JPS6235100A - Blower device - Google Patents
Blower deviceInfo
- Publication number
- JPS6235100A JPS6235100A JP17362885A JP17362885A JPS6235100A JP S6235100 A JPS6235100 A JP S6235100A JP 17362885 A JP17362885 A JP 17362885A JP 17362885 A JP17362885 A JP 17362885A JP S6235100 A JPS6235100 A JP S6235100A
- Authority
- JP
- Japan
- Prior art keywords
- hub
- impeller
- motor
- flow
- outside
- 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
【発明の詳細な説明】
産業上の利用分野
本発明は、空調機等に用いられる送風装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a blower device used in an air conditioner or the like.
従来の技術 従来のこの種の送風装置は第3図に示すように。Conventional technology A conventional blower device of this type is shown in FIG.
羽根車11とモータ2およびケーシング3とから構成さ
れており、この羽根車を回転させることによって矢印a
で示したようなほぼ軸対称な径方向の吹き出し流れを生
じていた。。羽根車から吐出された流れはケーシングに
より吐出口へ導かれるが、その際にモータの周囲を通過
する流れによりモータの冷却を行なっていた。It is composed of an impeller 11, a motor 2, and a casing 3, and by rotating this impeller, the arrow a
A nearly axially symmetrical radial blowout flow was generated as shown in . . The flow discharged from the impeller is guided to the discharge port by the casing, and at that time, the motor is cooled by the flow passing around the motor.
発明が解決しようとする問題点
しかしながら上記の構成ではモータの冷却を十分に行な
うためには、羽根車とモータを離して取付け、羽根車か
ら出た流れがモータの周囲を流れ易いようにする必要が
あり、仮に、羽根車ハブの内側ヘモータを収納するよう
な構成をとると、ハブの内側へは十分な空気が流れ込ま
ずモータの過熱を引き起こす。Problems to be Solved by the Invention However, in order to sufficiently cool the motor with the above configuration, it is necessary to mount the impeller and motor apart from each other so that the flow from the impeller can easily flow around the motor. If the motor is housed inside the impeller hub, insufficient air will flow into the hub, causing the motor to overheat.
このように、従来の構成では羽根車とモータを離して取
付ける必要があり、モータの回転軸方向の取付は寸法を
ある程度以上小さく出来ないという欠点を有していた。As described above, in the conventional configuration, it is necessary to mount the impeller and the motor apart from each other, and mounting the motor in the direction of the rotating shaft has the disadvantage that the dimensions cannot be reduced beyond a certain level.
本発明はかかる従来の問題を解消するもので、羽根車ハ
ブの内側にモータを収納する構成をとってもモータの十
分な冷却を行なえる構造とし、送風装置の薄形化を目的
とするものである。The present invention solves such conventional problems, and aims to reduce the thickness of the air blower by providing a structure in which the motor is housed inside the impeller hub so that the motor can be sufficiently cooled. .
問題点を解決するための手段
上記問題点を解決するために、本発明の送風装置は内部
が空洞のほぼ錐台形で、上底にボヌ部を設け下底を開放
としたハブの側面に複数枚の羽根を備え、前記ハブの下
端に複数枚の小翼を円筒状に並べて形成すると共にmJ
記ハブ上底に吸気口を設けた羽根車の内側に駆動用モー
タを収納するように構成されている。Means for Solving the Problems In order to solve the above-mentioned problems, the air blower of the present invention has a hollow interior, almost a frustum shape, and has a plurality of holes on the sides of the hub, which has a hollow part at the top and an open bottom. A plurality of small blades are arranged in a cylindrical shape at the lower end of the hub, and mJ
The drive motor is housed inside an impeller having an intake port provided at the upper bottom of the hub.
作 用
本発明は上記のように、羽根車ハブの上底に吸気口が設
けられているだめに、ここからハブの内部へ空気の流入
が生じる。さらに、ハブ下端の多数の小翼が円筒状に形
成されている部分は遠心羽根車と同じように働くために
、ハブ内部から外部へ向かう半径方向の流れを生じる。Function As described above, in the present invention, since the air intake port is provided at the upper bottom of the impeller hub, air flows into the hub from the air intake port. Furthermore, the cylindrical portion of the lower end of the hub, in which many small blades are formed, acts in the same way as a centrifugal impeller, thus producing a radial flow from the inside of the hub to the outside.
したがって、この外向き流れに応じた流量が、ハブ上底
の吸気口から流入するために、羽根車ハブ内を通過する
流れは、下端に小翼のない場合に比べると大幅に増加す
る。このため、羽根車ハブ内のモータを冷却するのに十
分な空気がハブの内部を通過することてなり、モータの
過熱を防ぐことが可能になる。Therefore, since the flow rate corresponding to this outward flow flows in from the intake port at the upper bottom of the hub, the flow passing through the impeller hub increases significantly compared to the case where there are no small blades at the lower end. Therefore, sufficient air to cool the motor in the impeller hub passes through the hub, making it possible to prevent the motor from overheating.
また、ハブ下端の小翼によってハブ内部から半径方向に
流出した流れは、ハブの外側を流れる斜流羽根車本来の
流れと合流するため、モータの冷却だけでなく全体の流
量増加にもつながる。In addition, the flow that flows out in the radial direction from inside the hub by the small blades at the lower end of the hub merges with the original flow of the mixed flow impeller flowing outside the hub, which not only cools the motor but also increases the overall flow rate.
また、ハブの下端に遠心羽根車として働く羽根部分を設
けたために、この部分の高さだけ羽根車の軸方向の高さ
が増すが、ハブの内部を通りモータを冷却する流れはハ
ブ下端を迂回するのではなく、この羽根部分を通過して
流出するのでハブ下底端とケーシング底板の間に隙き間
を設ける必要がなくなり、全体としては送風機の薄形化
を図ることができる。In addition, since the blade part that functions as a centrifugal impeller is provided at the lower end of the hub, the axial height of the impeller increases by the height of this part, but the flow that passes through the inside of the hub and cools the motor does not pass through the lower end of the hub. Since the air flows out through this blade portion instead of taking a detour, there is no need to provide a gap between the lower bottom end of the hub and the casing bottom plate, and the blower can be made thinner as a whole.
実施例 以下本発明の実施例を添付図面にもとづいて説明する。Example Embodiments of the present invention will be described below based on the accompanying drawings.
第1図において、1は羽根車、2は羽根車の駆動用モー
タ、3はケーシングである。また、第2図に示したよう
に、羽根車ハブ1aの下端は円筒状に多数の小翼1bが
形成されていると共に、ハブの上底には吸気口1cが設
けられている。In FIG. 1, 1 is an impeller, 2 is a driving motor for the impeller, and 3 is a casing. Further, as shown in FIG. 2, a large number of small cylindrical blades 1b are formed at the lower end of the impeller hub 1a, and an intake port 1c is provided at the upper bottom of the hub.
モータ2によって羽根車1を回転きせると、ハブ側面に
形成された羽根1dによって、矢印すで示しだハブ表面
に沿う流れを生じる。また、それと同時に、ハブ下端に
設けられた円筒状の小翼列は遠心羽根車として作月する
ために、矢印Cで示したような、羽根車ハブの内側から
外側へ向かう流れを生じる。ハブ内部を通過する流れは
ハブ上底に設けら□れた吸気口から流入し、モータの冷
却を行なったのち、ハブの外側へ吐出される。このとき
、吐出流れはハブ下底端とケーシング底板3aの隙き間
より流出するのではなく、ハブ下端に設けられた小翼列
の領域を通過して吐出されるために、ハブ下底端とケー
シング底板の間に隙き間を設ける必要はない。したがっ
て、羽根車の内部へ □モータを完全に収納する構成を
とってもモータの冷却空気が十分にハブ内部を流れるた
め、モータを羽根車ハブ内て収めた薄形化を実現するこ
とができる。When the impeller 1 is rotated by the motor 2, the blades 1d formed on the side surface of the hub generate a flow along the hub surface as indicated by the arrow. At the same time, since the cylindrical small blade row provided at the lower end of the hub is constructed as a centrifugal impeller, a flow from the inside to the outside of the impeller hub, as shown by arrow C, is generated. The flow that passes through the hub enters from an intake port provided at the top of the hub, cools the motor, and then is discharged to the outside of the hub. At this time, the discharge flow does not flow out from the gap between the lower bottom end of the hub and the casing bottom plate 3a, but is discharged through the area of the small blade row provided at the lower end of the hub. There is no need to provide a gap between the casing and the casing bottom plate. Therefore, even in a configuration in which the motor is completely housed inside the impeller, the motor cooling air flows sufficiently inside the hub, making it possible to achieve a thin design in which the motor is housed within the impeller hub.
発明の効果
以上のように本発明の送風袋ffl?によれば、羽根車
ハブの下端に設けられた小翼列が遠心羽根車として働き
、ハブ内側から外側への流れを生じるために、ハブ上底
に開けられた吸気口から自然流入するよりもより多くの
空気がハブ内部に流入しモータの冷却を促進する。また
、ハブ下底端とケーシング底板との間に隙き間を設けな
くとも、ハブ内側から外側への流れが確保できるために
、モータを完全にハブ内部に収納した薄形の送風機構成
を実現することができる。The blowing bag of the present invention has more than the effects of the invention. According to the authors, the small blade row installed at the lower end of the impeller hub acts as a centrifugal impeller and generates a flow from the inside of the hub to the outside, rather than flowing naturally through the intake port opened at the top of the hub. More air flows into the hub to help cool the motor. In addition, since the flow can be ensured from the inside of the hub to the outside without creating a gap between the bottom end of the hub and the bottom plate of the casing, a thin blower configuration with the motor completely housed inside the hub has been achieved. can do.
さらに、羽根車ハブ内部を通過した流れは、ハブの外側
の流れと合流して送風機の吐出口へ流出するために、送
風機全体として風霜も増加するという効果が得られる・Furthermore, the flow that has passed inside the impeller hub merges with the flow outside the hub and flows out to the outlet of the blower, which has the effect of increasing wind frost for the blower as a whole.
第1図は本発明の一実施例における送風装置の断面図、
第2図は同羽根車の斜視図、第3図は従来のこの種の送
風装置の断面図である。
1・・・・・・羽根車、1a・・・・・・ハブ、1b・
・・・・・小翼、1c・・・・・・吸気口、1d・・・
・・・羽根、2・・・・・・モータ。
代理人の氏名 弁理士 中 尾 敏 男 ほか1名1−
羽根車
1α−パ ブ
1b −−−ノド 1−【
Ic −−−I!気ロ
ー(L−羽叔
2− モータ
第1図
Ic
第2図FIG. 1 is a sectional view of a blower device in an embodiment of the present invention;
FIG. 2 is a perspective view of the same impeller, and FIG. 3 is a sectional view of a conventional blower of this type. 1... Impeller, 1a... Hub, 1b.
...Small wing, 1c...Intake port, 1d...
...Blade, 2...Motor. Name of agent: Patent attorney Toshio Nakao and 1 other person1-
Impeller 1α-Pub 1b---Nod 1-[Ic---I! Air (L-Hashu 2- Motor Figure 1 Ic Figure 2
Claims (1)
開放としたハブの側面に複数枚の羽根を備え、前記ハブ
の下端に複数枚の小翼を円筒状に並べて形成すると共に
、前記ハブの上底に吸気口を設けた羽根車の内側にモー
タを設けた送風装置。The hub has a hollow interior, almost a frustum shape, has a boss at the top and an open bottom, and has a plurality of blades on the sides of the hub, and a plurality of small blades arranged in a cylindrical shape at the bottom end of the hub. Also, a blower device including a motor provided inside an impeller having an intake port provided at the upper bottom of the hub.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17362885A JPS6235100A (en) | 1985-08-07 | 1985-08-07 | Blower device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17362885A JPS6235100A (en) | 1985-08-07 | 1985-08-07 | Blower device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6235100A true JPS6235100A (en) | 1987-02-16 |
Family
ID=15964134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17362885A Pending JPS6235100A (en) | 1985-08-07 | 1985-08-07 | Blower device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6235100A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999036701A1 (en) * | 1998-01-14 | 1999-07-22 | Ebara Corporation | Centrifugal turbomachinery |
US6338610B1 (en) | 1998-01-14 | 2002-01-15 | Ebara Corporation | Centrifugal turbomachinery |
JP2006262691A (en) * | 2005-03-14 | 2006-09-28 | Kaeser Kompressoren Gmbh | Compressor device having air-cooled motor |
JP2007177722A (en) * | 2005-12-28 | 2007-07-12 | Hitachi Ltd | Cooling fan device |
JP2009030488A (en) * | 2007-07-25 | 2009-02-12 | Hitachi Industrial Equipment Systems Co Ltd | Blower device |
JP2015183941A (en) * | 2014-03-25 | 2015-10-22 | 株式会社富士通ゼネラル | Ceiling-embedded air conditioner |
-
1985
- 1985-08-07 JP JP17362885A patent/JPS6235100A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999036701A1 (en) * | 1998-01-14 | 1999-07-22 | Ebara Corporation | Centrifugal turbomachinery |
US6338610B1 (en) | 1998-01-14 | 2002-01-15 | Ebara Corporation | Centrifugal turbomachinery |
JP2006262691A (en) * | 2005-03-14 | 2006-09-28 | Kaeser Kompressoren Gmbh | Compressor device having air-cooled motor |
JP2007177722A (en) * | 2005-12-28 | 2007-07-12 | Hitachi Ltd | Cooling fan device |
JP2009030488A (en) * | 2007-07-25 | 2009-02-12 | Hitachi Industrial Equipment Systems Co Ltd | Blower device |
JP2015183941A (en) * | 2014-03-25 | 2015-10-22 | 株式会社富士通ゼネラル | Ceiling-embedded air conditioner |
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