Battery system

Abstract

The battery system comprises a liquid cooling plate, a battery and an adapter assembly, the liquid cooling plate comprises a main body part and an extension part which are connected with each other, the main body part is provided with a liquid cooling cavity, the extension part is arranged at the peripheral edge of the main body part, the extension part is provided with a communication port in the thickness direction, and the communication port is communicated with the liquid cooling cavity; the battery is connected with one side of the main body part, the switching assembly is connected with the communication port, the switching assembly is used for allowing liquid to pass through, and the technical problems that in an existing battery system, a liquid cooling plate interface space is limited, and connection is inconvenient are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery liquid cooling technical field especially relates to a kind of battery systems. BACKGROUND

[0002] With the wide application of battery system, the requirement of thermal management system is increasing. As an important thermal management component in the battery system, the liquid cooling plate can effectively absorb the heat generated by the battery during charging and discharging, thereby improving the operating efficiency of the battery and prolonging the service life. The traditional liquid cooling plate design usually sets the liquid injection port and the liquid discharge port on the side of the liquid cooling plate to facilitate the injection and discharge of water flow. However, with the gradual development of liquid cooling plate towards lightness and compactness, the space on the side of the liquid cooling plate is gradually limited, and there is not enough space to set the liquid injection port and the liquid discharge port.

[0003] In order to adapt to these development trends, some designs set the liquid injection port and the liquid discharge port on the top or bottom of the liquid cooling plate. However, the liquid cooling interface on the top or bottom will cause inconvenience to the connection of the external pipeline. Especially when the liquid cooling plate is integrated with other equipment, the layout of the pipeline becomes more complex, and more adapter components may be needed to realize the connection with the external system, thereby increasing the overall complexity and manufacturing cost of the system.

[0004] Therefore, the existing battery system has the technical problem of limited space and inconvenient connection of the liquid cooling plate interface. SUMMARY

[0005] One object of the present utility model is to provide a battery system that aims to solve the technical problem of limited space and inconvenient connection of the liquid cooling plate interface in the existing battery system.

[0006] To achieve the above-mentioned object, the present utility model provides a scheme: a battery system, the battery system includes a liquid cooling plate, which includes a main body part and an extension part connected to each other, the main body part is provided with a liquid cooling cavity, the extension part is arranged at the outer peripheral edge of the main body part, a communication port is arranged in the thickness direction of the extension part, and the communication port is in communication with the liquid cooling cavity; a battery connected to one side of the main body part; an adapter component connected to the communication port, the adapter component is used to allow liquid to pass through.

[0007] Optionally, the communication port is arranged on the side of the extension part away from the battery.

[0008] Optionally, the adapter component includes a connecting pipe, an adapter block and an external pipe, the adapter block is provided with a conversion cavity, a first interface and a second interface in communication with the conversion cavity, the orientations of the first interface and the second interface are different, the connecting pipe connects the communication port and the first interface, and the external pipe connects the second interface and the outside.

[0009] Optionally, the adapter block comprises a first face, a second face and a third face, the first face is connected with the connecting pipe, the third face is oppositely arranged with the first face, the second face connects the first face and the third face, the first interface is arranged on the first face, and the second interface is arranged on the second face.

[0010] Optionally, the number of the second interfaces is multiple, the multiple second interfaces are distributed on the second face, the external connecting pipe is detachably connected with the adapter block, and the external connecting pipe is in communication with any second interface.

[0011] Optionally, the adapter block is rotationally connected with the connecting pipe, and the adapter block can adjust the orientation of the second interface in the plane of the first face.

[0012] Optionally, the adapter block further comprises a flow guide, the flow guide is arranged in the conversion cavity, and the flow guide is connected with the first interface and the second interface respectively.

[0013] Optionally, the flow guide comprises a first end, a second end and a guide portion connecting the first end and the second end, the first end is connected with a region close to the first interface in the conversion cavity, the second end is connected with a region close to the second interface in the conversion cavity, and the guide portion is obliquely arranged relative to the orientation of the first interface and the orientation of the second interface.

[0014] Optionally, the external connecting pipe comprises multiple fixed segments and a telescopic segment connected with the multiple fixed segments, the telescopic segment is arranged between the multiple fixed segments, the fixed segments are connected with the adapter block, and the telescopic segment is used for adjusting the length of the external connecting pipe.

[0015] Optionally, the liquid cooling plate further comprises a sealing member, and the sealing member is arranged on the communication port and / or the first interface and / or the second interface.

[0016] Optionally, the outer peripheral edge of the extension portion is further provided with an L-shaped extension protective flange, and a protective gap is formed between the protective flange and the extension portion.

[0017] The utility model discloses the beneficial effect lies in:

[0018] Compared with the prior art, the extension portion of the liquid cooling plate is extended outward, and a communication port is arranged to be directly connected with the liquid cooling cavity, thereby providing additional space, avoiding the problem of limited side space in the traditional design, and providing more space and flexibility through the extension of the extension portion, which not only ensures the efficiency of liquid flow, but also facilitates the connection with the external pipeline system, significantly simplifies the installation process, and makes the liquid cooling structure more compact. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described in the following description only represent some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0020] Figure 1 is a structural schematic diagram of a battery system provided by the embodiment of the present application.

[0021] Figure 2 is a structural schematic diagram of a liquid cooling plate provided by the embodiment of the present application.

[0022] Figure 3 is a structural schematic diagram of a switching assembly provided by the embodiment of the present application.

[0023] Figure 4 is a structural schematic diagram of a switching assembly provided by the embodiment of the present application. Figure 2 is a sectional view in A-A direction.

[0024] Figure 5 is a structural schematic diagram of another switching assembly provided by the embodiment of the present application.

[0025] Explanation of reference numerals:

[0026] 10, liquid cooling plate; 11, main body part; 111, liquid cooling cavity; 12, extension part; 121, communication port; 122, protective flange; 20, battery; 30, switching assembly; 31, connecting pipe; 32, switching block; 321, switching cavity; 322, first interface; 323, second interface; 324, first surface; 325, second surface; 326, third surface; 327, flow guide; 3271, first end; 3272, second end; 3273, guide part; 33, external connecting pipe; 331, telescopic section; 332, fixed section; 40, sealing member. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of a battery 20 system provided by the embodiment of the present application.

[0029] The utility model embodiment provides a battery 20 system, aiming at solving the problem of limited interface space of liquid cooling plate 10 and inconvenient connection. For this purpose, the present embodiment provides a novel solution, which adopts a liquid cooling plate 10 designed with an extension part 12, which can effectively solve the above problems.

[0030] Specifically, the present battery 20 system comprises a liquid cooling plate 10, a battery 20 and an adapter assembly 30. Among them, the liquid cooling plate 10 is composed of a main body part 11 and an extension part 12 connected to each other. The main body part 11 is provided with a liquid cooling cavity 111 for carrying and heat exchanging the cooling liquid. The extension part 12 is located at the outer peripheral edge of the main body part 11, and a communication port 121 is provided in the thickness direction of the extension part 12. The communication port 121 is in communication with the liquid cooling cavity 111 to allow the liquid to flow. In addition, the adapter assembly 30 is connected with the communication port 121, which is used to communicate with the external pipeline and control the flow of liquid.

[0031] In the present embodiment, the extension part 12 of the liquid cooling plate 10 makes the connection of the liquid cooling plate 10 and the external pipeline more convenient. The extension part 12 of the main body part 11 of the liquid cooling plate 10 provides additional space for the liquid injection port and the liquid discharge port, avoiding the problem of limited space on the side in the traditional design. The communication port 121 is directly connected with the liquid cooling cavity 111, ensuring the smooth flow of the cooling liquid. At the same time, the adapter assembly 30 is connected with the communication port 121. The role of the adapter assembly 30 is to allow the liquid to flow smoothly and can effectively connect the liquid cooling system with the external pipeline system.

[0032] Through the structure of the present embodiment, the liquid cooling plate 10 is no longer limited to the traditional structure of the side interface, but through the extension of the extension part 12, more space and flexibility are provided, which not only ensures the efficiency of liquid flow, but also facilitates the connection with the external pipeline system, significantly simplifies the installation process. This improvement makes the design of the liquid cooling system more compact, and can fully play its heat dissipation performance in limited space, thereby improving the overall heat dissipation efficiency and reliability of the battery 20 system.

[0033] Further, considering the possible position interference problem between the battery 20 structure and the external pipe 33, some embodiments optimize the layout of the communication port 121 in implementation. Specifically, the communication port 121 is arranged on the side of the extension part 12 away from the battery 20. By placing the communication port 121 on the side of the extension part 12 away from the battery 20, the space interference between the liquid cooling system and the battery 20 can be effectively avoided, ensuring that the connection of the liquid cooling plate 10 and the external pipeline will not be hindered by the battery 20 shell or other structural components.

[0034] In the embodiment, since the communication port 121 is located on the side away from the battery 20, the spatial layout is more flexible, so that the external pipeline can be more easily connected with the liquid cooling plate 10. At the same time, the problems of pipeline connection difficulty, interface interference and the like caused by improper interface position are avoided. Especially in the scene where the battery 20 structure is compact or limited, the liquid cooling system can be more convenient for installation and maintenance.

[0035] In addition, considering that the liquid cooling system may have a risk of leakage during long-term use, in the present embodiment, if the communication port 121 has a liquid leakage accident, the liquid will first flow to the side of the outer extension part 12 away from the battery 20, so that even if leakage occurs, the liquid will not directly flow to the battery 20 structure, thereby effectively avoiding damage to the battery 20 caused by liquid leakage. The safety of the liquid cooling system is further enhanced, and the risk of battery 20 damage or short circuit caused by liquid leakage can be effectively reduced.

[0036] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 4 , Figure 2 is a structural schematic view of the liquid cooling plate 10 provided by the utility model embodiment, Figure 3 is a structural schematic view of the adapter assembly 30 provided by the utility model embodiment, Figure 4 is a sectional view of the A-A direction in Figure 2 The adapter assembly 30 specifically includes a connecting pipe 31, an adapter block 32 and an external pipe 33. The adapter block 32 is one of the core components of the adapter assembly 30, an internal conversion cavity 321 is provided in the adapter block 32, and a first interface 322 and a second interface 323 in communication with the conversion cavity 321 are provided. The first interface 322 and the second interface 323 are different in direction, and the connection direction can be selected according to actual needs. Specifically, the connecting pipe 31 is connected with the communication port 121 through the first interface 322, and the cooling liquid is introduced from the communication port 121 of the liquid cooling plate 10 into the conversion cavity 321 in the adapter block 32, and the external pipe 33 is connected with the external pipeline through the second interface 323, and the cooling liquid is guided out of the liquid cooling plate 10 and connected to the external pipeline.

[0037] The different directions of the first interface 322 and the second interface 323 in the adapter assembly 30 enable the liquid cooling plate 10 to be connected with the external pipeline in the direction not limited by the direction of the communication port 121. This structure enables the adapter assembly 30 to be adjusted according to different needs of the installation space and the pipeline layout, ensures the smoothness and flexibility of the pipeline connection, and avoids the connection difficulty caused by the fixed interface position in the traditional design.

[0038] In this embodiment, the main role of the adapter assembly 30 is to change the connection position and orientation of the communication port 121, so that the external pipeline can be more conveniently connected with the liquid cooling plate 10. The connecting pipe 31 is connected with the communication port 121 through the first interface 322, realizing the liquid flow between the liquid cooling plate 10 and the adapter block 32. The conversion cavity 321 in the adapter block 32 provides a transfer channel, facilitating the liquid flow from the liquid cooling plate 10 and being smoothly guided to the external pipe 33 and the external system through the second interface 323.

[0039] The adapter assembly 30 can change the relative position and direction between the communication port 121 of the liquid cooling plate 10 and the external pipeline, provide higher installation flexibility, adapt to different space environment and equipment requirements, greatly improve the convenience of installation and system integration. In addition, it can also effectively avoid the inconvenience of connection caused by space or structural limitations in the design of the traditional liquid cooling plate 10, ensure that the liquid cooling system can smoothly run in limited space, and maintain high heat dissipation efficiency.

[0040] Further, please refer to Figure 5 , Figure 5 is another structure diagram of the adapter assembly 30 provided by the embodiment of the utility model. The adapter block 32 specifically includes the first face 324, the second face 325 and the third face 326. Each face has a specific function. The first face 324 is provided with the first interface 322, and the connecting pipe 31 is connected with the communication port 121 of the liquid cooling plate 10 through the first interface 322, so as to introduce the liquid from the liquid cooling plate 10 into the adapter block 32, ensuring the liquid flow channel between the communication port 121 of the liquid cooling plate 10 and the adapter block 32. The third face 326 is arranged opposite to the first face 324, and the second face 325 connects the first face 324 and the third face 326, forming a whole structure with three-dimensional space configuration.

[0041] Meanwhile, the second face 325 is provided with the second interface 323, and the first interface 322 and the second interface 323 are respectively located at different positions of the first face 324 and the second face 325, so that the liquid flow path in the adapter block 32 can be effectively distributed and smoothly flow between different interfaces.

[0042] In this embodiment, the first interface 322 and the second interface 323 are respectively located on different faces, so that the pipeline connection will not interfere with each other. The angle between the first face 324 and the second face 325 is reasonably designed, so that the interfaces of the adapter block 32 can be efficiently arranged in limited space, facilitating the connection with the external pipeline, and also improving the integration and stability of the system.

[0043] Further, in order to improve the flexibility and adaptability of the adapter assembly 30, the adapter block 32 is further optimized in this embodiment, and a plurality of second interfaces 323 are added and spaced apart on the second surface 325. This allows the adapter block 32 to be more flexible in adapting to different installation environments and pipe layouts, enhancing the customizability of the liquid cooling system and the diversity of pipe connections.

[0044] In this embodiment, a plurality of second interfaces 323 are spaced apart on the second surface 325 of the adapter block 32, each second interface 323 is connected to the conversion cavity 321 of the adapter block 32, and the external pipe 33 can be connected to any one of the second interfaces 323. Through this arrangement, the external pipe 33 can be flexibly connected to one of the multiple interfaces of the adapter block 32 as needed, whether it is due to space constraints or the layout requirements of the liquid cooling system, the most suitable interface can be selected for connection, avoiding the inconvenience caused by fixed interface positions in traditional designs.

[0045] In addition, the external pipe 33 and the adapter block 32 are connected in a detachable manner, so users can easily detach or replace the external pipe 33 as needed for system cleaning, maintenance or upgrading without disassembling the entire liquid cooling system. The detachable connection not only improves the maintenance efficiency of the liquid cooling system, but also reduces the complexity of the installation process, saving time and cost.

[0046] In some embodiments, in order to further improve the flexibility of the adapter assembly 30, another way is adopted, and the adapter block 32 is connected to the connecting pipe 31 in a rotating manner, so that the adapter assembly 30 can rotate in the plane where the first surface 324 is located, thereby adjusting the angle of the adapter block 32 and the orientation of the second interface 323 within a certain range to adapt to different installation requirements and space layouts.

[0047] In this embodiment, the adapter block 32 is connected to the connecting pipe 31 in a rotating manner, which allows the adapter block 32 to rotate around an axis in the plane where the first surface 324 is located, and the rotation angle is usually limited within a certain range to ensure the normal flow of the liquid flow path. The adapter block 32 can adjust the orientation of the second interface 323 according to the actual installation conditions or the layout of the external pipe, so that the external pipe 33 can be more conveniently connected to the adapter block 32 as needed.

[0048] In addition, the rotating connection of the adapter block 32 is not limited to the adjustment of the interface direction, but can also effectively optimize the layout of the pipe, avoiding problems such as excessive pipe bending or uneven pressure caused by inappropriate angles. Through the rotating connection, the layout of the pipe can be reasonably adjusted to ensure smooth and efficient liquid flow, avoiding the risk of leakage or affecting the cooling effect of the liquid cooling system due to improper pipe layout.

[0049] Further, in order to improve the liquid flow efficiency of the adapter assembly 30 and protect the adapter block 32 from excessive fluid impact, the present embodiment adds a flow guide 327 inside the adapter block 32. The flow guide 327 is arranged in the transition cavity 321 of the adapter block 32 and serves to guide the liquid flow. The flow guide 327 is designed to optimize the flow path of the liquid in the adapter block 32, avoiding the liquid from the first interface 322 directly connecting with the second interface 323 when it enters the transition cavity 321, thereby reducing the impact and damage to the adapter block 32 caused by rapid changes in flow rate or flow direction.

[0050] In the present embodiment, the flow guide 327 is arranged in the transition cavity 321, connecting the first interface 322 and the second interface 323, so that after the liquid enters the transition cavity 321, it can smoothly flow along the guide path of the flow guide 327 from the first interface 322 to the second interface 323, or from the second interface 323 to the first interface 322. In this process, the flow guide 327 effectively reduces the turbulence and sharp turning of the liquid flow, ensuring the smoothness of the liquid flow and the uniformity of the flow rate. Not only does it improve the flow efficiency of the liquid, but it also avoids the pressure fluctuations or mechanical impact caused by the sharp turning of the liquid flow in the adapter block 32.

[0051] In some embodiments, the flow guide 327 specifically includes a first end 3271, a second end 3272, and a guide portion 3273 connecting the two, designed to guide the liquid flow by precise geometry, thereby avoiding the turbulence and impact caused by the sharp turning of the fluid in the adapter block 32, thereby improving the overall stability and efficiency of the system.

[0052] Specifically, the first end 3271 of the flow guide 327 is connected to the area near the first interface 322 inside the transition cavity 321 of the adapter block 32, while the second end 3272 is connected to the area near the second interface 323 inside the transition cavity 321. The guide portion 3273 presents a certain inclination angle relative to the first interface 322 and the second interface 323. This inclined arrangement can optimize the direction of liquid flow, so that the liquid can smoothly transition when flowing through the flow guide 327. Through the inclined guide portion 3273, the speed and direction of the liquid flow are better controlled, avoiding the uneven flow rate, vortex or fluid impact that may occur in traditional designs due to excessive turning of the fluid.

[0053] In this embodiment, the flow guide 327 forms a flow channel from the first interface 322 to the second interface 323 within the adapter block 32, allowing the liquid to flow smoothly along the channel after entering the adapter block 32. The inclined design of the flow guide 327 allows the liquid to make full use of the space within the conversion cavity 321 during flow, reducing friction between the liquid and the inner wall of the adapter block 32, while also speeding up the flow of the liquid and improving efficiency.

[0054] Further, to enhance the adaptability of the external pipe 33, the structure of the external pipe 33 is optimized in this embodiment, adopting a design combining a telescopic section 331 with multiple fixed sections 332. The external pipe 33 specifically includes a telescopic section 331 and multiple fixed sections 332 connected to each other, with the telescopic section 331 being arranged between the multiple fixed sections 332, and the fixed sections 332 being connected to the adapter block 32. The main function of the telescopic section 331 is to adjust the length of the external pipe 33 to adapt to different installation spaces and layout requirements of the external pipe 33.

[0055] In this embodiment, the fixed sections 332 are stably connected to the adapter block 32, having good strength and being able to remain stable during the flow of the liquid, preventing loosening or leakage due to external vibration or pressure fluctuations. The telescopic section 331 is located between the multiple fixed sections 332, having telescopic properties. By adjusting the length of the telescopic section 331, the external pipe 33 can be elongated or contracted within a certain range, achieving a customized length of the external pipe 33 and avoiding the problem of inaccurate docking due to the length limitation of the fixed pipe.

[0056] In some embodiments, to enhance the sealing performance and prevent liquid leakage, the liquid cooling plate 10 further includes a sealing member 40. The sealing member 40 is arranged at the connection part of the communication port 121 and / or the first interface 322 and / or the second interface 323, playing an effective sealing role to ensure the smooth flow of the liquid in the liquid cooling system and prevent leakage of the liquid at the connection interface, thereby ensuring the efficient operation and safety of the system.

[0057] In this embodiment, the sealing member 40 is usually made of materials such as rubber, silicone, and polyurethane, having good elasticity and toughness, and being able to maintain its shape and sealing effect under pressure changes and temperature fluctuations, avoiding sealing failure due to aging or fatigue.

[0058] By arranging the sealing member 40, the sealing performance of the communication port 121 and the interfaces of the liquid cooling plate 10 is significantly improved. The sealing structure formed by the sealing member 40 at the interface effectively prevents the leakage of the liquid, avoiding the leakage problem that may occur during the operation of the liquid cooling system, thereby ensuring the safety and stability of the liquid cooling system. Especially in high-pressure or high-temperature environments, the sealing member 40 plays a more prominent role, effectively preventing sealing failure caused by changes in the external environment.

[0059] Further, in order to enhance the structural stability of the liquid cooling plate 10 and provide more effective protection measures, in some embodiments, the outer peripheral edge of the extension part 12 is also provided with an L-shaped extended protective edge 122. The protective edge 122 not only can improve the overall strength of the liquid cooling plate 10, but also can form an additional protective structure at the edge of the extension part 12 to reduce the influence of the external environment on the liquid cooling plate 10 and its pipeline interface, and improve the safety and reliability of the system.

[0060] The protective edge 122 and the extension part 12 form a protective gap, which provides a certain degree of buffer and protection for the pipeline interface and related components of the liquid cooling plate 10, avoiding damage to the liquid cooling plate 10 due to external mechanical contact, vibration or collision. In addition, the L-shaped structure of the protective edge 122 design makes it have better rigidity and support in structure, which can effectively improve the impact resistance of the extension part 12. Compared with the ordinary straight edge design, the L-shaped extension structure can better disperse external force, so that the liquid cooling plate 10 can maintain higher stability when subjected to external pressure or collision, reducing deformation or damage caused by external extrusion.

[0061] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0062] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a centering element present at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a centering element.

[0063] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0064] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the inventive concept of the present application, as described in the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A battery system, characterized in that, include: A liquid cooling plate includes a main body and an extension portion connected to each other. The main body has a liquid cooling cavity, and the extension portion is disposed at the outer periphery of the main body. The extension portion has a communication opening in the thickness direction, and the communication opening communicates with the liquid cooling cavity. The battery is connected to one side of the main body. An adapter assembly, connected to the communication port, is used to allow liquid to pass through.

2. The battery system according to claim 1, characterized in that, The communication port is located on the side of the extension portion away from the battery.

3. The battery system according to claim 1, characterized in that, The adapter assembly includes a connecting pipe, an adapter block, and an external connecting pipe. The adapter block has a conversion cavity and a first interface and a second interface communicating with the conversion cavity. The first interface and the second interface have different orientations. The connecting pipe connects the communication port to the first interface, and the external connecting pipe connects the second interface to the outside.

4. A battery system according to claim 3, characterized in that, The adapter block includes a first surface, a second surface, and a third surface. The first surface is connected to the connecting pipe, the third surface is disposed opposite to the first surface, the second surface connects the first surface and the third surface, the first interface is disposed on the first surface, and the second interface is disposed on the second surface.

5. A battery system according to claim 4, characterized in that, The number of the second interfaces is multiple, and the multiple second interfaces are distributed at intervals on the second surface. The outer pipe is detachably connected to the adapter block, and the outer pipe is connected to any of the second interfaces.

6. A battery system according to claim 4, characterized in that, The adapter block is rotatably connected to the connecting pipe, and the adapter block can adjust the orientation of the second interface within the plane of the first surface.

7. A battery system according to any one of claims 3 to 6, characterized in that, The adapter block also includes a flow guide, which is disposed within the conversion cavity and is connected to the first interface and the second interface respectively.

8. A battery system according to claim 7, characterized in that, The flow guide includes a first end and a second end, and a guide portion connecting the two. The first end is connected to the region inside the conversion cavity near the first interface, and the second end is connected to the region inside the conversion cavity near the second interface. The guide portion is inclined relative to the orientation of the first interface and the orientation of the second interface.

9. A battery system according to any one of claims 3 to 6, characterized in that, The outer pipe includes an interconnected telescopic section and multiple fixed sections. The telescopic section is disposed between the multiple fixed sections, and the fixed sections are connected to the adapter block. The telescopic section is used to adjust the length of the outer pipe.

10. A battery system according to any one of claims 3 to 6, characterized in that, The liquid cooling plate also includes a sealing element, which is disposed at the communication port and / or the first interface and / or the second interface.

11. A battery system according to claim 1, characterized in that, The outer peripheral edge of the extension portion is also provided with an L-shaped extended protective guard edge, and a protective gap is formed between the protective guard edge and the extension portion.

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