US 12,283,702 B2
Seal for a battery housing of a high-voltage battery, method, battery housing, high-voltage battery and motor vehicle
Josef Braun, Feldkirchen-Westerham (DE); Andreas Obermaier, Munich (DE); and Joern Zimmermann, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/595,202
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Jul. 6, 2020, PCT No. PCT/EP2020/068992
§ 371(c)(1), (2) Date Nov. 11, 2021,
PCT Pub. No. WO2021/028118, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 10 2019 121 510.2 (DE), filed on Aug. 9, 2019.
Prior Publication US 2022/0223956 A1, Jul. 14, 2022
Int. Cl. H01M 50/00 (2021.01); H01M 50/207 (2021.01); H01M 50/249 (2021.01)
CPC H01M 50/207 (2021.01) [H01M 50/249 (2021.01)] 15 Claims
OG exemplary drawing
 
1. A seal for a battery housing of a high-voltage battery of a motor vehicle, wherein the seal is transferrable from a production position, which is provided for a production tool, to an installation position, which is provided for the battery housing and in which the seal has a greater external dimension than in the production position, the seal comprising:
a seal body for arrangement between a housing flange of a housing lower part of the battery housing and a housing cover of the battery housing, and
positioning elements and fixing elements for positioning and fixing the seal body on the housing flange, wherein:
the seal body is configured in a form of a one-part, closed seal ring composed of an elastic plastic and has at least one seal body portion of reversibly variable length with fold regions,
a shape and a dimension of the closed seal ring in the installation position correspond to a shape and a dimension of the housing flange,
the at least one seal body portion provides, in a folded state of the fold regions, the production position of the seal and, in an unfolded state of the fold regions, the installation position of the seal, and
positioning regions and fixing regions, which are formed away from the fold regions in the seal body and in which the positioning elements and the fixing elements are arranged, are configured to have a greater width than the fold regions.