A battery pack fire extinguishing system, method and vehicle
A fire extinguishing system and battery pack technology, applied in vehicle components, electric vehicles, vehicle energy storage, etc., can solve the problems of casualties, vehicle property loss, blockage of escape routes, etc., and achieve the effect of low cost and small space ratio
Active Publication Date: 2022-07-12
VOYAH AUTOMOBILE TECH CO LTD
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Problems solved by technology
When the battery enters into thermal runaway, flammable and toxic gases will be emitted or even flames will be emitted, which may quickly ignite other combustibles, causing damage to vehicles and other property, or block the escape route and cause casualties
Method used
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[0029] In the battery pack fire extinguishing system, method and vehicle provided by the embodiments of the present application, when the battery pack is thermally out of control, the fire extinguishing agent injection port will be ejected outside the vehicle, and the staff can eject the fire extinguishing agent from the fire extinguishing agent injection port ejected outside the vehicle body. It is directly injected into the battery pack, so as to achieve accurate and efficient fire extinguishing of the battery pack without excessively increasing the weight of the vehicle, with a small space ratio and low cost.
[0030] In order to better understand the above technical solutions, the above technical solutions will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0031] It should be noted that the fire extinguishing agent mentioned in the embodiments of the present application may be water, or may be any fire extinguishing sol...
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The invention discloses a battery pack fire extinguishing system, method and vehicle. The system includes a fire extinguishing controller, a fire extinguishing agent injection valve and a fire extinguishing channel arranged in the battery pack. The fire extinguishing agent injection valve includes an ejection pipe and a pipe for controlling the ejection. The ejected control part, the control part is connected with the fire extinguishing controller. The first end of the ejection pipe is used as a fire extinguishing agent injection port for injecting fire extinguishing agent into the battery pack from the outside of the vehicle, and the second end of the ejection pipe is communicated with the inlet of the fire extinguishing passage in the battery pack. The fire extinguishing controller is used for triggering the control part to eject the first end of the ejection pipe to the outside of the vehicle upon receiving the thermal runaway signal of the battery pack. The battery pack fire extinguishing system provided by the present application can achieve accurate and efficient fire extinguishing of the battery pack without excessively increasing the weight of the vehicle, with a small space ratio and low cost.
Description
technical field [0001] The present invention relates to the technical field of battery applications, in particular to a battery pack fire extinguishing system, method and vehicle. Background technique [0002] Lithium batteries are widely used in new energy vehicles. With the increasing demand for cruising range, the total energy and energy density of lithium batteries for new energy vehicles have grown rapidly, and the safety issues of lithium batteries have become more and more prominent, especially lithium batteries. Thermal runaway problem. The so-called thermal runaway is that due to various factors inside the lithium battery, the heat generation rate is fast, while the heat dissipation rate of the lithium battery is slow, resulting in a large amount of heat accumulating inside the lithium battery, which induces a series of side reactions. When the battery enters thermal runaway, it will discharge flammable and toxic gases or even spray flames, which will quickly ignit...
Claims
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IPC IPC(8): A62C3/07A62C3/16A62C31/02A62C31/28A62C37/40
CPCA62C3/07A62C3/16A62C31/02A62C31/28A62C37/40Y02T10/70
Inventor 刘凯刘文浩黄敏刘振勇沈健
Owner VOYAH AUTOMOBILE TECH CO LTD