Multicopter

A multicopter comprising:

• a main body part;
• a wing part having one end connected to the main body part, and other end connected to a propeller assembly;
• and
• a foldable part disposed on the wing part to fold the wing part,
• wherein the wing part is located above the main body part in an upward direction of a Z-axis,
• wherein the wing part comprises:
• a first wing beam having one end connected to the main body part, and other end connected to the foldable part;
• and
• a second wing beam having one end connected to the foldable part, and other end at which the propeller assembly is disposed, and
• wherein the foldable part is disposed between the first and second wing beams, and configured to fold the second wing beam with respect to the first wing beam,
• wherein the one end of the first wing beam connected to the main body part includes a first flow hole so that an air introduced from the main body part flows,
• wherein the first wing beam includes a first flow space through which the air introduced from the first flow hole flows, and
• wherein the other end of the first wing beam connected to the foldable part includes a second flow hole so that the air introduced from the first flow space flows through the second wing beam,
• wherein the main body part comprises:
• an air inlet part formed on a lower portion of the main body part and having outside air introduced into the air inlet part;
• a flow space of a main body formed inside the main body part so that the air introduced from the air inlet part flows through the first flow hole of the first wing beam;
• a communication frame disposed at an edge of the main body part and connected to the first wing beam;
• and
• a communication hole formed in the communication frame, communicating with the first flow hole of the first wing beam, and having air flowing through the communication hole.