Intelligent charger for storage battery of electric vehicle

Abstract

The invention belongs to the electronic technique field and storage battery charging, and relates to an intelligent charger for a storage battery of an electric vehicle. The intelligent charger for the storage battery consists of 220V alternating current, a power transformer T, a full-wave rectification circuit, a pulse direct current indicating circuit, unidirectional controllable silicon and a trigger circuit thereof, a biasing circuit of a PNP triode VT1, a charging output terminal and a charging state indicating circuit. The intelligent charger for the storage battery of the electric vehicle has multiple protective functions of preventing a polar plate of the storage battery from falling off or electrodes of the storage battery from being disconnected, preventing the storage battery from being subjected to short circuit, preventing inverted connection of a positive electrode and a negative electrode of the storage battery, preventing nominal voltage of a storage battery module from being deflected, preventing the polar plate of the storage battery from being subjected to lead sulfate formation, charging quickly, self-stopping until the storage battery is full of power and the like, so that a great convenience is supplied to a storage battery user; and the intelligent charger is suitable to be extensively used by an electric vehicle user and also suitable for developing charging and maintenance services in a shop or a stall.

Description

technical field [0001] The invention belongs to the technical field of electronic technology and accumulator charging, and relates to an intelligent charger for an electric vehicle accumulator. Background technique [0002] The large capacity and high cost performance of the storage battery are unmatched by various rechargeable batteries. At present, the batteries used in electric bicycles generally use maintenance-free lead-acid batteries as the power source, so the performance of the batteries directly affects the working performance of electric bicycles. Therefore, how to use and maintain batteries is the most concerned thing for consumers. Most of the battery chargers are supporting devices for electric vehicles. Although the battery is very tolerant to the charging method, if the inferior charger is used for a long time, the aging of the battery will be accelerated and the capacity will drop rapidly, which will lead to the shortening of the mileage of the electric bicy...

AI Technical Summary

Problems solved by technology

Most of the battery chargers are supporting devices for electric vehicles. Although the battery is very tolerant to the charging method, if the inferior charger is used for a long time, the aging of the battery will be accelerated and the capacity will drop rapidly, which will lead to the shortening of the mileage of the electric bicycle and the heavy load. Problems such as decline in ability

There are many types of chargers for battery charging on the market, but almost all require that the positive and negative poles of the battery and the positive and negative poles of the charger must be connected correctly, otherwise, once the positive and negative poles are connected incorrectly, the performance or service life of the battery will be reduced , or burn out the electronic components in the charger; if it is serious, it will burn out the entire charger or charge the battery badly; there may even be serious consequences of battery explosion damage and injury; and most of the ordinary chargers have no repair function, There is no repair effect on the lead sulfate formed on the battery plate during charging, and the sulfation of the plate is an irreversible process

Long-term use of a charger with poor performance will have a very adverse effect on the performance of the battery, and this adverse effect will accumulate over time, eventually leading to a rapid decline in its capacity and a significant shortening of its service life

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