CN101325859A

CN101325859A - Radiating device

Info

Publication number: CN101325859A
Application number: CNA2007100749532A
Authority: CN
Inventors: 李冬云
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2007-06-13
Filing date: 2007-06-13
Publication date: 2008-12-17
Anticipated expiration: 2027-06-13
Also published as: CN101325859B

Abstract

A radiation means for the radiation of a CPU on a PCB includes: a base, a radiation fin group aligned on the base and a fan disposed at one side of the radiation fin group and the base. The base has a guide surface formed on a side opposite to the fan to induce a small part of air flow generated by the fan to the hot electronic elements around the CPU. The fan arranged at one side of the radiation means faces to the guide surface which is able to induce the air flow generated by the bottom part of the fan to the electronic elements around the CPU, thereby taking reasonable and full advantage of the air flow generated by the fan to cool the CPU as well as the peripheral electronic elements.

Description

Heat abstractor

Technical field

The present invention relates to a kind of heat abstractor, be meant a kind ofly have flow-guiding structure and be used for heat abstractor especially electronic element radiating.

Background technology

Along with developing rapidly of electronic industry, increase substantially as the arithmetic speed of electronic component in the computer, the heat of its generation also increases severely thereupon, and how the heat with electronic component distributes, and to guarantee its normal operation, is the essential problem that solves of dealer always.As everyone knows, the central processing unit that is installed on the motherboard is the core of computer system, and when computer moved, central processing unit produced heat.Too much heat can cause central processing unit normally to move.For effectively distributing the heat that central processing unit produces in running, on circuit board, install a heat abstractor that contacts with central processing unit additional usually so that the heat of its generation is distributed.In addition, some heat-generating electronic elements such as transistor are installed around central processing unit thick and fast, for guaranteeing the operation stability of system, need to solve the heat dissipation problem of these heat-generating electronic elements equally, but because spatial limitation and cost consideration can't be installed special heat abstractor to these electronic components usually.

Chang Yong heat abstractor generally comprises a pedestal, some parallel pedestals and spaced radiating fin and is installed on the radiating fin top or the fan of a side now.This fan generally is to be installed on the heat abstractor by fan Fixture or wind scooper.Yet the forced draft that this fan produces generally is all to blow to heat abstractor to guarantee the radiating efficiency to central processing unit, but can't take into account the heat radiation of peripheral electronic component; Perhaps, flow dividing structure is set on wind scooper, the part airflow diversion is come out to lead peripheral electronic component to reach they heat radiations, still will largely reduce the air-flow that blows to heat abstractor again like this, thereby influence the radiating effect of heat abstractor central processing unit.

Summary of the invention

The present invention aims to provide a kind of heat abstractor that effectively utilizes fan airstream.

A kind of heat abstractor, be used for the central processing unit that is installed on the circuit board is dispelled the heat, comprise a pedestal, be arranged in the groups of fins on the described pedestal and be installed in described groups of fins and a fan of described pedestal one side, described pedestal is formed with guide face on a side of fan, be installed in the heat-generating electronic elements of described central processing unit periphery with the fraction air-flow guiding that fan is produced.

Above-mentioned heat abstractor is installed in the fan of one side over against this wind-guiding face, the electronic component of the air-flow guiding central processing unit periphery that this wind-guiding face can produce this fan bottom part, and the air-flow cooling central processing unit that can sufficiently and reasonably utilize fan to produce is taken into account the heat radiation to its peripheral electronic component simultaneously.

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

Description of drawings

Fig. 1 is the assembly drawing of heat abstractor in one embodiment of the invention.

Fig. 2 is the three-dimensional exploded view of Fig. 1.

Fig. 3 is the part exploded view of Fig. 1.

Fig. 4 is the inverted view of pedestal among Fig. 2.

Embodiment

It is used for the heat abstractor of implementing for the present invention one illustrated in figures 1 and 2 the heat-generating electronic elements as transistor and so on (not label) that is installed in the central processing unit 64 on the circuit board 60 and be installed on around this central processing unit 64 is dispelled the heat, and this heat abstractor comprises a pedestal 10, be positioned at a groups of fins 30 on the pedestal 10, be connected this pedestal 10 with groups of fins 30 heat conduction a heat pipe heat 20, this is installed in the wind scooper 40 of groups of fins 30 1 sides be installed in a fan 50 on this wind scooper 40.

Foregoing circuit plate 60 evenly offers perforation 62 around central processing unit 64, this perforation 62 is used for supplying fixture (figure does not show) to pass and this heat abstractor is fixed on this circuit board 60.

See also Fig. 4, said base 10 is roughly a rectangular metal plate body, this middle part, pedestal 10 bottom surfaces offers one first storage tank 11 that cooperates with this heat pipe heat 20, offers 2 second storage tanks 12 about these first storage tank, 11 symmetries in these first storage tank, 11 both sides.This first storage tank 11 is elongated and parallel with 10 liang of relative long edges of this pedestal.This second storage tank 12 comprises the both wing portions 122 that reaches from the angled diagonally extending laterally of these main part 120 opposite ends near also parallel main part 120 with first storage tank 11.Two ends of this first storage tank 11 and second storage tank 12 all offer the through hole 13 that runs through these pedestal 10 top and bottom, and this through hole 13 is circular, are used for wearing for this heat pipe heat 20.This pedestal 10 is vertical respectively two raised lines 14 that protrude out in first storage tank 11 and the junction of 12 of two second storage tanks.These pedestal 10 bottom surfaces are convexly equipped with a trapezoid boss 15 at one second storage tank 12 main parts, 120 middle parts and near between these second storage tank, 12 edges, and this trapezoid boss 15 is contour with this raised line 14, and its width successively decreases to these pedestal 10 edges from second storage tank 12; Near position another second storage tank, 12 main parts, 120 middle parts, these pedestal 10 bottom surfaces is convexly equipped with a triangle boss 16 corresponding with this trapezoid boss 15, and contour and its base of this triangle boss 16 and trapezoid boss 15 overlaps with an edge of this second storage tank 12.This pedestal 10 forms a guide face 17 near a side of this triangle boss 15, this guide face 17 comprises along pedestal 10 upper surfaces a thin flat plate face 170 that outwards protrudes out and an arcwall face 172 that is connected this platen surface and is caved in gradually and form to its bottom surface by pedestal 10 end faces from this side, with the electronic component of part air-flow guiding around central processing unit 64 that fan 50 is produced.This pedestal 10 is respectively being offered a screw 18 near on the corner of guide face 17, in order to cooperate with screw (figure does not show) wind scooper 40 is installed.Each corner of this pedestal 10 is along the diagonal fixed arm 19 that stretches out, and these fixed arm 19 proximal ends are offered an installing hole 190 that wears for fixture (figure does not show).

Above-mentioned heat pipe heat 20 comprises one first heat pipe 22 that all takes the shape of the letter U substantially and 2 second heat pipes 24 that lay respectively at these first heat pipe, 22 both sides.This first heat pipe 22 comprises that first a straight endotherm section 220 reaches 2 first heat release section 222 of extending vertically upward from these first endotherm section, 220 two ends, this second heat pipe 24 comprises one second endotherm section 240 and 2 second heat release section 242 of extending vertically upward from these second endotherm section, 240 two ends, this second endotherm section 240 is shaped as and this pedestal 10 second storage tanks 12 corresponding shape, it comprises that a straight main part (not label) reaches the both wing portions (not label) that extends to lopsidedness from these main part two ends, and this alar part end extends this second heat release section 242 more vertically upward.This first endothermic section 220 and second endothermic section 240 are contained in first,

second storage tank

11,12 of this pedestal 10, and their upper and lower surface all is processed into the plane, so that its end face contacts with the bottom surface of first and

second storage tank

11,12 of this pedestal 10, its bottom surface forms the plane that contacts with central processing unit 64 with rectangular protuberance 14, trapezoidal protuberance 15 and the triangle protuberance 16 of pedestal 10 bottom surfaces.

Above-mentioned groups of fins 30 comprises the some fin 32 that formed by rectangular metal sheet, and these fin 32 parallel these pedestal 10 surfaces and mutual equi-spaced apart form the passage (not label) that air feed stream passes through.This groups of fins 30 is respectively offered one group of containing hole that distributes side by side 34 at its place, nearly two ends, every group of containing hole 34 comprises also three containing holes 34 of vertical fins 32 extensions that are parallel to each other at interval, and the heat release section 222,242 that this containing hole 34 is used for

heating tube

22,24 places.These groups of fins 30 relative two sides are at the vertical catching groove 36 of respectively offering a vertical fins 32 near pedestal 10 wind-guiding faces 17 1 sides, and this catching groove 36 is used for fixing this wind scooper 40.

Please consult Fig. 3 simultaneously, above-mentioned wind scooper 40 cooperates with the catching groove 36 of groups of fins 30 and is fixed to groups of fins 30 1 sides, and it comprises a rectangular-shaped top plate 42 and two rectangular side panels 44 of extending vertically downward from these top board 42 two ends.Each is provided with one first stator 422 that extends vertically downward place, the nearly two ends of these top board 42 1 lateral edges, offers mating holes 4220 in the middle of this stator 422, to cooperate fan 50 fixing with screw (figure does not show).These side plate 44 bottoms vertically inwardly extend in parallel a mounting panel 442, and this mounting panel 442 is being provided with an open-work 4420 corresponding with the screw 18 of pedestal 10 near groups of fins 30 1 ends.One second installation sheet 444 extends vertically downward from the end margin of this mounting panel 440 away from this open-work 4420, and these second installation sheet, 444 proximal end places offer for screw and wear to fix a mating holes 4440 of this fan 50.Length that this second installation sheet 444 extends downwards are than the length of this first installation sheet 422, make fan 50 be mounted to the guide face 17 that just in time covers pedestal 10 behind this wind scooper 40.This sidewall 44 vertically inwardly convexes with two cramps 446 near a lateral edges of groups of fins 30, and this two cramp 446 is separated by and mutually respectively near these sidewall 44 two ends, with catching groove 36 snappings of groups of fins 30.

Said fans 50 comprise one with wind scooper 40 corresponding rectangular frames (not label), an open-work 52 is respectively offered in each corner of this framework, these open-works 52 are used for passing

mating holes

4220,4420 corresponding screwing togather with first, second installation sheet 422,442 of this wind scooper 40 for screw, and fan 50 is fixing.

When above-mentioned heat abstractor was in assembled state, the corresponding containing hole 34 that is positioned at this groups of fins 30 above pedestal 10 is passed and be contained in to the heat release section 222,242 of this first heat pipe 22 and second heat pipe 24 from the through hole 13 of pedestal 10; The endotherm section 220,240 of this first heat pipe 22 and second heat pipe 24 is corresponding respectively to be contained in first storage tank 11 and second storage tank 12 of this pedestal 10, and the bottom surface of these endotherm sections 220,240 also closely contacts with central processing unit 64 in use with rectangular protuberance 14, trapezoidal protuberance 15 and triangle protuberance 16 formation one contact-making surfaces of pedestal 10 bottom surfaces.This fan 50 by screw pass on it open-work 52 again with wind scooper 40 first, second installation sheets 422,442

mating holes

4220,4420 corresponding screwing togather and combine with wind scooper 40.The cramp 446 of this wind scooper 40 and these groups of fins 30 catching grooves 36 snappings, 4420 pairs of open-works on its fixing feet 442 should pedestal 10 screws 18 and are passed through screw.

Above-mentioned heat abstractor in use, this heat abstractor is fixed on the circuit board 60 by fixture, the electronic component of this central processing unit 64 and periphery thereof is positioned at pedestal 10 belows of this heat abstractor, the endotherm section 220,240 of these

heat pipes

22,24 is directly from central processing unit 64 heat absorptions, conduct heat on the groups of fins 30 by its heat unit 222,224 again, under the heat exchange action by the forced draft that produces with fan 50, the heat of groups of fins 30 is dispersed in the surrounding environment fast at last.In addition, these pedestal 10 1 sides form an arc wind-guiding face 17, the fan 50 that is installed in this heat abstractor one side simultaneously covers on this wind-guiding face 17, the air-flow guiding that this wind-guiding face 17 can produce these fan 50 bottom parts is installed in the electronic component of central processing unit 64 peripheries, thereby the air-flow cooling central processing unit 64 that this heat abstractor can sufficiently and reasonably utilize fan 50 to produce is taken into account the heat radiation to its peripheral electronic component simultaneously, and then the stability of the system of assurance.

Claims

1. heat abstractor, be used for the central processing unit that is installed on the circuit board is dispelled the heat, comprise a pedestal, be arranged in the groups of fins on the described pedestal and be installed in described groups of fins and a fan of described pedestal one side, it is characterized in that: described pedestal is formed with guide face on a side of fan, is installed in the heat-generating electronic elements of described central processing unit periphery with the fraction air-flow guiding that fan is produced.

2. heat abstractor as claimed in claim 1 is characterized in that: described guide face is from the top down gradually to described pedestal side sunken inside.

3. heat abstractor as claimed in claim 2 is characterized in that: described guide face has an arcwall face.

4. heat abstractor as claimed in claim 1 is characterized in that: comprise that also one is set in the heat pipe heat in described groups of fins and the described pedestal, described heat pipe heat bottom is embedded in base bottom surface and contacts with central processing unit in use.

5. heat abstractor as claimed in claim 4, it is characterized in that: described heat pipe heat comprises some heat pipes, described heat pipe comprises an endotherm section and two heat release section of extending vertically upward from described endotherm section two ends, described endotherm section is embedded in described pedestal lower surface side by side, and described heat release section is passed described pedestal and is set in the groups of fins.

6. heat abstractor as claimed in claim 4, it is characterized in that: described heat pipe heat comprises one first heat pipe of the bending that all takes the shape of the letter U and is positioned at 2 second heat pipes of the described first heat pipe both sides, the endotherm section of described second heat pipe comprises a straight main part and from the angled both wing portions that extends to lopsidedness of described main part opposite end, the main part of described first heat pipe endothermic section and described 2 second heat pipe endothermic sections is embedded in described base bottom surface side by side.

7. as claim 5 or 6 described heat abstractors, it is characterized in that: described base bottom surface has protruded out protuberance around described heat pipe heat-absorbing section, and described protuberance forms the plane that contacts with described central processing unit with described heat pipe heat-absorbing section bottom surface.

8. heat abstractor as claimed in claim 1, it is characterized in that: also comprise a wind scooper, described fan is installed to described groups of fins and described pedestal one side by described wind scooper, described wind scooper comprises a top board and the biside plate that extends vertically downward from described top board two ends, and described biside plate is near convexing with the cramp of holding to the described groups of fins two sides in described groups of fins one side direction in opposite directions.

9. heat abstractor as claimed in claim 8 is characterized in that: described groups of fins two sides are provided with the draw-in groove with the holding of described wind scooper cramp.

10. heat abstractor as claimed in claim 8, it is characterized in that: each inside horizontal-extending one fixed head of described side plate bottom, place, the nearly two ends of described top board lateral margin and described fixed head one end margin all are extended with installation sheet vertically downward, and described installation sheet offers with screw fit fan is fixed mating holes on it.

11. heat abstractor, be used for a plurality of electronic components are dispelled the heat, comprise that a pedestal that contacts with electronic component wherein and some fin, a fan that is formed on the base top surface are installed on described pedestal and fin one side, it is characterized in that: described base top surface protrudes out and exceeds the bottom surface that described pedestal contacts with electronic component towards described fan directional, so that form the space that a ccontaining other electron component and air feed fan part air-flow flow between described base top surface and the bottom surface.

12. heat abstractor as claimed in claim 11, it is characterized in that: described base top surface exceeds and forms a guide face that tilts between described base bottom surface part and the described base bottom surface, and the air-flow that produces with the guiding fan flows into described space and other electron component is dispelled the heat.

13. heat abstractor as claimed in claim 12 is characterized in that: comprise that also at least one heat pipe connects described pedestal and described fin, described at least one heat pipe comprises that one is incorporated into the endothermic section of described base bottom surface and is arranged in heat unit in the described fin.

14. heat abstractor as claimed in claim 11 is characterized in that: described fan is installed on described fin one side by a wind scooper.Two side plates that described wind scooper comprises a top board and extends downwards from described top board two ends.