Patent ID: 6774514
Filing Date: 2004-08-10
Classification: H02K

Abstract:
A totally enclosed type driving electric motor, comprising:a shaft; a cylindrical frame which surrounds the shaft; a bearing bracket having a circular shape and attached to one end of the frame, the bearing bracket having a first hole through which the shaft passes and having the same axis as the shaft; a housing having a circular shape and attached to another end of the frame, the housing having a second hole through which the shaft passes and having the same axis as the shaft; a bearing which is located outside of a unit formed of the frame, the bearing bracket and the housing, and which rotatably supports the shaft; a bearing support which is located outside of the unit and in an inner diameter portion of the bearing bracket, wherein the bearing support supports the bearing; and a rib which couples the bearing bracket to the bearing support, such that said bearing support, said bearing bracket and the rib provide a cooling space communicated to outside air.