A new energy automobile charging host cabinet and working method

Abstract

This invention relates to the field of main unit cabinet technology for car charging, and discloses a main unit cabinet for new energy vehicle charging and its working method. The main unit cabinet includes a main unit cabinet housing and a cooling fan. The cooling fan is installed on the top of the inner cavity of the main unit cabinet housing. A positioning plate is provided on the top of the main unit cabinet housing, and a fixing plate is snapped onto the top of the positioning plate. The main unit cabinet housing, positioning plate, and fixing plate together have an air-gathering groove. A heat-reducing pipe is provided inside the positioning plate, and a positioning ring assembly is sleeved on the outer wall of the heat-reducing pipe. By adopting a composite heat dissipation structure combining vortex tube effect and forced airflow, the heat dissipation capacity of the main unit cabinet for car charging is improved without adding additional electrical cooling equipment. This solves the problems of insufficient heat dissipation efficiency of conventional cooling fans under high-power operation conditions, easy local overheating, and equipment derating shutdown. By using inclined air inlets, hot air forms two opposing high-speed airflows, utilizing kinetic energy exchange and pressure difference to achieve efficient vortex cooling.

Description

Technical Field

[0001] This invention relates to the field of main unit cabinets for automobile charging, specifically to a main unit cabinet for charging new energy vehicles and its working method. Background Technology

[0002] The main unit cabinet for car charging is the core equipment that provides centralized power supply, intelligent control, safety protection and power management for multiple electric vehicle charging piles. It is a key component of the centralized charging system for electric vehicles.

[0003] With the widespread adoption of centralized charging systems for electric vehicles, the main charging cabinet, which serves as the core power supply for multiple charging piles, operates continuously under high power and high load conditions. This generates significant heat in its internal power modules, control modules, and other components. Currently, most main charging cabinets utilize cooling fans for passive convection cooling. However, under continuous high-power operation, conventional air cooling methods have limited efficiency and struggle to quickly dissipate the concentrated heat. This can lead to localized hot spots within the cabinet, causing issues such as derating, slow response, and even overheating shutdowns, ultimately affecting the overall stability of the charging system.

[0004] To improve heat dissipation, some main unit cabinets have added semiconductor cooling or compression cooling modules. However, these methods significantly increase the overall energy consumption and structural complexity of the unit. Furthermore, cooling components are often prone to failure, leading to a higher failure rate in complex outdoor environments characterized by high temperatures, humidity, and dust, resulting in high maintenance costs. Additionally, existing main unit cabinet cooling components mostly use threaded connections or fixed installations, making assembly and disassembly cumbersome and requiring specialized tools. This hinders rapid on-site inspection and component replacement, failing to meet the needs of efficient operation and maintenance for centralized charging stations.

[0005] Furthermore, conventional main unit cabinets have independent cooling ducts and cabinet installation structures, resulting in low space utilization and poor overall integration. Uneven airflow distribution within the cabinet also easily leads to heat accumulation and high humidity, which can cause condensation and dust buildup over long-term operation, accelerating the aging and corrosion of internal electrical components and reducing the cabinet's lifespan and safety performance in outdoor environments. Therefore, developing a charging main unit cabinet that is highly efficient in heat dissipation, low in energy consumption, easy to disassemble and maintain, and highly integrated has become an urgent technical problem to be solved in this field.

[0006] Therefore, there is a need to provide a new energy vehicle charging main unit cabinet and its working method, which aims to solve the above problems. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a new energy vehicle charging main cabinet and its working method.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a new energy vehicle charging main unit cabinet and its working method, comprising a main unit cabinet shell and a cooling fan, wherein the cooling fan is installed on the top of the inner cavity of the main unit cabinet shell, a positioning plate is provided on the top of the main unit cabinet shell, a fixing plate is snapped onto the top of the positioning plate, and the main unit cabinet shell, the positioning plate, and the fixing plate together form an air-gathering groove. The positioning plate is equipped with a heat-cooling pipe inside, and a positioning ring assembly is sleeved on the outer wall of the heat-cooling pipe. The positioning ring assembly is fixedly connected to the inside of the fixing plate. A hollow connecting plate is fixedly connected to the outer wall of the main unit cabinet shell. Several rotating exhaust pipes are rotatably connected to the inner wall of the main unit cabinet shell, and each of the rotating exhaust pipes is connected to the hollow connecting plate. Each of the rotating exhaust pipes is arranged linearly and equidistantly.

[0009] Preferably, one end of the heat-cooling tube is connected to the hollow connecting plate, and the end of the heat-cooling tube away from the hollow connecting plate is fitted with a wind-blocking plug.

[0010] Preferably, the cooling pipe has several inclined air inlets arranged in a ring at equal intervals in the middle.

[0011] Preferably, the top of the positioning plate is symmetrically fixedly connected to a limiting tube, and the inside of each of the two limiting tubes is slidably connected to a connecting column. The bottom of the connecting column is fixedly connected to a limiting platform, and the top of the connecting column is fixedly connected to a button. The button is slidably connected to the top of the inner cavity of the limiting tube.

[0012] Preferably, a return spring is sleeved on the outer wall of the connecting column, one end of the return spring is fixedly connected to the button, and the end of the return spring away from the button is fixedly connected to the inner wall of the limiting tube.

[0013] Preferably, a limiting bead is provided between the connecting column and the limiting platform, and the two limiting beads are slidably connected inside the limiting tube.

[0014] Preferably, the top of the hollow connecting plate is symmetrically provided with limiting grooves, and the limiting tube is slidably connected inside the limiting grooves.

[0015] A method for operating a charging main unit cabinet for new energy vehicles, the method of operating the charging main unit cabinet for vehicles includes the following steps: S1 The cooling fan draws the hot air generated inside the main unit cabinet upwards and guides it through the air duct to form a directional swirling airflow. S2 Swirling hot air enters the cooling pipe tangentially through the inclined air inlet, forming two opposing high-speed airflows inside the pipe. Through kinetic energy exchange and pressure difference, heat separation is achieved, converting the hot air into low-temperature cold air. S3 Low-temperature cold air enters the hollow connecting plate along the heat dissipation pipe, and the hollow connecting plate distributes the cold air to each rotating exhaust pipe; S4 The rotating exhaust duct delivers cool air into the main unit cabinet in a spiral jet pattern, ensuring that the cool air evenly covers all heat-generating areas and achieves balanced and rapid cooling inside the cabinet. S5 By pressing the button to control the extension and retraction of the limit bead, tool-free quick installation and disassembly of the positioning plate, fixing plate and hollow connecting plate can be achieved.

[0016] Preferably, in S2, the hot air enters the inclined air inlet tangentially along the outer wall of the cooling pipe, forming a double-layered reverse swirling airflow inside the pipe. Heat separation is achieved through kinetic energy exchange, and the cooled air enters the hollow connecting plate in one direction, while the heat is discharged outward through the wind choke.

[0017] Preferably, in step S5, pressing the button causes the connecting column and the limiting platform to move downward, causing the limiting bead to retract into the limiting tube to release the jamming; after releasing the button, the reset spring pushes the connecting column to reset, and the limiting platform squeezes the limiting bead to extend outward and jam into the limiting groove, thereby achieving automatic locking and positioning.

[0018] The present invention provides a new energy vehicle charging main unit cabinet and its working method. Compared with the prior art, the beneficial effects of the present invention are: By adopting a composite heat dissipation structure that combines vortex tube effect with forced air supply, the heat dissipation capacity of the main unit cabinet for car charging is improved without adding additional electrical cooling equipment or increasing additional energy consumption. This solves the problems of insufficient heat dissipation efficiency of conventional cooling fans under high-power operation conditions, which can easily lead to local overheating and equipment derating shutdown, and ensures the continuous and stable operation of the main unit cabinet.

[0019] By using inclined air inlets, hot air is generated into two opposing high-speed airflows. Efficient vortex cooling is achieved through kinetic energy exchange and pressure difference. Cold air is sent into the cabinet through a spiral airflow formed by the hollow connecting plate and the rotating exhaust pipe, which prolongs the residence time of the cold air, enhances the heat exchange effect, achieves balanced heat dissipation in the internal partition of the main unit cabinet, avoids local hot spots, and significantly improves the operational reliability and service life of the core electrical components.

[0020] It adopts a push-button tool-free quick disassembly and assembly structure. Through the linkage of buttons, connecting columns, limit platforms, limit beads and return springs, it can quickly install and disassemble the positioning plate, fixing plate and eddy current cooling components without the need for threading or additional fasteners. This greatly improves the efficiency of equipment maintenance, repair and component replacement, and solves the defects of traditional connection methods such as cumbersome disassembly and assembly and inconvenient maintenance.

[0021] The eddy current cooling, airflow guidance, and quick assembly / disassembly functions are highly integrated into the top of the main unit cabinet. The positioning plate and fixing plate provide stable support while forming an airflow channel, realizing the integrated design of heat dissipation structure and installation structure. The structure is compact and has a high space utilization rate, which can adapt to the layout requirements of multi-pile centralized charging main unit cabinets and facilitate on-site installation and integrated deployment.

[0022] The eddy current cooling circuit has no complex electrical control components or easily damaged moving parts, and its overall operation is stable and reliable with a low failure rate. It can adapt to long-term use in complex outdoor environments. The continuously introduced low-temperature cold air can reduce the humidity inside the cabinet, inhibit condensation, reduce the corrosion of electrical components by moisture and dust, further improve the safety and stability of the main cabinet operation, and reduce the overall operation and maintenance costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram showing the overall positional relationship of the device in this invention; Figure 2 This is a cross-sectional view of the overall device in this invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 For the present invention Figure 2 Enlarged view of the structure at point B in the middle; Figure 5 This is a schematic diagram showing the positional relationship between the heat dissipation pipe, the inclined air inlet, and the wind choke in this invention; Figure 6 This is a schematic diagram showing the positional relationship between the positioning plate, the hollow connecting plate, and the limiting tube in this invention; Figure 7 This is a schematic diagram showing the positional relationship between the limiting tube, the button, and the reset spring in this invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure at point C; Figure 9 This is a schematic diagram showing the positional relationship of the limiting tube, connecting column, limiting platform, and limiting bead in this invention.

[0024] Reference numerals: 11. Main unit cabinet housing; 12. Cooling fan; 131. Positioning plate; 132. Fixing plate; 14. Air concentrator; 15. Positioning ring assembly; 16. Heat dissipation pipe; 17. Inclined air inlet; 18. Windproof plug; 19. Hollow connecting plate; 20. Rotary exhaust pipe; 21. Limiting tube; 22. Connecting column; 23. Limiting platform; 24. Button; 25. Return spring; 26. Limiting bead; 27. Limiting groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0026] In the description of this invention, the terms “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments. Example

[0028] like Figures 1 to 9 As shown, a new energy vehicle charging main unit cabinet provided in an embodiment of the present invention includes a main unit cabinet housing 11 and a cooling fan 12. The cooling fan 12 is installed on the top of the inner cavity of the main unit cabinet housing 11 and is used to draw and guide hot air inside the cabinet.

[0029] A positioning plate 131 is provided on the top of the main unit cabinet housing 11, and a fixing plate 132 is snapped onto the top of the positioning plate 131. The main unit cabinet housing 11, the positioning plate 131, and the fixing plate 132 are together provided with an air concentrator 14. The air concentrator 14 is arranged in an annular flow channel to concentrate the hot air drawn by the cooling fan 12 and guide it to the area of ​​the heat dissipation pipe 16, thereby improving the eddy current heat exchange efficiency.

[0030] The positioning plate 131 houses a cooling tube 16, which has a vortex tube structure. A positioning ring assembly 15 is fitted onto the outer wall of the cooling tube 16 and is fixedly connected to the inside of the fixing plate 132. The positioning ring assembly 15 is used to coaxially position the cooling tube 16, ensuring that the hot air swirls uniformly along the outer wall of the cooling tube 16. Several inclined air inlets 17 are evenly spaced and arranged in a ring shape in the middle of the cooling tube 16. These inclined air inlets 17 are tangentially oriented, causing the airflow entering the cooling tube 16 to form a stable vortex, which then separates into hot and cold airflows.

[0031] One end of the heat-cooling pipe 16 is connected to the hollow connecting plate 19. A baffle 18 is attached to the end of the heat-cooling pipe 16 away from the hollow connecting plate 19. The baffle 18 directs the hot airflow after vortex separation to ensure that the cold airflow enters the hollow connecting plate 19 in one direction. The hollow connecting plate 19 is fixedly connected to the outer wall of the main unit cabinet housing 11. The interior of the hollow connecting plate 19 is a guide cavity used to evenly distribute the cold air to each rotating exhaust pipe 20. Several rotating exhaust pipes 20 are rotatably connected to the inner wall of the main unit cabinet housing 11. Each rotating exhaust pipe 20 is connected to the hollow connecting plate 19, and each rotating exhaust pipe 20 is arranged linearly and equidistantly. The air outlet of the rotating exhaust pipe 20 is inclined, causing the ejected cold air to form a spiral airflow, achieving uniform heat dissipation within the cabinet.

[0032] The top of the positioning plate 131 is symmetrically fixedly connected to limiting tubes 21. Connecting posts 22 are slidably connected inside each limiting tube 21. A limiting platform 23 is fixedly connected to the bottom of each connecting post 22, and a button 24 is fixedly connected to the top of the connecting post 22. The button 24 is slidably connected to the top of the inner cavity of the limiting tube 21. A return spring 25 is sleeved on the outer wall of the connecting post 22. One end of the return spring 25 is fixedly connected to the button 24, and the end of the return spring 25 away from the button 24 is fixedly connected to the inner wall of the limiting tube 21. The return spring 25 is used to achieve automatic reset of the button 24 and the connecting post 22.

[0033] Limiting beads 26 are provided between the connecting column 22 and the limiting platform 23. Two limiting beads 26 are slidably connected inside the limiting tube 21. The inner wall of the limiting tube 21 has through holes for the expansion and contraction of the limiting beads 26. The top of the hollow connecting plate 19 has symmetrically provided limiting grooves 27. The limiting tube 21 is slidably connected inside the limiting grooves 27. The limiting beads 26 can extend out of the outer wall of the limiting tube 21 and engage with the limiting grooves 27 to achieve quick assembly and disassembly positioning of the positioning plate 131 and the hollow connecting plate 19.

[0034] In this embodiment, the rotating exhaust pipe 20 can passively rotate around its own axis, further increasing the air supply coverage when the spiral airflow is ejected, making the temperature distribution inside the main unit cabinet housing 11 more uniform; the limiting bead 26 adopts a steel ball structure, which, together with the inclined surface of the limiting platform 23, achieves smooth extension and retraction, ensuring a smooth and reliable quick disassembly and assembly process; the air concentrator 14, the positioning ring group 15, and the heat cooling pipe 16 are coaxially arranged, making the hot air vortex more stable and further improving the vortex cooling effect. Example

[0035] A method for operating a new energy vehicle charging main unit cabinet includes the following steps: S1 The cooling fan 12 draws the hot air generated inside the main unit cabinet 11 upwards and guides it through the air concentrator 14 to form a directional swirling airflow field. S2 Swirling hot air enters the cooling pipe 16 tangentially through the inclined air inlet 17, forming two opposing high-speed airflows inside the pipe. Through kinetic energy exchange and pressure difference, heat separation is achieved, converting the hot air into low-temperature cold air. The hot air enters the inclined air inlet 17 tangentially along the outer wall of the cooling pipe 16, forming an inner and outer double-layered opposing swirling airflow inside the pipe. Through kinetic energy exchange, heat separation is achieved. The cooled cold air enters the hollow connecting plate 19 unidirectionally, and the heat is discharged to the outside through the wind baffle 18. S3 Low-temperature cold air enters the hollow connecting plate 19 along the heat dissipation pipe 16, and the hollow connecting plate 19 distributes the cold air to each rotating exhaust pipe 20; S4 The rotating exhaust pipe 20 delivers cold air into the main unit cabinet housing 11 in a spiral jet form, so that the cold air evenly covers each heat-generating area and achieves balanced and rapid cooling inside the cabinet. S5 By pressing button 24 to control the extension and retraction of the limiting bead 26, tool-free quick installation and disassembly of the positioning plate 131, the fixing plate 132 and the hollow connecting plate 19 can be achieved. Pressing button 24 causes the connecting column 22 and the limiting platform 23 to move down, so that the limiting bead 26 retracts into the limiting tube 21 to release the jamming. After releasing button 24, the reset spring 25 pushes the connecting column 22 to reset, and the limiting platform 23 squeezes the limiting bead 26 to extend outward and jam into the limiting groove 27, so as to achieve automatic locking and positioning.

[0036] Based on the above embodiments, the following is the complete working process and working principle of the above embodiments: Cooling and heat dissipation steps: When the main unit cabinet for car charging is operating at high power continuously, the internal power modules and control modules generate a large amount of heat. Relying solely on conventional cooling fans 12 is insufficient for efficient heat dissipation, which can easily lead to localized overheating, equipment derating, or even shutdown failures. To address this, this device employs a composite heat dissipation method that combines the eddy tube effect with forced airflow, achieving efficient cooling of the interior of the main unit cabinet housing 11 without the need for additional electric cooling components.

[0037] During operation of the main unit cabinet 11, the cooling fan 12 continuously draws in the high-temperature air generated inside the cabinet. The hot air is guided and constrained by the air concentrator 14 and is concentrated into the annular channel between the fixing plate 132 and the positioning ring group 15, where it flows at high speed in a spiral motion along the outer wall of the cooling pipe 16. The high-speed swirling hot air enters the cooling pipe 16 tangentially through the inclined air inlets 17 distributed in an annular pattern in the middle of the cooling pipe 16, forming two opposing high-speed airflows inside the pipe. Under the action of pressure difference and kinetic energy exchange, the two airflows undergo intense energy transfer, achieving vortex tube effect cooling. One airflow cools down to form a low-temperature cold air, while the other airflow carries heat and is discharged from the air choke 18. The cooled air flows into the hollow connecting plate 19 along the cooling pipe 16, and is then evenly distributed to each rotating exhaust pipe 20 through the hollow connecting plate 19. The air outlet of the rotating exhaust pipe 20 is set at an angle, and when the cold air is sprayed out, it forms a spiral airflow that can evenly cover the heat-generating components inside the main unit cabinet shell 11, achieving zoned and directional cooling, greatly improving heat dissipation efficiency. Moreover, the entire cooling process does not require additional electric cooling equipment and does not increase energy consumption, thus solving the problem of insufficient heat dissipation capacity of ordinary cooling fans.

[0038] By adopting a composite heat dissipation structure that combines vortex tube effect with forced air supply, the heat dissipation capacity of the main unit cabinet for car charging is improved without adding additional electrical cooling equipment or increasing additional energy consumption. This solves the problems of insufficient heat dissipation efficiency of conventional cooling fans under high-power operation conditions, which can easily lead to local overheating and equipment derating shutdown, and ensures the continuous and stable operation of the main unit cabinet.

[0039] Spiral air supply and uniform cooling steps: The cooled air, after being cooled by the heat pipe 16, is delivered into the main unit cabinet housing 11 in a spiral airflow manner through the cooperation of the hollow connecting plate 19 and the rotary exhaust pipe 20. The spiral airflow mode can prolong the residence time of the cool air in the cabinet, improve the heat exchange efficiency with the heat-generating components, and at the same time, the linearly and equally spaced rotary exhaust pipes 20 can evenly distribute the cool air to different areas inside the cabinet, avoid the formation of local hot spots, achieve overall balanced cooling inside the main unit cabinet housing 11, effectively ensure that key components such as power modules and control modules operate stably at suitable temperatures, and improve the reliability and service life of the equipment.

[0040] By tilting the air inlet 17, hot air is formed into two opposing high-speed airflows. Efficient vortex cooling is achieved by using kinetic energy exchange and pressure difference. The cold air is sent into the cabinet through the hollow connecting plate 19 and the rotating exhaust pipe 20 in a spiral airflow, which prolongs the residence time of the cold air, enhances the heat exchange effect, and achieves balanced heat dissipation in the internal partition of the main unit cabinet shell 11. This avoids local hot spots and significantly improves the operational reliability and service life of the core electrical components.

[0041] Quick disassembly / assembly steps: The overall assembly of positioning plate 131, fixing plate 132, and cooling pipe 16 adopts a press-type quick-release structure. During installation, the limiting tube 21 is aligned with the limiting groove 27 and inserted. Pressing button 24 causes the connecting column 22 and limiting platform 23 to move downward, compressing the return spring 25. When the limiting platform 23 descends, the limiting bead 26 retracts into the gap between the connecting column 22 and the limiting platform 23, allowing the limiting tube 21 to slide smoothly into the limiting groove 27. After the limiting tube 21 is in place, release button 24. The return spring 25 pushes the connecting column 22 to return to its original position, and the limiting platform 23 moves upward. The squeezed part of the limiting bead 26 extends out of the outer wall of the limiting tube 21 and is engaged in the limiting groove 27, achieving quick fixation of the assembly. During disassembly, simply press button 24 to lower the limiting platform 23. The limiting bead 26 loses its squeezing effect and contracts into the gap under gravity, releasing its resistance to the limiting groove 27. The entire component can then be pulled out directly without the need for tools. The disassembly and assembly process is simple and efficient, improving the convenience of equipment maintenance and repair. It solves the problems of cumbersome disassembly and assembly of traditional threaded connections and inconvenient disassembly of fixed connections.

[0042] The device adopts a push-button tool-free quick-assembly and disassembly structure. Through the linkage of button 24, connecting column 22, limit platform 23, limit bead 26 and return spring 25, the positioning plate 131, fixing plate 132 and eddy current cooling component can be quickly installed and disassembled without the need for threaded screws or additional fasteners. This greatly improves the efficiency of equipment maintenance, repair and component replacement, and solves the defects of traditional connection methods such as cumbersome disassembly and assembly and inconvenient maintenance.

[0043] Advantages of multi-component integration and compact structure: This device integrates the eddy current cooling structure and the quick-assembly structure on the top of the main unit cabinet shell 11. The combination design of the positioning plate 131 and the fixing plate 132 not only provides a stable installation carrier for the heat dissipation pipe 16 and the positioning ring group 15, but also forms a guide channel for the air concentrator 14. This realizes the integrated design of the heat dissipation structure and the installation structure, without occupying additional internal space of the main unit cabinet, maintaining the compactness of the overall structure of the main unit cabinet, adapting to the spatial layout requirements of multi-pile centralized charging main unit cabinets, and facilitating on-site installation and integrated deployment.

[0044] The functions of eddy current cooling, airflow concentration and quick disassembly are highly integrated into the top of the main unit cabinet shell 11. The positioning plate 131 and the fixing plate 132 provide stable support while forming an airflow channel, realizing the integrated design of heat dissipation structure and installation structure. The structure is compact and has a high space utilization rate, which can adapt to the layout requirements of multi-pile centralized charging main unit cabinets and facilitate on-site installation and integrated deployment.

[0045] Safety protection effect: The eddy current cooling process does not rely on vulnerable electrical control components and has no complex refrigeration circuit. It operates stably and reliably with a low failure rate, making it suitable for the complex operating environment of outdoor charging cabinets. At the same time, the continuously supplied dry and cold air can reduce the humidity inside the cabinet shell 11, reduce the risk of corrosion of electrical components by condensation and moisture, improve the safety and stability of equipment operation, extend the overall service life of the equipment, and reduce maintenance costs.

[0046] The eddy current cooling circuit has no complex electrical control components or easily damaged moving parts, and its overall operation is stable and reliable with a low failure rate. It can adapt to long-term use in complex outdoor environments. The continuously introduced low-temperature cold air can reduce the humidity inside the cabinet, inhibit condensation, reduce the corrosion of electrical components by moisture and dust, further improve the safety and stability of the main cabinet operation, and reduce the overall operation and maintenance costs.

[0047] While several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included within the scope and spirit of the invention, and are included within the scope of the invention as described in the claims and its equivalents.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new energy vehicle charging main unit cabinet, comprising a main unit cabinet housing (11) and a cooling fan (12), wherein the cooling fan (12) is installed on the top of the inner cavity of the main unit cabinet housing (11), characterized in that, The top of the main cabinet housing (11) is provided with a positioning plate (131), and a fixing plate (132) is snapped onto the top of the positioning plate (131). The main cabinet housing (11), the positioning plate (131), and the fixing plate (132) are all provided with an air-gathering slot (14). The positioning plate (131) is provided with a heat-reducing pipe (16) inside. The outer wall of the heat-reducing pipe (16) is fitted with a positioning ring group (15). The positioning ring group (15) is fixedly connected to the inside of the fixing plate (132). The outer wall of the main cabinet housing (11) is fixedly connected with a hollow connecting plate (19). Several rotating exhaust pipes (20) are rotatably connected to the inner wall of the main cabinet housing (11). Each of the rotating exhaust pipes (20) is connected to the hollow connecting plate (19), and each of the rotating exhaust pipes (20) is arranged linearly at equal intervals.

2. The new energy vehicle charging main unit cabinet according to claim 1, characterized in that, One end of the heat-reducing pipe (16) is connected to the hollow connecting plate (19), and the end of the heat-reducing pipe (16) away from the hollow connecting plate (19) is fitted with a wind-blocking plug (18).

3. The new energy vehicle charging main unit cabinet according to claim 1, characterized in that, The cooling pipe (16) has several inclined air inlets (17) arranged in a ring shape at equal intervals in the middle.

4. The new energy vehicle charging main unit cabinet according to claim 1, characterized in that, The top of the positioning plate (131) is symmetrically fixedly connected to the limiting tubes (21), and the interior of each of the two limiting tubes (21) is slidably connected to the connecting column (22). The bottom of the connecting column (22) is fixedly connected to the limiting platform (23), and the top of the connecting column (22) is fixedly connected to the button (24). The button (24) is slidably connected to the top of the inner cavity of the limiting tube (21).

5. A new energy vehicle charging main unit cabinet according to claim 4, characterized in that, A reset spring (25) is sleeved on the outer wall of the connecting column (22). One end of the reset spring (25) is fixedly connected to the button (24), and the other end of the reset spring (25) away from the button (24) is fixedly connected to the inner wall of the limiting tube (21).

6. A new energy vehicle charging main unit cabinet according to claim 4, characterized in that, A limiting bead (26) is provided between the connecting column (22) and the limiting platform (23), and the two limiting beads (26) are slidably connected inside the limiting tube (21).

7. A new energy vehicle charging main unit cabinet according to claim 4, characterized in that, The top of the hollow connecting plate (19) is symmetrically provided with limiting grooves (27), and the limiting tube (21) is slidably connected inside the limiting grooves (27).

8. A method for operating a charging main unit cabinet for new energy vehicles, characterized in that, The operating method of the new energy vehicle charging main unit cabinet is applicable to the new energy vehicle charging main unit cabinet according to any one of claims 1-7, and includes the following steps: S1 The hot air generated inside the main unit cabinet (11) is drawn upward by the cooling fan (12) and guided by the air concentrator (14) to form a directional swirling air field; S2 Swirling hot air enters the cooling pipe (16) tangentially through the inclined air inlet (17), forming two opposing high-speed airflows inside the pipe. Through kinetic energy exchange and pressure difference, heat separation is achieved, converting the hot air into low-temperature cold air. S3 Low-temperature cold air enters the hollow connecting plate (19) along the heat-reducing pipe (16), and the hollow connecting plate (19) distributes the cold air to each rotating exhaust pipe (20). S4 The rotating exhaust pipe (20) delivers cold air into the main unit cabinet housing (11) in a spiral jet form, so that the cold air evenly covers each heat-generating area and achieves balanced and rapid cooling inside the cabinet. S5 By pressing the button (24) to control the extension and retraction of the limit bead (26), tool-free quick installation and disassembly between the positioning plate (131), the fixing plate (132) and the hollow connecting plate (19) can be achieved.

9. The working method of a new energy vehicle charging main unit cabinet according to claim 8, characterized in that, In the S2, the hot air enters the inclined air inlet (17) tangentially along the outer wall of the cooling pipe (16), forming a double-layered reverse swirling airflow inside the pipe. Heat separation is achieved through kinetic energy exchange, and the cooled air enters the hollow connecting plate (19) in one direction. The heat is discharged to the outside through the wind choke (18).

10. The working method of a new energy vehicle charging main unit cabinet according to claim 8, characterized in that, In S5, pressing the button (24) causes the connecting column (22) and the limiting platform (23) to move down, so that the limiting bead (26) retracts into the limiting tube (21) to release the jamming; after releasing the button (24), the reset spring (25) pushes the connecting column (22) to reset, and the limiting platform (23) squeezes the limiting bead (26) to extend outward and jam into the limiting groove (27) to achieve automatic locking and positioning.

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