CN202348782U - Anti-backflow radiating device - Google Patents
Anti-backflow radiating device Download PDFInfo
- Publication number
- CN202348782U CN202348782U CN2011203806011U CN201120380601U CN202348782U CN 202348782 U CN202348782 U CN 202348782U CN 2011203806011 U CN2011203806011 U CN 2011203806011U CN 201120380601 U CN201120380601 U CN 201120380601U CN 202348782 U CN202348782 U CN 202348782U
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- China
- Prior art keywords
- fan
- blade
- flow preventer
- sink according
- backflow
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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 - Lifetime
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Abstract
The utility model provides an anti-backflow radiating device which comprises a fan and an anti-backflow device, wherein the anti-backflow device comprises a blade and a fixing bracket, the blade is connected to the hollow region of the fixing bracket in an overturning manner, the anti-backflow device is arranged on the air inlet side of the fan; when the fan operates, the blade is opened towards the air flow direction of the fan, if not, the blade is closed; and the blade can partially or completely seal the air inlet and air outlet of the fan when being closed. Compared with the prior art, the anti-backflow radiating device disclosed by the utility model can prevent the backflow of external air flow when the fan stops operating so as to guarantee the radiating efficiency of the fan.
Description
Technical field
The utility model relates to a kind of sink, relates in particular to a kind of sink of anti-backflow.
Background technique
In the prior art, server machine generally has a plurality of fans cashier's office in a shop, is directed to especially in the complete machine cabinet server, and used fan dimension is all bigger.When each fan running; If when perhaps this fan being shut down one of them fan removal; The hot air flow that other fans recycle from the rack of server will be back in this rack through the inlets and putlets of ventilation of the fan that is removed or shuts down; As shown in Figure 1, thus cause the radiating efficiency of this rack to reduce.
Therefore, how to prevent effectively that airflow reflux from becoming present problem demanding prompt solution.
The model utility content
The purpose of the utility model provides a kind of sink of anti-backflow.
An aspect according to the utility model provides a kind of sink that is used for anti-backflow, comprises fan, it is characterized in that this device also comprises:
-back-flow preventer, it comprises blade and fixed support, said blade is turning to be connected to said support bracket fastened hollow region; This back-flow preventer places the air intake oral-lateral of said fan, wherein, and when said fan running; Said blade is opened towards the airflow direction of said fan, otherwise said blade is closed; Can partly or entirely seal the inlets and putlets of ventilation of this fan when wherein, said blade is closed.
As stated, compared with prior art, the utility model is put back-flow preventer through being sidelong at the intake grill of fan, and when fan ran well, the blade of this back-flow preventer was flipped open towards the airflow direction of this fan and opens the air channel; When fan was removed or shut down, the blade closure made outer gas stream to get into through intake grill with the inlets and putlets of ventilation sealing with this fan, thereby guaranteed the radiating efficiency of fan.
Description of drawings
Through reading the detailed description of doing with reference to following accompanying drawing that non-limiting example is done, it is more obvious that the other features, objects and advantages of the utility model will become:
Fig. 1 passes back into the schematic representation of this server cabinet for the hot air flow that recycles from server cabinet;
Fig. 2 is the sink schematic representation according to the anti-backflow of a preferred embodiment of the utility model;
Fig. 3 is the sink schematic representation according to the anti-backflow of a preferred embodiment of the utility model;
Fig. 4 is the sink schematic representation according to the anti-backflow of a preferred embodiment of the utility model;
Fig. 5 is the sink schematic representation according to the anti-backflow of a preferred embodiment of the utility model;
Fig. 6 is the schematic representation that prevents the blade reverse flip according to a preferred embodiment of the utility model;
Fig. 7 is the computer cabinet schematic representation that is equipped with according to the sink of the anti-backflow of a preferred embodiment of the utility model;
Same or analogous reference character is represented same or analogous parts in the accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 2 is the sink schematic representation according to the anti-backflow of an aspect of the utility model.Sink 1 comprises fan 11 and back-flow preventer 12, and wherein back-flow preventer 12 comprises one or more blades 121 and fixed support 122.
Followingly the structure of this sink is described in detail with reference to Fig. 2:
Particularly; Fan 11 is a kind of electrical equipment that is used to dispel the heat; This electrical equipment comprises rotor, stator and control circuit, and wherein, rotor is made up of magnet, flabellum and axle; Stator is made up of silicon steel plate, coil and bearing, and control circuit produces the inner excitatory rotor rotation that makes by the IC induced magnet N.S. utmost point via circuit its coil conducting of control.
Those skilled in the art will be understood that said fans is merely for example, and other fans existing or that possibly occur from now on also should be included in the utility model protection domain, and be contained in this with way of reference as applicable to the utility model.
Back-flow preventer 12 places the air intake oral-lateral of fan 11, and it comprises blade 121 and fixed support 122, wherein, and the blade 121 turning hollow region that are connected to fixed support 122.
At this, the shape of said hollow region includes but not limited to circle (as shown in Figure 1), rectangular, square etc.; Correspondingly, the shape that is connected to the blade 121 of this hollow region also will change, with the intake grill of sealing fan 11.
At this, the said blade 121 turning modes that are connected to fixed support 122 include but not limited to following situation:
The hollow region of-fixed support 122 has one or more rotating shafts, and each blade is connected in the corresponding rotating shaft, and can be flipped open around this rotating shaft.
The edge of the hollow region of-fixed support 122 has symmetrical groove; The left and right sides of each vane tip has a projection respectively; The projection activity of each blade is embedded in the said groove of fixed support 122, if this, blade 121 can be flipped open around the limit at its top.
The edge of the hollow region of-fixed support 122 has laterally zygomorphic groove; The both sides up and down of each blade left part or right part have a projection respectively; The projection activity of each blade is embedded in the said groove of fixed support 122; If this, blade 121 can be flipped open around the limit of its left part or right part.
Those skilled in the art will be understood that above-mentioned blade is connected to the mode that fixed support and/or blade be flipped open and is merely for example; Other blades existing or that possibly occur from now on are connected to mode that fixed support and/or blade be flipped open as applicable to the utility model; Also should be included in the utility model protection domain, and be contained in this with way of reference.
When fan 11 runnings, because the gaseous fluid of wind inlet of fan side is drawn out of, cause the blade 121 both sides formation stream pressure of back-flow preventer 12 poor, its promotion blade 121 is flipped open towards the airflow direction of fan, and is as shown in Figure 2; When fan 11 shuts down or is removed; The stream pressure difference of blade 121 both sides of back-flow preventer 12 disappears; Blade 121 can make blade closed under the effect of gravity and/or the air-negative-pressure that when adjacent fans turns round, provides, when blade 121 is closed; The intake grill of fan 11 will be closed, and will be as shown in Figure 3.
Preferably, as shown in Figure 4, back-flow preventer 12 also comprises connecting frame 123, and wherein, said connecting frame 123 1 ends are connected to fixed support 122, and the other end is connected to fan 11, and between said fixed support 122 and said fan 11, forms the space of sealing.
More preferably, all cover the intake grill cross sections of said fan when the whole blades of back-flow preventer 12 are closed, as shown in Figure 5 so that the air channel of fan 11 is closed fully, thus make back-flow preventer 12 that better anti-backflow effect is provided.
More preferably; The fixed support 122 of back-flow preventer 12 and the internal face of connecting frame 123; Remove the part that fixed support 122 connects blade 121; All use such as heat-insulating and sealing materials such as sealing foam, adhesive tape, sponge, rubber and seal, to prevent back-flow preventer 12 both sides heat exchange takes place, thereby prevent the backflow of hot air flow better.
Preferably, be flipped open under the promotion of its both sides stream pressure difference for ease of blade 121, said blade 121 can adopt lightweight material to process, and said lightweight material includes but not limited to aluminium flake, plastic tab, stainless steel thin slice etc.
Preferably; The bottom of the blade 121 of back-flow preventer 12 has catch; When blade 121 closures; One wall of this catch contacts with the wall of fixed support 122 towards fan, to prevent the variation owing to back-flow preventer 12 both sides stream pressures, causes blade 121 to be flipped open to the airflow direction that deviates from fan 11.
Alternatively, also can towards the hollow region edge of the wall of fan catch be set, be flipped open to the airflow direction that deviates from fan 11 with blocking vane 121 at fixed support 122.
Alternatively; Between the rotating shaft of blade 121 and connected fixed support 122, has hinge; One end of said hinge is connected to said rotating shaft, and the other end is connected to said blade 121, and this hinge makes blade 121 only can be flipped open towards the airflow direction of fan 11.Wherein, said hinge is to be used for connecting two solids, and allows the mechanical device that rotates between the two.
Alternatively, as shown in Figure 6, when blade 121 is closed, the bottom 1211 of this blade also can with rotating shaft 61 overlaids of adjacent blades, be flipped open to the airflow direction that deviates from fan 11 with blocking vane 121.
Those skilled in the art will be understood that and above-mentionedly prevent that blade from deviating from the mode that the airflow direction of fan opens and being merely for example; Other blades that prevent existing or that possibly occur from now on deviate from mode that the airflow direction of fan opens as applicable to the utility model; Also should be included in the utility model protection domain, and be contained in this with way of reference.
(with reference to Fig. 2) in a preferred embodiment; Back-flow preventer 12 also comprises the drive unit (not shown), below with reference to Fig. 2 the preferred embodiment is described in detail, wherein; Fan 11 in this preferred embodiment, the blade 121 in the back-flow preventer 12 and fixed support 122 and front are with reference to the blade 121 in the described fan of Fig. 2 11, the back-flow preventer 12 and the same content of fixed support 122; For for simplicity, be contained in this with way of reference, do not give unnecessary details and do not do.
Particularly, said drive unit is fixed in fixed support 122 on the wall of fan 11, and it comprises pivoted arm and stream pressure induction installation.Wherein, said pivoted arm is connected to the rotating shaft of blade 121, and can drive said rotating shaft rotation, opens and/or closure with control blade 121 '; The stream pressure that the stream pressure induction installation can be responded to around it changes.In one example, when fan 11 entrys into service, the stream pressure of its air intake oral-lateral will descend; The pressure at this place can responded to and measure to this stream pressure induction installation in real time; When the force value of measuring was lower than the first predetermined pressure threshold, drive unit was judged fan 11 entrys into service, and triggered its pivoted arm and be rotated according to the first predetermined sense of rotation; And the rotating shaft of driven vane 121 rotation, so that blade 121 is flipped open towards the airflow direction of fan; When fan 11 shuts down; The stream pressure of its air intake oral-lateral will rise, but this stream pressure induction installation real-time perception and measure the pressure at this place, when the force value of measuring is higher than the second predetermined pressure threshold; Drive unit judges that fan 11 shuts down; And trigger its pivoted arm and be rotated according to the second predetermined sense of rotation, and the rotating shaft of driven vane 121 rotation, so that blade 121 closures.
Those skilled in the art will be understood that folding of above-mentioned control blade and/or closed mode are merely for example; Other control blade foldings existing or that possibly occur from now on and/or closed mode are as applicable to the utility model; Also should be included in the utility model protection domain, and be contained in this with way of reference.
(with reference to Fig. 7) in another preferred embodiment, sink 1 are fixed in the thermovent 711 on computer cabinet 71 shells, and wherein, the back-flow preventer 12 of sink 1 places between the fan 11 of said thermovent 711 and sink 1.For example, can be fixed on through fixed support 122 on the said thermovent 711, realize being connected between sink 1 and the computer cabinet back-flow preventer 12.Wherein, said fixing mode includes but not limited to: cohere, riveted joint, bayonet socket connection, screw connection etc.
At this, said rack generally is the object that is used for depositing computer and related control device that cold rolled sheet or alloy are made, and the protection to storage equipment can be provided, shield electromagnetic interference, in order, alignment apparatus fitly, convenient later service equipment.Be divided into server cabinet, network cabinet, operating console rack etc. as the one of which.
Preferably, in said sink 1, being connected between fan 11 and the back-flow preventer 12 removably connects, if this, when fan 11 broke down, it can be for convenience detach to repair or replace.At this, said removably connecting includes but not limited to bayonet socket connection, screw connection etc.
In one example, a plurality of thermovents on the computer cabinet shell are fixed with sink 1 respectively.The fan 11 of these sinks turns round simultaneously, and the blade 121 of its back-flow preventer 12 will be flipped open towards the airflow direction of fan 11 under the promotion of its both sides stream pressure difference, dispels the heat with the heat dissipation channel of opening computer cabinet.When wherein the fan 11 of certain sink shuts down owing to breaking down; Will be under the effect of the gravity closed inlets and putlets of ventilation with this fan 11 of complete closed of the blade 121 of its back-flow preventer 12, the hot air flow of from this computer cabinet, discharging with the fan that prevents other sinks is back in this computer cabinet via the inlets and putlets of ventilation of fault fan.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and under the situation of spirit that does not deviate from the utility model or essential characteristic, can realize the utility model with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, the scope of the utility model is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are included in the utility model.Should any reference character in the claim be regarded as limit related claim.In addition, obviously other unit or device do not got rid of in " comprising " speech, and odd number is not got rid of plural number.
Claims (9)
1. the sink of an anti-backflow comprises fan, it is characterized in that, this device also comprises:
-back-flow preventer, it comprises blade and fixed support, said blade is turning to be connected to said support bracket fastened hollow region; This back-flow preventer places the air intake oral-lateral of said fan, wherein, and when said fan running; Said blade is opened towards the airflow direction of said fan, otherwise said blade is closed; Can partly or entirely seal the inlets and putlets of ventilation of this fan when wherein, said blade is closed.
2. sink according to claim 1, wherein, said blade is opened under can promoting at the blast of said air-flow.
3. sink according to claim 1 and 2, wherein, said blade is processed by lightweight material, wherein, said lightweight material comprise following each:
-aluminium flake;
-plastic tab;
-stainless steel thin slice.
4. sink according to claim 1, wherein, said back-flow preventer also comprises:
-drive unit, this drive unit is connected with the rotating shaft of said blade, and according to the running of said fan, drives said rotating shaft rotation, to control that said blade is opened and/or closed.
5. sink according to claim 1 and 2 wherein, all covers the intake grill cross section of said fan when whole blades of said back-flow preventer are closed.
6. sink according to claim 1 and 2, wherein, the periphery of the joint of said back-flow preventer and said fan uses the sealing material sealing.
7. sink according to claim 1 and 2, wherein, said blade bottom has catch, and said catch is used to prevent that said blade from deviating from the direction unlatching of said fan airstream.
8. sink according to claim 1 and 2, wherein, said device is fixed in the thermovent on the computer cabinet shell, and wherein, said back-flow preventer places between said thermovent and the said fan.
9. sink according to claim 8, wherein, said fixedly comprise following at least each:
-gluing;
-riveted joint;
-buckle connects;
-screw connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203806011U CN202348782U (en) | 2011-09-30 | 2011-09-30 | Anti-backflow radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203806011U CN202348782U (en) | 2011-09-30 | 2011-09-30 | Anti-backflow radiating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348782U true CN202348782U (en) | 2012-07-25 |
Family
ID=46537789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203806011U Expired - Lifetime CN202348782U (en) | 2011-09-30 | 2011-09-30 | Anti-backflow radiating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348782U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857259A (en) * | 2012-11-28 | 2014-06-11 | 华为机器有限公司 | Backflow prevention device, heat dissipation device having backflow prevention device and electronic equipment having backflow prevention device |
| CN105204596A (en) * | 2015-09-29 | 2015-12-30 | 联想(北京)有限公司 | Fan and electronic equipment |
| CN110094369A (en) * | 2018-01-30 | 2019-08-06 | 广达电脑股份有限公司 | Blinds fans module and the fan component with blinds fan module |
| US11533827B2 (en) | 2020-08-18 | 2022-12-20 | Western Digital Technologies, Inc. | Adhesive layered backflow preventer |
-
2011
- 2011-09-30 CN CN2011203806011U patent/CN202348782U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857259A (en) * | 2012-11-28 | 2014-06-11 | 华为机器有限公司 | Backflow prevention device, heat dissipation device having backflow prevention device and electronic equipment having backflow prevention device |
| CN103857259B (en) * | 2012-11-28 | 2017-02-22 | 华为机器有限公司 | Backflow prevention device, heat dissipation device having backflow prevention device and electronic equipment having backflow prevention device |
| CN105204596A (en) * | 2015-09-29 | 2015-12-30 | 联想(北京)有限公司 | Fan and electronic equipment |
| US10054134B2 (en) | 2015-09-29 | 2018-08-21 | Beijing Lenovo Software Ltd. | Fan and electronic device |
| CN105204596B (en) * | 2015-09-29 | 2020-09-25 | 联想(北京)有限公司 | Fan and electronic equipment |
| CN110094369A (en) * | 2018-01-30 | 2019-08-06 | 广达电脑股份有限公司 | Blinds fans module and the fan component with blinds fan module |
| US11533827B2 (en) | 2020-08-18 | 2022-12-20 | Western Digital Technologies, Inc. | Adhesive layered backflow preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |