A battery thermal runaway detection system for new energy vehicles
A new energy vehicle, thermal runaway technology, applied in battery/fuel cell control devices, electric vehicles, measuring electricity, etc., can solve problems such as false alarms, inability to determine the exact time of open flames, missing the best time to start cooling/fire extinguishing devices, etc. , to achieve the effect of protecting safety
Active Publication Date: 2020-09-11
浙江中吕进出口有限公司
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[0005] However, there are some problems in the above method: the approximate time range of combustion caused by thermal runaway can only be determined through data analysis, the exact time when the open flame appears cannot be determined, and the best time to start the cooling / fire extinguishing device is missed; Unstability during the process will cause false alarms, which is also a technical problem that needs to be solved urgently
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[0025] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0026] Such as figure 1 As shown, a battery thermal runaway detection system for a new energy vehicle described in this embodiment includes an alarm 6, a protective device 5, and a thermal runaway monitoring system installed inside the battery box. The thermal runaway monitoring system includes: data acquisition device, which is used to collect the thermal runaway parameters of each detection node inside the battery box, the data collection device includes a gas sensor 2, a temperature sensor 3 and a flame sensor 4; a processor 1, which is connected with an alarm 6 and a gas sensor 2 1. The temperature sensor 3 is connected to the flame sensor 4; the processor 1 jud...
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The invention discloses a battery thermal runaway detection system of a new energy vehicle, comprises an alarm, a protective device and a thermal runaway monitoring system arranged inside the batterybox. The thermal runaway monitoring system comprises a data acquisition device for acquiring thermal runaway parameters of each detection node inside the battery box, wherein the data acquisition device comprises a gas sensor, a temperature sensor and a flame sensor; A processor connected to an alarm, a gas sensor, a temperature sensor and a flame sensor, respectively; The processor judges whetherto turn on the protective device according to the thermal runaway parameter. A preheat detection circuit connected between the gas sensor and the processor.
Description
technical field [0001] The invention belongs to the technical field of automobile battery monitoring, and in particular relates to a battery thermal runaway detection system of a new energy automobile. Background technique [0002] The safety accidents of new energy electric vehicles mainly come from the combustion or explosion caused by the thermal runaway of batteries. As the energy storage unit of electric vehicles, if the energy is released through combustion or explosion, the power is extremely powerful, which can easily cause casualties. [0003] If the heat is effectively dissipated or guided in the early stage of thermal runaway, the thermal runaway of the battery can be avoided, which can be proved in related research and experiments. Therefore, an economical, practical, and effective detection system is needed to detect the thermal runaway of the battery at an early stage and to suppress the thermal runaway or fire control of the battery when necessary, and require...
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IPC IPC(8): B60L58/24G01R31/392G01D21/02
CPCG01D21/02G01R31/3648Y02T10/70
Inventor 刘增彬
Owner 浙江中吕进出口有限公司