Storage Cell Unit for a Motor Vehicle and Motor Vehicle Comprising a Storage Cell Unit

Patent metadata

Field	Value
Publication number	US-2016006008-A1
Application number	US-201514857869-A
Country	US
Kind code	A1
Filing date	Sep 18, 2015
Priority date	Mar 19, 2013
Publication date	Jan 7, 2016
Grant date	—

Abstract

A storage cell unit for a motor vehicle having an electric drive has a housing, in which storage cells are arranged. The housing has an energy absorption region, which is deformable in event of a collision for the purpose of energy absorption.

First claim

What is claimed is:

1 . A storage cell unit for a motor vehicle equipped with an electric drive, the storage cell unit comprising:
a housing in which storage cells are arranged, wherein the housing comprises an energy absorption region configured to be deformable in an event of a collision in order to absorb energy.

2 . The storage cell unit according to claim 1 , wherein
the energy absorption region is provided in a region of the housing in which no storage cells are arranged, and the energy absorption region is located in outer edge regions within the housing.

3 . The storage cell unit according to claim 1 , wherein the housing further comprises a storage cell protection region in which the storage cells are arranged, the storage cell protection region being configured so as not to be deformable in the event of the collision.

4 . The storage cell unit according to claim 2 , wherein the housing further comprises a storage cell protection region in which the storage cells are arranged, the storage cell protection region being configured so as not to be deformable in the event of the collision.

5 . The storage cell unit according to claim 1 , wherein the housing is designed to be protected in relation to external environmental influences.

6 . The storage cell unit according to claim 1 , wherein the housing is configured to be at least one of solids-tight, liquid-tight or gas-tight.

7 . The storage cell unit according to claim 4 , wherein the housing is configured to be at least one of solids-tight, liquid-tight or gas-tight.

8 . The storage cell unit according to claim 1 , further comprising:
an electronic control device that controls the storage cell unit, wherein the electronic control device is accommodated in the housing but is not arranged in the energy absorption region.

9 . The storage cell unit according to claim 1 , wherein the housing is composed of steel, aluminum, and/or a fiber-reinforced plastic.

10 . The storage cell unit according to claim 7 , wherein the housing is composed of steel, aluminum, and/or a fiber-reinforced plastic.

11 . A motor vehicle with an electric drive, comprising:
a storage cell unit comprising a housing in which storage cells are arranged, the housing having an energy absorption region configured to be deformable in an event of a collision in order to absorb energy; a left outer longitudinal member of a vehicle body of the motor vehicle; a right outer longitudinal member of a vehicle body of the motor vehicle, wherein the housing is connected to the left outer longitudinal member and to the right outer longitudinal member, in which case a left energy absorption region within the housing is formed adjacent to the left outer longitudinal member and a right energy absorption region is formed adjacent to the right outer longitudinal member.

12 . The motor vehicle according to claim 11 , further comprising:
a front longitudinal member pair of the motor vehicle; a rear longitudinal member pair of the motor vehicle, wherein the housing is connected to the front longitudinal member pair and/or to the rear longitudinal member pair, in which case a front energy absorption region in the housing is formed adjacent to the front longitudinal member pair and/or a rear energy absorption region in the housing is formed adjacent to the rear longitudinal member pair.

13 . The motor vehicle according to claim 12 , wherein the housing is configured to increase a torsional rigidity and/or flexural rigidity of the vehicle body of the motor vehicle.

14 . The motor vehicle according to claim 12 , wherein the housing is designed as a structural body crossmember for the motor vehicle, the structural body crossmember extending between the left outer longitudinal member and the right outer longitudinal member of the vehicle body of the motor vehicle.

15 . The motor vehicle according to claim 14 , wherein a connecting region of the housing to the left outer longitudinal member and a connecting region to the right outer longitudinal member are configured so as to increase an effective cross-section of the left outer longitudinal member and the right outer longitudinal member, respectively.

16 . The motor vehicle according to claim 7 , wherein the housing is configured such that, in an event of a side, frontal, and/or rear collision, the energy absorption region of the housing is deformable and a storage cell protection region of the housing that protects the storage cells is not deformable.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Volz Karlheinz

Classifications

• H01M2220/20

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

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title

• H01M2200/00

  Safety devices for primary or secondary batteries · CPC title

• H01M50/229

  Composite material consisting of a mixture of organic and inorganic materials · CPC title

• B60L50/64

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