发明名称 SPEAKER AND AUDIO DEVICE PROVIDED WITH SAME
摘要 <p>A speaker (100, 200) including: a magnetic circuit (120, 220); a frame (103, 203); a coil (109, 210); a diaphragm (101, 201) including a connection portion (102, 202) which connects the diaphragm (101, 201) and the frame (103, 203) to allow the diaphragm (101, 201) to vibrate in a direction vertical to the frame; and a cover member (104, 205) which (i) is disposed to be connected to one end of the frame (103, 203) and to cover the diaphragm (101, 201) from above, and (ii) forms, between the cover member (104, 205) and another end of the frame (103, 203), an opening (130, 230) for emitting a sound, the one and the other ends being in a lateral direction that is orthogonal to the vertical direction, wherein the cover member (104, 205) includes, on a closed end side, a spacer (110, 204) for reducing volumetric capacity of a space on the closed end side above the diaphragm (101, 201) and below the cover member (104, 205).</p>
申请公布号 EP2640088(A1) 申请公布日期 2013.09.18
申请号 EP20110839471 申请日期 2011.11.09
申请人 PANASONIC CORPORATION 发明人 TAKEWA, HIROYUKI;KAGAWA, SHINYA
分类号 H04R1/28;H04R1/30;H04R1/34;H04R7/04;H04R7/14;H04R9/00;H04R9/04 主分类号 H04R1/28
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