JPS60178799A - Wide band reproducing speaker - Google Patents
Wide band reproducing speakerInfo
- Publication number
- JPS60178799A JPS60178799A JP3164684A JP3164684A JPS60178799A JP S60178799 A JPS60178799 A JP S60178799A JP 3164684 A JP3164684 A JP 3164684A JP 3164684 A JP3164684 A JP 3164684A JP S60178799 A JPS60178799 A JP S60178799A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- voice coil
- cone
- flat plate
- fixed
- 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.)
- Pending
Links
Classifications
-
- 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
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分Ｗ工
本発明はハイファイオーティオやカーオーティオなどに
利用される広帯域肖生スピーカに関するものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a wideband portrait speaker used in high-fidelity audio, car audio, and the like.
従来例の構成とその問題点
第１図に従来の構成による広帯域再生スピーカの一例を
示す。１はポールピース付プレート、２はリング状マグ
ネント、３はｌ・ツブプレートで、以上により磁気回路
１１を構成し、この磁気回路１１には磁気ギャップ１２
が形成される。４は磁気回路１１に結合されたフレーム
、６はボイスコイル、６はダンパー、了はコーン振動板
で下部ネック部はボイスコイル５に、上部は図示のよう
にコルゲーンヨン等の手段によりコンプライアンスを持
ちつつフレーム４に接着等の手段により固着される。８
はライザーコーンと称され、高音再生の目的を持つサブ
コーン、９は防塵キャップ、１゜はガスクノトである。Conventional configuration and its problems FIG. 1 shows an example of a wideband reproduction speaker with a conventional configuration. 1 is a plate with a pole piece, 2 is a ring-shaped magnet, and 3 is an l-tube plate, which constitutes a magnetic circuit 11, and this magnetic circuit 11 has a magnetic gap 12.
is formed. 4 is a frame connected to the magnetic circuit 11, 6 is a voice coil, 6 is a damper, 3 is a cone diaphragm, the lower neck part is connected to the voice coil 5, and the upper part is made to have compliance by means such as a corrugated iron as shown in the figure. It is fixed to the frame 4 by adhesive or other means. 8
is called a riser cone and is a sub-cone for the purpose of high-frequency sound reproduction, 9 is a dustproof cap, and 1° is a gas cone.
このような従来の構成による問題点としては低域を再生
するコーン振動板７と高域を再生するライザーコーン８
との隙間（図中でＬ）が製造でバラツキやすいが、この
隙間が僅かに異るだけで周波数特性がコーン振動板７と
ライザーコーン８の位相差のため大きく異ってしまう可
能性がある。Problems with this conventional configuration include the cone diaphragm 7 that reproduces low frequencies and the riser cone 8 that reproduces high frequencies.
The gap between the cone diaphragm 7 and the riser cone 8 (L in the diagram) tends to vary due to manufacturing, but even a slight difference in this gap can cause the frequency characteristics to vary greatly due to the phase difference between the cone diaphragm 7 and the riser cone 8. .
またこのような構成の場合、コーン振動板７とライザー
コーン８の再生周波数の分割周波数は一般的にライザー
コーン８の再生帯域は非常に狭いのでクロスオーバは高
くなり、従ってコーン振動板７は非常に注形が必要とな
り、従ってスピーカとして全高の高いものになり、全高
の低い残影のスピーカは従来の構成の広帯域スピーカで
は困難であった。In addition, in such a configuration, the division frequency of the reproduction frequency of the cone diaphragm 7 and the riser cone 8 is generally such that the crossover is high because the reproduction band of the riser cone 8 is very narrow. This requires casting, which results in a speaker with a high overall height, and it is difficult to create a speaker with a low overall height and a residual shadow with a wideband speaker with a conventional configuration.
発明の目的
本発明は上記の従来構成の欠点を除去するものであり、
簡単な構造でバラツキの少ない、又広帯域再生が可能で
全高も低くし得る広帯域再生スピーカを提供するもので
ある。OBJECTS OF THE INVENTION The present invention eliminates the drawbacks of the above-mentioned conventional configurations.
To provide a wideband reproducing speaker that has a simple structure, has little variation, can reproduce a wideband, and can have a low overall height.
発明の構成
上記目的を達成するために本発明は高音再生用として、
ボイスコイル上端に平板状振動板の第−又は第二共振周
波数の節を載置し接着等の手段によりボイスコイルに固
着し、平板状振動板の外周端はコルゲーションエツジや
あるいは粘弾性の接着剤等を介してコーン振動板と結合
させる構成としたものである。なお、平板状振動板とし
てはハニカム構造や、軽量発泡樹脂を箔でサンドウィッ
チした構成のものが例示−される。Structure of the Invention In order to achieve the above object, the present invention provides the following features for high frequency reproduction.
The node of the second or second resonant frequency of the flat diaphragm is placed on the upper end of the voice coil and fixed to the voice coil by adhesive or other means, and the outer peripheral edge of the flat diaphragm is covered with a corrugation edge or a viscoelastic adhesive. The structure is such that the cone diaphragm is coupled to the cone diaphragm via a diaphragm or the like. Examples of the flat diaphragm include a honeycomb structure and a structure in which lightweight foamed resin is sandwiched between foils.
実施例の説明 以下本発明の実施例を第２図を用いて説明する。Description of examples Embodiments of the present invention will be described below with reference to FIG.
１３はポールピース付フレートでポールピースの中心に
は貫通孔１４を設けることが望ましい。１５はリング状
磁石、１６はトッププレートで、これらで磁気回路１７
を構成し、この磁気回路１７には磁気ギャップ１８が形
成される。１９はこの磁気回路１７に結合されたフレー
ム、２０は上記磁気ギャップ１Ｂには捷りこむボイスコ
イル、２１ばこのボイスコイル２ｏを支持するダンパー
、２２はコーン振動板、２３は本発明の特徴とする平
板振動板で、ボイスコイル２０ Ｋは本例の場合には平
板振動板２３の有効径Ｄ２の約６７％の第−共振線径Ｄ
１ｖ′ｃて接着等の手段により固着され、外周はコルゲ
ーションエツジ２４を経由してコーン振動板２２に接着
により固着される。２６はガスフットである。13 is a plate with a pole piece, and it is desirable that a through hole 14 is provided in the center of the pole piece. 15 is a ring-shaped magnet, 16 is a top plate, and these form a magnetic circuit 17.
A magnetic gap 18 is formed in this magnetic circuit 17. 19 is a frame coupled to this magnetic circuit 17, 20 is a voice coil inserted into the magnetic gap 1B, 21 is a damper that supports the voice coil 2o of the cigarette, 22 is a cone diaphragm, and 23 is a feature of the present invention. In this example, the voice coil 20K has a resonant wire diameter D that is approximately 67% of the effective diameter D2 of the flat diaphragm 23.
1v'c and is fixed by adhesive or other means, and the outer periphery is fixed to the cone diaphragm 22 via the corrugation edge 24 by adhesive. 26 is a gas foot.
発明の効果
以上のように本発明の広帯域再生スピーカはコーン振動
板と平板振動板との相互位置のバラツキが少なく音響的
な相互干渉による音波の乱れが少なく、周波数特性のバ
ラツキの少ないものになるばかりか、平板振動板の節を
ボイスコイルで直接駆動できることから平板振動板によ
り広い帯域にわたる再生が可能で、コーン振動板の浅い
、すなわち薄形の形状で広帯域にわたり一様に再生かで
きることになり工業的価値の犬なるものである。Effects of the Invention As described above, the broadband reproduction speaker of the present invention has less variation in the mutual positions of the cone diaphragm and the flat diaphragm, and has less disturbance of sound waves due to mutual acoustic interference, resulting in less variation in frequency characteristics. Furthermore, since the nodes of the flat diaphragm can be directly driven by the voice coil, the flat diaphragm can reproduce a wide range of frequencies, and the shallow or thin shape of the cone diaphragm allows for uniform reproduction over a wide range of frequencies. It is a dog of industrial value.
第１図は従来構成の広帯域再生スピーカの断面図、第２
図は本発明の一実施例による広帯域再生スピーカの断面
図である。
１７・・・磁気回路、１８−−・磁気ギャップ、１９・
・・−フレーム、２ｏ・ ホイスコイル、２１−ダンパ
ー、２２・・・コーン振動板、２３−ｍ−・平板振動＆
、２４−・・ コルゲーションエツジ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第
１ 図
第２図Figure 1 is a cross-sectional view of a wideband reproducing speaker with a conventional configuration;
The figure is a sectional view of a broadband reproduction speaker according to an embodiment of the present invention. 17...Magnetic circuit, 18--Magnetic gap, 19-
...-Frame, 2o・whisker coil, 21-damper, 22...cone diaphragm, 23-m-・flat plate vibration &
, 24-... Corrugation edge. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2
Claims (1)
ビンの」二輪を平板振動板の第−共振又は第二共振の節
に固着し、上記ボイスコイルの中間部にはコーン振動板
のネック部が固着され、このコーン振動板と平板振動板
とは適当なコンプライアンスを伴って結合した広帯域再
生スピーカ。The two wheels of the bobbin of the voice coil that fit into the magnetic gear knob of the magnetic circuit are fixed to the first resonance or second resonance node of the flat plate diaphragm, and the neck part of the cone diaphragm is fixed to the middle part of the voice coil. This cone diaphragm and flat diaphragm are combined with appropriate compliance to create a wideband reproduction speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3164684A JPS60178799A (en) | 1984-02-22 | 1984-02-22 | Wide band reproducing speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3164684A JPS60178799A (en) | 1984-02-22 | 1984-02-22 | Wide band reproducing speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60178799A true JPS60178799A (en) | 1985-09-12 |
Family
ID=12336950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3164684A Pending JPS60178799A (en) | 1984-02-22 | 1984-02-22 | Wide band reproducing speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60178799A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330092U (en) * | 1986-08-12 | 1988-02-27 | ||
| JPS6352375U (en) * | 1986-09-24 | 1988-04-08 |
-
1984
- 1984-02-22 JP JP3164684A patent/JPS60178799A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330092U (en) * | 1986-08-12 | 1988-02-27 | ||
| JPS6352375U (en) * | 1986-09-24 | 1988-04-08 |
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