Fireproof and explosion-proof intelligent charger and charging method

Abstract

The invention discloses an electric bicycle intelligent charger, belonging to the technical field of the electric bicycle, comprising a microcontroller, an alternating current switch connected with the microcontroller, an adjustable direct current power supply, a charging control switch, a voltage acquisition module, a current acquisition module, a memory and a display module. In addition, the invention also provides a charging method of an electric bicycle battery based on the charger. The invention has the advantages that: 1, different types of batteries can be matched, charging parameters can be automatically adjusted, and the problem that the electric bicycle charger is not universal is solved; 2, leakage current protection is provided to ensure the personal safety of users. Protect against overcharge, overvoltage, overcurrent and overheat. Automatic power off when battery is full. So that that battery char process is safe. It has the function of charging voltage and temperature compensation, which ensures that the battery is not under-charged and has less water loss and prolongs the battery life.

Description

technical field [0001] The invention belongs to the technical field of electric bicycles, and in particular relates to an electric bicycle intelligent charger and a charging method with fireproof and explosion-proof functions. Background technique [0002] Ordinary chargers are only suitable for fixed-type batteries. If the charger does not match the battery signal, it may cause the battery to fail to charge or be severely overcharged, or even cause the battery to catch fire and explode. The charging parameters of the conventional charger are adjusted according to the parameters of the new battery. As the battery ages during use, the internal resistance of the battery will increase, the capacity will decrease, and the charging tail current will increase. Failure to switch from the equal charge state to the floating charge state in time will also cause serious overcharge of the battery and even cause a fire. After investigation, more than 80% of the fire accidents caused by ...

AI Technical Summary

Problems solved by technology

[0002] Ordinary chargers are only suitable for fixed-type batteries. If the charger does not match the battery signal, it may cause the battery to fail to charge or be severely overcharged, or even cause the battery to catch fire and explode.

The charging parameters of the conventional charger are adjusted according to the parameters of the new battery. As the battery ages during use, the internal resistance of the battery will increase, the capacity will decrease, and the charging tail current will increase. Failure to switch from the equal charge state to the floating charge state in time will also cause serious overcharge of the battery and even cause a fire

After investigation, more than 80% of the fire accidents caused by electric bicycles occurred during charging at night. Many electric bicycle users charge at night. After the battery is fully charged, the power cannot be turned off artificially. Power failure greatly increases the hidden danger of battery overcharging and fire

In addition, ordinary chargers have no temperature compensation function, which may easily cause undercharging in winter and overcharging in summer, and there is no protection function for abnormal battery temperature during charging.

Conventional chargers do not have a hardware self-test function. If the current limiting or voltage limiting circuit components are damaged, it may cause a safety accident

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