JPH05312195A - Axial flow blower - Google Patents
Axial flow blowerInfo
- Publication number
- JPH05312195A JPH05312195A JP11336692A JP11336692A JPH05312195A JP H05312195 A JPH05312195 A JP H05312195A JP 11336692 A JP11336692 A JP 11336692A JP 11336692 A JP11336692 A JP 11336692A JP H05312195 A JPH05312195 A JP H05312195A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- impeller
- axial flow
- motor cover
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、火災発生時の排煙ファ
ンなどの高温空気を取り扱う軸流送風機におけるモータ
の冷却機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling mechanism for a motor in an axial blower that handles high temperature air such as a smoke exhaust fan when a fire occurs.
【０００２】[0002]
【従来の技術】従来の装置はいずれも羽根車の吸込側に
モータ冷却風取り入れ口が設けられ、羽根車の吐出側に
静翼を設置していた（実開昭54−46010 号）。2. Description of the Related Art In all of the conventional devices, a motor cooling air intake is provided on the suction side of the impeller, and stationary vanes are installed on the discharge side of the impeller (Actual No. 54-46010).
【０００３】[0003]
【発明が解決しようとする課題】上記従来技術は羽根車
の吐出側に静翼（ガイドベーン）が設けられているた
め、吐出空気は整流されたものが得られるが、静翼を別
部品のケーシングで設置するため全長寸法が大きくな
り、コストアップにつながる問題があり、また、モータ
カバー内を流れるモータ冷却風が羽根車の回転によって
生じる圧力差だけのためモータを冷却するための風の速
度が低く、冷却効果が悪い。In the above prior art, since the stationary vanes (guide vanes) are provided on the discharge side of the impeller, the discharged air can be rectified, but the stationary vane is a separate component. Since it is installed in a casing, the total length becomes large, which causes a problem of cost increase.In addition, the speed of the air for cooling the motor is limited because the motor cooling air flowing inside the motor cover is only the pressure difference caused by the rotation of the impeller. Is low and the cooling effect is poor.
【０００４】本発明の目的は、全長寸法を短かく製作出
来、コストダウンされてなお高温空気を取扱い時、モー
タ冷却効果を高め、モータの長寿命化を図れる高温用軸
流送風機を提供することにある。It is an object of the present invention to provide an axial blower for high temperature, which can be manufactured with a short overall length, can reduce the cost, enhance the cooling effect of the motor when handling high temperature air, and extend the life of the motor. It is in.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明はモータ冷却用の外気導入パイプを複数本設
け、ターボ形羽根車を後部のモータ軸に設け、また前部
のモータ軸には軸流形羽根車を設け、その羽根車のハブ
に複数個の穴を設けて羽根車の吸込，吐出部を連絡させ
たものである。In order to achieve the above object, the present invention provides a plurality of outside air introduction pipes for cooling a motor, a turbo type impeller is provided on a rear motor shaft, and a front motor shaft is provided. An axial flow type impeller is provided in the hub, and a plurality of holes are provided in the hub of the impeller to connect the suction and discharge parts of the impeller.
【０００６】[0006]
【作用】羽根車のハブに複数個設けた穴により羽根車の
吸込側と吐出側が連絡され、羽根車の回転によって生じ
た圧力差によりその穴を通して吸込側より吐出側に空気
の流れが生じる。一方、外気導入パイプは羽根車の吸込
側に設置されており、モータ後部の軸に取り付けられて
いるターボ形羽根車の回転により生じる圧力差により、
外気導入パイプを通してモータカバー内に外気が導入さ
れ、モータ周辺を通過して軸流形羽根車の吸込側、及び
羽根車ハブの複数個の穴へと外気は流れていく。これに
よりモータへの外気冷却が可能となり、モータ冷却効率
が一層高められる。The suction side and the discharge side of the impeller are communicated with each other by a plurality of holes provided in the hub of the impeller, and the pressure difference generated by the rotation of the impeller causes an air flow from the suction side to the discharge side through the holes. On the other hand, the outside air introduction pipe is installed on the suction side of the impeller, and due to the pressure difference caused by the rotation of the turbo impeller attached to the shaft at the rear of the motor,
The outside air is introduced into the motor cover through the outside air introduction pipe, passes through the periphery of the motor, and flows to the suction side of the axial flow type impeller and the plurality of holes of the impeller hub. As a result, the outside air to the motor can be cooled, and the motor cooling efficiency is further enhanced.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図１により説明す
る。軸流送風機の円筒形ケーシング１には複数枚の静翼
２（前置ガイドベーン）が固定されており、静翼２には
円筒形のモータカバー３がケーシング１と同心に取り付
けられている。モータカバー３内にはモータ４及びその
後部軸にはターボ形羽根車５と前部軸には外周に複数枚
の羽根を配設し、ハブには複数個の穴７を設けた軸流形
羽根車６が直結されている。軸流形羽根車６が回転する
とダクト９内の空気は２重線の矢印の様に静翼２を通り
軸流形羽根車６へと図示の左方から右方へとダクト１０
へ流れる。この時、モータカバー内は負圧となるためダ
クト１０側の空間との間に圧力差が生じ、軸流形羽根車
６のハブに複数個設けた穴７を通してモータカバー内空
気を一重線の矢印で示すように羽根車吐出側へと導く。
また、モータカバー３はケーシング１との間に設けた複
数本の外気導入パイプ８を介して外気とつながっている
ため外気はモータカバー３内に流入し、モータ後部のタ
ーボ形羽根車５によってその外気は速度を与えられたモ
ータ周辺を通過し、軸流形羽根車ハブの穴７へと導かれ
る。その際外気は、モータ４から発熱する熱量を大量に
奪うことが可能であり、モータの冷却効率がターボ形羽
根車５により一層高められる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. A plurality of stationary blades 2 (front guide vanes) are fixed to a cylindrical casing 1 of the axial blower, and a cylindrical motor cover 3 is attached to the stationary blade 2 concentrically with the casing 1. An axial flow type in which a motor 4 is provided in a motor cover 3, a turbo-type impeller 5 is provided at a rear shaft thereof, a plurality of blades are provided at an outer periphery of a front shaft, and a plurality of holes 7 are provided at a hub. The impeller 6 is directly connected. When the axial flow impeller 6 rotates, the air in the duct 9 passes through the stationary blades 2 as shown by the double-lined arrows to the axial flow impeller 6 from the left side to the right side of the duct 10 in the figure.
Flows to. At this time, since a negative pressure is generated in the motor cover, a pressure difference is generated between the inside of the motor cover and the space on the duct 10 side. Guide it to the discharge side of the impeller as indicated by the arrow.
Further, since the motor cover 3 is connected to the outside air through a plurality of outside air introduction pipes 8 provided between the motor cover 3 and the casing 1, the outside air flows into the motor cover 3, and the turbo impeller 5 at the rear of the motor causes The outside air passes around the motor at a given speed and is guided to the hole 7 of the axial flow type impeller hub. At this time, the outside air can remove a large amount of heat generated from the motor 4, and the cooling efficiency of the motor is further enhanced by the turbo impeller 5.
【０００８】[0008]
【発明の効果】本発明によれば外気導入によるモータ冷
却が可能となりまたモータ冷却効率も高められるため通
風方向が静翼（前置ガイドベーン）から動翼（軸流形羽
根車）へ送風する高温空気（火災時の排煙用高温空気な
ど）を取り扱う軸流送風機において安価な標準モータが
使用可能で、また全長寸法を短かくした低廉形な構造と
することが出来、軸流送風機のコストダウンとなる。According to the present invention, the motor can be cooled by introducing the outside air and the motor cooling efficiency can be improved. Therefore, the ventilation direction is from the stationary blade (front guide vane) to the moving blade (axial flow impeller). A low-priced standard motor can be used in an axial blower that handles high-temperature air (high-temperature air for smoke exhaust during a fire, etc.), and a low-cost structure with a shortened overall length can be used. It will be down.
【図１】本発明の一実施例の軸流送風機の断面図。FIG. 1 is a sectional view of an axial blower according to an embodiment of the present invention.
１…ケーシング、２…静翼、３…モータカバー、４…モ
ータ、５…ターボ形羽根車、６…軸流形羽根車、７…ハ
ブの穴、８…外気導入パイプ、９…吸込側ダクト、１０
…吐出側ダクト。DESCRIPTION OF SYMBOLS 1 ... Casing, 2 ... Stator vanes, 3 ... Motor cover, 4 ... Motor, 5 ... Turbo impeller, 6 ... Axial flow impeller, 7 ... Hub hole, 8 ... Outside air introduction pipe, 9 ... Suction side duct 10,
... Discharge side duct.
Claims (1)
ーを取り付け、その内部にモータを設置し、前記モータ
に直結された軸流形羽根車と片軸にターボ形羽根車を有
する軸流送風機において、前記軸流形羽根車に複数の穴
を設け、前記モータカバーと前記ケーシングを複数のパ
イプで接続し、外気から前記パイプ、前記モートルの後
部の軸に直結されたターボ形羽根車を介して、前記モー
タカバー、前記軸流形羽根車の複数の穴へと至る流れを
形成したことを特徴とする軸流送風機。1. An axial blower having a motor cover attached to a stationary blade fixed in a casing, a motor installed inside the vane, and an axial flow impeller directly connected to the motor and a turbo impeller on one axis. In the above, the axial flow type impeller is provided with a plurality of holes, the motor cover and the casing are connected by a plurality of pipes, and the pipes are connected from the outside air to the turbo type impeller directly connected to the shaft of the rear part of the motor. And a flow extending to a plurality of holes of the motor cover and the axial flow type impeller is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11336692A JPH05312195A (en) | 1992-05-06 | 1992-05-06 | Axial flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11336692A JPH05312195A (en) | 1992-05-06 | 1992-05-06 | Axial flow blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05312195A true JPH05312195A (en) | 1993-11-22 |
Family
ID=14610463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11336692A Pending JPH05312195A (en) | 1992-05-06 | 1992-05-06 | Axial flow blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05312195A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040009836A (en) * | 2002-07-26 | 2004-01-31 | 위니아만도 주식회사 | Motor fan |
| JP2008542680A (en) * | 2005-06-04 | 2008-11-27 | フーベル クンストシュトフ ウント テヒニク ゲーエムベーハー | Hollow ventilator |
| WO2018012897A1 (en) * | 2016-07-13 | 2018-01-18 | 이강선 | Blower |
| CN108757511A (en) * | 2018-07-17 | 2018-11-06 | 广州市泰昌实业有限公司 | A kind of high-temperature axial-flow smoke exhaust fan and high-rise smoke evacuation system |
-
1992
- 1992-05-06 JP JP11336692A patent/JPH05312195A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040009836A (en) * | 2002-07-26 | 2004-01-31 | 위니아만도 주식회사 | Motor fan |
| JP2008542680A (en) * | 2005-06-04 | 2008-11-27 | フーベル クンストシュトフ ウント テヒニク ゲーエムベーハー | Hollow ventilator |
| WO2018012897A1 (en) * | 2016-07-13 | 2018-01-18 | 이강선 | Blower |
| CN108757511A (en) * | 2018-07-17 | 2018-11-06 | 广州市泰昌实业有限公司 | A kind of high-temperature axial-flow smoke exhaust fan and high-rise smoke evacuation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1709332B1 (en) | Centrifugal blower | |
| US8251676B2 (en) | Axial-flow fan for a vehicle radiator | |
| US6231311B1 (en) | Method and apparatus for providing dilution air to a blower motor | |
| WO2016119473A1 (en) | Air conditioning indoor unit cooling exchange system | |
| JP2007518933A5 (en) | ||
| WO2018203366A1 (en) | Electric blower, electric vacuum cleaner, and hand drier | |
| JP3485782B2 (en) | Suction / blowing machine | |
| CS199516B2 (en) | Equipment for forced air intake,especially for cooler ventilation | |
| US6881035B1 (en) | Draft inducer having single piece metal impeller and improved housing | |
| JPH05312195A (en) | Axial flow blower | |
| US2923461A (en) | Impulse axial-flow compressor | |
| JP2003074496A (en) | Fan motor device | |
| EP0992692B1 (en) | Fan including a duct for cooling the motor | |
| JPH033632A (en) | Axial flow blower | |
| JP3668413B2 (en) | Axial flow fan with multi guide vane | |
| GB2126652A (en) | Peripheral toroidal blowers | |
| JP2021146981A5 (en) | ||
| RU2329171C1 (en) | Power plant cooling device (versions) | |
| CN212838449U (en) | Fan ventilation unit that heat dispersion is good | |
| JPH0658115B2 (en) | Engine cooling turbine | |
| CN210074999U (en) | Efficient cooling system for pump | |
| CN219388243U (en) | Heat-resistant fan | |
| JPH05133399A (en) | Axial blower | |
| CN212838038U (en) | Super-silent diesel generating set's subregion heat dissipation structure of making an uproar of falling | |
| JPS584060Y2 (en) | Structure of internal combustion engine radiator |