US 11,967,727 B2
Method for manufacturing a crash frame of a battery compartment for battery electric vehicles
Martin Poloczek, Krefeld (DE); Thomas Hündgen, Juechen (DE); and Stefan Lindner, Willich (DE)
Assigned to Outokumpu Oyj, Helsinki (FI)
Appl. No. 17/278,021
Filed by Outokumpu Oyj, Helsinki (FI)
PCT Filed Oct. 8, 2019, PCT No. PCT/EP2019/077179
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/074486, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 18199378 (EP), filed on Oct. 9, 2018.
Prior Publication US 2021/0351469 A1, Nov. 11, 2021
Int. Cl. H01M 50/242 (2021.01); B60K 1/00 (2006.01); B60R 13/08 (2006.01); B62D 21/15 (2006.01); B62D 29/00 (2006.01); H01M 10/658 (2014.01); H01M 50/224 (2021.01); H01M 50/24 (2021.01); H01M 50/249 (2021.01)
CPC H01M 50/242 (2021.01) [H01M 10/658 (2015.04); H01M 50/224 (2021.01); H01M 50/24 (2021.01); H01M 50/249 (2021.01); B60K 1/00 (2013.01); B60R 13/0869 (2013.01); B62D 21/15 (2013.01); B62D 29/007 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for manufacturing a crash frame for a battery compartment for electric drive vehicles, the battery compartment including the crash frame and a battery housing, the battery housing enclosing at least one battery module, the method comprising the steps of:
providing at least two metallic sheets and arranging the at least two metallic sheets on top of each other;
joining the at least two metallic sheets together essentially at the circumference of at least one sheet to form joined sheets;
introducing a medium between at least two sheets of the joined sheets;
applying a pressure to the medium, causing a deformation of at least one sheet of the joined sheets; and
producing a crash frame including a plurality of wall components, each of the wall components comprising the joined sheets and a deformation space between the at least two sheets, the deformation space produced by the deformation of the at least one sheet;
wherein producing the crash frame includes:
after forming the deformation space, bending the joined sheets along at least one bend line to form the plurality of wall components joined at the at least one bend line;
wherein the crash frame including the plurality of wall components is configured such that in an installed position, the battery housing is inserted into the crash frame.