发明名称 MAGNETIC CIRCUIT FOR SPEAKER, SPEAKER DEVICE, AND MANUFACTURING METHOD OF THE MAGNETIC CIRCUIT FOR SPEAKER
摘要 <p>The present invention is to provide a speaker magnetic circuit which, even if small in its thickness, can reduce an occurrence of magnetic flux leakage so as to obtain a sufficient magnetic flux density in a magnetic gap, particularly in a position where a voice coil is supported. The speaker magnetic circuit (11) comprises a yoke (12) and a magnet group (13). The magnet group (13) comprises outer magnets (21-24) and inner magnets (25-28). The outer magnets (21-24) and the inner magnets (25-28) are magnetized in an oblique direction with respect to their thickness direction.</p>
申请公布号 EP2190214(A4) 申请公布日期 2013.02.27
申请号 EP20070807159 申请日期 2007.09.12
申请人 PIONEER CORPORATION;TOHOKU PIONEER CORPORATION 发明人 KONUMA, SHINSUKE
分类号 H04R9/02;H04R31/00 主分类号 H04R9/02
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