CN110285096A - Fan Anti-backflow structure - Google Patents
Fan Anti-backflow structure Download PDFInfo
- Publication number
- CN110285096A CN110285096A CN201910521875.9A CN201910521875A CN110285096A CN 110285096 A CN110285096 A CN 110285096A CN 201910521875 A CN201910521875 A CN 201910521875A CN 110285096 A CN110285096 A CN 110285096A
- Authority
- CN
- China
- Prior art keywords
- stator blade
- fan
- backflow structure
- pedestal
- fan anti
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
Abstract
The present invention provides a kind of fan Anti-backflow structure, including a framework, one first stator blade and one second stator blade, the framework has one side wall, the both ends of the side wall are respectively formed an air intake vent and an air outlet, one pedestal is correspondingly arranged at the air outlet, first stator blade is extended outwardly by the pedestal to be formed and includes plural stator blade portion, the both ends in each stator blade portion are connected with the pedestal and side wall respectively, second stator blade be set at the air outlet and in rotationally with pedestal Xiang Zushe, second stator blade sets portion and the group portion of setting with one group and protrudes outward to form plural stopper.
Description
Technical field
The present invention relates to a kind of fan Anti-backflow structures, and espespecially one kind can prevent airflow reflux to air intake vent and be substantially improved
The fan Anti-backflow structure of radiating efficiency.
Background technique
Server is to meet the needs of not powering off, and multiple fans can be configured in terms of heat dissipation design, and considers wherein to appoint
Situation when one fan fails.When a certain fan failure in server, although remaining fan remains to normal operation to execute
Heat sinking function, but the failed fan stops can not generate thrust, concedes at air outlet because pressure is greater than at air intake vent at this time
Air is back at air intake vent through the failed fan at air port, influences the heat dissipation of remaining normal operation fan indirectly.
Backflow phenomenon in order to prevent please refers to Fig. 1 and Fig. 2, in order to avoid there is fan failure to lead to air return, current one
As way be all to install the back-flow preventer 12 of a shutter form additional in each fan 1.Fan includes a framework 10, a plurality of peaces
Loaded on the blade and the integrated molding of a plurality of and framework 10 at an air intake vent 100 neighbouring in the framework 10 and a neighbouring outlet air
Stator blade 11 at mouth 101.It is rotated when the blade operates around an axle center, generation is flowed by air intake vent 100 and flowed out from air outlet 101
Air-flow.Then with the framework 10 without relative motion angle and purpose view demand is arranged and different in stator blade, it is however generally that is used to
Concentrate the wind direction spread originally, such hoisting wind pressure, back-flow preventer 12 then includes an air outlet 101 for being fixed on fan 1
It the fixed frame 120 at place and plurality of parallel is arranged in the movable part 121 in fixed frame 120.
In the case where 1 normal operation of fan, the movable part 121 of back-flow preventer 12 as shown in Figure 1 expansion and with fixation
Frame 120 surrounds the plane holder defined about an angle of 90 degrees.When 1 failure of fan, the movable part 121 of back-flow preventer 12 is then such as Fig. 2 institute
Show and close entire and be superimposed with each other, so inhibits air return at air outlet 101.
Though it, which is arranged to be equivalent to, is reduced out however, this back-flow preventer 12 can achieve the purpose that inhibit airflow reflux
Wind area, and increase by 1 integral thickness of fan and then occupy more space, in addition, existing back-flow preventer 12 is one additional
Device be installed on fan 1 be used to inhibit airflow reflux, so will cause cost and the working hour increased in many productions,
Also, these movable parts arranged in parallel will affect fan 1 and preset wind direction and wind pressure in the case where 1 normal operation of fan, damage
1 performance of fan is consumed.
The above, the prior art have the shortcomings that following:
1. airflow reflux is to air intake vent；
2. radiating efficiency is deteriorated；
3. increasing production cost and working hour.
Therefore how to solve the problems, such as above-mentioned existing and missing, the as inventor of this case and phase engaged in this industry
Shutout quotient wants to study improved direction place person.
Summary of the invention
In this way, the main purpose of the present invention is to provide one kind can prevent airflow reflux effectively to solve the problem above-mentioned
To the fan Anti-backflow structure of air intake vent.
Secondary objective of the invention is to provide a kind of fan Anti-backflow structure that radiating efficiency can be substantially improved.
Secondary objective of the invention is to provide a kind of fan anti-return knot that production cost and working hour can be greatly reduced
Structure.
In order to achieve the above object, the present invention provides a kind of fan Anti-backflow structure characterized by comprising
One framework has one side wall, and the both ends of the side wall are respectively formed an air intake vent and an air outlet, and pedestal correspondence is set
It is placed at the air outlet；
One first stator blade, is extended outwardly by the pedestal and is formed, which includes plural stator blade portion, each stator blade portion
Both ends be connected respectively with the pedestal and side wall；And
One second stator blade, be set at the air outlet and in rotationally with pedestal Xiang Zushe, second stator blade tool
There is one group to set portion, which protrudes outward to form plural stopper.
The fan Anti-backflow structure, in which: first stator blade and the framework and pedestal are integrally formed.
The fan Anti-backflow structure, in which: described group set portion and the stopper be it is integrally formed, the stopper is by this
The group portion of setting protrudes outward radial be alternatively arranged.
The fan Anti-backflow structure, in which: the peripheral side of the base bottom protrudes out to form a flange, and described group sets
Portion's correspondence is mounted on the flange.
The fan Anti-backflow structure, in which: the side wall have an inner wall and an outer wall, first stator blade it is quiet
Leaf portion is connected with the inner wall.
The fan Anti-backflow structure, in which: the stopper has a first end and a second end, the first end and institute
It states the group portion of setting to be connected, second end correspondence is contacted against to the inner wall.
The fan Anti-backflow structure, in which: the second end protrude outward to be formed a top correspondence support to institute
State inner wall.
The fan Anti-backflow structure, in which: the stopper is corresponding with the stator blade portion to be overlapped.
The fan Anti-backflow structure, in which: form a runner between the stator blade portion and stator blade portion, the runner and institute
It states air outlet to be connected, the stopper of second stator blade is correspondingly arranged at the runner.
The fan Anti-backflow structure, in which: the air intake vent and air outlet define an accommodating space jointly, the accommodating
Space correspondence is installed with an impeller and stator group.
The design of this structure through the invention, when the fan of server is under normal operation, which can be with institute
The first stator blade on fan frame body is stated in the setting that overlaps, when a wherein fan fails (such as fan failure or the wind of server
Fan shuts down when remaining static) when, at this point, angle mistake can be rotated in the second stator blade assembled on the fan frame body
Position is to enable the stopper be correspondingly arranged at the runner position formed between the stator blade portion and stator blade portion, in this way, be formed
Airflow reflux can be prevented therefore to be not necessary to add additional back-flow preventer, production is greatly decreased to a stop member of air intake vent
Cost and working hour, and can improving heat radiation efficiency.
Detailed description of the invention
Fig. 1 is the perspective view of existing fan Anti-backflow structure；
Fig. 2 is the implementation diagram of existing fan Anti-backflow structure；
Fig. 3 is the stereogram exploded view of fan Anti-backflow structure of the present invention；
Fig. 4 is the three-dimensional combination figure of fan Anti-backflow structure of the present invention；
Fig. 5 is the implementation diagram of fan Anti-backflow structure of the present invention.
Description of symbols: fan 1；Framework 10；Air intake vent 100；Air outlet 101；Stator blade 11；Back-flow preventer 12；Gu
Determine frame 120；Movable part 121；Framework 2；Side wall 20；Inner wall 200；Outer wall 201；Air intake vent 202；Air outlet 203；Accommodating space
204；Pedestal 205；Flange 206；First stator blade 21；Stator blade portion 210；Second stator blade 22；Group sets portion 220；Stopper 221；First end
221a；Second end 221b；Top 222；Runner 23；Impeller 3；Stator pack 4.
Specific embodiment
Above-mentioned purpose and its structure of the invention and characteristic functionally, the preferred embodiment according to institute's accompanying drawings is given
Explanation.
Fig. 3, Fig. 4 are please referred to, is the stereogram exploded view and three-dimensional combination figure of fan Anti-backflow structure of the invention, as schemed institute
Show, a kind of fan Anti-backflow structure, including a framework 2, one first stator blade 21 and one second stator blade 22, which has side
Wall 20, the side wall 20 are made of an inner wall 200 and an outer wall 201, the both ends of the side wall 20 be respectively formed an air intake vent 202 and
One air outlet 203, a pedestal 205 are correspondingly arranged at the air outlet 203, in addition, the air intake vent 202 and air outlet 203 are more
An accommodating space 204 is defined jointly, the accommodating space 204 correspondence has been installed with an impeller 3 and stator group 4, it should be noted that, it should
The structure of impeller 3 and the stator pack 4 is that the art person is known, repeats no more its details in this.
The pedestal 205 extends radially to form first stator blade 21 outward, which includes that plural number is quiet
Leaf portion 210, the both ends in each stator blade portion 210 are connected with the inner wall 200 of the peripheral side of the pedestal 205 and the framework 2 respectively,
And also form a runner 23 between stator blade portion 210 and stator blade portion 210 and be connected with the air outlet 203, it in this present embodiment, should
First stator blade 21 and the framework 2 and the pedestal 205 are integrally formed structures, can be according to the need of user when actual implementation
Seek after being formed separately each component above-mentioned row Xiang Zushe again, have no effect on the effect of present invention is reached, close first chat it is bright.
Second stator blade 22 be set at the air outlet 203 and in rotationally with 205 Xiang Zushe of the pedestal, into one
Step explanation, the peripheral side of 205 bottom of pedestal more protrudes out to form a flange 206, which has one group, and to set portion 220 right
It should be mounted on the flange 206, and the group sets portion 220 and protrudes outward to form plural stopper 221, in this present embodiment, described group
If portion 220 and the stopper 221 are integrally formed structures, and the stopper 221 sets portion 220 by the group and protrudes outward in radiation
Shape is alternatively arranged.
Each stopper 221 above-mentioned has a first end 221a and a second end 221b, first end 221a and corresponding institute
It stating group and sets portion 220 and be connected, then correspondence is contacted against to the inner wall 200 of the framework 2 second end 221b, it is noted that
The structure of the stopper 221 of second stator blade 22 and the stator blade portion 210 of first stator blade 21 to be arranged angle identical, because
This, when the group of the second stator blade 22 set when portion 220 is installed up on the flange 206 of the pedestal 205 and such that the second stator blade 22
The stator blade portion 210 of stopper 221 and the first stator blade 21 is in the aspect that overlaps.
In addition, it should be noted that, the stopper in the stator blade portion 210 of the first stator blade 21 of the present invention and second stator blade 22
221 systems are explained with the stator blade contour structures of fan generally on the market, but are not regarded it as and be limited, the stator blade portion 210 and stopper
221 contour structures that also can use rib replace stator blade, and conjunction is first chatted bright.
The second end 221b of aforementioned stopper 221 more protrudes outward to form a top 222, and the top 222 correspondence is supported
To the inner wall 200 of 2 side wall 20 of framework, the effect of the top 222 can avoid second stator blade 22 ceaselessly in the pedestal
It is rotated on 205 flange 206.
It is the implementation diagram of fan Anti-backflow structure of the present invention please continue to refer to Fig. 5, therefore, this is tied through the invention
The design of structure, when the fan of server is under normal operation, which can be quiet with first on the fan frame body 2
Leaf 21 is in the setting that overlaps, so that the air-flow entered by air intake vent 202 can smoothly flow to air outlet 203 and by 203 row of air outlet
Out, when a wherein fan fails (such as fan failure or fan shut down when remaining static) of server, at this point,
An angle, which can be rotated, in the second stator blade 22 assembled on the fan frame body 2 forms dislocation to enable the stopper 221 be correspondingly arranged at
It is formed by between the stator blade portion 210 and stator blade portion 210 at 23 position of runner, so inhibits the air at the air outlet 203
Reflux, in this way, form the stop member that airflow reflux can be prevented to air intake vent 202, therefore, is not necessary to add such as co-occurrence
There is the back-flow preventer that technology is additional, into production cost and working hour is greatly decreased, and can improving heat radiation efficiency.
The above, the present invention have the advantage that compared to the prior art
1. preventing airflow reflux to air intake vent；
2. radiating efficiency is substantially improved；
3. production cost and working hour is greatly decreased.
Described above to be merely exemplary for the purpose of the present invention, and not restrictive, those of ordinary skill in the art understand,
Without departing from the spirit and scope defined by the claims, can many modifications may be made, variation or equivalent, but will all fall
Enter within protection scope of the present invention.
Claims (10)
1. a kind of fan Anti-backflow structure characterized by comprising
One framework has one side wall, and the both ends of the side wall are respectively formed an air intake vent and an air outlet, and a pedestal is correspondingly arranged in
At the air outlet；
One first stator blade, is extended outwardly by the pedestal and is formed, which includes plural stator blade portion, and the two of each stator blade portion
End is connected with the pedestal and side wall respectively；And
One second stator blade is set at the air outlet and in rotationally with pedestal Xiang Zushe, second stator blade is with one
Group sets portion, which protrudes outward to form plural stopper.
2. fan Anti-backflow structure as described in claim 1, it is characterised in that: first stator blade and the framework and pedestal
It is integrally formed.
3. fan Anti-backflow structure as described in claim 1, it is characterised in that: described group set portion and the stopper be one at
Shape, the stopper protrude outward radial be alternatively arranged by the group portion of setting.
4. fan Anti-backflow structure as described in claim 1, it is characterised in that: the peripheral side of the base bottom protrudes out to be formed
One flange, the described group of portion's of setting correspondence are mounted on the flange.
5. fan Anti-backflow structure as described in claim 1, it is characterised in that: the side wall has an inner wall and an outer wall,
The stator blade portion of first stator blade is connected with the inner wall.
6. fan Anti-backflow structure as claimed in claim 5, it is characterised in that: the stopper has a first end and one second
End, the first end are connected with the described group of portion of setting, and second end correspondence is contacted against to the inner wall.
7. fan Anti-backflow structure as claimed in claim 6, it is characterised in that: the second end, which protrudes outward, to be formed one and support
Portion's correspondence is supported to the inner wall.
8. fan Anti-backflow structure as described in claim 1, it is characterised in that: the stopper and the stator blade portion are corresponding heavy
Folded setting.
9. fan Anti-backflow structure as described in claim 1, it is characterised in that: form one between the stator blade portion and stator blade portion
Runner, the runner are connected with the air outlet, and the stopper of second stator blade is correspondingly arranged at the runner.
10. fan Anti-backflow structure as described in claim 1, it is characterised in that: the air intake vent and air outlet define jointly
One accommodating space, accommodating space correspondence are installed with an impeller and stator group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521875.9A CN110285096A (en) | 2019-06-17 | 2019-06-17 | Fan Anti-backflow structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521875.9A CN110285096A (en) | 2019-06-17 | 2019-06-17 | Fan Anti-backflow structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110285096A true CN110285096A (en) | 2019-09-27 |
Family
ID=68005073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910521875.9A Pending CN110285096A (en) | 2019-06-17 | 2019-06-17 | Fan Anti-backflow structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110285096A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848158A (en) * | 2019-11-25 | 2020-02-28 | 章丽 | Anti-backflow fan for computer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599081A (en) * | 1982-09-30 | 1986-07-08 | Cohen Fred M | Artificial heart valve |
| US20060152901A1 (en) * | 2005-01-10 | 2006-07-13 | Hewlett-Packard Development Company, L.P. | Dynamically adaptable electronics cooling fan |
| US20070137647A1 (en) * | 2003-05-16 | 2007-06-21 | Ian Dampney | Expiratory valve unit |
| CN101742887A (en) * | 2008-11-14 | 2010-06-16 | 鸿富锦精密工业（深圳）有限公司 | Device for preventing air flow from refluxing and heat dissipation module provided with same |
| US20160018008A1 (en) * | 2014-01-09 | 2016-01-21 | International Business Machines Corporation | Air valve for electronics enclosures |
| US20170328484A1 (en) * | 2016-05-10 | 2017-11-16 | Hamilton Sundstrand Corporation | Check Valves |
| CN109373019A (en) * | 2018-12-17 | 2019-02-22 | 珠海格力电器股份有限公司 | Check-valves and compressor |
| CN210290272U (en) * | 2019-06-17 | 2020-04-10 | 奇鋐科技股份有限公司 | Fan backflow prevention structure |
-
2019
- 2019-06-17 CN CN201910521875.9A patent/CN110285096A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4599081A (en) * | 1982-09-30 | 1986-07-08 | Cohen Fred M | Artificial heart valve |
| US20070137647A1 (en) * | 2003-05-16 | 2007-06-21 | Ian Dampney | Expiratory valve unit |
| US20060152901A1 (en) * | 2005-01-10 | 2006-07-13 | Hewlett-Packard Development Company, L.P. | Dynamically adaptable electronics cooling fan |
| CN101742887A (en) * | 2008-11-14 | 2010-06-16 | 鸿富锦精密工业（深圳）有限公司 | Device for preventing air flow from refluxing and heat dissipation module provided with same |
| US20160018008A1 (en) * | 2014-01-09 | 2016-01-21 | International Business Machines Corporation | Air valve for electronics enclosures |
| US20170328484A1 (en) * | 2016-05-10 | 2017-11-16 | Hamilton Sundstrand Corporation | Check Valves |
| CN109373019A (en) * | 2018-12-17 | 2019-02-22 | 珠海格力电器股份有限公司 | Check-valves and compressor |
| CN210290272U (en) * | 2019-06-17 | 2020-04-10 | 奇鋐科技股份有限公司 | Fan backflow prevention structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848158A (en) * | 2019-11-25 | 2020-02-28 | 章丽 | Anti-backflow fan for computer |
| CN110848158B (en) * | 2019-11-25 | 2020-10-13 | 章丽 | Anti-backflow fan for computer |
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