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Battery management system

A technology of battery management system and battery pack, which is applied in battery circuit devices, current collectors, electric vehicles, etc. It can solve the problems of single and single detection signal, and the inability to fully realize the effective monitoring of battery pack performance, so as to achieve fast transmission and ensure work Effect of Stability, Overtemperature and Short Circuit Protection

Inactive Publication Date: 2015-06-17
巫立斌
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The detection signal of this method is relatively single, and because the judgment of the performance index of the entire battery pack is too single based on the temperature parameters, it is impossible to fully realize the effective monitoring of the performance of the battery pack, and it is impossible to achieve a balance for the single battery

Method used

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  • Battery management system

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Embodiment Construction

[0011] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0012] As a specific example, such as figure 1 As shown, a battery management system of the present invention includes a main control unit 1, a DCDC converter 2, a temperature detection unit 3, a current detection unit 4, a voltage detection unit 5, a CAN bus interface 6, a data memory 7, a fan 8, Voltage equalization circuit 9, battery protection circuit 10 and wireless communication module 11, the DCDC converter 2 converts the voltage of the battery pack into the working voltage of the main control unit 1, the temperature detection unit 3, the current detection unit 4 and the voltage detection unit 5 Monitor the temperature value, current value and voltage value of the battery pack in real time and send them to the main control unit 1 through the CAN bus interface 6, the main control unit 1 stores the temperature value, current value and voltage va...

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Abstract

The invention relates to the technical field of battery management of communication energy-storage products and particularly relates to a battery management system. The battery management system is characterized in that a DCDC converter converts the voltage of a battery pack into the working voltage of a main control unit; a temperature detection unit, a current detection unit and a voltage detection unit monitor the temperature value, the current value and the voltage value of the battery pack in real time and send the temperature value, the current value and the voltage value of the battery pack to the main control unit by a CAN (Controller Area Network) bus interface; and the main control unit receives commands issued by a monitoring center, controls a fan, a voltage equalizing circuit and a battery protecting circuit so as to realize adjustment for the temperature of the battery pack and equalizing the voltage of a single battery and protect over charging, over discharging, over current, over temperature and short circuit. The battery management system has the advantage that the damage and service-life shortening of the battery pack under the extreme environment can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of battery management of communication energy storage products, in particular to a battery management system. Background technique [0002] With the continuous development of communication technology, the application of communication energy storage products has been widely promoted, and most communication energy storage products use lithium-ion battery packs. Protection, over-temperature protection, short-circuit protection and other extreme conditions are easy to shorten and damage the lifespan. Therefore, the battery management system used for real-time monitoring and management of the battery pack came into being, and it involves 240V high-voltage DC for Internet data centers and communication base stations. In the battery management system, most of the current methods are to detect the battery temperature, and then set up the corresponding temperature control device. When the temperature exceeds the temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
Inventor 巫立斌
Owner 巫立斌
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