CN113891611A - Working medium driving mechanism and heat dissipation device - Google Patents

Abstract

The invention relates to the technical field of heat dissipation equipment, in particular to a working medium driving mechanism and a heat dissipation device. The working medium driving mechanism includes a pusher and an excitation device, the pusher can expand and contract, and the pusher is used to be arranged in the circulation pipeline of the heat sink; the excitation device is used to excite the expansion and contraction of the pusher, so as to pass the expansion and contraction of the pusher. The contraction pushes the working fluid in the circulation pipeline. The pusher of the working medium driving mechanism provided by the embodiment of the present invention can expand and contract. When the pusher is arranged in the circulation pipeline of the heat dissipation device, the expansion and contraction of the pusher can be excited by the excitation device to push the circulation pipeline. The working medium circulates in the inside, the structure and control of the working medium driving mechanism are relatively simple, the heat generated by the working medium driving mechanism is less, and the pusher is arranged in the circulation pipeline, so that the application of the present invention is used. The heat dissipation device with mass circulation flow is compact in size.

Description

A working fluid drive mechanism and heat sink

technical field

The invention relates to the technical field of heat dissipation equipment, in particular to a working medium driving mechanism and a heat dissipation device.

Background technique

At present, the rapid development of computer technology and space technology has put forward a large number of high heat flux density heat dissipation requirements for electronic equipment and components, such as CPU, GPU, laser altimeter, CCD camera, spectrometer, etc. In addition, many power electronic devices or power equipment also face the problem of high power and high heat flow, such as high power LEDs, concentrating solar cells, high power laser chips, IGBT electrical conversion modules, X-ray tubes, motors, etc., high performance cooling The development of technology is an important prerequisite to ensure the safe and efficient operation of these devices and equipment and the development of higher performance. The existing heat dissipation device mainly includes a circulating pipeline and a working medium driving mechanism, the circulating pipeline is filled with working medium, and the working medium driving mechanism is used to drive the working medium to circulate in the circulating pipeline, so as to pass through the circulating working medium belt. To dissipate the heat of the radiated components, the working fluid driving mechanisms used in the existing cooling devices are usually circulating pumps, electromagnetic pumps, etc. These working fluid driving mechanisms are not only complicated in structure, but also generate a lot of heat during operation. It will affect the heat dissipation efficiency of the heat sink.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a working fluid driving mechanism and a heat dissipation device, which are used to solve or partially solve the problem that the working fluid drive mechanism used in the existing heat dissipation device has a complex structure and generates a large amount of heat during operation.

An embodiment of the present invention provides a working fluid drive mechanism, including:

a pusher, which can be expanded and contracted, and the pusher is used to be arranged in the circulation pipeline of the heat dissipation device; and,

An excitation device is used to excite the pusher to expand and contract, so as to push the working fluid in the circulation pipeline through the expansion and contraction of the pusher.

According to an embodiment of the present invention, a plurality of the pushing members and the excitation device are provided in a one-to-one correspondence, and the plurality of the pushing members are arranged along the extending direction of the circulation pipeline.

According to an embodiment of the present invention, the pusher is provided with an expansion chamber, the expansion chamber has an expansion state and a contraction state, and the excitation device is used to excite the expansion chamber in one of the expansion state and the contraction state. switch between to allow the pusher to expand and contract.

According to an embodiment of the present invention, the excitation device is a filler supply device, the filler supply device communicates with the expansion chamber, and is used for adding filler into the expansion chamber and extracting the filler in the expansion chamber. filler; or,

The expansion cavity is filled with filler, the excitation device is a heating device, and the heating device is arranged in the expansion cavity to heat the filler in the expansion cavity.

According to an embodiment of the present invention, the filler is air or absolute ethanol.

According to an embodiment of the present invention, the material of the pushing member is rubber.

According to an embodiment of the present invention, the expansion chamber is open, and the opening edge of the expansion chamber is used for connecting with the inner sidewall of the circulation pipeline, so as to be sealed by the inner sidewall of the circulation pipeline The opening of the expansion chamber is covered to close the expansion chamber.

According to an embodiment of the present invention, the pushing member is provided in a bowl shape; and/or,

The excitation device is a heating device, and the excitation device is arranged to be fixed on the inner side wall of the circulation pipeline used to seal and cover the opening of the expansion chamber.

According to an embodiment of the present invention, the working medium driving mechanism further includes a controller, and the controller is electrically connected to the excitation device.

The embodiment of the present invention also provides a heat dissipation device, including:

circulation lines; and,

The working medium driving mechanism is the above-mentioned working medium driving mechanism, and the pushing member of the working medium driving mechanism is arranged in the circulation pipeline.

According to an embodiment of the present invention, the circulation pipeline includes a cooling section and a heat conduction section, wherein:

The pusher is located between the cooling section and the heat conducting section; and/or,

The heat dissipation device further includes a cooling mechanism provided corresponding to the cooling section, and the cooling mechanism is used to cool the cooling section; and/or,

The cooling section is bent back and forth to extend; and/or,

The heat-conducting segment is provided with a heat-conducting member for thermally conducting connection with the heat-dissipating member.

According to an embodiment of the present invention, a one-way valve is provided on the circulation pipeline.

According to an embodiment of the present invention, the circulating pipeline is filled with a liquid metal working medium or a liquid metal mixed working medium, wherein the liquid metal mixed working medium includes liquid metal and non-metallic liquid.

According to an embodiment of the present invention, the liquid metal includes at least one of a gallium-based alloy and a bismuth-based alloy; the non-metallic liquid includes at least one of an electrolyte, anhydrous ethanol, and isopentane.

The embodiment of the present invention further provides a control method of the above-mentioned working medium driving mechanism, wherein the pushing member of the working medium driving mechanism includes a first pushing member and a second pushing member, and correspondingly, the working medium driving mechanism has a The excitation device includes a first excitation device and a second excitation device, and the control method includes:

Under the condition that the first pusher is expanded and the second pusher is contracted, the driving process of the working medium driving mechanism is cyclically executed;

Wherein, the driving process of the working medium driving mechanism includes:

controlling the second excitation device to expand the second pusher;

controlling the first exciter to retract the first pusher;

The first exciter and the second exciter are controlled to expand the first pusher and contract the second pusher.

The pushing member of the working medium driving mechanism provided by the embodiment of the present invention can expand and contract. When the pushing member is arranged in the circulation pipeline of the heat dissipation device, the expansion and contraction of the pushing member can be excited by the excitation device, so as to push the circulation pipeline. The working medium circulates in the inside, the structure and control of the working medium driving mechanism are relatively simple, the heat generated by the working medium driving mechanism is less, and the pusher is arranged in the circulation pipeline, so that the application of the present invention is used. The heat dissipation device with mass circulation flow is compact in size, and can be suitable for heat dissipation of devices with high space requirements such as notebook computers.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a heat dissipation device of the present invention;

FIG. 2 is a schematic structural diagram of the working fluid drive mechanism in FIG. 1 , wherein the first pusher expands and the second pusher contracts;

FIG. 3 is a schematic structural diagram of the working fluid drive mechanism in FIG. 1 , wherein the first pusher is contracted and the second pusher is expanded;

4 is a flowchart of an embodiment of a control method for a working fluid drive mechanism of the present invention;

DESCRIPTION OF REFERENCE NUMERALS: heat sink 100, working medium driving mechanism 1, pusher 11, first pusher 11a, second pusher 11b, expansion chamber 111, excitation device 12, first excitation device 12a, second excitation device 12b , the controller 13 , the circulation pipeline 2 , the cooling section 21 , the heat conducting section 22 , the cooling mechanism 3 , and the heat conducting member 4 .

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The embodiment of the present invention provides a working fluid driving mechanism, which can be applied to a heat sink, and the working fluid drive mechanism can drive the working fluid to circulate in the circulation pipeline of the heat sink. As shown in FIG. 1 to FIG. The mass drive mechanism 1 includes a pusher 11 and an excitation device 12 .

As shown in FIG. 1 to FIG. 2 , the pusher 11 can expand and contract, and the pusher 11 is arranged in the circulation pipeline 2 of the heat dissipation device 100 . When the working fluid driving mechanism 1 is applied to the heat sink 100, the pusher 11 is disposed in the circulation pipeline 2 of the heat sink 100, wherein the pusher 11 can be fixed to the inner side wall of the circulation line 2 by bonding or the like. superior.

There are many ways to realize the expansion and contraction of the pusher 11. For example, the pusher 11 can be made of a material that can expand and contract, such as an expansion alloy; it can also be as shown in FIG. 11 is provided with an expansion cavity 111, and the expansion cavity 111 has an expanded state and a contracted state. At this time, the pusher 11 is usually made of elastic materials such as rubber. Air or other gas, filling can also be water and other liquid), the pusher 11 will expand, and when the filling in the expansion cavity 111 of the pusher 11 is extracted, the pusher 11 will shrink.

The pusher 11 can be provided with an expansion cavity 111 to realize the expansion and contraction of the pusher 11. There are many ways for the pusher 11 to set the expansion cavity 111. form a closed cavity, the closed cavity is the expansion cavity 111; it can also be shown in FIG. When the pusher 11 is arranged in the circulation pipe 2, the open edge of the expansion chamber 111 is connected to the inner side wall of the circulation pipe 2, so as to seal and expand through the inner side wall of the circulation pipe 2. The opening of the cavity 111 is used to close the expansion cavity 111, so that a closed cavity is formed by enclosing the pushing member 11 and the inner wall of the circulation pipeline 2, which not only simplifies the structure of the pushing member 11, but also simplifies the structure of the pushing member 11. The wall is provided with a communication hole to connect the closed cavity with the outside world, the communication hole can be arranged on the inner side wall of the circulation pipeline 2, and the communication hole is arranged on the inner side wall of the circulation pipeline 2 compared to the communication hole provided on the pusher 11. Connecting holes would be more convenient.

As shown in FIG. 2 and FIG. 3 , the excitation device 12 can excite the pusher 11 to expand and contract, so as to push the working fluid in the circulation pipeline 2 through the expansion and contraction of the pusher 11 . However, the excitation device 12 can excite the pusher 11 to expand and contract, so the excitation device 12 needs to be set corresponding to the setting method of the pusher 11 . Specifically, as shown in FIG. 2 and FIG. 3 , in this embodiment, the pusher The expansion chamber 111 is provided with an expansion chamber 111, and the expansion chamber 111 has an expansion state and a contraction state. The excitation device 12 is used to activate the expansion chamber 111 to switch between the expansion state and the contraction state, so as to make the pusher 11 expand and contract.

The excitation device 12 can excite the expansion chamber 111 to switch between the expansion state and the contraction state. The excitation device 12 can be set in various ways. For example, the excitation device 12 can be a filler supply device, and the filler supply device communicates with the expansion chamber 111 , used to add fillers into the expansion chamber 111 and extract the fillers in the expansion chamber 111, wherein the filler can be a gas such as air, or a liquid such as water; it can also be shown in Figure 2 and Figure 3, in In this embodiment, the expansion cavity 111 is filled with filler, the excitation device 12 is a heating device (the heating device can be an electric heating wire, an electric heating pipe, etc.), and the heating device is arranged in the expansion cavity 111 to heat the expansion cavity 111 The filler, wherein the filler is air or a low-boiling liquid, for example, in this embodiment, the filler is anhydrous ethanol.

The excitation device 12 can be a heating device arranged in the expansion chamber 111. As described above, the expansion chamber 111 is open and the opening edge of the expansion chamber 111 is connected to the inner side wall of the circulation pipeline 2, so as to pass the circulation The inner side wall of the pipeline 2 is sealed to cover the opening of the expansion chamber 111 to close the expansion chamber 111, so the excitation device 12 can be arranged on the pusher 11 or on the inner side wall of the circulation pipeline 2, specifically, as shown in FIG. 2 As shown in FIG. 3 , in this embodiment, the excitation device 12 is a heating device, and the excitation device 12 is arranged to be fixed on the inner side wall of the circulation pipeline 2 used to seal and cover the opening of the expansion chamber 111 , so as to facilitate The excitation device 12 is installed, and a thermal insulation layer can also be arranged between the excitation device 12 and the inner wall of the circulation pipeline 2 to prevent the heat generated by the excitation device 12 from being conducted to the inner wall of the circulation pipeline 2, for example, the excitation device 12 can be bonded to the inner side wall of the circulation pipeline 2 by means of thermal insulation glue.

The working medium driving mechanism 1 excites the pushing member 11 to expand and contract through the exciting device 12, so as to push the working medium to circulate and flow in the circulation pipeline 2. Generally, as shown in FIGS. 1 to 3, the working medium driving mechanism 1 also includes The controller 13 is electrically connected to the excitation device 12 , so that the working medium driving mechanism 1 can control the excitation device 12 through the controller 13 to excite the pusher 11 to expand and contract. The working medium driving mechanism 1 may include one or more push members 11 . For example, there are multiple push members 11 and the excitation device 12 corresponding to one-to-one. When the plurality of push members 11 are arranged in the circulation pipeline 2 , the plurality of pushing members 11 are arranged along the extending direction of the circulation pipeline 2, and by setting the plurality of pushing members 11, the working fluid driving mechanism 1 can provide a larger driving force. As shown in FIG. 2 and FIG. 3 , there are two pushers 11 and two excitation devices 12 correspondingly. The two pushers 11 include a first pusher 11a and a second pusher 11b, and the first pusher 11a and the second pusher The element 11b is filled with anhydrous ethanol, and the two excitation devices 12 include a first excitation device 12a and a second excitation device 12b, and the first excitation device 12a and the second excitation device 12b are used to push the first pusher 11a and the second excitation device 12b, respectively. The heating device for heating the anhydrous ethanol in the second pusher 11b, when the temperature in the first pusher 11a and the second pusher 11b exceeds the boiling point of the anhydrous ethanol, the anhydrous ethanol is vaporized, the volume expands, and the first Once the pusher 11a and the second pusher 11b will expand; and when the heating temperature is lower than its boiling point, the anhydrous ethanol will liquefy and shrink in volume, and the first pusher 11a and the second pusher 11b will shrink. Taking the two corresponding pushing members 11 and the excitation device 12 as an example, the working principle of the working fluid driving mechanism 1 is introduced:

In the first step, the controller 13 controls the first excitation device 12a to expand the first pusher 11a, and the first pusher 11a presses the working medium in the circulation pipeline 2 toward the second excitation device 12b in the direction of the arrow in FIG. 2;

In the second step, the controller 13 controls the second excitation device 12b to expand the second pusher 11b, so as to disconnect the working fluid in the circulation pipeline 2;

In the third step, the controller 13 controls the first excitation device 12a to shrink the first pusher 11a, and the working medium on the side of the first pusher 11a away from the second excitation device 12b flows to the first excitation device 12a, as shown in FIG. 3 . ;

In the fourth step, the controller 13 controls the first exciter 12a to expand the first pusher 11a, and at the same time controls the second exciter 12b to shrink the second pusher 11b;

Then, the above-mentioned second to fourth steps are executed cyclically, and the working medium in the circulation pipeline 2 can be driven to circulate in the direction of the arrows in FIG. 2 and FIG. 3 .

The pusher 11 of the working fluid driving mechanism 1 provided in the embodiment of the present invention can expand and contract. When the pusher 11 is arranged in the circulation pipeline 2 of the heat dissipation device 100, the pusher 11 can be excited by the excitation device 12 to expand and contract. The structure and control of the working medium driving mechanism 1 are relatively simple, the heat generated by the working medium driving mechanism 1 is less, and the pushing member 11 is arranged in the circulation In the pipeline 2, the heat dissipation device 100 using the working fluid circulating flow 1 of the present application is compact in size, and can be suitable for heat dissipation of devices with high space requirements such as notebook computers.

The embodiment of the present invention also provides a heat dissipation device. As shown in FIG. 1 , the heat dissipation device 100 includes a working fluid driving mechanism 1 and a circulation pipeline 2 .

As shown in FIG. 2 and FIG. 3 , the pusher 11 of the working fluid driving mechanism 1 is arranged in the circulating pipeline 2 , and the circulating pipeline 2 is filled with working fluid. The working fluid driving mechanism 1 can drive the working fluid in the circulating pipeline 2 . 2 internal circulation flow.

In order to ensure that the working medium only circulates clockwise or counterclockwise in one direction in the circulation pipeline 2, in this embodiment, the circulation pipeline 2 is provided with a one-way valve (not shown in the figure). Specifically, one or more one-way valves may be provided. For example, two one-way valves may be provided on the circulation pipeline 2, and the two one-way valves are located in the extending direction of the working medium driving mechanism 1 in the circulation pipeline 2. It can also be that when there are multiple pushers 11 along the extension direction of the circulation pipeline 2, a plurality of one-way valves are provided corresponding to the multiple pushers 11, so that each pusher 11 is placed in the circulation pipeline. A one-way valve is provided on both sides in the extension direction of 2. The location of the one-way valve on the circulation pipeline 2 can be set according to actual requirements, for example, the one-way valve can be arranged near the pusher 11 .

The circulating pipeline 2 is filled with a working medium, and the working medium can be water or the like. Specifically, in this embodiment, the circulating pipeline 2 is filled with a liquid metal working medium or a liquid metal mixed working medium, wherein the liquid metal is a metal material such as a gallium-based alloy or a bismuth-based alloy with a melting point of less than 300° C., and, The liquid metal may be composed of a single metal material or a mixture of multiple metal materials. For example, the liquid metal working medium may be a gallium indium alloy liquid metal with a melting point of 15.6°C. The liquid metal mixed working fluid is composed of liquid metal and non-metallic liquid, and the non-metallic liquid includes at least one of low boiling point working fluids such as electrolyte, absolute ethanol, isopentane, etc. For example, the liquid metal mixed working fluid can be 11 A liquid metal mixed working medium composed of gallium indium tin alloy liquid metal and n-butane at ℃. The heat dissipation device 100 uses liquid metal or liquid metal mixed working medium as the heat dissipation working medium for heat dissipation. Since the thermal conductivity of liquid metal is more than an order of magnitude higher than that of water, the heat dissipation device 100 can obtain higher heat dissipation efficiency and is suitable for high power and high heat flow. Density heat dissipation occasions.

Generally, as shown in FIG. 1 , the circulation pipeline 2 includes a cooling section 21 and a heat-conducting section 22, and the heat-conducting section 22 is used for thermal conduction with the component to be radiated (in this embodiment, the heat-conducting section 22 is provided with a heat-conducting section 22 for connecting with the component to be radiated). The heat-conducting member 4 that is thermally conductively connected to the heat-dissipating member, wherein the heat-conducting member 4 and the heat-dissipating device may be in direct contact; the contact may also be made through a thermal interface material. grease contact), the working fluid in the circulation pipeline 2 will flow to the cooling section 21 for cooling after absorbing the heat of the heat-dissipating components in the heat-conducting section 22 (in this embodiment, the heat-dissipating device 100 also includes a corresponding cooling section 21 . Cooling mechanism 3, the cooling mechanism 3 is used to cool the cooling section 21, wherein the cooling mechanism 3 can adopt air cooling, water cooling or other cooling forms), and the cooled working medium can circulate and flow to the heat conduction section 22 to continue to absorb the radiated components of heat.

The shapes of the cooling section 21 and the heat-conducting section 22 can be set according to actual needs. Both the cooling section 21 and the heat-conducting section 22 can be straight tubes extending along a straight line, or polyline tubes extending along a folded line, etc., as shown in the figure As shown in Fig. 1, in this embodiment, the cooling section 21 is bent and extended back and forth, and the cooling section 21 is configured as a serpentine tube that is bent back and forth, which can increase the heat dissipation area.

As shown in FIG. 1 , the pusher 11 is located between the cooling section 21 and the heat conducting section 22 . In this way, it can be avoided that the heat of the dissipated parts and the cooling mechanism 3 affect the pusher 11 .

The embodiment of the present invention also provides a method for controlling the working medium driving mechanism as described above, wherein the pushing member of the working medium driving mechanism includes a first pushing member and a second pushing member, correspondingly, an excitation device of the working medium driving mechanism It includes a first excitation device and a second excitation device, the first excitation device is used to excite the expansion and contraction of the first pusher, the first excitation device is used to excite the expansion and contraction of the first pusher, and the second excitation device is used to excite the second The pusher expands and contracts, as shown in Figure 4, in this embodiment, the control method includes the following steps:

Step S110 , controlling the first excitation device to expand the first pushing member.

Specifically, in this embodiment, the initial states of the first push member and the second push member are both contracted, and the working medium driving mechanism controls the first excitation device and the second excitation device through the controller to respectively The first pusher and the second pusher are expanded and contracted.

After step S110, the controller will cyclically execute the driving process of the working fluid driving mechanism, and the driving process of the working fluid driving mechanism includes:

Step S120 , controlling the second excitation device to expand the second pushing member.

Step S130, controlling the first excitation device to shrink the first pusher;

Step S140, controlling the first exciter and the second exciter, so that the first pusher is expanded and the second pusher is contracted.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. A working medium drive mechanism, comprising:

the pushing piece can expand and contract and is used for being arranged in a circulating pipeline of the heat dissipation device; and the number of the first and second groups,

and the excitation device is used for exciting the pushing piece to expand and contract so as to push the working medium in the circulating pipeline through the expansion and contraction of the pushing piece.

2. The working medium driving mechanism according to claim 1, further comprising a controller electrically connected to the excitation device; and/or the presence of a gas in the gas,

the pushing pieces and the excitation devices are arranged in a one-to-one correspondence mode, and the pushing pieces are arranged along the extending direction of the circulating pipeline.

3. Working medium drive mechanism according to claim 1, characterized in that the pusher is provided with an expansion chamber having an expanded state and a contracted state, the activating means being adapted to activate the expansion chamber to switch between the expanded state and the contracted state for expanding and contracting the pusher.

4. Working medium driving mechanism according to claim 3, characterized in that the excitation device is a filler supply device, which is in communication with the expansion chamber for adding and extracting filler into and from the expansion chamber; or,

the expansion cavity is filled with filler, the excitation device is a heating device, and the heating device is arranged in the expansion cavity and used for heating the filler in the expansion cavity.

5. Working medium driving mechanism according to claim 4, characterized in that the filler is air or absolute ethyl alcohol; and/or the presence of a gas in the gas,

the pushing piece is made of rubber.

6. The working medium driving mechanism according to claim 3, wherein the expansion chamber is open, and an open edge of the expansion chamber is connected with an inner side wall of the circulation pipeline to hermetically cover an opening of the expansion chamber through the inner side wall of the circulation pipeline so as to close the expansion chamber.

7. A heat dissipating device, comprising:

a circulation line; and the number of the first and second groups,

the working medium driving mechanism is as claimed in any one of claims 1 to 6, and a pushing piece of the working medium driving mechanism is arranged in the circulating pipeline.

8. The heat dissipating device of claim 7, wherein said circulation line comprises a cooling section and a heat conducting section, wherein:

the pushing piece is positioned between the cooling section and the heat conducting section; and/or the presence of a gas in the gas,

the heat dissipation device also comprises a cooling mechanism arranged corresponding to the cooling section, and the cooling mechanism is used for cooling the cooling section; and/or the presence of a gas in the gas,

the cooling section is bent and extended back and forth; and/or the presence of a gas in the gas,

the heat conducting section is provided with a heat conducting piece for heat conduction with a device to be cooled.

9. The heat dissipation device of claim 7, wherein the circulation pipeline is filled with a liquid metal working medium or a liquid metal mixed working medium, wherein the liquid metal mixed working medium comprises a liquid metal and a non-metal liquid.

10. The heat dissipating device of claim 9, wherein the liquid metal comprises at least one of a gallium-based alloy, a bismuth-based alloy; the non-metal liquid comprises at least one of electrolyte, absolute ethyl alcohol and isopentane.

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