JP2023522681A - 音響出力装置 - Google Patents
音響出力装置 Download PDFInfo
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- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Headphones And Earphones (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Circuit For Audible Band Transducer (AREA)
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Abstract
Description
本願は、2020年8月4日に提出された国際出願番号PCT/CN2020/106759の優先権を主張し、そのすべての内容が参照により本明細書に組み込まれるものとする。
110 ハウジング構造
111 リアキャビティ
112 第1放音孔
120 音響ドライバ
121 振動膜
513 第2放音孔
930 保護構造
1101 第1側壁
1102 第2側壁
1103 第3側壁
1015 第4放音孔
1111 エッジ
1120 平面振動膜
1220 磁気回路構造
3111 曲面構造
7221 磁束伝導プレート
7222 第3放音孔
72222 第1孔部
72221 第2孔部
8223 音導管
Claims (18)
- 音響出力装置において、
振動膜と磁気回路構造を含む音響ドライバであって、前記振動膜の前記磁気回路構造に背向する側が前記音響ドライバの正面を形成し、前記磁気回路構造の前記振動膜に背向する側が前記音響ドライバの裏面を形成し、前記振動膜の振動により前記音響ドライバがその正面と裏面からそれぞれ外部に音声を放出する音響ドライバと、
前記音響ドライバを載置するように構成されたハウジング構造であって、前記音響ドライバの裏面と前記ハウジング構造がリアキャビティを形成し、前記リアキャビティの異なる側壁が曲面構造により接続されるハウジング構造と、
を含み、
前記ハウジング構造は、前記リアキャビティと音響的に結合されるとともに、前記音響ドライバから前記リアキャビティに放出された音声を前記音響出力装置の外部に伝達する少なくとも1つの放音孔を含み、前記少なくとも1つの放音孔は、前記リアキャビティの少なくとも一部の側壁に位置する、ことを特徴とする音響出力装置。 - 前記リアキャビティの異なる側壁は、少なくとも1つの第1側壁と第2側壁を含み、前記少なくとも1つの第1側壁は、前記ハウジング構造の周側に位置し、前記第2側壁は、前記音響ドライバの裏面に対向して設けられ、前記少なくとも1つの第1側壁の音響ドライバから離れた端部と、前記第2側壁の端部とは、前記曲面構造により接続される、ことを特徴とする請求項1に記載の音響出力装置。
- 前記少なくとも1つの放音孔は、前記少なくとも1つの第1側壁に位置する、ことを特徴とする請求項2に記載の音響出力装置。
- 前記少なくとも1つの放音孔は、前記少なくとも1つの第1側壁に位置するとともに、対向して設けられた第1放音孔と第2放音孔を含む、ことを特徴とする請求項2に記載の音響出力装置。
- 前記第2放音孔の断面積は、前記第1放音孔の断面積以下である、ことを特徴とする請求項4に記載の音響出力装置。
- 前記少なくとも1つの放音孔の断面積は、0.25mm2以上である、ことを特徴とする請求項1に記載の音響出力装置。
- 前記少なくとも1つの放音孔に音響減衰構造が設けられる、ことを特徴とする請求項1に記載の音響出力装置。
- 前記磁気回路構造は、前記振動膜に対向して設けられた磁束伝導プレートを含み、前記磁束伝導プレートは、前記振動膜の振動により発生する音声を前記音響ドライバの裏面から伝達する少なくとも1つの第3放音孔を含む、ことを特徴とする請求項1に記載の音響出力装置。
- 前記少なくとも1つの第3放音孔には、前記振動膜から離れた方向に沿って音導管が設けられ、前記音導管は、前記少なくとも1つの第3放音孔から放出された音声を前記リアキャビティに伝達する、ことを特徴とする請求項8に記載の音響出力装置。
- 前記少なくとも1つの第3放音孔は、内側から外側へ順に設けられた第1孔部と第2孔部を含み、前記第1孔部と前記第2孔部は、貫通し、前記第2孔部の直径は、前記第1孔部の直径より大きい、ことを特徴とする請求項8に記載の音響出力装置。
- 前記振動膜の形状は、平面又はほぼ平面である、ことを特徴とする請求項10に記載の音響出力装置。
- 前記振動膜は、前記リアキャビティから離れた方向に凹むエッジにより、前記音響ドライバに固定される、ことを特徴とする請求項11に記載の音響出力装置。
- 前記音響ドライバの正面には、前記振動膜に対向して設けられた保護構造がさらに設けられる、ことを特徴とする請求項1に記載の音響出力装置。
- 前記保護構造は、前記振動膜を外界から分離するとともに、前記振動膜が発する音声を外界に伝達できるように構成される、ことを特徴とする請求項13に記載の音響出力装置。
- 前記保護構造は、フィルター構造を含む、ことを特徴とする請求項14に記載の音響出力装置。
- 前記保護構造は、少なくとも1つの放音孔を有する板体構造を含む、ことを特徴とする請求項14に記載の音響出力装置。
- 前記音響ドライバの正面と前記ハウジング構造は、フロントキャビティを形成し、前記ハウジング構造は、少なくとも1つの第4音導孔を含み、前記第4音導孔は、前記振動膜が発する音声を前記音響ドライバの正面から前記音響出力装置の外部に伝達する、ことを特徴とする請求項1に記載の音響出力装置。
- 前記少なくとも1つの第4放音孔に音響減衰構造が設けられる、ことを特徴とする請求項17に記載の音響出力装置。
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JP2019047406A (ja) * | 2017-09-06 | 2019-03-22 | 株式会社Jvcケンウッド | イヤホン |
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