Liquid cooling assembly and energy storage device

Abstract

The utility model relates to a liquid cooling assembly and an energy storage device. The liquid cooling assembly comprises a liquid cooling pipeline and a liquid supplementing pipeline; the liquid cooling pipeline comprises a first pipeline, a second pipeline and a third pipeline, the first pipeline is provided with a first port, the first port is used for being connected with one container module, the second pipeline is provided with a second port, and the second port is used for being connected with the other container module; the third pipeline is arranged between the first pipeline and the second pipeline and communicated with the first pipeline and the second pipeline, the third pipeline comprises a main body section and a telescopic section, and the telescopic section is arranged at at least one end of the main body section; the liquid supplementing pipeline communicates with the liquid cooling pipeline and is used for guiding the liquid cooling medium to flow into or out of the liquid cooling pipeline. According to the liquid cooling assembly provided by the invention, the third pipeline is provided with the telescopic section, so that the position deviation and displacement during installation of the container module can be effectively compensated, the first pipeline or the second pipeline has enough movement allowance, and the sealing performance and reliability of the liquid cooling assembly and the container module are improved.

Description

Liquid cooling components and energy storage devices Technical Field

[0001] This application relates to the field of energy storage device manufacturing technology, and in particular to liquid cooling components and energy storage devices. Background Technology

[0002] With the rapid development of technology, electricity has become an indispensable energy source in people's production and daily life. To improve the smoothness of electricity supply and ensure the normal operation of production and daily life, energy storage devices are needed. As devices that cyclically store and release electrical energy, energy storage devices store electrical energy or supply the stored energy to electrical devices through charging or discharging. Energy storage devices are widely used in industrial power supply, household power supply, temporary power supply, mobile power supply, wind power generation, solar power generation, and energy storage power stations.

[0003] Energy storage devices include container modules, which house batteries. These modules are energy storage and transfer devices and are a crucial component in the development of distributed energy, smart grids, and the energy internet within the energy storage field. Improving the reliability of energy storage devices is a pressing technical challenge that needs to be addressed in the development of energy storage technology. Summary of the Invention

[0004] This application provides a liquid cooling component and an energy storage device, which aims to improve the reliability of the energy storage device.

[0005] In a first aspect, this application proposes a liquid cooling assembly, which includes a liquid cooling pipeline and a replenishment pipeline. The liquid cooling pipeline includes a first pipeline, a second pipeline, and a third pipeline. The first pipeline has a first port for connecting to a container module. The second pipeline has a second port for connecting to another container module. The third pipeline is disposed between and connected to the first and second pipelines. The third pipeline includes a main body section and a telescopic section, with the telescopic section disposed at at least one end of the main body section. The replenishment pipeline is connected to the liquid cooling pipeline and is used to guide the liquid cooling medium into or out of the liquid cooling pipeline.

[0006] The liquid cooling assembly provided in this application includes a three-section first pipe, second pipe, and third pipe, which facilitates replacement and maintenance and is adaptable to container modules of different specifications. The third pipe includes a main section and an expansion section. The expansion section effectively compensates for positional deviations and displacements during container module installation. The expansion and contraction of the expansion section provides sufficient flexibility for the first or second pipe, mitigating problems such as cracking and leakage caused by stress concentration, and improving the sealing between the liquid cooling assembly and the container module, thereby enhancing the connection stability and reliability.

[0007] According to one embodiment of this application, the third pipeline includes two expansion sections, namely a first expansion section and a second expansion section. The first expansion section is connected to the first pipeline, and the second expansion section is connected to the second pipeline. The expansion and contraction of the expansion sections ensures that both the first and second pipelines have sufficient room for movement.

[0008] According to one embodiment of this application, two container modules are arranged along a first direction; a main body section and a second telescopic section extend along the first direction, and the first telescopic section extends along a second direction, which is perpendicular to the first direction. The first telescopic section extending along the second direction, perpendicular to the arrangement direction of the container modules, can accommodate horizontal misalignment at the connection ends of the two containers. The main body section and the second telescopic section, arranged along the container module direction, effectively shorten the liquid cooling medium transmission path and reduce medium flow resistance.

[0009] According to one embodiment of this application, at least a portion of the first conduit extends along a third direction, and at least a portion of the second conduit extends along a third direction, with the first direction, the second direction, and the third direction being perpendicular to each other. Both the first and second conduits extend along a third direction, facilitating installation. This effectively improves the space utilization of the liquid cooling assembly, resulting in a more compact overall layout.

[0010] According to one embodiment of this application, the length of the main body section is greater than the length of the telescopic section along the extension direction of the liquid cooling assembly. The main body section is the main structure of the third pipeline, which can reduce the local flow resistance loss caused by the telescopic section and make the flow path of the liquid cooling medium smooth.

[0011] According to one embodiment of this application, the telescopic section is a corrugated pipe or a flexible hose.

[0012] According to one embodiment of this application, the liquid cooling assembly further includes a first valve and a second valve. The first valve is disposed between the first pipeline and the first telescopic section, and the second valve is disposed between the second pipeline and the second telescopic section. By providing the first and second valves, during the draining and disassembly operation, the first pipeline assembly and the second pipeline assembly can be drained by opening and closing the corresponding valves, while the third pipeline assembly can retain the liquid cooling medium, saving the draining and subsequent replenishment processes of the third pipeline and improving operational efficiency.

[0013] According to one embodiment of this application, the liquid replenishment pipeline includes a first liquid replenishment section connected to a first pipeline; the liquid cooling assembly further includes a first vent valve and a first liquid replenishment valve, the first vent valve being disposed in the first pipeline and the first liquid replenishment valve being disposed in the first liquid replenishment section. Depending on actual needs, venting and liquid replenishment can be selectively performed on the first pipeline alone, or on the entire liquid cooling assembly, allowing for partial venting and liquid replenishment, thus reducing the loss of the liquid cooling medium and improving operational efficiency.

[0014] According to one embodiment of this application, the liquid cooling assembly further includes a first rotating member, and a first replenishment section is connected to a first pipeline via the first rotating member. The first rotating member is rotatably configured relative to the first pipeline. Depending on actual needs, venting and replenishment can be selectively performed on the first pipeline alone, or on the entire liquid cooling assembly. This partial venting and replenishment reduces the loss of the liquid cooling medium and improves operational efficiency.

[0015] According to one embodiment of this application, the liquid replenishment pipeline includes a second liquid replenishment section connected to a second pipeline; the liquid cooling assembly also includes a second vent valve and a second liquid replenishment valve, the second vent valve being disposed in the second pipeline and the second liquid replenishment valve being disposed in the second liquid replenishment section. Depending on actual needs, venting and liquid replenishment can be selectively performed on the second pipeline alone, or on the entire liquid cooling assembly, allowing for partial venting and liquid replenishment, thus reducing the loss of the liquid cooling medium and improving operational efficiency.

[0016] According to one embodiment of this application, the liquid cooling assembly further includes a second rotating member. The second liquid replenishment section is connected to the second pipeline via the second rotating member, and the second rotating member is rotatably disposed relative to the second pipeline. The second rotating member can drive the second liquid replenishment section to move relative to the second pipeline, thereby adjusting the orientation and angle of the second liquid replenishment section and enabling quick alignment with the interface of the liquid replenishment device, improving operational convenience.

[0017] Secondly, this application provides an energy storage device, which includes multiple container modules and a liquid cooling component as described above, the liquid cooling component being used to connect two adjacent container modules.

[0018] The energy storage device provided in this application enables multiple container modules to share a single water-cooling unit, achieving efficient connection of liquid cooling pipelines between container modules. Furthermore, the first or second pipeline has sufficient margin for movement, improving the sealing performance between the liquid cooling component and the container module, thereby enhancing the connection stability and reliability of the two.

[0019] According to one embodiment of this application, the energy storage device includes multiple liquid cooling components, with two liquid cooling components connected in parallel between two adjacent container modules. One liquid cooling component delivers a low-temperature liquid cooling medium into the container module, while the other liquid cooling component discharges the recirculated, heat-absorbing liquid cooling medium. This reduces the mixing of liquid cooling media at different temperatures within the pipeline, thereby stabilizing the temperature of the liquid cooling medium entering the container module and improving heat dissipation efficiency.

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0021] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0022] Figure 1 is a top view of a liquid cooling pipeline provided in an embodiment of this application;

[0023] Figure 2 is a top view of a liquid cooling pipeline and container module provided in an embodiment of this application;

[0024] Figure 3 is a left view of a liquid cooling pipeline provided in an embodiment of this application;

[0025] Figure 4 is a schematic diagram of the structure of a liquid cooling pipeline provided in an embodiment of this application;

[0026] Figure 5 is a partial structural schematic diagram of a liquid cooling pipeline provided in an embodiment of this application;

[0027] Figure 6 is a partial structural schematic diagram of a liquid cooling pipeline provided in one embodiment of this application.

[0028] The accompanying drawings may not be drawn to scale.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Liquid cooling pipeline; 11. First pipeline; 111. First port; 12. Second pipeline; 121. Second port; 13. Third pipeline; 131. Main body section; 132. Telescopic section; 132a. First telescopic section; 132b. Second telescopic section; 20. Liquid replenishment pipeline; 21. First liquid replenishment section; 22. Second liquid replenishment section; 30. First valve; 40. Second valve; 50. First vent valve; 60. First liquid replenishment valve; 70. First rotating component; 80. Second vent valve; 90. Second liquid replenishment valve; 100. Second rotating component; 200. Container module; x. First direction; y. Second direction; z. Third direction. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0033] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0036] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0037] In this application, "multiple" means two or more (including two).

[0038] The connecting pipelines between container modules need to meet the flow requirements of multiple modules operating in parallel. Their inner diameter, length, and internal volume are much larger than those between the container modules and the liquid cooling unit. In related technologies, container modules are mostly one-piece structures, which are inconvenient for replacement and maintenance, and difficult to adapt to different specifications of container modules. Moreover, during long-term use, thermal expansion and contraction can easily cause cracking and leakage in the connecting pipelines, affecting the sealing, stability, and reliability of the connection between the liquid cooling unit and the container module. The above statements are only used to provide background information related to this application and do not necessarily constitute prior art.

[0039] In view of the above problems, the liquid cooling assembly provided in this application includes a three-section first pipe, a second pipe, and a third pipe, which facilitates replacement and maintenance and can be adapted to container modules of different specifications. The third pipe includes a main section and a telescopic section. The telescopic section can effectively compensate for positional deviations and displacements during the installation of the container module. By utilizing the expansion and contraction deformation of the telescopic section, the first or second pipe has sufficient room for movement, improving problems such as cracking and leakage caused by stress concentration in the pipes, and enhancing the sealing performance between the liquid cooling assembly and the container module, thereby improving the connection stability and reliability of the two.

[0040] Energy storage devices can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage devices can store electrical energy as needed and output it when appropriate. For example, energy storage devices can store electrical energy during off-peak hours and provide power to relevant users or electrical equipment during peak hours.

[0041] In some embodiments, the energy storage device includes a container module, an energy storage cabinet, etc.

[0042] For ease of explanation, the following embodiments will be described using a vehicle as an example of an electrical device according to an embodiment of this application.

[0043] Referring to Figures 1 and 2, Figure 1 is a top view of a liquid cooling pipeline provided in an embodiment of this application; Figure 2 is a top view of a liquid cooling pipeline and container module provided in an embodiment of this application.

[0044] As shown in Figures 1 and 2, a liquid cooling assembly according to this application includes a liquid cooling pipeline 10 and a replenishment pipeline 20. The liquid cooling pipeline 10 includes a first pipeline 11, a second pipeline 12, and a third pipeline 13. The first pipeline 11 has a first port 111 for connecting to one container module 200. The second pipeline 12 has a second port 121 for connecting to another container module 200. The third pipeline 13 is disposed between and connected to the first pipeline 11 and the second pipeline 12. The third pipeline 13 includes a main body section 131 and a telescopic section 132, with the telescopic section 132 disposed at at least one end of the main body section 131. The replenishment pipeline 20 is connected to the liquid cooling pipeline 10 and is used to guide the liquid cooling medium into or out of the liquid cooling pipeline 10.

[0045] Liquid cooling media are fluid media, such as water, ethanol, oil, and Freon.

[0046] The liquid cooling assembly includes a first pipe 11, a second pipe 12 and a third pipe 13, with the first pipe 11 and the second pipe 12 connected through the third pipe 13.

[0047] The first pipe 11 has a first port 111, which can be understood as the outlet end of the first pipe 11. The liquid cooling medium flowing in the first pipe 11 flows into a container module 200 through the first port 111.

[0048] In some examples, the first conduit 11 has a first port 111 and a third port, the third port being used to connect to the third conduit 13. The third port is the inlet end of the first conduit 11.

[0049] The second pipe 12 has a second port 121, which can be understood as the outlet end of the second pipe 12. The liquid cooling medium flowing in the second pipe 12 flows into another container module 200 through the second port 121.

[0050] In some examples, the second conduit 12 has a second port 121 and a fourth port, the fourth port being used to connect to the third conduit 13. The fourth port is the inlet end of the first conduit 11.

[0051] In some examples, the first conduit 11 includes a first flow channel, which may be one or more of the following shapes: straight, wavy, toothed, S-shaped, and C-shaped.

[0052] In some examples, the second conduit 12 includes a second flow channel, which may be one or more of the following shapes: straight, wavy, toothed, S-shaped, and C-shaped.

[0053] In some examples, a telescopic section 132 is provided at the end of the main body section 131 near the first conduit 11.

[0054] In other examples, a telescopic section 132 is provided at the end of the main body section 131 near the second conduit 12.

[0055] In some other examples, extension segments 132 are provided at both ends of the main body segment 131.

[0056] The replenishment line 20 is used to connect to the replenishment equipment to provide liquid cooling medium to the liquid cooling line 10. The replenishment line 20 can also serve as a drain channel to drain the liquid cooling medium in the liquid cooling line 10.

[0057] In some examples, the replenishment line 20 is connected to the first line 11.

[0058] In other examples, the replenishment line 20 is connected to the second line 12.

[0059] In some other examples, the replenishment line 20 is connected to the third line 13.

[0060] The liquid cooling assembly provided in this application includes a three-section first pipe 11, a second pipe 12, and a third pipe 13, which facilitates replacement and maintenance and can be adapted to container modules 200 of different specifications. The third pipe 13 includes a main section 131 and a telescopic section 132. The telescopic section 132 of the third pipe 13 can effectively compensate for positional deviations and displacements during the installation of the container module 200. By utilizing the expansion and contraction deformation of the telescopic section 132, the first pipe 11 or the second pipe 12 has sufficient room for movement, improving problems such as cracking and leakage caused by stress concentration in the pipes, and enhancing the sealing performance between the liquid cooling assembly and the container module 200, thereby improving the connection stability and reliability of the two.

[0061] Referring to Figure 3, which is a left view of a liquid cooling pipeline provided in an embodiment of this application.

[0062] According to one embodiment of this application, as shown in Figures 1 to 3, the third pipeline 13 includes two telescopic sections 132, namely a first telescopic section 132a and a second telescopic section 132b. The first telescopic section 132a is connected to the first pipeline 11, and the second telescopic section 132b is connected to the second pipeline 12. The telescopic deformation of the telescopic sections 132 ensures sufficient room for movement for both the first pipeline 11 and the second pipeline 12.

[0063] In some examples, the first telescopic section 132a is configured to extend or retract along the extension direction of the liquid cooling assembly, so that there is a margin of movement between the third conduit 13 and the first conduit 11.

[0064] In some examples, the second telescopic section 132b is configured to extend or retract along the extension direction of the liquid cooling assembly, so that there is a margin of movement between the third conduit 13 and the second conduit 12.

[0065] In some examples, in the extension direction of the liquid cooling assembly, the length of the main body segment 131 is greater than the length of the first telescopic segment 132a, and the length of the main body segment 131 is greater than the length of the second telescopic segment 132b.

[0066] In some examples, the length of the first telescopic segment 132a is equal to the length of the second telescopic segment 132b in the direction of extension of the liquid cooling component; alternatively, the length of the first telescopic segment 132a is not equal to the length of the second telescopic segment 132b.

[0067] According to one embodiment of this application, as shown in Figures 1 to 3, two container modules 200 are arranged along a first direction x. The main body segment 131 and the second telescopic segment 132b extend along the first direction x, and the first telescopic segment 132a extends along a second direction y, which is perpendicular to the first direction x.

[0068] The liquid cooling components connecting the two container modules 200 are staggered in the height direction. The height direction is parallel to the second direction y.

[0069] In some examples, the first direction x is parallel to the horizontal direction, and the second direction y is parallel to the direction of gravity.

[0070] In some examples, two container modules 200 are spaced apart along a first direction x.

[0071] The first telescopic section 132a extends along a second direction y, perpendicular to the layout direction of the container module 200, and can accommodate the horizontal misalignment of the connection ends of the two container modules 200. The main body section 131 and the second telescopic section 132b are along the layout direction of the container module 200, effectively shortening the liquid cooling medium transmission path and reducing the medium flow resistance.

[0072] According to one embodiment of this application, as shown in Figures 1 to 3, at least a portion of the first conduit 11 extends along a third direction z, and at least a portion of the second conduit 12 extends along a third direction z, with the first direction x, the second direction y, and the third direction z being perpendicular to each other.

[0073] Optionally, in the second direction y, the first conduit 11 is located at the top of the second conduit 12. This facilitates the flow of the short liquid cooling medium in the first conduit 11 to the third conduit 13 and the second conduit 12 under the influence of gravity.

[0074] In some examples, the length of the first conduit 11 extending along the third direction z is equal to the length of the second conduit 12 extending along the third direction z.

[0075] For example, the structure of the first pipe 11 is the same as that of the second pipe 12. This reduces the manufacturing cost of the liquid cooling assembly.

[0076] Both the first pipe 11 and the second pipe 12 extend along the third direction z, facilitating installation. This effectively improves the space utilization of the liquid cooling components, making the overall layout more compact.

[0077] According to one embodiment of this application, as shown in Figures 1 and 2, the length of the main body section 131 is greater than the length of the telescopic section 132 along the extension direction of the liquid cooling assembly. The main body section 131 is the main structure of the third pipeline 13, which can reduce the local flow resistance loss caused by the telescopic section 132 and make the flow path of the liquid cooling medium smooth.

[0078] For example, the length of the main body segment 131 is greater than the length of the first telescopic segment 132a, and the length of the main body segment 131 is greater than the length of the second telescopic segment 132b.

[0079] In some examples, the main body segment 131 is a metal tube.

[0080] In some examples, the liquid cooling assembly also includes a support for supporting the main body segment 131.

[0081] According to one embodiment of this application, the telescopic section 132 is a corrugated pipe or a flexible hose.

[0082] For example, the first telescopic section 132a is a metal bellows.

[0083] For example, the second telescopic section 132b is a metal bellows.

[0084] According to one embodiment of this application, as shown in Figures 1 to 3, the liquid cooling assembly further includes a first valve 30 and a second valve 40. The first valve 30 is disposed between the first pipeline 11 and the first extension section 132a, and the second valve 40 is disposed between the second pipeline 12 and the second extension section 132b.

[0085] Multiple container modules 200 share a single liquid cooling unit. The liquid cooling components between the container modules 200 need to meet the flow distribution requirements after the multiple container modules 200 are connected in parallel. Their inner diameter, layout length and volume are usually large. When the liquid cooling components are drained and disassembled, all the liquid cooling medium inside the liquid cooling components is drained, which prolongs the operation time and increases the waste of liquid cooling medium. Moreover, the liquid cooling components need to be replenished when they are reassembled after being drained, which further prolongs the overall operation time and reduces the operation and maintenance efficiency of the energy storage device.

[0086] In some examples, the first valve 30 is a butterfly valve.

[0087] For example, the first valve 30 is connected to the first pipeline 11 via a connecting chuck.

[0088] For example, the first valve 30 is connected to the third pipeline 13 via a connecting chuck.

[0089] In some examples, the second valve 40 is a butterfly valve.

[0090] For example, the second valve 40 is connected to the second pipeline 12 via a connecting chuck.

[0091] For example, the second valve 40 is connected to the third pipeline 13 via a connecting chuck.

[0092] A first valve 30 is installed at the connection between the first pipeline 11 and the first telescopic section 132a, and a second valve 40 is installed at the connection between the second pipeline 12 and the second telescopic section 132b. During the drainage and disassembly operation, the first pipeline 11 assembly and the second pipeline 12 assembly can be drained by opening and closing the corresponding valves, while the third pipeline 13 assembly can retain the liquid cooling medium, saving the drainage and subsequent liquid replenishment process of the third pipeline 13 and improving the operation efficiency.

[0093] Referring to Figures 4 and 5, Figure 4 is a structural schematic diagram of a liquid cooling pipeline provided in an embodiment of this application; Figure 5 is a partial structural schematic diagram of a liquid cooling pipeline provided in an embodiment of this application.

[0094] According to one embodiment of this application, as shown in Figures 4 and 5, the liquid replenishment pipeline 20 includes a first liquid replenishment section 21, which is connected to the first pipeline 11. The liquid cooling assembly also includes a first vent valve 50 and a first liquid replenishment valve 60, wherein the first vent valve 50 is disposed in the first pipeline 11 and the first liquid replenishment valve 60 is disposed in the first liquid replenishment section 21.

[0095] In some examples, the first conduit 11 includes a straight section and a bend section, the straight section having a second port 121. The bend section bends relative to the straight section along a first expansion section 132a, the bend section connecting the straight section and the first expansion section 132a.

[0096] For example, the straight segment extends along a third direction z.

[0097] For example, the first replenishment section 21 is connected to the bend section.

[0098] For example, the first exhaust valve 50 is located in the straight section.

[0099] In some examples, the first replenishment section 21 has a replenishment port for communication with a replenishment device.

[0100] For example, the first replenishing valve 60 is a ball valve.

[0101] Connect the first port 111 of the first pipeline 11 to one container module 200, and connect the second port 121 of the second pipeline 12 to another container module 200. Open the first valve 30 and the second valve 40 to connect the liquid cooling components. Open the first vent valve 50. Open the first replenishment valve 60. Connect the first replenishment section 21 to the replenishment equipment, turn on the replenishment equipment to replenish the liquid, and turn off the replenishment equipment after replenishment is completed. Close the first vent valve 50 and the first replenishment valve 60 to complete the venting and replenishment of the liquid cooling components.

[0102] The first pipeline 11 is connected to the first liquid replenishment section 21 and is equipped with a first vent valve 50. Therefore, the first pipeline 11 can be vented and replenished separately according to actual needs, or the entire liquid cooling assembly can be vented and replenished locally, which reduces the loss of liquid cooling medium and improves operating efficiency.

[0103] According to one embodiment of this application, as shown in Figures 4 and 5, the liquid cooling assembly further includes a first rotating member 70, and the first liquid replenishment section 21 is connected to the first pipeline 11 through the first rotating member 70. The first rotating member 70 is rotatably disposed relative to the first pipeline 11.

[0104] The first rotating component 70 can drive the first replenishment section 21 to move relative to the first pipeline 11, thereby adjusting the orientation and angle of the first replenishment section 21, quickly aligning it with the interface of the replenishment equipment, and improving the ease of operation.

[0105] Referring to Figure 6, which is a partial structural schematic diagram of a liquid cooling pipeline provided in one embodiment of this application.

[0106] According to one embodiment of this application, as shown in Figures 4 and 6, the liquid replenishment line 20 includes a second liquid replenishment section 22, which is connected to the second line 12. The liquid cooling assembly also includes a second vent valve 80 and a second liquid replenishment valve 90, wherein the second vent valve 80 is disposed in the second line 12 and the second liquid replenishment valve 90 is disposed in the second liquid replenishment section 22.

[0107] In some examples, the second conduit 12 includes a straight section and a bend section, the bend section having a first port 111. The bend section bends relative to the straight section along a second direction y, and the straight section connects to the bend section and the second extension section 132b.

[0108] For example, the straight segment extends along a third direction z.

[0109] For example, the second replenishment section 22 is connected to the straight section.

[0110] For example, the second exhaust valve 80 is located in the straight section.

[0111] In some examples, the second replenishment section 22 has a replenishment port for communication with a replenishment device.

[0112] For example, the second replenishing valve 90 is a ball valve.

[0113] The third pipeline 13 is filled with liquid cooling medium, and the first valve 30 and the second valve 40 are closed. Connect the first port 111 of the first pipeline 11 to one container module 200, and connect the second port 121 of the second pipeline 12 to another container module 200. Open the first vent valve 50. Connect the first replenishment section 21 to the replenishment equipment, turn on the replenishment equipment, and open the first replenishment valve 60. Replenish the first pipeline 11 with liquid, and close the replenishment equipment after replenishment is complete. Close the first vent valve 50 and the first replenishment valve 60. Open the second vent valve 80. Connect the second replenishment section 22 to the replenishment equipment, turn on the replenishment equipment, and open the second replenishment valve 90. Replenish the second pipeline 12 with liquid, and close the replenishment equipment after replenishment is complete. Close the second vent valve 80 and the second replenishment valve 90. Open the first valve 30 and the second valve 40, and connect the third pipeline 13 to the first pipeline 11 and the second pipeline 12.

[0114] Close the first valve 30 and the second valve 40. Open the first vent valve 50 and connect it to the gas source. Open the first vent valve 50 to drain the liquid through the first replenishment section 21. After draining, close the gas source. Close the first vent valve 50 and the first replenishment valve 60. Open the second vent valve 80 and connect it to the gas source. Open the second vent valve 80 to drain the liquid through the second replenishment section 22. After draining, close the gas source. Close the second vent valve 80 and the second replenishment valve 90. Disconnect the first port 111 of the first pipeline 11 from one container module 200, and disconnect the second port 121 of the second pipeline 12 from another container module 200.

[0115] The second pipeline 12 is connected to the second liquid replenishment section 22 and is equipped with a second vent valve 80. Therefore, the second pipeline 12 can be vented and replenished separately according to actual needs, or the entire liquid cooling assembly can be vented and replenished locally, which reduces the loss of liquid cooling medium and improves operating efficiency.

[0116] According to one embodiment of this application, as shown in Figures 4 and 6, the liquid cooling assembly further includes a second rotating member 100, and the second liquid replenishment section 22 is connected to the second pipeline 12 through the second rotating member 100. The second rotating member 100 is rotatably disposed relative to the second pipeline 12.

[0117] The second rotating component 100 can drive the second replenishment section 22 to move relative to the second pipeline 12, thereby adjusting the orientation and angle of the second replenishment section 22 and enabling it to be quickly aligned with the interface of the replenishment equipment, thus improving the ease of operation.

[0118] Secondly, this application provides an energy storage device, which includes a plurality of container modules 200 and a liquid cooling component as described above, the liquid cooling component being used to connect two adjacent container modules 200.

[0119] The energy storage device includes multiple container modules 200, which are used to house batteries.

[0120] In some examples, the container module 200 includes a container and a frame, the frame having a receiving cavity, the container being located within the receiving cavity, and the interior of the container housing the battery.

[0121] The container houses the batteries. The container's external structure is a box structure, which can be understood as having hollow cavities to house the batteries.

[0122] The box structure can be in various shapes, which can be selected according to the needs, such as cylinder, cuboid or cube, etc.

[0123] For example, the box structure is a cuboid structure. This is beneficial for transportation and assembly.

[0124] The energy storage device provided in this application enables multiple container modules 200 to share a single water-cooling unit, achieves efficient connection of the liquid cooling pipelines 10 between the container modules 200, and the first pipeline 11 or the second pipeline 12 has sufficient margin of movement, improving the sealing performance between the liquid cooling component and the container module 200, thereby improving the connection stability and reliability of the two.

[0125] According to one embodiment of this application, the energy storage device includes multiple liquid cooling components, with two liquid cooling components connected in parallel between two adjacent container modules 200.

[0126] One liquid cooling component delivers low-temperature liquid cooling medium into the container module 200, while another liquid cooling component discharges the recirculated liquid cooling medium after heat absorption. This reduces the mixing of liquid cooling media at different temperatures within the pipeline, thereby stabilizing the temperature of the liquid cooling medium entering the container module 200 and improving heat dissipation efficiency.

[0127] According to some embodiments of this application, referring to Figures 1 to 6, this application provides a liquid cooling assembly, which includes a liquid cooling pipeline 10 and a liquid replenishment pipeline 20.

[0128] The liquid cooling pipeline 10 includes a first pipeline 11, a second pipeline 12, a third pipeline 13, a first valve 30, a second valve 40, a first vent valve 50, a first replenishment valve 60, a first rotating component 70, a second vent valve 80, a second replenishment valve 90, and a second rotating component 100. The first pipeline 11 has a first port 111, at least a portion of which extends along a third direction z, and the first port 111 is used to connect to a container module 200. The second pipeline 12 has a second port 121, at least a portion of which extends along a third direction z, and the second port 121 is used to connect to another container module 200. The two container modules 200 are arranged along a first direction x. A third pipe 13 is disposed between and connected to the first pipe 11 and the second pipe 12. The third pipe 13 includes a main section 131, a first telescopic section 132a, and a second telescopic section 132b. The first telescopic section 132a and the second telescopic section 132b are disposed at opposite ends of the main section 131. The first telescopic section 132a is connected to the first pipe 11, and the second telescopic section 132b is connected to the second pipe 12. The main section 131 and the second telescopic section 132b extend along a first direction x, and the first telescopic section 132a extends along a second direction y. Along the extension direction of the liquid cooling assembly, the length of the main section 131 is greater than the length of the telescopic section. The telescopic section is a corrugated pipe or a flexible hose. A first valve 30 is disposed between the first pipe 11 and the first telescopic section 132a. A second valve 40 is disposed between the second pipe 12 and the second telescopic section 132b.

[0129] The replenishment line 20 is connected to the liquid cooling line 10 and is used to guide the liquid cooling medium into or out of the liquid cooling line 10. The replenishment line 20 includes a first replenishment section 21 and a second replenishment section 22. The first replenishment section 21 is connected to the first line 11, and the second replenishment section 22 is connected to the second line 12. The first replenishment section 21 is connected to the first line 11 via a first rotating member 70, which is rotatably disposed relative to the first line 11. The second replenishment section 22 is connected to the second line 12 via a second rotating member 100, which is rotatably disposed relative to the second line 12. A first vent valve 50 is disposed in the first line 11. A first replenishment valve 60 is disposed in the first replenishment section 21. A second vent valve 80 is disposed in the second line 12. A second replenishment valve 90 is disposed in the second replenishment section 22.

[0130] The first direction x, the second direction y, and the third direction z are all perpendicular to each other.

[0131] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A liquid cooling assembly, characterized in that, include: The liquid cooling pipeline includes a first pipeline, a second pipeline, and a third pipeline. The first pipeline has a first port for connecting to a container module. The second pipeline has a second port for connecting to another container module. The third pipeline is located between and connected to the first and second pipelines. The third pipeline includes a main body section and a telescopic section, with the telescopic section located at at least one end of the main body section. A replenishment pipeline is connected to the liquid cooling pipeline and is used to guide the liquid cooling medium into or out of the liquid cooling pipeline.

2. The liquid cooling assembly according to claim 1, characterized in that, The third pipeline includes two expansion sections, which are a first expansion section and a second expansion section. The first expansion section is connected to the first pipeline, and the second expansion section is connected to the second pipeline.

3. The liquid cooling assembly according to claim 2, characterized in that, The two container modules are arranged along a first direction; the main body section and the second telescopic section extend along the first direction, the first telescopic section extends along a second direction, and the second direction is perpendicular to the first direction.

4. The liquid cooling assembly according to claim 3, characterized in that, At least a portion of the first conduit extends along a third direction, and at least a portion of the second conduit extends along a third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

5. The liquid cooling assembly according to claim 1, characterized in that, Along the extension direction of the liquid cooling assembly, the length of the main body segment is greater than the length of the telescopic segment.

6. The liquid cooling assembly according to claim 1, characterized in that, The telescopic section is a corrugated pipe or a flexible hose.

7. The liquid cooling assembly according to claim 2, characterized in that, The liquid cooling assembly further includes a first valve and a second valve, wherein the first valve is disposed between the first pipeline and the first expansion joint, and the second valve is disposed between the second pipeline and the second expansion joint.

8. The liquid cooling assembly according to claim 7, characterized in that, The liquid replenishment pipeline includes a first liquid replenishment section, which is connected to the first pipeline; the liquid cooling assembly also includes a first vent valve and a first liquid replenishment valve, wherein the first vent valve is disposed in the first pipeline and the first liquid replenishment valve is disposed in the first liquid replenishment section.

9. The liquid cooling assembly according to claim 8, characterized in that, The liquid cooling assembly further includes a first rotating component, the first liquid replenishment section is connected to the first pipeline through the first rotating component, and the first rotating component is rotatably arranged relative to the first pipeline.

10. The liquid cooling assembly according to claim 7, characterized in that, The liquid replenishment pipeline includes a second liquid replenishment section, which is connected to the second pipeline; the liquid cooling assembly also includes a second vent valve and a second liquid replenishment valve, wherein the second vent valve is disposed in the second pipeline and the second liquid replenishment valve is disposed in the second liquid replenishment section.

11. The liquid cooling assembly according to claim 10, characterized in that, The liquid cooling assembly further includes a second rotating component, the second liquid replenishment section is connected to the second pipeline through the second rotating component, and the second rotating component is rotatably arranged relative to the second pipeline.

12. An energy storage device, characterized in that, include: Multiple container modules; And, according to any one of claims 1 to 11, the liquid cooling assembly is used to connect two adjacent container modules.

13. The energy storage device according to claim 12, characterized in that, The energy storage device includes multiple liquid cooling components, with two liquid cooling components connected in parallel between two adjacent container modules.

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