Printed circuit board assembly and electronic device

An electronic device, comprising:

• a printed circuit board assembly, wherein the printed circuit board assembly comprises;
• a printed circuit board, wherein the printed circuit board comprises a functional network, and the functional network is configured to provide an electrical function;
• a conductive part, wherein the conductive part is connected to the printed circuit board and is separately electrically connected to the functional network, and wherein the conductive part is a conductive sheet;
• and
• a cover-shaped structure, wherein the cover-shaped structure covers the conductive part and is connected to the printed circuit board, a gap is disposed between the cover-shaped structure and the conductive part, the cover-shaped structure is made of metal, configured to reduce a risk of breakage to the printed circuit board, and the cover-shaped structure is configured to prevent the conductive part located in the cover-shaped structure from contacting a conductor outside the cover-shaped structure,
• wherein the printed circuit board comprises a transverse wide region and a narrow strip region that extends longitudinally, a width of the narrow strip region is less than that of the wide region, and the conductive part and the cover-shaped structure are disposed on the narrow strip region.