CN104564819A - Axial flow wind wheel and axial flow fan with same - Google Patents
Axial flow wind wheel and axial flow fan with same Download PDFInfo
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- CN104564819A CN104564819A CN201410856453.4A CN201410856453A CN104564819A CN 104564819 A CN104564819 A CN 104564819A CN 201410856453 A CN201410856453 A CN 201410856453A CN 104564819 A CN104564819 A CN 104564819A
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- coating
- axial
- main body
- scale
- flow
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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
- F04D29/388—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an axial flow wind wheel and an axial flow fan with the same. The axial flow wind wheel comprises a hub and a plurality of blades, the blades are distributed on the peripheral wall of the hub at intervals along the circumferential direction of the hub, each blade comprises a body and a wrapping layer made of different materials, one end of each body is connected with the hub, and at least part of the outer surface of each body is wrapped by the corresponding wrapping layer in the shape of scale or feather. According to the axial flow wind wheel, the flowing resistance of the blades can be effectively reduced, flowing efficiency is improved, pneumatic noise is absorbed or weakened, and noise reflection is reduced. In addition, by properly replacing the materials of the wrapping layers, the weight of the blades is reduced, and cost is reduced. Moreover, the axial flow wind wheel is simple and reasonable in structure and easy to machine, so that the use range of the axial flow wind wheel is expanded.
Description
Technical field
The present invention relates to field of ventilation equipment, especially relate to a kind of axial-flow windwheel and there is its axial-flow blower.
Background technique
Axial-flow windwheel extensive use propelling fluid flows, and is a kind of Conversion of Energy mechanism, the mechanical energy of rotation is converted to fluid flowing kinetic energy.Axial-flow windwheel comprises wheel hub and is arranged on some blades on wheel hub, and blade has leading edge, blade tip, outer rim, trailing edge, blade root, positive pressure face (or being called for short working surface), negative pressure face (or being called for short suction surface).
In correlation technique, the blade of axial-flow windwheel is once injection molded by same material, and blade body is solid construction.Thus, make the flow resistance of blade large, flow noise is large.Meanwhile, the blade of solid construction not only increases the weight of wind wheel, also add the cost of production of wind wheel.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of axial-flow windwheel, and described axial-flow windwheel has the advantage that wind noise is little, working efficiency is high.
The present invention also proposes a kind of axial-flow blower, and described axial-flow blower has axial-flow windwheel as above.
Provide a kind of axial-flow windwheel according to an aspect of the present invention, comprising: wheel hub; Multiple blade, described multiple blade is distributed on described hub periphery wall along the circumferential direction compartment of terrain of described wheel hub, blade described in every sheet comprises the main body and coating be made up of unlike material, one end of described main body is connected with described wheel hub, at least part of outer surface of described main body is wrapped up by described coating, and described coating is fish scale shape or feather shape.
According to axial-flow windwheel of the present invention, by the coating be made up of different materials is covered at least part of outer surface of main body, and coating is fish scale shape or feather shape, effectively can reduces blades flows resistance, raising flow efficiency, absorption or weaken aerodynamic noise, the reflection of reduction noise.In addition, by suitably changing the material of coating, the quality of blade can be alleviated, reduces costs.And, axial-flow windwheel simple and reasonable, be easy to processing, thus expand its using scope.
According to one embodiment of present invention, on the described coating positive pressure face that is wrapped in described main body and/or negative pressure face.
Preferably, the thickness of described coating is 0.1-15mm.
Alternatively, described wheel hub by radially inner side on the direction of radial outside, the thickness of described coating is thickening or thinning gradually gradually.
In one embodiment of the invention, described coating is laid on the outer surface of described main body, is provided with adhesive layer between described coating and described main body.
Alternatively, described coating is embedded in the outer surface of described main body.
Alternatively, described coating is manufactured by quadric injection mould mode.
In one embodiment of the invention, described body interior is provided with cavity.
In one embodiment of the invention, described main body is skeletal structure.
According to some embodiments of the present invention, described coating is fish scale shape coating, and described fish scale shape coating comprises multiple row scale side by side successively, often arranges described scale and comprises the sub-scale of multi-disc.
Alternatively, the multiple described sub-scale often arranged in described scale is located along the same line.
Alternatively, the multiple described sub-scale often arranged in described scale is positioned on same circle.
According to other embodiments of the present invention, described coating is feather shape coating, and described feather shape coating comprises multi-disc suede sheet side by side successively, and described in every sheet, the outer periphery of suede sheet and described blade are almost parallel.
Provide a kind of axial-flow blower according to another aspect of the present invention, comprise axial-flow windwheel as above.
According to axial-flow blower of the present invention, by the coating be made up of different materials is covered at least part of outer surface of main body, and coating is fish scale shape or feather shape, effectively can reduces blades flows resistance, raising flow efficiency, absorption or weaken aerodynamic noise, the reflection of reduction noise.In addition, by suitably changing the material of coating, the quality of blade can be alleviated, reduces costs.And, axial-flow windwheel simple and reasonable, be easy to processing, thus expand its using scope.
Accompanying drawing explanation
Fig. 1 is the plan view of axial-flow windwheel according to an embodiment of the invention;
Fig. 2 is the cross-sectional schematic along A-A direction in Fig. 1;
Fig. 3 is the close-up schematic view at B place in Fig. 2;
Fig. 4 is the stereogram of the axial-flow windwheel in Fig. 1;
Fig. 5 is the plan view of axial-flow windwheel according to another embodiment of the invention;
Fig. 6 is the cross-sectional schematic along C-C direction in Fig. 5;
Fig. 7 is the close-up schematic view at D place in Fig. 6;
Fig. 8 is the plan view of axial-flow windwheel according to still a further embodiment;
Fig. 9 is the stereogram of the axial-flow windwheel in Fig. 8;
Figure 10 is the plan view of axial-flow windwheel according to still another embodiment of the invention;
Figure 11 is the stereogram of the axial-flow windwheel in Figure 10.
Reference character:
Axial-flow windwheel 100,
Wheel hub 110, blade 120,
Main body 121, coating 122, scale 1221, sub-scale 1222, suede sheet 1223,
Positive pressure face 123, negative pressure face 124, outer rim 125,
Leading edge 127, trailing edge 128, blade root 129.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
1-Figure 11 describes the axial-flow windwheel 100 according to the embodiment of the present invention in detail with reference to the accompanying drawings.
As Figure 1-Figure 11, according to the axial-flow windwheel 100 of the embodiment of the present invention, comprising: wheel hub 110 and multiple blade 120.
Specifically, multiple blade 120 is distributed on wheel hub 110 periphery wall along the circumferential direction compartment of terrain of wheel hub 110.As shown in Fig. 1, Fig. 5, Fig. 8 and Figure 10, wheel hub 110 is constructed generally as cylindrical shape, the periphery wall of wheel hub 110 is furnished with equably three blades 120, the shape of three blades 120 can be identical, and the angle between two of arbitrary neighborhood blades 120 can be identical, wherein, each blade 120 all extends from the periphery wall of wheel hub 110 to the direction away from wheel hub 110 central axis, and each blade 120 four of being connected in turn by head and the tail are respectively edge limited and go out.The edge be connected with the periphery wall of wheel hub 110 of blade 120 is blade root 129.That is, as shown in Figure 1, one end of the main body 121 of blade 120 is connected with wheel hub 110, and this end can be formed as blade root 129.
As depicted in figs. 1 and 2, the edge away from wheel hub 110 central axis of blade 120 is outer rim 125, two end points of blade root 129 are connected with two end points of outer rim 125 are corresponding respectively with the two other edge forming blade 120, and are respectively leading edge 127 and trailing edge 128.Two relative surfaces of each blade 120 are respectively positive pressure face 123 and negative pressure face 124.Here, the definition in positive pressure face 123 and negative pressure face 124 is well known to those skilled in the art, and no longer describes in detail here.
Every sheet blade 120 comprises the main body 121 and coating 122 be made up of unlike material.In other words, the material making main body 121 is different with the material making coating 122.Such as, main body 121 is made up of metallic material, then coating 122 can be made of plastics.As shown in Fig. 2, Fig. 3 and Figure 10, at least part of outer surface of main body 121 is wrapped layer 122 and wraps up.Coating 122 can be fish scale shape or feather shape.Thus, effectively can reduce blade 120 flow resistance, raising flow efficiency, absorption or weaken aerodynamic noise, the reflection of reduction noise.
According to the axial-flow windwheel 100 of the embodiment of the present invention, by the coating be made up of different materials 122 is covered at least part of outer surface of main body 121, and coating 122 is in fish scale shape or feather shape, effectively can reduces blade 120 flow resistance, raising flow efficiency, absorption or weaken aerodynamic noise, the reflection of reduction noise.In addition, by suitably changing the material of coating 122, the quality of blade 120 can be alleviated, reduces costs.And, axial-flow windwheel 100 simple and reasonable, be easy to processing, thus expand its using scope.
According to one embodiment of present invention, coating 122 can be located on the positive pressure face 123 of main body 121 and/or the negative pressure face 124 of main body 121.In other words, coating 122 can be located on the positive pressure face 123 of main body 121; Coating 122 also can be located on the negative pressure face 124 of main body 121; Certainly, on the coating 122 positive pressure face 123 that simultaneously can also be located at main body 121 and negative pressure face 124.Thus, blade 120 flow resistance can be reduced further, improve flow efficiency, weaken aerodynamic noise, reduce noise reflection.
Preferably, the thickness of coating 122 can be 0.1-15mm.In example as shown in Figure 2, coating 122 covers on positive pressure face 123.The thickness of coating 122 can refer to the distance in the side in the positive pressure face 123 away from main body 121 of coating 122 and the positive pressure face 123 of main body 121, and the maximum value of this distance is 15mm, and the minimum value of this distance is 0.1mm.Through experimental verification, when the thickness of coating 122 is 0.1-15mm, blade 120 flow resistance can be reduced further, improve flow efficiency, weaken aerodynamic noise, reduce noise reflection.Preferably, wheel hub 110 by radially inner side on the direction of radial outside (such as direction, medial and lateral) as shown in Figure 2, the thickness of coating 122 is thickening or thinning gradually gradually.Thus, wind noise can be reduced further, improve air output and air-out speed.Meanwhile, the quality of blade 120 can also be alleviated, reduce costs.
As shown in Figure 1, coating 122 is laid on the outer surface of main body 121.For convenience of being connected in main body 121 by coating 122, between coating 122 and main body 121, be provided with adhesive layer.Thus, processing is convenient to.Be understandable that, coating 122 is not limited to this with the Placement of main body 121, and such as, as shown in Figure 5-Figure 7, coating 122 can be embedded in the outer surface of main body 121.Thus, the connection reliability of coating 122 and main body 121 can be improved.
Coating 122 can be manufactured by quadric injection mould mode.Thus, the manufacturing procedure of blade 120 can be simplified further, reduce cost of production.Coating 122 can also for the cashmere-planted layer be made up of surperficial flocking.Thus, aerodynamic noise can be absorbed or weaken further, reduce noise reflection.Certainly, the processing technology of coating 122 is not limited to this, and such as, coating 122 can also for the foaming layer of being made by foam process.
Alternatively, as shown in Fig. 1-Fig. 9, coating 122 can be fish scale shape coating, and fish scale shape coating can comprise multiple row scale 1221 side by side successively, and often row scale 1221 comprises the sub-scale 1222 of multi-disc.It should be noted that, every shape of slice, thin piece scale 1222 is similar to the shape of the scale of fish scale, and the sub-scale 1222 of multi-disc is arranged on the outer surface of main body 121 according to certain rule.Fish scale with it can form tiny whirlpool, avoids blade surface and forms larger separation, Shedding Vortex, thus reduce the fluid oscillation burying in oblivion generation, the pressure surge in whirlpool, effectively reduce resistance and the noise of fluid generally; On the other hand, because scale is to the scattering of sound wave, be also conducive to reducing flow noise.From bionics angle, the outer surface of the main body 121 of blade 120 arranges fish scale shape coating can reduce fluid resistance and noise effectively.
As shown in Fig. 1, Fig. 4 and Fig. 5, the multiple sub-scale 1222 often in row scale 1221 is located along the same line.Thus, effectively can reduce blade 120 flow resistance, improve flow efficiency, weaken aerodynamic noise, reduce noise reflection.Certainly, the arrangement mode of the multiple sub-scale 1222 often in row scale 1221 is not limited to this, and such as, as shown in Figure 8 and Figure 9, the multiple sub-scale 1222 in the often row scale 1221 on every a slice blade 120 is positioned on same circle.In other words, the sub-scale 1222 of multi-disc often in row scale 1221 is positioned on a circular arc line.Thus, effectively can reduce blade 120 flow resistance, improve flow efficiency, weaken aerodynamic noise, reduce noise reflection.
Shape for coating 122 does not do particular determination, as long as its can reduce further blade 120 flow resistance, improve flow efficiency, weaken aerodynamic noise, reduce noise reflect, such as, as shown in Figure 10-Figure 11, coating 122 can be feather shape coating, feather shape coating comprises multi-disc suede sheet 1223 side by side successively, and every sheet suede sheet 1223 is almost parallel with the outer periphery of blade 120.Thus, the manufacturing procedure of blade 120 can be simplified further, reduce cost of production.Be understandable that, every sheet suede sheet 1223 extends on the direction of leading edge 127 to the trailing edge 128 of every sheet blade 120.It should be noted that, bird feather with it can form tiny whirlpool, avoid feather surface and form larger separation, Shedding Vortex, thus reduce the fluid oscillation burying in oblivion generation, the pressure surge in whirlpool, effectively reduce resistance and the flight noise of fluid generally; On the other hand, because feather is to the scattering of sound wave and absorption, be also conducive to reducing flow noise.From bionics angle, the outer surface of the main body 121 of blade 120 arranges feather shape coating can reduce gas-flow resistance and noise effectively.
In addition, for alleviating the quality of blade 120 further, reduce cost of production, main body 121 inside can be provided with cavity.Certainly, the shape for main body 121 is not limited to this, and such as, in another example of the present invention, main body 121 can also be formed as skeletal structure; For another example, main body 121 can also be provided with the negative pressure face 124 of penetrating blade 120 and the through hole in positive pressure face 123.Thus, the quality of blade 120 can be alleviated further, reduce cost of production.
According to the axial-flow blower (scheming not shown) of the embodiment of the present invention, comprise axial-flow windwheel 100 as above.
According to the axial-flow blower of the embodiment of the present invention, by the coating be made up of different materials 122 is covered at least part of outer surface of main body 121, and coating 122 is in fish scale shape or feather shape, effectively can reduces blade 120 flow resistance, raising flow efficiency, absorption or weaken aerodynamic noise, the reflection of reduction noise.In addition, by suitably changing the material of coating 122, the quality of blade 120 can be alleviated, reduces costs.And, axial-flow windwheel 100 simple and reasonable, be easy to processing, thus expand its using scope.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (14)
1. an axial-flow windwheel, is characterized in that, comprising:
Wheel hub;
Multiple blade, described multiple blade is distributed on described hub periphery wall along the circumferential direction compartment of terrain of described wheel hub, blade described in every sheet comprises the main body and coating be made up of unlike material, one end of described main body is connected with described wheel hub, at least part of outer surface of described main body is wrapped up by described coating, and described coating is fish scale shape or feather shape.
2. axial-flow windwheel according to claim 1, is characterized in that, on the positive pressure face that described coating is wrapped in described main body and/or negative pressure face.
3. axial-flow windwheel according to claim 1, is characterized in that, the thickness of described coating is 0.1-15mm.
4. axial-flow windwheel according to claim 3, is characterized in that, described wheel hub by radially inner side on the direction of radial outside, the thickness of described coating is thickening or thinning gradually gradually.
5. axial-flow windwheel according to claim 1, is characterized in that, described coating is laid on the outer surface of described main body, is provided with adhesive layer between described coating and described main body.
6. axial-flow windwheel according to claim 1, is characterized in that, described coating is embedded in the outer surface of described main body.
7. axial-flow windwheel according to claim 1, is characterized in that, described coating is manufactured by quadric injection mould mode.
8. axial-flow windwheel according to claim 1, is characterized in that, described body interior is provided with cavity.
9. axial-flow windwheel according to claim 1, is characterized in that, described main body is skeletal structure.
10. the axial-flow windwheel according to any one of claim 1-9, is characterized in that, described coating is fish scale shape coating, and described fish scale shape coating comprises multiple row scale side by side successively, often arranges described scale and comprises the sub-scale of multi-disc.
11. axial-flow windwheels according to claim 10, is characterized in that, the multiple described sub-scale often arranged in described scale is located along the same line.
12. axial-flow windwheels according to claim 10, is characterized in that, the multiple described sub-scale often arranged in described scale is positioned on same circle.
13. axial-flow windwheels according to any one of claim 1-9, it is characterized in that, described coating is feather shape coating, and described feather shape coating comprises multi-disc suede sheet side by side successively, and described in every sheet, the outer periphery of suede sheet and described blade are almost parallel.
14. 1 kinds of axial-flow blowers, is characterized in that, comprise the axial-flow windwheel according to any one of claim 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410856453.4A CN104564819A (en) | 2014-12-31 | 2014-12-31 | Axial flow wind wheel and axial flow fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410856453.4A CN104564819A (en) | 2014-12-31 | 2014-12-31 | Axial flow wind wheel and axial flow fan with same |
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| Publication Number | Publication Date |
|---|---|
| CN104564819A true CN104564819A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410856453.4A Pending CN104564819A (en) | 2014-12-31 | 2014-12-31 | Axial flow wind wheel and axial flow fan with same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167224A (en) * | 2017-12-27 | 2018-06-15 | 泛仕达机电股份有限公司 | It is a kind of that the blade of multilayer denoising structure and the fan including the blade are set |
| CN112879343A (en) * | 2019-11-29 | 2021-06-01 | 中国航发商用航空发动机有限责任公司 | Aircraft engine blade and aircraft engine |
| CN114033722A (en) * | 2021-11-04 | 2022-02-11 | 国网湖南省电力有限公司 | Surface sound absorption and trailing edge noise reduction fan and preparation method thereof |
| US20230184259A1 (en) * | 2021-12-14 | 2023-06-15 | Giga-Byte Technology Co., Ltd. | Fan device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108167224A (en) * | 2017-12-27 | 2018-06-15 | 泛仕达机电股份有限公司 | It is a kind of that the blade of multilayer denoising structure and the fan including the blade are set |
| CN112879343A (en) * | 2019-11-29 | 2021-06-01 | 中国航发商用航空发动机有限责任公司 | Aircraft engine blade and aircraft engine |
| CN114033722A (en) * | 2021-11-04 | 2022-02-11 | 国网湖南省电力有限公司 | Surface sound absorption and trailing edge noise reduction fan and preparation method thereof |
| US20230184259A1 (en) * | 2021-12-14 | 2023-06-15 | Giga-Byte Technology Co., Ltd. | Fan device |
| US11994146B2 (en) * | 2021-12-14 | 2024-05-28 | Giga-Byte Technology Co., Ltd. | Fan device |
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