Motor

A motor comprising:

• a rotor including a shaft centered on a center axis that extends in a horizontal direction and a rotor core fixed to the shaft;
• a stator that has a cylindrical shape, that is disposed on a radial-direction outer side of the rotor, and that surrounds the rotor;
• and
• a housing that has a cylindrical shape, that is disposed on the radial-direction outer side of the stator, and that houses the rotor and the stator;
• wherein
• the stator includes:
• a plurality of teeth disposed along a circumferential direction and extending in a radial direction;
• and
• a plurality of coils wound around the plurality of teeth, respectively;
• a sealed chamber hermetically sealed and filled with a first cooling medium is provided between the housing and the rotor;
• a housing space in which the rotor core is housed is provided on a radial-direction inner side of the sealed chamber;
• and
• the sealed chamber includes:
• an inner chamber that houses the plurality of coils;
• outer chambers that are disposed on the radial-direction outer side of the inner chamber and that extend in the circumferential direction;
• upper connection portions that are located vertically above the shaft and that connect the inner chamber and the outer chambers to each other;
• and
• lower connection portions that are located vertically below the shaft and that connect the inner chamber and the outer chambers to each other.