Part and part layout structure

The utility model discloses a part and a part layout structure. The component includes: a component; the part comprises a part body and a connecting part connected with the part body. The connecting part comprises a part transverse edge far away from the part body and a part side edge for connecting the part body with the part transverse edge; the part side edge is connected with the part transverse edge through a part transition section; the part transition section comprises a first arc-shaped part transition section and a second arc-shaped part transition section; the connecting line of thefirst end and the second end of the first arc-shaped part transition section is a first reference line; the cambered surface of the first arc-shaped part transition section is located on the side, away from the part body, of the first datum line, the connecting line of the first end and the second end of the second arc-shaped part transition section is a second datum line, and the cambered surfaceof the second arc-shaped