Keyboard device with protecting function and manufacturing method thereof

A manufacturing method of a keyboard device, the manufacturing method comprising steps of:

• providing a mold;
• placing a frame material into the mold to form a frame body, and placing a film material into the mold to form a protective film, so that the protective film is fixed on the frame body;
• and
• removing the mold, and assembling a keyboard module with a bottom side of the frame body, so that the keyboard device is manufactured,
• wherein the protective film comprises a sheet-like portion, plural connection portions and plural covering portions, wherein the sheet-like portion is arranged between the plural covering portions, and the plural connection portions are connected between the sheet-like portion and the plural covering portions,
• wherein the frame body comprises plural spacer structures and plural perforations, wherein the plural perforations are arranged between the plural spacer structures, the plural perforations are respectively aligned with the corresponding covering portions, and the sheet-like portion is fixed on spacer top surfaces of the plural spacer structures,
• wherein the keyboard module comprises a base plate and plural keys, wherein the plural keys are installed on the base plate, and the plural keys are aligned with the corresponding perforations and the corresponding covering portions, wherein each key comprises a keycap, and the keycap is penetrated through the corresponding perforation and contacted with the corresponding covering portion, wherein when the keycap is in an undepressed state, the corresponding connection portion and the corresponding covering portion are located at a level higher than the spacer top surface of the corresponding spacer structure.