CN102338582A

CN102338582A - Thin plate type low-pressure thermosyphon plate driving by pressure gradient

Info

Publication number: CN102338582A
Application number: CN201010238485XA
Authority: CN
Inventors: 江贵凤; 张始伟; 顾云军
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2010-07-23
Filing date: 2010-07-23
Publication date: 2012-02-01
Anticipated expiration: 2030-07-23
Also published as: CN102338582B

Abstract

The invention relates to a thin plate type low-pressure thermosyphon plate driving by pressure gradient; the thin plate type low-pressure thermosyphon plate driving comprises a body and a plate body, wherein the plate body corresponds to and covers the body; the body is provided with a heating area in a position close to the center; both sides of the heating area are provided with a pressure storage area and a first flow path group; the pressure storage areas is connected with a free area which is further connected with a first condensate area and a second condensate area; the first flow path group is further connected with a third condensate area and a fourth condensate area; a second flow path group is arranged between the first condensate area and the third condensate area and is connected with the first condensate area and the third condensate area; a third flow path group is arranged between the second condensate area and the fourth condensate area and is connected with the second condensate area and the fourth condensate area; and a low-pressure end is generated through the appropriate pressure reduction design to form a driving pressure difference to drive the pressure gradient which is required for vapor water circulation in the thermosyphon plate and can drive working fluid to transfer heat without any capillary structures.

Description

The thin board type low pressure thermal siphon plate of barometric gradient driving

Technical field

A kind of thin board type low pressure thermal siphon plate of barometric gradient driving refers to that especially a kind of capillary structure that can not must be provided with can conduct heat, and has more the thin board type low pressure thermal siphon plate of the barometric gradient driving of hot transfer efficiency.

Background technology

In recent years along with the progress of flourish, the process technique of electronic semi-conductor's industry; And under the trend of the market demand; Electronic equipment gradually move towards compact kenel, but in the diminishing process of overall dimensions, function and operational capability but are growing on and on.Picture mobile computer that the output value is the highest in information industry and desktop PC are when actual operation; Just there is multinomial electronic component to produce heat; The heat maximum that is wherein produced with central processor CPU (Central Processing Unit) again; The radiator that this moment, fin cooperated fan to form provides heat sinking function promptly to play the part of the key player who protects CPU; Make CPU maintain normal working temperature, so cpu heat is important spare part in the information industry now with the performance function that should have.

So Water Cooling Technology begins to be used in widely on the personal computer in recent years; Though seeming, water

technology saved bulky fin; But be that the heat of system's endogenous pyrogen was collected in the hydraulic fluid in fact; And then do the action of heat exchange with air by heat exchanger is unified; Because pipeline length can change voluntarily; So the position of heat exchanger is elasticity comparatively also, also lets the design of heat exchanger (radiating fin) can not receive the restriction on the space; The liquid flow but pumping of water-cooling system needs pushes the work forward; But also need a storage tank, so whole system still has pumping reliability issues, pipeline leakage problem ... etc., but because the heat of the heat generating component in the personal computer constantly increases; So though the water-cooled heat dissipation technology is not all roses; Remain the optimal selection of heat management and control in the market, but, this is because the volume of personal computer is huger; And the outside does not have the space limit yet; But just different at mobile computer, mobile computer is at present more and more compact, just can't make the heat dissipation technology of water

at all; Use heat pipe to do the heat transfer so remain at present; And then use radiating fin to do the action of heat exchange, in addition, also can only reduce the power consumption of CPU as far as possible.In view of this, industry is actively sought the higher heat dissipation technology of heat flux invariably, with in response to following one by one huge radiating requirements.

Known techniques is also used as heat conducting component through radiating subassemblies such as heat pipe, temperature-uniforming plates in addition; And Guan Yuqi inwall moulding one sintered body passes through in system when making heat pipe and temperature-uniforming plate, uses as capillary structure, and its main processing procedure system is filled in a metal (copper) or a powder in this inwall earlier; Again with its copper particle or powder densification compacting; Send at last and impose sintering processing in the sintering furnace, make this copper particle or powder form the capillary structure of porous character, make it and to get capillary force by this sintered body; But because of making the volume of this heat pipe and temperature-uniforming plate, this sintered body exists certain thickness also, and effectively slimming; The said VC of person (Vapor chamber) is core or structures such as grid or groove of using sintering in addition; And then the carbonated drink that produces among capillary force phenomenon driving heat pipe or the VC (Vapor chamber) is circulated; But the application manufacture on this structure is quite complicated, increases manufacturing cost, so very inappropriate.

Moreover the selection of steam core system is a knowledge, and it is quite important selecting suitable steam core, and this steam core need keep the flow velocity of condensate liquid and keep enough capillary pressure to overcome the influence of gravity.

So the heat pipe or the VC (Vapor chamber) of known techniques have disadvantage:

1. inconvenient machining;

2. can't realize slimming;

3. cost is higher;

4. expend man-hour.

Summary of the invention

For effectively solving above-mentioned problem, the main purpose of this creation is to provide not need any capillary structure can drive working fluid transmission heat, and significantly reduces the thin board type low pressure thermal siphon plate of the barometric gradient driving of manufacturing cost.

Another purpose of this creation is that a kind of thin board type low pressure thermal siphon plate with barometric gradient driving of high-efficiency thermal transfer efficiency is provided.

For reaching above-mentioned purpose; This creation system provides a kind of thin board type low pressure thermal siphon plate of barometric gradient driving; System comprises: a body, a plate body, and this plate body correspondence covers aforementioned body, and this body is provided with a heat affected zone near centre; These both sides, heat affected zone have a pressure accumulation district and a first flow group; And this pressure accumulation district connects a free zone, and this free zone more connects one first condensing zone and one second condensing zone, and this pressure accumulation district more connects one the 3rd condensing zone and one the 4th condensing zone; Have one second runner group between said first and third condensing zone and be communicated with this first and third condensing zone, said second, four condensing zones have one the 3rd runner group and are communicated with this second, four condensing zone; Decompression design by suitable produces low-pressure end, and the required barometric gradient of carbonated drink circulation does not need any capillary structure can drive working fluid and transmits heat in the formation driving pressure difference driving thermal siphon plate, and significantly reduces manufacturing cost person.

Description of drawings

Fig. 1 system is the thin board type low pressure thermal siphon plate preferred embodiment three-dimensional exploded view of this creation barometric gradient driving;

Fig. 2 system is the thin board type low pressure thermal siphon plate preferred embodiment three-dimensional combination figure of this creation barometric gradient driving;

Fig. 3 system is the thin board type low pressure thermal siphon plate preferred embodiment body vertical view of this creation barometric gradient driving;

Fig. 4 system is the thin board type low pressure thermal siphon plate second embodiment body vertical view of this creation barometric gradient driving;

Fig. 5 system is thin board type low pressure thermal siphon plate the 3rd embodiment body vertical view of this creation barometric gradient driving;

Fig. 6 system is thin board type low pressure thermal siphon plate the 4th embodiment body vertical view of this creation barometric gradient driving;

Fig. 7 system is thin board type low pressure thermal siphon plate the 5th embodiment body vertical view of this creation barometric gradient driving.

The primary clustering symbol description

Body 1 first spacing 112

Plate body 1a free zone 12

11 pressure accumulation districts 13, heat affected zone

Projection 111 pressure accumulation runners 131

Pressure accumulation baffle 132 second sword limits 2123

First condensing zone, 14 second runner groups 22

Second condensing zone, 15 second runners 221

The 3rd condensing zone 16 second baffles 222

The 4th condensing zone 17 the 3rd runner group 23

First outlet, 18 the 3rd runners 231

Second outlet, 19 the 3rd baffles 232

First flow group 21 pits 3

First flow 211 evaporation bubbles 4

First baffle, 212 fins 5

First drift angle 2,121 first interval 6

The first sword limit 2,122 second interval 7

The specific embodiment

Characteristic on the above-mentioned purpose of this creation and structure thereof and the function will be explained according to appended graphic preferred embodiment.

See also the 1st, 2,3 figure, the thin board type low pressure thermal siphon plate preferred embodiment of as shown in the figure creation barometric gradient driving, the thin board type low pressure thermal siphon plate of said barometric gradient driving is to comprise: a body 1, a plate body 1a;

This plate body 1a correspondence covers this body 1.

This body 1 has a heat affected zone 11, a first flow group 21, one second runner group 22, one the 3rd runner group 23, a free zone 12, a pressure accumulation district 13, one first condensing zone 14, one second condensing zone 15, one the 3rd condensing zone 16, one the 4th condensing zone 17.

The centre near body 1 of this body 1 is located in this heat affected zone 11; And these 11 both sides, heat affected zone connect this a first flow group 21 and a pressure accumulation district 13 respectively; And this pressure accumulation district 13 has plural pressure accumulation runner 131 and plural pressure accumulation baffle 132; These pressure accumulation runners 131 are formed in twos 132 of pressure accumulation baffles, and connect aforementioned free zone 12 by this pressure accumulation runner 131.

This heat affected zone 11 has plural projection 111 and is distributed in distance, and 111 of these projections have one first spacing 112.

This free zone 12 connects aforementioned first condensing zone 14 and second condensing zone 15 respectively, and first flow group 21 connects aforementioned the 3rd condensing zone 16 and the 4th condensing zone 17.

The said second runner group 22 is at this first and third condensing zone 14, between 16, and is communicated with these first and

third condensing zones

14,16 by the 3rd runner group 22.

Said the 3rd runner group 23 is at this second, four condensing zone 15, between 17, and is communicated with these second, four

condensing zones

15,17 by the 3rd runner group 23.

Said first flow group 21 has plural first flow 211 and plural first baffle 212; These first baffles 212 are distributed in distance; And this first flow 211 is formed in twos 212 of first baffles; The said second runner group 22 has plural second runner 221 and plural second baffle 222, and these second baffles 222 are distributed in distance, and this second runner 221 is formed in twos 222 of second baffles.

Said the 3rd runner group 23 has plural number the 3rd runner 231 and plural number the 3rd baffle 232, and these grade in an imperial examination three baffles 232 are distributed in distance, and the 3rd runner 231 is formed in twos 232 of the 3rd baffles.

Said first, second and third baffle 212,222,232 in this preferred embodiment is to be a strip rib.

See also the 4th figure; System is thin board type low pressure thermal siphon plate second embodiment of the barometric gradient driving of this creation; As shown in the figure; The association system of present embodiment part-structure and inter-module is identical with aforementioned preferred embodiment, so repeat no more at this, only present embodiment and aforementioned preferred embodiment difference system is to be a rib for said first baffle 212; This rib has one first drift angle 2121 and one first sword limit 2122 and one second sword limit 2123, and said first and second sword limit 2122,2123 intersects at this first drift angle 2121.

See also the 5th figure; System is thin board type low pressure thermal siphon plate the 3rd embodiment of the barometric gradient driving of this creation; As shown in the figure, the association system of present embodiment part-structure and inter-module is identical with aforementioned preferred embodiment, so repeat no more at this; Only present embodiment and aforementioned preferred embodiment difference system has more a fin 5 for said body, and this fin 5 vertically runs through this heat affected zone 11 and this pressure accumulation district 13 and this first flow group 21.

See also the 6th figure; System is thin board type low pressure thermal siphon plate the 4th embodiment of the barometric gradient driving of this creation; As shown in the figure; The association system of present embodiment part-structure and inter-module is identical with aforementioned preferred embodiment; So repeat no more at this, only present embodiment and aforementioned preferred embodiment difference system has more a fin 5 and one first outlet, 18 and 1 second outlet 19 for this body, and this fin 5 vertically runs through this heat affected zone 11 and this pressure accumulation district 13 and this first flow group 21 and also this body 1 defined one first interval 6 and 1 second interval 7.

See also the 7th figure; System is thin board type low pressure thermal siphon plate the 5th embodiment of the barometric gradient driving of this creation; As shown in the figure; The association system of present embodiment part-structure and inter-module is identical with aforementioned preferred embodiment, so repeat no more at this, only present embodiment and aforementioned preferred embodiment difference system has plural pit 3 for said these 211,221,231 of first, second and third baffles; And said pit 3 be can be rounded and square and triangle and fish scale shape and geometry wherein arbitrary; In this illustrative embodiment be with the fish scale shape as explanation, do not exceed but do not regard it as, also can add among aforementioned first, second, third and fourth embodiment present embodiment in fish scale shape pit 3 technical characterictics.

Please consult the 3rd figure again; As shown in the figure; This creation preferred embodiment and second and third, four embodiment are the thin board type low pressure thermal siphon plate recirculation refrigerating technology that proposes two phase pressure gradient-driven; The method is that the oneself drives endless form, and it is wherein arbitrary that the working fluid of use can be refrigerants such as pure water, methyl alcohol, acetone, R134A, is the state for vacuumizing within the thin board type low pressure thermal siphon plate of barometric gradient driving; So, be the saturation temperature of working fluid in 20～30 degree Celsius in inner working fluid of being filled; This heat affected zone be provided with projection 111 arrays produce superheated steam bubble 4 in, flow through free zone 12 and the moment step-down produces and drives the required barometric gradient of carbonated drink circulation; Receive first, second, third and

fourth condensing zone

14,15,16,17 guidings in addition, flow back to heat affected zone 11 (zone that promptly has projection 111), accomplish the carbonated drink circulation via this first, second and third runner group.

Be that the heat affected zone 11 that system's utilization contacts with the heat generating component (not shown) produces overheated vapour; Set up and drive the carbonated drink circulation; Be that heat is directed in 11 surfaces, body 1 heat affected zone and reaches this heat affected zone 11 again and produce boiling phenomenons and make the partially-working fluid vaporization; Dispel the heat to this first, second, third and fourth condensing

zone

14,15,16,17 again by heat affected zone 11 to this free zone 12 because of degree of superheat generation pressure (being that pressure accumulation district 13 pressure are bigger) promotes this fluid by vapor bubbles 4 again; Working fluid after the condensation is got back to heat affected zone 11 by pressure accumulation district 13 pressurization, and promptly absorb heat and recycle in the heat affected zone 11 that contacts with the heat generating component (not shown), heat affected zone 11.

Use evaporation (pressurization), condensation (step-down), set up required barometric gradient and the circulatory flow of vapour-liquid circulation, can avoid the use of capillary structure, significantly reduce VC thickness, significantly improve the uniform temperature of the thin board type low pressure thermal siphon plate of barometric gradient driving, and reduce thermal resistance.

In addition, this creation makes the fluid backflow also can be equipped with capillary structures such as mesh for guaranteeing, is back to pressure accumulation district or heat affected zone person to help working fluid.

Though each big heat radiation factory drops into many Water Cooling Technology in recent years; Especially active Water Cooling Technology; Be the group Pu and produce circulation power; Yet this kind method is easy to generate the reliability and the life problems of group's Pu valve member, but the advantage of the thin board type low pressure thermal siphon plate of the two phase pressure gradient-driven that this creation proposed circulation

technology is not have moving part in the system; Therefore there are not problems such as part consume and life-span; And need not add extra pumping and capillary structure, can save the energy, more can solve the problem of noise.

Claims

1. the thin board type low pressure thermal siphon plate of a barometric gradient driving is to comprise:

One body; Be provided with a heat affected zone near centre, these both sides, heat affected zone have a pressure accumulation district and a first flow group, and this pressure accumulation district connects a free zone; This free zone more connects one first condensing zone and one second condensing zone; This first flow group more connects one the 3rd condensing zone and one the 4th condensing zone, has one second runner group between said first and third condensing zone and is communicated with this first and third condensing zone, and said second, four condensing zones have one the 3rd runner group and are communicated with this second, four condensing zone;

One plate body, correspondence cover aforementioned body.

2. according to claim 1 the thin board type low pressure thermal siphon plate of barometric gradient driving, wherein said heat affected zone has plural projection and is distributed in distance, and has one first spacing between these projections.

3. according to claim 1 the thin board type low pressure thermal siphon plate of barometric gradient driving; Wherein said first flow group has plural first flow and plural first baffle, and these first baffles are distributed in distance, and this first flow is formed in twos between first baffle; The said second runner group has plural second runner and plural second baffle; These second baffles are distributed in distance, and this second runner is formed in twos between second baffle, and said the 3rd runner group has plural number the 3rd runner and plural number the 3rd baffle; These grade in an imperial examination three baffles are distributed in distance, and the 3rd runner is formed in twos between the 3rd baffle.

4. like the thin board type low pressure thermal siphon plate of the said barometric gradient driving of claim 3, wherein said first, second and third water conservancy diversion system is a strip rib.

5. according to claim 1 the thin board type low pressure thermal siphon plate of barometric gradient driving has plural pit between wherein said these first, second and third runners.

6. like the thin board type low pressure thermal siphon plate of the said barometric gradient driving of claim 5, wherein said pit be rounded and square and triangle and fish scale shape and geometric figure wherein arbitrary.

7. according to claim 1 the thin board type low pressure thermal siphon plate of barometric gradient driving wherein has more working fluid in this body, and this working flow system is that pure water and methyl alcohol and refrigerants such as acetone and R134A are wherein arbitrary.

8. according to claim 1 the thin board type low pressure thermal siphon plate of barometric gradient driving, wherein this pressure accumulation district has plural pressure accumulation runner and plural pressure accumulation baffle, and these pressure accumulation baffles are distributed in distance, and this pressure accumulation runner is formed in twos between the pressure accumulation baffle.

9. like the thin board type low pressure thermal siphon plate of the said barometric gradient driving of claim 3; Wherein this first water conservancy diversion system is a rib; This rib has one first drift angle and one first sword limit and one second sword limit; Said first and second sword limit intersects at this first drift angle, and these first flows are formed between these ribs, and has one first spacing between these first diversion divisions.

10. according to claim 1 the thin board type low pressure thermal siphon plate of barometric gradient driving has more a fin, and this fin vertically runs through this heat affected zone and this pressure accumulation district and this first flow group.

11. the thin board type low pressure thermal siphon plate of barometric gradient driving according to claim 1; Have more a fin and one first outlet and one second outlet, this fin vertically runs through this heat affected zone and this pressure accumulation district and this first flow group also with this body defining one first interval and one second interval.