CN207800596U - A kind of combined heat radiating system - Google Patents
A kind of combined heat radiating system Download PDFInfo
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- CN207800596U CN207800596U CN201820313715.6U CN201820313715U CN207800596U CN 207800596 U CN207800596 U CN 207800596U CN 201820313715 U CN201820313715 U CN 201820313715U CN 207800596 U CN207800596 U CN 207800596U
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Abstract
The utility model embodiment provides a kind of combined heat radiating system, including：Temperature uniforming heat radiation device close to pyrotoxin and is internally provided with circulation loop, has the first low-melting-point metal in the circulation loop, liquid metal is converted into for absorbing the heat of the pyrotoxin；Phase-change heat radiating device is arranged above the temperature uniforming heat radiation device and is internally provided with cavity, and the second low-melting-point metal is equipped in the cavity, and second low-melting-point metal is the low-melting-point metal with solid-liquid phase change endothermic character；Driving device, for making the liquid metal in the circulation loop circulate.The combined heat radiating system that the utility model embodiment provides can solve the defect of radiator heat dissipation effect difference in the prior art, realize the purpose of high power, high efficiency and heat radiation.
Description
Technical field
The utility model embodiment is related to technical field of heat dissipation more particularly to a kind of combined heat radiating system.
Background technology
With the enhancing of computer computation ability, power consumption has become the problem of not allowing to avoid with heat dissipation problem.High temperature is not
But system operation can be caused unstable, reduced service life, it could even be possible to certain components is made to burn." thermal boundary " has become science
Boundary and industrial quarters all kinds of high-performance computers and photoelectric chip etc. further towards high-performance, high efficiency, lower temperature it is horizontal,
The target for being miniaturized or even being promoted energy saving quality promotes one of the main bottleneck met with.
Radiator is the indispensable important component of power electric component, although power electric component can be continuous
The technological innovation replacement is carried out, but the demand to heat dissipation will not change.From national policy to downstream power transmission and distribution, generation of electricity by new energy, rail
Road traffic, new-energy automobile industry vigorously support and the main trend of energy-saving and emission-reduction can be seen that the following downstream industry and will protect
Higher growing trend is held, the mating demand of radiator of corresponding electric power component will also maintain sustained and rapid growth.Consider automobile,
Demand of the fields such as mobile phone, PC and notebook, electric supply device, LED, ICT to radiator, at present China's work field radiator
Market scale is about 130,000,000,000 yuan or so.During " 13 ", it is (outstanding that radiator segments field such as cpu heat, automobile radiators
It is new-energy automobile field) and the application range in the fields such as ICT, electric power energy will continue to expand., it is expected that following several
Year, China's radiator industry will remain in the speedup of 7-10% or so under the drive in these subdivision fields, radiate by 2022
Device industry market capacity will be at 200,000,000,000 yuan or so.
The principle of radiator is by being contacted with heat generating components surface, absorbing heat, then by various methods pass heat
It is delivered in air, achievees the purpose that heat dissipation.Since electronics industry is constantly carrying out technological innovation, the demand to heat dissipation is increasingly
Height, however at present existing radiator cannot still reach ideal heat dissipation effect, it would be highly desirable to study a set of high power, high efficiency and heat radiation,
The cooling system of low cost.
Utility model content
The utility model embodiment provides a kind of combined heat radiating system, to solve radiator heat dissipation in the prior art
The defect of effect difference realizes high power, high efficiency and heat radiation.
The utility model embodiment provides a kind of combined heat radiating system, including：
Temperature uniforming heat radiation device close to pyrotoxin and is internally provided with circulation loop, low with first in the circulation loop
Melting point metals are converted into liquid for absorbing the heat of the pyrotoxin；
Phase-change heat radiating device is arranged above the temperature uniforming heat radiation device and is internally provided with cavity, set in the cavity
There is the second low-melting-point metal with solid-liquid phase change endothermic character；
Driving device, for making first low-melting-point metal circulate.
As a preferred embodiment, first low-melting-point metal is gallium, gallium indium, gallium indium tin, gallium-base alloy, bismuth-base alloy
In it is one or more.
As a preferred embodiment, second low-melting-point metal is in paraffin, bismuth indium tin, bismuth indium tin-lead, bismuthino metal
It is one or more.
As a preferred embodiment, the driving device includes at least two groups electromagnetic pump.
As a preferred embodiment, each electromagnetic pump includes the first magnet and the second magnet, and first magnet is set
Set in the temperature uniforming heat radiation device and be located at side of the circulation loop far from the phase-change heat radiating device, described second
Magnet is arranged in the cavity in the phase-change heat radiating device；First magnet and the second magnet are attracting by opposite pole
Form place.
As a preferred embodiment, each electromagnetic pump further includes the first electrode being connected to by conduct piece and the second electricity
Pole, the first electrode and second electrode are inserted into respectively in first low-melting-point metal.
As a preferred embodiment, the first electrode and second electrode distinguish external direct current power supply, the DC power supply
Supply current be 1A-500A.
As a preferred embodiment, the temperature uniforming heat radiation device and the phase-change heat radiating device are respectively insulator.
As a preferred embodiment, it is additionally provided with radiating fin on the phase-change heat radiating device.
The combined heat radiating system that the utility model embodiment provides, by regarding low-melting-point metal fluid as cooled flow
Working medium has high thermal conductivity, can quickly absorb hot junction converting heat to cold end, realize being uniformly distributed for heat, then pass through
The heat that low-melting-point metal with solid-liquid phase change endothermic character absorbs flow working medium carries out in flash heat transfer to extraneous air,
To realize efficient heat dissipation purpose.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the utility model combined heat radiating system embodiment fractionation structural representation；
Fig. 2 is the structural schematic diagram of temperature uniforming heat radiation device in Fig. 1；
Fig. 3 is the overlooking structure diagram of temperature uniforming heat radiation device in Fig. 1；
Fig. 4 is the overall structure diagram of the utility model combined heat radiating system embodiment.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The range of the utility model protection.
A kind of combined heat radiating system that the utility model embodiment provides, with reference to figure 1, including temperature uniforming heat radiation device 1, phase
Become radiator 2 and driving device 4.The temperature uniforming heat radiation device 1 is internally provided with circulation loop 11, has in the circulation loop 11
There is the first low-melting-point metal, liquid is converted into for absorbing the heat of the pyrotoxin；The setting of the phase-change heat radiating device 2 exists
The top of the temperature uniforming heat radiation device and it is internally provided with cavity 21, being equipped in the cavity 21 has solid-liquid phase change heat absorption special
Second low-melting-point metal of property,；The driving device 4 is used to make be converted into liquid described first in the circulation loop 11
Low-melting-point metal circulates.
Specifically, circulation loop 11 is the channel of a closed loop, and interior first low-melting-point metal that is full of is as cooled flow work
Matter can quickly become liquid after the heat absorption of the first low-melting-point metal, have high heat conductance, high latent heat, low-expansion coefficient, isometric phase
Become the big feature of latent heat.First low-melting-point metal of the temperature uniforming heat radiation device 1 in pyrotoxin, circulation loop 11 absorbs pyrotoxin
Neighbouring converting heat is liquid, and the first low-melting-point metal of liquid follows under the driving of driving device 4 in circulation loop 11
Circulation is dynamic, and heat is brought to cold end, even heat distribution is realized, to realize heat dissipation purpose.Phase-change heat radiating device 2 is arranged equal
On warm radiator 1, in cavity 21 in be full of the second low-melting-point metal, the second low-melting-point metal have solid-liquid phase change heat absorption
Characteristic is at room temperature solid-state, becomes liquid from solid-state after heat absorption, solid-state can be become again by liquid rapidly after cooling, is flowed when cooling
Matter of starting building flowing heat absorption, second low-melting-point metal in circulation loop 11 can absorb rapidly the heat of cooled flow working medium, and
Heat is transferred heat in air, realizes the effect of flash heat transfer, passes through the secondary of temperature uniforming heat radiation device 1 and phase-change heat radiating device 2
Cooling effect can realize high efficiency heat radiation.It should be noted that make heat dissipation effect reach best, it is new installing this practicality
When the combined heat radiating system of type, temperature uniforming heat radiation device 1 is contacted close to pyrotoxin or directly with pyrotoxin.
The combined heat radiating system that the utility model embodiment provides, by regarding low-melting-point metal fluid as cooled flow
Working medium has high thermal conductivity, can quickly absorb hot junction converting heat to cold end, realize being uniformly distributed for heat, then pass through
The heat that low-melting-point metal with solid-liquid phase change endothermic character absorbs cooled flow working medium carries out flash heat transfer to external sky
In gas, to realize efficient heat dissipation purpose.
First low-melting-point metal used in combined heat radiating system that the utility model embodiment provides is preferred
It is one or more in gallium, gallium indium, gallium indium tin, gallium-base alloy, bismuth-base alloy；Second low-melting-point metal is preferably stone
It is one or more in wax, bismuth indium tin, bismuth indium tin-lead, bismuthino metal.
A kind of preferred embodiment of the utility model, with reference to figure 1, the driving device 4 includes at least two groups electromagnetic pump.Electricity
Magnetic pumping be it is a kind of using the interaction of electric current in magnetic field and conductor fluid, so that fluid is generated pressure ladder by electromagnetic force
It spends, to push the pump of fluid motion, including a pair of opposing that can form field pole, a pair of of magnetic pole under the function of current
It is separately positioned on the both sides of circulation loop 11, cooled flow working medium circulation loop 11 in vertical with cooling Working fluid flow direction
(the first low-melting-point metal) is in two magnetic poles and is formed by between magnetic field, and cooling when be liquid metal to endothermic disintergration after is flowed
Matter of starting building be powered, cooled flow working medium can in magnetic field cutting magnetic field line, to realize circulating for cooled flow working medium.
A kind of preferred embodiment of the utility model, in the present embodiment, with reference to figure 1 and Fig. 2, each electromagnetic pump includes
First magnet 41 and the second magnet 42, the setting of the first magnet 41 is in the temperature uniforming heat radiation device 1 and is located at the cycle
The institute in the phase-change heat radiating device 2 is arranged in side of the circuit 11 far from the phase-change heat radiating device 2, second magnet 42
It states in cavity 21；First magnet, 41 and second magnet 42 is placed by the attracting form of opposite pole.
Specifically, with reference to figure 2, driving device 4 includes two groups of electromagnetic pumps, first magnet in the utility model embodiment
41 are arranged in 1 inside bottom of temperature uniforming heat radiation device, and circulation loop 11 is located at the middle part of the temperature uniforming heat radiation device 1, and first
Magnet 41 is located at the lower section of circulation loop 11；With reference to figure 1, phase-change heat radiating device 2 is the rectangular parallelepiped structure of a boring, hollow
Region is the cavity 21, and the second magnet 42 is arranged in 2 inside bottom of phase-change heat radiating device.First magnet 41 and second
Magnet 42 is placed by the attracting form of opposite pole；When multiple electromagnetic pumps are arranged, multiple magnet in temperature uniforming heat radiation device 1 are pressed
The form that like pole repels is placed, and multiple magnet in phase-change heat radiating device 2 are equally pressed the form that like pole repels and placed.
A pair of of magnetic pole of electromagnetic pump is separately positioned in temperature uniforming heat radiation device 1 and phase-change heat radiating device 2, compact-sized, easy to implement small
Type reduces production cost, and system is reliable and stable, and heat dissipation performance is stablized, and service life is long.
In order to enable electromagnetic pump to work normally, setting positive and negative anodes are also needed.In the utility model embodiment, with reference to figure 3, each
The electromagnetic pump further includes the first electrode 43 being connected to by conduct piece 45 and second electrode 44, the first electrode 43 and second
Electrode 44 is inserted into the circulation loop 11 and is contacted with first low-melting-point metal respectively, first electrode 43 and second electrode 44
Between by conduct piece 45 be connected to formed conducting circuit.The first electrode 43 and second electrode 44 distinguish external direct current
Source powers to electromagnetic pump, and the supply current of the DC power supply is preferably 1A-500A.
In order to not influence the flowing of the first low-melting-point metal normal circulation and the phase transition process of the second low-melting-point metal,
Warm radiator 1 and phase-change heat radiating device 2 are respectively adopted insulating materials and are made, and can be the insulators such as organic glass, fiberglass
Either formed by intermetallic composite coatings such as stainless steel, aluminium, the copper of surface insulation processing.
A kind of preferred embodiment of the utility model in the present embodiment, with reference to figure 1, is also set on the phase-change heat radiating device 2
There is radiating fin 3.Radiating fin 3 carries out heat convection with air, and the heat that heat source generates is distributed into extraneous air, radiates
Fin 3 can increase heat transfer area, further increase radiating efficiency.
Fig. 4 shows that the integral installation figure of the utility model embodiment, temperature uniforming heat radiation device 1, dissipate phase-change heat radiating device 2
About 3 hot fin is installed successively, and is fixed to form integral device by the mounting hole of both sides 5, which, which can be placed in, leans on
The place of nearly pyrotoxin is directly contacted with pyrotoxin, realizes heat dissipation purpose.
A kind of combined heat radiating system of the utility model embodiment, it is special using the thermal conduction characteristic of low-melting-point metal, electromagnetism
Property and decalescence characteristic, by the first low-melting-point metal in temperature uniforming heat radiation device 1 electromagnetic pump driving under along runner
It circulates, the even heat that the central heat source contacted with temperature uniforming heat radiation device 1 distributes is sprawled, recycle phase-change heat radiating device
Second of the low-melting-point metal solid-liquid phase change endothermic character held in 2 inner cavity 21 quickly absorbs heat, radiating fin 3 and sky
Gas heat convection, thus by the heat transfer of phase-change heat radiating device 2 to surrounding air.Three layers of the compound of heat dissipation are realized to heat source
The absorption of heat is controlled with temperature, realizes high power, high efficiency heat radiation.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacement；And these modifications or replacements, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (9)
1. a kind of combined heat radiating system, which is characterized in that including：
Temperature uniforming heat radiation device close to pyrotoxin and is internally provided with circulation loop, has the first low melting point in the circulation loop
Metal is converted into liquid for absorbing the heat of the pyrotoxin；
Phase-change heat radiating device is arranged above the temperature uniforming heat radiation device and is internally provided with cavity, tool is equipped in the cavity
There is the second low-melting-point metal of solid-liquid phase change endothermic character；
Driving device, for making first low-melting-point metal circulate.
2. combined heat radiating system according to claim 1, which is characterized in that first low-melting-point metal is gallium, gallium
It is one or more in indium, gallium indium tin, gallium-base alloy, bismuth-base alloy.
3. combined heat radiating system according to claim 1, which is characterized in that second low-melting-point metal be paraffin,
It is one or more in bismuth indium tin, bismuth indium tin-lead, bismuthino metal.
4. combined heat radiating system according to claim 1, which is characterized in that the driving device includes at least two groups electricity
Magnetic pumping.
5. combined heat radiating system according to claim 4, which is characterized in that each electromagnetic pump includes the first magnet
With the second magnet, first magnet is arranged in the temperature uniforming heat radiation device and positioned at the circulation loop far from the phase
Become the side of radiator, second magnet is arranged in the cavity in the phase-change heat radiating device；First magnetic
Iron and the second magnet are placed by the attracting form of opposite pole.
6. combined heat radiating system according to claim 5, which is characterized in that each electromagnetic pump further includes by leading
The first electrode and second electrode of electric part connection, the first electrode and second electrode are inserted into first low-melting-point metal respectively
In.
7. combined heat radiating system according to claim 6, which is characterized in that the first electrode and second electrode difference
The supply current of external direct current power supply, the DC power supply is 1A-500A.
8. according to claim 1-7 any one of them combined heat radiating systems, which is characterized in that the temperature uniforming heat radiation device and
The phase-change heat radiating device is respectively insulator.
9. according to claim 1-7 any one of them combined heat radiating systems, which is characterized in that on the phase-change heat radiating device
It is additionally provided with radiating fin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820313715.6U CN207800596U (en) | 2018-03-07 | 2018-03-07 | A kind of combined heat radiating system |
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| CN201820313715.6U CN207800596U (en) | 2018-03-07 | 2018-03-07 | A kind of combined heat radiating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183094A (en) * | 2018-03-07 | 2018-06-19 | 中国科学院理化技术研究所 | A kind of combined heat radiating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183094A (en) * | 2018-03-07 | 2018-06-19 | 中国科学院理化技术研究所 | A kind of combined heat radiating system |
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