JPH09280197A - Capacity adjusting device for blower - Google Patents
Capacity adjusting device for blowerInfo
- Publication number
- JPH09280197A JPH09280197A JP11551096A JP11551096A JPH09280197A JP H09280197 A JPH09280197 A JP H09280197A JP 11551096 A JP11551096 A JP 11551096A JP 11551096 A JP11551096 A JP 11551096A JP H09280197 A JPH09280197 A JP H09280197A
- Authority
- JP
- Japan
- Prior art keywords
- blower
- scroll plate
- air flow
- casing
- female screw
- 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.)
- Withdrawn
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、風量可変装置を内
蔵する送風機において、特に風量可変装置自体による性
能の低下を防止する構造にした送風機の風量調整装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air flow rate adjusting device for a blower having a built-in air flow rate changing device, and more particularly to a blower having a structure for preventing performance deterioration due to the air flow rate changing device itself.
【０００２】[0002]
【従来の技術】従来、遠心送風機の風量可変装置とし
て、揺動可能なスクロール板を内蔵した方式が知られて
いる。この方式の一般的な例を図３に示す。該図に示す
実施例において、風量可変装置は、蝶番７によりケーシ
ング１の内周面に揺動可能にスクロール板３の一端を取
り付け、このスクロール板３の他端を、スクロール板３
に固定された雌ねじブロック５を介して、ケーシング１
に回転可能に取り付けた雄ねじ軸（スクリューロッド）
４に螺合すると共に、この雄ねじ軸（スクリューロッ
ド）４を可動させるためのハンドル６をケーシング端に
突出した雄ねじ軸に取り付けて構成され、このスクリュ
ーロッドに固定したハンドルによる回動操作にてスクロ
ール板３を揺動即ち移動させて、送風機の送風吐出口の
断面積を変えて風量を調整するものである。2. Description of the Related Art Conventionally, as a device for varying the air flow rate of a centrifugal blower, a system having a swingable scroll plate is known. A general example of this scheme is shown in FIG. In the embodiment shown in the figure, the air flow rate changing device is such that a hinge 7 attaches one end of a scroll plate 3 to the inner peripheral surface of a casing 1 so that the scroll plate 3 can swing, and the other end of the scroll plate 3 is attached to the scroll plate 3.
Via the female screw block 5 fixed to the casing 1
Male screw shaft (screw rod) rotatably attached to
4 is mounted on a male screw shaft projecting at the end of the casing while being screwed onto the male screw shaft (screw rod) 4 and is scrolled by a rotating operation by a handle fixed to this screw rod. The plate 3 is swung or moved to change the cross-sectional area of the blower outlet of the blower to adjust the air volume.
【０００３】[0003]
【発明が解決しようとする課題】上記の従来の遠心送風
機の風量可変装置は、スクロール板に固定した雌ねじブ
ロック５が送風路内に突出するため、この雌ねじブロッ
ク５の空気抵抗の影響により風量可変装置のない場合に
比較し、送風機の性能が図４に示す如く低下する。この
図４は風量可変装置の有無による送風機吐出口での静圧
の値を比較したもので、明らかに風量可変装置のない場
合の方が優れていることが判る。風量可変装置を取り付
けた場合、雌ねじブロック５が気流側、即ち送風機の送
風路吐出口側に突出するようにして設置されるためこの
雌ねじブロック５が抵抗となり、その分だけ吐出静圧が
減少するものとなっている。この欠点を防止するため、
雌ねじブロック５を反気流側、すなわち図３のＢ位置に
ある雌ねじブロック５に示すように送風路吐出口と反対
側に取り付ける方法も提案されているが、この場合、雄
ねじ軸を回動させて雌ねじブロック５を介してスクロー
ル板３をケーシング側に移動させても雌ねじブロック５
の厚み分だけスクロール板３とケーシング内面との間に
同図のように隙間が生じて送風機の吐出口面積が減じ、
しかもスクロール板３の曲線が、その送風機に最適な気
流となるよう設計されたケーシング１の曲線と異なる曲
線となるため、さらに吐出静圧は減少するものとなる。
これを防ぐにはケーシング１を雌ねじブロック５の厚み
分大きく設計する必要があるという問題点があった。本
発明は、上記従来の送風機の風量調整装置の有する問題
点を解決し、雌ねじブロック５による吐出静圧の減少を
生じることなく、かつケーシング１の形状を風量可変装
置の有無により変える必要がなく、風量可変装置自体に
よる性能の低下を防止することができる送風機の風量調
整装置を提供することを目的とする。In the conventional air volume varying device for the centrifugal blower described above, since the female screw block 5 fixed to the scroll plate projects into the air passage, the air amount is varied by the air resistance of the female screw block 5. Compared to the case without the device, the performance of the blower deteriorates as shown in FIG. This FIG. 4 compares the values of static pressure at the blower outlet with and without the air volume varying device, and it is apparent that the case without the air volume varying device is superior. When the air volume variable device is attached, the female screw block 5 is installed so as to project toward the air flow side, that is, the air outlet side of the blower, so that the female screw block 5 becomes a resistance and the discharge static pressure is reduced accordingly. It has become a thing. To prevent this drawback,
A method has also been proposed in which the female screw block 5 is attached to the side opposite to the air flow, that is, the female screw block 5 at the position B in FIG. Even if the scroll plate 3 is moved to the casing side through the female screw block 5, the female screw block 5
As shown in the figure, a gap is created between the scroll plate 3 and the inner surface of the casing by the thickness of
Moreover, the curved line of the scroll plate 3 is different from the curved line of the casing 1 designed to provide an optimal air flow for the blower, so that the discharge static pressure is further reduced.
In order to prevent this, there is a problem in that the casing 1 needs to be designed larger by the thickness of the female screw block 5. The present invention solves the problems of the conventional air flow rate adjusting device for a blower, does not cause a decrease in discharge static pressure due to the internal thread block 5, and does not need to change the shape of the casing 1 depending on the presence or absence of an air flow rate changing device. An object of the present invention is to provide an air flow rate adjusting device for a blower, which is capable of preventing performance deterioration due to the air flow rate changing device itself.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するた
め、本発明の送風機の風量調整装置は、スクロール板の
移動にて送風機の風量を調整する装置において、スクロ
ール板の可動端側に設け、雄ねじ軸の回動にて移動する
ようにした雌ねじブロックを、送風路となる気流側と反
対側に位置し、スクロール板の全開時に、送風機を取り
付けるフレーム内に納まるようにすることを特徴とす
る。In order to achieve the above object, an air flow rate adjusting device for a blower according to the present invention is a device for adjusting the air flow rate of a blower by moving a scroll plate, and is provided on a movable end side of the scroll plate. A female screw block, which is adapted to move by the rotation of the male screw shaft, is located on the side opposite to the air flow side that serves as a blower passage, and is housed in the frame to which the blower is attached when the scroll plate is fully opened. .
【０００５】上記の構成からなる本発明の送風機の風量
調整装置においては、雌ねじブロックが反気流側取付の
ため、送風路側に突出することがないので、気流の抵抗
となることがないため性能の低下もなく、騒音の発生も
防止できる。又、スクロール板に固定する雌ねじブロッ
クを反気流側に取り付け、ケーシングに固定したフレー
ム内に嵌入するようにしているので、スクロール板は、
送風機のケーシングの送風路内面に隙間無く沿わせられ
るので送風路断面積を大きく設定できる。In the air flow rate adjusting device of the present invention having the above-mentioned structure, since the female screw block is mounted on the side opposite to the air flow, it does not project to the air flow path side, so that it does not become a resistance to the air flow, so that the performance is improved. It is possible to prevent the generation of noise without any decrease. In addition, since the female screw block that is fixed to the scroll plate is attached to the side opposite to the air flow and is fitted into the frame that is fixed to the casing, the scroll plate is
Since it can be placed along the inner surface of the air duct of the blower casing without any gap, the air duct cross-sectional area can be set large.
【０００６】この場合において、スクロール板は、送風
機のケーシングの送風路内面に沿う形状とすることもで
きる。In this case, the scroll plate may have a shape along the inner surface of the blower passage of the casing of the blower.
【０００７】上記の構成からなる本発明の送風機の風量
調整装置は、スクロール板が送風機のケーシングと近似
の曲線となるため、性能の低下がなく、そのためケーシ
ングは風量調整装置のない場合と同一形状でよいため標
準化が図れる。In the air volume adjusting device for a blower according to the present invention having the above-mentioned structure, since the scroll plate has a curve similar to that of the casing of the blower, there is no deterioration in performance. Therefore, the casing has the same shape as that without the air volume adjusting device. Since it is good, standardization can be achieved.
【０００８】[0008]
【発明の実施の形態】以下、本発明の送風機の風量調整
装置の実施の形態を図面に基づいて説明する。本発明
は、雌ねじブロックによる吐出静圧の減少と騒音の増大
を生じることなく、かつケーシング１の形状を風量可変
装置の有無により変える必要のない構造を得ることにあ
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an air volume adjusting device for a blower according to the present invention will be described below with reference to the drawings. An object of the present invention is to obtain a structure in which the static discharge pressure is not reduced and the noise is not increased by the female screw block, and the shape of the casing 1 does not need to be changed depending on the presence or absence of the air volume varying device.
【０００９】図１においては、送風機のケーシングで、
このケーシングはその送風機に最適な気流となるように
設計された曲線形状として吐出静圧の減少を可及的に減
少しないようにしている。そしてケーシング１の吐出口
の外周部には取付フランジ２を取り付け、この取付フラ
ンジ２とフレーム８をていけつする事により、送風機を
固定する。In FIG. 1, in the casing of the blower,
This casing has a curved shape designed to provide an optimal air flow for the blower so that the static discharge pressure is not reduced as much as possible. A mounting flange 2 is attached to the outer peripheral portion of the discharge port of the casing 1, and the mounting flange 2 and the frame 8 are extended to fix the blower.
【００１０】ケーシング１の送風路吐出口側板に沿って
スクロール板３を配設する。このスクロール板３は前記
ケーシング１の送風路吐出口側板に密接するような形状
とし、かつその一端を蝶番７を介してケーシング１に可
動式に取り付けると共に、他端部で送風路吐出口に於い
て反気流側、即ち反送風路側に突出するようにして雌ね
じブロック５を固定し、この雌ねじブロック５を雄ねじ
軸４に螺合する。なお、この蝶番７はスクロール板１の
変形をより容易にするために必要に応じて設ける。A scroll plate 3 is arranged along the air passage outlet side plate of the casing 1. The scroll plate 3 is shaped so as to be in close contact with the air passage outlet side plate of the casing 1, one end of which is movably attached to the casing 1 through a hinge 7, and the other end of which is the air passage outlet. Then, the female screw block 5 is fixed so as to project to the side opposite to the air flow, that is, to the side opposite to the air flow path, and the female screw block 5 is screwed onto the male screw shaft 4. In addition, this hinge 7 is provided as needed in order to make the deformation of the scroll plate 1 easier.
【００１１】雄ねじ軸４はケーシング１に固定したフレ
ーム８に貫通し、かつ回動自在に、抜け止め状にして取
り付け、一端には回動用のハンドル６を取り付け、ハン
ドル６の手動または電動等により回転させて雄ねじ軸４
を回動させてこれに螺合した雌ねじブロック５を移動し
てスクロール板３を図１に示すＡ位置からＢ位置へ、ま
たその反対方向へ揺動させて送風路吐出口の断面積を可
変して吐出風量を調整するもので、スクロール板３が図
１に示すＡ位置にある場合吐出口断面積は小となり、Ｂ
位置にある時は、吐出口断面積は大となる。The male screw shaft 4 penetrates through a frame 8 fixed to the casing 1 and is rotatably attached in a retaining shape. A handle 6 for rotation is attached at one end, and the handle 6 is manually or electrically operated. Rotate male screw shaft 4
Is rotated to move the female screw block 5 threadedly engaged therewith to swing the scroll plate 3 from position A to position B shown in FIG. 1 and in the opposite direction to change the cross-sectional area of the air outlet. In order to adjust the discharge air volume, the discharge port cross-sectional area becomes small when the scroll plate 3 is at the position A shown in FIG.
When in the position, the discharge port cross-sectional area is large.
【００１２】また、雌ねじブロック５はスクロール板３
の反送風路吐出口側に取り付けられるが、送風機に最適
な気流となるように設計されたケーシング１の曲線形状
面にほぼ密接して吐出口断面積が大となるＢ位置にある
場合、雌ねじブロック５は、反気流側に突出してフレー
ム８内に嵌入されるようこのフレーム８をスクロール板
３の取付側のみ内側に凹部８ａが来るようにして取り付
け、他の３辺は外側に凹部８ｂが来るようにして取り付
ける。Further, the female screw block 5 is a scroll plate 3
, Which is attached to the outlet side opposite to the blower passage, is located in the position B where the outlet cross-sectional area is large and is almost in close contact with the curved surface of the casing 1 designed to provide the optimum air flow for the blower. The block 5 is mounted such that the frame 8 projects toward the side opposite to the air flow and is fitted into the frame 8 so that the concave portion 8a comes inside only on the mounting side of the scroll plate 3, and the other three sides have the concave portion 8b outside. Install it as it comes.
【００１３】これにより、風量調整装置を全開、すなわ
ちスクロール板３が位置Ｂになったとき、雌ねじブロッ
ク５は、フレーム８の凹部８ｃ内におさまるため、スク
ロール板３はケーシング１にほぼ近似な曲線とすること
ができ、風量調整装置による送風機の性能低下を防ぐこ
とができる。As a result, when the air volume adjusting device is fully opened, that is, when the scroll plate 3 is at the position B, the female screw block 5 fits within the recess 8c of the frame 8, so that the scroll plate 3 has a curved line that is approximately similar to the casing 1. Therefore, it is possible to prevent the performance of the blower from being deteriorated by the air volume adjusting device.
【００１４】なお、このフレーム８はケーシング１と一
体としてもよい。さらに、図１（Ｂ）に示すとおり、フ
レーム８は４辺共すべて外側に凹部８ａがくるようにし
て取り付け、雌ねじブロック５の寸法より大きい孔１７
をこのフレームの一部に開孔し、この孔１７内に雌ねじ
ブロック５を嵌入するようにしてもよい。図１（Ｃ）
は、ケージング１に凹部８を設けた事例を示す。The frame 8 may be integrated with the casing 1. Further, as shown in FIG. 1 (B), the frame 8 is attached so that all the four sides have the recesses 8a on the outside, and the holes 17 larger than the size of the female screw block 5 are formed.
Alternatively, a hole may be formed in a part of the frame, and the female screw block 5 may be fitted into the hole 17. FIG. 1 (C)
Shows a case where the recess 8 is provided in the caging 1.
【００１５】図２に示す実施例は、本発明のケーシング
１を送風機ボックス１１内に納めたもので、この送風機
ボックス１１は鋼板、形鋼等で製作され、さらにこの送
風機ボックス１１には空気取入口１３と吐出口１０を形
成し、かつ該ボックス１１内には送風機１６を駆動する
ための電動機１２を設置し、Ｖベルト等により送風機１
６を駆動し、そして空気取入口１３には吸入ダクト１４
を、吐出口１０には吐出ダクト１５を取り付けて送風を
行うものである。さらに前記風量可変用のハンドル６
は、送風機ボックス１１の内部に設けてもよい。In the embodiment shown in FIG. 2, the casing 1 of the present invention is housed in a blower box 11, and the blower box 11 is made of steel plate, shaped steel or the like. An inlet 12 and an outlet 10 are formed, and an electric motor 12 for driving a blower 16 is installed in the box 11, and the blower 1 is provided by a V belt or the like.
6 and has an intake duct 14 at the air intake 13.
The discharge duct 15 is attached to the discharge port 10 to blow air. Further, the handle 6 for changing the air volume
May be provided inside the blower box 11.
【００１６】[0016]
【発明の効果】本発明の送風機の風量調整装置によれ
ば、スクロール板に固定する雌ねじブロックを反気流側
に取り付け、ケーシングに固定したフレーム内に嵌入可
能としているので、スクロール板が全開時においても、
雌ねじブロックが反気流側取付のため、送風路側に突出
することがないので、気流の抵抗となることがなく騒音
の発生も防止できる利点がある。スクロール板が送風機
のケーシングと近似の曲線となるため、性能の低下がな
く、そのためケーシングは風量調整装置のない場合と同
一形状でよいため標準化が図れる。According to the air volume adjusting device of the blower of the present invention, the female screw block fixed to the scroll plate is attached to the side opposite to the air flow and can be fitted into the frame fixed to the casing. Therefore, when the scroll plate is fully opened. Also,
Since the female screw block is mounted on the side opposite to the air flow, it does not project to the air flow path side, so there is an advantage that it does not become a resistance to the air flow and noise can be prevented. Since the scroll plate has a curve similar to that of the blower casing, there is no deterioration in performance. Therefore, the casing can have the same shape as the case without the air volume adjusting device, and thus standardization can be achieved.
【図１】本発明の送風機の風量調整装置の第１実施例を
示す断面図である。FIG. 1 is a cross-sectional view showing a first embodiment of an air volume adjusting device for a blower according to the present invention.
【図２】本発明の送風機の風量調整装置を送風機ボック
ス内に取り付けた実施例の説明図である。FIG. 2 is an explanatory view of an embodiment in which the air flow rate adjusting device for a blower according to the present invention is installed in a blower box.
【図３】従来の送風機の風量調整装置を示す断面図であ
る。FIG. 3 is a cross-sectional view showing a conventional air volume adjusting device for a blower.
【図４】風量可変装置の有無による送風機吐出口での静
圧の値を比較したグラフである。FIG. 4 is a graph comparing static pressure values at a blower outlet with and without a variable air volume device.
１ ケーシング ３ スクロール板 ４ 雄ねじ軸 ５ 雌ねじブロック ６ ハンドル ７ 蝶番 ８ フレーム 1 Casing 3 Scroll plate 4 Male screw shaft 5 Female screw block 6 Handle 7 Hinge 8 Frame
Claims (2)
調整する送風機の風量調整装置において、スクロール板
の可動端側に設け、雄ねじ軸の回動にて移動するように
した雌ねじブロックを、送風路となる気流側と反対側に
位置し、スクロール板の全開時に、送風機を取り付ける
フレーム内に納まるようにすることを特徴とする送風機
の風量調整装置。1. A blower air flow rate adjusting device for adjusting the air flow rate of a blower by moving a scroll plate, wherein a female screw block provided on the movable end side of the scroll plate and moved by the rotation of a male screw shaft is blown. An air flow rate adjusting device for a blower, which is located on the side opposite to the air flow side that serves as a passage, and is adapted to be housed in a frame to which the blower is attached when the scroll plate is fully opened.
送風路内面に沿う形状とすることを特徴とする請求項１
記載の送風機の風量調整装置。2. The scroll plate has a shape along the inner surface of the blower passage of the casing of the blower.
Air flow rate adjusting device for the blower described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11551096A JPH09280197A (en) | 1996-04-12 | 1996-04-12 | Capacity adjusting device for blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11551096A JPH09280197A (en) | 1996-04-12 | 1996-04-12 | Capacity adjusting device for blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09280197A true JPH09280197A (en) | 1997-10-28 |
Family
ID=14664314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11551096A Withdrawn JPH09280197A (en) | 1996-04-12 | 1996-04-12 | Capacity adjusting device for blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09280197A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030054650A (en) * | 2001-12-26 | 2003-07-02 | 주식회사 엘.지.에이 | Airflow regulation device of centrifugal fan |
| JP2005164062A (en) * | 2003-11-28 | 2005-06-23 | Sharp Corp | Air conditioner |
| JP2007139414A (en) * | 2007-01-16 | 2007-06-07 | Shinko Kogyo Co Ltd | Fan chamber frame structure for air conditioner |
| WO2016114419A1 (en) * | 2015-01-13 | 2016-07-21 | 주식회사 부강테크 | Turbo blower equipped with flow path adjustment device |
| KR102280634B1 (en) * | 2020-04-21 | 2021-07-22 | 주식회사 힘펠 | Discharge Structure of Centrifugal fan |
-
1996
- 1996-04-12 JP JP11551096A patent/JPH09280197A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030054650A (en) * | 2001-12-26 | 2003-07-02 | 주식회사 엘.지.에이 | Airflow regulation device of centrifugal fan |
| JP2005164062A (en) * | 2003-11-28 | 2005-06-23 | Sharp Corp | Air conditioner |
| JP2007139414A (en) * | 2007-01-16 | 2007-06-07 | Shinko Kogyo Co Ltd | Fan chamber frame structure for air conditioner |
| WO2016114419A1 (en) * | 2015-01-13 | 2016-07-21 | 주식회사 부강테크 | Turbo blower equipped with flow path adjustment device |
| KR102280634B1 (en) * | 2020-04-21 | 2021-07-22 | 주식회사 힘펠 | Discharge Structure of Centrifugal fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5109965A (en) | Temperature sensitive hydraulic fan coupling | |
| JPH09280197A (en) | Capacity adjusting device for blower | |
| US4253796A (en) | Fan or blower assembly | |
| US20030070654A1 (en) | Throttle apparatus | |
| JP2003262353A (en) | Indoor unit of air conditioner and method of controlling operation of air conditioner | |
| JPS61135998A (en) | Multistage centrifugal compressor | |
| JP2641629B2 (en) | Duct ventilation fan | |
| CN210153948U (en) | Air duct machine | |
| JPH0681782A (en) | Capacity controller for inverter-driven screen compressor | |
| US4411453A (en) | Fan or blower assembly | |
| JP3639339B2 (en) | Soundproof room ventilation system | |
| KR100267577B1 (en) | Air volume adjusting fan | |
| JPH02178542A (en) | Air flow direction changing device for outdoor equipment air conditioner | |
| KR100548754B1 (en) | Scroll case for blower unit | |
| JP2633328B2 (en) | Wind direction changing device | |
| KR100286303B1 (en) | Stabilizer of airconditioner indoor unit | |
| JPH0769035A (en) | Air blowing unit for vehicle | |
| KR100680372B1 (en) | Variable intake device | |
| JPH09310700A (en) | Scroll casing for centrifugal blower | |
| KR100339273B1 (en) | Blower unit for air conditioner of vehicle | |
| KR100262719B1 (en) | The structure of indoor unit for air-conditioner | |
| KR0146511B1 (en) | Nozzle of ventilator | |
| JPH0721903Y2 (en) | Once-through turbine | |
| KR20020046788A (en) | Structure of air conditioner louver for bus | |
| JPH09133099A (en) | Axial blower device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030701 |