Adopt reaction type NOISE -CANCELLING HEADPHONES of acoustic conductance tubular construction effective control sound leakage

• Main Authors: DING HONGGUI, YANG FENGHUA, XU HAORAN, WEI XUCHANG, HE SHANHONG
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2018
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The utility model relates to an adopt reaction type NOISE -CANCELLING HEADPHONES of acoustic conductance tubular construction effective control sound leakage. Including the earlap, including ante -chamber and big back cavity in the earlap, be equipped with in the earlap the separated face lid of ante -chamber and big back cavity, the face is covered and is equipped with vocal drive module, the sound production drive module include dirver circuit board, with the vocal subassembly of ante -chamber one side is connected and is located to the dirver circuit board electricity, the face is covered to be equipped with on one side of relative ante -chamber and is used for picking up the environment sound and is located pickup unit, the face is covered and still is equipped with the acoustic conductance pipe, the acoustic conductance pipe makes in extending to big back cavity from an one side of the relative ante -chamber of lid big back cavity and ante -chamber UNICOM. At the inside acoustic conductance tubular const