New energy vehicle super-charging box type substation

Abstract

This invention discloses a prefabricated substation for supercharging new energy vehicles, relating to the field of substation technology. The prefabricated substation includes: a prefabricated housing with an equipment installation area inside, where power equipment is fixedly installed; and an evaporator plate disposed within the equipment installation area and tightly fitted to at least two sides and the bottom of the power equipment. This invention achieves heat transfer by fitting the evaporator plate tightly to the power equipment and constructing a phase change heat transfer cavity with capillary structures inside the evaporator plate. This allows heat to be rapidly absorbed and transferred through phase change, significantly improving heat transfer efficiency and reducing localized overheating compared to traditional single heat conduction or air cooling methods, thereby enhancing the operational stability of the power equipment. Simultaneously, by constructing a circulating path connecting evaporation and condensation, the phase change working fluid is continuously recycled between evaporation and condensation.

Description

Technical Field

[0001] This invention relates to the field of substation technology, specifically to a new energy vehicle supercharging box-type substation. Background Technology

[0002] With the rapid development of new energy vehicles, the demand for supporting supercharging infrastructure is constantly increasing. Supercharging box-type substations, as important equipment integrating power supply, transformation and control functions, are widely used in high-power charging scenarios. These devices typically use a box-type structure to centrally arrange internal power equipment, which generates a lot of heat during operation. Especially under high-power continuous output conditions, the internal temperature rise is significant. If heat dissipation is not timely, it can easily affect the operating efficiency and service life of the equipment. Therefore, how to achieve efficient and stable heat dissipation within a limited space has become one of the key issues in the design of this type of equipment.

[0003] In existing technologies, natural or forced air cooling is often used to dissipate heat inside the enclosure. However, due to the limited heat exchange capacity of air and uneven airflow organization, local overheating is prone to occur, making it difficult to meet the heat dissipation requirements under high power density conditions. At the same time, single air cooling methods are greatly affected by the external environment, and the heat dissipation effect decreases significantly in high-temperature environments or under closed conditions, resulting in insufficient system stability. In addition, traditional heat dissipation structures lack effective heat transfer and circulation paths, making it difficult to achieve efficient heat transfer and continuous release. Summary of the Invention

[0004] This invention provides a supercharging box-type substation for new energy vehicles, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a supercharging box-type substation for new energy vehicles, comprising: A box-type housing, wherein an equipment installation area is provided inside the box-type housing, and a power device is fixedly installed in the equipment installation area; An evaporation plate is disposed in the equipment installation area and is tightly fitted to at least two sides and the bottom of the power equipment to quickly absorb the heat generated during the operation of the power equipment and conduct it to the interior. The capillary structure is disposed inside the evaporation plate, forming a closed cavity inside the evaporation plate. The closed cavity is filled with a phase change working fluid. The capillary structure is used to adsorb, fix and guide the phase change working fluid to ensure that the phase change working fluid is uniformly attached to the inner wall of the evaporation plate. A condensing structure is provided on the top of the box-type shell and is connected to the sealed cavity of the evaporation plate. It is used to condense the phase change working fluid vapor formed by evaporation in the evaporation plate and convert it into a liquid state. A gas-liquid separation structure is connected to the sealed cavity of the evaporation plate and the condensation structure, respectively. It is used to stably transport the phase change working fluid vapor generated in the evaporation plate to the condensation structure, and to return the condensed liquid phase change working fluid in the condensation structure to the sealed cavity of the evaporation plate, so as to realize the recycling of the phase change working fluid. An auxiliary air-cooling structure is provided at the condensation structure, and the auxiliary air-cooling structure is used to provide auxiliary heat dissipation for the condensation structure when the natural heat dissipation capacity of the condensation structure is insufficient.

[0006] As a preferred embodiment of the present invention, the capillary structure includes: A sintered metal powder layer is provided in close contact with the inner wall of the evaporation plate to provide strong adsorption and thermal conductivity. A metal mesh is placed closely against the side of the sintered metal powder layer facing the center of the sealed cavity to assist in guiding the phase change working fluid, taking into account both adsorption force and permeability.

[0007] As a preferred embodiment of the present invention, the condensation structure includes: A condenser frame is fixedly installed on the top of the box-type shell, and a pressure relief valve is fixedly installed on one side of the condenser frame to discharge the non-condensable gas accumulated inside the condenser frame. The flow guide hole is located at the bottom of the condenser frame and is connected to the gas-liquid separation structure to enable the entry of the phase change working fluid vapor and the outflow of the liquid phase change working fluid. An enhanced heat exchange component is provided at the top of the condenser frame to increase the heat dissipation area of ​​the condenser structure and accelerate the dissipation of heat from the condenser frame to the outside of the box-type shell.

[0008] As a preferred embodiment of the present invention, the enhanced heat exchange component includes: Heat dissipation fins are uniformly and fixedly installed on the top of the condenser frame to increase the heat dissipation area and improve the heat conduction efficiency. A flow guide is fixedly installed on the side of the heat dissipation fins near the condenser frame.

[0009] As a preferred embodiment of the present invention, the condensation structure further includes: Air-cooled plates are fixedly arranged at equal intervals inside the condenser frame. The air-cooled plates are used to increase the condensation contact area and accelerate the condensation of the phase change working fluid vapor. A connecting gap is left between the bottom of the air-cooled plate and the condenser frame. The connecting gap corresponds to the guide hole and is used to allow the liquid phase change working fluid to flow smoothly into the guide hole and achieve reflux.

[0010] As a preferred embodiment of the present invention, the gas-liquid separation structure includes: A steam channel, one end of which is connected to the sealed cavity of the evaporator plate and the other end of which is connected to the condenser frame, is used to transport the phase change working fluid steam generated in the evaporator plate to the condenser frame. A reflux pipe is fixedly installed on the evaporation plate, and the lower end of the reflux pipe extends into the sealed cavity of the evaporation plate and is suspended above the phase change working fluid. The lower end of the reflux pipe is sealed, and a reflux hole is opened on the side of the lower end of the reflux pipe. The reflux hole is used to allow the liquid phase change working fluid to flow into the sealed cavity of the evaporation plate. The steam passage extends to a height higher than the reflux pipe on the condenser frame to achieve gas-liquid separation and prevent uncondensed steam from flowing back directly through the reflux pipe.

[0011] As a preferred embodiment of the present invention, the phase change working fluid is a gas-liquid two-phase working fluid. The gas-liquid two-phase working fluid can absorb the heat generated by the power device through liquid-gas phase change and release the heat through gas-liquid phase change, thereby realizing the transfer and dissipation of heat.

[0012] As a preferred embodiment of the present invention, the auxiliary air-cooling structure includes: The mounting frame and the connecting frame are fixedly connected. The connecting frame is fixedly installed on the condenser frame at the air-cooled plate. The air-cooled plate is provided with flow channels to allow the airflow generated by the auxiliary air-cooling structure to pass through the air-cooled plate and improve the condensation efficiency. The louvers are rotatably mounted on the mounting frame at equal intervals, and a motor for controlling the rotation of the louvers is fixedly mounted on the mounting frame. The motor can drive the louvers to rotate, thereby opening and closing the air duct and preventing dust and rainwater from entering the condenser frame. The fan is fixedly mounted on the connecting frame and is electrically connected to the detection component, which controls the start, stop and speed adjustment of the fan.

[0013] As a preferred embodiment of the present invention, the detection component includes: A pressure sensor and a temperature sensor are fixedly mounted on the flow guide shroud. The pressure sensor is used to detect the steam pressure inside the condenser frame, and the temperature sensor is used to detect the temperature inside the condenser frame. The two sensors work together to provide feedback on the heat dissipation status of the condenser structure and provide control signals for the start and stop of the auxiliary air-cooling structure.

[0014] As a preferred embodiment of the present invention, a box door is rotatably mounted on the box-type shell, and a sealing strip is provided between the box door and the box-type shell.

[0015] Compared with the prior art, the present invention provides a supercharging box-type substation for new energy vehicles, which has the following beneficial effects: This new energy vehicle supercharging box-type substation uses an evaporator plate that is in close contact with the power equipment for heat transfer. Inside the evaporator plate, a phase change heat transfer cavity with a capillary structure is constructed, allowing heat to be rapidly absorbed and transferred through phase change. Compared to traditional single heat conduction or air cooling methods, this significantly improves heat transfer efficiency and reduces localized overheating, thereby enhancing the stability of the power equipment operation. Simultaneously, by constructing a circulation path connecting evaporation and condensation, the phase change working fluid is continuously recycled between evaporation and condensation, facilitating a stable heat exchange process in a closed environment, reducing dependence on the external environment, and improving the overall reliability of the heat dissipation system. Furthermore, by separating the gas-liquid flow paths and forming an orderly transport relationship, the steam and liquid avoid mutual interference during the transport process, which helps maintain the continuity of the phase change process, reduces heat accumulation caused by the backflow of uncondensed gas, thereby improving heat exchange efficiency and stabilizing the system operation. By setting up enhanced heat exchange paths in the condensation area, the heat released during the condensation process can diffuse outward more quickly, which helps to increase the condensation rate and shorten the phase change cycle, thereby enhancing the overall heat dissipation capacity. Furthermore, in situations where condensation capacity is insufficient, the introduction of a controllable auxiliary heat dissipation method enables the system to automatically adjust the heat dissipation intensity according to the operating status. This helps maintain a stable condensation effect under high temperature or high load conditions, while reducing the impact of the external environment on the internal structure when not in operation. This balances heat dissipation performance with adaptability to the operating environment. The overall structure achieves efficient heat exchange while reducing energy consumption and extending equipment lifespan, making it suitable for high power density operating scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the overall top-down structure of the present invention; Figure 3 This is a schematic diagram of the overall internal structure of the present invention; Figure 4 This is a schematic diagram of a partial internal structure of the present invention; Figure 5 This is a schematic diagram of the evaporation plate of the present invention; Figure 6 This is a cross-sectional structural schematic diagram of the evaporator plate of the present invention; Figure 7 This is a schematic diagram of the capillary structure of the present invention; Figure 8 This is a schematic diagram of the evaporator plate of the present invention, viewed from the front cross-section. Figure 9 This is a schematic diagram of the structure of the condenser frame of the present invention; Figure 10 This is a schematic diagram of the reflux pipe of the present invention; Figure 11 This is a schematic diagram of the heat dissipation fins of the present invention; Figure 12 This is a schematic diagram of the auxiliary air-cooling structure of the present invention; Figure 13 This is a schematic diagram of the auxiliary air-cooling structure of the present invention from another perspective; Figure 14 This is a schematic diagram of the evaporator plate of the present invention, viewed in cross-section from the side.

[0017] In the diagram: 1. Box-type shell; 2. Box door; 3. Evaporator plate; 4. Gas-liquid two-phase working fluid; 5. Metal mesh; 6. Metal powder sintering; 7. Steam channel; 8. Return pipe; 9. Return hole; 10. Condenser frame; 11. Guide hole; 12. Pressure relief valve; 13. Air-cooled plate; 14. Connecting gap; 15. Flow channel; 16. Heat dissipation fins; 17. Flow guide shroud; 18. Pressure sensor; 19. Temperature sensor; 20. Mounting frame; 21. Connecting frame; 22. Louver; 23. Motor; 24. Fan. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-14 This invention discloses a supercharging box-type substation for new energy vehicles, comprising a box-type shell 1, an evaporator plate 3, a capillary structure, a condensation structure, a gas-liquid separation structure, and an auxiliary air-cooling structure.

[0020] The box-type housing 1 has an equipment installation area inside, where a power device is fixedly installed. The evaporation plate 3 is located in the equipment installation area and is tightly attached to at least two sides and the bottom of the power device. It is used to quickly absorb the heat generated during the operation of the power device and conduct it to the interior. The capillary structure is located inside the evaporation plate 3, forming a closed cavity inside the evaporation plate 3. The closed cavity is filled with a phase change working fluid. The capillary structure is used to adsorb, fix and guide the phase change working fluid to ensure that the phase change working fluid is uniformly attached to the inner wall of the evaporation plate 3.

[0021] The condensing structure is located on the top of the box-type shell 1 and is connected to the sealed cavity of the evaporating plate 3. It is used to condense the phase change working fluid vapor formed by evaporation in the evaporating plate 3 and convert it into liquid. The gas-liquid separation structure is connected to the sealed cavity of the evaporating plate 3 and the condensing structure respectively. It is used to stably transport the phase change working fluid vapor generated in the evaporating plate 3 to the condensing structure, and to return the condensed liquid phase change working fluid in the condensing structure to the sealed cavity of the evaporating plate 3, so as to realize the recycling of the phase change working fluid.

[0022] An auxiliary air-cooling structure is installed at the condensing structure. The auxiliary air-cooling structure is used to provide auxiliary heat dissipation for the condensing structure when the natural heat dissipation capacity of the condensing structure is insufficient.

[0023] The new energy vehicle supercharging box-type substation provided in this embodiment provides sealed protection for the entire substation with the box-type shell 1, preventing external dust, rainwater and other impurities from entering the equipment installation area, ensuring the stable operation of internal power equipment and heat dissipation components. The equipment installation area provides a stable mounting carrier for the power equipment, ensuring that the power equipment is installed firmly and preventing the components from loosening due to vibration during operation, which would affect the heat dissipation effect.

[0024] The evaporator plate 3 is in close contact with at least two sides and the bottom of the power device, which can maximize the contact with the heating surface of the power device, quickly absorb the heat generated during the operation of the power device, and efficiently conduct the heat to the sealed cavity inside itself, laying the foundation for subsequent heat dissipation. The capillary structure is set inside the evaporator plate 3, which can effectively adsorb and fix the phase change working fluid in the sealed cavity, while realizing the uniform flow of the phase change working fluid. This ensures that the phase change working fluid can be fully and uniformly attached to the inner wall of the evaporator plate 3, thereby fully contacting the heat conducted by the evaporator plate 3 and improving the heat absorption efficiency of the phase change working fluid.

[0025] After absorbing heat, the phase change working fluid undergoes phase change evaporation, forming phase change working fluid vapor. This vapor is condensed within the condensation structure, which is connected to the sealed cavity of the evaporation plate 3, and is converted into liquid phase change working fluid, thus releasing heat. The gas-liquid separation structure is connected to both the sealed cavity of the evaporation plate 3 and the condensation structure, enabling the orderly and stable transport of the phase change working fluid vapor generated in the evaporation plate 3 to the condensation structure. At the same time, it smoothly returns the condensed liquid phase change working fluid in the condensation structure to the sealed cavity of the evaporation plate 3, realizing the recycling of the phase change working fluid and ensuring the continuity and stability of the heat dissipation process.

[0026] The auxiliary air-cooling structure is located at the condensing structure. Under normal operating conditions, the condensing structure can condense the phase change working fluid vapor through natural heat dissipation. When the ambient temperature is too high or the power equipment load is too large, resulting in insufficient natural heat dissipation capacity of the condensing structure, the auxiliary air-cooling structure is activated to assist in heat dissipation of the condensing structure, further improving condensation efficiency and ensuring that the entire heat dissipation system can always operate stably. This ensures that the power equipment operates within a suitable temperature range, improves the operational reliability and service life of the entire supercharging box-type substation, and meets the usage requirements of high-power supercharging scenarios.

[0027] Please see Figures 1-8 As a preferred embodiment of the present invention, the capillary structure includes a sintered metal powder layer 6 and a metal mesh 5. The sintered metal powder layer 6 is closely attached to the inner wall of the evaporation plate 3 to provide strong adsorption and thermal conductivity. The metal mesh 5 is closely attached to the side of the sintered metal powder layer 6 facing the center of the sealed cavity to assist in guiding the phase change working fluid, taking into account both adsorption force and permeability.

[0028] In this embodiment, the capillary structure serves as the core component for the adsorption, fixation, and flow conduction of the phase change working fluid inside the evaporation plate 3. The rationality of its structure directly affects the heat absorption efficiency and cycle stability of the phase change working fluid. Therefore, a structural design combining the metal powder sintered layer 6 and the metal mesh 5 is adopted to achieve a synergistic improvement in adsorption force, thermal conductivity, and flow conduction.

[0029] The sintered metal powder layer 6 is tightly bonded to the inner wall of the evaporator plate 3. Its dense porous structure provides strong adsorption, firmly adsorbing the phase change working fluid within the sealed cavity of the evaporator plate 3 onto its inner wall. Simultaneously, the metal powder material possesses excellent thermal conductivity, rapidly transferring the heat absorbed by the power equipment from the evaporator plate 3 to the phase change working fluid, accelerating its endothermic evaporation process and ensuring efficient heat transfer. The metal mesh 5 is tightly bonded to the inner side of the sintered metal powder layer 6 (i.e., the side facing the center of the sealed cavity). Its mesh structure can... Effectively assisting in the flow of the phase change working fluid, on the one hand, it can avoid the problem of poor flow of the phase change working fluid caused by the excessively dense pores of the metal powder sintered layer 6, and on the other hand, it can take into account a certain adsorption force to prevent the phase change working fluid from local accumulation or detachment from the inner wall during the flow process. This ensures that the phase change working fluid can be evenly distributed inside the evaporation plate 3 and fully contact the metal powder sintered layer 6 and the inner wall of the evaporation plate 3, thereby improving the adsorption, fixation and flow guiding effect of the entire capillary structure on the phase change working fluid, ensuring the smooth circulation of the phase change working fluid, and providing strong support for the efficient operation of the entire heat dissipation system.

[0030] Please see Figures 1-9The aforementioned condensation structure includes a condensation frame 10, a flow guide hole 11, and an enhanced heat exchange assembly. The condensation frame 10 is fixedly installed on the top of the box-type shell 1, and a pressure relief valve 12 is fixedly installed on one side of the condensation frame 10 to discharge the non-condensable gas accumulated inside the condensation frame 10.

[0031] The flow guide hole 11 is opened at the bottom of the condensing frame 10 and is connected to the gas-liquid separation structure. It is used to realize the entry of the phase change working fluid vapor and the outflow of the liquid phase change working fluid. The heat exchange enhancement component is set at the top of the condensing frame 10 to increase the heat dissipation area of ​​the condensing structure and accelerate the heat dissipation from the condensing frame 10 to the outside of the box shell 1.

[0032] Preferably, the enhanced heat exchange component includes heat dissipation fins 16 and a flow guide shroud 17. The heat dissipation fins 16 are uniformly and fixedly installed on the top of the condenser frame 10 to increase the heat dissipation area and improve the heat transfer efficiency. The flow guide shroud 17 is fixedly installed on the side of the heat dissipation fins 16 close to the condenser frame 10.

[0033] Furthermore, the aforementioned condensation structure also includes an air-cooled plate 13, which is fixedly arranged at equal intervals inside the condensation frame 10. The air-cooled plate 13 is used to increase the condensation contact area and accelerate the condensation of the phase change working fluid vapor. A connecting gap 14 is left between the air-cooled plate 13 and the bottom of the condensation frame 10. The connecting gap 14 corresponds to the guide hole 11 and is used to allow the liquid phase change working fluid to flow smoothly into the guide hole 11 to achieve reflux.

[0034] In this embodiment, the condensation structure plays a crucial role in the condensation of phase change working fluid vapor and the dissipation of heat. The reasonable coordination of its various components can ensure that the condensation process is efficient and stable, thereby ensuring the heat dissipation effect of the entire heat dissipation system and meeting the heat dissipation requirements of the power equipment in the supercharged box-type substation.

[0035] Specifically, the condenser frame 10 is fixedly installed on the top of the box-type housing 1, providing a stable mounting base for components such as the pressure relief valve 12 and the air-cooled plate 13, and forming a relatively closed condensation chamber. This allows the phase change working fluid vapor delivered from the gas-liquid separation structure to remain stably within the condenser frame 10, fully contacting the condensing components and ensuring that the condensation reaction occurs fully. The pressure relief valve 12, fixedly installed on one side of the condenser frame 10, can promptly discharge non-condensable gases accumulated in the condenser frame 10 after long-term operation. If these non-condensable gases accumulate for a long time, they will cause excessive pressure and gas-liquid mixing problems. At the same time, they will hinder the contact between the phase change working fluid vapor and the inner wall of the condenser frame 10 and the air-cooled plate 13, reducing the condensation efficiency. Therefore, the setting of the pressure relief valve 12 can ensure the long-term stability of the condensation effect of the condensing structure. Furthermore, the guide hole 11 is located at the bottom of the condenser frame 10 and is connected to the gas-liquid separation structure, forming a bidirectional channel for the phase change working fluid vapor to enter and the liquid phase change working fluid to flow out. The phase change working fluid vapor transported by the gas-liquid separation structure enters the interior of the condenser frame 10 smoothly through the guide hole 11, and the liquid phase change working fluid formed after condensation flows out through the same guide hole 11, enters the gas-liquid separation structure, and finally flows back to the sealed cavity of the evaporator plate 3, realizing the recycling of the phase change working fluid.

[0036] The enhanced heat exchange component is set on the top of the condenser frame 10 to assist in heat dissipation when the heat dissipation effect of the condenser structure is insufficient, effectively improving the heat transfer efficiency. The flow guide shroud 17 is fixedly set on the side of the heat dissipation fin 16 near the condenser frame 10, which can concentrate the heat emitted from the top of the condenser frame 10 to the heat dissipation fin 16, prevent the heat from flowing back into the condenser frame 10, and facilitate the return flow of the condensed phase change working fluid. At the same time, it guides the orderly flow of air, further improving the heat dissipation performance of the enhanced heat exchange component.

[0037] Since the air-cooled plates 13 are fixed at equal intervals inside the condenser frame 10, the contact area between the phase change working fluid vapor and the condenser components is further increased. This allows the phase change working fluid vapor entering the condenser frame 10 to come into more full contact with the air-cooled plates 13, quickly release heat and condense into liquid, effectively accelerating the condensation speed. The pre-reserved connecting gap 14 between the air-cooled plates 13 and the bottom of the condenser frame 10 corresponds precisely to the guide hole 11, providing a smooth flow path for the condensed liquid phase change working fluid. This ensures that the liquid phase change working fluid can smoothly pass through the connecting gap 14 and collect into the guide hole 11, avoiding the accumulation of liquid phase change working fluid at the bottom of the condenser frame 10 and affecting the continuity of the condensation process. This ensures that the entire condensation structure can operate continuously and efficiently, providing reliable heat dissipation support for the stable operation of the entire supercharged box-type substation.

[0038] Please see Figures 1-10 As a preferred embodiment of the present invention, the gas-liquid separation structure includes a steam channel 7 and a reflux pipe 8. One end of the steam channel 7 is connected to the sealed cavity of the evaporator plate 3, and the other end is connected to the condenser frame 10. It is used to transport the phase change working fluid steam generated in the evaporator plate 3 to the condenser frame 10. The reflux pipe 8 is fixedly installed on the evaporator plate 3, and the lower end of the reflux pipe 8 extends into the sealed cavity of the evaporator plate 3 and is suspended above the phase change working fluid. The lower end of the reflux pipe 8 is sealed, and a reflux hole 9 is opened on the side of the lower end of the reflux pipe 8. The reflux hole 9 is used to allow the liquid phase change working fluid to flow into the sealed cavity of the evaporator plate 3.

[0039] Preferably, the extension height of the steam channel 7 on the condenser frame 10 is higher than the extension height of the return pipe 8, in order to achieve gas-liquid separation and prevent uncondensed steam from flowing back directly through the return pipe 8.

[0040] In this embodiment, the gas-liquid separation structure, as a key component connecting the evaporation plate 3 and the condensation structure, plays an important role in transporting phase change working fluid vapor, refluxing liquid phase change working fluid, and separating gas and liquid. Its structural design directly affects the circulation efficiency of the phase change working fluid and the stability of the entire heat dissipation system. Through the setting of the steam channel 7, reflux pipe 8, reflux hole 9 and the difference in their extension heights, the effective separation and orderly transport of phase change working fluid vapor and liquid phase change working fluid are achieved.

[0041] One end of the steam channel 7 is connected to the sealed cavity of the evaporator plate 3, and the other end is connected to the condenser frame 10, forming a dedicated channel for transporting phase change working fluid steam from the evaporator plate 3 to the condenser frame 10. When the phase change working fluid in the evaporator plate 3 absorbs the heat generated by the power device and evaporates to form phase change working fluid steam, the steam will be steadily transported to the condenser frame 10 through the steam channel 7 under its own pressure, and then enter the condenser frame 10 to complete the condensation process, ensuring that the phase change working fluid steam can enter the condensation structure efficiently and smoothly.

[0042] The reflux pipe 8 is fixedly installed on the evaporating plate 3, with its top end connected to the guide hole 11. Its lower end extends into the sealed cavity of the evaporating plate 3 and is suspended above the phase change working fluid. The lower end is sealed and has a reflux hole 9 on the side. This structural design can prevent the lower end of the reflux pipe 8 from directly contacting the phase change working fluid in the evaporating plate 3, preventing the phase change working fluid from directly entering the reflux pipe 8 and causing blockage. It can also achieve stable reflux of the liquid phase change working fluid through the reflux hole 9. The condensed liquid phase change working fluid is transported to its lower end through the reflux pipe 8 and then slowly flows into the sealed cavity of the evaporating plate 3 through the reflux hole 9 on the side to replenish the phase change working fluid consumed by evaporation and ensure the recycling of the phase change working fluid.

[0043] The extension height of the steam channel 7 on the condenser frame 10 is higher than that of the return pipe 8. This design is the core of achieving gas-liquid separation. During the condensation process of the phase change working fluid vapor entering the condenser frame 10, the incompletely condensed gaseous phase change working fluid will float upward due to its lower density, while the condensed liquid phase change working fluid will flow downward due to gravity. Because the steam channel 7 extends higher, the uncondensed steam will continue to remain in the condenser frame 10 for further condensation and will not directly enter the return pipe 8 with a lower extension height. This effectively prevents the uncondensed steam from flowing back to the sealed cavity of the evaporator plate 3 through the return pipe 8, ensuring that only the condensed liquid phase change working fluid enters the evaporator plate 3. This ensures the orderly circulation of the phase change working fluid and the heat dissipation effect of the heat dissipation system. It also avoids the accumulation of heat in the evaporator plate 3 caused by the backflow of uncondensed steam, further improving the operational stability and reliability of the entire supercharged box-type substation heat dissipation system.

[0044] Please see Figures 1-14As a preferred technical solution of the present invention, the phase change working medium is a gas-liquid two-phase working medium 4. The gas-liquid two-phase working medium 4 can absorb the heat generated by the power device through liquid-gas phase change and release the heat through gas-liquid phase change, thereby realizing the transfer and dissipation of heat.

[0045] In this embodiment, the gas-liquid two-phase working fluid 4 serves as the core medium for heat transfer and dissipation in the entire heat dissipation system. It is filled in the sealed cavity of the evaporator plate 3. Its liquid-gas phase change and gas-liquid phase change characteristics directly determine the heat absorption and heat transfer energy of the heat dissipation system, thereby ensuring the heat dissipation requirements of the power equipment in the entire supercharged box-type substation. The gas-liquid two-phase working fluid 4 is adsorbed, fixed, and uniformly attached to the inner wall of the evaporator plate 3 by the capillary structure. When the power equipment generates heat during operation, the heat is quickly conducted to the gas-liquid two-phase working fluid 4 through the evaporator plate 3. At this time, the gas-liquid two-phase working fluid 4 undergoes a liquid-gas phase change, absorbs a large amount of heat, and is converted into phase change working fluid vapor, thereby achieving rapid absorption of heat from the power equipment, effectively reducing the temperature of the power equipment, and preventing the power equipment from affecting its operational stability due to overheating.

[0046] The converted phase change working fluid vapor is transported to the condenser frame 10 of the condenser structure through the vapor channel 7 of the gas-liquid separation structure. After contacting the condenser components in the condenser frame 10, a gas-liquid phase change occurs, releasing a large amount of heat previously absorbed. This heat is then dissipated to the outside of the box shell 1 through the enhanced heat exchange components of the condenser structure, completing the heat transfer and dissipation process. The condensed gas-liquid two-phase working fluid 4 is smoothly returned to the sealed cavity of the evaporator plate 3 through the return pipe 8 and return hole 9 of the gas-liquid separation structure, and is re-adsorbed and fixed by the capillary structure, waiting to absorb the heat generated by the power equipment next time, realizing the recycling of the gas-liquid two-phase working fluid 4.

[0047] Throughout the process, the gas-liquid two-phase working medium 4 continuously absorbs, transfers, and dissipates heat through its own liquid-gas phase change and gas-liquid phase change, providing core medium support for the efficient operation of the entire heat dissipation system, ensuring that the power equipment can operate stably within a suitable temperature range, thereby improving the operational reliability and service life of the entire new energy vehicle supercharging box substation.

[0048] Please see Figures 1-13 As a preferred technical solution of the present invention, the auxiliary air-cooling structure includes a mounting frame 20, a connecting frame 21, louvers 22 and a fan 24. The mounting frame 20 and the connecting frame 21 are fixedly connected. The connecting frame 21 is fixedly installed on the condenser frame 10 at the air-cooling plate 13. The air-cooling plate 13 is provided with a flow channel 15, which is used to allow the airflow generated by the auxiliary air-cooling structure to pass through the air-cooling plate 13, thereby improving the condensation efficiency.

[0049] The louvers 22 are rotatably mounted on the mounting frame 20 at equal intervals, and a motor 23 for controlling the rotation of the louvers 22 is fixedly mounted on the mounting frame 20. The motor 23 can drive the louvers 22 to rotate, realize the opening and closing of the air duct, and prevent dust and rainwater from entering the condenser frame 10. The fan 24 is fixedly mounted on the connecting frame 21. The fan 24 is electrically connected to the detection component, and the detection component controls the start, stop and speed adjustment of the fan 24.

[0050] The aforementioned detection components include a pressure sensor 18 and a temperature sensor 19. The pressure sensor 18 and the temperature sensor 19 are fixedly mounted on the flow guide shroud 17. The pressure sensor 18 is used to detect the steam pressure inside the condenser frame 10, and the temperature sensor 19 is used to detect the temperature inside the condenser frame 10. The two work together to provide feedback on the heat dissipation status of the condensation structure and provide control signals for the start and stop of the auxiliary air-cooling structure.

[0051] In this embodiment, the auxiliary air-cooling structure serves as a supplementary heat dissipation component to the condensing structure, providing auxiliary heat dissipation when the natural heat dissipation capacity of the condensing structure is insufficient. The detection component provides precise control basis for the start-up, shutdown, and speed adjustment of the auxiliary air-cooling structure. The two work together to ensure that the condensing structure always maintains a highly efficient condensation state, thereby ensuring the stable operation of the entire heat dissipation system. Since the mounting frame 20 and the connecting frame 21 are fixedly connected, they form the mounting base for the auxiliary air-cooling structure. The connecting frame 21 is fixedly installed on the condenser frame 10 at the air-cooling plate 13, ensuring that the auxiliary air-cooling structure can accurately correspond to the core heat dissipation area of ​​the condenser structure. The flow channels 15 opened on the air-cooling plate 13 can provide a smooth flow channel for the airflow generated by the auxiliary air-cooling structure, allowing the airflow to pass smoothly through the air-cooling plate 13 and directly act on the surface of the air-cooling plate 13, accelerating the condensation rate of the phase change working fluid vapor on the air-cooling plate 13 and effectively improving the condensation efficiency. The louvers 22 are rotatably mounted on the mounting frame 20 at equal intervals. The motor 23 fixed on the mounting frame 20 can drive the louvers 22 to rotate flexibly. When the auxiliary air-cooling structure is not started, the motor 23 drives the louvers 22 to close, realizing the closure of the air duct. This can effectively block external dust, rainwater and other impurities from entering the interior of the condenser frame 10, preventing impurities from adhering to the air-cooling plate 13, the inner wall of the condenser frame 10 and other components, affecting the condensation effect and the service life of the components.

[0052] When the auxiliary air-cooling structure is activated, motor 23 drives louvers 22 to open, opening the air duct and ensuring smooth airflow to guarantee the auxiliary heat dissipation effect. Fan 24 is fixedly mounted on connecting frame 21, serving as the core air-blowing component of the auxiliary air-cooling structure. It is electrically connected to the detection component and can start / stop and adjust its speed based on the signal feedback from the detection component, ensuring the accuracy and energy efficiency of the auxiliary heat dissipation. The detection component consists of pressure sensor 18 and temperature sensor 19, both fixedly mounted on the air guide shroud 17. They can accurately detect the operating status within the condenser frame 10. Pressure sensor 18 detects the vapor pressure within the condenser frame 10, and temperature sensor 19 detects the temperature within the condenser frame 10. When the temperature within the condenser frame 10 reaches a certain value, the sensor detects the vapor pressure within the condenser frame 10. When the steam pressure is too high, it indicates that the natural heat dissipation capacity of the condensing structure is insufficient. At this time, the pressure sensor 18 and temperature sensor 19 will feed back the detection signal to the control terminal. The control terminal will control the fan 24 to start and adjust the speed according to the detection value. At the same time, it will control the motor 23 to drive the louvers 22 to open. The airflow generated by the fan 24 passes through the flow channel 15 and acts on the air-cooled plate 13 to assist the condensing structure in heat dissipation. When the temperature and steam pressure in the condensing frame 10 drop to the normal range, the detection component will feed back a signal to control the fan 24 to stop running and the motor 23 to drive the louvers 22 to close, restoring the natural heat dissipation state. This not only ensures the condensing efficiency but also avoids energy waste, providing a reliable auxiliary heat dissipation guarantee for the stable operation of the entire supercharged box-type substation.

[0053] Please see Figure 1 and Figure 2 As a preferred technical solution of the present invention, a box door 2 is rotatably installed on the box shell 1, and a sealing strip is provided between the box door 2 and the box shell 1.

[0054] In this embodiment, the enclosure 1 serves as the external protective carrier of the entire supercharged box-type substation. Its sealing performance directly affects the operational stability of the internal power equipment and heat dissipation components. The door 2, as the openable component of the enclosure 1, has a particularly critical sealing performance with the enclosure 1. The sealing strip effectively compensates for the gap between the door 2 and the enclosure 1, ensuring the sealing and protection effect of the enclosure.

[0055] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle super-charging box-type substation, characterized in that, include: A box-type housing (1) is provided inside the box-type housing (1), and a power device is fixedly installed in the equipment installation area; Evaporation plate (3), the evaporation plate (3) is disposed in the equipment installation area and is tightly attached to at least two sides and the bottom surface of the power equipment; The capillary structure is set inside the evaporation plate (3), and the evaporation plate (3) forms a closed cavity inside the evaporation plate (3). The closed cavity is filled with a phase change working fluid. The capillary structure is used to adsorb, fix and guide the phase change working fluid to ensure that the phase change working fluid is uniformly attached to the inner wall of the evaporation plate (3). The condensing structure is located on the top of the box-type shell (1) and is connected to the sealed cavity of the evaporation plate (3) for condensing the phase change working fluid vapor formed by evaporation in the evaporation plate (3) and converting it into a liquid state. The gas-liquid separation structure is connected to the sealed cavity of the evaporation plate (3) and the condensation structure, respectively. It is used to stably transport the phase change working fluid vapor generated in the evaporation plate (3) to the condensation structure, and to return the condensed liquid phase change working fluid in the condensation structure to the sealed cavity of the evaporation plate (3) so that the phase change working fluid circulates.

2. The new energy vehicle super-charging box-type substation according to claim 1, characterized in that, The capillary structure includes: Metal powder sintered layer (6) is closely attached to the inner wall of the evaporation plate (3) to provide strong adsorption force and thermal conductivity. Metal mesh (5) is closely attached to the side of the metal powder sintered layer (6) facing the center of the sealed cavity to assist in guiding the phase change working fluid, taking into account both adsorption force and permeability.

3. The new energy vehicle super-charging box-type substation according to claim 1, characterized in that, The condensation structure includes: A condenser frame (10) is fixedly installed on the top of the box-type housing (1). A pressure relief valve (12) is fixedly installed on one side of the condenser frame (10) to discharge the non-condensable gas accumulated in the condenser frame (10). A flow guide hole (11) is provided at the bottom of the condenser frame (10). The flow guide hole (11) is connected to the gas-liquid separation structure and is used to realize the entry of the phase change working fluid vapor and the outflow of the liquid phase change working fluid. The enhanced heat exchange component is located on the top of the condenser frame (10) to increase the heat dissipation area of ​​the condenser structure and accelerate the dissipation of heat from the condenser frame (10) to the outside of the box shell (1).

4. The new energy vehicle super-charging box-type substation according to claim 3, characterized in that, The enhanced heat exchange component includes: Heat dissipation fins (16) are uniformly fixed on the top of the condenser frame (10) to increase the heat dissipation area and improve the heat conduction efficiency; A flow guide (17) is fixedly installed on the side of the heat dissipation fin (16) near the condenser frame (10).

5. The new energy vehicle super-charging box-type substation according to claim 3, characterized in that, The condensation structure also includes: Air-cooled plate (13), the air-cooled plate (13) is fixedly arranged at equal intervals inside the condenser frame (10), the air-cooled plate (13) is used to increase the condensation contact area; A connecting gap (14) is left between the bottom of the air-cooled plate (13) and the condenser frame (10). The connecting gap (14) corresponds to the guide hole (11) and is used to allow the liquid phase change working fluid to flow smoothly into the guide hole (11) to achieve reflux.

6. The new energy vehicle super-charging box-type substation according to claim 1, characterized in that, The gas-liquid separation structure includes: Steam channel (7), one end of which is connected to the sealed cavity of the evaporator plate (3) and the other end is connected to the condenser frame (10), for transporting the phase change working fluid steam generated in the evaporator plate (3) to the condenser frame (10); The reflux pipe (8) is fixedly installed on the evaporation plate (3). The lower end of the reflux pipe (8) extends into the sealed cavity of the evaporation plate (3) and is suspended above the phase change working medium. The lower end of the reflux pipe (8) is sealed, and a reflux hole (9) is opened on the side of the lower end of the reflux pipe (8). The reflux hole (9) is used to allow the liquid phase change working medium to flow into the sealed cavity of the evaporation plate (3). The extension height of the steam channel (7) on the condenser frame (10) is higher than the extension height of the return pipe (8) to achieve gas-liquid separation and prevent uncondensed steam from flowing back directly through the return pipe (8).

7. The new energy vehicle super-charging box-type substation according to claim 1, characterized in that, The phase change working medium is a gas-liquid two-phase working medium (4). The gas-liquid two-phase working medium (4) can absorb the heat generated by the power device through liquid-gas phase change and release the heat through gas-liquid phase change.

8. The new energy vehicle super-charging box-type substation according to claim 1, characterized in that, It also includes an auxiliary air-cooling structure, which is disposed at the condensation structure; The auxiliary air-cooling structure includes: The mounting frame (20) and the connecting frame (21) are fixed to each other. The connecting frame (21) is fixedly installed on the condenser frame (10) at the air-cooled plate (13). The air-cooled plate (13) is provided with a flow channel (15). Louvered blades (22) are rotatably mounted on a mounting frame (20) at equal intervals, and a motor (23) for controlling the louvered blades (22) to rotate is fixedly mounted on the mounting frame (20). The motor (23) drives the louvered blades (22) to rotate. The fan (24) is fixedly installed on the connecting frame (21). The fan (24) is electrically connected to the detection component, and the detection component controls the start and stop and speed adjustment of the fan (24).

9. A new energy vehicle supercharging box-type substation according to claim 8, characterized in that, The detection component includes: Pressure sensor (18) and temperature sensor (19) are fixedly mounted on the flow guide (17). Pressure sensor (18) is used to detect the steam pressure in the condenser frame (10), and temperature sensor (19) is used to detect the temperature in the condenser frame (10).

10. A new energy vehicle supercharging box-type substation according to claim 1, characterized in that, A door (2) is rotatably mounted on the box-type housing (1), and a sealing strip is provided between the door (2) and the box-type housing (1).

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