Vehicle-mounted electrical vehicle charger with memory function

Abstract

The invention provides a vehicle-mounted electrical vehicle charger with a memory function, relating to a charger technology. The vehicle-mounted electrical vehicle charger comprises an AC input circuit, a power factor correction circuit, a high-voltage DC circuit, a DC-DC converting circuit, an output control circuit, a charging output terminal, an MCU chip, a battery pack voltage detection circuit, an operating data storage module, a vehicle control signal connection port, a perpetual calendar chip, a data reading port and an auxiliary power supply circuit, wherein the charging output terminal is connected with an battery pack of an electrical vehicle for charging the battery pack; and the MCU chip monitors the voltage of the battery pack through the battery pack voltage detection circuit, automatically records the charging and discharging data of the battery pack and stores the data in an operating data storage chip, wherein the recorded data comprises times for normally completing the charging process; times for not charging timely after discharging and occurrence time; times for switching off to stop charging while not being fully charged and occurrence time; and times that the voltage of the battery pack reaches low-voltage protection and occurrence time.

Description

technical field [0001] The present invention relates to charger technology, in particular to a charger mainly applied to electric vehicles powered by batteries, that is, chargers for charging battery packs of electric vehicles. The electric vehicles include electric forklifts, golf carts, sightseeing cars and electric vehicles. means of transport. Background technique [0002] a) The current chargers on the market can only display the power of the battery pack at the moment, and can only play the role of prompting whether to charge immediately. When the power is not enough, it reminds the user to charge immediately. A microprocessor with detection, comparison and display functions is enough, that is, it does not have a memory function, and it can memorize the use process and working conditions of the charger and battery pack. [0003] b) Electric vehicle chargers also cannot memorize the use process and working conditions of chargers and battery packs. When the car factory...

AI Technical Summary

Problems solved by technology

When this kind of problem occurs, the user will claim that the battery is damaged within the warranty period. Since there is no memory function, the car factory cannot provide evidence to prove that the battery is damaged prematurely because the user did not follow the use and maintenance requirements.

[0004] c) None of the chargers currently on the market have the function of a perpetual calendar, so it is impossible to record the specific working time of the charger or battery pack, and it is impossible to provide evidence to prove that the battery was damaged prematurely because the user did not follow the use and maintenance requirements

[0005] d) None of the electric vehicle chargers currently on the market can automatically balance the battery. It is necessary to manually set the balance charging

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