CN2567647Y

CN2567647Y - Heat sink with specific air exhausting direction

Info

Publication number: CN2567647Y
Application number: CN 02251803
Authority: CN
Inventors: 赖志明
Original assignee: Giga Byte Technology Co Ltd
Current assignee: Giga Byte Technology Co Ltd
Priority date: 2002-08-29
Filing date: 2002-08-29
Publication date: 2003-08-20
Anticipated expiration: 2012-08-29

Abstract

The utility model relates to a heat sink suitable for system machine boards of system boards, VGA cards, etc. The utility model comprises a radiator arranged on a system processor, and a radiator fan which is fixed at a concave part of the central part of the radiator by using a fixing bracket, wherein, the radiator slightly forms an ellipse shape, and the peripheries are provided with a plurality of radiating fins; the area of radiating fins with respect to need to flow across a large air quantity is bigger, and the area of radiating fins with respect to not need to flow across the large air quantity is smaller. Therefore, not only can the high heat generated when the system processor runs be rapidly discharged, but also air quantities can be more concentratedly output in a specific direction when the high heat is discharged, which enables the heat generated by an element arranged in the specific direction to be simultaneously discharged, and heat radiating efficiency of a system whole body can be effectively improved.

Description

The heat abstractor of the specific air draft direction of tool

Technical field

The utility model relates to a kind of heat abstractor, refers to a kind of heat abstractor of being located at the system processor top especially.

Background technology

Heat abstractor of the present utility model, be that general reference is applicable to such as computer main frame panel, heat abstractor on system's machine plates such as VGA card, these heat abstractors normally can utilize fastener or heat-conducting glue by one and be fixed in heating radiator on the system processor, and the radiator fan of being located on this heating radiator constitutes, wherein, heating radiator generally has a plurality of radiating fins that utilize aluminium to squeeze type or cutting forming, the radiating fin that utilizes aluminium or copper foil to strike out continuous square wave shape is also arranged, setting as for radiator fan, be generally and be located at the heating radiator top, the heavy heating radiator central depression of painstakingly reserving that is located at is also arranged in addition, be no lack of though those heat abstractors respectively have its characteristic to have and patent, but the general lifting of only considering the radiating efficiency of system processor itself in its design, heating problem as for other peripheral cell on system's machine plate does not then give attention, in other words, the solution of system's machine plate heating problem is no doubt most important with system processor, but the element that is easy to generate heat is not limited in system processor, as when the disposal system heat dissipation problem, element beyond the system processor can be taken into account in the lump, the lifting of globality will be arranged and make the running of system more lasting for the radiating efficiency of system, stable.

As in the previous paragraph, with general VGA card 1 shown in Figure 1 is example, be installed with heat abstractor 10 on its system processor, and above this heat abstractor 10 and right positions, being provided with several can be for the storer (SDRAM of data access, DDR or SDRAM) 2, leftward position at heat abstractor 10 then is provided with the power crystal that constitutes power circuit 3 in addition, choke coil, elements such as capacitor, these elements also have the generation of heat when moving in system, though the heat that it produced is serious like that not as system processor to the influence of system, but still can not be ignored and have to be solved, yet aforesaid heat abstractor 10 but can't effectively solve the heating problem of the element beyond these system processors for fear of following factor:

Also be, this heat abstractor 10 is the heat abstractors on a kind of VGA of being usually used in card 1, its radiating fin 111 is circular arrangement and in a radiator fan 12 is surrounded on, and its each radiating fin 111 suitable angle that all tilts, so as to the air quantity of strengthening discharging by each radiating fin 111, to promote its radiating efficiency, yet, though this heat abstractor 10 can provide certain radiating effect in system processor, but for fear of its radiating fin 111 is circular arrangement, and each radiating fin 111 all is identical size, make its air draft moving-wire be shape (joining shown in Figure 1) towards even scattering all around, in other words, the flow through air quantity in the space beyond the system processor is consistent.VGA card 1 leftward position is provided with power circuit 3 and right positions is provided with storer 2, this two positions is the more part of heater element, therefore, the air quantity at this place helps the heat radiation of these elements than senior general if flow through, as for other position of VGA card then because of no heating problem or the less too big air quantity of flowing through that do not need of thermal value, under this considers, above-mentioned heat abstractor 10 is evenly to discharge because of its air quantity obviously, make the big part of air requirement that the shortcoming of deficiency in draught obviously be arranged, do not need big air quantity part then can waste wind energy.

In addition, the radiator fan 12 of above-mentioned heat abstractor 10 is when being fixedly arranged on the central dimple of heating radiator 11, its fan shaft portion (containing bearing) is directly to be posted by heating radiator 11, therefore, heat will be sent and directly will be passed to this fan axle through heating radiator 11 and locate by system processor, make the lubricating oil at fan axle place easily evaporate by heat, after a period of time, lubricating oil will evaporate totally, cause the wearing and tearing of fan axle at last at last and produce noise, even the stuck phenomenon of fan takes place, this problem long-term existence has to be solved in known heat abstractor.

Moreover, see also Fig. 2, for each radiating fin 111 of making above-mentioned heating radiator 11 towards the equidirectional inclination that is equal angular, so as to promoting ventilation efficiency, this heating radiator 11 need be established a central seat hole 112, anchor clamps for processing machine stretch into and fixing using, so as to the radiating fin 111 that cuts required gradient, therefore, it needs to make in addition one and can supply spiral shell establish the pedestal 13 of radiator fan 12, and pedestal 13 is sticked in the central seat hole 112, therefore, be not that this makes the pedestal 13 on the system processor can't soon heat be reached radiating fin 111 for the driving fit relation has the thermal resistance slit between radiating fin 111 and the pedestal 13, and then having influenced the radiating efficiency of entire heat dissipation device, this is also for needing the problem of improvement badly.

The utility model content

In view of this, the main technical problems to be solved in the utility model is to release a kind of not only effective disposal system processor heat dissipation problem, and also has specific air draft direction to concentrate the heat abstractor of discharge quantity of fan to the part that needs to dispel the heat.

In order to achieve the above object, the utility model provides the heat abstractor of the specific air draft direction of a kind of tool, comprise and fit in the heating radiator on the system processor and utilize a fixed mount to be fixed in the radiator fan of this heating radiator central depression, its characteristics are: this heating radiator is ovalize slightly, its periphery promptly outwards is convexly equipped with a radiating fin every a suitable distance, and the area of the radiating fin on the different air supply directions of this heating radiator varies in size.

In the such scheme, be characterized in that the radiating fin area of this heating radiator on the direction of more heater element air-supply is bigger, and the radiating fin area on the direction of less heater element air-supply is less, be that its radiating fin with respect to the big air quantity part of need flowing through is that area is bigger, and the radiating fin area of the big air quantity part of need not flowing through is less, so as to forcing wind, do not have required airflow and flow through part then with low air quantity output toward needing big air quantity part to concentrate output.

In the such scheme, the area that is characterized in the radiating fin of this heating radiator is that the longitudinal end along this heating radiator elliptical profile reduces gradually to the minor axis end, and the structure of the radiating fin of these major axis both sides is with respect to this major axis mirror image symmetry.

In the such scheme, be characterized in the structure that this heating radiator is one of the forming.

In the such scheme, be characterized in that this fixed mount is a plastic material, it comprises one at least for radiator fan fixing central siphon and several the protruding pin that stretched out by this central siphon bottom, but these several protruding pin spiral shells are located at the central depression of this heating radiator and this fixed mount is fixed on this heating radiator.

In the such scheme, the central siphon that is characterized in this fixed mount is a hollow tubular, and its internal fixation has a bearing, and the fan axle of this radiator fan is hubbed in this bearing, and keeps a thermal resistance gap between this bearing and this heating radiator.

In the such scheme, be characterized in having at least a protruding pin to be provided with draw-in groove in the protruding pin of this fixed mount, can fix the power lead of this radiator fan.

So, by the utility model, the high heat that is produced in the time of not only system processor can being operated is discharged rapidly, and when discharging, can export by specific direction than the concentrated area owing to air quantity, make that the heat that element produced be positioned at this specific direction will be discharged in the lump, according to and be able to effective elevator system integral heat sink efficient.

In addition, because the utility model has a hollow axle tube especially for the central authorities of the fixed mount that radiator fan is settled, fan axle for radiator fan sets firmly in it, and keep an enough effective thermal resistance gap between the fixed position of fan axle and the heating radiator, therefore, the unwarmed influence of lubricating oil at fan axle place and evaporating can make the running usefulness of radiator fan be able to long term maintenance, is the another technical matters that solves of the utility model and the another technique effect of obtaining.

In addition, because heating radiator of the present utility model is entirely integrally formed structure, therefore, heat energy from system processor reaches radiating fin on every side fast, and then the radiating efficiency of effective elevator system processor, this is the technical matters again that solves of the utility model and a technique effect again of obtaining.

Description of drawings

Fig. 1 is the floor map of general VGA card.

Fig. 2 is a kind of three-dimensional exploded view of heating radiator part of known heat abstractor.

Fig. 3 is the three-dimensional exploded view of the utility model preferred embodiment.

Fig. 4 is the stereo appearance figure of the utility model preferred embodiment.

Fig. 5 is the synoptic diagram that the utility model preferred embodiment is used in the VGA card.

Fig. 6 is the part sectional drawing of the utility model preferred embodiment.

Embodiment

For further specifying particular content of the present utility model and beneficial effect; now lift a preferred embodiment and cooperate graphic and be described in detail as follows; but disclosed embodiment only is one of them specific embodiments of the utility model, is not in order to the utility model scope of patent protection is imposed any restrictions.

See also Fig. 3 to Fig. 6, disclosed a kind of VGA of being applicable to card 1, and the heat abstractor 20 of the specific air draft direction of tool, this heat abstractor 20 comprises the heating radiator of being located on the system processor 21, and one utilize plastics fixed mount 22 (see figure 6)s and be fixed in the radiator fan 23 of heating radiator 21 central depression, this heating radiator 21 reaches to forcing wind to concentrate output by both sides because of the restriction that is subjected to VGA card 1 free space, and roughly be oblong, so that obtain the air draft moving-wire of maximum area of dissipation and the best in limited space, in other words, its oblong minor axis etc. is longer than the heating radiator 11 of above-mentioned known heat abstractor 10, its major axis is then greater than the heating radiator 11 of above-mentioned known heat abstractor 10, add the structure that this heating radiator 21 is one of the forming, therefore the utility model obviously will be better than above-mentioned known heat abstractor 10 because of it effectively utilizes the free space of VGA card 1 to the radiating effect of system processor;

Further it, on this integrally formed heating radiator 21, also have by the radiating fin 211 that outwards protrudes out and be the riser shape on every side, and this radiating fin 211 is in bigger near major axis place area, and it is less near minor axis place area, from another angle, VGA card 1 is exported part in the both sides of heating radiator 21 major axis for needing big air quantity, to take away the heat that element was produced that is positioned at this place when radiator fan 23 air drafts in the lump, therefore, this heating radiator 21 is than large tracts of land with respect to the radiating fin 211 of the big air quantity output of need part, it then is than small size with respect to the radiating fin 211 that only needs little air quantity output part, further it, by oval-shaped structure and larger area radiating fin 211 thereof, export by larger area radiating fin 211 places to force more air quantity, in the present embodiment, VGA card 1 relative heating radiator 21 major axis two ends parts, with the bigger air quantity of flowing through effectively to distribute the heat that element was produced (joining shown in Figure 5) that is positioned at this place;

As in the previous paragraph, in order to make the unlikely disorder of output moving-wire of wind, the area of the radiating fin 211 in the present embodiment around this heating radiator 21 is along its elliptical profile and by longitudinal end to the minor axis end decrescence, and the shape that each radiating fin 211 of its major axis upper and lower half is lined up is corresponding mirror;

Moreover, as Fig. 3 and shown in Figure 6, described fixed mount 22 is the central siphons 221 that supply radiator fan 23 to fix by, and several the protruding pin 222 that stretched out by these central siphon 221 bottoms are constituted, wherein a protruding pin 222 ' is provided with draw-in groove A with the fixing power lead of radiator fan 23,222 on all the other protruding pin are in order to be located at whole fixed mount 22 spiral shells the central depression of heating radiator 21, as for 221 of described central siphons is hollow tubular, its internal fixation one bearing 231 is with the fan axle 232 of the radiator fan 23 that is pivoted, and also keep a thermal resistance gap between these bearing 231 fixing backs and the heating radiator 21, so as to making this fan axle not be subject to influence from the heat of heating radiator 11, and then make the lubricating oil at fan axle place be not easy to evaporation, with the smooth and easy running of long term maintenance radiator fan 23.

In sum, the utility model can be borrowed its special design really and reach above-mentioned purpose of design.

Claims

1, the heat abstractor of the specific air draft direction of a kind of tool comprises fitting in the heating radiator on the system processor and utilizing a fixed mount to be fixed in the radiator fan of this heating radiator central depression, it is characterized in that:

This heating radiator is ovalize slightly, and its periphery promptly outwards is convexly equipped with a radiating fin every a suitable distance, and the area of the radiating fin on the different air supply directions of this heating radiator varies in size.

2, the heat abstractor of the specific air draft direction of tool as claimed in claim 1 it is characterized in that the radiating fin area of this heating radiator on the direction of more heater element air-supply is bigger, and the radiating fin area on the direction of less heater element air-supply is less.

3, the heat abstractor of the specific air draft direction of tool as claimed in claim 1, the area that it is characterized in that the radiating fin of this heating radiator is that the longitudinal end along this heating radiator elliptical profile reduces gradually to the minor axis end, and the structure of the radiating fin of these major axis both sides is with respect to this major axis mirror image symmetry.

4, as the heat abstractor of claim 1, the specific air draft direction of 2 or 3 described tools, it is characterized in that the structure that this heating radiator is one of the forming.

5, the heat abstractor of the specific air draft direction of tool as claimed in claim 1, it is characterized in that this fixed mount is a plastic material, it comprises one at least for radiator fan fixing central siphon and several the protruding pin that stretched out by this central siphon bottom, but these several protruding pin spiral shells are located at the central depression of this heating radiator and this fixed mount is fixed on this heating radiator.

6, the heat abstractor of the specific air draft direction of tool as claimed in claim 5, the central siphon that it is characterized in that this fixed mount is a hollow tubular, its internal fixation has a bearing, and the fan axle of this radiator fan is hubbed in this bearing, and keeps a thermal resistance gap between this bearing and this heating radiator.

7, the heat abstractor of the specific air draft direction of tool as claimed in claim 5 is characterized in that having at least a protruding pin to be provided with draw-in groove in the protruding pin of this fixed mount, can fix the power lead of this radiator fan.