Intelligent control system for enabling lithium ion storage battery pack to work safely and reliably

Abstract

The invention discloses an intelligent control system for enabling a lithium ion storage battery pack to work safely and reliably. The system comprises a temperature acquisition circuit module, a heating control circuit module, a cooling control circuit module, a single-chip microcomputer and a charging and discharging protection circuit module, and the single-chip microcomputer is connected withthe temperature acquisition circuit module, the heating control circuit module, the cooling control circuit module and the charging and discharging protection circuit module; the temperature acquisition circuit module is arranged on the lithium ion storage battery pack, and is used for acquiring temperature information of the lithium ion storage battery pack and sending the temperature informationto the single chip microcomputer; and the single chip microcomputer is used for receiving the temperature information of the lithium ion storage battery pack in real time, and correspondingly executing different preset control operations according to whether the state of the lithium ion storage battery pack is a charging state or a discharging state. According to the invention, the potential safety hazard to the lithium ion storage battery pack due to charging or discharging of the lithium ion storage battery pack under the condition of poor environment temperature at present can be solved, and the service life of the lithium ion storage battery pack is prolonged.

Description

technical field [0001] The invention relates to the technical field of battery group management, in particular to an intelligent control system for making lithium-ion battery groups work safely and reliably. Background technique [0002] At present, lithium-ion batteries have the advantages of high voltage, high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices, such as mobile phones, digital cameras and laptop computers, but also widely used in electric Large and medium-sized electric equipment such as automobiles, electric bicycles, and electric tools. [0003] For lithium-ion battery packs, the charging performance and discharge performance can have a great relationship with the ambient temperature, and the protection parameters of the protection boards of most lithium-ion battery packs are fixed at present, and at the critical point of protection Charging and discharging the lithium-ion battery pack wi...

AI Technical Summary

Problems solved by technology

[0003] For lithium-ion battery packs, the charging performance and discharge performance can have a great relationship with the ambient temperature, and the protection parameters of the protection boards of most lithium-ion battery packs are fixed at present, and at the critical point of protection Charging and discharging the lithium-ion battery pack will have potential safety hazards and will also reduce the service life of the lithium-ion battery pack

[0004] When the lithium-ion battery pack is discharged at low temperature and high current, the voltage of the lithium-ion battery pack will drop rapidly at the beginning, which will trigger the over-discharge protection of the lithium-ion battery pack, so that the lithium-ion battery pack cannot be discharged, so the current The method is to set the over-discharge protection value relatively low, and it is fixed, so that when the lithium-ion battery is discharged at normal temperature or high temperature, there will be a greater safety hazard to the lithium-ion battery pack, and it will also reduce its over-discharge. service life

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