CN102213235A - Blade of air-condition axial fan and air-condition axial fan - Google Patents
Blade of air-condition axial fan and air-condition axial fan Download PDFInfo
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- CN102213235A CN102213235A CN201110081788XA CN201110081788A CN102213235A CN 102213235 A CN102213235 A CN 102213235A CN 201110081788X A CN201110081788X A CN 201110081788XA CN 201110081788 A CN201110081788 A CN 201110081788A CN 102213235 A CN102213235 A CN 102213235A
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Abstract
The invention discloses a blade of an air-condition axial fan. When a blade is cut from a cylindrical surface which is coaxial with the axis of the fan and determined based on the conditions that H%=0.7 and R=38.18, the blade has the characteristical section meeting the following conditions: alpha1=0 degrees, alpha2=178 degrees, beta=33.2 degrees, b=84.7, P1x=48.919, P1y=15.919, P1z=-10.865, P2x=26.459, P2y=-44.119, and P2z=20.478; and when the blade is cut from a cylindrical surface determined based on the conditions that H%=0.3, r=38.18, H%=0.19 and r=38.18, the parameter values changes correspondingly, and the unit which is not labeled is mm. The invention also provides an air-condition axial fan, and all blades are the blades provided by the invention. The air-condition axial fan with the blades provided by the invention can achieve the purposes of the optimal air quantity and noise reduction within a rated working condition range through the optimal parameter matching.
Description
Technical field
The axial flow fan for air conditioner that the present invention relates to a kind of blade of axial flow fan for air conditioner and have this blade.
Background technique
In the design process of axial flow fan for air conditioner, the design of blade angle directly influences the aeroperformance of blade, therefore air quantity of fan is produced material impact.And blade radial bending angle and sweepforward bending angle not only influence air quantity, and aerodynamic noise is also had material impact.In the fan design process, often be difficult at present reach the parameter matching of the best, cause old aerofoil profile fan to have deficiency in draught, the higher problem of noise.Along with computer technology and computation fluid dynamics (Computational Fluid Dynamics, abbreviation CFD) development, with and to have a cycle short, cost is low, can effectively analyze advantages such as various influence factors and quantification flow field parameter, make it become a kind of brand-new means in turbomachine research and the design research and development field, can accomplish just can estimate its aeroperformance and acoustic characteristic comparatively exactly in the fan design stage, for the parameter optimization and the structural design of fan provides foundation, and can reduce the expense and the workload of test, shorten the R﹠D cycle, improve economic benefit of enterprises.
Summary of the invention
At the problem that exists in the correlation technique, the axial flow fan for air conditioner that the object of the present invention is to provide a kind of blade of axial flow fan for air conditioner and have this blade is to solve in the prior art because unreasonable aerofoil profile air quantity of fan deficiency, the higher problem of noise of causing of Blade Design.
For achieving the above object, on the one hand, the invention provides a kind of blade of axial flow fan for air conditioner, coincide by a plurality of characteristic cross-sections and to form, the profile molded lines of characteristic cross-section is the closed curve that is surrounded by inner arc curve and back of the body arc curve, with H%=0.7, when first cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, blade had the characteristic cross-section that satisfies following parameter condition: α
1=0 °, α
2=178 °, β=33.2 °, b=84.7mm, P
1x=48.919mm, P
1y=15.919mm, P
1z=-10.865mm, P
2x=26.459mm, P
2y=-44.119mm, P
2z=20.478mm; With H%=0.3, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, blade had the characteristic cross-section that satisfies following parameter condition: α
1=29 °, α
2=144 °, β=28.4 °, b=177.9mm, P
1x=71.443mm, P
1y=102.571mm, P
1z=-46.663mm, P
2x=115.616mm, P
2y=-47.518mm, P
2z=37.948mm; With H%=0.19, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, blade had the characteristic cross-section that satisfies following parameter condition: α
1=55 °, α
2=134 °, β=24.9 °, b=272.3mm, P
1x=57.071mm, P
1y=184.243mm, P
1z=-85.508mm, P
2x=199.547mm, P
2y=-19.016mm, P
2z=28.289mm; Relevant parameter is defined as follows:
The ratio of H%-r and R;
The wheel hub inscribed cylinder radius surface of r-fan;
The radius of the different cylndrical surface that R-and described wheel hub incircle cylinder are concentric is R;
L
1-be the line of arcuate midway point of the leaf cross-section that different cylndrical surface intercepted of R with the concentric radius of described wheel hub incircle cylinder;
L
2The line of rotary middle point when the blade root mid-chord of-blade and fan work;
L
3The line of rotary middle point when-described arcuate midway point and described fan work;
α
1-L
2With L
3Between angle;
L
4The intersection point place, cylndrical surface that the leading edge of-fan is corresponding with R is along the tangent line of described leading edge curve;
L
5-pass through L
4The line of point of contact P and described rotary middle point;
α
2-L
4With L
5Between angle;
β-with the datum plane of the axis normal of fan with by with the concentric radius in wheel hub cylndrical surface be the angle of the string of a musical instrument of the leaf cross-section that different cylndrical surface intercepted of R, be called blade angle;
P
1, P
2-referring to that radius is the intersection point that different cylndrical surface of R and blade pressure surface intersect molded lines upper blade trailing edge and leading edge, coordinates table is shown P
1(P
1x, P
1y, P
1z), P
2(P
2x, P
2y, P
2z);
The b-radius is the cylndrical surface of R and the line of blade inlet edge and trailing edge intersection point, is called the aerofoil profile chord length;
Xy plane, z axle-with the blade root side motor axis hole central point of blade are initial point, being the xy plane through described initial point and perpendicular to the plane of fan axis, with initial point and described first cylndrical surface and trailing edge line intersection point line is x axle postive direction, being the z axle direction perpendicular to described xy plane from the direction that described pressure side points to suction surface.
Preferably, with H%=0.6, during r=38.18mm cylndrical surface intercepting that determine and the fan axis coaxle blade, blade has the characteristic cross-section that satisfies following parameter condition: α
1=6 °, α
2=172 °, β=32.6 °, b=111.6mm, P
1x=53.557mm, P
1y=36.832mm, P
1z=-22.523mm, P
2x=30.425mm, P
2y=-57.439mm, P
2z=32.593mm; With H%=0.27, during r=38.18mm cylndrical surface intercepting that determine and the fan axis coaxle blade, blade has the characteristic cross-section that satisfies following parameter condition: α
1=34 °, α
2=142 °, β=27.5 °, b=199.4mm, P
1x=69.824mm, P
1y=121.345mm, P
1z=-54.265mm, P
2x=132.953mm, P
2y=-43.859mm, P
2z=37.935mm.
Preferably, with H%=0.5, during r=38.18mm cylndrical surface intercepting that determine and the fan axis coaxle blade, blade has the characteristic cross-section that satisfies following parameter condition: α
1=13 °, α
2=152 °, β=31.1 °, b=130.9mm, P
1x=61.880mm, P
1y=50.703mm, P
1z=-28.457mm, P
2x=51.763mm, P
2y=-60.997mm, P
2z=39.219mm; With H%=0.25, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, blade had the characteristic cross-section that satisfies following parameter condition: α
1=39 °, α
2=136 °, β=26.7 °, b=223.5mm, P
1x=65.325mm, P
1y=140.562mm, P
1z=-62.941mm, P
2x=149.661mm, P
2y=-40.330mm, P
2z=37.618mm.
Preferably, with H%=0.4, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, blade had the characteristic cross-section that satisfies following parameter condition: α
1=19 °, α
2=150 °, β=30.5 °, b=142.9mm, P
1x=67.242mm, P
1y=67.108mm, P
1z=-34.190mm, P
2x=76.975mm, P
2y=-55.677mm, P
2z=38.305mm; With H%=0.22, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, blade had the characteristic cross-section that satisfies following parameter condition: α
1=44 °, α
2=132 °, β=26.1 °, b=249.7mm, P
1x=58.171mm, P
1y=159.738mm, P
1z=-72.537mm, P
2x=165.948mm, P
2y=-36.897mm, P
2z=37.289mm.
Preferably, with H%=0.35, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, blade had the characteristic cross-section that satisfies following parameter condition: α
1=24 °, α
2=147 °, β=29.4 °, the time, b=158.9mm, P
1x=70.498mm, P
1y=84.439mm, P
1z=-40.077mm, P
2x=97.257mm, P
2y=-51.391mm, P
2z=38.015mm; With H%=0.20, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, blade had the characteristic cross-section that satisfies following parameter condition: α
1=49 °, α
2=137 °, β=25.6 °, b=275.4mm, P
1x=49.684mm, P
1y=177.165mm, P
1z=-82.016mm, P
2x=180.880mm, P
2y=-33.739mm, P
2z=36.888mm.
Preferably, be continuous smooth transition between adjacent per two characteristic cross-sections.
Preferably, the error of H% is in ± 1; α
1, α
2, the error of β is in ± 1 °; State r, b, P
1x, P
1y, P
1z, P
2x, P
2y, P
2zError in ± 1mm.
Preferably, blade is made by Shooting Technique, and material is a Reinforced Polypropylene.
On the other hand, the present invention also provides a kind of axial flow fan for air conditioner, and all blades of fan are blade of the present invention.
Than prior art, beneficial effect of the present invention is: by the parameter matching of the best, make the axial flow fan for air conditioner with blade of the present invention reach the purpose of the air quantity and the reduction noise of the best in the declared working condition scope.
Description of drawings
Fig. 1 is the plan view with fan of blade of the present invention, shows some structural parameter in order to definition blade characteristics cross section;
Fig. 2 is the left view of Fig. 1, shows in order to limit the parameter beta in leaf characteristic cross section;
Fig. 3 is another view with fan of blade of the present invention, shows 11 characteristic cross-sections of one of them blade, also clearly show that parameter b, β;
Fig. 4 is the enlarged diagram of a blade among Fig. 1, shows the characteristic cross-section and the aerofoil profile chord length thereof of pressure side, suction surface, leading edge, trailing edge and blade;
Fig. 5 is the front view of characteristic cross-section among Fig. 4, shows two some P that are used to limit characteristic cross-section
1, P
2The position;
Fig. 6 is the blade schematic representation of overlooking from leaf top that is coincided and formed by the different characteristic cross section;
Fig. 7 is the blade schematic representation of overlooking from blade root that is coincided and formed by the different characteristic cross section;
Fig. 8 is the pressure-plotting of a characteristic cross-section of blade of the present invention;
Fig. 9 is the pressure-plotting in another feature cross section of blade of the present invention;
Embodiment
Shown in Fig. 1-7, the blade of axial flow fan for air conditioner of the present invention is described, it is the obform body that is coincided and formed by a plurality of characteristic cross-sections, the profile molded lines of characteristic cross-section (for example shown in Figure 5) is the closed curve that is surrounded by pressure side curve and suction surface curve.The blade characteristics cross section is limited by parameter shown in the subordinate list 1, and subordinate list 1 shows 11 characteristic cross-sections and relevant parameter thereof.
Subordinate list 1: the blade characteristics cross section, and determine the relevant parameter of this characteristic cross-section
Be defined as follows in conjunction with the relevant parameter in Fig. 1-5 pair subordinate list 1:
The ratio of H%-r and R;
The wheel hub inscribed cylinder radius surface of r-fan, as shown in Figure 1; Although Fig. 1 illustrates fan hub and is shaped as triangle, fan hub also can be a circle etc.;
The radius of the different cylndrical surface that R-and described wheel hub incircle cylinder are concentric is R, as shown in Figure 1;
L
1-be the line of arcuate midway point of the leaf cross-section that different cylndrical surface intercepted of R with the concentric radius of described wheel hub incircle cylinder, as shown in Figure 1;
L
2The line of rotary middle point O when the blade root mid-chord Q of-blade and fan work, as shown in Figure 1;
L
3The line of rotary middle point when-described arcuate midway point and described fan work, as shown in Figure 1;
α
1-L
2With L
3Between angle, be called the blade radial bending angle, as shown in Figure 1;
L
4The intersection point place, cylndrical surface that the leading edge of-fan is corresponding with R is along the tangent line of described leading edge curve, as shown in Figure 1;
L
5-pass through L
4The line of point of contact P and described rotary middle point, as shown in Figure 1;
α
2-L
4With L
5Between angle, be called blade sweepforward bending angle, as shown in Figure 1;
β-with the datum plane of the axis normal of fan with by with the concentric radius in wheel hub cylndrical surface be the angle of the string of a musical instrument of the leaf cross-section that different cylndrical surface intercepted of R, be called blade angle, shown in Fig. 2,3;
P
1, P
2-referring to that radius is the intersection point that different cylndrical surface of R and blade pressure surface intersect molded lines upper blade trailing edge and leading edge, coordinates table is shown P
1(P
1x, P
1y, P
1z), P
2(P
2x, P
2y, P
2z), shown in Figure 4 and 5; In order to be illustrated more clearly in P
1, P
2, chord length b, vane trailing edge 17, leading edge 15, pressure side 19, the suction surface 13 of a characteristic cross-section have been shown among Fig. 4;
The b-radius is the cylndrical surface of R and the line of blade inlet edge and trailing edge intersection point, is called the aerofoil profile chord length, shown in Fig. 3,4;
Xy plane, z axle-with the blade root side motor axis hole central point of blade are initial point, being the xy plane through initial point and perpendicular to the plane of fan axis, with initial point and first cylndrical surface (following detailed description, promptly, the cylndrical surface at characteristic cross-section 1 place of subordinate list 1) and trailing edge line intersection point line be x axle postive direction, being the z axle direction from the direction that pressure side points to suction surface perpendicular to described xy plane; In Fig. 1, the x axle direction be level to the right, the y axle direction be vertically upward, the z axle direction is perpendicular to paper and points to reader (x, y, z not shown).
To be numbered 1 characteristic cross-section is example, subordinate list 1 further is explained as follows: with H%=0.7, during r=38.18mm cylndrical surface (that is, the first above-mentioned cylndrical surface) intercepting that determine and the fan axis coaxle blade, blade has the characteristic cross-section that satisfies following parameter condition: α
1=0 °, α
2=178 °, β=33.2 °, b=84.7mm, P
1x=48.919mm, P
1y=15.919mm, P
1z=-10.865mm, P
2x=26.459mm, P
2y=-44.119mm, P
2z=20.478mm can uniquely determine this characteristic cross-section according to above-mentioned these parameters.The parameter of the characteristic cross-section of other numbering similarly repeats no more.
It may be noted that shown in the subordinate list 1 only to be the value that choosing is arranged most, in fact, each parameter value allows error, and the error of H% is in ± 1 in the present invention; α
1, α
2, the error of β is in ± 1 °; R, b, P
1x, P
1y, P
1z, P
2x, P
2y, P
2zError is in ± 1mm.
In addition, although can determine 11 characteristic cross-sections of blade according to the parameter of subordinate list 1,, just can obtain blade of the present invention according to characteristic cross-section 1, characteristic cross-section 6, characteristic cross-section 11; For to further optimizing by blade, can increase characteristic cross-section 2, characteristic cross-section 7 altogether 5 characteristic cross-sections determine blade of the present invention; Be further optimization, can increase again characteristic cross-section 3, characteristic cross-section 8 altogether 7 characteristic cross-sections determine blade of the present invention; Can also continue to increase characteristic cross-section 4, characteristic cross-section 9 altogether 9 characteristic cross-sections determine blade of the present invention, with further optimization; Continue again, can increase again characteristic cross-section 5, characteristic cross-section 10 totally 11 characteristic cross-sections determine blade of the present invention.Except the blade characteristics cross section, part is continuous smooth transition between adjacent per two characteristic cross-sections of blade.
Fig. 8 is the pressure-plotting of characteristic cross-section 4 in the subordinate list 1, Fig. 9 is the pressure-plotting of characteristic cross-section 9 in the subordinate list 1, these two pressure-plottings are from obtaining by CFD numerical analysis technology, from these two pressure-plottings as can be seen, near the leaf characteristic cross section pressure law, the aerofoil profile fan after the visible optimal design has good aerodynamic characteristic.Further preferably, blade is that injection molding process forms, and material is for strengthening PP (polypropylene).
Should be appreciated that even r=38.18mm is the numerical value of obtaining, as long as the relevant parameter in features relevant according to the invention cross section, this blade also belongs to design of the present invention behind the blade bi-directional scaling.
On the other hand, the present invention also provides a kind of axial flow fan for air conditioner, and all blades of fan are blade of the present invention.
Below data relatively describe technique effect of the present invention in detail by experiment.
For axial flow fan for air conditioner, with the model be 35W400123 fan 1 (prior art), compare with fan 2 (fan), so that beneficial effect of the present invention to be described with blade of the present invention.The experiment of doing is to carry out under the constant situation of test voltage, the power of fan 1 and fan 2, comprises 5 groups of laboratory datas altogether:
(1) first group of laboratory data: fan 1 is elected the fan of above-mentioned model as, and fan 2 is the fans with three blades, and wherein, each blade is the blade of being determined by 11 characteristic cross-sections of subordinate list 1:
2: the first groups of laboratory data contrasts of subordinate list
(2) second groups of laboratory datas: fan 1 is elected the fan of above-mentioned model as, and fan 2 is the fans with three blades, and wherein, each blade is the blade of being determined by the characteristic cross-section 1 of subordinate list 1, characteristic cross-section 6, characteristic cross-section 11:
3: the second groups of laboratory data contrasts of subordinate list
(3) the 3rd groups of laboratory datas: fan 1 is elected the fan of above-mentioned model as, and fan 2 is the fans with three blades, and wherein, each blade is the blade of being determined by the characteristic cross-section 1 of subordinate list 1, characteristic cross-section 2, characteristic cross-section 6, characteristic cross-section 7, characteristic cross-section 11:
Subordinate list three groups of laboratory data contrasts in 4: the
(4) the 4th groups of laboratory datas: fan 1 is elected the fan of above-mentioned model as, fan 2 is the fans with three blades, wherein, each blade is the blade of being determined by characteristic cross-section 1, characteristic cross-section 2, characteristic cross-section 3, characteristic cross-section 6, characteristic cross-section 7, characteristic cross-section 8, the characteristic cross-section 11 of subordinate list 1:
Subordinate list four groups of laboratory data contrasts in 5: the
(5) the 5th groups of laboratory datas: fan 1 is elected the fan of above-mentioned model as, fan 2 is the fans with three blades, wherein, each blade is the blade of being determined by characteristic cross-section 1, characteristic cross-section 2, characteristic cross-section 3, characteristic cross-section 4, characteristic cross-section 6, characteristic cross-section 7, characteristic cross-section 8, characteristic cross-section 9, the characteristic cross-section 11 of subordinate list 1:
Subordinate list five groups of laboratory data contrasts in 6: the
According to above five groups of laboratory datas contrast, can draw that the axial flow fan for air conditioner air quantity with blade of the present invention is big, noise is low.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the blade of an axial flow fan for air conditioner, being coincided by a plurality of characteristic cross-sections forms, and the profile molded lines of described characteristic cross-section is the closed curve that is surrounded by inner arc curve and back of the body arc curve, it is characterized in that:
With H%=0.7, when first cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=0 °, α
2=178 °, β=33.2 °, b=84.7mm, P
1x=48.919mm, P
1y=15.919mm, P
1z=-10.865mm, P
2x=26.459mm, P
2y=-44.119mm, P
2z=20.478mm;
With H%=0.3, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=29 °, α
2=144 °, β=28.4 °, b=177.9mm, P
1x=71.443mm, P
1y=102.571mm, P
1z=-46.663mm, P
2x=115.616mm, P
2y=-47.518mm, P
2z=37.948mm;
With H%=0.19, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=55 °, α
2=134 °, β=24.9 °, b=272.3mm, P
1x=57.071mm, P
1y=184.243mm, P
1z=-85.508mm, P
2x=199.547mm, P
2y=-19.016mm, P
2z=28.289mm;
Relevant parameter is defined as follows:
The ratio of H%-r and R;
The wheel hub inscribed cylinder radius surface of r-fan;
The radius of the different cylndrical surface that R-and described wheel hub incircle cylinder are concentric is R;
L
1-be the line of arcuate midway point of the leaf cross-section that different cylndrical surface intercepted of R with the concentric radius of described wheel hub incircle cylinder;
L
2The line of rotary middle point (O) when the blade root mid-chord (Q) of-blade and fan work;
L
3The line of rotary middle point when-described arcuate midway point and described fan work;
α
1-L
2With L
3Between angle;
L
4The intersection point place, cylndrical surface that the leading edge of-fan is corresponding with R is along the tangent line of described leading edge curve;
L
5-pass through L
4The line of point of contact P and described rotary middle point;
α
2-L
4With L
5Between angle;
β-with the datum plane of the axis normal of fan with by with the concentric radius in wheel hub cylndrical surface be the angle of the string of a musical instrument of the leaf cross-section that different cylndrical surface intercepted of R, be called blade angle;
P
1, P
2-referring to that radius is the crossing molded lines upper blade trailing edge of pressure side of different cylndrical surface of R and blade and the intersection point of leading edge, coordinates table is shown P
1(P
1x, P
1y, P
1z), P
2(P
2x, P
2y, P
2z);
The b-radius is the cylndrical surface of R and the line of blade inlet edge and trailing edge intersection point, is called the aerofoil profile chord length;
Xy plane, z axle-with the blade root side motor axis hole central point of blade are initial point, being the xy plane through described initial point and perpendicular to the plane of fan axis, with initial point and described first cylndrical surface and trailing edge line intersection point line is x axle postive direction, being the z axle direction perpendicular to described xy plane from the direction that described pressure side points to suction surface.
2. the blade of axial flow fan for air conditioner according to claim 1 is characterized in that,
With H%=0.6, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=6 °, α
2=172 °, β=32.6 °, b=111.6mm, P
1x=53.557mm, P
1y=36.832mm, P
1z=-22.523mm, P
2x=30.425mm, P
2y=-57.439mm, P
2z=32.593mm;
With H%=0.27, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=34 °, α
2=142 °, β=27.5 °, b=199.4mm, P
1x=69.824mm, P
1y=121.345mm, P
1z=-54.265mm, P
2x=132.953mm, P
2y=-43.859mm, P
2z=37.935mm.
3. the blade of axial flow fan for air conditioner according to claim 2 is characterized in that,
With H%=0.5, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=13 °, α
2=152 °, β=31.1 °, b=130.9mm, P
1x=61.880mm, P
1y=50.703mm, P
1z=-28.457mm, P
2x=51.763mm, P
2y=-60.997mm, P
2z=39.219mm;
With H%=0.25, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=39 °, α
2=136 °, β=26.7 °, b=223.5mm, P
1x=65.325mm, P
1y=140.562mm, P
1z=-62.941mm, P
2x=149.661mm, P
2y=-40.330mm, P
2z=37.618mm.
4. the blade of axial flow fan for air conditioner according to claim 3 is characterized in that,
With H%=0.4, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=19 °, α
2=150 °, β=30.5 °, b=142.9mm, P
1x=67.242mm, P
1y=67.108mm, P
1z=-34.190mm, P
2x=76.975mm, P
2y=-55.677mm, P
2z=38.305mm;
With H%=0.22, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=44 °, α
2=132 °, β=26.1 °, b=249.7mm, P
1x=58.171mm, P
1y=159.738mm, P
1z=-72.537mm, P
2x=165.948mm, P
2y=-36.897mm, P
2z=37.289mm.
5. the blade of axial flow fan for air conditioner according to claim 4 is characterized in that,
With H%=0.35, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=24 °, α
2=147 °, β=29.4 °, the time, b=158.9mm, P
1x=70.498mm, P
1y=84.439mm, P
1z=-40.077mm, P
2x=97.257mm, P
2y=-51.391mm, P
2z=38.015mm;
With H%=0.20, when the cylndrical surface with the fan axis coaxle that r=38.18mm determines intercepted described blade, described blade had the characteristic cross-section that satisfies following parameter condition: α
1=49 °, α
2=137 °, β=25.6 °, b=275.4mm, P
1x=49.684mm, P
1y=177.165mm, P
1z=-82.016mm, P
2x=180.880mm, P
2y=-33.739mm, P
2z=36.888mm.
6. according to the blade of each described axial flow fan for air conditioner among the claim 1-5, it is characterized in that, is continuous smooth transition between adjacent per two characteristic cross-sections.
7. according to the blade of each described axial flow fan for air conditioner among the claim 1-5, it is characterized in that the error of described H% is in ± 1; Described α
1, α
2, the error of β is in ± 1 °; Described r, b, P
1x, P
1y, P
1z, P
2x, P
2y, P
2zError in ± 1mm.
8. according to the blade of each described axial flow fan for air conditioner among the claim 1-5, it is characterized in that described blade is made by Shooting Technique, material is a Reinforced Polypropylene.
9. according to the blade of claim 6 or 7 described axial flow fan for air conditioner, it is characterized in that described blade is made by Shooting Technique, material is a Reinforced Polypropylene.
10. an axial flow fan for air conditioner is characterized in that, all blades of described fan are the described blade of aforementioned arbitrary claim.
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| CN201110081788.XA CN102213235B (en) | 2011-04-01 | 2011-04-01 | The blade of axial flow fan for air conditioner, axial flow fan for air conditioner |
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| CN102720700A (en) * | 2012-06-21 | 2012-10-10 | 海尔集团公司 | Blade of axial flow fan and axial flow fan for air conditioner |
| CN103925234A (en) * | 2014-04-10 | 2014-07-16 | 江苏大学 | Wear-resistant axial flow pump impeller designing method |
| CN107970826A (en) * | 2017-11-27 | 2018-05-01 | 江苏大学 | A kind of agitating device |
| CN108268672A (en) * | 2016-12-30 | 2018-07-10 | 格朗吉斯铝业（上海）有限公司 | Aerofoil fan, design aerofoil fan three dimendional blade method and computer equipment |
| CN109505788A (en) * | 2018-12-25 | 2019-03-22 | 哈尔滨工业大学 | Reversible axial flow blower |
| CN111677693A (en) * | 2020-05-21 | 2020-09-18 | 同济大学 | High-pressure cooling fan for large-flow low-noise fuel cell automobile |
| EP3882470A4 (en) * | 2018-11-22 | 2022-02-23 | GD Midea Air-Conditioning Equipment Co., Ltd. | Axial-flow impeller and air-conditioner having the same |
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| CN102720700B (en) * | 2012-06-21 | 2015-11-25 | 海尔集团公司 | The blade of axial fan and axial flow fan for air conditioner |
| CN102720700A (en) * | 2012-06-21 | 2012-10-10 | 海尔集团公司 | Blade of axial flow fan and axial flow fan for air conditioner |
| CN103925234A (en) * | 2014-04-10 | 2014-07-16 | 江苏大学 | Wear-resistant axial flow pump impeller designing method |
| CN103925234B (en) * | 2014-04-10 | 2016-05-25 | 江苏大学 | A kind of wear-resistant axial-flow pump impeller method for designing |
| CN108268672B (en) * | 2016-12-30 | 2021-06-01 | 格朗吉斯铝业（上海）有限公司 | Axial fan, method for designing three-dimensional blade of axial fan and computer equipment |
| CN108268672A (en) * | 2016-12-30 | 2018-07-10 | 格朗吉斯铝业（上海）有限公司 | Aerofoil fan, design aerofoil fan three dimendional blade method and computer equipment |
| CN107970826A (en) * | 2017-11-27 | 2018-05-01 | 江苏大学 | A kind of agitating device |
| CN107970826B (en) * | 2017-11-27 | 2020-07-31 | 江苏大学 | Stirring device |
| US11680580B2 (en) | 2018-11-22 | 2023-06-20 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Axial-flow impeller and air-conditioner having the same |
| EP3882470A4 (en) * | 2018-11-22 | 2022-02-23 | GD Midea Air-Conditioning Equipment Co., Ltd. | Axial-flow impeller and air-conditioner having the same |
| CN109505788A (en) * | 2018-12-25 | 2019-03-22 | 哈尔滨工业大学 | Reversible axial flow blower |
| CN109505788B (en) * | 2018-12-25 | 2021-01-29 | 哈尔滨工业大学 | Reversible axial flow fan |
| CN111677693B (en) * | 2020-05-21 | 2021-10-08 | 同济大学 | High-pressure cooling fan for large-flow low-noise fuel cell automobile |
| CN111677693A (en) * | 2020-05-21 | 2020-09-18 | 同济大学 | High-pressure cooling fan for large-flow low-noise fuel cell automobile |
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