CN105257597B - Axial flow fan and axial flow fan blade thereof - Google Patents
Axial flow fan and axial flow fan blade thereof Download PDFInfo
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- CN105257597B CN105257597B CN201510777645.0A CN201510777645A CN105257597B CN 105257597 B CN105257597 B CN 105257597B CN 201510777645 A CN201510777645 A CN 201510777645A CN 105257597 B CN105257597 B CN 105257597B
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- 230000001154 acute effect Effects 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 229920003266 Leaf® Polymers 0.000 claims 17
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The invention discloses an axial flow fan and an axial flow fan blade thereof, wherein the axial flow fan blade comprises a blade (1), and a leeward surface (11) and a windward surface (12) of the blade (1) are intersected at the front edge of the blade to form an included angle theta; the included angle theta is an acute angle. According to the axial flow fan blade, the leeward side and the windward side are intersected at the front edge of the blade to form the included angle theta of an acute angle structure, so that the impact of airflow on the front edge of the blade when the airflow flows into the blade is reduced, and the noise generated when the blade rotates is effectively reduced; the air flow turbulence degree is reduced, the pneumatic performance is improved, and the power consumption of the axial flow fan blade is further reduced.
Description
Technical field
The present invention relates to Fan Equipment technical field, more particularly to a kind of axial flow blower and its axial-flow leaf.
Background technology
Existing exhaust apparatus uses axial flow blower mostly, i.e. motor or other driving devices drives axial-flow leaf to rotate,
Produce larger air output.
During axial-flow leaf rotates, fan blade leading edge is directly contacted with air-flow, and the impact force of generation is larger so that leaf
Piece produces noise；Also, air-flow produces turbulent flow under the action of impact force, influences aeroperformance so that the power consumption of axial-flow leaf
It is larger.
Therefore, noise how is reduced, improves aeroperformance, reduces power consumption, being that those skilled in the art is urgently to be resolved hurrily asks
Topic.
The content of the invention
In view of this, the present invention provides a kind of axial-flow leaf, to reduce noise, improve aeroperformance, reduce power consumption.This
Invention also discloses a kind of axial flow blower.
To achieve the above object, the present invention provides following technical solution：
It can be seen from the above technical scheme that axial-flow leaf provided by the invention, including blade, the blade it is leeward
Face and its windward side are crossed to form angle theta in front of the blade at edge；
The angle theta is acute angle.
Preferably, in above-mentioned axial-flow leaf, the leeward is provided with arcwall face on the side of the blade inlet edge,
The arcwall face intersects with the windward side.
Preferably, in above-mentioned axial-flow leaf, the thickness of the blade inlet edge is less than or equal to 3mm.
Preferably, in above-mentioned axial-flow leaf, there is angle between the axis of the wheel hub of the blade and the axial-flow leaf
α；|α-90°|<15°.
Preferably, in above-mentioned axial-flow leaf, the blade and the radius of corner r of the wheel hub junction of the axial-flow leaf0
≥5mm。
Preferably, in above-mentioned axial-flow leaf, the trailing edge of the blade is provided with recess.
Preferably, in above-mentioned axial-flow leaf, the inner wall of the recess is cambered surface.
Preferably, in above-mentioned axial-flow leaf, the outer rim distance of the recess to the blade is greater than or equal to R/6, wherein,
R is the distance at the center that the outer rim of the blade reaches the wheel hub of the axial-flow leaf.
Preferably, in above-mentioned axial-flow leaf, the junction of the blade and the wheel hub of the axial-flow leaf is provided with reinforcement
Muscle；
The reinforcing rib is located at the junction close to the position of the blade inlet edge.
Preferably, in above-mentioned axial-flow leaf, the quantity of the blade is less than or equal to 3.
Preferably, in above-mentioned axial-flow leaf, the angle theta is less than 70 °.
Present invention also offers a kind of axial flow blower, including driving device and the axis stream wind that is driven by the driving device
Leaf, the axial-flow leaf are such as above-mentioned any one of them axial-flow leaf.
Axial-flow leaf provided by the invention, makes leeward intersect with windward side by the edge in blade, forms acute angle
The angle theta of structure, reduces impact of the air-flow when flowing into blade to blade inlet edge, effectively reduces making an uproar when blade rotates
Sound；Turbulent air flow degree is reduced, improves aeroperformance, and then reduces the power consumption of axial-flow leaf rotation.
Present invention also offers a kind of axial flow blower with above-mentioned axial-flow leaf.Since above-mentioned axial-flow leaf is with above-mentioned
Technique effect, the axial flow blower with above-mentioned axial-flow leaf also should no longer be discussed in detail herein with same technique effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of axial-flow leaf provided in an embodiment of the present invention；
Fig. 2 is the schematic side view of axial-flow leaf provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of blade inlet edge provided in an embodiment of the present invention.
Embodiment
The invention discloses a kind of axial-flow leaf, to reduce noise, improves aeroperformance, reduces power consumption.The present invention also public affairs
A kind of axial flow blower is opened.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
- Fig. 3 is please referred to Fig.1, Fig. 1 is the structure diagram of axial-flow leaf provided in an embodiment of the present invention；Fig. 2 is the present invention
The schematic side view for the axial-flow leaf that embodiment provides；Fig. 3 is the structure diagram of blade inlet edge provided in an embodiment of the present invention.
Axial-flow leaf provided in an embodiment of the present invention, including blade 1, blade 1 has leeward 11 and windward side 12, leeward
Face 11 is crossed to form angle theta in front of the blade with windward side 12 at edge；Wherein, angle theta is acute angle so that is flowed at blade inlet edge
Air-flow flows under the action of angle theta along leeward 11 or windward side 12.
Axial-flow leaf provided in an embodiment of the present invention, by making leeward 11 and 12 phase of windward side in the edge of blade 1
Hand over, form the angle theta of acuter angles, reduce impact of the air-flow when flowing into blade 1 to blade inlet edge, effectively reduce blade
Noise during 1 rotation；Turbulent air flow degree is reduced, improves aeroperformance, and then reduces the power consumption of axial-flow leaf rotation.
It is thinned in order to avoid blade 1 is overall, influences its service life.Leeward 11 is set on the side of blade inlet edge
There is arcwall face 111, arcwall face 111 intersects with windward side 12.Pass through above-mentioned setting, it is ensured that between leeward 11 and windward side 12
Away from (i.e. the thickness of blade 1), arcwall face 111 is crossed to form angle theta with windward side 12, before 111 blade 1 of arcwall face
Edge is thinned.It can also make leeward 11 that clinoplain is set close to the side of blade inlet edge, by clinoplain and 12 phase of windward side
Hand over.By the way that arcwall face 111 is arranged at leeward 11 so that flow into the air-flow of blade 1 more along windward side by blade inlet edge
12 flowings, and then effectively increase the air output of axial-flow leaf provided in an embodiment of the present invention.
Arcwall face 111, arcwall face 111 and leeward 11 can also be set on side of the windward side 12 close to blade inlet edge
It is intersecting.
The thickness of blade inlet edge is less than or equal to 3mm.Wherein, the thickness of blade inlet edge can be arcwall face 111 away from leaf
The side of piece leading edge reaches the distance of windward side 12, or the maximum gauge of blade inlet edge.Pass through above-mentioned setting, it is ensured that
Being thinned for blade inlet edge, further reduces the impact of air-flow stream such as blade 1.
As shown in Fig. 2, there is angle α between the axis of the wheel hub 2 of blade 1 and axial-flow leaf；|α-90°|<15°.That is, leaf
Piece 1 connects with 2 near vertical of wheel hub, effectively increases the bonding strength of blade 1 and wheel hub 2.
Further, as shown in Figure 1, blade 1 and the radius of corner r of 2 junction of wheel hub of axial-flow leaf0≥5mm.Pass through
Above-mentioned setting, increases the rounded structure of blade 1 and 2 junction of wheel hub, avoids the stress concentration of junction, have and further carry
High bonding strength of the blade 1 with wheel hub 2.
In order to reduce by 1 weight of blade, the trailing edge of blade 1 is provided with recess 13.Wherein, the size and location of recess 13 need
Meet the strength demand of blade 1.By setting recess 13, the weight of blade 1 is alleviated, reduces the power consumption of axial-flow leaf.
In the present embodiment, the inner wall of recess 13 is cambered surface, and then effectively prevent the stress concentration at recess 13, effectively really
The intensity of blade 1 is protected.In the present embodiment, the inner wall of recess 13 connects the combination to be formed for the different point cambered surface of multiple diameters
Type cambered surface.The cancave cambered surface of single structure is may be set to be, is no longer discussed in detail herein.
In axial-flow leaf provided in an embodiment of the present invention, the outer rim distance of recess 13 to blade 1 is greater than or equal to R/6, its
In, R is the distance at the center that the outer rim of blade 1 reaches the wheel hub 2 of axial-flow leaf.It is understood that the blade 1 of axial-flow leaf
Main acting region be located at fan blade outer rim, therefore, the region for blade 1 efficient acting area.By above-mentioned setting,
So that outer rim of the recess 13 away from blade 1, avoids the area for reducing efficiently acting area, suppress trailing edge shunting, it is ensured that blade 1
Outlet air efficiency.
As shown in Figure 1, blade 1 and the junction of wheel hub 2 are provided with reinforcing rib 3；Reinforcing rib 3 is located at junction close to blade
The position of leading edge.By setting reinforcing rib 3, the bonding strength of wheel hub 2 and blade inlet edge is improved.
The quantity of blade 1 is less than or equal to 3.In the present embodiment, the quantity of blade 1 is 3, and 3 blades 1 are uniformly arranged
In on wheel hub 2, therefore so that blade 1 has larger efficient acting area, further increases the outlet air efficiency of blade 1.
In the present embodiment, angle theta is less than 70 °, further reduces air-flow and blade inlet edge is rushed when flowing into blade 1
Hit.
The embodiment of the present invention additionally provides a kind of axial flow blower, including driving device and the axis stream wind by driving device driving
Leaf, axial-flow leaf are such as above-mentioned any axial-flow leaf.Since above-mentioned axial-flow leaf has above-mentioned technique effect, there is above-mentioned axis
The axial flow blower of stream fan blade should also have same technique effect, and not repeated them here.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (11)
1. a kind of axial-flow leaf, including blade (1), it is characterised in that the leeward (11) of the blade (1) and its windward side
(12) angle theta is crossed to form at edge in front of the blade；
The angle theta is acute angle；The leeward (11) is provided with arcwall face (111) on the side of the blade inlet edge,
The arcwall face (111) is intersected with the windward side (12), forms the angle theta.
2. axial-flow leaf as claimed in claim 1, it is characterised in that the thickness of the blade inlet edge is less than or equal to 3mm.
3. axial-flow leaf as claimed in claim 1, it is characterised in that the blade (1) and the wheel hub (2) of the axial-flow leaf
Axis between there is angle α；| α -90 ° | 15 ° of ＜.
4. axial-flow leaf as claimed in claim 1, it is characterised in that the blade (1) and the wheel hub (2) of the axial-flow leaf
The radius of corner r of junction0≥5mm。
5. axial-flow leaf as claimed in claim 1, it is characterised in that the trailing edge of the blade (1) is provided with recess (13).
6. axial-flow leaf as claimed in claim 5, it is characterised in that the inner wall of the recess (13) is cambered surface.
7. axial-flow leaf as claimed in claim 5, it is characterised in that the recess (13) to the blade (1) outer rim away from
From more than or equal to R/6, wherein, R be the center that the outer rim of the blade (1) reaches the wheel hub (2) of the axial-flow leaf away from
From.
8. axial-flow leaf as claimed in claim 1, it is characterised in that the blade (1) and the wheel hub (2) of the axial-flow leaf
Junction be provided with reinforcing rib (3)；
The reinforcing rib (3) is located at the junction close to the position of the blade inlet edge.
9. axial-flow leaf as claimed in claim 1, it is characterised in that the quantity of the blade (1) is less than or equal to 3.
10. such as claim 1-9 any one of them axial-flow leafs, it is characterised in that the angle theta is less than 70 °.
11. a kind of axial flow blower, including driving device and the axial-flow leaf that is driven by the driving device, it is characterised in that institute
It is such as claim 1-10 any one of them axial-flow leafs to state axial-flow leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510777645.0A CN105257597B (en) | 2015-11-12 | 2015-11-12 | Axial flow fan and axial flow fan blade thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510777645.0A CN105257597B (en) | 2015-11-12 | 2015-11-12 | Axial flow fan and axial flow fan blade thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105257597A CN105257597A (en) | 2016-01-20 |
| CN105257597B true CN105257597B (en) | 2018-04-20 |
Family
ID=55097463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510777645.0A Active CN105257597B (en) | 2015-11-12 | 2015-11-12 | Axial flow fan and axial flow fan blade thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105257597B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507017B (en) * | 2018-03-15 | 2023-07-14 | 珠海格力电器股份有限公司 | Fan blade structure and air conditioner with same |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264429B1 (en) * | 1997-06-24 | 2001-07-24 | Siemens Aktiengesellschaft | Compressor blade or vane and compressor using a blade or vane |
| KR20020088496A (en) * | 2001-05-17 | 2002-11-29 | 엘지전자 주식회사 | Fan assembly for refrigerator |
| CN1793670A (en) * | 2004-12-21 | 2006-06-28 | 东芝开利株式会社 | Tube-axial fan, outdoor unit of air conditioner |
| CN201116540Y (en) * | 2007-11-05 | 2008-09-17 | 美的集团有限公司 | Fan blade |
| CN201236842Y (en) * | 2008-07-25 | 2009-05-13 | 美的集团有限公司 | Fan blade |
| CN101936308A (en) * | 2010-09-12 | 2011-01-05 | 美的集团有限公司 | Fan blade |
| JP4662438B2 (en) * | 2004-12-01 | 2011-03-30 | 東芝キヤリア株式会社 | Axial fan, outdoor unit of air conditioner |
| CN202991626U (en) * | 2012-12-24 | 2013-06-12 | 格力电器（中山）小家电制造有限公司 | Electric fan blade |
| CN205136124U (en) * | 2015-11-12 | 2016-04-06 | 珠海格力电器股份有限公司 | Axial flow fan and axial flow fan blade thereof |
-
2015
- 2015-11-12 CN CN201510777645.0A patent/CN105257597B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264429B1 (en) * | 1997-06-24 | 2001-07-24 | Siemens Aktiengesellschaft | Compressor blade or vane and compressor using a blade or vane |
| KR20020088496A (en) * | 2001-05-17 | 2002-11-29 | 엘지전자 주식회사 | Fan assembly for refrigerator |
| JP4662438B2 (en) * | 2004-12-01 | 2011-03-30 | 東芝キヤリア株式会社 | Axial fan, outdoor unit of air conditioner |
| CN1793670A (en) * | 2004-12-21 | 2006-06-28 | 东芝开利株式会社 | Tube-axial fan, outdoor unit of air conditioner |
| CN201116540Y (en) * | 2007-11-05 | 2008-09-17 | 美的集团有限公司 | Fan blade |
| CN201236842Y (en) * | 2008-07-25 | 2009-05-13 | 美的集团有限公司 | Fan blade |
| CN101936308A (en) * | 2010-09-12 | 2011-01-05 | 美的集团有限公司 | Fan blade |
| CN202991626U (en) * | 2012-12-24 | 2013-06-12 | 格力电器（中山）小家电制造有限公司 | Electric fan blade |
| CN205136124U (en) * | 2015-11-12 | 2016-04-06 | 珠海格力电器股份有限公司 | Axial flow fan and axial flow fan blade thereof |
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| Publication number | Publication date |
|---|---|
| CN105257597A (en) | 2016-01-20 |
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