CN110118196A - Axial-flow windwheel and air conditioner - Google Patents
Axial-flow windwheel and air conditioner Download PDFInfo
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- CN110118196A CN110118196A CN201810138858.2A CN201810138858A CN110118196A CN 110118196 A CN110118196 A CN 110118196A CN 201810138858 A CN201810138858 A CN 201810138858A CN 110118196 A CN110118196 A CN 110118196A
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- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—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
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 short fan blades, second group of fan blade includes multiple long fan blades, and the multiple long fan blade and the multiple short fan blade alternate intervals are arranged；The axial-flow windwheel further includes third group fan blade, the third group fan blade includes multiple collection fan blades extended along the axial-flow windwheel direction of rotation, each collection fan blade is located between the long fan blade on front side of the short fan blade and the neighbouring short fan blade, and the collection fan blade connects the air intake surface of the outer leaf margin and the long fan blade of the short fan blade.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, and then reduce the power of the axial-flow windwheel, reduce energy consumption.
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.Currently on the market
There is axial-flow windwheel a kind of while that there is long fan blade and short fan blade, the draft capacity of this axial-flow windwheel is stronger, still, at this
In the axial-flow windwheel course of work, fraction can cause biggish wind along short fan blade Radial Flow, easily formation leaf top aerial drainage whirlpool
Amount loss.
Summary of the invention
The main object of the present invention is to propose a kind of axial-flow windwheel, it is intended to can be reduced along the axial-flow windwheel Radial Flow
Air quantity, to increase the axial-feeding-air amount of the axial-flow windwheel, and then reduce the power of the axial-flow windwheel, reduce energy consumption.
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 short fan blades, second group of fan blade includes multiple long fan blades, between the multiple long fan blade replaces with the multiple short fan blade
Every setting；The axial-flow windwheel further includes third group fan blade, and the third group fan blade includes multiple along axial-flow windwheel rotation
The collection fan blade that direction extends, each collection fan blade are located between the long fan blade on front side of the short fan blade and the neighbouring short fan blade,
The both ends of the collection fan blade are separately connected the blade face of the outer leaf margin and the long fan blade of the short fan blade.
Preferably, the blade face of the collection fan blade is arranged in tabular；Alternatively, the blade face of the collection fan blade is along axial-flow windwheel diameter
It is arranged in the convex arc shaped of outside projection.
Preferably, the collection fan blade has the first Ji Fengbi connecting with the long fan blade, the first collection wind wall place
All radiuses are R1, radius of a circle where the outer leaf margin of the long fan blade is R2, R1∈[0.4R2, 0.8R2]。
Preferably, the arc length of first Ji Fengbi is L1, the long fan blade, which has, is in same with first Ji Fengbi
Segmental arc on one circumference, the arc length of the segmental arc are L2, L1∈[0.5L2, 0.8L2]。
Preferably, the height of first Ji Fengbi is in be gradually reduced setting from back to front；First Ji Fengbi has
Towards the first top edge of the axial-flow windwheel inlet side, the air intake surface of the front end of the first top edge and the long fan blade is flat
Slip.
Preferably, first Ji Fengbi has the first bottom leaf edge connecting with the long fan blade, first Ji Fengbi
One end of the neighbouring first bottom leaf edge is arranged in concave arc shape.
Preferably, the thickness of first Ji Fengbi is in be gradually reduced setting from back to front.
Preferably, the collection fan blade has and protrudes towards the axial-flow windwheel air side and connect the short fan blade and institute
The second Ji Fengbi of the first Ji Fengbi is stated, the height of second Ji Fengbi is in be gradually reduced setting from front to back.
Preferably, the inner wall of first Ji Fengbi is α, α ∈ with the blade face angulation of corresponding long fan blade
[90 °, 130 °].
Technical solution of the present invention, by the way that first group of fan blade and second group of fan blade are arranged on the axial-flow windwheel, with benefit
Cooperate rotation simultaneously with first group of fan blade and second group of fan blade, can by air flow collection along the axial direction of the axial-flow windwheel to room
Outer blowout increases the axial-feeding-air amount of the axial-flow windwheel.And third group fan blade, the third group wind are set on the wheel hub
Each collection fan blade of leaf connects adjacent short fan blade and long fan blade, to be intercepted by the collection fan blade along the short fan blade radial flow
Dynamic air-flow, this fraction will carry over the extending direction rotational flow of the collection fan blade, avoid it in the outer leaf margin of short fan blade
Leaf top aerial drainage whirlpool is formed, the generation of the aerodynamic noise of windage loss is reduced.Finally, this fraction is concentrated on described by the collection fan blade
Region is enclosed in axial-flow windwheel concentrates submitting.It can be seen that axial-flow windwheel of the invention, can not only reduce noise, and increase
The air output of the axial-flow windwheel extends air supplying distance.
Furthermore since each collection fan blade connects adjacent long fan blade and short fan blade, so that this connected long fan blade, short fan blade
And collection fan blade three constitutes triangle location structure, can so reinforce the stability of three kinds of fan blades of the axial-flow windwheel.Institute
During stating axial-flow windwheel work, this three kinds of fan blades are less prone to that chatter occurs under Action of Wind pressure power, reach and more preferably drop
It makes an uproar effect.
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 one embodiment of axial-flow windwheel of the present invention；
Fig. 2 is the structural schematic diagram at another visual angle of Fig. 1 Axial-Flow wind wheel；
Fig. 3 is the structural schematic diagram of the air intake of Fig. 2 Axial-Flow wind wheel；
Fig. 4 is the structural schematic diagram of the outlet air end of Fig. 2 Axial-Flow wind wheel；
Fig. 5 is the partial structure diagram of Fig. 2 Axial-Flow wind wheel；
Fig. 6 is the side view of Fig. 2 Axial-Flow wind wheel；
Fig. 7 is the side view in Fig. 6 at A.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Wheel hub | 410 | First Ji Fengbi |
| 200 | Short fan blade | 41a | First top edge |
| 300 | Long fan blade | 41b | First bottom leaf edge |
| 310 | Interior leaf portion | 420 | Second Ji Fengbi |
| 320 | Outer leaf portion | 42a | Second top edge |
| 400 | Collect fan blade |
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
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
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.
Please refer to Fig. 1 and Fig. 2, in an embodiment of axial-flow windwheel of the present invention, the axial-flow windwheel include wheel hub 100 and
First group of fan blade and second group of fan blade on wheel hub 100, first group of fan blade include multiple short fan blades 200, and described
Two groups of fan blades include multiple long fan blades 300, and the multiple long fan blade 300 is arranged with the multiple short 200 alternate intervals of fan blade；Institute
Stating axial-flow windwheel further includes third group fan blade, and the third group fan blade includes multiple extending along the axial-flow windwheel direction of rotation
Collect fan blade 400, each collection fan blade 400 is located between short fan blade 200 and the long fan blade 300 of neighbouring short 200 front side of fan blade, collects wind
The both ends of leaf 400 are separately connected the outer leaf margin of the short fan blade 200 and the blade face of the long fan blade 300.
Specifically, the quantity of the long fan blade 300 of the axial-flow windwheel, short fan blade 200 and collection fan blade 400 is identical, each length
Fan blade 300 and each short fan blade 200 are arranged along the outer ring Zhou Yici alternate intervals of wheel hub 100, and each collection fan blade 400 connects adjacent
Short fan blade 200 and long fan blade 300, the rear end of the collection fan blade 400 are connect with the outer leaf margin of short fan blade 200, and the collection fan blade 400
Front end extends forwardly on the air intake surface of the long fan blade 300 of neighbouring short 200 front side of fan blade, and the air inlet with the long fan blade 300
Face connection.Herein it should be noted that for long fan blade 300, the radius of circumference where the outer leaf margin of the short fan blade 200,
Less than radius of a circle where the outer leaf margin of long fan blade 300, the radius of a circle should be the equivalent redius of corresponding circle.
Fig. 3 and Fig. 4 are please referred to, wheel hub 100 with driving motor (not shown) to connect, to work in the axial-flow windwheel
When, wheel hub 100 is driven by the driving motor and is rotated, to drive this three groups of fan blade rotations.Wherein, first group of fan blade drives
Flow rotation is enclosed in closer wheel hub 100, and this fraction is concentrated along the central axial blowout of the axial-flow windwheel；Described
Two groups of fan blades drive the peripheral air stream further away from wheel hub 100 to rotate, and this fraction is concentrated along the periphery of the axial-flow windwheel
Axial blowout.Obviously, first group of fan blade and second group of fan blade cooperate rotation simultaneously, can by air flow collection along the axis stream wind
Wheel it is axial to outdoor blowout.
In above-mentioned two groups of fan blade rotary courses, fraction along short fan blade 200 Radial Flow, and from the short fan blade
200 suction surface flows to pressure face, this fraction through too short fan blade 200 outer leaf margin when, by collection fan blade 400 interception and
The extending direction rotational flow of collection fan blade 400 is carried over, so that this fraction be avoided to form leaf top in the outer leaf margin of short fan blade 200
Aerial drainage whirlpool.It can be seen that the third group fan blade, which effectively prevents air-flow, forms leaf top aerial drainage whirlpool in the outer leaf margin of short fan blade 200,
On the one hand the draft capacity of the axial-flow windwheel is increased, and then increases the air output of the axial-flow windwheel, extends air supplying distance；Separately
On the one hand the generation for reducing aerodynamic noise, is effectively reduced the noise of the axial-flow windwheel.
Technical solution of the present invention, by the way that first group of fan blade and second group of fan blade are arranged on the axial-flow windwheel, with benefit
Cooperate rotation simultaneously with first group of fan blade and second group of fan blade, can by air flow collection along the axial direction of the axial-flow windwheel to room
Outer blowout increases the axial-feeding-air amount of the axial-flow windwheel.And third group fan blade, the third group wind are set on wheel hub 100
Each collection fan blade 400 of leaf connects adjacent short fan blade 200 and long fan blade 300, to be intercepted by collection fan blade 400 along short fan blade
The air-flow of 200 Radial Flows, this fraction will carry over the extending direction rotational flow of collection fan blade 400, avoid it in short fan blade
200 outer leaf margin forms leaf top aerial drainage whirlpool, reduces the generation of the aerodynamic noise of windage loss.Finally, this fraction is by collection fan blade 400
Concentrate submitting in the interior region of enclosing for concentrating on the axial-flow windwheel.It can be seen that axial-flow windwheel of the invention, can not only reduce and make an uproar
Sound, and increase the air output of the axial-flow windwheel, extend air supplying distance.
Furthermore since each collection fan blade 400 connects adjacent long fan blade 300 and short fan blade 200, so that this connected long wind
Leaf 300, short fan blade 200 and collection 400 three of fan blade constitute triangle location structure, can so reinforce three kinds of the axial-flow windwheel
The stability of fan blade.During axial-flow windwheel work, this three kinds of fan blades are less prone to occur under Action of Wind pressure power
Chatter reaches more preferably noise reduction effect.
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 present 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 |
Axial-flow windwheel table 2-1. of the invention, the parameter measured
| Revolving speed (r/min) | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 850 | 4486 | 140.6 | 58.2 |
| 800 | 4223 | 118.1 | 56.3 |
| 750 | 3959 | 100.9 | 53.4 |
| 700 | 3710 | 82.7 | 52.5 |
| 650 | 3469 | 63.2 | 50.9 |
According to 2 data measured of above-mentioned table 1 and table, under the conditions of same rotational speed, for conventional axial-flow windwheel, this hair
The air quantity of bright axial-flow windwheel increases nearly 213m3/ h, the nearly 1.2dB of lower noise, and its power is increased less than 8w.Obviously, this hair
While bright axial-flow windwheel can obtain larger air quantity, power is unlikely to excessive.
Referring to Fig. 2, be the noise reduction effect to the axial-flow windwheel of enhancing collection fan blade 400 based on the above embodiment, it is excellent
Selection of land, the blade face for collecting fan blade 400 are arranged along the radial direction of axial-flow windwheel in the convex arc shaped of outside projection.Herein it should be noted that originally
With 100 center of wheel hub be in embodiment it is interior, the radial direction of the axial-flow windwheel is introversion and extroversion.
When along the air flow direction collection fan blade 400 of short 200 Radial Flow of fan blade, this fraction instantaneous velocity is larger, directly
It connects impact and is easy to produce biggish noise on collection fan blade 400.It therefore is to be set in convex recessed outward by collection fan blade 400
It sets, makes the blade face for integrating fan blade 400 as convex globoidal using this, thus in the air flow direction collection fan blade along short 200 Radial Flow of fan blade
When 400, this fraction carries over the convex globoidal arc line shaped flowing of collection fan blade 400, and the convex globoidal of the collection fan blade 400 is to this part gas
Stream plays preferable buffer function, to avoid generating gas shock noise, reaches stronger noise reduction effect.And so set,
It also helps by collecting fan blade 400, this fraction is concentrated in the axial-flow windwheel and encloses region concentration submitting.
Certainly, in other embodiments, collect can also being arranged in tabular for fan blade 400.Specifically, collection fan blade 400 is in
The tabular of strip is arranged, and the both ends of collection fan blade 400 are separately connected the outer leaf margin and the long fan blade 300 of the short fan blade 200
On air intake surface.
Fig. 2 and Fig. 3 are please referred to, based on the above embodiment, it is contemplated that when the axial-flow windwheel works, also there is fraction edge
The Radial Flow of long fan blade 300, causes part wind loss, therefore, intercepts using collection fan blade 400 radial along long fan blade 300
The air-flow of flowing.Preferably, collection fan blade 400 has the first collection wind wall 410 connecting with long fan blade 300, the first collection 410 institute of wind wall
It is R in all radiuses1, radius of a circle where the outer leaf margin of long fan blade 300 is R2, R1∈[0.4R2, 0.8R2].It should illustrate herein
Be, in the present embodiment and following embodiment, defined by technical characteristic numeric dimensions it is horizontal positioned with the axial-flow windwheel
When, the axial-flow windwheel is corresponding in the horizontal plane to project resulting size.
Specifically, the first collection wind wall 410 will be divided into 320 two parts of internal lobe portion 310 and outer leaf portion between long fan blade 300, in
The air-flow that the interior leaf portion 310 radially flows is intercepted by the first collection wind wall 410, and along the extending direction of the first collection wind wall 410
Air-flow is concentrated in the axial-flow windwheel and encloses region concentration blowout by rotational flow；And the air-flow Jing Guo outer leaf portion 320 is then
Along the circumferential flow of the axial-flow windwheel, the peripheral region for coming together in the axial-flow windwheel concentrates blowout.Cooperated with this, it can be significantly
The wind loss of long fan blade 300 in the radial direction is reduced, the air quantity of the axial-flow windwheel is increased.Therefore, the R1It should not mistake
It is small, if R1Less than 0.4R2, then 310 radical length of interior leaf portion of long fan blade 300 is shorter, and its outer 320 radical length of leaf portion is longer,
Air-flow is relatively easy to cause wind loss in outer leaf portion 320 radially aerial drainage.The R1Also it should not be too large, if R1Close to R2When,
The air quantity of outer leaf portion 320 is less, and the air quantity of the axial-flow windwheel periphery is caused to reduce.
To verify above-mentioned R1∈[0.4R2, 0.8R2] to the effect of the axial-flow windwheel, in the test experiments of above-described embodiment
On the basis of, under the conditions of being 750r/min based on revolving speed, further the axial-flow windwheel is tested, test data is as follows:
Table 2-2. axial-flow windwheel of the present invention, the parameter measured
| R1/R2 | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 0.2 | 3780 | 94.5 | 55.8 |
| 0.4 | 3893 | 97.5 | 53.7 |
| 0.6 | 3961 | 100.9 | 53.2 |
| 0.8 | 3925 | 98.7 | 53.5 |
| 1.0 | 3795 | 95.0 | 55.1 |
It can be analyzed and be obtained by above-mentioned Tables 1 and 2-2, under 750r/min revolving speed, R1/R2It is maintained in 0.4~0.8 range
When (R1∈[0.4R2, 0.8R2]), for the axial-flow windwheel for conventional axial-flow windwheel, air quantity increases 146m3/ h~
214m3/ h, noise decline 1.6dB~2.3dB, its power remains at reduced levels at this time；Especially R1/R2It is maintained at 0.6~
When 0.8, the air quantity which obtains is maximum.And work as R1/R2When dropping to 0.2 from 0.4 or R1/R2Increase drop from 0.8
When to 1.0, the air quantity of the axial-flow windwheel is reduced rapidly, and draft capacity weakens significantly.It can be seen that R1/R2One should be maintained at
Determine in range, just can ensure that the axial-flow windwheel obtains biggish air quantity, while ensuring that its noise is maintained at the level of telling somebody what one's real intentions are.
As for the R2Size, then be corresponding design, the R according to the axial-flow windwheel of same specification1With R2Actual size
Do corresponding design.For example, if R2For 150mm, then R1For 60mm~120mm；If R2It is 200, then R1For 80mm~160mm；If R2
When for 250mm, then R1For 100mm~200mm；If R2For 250mm, then R1For 100mm~200mm.
Fig. 2, Fig. 3 and Fig. 5 are please referred to, based on the above embodiment, to ensure that the first collection wind wall 410 can effectively be intercepted along length
The front end of first collection wind wall 410 can be extended to the preceding leaf margin for being closer to long fan blade 300 by the air-flow of 300 Radial Flow of fan blade
Position.Preferably, first integrates the arc length of wind wall 410 as L1, long fan blade 300, which has, collects the arc that wind wall 410 connects for first
Portion, the arc length of the curved portion are L2, L1∈[0.5L2, 0.8L2]。
Specifically, it is clear that the L1It is unsuitable too small, if the L1Less than 0.5L2, then first collects the arc length of wind wall 410 (i.e.
It is equivalent to development length of the first collection wind wall 410 on long fan blade 300) it is shorter, deficiency intercepts the Radial Flow along long fan blade 300
Air-flow, collection wind effect it is unobvious.The theoretically L1It increases to and L2When equal, the collection wind effect of the first collection wind wall 410 is most
It is good, but the resistance of air-flow flowing is also increased simultaneously, cause wind energy to lose, therefore preferred L herein1Less than or equal to 0.8L2。
To verify above-mentioned L1∈[0.3L2, 0.8L2] to the effect of the axial-flow windwheel, in the test experiments of above-described embodiment
On the basis of, under the conditions of being 750r/min based on revolving speed, further the axial-flow windwheel is tested, test data is as follows:
Table 2-3. axial-flow windwheel of the present invention, the parameter measured
| L1/L2 | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 0.1 | 3778 | 94.5 | 55.8 |
| 0.3 | 3893 | 97.5 | 54.2 |
| 0.4 | 3961 | 100.9 | 53.5 |
| 0.6 | 3925 | 98.7 | 53.4 |
| 0.8 | 3865 | 96.3 | 53.7 |
| 1.0 | 3797 | 95.3 | 55.5 |
It can be analyzed and be obtained by above-mentioned Tables 1 and 2-3, under 750r/min revolving speed, L1/L2It is maintained in 0.3~0.8 range
When (L1∈[0.3L2, 0.8L2]), for the axial-flow windwheel for conventional axial-flow windwheel, air quantity increases 146m3/ h~
214m3/ h, noise decline 1.1dB~2.2dB, its power remains at reduced levels at this time；Especially L1/L2It is maintained at 0.4~
When 0.6, the air quantity which obtains is maximum.And work as L1/L2When dropping to 0.1 from 0.3 or L1/L2Increase drop from 0.8
When to 1.0, the air quantity of the axial-flow windwheel is reduced rapidly, and draft capacity weakens significantly.It can be seen that L1/L2It should be maintained at certain
In range, it just can ensure that the axial-flow windwheel obtains biggish air quantity.
As for as the L2Size, then be corresponding design, the L according to the axial-flow windwheel of same specification1With L2Reality
Size does corresponding design.For example, if L2For 80mm, then L1For 24mm~64mm；If L2For 100mm, then L1For 30mm~80mm；
If L2For 120mm, then L1For 36mm~96mm；If L2For 150mm, then L1For 45mm~120mm；If L2For 200mm, then L1For
60mm~160mm.
It please refers to Fig.1 to Fig.3, in the present embodiment, on the basis of above-mentioned any one embodiment, to make to collect fan blade 400
While with preferable collection wind energy power, also there is preferable wind-guiding ability, to enhance the water conservancy diversion dynamics of the axial-flow windwheel.It is excellent
Selection of land, first integrates the inner wall of wind wall 410 with the blade face angulation of corresponding long fan blade 300 as α, α ∈ [90 °, 120 °],
For example, 100 °, 105 °, 110 ° or 115 ° etc..
Specifically, first integrates the wall surface towards wheel hub 100 of wind wall 410 as inner wall, along the axial-flow windwheel
The air-flow of Radial Flow carries over the extending direction of the first collection wind wall 410 under the interception function of the first collection 410 inner wall of wind wall
Rotational flow may make the first collection wind wall 410 with long 300 junction of fan blade to air-flow by limiting the α ∈ [90 °, 120 °]
The resistance of flowing is smaller, and flow conductivity is preferable, enhances the water conservancy diversion dynamics of the axial-flow windwheel, reduces windage loss, and then reduce institute
State the energy consumption of axial-flow windwheel.
To verify above-mentioned α ∈ [90 °, 120 °] to the effect of the axial-flow windwheel, in the test experiments base of above-described embodiment
On plinth, under the conditions of being 750r/min based on revolving speed, further the axial-flow windwheel is tested, test data is as follows:
Table 2-4. axial-flow windwheel of the present invention, the parameter measured
| α | Air quantity (m3/h) | Power (w) | Noise (dB) |
| 80 | 3810 | 94.8 | 55.9 |
| 90 | 3914 | 97.9 | 54.5 |
| 100 | 3968 | 101.3 | 53.6 |
| 110 | 3935 | 98.9 | 53.2 |
| 120 | 3889 | 96.6 | 53.9 |
| 130 | 3802 | 95.7 | 55.6 |
It can be analyzed and be obtained by above-mentioned Tables 1 and 2-3, under 750r/min revolving speed, when α is maintained within the scope of 90 °~120 °,
For the axial-flow windwheel for conventional axial-flow windwheel, air quantity increases 142m3/ h~221m3/ h, noise decline 1.1dB~
2.1dB, its power remains at reduced levels at this time；Especially L1/L2When being maintained at 100 °~110 °, which is obtained
Air quantity it is maximum.
Fig. 2 and Fig. 3 are please referred to, in the present embodiment, on the basis of above-mentioned any one embodiment, for enhancing the first collection wind
The height of the water conservancy diversion dynamics of wall 410, the first collection wind wall 410 is in be gradually reduced setting from back to front；First collection wind wall 410 has court
It is flat to the front end of the first top edge 41a, the first top edge 41a of the axial-flow windwheel inlet side and the air intake surface of long fan blade 300
Slip.
Specifically, the height of the first collection wind wall 410 refers to the height on the axial-flow windwheel axis, the first Ji Fengbi
410 height is in be gradually reduced setting from back to front, may make the front end blade face area of the first collection wind wall 410 smaller, with air-flow
Contact surface it is smaller, cut that plunder generated friction noise when air-flow then smaller.First collection wind wall 410 the first top edge 41a be in
The concave arc shape setting recessed to bottom, the front end of the first top edge 41a extends forwardly on the blade face of long fan blade 300, and with length
The air intake surface of fan blade 300 is smoothly connected, and makes the first top edge 41a have more preferably water conservancy diversion dynamics with this, enhances its energy of blowing
Power reduces to cut and plunders generated friction noise when air-flow.
Fig. 2 and Fig. 3 are also please referred to, in the present embodiment, collection fan blade 400, which has, connects short fan blade 200 and the first Ji Fengbi
410 the second collection wind wall 420, the height of the second collection wind wall 420 is in be gradually reduced setting from front to back.Second collection wind wall 420 has
There is the second top edge 42a towards the axial-flow windwheel air side, the front end of the second top edge 42a is with the first bottom leaf edge 41b's
Rear end is smoothly connected, and to reduce the resistance of stalling point, reduces windage loss.
Specifically, may make the second collection by being from front to back in be gradually reduced setting by the height of the second collection wind wall 420
The rear end blade face area of wind wall 420 is smaller, smaller with the contact surface of air-flow, is conducive to extend the burble point that air-flow extends air-flow,
The generation for reducing whirlpool in area, to reduce noise.
Fig. 6 and Fig. 7 are please referred to, here, to make the first collection wind wall 410 reach more preferably water conservancy diversion dynamics, the first collection wind wall 410
With the first bottom leaf edge 41b connecting with long fan blade 300, the first collection wind wall 410 is in concave arc adjacent to one end of the first bottom leaf edge 41b
Shape setting so can so reduce the resistance of air-flow flowing, enhancing the first collection wind wall 410 by air-flow along its arc-shaped water conservancy diversion
Water conservancy diversion dynamics.Furthermore arc angling 41c can buffer gas flow impact forces, with reduce gas shock generation it is pneumatic
Noise.
It, can also be by the thickness of the first collection wind wall 410 from back to front for the resistance to air-flow for reducing the first collection wind wall 410
In setting is gradually reduced, so that the front end of the first collection wind wall 410 is thinned and more sharp, is conducive to cut forward and plunders air-flow, subtract
The small resistance to air-flow flowing, reduces gas current friction noise.
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 (10)
1. a kind of axial-flow windwheel, which is characterized in that including
Wheel hub；
First group of fan blade, including multiple short fan blades；
Second group of fan blade, including multiple long fan blades, successively alternate intervals are set to the multiple long fan blade with the multiple short fan blade
On the wheel hub；And
Third group fan blade, including multiple collection fan blades extended along the axial-flow windwheel direction of rotation, each collection fan blade is located at
Between long fan blade on front side of the short fan blade and the neighbouring short fan blade, the both ends of the collection fan blade are separately connected the outer of the short fan blade
The blade face of leaf margin and the long fan blade.
2. axial-flow windwheel as described in claim 1, which is characterized in that the blade face of the collection fan blade is arranged in tabular；Or
The blade face of the collection fan blade is radially in the convex arc shaped setting of outside projection along axial-flow windwheel.
3. axial-flow windwheel as claimed in claim 2, which is characterized in that the collection fan blade have towards the axial-flow windwheel into
The first Ji Fengbi that wind side is protruded and connect with the long fan blade, described first integrates wind wall place week all radiuses as R1, the length
Radius of a circle where the outer leaf margin of fan blade is R2, R1∈[0.4R2, 0.8R2]。
4. axial-flow windwheel as claimed in claim 3, which is characterized in that the arc length of first Ji Fengbi is L1, the long fan blade
With the segmental arc being on same circumference with first Ji Fengbi, the arc length of the segmental arc is L2, L1∈[0.5L2,
0.8L2]。
5. axial-flow windwheel as claimed in claim 2, which is characterized in that the height of first Ji Fengbi is in gradually from back to front
Reduce setting；First Ji Fengbi has the first top edge towards the axial-flow windwheel inlet side, the first top edge
Front end and the air intake surface of the long fan blade be smoothly connected.
6. axial-flow windwheel as claimed in claim 5, which is characterized in that first Ji Fengbi has to be connect with the long fan blade
The first bottom leaf edge, first Ji Fengbi adjacent to one end of the first bottom leaf edge in concave arc shape be arranged.
7. axial-flow windwheel as claimed in claim 5, which is characterized in that the thickness of first Ji Fengbi is in gradually from back to front
Reduce setting.
8. such as the described in any item axial-flow windwheels of claim 3 to 7, which is characterized in that the collection fan blade has towards the axis
Protrude and connect the second Ji Fengbi of the short fan blade and first Ji Fengbi, second Ji Fengbi in stream wind wheel air side
Height be from front to back in be gradually reduced setting.
9. such as the described in any item axial-flow windwheels of claim 3 to 7, which is characterized in that the inner wall of first Ji Fengbi with
The blade face angulation of corresponding long fan blade is α, α ∈ [90 °, 130 °].
10. 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 9
Wheel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810138858.2A CN110118196B (en) | 2018-02-07 | 2018-02-07 | Axial flow wind wheel and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810138858.2A CN110118196B (en) | 2018-02-07 | 2018-02-07 | Axial flow wind wheel and air conditioner |
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| CN110118196B CN110118196B (en) | 2024-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075758A (en) * | 2019-12-31 | 2020-04-28 | 佛山市云米电器科技有限公司 | Clustering fan blade |
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| CN103032377A (en) * | 2011-10-09 | 2013-04-10 | 珠海格力电器股份有限公司 | Axial flow fan blade |
| CN104047893A (en) * | 2013-03-15 | 2014-09-17 | 扎尔曼技术株式会社 | Cooling fan |
| CN204041544U (en) * | 2014-08-26 | 2014-12-24 | 晋锋科技股份有限公司 | The flabellum air-flow flow guiding structure of fan |
| CN207879693U (en) * | 2018-02-07 | 2018-09-18 | 广东美的制冷设备有限公司 | Axial-flow windwheel and air conditioner |
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| KR20040041956A (en) * | 2002-11-12 | 2004-05-20 | 엘지전자 주식회사 | Axial flow fan |
| US20080159867A1 (en) * | 2007-01-02 | 2008-07-03 | Sheng-An Yang | Impeller assembly |
| CN103032377A (en) * | 2011-10-09 | 2013-04-10 | 珠海格力电器股份有限公司 | Axial flow fan blade |
| CN104047893A (en) * | 2013-03-15 | 2014-09-17 | 扎尔曼技术株式会社 | Cooling fan |
| CN204041544U (en) * | 2014-08-26 | 2014-12-24 | 晋锋科技股份有限公司 | The flabellum air-flow flow guiding structure of fan |
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| CN111075758A (en) * | 2019-12-31 | 2020-04-28 | 佛山市云米电器科技有限公司 | Clustering fan blade |
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| CN110118196B (en) | 2024-03-26 |
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