Loudspeaker
AssigneePanasonic Corporation
InventorsOsamu Funahashi, Seiichi Yoshida, Kimihiro Ando, Kazuyoshi Umemura
Life of this patent
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Abstract
Voice coil body of a loudspeaker is provided at the outer circumferential wall surface with a supporting section. Diameter of the inner circumference of suspension holder is greater than outer diameter of the voice coil body while diameter of the inner circumference of diaphragm is greater than diameter of the inner circumference of suspension holder for facilitating a gluing of the inner circumferential end of suspension holder and the inner circumferential end of diaphragm on the supporting section and to the voice coil body. By so doing, harmonic distortion of a loudspeaker can be further reduced.
Claims1
A loudspeaker comprising
- a frame,
- a magnetic circuit held by the frame,
- a voice coil body disposed so as it can move freely in a magnetic gap of the magnetic circuit,
- a diaphragm whose outer circumferential end is connected to the frame via a first edge, and
- a suspension holder whose outer circumferential end is connected to the frame via a second edge;
- wherein
- the voice coil body is provided at the outer wall surface with a supporting section which is protruding outward, and a diameter of inner circumference of the suspension holder is greater than an outer diameter of the voice coil body while a diameter of the inner circumference of diaphragm is greater than a diameter of the inner circumference of suspension holder for facilitating a gluing of the inner circumferential end of suspension holder and the inner circumferential end of diaphragm on the supporting section and to the voice coil body.
Dependencies are inferred from the claim text.