Battery box fire hazard early warning data logger

Abstract

A battery box fire hazard early warning data logger disclosed by the present invention comprises a core control module, an SD card, a hardware watchdog, a power supply module, a battery, a switch, a first CAN interface and a second CAN interface. The core control module is connected with the SD card, the hardware watchdog, the power supply module, the battery, the switch, the first CAN interface and the second CAN interface separately, the first CAN interface is connected with a detector used for the fire hazard early warning, and the second CAN interface is connected with an automobile instrument. According to the present invention the detector analyzes and determines automatically according to the sensor data, and the alarm level of a battery box is given, is contained in the alarm information and is uploaded to the automobile instrument, so that a driver can check the uploaded data specifically via the alarm information, the driving hidden dangers caused by that the driver pays toomuch attention to the uploaded data are conducive to being avoided, and the potential safety hazards caused by that the driver omits to check the important information are also conducive to being avoided.

Description

technical field [0001] The invention relates to the technical field of automobile batteries, in particular to a battery box fire early warning data recorder. Background technique [0002] With the continuous development of new energy electric vehicles, the safety of power lithium batteries is becoming more and more important. The Ministry of Industry and Information Technology's "Technical Conditions for Safety of Electric Buses": "4.3.5 The cabin of the rechargeable energy storage system shall be equipped with an automatic fire detection and alarm system, and the alarm system shall provide the driver with sound or light alarm signals in the driving area". On the one hand, due to the complex environment of the battery box of new energy vehicles, there are many types of interfering gases and high concentrations; and electric vehicles driving on the road will be interfered by various vehicle exhausts and factory industrial gases to varying degrees, which will cause damage to t...

AI Technical Summary

Problems solved by technology

On the one hand, due to the complex environment of the battery box of new energy vehicles, there are many types of interfering gases and high concentrations; and electric vehicles driving on the road will be interfered by various vehicle exhausts and factory industrial gases to varying degrees, which will cause damage to the battery box fire warning system. False alarms and even mistriggering of the fire extinguisher caused panic to passengers; on the other hand, short circuit and thermal runaway of the lithium battery caused the battery to explode and catch fire quickly, and the change process of smoke, characteristic gas, temperature, flame, etc. was complicated, giving the alarm system an early fire warning Cause a certain degree of difficulty, even cause false positives

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