TW201407041A - Dual-phase change circulation type water cooling module and its use method - Google Patents

Abstract

A dual-phase change circulation type water cooling module and its use method are provided. The module includes a heat collecting body, a heat dissipating body, an air guiding pipe, a liquid guiding pipe, and a heat dissipating medium, wherein the internal of the heat collecting body is provided with a first air-liquid coexisting area, the internal of the heat dissipating body is provided with a second air-liquid coexisting area higher than or equal to that of the heat collecting body; the air guiding pipe is connected between the heat collecting body and the heat dissipating body so as to form an air channel, the liquid guiding pipe is connected between the heat collecting body and the heat dissipating body so as to form a liquid channel, and the heat dissipating medium is filled therein. When in use, the heat dissipating medium is vaporized by heating in the heat collecting body and moves to the heat dissipating body, and is cooled down in the heat dissipating body for returning to liquid state and moves back to the heat collecting body, such that a closed circulation loop is formed to effectively dissipate heat.

Description

Two-phase change circulating water cooling module and using method thereof

This case belongs to the field of heat dissipation equipment for electronic devices, especially a two-phase variable circulation water-cooling module that uses liquid phase and gas phase to achieve rapid heat dissipation and its use method.

According to the current computer or electronics industry, a large number of processing chips, such as central processing units and graphics chips, or other processing chips such as north and south bridges, are used, and the integration density is increasing and the operating frequency is increasing. Fast, the heat energy generated during operation is also increased, also known as heating elements. Since these heating elements may cause abnormal operation when the operating temperature is too high, and even burn out may occur, in order to effectively reduce the heat, various heat dissipating devices appear on the market. Tightly attached to the heat-absorbing surface of the heating elements to assist in heat dissipation by conduction, convection or radiation to keep the heating elements operating at normal operating temperatures.

Generally, the most common heat dissipating device is made by various heat processing metals (such as aluminum or copper), which is composed of a base, a plurality of heat dissipating fins and a cooling fan, and the base is closely contacted with the base. After the heating element, the heat energy is directly transmitted to the heat dissipating fins, and the surface is thermally convected with the outside air, thereby dissipating the heat energy to the outside. Or a heat pipe is combined with a heat pipe to fill the closed body. There is a heat-dissipating medium in the liquid state, the main component of the heat-dissipating medium is water, and the rest is composed of a special component capable of increasing the heat transfer capability of the liquid. One end of the heat pipe is an evaporation end and is in contact with the heating element, so as to absorb the heat thereof, so that the heat dissipation medium absorbs heat and evaporates into a gaseous state, and moves to the condensation end of the other end of the heat pipe to dissipate heat, thereby forming A closed heat-dissipating cycle, and the heat-dissipating medium can be used to take away a large amount of heat at a time, thereby achieving the purpose of improving heat dissipation efficiency. In addition, there is also a water-cooling heat-dissipating module that uses only liquid circulation heat dissipation, which uses a circulating pump to drive a heat-dissipating liquid (usually water) which is large in heat and absorbs heat, and simultaneously absorbs heat when flowing through the heating element, and The flow of the heat-dissipating liquid is used to carry heat away from the heat-generating component, and heat is discharged between the pipelines or the water storage tanks to achieve the purpose of dissipating heat.

However, the above various heat sinks or water-cooled heat sink modules have their own shortcomings in use. The most common problem is that they are limited by space, and their use efficiency is not good. Especially for the heating element with large heat generation, how to increase the thermal conduction area or heat dissipation area of the heat sink or the water-cooling heat dissipation module under the space-limited condition, and utilize the heat convection effect (Heat Convection) In order to effectively improve the efficiency of heat dissipation, it has always been the goal of various manufacturers.

In view of the above, an object of the present invention is to provide a two-phase change circulating water cooling module, which is disposed on a heat collector and a heat sink. The gas-liquid two-phase change between a heat-dissipating medium can quickly dissipate a large amount of heat with the design of the pipeline.

A second object of the present invention is to provide a two-phase change circulating water-cooling module, in which a piping design between the heat collecting body and the heat dissipating body is used to change the volume of the heat when the two-phase change is performed. At the same time, the biggest change effect can be made according to the space.

In order to achieve the above object, the two-phase change circulating water-cooling module of the present invention is mounted on a heating element to dissipate heat, and includes: a heat collecting body having a first gas-liquid coexistence zone therein, and the first The gas-liquid coexistence zone is formed with at least one gas outlet and at least one liquid inlet on the surface of the heat collector; a heat sink having a height higher than or equal to the heat collector, and the heat dissipation system is provided with a second gas-liquid coexistence zone And the second gas-liquid coexistence zone is formed with at least one air inlet and at least one liquid outlet on the heat dissipating body; at least one air guiding pipe is connected at one end to the air outlet, and the other end is connected to the air inlet And using the air guiding tube to form a gas passage between the heat collecting body and the heat dissipating body; at least one liquid guiding tube has one end connected to the liquid outlet and the other end connected to the liquid inlet; Using the liquid guiding tube to form a liquid passage between the heat collecting body and the heat dissipating body; and a heat dissipating medium which is in a liquid state and is filled in the first gas-liquid coexistence zone and/or the second in a set amount In the gas-liquid coexistence zone, the heat dissipating medium is vaporized after the heat collector is heated The gaseous state enters the heat dissipating body through the gas passage, and is cooled in the heat dissipating body to become liquid again. The heat dissipating medium is driven by the volume change of the phase change and gravity, etc. Returning to the heat collector through the liquid passage. Wherein, the vaporization point of the heat dissipation medium at normal temperature and pressure is between 30 ° C and 68 ° C.

The heat dissipation system is a heat dissipation water tank, and includes the second gas-liquid coexistence zone and a plurality of heat dissipation fins, and the heat dissipation fins are wrapped around the heat dissipation body.

In one embodiment, the two-phase change circulating water-cooling module of the present invention further has at least one heat-dissipating fan disposed on the heat-dissipating body, and can accelerate the dispersal of the heat-dissipating body by means of forced air intake. Heat.

In an embodiment, the diameter of the air guiding tube is greater than or equal to the diameter of the liquid guiding tube, which can facilitate the smooth return of the heat dissipating medium to the liquid collector when it returns to a liquid state.

In order to meet different usage conditions, the two-phase change circulating water cooling module of the present invention also has a corresponding structural design. Wherein, when the heating element is a central processing unit, the heat dissipation system is disposed above the heat collecting body, and the air guiding tube and the liquid guiding tube are disposed on the heat dissipating body and the heat collecting body . Or when the heat generating component is a central processing unit, the heat dissipating system is disposed on one side of the heat collecting body and at the same height, and the air guiding pipe and the liquid guiding pipe are respectively disposed on the heat dissipating body and the set The two sides of the hot body. Or when the heat generating component is a graphic processor, the heat dissipating system is disposed on one side of the heat collecting body and higher than the position of the heat collecting body, and the air guiding pipe and the liquid guiding pipe are respectively disposed in the heat dissipation The body and the two sides of the collector. The above various embodiments are based on the space to produce the largest change effect, for the scattered Thermal efficiency can also help.

Still another object of the present invention is to provide a method for using a two-phase change circulating water cooling module, which can improve the heat dissipation efficiency when used.

In order to achieve the above object, the method for using the two-phase change circulating water-cooling module comprises: providing the two-phase change circulating water-cooling module; and providing the heat collector on a surface of the heat-generating component; The heat dissipating medium absorbs the heat generated by the heat generating component and vaporizes into a gaseous state, and enters the heat dissipating body through the liquid guiding tube; the heat dissipating body is used to dissipate heat, and the heat dissipating medium is cooled to a temperature below the vaporization point to become a liquid; By using the volume change of the phase change of the heat-dissipating medium and the pushing of gravity, etc., the liquid-collecting tube is returned to the heat-collecting body to form a stable heat-dissipating cycle.

In an embodiment, in order to improve the heat dissipation efficiency, in the step of using the heat sink to dissipate heat, and the heat dissipation medium is cooled to a temperature below the vaporization point to become a liquid state, a forced cooling method is further used. The heat sink is dissipated more quickly, and the forced cooling means uses at least one heat dissipating fan to blow the heat sink for forced cooling.

In order for your review board to have a clear understanding of the contents of the present invention, please refer to the following description.

First embodiment

Please refer to Figures 1, 2, 3 and 4 for the first embodiment of the present invention. The structural diagram and installation diagram of the example, as well as the state diagram and step flow chart of the use. As shown in the figure, the two-phase change circulating water-cooling module 1 of the present invention is used for mounting a heat-generating component 2 to dissipate heat. In the first embodiment, the heat-generating component 2 is a central processing unit. The two-phase change circulating water-cooling module 1 of the present invention comprises a heat collecting body 11, a heat radiating body 12, a pair of air guiding tubes 13, a liquid guiding tube 14, and a heat dissipating medium 15.

The heat collector 11 is a rectangular block structure, and a first gas-liquid coexistence zone 111 is disposed inside the heat collector 11 , and the first gas-liquid coexistence zone 111 is formed on the surface of the heat collector 11 . There is a pair of air outlets 1111 and a liquid inlet port 1112. The pair of air outlets 1111 are provided on the top surface of the heat collector 11, and the liquid inlet 1112 is disposed on one side of the heat collector 11. Further, a fixing hole 112 is defined in each of the four corners of the heat collecting body 11 to fix a fixing component 113 on the heating element 2, so that the heat collecting body 11 and the heat generating component 2 are completely closely attached. Synthetic.

The heat dissipating body 12 is also a rectangular block structure body, and is disposed vertically above the heat collecting body 11. The second heat and liquid coexistence area 121 is disposed inside the heat dissipating body 12, and the second gas-liquid coexistence area 121 is provided. A pair of air inlets 1211 and a liquid outlet 1212 are formed on the heat sink 12. As shown in the figure, the heat dissipating body 12 is a heat dissipating water tank, and includes the second gas-liquid coexistence area 121 and a plurality of heat dissipating fins 122, and the heat dissipating fins 122 are coated on the second Outside the gas-liquid coexistence zone 121, the fins 122 are intersystem It is spaced apart from and parallel to the arrangement of the heat collector 11. It should be noted that a heat dissipating fan 123 is disposed on one side of the heat dissipating body 12 so that the airflow of the heat dissipating fan 123 can pass through the heat dissipating fins 122 to blow the heat laterally.

One end of each of the air guiding tubes 13 is connected to each of the air outlets 1111, and the other end is connected to each of the air inlets 1211, so that each of the air guiding tubes 13 is vertically erected on the heat collecting body 11, and The gas channel 131 is formed on the bottom surface of the heat sink 12 and penetrates the air guiding tube 13 to form a gas passage 131 between the heat collecting body 11 and the heat sink 12 .

One end of the liquid guiding tube 14 is connected to the liquid outlet 1212, and the other end is connected to the liquid inlet 1112, so that one end of the liquid guiding tube 14 is connected to the side of the heat collecting body 11 and the other end is connected. A liquid passage 141 is formed between the heat collector 11 and the heat sink 12 on the top surface of the heat sink 12 .

The vaporization point of the heat dissipating medium 15 is a liquid substance having a vaporization point of 30 ° C to 68 ° C at normal temperature and pressure, and therefore is liquid at room temperature and is filled in the first gas-liquid coexistence area at a set amount. 111 and/or the second gas-liquid coexistence zone 121. It should be noted that the diameter of the air guiding tube 13 is greater than or equal to the diameter of the pair of liquid guiding tubes 14 due to the volume change of the heat dissipating medium 15 when the phase change occurs.

When using, please refer to the methods of using the two-phase change circulating water-cooling module 1 as shown in Figures 3 and 4, the steps of which include:

S1: Providing the two-phase change circulating water cooling module 1.

S2: The heat collector 11 is disposed on the surface of the heat generating component 2. The heat generated by the heat generating element 2 is directly conducted into the heat collector 11.

S3: The heat dissipating medium 15 in the heat collecting body 11 absorbs heat generated by the heat generating component 2 to be vaporized into a gaseous state, and enters the heat sink 12 through the liquid guiding tube 13. The heat dissipating medium 15 is heated in the first gas-liquid coexistence region of the heat collector 11 to be vaporized into a gaseous state, and the heat dissipating medium 15 in the gaseous state passes through the gas passage 131 to enter the second portion of the heat dissipating body 12 . The gas-liquid coexistence zone 121 is inside.

S4: The heat dissipating body 12 is used to dissipate heat, and the heat dissipating medium 15 is cooled to a temperature below the vaporization point to become a liquid. The heat dissipating fins 15 can be re-turned into a liquid state by the heat dissipating fins 122 increasing the heat dissipating area and lowering the temperature of the heat dissipating medium 15 below the vaporization point.

S5: Use forced cooling to make the heat sink dissipate heat more quickly. The forced cooling means can quickly reduce the temperature of the heat dissipating medium 15 in the heat sink 12 to below the vaporization point after the air is forcedly blown by the heat radiating fan 123, and the heat dissipating medium 15 can be changed to a liquid state again.

S6: using the volume change of the phase change of the heat dissipating medium 15 and the pushing of gravity, etc., and returning to the heat collecting body 12 through the liquid guiding tube 14 to form a stable heat dissipation cycle. Therefore, the heat dissipating medium 15 in a liquid state is returned to the heat collecting body 11 through the liquid passage 141 under the influence of volume change and gravity or the like when the phase changes. Inside to form a closed heat-dissipating cycle.

Second embodiment

Furthermore, please refer to Figures 5, 6, and 7 for a schematic view of the structure and installation of the second embodiment of the present invention, and a schematic diagram of the state of use thereof. As shown in the figure, the two-phase variable circulation water-cooling module 3 of the second embodiment of the present invention also includes a heat collecting body 31, a heat radiating body 32, a pair of air guiding tubes 33, a liquid guiding tube 34 and a The heat dissipating medium 35 is also a central processing unit. When used in an integrally formed computer main unit (ALL IN ONE), the heat collecting body 31 is fixed in the same manner as in the previous embodiment. The heat generating element 4 is disposed on one side of the heat collecting body 31 and at the same height, and the pair of air guiding tubes 33 and the liquid guiding tube 34 are respectively disposed on the heat radiating body 32 and the set. On the two sides of the heat body 31, the heat dissipation medium 35 is filled in the heat collector 31 and/or the heat sink 32.

It should be noted that the heat dissipating body 32 is also a heat dissipating water tank, and can be extended to the outside of a casing (not shown) by the pair of air guiding tubes 33 and the liquid guiding tube 34, and the heat dissipating body 32 is internally The second gas-liquid coexistence zone 321 and the plurality of heat dissipation fins 322 are disposed inside the second gas-liquid coexistence zone 321 . Accordingly, the heat generating element 4 is dissipated by the same manner as the first embodiment, and thus will not be described again. Or a cooling fan can be added for forced cooling, which is not shown in the figure.

Third embodiment

Furthermore, please refer to Figures 8, 9, and 10 for a schematic view of the structure and installation of the third embodiment of the present invention, and a schematic diagram of the state of use thereof. As shown in the figure, the dual-phase change circulating water-cooling module 5 of the third embodiment of the present invention also includes a heat collecting body 51, a heat radiating body 52, an air guiding tube 53, a liquid guiding tube 54, and a heat dissipating medium. 55, and the heat generating component 6 is a GPU, the heat sink 52 is disposed on one side of the heat collecting body 51 to form a horizontally stacked state, and the position of the heat sink 52 is higher than the In the position of the heat collecting body 51, the air guiding tube 53 and the liquid guiding tube 54 are disposed on the heat dissipating body 52 and the heat collecting body 51, and the heat dissipating medium 55 is filled in the heat collecting body 51 and/or Or in the heat sink 52. The method of use is the same as that of the first embodiment. Therefore, a heat dissipation fan 56 is added to one side of the heat sink 52 to forcibly dissipate the heat sink 52 to further improve the heat dissipation efficiency.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the practice of the present invention, and other embodiments of the present invention, or equivalent or easy changes in the art. Equivalent changes and modifications made without departing from the spirit and scope of the invention are intended to be included within the scope of the invention. However, the two-phase variable circulation water-cooling module of the present invention has the creative requirements of the invention patent and the use value of the industry; the applicant applies for the invention patent to the bureau in accordance with the provisions of the patent law.

[First Embodiment]

1‧‧‧Two-phase change circulating water cooling module

11‧‧‧Heads

111‧‧‧First gas-liquid coexistence zone

1111‧‧‧ gas outlet

1112‧‧‧Inlet

112‧‧‧Fixed holes

113‧‧‧Fixed components

12‧‧‧ Heat sink

121‧‧‧Second gas-liquid coexistence zone

1211‧‧‧ inlet

1212‧‧‧ liquid outlet

122‧‧‧Heat fins

123‧‧‧ cooling fan

13‧‧‧ air duct

131‧‧‧ gas passage

14‧‧‧ catheter

141‧‧‧Liquid channel

15‧‧‧heating medium

2‧‧‧heating components

S1~S6‧‧‧Steps

[Second embodiment]

3‧‧‧Two-phase change circulating water cooling module

31‧‧‧ Collector

32‧‧‧ Heat sink

321‧‧‧Second gas-liquid coexistence zone

322‧‧‧heat fins

33‧‧‧ air duct

34‧‧‧ catheter

35‧‧‧Heat dissipating medium

4‧‧‧heating components

[Third embodiment]

5‧‧‧Two-phase change circulating water cooling module

51‧‧‧Heads

52‧‧‧ Heat sink

521‧‧‧Second gas-liquid coexistence zone

522‧‧‧Heat fins

53‧‧‧ air duct

54‧‧‧ catheter

55‧‧‧Dissipating medium

56‧‧‧ cooling fan

6‧‧‧heating components

Fig. 1 is a schematic view showing the structure of a first embodiment of the present invention.

Fig. 2 is a schematic view showing the mounting of the first embodiment of the present invention.

Fig. 3 is a view showing the state of the first embodiment of the present invention when it is used.

Figure 4 is a flow chart showing the steps of the method of use in the first embodiment of the present invention.

Figure 5 is a schematic view showing the structure of a second embodiment of the present invention.

Figure 6 is a schematic view showing the installation of the second embodiment of the present invention.

Fig. 7 is a view showing the state of the second embodiment of the present invention when it is used.

Figure 8 is a schematic view showing the structure of a third embodiment of the present invention.

Figure 9 is a schematic view showing the mounting of the third embodiment of the present invention.

Fig. 10 is a view showing the state of the third embodiment of the present invention when it is used.

1‧‧‧Two-phase change circulating water cooling module

11‧‧‧Heads

111‧‧‧First gas-liquid coexistence zone

1111‧‧‧ gas outlet

1112‧‧‧Inlet

112‧‧‧Fixed holes

113‧‧‧Fixed components

12‧‧‧ Heat sink

1211‧‧‧ inlet

1212‧‧‧ liquid outlet

122‧‧‧Heat fins

123‧‧‧ cooling fan

13‧‧‧ air duct

131‧‧‧ gas passage

14‧‧‧ catheter

141‧‧‧Liquid channel

2‧‧‧heating components

Claims (11)

A two-phase change circulating water-cooling module is installed in a heating element to dissipate heat, comprising: a heat collecting body, wherein a first gas-liquid coexistence zone is disposed inside, and the first gas-liquid coexistence zone is in the set The heat body surface is formed with at least one air outlet and at least one liquid inlet; a heat sink having a height higher than or equal to the heat collector, the heat dissipation system is provided with a second gas-liquid coexistence zone, and the second gas liquid The coexistence zone has at least one air inlet and at least one liquid outlet formed on the heat dissipating body; at least one air guiding pipe is connected at one end to the air outlet, and the other end is connected to the air inlet, and the air guiding tube is formed by using the air guiding tube. a gas passage between the heat collecting body and the heat dissipating body; at least one liquid guiding tube, one end of which is connected to the liquid outlet, and the other end of which is connected to the liquid inlet, and the liquid guiding tube is used to form the a liquid passage between the heat collector and the heat sink; and a heat dissipating medium which is in a liquid state and is filled in the first gas-liquid coexistence zone and/or the second gas-liquid coexistence zone by a set amount, The heat dissipating medium vaporizes into a gaseous state after the heat collector is heated, and passes through the gas passage The channel enters the heat dissipating body, and is cooled in the heat dissipating body to become liquid again. The heat dissipating medium is pushed by the volume change of the phase change, gravity, etc., and then returns to the heat collecting body through the liquid channel. Bi-phase change circulating water as described in claim 1 The cooling module, wherein the heat dissipation system is a heat dissipation water tank, and includes the second gas-liquid coexistence zone and a plurality of heat dissipation fins, the heat dissipation fins being wrapped around the heat dissipation body. The two-phase change circulating water-cooling module according to claim 1, wherein the heat-dissipating medium has a vaporization point of 30 ° C to 68 ° C under normal temperature and normal pressure. The two-phase change circulating water-cooling module according to claim 1, further comprising at least one heat dissipating fan disposed on the heat dissipating body for accelerating the dissipating heat of the heat dissipating body. The two-phase change circulating water-cooling module according to claim 1, wherein the air pipe has a pipe diameter greater than or equal to a pipe diameter of the pipe. The two-phase change circulating water cooling module according to claim 1, wherein when the heating element is a central processing unit, the heat dissipation system is disposed above the heat collecting body, and the air guiding tube and the guiding unit The liquid pipe system is disposed on the heat dissipating body and the two sides of the heat collecting body. The two-phase change circulating water-cooling module according to claim 1, wherein when the heat-generating component is a central processing unit, the heat dissipation system is disposed on one side of the heat collector and at the same height, The air guiding tube and the liquid guiding tube are disposed on two sides of the heat dissipating body and the heat collecting body. The two-phase change circulating water-cooling module according to claim 1, wherein when the heating element is a graphic processor, the heat dissipation system is disposed on one side of the heat collector and higher than the heat collector. The air guiding tube and the liquid guiding tube are disposed on two sides of the heat dissipating body and the heat collecting body. A method for using the two-phase change circulating water-cooling module according to claim 1, comprising: providing the two-phase change circulating water-cooling module; and providing the heat collector on a surface of the heat-generating component; The heat dissipating medium in the heat collecting body absorbs the heat generated by the heat generating component to be vaporized into a gaseous state, and enters the heat dissipating body through the liquid guiding tube; the heat dissipating body is used to dissipate heat, and the heat dissipating medium is cooled to below the vaporization point temperature. And becoming a liquid; and using the volume change of the phase change of the heat dissipating medium and the pushing of gravity, etc., and returning to the heat collector through the liquid guiding tube to form a stable heat dissipation cycle. In the method of using the heat dissipation method, the heat dissipation medium is used to cool the heat dissipation medium to a temperature below the vaporization point to become a liquid state, a forced cooling method is further used to Allow the heat sink to dissipate heat more quickly. The method of using the method of claim 10, wherein the forced cooling means uses at least one heat dissipating fan to blow the heat sink to cool down.