CN101205933B - Airflow commutating device and serial fan - Google Patents
Airflow commutating device and serial fan Download PDFInfo
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- CN101205933B CN101205933B CN2006101717322A CN200610171732A CN101205933B CN 101205933 B CN101205933 B CN 101205933B CN 2006101717322 A CN2006101717322 A CN 2006101717322A CN 200610171732 A CN200610171732 A CN 200610171732A CN 101205933 B CN101205933 B CN 101205933B
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- fan
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- commutating device
- airflow
- commutator lug
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Abstract
The invention provides an airflow rectification device which is connected between two fans with the same steering direction. The invention comprises a body and a plurality of rectifier cells, wherein,the rectifier cells are connected with the body; each rectifier cell corresponds with a stator blade of an upstream fan to form a whole guide component. The invention also discloses a serial fan with the airflow rectification device.
Description
Technical field
The present invention is about a kind of airflow commutating device and serial fan, especially in regard to a kind of airflow commutating device and serial fan that promotes series connection usefulness.
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, therefore heat radiation has become one of important topic of present electronic product, is to be common structure setting and utilize fan as sink, wherein in order to strengthen heat dissipation, and can be with a plurality of fan series connection.
Please refer to Fig. 1, a kind of traditional serial fan 1 by a upstream fan 11 and once urticaria fan 12 be composed in series.Wherein, upstream fan 11 has a fan frame 111 and an impeller 112, and impeller 112 is arranged in the fan frame 111, and has a plurality of flabellums 1121 and a wheel hub 1122, and flabellum 1121 links with wheel hub 1122; Upstream fan 11 also has a plurality of stator blades 113, and it links with fan frame 111.In addition, downstream fan 12 also has fan frame 121, an impeller 122 and an a plurality of stator blade 123, and impeller 122 also has a plurality of flabellums 1221 and a wheel hub 1222; The structure setting of downstream fan 12 is identical with upstream fan 11, and the two also has identical turning to (shown in arrow among the figure), and serial fan 1 combination back is as Fig. 2.
The action situation of air-flow in serial fan 1 please refer to shown in Figure 3ly, and wherein flabellum turns to R as shown in the figure.When upstream fan 11 is rotated, cause that an air-flow flow to stator blade 113 by flabellum 1121.Yet, when air-flow is directed to downstream fan 12 by stator blade 113 again, air-flow is led to the low pressure area L of flabellum 1221, the zone of high pressure H of flabellum 1221 and the pressure reduction of low pressure area L are diminished, and by the air-flow of stator blade 113 guiding, its near vertical is in the blade profile of flabellum 1221, and non-parallel, therefore these factors all make the usefulness of downstream fan 12 significantly reduce, and also reduce the blast exported fan series connection back and air quantity and influence usefulness.
Therefore, how to provide a kind of airflow commutating device and serial fan blast and air quantity with raising output, and then promote overall efficiency, real is one of important topic.
Summary of the invention
Because above-mentioned problem, purpose of the present invention is for providing a kind of blast and air quantity that can improve output, and then promotes the airflow commutating device and the serial fan of overall efficiency.
Edge is for reaching above-mentioned purpose, to be linked between two identical serial fans that turn to according to a kind of airflow commutating device of the present invention, and to comprise a body and a plurality of commutator lug.Commutator lug is linked to body, corresponding formation one conducting element of stator blade of each commutator lug and upstream fan.
For reaching above-mentioned purpose, comprise two fans and an airflow commutating device according to a kind of serial fan of the present invention.Fan is to turn to series connection to be provided with identical; Airflow commutating device is linked between the fan, and has a body and a plurality of commutator lug, and commutator lug is linked to body, corresponding formation one conducting element of stator blade of each commutator lug and upstream fan.
From the above, because of forming a conducting element by the stator blade of a plurality of commutator lugs and upstream fan according to a kind of airflow commutating device of the present invention and serial fan, not only strengthen the rectification effect that stator blade had originally, and air-flow is directed to the zone of high pressure of the flabellum of downstream fan, and air-flow is close to the blade profile of the flabellum that is parallel to downstream fan, these structures are provided with and all make the usefulness of downstream fan significantly promote, and also therefore improve blast and the air quantity that serial fan is exported, and then promote overall efficiency.
Description of drawings
Fig. 1 is a kind of exploded view of traditional serial fan;
Fig. 2 is the ssembly drawing of the serial fan of Fig. 1;
Fig. 3 is the schematic representation of air-flow start in the serial fan of Fig. 2;
Fig. 4 is the exploded view according to a kind of serial fan of the preferred embodiment of the present invention;
Fig. 5 is the ssembly drawing of the serial fan of Fig. 4;
Fig. 6 is the schematic representation of air-flow start in the serial fan of Fig. 5; And
Fig. 7 is the fan performance plotted curve of the serial fan of the traditional serial fan and the preferred embodiment of the present invention.
The element numbers explanation:
1,2 serial fans, 11 upstream fan
111,121,211,221 fan frames, 112,122,212,222 impellers
1121,1221,2121,2221 flabellums
1122,1222,2122,2222 wheel hubs
113,123,213,223 stator blades, 12 downstream fan
21,22 fans, 23 airflow commutating devices
231 bodies, 232 commutator lugs
233 joint H zone of high pressure
L low pressure area R flabellum turns to
Embodiment
Hereinafter with reference to relevant drawings, a kind of airflow commutating device and serial fan according to the preferred embodiment of the present invention are described, wherein identical assembly will be illustrated with identical reference marks.
Please refer to Fig. 4, a kind of serial fan 2 of the preferred embodiment of the present invention comprises two fans 21,22 and an airflow commutating device 23.Wherein, fan the 21, the 22nd is provided with identical turning to (shown in arrow among the figure) series connection.Airflow commutating device 23 is linked between the fan 21,22, and has a body 231 and a plurality of commutator lug 232, and an end of commutator lug 232 is linked to body 231; In addition, airflow commutating device 23 also comprises a junction 233, and the other end of commutator lug 232 and joint 233 link; The commutator lug 232 of present embodiment can be and is symmetrical arranged or asymmetric setting.
In present embodiment, fan 21 is as upstream fan, and fan 22 is as downstream fan.Wherein, fan 21 has a fan frame 211 and an impeller 212, and impeller 212 is arranged in the fan frame 211, and has a plurality of flabellums 2121 and a wheel hub 2122, and flabellum 2121 links with wheel hub 2122; In addition, fan 21 also has a plurality of stator blades 213, and it links with fan frame 211.And fan 22 has a fan frame 221 and an impeller 222 equally, and impeller 222 is arranged in the fan frame 221, and has a plurality of flabellums 2221 and a wheel hub 2222, and flabellum 2221 links with wheel hub 2222; Fan 22 also has a plurality of stator blades 223, and it links with fan frame 221.The fan 21,22 of present embodiment can be axial flow fan, and fan 21,22 can be identical formation, also can inequalityly constitute, but need turn to identical.
The body 231 of airflow commutating device 23 links with the fan frame of fan 21,22 211,221, and mode of connection can be engaging, sealed, chimeric or bonding, after serial fan 2 makes up as shown in Figure 5.
The action situation of air-flow in serial fan 2 please refer to shown in Figure 6ly, and wherein flabellum turns to R as shown in the figure.After serial fan 2 combination, stator blade 213 corresponding formation one conducting elements of each commutator lug 232 and fan 21.In this, the number of commutator lug 232 is identical with the number of stator blade 213.In the present embodiment, the structure of the stator blade 213 of fan 21 can be considered a half-crescent shape, commutator lug 232 can be considered second half crescent moon, and stator blade 213 and commutator lug 232 are after being assembled, promptly form structure shape and be a continuous conducting element with the air-guiding direction, the person of noting, the above-mentioned corresponding conducting element that forms, only non-in order to restriction the present invention for illustrating, and commutator lug 232 also can not need identical with the number and the shape of stator blade 213.In addition, the shape and structure of commutator lug 232 can be convergent (as shown in the figure), etc. width extend or flaring.
When fan 21 rotates, cause that an air-flow flow to stator blade 213 and commutator lug 232 by flabellum 2121, because stator blade 213 forms a conducting element with commutator lug 232, except having rectification effect, can promote outside the fan usefulness, also can connect the air-out of upstream and downstream fan and the zone of high pressure H of inlet air, usefulness thereby significantly be better than only having the usefulness that serial fan produced of stator blade 213.
Please refer to Fig. 7, the present invention also carries out an experimental analysis at traditional serial fan 1 and the serial fan 2 that the present invention has airflow commutating device 23, and wherein fan performance is with curve representation
X-axis is represented air quantity, and Y-axis is represented blast; Show according to laboratory data, when same rotational speed, the significantly lifting that blast that the present invention exported and air quantity are all more traditional.
In sum, because of forming a conducting element by the stator blade of a plurality of commutator lugs and upstream fan according to a kind of airflow commutating device of the present invention and serial fan, not only strengthen rectification effect, and air-flow is directed to the zone of high pressure H of the flabellum of downstream fan, and air-flow is close to the blade profile of the flabellum that is parallel to downstream fan, these structures are provided with and all make the usefulness of downstream fan significantly promote, and also therefore improve blast and the air quantity that serial fan is exported, and then promote overall efficiency.
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 accompanying Claim book its equivalent modifications of carrying out or change.
Claims (12)
1. an airflow commutating device is linked between two identical serial fans that turn to, and comprising:
One body; And
A plurality of commutator lugs are linked to this body, and an end of the stator blade of the fan that is in the upstream in an end of each described commutator lug and described two the identical serial fans that turn to aligns and corresponding formation one conducting element, with the air-guiding direction.
2. airflow commutating device according to claim 1, the wherein direction and the described switched in opposite that is in the fan of upstream of this commutator lug bending.
3. airflow commutating device according to claim 1, wherein said commutator lug is for being symmetrical arranged or asymmetric setting.
4. airflow commutating device according to claim 1, wherein said fan are axial flow fan.
5. airflow commutating device according to claim 1, wherein the fan frame of this body and described fan links.
6. airflow commutating device according to claim 5, wherein mode of connection is engaging, sealed, chimeric or bonding.
7. serial fan comprises:
Two fans are to turn to series connection to be provided with identical; And
One airflow commutating device, be linked between described two fans, and have a body and an a plurality of commutator lug, each described commutator lug is linked to this body, one end of the stator blade of the fan that is in the upstream in one end of each described commutator lug and described two fans aligns and forms a conducting element, with the air-guiding direction.
8. serial fan according to claim 7, the wherein direction and the described switched in opposite that is in the fan of upstream of this commutator lug bending.
9. serial fan according to claim 7, wherein said commutator lug is for being symmetrical arranged or asymmetric setting.
10. serial fan according to claim 7, wherein said fan are axial flow fan.
11. serial fan according to claim 7, wherein the fan frame of this body and described fan links.
12. serial fan according to claim 11, wherein mode of connection is engaging, sealed, chimeric or bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101717322A CN101205933B (en) | 2006-12-19 | 2006-12-19 | Airflow commutating device and serial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101717322A CN101205933B (en) | 2006-12-19 | 2006-12-19 | Airflow commutating device and serial fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101205933A CN101205933A (en) | 2008-06-25 |
| CN101205933B true CN101205933B (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101717322A Active CN101205933B (en) | 2006-12-19 | 2006-12-19 | Airflow commutating device and serial fan |
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| Country | Link |
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| CN (1) | CN101205933B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2700821A3 (en) * | 2012-08-24 | 2017-03-08 | Sanyo Denki Co., Ltd. | Inline axial flow fan |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899578B (en) * | 2012-12-26 | 2016-12-28 | 建准电机工业股份有限公司 | Tandem fan frame |
| CN105784031B (en) * | 2016-02-29 | 2019-10-15 | 浙江天信超声技术有限公司 | A kind of gas rectifying device |
| JP6817754B2 (en) * | 2016-09-12 | 2021-01-20 | 日本電産コパル電子株式会社 | CPAP device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663343B1 (en) * | 2002-06-27 | 2003-12-16 | Sea Solar Power Inc | Impeller mounting system and method |
| CN1566711A (en) * | 2003-06-10 | 2005-01-19 | 建准电机工业股份有限公司 | Series connection module of heat radiation fan |
| CN2679401Y (en) * | 2004-01-12 | 2005-02-16 | 陈申岳 | Commutation coupler structure of series same steering axial fan |
| CN1746511A (en) * | 2004-09-08 | 2006-03-15 | 台达电子工业股份有限公司 | Fan |
| CN101050773A (en) * | 2006-04-03 | 2007-10-10 | 台达电子工业股份有限公司 | Series fan and its flow guide structure |
-
2006
- 2006-12-19 CN CN2006101717322A patent/CN101205933B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663343B1 (en) * | 2002-06-27 | 2003-12-16 | Sea Solar Power Inc | Impeller mounting system and method |
| CN1566711A (en) * | 2003-06-10 | 2005-01-19 | 建准电机工业股份有限公司 | Series connection module of heat radiation fan |
| CN2679401Y (en) * | 2004-01-12 | 2005-02-16 | 陈申岳 | Commutation coupler structure of series same steering axial fan |
| CN1746511A (en) * | 2004-09-08 | 2006-03-15 | 台达电子工业股份有限公司 | Fan |
| CN101050773A (en) * | 2006-04-03 | 2007-10-10 | 台达电子工业股份有限公司 | Series fan and its flow guide structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2700821A3 (en) * | 2012-08-24 | 2017-03-08 | Sanyo Denki Co., Ltd. | Inline axial flow fan |
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| Publication number | Publication date |
|---|---|
| CN101205933A (en) | 2008-06-25 |
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