Battery charging-discharging apparatus and electric bicycle

Abstract

The invention provides a battery charging-discharging apparatus and an electric bicycle. According to the battery charging-discharging apparatus, a first charging port is connected with a first MOS transistor, a second MOS transistor and a first resistor in series, wherein one ends of the first charging port and the first resistor are connected with a positive electrode and a negative electrode of a battery respectively to form a first charging loop; a second resistor is connected with a fast recovery diode in series and then connected with the first MOS transistor in parallel; and a control module is connected with the control ends of the first MOS transistor and the second MOS transistor and used for controlling the on or off of the first MOS transistor and the second MOS transistor. After charging is completed, the first charging loop enters a low-power-consumption state, so that battery electric energy loss is avoided in the storage process of the electric vehicle, and the service life of the battery is effectively prolonged; and in addition, detaching of the battery is avoided, damage to a battery interface caused by repeated battery detaching can be prevented, and storage of the electric bicycle becomes more convenient.

Description

technical field [0001] The invention relates to the technical field of electric bicycles, in particular to a battery charging and discharging device and an electric bicycle. Background technique [0002] At present, in related technologies, when the electric bicycle is not in use, the battery needs to be taken out to ensure that the battery can be stored for a longer time, because if the battery is not taken out, the battery has not completed the shutdown output, and there is low power consumption current discharge, It has seriously affected the service life of the battery; for public rental electric bicycles, the free disassembly of electric vehicle batteries is very detrimental to the safety of electric vehicle batteries. The batteries are often taken out and installed by a group of non-professionals, and the entire contact point of the battery is also damaged. It is easy to be damaged, which reduces the service life of the battery; and the charging ports of electric bicyc...

AI Technical Summary

Problems solved by technology

[0002] At present, in related technologies, when the electric bicycle is not in use, the battery needs to be taken out to ensure that the battery can be stored for a longer time, because if the battery is not taken out, the battery has not completed the shutdown output, and there is low power consumption current discharge, It has seriously affected the service life of the battery; for public rental electric bicycles, the free disassembly of electric vehicle batteries is very detrimental to the safety of electric vehicle batteries. The batteries are often taken out and installed by a group of non-professionals, and the entire contact point of the battery is also damaged. It is easy to be damaged, which reduces the service life of the battery; and the charging port of the electric bicycle has voltage, and the charging port is exposed all year round, which is very unsafe

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