High-protection heavy truck charging pile
By adopting a design that separates sealed and unsealed areas in the charging pile and using an inlet/outlet damper assembly with a multi-layered composite protective structure, the problems of water ingress and sand blockage in the charging pile under harsh environments are solved, achieving efficient heat dissipation and protection, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING NENGRUI ELECTRIC POWER TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-24
AI Technical Summary
Existing charging stations are prone to water ingress and sandstorms clogging the air inlets and outlets in harsh environments such as mines, affecting heat dissipation and resulting in high maintenance costs.
The design incorporates a sealed and unsealed zone, combined with a multi-layered composite protective structure for the inlet/outlet air intake and exhaust duct components, including a double-layer louvered drainage design and graded dustproof components. It also optimizes the lateral symmetrical air duct and cooling fan to ensure efficient heat dissipation of the power module compartment.
It significantly improves the protection performance of charging piles, effectively blocking rainwater and sand from entering, ensuring high reliability and stable heat dissipation of key components, extending equipment life, and reducing maintenance costs.
Smart Images
Figure CN224545751U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of charging piles, specifically relating to a high-protection heavy-duty truck charging pile. Background Technology
[0002] As the application of new energy vehicles becomes more widespread, they are not only used in cities, but also in some harsh mining areas to replace the original oil vehicles for transportation. As a result, there are higher requirements for the protection of charging piles. Due to the harsh climate, sandstorms and rain in mining areas, which are strong and frequent, ordinary charging piles are prone to problems such as water ingress and sandstorms blocking the air inlet and outlet, affecting heat dissipation. Moreover, due to the remoteness of the area, the maintenance cost is significantly higher than that in cities. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this utility model provides a high-protection heavy-duty truck charging pile, which achieves highly reliable protection and stable heat dissipation of key internal components of the charging pile in complex outdoor environments.
[0004] The technical solution provided by this utility model is as follows:
[0005] This utility model provides a high-protection heavy-duty truck charging pile, including a cabinet and a sealed area for accommodating component groups and a non-sealed area for accommodating power module compartments distributed on the front and rear sides of the cabinet. The sealed area has a sealed front door assembly corresponding to the front of the cabinet, and the non-sealed area has an exhaust door assembly and an air inlet door assembly symmetrically arranged on the left and right sides of the cabinet. A cooling fan is provided on the side of the exhaust door assembly. Both door assemblies are multi-layer composite protective structures, including a door panel with an air outlet and a drainage structure covering the air outlet, a dustproof component one and a dustproof component two. The drainage structure includes an outer louver with a water storage fold and a flow guiding fold arranged longitudinally on the outer side of the door panel and an inner louver with a water-blocking fold on the inner side of the door panel. The particle size of the dustproof component two and dustproof component one, which are respectively located on the inner and outer sides of the door panel and isolated by dustproof component one, is larger than that of dustproof component two.
[0006] Furthermore, the outer louver includes a first anti-surge right-angle fold and a second anti-spread right-angle fold arranged vertically and facing each other. The second anti-spread right-angle fold includes a horizontally arranged drainage fold and a vertically arranged water storage fold. The drainage fold has a plurality of drainage holes. The vertical edges of the water storage fold and the first anti-surge right-angle fold are both located on one side of the door panel. A flow guide fold is provided between the water storage fold and the first anti-surge right-angle fold. The angle between the flow guide fold and the water storage fold is 120° and the angle opening is downward.
[0007] Furthermore, the inner louver includes a downward-facing L-shaped fold and a water-blocking fold located above the L-shaped fold and bent outward at an angle of 120°, with the vertical edge of the L-shaped fold positioned on the side of the door panel.
[0008] Furthermore, the dustproof component includes an outer dustproof net and a windshield. The outer dustproof net is located on the side of the outer louvers away from the door panel, and the windshield is welded to the door panel and covers the outer dustproof net and the outer louvers.
[0009] Furthermore, the second dustproof component includes an inner dustproof mesh, a filter cotton, and an inner welded frame. The inner dustproof mesh is located on the side of the inner louver closest to the door panel, and the filter cotton is located on the side of the inner louver away from the door panel and is fixed by an inner welded frame welded to the door panel. A cover plate is detachably installed on the end of the inner welded frame away from the door panel.
[0010] Furthermore, the outer dustproof mesh has a mesh structure of 8 mesh or more, while the inner dustproof mesh has a mesh structure of less than 8 mesh.
[0011] Furthermore, a square-shaped reinforcing rib is provided below the inner welding frame.
[0012] Furthermore, the front door assembly is a flat plate structure without ventilation holes and has a sealing strip at the joint with the cabinet.
[0013] Beneficial effects
[0014] The high-protection heavy-duty truck charging pile provided by this utility model significantly improves the overall protection performance through the physical isolation between the sealed and unsealed areas, combined with the multi-layer composite protective structure of the inlet / outlet air door assembly. Its unique drainage structure (inner and outer louvered edge design) can effectively guide and block rainwater intrusion, and the graded dustproof components (internal and external particle size isolation) greatly improve the dustproof effect. At the same time, the optimized lateral symmetrical air duct and cooling fan design ensure efficient heat dissipation of the power module compartment. Ultimately, it achieves high reliability protection and stable heat dissipation of key components inside the charging pile in complex outdoor environments, extending the equipment life.
[0015] This utility model, through rational internal planning of the cabinet, isolates the power module compartment, which requires ventilation and heat dissipation. Other components that do not require heat dissipation, i.e., component groups, are isolated and openly placed at the front of the cabinet, in a completely sealed space to prevent short circuits caused by wind, sand, and water. The power module compartment is located in the air intake and exhaust area of the cabinet, and the air intake and exhaust vents adopt a double-row louvered drainage design, achieving a waterproof rating of IP55. Dust protection employs a double dustproof mesh plus dustproof cotton design; the outer layer is a dustproof mesh with larger pores, and the middle layer is a dustproof mesh with smaller pores. Due to the harsh environment of mining areas, wind and sand are common... For larger dust particles, small-pore dust filters are often easily clogged, affecting heat dissipation. Replacing them with larger-pore dust filters effectively filters small dust particles while protecting against larger ones. When large dust particles clog the outer dust filter, they can be easily removed by tapping with a hard object, extending maintenance intervals. When cleaning and maintenance are needed after a period of time, there is no need to stop the machine and open the cabinet door to clean the dust, as the cabinet door is waterproof to IP55, and the air inlet and outlet can be directly rinsed with water, which is simple and convenient. The dustproof cotton can be replaced after the machine has been used for a long time, thereby reducing maintenance costs. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the internal layout of the charging station cabinet of this utility model;
[0017] Figure 2 This is a structural schematic diagram of the air inlet door assembly of this utility model;
[0018] Figure 3 This is an exploded view of the air inlet door assembly of this utility model;
[0019] Figure 4 This is a schematic diagram of the outer louvers of this utility model;
[0020] Figure 5 This is a schematic diagram of the inner louvers of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 010, air inlet door assembly; 020, air outlet door assembly; 030, front door assembly; 040, power module compartment; 050, cooling fan; 060, component group; 0101, wind deflector; 0102, outer dustproof mesh; 0103, outer louvers; 0104, door panel; 0105, inner dustproof mesh; 0106, inner louvers; 0107, filter cotton; 0108, inner welding frame; 0109, cover plate. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Example 1
[0026] like Figure 1 As shown, this utility model embodiment provides a high-protection heavy-duty truck charging pile, including a cabinet and a sealed area for accommodating component groups 060 and a non-sealed area for accommodating power module compartments 040 distributed on the front and rear sides of the cabinet. The sealed area is provided with a sealed front door assembly 030 corresponding to the front of the cabinet. The non-sealed area is provided with exhaust door assemblies 020 and air inlet door assemblies 010 symmetrically on the left and right sides of the cabinet. A cooling fan 050 is provided on the side of the exhaust door assembly 020. Both door assemblies are multi-layer composite protective structures, including a door panel 0104 with an air outlet and a drainage structure covering the air outlet, a dustproof component one and a dustproof component two. The drainage structure includes an outer louver 0103 with a water storage fold and a flow guiding fold arranged longitudinally on the outer side of the door panel 0104 and an inner louver 0106 with a water-blocking fold on the inner side of the door panel 0104. The particle size of the dustproof component two and dustproof component one, which are respectively provided on the inner and outer sides of the door panel 0104 and isolated by dustproof component one, is larger than that of dustproof component two.
[0027] The high-protection heavy-duty truck charging pile provided by this utility model significantly improves the overall protection performance through the physical isolation between the sealed and unsealed areas, combined with the multi-layer composite protective structure of the inlet / outlet air door assembly. Its unique drainage structure (inner and outer louvered edge design) can effectively guide and block rainwater intrusion, and the graded dustproof components (internal and external particle size isolation) greatly improve the dustproof effect. At the same time, the optimized lateral symmetrical air duct and cooling fan design ensure efficient heat dissipation of the power module compartment. Ultimately, it achieves high reliability protection and stable heat dissipation of key components inside the charging pile in complex outdoor environments, extending the equipment life.
[0028] Example 2
[0029] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a high-protection heavy-duty truck charging pile, including a cabinet. The cabinet's internal space is divided into a sealed area and an unsealed area through reasonable planning. The area where component group 060 is located is the sealed area. The front door assembly 030 has no ventilation holes, and a sealing strip is provided at the junction of the cabinet with the front door assembly 030, which can effectively isolate dust and water to achieve the purpose of sealing and protection. Power module compartment 040 The area is an unsealed area, with air inlet assembly 010 and air outlet assembly 020 symmetrically arranged on the left and right sides of the corresponding cabinet. One side of the air outlet assembly 020 is equipped with a cooling fan 050, which exhausts air outward to achieve heat dissipation. Both the air inlet assembly 010 and the air outlet assembly 020 are multi-layer composite protective structures, including a door panel 0104 with an air outlet and a drainage structure covering the air outlet, dustproof component one and dustproof component two. The drainage structure includes an outer louver 0103 with water storage and flow guiding folds arranged longitudinally on the outside of the door panel 0104 and an inner louver 0106 with water blocking folds arranged on the inside of the door panel 0104. The particle size of the dustproof component two and dustproof component one is larger than that of the particles isolated by dustproof component one, which are respectively located on the inside and outside of the door panel 0104.
[0030] In this embodiment, as Figure 4 As shown, the outer louver 0103 includes a first anti-surge right-angle fold and a second anti-spread right-angle fold arranged vertically and facing each other. The second anti-spread right-angle fold includes a horizontally arranged drainage fold and a vertically arranged water storage fold. The drainage fold has several drainage holes. The vertical edges of the water storage fold and the first anti-surge right-angle fold are both located on one side of the door panel 0104. A flow guide fold is provided between the water storage fold and the first anti-surge right-angle fold. The angle between the flow guide fold and the water storage fold is 120° and the angle opening is downward.
[0031] In this embodiment, as Figure 5As shown, the inner louver 0106 includes a downward-facing L-shaped fold and a water-blocking fold located above the L-shaped fold and bent outward at an angle of 120°. The vertical edge of the L-shaped fold is located on the side of the door panel 0104.
[0032] In this embodiment, the dustproof component includes an outer dustproof net 0102 and a windshield 0101. The outer dustproof net 0102 is disposed on the side of the outer louver 0103 away from the door panel 0104. The windshield 0101 is welded to the door panel 0104 and covers the outer dustproof net 0102 and the outer louver 0103.
[0033] In this embodiment, the second dustproof component includes an inner dustproof mesh 0105, a filter cotton 0107, and an inner welded frame 0108. The inner dustproof mesh 0105 is located on the side of the inner louver 0106 near the door panel 0104. The filter cotton 0107 is located on the side of the inner louver 0106 away from the door panel 0104 and is fixed by an inner welded frame welded to the door panel 0104. A cover plate 0109 is detachably installed on the end of the inner welded frame away from the door panel 0104.
[0034] In this embodiment, the outer dustproof net 0102 has a mesh structure of 8 meshes or more, and the inner dustproof net 0105 has a mesh structure of less than 8 meshes.
[0035] In this embodiment, a square-shaped reinforcing rib is provided below the inner welding frame 0108.
[0036] Specifically, such as Figure 2 and Figure 3As shown, both the air inlet damper assembly 010 and the air outlet damper assembly 020 adopt a double-row louver drainage design. The following details the design using the air inlet damper assembly 010 as an example. The air inlet damper assembly 010 has louvers on both the inner and outer sides of the door panel 0104. A wind deflector 0101 is welded to the outer side of the door panel 0104. The wind deflector 0101 is fitted with an outer dustproof mesh 0102 and outer louvers 0103. An inner welding frame 0108 is welded to the inner side of the door panel 0104. The inner welding frame 0108 encloses the dustproof mesh 0105 and inner louvers 0106 within its internal space. A filter cotton 0107 is fixed inside the inner welding frame 0108 and sealed by a cover plate 0109. When water enters the air inlet assembly, it first enters the outer louvers 0103. Due to the bending angle design of the outer louvers 0103, the side facing the air outlet is 90°. The 0° second anti-spreading right-angle folded edge has a water-storing folded edge that prevents water from spreading directly upwards when only the guide folded edge is present, instead preventing it from flowing out to both sides. Above the second anti-spreading right-angle folded edge is a 120° large-angle guide folded edge that can divert splashing water downwards. The drainage folded edge of the second anti-spreading right-angle folded edge has drainage holes that can effectively drain water and remove large particles of dust and foreign objects. The inner louver 0106 can effectively assist in drainage. Above the inner louver 0106 is a 120° bending angle water-blocking folded edge with a hook design, which can effectively block outflow when a large amount of water is immersed, allowing the water that has entered the inner layer to flow back and be discharged from the outer layer, preventing water from entering the cabinet. Through experiments, the double-row louvers can achieve an IP55 waterproof effect in rain tests, which can withstand low-pressure water spray from any angle and still ensure that the equipment will not be infiltrated by water.
[0037] Regarding the dust prevention of the air inlet damper assembly 010, a double-layer dustproof mesh plus filter cotton 0107 design is adopted. The outer dustproof mesh 0102 uses a dustproof mesh with larger pores of 8 mesh or more. Its purpose is to prevent large particles of dust or foreign objects from entering and blocking the air duct, thus affecting heat dissipation. Cleaning the outer dustproof mesh 0102 does not require professional maintenance personnel. Simply tap the door panel 0104 with a hard object to make it fall off, or directly wash the door panel 0104 with water. No downtime maintenance or opening the door for cleaning is required. The inner dustproof mesh 0105 uses a dustproof mesh with smaller pores of less than 8 mesh. This dustproof mesh prevents smaller dust particles from entering, extends the service life of the filter cotton 0107, and reduces maintenance costs. Cleaning the inner dustproof mesh 0105 is also very simple; it can be directly rinsed with water without stopping the machine.
[0038] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.
Claims
1. A high-protection heavy-duty truck charging pile, characterized in that, The system includes a cabinet and a sealed area for accommodating component groups and a non-sealed area for accommodating power module compartments located on the front and back sides of the cabinet. The sealed area has a sealed front door assembly corresponding to the front of the cabinet. The non-sealed area has exhaust door assemblies and air inlet door assemblies symmetrically located on the left and right sides of the cabinet. The exhaust door assembly has a cooling fan on its side. Both door assemblies are multi-layer composite protective structures, including a door panel with an air outlet and a drainage structure covering the air outlet, dustproof component one and dustproof component two. The drainage structure includes an outer louver with water storage and flow guiding folds arranged longitudinally on the outside of the door panel and an inner louver with water blocking folds on the inside of the door panel. Dustproof component two and dustproof component one are respectively located on the inside and outside of the door panel, and the particle size of the particles isolated by dustproof component one is larger than that of dustproof component two.
2. The high-protection heavy-duty truck charging pile according to claim 1, characterized in that, The outer louver includes a first anti-surge right-angle fold and a second anti-spread right-angle fold arranged vertically and facing each other. The second anti-spread right-angle fold includes a horizontally arranged drainage fold and a vertically arranged water storage fold. The drainage fold has several drainage holes. The vertical edges of the water storage fold and the first anti-surge right-angle fold are both located on one side of the door panel. A flow guide fold is provided between the water storage fold and the first anti-surge right-angle fold. The angle between the flow guide fold and the water storage fold is 120° and the angle opening is downward.
3. The high-protection heavy-duty truck charging pile according to claim 1, characterized in that, The inner louver includes a downward-facing L-shaped fold and a water-blocking fold located above the L-shaped fold and bent outward at an angle of 120°. The vertical edge of the L-shaped fold is located on the side of the door panel.
4. The high-protection heavy-duty truck charging pile according to claim 1, characterized in that, The dustproof component includes an outer dustproof net and a windshield. The outer dustproof net is located on the side of the outer louvers away from the door panel. The windshield is welded to the door panel and covers the outer dustproof net and the outer louvers.
5. The high-protection heavy-duty truck charging pile according to claim 4, characterized in that, The second dustproof component includes an inner dustproof mesh, a filter cotton, and an inner welded frame. The inner dustproof mesh is located on the side of the inner louver closest to the door panel, and the filter cotton is located on the side of the inner louver away from the door panel and is fixed by an inner welded frame welded to the door panel. A cover plate is detachably installed on the end of the inner welded frame away from the door panel.
6. The high-protection heavy-duty truck charging pile according to claim 5, characterized in that, The outer dustproof mesh has a mesh structure of 8 mesh or more, while the inner dustproof mesh has a mesh structure of less than 8 mesh.
7. The high-protection heavy-duty truck charging pile according to claim 5, characterized in that, The inner weld frame is provided with a square-shaped reinforcing rib below it.
8. The high-protection heavy-duty truck charging pile according to claim 1, characterized in that, The front door assembly is a flat plate structure without ventilation holes and has a sealing strip at the joint with the cabinet.