CN206972612U - 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
- CN206972612U CN206972612U CN201720126915.6U CN201720126915U CN206972612U CN 206972612 U CN206972612 U CN 206972612U CN 201720126915 U CN201720126915 U CN 201720126915U CN 206972612 U CN206972612 U CN 206972612U
- Authority
- CN
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model 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,Carry on the back 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 close to one end of leading edge is zero and smoothly transitted respectively with preceding concave surface,Second dispelling wind muscle is highly zero close to one end of leading edge and smoothly transitted with back of the body convex surface,Advantage is the tip vortex of fan blade being decomposed into the different small whirlpool in three locus by original one big whirlpool,And can also mutually it be dissipated between these small whirlpools,The tip vortex that preceding a piece of blade can be significantly reduced strikes noise caused by rear a piece of blade；Weaken the turbulence noise at blade tip；After low noise fan blade of the present utility model is used for into air-conditioner outdoor unit, the effect for reducing noise is very notable.
Description
Technical field
The utility model is related to a kind of fan blade, more particularly, to a kind of low noise fan blade and using the fan blade air conditioning chamber outside
Machine.
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 it is distributed in hub periphery and several blades that side is arranged radially, wherein blade have
Aerofoil, leading edge and trailing edge, its trailing edge are slightly linearly.Driven and rotated by motor, air flows into from the leading edge of blade, passes 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-sized, air quantity
Outside big, the size of its noise is one of important indicator for weighing 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, also obtained
Certain breakthrough, but problem still has.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of low noise fan blade and the air conditioning chamber using the fan blade
Outer machine.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of low noise fan blade, including with
The circular hub of pivot and at least three blades for being distributed in described hub periphery and being arranged radially, described leaf
Piece includes preceding concave surface, back of the body convex surface, leading edge, trailing edge and outer peripheral edge, and being provided with the first dispelling wind muscle and the 3rd on described preceding concave surface dredges
Wind muscle, described back of the body convex surface are provided with the second dispelling wind muscle, the first described dispelling wind muscle, the second described dispelling wind muscle and described
Three dispelling wind muscle are arranged in order from described leading edge to described trailing edge along described outer peripheral edge to be staggered, the first described dispelling wind
Muscle, the second described dispelling wind muscle and the 3rd described dispelling wind muscle smoothly transit with described outer peripheral edge, the first described dispelling wind muscle
It is zero with height of the 3rd described dispelling wind muscle close to one end of described leading edge and is smoothly transitted respectively with described preceding concave surface,
The second described dispelling wind muscle is highly zero close to one end of described leading edge and smoothly transitted with described back of the body convex surface.
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, the first described dispelling wind muscle and the 3rd described dispelling wind muscle tilt 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 for the 3rd dispelling wind muscle stated is identical, is 1 ~ 2 times of described periphery edge thickness, the thickness of the second described dispelling wind muscle
For 1 ~ 1.2 times of described periphery edge thickness, the second described dispelling wind muscle tilts towards described wheel hub direction, and described second dredges
Wind muscle and the angle on described back of the body convex surface are 30 ~ 85 degree, and the maximum height of the second described dispelling wind muscle is thick for 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, contour line of this crown along described leading edge to described outer peripheral edge distance for described leading edge profile line
The 1/6 ~ 1/5 of length.
The 4th dispelling wind muscle, the curvature of the 4th described dispelling wind muscle and described outer peripheral edge are provided with described preceding concave surface
Curvature is identical, and the rear end of the 4th described dispelling wind muscle is concordant with described trailing edge, the front end of the 4th described 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, the 4th described dispelling wind muscle close to 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 tilts, and the 4th described dispelling wind muscle and the angle of described preceding concave surface are 30 ~ 85 degree, and the described the 4th dredges
The maximum height of wind muscle is 1 ~ 2 times of described periphery edge thickness.
Another technical scheme is that one kind has used said structure used by the utility model solves above-mentioned technical problem
Low noise fan blade air-conditioner outdoor unit.
Compared with prior art, the utility model has the advantage of three dispelling winds that are staggered above and below the outer peripheral edge of blade
Muscle, the tip vortex of fan blade can be decomposed into the different small whirlpool in three locus by original one big whirlpool, and these are small
It can also mutually be dissipated between whirlpool, the intensity in blade tip whirlpool can be significantly attenuated, the tip vortex of a piece of blade strikes before reduction
Noise caused by a piece of blade afterwards；Meanwhile smooth can excessively send out in dispelling wind muscle and outer peripheral edge weakens air-flow and separates to be formed at blade tip
Peeling strength during tip vortex, reduce the turbulence noise at blade tip；And be arranged close to the 4th dispelling wind muscle of wheel hub, then can part
The crossing current on blocking vane surface, improve the pneumatic efficiency of blade.Low noise fan blade of the present utility model is used for air-conditioner outdoor unit
Afterwards, reduce that the effect of noise is very notable, in the case of equal size and rotating speed, the utility model can be by prior art
50 decibels or so of noise be reduced to 40 decibels.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one；
Fig. 2 is the structural representation of the blade of the utility model embodiment one；
Fig. 3 is Fig. 2 left view；
Fig. 4 is the structural representation of the utility model embodiment quaterfoil.
Embodiment
The utility model 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 include 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 close to one end of leading edge 23 is zero and smoothly transitted respectively with preceding concave surface 21 that second dispelling wind muscle 27 is before
One end of edge 23 is highly zero and smoothly transitted with back of the body convex surface 22.
The thickness of first dispelling wind muscle 26 is identical with the thickness of the 3rd dispelling wind muscle 28, for 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 tilts 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, for 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 tilts towards the direction of wheel hub 1, second
Dispelling wind muscle 27 and the angle on back of the body convex surface 22 are 55 degree, and the maximum height of the second dispelling wind muscle 27 is 1.5 times of periphery edge thickness.
A pointed tooth v notch v 29 is provided with leading edge 23, the thickness of pointed tooth v notch v 29 is gradual from both sides toward crown 291
Reduce, the distance of contour line of the crown 291 along leading edge 23 to outer peripheral edge 25 is the 1/5 of the length of the contour line of leading edge 23.
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 tilts, and the first dispelling wind muscle 26 and the 3rd dispelling wind muscle 28 are identical with the angle of preceding concave surface 21, is 30 degree, the He of the first dispelling wind muscle 26
The maximum height of 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 thick for outer peripheral edge
1.2 times of degree, the second dispelling wind muscle 27 tilt towards the direction of wheel hub 1, and the angle on the second dispelling wind muscle 27 and back of the body convex surface 22 is 85 degree, and second
The maximum height of dispelling wind muscle 27 is 1.0 times of periphery edge thickness.
A pointed tooth v notch v 29 is provided with leading edge 23, the thickness of pointed tooth v notch v 29 is gradual from both sides toward crown 291
Reduce, the distance of contour line of the crown 291 along leading edge 23 to outer peripheral edge 25 is the 1/6 of the length of the contour line of leading edge 23.
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 tilts, and the first dispelling wind muscle 26 and the 3rd dispelling wind muscle 28 are identical with the angle of preceding concave surface 21, is 85 degree, the He of the first dispelling wind muscle 26
The maximum height of 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 thick for outer peripheral edge
1.0 times of degree, the second dispelling wind muscle 27 tilt towards the direction of wheel hub 1, and the angle on the second dispelling wind muscle 27 and back of the body convex surface 22 is 30 degree, and second
The maximum height of dispelling wind muscle 27 is 2.0 times of periphery edge thickness.
A pointed tooth v notch v 29 is provided with leading edge 23, the thickness of pointed tooth v notch v 29 is gradual from both sides toward crown 291
Reduce, the distance of contour line of the crown 291 along leading edge 23 to outer peripheral edge 25 is the 1/5 of the length of the contour line of leading edge 23.
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
The distance of intersection point to the periphery of wheel hub 1 is the 1/3 ~ 1/2 of trailing edge length, and the 4th dispelling wind muscle 20 is highly zero close to one end of leading edge 23
And smoothly transitted with preceding concave surface 21.
The thickness of 4th dispelling wind muscle 20 is 1 ~ 1.2 times of periphery edge thickness, and the 4th dispelling wind muscle 20 tilts towards the direction of wheel hub 1,
4th dispelling wind muscle 20 and the angle of preceding concave surface 21 are 30 ~ 85 degree, 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 is not shown）.
Claims (10)
1. a kind of low noise fan blade, including the circular hub with pivot and it is distributed in described hub periphery and in radiation
At least three blades of shape arrangement, described blade include 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 described in
Outer peripheral edge be arranged in order and be staggered, the first described dispelling wind muscle, the second described 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 close to one end of described leading edge
Height be zero and smoothly transitted respectively with described preceding concave surface that the second described dispelling wind muscle is high close to one end of described leading edge
Degree is zero and smoothly transitted with described back of the body convex surface.
A kind of 2. 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, the first described dispelling wind muscle and described
3rd dispelling wind muscle tilts towards described wheel hub direction, the first described dispelling wind muscle and the 3rd described dispelling wind muscle with it is described preceding recessed
The angle in face is identical, is 30~85 degree, the first described dispelling wind muscle is identical with the maximum height of the 3rd described dispelling wind muscle, for institute
1~2 times of the periphery edge thickness stated, the thickness of the second described dispelling wind muscle are 1~1.2 times of described periphery edge thickness, institute
The the second dispelling wind muscle stated tilts towards described wheel hub direction, and the angle on the second described dispelling wind muscle and 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 are gradually reduced from both sides toward crown, profile of this crown along described leading edge
Line to described outer peripheral edge distance for described leading edge profile line length 1/6~1/5.
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 the distance of described hub periphery be the 1/3~1/2 of described trailing edge length, it is described
The 4th dispelling wind muscle be highly zero close to one end of described leading edge and smoothly transitted with described preceding concave surface.
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 tilts towards described wheel hub direction, the 4th described dispelling wind muscle
Angle with described preceding concave surface is 30~85 degree, and the maximum height of the 4th described dispelling wind muscle is described periphery edge thickness
1~2 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 being 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 the first described dispelling wind muscle, the second described dispelling wind muscle and the described the 3rd dredge
Wind muscle is arranged in order to described trailing edge along described outer peripheral edge from described leading edge and is staggered, the first described dispelling wind muscle,
The second described dispelling wind muscle and the 3rd described dispelling wind muscle smoothly transit with described outer peripheral edge, the first described dispelling wind muscle and institute
Height of the 3rd dispelling wind muscle stated close to one end of described leading edge is zero and smoothly transitted respectively with described preceding concave surface, described
The second dispelling wind muscle be highly zero close to one end of described leading edge and smoothly transitted with described back of the body convex surface.
A kind of 7. 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, the first described dispelling wind muscle and described
3rd dispelling wind muscle tilts towards described wheel hub direction, the first described dispelling wind muscle and the 3rd described dispelling wind muscle with it is described preceding recessed
The angle angle in face is identical, is 30~85 degree, and the first described dispelling wind muscle is identical with the maximum height of the 3rd described dispelling wind muscle,
For 1~2 times of described periphery edge thickness, the thickness of the second described dispelling wind muscle is the 1~1.2 of described periphery edge thickness
Times, the second described dispelling wind muscle tilts towards described wheel hub direction, the second described dispelling wind muscle and the angle on described back of the body convex surface
For 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 are gradually reduced from both sides toward crown, profile of this crown along described leading edge
Line to described outer peripheral edge distance for described leading edge profile line length 1/6~5/1.
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 the distance of described hub periphery be the 1/3~1/2 of described trailing edge length, it is described
The 4th dispelling wind muscle be highly zero close to one end of described leading edge and smoothly transitted with described preceding concave surface.
10. a kind of air-conditioner outdoor unit as claimed in claim 9, 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 tilts towards described wheel hub direction, the 4th described dispelling wind muscle
Angle with described preceding concave surface is 30~85 degree, and the maximum height of the 4th described dispelling wind muscle is described periphery edge thickness
1~2 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720126915.6U CN206972612U (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 |
|---|---|---|---|
| CN201720126915.6U CN206972612U (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 |
|---|---|
| CN206972612U true CN206972612U (en) | 2018-02-06 |
Family
ID=61414087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720126915.6U Active CN206972612U (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 |
|---|---|
| CN (1) | CN206972612U (en) |
-
2017
- 2017-02-13 CN CN201720126915.6U patent/CN206972612U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203756593U (en) | High-efficient centrifugal wind wheel | |
| CN1289897A (en) | Impeller for fun, fun therewith and air conditioner with the fun | |
| CN113719471B (en) | Noise reduction centrifugal impeller with bionic type tail edge blades for breathing machine | |
| CN109404334A (en) | A kind of oblique flow wind wheel and the low noise diagonal flow fan including the oblique flow wind wheel | |
| CN204371773U (en) | Centrifugal fan impeller | |
| CN103486081B (en) | Axial-flow fan blade, fan and air-conditioner outdoor unit | |
| CN105240317A (en) | Fan blade | |
| CN202326414U (en) | Axial-flow fan | |
| CN105275875A (en) | Centrifugal fan blade and centrifugal fan | |
| CN205331054U (en) | Axial -flow fan with many curved surfaces type blade | |
| CN102536900A (en) | Axial flow wind wheel | |
| CN205136124U (en) | Axial fan and axial compressor fan blade thereof | |
| CN103122872A (en) | Axial flow fan | |
| CN203770209U (en) | Enclosed impeller of centrifugal compressor | |
| CN104088802B (en) | A kind of 360 ° of fans of optimizing pneumatic performance | |
| CN206972612U (en) | A kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade | |
| CN203584898U (en) | Low-noise high-efficiency central air conditioner outdoor machine cooling axial-flow fan | |
| CN203130602U (en) | Cross-flow fan for air conditioner, cross-flow blower and air conditioner | |
| CN107165862A (en) | Wind wheel and the refrigeration plant with it | |
| CN106762830A (en) | A kind of low noise fan blade and the air-conditioner outdoor unit using the fan blade | |
| CN206530538U (en) | Blade, impeller and blower fan for impeller | |
| CN213953930U (en) | Noise-reduction axial flow fan | |
| CN202628612U (en) | Axial flow fan blade, fan and air conditioner outdoor machine | |
| CN109114041B (en) | Axial fan rotor blade root circle-guiding modeling structure | |
| CN106762829A (en) | Blade, impeller and blower fan for impeller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |