Motor vehicle
A motor vehicle has an electric drive unit, an electrical energy reservoir, and a degassing device. The electrical energy reservoir includes a housing having an internal space and having at least one battery cell arranged therein. The degassing device includes at least one degassing channel, which is fluidly connected to the internal space of the electrical energy reservoir and to the external environment. The at least one degassing channel is formed by channel walls defining the path of the degassing channel. The channel walls are configured such the degassing channel has a meandering path formed due to a plurality of channel deflections.
1 . A motor vehicle comprising:
an electric drive unit;
an electrical energy reservoir comprising a housing having an internal space and at least one battery cell arranged therein; and
a degassing device comprising at least one degassing channel, which is fluidly connected to the internal space of the electrical energy reservoir and to the external environment,
wherein the at least one degassing channel is formed by channel walls defining a path of the degassing channel, wherein the channel walls are configured such the degassing channel has a meandering path formed due to a plurality of channel deflection openings,
wherein the channel walls comprise first and second boundary walls that at least partially delimit the degassing channel and first and second stepped walls extending into the degassing channel, wherein the first stepped wall extends perpendicularly from the first boundary wall and the second stepped wall extends perpendicularly from the second boundary wall,
wherein a receiving pocket having a rectangular shape is formed at an intersection of a step of the first stepped wall and the first boundary wall,
wherein the receiving pocket faces an inlet of the degassing channel,
wherein one of the deflection openings is disposed between a free end of said first stepped wall and the second boundary wall.
2 . The motor vehicle according to claim 1 , wherein the electrical energy reservoir is configured as either a floor-integrated electrical energy reservoir or an underbody battery, and the motor vehicle further comprises an underride protection plate arranged below the electrical energy reservoir.
3 . The motor vehicle according to claim 2 , wherein the degassing device is integrated into the underride protection plate.
4 . The motor vehicle according to claim 3 , wherein the underride protection plate forms or comprises the at least one degassing channel.
5 . The motor vehicle according to claim 3 , wherein the underride protection plate includes one or more layers, wherein, at least an uppermost layer of the underride protection plate faces the electrical energy reservoir and forms or comprises the at least one degassing channel.
6 . The motor vehicle according to claim 5 , wherein the underride protection plate includes three layers, wherein two outer layers of the three layers of the underride protection plate are substantially pressure-stable, and a middle layer of the three layers is locate between the two outer layers and is a compressible layer.
7 . The motor vehicle according to claim 6 , wherein the two outer layers are formed from a plastic fiber composite material and the middle layer is formed from a foam material.
8 . The motor vehicle according to claim 3 , wherein the underride protection plate is equipped with at least one sealing element in order to form the degassing channel, and wherein the channel walls form the at least one degassing channel by means of the sealing element.
9 . The motor vehicle according to claim 2 , wherein the first and second boundary walls and the first and second stepped walls are disposed on a top surface of the underride protection plate.
10 . The motor vehicle according to claim 9 , wherein the top surface of the underride protection plate is concave, and wherein the concave top surface forms a lower surface of the degassing channel.
11 . The motor vehicle according to claim 1 , wherein said one of the deflection openings is also disposed between the first and second stepped walls.
12 . The motor vehicle according to claim 1 , further comprising third and fourth boundary walls that are connected to the first and second boundary walls to form a bounded rectangular-shaped interior space, which interior space constitutes the degassing channel.
13 . The motor vehicle according to claim 1 , wherein a second receiving pocket having a rectangular shape is formed at an intersection of a step of the second stepped wall and the second boundary wall.
14 . The motor vehicle according to claim 13 , wherein the step of the receiving pocket and the step of the second receiving pocket both face in a same direction toward the inlet of the degassing channel.
15 . The motor vehicle according to claim 1 , wherein another one of the deflection openings is disposed between a free end of said second stepped wall and the first boundary wall.
16 . The motor vehicle according to claim 1 , wherein the first and second boundary walls are straight walls that are oriented parallel to one another.
17 . The motor vehicle according to claim 1 , wherein the step of the first stepped wall is fixed to the first boundary wall.
18 . The motor vehicle according to claim 1 , further comprising a third stepped wall that extends perpendicularly from the first boundary wall and is arranged in parallel to the first stepped wall.
19 . The motor vehicle according to claim 18 , wherein the steps of the first, second and third stepped walls all face in a same direction toward the inlet of the degassing channel.