CN2757219Y

CN2757219Y - Display card heat radiator

Info

Publication number: CN2757219Y
Application number: CN 200420116644
Authority: CN
Inventors: 谢新茂
Original assignee: XIEXI MOTOR CO Ltd
Current assignee: XIEXI MOTOR CO Ltd
Priority date: 2004-12-09
Filing date: 2004-12-09
Publication date: 2006-02-08
Anticipated expiration: 2014-12-09

Abstract

The utility model relates to a radiator of a display card, which mainly comprises a heat radiation plate component and a flow guide component, wherein the heat radiation plate component is provided with a heat radiation plate; a heat radiation fin sheet set is arranged on the heat radiation plate; the flow guide component is connected with the heat radiation plate component and provided with a hollow wind guide cover; the front and the back ends of the wind guide cover are respectively provided with a front opening near the heat radiation plate and a back opening corresponding to the front opening; a shaft flow fan is arranged in the wind guide cover; the bottom of the heat radiation plate can be provided with the top contacted with a chip of the display card. When the shaft flow fan is rotated, hot air in the wind guide cover can be led to be discharged out of the heat radiation plate component and a machine box of the computer, thereby, air around the radiator can be circulated well, and the fin sheet can continuously carry out heat exchange with low-temperature air around the fin sheet.

Description

The display card heating radiator

Technical field

The utility model belongs to a kind of heating radiator, refers to a kind of display card heating radiator that has aerofoil fan and wind scooper and can lower the temperature to chip on the display card especially.

Background technology

Computer part now such as central processing unit, internal memory and display card or the like, the usefulness of handling data is more and more fast.With the display card is example, process chip on the display card on the market all includes up to ten million triodes at present, and the higher display card of usefulness is accompanied by the process chip with more triode numbers usually, and how much the triode number just is one of key factor that influences the thermal power that is produced when chip operates.The display card that usefulness is high more, the triode of its process chip the more, the thermal power that is produced is higher, inevitably, the temperature of chip is high especially during display card operation.

Therefore, the display card of middle high-order assembles the heating radiator of an adhesive type mostly on its process chip when dispatching from the factory, and also available on the market heating radiator of the same type.

Existing adhesive type heating radiator is a metal base plate, is formed with several pieces fins at plate top surface, in the base plate bottom surface one adhesive-layer is set then.When using, the adhesive-layer of adhesive type heating radiator is adjacent on the end face of display card process chip, whereby, the heat on the chip can be delivered to the fin place rapidly, and reach the chip cool effect by the heat interchange of fin and air; The efficient of this kind heating radiator and air heat exchange depends on the surface area size of fin, so generally when making this heating radiator, the fin height all increases as much as possible.

Yet display card usually and other interface cards such as networking card, adlib, Redundant Array Of Independent Disks (RAID) card or the like together be arranged side by side on motherboard, and the fin of adhesive type heating radiator is just between the gap of display card and adjacent interface card, and blocked the cross-ventilation in the crack during this time.Because the cross-ventilation in this gap is blocked, the fin ambient air is detained the original place and constantly is heated and heats, and reduces the rate of heat exchange with fin gradually, and therefore the effect of heating radiator has a greatly reduced quality.

Summary of the invention

Fundamental purpose of the present utility model provides a kind of display card heating radiator, and it utilizes a wind scooper and an aerofoil fan and effectively the high hot type on the display card process chip is dissipated to outside the computer housing, to guarantee the good heat exchange rate of heating radiator and ambient air.

The utility model mainly has:

One heat sink assembly has a heat sink, is provided with a radiating fin group in heat sink, and this fins group includes several pieces interval fins apart, is formed with a passage between each adjacent fin respectively;

One guiding subassembly, the wind scooper that is connected in the heat sink assembly and has a hollow, this wind scooper is connected in the rear side of heat sink, be formed with one respectively at the front/rear end place of this wind scooper near the open front of heat sink and with respect to the after-opening of open front, be provided with an aerofoil fan in wind scooper, the axis of rotation of this aerofoil fan vertically is hubbed between the top, bottom of wind scooper.

By above-mentioned technological means, when using during display card heating radiator of the present utility model, the heat sink bottom is arranged at display card chip top, aerofoil fan rotate and hot-air in the bootable wind scooper respectively by the passage/wind scooper inside between fin, and the rear end of elsewhere/wind scooper is discharged to outside the computer housing in heat sink assembly front end is discharged to computer brain cabinet, so, the heating radiator ambient air is kept good circulation, and fin is then sustainable to carry out good heat exchange with peripheral lower temperature air.

The accompanying drawing summary

Fig. 1 is a stereo appearance figure of the present utility model.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 is the three-dimensional exploded view of a utility model and a display card.

Fig. 4 is installed in the stereo appearance figure of display card for the utility model.

Fig. 5 is the side sectional view of the utility model and display card.

Embodiment

Please refer to Fig. 2 and Fig. 3, the utility model display card heating radiator contains a heat sink assembly 10, one guiding subassemblies 20 and an installing plate 30; Wherein:

Please refer to Fig. 1 and Fig. 2, this heat sink assembly 10 has a heat sink 11, this heat sink 11 is with metal manufacturings such as aluminium or copper, be formed with a side plate 111 perpendicular to heat sink 11 respectively in these heat sink 11 both sides, be formed with several closed conduit that takes the shape of the letter U 113 on these heat sink 11 end faces, be sealed with a fluent meterial in each closed conduit 113, this material can be the volatile matter that water or alcohol etc. easily produce liquid/gas conversion, these heat sink 11 end faces are provided with a fins group 12, this fins group 12 has the metal manufacturing of good thermal conductivity rate with copper etc., consider the cost of manufacturing, this fins group 12 also can aluminium etc. heat conduction efficiency a little less than copper but still can keep the metal manufacturing of radiator integral heat dissipation, this fins group 12 has several pieces interval fins apart, be formed with a passage along heat sink 11 front and back side directions between each fin respectively, be provided with a cover plate 13 that is positioned at above the fins group 12 at biside plate 111 apical margins of this heat sink 11, this cover plate 13 is with metal manufacturings such as aluminium or copper; One copper contact chip 15 also can be set on these heat sink 11 bottom surfaces, and this contact chip 15 can be for being closely attached on the process chip to strengthen the heat conduction efficiency between process chip and the heat sink 11.

The wind scooper 21 that this guiding subassembly 20 is connected in heat sink assembly 10 rear ends and has a hollow, be formed with one respectively in these wind scooper 21 front and back ends near the open front 211 of heat sink 11 and with respect to the after-opening 213 of open front 211, locate to be formed with a depressed part 215 at wind scooper 21 near the bottom of open front 211, wherein the distance between depressed part 215 and wind scooper 21 tops is greater than the distance between wind scooper 21 nonpitting bottoms and the top, depressed part 215 in wind scooper 21 is provided with an aerofoil fan 22, and the axis of rotation of this aerofoil fan 22 vertically is hubbed at the top of wind scooper 21, the bottom.

This installing plate 30 as shown in Figure 3, is used binding member such as the solid or trip of spiral shell and is combined with heat sink 11, and be incorporated into separably heat sink 11 the bottom and with this bottom segment distance of being separated by.

Please refer to Fig. 2, Fig. 3 and Fig. 4, the utility model display card heating radiator combines with a display card 50, wherein heat sink assembly 10 is arranged on a process chip 52 one sides of a set circuit board 51 on the display card 50 with guiding subassembly 20, this heat sink 11 with self the bottom or copper contact chip 15 fit tightly on this process chip 52, the after-opening 213 of wind scooper 21 is arranged on the installation baffle plate 531 of circuit board 51 rear sides towards one simultaneously, installing plate 30 is arranged at circuit board 51 bottoms, and wear installing plate 30 in regular turn with several bolts or trip, circuit board 51 and heat sink 11 and spiral shell are consolidated or are fastened on the heat sink 11, make heat sink 10 assemblies and guiding subassembly 20 be fixed on the installing plate 11 and directly be not fixed on circuit board 51, when avoiding directly heating radiator being fixed on single of circuit board 51, heating radiator is directly oppressed circuit board 51 and is caused circuit board 51 distortion even damage;

When the utility model display card heating radiator energising running, aerofoil fan 22 rotates with respectively to fins group 12 and wind scooper 21 after-openings 213 place's blow flow, the air of wind scooper 213 inside respectively through passage between fin and wind scooper 21 after-openings 213 and respectively row loose in the environment of the inner elsewhere of computer housing and outside; The utility model display card heating radiator also can cooperate the installation baffle plate 53 once particular design, this installation baffle plate 53 is highly for generally installing the twice of baffle plate on the market, when so this installation baffle plate 531 is installed on the computer housing, take the installing port of two interface cards, and this place, installation baffle plate 531 nearly top is provided with ordered series of numbers air hole 531, can make the hot-air that blows out from wind scooper 21 after-opening places see through in the diffusing environment outside computer housing of air hole 531 rows.

By above-mentioned technological means, when using during display card heating radiator of the present utility model, heat sink 11 bottoms are arranged at display card chip top, aerofoil fan 22 rotate and hot-airs in the bootable wind scooper 21 respectively by passage and wind scooper 21 inside between fin, the rear end of elsewhere and wind scooper 21 is discharged to outside the computer housing in the computer housing and be discharged to from heat sink assembly 10 front ends, so, the heating radiator ambient air is kept good circulation, and fin is then sustainable to carry out good heat exchange with peripheral lower temperature air.

Claims

1. a display card heating radiator is characterized in that mainly having

One heat sink assembly has a heat sink, and this heat sink is provided with a radiating fin group, and this fins group includes several pieces interval fins apart, is formed with a passage between each adjacent fin respectively;

One guiding subassembly, the wind scooper that is connected in the heat sink assembly and has a hollow, this wind scooper is connected in the rear side of heat sink, be formed with one respectively at place, the front and back end of this wind scooper near the open front of heat sink and with respect to the after-opening of open front, be provided with an aerofoil fan in wind scooper, the axis of rotation of this aerofoil fan vertically is hubbed between the top, bottom of wind scooper.

2. display card heating radiator as claimed in claim 1 is characterized in that: this heat sink assembly has a heat sink, is formed with the closed conduit that several takes the shape of the letter U on the heat sink end face, is sealed with a fluent meterial in each closed conduit.

3. display card heating radiator as claimed in claim 2 is characterized in that: this heat sink bottom surface is provided with a copper contact chip.

4. display card heating radiator as claimed in claim 3, it is characterized in that: locate to be formed with a depressed part for the aerofoil fan setting at wind scooper near the bottom of open front place, wherein the distance between depressed part and the wind scooper top is greater than the distance between nonpitting bottom of wind scooper and the top.

5. as each described display card heating radiator in the claim 1 to 4, it is characterized in that: the bottom surface that installing plate is incorporated into heat sink separably to use binding member and wear the combination of installing plate and heat sink, and with this bottom segment distance of being separated by.

6. as each described display card heating radiator in the claim 1 to 4, it is characterized in that: heat sink is with the aluminium manufacturing, and fins group is with copper production.