CN201064077Y - Loop type hot pipe full aluminum heat radiator - Google Patents

Abstract

The utility model relates to a loop heat-pipe full-aluminum radiator, comprising an aluminum condenser, an evaporator assembly, and two capillary pipes, wherein, the condenser consists of a radiating pipe arranged between radiating fins; the radiating pipe is provided with an output end and an input end, which are designed for the capillary pipes to connect with the evaporator assembly; the component joints are attached with filling materials consisting of aluminum-based materials; when heated by hard brazing up to or above the melting point of the filling materials, the filling materials are melted into the joints; by right of the joint of connatural compatible interfaces, the relative joints of the condenser, the evaporator assembly, and the two capillary pipes are melted into a whole, thereby forming a loop heat-pipe radiator.

Description

The full aluminium radiator of loop hot-pipe

Technical field

The utility model is about a kind of radiator, and is particularly relevant with the full aluminium radiator of a kind of loop hot-pipe.

Background technology

Central processor CPU now, the VGA chip, drawing chip ... waiting the various running clock pulses that are located at the microprocessor of computer inside is constantly to be modified and to promote, under this working at high speed, the heat that microprocessor produced can increase with its speed, in general, the temperature of microprocessor is during near high temperature, can keep good performance more, but the processing speed during to high temperature just can descend, and wrong possibility also can improve, in addition, when the microprocessor caloric value was too high, as easy as rolling off a log generation computer was when the situation of machine or data damage, if this kind high-temperature situation continues to take place, just the problem that causes the high price microprocessor to change.For solving the overheated situation of microprocessor computing, the torrid zone of this microprocessor must be gone out, therefore fin slices radiator is just given birth to because of fortune, it increases heat transfer with the fan forced air convection, and because the also increase relatively of the heat that increase produced of computer arithmetic speed, from the 20W of Pentium to more than the 80W of Pentium VI, therefore fin slices radiator is nothing more than to pursue the fan of high air quantity, perhaps increase fin heat radiation specific area in response to, but certain restriction is arranged eventually, be difficult to apply in the higher notes computer or in other miniature electronic product, because the process of the short and small frivolous and long-pending body technology evolution of key spare part, marched toward micro electronmechanical system technical field at present, utilize visible future the Micro Cooler of new technology must be notebook computer even desktop computer employing, and many big power densities are mobile phone for example, infrared sensor or the like all may utilize this technology, and being has with, traditional fin slices radiator to be difficult for the bottleneck broken through.

With regard to hot transfer efficiency, two-phase is drifted hot mode more than the single-phase heat efficiency height that moves, be characterized in utilizing the latent heat variation between the working fluid two-phase and remove a large amount of thermals source rapidly, since two-phase heat pass (evaporate and condense) coefficient be the air unidirectional heat pass more than hundred times, and pass regional temperature in two-phase heat and approximately keep constant, and the heat transfer apparatus that notion developed out according to this, be referred to as heat pipe (Heat Pipe), but the design principle of traditional type heat pipe is a steam is to be present in identical space with fluid passage, therefore the speed that moves up when steam and the speed (supposing that heat pipe is in vertical user mode) of liquid downslide reach certain when critical, then can produce the phenomenon of carrying under one's arms, can increase vapour thus, unsteadiness between liquid, even the minimizing condensed fluid is back to the inner evaporation of evaporator assembly, the heat of evaporator assembly heating surface can't be taken away by circulating fluid, and then cause the evaporator assembly wall temperature to rise suddenly, cause the mummification phenomenon at last, microprocessor just can burn, so the plain type heat-pipe radiator can't practical requirement.

Gai Liang method is with liquid now, vapour transmits channel separation, make working fluid produce one-way flow, in order to do when calorifying evaporator assembly, this liquid is the inflow evaporator assembly by capillary force effect absorption, form steam through heat exchange, continue and his like to the condenser heat radiation and form liquid, so finish the heat effect that moves of natural circulation, be referred to as loop hot-pipe (Loop Heat Pipe), it is owing to be to lean on the latent heat of working fluid to move heat, therefore can be easily the thermal source of mobile computer microprocessor be sent near the shell, utilizes the heat of the just removable superelevation amount of Case Fan again, its radiating efficiency can be considerably beyond existing fin slices radiator.

But this loop hot-pipe (Loop Heat Pipe) sink-efficiency is unclear, and its pipeline and capillary all adopt copper pipe, and evaporator assembly is also adopted copper product, high at copper valency now, the producer can't marry again under the cost fully, it produces several profitless saying, this is that present manufacturing technology can't break through part.In addition, copper pipeline and capillary, evaporator assembly are higher in proportion, so overall weight is not light, for several g of notebook computers of all haggling over or other miniature electronic product weight, it is not inconsistent the market demand of light weight fully.

In view of this, the inventor is professional experiences and the gains in depth of comprehension with for many years, grind through constantly conceiving, creating, and be to develop the utility model.

The utility model content

The purpose of this utility model provides the full aluminium radiator of a kind of loop hot-pipe, its good heat dissipation effect, and low cost of manufacture, overall weight are light, meet economical and practical demand.

Technical solution of the present utility model for this reason is: the full aluminium radiator of a kind of loop hot-pipe, condenser, aluminum evaporator assembly and aluminum two capillaries by aluminum are formed, wherein condenser wears radiating tube and forms between fin, and this radiating tube has an input, an output so that working fluid cycles to be provided; Evaporator assembly has an access port and an exit, removes the structure of a large amount of thermals source rapidly in having the latent heat variation that utilizes between the working fluid two-phase between access port and exit; First capillary connects radiating tube output, evaporator assembly access port, second capillary then connects radiating tube input, evaporator assembly exit, and above-mentioned each spare part in the junction intermediary be attached with the filler of alumina-base material, after assembling, carry out hard solder, make this condenser, evaporator assembly and the relative junction of two capillaries hot melt link adherence be integral, to constitute a loop heat-tube heat radiator.

Above-mentioned evaporator assembly can absorb the aluminum base that heater element produces heat by one, and the aluminum tubulose evaporation body of removing a large amount of thermals source by utilizing latent heat between the working fluid two-phase to change rapidly formed, and the access port of evaporator assembly and exit are to be arranged at the evaporation body respectively.

Said base is concaved with the arc groove for the involutory connection of evaporation body.

Above-mentioned evaporation body is provided with dividing plate in pore, and involutory respectively in two ends end cap arranged, make in the evaporation body and form between a latent heat constant interval, a doab, the involutory aluminum reverse osmosis core that ring-type is arranged of its latent heat constant interval, the dividing plate that is positioned at the reverse osmosis core then is provided with pore, and having provided access port in the end cap of latent heat constant interval, the end cap between the doab then is provided with the exit; Its first capillary, one end fit connects the radiating tube output, end inserts connection evaporator assembly access port and inserts reverse osmosis core mesopore in addition, in second capillary, one end then fit connect the radiating tube input, end then inserts and connects the evaporator assembly exit in addition, make liquid by capillary force effect absorption and by access port inflow evaporator assembly latent heat constant interval, this liquid is by first capillary, the reverse osmosis core utilizes the latent heat between the working fluid two-phase to change and removes a large amount of thermals source rapidly, in order to do entering between the doab through the dividing plate pore of vaporization, that continues flow to condenser by the exit and condenses.

The punching out of above-mentioned fin end face has the assembly hole more than two, and the assembly hole endoporus penetrates joint for the radiating tube external diameter, makes radiating tube be the assembly hole that is interspersed in each fin of continuous bend.

Above-mentioned fin end face stretches to other end face axial of fin along assembly hole the equal aperture and the concentric collar, and this assembly hole penetrates for the radiating tube external diameter with collar endoporus and engages, and adjacent fin becomes to pile up the spacing setting by collar-shaped.

The other punching out of above-mentioned fin end face has guiding gutter, to other end face projection of fin location edge is arranged along guiding gutter, and these adjacent fin are formed by location edge and pile up the spacing setting.

Adopt such scheme, the utility model mainly is by condenser, evaporator assembly and two capillaries constitute a loop heat-tube heat radiator, inner liquid, the vapour working fluid can produce one-way flow when evaporator assembly, liquid is by capillary force effect absorption and by the latent heat constant interval of access port inflow evaporator assembly, by first capillary, the reverse osmosis core utilizes the latent heat between the working fluid two-phase to change and removes a large amount of thermals source rapidly, and the entering between the doab through the pore of dividing plate of vaporization, that continues flow to condenser by the exit and condenses, and so finishes the thermolysis of natural circulation.In addition, because the utility model adopts the lighter aluminium manufacturing of proportion, and the aluminium valency is cheap far beyond the copper valency, constitutes low, the lightweight loop heat-tube heat radiator of a cost according to this, quite has market competitiveness, and can reach the radiating effect of expection.

Description of drawings

Fig. 1 is a combination schematic diagram of the present utility model;

Fig. 2 is the part decomposing schematic representation of the utility model condenser;

Fig. 3 is the combination schematic appearance of the utility model condenser;

Fig. 4 is the schematic diagram of looking closely of the utility model evaporator assembly;

Fig. 5 is the section schematic top plan view of the utility model evaporator assembly.

The main element symbol description

10 fin, 11 assembly holes, 110 collars

12 guiding gutters, 120 location edges, 20 radiating tubes

30 evaporator assemblies, 31 pedestals, 311 arc grooves

32 evaporation bodies, 321 dividing plates, 322 end caps

325 reverse osmosis cores between 323 latent heat constant intervals, 324 doabs

326 access ports, 327 exits, 40,400 capillaries

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is elaborated:

Please extremely shown in Figure 5 referring to Fig. 1, the utility model comprises:

One condenser is made up of aluminum thermal fin 10 and aluminum radiating tube 20, and described radiating tube 20 has an input, an output and liquid, vapour working fluid cycles can be provided; Its fin 10 end face punching out have two assembly holes 11, and guiding gutter 12 is arranged in fin 10 other desired location punching out, it has location edge 120 along guiding gutter 12 to fin 10 other end face projections, and stretching to fin 10 other end face axial along assembly hole 11 simultaneously has the equal aperture and the concentric collar 110; This assembly hole 11 penetrates for radiating tube 20 external diameters with the collar 110 endoporus and engages, and adjacent fin 10 is formed by the collar 110, location edge 120 and piles up the spacing setting, make the take the shape of the letter U assembly hole that is interspersed in each fin 10 11 of shape of radiating tube 20, make radiating tube 20 2 distal process for same fin 10 outsides, and fin 10 and radiating tube 20 are coated with the filler that alumina-base material constitutes in the junction, and this filler contains 60%-95% aluminium; Identical reason, but the assembly hole 11 of its fin 10 end face punching out more than two are used so that radiating tube 20 is the assembly hole that is interspersed in each fin 10 11 of continuous bend, and this moment, radiating tube 20 2 ends just not necessarily protruded in same fin 10 outsides;

One aluminum evaporator assembly 30, it can absorb the aluminum base 31 that heater element (for example microprocessor) produces heat by one, and the aluminum evaporation body 32 of removing a large amount of thermals source by utilizing the latent heat variation between the working fluid two-phase is rapidly formed, these pedestal 31 one sides are concaved with arc groove 311, use for the 32 involutory connections of tubulose evaporation body, this evaporation body 32 is provided with dividing plate 321 in running through pore, and involutory respectively in two ends end cap 322 arranged, make in the evaporation body 32 and form a latent heat constant interval 323, between one doab 324, the aluminum reverse osmosis core 325 of its latent heat constant interval 323 involutory ring-types, 321 on the dividing plate that is positioned at reverse osmosis core 325 is provided with the pore (not shown), and provided access port 326 in the end cap 322 of latent heat constant interval 323, be provided with exit 327 as for 324 322 of end caps between the doab;

Two aluminum capillaries 40,400, its first capillary, 40 1 end fits connect radiating tube 20 outputs, end inserts connection evaporator assembly 30 access ports 326 and inserts reverse osmosis core 325 mesopores in addition, and then fit connects radiating tube 20 inputs, end then inserts connection evaporator assembly 30 exits 327 in addition as for second capillary, 400 1 ends.

As Fig. 1, shown in Figure 5, the utility model is with condenser, evaporator assembly 30 is assembled respectively and is finished, just with capillary 40,400 connect, these spare parts (comprise condenser, the thin portion of evaporator assembly spare part) in the junction in advance intermediary be attached with the filler that alumina-base material constitutes, in order to do sending into after finishing in overall package more than the fusing point that the hard solder stove is heated to filler, filler can be melted infiltrates the place that is connected to each other, in order to do engaging by the compatible interface of congeniality, make this condenser, evaporator assembly 30 and two capillaries 40,400 each spare part junction hot melt link adherence are integral, constitute a loop heat-tube heat radiator according to this, make inner liquid, the vapour working fluid can produce one-way flow with when calorifying evaporator assembly 30, make liquid by capillary force effect absorption and by access port 326 inflow evaporator assemblies 30 latent heat constant intervals 323, this liquid is by first capillary 40, reverse osmosis core 325 utilizes the latent heat between the working fluid two-phase to change and removes a large amount of thermals source rapidly, and vaporization enter between the doab 324 through the pore of dividing plate 321, that continues flow to condenser by exit 327 and condenses, and so finishes the heat effect that moves of natural circulation.

The utility model condenser, evaporator assembly 30 and two capillaries 40,400 are owing to adopt full aluminium manufacturing, this aluminium valency is cheap far beyond the copper valency, cooperate the utility model can supply the structural design of one hard solder, and the hard solder temperature is lower again, less energy intensive, institute is so that the whole manufacturing cost of the utility model is more cheap far beyond commonly using, quite has market competitiveness, and by the structure particular arrangement of these condensers, evaporator assembly 30, it is applied in the loop heat-tube heat radiator, can reach the radiating effect of expection, make its cooling effectiveness be enough to provide the industry utilization.

In addition, the utility model condenser, evaporator assembly 30 and two capillaries 40,400 are owing to adopt the lighter aluminium material manufacturing of proportion, so overall weight reduces about 69% far beyond commonly using, alleviate the total weight of mobile computer now or other electronic product greatly, be enough to make this product to meet the lightweight market demand.

In sum, the utility model is in existing structure, can be described as not seen before, because this case has concentrated design, so have above-mentioned advantage, and be a quite outstanding and excellent design, it there is no similar utility model or disclosed delivering in like product, so meet the application important document of novel patent, be to file an application in the whence in accordance with the law.The above person of thought, it only is a preferred embodiment of the present utility model, when can not with the scope implemented of qualification the utility model, promptly the equalization of being done according to the utility model claim generally changes and modifies, and all should still belong in the scope that the utility model contains.

Claims (7)

1. the full aluminium radiator of loop hot-pipe is made up of condenser, aluminum evaporator assembly and aluminum two capillaries of aluminum, it is characterized in that:

Condenser wears radiating tube between fin forms, and this radiating tube has an input, an output so that working fluid cycles to be provided;

Evaporator assembly has an access port and an exit, and it removes the structure of a large amount of thermals source rapidly in having the latent heat variation that utilizes between the working fluid two-phase between access port and exit;

First capillary connects radiating tube output, evaporator assembly access port, second capillary then connects radiating tube input, evaporator assembly exit, and above-mentioned each spare part in the junction intermediary be attached with the filler of alumina-base material, this condenser, evaporator assembly and the relative junction of two capillaries hot melt link adherence are integral, to constitute a loop heat-tube heat radiator.

2. the full aluminium radiator of loop hot-pipe as claimed in claim 1, it is characterized in that: evaporator assembly can absorb the aluminum base that heat generating component produces heat by one, and the aluminum tubulose evaporation body of removing a large amount of thermals source by utilizing latent heat between the working fluid two-phase to change rapidly formed, and the access port of evaporator assembly and exit are arranged at the evaporation body respectively.

3. the full aluminium radiator of loop hot-pipe as claimed in claim 2 is characterized in that: pedestal is concaved with the arc groove for the involutory connection of evaporation body.

4. the full aluminium radiator of loop hot-pipe as claimed in claim 2, it is characterized in that: the evaporation body is provided with dividing plate in pore, and involutory respectively in two ends end cap arranged, make in the evaporation body and form between a latent heat constant interval, a doab, the involutory aluminum reverse osmosis core that ring-type is arranged of its latent heat constant interval, the dividing plate that is positioned at the reverse osmosis core then is provided with pore, and has provided access port in the end cap of latent heat constant interval, and the end cap between the doab then is provided with the exit;

Its first capillary, one end fit connects the radiating tube output, end inserts connection evaporator assembly access port and inserts reverse osmosis core mesopore in addition, as for second capillary, one end then fit connect the radiating tube input, end then inserts and connects the evaporator assembly exit in addition, make liquid by capillary force effect absorption and by access port inflow evaporator assembly latent heat constant interval, this liquid is by first capillary, the utilization of reverse osmosis core utilizes the latent heat between the working fluid two-phase to change and removes a large amount of thermals source rapidly, in order to do entering between the doab of vaporization through the dividing plate pore, that continues flow to condenser by the exit and condenses, and so finishes the heat effect that moves of natural circulation.

5. the full aluminium radiator of loop hot-pipe as claimed in claim 1, it is characterized in that: the punching out of fin end face has the assembly hole more than two, the assembly hole endoporus penetrates joint for the radiating tube external diameter, makes radiating tube be the assembly hole that is interspersed in each fin of continuous bend.

6. the full aluminium radiator of loop hot-pipe as claimed in claim 1, it is characterized in that: the fin end face stretches to other end face axial of fin along assembly hole the equal aperture and the concentric collar, this assembly hole penetrates for the radiating tube external diameter with collar endoporus and engages, and adjacent fin becomes to pile up the spacing setting by collar-shaped.

7. as claim 1 or the full aluminium radiator of 6 described loop hot-pipes, it is characterized in that: the other punching out of fin end face has guiding gutter, and to other end face projection of fin location edge is arranged along guiding gutter, and these adjacent fin are formed by location edge and pile up the spacing setting.

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