CN100591922C - Radiating mould assembly with double fan - Google Patents
Radiating mould assembly with double fan Download PDFInfo
- Publication number
- CN100591922C CN100591922C CN200510035336A CN200510035336A CN100591922C CN 100591922 C CN100591922 C CN 100591922C CN 200510035336 A CN200510035336 A CN 200510035336A CN 200510035336 A CN200510035336 A CN 200510035336A CN 100591922 C CN100591922 C CN 100591922C
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- Prior art keywords
- heat radiation
- exhaust outlet
- radiation module
- double fan
- wind inlet
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Abstract
The invention relates to a dual-fan heat radiation group, which comprises a frame, the first and second eccentric fans, wherein the frame comprises the first and second wind inlets and wind outlets; the first and second eccentric fans are parallel contained inside the frame; the wind outlet and the area formed by the first and second eccentric fans form the airflow high pressure area; therefore, the airflow into said high-pressure area is blocked to flow to the wind outlet.
Description
[technical field]
The present invention relates to a kind of heat radiation module, particularly a kind of heat radiation module with double fan.
[background technique]
Development along with electronics, network communication product, arithmetic speeds such as electrical assembly in the product such as chip are more and more fast, the heat that produces is also more and more many, and too high temperature can cause electrical failure, therefore must loose and remove heat to reduce rate of fault, all multimodes that existing solution is adopted mainly comprise: use radiating fin with the passive heat radiation of heat conducting mode, use radiation fan such as centrifugal cutter and axial flow fan etc. with the mode active heat removal of convection current, use that heat pipe conducts heat in the mode of phase transformation and the combination of these modes or the like numerous.
With the radiation fan is example, the existing centrifugal cutter structure that adopts single fan form as shown in Figure 1, fan 4 comprises shell 40, snail tongue 41, blade 42, wind inlet 43, impeller 44, the volute runner of gradually opening 45 and exhaust outlet 46.Impeller 44 drives blade 42 and counterclockwise rotates, gas enters in the fan 4 by wind inlet 43, the gas flow that rotating blades 42 promotes therebetween, after gas boosts via snail tongue 41, in the volute runner of gradually opening 45, kinetic energy is converted into the pressure energy, make gas have enough static pressure to overcome external drag, and force gas to flow out from exhaust outlet 46.When blade 42 drives gases when volute runner 45 flow to snail tongue 41, because snail tongue 41 places are the zone of high pressure, and exhaust outlet 46 be a low pressure area, so part can flow to exhaust outlet 46 after volute runner 45 effluent airs clash into snail tongue 41.It is not enough that but the noise that this kind fan 4 is produced when having the less and air impingement snail tongue 41 of single fan air output is bigger etc.
Remove the centrifugal cutter of above-mentioned single fan form, the centrifugal cutter that adopts the double fan form is still arranged.As shown in Figure 2, it is the centrifugal cutter structural representation of existing double fan form.Fan 5 comprises housing 50 and first, second centrifugal fan 51,52.Housing 50 inside are hollow shape, be divided into first, second room 501,502 side by side, offer first, second wind inlet 503,504 respectively on first, second room 501,502 walls, housing 50 bottoms offer the exhaust outlet 505 that communicates with first, second room 501,502 respectively, isolate with dividing plate 507 between first, second room 501,502.First, second centrifugal fan 51,52 is set respectively in first, second room 501,502.First, second centrifugal fan 51,52 has blade 510,520 and drive vane 510,520 motor rotating 511,521 respectively.The blade 510,520 of first, second centrifugal fan 51,52 oppositely is provided with, motor 511 drives first centrifugal fan 51 and turns clockwise, motor 521 drives second centrifugal fan 52 and is rotated counterclockwise, the sense of rotation that is first, second centrifugal fan 51,52 is being opposite near exhaust outlet 505 places, and is in opposite directions with exhaust outlet 505 relative sides in first, second room 501,502.Because dividing plate 507 extends to exhaust outlet 505 and concordant with base flange 500, thereby the air-flow in first, second room 501,502 is isolated fully, blade 510 dextrorotations are simultaneously transferred blade 520 and are rotated counterclockwise, about the air-flow that first, second room 501,502 blows out is divided into two strands and do not converge substantially, so the centrifugal cutter reality of this kind double fan form only is the simple combination of the centrifugal cutter of two independently single fan forms.Although the centrifugal cutter of this kind double fan form increases air quantity, overcome the deficiency of the centrifugal cutter of above-mentioned single fan form to a certain extent, yet the part air-flow of exhaust outlet can impact snail tongue 508,509 and have the bigger problem of noise equally because it is flowed through.
[summary of the invention]
According to above-mentioned situation, be necessary the double fan heat radiation module that provides a kind of noise less.
A kind of double fan heat radiation module comprises shell, first, second centrifugal cutter.Shell has first, second wind inlet and exhaust outlet, first, second centrifugal cutter be contained in side by side in the shell and with exhaust outlet to right, form the air-flow zone of high pressure in the zone that exhaust outlet and first, second centrifugal cutter surround, the air-flow that flow to this zone of high pressure is flowed to exhaust outlet by backstop.
Compared with prior art, form the air-flow zone of high pressure in the zone that the exhaust outlet of described double fan heat radiation module and first, second centrifugal cutter surround, the air-flow that flow to this zone of high pressure is flowed to exhaust outlet by backstop.The noise that the noise that the air-flow zone of high pressure that airflow strikes is formed by gas is produced produces far below bump solid snail tongue, so the noise that produces because of the fan rotation in the double fan of the present embodiment heat radiation module can obtain and effectively reduces.
[description of drawings]
Fig. 1 is the centrifugal cutter structural representation of existing single fan form.
Fig. 2 is the centrifugal cutter structural representation of existing double fan form.
Fig. 3 is a double fan heat radiation modular structure schematic representation of the present invention.
Fig. 4 is double fan heat radiation module internal structure and the gas flow schematic representation of Fig. 3.
[embodiment]
See also Fig. 3, Fig. 4, it is double fan heat radiation module 100 structural representations of the present invention's one better embodiment.This double fan heat radiation module 100 comprises shell 1, first fan 2, second fan 3.First, second fan 2,3 is contained in the shell 1.
Shell 1 is a case shape, has cover plate 10, base plate 12 and sidewall 13.Cover plate 10 offers last wind inlet 10a, the 10b of symmetric arrays, and base plate 12 offers following wind inlet 12a, the 12b of symmetric arrays, last wind inlet 10a, 10b respectively with following wind inlet 12a, 12b almost coaxial.Extension forms sidewall 13 from base plate 12 edges, and surround space and the exhaust outlet 14 that first, second fan 2,3 is accommodated in formation with cover plate 10, base plate 12, the volute that sidewall 13 and exhaust outlet 14 relative positions form two symmetries arches upward 130, arch upward 132 positions, top of 130 terminal intersection of this two volute are not prolonged and are gone up wind inlet 10a, 10b (or wind inlet 12a, 12b) the down line of centres, and promptly it is divided into wind inlet 10a, 10b (or time wind inlet 12a, 12b) line of centres both sides with exhaust outlet 14.
First, second fan 2,3 is common centrifugal cutter, and it has first, second impeller 20,30 respectively and is arranged in first, second group flabellum 22,32 of the odd number flabellum of first, second impeller 20,30 peripheries.Be installed on first, second motor (figure does not show) that drives first, second impeller 20,30 and first, second group flabellum 22,32 rotations in first, second impeller 20,30.In the present embodiment, first motor driving, first impeller 20 and first group of flabellum 22 are rotated counterclockwise, second motor driving, second impeller 30 and second group of flabellum 32 turn clockwise, the sense of rotation that is first, second group flabellum 22,32 deviates from mutually at 130 places that arch upward near volute, then is being in opposite directions near exhaust outlet 14 places.
First, second fan 2,3 fans are assembled on the base plate 12 in a conventional manner, and cover plate 10 is bonding on the sidewall 13.First, second fan 2,3 is packed into behind the housing 1, itself and last wind inlet 10a, 10b and wind inlet 12a, 12b almost coaxial down, wind inlet 12a, 12b were greater than the diameter of first, second impeller 20,30 under last wind inlet 10a, 10b reached, and so the gas of gas outside can enter respectively in first, second impeller clearance of organizing flabellum 22,32 through last wind inlet 10a, 10b and following wind inlet 12a, 12b.Form the volute runner 16 of two symmetries between the edge of first, second group flabellum 22,32 and the sidewall 13.
When activating double fan heat radiation module 100, first, second fan 2,3 counterrotatings simultaneously, first impeller 20 drives first group of flabellum 22 and is rotated counterclockwise, and second impeller 30 drives second group of flabellum 32 and turns clockwise.With first fan 2 is example, when first group of flabellum 22 is rotated counterclockwise, promotes the preceding gas of its every flabellum, thereby forms the moment low pressure area at this flabellum rear, and extraneous gas replenishes into through upper and lower wind inlet 10a, 12a immediately, and is promoted by back one flabellum.Because of the dynamic action of flabellum to gas, gas pressure and speed are improved, and under centrifugal action, radially get rid of sidewall 13 to housing 1, in volute runner 16, slow down afterwards, convert kinetic energy to the pressure energy, part gas is discharged from exhaust outlet 14, and another part gas continues to flow to first, second fan 2,3 adjacents.The method of operation of second fan 3 is similar to first fan 2, so only itself and first fan, 2 different parts are narrated, other roughly the same part repeat no more.Portion gas is after volute runner 16 is discharged one of in second fan 3, and another part gas also flows to first, second fan 2,3 adjacents.First, second fan 2,3 surrounds the spiral inlet area 18 that forms high compression density gas at its adjacent and exhaust outlet 14 when exhaust outlet 14 rotates in opposite directions.When two-part gas that flows to first, second fan 2,3 adjacents arrived spiral inlet area 18, because spiral inlet area 18 is the zone of high pressure, and exhaust outlet 14 was a low pressure area, so air impingement snail tongue 18 and can be flowed to exhaust outlet 14 naturally after the backstop.Because the noise that the noise that the spiral inlet area 18 that air impingement is formed by gas is produced produces far below bump solid snail tongue, thereby the noise that produces because of the fan rotation in the double fan of the present embodiment heat radiation module 100 obtains effectively to reduce.
The centrifugal cutter that above-mentioned mode of execution uses is an air inlet through hollow shaft, and it also can use radially (or claiming side direction) air intake, and this moment, wind inlet 14 can be opened on the sidewall 13; Sidewall 13 arches upward towards partly forming of exhaust outlet 14, also can only form towards exhaust outlet 14 1 sides and arch upward in sidewall 13, and need not sidewall outwardly a side also must be the shape that arches upward, it can be straight flange or other shape; Shell both can divide and had been set as a plurality of parts assembled formation again, also can make by integral forming process.
To those skilled in the art, can technological scheme according to the present invention make other and be equal to and replace or be applied near field, and all these replacements or use and all should belong to protection scope of the present invention.
Claims (10)
1. double fan heat radiation module, comprise a shell, one first centrifugal cutter, one second centrifugal cutter, this shell has one first wind inlet, one second wind inlet and at least one exhaust outlet, it is interior and relative with exhaust outlet that this first, second centrifugal cutter is contained in shell side by side, it is characterized in that: form an air-flow zone of high pressure in the zone that this exhaust outlet and first, second centrifugal cutter surround, the gas that flow to this zone of high pressure is flowed to exhaust outlet by backstop.
2. the double fan heat radiation module according to claim 1, it is characterized in that: this first, second centrifugal cutter is done rotation in opposite directions in contiguous exhaust outlet one side.
3. according to the described double fan of claim 1 heat radiation module, it is characterized in that: this shell comprises a base plate, a cover plate and a sidewall, and this base plate, cover plate and sidewall are encircled into a space of accommodating first, second centrifugal cutter.
4. the double fan heat radiation module according to claim 3, it is characterized in that: the relative position with exhaust outlet of sidewall forms two volutes and arches upward.
5. the double fan heat radiation module according to claim 4, it is characterized in that: sidewall and exhaust outlet relative inner position form two volute runners.
6. according to the described double fan of claim 5 heat radiation module, it is characterized in that: the arch upward top of terminal jointing place of this two volute is positioned at the top of first, second centrifugal cutter revolution axial connecting line.
7. according to the described double fan of claim 5 heat radiation module, it is characterized in that: the arch upward top of terminal jointing place of this two volute lays respectively at the both sides that first, second centrifugal cutter turns round axial connecting line with exhaust outlet.
8. the double fan heat radiation module according to claim 3, it is characterized in that: this first wind inlet, second wind inlet are opened on the cover plate.
9. the double fan heat radiation module according to claim 3, it is characterized in that: this first wind inlet, second wind inlet are opened on the base plate.
10. the double fan heat radiation module according to claim 3, it is characterized in that: this first wind inlet, second wind inlet are opened on the sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510035336A CN100591922C (en) | 2005-06-14 | 2005-06-14 | Radiating mould assembly with double fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510035336A CN100591922C (en) | 2005-06-14 | 2005-06-14 | Radiating mould assembly with double fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1880775A CN1880775A (en) | 2006-12-20 |
| CN100591922C true CN100591922C (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510035336A Expired - Fee Related CN100591922C (en) | 2005-06-14 | 2005-06-14 | Radiating mould assembly with double fan |
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| Country | Link |
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| CN (1) | CN100591922C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108980A (en) * | 2009-12-23 | 2011-06-29 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| CN105782084A (en) * | 2016-02-26 | 2016-07-20 | 合肥联宝信息技术有限公司 | Fan and notebook computer |
| CN106122051A (en) * | 2016-06-14 | 2016-11-16 | 合肥联宝信息技术有限公司 | A kind of fan and notebook computer |
| CN108458439A (en) * | 2018-03-30 | 2018-08-28 | 浙江宣和电器有限公司 | Ceiling mounting type smoke eliminator mounting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7802041U1 (en) * | 1978-01-24 | 1978-05-03 | G. Bauknecht Gmbh, Elektrotechnische Fabriken, 7000 Stuttgart | Cooker hood |
| US6396689B1 (en) * | 2000-08-02 | 2002-05-28 | Ming-Chuan Yu | Computer mainframe cooling structure |
| DE20209392U1 (en) * | 2002-06-17 | 2002-09-12 | Clevo Co | Radiating fan unit |
| EP0940632B1 (en) * | 1998-03-05 | 2002-11-13 | BSH Bosch und Siemens Hausgeräte GmbH | Extractor hood |
| CN2702097Y (en) * | 2004-02-26 | 2005-05-25 | 宣普科技股份有限公司 | Double centrifugal fan |
-
2005
- 2005-06-14 CN CN200510035336A patent/CN100591922C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7802041U1 (en) * | 1978-01-24 | 1978-05-03 | G. Bauknecht Gmbh, Elektrotechnische Fabriken, 7000 Stuttgart | Cooker hood |
| EP0940632B1 (en) * | 1998-03-05 | 2002-11-13 | BSH Bosch und Siemens Hausgeräte GmbH | Extractor hood |
| US6396689B1 (en) * | 2000-08-02 | 2002-05-28 | Ming-Chuan Yu | Computer mainframe cooling structure |
| DE20209392U1 (en) * | 2002-06-17 | 2002-09-12 | Clevo Co | Radiating fan unit |
| CN2702097Y (en) * | 2004-02-26 | 2005-05-25 | 宣普科技股份有限公司 | Double centrifugal fan |
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| Publication number | Publication date |
|---|---|
| CN1880775A (en) | 2006-12-20 |
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