CN104165160B - Fan blade and there is its fan - Google Patents
Fan blade and there is its fan Download PDFInfo
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- CN104165160B CN104165160B CN201310182333.6A CN201310182333A CN104165160B CN 104165160 B CN104165160 B CN 104165160B CN 201310182333 A CN201310182333 A CN 201310182333A CN 104165160 B CN104165160 B CN 104165160B
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Abstract
The invention discloses a kind of fan blade and there is its fan, including: wheel hub and multiple blade, multiple blades are located on the periphery wall of wheel hub, wherein, the upper surface of each blade and/or lower surface and the first intersection, the face of cylinder are curve, at least the two of curve/mono-section is configured to inverted parabolic curve, wherein the central axis on first face of cylinder and the central axes of wheel hub, and the wind that inverted parabolic curve is configured to blow out from fan blade when multiple blades rotate can converge to the near focal point of inverted parabolic curve., when blade high-speed rotation, there is convergent point from the wind of fan blade blowout so that fan blade has Wind Volume, big wind speed and high performance advantage in fan blade according to embodiments of the present invention.
Description
Technical field
The present invention relates to living electric apparatus field, especially relate to a kind of fan blade and there is its fan.
Background technology
Fan blade performance study and performance boost are the developing direction of fan blade, market proposes the highest requirement for the performance indications of fan, air quantity, wind speed, efficiency, noise are four important indicators therein, and the quality of fan blade design is to determine the key factor that these four important indicators reach quality.
Summary of the invention
It is contemplated that at least solve one of technical problem present in prior art.
To this end, it is an object of the present invention to propose a kind of there is Wind Volume, wind speed and the fan blade of high energy efficiency advantage.
Further object is that a kind of fan with above-mentioned fan blade of proposition.
Fan blade according to embodiments of the present invention, including: wheel hub；Multiple blades, the plurality of blade is located on the periphery wall of described wheel hub, wherein, the upper surface of each described blade and/or lower surface and the first intersection, the face of cylinder are curve, 1/2 section of described curve is configured to inverted parabolic curve, the central axis on wherein said first face of cylinder and the central axes of described wheel hub, the wind that described inverted parabolic curve is configured to blow out from described fan blade when the plurality of blade rotates can converge to the near focal point of described inverted parabolic curve.
Fan blade according to embodiments of the present invention, 1/2 section of the curve intersected due to the upper surface of each blade and/or lower surface and first face of cylinder is inverted parabolic curve, thus when blade high-speed rotation, convergent point is there is so that fan blade has Wind Volume, big wind speed and high performance advantage from the wind of fan blade blowout.
It addition, according to the fan blade of the present invention also there is following additional technical feature:
According to some embodiments of the present invention, the cylindrical coordinates parameter (r, θ, Z) of each point in the part being configured to inverted parabolic curve of described curve meets following equation: r=RX；Wherein, r is cylindrical coordinates radius, and θ is angle, and z is height, RXFor the distance between described first face of cylinder and described central axis, a, b, c are predetermined value.
According to other embodiments of the present invention, (x, y z) meet following equation: x=Sx to the rectangular coordinate parameter of each point in the part being configured to inverted parabolic curve of described curve；Wherein, Sx is the distance between described first face of cylinder and described central axis, and d, e, f are predetermined value.
Preferably, described hub-shaped becomes cylindrical.Consequently facilitating the machine-shaping of wheel hub and the cosmetic look of increase fan blade.
In some examples of the present invention, described blade and described wheel hub are working of plastics.
In other examples of the present invention, described blade and described wheel hub are metalwork.
Further, described blade is integral with described hub welding.
Alternatively, described blade is three or five and is uniformly distributed in the circumference of described wheel hub.
In some embodiments of the invention, the upper surface of each described blade and/or the curve of lower surface and any first intersection, the face of cylinder are inverted parabolic curve.
Fan according to embodiments of the present invention, including fan blade according to the above embodiment of the present invention.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will be apparent from easy to understand, wherein from combining the accompanying drawings below description to embodiment:
Fig. 1 is the front view of the fan blade according to the embodiment of the present invention；
Fig. 2 is the rearview of the fan blade shown in Fig. 1；
Fig. 3 is the top view of the fan blade shown in Fig. 1；
Fig. 4 is the side view of the fan blade shown in Fig. 1；
Fig. 5 is the axonometric chart of the fan blade shown in Fig. 1；
Fig. 6 is the schematic diagram that blade and multiple first faces of cylinder of the fan blade according to one embodiment of the invention intersect to form a plurality of curve；
Fig. 7 is the schematic diagram that blade and multiple first faces of cylinder of the fan blade according to another embodiment of the present invention intersect to form a plurality of curve.
Reference:
Fan blade 100, wheel hub 1, blade 2
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
Additionally, in describing the invention, except as otherwise noted, " multiple " are meant that two or more.
Describing a kind of fan blade 100 according to embodiments of the present invention below with reference to Fig. 1-Fig. 6, this fan blade 100 may be used on the electrical equipment such as fan, air-conditioning or blower fan.What deserves to be explained is, it is well known that parabola has following feature, i.e. collimated light beam and can converge in focus after parabolic reflective, and in like manner, inverted parabolic curve is the most as characterized above, i.e. collimated light beam also can converge in focus after the reflection of inverted parabolic curve.In the description of this specification, the performance of blade 2 refers to air quantity when blade 2 rotates, wind speed, efficiency and noise four indices.
Fan blade 100 according to embodiments of the present invention, as shown in figs 1 to 6, including: wheel hub 1 and multiple blade 2, preferably, wheel hub 1 is formed as cylindrical, and multiple blades 2 are located on the periphery wall of wheel hub 1, in some examples of the present invention, as shown in figures 1 to 6, blade 2 is three and is uniformly distributed in the circumference of wheel hub 1.In other examples of the present invention, as it is shown in fig. 7, blade 2 can be also five and be uniformly distributed in the circumference of wheel hub 1.Wherein, the upper surface of each blade 2 and/or lower surface and the first intersection, the face of cylinder are curve, at least the two of curve/mono-section is configured to inverted parabolic curve, in other words, upper surface and first intersection, the face of cylinder of each blade 2 are the first curve, lower surface and first intersection, the face of cylinder of each blade 2 are the second curve, 1/1 at least two section in first curve and the second curve is configured to inverted parabolic curve, that is, can be that 1/2 section of the only first curve is configured to inverted parabolic curve, 1/2 section that may also be the only second curve is configured to inverted parabolic curve, can also is that 1/2 section of the first curve and 1/2 section of the second curve is all configured to inverted parabolic curve.The wherein central axis on first face of cylinder and the central axes of wheel hub 1, the wind that inverted parabolic curve is configured to blow out from fan blade 100 when multiple blades 2 rotate can converge to the near focal point of inverted parabolic curve.Wherein, being worth being understood by, this first face of cylinder can be the face of cylinder of any one and wheel hub 1 common center axis.
Specifically, the curved surface that the upper surface of each blade 2 and/or lower surface are formed can be generated by a plurality of curve different from the distance of the central axis of wheel hub 1, and at least the two of every curve/mono-is configured to inverted parabolic curve, thus when blade 2 high-speed rotation, convergent point is there is by the wind of every inverted parabolic curve blowout on blade 2, the position converged is just near the focal position of every inverted parabolic curve, owing to the focal position of a plurality of inverted parabolic curve exists some differences, therefore the convergent point of the wind of fan blade 100 is between the focus of a plurality of inverted parabolic curve, and then can be by the parameter of curve in the position adjustment inverted parabolic curve of the convergent point of detection wind.
That is, the shape of this curve can be adjusted to form difform blade 2 by adjusting the parameter of curve being configured to inverted parabolic curve part on every curve, simultaneously can be by being analyzed by simulation software, to select the curve more excellent so that blade 2 performance from various parameters, with the blade 2 that the curve of these excellent performances generates, just there is Wind Volume, dynamical effect, in addition, curved surface is generated by curve, and curved surface leaves certain border surplus, can conveniently design the outward appearance of blade 2, convenient effectively.Meanwhile, the blade 2 of this motor of coupling can be designed by adjusting parameter of curve, to improve the efficiency of fan blade 100 according to the feature of different motors.
Fan blade 100 according to embodiments of the present invention, 1/2 section of the curve intersected due to the upper surface of each blade 2 and/or lower surface and first face of cylinder is inverted parabolic curve, thus when blade 2 high-speed rotation, convergent point is there is so that fan blade 100 has Wind Volume, big wind speed and high performance advantage from the wind of fan blade 100 blowout.
In some examples of the present invention, the curve of the upper surface of each blade 2 and/or lower surface and any first intersection, the face of cylinder is inverted parabolic curve.It is to say, whole piece curve is all configured as inverted parabolic curve.Thus when fan blade 100 can be made to rotate, the air quantity of blowout is maximum, wind speed is the fastest and the best performance that has.
Alternatively, wheel hub 1 and multiple blade 2 can be working of plastics and can pass through injection moulding integrated molding, certainly the invention is not restricted to this, and wheel hub 1 and multiple blade 2 can be also metalwork, and can be by integrally welded.In the example of the present invention, wheel hub 1 is formed as the cylinder of hollow and rear open, can be provided with a plurality of reinforcement to improve the structural strength of wheel hub 1 in this cylinder.
In some embodiments of the invention, the cylindrical coordinates parameter (r, θ, Z) of each point in the part being configured to inverted parabolic curve of curve meets following equation:
r=RX；
Wherein, r is cylindrical coordinates radius, and θ is angle, and z is height, RXBeing the distance between first face of cylinder and central axis, a, b, c are predetermined value.Specifically, can first use modeling software and determine that a center of circle is to draw out a circular arc line, first to determine the approximate range of r value and θ, it is then determined that a θ value and according to the position of the convergent point of wind and constantly adjust a by simulation analysis software and experiment, b, the value of c, to select so that blade 2 has the experiment value a of optimal performance, b, c, finally draw the optimum z value corresponding with this θ value, thus the θ value determined according to this and z value adjust the shape of this circular arc line, so repeat to obtain an inverted parabolic curve making blade 2 have optimal performance, so repeat the inverted parabolic curve that said process is different to draw a plurality of focus, a curved surface is drawn out finally according to this plurality of inverted parabolic curve, this curved surface can be upper surface and/or the lower surface of blade 2.
According to other embodiments of the present invention, the rectangular coordinate parameter of each point in the part being configured to inverted parabolic curve of curve (x, y, z) meet following equation:
x=Sx；
Wherein, Sx is the distance between first face of cylinder and central axis, and d, e, f are predetermined value.Now, modeling software can be first passed through and determine that a center of circle is with one circular arc line of remittance abroad, first to determine the approximate range of x value and y, it is then determined that a y value and according to the position of the convergent point of wind and by simulation analysis software and experiment constantly to adjust d, e, the value of f, to select so that blade 2 has the experiment value d of optimal performance, e, f, finally obtain the optimum z value corresponding with this y value, thus the y value determined according to this and z value adjust the shape of this circular arc line, so repeat to obtain an inverted parabolic curve making blade 2 have optimal performance, so repeat the inverted parabolic curve that said process is different to obtain a plurality of focus, a curved surface is drawn out finally according to this plurality of inverted parabolic curve, this curved surface can be upper surface and/or the lower surface of blade 2.
The application in the fan blade of the present invention of inverted parabolic curve curve is described below as a example by a specific embodiment.
Illustrate as a example by taking two first faces of cylinder below, make X=Rx/R0, respectively X1=1.181, X2=1.889, wherein RXIt it is the distance between first face of cylinder and central axis.
In first position, the face of cylinder of R1, R2, parameterized inverted parabolic curve curvilinear equation constitute Curve of wing.
Its Curve of wing has following feature
r=RΧ
Its parameter is as follows:
In X1 cross section
Meet parametric equation:
Equation (1) is the derivative of cylindrical coordinates inverted parabolic curve equation,
Representing by the parameter of reduced form, equation (1) can be write as the canonical form of equation (2):
... ... ... ... .. equation (2)
In X2 cross section
So repeat, can by choose different X value, a, b, c value thus form different Curve of wings.
Fan blade 100 according to embodiments of the present invention, by suitable parameter designing (a, b, or (d c), e, and three-dimensional modeling f), the shape of the blade 2 of excellent performance can be obtained, through test and comparison, find that the blade 2 of this shape is compared with traditional blade, air quantity energy valid value has bigger lifting, find according to test data, the blade 2 of the present invention can coordinate low cost motor to use, even if this motor belt motor loading capability is the strongest, the blade 2 of the present invention also can give play to higher performance, the air quantity performance efficiency of test when coordinating 14 folded thick motors to use, the most traditional blade uses the test performance of 16 folded thick motors.
Test data
The most very little 3 blade testing data, coordinate same desk fan product (14 folded thick motor) test
Product A is the fan blade with 3 blades using the above-mentioned specific embodiment of the present invention to provide, and product B and products C are the existing fan blade with 3 blades.Coordinate same motor, and under same experimental conditions, the air quantity of fan blade, efficiency that the embodiment of the present invention provides are far above tradition fan blade.Airflow value promotes more than 10%, valid value can promote more than 14%.The most very little 5 blade testing data, coordinate same desk fan product (16 folded thick motor) test
The fan blade with 5 blades that product 1 provides for the embodiment of the present invention, product 2 is the existing fan blade with 5 blades, coordinates same motor, and the air quantity of the fan blade that the embodiment of the present invention provides, energy valid value be above other fan blade existing.
Fan according to embodiments of the present invention, including fan blade according to the above embodiment of the present invention, wherein, other of fan according to embodiments of the present invention constitute such as control panel etc. and operation is the most all known, are not detailed herein.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: these embodiments can carry out in the case of without departing from the principle of the present invention and objective multiple change, revise, replace and modification, the scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a fan blade, it is characterised in that including:
Wheel hub；
Multiple blades, the plurality of blade is located on the periphery wall of described wheel hub, wherein, the upper surface of each described blade and/or lower surface and the first intersection, the face of cylinder are curve, 1/2 section of described curve is configured to inverted parabolic curve, the central axis on wherein said first face of cylinder and the central axes of described wheel hub, the wind that described inverted parabolic curve is configured to blow out from described fan blade when the plurality of blade rotates can converge to the near focal point of described inverted parabolic curve, and described first face of cylinder is the face of cylinder of any one and described wheel hub common center axis.
Fan blade the most according to claim 1, it is characterised in that the cylindrical coordinates parameter of each point in the part being configured to inverted parabolic curve of described curve (r, θ, z) meet following equation:
R=RX；
Wherein, r is cylindrical coordinates radius, and θ is angle, and z is height, RXFor the distance between described first face of cylinder and described central axis, a, b, c are predetermined value.
Fan blade the most according to claim 1, it is characterised in that the rectangular coordinate parameter of each point in the part being configured to inverted parabolic curve of described curve (x, y, z) meet following equation:
X=Sx；
Wherein, Sx is the distance between described first face of cylinder and described central axis, and d, e, f are predetermined value.
Fan blade the most according to claim 1, it is characterised in that described hub-shaped becomes cylindrical.
Fan blade the most according to claim 1, it is characterised in that described blade and described wheel hub are working of plastics.
Fan blade the most according to claim 1, it is characterised in that described blade and described wheel hub are metalwork.
Fan blade the most according to claim 6, it is characterised in that described blade is integral with described hub welding.
Fan blade the most according to claim 1, it is characterised in that described blade is three or five and is uniformly distributed in the circumference of described wheel hub.
9. according to the fan blade according to any one of claim 1-8, it is characterised in that the curve of the upper surface of each described blade and/or lower surface and any first intersection, the face of cylinder is inverted parabolic curve.
10. a fan, it is characterised in that include according to the fan blade according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182333.6A CN104165160B (en) | 2013-05-16 | 2013-05-16 | Fan blade and there is its fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310182333.6A CN104165160B (en) | 2013-05-16 | 2013-05-16 | Fan blade and there is its fan |
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| CN104165160A CN104165160A (en) | 2014-11-26 |
| CN104165160B true CN104165160B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310182333.6A Active CN104165160B (en) | 2013-05-16 | 2013-05-16 | Fan blade and there is its fan |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020071259A (en) * | 2001-03-05 | 2002-09-12 | 김동진 | a combined electric fan and heater |
| CN102022380A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN102979764A (en) * | 2012-11-23 | 2013-03-20 | 杭州顿力电器有限公司 | Axial flow fan blade and fan |
-
2013
- 2013-05-16 CN CN201310182333.6A patent/CN104165160B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020071259A (en) * | 2001-03-05 | 2002-09-12 | 김동진 | a combined electric fan and heater |
| CN102022380A (en) * | 2011-01-01 | 2011-04-20 | 杭州顿力电器有限公司 | Bionic axial-flow fan |
| CN102979764A (en) * | 2012-11-23 | 2013-03-20 | 杭州顿力电器有限公司 | Axial flow fan blade and fan |
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| Publication number | Publication date |
|---|---|
| CN104165160A (en) | 2014-11-26 |
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