A refrigerator comprising: a refrigerator main body having a storage chamber; a cool air circulation passage arranged to guide air of the storage chamber; and a fan-motor assembly arranged to circulate the air, wherein the fan-motor assembly comprises: a fan including a hub having a first accommodation space therein and a plurality of blades being disposed outside the hub; a motor including a stator and a rotor, the stator having a plurality of stator coils, the motor located in a case, the case being disposed in the first accommodation space of the hub, the stator being disposed in the case, and the rotor having a rotational shaft coupled to the hub and being rotatably disposed in a rotor accommodation space of the stator; and a support plate that is coupled to the case and supports the fan and the motor, characterized in that the case comprises: a first body; a second body coupled to the first body to define a second accommodation space having a circular shape, in which the stator and the rotor are inserted; and a coupling rod protruding from one of the first body and the second body through a space between adjacent stator coils of the stator and coupling to another of the first body and the second body. a refrigerator main body having a storage chamber; a cool air circulation passage arranged to guide air of the storage chamber; and a fan-motor assembly arranged to circulate the air, wherein the fan-motor assembly comprises: a fan including a hub having a first accommodation space therein and a plurality of blades being disposed outside the hub; a motor including a stator and a rotor, the stator having a plurality of stator coils, the motor located in a case, the case being disposed in the first accommodation space of the hub, the stator being disposed in the case, and the rotor having a rotational shaft coupled to the hub and being rotatably disposed in a rotor accommodation space of the stator; and a support plate that is coupled to the case and supports the fan and the motor, characterized in that the case comprises: a first body; a second body coupled to the first body to define a second accommodation space having a circular shape, in which the stator and the rotor are inserted; and a coupling rod protruding from one of the first body and the second body through a space between adjacent stator coils of the stator and coupling to another of the first body and the second body. a fan including a hub having a first accommodation space therein and a plurality of blades being disposed outside the hub; a motor including a stator and a rotor, the stator having a plurality of stator coils, the motor located in a case, the case being disposed in the first accommodation space of the hub, the stator being disposed in the case, and the rotor having a rotational shaft coupled to the hub and being rotatably disposed in a rotor accommodation space of the stator; and a support plate that is coupled to the case and supports the fan and the motor, characterized in that the case comprises: a first body; a second body coupled to the first body to define a second accommodation space having a circular shape, in which the stator and the rotor are inserted; and a coupling rod protruding from one of the first body and the second body through a space between adjacent stator coils of the stator and coupling to another of the first body and the second body. a first body; a second body coupled to the first body to define a second accommodation space having a circular shape, in which the stator and the rotor are inserted; and a coupling rod protruding from one of the first body and the second body through a space between adjacent stator coils of the stator and coupling to another of the first body and the second body.