The invention relates to a multi-
magnet structure for
energy harvesting and sensing, comprising a rotor, a
stator and an optional fixing mechanism and isolating mechanism, wherein the rotor and the
stator can be separately processed into axially magnetized cylinders and circular rings or radially magnetized magnetic balls according to different application occasions to form a magnetic column typeand a magnetic
ball type; in the magnetic column type, the rotor magnetic column is adsorbed beside the
stator magnetic ring along the circumferential direction under the action of magnetic force; inthe magnetic
ball type, the rotor magnetic ball is adsorbed on the surface of the stator magnetic ball along the radial direction under the action of the magnetic force and gravity; and under the action of external excitation, the rotor magnetic column in the magnetic column type rotates along the circumferential direction of the stator magnetic ring, and the rotor magnetic ball in the magnetic
ball type swings and even rotates around the equilibrium position. With the movement of the rotor, the transformation from the external excitation to a variation
magnetic field can be realized, and thusthe
energy harvesting of the external excitation in any direction can be realized by using coils based on the principle of
electromagnetic induction, and the sensing of external excitation conditionscan be realized by sensing the variation of magnetic fields through a magnetic sensor.