Axial gap-type electric motor including integrated stator core, and water pump using same

A water pump comprising:

• a pump cover in which an inlet through which a fluid is introduced and a side outlet through which the introduced fluid is discharged are connected through a fluid flow passage;
• a cylindrical body case coupled to a lower portion of the pump cover;
• an upper cover coupled to seal a lower portion of the body case to form a space inside the body case;
• a rotor rotatably supported above the fluid flow passage inside the body case;
• an impeller integrally formed with the rotor on an upper side of the rotor;
• a stator arranged below the fluid flow passage inside the body case to face the rotor to generate a rotating magnetic field to rotate the rotor;
• and
• a heat dissipation molding part surrounding the upper portion of the stator to waterproof and insulate the stator and integrating the stator with the body case and the upper cover, wherein
• an air gap forming part of a thin film extending from the heat dissipation molding part is arranged on a front surface of the stator facing the rotor.