Liquid cooling device

Abstract

The utility model discloses a liquid cooling device, relates to the cooling device technical field, said liquid cooling device includes: box and heat exchange medium, said box defines the liquid cooling chamber, said liquid cooling chamber is used for placing battery monomer, said heat exchange medium is provided in said liquid cooling chamber, said heat exchange medium is used for heat exchange between said battery monomer and said liquid cooling chamber. The heat exchange medium comprises a first heat exchange medium layer and a second heat exchange medium layer which are not mutually fused, the first heat exchange medium layer is located below the second heat exchange medium layer, the first heat exchange medium layer is a pure water layer, the first heat exchange medium layer surrounds the shell part of the battery monomer, and the second heat exchange medium layer is located below the second heat exchange medium layer. The second heat exchange medium layer surrounds the tab part of the battery monomer, and the height size of the first heat exchange medium layer and the height size of the second heat exchange medium layer are adjustable in the height direction of the liquid cooling device. According to the liquid cooling device disclosed by the embodiment of the invention, the liquid cooling device can be adapted to the battery monomers with different sizes, and the liquid cooling device is high in universality and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of cooling device technology, and in particular to a liquid cooling device. Background Technology

[0002] In related technologies, when conducting experimental tests on battery cells, liquid cooling devices are used to exchange heat with the battery cells in order to ensure that the battery cells meet the appropriate temperature requirements. However, the height of the heat exchange medium layer in existing liquid cooling devices is not adjustable, resulting in poor versatility of the liquid cooling devices. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a liquid cooling device that is highly versatile and practical.

[0004] A liquid cooling device according to an embodiment of the present invention includes: a housing and a heat exchange medium. The housing defines a liquid cooling cavity, which is used to place a battery cell. The heat exchange medium is disposed in the liquid cooling cavity and includes a first heat exchange medium layer and a second heat exchange medium layer that are immiscible. The first heat exchange medium layer is located below the second heat exchange medium layer. The first heat exchange medium layer is a pure water layer. The first heat exchange medium layer surrounds the shell portion of the battery cell, and the second heat exchange medium layer surrounds the tab portion of the battery cell. Along the height direction of the liquid cooling device, the height dimensions of both the first and second heat exchange medium layers are adjustable.

[0005] According to the embodiments of this application, the liquid cooling device can be adapted to battery cells of different sizes by setting the height of both the first heat exchange medium layer and the second heat exchange medium layer to be adjustable. The liquid cooling device has high versatility and high practicality.

[0006] According to some embodiments of the present invention, the side wall of the housing is formed with a first medium through hole and a second medium through hole. The first medium through hole is located below the second medium through hole. Both the first medium through hole and the second medium through hole are connected to the liquid cooling cavity. Pure water flows into or out of the liquid cooling cavity through the first medium through hole, and the heat exchange medium of the second heat exchange medium layer flows into or out of the liquid cooling cavity through the second medium through hole.

[0007] According to some embodiments of the present invention, the first medium through hole is provided with a first valve, which is used to adjust the opening degree of the first medium through hole, and the second medium through hole is provided with a second valve, which is used to adjust the opening degree of the second medium through hole.

[0008] According to some embodiments of the present invention, the liquid cooling device further includes: a separator layer, wherein the second heat exchange medium layer is an oil layer, and the separator layer is located between the first heat exchange medium layer and the second heat exchange medium layer.

[0009] According to some embodiments of the present invention, the liquid cooling device further includes: a constant temperature chamber, the second heat exchange medium layer being a gas layer, and the chamber body being installed inside the constant temperature chamber.

[0010] According to some embodiments of the present invention, the liquid cooling device further includes: a heat exchanger, the heat exchanger being disposed within the liquid cooling cavity, the heat exchanger being used to exchange heat with at least one of the first heat exchange medium layer and the second heat exchange medium layer to adjust the temperature of the heat exchange medium.

[0011] According to some embodiments of the present invention, the heat exchanger includes: a first heat exchanger and a second heat exchanger, wherein the first heat exchanger is used to exchange heat with the first heat exchange medium layer, and the second heat exchanger is used to exchange heat with the second heat exchange medium layer.

[0012] According to some embodiments of the present invention, at least one side wall of the housing is configured as a heat exchange wall, which is used to heat or cool the heat exchange medium.

[0013] According to some embodiments of the present invention, the liquid cooling device further includes: a first driving unit located inside the liquid cooling cavity, a first heat exchange medium layer disposed around the first driving unit, and the first driving unit being used to drive the pure water of the first heat exchange medium layer to flow inside the liquid cooling cavity.

[0014] According to some embodiments of the present invention, the liquid cooling device further includes: a second driving unit located inside the liquid cooling cavity, a second heat exchange medium layer disposed around the second driving unit, and the second driving unit being used to drive the heat exchange medium of the second heat exchange medium layer to flow inside the liquid cooling cavity.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of a liquid cooling device according to an embodiment of this application.

[0018] Figure label:

[0019] Liquid cooling device 100,

[0020] 10. Enclosure; 11. Liquid cooling chamber; 12. Side wall; 13. Bottom wall.

[0021] First heat exchange medium layer 21, second heat exchange medium layer 22

[0022] First medium passage 30, first valve 31

[0023] Second medium passage 40, second valve 41

[0024] Separator layer 50,

[0025] First heat exchanger 61, second heat exchanger 62

[0026] The battery cell is 200, the casing is 210, and the tabs are 220. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] The following is for reference. Figure 1 Describes a liquid cooling device 100 according to an embodiment of the present invention.

[0029] According to the liquid cooling device 100 of the present invention, such as Figure 1 As shown, the liquid cooling device 100 may include: a housing 10 and a heat exchange medium. The housing 10 defines a liquid cooling cavity 11, which is used to place a battery cell 200. The heat exchange medium is disposed in the liquid cooling cavity 11 and includes a first heat exchange medium layer 21 and a second heat exchange medium layer 22 that are immiscible. The first heat exchange medium layer 21 is located below the second heat exchange medium layer 22 and is a pure water layer. The first heat exchange medium layer 21 surrounds the shell portion 210 of the battery cell 200, and the second heat exchange medium layer 22 surrounds the tab portion 220 of the battery cell 200. Along the height direction of the liquid cooling device 100, the height dimensions of the first heat exchange medium layer 21 and the second heat exchange medium layer 22 are both adjustable.

[0030] It should be noted that in related technologies, when conducting experimental tests on battery cells, liquid cooling devices are used to exchange heat with the battery cells in order to ensure that the battery cells meet the appropriate temperature requirements. However, the height of the heat exchange medium layer in existing liquid cooling devices is not adjustable, resulting in poor versatility of the liquid cooling devices.

[0031] Based on this, this application proposes a liquid cooling device 100. A housing 10 defines a liquid cooling cavity 11, and a battery cell 200 can be disposed within the liquid cooling cavity 11. When the housing 10 is placed vertically, the battery cell 200 can be placed on the bottom wall 13 of the housing 10, and the battery cell 200 can be located at the bottom of the liquid cooling cavity 11. A heat exchange medium is disposed within the liquid cooling cavity 11. The heat exchange medium may include a first heat exchange medium layer 21 and a second heat exchange medium layer 22. It should be noted that the heat exchange medium may include a first heat exchange medium and a second heat exchange medium, which are different. The first heat exchange medium forms a first heat exchange medium layer 21, and the second heat exchange medium forms a second heat exchange medium layer 22. The first heat exchange medium layer 21 and the second heat exchange medium layer 22 are immiscible and can remain unmixed and non-interfering with each other. The first heat exchange medium layer 21 and the second heat exchange medium layer 22 can be used to exchange heat with different parts of the battery cell 200, respectively. The first heat exchange medium layer 21 can be a pure water layer. Pure water is H2O without impurities. Pure water has a high thermal conductivity and high thermal efficiency, which can improve the heat exchange efficiency with the battery cell 200. Compared with other heat exchange media, pure water temperature rises more slowly when absorbing the same amount of heat, which can maintain a relatively stable temperature during the heat exchange process. This is beneficial for maintaining the temperature balance within the liquid cooling device 100. Furthermore, pure water has the advantages of being harmless, pollution-free, and recyclable, which helps reduce the cost of the liquid cooling device 100. The first heat exchange medium layer 21 can be located below the second heat exchange medium layer 22. The first heat exchange medium layer 21 surrounds the shell portion 210 of the battery cell 200. The shell portion 210 of the battery cell 200 can be immersed in the first heat exchange medium layer 21. The heat exchange medium in the first heat exchange medium layer 21 can be used for heat exchange with the shell portion 210 of the battery cell 200.

[0032] The heat exchange medium of the second heat exchange medium layer 22 can be a heat exchange medium different from pure water, such as air or heat transfer oil. The second heat exchange medium layer 22 can surround the tab portion 220 of the battery cell 200, and the tab portion 220 of the battery cell 200 can be immersed in the second heat exchange medium layer 22. The heat exchange medium of the second heat exchange medium layer 22 can be used for heat exchange with the tab portion 220 of the battery cell 200. The tab portion 220 of the battery cell 200 is located above the shell portion 210 of the battery cell 200. The first heat exchange medium layer 21 is far away from the tab portion 220 of the battery cell 200, which can reduce the probability of short circuit of the tab portion 220 of the battery cell 200.

[0033] Along the height direction of the liquid cooling device 100, the height dimensions of the first heat exchange medium layer 21 and the second heat exchange medium layer 22 are both adjustable. The height dimension of the first heat exchange medium layer 21 can be adjusted according to the height dimension of the shell portion 210 of the corresponding battery cell 200, so that the shell portion 210 of the battery cell 200 is immersed in the corresponding first heat exchange medium layer 21. The height dimension of the second heat exchange medium layer 22 can be adjusted according to the height dimension of the tab portion 220 of the corresponding battery cell 200, so that the tab portion 220 of the battery cell 200 is immersed in the corresponding second heat exchange medium layer 22. By setting the height dimensions of the first heat exchange medium layer 21 and the second heat exchange medium layer 22 to be adjustable, the liquid cooling device 100 can be adapted to battery cells 200 of different sizes, and the liquid cooling device 100 has high versatility and practicality.

[0034] In some embodiments of this utility model, such as Figure 1 As shown, the side wall 12 of the housing 10 has a first medium through hole 30 and a second medium through hole 40. The first medium through hole 30 is located below the second medium through hole 40. Both the first medium through hole 30 and the second medium through hole 40 are connected to the liquid cooling cavity 11. Pure water flows into or out of the liquid cooling cavity 11 through the first medium through hole 30, and the heat exchange medium of the second heat exchange medium layer 22 flows into or out of the liquid cooling cavity 11 through the second medium through hole 40.

[0035] The side wall 12 of the housing 10 can be formed with a first medium through hole 30 and a second medium through hole 40. The first medium through hole 30 can penetrate the side wall 12 of the housing 10 along the thickness direction and is connected to the liquid cooling cavity 11. The second medium through hole 40 can penetrate the side wall 12 of the housing 10 along the thickness direction and is connected to the liquid cooling cavity 11. The first medium through hole 30 is located below the second medium through hole 40. Pure water can flow into the liquid cooling cavity 11 through the first medium through hole 30 and form a first heat exchange medium layer 21. The heat exchange medium of the second heat exchange medium layer 22 can flow into the liquid cooling cavity 11 through the second medium through hole 40 and form a second heat exchange medium layer 22. The first heat exchange medium layer 21 is located below the second heat exchange medium layer 22. Pure water can flow into or out of the liquid cooling cavity 11 through the first medium through-hole 30, forming a first heat exchange medium layer 21 within the liquid cooling cavity 11, thereby adjusting the height of the first heat exchange medium layer 21. The heat exchange medium of the second heat exchange medium layer 22 can flow into or out of the liquid cooling cavity 11 through the second medium through-hole 40, thereby adjusting the height of the second heat exchange medium layer 22.

[0036] In some embodiments of this utility model, the first medium through hole 30 is provided with a first valve 31, which is used to adjust the opening degree of the first medium through hole 30, and the second medium through hole 40 is provided with a second valve 41, which is used to adjust the opening degree of the second medium through hole 40.

[0037] The first medium through-hole 30 is equipped with a first valve 31, which can be a solenoid valve, a mechanical valve, etc. The first valve 31 can be used to adjust the opening of the first medium through-hole 30, thereby controlling the flow rate of pure water flowing through the first medium through-hole 30, and achieving the effect of adjusting the height of the first heat exchange medium layer 21. The second medium through-hole 40 is equipped with a second valve 41, which can be a solenoid valve, a mechanical valve, etc. The second valve 41 can be used to adjust the opening of the second medium through-hole 40, thereby controlling the flow rate of the heat exchange medium flowing through the second medium through-hole 40, and achieving the effect of adjusting the height of the second heat exchange medium layer 22. By controlling the first valve 31 and the second valve 41, the opening of the first medium through-hole 30 and the second medium through-hole 40 can be adjusted, and the height of the first heat exchange medium layer 21 and the height of the second heat exchange medium layer 22 can be controlled, so that the liquid cooling device 100 can be adapted to battery cells 200 of different sizes, which is beneficial to improving the versatility of the liquid cooling device 100.

[0038] In some embodiments of this utility model, the liquid cooling device 100 may further include: a partition layer 50, the second heat exchange medium layer 22 being an oil layer, and the partition layer 50 being located between the first heat exchange medium layer 21 and the second heat exchange medium layer 22.

[0039] The second heat exchange medium layer 22 can be an oil layer, and the heat exchange medium in the second heat exchange medium layer 22 can be heat transfer oil, etc. The separator 50 can be located between the first heat exchange medium layer 21 and the second heat exchange medium layer 22. The separator 50 can prevent the first heat exchange medium layer 21 and the second heat exchange medium layer 22 from mixing. The separator 50 can be an oil-water separation membrane, which can effectively separate the heat transfer oil and pure water, thus isolating them from each other. By setting the separator 50, the pure water in the first heat exchange medium layer 21 and the heat exchange medium in the second heat exchange medium layer 22 will not mix or interfere with each other during the heat exchange process, which can ensure the stability of the heat exchange process and improve the safety of the liquid cooling device 100 during operation.

[0040] In some embodiments of this utility model, the liquid cooling device 100 may further include: a constant temperature chamber, the second heat exchange medium layer 22 being a gas layer, and the chamber body 10 being installed inside the constant temperature chamber.

[0041] The second heat exchange medium layer 22 can be a gas layer, and the heat exchange medium in the second heat exchange medium layer 22 can be air or the like. The tab portion 220 of the battery cell 200 is immersed in the gas layer. When the second heat exchange medium layer 22 is constructed as a gas layer, the chamber 10 can be installed in a constant temperature chamber, thereby maintaining the temperature of the liquid cooling device 100 at a constant state. When the liquid cooling device 100 is used in experiments requiring cooling of the battery cell 200, the constant temperature chamber can keep the tab portion 220 of the battery cell 200 within the stable environment required by the experiment, which helps to improve the reliability of the experimental data.

[0042] In some embodiments of the present invention, the liquid cooling device 100 may further include a heat exchanger disposed in the liquid cooling cavity 11, the heat exchanger being used to exchange heat with at least one of the first heat exchange medium layer 21 and the second heat exchange medium layer 22 to adjust the temperature of the heat exchange medium.

[0043] The heat exchanger is disposed within the liquid cooling chamber 11. As an example, the heat exchanger can be a cooling coil, a flat plate heat exchanger, etc. The heat exchanger can be used to exchange heat with at least one of the first heat exchange medium layer 21 and the second heat exchange medium layer 22. The heat exchanger can be used to control the temperature of at least one of the first heat exchange medium layer 21 and the second heat exchange medium layer 22, thereby achieving the effect of controlling the temperature of the heat exchange medium within the liquid cooling device 100.

[0044] As one example, the heat exchanger can be located in the first heat exchange medium layer 21, and the heat exchanger can exchange heat with the first heat exchange medium layer 21, thereby controlling the temperature of the pure water, which can be kept at a constant temperature. As another example, the heat exchanger can be located in the second heat exchange medium layer 22, and the heat exchanger can exchange heat with the second heat exchange medium layer 22, thereby controlling the temperature of the heat exchange medium in the second heat exchange medium layer 22, which can be kept at a constant temperature. As yet another example, the liquid cooling device 100 can include multiple heat exchangers, which can be located in the first heat exchange medium layer 21 and the second heat exchange medium layer 22 respectively, and can exchange heat with the first heat exchange medium layer 21 and the second heat exchange medium layer 22 respectively, thereby achieving the effect of controlling the temperature of the pure water and the heat exchange medium in the second heat exchange medium layer 22.

[0045] In some embodiments of this utility model, the heat exchanger may include: a first heat exchanger 61 and a second heat exchanger 62, wherein the first heat exchanger 61 is used to exchange heat with the first heat exchange medium layer 21, and the second heat exchanger 62 is used to exchange heat with the second heat exchange medium layer 22.

[0046] The first heat exchanger 61 can be located in the first heat exchange medium layer 21. The first heat exchanger 61 can exchange heat with the first heat exchange medium layer 21 and can control the temperature of pure water. The second heat exchanger 62 can be located in the second heat exchange medium layer 22. The second heat exchanger 62 can exchange heat with the second heat exchange medium layer 22 and can control the temperature of the heat exchange medium in the second heat exchange medium layer 22. By setting the first heat exchanger 61 and the second heat exchanger 62, the temperature control of the liquid cooling device 100 can be more precise and stable, which is beneficial to improving the reliability of the liquid cooling device 100.

[0047] In some embodiments of the present invention, at least one side wall 12 of the housing 10 is configured as a heat exchange wall, which is used to heat or cool the heat exchange medium.

[0048] At least one side wall 12 of the housing 10 can be configured as a heat exchange wall, which can exchange heat with the heat exchange medium in the liquid cooling cavity 11. The heat exchange wall can be used to heat or cool the heat exchange medium, thereby achieving the effect of controlling the temperature of the heat exchange medium in the liquid cooling cavity 11. By configuring the side wall 12 of the housing 10 as a heat exchange wall, the number of components of the liquid cooling device 100 can be reduced, and the cost of the liquid cooling device 100 can be reduced.

[0049] In some embodiments of the present invention, the liquid cooling device 100 may further include: a first driving unit located inside the liquid cooling cavity 11, a first heat exchange medium layer 21 disposed around the first driving unit, and the first driving unit being used to drive pure water in the first heat exchange medium layer 21 to flow inside the liquid cooling cavity 11.

[0050] A first driving unit may also be provided inside the liquid cooling cavity 11. The first driving unit may be located inside the first heat exchange medium layer 21, which surrounds the first driving unit. The first driving unit can drive the pure water in the first heat exchange medium layer 21 to flow within the liquid cooling cavity 11. As an example, the first driving unit may be an impeller, a water pump, etc. When the casing portion 210 of the battery cell 200 exchanges heat with the pure water, the flowing pure water can increase the heat exchange area between the casing portion 210 of the battery cell 200 and the pure water, which is beneficial to improving the heat exchange efficiency. Furthermore, the flow of pure water within the liquid cooling cavity 11 can make the heat dissipation of the casing portion 210 of the battery cell 200 more uniform, which can reduce local overheating and further improve the safety and reliability of the liquid cooling device 100.

[0051] In some embodiments of the present invention, the liquid cooling device 100 may further include: a second driving unit located inside the liquid cooling cavity 11, a second heat exchange medium layer 22 disposed around the second driving unit, and the second driving unit being used to drive the heat exchange medium of the second heat exchange medium layer 22 to flow inside the liquid cooling cavity 11.

[0052] A second driving unit may also be provided inside the liquid cooling cavity 11. The second driving unit may be located inside the second heat exchange medium layer 22, and the second heat exchange medium layer 22 is arranged around the second driving unit. As an example, the second driving unit may be an impeller or the like. The second driving unit can drive the heat exchange medium of the second heat exchange medium layer 22 to flow in the liquid cooling cavity 11. When the tab portion 220 of the battery cell 200 exchanges heat with the heat exchange medium of the second heat exchange medium layer 22, the flowing heat exchange medium can increase the heat exchange area of ​​the tab portion 220 of the battery cell 200 and the heat exchange medium of the second heat exchange medium layer 22, which is beneficial to improving the heat exchange efficiency. Furthermore, the flow of the heat exchange medium of the second heat exchange medium layer 22 in the liquid cooling cavity 11 can make the tab portion 220 of the battery cell 200 dissipate heat evenly, which can reduce local overheating and further improve the safety and reliability of the liquid cooling device 100.

[0053] In some embodiments of this utility model, the liquid cooling device 100 may include an external filtration and circulation cooling device. The liquid cooling cavity 11 may only have a first heat exchange medium layer 21, and the side wall 12 of the housing 10 may only have a first medium through hole 30. The battery cell 200 can be completely immersed in the first heat exchange medium layer 21, and pure water can submerge the battery cell 200. The external filtration and circulation cooling device can drive the pure water to circulate through the first medium through hole 30. The external filtration and circulation cooling device can continuously circulate and filter the pure water, thereby ensuring the stability of the pure water quality at all times. The external filtration and circulation cooling device can also continuously cool the pure water, thereby ensuring the constant temperature of the pure water at all times, ensuring the stability of the liquid cooling device 100, and ensuring the safety of the liquid cooling device 100 during operation.

[0054] Other configurations and operations of the liquid cooling device 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A liquid cooling device, characterized by, include: A housing (10) defines a liquid cooling cavity (11) for placing battery cells (200); The heat exchange medium is disposed in the liquid cooling cavity (11). The heat exchange medium includes a first heat exchange medium layer (21) and a second heat exchange medium layer (22) that are non-molten. The first heat exchange medium layer (21) is located below the second heat exchange medium layer (22). The first heat exchange medium layer (21) is a pure water layer. The first heat exchange medium layer (21) surrounds the shell portion (210) of the battery cell (200). The second heat exchange medium layer (22) surrounds the tab portion (220) of the battery cell (200). Along the height direction of the liquid cooling device (100), the height dimensions of the first heat exchange medium layer (21) and the height dimensions of the second heat exchange medium layer (22) are adjustable.

2. The liquid cooling device of claim 1, wherein, The sidewall (12) of the housing (10) is formed with a first medium through hole (30) and a second medium through hole (40). The first medium through hole (30) is located below the second medium through hole (40). Both the first medium through hole (30) and the second medium through hole (40) are connected to the liquid cooling cavity (11). Pure water flows into or out of the liquid cooling cavity (11) through the first medium through hole (30), and the heat exchange medium of the second heat exchange medium layer (22) flows into or out of the liquid cooling cavity (11) through the second medium through hole (40).

3. The liquid cooling device of claim 2, wherein, The first medium through hole (30) is provided with a first valve (31), which is used to adjust the opening degree of the first medium through hole (30). The second medium through hole (40) is provided with a second valve (41), which is used to adjust the opening degree of the second medium through hole (40).

4. The liquid cooling device of claim 1, wherein, Also includes: The separator (50) is located between the first heat exchange medium layer (21) and the second heat exchange medium layer (22). The second heat exchange medium layer (22) is an oil layer.

5. The liquid cooling device of claim 1, wherein, Also includes: The constant temperature chamber has a second heat exchange medium layer (22) that is a gas layer, and the chamber body (10) is installed inside the constant temperature chamber.

6. The liquid cooling device of any one of claims 1-5, wherein, Also includes: A heat exchanger is disposed in the liquid cooling cavity (11) and is used to exchange heat with at least one of the first heat exchange medium layer (21) and the second heat exchange medium layer (22) to adjust the temperature of the heat exchange medium.

7. The liquid cooling device of claim 6, wherein, The heat exchanger includes a first heat exchanger (61) and a second heat exchanger (62), wherein the first heat exchanger (61) is used to exchange heat with the first heat exchange medium layer (21) and the second heat exchanger (62) is used to exchange heat with the second heat exchange medium layer (22).

8. The liquid cooling device of any one of claims 1-5, wherein, At least one side wall (12) of the housing (10) is configured as a heat exchange wall for heating or cooling the heat exchange medium.

9. The liquid cooling device of any one of claims 1-5, wherein, Also includes: A first driving part is located in the liquid cooling cavity (11), the first heat exchange medium layer (21) is arranged around the first driving part, and the first driving part is used for driving pure water of the first heat exchange medium layer (21) to flow in the liquid cooling cavity (11).

10. The liquid cooling device of any one of claims 1-5, wherein, Also include: A second driving part is located in the liquid cooling cavity (11), the second heat exchange medium layer (22) is arranged around the second driving part, and the second driving part is used for driving the heat exchange medium of the second heat exchange medium layer (22) to flow in the liquid cooling cavity (11).

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