CN102086874A - Cooling fan for reinforcing diversion cooling - Google Patents
Cooling fan for reinforcing diversion cooling Download PDFInfo
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- CN102086874A CN102086874A CN2009101547999A CN200910154799A CN102086874A CN 102086874 A CN102086874 A CN 102086874A CN 2009101547999 A CN2009101547999 A CN 2009101547999A CN 200910154799 A CN200910154799 A CN 200910154799A CN 102086874 A CN102086874 A CN 102086874A
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Abstract
The invention discloses a cooling fan for reinforcing diversion cooling. The cooling fan comprises a hub, fan blades and a diversion ring, wherein the fan blades are connected with the diversion ring. The cooling fan is characterized in that: the periphery of the hub is provided with spiral reinforcing ribs; the spiral reinforcing ribs are connected with the bottoms of the fan blades and are distributed at equal intervals along an involute; the direction of the involute corresponds to the rotation direction of the fan; and in the involute, x and y in a parameter equation can be exchanged along with the rotation direction of the fan by the parameter equation under a Qadir coordinate system. Compared with the prior art, the cooling fan has the advantages that: service life is greatly prolonged and a cooling effect is enhanced.
Description
Technical field
The present invention relates to a kind of engine-cooling system assembly---cooling fan.
Background technique
In recent years, the Domestic Automotive Industry fast development, the pillar status of automobile industry manifests gradually.Compare with passenger car, the market manifestation of China's commercial car is more outstanding, and market sales volume amplification surmounts passenger car in recent years first.Heavy goods vehicle is realized increasing substantially, and the product up-gradation paces are accelerated, and the SUPPLY CHAIN system is optimized gradually; Along with improving constantly of rotating speed of automobile engine and power, heat load is also more and more big, and is also more and more higher to the requirement of cooling system, and people more and more pay attention to the research of cooling system, and new technology, new material continue to bring out.The effect of cooling system is under all operating modes, the assurance motor is worked under optimum temperature, the whether suitable working life and the fuel economy that will directly have influence on motor of cooling system coupling, so in Cooling System Design and in calculating, the type selecting of radiator and the coupling of fan play crucial effects to cooling system.The unnecessary heat process secondary heat exchange that radiator is entrained with cooling liquid in the engine water jacket is dispersed into the heat that hot parts absorbed in the air under the forced draft effect of cooling fan.For ease of organizing air-flow, radiator is arranged in the front of car load, but owing to be subjected to the restriction of car load arrangement space, has also arranged air-conditioning condenser in its front, and this can increase windage, influences the air output of radiator, thereby influences the cooling capacity of cooling system.Therefore cooling system is more and more higher to the requirement of fan.The fan blade of common cooling fan radially is being an open type, and for guaranteeing the intensity and the rigidity of fan blade, the fan fan blade is by the radially outwards thickness attenuation gradually of wheel hub center, and is yielding during molding and forming.Big so beat, amount of unbalance is bigger, and noise is big.The annular cooling fan then is the invention that comes in the recent period, is to improve the fan blade streamline on the basis of common cooling fan, increases guide ring.The annular cooling fan is made of pallet, wheel hub, fan blade, guide ring, the ultrathin design of fan blade thickness, and fan blade and guide ring link together, and have alleviated the weight of fan blade, have increased rigidity, have reduced the distortion of fan blade, and it is little to beat, and static balancing is good, and noise is little.The defective of its existence is to have eddy current when work, eddy current wind is owing to can not be evacuated away immediately, in annular wheel hub, form sinuous flow, wheel hub is produced irregular impact, reduced the efficient and the endurance impact strength of fan, reduced working life, and the annular wheel hub design, make the wind that head-on enters can not to around exhale effectively and cool off, need further to improve.
Summary of the invention
Technical problem to be solved by this invention is the present situation at prior art, and providing a kind of can increase working life, improves the cooling fan of the reinforcement water conservancy diversion cooling of cooling effect.
The present invention solves the problems of the technologies described above and the technological scheme that adopts is: a kind of cooling fan of strengthening the water conservancy diversion cooling, it comprises wheel hub, fan blade and guide ring at least, the outside and the guide ring of fan blade link together, it is characterized in that: be provided with spiral stiffening rib around the wheel hub, this stiffening rib and bottom, fan blade inboard link together.
As improvement, described stiffening rib adopts involute equidistantly to arrange, simultaneously the corresponding fan sense of rotation of involute direction.
As improvement, described involute utilizes the parametric equation under the Ka Dier system of coordinates, and is as follows, establishes pressure angle afa by 0 to α degree, and Base radius is R:
afa＝α×t
x＝R×cos(afa)+∏×R×afa/180×sin(afa)
y＝R×sin(afa)-∏×R×afa/180×cos(afa)
z＝0。
As improvement, x, y can exchange in the parametric equation under the described card Deere system of coordinates.
Compared with prior art, the invention has the advantages that: spiral reinforcing rib design around the wheel hub, the wind that effectively will head-on enter evacuate to around, enter blade and participate in cooling, improve cooling effect, can also effectively eliminate the sinuous flow of wheel hub, improve fan efficiency and strengthen the endurance impact strength, increased working life, stiffening rib adopts involute equidistantly to arrange, and cooling property promotes 12%～14% than the fan of annular wheel hub design, efficient improves 7%～9%, simultaneously also can better eliminate sinuous flow, reduce vibration, reduce noise, also can strengthen the endurance impact strength, the corresponding fan sense of rotation of involute direction, improve the flow velocity of air between the fan blade, strengthened heat exchanging function, also can play cooling effect, stiffening rib and fan blade bottom link together, increased the rigidity and the intensity of fan blade, reduced the distortion of fan blade, structure is more reasonable and practical.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the profile of Fig. 1.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Spiral as described in Figure reinforcement water conservancy diversion cooling novel hub design fan, it includes wheel hub 1, fan blade 2 and guide ring 3 at least, be provided with spiral stiffening rib 4 around the described wheel hub 1, the top, the outside and the guide ring 3 of above-mentioned fan blade 2 link together, the inboard bottom of fan blade 2 links together with stiffening rib 4, traditional wheel hub is an annular design, the fan blade bottom of conventional fan directly links to each other with ring surface, because the restriction of its structure, cause the wind that head-on enters can not to around exhale effectively and cool off; Above-mentioned spiral stiffening rib 4 adopts involute equidistantly to arrange, the wind that effectively will head-on enter evacuate to around, enter blade and participate in cooling, can make cooling effect promote 12%～14%, efficient improves 7%～9%, eliminates sinuous flow, strengthened working life, the corresponding fan sense of rotation of involute direction has simultaneously improved the flow velocity of air between the fan blade 2, has strengthened heat exchanging function; Described involute utilizes the parametric equation under the Ka Dier system of coordinates, and is as follows, establishes pressure angle afa by 0 to α degree, and Base radius is R:
afa＝α×t
x＝R×cos(afa)+∏×R×afa/180×sin(afa)
y＝R×sin(afa)-∏×R×afa/180×cos(afa)
z＝0；
∏ is a Ratio of the circumference of a circle to its diameter, and t is the parameter that adjusted by ectocine such as temperature, material.About pressure angle afa and Base radius R parameter person skilled in art can select according to the fan specification and the requirement of design.
Can change the rotation direction of involute when x, y in the parametric equation under exchanging card Deere system of coordinates, make wheel hub 1 can better cooperate the sense of rotation of fan.
Claims (4)
1. strengthen the cooling fan that water conservancy diversion cools off for one kind, it includes wheel hub (1), fan blade (2) and guide ring (3) at least, fan blade (2) outside links together with guide ring (3), it is characterized in that: wheel hub (1) is provided with spiral stiffening rib (4) on every side, and this stiffening rib (4) links together with the inboard bottom of fan blade (2).
2. cooling fan according to claim 1 is characterized in that: described stiffening rib (4) adopts involute equidistantly to arrange, simultaneously the corresponding fan sense of rotation of involute direction.
3. cooling fan according to claim 2 is characterized in that: described involute utilizes the parametric equation under the Ka Dier system of coordinates, and is as follows, establishes pressure angle afa by 0 to α degree, and Base radius is R:
afa＝α×t
x＝R×cos(afa)+∏×R×afa/180×sin(afa)
y＝R×sin(afa)-∏×R×afa/180×cos(afa)
z＝0；
∏ is a Ratio of the circumference of a circle to its diameter, and t is the parameter that adjusted by ectocine such as temperature, material.
4. cooling fan according to claim 1 is characterized in that: x, y can exchange in the parametric equation under the described card Deere system of coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101547999A CN102086874A (en) | 2009-12-08 | 2009-12-08 | Cooling fan for reinforcing diversion cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101547999A CN102086874A (en) | 2009-12-08 | 2009-12-08 | Cooling fan for reinforcing diversion cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102086874A true CN102086874A (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101547999A Pending CN102086874A (en) | 2009-12-08 | 2009-12-08 | Cooling fan for reinforcing diversion cooling |
Country Status (1)
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| CN (1) | CN102086874A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103649548A (en) * | 2011-06-14 | 2014-03-19 | 罗伯特·博世有限公司 | Airflow assembly having improved acoustical performance |
| CN110107530A (en) * | 2019-06-19 | 2019-08-09 | 苏州睿昕汽车配件有限公司 | Multisection type water conservancy diversion wheel hub structure fan |
-
2009
- 2009-12-08 CN CN2009101547999A patent/CN102086874A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103649548A (en) * | 2011-06-14 | 2014-03-19 | 罗伯特·博世有限公司 | Airflow assembly having improved acoustical performance |
| CN103649548B (en) * | 2011-06-14 | 2017-07-28 | 罗伯特·博世有限公司 | Air-flow component with improved acoustic characteristic |
| US10041505B2 (en) | 2011-06-14 | 2018-08-07 | Robert Bosch Llc | Airflow assembly having improved acoustical performance |
| CN110107530A (en) * | 2019-06-19 | 2019-08-09 | 苏州睿昕汽车配件有限公司 | Multisection type water conservancy diversion wheel hub structure fan |
| CN110107530B (en) * | 2019-06-19 | 2023-12-29 | 苏州睿昕汽车配件有限公司 | Multi-section type diversion hub structure fan |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110608 |