ELECTROACOUSTIC TRANSDUCER FOR HEARING AID COMPATIBILITY AND COMMUNICATIONS DEVICE COMPRISING THE SAME

摘要

An electroacoustic transducer for hearing aid compatibility and a communication device comprising the same are provided to allow a user wearing a hearing aid to clearly recognize a voice by having an amplifying circuit to amplify only current flowing in an auxiliary coil. In an electroacoustic transducer(220) for hearing aid compatibility, a protector has a plurality of sound discharging holes. A frame supports the outer frame of the protector, and forms a predetermined inner space with the protector. A diaphragm is supported by the frame, and generates sound by vibration. A voice coil(232) is mounted to the lower end of the diaphragm. A magnet is mounted to the frame corresponding to the voice coil(232). An upper plate supports the magnet together with the frame by being formed at the upper part of the magnet. An auxiliary coil(240) forms a magnetic field corresponding to an induction coil of a hearing aid. An amplifying circuit(250) amplifies current flowing in the auxiliary coil(240).