Structure for lower portion of vehicle body

A structure for a lower portion of the vehicle body, comprising:

• a floor panel provided below a passenger compartment;
• a side sill provided on an outer side of the floor panel in a vehicle width direction and configured to extend in a forward/rearward direction of a vehicle body;
• a floor frame provided inside the side sill in the vehicle width direction and configured to extend in the forward/rearward direction of the vehicle body;
• an energy source provided inside the floor frame in the vehicle width direction;
• a cross member configured to span between the floor frame and the side sill and configured to extend in the vehicle width direction;
• and
• an in-vehicle component provided which is in a region enclosed by the side sill, the floor frame, and the cross member and is located below the cross member,
• wherein the cross member has an upward deformation guiding part capable of being deformed upward due to an impact load input to the side sill, and
• wherein the in-vehicle component is configured such that, when the in-vehicle component is sandwiched between the side sill and the floor frame in a state in which the upward deformation guiding part is deformed upward and a load is input to each of the side sill and the floor frame due to the inference of the in-vehicle component,
• a downward resultant force of the load applied to the in-vehicle component is greater than an upward resultant force thereof.