JPS61102149A - Ventilator for rotary electric machine with totally-enclosed-fan - Google Patents

Ventilator for rotary electric machine with totally-enclosed-fan

Info

Publication number
JPS61102149A
JPS61102149A JP22237384A JP22237384A JPS61102149A JP S61102149 A JPS61102149 A JP S61102149A JP 22237384 A JP22237384 A JP 22237384A JP 22237384 A JP22237384 A JP 22237384A JP S61102149 A JPS61102149 A JP S61102149A
Authority
JP
Japan
Prior art keywords
fan cover
wind tunnel
air channel
external fan
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
JP22237384A
Other languages
Japanese (ja)
Inventor
Akiharu Yagyu
柳生 明春
Morikazu Kurita
栗田 盛一
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 JP22237384A priority Critical patent/JPS61102149A/en
Publication of JPS61102149A publication Critical patent/JPS61102149A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/14Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle

Landscapes

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

Abstract

PURPOSE:To easily replace an air channel, by forming the air channel to be freely detachable from an enclosed fan cover and an air cooler. CONSTITUTION:An air channel 8a is fixed to an enclosed fan cover 7 and an air cooler 5 with fastening bolts 11. In this manner, the air channel 8a is fitted with the bolts 11 to be freely detachable from the enclosed fan cover 7 and the air cooler 5, and the air channel 8a only can be exchanged when the length in the axial direction of the air channel 8a is changed, and the air channel 8a can be easily replaced. The air channel 8a and the enclosed fan cover 7 are separately produced, and so the welding work for fitting an air flow smoothening plate 9 inside the air channel 8a and the enclosed fan cover 7 can be facilitated.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は全閉外扇形回転電機の通風装置に関するもので
ある。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a ventilation device for a totally enclosed external fan-shaped rotating electric machine.

〔発明の背景〕[Background of the invention]

第2図には横形の全閉外扇形回転電機の通風装置の従来
例が示されている。同図に示されているように通風装置
は#lを有する回転子2および回軸1上に設けられ、か
つ外部から冷却風を導入する外扇6と、この外扇6を囲
んで設けられた外扇カバー7と、この外扇カバー7と空
気冷却器5との間を連通する風洞8とから構成されてい
る。なお同図において9は整風板である。
FIG. 2 shows a conventional example of a ventilation device for a horizontal totally enclosed external fan-shaped rotating electric machine. As shown in the figure, the ventilation device is provided on the rotor 2 and the rotating shaft 1 having #l, and is provided with an external fan 6 that introduces cooling air from the outside, and surrounding this external fan 6. It is comprised of an external fan cover 7 and a wind tunnel 8 that communicates between the external fan cover 7 and the air cooler 5. In addition, in the figure, 9 is a wind regulating plate.

このように構成された通風装置で、外扇6により導入さ
れた冷却風を空気冷却器5へ導くための風洞8が外扇カ
バー7と一体構造になっていた。
In the ventilation device configured in this manner, the wind tunnel 8 for guiding the cooling air introduced by the external fan 6 to the air cooler 5 is integrally constructed with the external fan cover 7.

このため風洞8の部分のみを軸方向に長くする場合に、
風洞8および外扇カバー7の全体を変更しなければなら
なかった。
Therefore, when only the wind tunnel 8 portion is lengthened in the axial direction,
The entire wind tunnel 8 and outer fan cover 7 had to be changed.

すなわち軸受lOに例えばすベリ軸受を使用すると、軸
受10の軸方向長さはころがり軸受に比べて極めて大と
なる。またころがり軸受およびすベリ軸受の各々につい
てもその軸受寸法により、軸受10の軸方向長さには種
々のものが存在するこのような軸受10の軸方向長さの
変更に応じて風洞8の長さも変更しなければならないが
、風洞8は外扇カバー7と一体にしであるので、風洞8
および外扇カバー7の全体を変更しなければならない。
That is, if a sliding bearing is used as the bearing IO, for example, the axial length of the bearing 10 will be extremely large compared to a rolling bearing. Furthermore, there are various axial lengths of the bearing 10 depending on the dimensions of the rolling bearing and the sliding bearing. However, since the wind tunnel 8 is integrated with the outer fan cover 7, the wind tunnel 8 must be changed.
Also, the entire outer fan cover 7 must be changed.

この風洞8の軸方向長さの変更対策として使用し得る最
大の軸方向長さの軸受10に合わせて風洞8の長さを決
めておけば、このようにした風洞8および外扇カバー7
は軸方向長さの短かい他の軸受10についてもそのまま
使用できる。しかしこの場合に回転電機全体の軸方向長
さが必要以上に長くなり、回転電機の据付寸法および輸
送寸法上望ましくない。
As a measure to change the axial length of the wind tunnel 8, if the length of the wind tunnel 8 is determined according to the bearing 10 with the maximum axial length that can be used, the wind tunnel 8 and the outer fan cover 7 can be
can also be used as is for other bearings 10 having a shorter axial length. However, in this case, the axial length of the entire rotating electrical machine becomes longer than necessary, which is undesirable in terms of installation and transportation dimensions of the rotating electrical machine.

なおこの関係のものとして実開昭58−115875号
In this connection, Utility Model Application Publication No. 58-115875.

実開昭58−115877号および特開昭56−535
56号公報等がある。
Utility Model Publication No. 58-115877 and Japanese Patent Application Publication No. 56-535
There are publications such as Publication No. 56.

〔発明の目的〕[Purpose of the invention]

本発明は以上の点に鑑みなされたものであり、風洞の取
り換えを容易にすることを可能とした全閉外扇形回転電
機の通風装置を提供することを目的とするものである。
The present invention has been made in view of the above points, and it is an object of the present invention to provide a ventilation device for a completely enclosed external fan-shaped rotating electrical machine that allows easy replacement of the wind tunnel.

〔発明の概要〕[Summary of the invention]

すなわち本発明は回転電機の上部に設置された空気冷却
器へ冷却風を送入する冷却風送入扇が前記回転電機の軸
上に設けられ、かつ外部から前記冷却風を導入する外扇
と、この外扇を囲んで設けられた外扇カバーと、この外
扇カバーと前記空気冷却器との間を連通ずる風洞とから
構成される全閉外扇形回転電機の通風装置において、前
記風洞が、前記外扇カバーおよび前記空気冷却器と着脱
自在に形成されたものであることを特徴とするものであ
り、これによって風洞は外扇カバーおよび空気冷却器と
着脱自在に形成されるようになる。
That is, the present invention provides a cooling air supply fan that sends cooling air to an air cooler installed in the upper part of a rotating electrical machine, and an external fan that introduces the cooling air from the outside. , in a ventilation system for a completely enclosed external fan-shaped rotating electric machine, which includes an external fan cover provided surrounding the external fan, and a wind tunnel communicating between the external fan cover and the air cooler, the wind tunnel: It is characterized in that it is formed to be detachably attached to the outer fan cover and the air cooler, so that the wind tunnel is formed to be detachable from the outer fan cover and the air cooler.

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

以下、図示した実施例に基づいて本発明を説明する。第
1図には本発明の一実施例が示されている。なお従来と
同じ部品には同じ符号を付したので説明を省略する1本
実施例では風洞8aを外扇カバー7および空気冷却器5
と着脱自在に形成した。このようにすることにより風洞
8aは外扇カバー7および空気冷却器5と着脱自在に形
成されるようになって、風洞8aの取り換えを容易にす
ることを可能とした全閉外扇形回転電機の通風装置を得
ることができる。
The present invention will be explained below based on the illustrated embodiments. FIG. 1 shows an embodiment of the invention. In this embodiment, the same parts as the conventional one are given the same reference numerals, and the explanation will be omitted.
It is designed to be detachable. By doing so, the wind tunnel 8a is formed to be detachable from the outer fan cover 7 and the air cooler 5, making it possible to easily replace the wind tunnel 8a. You can get the equipment.

すなわち風洞8aを外扇カバー7および空気冷却器5に
ボルト11締めで固定した。このようにすることにより
風洞8aはボルト11で外扇カバー7および空気冷却器
5に着脱自在に取り付けられるようになって、風洞8a
の軸方向長さを変更する場合には風洞8aのみが変更で
きるようになり、風洞8aの取り換えを容易にすること
ができる。またこのような風洞8aと外扇カバー7とは
分割して製作するので、風洞8a内部および外扇カバー
7内部の整風板9の取り付は溶接作業を容易にすること
ができる。
That is, the wind tunnel 8a was fixed to the outer fan cover 7 and the air cooler 5 by tightening bolts 11. By doing so, the wind tunnel 8a can be detachably attached to the outer fan cover 7 and the air cooler 5 with the bolts 11, and the wind tunnel 8a
When changing the axial length of the wind tunnel 8a, only the wind tunnel 8a can be changed, making it easy to replace the wind tunnel 8a. Further, since the wind tunnel 8a and the outer fan cover 7 are manufactured separately, welding work for attaching the air baffle plates 9 inside the wind tunnel 8a and the outer fan cover 7 can be facilitated.

第3図には本発明の他の実施例が示されている。Another embodiment of the invention is shown in FIG.

本実施例は前述の実施例の軸受と異なり、軸受10のこ
ろがり軸受より軸方向長さの大きいすベリ軸受を使用し
た場合である。この場合にも風洞のみを交換し、交換し
た風洞8aをボルト11で外扇カバー7および空気冷却
器5に着脱自在に取り付ければよくなって、前述の場合
と同様な作用効果を奏することができる。
This embodiment differs from the bearings of the previous embodiments in that a flat bearing having a longer axial length than the rolling bearing of the bearing 10 is used. In this case as well, it is only necessary to replace only the wind tunnel and detachably attach the replaced wind tunnel 8a to the outer fan cover 7 and the air cooler 5 with bolts 11, and the same effect as in the above case can be achieved. .

なおこれら各実施例は横形の全閉外扇形回転電機に適用
した場合であるが、これのみに限るものではなく立形の
全閉外扇形回転電機にも適用できる。
Although each of these embodiments is applied to a horizontal totally enclosed external fan-shaped rotating electrical machine, the present invention is not limited to this and can also be applied to a vertical totally enclosed external sector rotating electrical machine.

〔発明の効果〕〔Effect of the invention〕

上述のように本発明は風洞の取り換えが容易となって、
風洞の取り換えを容易にすることを可能とした全閉外扇
形回転電機の通風装置を得ることができる。
As mentioned above, the present invention makes it easy to replace the wind tunnel,
It is possible to obtain a ventilation device for a completely enclosed external fan-shaped rotating electrical machine that allows easy replacement of the wind tunnel.

面画の簡単な説明 第1図は本発明の全閉外扇形回転電機の通風装置の一実
施例の縦断側面図、第2図は従来の全閉外扇形回転電機
の通風装置の縦断側面図、第3図は本発明の全閉外扇形
回転電機の通風装置の他の実施例の縦断側面図である。
Brief explanation of screen drawings FIG. 1 is a longitudinal sectional side view of an embodiment of the ventilation device for a totally enclosed external fan-shaped rotating electrical machine of the present invention, and FIG. 2 is a longitudinal sectional side view of a conventional ventilation device for a totally enclosed external fan-shaped rotating electrical machine. FIG. 3 is a longitudinal sectional side view of another embodiment of the ventilation device for a totally enclosed external fan-shaped rotating electric machine of the present invention.

1・・・軸、4・・・回転電機、5・・・空気冷却器、
6・・・外扇、7・・・外扇カバー、8a・・・風洞、
9・・・整風板。
1... Axis, 4... Rotating electric machine, 5... Air cooler,
6...Outside fan, 7...Outside fan cover, 8a...Wind tunnel,
9... Air conditioning board.

10・・・軸受、11・・・ボルト。10... Bearing, 11... Bolt.

Claims (1)

【特許請求の範囲】[Claims] 1、回転電機の上部に設置された空気冷却器へ冷却風を
送入する冷却風送入扇が前記回転電機の軸上に設けられ
、かつ外部から前記冷却風を導入する外扇と、この外扇
を囲んで設けられた外扇カバーと、この外扇カバーと前
記空気冷却器との間を連通する風洞とから構成される全
閉外扇形回転電機の通風装置において、前記風洞が、前
記外扇カバーおよび前記空気冷却器と着脱自在に形成さ
れたものであることを特徴とする全閉外扇形回転電機の
通風装置。
1. A cooling air supply fan that sends cooling air to an air cooler installed at the top of the rotating electrical machine is installed on the axis of the rotating electrical machine, and an external fan that introduces the cooling air from outside; In a ventilation system for a completely enclosed external fan-shaped rotating electric machine, which includes an external fan cover provided surrounding an external fan, and a wind tunnel that communicates between the external fan cover and the air cooler, the wind tunnel is configured to 1. A ventilation device for a completely enclosed external fan-shaped rotating electrical machine, characterized in that the fan cover and the air cooler are detachably formed.
JP22237384A 1984-10-23 1984-10-23 Ventilator for rotary electric machine with totally-enclosed-fan Pending JPS61102149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22237384A JPS61102149A (en) 1984-10-23 1984-10-23 Ventilator for rotary electric machine with totally-enclosed-fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22237384A JPS61102149A (en) 1984-10-23 1984-10-23 Ventilator for rotary electric machine with totally-enclosed-fan

Publications (1)

Publication Number Publication Date
JPS61102149A true JPS61102149A (en) 1986-05-20

Family

ID=16781333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22237384A Pending JPS61102149A (en) 1984-10-23 1984-10-23 Ventilator for rotary electric machine with totally-enclosed-fan

Country Status (1)

Country Link
JP (1) JPS61102149A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011177094A (en) * 2010-02-26 2011-09-15 Hitachi Koki Co Ltd Lawn mower
US20110227433A1 (en) * 2010-03-18 2011-09-22 Abb S.P.A. Electrical motor apparatus having improved cooling system
US20120019084A1 (en) * 2010-07-21 2012-01-26 Denso Corporation Cooling system of electric rotating machine for vehicles
JP2017201878A (en) * 2016-05-03 2017-11-09 アルストム トランスポート テクノロジーズ Electric motor including external cooler and multiple cooling circuits
CN107742934A (en) * 2017-12-05 2018-02-27 常州富兴机电有限公司 A kind of outer rotor motor structure with pre-load nut

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011177094A (en) * 2010-02-26 2011-09-15 Hitachi Koki Co Ltd Lawn mower
US20110227433A1 (en) * 2010-03-18 2011-09-22 Abb S.P.A. Electrical motor apparatus having improved cooling system
US8860265B2 (en) * 2010-03-18 2014-10-14 Abb S.P.A. Electrical motor apparatus having improved cooling system
US20120019084A1 (en) * 2010-07-21 2012-01-26 Denso Corporation Cooling system of electric rotating machine for vehicles
US8933599B2 (en) * 2010-07-21 2015-01-13 Denso Corporation Cooling system of electric rotating machine for vehicles
JP2017201878A (en) * 2016-05-03 2017-11-09 アルストム トランスポート テクノロジーズ Electric motor including external cooler and multiple cooling circuits
CN107742934A (en) * 2017-12-05 2018-02-27 常州富兴机电有限公司 A kind of outer rotor motor structure with pre-load nut
CN107742934B (en) * 2017-12-05 2024-05-03 常州富兴机电有限公司 Outer rotor motor structure with pre-tightening nut

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