CN102279639A - Radiating device and centrifugal fan thereof - Google Patents
Radiating device and centrifugal fan thereof Download PDFInfo
- Publication number
- CN102279639A CN102279639A CN2010101971762A CN201010197176A CN102279639A CN 102279639 A CN102279639 A CN 102279639A CN 2010101971762 A CN2010101971762 A CN 2010101971762A CN 201010197176 A CN201010197176 A CN 201010197176A CN 102279639 A CN102279639 A CN 102279639A
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- cover plate
- air outlet
- impeller
- air
- windshied part
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Abstract
The invention discloses a radiating device, which comprises a centrifugal fan and a fin group, wherein the centrifugal fan comprises a fan frame and an impeller arranged in the fan frame; the fan frame comprises a bottom plate, a cover plate and a side wall positioned between the bottom plate and the cover plate; the side wall is provided with an air outlet; the cover plate is provided with an air inlet corresponding to the impeller; the fin group is arranged at the air outlet; the cover plate is provided with an air blocking part at the air outlet; and the cross-sectional area of the air blocking part close to the air outlet of an impeller side increases towards the cross-sectional area of the air blocking part close to the air outlet on a fin group side, so that air current flowing from the air outlet to the fin group is prevented from flowing back to the impeller side. In the centrifugal fan of the radiating device, the air blocking part is formed at the air outlet, and the cross-sectional area of the air blocking part close to the air outlet of the impeller side increases towards the cross-sectional area of the air blocking part close to the air outlet on the fin group side, so that the flow rate of gas close to the fin group side or the formation of an air resistance or eddy current phenomenon is relieved, and the air current which flows out of the air outlet and is heated by the fin group can be effectively prevented from reflowing to the impeller side.
Description
Technical field
The present invention relates to a kind of heat abstractor, particularly a kind of heat abstractor with centrifugal fan.
Background technology
Along with improving constantly of central processing unit electronic component power such as (CPU), heat dissipation problem more and more is subject to people's attention, and is all the more so in notebook computer.
Usually industry is installed heating radiator on circuit board, in order to the heat-generating electronic elements that is arranged on the circuit board is dispelled the heat.Heating radiator generally include one with the heat pipe of electronic component heat conduction contact and the some heat radiator that are connected with heat pipe for thermal conductivity.Often a centrifugal fan is arranged at these some heat radiator one sides for strengthening radiating effect, this fan has an air inlet and an air outlet, fan sucks cold air by its air inlet on every side from it, and the cold air of suction blows to by its air outlet and cold sink becomes hot-air.Yet, in this process, because fan outlet is usually directly facing to heat radiator, because the relation of fluid velocity or streamline angle, go into interruption-forming windage or vortex phenomenon at heat radiator easily, cause the air-flow that flow to heat radiator to be back to the blast fan side again, so just reduce the radiating efficiency of heating radiator greatly.
Summary of the invention
In view of this, be necessary to provide a kind of heat abstractor with centrifugal fan, this centrifugal fan can prevent effectively that thermal current from refluxing.
A kind of heat abstractor, comprise a centrifugal fan and a fins group, described centrifugal fan comprises a fan frame and is installed on the interior impeller of fan frame, described fan frame comprises a base plate, one cover plate and the sidewall between this base plate and cover plate, this sidewall is provided with an air outlet, corresponding impeller is provided with an air inlet on this cover plate, this fins group is located at this air outlet place, this cover plate forms a windshied part in air outlet, and this windshied part enlarges to stop that the air-flow that flow to fins group through air outlet is back to impeller side again to the air outlet cross-sectional area near the fins group side near the air outlet cross-sectional area of impeller side.
A kind of centrifugal fan, comprise a fan frame and be installed on the interior impeller of fan frame, described fan frame comprises a base plate, a cover plate and the sidewall between this base plate and cover plate, this sidewall is provided with an air outlet, corresponding impeller is provided with an air inlet on this cover plate, this cover plate forms a windshied part in air outlet, and this windshied part enlarges to the cross-sectional area of air-out oral-lateral near the cross-sectional area of impeller side.
Compared with prior art, the centrifugal fan of heat abstractor forms a windshied part in air outlet among the present invention, this windshied part enlarges to the air outlet cross-sectional area near the fins group side near the air outlet cross-sectional area of impeller side, so relax near the fins group side gas flow rate and the formation of windage or vortex phenomenon, can effectively relieve flow out by air outlet, be back to impeller side by the fins group heated air stream.
With reference to the accompanying drawings, the invention will be further described in conjunction with concrete embodiment.
Description of drawings
Fig. 1 is the assembly drawing of heat abstractor in a preferred embodiment of the present invention.
Fig. 2 is the inversion figure of heat abstractor among Fig. 1.
Fig. 3 is the exploded view of heat abstractor among Fig. 1.
Fig. 4 is the inversion figure of heat abstractor among Fig. 3.
Fig. 5 is the assembly drawing of heat abstractor in another embodiment of the present invention.
The main element symbol description
Windshied part 30
Pars convoluta 34
Fins group 16
Fixed head 162
Heat-absorbing block 40
Holder 2602
Fixed orifice 2620
Through hole 282
Installing plate 12
Embodiment
See also Fig. 1 and Fig. 2, the heat abstractor of a preferred embodiment of the present invention can dispel the heat to two electronic components (figure does not show) that are installed on the motherboard (figure does not show) simultaneously.This heat abstractor comprises a heating radiator 10 and a centrifugal fan 20.
Please consult Fig. 3 and Fig. 4 simultaneously, this heating radiator 10 comprises that one is installed in installing plate 12, a heat pipe 14, two heat-absorbing blocks 40 and the fins group 16 on the motherboard.
Described heat pipe 14 is pressed into flat, and it has an evaporator section 142 and a condensation segment 144.The evaporator section 142 of this heat pipe 14 embeds in the installing plate 12, and the condensation segment 144 of heat pipe 14 combines with fins group 16.
Described installing plate 12 is made by Heat Conduction Materials such as iron, aluminium, and the upper surface of this installing plate 12 is offered a raceway groove 120, and the evaporator section 142 of described heat pipe 14 is placed in this raceway groove 120.The lower surface of this installing plate 12 is offered two square grooves 122, and this two heat-absorbing block 40 is placed in respectively in this two square groove 122, and this two heat-absorbing block 40 is made by Heat Conduction Materials such as copper.This two square groove 122 is connected with raceway groove 120, so that evaporator section 142 lower surfaces of heat pipe 14 contact with heat-absorbing block 40 heat conduction.This two heat-absorbing block 40 is sticked with two electronic components respectively, to absorb the heat that electronic component produces.
Described fins group 16 is formed by some spaces, parallel folded the establishing of radiating fin (not label).Two fixed heads 162 are incorporated into fins group 16 two ends, a fixed orifice (not label) is offered in the upper end of each fixed head 162, the condensation segment 144 of heat pipe 14 passes the fixed orifice of this two fixed head 162, the lower surface of heat pipe 14 contacts with the upper surface heat conduction of fins group 16 by heat-conducting medium, in order to heat transferred fins group 16, utilize fins group 16 and air to have bigger contact area heat is dissipated.Form some gas channels (not label) between each adjacent radiating fin.
Described fan 20 is provided with the air outlet 202 and first an axial air inlet 280 of a side direction, is the airflow reflux that prevents to be flowed out by air outlet 202, and these fan 20 contiguous air outlets 202 places form a windshied part 30.
Described fan 20 comprises a fan frame 22 and is positioned at an impeller 24 of fan frame 22.Fan frame 22 comprises a base 26 and covers at a cover plate 28 on this base 26.This first air inlet 280 is located on the cover plate 28, and the periphery of cover plate 28 is offered some through holes 282.This cover plate 28 forms described windshied part 30 in air outlet 202, and this windshied part 30 axially protrudes from cover plate 28 along impeller 24, and windshied part 30 is convexed to form near impeller 24 laterally closer fins group 16 side one by cover plate 28.Described windshied part 30 comprises a body parallel with cover plate and is connected in the pars convoluta that one between this body and the cover plate tilts.Described fins group 16 is located on the plane identical with described windshied part 30.This windshied part 30 enlarges to air outlet 202 cross-sectional areas near fins group 16 sides near air outlet 202 cross-sectional areas of impeller 24 sides, so relax, can stop effectively that the air-flow that flow to fins group 16 through air outlet 202 is back to impeller 24 sides again near the gas flow rate of fins group 16 sides and the formation of windage or vortex phenomenon.This base 26 comprises a base plate 260 and a sidewall 262 that extends vertically upward along base plate 260 outer rims.Be provided with in the middle of the base plate 260 that a holder 2602, three second air inlets 2600 compartment of terrains are opened in around the holder 2602 and relative up and down, described air outlet 202 and first air inlet 280 and the 2600 mutual vertical settings of second air inlet with first air inlet 280.This impeller 24 is fixed on this holder 2602.This air outlet 202 is located on the sidewall 262 of this base 26.Through hole 282 places of corresponding cover plate 28 form plurality of fixed hole 2620 on the upper surface of the sidewall 262 of base 26, screw (figure does not show) passes through hole 282 screw locks of cover plate 28 in the fixed orifice 2620 of the sidewall 262 of base 26, cover plate 28 is fixed on the sidewall 262 of base 26, thus cover plate 28 and the base 26 common chambers (not label) that form a ccontaining impeller 24.
During heat abstractor work, two heat-absorbing blocks 40 absorb the heat that two electronic components produce, and heat pipe 14 is with the heat transferred fins group 16 that absorbs.Fan 20 sucks outside air in cover plate 28 and the base 26 common chambers that form from first air inlet 280 and second air inlet 2600 simultaneously, air-flow is blown to fins group 16 along air outlet 202 under the effect of impeller 24, and blows out along the gas channel between fin.Because this windshied part 30 enlarges to air outlet 202 cross-sectional areas near fins group 16 sides near air outlet 202 cross-sectional areas of impeller 24 sides, so relax near the gas flow rate of fins group 16 sides and the formation of windage or vortex phenomenon, can stop effectively that the air-flow that flow to fins group 16 through air outlet 202 is back to impeller 24 sides again, thereby keep the higher radiating efficiency of heat abstractor.
Fig. 5 is the assembly drawing of heat abstractor in corresponding another embodiment of the present invention, different with previous embodiment is, the windshied part 30 of heat abstractor also comprises the strip parts 36 that are arranged on the cover plate 28, made by rubber, and these strip parts 36 are back to first air inlet 280 with barrier air from air outlet 202 between the air outlet 202 and first air inlet 280.
Claims (12)
1. heat abstractor, comprise a centrifugal fan and a fins group, described centrifugal fan comprises a fan frame and is installed on the interior impeller of fan frame, described fan frame comprises a base plate, one cover plate and the sidewall between this base plate and cover plate, this sidewall is provided with an air outlet, corresponding impeller is provided with an air inlet on this cover plate, this fins group is located at this air outlet place, it is characterized in that: this cover plate forms a windshied part in air outlet, and this windshied part enlarges to stop that the air-flow that flow to fins group through air outlet is back to impeller side again to the air outlet cross-sectional area near the fins group side near the air outlet cross-sectional area of impeller side.
2. heat abstractor as claimed in claim 1 is characterized in that: described windshied part protrudes from cover plate along the axial of impeller.
3. heat abstractor as claimed in claim 1 is characterized in that: described windshied part is convexed to form near the laterally closer fins group side of impeller one by cover plate.
4. heat abstractor as claimed in claim 3 is characterized in that: described windshied part comprises a body parallel with cover plate and is connected in the pars convoluta that one between this body and the cover plate tilts.
5. heat abstractor as claimed in claim 1 is characterized in that: also comprise a heat pipe and a heat-absorbing block, an end of described heat pipe combines with fins group, and the other end of heat pipe combines with heat-absorbing block.
6. heat abstractor as claimed in claim 1 is characterized in that: described fins group is formed by folded the establishing of the radiating fin of some spaces, forms some gas channels between each adjacent radiating fin.
7. heat abstractor as claimed in claim 1 is characterized in that: described fins group is located on the plane identical with described windshied part.
8. heat abstractor as claimed in claim 1 is characterized in that: described windshied part more comprises strip parts, and these strip parts are located on the cover plate.
9. heat abstractor as claimed in claim 8 is characterized in that: these strip parts are made by elastomeric material.
10. centrifugal fan, comprise a fan frame and be installed on the interior impeller of fan frame, described fan frame comprises a base plate, a cover plate and the sidewall between this base plate and cover plate, this sidewall is provided with an air outlet, corresponding impeller is provided with an air inlet on this cover plate, it is characterized in that: this cover plate forms a windshied part in air outlet, and this windshied part enlarges to the cross-sectional area of air-out oral-lateral near the cross-sectional area of impeller side.
11. centrifugal fan as claimed in claim 10 is characterized in that: described windshied part is convexed to form near the outside one of impeller side by cover plate.
12. centrifugal fan as claimed in claim 10 is characterized in that: described windshied part more comprises strip parts, and these strip parts are located on the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101971762A CN102279639A (en) | 2010-06-10 | 2010-06-10 | Radiating device and centrifugal fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101971762A CN102279639A (en) | 2010-06-10 | 2010-06-10 | Radiating device and centrifugal fan thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102279639A true CN102279639A (en) | 2011-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101971762A Pending CN102279639A (en) | 2010-06-10 | 2010-06-10 | Radiating device and centrifugal fan thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102279639A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835966A (en) * | 2012-11-23 | 2014-06-04 | 建准电机工业股份有限公司 | Centrifugal heat radiation fan |
| CN104564830A (en) * | 2013-10-21 | 2015-04-29 | 林内株式会社 | Centrifugal fan |
| CN104632711A (en) * | 2013-11-11 | 2015-05-20 | 林内株式会社 | Centrifugal blower |
| CN108464064A (en) * | 2016-01-29 | 2018-08-28 | 西部数据技术公司 | Reflux retainer with sound insulation |
| CN109819077A (en) * | 2019-03-22 | 2019-05-28 | 维沃移动通信有限公司 | Mobile terminal and image pickup method |
| CN110389642A (en) * | 2019-08-27 | 2019-10-29 | 广东虹勤通讯技术有限公司 | Radiator fan, radiator and electronic equipment for electronic equipment |
| CN111963480A (en) * | 2020-09-01 | 2020-11-20 | 奇鋐科技股份有限公司 | Frame structure of centrifugal fan |
| US11512711B2 (en) | 2020-09-18 | 2022-11-29 | Asia Vital Components Co., Ltd. | Centrifugal fan frame body structure |
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| US20070268668A1 (en) * | 2006-05-19 | 2007-11-22 | I-Ming Lin | Kind of superconductive heat cooler package of vacuum used in computer CPU (Central Processing Unit) |
| CN101187379A (en) * | 2006-11-17 | 2008-05-28 | 富准精密工业(深圳)有限公司 | Centrifugal fan, heat radiation device possessing the centrifugal fan and electronic device using the heat radiation device |
| CN101193532A (en) * | 2006-11-29 | 2008-06-04 | 富准精密工业(深圳)有限公司 | Heat radiator |
| CN201090997Y (en) * | 2007-09-25 | 2008-07-23 | 张哲华 | Heat radiating device of portable computer |
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2010
- 2010-06-10 CN CN2010101971762A patent/CN102279639A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070268668A1 (en) * | 2006-05-19 | 2007-11-22 | I-Ming Lin | Kind of superconductive heat cooler package of vacuum used in computer CPU (Central Processing Unit) |
| CN101187379A (en) * | 2006-11-17 | 2008-05-28 | 富准精密工业(深圳)有限公司 | Centrifugal fan, heat radiation device possessing the centrifugal fan and electronic device using the heat radiation device |
| CN101193532A (en) * | 2006-11-29 | 2008-06-04 | 富准精密工业(深圳)有限公司 | Heat radiator |
| CN201090997Y (en) * | 2007-09-25 | 2008-07-23 | 张哲华 | Heat radiating device of portable computer |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835966A (en) * | 2012-11-23 | 2014-06-04 | 建准电机工业股份有限公司 | Centrifugal heat radiation fan |
| CN103835966B (en) * | 2012-11-23 | 2016-08-24 | 建准电机工业股份有限公司 | Centrifugal heat radiation fan |
| CN104564830A (en) * | 2013-10-21 | 2015-04-29 | 林内株式会社 | Centrifugal fan |
| CN104564830B (en) * | 2013-10-21 | 2018-05-04 | 林内株式会社 | Centrifugal fan |
| CN104632711A (en) * | 2013-11-11 | 2015-05-20 | 林内株式会社 | Centrifugal blower |
| CN104632711B (en) * | 2013-11-11 | 2018-07-31 | 林内株式会社 | Centrifugal fan |
| CN108464064A (en) * | 2016-01-29 | 2018-08-28 | 西部数据技术公司 | Reflux retainer with sound insulation |
| CN108464064B (en) * | 2016-01-29 | 2020-03-13 | 西部数据技术公司 | Backflow preventer with sound insulation |
| CN109819077A (en) * | 2019-03-22 | 2019-05-28 | 维沃移动通信有限公司 | Mobile terminal and image pickup method |
| CN110389642A (en) * | 2019-08-27 | 2019-10-29 | 广东虹勤通讯技术有限公司 | Radiator fan, radiator and electronic equipment for electronic equipment |
| CN111963480A (en) * | 2020-09-01 | 2020-11-20 | 奇鋐科技股份有限公司 | Frame structure of centrifugal fan |
| CN111963480B (en) * | 2020-09-01 | 2023-08-18 | 奇鋐科技股份有限公司 | Frame structure of centrifugal fan |
| US11512711B2 (en) | 2020-09-18 | 2022-11-29 | Asia Vital Components Co., Ltd. | Centrifugal fan frame body structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |