Mixed excitation dual protruding pole brushless DC generator
A technology of DC generator and mixed excitation, which is applied in the direction of DC commutator, electrical components, electromechanical devices, etc. It can solve the problems of unfavorable motor ventilation and heat dissipation, complex motor structure, and increased axial length, so as to reduce the risk of demagnetization risk effect
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[0023] When the hybrid excitation double salient brushless DC generator of the present invention is a 3-phase motor, the general structure is a 6N / 4N pole structure, that is, the number of stator poles is 6N, the number of rotor poles is 4N, and N is an integer greater than or equal to 3. Figure 1 shows the 18 / 12-pole hybrid excitation double salient brushless DC generator when N is equal to 3. The stator consists of the casing 9 and its inner stator core 1, the permanent magnet 2 placed on the core yoke, and the embedded winding The exciting coil 3 and the armature windings 4, 5, 6 in the stator slot are constituted, and the rotor is constituted by the rotating shaft 7 and the salient pole rotor core 8. There are four permanent magnets in the stator core, two sets of two, the two sets of permanent magnets are arranged symmetrically, and there are three stator poles between the two permanent magnets in a set. The magnetizing direction of the permanent magnets is along the tangenti...
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