Mesh filter in stator cooling system

A motor comprising:

• a rotor;
• a stator comprising a stator core and a coil;
• a housing that houses the rotor and the stator;
• and
• a first annular member that provides a seal between a first end face of the stator core in an axial direction of the stator core and an inner wall surface of the housing,
• wherein
• the first annular member comprises a plurality of first holes through which refrigerant is injected toward a first coil end of the coil protruding from the first end face of the stator core,
• at least one of the plurality of first holes is covered with at least one mesh filter,
• the at least one mesh filter includes a first mesh filter in which an average diameter of pores is a first average pore diameter and a second mesh filter in which an average diameter of pores is a second average pore diameter,
• the first average pore diameter is larger than the second average pore diameter, and
• the at least one of the plurality of first holes includes a first hole covered only with the first mesh filter and an other first hole covered only with the second mesh filter.