CN110118193A - Axial-flow windwheel and air conditioner - Google Patents
Axial-flow windwheel and air conditioner Download PDFInfo
- Publication number
- CN110118193A CN110118193A CN201810126925.9A CN201810126925A CN110118193A CN 110118193 A CN110118193 A CN 110118193A CN 201810126925 A CN201810126925 A CN 201810126925A CN 110118193 A CN110118193 A CN 110118193A
- Authority
- CN
- China
- Prior art keywords
- axial
- fan blade
- flow windwheel
- flow
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000694 effects Effects 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 108010021156 ARC 341 Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001652 frontal lobe Anatomy 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
-
- 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
-
- 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
- F04D29/388—Blades characterised by construction
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
- F04D29/544—Blade shapes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Wind Motors (AREA)
Abstract
The present invention discloses a kind of axial-flow windwheel and air conditioner, the axial-flow windwheel includes wheel hub and first group of fan blade and second group of fan blade on the wheel hub, first group of fan blade includes multiple long fan blades, second group of fan blade includes multiple short fan blades, and the multiple long fan blade and the multiple short fan blade interval are arranged；The axial-flow windwheel further includes wind collection that is coaxial with the wheel hub and being cylindrical in shape setting, and the barrel of the wind collection is sequentially connected in the middle part of the multiple long fan blade；First group of fan blade is respectively positioned on the inside of the wind collection, and the interval of the outer leaf margin of each short fan blade and the wind collection is arranged.Axial-flow windwheel of the invention can reduce the air quantity along the axial-flow windwheel Radial Flow, to increase the axial-feeding-air amount of the axial-flow windwheel.
Description
Technical field
The present invention relates to air conditioner technical field, in particular to a kind of axial-flow windwheel and air conditioner.
Background technique
Axial-flow windwheel, which is commonly used in household electrical appliance or air conditioner, serves as compound ventilation air-changing device use.Axial-flow windwheel work
When, drive the air in its circumferential direction to rotate to form air-flow, and the air-flow is driven to blow out along the axial direction of axial-flow windwheel.However, conventional
Axial-flow windwheel during the work time, fraction carries over the fan blade Radial Flow of axial-flow windwheel under operating on centrifugal force, thus
Cause the axial-flow windwheel radial direction wind loss larger, the air output of the axial-flow windwheel reduces, and easily leads to the energy consumption of the axial-flow windwheel
Increase.
Summary of the invention
The main object of the present invention is to propose a kind of axial-flow windwheel, it is intended to reduce the wind along the axial-flow windwheel Radial Flow
Amount, to increase the axial-feeding-air amount of the axial-flow windwheel.
To achieve the above object, the present invention proposes a kind of axial-flow windwheel and includes the air conditioner of the axial-flow windwheel, institute
State that axial-flow windwheel includes wheel hub and first group of fan blade and second group of fan blade on the wheel hub, first group of fan blade include
Multiple long fan blades, second group of fan blade include multiple short fan blades, and the multiple long fan blade is set with the multiple short fan blade interval
It sets；The axial-flow windwheel further includes wind collection that is coaxial with the wheel hub and being cylindrical in shape setting, and the barrel of the wind collection is successively
It connects in the middle part of the multiple long fan blade；First group of fan blade is respectively positioned on the inside of the wind collection, and each short fan blade
Outer leaf margin and the wind collection interval be arranged.
Preferably, wind collection setting straight；Alternatively, the air inlet of the wind collection from the axial-flow windwheel is lateral
Its air side is in gradually-reducing shape or the setting of flaring shape.
Preferably, the spacing between the outer leaf margin of the short fan blade and the inner wall of the wind collection, from the axis stream wind
Its lateral air side of the air inlet of wheel is gradually reduced.
Preferably, the radius of circumference where the outer leaf margin of the long fan blade is R1, the outer leaf margin of the short fan blade with it is described
Minimum spacing between the inner wall of wind collection is D, D ∈ (0,0.05R1]。
Preferably, the radius of the wheel hub is R0, the equivalent barrel dliameter of the wind collection is R2, the axial cylinder of the wind collection
Depth is H, H ∈ [(R2-R0), (R1-R2)]。
Preferably, each long fan blade includes leaf portion and the second siphonal lobe in second inside and outside the wind collection
Portion, the surface area of the long fan blade are S300, the surface area of leaf portion is S in described second310, S310/S300∈ [0.3,0.8].
Preferably, each long fan blade has the preceding leaf margin being located on front side of direction of rotation, and the preceding leaf margin is in concave arc shape
Setting so that the preceding leaf margin has the imploded arcs being formed in described second in leaf portion, and is formed in second siphonal lobe
Outer concave arc in portion.
Preferably, the arc length of the imploded arcs is L1, the arc length of the outer concave arc is L2, L1/L2∈ [0.2,1.0].
Preferably, each long fan blade has rear leaf margin being located on rear side of direction of rotation and in convex arc shaped setting, institute
Stating rear leaf margin has the interior convex arc being formed in described second in leaf portion, and the outside line being formed in the described second outer leaf portion
Section.
Preferably, the arc length of the interior convex arc is L3, the line segment length of the outer line segment is L4, L3/L4∈ [0.2,1.0].
Technical solution of the present invention, by the way that first group of fan blade and second group of wind are arranged on the wheel hub of the axial-flow windwheel
Leaf encloses flow rotation to drive using first group of fan blade in closer wheel hub, and this fraction is concentrated along the axis
Flow the central axial blowout of wind wheel；And second group of fan blade drives the peripheral air stream further away from wheel hub to rotate, and by this fraction collection
The axial blowout in the middle periphery along the axial-flow windwheel.So by this two groups of fan blades simultaneously cooperate rotation, can by air flow collection along institute
It states the axial of axial-flow windwheel and considerably increases the draft capacity of the axial-flow windwheel to outdoor blowout, and then increase the axis stream wind
The air output of wheel.
Furthermore axial-flow windwheel of the invention is also provided with wind collection that is coaxial with the wheel hub and being cylindrical in shape setting, makes institute
The barrel for stating wind collection is sequentially connected in the middle part of the multiple long fan blade；First group of fan blade is respectively positioned on the interior of the wind collection
This fraction to intercept the air-flow of the long fan blade Radial Flow using the wind collection, and is concentrated on described first by side
Group fan blade is formed by Ji Fengqu and concentrates submitting.Furthermore the and interval of the outer leaf margin of each short fan blade and the wind collection
Setting, to be formed with gap between short fan blade and wind collection, the gap for the axial-flow windwheel inlet side fraction
Into, thus the air pressure in the outer leaf margin circumferential direction of balanced short fan blade so that derive from the siphonal lobe fate of short fan blade from air-flow be not easy
Leaf formed here revolves sharp whirlpool, therefore can reduce wind loss and noise, increases the air output of the axial-flow windwheel.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of axial-flow windwheel first embodiment of the present invention；
Fig. 2 is the main view of Fig. 1 Axial-Flow wind wheel；
Fig. 3 is a part of structural schematic diagram of Fig. 2 Axial-Flow wind wheel；
Fig. 4 is the side view of Fig. 1 Axial-Flow wind wheel；
Fig. 5 is revolving speed-air quantity contrast test figure of axial-flow windwheel and conventional axial-flow windwheel of the invention；
Fig. 6 is air quantity-noise contrast test figure of axial-flow windwheel and conventional axial-flow windwheel of the invention.
Fig. 7 is the structural schematic diagram of axial-flow windwheel second embodiment of the present invention；
Fig. 8 is the main view of Fig. 7 Axial-Flow wind wheel.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Wheel hub | 331 | Imploded arcs |
| 200 | Short fan blade | 332 | Outer concave arc |
| 300 | Long fan blade | 340 | Leaf margin afterwards |
| 310 | Leaf portion in second | 341 | Interior convex arc |
| 320 | Second outer leaf portion | 342 | Outer line segment |
| 330 | Preceding leaf margin | 400 | Wind collection |
The object of the invention is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Based on enough realizations, within the protection scope of the bright requirement of knot of technical solution.It is answered when conjunction appearance is conflicting or cannot achieve
When the combination for thinking this technical solution is not present, also not in this hair
The present invention provides a kind of axial-flow windwheel and air conditioner, and the axial-flow windwheel can reduce radial along the axial-flow windwheel
The air quantity of flowing to increase the axial-feeding-air amount of the axial-flow windwheel, and then reduces the power of the axial-flow windwheel, reduces energy consumption.
In the present embodiment, which is installed in air conditioner, and the air conditioner can be window air conditioner, split air conditioner
Or cabinet air conditioner.Wherein, if the air conditioner is window air conditioner, the axial-flow windwheel is set to the window air conditioner
Outside；If the air conditioner is split air conditioner, the axial-flow windwheel is set to the outdoor unit of the split air conditioner.When
So, in other embodiments, the axial-flow windwheel is also mountable in fan, blower.
Fig. 1 and Fig. 2 are please referred to, in the first embodiment of axial-flow windwheel of the present invention, the axial-flow windwheel includes wheel hub 100
And first group of fan blade and second group of fan blade on wheel hub 100, first group of fan blade includes multiple long fan blades 300, described
Second group of fan blade includes multiple short fan blades 200, and the multiple long fan blade 300 is arranged with the multiple short interval of fan blade 200；It is described
Axial-flow windwheel further includes wind collection 400 that is coaxial with wheel hub 100 and being cylindrical in shape setting, and the barrel of wind collection 400 is sequentially connected institute
State multiple 300 middle parts of long fan blade；First group of fan blade is respectively positioned on the inside of wind collection 400, and the siphonal lobe of each short fan blade 200
The interval of edge and wind collection 400 is arranged.
Specifically, wheel hub 100 is with driving motor to connect, multiple long fan blades 300 and the multiple short 200 edge of fan blade
The outer ring Zhou Yici alternate intervals of wheel hub 100 are arranged.Herein it should be noted that for long fan blade 300, the short fan blade
The radius of circumference where 200 outer leaf margin, less than radius of a circle where the outer leaf margin of long fan blade 300, the radius of a circle should all
For the equivalent redius of corresponding circle.
When the axial-flow windwheel works, wheel hub 100 is rotated by the driving motor, and drives this two groups of fan blade rotations
Turn.Wherein, first group of fan blade drives the interior of closer wheel hub 100 to enclose flow rotation, and concentrates edge should this fraction
The central axial blowout of axial-flow windwheel；Second group of fan blade drives the peripheral air stream further away from wheel hub 100 to rotate, and by this fraction
It concentrates along the axial blowout in the periphery of the axial-flow windwheel.Obviously, cooperate rotation simultaneously by this two groups of fan blades, it can be by edge in air flow collection
The axial of the axial-flow windwheel considerably increases the draft capacity of the axial-flow windwheel to outdoor blowout, and then increases the axis stream
The air output of wind wheel.
Since first group of fan blade and second group of fan blade interval are arranged, on the one hand, work in the axial-flow windwheel
When, the vibration frequency of first group of fan blade and second group of fan blade is different, so that the gas passed through through second group of fan blade water conservancy diversion
Stream and the air-flow passed through through second group of fan blade water conservancy diversion, frequency is also different, and after the mixing of two air-flows, frequency is reduced, and frequency spectrum broadens, reaches
To the purpose of the outlet air frequency of the reconciliation axial-flow windwheel and the effect of reduction noise.
It is also contemplated that, due to the short fan blade 200 of first group of fan blade, its radial width is smaller, and fraction shifts to an earlier date herein
The axial-flow windwheel radial direction wind loss on the one hand is easily led to from, this fraction in the siphonal lobe fate of short fan blade 200, so that the axis
The axial-feeding-air amount for flowing wind wheel reduces；On the other hand, leaf fine jade point whirlpool easily is formed in the outer leaf margin of the short fan blade 200 and cause larger
Noise.
Therefore in the present embodiment, by the way that the setting coaxial and straight with wheel hub 100 is arranged on the axial-flow windwheel
Wind collection 400 makes the barrel of wind collection 400 be sequentially connected the multiple 300 middle part of long fan blade；First group of fan blade is respectively positioned on
The inside of wind collection 400 to be intercepted the air-flow of long 300 Radial Flow of fan blade using wind collection 400, and this fraction is concentrated
Ji Fengqu, which is formed by, in first group of fan blade concentrates submitting.Furthermore the and outer leaf margin and wind collection of each short fan blade 200
400 interval setting, to be formed with gap between short fan blade 200 and wind collection 400, the gap for the axial-flow windwheel into
The fraction of wind side enters, thus the air pressure in the outer leaf margin circumferential direction of balanced short fan blade 200, so as to derive from short fan blade 200
Siphonal lobe fate from air-flow be not easy leaf formed here and revolve sharp whirlpool, therefore wind loss and noise can be reduced, increase the axis stream wind
The air output of wheel.Wind collection 400 and long fan blade 300 can be integrally formed setting or split settings.
Technical solution of the present invention, by the way that first group of fan blade and second group are arranged on the wheel hub 100 of the axial-flow windwheel
Fan blade encloses flow rotation to drive using first group of fan blade in closer wheel hub 100, and this fraction is concentrated edge
The central axial blowout of the axial-flow windwheel；And second group of fan blade drives the peripheral air stream further away from wheel hub 100 to rotate, and by this part
The axial blowout in periphery in air flow collection along the axial-flow windwheel.So cooperate rotation simultaneously by this two groups of fan blades, it can be by air flow collection
It is middle to considerably increase the draft capacity of the axial-flow windwheel to outdoor blowout along the axial of the axial-flow windwheel, and then described in increase
The air output of axial-flow windwheel.
Furthermore axial-flow windwheel of the invention is also provided with wind collection 400 that is coaxial with wheel hub 100 and being cylindrical in shape setting, makes
The barrel of wind collection 400 is sequentially connected the multiple 300 middle part of long fan blade；First group of fan blade is respectively positioned on wind collection 400
This fraction to intercept the air-flow of long 300 Radial Flow of fan blade using wind collection 400, and is concentrated on described first by inside
Group fan blade is formed by Ji Fengqu and concentrates submitting.Furthermore and the interval of the outer leaf margin and wind collection 400 of each short fan blade 200 is set
Set, to be formed with gap between short fan blade 200 and wind collection 400, the gap for the axial-flow windwheel inlet side part
Air-flow enters, thus the air pressure in the outer leaf margin circumferential direction of balanced short fan blade 200 so that derive from the siphonal lobe fate of short fan blade 200 from
Air-flow be not easy leaf formed here and revolve sharp whirlpool, therefore wind loss and noise can be reduced, increase the air output of the axial-flow windwheel.
To verify axial-flow windwheel technical effect achieved of the invention, under identical fan blade quantity and working condition, point
Other to test axial-flow windwheel of the invention and conventional axial-flow windwheel, data measured is as follows:
The conventional axial-flow windwheel of table 1., the parameter measured
| Revolving speed (r/min) | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 850 | 4270 | 132.3 | 59.4 |
| 800 | 4013 | 109.5 | 57.1 |
| 750 | 3747 | 92.8 | 55.3 |
| 700 | 3495 | 74.9 | 53.8 |
| 650 | 3262 | 55.3 | 51.9 |
2. first kind axial-flow windwheel of table, the parameter measured
| Revolving speed (r/min) | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 850 | 4511 | 140.6 | 58.2 |
| 800 | 4245 | 118.1 | 56.3 |
| 750 | 3983 | 100.9 | 53.4 |
| 700 | 3737 | 82.7 | 52.5 |
| 650 | 3497 | 63.2 | 50.9 |
According to 2 data measured of above-mentioned table 1 and table, draw revolving speed-wind quantity test figure (as shown in Figure 5) and air quantity-are made an uproar
Sound test chart (as shown in Figure 6).It can be seen that under the conditions of same rotational speed, it is of the invention for conventional axial-flow windwheel
The air quantity of first kind axial-flow windwheel increases nearly 230m3/ h, the nearly 1.2dB of lower noise, and its power is increased less than 9w.Obviously, institute
While larger air quantity can be obtained by stating first kind axial-flow windwheel, power is unlikely to excessive.
The wind collection 400 of axial-flow windwheel of the present invention straight can be arranged；Alternatively, wind collection 400 is from the axial-flow windwheel
Its lateral air side of air inlet be in gradually-reducing shape or the setting of flaring shape.Fig. 1 and Fig. 2 are please referred to, in above-mentioned first embodiment, wind collection
400 settings straight.
Specifically, the cylinder of wind collection 400 outside straight for being surrounded on first group of fan blade, first group of wind
Each short fan blade 200 of leaf is arranged with the inner wall face interval of the cylinder, with each short fan blade 200 and wind collection 400 it
Between be each formed with gap, with the air pressure in the outer leaf margin circumferential direction of preferably balanced short fan blade 200.
Fig. 3 and Fig. 4 are please referred to, to make wind collection 400 reach preferable collection wind effect, the radius of wheel hub 100 is R0, long wind
The radius of circumference where the outer leaf margin of leaf 300 is R1, the equivalent barrel dliameter of wind collection 400 is R2, axial cylinder depth H, the H ∈ of wind collection 400
[(R2-R0), (R1-R2)].Herein it should be noted that in the present embodiment and following embodiment, defined by technical characteristic numerical value
When size (except thickness and cylinder depth) is horizontal positioned with the axial-flow windwheel, the axial-flow windwheel is corresponding in the horizontal plane to project institute
The size obtained.
Specifically, " radius " of above-mentioned wheel hub 100 or long fan blade 300 be using 100 center of wheel hub as the center of circle etc.
Radius is imitated, is not the specific radius of a certain local location.Due to the setting straight of wind collection 400, then wind collection 400 etc.
Effect barrel dliameter is its practical barrel dliameter.If H is less than (R1-R0), then the axial cylinder of wind collection 400 is deeply too small, is not enough to described first group
The air quantity that fan blade generates is concentrated；If H is greater than (R2-R1), then the axial cylinder of wind collection 400 is deeply excessive, on the one hand blocks the axis
The air inlet for flowing wind wheel, on the other hand also takes up biggish space.
Fig. 7 and Fig. 8 are please referred to, in the second embodiment of the present invention, the difference is that, is collected with above-mentioned first embodiment
Its lateral air side of the air inlet of air duct 400 from the axial-flow windwheel is in gradually-reducing shape setting.It so may make the air inlet of wind collection 400
Side is in flared, in order to which the air-flow in the circumferential direction of inlet side enters in wind collection 400, increases intake；And its air side is in contracting
Mouth shape, is conducive in the air flow collection that will be enclosed in the axial-flow windwheel, so that the air output enclosed in increasing, extends air supplying distance.
Specifically, the axial cylinder depth of wind collection 400 is H, H ∈ [(R2-R0), (R1-R2)], since wind collection 400 is from institute
Its lateral air side of air inlet for stating axial-flow windwheel is in gradually-reducing shape setting, therefore the equivalent barrel dliameter of wind collection 400 is its barrel dliameter that is averaged.
Fig. 7 and Fig. 8 are please referred to, above-mentioned any one embodiment is based on, to reduce air-flow from the inlet side of the axial-flow windwheel
Into the resistance in the gap, spacing between the outer leaf margin of short fan blade 200 and the inner wall of wind collection 400, from the axis stream
Its lateral air side of the air inlet of wind wheel is gradually reduced.
Specifically, its lateral air side of the air inlet of the spacing from the axial-flow windwheel is gradually reduced, may make described
The air inlet collateral resistance of spacing is smaller, smaller to the percussion of the outer leaf margin of short fan blade 200, vibration is not likely to produce, to reduce
The noise generated by vibration.
For the axial-flow windwheel in second embodiment, due to wind collection 400 from the axial-flow windwheel into
Its lateral air side of wind is in gradually-reducing shape setting, while its lateral air side of air inlet of the spacing from the axial-flow windwheel gradually subtracts
It is small, so as to form the gap of arc-shaped extension, the arc between the inner wall of the cylinder and the outer leaf margin of short fan blade 200
The width in gap is the gap.In this way, that is, its lateral outlet air of the air inlet of the arc-shaped gaps from the axial-flow windwheel
Side extends, and its width is gradually reduced.
In the present embodiment, it is contemplated that if the spacing is excessive, be easy to be formed with Ye Xuan in the outer leaf margin of short fan blade 200
Sharp whirlpool, causes wind loss and noise.Therefore the spacing should be kept in a certain range.Preferably, the outer leaf margin of short fan blade 200
Minimum spacing between the inner wall of wind collection 400 is D, D ∈ (0,0.05R1].It is also contemplated that if the spacing is too small, it should
Gap, which may be not enough to supply stream, to be passed through, to be not enough to the air pressure in the outer leaf margin circumferential direction of balanced short fan blade 200.Therefore it is preferred that
Ground, D ∈ [0.01R1, 0.05R1]。
In addition, in other embodiments, wind collection 400 can also be from its lateral air side of air inlet of the axial-flow windwheel in gradually
Expand shape setting, so expand the range blown outward using the flared end of wind collection 400, is conducive to quickly air-supply outward.
Fig. 2 and Fig. 3 are please referred to, based on the above embodiment, each long fan blade 300 includes being located inside and outside wind collection 400
Second in leaf portion 310 and the second outer leaf portion 320, the surface area of long fan blade 300 is S300, the surface area of leaf portion 310 is in second
S310, S310/S300∈ [0.3,0.8].
Specifically, S310/S300It can be 0.4,0.5,0.6,0.7, it is specific to be set in combination with the specification of the axial-flow windwheel
It sets.By to each local location of long fan blade 300 carry out classifying rationally so that the long fan blade 300 have preferably it is leaf, favorably
In the draft capacity for improving long fan blade 300.If S310/S300It is too small, then 310 wind-guiding area phase of leaf portion in the second of long fan blade 300
To too small, it is difficult to enclose air-flow in aggregation, cause the draft capacity of leaf portion 310 in second bad.If S310/S300It is excessive, then illustrate
The outer 320 wind-guiding area of leaf portion of the second of long fan blade 300 is relatively too small, and the water conservancy diversion dynamics of the second outer leaf portion 320 is insufficient, is unfavorable for pair
Peripheral air stream carries out water conservancy diversion.
In order to confirm S310/S300When effect, after carrying out local classifying rationally to the long fan blade 300 of the axial-flow windwheel,
On the basis of above-mentioned test experiments, under the conditions of being 750r/min based on revolving speed, further the axial-flow windwheel is tested, it is real
It tests as follows:
Table 3-1. axial-flow windwheel of the present invention, the parameter measured
| S310/S300 | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 0.3 | 3975 | 101.7 | 53.9 |
| 0.4 | 3981 | 101.8 | 54.1 |
| 0.5 | 3989 | 101.8 | 54.1 |
| 0.6 | 4013 | 101.1 | 54.2 |
| 0.7 | 3996 | 100.9 | 54.1 |
| 0.8 | 3987 | 101.8 | 54.1 |
| 0.9 | 3961 | 101.7 | 54.0 |
It can be analyzed and be obtained by above-mentioned table 1 and table 3-1, under same rotational speed, S310/S300It is maintained in 0.3~0.8 range
When, which can obtain biggish air quantity, and power and noise are held in reduced levels；And work as S310/S300From 0.8
When increasing to 0.9, the air quantity of the axial-flow windwheel is reduced rapidly, and draft capacity weakens significantly.It can be seen that S310/S300Ying Bao
It holds in a certain range, just can ensure that the axial-flow windwheel obtains biggish air quantity.
Please continue to refer to Fig. 2 and Fig. 3, based on the above embodiment, each long fan blade 300, which has, to be located on front side of direction of rotation
Preceding leaf margin 330 (fan blade rotates from back to front, as represented by the arrows in the dashed line in figure 2), preceding leaf margin 330 is arranged in concave arc shape, so that preceding
Leaf margin 330 has the imploded arcs 331 being formed in second in leaf portion 310, and the outer concave arc being formed in the second outer leaf portion 320
332.It is noted that when with axial-flow windwheel rotation, before the upstream of air-flow is, after the downstream of air-flow is.Therefore preceding leaf margin
330 be the leaf margin of the closer air-flow upstream of long fan blade 300.
Specifically, the preceding leaf margin 330 of each long fan blade 300 is arranged in concave arc shape, and the thickness of preceding leaf margin 330 is from inside to outside
It is in gradually-reducing shape setting.The outer end of the preceding leaf margin 330 is connect with the outer leaf margin front end of the long fan blade 300, thus in the second outer leaf portion
320 front end is formed with blade tip end.In axial-flow windwheel work, the blade tip end, which is cut forward, plunders air-flow, and air-flow is from frontal lobe
The different location of edge 330 enters the pressure face of long fan blade 300, impact of the air-flow to preceding leaf margin 330 is effectively reduced, to reduce
The generation of noise.
Fig. 2 and Fig. 3 are also please referred to, further, plunders air-flow to ensure that long fan blade 300 can preferably be cut forward, it can be right
Preceding 330 each section length of leaf margin is divided: the arc length of imploded arcs 331 is L1, the arc length of outer concave arc 332 is L2, L1/L2∈
[0.2,1.0].
Specifically, L1/L2It can be 0.4,0.6,0.8, be arranged in practical application in combination with the specification of the axial-flow windwheel.
For example, if L2For 120mm~150mm, then L1For 24mm~150mm；Alternatively, L2For 150mm~200mm, then L1For 30mm~
200mm；Also or, L2For 200mm~300mm, then L1For 40mm~300mm.Herein by carrying out local conjunction to preceding leaf margin 330
Reason divide, can make the long fan blade 300 have preferably before leaf margin 330, have with ensure long 300 each section of fan blade reach compared with
Good cuts forward the ability for plunderring air-flow.If L1/L2Too small, then 331 arc length of imploded arcs of preceding leaf margin 330 is too short, and water conservancy diversion dynamics is not
Foot, it is poor to the draft capacity enclosed in wind collection 400.If L1/L2Excessive, then 332 arc length of outer concave arc of preceding leaf margin 330 is with respect to mistake
It is short, cut forward plunder air-flow ability it is poor, cause the draft capacity of the second outer leaf portion 320 poor.
In order to confirm L1/L2To the effect of the axial-flow windwheel, to the preceding leaf margin 330 of the long fan blade 300 of above-mentioned axial-flow windwheel
After carrying out local division, on the basis of above-mentioned test experiments, under the conditions of being 750r/min based on revolving speed, further to the axis stream wind
Wheel is tested, and is tested as follows:
Table 3-2. axial-flow windwheel of the present invention, the parameter measured
| L1/L2 | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 0.2 | 4010 | 100.7 | 52.7 |
| 0.4 | 4025 | 100.8 | 52.9 |
| 0.6 | 4037 | 100.9 | 53.2 |
| 0.8 | 4019 | 100.8 | 52.8 |
| 1.0 | 4011 | 100.7 | 52.6 |
| 1.2 | 3986 | 100.6 | 52.7 |
It can be analyzed and be obtained by above-mentioned table 1 and table 3-2, under same rotational speed, L1/L2It, should when being maintained in 0.2~1.0 range
Axial-flow windwheel can obtain biggish air quantity, the nearly 1dB of lower noise；Especially L1/L2When being maintained in 0.4~0.8 range,
The air quantity of the axial-flow windwheel reaches maximum, and draft capacity is stronger.And work as L1/L2When increasing to 1.2 from 1.0, the wind of the axial-flow windwheel
Amount is reduced rapidly.It can be seen that L1/L2It should keep in a certain range, just can ensure that the axial-flow windwheel obtains biggish air quantity,
And generated noise is smaller.
Please continue to refer to Fig. 2 and Fig. 3, each long fan blade 300 has being located on rear side of direction of rotation and is arranged in convex arc shaped
Rear leaf margin 340, rear leaf margin 340 has the interior convex arc 341 that is formed in second in leaf portion 310, and is formed in the second siphonal lobe
Outer line segment 342 in portion 320.
Specifically, interior convex arc 341 is arranged in the arc shape of projection backward, the gas in second in leaf portion 310 can be extended
Flow separation point, has effectively postponed the generation of air-flow separation, and then has postponed the generation being vortexed, and reduces the product volume of vortex and damages
The amount of going wrong.And the stalling point since the second outer circumferential distance that extends of leaf portion 320 is longer, with the second outer leaf portion 320
It is longer, so it is not likely to produce vortex, so outer line segment 342 is of a straight line type setting.Certainly, in other embodiments, rear leaf margin
340 can also whole arc-shaped setting.
Fig. 2 and Fig. 3 are also please referred to, further, to ensure that air-flow can be more smoothly from the rear leaf margin of long fan blade 300
340 separation, can divide rear 340 each section length of leaf margin: the arc length of interior convex arc 341 is L3, the length along path of outer line segment 342
Degree is L4, L3/L4∈ [0.2,1.0].
Specifically, L3/L4It can be 0.4,0.6,0.8, the specific specification in combination with the axial-flow windwheel is arranged.For example, if
L4For 100mm~150mm, then L3For 20mm~150mm；Alternatively, L4For 150mm~200mm, then L3For 30mm~200mm；Also
Alternatively, L4For 200mm~300mm, then L3For 40mm~300mm.Herein by carrying out local division to rear leaf margin 340, so that
Leaf margin 340 after the long fan blade 300 has preferably, has to ensure that air-flow can be more smoothly from the rear leaf margin of long fan blade 300
340 separation.If L3/L4Too small, then 341 arc length of interior convex arc of preceding leaf margin 330 is too short, and pressure distribution is more concentrated, and air-flow is easy hair
Raw disorder.If L3/L4Excessive, then 342 segment length of outer line segment of rear leaf margin 340 is relatively too short, and air-flow is radially lost larger, Yi Zao
Radially wind loss.
In order to confirm L3/L4To the effect of axial-flow windwheel, the rear leaf margin 340 of the long fan blade 300 of above-mentioned axial-flow windwheel is carried out
Part divide after, on the basis of above-mentioned test experiments, based on revolving speed be 750r/min under the conditions of, further to the axial-flow windwheel into
Row test, is tested as follows:
Table 3-3. axial-flow windwheel of the present invention, the parameter measured
| L3/L4 | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 0.2 | 4023 | 100.7 | 52.6 |
| 0.4 | 4036 | 100.9 | 52.8 |
| 0.6 | 4045 | 101.1 | 53.1 |
| 0.8 | 4031 | 100.9 | 52.6 |
| 1.0 | 4020 | 100.7 | 52.3 |
| 1.2 | 3989 | 100.6 | 52.5 |
It can be analyzed and be obtained by above-mentioned table 1 and table 3-3, under same rotational speed, L3/L4It, should when being maintained in 0.2~1.0 range
Axial-flow windwheel can obtain biggish air quantity, the nearly 1.2dB of lower noise；Especially L3/L4It is maintained in 0.4~0.8 range
When, the air quantity of the axial-flow windwheel reaches maximum, and draft capacity is stronger.And work as L3/L4When increasing to 1.2 from 1.0, the axial-flow windwheel
Air quantity be reduced rapidly.It can be seen that L3/L4It should keep in a certain range, just can ensure that the axial-flow windwheel obtains biggish wind
Amount, and generated noise is smaller.
The present invention also provides a kind of air conditioner, the air conditioner includes axial-flow windwheel, the specific structure of the axial-flow windwheel
Referring to above-described embodiment, since this air conditioner uses whole technical solutions of above-mentioned all embodiments, equally have upper
All beneficial effects brought by the technical solution of embodiment are stated, this is no longer going to repeat them.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (11)
1. a kind of axial-flow windwheel, which is characterized in that first group of fan blade and second group of wind including wheel hub and on the wheel hub
Leaf, first group of fan blade include multiple long fan blades, and second group of fan blade includes multiple short fan blades, the multiple long fan blade with
The multiple short fan blade interval setting；The axial-flow windwheel further includes wind collection that is coaxial with the wheel hub and being cylindrical in shape setting,
The barrel of the wind collection is sequentially connected in the middle part of the multiple long fan blade；First group of fan blade is respectively positioned on the interior of the wind collection
Side, and the interval of the outer leaf margin of each short fan blade and the wind collection is arranged.
2. axial-flow windwheel as described in claim 1, which is characterized in that the wind collection setting straight；Alternatively, the collection
Its lateral air side of the air inlet of air duct from the axial-flow windwheel is in gradually-reducing shape or the setting of flaring shape；.
3. axial-flow windwheel as claimed in claim 2, which is characterized in that the outer leaf margin of the short fan blade is interior with the wind collection
Spacing between wall surface is gradually reduced from its lateral air side of the air inlet of the axial-flow windwheel.
4. axial-flow windwheel as claimed in claim 3, which is characterized in that the radius of circumference is where the outer leaf margin of the long fan blade
R1, the minimum spacing between the outer leaf margin of the short fan blade and the inner wall of the wind collection is D, D ∈ (0,0.05R1]。
5. axial-flow windwheel as claimed in claim 4, which is characterized in that the radius of the wheel hub is R0, the wind collection it is equivalent
Barrel dliameter is R2, the axial cylinder depth of the wind collection is H, H ∈ [(R2-R0), (R1-R2)]。
6. such as axial-flow windwheel described in any one of claim 1 to 5, which is characterized in that each long fan blade includes being located at institute
Leaf portion and the second outer leaf portion in second inside and outside wind collection are stated, the surface area of the long fan blade is S300, second internal lobe
The surface area in portion is S310, S310/S300∈ [0.3,0.8].
7. axial-flow windwheel as claimed in claim 6, which is characterized in that each long fan blade, which has, to be located on front side of direction of rotation
Preceding leaf margin, the preceding leaf margin in concave arc shape be arranged so that the preceding leaf margin have be formed in it is interior in leaf portion in described second
Concave arc, and the outer concave arc being formed in the described second outer leaf portion.
8. axial-flow windwheel as claimed in claim 7, which is characterized in that the arc length of the imploded arcs is L1, the arc of the outer concave arc
A length of L2, L1/L2∈ [0.2,1.0].
9. axial-flow windwheel as claimed in claim 6, which is characterized in that each long fan blade, which has, to be located on rear side of direction of rotation
And rear leaf margin in convex arc shaped setting, it is described after leaf margin there is the interior convex arc that is formed in described second in leaf portion and shape
At the outer line segment in the described second outer leaf portion.
10. axial-flow windwheel as claimed in claim 9, which is characterized in that the arc length of the interior convex arc is L3, the outer line segment
Line segment length is L4, L3/L4∈ [0.2,1.0].
11. a kind of air conditioner, which is characterized in that the air conditioner includes axis stream wind as described in any one of claim 1 to 10
Wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126925.9A CN110118193A (en) | 2018-02-07 | 2018-02-07 | Axial-flow windwheel and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126925.9A CN110118193A (en) | 2018-02-07 | 2018-02-07 | Axial-flow windwheel and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110118193A true CN110118193A (en) | 2019-08-13 |
Family
ID=67519651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810126925.9A Pending CN110118193A (en) | 2018-02-07 | 2018-02-07 | Axial-flow windwheel and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110118193A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349282A (en) * | 2007-07-16 | 2009-01-21 | 杨圣安 | Impeller set |
| CN101548110A (en) * | 2006-12-11 | 2009-09-30 | 株式会社美姿把 | Cooling fan |
| US20130170995A1 (en) * | 2012-01-04 | 2013-07-04 | Ming-Ju Chen | Axial flow fan blade structure and axial flow fan thereof |
| CN207935153U (en) * | 2018-02-07 | 2018-10-02 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
-
2018
- 2018-02-07 CN CN201810126925.9A patent/CN110118193A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101548110A (en) * | 2006-12-11 | 2009-09-30 | 株式会社美姿把 | Cooling fan |
| CN101349282A (en) * | 2007-07-16 | 2009-01-21 | 杨圣安 | Impeller set |
| US20130170995A1 (en) * | 2012-01-04 | 2013-07-04 | Ming-Ju Chen | Axial flow fan blade structure and axial flow fan thereof |
| CN207935153U (en) * | 2018-02-07 | 2018-10-02 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202789707U (en) | Centrifugal blower | |
| CN106015040B (en) | Propeller fan, fluid delivery system, electric fan and molding die | |
| CN109441876B (en) | No spiral case backward centrifugal fan | |
| CN105526691B (en) | Wind guiding component and axis stream cabinet-type air conditioner | |
| CN110118194A (en) | Axial-flow windwheel and air conditioner | |
| CN109958639A (en) | The fan assembly of air-conditioner outdoor unit and air-conditioner outdoor unit with it | |
| CN105697394A (en) | Micro-miniature efficient outlet flow field distortionless centrifugal fan | |
| CN104729041A (en) | Guide ring, air duct structure and air-conditioner indoor cabinet | |
| CN206071945U (en) | A kind of centrifugal wind wheel, using its centrifugal blower and air-conditioner | |
| CN102901197B (en) | Air outlet structure of air conditioner indoor unit | |
| CN105008723A (en) | Propeller fan and air conditioner equipped with same | |
| CN104235072B (en) | Centrifugal blower and air purifier with centrifugal blower | |
| CN109404305B (en) | Bionic blade volute-free centrifugal ventilator | |
| CN108412809A (en) | A kind of baffle liner, centrifugal blower and air conditioner | |
| CN207935153U (en) | Axial-flow windwheel and air conditioner | |
| CN110513327B (en) | Diagonal flow fan and household electrical appliance | |
| CN207935154U (en) | Axial-flow windwheel and air conditioner | |
| CN104088802B (en) | A kind of 360 ° of fans of optimizing pneumatic performance | |
| CN107906046A (en) | A kind of blast fan | |
| CN110118193A (en) | Axial-flow windwheel and air conditioner | |
| CN109595197B (en) | Fan | |
| CN207879693U (en) | Axial-flow windwheel and air conditioner | |
| CN110118195A (en) | Axial-flow windwheel and air conditioner | |
| CN110529414A (en) | A kind of Centrafugal pipeline fan | |
| CN107939727A (en) | Fan assembly and there is its air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |