CN207161381U - Aerofoil fan - Google Patents
Aerofoil fan Download PDFInfo
- Publication number
- CN207161381U CN207161381U CN201720844292.6U CN201720844292U CN207161381U CN 207161381 U CN207161381 U CN 207161381U CN 201720844292 U CN201720844292 U CN 201720844292U CN 207161381 U CN207161381 U CN 207161381U
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- CN
- China
- Prior art keywords
- characteristic cross
- sections
- outer ring
- wheel hub
- flabellum
- 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.)
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- 241000883990 Flabellum Species 0.000 claims abstract description 40
- 230000005484 gravity Effects 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model is related to aerofoil fan, including wheel hub, flabellum and outer ring, including seven flabellums, flabellum is LS aerofoil profiles, the blade roots of seven flabellums it is uniform be connected to hub periphery face, seven flabellum leaf tops connect outer ring inwalls；Flabellum is coincided by five characteristic cross-sections and formed, and five characteristic cross-sections are distributed on five concentric circles from hub centre to outer ring, and five concentric radius of circles are followed successively by：R1=84.91mm, r2=132.31mm, r3=166.76mm, r4=195.20mm, r5=220mm；The center of gravity of characteristic cross-section accumulates superimposing thread：Y=7.363x3+0.157x2‑0.00109x‑74.062；In addition with parameters such as the chord length of five characteristic cross-sections, thickness, established angles.This aerofoil fan, to flabellum quantity, shape optimizes design, compared to existing fan, under equal conditions, can provide bigger air quantity, and noise is lower.
Description
Technical field
It the utility model is related to a kind of aerofoil fan.
Background technology
Aerofoil fan is common ventilation equipment, and motor driven fan blows out wind direction parallel to axial direction, axial flow fan structure
Substantially the wheel hub at middle part, and the flabellum of wheel hub side face are all included.
Different according to fan application environment, wheel hub may be provided with the flabellum of three or more, outside the flabellum of some fans
Enclose and be additionally provided with outer ring, outer ring links into an integrated entity all flabellums.
Although existing aerofoil fan all has basic air-out function, because flabellum design is different, under equal conditions
Caused air quantity, noise difference are very big, and Wind Volume, low noise are pursuing a goal for industry.
Utility model content
Technical problem to be solved in the utility model is：A kind of aerofoil fan is provided, optimizes flabellum shape, makes its tool
There is bigger air quantity, and noise is lower.
Technical scheme is used by the utility model solves its technical problem：
Aerofoil fan, including wheel hub, flabellum and outer ring, in cylinder, outer ring is annulus shape for wheel hub periphery, outside wheel hub
Footpath is 169.84mm, and outer ring internal diameter is 440mm, and wheel hub is identical with outer ring axis, and wheel hub is located at outer ring side face periphery, including seven
The individual flabellum, flabellum are LS aerofoil profiles, the blade roots of seven flabellums it is uniform be connected to hub periphery face, seven flabellum leaf tops connections
Outer ring inwall；
The flabellum is coincided by five characteristic cross-sections and formed, and five characteristic cross-sections are distributed in five from hub centre to outer ring
On individual concentric circles, and five concentric radius of circles from inside to outside are followed successively by：
R1=84.91mm, r2=132.31mm, r3=166.76mm, r4=195.20mm, r5=220mm；
The center of gravity product superimposing thread of five characteristic cross-sections is shaped as：
Y=-7.363x3+0.157x2-0.00109x-74.062；
Wherein, near the characteristic cross-section center of gravity x=2.9637 of hub centre, five characteristic cross-sections in five characteristic cross-sections
In farthest away from hub centre characteristic cross-section center of gravity x=75.2444；And plane where center of gravity product superimposing thread is hung down with hub periphery face
Directly；
The chord length of five characteristic cross-sections from inside to outside is followed successively by：
B1=62.6mm, b2=70.4mm, b3=76mm, b4=84.7mm, b5=86.6mm；
The thickness of five characteristic cross-sections from inside to outside is followed successively by：
C1=4.132mm, c2=3.935mm, c3=3.732mm, c4=3.532mm, c5=3.325mm；
The established angle of five characteristic cross-sections from inside to outside is followed successively by：
T1=23.74 °, t2=22.61 °, t3=21.61 °, t4=20.70 °, t5=20.33 °.
Further, the wheel hub is the cylindrical housings of one end open；The outer ring thickness is 1.5~1.9mm.
The beneficial effects of the utility model are：This aerofoil fan, to flabellum quantity, shape optimizes design, compared to existing
There is fan, under equal conditions, bigger air quantity can be provided, and noise is lower.
Brief description of the drawings
Fig. 1 is the schematic top plan view of the utility model aerofoil fan；
Fig. 2 is the characteristic cross-section distribution schematic diagram of the utility model aerofoil fan；
Fig. 3~Fig. 7 is the characteristic cross-section schematic diagram of the utility model aerofoil fan, and Fig. 3 to Fig. 7 characteristic cross-section, according to
R1 to r5 characteristic cross-section in secondary corresponding diagram 2；
Reference is in figure：Wheel hub 1, flabellum 2, outer ring 3, characteristic cross-section 4, center of gravity product superimposing thread 5.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples：
Aerofoil fan, including wheel hub 1, flabellum 2 and outer ring 3, the periphery of wheel hub 1 is in cylinder, and outer ring 3 is annulus shape,
The external diameter of wheel hub 1 is 169.84mm, and the internal diameter of outer ring 3 is 440mm, and wheel hub 1 is identical with the axis of outer ring 3, and wheel hub 1 is located at outer ring 3 weeks
Face periphery, including seven flabellums 2, flabellum 2 be LS aerofoil profiles, the blade roots of seven flabellums 2 uniformly be connected to the periphery of wheel hub 1
Face, seven leaf tops of flabellum 2 connect the inwall of outer ring 3；
The flabellum 2 is coincided by five characteristic cross-sections 4 and formed, and five characteristic cross-sections 4 are distributed in from the center of wheel hub 1 to outer ring
On 3 five concentric circles, and five concentric radius of circles from inside to outside are followed successively by：
R1=84.91mm, r2=132.31mm, r3=166.76mm, r4=195.20mm, r5=220mm；
The center of gravity product superimposing thread 5 of five characteristic cross-sections 4 is shaped as：
Y=-7.363x3+0.157x2-0.00109x-74.062；
Wherein, cut in five characteristic cross-sections 4 near the characteristic cross-section center of gravity x=2.9637 at the center of wheel hub 1, five features
Farthest away from the characteristic cross-section center of gravity x=75.2444 at the center of wheel hub 1 in face 4；And the center of gravity product place plane of superimposing thread 5 and the periphery of wheel hub 1
Face is vertical；
The chord length of five characteristic cross-sections 4 from inside to outside is followed successively by：
B1=62.6mm, b2=70.4mm, b3=76mm, b4=84.7mm, b5=86.6mm；
The thickness of five characteristic cross-sections 4 from inside to outside is followed successively by：
C1=4.132mm, c2=3.935mm, c3=3.732mm, c4=3.532mm, c5=3.325mm；
The established angle of five characteristic cross-sections 4 from inside to outside is followed successively by：
T1=23.74 °, t2=22.61 °, t3=21.61 °, t4=20.70 °, t5=20.33 °.
As shown in Figure 1：This aerofoil fan, wheel hub 1 are provided with seven flabellums 2, and seven flabellums 2 are evenly distributed on wheel hub 1 week
Face periphery, all flabellums 2 are with the axle center of wheel hub 1 rotational symmetry.
Flabellum is shaped as LS aerofoil profiles, is《Ventilation blower practical technique handbook》- second edition-business Jingtai-mechanical industry is published
Society's in August, -2011 is published, alleged LS aerofoil profiles.
The parameters such as flabellum shape, flabellum quantity, fan dimension are optimized, its external diameter of wheel hub 1 is 169.84mm, in outer ring 3
Footpath is 440mm.
Flabellum 2 is coincided by five characteristic cross-sections 4 and formed, and such as Fig. 3~Fig. 7, for the schematic shapes of five characteristic cross-sections, is schemed
3~Fig. 7 five characteristic cross-sections are corresponding in turn to the characteristic cross-section 4 on five concentric circles of r1~r5 shown in Fig. 2.
Such as on the cylindrical shape face in characteristic cross-section corresponding diagram shown in Fig. 32 where r1 concentric circles；
On cylindrical shape face in characteristic cross-section corresponding diagram shown in Fig. 42 where r2 concentric circles；
On cylindrical shape face in characteristic cross-section corresponding diagram shown in Fig. 52 where r3 concentric circles, by that analogy.
From inside to outside five concentric radius of circles shown in Fig. 2 are followed successively by：
R1=84.91mm, r2=132.31mm, r3=166.76mm, r4=195.20mm, r5=220mm；Limit five
Characteristic cross-section 4 is located at the radial position of the periphery of wheel hub 1.
The center of gravity product superimposing thread 5 of five characteristic cross-sections 4 is shaped as：Function y=-7.363x3+0.157x2-0.00109x-
74.062。
In above-mentioned function, the characteristic cross-section center of gravity in five characteristic cross-sections 4 near the center of wheel hub 1 takes x=2.9637, and five
Centroid of section in individual characteristic cross-section 4 farthest away from the center of wheel hub 1 takes x=75.2444, and the center of gravity product for limiting five characteristic cross-sections is folded
Line 5 is located at the region of above-mentioned function, and then limits the circumferential position that five characteristic cross-sections 4 are located at the periphery of wheel hub 1.
The chord length in r1 character pairs section, thickness, established angle in Fig. 2, distinguish b1, c1, t1 in corresponding diagram 3；
The chord length in r2 character pairs section, thickness, established angle in Fig. 2, distinguish b2, c2, t2 in corresponding diagram 4；
The chord length in r3 character pairs section, thickness, established angle in Fig. 2, distinguish b3, c3, t3 in corresponding diagram 5；
By that analogy.
As shown in Fig. 2 the chord length of five characteristic cross-sections 4 from inside to outside is followed successively by：
B1=62.6mm, b2=70.4mm, b3=76mm, b4=84.7mm, b5=86.6mm；
The thickness of five characteristic cross-sections 4 from inside to outside is followed successively by：
C1=4.132mm, c2=3.935mm, c3=3.732mm, c4=3.532mm, c5=3.325mm；
The established angle of five characteristic cross-sections 4 from inside to outside is followed successively by：
T1=23.74 °, t2=22.61 °, t3=21.61 °, t4=20.70 °, t5=20.33 °.
Characteristic cross-section established angle is straight line where chord length and the angle of the center of gravity product place plane of superimposing thread 5.
The beneficial effect of the technical program is proved with specific test data below.
Table 1, aerofoil fan of the present utility model and certain existing air quantity of fan correction data are as follows：
Table 2, aerofoil fan of the present utility model and certain existing fan noise correction data are as follows：
| Noise dB under 2050rpm rotating speeds | |
| Fan of the present utility model | 70.3 |
| Certain existing fan | 73.4 |
The data implication of second row is in table 1：Using fan of the present utility model, adjustment rotating speed is 1968rpm, static pressure is
120Pa, obtained air quantity are 3543.8m3/ h, other data implications are similarly below.
As can be seen that under conditions of equal rotating speed and static pressure, the fan of the application has bigger than certain existing fan
Air quantity.
Data implication in table 2 is：Under the conditions of same rotational speed 2050rpm, the noise of the application fan is 70.3dB, existing
The noise for having certain fan is 73.4dB.Show under same rotating speed, the fan of the application is lower than certain existing fan noise.
In addition this fan design, it is also high with cooling effectiveness, the advantages of good heat dissipation effect.
Claims (2)
1. aerofoil fan, including wheel hub (1), flabellum (2) and outer ring (3), in cylinder, outer ring (3) are for wheel hub (1) periphery
Annulus shape, wheel hub (1) external diameter are 169.84mm, and outer ring (3) internal diameter is 440mm, and wheel hub (1) is identical with outer ring (3) axis, and are taken turns
Hub (1) is located at outer ring (3) side face periphery, including seven flabellums (2), and flabellum (2) is LS aerofoil profiles, the leaf of seven flabellums (2)
Root it is uniform be connected to wheel hub (1) outer peripheral face, seven flabellum (2) leaf tops connect outer ring (3) inwalls；
Formed characterized in that, the flabellum (2) is coincided by five characteristic cross-sections (4), five characteristic cross-sections (4) are distributed in from wheel
On hub (1) center to five concentric circles of outer ring (3), and five concentric radius of circles from inside to outside are followed successively by：
R1=84.91mm, r2=132.31mm, r3=166.76mm, r4=195.20mm, r5=220mm；
The center of gravity product superimposing thread (5) of five characteristic cross-sections (4) is shaped as：
Y=-7.363x3+0.157x2-0.00109x-74.062；
Wherein, cut in five characteristic cross-sections (4) near the characteristic cross-section center of gravity x=2.9637 at wheel hub (1) center, five features
Farthest away from the characteristic cross-section center of gravity x=75.2444 at wheel hub (1) center in face (4)；And plane where center of gravity product superimposing thread (5) and wheel
Hub (1) outer peripheral face is vertical；
The chord length of five characteristic cross-sections (4) from inside to outside is followed successively by：
B1=62.6mm, b2=70.4mm, b3=76mm, b4=84.7mm, b5=86.6mm；
The thickness of five characteristic cross-sections (4) from inside to outside is followed successively by：
C1=4.132mm, c2=3.935mm, c3=3.732mm, c4=3.532mm, c5=3.325mm；
The established angle of five characteristic cross-sections (4) from inside to outside is followed successively by：
T1=23.74 °, t2=22.61 °, t3=21.61 °, t4=20.70 °, t5=20.33 °.
2. aerofoil fan as claimed in claim 1, it is characterised in that the wheel hub (1) is the cylindrical housings of one end open；
Outer ring (3) thickness is 1.5~1.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720844292.6U CN207161381U (en) | 2017-07-12 | 2017-07-12 | Aerofoil fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720844292.6U CN207161381U (en) | 2017-07-12 | 2017-07-12 | Aerofoil fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161381U true CN207161381U (en) | 2018-03-30 |
Family
ID=61711166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720844292.6U Withdrawn - After Issue CN207161381U (en) | 2017-07-12 | 2017-07-12 | Aerofoil fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207161381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131153A (en) * | 2017-07-12 | 2017-09-05 | 成都华川电装有限责任公司 | Aerofoil fan |
-
2017
- 2017-07-12 CN CN201720844292.6U patent/CN207161381U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131153A (en) * | 2017-07-12 | 2017-09-05 | 成都华川电装有限责任公司 | Aerofoil fan |
| CN107131153B (en) * | 2017-07-12 | 2023-11-07 | 成都华川电装有限责任公司 | Axial flow fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180330 Effective date of abandoning: 20231107 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180330 Effective date of abandoning: 20231107 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |