A CARBON FIBER FABRIC COUPLING IN A RAILWAY CAR DIRECT DRIVE MOTOR

摘要

The present invention provides a carbon fiber fabric coupling in a railway car direct drive motor. The present invention includes a stator fixed to a car; a rotor which includes a permanent magnet and is combined with an axle; a frame which surrounds the stator and the rotor; a housing combined with both ends of the frame; a coupling which is combined with the axle and reduces vibration coming from a rail, and is made of carbon fiber for weight reduction, inertia reduction, response characteristic improvement, flux path structure smoothing, heat radiation improvement. The stable combination structure and lightening of a frame structure and a coupling are important to prevent safe accident and to improve the cooling characteristic of a drive motor. In this regard, the coupling material of the drive motor is made of carbon fiber so that the total weight of the drive motor can be reduced and also response speed can be improved.