US 11,807,304 B2
Vehicle base structure
Takahiro Suzaki, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed on Feb. 25, 2021, as Appl. No. 17/184,591.
Claims priority of application No. 2020-036122 (JP), filed on Mar. 3, 2020.
Prior Publication US 2021/0276621 A1, Sep. 9, 2021
Int. Cl. B60K 1/00 (2006.01); B62D 21/15 (2006.01); B60K 1/04 (2019.01); B62D 25/20 (2006.01); B60L 3/00 (2019.01)
CPC B62D 21/157 (2013.01) [B60K 1/04 (2013.01); B60L 3/0007 (2013.01); B62D 25/2009 (2013.01); B60K 2001/0405 (2013.01); B60Y 2306/01 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A vehicle base structure, comprising:
first and second structural members extending along a vehicle front-rear direction, the first and second structural members being disposed respectively at first and second sides of a vehicle base in a vehicle width direction;
a battery unit disposed between the first and second structural members, the battery unit including a battery case and a battery accommodated in the battery case; and
a bracket including
a first wall portion fixed to a lower surface of one of the first and second structural members,
a second wall portion extending inward in the vehicle width direction from an inner end portion of the first wall portion such that the second wall portion is inclined downward in a vehicle-height direction from the inner end portion of the first wall portion, the inner end portion of the first wall portion being an end portion at an inward side of the first wall portion in the vehicle width direction, and
a third wall portion extending inward in the vehicle width direction from an inner end portion of the second wall portion, the third wall portion being fixed to a lower surface of the battery case, and the inner end portion of the second wall portion being an end portion at an inward side of the second wall portion in the vehicle width direction, wherein:
the first and second structural members each have a closed cross-section structure that extends along the vehicle front-rear direction;
the first and second structural members each include:
a first lower-wall portion that makes up a lower wall of a corresponding one of the first and second structural members, the lower wall being at an outward side of the corresponding one of the first and second structural members in the vehicle width direction,
a second lower-wall portion disposed at a position that is inward of the first lower-wall portion in the vehicle width direction and that is above the first lower-wall portion in the vehicle-height direction, the second lower-wall portion having a lower surface to which the first wall portion is fixed, and
a stepped portion that connects an inner end portion of the first lower-wall portion and an outer end portion of the second lower-wall portion to each other along the vehicle-height direction, the inner end portion of the first lower-wall portion being at an inward side of the first lower-wall portion in the vehicle width direction, and the outer end portion of the second lower-wall portion being at an outward side of the second lower-wall portion in the vehicle width direction; and
inside each of the first and second structural members, a bulkhead is provided, the bulkhead being interposed between the stepped portion and a side-wall portion of a corresponding one of the first and second structural members, the side-wall portion being at the outward side of the corresponding one of the first and second structural members in the vehicle width direction.