CN216017518U

CN216017518U - Submerged cooling system

Info

Publication number: CN216017518U
Application number: CN202121577164.2U
Authority: CN
Inventors: 洪银树; 李明聪; 简玮谦
Original assignee: Sunonwealth Electric Machine Industry Co Ltd
Current assignee: Sunonwealth Electric Machine Industry Co Ltd
Priority date: 2021-07-05
Filing date: 2021-07-12
Publication date: 2022-03-11
Anticipated expiration: 2031-07-12
Also published as: TW202304280A; TWI772092B

Abstract

The utility model provides an immersion cooling system, which is used for solving the problem that the conventional immersion cooling system is inconvenient to assemble. The method comprises the following steps: a sealed housing having a metal cylinder; a circulating layer formed by a first working fluid filled in the metal cylinder; the heat dissipation module is provided with an inner heat dissipation unit and an outer heat dissipation unit, and the inner heat dissipation unit and the outer heat dissipation unit are respectively connected with the metal cylinder; and the circulating pipeline is positioned in the metal cylinder body, the circulating pipeline is provided with a heat absorption section and a condensation section which are positioned between a first port and a second port, the first port is communicated with the circulating layer, and the first working fluid flows in the circulating pipeline.

Description

Submerged cooling system

Technical Field

The utility model relates to a cooling system, in particular to an immersion type cooling system.

Background

Immersion cooling (Immersion cooling) is to immerse an electrical unit (such as a motherboard of a server or a computer) in a non-conductive liquid, so that high-temperature heat energy generated during the operation of the electrical unit can be directly absorbed by the non-conductive liquid, and the electrical unit can maintain a proper operating temperature to achieve a desired operating efficiency and a desired service life.

The existing immersed cooling system is provided with a sealing groove and a circulating pipeline, the sealing groove is provided with a cavity, working fluid is filled in the cavity, an electric unit needing cooling is immersed in the working fluid, the circulating pipeline can be communicated with the cavity and a heat dissipation unit located outside the sealing groove, the circulating pipeline is provided with a heat absorption section and a condensation section, the heat absorption section and the condensation section are located between a first port and a second port of the circulating pipeline, the first port and the second port are located in the cavity, the first port is communicated with the working fluid, and the condensation section is located outside the sealing groove and combined with the heat dissipation unit. Therefore, when the electric unit operates to generate heat energy, the working liquid can absorb the heat energy and bring the heat energy to the heat dissipation unit positioned outside the sealing groove by virtue of the circulating pipeline.

However, in the above conventional immersion cooling system, since the condensation section of the circulation pipeline is located outside the sealing groove, and the first port and the second port are located in the cavity, two penetrating holes are usually selected to be formed in the sealing groove, and a plug ring is respectively disposed in the two penetrating holes to prevent the working fluid from leaking, and then the circulation pipeline passes through the plug ring and is connected to the heat dissipation unit, so as to meet the requirement of bringing thermal energy to the heat dissipation unit located outside the sealing groove.

In view of the above, there is a need for an improved immersion cooling system.

SUMMERY OF THE UTILITY MODEL

To solve the above problems, it is an object of the present invention to provide an immersion cooling system that can be assembled quickly and easily.

A further object of the present invention is to provide an immersion cooling system which allows to reduce the overall volume of the immersion cooling system.

It is still another object of the present invention to provide an immersion cooling system that can improve heat dissipation efficiency.

It is a further object of the present invention to provide an immersion cooling system that reduces manufacturing costs.

All directions or similar expressions such as "front", "back", "left", "right", "top", "bottom", "inner", "outer", "side", etc. are mainly referred to the directions of the drawings, and are only used for assisting the description and understanding of the embodiments of the present invention, and are not used to limit the present invention.

The use of the terms a or an for the elements and components described throughout this disclosure are for convenience only and provide a general sense of the scope of the utility model; in the present invention, it is to be understood that one or at least one is included, and a single concept also includes a plurality unless it is obvious that other meanings are included.

The terms "combined", "combined" and "assembled" as used herein include the form of the components being connected and separated without destroying the components, or the components being connected and separated without destroying the components, which can be selected by those skilled in the art according to the materials and assembling requirements of the components to be connected.

The submerged cooling system of the present invention comprises: a sealed housing having a metal cylinder; a circulating layer formed by a first working fluid filled in the metal cylinder; the heat dissipation module is provided with an inner heat dissipation unit and an outer heat dissipation unit, and the inner heat dissipation unit and the outer heat dissipation unit are respectively connected with the metal cylinder; and the circulating pipeline is positioned in the metal cylinder body, the circulating pipeline is provided with a heat absorption section and a condensation section which are positioned between a first port and a second port, the first port is communicated with the circulating layer, and the first working fluid flows in the circulating pipeline.

Therefore, the submerged cooling system of the utility model utilizes the inner heat dissipation unit and the outer heat dissipation unit to be respectively connected with the metal cylinder, and the circulation pipeline is positioned in the metal cylinder, so that heat energy can be transferred from the inner heat dissipation unit to the outer heat dissipation unit, therefore, the circulation pipeline does not need to penetrate through the metal cylinder and then be connected with the heat dissipation unit as in the prior art, the complicated procedure of assembling the submerged cooling system can be simplified, the assembling operation of the submerged cooling system can be rapidly completed, the whole volume of the submerged cooling system can be reduced, and the submerged cooling system has the effects of improving the assembling efficiency and the space utilization.

Wherein, this interior radiating element can splice in the inner wall of this metal cylinder, and this outer radiating element can splice in the outer wall of this metal cylinder. Therefore, the structure is simple and convenient to assemble, and has the effect of convenient assembly.

The inner heat dissipation unit can be provided with an inner heat exchanger, the outer heat dissipation unit is provided with an outer heat exchanger and a pipe group, the outer heat exchanger can be attached to the outer wall of the metal cylinder, and the pipe group can be provided with circulating liquid and is in thermal connection with the outer heat exchanger. Therefore, the structure is simple and convenient to manufacture, and the effect of reducing the manufacturing cost is achieved.

The external heat dissipation unit may have a plurality of external heat exchangers and a plurality of pipe assemblies, the plurality of external heat exchangers may be respectively attached to the outer wall of the metal cylinder, and the plurality of pipe assemblies may respectively have a circulating liquid and respectively thermally connect the plurality of external heat exchangers. Thus, when one of the external heat exchangers is damaged and cannot work, the other external heat exchangers can keep normal operation, or the number of the external heat exchangers can be easily increased according to the heat dissipation requirement, so that the effect of maintaining the heat dissipation effect of the immersion cooling system can be achieved.

The submerged cooling system of the present invention may additionally comprise a first non-return valve located between the heat absorbing section and the first port. Therefore, the first working fluid in the circulating pipeline can be prevented from flowing out of the first port, and the effect of fixing the circulating direction of the first working fluid is achieved.

The submerged cooling system of the present invention may additionally comprise a second non-return valve located between the heat absorption section and the condensing section. Therefore, the first working fluid in the circulating pipeline can be ensured to flow towards the direction of the second port, the first working fluid is prevented from flowing back to the heat absorption section from the condensation section, and the effect of fixing the circulating direction of the first working fluid is achieved.

The number of the condensing sections and the second ports may be multiple, and the inner heat dissipation unit may have a plurality of inner heat exchangers respectively connected to the condensing sections. Therefore, the plurality of inner heat dissipation units can transfer heat energy to the outer heat dissipation unit by means of the metal cylinder, and the heat dissipation efficiency is improved.

The sealing shell can be provided with an extension part, the extension part can be connected with the metal cylinder, and part of the outer heat dissipation unit can be attached to the extension part. Therefore, when the external heat dissipation unit is provided with a plurality of external heat exchangers or a larger external heat exchanger is selected, the metal cylinder can have enough area for the external heat dissipation unit to be attached, and the metal cylinder has the effects of increasing the heat dissipation area and being convenient to use.

The sealing shell can be provided with a cover body and an extension part, the cover body can be combined with the metal cylinder body, the extension part can be connected with the cover body, and part of the outer heat dissipation unit can be attached to the extension part. Therefore, when a larger heat radiating fin group is selected or the outer heat radiating unit is provided with a plurality of heat radiating fin groups, the extension part can have enough area for the heat radiating fin groups to be attached, and the heat radiating unit has the effects of increasing the heat radiating area and being convenient to use.

The outer heat dissipation unit can be provided with a heat dissipation fin group which is attached to the outer wall of the metal cylinder. Therefore, the structure is simple and convenient to manufacture, and the effect of reducing the manufacturing cost is achieved.

The outer heat dissipation unit may have at least one fan unit, and the at least one fan unit may guide an airflow through the heat dissipation fin set. Therefore, the air flow of the at least one fan unit can take away the heat energy transferred to the radiating fin group by the inner radiating unit, and the fan unit has the effects of accelerating air circulation and realizing good radiating efficiency.

The number of the heat dissipation modules can be multiple, and the heat dissipation modules can be distributed in the metal cylinder body respectively. Therefore, the inner heat dissipation units can transfer heat energy to the outer heat dissipation units by means of the metal cylinder, and the heat dissipation efficiency is improved.

The sealing shell can be provided with a cover body combined with the metal cylinder, and a cooling module can be connected to the outer surface of the cover body. Therefore, the heat energy in the metal cylinder can be taken away, and the heat dissipation effect is improved.

Wherein the inner heat dissipating unit may have a porous structure. Therefore, the contact area between the porous structure and the working liquid can be increased, and the heat exchange efficiency and the heat dissipation efficiency are improved.

The outer heat radiating unit can be provided with an outer water cooling device and an outer fin unit, the outer water cooling device can be attached to the outer wall of the metal cylinder, and the outer fin unit can be in contact with circulating liquid in the outer water cooling device. Therefore, the structure is simple and convenient to manufacture, and the effect of reducing the manufacturing cost is achieved.

The inner heat dissipation unit can be provided with an inner water cooling device and an inner fin unit, the inner water cooling device can be attached to the inner wall of the metal cylinder, and the inner fin unit can contact a first working solution flowing through the inner water cooling device. Therefore, the structure is simple and convenient to manufacture, and the effect of reducing the manufacturing cost is achieved.

The outer heat radiating unit can be provided with an outer water cooling device and an outer fin unit, the outer water cooling device can be attached to the outer wall of the metal cylinder, the outer fin unit can be in contact with circulating liquid in the outer water cooling device, the outer fin unit can penetrate through the metal cylinder, and an outer base of the outer fin unit can be combined with an inner base of the inner fin unit. Therefore, heat energy can be transmitted to the outer water cooling device from the inner water cooling device through the metal cylinder body, and can also be directly transmitted to the outer fin units from the inner fin units, and the heat sink has the effect of providing good heat dissipation efficiency.

The immersion cooling system of the present invention may further include a pump located at the circulation layer, the pump being in communication with the first port. Therefore, the pump can drive the first working fluid to easily enter the circulating pipeline and increase the circulating speed, and can relatively increase the speed of taking away heat energy, thereby having the effect of improving the heat dissipation efficiency.

The submerged cooling system of the present invention may additionally comprise at least one water cooling head coupled to the heat absorption section. Therefore, the heat energy of a heating source can be directly transmitted to the heat absorption section through the water cooling head, and then the heat energy of the heating source is taken away by means of circulating flow caused by phase change of the first working liquid, so that the heat dissipation efficiency is improved.

The immersion cooling system of the present invention may further include an operating layer formed of a second operating fluid filled in the metal cylinder, and the first operating fluid and the second operating fluid may not be dissolved in each other. Therefore, the first working solution and the second working solution can naturally form layering and improve the heat exchange performance.

The immersion cooling system of the utility model may additionally comprise at least one electrical unit with at least one heat-generating source located in the circulation layer or the working layer. Therefore, the electric unit can be cooled down really, and the electric unit has the effect of stable operation.

Drawings

FIG. 1: a combined cross-sectional view of the first embodiment of the utility model;

FIG. 2: a combined cross-sectional view of a second embodiment of the utility model;

FIG. 3: a combined cross-sectional view of a third embodiment of the utility model;

FIG. 4: a combined cross-sectional view of a fourth embodiment of the utility model;

FIG. 5: a combined cross-sectional view of a fifth embodiment of the utility model;

FIG. 6: a combined cross-sectional view of a sixth embodiment of the utility model;

FIG. 7: a combined cross-sectional view of a seventh embodiment of the utility model;

FIG. 8: a combined cross-sectional view of an eighth embodiment of the utility model;

FIG. 9: a combined cross-sectional view of a ninth embodiment of the utility model;

FIG. 10: a combined cross-sectional view of a tenth embodiment of the utility model;

FIG. 11: a combined cross-sectional view of an eleventh embodiment of the utility model;

FIG. 12: a combined cross-sectional view of a twelfth embodiment of the utility model;

FIG. 13: a combined cross-sectional view of a thirteenth embodiment of the utility model;

FIG. 14: a combined sectional view of a fourteenth embodiment of the utility model;

FIG. 15: a combined cross-sectional view of a fifteenth embodiment of the present invention;

FIG. 16: a combined cross-sectional view of a sixteenth embodiment of the utility model.

Description of the reference numerals

[ invention ] to provide

1: sealing case

11: metal cylinder

11a inner wall

11b outer wall

12 cover body

13 an extension part

2 circulating layer

3: heat radiation module

31 inner heat radiation unit

311 internal heat exchanger

312 porous Structure

313 internal water cooling device

313a inner shell base

313b inner cover plate

314 inner fin unit

314a inner base

32 external heat dissipation unit

321 external heat exchanger

322 pipe fitting set

323 heat dissipating fin set

324 fan unit

325 external water cooling device

325a casing seat

325b outer cover plate

326 outer fin unit

326a outer base

4: circulation pipeline

4a first port

4b second port

41 heat absorption section

42 condensation section

5 working layer

6 cooling module

E electric unit

G liquid storage tank

H heating source

K is a through hole

L1 first working fluid

L2 second working fluid

M is a pump

N water cooling head

Q1 first check valve

Q2 second check valve

R is circulating liquid

S is a chamber

U is an opening

V is a pressurizing motor.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below:

referring to fig. 1, a first embodiment of an immersion cooling system according to the present invention includes a sealed shell 1, a circulation layer 2, a heat dissipation module 3, and a circulation pipeline 4, where the sealed shell 1 has a metal cylinder 11, the circulation layer 2 is located in the metal cylinder 11, the heat dissipation module 3 is connected to the metal cylinder 11, and the circulation pipeline 4 is located in the metal cylinder 11.

The metal cylinder 11 may have an inner wall 11a and an outer wall 11b, a cavity S may be formed in the metal cylinder 11, the metal cylinder 11 may have an opening U communicating with the cavity S, the opening U may be used to input liquid into the cavity S or take and place objects to be cooled, the sealing shell 1 may have a cover 12, the cover 12 may cover the opening U, and the periphery of the cover 12 may be airtight with the metal cylinder 11, for example, by a sealing member such as a rubber ring, so as to ensure that gas or liquid in the cavity S does not leak from the periphery of the cover 12 to the outside.

The circulating layer 2 is formed by a first working liquid L1 filled in the metal cylinder 11, the first working liquid L1 can be selected as a non-conductive liquid.

The heat dissipation module 3 has an inner heat dissipation unit 31 and an outer heat dissipation unit 32, and the inner heat dissipation unit 31 and the outer heat dissipation unit 32 are respectively connected to the metal cylinder 11. In detail, the inner heat dissipating unit 31 may have an inner heat exchanger 311, and the inner heat dissipating unit 31 may be attached to the inner wall 11a of the metal cylinder 11. In addition, the external heat dissipation unit 32 can be an air-cooled or liquid-cooled heat sink, but the utility model is not limited thereto, and in the embodiment, the external heat dissipation unit 32 can be a liquid-cooled heat sink.

More specifically, the external heat dissipation unit 32 may have an external heat exchanger 321 and a pipe assembly 322, the external heat exchanger 321 may be attached to the outer wall 11b of the metal cylinder 11, the pipe assembly 322 may be thermally connected to the external heat exchanger 321, the pipe assembly 322 may have a circulation liquid R therein, and the pipe assembly 322 may further communicate with a pressure motor V and a storage tank G, the storage tank G may store the circulation liquid R, and the pressure motor V may drive the circulation liquid R to flow in the pipe assembly 322, wherein the circulation liquid R may have a different composition from the first working liquid L1, which is not limited in the present invention, and in this embodiment, the circulation liquid R may be, for example, water.

The circulation line 4 may be made of a heat conductive material such as copper, aluminum, titanium, or stainless steel, the circulation line 4 is configured to allow the first working fluid L1 to flow circularly, the circulation line 4 has a first port 4a and a second port 4b, a heat absorption section 41 and a condensation section 42 of the circulation line 4 are located between the first port 4a and the second port 4b, the first port 4a may be communicated with the heat absorption section 41, the heat absorption section 41 may be communicated with the condensation section 42, the condensation section 42 is communicated with the second port 4b, the first port 4a is communicated with the circulation layer 2, the first working fluid L1 may enter the circulation line 4 through the first port 4a to allow the first working fluid L1 to flow in the circulation line 4, and the second port 4b is configured to allow the cooled first working fluid L1 to flow back to the chamber S.

The immersion cooling system of the present invention may further include at least one electric unit E, which is an object to be cooled, and may be, for example, a main board, a communication interface board, a display adapter, or a data storage board, and the electric unit E may have at least one heat generating source H. The heat generating source H may be located on the circulating layer 2, so that the electrical unit E can be immersed in and contact with the first operating liquid L1, for example, the whole electrical unit E may be immersed in the circulating layer 2, or at least the heat generating source H of the electrical unit E may be immersed in the circulating layer 2, which is not limited by the present invention. Moreover, the heat absorbing section 41 of the circulation pipeline 4 can be closer to the heat generating source H, so that the heat absorbing section 41 can easily absorb the heat energy of the heat generating source H.

The immersion cooling system of the present invention may further include a pump M, the pump M may be located on the circulation layer 2, and the pump M may be connected to the first port 4a of the circulation pipe 4, so that the first working fluid L1 may enter the circulation pipe 4, and thus, by the arrangement of the pump M, the first working fluid L1 may be driven to easily enter the circulation pipe 4 and increase the circulation speed, and the speed of taking away heat energy may be relatively increased, so as to improve the heat dissipation efficiency.

The submerged cooling system of the present invention may further comprise at least one water-cooling head N, which may be combined with the heat absorbing section 41 of the circulation line 4, and in this embodiment, the number of the water-cooling heads N is described as one, and the first working fluid L1 of the circulation layer 2 may be communicated with the interior of the water-cooling head N. In detail, the water cooling head N can be thermally connected to a heat source H, and the heat energy of the heat source H can be directly transferred from the water cooling head N to the heat absorbing section 41, and then the heat energy of the heat source H is taken away by the circulation flow caused by the phase change of the first working fluid L1, thereby improving the heat dissipation efficiency.

When the electric unit E is operated to generate heat energy, the first working fluid L1 around the electric unit E and the first working fluid L1 in the circulation line 4 can absorb the heat energy, so that the electric unit E can be maintained at a proper working temperature, and the first working fluid L1 can be used for cooling the electric unit E and exchanging heat with the circulation line 4 to maintain the ambient temperature of the circulation layer 2, and the first working fluid L1 can be used for accelerating the heat energy of the heat generating source H to be taken away. The first working fluid L1 in the heat absorbing section 41 can absorb the heat energy of the heat generating source H, vaporize into a gas state, and flow into the condensing section 42 to carry the heat energy away from the heat generating source H.

Then, the gaseous first working fluid L1 enters the condensing section 42, is cooled and condensed to a liquid state, and flows to the second port 4b, and simultaneously transfers heat energy from the inner heat exchanger 311 to the outer heat exchanger 321 through the metal cylinder 11, and the pressurizing motor V can drive the circulating fluid R to flow in the pipe assembly 322, so that the circulating fluid R can carry away the heat energy at the outer heat dissipating unit 32, and the heat energy received by the outer heat dissipating unit 32 can be effectively cooled. In addition, the cooled first working fluid L1 can flow back to the circulation layer 2 through the second port 4b and enter the first port 4a again to flow to the heat absorption section 41, so as to circulate continuously to continuously absorb the heat energy of the heat generating source H.

Referring to fig. 2, which is a second embodiment of the immersion cooling system of the present invention, compared to the first embodiment, in this embodiment, the immersion cooling system of the present invention may further include an operating layer 5, the operating layer 5 may be formed by a second operating liquid L2 filled in the metal cylinder 11, the second operating liquid L2 may be selected as a non-conductive liquid, and the first operating liquid L1 and the second operating liquid L2 may not dissolve each other, the first port 4a of the circulation pipe 4 is located in the circulation layer 2, the second port 4b of the circulation pipe 4 is located in the operating layer 5, and the heat source H may be located in the operating layer 5, so that the electrical unit E can be immersed and contact the second operating liquid L2.

In detail, the density of the second working fluid L2 may be lower than that of the first working fluid L1, preferably, the density of the first working fluid L1 may be higher than that of water, and the density of the second working fluid L2 may be lower than that of water, so that the first working fluid L1 and the second working fluid L2 may be naturally layered in the chamber S, and the working layer 5 may be adjacent to and above the circulating layer 2 since the first working fluid L1 and the second working fluid L2 are not dissolved in each other. Moreover, the boiling point of the second working fluid L2 may be higher than that of the first working fluid L1, and preferably, the boiling point of the first working fluid L1 may be lower than that of water, so as to improve the heat exchange performance of the immersion cooling system.

When the electric unit E is operated to generate heat energy, the second working fluid L2 around the electric unit E and the first working fluid L1 in the circulation pipeline 4 can absorb the heat energy, so that the electric unit E can be maintained at a proper working temperature, and the second working fluid L2 can be used for cooling the electric unit E and exchanging heat with the circulation pipeline 4 to maintain the ambient temperature of the working layer 5, and the first working fluid L1 can be used for accelerating the heat energy of the heat generating source H to be taken away. Since the first working fluid L1 is only used for heat exchange in the circulation line 4, the usage amount of the first working fluid L1 can be lower than that of the second working fluid L2, and thus, the cost can be saved for users. Moreover, since the second operating fluid L2 is used in a higher amount than the first operating fluid L1, the first operating fluid L1 can be pressurized by the weight of the second operating fluid L2, and then enter the heat absorbing section 41 of the circulation line 4 through the first port 4 a.

In this way, the first working fluid L1 in the heat absorbing section 41 can absorb the heat energy of the heat generating source H, vaporize into a gas state and flow into the condensing section 42 to carry the heat energy away from the heat generating source H. The gaseous first working fluid L1 enters the condensing section 42, is cooled and condensed to a liquid state, and flows toward the second port 4b, and at the same time, transfers heat energy from the inner heat dissipating unit 31 to the outer heat dissipating unit 32 through the metal cylinder 11. In addition, the cooled first working fluid L1 can flow back to the working layer 5 through the second port 4b, and the liquid first working fluid L1 can naturally sink back to the circulating layer 2 by virtue of the density difference between the first working fluid L1 and the second working fluid L2, and then enter the first port 4a again to flow to the heat absorbing section 41, so as to continuously absorb the heat energy of the heat source H. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

In addition, in the embodiment, the immersion cooling system of the present invention may further include a first check valve Q1, the first check valve Q1 is located between the heat absorbing section 41 and the first port 4a, when the pump M is turned off and not actuated, the first check valve Q1 may prevent the first working fluid L1 in the circulation line 4 from flowing out from the first port 4a, and thus, the first check valve Q1 has an effect of fixing the circulation direction of the first working fluid L1.

Referring to fig. 3, which is a third embodiment of the immersion cooling system of the present invention, compared to the first embodiment, in this embodiment, the electrical unit E may have a plurality of heat sources H, in this embodiment, the number of the heat sources H is described as two, and the heat absorbing section 41 may sequentially pass through the two heat sources H and respectively dissipate heat from the two heat sources H by using two corresponding water cooling heads N, thereby improving heat dissipation efficiency. The two water cooling heads N may be connected in series, and in other embodiments, the two water cooling heads N may also be connected in parallel, the present invention is not limited thereto, and the structure of the circulation pipeline 4 may be adjusted according to the number of the heat sources H and the water cooling heads N, which is understandable to those skilled in the art. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 4, which is a fourth embodiment of the immersion cooling system of the present invention, compared to the second embodiment, in the present embodiment, the immersion cooling system of the present invention may further include a second check valve Q2, the second check valve Q2 may be located between the heat absorbing section 41 and the condensing section 42, and the second check valve Q2 ensures that the first working fluid L1 in the circulation line 4 may flow in the direction of the second port 4b, so as to prevent the first working fluid L1 from flowing back from the condensing section 42 to the heat absorbing section 41, whereby the second check valve Q2 has the function of fixing the circulation direction of the first working fluid L1. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 5, which is a fifth embodiment of the submerged cooling system of the present invention, compared to the second embodiment, in the present embodiment, the circulation line 4 is not connected to the pump M (as shown in fig. 2), so that the first port 4a of the circulation line 4 can be directly communicated with the circulation layer 2, the first working fluid L1 can enter the circulation line 4 through the first port 4a, the first working fluid L1 flows in the circulation line 4, and is located between the first port 4a and the first heat absorption section 41 through the first check valve Q1, the first check valve Q1 can prevent the first working fluid L1 in the circulation line 4 from flowing out through the first port 4a, and thus, the first check valve Q1 has a function of fixing the circulation direction of the first working fluid L1. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 6, which is a sixth embodiment of the immersion cooling system of the present invention, compared to the second embodiment, in the present embodiment, the external heat dissipation unit 32 may have a plurality of external heat exchangers 321 and a plurality of pipe sets 322, the plurality of external heat exchangers 321 may be respectively attached to the outer wall 11b of the metal cylinder 11, the plurality of pipe sets 322 may be respectively thermally connected to the plurality of external heat exchangers 321, each of the plurality of pipe sets 322 may have a circulating liquid R, and the plurality of pipe sets 322 may be further respectively connected to a pressurizing motor V (as shown in fig. 1), the pressurizing motors V may respectively drive the plurality of circulating liquids R to flow in the plurality of pipe sets 322, so that, when one of the external heat exchangers 321 is damaged and fails to work, the other external heat exchangers 321 may keep working normally, or the number of the external heat exchangers 321 may be easily increased according to the heat dissipation requirement, has the function of maintaining the heat dissipation effect of the immersion cooling system.

Specifically, the external heat exchangers 321 may be connected by only one pipe group 322 and one pressurizing motor V, so that the pressurizing motor V can drive the circulating liquid R to flow in the pipe group 322 and the external heat exchangers 321, or a distributor (not shown) and a pressurizing motor V (shown in fig. 1) may be connected by a plurality of pipe groups 322, and the circulating liquid R is pumped to different external heat exchangers 321 through the distributor, which is not limited in the present invention.

Referring to fig. 7, a seventh embodiment of the immersion cooling system of the present invention is shown, which is compared with the sixth embodiment, in this embodiment, the number of the condensing sections 42 and the second ports 4b may be plural, and the inner heat dissipation unit 31 may have a plurality of inner heat exchangers 311 respectively connected to the condensing sections 42, in this embodiment, the number of the condensation section 42, the second port 4b and the inner heat dissipating unit 31 is two, the two inner heat exchangers 311 may be respectively attached to the inner wall 11a of the metal cylinder 11, the two condensing sections 42 may be respectively communicated with the heat absorbing section 41, and the two second ports 4b may be located in the working layer 5, so that, the first working fluid L1 in the heat absorbing section 41 can absorb the heat energy of the heat generating source H, and vaporize into gas state and flow into the two condensing sections 42 respectively to carry the heat energy away from the heat generating source H.

Then, the first working fluid L1 in the gaseous state enters the two condensing sections 42, is cooled and condensed back to the liquid state, and flows to the two second ports 4 b. The cooled first working fluid L1 can flow back to the working layer 5 through the two second ports 4b, and then the liquid first working fluid L1 can naturally sink back to the circulating layer 2 by virtue of the density difference between the first working fluid L1 and the second working fluid L2, and then the liquid first working fluid L1 can enter the first port 4a again and flow to the heat absorbing section 41, so as to circulate continuously to continuously absorb the heat energy of the heat source H, thereby improving the heat exchange performance of the immersion cooling system. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 8, which is an eighth embodiment of the immersion cooling system of the present invention, compared to the second embodiment, in the present embodiment, the sealing shell 1 may have an extension portion 13, the extension portion 13 may be connected to the metal cylinder 11 and extend in a direction away from the pump M, and a part of the external heat dissipation unit 32 may be attached to the extension portion 13, so that when the external heat dissipation unit 32 has a plurality of external heat exchangers 321 or a larger external heat exchanger 321 is selected, the metal cylinder 11 may have a sufficient area for the external heat dissipation unit 32 to attach, which may have the effects of increasing a heat dissipation area and facilitating use. In the present embodiment, the number of the outer heat exchangers 321 is illustrated as two, and a part of one of the outer heat exchangers 321 is attached to the extension portion 13.

In addition, the extension portion 13 can be made of metal material, so that the inner heat dissipation unit 31 can easily transfer heat energy to the outer heat dissipation unit 32 through the extension portion 13, and further has the function of good heat conduction performance. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 9, which shows a ninth embodiment of the immersion cooling system of the present invention, compared to the second embodiment, in this embodiment, the outer heat dissipation unit 32 may be an air-cooled heat sink. In detail, the outer heat dissipating unit 32 may have one heat dissipating fin set 323 and at least one fan unit 324, the at least one fan unit 324 may guide airflow through the heat dissipating fin set 323, in this embodiment, the number of the fan units 324 is two, the heat dissipating fin set 323 may be attached to the outer wall 11b of the metal cylinder 11, heat energy may be transferred from the inner heat dissipating unit 31 to the heat dissipating fin set 323 through the metal cylinder 11, and the airflow of the two fan units 324 may take away heat energy transferred from the inner heat dissipating unit 31 to the heat dissipating fin set 323, so as to accelerate air circulation and achieve good heat dissipating efficiency.

Referring to fig. 10, which shows a tenth embodiment of the immersion cooling system of the present invention, compared to the ninth embodiment, in the present embodiment, the extension portion 13 may be connected to the cover 12, the extension portion 13 may be bent and extended in a direction away from the pump M, and a part of the outer heat dissipation unit 32 may be attached to the extension portion 13, so that when a larger heat dissipation fin set 323 is used or when the outer heat dissipation unit 32 has a plurality of heat dissipation fin sets 323, the extension portion 13 may have a sufficient area for the heat dissipation fin set 323 to attach, which may have the functions of increasing a heat dissipation area and facilitating use.

Referring to fig. 11, it is shown an eleventh embodiment of the immersion cooling system of the present invention, compared to the second embodiment, in this embodiment, the number of the heat dissipation modules 3 may be multiple, and the heat dissipation modules 3 may be distributed on the metal cylinder 11, in this embodiment, the heat dissipation modules 3 are respectively and symmetrically distributed on the metal cylinder 11 for illustration, and the present invention is not limited thereto.

Moreover, the number of the heat dissipation modules 3 of the present embodiment is described by two, that is, the two heat dissipation modules 3 may respectively have an inner heat dissipation unit 31 and an outer heat dissipation unit 32, and the two inner heat dissipation units 31 may be respectively connected to the two condensation sections 42, so that the first working fluid L1 may absorb the heat energy of the heat source H, vaporize the heat energy into a gas state, and flow into the two condensation sections 42, so as to take the heat energy away from the heat source H, and meanwhile, the two inner heat dissipation units 31 may transfer the heat energy to the two outer heat dissipation units 32 by means of the metal cylinder 11, which may have an effect of improving the heat dissipation efficiency. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 12, it is shown a twelfth embodiment of the immersion cooling system of the present invention, compared with the eleventh embodiment, in this embodiment, the immersion cooling system of the present invention may further include a cooling module 6, the cooling module 6 may be connected to the outer surface of the cover 12, the cooling module 6 may be, for example, a fin, the cooling module 6 may be made of a metal material with a high thermal conductivity, and by the arrangement of the cooling module 6, the heat energy in the metal cylinder 11 may be taken away, so as to have an effect of increasing the heat dissipation efficiency. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 13, which is a thirteenth embodiment of the immersion cooling system of the present invention, compared to the second embodiment, in the present embodiment, the inner heat dissipation unit 31 may have a porous structure 312, the porous structure 312 may contact the second working fluid L2, and the porous structure 312 may be, for example, a porous mesh structure or a powder sintering structure; by the arrangement of the porous structure 312, the contact area between the porous structure 312 and the second working fluid L2 can be increased, so as to improve the heat exchange efficiency, and further improve the heat dissipation efficiency. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 14, which is a fourteenth embodiment of the immersion cooling system of the present invention, compared to the second embodiment, in the present embodiment, the outer heat dissipation unit 32 may have an outer water cooling device 325 and an outer fin unit 326, the outer water cooling device 325 may be thermally connected to the tube set 322, the tube set 322 may be further connected to the pressurizing motor V (as shown in fig. 1), the outer water cooling device 325 is attached to the outer wall 11b of the metal cylinder 11, and the outer fin unit 326 is located in the outer water cooling device 325.

In detail, the outer water cooling device 325 may have a housing seat 325a and an outer cover plate 325b combined, the outer water cooling device 325 may be attached to the outer wall 11b of the metal cylinder 11 by the outer cover plate 325b, and the outer fin unit 326 may contact the circulating liquid R in the outer water cooling device 325. Thus, when the inner heat dissipation unit 31 transfers heat energy to the outer water cooling device 325 through the metal cylinder 11, the pressurizing motor V drives the circulating liquid R to flow in the pipe assembly 322, and the circulating liquid R can take away the heat energy from the outer water cooling device 325, so that the heat energy received by the outer water cooling device 325 can be effectively cooled, and a good heat dissipation effect can be achieved. The outer cover 325b and the outer fin unit 326 are preferably integrally formed, which can improve the thermal conductivity. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 15, which shows a fifteenth embodiment of the immersion cooling system of the present invention, compared to the fourteenth embodiment, in the present embodiment, the inner heat dissipation unit 31 may have an inner water cooling device 313 and an inner fin unit 314, and the inner fin unit 314 may be located in the inner water cooling device 313.

In detail, the internal water cooling device 313 may have an inner housing seat 313a and an inner cover plate 313b combined together, the internal water cooling device 313 may be attached to the inner wall 11a of the metal cylinder 11 by the inner cover plate 313b, and the internal fin unit 314 contacts the first working fluid L1 flowing through the internal water cooling device 313. Thus, the inner water cooling device 313 can transfer heat energy to the outer water cooling device 325 through the metal cylinder 11, and take away the heat energy from the outer water cooling device 325 by means of the circulating liquid R, so that the heat energy received by the outer water cooling device 325 can be effectively cooled, and the effect of providing good heat dissipation efficiency can be achieved. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

Referring to fig. 16, which shows a sixteenth embodiment of the immersion cooling system of the present invention, compared to the fifteenth embodiment, in the present embodiment, the outer fin unit 326 may penetrate the metal cylinder 11 and be combined with the inner fin unit 314.

In detail, the metal cylinder 11 may have a through hole K, the outer water cooling device 325 may be attached to the outer wall 11b of the metal cylinder 11 by the housing seat 325a, the outer fin unit 326 may pass through the through hole K of the metal cylinder 11, an outer base 326a of the outer fin unit 326 may be combined with an inner base 314a of the inner fin unit 314, and the first working fluid L1 in the inner water cooling device 313 is not in communication with the circulating fluid R in the outer water cooling device 325. Thus, heat energy can be directly transferred from the inner fin unit 314 to the outer fin unit 326, in addition to being transferred from the inner water cooling device 313 to the outer water cooling device 325 through the metal cylinder 11, thereby achieving the effect of providing good heat dissipation efficiency. Specifically, in the present embodiment, the external heat dissipation unit 32 is also provided with a pressurizing motor V (not shown) as shown in fig. 1, and the pressurizing motor V can drive the circulating liquid R to flow in the pipe assembly 322.

In summary, in the immersion cooling system of the present invention, the inner heat dissipating unit and the outer heat dissipating unit are respectively connected to the metal cylinder, and the circulation pipeline is located in the metal cylinder, so that heat energy can be transferred from the inner heat dissipating unit to the outer heat dissipating unit.

Claims

1. An immersion cooling system, comprising:

a sealed housing having a metal cylinder;

a circulating layer formed by a first working fluid filled in the metal cylinder;

the heat dissipation module is provided with an inner heat dissipation unit and an outer heat dissipation unit, and the inner heat dissipation unit and the outer heat dissipation unit are respectively connected with the metal cylinder; and

and the circulating pipeline is positioned in the metal cylinder body, the circulating pipeline is provided with a heat absorption section and a condensation section which are positioned between a first port and a second port, the first port is communicated with the circulating layer, and the first working fluid flows in the circulating pipeline.

2. The immersion cooling system as claimed in claim 1, wherein the inner heat dissipating unit is attached to an inner wall of the metal cylinder and the outer heat dissipating unit is attached to an outer wall of the metal cylinder.

3. The immersion cooling system as claimed in claim 2, wherein the inner heat dissipating unit has an inner heat exchanger, the outer heat dissipating unit has an outer heat exchanger and a set of pipes, the outer heat exchanger is attached to the outer wall of the metal cylinder, and the set of pipes has a circulating fluid therein and is thermally connected to the outer heat exchanger.

4. The immersion cooling system as claimed in claim 2, wherein the external heat dissipation unit has a plurality of external heat exchangers and a plurality of sets of pipes, the plurality of external heat exchangers are respectively attached to the outer wall of the metal cylinder, and each of the plurality of sets of pipes has a circulating liquid and is respectively thermally connected to the plurality of external heat exchangers.

5. The submerged cooling system of claim 1, further comprising a first check valve between the heat absorbing section and the first port.

6. An immersion cooling system as claimed in claim 5, further comprising a second check valve between the heat absorbing section and the condensing section.

7. The submerged cooling system of claim 1, wherein the number of the condensing sections and the second ports is plural, and the inner heat dissipation unit has a plurality of inner heat exchangers respectively connected to the plurality of condensing sections.

8. The immersion cooling system as claimed in claim 1, wherein the sealed shell has an extension portion, the extension portion is connected to the metal cylinder, and a portion of the outer heat dissipating unit is attached to the extension portion.

9. The immersion cooling system as claimed in claim 1, wherein the sealed shell has a cover and an extension, the cover is combined with the metal cylinder, the extension is connected to the cover, and a part of the outer heat dissipation unit is attached to the extension.

10. The immersion cooling system as claimed in claim 1, wherein the outer heat dissipating unit has a set of heat dissipating fins that abut the outer wall of the metal cylinder.

11. The submerged cooling system of claim 10, wherein the outer heat dissipating unit has at least one fan unit that directs airflow through the set of heat dissipating fins.

12. The immersion cooling system of claim 1, wherein the number of the heat sink modules is plural, and the plural heat sink modules are respectively distributed on the metal cylinder.

13. An immersion cooling system as claimed in claim 1, wherein the containment vessel has a cover coupled to the metal cylinder, a cooling module attached to an outer surface of the cover.

14. The immersion cooling system as claimed in claim 1, wherein the inner heat dissipating unit has a porous structure.

15. The submerged cooling system of claim 1, wherein the outer heat sink unit has an outer water cooling device attached to the outer wall of the metal cylinder and an outer fin unit contacting a circulating liquid in the outer water cooling device.

16. The immersion cooling system as claimed in claim 1, wherein the inner heat sink unit has an inner water cooling device and an inner fin unit, the inner water cooling device is attached to the inner wall of the metal cylinder, and the inner fin unit contacts the first working fluid flowing through the inner water cooling device.

17. The submerged cooling system of claim 16, wherein the outer heat sink unit has an outer water cooling device and an outer fin unit, the outer water cooling device is attached to the outer wall of the metal cylinder, the outer fin unit contacts a circulating liquid in the outer water cooling device, the outer fin unit penetrates the metal cylinder, and an outer base of the outer fin unit is coupled to an inner base of the inner fin unit.

18. An immersion cooling system as claimed in any one of claims 1 to 17, further comprising a pump located in the circulation stage, the pump being in communication with the first port.

19. An immersion cooling system as claimed in any one of claims 1 to 17, further comprising at least one water cooling head coupled to the heat absorbing section.

20. An immersion cooling system as claimed in any one of claims 1 to 17, further comprising an operating layer formed by a second operating fluid filled in the metal cylinder, the first operating fluid and the second operating fluid being immiscible with each other.

21. An immersion cooling system according to claim 20, further comprising at least one electrical unit having at least one heat generating source located in the circulation level or the working level.