Charging pile protection structure and charging pile thereof

By designing ventilation openings, filters, water tanks, and automatic drainage components on the charging piles, the heat dissipation and waterproofing issues of the charging piles in outdoor environments have been solved, ensuring the stability and safety of the equipment under harsh weather conditions, simplifying the maintenance process, and ensuring the reliability of the charging interface.

CN121133477APending Publication Date: 2025-12-16GUANGDONG HONGKEFA IND TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511626748.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Existing charging stations are poorly adapted to outdoor environments, and there is a conflict between heat dissipation and waterproofing. In particular, the heat dissipation holes are easily blocked, leading to overheating of the equipment or water accumulation that cannot be effectively drained.

Method used

A charging pile protection structure was designed, including a vent, a filter, a water tank, and an automatic drainage component. It utilizes rainwater for heat dissipation and automatic drainage, and combines mechanical structure to simplify maintenance process. Sealing components are used to ensure that the charging interface is waterproof and dustproof.

Benefits of technology

It improves the stability and safety of charging piles under severe weather conditions, simplifies the maintenance process, and ensures the long-term effective operation of the equipment and charging safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of charging piles, and discloses a charging pile protection structure and a charging pile thereof.The charging pile protection structure comprises a base, an electric box protection shell is fixedly connected to the top of the base, square box bodies are fixedly connected to the left side and the right side of the electric box protection shell correspondingly, and drainage cooling assemblies are arranged in the square box bodies; the left side and the right side of the exterior of the square box body are each provided with two installation assemblies, the top of the electric box protection shell is fixedly connected with a waterproof top plate, the drainage cooling assembly comprises a ventilation opening, and the exterior of the ventilation opening is fixedly connected to the interior of the square box body. Through the ventilation opening and the filter screen arranged on the square box body, impurities can be prevented from entering, clean rainwater can be actively collected into the water storage tank, the stored water body can effectively absorb heat generated in the operation process of the charging pile and evaporate the heat, and a passive cooling device without additional energy consumption is formed.
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Description

Technical Field

[0001] This invention relates to the field of charging pile technology, specifically to a charging pile protection structure and the charging pile thereof. Background Technology

[0002] With the booming development of the new energy vehicle industry, the number of charging piles, a key supporting facility, is increasing daily. Since most charging piles need to be deployed outdoors, they face severe challenges from complex and ever-changing natural conditions such as sun, rain, and sandstorms. Charging piles are mostly installed in open-air environments, and severe weather such as rain, snow, and strong winds can damage them. For example, rain and snow may enter the charging pile, causing electrical components to become damp and short-circuit, and strong winds may cause the charging pile to sway or even tip over. Charging pile protective structures with rain, snow, and wind protection functions can effectively protect the charging piles, allowing them to continue to operate normally under severe weather conditions.

[0003] Existing charging stations are typically designed to handle the immense heat generated during high-power charging, relying on heat sinks or fans for cooling. However, this design often introduces new challenges: ventilation openings inevitably become weak points for rainwater and debris intrusion. Although filtration devices are installed, these filters are easily clogged by fallen leaves, dust, and other contaminants, significantly reducing heat dissipation efficiency, triggering overheat protection mechanisms, or even causing damage. Furthermore, they severely impede drainage during rainy weather, preventing the effective removal of accumulated water. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a charging pile protection structure and a charging pile thereof, which solves the problems of poor adaptability of existing charging piles in complex outdoor environments and the common contradiction between heat dissipation and waterproofing.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a charging pile protection structure and the charging pile thereof, including a base, an electrical box protective shell fixedly connected to the top of the base, a square box fixedly connected to the left and right sides of the electrical box protective shell, a drainage and cooling component provided inside the square box, two mounting components installed on the left and right sides of the outside of the square box, and a waterproof top plate fixedly connected to the top of the electrical box protective shell. The drainage and cooling assembly includes a vent, the outside of which is fixedly connected to the inside of the square box. A filter screen is fixedly connected to the far side of each of the two vents. A water storage tank is fixedly connected to the inside of the square box. A flow limiting plate is fixedly connected to the bottom of the water storage tank. A drainage assembly is slidably connected to the inside of the square box.

[0006] Preferably, the drainage assembly includes a sliding plate, the outside of which is slidably connected to the inside of the square box, and the bottom of the sliding plate is fixedly connected to multiple telescopic springs.

[0007] Preferably, the installation assembly includes a fixed box, a sliding rod is slidably connected inside the fixed box, a rotating shaft is fixedly connected inside the sliding rod, a limit handle is rotatably connected to the outside of the rotating shaft, a square slide plate is fixedly connected to the side of the sliding rod away from the filter screen, and multiple return springs are fixedly connected to the side of the square slide plate away from the filter screen.

[0008] Preferably, one side of the water storage tank is fixedly connected to the inner wall of the square box, and the other side of the water storage tank is fixedly connected to the outside of the base.

[0009] Preferably, one side of the flow limiting plate is fixedly connected to the inside of the water storage tank, and the other side of the flow limiting plate is fixedly connected to the outside of the base.

[0010] Preferably, the bottom of the telescopic spring is fixedly connected to the bottom inner wall of the square box, the two sliding plates are slidably connected to the inside of the square box on opposite sides, and the two sliding plates are slidably connected to the left and right sides of the base on opposite sides.

[0011] Preferably, the outer side of the limiting handle contacts one side of the fixed box, and the outer side of the square sliding plate is slidably connected to the inner wall of the fixed box.

[0012] Preferably, one side of the filter screen is in contact with one side of the square slide plate, and the adjacent sides of the two filter screens are in contact with the distant sides of the two vents.

[0013] A charging station includes a charging cable, the left side of which is fixedly connected to the right side of the protective shell of the electrical box, and the other side of which is fixedly connected to a charging gun. A sealing component is fixedly connected to the outside of the charging gun.

[0014] Preferably, the sealing assembly includes an annular shell, with a sliding ring slidably connected inside the annular shell. Multiple tension springs are fixedly connected to the front side of the sliding ring 1, and a sliding ring 2 is fixedly connected to the rear side of the sliding ring 1. A sealing ring is fixedly connected to the rear side of the sliding ring 2.

[0015] This invention provides a charging pile protection structure and a charging pile thereof. It has the following beneficial effects: 1. This invention, through the ventilation openings and filters installed on the square housing, not only prevents debris from entering but also actively collects clean rainwater into a water storage tank. This stored water effectively absorbs and evaporates the heat generated by the charging pile during operation, forming a passive cooling device that requires no additional energy consumption. Furthermore, when there is excessive rainfall, the weight of the accumulated water presses against the sliding plate and the telescopic spring below, triggering automatic drainage. This mechanism based on physical weight sensing avoids the risk of clogging and failure of traditional drainage holes, greatly improving the stability and safety of the equipment in severe weather.

[0016] 2. This invention significantly simplifies the filter maintenance process, enabling quick disassembly and assembly without tools. Traditional filter replacement often requires tightening screws or opening clips, which is time-consuming and laborious. In this invention, the installation assembly uses an external limit handle to control an internal sliding rod and a square sliding plate. Maintenance personnel simply turn the handle, and the square sliding plate retracts under the action of a return spring, instantly releasing the pressure on the filter, allowing it to be easily removed for cleaning or replacement. This reduces maintenance difficulty and time costs, ensuring the long-term effective operation of the heat dissipation and drainage devices.

[0017] 3. The sealing assembly of the charging gun provides automated and reliable protection, effectively eliminating the possibility of interface damage due to human negligence. When the charging gun is inserted into the vehicle interface, this physical action itself will push the sliding ring one and sliding ring two to move backward, thereby driving the sealing ring to fit tightly against the connection interface, forming a tight waterproof and dustproof barrier. When the charging gun is removed after charging is finished, the tension spring will automatically pull the entire sliding structure back to its original position. This process is entirely mechanically linked, without the need for users to perform additional operations such as covering with a dust cap, fundamentally solving the problem of charging interface being exposed to moisture and corrosion, ensuring charging safety and the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the fixed box of the present invention; Figure 3 This is an enlarged view of point A in this invention; Figure 4 This is an enlarged view of point B in the present invention; Figure 5 This is a schematic diagram of the ventilation opening structure of the present invention; Figure 6 This is an enlarged view of point C in this invention; Figure 7 This is a schematic diagram of the charging gun structure of the present invention; Figure 8 This is an enlarged view of point D in this invention.

[0019] The components include: 1. Base; 2. Electrical box protective shell; 3. Square box; 4. Drainage and cooling components; 41. Ventilation opening; 42. Filter screen; 43. Water storage tank; 44. Flow limiting plate; 45. Sliding plate; 46. Telescopic spring; 5. Mounting components; 51. Fixing box; 52. Sliding rod; 53. Rotating shaft; 54. Limit handle; 55. Square sliding plate; 56. Return spring; 6. Waterproof top plate; 7. Charging cable; 8. Charging gun; 9. Sealing components; 91. Annular shell; 92. Sliding ring one; 93. Tension spring; 94. Sliding ring two; 95. Sealing ring. Detailed Implementation

[0020] The technical solutions in 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.

[0021] Please see the appendix Figure 1 This invention provides a charging pile protection structure and the charging pile itself, including a base 1. A protective outer shell 2 for an electrical box is fixedly connected to the top of the base 1, used to house and protect the core electrical components inside the charging pile, such as controllers and circuit breakers, preventing them from being subjected to physical impacts and disturbances from the external environment. Square boxes 3 are fixedly connected to both the left and right sides of the protective outer shell 2. Their main function is to integrate a drainage and cooling component 4 and an installation component 5, forming an independent functional module for handling rainwater collection, heat dissipation, and fixing the filter screen 42. The drainage and cooling component 4 is installed inside the square box 3, serving a core function... It uses collected rainwater to physically cool the charging pile and automatically discharges it when there is too much rainwater, realizing the recycling of water resources and overheat protection of the equipment. Two installation components 5 are installed on the left and right sides of the square box 3, which are specifically used to quickly install and remove the filter screen 42. The maintenance process is simplified through mechanical structure, ensuring that users can easily replace or clean the filter screen 42. A waterproof top plate 6 is fixedly connected to the top of the electrical box protective shell 2. As the top shielding structure of the equipment, its main function is to prevent rainwater from directly hitting the electrical box protective shell 2 and guide the rainwater to the square box 3 on both sides. Please see the appendix Figure 2 To be continued Figure 4The drainage and cooling component 4 includes a vent 41, which serves as a channel for external rainwater and air to enter the drainage and cooling component 4. Its design aims to guide water flow into the water storage tank 43 while simultaneously assisting internal air circulation to enhance heat dissipation. The vent 41 is externally and fixedly connected to the interior of the square housing 3. A filter screen 42 is fixedly connected to the far side of each of the two vents 41. Its function is to perform preliminary filtration when rainwater enters the vent 41, intercepting larger impurities such as leaves and sand, ensuring that the water entering the water storage tank 43 is relatively clean. The water storage tank 43 is fixedly connected inside the square housing 3 to temporarily store the rainwater passing through the filter screen 42. This water can absorb the heat generated during equipment operation and, through evaporation, play an auxiliary role in reducing the internal temperature. A flow-limiting plate 44 is fixedly connected to the bottom of the square box 3 and installed at the bottom of the water storage tank 43. It is used to control the discharge rate of rainwater in the water storage tank 43, prevent the water from being emptied instantly when the water volume is too large, and realize a slow and continuous drainage process. A drainage component is slidably connected inside the square box 3. The drainage component includes a sliding plate 45, which is the core component of the weight sensing. When there is too much water in the square box 3, it slides downward under the action of gravity, thereby activating the drainage mechanism to discharge the excess water. The sliding plate 45 is slidably connected to the inside of the square box 3. Multiple telescopic springs 46 are fixedly connected to the bottom of the sliding plate 45 to support the sliding plate 45. After the water is discharged and the weight is reduced, the spring force is used to push the sliding plate 45 back to its original position, so that the drainage structure automatically resets and is ready for the next operation.

[0022] Specifically, the system converts rainwater from the environment into a cooling resource that requires no energy consumption through vents 41 and filters 42. It also utilizes the evaporation of water in the water tank 43 to absorb heat from the equipment. Simultaneously, it features a dual intelligent drainage function: on one hand, a flow-limiting plate 44 ensures continuous and slow drainage to retain cooling water; on the other hand, in extreme conditions such as heavy rain, the weight of the accumulated water drives a mechanical structure consisting of a sliding plate 45 and a telescopic spring 46 to automatically and quickly drain excess water, effectively preventing internal waterlogging. This design significantly improves the operational stability and energy efficiency of the charging pile under various weather conditions.

[0023] Please see the appendix Figure 5 and attached Figure 6The mounting component 5 includes a fixed box 51. Inside the fixed box 51, a sliding rod 52 is slidably connected, connecting a limit handle 54 and a square slide plate 55. Its core function is to transmit operating force. When the limit handle 54 is rotated, it moves within the fixed box 51, thereby controlling the forward and backward movement of the square slide plate 55. Inside the sliding rod 52, a rotating shaft 53 is fixedly connected, serving as a force conversion hub. It converts the rotational motion of the limit handle 54 into the linear motion of the sliding rod 52, and is a key transmission component for manually controlling the position of the square slide plate 55. The external rotating shaft 53 is rotatably connected to the limit handle 54, which provides a manual operation interface for maintenance personnel. By rotating this handle, the internal linkage mechanism can be easily driven to quickly install and remove the filter screen 42. On the side of the sliding rod 52 away from the filter screen 42, a square slide plate 55 is fixedly connected, which is a pressing component that directly contacts the filter screen 42. Under the push of the return spring 56, it firmly presses the filter screen 42 onto the vent 41 and retracts during manual operation to release the filter screen 42.

[0024] Multiple return springs 56 are fixedly connected to the side of the square slide plate 55 away from the filter screen 42. Their function is to provide continuous positive pressure to the square slide plate 55, ensuring that the filter screen 42 is always tightly fixed in the non-maintenance state, and to automatically reset it after manual release. One side of the water storage tank 43 is fixedly connected to the inner wall of the square box 3, and the other side of the water storage tank 43 is fixedly connected to the outside of the base 1. One side of the flow limiting plate 44 is fixedly connected to the inside of the water storage tank 43, and the other side of the flow limiting plate 44 is fixedly connected to the outside of the base 1. The bottom of the telescopic spring 46 is fixedly connected to the bottom inner wall of the square box 3. The two sliding plates 45 are slidably connected to the inside of the square box 3 on opposite sides. The two sliding plates 45 are slidably connected to the left and right sides of the base 1 on opposite sides. The outside of the limiting handle 54 is in contact with one side of the fixed box 51. The outside of the square slide plate 55 is slidably connected to the inner wall of the fixed box 51. One side of the filter screen 42 is in contact with one side of the square slide plate 55. The adjacent side of the two filters 42 is in contact with the opposite side of the two vents 41.

[0025] Specifically, the external limit handle 54, in conjunction with the internal rotating shaft 53 and sliding rod 52, transforms the simple rotation operation of the maintenance personnel into a linear backward movement of the square sliding plate 55. This allows the filter screen 42 to be released and removed instantly for cleaning or replacement, completely eliminating the tools and complex steps required for traditional screw or clip disassembly. Crucially, the application of the return spring 56 not only provides continuous clamping force in the default state to ensure the stability of the filter screen 42, but also automatically resets the entire mechanism after maintenance, thereby greatly simplifying the maintenance process and improving the ease of operation and system reliability.

[0026] Please see the appendix Figure 7 and attached Figure 8 A charging pile includes a charging cable 7, which serves as the electrical energy transmission medium connecting the charging pile body and the charging gun 8. Its function is to safely transmit the electrical energy inside the electrical box protective shell 2 to the charging gun 8 for charging electric vehicles. The left side of the charging cable 7 is fixedly connected to the right side of the electrical box protective shell 2, and the other side of the charging cable 7 is fixedly connected to the charging gun 8, which is the terminal execution component for charging operations. Users connect the charging pile to the vehicle's charging port through it to achieve the final docking and transmission of electrical energy. A sealing component 9 is fixedly connected to the outside of the charging gun 8. Its overall function is to provide a reliable sealed environment when the charging gun 8 docks with the vehicle's charging port, preventing moisture and dust from entering the charging interface and ensuring charging safety.

[0027] The sealing assembly 9 includes an annular outer shell 91, which serves as the fixed outer shell of the sealing assembly 9. It provides support and protection for internal moving parts such as sliding rings and springs, and serves as the connection base between the entire sealing structure and the charging gun 8 body. A sliding ring 92 is slidably connected inside the annular outer shell 91. When the charging gun 8 is inserted, this ring is forced to slide backward, acting as the initial force-bearing component that triggers the sealing action. Its displacement directly stretches the tension spring 93 behind it. Multiple tension springs 93 are fixedly connected to the front side of the sliding ring 92 to provide a restoring force. When the charging gun 8 is pulled out, its stored elasticity... Energy will pull the compressed sliding ring 1 92 and sliding ring 2 94 back to their initial positions, causing the sealing structure to automatically reset. Sliding ring 2 94 is fixedly connected to the rear side of sliding ring 1 92. Its function is to transmit sliding displacement and serve as a direct mounting base for the rear sealing ring 95, driving the sealing ring 95 to move synchronously. The sealing ring 95 is fixedly connected to the rear side of sliding ring 2 94. This is the key elastic element for achieving the final sealing effect. Under the action of sliding ring 2 94, it will be tightly pressed against the connection surface of the charging interface, forming a waterproof and dustproof barrier.

[0028] Specifically, the process of plugging and unplugging the charging gun 8 directly transforms into a sealing and unlocking process. When the charging gun 8 is inserted, the physical thrust will cause the sliding ring 1 92 and sliding ring 2 94 to move backward synchronously, thereby pressing the sealing ring 95 at the rear end tightly onto the connection surface, forming a tight waterproof and dustproof barrier. After charging is completed, the elastic energy stored in the tension spring 93 will automatically pull the entire sliding structure back to its original position, releasing the seal. This design fundamentally solves the problem of interface contamination or damage caused by user negligence such as forgetting to put on the dust cap. Through an automated process that does not require human intervention, the reliability and safety of the charging connection are greatly improved.

[0029] Working principle: The entire device is protected from rain by a waterproof top plate 6. Rainwater will flow down the outer wall, and some of the water will enter the device through the ventilation opening 41 on the square box 3. When it enters, the filter screen 42 will intercept leaves, debris and other objects, thus purifying the rainwater.

[0030] The purified rainwater is collected in the water storage tank 43. This stored water can absorb the heat generated during the operation of the charging pile and is cooled by the evaporation auxiliary equipment. When there is too much water in the water storage tank 43, the water flow is controlled by the flow limiting plate 44 and slowly discharged. At the same time, when there is too much water in the square box 3, its weight will press the sliding plate 45 below, causing it to slide downwards and compress the telescopic spring 46, thereby triggering drainage and discharging the excess water. When the water level drops, the telescopic spring 46 will spring the sliding plate 45 back to its original position.

[0031] Mounting assembly 5 is used to secure and replace the filter screen 42. In normal operation, the return spring 56 pushes the square sliding plate 55, firmly pressing it against the filter screen 42 and securing it to the vent 41. When cleaning or replacing the filter screen 42 is required, the operator can rotate the limit handle 54, causing the rotating shaft 53 and sliding rod 52 to move, retracting the square sliding plate 55 to easily remove the filter screen 42. After operation, the return spring 56 automatically pushes the square sliding plate 55 back to its original position, re-secureing the filter screen.

[0032] The charging gun 8 is connected to the main body via the charging cable 7. To prevent water and dust damage during charging or storage, a sealing component 9 is provided on the charging gun 8. When the charging gun 8 is inserted into the vehicle's charging port, the interface pushes the sliding ring 92 and sliding ring 94 backward. This action stretches the tension spring 93, causing the rear sealing ring 95 to fit tightly against the connection surface, forming an effective seal. After charging is complete and the charging gun 8 is removed, the tension of the tension spring 93 causes the sliding ring 92 and sliding ring 94 to automatically return to their original positions.

[0033] 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 charging pile protection structure, including a base (1), characterized in that, The top of the base (1) is fixedly connected to the electrical box protective shell (2), and square boxes (3) are fixedly connected to both the left and right sides of the electrical box protective shell (2). The interior of the square box (3) is provided with a drainage and cooling component (4). Two installation components (5) are installed on both the left and right sides of the exterior of the square box (3). The top of the electrical box protective shell (2) is fixedly connected to a waterproof top plate (6). The drainage and cooling component (4) includes a vent (41), the outside of which is fixedly connected to the inside of the square box (3), and a filter screen (42) is fixedly connected to the far side of each of the two vents (41). A water storage tank (43) is fixedly connected inside the square box (3), and a flow limiting plate (44) is fixedly connected to the bottom of the water storage tank (43). A drainage component is slidably connected inside the square box (3).

2. The charging pile protection structure according to claim 1, characterized in that, The drainage assembly includes a sliding plate (45), which is slidably connected to the outside of the square box (3) and a plurality of telescopic springs (46) are fixedly connected to the bottom of the sliding plate (45).

3. The charging pile protection structure according to claim 1, characterized in that, The mounting assembly (5) includes a fixed box (51), a sliding rod (52) is slidably connected inside the fixed box (51), a rotating shaft (53) is fixedly connected inside the sliding rod (52), a limit handle (54) is rotatably connected to the outside of the rotating shaft (53), a square slide plate (55) is fixedly connected to the side of the sliding rod (52) away from the filter screen (42), and multiple return springs (56) are fixedly connected to the side of the square slide plate (55) away from the filter screen (42).

4. The charging pile protection structure according to claim 1, characterized in that, One side of the water storage tank (43) is fixedly connected to the inner wall of the square box (3), and the other side of the water storage tank (43) is fixedly connected to the outside of the base (1).

5. The charging pile protection structure according to claim 1, characterized in that, One side of the flow limiting plate (44) is fixedly connected to the inside of the water storage tank (43), and the other side of the flow limiting plate (44) is fixedly connected to the outside of the base (1).

6. The charging pile protection structure according to claim 1, characterized in that, The bottom of the telescopic spring (46) is fixedly connected to the bottom inner wall of the square box (3), the two sliding plates (45) are slidably connected to the inside of the square box (3) on opposite sides, and the two sliding plates (45) are slidably connected to the left and right sides of the base (1) on opposite sides.

7. The charging pile protection structure according to claim 1, characterized in that, The outside of the limiting handle (54) is in contact with one side of the fixed box (51), and the outside of the square sliding plate (55) is slidably connected to the inner wall of the fixed box (51).

8. The charging pile protection structure according to claim 1, characterized in that, One side of the filter (42) is in contact with one side of the square slide plate (55), and the adjacent side of the two filters (42) is in contact with the distant side of the two vents (41).

9. A charging pile, characterized in that, The charging pile protection structure according to any one of claims 1-8 includes a charging cable (7), the left side of which is fixedly connected to the right side of the electrical box protective shell (2), and the other side of which is fixedly connected to a charging gun (8), and the outside of which is fixedly connected to a sealing component (9).

10. A charging pile according to claim 9, characterized in that, The sealing assembly (9) includes an annular shell (91), with a sliding ring (92) slidably connected inside the annular shell (91). Multiple tension springs (93) are fixedly connected to the front side of the sliding ring (92), and a sliding ring (94) is fixedly connected to the rear side of the sliding ring (92). A sealing ring (95) is fixedly connected to the rear side of the sliding ring (94).