Battery protection structure resistant against frontal collision of monocoque vehicle

A battery protection structure comprising:

• a sub frame mounted to a lower portion of a pair of front side members;
• a stopper provided at a rear portion of the sub frame and aligned with a power electric (PE) mounting part in a longitudinal direction of a vehicle body, the PE mounting part being configured to mount a PE system to the sub frame;
• a center side lower member configured to support a rear portion of the stopper to a center cross member, wherein:
• a rear portion of the center side lower member is coupled to the center cross member and a front portion of the center side lower member is coupled to the stopper, and
• the center side lower member is provided linearly long in the longitudinal direction of the vehicle body;
• a center floor panel coupled to an upper portion of the center cross member, wherein the center side lower member defines a closed section together with the center floor panel;
• a dash panel;
• a dash lower cross member provided long at a lower surface of the dash panel in a transverse direction of the vehicle body, wherein:
• the stopper protrudes at a lower portion of the dash lower cross member, and
• the stopper connects rear portions of the front side members to each other;
• a plurality of dash upper cross members on an upper surface of the dash panel, the dash upper cross members provided long in the transverse direction of the vehicle body to be spaced apart from each other in the longitudinal direction of the vehicle body;
• and
• a pair of dash upper members connecting the plurality of dash upper cross members to each other in the longitudinal direction of the vehicle body and connected to the center cross member to face each other with the center floor panel located therebetween.

A vehicle comprising:

• a vehicle body;
• a sub frame mounted to a lower portion of a pair of front side members;
• a pair of stoppers provided at a rear portion of the sub frame and aligned with a power electric (PE) mounting part in a longitudinal direction of the vehicle body;
• a PE system mounted to the sub frame by the PE mounting part;
• a pair of center side members at opposite sides of the vehicle body, the center side members being connected to rear portions of the front side members;
• a center cross member provided long in a transverse direction of the vehicle body and connecting the center side members to each other;
• a pair of center side lower members each having a rear portion coupled to the center cross member and a front portion coupled to and configured to support rear portions of the stoppers, respectively;
• a center floor panel coupled to an upper portion of the center cross member;
• and
• a dash panel and a dash lower cross member provided long at a lower surface of the dash panel in the transverse direction of the vehicle body, wherein:
• the stoppers protrude at lower portions of the dash lower cross member, and
• the stoppers connect the rear portions of the front side members to each other.