New energy vehicle safe charging protection system

Abstract

The utility model discloses a safe charging protection system for a new energy vehicle, and particularly relates to a direct current input to a rectifier module, a voltage protection module, a current protection module, a temperature protection module, a humidity protection module and the like when the new energy vehicle is charged. When a vehicle is charged, the power management system acquires voltage, current, temperature and humidity and judges whether the voltage, the current, the temperature and the humidity are within threshold values or not, so that the voltage protection module, the current protection module, the temperature protection module and the humidity protection module are started according to abnormal threshold values of a data safety area and are transmitted to a user side through the wireless module in time; and potential safety hazards caused by overshoot, unstable voltage and current, short circuit and fire disaster of the current new energy traffic tool can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and specifically to a safety charging protection system for new energy vehicles, aiming to improve the safety and reliability of new energy vehicles during the charging process and prevent potential safety hazards such as overcharging, short - circuiting, and fires caused by improper charging. Background Technique

[0002] With the rapid development of new energy technologies, new energy vehicles such as electric vehicles, electric motorcycles, and electric heavy trucks are gradually becoming popular. However, during the charging process, due to the complexity of the management system and the diversity of charging facilities, there are many potential safety hazards. For example, overcharging may cause thermal runaway, aging or design defects of charging facilities may lead to short - circuiting or fires, and high charging humidity may cause short - circuiting. Therefore, it is of great significance to develop a safe and reliable charging protection system. Summary of the Invention

[0003] The purpose of the utility model is to provide a safety charging protection system for new energy vehicles, which ensures the safety and reliability of the charging process by real - time monitoring the status, intelligently controlling and adjusting the charging process, and setting multiple safety protection mechanisms.

[0004] A safety charging protection system for new energy vehicles, which is composed of a rectification module, a voltage protection module, a current protection module, a temperature protection module, and a humidity protection module connected in series; Voltage protection module: When the voltage exceeds the safe voltage threshold, the charging power supply is immediately cut off by connecting the voltage protection module to prevent overcharging; Current protection module: During the charging process, if an abnormal increase in current is detected, the system immediately activates the over - current protection mechanism by connecting the current protection module to cut off the charging power supply and prevent short - circuiting; Temperature protection module: The temperature is real - time monitored by a temperature sensor. When the temperature exceeds the safe range, the system automatically reduces the charging power or stops charging by connecting the temperature protection module to prevent thermal runaway; Humidity protection module: The humidity of the charging port and the charging device is real - time monitored by a humidity sensor. When the humidity exceeds the safe range, the system automatically stops charging by connecting the humidity protection module to prevent conduction; The data output end of this system is also connected to a wireless module.

[0005] 1. Real - time Monitoring of the Status

[0006] During the charging process, parameters such as voltage, current, temperature, and humidity are real - time collected by the vehicle controller and transmitted to the charging management system. The charging management system processes and analyzes these data to determine whether it is in a safe charging state.

[0007] 2. Intelligent Control of the Charging Process

[0008] According to the real-time monitored status, the charging management system intelligently adjusts the charging strategy and parameters. When the voltage, current, humidity, and temperature are close to the safety thresholds, the system automatically adjusts the charging current to avoid overcharging, automatically adjusts the charging power according to the temperature to prevent thermal runaway problems caused by too high temperature, and automatically adjusts the humidity to prevent short-circuit problems.

[0009] 3. Set up multiple safety protection mechanisms

[0010] Voltage protection module: When the voltage exceeds the safety voltage threshold, the charging power supply is immediately cut off by connecting the voltage protection module to prevent overcharging.

[0011] Current protection module: During the charging process, if an abnormal increase in current is detected, the system immediately activates the overcurrent protection mechanism by connecting the current protection module to cut off the charging power supply and prevent safety hazards such as short circuits.

[0012] Temperature protection module: The temperature is monitored in real time by a temperature sensor. When the temperature exceeds the safe range, the system automatically reduces the charging power or stops charging by connecting the temperature protection module to prevent thermal runaway.

[0013] Humidity protection module: The humidity of the charging port and the charging device is monitored in real time by a humidity sensor. When the humidity exceeds the safe range, the system automatically stops charging by connecting the humidity protection module to prevent conduction.

[0014] 4. Fault warning and emergency handling

[0015] During the charging process, if any abnormal situation occurs, such as management system failure, charging facility failure, etc., the system immediately issues a fault warning signal and activates the emergency handling mechanism, and sends the fault information to the user-side APP through the connected wireless module for timely handling. Description of the drawings

[0016] Figure 1 is the system connection structure block diagram of the present utility model;

[0017] Figure 2 is the system flow block diagram of the present utility model. Detailed implementation manners

[0018] Such as Figure 1 、 2As shown in the figure, a safety charging protection system for new energy vehicles is composed of a rectification module, a voltage protection module, a current protection module, a temperature protection module, and a humidity protection module, which are electrically connected in sequence; Voltage protection module: When the voltage exceeds the safety voltage threshold, the charging power supply is immediately cut off by connecting the voltage protection module to prevent overcharging; Current protection module: During the charging process, if an abnormal increase in current is detected, the system immediately activates the overcurrent protection mechanism by connecting the current protection module to cut off the charging power supply and prevent short circuit; Temperature protection module: The temperature is monitored in real time by a temperature sensor. When the temperature exceeds the safe range, the system automatically reduces the charging power or stops charging by connecting the temperature protection module to prevent thermal runaway; Humidity protection module: The humidity of the charging port and the charging device is monitored in real time by a humidity sensor. When the humidity exceeds the safe range, the system automatically stops charging by connecting the humidity protection module to prevent conduction; The data output end of the system is also connected to a wireless module. Voltage monitoring, current monitoring, temperature monitoring, humidity monitoring, and wireless module signal transmission are completed.

[0019] Working principle: The utility model utilizes the charging management system to start during charging, processes and analyzes the collected voltage, current, humidity, and temperature data. When the voltage value, current value, temperature value, and humidity value are not within the safe threshold range, a DC output is formed by connecting the rectification module, and the voltage, current, temperature, and humidity protection modules are connected to automatically start and stop charging. At the same time, the signal is transmitted to the charging management system through RS485 Ethernet to repair and adjust the voltage value, current value, temperature value, and humidity value, and then connected to the wireless module to be transmitted to the user-side APP, effectively preventing safety hazards such as overcharging, short circuit, and fire during charging, and being able to timely grasp the real-time charging situation and make solutions as soon as possible. The AC input is connected to the rectification module to form a DC output. When an overvoltage or undervoltage fault occurs, the power supply is promptly disconnected by connecting the voltage protection module. The AC input is connected to the rectification module to form a DC output. When an overcurrent fault occurs, the power supply is promptly disconnected by connecting the current protection module. The AC input is connected to the rectification module to form a DC output. When a high-temperature anomaly is detected by the temperature sensor, the power supply is promptly disconnected by connecting the temperature protection module. The AC input is connected to the rectification module to form a DC output. When moisture or a high water volume is detected by the humidity sensor, the power supply is promptly disconnected by connecting the humidity protection module.

[0020] Implementation method: After the vehicle starts charging, the charging management system is activated. The real-time values of current, voltage, temperature, and humidity are collected through the charging management system, and whether there is an abnormality is accurately self-checked, monitored, processed, and analyzed. When the voltage monitoring exceeds the safety voltage threshold, the charging power supply is immediately cut off by connecting the voltage protection module, and the cut-off signal is transmitted to the charging management system through the RS485 Ethernet for self-check adjustment; when the current monitoring exceeds the safety current threshold, the charging power supply is immediately cut off by connecting the current protection module, and the cut-off signal is transmitted to the charging management system through the RS485 Ethernet for self-check adjustment; when the temperature monitoring exceeds the safety threshold, the charging power supply is immediately cut off by connecting the temperature protection module, and the cut-off signal is transmitted to the charging management system through the RS485 Ethernet for self-check adjustment; when the humidity monitoring exceeds the safety threshold, the power supply is immediately cut off by connecting the humidity protection module, and the cut-off signal is transmitted to the charging management system through the RS485 Ethernet for self-check adjustment; at the same time, the real-time data will be transmitted to the user-side App through the connected wireless module, and normal and safe charging will be started if all are within the safety threshold.

Claims

1. A safety charging protection system for new energy transportation vehicles, characterized in that The system is composed of a rectification module, a voltage protection module, a current protection module, a temperature protection module, and a humidity protection module that are electrically connected in sequence; Voltage protection module: When the voltage exceeds the safe voltage threshold, the charging power supply is immediately cut off by connecting the voltage protection module to prevent overcharging; Current protection module: During the charging process, if an abnormal increase in current is detected, the system immediately activates the overcurrent protection mechanism by connecting the current protection module to cut off the charging power supply and prevent short circuits; Temperature protection module: The temperature is monitored in real time by a temperature sensor. When the temperature exceeds the safe range, the system automatically reduces the charging power or stops charging by connecting the temperature protection module to prevent thermal runaway; Humidity protection module: The humidity of the charging port and the charging device is monitored in real time by a humidity sensor. When the humidity exceeds the safe range, the system automatically stops charging by connecting the humidity protection module to prevent conduction; The data output end of the system is also connected to a wireless module.

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