US 12,409,892 B2
Side sill reinforcement structure for electric vehicle
Masatoshi Yoshida, Kobe (JP)
Assigned to Kobe Steel, Ltd., Kobe (JP)
Appl. No. 18/251,956
Filed by Kobe Steel, Ltd., Kobe (JP)
PCT Filed Oct. 4, 2021, PCT No. PCT/JP2021/036637
§ 371(c)(1), (2) Date May 5, 2023,
PCT Pub. No. WO2022/113524, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 2020-198777 (JP), filed on Nov. 30, 2020.
Prior Publication US 2024/0017770 A1, Jan. 18, 2024
Int. Cl. B62D 21/15 (2006.01); B60K 1/04 (2019.01); B60L 50/60 (2019.01); B62D 25/02 (2006.01); B62D 27/06 (2006.01); B62D 29/00 (2006.01); F16B 5/02 (2006.01); H01M 50/242 (2021.01); H01M 50/249 (2021.01); H01M 50/262 (2021.01)
CPC B62D 21/157 (2013.01) [B60K 1/04 (2013.01); B60L 50/66 (2019.02); B62D 25/025 (2013.01); B62D 27/065 (2013.01); B62D 29/008 (2013.01); F16B 5/02 (2013.01); H01M 50/242 (2021.01); H01M 50/249 (2021.01); H01M 50/262 (2021.01); B60K 2001/0438 (2013.01); H01M 2220/20 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A side sill reinforcement structure for an electric vehicle comprising:
a battery unit for drive disposed in a vehicle interior lower portion of an electric vehicle;
a side sill extending in a vehicle front-rear direction on an outer side in a vehicle width direction of the battery unit; and
a reinforcing member configured to connect the battery unit and the side sill,
wherein the reinforcing member is an extruded material made of an aluminum alloy, and includes a closed cross-sectional portion group in which a plurality of closed cross-sectional portions are continuous in the vehicle width direction in a cross section perpendicular to the vehicle front-rear direction,
wherein the closed cross-sectional portion group includes a first closed cross-sectional portion disposed on an innermost side in the vehicle width direction and a second closed cross-sectional portion disposed adjacent to the first closed cross-sectional portion,
wherein the first closed cross-sectional portion includes a first upper wall and a first lower wall that extend in the vehicle width direction and are arranged to face each other while being separated from each other in a vehicle vertical direction,
wherein the second closed cross-sectional portion includes a second upper wall and a second lower wall that extend in the vehicle width direction and are arranged to face each other while being separated from each other in the vehicle vertical direction, and
wherein a thickness of the first upper wall is larger than a thickness of the second upper wall, and a thickness of the first lower wall is larger than a thickness of the second lower wall.