JP6340427B2 - 複合スピーカ装置 - Google Patents
複合スピーカ装置 Download PDFInfo
- Publication number
- JP6340427B2 JP6340427B2 JP2016535619A JP2016535619A JP6340427B2 JP 6340427 B2 JP6340427 B2 JP 6340427B2 JP 2016535619 A JP2016535619 A JP 2016535619A JP 2016535619 A JP2016535619 A JP 2016535619A JP 6340427 B2 JP6340427 B2 JP 6340427B2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- diaphragm
- absorbing material
- speaker unit
- speaker device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims description 89
- 239000011358 absorbing material Substances 0.000 claims description 99
- 230000005855 radiation Effects 0.000 claims description 62
- 238000009434 installation Methods 0.000 claims description 9
- 230000000644 propagated effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 10
- 230000010363 phase shift Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 6
- 230000001902 propagating effect Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
- H04R9/063—Loudspeakers using a plurality of acoustic drivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
RL1=(2n+1)×λ(1/2±1/16)・・・(1)
(1)式における「λ」は重なり周波数に対応する波長であり、「n」は自然数である。
10,16 低音用スピーカユニット
11,16a 低音用振動板
11a 開口
12 低音用フレーム
13 低音用ダンパ
14 低音用ボイスコイル
15 低音用磁気回路
20,26 高音用スピーカユニット
21,26a 高音用振動板
22 高音用フレーム
23 高音用ダンパ
24 高音用ボイスコイル
25 高音用磁気回路
30,35,36,51,61 吸音材
Claims (4)
- 第1の振動板を有する第1のスピーカユニットと、
前記第1の振動板の音放射方向に設置された、前記第1の振動板より径が小さい第2の振動板を有する第2のスピーカユニットと、
を備え、
前記第1のスピーカユニットと前記第2のスピーカユニットとの双方から互いに同周波で放射される音の波長をλで表記し、自然数をnで表記したとき、
前記第1の振動板の音放射方向の表面のうち、前記第2の振動板の音放射方向の表面から前記第1の振動板の音放射方向の表面に伝搬して反射した音の伝搬経路と前記第2の振動板の音放射方向の表面から放射する音の伝搬経路との伝搬経路差の長さが(2n+1)×λ(1/2±1/16)となる箇所を含む設置範囲内に、少なくとも1箇所に吸音材が配置されていることを特徴とする複合スピーカ装置。 - 前記第1の振動板の音放射方向の表面のうち、前記伝搬経路差の長さが(2n+1)×λ(1/2−1/16)〜(2n+1)×λ(1/2+1/16)となる範囲内に、少なくとも1箇所に前記吸音材が配置されていることを特徴とする請求項1に記載の複合スピーカ装置。
- 前記第1の振動板の音放射方向の表面のうち、前記伝搬経路差の長さが(2n+1)×λ(1/2)となる箇所の近傍に、少なくとも1箇所に前記吸音材が配置されていることを特徴とする請求項2に記載の複合スピーカ装置。
- 前記自然数nが0であることを特徴とする請求項3に記載の複合スピーカ装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/069754 WO2016013122A1 (ja) | 2014-07-25 | 2014-07-25 | 複合スピーカ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2016013122A1 JPWO2016013122A1 (ja) | 2017-05-25 |
JP6340427B2 true JP6340427B2 (ja) | 2018-06-06 |
Family
ID=55162674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016535619A Expired - Fee Related JP6340427B2 (ja) | 2014-07-25 | 2014-07-25 | 複合スピーカ装置 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3174311A4 (ja) |
JP (1) | JP6340427B2 (ja) |
WO (1) | WO2016013122A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021119914A1 (zh) * | 2019-12-16 | 2021-06-24 | 瑞声声学科技(深圳)有限公司 | 一种振膜及扬声器 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4497981A (en) * | 1982-06-01 | 1985-02-05 | Harman International Industries Incorporated | Multi-driver loudspeaker |
US5062139A (en) * | 1989-06-05 | 1991-10-29 | Christensen Eugene J | Coaxial loud speaker system |
DE19728329C2 (de) * | 1997-07-03 | 1999-05-27 | Wolfgang Seikritt | Lautsprecheranordnung |
JP2008263257A (ja) * | 2007-04-10 | 2008-10-30 | Matsushita Electric Ind Co Ltd | 複合型スピーカ |
ES2344756T3 (es) * | 2007-08-14 | 2010-09-06 | Klaus Reck | Altavoz coaxial. |
-
2014
- 2014-07-25 JP JP2016535619A patent/JP6340427B2/ja not_active Expired - Fee Related
- 2014-07-25 EP EP14898320.8A patent/EP3174311A4/en not_active Withdrawn
- 2014-07-25 WO PCT/JP2014/069754 patent/WO2016013122A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP3174311A1 (en) | 2017-05-31 |
JPWO2016013122A1 (ja) | 2017-05-25 |
WO2016013122A1 (ja) | 2016-01-28 |
EP3174311A4 (en) | 2018-02-28 |
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