Speaker

Abstract

A speaker includes a frame, a vibration system and a magnetic circuit system fixed with the frame, the magnetic circuit system includes a lower clamping plate, a main magnet fixed with an upper surface of the lower clamping plate, an annular secondary magnet surrounding the main magnet for forming a magnetic gap, the lower clamping plate includes a lower surface opposite to the upper surface and a leakage channel recessed from the upper surface to the lower surface but not penetrating the lower surface, the leakage channel connects to the magnetic gap and an outside of the annular secondary magnet. The present invention provides a thinner and more efficient sounding device. The present invention could effectively balance the sound pressure inside and outside the speaker and improve the acoustic performance of the speaker.

Dependencies are inferred from the claim text.