Stator core and electric motor equipped with same

This stator core is formed by stacking a plurality of magnetic steel sheets, and is provided with: an annular core back; and a plurality of teeth that extend inwardly from the core back and each havea winding wound therearound. The core back has a caulked joint for fixing between magnetic steel sheets that are disposed adjacent to each other in a stacking direction. The magnetic steel sheets at the teeth are each formed in a flat plate shape. Protrusions are disposed in some of multiple gaps formed between the magnetic steel sheets at the teeth. 定子铁心通过将电磁钢板层叠多张而成，具备圆环状的芯背部和从芯背部朝向内侧延伸并卷绕绕组的多个齿部。芯背部具有将沿层叠方向相邻的电磁钢板彼此固定的铆接接合部。齿部的电磁钢板形成为平板状。在形成于齿部处的多个电磁钢板之间的多个间隙中的部分的间隙设有突起部。