JPS62288395A - Centrifugal type fan - Google Patents
Centrifugal type fanInfo
- Publication number
- JPS62288395A JPS62288395A JP13228886A JP13228886A JPS62288395A JP S62288395 A JPS62288395 A JP S62288395A JP 13228886 A JP13228886 A JP 13228886A JP 13228886 A JP13228886 A JP 13228886A JP S62288395 A JPS62288395 A JP S62288395A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- plate
- impeller
- partition plate
- cavity
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims abstract description 19
- 238000005422 blasting Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
産業上の利用分野
本発明は、空調機器等に使用される遠心型送風機に関す
るものである。Detailed Description of the Invention 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a centrifugal blower used in air conditioning equipment and the like.
従来の技術
従来、遠心型送風機Ｂは第４図および第５図に示すよう
に、主板２と吸入口３を有する副板４との間に多数の翼
５を立設した羽根車１と、羽根車１の外周囲に設けた渦
巻状の側壁７、羽根車１の吸入口３に対向する部分に給
気口８を有する前板９および主板２に対向する部分に配
置した後板１０とから成るケーシング６とで構成してい
た。なお、第５図は第４図ｂ−ｂｉｔ面を示すとともに
、両図において１１はケーシング６の吐出口を、また１
２は羽根車１を駆動する電動機回転子であり、１３は電
動機の固定子、実線矢印は空気の流れを示す。BACKGROUND OF THE INVENTION Conventionally, as shown in FIGS. 4 and 5, a centrifugal blower B includes an impeller 1 having a large number of blades 5 erected between a main plate 2 and a sub-plate 4 having an inlet 3; A spiral side wall 7 provided around the outer periphery of the impeller 1, a front plate 9 having an air supply port 8 in a portion facing the inlet 3 of the impeller 1, and a rear plate 10 disposed in a portion facing the main plate 2. It consisted of a casing 6 consisting of. In addition, FIG. 5 shows the b-bit surface of FIG. 4, and in both figures, 11 indicates the discharge port of the casing 6, and 1
2 is a motor rotor that drives the impeller 1, 13 is a stator of the motor, and solid arrows indicate air flow.
第４図および第５図において、羽根車１が回転すること
によって給気口８および吸入口３より羽根車１内に吸引
されたケーシング６外の空気は、羽根車１の遠心力によ
って羽根車１の外周からケーシング６内に流出した後、
ケーシング６内面にそって流れ、吐出口１１よりケーシ
ング６外に吐出されるものである。4 and 5, as the impeller 1 rotates, the air outside the casing 6 sucked into the impeller 1 through the air supply port 8 and the suction port 3 is transferred to the impeller 1 by the centrifugal force of the impeller 1. After flowing out from the outer periphery of 1 into the casing 6,
It flows along the inner surface of the casing 6 and is discharged from the discharge port 11 to the outside of the casing 6.
発明が解決しようとする問題点
しかしながら、上記のような（構成で送風機を大能力化
するためには、羽根車１の外径を大径化する手段が一般
的であった。このため、送風機Ｂが大型化する等の問題
点があった。Problems to be Solved by the Invention However, in order to increase the capacity of the blower with the above-mentioned configuration, it has been common practice to increase the outer diameter of the impeller 1. There were problems such as B becoming larger.
本発明はこのような従来の問題点を解決するもので、ケ
ーシングの後板後方に空洞部を設けることによって送風
機性能を向上略せ、送風機を小型化するものである。The present invention solves these conventional problems, and improves the performance of the blower by providing a cavity behind the rear plate of the casing, thereby reducing the size of the blower.
問題点を解決するための手段
本発明は、主板と副板との間に多数の免を立設した羽根
車と、羽根車の外周囲に設けた渦巻状の側板、羽根車の
副板に対向する部分に給気口を有する耐１板および主板
に対向する部分に配置した仕切板とから成るケーシング
とで送風機を構成し、前記仕切板後方に空洞部を設ける
とともに、仕切板に設けた連通口を介して前記空洞部と
ケーシング内部とを連通でせるとともに、主板にも通気
口を設けたものである。Means for Solving the Problems The present invention provides an impeller in which a large number of isolation plates are provided between the main plate and the sub-plate, a spiral side plate provided around the outer periphery of the impeller, and a sub-plate of the impeller. A blower is constituted by a casing consisting of a single plate having an air supply port on the opposing part and a partition plate placed on the part facing the main plate, and a cavity is provided behind the partition plate, and a The cavity is communicated with the inside of the casing via a communication port, and a ventilation port is also provided in the main plate.
作 用
本発明は上記した構成とすることで、空洞部がケーシン
グ内部で発生する圧力変動等を吸収することによってケ
ーシング内部の空気の流れを安定化し、送風機の性能を
向上きせることかできる。Function: By having the above-described structure, the cavity absorbs pressure fluctuations generated inside the casing, thereby stabilizing the air flow inside the casing and improving the performance of the blower.
実施例
以下、本発明の実施例を第１図、第２図および第３図を
用いて説明する。第２図は第１図のａ−ａ線断面を示す
もので、両図中、実線矢印は空気の流れを示す。また、
第３図は本願構成および従来構成における送風機性能の
比較を無次元性能特性で示すもので、横軸に流量係数グ
を縦軸に圧力係数ダを取って示している。ここで、実線
は本願構成での性能特性を示し、破線は従来構成での性
能特性を示す。Embodiments Hereinafter, embodiments of the present invention will be explained using FIGS. 1, 2, and 3. FIG. 2 shows a cross section taken along line a-a in FIG. 1, and in both figures, solid arrows indicate air flow. Also,
FIG. 3 shows a comparison of blower performance between the configuration of the present invention and the conventional configuration using dimensionless performance characteristics, where the horizontal axis shows the flow coefficient G and the vertical axis shows the pressure coefficient D. Here, the solid line indicates the performance characteristics of the present configuration, and the broken line indicates the performance characteristics of the conventional configuration.
本願構成の遠心型送風機Ａは、第１図、第２図に示すよ
うに、主板２２と吸入口２３を有する副板２４との間に
多数の翼２５を立設した羽根車２１と、羽根車２１の外
周囲に設けた渦巻状の側壁２７、羽根車２１の吸入口２
３に対向する部分に給気口２８を有する前板２９および
主板２２に対向する部分に配置した仕切板３０とから成
るケーシング２６とで構成している。さらに前記仕切板
３０の後方に空洞部３１を設け、この空洞部３１とケー
シング２６内部とを、仕切板３０に設けた連通口３２を
介して連通でせるとともに、羽根車２１の主板２２にも
羽根車２１内部と空洞部３１とを連通すべく通気口３３
を設けている。なお、第１図、第２図において３４はケ
ーシング２６の吐出口を示し、３５は羽根車２１を駆動
する電動機の回転子、３６は電動機の固定子を示す。As shown in FIGS. 1 and 2, the centrifugal blower A having the configuration of the present invention includes an impeller 21 having a large number of blades 25 erected between a main plate 22 and a sub-plate 24 having an inlet 23; A spiral side wall 27 provided around the outer periphery of the wheel 21, an intake port 2 of the impeller 21
The casing 26 includes a front plate 29 having an air supply port 28 at a portion facing the main plate 22, and a partition plate 30 disposed at a portion facing the main plate 22. Further, a cavity 31 is provided behind the partition plate 30, and this cavity 31 and the inside of the casing 26 are communicated through a communication port 32 provided in the partition plate 30. A vent 33 is provided to communicate the inside of the impeller 21 and the cavity 31.
has been established. In FIGS. 1 and 2, 34 indicates a discharge port of the casing 26, 35 indicates a rotor of an electric motor that drives the impeller 21, and 36 indicates a stator of the electric motor.
上記１”１４成において、羽根車２１が回転することに
よって給気口２８および吸入口２３より羽根車′２１内
に吸引きれたケーシング２６外の空気は、羽根車２１の
遠心力によって羽根車２１の外周からケーシング２６内
に流出した後、ケーシング２６内面にそって流れ、吐出
口３４よりケーシング２６外に吐出口３４よりケーシン
グ２６外に吐出されるものである。一方、仕切板３０後
方に空洞部３１を設け、連通口３２を介して仕切板３０
と空洞部３１を連通させることによってケーシング２６
内部で発生する圧力変動等を空洞部３１が吸収する等に
よって、ケーシング２６内部の空気の流れを安定化する
作用を供する。このため、第３図に実線で示すように、
従来構成での送風機性能（第３図中、破線で示す性能）
とくらべて、大幅な性能向上を実現することができるも
のである。In the above-mentioned 1"14 configuration, the air outside the casing 26 that has been sucked into the impeller '21 through the air supply port 28 and the suction port 23 due to the rotation of the impeller 21 is transferred to the impeller 21 by the centrifugal force of the impeller 21. After flowing out into the casing 26 from the outer circumference of the partition plate 30, it flows along the inner surface of the casing 26 and is discharged from the discharge port 34 to the outside of the casing 26.On the other hand, a cavity is formed at the rear of the partition plate 30. A section 31 is provided, and a partition plate 30 is connected through a communication port 32.
By making the cavity 31 communicate with the casing 26
The cavity 31 absorbs pressure fluctuations generated inside the casing 26, thereby providing an effect of stabilizing the air flow inside the casing 26. Therefore, as shown by the solid line in Figure 3,
Blower performance with conventional configuration (performance indicated by broken line in Figure 3)
Compared to this, it is possible to achieve a significant performance improvement.
発明の効果
以上のように、本発明の遠心型送風機によれば次のよう
な効果が得られる。Effects of the Invention As described above, the centrifugal blower of the present invention provides the following effects.
（１） 仕切板の後方に空洞部を設け、連通口を介し
て仕切板と空洞部とを連通させることによって送風機の
性能を低下きせることなく、送風機を小型化することが
できる。(1) By providing a cavity behind the partition plate and communicating the partition plate and the cavity through the communication port, the blower can be made smaller without reducing its performance.
（２）送風機が小型化できるために、送風機から発生す
る騒音を抑制することができ、低騒音の送風機を得るこ
とができる。(2) Since the blower can be miniaturized, the noise generated from the blower can be suppressed, and a low-noise blower can be obtained.
第１図は本発明の一実施例を示す遠心型送風機の断面図
、第２図は第１図のａ −ａ線断面図、第３図は本願お
よび従来における送風機性能の比較を無次元性能特性で
示す特性図、第４図は従来例を示す断面図、第５図は第
４図のｂ−ｂ線断面図である。
である。
Ａ・・・・・・送風機、２１・・・・・・羽根車、２２
・・・・・主板、２４・・・・・・副板、２５−・・・
・・翼、２６・・・・・・ケーシング゛、２７・・・・
・・側壁、２８・・・・・・給気口、２９・・・・・・
ｎｉＩ板、３０・・・・・・仕切板、３１・・・・・空
洞部、３２・・・・・連通口、３３・・・・・・通気口
。
代理人の氏名 弁理士 中 尾 敏 男 ｔｌか」６第
２図
第３図
濃う１釆枚ζFig. 1 is a sectional view of a centrifugal blower showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line a-a in Fig. 1, and Fig. 3 shows a comparison of the performance of the blower according to the present invention and the conventional blower. FIG. 4 is a sectional view showing a conventional example, and FIG. 5 is a sectional view taken along line bb in FIG. 4. It is. A... Blower, 21... Impeller, 22
...Main plate, 24...Sub-plate, 25-...
...Wing, 26...Casing, 27...
...Side wall, 28...Air supply port, 29...
niI plate, 30...Partition plate, 31...Cavity, 32...Communication port, 33...Vent hole. Name of agent: Patent attorney Toshio Nakao Tl?6 Figure 2 Figure 3
Claims (2)
と、羽根車の外周囲に設けた渦巻状の側壁、羽根車の副
板に対向する部分に給気口を有する前板および主板に対
向する部分に配置した仕切板とから成るケーシングとで
送風機を構成し、前記仕切板後方に空洞部を設けるとと
もに、仕切板に設けた連通口を介して前記空洞部とケー
シング内部とを連通させた遠心型送風機。(1) An impeller with a large number of blades installed between the main plate and the sub-plate, a spiral side wall around the outer periphery of the impeller, and an air supply port in the part of the impeller that faces the sub-plate. A blower is constituted by a casing consisting of a front plate and a partition plate placed in a portion facing the main plate, and a cavity is provided behind the partition plate, and the cavity and the casing are connected through a communication port provided in the partition plate. A centrifugal blower that communicates with the inside.
載の遠心型送風機。(2) The centrifugal blower according to claim 1, wherein the main plate is provided with a vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13228886A JPH0658118B2 (en) | 1986-06-06 | 1986-06-06 | Centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13228886A JPH0658118B2 (en) | 1986-06-06 | 1986-06-06 | Centrifugal blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62288395A true JPS62288395A (en) | 1987-12-15 |
| JPH0658118B2 JPH0658118B2 (en) | 1994-08-03 |
Family
ID=15077778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13228886A Expired - Lifetime JPH0658118B2 (en) | 1986-06-06 | 1986-06-06 | Centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0658118B2 (en) |
-
1986
- 1986-06-06 JP JP13228886A patent/JPH0658118B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0658118B2 (en) | 1994-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62186145A (en) | Ventilation fan | |
| JPS58195098A (en) | Vaccum cleaner | |
| JPS62288395A (en) | Centrifugal type fan | |
| JPS58101297A (en) | Double suction type multiblade fan | |
| JPS5891395A (en) | Double suction type multi-blade fan | |
| JPS5844298A (en) | Blower | |
| CN215370350U (en) | Double-impeller brushless fan | |
| JP2746581B2 (en) | Ventilation fan | |
| JPS6223255Y2 (en) | ||
| JPH063321Y2 (en) | Ventilation fan | |
| JPS5990799A (en) | Vacuum cleaner | |
| JPS61258994A (en) | Multiblade fan | |
| JPS6030550Y2 (en) | soundproof box | |
| JPS59105917U (en) | air conditioner | |
| JP4572452B2 (en) | Electric blower | |
| JPS60243398A (en) | Centrifugal fan | |
| JPS6022258Y2 (en) | Ventilation fan for duct | |
| JPS63295897A (en) | Multiblade fan | |
| JPS62113896A (en) | Centrifugal type blower | |
| JPH0424339Y2 (en) | ||
| JPH0580600B2 (en) | ||
| JPS5890396U (en) | Blower | |
| JPS6436700U (en) | ||
| JPS61294197A (en) | Motor-driven blower | |
| JPH0730759B2 (en) | Outer Tautauan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |