SPEAKER

To provide a speaker which can make distortion less likely to occur even when air passing through a hole provided at a first diaphragm collides with a second diaphragm to achieve improvement of sound quality.SOLUTION: One or more holes 2b are formed at a first diaphragm 2. A second diaphragm 3 is di...

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Bibliographic Details
Main Authors TAKAHATA YASUNARI, INAGAKI KAZUYUKI, KUBOTA MINEHIRO, NEGISHI YUJI
Format Patent
LanguageEnglish
Japanese
Published 01.03.2021
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Summary:To provide a speaker which can make distortion less likely to occur even when air passing through a hole provided at a first diaphragm collides with a second diaphragm to achieve improvement of sound quality.SOLUTION: One or more holes 2b are formed at a first diaphragm 2. A second diaphragm 3 is disposed at the side of the first diaphragm 2 located in a direction in which sound is emitted. A driving part comprising a magnetic circuit (a yoke 7, a permanent magnet 8, and a top plate 9) and a voice coil 5 vibrates the first diaphragm 2 and the second diaphragm 3. The second diaphragm 3 has a rigidity enhanced part (a boundary part 3C), in which rigidity of the second diaphragm 3 is enhanced, at a position facing at least one 2b of the one or more holes 2b.SELECTED DRAWING: Figure 1 【課題】第1の振動板に設けられている孔を通る空気が第2の振動板に当たっても歪が発生しにくく、音質を向上させることができるスピーカを提供する。【解決手段】第1の振動板2には、1または複数の孔2bが形成されている。第2の振動板3は、第1の振動板2における音を放出する方向側に配置されている。磁気回路(ヨーク7、永久磁石8、及びトッププレート9)及びボイスコイル5とによって構成される駆動部は、第1の振動板2及び第2の振動板3を振動させる。第2の振動板3は、1または複数の孔2bのうちの少なくとも1つの孔2bに対向する位置に、第2の振動板3の剛性が強化された剛性強化部(境界部3C)を有する。【選択図】図1
Bibliography:Application Number: JP20190156683