Electric bicycle intelligent charger with fireproof and explosion-proof function and charging method

Abstract

The invention discloses an electric bicycle smart charger, which belongs to the technical field of electric bicycles and includes a microcontroller, an AC switch connected to the microcontroller, an adjustable DC power supply, a charging control switch, a voltage collection module, and a current collection module. , memory and display module. In addition, the present invention also provides a charging method for an electric bicycle battery based on the above charger. The beneficial effects of the invention are: 1. It can match different types of batteries and automatically adjust charging parameters, solving the problem that electric bicycle chargers cannot be used universally; 2. It has leakage current protection to ensure the personal safety of users. It has protective functions such as anti-overcharge, anti-overvoltage, anti-overcurrent and anti-overheating. The battery can automatically cut off the power when it is full. Ensure the safety of the battery charging process. It has a charging voltage and temperature compensation function to ensure that the battery is not overcharged or undercharged, has less water loss, and extends 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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