Cantilever type bone conduction device

• Main Author: CHEN GUANGBIAO
• Format: Patent
• Language: Chinese; English
• Published: 08.11.2022
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The utility model provides a cantilever type bone conduction device which comprises a T iron, a magnet, a voice coil, an attraction piece, a first vibrating reed and a second vibrating reed, the magnet is annularly arranged on the peripheral side of a central column of the T iron and is spaced from the central column by a certain distance, and the voice coil is arranged between the central column of the T iron and the magnet. According to the utility model, the first vibrating reed is rigidly connected with the central column of the T iron to form a cantilever from inside to outside, and the second vibrating reed is connected with the first vibrating reed and forms a vibrating gap with the first vibrating reed. The voice coil is electrified to generate a changing magnetic field, so that the attraction and repulsion effect of the T iron of the magnetic circuit assembly on the attraction piece drives the second vibration piece to vibrate and the central column and the first vibration piece to vibrate, and the v