OPEN TYPE MOTOR

摘要

Disclosed is a semi-open type induction motor having increased cooling effects of a rotor and a stator through the rotor in a structure in which air can flow to the inside. The disclosed open type motor comprises: a stator which has a stator core with a radial shaped duct groove, and a stator coil coiled around the stator core; and a rotor which is disposed on a hollow of the stator to be able to rotate when the stator coil generates magnetic force and includes a rotation axis, a plurality of rotor cores which are layered in the axial direction of the rotation axis and coupled to the rotation axis, rotor coils coupled to the rotor cores, and a duct plate which is layered between each of the rotor cores and discharges air inside the rotor core to the outside. According to the semi-open type induction motor, the structure in which air can flow in the inside of the rotor and the stator allows air in the rotor and the stator to enhance cooling effects.