Dc motors are generally small dc motor number 11 stand, each frame, there are two core length, suitable for a normal working environment. 1 small dc motor. Weaken the magnetic speed up for the constant power running, but speed shall not exceed the highest speed of the motor is allowed to mechanical strength. 2. Decline in the armature voltage down speed control: (1) separately excited motor speed adjustment before down, should be weakening magnetic field up to the specified value (The general is 1. 2 times the extra speed)After decompression speed down. (2) by ventilation cooling method of motor speed control for the constant torque running down. (3) the fan cooled motor torque will falls with the rotating speed. Ventilation method has since fan cooled (Built-in fan, axial ventilation)And his fan cooled (With blower, forced ventilation), also don't take fan, according to the ventilation pipe type to use. So what is the structure of small dc motor 1. Dc generator or dc generator voltage regulator to make horizontal, only stand with a foot. 2. The structure of the dc motor can be made in the following table is shown in model.
