Battery arrangement for a motor vehicle and motor vehicle

Patent metadata

Field	Value
Publication number	US-2020112006-A1
Application number	US-201816486395-A
Country	US
Kind code	A1
Filing date	Jan 12, 2018
Priority date	Feb 21, 2017
Publication date	Apr 9, 2020
Grant date	—

Abstract

A battery arrangement for a motor vehicle (10). The battery arrangement comprises a battery, which has a battery housing and at least one battery cell arranged in the battery housing, and at least one pressure-equalising element for reducing a pressure difference between a pressure in the interior of the battery housing and a pressure in the surroundings of the battery housing. The battery housing has at least one connection region having a passage opening in which at least one conduit of the battery arrangement through which air can flow is connected to the battery housing. The at least one pressure-equalizing element is arranged on the at least one conduit and provides an air throughflow surface of a size that is designed to limit the pressure difference to less than 10 mbar. The invention further relates to a motor vehicle having such a battery arrangement.

First claim

1 - 10 . (canceled)

11 . A battery arrangement for a motor vehicle with a battery, comprising:
a battery housing and at least one battery cell arranged in the battery housing, and with at least one pressure equalizing element for reducing a pressure difference between a pressure in the interior of the battery housing and a pressure in the surroundings of the battery housing, wherein the battery housing comprises at least one connection region with a through opening in which region at least one conduit of the battery arrangement through which air can flow is connected to the battery housing, wherein the at least one pressure equalizing element is arranged on the at least one conduit, wherein the at least one pressure equalizing element provides a surface through which air can flow and with a size designed to limit the pressure difference to less than 10 mbar.

12 . The battery arrangement according to claim 11 , wherein the size of the surface is designed to limit the pressure difference to approximately 2 mbar to 3 mbar.

13 . The battery arrangement according to claim 11 , wherein the surface is greater than the greatest cross section through which air can flow which the at least one conduit through which air can flow comprises in a conduit section adjacent to the connection area.

14 . The battery arrangement according to claim 11 , wherein the battery housing comprises a plurality of connection regions in which conduits through which air can flow and comprising pressure equalizing elements are connected to the battery housing.

15 . The battery arrangement according to claim 11 , wherein the flowthrough cross section of the at least one conduit increases toward a mouth region of the conduit, wherein the at least one pressure equalizing element is arranged in the mouth region of the conduit.

16 . The battery arrangement according to claim 11 , wherein the at least one conduit comprises a plurality of outlets for the air which are closed by a plurality of the pressure equalizing elements.

17 . The battery arrangement according to claim 11 , wherein the battery housing comprises an upper part and a lower part, wherein the upper part is sealed against the lower part by at least one elastic sealing element.

18 . A motor vehicle with at least one battery arrangement for a motor vehicle with a battery, comprising:
a battery housing and at least one battery cell arranged in the battery housing, and with at least one pressure equalizing element for reducing a pressure difference between a pressure in the interior of the battery housing and a pressure in the surroundings of the battery housing, wherein the battery housing comprises at least one connection region with a through opening in which region at least one conduit of the battery arrangement through which air can flow is connected to the battery housing, wherein the at least one pressure equalizing element is arranged on the at least one conduit, wherein the at least one pressure equalizing element provides a surface through which air can flow and with a size designed to limit the pressure difference to less than 10 mbar, wherein the at least one pressure equalizing element is arranged in a region on the at least one conduit which region is arranged in a space of the motor vehicle protected from being loaded with liquid water.

19 . The motor vehicle according to claim 18 , wherein the space is designed as a hollow space of a body part of the motor vehicle and/or as a loading space of the motor vehicle.

20 . The motor vehicle according to claim 19 , wherein the loading space is designed as a space which cannot be accessed from a passenger compartment of the motor vehicle.

Assignees

• Audi Ag

Inventors

• Ernst Michael

Classifications

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• B60L58/10

  for monitoring or controlling batteries · CPC title

• B60L50/64 Primary

  Constructional details of batteries specially adapted for electric vehicles · CPC title

• H01M2/1223

  Electricity · mapped topic

• H01M2/1077 Primary

  Electricity · mapped topic