Electromobile storage battery remote charging device

Abstract

The present invention discloses an electromobile storage battery remote charging device composed of a voltage data collecting and transmitting device at the electromobile storage battery terminal and a charger; the voltage of the electromobile storage battery terminal is subject to voltage differentiation by a voltage differentiation circuit, the DC voltage at two ends of a voltage differentiation resistor is 1V to be as an input signal of a voltage follower, the output of the voltage follower passes through an amplitude limiting circuit to be connected with an analog-to-digital converter of a singlechip A, and the single chip A, is connected with a wireless communication module A. The charger comprises an output voltage feedback circuit, a digital potentiometer, a single chip B and a wireless receiver module; voltage to earth of the connection point between R5 and R4 of the voltage feedback circuit is fixed direct current 2.5V reference voltage; the resistance output end of the digital potentiometer is earthed and connected with R4 in parallel; the digital potentiometer is connected with the single chip B which is connected with the wireless receiver module B. The device of the invention has simple structure and low cost, and effectively solves the remote charging problem of electromobile storage batteries.

Description

technical field [0001] The invention relates to a device for long-distance charging of electric vehicle storage batteries. Background technique [0002] Because the accumulator of electric vehicle (as electric bicycle) is heavy and inconvenient to carry, it is especially difficult to charge high-rise users. At present, high-rise users mainly adopt the solution of introducing their own 220V AC power to the socket on the first floor to charge electric bicycles, resulting in the direct exposure of the 220V AC socket, which poses a great potential safety hazard and power theft. [0003] If the method of prolonging the length of the wire at the DC voltage output terminal is used, and the original car's supporting charger is directly used for charging, there will be a problem that the DC line loss and voltage drop are large and normal charging cannot be performed. [0004] Therefore, the current electric vehicle battery charger fails to safely and effectively solve the problem of...

AI Technical Summary

Problems solved by technology

[0002] Charging for high-rise users is especially difficult due to the bulky batteries of electric vehicles (such as electric bicycles) and inconvenient portability

At present, high-rise users mainly adopt the scheme of introducing their own 220V AC power to the socket on the first floor to charge electric bicycles, resulting in the direct exposure of the 220V AC socket to the outside, which has great potential safety and electricity theft

[0003] If the method of extending the length of the wire at the DC voltage output terminal is adopted, and the charger supplied with the original car is directly used for charging, there will be a problem that the DC line loss and voltage drop are large and normal charging cannot be performed.

[0004] Therefore, the current electric vehicle battery charger fails to safely and effectively solve the problem of long-distance charging of electric vehicle batteries

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