| 摘要 |
An electric motor ( 100 ) for controlling the lateral displacement of a shaft ( 114 ) connected to a rotor ( 104 ) of the electric motor ( 100 ) is provided. The electric motor ( 100 ) includes one or more stator conductors ( 106 ) for carrying a current and one or more permanent magnets ( 108 ) to produce a magnetic field ( 504 ). The one or more stator conductors ( 106 ) interact with the magnetic field ( 504 ) when the power is applied, to purposely generate a force with an axial (Fa) and a circumferential component (Fc). The electric motor ( 100 ) includes the shaft ( 114 ) that travels along a rotor axis ( 506 ) in an axial direction when the power is applied, under an action of the axial component of the force. However, when the power is removed, the shaft ( 114 ) retracts under the action of a biasing force from a tension device ( 118 ).
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