A safe charging pile with charging anomaly warning function

Abstract

This utility model relates to the technical field of electric vehicle charging equipment, and more particularly to a safe charging pile with a charging anomaly warning function. A safe charging pile with a charging anomaly warning function includes a shell, a control module, cables, a cable winding frame, a charging interface, and a charging gun. The control module is located on the upper inner side of the shell. Cable winding frames are fixedly connected to the left and right sides of the shell, and cables are provided on the left and right sides of the shell. The cables extend from inside the shell to the outside, with a portion of the cable wound around the cable winding frame on the same side. A charging interface is installed on the shell below the cable winding frame, and a charging gun is connected to the free end of the cable, which is inserted into the charging interface. This utility model uses voltage sensors, current sensors, and infrared temperature sensors to monitor the electrical parameters of the charging circuit and the temperature changes of the contact points of the charging interface in real time, achieving a graded warning effect for charging anomalies.

Description

Technical Field

[0001] This utility model relates to the technical field of electric vehicle charging equipment, and in particular to a safe charging pile with a charging anomaly warning function. Background Technology

[0002] With the rapid development of the electric vehicle industry, charging piles, as an important supporting infrastructure, have been widely used in public parking lots, commercial centers, residential communities, and highway service areas. However, in actual use, safety accidents caused by electrical faults, poor contact, overheating, and short circuits in charging piles occur frequently, seriously threatening the personal and property safety of users. Most existing charging piles only have basic charging functions and lack real-time and comprehensive monitoring methods for key parameters such as voltage, current, and temperature during the charging process. In particular, the contact points between the charging interface and the charging gun plug are prone to excessive local temperature rise due to oxidation, loosening, or high current, posing a potential risk of fire.

[0003] Furthermore, most charging stations lack effective automatic early warning and emergency response mechanisms in the event of serious malfunctions, relying on manual detection and intervention, resulting in delayed responses and difficulty in timely intervention for initial faults. Although some equipment is equipped with cooling fans or emergency stop buttons, their functions are limited and do not form a comprehensive safety protection system integrating monitoring, early warning, heat dissipation, power outage, and automatic fire extinguishing.

[0004] Therefore, it is necessary to design a safe charging station with a charging anomaly warning function to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing charging piles, which lack effective automatic early warning and emergency response mechanisms when serious faults occur, rely on manual discovery and intervention, have a delayed response, and are difficult to intervene in the early stage of faults in a timely manner, this utility model provides a safe charging pile with charging anomaly early warning function.

[0006] Technical Solution: A safe charging pile with charging anomaly warning function includes a shell, a control module, cables, a cable winding frame, a charging interface, a charging gun, a display screen, an emergency stop switch, a power distribution module, a voltage sensor, a current sensor, an infrared temperature sensor, and a fire extinguishing component. The control module is located on the upper inner side of the shell. Cable winding frames are fixedly connected to the left and right sides of the shell, and cables are located on both sides of the shell. The cables extend from inside the shell to the outside, with a portion of the cable wound around the cable winding frame on the same side. A charging interface is installed on the shell below the cable winding frame, and a charging gun is connected to the free end of the cable. The charging gun is inserted into the charging interface. A display screen is located on the upper front side of the shell, and an emergency stop switch is located below the display screen. A power distribution module is located on the inner side of the shell below the control module. A voltage sensor is located above the power distribution module, and a current sensor is located below the power distribution module. An infrared temperature sensor is located on one side of the power distribution module, aligned with the contact area between the charging interface and the charging gun. A fire extinguishing component is located on the lower inner side of the shell. The power distribution module, voltage sensor, current sensor, and infrared temperature sensor are all electrically connected to the control module.

[0007] Furthermore, the fire extinguishing assembly also includes a fire extinguisher, a solenoid valve, a nozzle, and a diffusion nozzle. Two fire extinguishers are located on the inner side of the lower part of the housing. The output port of the fire extinguisher is connected to the nozzle through the solenoid valve, and the output port of the nozzle is connected to the diffusion nozzle.

[0008] Furthermore, it also includes a fan, with ventilation openings on the left and right sides of the casing, and a fan installed on the inside of the casing corresponding to the ventilation openings. The fan is electrically connected to the control module.

[0009] Furthermore, it also includes an audible and visual alarm, which is located on the top of the casing and is electrically connected to the control module.

[0010] Furthermore, it also includes a protective door, which is rotatably connected to the lower right side of the front of the outer casing.

[0011] Furthermore, it also includes a door lock; a door lock is installed on the left side of the front of the protective door.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses voltage sensor, current sensor and infrared temperature sensor to monitor the electrical parameters of the charging circuit and the temperature change of the charging interface contact parts in real time, and combines the control module to perform multi-parameter fusion analysis, so as to timely identify potential fault risks such as overvoltage, undervoltage, overcurrent, short circuit and contact overheating, and achieve the effect of graded early warning of charging abnormalities.

[0013] 2. This utility model sets up an automatic fire extinguishing system consisting of a fire extinguisher, a nozzle, and a diffusion nozzle controlled by an electromagnetic valve. Based on the dual judgment of temperature threshold and rate of rise by an infrared temperature sensor, the fire extinguishing action is triggered, achieving the effect of automatically extinguishing the initial fire when a fire risk is detected. This significantly improves the inherent safety performance of the charging pile in the unattended state.

[0014] 3. This utility model forms a forced air duct by setting a fan and ventilation opening inside the shell. The control module dynamically adjusts the fan operation status according to temperature data. At the same time, it is equipped with a cable winding frame and a charging gun storage structure, which achieves effective heat dissipation to maintain stable equipment operation and realizes the effect of orderly cable storage and convenient maintenance management. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a structural diagram of the outer shell, display screen, and emergency stop switch of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the components of this utility model, including the cable, cable winding frame, and charging interface.

[0018] Figure 4 This is a structural diagram of the components of this utility model, including the charging gun, audible and visual alarm, and fire extinguisher. The component names and numbers in the diagram are as follows: 1. Housing; 101. Protective door; 102. Door lock; 2. Control module; 3. Ventilation opening; 31. Fan; 4. Cable; 5. Cable winding frame; 6. Charging interface; 7. Charging gun; 8. Display screen; 12. Emergency stop switch; 13. Audible and visual alarm; 15. Fire extinguisher; 151. Solenoid valve; 152. Nozzle; 153. Diffuser nozzle; 16. Power distribution module; 17. Voltage sensor; 18. Current sensor; 19. Infrared temperature sensor. Detailed Implementation

[0019] Example: A safe charging pile with charging anomaly warning function, such as... Figures 1-4As shown, the device includes a housing 1, a control module 2, cables 4, cable winding frames 5, a charging interface 6, a charging gun 7, a display screen 8, an emergency stop switch 12, a power distribution module 16, a voltage sensor 17, a current sensor 18, an infrared temperature sensor 19, and fire extinguishing components. The control module 2 is located on the upper inner side of the housing 1. Cable winding frames 5 are connected to the left and right sides of the housing 1, and cables 4 are located on the left and right sides of the housing 1. The cables 4 extend from inside the housing 1 to the outside, with part of their length wound around the cable winding frames 5 on the same side. A charging interface 6 is installed on the housing 1 below the cable winding frames 5, and the free end of the cable 4 is connected to the charging gun 7. The charging gun 7 is inserted into the charging interface 6. The upper front part of the outer casing 1 is equipped with a display screen 8, and an emergency stop switch 12 is located below the display screen 8. The inner side of the outer casing 1, below the control module 2, is equipped with a power distribution module 16. A voltage sensor 17 is located above the power distribution module 16, and a current sensor 18 is located below the power distribution module 16. An infrared temperature sensor 19 is located on one side of the power distribution module 16. The infrared temperature sensor 19 is aligned with the contact area between the charging interface 6 and the charging gun 7. A fire extinguishing component is located on the lower inner side of the outer casing 1. The power distribution module 16, voltage sensor 17, current sensor 18, and infrared temperature sensor 19 are all electrically connected to the control module 2.

[0020] like Figures 2-4 As shown, the fire extinguishing assembly also includes a fire extinguisher 15, a solenoid valve 151, a nozzle 152, and a diffusion nozzle 153. Two fire extinguishers 15 are provided on the lower inner side of the housing 1. The output port of the fire extinguisher 15 is connected to the nozzle 152 through the solenoid valve 151. The output port of the nozzle 152 is connected to the diffusion nozzle 153, which is used to diffuse the extinguishing agent in a directional manner to the area where electrical components are concentrated inside the housing 1.

[0021] like Figures 1-4 As shown, it also includes a fan 31, an audible and visual alarm 13, a protective door 101, and a door lock 102. Ventilation openings 3 are provided on the left and right sides of the outer casing 1. The fan 31 is installed on the inner side of the outer casing 1 corresponding to the ventilation openings 3. An audible and visual alarm 13 is provided on the top of the outer casing 1. The audible and visual alarm 13 can emit light signals and sound prompts of different intensities according to the fault level. The protective door 101 is rotatably connected to the lower right front side of the outer casing 1. The door lock 102 is installed on the left front side of the protective door 101. The audible and visual alarm 13 and the fan 31 are both electrically connected to the control module 2.

[0022] The operator can apply the corresponding technical solutions in this device to the technology of electric vehicle charging equipment according to specific circumstances. When charging is required, firstly, the charging gun 7 is unplugged from the charging interface 6 and connected to the vehicle's charging socket. The control module 2 collects the voltage and current signals in the charging circuit in real time through the voltage sensor 17 and the current sensor 18 to determine whether there are electrical abnormalities such as overvoltage, undervoltage, overcurrent, or short circuit. The infrared temperature sensor 19 continuously monitors the temperature change at the contact point between the charging interface 6 and the plug of the charging gun 7. When an abnormal temperature rise is detected, the control module 2 performs a comprehensive analysis based on the electrical parameters to identify potential fault risks.

[0023] If a minor anomaly is detected, the control module 2 activates the primary warning mechanism, displays the warning information on the display screen 8, and triggers the audible and visual alarm 13 to emit a low-intensity light signal and a prompt sound. When a serious fault is detected, the audible and visual alarm 13 is triggered to emit a strong light and a high-frequency alarm. At the same time, the power distribution module 16 can be instructed to cut off the power output to achieve emergency power outage protection. The emergency stop switch 12 can be manually triggered in case of an emergency to directly cut off the power supply circuit and improve emergency response capabilities.

[0024] During charging, the control module 2 adjusts the start / stop and speed of the fan 31 based on the temperature data detected by the infrared temperature sensor 19, achieving on-demand heat dissipation. External air enters through the ventilation openings 3 on both sides of the outer casing 1, forming a directional airflow under the action of the fan 31, which forcibly dissipates heat from components such as the power distribution module 16 and the control module 2, maintaining stable equipment operation. After charging is completed, the charging gun 7 can be reinserted into the charging interface 6, and the cable is wound on the cable winding frame 5 for easy storage and management.

[0025] When the infrared temperature sensor 19 continuously detects that the temperature in the charging interface 6 area is higher than the first preset threshold for a first duration, or the temperature rise rate exceeds the second preset threshold, the control module 2 determines that there is a fire risk and outputs an opening signal to the solenoid valve 151. The solenoid valve 151 is quickly turned on, and the extinguishing agent in the fire extinguisher 15 is delivered to the diffusion nozzle 153 through the nozzle 152. The diffusion nozzle 153 diffuses the extinguishing agent in a directional manner to the area where electrical components are concentrated, thereby achieving automatic extinguishing of the initial fire and enhancing the inherent safety performance of the equipment in an unattended state. The display screen 8 is used to display the charging status, power information and fault codes in real time. Users can obtain the equipment operating status by operating the display screen 8 and open or close the protective door 101 by operating the door lock 102 to inspect and replace the fire extinguisher 15.

[0026] The above structure coordinates the various sensing and execution units through the control module 2 to complete the status monitoring and emergency response during the charging process.

Claims

1. A safe charging pile with charging anomaly early warning function, characterized in that, The system includes a housing (1), a control module (2), cables (4), a cable winding frame (5), a charging interface (6), a charging gun (7), a display screen (8), an emergency stop switch (12), a power distribution module (16), a voltage sensor (17), a current sensor (18), an infrared temperature sensor (19), and fire extinguishing components. The control module (2) is located on the upper inner side of the housing (1). Cable winding frames (5) are fixedly connected to the left and right sides of the housing (1). Cables (4) are located on the left and right sides of the housing (1). The cables (4) are led out from inside the housing (1) and extend to the outside. Part of the cable is wound around the cable winding frame (5) on the same side. A charging interface (6) is installed on the housing (1) below the cable winding frame (5). The free end of the cable (4) is connected to a charging gun (7). The charging gun (7) is inserted into the charging interface (6). The upper front part of the outer shell (1) is equipped with a display screen (8). The area below the display screen (8) is equipped with an emergency stop switch (12). The inner side of the outer shell (1) is equipped with a power distribution module (16) located below the control module (2). The power distribution module (16) is equipped with a voltage sensor (17) above it and a current sensor (18) below it. An infrared temperature sensor (19) is equipped on one side of the power distribution module (16). The infrared temperature sensor (19) is aligned with the contact area between the charging interface (6) and the charging gun (7). The lower inner side of the outer shell (1) is equipped with a fire extinguishing component. The power distribution module (16), voltage sensor (17), current sensor (18) and infrared temperature sensor (19) are all electrically connected to the control module (2).

2. A safe charging pile with charging anomaly early warning function as described in claim 1, characterized in that, The fire extinguishing assembly also includes a fire extinguisher (15), a solenoid valve (151), a nozzle (152), and a diffuser nozzle (153). Two fire extinguishers (15) are provided on the lower inner side of the housing (1). The output port of the fire extinguisher (15) is connected to the nozzle (152) through the solenoid valve (151), and the output port of the nozzle (152) is connected to the diffuser nozzle (153).

3. A safe charging pile with charging anomaly early warning function as described in claim 2, characterized in that, It also includes a fan (31), ventilation openings (3) are provided on the left and right sides of the outer casing (1), and a fan (31) is installed on the inner side of the outer casing (1) corresponding to the ventilation openings (3). The fan (31) is electrically connected to the control module (2).

4. A safe charging pile with charging anomaly early warning function as described in claim 3, characterized in that, It also includes an audible and visual alarm (13), which is provided on the top of the housing (1) and is electrically connected to the control module (2).

5. A safe charging pile with charging anomaly early warning function as described in claim 4, characterized in that, It also includes a protective door (101), which is rotatably connected to the lower right front side of the outer casing (1).

6. A safe charging pile with charging anomaly early warning function as described in claim 5, characterized in that, It also includes a door lock (102), which is installed on the left side of the front of the protective door (101).

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