Electric magnetic resistance control structure for exercise machine

An electric magnetic resistance control structure for an exercise machine, comprising:

• a base, said base having first plate and a second plate, the first plate and the second plate are arranged oppositely and fixedly connected by a plurality of supporting rods;
• a flywheel, pivotally connected to the base through a rotating shaft, the rotating shaft defining an axial direction, the flywheel rotating about the rotating shaft, the flywheel being made of a magnetically sensitive material, a non-magnetically sensitive layer being coupled to a circumference of the flywheel;
• a power unit, fixed to the base, said power unit having a rotatable lead screw extending along the axial direction;
• a magnetic resistance unit, driven by the power unit to move along the axial direction, the magnetic resistance unit including a coupling portion corresponding to an arc of the non-magnetically sensitive layer, at least one magnetic member being provided on the coupling portion, the magnetic member being kept at a distance from the non-magnetically sensitive layer to generate a magnetic resistance effect the magnetic resistance unit includes a moving seat and two sliding blocks, the lead screw is threadedly inserted through the moving seat, and the supporting rods are inserted through the two sliding blocks,
• a control unit, electrically connected to the power unit, so as to control the power unit to actuate;
• wherein a current is applied to the power unit to drive the magnetic resistance unit to move along the axial direction, an overlapping area of the magnetic member and the non-magnetically sensitive layer in the axial direction being changeable, so as to adjust a magnetic resistance of the flywheel.