Loudspeaker

• Main Authors: TSUTSUMI HIROKO, OSHIKA KAZUHIRO, SHIBUYA TOMONORI, KOURA SATOSHI, KUZE MITSUKAZU, NAKAYAMA KOICHI
• Format: Patent
• Language: Chinese; English
• Published: 13.07.2016
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

A loudspeaker comprises: an upwardly-protruding dome-shaped diaphragm body; a magnetic circuit located below the diaphragm body; a voice coil coupled to the diaphragm body; an edge coupled to the peripheral part of the diaphragm body; and a frame coupled to the edge. The edge comprises: a first coupling part formed along the outer periphery; a second coupling part formed along the inner periphery and coupled to the peripheral part of the diaphragm body; a roll part formed between the first and second coupling parts; and a downwardly facing surface. The frame has a connection surface located below the second coupling part of the edge and coupled to said surface of the edge at the first coupling part thereof. This loudspeaker can reduce the distortion. 扬声器具备向上方突出的圆顶型的振动板主体部、配置在振动板主体部的下方的磁路、与振动板主体部结合的音圈、与振动板主体部的外周部结合的边缘、以及与边缘结合的框架。边缘具有设置于外周的第结合部、设置于内周且与振动板主体部的外周部结合的第二结合部、以及设置在第结合部与第二结合部之间的卷弯部，该边缘部具有朝向下方的面。框架具有连接面，该连接面配置在比边缘的第二结合部靠下方的位置并且在第结合部与边缘的所述面结合。该扬声器能够减小变形。