Home ﹥ Hot News > Corporate Patents > Patent Title: Piezoelectric Driving Method and System Based on Magnetic Levitation (CN202411952544.8)

Description:

This invention belongs to the field of piezoelectric actuation technology and discloses a piezoelectric driving method and system based on magnetic levitation. The driving method includes:

Step 1: A first magnet is mounted on the outer surface of the stator attached to the piezoelectric block, and a second magnet is mounted on the outer surface of the driven component. The first and second magnets are arranged facing each other, with the contacting sides having the same magnetic polarity, thereby generating repulsive force.

Step 2: When the piezoelectric block is excited by an external signal, it generates vibration amplitude. This amplitude is transmitted to the driven component via the magnetic repulsion between the first and second magnets. As a result, the driven component is displaced and forced into motion while remaining in a levitated state.

This invention leverages the repulsive force between like poles of magnetic materials to achieve non-contact drive transmission between the stator and the driven component. It effectively eliminates frictional losses and significantly improves the operational lifespan of piezoelectric drive systems.