JPH0787638B2 - Speaker - Google Patents
SpeakerInfo
- Publication number
- JPH0787638B2 JPH0787638B2 JP62059323A JP5932387A JPH0787638B2 JP H0787638 B2 JPH0787638 B2 JP H0787638B2 JP 62059323 A JP62059323 A JP 62059323A JP 5932387 A JP5932387 A JP 5932387A JP H0787638 B2 JPH0787638 B2 JP H0787638B2
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- diaphragm
- joined
- sound
- voice coil
- 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 - Lifetime
Links
- 239000000428 dust Substances 0.000 description 3
- 230000005520 electrodynamics Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、各種音響製品に使用されるスピーカに関する
ものである。TECHNICAL FIELD The present invention relates to a speaker used for various audio products.
従来の技術 従来の外磁形の動電形スピーカは第３図のような構成と
なっていた。すなわち、ポールピース付プレート１の上
にドーナツ状のマグネット２を接合し、さらにマグネッ
ト２にトッププレート３を接合、ポールピース４とトッ
ププレートで磁気ギャップ５を構成する。磁気ギャップ
５には、周囲をフレーム６に固定したダンパー７で保持
したボイスコイル８の線輪９を周囲に触れないように配
する。ボイスコイル８には、振動板10を接合、振動板外
周はエッジ11を介してフレーム接合する。さらに振動板
中心付近には、磁気ギャップへのゴミの侵入を防ぐた
め、ダストキャップ12を接合する。以上が一般的な動電
形スピーカの構造である。2. Description of the Related Art A conventional external magnet type electrodynamic speaker has a structure as shown in FIG. That is, the doughnut-shaped magnet 2 is joined to the plate 1 with the pole piece, the top plate 3 is further joined to the magnet 2, and the pole piece 4 and the top plate form the magnetic gap 5. In the magnetic gap 5, a coil 9 of a voice coil 8 which is held by a damper 7 whose periphery is fixed to a frame 6 is arranged so as not to touch the periphery. A diaphragm 10 is joined to the voice coil 8, and the outer periphery of the diaphragm is joined to the frame via an edge 11. Further, a dust cap 12 is joined near the center of the diaphragm to prevent dust from entering the magnetic gap. The above is the structure of a general electrodynamic speaker.
第４図は、従来のスピーカの指向特性を改善する目的で
作られたスピーカである。これは、従来のスピーカに比
べ、振動板10の配置が異なり、振動板10中心が振動板外
周より突出する構成となっている。このように構成され
たスピーカは、振動板10の各部分からの音の受聴点にお
ける干渉が一般スピーカに比べ小さいので、音の拡散性
の良いスピーカが得られる。FIG. 4 shows a speaker made for the purpose of improving the directional characteristics of the conventional speaker. This is different from the conventional speaker in that the diaphragm 10 is arranged differently, and the center of the diaphragm 10 projects from the outer periphery of the diaphragm. In the speaker configured in this manner, the interference of the sound from each part of the diaphragm 10 at the listening point is smaller than that of the general speaker, so that the speaker with good sound diffusion can be obtained.
発明が解決しようとする問題点 しかし、このような構成のスピーカの用途は、音の拡散
性の良さを利用して、車載用ドアスピーカ，ハイ・ファ
イ用音場再生スピーカ等のように、受聴点がスピーカ中
心軸上にないものが主となる。したがって、これらの用
途においてスピーカが要求される特性は受聴点方向の一
方向における音圧−周波数特性がフラットである事と、
その他の方向ではたとえば音響パワーがフラットで音場
再生に適している事である。ところが従来のスピーカ，
振動板形状が円形あるいは楕円形，多角形形状のスピー
カは振動板の放射方向の断面形状が複数ケ所にわたり同
一であるので、前記した一方向のみ特定の音圧−周波数
特性を得るという事ができない欠点を有する。本発明は
この問題点を解決出来るスピーカを提供せんとするもの
である。Problems to be Solved by the Invention However, the use of the speaker having such a structure is such that it is possible to listen to a sound like a vehicle door speaker, a hi-fi sound field reproducing speaker, etc. by utilizing good sound diffusion. Most of the points are not on the center axis of the speaker. Therefore, the characteristics required of the speaker in these applications are that the sound pressure-frequency characteristic in one direction of the listening point is flat,
In other directions, for example, the sound power is flat and suitable for sound field reproduction. However, conventional speakers,
Speakers with a circular, elliptical, or polygonal diaphragm shape have the same cross-sectional shape in the radial direction of the diaphragm, so it is not possible to obtain a specific sound pressure-frequency characteristic in only one direction. It has drawbacks. The present invention is intended to provide a speaker that can solve this problem.
問題点を解決するための手段 そこで本発明では、振動板の放射方向の断面形状が左右
で異なるように二分した構成としたものである。Means for Solving the Problems Therefore, in the present invention, the diaphragm is divided into two parts such that the cross-sectional shape in the radial direction is different between left and right.
作 用 このような構成としたスピーカは、左右の各方向におい
て振動板形状がそれぞれ異なるため、左右の各方向の音
圧−周波数特性をそれぞれ差別化し、求める特性とする
ことができる。Operation Since the speaker having such a configuration has different diaphragm shapes in each of the left and right directions, the sound pressure-frequency characteristics in each of the left and right directions can be differentiated to obtain the desired characteristics.
実施例 第１図は本発明の実施例である。すなわち、ポールピー
ス付プレート１の上にマグネット２を接合、さらにマグ
ネット２にトッププレート３を接合する。磁気ギャップ
５には周囲をトッププレート３の上面に固定したダンパ
ー７で保持したボイスコイル８の線輪９を周囲に触れな
いように配する。ボイスコイル８には振動板10を接合
し、振動板外周はエッジ11を介してフレーム６に接合す
る。ボイスコイル８先端には、ダストキャップ12を接合
する。ここで、振動板10は左側半分は基本の振動板形状
10a、右半分は他の形状10bである。Embodiment FIG. 1 shows an embodiment of the present invention. That is, the magnet 2 is joined to the plate 1 with pole pieces, and the top plate 3 is joined to the magnet 2. In the magnetic gap 5, a coil 9 of a voice coil 8 held by a damper 7 whose periphery is fixed to the upper surface of the top plate 3 is arranged so as not to touch the periphery. A diaphragm 10 is joined to the voice coil 8, and an outer periphery of the diaphragm is joined to the frame 6 via an edge 11. A dust cap 12 is joined to the tip of the voice coil 8. Here, the left half of the diaphragm 10 is the basic diaphragm shape.
10a, the right half is another shape 10b.
第２図にそれぞれの音圧−周波数特性を示した。基本振
動板10aは音場再生を主目的とするので、再生帯域は10K
Hz以下とし、異形状部分の振動板10bは受聴方向の部分
なので再生帯域を15KHzと設定した例である。特性はい
ずれも45゜方向の指向特性である。FIG. 2 shows the respective sound pressure-frequency characteristics. Since the basic diaphragm 10a is mainly for sound field reproduction, the reproduction band is 10K.
This is an example in which the reproduction band is set to 15 KHz since the vibration plate 10b having a different shape is in the listening direction because the vibration frequency is set to 15 Hz or less. All characteristics are directional characteristics in the 45 ° direction.
発明の効果 近年音場再生の重要性が認識され、音場を理想的に再現
するために、２本のスピーカの中心軸を傾斜させたコア
キシャルスピーカ，複数のスピーカを同じく中心軸を傾
斜させて取り付けたスピーカシステム等がもてはやされ
ているが、本発明のスピーカは、これらの複数のスピー
カを一本のスピーカで代替することができる画期的なも
のであり、振動板の放射方向の断面形状を変化させるこ
とによって受聴方向に対応して音圧−周波数特性と指向
特性を調整し、優れた音場再生を行うことができ、これ
らの音場再生システムの小型化，低価格化に大きな効果
を持たらす事のできる工業的価値の大なる発明である。EFFECTS OF THE INVENTION In recent years, the importance of sound field reproduction has been recognized, and in order to ideally reproduce a sound field, a coaxial speaker in which the central axes of two speakers are tilted, and a plurality of speakers are similarly tilted in the central axis. Although the attached speaker system is touted, the speaker of the present invention is an epoch-making one in which a plurality of these speakers can be replaced by one speaker, and the cross-sectional shape of the diaphragm in the radial direction. By adjusting the sound pressure-frequency characteristics and directional characteristics according to the listening direction, excellent sound field reproduction can be performed, which is a great effect on downsizing and cost reduction of these sound field reproduction systems. It is an invention of great industrial value that can bring out the value.
第１図は本発明スピーカの断面図、第２図は本発明スピ
ーカの45゜方向の音圧−周波数特性図、第３図は一般的
な外磁形の動電形スピーカの断面図、第４図は指向特性
を改善したスピーカの断面図である。 １……ポールピース付プレート、２……マグネット、３
……トッププレート、５……磁気ギャップ、６……フレ
ーム、７……ダンパー、８……ボイスコイル、９……ボ
イスコイル線輪、10a,10b……振動板。FIG. 1 is a sectional view of the speaker of the present invention, FIG. 2 is a sound pressure-frequency characteristic diagram of the speaker of the present invention in the 45 ° direction, and FIG. 3 is a sectional view of a general outer magnet type electrodynamic speaker. FIG. 4 is a sectional view of a speaker with improved directional characteristics. 1 ... Plate with pole piece, 2 ... Magnet, 3
...... Top plate, 5 ...... Magnetic gap, 6 ...... Frame, 7 ...... Damper, 8 ...... Voice coil, 9 ...... Voice coil loop, 10a, 10b ...... Vibration plate.
Claims (1)
ように構成したスピーカにおいて、上記振動板を放射方
向の断面形状が左右で異なるように二分して構成した事
を特徴とするスピーカ。1. A speaker configured such that a center of a diaphragm protrudes from an outer periphery of the diaphragm, wherein the diaphragm is divided into two parts so that a cross-sectional shape in a radial direction is different between left and right. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62059323A JPH0787638B2 (en) | 1987-03-13 | 1987-03-13 | Speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62059323A JPH0787638B2 (en) | 1987-03-13 | 1987-03-13 | Speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63224590A JPS63224590A (en) | 1988-09-19 |
| JPH0787638B2 true JPH0787638B2 (en) | 1995-09-20 |
Family
ID=13110034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62059323A Expired - Lifetime JPH0787638B2 (en) | 1987-03-13 | 1987-03-13 | Speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0787638B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004034882B4 (en) * | 2004-07-19 | 2015-08-27 | Norman Gerkinsmeyer | driver |
| JP4706472B2 (en) * | 2005-01-20 | 2011-06-22 | 日本ビクター株式会社 | Spherical shell diaphragm and electroacoustic transducer |
| JP4706471B2 (en) * | 2005-01-20 | 2011-06-22 | 日本ビクター株式会社 | Diaphragm and electroacoustic transducer |
| JP4595808B2 (en) * | 2005-01-20 | 2010-12-08 | 日本ビクター株式会社 | Electroacoustic transducer manufacturing method |
| JP4993016B2 (en) * | 2005-01-20 | 2012-08-08 | 株式会社Ｊｖｃケンウッド | Spherical shell diaphragm and electroacoustic transducer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60145791U (en) * | 1984-03-09 | 1985-09-27 | オンキヨー株式会社 | dome type speaker |
-
1987
- 1987-03-13 JP JP62059323A patent/JPH0787638B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63224590A (en) | 1988-09-19 |
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