JPH053643A - Full-enclosed fan-closed rotary electric machine - Google Patents
Full-enclosed fan-closed rotary electric machineInfo
- Publication number
- JPH053643A JPH053643A JP15497891A JP15497891A JPH053643A JP H053643 A JPH053643 A JP H053643A JP 15497891 A JP15497891 A JP 15497891A JP 15497891 A JP15497891 A JP 15497891A JP H053643 A JPH053643 A JP H053643A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- stator
- bracket
- rotor
- electric machine
- 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
Landscapes
- Mounting Of Bearings Or Others (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、冷却を改善した全閉
外扇形回転電機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a totally enclosed outer fan type electric rotating machine with improved cooling.
【０００２】[0002]
【従来の技術】図２は従来例の断面図であり、この全閉
外扇形回転電機は、回転子羽根１を端面に持つ回転子２
の外側に空隙を介して配置される固定子３と、この固定
子３を固着する固定子枠４の端部を覆うブラケット５
と、このブラケット５に取付けた軸受６で回転自在に支
承され前記回転子２を固着する軸７と、前記ブラケット
５を貫通する前記軸７の端部に取付けられる外扇８と、
この外扇８を覆うファンカバー９とからなり、前記固定
子３は固定子巻線３ａを持つ。2. Description of the Related Art FIG. 2 is a cross-sectional view of a conventional example. This fully-enclosed outer fan type rotary electric machine has a rotor 2 having rotor blades 1 on its end surface.
And a bracket 5 covering the end of the stator frame 4 to which the stator 3 is fixed, the stator 3 being arranged outside the space with a gap.
A shaft 7 rotatably supported by a bearing 6 attached to the bracket 5 to fix the rotor 2; and an external fan 8 attached to an end of the shaft 7 penetrating the bracket 5.
A fan cover 9 that covers the outer fan 8 is provided, and the stator 3 has a stator winding 3a.
【０００３】[0003]
【発明が解決しようとする課題】前記の従来例によれ
ば、固定子枠４とブラケット５とからなる外被の外側を
流れる外扇の冷却風により、回転電機は冷却される。し
かし軸受６の領域のブラケット５には冷却風は流れず、
また外被の中の内気は回転子羽根１による攪拌の程度に
とどまるので、軸受６の冷却はあまり良くない。そして
回転子２からの熱が軸７を介して軸受６に伝わるので、
軸受６及びその潤滑剤は、どちらかといえば常に高温に
曝される。また固定子巻線３ａも、主に固定子４の鉄心
を介して冷却されるのみで、冷却が良いとはいえない。According to the above-mentioned conventional example, the rotating electric machine is cooled by the cooling air of the outer fan flowing outside the outer casing composed of the stator frame 4 and the bracket 5. However, cooling air does not flow in the bracket 5 in the area of the bearing 6,
Further, since the inside air in the outer cover is only agitated by the rotor blades 1, the bearing 6 is not cooled well. And since the heat from the rotor 2 is transferred to the bearing 6 via the shaft 7,
The bearing 6 and its lubricant are rather always exposed to high temperatures. Further, the stator winding 3a is only cooled mainly through the iron core of the stator 4, and it cannot be said that the cooling is good.
【０００４】この発明の目的は、軸受と固定子巻線の冷
却を改善することができる全閉外扇形回転電機を提供す
ることにある。An object of the present invention is to provide a fully-closed outer fan type electric rotating machine capable of improving cooling of a bearing and a stator winding.
【０００５】[0005]
【課題を解決するための手段】この発明の全閉外扇形回
転電機は、回転子羽根１を端面に持つ回転子２の外側に
空隙を介して配置される固定子３と、この固定子３を固
着する固定子枠４の端部を覆うブラケット５と、このブ
ラケット５に取付けた軸受６で回転自在に支承され前記
回転子２を固着する軸７と、前記ブラケット５を貫通す
る前記軸７の端部に取付けられる外扇８と、この外扇８
を覆うファンカバー９とからなる全閉外扇形回転電機に
おいて、前記固定子枠４に環状の板からなるエアガイド
１１を取付けて前記軸７との間に軸方向の環状空気通路
１２を形成するとともに、前記エアガイド１１の内周部
を前記回転子羽根１に接近させ、外周部に円周方向に断
続する断続空気通路１３を形成するものである。A fully-closed fan-type rotary electric machine according to the present invention includes a stator 3 disposed outside a rotor 2 having a rotor blade 1 at an end face with a gap, and the stator 3. A bracket 5 that covers the end of the fixed stator frame 4, a shaft 7 that is rotatably supported by a bearing 6 attached to the bracket 5 and that fixes the rotor 2, and a shaft 7 that penetrates the bracket 5. The external fan 8 attached to the end, and the external fan 8
In a fully-closed fan-type rotary electric machine that includes a fan cover 9 that covers the fan cover 9, an air guide 11 made of an annular plate is attached to the stator frame 4 to form an axial air passage 12 between the stator frame 4 and the shaft 7. The inner peripheral portion of the air guide 11 is brought close to the rotor blades 1, and an interrupted air passage 13 is intermittently formed in the outer peripheral portion in the circumferential direction.
【０００６】[0006]
【作用】図１を参照して、エアガイド１１の内周部は、
前記回転子羽根１に接近しているから前記回転子羽根１
が発生するファン作用に吸込側と吐出側とを形成する。
そして吸込側に環状空気通路１２を、吐出側に断続空気
通路１３をもつことになり、回転電機の外被の中の内気
は、回転子羽根１、断続空気通路１３及び環状空気通路
１２、回転子羽根１の順に攪拌なくスムーズに環状に循
環する。このため、吸込空気はブラケット５の外周の内
面で冷却されてから軸受６の部分を通過して、軸受６を
よく冷却し、吐出空気は固定子巻線３ａの端部まで届い
てこれをよく冷却する。With reference to FIG. 1, the inner peripheral portion of the air guide 11 is
Since it is close to the rotor blades 1, the rotor blades 1
The suction side and the discharge side are formed in the fan action that causes the.
Since the suction side has the annular air passage 12 and the discharge side has the intermittent air passage 13, the inside air in the casing of the rotating electric machine is the rotor blade 1, the intermittent air passage 13 and the annular air passage 12, Circulate smoothly in the order of the daughter blades 1 without stirring. Therefore, the suction air is cooled by the inner surface of the outer periphery of the bracket 5 and then passes through the portion of the bearing 6 to cool the bearing 6 well, and the discharge air reaches the end portion of the stator winding 3a to be well cooled. Cooling.
【０００７】[0007]
【実施例】図１は実施例の断面図である。従来例と同一
符号をつけるものはおよそ同一機能を持ち、この全閉外
扇形回転電機は、回転子羽根１を端面に持つ回転子２の
外側に空隙を介して配置される固定子３と、この固定子
３を固着する固定子枠４の端部を覆うブラケット５と、
このブラケット５に取付けた軸受６で回転自在に支承さ
れ前記回転子２を固着する軸７と、前記ブラケット５を
貫通する前記軸７の端部に取付けられる外扇８と、この
外扇８を覆うファンカバー９とからなり、前記固定子３
は固定子巻線３ａを持つ。FIG. 1 is a sectional view of an embodiment. Those having the same reference numerals as those in the conventional example have approximately the same function. This fully-enclosed fan-type rotary electric machine has a stator 3 arranged outside of a rotor 2 having a rotor blade 1 at an end face, and a stator 3. A bracket 5 for covering the end of the stator frame 4 to which the stator 3 is fixed,
A shaft 7 rotatably supported by a bearing 6 attached to the bracket 5 and to which the rotor 2 is fixed, an external fan 8 attached to an end of the shaft 7 penetrating the bracket 5, and an external fan 8 And a fan cover 9 for covering the stator 3
Has a stator winding 3a.
【０００８】実施例の特徴的な構造として、前記固定子
枠４に環状のエアガイド１１を取付ける。このエアガイ
ド１１は、前記軸７との間に軸方向の環状空気通路１２
を形成するとともに、エアガイド１１の内周部を前記回
転子羽根１に接近させる。そして外周部に円周方向に断
続する断続空気通路１３を形成する。この断続空気通路
１３は、扇状の穴を円周方向に配列してもよいし、外側
から切り込むＵ字状の切欠けを円周方向に配列してもよ
く、固定子枠４との結合を可能にする。As a characteristic structure of the embodiment, an annular air guide 11 is attached to the stator frame 4. The air guide 11 has an axial annular air passage 12 between itself and the shaft 7.
And the inner peripheral portion of the air guide 11 is brought close to the rotor blade 1. An interrupted air passage 13 that is interrupted in the circumferential direction is formed in the outer peripheral portion. The intermittent air passage 13 may have fan-shaped holes arranged in the circumferential direction, or U-shaped notches cut from the outside may be arranged in the circumferential direction, so that the connection with the stator frame 4 can be achieved. to enable.
【０００９】このような構造によれば、エアガイド１１
の内周部は、前記回転子羽根１に接近しているから前記
回転子羽根１が発生するファン作用に吸込側と吐出側と
を形成する。そして吸込側に環状空気通路１２を、吐出
側に断続空気通路１３をもつことになり、回転電機の外
被の中の内気は、回転子羽根１、断続空気通路１３、環
状空気通路１２、回転子羽根１の順に攪拌なくスムーズ
に環状に循環する。このため、吸込空気はブラケット５
の外周の内面で冷却されてから軸受６の部分を通過し
て、軸受６をよく冷却し、吐出空気は固定子巻線３ａの
端部まで届いてこれをよく冷却する。According to such a structure, the air guide 11
Since the inner peripheral portion of the rotor blade is close to the rotor blade 1, it forms a suction side and a discharge side for the fan action generated by the rotor blade 1. Since the suction side has the annular air passage 12 and the discharge side has the intermittent air passage 13, the inside air in the casing of the rotating electric machine is the rotor blade 1, the intermittent air passage 13, the annular air passage 12, Circulate smoothly in the order of the daughter blades 1 without stirring. For this reason, the intake air is
After being cooled by the inner surface of the outer circumference of the bearing 6, the bearing 6 is well cooled and the bearing 6 is well cooled, and the discharged air reaches the end portion of the stator winding 3a and well cools it.
【００１０】[0010]
【発明の効果】この発明の全閉外扇形回転電機は、回転
子羽根を端面に持つ回転子の外側に空隙を介して配置さ
れる固定子と、この固定子を固着する固定子枠の端部を
覆うブラケットと、このブラケットに取付けた軸受で回
転自在に支承され前記回転子を固着する軸と、前記ブラ
ケットを貫通する前記軸の端部に取付けられる外扇と、
この外扇を覆うファンカバーとからなる全閉外扇形回転
電機において、前記固定子枠に環状の板からなるエアガ
イドを取付けて前記軸との間に軸方向の環状空気通路を
形成するとともに、前記エアガイドの内周部を前記回転
子羽根に接近させ、外周部に円周方向に断続する断続空
気通路を形成するものである。According to the fully-enclosed fan-type rotary electric machine of the present invention, a stator is disposed outside the rotor having rotor blades on the end faces with a gap, and an end portion of a stator frame to which the stator is fixed. A bracket that covers the shaft, a shaft that is rotatably supported by a bearing mounted on the bracket and that fixes the rotor, and an external fan that is attached to the end of the shaft that penetrates the bracket,
In a fully-closed outer fan type rotary electric machine including a fan cover for covering the outer fan, an air guide made of an annular plate is attached to the stator frame to form an annular air passage in the axial direction between the stator frame and the air guide. The inner peripheral portion of the air guide is brought close to the rotor blades, and a discontinuous air passage that is discontinuous in the circumferential direction is formed in the outer peripheral portion.
【００１１】このような構成によれば、エアガイドによ
る回転子羽根のファン作用の発生により、回転電機の外
被の中の内気は、回転子羽根、断続空気通路、環状空気
通路、回転子羽根１の順に攪拌なくスムーズに環状に循
環する。このため、吸込空気はブラケットの外周の内面
で冷却されてから軸受の部分を通過して、軸受をよく冷
却し、吐出空気は固定子巻線の端部まで届いてこれをよ
く冷却するという効果があり、特に軸受寿命が長くなる
という効果がある。According to this structure, the fan action of the rotor blades is generated by the air guide, so that the inside air in the outer casing of the rotating electric machine is rotator blades, intermittent air passages, annular air passages, and rotor blades. Circulate smoothly in the order of 1 without stirring. Therefore, the effect that suction air is cooled on the inner surface of the outer periphery of the bracket and then passes through the bearing to cool the bearing well, and discharge air reaches the end of the stator winding to cool it well There is an effect that the life of the bearing is extended especially.
【図１】実施例の断面図FIG. 1 is a sectional view of an embodiment.
【図２】従来例の断面図FIG. 2 is a sectional view of a conventional example.
１ 回転子羽根 ２ 回転子 ３ 固定子 ３ａ 固定子巻線 ４ 固定子枠 ５ ブラケット ６ 軸受 ７ 軸 ８ 外扇 １１ エアガイド １２ 環状空気通路 １３ 断続空気通路 1 Rotor Blade 2 Rotor 3 Stator 3a Stator Winding 4 Stator Frame 5 Bracket 6 Bearing 7 Axis 8 Outer Fan 11 Air Guide 12 Annular Air Passage 13 Intermittent Air Passage
Claims (1)
隙を介して配置される固定子と、この固定子を固着する
固定子枠の端部を覆うブラケットと、このブラケットに
取付けた軸受で回転自在に支承され前記回転子を固着す
る軸と、前記ブラケットを貫通する前記軸の端部に取付
けられる外扇と、この外扇を覆うファンカバーとからな
る全閉外扇形回転電機において、前記固定子枠に環状の
板からなるエアガイドを取付けて前記軸との間に軸方向
の環状空気通路を形成するとともに、前記エアガイドの
内周部を前記回転子羽根に接近させ、外周部に円周方向
に断続する断続空気通路を形成することを特徴とする全
閉外扇形回転電機。Claim: What is claimed is: 1. A stator, which is disposed outside a rotor having rotor blades on its end surface, with a gap, and a bracket which covers the end portion of a stator frame to which the stator is fixed. , A shaft rotatably supported by a bearing mounted on the bracket to fix the rotor, an external fan attached to an end of the shaft penetrating the bracket, and a fan cover covering the external fan. In the closed fan type rotating electric machine, an air guide made of an annular plate is attached to the stator frame to form an axial air passage in the axial direction between the stator frame and the inner peripheral portion of the air guide. And a closed air passage that is intermittently formed in the circumferential direction in the outer peripheral portion of the fan-shaped rotating electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15497891A JPH053643A (en) | 1991-06-27 | 1991-06-27 | Full-enclosed fan-closed rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15497891A JPH053643A (en) | 1991-06-27 | 1991-06-27 | Full-enclosed fan-closed rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH053643A true JPH053643A (en) | 1993-01-08 |
Family
ID=15596037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15497891A Pending JPH053643A (en) | 1991-06-27 | 1991-06-27 | Full-enclosed fan-closed rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH053643A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2400419A (en) * | 2003-04-12 | 2004-10-13 | Rolls Royce Plc | Air cooled bearing assembly |
| CN100433509C (en) * | 2006-09-22 | 2008-11-12 | 江门市金羚排气扇制造有限公司 | Small power cage type induction motor |
| JP2012110139A (en) * | 2010-11-18 | 2012-06-07 | Fuji Electric Co Ltd | Motor drive system |
| WO2017009001A1 (en) * | 2015-07-13 | 2017-01-19 | Bombardier Transportation Gmbh | An electric machine |
| CN110630486A (en) * | 2019-09-17 | 2019-12-31 | 科比传动技术（上海）有限公司 | Guide plate device and water pump all-in-one machine comprising same |
| CN112032065A (en) * | 2020-07-13 | 2020-12-04 | 宁波方太厨具有限公司 | Booster pump heat radiation structure |
-
1991
- 1991-06-27 JP JP15497891A patent/JPH053643A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2400419A (en) * | 2003-04-12 | 2004-10-13 | Rolls Royce Plc | Air cooled bearing assembly |
| GB2400419B (en) * | 2003-04-12 | 2006-07-19 | Rolls Royce Plc | Air cooled bearing |
| US7118321B2 (en) | 2003-04-12 | 2006-10-10 | Rolls-Royce Plc | Air cooled bearing |
| CN100433509C (en) * | 2006-09-22 | 2008-11-12 | 江门市金羚排气扇制造有限公司 | Small power cage type induction motor |
| JP2012110139A (en) * | 2010-11-18 | 2012-06-07 | Fuji Electric Co Ltd | Motor drive system |
| WO2017009001A1 (en) * | 2015-07-13 | 2017-01-19 | Bombardier Transportation Gmbh | An electric machine |
| CN107836073A (en) * | 2015-07-13 | 2018-03-23 | 勃姆巴迪尔运输有限公司 | Motor |
| CN110630486A (en) * | 2019-09-17 | 2019-12-31 | 科比传动技术（上海）有限公司 | Guide plate device and water pump all-in-one machine comprising same |
| CN112032065A (en) * | 2020-07-13 | 2020-12-04 | 宁波方太厨具有限公司 | Booster pump heat radiation structure |
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