JPS6241553Y2 - - Google Patents
Info
- Publication number
- JPS6241553Y2 JPS6241553Y2 JP2368682U JP2368682U JPS6241553Y2 JP S6241553 Y2 JPS6241553 Y2 JP S6241553Y2 JP 2368682 U JP2368682 U JP 2368682U JP 2368682 U JP2368682 U JP 2368682U JP S6241553 Y2 JPS6241553 Y2 JP S6241553Y2
- Authority
- JP
- Japan
- Prior art keywords
- ventilation
- wedge
- slot
- ventilation duct
- cooling
- 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
- 238000009423 ventilation Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 17
- 239000011800 void material Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
【考案の詳細な説明】
本考案は、回転電機の冷却装置の改良に関す
る。[Detailed Description of the Invention] The present invention relates to an improvement of a cooling device for a rotating electric machine.
電動機の効率アツプ、小形化は省エネ時代にと
つて必修の条件である。 Increasing the efficiency and downsizing of electric motors are essential conditions for the energy-saving era.
これに伴ない従来の中形以上の電動機・発電機
等の回転電機の冷却方式は第１図の構造をとる。 Accordingly, the conventional cooling system for rotating electric machines such as medium-sized or larger electric motors and generators has the structure shown in FIG.
１は固定子、２は回転子、３は回転軸、４はコ
イル、５は通風ダクト、７は冷却風（矢印は風向
を示す）である。 1 is a stator, 2 is a rotor, 3 is a rotating shaft, 4 is a coil, 5 is a ventilation duct, and 7 is a cooling air (arrows indicate the wind direction).
この固定子１および固定子２の鉄心に半径方向
通風ダクト５を間隔をおいて取り付け冷却の向上
を図つているが、この半径方向通風溝には通風抵
抗をもたらすウエツジやコア押えバー等があり、
その通風面積の半分を占めて冷却風の遮蔽物とな
つている。 Radial ventilation ducts 5 are attached at intervals to the iron cores of stator 1 and stator 2 to improve cooling, but these radial ventilation grooves have wedges, core holding bars, etc. that cause ventilation resistance. ,
It occupies half of the ventilation area and acts as a shield for cooling air.
ここにおいて、本考案は、この冷却風の遮蔽物
となる鉄心のスロツト内に嵌挿する楔の形状を最
も理想的にした回転電機の冷却装置を提供するこ
とを、その目的とする。 An object of the present invention is to provide a cooling device for a rotating electrical machine in which the shape of the wedge to be inserted into the slot of the iron core that serves as a shield for the cooling air is most ideal.
第２図は、本考案の一実施例の斜視図である。 FIG. 2 is a perspective view of an embodiment of the present invention.
筒形の固定子鉄心１と、この固定子鉄心の内部
に径方向の空隙を介して対向させて設けた回転子
（図示していない）鉄心のそれぞれに径方向の通
風ダクト７が形成されている。 A radial ventilation duct 7 is formed in each of a cylindrical stator core 1 and a rotor (not shown) core provided inside the stator core to face each other with a radial gap therebetween. There is.
鉄心１のスロツト内に巻装されたコイルの上部
にはそのスロツト内に嵌挿する楔８が打込まれ
る。 A wedge 8 is driven into the upper part of the coil wound in the slot of the iron core 1 to fit into the slot.
ところで本考案では、コイル押えの楔８を、通
風ダクト５部の位置にあたるところ９のみ一部を
切欠き空隙側の面を傾斜させた通風抵抗の少ない
断面形状にしてある。 In the present invention, the coil retainer wedge 8 is cut out only at the location 9 of the ventilation duct 5, and the surface on the gap side is inclined to give it a cross-sectional shape with less ventilation resistance.
第３図にその一部断面図を示す。図から分るよ
うに、従来は楔８は切り欠きがなくコイル押え部
も通風ダクト部も同一形状であつたから、ダクト
部５における楔８による隙間は３２〜３３間であ
つたのを、本考案によれば切欠き部９による隙間
３１〜３４間につまり、スロツト１０内における
コイル６の巻装される幅だけに拡大することがで
きる。 FIG. 3 shows a partial cross-sectional view. As can be seen from the figure, conventionally the wedge 8 had no notch and the coil holding part and the ventilation duct part had the same shape, so the gap created by the wedge 8 in the duct part 5 was between 32 and 33. According to the invention, the gap between the gaps 31 to 34 formed by the notch 9 can be expanded to the width within the slot 10 where the coil 6 is wound.
第４図は、楔８の風のガイドとしての切欠き部
９の断面の他の実施例の形態図である。 FIG. 4 is a cross-sectional view of another embodiment of the notch 9 of the wedge 8 as a wind guide.
９１は三角形状、９２は半形の一部、９３は台
形状をなす。 91 is triangular, 92 is a part of a half shape, and 93 is trapezoidal.
第５図ａ，ｂは、鉄心スロツト６内に嵌挿され
る楔８・切欠き部９の斜視図で、両者を１ピース
にした片（たとえば第５図ｂで示す１ピース５
１）５１，５２，５３…のように区分して打込ん
で形成してもよい（第５図ａ）。 FIGS. 5a and 5b are perspective views of the wedge 8 and notch 9 that are inserted into the core slot 6.
1) They may be formed by being divided into parts 51, 52, 53, etc. (Fig. 5a).
なお、これまでの説明では固定子側の楔のみに
ついて述べたが、巻線形の回転子における楔につ
いても同様である。ただし、回転子の場合は冷却
風が当るのではなく冷却風を排出するときの通風
抵抗を減らすことになる。 In addition, in the explanation so far, only the wedges on the stator side have been described, but the same applies to the wedges on the wound rotor. However, in the case of a rotor, the ventilation resistance is reduced when the cooling air is discharged rather than being hit by the cooling air.
しかして、固定子コイルもしくは回転子コイル
の反空隙側の面が平面である固定子もしくは回転
子においては、径方向通風ダクト部の前記固定子
コイルもしくは回転子コイルの反空隙側に、たと
えば円弧状、三角形状あるいは台形状のダクトピ
ースを設け、冷却風の通風抵抗を減少させるよう
にすれば、なお一層冷却効果を上げることができ
る。 In a stator or rotor in which the surface of the stator coil or rotor coil on the side opposite to the air gap is flat, for example, a circular If an arcuate, triangular or trapezoidal duct piece is provided to reduce the ventilation resistance of the cooling air, the cooling effect can be further improved.
かくして、本考案によれば、概して通風路が２
倍になり、風量は約２倍に増加し、コイル温度が
約15％減少し、冷却効率を大幅に増加させる。ま
た、さらにダクトの通風抵抗を減少させるため、
スロツト溝底を丸くするかあるいは丸形のピース
を取り付け、急拡大による通風抵抗を約1/10に減
少させ風量を増加させて冷却効果を促進できる。 Thus, according to the present invention, there are generally two ventilation channels.
The air volume is doubled, the coil temperature is reduced by about 15%, and the cooling efficiency is greatly increased. In addition, to further reduce the ventilation resistance of the duct,
By rounding the bottom of the slot groove or attaching a round piece, it is possible to reduce the ventilation resistance caused by sudden expansion to about 1/10, increase the air volume, and promote the cooling effect.
第１図は回転電機の冷却構造の概要図、第２図
は本考案の一実施例の斜視図、第３図はその一部
断面図、第４図はその楔の切欠き部断面図、第５
図ａ、第５図ｂは楔の打込み時の形態説明図であ
る。
１……固定子、２……回転子、３……回転軸、
４……コイル、５……通風ダクト、６……鉄心ス
ロツト、７……通風、８……楔、９，９１，９
２，９３……楔の切欠き部。
Fig. 1 is a schematic diagram of a cooling structure for a rotating electric machine, Fig. 2 is a perspective view of an embodiment of the present invention, Fig. 3 is a partial cross-sectional view thereof, and Fig. 4 is a cross-sectional view of a notch of the wedge. Fifth
FIG. 5A and FIG. 5B are explanatory diagrams of the configuration when driving a wedge. 1... Stator, 2... Rotor, 3... Rotating shaft,
4... Coil, 5... Ventilation duct, 6... Iron core slot, 7... Ventilation, 8... Wedge, 9, 91, 9
2,93...Wedge notch.
Claims (1)
径方向の空隙を介して対向させて設けた回転子鉄
心のそれぞれに径方向の通風ダクトを形成した回
転電機の冷却装置において、鉄心のスロツト内に
嵌挿する楔の前記通風ダクト部の横幅を前記スロ
ツト内に巻装されるコイルの横幅と同程度に細く
形成するとともに、その通風ダクト部の前記空隙
側の通風面の少なくとも一部を直線状もしくは円
弧状に傾斜させたことを特徴とする回転電機の冷
却装置。 In a cooling system for a rotating electric machine, a radial ventilation duct is formed in a cylindrical stator core and a rotor core that is disposed facing each other with a radial gap inside the stator core. The width of the ventilation duct portion of the wedge to be inserted into the slot is formed to be as narrow as the width of the coil wound in the slot, and at least a portion of the ventilation surface of the ventilation duct portion on the void side is formed. A cooling device for a rotating electrical machine, characterized in that the cooling device is inclined in a straight line or an arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2368682U JPS58127835U (en) | 1982-02-22 | 1982-02-22 | Cooling device for rotating electrical machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2368682U JPS58127835U (en) | 1982-02-22 | 1982-02-22 | Cooling device for rotating electrical machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58127835U JPS58127835U (en) | 1983-08-30 |
| JPS6241553Y2 true JPS6241553Y2 (en) | 1987-10-24 |
Family
ID=30035709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2368682U Granted JPS58127835U (en) | 1982-02-22 | 1982-02-22 | Cooling device for rotating electrical machines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58127835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283347A (en) * | 2013-07-05 | 2015-01-14 | 丰田自动车株式会社 | Rotating electric machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3808172B2 (en) * | 1997-06-02 | 2006-08-09 | 東芝三菱電機産業システム株式会社 | Rotating electric machine |
| JP5631742B2 (en) * | 2008-11-27 | 2014-11-26 | 株式会社東芝 | Rotating electric machine and its stator |
| JP2011087375A (en) * | 2009-10-14 | 2011-04-28 | Railway Technical Res Inst | Induction motor |
-
1982
- 1982-02-22 JP JP2368682U patent/JPS58127835U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283347A (en) * | 2013-07-05 | 2015-01-14 | 丰田自动车株式会社 | Rotating electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58127835U (en) | 1983-08-30 |
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