battery management system

A battery management system and battery technology, applied in battery disconnect circuits, battery circuit devices, current collectors, etc., can solve the problems of battery dead, unrecoverable, static power consumption, etc. death effect

Active Publication Date: 2021-11-16
长沙优力电驱动系统有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the power supply of the battery management system is directly taken from the battery, as long as the battery management system is in the working state, there will be static power consumption. When the battery is consumed by the static power consumption of the battery management system for a long time, the battery will be consumed and cause Unrecoverable conditions, especially when the battery is already low

Method used

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0024] refer to figure 1 , in one embodiment, a battery management system is provided, including a power module 10, a main control unit 20 and a basic working module 30, the power module 10 includes a step-down unit 11, a first voltage dividing unit 12, a second voltage dividing unit A unit 13 , a voltage comparison switch unit 14 and an output unit 15 , the voltage comparison switch unit includes a first input terminal, a second input terminal and an output terminal. Wherein, the first connection end and the second connection end are respectively one of an input end and ...

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Abstract

This application relates to a battery management system, including a power module, a main control unit and a basic working module, the power module includes a step-down unit, a voltage comparison switch unit, a first voltage divider unit, a second voltage divider unit and an output unit; The unit is connected to the battery, and is connected to the first input terminal of the voltage comparison switch unit through the first voltage dividing unit, the second input terminal of the voltage comparison switching unit is connected to the battery through the second voltage dividing unit, and the output terminal of the voltage comparison switching unit is connected to the output unit , the output unit is connected to the main control unit and the basic working module; the voltage comparison switch unit is turned on when the voltage at the second input terminal is greater than the voltage at the first input terminal, so that the output unit outputs the voltage to the main control unit and the basic working module, and the voltage comparison switch unit When the voltage at the second input terminal is lower than the voltage at the first input terminal, it is turned off, so that the output unit has no output. By adopting the application, the power consumption can be reduced, and the power consumption of the battery can be avoided.

Description

technical field [0001] The present application relates to the technical field of power electronics, in particular to a battery management system. Background technique [0002] In the current field of electronic technology, the battery management system is a system for safety protection and charge and discharge management of the battery pack. It generally includes a main control unit, a power module and other basic working modules, such as a module for battery information detection, Module for charge and discharge control. The power supply module is connected to the direct current output by the battery, and after processing such as step-down, the direct current is output to other working modules such as the main control unit for power supply. [0003] The traditional power supply module generally outputs the input voltage to the working module of the battery management system after being regulated, so that the output voltage meets the working requirements of the battery mana...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H02J7/00
CPCH02J2007/0067H02J7/0031H02J7/0063
Inventor陈安平王晓闽刘政胡孟贤
Owner长沙优力电驱动系统有限公司