CN201571286U - Loop type heat dissipation device - Google Patents
Loop type heat dissipation device Download PDFInfo
- Publication number
- CN201571286U CN201571286U CN2009201734628U CN200920173462U CN201571286U CN 201571286 U CN201571286 U CN 201571286U CN 2009201734628 U CN2009201734628 U CN 2009201734628U CN 200920173462 U CN200920173462 U CN 200920173462U CN 201571286 U CN201571286 U CN 201571286U
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- groove
- heat abstractor
- heat
- radiating fin
- metal tube
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Abstract
The utility model discloses a loop type heat dissipation device. The device comprises a radiating fin group and a pair of heat conducting components, wherein the radiating fin group comprises a plurality of radiating fins connected with each other; a plurality of first grooves and a plurality of second grooves are respectively formed at the corresponding end surfaces of each radiating fins; each heat conducting component comprises a metal box and a metal pipe, wherein the two ends of the metal pipe are communicated with the metal box, so as to form a vacuum cavity in the metal pipe; a capillary tissue is arranged in the vacuum cavity; working fluid is filled in the vacuum cavity; one metal pipe is embed fixedly in the first grooves; and the other metal pipe is embed fixedly in the second grooves. The heat dissipation device can make steam flow smoothly in a cycling way, and dissipate heat corresponding to a plurality of heat sources, thereby improving heat conducting efficiency.
Description
Technical field
The utility model relates to a kind of heat abstractor, relates in particular to a kind of loop-type heat abstractor with phase change circulation circuit.
Background technology
Fast development along with scientific and technological industry, the data processing speed of computer installation is also more and more faster, the electronic building brick of computer installation inside, as, CPU, IC assembly, power crystal and power supply unit etc. are when carrying out running, because energising back internal resistance can produce heat, cause assembly temperature to rise, and it is microminiaturized that the volume of electronic building brick is tending towards, closeness increases, and the heat that unit are is produced also relatively increases, if the heat that in time electronic building brick is produced is not discharged, high temperature can cause execution speed to reduce, even causes computer hardware to damage.
The excessive heat energy of accumulation causes temperature to rise when operating in order to suppress electronic building brick, must use heat abstractor to dispel the heat, traditional heat abstractor comprises a heat-conducting seat and a plurality of radiating fin of metal material, heat-conducting seat amplexiforms in heat generating component with the conduction heat that heat generating component was produced, the heat-conducting seat other end is located in each radiating fin space with arranging, and be formed with gas channel between each radiating fin, heat-conducting seat conducts to each radiating fin with heat by heat generating component, so that gas stream is taken away heat through gas channel, usually a side of heat abstractor is provided with the radiator fan to the heat abstractor blow flow, to promote heat dissipation.
Recently more develop for adding a plurality of heat pipes (heat pipe) that are connected to each radiating fin by heat-conducting seat on traditional heat abstractor, heat pipe is made by highly purified oxygen-free copper pipe and capillary structure, an amount of pure water or the acetone of inner filling is working fluid, working fluid is after the heat-conducting seat end is heated vaporization, flow to each radiating fin end, seeing through each radiating fin heat radiation makes working fluid be condensed into liquid, mat capillary force or gravity reflux are to the heat-conducting seat end again, heat abstractor comes quick conductive by the phase change of working fluid, be beneficial to a large amount of heat energy from electronic building brick via heat-conducting seat, heat pipe and conduct to each radiating fin is to increase the heat dissipation of heat abstractor.
A kind of radiator is arranged in addition, as temperature-uniforming plate (Vapor Chamber), be the plate body shape, can replace the effect of heat-conducting seat and increase heat dissipation, temperature-uniforming plate is amplexiformed surface in electric heat generating component, see through the inner vacuum environment, provide to inject and become steam after its inner working fluid is met heat, meet because of working fluid again and revert back to the liquid state back circulation that can reflux after cold and re-use,, have high hot biography ability, high thermoconductivity with the heat transferred of carrying out of phase change.
Heat pipe or temperature-uniforming plate all are to utilize the phase change of working fluid to carry out heat transferred, steam flows in the passage of hollow, liquid refluxes at the capillary structure of inwall, yet, because heat pipe or temperature-uniforming plate are closure casing, if steam can't total condensation become liquid when flowing to cold junction by the hot junction, and the hot junction continues to have heated liquid to change steam into and flows to cold junction, the steam of cold junction can be piled up and making mobile having some setbacks at this moment, cause heat conduction efficiency to reduce, in addition, when a plurality of thermals source are done heat radiation, usually need on each thermal source, heat abstractor be installed, take up space very much.
The utility model content
In view of this, the purpose of this utility model mainly is to provide a kind of loop-type heat abstractor, by the runner setting of loop-type, makes that steam is smooth and easy circularly to flow, and corresponding many thermals source do to disperse, and can strengthen the heat conduction efficiency of this device.
For achieving the above object, this novel technical scheme is as follows:
A kind of loop-type heat abstractor comprises:
One radiating fin group mainly is formed by mutually assembling by a plurality of radiating fins, offers first groove and second groove respectively in the corresponding end face of described radiating fin; And a pair of heat-conductive assembly, each heat-conductive assembly comprises a can and a metal tube, the two ends of described metal tube are communicated with the corresponding metal box respectively and form a vacuum chamber in inside, be laid with a capillary structure in the described vacuum chamber and be filled with working fluid, wherein, one of described metal tube is striden and is located at described radiating fin and build-in in described first groove, and another metal tube is striden and established described radiating fin and build-in in described second groove.
Wherein, described first groove and described second groove are the dislocation configuration.
Described can further comprises a supporting construction that is located in the described vacuum chamber.
It is wavy that described supporting construction is continuous bending.
Described heat abstractor further comprises a pressing plate, and this pressing plate covers described radiating fin and the wherein arbitrary metal tube of thermo-contact.
Described pressing plate is offered and is formed a groove, and one of described metal tube build-in is in described first groove and groove.
Described heat abstractor further comprises a pressing plate, and described pressing plate covers described radiating fin and another metal tube of thermo-contact.
Described pressing plate is offered and is formed a groove, and described another metal tube build-in is in described second groove and groove.
Described capillary structure is the sintered type metal dust.
Loop-type heat abstractor described in the utility model has following advantage:
In heat abstractor of the present utility model, steam circulates in the runner of loop-type, smooth and easy and do not pile up, thereby can increase heat conduction efficiency, on radiating fin group two sides heat-conductive assembly is set again, can reduce the whole heat generating component that takes up room and distribute diverse location, heat-conductive assembly is assembled with groove build-in mode and radiating fin group in addition, and is very convenient quick.
Description of drawings
Fig. 1 is a three-dimensional exploded view of the present utility model;
Fig. 2 is a three-dimensional combination figure of the present utility model;
Fig. 3 is another visual angle figure of Fig. 2;
Fig. 4 is the partly cutaway view of combination of components of the utility model;
Fig. 5 is an illustrative view of the present utility model;
Fig. 6 is the partly illustrative view of assembly of Fig. 5;
Fig. 7 is that of the present utility model another implemented illustration;
Fig. 8 is an another enforcement illustration of the present utility model.
[primary clustering symbol description]
Radiating fin group 10 radiating fins 11
First groove, 12 second grooves 13
Heat-conductive assembly 20 cans 21
Supporting construction 211 metal tubes 22
Working fluid 25
Embodiment
Below in conjunction with accompanying drawing and this novel embodiment device of the present utility model is described in further detail.
The utility model relates to a kind of loop-type heat abstractor, as shown in Figures 1 to 4, be respectively another visual angle figure of three-dimensional exploded view of the present utility model, three-dimensional combination figure of the present utility model, Fig. 2 and the cutaway view of the utility model part combination of components, this loop-type heat abstractor comprises a radiating fin group 10, a pair of heat-conductive assembly 20, reaches a pair of pressing plate 30.
This radiating fin group 10 is formed by mutually assembling by a plurality of radiating fins 11, described radiating fin 11 is combined into one with the cramp connected mode, or it is one-body molded by aluminium extruded type technology, can avoid described radiating fin 11 to disperse to drop, but do not exceed with this kind means, corresponding end face in described radiating fin 11 offers first groove 12 and second groove 13 respectively, further explain, the top of described radiating fin 11 offers the breach of same position respectively, these breach then bunchiness are connected to form this first groove 12, the bottom of described radiating fin 11 offers the breach of same position respectively, described breach then bunchiness is connected to form this second groove 13, the top of described again radiating fin 11 or bottom more can be offered other groove respectively, and the groove of the groove on top and bottom misplaces each other and makes distance each other be unlikely to narrow.
Each this heat-conductive assembly 20 comprises a can 21 and a metal tube 22.
On actual industry was used, this can 21 was a temperature-uniforming plate, but does not exceed with this kind assembly, and this can 21 has hollow interior space, formed a capillary structure 24 in the inwall of this can 21 with sintering processing, but did not exceed with this kind welding means; Again, this capillary structure 24 can be sintered type metal dust or structures such as metal knitted net or groove.
On actual industry is used, this metal tube 22 is a heat pipe, but do not exceed with this kind assembly, that heat pipe has is super-silent, flash heat transfer, high thermoconductivity, in light weight, size is little, no movable piece, characteristic such as simple in structure, be widely used in electronic building brick heat radiation field, this metal tube 22 has the internal pipeline of hollow, inwall in this metal tube 22 forms a capillary structure 24 with sintering processing, but do not exceed with this kind welding means, again, this capillary structure 24 can be metal powder sintered or structure such as metal knitted net.
The two ends of this metal tube 22 are communicated with described can 21, the internal pipeline of this metal tube 22 is communicated with the inner space of can 21 and forms a vacuum chamber 23, one working fluid 25 filled in this vacuum chamber 23 vacuumize again, 25 of this working fluids can infiltrate through in this hole, this working fluid 25 can be used the heat of vaporization height, good fluidity, chemical property is stable, the liquid that boiling point is lower, as water, ethanol, acetone etc., this capillary structure 24 in this can 21 is in the intersection of these metal tube 22 1 ends and this can 21, its loading is bigger, can save this working fluid 25 of more amount.
In addition, this can 21 further comprises a supporting construction 211, because this can 21 is a kind of extremely thin plate bodys, must support this capillary structure 24 with this supporting construction 211, inwardly collapse with end face and the bottom surface of avoiding this can 21, this supporting construction 211 is to be formed with the wavy external form of continuous bending with stamping technology, but does not exceed with this kind moulding means or this kind configuration.
Each this pressing plate 30 is made by the good material of thermal conductivity, the one side depression of each pressing plate 30 forms a groove 31, and the one side of each pressing plate 30 more can cave in and form other groove, its quantity is for cooperating the quantity of groove, this is covered in the both ends of the surface of described radiating fin 11 respectively to pressing plate 30, this first groove 12, this second groove 13, and this groove 31 all is semi-cylindrical, and the configuration that cooperates this metal tube 22, one of them these metal tube 22 build-in is in this first groove 12 and this groove 31, another these metal tube 22 build-ins are in this second groove 13 and this groove 31, arbitrary this metal tube 22 more can be back and forth agley build-in in each groove, to increase and the contact area of described radiating fin 11.
As shown in Figure 5 and Figure 6, be respectively the partly illustrative view of assembly of illustrative view of the present utility model and described Fig. 5, arbitrary this can 21 is amplexiformed on arbitrary heat generating component 40, but the spreading thermal grease passes coefficient to increase heat between this can 21 and the described heat generating component 40, described heat generating component 40 with heat transferred to this can 21, these working fluids 25 in this capillary structure 24 are heated and flash to heat steam and diffuse in this vacuum chamber 23, by perfect gas equation as can be known, in closed system, the pressure of gas is directly proportional with temperature, this moment, this can 21 was because of contacting with described heat generating component 40 again, its temperature must be higher than this metal tube 22, then steam can drift about toward the low temperature place, promptly in this vacuum chamber 23, waft toward this metal tube 22 by this can 21, and steam is when flowing through described radiating fin 11 positions in this metal tube 22, described radiating fin 11 is brushed and cooled off to cool ambient air, then steam with heat transferred to the described radiating fin 11, with and be cooled to liquid, and liquid refluxes via this capillary structure 24 and replenishes.
If steam can't total condensation be a liquid when flowing to described radiating fin 11 positions in this can 21, remaining steam can be promoted by the steam that continue to produce in this can 21 and in this can 21 that flows back forward, finish circulation with this, flow smooth and easy and can increase heat conduction efficiency, even at initial period, steam in this can 21 enters to described radiating fin 11 positions by these metal tube 22 two ends simultaneously and carries out thermolysis, finally still can become the one-way flow circulation because of non-equilibrium state slightly.
The two sides that will be arranged on this radiating fin group 10 to heat-conductive assembly 20 mainly is to reduce whole taking up room, if this is arranged on the same one side of this radiating fin group 10 to heat-conductive assembly 20, then the size of this radiating fin group 10 must increase, otherwise can be between the described metal tube 22 because of the hypotelorism thermally conductive pathways that interacts, and the utility model can be done to disperse by corresponding many thermals source, and is very practical.
And this metal tube 22 is seated in the groove in the build-in mode, mainly be to be to consider with easy for installation, after promptly this can 21 is combined into this heat-conductive assembly 20 of loop-type with this metal tube 22, the Lower Half of this metal tube 22 directly is embedded in the groove, and this pressing plate 30 covers thereon again, the first half of this metal tube 22 then is embedded in the groove, makes the heat of these metal tube 22 first halves be passed to described radiating fin 11 via this pressing plate 30, increases radiating efficiency.
As shown in Figure 7 and Figure 8, be respectively of the present utility model another and implement illustration and another enforcement illustration of the present utility model, when arbitrary this can 21 amplexiforms on arbitrary heat generating component 40, be fixed on the purpose pedestal with a locking part 50 again, it is more firm that this can 21 is more fitted tightly in described heat generating component 40 and integral body, these locking part 50 surfaces are more protruding again forms plural thermal column 51, the heat of accumulation in this can 21 can be distributed fast, and must not transfer heat to the action that described radiating fin 11 is done heat radiation again via this metal tube 22, can promote whole radiating efficiency.
The utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art various corresponding changes and distortion when developing according to the utility model, but these corresponding changes and distortion all should belong to the utility model scope required for protection.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.
Claims (9)
1. a loop-type heat abstractor is characterized in that, this heat abstractor comprises:
One radiating fin group mainly is formed by mutually assembling by a plurality of radiating fins, offers first groove and second groove respectively in the corresponding end face of described radiating fin; And
A pair of heat-conductive assembly, each heat-conductive assembly comprises a can and a metal tube, the two ends of described metal tube are communicated with the corresponding metal box respectively and form a vacuum chamber in inside, be laid with a capillary structure in the described vacuum chamber and be filled with working fluid, wherein, one of described metal tube is striden and is established described radiating fin and build-in in this first groove, and another metal tube is striden and established described radiating fin and build-in in described second groove.
2. loop-type heat abstractor according to claim 1 is characterized in that, described first groove and described second groove are the dislocation configuration.
3. loop-type heat abstractor according to claim 1 is characterized in that, described can further comprises a supporting construction that is located in the described vacuum chamber.
4. loop-type heat abstractor according to claim 3 is characterized in that it is wavy that described supporting construction is continuous bending.
5. loop-type heat abstractor according to claim 1 is characterized in that described heat abstractor further comprises a pressing plate, and this pressing plate covers described radiating fin and the wherein arbitrary metal tube of thermo-contact.
6. loop-type heat abstractor according to claim 5 is characterized in that, described pressing plate is offered and formed a groove, and one of described metal tube build-in is in described first groove and groove.
7. loop-type heat abstractor according to claim 1 is characterized in that described heat abstractor further comprises a pressing plate, and described pressing plate covers described radiating fin and another metal tube of thermo-contact.
8. loop-type heat abstractor according to claim 7 is characterized in that, described pressing plate is offered and formed a groove, and described another metal tube build-in is in described second groove and groove.
9. loop-type heat abstractor according to claim 1 is characterized in that, described capillary structure is the sintered type metal dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201734628U CN201571286U (en) | 2009-09-03 | 2009-09-03 | Loop type heat dissipation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201734628U CN201571286U (en) | 2009-09-03 | 2009-09-03 | Loop type heat dissipation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201571286U true CN201571286U (en) | 2010-09-01 |
Family
ID=42663583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201734628U Expired - Lifetime CN201571286U (en) | 2009-09-03 | 2009-09-03 | Loop type heat dissipation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201571286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774755A (en) * | 2017-02-16 | 2017-05-31 | 联想(北京)有限公司 | A kind of heat abstractor |
| CN109974137A (en) * | 2019-04-19 | 2019-07-05 | 青岛海尔智能技术研发有限公司 | A kind of air-conditioner outdoor unit and air conditioner |
-
2009
- 2009-09-03 CN CN2009201734628U patent/CN201571286U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106774755A (en) * | 2017-02-16 | 2017-05-31 | 联想(北京)有限公司 | A kind of heat abstractor |
| CN109974137A (en) * | 2019-04-19 | 2019-07-05 | 青岛海尔智能技术研发有限公司 | A kind of air-conditioner outdoor unit and air conditioner |
| CN109974137B (en) * | 2019-04-19 | 2024-05-17 | 青岛海尔智能技术研发有限公司 | Air conditioner outdoor unit and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
|
| CX01 | Expiry of patent term |