Patent ID: 8351642
Filing Date: 2013-01-08
Classification: H04R

Abstract:
1. A speaker comprising: a frame; a magnetic circuit body supported by the frame; a voice coil body placed in a magnetic gap formed by the magnetic circuit body, with a coil part of the voice coil body movably disposed; a dust cap placed so as to block an opening of a voice coil bobbin of the voice coil body; a diaphragm placed on an outer circumferential surface of the voice coil bobbin of the voice coil body, with an inner circumference of the diaphragm connected to the outer circumferential surface; a first edge provided at an outer circumference of the diaphragm, with an inner circumference of the first edge connected to the outer circumference, and with an outer circumference of the first edge connected to the frame; and a connecting member placed closer to the magnetic circuit body than from the diaphragm, with an inner circumferential end of the connecting member connected to the outer circumferential surface of the voice coil bobbin of the voice coil body, and with an outer circumferential end of the connecting member connected to the frame, wherein a first space enclosed by a surface of the connecting member close to the magnetic circuit body, the outer circumferential surface of the voice coil bobbin, the magnetic circuit body, and the frame is airtight to an atmosphere outside the speaker, wherein the first space is an air suspension, and wherein the connecting member is an air-impermeable sealing member, the air-impermeable sealing member having a high elasticity and flexibility.