CN108302065A - Low noise axial-flow leaf - Google Patents
Low noise axial-flow leaf Download PDFInfo
- Publication number
- CN108302065A CN108302065A CN201710617444.3A CN201710617444A CN108302065A CN 108302065 A CN108302065 A CN 108302065A CN 201710617444 A CN201710617444 A CN 201710617444A CN 108302065 A CN108302065 A CN 108302065A
- Authority
- CN
- China
- Prior art keywords
- blade
- radius
- wheel hub
- orthographic projection
- projection line
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
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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
- F04D29/666—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of low noise axial-flow leafs, including wheel hub and blade in wheel hub side is set, the radius of wheel hub is D1, the radius of the orthographic projection line of the outer side edges of blade is D3, the orthographic projection line of blade trailing edge includes the straightway being connect with wheel hub and the arc segment that is connect with straightway, straightway, arc segment tie point at a distance from hub centre be D2, wherein D2=D1* (D3 D1)/2；The radius of blade inlet edge is R1, and the radius of arc segment is R2, wherein R2=(D2 D1) * R1.It is optimized by wheel hub to axial-flow leaf and each structural parameters of blade, the specifically careful influence for having studied synergistic effect balance between axial-flow leaf air output and low noise tone between hub radius, blade inlet edge orthographic projection line radius, blade trailing edge orthographic projection line radius and blade outboard side orthographic projection line radius, there are aerodynamic optimization notches between blade trailing edge and wheel hub, in the case where ensureing the variation of blade air output less, noise content is reduced.
Description
Technical field
The present invention relates to axial-flow leaf technical fields, and in particular to a kind of low noise axial-flow leaf.
Background technology
The purposes of axial-flow leaf in daily life is very extensive, and what axis stream referred to is exactly the axis co-flow with fan blade
Air-flow, if electric fan, outdoor machine of air-conditioner fan are exactly the wind turbine run in a manner of axis stream.Axial fan with axial-flow leaf is usual
And pressure requirements lower occasion higher used in traffic requirement, is widely used in field of air conditioning.Common axial-flow leaf is main
It is made of wheel hub and the multiple blades for being arranged in wheel hub side, although structure is simple, axial-flow leaf detailed structure everywhere
Date parameter requirement is very high, has a significant impact to the operating and noise control of axial-flow leaf, in the related technology, axial-flow leaf
Detailed design is constantly reinforced, but between its blade, wheel hub each parameter influence of the association to axial-flow leaf noise performance
It still needs further improvement.
Invention content
The technical problem to be solved by the present invention is to provide a kind of optimization by each relevant parameter between blade, wheel hub
Control is to obtain the axial-flow leaf of more low noise properties.
The technical scheme is that a kind of low noise axial-flow leaf is provided, including wheel hub and setting are in the wheel hub
The radius of the blade of side, the wheel hub is D1, and the radius of the orthographic projection line of the outer side edges of the blade is D3, the blade tail
The orthographic projection line of edge includes the straightway being connect with the wheel hub and the arc segment that is connect with the straightway, the straight line
Section, arc segment tie point with the hub centre at a distance from be D2, wherein D2=D1* (D3-D1)/2；The blade inlet edge
Radius be R1, the radius of the arc segment is R2, wherein R2=(D2-D1) * R1.
Further, the outer side edges of the blade are provided with the anti-chimb that quivers, the anti-chimb that quivers close to blade trailing edge
Width increases gradually from blade inlet edge one end to blade trailing edge one end.
Further, the outside portion of the anti-chimb that quivers is deviateed towards the leeward side of the blade extends.
Technical solution of the present invention has the beneficial effect that：It is carried out by wheel hub to axial-flow leaf and each structural parameters of blade excellent
Change, it is specifically careful to have studied hub radius, blade inlet edge orthographic projection line radius, blade trailing edge orthographic projection line radius and blade
The influence of synergistic effect balance between axial-flow leaf air output and low noise tone between outer side edges orthographic projection line radius, and
Design is optimized to blade trailing edge, the orthographic projection line of trailing edge includes a straightway and an arc segment so that blade trailing edge with
There are aerodynamic optimization notches between wheel hub, and D2=D1* (D3-D1)/2 is associated as by being arranged between above-mentioned each parameter；R2=
(D2-D1) * R1 reduce noise content in the case where ensureing the variation of blade air output less.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structure chart of low noise axial-flow leaf of the embodiment of the present invention.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments.
Refering to Figure 1, the present invention provides a kind of low noise axial-flow leaf, including wheel hub 1 and setting are in wheel hub 1
The blade 2 of side, wherein the radius of wheel hub 1 is D1, and the radius of the orthographic projection line of the outer side edges of blade 2 is D3, blade trailing edge 3
Orthographic projection line include the straightway 3a being connect with the wheel hub 1 and arc segment 3b being connect with straightway 3a, straightway 3a, camber line
The tie point of section 3b is D2 at a distance from 1 center of wheel hub, wherein D2=D1* (D3-D1)/2；The radius of blade inlet edge 4 is R1,
The radius of arc segment 3b is R2, wherein R2=(D2-D1) * R1.
Specifically, it is optimized by wheel hub 1 to axial-flow leaf and 2 each structural parameters of blade, specifically careful research
1 radius of wheel hub, 4 orthographic projection line radius of blade inlet edge, the 2 outer side edges orthographic projection of 3 orthographic projection line radius of blade trailing edge and blade
The influence of synergistic effect balance between axial-flow leaf air output and low noise tone between line radius, and to blade trailing edge 3
Design is optimized, the orthographic projection line of trailing edge includes an a straightway 3a and arc segment 3b so that blade trailing edge 3 and wheel hub 1
Between there are aerodynamic optimization notch, be associated as D2=D1* (D3-D1)/2 by being arranged between above-mentioned each parameter；R2=(D2-
D1) * R1 reduce noise content in the case where ensureing the variation of blade air output less.
It is improved as one of which, the outer side edges of blade 2 are provided with the anti-chimb 5 that quivers, the anti-chimb that quivers at blade trailing edge 3
5 width increases gradually from 4 one end of blade inlet edge to 3 one end of blade trailing edge.
Specifically, the blade 2 of axial-flow leaf can not stop to tremble in high-speed rotation due to influences such as high-speed flow and vortex
Noise is formed, air-flow enters from 4 one end of blade inlet edge axially to be blown out through blade windward side by 3 one end high-speed mobile of blade trailing edge,
The anti-chimb 5 that quivers gradually to broaden has certain inhibiting effect to the disorderly air-flow of unordered disturbance, can reduce the shape of partial noise
At.
As one of which optimization design, the outside portion of the anti-chimb 5 that quivers is deviateed towards the leeward side of blade 2 to be extended.It is anti-
Quiver chimb 5 outer ledge towards 2 leeward of blade extend, have drainage to the disorderly air-flow at windward side edge, ensureing
In the case of air output variation less, partial noise can be reduced to a certain extent.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of low noise axial-flow leaf, including wheel hub and blade in the wheel hub side is set, it is characterised in that：It is described
The radius of wheel hub is D1, and the radius of the orthographic projection line of the outer side edges of the blade is D3, the orthographic projection line packet of the blade trailing edge
The arc segment for including the straightway being connect with the wheel hub and being connect with the straightway, the connection of the straightway, arc segment
Point is D2 at a distance from the hub centre, wherein D2=D1* (D3-D1)/2；The radius of the blade inlet edge is R1, described
The radius of arc segment is R2, wherein R2=(D2-D1) * R1.
2. low noise axial-flow leaf according to claim 1, it is characterised in that：The outer side edges of the blade are close to blade tail
The anti-chimb that quivers is provided at edge, the width of the anti-chimb that quivers increases gradually from blade inlet edge one end to blade trailing edge one end.
3. low noise axial-flow leaf according to claim 1, it is characterised in that：The outside portion of the anti-chimb that quivers is towards described
The leeward side of blade, which is deviateed, to be extended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617444.3A CN108302065B (en) | 2017-07-26 | 2017-07-26 | Low noise axial-flow leaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617444.3A CN108302065B (en) | 2017-07-26 | 2017-07-26 | Low noise axial-flow leaf |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108302065A true CN108302065A (en) | 2018-07-20 |
| CN108302065B CN108302065B (en) | 2019-10-25 |
Family
ID=62872509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710617444.3A Active CN108302065B (en) | 2017-07-26 | 2017-07-26 | Low noise axial-flow leaf |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302065B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042551A1 (en) * | 2018-09-01 | 2020-03-05 | 中山大洋电机股份有限公司 | Axial flow fan wheel and axial flow fan using same |
| CN111075758A (en) * | 2019-12-31 | 2020-04-28 | 佛山市云米电器科技有限公司 | Clustering fan blade |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752457A (en) * | 2004-09-22 | 2006-03-29 | 松下电器产业株式会社 | Blower impeller |
| CN101012839A (en) * | 2007-01-31 | 2007-08-08 | 广东美的电器股份有限公司 | Axial-flow windwheel |
| CN200996391Y (en) * | 2007-01-31 | 2007-12-26 | 广东美的电器股份有限公司 | Axial-flow wind wheel |
| CN204572556U (en) * | 2015-02-12 | 2015-08-19 | 美的集团武汉制冷设备有限公司 | Air conditioner outdoor machine and air conditioner |
-
2017
- 2017-07-26 CN CN201710617444.3A patent/CN108302065B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752457A (en) * | 2004-09-22 | 2006-03-29 | 松下电器产业株式会社 | Blower impeller |
| CN101012839A (en) * | 2007-01-31 | 2007-08-08 | 广东美的电器股份有限公司 | Axial-flow windwheel |
| CN200996391Y (en) * | 2007-01-31 | 2007-12-26 | 广东美的电器股份有限公司 | Axial-flow wind wheel |
| CN204572556U (en) * | 2015-02-12 | 2015-08-19 | 美的集团武汉制冷设备有限公司 | Air conditioner outdoor machine and air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042551A1 (en) * | 2018-09-01 | 2020-03-05 | 中山大洋电机股份有限公司 | Axial flow fan wheel and axial flow fan using same |
| US11286946B2 (en) | 2018-09-01 | 2022-03-29 | Zhongshan Broad-Ocean Motor Co., Ltd. | Wind wheel and fan comprising the same |
| CN111075758A (en) * | 2019-12-31 | 2020-04-28 | 佛山市云米电器科技有限公司 | Clustering fan blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108302065B (en) | 2019-10-25 |
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