CN102833987A - Internal balance type gas-liquid phase change cooling device - Google Patents
Internal balance type gas-liquid phase change cooling device Download PDFInfo
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- CN102833987A CN102833987A CN2012103175390A CN201210317539A CN102833987A CN 102833987 A CN102833987 A CN 102833987A CN 2012103175390 A CN2012103175390 A CN 2012103175390A CN 201210317539 A CN201210317539 A CN 201210317539A CN 102833987 A CN102833987 A CN 102833987A
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Abstract
The invention discloses an internal balance type gas-liquid phase change cooling device. The key points of the technical scheme are as follows: the internal balance type gas-liquid phase change cooling device comprises an evaporator for absorbing the heat produced by an electronic element by using a liquid cooling agent and evaporating the cooling agent to a gas state, a heat exchanger for cooling the cooling agent flowing out from the evaporator under the radiating effect and converting the cooling agent to a liquid state, and an internal balancing device placed in the heat exchanger, wherein the internal balancing device is communicated with a gas-liquid channel in the heat exchanger. Compared with the prior art, the internal balance type gas-liquid phase change cooling device has the following advantages of high heat exchange efficiency, simple structure and low cost; compared with a traditional liquid cooling component scheme, the weight is reduced by 30% and the cost is lowered by over 50% based on the same radiating efficiency and the same power.
Description
Technical field
The present invention relates to the heat dissipation technology field, particularly a kind of inner equilibrium formula liquid-gas phase transition device that utilizes heat pipe principle to come the cool electronic heater element.
Background technology
Heating is the great difficult problem that the electronic component development faces.Because the temperature in parts when operation is high more, it just breaks down more easily, and high temperature can influence electronic product useful life simultaneously.Along with the electronic product caloric value is increasing, the product overall weight is required also more and more stricter.There is various ways in the cooling device of heat-generating electronic elements at present; But just realize the process of cooling off or pass through alternate manner realization cooling usually through simple liquid-gas phase transition; Yet for some relatively more accurate expensive electronic component; Usually the operational environment that needs a constant temperature, and common cooling device can reach the effect of cooling, but can't be implemented in the process of cooling off under the condition of internal environment constant temperature.
Summary of the invention
It is high that the technical problem that the present invention solves has provided a kind of rate of heat exchange, inner equilibrium formula liquid-gas phase transition cooling device simple in structure, with low cost, that independence is portable and interior pressure is constant.
Technical scheme of the present invention is: a kind of inner equilibrium formula liquid-gas phase transition cooling device is characterized in that: described inner equilibrium formula liquid-gas phase transition cooling device comprises that liquid coolant capable of using absorbs the heat that produces from electronic component and makes refrigerant evaporates become the evaporator of gaseous state; Make the heat exchanger of its liquefy when can cool off through thermolysis from the cooling agent that evaporator flows out; With the inner equilibrium device that is placed on heat exchanger inside, this inner equilibrium device communicates with the inner gas-liquid channel of heat exchanger.
Evaporator of the present invention is the housing that has the inner passage and be cube structure; 2 ~ 99 integral braze-welded forming of parallel channels are adopted in the inner passage; One side of passage is a cecum, and the other end communicates with heat exchanger, and the upper surface of described evaporator or lower surface and electronic heating element are close to.
Heat exchanger of the present invention is the housing that has the inner passage and be cube structure; 2 ~ 99 integral braze-welded forming of parallel channels are adopted in the inner passage; The input of gaseous coolant and the output of liquid coolant are carried out in the inner passage; Passage adopts the flat tubular construction of concurrent flow, is evenly equipped with rectangular opening on the cross section of flat channel, and the import and export of passage communicate with evaporator and inner equilibrium device respectively.The outside of heat exchanger passages of the present invention is fixed together blower fan and heat exchanger core through screw.Upwards flow from the flat channel rectangular opening during gaseous coolant input, liquid coolant flows downward along four wedge angle capillarities of rectangular opening after the blower fan cooling, constitutes a circulatory system.
Inner equilibrium device of the present invention comprises housing, front pressuring plate, diaphragm and spring; Described front pressuring plate is the demountable structure that adopts screw to connect, and an end of described spring is fixed on the front pressuring plate, and the other end and diaphragm are fixed; One end of said diaphragm openings is fixed between front pressuring plate and the housing; Seal with housing, the chamber that this diaphragm is connected with spring one side communicates with external environment condition, and the opposite side chamber communicates with heat exchanger.
Cooling agent of the present invention can be freon, water or ethanol.
The present invention compared with prior art has the following advantages: heat exchanger effectiveness is high, and simple in structure, cost is low.Be in particular in: one, in light weight, compact conformation, cost is low, processing is simple; Two, heat conduction and heat diffusion capabilities are high, solve effectively that electronic component power is big, heat dissipation capacity is big, the problem that local temperature is too high; Three, independent portable, do not need to be connected with other system, seldom need maintenance; Four, adopt inner equilibrium formula adjusting device, keep system pressure, can keep the cold drawing surface temperature constant at certain value.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 is the structural representation of inner equilibrium device of the present invention.
Embodiment
Describe embodiment in detail in conjunction with accompanying drawing.A kind of inner equilibrium formula liquid-gas phase transition cooling device comprises that liquid coolant capable of using absorbs the heat that produces from electronic component and makes refrigerant evaporates become the evaporator 2 of gaseous state; Make the heat exchanger 3 of its liquefy when can cool off through thermolysis from the cooling agent that evaporator flows out; With the inner equilibrium device 4 that is placed on heat exchanger inside, this inner equilibrium device 4 communicates with heat exchanger 3 inner gas-liquid channels 6.Described cooling agent can be freon, water or ethanol.Described evaporator 2 is the housings that have the inner passage and be cube structure; 2 ~ 99 integral braze-welded forming of parallel channels are adopted in the inner passage; One side of passage is a cecum, and the other end communicates with heat exchanger 3, and the upper surface of described evaporator 2 or lower surface and electronic heating element 1 are close to.Described heat exchanger 3 is the housings that have inner passage 6 and be cube structure; 2 ~ 99 integral braze-welded forming of parallel channels are adopted in inner passage 6; The input of gaseous coolant and the output of liquid coolant are carried out in inner passage 6; Passage 6 adopts the flat tubular construction of concurrent flow, is evenly equipped with rectangular opening on the cross section of flat channel 6, and the import and export of passage 6 communicate with evaporator 2 and inner equilibrium device 4 respectively.The outside of heat exchanger passages 6 of the present invention is fixed together blower fan 5 and heat exchanger 3 core bodys through screw.Upwards flow from the flat channel rectangular opening during gaseous coolant input, liquid coolant flows downward along four wedge angle capillarities of rectangular opening after the blower fan cooling, constitutes a circulatory system.
Operation principle of the present invention is: when the electronic component of being close to vaporising device produces heat; Pass to the liquid coolant in the evaporator through heat conduction, after liquid coolant absorbs the heat vaporization, get into heat exchanger through the inner passage; In the heat exchanger inner passage; Through being installed in the outside blower fan of heat exchanger it is cooled off, become liquid coolant, flow back to evaporator through four jiaos of capillarities in the heat exchanger inner passage through the cooling gaseous coolant; Carry out heat exchange once more, circulate next time.And cooling agent becomes the gaseous state formula by liquid state in system, and system pressure will become greatly, becomes big for preventing system pressure; Influence the evaporation ends evaporating temperature; The spy has increased the inner equilibrium device on condensate and heat exchanger top, and when system pressure increased, compression diaphragm and spring outwards moved.
In one embodiment of the invention, the inner equilibrium device is made up of housing, front pressuring plate, diaphragm and spring, is installed in the condensate and heat exchanger shell of 150mm * 240mm * 80mm, communicates with the inner gas-liquid channel of condensate and heat exchanger.Compare with traditional liquid cooling assembly scheme, under the situation of same radiating efficiency and power, weight saving 30%, price reduces more than 50%.
Claims (6)
1. inner equilibrium formula liquid-gas phase transition cooling device is characterized in that: described inner equilibrium formula liquid-gas phase transition cooling device comprises that liquid coolant capable of using absorbs the heat that produces from electronic component and makes refrigerant evaporates become the evaporator of gaseous state; Make the heat exchanger of its liquefy when can cool off through thermolysis from the cooling agent that evaporator flows out; With the inner equilibrium device that is placed on heat exchanger inside, this inner equilibrium device communicates with the inner gas-liquid channel of heat exchanger.
2. inner equilibrium formula liquid-gas phase transition cooling device according to claim 1; It is characterized in that: described evaporator is the housing that has the inner passage and be cube structure; 2 ~ 99 integral braze-welded forming of parallel channels are adopted in the inner passage; One side of passage is a cecum, and the other end communicates with heat exchanger, and the upper surface of described evaporator or lower surface and electronic heating element are close to.
3. inner equilibrium formula liquid-gas phase transition cooling device according to claim 1; It is characterized in that: described heat exchanger is the housing that has the inner passage and be cube structure; 2 ~ 99 integral braze-welded forming of parallel channels are adopted in the inner passage, and the input of gaseous coolant and the output of liquid coolant are carried out in the inner passage, and passage adopts the flat tubular construction of concurrent flow; Be evenly equipped with rectangular opening on the cross section of flat channel, the import and export of passage communicate with evaporator and inner equilibrium device respectively.
4. inner equilibrium formula liquid-gas phase transition cooling device according to claim 3, it is characterized in that: the outside of described heat exchanger passages is fixed together blower fan and heat exchanger core through screw.
5. inner equilibrium formula liquid-gas phase transition cooling device according to claim 1; It is characterized in that: described inner equilibrium device comprises housing, front pressuring plate, diaphragm and spring; Described front pressuring plate is the demountable structure that adopts screw to connect, and an end of described spring is fixed on the front pressuring plate, and the other end and diaphragm are fixed; One end of said diaphragm openings is fixed between front pressuring plate and the housing; Seal with housing, the chamber that this diaphragm is connected with spring one side communicates with external environment condition, and the opposite side chamber communicates with heat exchanger.
6. inner equilibrium formula liquid-gas phase transition cooling device according to claim 1 is characterized in that: described cooling agent can be freon, water or ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103175390A CN102833987A (en) | 2012-08-31 | 2012-08-31 | Internal balance type gas-liquid phase change cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103175390A CN102833987A (en) | 2012-08-31 | 2012-08-31 | Internal balance type gas-liquid phase change cooling device |
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| CN102833987A true CN102833987A (en) | 2012-12-19 |
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| CN2012103175390A Pending CN102833987A (en) | 2012-08-31 | 2012-08-31 | Internal balance type gas-liquid phase change cooling device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005180815A (en) * | 2003-12-19 | 2005-07-07 | Sanyo Electric Co Ltd | Cooling device |
| CN101013011A (en) * | 2007-02-05 | 2007-08-08 | 中山大学 | Multiple-pass self-regulating loop heat pipe device |
| CN101807084A (en) * | 2010-04-01 | 2010-08-18 | 常州江南电力环境工程有限公司 | Point-to-point constant temperature device |
-
2012
- 2012-08-31 CN CN2012103175390A patent/CN102833987A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005180815A (en) * | 2003-12-19 | 2005-07-07 | Sanyo Electric Co Ltd | Cooling device |
| CN101013011A (en) * | 2007-02-05 | 2007-08-08 | 中山大学 | Multiple-pass self-regulating loop heat pipe device |
| CN101807084A (en) * | 2010-04-01 | 2010-08-18 | 常州江南电力环境工程有限公司 | Point-to-point constant temperature device |
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Application publication date: 20121219 |