MAGNETIC CIRCUIT HAVING SINGLE MAGNETS, SOUND WAVE ACTUATOR USING THE SAME

摘要

PURPOSE: A magnetic circuit using a single magnet and a sound wave actuator using the same are provided to maximize the magnetic force generated within the magnetic gap between a top ring and a middle ring by forming a space between a magnet and an external ring. CONSTITUTION: A single magnet(20) is installed on a protrusion of the center of a round lower plate(10). A middle ring(30) is combined to the top of the magnet. An external ring(40) is attached along the outside of the lower plate. A top ring(50) is attached on the outer ring. The external ring is combined between the bottom plate and the top ring.