Battery management system and power supply system

Abstract

The invention discloses a battery management system and a power supply system. The battery management system comprises a detection module, a control module, an anti-backflow module, an interface module and a discharge switch module, wherein the interface module comprises a battery interface, a charging interface and a load interface, and the detection module obtains all parameter information passing through the interface module and sends the parameter information to the control module; the battery interface is connected with the charging interface through the anti-backflow module; the battery interface is connected with the load interface through the discharge switch module; the charging interface is directly connected with the load interface; and the discharge switch module receives the control information of the control module and responds. The control module is used for controlling the on-off states of the anti-backflow module and the discharge switch module according to the parameter information acquired by the detection module, so that the charge and discharge states of a battery pack are effectively controlled, and reliable on-off between the battery interface and the load interface and between the battery interface and the charge interface is ensured.

Description

technical field [0001] The invention relates to the field of power supply for navigation aids, in particular to a battery management system and a power supply system. Background technique [0002] Navigation aid lights are used in military permanent airports, field airports, civil airports and temporary emergency runways. As a navigation aid light support, they can guide aircraft to take off or land under special circumstances. They are indispensable equipment for night flight emergency support in modern airports. [0003] At present, the power supply of the navigation aids mostly adopts the energy storage battery pack. Due to the limited electric energy of the energy storage battery pack, it needs to be charged externally. In the process of battery charging, the power supply guarantee of the navigation aid light should also be considered. Therefore, the battery management device usually has an external charging port directly connected to the power supply end of the navigati...

AI Technical Summary

Problems solved by technology

[0003] At present, the power supply of the navigation light mostly adopts the energy storage battery pack. Due to the limited power of the energy storage battery pack, it needs to be charged externally. In the process of battery charging, the power supply guarantee of the navigation light should also be considered, so the battery management device is usually equipped with an external charging port directly connected to the power supply end of the navigation light, so that there is no charger connected to the external charging port At this time, the battery pack will directly supply power to the navigation lights through the connection path with the external charging port. This power supply path cannot be turned off, which will easily cause the battery to continue to discharge, resulting in waste of electric energy and affecting the battery life.

Images