Liquid crystal display device for battery power in energy storage system

Abstract

The invention relates to a battery electric quantity liquid crystal display device of an energy storage system. The battery electric quantity liquid crystal display device of the energy storage system comprises a first power-switching circuit, a second power-switching circuit, an electric quantity managing module and a micro-control unit. The first power-switching circuit is used for supplying electricity to the micro-control unit and a liquid crystal display drive module. The second power-switching circuit is used for supplying electricity to the electric quantity managing module. The electric quantity managing module is connected with a battery and used for detecting voltage of the battery, detecting and calculating battery residual capacity and detecting environment temperature. The electric quantity managing module is connected with the micro-control unit and is used for sending the detected battery voltage information, the battery residual capacity information and the environment temperature information to the micro-control unit. The micro-control unit is connected with the liquid crystal display drive module and is used for receiving the battery voltage information, the battery residual capacity information and the environment temperature information and converting the information to signals which can be recognized by the liquid crystal display drive module. After the signals are written into the liquid crystal display drive module, a liquid crystal display can be driven to display the battery voltage, the battery residual capacity and the environment temperature. The battery electric quantity liquid crystal display device of the energy storage system can accurately calculate the real-time battery residual capacity within the scope of service life of the overall battery group.

Description

technical field [0001] The invention relates to an electric energy storage system, in particular to a battery power liquid crystal display device of the energy storage system. Background technique [0002] Traditional energy storage systems generally calculate the remaining power of the battery based on the voltage value of the battery, and indicate it through LED indicators, for example, 5 LEDs are used to indicate, one LED is on to indicate that the remaining power is 20%, and two lights are on to indicate that the remaining 40% ......, 5 light means the power is 100%. [0003] However, it is impossible to calculate the remaining power of the battery pack only based on the voltage value of the battery, and it is impossible to accurately calculate the remaining power of the battery pack throughout the life of the battery pack. Therefore, after the battery pack has run for several cycles, the battery power display is obviously inaccurate . Contents of the invention [00...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of inaccurate display of remaining battery capacity, it is necessary to provide a liquid crystal display device for battery power in an energy storage system, which can accurately display the remaining capacity of the battery.

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