Energy store for a vehicle and method for providing an energy store for a vehicle

Patent metadata

Field	Value
Publication number	US-10622606-B2
Application number	US-201514740325-A
Country	US
Kind code	B2
Filing date	Jun 16, 2015
Priority date	Jun 24, 2014
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

An energy store for a vehicle has an energy store cell arrangement and a housing that at least partly covers the energy store cell arrangement. A compensation apparatus is arranged between the housing and the energy store cell arrangement.

First claim

What is claimed is:

1. An energy store for a vehicle, the energy store avoiding damage in response to a high load an acceleration peak in a crash situation, comprising:
a housing having front and back walls spaced apart in the driving direction of the motor vehicle;
an energy store cell arrangement provided in the housing so that a clearance is formed in the driving direction between the energy store cell arrangement and one of the front and back walls of the housing;
a plastic or rubber deformation element in the clearance between the energy store cell arrangement and one of the front and back walls of the housing, the deformation element covering a surface of the energy store cell arrangement substantially facing the one of the front and back walls from a top end to a bottom end of the energy store cell arrangement and being of substantially uniform thickness from the top end to the bottom end of the energy store cell arrangement; and
a compensation apparatus between the housing and the deformation element, the compensation apparatus being inserted along an insertion direction that is transverse to the driving direction and extending substantially from a top end to a bottom end of the deformation element along the insertion direction, the compensation apparatus having a plurality of curves interconnected to one another, the curves having apices that are spaced from one another along the insertion direction, the curves defining a meandering shape so that the apices of the curves that are adjacent to one another in the insertion direction face in opposite directions toward one of the housing and the energy store cell arrangement, each of the curves having an amplitude extending parallel to the direction of travel so that a damping action of the compensation apparatus is substantially parallel to the driving direction of the vehicle for avoiding damage to the energy store cell arrangement in response to a high load or an acceleration peak in a crash situation.

2. The energy store of claim 1 , wherein the compensation apparatus is arranged in a slip-resistant manner between the housing and the energy store cell arrangement.

3. The energy store of claim 1 , wherein the compensation apparatus is elastically deformable.

4. The energy store of claim 1 , wherein the compensation apparatus is fixed on at least one of the housing, the energy store cell arrangement and/or on the deformation element.

5. The energy store of claim 1 , wherein the compensation apparatus comprises a metallic spring element.

6. A method for providing an energy store for a vehicle, comprising:
providing a housing;
positioning an energy store cell arrangement in the housing so that a clearance is formed between a front or back wall of the housing in a driving direction of the vehicle and the energy store cell arrangement;
positioning a plastic or rubber deformation element of substantially uniform thickness in the clearance between the energy store cell arrangement and one of the front and back walls of the housing so that the deformation element covers a surface of the energy store cell arrangement substantially facing the one of the front and back walls from a top end to a bottom end of the energy store cell arrangement; and
inserting a compensation apparatus in an inserting direction transverse to the driving direction of the vehicle and into a space between the housing and the deformation element so that the compensation apparatus extends substantially from a top end to a bottom end of the deformation element along the insertion direction, the compensation apparatus having a plurality of interconnected curves spaced apart along the inserting direction and configured to sequentially resiliently engage the housing and/or the energy store cell arrangement during insertion into the clearance, the curves defining a meandering shape so that apices of the curves that are adjacent to one another in the insertion direction face in opposite directions toward one of the housing and the energy store cell arrangement for avoiding damage to the energy store cell arrangement in response to a high load or an acceleration peak in a crash situation.

Assignees

• Porsche Ag
• Dr Ing H C F Porsche Aktiengesellscahft

Inventors

• Keller Ralf
• Ewert Eduard

Classifications

• H01M2220/20

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

• Y10T29/4911

  including sealing · CPC title

• B60L50/66 Primary

  Arrangements of batteries · CPC title

• H01M2/1094

  Electricity · mapped topic

• H01M2/1083 Primary

  Electricity · mapped topic