External-rotor variable excitation motor
A technology of external rotor and electric motor, which is applied in the direction of electric components, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., and can solve the problems of motor full length lengthening, non-automatic variable excitation, pressure angle becoming large, etc. , to achieve the effect that the effect of the magnet will not decrease, the structure is simple, and the output is easy
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[0095] Refer to the following side Figure 1 to Figure 14 Attached Figure one Next, an embodiment of the outer rotor type variable excitation motor of the present invention will be described in detail.
[0096] figure 1 It shows the structure of an open-type outer-rotor-type variable-excitation motor that is applied to a brushless motor that automatically performs variable excitation according to the magnitude of the load torque in both the forward and reverse rotation directions. figure 2 Is to use figure 1 Diagram of the state where the cam and cam follower of the outer rotor type variable excitation motor move the inner rotor body.
[0097] in figure 1 with figure 2 In the present embodiment, the outer rotor type variable excitation motor includes: a motor body 1; a motor shaft 4 rotatably supported on the inner circumference of the cylindrical portion 1a of the motor body 1 via a pair of rotary bearings 2, 3 The surface side; the stator 5, which is provided on the outer pe...
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