CN209232773U - Two-fluid self-circulating radiating device - Google Patents
Two-fluid self-circulating radiating device Download PDFInfo
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- CN209232773U CN209232773U CN201821717859.4U CN201821717859U CN209232773U CN 209232773 U CN209232773 U CN 209232773U CN 201821717859 U CN201821717859 U CN 201821717859U CN 209232773 U CN209232773 U CN 209232773U
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- radiating
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- heat
- circulating
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Abstract
The utility model relates to a kind of two-fluid self-circulating radiating devices, comprising: inside is equipped with the cavity of heating device；Radiating subassembly, including runner and radiating fin, circulation has the mixture of liquid metal and low boiling working fluid in the runner, and the runner has heat absorbing end and radiating end, the heat absorbing end is located at the inside of the cavity, and the radiating end and radiating fin are located at the outside of cavity.The utility model does not need driving device, and radiating module self-loopa, small in size, noiseless, high reliablity, it is circulated using the pressure difference driving liquid metal of working medium nonmetallic in runner, inside modules device heat is persistently exported at the radiating end of module outer wall, finally heat is distributed into equipment surrounding air, heat dissipation effect is significant, and every harsh environmental index such as be able to satisfy GJB150A vibration, high/low temperature, salt fog, is suitable for military equipment heat dissipation design.
Description
Technical field
The utility model belongs to technical field of heat dissipation, and in particular to one kind is capable of the two-fluid radiator of self-loopa.
Background technique
Currently, the integrated level and heat flow density of module are also being obviously improved with the raising of electronic functionalities, such as
Power module, power amplifier module, integration module etc..Particularly, for the chip of high heat flux density, if cannot take effective
Heat dissipation distributes the heat of chip effectively, will result in the reduction of its service life, chip is even burnt when serious.
Since weight, size, reliability requirement of most of military platforms for module are higher and higher, in particular, directly bearing height
When the harsh environments such as wet, high salt fog, mould, module require using closed structure design with external world's humidity, mould, salt fog air every
Absolutely.
Currently, traditional open forced air cooling is unable to satisfy harsh " three proofings " requirement of equipment, and use traditional liquid
Heating device need to be fixed on liquid cold plate by cold scheme, effectively take away heat by the liquid energy of flow.But traditional liquid cooling
The constraint of the required secondary cooling device space usually becomes its restrictive design factor, and traditional liquid cooling system is needed to pump and be driven
It is dynamic, while also bringing along energy consumption under low temperature and increasing, between traditional liquid cooling source and equipment the problem of piping connection.
To sum up, heat sinking technology is needed, it is inside modules device heat is lasting, quick, efficient to export to module outer wall
At radiating end, then the types of cooling such as natural heat dissipation, forced air cooling are taken to radiating end, heat is distributed to module surrounding air
In.
Utility model content
To solve the above-mentioned problems, the utility model provides the two-fluid of a kind of passive drive, small size, high reliability
Self-circulating radiating device.
To achieve the above object, the utility model provides a kind of two-fluid self-circulating radiating device, comprising:
Inside is equipped with the cavity of heating device；
Radiating subassembly, including runner and radiating fin, circulation has the mixed of liquid metal and low boiling working fluid in the runner
Object is closed, the runner has heat absorbing end and radiating end, and the heat absorbing end is located at the inside of the cavity, the radiating end and heat dissipation
Fin is located at the outside of cavity.
In one embodiment, the heat absorbing end is located at the bottom of the cavity, and the radiating end is located at the cavity
On side wall.
In one embodiment, the radiating fin has multiple and structure in the form of sheets, and multiple radiating fins are parallel to be consolidated
It is scheduled on the lateral wall of the cavity.
In one embodiment, the radiating end of the runner interts and is located in the radiating fin.
In one embodiment, the runner is rigid structure.
In one embodiment, the runner is designed with cavity in integral structure by way of monoblock cast.
In one embodiment, the runner is connected as one by way of whole welding with cavity.
In one embodiment, the liquid metal is gallium, mercury, the gallium base bianry alloy, gallium Quito being in a liquid state under room temperature
One of first alloy, gallium-base alloy, bismuth-base alloy, mercury-base alloy or Na-K alloy or multiple combinations.
In one embodiment, the low boiling working fluid is one of fluorination liquid, isopentane or isopropanol or a variety of groups
It closes.
Compared with the prior art, the advantages of the utility model are: (1), from driving, the utility model is not required to introduce any
Driving device, is expanded using low boiling working fluid or the pressure difference generated that gasifies drives liquid metal flows.(2) the utility model is not
Extraneous feed flow is needed to be not required to additional secondary cooling apparatus using two-fluid self-loopa heat dissipation design.(3) using monoblock cast or
Both runner and module cavity are connected as one by the processing methods such as welding, integrated design and manufacture, farthest reduce
Between thermal resistance, improve heat conduction efficiency.Wherein flow channel shape needs to design according to structure design；(4) liquid metal has remote
Higher than the thermal conductivity of water, air and many nonmetal mediums, therefore the relatively traditional water cooling of liquid metal heat radiation device can be realized more
Efficient heat transportation and limit heat-sinking capability；(5) low boiling working fluid by thermal evaporation phase transformation when absorb heat, condensing release heat
Amount.Liquid metal circulation cooling in runner is driven simultaneously.
Detailed description of the invention
Hereinafter the utility model will be described in more detail based on the embodiments and with reference to the accompanying drawings.Wherein:
Fig. 1 is the structure chart of the utility model radiator；
Fig. 2 is the circulation schematic diagram of liquid metal and low boiling working fluid mixed liquor in the utility model runner.
Identical component uses identical appended drawing reference in the accompanying drawings.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in further detail.Whereby to the utility model how application technology hand
Section solves technical problem, and the realization process for reaching technical effect can be fully understood and implemented.As long as it should be noted that
There is no conflict, items technical characteristic mentioned in the various embodiments be can be combined in any way.The utility model
It is not limited to specific embodiment disclosed herein, but is included all technical solutions falling within the scope of the claims.
Descriptions such as " bottoms " mentioned in the present embodiment are defined according to common meaning, for example, the direction of gravity
It is bottom, to be illustrated convenient for describing, rather than to limit the enforceable range of the utility model, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, also when being considered as the enforceable scope of the utility model.
Traditional liquid cooling heat radiation system recycles the coolant liquid (water or organic solution) in heat-dissipating pipe using pump and radiates,
Liquid metal has the thermal conductivity much higher than nonmetallic fluid, and the liquid metal theoretically flowed, which has, is much higher than nonmetallic fluid
Thermal conductivity, be a kind of heat sinking technology.But circulation cooling carried out using liquid metal and needed by driving device.It is existing
There is electromagnetic pump driven liquid metal in technology to radiate in runner internal circulation flow.
And the utility model then generates the spy of pressure change in conjunction with liquid metal high-efficiency heat conduction and low boiling working fluid heat absorption
Point provides a kind of two-fluid self-circulating radiating device, as shown in Figure 1, comprising: cavity 1 and radiating subassembly, wherein in cavity 1
Portion is equipped with heating device (not shown)；Radiating subassembly includes runner 2 and radiating fin 3；The runner 2 is the ring of sealing
Chamber, the interior circulation of the runner 2 have the mixture of liquid metal 4 and low boiling working fluid 5, and the runner 2 has heat absorbing end and heat dissipation
End, the heat absorbing end are located at the inside of the cavity 1, and the radiating end and radiating fin 3 are located at the outside of cavity 1.This is practical
The room temperature flowability of the novel vaporization mechanism based on low boiling working fluid 5 and liquid metal 4, utilizes the vaporization of low boiling working fluid 5
Latent heat absorbs the amount of heat of 1 internal heat generation device of cavity in heat absorbing end, while utilizing low boiling working fluid 5 and room temperature liquid metal 4
Mobility radiating end strengthen radiate.
According to the structure needs of heating device, 1 structure of cavity may be designed as the cavity-like structure of arbitrary shape, in the present embodiment
In, cavity 1 is in a rectangular parallelepiped shape；The shape and layout of runner 2 can also reasonably be designed according to the heat distribution situation in cavity 1,
The present embodiment as shown in Figure 2, the U-shaped structure of the heat absorbing end and the bottom for being located at the cavity 1, the radiating end is then by more
The U-tube of a connection forms and is located on the side wall of the cavity 1.In addition, in the present embodiment, the radiating end is perpendicular to institute
Heat absorbing end is stated, the low boiling working fluid 5 in the heat absorbing end of runner 2 is expanded or boiled under heat effect, the pressure in 2 pipe of runner
Power increases, and liquid metal 4 can be pushed to flow to radiating end；And the position of the radiating end is higher than the position of the heat absorbing end, because
This, after 5 heat release of low boiling working fluid, cooling at radiating end, 2 overpressure of runner is reduced, and low boiling working fluid 5 is under the effect of gravity
Circulating reflux forms the heat transportation system an of self-loopa to heat absorbing end.It should be noted that radiating end can also be with heat absorption
End is in parallel or other states.
Again as shown in Figure 1, in the present embodiment, the radiating fin 3 has multiple and structure in the form of sheets, multiple radiating fins
3 parallel are fixed on the lateral wall of the cavity 1.Preferably, the radiating end of the runner 2 interts and is located at the radiating fin
In piece 3.After liquid metal 4 transfers heat at the radiating fin 3 of radiating end, heat is distributed to chamber by radiating fin 3
In air around body 1.
In one embodiment, the runner 2 is the rigid structure of tubulose.Runner 2 by but be not limited to stainless steel, copper or titanium
The rigid material of alloy is made, the tubular structures such as described 2 circular in cross-section of runner.Preferably, the runner 2 is embedded in described
The inside of the body wall of cavity 1, in one embodiment, the runner 2 are in integral structure with cavity 1 by way of monoblock cast
Design.In one embodiment, the runner 2 is connected as one by way of whole welding with cavity 1.Integrated structure is set
Meter and manufacture farthest reduce the thermal resistance between runner 2 and cavity 1, improve heat conduction efficiency.The rigid structure of runner 2
Be conducive to be embedded in the body wall of cavity 1, on the one hand save space, be conducive to Miniaturization Design；Another party prevents 2 leakage of runner
Risk.
In one embodiment, the liquid metal 4 is gallium, mercury, the gallium base bianry alloy, gallium Quito being in a liquid state under room temperature
One of first alloy, gallium-base alloy, bismuth-base alloy, mercury-base alloy or Na-K alloy or multiple combinations.
In one embodiment, the low boiling working fluid 5 is the work for being fluorinated liquid, isopentane, isopropanol or other low boiling points
One of matter or multiple combinations.
In the following, the course of work of the utility model will be described in detail:
The heat that heating device inside cavity 1 generates is conducted to the heat absorbing end of runner 2, and the liquid metal 4 in runner 2 is inhaled
Heat is received, while low boiling working fluid 5 is expanded or boiled under heat effect, 2 internal pressure of runner increases, and pushes runner
Liquid metal 4 in 2 flow to radiating end.Liquid metal 4 transfers heat at the radiating fin 3 of radiating end, and heat distributes
Into module surrounding air, while low boiling working fluid 5 condenses heat release, the equal circulating reflux of two-fluid after cooling to heat absorbing end, shape
At a self-loopa heat transportation system.It recycles repeatedly, two-fluid continuously takes away heat from device, reaches drop
The effect of low device temperature.
The utility model devises a kind of two-fluid self-loopa, small size, noiseless, high reliability heat sinking module,
Driving device is not needed, is circulated using the pressure difference driving liquid metal 4 of nonmetallic working medium in runner 2, by inside modules
Device heat persistently exports at module outer wall radiating end, finally distributes heat into equipment surrounding air, and heat dissipation effect is aobvious
It writes, and is able to satisfy GJB150A (military hardware laboratory environment test method) vibration, high/low temperature, salt fog etc. items are harsh
Environmental index is suitable for military equipment heat dissipation design.
Although the utility model is described by reference to preferred embodiment as above, the content is intended merely to
The embodiment for being easy to understand the utility model and using is not intended to limit the utility model.Belonging to any the utility model
Technical staff in technical field can implement under the premise of not departing from spirit and scope disclosed in the utility model
Formal and details on make any modification and variation, but the scope of patent protection of the utility model, still must be with appended power
Subject to the range that sharp claim is defined.
Claims (9)
1. a kind of two-fluid self-circulating radiating device characterized by comprising
Inside is equipped with the cavity of heating device；
Radiating subassembly, including runner and radiating fin, the interior circulation of the runner have the mixture of liquid metal and low boiling working fluid,
The runner has heat absorbing end and radiating end, and the heat absorbing end is located at the inside of the cavity, the radiating end and radiating fin
Positioned at the outside of cavity.
2. two-fluid self-circulating radiating device according to claim 1, which is characterized in that the heat absorbing end is located at the chamber
The bottom of body, the radiating end are located on the side wall of the cavity.
3. two-fluid self-circulating radiating device according to claim 1, which is characterized in that the radiating fin has multiple
And structure in the form of sheets, multiple radiating fins are parallel to be fixed on the lateral wall of the cavity.
4. two-fluid self-circulating radiating device according to claim 1, which is characterized in that the radiating end of the runner is interspersed
And it is located in the radiating fin.
5. two-fluid self-circulating radiating device according to claim 1, which is characterized in that the runner is rigid structure.
6. two-fluid self-circulating radiating device according to claim 1, which is characterized in that the runner passes through monoblock cast
Mode and cavity in integral structure design.
7. two-fluid self-circulating radiating device according to claim 1, which is characterized in that the runner passes through whole welding
Mode is connected as one with cavity.
8. two-fluid self-circulating radiating device according to claim 1, which is characterized in that the liquid metal is under room temperature
Gallium, mercury, gallium base bianry alloy, gallium based multicomponent alloy, gallium-base alloy, bismuth-base alloy, mercury-base alloy or the Na-K alloy being in a liquid state
One of or multiple combinations.
9. two-fluid self-circulating radiating device according to claim 1, which is characterized in that the low boiling working fluid is fluorination
One of liquid, isopentane or isopropanol or multiple combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821717859.4U CN209232773U (en) | 2018-10-24 | 2018-10-24 | Two-fluid self-circulating radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821717859.4U CN209232773U (en) | 2018-10-24 | 2018-10-24 | Two-fluid self-circulating radiating device |
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| Publication Number | Publication Date |
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| CN209232773U true CN209232773U (en) | 2019-08-09 |
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| CN201821717859.4U Active CN209232773U (en) | 2018-10-24 | 2018-10-24 | Two-fluid self-circulating radiating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110943058A (en) * | 2019-10-30 | 2020-03-31 | 佛山科学技术学院 | Heat radiator |
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2018
- 2018-10-24 CN CN201821717859.4U patent/CN209232773U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110943058A (en) * | 2019-10-30 | 2020-03-31 | 佛山科学技术学院 | Heat radiator |
| CN110943058B (en) * | 2019-10-30 | 2021-11-30 | 佛山科学技术学院 | Heat radiator |
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