A battery pack device with fire extinguishing function using a fire detector and its control method

Abstract

The invention discloses a battery pack device with a fire extinguishing function using a fire detection tube and a control method thereof, including a power battery system structural part and a power battery thermal safety system; the power battery system structural part includes a battery box and a battery module and installation of fixed standard parts; the power battery thermal safety system includes a power battery thermal safety fire source positioning system, a power battery thermal safety fire level monitoring system, and a power battery thermal safety fire extinguishing system; the power battery thermal safety fire source positioning system is used for Locate the fire module of the power battery system; the power battery thermal safety fire level monitoring system is used to collect the temperature and smoke concentration in the power battery box in real time, and monitor the power battery system fire level; the power battery thermal safety fire extinguishing system It is used to adjust the fire extinguishing strategy in real time according to the corresponding fire level. The invention can carry out precise fire extinguishing on thermal runaway of batteries, realize effective control, and has high practical value.

Description

technical field [0001] The invention relates to the technical field of electric vehicle power batteries, in particular to a battery pack device with a fire extinguishing function using a fire detection tube and a control method thereof. Background technique [0002] As the world's petrochemical energy becomes more and more scarce, people pay more and more attention to the development of new energy vehicles, and pure electric vehicles are a general direction, and power batteries are the most important component that affects the mileage of pure electric vehicles. Today's The energy density of the power battery system is getting higher and higher, but its heat production is also increasing, which leads to a decrease in safety. In recent years, pure electric vehicle fires and spontaneous combustion incidents have occurred frequently, and the demand for efficient and accurate power battery thermal runaway suppression technology is also increasing. [0003] After the existing bat...

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a battery pack structure with a fire extinguishing function using a fire detector and its control method, which solves the problem of low fire extinguishing efficiency after the battery modules are packaged. Solved the problem of battery pack installation and arrangement on the whole vehicle

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