CN204716616U - A kind of highly effective low noise axial-flow windwheel of air conditioner outdoor machine - Google Patents
A kind of highly effective low noise axial-flow windwheel of air conditioner outdoor machine Download PDFInfo
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- CN204716616U CN204716616U CN201520409893.5U CN201520409893U CN204716616U CN 204716616 U CN204716616 U CN 204716616U CN 201520409893 U CN201520409893 U CN 201520409893U CN 204716616 U CN204716616 U CN 204716616U
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Abstract
The highly effective low noise axial-flow windwheel of air conditioner outdoor machine described in the utility model, comprise wheel hub, the flabellum be positioned on wheel hub, the trailing edge of described flabellum is provided with the little stator of the trailing edge extended back, and is characterized in: in the little stator of described trailing edge, edge is hierarchic structure or tooth limit structure or ripple struction.The original straight flange architecture advances of cause in the little stator of existing wind wheel flabellum trailing edge to be become hierarchic structure or tooth limit structure or ripple struction owing to adopting by the utility model, thus make axial-flow windwheel in the process used, the little guide vane structure of trailing edge not only by increasing, vortex shedding structure is made to create the time difference, reduce Shedding Vortex noise, and the ladder of edge or tooth limit or ripple struction in little stator, effectively reduce the speed difference of airspeed and trailing edge outlet air flow velocity inside little stator, therefore, it is possible on the basis of linear structure, improve the performance of wind wheel further.
Description
Technical field
The utility model relates to field of air conditioning, especially a kind of highly effective low noise axial-flow windwheel of air conditioner outdoor machine.
Background technique
The structure of the axial-flow windwheel of existing air conditioner outdoor machine, mostly comprise wheel hub, be positioned at the flabellum on wheel hub, flabellum is by leading edge, trailing edge and outer rim composition, and flabellum trailing edge is single curved-surface structure, air-flow is through flabellum leading edge, by the acting on flabellum blade face, flow out from trailing edge position, create two kinds of effects: (1) pressure side airspeed is high, suction surface airspeed is low, the difference of both flow velocitys causes jet tail, this tail is to downstream fixed element, as grid, cause impact loss, on the other hand, in tail different in flow rate air-flow between mutually blending, create frictional loss and losses by mixture, be unfavorable for energy-conservation, (2) blade trailing edge creates Vortex Shedding, and vortex shedding frequency makes flabellum downstream fixed element surface create strong alternate pulsation along the radially-arranged conformity of flabellum, thus creates strong interaction noise.Someone adopts and arrange the little guide vane structure of trailing edge on the trailing edge of flabellum for this reason, as shown in Figure 2, flabellum trailing edge vortex shedding frequency is radially distributed generation difference, i.e. being out of step of vortex shedding frequency, thus make the noise source on downstream fixed element surface produce phase difference to extraradial noise, reach the effect of offsetting part acoustic energy, thus reach the object reducing overall noise.But because in the little stator of its trailing edge, edge makes straight flange structure, inside the little stator of linear structure, airspeed and trailing edge outlet air flow velocity difference are comparatively large, both are mixed mutually creates flow separation, is unfavorable for energy-conservation with reduction noise, so need to improve further.
Summary of the invention
The purpose of this utility model is for above-mentioned existing problems and deficiency, provides one can play Noise Reduction and energy-saving effect larger, improves the advantage of wind wheel performance, and the highly effective low noise axial-flow windwheel of the simple air conditioner outdoor machine of structure.
The technical solution of the utility model is achieved in that
The highly effective low noise axial-flow windwheel of air conditioner outdoor machine described in the utility model, comprise wheel hub, the flabellum be positioned on wheel hub, the trailing edge of described flabellum is provided with the little stator of the trailing edge extended back, and is characterized in: in the little stator of described trailing edge, edge is hierarchic structure or tooth limit structure or ripple struction.
Preferred version is the hierarchic structure with a step or multiple continuous step.
The original straight flange architecture advances of cause in the little stator of existing flabellum trailing edge to be become hierarchic structure or tooth limit structure or ripple struction owing to adopting by the utility model, thus make it in the process used, the little guide vane structure of trailing edge not only by increasing, vortex shedding structure is made to create the time difference, reduce Shedding Vortex noise, and the ladder of edge or tooth limit or ripple struction in little stator, effectively reduce the speed difference of airspeed and trailing edge outlet air flow velocity inside little stator, therefore, it is possible on the basis of linear structure, improve the performance of wind wheel further.The blade structure of briefly this improvement plays larger advantage this effect, more can embody compared with linear structure the advantage that noise is little and wind wheel performance is good.And the utility model structure is simple, it is simple and easy to process, and can be widely used on various air-conditioning.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of prior art.
Embodiment
As shown in Figure 1, the highly effective low noise axial-flow windwheel of air conditioner outdoor machine described in the utility model, comprise wheel hub 1, the flabellum 2 be positioned on wheel hub 1, the trailing edge 21 of described flabellum 2 is provided with the little stator 3 of the trailing edge extended back, for further improving the performance of wind wheel, in the little stator 3 of described trailing edge, edge 31 is hierarchic structure or tooth limit structure or ripple struction.Preferred version is the hierarchic structure with a step or multiple continuous step.The utility model is in the process used, trailing edge little stator 3 structure not only by increasing, vortex shedding structure is made to create the time difference, reduce Shedding Vortex noise, and the ladder of the little stator of trailing edge 3 li of edge or tooth limit or ripple struction, effectively reduce the speed difference of airspeed and trailing edge outlet air flow velocity inside little stator, therefore, it is possible on the basis of linear structure, improve the performance of wind wheel further.Wherein the little stator of above-mentioned trailing edge 3 is pre-large post-small blade structure, and the outer rim 32 of the little stator of this trailing edge 3 is circular arc or bias type structure oblique inwards.For further guaranteeing its using effect, the little stator of above-mentioned trailing edge 3 is integrally formed at the outer end position of above-mentioned flabellum trailing edge 21 or close outer end position.The utility model structure is simple, it is simple and easy to process, and performance is good, can be widely used on various air-conditioning.
Be below the experiment contrast table of prior art wind wheel as Fig. 2 and wind wheel described in the utility model (as Fig. 1):
Table 1 prior art compares with the experiment of the utility model technology (new technology)
| Scheme | Noise (dB) | Air quantity (m 3/h) | Rotating speed (r/min) | Power (W) |
| Prior art | 48.5 | 1630 | 890 | 50 |
| New technology | 47.5 | 1633 | 892 | 50 |
Obviously can find out from above-mentioned table, when Same Efficieney, new technology more can embody that noise is little, air quantity is large, the advantage that performance is good.
Although the utility model describes with reference to specific embodiment, this description not meaning that is construed as limiting the utility model.With reference to description of the present utility model, other changes of the disclosed embodiments, all can expect for those skilled in the art, this change should belong in appended claims limited range.
Claims (4)
1. the highly effective low noise axial-flow windwheel of an air conditioner outdoor machine, comprise wheel hub (1), the flabellum (2) be positioned on wheel hub (1), the trailing edge (21) of described flabellum (2) is provided with the little stator of the trailing edge extended back (3), it is characterized in that: the little stator of described trailing edge (3) inner edge (31) is hierarchic structure or tooth limit structure or ripple struction.
2. axial-flow windwheel according to claim 1, is characterized in that the little stator of above-mentioned trailing edge (3) inner edge (31) has a step or multiple continuous step.
3. axial-flow windwheel according to claim 1 and 2, is characterized in that the little stator of above-mentioned trailing edge (3) is for pre-large post-small blade structure, and the outer rim (32) of the little stator of this trailing edge (3) is circular arc or bias type structure oblique inwards.
4. axial-flow windwheel according to claim 1, is characterized in that: the little stator of above-mentioned trailing edge (3) is integrally formed at the outer end position of above-mentioned flabellum trailing edge (21) or close outer end position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409893.5U CN204716616U (en) | 2015-06-15 | 2015-06-15 | A kind of highly effective low noise axial-flow windwheel of air conditioner outdoor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520409893.5U CN204716616U (en) | 2015-06-15 | 2015-06-15 | A kind of highly effective low noise axial-flow windwheel of air conditioner outdoor machine |
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| CN204716616U true CN204716616U (en) | 2015-10-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291559A (en) * | 2015-11-30 | 2018-07-17 | 三星电子株式会社 | Blower fan and air-conditioning with the blower fan |
| CN108386384A (en) * | 2018-02-12 | 2018-08-10 | 中山宜必思科技有限公司 | A kind of axial flow blower of axial-flow windwheel and its application |
| CN113167291A (en) * | 2018-11-30 | 2021-07-23 | 富士通将军股份有限公司 | Propeller fan |
| CN114165478A (en) * | 2021-11-04 | 2022-03-11 | 华中科技大学 | Bionic axial flow fan blade and modification method thereof |
-
2015
- 2015-06-15 CN CN201520409893.5U patent/CN204716616U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291559A (en) * | 2015-11-30 | 2018-07-17 | 三星电子株式会社 | Blower fan and air-conditioning with the blower fan |
| US11041506B2 (en) | 2015-11-30 | 2021-06-22 | Samsung Electronics Co., Ltd. | Blower fan and air conditioner having same |
| CN108386384A (en) * | 2018-02-12 | 2018-08-10 | 中山宜必思科技有限公司 | A kind of axial flow blower of axial-flow windwheel and its application |
| CN113167291A (en) * | 2018-11-30 | 2021-07-23 | 富士通将军股份有限公司 | Propeller fan |
| CN114165478A (en) * | 2021-11-04 | 2022-03-11 | 华中科技大学 | Bionic axial flow fan blade and modification method thereof |
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