Axial gap-type electric motor for water pump (ewp)

A water pump comprising:

• a pump cover having an inlet through which a fluid is introduced and an outlet through which the introduced fluid is discharged, at one side and the other side thereof, respectively;
• a body case coupled to the pump cover to form a fluid flow passage inside the pump cover and having a lower space;
• an upper cover coupled to a lower end of the body case to set the lower space as a sealing state;
• a rotor rotatably supported on the fluid flow passage;
• an impeller integrally formed with the rotor on the upper side of the rotor;
• a stator arranged in the lower space to generate a rotating magnetic field to rotatably drive the rotor;
• and
• a waterproof partition wall arranged on top of the body case to separate between the rotor and the stator, wherein
• the stator has a plurality of teeth that are embedded such that a front end portion thereof is embedded in the waterproof partition wall to be exposed to the fluid flow passage, wherein
• a waterproof coating film made of a thinner film than the waterproof partition wall is formed at the front end portion of each of the plurality of teeth exposed to the fluid flow passage.