JPS61218333A - Air duct for rotary electric machine - Google Patents
Air duct for rotary electric machineInfo
- Publication number
- JPS61218333A JPS61218333A JP5844685A JP5844685A JPS61218333A JP S61218333 A JPS61218333 A JP S61218333A JP 5844685 A JP5844685 A JP 5844685A JP 5844685 A JP5844685 A JP 5844685A JP S61218333 A JPS61218333 A JP S61218333A
- Authority
- JP
- Japan
- Prior art keywords
- air duct
- core
- plate
- keep plate
- teeth
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、回転子外周にスロットヲ有し、そこに巻線を
挿入して、エアダクトの通風によって巻線および回転子
コアを冷却する回転電機（誘導機。Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to a rotating electrical machine ( induction machine.
直流機１回転型機子形交流機）のエアダクトに関する。It relates to the air duct of a DC machine (single-rotation type, armature type AC machine).
特公昭５２−３０６８２号に示すように、従来の回転子
エアダクトは、当板の片面にダクトピース全固定してお
り、この当板の厚さを変えることによって、コアパック
部分の風速を変えることは不可能であった。従って、テ
ース部分に比較してコアバック部分の風速が低下し、コ
アバック部分での熱伝達率が低下することがさけられな
い欠点があり、当板の厚さを変えることによってコアバ
ック部分の風速を調整する配慮がなされてなかった。As shown in Japanese Patent Publication No. 52-30682, in the conventional rotor air duct, the duct piece is completely fixed on one side of the plate, and by changing the thickness of this plate, the wind speed in the core pack part can be changed. was impossible. Therefore, there is an unavoidable disadvantage that the wind speed in the core back part is lower than that in the teeth part, and the heat transfer coefficient in the core back part is lowered. No consideration was given to adjusting the wind speed.
本発明の目的は回転電機のエアダクトにおいて、ダクト
ピースの高さ方向中央にダクトピース支持用当板を位置
させ、この当板の厚さを適切にすることによって、コア
バック部分の風速を増し、それによってコアパック部の
熱伝達率を増大してコアおよび巻線の冷却を良くしたエ
アダクトを提供することにある。The object of the present invention is to increase the wind speed in the core back part by positioning a duct piece support plate at the center of the duct piece in the height direction and making the thickness of this plate appropriate in the air duct of a rotating electrical machine. The object of the present invention is to provide an air duct which increases the heat transfer coefficient of the core pack portion and improves cooling of the core and windings.
従来のエアダクトは当板の片面に取付けられており、当
板自体は通風冷却に何等関係せず、単にダクトピースを
保持する役目しかなかった。一方、ダクトピースはテー
ス部分とコアバック部分にまたがって放射状に配置され
るので、スロットがなく通風断面がそれだけ広くなるコ
アバック部分は風速が低く、冷却効果が小で弗った。本
発明は当板をエアダクトの中央にすることにより、コア
ノ（ツク部分の風速を増大可能にしたものである。Conventional air ducts are attached to one side of the plate, and the plate itself has no role in ventilation cooling and merely serves to hold the duct piece. On the other hand, since the duct pieces are arranged radially across the teeth part and the core back part, the core back part, which has no slots and has a correspondingly wider ventilation cross section, has a low wind speed and a small cooling effect. The present invention makes it possible to increase the wind speed at the core by placing the plate in the center of the air duct.
第５図に従来品エアタークト平面図、第６図にその側面
図金示す。ダクトピース１は当板２に溶接で固定されて
おり、当板２は回転子コア３にはさまれた形で、キー４
によってスパイク−５に止められており、矢印の如く通
風径路を構成している。FIG. 5 is a plan view of a conventional air turret, and FIG. 6 is a side view thereof. The duct piece 1 is fixed to a contact plate 2 by welding, and the contact plate 2 is sandwiched between the rotor core 3 and the key 4.
It is fixed to the spike-5 by the arrow, and forms a ventilation path as shown by the arrow.
この冷却風はスロット６より内周側のコアノ（ツクを冷
却するとともに、スロット６の両側のティース８の部分
を冷却し、またスロット内の巻線７を冷却している。し
かし、ダクトピースの配置が第５図の如く放射状である
ため、ダクトピース１の厚さや当板２の厚さに関係なく
、ティース部とコアバック部の通風断面積が決まること
Ｋなり、スロット７のあるティース８の部分に比較して
、スロット７より内周のコアバック部分では通風断面積
が大となる分だけ風速が低下（約４０％）する。This cooling air cools the duct piece on the inner circumferential side of the slot 6, as well as the teeth 8 on both sides of the slot 6, and also cools the winding 7 inside the slot. Since the arrangement is radial as shown in Fig. 5, the ventilation cross-sectional area of the teeth part and the core back part is determined regardless of the thickness of the duct piece 1 and the thickness of the contact plate 2. Compared to the core back portion on the inner periphery of the slot 7, the wind speed decreases (about 40%) due to the larger ventilation cross-sectional area.
このため風速の約０．８乗に比例する回転子コア３の表
面の熱伝達率も低く（約４８チ）なり、コアバックにお
いてはティース８部分と同等の冷却効果を得ることがで
きなかった。For this reason, the heat transfer coefficient on the surface of the rotor core 3, which is proportional to the wind speed to the 0.8th power, was also low (about 48 cm), and it was not possible to obtain the same cooling effect as the teeth 8 part at the core back. .
第４図は従来のエアダクトの構造の立体図を示す。第２
図は本発明のエアダクトの平面図、第３図は本発明のエ
アダクトの側面図、第１図はその立体図を示す。ダクト
ピース１は当板２にエアダクトの高さ方向中央で溶接に
より固定され、当板２はボルト９によって回転子コア３
に固定される。FIG. 4 shows a three-dimensional view of the structure of a conventional air duct. Second
The figure shows a plan view of the air duct of the invention, FIG. 3 shows a side view of the air duct of the invention, and FIG. 1 shows a three-dimensional view thereof. The duct piece 1 is fixed to the contact plate 2 by welding at the center in the height direction of the air duct, and the contact plate 2 is fixed to the rotor core 3 by bolts 9.
Fixed.
当板２の内径は回転子コア３の内径より大とし、端面を
矢形にとがらせて風の通風抵抗を小としている。本発明
によれば当板２の厚さを適切にすることによって、コア
バック部分の通風断面積をティース８部分とは関係なく
加減できるので、コアバック部分の風速をティース８部
分と同等にすることが可能であり、従来品より約２倍高
い熱伝達率を得ることができる。これによって、ティー
ス８部分だけでなくコアバック部分でも高い冷却効果が
得られることになり、回転子コア３と巻線７の温度を大
幅に下げるととができる。The inner diameter of the contact plate 2 is made larger than the inner diameter of the rotor core 3, and the end face is pointed in an arrow shape to reduce the resistance to airflow. According to the present invention, by making the thickness of the plate 2 appropriate, the ventilation cross-sectional area of the core back portion can be adjusted independently of the teeth 8 portion, so that the wind speed of the core back portion is made equal to that of the teeth 8 portion. It is possible to obtain a heat transfer coefficient approximately twice as high as that of conventional products. As a result, a high cooling effect can be obtained not only in the teeth 8 portion but also in the core back portion, and the temperature of the rotor core 3 and the winding 7 can be significantly lowered.
本発明により回転コアバックエアダクトの熱伝達率は従
来の２倍にできる。According to the present invention, the heat transfer coefficient of the rotating core back air duct can be doubled compared to the conventional one.
これによって回転子コアの温度上昇は、従来の７０％、
回転子巻線の温度上昇は８５チまで低下できる。As a result, the temperature rise in the rotor core is reduced by 70% compared to conventional methods.
The temperature rise of the rotor winding can be reduced to 85 degrees.
この効果により、従来と同等の温度上昇を許容する設計
とした場合は回転子コアの電気鋼板の重量を８５チ、回
転子巻線の鋼重量は約９０％に低ｉなる。Due to this effect, if the design is designed to allow the same temperature rise as in the past, the weight of the electrical steel plate of the rotor core will be reduced to 85 cm, and the weight of the steel of the rotor winding will be reduced to about 90%.
以上、本発明のエアダクトは回転子に適用した場合で説
明したが、固定子についても全く同じように適用できる
。Although the air duct of the present invention has been described above in a case where it is applied to a rotor, it can also be applied to a stator in exactly the same way.
第１図は本発明の立体図、第２図は本発明の平面図、第
３図は本発明の側面図、第４図は従来品の立体図、第５
図は従来品の平面図、第６図は従来品の側面図である。
１・・・ダクトピース、２・・・当板、３・・・回転子
コア、４・・・キー、５・・・スパ（ダ−，６・・・ス
ロット、７・・・回転子巻線、８・・・ティース、９・
・・ボルト。Fig. 1 is a three-dimensional view of the present invention, Fig.2 is a plan view of the present invention, Fig.3 is a side view of the present invention, Fig.4 is a three-dimensional view of the conventional product, and Fig.5
The figure is a plan view of the conventional product, and FIG. 6 is a side view of the conventional product. DESCRIPTION OF SYMBOLS 1...Duct piece, 2...Backing plate, 3...Rotor core, 4...Key, 5...Spa (dar, 6...Slot, 7...Rotor winding Line, 8...Teeth, 9.
··bolt.
Claims (1)
る回転電機の回転子または固定子コアのエアダクトにお
いて、ダクトピースの幅方向中央部にエアダクトピース
を固定するための円板状またはセグメント状当板を有し
、この円板状またはセグメント状当板の内周側縁を刃形
形状としたことを特徴とする回転電機のエアダクト。1. In the air duct of the rotor or stator core of a rotating electric machine, which has a slot on the outer periphery of the rotor and into which the winding is inserted, a disc-shaped or An air duct for a rotating electrical machine, characterized in that it has a segment-shaped backing plate, and the inner peripheral side edge of the disc-shaped or segment-shaped backing plate is shaped like a blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5844685A JPH0652977B2 (en) | 1985-03-25 | 1985-03-25 | Air duct of rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5844685A JPH0652977B2 (en) | 1985-03-25 | 1985-03-25 | Air duct of rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61218333A true JPS61218333A (en) | 1986-09-27 |
| JPH0652977B2 JPH0652977B2 (en) | 1994-07-06 |
Family
ID=13084630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5844685A Expired - Lifetime JPH0652977B2 (en) | 1985-03-25 | 1985-03-25 | Air duct of rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0652977B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004093292A3 (en) * | 2003-04-16 | 2005-03-03 | Siemens Ag | Electric machine provided with cooled metal stacks and windings of the stator rotor thereof |
| JP2013066341A (en) * | 2011-09-20 | 2013-04-11 | Toshiba Mitsubishi-Electric Industrial System Corp | Rotary electric machine |
| JP2015111965A (en) * | 2013-12-06 | 2015-06-18 | 東芝三菱電機産業システム株式会社 | Rotor of dynamo-electric machine |
-
1985
- 1985-03-25 JP JP5844685A patent/JPH0652977B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004093292A3 (en) * | 2003-04-16 | 2005-03-03 | Siemens Ag | Electric machine provided with cooled metal stacks and windings of the stator rotor thereof |
| US7411323B2 (en) | 2003-04-16 | 2008-08-12 | Siemens Aktiengesellschaft | Electrical machine having cooled laminated stator and rotor cores and windings |
| JP2013066341A (en) * | 2011-09-20 | 2013-04-11 | Toshiba Mitsubishi-Electric Industrial System Corp | Rotary electric machine |
| JP2015111965A (en) * | 2013-12-06 | 2015-06-18 | 東芝三菱電機産業システム株式会社 | Rotor of dynamo-electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0652977B2 (en) | 1994-07-06 |
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