CN201123213Y

CN201123213Y - Heat radiating unit

Info

Publication number: CN201123213Y
Application number: CNU2007203102483U
Authority: CN
Inventors: 杨修维
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2007-12-07
Filing date: 2007-12-07
Publication date: 2008-09-24
Anticipated expiration: 2017-12-07

Abstract

The utility model relates to a heat radiation unit, wherein, the heat radiation unit adopts a heat-conducting plate, the heat-conducting plate comprises a plane contracting part used for directly contacting with a heat source to transmit heat energy. An integrative supporting part is formed by outwards extending at least one side of the contacting part, to ensure that the heat resource conducted by contacting is conducted to the far end through the extending supporting part, and thereby, the better heat radiation effect can be achieved.

Description

Heat-sink unit

Technical field

This creation is about a kind of heat-sink unit, particularly about the application of the heat-conducting plate of the high heat conduction efficiency of a kind of tool.

Background technology

In recent years along with the fast development of information, communication and opto-electronics, electronic product moves towards high-orderization and lightening gradually, under the demand of high-speed, high-frequency and miniaturization, the heat generation density of electronic component is more and more higher, so radiating efficiency has become the key factor of decision electronic product stability; Because heat pipe or conducting strip have high efficiency thermal conduction characteristic, have been one of heat conducting element of extensive use in the electronic product.Heat pipe or conducting strip mainly have the enclosed vacuum copper pipe or the copper sheet of capillary layer by wall sintering within it, utilize the working fluid in the pipe to absorb thermal source (as CUP etc.) and gasify at evaporation ends, the steam of heating end condenses into liquid and is subjected to the capillary force effect of capillary layer to be back to evaporation ends at condensation end after heat radiation (for example with radiating fin and fan etc.), constitute sealing and circulating.

See also shown in Figure 1, it is the three-dimensional combination figure of prior art heat radiation module, find out that by knowing among the figure this heat radiation module 1 is made of a radiating fin group 11, heat pipe 12, this radiating fin 11 offers at least one hole 112, and these radiating fin 11 bottoms are to be combined with pedestal 111 can contact with pyrotoxin 13; Described heat pipe 12 is can wear the hole 112 of this radiating fin 11 and be incorporated on this pedestal 111; When thermal source 13 by with after this pedestal 111 contacts, thermal source 13 is conducted to heat pipe 12, this heat pipe 12 reboots thermal source to radiating fin 11, to reach radiating effect.

Yet this existing heat radiation module 1, after must earlier heat pipe 12 and radiating fin 11 being made up, again heat pipe 12 is combined with pedestal 111, just can make this pedestal 111 directly contact with thermal source, and the thermal source band caused on the heat pipe 12, and being taken to far-end, thermal source dispels the heat.Therefore existing heat pipe 12 can't directly contact with thermal source, in the transmission of thermal source, must see through pedestal, therefore cause heat pipe to rely on pedestal and combine with pedestal, but when being bonded to each other between the two, though for fitting tightly or be coated with heat-conducting cream, but still the phenomenon of gapped generation, and cause the generation of thermal chocking, cause heat conduction efficiency greatly to descend.

And another kind of existing heat radiation module is to dispel the heat with heat-conducting plate, this heat-conducting plate mostly is applied in the device of the less needs heat radiation in notebook computer or space, because its structure of heat-conducting plate is repeatedly to be organized mutually by two metal sheets to form, and can be provided with runner in it reaches or capillary structure, use and absorb thermal source (as CUP etc.) for the interior working fluid of establishing at evaporation ends and gasify, the steam of heating end condenses into liquid and is subjected to the capillary force effect of capillary layer to be back to evaporation ends at condensation end after heat radiation (for example with radiating fin and fan etc.), but the congenital restriction of limited its architectural characteristic of conducting strip, make its evaporation ends too short, cause radiating efficiency low excessively to the path of condensation end.

So following shortcoming is arranged in the above prior art:

Heat pipe and pedestal are bonded to each other and easily the space are arranged and produce thermal chocking;

The excessive usage space that excessively takies of volume;

Heat dissipation is poor.

The utility model content

The utility model provides a kind of heat-sink unit, is bonded to each other and easily the space is arranged and produce thermal chocking, the excessive usage space that excessively takies of volume, problems such as heat dissipation difference to solve in the prior art heat pipe and pedestal.

The main purpose of this creation provides and a kind ofly can directly contact and conduct heat energy with pyrotoxin, and by the outward extending branch of its body, thermal source is passed to the heat-sink unit that far-end dispels the heat.

The secondary objective of this creation provides a kind of heat-sink unit of saving the space.

Another secondary objective of this creation provides a kind of simple in structure and cost-effective heat-sink unit.

In order to achieve the above object, this creation provides a kind of heat-sink unit, this heat-sink unit is a heat-conducting plate, this heat-conducting plate definition has a plane, be configured to contact site, this contact site can directly be used with pyrotoxin and contact with conduction heat sources, and stretching at least one epitaxial lateral overgrowth of contact site has integrated branch, can directly contact the thermal source that conducted of back by contact site and pyrotoxin, the branch that sees through this extension conducts to far-end with thermal source and reaches the effect of heat radiation.

Compared with prior art, the utlity model has following advantage:

1, heat-conducting plate can directly contact with pyrotoxin by contact site, and direct conduction heat sources extremely outward extending branch and has excellent radiating effect so that thermal source is reached far-end.

2, because of directly contacting with pyrotoxin so the situation that no thermal chocking produces.

3, the space of saving simple in structure.

4, no complex mechanism is so can save man-hour and cost.

Description of drawings

Shown in Figure 1 is the three-dimensional combination figure of prior art heat radiation module;

Shown in Figure 2 is the three-dimensional exploded view of this creation preferred embodiment;

Shown in Figure 3 is the three-dimensional combination figure of this creation preferred embodiment;

Shown in Figure 4 is this three-dimensional exploded view of creating another preferred embodiment;

Shown in Figure 5 is this three-dimensional combination figure of creating another preferred embodiment;

Shown in Figure 6 is this three-dimensional combination figure of creating another preferred embodiment.

The main element symbol description is as follows:

1 heat radiation module, 11 radiating fins

111 bottoms, 12 heat pipes

13 holes, 2 heat-conducting plates

21 contact sites, 22 branches

3 pyrotoxins, 4 radiating fins

The fan of 5 tool radiating effects

Embodiment

See also Fig. 2 and shown in Figure 3, the solid that is this creation preferred embodiment is decomposed and constitutional diagram, find out by knowing among the figure, the heat-sink unit of this creation is the plate body 2 of a tool heat conduction, (it is identical with existing heat pipe or heat-conducting plate or equalizing plate structure that this structure is formed to be provided with working fluid and capillary structure in this plate body, at this then not heavily superfluous), this heat-conducting plate 2 has defined a plane, this plane can be set as the contact site 21 that directly contacts with pyrotoxin 3, and be outward extended with integrated branch 22 in contact site 21 at least one ends, can directly contact by this contact site 21 with pyrotoxin 3, and after seeing through contact site 21 thermal source being directly conducted to heat-conducting plate 2 bodies, be passed to outward extending branch 22 again, thermal source is conducted to the effect that far-end reaches heat radiation; So the design contact site 21 by this creation and extend the design of branch 22 can improve existing heat radiation module and need transmit thermal source again to thermal resistance problem that heat pipe produced by pedestal.

See also Fig. 4 and shown in Figure 5, the solid that is another preferred embodiment of this creation is decomposed and constitutional diagram, find out that by knowing among the figure this creation can be equipped with radiating fin 4 in branch 22, make branch 22 faster heat energy be loose and overflow to extraneous by radiating fin 4.

See also shown in Figure 6, it is the three-dimensional combination figure of another preferred embodiment of this creation, find out by knowing among the figure, on the set radiating fin 4 of this branch 22, set up the fan 5 of a tool radiating effect again, when the contact site 21 by heat-conducting plate 2 contacted with pyrotoxin 3, thermal source was directly conducted to the branch 22 of heat-conducting plate 2 by contact site 21, conduct to radiating fin 4 again by branch 22 after, 5 pairs of these radiating fins 4 of fan by tool forced heat radiation effect dispel the heat, and can reach better radiating effect.

More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection range of the present utility model.

Claims

1, a kind of heat-sink unit is the plate body of tool heat conduction, it is characterized in that:

Definition has a plane to be made as contact site on this plate body, and stretches at least one epitaxial lateral overgrowth of this contact site and to be provided with at least one branch; Make the contact site of plate body directly contact, and thermal source can be conducted to far-end, reach the effect of heat radiation with this by this branch with pyrotoxin.

2, heat-sink unit according to claim 1 is characterized in that this branch can combine with radiating fin.

As heat-sink unit as described in the claim 2, it is characterized in that 3, this radiating fin can be set up the effect that a fan with radiating effect increases heat radiation.