US 12,233,938 B2
Front frame structure for electric vehicle
Isamu Nagasawa, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Feb. 1, 2024, as Appl. No. 18/429,953.
Claims priority of application No. 2023-025423 (JP), filed on Feb. 21, 2023.
Prior Publication US 2024/0278838 A1, Aug. 22, 2024
Int. Cl. B62D 21/15 (2006.01); B60K 1/00 (2006.01); B60R 19/24 (2006.01)
CPC B62D 21/152 (2013.01) [B60K 1/00 (2013.01); B60R 19/24 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A front frame structure for an electric vehicle, the front frame structure comprising:
front side frames in a pair, the front side frames extending in a front-rear direction of a vehicle body of the electric vehicle and being disposed respectively on both sides in a vehicle width direction of a motor room provided in a front portion of the vehicle body;
a bumper beam coupling respective front ends of the front side frames; and
a lower frame disposed in a lower portion of the motor room, both sides in the vehicle width direction of the lower frame being supported by the front side frames respectively,
wherein a power control unit comprising an electric motor is supported on a rear portion of the lower frame,
wherein the front side frames are disposed respectively in extra spaces that are each defined with a side wall in the vehicle width direction of the motor room and a side surface of the power control unit,
wherein the front side frames each comprise
a wall-shaped portion having a wall shape with a dimension in a height direction from a bottom portion of the motor room to an upper portion of the motor room, the wall-shaped portion extending within a rear region of the motor room, and
an arm-shaped portion extending from a front end portion of the wall-shaped portion toward a front portion of the motor room,
wherein a first inclined surface portion having a predetermined elevation angle is formed in a lower portion of the wall-shaped portion to extend forward from a rear portion of the wall-shaped portion,
wherein a second inclined surface portion having a predetermined depression angle is formed on a bottom surface of the arm-shaped portion to extend forward from an end portion of the first inclined surface portion,
wherein lower side frames provided respectively on a left and a right of the lower frame are joined to lower portions of the front side frames,
wherein a front end portion of each of the front side frames and a front end portion of a corresponding one of the lower side frames are joined while being reinforced via a front reinforcement, and
wherein a side surface of an upper valley line portion where the first inclined surface portion and the second inclined surface portion are joined to each other and a side surface of the corresponding one of the lower side frames facing a lower side of the upper valley line portion are coupled to each other via a rear reinforcement of the vehicle body.