JP4572633B2 - Blower impeller for air conditioning - Google Patents

Blower impeller for air conditioning Download PDF

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JP4572633B2
JP4572633B2 JP2004261052A JP2004261052A JP4572633B2 JP 4572633 B2 JP4572633 B2 JP 4572633B2 JP 2004261052 A JP2004261052 A JP 2004261052A JP 2004261052 A JP2004261052 A JP 2004261052A JP 4572633 B2 JP4572633 B2 JP 4572633B2
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wing
auxiliary
main wing
main
hub
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JP2006077632A (en
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善樹 泉
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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    • 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

Description

本発明は、空気調和機に用いられる空調用送風機羽根車に関するもので、特に、同羽根車の静圧効率の向上と高静圧・低騒音化に関わる構成に関するものである。   The present invention relates to an air-conditioning fan impeller used in an air conditioner, and more particularly to a configuration related to improvement of static pressure efficiency and high static pressure / low noise of the impeller.

従来、主翼に対して補助翼を設けた羽根車が有る（例えば、特許文献１参照）。図１０は特許文献１に記載された従来の空調用送風機羽根車を示すものである。図１０に示すように、ラジエター５０の下流側にシュラウドリング５１と、ハブ５２に固定された主翼５３とに必要なクリアランスをとり、補助翼５４が主翼５３の中心より下流側にオフセットされて主翼５３に設置されている。この構成により、チップクリアランスの隙間の部分の流れを増速して、チップクリアランス部の逆流を減少させて、ファン効率を向上させると言うものである。
特開平１０−２０５３３０号公報 Conventionally, there is an impeller in which auxiliary wings are provided on the main wing (see, for example, Patent Document 1). FIG. 10 shows a conventional air-conditioning fan impeller described in Patent Document 1. In FIG. As shown in FIG. 10, the clearance required for the shroud ring 51 and the main wing 53 fixed to the hub 52 is provided on the downstream side of the radiator 50, and the auxiliary wing 54 is offset downstream from the center of the main wing 53. 53. With this configuration, the flow in the gap portion of the tip clearance is accelerated, the backflow of the tip clearance portion is reduced, and the fan efficiency is improved.
JP-A-10-205330

しかしながら、上記の従来の構成では、主翼５３のチップクリアランスに生じる逆流を減少させてファン効率を向上させようとするものであり、補助翼５４によるファン効率改善効果は、微細である。却って、補助翼５４によって騒音が増加するものである。更に、翼枚数は、２枚以上の複数枚であり、空力性能寄与に対する翼面積の投入量が大きく、この事により翼による流体摩擦が大きくなり、ファン効率の向上には、ある程度の限界があった。   However, in the conventional configuration described above, the reverse flow generated in the tip clearance of the main wing 53 is reduced to improve the fan efficiency, and the effect of improving the fan efficiency by the auxiliary wing 54 is minute. On the other hand, noise is increased by the auxiliary blades 54. Furthermore, the number of blades is two or more, and the amount of blade area input for aerodynamic performance contribution is large, which increases fluid friction by the blades, and there is a certain limit to improving fan efficiency. It was.

本発明は、前記従来の課題を解決するもので、回転騒音を低減する空調用送風機羽根車を提供することを目的とする。   This invention solves the said conventional subject, and it aims at providing the air blower impeller which reduces rotation noise.

上記課題を解決するために請求項１に記載の発明は、円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、主翼の外周側弦長がハブ側弦長より長く、主翼の前縁を半径方向に対して回転方向に前傾した螺旋曲線にて構成し、主翼の間に翼枚数が全体として２枚からなる補助翼を設け、補助翼は外周側弦長がハブ側弦長より長く、補助翼の前縁を半径方向の直線とし、補助翼の半径方向長さが主翼の半径方向長さより短く、且つ、補助翼の外周側の羽根高さが同円周部の主翼の羽根高さより高く構成した空調用送風機羽根車を提供するものである。 In order to solve the above-mentioned problem, the invention described in claim 1 is directed to a mixed flow fan in which a plurality of blades are provided on a truncated cone-shaped hub. side chord length is longer than the hub-side chord length, constitutes the leading edge of the wing at threaded旋曲rays anteversion in the rotational direction with respect to the radial direction, that Do two sheets as a whole wings number between wing the auxiliary wings provided, ailerons outer peripheral side chord length is longer than the hub-side chord length, a leading edge of the aileron and radial straight lines, the radial length of the aileron shorter than the radial length of the main wing, and The present invention provides an air conditioner blower impeller configured such that the blade height on the outer peripheral side of the auxiliary blade is higher than the blade height of the main wing of the circumferential portion.

上記構成によって、主翼の枚数が２枚であるので、主に空力性能に寄与する翼面積の投入量が適正であるので、流体摩擦が少なく、ファン効率が非常に高い。また、主翼の前縁を半径方向に対して回転方向に前傾した螺旋曲線にすることで、螺旋曲線の頂点を起点として、主翼の翼端渦が発生するので、翼端渦の発生の状況を規定する作用を有する。そのため、補助翼の半径方向長さが主翼の半径方向長さより短いので、主翼から発生する翼端渦に補助翼が、干渉することなく、主翼の前縁の螺旋曲線の頂点が翼端渦をコントロールできるものであり、羽根車としての騒音も充分に低くできる。また、主翼の間に設けられた補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高いので、補助翼は充分に空力仕事に寄与するので、回転騒音Ｎｚ音のレベルが乱流騒音のレベルより充分に低く、聴感も良好であり、斜流ファンであることは遠心力場による圧力上昇があるので、プロペラファンより高静圧化を達成する事ができる。 With the above configuration, since the number of main wings is two, the input amount of the wing area mainly contributing to aerodynamic performance is appropriate, so that there is little fluid friction and fan efficiency is very high. Moreover, by the screw旋曲lines the leading edge tilted forward in the rotational direction with respect to the radial direction of the main wing, starting from the apex of the spiral curve, since tip vortices of the main wing is generated, generation of tip vortex It has the effect of defining the situation. Therefore, since the radial length of the auxiliary wing is shorter than the radial length of the main wing, the auxiliary wing does not interfere with the tip vortex generated from the main wing, and the apex of the spiral curve at the leading edge of the main wing causes the tip vortex to It can be controlled, and the noise as an impeller can be reduced sufficiently. Also, since the outer blade height of the auxiliary wing provided between the main wings is higher than the blade height of the main wing of the same circumferential portion, the auxiliary wing sufficiently contributes to aerodynamic work, so the level of rotational noise Nz sound is Since it is sufficiently lower than the level of turbulent noise and has good audibility, and a mixed flow fan has a pressure increase due to the centrifugal force field, it can achieve higher static pressure than a propeller fan.

請求項２に記載の発明は、円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、主翼の外周側弦長がハブ側弦長より長く、主翼の前縁を半径方向の直線とし、主翼の間に翼枚数が全体として２枚からなる補助翼を設け、補助翼は外周側弦長がハブ側弦長より長く、補助翼の前縁を半径方向に対して回転方向に前傾させた直線で構成し、補助翼の半径方向長さが主翼の半径方向長さより短く、且つ、補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高く構成した空調用送風機羽根車を提供するものである。 According to the second aspect of the present invention, in the mixed flow fan in which a plurality of blades are provided on a truncated cone-shaped hub, a main wing having two blades is provided, and a chord length on the outer peripheral side of the main wing is a hub side chord. longer than, the front edge of the main wing to the radial direction of a straight line, the Ru auxiliary blade name of two whole wings number between the wing provided, ailerons outer peripheral side chord length is longer than the hub-side chord length, It consists of a straight line with the leading edge of the auxiliary wing tilted forward in the rotational direction with respect to the radial direction, the radial length of the auxiliary wing is shorter than the radial length of the main wing, and the outer wing height of the auxiliary wing is An air conditioner blower impeller configured to be higher than the blade height of the main wing in the circumferential portion is provided.

上記構成によって、主翼の枚数が２枚であるので、主に空力性能に寄与する翼面積の投入量が適正であるので、流体摩擦が少なく、ファン効率が非常に高い。また、補助翼の前縁を半径方向に対して回転方向に前傾させた直線にしていることで、補助翼が斜めに空気を切るので、補助翼の前縁が空気を切る時間のタイミングがずれるので、補助翼の空力仕事による騒音が小さくなり、羽根車全体として、更に、低騒音化を図れるものである。また、主翼の間に設けられた補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高いので、補助翼は充分に空力仕事に寄与するので、回転騒音Ｎｚ音のレベルを充分に低減できて、聴感も良好であり、斜流ファンなのでプロペラファンより高静圧化を達成することができる。 With the above configuration, since the number of main wings is two, the input amount of the wing area mainly contributing to aerodynamic performance is appropriate, so that there is little fluid friction and fan efficiency is very high. In addition , since the front edge of the auxiliary wing is a straight line inclined forward in the rotation direction with respect to the radial direction , the auxiliary wing cuts air diagonally, so the timing of the time when the front edge of the auxiliary wing cuts air is As a result, the noise caused by the aerodynamic work of the auxiliary blades is reduced, and the noise of the impeller as a whole can be further reduced. In addition, since the blade height on the outer peripheral side of the auxiliary wing provided between the main wings is higher than the blade height of the main wing on the same circumferential portion, the auxiliary wing sufficiently contributes to aerodynamic work, so the level of rotational noise Nz sound is reduced. It can be sufficiently reduced, has good audibility, and is a mixed flow fan, so it can achieve higher static pressure than a propeller fan.

請求項３に記載の発明は、円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、主翼の外周側弦長がハブ側弦長より長く、主翼の前縁を半径方向の直線とし、主翼の間に翼枚数が全体として２枚からなる補助翼を設け、補助翼は外周側弦長がハブ側弦長より長く、補助翼の前縁を半径方向に対して回転方向に前傾させた螺旋曲線にて構成し、補助翼の半径方向長さが主翼の半径方向長さより短く、且つ、補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高く構成した空調用送風機羽根車を提供するものである。 According to a third aspect of the present invention, in a mixed flow fan in which a plurality of blades are provided on a truncated cone-shaped hub, a main wing having two blades is provided, and a chord length on the outer peripheral side of the main wing is a hub side chord. longer than, the front edge of the main wing to the radial direction of a straight line, the Ru auxiliary blade name of two whole wings number between the wing provided, ailerons outer peripheral side chord length is longer than the hub-side chord length, The auxiliary blade is configured with a spiral curve in which the leading edge of the auxiliary wing is tilted forward in the rotational direction with respect to the radial direction, the radial length of the auxiliary wing is shorter than the radial length of the main wing, and the blade height on the outer peripheral side of the auxiliary wing The present invention provides a blower impeller for air conditioning that is configured to be higher than the blade height of the main wing of the same circumferential portion.

そうして、この構成によって、補助翼の前縁を回転方向に前傾させた螺旋曲線にしているので、補助翼が斜めに空気を切るので、補助翼の前縁が空気を切る時間のタイミングがずれるので、補助翼の空力仕事による騒音が小さくなり、羽根車全体として、更に、低騒音化を図れるものである。また、主翼の間に設けられた補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高いので、補助翼は充分に空力仕事に寄与するので回転騒音Ｎｚ音のレベルを充分に低減できて、聴感も良好であり、斜流ファンなので遠心力場に夜圧力上昇があるので、プロペラファンより高静圧化を達成することができる。   By this configuration, since the leading edge of the auxiliary wing has a spiral curve in which the leading edge of the auxiliary wing is tilted forward in the rotation direction, the auxiliary wing cuts air diagonally, so the timing of the time when the leading edge of the auxiliary wing cuts air Therefore, the noise due to the aerodynamic work of the auxiliary blades is reduced, and the noise of the impeller as a whole can be further reduced. In addition, since the blade height on the outer peripheral side of the auxiliary wing provided between the main wings is higher than the blade height of the main wing on the same circumferential portion, the auxiliary wing sufficiently contributes to aerodynamic work, so that the level of rotational noise Nz sound is sufficient. Since it is a mixed flow fan and there is an increase in night pressure in the centrifugal force field, higher static pressure can be achieved than a propeller fan.

本発明の空調用送風機羽根車は、主翼の間に設けられた補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高いので、補助翼は充分に空力仕事に寄与する。そこで、翼枚数ｚと回転数Ｎｒｐｍとすると、全体として、翼枚数は４枚と言え、それぞれ、充分に空力仕事をするので、空力仕事が分散させるので、翼１枚当たりの翼面上の圧力変動のレベルが小さくなり、回転騒音Ｎｚ音のレベルは、乱流騒音のレベルより低く、聴感も良好である。また、補助翼の半径方向長さが主翼の半径方向長さより短いので、主翼から発生する翼端渦に補助翼が、干渉することがなく、羽根車としての騒音も低くできる。更に、斜流ファンであるので遠心力場による圧力上昇があるので、プロペラファンより高静圧を達成する事が出来る。また、主翼が２枚なので、翼の流体摩擦が小さく、ファンの静圧効率を従来以上に高くすることが出来る。 In the air-conditioning fan impeller of the present invention, the auxiliary blade provided between the main wings has an outer peripheral blade height higher than the blade height of the main wing in the same circumferential portion, so the auxiliary blade sufficiently contributes to aerodynamic work. Therefore, if the number of blades z and the number of revolutions Nrpm are considered, the number of blades as a whole can be said to be four, and each of them performs aerodynamic work sufficiently, so the aerodynamic work is dispersed, so the pressure on the blade surface per blade The level of fluctuation is reduced, the level of the rotational noise Nz sound is lower than the level of turbulent noise, and the audibility is good. Further, since the radial length of the auxiliary wing is shorter than the radial length of the main wing, the auxiliary wing does not interfere with the tip vortex generated from the main wing, and the noise as the impeller can be reduced. Furthermore, since it is a mixed flow fan, there is a pressure increase due to the centrifugal force field, so that a higher static pressure can be achieved than a propeller fan. Further, since there are two main wings, the fluid friction of the wings is small and the static pressure efficiency of the fan can be made higher than before.

第１の発明は、円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、主翼の外周側弦長がハブ側弦長より長く、主翼の前縁を半径方向に対して回転方向に前傾した螺旋曲線にて構成し、主翼の間に翼枚数が全体として２枚からなる補助翼を設け、補助翼は外周側弦長がハブ側弦長より長く、補助翼の前縁を半径方向の直線とし、補助翼の半径方向長さが主翼の半径方向長さより短く、且つ、補助翼の外周側の羽根高さが同円周部の主翼の羽根高さより高く構成した空調用送風機羽根車を提供するものである。 According to a first aspect of the present invention, in a mixed flow fan in which a plurality of blades are provided on a truncated cone-shaped hub, a main wing having two blades is provided, and a chord length on the outer peripheral side of the main wing is longer than a chord length on the hub side. constitute the leading edge of the wing at threaded旋曲rays anteversion in the rotational direction with respect to the radial direction, provided Ru auxiliary blade name of two whole wings number between wing, ailerons periphery The chord length is longer than the hub chord length, the leading edge of the auxiliary wing is a radial straight line, the radial length of the auxiliary wing is shorter than the radial length of the main wing, and the blade height on the outer peripheral side of the auxiliary wing Provides a blower impeller for air conditioning configured higher than the blade height of the main wing of the same circumference.

上記構成によって、主翼の枚数が２枚であるので、主に空力性能に寄与する翼面積の投入量が適正であるので、流体摩擦が少なく、ファン効率が非常に高い。また、主翼の前縁を半径方向に対して回転方向に前傾した螺旋曲線にすることで、螺旋曲線の頂点を起点として、主翼の翼端渦が発生するので、翼端渦の発生の状況を規定する作用を有する。そのため、補助翼の半径方向長さが主翼の半径方向長さより短いので、主翼から発生する翼端渦に補助翼が、干渉することなしに、前縁の螺旋曲線の頂点が翼端渦をコントロールできるものであり、羽根車としての騒音も充分に低くできる。また、主翼の間に設けられた補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高いので、補助翼は充分に空力仕事に寄与するので、回転騒音Ｎｚ音のレベルが乱流騒音のレベルより充分に低く、聴感も良好であり、斜流ファンであることは遠心力場による圧力上昇があるので、プロペラファンより高静圧化を達成する事ができる。 With the above configuration, since the number of main wings is two, the input amount of the wing area mainly contributing to aerodynamic performance is appropriate, so that there is little fluid friction and fan efficiency is very high. Moreover, by the screw旋曲lines the leading edge tilted forward in the rotational direction with respect to the radial direction of the main wing, starting from the apex of the spiral curve, since tip vortices of the main wing is generated, generation of tip vortex It has the effect | action which prescribes | regulates the situation. Therefore, since the radial length of the auxiliary wing is shorter than the radial length of the main wing, the tip of the spiral curve of the leading edge controls the tip vortex without the auxiliary wing interfering with the tip vortex generated from the main wing. The noise as an impeller can be sufficiently reduced. Also, since the outer blade height of the auxiliary wing provided between the main wings is higher than the blade height of the main wing of the same circumferential portion, the auxiliary wing sufficiently contributes to aerodynamic work, so the level of rotational noise Nz sound is Since it is sufficiently lower than the level of turbulent noise and has good audibility, and a mixed flow fan has a pressure increase due to the centrifugal force field, it can achieve higher static pressure than a propeller fan.

第２の発明は、円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、主翼の外周側弦長がハブ側弦長より長く、主翼の前縁を半径方向の直線とし、主翼の間に翼枚数が全体として２枚からなる補助翼を設け、補助翼は外周側弦長がハブ側弦長より長く、補助翼の前縁を半径方向に対して回転方向に前傾させた直線で構成し、補助翼の半径方向長さが主翼の半径方向長さより短く、且つ、補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高く構成した空調用送風機羽根車を提供するものである。 According to a second aspect of the present invention, in a mixed flow fan in which a plurality of blades are provided on a truncated cone-shaped hub, a main wing having two blades is provided, and the outer chord length of the main wing is longer than the hub chord length. the leading edge of the wing to the radial straight line, the Ru auxiliary blade name of two whole wings number between the wing provided, ailerons outer peripheral side chord length is longer than the hub-side chord length of the aileron It consists of a straight line with the leading edge tilted forward in the rotational direction with respect to the radial direction, the radial length of the auxiliary wing is shorter than the radial length of the main wing, and the outer wing height of the auxiliary wing is the same circumference The air-conditioning fan impeller configured higher than the blade height of the main wing of the section is provided.

上記構成によって、主翼の枚数が２枚であるので、主に空力性能に寄与する翼面積の投入量が適正であるので、流体摩擦が少なく、ファン効率が非常に高い。また、補助翼の前縁を半径方向に対して回転方向に前傾させた直線にしていることで、補助翼が斜めに空気を切るので、補助翼の前縁が空気を切る時間のタイミングがずれるので、補助翼の空力仕
事による騒音が小さくなり、羽根車全体として、更に、低騒音化を図れるものである。また、主翼の間に設けられた補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高いので、補助翼は充分に空力仕事に寄与するので、回転騒音Ｎｚ音のレベルを充分に低減できて、聴感も良好であり、斜流ファンなのでプロペラファンより高静圧化を達成することができる。 With the above configuration, since the number of main wings is two, the input amount of the wing area mainly contributing to aerodynamic performance is appropriate, so that fluid friction is small and fan efficiency is very high. In addition, since the front edge of the auxiliary wing is a straight line inclined forward in the rotational direction with respect to the radial direction , the auxiliary wing cuts air diagonally, so the timing of the time when the front edge of the auxiliary wing cuts air is As a result, the noise caused by the aerodynamic work of the auxiliary blades is reduced, and the noise of the impeller as a whole can be further reduced. In addition, since the blade height on the outer peripheral side of the auxiliary wing provided between the main wings is higher than the blade height of the main wing on the same circumferential portion, the auxiliary wing sufficiently contributes to aerodynamic work, so the level of rotational noise Nz sound is reduced. It can be sufficiently reduced, has good audibility, and is a mixed flow fan, so it can achieve higher static pressure than a propeller fan.

第３の発明は、円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、主翼の外周側弦長がハブ側弦長より長く、主翼の前縁を半径方向の直線とし、主翼の間に翼枚数が全体として２枚からなる補助翼を設け、補助翼は外周側弦長がハブ側弦長より長く、補助翼の前縁を半径方向に対して回転方向に前傾させた螺旋曲線にて構成し、補助翼の半径方向長さが主翼の半径方向長さより短く、且つ、補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高く構成した空調用送風機羽根車を提供するものである。 According to a third aspect of the present invention, in a mixed flow fan in which a plurality of blades are provided on a truncated cone-shaped hub, a main wing having two blades is provided, and the outer chord length of the main wing is longer than the hub chord length. the leading edge of the wing to the radial straight line, the Ru auxiliary blade name of two whole wings number between the wing provided, ailerons outer peripheral side chord length is longer than the hub-side chord length of the aileron It consists of a spiral curve with the leading edge tilted forward in the rotational direction with respect to the radial direction, the radial length of the auxiliary wing is shorter than the radial length of the main wing, and the outer wing height of the auxiliary wing is the same. An air-conditioning fan impeller configured to be higher than the blade height of the main wing in the circumferential portion is provided.

そうして、この構成によって、補助翼の前縁を回転方向に前傾させた螺旋曲線にしているので、補助翼が斜めに空気を切るので、補助翼の前縁が空気を切る時間のタイミングがずれるので、補助翼の空力仕事による騒音が小さくなり、羽根車全体として、更に、低騒音化を図れるものである。また、主翼の間に設けられた補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高いので、補助翼は充分に空力仕事に寄与するので回転騒音Ｎｚ音のレベルを充分に低減できて、聴感も良好であり、斜流ファンなので遠心力場に夜圧力上昇があるので、プロペラファンより高静圧化を達成することができる。   By this configuration, since the leading edge of the auxiliary wing has a spiral curve in which the leading edge of the auxiliary wing is tilted forward in the rotation direction, the auxiliary wing cuts air diagonally, so the timing of the time when the leading edge of the auxiliary wing cuts air Therefore, the noise due to the aerodynamic work of the auxiliary blades is reduced, and the noise of the impeller as a whole can be further reduced. In addition, since the blade height on the outer peripheral side of the auxiliary wing provided between the main wings is higher than the blade height of the main wing on the same circumferential portion, the auxiliary wing sufficiently contributes to aerodynamic work, so that the level of rotational noise Nz sound is sufficient. Since it is a mixed flow fan and there is an increase in night pressure in the centrifugal force field, higher static pressure can be achieved than a propeller fan.

（参考例１）
本発明に関する第１の参考例における空調用送風機羽根車を、図１〜図３を用いて説明する。 ( Reference Example 1)
The air blower impeller in the 1st reference example regarding this invention is demonstrated using FIGS. 1-3.

図１は、本発明に関する第１の参考例における空調用送風機羽根車の平面図。図２は、本発明に関する第１の参考例における空調用送風機羽根車の子午面図。図３は、本発明に関する第１の参考例における空調用送風機羽根車の動作状況を示した模式図である。 FIG. 1 is a plan view of a blower impeller for air conditioning in a first reference example relating to the present invention. FIG. 2 is a meridional view of an air-conditioning fan impeller in a first reference example related to the present invention. FIG. 3 is a schematic diagram showing an operation state of the air-conditioning fan impeller in the first reference example relating to the present invention.

図１に於いて、略円錐台状のハブ４に、複数枚の翼２を設けてなる斜流１において、翼枚数が２枚からなる主翼２を設け、主翼の外周側弦長がハブ側弦長より長く、主翼２の外周側前縁に３角形の一辺を合わせる形で３角状の翼１０をつけて、翼の半径を同一とし、主翼２の間に翼枚数が全体として２枚からなる略扇状の補助翼３を設けている。前縁５から空気が流入し、後縁６から流出する。７がチップ部である。また、図２において、補助翼３の半径方向長さＬ２が主翼の半径方向長さＬ１より短く、且つ、補助翼の羽根高さＨ２が同円周部の主翼の羽根高さＨ１より高く構成した空調用送風機羽根車を提供するものである。また、図１のように、翼端渦Ｄは、主翼２の外周側前縁に設けられた３角状の翼１０から、発生して主翼２上を移動して、主翼２の途中から剥離する。 In FIG. 1, in a mixed flow 1 in which a plurality of blades 2 are provided on a substantially frustoconical hub 4, a main wing 2 having two blades is provided, and a chord length on the outer peripheral side of the main wing is on the hub side. Longer than the chord length, the triangular blade 10 is attached so that one side of the triangle is aligned with the outer edge of the main wing 2, the wing radius is the same, and the number of blades between the main wings 2 is two as a whole. A substantially fan-shaped auxiliary wing 3 is provided. Air flows in from the leading edge 5 and flows out from the trailing edge 6. Reference numeral 7 denotes a chip portion. Further, in FIG. 2, the radial length L 2 of the aileron 3 is shorter than the radial length L 1 of the main wing, and, the blade height H of the blade height H 2 of the aileron wing of the same circumference An air conditioner blower impeller configured higher than 1 is provided. Further, as shown in FIG. 1, the blade tip vortex D is generated from a triangular blade 10 provided on the outer peripheral side front edge of the main wing 2, moves on the main wing 2, and peels off from the middle of the main wing 2. To do.

以上のように構成された空調用送風機羽根車について、以下その動作、作用を説明する。この羽根車１を、図３のように適当なケーシング９に収め、モータ８により回転させる事で空力仕事をさせるものである。図１の主翼２の枚数が２枚であるので、主に空力性能に寄与する翼面積の投入量が適正であるので、流体摩擦が少なく、ファン効率が高い。また、２枚の主翼２のみでは、羽根車１の回転騒音が乱流騒音より非常に高く、とても耳障りである。図２の主翼２の間に設けられた補助翼３の外周側羽根高さＨ２が同円周部の主翼の羽根高さＨ１より高いので、補助翼３は充分に空力仕事に寄与する。そこで、翼枚数ｚと回転数Ｎｒｐｍとすると、全体として、翼枚数は４枚と言え、それぞれ、充分に空力仕事をするので、空力仕事が分散させるので、翼１枚当たりの翼面上の圧力変動のレベルが小さくなり、回転騒音Ｎｚ音のレベルは、乱流騒音のレベルより低く、聴感も良好である。主翼２の外周側前縁に３角形の一辺を合わせる形で３角状の翼１０をつけて、翼の半径を同一とすることで、３角状の翼１０の頂点を起点として、翼端渦が発生する。この３角状の翼１０は、翼端渦の発生の状況を規定する作用を有する。補助翼３の半径方向長さＬ２が主翼の半径方向長さＬ１より短いので、主翼２から発生する翼端渦に補助翼３が、干渉することがなく、羽根車１としての騒音も低くできる。更に、斜流ファンであるので遠心力場による圧力上昇があるので、プロペラファンより高静圧を達成する事が出来る。 The operation and action of the air-conditioning fan impeller configured as described above will be described below. The impeller 1 is housed in a suitable casing 9 as shown in FIG. 3 and rotated by a motor 8 to perform aerodynamic work. Since the number of the main wings 2 in FIG. 1 is two, the input amount of the wing area mainly contributing to the aerodynamic performance is appropriate, so that the fluid friction is small and the fan efficiency is high. Further, with only two main wings 2, the rotational noise of the impeller 1 is much higher than the turbulent noise, which is very disturbing. Since the outer peripheral side blade height H 2 of the aileron 3 provided between the main wing 2 of Figure 2 is higher than the blade height H 1 of the main wing of the same circumference, aileron 3 sufficiently contributes to aerodynamic work . Therefore, if the number of blades z and the number of revolutions Nrpm are considered, the number of blades as a whole can be said to be four, and each of them performs aerodynamic work sufficiently, so the aerodynamic work is dispersed, so the pressure on the blade surface per blade The level of fluctuation is reduced, the level of the rotational noise Nz sound is lower than the level of turbulent noise, and the audibility is good. A triangular blade 10 is attached to the front edge of the outer periphery of the main wing 2 so that one side of the triangle is aligned, and the wing radius is the same, so that the tip of the triangular blade 10 is used as a starting point. A vortex is generated. The triangular blade 10 has an action of defining the state of generation of the blade tip vortex. Since the radial length L 2 of the aileron 3 is smaller than the radial length L 1 of the main wing, wing tip vortex to aileron 3 generated from the main wing 2, without interference, even noise as the impeller 1 Can be lowered. Furthermore, since it is a mixed flow fan, there is a pressure increase due to the centrifugal force field, so that a higher static pressure can be achieved than a propeller fan.

（実施の形態１）
本発明の第１の実施の形態における空調用送風機羽根車を、図４と図５を用いて説明する。 (Embodiment 1 )
The air blower impeller in the 1st Embodiment of this invention is demonstrated using FIG. 4 and FIG.

図４は、本発明の第１の実施の形態における空調用送風機羽根車の平面図。図５は、本発明の第１の実施の形態における空調用送風機羽根車の子午面図である。 FIG. 4 is a plan view of the air-conditioning blower impeller according to the first embodiment of the present invention. FIG. 5 is a meridional view of the air-conditioning fan impeller according to the first embodiment of the present invention.

図４，５に於いて、円錐台状のハブ４に翼枚数が２枚からなる主翼２を設け、主翼２の外周側弦長がハブ側弦長より長く、主翼２の前縁１１を半径方向に対して回転方向に前傾した螺旋曲線にて構成し、主翼２の間に翼枚数が全体として２枚からなる補助翼３を設け、補助翼３は外周側弦長がハブ側弦長より長く、補助翼３の前縁を半径方向の直線とし、補助翼３の半径方向長さＬ２が主翼の半径方向長さＬ１より短く、且つ、補助翼の外周側羽根高さＨ２が同円周部の主翼の羽根高さＨ１より高く構成した空調用送風機羽根車を提供するものである。 4 and 5 , the main wing 2 having two blades is provided on the truncated cone-shaped hub 4, the outer wing chord length of the main wing 2 is longer than the hub chord length, and the leading edge 11 of the main wing 2 has a radius. constituted by threaded旋曲rays anteversion in the rotational direction with respect to the direction, the Ru auxiliary wing 3 Na of two whole wings number between the wing 2 is provided, aileron 3 is the outer circumferential side chord length longer than the hub-side chord length, a leading edge of the aileron 3 a radius direction of the straight line, radial length L 2 of the aileron 3 is shorter than the radial length L 1 of the main wing, and defines an outer circumferential blade aileron the height H 2 is intended to provide an air conditioning blower impeller higher construction than the blade height H 1 of the main wing of the circumference.

以上のように構成された空調用送風機羽根車の動作、作用を説明する。主翼２の前縁１１を半径方向に対して回転方向に前傾した螺旋曲線にすることで、螺旋曲線の頂点を起点として、主翼２の翼端渦が発生するので、翼端渦の発生の状況を規定する作用を有する。そのため、補助翼３の半径方向長さＬ２が主翼の半径方向長さＬ１より短いので、主翼２から発生する翼端渦に補助翼３が、干渉することなしに、前縁１１の螺旋曲線の頂点が翼端渦をコントロールできるものであり、羽根車１としての騒音も充分に低くできる。また、主翼２の間に設けられた補助翼３の外周側羽根高さＨ２が同円周部の主翼２の羽根高さＨ１より高いので、補助翼３は充分に空力仕事に寄与するので回転騒音Ｎｚ音のレベルを充分に低減できる。斜流ファン１なので、遠心力場による圧力上昇があり、プロペラファンより高静圧にできる。 The operation and action of the air-conditioning fan impeller configured as described above will be described. By threadably旋曲rays anteversion in the rotational direction of the front edge 11 of the main wing 2 to the radial direction, starting from the apex of the spiral curve, since tip vortices of the main wing 2 occurs, the blade tip vortex Has the effect of defining the situation of occurrence. Therefore, since the radial length L 2 of the auxiliary wing 3 is shorter than the radial direction length L 1 of the main wing 3, the auxiliary wing 3 does not interfere with the blade tip vortex generated from the main wing 2, and the spiral of the leading edge 11 is prevented. The apex of the curve can control the blade tip vortex, and the noise as the impeller 1 can be sufficiently reduced. Further, since the outer peripheral side blade height H 2 of the aileron 3 provided between the main wing 2 is higher than the blade height H 1 of the main wing 2 of the same circumference, aileron 3 sufficiently contributes to aerodynamic work Therefore, the level of the rotational noise Nz sound can be sufficiently reduced. Since it is a mixed flow fan 1, there exists a pressure rise by a centrifugal force field and it can be made a higher static pressure than a propeller fan.

（実施の形態２）
本発明の第２の実施の形態における空調用送風機羽根車を、図６と図７を用いて説明する。 (Embodiment 2 )
An air conditioner blower impeller according to a second embodiment of the present invention will be described with reference to FIGS. 6 and 7.

図６は、本発明の第２の実施の形態における空調用送風機羽根車の平面図。図７は、本発明の第２の実施の形態における空調用送風機羽根車の子午面図である。 FIG. 6 is a plan view of a blower impeller for air conditioning according to the second embodiment of the present invention. FIG. 7 is a meridional view of an air-conditioning blower impeller in the second embodiment of the present invention.

図６，７において、円錐台状のハブに翼枚数が２枚からなる主翼２を設け、主翼２の外周側弦長がハブ側弦長より長く、主翼２の前縁５を半径方向の直線とし、主翼２の間に翼枚数が全体として２枚からなる補助翼３を設け、補助翼３は外周側弦長がハブ側弦長より長く、補助翼３の前縁１２を半径方向に対して回転方向に前傾させた直線で構成し、補助翼３の半径方向長さＬ２が前記主翼の半径方向長さＬ１より短く、且つ、補助翼の外周側羽根高さＨ２が同円周部の主翼の羽根高さＨ１より高く構成した空調用送風機羽根車を提供するものである。 6 and 7 , a main wing 2 having two blades is provided on a truncated cone-shaped hub, the outer chord length of the main wing 2 is longer than the hub chord length, and the leading edge 5 of the main wing 2 is aligned with a straight line in the radial direction. and then, the Ru auxiliary wing 3 Na of two whole wings number between the wing 2 is provided, aileron 3 the outer peripheral side chord length is longer than the hub-side chord length, radial leading edge 12 of the aileron 3 constituted by straight line tilted forward in the rotational direction with respect to the radial length L 2 of the aileron 3 is shorter than the radial length L 1 of the main wing, and defines an outer circumferential blade height aileron H 2 There is to provide an air conditioning blower impeller constructed higher than the blade height H 1 of the main wing of the circumference.

以上のように構成された空調用送風機羽根車の動作、作用を説明する。補助翼３の前縁１２を半径方向に対して回転方向にα度前傾させた直線にしていることで、補助翼３が斜めに空気を切るので、補助翼３の前縁１２が空気を切る時間のタイミングがずれるので、補助翼３の空力仕事による騒音が小さくなり、羽根車１全体として、更に、低騒音化を図れるものである。また、主翼２の間に設けられた補助翼３の外周側羽根高さＨ２が同円周部の主翼２の羽根高さＨ１より高いので、補助翼３は充分に空力仕事に寄与するので回転騒音Ｎｚ音のレベルを充分に低減でき、聴感も良好である。更に、斜流ファン１なので、遠心力場による圧力上昇があり、プロペラファンより高静圧である。 The operation and action of the air-conditioning fan impeller configured as described above will be described . By making the front edge 12 of the auxiliary wing 3 a straight line inclined forward by α degrees in the rotational direction with respect to the radial direction , the auxiliary wing 3 cuts air diagonally, so the front edge 12 of the auxiliary wing 3 draws air. Since the timing of cutting is shifted, noise due to aerodynamic work of the auxiliary wing 3 is reduced, and the impeller 1 as a whole can further reduce noise. Further, since the outer peripheral side blade height H 2 of the aileron 3 provided between the main wing 2 is higher than the blade height H 1 of the main wing 2 of the same circumference, aileron 3 sufficiently contributes to aerodynamic work Therefore, the level of the rotational noise Nz sound can be sufficiently reduced, and the audibility is also good. Furthermore, since it is a mixed flow fan 1, there exists a pressure rise by a centrifugal force field, and a static pressure is higher than a propeller fan.

（実施の形態３）
本発明の第３の実施の形態における空調用送風機羽根車を、図８と図９を用いて説明する。 (Embodiment 3 )
An air conditioner blower impeller according to a third embodiment of the present invention will be described with reference to FIGS. 8 and 9.

図８は、本発明の第３の実施の形態における空調用送風機羽根車の平面図。図９は、本発明の第３の実施の形態における空調用送風機羽根車の子午面図である。 FIG. 8 is a plan view of a blower impeller for air conditioning according to the third embodiment of the present invention. FIG. 9 is a meridional view of an air-conditioning fan impeller according to the third embodiment of the present invention.

図８，９において、円錐台状のハブに翼枚数が２枚からなる主翼２を設け、主翼２の外
周側弦長がハブ側弦長より長く、主翼２の前縁５を半径方向の直線とし、主翼２の間に翼枚数が全体として２枚からなる補助翼３を設け、補助翼３は外周側弦長がハブ側弦長より長く、補助翼３の前縁１３を半径方向に対して回転方向に前傾させた螺旋曲線にて構成し、補助翼３の半径方向長さＬ２が主翼の半径方向長さＬ１より短く、且つ、補助翼の外周側羽根高さＨ２が同円周部の主翼の羽根高さＨ１より高く構成した空調用送風機羽根車を提供するものである。 8 and 9 , a main wing 2 having two blades is provided on a truncated cone-shaped hub, the outer chord length of the main wing 2 is longer than the hub chord length, and the leading edge 5 of the main wing 2 is straight in the radial direction. and then, the Ru auxiliary wing 3 Na of two whole wings number between the wing 2 is provided, aileron 3 the outer peripheral side chord length is longer than the hub-side chord length, a leading edge 13 of the auxiliary blades 3 radially constituted by helical curve tilted forward in the rotational direction with respect to the radial length L 2 of the aileron 3 is shorter than the radial length L 1 of the main wing, and defines an outer circumferential blade height H of the aileron 2 is intended to provide a high structure with air conditioning blower impeller than the blade height H 1 of the main wing of the circumference.

以上のように構成されて空調用送風機羽根車の動作、作用を説明する。補助翼３の前縁１３を回転方向に前傾させた螺旋曲線にしているので、補助翼３が斜めに空気を切るので、補助翼３の前縁１３が空気を切る時間のタイミングがずれるので、補助翼３の空力仕事による騒音が小さくなり、羽根車全体として、更に、低騒音化を図れるものである。また、主翼２の間に設けられた補助翼３の外周側羽根高さＨ２が同円周部の主翼２の羽根高さＨ１より高いので、補助翼３は充分に空力仕事に寄与するので回転騒音Ｎｚ音のレベルを充分に低減できる。更に、斜流ファン１であるので、遠心力場による圧力上昇によって、プロペラファンより高静圧化を図れる。 The operation and action of the air-conditioning fan impeller configured as described above will be described. Since the leading edge 13 of the auxiliary wing 3 has a spiral curve that is inclined forward in the rotation direction, the auxiliary wing 3 cuts air diagonally, and therefore the timing of the time when the leading edge 13 of the auxiliary wing 3 cuts air is shifted. The noise due to the aerodynamic work of the auxiliary wing 3 is reduced, and the noise can be further reduced as the entire impeller. Further, since the outer peripheral side blade height H 2 of the aileron 3 provided between the main wing 2 is higher than the blade height H 1 of the main wing 2 of the same circumference, aileron 3 sufficiently contributes to aerodynamic work Therefore, the level of the rotational noise Nz sound can be sufficiently reduced. Furthermore, since the mixed flow fan 1 is used, a higher static pressure than that of the propeller fan can be achieved by a pressure increase due to the centrifugal force field.

以上のように、本発明にかかる空調用送風機羽根車は、主翼の枚数が２枚であるので、主に空力性能に寄与する翼面積の投入量が適正であるので、流体摩擦が少なく、ファン効率が高い。また、２枚の主翼のみでは、羽根車の回転騒音が乱流騒音より非常に高く、とても耳障りである。主翼の間に設けられた補助翼の外周側羽根高さが同円周部の主翼の羽根高さより高いので、補助翼は充分に空力仕事に寄与する。そこで、翼枚数ｚと回転数Ｎｒｐｍとすると、全体として、翼枚数は４枚と言え、それぞれ、充分に空力仕事をするので、空力仕事が分散させるので、翼１枚当たりの翼面上の圧力変動のレベルが小さくなり、回転騒音Ｎｚ音のレベルは、乱流騒音のレベルより低く、聴感も良好である。主翼の外周側前縁に３角形の一辺を合わせる形で３角状の翼をつけて、翼の半径を同一とすることで、３角状の翼の頂点を起点として、翼端渦が発生する。この３角状の翼は、翼端渦の発生の状況を規定する作用を有する。補助翼の半径方向長さが主翼の半径方向長さより短いので、主翼から発生する翼端渦に補助翼が、干渉することがなく、羽根車としての騒音も低くできる。更に、斜流ファンであるので遠心力場による圧力上昇があるので、プロペラファンより高静圧を達成する事が出来る。   As described above, the air-conditioning fan impeller according to the present invention has two main wings, and therefore the amount of blade area that mainly contributes to aerodynamic performance is appropriate. High efficiency. Also, with only two main wings, the impeller rotational noise is much higher than turbulent noise, which is very disturbing. Since the blade height on the outer peripheral side of the auxiliary wing provided between the main wings is higher than the blade height of the main wing on the same circumferential portion, the auxiliary wing sufficiently contributes to aerodynamic work. Therefore, if the number of blades z and the number of revolutions Nrpm are considered, the number of blades as a whole can be said to be four, and each of them performs aerodynamic work sufficiently, so the aerodynamic work is dispersed, so the pressure on the blade surface per blade The level of fluctuation is reduced, the level of the rotational noise Nz sound is lower than the level of turbulent noise, and the audibility is good. By attaching a triangular wing so that one side of the triangle is aligned with the outer front edge of the main wing, and making the wing radius the same, a tip vortex is generated starting from the apex of the triangular wing. To do. This triangular wing has an action of defining the state of generation of the tip vortex. Since the radial length of the auxiliary wing is shorter than the radial length of the main wing, the auxiliary wing does not interfere with the tip vortex generated from the main wing, and noise as an impeller can be reduced. Furthermore, since it is a mixed flow fan, there is a pressure increase due to the centrifugal force field, so that a higher static pressure can be achieved than a propeller fan.

以上によって、セパレート型ルームエアコン室外機の熱交換促進用の送風機などに利用できるし、また、換気扇や扇風機にも展開が可能である。   As described above, it can be used as a blower for promoting heat exchange of a separate room air conditioner outdoor unit, and can also be applied to a ventilation fan or a fan.

本発明に関する第１の参考例における空調用送風機羽根車の平面図The top view of the air blower impeller in the 1st reference example regarding this invention 本発明に関する第１の参考例における空調用送風機羽根車の子午面図The meridional view of the air-conditioning fan impeller in the first reference example of the present invention 本発明に関する第１の参考例における空調用送風機羽根車の動作状況を示した模式図The schematic diagram which showed the operation condition of the air blower impeller in the 1st reference example regarding this invention 本発明の実施の形態１における空調用送風機羽根車の平面図The top view of the air blower impeller in Embodiment 1 of this invention 本発明の実施の形態１における空調用送風機羽根車の子午面図Meridional view of air-conditioning fan impeller in Embodiment 1 of the present invention 本発明の実施の形態２における空調用送風機羽根車の平面図The top view of the air blower impeller in Embodiment 2 of this invention 本発明の実施の形態２における空調用送風機羽根車の子午面図Meridional view of air-conditioning fan impeller in Embodiment 2 of the present invention 本発明の実施の形態３における空調用送風機羽根車の平面図The top view of the air blower impeller in Embodiment 3 of this invention 本発明の実施の形態３における空調用送風機羽根車の子午面図Meridional view of air-conditioning fan impeller in Embodiment 3 of the present invention 従来の空調用送風機羽根車を示す模式図Schematic diagram showing a conventional air-conditioning blower impeller

符号の説明Explanation of symbols

１ 空調用送風機羽根車
２ 主翼
３ 補助翼
４ ハブ
５ 前縁
６ 後縁
７ チップ部
８ モータ
９ オリフィス
１０ ３角状の翼
１１ 前縁
１２ 補助翼の前縁
１３ 補助翼の前縁 DESCRIPTION OF SYMBOLS 1 Air-conditioning fan impeller 2 Main wing 3 Auxiliary wing 4 Hub 5 Front edge 6 Rear edge 7 Tip part 8 Motor 9 Orifice 10 Triangular blade 11 Front edge 12 Front edge of auxiliary wing 13 Front edge of auxiliary wing

Claims (3)

円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、前記主翼の外周側弦長がハブ側弦長より長く、前記主翼の前縁を半径方向に対して回転方向に前傾した螺旋曲線にて構成し、前記主翼の間に翼枚数が全体として２枚からなる補助翼を設け、前記補助翼は外周側弦長がハブ側弦長より長く、前記補助翼の前縁を半径方向の直線とし、前記補助翼の半径方向長さが前記主翼の半径方向長さより短く、且つ、前記補助翼の外周側の羽根高さが同円周部の前記主翼の羽根高さより高く構成した空調用送風機羽根車。 In a mixed flow fan in which a plurality of blades are provided on a truncated cone-shaped hub, a main wing having two blades is provided, and the chord length on the outer peripheral side of the main wing is longer than the chord length on the hub side. configure the edges at threaded旋曲rays anteversion in the rotational direction with respect to the radial direction, provided Ru auxiliary blade name of two whole wings number between the main wing, the ailerons outer peripheral side chord The length of the auxiliary wing is longer than the hub side chord length, the leading edge of the auxiliary wing is a straight line in the radial direction, the radial length of the auxiliary wing is shorter than the radial length of the main wing, and the blade on the outer peripheral side of the auxiliary wing air-conditioning blower impeller height is constructed higher than the blade height of the main wing of the circumference. 円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、前記主翼の外周側弦長がハブ側弦長より長く、前記主翼の前縁を半径方向の直線とし、前記主翼の間に翼枚数が全体として２枚からなる補助翼を設け、前記補助翼は外周側弦長がハブ側弦長より長く、前記補助翼の前縁を半径方向に対して回転方向に前傾させた直線で構成し、前記補助翼の半径方向長さが前記主翼の半径方向長さより短く、且つ、前記補助翼の外周側羽根高さが同円周部の前記主翼の羽根高さより高く構成した空調用送風機羽根車。 The frustoconical hub, the mixed flow fan comprising a plurality of blades, a main wing blade number is composed of two provided, the outer peripheral side chord length of the wing is longer than the hub-side chord length before the main wing An edge is a straight line in the radial direction, and an auxiliary wing having two blades as a whole is provided between the main wings. The auxiliary wing has an outer chord length longer than a hub chord length, and the leading edge of the auxiliary wing is It consists of a straight line inclined forward in the rotational direction with respect to the radial direction, the radial length of the auxiliary wing is shorter than the radial length of the main wing, and the outer blade height of the auxiliary wing is the same circumference air-conditioning blower impeller higher construction than the blade height of the wing parts. 円錐台状のハブに、複数枚の翼を設けてなる斜流ファンにおいて、翼枚数が２枚からなる主翼を設け、前記主翼の外周側弦長がハブ側弦長より長く、前記主翼の前縁を半径方向の直線とし、前記主翼の間に翼枚数が全体として２枚からなる補助翼を設け、前記補助翼は外周側弦長がハブ側弦長より長く、前記補助翼の前縁を半径方向に対して回転方向に前傾させた螺旋曲線にて構成し、前記補助翼の半径方向長さが前記主翼の半径方向長さより短く、且つ、前記補助翼の外周側羽根高さが同円周部の前記主翼の羽根高さより高く構成した空調用送風機羽根車。 The frustoconical hub, the mixed flow fan comprising a plurality of blades, a main wing blade number is composed of two provided, the outer peripheral side chord length of the wing is longer than the hub-side chord length before the main wing the edges a radius direction of a straight line, the Ru auxiliary blade name of two whole wings number between the main wing provided, said ailerons outer peripheral side chord length is longer than the hub-side chord length, prior to said aileron The edge is composed of a spiral curve inclined forward in the rotational direction with respect to the radial direction, the radial length of the auxiliary wing is shorter than the radial length of the main wing, and the outer blade height of the auxiliary wing air-conditioning blower impeller but constructed higher than the blade height of the main wing of the circumference.
JP2004261052A 2004-09-08 2004-09-08 Blower impeller for air conditioning Expired - Fee Related JP4572633B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108506246A (en) * 2018-05-04 2018-09-07 广东美的制冷设备有限公司 Axial-flow windwheel, air-conditioner outdoor unit and air conditioner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0623042D0 (en) * 2006-11-18 2006-12-27 Weir Pumps Ltd Mechanical assembly
CN103032377A (en) * 2011-10-09 2013-04-10 珠海格力电器股份有限公司 Axial flow fan blade
EP3783229A4 (en) * 2018-05-04 2021-06-16 GD Midea Air-Conditioning Equipment Co., Ltd. Axial flow wind wheel, air conditioner outdoor unit and air conditioner

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5381410U (en) * 1976-12-08 1978-07-06
JPH02252999A (en) * 1989-03-28 1990-10-11 Toshiba Corp Fan for air conditioner
JPH10205330A (en) * 1997-01-21 1998-08-04 Nissan Motor Co Ltd Cooling fan
JP2000303996A (en) * 1999-04-26 2000-10-31 Daikin Ind Ltd Impeller for air blower
JP2001003896A (en) * 1999-06-18 2001-01-09 Beishin Kogyo Kk Impeller
JP2001090693A (en) * 1999-09-24 2001-04-03 Matsushita Electric Ind Co Ltd Blower impeller and air conditioner
JP2003093138A (en) * 2001-09-25 2003-04-02 Matsushita Electric Works Ltd Hair dryer
JP2004003447A (en) * 2002-04-19 2004-01-08 Matsushita Electric Ind Co Ltd Impeller of fan for air-conditioner
JP2005054717A (en) * 2003-08-06 2005-03-03 Matsushita Electric Ind Co Ltd Blower impeller

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0639957B2 (en) * 1987-09-07 1994-05-25 松下電器産業株式会社 Axial blower

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5381410U (en) * 1976-12-08 1978-07-06
JPH02252999A (en) * 1989-03-28 1990-10-11 Toshiba Corp Fan for air conditioner
JPH10205330A (en) * 1997-01-21 1998-08-04 Nissan Motor Co Ltd Cooling fan
JP2000303996A (en) * 1999-04-26 2000-10-31 Daikin Ind Ltd Impeller for air blower
JP2001003896A (en) * 1999-06-18 2001-01-09 Beishin Kogyo Kk Impeller
JP2001090693A (en) * 1999-09-24 2001-04-03 Matsushita Electric Ind Co Ltd Blower impeller and air conditioner
JP2003093138A (en) * 2001-09-25 2003-04-02 Matsushita Electric Works Ltd Hair dryer
JP2004003447A (en) * 2002-04-19 2004-01-08 Matsushita Electric Ind Co Ltd Impeller of fan for air-conditioner
JP2005054717A (en) * 2003-08-06 2005-03-03 Matsushita Electric Ind Co Ltd Blower impeller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108506246A (en) * 2018-05-04 2018-09-07 广东美的制冷设备有限公司 Axial-flow windwheel, air-conditioner outdoor unit and air conditioner

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