BATTERY FOR A DRIVE OF A MOTOR VEHICLE

Abstract

A battery for a drive of a motor vehicle includes at least one energy reservoir, a housing, an interior, and a diffuser element. The housing surrounds the interior and the energy reservoir is arranged in the interior. The diffuser element is attached to an exterior of the housing. The diffuser element includes a plurality of diffuser outlets, a plurality of side faces, and a head face. The side faces are arranged between the housing and the head face. A housing outlet is arranged in the housing, which outlet is configured so as to discharge gas out of the interior in an outgoing direction to the diffuser element. The outgoing direction is directed from the housing outlet towards the head face. The diffuser outlets are arranged on the side faces.

Claims

1. A battery for a drive of a motor vehicle, said battery comprising: at least one energy reservoir; a housing defining an interior, wherein the housing surrounds the interior and the energy reservoir is arranged in the interior; and a diffuser element including a plurality of diffuser outlets, a plurality of side faces, and a head face, wherein the side faces are arranged between the housing and the head face, wherein the diffuser element is attached to an exterior of the housing, wherein a housing outlet is arranged in the housing, which outlet is configured so as to discharge gas out of the interior in an outgoing direction to the diffuser element, wherein the outgoing direction is directed from the housing outlet towards the head face, and wherein the diffuser outlets are arranged on the side faces.

2. The battery according to claim 1, wherein the head face is devoid of holes.

3. The battery according to claim 1, wherein the diffuser outlets are slot-shaped.

4. The battery according to claim 1, wherein a distance between the housing and the head face is more than 50 millimeters.

5. The battery according to claim 1, wherein the diffuser outlets are arranged on oppositely arranged side faces.

6. The battery according to claim 1, wherein each of the side faces comprises a plurality of diffuser outlets.

7. The battery according to claim 1, wherein the diffuser element is configured so as to redirect the gas flowing out in the outgoing direction and deliver the gas through the diffuser outlets to an ambient environment of the battery.

8. The battery according to claim 1, wherein the battery comprises a valve element arranged adjacent the housing outlet, wherein the valve element is configured to permanently release the housing outlet as soon as a pressure of a gas in the interior exceeds a threshold.

9. The battery according to claim 1, wherein the battery comprises a seal that separates the diffuser element from the interior in a water-tight manner.

10. A motor vehicle comprising (i) the battery according to claim 1 and (ii) the drive, wherein the battery is electrically connected to the drive, wherein the drive is configured so as to cause a movement of the motor vehicle.

Description

BRIEF DESCRIPTION OF THE DRAWING FIGURES

[0018] Further features and advantages of the present invention will become apparent from the following description of preferred design examples with reference to the accompanying figures. The same reference numbers are used for the same or similar features and for features having the same or similar functions. Here:

[0019] FIG. 1 shows a schematic sectional view of a section of a battery according to an embodiment of the invention;

[0020] FIG. 2 shows a schematic perspective view of a battery from the prior art without the diffuser element;

[0021] FIG. 3 shows a schematic perspective view of a battery according to an embodiment of the invention; and

[0022] FIG. 4 shows a schematic perspective view of the battery from FIG. 3 in a motor vehicle.

DETAILED DESCRIPTION OF THE INVENTION

[0023] Turning now to FIGS. 1-4, the battery 100 comprises a housing 101 that surrounds an interior 102. An energy reservoir (not shown in the figures) is arranged in the interior 102. Gas produced during operation of the battery 100 can flow out of the interior through a housing outlet 107. The outgoing gas is represented by arrows in the figures. A valve element 104 is arranged directly on the housing outlet 107, through which the gas can flow. In particular, the valve element 104 prevents moisture and/or other fluids from entering the interior 102.

[0024] The valve element 104 is also configured so as to permanently release the housing outlet 107 when the pressure of the gas in the interior 102 exceeds a threshold. For example, in this case, a portion of the valve element 104 can break out.

[0025] A diffuser element 103 having four side faces 105 and a head face 106 is attached to an exterior of the housing 101. Slot-shaped diffuser outlets 300 are arranged on all four side faces 105, through which the gas can flow into an environment. Because the head face 106 is free of diffuser outlets, the gas flowing out of the interior 101 towards the head face 106 is redirected towards the side faces 105 and exits to the environment through the diffuser outlets 300.

[0026] By redirecting the gas and dividing the gas flow into different directions, the concentration of the gas in the immediate vicinity of the battery 100 is reduced so that an undesirable ignition is less likely. This becomes particularly clear from a comparative consideration of the battery 200 from FIG. 2 and the battery 100 from FIG. 3. No diffuser element 103 is present in the battery 200. The gas flows into the environment in a single direction at high concentration. With the battery 100, on the other hand, the gas flows in different directions and thus also at lower concentrations through the diffuser outlets 300 at the side faces 105 of the diffuser element 103.