CN203394829U - Fan back-flow preventer - Google Patents
Fan back-flow preventer Download PDFInfo
- Publication number
- CN203394829U CN203394829U CN201320484544.0U CN201320484544U CN203394829U CN 203394829 U CN203394829 U CN 203394829U CN 201320484544 U CN201320484544 U CN 201320484544U CN 203394829 U CN203394829 U CN 203394829U
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- Prior art keywords
- blade
- fan
- flow preventer
- blades
- edge
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- 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.)
- Expired - Fee Related
Links
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- DOSMHBDKKKMIEF-UHFFFAOYSA-N 2-[3-(diethylamino)-6-diethylazaniumylidenexanthen-9-yl]-5-[3-[3-[4-(1-methylindol-3-yl)-2,5-dioxopyrrol-3-yl]indol-1-yl]propylsulfamoyl]benzenesulfonate Chemical group C1=CC(=[N+](CC)CC)C=C2OC3=CC(N(CC)CC)=CC=C3C(C=3C(=CC(=CC=3)S(=O)(=O)NCCCN3C4=CC=CC=C4C(C=4C(NC(=O)C=4C=4C5=CC=CC=C5N(C)C=4)=O)=C3)S([O-])(=O)=O)=C21 DOSMHBDKKKMIEF-UHFFFAOYSA-N 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Abstract
The utility model discloses a fan back-flow preventer, which consists of a rectangle frame and a plurality of blades with the same shapes and structures, wherein the blades are arranged in the rectangle frame, the two ends of the blades are rotatably connected with the rectangle frame through connecting points of the blades, the blades are arranged to be a tri-prism structure, the longitudinal sections of the blades are of obtuse triangles, and the center of gravity of each blade is arranged above the rear portion of a connecting wire of two connecting points of the blade. If a fan normally works, the blades are clockwise rotated to open from the right side, and two baffle plates which can be used as support points of the blade when the blade are opened are arranged on the front portion of the rectangle frame of each blade. The fan back-flow preventer is opened by utilizing gravity when the fan normally works, overcomes the defect that a common back-flow preventer increases flow resistance of a server, and is effectively closed when the fan is damaged, thereby preventing loss of air volume, and reducing power consumption of a cooling system. The fan back-flow preventer is simple in structure and novel in design, and has excellent promotion and use value.
Description
Technical field
The utility model relates to fan part field, is specifically related to a kind of fan back-flow preventer.
Background technique
Server system is generally multi-fan configuration, when having fan to damage, can produce bypass reflux at this passage, causes server radiating air quantity significantly to reduce, and common back-flow preventer can increase server flow resistance, causes air quantity to reduce.Therefore the designing technique of existing fan back-flow preventer is further improved and develops.
Model utility content
The deficiency that the utility model exists for prior art, provides a kind of fan back-flow preventer that does not cause flow resistance loss.
Fan back-flow preventer disclosed in the utility model, the technological scheme that solve the technical problem employing is as follows: this device is comprised of the rectangular shaped rim blade identical with some structure shapes, its Leaf is arranged in rectangular shaped rim, rectangular shaped rim comprises left edge and right edge, each leaf packet is containing left surface and right flank, on the left surface of described blade and right flank, be provided with tie point, blade pass Guo Qi two ends tie point is rotatably connected with left edge and right edge; Described blade is set to triangular prism structure, and the center of gravity of each blade is positioned at the back upper place of the line of its two ends tie point, if the normal Ze Cong of fan work right side is seen blade turns clockwise and opened; Described in corresponding each blade, the front portion of left edge and right edge all arranges a block inwards, and strong point when described block is opened as blade prevents that blade from opening excessively and cannot be closed.
Further, the longitudinal section of described blade is obtuse triangle, and the left surface of blade and right flank are identical obtuse triangle; The tie point of described left surface and right flank is in the front lower place of its focus point and near long limit.
Further, on described left edge and right edge, the two ends block of corresponding each blade is in same level position.
Further, the corresponding two ends of described each blade block is arranged on the position near this blade lower end.
The beneficial effect that fan back-flow preventer disclosed in the utility model has is: this fan back-flow preventer is installed in server, during fan normal operation, utilize this device of gravity to open, eliminated the shortcoming that common back-flow preventer causes server flow resistance to increase, and this device is effectively closed when fan damages, avoid wind loss, effectively improve flow field, reduce power consumption of heat dissipation system; And this apparatus structure is simple, novel in design, there is good popularizing value.
Accompanying drawing explanation
The plan view that accompanying drawing 1 is embodiment described in the utility model;
The right elevation that accompanying drawing 2 is blade described in the utility model;
Accompanying drawing marking explanation: 1, rectangular shaped rim; 2, blade; 3, left edge; 4, right edge; 5, left surface; 6, right flank; 7, tie point; 8, focus point; 9, block.
Embodiment
Below in conjunction with accompanying drawing, fan back-flow preventer disclosed in the utility model is described in further details.
Fan back-flow preventer disclosed in the utility model, the blade 2 identical with some structures by rectangular shaped rim 1 forms, wherein rectangular shaped rim 1 comprises left edge 3 and right edge 4, each blade 2 arranges and is triangular prism structure, leaf packet is containing left surface 5 and right flank 6, on the left surface of described blade and right flank, be provided with the tie point 7 being rotatably connected with rectangular shaped rim, each blade 2 is rotatably connected and is arranged in rectangular shaped rim 1 with left edge 3 and right edge 4 respectively by two ends tie point 7; Corresponding each blade in the front portion of described left edge and right edge is respectively provided with a block 9, and two blocks that each blade is corresponding are in same level position, and strong point when two ends block is opened as blade can prevent that blade from opening excessive and cannot be closed.Further, the longitudinal section of described blade is obtuse triangle, its left surface and right flank are obtuse triangle structure, the tie point 7 of left surface and right flank below its focus point 8 and the focus point 8 of more close Chang Bian， left and right side very near with its tie point 7 distances.
Embodiment:
The selected fan back-flow preventer of the present embodiment is provided with three blades in rectangular shaped rim, and each blade is all rotatably connected with frame by the tie point of its left and right side, and blade compare great side is towards the place ahead of this device.Because the focus point of each blade is positioned at the back upper place of its two ends tie point line, when fan work is normal, utilize gravity blade automatically to open, from the right, see blade turns clockwise to open ，Cong the place ahead and see that its lower end of moving backward, blade upper end travels forward; Because the front portion of left edge and right edge is provided with block inwards, when travelling forward to a certain extent, blade lower end can be blocked by block, can prevent that like this blade from opening excessive and cannot be closed.When fan breaks down, because its tie point line of centroidal distance of blade is very near, therefore utilize the strength blade meeting closure of closing on fan.In the present embodiment, the block setting in the left edge of frame and right edge outside is triangular pyramidal structure, and according to the conformity of appearance design and stylishness requirement, block can adopt various shape.
From the technical solution of the utility model, when fan works, utilize gravity blade to open and open this back-flow preventer, eliminated the shortcoming that common back-flow preventer can cause server flow resistance to increase; And when fan damages, blade can be effectively closed, avoids wind loss, effectively improves flow field, reduces power consumption of heat dissipation system.Than common back-flow preventer, this design increases air quantity of fan more than 10%, has effectively reduced server radiating power consumption.
Except technical characteristics described in the utility model, be the known technology of those skilled in the art.
Claims (4)
1. a fan back-flow preventer, the blade identical with some shape and structures by rectangular shaped rim forms, its Leaf is arranged in rectangular shaped rim, rectangular shaped rim comprises left edge and right edge, each leaf packet is containing left surface and right flank, on the left surface of described blade and right flank, be provided with tie point, blade pass Guo Qi two ends tie point is rotatably connected with left edge and right edge respectively, it is characterized in that, described blade is set to triangular prism structure, the center of gravity of each blade is positioned at the back upper place of the line of its two ends tie point, if the normal Ze Cong of fan work sees on right side blade turns clockwise and opens, described in corresponding each blade, the front portion of left edge and right edge inwardly all arranges a block, and strong point when described block is opened as blade prevents that blade from opening excessively and cannot be closed.
2. fan back-flow preventer according to claim 1, is characterized in that, the longitudinal section of described blade is obtuse triangle, and the left surface of blade and right flank are identical obtuse triangle; The tie point of described left surface and right flank is in the front lower place of its focus point and near long limit.
3. fan back-flow preventer according to claim 1, is characterized in that, on described left edge and right edge, two blocks of corresponding each blade are in same level position.
4. fan back-flow preventer according to claim 1, is characterized in that, corresponding two blocks of described each blade are arranged on the position near this blade lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484544.0U CN203394829U (en) | 2013-08-09 | 2013-08-09 | Fan back-flow preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484544.0U CN203394829U (en) | 2013-08-09 | 2013-08-09 | Fan back-flow preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394829U true CN203394829U (en) | 2014-01-15 |
Family
ID=49906364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320484544.0U Expired - Fee Related CN203394829U (en) | 2013-08-09 | 2013-08-09 | Fan back-flow preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394829U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404371A (en) * | 2015-11-23 | 2016-03-16 | 浪潮电子信息产业股份有限公司 | Server fan regulating method considering duct synergistic effect |
| CN110593742A (en) * | 2019-09-29 | 2019-12-20 | 温州盖一机械有限公司 | Shading window with adjustable focus |
| CN110848158A (en) * | 2019-11-25 | 2020-02-28 | 章丽 | Anti-backflow fan for computer |
| WO2021073437A1 (en) * | 2019-10-14 | 2021-04-22 | 中兴通讯股份有限公司 | Slat for backflow prevention, backflow prevention apparatus, and electronic device |
| CN114828572A (en) * | 2022-04-26 | 2022-07-29 | 苏州浪潮智能科技有限公司 | Low-impedance air return preventing device |
| CN116066988A (en) * | 2023-04-04 | 2023-05-05 | 德州隆达空调设备集团有限公司 | Air quantity adjusting air valve with obtuse angle three-dimensional structure |
-
2013
- 2013-08-09 CN CN201320484544.0U patent/CN203394829U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404371A (en) * | 2015-11-23 | 2016-03-16 | 浪潮电子信息产业股份有限公司 | Server fan regulating method considering duct synergistic effect |
| CN110593742A (en) * | 2019-09-29 | 2019-12-20 | 温州盖一机械有限公司 | Shading window with adjustable focus |
| WO2021073437A1 (en) * | 2019-10-14 | 2021-04-22 | 中兴通讯股份有限公司 | Slat for backflow prevention, backflow prevention apparatus, and electronic device |
| 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 |
| CN114828572A (en) * | 2022-04-26 | 2022-07-29 | 苏州浪潮智能科技有限公司 | Low-impedance air return preventing device |
| CN114828572B (en) * | 2022-04-26 | 2023-11-03 | 苏州浪潮智能科技有限公司 | Low-impedance air return prevention device |
| CN116066988A (en) * | 2023-04-04 | 2023-05-05 | 德州隆达空调设备集团有限公司 | Air quantity adjusting air valve with obtuse angle three-dimensional structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20180809 |