Heat dissipation device for energy storage system and working method of heat dissipation device

Abstract

The invention discloses a heat dissipation device for an energy storage system and a working method of the heat dissipation device, relates to the technical field of heat dissipation of the energy storage system, and aims to solve the problems of poor heat dissipation effect, poor stability, large potential safety hazard and high maintenance cost of a heat dissipation mode of the energy storage system in the prior art. The heat dissipation main body is of a hollow box body structure and is used for containing a battery pack and other parts of the energy storage system, the phase change heat dissipation module is arranged in the heat dissipation main body and comprises a plurality of phase change material layers, and the phase change material layers wrap the outer side of the battery pack and are used for absorbing heat generated by the battery pack and storing the heat through the phase change process; the heat pipe heat dissipation module comprises a plurality of heat pipes, one ends of the heat pipes are connected with the phase change heat dissipation module, the other ends of the heat pipes extend to the outside of the heat dissipation body and are used for rapidly conducting heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body, and the intelligent temperature control module comprises a temperature sensor, a controller and an adjusting device.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation of energy storage systems, and in particular to a heat dissipation device for an energy storage system and a working method thereof. Background Art

[0002] With the rapid development of new energy technologies, energy storage systems have been widely used in power supply, renewable energy storage, and other fields. However, energy storage systems generate a large amount of heat during the charging and discharging process. If this heat cannot be dissipated promptly and effectively, it can cause the internal temperature of the energy storage system to overheat, thereby affecting the performance and lifespan of the energy storage equipment and even causing safety accidents.

[0003] Currently, common heat dissipation methods for energy storage systems include air cooling and liquid cooling. Air cooling typically removes heat through forced convection from fans, but this method has limited heat dissipation effectiveness for high-power density energy storage systems. Furthermore, the fan generates considerable noise during operation and is prone to failure over long periods of operation, affecting heat dissipation stability. While liquid cooling offers relatively high heat dissipation efficiency, the system is complex and carries the risk of liquid leakage. Leakage can damage the energy storage device and potentially cause serious problems such as short circuits. Furthermore, the maintenance cost of the liquid cooling system is high. Therefore, the market urgently needs to develop a heat dissipation device and its operating method for energy storage systems to help address these issues. Summary of the Invention

[0004] The purpose of the present invention is to provide a heat dissipation device for an energy storage system and a working method thereof, so as to solve the problems of poor heat dissipation effect, poor stability, great safety hazards and high maintenance costs existing in the heat dissipation method of the energy storage system proposed in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a heat dissipation device for an energy storage system and a working method thereof, comprising a heat dissipation body, a battery pack, a phase change heat dissipation module, a heat pipe heat dissipation module, an intelligent temperature control module and a ventilation and diversion module, wherein the heat dissipation body is a hollow box structure for accommodating the battery pack and other components of the energy storage system, the phase change heat dissipation module is arranged inside the heat dissipation body, and comprises a plurality of phase change material layers, the phase change material layers are wrapped around the outside of the battery pack, and are used to absorb the heat generated by the battery pack and store the heat through a phase change process, the heat pipe heat dissipation module comprises a plurality of heat pipes, one end of the heat pipe is connected to the phase change heat dissipation module, and the other end extends to the outside of the heat dissipation body, and is used to quickly conduct the heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body, the intelligent temperature control module The block includes a temperature sensor, a controller and an adjusting device. The temperature sensor is arranged inside the heat dissipation body and is used to monitor the temperature inside the heat dissipation body in real time. The controller is electrically connected to the temperature sensor and the adjusting device respectively. The adjusting device includes a ventilation regulating valve for adjusting the ventilation volume of the ventilation guide module and a heat pipe control valve for controlling the heat dissipation efficiency of the heat pipe heat dissipation module. The controller controls the opening of the ventilation regulating valve and the heat pipe control valve according to the temperature signal monitored by the temperature sensor. The ventilation guide module includes an air inlet, an air outlet, a ventilation duct and a fan. The air inlet and the air outlet are respectively arranged on both sides of the heat dissipation body. The ventilation duct is connected to the air inlet. The fan is arranged in the ventilation duct to accelerate the flow of air in the ventilation duct and realize air exchange inside and outside the heat dissipation body.

[0006] Through the above technical solution, a multi-level heat dissipation system is formed by combining the phase change heat dissipation module, the heat pipe heat dissipation module and the ventilation and diversion module. The phase change heat dissipation module uses phase change materials to absorb and store heat, and can quickly absorb heat and stabilize the temperature in the early stage of the battery pack temperature rise. The heat pipe heat dissipation module has efficient thermal conductivity and can quickly transfer the heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body. The ventilation and diversion module further accelerates the dissipation of heat through forced convection of air. The three work together to greatly improve the heat dissipation effect and can effectively meet the heat dissipation needs of high power density energy storage systems. The intelligent temperature control module can accurately control the operating status of the ventilation control valve, heat pipe control valve and fan according to the actual temperature inside the heat dissipation body, thereby realizing intelligent adjustment of the heat dissipation system. This intelligent adjustment method can not only ensure the heat dissipation effect, but also reduce energy consumption when the temperature is low, improve energy utilization efficiency, and at the same time reduce equipment wear and extend the service life of the equipment.

[0007] In a preferred example, the present invention can be further configured as follows: the phase change material layer is made of a composite phase change material, the composite phase change material includes an organic phase change material and an inorganic phase change material, the organic phase change material and the inorganic phase change material are mixed in a mass ratio of 3:2, the organic phase change material is paraffin, and the inorganic phase change material is sodium sulfate decahydrate.

[0008] Through the above technical solution, the phase change material layer adopts a composite phase change material, which combines the advantages of organic phase change materials and inorganic phase change materials. It has the characteristics of large phase change latent heat, good thermal conductivity, and strong chemical stability. It can absorb and store heat more efficiently and improve the performance of the phase change heat dissipation module.

[0009] In a preferred example, the present invention can be further configured as follows: the heat pipe is a gravity heat pipe, the interior of the heat pipe is filled with a working fluid, the working fluid is water, the evaporation section of the heat pipe is located inside the heat dissipation body and contacts the phase change heat dissipation module, the condensation section is located outside the heat pipe, and heat dissipation fins are fixedly installed above the heat dissipation body. The heat dissipation fins are arranged on the condensation section of the heat pipe located outside the heat dissipation body to increase the heat dissipation area and improve the heat dissipation effect.

[0010] Through the above technical solution, the gravity heat pipe has a simple structure and high reliability, does not require an additional power device, and the working fluid is water, which is low-cost and pollution-free. The setting of the heat dissipation fins increases the heat dissipation area of ​​the heat pipe condensation section, further improving the heat dissipation efficiency of the heat pipe heat dissipation module.

[0011] In a preferred embodiment, the present invention can be further configured as follows: a guide plate is provided in the ventilation duct, the guide plate is arc-shaped, and the setting direction of the guide plate is consistent with the direction of air flow, which is used to guide the air to be evenly distributed and improve the heat dissipation efficiency; a filter is provided at the air inlet and outlet, and the filter is a metal mesh to prevent dust and debris from entering the heat dissipation body.

[0012] Through the above technical solution, the guide plates in the ventilation duct can guide the air to be evenly distributed, avoiding local air flow problems, and improving the heat dissipation uniformity and efficiency of the ventilation and guide module. The filters at the air inlet and outlet can effectively prevent dust and debris from entering the heat dissipation body, reducing damage to the energy storage equipment, improving the operational stability and safety of the energy storage system, and also reducing the maintenance frequency and cost of the equipment.

[0013] A method for operating a heat dissipation device for an energy storage system, comprising the following steps:

[0014] S1: Temperature monitoring: the temperature sensor monitors the temperature inside the heat dissipation body in real time and transmits the temperature signal to the controller;

[0015] S2: Intelligent control. The controller analyzes and processes the temperature signal. When the temperature is lower than the set first threshold, the controller controls the ventilation control valve and the heat pipe control valve to a smaller opening, and the fan runs at a low speed. When the temperature is higher than the set first threshold and lower than the set second threshold, the controller controls the ventilation control valve and the heat pipe control valve to increase the opening, and the fan runs at a medium speed. When the temperature is higher than the set second threshold, the controller controls the ventilation control valve and the heat pipe control valve to the maximum opening, and the fan runs at a high speed.

[0016] S3: Heat dissipation. During the heat dissipation process, the phase change heat dissipation module absorbs the heat generated by the battery pack and stores the heat through the phase change process. At the same time, the heat pipe heat dissipation module quickly transfers the heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body. The ventilation and diversion module accelerates the air flow through the fan, discharges the hot air inside the heat dissipation body, and the external cold air enters the heat dissipation body to achieve heat dissipation.

[0017] In a preferred example, the present invention can be further configured as follows: in step S3, when the heat pipe control valve of the heat pipe cooling module is at the maximum opening and the internal temperature of the heat dissipation body continues to rise, the controller sends an alarm signal to remind the staff to perform inspection and maintenance.

[0018] In a preferred example, the present invention may be further configured as follows: in step S1 , the temperature sensor monitors the temperature inside the heat dissipation body every 5 minutes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The invention forms a multi-level heat dissipation system by combining a phase change heat dissipation module, a heat pipe heat dissipation module and a ventilation and diversion module. The phase change heat dissipation module uses phase change materials to absorb and store heat, and can quickly absorb heat and stabilize the temperature in the early stage of the battery pack temperature rise. The heat pipe heat dissipation module has efficient thermal conductivity and can quickly conduct the heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body. The ventilation and diversion module further accelerates the dissipation of heat through forced convection of air. The three work together to greatly improve the heat dissipation effect and can effectively meet the heat dissipation needs of high power density energy storage systems. The intelligent temperature control module can accurately control the operating status of the ventilation regulating valve, heat pipe control valve and fan according to the actual temperature inside the heat dissipation body, thereby realizing intelligent adjustment of the heat dissipation system. This intelligent adjustment method can not only ensure the heat dissipation effect, but also reduce energy consumption when the temperature is low, improve energy utilization efficiency, and at the same time reduce equipment wear and extend the service life of the equipment.

[0021] 2. The phase change material layer of this invention adopts composite phase change material, which combines the advantages of organic phase change material and inorganic phase change material. It has the characteristics of large phase change latent heat, good thermal conductivity, and strong chemical stability. It can absorb and store heat more efficiently and improve the performance of the phase change heat dissipation module.

[0022] 3. The gravity heat pipe of this invention has a simple structure and high reliability, does not require an additional power device, and uses water as the working fluid, which is low-cost and pollution-free. The setting of the heat dissipation fins increases the heat dissipation area of ​​the heat pipe condensation section, further improving the heat dissipation efficiency of the heat pipe heat dissipation module.

[0023] 4. The guide plates in the ventilation duct of this invention can guide the air to be evenly distributed, avoiding local air flow problems, and improving the heat dissipation uniformity and efficiency of the ventilation and guide module. The filters at the air inlet and outlet can effectively prevent dust and debris from entering the heat dissipation body, reducing damage to the energy storage equipment, improving the operational stability and safety of the energy storage system, and also reducing the maintenance frequency and cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a heat dissipation device for an energy storage system according to the present invention;

[0025] Figure 2 The figure is a flow chart of the working method of a heat dissipation device for an energy storage system according to the present invention.

[0026] In the figure: 1. Heat dissipation body; 2. Phase change material layer; 3. Battery pack; 4. Heat pipe; 5. Heat pipe control valve; 6. Controller; 7. Temperature sensor; 8. Ventilation duct; 9. Fan; 10. Ventilation regulating valve; 11. Guide plate; 12. Heat dissipation fins. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] See also Figure 1 , an embodiment provided by the present invention: a heat dissipation device for an energy storage system and a working method thereof, comprising a heat dissipation body 1, a battery pack 3, a phase change heat dissipation module, a heat pipe heat dissipation module, an intelligent temperature control module and a ventilation and diversion module, the heat dissipation body 1 is a hollow box structure for accommodating the battery pack 3 and other components of the energy storage system, the phase change heat dissipation module is arranged inside the heat dissipation body 1, and comprises a plurality of phase change material layers 2, the phase change material layer 2 is wrapped around the outside of the battery pack 3, and is used to absorb the heat generated by the battery pack 3 and store the heat through a phase change process, the heat pipe heat dissipation module comprises a plurality of heat pipes 4, one end of the heat pipe 4 is connected to the phase change heat dissipation module, and the other end extends to the outside of the heat dissipation body 1, and is used to quickly conduct the heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body 1, the intelligent temperature control module comprises a temperature sensor The heat dissipation device 1 is a heat dissipation device 10, a heat dissipation device 10 and a heat pipe control valve 5 for controlling the heat dissipation efficiency of the heat pipe heat dissipation module. The heat dissipation device 10 comprises ...

[0031] See also Figure 1 The phase change material layer 2 is made of a composite phase change material, which includes an organic phase change material and an inorganic phase change material. The organic phase change material and the inorganic phase change material are mixed in a mass ratio of 3:2. The organic phase change material is paraffin and the inorganic phase change material is sodium sulfate decahydrate.

[0032] See also Figure 1 The heat pipe 4 is a gravity heat pipe. The heat pipe 4 is filled with a working medium, which is water. The evaporation section of the heat pipe 4 is located inside the heat dissipation body 1 and contacts the phase change heat dissipation module. The condensation section is located outside the heat pipe 4.

[0033] See also Figure 1 A guide plate 11 is provided in the ventilation duct 8. The guide plate 11 is arc-shaped. The setting direction of the guide plate 11 is consistent with the air flow direction. It is used to guide the air to be evenly distributed and improve the heat dissipation efficiency.

[0034] See also Figure 1 , filters are provided at the air inlet and outlet. The filters are metal meshes used to prevent dust and debris from entering the interior of the heat dissipation body 1.

[0035] See also Figure 1 A heat dissipation fin 12 is fixedly installed above the heat dissipation body 1. The heat dissipation fin 12 is arranged on the condensation section of the heat pipe 4 outside the heat dissipation body 1 to increase the heat dissipation area and improve the heat dissipation effect.

[0036] A method for operating a heat dissipation device for an energy storage system, comprising the following steps:

[0037] S1: Temperature monitoring: the temperature sensor 7 monitors the temperature inside the heat dissipation body 1 in real time and transmits the temperature signal to the controller 6;

[0038] S2: Intelligent control. The controller 6 analyzes and processes the temperature signal. When the temperature is lower than a set first threshold, the controller 6 controls the ventilation regulating valve 10 and the heat pipe control valve 5 to a relatively small opening, and the fan 9 to operate at a low speed. When the temperature is higher than the set first threshold and lower than a set second threshold, the controller 6 controls the ventilation regulating valve 10 and the heat pipe control valve 5 to increase their opening, and the fan 9 to operate at a medium speed. When the temperature is higher than the set second threshold, the controller 6 controls the ventilation regulating valve 10 and the heat pipe control valve 5 to be at their maximum opening, and the fan 9 to operate at a high speed.

[0039] S3: Heat dissipation. During the heat dissipation process, the phase change heat dissipation module absorbs the heat generated by the battery pack 3 and stores the heat through the phase change process. At the same time, the heat pipe heat dissipation module quickly conducts the heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body 1. The ventilation and diversion module accelerates the air flow through the fan 9, discharges the hot air inside the heat dissipation body 1, and the external cold air enters the heat dissipation body 1 to achieve heat dissipation.

[0040] See also Figure 2 In step S3, when the heat pipe control valve 5 of the heat pipe cooling module is at the maximum opening and the internal temperature of the heat dissipation body 1 continues to rise, the controller 6 sends an alarm signal to remind the staff to perform inspection and maintenance.

[0041] See also Figure 2 In step S1, the temperature sensor 7 monitors the temperature inside the heat dissipation body 1 every 5 minutes.

[0042] Working principle: The working principle of the heat dissipation device for the energy storage system of the present invention is based on the synergistic effect of multiple heat dissipation methods and intelligent control strategy.

[0043] During energy storage system operation, battery pack 3 continuously generates heat, which is first absorbed by the phase-change material layer of the phase-change heat dissipation module. When the composite phase-change material absorbs heat and reaches its phase-change temperature, it undergoes a phase transition from solid to liquid. During this process, the phase-change material absorbs a large amount of heat while maintaining a relatively constant temperature. This effectively suppresses the rapid rise in temperature around battery pack 3, providing a buffer and temperature stabilization.

[0044] As the amount of heat absorbed by the phase change material continues to increase, the heat pipe cooling module begins to work. The evaporation section of the gravity heat pipe is in close contact with the phase change cooling module. When the temperature of the evaporation section rises, the working fluid (water) inside the heat pipe absorbs heat and begins to evaporate, forming steam. Since the density of steam is lower than that of liquid working fluid, steam will rise inside the heat pipe to the condensation section. In the condensation section, due to the temperature difference with the external environment, the steam dissipates heat to the external environment, gradually cools and condenses into liquid working fluid. Under the action of gravity, the liquid working fluid flows back to the evaporation section along the inner wall of the heat pipe, absorbs heat and evaporates again, and this cycle repeats, quickly and efficiently conducting the heat absorbed by the phase change cooling module to the outside of the heat dissipation body.

[0045] At the same time, the ventilation guide module is also working continuously. The fan 9 runs in the ventilation duct 8, generating suction, so that the external cold air enters the ventilation duct 8 from the air inlet. The filter at the air inlet can prevent dust and debris from entering, ensuring the cleanliness of the air entering the heat dissipation body 1. The cold air is evenly distributed in the ventilation duct 8 under the guidance of the guide plate 11, and then exchanges heat with the hot air inside the heat dissipation body 1. After the hot air is heated, it is discharged to the outside of the heat dissipation body 1 through the air outlet under the action of the fan 9, realizing the air circulation inside and outside the heat dissipation body 1, further accelerating the dissipation of heat.

[0046] The intelligent temperature control module is the "brain" of the entire heat dissipation system. The temperature sensor 7 monitors the temperature inside the heat dissipation body 1 in real time and accurately transmits the temperature signal to the controller 6. The controller 6 analyzes and processes the temperature signal, and accurately controls the opening of the ventilation regulating valve 10 and the heat pipe control valve 5 and the speed of the fan 9 according to the pre-set first and second thresholds. When the temperature is low, the ventilation volume and the heat dissipation efficiency of the heat pipe 4 are reduced to reduce energy consumption; when the temperature rises, the ventilation volume and the heat dissipation efficiency of the heat pipe 4 are increased in time to ensure the heat dissipation effect. When an abnormal situation occurs, such as when the heat pipe control valve 5 is at the maximum opening but the temperature continues to rise, the controller 6 sends an alarm signal to remind the staff to check and maintain, thereby ensuring the stable and reliable operation of the entire heat dissipation system.

[0047] In summary, the present invention achieves efficient, stable and safe heat dissipation of the energy storage system through the organic combination of phase change heat dissipation, heat pipe heat dissipation, ventilation heat dissipation and intelligent control, and has important application value and broad market prospects.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A heat dissipation device for an energy storage system, comprising a heat dissipation body (1), a battery pack (3), a phase change heat dissipation module, a heat pipe heat dissipation module, an intelligent temperature control module and a ventilation and diversion module, characterized in that: The heat dissipation body (1) is a hollow box structure for accommodating a battery pack (3) and other components of an energy storage system. The phase change heat dissipation module is arranged inside the heat dissipation body (1) and includes a plurality of phase change material layers (2). The phase change material layers (2) are wrapped around the outside of the battery pack (3) and are used to absorb heat generated by the battery pack (3) and store heat through a phase change process. The heat pipe heat dissipation module includes a plurality of heat pipes (4). One end of the heat pipe (4) is connected to the phase change heat dissipation module and the other end extends to the outside of the heat dissipation body (1) and is used to quickly conduct the heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body (1). The intelligent temperature control module includes a temperature sensor (7), a controller (6) and an adjustment device. The temperature sensor (7) is arranged inside the heat dissipation body (1) and is used to monitor the heat dissipation in real time. The temperature inside the main body (1), the controller (6) is electrically connected to the temperature sensor (7) and the regulating device respectively, the regulating device includes a ventilation regulating valve (10) for regulating the ventilation volume of the ventilation guide module and a heat pipe control valve (5) for controlling the heat dissipation efficiency of the heat pipe heat dissipation module, the controller (6) controls the opening of the ventilation regulating valve (10) and the heat pipe control valve (5) according to the temperature signal monitored by the temperature sensor (7), the ventilation guide module includes an air inlet, an air outlet, a ventilation duct (8) and a fan (9), the air inlet and the air outlet are respectively arranged on both sides of the heat dissipation main body (1), the ventilation duct (8) is connected to the air inlet, and the fan (9) is arranged in the ventilation duct (8) for accelerating the flow of air in the ventilation duct (8) to achieve air exchange inside and outside the heat dissipation main body (1).

2. A heat dissipation device for an energy storage system according to claim 1, characterized in that: The phase change material layer (2) is made of a composite phase change material, which includes an organic phase change material and an inorganic phase change material, wherein the organic phase change material and the inorganic phase change material are mixed in a mass ratio of 3:2, the organic phase change material is paraffin, and the inorganic phase change material is sodium sulfate decahydrate.

3. The heat dissipation device for an energy storage system according to claim 1, characterized in that: The heat pipe (4) is a gravity heat pipe, the interior of the heat pipe (4) is filled with a working medium, the working medium being water, the evaporation section of the heat pipe (4) is located inside the heat dissipation body (1) and in contact with the phase change heat dissipation module, and the condensation section is located outside the heat pipe (4).

4. The heat dissipation device for an energy storage system according to claim 1, characterized in that: A guide plate (11) is provided in the ventilation duct (8), the guide plate (11) is arc-shaped, and the setting direction of the guide plate (11) is consistent with the air flow direction, and is used to guide the air to be evenly distributed and improve the heat dissipation efficiency.

5. The heat dissipation device for an energy storage system according to claim 1, characterized in that: The air inlet and the air outlet are both provided with filter screens, which are metal screens and are used to prevent dust and debris from entering the interior of the heat dissipation body (1).

6. The heat dissipation device for an energy storage system according to claim 1, characterized in that: A heat dissipation fin (12) is fixedly mounted above the heat dissipation body (1). The heat dissipation fin (12) is arranged on the condensation section of the heat pipe (4) outside the heat dissipation body (1) to increase the heat dissipation area and improve the heat dissipation effect.

7. A method for operating the heat dissipation device for an energy storage system according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: Temperature monitoring, the temperature sensor (7) monitors the temperature inside the heat dissipation body (1) in real time and transmits the temperature signal to the controller (6); S2: Intelligent control, the controller (6) analyzes and processes the temperature signal. When the temperature is lower than a set first threshold, the controller (6) controls the ventilation regulating valve (10) and the heat pipe control valve (5) to be at a relatively small opening, and the fan (9) operates at a low speed. When the temperature is higher than the set first threshold and lower than a set second threshold, the controller (6) controls the ventilation regulating valve (10) and the heat pipe control valve (5) to increase the opening, and the fan (9) operates at a medium speed. When the temperature is higher than the set second threshold, the controller (6) controls the ventilation regulating valve (10) and the heat pipe control valve (5) to be at a maximum opening, and the fan (9) operates at a high speed. S3: Heat dissipation. During the heat dissipation process, the phase change heat dissipation module absorbs the heat generated by the battery pack (3) and stores the heat through the phase change process. At the same time, the heat pipe heat dissipation module quickly conducts the heat absorbed by the phase change heat dissipation module to the outside of the heat dissipation body (1). The ventilation and diversion module accelerates the air flow through the fan (9), discharges the hot air inside the heat dissipation body (1), and the external cold air enters the heat dissipation body (1), thereby achieving heat dissipation.

8. The operating method of the heat dissipation device for an energy storage system according to claim 7, characterized in that: In step S3, when the heat pipe control valve (5) of the heat pipe heat dissipation module is at its maximum opening and the internal temperature of the heat dissipation body (1) continues to rise, the controller (6) sends an alarm signal to remind the staff to perform inspection and maintenance.

9. The operating method of the heat dissipation device for an energy storage system according to claim 7, characterized in that: In step S1, the temperature sensor (7) monitors the temperature inside the heat dissipation body (1) every 5 minutes.

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