Magnetic flux memory type magnetic gear composite motor
A composite motor and magnetic gear technology, applied in the direction of motors, electric vehicles, electrical components, etc., can solve the problems of poor magnetic modulation effect of the air gap magnetic field, and achieve the effects of improved magnetic modulation accuracy, simple control, and improved efficiency
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specific Embodiment approach 1
[0020] Specific implementation mode one: see Figure 1 to Figure 5 This embodiment is described. In this embodiment, 1. A magnetic flux memory type magnetic gear composite motor, including an inner stator 1, an outer stator 2 and a cup-shaped rotor 3, the three are coaxially arranged and located in the casing 4, The cup rotor 3 is located between the inner stator 1 and the outer stator 2;
[0021] The inner stator 1 is fixed on the extension base 5 of the front cover of the casing 4, and the inner stator 1 is wound with an inner stator excitation winding 1-1;
[0022] There are air gaps between the inner stator 1 and the cup rotor 3, and between the cup rotor 3 and the outer stator 2;
[0023] The cup-shaped rotor 3 is fixed on the main shaft 6, and the main shaft 6 runs through the front and rear end covers of the casing 4 and the bottom end of the cup-shaped rotor 3, and is rotatably connected with the front and rear end covers of the casing 4. Bottom fixed connection;
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specific Embodiment approach 2
[0030] Specific implementation mode two: see Figure 1 to Figure 6 Describe this embodiment. The difference between this embodiment and the magnetic flux memory type magnetic gear compound motor described in the first embodiment is that the side wall of the cup-shaped rotor 3 is composed of a magnetic adjustment block 3-1 and a non-magnetic conductive block 3 -2 are arranged alternately.
[0031] In this embodiment, the inner stator excitation winding 1-1 of the present invention is a three-phase winding, and a three-phase symmetrical current is passed through to form a three-pair rotating magnetic field in the inner air gap, and the optimal number of magnetic adjustment blocks 3-1 is 19 , the optimal number of outer stator magnetic steel 2-2 is 16 pairs.
[0032] The magnetic modulation block 3-1 and the non-magnetic conductive block 3-2 constitute a magnetic modulation ring, that is, the side wall of the cup-shaped rotor 3 is the magnetic modulation ring.
[0033] Compared...
specific Embodiment approach 3
[0034] Specific implementation mode three: see Figure 1 to Figure 6 Describe this embodiment, the difference between this embodiment and the magnetic flux memory type magnetic gear composite motor described in Embodiment 1 is that when the inner stator 1 is energized and running, the number of pole pairs of the rotating magnetic field generated is P1, and P1 is integer;
[0035] The number of pole pairs of the outer stator 2 is P2, and P2 is an integer;
[0036] The number of magnetic adjustment blocks 3-1 on the cup rotor 3 is N, and N is an integer;
[0037] Satisfy the relation: P2=|m P1+kN|, wherein, m=1, 3, 5, . . . , +∞; k=0, ±1, ±2, . . . , ±∞.
[0038] In this embodiment, when m=1, k=-1, the air-gap harmonic magnetic field modulated by the magnetic modulation block 3-1 is the strongest. At this time, the magnetic field space harmonic rotation speed Ω generated by the inner stator r for: Among them, Ω s In order to adjust the speed of the magnetic block, it can b...
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