Abstract: Provided is a stator applied to a motor. The stator of the present disclosure may reduce a production cost and simultaneously minimize a motor failure occurring due to corrosion by using an inexpensive steel ball bearing, which is enabled by reducing a magnitude of an shaft voltage that causes the corrosion rather than using a structure (for example, a ceramic bearing or an SGR bearing) for avoiding the corrosion.

Abstract: Provided is a motor cooling structure including: a motor housing having a hollow cylinder shape; a stator core accommodated in the motor housing, and including a plurality of concentric ring-shaped split cores stacked therein; and a cooling pipe receiving cooling fluid flowing from the outside, and providing cooling fluid to the stator core, wherein the split core includes a plurality of passage parts which are recessed in an outer circumference and through which the cooling fluid flows, and a plurality of press-fit parts protruding from the outer circumference, and the passage parts communicate with each other not to form a straight line when the plurality of split cores are stacked.

Abstract: A stator assembly includes hairpin coils continuously connected along a circumferential direction to form a coil winding, a plurality of stator cores disposed along the circumferential direction and configured to fix the hairpin coils, and a support ring configured to surround an outer circumferential surface of the stator core, wherein each of the stator cores is inserted into the hairpin coils forming the coil winding in a radial direction.

Abstract: A stator assembly includes hairpin coils continuously connected along a circumferential direction to form a coil winding, a plurality of stator cores disposed along the circumferential direction and configured to fix the hairpin coils, and a support ring configured to surround an outer circumferential surface of the stator core, wherein each of the stator cores is inserted into the hairpin coils forming the coil winding in a radial direction.

Abstract: A stator assembly includes hairpin coils continuously connected along a circumferential direction to form a coil winding, a plurality of stator cores disposed along the circumferential direction and configured to fix the hairpin coils, and a support ring configured to surround an outer circumferential surface of the stator core, wherein each of the stator cores is inserted into the hairpin coils forming the coil winding in a radial direction.