CN101265923B - Fan and its fan frame - Google Patents
Fan and its fan frame Download PDFInfo
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- CN101265923B CN101265923B CN2007100857791A CN200710085779A CN101265923B CN 101265923 B CN101265923 B CN 101265923B CN 2007100857791 A CN2007100857791 A CN 2007100857791A CN 200710085779 A CN200710085779 A CN 200710085779A CN 101265923 B CN101265923 B CN 101265923B
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- fan
- flow guide
- guide structure
- exhaust outlet
- housing
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Abstract
The invention discloses a fan frame with an air inlet and an air outlet, which comprises a casing, a base and at least one connector. The base is arranged at the air outlet and the connector is arranged between the casing and the base. The base is provided with a first stream-guidance structure arranged at the periphery of the base and the casing is provided with a second stream-guidance structure arranged at the inner periphery and adjacent to the air outtake. The first stream-guidance structure and the second stream-guidance structure are arranged corresponding to each other.
Description
Technical field
The present invention relates to a kind of fan and fan frame thereof, but particularly relate to a kind of noise-decreasing and the fan that can improve work efficiency and fan frame thereof.
Background technique
The task performance of fan is that the blast and the air quantity that can produce with fan is index, and in order to improve blast and air quantity, it is one of approach that rotation speed of the fan is improved, yet after improving rotation speed of the fan, noise also produces thereupon.Therefore, desire head it off, existing technology is by changing the design of flabellum, solve the problem that high rotating speed is supervened noise, but this kind mode difficulty height being difficult for realistic demand.In the integrally-built design of fan, the design that changes the fan frame is the mode that another kind can improve fan work usefulness.
Fig. 1 is the sectional view of existing fan.Existing fan 1 has a fan frame 10, and fan frame 10 comprises that a housing 103, a base 104 and at least one link 105 connect housing 103 and base 104.Fan frame 10 has a wind inlet 101 and an exhaust outlet 102, base 104 is arranged at exhaust outlet 102, housing 103 in wind inlet place 101 and exhaust outlet place 102 have first lead angle 108 and second lead angle 109 respectively, first lead angle 108 and second lead angle 109 are an inclined design, import and derive with secondary air.
Yet, after air-flow is imported by wind inlet 101, because base 104 is a vertical arrangement, therefore be directly air-flow to be derived, that is to the not effect of pressurization of air-flow, when airflow passes exhaust outlet place 102, second lead angle 109 is an inclined design, therefore, air-flow is directly derived via the exhaust outlet place, and air-flow is not produced the effect of concentrating.Air-flow can form eddy current at exhaust outlet 102 places after exhaust outlet 102 is derived, cause air-flow to extend out and produce noise, and then influence the task performance of fan.
Therefore, how to provide a kind of fan and fan frame thereof, avoid forming the noise that eddy current produces when reducing fan running at fan outlet, and then improve the task performance of fan, real is one of important topic.
Summary of the invention
Because above-mentioned problem, the object of the present invention is to provide a kind of fan and fan frame thereof, the design of the flow guide structure by framework and base, it can increase the flow velocity of air-flow, to improve the air quantity and the blast of fan, and can avoid at fan outlet place formation eddy current the noise that produces during with the reduction fan running.
In order to reach above-mentioned or other purposes, the present invention proposes a kind of fan frame, has a wind inlet and an exhaust outlet, and the fan frame comprises a housing, a base, at least one link.Base is positioned at exhaust outlet, and link is arranged between housing and the base.Base has the periphery that one first flow guide structure is arranged at base, and housing has one second flow guide structure and is arranged at inner circumference edge and is adjacent to exhaust outlet, first flow guide structure and the corresponding each other setting of second flow guide structure.
For reaching above-mentioned or other purposes, the present invention proposes a kind of fan in addition, comprises fan frame, an impeller and a motor.The fan frame has a wind inlet and an exhaust outlet, and the fan frame comprises a housing, a base, at least one link.Base is positioned at this exhaust outlet, and link is arranged between housing and the base.Base has the periphery that one first flow guide structure is arranged at base, and housing has one second flow guide structure and is arranged at the periphery inboard and is adjacent to exhaust outlet, first flow guide structure and the corresponding each other setting of second flow guide structure.Impeller and motor are arranged in the fan frame, and wherein motor is arranged in the impeller and impeller passes through motor driven.
In fan of the present invention and fan frame thereof, owing to have the flow guide structure that is arranged at base and fan circle body respectively, when the airflow passes exhaust outlet is derived, can concentrate and not to external diffusion.With existing fan in comparison, fan of the present invention can increase the flow velocity of air-flow at exhaust outlet, and then improves the air quantity and the blast of fan, and can avoid forming eddy current at the fan outlet place, to reduce the noise that fan is produced in the running.
Description of drawings
Fig. 1 is a kind of sectional view of existing fan;
Fig. 2 is the sectional view of a kind of fan of preferred embodiment of the present invention; And
Fig. 3 is fan of the present invention and the air quantity of existing fan and the relation curve comparison diagram of blast.
The element numbers explanation:
Wind inlet 101,201 first flow guide structures 206
Exhaust outlet 102,202 second flow guide structures 207
Housing 103,203 lead angles 208
Base 104,204 wheel hubs 211
Link 105,205 flabellums 212
Embodiment
Hereinafter with reference to correlative type, a kind of fan and fan frame thereof according to preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference marks.
Fig. 2 is the sectional view of the fan of a preferred embodiment of the present invention.See also Fig. 2, a kind of fan 2 of preferred embodiment of the present invention is an axial flow fan preferably, comprises fan frame 20, an impeller 21 and a motor 22.Impeller 21 and motor 22 are placed in the fan frame 20, and fan frame 20 comprises the housing 203 with a through hole, and framework roughly is square, circular, ellipse or rhombus.In addition, fan frame 20 comprises a base 204 and at least one link 205, and link 205 is arranged between housing 203 and the base 204, in order to base for supporting 204.In the present embodiment, link 205 for example is a plurality of ribs (rib) or stator blade (stationary blade), and with base 204 and housing 203 one-body molded making.In addition, impeller 21 includes the periphery that a wheel hub 211 and a plurality of flabellum 212 are located on wheel hub 211, and the outer wind inlet without leave of wheel hub 211 increases progressively gradually towards the exhaust outlet direction.Motor 22 is arranged at wheel hub 211 inside, and impeller 21 is positioned on the base 204 of fan frame, and impeller 21 drives by motor 22 and rotated.
Please continue with reference to Fig. 2, in the present embodiment, base 204 includes first flow guide structure 206, and exhaust outlet place 202, the first flow guide structures 206 that base 204 preferably is arranged at fan are arranged at the periphery of base 204 and are adjacent to exhaust outlet place 202.Wheel hub 211 has curved surface or inclined-plane, corresponding to the contour shape of first flow guide structure 206.Fan frame 20 has second flow guide structure 207, second flow guide structure 207 is arranged at the inboard and contiguous exhaust outlet of the periphery place 202 of the housing 203 of fan frame, wherein first flow guide structure 206 and the corresponding each other setting of second flow guide structure 207, and first flow guide structure 206 and second flow guide structure 207 respectively with base 204 and housing 203 one-body molded making.
It should be noted that, accelerate and reduce the noise of fan for the gas flow rate that makes the fan 2 of flowing through, first flow guide structure 206 of the present invention and second flow guide structure 207 have at least one inclined-plane and/or at least one curved surface, in other words, with first flow guide structure 206 is example, and it has single inclined-plane, single curved surface, a plurality of inclined-plane, a plurality of curved surface and/or its combination and constitutes.In the present embodiment, first flow guide structure 206 has an inclined-plane, and 203 directions are extended along exhaust outlet 202 towards housing, therefore, and when airflow passes first flow guide structure, because the runner reduction, so air-flow is concentrated.Second flow guide structure 207 of the present invention has a curved surface, and the radius of curvature of curved surface system successively decreases along the direction of exhaust outlet 202, and a tangent line direction and the exhaust outlet 202 at the contiguous exhaust outlet of radius of curvature place 202 be approximate vertical, so can make air-flow not to external diffusion.
In addition, in the present embodiment, framework 203 has a lead angle 208 in wind inlet place 201.When motor 22 runnings and impeller 21 rotations, via the running that is arranged at flabellum 212 on the wheel hub 211, make fan 2 and the extraneous pressure difference that produces, therefore, air-flow is entered by wind inlet 201 and enters in the fan frame by lead angle 208 guidings, and flows toward exhaust outlet 202 directions.When air-flow enters in the fan frame via lead angle 208 guiding and during through first flow guide structure 206 and second flow guide structure 207, because the design of first flow guide structure 206 of the present invention, make runner reduce, can cause air-flow to produce and push and make the air-flow velocity quickening, simultaneously, stream pressure is improved.The curved design of second flow guide structure 207 then changes the flow direction of air-flow, and when making air-flow flow out exhaust outlet 202, airflow direction is vertical with exhaust outlet 202, avoids forming eddy current in exhaust outlet 202 noise of generation when reducing fan 2 runnings.
Fig. 3 is the blast and the air quantity characteristic figure of existing fan and fan of the present invention, by laboratory data as can be known, fan of the present invention can improve air quantity and blast effectively, under identical air quantity, fan of the present invention compared to existing fan, its maximum wind pressure approximately improves 17%.
In sum, fan of the present invention has following advantages:
Utilization of the present invention is arranged at the flow-guiding structure of fan on the frame, when the airflow passes air outlet is derived, can concentrate and not to external diffusion. Compared with prior art, fan frame of the present invention can increase air-flow at the flow velocity of air outlet, and then improves air quantity and the blast of fan, and can avoid forming eddy current at fan outlet the noise that is produced in the running to reduce fan.
The above only is illustrative, but not is restricted person. Anyly do not break away from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in the appended claim.
Claims (15)
1. a fan frame has a wind inlet and an exhaust outlet, and this fan frame comprises:
One housing;
One base is positioned at this exhaust outlet; And
At least one link is arranged between this housing and this base;
Wherein this base has periphery and contiguous this exhaust outlet that one first flow guide structure is arranged at this base, and this first flow guide structure has at least one inclined-plane and/or at least one curved surface, and this first flow guide structure extends towards this housing along this exhaust outlet; This housing has one second flow guide structure and is arranged at the inner circumference edge of this housing and is adjacent to this exhaust outlet, this first flow guide structure and the corresponding each other setting of this second flow guide structure.
2. fan frame as claimed in claim 1, wherein this first flow guide structure and this base are integrated structures.
3. fan frame as claimed in claim 1, wherein this second flow guide structure and this housing are integrated structures.
4. fan frame as claimed in claim 1, wherein to have be a curved surface to this second flow guide structure, the radius of curvature of this curved surface is successively decreased along this exhaust outlet direction.
5. fan frame as claimed in claim 4, wherein a tangent line direction and this exhaust outlet at contiguous this exhaust outlet place of the radius of curvature of this curved surface are approximate vertical.
6. fan frame as claimed in claim 1, the structure that is one of the forming of this link and this base and this housing wherein, this link comprises a plurality of ribs or stator blade, this housing is general square shape, circle, ellipse or rhombus.
7. fan comprises:
One fan frame comprises:
One wind inlet and an exhaust outlet;
One housing;
One base is positioned at this exhaust outlet; And
At least one link is arranged between this housing and this base, and wherein this base has periphery and contiguous this exhaust outlet that one first flow guide structure is arranged at this base, makes the runner reduction of air-flow; This first flow guide structure has an inclined-plane and/or at least one curved surface, and this first flow guide structure extends towards this housing along exhaust outlet;
One impeller is arranged in this fan frame; And
One motor is arranged in the wheel hub of this impeller, and this impeller is by this motor driven.
8. fan as claimed in claim 7, wherein this housing has inner circumference edge and contiguous this exhaust outlet that one second flow guide structure is arranged at this housing, and this first flow guide structure is corresponding each other setting with this second flow guide structure.
9. fan as claimed in claim 7, wherein this first flow guide structure and this base are integrated structures.
10. fan as claimed in claim 8, the wherein structure that is formed in one of this second flow guide structure and this housing.
11. fan as claimed in claim 8, wherein this second flow guide structure has a curved surface, and the radius of curvature of this curved surface is successively decreased along this exhaust outlet direction.
12. fan as claimed in claim 11, wherein a tangent line direction and this exhaust outlet at contiguous this exhaust outlet place of the radius of curvature of this curved surface are approximate vertical.
13. fan as claimed in claim 7, the structure that is one of the forming of this link and this base and this housing wherein, this link comprises a plurality of ribs or stator blade, this housing is general square shape, circle, ellipse or rhombus.
14. fan as claimed in claim 7, wherein the external diameter of this wheel hub is to increase progressively gradually towards this exhaust outlet direction from this wind inlet.
15. fan as claimed in claim 7, wherein this wheel hub has a curved surface or inclined-plane, corresponding to the profile of this first flow guide structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100857791A CN101265923B (en) | 2007-03-14 | 2007-03-14 | Fan and its fan frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100857791A CN101265923B (en) | 2007-03-14 | 2007-03-14 | Fan and its fan frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101265923A CN101265923A (en) | 2008-09-17 |
| CN101265923B true CN101265923B (en) | 2011-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100857791A Active CN101265923B (en) | 2007-03-14 | 2007-03-14 | Fan and its fan frame |
Country Status (1)
| Country | Link |
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| CN (1) | CN101265923B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832277B (en) * | 2009-03-12 | 2013-10-23 | 台达电子工业股份有限公司 | Fan and guide structure thereof |
| CN101832276B (en) * | 2009-03-12 | 2013-12-04 | 台达电子工业股份有限公司 | Fan and guide structure thereof |
| CN102478027B (en) * | 2010-11-22 | 2015-06-03 | 台达电子工业股份有限公司 | Fan assembly and runner device thereof |
| CN102878117A (en) * | 2012-06-29 | 2013-01-16 | 中国船舶重工集团公司第七0九研究所 | Exhaust blower with outlet air guiding plate |
| CN104329276A (en) * | 2014-11-28 | 2015-02-04 | 德清振达电气有限公司 | Efficient mute axial flow fan |
| CN104389821A (en) * | 2014-11-28 | 2015-03-04 | 德清振达电气有限公司 | Silent axial fan blade |
| CN104389797A (en) * | 2014-11-28 | 2015-03-04 | 德清振达电气有限公司 | Low-power-consumption axial fan |
| CN109268285B (en) * | 2017-07-18 | 2020-06-02 | 台达电子工业股份有限公司 | Supercharging fan structure |
| DE102018128792A1 (en) * | 2018-11-16 | 2020-05-20 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Compact diagonal fan with guide device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992029A (en) * | 1985-11-08 | 1991-02-12 | Papst Motoren Gmbh & Co. | Miniature axial fan |
| CN2417315Y (en) * | 2000-03-03 | 2001-01-31 | 高东旗 | Centrifugical and double disc type cooling fan |
| CN2553152Y (en) * | 2002-05-21 | 2003-05-28 | 建准电机工业股份有限公司 | Shell seat structure for electric fan |
| CN1724876A (en) * | 2004-07-20 | 2006-01-25 | 台达电子工业股份有限公司 | Shading fan |
| CN1746513A (en) * | 2004-09-06 | 2006-03-15 | 台达电子工业股份有限公司 | Radiating fan and base of fan frame |
| CN2846825Y (en) * | 2005-09-23 | 2006-12-13 | 邹韬韵 | Streamlined axial flow fan with conical air outlet tube |
| CN1908447A (en) * | 2005-08-05 | 2007-02-07 | 富准精密工业(深圳)有限公司 | Radiation fan |
-
2007
- 2007-03-14 CN CN2007100857791A patent/CN101265923B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992029A (en) * | 1985-11-08 | 1991-02-12 | Papst Motoren Gmbh & Co. | Miniature axial fan |
| CN2417315Y (en) * | 2000-03-03 | 2001-01-31 | 高东旗 | Centrifugical and double disc type cooling fan |
| CN2553152Y (en) * | 2002-05-21 | 2003-05-28 | 建准电机工业股份有限公司 | Shell seat structure for electric fan |
| CN1724876A (en) * | 2004-07-20 | 2006-01-25 | 台达电子工业股份有限公司 | Shading fan |
| CN1746513A (en) * | 2004-09-06 | 2006-03-15 | 台达电子工业股份有限公司 | Radiating fan and base of fan frame |
| CN1908447A (en) * | 2005-08-05 | 2007-02-07 | 富准精密工业(深圳)有限公司 | Radiation fan |
| CN2846825Y (en) * | 2005-09-23 | 2006-12-13 | 邹韬韵 | Streamlined axial flow fan with conical air outlet tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101265923A (en) | 2008-09-17 |
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