CN104747496A - Air conditioner and axial fan and fan blade thereof - Google Patents
Air conditioner and axial fan and fan blade thereof Download PDFInfo
- Publication number
- CN104747496A CN104747496A CN201310737072.XA CN201310737072A CN104747496A CN 104747496 A CN104747496 A CN 104747496A CN 201310737072 A CN201310737072 A CN 201310737072A CN 104747496 A CN104747496 A CN 104747496A
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- CN
- China
- Prior art keywords
- fan
- fan blade
- blade
- axial
- edge face
- 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
- 238000004378 air conditioning Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000003993 interaction Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000012163 sequencing technique 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
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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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a fan blade of an axial flow fan, which comprises a front edge surface, a blade surface and a tail edge surface, wherein the tail edge surface is a curved surface protruding in the direction far away from the front edge surface. The trailing edge surface is set to be the curved surface, so that the contact area of the trailing edge surface and air can be increased, the air supply capacity is improved, and the working capacity of the blade is improved. In addition, the air flow field is more stable through the diversion effect of the curved surface, the problem of wind power concentration is avoided, and the interaction between the airflow sucked by the fan blade and the axial main flow can be slowed down through the diversion effect of the curved surface, so that the noise pollution can be reduced, and the quality of the working environment is improved. The invention also provides an axial flow fan with the fan blade and an air conditioner with the axial flow fan.
Description
Technical field
The present invention relates to air-conditioning production technical field, particularly a kind of air-conditioning and axial fan thereof and fan blade.
Background technique
Axial fan is generally used in air conditioner outdoor machine or other air regenerating devices, its effect having circulating air flowing and promote heat exchanger heat exchange amount.
The basic structure of existing air conditioner axial fan comprises the circular hub with rotating center and is arranged on hub periphery and the some fan blades radially arranged, wherein, fan blade is three-dimension curved surface shape, and it circumferentially comprises leading edge face, blade face and trailing edge face.During work, rotated by motor driving wheel hub, and then drive fan blade to rotate, air is entered from the leading edge surface current of fan blade, then being done work by fan blade obtains voltage rise, then is gone out by the trailing edge surface current of fan blade.
At present in producing fan blade, the circular rectors such as usual employing or change circular rector design, and the trailing edge face of fan blade is generally linear structure.This makes the air-flow that sucked by fan blade and axial main flow interaction produce clipping Boundaries and forms tip vortex, and is increased gradually towards trailing edge face by the leading edge of fan blade, makes this axial-flow leaf operationally have larger noise, affects working environment.
Therefore, how providing a kind of fan blade of axial fan, to reduce the noise pollution in working procedure, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of fan blade of axial fan, to reduce the noise pollution in working procedure.Another object of the present invention is to provide a kind of axial fan with above-mentioned fan blade.Another object of the present invention is to provide a kind of air-conditioning with above-mentioned axial fan.
For solving the problems of the technologies described above, the invention provides following technological scheme:
A fan blade for axial fan, comprises leading edge face, blade face and trailing edge face, and wherein, described trailing edge face is the curved surface to the direction projection away from described leading edge face.
Preferably, in above-mentioned fan blade, described trailing edge face is arc shaped surface.
Preferably, in above-mentioned fan blade, described trailing edge face is connected with described blade face smooth transition.
Preferably, in above-mentioned fan blade, the peak dot in described trailing edge face is 0.8-1.2 to the distance of fan blade rotating center and fan blade center line to the ratio of distances constant of fan blade rotating center;
The radius of described fan blade is designated as Rt, and the radius of wheel hub is designated as Rh, and described fan blade center line is 0.5* (Rt+Rh) to the distance of rotating center.
A kind of axial fan, comprise wheel hub and be arranged on the fan blade on described wheel hub, wherein, described fan blade is the fan blade described in above-mentioned any one.
Preferably, in above-mentioned axial fan, described fan blade is three.
Preferably, in above-mentioned axial fan, three described fan blades are uniformly distributed along the circumference of described wheel hub.
Preferably, in above-mentioned axial fan, the angle between adjacent described fan blade is 115 °-125 °.
A kind of air-conditioning, comprise axial fan, wherein, described axial fan is the axial fan described in above-mentioned any one.
The invention provides a kind of fan blade of axial fan, comprise leading edge face, blade face and trailing edge face, wherein, trailing edge face is the curved surface to the direction projection away from leading edge face.By trailing edge face is set to the area of contact that curved surface can not only increase trailing edge face and air, improve air supply ability, therefore, improve the acting ability of blade.In addition, also by the guide functions of curved surface, make air flow field more stable, avoid the problem occurring wind concentration, and by the guide functions of curved surface, the interaction of air-flow that fan blade sucks and axial main flow can be slowed down, therefore, it is possible to reduction noise pollution, improve the quality of working environment.
Present invention also offers a kind of axial fan, it comprises wheel hub and is arranged on the fan blade on this wheel hub, and wherein, fan blade is above-mentioned disclosed fan blade, and therefore, the axial fan with this fan blade also has above-mentioned all technique effects, and this is no longer going to repeat them.
The present invention also provides height a kind of air-conditioning, comprises axial fan, and wherein, this axial fan is above-mentioned disclosed axial fan, and therefore, the air-conditioning with this axial fan also has above-mentioned technique effect, does not repeat them here.
Accompanying drawing explanation
The structural representation of the axial fan that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is structural representation when axial fan that the embodiment of the present invention provides works in the horizontal plane.
Embodiment
Core of the present invention is to provide a kind of fan blade of axial fan, to reduce the noise pollution in working procedure.Another core of the present invention is to provide a kind of axial fan with above-mentioned fan blade.A core more of the present invention is to provide a kind of air-conditioning with above-mentioned axial fan.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
Please refer to shown in Fig. 1 and Fig. 2, the embodiment of the invention discloses a kind of fan blade of axial fan, comprise leading edge face 121, blade face 122 and trailing edge face 123, wherein, trailing edge face 123 is the curved surface to the direction projection away from above-mentioned leading edge face 121.Leading edge face 121 in the application and trailing edge face 123 are according to axial fan in rotation process, and in rotational direction the sequencing of process carries out title.
Trailing edge face 123 and the area of contact of air can not only be increased by trailing edge face 123 being set to curved surface, improving air supply ability, this improves the acting ability of blade.In addition, also by the guide functions of curved surface, make air flow field more stable, avoid the problem occurring wind concentration, and by the guide functions of curved surface, the interaction of air-flow that fan blade sucks and axial main flow can be slowed down, therefore, it is possible to reduction noise pollution, improve the quality of working environment.
In specific embodiment, trailing edge face 123 is set to arc shaped surface.The stability of air flow field can be ensured further by arranging arc shaped surface.Preferably, arc shaped surface can be set to arc surface.It will be appreciated by persons skilled in the art that in practice can according to the different trailing edge faces 123 needing to arrange differently curved degree, and all in protection domain.
Trailing edge face 123 in the application is connected with blade face 122 smooth transition, the problem causing the impact on air flow field to avoid occurring the wind speed sudden turn of events.
In further embodiment, the peak dot (peak of trailing edge face 123 protrusions) providing a kind of trailing edge face 123 is 0.8 ~ 1.2 to the distance of fan blade rotating center and fan blade center line (fan blade center line is the center line of blade radial height) to the ratio of distances constant of fan blade rotating center, and namely the peak dot in trailing edge face 123 is positioned at 0.8 ~ 1.2 times scope of fan blade center line to fan blade rotating center distance.
Particularly, the radius of fan blade is designated as Rt, the radius of wheel hub 110 is designated as Rh, the radial distance of the rotating center of fan blade center line distance fan blade is set to R, and therefore, its value is 0.5* (Rt+Rh).The peak dot in above-mentioned trailing edge face 123 is 0.5* (Rt+Rh) * (0.8 ~ 1.2) to the distance of rotating center.
A kind of axial fan is additionally provided, it fan blade comprising wheel hub 110 and be arranged on this wheel hub 110, wherein in the embodiment of the present invention, fan blade is fan blade disclosed in above-described embodiment, therefore, the axial fan with this fan blade also has above-mentioned all technique effects, and this is no longer going to repeat them.
Particularly, fan blade is three, and in one embodiment, these three fan blades are uniformly distributed along the circumference of wheel hub 110, to ensure the stability of air flow field.
In as installed, as long as three blades ensure that two adjacent interlobate angles are between 115 °-125 °, with easy-to-operat, person installs.
The present invention also provides height a kind of air-conditioning, comprises axial fan, and wherein, this axial fan is above-mentioned disclosed axial fan, and therefore, the air-conditioning with this axial fan also has above-mentioned technique effect, does not repeat them here.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a fan blade for axial fan, comprises leading edge face (121), blade face (122) and trailing edge face (123), it is characterized in that, described trailing edge face (123) is the curved surface to the direction projection away from described leading edge face (121).
2. fan blade according to claim 1, is characterized in that, described trailing edge face (123) is arc shaped surface.
3. fan blade according to claim 2, is characterized in that, described trailing edge face (123) is connected with described blade face (122) smooth transition.
4. fan blade according to claim 2, is characterized in that, the peak dot of described trailing edge face (123) is 0.8-1.2 to the distance of fan blade rotating center and fan blade center line to the ratio of distances constant of fan blade rotating center;
The radius of described fan blade is designated as Rt, and the radius of wheel hub is designated as Rh, and described fan blade center line is 0.5* (Rt+Rh) to the distance of rotating center.
5. an axial fan, the fan blade comprising wheel hub (110) and be arranged on described wheel hub (110), is characterized in that, described fan blade is the fan blade described in any one of the claims 1-4.
6. axial fan according to claim 5, is characterized in that, described fan blade is three.
7. axial fan according to claim 6, is characterized in that, three described fan blades are uniformly distributed along the circumference of described wheel hub (110).
8. axial fan according to claim 6, is characterized in that, the angle between adjacent described fan blade is 115 °-125 °.
9. an air-conditioning, comprises axial fan, it is characterized in that, described axial fan is the axial fan described in any one of the claims 5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737072.XA CN104747496A (en) | 2013-12-25 | 2013-12-25 | Air conditioner and axial fan and fan blade thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737072.XA CN104747496A (en) | 2013-12-25 | 2013-12-25 | Air conditioner and axial fan and fan blade thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747496A true CN104747496A (en) | 2015-07-01 |
Family
ID=53587634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737072.XA Pending CN104747496A (en) | 2013-12-25 | 2013-12-25 | Air conditioner and axial fan and fan blade thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747496A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894899A (en) * | 2020-08-26 | 2020-11-06 | 珠海格力电器股份有限公司 | Fan blade, fan blade impeller, fan assembly and air conditioning equipment |
| CN111894900A (en) * | 2020-08-26 | 2020-11-06 | 珠海格力电器股份有限公司 | Fan blade, fan blade impeller, fan assembly and air conditioning unit |
-
2013
- 2013-12-25 CN CN201310737072.XA patent/CN104747496A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894899A (en) * | 2020-08-26 | 2020-11-06 | 珠海格力电器股份有限公司 | Fan blade, fan blade impeller, fan assembly and air conditioning equipment |
| CN111894900A (en) * | 2020-08-26 | 2020-11-06 | 珠海格力电器股份有限公司 | Fan blade, fan blade impeller, fan assembly and air conditioning unit |
| CN111894900B (en) * | 2020-08-26 | 2022-01-28 | 珠海格力电器股份有限公司 | Fan blade, fan blade impeller, fan assembly and air conditioning unit |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150701 |