CN2681345Y

CN2681345Y - Heat sink using heat pipe

Info

Publication number: CN2681345Y
Application number: CN 200320128888
Authority: CN
Inventors: 李学坤; 赖振田; 谭治斌
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-12-26
Filing date: 2003-12-26
Publication date: 2005-02-23
Anticipated expiration: 2013-12-26

Abstract

Disclosed is a heat sink using heat pipes, comprising a radiator, a first heat pipe and a second heat pipe. The radiator is composed of a first base and a plurality of radiation fins, and the heat absorption ends of the first heat pipe and the second heat pipe are glued on the first base of the radiator. The heat radiation end of the first heat pipe is inserted in the centre parts of the radiation fins of the radiator, and the heat radiation end of the second heat pipe is inserted on the tops of the radiation fins of the radiator.

Description

Heat-pipe radiating apparatus

[technical field]

The utility model is about a kind of heat abstractor, particularly the heat abstractor that combines with radiator about a kind of heat pipe.

[background technology]

Along with developing rapidly of electronic industry, increase substantially as the arithmetic speed of electronic components such as central processing unit, 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 problem of industry in research always.

Traditional radiating mode is the radiator that a metal material is set above heat-generating electronic elements, this radiator has pedestal, the pedestal lower surface contacts with electronic component, its upper surface then is provided with some fins, pedestal absorbs the heat that electronic component produces, and via fin heat is distributed in the surrounding air, for strengthening the rate of heat exchange of fin and surrounding air, usually further above fin, add and put a fan, to strengthen gaseous exchange.Though above-mentioned heat abstractor can distribute the part heat that electronic component produces, because the thermal resistance of metal material self, the heat poly combines near the radiator base, the less radiating fin top that conducts to.The radiating fin head portion can not fully outwards dispel the heat, and influences the radiating efficiency of entire radiator.

At present, industry adopts the heat abstractor of heat pipe conduction heat increasing, heat pipe is to seal pack into capillary structure thing (as metal powder sintered thing, groove structure, screen net structure etc.) and hydraulic fluid (as water, alcohol etc.) in the metal body, be evacuated to vacuum state then, rely on carry out liquid gas two phase change after hydraulic fluid is heated and absorb, release heat, and because heat pipe has certain length, can be with heat transferred extremely than far-end.No. the 547914th, Taiwan patent announcement promptly discloses a kind of heat radiator of electronic element that uses heat pipe, and its heat pipe roughly is " U " shape, and the heat pipe two ends are plugged in respectively in two pairs of folded radiator bases, and wherein the outer surface of a pedestal contacts with electronic component.This kind mode than good utilisation heat pipe and radiator advantage separately, heat is fully outwards distributed.But this kind mode still exists the radiating fin top of two radiators to fail fully to dispel the heat, and when heat radiation is had relatively high expectations, can not satisfy the problem that heat radiation requires.

[summary of the invention]

The purpose of this utility model is to provide a kind of heat-pipe radiating apparatus that utilizes heat pipe and radiator heat-dissipation advantage simultaneously.

For achieving the above object, the utility model has adopted following technical scheme: the utility model heat-pipe radiating apparatus comprises a radiator, one first heat pipe and one second heat pipe.This radiator comprises one first pedestal and some radiating fins.The heat absorbing end of first heat pipe and second heat pipe is amplexiformed on radiator first pedestal, and the radiating end of first heat pipe is plugged in radiator heat-dissipation fin middle part, and the radiating end of second heat pipe is plugged in radiator heat-dissipation fin top.

First heat pipe of the present utility model and second heat pipe are respectively the middle part and the top of heat guiding radiating fin, make heat be transmitted to the radiating fin various piece equably, relative prior art, the utility model heat-pipe radiating apparatus has made full use of the heat-sinking capability of radiator, has improved radiating efficiency.

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

[description of drawings]

Fig. 1 is the solid combination schematic diagram of the utility model heat-pipe radiating apparatus first preferred embodiment.

Fig. 2 is the perspective exploded view of Fig. 1 heat-pipe radiating apparatus.

Fig. 3 is an end view of Fig. 1 heat-pipe radiating apparatus.

Fig. 4 is the opposite side view of Fig. 1 heat-pipe radiating apparatus.

Fig. 5 is the solid combination schematic diagram of the utility model heat-pipe radiating apparatus second preferred embodiment.

[embodiment]

See also Fig. 1 to Fig. 4, first preferred embodiment of the utility model heat-pipe radiating apparatus comprises a radiator 10, one first heat pipe 50 and one second heat pipe 70.These radiator 10 bottom surfaces contact with heat-generating electronic elements (figure does not show).

Radiator 10 comprises one first pedestal 11, be welded in the radiating fin on first pedestal 11 and place second pedestal 21 of radiating fin top.This radiating fin is divided into two-layer up and down, and the upper strata is second fin 25, and lower floor is first fin 15.

First pedestal, 11 upper surfaces offer two parallel semi-circular recesses, corresponding with it, also offer two parallel grooves on first fin 15, after first fin 15 is welded on first pedestal 11, groove on first pedestal 11 and first fin 15 is corresponding mutually respectively, be combined to form two accepting holes 12,13, plug wherein for first heat pipe 50 and second heat pipe 70 respectively.First fin, 15 tops form a groove and match with a cushion block 40.

Cushion block 40 comprises a horizontal bottom and a trapezoidal end face.Its bottom surface can be fitted on first fin, 15 end faces, and it is corresponding with the groove on first fin, 15 tops to offer a semi-circular recesses on this bottom surface, and the two closes up then can form an accepting hole 17, accommodates first heat pipe 50 in wherein.

Formation one of second fin, 25 lower ends and the corresponding trapezoidal groove of cushion block 40 trapezoidal end faces.A groove is offered in second fin, 25 upper ends, and is corresponding with it, and second pedestal, 21 lower surfaces are also offered a semi-circular recesses, and after second pedestal 21 was welded on second fin 25, the two fit like a glove, and formed an accepting hole 23, can accommodate second heat pipe 70 in wherein.

First heat pipe 50 and second heat pipe 70 all are " U " shape, have two bending ends that are parallel to each other.The one bending end is inserted in respectively in the accepting hole 12,13 that first fin 15 and first pedestal 11 be combined into, and is used to absorb heat; Another bending end is inserted in respectively in the accepting hole 17 that first fin 15 and cushion block 40 be combined into, and in the accepting hole 23 that is combined into of second fin 25 and second pedestal 21, is used for distribute heat.

The accepting hole 12,13 that is used to hold first,

second heat pipe

50,70 heat absorbing end that first fin 15 and first pedestal 11 are combined into also can be opened on first pedestal 11 fully, and promptly first,

second heat pipe

50,70 heat absorbing end are plugged in first pedestal 11.Correspondingly, the radiating end of first,

second heat pipe

50,70 can be plugged in respectively in cushion block 40, second pedestal 21, but not in the accepting hole 17 that first fin 15 and cushion block 40 are combined into or in the accepting hole 23 that is combined into of second fin 25 and second pedestal 21.

Fig. 5 is the solid combination schematic diagram of the utility model second preferred embodiment.The difference of this embodiment and first preferred embodiment is: the radiating fin of radiator 10 ' is non-to be divided into two-layerly up and down, but the radiating end of radiating fin 15 ', the first heat pipe 50 of one directly is plugged in radiating fin 15 ' middle part.And the heat absorbing end of first heat pipe 50 is inserted in the accepting hole that radiating fin 15 ' and first pedestal 11 be combined into, the heat absorbing end of second heat pipe 70 is inserted in the accepting hole that radiating fin 15 ' and first pedestal 11 be combined into, and radiating end is inserted in the accepting hole that radiating fin 15 ' and second pedestal 21 be combined into.

Claims

1. heat-pipe radiating apparatus, comprise a radiator, one first heat pipe and one second heat pipe, this radiator has one first pedestal and some radiating fins, the heat absorbing end of this first heat pipe and second heat pipe is amplexiformed on radiator first pedestal, it is characterized in that: the radiating end of first heat pipe and second heat pipe is inserted in the radiator different parts at certain intervals.

2. heat-pipe radiating apparatus as claimed in claim 1, it is characterized in that: on first pedestal and radiating fin bottom respectively forms two grooves, and the groove on first pedestal and the radiating fin is respectively mutually corresponding, closes up formation and is inserted in wherein accepting hole for first heat pipe and second heat pipe respectively.

3. heat-pipe radiating apparatus as claimed in claim 1 is characterized in that: first heat pipe and two heat pipe heat radiation ends are plugged in first pedestal.

4. heat-pipe radiating apparatus as claimed in claim 1 is characterized in that: this radiator also comprises second pedestal of being located on the radiating fin.

5. heat-pipe radiating apparatus as claimed in claim 4 is characterized in that: form a groove respectively on the radiating fin top and second pedestal, this two groove closes up into one and is inserted in wherein accepting hole for the second heat pipe heat radiation end.

6. heat-pipe radiating apparatus as claimed in claim 4 is characterized in that: the second heat pipe heat radiation end is plugged in second pedestal.

7. heat-pipe radiating apparatus as claimed in claim 4 is characterized in that: this radiating fin is divided into two-layer up and down, and the upper strata is second fin, and lower floor is first fin.

8. heat-pipe radiating apparatus as claimed in claim 7 is characterized in that: between first fin and second fin cushion block is set.

9. heat-pipe radiating apparatus as claimed in claim 8 is characterized in that: this cushion block comprises a horizontal bottom and a trapezoidal end face, and the trapezoidal groove of this cushion block is held in second fin lower end formation one.

10. heat-pipe radiating apparatus as claimed in claim 8 is characterized in that: form a groove respectively on the first fin top and the cushion block, this two groove closes up into one and is inserted in wherein accepting hole for the first heat pipe heat radiation end.