Motor, motor assembly, and air conditioner

A motor assembly comprising:

• a motor;
• a sealing member;
• and
• a frame with the motor and the sealing member fixed thereto,
• the motor including
• a stator including a coil holding portion and a first portion, the coil holding portion holding a coil, the first portion having an annular shape and extending radially outward from the coil holding portion,
• a rotor including a magnet and a magnet holding portion that holds the magnet, the rotor being disposed on a first side of the stator along a rotation axis direction,
• the magnet holding portion being located in a first space having an annular shape and located radially outside the coil holding portion,
• the first portion having
• a first surface having an annular shape and being in contact with the first space, and
• a second surface having an annular shape and being on a side opposite to the first surface,
• at least one through hole being provided in the first portion at a position radially outward of the coil, the at least one through hole penetrating from the first surface to the second surface, and
• the sealing member being
• disposed on a second side of the stator opposite from the rotor along the rotation axis direction, and
• fixed to the frame in such a way that a second space is formed between the sealing member and the stator, the second space being closed except that it communicates with the first space via the at least one through hole.