Safety monitoring device for power battery pack and monitoring method for safety monitoring device

Abstract

The invention provides a safety monitoring device for a power battery pack. The safety monitoring device comprises a shell body, a collision sensor, an angle sensor, a humidity sensor, a hydrogen sensor and a pressure sensor, the collision sensor, the angle sensor, the humidity sensor, the hydrogen sensor and the pressure sensor are installed on the battery pack, the shell body is internally provided with a main control panel, the main control panel comprises a power module, a PCB connector, a micro-control unit and a data conversion unit, the power module is connected with the micro-control unit, the collision sensor, the angle sensor, the humidity sensor, the hydrogen sensor, a fire detection warner and the pressure sensor are respectively connected with the PCB connector, the PCB connector is connected with the micro-control unit through the data conversion unit, the shell body is further provided with a smoke detector, and the smoke detector is connected with the micro-control unit. The invention further provides a monitoring method for the safety monitoring device for the power battery pack. The safety state of the power battery pack is detected in real time to fulfill the purposes of preventing the safety accidents like combustion or explosion of the battery pack and improving the safety guarantee.

Description

technical field [0001] The invention relates to the technical field of power battery packs, in particular to a safety monitoring device suitable for power battery packs and a monitoring method thereof. Background technique [0002] In order to solve the energy crisis and environmental crisis, the high development of the new energy industry has been globalized, especially the power battery is widely used in automobiles. With the continuous increase of the number of electric vehicles, more and more electric vehicles participate in the traffic, and the inevitable electric vehicle collisions and safety accidents also increase. Due to the high energy density of power batteries, high voltage platform, use of organic electrolytes, and specific positive and negative active materials, compared with traditional fuel vehicles, electric vehicles have many unique safety issues during collisions, such as power batteries Fire or even explosion, electrolyte leakage, high-voltage short circ...

AI Technical Summary

Problems solved by technology

[0003] At present, the safety protection functions of the battery management system of electric vehicles mainly include overcurrent protection, overcharge and overdischarge protection, overtemperature protection, etc.

Therefore, when the battery pack collides or flips over, it is very easy to cause serious accidents such as fire and burning caused by a high-voltage short circuit inside the battery pack.

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