CN100421238C

CN100421238C - Radiating device

Info

Publication number: CN100421238C
Application number: CNB2005100373525A
Authority: CN
Inventors: 鲁翠军; 曹凌波; 孙志强
Original assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2005-09-16
Filing date: 2005-09-16
Publication date: 2008-09-24
Anticipated expiration: 2025-09-16
Also published as: CN1933130A

Abstract

This invention relates to a radiation device used in radiating a heating electronic element including a first radiator, a second radiator and a centrifugal fan, in which, said fan has an air inlet and an outlet opposite to the first and second radiators separately, the high speed gas flow from the air inlet and outlet of the fan exchanges fully with the two radiators so that the usability and radiation performance of the radiator are increased.

Description

Heat abstractor

[technical field]

The present invention relates to a kind of heat abstractor, be meant a kind of heat abstractor that is provided with the cooling electronic components of fan especially.

[background technology]

As everyone knows, electronic component such as central processing unit produces a large amount of heat in running.For preventing that thereby this heat-generating electronic elements from causing its temperature rising to cause its fluctuation of service, this electronic component need install a radiator usually additional with auxiliary its heat radiation because of the accumulation of heat.

Usually, a radiator comprises a heat-conducting base and is located at this base one lip-deep some radiating fins.During use, another surface of this base conforms to and absorbs the heat that electronic component produces on the heat-generating electronic elements, by radiating fin these heats is distributed to surrounding space then.Yet, development along with electronic industry, the speed of service and the overall performance of electronic component constantly promote, its caloric value also increases thereupon, the simple radiating requirements of using above-mentioned radiator can not satisfy heat-generating electronic elements is so industry is added a tube-axial fan usually on this radiator, to provide the strong convection air to this radiator, thereby accelerate the radiating rate of this radiator, avoid heat gathering on electronic component.

Yet electronic component is because its degree of integration promotes day by day and operation function is become stronger day by day, and its caloric value increases severely thereupon, and heat dissipation problem has become to influence the key factor of electronic component runnability.Above-mentioned tube-axial fan is because the wind speed of its generation is low, and the air-flow that provides can not carry out sufficient heat exchange with radiating fin, and radiating effect is undesirable.So there is the dealer in heat abstractor, to use centrifugal fan to substitute tube-axial fan.This centrifugal fan has an air inlet through hollow shaft mouth and a tangential air outlet, and this fan all produces the air-flow of bigger wind speed at its air inlet and air outlet place.Usually, this air outlet provides high velocity air to quicken its heat radiation over against radiator to it.And radiator only is set at the air outlet place, and then the high velocity air of this fan generation can not make full use of, and promptly the utilance of fan is not high.So this heat abstractor needs further to improve.

[summary of the invention]

In view of this, be necessary to provide a kind of heat abstractor that makes full use of fan.

A kind of heat abstractor comprises that one first radiator and is arranged at the centrifugal fan on this first radiator, this fan has an air inlet and an air outlet, this heat abstractor also comprises one second radiator, this wind inlet of fan is relative with this second radiator with this first radiator respectively with air outlet, this fan comprises an impeller, this air inlet be positioned at this impeller axially on, this air outlet is positioned on this impeller tangential, this first radiator to should air inlet and be positioned at this impeller axially on, this second radiator is to should air outlet and be positioned on this impeller tangential.

Compared with prior art, the air inlet of the fan of heat abstractor and air outlet are respectively to there being first, second radiator, thereby high velocity air and this first, second radiator that this wind inlet of fan and air outlet place produce carry out sufficient heat exchange, the utilance of fan improves, and the heat dispersion of this heat abstractor improves.

With reference to the accompanying drawings, the invention will be further described in conjunction with the embodiments.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of heat abstractor one embodiment of the present invention.

Fig. 2 is the stereogram of fan among Fig. 1.

Fig. 3 is the assembly drawing of first and second radiator and heat pipe among Fig. 1.

Fig. 4 is the part assembly drawing of Fig. 1.

Fig. 5 is the assembly drawing of Fig. 1.

[embodiment]

See also Fig. 1, this heat abstractor comprises that one first radiator 10, is arranged at the fan Fixture 50, that centrifugal fan on this first radiator 10 30, is fixed to this fan 30 on this first radiator 10 and is located at second radiator 70 of these fan 30 1 sides and connects this first radiator 10 and two heat pipes 90 of second radiator 70.

See also Fig. 3, above-mentioned first radiator 10 comprises a base 12 and is located at a fins group 14 on this base 12.This base 12 has relative upper surface, lower surface, and this lower surface is a plane, to conform on the heat-generating electronic elements (figure does not show).This upper surface has extended upward a trapezoidal projection 121, one relative both sides of this projection 121 have two symmetrical heat conduction inclined-planes (not indicating), this projection 121 is provided with two parallel grooves 123 in conjunction with heat pipe 90 between this two inclined-plane, the cross section of each groove 123 is semicircle.Four jiaos of fixing holes 125 of respectively establishing a fan attachment fixed mount 50 of this upper surface.Fins group 14 comprises some fins 14, and each fin 14 comprises that a body 141 reaches by vertically extending two flangings 143 of these body 141 relative both side edges, the body 141 of two flangings, the 143 butt adjacent fin 14 of each fin 14.14 of these some fins form some gas channels, the root edge middle part indent of the body 141 of these some fins 14 forms the groove (not indicating) of the projection 121 of accommodating base 12, this groove extends to form two parallel grooves 145 in conjunction with heat pipe 90 in groove 123 places of corresponding base 12 to body 141 directions, and the cross section of each groove 145 is semicircle.This fins group 14 is cross-placed on this base 12, and the projection 121 of base 12 is contained in the groove of fins group 14, and two inclined-planes of projection 121 combine with each fin 14.

See also Fig. 2, said fans 30 comprises a housing 31 and is located at impeller 32 in this housing 31.This housing 31 have in length and breadth towards air inlet 311 and air outlet 313, this air inlet 311 is located at the bottom surface of this housing 31, its be positioned at impeller 32 axially on, this air outlet 313 is located at the side of this housing 31, it is positioned on impeller 32 tangential.This housing 31 is provided with the fixed part 315 of two relative fan attachments 30 in its periphery, and each fixed part 315 is provided with a button hole (indicating).

Please consult Fig. 1 again, fan Fixture 50 is tabular, comprises that one places the fixed head 51 and a supporting bracket 53 of placing second radiator 70 of fan 30.This fixed head 51 is established the opening 511 of air feed stream circulation in its middle part.One relative both sides of this fixed head 51 are extended with two location-plates 513 downwards, and the end of each location-plate 513 extends to form this fan Fixture 50 is fixed to two angles 515 on the base 12, and each angle 515 is provided with a fixing hole (figure does not show).Extend upward two fixed legs 517 that are provided with fan attachment 30 on the fixed head 51, this two fixed leg 517 staggers mutually with above-mentioned angle 515, to avoid it angle 515 is fixed to interference on the base 12.Supporting bracket 53 extends to form from a side one of this fixed head 51, and the relative both sides of one have extended upward two baffle plates 531, and the outside at the two ends of each baffle plate 531 has respectively extended to form a buckle ear 533, and this buckle ear 533 is provided with a button hole (not indicating).

Above-mentioned second radiator 70 comprises some fins, and each fin comprises a body 711 and two flangings 713 that directly extended by these body 711 upper and lower end marginal lappets, the body 711 of two flangings, the 713 butt adjacent fin of each fin.Form some gas channels between these some fins, the body 711 of these some fins is provided with two through holes 715 in conjunction with heat pipe 90, this two through hole 715 not on sustained height.

Above-mentioned heat abstractor also comprises the lid 60 of a cover cap second radiator 70, this lid 60 comprises a top board 611 and four fixing feet 613 that extend to form from these top board 611 1 relative both side ends downwards, the end of each fixing feet 613 extends to form one first fixed part 615 outwards, downwards, and the end that forms an elasticity second fixed part 617, the second fixed parts 617 in the outside of first fixed part 615 is provided with a barb 619.

Each heat pipe 90 is " U " shape, is filled with the phase change working media in it.This heat pipe 90 comprises one first heat transfer segment 911, one second heat transfer segment 913 and connects the interlude 915 of this first, second heat transfer segment 911,913.The junction of each section of this heat pipe 90 forms a fillet.

Please consult Fig. 3 again, first heat transfer segment 911 of above-mentioned each heat pipe 90 is bonded in the groove 123,145 of the projection 121 of base 12 and fins group 14, and second heat transfer segment 913 is bonded in the through hole 715 of fin of second radiator 70.

See also Fig. 4 and Fig. 5, during assembling, said fans fixed mount 50 is cross-placed on first radiator 10, fixed head 51 is positioned at fin 14 tops, location-plate 513 is positioned at relative both sides of fin 14, angle 515 correspondences are positioned on the fixing hole 125 of base 12, fan Fixture 50 are fixed on first radiator 10 with cooperating of angle 515 and fixing hole 125 by fixtures such as screw (figure does not show).Fan 30 places on the fixed head 51, and the opening 511 of its air inlet 311 corresponding fixed heads 51, and air outlet 313 is towards supporting bracket 53 directions, this fan 30 by its fixed part 315 be fixed on the fixed head 51 the cooperating of fixed leg 517 of fixed head 51.Supporting bracket 53 stretches out that first radiator, 10, the second radiators 70 place on this supporting bracket 53 and retaining places between two baffle plates 531 of supporting bracket 53, and the gas channel between the fin of this second radiator 70 is corresponding with the air outlet 313 of fan 30.Lid 60 cover caps are on this second radiator 70, the apical margin of the baffle plate 531 of the terminal butt supporting bracket 53 of its four fixing feet 613, first fixed part 615 of fixing feet 613 is kept out in the outside of baffle plate 531, the barb 619 of second fixed part 617 from the inboard fastener of baffle plate 531 on buckle ear 533, thereby these lid 60 fixed covers are located at second radiator, 70 tops.

During use, the bottom surface of the base 12 of first radiator 10 conforms on the heat-generating electronic elements, the heat that this electronic component produces is passed to heat pipe 90 and fins group 14 by these base 12 absorptions, and then the part heat is reached the fin of second radiator 70 by heat pipe 90, fan 30 impellers 32 running suction airs enter in fan 30 housings 31 by air inlet 311, and make first radiator, 10 zones of living in that are positioned at air inlet 311 belows have high velocity air to pass through, thereby carry out heat exchange with fin 14, simultaneously, the high velocity air that produces of fan 30 running blows to the fin of second radiator 70 and takes away heat on the fin.

Compared with prior art, among the present invention, first,

second radiator

10,70 connects by heat pipe 90, the heat that electronic component produces is evenly distributed on this second radiator, the air inlet 311 of fan 30 and air outlet 313 are respectively to should second radiator, thereby high velocity air and this second radiator that these fan 30 air inlets 311 and air outlet 313 places produce carry out sufficient heat exchange, and the utilance of fan significantly improves, and the heat dispersion of this heat abstractor and device integrated level improve.

Claims

1. heat abstractor, comprise that one first radiator and is arranged at the centrifugal fan on this first radiator, this fan has an air inlet and an air outlet, it is characterized in that: this heat abstractor also comprises one second radiator, this wind inlet of fan is relative with this second radiator with this first radiator respectively with air outlet, this fan comprises an impeller, this air inlet be positioned at this impeller axially on, this air outlet is positioned on this impeller tangential, this first radiator to should air inlet and be positioned at this impeller axially on, this second radiator is to should air outlet and be positioned on this impeller tangential.

2. heat abstractor as claimed in claim 1 is characterized in that: described fan comprises a housing, and described impeller is located in this housing, and described air inlet and air outlet are located on this housing.

3. heat abstractor as claimed in claim 2 is characterized in that: described first radiator is connected by a heat pipe with second radiator.

4. heat abstractor as claimed in claim 1 is characterized in that: described heat abstractor also comprises a fixed mount, and this fixed mount is arranged on described first radiator, and described fan is fixed on this fixed mount.

5. heat abstractor as claimed in claim 4 is characterized in that: described fixed mount comprises a fixed head and from the extended supporting bracket of this fixed head one side one, described fan is fixed on this fixed head, and described second radiator is fixed on this supporting bracket.

6. heat abstractor as claimed in claim 5 is characterized in that: corresponding first radiator of described fixed head is provided with an opening, and the air inlet of described fan is to should opening.

7. heat abstractor as claimed in claim 6 is characterized in that: described fixed head extension downwards is provided with two location-plates, and this two location-plate is positioned at relative both sides of described first radiator, and its end is fixed on this radiator.

8. heat abstractor as claimed in claim 5, it is characterized in that: described heat abstractor also comprises the lid of described second radiator of a cover cap, this lid comprises a top board and the fixing feet of extending from this top board downwards, this supporting bracket has extended upward two baffle plates in relative both sides of second radiator, and this two baffle plate is equipped with in the buckle ear of fastener fixing feet.

9. heat abstractor as claimed in claim 3, it is characterized in that: described first radiator comprises a base and is located at some fins of this base, this base comprises that one is entrenched in the projection in this fin, and this fin and projection correspondence are provided with the groove in conjunction with described heat pipe.

10. heat abstractor as claimed in claim 9 is characterized in that: described second radiator comprises some fins, and described heat pipe passes the fin of second radiator.