Vehicle-body front structure including reinforcement members
A vehicle-body front structure for an electric vehicle includes a front-side battery frame which extends in a vehicle width direction, a pair of left and right side frames and which extend forward from the front-side battery frame, a cross member between the left and right side frames and, and reinforcement members and which extend toward vehicle rear from the cross member toward the front-side battery frame.
1 . A vehicle-body front structure of an electric vehicle which includes a traveling motor and in which a battery casing housing a battery supplying electric power to the traveling motor is disposed below a floor panel, the vehicle-body front structure comprising:
a front-side battery frame fixed to a front portion of the battery casing and extending in a vehicle width direction;
a pair of side frames including a left side frame and a right side frame which extend from the front-side battery frame toward a vehicle front;
a cross member coupling the left side frame and the right side frame, the cross member being spaced apart from the front-side battery frame to the vehicle front;
a reinforcement member which extends from an intermediate portion of the cross member toward the front-side battery frame; and
a frame bracket coupling a rear portion of each of the left side frame and the right side frame to the front-side battery frame, wherein the reinforcement member and the pair of the left side frame and the right side frame are disposed at a same height in a vehicle height direction to form a horizontal load transmission path to the front-side battery frame.
2 . The vehicle-body front structure according to claim 1 , wherein
the left and right side frames are inclined toward vehicle-width-direction outer sides toward the vehicle front.
3 . The vehicle-body front structure according to claim 2 , wherein
a rear of the reinforcement member abuts the frame bracket.
4 . The vehicle-body front structure according to claim 3 , wherein
the reinforcement member includes a left-side reinforcement member and a right-side reinforcement member spaced apart from each other in the vehicle width direction, and
the left-side reinforcement member and the right-side reinforcement member are disposed on vehicle-width-direction outer sides toward rear.
5 . The vehicle-body front structure according to claim 3 , further comprising
a suspension arm forming part of a front suspension apparatus is supported to be swingable around a pivot point directly adjoining a leading edge of the front-side battery frame on a vehicle-width-direction outer side of the frame bracket.
6 . The vehicle-body front structure according to claim 5 , wherein
a front of the traveling motor is disposed rearward of a front of the cross member.
7 . The vehicle-body front structure according to claim 6 , wherein
an intermediate portion of the cross member in the vehicle width direction is below a lower surface of the side frames, and
the reinforcement member extends from the intermediate portion of the cross member in the vehicle width direction toward the front-side battery frame below the left and right side frames.
8 . The vehicle-body front structure according to claim 5 , wherein
an intermediate portion of the cross member in the vehicle width direction is below a lower surface of the side frames, and
the reinforcement member extends from the intermediate portion of the cross member in the vehicle width direction toward the front-side battery frame below the left and right side frames.
9 . The vehicle-body front structure according to claim 4 , wherein
an intermediate portion of the cross member in the vehicle width direction is below a lower surface of the side frames, and
the reinforcement member extends from the intermediate portion of the cross member in the vehicle width direction toward the front-side battery frame below the left and right side frames.
10 . The vehicle-body front structure according to claim 4 , wherein
a front of the traveling motor is disposed rearward of a front of the cross member.
11 . The vehicle-body front structure according to claim 3 , wherein
an intermediate portion of the cross member in the vehicle width direction is below a lower surface of the side frames, and
the reinforcement member extends from the intermediate portion of the cross member in the vehicle width direction toward the front-side battery frame below the side frames.
12 . The vehicle-body front structure according to claim 3 , wherein
a front of the traveling motor is disposed rearward of a front of the cross member.
13 . The vehicle-body front structure according to claim 2 , wherein
the reinforcement member includes a left-side reinforcement member and a right-side reinforcement member spaced apart from each other in the vehicle width direction, and
the left-side reinforcement member and the right-side reinforcement member are disposed on vehicle-width-direction outer sides toward rear.
14 . The vehicle-body front structure according to claim 2 , wherein
an intermediate portion of the cross member in the vehicle width direction is below a lower surface of the side frames, and
the reinforcement member extends from the intermediate portion of the cross member in the vehicle width direction toward the front-side battery frame below the left and right side frames.
15 . The vehicle-body front structure according to claim 2 , wherein
a front of the traveling motor is disposed rearward of a front of the cross member.
16 . The vehicle-body front structure according to claim 1 , wherein
a rear of the reinforcement member abuts the frame bracket.
17 . The vehicle-body front structure according to claim 1 , wherein
the reinforcement member includes a left-side reinforcement member and a right-side reinforcement member spaced apart from each other in the vehicle width direction, and
the left-side reinforcement member and the right-side reinforcement member are disposed on vehicle-width-direction outer sides toward rear.
18 . The vehicle-body front structure according to claim 1 , wherein
a front of the traveling motor is disposed rearward of a front of the cross member.
19 . The vehicle-body front structure according to claim 1 , wherein
an intermediate portion of the cross member in the vehicle width direction is below a lower surface of the side frames, and
the reinforcement member extends from the intermediate portion of the cross member in the vehicle width direction toward the front-side battery frame below the left and right side frames.
20 . A vehicle-body front structure of an electric vehicle which includes a traveling motor and in which a battery casing housing a battery is disposed below a floor panel, the vehicle-body front structure comprising:
a front-side battery frame fixed in a front portion of the battery casing and extending in a vehicle width direction;
a pair of side frames including a left side frame and a right side frame which extend from the front-side battery frame toward a vehicle front;
a cross member coupling the left side frame and the right side frame;
a reinforcement member which extends toward a vehicle rear from the cross member toward the front-side battery frame; and
a suspension arm forming part of a front suspension apparatus, wherein the reinforcement member and the pair of the left side frame and the right side frame are disposed at a same height in a vehicle height direction to form a horizontal load transmission path to the front-side battery frame, and
the suspension arm is supported to be swingable around a pivot point directly adjoining a leading edge of the front-side battery frame.