転子抜板（１）と導体（７）とは′
電気的に導通状態となり、誘導電動機の連転（１際して
導体（７）に流れる二次電流が露出部を通して導体（７
）相互間に短絡電流を生じ、漂遊負荷損失を生じさせた
り、漂遊トルクを発生さぜたりする原因となり、肪導電
動機の特性態化を生じさせる。そこでこの対策として近
年はスロット内面菖二絶縁処理を行ない露出部をなくす
ことが行なわれている。Conventional early rotor punching & (1) lrj As shown in Figure 5, an insulating coating layer (9) is provided on the surface (c), but since it is manufactured by punching the press 71, the slots are removed. The contact surface with the conductor (γ) in (3) has no insulating coating layer, and the electrical iron plate, which is the rotor blanking material (1) σ)
There are two. Therefore, rotor blanking (1) and conductor (7) are '
When the induction motor becomes electrically conductive, the secondary current flowing through the conductor (7) passes through the exposed part and
) A short-circuit current is generated between them, causing stray load loss and stray torque, which causes the characteristics of the fat conductive motor to change. As a countermeasure to this problem, in recent years, the inner surface of the slot has been insulated to eliminate the exposed portion.
このスロット絶縁処理の従来の方法として、第２図の如
く８ｉｉ）ｆｊされた回転子鉄心（１）を脱脂処理した
上で、耐熱絶縁塗料液に浸漬し、スロット（８）内面に
付着した塗膜を乾燥硬化させ、第６図および第７図に示
すように露出面ζニスロット絶縁層ｏＱをノ［２成した
後、アルミニウム又はアルミニウム合金のダイキャスト
を行ない、第３図の如きかご形回転子を得ていた。As shown in Fig. 2, the conventional method for this slot insulation treatment is to degrease the rotor core (1) which has undergone 8ii) fj, and then immerse it in a heat-resistant insulation paint solution to remove the paint that has adhered to the inner surface of the slot (8). After drying and hardening the film and forming a two-slot insulating layer oQ on the exposed surface as shown in FIGS. 6 and 7, die casting of aluminum or aluminum alloy is performed, and a cage-shaped rotating structure as shown in FIG. 3 is formed. had a child.
これらの処理工程のうち、特にスロット絶縁層１ＪＯ）
をスロット（８１内面ｉ二焼付けるｇ１際Ｌ２、耐熱性
の優れた絶縁物（例えばＦｅ２０Ｂ 、 ＦｅＰＯ４等
）を反応生成させる為に１回転子鉄心（４）を３５０
”Ｃ以上の高１昌１−加熱する事が必要である。その為
Ｃ二多大のエネルギーを消費し、又、高温加熱焼付後の
回転子鉄心１４＋の取扱いの為には、これを冷却すると
いう工程も必要であった。Among these processing steps, especially the slot insulating layer 1JO)
When the slot (81 inner surface i) is baked, the first rotor core (4) is heated to
It is necessary to heat the rotor core 14+ to a temperature higher than C. Therefore, a large amount of energy is consumed, and in order to handle the rotor core 14+ after baking at high temperature, it must be cooled. The process of doing so was also necessary.
本発明はスロット内面に耐熱絶縁塗料でスロット絶縁層
を形成する除に、特別な焼付工程を省いて、安価に製造
できるかご形回転子の製造方法を提供することを目的と
する。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a squirrel cage rotor that can be manufactured at low cost by omitting a special baking process in addition to forming a slot insulating layer with a heat-resistant insulating paint on the inner surface of the slot.
〔発明の組髪」
本発明においてに、耐熱絶＃１．＠料を１１転子鉄心の
スロット内面Ｃ二付篇させ、このスロットｇニアルミニ
ウム又妓アルミニウム合金の浴湯を注入してかご形巻線
をダイキャストし、この溶湯Ｃ二よる面接加熱により前
記スロット内面に付着させた耐熱絶縁塗料をスロット内
面Ｃ′″−焼付け、かご形巻線と回転子鉄心との間１ニ
スロット絶縁層を形成することにより箱別な焼灼工程を
省くものである。[Hair Braid of the Invention] In the present invention, heat-resistant #1. The inner surface of the slot C2 of the 11 trochanter core is made of aluminum, and a bath water of aluminum or aluminum alloy is injected into the slot to die cast the squirrel cage winding. The heat-resistant insulating paint adhered to the inner surface of the slot is baked onto the inner surface of the slot C''' to form a one-slot insulating layer between the squirrel cage winding and the rotor core, thereby eliminating the need for a cauterization process for each box.
以下、本発明の一実施例Ｃ二ついて、第１図、第２図、
第３図、第６図および第７図を８照して説明する。Hereinafter, there are two embodiments C of the present invention, FIG. 1, FIG. 2,
This will be explained with reference to FIGS. 3, 6, and 7.
本実施例はこ１＋−らの図１二おいて各部の構造が従来
例の辿りであるが、スロット絶縁層（１０１を形成する
工程が従来と異なるものである。Ｊｉ！ｌＩち、まず耐
熱絶縁塗料液に回転子鉄心（４）を浸漬し、スロットＣ
３１内面ｇ二酬熱絶縁塗料を付着させる。次にスロット
（Ｓ）内面に付着した耐熱絶縁塗料に含まれる溶剤が発
散される程度の温度Ｃ二加熱する。この温度は最も溶剤
の除去しく二くぃ水溶性の塗料の場合でも１５０℃ｇ二
加熱することで充分である。次にアルミニウム又はアル
ミニウム合金の＃湯をダイキャスト法署二よりスロット
（８）内Ｃ二導体（７）、鉄心（４）外部に知紹環（６
）および冷却用羽根（５）からなるかご形巻線（８）を
鋳込み形成する。In this embodiment, the structure of each part as shown in FIGS. Immerse the rotor core (4) in the insulating paint liquid and insert it into the slot C.
31. Adhere the second heat insulating paint to the inner surface. Next, the slot (S) is heated to a temperature of C2 to such an extent that the solvent contained in the heat-resistant insulating paint adhered to the inner surface of the slot (S) is evaporated. At this temperature, heating to 150° C. is sufficient even in the case of water-soluble paints to remove the most solvent. Next, aluminum or aluminum alloy hot water is die cast into the C2 conductor (7) inside the slot (8) and the chisho ring (6) on the outside of the iron core (4).
) and cooling vanes (5) are formed by casting.
次に作用ミニついて説明する。Next, I will explain the action mini.
アルミニウム又はアルミニウム合金の溶湯の偏角は７０
０〜７５０℃である。この溶湯の熱が、スロツ） ｆｌ
’ｌｌ内面Ｃ二（＝Ｊ着【−た耐熱絶縁塗料を＠接加熱
するので、短時間のうちＣ１耐熱絶縁塗料が反応を終了
し、強固なスロット絶縁層−を形成し、かご形巻線（８
］と１【７１転子蛙心（４）との間を絶縁する。従って
、ｒｈ別なスロット絶縁層α０）焼付工程を省略できて
安価なかご形回転子の製造方法となる。しかも従来の炉
加熱Ｃ二よる焼付けでは、全スロット（３）が均一に加
熱（７にくい欠点があったが、ダイキャストの溶湯で加
熱する本実施例の方法でｔ」均一に加熱さＪ′Ｌ％特性
Ｃニバラツキの少ないスロット絶縁＃ （１０）が得ら
れ製品の信頼性が向上フる〇
尚、本発明は上記し、かつ図面に示した実施例のみに限
定されるものではなく、その要旨を変更しない範囲で、
種々変形して実施できることは勿論である。The declination angle of molten aluminum or aluminum alloy is 70
The temperature is 0 to 750°C. The heat of this molten metal is the slot) fl
Since the heat-resistant insulating paint coated on the inner surface of C2 is heated directly, the heat-resistant insulating paint C1 completes its reaction within a short period of time, forming a strong slot insulating layer, and the cage-shaped winding (8
] and 1 [71 Trochanteric Frog Heart (4). Therefore, the baking process of the slot insulating layer α0) for each rh can be omitted, resulting in an inexpensive manufacturing method for the squirrel cage rotor. Moreover, conventional baking using furnace heating C2 had the disadvantage that it was difficult to heat all the slots (3) uniformly (7), but with the method of this embodiment, which uses die-cast molten metal, the heating can be done uniformly. L% Characteristic C Slot insulation # (10) with less variation can be obtained and the reliability of the product will be improved.The present invention is not limited to the embodiments described above and shown in the drawings. Without changing the gist,
Of course, it can be implemented with various modifications.
以上１明したように本発明によれは、特別な＾混焼付工
程を鳴いたことローより、無駄な焼付エネルギーも、又
、これを冷却するエネルギーも不要な紅済的なスロット
絶縁処理が口Ｊ能となり、安価で、徐遊負荷損失か少な
く、間過トルク発生の少ない１品い効率を持った肋専電
動（テそのかご形回転子が得られる製造方法となる。As explained above, the present invention provides a simple slot insulation treatment that eliminates the need for wasted burning energy and cooling energy, rather than requiring a special mixed burning process. This is a manufacturing method that can produce a squirrel-cage rotor that is inexpensive, has low idle load loss, and has low overload torque generation.
第１図は本発明の製造方法の一実施例にて対象とするか
ご形回転子の抜板を示す斜視図、＄２図はｔＡＬ１図の
抜板を積＃４ Ｌ、、た回転子鉄心を示す宗１視図、第
３図りｉ第２図の鉄心Ｃかご形巻線をダイキャストした
かご形回転子を下す斜視図、第４図は第３１ｙ１のＡ−
Ａ線に沿う矢視て初期の従来の場合のスロット部周辺を
示す拡大断面図、第５図は第４図のＢ−Ｂ紳Ｃ二沿う矢
視拡大断面図、第６図は第３図のｐ、−ｐ、ｍｔ二沿う
矢ネにで近年の従来の場合および本発明の一実施例の場
合の製造方法で製造１また共通の形状を示すスロット部
周辺の拡大断面図、第７図ｔ′ｉ第６図のＣ−Ｃ線Ｃユ
沿う矢視拡大断ｉｒ＋ｉ図である。
１・・・回転子抜板 ３・・・スロット４・・・回
転子鉄心 ５・・・冷却用羽根６・・・灼絡環
７・・・導体８・・・かご形巻線 川・・・
スロット絶縁層代理人 弁理士 井 上 −男
第 １ 図
第２図
第４図 ｗ４５図Figure 1 is a perspective view showing a punched squirrel-cage rotor to be used in an embodiment of the manufacturing method of the present invention, and Figure 2 is a #4 L rotor core made from the punched plates of tAL1. Figure 3 is a perspective view of the squirrel-cage rotor die-cast from the iron core C squirrel-cage winding shown in Figure 2. Figure 4 is a perspective view showing the A-
5 is an enlarged sectional view showing the vicinity of the slot portion in the early conventional case as seen along line A; FIG. 5 is an enlarged sectional view taken along line B-B-C2 in FIG. 4; FIG. 7 is an enlarged cross-sectional view of the vicinity of the slot portion showing a common shape according to the manufacturing method of the recent conventional case and one embodiment of the present invention, along the arrows p, -p, mt2 of . t'i is an enlarged cross-sectional ir+i view taken along the line C-C of FIG. 6; 1... Rotor blanking 3... Slot 4... Rotor core 5... Cooling vane 6... Burning ring
7...Conductor 8...Squirrel cage winding River...
Slot Insulating Layer Agent Patent Attorney Inoue - Male Figure 1 Figure 2 Figure 4 Figure W45
Claims (1)
着させ、このスロットにアルミニウム又はアルミニウム
合金の溶湯な注入してかご形巻線をダイキャストし、こ
の溶湯による酒液加熱により前記スロット内面に付着さ
せた１ｉＩ１１熱絶縁塗料をスロット内面Ｓ二焼付け、
かご形巻線と回転子鉄心との間１ニスロット絶縁層を形
成することを特徴とするかご形回転子の製造方法。 （２） 溶湯な注入する前に回転子鉄心のスロット内
面に付着させた耐熱絶縁塗料ｌ１含まれる解削を発散さ
せる程度に回転子鉄心を加熱する工程を有することを特
徴とする特＃’ｆ Ｍｆｌ求の範囲第１項記載のかご形
回転子の製造方法。[Claims] (11) A heat-resistant insulating paint is applied to the inner surface of the slots of the rotor core, and molten aluminum or aluminum alloy is injected into the slots to die-cast the cage-shaped windings. The 1iI11 thermal insulation paint that was attached to the inner surface of the slot by heating is baked on the inner surface of the slot S,
A method for manufacturing a squirrel-cage rotor, comprising forming one slotted insulating layer between a squirrel-cage winding and a rotor core. (2) A special feature characterized by having a step of heating the rotor core to an extent to diffuse the cutting contained in the heat-resistant insulating paint l1 attached to the inner surface of the slot of the rotor core before pouring the molten metal. A method for manufacturing a squirrel-cage rotor according to the scope of Mfl requirements in item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14687982A JPS5937869A (en) | 1982-08-26 | 1982-08-26 | Manufacture of squirrel-gage type rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14687982A JPS5937869A (en) | 1982-08-26 | 1982-08-26 | Manufacture of squirrel-gage type rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5937869A true JPS5937869A (en) | 1984-03-01 |
Family
ID=15417629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14687982A Pending JPS5937869A (en) | 1982-08-26 | 1982-08-26 | Manufacture of squirrel-gage type rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685113A (en) * | 2017-02-28 | 2017-05-17 | 合肥工业大学 | Cast-aluminum rotor gullet structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55111651A (en) * | 1979-02-22 | 1980-08-28 | Toshiba Corp | Process of slot insulator of cage rotor |
-
1982
- 1982-08-26 JP JP14687982A patent/JPS5937869A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55111651A (en) * | 1979-02-22 | 1980-08-28 | Toshiba Corp | Process of slot insulator of cage rotor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685113A (en) * | 2017-02-28 | 2017-05-17 | 合肥工业大学 | Cast-aluminum rotor gullet structure |
| CN106685113B (en) * | 2017-02-28 | 2019-04-23 | 合肥工业大学 | A kind of cast-aluminum rotor tooth slot structure |
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