Underbody protection apparatus to be arranged below a traction battery on the underbody of an at least semi-electrically driveable motor vehicle
View Patent ↗An underbody protection apparatus is arrangable below a traction battery on the underbody of an at least semi-electrically driveable motor vehicle. The apparatus includes an underbody protection plate for protecting the underbody of the motor vehicle, a gas-conducting structure arranged between the traction battery and the underbody protection plate and arranged on the underbody protection plate for conducting a gas exiting from the traction battery along the underbody protection plate. The gas-conducting structure is arranged on the traction battery such that a gas can be introduced into the gas-conducting structure via a degassing outlet of the traction battery. The gas-conducting structure includes a plurality of branching points for branched conduction of the gas exiting from the traction battery along the underbody protection plate. The gas-conducting structure includes at least one gas outlet opening for discharging the gas exiting from the traction battery and being conducted along the underbody protection plate.
1 . An underbody protection apparatus that is arrangeable below a traction battery on an underbody of an at least semi-electrically driveable motor vehicle, said underbody protection apparatus comprising:
an underbody protection plate for protecting the underbody of the motor vehicle,
a gas-conducting structure that is (i) arranged between the traction battery and the underbody protection plate, and (ii) arranged on the underbody protection plate for conducting a gas exiting from the traction battery along the underbody protection plate,
wherein the gas-conducting structure is arranged on the traction battery such that a gas can be introduced into the gas-conducting structure via a degassing outlet of the traction battery,
wherein the gas-conducting structure comprises a plurality of branching points for branched conduction of the gas exiting from the traction battery along the underbody protection plate,
wherein local reinforcement regions for gas deflection are arranged directly on the underbody protection plate, wherein one of the local reinforcement regions is arranged between two branching points of the plurality of branching points, and
wherein the gas-conducting structure comprises at least one gas outlet opening for discharging the gas exiting from the traction battery and being conducted along the underbody protection plate.
2 . The underbody protection apparatus according to claim 1 , wherein the underbody protection plate and/or the gas-conducting structure are formed from a heat-resistant material.
3 . The underbody protection apparatus according to claim 1 , wherein the gas-conducting structure is labyrinthine or meandering in form, and wherein the gas-conducting structure comprises at least four branching points for branched conduction of the gas exiting from the traction battery along the underbody protection plate.
4 . The underbody protection apparatus according to claim 1 , wherein the at least one gas outlet opening comprises a membrane and/or a valve for controlled discharge of a gas exiting from the traction battery, wherein the membrane and/or the valve is/are permeable for a gas only starting at a certain positive pressure.
5 . The underbody protection apparatus according to claim 1 , wherein the underbody protection plate is hollow for protection of the underbody, and wherein the underbody protection plate comprises a top structural layer, a bottom structural layer, and a support structure arranged between the top and bottom structural layers.
6 . The underbody protection apparatus according to claim 5 , wherein the support structure comprises an upper support layer, a lower support layer, as well as a honeycomb core layer arranged between the upper and lower support layers as a gas-conducting structure for conducting a gas exiting from the traction battery along the underbody protection plate, wherein a local weak point for gas entry is arranged within the underbody protection plate and directly on the degassing outlet of the traction battery.
7 . The underbody protection apparatus according to claim 1 , wherein the underbody protection plate and/or the gas-conducting structure are formed from an aluminum or iron material.
8 . A battery system arrangeable on the underbody of an at least semi-electrically driveable motor vehicle, said battery system comprising the underbody protection apparatus according to claim 1 as well as the traction battery arranged above the underbody protection apparatus for propelling the motor vehicle.
9 . A motor vehicle comprising the battery system according to claim 8 .
10 . The battery system according to claim 8 , further comprising an active and/or passive cooling apparatus that is arranged directly on the underbody protection plate of the underbody protection apparatus.
11 . An underbody protection apparatus that is arrangeable below a traction battery on an underbody of an at least semi-electrically driveable motor vehicle, said underbody protection apparatus comprising:
an underbody protection plate for protecting the underbody of the motor vehicle,
a gas-conducting structure that is (i) arranged between the traction battery and the underbody protection plate, and (ii) arranged on the underbody protection plate for conducting a gas exiting from the traction battery along the underbody protection plate, and
a space arranged within the gas-conducting structure that is configured so as to be substantially oxygen-free and/or air-free, wherein the space is filled with a non-combustible inert gas,
wherein the gas-conducting structure is arranged on the traction battery such that a gas can be introduced into the gas-conducting structure via a degassing outlet of the traction battery,
wherein the gas-conducting structure comprises a plurality of branching points for branched conduction of the gas exiting from the traction battery along the underbody protection plate, and
wherein the gas-conducting structure comprises at least one gas outlet opening for discharging the gas exiting from the traction battery and being conducted along the underbody protection plate.