Patent ID: 6781264
Filing Date: 2004-08-24
Classification: H02K

Abstract:
An electric motor and brake system, comprising:a motor portion comprising: an electrical core surrounded by a frame; a motor shaft coupled to the electrical core; and an end shield coupled to the frame located at a drive end of the motor; an integral field cup and front end shield having a first side and a second side, the first side coupled to the frame located at an opposite drive end of the motor; and a brake portion coupled on a first side to the second side of the integral field cup and front end shield and coupled on a second side to an armature plate, at least one electromagnetic coil supported within the second side of the integral field cup and front end shield, at least one compression spring disposed between the armature plate and the at least one electromagnetic coil, the armature plate coupled to a friction disk coupled to the motor shaft wherein the armature plate is operable to actuate axially toward the friction disk and a stationary plate such that a force is applied to the friction disk thereby holding the motor shaft in a rotatably fixed state; and a fan located outside the brake portion, the fan being operable to provide cooling air to the motor and the brake.