Charging management system and charging holder using same

Abstract

The invention provides a charging management system. The charging management system comprises a first signal output interface, a second signal output interface, a third signal output interface, and a controller which is electrically connected with the first signal output interface, the second signal output interface and the third signal output interface. The charging management system has two operation modes. The first operation mode is to carry out combination control on a charger by characterizing control signals of first charge current and characterizing control signals of second discharge current so as to realize the functions of switching fast charging, trickle charging and stopping charging according to the condition of a battery; and the second operation mode is to charge the charger in a variable-current charging mode by characterizing the control signals of variable third charge current so as to reach higher charging efficiency. The charging management system can be arranged in the charger in different modes, so that a battery system with a battery management system can be effectively charged by the charger in different modes.

Description

technical field [0001] The invention belongs to the field of batteries, and in particular relates to a charging management system for controlling battery charging and a charger using the charging management system. Background technique [0002] The battery management system is usually responsible for the calculation of battery power in the battery pack, battery protection, power balance control between batteries, and signal communication inside and outside the battery management system. In the prior art, products that generally use batteries need to be controlled with a battery management system. [0003] Because it is difficult to ensure complete uniformity in the battery manufacturing process, there will be differences in charging or discharging characteristics between battery cells connected in series. Therefore, when using a battery pack of battery cells connected in series, there will be such a problem: when charging, even if some battery cells are overcharged in the s...

AI Technical Summary

Problems solved by technology

Therefore, when using a battery pack of battery cells connected in series, there will be such a problem: when charging, even if some battery cells are overcharged in the same battery pack, there are still some battery cells that have not yet reached saturation; , in the same battery pack, some battery cells have not been fully discharged, but some battery cells are still over-discharged

[0007] However, in a battery management system with passive battery balancing, since there is often no communication between it and the external charger, a charging mode set by the battery management system is often not applicable to a charger using another charging mode

[0008] Furthermore, because the focus of charger technology is different from that of battery management system technology, general battery manufacturers do not produce their own chargers, and charger suppliers cannot flexibly meet the different charging functions required by battery management systems.

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