Oven drying apparatus and coating device

An oven drying apparatus, comprising:

• an oven drying chamber for accommodating a to-be-oven-dried member, the oven drying chamber having a first oven drying side facing the to-be-oven-dried member, with the first oven drying side having a plurality of first air inlet portions for fluid medium to enter the oven drying chamber;
• and a heating assembly disposed on the first oven drying side, the heating assembly being configured to oven-dry the to-be-oven-dried member;
• wherein the first oven drying side is further provided with an air return portion, at least one air return portion being provided between two adjacent first air inlet portions, and the air return portion being configured for fluid medium in the oven drying chamber to be discharged from the oven drying chamber,
• wherein the first air inlet portions, the heating assembly, and the air return portion are disposed on a same side of the to-be-oven-dried member, and
• wherein the oven drying chamber further has a second oven drying side arranged opposite to the first oven drying side in a first direction, the second oven drying side being provided with a plurality of second air inlet portions for fluid medium to enter the oven drying chamber.