CN205533411U - Blade of centrifugation fan blade - Google Patents
Blade of centrifugation fan blade Download PDFInfo
- Publication number
- CN205533411U CN205533411U CN201620031326.5U CN201620031326U CN205533411U CN 205533411 U CN205533411 U CN 205533411U CN 201620031326 U CN201620031326 U CN 201620031326U CN 205533411 U CN205533411 U CN 205533411U
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- China
- Prior art keywords
- blade
- edge face
- acute angle
- face
- leading edge
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Abstract
The utility model discloses a blade of centrifugation fan blade, including the blade body, the blade body including concave reason face, flange face, leading edge face and trailing edge face, the leading edge face near centrifugal fan blade wheel hub edge, the trailing edge face to centrifugal fan blade wheel hub center, concave reason face use the wheel hub center to be clockwise setting as the axle center, the flange face is handed over with leading edge face and trailing edge facial features respectively, the flange face is preceding acute angle a with the acute angle that the leading edge face pressed from both sides, the flange face is back acute angle b with the acute angle that the trailing edge face pressed from both sides. The utility model has the advantages of it is following and effect: that adopts the acute angle sets up the reduction windage, improves the intake to improve the air output of centrifugal fan blade, reduce the energy consumption.
Description
Technical field
This utility model relates to the parts of a kind of air powered equipment, particularly to the blade of a kind of centrifugation blade.
Background technology
Centrifugal wind wheel refers to air inlet through hollow shaft, radially air-out, utilizes centrifugal force (depending on rotating speed and external diameter) to act on, makes the wind wheel that air improves.By being installed in air-conditioner, move air through heat exchanger by centrifugation blade, and then make air-flow and the coolant in heat exchanger carry out heat alternately, thus reach refrigeration or the effect heated.
At present, there is the Chinese patent of a Application No. 200620067862.7 in market, a kind of leaf blade of this patent disclosure, its blade includes concave edge face, flange surface, leading edge face and rear surface, wherein, flange surface includes that radius is tri-sections of circular arcs of R1, R2, R3, and the ratio of R1, R2, R3 is about 15:5:3.
This patent can be only achieved the air quantity needed for air-conditioning by improving rotating speed by using the structure of the blade of novel centrifugation blade to solve conventional air-conditioner, thus the requirement of heat exchange could be met, improve the problem that energy consumption is too high.But the structure of the blade of this centrifugation blade not yet can arrive preferably optimization, energy consumption is also at the at a relatively high stage, needs to improve blade further.
Utility model content
The purpose of this utility model is to provide the blade of a kind of centrifugation blade, including blade body, described blade body includes concave edge face, flange surface, leading edge face and rear surface, described leading edge faces against centrifugation blade hub edge, described rear surface is towards centrifugation blade wheel hub center, described concave edge face is arranged with hub centre for axle center in clockwise, described flange surface intersects with leading edge face and rear surface respectively, described flange surface is front acute angle a with the acute angle folded by leading edge face, and described flange surface is rear acute angle b with the acute angle folded by rear surface.
By using technique scheme, wind enters from leading edge face, by concave edge face, then is focused on by rear surface in the wheel hub limited boundary of centrifugal blower.Leading edge face uses the setting of front acute angle a, can reduce windage, improves intake.The setting of acute angle b after rear surface employing, also for reducing windage, can reduce the loss by the air quantity in concave edge face entrance wheel hub limited boundary, improve the air quantity in centrifugation blade further, thus improve the work efficiency of centrifugation blade, reduction energy consumption.
Further, described leading edge face length degree is less than rear surface length.
By using technique scheme, in the case of vane thickness is constant, reducing the length in leading edge face, add the length in concave edge face, increase concave edge face crosses wind area, can increase intake.
Further, described front acute angle a is less than rear acute angle b.
By using technique scheme, using front acute angle a less than the setting of rear acute angle b, preferred acute angle a is 16 °, and preferred acute angle b Russia is 26 °, is more than the setting of rear end in vane nose, reduces windage further, can cross increase air intake ability, raising intake.
Further, the curvature in described concave edge face is more than the curvature of flange surface.
By using technique scheme, by the curvature that employing concave edge face is different from flange surface, thus increase the thickness of blade, increase the performance that can bear blast, and increase intake.The curvature in concave edge face increases, and increased wind area, thus increases intake.To sum up improve the work efficiency of centrifugation blade, save the loss of the energy.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of centrifugation blade；
Fig. 2 is the top view of blade.
In figure: 1, wheel hub；2, blade body；3, concave edge face；4, flange surface；5, leading edge face；6, rear surface；7, front acute angle a；8, rear acute angle b.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
As shown in Figure 2, a kind of blade of centrifugation blade, including blade body 2, described blade body 2 includes concave edge face 3, flange surface 4, leading edge face 5 and rear surface 6, described leading edge face 5 is towards against centrifugation blade wheel hub 1 edge, described rear surface 6 is towards centrifugation blade wheel hub 1 center, described concave edge face 3 is arranged in clockwise with wheel hub 1 center for axle center, described flange surface 4 intersects with leading edge face 5 and rear surface 6 respectively, described flange surface 4 is front acute angle a7 with the acute angle folded by leading edge face 5, and described flange surface 4 is rear acute angle b8 with the acute angle folded by rear surface 6.Wind enters from leading edge face 5, by concave edge face 3, then is focused on by rear surface 6 in wheel hub 1 limited boundary of centrifugal blower.Leading edge face 5 uses the setting of front acute angle a7, can reduce windage, improves intake.Rear surface 6 use after the setting of acute angle b8, also for reducing windage, the loss being entered air quantity in wheel hub 1 limited boundary by concave edge face 3 can be reduced, improve the air quantity in centrifugation blade further, thus improve the work efficiency of centrifugation blade, reduce energy consumption.Described leading edge face 5 length is less than rear surface 6 length.In the case of vane thickness is constant, reducing the length in leading edge face 5, add the length in concave edge face 3, increase concave edge face 3 crosses wind area, can increase intake.Described front acute angle a7 is less than rear acute angle b8.Using the front acute angle a7 setting less than rear acute angle b8, preferred acute angle a7 is 16 °, and preferred acute angle b8 is 26 °, in vane nose more than the setting of rear end, reduces windage further, can cross increase air intake ability, improves intake.The curvature in described concave edge face 3 is more than the curvature of flange surface 4.By the curvature that employing concave edge face 3 is different from flange surface 4, thus increase the thickness of blade, increase the performance that can bear blast, and increase intake.The curvature in concave edge face 3 increases, and increased wind area, thus increases intake.To sum up improve the work efficiency of centrifugation blade, save the loss of the energy.This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (4)
1. the blade of a centrifugation blade, including blade body, described blade body includes concave edge face, flange surface, leading edge face and rear surface, described leading edge faces against centrifugation blade hub edge, described rear surface is towards centrifugation blade wheel hub center, described concave edge face is arranged with hub centre for axle center in clockwise, it is characterized in that: described flange surface intersects with leading edge face and rear surface respectively, described flange surface is front acute angle a with the acute angle folded by leading edge face, and described flange surface is rear acute angle b with the acute angle folded by rear surface.
The blade of a kind of centrifugation blade the most according to claim 1, it is characterised in that: described leading edge face length degree is less than rear surface length.
The blade of a kind of centrifugation blade the most according to claim 1, it is characterised in that: described front acute angle a is less than rear acute angle b.
The blade of a kind of centrifugation blade the most according to claim 1, it is characterised in that: the curvature in described concave edge face is more than the curvature of flange surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031326.5U CN205533411U (en) | 2016-01-13 | 2016-01-13 | Blade of centrifugation fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031326.5U CN205533411U (en) | 2016-01-13 | 2016-01-13 | Blade of centrifugation fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533411U true CN205533411U (en) | 2016-08-31 |
Family
ID=56764903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620031326.5U Expired - Fee Related CN205533411U (en) | 2016-01-13 | 2016-01-13 | Blade of centrifugation fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640755A (en) * | 2017-01-13 | 2017-05-10 | 苏州弗来特金属制品有限公司 | Small-sized impeller for air suction of small and medium-sized direct current motors |
-
2016
- 2016-01-13 CN CN201620031326.5U patent/CN205533411U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640755A (en) * | 2017-01-13 | 2017-05-10 | 苏州弗来特金属制品有限公司 | Small-sized impeller for air suction of small and medium-sized direct current motors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20190113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |