Power battery frame for commercial vehicle and commercial vehicle

The invention belongs to the technical field of power battery installation, and discloses a power battery frame for a commercial vehicle and the commercial vehicle. The power battery frame for the commercial vehicle comprises vertical beams, a bottom-layer frame, a mounting layer and a top-layer frame, the bottom-layer frame is composed of tubular beams with first wall thickness, and the vertical beams are supported on the bottom-layer frame; the mounting layer is supported on the bottom layer frame or the first longitudinal beams and is formed by tubular beams with second wall thickness; the top-layer frame is supported at the top ends of the vertical beams, and the top-layer frame is formed by tubular beams with third wall thickness; the first wall thickness > the second wall thickness > the third wall thickness. According to the invention, the tubular beams with different wall thicknesses are optimally designed, so that the lightweight design is realized on the premise of meeting the structural strength of