JPS62237900A - Plane speaker unit - Google Patents
Plane speaker unitInfo
- Publication number
- JPS62237900A JPS62237900A JP8130486A JP8130486A JPS62237900A JP S62237900 A JPS62237900 A JP S62237900A JP 8130486 A JP8130486 A JP 8130486A JP 8130486 A JP8130486 A JP 8130486A JP S62237900 A JPS62237900 A JP S62237900A
- Authority
- JP
- Japan
- Prior art keywords
- node
- voice coil
- speaker unit
- resonance
- coupling cone
- 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
- 230000008878 coupling Effects 0.000 abstract description 9
- 238000010168 coupling process Methods 0.000 abstract description 9
- 238000005859 coupling reaction Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、動電型平面スピーカユニットに関する。[Detailed description of the invention] Industrial applications The present invention relates to an electrodynamic planar speaker unit.
従来の技術 第２図に従来の平面スピーカユニットを示す。Conventional technology FIG. 2 shows a conventional flat speaker unit.
１は平面振動板、２はカップリングコーン、３はボイス
コイル、４はフレーム、６はトラフフレート、６はマグ
ネット、７はバックプレート、８はエツジ、９はダンパ
ーであり、ボイスコイルの駆動力はカップリングコーン
を介して平面振動板に伝えられる。平面スピーカユニッ
トは前室効果がなく、振動モードが単純で理論値と合致
し易く。1 is a plane diaphragm, 2 is a coupling cone, 3 is a voice coil, 4 is a frame, 6 is a trough plate, 6 is a magnet, 7 is a back plate, 8 is an edge, 9 is a damper, and the driving force of the voice coil is transmitted to the plane diaphragm via the coupling cone. Planar speaker units have no front chamber effect, have simple vibration modes, and easily match theoretical values.
音源として理想に近いものである。This is close to ideal as a sound source.
発明が解決しようとする問題点
上記従来の技術によれば平面振動板はハニカム構造にす
る等、高剛性にしてピストンモーション領域を広げてい
るが、第２図のような第１次の共振モードを節駆動する
方式の平面スピーカユニットでは第２次の共振モードで
第３図の特性曲線１３のように共振を生じ周波数特性で
ピークができる。平面振動板ではピストンモーション領
域ヲ狭めることなく、高次の共振モードでの共振を低減
することが望まれている。Problems to be Solved by the Invention According to the above-mentioned conventional technology, the planar diaphragm has a honeycomb structure, etc., which increases the rigidity and expands the piston motion range, but the first-order resonance mode as shown in Fig. 2 In a planar speaker unit of the mode of node driving, resonance occurs in the second-order resonance mode as shown in the characteristic curve 13 in FIG. 3, and a peak occurs in the frequency characteristic. In a planar diaphragm, it is desired to reduce resonance in higher-order resonance modes without narrowing the piston motion range.
問題点を解決するための手段
上記問題点を解決するために本発明のスピーカユニット
は、ボイスコイルと平面振動板の節との連結部材を節に
より音速の異なる材質で構成するものである。Means for Solving the Problems In order to solve the above-mentioned problems, the speaker unit of the present invention is such that the connection member between the voice coil and the nodes of the plane diaphragm is made of a material that has different sound speeds depending on the nodes.
作 用
本発明は上記した構成によって、節により連結部材の音
速が異なる為に、高域周波数で、それぞれの節への伝達
が異なって、高次の共振モードで共振点が分散されるよ
うにしたものである。Effect: Due to the above-described configuration, the present invention is configured so that since the sound speed of the connecting member differs depending on the nodes, the transmission to each node is different at high frequencies, and the resonance points are dispersed in high-order resonance modes. This is what I did.
実施例 以下、本発明の実施例について図面を用いて説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
第１図に本発明の平面スピーカユニットの一実施例を示
すが従来例に示すものと同じ部材には同一符号を用いそ
の説明は省略する。１０は平面振動板の第１次の節であ
り、１１は平面振動板の第２次の節、１２は第２次の節
とボイスコイルを連結するカップリングコーンであり、
カップリングコーン２とは音速の違う材質で構成される
。FIG. 1 shows an embodiment of the flat speaker unit of the present invention, and the same members as those shown in the conventional example are designated by the same reference numerals, and their explanations will be omitted. 10 is a first order node of the plane diaphragm, 11 is a second order node of the plane diaphragm, 12 is a coupling cone that connects the second order node and the voice coil,
The coupling cone 2 is made of a material with a different sound velocity.
第３図の特性曲線１４に示すように、本実施例によれば
、高次の共振が分散され、共振が低減できる。このこと
によりスピーカユニットとしての完成度は高まり、スピ
ーカシステムとして使用する場合も共振がなく、優れた
音質性能を得ることができる。As shown in the characteristic curve 14 in FIG. 3, according to this embodiment, higher-order resonance is dispersed and resonance can be reduced. This increases the degree of perfection as a speaker unit, and when used as a speaker system, there is no resonance and excellent sound quality performance can be obtained.
発明の効果
以上のように本発明の平面スピーカユニットによれば、
高次の共振が分散され、共振が低減できる。このことに
よりスピーカユニットとしての完成度は高まり、スピー
カシステムとして重用する場合も共振がなく、優れた音
質性能を得ることができる。According to the flat speaker unit of the present invention, as described above, the effects of the invention are as follows.
High-order resonance is dispersed and resonance can be reduced. This increases the degree of perfection as a speaker unit, and even when used as a speaker system, there is no resonance and excellent sound quality performance can be obtained.
第１図は本発明の一実施例の平面スピーカユニットの側
断面図、第２図は従来の平面スピーカユニットの１ｌｌ
ｉＩ！断面図、第３図は本発明の実施例の平面スピーカ
ユニットと従来のスピーカユニットの周波数特性上の差
異を示す特性図である。
１・・・・・・平面振動板、２・・・・・・カップリン
グコーン、３・・・・・・ホイスコイル、４・・・・・
・フレーム、６・・・・・・トッププレート、６・・・
・・・マグネット、７・・・・・・バックプレート、８
・・・・・・エツジ、ｅ・・・・・・ダンバー、１０・
・・・・・平面振動板の第１の節、１１・・・・・・平
面振動板の第２次の節、１２・・・・・・第２次の節を
連結するカップリングコーン。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名３−
ボイスコイル ？−タンバー４− フレーム
１０− 平面振動板の第２図FIG. 1 is a side sectional view of a flat speaker unit according to an embodiment of the present invention, and FIG. 2 is a 1ll side view of a conventional flat speaker unit.
iI! The cross-sectional view and FIG. 3 are characteristic diagrams showing the difference in frequency characteristics between the flat speaker unit according to the embodiment of the present invention and the conventional speaker unit. 1...Flat diaphragm, 2...Coupling cone, 3...Wheel coil, 4...
・Frame, 6...Top plate, 6...
...Magnet, 7...Back plate, 8
...Etsuji, e...Dunbar, 10.
. . . A first node of a plane diaphragm, 11 . . . A second node of a plane diaphragm, 12 . Name of agent: Patent attorney Toshio Nakao and 1 other person3-
Voice coil? -Tamber 4- Frame
10- Diagram 2 of a plane diaphragm
Claims (1)
するボイスコイルと、前記複数の節とボイスコイルの間
に介在させた連結部材とを備え、この連結部材はそれぞ
れ音速の異なる材質で構成してなる平面スピーカユニッ
ト。The device includes a planar diaphragm having a plurality of nodes, a voice coil that drives the planar diaphragm, and a connecting member interposed between the plurality of nodes and the voice coil, and each of the connecting members is made of a material having a different sound speed. A flat speaker unit made up of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8130486A JPS62237900A (en) | 1986-04-09 | 1986-04-09 | Plane speaker unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8130486A JPS62237900A (en) | 1986-04-09 | 1986-04-09 | Plane speaker unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62237900A true JPS62237900A (en) | 1987-10-17 |
Family
ID=13742650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8130486A Pending JPS62237900A (en) | 1986-04-09 | 1986-04-09 | Plane speaker unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62237900A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011524710A (en) * | 2008-06-17 | 2011-09-01 | ニュー トランスデューサーズ リミテッド | Improved acoustic device |
| GB2492165A (en) * | 2011-06-24 | 2012-12-26 | Canon Kk | Driving a loudspeaker diaphragm at nodal positions |
| JP5372012B2 (en) * | 2008-11-19 | 2013-12-18 | パナソニック株式会社 | Speaker and electronic device equipped with speaker |
-
1986
- 1986-04-09 JP JP8130486A patent/JPS62237900A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011524710A (en) * | 2008-06-17 | 2011-09-01 | ニュー トランスデューサーズ リミテッド | Improved acoustic device |
| US9525946B2 (en) | 2008-06-17 | 2016-12-20 | Flat Audio Technologies Llc | Acoustic device |
| JP5372012B2 (en) * | 2008-11-19 | 2013-12-18 | パナソニック株式会社 | Speaker and electronic device equipped with speaker |
| GB2492165A (en) * | 2011-06-24 | 2012-12-26 | Canon Kk | Driving a loudspeaker diaphragm at nodal positions |
| GB2492165B (en) * | 2011-06-24 | 2014-05-28 | Canon Kk | A loudspeaker driver and a method of using same |
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