CN101144484A - Through-flow fan impeller - Google Patents
Through-flow fan impeller Download PDFInfo
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- CN101144484A CN101144484A CNA2006101220841A CN200610122084A CN101144484A CN 101144484 A CN101144484 A CN 101144484A CN A2006101220841 A CNA2006101220841 A CN A2006101220841A CN 200610122084 A CN200610122084 A CN 200610122084A CN 101144484 A CN101144484 A CN 101144484A
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- flow fan
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Abstract
The invention relates to a cross flow fan blade. The invention comprises a left end cover (1), a right end cover (4), a plurality of middle separating rings (3), and a plurality of blades (2) arranged between the central separating rings (3) or between the central separating rings (3) and the end covers (1) and (4), wherein, the blades (2) are distributed according to the blade inclination angle of beta=21 plus-minus 2 degrees, the number of the blades distributed on the blade circumference is 30 to 40, and simultaneously whether the distribution is equally spaced or not, the circumference distance Lambda between two adjacent blades (2) satisfies the formula: Lambda belongs to the interval (6 degrees, 15degrees). Every time when the blade (2) is axially lengthened by H=100 mm, the blade (2) is lengthened along the circumference direction according to the proportion of the deflection angle a, and the deflection angle a satisfies the formula: a belongs to the interval (-0.12 degrees, 0.12 degrees). On any cross section of the blade (2), the blade width L is 12 plus-minus 2 mm, the chord height h of the blade is 2. 5 plus-minus 0.8 mm. and the maximum thickness t of the middle of the blade is 1.3 plus-minus 0.5 mm. The invention has the optimum blade inclination angle, the wind quantity of the can is greatly enhanced, and the noise during the running process of the fan is reduced.
Description
Technical field:
The present invention is a kind of blast fan, specifically is a kind of through-flow fan impeller with optimum blade tilt, belongs to the improvement technology of existing through-flow fan impeller.
Background technique:
At present, axial-flow fan has wide range of applications, wherein wall hanging type air conditioner indoor unit drives air-flow by through-flow fan impeller and heat exchanger carries out heat exchange action, the big more heat exchange effect of air quantity is obvious more, consider the influence of room noise simultaneously, so axial-flow fan requires, and air quantity is big, noise is little to the people.And present most of diameter D is that its blade tilt beta angle generally all is 26 ± 2 ° in 88 ± 4 millimeters the through-flow fan impeller.Blade tilt beta is on the arbitrary cross section perpendicular to impeller as shown in Figure 2, the angle of the line in the line at blade two ends and blade outer end and the impeller center of circle.Finding through numerical simulation and true test, is 88 ± 4 millimeters through-flow fan impeller for diameter D, and 26 ± 2 ° of blade tilts are not the blade tilt of an optimum.
Summary of the invention:
The objective of the invention is to consider the problems referred to above and a kind of optimum blade tilt that has is provided, air quantity is promoted greatly, the through-flow fan impeller that noise also reduces.
Structural representation of the present invention as shown in Figure 1, include impeller left end cap (1), impeller right end cap (4), in several spacer ring (3) and be located between the middle spacer ring (3) or middle spacer ring (3) and left end cap (1), right end cap (4) between some blades (2), wherein blade (2) is pressed blade tilt beta=21 ± 2 ° distribution.
On the cross section of above-mentioned blade (2), width of blade L is 12 ± 2 millimeters, and blade action h is 2.5 ± 0.8 millimeters, and maximum blade thickness t is 1.3 ± 0.5 millimeters.
Above-mentioned blade (2) is by every in the axial direction prolongations H=100 millimeter, with regard to deflection angle along the circumferential direction
Ratio prolong deflection angle
Satisfy:
The blade quantity that above-mentioned blade (2) distributes on circumference of impeller is 30～40, and the circumference spacing λ between adjacent two blades satisfies: λ ∈ [6 °, 15 °].
The diameter D of above-mentioned through-flow fan impeller is 88 ± 4 millimeters.
The present invention is because employing has the structure of optimum blade tilt, and therefore, it not only makes the air quantity of fan promote greatly, and also reduces the noise in the fan running.The present invention is that a kind of design is ingenious, function admirable, convenient and practical through-flow fan impeller.
Description of drawings:
Fig. 1 is the structural representation of through-flow fan impeller of the present invention;
Fig. 2 is the cross-sectional view of through-flow fan impeller;
Fig. 3 is the partial enlarged drawing at A place among Fig. 2.
When Fig. 4 prolonged H=100mm vertically for blade, the blade while is deflection angle along the circumferential direction
Schematic representation.
Fig. 5 is the different blade tilt Beta figure that influences to the axial-flow fan air quantity.
Fig. 6 is under the different blade tilt Beta, the schematic representation of axial-flow fan efficient and corresponding air quantity.
Embodiment:
Embodiment:
The structural representation of through-flow fan impeller of the present invention as shown in Figure 1, Fig. 2 is the cross-sectional view of through-flow fan impeller, λ is the circumference spacing of two blades, to be blade tilt: Fig. 3 be the partial enlarged drawing at A place among Fig. 2 at the beta angle.Include impeller left end cap 1, impeller right end cap 4, spacer ring 3 and not between the middle spacer ring 3 or the some blades 2 between middle spacer ring 3 and left end cap 1, the right end cap 4 in several, wherein blade 2 is pressed blade tilt beta=21 ± 2 ° distribution.On the cross section of above-mentioned blade 2, width of blade L is 12 ± 2 millimeters, and blade action h is 2.5 ± 0.8 millimeters, and maximum blade thickness t is 1.3 ± 0.5 millimeters.The diameter D of above-mentioned through-flow fan impeller is 88 ± 4 millimeters.
In the present embodiment, through-flow fan impeller diameter D is: 88.8 millimeters, and during blade 2 is distributed in by beta=21 ° between the spacer ring 3 or between spacer ring 3 and left end cap 1, the right end cap 4.Above-mentioned blade 2 width of blade L values are 12 millimeters, and the maximum action h of blade value is 2.5 millimeters, and maximum blade thickness t value is 1.2 millimeters.
When Fig. 4 prolonged H=100mm vertically for blade, the blade while is deflection angle along the circumferential direction
Schematic representation.Wherein, p
1Be the circumferential position of vane end faces on a spacer ring 3 place face f, p
2For vane end faces prolongs H vertically, and deflection angle along the circumferential direction simultaneously
After the position, P
2' be p
2Projection on face f, p
2With P
2' the fillet spacing at angle be deflection angle just
Above-mentioned blade 2 is by every in the axial direction prolongations H=100 millimeter, with regard to deflection angle along the circumferential direction
Ratio prolong deflection angle
Satisfy:
。In the present embodiment, the every in the axial direction overtime of above-mentioned blade 2, the angle of blade deflection along the circumferential direction
, be the prismatic blade impeller.
The blade quantity that above-mentioned blade 2 distributes on circumference of impeller is 30～40, and the circumference spacing λ between adjacent two blades satisfies: λ ∈ [6 °, 15 °].In the present embodiment, the blade quantity that above-mentioned blade 2 distributes on circumference of impeller is 35, wherein blade between distribution mode for being equally spaced circumference spacing λ=360 °/35=10.2857 °.
In numerical simulation, blade tilt beta variation from 16 ° to 29 °, axial-flow fan air quantity and efficient respective change situation are seen accompanying drawing 5 and accompanying drawing 6.Fig. 5 is the different blade tilt Beta figure that influences to the axial-flow fan air quantity, and abscissa is blade tilt Beta, and y coordinate is an air quantity, and unit is: kg
3/ h.Fig. 6 abscissa is an air quantity, and unit is: kg
3/ h, y coordinate are efficient, and under the different blade tilt Beta, the optimum efficiency of axial-flow fan and corresponding flow are determined a location point in this figure system of coordinates.
Can see that from accompanying drawing 5 it is that parabolic curve changes that outflow and blade tilt close, it is on the summit near 21 °.In accompanying drawing 6 efficient flow diagrams, can find out more obviously that blade tilt beta has a best region [19 ° ~ 23 °], in this interval, axial-flow fan efficient height, flow is big.
According to numerical simulation result, we have manufactured the impeller of 17 °, 21 °, 26 ° three different blade tilts in true test, record air quantity, noise number such as the following table 1 of each impeller.
Air quantity noise under the different impeller different rotating speeds of table 1
From the true test result of last table 1, improve nearly 30m than 26 ° of blade tilt impellers with the following 21 ° of blade tilt impeller air quantity of rotating speed
3/ h, and noise level is approaching.
Through interpolation processing, can calculate with air quantity 455m
3Under/the h, 26 ° of blade tilt impeller noises are 36.6dB, and 21 ° of blade tilt impeller noises are 35.1dB, 21 ° of blade tilt impeller noises than 26 ° of little 1.5dB of blade tilt impeller about.
In addition, 17 ° of blade tilt impellers slightly improve than 26 ° of blade tilt impeller air quantity in the table, and noise also slightly improves.
By last analysis as can be known, beta=21 ± 2 ° blade tilt really is optimum blade tilt.
Claims (5)
1. through-flow fan impeller, include impeller left end cap (1), impeller right end cap (4), in several spacer ring (3) and be located between the middle spacer ring (3) or middle spacer ring (3) and left end cap (1), right end cap (4) between some blades (2), it is characterized in that blade (2) presses blade tilt beta=21 ± 2 ° distribution.
2. axial-flow fan wheel according to claim 1 is characterized in that on the cross section of above-mentioned blade (2) that width of blade L is 12 ± 2 millimeters, and blade action h is 2.5 ± 0.8 millimeters, and maximum blade thickness t is 1.3 ± 0.5 millimeters.
3. through-flow fan impeller according to claim 1 and 2 is characterized in that above-mentioned blade (2) by every in the axial direction prolongation H=100 millimeter, and just along the circumferential direction the ratio of deflection angle prolongs, and deflection angle satisfies: ∈ [0.12 °, 0.12 °].
4. through-flow fan impeller according to claim 3 is characterized in that the blade quantity that above-mentioned blade (2) distributes is 30～40 on circumference of impeller, the circumference spacing λ between adjacent two blades satisfies: λ ∈ [6 °, 15 °].
5. through-flow fan impeller according to claim 4, the diameter D that it is characterized in that above-mentioned through-flow fan impeller is 88 ± 4 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101220841A CN100501170C (en) | 2006-09-11 | 2006-09-11 | Through-flow fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101220841A CN100501170C (en) | 2006-09-11 | 2006-09-11 | Through-flow fan impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144484A true CN101144484A (en) | 2008-03-19 |
| CN100501170C CN100501170C (en) | 2009-06-17 |
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ID=39207170
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101220841A Expired - Fee Related CN100501170C (en) | 2006-09-11 | 2006-09-11 | Through-flow fan impeller |
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| Country | Link |
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| CN (1) | CN100501170C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269180A (en) * | 2011-07-13 | 2011-12-07 | 广东志高空调有限公司 | Impellor structure and cross-flow fan |
| CN103403355A (en) * | 2011-03-02 | 2013-11-20 | 夏普株式会社 | Cross-flow fan, casting die, and fluid delivery device |
| WO2014019262A1 (en) * | 2012-08-01 | 2014-02-06 | Lin Dong | Impeller turbine, and vertical and horizontal ocean energy power generation apparatuses using same |
| CN103573529A (en) * | 2012-08-01 | 2014-02-12 | 杭州林黄丁新能源研究院有限公司 | Water turbine |
| CN111412179A (en) * | 2019-01-08 | 2020-07-14 | 广东美的制冷设备有限公司 | Cross flow wind wheel and air conditioner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3484854B2 (en) * | 1996-01-18 | 2004-01-06 | 三菱電機株式会社 | Once-through fan |
| CN2303961Y (en) * | 1998-02-18 | 1999-01-13 | 安徽天大企业(集团)公司工程塑料厂 | Spiral nonequi-spaced perfusion-flow fan-blads |
| JP2006152886A (en) * | 2004-11-26 | 2006-06-15 | Toshiba Kyaria Kk | Cross-flow fan, and indoor unit of air conditioner |
-
2006
- 2006-09-11 CN CNB2006101220841A patent/CN100501170C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403355A (en) * | 2011-03-02 | 2013-11-20 | 夏普株式会社 | Cross-flow fan, casting die, and fluid delivery device |
| CN103403355B (en) * | 2011-03-02 | 2016-08-24 | 夏普株式会社 | Axial-flow fan, mold for forming and fluid delivery system |
| CN102269180A (en) * | 2011-07-13 | 2011-12-07 | 广东志高空调有限公司 | Impellor structure and cross-flow fan |
| WO2014019262A1 (en) * | 2012-08-01 | 2014-02-06 | Lin Dong | Impeller turbine, and vertical and horizontal ocean energy power generation apparatuses using same |
| CN103573529A (en) * | 2012-08-01 | 2014-02-12 | 杭州林黄丁新能源研究院有限公司 | Water turbine |
| CN111412179A (en) * | 2019-01-08 | 2020-07-14 | 广东美的制冷设备有限公司 | Cross flow wind wheel and air conditioner |
| WO2020143153A1 (en) * | 2019-01-08 | 2020-07-16 | 广东美的制冷设备有限公司 | Cross-flow wind wheel and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100501170C (en) | 2009-06-17 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HISENSE KELON ELECTRICAL HOLDINGS CO., LTD. Free format text: FORMER NAME: KELONG ELECTRICAL APPLIANCES CO., LTD., GUANGDONG PROV. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 528303, 2, Feng Ye Road, Ronggui street, Shunde District, Guangdong, Foshan Patentee after: Hisense Kelon Electrical Holdings Co.,Ltd. Address before: 528303, 2, Feng Ye Road, Ronggui street, Shunde District, Guangdong, Foshan Patentee before: GUANGDONG KELON ELECTRICAL HOLDINGS Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20210911 |
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| CF01 | Termination of patent right due to non-payment of annual fee |