Single-gun charging pile fast heat dissipation protection device

By increasing the contact area between the circulating cooling pipe and the charging components and designing a natural convection heat dissipation component that is easy to clean, the problem of contaminants entering the liquid cooling heat dissipation device in dusty or humid environments has been solved, achieving efficient heat dissipation and equipment stability.

CN224576497UActive Publication Date: 2026-07-31HAIKOU PUBLIC TRANSPORTATION NEW ENERGY VEHICLE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAIKOU PUBLIC TRANSPORTATION NEW ENERGY VEHICLE TECH CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing liquid cooling devices are difficult to isolate external pollutants in dusty or humid environments, leading to reduced heat dissipation efficiency and the risk of component corrosion, which affects the stability and maintenance frequency of charging piles.

Method used

By increasing the contact area between the circulating cooling pipe and the charging components, and combining it with natural convection heat dissipation components, external impurities are prevented from entering. At the same time, a filter plate structure that is easy to clean is designed to ensure heat dissipation and equipment stability.

Benefits of technology

It improves heat dissipation efficiency, reduces the risk of component corrosion, lowers maintenance frequency, and ensures the long-term operational stability of charging piles.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a rapid heat dissipation protection device for a single-gun charging pile. The utility model mainly includes a pile body, a charging component, and a heat dissipation mechanism. The heat dissipation mechanism includes a tank containing coolant, and a circulating cooling pipe is provided at the end of the tank body. The side of the circulating cooling pipe is snapped into the side of the charging component. The circulating cooling pipe has an S-shaped structure. The heat dissipation mechanism also includes a natural heat dissipation component that is easy to clean. This utility model solves the problems of poor heat dissipation effect of split liquid-cooled charging piles and inconvenient maintenance of natural heat dissipation modules. It can effectively improve the heat dissipation efficiency and reduce the physical labor of maintenance personnel.
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Description

Technical Field

[0001] This application relates to the field of charging piles, specifically to a fast heat dissipation protection device for a single-gun charging pile. Background Technology

[0002] Due to the large power output and complex environment, current car charging stations are increasingly focusing on heat dissipation performance. High temperatures not only force a reduction in charging voltage but also pose safety hazards. Currently, charging station heat dissipation methods mainly fall into three categories: air cooling, liquid cooling, and compressor cooling. Liquid cooling devices utilize circulating coolant to absorb heat generated by electronic components during charging and exchange heat with the radiator via liquid cooling pipes. This core temperature control system achieves efficient heat dissipation through the high specific heat capacity of liquids, offering advantages such as lower noise and more precise temperature control compared to traditional air cooling solutions. Such devices typically consist of a liquid-cooled pump, heat exchange module, water tank, and circulation pipes. They do not rely on forced cooling fans during operation but require ventilation holes in the charging station casing to assist with natural convection cooling from the water tank. However, ventilation holes cannot completely isolate dust, particulate matter, and other impurities during the introduction of outside air. Especially in dusty or humid environments, contaminants that seep in with the wind may adhere to the internal circuitry or the surface of liquid-cooled components. Long-term accumulation can lead to decreased heat dissipation efficiency, component corrosion, and even short-circuit risks, increasing equipment maintenance frequency and affecting the long-term operational stability of the charging station.

[0003] Therefore, in order to solve the above problems, this application provides a fast heat dissipation protection device for single-gun charging piles that increases the contact area between the circulation tube and electronic components to improve the liquid cooling efficiency, isolates external pollutants from entering the charging pile body in natural convection ventilation, and facilitates cleaning and maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a fast heat dissipation protection device for single-gun charging piles, aiming to solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fast heat dissipation protection device for a single-gun charging pile, including a pile body, a charging component installed inside the pile body, the lower end of the charging component being connected to the charging pile host via a cable, and a heat dissipation mechanism being installed at the rear of the lower end of the pile body.

[0006] The heat dissipation mechanism includes a housing containing coolant, a circulating cooling pipe at the end of the housing, a side of the circulating cooling pipe engaging with the side of the charging component, the circulating cooling pipe having an S-shaped structure, a circulating pump at the end of the housing, and the circulating cooling pipe connected to the housing via the circulating pump; the heat dissipation mechanism also includes a natural heat dissipation component that is easy to clean.

[0007] The circulating cooling pipes are in contact with the side of the charging components, and heat is dissipated by feeding the charging components through heat exchange. The S-shaped design of the circulating cooling pipes increases the contact area with the charging components, making heat dissipation more thorough and efficient. At the same time, the natural heat dissipation components provide natural convection heat dissipation for the enclosure and prevent external debris from entering the charging pile, further enhancing the heat dissipation effect.

[0008] Furthermore, a touch screen is installed at the front end of the pile, and a controller is installed inside the pile. The controller is connected to the touch screen, the charging component, and the circulating pump via electrical signals. A mounting bracket is bolted inside the pile, and the lower end of the controller is snapped into the upper end of the mounting bracket. The charging component is equipped with a temperature sensor and an over-temperature protector that cuts off power when the temperature is too high. A charging gun holder is installed on the side of the pile, and a through hole is opened at the lower end of the charging gun holder. The charging cable extends through the through hole into the pile and connects to the charging component.

[0009] Furthermore, ventilation windows are provided on both sides of the rear end of the pile, and sliding grooves are provided at the upper and lower ends of the ventilation windows. The natural heat dissipation component includes a filter plate, a slide rail, a slider, a connecting rod, and a cleaning block. The upper and lower ends of the filter plate are slidably connected to the sliding grooves, and the end of the filter plate is engaged with the side of the ventilation window. The slide rail is located on the side of the ventilation window, and the slider is slidably connected to the slide rail. One end of the connecting rod is welded and fixed to the side of the slider, and the upper end of the cleaning block is slidably engaged with the lower end of the connecting rod.

[0010] The connecting rod and cleaning block allow for easy cleaning of the filter plates by pulling the slider during routine maintenance. This makes it convenient for maintenance personnel to clean the filter plates when water is not available, ensuring efficient ventilation and heat dissipation. The sliding connection of the filter plates also facilitates disassembly and replacement when the filter plates reach the end of their service life.

[0011] Furthermore, the upper end of the slider is connected to the upper wall of the slide rail by a spring, and the end of the cleaning block away from the connecting rod contacts the filter plate.

[0012] Compared with existing technologies, it has the following beneficial effects:

[0013] This utility model provides a fast heat dissipation protection device for a single-gun charging pile. The device uses a circulating cooling pipe that contacts the side of the charging component to dissipate heat through heat exchange. The S-shaped design of the circulating cooling pipe increases the contact area with the charging component, making heat dissipation more thorough and efficient. At the same time, the device uses a natural heat dissipation component to provide natural convection heat dissipation for the housing and prevents external debris from entering the pile body, further enhancing the heat dissipation effect.

[0014] The connecting rod and cleaning block allow for easy cleaning of the filter plates by pulling the slider during routine maintenance. This makes it convenient for maintenance personnel to clean the filter plates when water is not available, ensuring efficient ventilation and heat dissipation. The sliding connection of the filter plates also facilitates disassembly and replacement when the filter plates reach the end of their service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a fast heat dissipation protection device for a single-gun charging pile according to this utility model.

[0016] Figure 2 This is a cross-sectional view of a fast heat dissipation protection device for a single-gun charging pile according to the present invention.

[0017] Figure 3 This is a schematic diagram of the housing structure of a fast heat dissipation protection device for a single-gun charging pile according to the present invention.

[0018] Figure 4 This is a schematic diagram showing the connection relationship of the natural heat dissipation components of a single-gun charging pile rapid heat dissipation protection device according to this utility model.

[0019] In the diagram: 1-Pile body; 11-Touch display screen; 12-Controller; 13-Placement rack; 14-Charging gun holder; 15-Through hole; 16-Ventilation window; 161-Slide groove; 2-Charging component; 3-Heat dissipation mechanism; 31-Box body; 32-Circulating cooling pipe; 33-Circulating pump; 34-Natural heat dissipation component; 341-Filter plate; 342-Slide rail; 343-Slider; 344-Connecting rod; 345-Cleaning block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 As shown, this utility model provides the following technical solution: a fast heat dissipation protection device for a single-gun charging pile; including a pile body 1, a charging component 2 is provided inside the pile body 1, the lower end of the charging component 2 is connected to the charging pile host through a cable, and a heat dissipation mechanism 3 is provided at the rear of the lower end of the pile body 1.

[0022] The heat dissipation mechanism 3 includes a housing 31 containing coolant. A circulating cooling pipe 32 is provided at the end of the housing 31. The side of the circulating cooling pipe 32 is snapped into the side of the charging component 2. The circulating cooling pipe 32 has an S-shaped structure. A circulating pump 33 is provided at the end of the housing 31. The circulating cooling pipe 32 is connected to the housing 31 through the circulating pump 33. The heat dissipation mechanism 3 also includes a natural heat dissipation component 34 that is easy to clean.

[0023] When the charging component 2 is charging, the coolant stored in the housing 31 flows through the circulating cooling pipe 32 and exchanges heat with the charging component 2 through the contact between the circulating cooling pipe 32 and the charging component 2, thereby cooling the charging component 2. The S-shaped circulating cooling pipe 32 increases the contact area with the charging component 2, resulting in more efficient cooling during heat exchange. At the same time, the natural heat dissipation component 34 provides convective natural heat dissipation for the housing 31 and prevents external debris from entering the pile body 1 and affecting the operation of the equipment.

[0024] See Figure 1 as well as Figure 2 A touch screen display 11 is installed at the front end of the charging pile 1, and a controller 12 is installed inside the charging pile 1. The controller 12 is electrically connected to the touch screen display 11, the charging component 2, and the circulation pump 33. The controller 12 inside the charging pile 1 has a built-in intelligent power distribution system and a charging control system to adapt to the different configuration requirements of vehicles with different charging power in the form of shared charging piles. It reliably controls the charging component 2 to charge the vehicle at high power through CAN bus communication between the charging pile and the charging pile.

[0025] The touch display screen 11 can be an LCD touch screen, which enables intuitive display even in high-brightness outdoor environments and allows users to easily start charging by scanning a code with a mobile app.

[0026] See Figure 2 The charging pile 1 has a bolted mounting bracket 13 inside, and the lower end of the controller 12 is snapped into the upper end of the mounting bracket 13. Specifically, the charging pile 1 adopts a front-opening design, requiring operating space to be reserved around its perimeter during installation. The charging pile 1 is installed on a concrete or channel steel foundation, with holes in the base and bolted connections. Cables are pre-embedded, and the AC power supply system for the split-type charging pile uses a three-phase five-wire system. Copper core wires are preferred for the AC power lines. Simultaneously, fireproof sealant is used to seal the junction of the charging pile 1 and the foundation to prevent insects or dirt from entering the interior of the charging pile 1.

[0027] It should be noted that the charging component 2 is equipped with a temperature sensor and an over-temperature protector that cuts off power when the temperature is too high. When the temperature sensor detects that the temperature of the charging component 2 is too high, the controller 12 controls the charging power to prevent the temperature from rising excessively. At the same time, a surge protector is also installed at the top of the charging pile 1.

[0028] See Figure 1 A charging gun holder 14 is provided on the side of the pile body 1. A through hole 15 is provided at the lower end of the charging gun holder 14. The charging cable extends into the pile body 1 through the through hole 15 and is connected to the charging component 2. The charging gun holder 14 is equipped with an electronic latch, which is electrically connected to the controller 12.

[0029] As another embodiment, see Figure 3 as well as Figure 4 As shown, in order to facilitate natural heat dissipation of the box 31, ventilation windows 16 are provided on both sides of the rear end of the pile body 1, and sliding grooves 161 are provided at the upper and lower ends of the ventilation windows 16. The two sides of the box body 31 are coaxial with the ventilation windows 16, and the box body 31 can be directly disassembled, replaced or repaired through the ventilation windows 16.

[0030] See Figure 4 To prevent debris such as leaves and cigarette butts from the external environment from entering the pile body 1, the natural heat dissipation component 34 includes a filter plate 341, a slide rail 342, a slider 343, a connecting rod 344, and a cleaning block 345. The upper and lower ends of the filter plate 341 are slidably connected to the slide groove 161, and the end of the filter plate 341 is engaged with the side of the ventilation window 16. The slide rail 342 is opened on the side of the ventilation window 16, and the slider 343 is slidably connected to the slide rail 342. One end of the connecting rod 344 is welded and fixed to the side of the slider 343, and the upper end of the cleaning block 345 is slidably engaged with the lower end of the connecting rod 344.

[0031] The filter plate 341 is equipped with a locking device at the end of the filter plate 341 and the side of the ventilation window 16 to prevent non-maintenance personnel from removing the filter plate 341 during daily use. The filter plate 341 can be slidably locked to the ventilation window 16 by aligning the filter plate 341 with the slide groove 161, completely covering the ventilation window 16; and it is convenient to stack the filter plate 341 for replacement.

[0032] During routine maintenance of the charging pile, the slider 343 is pulled directly to make it move vertically downward along the slide rail 342, which in turn causes the connecting rod 344 to move downward. The displacement of the connecting rod 344 causes the filter block to rub against the outside of the filter plate 341, thereby scraping off the dirt, dust and other debris attached to the outside of the filter plate 341 to improve ventilation efficiency.

[0033] It should be noted that the upper end of slider 343 is connected to the upper wall of slide rail 342 by a spring. This means that when slider 343 is pulled down and the applied force is released, slider 343 is pulled back to its initial position by the tension of the spring, so that slider 343 is always on the upper part of slide rail 342 under normal conditions.

[0034] Furthermore, the end of the cleaning block 345 away from the connecting rod 344 contacts the filter plate 341. At the same time, the end of the cleaning block is made of a material with a certain deformation capacity, which can effectively scrape off the debris on the surface of the filter plate 341 while avoiding damage to the filter plate 341. Specifically, it can be made of plastic or rubber with low deformation performance.

[0035] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-gun charging pile quick heat dissipation protection device, characterized in that The pile includes a pile body (1), a charging component (2) is provided inside the pile body (1), the lower end of the charging component (2) is connected to the charging pile host via a cable, and a heat dissipation mechanism (3) is provided at the rear of the lower end of the pile body (1). The heat dissipation mechanism (3) includes a housing (31) containing coolant. A circulating cooling pipe (32) is provided at the end of the housing (31). The side of the circulating cooling pipe (32) is snapped into the side of the charging component (2). The circulating cooling pipe (32) has an S-shaped structure. A circulating pump (33) is provided at the end of the housing (31). The circulating cooling pipe (32) is connected to the housing (31) through the circulating pump (33). The heat dissipation mechanism (3) also includes a natural heat dissipation component (34) that is easy to clean.

2. The single-gun charging pile quick heat dissipation protection device according to claim 1, characterized in that, The front end of the pile body (1) is provided with a touch screen (11), and the inside of the pile body (1) is provided with a controller (12). The controller (12) is electrically connected to the touch screen (11), the charging component (2), and the circulating pump (33).

3. The single-gun charging pile quick heat dissipation protection device according to claim 2, characterized in that, The pile body (1) is bolted to a placement frame (13), and the lower end of the controller (12) is engaged with the upper end of the placement frame (13).

4. The single-gun charging pile quick heat dissipation protection device according to claim 1, characterized in that, The charging component (2) is equipped with a temperature sensor and an over-temperature protector that cuts off power when the temperature is too high.

5. The single-gun charging pile quick heat dissipation protection device according to claim 1, characterized in that, A charging gun holder (14) is provided on the side of the pile body (1). A through hole (15) is provided at the lower end of the charging gun holder (14). The charging cable extends through the through hole (15) into the interior of the pile body (1) and is connected to the charging component (2).

6. The single-gun charging pile quick heat dissipation protection device according to claim 1, characterized in that, Ventilation windows (16) are provided on both sides of the rear end of the pile body (1), and sliding grooves (161) are provided at the upper and lower ends of the ventilation windows (16).

7. The single-gun charging pile quick heat dissipation protection device according to claim 6, characterized in that, The natural heat dissipation component (34) includes a filter plate (341), a slide rail (342), a slider (343), a connecting rod (344), and a cleaning block (345). The upper and lower ends of the filter plate (341) are slidably connected to the slide groove (161). The end of the filter plate (341) is engaged with the side of the ventilation window (16). The slide rail (342) is opened on the side of the ventilation window (16). The slider (343) is slidably connected to the slide rail (342). One end of the connecting rod (344) is welded and fixed to the side of the slider (343). The upper end of the cleaning block (345) is slidably engaged with the lower end of the connecting rod (344).

8. The single-gun charging pile quick heat dissipation protection device according to claim 7, characterized in that, The upper end of the slider (343) is connected to the upper wall of the slide rail (342) by a spring.

9. The single-gun charging pile quick heat dissipation protection device according to claim 7, characterized in that, The end of the cleaning block (345) away from the connecting rod (344) contacts the filter plate (341).