JPS6166542A - Ventilated cooling device for rotary electric machine - Google Patents

Ventilated cooling device for rotary electric machine

Info

Publication number
JPS6166542A
JPS6166542A JP18841884A JP18841884A JPS6166542A JP S6166542 A JPS6166542 A JP S6166542A JP 18841884 A JP18841884 A JP 18841884A JP 18841884 A JP18841884 A JP 18841884A JP S6166542 A JPS6166542 A JP S6166542A
Authority
JP
Japan
Prior art keywords
core
stator
ventilation
rotor
air
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
Application number
JP18841884A
Other languages
Japanese (ja)
Inventor
Toyokazu Tomohiro
友広　豊和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP18841884A priority Critical patent/JPS6166542A/en
Publication of JPS6166542A publication Critical patent/JPS6166542A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

PURPOSE:To increase the cooling effect for the stator conductors and stator core of a rotary electric machine by communicating a stator ventilating hole with a core pack ventilation flue in the vicinity of the central portion of the core. CONSTITUTION:Two kinds of ventilation flues are provided. When a rotor spindle 1 rotates on one of the ventilation flues, the open air is led into an air inlet 10, which in turn flows via a stator communicating hole 16, a core pack ventilation flue 9, an air gap 4 and a rotor ventilation hole 3 to be exhausted from an air outlet 18. The air flows of the other ventilation flue is however on the contrary to that of the former, a first air which flows through the hole 16 cools a stator conductor 13 and a stator core 5, a second air which flows through the ventilation flue 9 cools the stator core 5, a third air which flows through the air gap 4 cools the conductor 13, the stator core 5, a rotor core 14 and a stator core 2, and a fourth air which flows through the communicating hole 13 and the ventilation hole 3 cools the rotor core 14 and 2.

Description

【発明の詳細な説明】 〔発明の技術分野〕 この発明は１回転ｍ機の通風冷却装置に関するものであ
り、さらに詳しくいうと、回転子通風孔、固定子通風孔
およびコアパック通風路がそれぞれ回転子軸と平行に形
成され、回転子軸に固定された冷却ファンにより通風冷
却する回転電機の通風冷却装置に関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a ventilation cooling device for a one-rotation machine, and more specifically, the rotor ventilation holes, stator ventilation holes, and core pack ventilation passages each have a The present invention relates to a ventilation cooling device for a rotating electrical machine that performs ventilation cooling using a cooling fan that is formed parallel to the rotor shaft and fixed to the rotor shaft.

〔従来技術〕[Prior art]

従来＆Ｃの種の装置として第１図、第２図に示すものが
あった。図において１回転子軸（１）に固定された回転
子コア（２）に回転子軸（１）と平行な複数の回転子通
風孔（３）が貫通して形成されており、エアギャップ（
４）を介して回転子コア（２）を四む固定子コア（５）
にも回転子軸（１）と平行な複数の固定子通風孔（６）
が貫通して形成されている。また固定子コア（５）とフ
レーム（７）の１１には仕切板（３）で仕切られた回転
子（ＩｉＩ＜１１と平行な複数のコアパック通風路（９
１が形成されている。フレーム（７）の両４１面一ζは
吸気人口ｑ１と排気出口（ロ）が設けられ、回転子軸（
１）に冷却ファンα２が固定されている。Conventionally, there have been devices of the &C type shown in FIGS. 1 and 2. In the figure, a plurality of rotor ventilation holes (3) parallel to the rotor shaft (1) are formed through a rotor core (2) fixed to the rotor shaft (1), and an air gap (
4) Stator core (5) passing through rotor core (2)
There are also multiple stator ventilation holes (6) parallel to the rotor axis (1).
is formed through it. In addition, the stator core (5) and the frame (7) have a plurality of core pack ventilation channels (9) parallel to the rotor (IiI<11) separated by the partition plate (3).
1 is formed. Both 41 sides of the frame (7) are provided with an intake population q1 and an exhaust outlet (b), and the rotor shaft (
A cooling fan α2 is fixed to 1).

（２）は固定子４体、α◆は回転子導体である。(2) is the four stators, and α◆ is the rotor conductor.

以上の構成により１回振子ＩＩ！Ｉ！（１）が回転する
と冷却ファン０３によりて外気が吸気入口ａ１かも吸込
まれ、この空気は固定子通風孔（６）、コアパック通ｒ
！Ｌ路＋９１．エアギャップ（４）１回転子通風孔（３
）を矢印で示すように平行に流れ、冷却ファンａ２を経
て排気出口（ロ）から排出される。固定子通風孔（６）
を流れろ空気は王に固定子導体Ｏｊ、ｆｌ定子コア転子
コア冷却し、コアパック通風路（９１を通”ろ空気は固
定子コア（５）を冷却し、エアギャップ（４）を流れる
空気は固定子導体（至）、（２Ｉ定子コア（５）１回転
千尋体仕４および回転子コア（２Ｊを冷却し、回転子通
風孔（３）を通る空気は＠転子導体Ｃ１４と＠転子コア
（２）を冷却する。しかし１以上の冷却効果は各部分で
相違する。第３川は各部分の１方向位裡の温度を定性的
に示したもので、実ｆｌａは固−電子通風孔（６）を通
る空気温度、破線すは固定子導体αｊの温度、梢１９ｅ
はコアパック通風路（９）を通る空気ｍ度を示す。With the above configuration, Pendulum II! I! When (1) rotates, the cooling fan 03 also sucks outside air into the intake inlet a1, and this air flows through the stator ventilation hole (6) and the core pack through the r
! L road +91. Air gap (4) 1 rotor ventilation hole (3
) flows in parallel as shown by the arrows, passes through the cooling fan a2, and is discharged from the exhaust outlet (b). Stator ventilation hole (6)
The air flows through the stator conductors Oj, fl stator core trochanter core, cools the core pack air passage (91), the air cools the stator core (5), and the air flows through the air gap (4). cools the stator conductor (to), (2I stator core (5) one rotation chihiro body 4 and the rotor core (2J), and the air passing through the rotor ventilation hole (3) is connected to @trochanter conductor C14 and @rotor The child core (2) is cooled. However, the cooling effect of one or more is different for each part. The third river qualitatively shows the temperature in one direction of each part, and the actual fla is the solid-electronic temperature. The temperature of the air passing through the ventilation hole (6), the dashed line is the temperature of the stator conductor αj, the top 19e
indicates the degree of air passing through the core pack ventilation passage (9).

と記の従来装置にあってｌま、エアギャップ（４）を流
れる空気はきわめて少量であることから。In the conventional device described above, the amount of air flowing through the air gap (4) is extremely small.

同定子コア（５）を冷却するために固定子通風孔（６）
を設けていた。しかし、固定子通風孔（６）を通る空気
のｍ度は、第３図に実ＩＩａで示すように。Stator ventilation holes (6) to cool the stator core (5)
was established. However, the degree of air passing through the stator ventilation holes (6) is as shown by IIa in FIG.

出口付近でかなり高温となり、固定子コア（５）も破線
すで示すようにバ醍になるという欠点があった０ 〔発明の概要〕 この発明は、以上の点に着目してなされたもので、固定
子通風孔とコアパック通風路をコア中央部付近で連通し
、軸方向に一対の連通孔を固定子コアに設け、さらにエ
アギャップと回転子通風孔をコア中央部付近で連通し、
軸方向に一対の連通孔を回転子コアに設け、！ｌ！にフ
レーム背部尋こ排気出口と吸気口とを設け、固定子通風
孔、及び回転子通風孔を流れる空気をフレーム端の吸気
口から流れる空気と、フレーム背部の吸気口から流れる
空気番ζよりて冷却し、固定子導体、固定子コアに対す
る冷却効果を向上した回転電機の通風冷却装置をｆ￥供
することを目的とするもＯ）である。There was a drawback that the temperature near the exit became quite high, and the stator core (5) also became damaged as shown by the broken line. , the stator ventilation holes and the core pack ventilation passages are communicated near the center of the core, a pair of communicating holes are provided in the stator core in the axial direction, and the air gap and the rotor ventilation holes are communicated near the center of the core,
A pair of communication holes are provided in the rotor core in the axial direction! l! An exhaust outlet and an intake port are provided in the back of the frame, and the air flowing through the stator ventilation hole and the rotor ventilation hole is divided into air flowing from the intake port at the end of the frame and air flowing from the intake port at the back of the frame. The object of the present invention is to provide a ventilation cooling device for a rotating electrical machine that improves the cooling effect on stator conductors and stator cores.

〔発明の実施例］ 以下、この発明の一実施例をル４図、第５図について説
明する６図において、旬？！は固定子コア（５ンのｇ部
に相対しフレーム（７１に設けられた吸気口、四は固定
子コア（５）の背ｔＡＩこ相対しフレーム（７）に設け
られた排気出口、（Ｉ邊は回転子ｌＩ＋（１１に嵌着さ
れた冷却ファンで、回転子コア（２）の両側にそれぞれ
１個宛取付けられている。[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be explained with reference to Fig. 4 and Fig. 5 in Fig. 6. ! 4 is the intake port provided in the frame (71) facing the g part of the stator core (5), 4 is the exhaust outlet provided in the frame (7) facing the back tAI of the stator core (5), At the sides are cooling fans fitted to the rotor lI+ (11), one on each side of the rotor core (2).

固定子通風孔（６）とコアベック通及入＃　（９１およ
びエアギャップ（４）をｌ「通し％固定子通風孔（６）
をコア中央部で部分するく−１に１方向薯こ一対の［Ｉ
！ｉｌ定子連う孔０時を固定子コア（５）の半径方向夢
ζ、ｒｆＡ定子コア（５１を貫通して設け、さらにエア
ギャップ（４）とＩＩｊｌｆｆ子通風孔（３）を連通し
１回転子通風孔（３）をコア中央部で部分する様に軸方
向に一対の回転子ｊ！！通孔αＳを１ｍ転子コア（２）
の半径方向に回を子コア（２）を貫通して設けてなるも
のである。すなわち、フレーム（７）の＃！部に吸気口
Ｑ（Ｉｅ設けている側のフレームｆｆ部に排気出口（財
）を、フレーム（７）の＠罷に排気出口ａｌ　＆　９１
でいろ側のフレーＡ　ｉｌｌ　１ｆｌｌに吸気口ａ１を
設けている。α９１．ｔコアパック通風路（９）を軸方
向に部分するための仕切板である。Stator ventilation hole (6) and core vec through-in # (91 and air gap (4) through l% Stator ventilation hole (6)
In the central part of the core, a pair of unidirectional latches [I
! The il stator connecting holes are provided in the radial direction of the stator core (5), passing through the rfA stator core (51), and the air gap (4) and IIjlff element ventilation hole (3) are connected for one rotation. A pair of rotors j!! The ventilation hole αS is 1 m in the trochanter core (2) in the axial direction so that the child ventilation hole (3) is located at the center of the core.
radially extending through the child core (2). That is, #! in frame (7)! The intake port Q (Ie) is provided on the side of the frame ff, and the exhaust outlet is placed on the frame (7).
An intake port a1 is provided in the fly A ill 1fll on the black side. α91. This is a partition plate for dividing the core pack ventilation passage (9) into sections in the axial direction.

なお、その餌のｍ成は従来と同様であるから説明を省略
する。Incidentally, the composition of the bait is the same as that of the conventional method, so a description thereof will be omitted.

次に作用、動作について説明する。まず１通風路が二部
ｐＡあり一方の通風路においては、回転子軸（１）が回
転すると冷却ファンｆｉ）によりて外気が吸気口ａｌｌ
から吸込まれ、この空気は固定子通風孔（６Ｉ、固定子
ｊ！ｌ！通孔ＯＧコアバッグ通風路（９１、エアギャッ
プ（４１１回転回転子通風孔）を矢印で示すように流れ
、排気出口Ｑ［ｌから排出される。更にもう一方の通！
ａ路は、上記通工格と全く逆の方向に空気は流れる。固
定子連通孔ＩＩｅ、固定子通風孔（６）を流れる空気は
主に固定子導体（至）、固定子コア（５）を冷却し、コ
アパック通風路（０）を通る空気は固定子コア（５）を
冷却し、エアギャップ（４）を流れる空気は固定子導体
α：１．ｌ１ＳＩ定子コア（５）、回転子導体α◆およ
び回転子コア（２）を冷即し、口伝千Ｍ通孔叩１回転子
通風孔（３）を通る空気は回転子導体９と回転子コア（
２）を冷却する。Next, the function and operation will be explained. First, one ventilation passage has two parts pA, and in one ventilation passage, when the rotor shaft (1) rotates, the cooling fan fi) brings outside air into all the intake ports.
This air flows through the stator ventilation hole (6I, stator j!l! ventilation hole OG core bag ventilation passage (91, air gap (411 rotor ventilation hole) as shown by the arrow), and then through the exhaust outlet. Q [Is discharged from l. Yet another passage!
In path a, air flows in the completely opposite direction to the above-mentioned passage. The air flowing through the stator communication hole IIe and the stator ventilation hole (6) mainly cools the stator conductor (to) and the stator core (5), and the air flowing through the core pack ventilation path (0) cools the stator core. (5) and the air flowing through the air gap (4) stator conductor α:1. The l1SI stator core (5), rotor conductor a (
2) Cool.

また、同時に低狙の外気が吸気口ａ１とｆｉ７１から。At the same time, low-targeted outside air comes from intake ports A1 and FI71.

矢印で示すように、流れ込み＠５図に示すように、コア
パック通風路（９）に流れる空気温度（を下げ、固定子
通風孔（６）を流れる空気＋１１度ａも下げる。Ｃｔ’
Ｌ　１ｍより固定子導体（１１の１度すを従来に比べて
太陽に下降させ、冷却効果を向上することができる。As shown by the arrow, the flow @ 5 As shown in Fig. 5, the temperature of the air flowing into the core pack ventilation passage (9) is lowered, and the air flowing through the stator ventilation hole (6) is also lowered by +11 degrees a.Ct'
L 1m The stator conductor (11 degrees) can be lowered to the sun compared to the conventional method, improving the cooling effect.

なｊｊＳＪ：記実施例では開放形晒弓電動ぬもξついて
示したが、　ｔｅａ放形なら、同期電動機で１１重電機
で、＃１りてもよく、また全閉形の場合で６１４ｔｉの
効果を秦する。NajjSJ: In the above example, an open-type bleached bow motor is shown, but if it is a tea-open type, it can be used as #1 with a synchronous motor and an 11 heavy electric machine, and in the case of a fully closed type, the effect of 614ti can be obtained. Qin.

〔発明の効果〕〔Effect of the invention〕

以とのように、この発明によれば、コアパック通風路お
よび固定子ａ爪孔、回転子通風孔を流れる空気の温度を
有効１ζ降下させて固定子。As described above, according to the present invention, the temperature of the air flowing through the core pack ventilation passage, the stator a-claw hole, and the rotor ventilation hole is effectively lowered by 1ζ.

及び回転子の冷却効果を向上し、絶縁物の劣化を抑制で
きる効果を有する。It also has the effect of improving the cooling effect of the rotor and suppressing deterioration of the insulator.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来装置の側断面図、＠２囚は第１図の■−ｎ
線に沼う平面での断市＠、＠３図はその温度分布線図、
第４図はこの発明の一実施例の側断面図、第５図はその
温度分布線図である。 ＋１１・・・回転軸、（２Ｊ・・・回転子コア、（３）
・・・回転子通風孔ｍ　（４１・・・エアギ中フブ、（
５）・・・固定子コア、（６）・・・ｌ？ｉ１ｍ子ａ［
Ｌ、（７１・・・フレーム、（９１・・・コアパック通
風路、ａｅ・・・吸気口、α力・・・排気出口、恒ｚ・
・・冷却ファン、口・・・固定子導体、０４・・・回転
子導体、四・・・回転千遅遅孔、０ト・固定子連通孔、
α力・・・フレーム背部吸気口、（ｌト・・フレーム背
部排気出口。 なお、各図中、同一符号は、同一または、相当部分を示
す。 代理人　　　大　　岩　　増　　雄 チ　ｌ（！［・ｉ）２　　閃 Ｔ　　　　１　　　　↑Figure 1 is a side sectional view of the conventional device, @2 is ■-n in Figure 1.
Diagram ＠＠＠3 shows the temperature distribution diagram on a flat plane that lies on the line.
FIG. 4 is a side sectional view of one embodiment of the present invention, and FIG. 5 is a temperature distribution diagram thereof. +11... Rotating shaft, (2J... Rotor core, (3)
... Rotor ventilation hole m (41 ... Air gear middle fan, (
5)...Stator core, (6)...l? i1m child a[
L, (71...Frame, (91...Core pack ventilation path, ae...Intake port, α force...Exhaust outlet, Constant z.
・・Cooling fan, mouth・Stator conductor, 04・Rotor conductor, 4・Rotation slow hole, 0・Stator communication hole,
α force: Intake port on the back of the frame, exhaust outlet on the back of the frame. In each figure, the same reference numerals indicate the same or equivalent parts. i) 2 Flash T 1 ↑

Claims (1)

【特許請求の範囲】[Claims] 固定子コアを貫通する固定子通風孔と、固定子コアとフ
レーム間に形成されるコアパック通風路と、回転子コア
を貫通する回転子通風孔とがそれぞれ回転子軸と平行に
複数形成され、上記回転子軸に固定された冷却ファンに
より通風冷却する回転電機の通風冷却装置において、上
記固定子コアの背部に相対して上記フレームに形成され
、上記コアパック通風路の軸方向に二分された一方側に
外気を導入する吸気口と、同じく他方側から内気を排出
する排気出口と、上記固定子コアを径方向に貫通して形
成され、上記固定子通風孔と上記コアパック通風路およ
びエアギャップとを連通し、コア中央部付近で固定子通
風孔を二分する様な一対の固定子連通孔と、上記回転子
コアを径方向に貫通して形成され、上記回転子通風孔と
上記エアギャップとを連通し、コア中央部付近で回転子
通風孔を二分する様な一対の回転子連通孔と、上記回転
子軸に嵌着され、外気を誘引し、１個は軸方向の端側に
、他の１個はフレームの背側に排出させる２個の冷却フ
ァンを備えてなることを特徴とする回転電機の通風冷却
装置。A plurality of stator ventilation holes penetrating the stator core, a core pack ventilation passage formed between the stator core and the frame, and a plurality of rotor ventilation holes penetrating the rotor core are each formed parallel to the rotor axis. , in a ventilation cooling device for a rotating electrical machine that performs ventilation cooling by a cooling fan fixed to the rotor shaft, the core pack ventilation passage is formed on the frame opposite to the back of the stator core, and is divided into two in the axial direction of the core pack ventilation passage. an inlet for introducing outside air into one side, an exhaust outlet for discharging inside air from the other side, and an air inlet opening passing through the stator core in the radial direction, the stator ventilation hole and the core pack ventilation passage; A pair of stator communication holes that communicate with the air gap and divide the stator ventilation hole into two near the center of the core; A pair of rotor communication holes that communicate with the air gap and divide the rotor ventilation hole into two near the center of the core, and one rotor communication hole that is fitted on the rotor shaft to attract outside air and one at the end in the axial direction. A ventilation cooling device for a rotating electrical machine, characterized in that it is equipped with two cooling fans, one on the side and one on the back side of the frame.
JP18841884A 1984-09-07 1984-09-07 Ventilated cooling device for rotary electric machine Pending JPS6166542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18841884A JPS6166542A (en) 1984-09-07 1984-09-07 Ventilated cooling device for rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18841884A JPS6166542A (en) 1984-09-07 1984-09-07 Ventilated cooling device for rotary electric machine

Publications (1)

Publication Number Publication Date
JPS6166542A true JPS6166542A (en) 1986-04-05

Family

ID=16223312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18841884A Pending JPS6166542A (en) 1984-09-07 1984-09-07 Ventilated cooling device for rotary electric machine

Country Status (1)

Country Link
JP (1) JPS6166542A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008148397A (en) * 2006-12-07 2008-06-26 Hitachi Ltd Rotary electric machine
US8878404B2 (en) 2009-12-17 2014-11-04 Abb Technology Ag Arrangement and method for cooling an electrical machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008148397A (en) * 2006-12-07 2008-06-26 Hitachi Ltd Rotary electric machine
US8878404B2 (en) 2009-12-17 2014-11-04 Abb Technology Ag Arrangement and method for cooling an electrical machine

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