CN102478025A - Radiating device and centrifugal fan thereof - Google Patents
Radiating device and centrifugal fan thereof Download PDFInfo
- Publication number
- CN102478025A CN102478025A CN2010105646888A CN201010564688A CN102478025A CN 102478025 A CN102478025 A CN 102478025A CN 2010105646888 A CN2010105646888 A CN 2010105646888A CN 201010564688 A CN201010564688 A CN 201010564688A CN 102478025 A CN102478025 A CN 102478025A
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- exhaust outlet
- diversion division
- centrifugal cutter
- far away
- wind end
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Abstract
The invention relates to a radiating device which comprises a centrifugal fan and a radiating fin set, wherein the radiating fin set is arranged at the air outlet of the centrifugal fan; the centrifugal fan comprises a fan frame and an impeller with a plurality of fan blades; the impeller is contained in the fan frame; one side of the fan frame is provided with the air outlet; the air outlet is provided with an air near end and an air far end opposite to the air near end; the impeller drives the air flow to flow out of the air near end and the air far end of the air outlet; the air far end of the air outlet of the fan frame is provided with a guiding part; the guiding part extends curvedly from the edge of the air outlet to the inside of the fan frame and the side on which the air near end is positioned; and the radiating fin set is composed of a plurality of radiating fins, and the outer end of the guiding part is parallel with the radiating fins.
Description
Technical field
The present invention relates to a kind of sink, particularly relate to a kind of centrifugal cutter of sink.
Background technique
In computer, the normal heat radiation module of being made up of heat pipe, radiating fin group and centrifugal cutter that adopts dispels the heat to heat-generating electronic elements at present.With heat transfer to radiating fin group, this radiating fin is mounted on the exhaust outlet place of this centrifugal cutter to heat-generating electronic elements through heat pipe.The air-flow that this centrifugal cutter produces blow to the radiating fin group and with radiating fin group generation heat exchange, and then heat distributed.Therefore, centrifugal cutter plays a part very important in the heat radiation module.
The traditional centrifugal fan comprises that one fans frame and is contained in the impeller in this fan frame, and this fan frame is provided with an exhaust outlet, and this impeller-driven air-flow blows out from exhaust outlet, and this air-flow and radiating fin group are carried out heat exchange, thereby the heat of heat-generating electronic elements is distributed.Yet; Because when air-flow leaves the exhaust outlet of this centrifugal cutter; Air-flow roughly edge is advanced with the tangent direction of the outer rim of impeller; Make when the part air-flow gets into the radiating fin group radiating fin group with this place form an angle, the radiating fin at this part air-flow and this place bumps, and causes the noise increase of this heat radiation module.
Summary of the invention
In view of this, be necessary to provide a kind of the have sink of less noise and the centrifugal cutter of use thereof.
A kind of centrifugal cutter; Comprise that a fan frame and is placed in the said fan frame and impeller that have a plurality of flabellums; One side of said fan frame is provided with an exhaust outlet; Said exhaust outlet has a nearly wind end and a far away wind end relative with this nearly wind end, and said impeller-driven air-flow flows out from the nearly wind end and the wind end far away of this exhaust outlet, and said fan frame is provided with a diversion division in the wind end far away place of its exhaust outlet; Said diversion division is bending extension from the edge of this exhaust outlet towards the inside and the said nearly wind end place side of said fan frame, and the direction of the air-flow edge that this diversion division will flow to this wind end far away and the air-flow that this nearly wind end flows out derives abreast.
A kind of sink; Comprise a centrifugal cutter and be located at the radiating fin group at the exhaust outlet place of this centrifugal cutter; This centrifugal cutter comprises that a fan frame and is placed in the said fan frame and impeller that have a plurality of flabellums; One side of said fan frame is provided with an exhaust outlet, and said exhaust outlet has a nearly wind end and a far away wind end relative with this nearly wind end, and said impeller-driven air-flow flows out from the nearly wind end and the wind end far away of this exhaust outlet; Said fan frame is provided with a diversion division in the wind end far away place of its exhaust outlet; Said diversion division is bending extension from the edge of this exhaust outlet towards the inside and the said nearly wind end place side of said fan frame, and this radiating fin group is made up of some radiating fins, and the outer end of said diversion division is parallel with said radiating fin.
The diversion division of the centrifugal cutter in this sink is with air-flow almost parallel ground this radiating fin group of guiding; The noise and the energy loss that can reduce the collision of air-flow and radiating fin group and produce; Can make air-flow velocity be unlikely to descend significantly; Improve the heat exchange efficiency of radiating fin group and air-flow, thereby promote the heat dispersion of sink.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the sink of the present invention's one preferred embodiment.
Fig. 2 is the three-dimensional assembly diagram of sink shown in Figure 1.
Fig. 3 is the horizontal cross and the flow field schematic representation of sink shown in Figure 2.
The primary component symbol description
Base 11
First arc shaped surface 114
Second arc shaped surface 115
Containing space 15
Intake grill 16
Exhaust outlet 17
Nearly wind end 171
Wind end 172 far away
Diversion division 18
Inner 181
Radiating fin group 20
Radiating fin 21
Air-flow path 22
The second end 24
Embodiment
Combine embodiment that the present invention is described further with reference to the accompanying drawings.
Please with reference to Fig. 1 and Fig. 2, the sink 100 of one embodiment of the invention comprises a centrifugal cutter 10 and a radiating fin group 20.A this radiating fin group 20 and a heat-generating electronic elements (figure does not show) hot connecting is to absorb the heat that heat-generating electronic elements produces, and this centrifugal cutter 10 provides the air-flow that blows to radiating fin group 20 to be dispersed in the ambient air with the heat that this radiating fin group 20 is absorbed.
This centrifugal cutter 10 comprises that a base 11, is located at the impeller 14 that top board 12 and on this base 11 has some flabellums 13.This base 11 surrounds with this top board 12 and forms a containing space 15, and this impeller 14 is arranged in this containing space 15.This impeller 14 turns round along counter clockwise direction when centrifugal cutter 10 work.
This base 11 comprises a base plate 111 and by the upwardly extending sidewall 112 of the periphery of base plate 111.This top board 12 is connected in the top of this sidewall 112, and this top board 12 is parallel to each other with this base plate 111 and over against setting.The centre of this base plate 111 and top board 12 is respectively equipped with an intake grill 16 to position that should impeller 14.This sidewall 112 is volute, and the one of which side is provided with an exhaust outlet 17 vertical with this intake grill 16.In the present embodiment, this exhaust outlet 17 has a nearly wind end 171 and a far away wind end 172 relative with this nearly wind end 171.When this centrifugal cutter work, flow to this exhaust outlet 17 behind the internal surface of flabellum 13 these sidewalls 112 of driving airflow passes of this impeller 14, wherein a part of air-flow flows out from this nearly wind end 171, and another part air-flow flows to this wind end 172 far away from this nearly wind end 171.This sidewall 112 linearly extends in these nearly wind end 171 sides, and this sidewall 112 is bending extension in these wind end 172 sides far away.
Please consult Fig. 3 simultaneously, the internal surface of this sidewall 112 protrudes out in wind end 172 1 side direction far away near said exhaust outlet 17 and forms a tongue mouth 113, and the outer surface of this sidewall 112 is in position that should tongue mouth 113 is correspondingly caved inward.The cross section of this tongue mouth 113 is roughly V-shaped; And the internal surface of this tongue mouth 113 comprise deviate from this wind end 172 far away and towards one first arc shaped surface 114 of impeller 14 and near and towards one second arc shaped surface 115 of this wind end 172 far away, this first arc shaped surface 114 and second arc shaped surface 115 are in the middle smooth connection of tongue mouth 113.This first arc shaped surface 114 intersects at a joint 116 with this second arc shaped surface 115.Increase gradually on the direction of this first arc shaped surface 114 14 runnings apart from the free-ended distance of the flabellum 13 of impeller 14 along impeller, thus this joint 116 near the free end of flabellum 13, thereby can increase the pressure of the air-flow here of flowing through, and then make its flow velocity raising.This second arc shaped surface 115 extends to the edge of exhaust outlet 17 from this joint 116.Distance between the sidewall 112 of this second arc shaped surface 115 and these nearly wind end 171 place sides is increased towards these exhaust outlet 17 edges by this joint 116 gradually.The curvature of this second arc shaped surface 115 reduces towards the edge of exhaust outlet 17 from this joint 116 gradually, and resistance that the air-flow that this second arc shaped surface 115 can reduce this place that flows through is suffered and steering flow are roughly to blow out with the sidewall 112 parallel directions of these nearly wind end 171 place sides.
This base plate 111 upwards is equipped with a diversion division 18 in these exhaust outlet 17 places, this diversion division 18 be positioned at this exhaust outlet 17 wind end far away 172 place a side and with the sidewall 112 of these wind end 172 place sides far away separately.This diversion division 18 is perpendicular to the base plate 111 of this centrifugal cutter 10, and the height of the height of this diversion division 18 and this sidewall 112 is suitable.This diversion division 18 has relative inner 181 and one outer end 182; This inner 181 is away from this exhaust outlet 17 and be positioned at the containing space 15 of this centrifugal cutter 10, and this outer end 182 is inner 181 near this exhaust outlet 17 and extend out to concordant with the edge of this base plate 111.In present embodiment, the roughly curved sheet of this diversion division 18.This diversion division 18 belongs to lateral bending Qu Yanshen from the edge of this exhaust outlet 17 towards the inside and the nearly wind end 171 of centrifugal cutter 10, thereby the distance between the sidewall 112 of this diversion division 18 and these nearly wind end 171 sides is reduced towards the inside of centrifugal cutter 10 by these exhaust outlet 17 edges gradually.The outer end 182 of this diversion division 18 is roughly parallel with the sidewall 112 of nearly wind end 171 place sides.
This radiating fin group 20 is positioned at exhaust outlet 17 places of this centrifugal cutter 10, and this radiating fin group 20 is piled up by some parallel radiating fins 21 and formed, and between per two adjacent radiating fins 21, is formed with air-flow path 22.This radiating fin group 20 has a first end 23 and a second end 24, and this first end 23 and the second end 24 are respectively to the nearly wind end 171 and wind end 172 far away of exhaust outlet 17 that should centrifugal cutter 10.The sidewall 112 of this centrifugal cutter 10 is in these nearly wind end 171 sides and this radiating fin 21 almost parallels.The bearing of trend of the outer end 182 of this diversion division 18 and this radiating fin 21 almost parallels.The bearing of trend of the end of second arc shaped surface 115 of this tongue mouth 113 and this radiating fin 21 almost parallels.This radiating fin group 20 is through a heat pipe (figure does not show) and heat-generating electronic elements hot connecting, to absorb the heat that this heat-generating electronic elements produces.
During these centrifugal cutter 10 work; This impeller 14 is along rotation counterclockwise; Drive air-flow and enter into centrifugal cutter 10 inside from this intake grill 16; Internal surface along the sidewall 112 of this centrifugal cutter 10 flows out from this exhaust outlet 17 this air-flow through tongue mouth 113 pressurization back, and wherein a part of air-flow blows out with oneself this nearly wind end 171 of direction with radiating fin 21 almost parallels at first end 23 places of radiating fin group 20, and flows in the air-flow path 22 of this radiating fin group 20; A part of in addition air-flow edge and radiating fin 21 directions in a certain angle flow to the wind end 172 far away of this exhaust outlet 17.Flow in the air-flow of this wind end 172 far away; Wherein a part runs into this diversion division 18 and under the guiding of this diversion division 18; The inner 181 that carries over this diversion division 18 flows to outer end 182, flows in the air-flow path 22 of this radiating fin group 20 with the direction with radiating fin 21 almost parallels of the second end 24 of radiating fin group 20 then; The wherein another part air-flow that flows to this wind end 172 far away is crossed this diversion division 18; Under the guiding of the sidewall 112 of these wind end 172 sides far away, also flow in the air-flow path 22 of this radiating fin group 20 with direction with radiating fin 21 almost parallels at these the second end 24 places.Flow to like this radiating fin group 20 first end 23 and the second end 24 air-flow all with radiating fin 21 almost parallels at this place; The zone that makes air flow direction and radiating fin 21 form angle reduces; The noise and the energy loss that can reduce air-flow and radiating fin 21 collisions and produce simultaneously, can make air-flow velocity be unlikely to descend significantly; Improve the heat exchange efficiency of radiating fin group 20 and air-flow, thereby promote the heat dispersion of sink 100.
Be appreciated that ground; The shape of this diversion division 18 is not limited to the shape in the present embodiment; It can also help the shape of steering flow for parabola shaped, streamline etc.; And can the radiating fin 21 at this place of guiding of air-flow almost parallel be got final product, in addition, the outer end 182 of this diversion division 18 also can stretch out the exhaust outlet 17 of this centrifugal cutter 10.In addition, the quantity of this diversion division 18 does not also limit, and the diversion division of a plurality of spaces also can be set, with radiating fin that air-flow more evenly and is abreast led according to actual radiating requirements in the exhaust outlet place of this centrifugal cutter 10.
Claims (10)
1. centrifugal cutter; Comprise that a fan frame and is placed in the said fan frame and impeller that have a plurality of flabellums; One side of said fan frame is provided with an exhaust outlet; Said exhaust outlet has a nearly wind end and a far away wind end relative with this nearly wind end, and said impeller-driven air-flow flows out from the nearly wind end and the wind end far away of this exhaust outlet, and it is characterized in that: said fan frame is provided with a diversion division in the wind end far away place of its exhaust outlet; Said diversion division is bending extension from the edge of this exhaust outlet towards the inside and the said nearly wind end place side of said fan frame, and the direction of the air-flow edge that this diversion division will flow to this wind end far away and the air-flow that this nearly wind end flows out derives abreast.
2. centrifugal cutter as claimed in claim 1 is characterized in that: said fan frame comprises a base plate, a top board relative with said base plate and is connected a sidewall of said base plate and top board, and said diversion division is located on the said base plate and perpendicular to said base plate.
3. centrifugal cutter as claimed in claim 2 is characterized in that: the height of said diversion division is suitable with the height of said sidewall.
4. centrifugal cutter as claimed in claim 2 is characterized in that: said sidewall linearly extends in said nearly wind is distolateral, and said sidewall is in the distolateral bending extension that is of this wind far away.
5. centrifugal cutter as claimed in claim 4 is characterized in that: said inside surface of side wall is provided with a tongue mouth in the wind end far away place near said exhaust outlet, and the cross section of said tongue mouth is V-shaped.
6. centrifugal cutter as claimed in claim 5; It is characterized in that: the internal surface of said tongue mouth comprise deviate from said wind end far away and towards one first arc shaped surface of said impeller and near and towards one second arc shaped surface of said wind end far away; Said first arc shaped surface and second arc shaped surface are in the middle smooth connection of said tongue mouth; Said first arc shaped surface apart from the free-ended distance of the flabellum of impeller along increasing gradually on the direction of impeller operation; Said second arc shaped surface extends to the edge of exhaust outlet; Distance between the sidewall of said second arc shaped surface and said nearly wind end place side increases to the outside from said fan frame inside gradually, and the parallel sidewalls of the end of said second arc shaped surface and said nearly wind end place side.
7. like each described centrifugal cutter of claim 2 to 6; It is characterized in that: said diversion division is near said wind far away distolateral sidewall and said sidewall spacers setting; Said diversion division comprises an inner and outer end; More near said exhaust outlet, the outer end of said diversion division and this nearly wind end belong to the parallel sidewalls of side than the inner in said outer end.
8. centrifugal cutter as claimed in claim 7 is characterized in that: the outer end of said diversion division extends out to concordant with the edge of said base plate.
9. centrifugal cutter as claimed in claim 7 is characterized in that: the curved sheet of said diversion division, the distance between the distolateral sidewall of said diversion division and said nearly wind reduces towards the inside of centrifugal cutter from the edge of this said exhaust outlet gradually.
10. sink; Comprise like each described centrifugal cutter of claim 1 to 9 and be located at the radiating fin group at the exhaust outlet place of this centrifugal cutter; This radiating fin group is made up of some radiating fins, and the outer end of said diversion division is parallel with said radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010564688.8A CN102478025B (en) | 2010-11-29 | 2010-11-29 | Sink and centrifugal cutter thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010564688.8A CN102478025B (en) | 2010-11-29 | 2010-11-29 | Sink and centrifugal cutter thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102478025A true CN102478025A (en) | 2012-05-30 |
| CN102478025B CN102478025B (en) | 2016-04-27 |
Family
ID=46090761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010564688.8A Expired - Fee Related CN102478025B (en) | 2010-11-29 | 2010-11-29 | Sink and centrifugal cutter thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478025B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160369811A1 (en) * | 2015-06-16 | 2016-12-22 | Delta Electronics, Inc. | Centrifugal fan with dual outlets in the same direction and fan frame thereof |
| CN107023499A (en) * | 2016-01-29 | 2017-08-08 | 台达电子工业股份有限公司 | Fan and heat abstractor |
| CN110118198A (en) * | 2018-02-05 | 2019-08-13 | 华硕电脑股份有限公司 | Centrifugal fan |
| CN110345532A (en) * | 2019-06-27 | 2019-10-18 | 青岛海尔智能技术研发有限公司 | The smoke discharging structure of integrated kitchen range |
| CN111245139A (en) * | 2020-03-13 | 2020-06-05 | 南京航空航天大学 | Outer rotor motor shell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04350400A (en) * | 1991-05-27 | 1992-12-04 | Hitachi Ltd | Centrifugal fan |
| CN1796799A (en) * | 2004-12-25 | 2006-07-05 | 富准精密工业(深圳)有限公司 | Blast deflector of fan |
| CN101307778A (en) * | 2007-05-18 | 2008-11-19 | 乐金电子(天津)电器有限公司 | Centrifugal fan assembled guide vane vortex tongue structure |
| CN101754655A (en) * | 2008-12-10 | 2010-06-23 | 富瑞精密组件（昆山）有限公司 | Radiating die set |
| CN101832280A (en) * | 2009-03-13 | 2010-09-15 | 富准精密工业(深圳)有限公司 | Heat-dissipating device, centrifugal fan thereof and electronic device using same |
-
2010
- 2010-11-29 CN CN201010564688.8A patent/CN102478025B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04350400A (en) * | 1991-05-27 | 1992-12-04 | Hitachi Ltd | Centrifugal fan |
| CN1796799A (en) * | 2004-12-25 | 2006-07-05 | 富准精密工业(深圳)有限公司 | Blast deflector of fan |
| CN101307778A (en) * | 2007-05-18 | 2008-11-19 | 乐金电子(天津)电器有限公司 | Centrifugal fan assembled guide vane vortex tongue structure |
| CN101754655A (en) * | 2008-12-10 | 2010-06-23 | 富瑞精密组件（昆山）有限公司 | Radiating die set |
| CN101832280A (en) * | 2009-03-13 | 2010-09-15 | 富准精密工业(深圳)有限公司 | Heat-dissipating device, centrifugal fan thereof and electronic device using same |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160369811A1 (en) * | 2015-06-16 | 2016-12-22 | Delta Electronics, Inc. | Centrifugal fan with dual outlets in the same direction and fan frame thereof |
| US10539150B2 (en) * | 2015-06-16 | 2020-01-21 | Delta Electronics, Inc. | Centrifugal fan with dual outlets in the same direction and fan frame thereof |
| CN107023499A (en) * | 2016-01-29 | 2017-08-08 | 台达电子工业股份有限公司 | Fan and heat abstractor |
| CN110118198A (en) * | 2018-02-05 | 2019-08-13 | 华硕电脑股份有限公司 | Centrifugal fan |
| CN110118198B (en) * | 2018-02-05 | 2021-03-02 | 华硕电脑股份有限公司 | Centrifugal fan |
| CN110345532A (en) * | 2019-06-27 | 2019-10-18 | 青岛海尔智能技术研发有限公司 | The smoke discharging structure of integrated kitchen range |
| CN111245139A (en) * | 2020-03-13 | 2020-06-05 | 南京航空航天大学 | Outer rotor motor shell |
| CN111245139B (en) * | 2020-03-13 | 2021-05-11 | 南京航空航天大学 | Outer rotor motor shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102478025B (en) | 2016-04-27 |
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Granted publication date: 20160427 Termination date: 20171129 |