PCB device for detecting battery of electric vehicle

Abstract

The invention discloses a PCB device for detecting a battery of an electric vehicle. The device is characterized by comprising an alternating current power supply input, a PFC module, a DC / DC module, an output module, a charging output end, a battery pack, a voltage equalizer, a short circuit protector, an MCU chip, a DS2438 optocoupler, an alarm buzzer, a CAN module, a CAN bus and a single bus. According to the device, an optical coupling module is designed to monitor the over-charge, over-discharge, over-current and over-temperature of the battery pack in real time; whether the whole circuit is short-circuited or not is monitored through the short circuit protector, real-time monitoring information is sent to a client side through a built-in MCU processing module and the wireless communication transmission CAN module, and a user can directly check the electric quantity and the charging state of the battery at the client side; and when the battery is overcharged in the charging process or is overdischarged in the using process, the MCU of the monitoring module can control the buzzer to give an alarm, and a user is reminded to quickly deal with dangerous cases.

Description

technical field [0001] The invention belongs to the field of battery monitoring, and in particular relates to a PCB circuit board device for electric vehicle battery detection. Background technique [0002] Batteries are the energy and power source of electric vehicles. Most of the batteries installed on electric vehicles currently use lead-acid batteries. Lead-acid batteries have the advantages of long cycle life, no memory effect, and good safety. However, lead-acid batteries also have some inherent characteristics. For example: long-term overcharging or over-discharging is not allowed, and overcharging or over-discharging will shorten the battery life; During the charging process, if the user leaves the electric car, the car body is in a locked state, and the user cannot know the charging status of the battery of the electric car in real time; Leakage, nature, explosion and other dangerous situations occur during the use of the battery; [0003] Aiming at the above batt...

AI Technical Summary

Problems solved by technology

[0002] Batteries are the energy and power source of electric vehicles. Most of the batteries installed on electric vehicles currently use lead-acid batteries. Lead-acid batteries have the advantages of long cycle life, no memory effect, and good safety. However, lead-acid batteries also have some inherent characteristics. For example: long-term overcharging or over-discharging is not allowed, and overcharging or over-discharging will shorten the battery life; During the charging process, if the user leaves the electric car, the car body is in a locked state, and the user cannot know the charging status of the battery of the electric car in real time; Leakage, nature, explosion and other dangerous situations occur during the use of the battery;

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