After the series-wound DC motor field winding and the armature winding in series, followed by the DC power supply. This is the DC motor armature current excitation current. Complex compound excited excited DC machine has two shunt and series excitation field winding. If the potential direction of the magnetic flux generated by the magnetic flux series winding and field winding potential and produce the same product called compound excitation. If the two magnetomotive force in the opposite direction motor presentation is called differential compound excitation. Permanent magnet DC motors have a stator poles, rotor, brush, outside the motor housing and other components Schematic motor stator poles using permanent magnet (permanent magnet), ferrite, Alnico, NdFeB material. Its structure can be divided into a cylinder and tile type and other types. Most electricity is used VCR cylindrical magnet, and power tools and automotive electrical motor used in most use of special block type magnet. Motor applications, motors, electrical and mechanical lift provided by the lift Rui Rui HVAC Electrical Equipment Factory. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) strong, credible, Shandong Texas fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Swiss mechanical and electrical liter into the brilliant and you work for a better future!