Liquid cooling pipeline for energy storage system and energy storage system

Abstract

The utility model discloses a liquid cooling pipeline used for an energy storage system and the energy storage system. The liquid cooling pipeline used for the energy storage system comprises a main pipeline; one end of each first-stage branch is connected to the main pipeline, and the first-stage branches are arranged at intervals in the length direction of the main pipeline; one end of each secondary branch is connected to the primary branch, and the secondary branches are arranged at intervals in the length direction of the primary branch; wherein the other end of the secondary branch is provided with a stop valve, and the stop valve is suitable for being communicated with the liquid cooling plate. According to the embodiment of the utility model, the liquid cooling pipeline for the energy storage system has the advantages of uniform heat dissipation, convenience in operation, reduced maintenance difficulty and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of electrochemical energy storage technology, and in particular to a liquid cooling pipeline and energy storage system for an energy storage system. Background Technology

[0002] Currently, it is extremely important for energy storage systems to keep battery modules within a suitable temperature range. An effective temperature control system can not only ensure the safety and lifespan of the energy storage system, but also improve performance and efficiency to a certain extent.

[0003] In related technologies, some energy storage systems use liquid cooling plates to exchange heat between battery modules. Coolant is delivered to the liquid cooling plates via liquid cooling pipes and then distributed to different liquid cooling plates through different branches. However, the different flow paths in these branches result in varying resistance to the coolant upon entering each individual battery module, leading to significant differences in cooling performance. Furthermore, the location of the on / off control valve interferes with the position of the cabinet door, limiting the operating space and increasing operational difficulty. Utility Model Content

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a liquid-cooled pipeline for an energy storage system, which has advantages such as improved operational convenience and reduced maintenance difficulty.

[0005] Another objective of this invention is to provide an energy storage system having the aforementioned liquid-cooled pipeline for an energy storage system.

[0006] According to a first aspect of the present invention, a liquid-cooled pipeline for an energy storage system includes: a main pipeline; a plurality of primary branches, one end of which is connected to the main pipeline and arranged at intervals along the length of the main pipeline; a plurality of secondary branches, one end of which is connected to the primary branches and arranged at intervals along the length of the primary branches; wherein, the other end of each secondary branch is provided with a shut-off valve, which is adapted to be connected to a liquid-cooled plate and to control the on / off state of the secondary branches and the liquid-cooled plate.

[0007] According to the liquid cooling pipeline of this utility model embodiment, the shut-off valve is set between the secondary branch and the liquid cooling plate, that is, at the outlet of the battery module. Compared with the connection between the primary branch and the secondary branch, that is, between the longitudinal beams of the two cabinet doors of the box, the shut-off valve can be more easily accessed by the operator when making adjustments or maintenance, reducing the operational difficulties caused by being confined to a small space.

[0008] Therefore, the liquid cooling pipeline according to the embodiments of this utility model has the advantages of uniform heat dissipation, convenient operation, and reduced maintenance difficulty.

[0009] According to some embodiments of the present invention, the main pipeline extends at least partially horizontally, and a plurality of primary branches are connected to the horizontally extending portion of the main pipeline. The plurality of primary branches are arranged in multiple columns, and the secondary branches connected to each column of primary branches are arranged in multiple rows.

[0010] According to some embodiments of the present invention, the shut-off valve has a branch connection port and a liquid-cooling connection port. The branch connection port of the shut-off valve is pluggably connected to the other end of the secondary branch, and the liquid-cooling connection port of the shut-off valve is pluggably connected to the liquid-cooling plate.

[0011] According to some embodiments of this utility model, the main pipeline is a metal pipe, and the primary branch pipeline and the secondary branch pipeline are nylon pipes.

[0012] According to some embodiments of this utility model, the outer periphery of the primary branch and the secondary branch is wrapped with a heat insulation layer, and the main branch is exposed to the environment.

[0013] According to an embodiment of the second aspect of the present invention, an energy storage system is provided, including a liquid-cooled pipeline according to the first aspect of the present invention described above.

[0014] According to some embodiments of this utility model, it includes: a housing; a battery module installed in the housing; a liquid cooling plate installed in the housing, the liquid cooling plate having a liquid cooling water passage flowing through the battery module; an inlet pipe and an outlet pipe, at least one of the inlet pipe and the outlet pipe employing the liquid cooling pipe of the above embodiments, the inlet pipe being connected to the inlet of the liquid cooling water passage, and the outlet pipe being connected to the outlet of the liquid cooling water passage.

[0015] According to some embodiments of this utility model, the inlet pipe and the outlet pipe are both connected to the same side of the liquid cooling plate.

[0016] According to some embodiments of the present invention, both the inlet pipe and the outlet pipe adopt liquid-cooled pipes according to embodiments of the present invention. The main pipe of the inlet pipe and the main pipe of the outlet pipe are arranged in parallel, and the primary branch pipes of the inlet pipe and the primary branch pipes of the outlet pipe are arranged alternately along the length of the main pipe.

[0017] According to some embodiments of the present invention, the multiple secondary branches of the water inlet pipe are all connected to the same side of the primary branch to which they belong, and the secondary branches of the water outlet pipe are all connected to the same side of the primary branch to which they belong; wherein, the orientation of the secondary branches of the water inlet pipe is opposite to the orientation of the secondary branches of the water outlet pipe.

[0018] According to some embodiments of the present invention, the box body is constructed with a floor drain corresponding to the location of the main pipeline.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the liquid cooling pipeline according to an embodiment of the present utility model;

[0022] Figure 2 This is another structural schematic diagram of the liquid cooling pipeline according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the shut-off valve according to an embodiment of the present utility model.

[0024] Figure label:

[0025] Liquid cooling piping 1, inlet water piping 11, outlet water piping 12, main pipe 100, primary branch pipe 200.

[0026] Secondary branch 300, stop valve 400, branch connection port 401, liquid cooling connection port 402. Detailed Implementation

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

[0028] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0029] In the description of this utility model, "multiple" means two or more.

[0030] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0031] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0032] The liquid cooling pipeline 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0033] like Figures 1-3 As shown, the liquid cooling pipeline 1 according to an embodiment of the present invention includes a main pipeline 100, a plurality of primary pipelines 200 and a plurality of secondary pipelines 300.

[0034] Multiple primary branch lines 200 are connected at one end to the main pipeline 100 and are arranged at intervals along the length of the main pipeline 100. Multiple secondary branch lines 300 are connected at one end to the primary branch lines 100 and are arranged at intervals along the length of the primary branch lines 100. The other end of each secondary branch line 300 is equipped with a shut-off valve 400, which is adapted to be connected to a liquid cooling plate and control the on / off state of the secondary branch line 300 and the liquid cooling plate.

[0035] For example, coolant is stored in the tank of a liquid chiller, and the water pump of the liquid chiller provides power to drive the coolant to flow along a predetermined water path. The liquid cooling pipe 1 can serve as the inlet pipe 11 between the liquid chiller inlet and the liquid cooling plate inlet, or as the outlet pipe 12 between the liquid chiller outlet and the liquid cooling plate outlet. The main pipe 100 of the outlet pipe 12 is located above the main pipe 100 of the inlet pipe 11, and the secondary branches 100 of the inlet pipe 11 and the secondary branches 100 of the outlet pipe 12 respectively inlet and outlet water on both sides of the liquid cooling plate.

[0036] According to the liquid cooling pipeline 1 of this utility model embodiment, when the liquid cooling pipeline 1 serves as the inlet pipeline 11, the coolant is branched from the main pipeline 100 to multiple primary branches 200, and then from the multiple primary branches 200 to multiple secondary branches 300, finally entering different liquid cooling plates to cool the battery module. When the liquid cooling pipeline 1 serves as the outlet pipeline 12, the coolant flows out from different liquid cooling plates to the secondary branches 300, then converges to the primary branches 200, then converges to the main pipeline 100, and finally flows back to the liquid chiller. The flow path of the coolant entering different liquid cooling plates is the same.

[0037] Furthermore, when the coolant cools different battery modules, the flow path in the cooling pipeline is the same. It is split into the primary branch 200 and then split into different secondary branches 300. Thus, through the same-path liquid cooling pipeline design, the flow resistance of the coolant entering different liquid cooling plates is also small, and the flow resistance of the coolant flowing out of different liquid cooling plates is also small. The cooling effect of the liquid cooling plates corresponding to different secondary branches is also relatively uniform.

[0038] Furthermore, by installing a shut-off valve 400 between the secondary branch 300 and the liquid cooling plate, the on / off connection between different secondary branches 300 and the liquid cooling plate can be controlled separately. The shut-off valve 400 is positioned close to the liquid cooling plate, rather than between different liquid cooling plates. When the operator opens the cabinet door of the energy storage system ( Figure 1 When the valve is positioned as shown in the dashed box, the shut-off valve 400 can be operated directly. The valve 400 is not obstructed by the longitudinal beam of the cabinet door. When adjusting or maintaining the valve, the operator can more easily access the shut-off valve 400, reducing the operational difficulties caused by being confined to a small space.

[0039] Therefore, the liquid cooling pipeline 1 according to the embodiment of this utility model has the advantages of uniform heat dissipation, convenient operation, and reduced maintenance difficulty.

[0040] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the main road 100 extends at least partly in the horizontal direction, and multiple primary branch roads 200 are connected to the horizontally extended portion of the main road 100. The multiple primary branch roads 200 are arranged in multiple columns, and the secondary branch roads 300 connected to each column of primary branch roads 200 are arranged in multiple rows.

[0041] For example, the main pipeline 100 is equipped with quick-connect fittings, which connect to 6 primary branch pipelines 200. Each primary branch pipeline 200 is connected to 8 secondary branch pipelines 300 via tee fittings, and each secondary branch pipeline 300 is connected to a shut-off valve 400.

[0042] The horizontal extension of the main pipeline 100 and the orderly arrangement of primary branch lines 200 and secondary branch lines 300 effectively utilize space, facilitating the arrangement of more cooling channels within a limited installation area and improving system compactness. Arranging the primary branch lines 200 and secondary branch lines 300 in multiple columns and rows enables more uniform coolant distribution, improving cooling efficiency and heat dissipation, and reducing the risk of localized overheating.

[0043] In some embodiments of this utility model, such as Figure 3 As shown, the shut-off valve 400 has a branch connection port 401 and a liquid cooling connection port 402. The branch connection port 401 of the shut-off valve 400 is pluggably connected to the other end of the secondary branch 300, and the liquid cooling connection port 402 of the shut-off valve 400 is pluggably connected to the liquid cooling plate.

[0044] The shut-off valve 400 can be used to control the flow of coolant, controlling its on / off state to ensure ideal cooling performance and adapt to cooling requirements under different operating conditions. Furthermore, the branch connection port 401 and liquid cooling connection port 402 of the shut-off valve 400 connect to different components. This connection method provides flexibility, allowing users to easily replace or upgrade the liquid cooling plate and related components according to actual needs, adapting to different cooling requirements and system configurations.

[0045] In some embodiments of this utility model, the main pipeline 100 is a metal pipe, and the primary branch pipeline 200 and the secondary branch pipeline 300 are nylon pipes.

[0046] For example, the main pipe 100 is made of stainless steel. Metal pipes have excellent thermal conductivity, allowing for rapid heat transfer from the coolant and ensuring effective heat dissipation, thus improving cooling efficiency. Because the surface temperature of the main metal pipe 100 is low, water vapor from the surrounding environment condenses on its surface, forming condensate which is then promptly discharged. This process effectively enhances the cooling effect and reduces the impact of temperature differences on the operation of the liquid-cooled piping 1 to some extent. The primary branch pipe 200 and the secondary branch pipe 300 can be made of nylon. Nylon material can withstand high temperatures and pressures within a certain range, ensuring that the liquid-cooled piping 1 can effectively transfer coolant during use.

[0047] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the outer perimeter of primary branch road 200 and secondary branch road 300 is covered with an insulation layer (not shown in the figure), while the main road 100 is exposed to the environment.

[0048] Furthermore, the main pipe 100 of the inlet pipe 11 is exposed to the environment, while the main pipe 100 of the outlet pipe 12 may not be exposed, but is also wrapped with an insulation layer, the thickness of which can be 3mm. The insulation layer effectively reduces the temperature difference between the liquid cooling pipe 1 and the battery module, reduces heat loss caused by temperature differences, and maintains the overall structure's operating temperature within the ideal range, thereby optimizing battery pack performance and extending its service life. Simultaneously, it reduces the condensation of water vapor in the air on the surface of the liquid cooling pipe 1, preventing the generation of condensate and thus avoiding condensate from entering the battery module and preventing short circuits.

[0049] The energy storage system of this utility model embodiment is described below.

[0050] The energy storage system according to an embodiment of the present invention includes a housing, a battery module, a liquid cooling plate, an inlet pipe 11, and an outlet pipe 12. The battery module is installed inside the housing. The liquid cooling plate is installed inside the housing and has a liquid cooling water passage that flows through the battery module. At least one of the inlet pipe 11 and the outlet pipe 12 is the liquid cooling pipe 1 described in the present invention, with the inlet pipe 11 connected to the inlet of the liquid cooling pipe 1 and the outlet pipe 12 connected to the outlet of the liquid cooling pipe 1.

[0051] For example, the coolant enters the inlet of the liquid cooling pipe 1 through the inlet pipe 11 and then enters the battery module. It exchanges heat with the battery cell through the liquid cooling plate. The heated coolant then enters the secondary branch 300 through the outlet of the liquid cooling water circuit, then returns to the primary branch 200, and finally flows to the main pipe 100 and out through the outlet main pipe 102, completing the entire heat exchange process.

[0052] The energy storage system according to the embodiments of the present invention, by utilizing the liquid cooling pipeline 1 of the above embodiments of the present invention, has the advantages of uniform heat dissipation, convenient operation, and reduced maintenance difficulty.

[0053] In some embodiments of this utility model, the inlet pipe 11 and the outlet pipe 12 are both connected to the same side of the liquid cooling plate.

[0054] Connecting the inlet pipe 11 and the outlet pipe 12 on the same side can effectively improve the flow efficiency of the coolant within the liquid cooling plate, promote rapid heat conduction and exchange, and enhance overall cooling performance. Simultaneously, placing the inlet pipe 11 and the outlet pipe 12 on the same side simplifies the arrangement of the liquid cooling pipes 1, reduces the complexity of energy storage system installation, and makes the overall structure more compact, facilitating installation and maintenance.

[0055] In some embodiments of this utility model, both the inlet pipe 11 and the outlet pipe 12 adopt the liquid-cooled pipe 1 according to the embodiment of this utility model. The main pipe 100 of the inlet pipe 11 and the main pipe 100 of the outlet pipe 12 are arranged in parallel, and the primary branch pipes 200 of the inlet pipe 11 and the primary branch pipes 200 of the outlet pipe 12 are arranged alternately along the length direction of the main pipe 100.

[0056] The alternating arrangement of the primary branches 200 of the inlet pipe 11 and the outlet pipe 12 increases the contact area between the coolant and the liquid cooling plate, promoting more efficient heat exchange and thus improving overall cooling performance. The alternating arrangement of the primary branches 200 allows for smoother coolant flow, reduces turbulence and flow resistance, and ensures that the coolant can run along a more reasonable flow path, thereby improving the cooling efficiency of the energy storage system.

[0057] In some embodiments of this utility model, the multiple secondary branches 300 of the inlet pipe 11 are all connected to the same side of the primary branch 200 to which they belong, and the secondary branches 300 of the outlet pipe 12 are all connected to the same side of the primary branch 200 to which they belong. The orientation of the secondary branches 300 of the inlet pipe 11 is opposite to that of the secondary branches 300 of the outlet pipe 12.

[0058] The secondary branch 300 of the inlet pipe 11 and the secondary branch 300 of the outlet pipe 12 form the inlet and outlet respectively, effectively avoiding the longitudinal beams of the cabinet door. The opposite orientation of the secondary branch 300 of the inlet pipe 11 and the outlet pipe 12 helps to form a stable fluid flow direction within the energy storage system, avoiding flow interference and enhancing cooling efficiency. The connection of the secondary branch 300 to the same side of the primary branch 200 helps to increase the heat exchange area between the coolant and the liquid cooling plate, allowing heat to be carried away more effectively and improving overall cooling performance.

[0059] In some embodiments of this utility model, the box body is constructed with a floor drain corresponding to the position of the main pipeline 100.

[0060] The main function of a floor drain is to promptly remove condensation generated inside the enclosure, preventing moisture buildup within the system and maintaining a dry environment around the equipment. Condensation buildup can lead to corrosion or damage to internal components; a floor drain effectively reduces this risk and extends the equipment's lifespan.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A liquid cooling line for an energy storage system, characterized by, The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line.

2. The liquid-cooled tubing of claim 1, wherein, The application relates to a liquid cooling pipe line.

3. The liquid-cooled tubing of claim 1, wherein, The application relates to a liquid cooling pipe line.

4. The liquid-cooled tubing of claim 1, wherein, The application relates to a liquid cooling pipe line.

5. The liquid-cooled tubing of claim 4, wherein, The application relates to a liquid cooling pipe line.

6. An energy storage system characterized by, The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line.

7. The energy storage system of claim 6, wherein, The application relates to a liquid cooling pipe line.

8. The energy storage system of claim 6, wherein, The application relates to a liquid cooling pipe line.

9. The energy storage system of claim 8, wherein, The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line.

10. The energy storage system of claim 6, wherein, The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. The application relates to a liquid cooling pipe line. 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