A high-power V2G intelligent charging pile with a streamlined labyrinth air duct

Abstract

The utility model relates to related technical field of intelligent charging pile, especially with stream -lined labyrinth type air duct's high -power V2G intelligent charging pile, including charging pile cabinet, air inlet door, air outlet door and charging pile main part. Air inlet door is equipped with three groups of air duct baffle of Z type staggered arrangement, constitutes the labyrinth type air duct, and the inner wall of baffle adopts sharkskin scale structure, and the bending portion is equipped with 30-60 degree angle deflector. The air inlet and the air inlet are provided with magnetic type detachable dustproof net, and the door body cavity bottom is equipped with water accumulation discharge port and flow guide groove. The design greatly reduces the airflow pressure loss, improves the air volume and the heat exchange efficiency, realizes dustproof and waterproof through inertia separation, has the self -cleaning function, reduces the maintenance frequency. The product effectively solves the problems of insufficient heat dissipation, easy rust and high maintenance cost of high -power V2G charging pile, and guarantees the stable operation of equipment outdoors.

Description

Technical Field

[0001] This utility model relates to the technical field of smart charging piles, and in particular to a high-power V2G smart charging pile with a streamlined labyrinthine air duct. Background Technology

[0002] With the rapid development of the new energy vehicle industry, charging piles are upgrading towards higher power and vehicle-to-grid (V2G) two-way interaction, significantly increasing their power density and raising the heat generation per unit volume by 30%-50% compared to traditional charging piles. As the core structure for heat dissipation and protection of charging piles, the air duct directly determines the equipment's operating efficiency, stability, and lifespan, and has become a key factor restricting the widespread application of high-power V2G charging piles.

[0003] While current charging pile air duct designs have achieved basic heat dissipation, there are still many shortcomings that need to be addressed when adapting to high power density scenarios and harsh outdoor environments: Traditional air ducts often use a simple "Z"-shaped right-angle bend structure, with pressure loss generally ranging from 150 to 200 Pa. This means that under the same fan power, the air volume can only meet the basic heat dissipation requirements. When running at high power, the equipment is prone to overheating and load reduction, or even shutdown protection.

[0004] Traditional air ducts rely on a single dustproof net to intercept dust, which is prone to clogging, requires frequent maintenance, and is costly. At the same time, the right-angle air duct design can easily lead to rainwater residue, which cannot be discharged quickly and can cause internal components to rust over time, affecting the electrical safety of V2G bidirectional interaction. Utility Model Content

[0005] The purpose of this invention is to provide a high-power V2G smart charging pile with a streamlined labyrinthine air duct to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-power V2G smart charging pile with a streamlined labyrinthine air duct, comprising a charging pile cabinet and a charging pile body. The front of the charging pile cabinet is hinged with a panel door, and the charging pile body is installed inside the panel door. An air inlet door is installed on the left side of the charging pile cabinet via a hinge, and an exhaust door is installed on the right side of the charging pile cabinet via a hinge. An exhaust louver is installed on the upper part of the exhaust door. The air inlet door includes a front door panel and a door cavity on the back of the door panel, and an air inlet is provided at the lower part of the door panel. An air duct is provided above the door cavity, and an exhaust fan is installed behind the air duct via a bracket. Inside the door cavity, air duct partition 1, air duct partition 2, and air duct partition 3 are installed sequentially from bottom to top, and air duct partition 1, air duct partition 2, and air duct partition 3 form a Z-shaped staggered arrangement.

[0007] Furthermore, a groove is provided on the outer side of the door panel frame, and a sealing strip is fixed inside the groove. At the same time, a protective frame is fixed outside the door cavity inside the sealing strip, and support rollers are fixed on the inner sides of both the upper and lower ends of the door panel.

[0008] Furthermore, the first air duct partition is an L-shaped plate with a right angle, the second air duct partition is an L-shaped plate with the front end bent downwards, and the third air duct partition has the same structure as the second air duct partition. At the same time, the inner walls of the three partitions adopt a sharkskin-like shield scale structure.

[0009] Furthermore, a water outlet is provided at the bottom of the door cavity, and a guide groove is provided on the inner wall of the door cavity to guide the water outlet. The guide groove is seamlessly connected to the bottom edge of the air duct partition.

[0010] Furthermore, a detachable dustproof screen is installed on the inner side of the air inlet and the outer side of the air outlet. The dustproof screen is an electrostatic adsorption type filter, and the edge of the dustproof screen is detachably connected to the protective frame through a magnetic structure.

[0011] Furthermore, the inner side of the bend of the second and third air duct partitions is provided with several evenly distributed guide vanes, and the guide vanes form an angle of 30-60 degrees with the surface of the partition.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The streamlined labyrinthine air duct of this invention adopts a gradually narrowing and expanding streamlined channel and a large radius of curvature bend, which significantly reduces airflow resistance and achieves a larger air volume with the same fan power.

[0013] The entire labyrinthine air duct path includes at least several sharp turns to ensure effective inertial separation. Dust particles in the air, due to inertia, cannot keep up with the sharp turns of the airflow and collide with the baffles and are captured. Moisture passing through the labyrinthine air duct structure also directly impacts the labyrinth baffles due to inertia, and flows down the labyrinth baffles under the action of gravity. Moisture splashed into or remaining in the air duct is discharged through the water drain at the bottom by gravity. The air duct inlet and outlet are also equipped with removable and easily replaceable dust filters.

[0014] Tiny guide vanes are designed at specific locations on the air duct labyrinth partition to actively generate controllable vortices near the wall of the air duct labyrinth partition. These vortices can disrupt the thermal boundary layer, enhance heat exchange efficiency, and at the same time help to pick up dust on the wall of the air duct labyrinth partition and carry it away with the main airflow, thus playing a certain self-cleaning role.

[0015] Microfabrication technology was used to create a sharkskin-like shield-like structure on the inner wall of the air duct labyrinth panel. This effectively reduced wall friction resistance while disrupting airflow at the bottom layer, thus inhibiting dust settling. Attached Figure Description

[0016] Figure 1A front perspective view of this utility model; Figure 2 A three-dimensional schematic diagram of the air inlet door angle of this utility model; Figure 3 A three-dimensional view of the back of this utility model; Figure 4 A schematic diagram of the internal structure of the air inlet door of this utility model; Figure 5 A schematic diagram of the door corner of this utility model.

[0017] In the diagram: 1. Charging pile cabinet; 2. Air inlet door; 21. Exhaust fan; 22. Air inlet; 23. Door cavity; 24. Air duct partition 1; 25. Air duct partition 2; 26. Air duct partition 3; 27. Air outlet; 28. Door panel; 281. Support roller; 282. Sealing strip; 29. ​​Protective frame; 3. Panel door; 4. Charging pile body; 5. Exhaust door; 51. Exhaust louver. Detailed Implementation

[0018] Please see Figure 1-5 This utility model provides a technical solution: a high-power V2G smart charging pile with a streamlined labyrinthine air duct, including a charging pile cabinet 1 and a charging pile body 4. A panel door 3 is hinged to the front of the charging pile cabinet 1, and the charging pile body 4 is installed inside the panel door 3. An air inlet door 2 is hinged to the left side of the charging pile cabinet 1, and an exhaust door 5 is hinged to the right side of the charging pile cabinet 1. Exhaust louvers 51 are installed on the upper part of the exhaust door 5, forming a left-right convection air duct. The louvers are made of one-piece aluminum alloy with a blade inclination angle of 45°, ensuring smooth exhaust. It can also block rainwater and foreign objects from entering; the air inlet door 2 includes a door panel 28 on the front and a door cavity 23 on the back of the door panel 28, and an air inlet 22 is provided at the bottom of the door panel 28. The door cavity 23 is a stamped hollow cavity. An air vent 27 is provided above the door cavity 23, and an air blower 21 is installed behind the air vent 27 by a bracket. Inside the door cavity 23, from bottom to top, air duct partition 1 24, air duct partition 25 and air duct partition 3 26 are installed in sequence, and the air duct partition 1 24, air duct partition 25 and air duct partition 3 26 form a Z-shaped staggered arrangement; forming a three-level labyrinth flow channel; The outer side of the door panel 28 has a groove, and the EPDM rubber sealing strip 282 is fixed in the groove by a stainless steel pressure strip. At the same time, a protective frame 29 is fixed to the outside of the door cavity 23 inside the sealing strip 282, and support rollers 281 are fixed to the inner sides of the upper and lower ends of the door panel 28 to effectively prevent the door from getting stuck.

[0019] Duct baffle 1 (24) is an L-shaped plate with a right angle; duct baffle 2 (25) is an L-shaped plate with the front end bent downwards at a 135° angle; duct baffle 3 (26) has the same structure as duct baffle 2 (25), but their bending directions are opposite, forming a continuous turning flow channel. Simultaneously, the inner walls of all three baffles employ a sharkskin-like shield-scale structure. This structure disrupts the airflow boundary layer, reduces wall friction resistance, and decreases the probability of dust adhesion to the wall surface.

[0020] A water drain outlet is provided at the bottom of the door cavity 23, and a guide groove is provided on the inner wall of the door cavity 23 to guide the water drain outlet. The guide groove is seamlessly connected to the bottom edge of the air duct partition 24. A backflow prevention rubber valve is installed on the outside of the drain outlet to prevent external insects and odors from flowing back in. Removable dust filters are installed on the inner side of the air inlet 22 and the outer side of the air outlet 27. The dust filters are electrostatic adsorption type filters, and their edges are detachably connected to the protective frame 29 via a magnetic structure. The magnetic structure allows for quick attachment to the frame, and disassembly and assembly require no tools. A single person can complete cleaning or replacement within 30 seconds, reducing maintenance costs.

[0021] Both the inner side of the bends in duct baffles 25 and 36 are provided with several evenly distributed guide vanes, which form an angle of 30-60 degrees with the baffle surface. At this angle, a stable and controllable vortex can be generated in the flow channel. On the one hand, this disrupts the thermal boundary layer, improving the heat exchange efficiency between the airflow and the baffle; on the other hand, the airflow disturbance generated by the vortex can pick up the dust adhering to the wall and discharge it with the main airflow, achieving self-cleaning of the air duct and extending the replacement cycle of the dust filter.

Claims

1. A high-power V2G smart charging pile with a streamlined labyrinthine air duct, comprising a charging pile cabinet (1) and a charging pile body (4), wherein a panel door (3) is hinged to the front of the charging pile cabinet (1), and the charging pile body (4) is installed inside the panel door (3); an air inlet door (2) is installed on the left side of the charging pile cabinet (1) via a hinge, and an exhaust door (5) is installed on the right side of the charging pile cabinet (1) via a hinge; and an exhaust louver (51) is installed on the upper part of the exhaust door (5), characterized in that: The air inlet door (2) includes a front door panel (28) and a door cavity (23) on the back of the door panel (28). An air inlet (22) is provided at the bottom of the door panel (28). An air duct (27) is provided above the door cavity (23). An air duct fan (21) is installed behind the air duct (27) by a bracket. Inside the door cavity (23), air duct partition 1 (24), air duct partition 2 (25) and air duct partition 3 (26) are installed sequentially from bottom to top. Air duct partition 1 (24), air duct partition 2 (25) and air duct partition 3 (26) form a Z-shaped staggered arrangement.

2. The high-power V2G smart charging pile with a streamlined labyrinthine air duct as described in claim 1, characterized in that: The door panel (28) has a groove on the outer side of the frame, and a sealing strip (282) is fixed inside the groove. At the same time, a protective frame (29) is fixed outside the door cavity (23) inside the sealing strip (282), and support rollers (281) are fixed on the inner sides of both the upper and lower ends of the door panel (28).

3. The high-power V2G smart charging pile with a streamlined labyrinthine air duct as described in claim 1, characterized in that: The first air duct partition (24) is an L-shaped plate with a right angle, the second air duct partition (25) is an L-shaped plate with the front end bent downwards, the third air duct partition (26) has the same structure as the second air duct partition (25), and the inner walls of the three partitions adopt the shield scale structure of shark skin.

4. The high-power V2G smart charging pile with a streamlined labyrinthine air duct as described in claim 1, characterized in that: The bottom of the door cavity (23) is provided with a water discharge outlet, and the inner wall of the door cavity (23) is provided with a guide groove for guiding the water discharge outlet. The guide groove is seamlessly connected to the bottom edge of the air duct partition (24).

5. The high-power V2G smart charging pile with a streamlined labyrinthine air duct as described in claim 1, characterized in that: The air inlet (22) is equipped with a detachable dustproof net on the inner side and the air outlet (27) on the outer side. The dustproof net is an electrostatic adsorption type filter. The edge of the dustproof net is detachably connected to the protective frame (29) through a magnetic structure.

6. The high-power V2G smart charging pile with a streamlined labyrinthine air duct as described in claim 5, characterized in that: The inner side of the bends of the second (25) and third (26) air duct partitions are provided with several evenly distributed guide vanes, and the guide vanes form an angle of 30-60 degrees with the surface of the partition.

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