A liquid cooling plate structure of a battery plate, a power battery system and a vehicle

Abstract

The utility model discloses a kind of liquid cooling plate structure of battery plate, power battery system and vehicle, comprising: cooling plate and cooling pipeline structure;First pipeline and second pipeline are along first direction extension setting;Third pipeline and fourth pipeline are located between first pipeline and second pipeline;And third pipeline and fourth pipeline are intersected as "X";First pipeline, second pipeline, third pipeline and fourth pipeline are provided with valve assembly;Cooling liquid flows into by the first end of first pipeline, flows out to water inlet side by the second end of third pipeline and second pipeline;Cooling liquid flows out by the second end of first pipeline after passing through cooling plate, flows out by the first end of fourth pipeline and second pipeline;Or, cooling liquid flows into to water inlet side by the first end of second pipeline;Cooling liquid flows out by the first end of first pipeline after passing through cooling plate.The liquid cooling plate structure provided by the utility model is simple in structure, and without distinguishing inlet and outlet, greatly benefit vehicle water pipe design and arrangement.

Description

Technical Field

[0001] This utility model relates to the field of battery control technology, and in particular to a liquid cooling plate structure for a battery panel, a power battery system, and a vehicle. Background Technology

[0002] For liquid-cooled power batteries, in order to achieve better cooling effect, the flow channels on the liquid cooling plate are usually designed with an asymmetrical structure, so the inlet and outlet must be distinguished.

[0003] When connecting water pipes, it is impossible to arrange them nearby; the water inlet pipe must be connected to the water inlet, which is not conducive to the pipeline layout of the vehicle assembly plant, thus affecting work efficiency. Utility Model Content

[0004] This utility model provides a liquid cooling plate structure for a battery panel, a power battery system, and a vehicle. By setting a pipe structure on the liquid cooling plate and installing valve assemblies on each pipe, the structure is simple and low-cost by simply adding valve assemblies. Moreover, it eliminates the need to distinguish between inlet and outlet water outlets, which greatly facilitates the design and layout of the vehicle's water pipes. During production and after-sales assembly, there is no need to distinguish between them, thereby improving assembly efficiency.

[0005] According to a first aspect of the present invention, a liquid cooling plate structure for a battery panel is provided, comprising: A cooling plate and cooling pipe structure; the cooling plate includes an inlet side and an outlet side; the cooling pipe structure includes at least one set of pipes, the set of pipes including a first pipe, a second pipe, a third pipe and a fourth pipe; Both the first pipe and the second pipe extend along the first direction; The third pipe and the fourth pipe are both located between the first pipe and the second pipe; and the third pipe and the fourth pipe intersect in an "X" shape; The first end of the third pipe is connected to the path of the first pipe, and the second end of the third pipe is connected to the path of the second pipe. The first end of the fourth pipe is connected to the path of the first pipe, and the second end of the fourth pipe is connected to the path of the second pipe. The first pipe, the second pipe, the third pipe, and the fourth pipe are all equipped with valve assemblies; Coolant flows in from the first end of the first pipe, flows out through the second ends of the third pipe and the second pipe to the water inlet side; after passing through the cooling plate, the coolant flows out from the second end of the first pipe, and flows out through the first end of the fourth pipe and the second pipe. Alternatively, the coolant flows into the inlet side from the first end of the second pipe; after passing through the cooling plate, the coolant flows out from the first end of the first pipe. Optionally, the valve assemblies are all located on the path of their respective pipes, excluding the connection points.

[0006] Optionally, the valve assembly includes a first valve unit, a second valve unit, a third valve unit, and a fourth valve unit; The first pipeline is equipped with the first valve unit, and the first valve unit is located between the intersection of the third pipeline and the first pipeline and the intersection of the fourth pipeline and the first pipeline; The second pipeline is equipped with the second valve unit, and the second valve unit is located between the intersection of the fourth pipeline and the second pipeline and the intersection of the third pipeline and the second pipeline; The third pipe is equipped with the third valve unit, and the third valve unit is located between the intersection of the third pipe and the first pipe and the intersection of the third pipe and the second pipe; The fourth pipe is equipped with the fourth valve unit, and the fourth valve unit is located between the intersection of the fourth pipe and the second pipe and the intersection of the fourth pipe and the first pipe.

[0007] Optionally, the first valve unit, the second valve unit, the third valve unit, and the fourth valve unit each include: an opening assembly, a ball assembly, and an elastic assembly; The open end of the opening component is connected to the first end of the spherical component, the second end of the spherical component is connected to the first end of the elastic component, and the second end of the elastic component is connected to the path of the corresponding pipe.

[0008] Optionally, the opening end of the opening assembly of the first valve unit faces the location of the intersection of the third pipe and the first pipe. The opening end of the opening assembly of the second valve unit faces the location of the intersection of the third pipe and the second pipe; The opening end of the opening assembly of the third valve unit faces the location of the intersection of the third pipe and the first pipe. The opening end of the opening assembly of the fourth valve unit faces the location of the intersection of the fourth pipe and the first pipe.

[0009] Optionally, the first pipe, the second pipe, the third pipe, and the fourth pipe are all made of aluminum alloy.

[0010] Optionally, the opening pressure of the first valve unit, the second valve unit, the third valve unit, and the fourth valve unit is less than or equal to 2 kPa.

[0011] Optionally, the valve assembly includes a spring-loaded check valve.

[0012] According to a second aspect of the present invention, a power battery system is provided, including a cell module and a liquid-cooled plate structure of a battery plate as described in any of the first aspects of the present invention.

[0013] According to a third aspect of the present invention, a vehicle is provided, including the power battery system described in the second aspect of the present invention.

[0014] This utility model discloses a liquid-cooled plate structure for a solar panel, comprising: a cooling plate and a cooling pipe structure laid on the surface of the cooling plate; the cooling pipe structure includes at least one set of pipes, the pipe set including a first pipe, a second pipe, a third pipe and a fourth pipe; the first pipe and the second pipe both extend along a first direction; the third pipe and the fourth pipe are both located between the first pipe and the second pipe; and the third pipe and the fourth pipe intersect in an "X" shape; the first end of the third pipe is connected to the path of the first pipe, and the second end of the third pipe is connected to the path of the second pipe; the first end of the fourth pipe is connected to the path of the first pipe, and the second end of the fourth pipe is connected to the path of the second pipe; the first pipe, the second pipe, the third pipe and the fourth pipe are all provided with valve assemblies; coolant flows in from the first end of the first pipe and flows out from the first end of the second pipe, or, coolant flows in from the first end of the second pipe and flows out from the first end of the first pipe. The liquid cooling plate structure of the battery panel provided by this utility model has a pipe structure set on the liquid cooling plate and a valve assembly set on each pipe. The structure is simple and low-cost by simply adding valve assemblies. Moreover, there is no need to distinguish between inlet and outlet water ports, which greatly facilitates the design and layout of water pipes in the whole vehicle. During production and after-sales assembly, there is no need to distinguish them, thereby improving assembly efficiency.

[0015] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the liquid cooling plate structure of a solar panel in the prior art; Figure 2 This is a schematic diagram of a liquid cooling plate structure for a battery panel provided in an embodiment of this utility model; Figure 3 This is a schematic diagram of another liquid cooling plate structure of a battery panel provided in this embodiment of the present invention; Figure 4 This is a schematic diagram of another liquid cooling plate structure of a battery panel provided in this embodiment of the present invention; Figure 5 This is a schematic diagram of the coolant flow direction provided in this embodiment of the utility model; Figure 6 This is a schematic diagram of the coolant flow direction provided in an embodiment of this utility model. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0021] Figure 1 This is a schematic diagram of the liquid cooling plate structure of a solar panel in the prior art, for reference. Figure 1In existing technologies, adding silkscreen markings ("exit" and "inlet") to the panel is a method that is often unclear. Furthermore, after repeated use, the panel easily becomes covered in oil and grime, obscuring the markings. This also hinders the convenient placement of water pipes, requiring the inlet pipe to be connected directly to the water inlet, which is inconvenient for vehicle assembly line piping. Incorrect pipe connections can also prevent the desired cooling effect, leading to overheating of the battery. Therefore, this invention provides a liquid-cooled plate structure for the battery panel. Figure 2 This is a schematic diagram of a liquid cooling plate structure for a battery panel according to an embodiment of this utility model. (Refer to...) Figure 2 The cooling system includes a liquid cooling plate 1 and a cooling pipe structure; the cooling plate 1 includes an inlet side 11 and an outlet side 12; the cooling pipe structure includes at least one set of pipe groups 2, the pipe group 2 includes a first pipe 21, a second pipe 22, a third pipe 23 and a fourth pipe 24; the first pipe 21 and the second pipe 22 are both extended along the first direction Z; The third pipe 23 and the fourth pipe 24 are both located between the first pipe 21 and the second pipe 22; and the third pipe 23 and the fourth pipe 24 intersect in an "X" shape; the first end of the third pipe 23 is connected to the path of the first pipe 21, and the second end of the third pipe 23 is connected to the path of the second pipe 22. The first end of the fourth pipe 24 is connected to the path of the first pipe 21, and the second end of the fourth pipe 24 is connected to the path of the second pipe 22. Valve assemblies 3 are installed in the first pipe 21, the second pipe 22, the third pipe 23 and the fourth pipe 24; Coolant flows in from the first end of the first pipe 21, flows out through the second end of the third pipe 23 and the second pipe 22 to the water inlet side 11; after passing through the cooling plate 1, coolant flows out from the second end of the first pipe 21, flows out through the fourth pipe 24 and the first end of the second pipe 22. Alternatively, the coolant flows into the water inlet side 11 from the first end of the second pipe 22; after passing through the cooling plate 1, the coolant flows out from the first end of the first pipe 21. Specifically, the cooling plate 1 is a metal plate with pipes inside for coolant flow. It is usually installed between or at the bottom of the battery modules, in direct or indirect contact with the battery. Its main function is to remove the heat generated by the battery and maintain the battery within its optimal operating temperature range. A cooling pipe structure is laid on the surface of the cooling plate 1. The cooling pipe structure includes at least one set of pipe groups 2. In this embodiment of the present invention, a set of pipe groups is shown as an example. The pipe group 2 includes a first pipe 21, a second pipe 22, a third pipe 23 and a fourth pipe 24. The first pipe 21 and the second pipe 22 are parallel to each other and extend along the first direction Z. The third pipe 23 and the fourth pipe 24 are both located between the first pipe 21 and the second pipe 22, and the third pipe 23 and the fourth pipe 24 intersect in an "X" shape. It should be noted here that... Figure 2 The diagram shows that the third pipe 23 and the fourth pipe 24 intersect, but in reality, the third pipe 23 and the fourth pipe 24 are not connected to each other, that is, the third pipe 23 and the fourth pipe 24 are independent pipes. The first end of the third pipe 23 is connected to the path of the first pipe 21, that is, the third pipe 23 is in... Figure 2 The upper left corner of the third pipe 23 connects to the first pipe 21, and the second end of the third pipe 23 connects to the path of the second pipe 22. That is, the third pipe 23 is located in... Figure 2 The lower right corner connects to the second pipe 22; The first end of the fourth pipe 24 is connected to the path of the first pipe 21, that is, the fourth pipe 24 is in... Figure 2 The upper right corner of the fourth pipe 24 connects to the first pipe 21, and the second end of the fourth pipe 24 connects to the path of the second pipe 22. That is, the fourth pipe 24 is located in... Figure 2 The lower left corner connects to the second pipe 22; The first pipe 21, the second pipe 22, the third pipe 23, and the fourth pipe 24 are all equipped with valve assemblies 3; the valve assemblies 3 are devices used to control the flow direction of the coolant; by installing valve assemblies 3 on each pipe, the coolant flows in from the first end (left end) of the first pipe 21, flows out through the second ends of the third pipe 23 and the second pipe 22 to the water inlet side 11; the coolant flows through the pipes inside the cooling plate 1 ( Figure 2 (Not shown) After flowing out from the outlet side 12 of the cooling plate 1, it passes through the fourth pipe 24 and finally flows out from the first end (left end) of the second pipe 22; Alternatively, the coolant flows from the first end (left end) of the second pipe 22 to the water inlet side 11, and the coolant passes through the pipes inside the cooling plate 1 ( Figure 2 (Not shown) After flowing out from the outlet side 12 of the cooling plate 1, it passes through the first pipe 21 and finally flows out from the first end (left end) of the first pipe 21.

[0022] This utility model embodiment, through the ingenious design of the first, second, third, and fourth pipes, and the installation of valve components in each pipe, eliminates the need to distinguish between the inlet and outlet of the liquid cooling plate. Regardless of whether the coolant flows in from the first end of the first pipe or from the second pipe, water can enter from the inlet side of the cooling plate and exit from the outlet side. The structure is simple, the cost is low, and the work efficiency of installing water pipes is greatly improved.

[0023] Continue to refer to Figure 2 Optionally, valve assemblies 3 are all located on the path of the corresponding pipeline, except for the connection point.

[0024] Specifically, valve assemblies 3 are all located on the corresponding pipe paths, except for connection points. For example, valve assembly 3 of the first pipe 21 is located near the middle of the first pipe 21. Valve assembly 3 is not allowed to be located at the connection point between the third pipe 23 and the first pipe 21, or at the connection point between the fourth pipe 24 and the first pipe 21. Figure 2 In the middle, the upper left and upper right corners; the valve assembly 3 of the second pipe 22 is located near the middle of the second pipe 22, and it is not allowed to set the valve assembly 3 at the connection point between the fourth pipe 24 and the second pipe 22 or the connection point between the third pipe 23 and the second pipe 22, that is Figure 2 The bottom left and bottom right corners.

[0025] Optional, Figure 3 This is a schematic diagram of another liquid cooling plate structure for a battery panel provided in this embodiment of the present invention, for reference. Figure 3 The valve assembly 3 includes a first valve unit 31, a second valve unit 32, a third valve unit 33, and a fourth valve unit 34; The first pipe 21 is provided with a first valve unit 31, and the first valve unit 31 is located between the intersection of the third pipe 23 and the first pipe 21 and the intersection of the fourth pipe 24 and the first pipe 21. The second pipe 22 is provided with a second valve unit 32, and the second valve unit 32 is located between the intersection of the fourth pipe 24 and the second pipe 22 and the intersection of the third pipe 23 and the second pipe 22. The third pipe 23 is equipped with a third valve unit 33, and the third valve unit 32 is located between the intersection of the third pipe 23 and the first pipe 21 and the intersection of the third pipe 23 and the second pipe 22; The fourth pipe 24 is provided with a fourth valve unit 34, and the fourth valve unit 34 is located between the intersection of the fourth pipe 24 and the second pipe 22 and the intersection of the fourth pipe 24 and the first pipe 21.

[0026] For details, please refer to Figure 3 Valve assembly 3 includes a first valve unit 31, a second valve unit 32, a third valve unit 33, and a fourth valve unit 34. The first valve unit 31 is located between the intersection of the third pipe 23 and the first pipe 21 and the intersection of the fourth pipe 24 and the first pipe 21, and the first valve unit 31 is not allowed to be located at the intersection. The second valve unit 32 is located between the intersection of the fourth pipe 24 and the second pipe 22 and the intersection of the third pipe 23 and the second pipe 22, and the second valve unit 32 is not allowed to be located at the intersection. The third valve unit 33 is located between the intersection of the third pipe 23 and the first pipe 21 and the intersection of the third pipe 23 and the fourth pipe 24, and the third valve unit 33 is not allowed to be located at the intersection. The fourth valve unit 34 is located between the intersection of the fourth pipe 24 and the second pipe 22 and the intersection of the third pipe 23 and the fourth pipe 24, and the fourth valve unit 34 is not allowed to be located at the intersection.

[0027] Optional, Figure 4 This is a schematic diagram of another liquid cooling plate structure for a battery panel provided in this embodiment of the present invention, for reference. Figure 4 The first valve unit 31, the second valve unit 32, the third valve unit 33 and the fourth valve unit 34 each include: an opening assembly A, a ball assembly B and an elastic assembly C; The open end of the open component A is connected to the first end of the spherical component B, the second end of the spherical component B is connected to the first end of the elastic component C, and the second end of the elastic component C is connected to the path of the corresponding pipe.

[0028] Specifically, the first valve unit 31, the second valve unit 32, the third valve unit 33 and the fourth valve unit 34 each include: an opening assembly A, a ball-shaped assembly B and an elastic assembly C; The elastic component C is used to hold the spherical component B in place when there is coolant impact, so that the coolant can only flow out from the open end of the open component A; the specific principle is as follows; Figure 5 This is a schematic diagram of the coolant flow direction provided in an embodiment of this utility model, for reference. Figure 5 When the first end (left end) of the second pipe 22 is connected to the water inlet pipe, as the coolant flows towards the fourth valve unit 34, the elastic component C firmly holds the spherical component B in place. At this time, the coolant cannot pass through the fourth valve unit 34. Therefore, the coolant can only flow from the second valve unit 32 and into the water inlet side 11 of the cooling plate 1. The coolant then passes through the internal pipes of the cooling plate 1 ( Figure 5 After (not shown), the coolant flows out from the outlet side 12 of the cooling plate 1. Since the first end of the second pipe 22 is connected to the inlet pipe and the first end of the first pipe 21 is connected to the outlet pipe, the pressure at the inlet is equal to the sum of the pressure at the outlet and the resistance of the cooling plate 1. Therefore, the inlet pressure is greater than the outlet pressure, so the fourth valve unit 34 cannot be opened. The coolant flowing out from the outlet side 12 of the cooling plate 1 can only flow to the first valve unit 31 and finally flows out from the first end (left end) of the first pipe 21. Figure 5 The red arrow in the middle indicates the direction of coolant flow.

[0029] Figure 6 This is a schematic diagram of the coolant flow direction provided in an embodiment of this utility model, for reference. Figure 6When the first end (left end) of the first pipe 21 is connected to the water inlet pipe, the coolant flows through the first valve unit 31. Because the elastic component C firmly holds the spherical component B, the coolant can only flow to the third valve unit 33 and then into the second end (right end) of the second pipe 22 from the third pipe 33. From the second end (right end) of the second pipe 22, the coolant flows into the water inlet side 11 of the cooling plate 1. The coolant then passes through the internal pipes of the cooling plate 1 ( Figure 6 After the coolant flows out from the outlet side 12 of the cooling plate 1 (not shown), the first valve unit 31 cannot open due to the action of the elastic component C. At this time, the coolant can only flow to the fourth valve unit 34. After passing through the fourth valve unit 34, because the pressure at the inlet (the first end of the first pipe 21) is greater than the pressure at the outlet (the first end of the second pipe 22), the second valve unit 32 cannot open. After passing through the fourth valve unit 34, the coolant finally flows out from the first end (left end) of the second pipe 22. Figure 6 The red arrows indicate the flow direction of coolant entering the water inlet side 11 of the cooling plate, and the blue arrows indicate the flow direction of coolant exiting the water outlet side 12 of the cooling plate. It should be noted that the first valve unit 31, the second valve unit 32, the third valve unit 33 and the fourth valve unit 34 have the same structure, the only difference being the placement and orientation.

[0030] Optional, continue to refer to Figure 4 The opening end of the opening assembly of the first valve unit 31 faces the location of the intersection of the third pipe 23 and the first pipe 21. The opening end of the opening assembly of the second valve unit 32 faces the location of the intersection of the third pipe 23 and the second pipe 22. The opening end of the opening assembly of the third valve unit 33 faces the intersection of the third pipe 23 and the first pipe 21. The opening end of the opening assembly of the fourth valve unit 34 faces the intersection of the fourth pipe 24 and the first pipe 21.

[0031] For details, please refer to Figure 4 The opening end of the opening assembly of the first valve unit 31 faces the left end of the first pipe 21 so that the coolant can only flow from right to left. The opening end of the opening assembly of the second valve unit 32 faces the right end of the second pipe 21 so that the coolant can only flow from left to right. The opening end of the opening assembly of the third valve unit 33 faces the connection point between the third pipe 33 and the first pipe 21, so that the coolant can only flow from the lower right corner to the upper left corner of the third pipe 23. The opening end of the opening assembly of the fourth valve unit 34 faces the connection point between the fourth pipe 34 and the first pipe 21, so that the coolant can only flow from the lower left corner to the upper right corner of the fourth pipe 24.

[0032] Optionally, the first pipe 21, the second pipe 22, the third pipe 23 and the fourth pipe 24 are all made of aluminum alloy.

[0033] Specifically, using aluminum alloy material makes the pipes harder, lighter, and cheaper.

[0034] Optional, continue to refer to Figure 4 The opening pressure of the first valve unit 31, the second valve unit 32, the third valve unit 33 and the fourth valve unit 34 is less than or equal to 2 kPa.

[0035] Optional, continue to refer to Figure 2 Valve assembly 3 includes a spring-loaded check valve.

[0036] Based on the same concept, this utility model embodiment also provides a power battery system, including a cell module and a liquid cooling plate structure of the battery plate in any of the above utility model embodiments.

[0037] The power battery system provided in this embodiment of the present invention can achieve the same technical effects as any of the above embodiments of the present invention, therefore, it will not be described in detail here.

[0038] Based on the same concept, this utility model embodiment also provides a vehicle including the power battery system described in the above utility model embodiment.

[0039] The vehicle provided in this embodiment of the present invention can achieve the same technical effects as those achieved in the above-described embodiments of the present invention, therefore, it will not be described in detail here.

[0040] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A liquid-cooled plate structure for a solar panel, characterized in that, include: Cooling plate (1) and cooling pipe structure; the cooling plate (1) includes an inlet side (11) and an outlet side (12); the cooling pipe structure includes at least one set of pipe groups (2), the pipe group (2) includes a first pipe (21), a second pipe (22), a third pipe (23) and a fourth pipe (24); Both the first pipe (21) and the second pipe (22) extend along the first direction; The third pipe (23) and the fourth pipe (24) are both located between the first pipe (21) and the second pipe (22); and the third pipe (23) and the fourth pipe (24) intersect in an "X" shape; The first end of the third pipe (23) is connected to the path of the first pipe (21), and the second end of the third pipe (23) is connected to the path of the second pipe (22); The first end of the fourth pipe (24) is connected to the path of the first pipe (21), and the second end of the fourth pipe (24) is connected to the path of the second pipe (22). The first pipe (21), the second pipe (22), the third pipe (23) and the fourth pipe (24) are all equipped with valve assemblies (3); The coolant flows in from the first end of the first pipe (21), flows out through the second end of the third pipe (23) and the second pipe (22) to the water inlet side (11); after passing through the cooling plate (1), the coolant flows out from the second end of the first pipe (21), flows out through the first end of the fourth pipe (24) and the second pipe (22); Alternatively, the coolant flows into the water inlet side (11) from the first end of the second pipe (22); after passing through the cooling plate (1), the coolant flows out from the first end of the first pipe (21).

2. The liquid cooling plate structure of the battery panel according to claim 1, characterized in that, The valve assemblies (3) are all located on the path of the corresponding pipeline except for the connection point.

3. The liquid cooling plate structure of the battery panel according to claim 1, characterized in that, The valve assembly includes a first valve unit (31), a second valve unit (32), a third valve unit (33), and a fourth valve unit (34). The first pipe (21) is provided with the first valve unit (31), and the first valve unit (31) is located between the intersection of the third pipe (23) and the first pipe (21) and the intersection of the fourth pipe (24) and the first pipe (21); The second pipe (22) is provided with the second valve unit (32), and the second valve unit (32) is located between the intersection of the fourth pipe (24) and the second pipe (22) and the intersection of the third pipe (23) and the second pipe (22); The third pipe (23) is provided with the third valve unit (33), and the third valve unit (33) is located between the intersection of the third pipe (23) and the first pipe (21) and the intersection of the third pipe (23) and the second pipe (22); The fourth pipe (24) is provided with the fourth valve unit (34), and the fourth valve unit (34) is located between the intersection of the fourth pipe (24) and the second pipe (22) and the intersection of the fourth pipe (24) and the first pipe (21).

4. The liquid-cooled plate structure of the battery panel according to claim 3, characterized in that, The first valve unit (31), the second valve unit (32), the third valve unit (33) and the fourth valve unit (34) each include: an opening assembly (A), a ball assembly (B) and an elastic assembly (C); The open end of the open component (A) is connected to the first end of the spherical component (B), the second end of the spherical component (B) is connected to the first end of the elastic component (C), and the second end of the elastic component (C) is connected to the path of the corresponding pipe.

5. The liquid cooling plate structure of the battery panel according to claim 4, characterized in that, The opening end of the opening assembly (A) of the first valve unit (31) faces the location of the intersection of the third pipe (23) and the first pipe (21); The opening end of the opening assembly (A) of the second valve unit (32) faces the location of the intersection of the third pipe (23) and the second pipe (22); The opening end of the opening assembly (A) of the third valve unit (33) faces the location of the intersection of the third pipe (23) and the first pipe (21); The opening end of the opening assembly (A) of the fourth valve unit (34) faces the location of the intersection of the fourth pipe (24) and the first pipe (21).

6. The liquid-cooled plate structure of the battery panel according to claim 1, characterized in that, The first pipe (21), the second pipe (22), the third pipe (23) and the fourth pipe (24) are all made of aluminum alloy.

7. The liquid cooling plate structure of the battery panel according to claim 3, characterized in that, The opening pressure of the first valve unit (31), the second valve unit (32), the third valve unit (33) and the fourth valve unit (34) is less than or equal to 2 kPa.

8. The liquid-cooled plate structure of the battery panel according to claim 1, characterized in that, The valve assembly (3) includes a spring-loaded check valve.

9. A power battery system, characterized in that, It includes a liquid-cooled plate structure for battery cell modules and battery panels as described in any one of claims 1-8.

10. A vehicle, characterized in that, Includes the power battery system as described in claim 9.

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