Battery pack fire extinguishing system and 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 small space ratio and low cost

Active Publication Date: 2021-10-22
VOYAH AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Battery pack fire extinguishing system and method and vehicle
  • Battery pack fire extinguishing system and method and vehicle
  • Battery pack fire extinguishing system and method and vehicle

Examples

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Embodiment Construction

[0029] In the battery pack fire extinguishing system, method and vehicle provided in the embodiments of the present application, when the battery pack is thermally out of control, the fire extinguishing agent injection port will pop out of the vehicle, and the staff can eject the fire extinguishing agent from the fire extinguishing agent injection port 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, taking up a small space and low cost.

[0030] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] It should be noted that the fire extinguishing agent mentioned in the embodiments of the present application may be water, or any fire extinguishi...

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PUM

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Abstract

The invention discloses a battery pack fire extinguishing system and method and a vehicle. The system comprises a fire extinguishing controller, a fire extinguishing agent injection valve and a fire extinguishing channel arranged in a battery pack; the fire extinguishing agent injection valve comprises a pop-up pipeline and a control part used for controlling the pop-up pipeline to pop up; the control part is connected with the fire extinguishing controller; a first end of the pop-up pipeline serves as a fire extinguishing agent injection port and is used for injecting a fire extinguishing agent into the battery pack from the outside of the vehicle, and a second end of the pop-up pipeline communicates with an inlet of the fire extinguishing channel in the battery pack; and the fire extinguishing controller is used for triggering the control part to pop the first end of the pop-up pipeline out of the vehicle when receiving a battery pack thermal runaway signal. According to the battery pack fire extinguishing system, accurate and efficient fire extinguishing of the battery pack can be achieved under the conditions that the weight of the vehicle is not increased too much, the space proportion is small, and the cost is low.

Description

technical field [0001] The invention relates to the field of battery application technology, in particular to a battery pack fire extinguishing system, method and vehicle. Background technique [0002] Lithium batteries are widely used in new energy vehicles. As the demand for cruising range increases, the total energy and energy density of lithium batteries for new energy vehicles increase rapidly, and the safety issues of lithium batteries are also becoming 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 very fast, while the heat dissipation rate of the lithium battery is slow, resulting in a large amount of heat accumulated 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 can quickly ignite ot...

Claims

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Application Information

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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
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