JPS6361800A - Axial fan - Google Patents
Axial fanInfo
- Publication number
- JPS6361800A JPS6361800A JP20569186A JP20569186A JPS6361800A JP S6361800 A JPS6361800 A JP S6361800A JP 20569186 A JP20569186 A JP 20569186A JP 20569186 A JP20569186 A JP 20569186A JP S6361800 A JPS6361800 A JP S6361800A
- Authority
- JP
- Japan
- Prior art keywords
- fan blade
- motor
- view
- fan
- rotor
- 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
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 101100129922 Caenorhabditis elegans pig-1 gene Proteins 0.000 description 1
- 101100520057 Drosophila melanogaster Pig1 gene Proteins 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は軸流送風機のファンブレ−ド１の形状に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the shape of a fan blade 1 of an axial blower.
ごの発明は軸流送風機において、ファンブレード１のロ
ータ軸５に対する垂直な平面と、ロータ軸５を中心とす
る円筒によるファンブレード１の断面の両端部を結ぶ線
分とのなす角を、ファンブレード１の最内周と最外周よ
りその中央部を大きくすることにより、軸流送風機の効
率を向上するようにしたものである。In this invention, in an axial flow blower, the angle between the plane perpendicular to the rotor axis 5 of the fan blade 1 and the line segment connecting both ends of the cross section of the fan blade 1 formed by a cylinder centered on the rotor axis 5 is defined as the angle of the fan blade 1. By making the central portion of the blade 1 larger than the innermost and outermost circumferences, the efficiency of the axial blower is improved.
従来の送風機の構成は第２図及び第３図に示すように複
数枚のファンブレード１を付けたハブ２からなるロータ
部をロータ軸５を中心に回転させるモータ３と、モータ
３を保持し外部に取付けるケース４からなる。As shown in FIGS. 2 and 3, a conventional blower has a structure including a motor 3 that rotates a rotor part consisting of a hub 2 with a plurality of fan blades 1 attached thereto around a rotor shaft 5, and a motor 3 that holds the motor 3. It consists of a case 4 that is attached to the outside.
次にファンブレード１の取付角を定義する。前記ロータ
部の平面図を第４図に示す。第４図において、ファンブ
レード１のロータ軸５を中心とする円筒断面を層間した
ものを第５図に示す。ロータ軸５に垂直でファンブレー
ド１の前端３点６を通る平面と前記円筒との交線は直線
Ａ１２となり、ファンブレードｌの前端３点６と後端４
点９を結ぶ直線は直線Ｂ１３となり、そのなす角はＸと
表わされ、これを取付角と呼ぶ。同様に５点７と０点１
０に対しては取付角Ｙ、ｃ点８と１点１１に対しては取
付角Ｚが定まる。Next, the mounting angle of the fan blade 1 will be defined. A plan view of the rotor section is shown in FIG. FIG. 5 shows a cylindrical cross-section of the fan blade 1 centered on the rotor shaft 5 in FIG. 4, which is interlayered. The line of intersection between the cylinder and a plane perpendicular to the rotor axis 5 and passing through the three points 6 at the front end of the fan blade 1 is a straight line A12, and the line between the three points 6 at the front end of the fan blade 1 and the rear end 4 is a straight line A12.
The straight line connecting the points 9 is a straight line B13, and the angle formed by it is expressed as X, which is called the installation angle. Similarly, 5 points 7 and 0 points 1
The mounting angle Y is determined for 0, and the mounting angle Z is determined for points c 8 and 11.
ここにおいて従来の軸流送風機は、風の流れをファンブ
レードｌの内周部及び外周部とも−様と考えて、回転に
おける周速に伴って、前記取付角を外周部から内周部に
かげ徐々に増加させ、Ｘ≦Ｙ≦Ｚとすることによって、
ファンブレード１全体で効率よく風を起こすようになっ
ていた。Here, in a conventional axial blower, the air flow is considered to be similar to the inner and outer circumferential parts of the fan blade l, and the mounting angle is changed from the outer circumferential part to the inner circumferential part according to the circumferential speed during rotation. By gradually increasing and setting X≦Y≦Z,
The entire fan blade 1 was designed to efficiently generate wind.
しかしながら、風の流れを見ると外周部及び内周部では
、ケース４の内周端とハブ２で風が絞られるため、方向
が急に変わりきれず、ファンブレード１の内外周部では
風の流れに渦が生ずる。However, when looking at the flow of air, the direction cannot change suddenly because the air is constricted by the inner edge of the case 4 and the hub 2 at the outer and inner circumferences, and at the inner and outer circumferences of the fan blades A vortex is created in the flow.
一般にファンブレード１は取付角が大きくなればそれだ
け風を多量に送ることができるが、上記のように渦が発
止したり、流れが乱されると取付角の割には風を送るこ
とができずに負荷を増やすだけとなる。また外周部では
、ケース４とファンブレード１のすきまから圧力差によ
る空気の逆流もあり、従来のようにファンブレードの内
周部から外周部にかけて−様な送風を期待することに対
して、風量の割に負荷が増え、軸流送風機としての効率
を悪化させるという欠点を存していた。Generally speaking, the larger the mounting angle of the fan blade 1, the more air it can send, but if a vortex is generated or the flow is disturbed as described above, the fan blade 1 will not be able to send as much air as the mounting angle. This will only increase the load. In addition, at the outer periphery, there is a backflow of air due to the pressure difference from the gap between the case 4 and the fan blade 1, and the air volume is However, it had the disadvantage that the load increased in proportion to the current flow rate, and the efficiency of the axial flow fan deteriorated.
又、前記のような渦の発生は効率の低下とともに、騒音
を発生させ、使用環境の悪化をもたらすという欠点も有
していた。In addition, the generation of vortices as described above not only reduces efficiency but also generates noise and has the disadvantage of deteriorating the operating environment.
そこでこの発明は従来のこのような欠点を解決するため
、ファンブレード１の各部に最適な風の流れを与え、効
率を向上させ騒音の低い軸流送風機を得ることを目的と
する。Therefore, in order to solve these conventional drawbacks, the present invention aims to provide an axial flow blower that provides optimal air flow to each part of the fan blade 1, improves efficiency, and produces low noise.
上記問題点を解決するためにこの発明は、軸流送風機の
ファンブレード１の内周部、中央部、外周部の取付角Ｘ
、Ｙ、Ｚの関係をｘ＜ｙ、ｚ＜ｙとした。In order to solve the above-mentioned problems, the present invention solves the following problems:
, Y, and Z are set to x<y, z<y.
上記のように構成されたファンブレード１を備えた軸流
送風機は、ファンブレード１の内周部及び外周部では取
付角を小さくすることによって、ファンブレード１のモ
ータ３の回転方向に対する投影面積を小さくすることに
より、回転５（荷を減少させることになる。スルない風
の流れに対し無理のない取付角とすることで空気の渦の
発生をも押さえることになる。これに対しファンブレー
ド１の中央部では、内外周部に比べ風の流れがスムーズ
なため取付角を大きくすることができ、内外周部で減少
した風量を効果的に取ることができ、大きな取付角でも
渦の発生を小さくすることができる。The axial blower equipped with the fan blade 1 configured as described above reduces the projected area of the fan blade 1 in the rotational direction of the motor 3 by reducing the mounting angle at the inner and outer peripheral parts of the fan blade 1. By making it smaller, the rotation 5 (load) will be reduced.By making the mounting angle reasonable against the smooth wind flow, it will also suppress the generation of air vortices.In contrast, the fan blade 1 Because the air flow is smoother in the central part of the center compared to the inner and outer peripheries, the installation angle can be increased, and the reduced air volume at the inner and outer peripheries can be effectively absorbed, preventing the generation of vortices even at large installation angles. Can be made smaller.
以下にこの発明の実施例を図面にもとづいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図は本発明の第一の実施例の斜視図で、４枚のファ
ンブレード１とハブ２からなるローフ部をロータ軸５を
中心に回転させるモータ３とモータ３を保持し、外部に
取付けるケース４からなり、ケース４はファンブレード
１０回転に添った円形の穴を明けた板状のものである。FIG. 1 is a perspective view of a first embodiment of the present invention, in which a loaf portion consisting of four fan blades 1 and a hub 2 is rotated around a rotor shaft 5, and a motor 3 is held, and the motor 3 is It consists of a case 4 to which it is attached, and the case 4 is a plate-shaped one with a circular hole corresponding to 10 rotations of the fan blade.
ファンブレード１の取付角は中央部を大きく、内外周部
を小さくすることによって、同じファンブレードの口径
でも、各部の風の流れを最適化することによって風量を
多（し、騒音を下げることができる。By making the mounting angle of the fan blade 1 larger in the center and smaller in the inner and outer peripheral parts, even with the same fan blade diameter, the air flow can be increased (and noise reduced) by optimizing the air flow in each part. can.
第６図、第７図は本発明の他の実施例のロータ部斜視図
で、第６図は第１図のように上方の厚み制限のあるもの
に対して、制限のない場で、中央部の翼長（ファンブレ
ード１の前端から後端までの距鋪）を長くし、さらに風
量を多くとれるようにしたものである。第７図はファン
ブレード１の枚数を８枚としたもので、これ以上でも可
能であり、又ハブ部の径を小さくしたものでもある。こ
うすることによって、風景の向上したり、同風量なら厚
みを薄くすることもできる。6 and 7 are perspective views of the rotor portion of other embodiments of the present invention, and FIG. 6 is a rotor part perspective view of another embodiment of the present invention. The blade length (distance from the front end to the rear end of the fan blade 1) of the fan blade 1 is made longer, so that a larger amount of air can be obtained. In FIG. 7, the number of fan blades 1 is eight, but it is possible to have more than this number, or the diameter of the hub portion can be made smaller. By doing this, the scenery can be improved, and the thickness can be made thinner for the same amount of air.
第８図は本発明の他の実施例の斜視図で、ケース４を直
方体状とし、ファンブレード１に対し厚め方向に凪の流
れを規制するために、外周部の逆流が少なくなり、圧力
差を比較的Ｑこ高くとれる。FIG. 8 is a perspective view of another embodiment of the present invention, in which the case 4 is shaped like a rectangular parallelepiped, and in order to restrict the calm flow in the thicker direction with respect to the fan blade 1, the back flow at the outer circumference is reduced, and the pressure difference can be obtained with a relatively high Q.
この場合は風の流れがより大きく規制されるので従来で
はファンブレード１に対する欠点が大きく本発明の効果
がさらに大きい。第９図は第８図のケース４部分を一割
削り、材料費の節減を計ったものである。、第１０図は
ファンブレード１の外周にリングを付けたもので、モー
タを外周に配置することもできる実施例である。In this case, the flow of air is restricted to a greater extent, which is a drawback to the conventional fan blade 1, and the effect of the present invention is even greater. Figure 9 shows a case in which part 4 of the case in Figure 8 has been removed by 10% to reduce material costs. , FIG. 10 shows an embodiment in which a ring is attached to the outer periphery of the fan blade 1, and a motor can also be arranged on the outer periphery.
第１１図はケースを大幅に省略したもので、ファンブレ
ード１の翼長を外周部にいくに従って小さくする。外周
部の効率を上げるためで、取付角を小さくするのと同等
の効果がある。In FIG. 11, the case is largely omitted, and the blade length of the fan blade 1 is made smaller toward the outer periphery. This is to increase the efficiency of the outer periphery, and has the same effect as reducing the mounting angle.
第１２図はケース４をダクト状にしたもので空気の流れ
をなめらかにし、効率を上げたものである。In Fig. 12, the case 4 is shaped into a duct to smooth the flow of air and improve efficiency.
この発明は以上説明したように、ファンブレード１の取
付角を内外周部より大きくすることにより、風の流れに
対してファンブレード１の取付角を最適値とし、軸流送
風機の効率を向上させ、空気の渦の発生を押さえて騒音
の低減をするという効果を有する。As explained above, this invention improves the efficiency of the axial blower by making the mounting angle of the fan blade 1 larger than the inner and outer peripheral parts, thereby optimizing the mounting angle of the fan blade 1 with respect to the wind flow. This has the effect of suppressing the generation of air vortices and reducing noise.
第１図は本発明の実施例の斜視図である。第２図は従来
の軸流送風機の斜視図である。第３図は従来の軸流送風
機の断面図である。第４図はロータ部の平面図である。
第５図はファンブレードの円筒断面展開図である。第６
図は本発明の他の実施例のロータ部斜視図である。第７
図は本発明の他の実施例のロータ部斜視図である。第８
図は本発明の他の実施例の斜視図である。第９図は本発
明の他の実施例の斜視図である。第１０図は本発明の他
の実施例の斜視図である。第１１図は本発明の他の実施
例の斜視図である。第１２図は本発明の他の実施例の斜
視図である。
１・・・ファンブレード
２・・・ハブ
３・・・モータ
４・・・ケース
５・・・ロータ軸
以上
出願人 セイコー電子部品株式会社
区
ト
仁ネ
く・Ｎ＼
本発明のイ也の実施な（の斜視図
第９図
本発明の惠の亥獅−１の剰゛視図
第１０図FIG. 1 is a perspective view of an embodiment of the invention. FIG. 2 is a perspective view of a conventional axial flow blower. FIG. 3 is a sectional view of a conventional axial flow blower. FIG. 4 is a plan view of the rotor section. FIG. 5 is a developed view of a cylindrical cross section of the fan blade. 6th
The figure is a perspective view of a rotor section of another embodiment of the present invention. 7th
The figure is a perspective view of a rotor section of another embodiment of the present invention. 8th
The figure is a perspective view of another embodiment of the invention. FIG. 9 is a perspective view of another embodiment of the invention. FIG. 10 is a perspective view of another embodiment of the invention. FIG. 11 is a perspective view of another embodiment of the invention. FIG. 12 is a perspective view of another embodiment of the invention. 1...Fan blade 2...Hub 3...Motor 4...Case 5...Rotor shaft and above Applicant Seiko Electronic Components Co., Ltd. Fig. 9 Perspective view of the Pig-1 of the present invention Fig. 10
Claims (1)
ータ軸中心に回転させるモータと、モータを保持し外部
に取り付けるケースからなる軸流送風機において、一枚
のファンブレードをロータ軸を中心とする円筒によって
切った断面の両端部をつなぐ直線と、ロータ軸に対する
垂直な平面とのなす角度が、ファンブレードの最外周か
ら最内周にいたる範囲で極大値を持つファンブレードを
備えた軸流送風機。An axial blower consists of a motor that rotates a rotor part consisting of multiple fan blades and a hub around the rotor axis, and a case that holds the motor and attaches it to the outside. An axial flow blower equipped with fan blades in which the angle between the straight line connecting both ends of the cross section cut by and the plane perpendicular to the rotor axis has a maximum value in the range from the outermost circumference to the innermost circumference of the fan blade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20569186A JPS6361800A (en) | 1986-09-01 | 1986-09-01 | Axial fan |
| EP87307335A EP0259061A3 (en) | 1986-09-01 | 1987-08-19 | Axial flow fan and fan blade therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20569186A JPS6361800A (en) | 1986-09-01 | 1986-09-01 | Axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6361800A true JPS6361800A (en) | 1988-03-17 |
Family
ID=16511109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20569186A Pending JPS6361800A (en) | 1986-09-01 | 1986-09-01 | Axial fan |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0259061A3 (en) |
| JP (1) | JPS6361800A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5905985B1 (en) * | 2015-08-18 | 2016-04-20 | 山洋電気株式会社 | Axial flow fan and serial type axial flow fan |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9420536D0 (en) * | 1994-10-12 | 1994-11-30 | Dunphy Christopher M | A destratification fan |
| DE29821675U1 (en) * | 1998-12-04 | 1999-02-25 | Sunonwealth Electr Mach Ind Co | Fan blade and fan with such fan blades |
| DE102012004617A1 (en) | 2012-03-06 | 2013-09-12 | Ziehl-Abegg Ag | Axial |
| ITMI20120451A1 (en) * | 2012-03-22 | 2013-09-23 | Elica Spa | IMPELLER FOR AXIAL FLUID CONVEYANCE, IN PARTICULAR FOR REFRIGERATION SYSTEMS |
| RU195333U1 (en) * | 2019-11-19 | 2020-01-23 | Общество с ограниченной ответственностью "АЭРДИН" | FAN AXIAL DRIVER BLADE |
| CN114832608B (en) * | 2021-02-01 | 2023-03-17 | 中国石油化工股份有限公司 | Comprehensive emergency station for dangerous chemical leakage emergency disposal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5783696A (en) * | 1980-11-14 | 1982-05-25 | Nippon Denso Co Ltd | Fan |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB376647A (en) * | 1932-01-01 | 1932-07-14 | William Alexander | Improvements in the blades of screw rotors for operating with any fluid |
| US2097389A (en) * | 1932-07-07 | 1937-10-26 | Mey Rene De | Fan blade or the like |
| GB848278A (en) * | 1957-04-16 | 1960-09-14 | Enso Gutzeit Oy | Improvements in or relating to impellers |
| US3334807A (en) * | 1966-03-28 | 1967-08-08 | Rotron Mfg Co | Fan |
| DE1778585A1 (en) * | 1967-06-10 | 1971-08-19 | Marelli & C Spa Ercole | Electric fan for mounting on a wall |
| JPS5688995U (en) * | 1979-12-12 | 1981-07-16 |
-
1986
- 1986-09-01 JP JP20569186A patent/JPS6361800A/en active Pending
-
1987
- 1987-08-19 EP EP87307335A patent/EP0259061A3/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5783696A (en) * | 1980-11-14 | 1982-05-25 | Nippon Denso Co Ltd | Fan |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5905985B1 (en) * | 2015-08-18 | 2016-04-20 | 山洋電気株式会社 | Axial flow fan and serial type axial flow fan |
| JP2017040179A (en) * | 2015-08-18 | 2017-02-23 | 山洋電気株式会社 | Axial blower and serial type axial blower |
| US10344764B2 (en) | 2015-08-18 | 2019-07-09 | Sanyo Denki Co., Ltd. | Axial blower and series-type axial blower |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0259061A3 (en) | 1989-02-22 |
| EP0259061A2 (en) | 1988-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100566501B1 (en) | Air blower apparatus and outdoor unit of air conditioner using the same | |
| JP4442029B2 (en) | Blower | |
| AU2013321833A1 (en) | Propeller fan and air conditioner equipped with same | |
| JP4697132B2 (en) | Air conditioner | |
| KR20080019521A (en) | Propeller fan | |
| JP3918207B2 (en) | Air conditioner | |
| JPS6361800A (en) | Axial fan | |
| JP3366265B2 (en) | Centrifugal blower | |
| JPH08240197A (en) | Axial-flow fan | |
| CN100430608C (en) | Vortex flow fan | |
| JPH06264897A (en) | Axial flow fan | |
| JPH10311294A (en) | Centrifugal blower | |
| JPH05106592A (en) | Axial flow fan for air-conditioner | |
| JP2753182B2 (en) | Axial fan | |
| JP3460350B2 (en) | Cross flow fan | |
| JP2001263295A (en) | Centrifugal air blower | |
| JPH05340265A (en) | Radial turbine moving blade | |
| JP2000002197A (en) | Propeller fan | |
| CN215171036U (en) | Centrifugal impeller and centrifugal fan | |
| JPS6229799A (en) | Electrically-driven blower | |
| CN215719781U (en) | Centrifugal impeller and centrifugal fan | |
| CN210599557U (en) | Centrifugal fan and range hood | |
| JPS60166789A (en) | Vane wheel for transverse-flow blower | |
| WO2023281994A1 (en) | Air blowing device and air conditioning system including same | |
| WO2007097802A2 (en) | Cooling fan with integral housing and impeller |