JPS61180545A - Rotary electric machine - Google Patents

Rotary electric machine

Info

Publication number
JPS61180545A
JPS61180545A JP1996785A JP1996785A JPS61180545A JP S61180545 A JPS61180545 A JP S61180545A JP 1996785 A JP1996785 A JP 1996785A JP 1996785 A JP1996785 A JP 1996785A JP S61180545 A JPS61180545 A JP S61180545A
Authority
JP
Japan
Prior art keywords
cooling air
stator core
cooler
fan
duct
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
JP1996785A
Other languages
Japanese (ja)
Inventor
Koji Tanaka
幸二 田中
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1996785A priority Critical patent/JPS61180545A/en
Publication of JPS61180545A publication Critical patent/JPS61180545A/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
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

PURPOSE:To improve cooling effect by separating cooling air which cooled a stator core end from other cooling air to bypass a cooler, and feeding it to a suction side of a fan, thereby increasing cooling air amount flowed to the stator core end. CONSTITUTION:In a rotary electric machine in which cooling air which passed an intermediate duct 2 of a stator core 1 is circulated in a vent passage including a cooler 5 and a fan 4, a bypass route is provided in the cooler 5. Cooling air which passed the end duct 3 of the core 1 is fed through the bypass route to the suction side of the fan 4 as it is. Thus, since the ventilating resistance of cooling air passing the duct 3 is reduced and ventilating head is increased, the stator core end having the most heat generation amount can be efficiently cooled.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は回転電気機械の電磯子鉄心端部構造に係シ、特
に、大容量タービン発電機に便用するに好適な電機子鉄
心端部冷却構造に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an armature core end structure of a rotating electrical machine, and in particular to an armature core end cooling structure suitable for use in a large-capacity turbine generator. Regarding structure.

〔発明の背景〕[Background of the invention]

従来のタービン発電機の電磯子鉄心端部廻９の構造を第
２図に示す。コア端部はよく知られているように軸方向
洩れ磁束によシ、過熱さｎやすい。FIG. 2 shows the structure of the electric isogo iron core end portion 9 of a conventional turbine generator. As is well known, the core end is susceptible to axial leakage magnetic flux and is susceptible to overheating.

この部分は、ファン４から排気されたカスが、エンドダ
クト３、及び、中間ダクト２を通ることによシ冷却され
る。その冷却ガスは、他の冷却ガスと一諸になって、ク
ー２５を通過してファン４の吸込側に導かれる。実用昭
５６−１５８７２号公報では端部のみを別の回路にする
冷却がなされている。This part is cooled by the waste exhausted from the fan 4 passing through the end duct 3 and the intermediate duct 2. The cooling gas passes through the cooler 25 together with other cooling gases and is guided to the suction side of the fan 4. In Japanese Patent Application Publication No. 56-15872, cooling is performed by using a separate circuit only at the end.

〔発明の目的〕[Purpose of the invention]

本発明の目的は固定子鉄心端部の通風量を増加させて、
冷却能力を増大して、固定子鉄心端部を冷却する構造を
提供することにある。The purpose of the present invention is to increase the amount of ventilation at the end of the stator core,
The object of the present invention is to provide a structure that increases cooling capacity and cools the ends of a stator core.

〔発明の概要〕[Summary of the invention]

本発明は通風ファンのヘッドを効率よく利用して固定子
鉄心端部の通風量を増加させようとするものである。The present invention aims to increase the amount of ventilation at the end of the stator core by efficiently utilizing the head of the ventilation fan.

〔発明の実施例〕[Embodiments of the invention]

本発明の一実施例を５１！１図に示す。ファン４よシ掃
気された冷却風はエンドダクト３および固定子鉄心１の
端部の中間ダクト２を通って、他の中間ダクト２の通風
と分離され、そのまま、クーラ５を通らずにファン４の
吸込側に導かれる。こうすることにより、クーラ５及び
クーラ５に導くための通風孔等の通風損失が無くなる。An embodiment of the present invention is shown in Figure 51!1. The cooling air scavenged by the fan 4 passes through the end duct 3 and the intermediate duct 2 at the end of the stator core 1, is separated from the ventilation from other intermediate ducts 2, and continues to the fan 4 without passing through the cooler 5. is guided to the suction side of the By doing so, the loss of ventilation caused by the cooler 5 and the ventilation holes for guiding the air to the cooler 5 is eliminated.

従って、固定子鉄心１の端部への通風のためのヘッドを
従来構造よりも大きくとることができ、その結果、通風
量を増大することができる。固定子鉄心１の端部を冷却
したガスはクー２５をバイパスして冷却されないが、こ
の部分の通風量、及び、損失は共に全体の通風量及び損
失からみると非常に小さいので、クーラ５の入口で他の
冷却ガスと混じり合って問題にならない。Therefore, the head for ventilation to the end of the stator core 1 can be made larger than in the conventional structure, and as a result, the amount of ventilation can be increased. Although the gas that has cooled the end of the stator core 1 bypasses the cooler 25 and is not cooled, the air flow and loss in this part are both very small compared to the overall air flow and loss, so the cooler 5 is not cooled. It mixes with other cooling gases at the inlet and does not cause problems.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、固定子端部の通風量を増加させて、こ
の部分を効果的に冷却することができる。According to the present invention, the amount of ventilation at the end of the stator can be increased to effectively cool this portion.

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

第１図は本発明の一実施例の縦断面図、第２図は従来の
固定子端部冷却構造を示す縦断面図である、 １・・・固定子鉄心、２・・・中間ダクト、３・・・エ
ンドダクト、４・・・ファン、５・・・クーラ。 代理人　弁理士　小川勝男　　ゾ 高１０ ．５ 躬２０FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing a conventional stator end cooling structure. 1... Stator core, 2... Intermediate duct, 3... End duct, 4... Fan, 5... Cooler. Agent: Patent attorney Katsuo Ogawa, 10th year of high school. 5 20

Claims (1)

【特許請求の範囲】[Claims] １、固定子鉄心を軸方向に分割して径方向に通風を可能
とする通風ダクトと、前記固定子鉄心を冷却した温ガス
を冷却するクーラ及び冷却ガスを循環させるフアンを備
えた回転電気機械において、固定子端部を冷却した前記
温ガスを前記クーラをバイパスして前記フアンの吸込側
に導いたことを特徴とする回転電気機械。1. A rotating electric machine equipped with a ventilation duct that divides the stator core in the axial direction and allows ventilation in the radial direction, a cooler that cools the hot gas that has cooled the stator core, and a fan that circulates the cooling gas. 2. A rotating electric machine according to claim 1, wherein the warm gas that has cooled the end of the stator is guided to the suction side of the fan, bypassing the cooler.
JP1996785A 1985-02-06 1985-02-06 Rotary electric machine Pending JPS61180545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1996785A JPS61180545A (en) 1985-02-06 1985-02-06 Rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1996785A JPS61180545A (en) 1985-02-06 1985-02-06 Rotary electric machine

Publications (1)

Publication Number Publication Date
JPS61180545A true JPS61180545A (en) 1986-08-13

Family

ID=12013958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1996785A Pending JPS61180545A (en) 1985-02-06 1985-02-06 Rotary electric machine

Country Status (1)

Country Link
JP (1) JPS61180545A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017535242A (en) * 2014-11-18 2017-11-24 シーメンス アクティエンゲゼルシャフト Cooling of the shaft end region of the stator in the rotating electrical machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017535242A (en) * 2014-11-18 2017-11-24 シーメンス アクティエンゲゼルシャフト Cooling of the shaft end region of the stator in the rotating electrical machine

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