CN101285484A - Fan and its impeller - Google Patents
Fan and its impeller Download PDFInfo
- Publication number
- CN101285484A CN101285484A CNA2007100960044A CN200710096004A CN101285484A CN 101285484 A CN101285484 A CN 101285484A CN A2007100960044 A CNA2007100960044 A CN A2007100960044A CN 200710096004 A CN200710096004 A CN 200710096004A CN 101285484 A CN101285484 A CN 101285484A
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- flabellum
- impeller
- flabellums
- fan
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Abstract
The invention discloses a fan. The fan comprises an impeller, a motor and a fan frame. The impeller and the motor are received in the fan frame; the motor is connected with the impeller and drives the impeller to rotate, wherein, the impeller is provided with a hub and odd number of fan blade sets which are annularly arranged on the periphery of the hub; each fan blade set is respectively provided with a plurality of fan blades; and the fan blades in each fan blade set are the same or different with each other.
Description
Technical field
The present invention relates to a kind of fan and impeller thereof, particularly relate to a kind of fan and impeller thereof with odd number group flabellum group.
Background technique
Along with electronic product towards high-performance, high frequency, high-speed and lightening trend development, often cause the heating temperature of electronic product more and more higher, thereby be easy to generate unsettled phenomenon of when running, influence production reliability, so one of important topic when heat radiation has become the research and development of present electronic product.
Utilizing fan is common structure setting as sink, please refer to Fig. 1, and it is a kind of schematic representation of existing fan.Existing fan 1 comprises an impeller 10, a motor 11 and fan frame 13.Impeller 10 all is placed in the fan frame 13 with motor 11, and impeller 10 is to be made of a plurality of flabellums 101 and a wheel hub 102, and those flabellums 101 are located on the periphery of wheel hub 102.Motor 11 is positioned at wheel hub 102 inside, and comes drives impeller 10 to rotate by motor 11.
For existing fan 1 design, design with the odd number order choosing all of flabellum 101 numbers, purpose is when fan 1 rotates, meeting and other members, for example be that rib 131 produces resonance on the coil groups 111 of motor 11 or the fan frame 13, and the problems of deriving, as noise increase, energy imbalance produces and the fatigability increase etc. that causes bearing or other parts, and then influence the overall efficiency of fan 1 and the working life of reduction fan 1.
Yet, because radiating requirements is increasing, the requirement of fan 1 usefulness is also along with raising, and at the improvement of airflow pressure, generally be to attempt to improve air quantity and blast by the blade face width that increases flabellum 101, but because the restriction that 101 of adjacent flabellums have angle to be provided with, the therefore also limited design of blade face width.In addition, when desire by increasing flabellum 101 numbers in the hope of can improve air quantity and blast the time, will meet again and number of components between the resonance phenomenon that produced.
In view of this, how to provide a kind of airflow pressure to increase, and avoid producing " fan and the impeller thereof " of resonance phenomenon, real is one of important topic.
Summary of the invention
Because above-mentioned problem, purpose of the present invention increases for a kind of airflow pressure is provided, and does not produce fan and the impeller thereof that resonance phenomenon influences usefulness and working life.
Edge is for reaching above-mentioned purpose, to comprise a wheel hub and odd number flabellum group according to a kind of impeller of the present invention.Wherein, those flabellum groups are located on the periphery of wheel hub, and each flabellum group has a plurality of flabellums respectively.
For reaching above-mentioned purpose, comprise an impeller, a motor and fan frame according to a kind of fan of the present invention.Impeller and motor all are placed in the fan frame, and wherein, impeller has a wheel hub and odd number flabellum group, and those flabellum groups are located on the periphery of wheel hub, and each flabellum group has a plurality of flabellums respectively; Motor links and drives impeller.
From the above, because of according to a kind of fan of the present invention and impeller thereof be with a plurality of flabellums particularly the even number flabellum be divided into odd number flabellum group, therefore improving whole air quantity of fan and blast by the flabellum increase when, still can keep the balance of odd number flabellum.Be compared to prior art, the present invention is not limited to the design of odd number flabellum, and can avoid the resonance phenomenon that the even number flabellum is produced takes place, thereby has improved the usefulness of fan effectively.In addition, those flabellums in each flabellum group can be mutually the same or inequality, therefore more increased the elasticity of flabellum design.
Description of drawings
Fig. 1 is the schematic representation of existing a kind of fan;
Fig. 2 A and Fig. 2 B are according to the front of a kind of fan of preferred embodiment of the present invention and reverse side schematic representation;
Fig. 2 C is the schematic representation of impeller among Fig. 2 A;
Fig. 3, Fig. 4, Fig. 5 are the schematic representation according to the various impellers of preferred embodiment of the present invention;
Fig. 6 is those flabellum cross section unfolded drawings with different inclination angle according to preferred embodiment of the present invention.
Fig. 7 is those flabellum cross section unfolded drawings that difference is provided with height that have according to preferred embodiment of the present invention;
Fig. 8 is those flabellum cross section unfolded drawings with different airfoil profiles curvature and thickness according to preferred embodiment of the present invention;
Fig. 9 is those flabellum cross section unfolded drawings with different chord lengths according to preferred embodiment of the present invention;
Figure 10 is the schematic representation according to another impeller of preferred embodiment of the present invention.
The component symbol explanation:
1,2,3,7: fan
10,20,30,40,50,26: impeller
101,221,221a, 221b, 321a, 321b, 421a, 421b, 521a, 521b, 621a, 621b, 721a, 721b, 821a, 821b, 921a, 921b: flabellum
102,21,41: wheel hub
11: motor
111: coil groups
13,23: the fan frame
131: rib
22, G1, G2, G3, G4, G5,32,42,52,62,72,82,92: flabellum group
27: stiffener
L1, L2: highly
S1, S2: chord length
T1, T2: thickness
Embodiment
Hereinafter with reference to correlative type, a kind of fan and impeller thereof according to preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference marks.
Please refer to Fig. 2 A and Fig. 2 B, it is according to the front of a kind of fan of preferred embodiment of the present invention and reverse side schematic representation.A kind of fan 2 according to preferred embodiment of the present invention comprises an impeller 20, a motor 21 and a fan frame 23.Impeller 20 all is placed in the fan frame 23 with motor 21, and motor 21 links and drives impeller 20 is rotated.The fan 2 of present embodiment is an axial flow fan, but not as limit, it also can be a centrifugal fan certainly.
Please be simultaneously with reference to Fig. 2 A and Fig. 2 C, Fig. 2 C is the schematic representation of impeller among Fig. 2 A.Impeller 20 comprises a wheel hub 21 and odd number flabellum group 22, and those flabellum groups 22 are located on the periphery of wheel hub 21, and each flabellum group 22 has at least two flabellums 221.In the present embodiment, wheel hub 21 periphery rings are provided with G1, G2, G3, G4, G5 totally five groups flabellum group 22, and flabellum group 22 is the peripheries that are arranged at wheel hub 21 with equi-spaced apart.As shown in Figure 2, be around wheel hub 21 outer periphery with five flabellum groups 22, each flabellum group 22 has 2 flabellums 221, be the example explanation and form fan 2 thus with 10 flabellums 221, because a plurality of flabellums 221 on the impeller 20 are divided into odd number flabellum group 22, not only because of producing the odd number group by those flabellums 221 are designed, and produce the chance that resonates with other members of fan 2 when reducing impeller 20 runnings, more because can include a plurality of flabellums in each flabellum group, so with the extraneous surface area that contacts, and then make the air quantity enhancing of fan in the time of can increasing the rotation of whole flabellum because of the increase of flabellum number.
Yet, the present invention is not restricted to this, for example, also 9 flabellums can be one group with per 3 flabellums and form 3 flabellum groups, or 12 flabellums are one group with per 4 flabellums forms 3 flabellum groups, so scope of the present invention is all can as long as satisfy the condition of " odd number flabellum group and each flabellum group have a plurality of flabellums ".
In the present embodiment, those flabellums 221 in each flabellum group 22 differ from one another, that is the shape of flabellum 221a, 221b in each flabellum group 22 and curvature are also inequality, shown in Fig. 2 C.Perhaps, as shown in Figure 3, flabellum 321a, 321b in each the flabellum group 32 in the impeller 30, its length is also inequality.So, the present invention is not limited to this, and for example, as shown in Figure 4, flabellum 421a, 421b in each the flabellum group 42 in the impeller 40 also can be identical blade.
In addition, according to actual demand, adjacent flabellum 521a, the 521b of each the flabellum group 52 in the impeller 50 more can design to make each other overlaps, as shown in Figure 5.In this, the fan with this impeller 50 can be applied to have on the electronic equipment of a light source, as projector etc.Owing in radially projecting, overlap between adjacent flabellum 521a, the 521b, can effectively stop the outside transmission of light of light emitted and influence attractive in appearance.
In addition, please refer to Fig. 6, it is those flabellum cross section unfolded drawings with different inclination angle according to preferred embodiment of the present invention.In Fig. 6, the tiltangle 1 of flabellum 621a is inequality with the tiltangle 2 of flabellum 621b in each flabellum group 62, and belong to the flabellum 621a, the 621b that have same tilt angle θ 1, θ 2 in the different flabellum groups 62 setting that corresponds to each other, that is flabellum 621a, 621b with same tilt angle θ 1, θ 2 are staggered and are arranged on the wheel hub 61.
Can difference in each flabellum group except the tilt angle of flabellum, a plurality of flabellums in each flabellum group, its height on wheel hub connected to each other also can be difference, that is a plurality of flabellums are positioned on the Different Plane on the wheel hub.As shown in Figure 7, in each flabellum group 72 flabellum 721a be linked to the height L1 of wheel hub 71 and height L2 that flabellum 721b is linked to wheel hub 71 inequality.
Again, the flabellum in each flabellum group also can have different aerofoil profile curvature or thickness, and as shown in Figure 8, flabellum 821a, 821b in each flabellum group 82 have thickness T 1, T2 respectively, and T1 is not equal to T2.In addition, the flabellum of each flabellum group also can have different chord lengths, and as shown in Figure 9, flabellum 921a, 921b in each flabellum group 92 have chord length S1, S2 respectively, and S1 is not equal to S2.In addition, the side-looking aerofoil profile of those flabellums also can be inequality; When each flabellum group had flabellum more than two, the spacing between those flabellums can be unequal each other.
Please refer to Figure 10, have similar formation and functional character according to another impeller 29 of preferred embodiment of the present invention to the impeller 2 of Fig. 2 C, difference is that the impeller 26 of Figure 10 more comprises at least one stiffener 27, and each flabellum 221 all links mutually with stiffener 27.Know clearly it, stiffener 73 is a ring-type and is arranged at flabellum 221 outer rims, and make the tail end of each flabellum 221 all be connected to stiffener 27, thus, can strengthen the structural rigidity of impeller 26, if produce the problem of distortion at the flabellum tail end when flabellum 221 can substantially improve impeller 26 high speed rotating when oversize.Moreover stiffener 27 can make 221 mean forceds of each flabellum distribute, and the stability also can increase impeller 26 rotations the time.
In sum, fan provided by the present invention and impeller thereof, its design with a plurality of flabellums particularly the even number flabellum be divided into odd number flabellum group, therefore improving whole air quantity of fan and blast by the flabellum increase when, still can keep the balance of odd number flabellum.Be compared to prior art, the present invention is not limited to the design of odd number flabellum, and can avoid the resonance phenomenon that the even number flabellum is produced takes place, thereby has improved the usefulness of fan effectively.In addition, those flabellums in each flabellum group can be mutually the same or inequality, therefore more increased the elasticity of flabellum design.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the appended claim its equivalent modifications of carrying out or change.
Claims (17)
1, a kind of impeller comprises:
One wheel hub; And
Odd number flabellum group, it is located on the periphery of this wheel hub, and each flabellum group has a plurality of flabellums respectively.
2, impeller as claimed in claim 1, wherein whenever those flabellums in this flabellum group are differing from each other.
3, impeller as claimed in claim 2, wherein whenever those flabellums in this flabellum group its be arranged at that the tilt angle of this wheel hub is differing from each other, whenever the height that is linked to this wheel hub of those flabellums in this flabellum group is inequality, every its length of those flabellums in this flabellum group and inequality, perhaps whenever aerofoil profile curvature, chord length, thickness or the side-looking aerofoil profile of those flabellums in this flabellum group are inequality.
4, impeller as claimed in claim 1, wherein whenever those flabellums in this flabellum group are mutually the same, and whenever the quantity of those flabellums in this flabellum group is identical.
5, impeller as claimed in claim 1, wherein whenever those flabellums of this flabellum group respectively with the corresponding setting of those flabellums of other flabellum groups.
6, impeller as claimed in claim 1, wherein whenever this flabellum group is the periphery that is located on this wheel hub with equi-spaced apart.
7, impeller as claimed in claim 1 is to overlap between those adjacent flabellums of this flabellum group whenever wherein.
8, impeller as claimed in claim 1, wherein this impeller more comprises at least one stiffener, it links all those flabellum groups, and this stiffener is in the form of a ring.
9, a kind of fan comprises:
One impeller, it comprises a wheel hub and odd number flabellum group, those flabellum groups are located on the periphery of this wheel hub, and each flabellum group has a plurality of flabellums respectively;
One motor, its binding also drives this wheel rotation; And
One fan frame, this impeller and this motor all are placed in this fan frame.
10, fan as claimed in claim 9, wherein whenever those flabellums in this flabellum group are differing from each other.
11, fan as claimed in claim 10, wherein whenever its tilt angle that is arranged at this wheel hub of those flabellums in this flabellum group be differing from each other, whenever the height that is linked to this wheel hub of those flabellums in this flabellum group is inequality, every its length of those flabellums in this flabellum group and inequality, perhaps whenever aerofoil profile curvature, chord length, thickness or the side-looking aerofoil profile of those flabellums in this flabellum group are inequality.
12, fan as claimed in claim 10, wherein whenever the spacing between those flabellums in this flabellum group is unequal.
13, fan as claimed in claim 9, wherein whenever those flabellums in this flabellum group are mutually the same, and whenever the quantity of those flabellums in this flabellum group is identical.
14, fan as claimed in claim 9, wherein whenever those flabellums of this flabellum group respectively with the corresponding setting of those flabellums of other flabellum groups.
15, fan as claimed in claim 9, wherein whenever this flabellum group is the periphery that is located on this wheel hub with equi-spaced apart.
16, fan as claimed in claim 9 is to overlap between those adjacent flabellums of this flabellum group whenever wherein.
17, fan as claimed in claim 9, wherein this impeller more comprises at least one stiffener, it links all those flabellum groups, and this stiffener is in the form of a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100960044A CN101285484A (en) | 2007-04-10 | 2007-04-10 | Fan and its impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100960044A CN101285484A (en) | 2007-04-10 | 2007-04-10 | Fan and its impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101285484A true CN101285484A (en) | 2008-10-15 |
Family
ID=40057843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100960044A Pending CN101285484A (en) | 2007-04-10 | 2007-04-10 | Fan and its impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101285484A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979761A (en) * | 2011-09-07 | 2013-03-20 | 技嘉科技股份有限公司 | Fan impeller |
| CN105201876A (en) * | 2014-06-30 | 2015-12-30 | 联想(北京)有限公司 | Fan and electronic equipment |
| US9568022B2 (en) | 2013-03-25 | 2017-02-14 | Asustek Computer Inc. | Impeller and fan using the same |
| CN107288924A (en) * | 2017-08-17 | 2017-10-24 | 联想(北京)有限公司 | A kind of electronic equipment and its radiator fan |
| CN108223447A (en) * | 2016-12-15 | 2018-06-29 | 林高合 | Energy saving impeller |
| CN110730868A (en) * | 2017-06-19 | 2020-01-24 | 大金工业株式会社 | Propeller fan |
| CN111434927A (en) * | 2019-01-11 | 2020-07-21 | 华硕电脑股份有限公司 | Centrifugal fan and impeller thereof |
| CN113137398A (en) * | 2021-04-23 | 2021-07-20 | 昆山品岱电子有限公司 | Heat radiation fan for electronic product |
| TWI751392B (en) * | 2018-12-18 | 2022-01-01 | 宏碁股份有限公司 | Heat dissipation fan |
-
2007
- 2007-04-10 CN CNA2007100960044A patent/CN101285484A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979761A (en) * | 2011-09-07 | 2013-03-20 | 技嘉科技股份有限公司 | Fan impeller |
| US9568022B2 (en) | 2013-03-25 | 2017-02-14 | Asustek Computer Inc. | Impeller and fan using the same |
| CN105201876A (en) * | 2014-06-30 | 2015-12-30 | 联想(北京)有限公司 | Fan and electronic equipment |
| CN108223447A (en) * | 2016-12-15 | 2018-06-29 | 林高合 | Energy saving impeller |
| CN110730868A (en) * | 2017-06-19 | 2020-01-24 | 大金工业株式会社 | Propeller fan |
| CN110730868B (en) * | 2017-06-19 | 2021-05-28 | 大金工业株式会社 | Propeller fan |
| US11512709B2 (en) | 2017-06-19 | 2022-11-29 | Daikin Industries, Ltd. | Propeller fan |
| CN107288924A (en) * | 2017-08-17 | 2017-10-24 | 联想(北京)有限公司 | A kind of electronic equipment and its radiator fan |
| US11566632B2 (en) | 2017-08-17 | 2023-01-31 | Lenovo (Beijing) Co., Ltd. | Electronic device and cooling fan |
| US11268525B2 (en) | 2018-12-18 | 2022-03-08 | Acer Incorporated | Heat dissipation fan |
| TWI751392B (en) * | 2018-12-18 | 2022-01-01 | 宏碁股份有限公司 | Heat dissipation fan |
| CN111434927A (en) * | 2019-01-11 | 2020-07-21 | 华硕电脑股份有限公司 | Centrifugal fan and impeller thereof |
| CN111434927B (en) * | 2019-01-11 | 2021-07-09 | 华硕电脑股份有限公司 | Centrifugal fan and impeller thereof |
| CN113137398B (en) * | 2021-04-23 | 2022-04-08 | 昆山品岱电子有限公司 | Heat radiation fan for electronic product |
| CN113137398A (en) * | 2021-04-23 | 2021-07-20 | 昆山品岱电子有限公司 | Heat radiation fan for electronic product |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20081015 |