CN204553335U - A kind of novel axial-flow leaf - Google Patents
A kind of novel axial-flow leaf Download PDFInfo
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- CN204553335U CN204553335U CN201520142784.1U CN201520142784U CN204553335U CN 204553335 U CN204553335 U CN 204553335U CN 201520142784 U CN201520142784 U CN 201520142784U CN 204553335 U CN204553335 U CN 204553335U
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Abstract
Novel axial-flow leaf described in the utility model, comprise wheel hub, be arranged at multiple blades of hub periphery, be characterized in the rear edge of described each blade outside exhaust outlet being made with three for upsetting the indent arc structure of air-flow shedding frequence, and these three indent arc structures are from outside to inside in ratio arrangement from big to small.The utility model has been made three indent arc structures of arranging from big to small owing to adopting, has been made it in use in the rear edge of its exhaust outlet outer leafs, indent arc structure due to blade rear edge makes the shedding frequence of air-flow inconsistent, thus effectively reduce fan blade operation noise, simultaneously, This arrangement reduces the suction surface flow separation near hub positions, and high energy air-flow supplements suction surface low speed flow on pressure side, be conducive to the total pressure efficiency promoting fan blade.
Description
Technical field
The utility model relates to appliance field, particularly a kind of novel axial-flow leaf of air conditioner outdoor machine.
Background technique
The axial-flow leaf of air conditioner outdoor machine is primarily of wheel hub and blade composition, and wherein wheel hub is provided with axis hole.As shown in Figure 3, because the rear edge (21 ＇) outside blade (2 ＇) its exhaust outlet of existing axial-flow leaf is mostly linear structure, air-flow at the process middle outlet of coming off also in line, the shedding frequence of air-flow can be made like this in certain operating mode consistent, therefore noise is comparatively large, and comparatively chaotic near hub positions air-flow, and suction surface easily produces flow separation, thus affect total pressure efficiency, be difficult to the requirement meeting vast manufacturer.
Summary of the invention
The purpose of this utility model is for above-mentioned existing problems and deficiency, provides one can effectively reduce fan blade and runs noise, can improve again the total pressure efficiency of fan blade, and structure simple, process easy novel axial-flow leaf.
The technical solution of the utility model is achieved in that
Novel axial-flow leaf described in the utility model, comprise wheel hub, be arranged at multiple blades of hub periphery, be characterized in the rear edge of described each blade outside exhaust outlet being made with three for upsetting the indent arc structure of air-flow shedding frequence, and these three indent arc structures are from outside to inside in ratio arrangement from big to small.
For further reaching the effect reducing noise, the outer end edge of above-mentioned blade rear edge extends back and forms the little guide vane structure of trailing edge.
Superpose convenient in transportation process for making the utility model and structure is reliable, the head end of above-mentioned wheel hub makes the socket plush copper that external diameter is slightly smaller than or equals wheel hub back end inside diameter, and wheelboss side wall is provided with indent draw-in groove between wheel hub head end and the blade root of blade, the rear end of described wheel hub is correspondingly provided with and can sets the card convex of position with described indent draw-in groove engagement sleeves.
The utility model has done three interior concave circular arc process owing to adopting in the rear edge of its exhaust outlet outer leafs, and make interior concave circular arc from outside to inside in ratio arrangement from big to small, make it in use, indent arc structure due to blade rear edge makes the shedding frequence of air-flow inconsistent, thus effectively reduce fan blade operation noise, simultaneously, This arrangement reduces the suction surface flow separation near hub positions, and high energy air-flow supplements suction surface low speed flow on pressure side, thus improve the total pressure efficiency of fan blade, efficiently solve the problems such as the comparatively large and total pressure efficiency of noise when existing axial-flow leaf runs is not high.The utility model structure is simple, reliable, noise is low, and can improve the total pressure efficiency of fan blade, can be widely used in various air conditioning appliance field.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the perspective view of Fig. 1.
Fig. 3 is the structural representation of existing axial-flow leaf.
Embodiment
As Figure 1-Figure 2, the utility model axial-flow leaf, comprise wheel hub 1, be arranged at multiple blades 2 of wheel hub 1 periphery, noise is run in order to effectively reduce fan blade, the rear edge of described each blade 2 outside exhaust outlet is made with three for upsetting the indent arc structure 21,22,23 of air-flow shedding frequence, and these three interior concave circular arc 21,22,23 structures are from outside to inside in ratio arrangement from big to small.In use, because antemarginal three the indent arc structures 21,22,23 of blade 2 make the shedding frequence of air-flow inconsistent, thus effectively reduce fan blade operation noise, simultaneously, This arrangement reduces the suction surface flow separation near wheel hub 1 position, and high energy air-flow supplements suction surface low speed flow on pressure side, thus improve the total pressure efficiency of fan blade.For making using effect of the present utility model more excellent, the rear edge of above-mentioned each blade 2 outside exhaust outlet is the ripple type limit with above-mentioned three indent arc structures 21,22,23.Certain the utility model also can adopt the indent arc structure doing more than three in the rear edge of blade 2, and just doing three is preferred version.For further reaching the effect reducing noise, the antemarginal outer end edge of above-mentioned blade 2 extends back and forms the little guide vane structure 24 of trailing edge.Superpose convenient in transportation process for making the utility model and structure is reliable, the head end of above-mentioned wheel hub 1 makes the socket plush copper 11 that external diameter is slightly smaller than or equals wheel hub 1 back end inside diameter, and wheel hub 1 sidewall is provided with indent draw-in groove 3 between wheel hub 1 head end and the blade root 25 of blade 2, the rear end of described wheel hub 1 is correspondingly provided with and can sets the card convex 4 of position with described indent draw-in groove 3 engagement sleeves.Like this when transporting superposition, head end by second axial-flow leaf is set in the tail end of first axial-flow leaf, make the card convex 4 of first axial-flow leaf tail end be plugged in the indent draw-in groove 3 li of second axial-flow leaf wheelboss side wall simultaneously, the reliable closed assembly of two axial flow fan blade can be realized, can not relatively rotate and damaged blade and obscission, ensure that the quality of fan blade.The utility model structure is simple, reliable, noise is low, and can improve the total pressure efficiency of fan blade, can be widely used in various air conditioning appliance field.
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. a novel axial-flow leaf, comprise wheel hub (1), be arranged at multiple blades (2) of wheel hub (1) periphery, it is characterized in that the rear edge of described each blade (2) outside exhaust outlet being made with three for upsetting the indent arc structure (21,22,23) of air-flow shedding frequence, and this three interior concave circular arcs (21,22,23) structure is from outside to inside in ratio arrangement from big to small.
2. axial-flow leaf according to claim 1, is characterized in that the rear edge of above-mentioned each blade (2) outside exhaust outlet is for having the ripple type limit of above-mentioned three indent arc structures (21,22,23).
3. axial-flow leaf according to claim 1 and 2, is characterized in that above-mentioned blade (2) antemarginal outer end edge extends back and forms the little guide vane structure of trailing edge (24).
4. axial-flow leaf according to claim 1, it is characterized in that the socket plush copper (11) that the head end of above-mentioned wheel hub (1) is made external diameter and is slightly smaller than or equals wheel hub (1) back end inside diameter, and being provided with indent draw-in groove (3) between the blade root (25) wheel hub (1) sidewall being positioned at wheel hub (1) head end and blade (2), the rear end of described wheel hub (1) is correspondingly provided with and can sets the card convex (4) of position with described indent draw-in groove (3) engagement sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520142784.1U CN204553335U (en) | 2015-03-13 | 2015-03-13 | A kind of novel axial-flow leaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520142784.1U CN204553335U (en) | 2015-03-13 | 2015-03-13 | A kind of novel axial-flow leaf |
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| Publication Number | Publication Date |
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| CN204553335U true CN204553335U (en) | 2015-08-12 |
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| CN201520142784.1U Active CN204553335U (en) | 2015-03-13 | 2015-03-13 | A kind of novel axial-flow leaf |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105658038A (en) * | 2016-03-18 | 2016-06-08 | 联想(北京)有限公司 | Radiating device and electronic equipment |
| CN106286389A (en) * | 2016-09-23 | 2017-01-04 | 广东顺威精密塑料股份有限公司 | A kind of can the fixing axial-flow leaf of tow sides superposition |
| 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 |
-
2015
- 2015-03-13 CN CN201520142784.1U patent/CN204553335U/en active Active
Cited By (6)
| 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 |
| CN108291559B (en) * | 2015-11-30 | 2021-07-13 | 三星电子株式会社 | Air blowing fan and air conditioner with same |
| CN105658038A (en) * | 2016-03-18 | 2016-06-08 | 联想(北京)有限公司 | Radiating device and electronic equipment |
| CN106286389A (en) * | 2016-09-23 | 2017-01-04 | 广东顺威精密塑料股份有限公司 | A kind of can the fixing axial-flow leaf of tow sides superposition |
| CN106286389B (en) * | 2016-09-23 | 2019-05-10 | 广东顺威精密塑料股份有限公司 | It is a kind of can the fixed axial-flow leaf of tow sides superposition |
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