CN201167447Y - Radiating device for electronic appliances - Google Patents
Radiating device for electronic appliances Download PDFInfo
- Publication number
- CN201167447Y CN201167447Y CNU2008200039529U CN200820003952U CN201167447Y CN 201167447 Y CN201167447 Y CN 201167447Y CN U2008200039529 U CNU2008200039529 U CN U2008200039529U CN 200820003952 U CN200820003952 U CN 200820003952U CN 201167447 Y CN201167447 Y CN 201167447Y
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- CN
- China
- Prior art keywords
- check valve
- valve sheet
- fan
- heat abstractor
- air deflector
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a heat radiating device used for electronic equipment. The heat radiating device comprises a panel, a fan set including at least two fans, air ducts which are arranged between the fan set and the panel and are respectively corresponding to exhaust passages of all the fans, and a fixing device used for fixing the heat radiating device, wherein a back-flow preventing device is respectively arranged between each air duct and the panel, and used for preventing the return flow from entering the air ducts when the corresponding fans are under the out-of-service condition. The heat radiating device solves the problem that the backflow prevention is performed after the single fan in groups of fans fails.
Description
Technical field
The utility model relates to the heat abstractor that is used for electronic installation, particularly relates to a kind of novel anti-return heat abstractor.
Background technology
Along with the continuous development of electronic technology, the integrated degree of semiconductor device circuit is more and more higher, semiconductor subassembly more powerful and physical size is more and more littler, and the density of heat flow rate during the semiconductor subassembly operation also increases thereupon so.High heat flux has brought the thermal control requirement higher to electronic component, and installing fan additional and be the most common also is most economical thermal control means.
But compare with other radiating elements, fan belongs to the relatively poor device of reliability in electronic equipment, often there is the situation that single fan breaks down in one group of fan, and the position that single fan breaks down is because the loss of air pressure will cause the phenomenon of airflow reflux, this moment, rapid deterioration will take place in the heat radiation situation of whole system, and then the inefficacy of the electronic component in the possibility initiating system.Concrete condition as shown in Figure 1, heat abstractor has comprised the fan group of being made up of 2 fans heat radiations, is provided with guide duct between fan group and panel, fan group and guide duct link to each other by the screw plate that carries out dough making, and have ventilation hole on the panel.During heat abstractor work, air-flow is discharged on the panel by guide duct by the fan group, discharges via the ventilation hole on the panel again.When a fan wherein breaks down when quitting work, no longer include air-flow in the ventilation hole on the pairing panel of this fan and discharge.But device interior still communicates with device external by the fan that breaks down.Since another fan also in operate as normal to the panel air draft, therefore the air pressure in space will be less than external pressure between device interior fan group, guide duct and panel.At this moment outer gas stream will enter space between fan group, guide duct and the panel by the ventilation hole on this fault fan corresponding panel, and then flows into the generation that device interior causes backflow phenomenon.In the air-flow that refluxes, also include a part and have certain heat air-flow, therefore reflux and to reduce radiating effect widely by what the fan of operate as normal was discharged.When system is in this state for a long time, heat radiation situation meeting rapid deterioration, temperature can significantly raise, and work will cause that components and parts lost efficacy owing to overheated for a long time.
The utility model content
For solving the problems referred to above that prior art exists, the utility model provides a kind of novel heat abstractor that is used for electronic equipment.This heat abstractor has solved the problem of the single fan fails rear defence backflow in the fan in groups.
The heat abstractor that is used for electronic equipment described in the utility model, comprise panel, contain at least 2 fans the fan group, between described fan group and panel, be provided with the guide duct corresponding respectively, be used for fixing the fixture of this heat abstractor with the exhaust channel of each fan, it is characterized in that, between described each guide duct and panel, be respectively arranged with back-flow preventer, enter described guide duct in order to when pairing fan is in non operating state, to stop backflow wind.
The back-flow preventer that is used for the heat abstractor of electronic equipment described in the utility model is preferably and is provided with the air deflector of one deck check valve sheet at least, described check valve sheet upper end has a rotating shaft, this rotating shaft is vertically set on the described air deflector sidewall, described back-flow preventer also is provided with stopping means, uses so that the position of check valve sheet corresponding air deflector sealing to terminating in.
Wherein said stopping means more preferably is arranged on the described air deflector base plate or the guide vane end stop on the sidewall, uses so that check valve sheet turns to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
Wherein most preferably be and be provided with the check valve sheet that multilayer is provided with in the described air deflector from top to bottom, when not air draft, check valve sheet lower end, upper strata leans against the upper end of lower floor's check valve sheet, and the orlop check valve sheet leans against on the described stopping means, with described air deflector sealing.
Wherein also can most preferably be described guide vane end stop is arranged on the described air deflector sidewall, the end of the corresponding described guide vane end stop of the rotating shaft of described check valve sheet has the breach of 1/4 circular arc, described guide vane end stop is in described breach, when the pairing fan of described check valve sheet was in non operating state, the end face of the close described check valve sheet of described breach leaned against check valve sheet is turned to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
Wherein said stopping means also can more preferably be arranged on the rotating shaft of described check valve sheet upper end, uses so that check valve sheet turns to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
Wherein further be preferably described rotating shaft and comprise interior axle that is fixedly installed on the described air deflector sidewall and the outer shaft that is connected with described check valve sheet, axle was gone up and is turned in described outer shaft was contained in, in described, be provided with a guide vane end stop on the axle, with so that described outer shaft when rotating on interior axle, check valve sheet turns to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
Wherein most preferably be and be provided with the check valve sheet that multilayer is provided with in the described air deflector from top to bottom, the outer shaft of orlop check valve sheet is provided with an openwork part, described guide vane end stop is in described openwork part, when pairing fan is in non operating state, check valve sheet lower end, upper strata is by described upper end in lower floor's check valve sheet, on the outer shaft of orlop check valve sheet openwork part and the end rotating shaft axially parallel lean against described on the axle guide vane end stop, check valve sheet is turned to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
Wherein also can most preferably be and be provided with the check valve sheet that multilayer is provided with in the described air deflector from top to bottom, the outer shaft of every layer of check valve sheet is provided with an openwork part, described guide vane end stop is in described openwork part, when pairing fan is in non operating state, on the described outer shaft openwork part and the end rotating shaft axially parallel lean against described on the axle guide vane end stop, check valve sheet is turned to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
The heat abstractor that is used for electronic equipment described in the utility model, when wherein some fans damages, owing to lost the thrust that air-flow produced that fan blows out, under the effect of gravity, the unidirectional valve sector-meeting vertical position that falls back.Under the effect of stopping means, check valve sheet will stop the generation of reflux airflow, keep all the other unspoiled fan operate as normal air drafts, improve the stability of system's operation.
Description of drawings
Fig. 1 is a heat abstractor schematic diagram of the prior art;
Fig. 2 is a heat abstractor schematic diagram provided by the utility model;
Fig. 3 is the air deflector schematic diagram of the described heat abstractor of first embodiment of the present utility model;
Fig. 4 is the schematic diagram of air deflector when air draft of the described heat abstractor of first embodiment of the present utility model;
Fig. 5 is the schematic diagram of air deflector when refluxing generation of the described heat abstractor of first embodiment of the present utility model;
Fig. 6 is the air deflector schematic diagram of the described heat abstractor of second embodiment of the present utility model;
Fig. 7 is the schematic diagram of air deflector when air draft of the described heat abstractor of second embodiment of the present utility model;
Fig. 8 is the schematic diagram of air deflector when refluxing generation of the described heat abstractor of second embodiment of the present utility model.
Fig. 9 A is the stopping means schematic diagram of the described heat abstractor of the 4th embodiment of the present utility model.
Fig. 9 B is the stopping means of the described heat abstractor of the 4th an embodiment of the present utility model schematic diagram along wind direction when fan is in running order.
Figure 10 A is the stopping means schematic diagram of the described heat abstractor of the 5th embodiment of the present utility model.
Figure 10 B is the stopping means of the described heat abstractor of the 5th an embodiment of the present utility model schematic diagram along wind direction when fan is in running order.
Embodiment
To describe specific embodiments of the invention in detail below.Should be noted that the embodiments described herein only is used to illustrate, be not limited to the present invention.
Extremely shown in Figure 5 as Fig. 2, heat abstractor in first embodiment of the present utility model, comprise 2 turbine fans 1, at guide duct, air deflector 2 and the panel 3 of the supporting setting of each fan 1 front end, be provided with check valve sheet 4 and following unidirectional valve block 5 in air deflector 2, these check valve sheet can be opened when air draft.Each check valve sheet upper end all has rotating shaft, and each rotating shaft is inserted in the circular hole on the sidewall of air deflector 2 and is free to rotate.When air draft, last check valve sheet 4 and following unidirectional valve block 5 open to horizontal level under the effect of air-flow.When not air draft, last check valve sheet 4 and following unidirectional valve block 5 are got back to the upright position under action of gravity, and upward check valve sheet 4 lower ends lean against the described upper end of unidirectional valve block 5 down, and the lower end of following unidirectional valve block 5 leans against on the guide vane end stop 6 that is arranged on the air deflector base plate.Like this because the stopping of upper and lower check valve sheet, thereby effectively prevent the generation of airflow reflux phenomenon, improved the stability of system's operation.
Extremely shown in Figure 8 as Fig. 6, heat abstractor in second embodiment of the present utility model, comprise 2 turbine fans 1, at guide duct, air deflector 2 and the panel 3 of the supporting setting of each fan 1 front end, in air deflector 2, be provided with 1 check valve sheet 7, check valve sheet 7 can be opened when air draft.Check valve sheet 7 upper ends have rotating shaft, and this rotating shaft is inserted in the circular hole on the sidewall of air deflector 2 and is free to rotate.When air draft, check valve sheet 7 opens to horizontal level under the effect of air-flow.When not air draft, check valve sheet 7 is got back to the upright position under action of gravity, and only leans against on the guide vane end stop 6 that is arranged on the air deflector base plate to the lower end of valve block 7.Like this because the stopping of check valve sheet 7, thereby effectively prevent the generation of airflow reflux phenomenon, improved the stability of system's operation.
Heat abstractor in the 3rd embodiment of the present utility model, its fan, guide duct and air deflector are identical with the heat abstractor described in first embodiment, but its guide vane end stop is arranged on the air deflector sidewall.When not air draft, following unidirectional valve block is got back to the upright position under action of gravity, and its lower end leans against on the guide vane end stop that is arranged on the air deflector sidewall.Like this because the stopping of upper and lower check valve sheet, thereby effectively prevent the generation of airflow reflux phenomenon, improved the stability of system's operation.
As Fig. 9 A, shown in the 9B, heat abstractor in the 4th embodiment of the present utility model, its fan, guide duct and air deflector are identical with the heat abstractor described in second embodiment, but its stopping means is not arranged on the guide vane end stop on air deflector base plate or the sidewall, and be arranged on the rotating shaft of described check valve sheet upper end, wherein this rotating shaft comprises interior axle 8 that is fixedly installed on the air deflector sidewall and the outer shaft 9 that is connected with check valve sheet 7, outer shaft 9 is sleeved on the interior axle 8 and turns, bottom at interior axle 8 is provided with a guide vane end stop 11, have the openwork part 10 of 1/4 circular arc on outer shaft 9, guide vane end stop 11 is arranged in the openwork part 10.The end face of openwork part 10 close check valve sheet 7 and check valve sheet 7 are in same plane.When pairing fan was in non operating state, openwork part 10 leaned against on the guide vane end stop 11 near the end face of check valve sheet 7, made check valve sheet 7 terminate in position perpendicular to the air draft wind direction, had prevented that check valve sheet 7 from rotating and cause backflow to fan directional.Like this because the stopping of check valve sheet 7, thereby effectively prevent the generation of airflow reflux phenomenon, improved the stability of system's operation.
In above-mentioned the 4th embodiment, openwork part 10 also can be certain angle a (a＞0 °) with plane, check valve sheet 7 place near the end face of check valve sheet 7, is 90 °+a away from the end face of check valve sheet 7 and the angle on plane, check valve sheet 7 place so.Guide vane end stop 11 setting that adapts.The stopping means of this structure also can make check valve sheet 7 open to horizontal level when air draft, when pairing fan is in non operating state, openwork part 10 leans against on the guide vane end stop 11 near the end face of check valve sheet 7, make check valve sheet 7 terminate in position, prevented that check valve sheet 7 from passing on to fan directional and cause backflow perpendicular to the air draft wind direction.
As Figure 10 A, shown in the 10B, heat abstractor in the 5th embodiment of the present utility model, its fan, guide duct and air deflector are identical with the heat abstractor described in the 4th embodiment, but its stopping means is to be arranged on guide vane end stop 14 on the air deflector sidewall at the lowest part that is used to assemble hole on the sidewall of check valve sheet rotating shaft 1212, the two ends of rotating shaft 12 corresponding guide vane end stops 14 have the breach 13 of 1/4 circular arc, one end face of breach 13 and check valve sheet are in same plane, when pairing fan was in non operating state, breach 13 leaned against with the end face of check valve sheet in same plane check valve sheet is turned to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.Like this because the stopping of check valve sheet, thereby effectively prevent the generation of airflow reflux phenomenon, improved the stability of system's operation.
In above-mentioned the 5th embodiment, breach 13 also can be certain angle a (a＞0 °) with plane, check valve sheet place near the end face of check valve sheet, is 90 °+a away from the end face of check valve sheet and the angle on plane, check valve sheet place so.Guide vane end stop 14 setting that also adapts.The stopping means of this structure also can make check valve sheet open to horizontal level when air draft, when pairing fan is in non operating state, breach 13 leans against on the guide vane end stop 14 near the end face of check valve sheet, make check valve sheet terminate in position, prevented that check valve sheet from passing on to fan directional and cause backflow perpendicular to the air draft wind direction.
Though described the utility model with reference to several exemplary embodiments, should be appreciated that used term is explanation and exemplary and nonrestrictive term.The spirit or the essence that do not break away from invention because the present invention can specifically implement in a variety of forms, so be to be understood that, the foregoing description is not limited to any aforesaid details, and should be in the spirit and scope that claim limited of enclosing explain widely, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (9)
1, a kind of heat abstractor that is used for electronic equipment, comprise panel, contain at least 2 fans the fan group, between described fan group and panel, be provided with the guide duct corresponding respectively, be used for fixing the fixture of this heat abstractor with the exhaust channel of each fan, it is characterized in that, between described each guide duct and panel, be respectively arranged with back-flow preventer, enter described guide duct in order to when pairing fan is in non operating state, to stop backflow wind.
2, heat abstractor as claimed in claim 1, it is characterized in that, described back-flow preventer is to be provided with the air deflector of one deck check valve sheet at least, described check valve sheet upper end has a rotating shaft, this rotating shaft is vertically set on the described air deflector sidewall, described back-flow preventer also is provided with stopping means, with so that check valve sheet can terminate in the position that the corresponding air deflector of institute seals.
3, heat abstractor as claimed in claim 2 is characterized in that, described stopping means is to be arranged on the described air deflector base plate or the guide vane end stop on the sidewall, uses so that check valve sheet turns to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
4, heat abstractor as claimed in claim 3, it is characterized in that, be provided with the check valve sheet that multilayer is provided with in the described air deflector from top to bottom, when pairing fan is in non operating state, check valve sheet lower end, upper strata leans against the upper end of lower floor's check valve sheet, the orlop check valve sheet leans against on the described stopping means, with described air deflector sealing.
5, as claim 3 or 4 described heat abstractors, it is characterized in that, described guide vane end stop is arranged on the described air deflector sidewall, the end of the corresponding described guide vane end stop of the rotating shaft of described check valve sheet has the breach of 1/4 circular arc, described guide vane end stop is in described breach, when the pairing fan of described check valve sheet was in non operating state, the end face of the close described check valve sheet of described breach leaned against check valve sheet is turned to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
6, heat abstractor as claimed in claim 2 is characterized in that, described stopping means is arranged on the rotating shaft of described check valve sheet upper end, uses so that check valve sheet turns to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
7, heat abstractor as claimed in claim 6, it is characterized in that, described rotating shaft comprises interior axle that is fixedly installed on the described air deflector sidewall and the outer shaft that is connected with described check valve sheet, axle was gone up and is turned in described outer shaft was contained in, in described, be provided with a guide vane end stop on the axle, with so that described outer shaft when rotating on interior axle, check valve sheet turns to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
8, heat abstractor as claimed in claim 7, it is characterized in that, be provided with the check valve sheet that multilayer is provided with in the described air deflector from top to bottom, the outer shaft of orlop check valve sheet is provided with an openwork part, described guide vane end stop is in described openwork part, when pairing fan is in non operating state, check valve sheet lower end, upper strata is by described upper end in lower floor's check valve sheet, on the outer shaft of orlop check valve sheet openwork part and the end rotating shaft axially parallel lean against described on the axle guide vane end stop, check valve sheet is turned to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
9, heat abstractor as claimed in claim 7, it is characterized in that, be provided with the check valve sheet that multilayer is provided with in the described air deflector from top to bottom, the outer shaft of every layer of check valve sheet is provided with an openwork part, described guide vane end stop is in described openwork part, when pairing fan is in non operating state, on the described outer shaft openwork part and the end rotating shaft axially parallel lean against described on the axle guide vane end stop, check valve sheet is turned to perpendicular to no longer rotating to fan directional behind the position of air draft wind direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200039529U CN201167447Y (en) | 2008-02-27 | 2008-02-27 | Radiating device for electronic appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200039529U CN201167447Y (en) | 2008-02-27 | 2008-02-27 | Radiating device for electronic appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201167447Y true CN201167447Y (en) | 2008-12-17 |
Family
ID=40192840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200039529U Expired - Lifetime CN201167447Y (en) | 2008-02-27 | 2008-02-27 | Radiating device for electronic appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201167447Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548347A (en) * | 2010-12-28 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Electronic equipment and heat radiation device thereof |
| CN102758801A (en) * | 2011-04-29 | 2012-10-31 | 宏碁股份有限公司 | Wind stop device |
| CN103458650A (en) * | 2012-05-31 | 2013-12-18 | 鸿富锦精密工业（深圳）有限公司 | Fan fixing device |
| CN105744803A (en) * | 2016-03-21 | 2016-07-06 | 联想(北京)有限公司 | Electronic equipment |
| CN113365481A (en) * | 2021-06-29 | 2021-09-07 | 西安易朴通讯技术有限公司 | Anti-backflow method and device applied to heat dissipation equipment and heat dissipation system |
-
2008
- 2008-02-27 CN CNU2008200039529U patent/CN201167447Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548347A (en) * | 2010-12-28 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Electronic equipment and heat radiation device thereof |
| CN102548347B (en) * | 2010-12-28 | 2016-02-03 | 青岛橡胶谷知识产权有限公司 | Electronic equipment |
| CN102758801A (en) * | 2011-04-29 | 2012-10-31 | 宏碁股份有限公司 | Wind stop device |
| CN102758801B (en) * | 2011-04-29 | 2014-10-01 | 宏碁股份有限公司 | Wind stop device |
| CN103458650A (en) * | 2012-05-31 | 2013-12-18 | 鸿富锦精密工业（深圳）有限公司 | Fan fixing device |
| CN103458650B (en) * | 2012-05-31 | 2016-12-07 | 马国旭 | Fan fixer |
| CN105744803A (en) * | 2016-03-21 | 2016-07-06 | 联想(北京)有限公司 | Electronic equipment |
| CN113365481A (en) * | 2021-06-29 | 2021-09-07 | 西安易朴通讯技术有限公司 | Anti-backflow method and device applied to heat dissipation equipment and heat dissipation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081217 |