CN101429946A - Multi-impeller fan - Google Patents
Multi-impeller fan Download PDFInfo
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- CN101429946A CN101429946A CNA2007101666861A CN200710166686A CN101429946A CN 101429946 A CN101429946 A CN 101429946A CN A2007101666861 A CNA2007101666861 A CN A2007101666861A CN 200710166686 A CN200710166686 A CN 200710166686A CN 101429946 A CN101429946 A CN 101429946A
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- impeller
- fan
- impeller fan
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- rotation
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Abstract
The invention discloses a multi-impeller fan, which comprises a framework and a plurality of impellers, wherein the impellers are arranged inside the framework, and the rotating direction of the impellers is opposite to that of adjacent impellers. The multi-impeller fan has the function of reducing the fan noise and the fan vibration.
Description
Technical field
The present invention relates to a kind of fan, particularly relate to a kind of multi-impeller fan.
Background technique
Because science and technology is flourishing, telecommunications now, computing, or machine operation usefulness promotes significantly, so at power consumption under the big or board fast turn-around, if the heat energy that corresponding generation is a large amount of, this heat energy is unsuitable eliminating, causes operating temperature too high and cause electronics, mechanical equipment fault to lose efficacy easily, even produce danger, therefore must deal carefully with heat dissipation problem.
Please refer to Fig. 1, be to increase the heat dissipation of system, in mode side by side a plurality of fan 1a, 1b and 1c are set, and each fan 1a, 1b and 1c be fixed on the shell of an E of system with four screw S, hope can add strong convection and improve heat dissipation.
Yet,, cause fan 1a, 1b and 1c generation noise and vibration to add and take advantage of, and make noise and vibrate excessive because impeller 12 is all rotation in the same way in rotation process.In addition, too much screw S locking assembling, quite labor intensive and man-hour.
Therefore, how to provide a kind of multi-impeller fan, air quantity of fan and heat dissipation are improved, can reduce noise and vibration that fan produces simultaneously, and save assembling manpower and man-hour, become one of important topic.
Summary of the invention
Because above-mentioned problem, main purpose of the present invention is to provide a kind of multi-impeller fan, can reduce the heat dissipation of noise and vibration and lifting fan.
Because above-mentioned problem, secondary objective of the present invention is to provide a kind of multi-impeller fan, can save assembling manpower and man-hour.
Edge is for reaching above-mentioned purpose, to comprise a framework and a plurality of impeller according to a kind of multi-impeller fan of the present invention.Those impellers are arranged in the framework, and the sense of rotation of each those impeller is opposite with the sense of rotation of adjacent impeller.
The airflow direction that impeller produces according to impeller in the multi-impeller fan is and is arranged side by side, when multi-impeller fan then can be set to a multi-impeller fan group according to those fan airstream direction tandem connections when being a plurality of, the multi-impeller fan group after the serial connection is identical according to its sense of rotation of adjacent impeller of the coaxial rotation of fan group airflow direction.And the arrangement of those impellers linearly form or array format, framework is by going out a plurality of containing spaces with the integrally formed a plurality of channels separated of framework, and those impellers are separately positioned in those containing spaces, is interconnected between the containing space or is not communicated with mutually.
From the above, opposite with the sense of rotation of adjacent impeller according to a kind of multi-impeller fan of the present invention by the sense of rotation of each impeller, and only with a framework a plurality of impellers are arranged in parallel.Compare with prior art, the present invention can reduce noise and vibration, and saves assembling manpower and man-hour.In addition, the quantity of these impellers and configuration can be adjusted according to actual demand, more increase the elasticity of design.
Description of drawings
The schematic representation that Fig. 1 is arranged side by side for a kind of a plurality of existing fans;
Fig. 2 to Fig. 3 is the schematic representation according to 2 kinds of multi-impeller fans of preferred embodiment of the present invention;
Fig. 4 is to use a plurality of Fig. 2 multi-impeller fans and the multi-impeller fan group that is combined into; And
Fig. 5 is arranged side by side with existing homodromal a plurality of fans for the present invention, at the frequency and the noise content comparison chart of noise test result.
The primary component symbol description
1a, 1b, 1c: fan
2,3,4a, 4b: multi-impeller fan
21,31,41a, 41b: framework
12,22,22a, 22b, 22c, 22d, 32a, 32b, 32c, 32d, 32e, 32f, 32g, 32h: impeller
23a, 23b, 23c: divider
24a, 24b, 24c, 24d: containing space
4: the multi-impeller fan group
E: system
R1, R2: sense of rotation
S: screw
Embodiment
Hereinafter with reference to relevant drawings, a kind of multi-impeller fan according to preferred embodiment of the present invention is described, wherein components identical will be illustrated with identical reference marks.
Please refer to shown in Figure 2ly, a kind of multi-impeller fan 2 of preferred embodiment of the present invention comprises a framework 21 and a plurality of impeller 22a, 22b, 22c and 22d.In the present embodiment, the framework 21 of multi-impeller fan 2 is divided into a plurality of containing space 24a, 24b, 24c and the 24d that is arranged side by side by a plurality of divider 23a, 23b and 23c, and divider 23 can be formed in one with framework 21.Impeller 22a, 22b, 22c and 22d then are separately positioned among containing space 24a, 24b, 24c and the 24d, and are not communicated with mutually between containing space 24a, 24b, 24c and the 24d.
When impeller 22a, 22b, 22c and 22d rotated, the sense of rotation of impeller 22a, 22c was opposite with the sense of rotation of adjacent impeller 22b and 22d.Rotate along sense of rotation R1 as impeller 22a, 22c, impeller 22b, the 22d adjacent with impeller 22a, 22c rotate along sense of rotation R2, and sense of rotation R1 is a clockwise direction, and sense of rotation R2 is a counter clockwise direction.Those impellers 22a, 22b, 22c and the 22d of present embodiment is with dextrorotation veer R1 and be rotated counterclockwise direction R2 and be crisscross arranged.So, multi-impeller fan 2 can be avoided existing noise that is produced because of the identical sense of rotation of fan and vibration to add and take advantage of effect, and then can reduce noise and vibration.
Please refer to Fig. 3, another multi-impeller fan 3 of preferred embodiment of the present invention, it comprises a framework 31 and a plurality of impeller 32a, 32b, 32c, 32d, 32e, 32f, 32g, 32h.Multi-impeller fan 3 is the variation design of above-mentioned multi-impeller fan 2, and the difference of the multi-impeller fan 2 of multi-impeller fan 3 and the foregoing description is: the arrangement of those impellers 32a, 32b, 32c, 32d, 32e, 32f, 32g, 32h is array format and is arranged in the framework 31, and can be according to the number of increase in demand impeller array, to strengthen heat dissipation.The sense of rotation of impeller 32a, 32c, 32f, 32h is opposite with the sense of rotation of adjacent impeller 32b, 32d, 32e and 32g in the present embodiment, rotate along sense of rotation R1 as impeller 32a, 32c, 32f, 32h, rotate along sense of rotation R2 with impeller 32a, 32c, impeller 32b, 32d, 32e and 32g that 32f, 32h are adjacent.
Please refer to Fig. 4, multi-impeller fan group 4 also can be by being provided with a plurality of multi-impeller fan 4a, 4b in the axial series mode, and with a plurality of screw S lockings.Wherein, the airflow direction that the sense of rotation of those impellers 22 produces according to impeller 22 is and is arranged side by side, the sense of rotation of its adjacent impeller 22 is opposite each other, and the sense of rotation of adjacent impeller is identical when impeller 22 is serial connection and is provided with according to the airflow direction of its generation, be used to increase air quantity of fan, strengthen heat dissipation.Be noted that framework 41a and 41b can merge and make in one-body molded mode, with the elasticity of increase design and the convenience of assembling.
Please refer to shown in Figure 5ly, will have homodromal a plurality of fan and the multi-impeller fan of the present invention relatively frequency and the noise content size of its noise now now.Learn through reality test: during at identical frequency noise, existing noise content greatly and up and down amplitude reaches 30 decibels (dB), and the noise content of multi-impeller fan of the present invention is little and up and down amplitude only be about 10 decibels.Hence one can see that, and multi-impeller fan of the present invention has obvious effect for the inhibition of noise, and related inhibition for vibration is effective too.
In sum, opposite with the sense of rotation of adjacent impeller according to a kind of multi-impeller fan of the present invention by the sense of rotation of each impeller, and only with a framework a plurality of impellers are arranged in parallel.Compare with prior art, the present invention can reduce noise and vibration, and saves assembling manpower and man-hour.In addition, the quantity of these impellers and configuration can be adjusted according to actual demand, more increase the elasticity of 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 comprise in the appended claims its equivalent modifications of carrying out or change.
Claims (9)
1. multi-impeller fan comprises:
Framework has a plurality of openings; And
A plurality of impellers all are arranged in this framework and lay respectively in those openings, and the sense of rotation of each those impeller is opposite with the sense of rotation of adjacent impeller.
2. multi-impeller fan as claimed in claim 1, wherein those impellers are arranged side by side.
3. multi-impeller fan as claimed in claim 1, wherein linearly form or array format of the arrangement of those impellers.
4. multi-impeller fan as claimed in claim 1, wherein this framework is divided into a plurality of containing spaces by a plurality of dividers, and those impellers are separately positioned in those containing spaces.
5. multi-impeller fan as claimed in claim 1 wherein is interconnected between those containing spaces or is not communicated with mutually.
6. multi-impeller fan as claimed in claim 4, wherein those dividers and this framework are formed in one.
7. multi-impeller fan as claimed in claim 1, wherein those are already taken turns to axial flow and already take turns.
8. multi-impeller fan as claimed in claim 1 is to be connected in series each other to be provided with to form the multi-impeller fan group when wherein this multi-impeller fan is a plurality of.
9. multi-impeller fan as claimed in claim 3, the multi-impeller fan group that this serial connection is provided with is identical according to this its sense of rotation of adjacent impeller of the coaxial rotation of this fan group airflow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101666861A CN101429946A (en) | 2007-11-05 | 2007-11-05 | Multi-impeller fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101666861A CN101429946A (en) | 2007-11-05 | 2007-11-05 | Multi-impeller fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101429946A true CN101429946A (en) | 2009-05-13 |
Family
ID=40645532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101666861A Pending CN101429946A (en) | 2007-11-05 | 2007-11-05 | Multi-impeller fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101429946A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026523A (en) * | 2009-09-10 | 2011-04-20 | 日本电产株式会社 | Fan apparatus, electronic device, and fan-attached case |
| CN102588348A (en) * | 2011-01-07 | 2012-07-18 | 思考电机（上海）有限公司 | Fan motor device and electronic equipment |
| CN105298885A (en) * | 2015-11-12 | 2016-02-03 | 王泽贤 | Multi-impeller fan |
| CN109838397A (en) * | 2017-11-24 | 2019-06-04 | 李晓毅 | A kind of sound insulation wall type axial-flow fan |
| CN111434930A (en) * | 2019-01-11 | 2020-07-21 | 台达电子工业股份有限公司 | Fan frame |
-
2007
- 2007-11-05 CN CNA2007101666861A patent/CN101429946A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026523A (en) * | 2009-09-10 | 2011-04-20 | 日本电产株式会社 | Fan apparatus, electronic device, and fan-attached case |
| CN102588348A (en) * | 2011-01-07 | 2012-07-18 | 思考电机（上海）有限公司 | Fan motor device and electronic equipment |
| CN102588348B (en) * | 2011-01-07 | 2014-08-06 | 思考电机（上海）有限公司 | Fan motor device and electronic equipment |
| CN105298885A (en) * | 2015-11-12 | 2016-02-03 | 王泽贤 | Multi-impeller fan |
| CN109838397A (en) * | 2017-11-24 | 2019-06-04 | 李晓毅 | A kind of sound insulation wall type axial-flow fan |
| CN111434930A (en) * | 2019-01-11 | 2020-07-21 | 台达电子工业股份有限公司 | Fan frame |
| CN111434930B (en) * | 2019-01-11 | 2022-07-01 | 台达电子工业股份有限公司 | Fan frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090513 |