A two-in-one water-split double-layer structure liquid cooling system

Abstract

The present invention relates to the field of heat dissipation technology, and discloses a two-in-one water-dividing double-layer liquid cooling system. The system comprises: a multi-layer heat dissipation plate, each heat dissipation plate being provided with multiple heat dissipation zones for placing batteries, each heat dissipation zone being provided with a heat dissipation channel, the heat dissipation channel being U-shaped, the heat dissipation plate being provided with a water inlet connected to one side of the heat dissipation channel and a drain connected to the other side of the heat dissipation channel; and a water cooling assembly, the drain end of the water cooling assembly being respectively connected to the water inlet on each heat dissipation plate, the drain end on each heat dissipation plate being connected to the water inlet end of the water cooling assembly, and the water cooling assembly being used to continuously inject water-cooling liquid into the heat dissipation channels of the multi-layer heat dissipation plate simultaneously. The heat dissipation effect of the heat dissipation system of the present invention is better, and the temperature difference generated by the battery is smaller.

Description

Technical Field

[0001] The present invention relates to the field of heat dissipation technology, and in particular to a two-in-one water-separated double-layer structure liquid cooling heat dissipation system. Background Art

[0002] At present, most of the new energy battery systems on the market use a single water cooling plate to dissipate heat in the single battery box, so that all batteries are concentrated on the area of ​​a water cooling plate. Figure 1 shown.

[0003] Because the liquid in the cold plate enters through the water inlet, passes through all battery areas, and then removes heat through the water outlet, heat exchange occurs during this process, causing the water temperature to rise. This results in a temperature difference between the batteries in the water inlet and outlet areas. The larger the area the flow passes through, the more significant the temperature difference. Larger temperature differences can reduce battery charge and discharge performance, and long-term large temperature differences can also shorten the battery life. Summary of the Invention

[0004] The purpose of the present invention is to provide a two-in-one water-separated double-layer structure liquid cooling and heat dissipation system to solve the problem of obvious temperature difference as the flow passes through a larger area in the existing heat dissipation method.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] The present invention provides a two-in-one water-separation double-layer structure liquid cooling and heat dissipation system, the system comprising:

[0007] A multi-layer heat sink, each with multiple heat sink areas for placing batteries. Each heat sink area has a heat sink channel in a U-shaped structure. The heat sink is provided with a water inlet connected to one side of the heat sink channel and a drain port connected to the other side of the heat sink channel.

[0008] Multiple groups of top heat dissipation components, each group of top heat dissipation components is deployed on the top of each layer of batteries;

[0009] A water-cooling assembly, wherein the drainage end of the water-cooling assembly is respectively connected to the water inlet on each layer of the heat sink and the water inlet end of the top heat sink assembly, and the water inlet end of the water-cooling assembly is respectively connected to the drainage end on each layer of the heat sink and the drainage end of the top heat sink assembly. The water-cooling assembly is used to continuously inject water-cooling liquid into the heat dissipation channels of the multiple layers of heat sinks and the top heat sink assembly at the same time.

[0010] Preferably, a plurality of partitions are provided in the heat dissipation channel, and each partition divides the heat dissipation channel into a plurality of mutually parallel sub-channels.

[0011] Preferably, the heat dissipation plate and the partition are both made of heat-conducting materials.

[0012] Preferably, the water inlet and the drain outlet on the same heat sink are located on the same side of the heat sink and between the two middle heat sink areas of the heat sink.

[0013] Preferably, the heat dissipation channel is divided into a water inlet channel and a water discharge channel, each partition is provided with an inner cavity, a first connecting pipe is provided on the side of the heat dissipation plate away from the water inlet, a second connecting pipe and a plurality of third connecting pipes are provided on the side of the heat dissipation plate close to the water inlet, and one end of all the inner cavities is connected to the first connecting pipe;

[0014] The other end of the inner cavity in the drainage side channel is connected to the second connecting pipe, and one end of the second connecting pipe is connected to the water inlet side channel;

[0015] The other end of the inner cavity in the water inlet side channel is communicated with the corresponding third connecting pipe, and each third connecting pipe is communicated with the drainage side channel.

[0016] Preferably, the water cooling assembly includes: a connector arranged on each heat sink, the connector being provided with a water inlet channel and a drainage channel, the water inlet channel being respectively connected to the water inlet and the water inlet end of the top heat dissipation assembly, the drainage channel being respectively connected to the drainage port and the drainage end of the top heat dissipation assembly, all water inlet channels being connected to one water inlet pipe, and all drainage channels being connected to one drainage pipe.

[0017] Preferably, each group of top heat dissipation components includes a plurality of U-shaped heat dissipation covers, each heat dissipation cover is clamped on the top of the plurality of batteries, a heat conducting surface is provided on the inner side wall of each heat dissipation cover, and a heat exchange chamber is provided on one side of each heat dissipation cover;

[0018] A fourth connecting pipe is provided on each layer of the heat dissipation plate, one end of the fourth connecting pipe is connected to the drainage end of the water cooling component, and the other end of the fourth connecting pipe is connected to the water inlet end of the water cooling component. The heat exchange chamber on one side of the heat dissipation cover of all batteries on each layer is connected to the corresponding fourth connecting pipe.

[0019] Preferably, a plurality of heat pipes are provided in each heat dissipation cover, the cold ends of the heat pipes are located in the heat exchange chamber, and the heat pipes in each heat dissipation cover are distributed at equal intervals along the width direction of the heat dissipation cover.

[0020] Preferably, the heat pipe is a flat structure, and the width of the heat pipe in each heat dissipation cover gradually increases from the center to both sides of the heat dissipation cover.

[0021] Preferably, the fourth connecting pipe is provided with a socket, a cannula is inserted into the socket, the cannula is a dual-channel structure, the inner end of the cannula is a blind end, and two through holes are provided on the side wall of the cannula, respectively connected to the two channels of the cannula, and the outer end of the cannula is connected to two hoses respectively connected to the two channels, and the ends of the two hoses away from the cannula are respectively connected to the left and right sides of the heat exchange chamber;

[0022] A limiting block is provided on the inner end of the cannula.

[0023] The beneficial effects of the present invention are concentrated in:

[0024] 1. The present invention provides a multi-layer heat sink and a top heat sink assembly. The heat sink absorbs the heat generated by the bottom of the battery, while the top heat sink absorbs the heat generated by the top of the battery. The water cooling assembly then injects cooling liquid into the multi-layer heat sink and the top heat sink at the same time, quickly removing the heat generated by the battery and improving heat dissipation efficiency. In addition, due to the multi-layer structure design, the number of batteries deployed on each heat sink is relatively small, resulting in better heat dissipation effect.

[0025] 2. The present invention divides the heat dissipation plate into multiple heat dissipation zones. In this case, the heat dissipation channel is shorter, the area through which the water-cooling liquid flows is smaller, and the temperature difference generated by the battery is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a structural diagram of a battery heat dissipation method in the prior art;

[0028] Figure 2 This is a schematic diagram of the overall structure of a two-in-one water-separated double-layer liquid cooling and heat dissipation system provided by one embodiment of the present invention;

[0029] Figure 3 1 is a schematic diagram of the external structure of a heat dissipation plate provided in one embodiment of the present invention;

[0030] Figure 4 is a cross-sectional schematic diagram of a heat dissipation plate provided by one embodiment of the present invention;

[0031] Figure 5 is a cross-sectional schematic diagram of a heat dissipation plate provided in another embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of the back structure of a heat sink provided by another embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the assembly of the heat dissipation plate, battery and top heat dissipation component of the present invention;

[0034] Figure 8 is a bottom view of the heat dissipation cover of the top heat dissipation assembly of the present invention;

[0035] Figure 9 It is a schematic diagram of the internal structure of the heat dissipation cover of the top heat dissipation assembly of the present invention;

[0036] Figure 10 is a schematic diagram of the assembly structure of the fourth connecting pipe and the heat dissipation plate of the present invention;

[0037] Figure 11 1 is a schematic diagram of the assembly structure of the fourth connecting tube and the cannula of the present invention;

[0038] Figure 12 is a temperature distribution cloud diagram of multiple battery side walls of the present invention;

[0039] Figure 13 It is a cloud diagram of the top temperature distribution of multiple batteries of the present invention.

[0040] Legend: 1. Heat sink; 2. Battery; 3. Heat dissipation channel; 4. Water inlet; 5. Drain outlet; 6. Partition; 7. Sub-channel; 8. Inner cavity; 9. First connecting pipe; 10. Second connecting pipe; 11. Third connecting pipe; 12. Connector; 13. Water inlet pipe; 14. Drain pipe; 15. Water inlet side channel; 16. Drain side channel; 17. Heat dissipation cover; 18. Heat transfer surface; 19. Heat exchange chamber; 20. Fourth connecting pipe; 21. Heat pipe; 22. Socket; 23. Insert pipe; 24. Through hole; 25. Hose; 26. Limit block. DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0042] Figure 2 This is a schematic diagram of the overall structure of a two-in-one water-dividing double-layer liquid cooling and heat dissipation system provided by an embodiment of the present invention. Figure 2As shown, this embodiment provides a two-in-one water-separated double-layer structure liquid cooling system, which includes: a multi-layer heat sink 1 and a water cooling component; in this embodiment, two layers of heat sink 1 are preferably used, and the battery 2 is placed on the two layers of heat sink 1, and the two layers of heat sink 1 are then fixedly installed by a mounting frame. The mounting frame is a conventional structure in this field and is not described in detail in this embodiment.

[0043] In this embodiment, each heat sink 1 is provided with multiple heat sinks. In this embodiment, two heat sinks are preferably deployed. The two heat sinks are distributed on the left and right sides of the heat sink 1 in the width direction. The two heat sinks are used to place batteries 2. The heat sink 1 in this embodiment uses a thermally conductive material, such as a copper plate or an aluminum plate. The heat sink 1 has a hollow structure, that is, a heat sink channel 3 is provided in each heat sink. The heat sink 3 has a U-shaped structure. The heat sink 1 is provided with a water inlet 4 connected to one side of the heat sink channel 3 and a drain outlet 5 connected to the other side of the heat sink 3.

[0044] The drainage end of the water cooling component is respectively connected to the water inlet 4 on each layer of the heat sink 1, and the drainage port 5 on each layer of the heat sink 1 is connected to the water inlet end of the water cooling component. The water cooling component is used to continuously inject water-cooling liquid into the heat dissipation channel 3 of the multiple layers of heat sink 1 at the same time; at this time, the water-cooling liquid enters from one end of the heat dissipation channel 3 and is discharged from the other end.

[0045] The present invention sets up a structure of a multi-layer heat sink 1, and the water-cooling component simultaneously injects water-cooling liquid into the multi-layer heat sink 1 to achieve simultaneous heat dissipation of the batteries 2 on the multi-layer heat sink 1. Due to the multi-layer structural design, the number of batteries 2 deployed on each layer of the heat sink 1 is relatively small, and the heat dissipation effect is better; and the heat sink 1 is divided into multiple heat dissipation zones. At this time, the path of the heat dissipation channel 3 is shorter, and the area through which the water-cooling liquid flows is smaller. At this time, the temperature difference generated by the battery 2 is smaller. In this example, the temperature difference of the battery 2 is the temperature difference between the top of the battery 2 and the bottom of the battery 2, and the bottom of the battery 2 is in contact with the heat sink 1.

[0046] As a further optimization of this embodiment, Figure 3 As shown, the water inlet 4 and the drain outlet 5 on the same heat sink 1 are located on the same side of the heat sink 1 and between the two middle heat dissipation areas of the heat sink 1. The water inlet 4 and the drain outlet 5 are arranged on the same side to facilitate the installation of the water cooling component.

[0047] As a further optimization of this embodiment, Figure 4As shown, a plurality of partitions 6 are provided in the heat dissipation channel 3, and each partition 6 divides the heat dissipation channel 3 into a plurality of mutually parallel sub-channels 7. In this embodiment, by providing the partitions 6, the partitions 6 are also made of heat-conducting materials, such as copper plates or aluminum plates. The heat generated by the battery 2 can be transferred to the partitions 6, and then heat exchange is carried out with the partitions 6 through water flow, which can increase the heat exchange area, accelerate the heat dissipation of the battery 2, and quickly take away the heat. In addition, the partitions 6 can support the battery 2 to avoid deformation of the heat dissipation plate 1 due to the weight of the battery 2.

[0048] As a further optimization of this embodiment, the water cooling component includes: a connector 12 arranged on each heat sink 1, and a water inlet channel and a drainage channel are provided on the connector 12. The water inlet channel is connected to the water inlet 4, and the drainage channel is connected to the drainage port 5. All water inlet channels are connected to a water inlet pipe 13, and all drainage channels are connected to a drainage pipe 14.

[0049] In this embodiment, the water cooling assembly also includes a water pump connected to a water inlet pipe 13 and a drain pipe 14. The drain pipe 14 conducts heat through the heat sink fins, which are then removed by a fan. This embodiment simultaneously injects cooling liquid into both heat sinks 1, ensuring that the flow rate of the cooling liquid entering both heat sinks 1 is the same. This ensures that both heat sinks 1 dissipate heat from the batteries 2 synchronously, ensuring that the temperature difference between the two layers of batteries 2 is within a specified range.

[0050] As a further optimization of this embodiment, the heat dissipation channel 3 is divided into a water inlet channel 15 and a drainage channel 16. Although the heat dissipation channel 3 of this application has a shorter path, the temperature of the water coolant is relatively higher near the end of the drainage channel 16 of the heat dissipation channel 3. At this time, the heat exchange efficiency is reduced, which still causes the temperature of the battery 2 near the end of the drainage channel 16 to be higher. The temperature difference at this position is large. In order to further reduce the temperature of the battery 2 near the end of the drainage channel 16. In this embodiment, an inner cavity 8 is provided in each partition 6, such as Figure 5 and Figure 6 As shown, a first connecting pipe 9 is provided on the side of the heat sink 1 away from the water inlet 4, a second connecting pipe 10 and a plurality of third connecting pipes 11 are provided on the side of the heat sink 1 close to the water inlet 4, and one end of all the inner cavities 8 are connected to the first connecting pipe 9;

[0051] The other end of the inner cavity 8 in the drainage side channel 16 is connected to the second connecting pipe 10, and one end of the second connecting pipe 10 is connected to the water inlet side channel 15;

[0052] The other end of the inner cavity 8 located in the water inlet side channel 15 is connected to the corresponding third connecting pipe 11 , and each third connecting pipe 11 is connected to the drainage side channel 16 .

[0053] In this embodiment, since the other end of the inner cavity 8 located in the drainage side channel 16 is connected to the second connecting pipe 10, and one end of the second connecting pipe 10 is connected to the water inlet side channel 15, the inner cavity 8 in the drainage side channel 16 is directly connected to the water inlet 4. The water-cooling liquid injected into the water inlet 4 flows into the inner cavity 8 in the drainage side channel 16, which can effectively reduce the temperature of the battery 2 near the end of the drainage side channel 16 and reduce the temperature difference of the battery 2; and the flow direction of the water-cooling liquid in the inner cavity 8 is opposite to the flow direction of the water-cooling liquid in the heat dissipation channel 3 (such as Figure 6 The two arrows in the diagram (the filled arrow represents the flow direction of the water-cooling liquid in the inner cavity 8, and the unfilled arrow represents the flow direction of the water-cooling liquid in the heat dissipation channel 3) have different flow directions. These two different flow directions can make the heat dissipation of the battery 2 more uniform, making the temperature distribution of the battery 2 more uniform, and significantly reducing the temperature of the battery 2. This improves the temperature consistency of the entire battery 2, better meeting the working performance and life of the battery 2.

[0054] In this embodiment, the heat generated by the battery is mainly generated near the positive and negative electrodes of the battery. Figure 1 For example, the top of the battery is hot, and the heat is transferred from the top to the bottom, where the heat is relatively low. However, the heat sink can only dissipate heat from the bottom of the battery, so the heat from the top needs to be transferred to the bottom to be dissipated. Therefore, it is necessary to further improve the heat dissipation efficiency of the top of the battery.

[0055] As a further optimization of this embodiment, Figure 7 As shown, the heat dissipation system of this embodiment also includes: multiple groups of top heat dissipation components, each group of top heat dissipation components is deployed on the top of each layer of batteries 2, the drainage end of the water cooling component is respectively connected with the water inlet 4 on each layer of heat dissipation plate 1 and the water inlet end of the top heat dissipation component, the water inlet end of the water cooling component is respectively connected with the drainage port 5 on each layer of heat dissipation plate 1 and the drainage end of the top heat dissipation component, and the water cooling component is used to continuously inject water-cooling liquid into the heat dissipation channel 3 of the multi-layer heat dissipation plate 1 and the top heat dissipation component at the same time.

[0056] Specifically, each set of top heat dissipation components includes several heat dissipation covers 17 in a U-shaped structure, such as Figure 8 As shown, each heat dissipation cover 17 is clamped on the top of multiple batteries 2, and a heat conducting surface 18 is provided on the inner side wall of each heat dissipation cover 17. A heat exchange chamber 19 is provided on one side of each heat dissipation cover 17. In this embodiment, each heat dissipation plate 1 is divided into two heat dissipation areas, on the front and back sides of the heat dissipation plate 1, as shown in FIG. Figure 1 and 7 As shown, a heat dissipation zone is provided with four rows and six columns, with a total of 24 batteries 2. In this embodiment, six heat dissipation covers 17 are deployed in a heat dissipation zone, and each heat dissipation cover 17 can hold four batteries 2;

[0057] Each heat sink 1 is provided with a fourth connecting pipe 20, such as Figure 10 As shown, the fourth connecting pipe 20 of this embodiment can be directly fixed in the middle position of the heat dissipation plate 1; one end of the fourth connecting pipe 20 is connected to the drainage end of the water cooling component, and the other end of the fourth connecting pipe 20 is connected to the water inlet end of the water cooling component. The heat exchange chamber 19 on one side of the heat dissipation cover 17 of all batteries 2 on each layer is connected to the corresponding fourth connecting pipe 20.

[0058] Therefore, by injecting water-cooling liquid into the heat exchange chamber 19, the heat generated by the top of the battery 2 is transferred to the heat exchange chamber 19 for heat exchange with the water-cooling liquid, which can promptly remove the heat from the top of the battery 2. This embodiment dissipates heat from the top and bottom of the battery 2 at the same time, which can quickly remove the heat generated by the battery 2 and improve the heat dissipation efficiency. Moreover, only the water-cooling liquid is introduced into the heat exchange chamber 19, the water flow path is short, the required water pressure is low, and it can also ensure that the temperature difference generated by the batteries 2 in different areas is small.

[0059] As a further optimization of this embodiment, in order to quickly transfer heat from the top of the battery 2 to the heat exchange chamber 19, this embodiment provides a plurality of heat pipes 21 within each heat dissipation cover 17. The cold end of each heat pipe 21 is located within the heat exchange chamber 19, and the heat pipes 21 within each heat dissipation cover 17 are evenly spaced along the width of the heat dissipation cover 17. The heat pipe 21 is an unpowered, self-driven heat transfer device that utilizes the working fluid to absorb heat and vaporize in the evaporation section and release heat and condense in the condensation section. Its structure mainly consists of a tube shell, a liquid wick, and end caps. The interior is filled with an appropriate amount of working liquid and sealed under vacuum conditions. This design provides efficient heat transfer performance and good reliability.

[0060] Therefore, the heat at the top of the battery 2 can be quickly transferred to the heat exchange chamber 19 through the heat pipe 21, so that the heat can be driven by the water-cooling liquid flowing in the heat exchange chamber 19.

[0061] As a further optimization of this embodiment, the heat pipe 21 is a flat structure, and the width of the heat pipe 21 in each heat dissipation cover 17 gradually increases from the center to the sides of the heat dissipation cover 17. Since the closer to the positive and negative terminals of the battery 2, the higher the temperature generated, the closer to the positive and negative terminals of the battery 2, the greater the width of the heat pipe 21, the higher the heat conduction effect, and the faster the heat generated by the positive and negative terminals of the battery 2 is taken away; secondly, the flat design of the heat pipe 21 can make the heat dissipation cover 17 thinner and lighter, which is easier to install and has low cost.

[0062] As a further optimization of this embodiment, in order to ensure that the water-cooling liquid of the fourth connecting pipe 20 can flow through all the heat dissipation chambers in sequence, the fourth connecting pipe 20 is provided with a plug hole 22, such as Figure 11As shown, a cannula 23 is inserted into the socket 22, and the cannula 23 has a double-channel structure. The inner end of the cannula 23 is a blind end, and two through holes 24 are respectively connected to the two channels of the cannula 23 on the side wall of the cannula 23. The outer end of the cannula 23 is connected to two hoses 25 respectively connected to the two channels, and the ends of the two hoses 25 away from the cannula 23 are respectively connected to the left and right sides of the heat exchange chamber 19.

[0063] In this embodiment, the two ends of the two hoses 25 can be connected to the heat exchange chamber 19 and the channel of the insert tube 23 by screwing. After the two hoses 25 are respectively connected to the heat exchange chamber 19 and the insert tube 23, the insert tube 23 is pressed downward, and the through hole 24 on the insert tube 23 moves from the insertion hole 22 to the fourth connecting tube 20. Since the inner end of the insert tube 23 is a blind end, when the insert tube 23 is fully inserted into the fourth connecting tube 20, the insert tube 23 is equivalent to a valve that blocks the fourth connecting tube 20. The water-cooling liquid can only flow from the through hole 24 on the insert tube 23 into the channel of the insert tube 23, and then flow from one hose 25 into the heat exchange chamber 19, and then flow into the other hose 25 through the heat exchange chamber 19, and finally flow back to the fourth connecting tube 20 from the other channel of the insert tube 23.

[0064] When maintaining a certain heat dissipation cover 17, the insert tube 23 can be pulled out, and the two through holes 24 of the insert tube 23 can be moved into the socket 22, so that the two through holes 24 are blocked, while the fourth connecting pipe 20 is still in a connected state; therefore, when maintaining a certain heat dissipation cover 17, the operation of the top heat dissipation component will not be affected, thereby improving the practicality of the heat dissipation system.

[0065] In this embodiment, a limit block 26 is provided on the inner end of the insertion tube 23. The setting of the limit block 26 can prevent the insertion tube 23 from being completely pulled out, thereby playing a limiting role.

[0066] This embodiment tests the performance of a two-in-one water-split double-layer liquid cooling system. Figure 12 and Figure 13 As shown, Figure 12 It is the temperature distribution cloud map of multiple battery side walls. Figure 13 This is a cloud diagram of the top temperature distribution of multiple batteries. Therefore, the two-in-one water-dividing double-layer liquid cooling system of this embodiment can ensure that the temperature difference between the maximum and minimum temperatures of the entire battery is within 1.64°C, improving the temperature consistency of the entire battery pack and better meeting the operating performance and lifespan of the battery pack.

[0067] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A two-in-one water-dividing double-layer structure liquid cooling system, characterized in that: The system comprises: A multi-layer heat sink, each with multiple heat sink areas for placing batteries. Each heat sink area has a heat sink channel in a U-shaped structure. The heat sink is provided with a water inlet connected to one side of the heat sink channel and a drain port connected to the other side of the heat sink channel. Top heat dissipation component, deployed on top of the battery; A water cooling assembly, wherein the drainage end of the water cooling assembly is respectively connected to the water inlet on each layer of the heat sink and the water inlet end of the top heat sink assembly, and the water inlet end of the water cooling assembly is respectively connected to the drainage port on each layer of the heat sink and the drainage end of the top heat sink assembly, and the water cooling assembly is used to continuously inject water cooling liquid into the heat dissipation channels of the multiple heat sinks and the top heat sink assembly at the same time; A plurality of partitions (6) are provided in the heat dissipation channel (3), and each partition (6) divides the heat dissipation channel (3) into a plurality of mutually parallel sub-channels (7); The water inlet (4) and the drain outlet (5) on the same heat sink (1) are located on the same side of the heat sink (1) and between the two middle heat sink areas of the heat sink (1); The heat dissipation channel (3) is divided into a water inlet side channel (15) and a water discharge side channel (16), an inner cavity (8) is provided in each partition (6), a first connecting pipe (9) is provided on the side of the heat dissipation plate (1) away from the water inlet (4), a second connecting pipe (10) and a plurality of third connecting pipes (11) are provided on the side of the heat dissipation plate (1) close to the water inlet (4), and one end of all the inner cavities (8) is connected to the first connecting pipe (9); The other end of the inner cavity (8) located in the drainage side channel (16) is connected to the second connecting pipe (10), and one end of the second connecting pipe (10) is connected to the water inlet side channel (15); The other end of the inner cavity (8) located in the water inlet side channel (15) is connected to the corresponding third connecting pipe (11), and each third connecting pipe (11) is connected to the drainage side channel (16).

2. The two-in-one water-separating double-layer structure liquid cooling and heat dissipation system according to claim 1 is characterized in that: The heat dissipation plate (1) and the partition plate (6) are both made of heat-conducting materials.

3. The two-in-one water-separating double-layer structure liquid cooling and heat dissipation system according to claim 1 is characterized in that: The water cooling assembly comprises: a connector (12) arranged on each heat dissipation plate (1), the connector (12) being provided with a water inlet channel and a drainage channel, the water inlet channel being respectively connected to the water inlet (4) and the water inlet end of the top heat dissipation assembly, the drainage channel being respectively connected to the drainage port (5) and the drainage end of the top heat dissipation assembly, all the water inlet channels being connected to a water inlet pipe (13), and all the drainage channels being connected to a drainage pipe (14).

4. The two-in-one water-separating double-layer structure liquid cooling and heat dissipation system according to claim 1 or 3, characterized in that: Each group of top heat dissipation components includes a plurality of U-shaped heat dissipation covers (17), each heat dissipation cover (17) is clamped on the top of the plurality of batteries (2), a heat conducting surface (18) is provided on the inner side wall of each heat dissipation cover (17), and a heat exchange chamber (19) is provided on one side of each heat dissipation cover (17); Each layer of heat dissipation plate (1) is provided with a fourth connecting pipe (20), one end of the fourth connecting pipe (20) is connected to the drainage end of the water cooling component, and the other end of the fourth connecting pipe (20) is connected to the water inlet end of the water cooling component. The heat exchange chamber (19) on one side of the heat dissipation cover (17) on all batteries (2) on each layer is connected to the corresponding fourth connecting pipe (20).

5. The two-in-one water-separating double-layer structure liquid cooling and heat dissipation system according to claim 4 is characterized in that: A plurality of heat pipes (21) are provided in each heat dissipation cover (17), the cold ends of the heat pipes (21) are located in the heat exchange chamber (19), and the heat pipes (21) in each heat dissipation cover (17) are distributed at equal intervals along the width direction of the heat dissipation cover (17).

6. The two-in-one water-separating double-layer structure liquid cooling and heat dissipation system according to claim 5, characterized in that: The heat pipe (21) is a flat structure, and the width of the heat pipe (21) in each heat dissipation cover (17) gradually increases from the center to both sides of the heat dissipation cover (17).

7. The two-in-one water-separating double-layer structure liquid cooling and heat dissipation system according to claim 5, characterized in that: The fourth connecting pipe (20) is provided with a socket (22), a socket (23) is inserted into the socket (22), the socket (23) is a double-channel structure, the inner end of the socket (23) is a blind end, and two through holes (24) are respectively connected to the two channels of the socket (23) on the side wall of the socket (23), and the outer end of the socket (23) is connected to two hoses (25) respectively connected to the two channels, and the ends of the two hoses (25) away from the socket (23) are respectively connected to the left and right sides of the heat exchange chamber (19); A limit block (26) is provided on the inner end of the insertion tube (23).

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