CN100449157C - Blower fan and fan frame - Google Patents
Blower fan and fan frame Download PDFInfo
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- CN100449157C CN100449157C CNB2006100061053A CN200610006105A CN100449157C CN 100449157 C CN100449157 C CN 100449157C CN B2006100061053 A CNB2006100061053 A CN B2006100061053A CN 200610006105 A CN200610006105 A CN 200610006105A CN 100449157 C CN100449157 C CN 100449157C
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- stator blade
- fan frame
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Abstract
The present invention relates to a fan. It includes a blade wheel, a fan frame and a motor. Said fan frame includes a frame body, a base seat and several static blade groups, said base seat is set in the frame body interior, every static blade group has several static blades, said static blades are placed between frame body and base seat, said motor is set on the base seat and is used for driving static blades and making them be rotated.
Description
Technical field
The present invention relates to a kind of fan and fan frame thereof, particularly relate to a kind of fan and fan frame thereof that can reduce noise.
Background technique
Along with electronic product towards high-performance, high frequency, high-speed and lightening developing rapidly, cause the heating temperature of electronic product more and more higher, thereby be easy to generate wild effect, influence production reliability, so existing electronic product often utilizes fan as sink.
With reference to Fig. 1, a kind of known fan 1 comprises an impeller 11, a motor 12 and a fan frame 13.Fan frame 13 comprises a framework 131, a plurality of stator blade 132 and a pedestal 133.Two ends of a plurality of stator blades 132 are connected with pedestal 133 with framework 131 respectively, and motor 12 is set on the pedestal 133, rotate in order to drives impeller 11.Fig. 2 a is the schematic representation of fan frame 13, and Fig. 2 b is the schematic representation that the aerofoil profile of stator blade 132 is launched, and the aerofoil profile profile of each stator blade 132 is identical with spacing.
Though the design of stator blade effectively pilot gas the flow direction and promote the radiating efficiency of fan, yet, when fan runs up, can form high frequency noise.One of reason that causes this phenomenon is because the aerofoil profile of a plurality of stator blades on the fan frame is identical with spacing, form identical variation in pressure when making air-flow through stator blade, and the variation in pressure on stator blade surface is exactly one of noise source, so on each stator blade, can form almost consistent noise, and cause the situation of superposition.The method of this high frequency noise problem of known solution is to reduce the stator blade number or use rib instead, but the amount of the minimizing high frequency noise superposition that this can only be passive, and can not solve the phenomenon of noise superposition, and is unfavorable for the radiating efficiency of fan.
Therefore, how to provide a kind of fan and fan frame thereof solving the problem of the high frequency noise that causes because of superposition on the stator blade of fan frame, and do not influence the radiating efficiency of fan, this is one of current important problem.
Summary of the invention
In view of above-mentioned problem, purpose of the present invention is for providing a kind of fan and fan frame thereof that can solve the problem of fan frame high frequency noise and not influence the radiating efficiency of fan.
For achieving the above object,, comprise a framework, a pedestal and a plurality of stator blade group according to a kind of fan frame of the present invention.Pedestal is arranged in the framework, and each stator blade group comprises a plurality of stator blades, and two ends of stator blade are separately positioned between framework and the pedestal, wherein has at least profile, size or the top rake of at least one stator blade in a stator blade and other stator blade group inequality in each stator blade group.
For achieving the above object,, comprise an impeller, a fan frame and a motor according to a kind of fan of the present invention.The fan frame comprises a framework, a pedestal and a plurality of stator blade group.Pedestal is arranged in the framework, and each stator blade group comprises a plurality of stator blades, and two ends of stator blade are separately positioned between framework and the pedestal, wherein has at least profile, size or the top rake of at least one stator blade in a stator blade and other stator blade group inequality in each stator blade group.
From the above mentioned, because of pass through the different structure setting of profile, size or top rake of at least two group stator blades according to a kind of fan of the present invention and fan frame thereof, and the spacing of stator blade also can be unequal, when making air-flow through stator blade, on each stator blade surface, form different variation in pressure respectively, reduce the situation of superposition, avoid producing high frequency noise, and do not influence the radiating efficiency of fan.
Description of drawings
Fig. 1 is a kind of three-dimensional exploded view of known fan;
Fig. 2 a is a kind of schematic representation of known fan frame;
Fig. 2 b is a kind of schematic representation of aerofoil profile of known stator blade structure;
Fig. 3 is the three-dimensional exploded view according to a kind of fan of the preferred embodiment of the present invention;
Fig. 4 is the schematic top plan view of the fan frame of Fig. 3;
Fig. 5 is the partial schematic sectional view of the fan frame of Fig. 3;
Fig. 6 has the stator blade schematic representation of different airfoil profiles for the present invention;
Fig. 7 has the stator blade schematic representation of different chord lengths for the present invention;
Fig. 8 has any staggered schematic representation of stator blade of different airfoil profiles for the present invention; And
Fig. 9 has the schematic representation of the stator blade arranged at regular intervals of different chord lengths for the present invention.
Embodiment
Hereinafter with reference to relevant drawings, a kind of fan and fan frame thereof according to the preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference character.
With reference to Fig. 3,, comprise an impeller 21, a motor 22 and a fan frame 23 according to a kind of fan 2 of the preferred embodiment of the present invention.Impeller 21 is the impeller of an axial flow fan.Fan frame 23 comprises that a framework 231, three stator blade groups 232 and are arranged on the pedestal 233 in the framework 231.In the present embodiment, each stator blade group 232 has two stator blades 2321,2322 inequality respectively, makes stator blade 2321,2322 add up to 6.Two ends of the stator blade 2321,2322 of each stator blade group 232 are connected with pedestal 233 with framework 231 respectively.Framework 231, pedestal 233 and stator blade group 232 can be formed in one.Motor 22 is set on the pedestal 233, and drives impeller 21 is rotated in order to produce magnetic action with impeller 21.
Fig. 4 is the schematic top plan view of fan frame 23, and Fig. 5 is the partial schematic sectional view of fan frame.With reference to Fig. 4, stator blade group 232 makes stator blade 2321,2322 form is crisscross arranged that for being provided with in regular turn in addition, the top rake that stator blade 2321,2322 can be different connects pedestal 233.In the present embodiment, the top rake ∠ 1 of stator blade 2321, the top rake ∠ 2 of itself and stator blade 2322 is inequality, preferably top rake between-30 degree between 30 degree.In addition, the angular interval ∠ S of two adjacent stator blades also can be inequality, yet minimum angular interval is not less than 45 degree for good.With reference to Fig. 5, stator blade 2321,2322 has two kinds of different aerofoil profiles, and the chord length of stator blade 2321,2322 is also inequality, and the shortest chord length S2 (stator blade 2322) is not more than 80% of the longest chord length S1 (stator blade 2321).
Certainly, the stator blade 2321,2322 of stator blade group 232 can only be an aerofoil profile side-glance shape difference, as shown in Figure 6, perhaps only is the chord length difference, as shown in Figure 7.
In addition, also identical stator blade can be classified as one group, as shown in Figure 8, stator blade group 234 has mutually the same a plurality of stator blades 2341, stator blade group 235 has mutually the same a plurality of stator blades 2351, and stator blade 2341 is inequality with the aerofoil profile profile of stator blade 2351, and stator blade 2341 is staggered arbitrarily with stator blade 2351.Except the aerofoil profile profile is inequality, also can be top rake, chord length difference, stator blade 2341 also can be to each other apart from different with stator blade 2351 in addition.Refer again to Fig. 9, the stator blade 2341 of stator blade group 234 has different chord lengths with the stator blade 2351 of stator blade group 235, is in Fig. 8 main difference to be well-regulated in, stator blade 2341 and stator blade 2351 and to be spaced.Same as above, except the chord length difference, also can be top rake, chord length difference, in addition, stator blade 2341 also can be to each other apart from different with stator blade 2351.
In sum, according to a kind of fan of the present invention and fan frame thereof, by the different structure setting of profile, size or the top rake of the above stator blade of at least two groups, the spacing of stator blade also can be unequal, when making air-flow, on each stator blade surface, form different variation in pressure respectively, reduce the situation of superposition through stator blade, avoid producing high frequency noise, and do not influence the radiating efficiency of fan.
The above only is an illustrative rather than restricted.Any spirit of the present invention and category of not breaking away from all should be included in the accompanying Claim scope its equivalent modifications of carrying out or change.
Claims (20)
1, a kind of fan frame comprises:
One framework;
One pedestal is arranged in the described framework; And
A plurality of stator blade groups, each stator blade group comprises a plurality of stator blades, is separately positioned between described framework and the described pedestal,
Wherein have at least profile, size or the top rake of at least one stator blade in a stator blade and other stator blade group inequality in each stator blade group.
2, fan frame as claimed in claim 1, the stator blade in wherein said each stator blade group is differing from each other.
3, fan frame as claimed in claim 2, the spacing between the stator blade of unequal or described each the stator blade group of the spacing between each stator blade in wherein said each stator blade group and the stator blade of another stator blade group is unequal.
4, fan frame as claimed in claim 3, the angular interval of wherein said stator blade are not less than 45 degree.
5, fan frame as claimed in claim 2, the stator blade quantity that wherein said each stator blade group is had is identical.
6, fan frame as claimed in claim 5, profile, size or the top rake of the stator blade that wherein said each stator blade group is had are corresponding identical with the stator blade of other stator blade group.
7, fan frame as claimed in claim 2, the chord length of the stator blade of wherein said each stator blade group is inequality.
8, fan frame as claimed in claim 7, in the chord length of wherein said stator blade, the shortest chord length is not more than 80% of the longest chord length.
9, fan frame as claimed in claim 2, the top rake of the stator blade of wherein said each stator blade group is inequality.
10, fan frame as claimed in claim 9, wherein said top rake is between-30 degree are spent to 30.
11, fan frame as claimed in claim 2, the side-looking aerofoil profile of the stator blade of wherein said each stator blade group is inequality.
12, fan frame as claimed in claim 1, the stator blade in wherein said each stator blade group is mutually the same.
13, fan frame as claimed in claim 12, the stator blade of the stator blade of wherein said each stator blade group and other stator blade group are and are staggered arbitrarily or are arranged at regular intervals.
14, fan frame as claimed in claim 12, the spacing between the stator blade of unequal or described each the stator blade group of the spacing between each stator blade in wherein said each stator blade group and the stator blade of another stator blade group is unequal.
15, fan frame as claimed in claim 12, the chord length of the stator blade of the chord length of the stator blade of wherein said each stator blade group and another stator blade group is inequality.
16, fan frame as claimed in claim 15, in the chord length of wherein said stator blade, the shortest chord length is not more than 80% of the longest chord length.
17, fan frame as claimed in claim 12, the top rake of the stator blade of the top rake of the stator blade of wherein said each stator blade group and another stator blade group is inequality.
18, fan frame as claimed in claim 17, wherein said top rake is between-30 degree are spent to 30.
19, fan frame as claimed in claim 12, the side-looking aerofoil profile of the side-looking aerofoil profile of the stator blade of wherein said each stator blade group and the stator blade of another stator blade group is inequality.
20, a kind of fan comprises:
One impeller;
One fan frame comprises a framework, a pedestal and a plurality of stator blade group, and described pedestal is arranged in the described framework, and each stator blade group comprises a plurality of stator blades, is separately positioned between described framework and the described pedestal; And
One motor, on the sheathed described pedestal, in order to driving described wheel rotation,
Wherein have at least profile, size or the top rake of at least one stator blade in a stator blade and other stator blade group inequality in each stator blade group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100061053A CN100449157C (en) | 2006-01-16 | 2006-01-16 | Blower fan and fan frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100061053A CN100449157C (en) | 2006-01-16 | 2006-01-16 | Blower fan and fan frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101004186A CN101004186A (en) | 2007-07-25 |
| CN100449157C true CN100449157C (en) | 2009-01-07 |
Family
ID=38703524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100061053A Active CN100449157C (en) | 2006-01-16 | 2006-01-16 | Blower fan and fan frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100449157C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392750A (en) * | 2020-11-30 | 2021-02-23 | 浙江泰达微电机有限公司 | High-air-volume radiating fan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403718A (en) * | 2001-09-10 | 2003-03-19 | 台达电子工业股份有限公司 | Combined fan and fan frame structure |
| US20040033135A1 (en) * | 2001-08-01 | 2004-02-19 | Delta Electronics Inc. | Composite heat-dissipating system and its used fan guard with additional supercharging function |
| US20040251000A1 (en) * | 2003-05-30 | 2004-12-16 | Shun-Chen Chang | Heat-dissipating device and housing thereof |
| CN1568137A (en) * | 2003-06-11 | 2005-01-19 | 台达电子工业股份有限公司 | Heat sink and fan frame structure used therefor |
| JP2005051120A (en) * | 2003-07-30 | 2005-02-24 | Asia Vital Components Co Ltd | Heat radiator having wind direction control means |
-
2006
- 2006-01-16 CN CNB2006100061053A patent/CN100449157C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040033135A1 (en) * | 2001-08-01 | 2004-02-19 | Delta Electronics Inc. | Composite heat-dissipating system and its used fan guard with additional supercharging function |
| CN1403718A (en) * | 2001-09-10 | 2003-03-19 | 台达电子工业股份有限公司 | Combined fan and fan frame structure |
| US20040251000A1 (en) * | 2003-05-30 | 2004-12-16 | Shun-Chen Chang | Heat-dissipating device and housing thereof |
| CN1568137A (en) * | 2003-06-11 | 2005-01-19 | 台达电子工业股份有限公司 | Heat sink and fan frame structure used therefor |
| JP2005051120A (en) * | 2003-07-30 | 2005-02-24 | Asia Vital Components Co Ltd | Heat radiator having wind direction control means |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101004186A (en) | 2007-07-25 |
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