CN106762830A - A kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade - Google Patents
A kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade Download PDFInfo
- Publication number
- CN106762830A CN106762830A CN201710074986.0A CN201710074986A CN106762830A CN 106762830 A CN106762830 A CN 106762830A CN 201710074986 A CN201710074986 A CN 201710074986A CN 106762830 A CN106762830 A CN 106762830A
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- China
- Prior art keywords
- dispelling wind
- wind muscle
- muscle
- edge
- thickness
- 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
- 210000003205 muscle Anatomy 0.000 claims abstract description 175
- 230000002093 peripheral effect Effects 0.000 claims abstract description 34
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 1
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
- F04D29/38—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
- F04D29/66—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
- F04D29/663—Sound attenuation
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of low noise fan blade,Including the circular hub with pivot and at least three blades for being distributed in hub periphery and being arranged radially,Blade includes preceding concave surface,Back of the body convex surface,Leading edge,Trailing edge and outer peripheral edge,The first dispelling wind muscle and the 3rd dispelling wind muscle are provided with preceding concave surface,Back of the body convex surface is provided with the second dispelling wind muscle,First dispelling wind muscle,Circumferentially edge is arranged in order and is staggered from leading edge to trailing edge for second dispelling wind muscle and the 3rd dispelling wind muscle,First dispelling wind muscle,Second dispelling wind muscle and the 3rd dispelling wind muscle smoothly transit with outer peripheral edge,The height of first dispelling wind muscle and the 3rd dispelling wind muscle near one end of leading edge is zero and smoothly transits with preceding concave surface respectively,Second dispelling wind muscle near one end of leading edge be highly zero and with the back of the body convex surface smoothly transit,Advantage is that the tip vortex of fan blade is decomposed into the different small whirlpool in three locus by original one big whirlpool,And can also mutually be dissipated between these small whirlpools,The tip vortex that preceding a piece of blade can be significantly reduced strikes the noise that rear a piece of blade is produced；Weaken the turbulence noise at blade tip；After low noise fan blade of the invention is used for into air-conditioner outdoor unit, the effect for reducing noise is very notable.
Description
Technical field
The present invention relates to a kind of fan blade, more particularly, to a kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade.
Background technology
In air-conditioner outdoor unit and many household electrical appliance, low pressure axial-flow leaf is widely used, and its basic structure includes
Circular hub with pivot and several blades that hub periphery and side are arranged radially are distributed in, its Leaf has
Aerofoil, leading edge and trailing edge, its trailing edge are slightly linearly.Driven by motor and rotated, air is flowed into from the leading edge of blade, is passed through
Aerofoil is flowed out after being boosted by the trailing edge of blade.And as the fan blade used on household electrical appliance, except requiring compact conformation, air quantity
Outside big, the size of its noise is one of important indicator of measurement product quality.
In order to reach the effect of fan blade mute, all circles scientific worker has carried out substantial amounts of work and trial, has also obtained
Certain breakthrough, but problem is still present.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of low noise fan blade, including with rotation
The circular hub at center and at least three blades for being distributed in described hub periphery and be arranged radially, described leaf packet
Preceding concave surface, back of the body convex surface, leading edge, trailing edge and outer peripheral edge are included, the first dispelling wind muscle and the 3rd dispelling wind muscle are provided with described preceding concave surface,
Described back of the body convex surface is provided with the second dispelling wind muscle, and described the first dispelling wind muscle, the second described dispelling wind muscle and the described the 3rd are dredged
Outer peripheral edge of the wind muscle from described leading edge to described trailing edge described in is arranged in order and is staggered, described the first dispelling wind muscle,
Described the second dispelling wind muscle and the 3rd described dispelling wind muscle smoothly transits with described outer peripheral edge, the first described dispelling wind muscle and institute
The height of the 3rd dispelling wind muscle stated near one end of described leading edge is zero and smoothly transits with described preceding concave surface respectively, described
The second dispelling wind muscle be highly zero and smoothly transitted with described back of the body convex surface near one end of described leading edge.
The thickness of the first described dispelling wind muscle is identical with the thickness of the 3rd described dispelling wind muscle, is described periphery edge thickness
1 ~ 1.2 times, described the first dispelling wind muscle and the 3rd described dispelling wind muscle are inclined towards described wheel hub direction, and described first dredges
Wind muscle and the 3rd described dispelling wind muscle are identical with the angle of described preceding concave surface, are 30 ~ 85 degree, the first described dispelling wind muscle and institute
The maximum height of the 3rd dispelling wind muscle stated is identical, is 1 ~ 2 times of described periphery edge thickness, the thickness of described the second dispelling wind muscle
It it is 1 ~ 1.2 times of described periphery edge thickness, the second described dispelling wind muscle is inclined towards described wheel hub direction, described second is thin
Wind muscle is 30 ~ 85 degree with the angle on described back of the body convex surface, and the maximum height of the second described dispelling wind muscle is thick described outer peripheral edge
1 ~ 2 times of degree.
Be provided with a pointed tooth v notch v in described leading edge, the thickness of described pointed tooth v notch v from both sides toward crown by
It is tapered small, leading edge of this crown described in contour line be to the distance of described outer peripheral edge described in leading edge profile line
The 1/6 ~ 1/5 of length.
It is provided with the 4th dispelling wind muscle on described preceding concave surface, the curvature of described the 4th dispelling wind muscle and described outer peripheral edge
Curvature is identical, and the rear end of the 4th described dispelling wind muscle is concordant with described trailing edge, the front end of described the 4th dispelling wind muscle with it is described
Leading edge do not connect, the described rear end of the 4th dispelling wind muscle is to the distance of described hub periphery with the intersection point of described trailing edge
The 1/3 ~ 1/2 of described trailing edge length, described the 4th dispelling wind muscle near one end of described leading edge be highly zero and with it is described
Preceding concave surface smoothly transit.
The thickness of the 4th described dispelling wind muscle is 1 ~ 1.2 times of described periphery edge thickness, the 4th described dispelling wind muscle court
Described wheel hub direction inclines, and described the 4th dispelling wind muscle and the angle of described preceding concave surface is 30 ~ 85 degree, and described the 4th is thin
The maximum height of wind muscle is 1 ~ 2 times of described periphery edge thickness.
It is a kind of to have used the low of said structure that the present invention solves another technical scheme for being used of above-mentioned technical problem
Noise fan blade air-conditioner outdoor unit.
Compared with prior art, the advantage of the invention is that being staggered up and down three dispelling wind muscle in the outer peripheral edge of blade,
The tip vortex of fan blade can be decomposed into the different small whirlpool in three locus by original one big whirlpool, and these small whirlpools it
Between can also mutually dissipate, can significantly attenuate the intensity in blade tip whirlpool, the tip vortex of a piece of blade strikes latter before reducing
The noise that piece blade is produced；Meanwhile, the dispelling wind muscle decrease air-flow that can excessively send out smooth with outer peripheral edge separates to form blade tip at blade tip
Peeling strength during whirlpool, reduces the turbulence noise at blade tip；And be arranged close to the 4th dispelling wind muscle of wheel hub, then can partly stop
The crossing current of blade surface, improves the pneumatic efficiency of blade.After low noise fan blade of the invention is used for into air-conditioner outdoor unit, reduction is made an uproar
The effect of sound is very notable, and in the case of equal size and rotating speed, the present invention can be by the 50 of prior art decibels or so
Noise be reduced to 40 decibels.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the blade of the embodiment of the present invention one；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is the structural representation of embodiment of the present invention quaterfoil.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one：A kind of low noise fan blade, including the circular hub 1 with pivot and it is distributed in the periphery of wheel hub 1
And three blades 2 being arranged radially, blade 2 includes preceding concave surface 21, back of the body convex surface 22, leading edge 23, trailing edge 24 and outer peripheral edge 25,
The first dispelling wind muscle 26 and the 3rd dispelling wind muscle 28 are provided with preceding concave surface 21, back of the body convex surface 22 is provided with the second dispelling wind muscle 27, and first dredges
Circumferentially edge 25 is arranged in order and is staggered from leading edge 23 to trailing edge 24 for wind muscle 26, the second dispelling wind muscle 27 and the 3rd dispelling wind muscle 28,
First dispelling wind muscle 26, the second dispelling wind muscle 27 and the 3rd dispelling wind muscle 28 smoothly transit with outer peripheral edge 25, the first dispelling wind muscle 26 and the 3rd
Height of the dispelling wind muscle 28 near one end of leading edge 23 is zero and smoothly transits with preceding concave surface 21 respectively that the second dispelling wind muscle 27 is near preceding
One end of edge 23 is highly zero and is smoothly transitted with back of the body convex surface 22.
The thickness of the first dispelling wind muscle 26 is identical with the thickness of the 3rd dispelling wind muscle 28, is 1.1 times of the thickness of outer peripheral edge 25, first
The dispelling wind muscle 28 of dispelling wind muscle 26 and the 3rd is inclined towards the direction of wheel hub 1, the first dispelling wind muscle 26 and the 3rd dispelling wind muscle 28 and preceding concave surface 21
Angle it is identical, be 55 degree, the first dispelling wind muscle 26 is identical with the maximum height of the 3rd dispelling wind muscle 28, is the thickness of outer peripheral edge 25
1.5 times, the thickness of the second dispelling wind muscle 27 is 1.1 times of periphery edge thickness, and the second dispelling wind muscle 27 is inclined towards the direction of wheel hub 1, second
Dispelling wind muscle 27 is 55 degree with the angle on back of the body convex surface 22, and the maximum height of the second dispelling wind muscle 27 is 1.5 times of periphery edge thickness.
Be provided with a pointed tooth v notch v 29 in leading edge 23, the thickness of pointed tooth v notch v 29 from both sides toward crown 291 gradually
Reduce, crown 291 along leading edge 23 contour line to outer peripheral edge 25 distance be the contour line of leading edge 23 length 1/5.
Embodiment two：Other structures are identical with embodiment one, and difference is the thickness and the 3rd of the first dispelling wind muscle 26
The thickness of dispelling wind muscle 28 is identical, is 1.0 times of the thickness of outer peripheral edge 25, and the first dispelling wind muscle 26 and the 3rd dispelling wind muscle 28 are towards wheel hub 1
Direction inclines, and the first dispelling wind muscle 26 and the 3rd dispelling wind muscle 28 are identical with the angle of preceding concave surface 21, are 30 degree, the He of the first dispelling wind muscle 26
The maximum height of the 3rd dispelling wind muscle 28 is identical, is 2.0 times of the thickness of outer peripheral edge 25, and the thickness of the second dispelling wind muscle 27 is outer peripheral edge thickness
1.2 times of degree, the second dispelling wind muscle 27 is inclined towards the direction of wheel hub 1, and the second dispelling wind muscle 27 is 85 degree, second with the angle on back of the body convex surface 22
The maximum height of dispelling wind muscle 27 is 1.0 times of periphery edge thickness.
Be provided with a pointed tooth v notch v 29 in leading edge 23, the thickness of pointed tooth v notch v 29 from both sides toward crown 291 gradually
Reduce, crown 291 along leading edge 23 contour line to outer peripheral edge 25 distance be the contour line of leading edge 23 length 1/6.
Embodiment three：Other structures are identical with embodiment one, and difference is the thickness and the 3rd of the first dispelling wind muscle 26
The thickness of dispelling wind muscle 28 is identical, is 1.2 times of the thickness of outer peripheral edge 25, and the first dispelling wind muscle 26 and the 3rd dispelling wind muscle 28 are towards wheel hub 1
Direction inclines, and the first dispelling wind muscle 26 and the 3rd dispelling wind muscle 28 are identical with the angle of preceding concave surface 21, are 85 degree, the He of the first dispelling wind muscle 26
The maximum height of the 3rd dispelling wind muscle 28 is identical, is 1.0 times of the thickness of outer peripheral edge 25, and the thickness of the second dispelling wind muscle 27 is outer peripheral edge thickness
1.0 times of degree, the second dispelling wind muscle 27 is inclined towards the direction of wheel hub 1, and the second dispelling wind muscle 27 is 30 degree, second with the angle on back of the body convex surface 22
The maximum height of dispelling wind muscle 27 is 2.0 times of periphery edge thickness.
Be provided with a pointed tooth v notch v 29 in leading edge 23, the thickness of pointed tooth v notch v 29 from both sides toward crown 291 gradually
Reduce, crown 291 along leading edge 23 contour line to outer peripheral edge 25 distance be the contour line of leading edge 23 length 1/5.
Example IV：Other structures are identical with embodiment one, embodiment two and embodiment three, and difference is preceding concave surface
The 4th dispelling wind muscle 20 is provided with 21, the curvature of the 4th dispelling wind muscle 20 is identical with the curvature of outer peripheral edge 25, after the 4th dispelling wind muscle 20
End is concordant with trailing edge 24, and the front end of the 4th dispelling wind muscle 20 does not connect with leading edge 23, rear end and the trailing edge 24 of the 4th dispelling wind muscle 20
Intersection point is the 1/3 ~ 1/2 of trailing edge length to the distance of the periphery of wheel hub 1, and the 4th dispelling wind muscle 20 is highly zero near one end of leading edge 23
And smoothly transitted with preceding concave surface 21.
The thickness of the 4th dispelling wind muscle 20 is 1 ~ 1.2 times of periphery edge thickness, and the 4th dispelling wind muscle 20 is inclined towards the direction of wheel hub 1,
4th dispelling wind muscle 20 is 30 ~ 85 degree with the angle of preceding concave surface 21, and the maximum height of the 4th dispelling wind muscle 20 is the 1 ~ 2 of periphery edge thickness
Times.
Embodiment five：The low noise blade structure of above-mentioned each embodiment is used for air-conditioner outdoor unit（Figure does not show）.
Claims (10)
1. a kind of low noise fan blade, including the circular hub with pivot and described hub periphery is distributed in and in radiating
At least three blades of shape arrangement, described blade includes preceding concave surface, back of the body convex surface, leading edge, trailing edge and outer peripheral edge, it is characterised in that
The first dispelling wind muscle and the 3rd dispelling wind muscle are provided with described preceding concave surface, described back of the body convex surface is provided with the second dispelling wind muscle, described
The first dispelling wind muscle, the second described dispelling wind muscle and the 3rd described dispelling wind muscle from described leading edge to described trailing edge along described
Outer peripheral edge be arranged in order and be staggered, described the first dispelling wind muscle, described the second dispelling wind muscle and the 3rd described dispelling wind muscle
Smoothly transitted with described outer peripheral edge, the first described dispelling wind muscle and the 3rd described dispelling wind muscle are near one end of described leading edge
Height be zero and smoothly transit with described preceding concave surface respectively that the second described dispelling wind muscle is high near one end of described leading edge
Degree is zero and is smoothly transitted with described back of the body convex surface.
2. a kind of low noise fan blade as claimed in claim 1, it is characterised in that the thickness of the first described dispelling wind muscle with it is described
The 3rd dispelling wind muscle thickness it is identical, be 1 ~ 1.2 times of described periphery edge thickness, described the first dispelling wind muscle and described the
Three dispelling wind muscle are inclined towards described wheel hub direction, the first described dispelling wind muscle and the 3rd described dispelling wind muscle and described preceding concave surface
Angle it is identical, be 30 ~ 85 degree, the first described dispelling wind muscle is identical with the maximum height of the 3rd described dispelling wind muscle, is described
1 ~ 2 times of periphery edge thickness, the thickness of the second described dispelling wind muscle is 1 ~ 1.2 times of described periphery edge thickness, described
Second dispelling wind muscle is inclined towards described wheel hub direction, and described the second dispelling wind muscle and the angle on described back of the body convex surface is 30 ~ 85 degree,
The maximum height of the second described dispelling wind muscle is 1 ~ 2 times of described periphery edge thickness.
3. a kind of low noise fan blade as claimed in claim 1 a, it is characterised in that sharp-tooth shaped is provided with described leading edge
Breach, the thickness of described pointed tooth v notch v is gradually reduced from both sides toward crown, this crown along described in leading edge profile
The distance of outer peripheral edge of the line described in is the 1/6 ~ 1/5 of the length of described leading edge profile line.
4. a kind of low noise fan blade as described in claim 1 or 2 or 3, it is characterised in that is provided with described preceding concave surface
Four dispelling wind muscle, the curvature of the 4th described dispelling wind muscle is identical with the curvature of described outer peripheral edge, after the 4th described dispelling wind muscle
End is concordant with described trailing edge, and the front end of the 4th described dispelling wind muscle does not connect with described leading edge, the 4th described dispelling wind muscle
Rear end and described trailing edge intersection point to 1/3 ~ 1/2 that the distance of described hub periphery is described trailing edge length, it is described
The 4th dispelling wind muscle be highly zero and smoothly transitted with described preceding concave surface near one end of described leading edge.
5. a kind of low noise fan blade as claimed in claim 4, it is characterised in that the thickness of the 4th described dispelling wind muscle is described
1 ~ 1.2 times of periphery edge thickness, the 4th described dispelling wind muscle is inclined towards described wheel hub direction, described the 4th dispelling wind muscle with
The angle of described preceding concave surface is 30 ~ 85 degree, and the maximum height of the 4th described dispelling wind muscle is the 1 ~ 2 of described periphery edge thickness
Times.
6. a kind of air-conditioner outdoor unit, including low noise fan blade, described low noise fan blade includes the circular wheel with pivot
Hub and at least three blades for being distributed in described hub periphery and be arranged radially, described blade include preceding concave surface, the back of the body
Convex surface, leading edge, trailing edge and outer peripheral edge, it is characterised in that the first dispelling wind muscle and the 3rd dispelling wind muscle are provided with described preceding concave surface,
Described back of the body convex surface is provided with the second dispelling wind muscle, and described the first dispelling wind muscle, the second described dispelling wind muscle and the described the 3rd are dredged
Outer peripheral edge of the wind muscle from described leading edge to described trailing edge described in is arranged in order and is staggered, described the first dispelling wind muscle,
Described the second dispelling wind muscle and the 3rd described dispelling wind muscle smoothly transits with described outer peripheral edge, the first described dispelling wind muscle and institute
The height of the 3rd dispelling wind muscle stated near one end of described leading edge is zero and smoothly transits with described preceding concave surface respectively, described
The second dispelling wind muscle be highly zero and smoothly transitted with described back of the body convex surface near one end of described leading edge.
7. a kind of air-conditioner outdoor unit as claimed in claim 6, it is characterised in that the thickness of the first described dispelling wind muscle with it is described
The 3rd dispelling wind muscle thickness it is identical, be 1 ~ 1.2 times of described periphery edge thickness, described the first dispelling wind muscle and described the
Three dispelling wind muscle are inclined towards described wheel hub direction, the first described dispelling wind muscle and the 3rd described dispelling wind muscle and described preceding concave surface
Angle angle it is identical, be 30 ~ 85 degree, the first described dispelling wind muscle is identical with the maximum height of the 3rd described dispelling wind muscle, is
1 ~ 2 times of described periphery edge thickness, the thickness of the second described dispelling wind muscle is 1 ~ 1.2 times of described periphery edge thickness, institute
The the second dispelling wind muscle stated is inclined towards described wheel hub direction, and described the second dispelling wind muscle and the angle on described back of the body convex surface be 30 ~
85 degree, the maximum height of the second described dispelling wind muscle is 1 ~ 2 times of described periphery edge thickness.
8. a kind of air-conditioner outdoor unit as claimed in claim 6 a, it is characterised in that sharp-tooth shaped is provided with described leading edge
Breach, the thickness of described pointed tooth v notch v is gradually reduced from both sides toward crown, this crown along described in leading edge profile
The distance of outer peripheral edge of the line described in is the 1/6 ~ 5/1 of the length of described leading edge profile line.
9. a kind of air-conditioner outdoor unit as described in claim 6 or 7 or 8, it is characterised in that is provided with described preceding concave surface
Four dispelling wind muscle, the curvature of the 4th described dispelling wind muscle is identical with the curvature of described outer peripheral edge, after the 4th described dispelling wind muscle
End is concordant with described trailing edge, and the front end of the 4th described dispelling wind muscle does not connect with described leading edge, the 4th described dispelling wind muscle
Rear end and described trailing edge intersection point to 1/3 ~ 1/2 that the distance of described hub periphery is described trailing edge length, it is described
The 4th dispelling wind muscle be highly zero and smoothly transitted with described preceding concave surface near one end of described leading edge.
10. a kind of air-conditioner outdoor unit as claimed in claim 6, it is characterised in that the thickness of the 4th described dispelling wind muscle is described
1 ~ 1.2 times of periphery edge thickness, the 4th described dispelling wind muscle is inclined towards described wheel hub direction, described the 4th dispelling wind muscle with
The angle of described preceding concave surface is 30 ~ 85 degree, and the maximum height of the 4th described dispelling wind muscle is the 1 ~ 2 of described periphery edge thickness
Times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710074986.0A CN106762830A (en) | 2017-02-13 | 2017-02-13 | A kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710074986.0A CN106762830A (en) | 2017-02-13 | 2017-02-13 | A kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106762830A true CN106762830A (en) | 2017-05-31 |
Family
ID=58955950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710074986.0A Pending CN106762830A (en) | 2017-02-13 | 2017-02-13 | A kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade |
Country Status (1)
| Country | Link |
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| CN (1) | CN106762830A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123979A (en) * | 2019-12-31 | 2021-07-16 | 广东美的白色家电技术创新中心有限公司 | Outdoor machine of air conditioner |
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| JP2001280296A (en) * | 2000-03-29 | 2001-10-10 | Hitachi Ltd | Air-conditioner |
| CN101255800A (en) * | 2008-02-28 | 2008-09-03 | 大连海事大学 | Blade tip alula of turbine or steam turbine moving-blade |
| CN101634312A (en) * | 2008-07-23 | 2010-01-27 | 江苏富丽华通用设备有限公司 | Fan blades of axial flow fan |
| CN203148037U (en) * | 2013-01-24 | 2013-08-21 | 浙江瑞速电器科技有限公司 | Blade of air energy water heater |
| CN103291561A (en) * | 2013-05-06 | 2013-09-11 | 南京航空航天大学 | Wind turbine blade with split winglet at apex |
| CN203869196U (en) * | 2014-04-15 | 2014-10-08 | 美的集团股份有限公司 | Axial flow fan blade and air conditioner outdoor unit provided with same |
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2017
- 2017-02-13 CN CN201710074986.0A patent/CN106762830A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001280296A (en) * | 2000-03-29 | 2001-10-10 | Hitachi Ltd | Air-conditioner |
| CN101255800A (en) * | 2008-02-28 | 2008-09-03 | 大连海事大学 | Blade tip alula of turbine or steam turbine moving-blade |
| CN101634312A (en) * | 2008-07-23 | 2010-01-27 | 江苏富丽华通用设备有限公司 | Fan blades of axial flow fan |
| CN203148037U (en) * | 2013-01-24 | 2013-08-21 | 浙江瑞速电器科技有限公司 | Blade of air energy water heater |
| CN103291561A (en) * | 2013-05-06 | 2013-09-11 | 南京航空航天大学 | Wind turbine blade with split winglet at apex |
| CN203869196U (en) * | 2014-04-15 | 2014-10-08 | 美的集团股份有限公司 | Axial flow fan blade and air conditioner outdoor unit provided with same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123979A (en) * | 2019-12-31 | 2021-07-16 | 广东美的白色家电技术创新中心有限公司 | Outdoor machine of air conditioner |
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Application publication date: 20170531 |