Abstract: A motor vehicle includes at least one battery pack for a motor vehicle. The battery pack includes a housing defining an internal cavity, rechargeable electric battery cells arranged in the internal cavity, and a fire extinguishing device housed in the internal cavity and having an elongated extinguishing pipe closed at both longitudinal ends. The extinguishing fluid includes a mixture of fluid and powder, and the housing includes at least one gas and/or smoke evacuation port, the at least one port being equipped with a movable flap.

Abstract: An appliance (10) for drying and/or washing laundry includes an autonomous fire extinction device (20). The fire extinction device has pipe (26) with an elongate shape and closed at both its longitudinal ends (26x). The pipe includes a fusible thermoplastic wall defining an internal space. The pipe is thermoformed to give it a particular shape in the unconstrained free state corresponding to its mounted position inside the enclosure (12). An extinguishing fluid (29) is inside the space, and is configured to be released by fusion of the pipe wall (26) under the effect of heat produced by a fire or an incipient fire.

Abstract: A fire extinguishing device is for a motor vehicle. The fire extinguishing device includes an internal cavity containing a pressurized fire extinguishing fluid. The cavity is delimited by a wall, the wall having at least one barrier layer (b) containing a semi-aromatic polyamide composition (B).