An energy storage thermal management system

Abstract

The application provides an energy storage thermal management system, and relates to the technical field of energy storage. The energy storage thermal management system comprises a battery pack, a liquid cooling unit, a main liquid supply pipe, a main liquid return pipe and a communication cabin. The battery pack is provided with a cooling liquid inlet and a cooling liquid outlet. The liquid cooling unit is provided with a water outlet and a water inlet. The main liquid supply pipe is connected with the cooling liquid inlet and the water outlet. The main liquid return pipe is connected with the cooling liquid outlet and the water inlet. The communication cabin is provided with an energy management system and an uninterruptible power supply system. The branch cold pipe extends into the communication cabin. One end of the branch cold pipe is connected with the main liquid supply pipe, and the other end is connected with the main liquid return pipe. The branch cold pipe in the communication cabin is provided with a radiator. The branch cold pipe is additionally arranged on the liquid cooling main pipeline of the main liquid supply pipe and the main liquid return pipe. The existing liquid cooling system is directly used, and the equipment occupation space and the installation cost are saved.

Description

Technical Field

[0001] This application relates to the field of energy storage equipment technology, and in particular to an energy storage thermal management system. Background Technology

[0002] An energy storage system (ESS) typically consists of core components such as a battery pack, a power conversion system (PCS), an energy management system (EMS), and an uninterruptible power supply (UPS). Among them, the EMS serves as the control center of the system, responsible for monitoring and optimizing the operating status of the energy storage system, while the UPS provides backup power to ensure that the system can still operate normally during power outages.

[0003] Currently, energy storage systems commonly employ liquid cooling technology for battery pack thermal management. This involves using liquid chillers to cool or heat the coolant, which is then pumped to the battery pack via pipelines to achieve temperature control. However, EMS and UPS, as electronic devices, also require operation within a suitable temperature range (e.g., 0°C to 40°C), otherwise performance degradation or malfunction may occur. Traditional solutions typically use separate air conditioners or heaters to control the temperature of the communication compartment (where the EMS / UPS is located), but this approach has the following problems: 1. Additional space required: Independent temperature control equipment requires additional installation space, increasing the system size. 2. Higher energy consumption: Air conditioners or electric heaters require additional power, increasing system operating costs. Utility Model Content

[0004] Based on this, this application provides an energy storage thermal management system that can utilize existing liquid cooling systems to achieve temperature control of the communication compartment.

[0005] This application provides an energy storage thermal management system, including:

[0006] The battery pack has a coolant inlet and a coolant outlet;

[0007] The liquid cooling unit is equipped with an outlet and an inlet.

[0008] Main supply pipe, which connects the coolant inlet and outlet;

[0009] Main return pipe, which connects the coolant outlet and the water inlet;

[0010] The communications compartment is equipped with an energy management system and an uninterruptible power supply system.

[0011] The branch cooling pipe is connected to the main liquid supply pipe at one end and to the main liquid return pipe at the other end. The branch cooling pipe is equipped with a radiator that exchanges heat with the communication compartment.

[0012] The energy storage thermal management system according to the embodiments of this application has at least the following beneficial effects: By adding branch cold pipes to the main liquid cooling main pipeline of the main liquid supply pipe and the main liquid return pipe, the coolant originally used only for battery pack temperature control is introduced into the communication compartment. Temperature control of the energy management system and the uninterruptible power supply system is achieved through the connection of the branch cold pipes. It directly utilizes the existing liquid cooling system, eliminating the need for additional air conditioning / heaters, thus saving equipment space. It reduces the procurement and installation costs of independent temperature control equipment. It integrates with the existing liquid cooling system without requiring modifications to the structure of the main liquid supply pipe and the main liquid return pipe.

[0013] According to some embodiments of this application, the branch cooling pipe extends into the communication compartment, and the branch cooling pipe located in the communication compartment is equipped with a heat sink.

[0014] In this embodiment, the branch cooling pipes extend directly into the communication compartment, preventing heat loss to the outside and improving energy efficiency. Simultaneously, the radiator can fully contact the gas inside the communication compartment, enabling better heat exchange.

[0015] According to some embodiments of this application, the communication compartment is provided with an air inlet, and the branch cold pipe is located outside the communication compartment and is arranged at the air inlet of the communication compartment. The branch cold pipe located at the air inlet of the communication compartment is provided with a heat sink.

[0016] In this embodiment, an air inlet is provided on the communication compartment. The branch cooling pipes do not extend directly into the communication compartment; instead, they pass through the air inlet, and the radiator is located at the inlet. A fan blows heated or cooled air into the communication compartment through the air inlet to control the ambient temperature inside, thereby controlling the temperature of the energy management system and uninterruptible power supply (UPS) equipment within the compartment. This avoids the space occupied by the branch cooling pipes, which would require redesigning the compartment and modifying it, thus achieving cost control.

[0017] According to some embodiments of this application, a control valve assembly is provided on the branch cooling pipe.

[0018] In this embodiment, in order to meet the various control requirements of the branch cooling pipes, a control valve group is provided on the branch cooling pipes to enhance the system's functionality.

[0019] According to some embodiments of this application, the control valve assembly includes a first proportional valve, which is disposed on a branch cooling pipe and located between the radiator and the main liquid supply pipe.

[0020] In this embodiment, by installing a first proportional valve on the branch cooling pipe, and the first proportional valve being located between the radiator and the main liquid supply pipe, the coolant flow rate can be dynamically adjusted according to the temperature inside the communication cabin.

[0021] According to some embodiments of this application, the control valve assembly includes a second proportional valve located on a branch cooling pipe and between the radiator and the main return pipe.

[0022] In this embodiment, by setting a second proportional valve, the opening degrees of both the first and second proportional valves can be adjusted simultaneously, allowing precise control of the branch flow direction and magnitude, and complete cut-off of heat exchange. When the communication compartment does not require temperature control, both the first and second proportional valves can be completely closed, physically isolating the branch cooling pipes from the main liquid cooling pipeline containing the main supply and return pipes. Simultaneously, by matching the opening degrees of the first and second proportional valves, the internal pressure of the branch cooling pipes can be maintained stably, reducing the impact on the main liquid cooling pipeline containing the main supply and return pipes. Furthermore, if one of the first and second proportional valves fails, the other valve can still partially control the flow, reducing the risk of system shutdown.

[0023] According to some embodiments of this application, a first control module is also included, which is configured to adjust the opening degree of a first proportional valve and a second proportional valve when the temperature of the energy management system and the uninterruptible power supply system deviates from the set value.

[0024] In this embodiment, when the temperature of the energy management system and the uninterruptible power supply system deviates from the set value, the opening degree of the first proportional valve and the second proportional valve is adjusted by the first control module, thereby adjusting the flow rate in the branch cooling pipe. This achieves automated temperature control system.

[0025] According to some embodiments of this application, the heat sink includes heat dissipation fins disposed on branch cold pipes.

[0026] In this embodiment, staggered heat dissipation fins are used to increase the surface area and improve the heat transfer coefficient.

[0027] According to some embodiments of this application, the liquid cooling unit includes a refrigeration module and a heating module.

[0028] In this embodiment, the liquid cooling unit includes a refrigeration module and a heating module. The refrigeration module outputs coolant for cooling, while the heating module outputs coolant for heating. This satisfies the temperature control requirements of both high-temperature and low-temperature environments.

[0029] According to some embodiments of this application, a fan is also included, with the fan outlet facing the energy management system and the uninterruptible power supply system, and a heat sink located in the fan's air outlet path.

[0030] In this embodiment, by installing a fan next to the radiator, the heat from the radiator on the branch cold pipe is blown to the energy management system and the uninterruptible power supply system through the fan, thereby achieving heat exchange and effectively controlling the ambient temperature of the energy management system and the uninterruptible power supply system inside the communication cabin.

[0031] According to some embodiments of this application, the fan is a speed-controlled fan.

[0032] In this embodiment, a speed-adjustable fan refers to a fan whose speed can be adjusted. A speed-adjustable fan allows the fan speed to be adjusted as needed based on the operating environment.

[0033] According to some embodiments of this application, a second control module is also included, which is configured to adjust the fan speed when the temperature of the energy management system and the uninterruptible power supply system deviates from the set value.

[0034] In this embodiment, the fan speed is controlled by the second control module to achieve automated temperature control.

[0035] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the energy storage thermal management system provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A schematic diagram of the structure in which the heat sink and fan are installed inside the communication compartment, as provided in the embodiments of this application;

[0038] Figure 2 This is a schematic diagram of the structure provided in the embodiments of this application, showing that the heat sink and fan are installed outside the communication compartment.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100 - Battery pack; 101 - Coolant inlet; 102 - Coolant outlet;

[0041] 200 - Liquid cooling unit; 201 - Water outlet; 202 - Water inlet;

[0042] 300-main liquid supply pipe;

[0043] 400 - Main return pipe;

[0044] 500-Communication Cabin;

[0045] 600-branch cold pipe;

[0046] 700-Radiator;

[0047] 801 - First proportional valve;

[0048] 802 - Second proportional valve;

[0049] 900-fan. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction 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.

[0052] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0053] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0054] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0055] refer to Figure 1 , Figure 2 As shown, this application discloses an energy storage thermal management system, including:

[0056] The battery pack 100 is provided with a coolant inlet 101 and a coolant outlet 102.

[0057] The liquid cooling unit 200 is provided with an outlet 201 and an inlet 202;

[0058] The main liquid supply pipe 300 connects the coolant inlet 101 and the outlet 201.

[0059] Main return pipe 400, which connects coolant outlet 102 and inlet 202;

[0060] Communication Module 500, which is equipped with an energy management system and an uninterruptible power supply system;

[0061] Branch cooling pipe 600, one end of which is connected to the main liquid supply pipe 300 and the other end of which is connected to the main liquid return pipe 400. The branch cooling pipe 600 is equipped with a radiator 700 that exchanges heat with the communication compartment 500.

[0062] A battery pack 100 refers to a standardized energy storage unit assembled by connecting multiple individual battery cells in series and parallel. It is the core component of an energy storage system for storing electrical energy. Batteries generate heat during charging and discharging; excessively high temperatures can lead to thermal runaway, while excessively low temperatures degrade performance. Therefore, battery packs have high heat generation capacity, especially during fast charging / high loads, requiring forced, quantitative heat dissipation. Furthermore, heating and insulation are necessary in low-temperature environments, placing high demands on the flow rate and temperature accuracy of the liquid cooling system.

[0063] The liquid-cooled unit 200 is a closed-loop heat exchange system that integrates refrigeration, heating, pumping, and control, and transfers heat through the circulation of coolant.

[0064] In this embodiment, the coolant from the liquid cooling unit 200 sequentially enters the flow channel inside the battery pack 100 through the outlet 201, the main supply pipe 300, and the coolant inlet 101, carrying away the heat generated by the battery pack 100. The heated high-temperature coolant flows out from the coolant outlet 102 and returns to the liquid cooling unit 200 through the main return pipe 400 and the inlet 202.

[0065] The heat generated by the battery cells is transferred to the liquid cooling plate wall through thermally conductive silicone pads or a metal casing. The liquid then flows through the channels inside the battery pack and exchanges heat with the liquid cooling plate wall via convective flow, carrying away the heat.

[0066] During this process, the coolant sequentially passes through the branch cooling pipe 600 and the radiator 700 to exchange heat with the communication compartment 500, and then flows back into the circulation pipeline of the main supply pipe 300 and the main return pipe 400. This completes the temperature control of the energy management system and uninterruptible power supply system within the communication compartment 500.

[0067] In this embodiment, a branch cooling pipe 600 is added to the main liquid cooling pipeline of the main supply pipe 300 and the main return pipe 400 to introduce the coolant originally used only for temperature control of the battery pack 100 into the communication compartment 500. Temperature control of the energy management system and the uninterruptible power supply system is achieved through the connection of the branch cooling pipe 600. This directly utilizes the existing liquid cooling system, eliminating the need for additional air conditioning / heaters and saving equipment space. It also reduces the procurement and installation costs of independent temperature control equipment. Furthermore, it integrates with the existing liquid cooling system without requiring modification of the main circuit structure.

[0068] In some embodiments of this application, the branch cooling pipe 600 extends into the communication compartment 500, and the branch cooling pipe 600 located in the communication compartment 500 is equipped with a heat sink 700. The branch cooling pipe 600 extends directly into the communication compartment 500, preventing heat loss to the outside and improving energy efficiency. At the same time, the heat sink 700 can have sufficient contact with the gas inside the communication compartment 500, enabling better heat exchange.

[0069] In some other embodiments, an air inlet can be provided on the communication compartment 500. The branch cooling pipe 600 does not extend directly into the communication compartment 500, but passes through the air inlet of the communication compartment 500, and the heat sink 700 is located at the air inlet. A fan blows heated or cooled air into the communication compartment 500 through the air inlet to control the ambient temperature inside the communication compartment 500, thereby controlling the equipment temperature of the energy management system and uninterruptible power supply system within the communication compartment 500. This avoids the problem of the branch cooling pipe 600 occupying space inside the communication compartment 500, requiring layout adjustments, and necessitating modifications to the communication compartment 500, thus achieving the goal of cost control.

[0070] In some embodiments of this application, a control valve assembly is provided on the branch cooling pipe 600.

[0071] In this embodiment, to meet various control requirements for the branch cooling pipe 600, such as when the liquid chiller unit 200 shuts down or the pressure in the main liquid cooling pipeline drops suddenly, residual coolant in the branch cooling pipe 600 may backflow into the main liquid cooling pipeline due to gravity / temperature difference, disrupting the system pressure balance. To prevent coolant backflow, a check valve can be installed on the branch cooling pipe 600. To regulate the flow rate of the branch cooling pipe 600, a proportional valve is installed. To shut off the branch cooling pipe 600, a control valve assembly such as a solenoid switch valve is installed. By installing a control valve assembly on the branch cooling pipe 600, the system's functionality is enhanced.

[0072] In some embodiments of this application, the control valve assembly includes a first proportional valve 801, which is disposed on the branch cooling pipe 600 and located between the radiator 700 and the main liquid supply pipe 300.

[0073] In this embodiment, by installing a first proportional valve 801 on the branch cooling pipe 600, and with the first proportional valve 801 located between the radiator 700 and the main liquid supply pipe 300, the coolant flow rate can be dynamically adjusted according to the temperature inside the communication compartment 500. Specifically, when the temperature inside the communication compartment 500 deviates significantly from a preset value, the opening of the first proportional valve 801 is increased to increase the flow rate of the branch cooling pipe 600, thereby improving the temperature regulation effect. When the temperature inside the communication compartment 500 approaches or reaches the preset value, the opening of the first proportional valve 801 is decreased to reduce the flow rate of the branch cooling pipe 600 or the first proportional valve 801 is closed.

[0074] In some embodiments of this application, the control valve assembly includes a second proportional valve 802, which is located on the branch cooling pipe 600 and between the radiator 700 and the main return pipe 400.

[0075] If only the first proportional valve 801 is installed, the coolant in the branch cooling pipe 600 located between the radiator 700 and the main return pipe 400 cannot be controlled. The residual coolant in the branch cooling pipe 600 may continue to slowly exchange heat due to natural convection or temperature difference, resulting in inaccurate temperature control.

[0076] In this embodiment, by setting a second proportional valve 802, the opening degree of the first proportional valve 801 and the second proportional valve 802 can be adjusted simultaneously, which can precisely control the direction and magnitude of the branch flow and completely cut off heat exchange. When the communication compartment 500 does not require temperature control, the first proportional valve 801 and the second proportional valve 802 can be completely closed, physically isolating the branch cooling pipe 600 from the main liquid supply pipe 300 and the main return pipe 400 in the liquid cooling main pipeline.

[0077] Meanwhile, by matching the opening degrees of the first proportional valve 801 and the second proportional valve 802, the internal pressure of the branch cooling pipe 600 can be kept stable, reducing the impact on the main cooling main pipeline where the main liquid supply pipe 300 and the main liquid return pipe 400 are located.

[0078] Furthermore, when one of the first proportional valve 801 and the second proportional valve 802 fails, the other valve can still partially control the flow, thereby controlling the flow of the branch cold pipe 600, reducing the risk of system shutdown, and improving the system's redundancy and safety.

[0079] In some embodiments of this application, a first control module is also included, which is configured to:

[0080] When the temperature of the energy management system and the uninterruptible power supply system deviates from the set value, the opening of the first proportional valve 801 and the second proportional valve 802 is adjusted.

[0081] In this embodiment, when the temperature of the energy management system and the uninterruptible power supply system deviates from the set value, the opening degree of the first proportional valve 801 and the second proportional valve 802 is adjusted by the first control module, thereby adjusting the flow rate in the branch cooling pipe 600. This achieves automated temperature control system.

[0082] Specifically, when the temperature inside the communication compartment 500 deviates significantly from the preset value, the first control module increases the opening of the first proportional valve 801 and the second proportional valve 802, thereby increasing the flow rate of the branch cooling pipe 600 and improving the temperature regulation effect. When the temperature inside the communication compartment 500 approaches or reaches the preset value, the first control module decreases the opening of the first proportional valve 801 and the second proportional valve 802, reducing the flow rate of the branch cooling pipe 600 or closing the first proportional valve 801 to reduce energy waste.

[0083] In some embodiments of this application, the radiator 700 includes heat dissipation fins disposed on the branch cold pipe 600.

[0084] In this embodiment, staggered heat dissipation fins with a spacing of 3-5 mm are used to increase the surface area and improve the heat transfer coefficient. Furthermore, the heat dissipation fins can be divided into heat dissipation fins for high-temperature environments and heat dissipation fins for low-temperature environments. The heat dissipation fins for high-temperature environments are made of copper and are heat-resistant. The heat dissipation fins for low-temperature environments are antifreeze.

[0085] In some embodiments of this application, the liquid cooling unit 200 includes a refrigeration module and a heating module.

[0086] Batteries generate heat during charging and discharging; excessively high temperatures can lead to thermal runaway, while excessively low temperatures degrade performance. Battery packs, with their high heat generation capacity, require forced, quantitative heat dissipation; however, they also require heating and insulation in low-temperature environments.

[0087] In this embodiment, the liquid cooling unit 200 includes a refrigeration module and a heating module. The refrigeration module outputs coolant for cooling, while the heating module outputs coolant for heating. This satisfies the temperature control requirements of both high-temperature and low-temperature environments.

[0088] In some embodiments of this application, a fan 900 is also included, with the air outlet of the fan 900 facing the energy management system and the uninterruptible power supply system, and the heat sink 700 is located in the air outlet path of the fan 900.

[0089] In this embodiment, by installing a fan 900 next to the radiator 700, the heat from the radiator 700 on the branch cooling pipe 600 is blown by the fan 900 to the energy management system and the uninterruptible power supply system, achieving heat exchange and thus effectively controlling the ambient temperature of the energy management system and the uninterruptible power supply system within the communication compartment 500. The fan 900 can enhance the air convection between the radiator 700 and the air, achieving rapid temperature regulation. Furthermore, when the ambient temperature and the preset operating temperature are not significantly different, the radiator 700 can be deactivated, and the fan 900 can operate independently.

[0090] In some embodiments of this application, fan 900 is a speed-regulating fan.

[0091] In this embodiment, a speed-adjustable fan refers to a fan whose speed can be adjusted. The temperature inside the communication compartment 500 is dynamically changing, and the speed-adjustable fan can adjust its speed as needed according to the operating environment. Specifically, when the temperature of the energy management system and the uninterruptible power supply system does not deviate significantly from the preset operating environment temperature, the fan speed can be reduced to decrease energy consumption. When the temperature deviation is large, the fan speed can be increased to meet the temperature control requirements.

[0092] In some embodiments of this application, a second control module is also included, which is configured to:

[0093] When the temperature of the energy management system and uninterruptible power supply system deviates from the set value, adjust the fan speed of 900.

[0094] In this embodiment, the second control module controls the fan speed of 900 to achieve automated temperature control. Specifically, when the temperature of the energy management system and uninterruptible power supply system deviates little from the ideal operating environment temperature, the second control module reduces the fan speed. When the temperature deviation is large, the second control module increases the fan speed to meet the temperature regulation requirements.

[0095] Furthermore, the first and second control modules can work together. When the temperature inside the communication compartment 500 deviates significantly from the preset value, the first control module increases the opening of the first proportional valve 801 and the second proportional valve 802, thereby increasing the flow rate of the branch cooling pipe 600 and improving the temperature regulation effect. Simultaneously, the second control module increases the speed of the fan 900 to meet the temperature control requirements.

[0096] When the temperature inside the communication compartment 500 approaches or reaches a preset value, the first control module reduces the opening of the first proportional valve 801 and the second proportional valve 802, thereby reducing the flow rate of the branch cooling pipe 600 or closing the first proportional valve 801. Simultaneously, the second control module reduces the speed of the fan 900.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An energy storage thermal management system, characterized in that, include: The battery pack (100) is provided with a coolant inlet (101) and a coolant outlet (102). A liquid cooling unit (200) is provided with an outlet (201) and an inlet (202). The main liquid supply pipe (300) is connected to the coolant inlet (101) and the outlet (201). Main return pipe (400), the main return pipe (400) is connected to the coolant outlet (102) and the water inlet (202); A communication compartment (500) is provided with an energy management system and an uninterruptible power supply system. A branch cooling pipe (600) is provided, one end of which is connected to the main liquid supply pipe (300) and the other end of which is connected to the main liquid return pipe (400). The branch cooling pipe (600) is provided with a radiator (700) for heat exchange with the communication compartment (500).

2. The energy storage thermal management system according to claim 1, characterized in that: The branch cooling pipe (600) extends into the communication compartment (500), and the branch cooling pipe (600) located in the communication compartment (500) is equipped with the radiator (700).

3. The energy storage thermal management system according to claim 1, characterized in that: The communication compartment (500) is provided with an air inlet. The branch cooling pipe (600) is located outside the communication compartment (500) and is arranged at the air inlet of the communication compartment (500). The branch cooling pipe (600) located at the air inlet of the communication compartment (500) is provided with the radiator (700).

4. The energy storage thermal management system according to claim 1, characterized in that: The branch cooling pipe (600) is equipped with a control valve assembly.

5. The energy storage thermal management system according to claim 4, characterized in that: The control valve assembly includes a first proportional valve (801), which is disposed on the branch cooling pipe (600) and located between the radiator (700) and the main liquid supply pipe (300).

6. The energy storage thermal management system according to claim 5, characterized in that: The control valve assembly includes a second proportional valve (802), which is located on the branch cooling pipe (600) and between the radiator (700) and the main return pipe (400).

7. The energy storage thermal management system according to claim 6, characterized in that: It also includes a first control module, which is configured to: When the temperature of the energy management system and the uninterruptible power supply system deviates from the set value, the opening degree of the first proportional valve (801) and the second proportional valve (802) is adjusted.

8. The energy storage thermal management system according to claim 1, characterized in that: The liquid cooling unit (200) includes a refrigeration module and a heating module.

9. The energy storage thermal management system according to claim 1, characterized in that: It also includes a fan (900) with its outlet facing the energy management system and the uninterruptible power supply system, and a radiator (700) located in the outlet path of the fan (900).

10. The energy storage thermal management system according to claim 9, characterized in that: The fan (900) is a speed-regulating fan, and the system also includes a second control module configured to: When the temperature of the energy management system and the uninterruptible power supply system deviates from the set value, the speed of the fan (900) is adjusted.

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