JPS6085698A - flat speaker - Google Patents
flat speakerInfo
- Publication number
- JPS6085698A JPS6085698A JP58193697A JP19369783A JPS6085698A JP S6085698 A JPS6085698 A JP S6085698A JP 58193697 A JP58193697 A JP 58193697A JP 19369783 A JP19369783 A JP 19369783A JP S6085698 A JPS6085698 A JP S6085698A
- Authority
- JP
- Japan
- Prior art keywords
- flat
- drive cone
- flat speaker
- edge
- magnetic circuit
- 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は各種音響機器に利用する平面スピーカに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a flat speaker used in various types of audio equipment.
従来例の構成とその問題点
一般に平面スピーカは第１図に示すように構成されてい
た。Conventional configurations and their problems Generally, flat speakers are configured as shown in FIG.
すなわち、センターポール１を有するプレート２上にリ
ング状のマグネット３と、同じくリング状の上部プレー
ト４を積層し結合して構成した磁気回路５上にフレーム
６を結合し、このフレーム６の周縁部にガスケット７と
ともにフリーエツジなどのエツジ８を取付け、このエツ
ジ８に平板振動板９の周縁部を結合し、この平板振動板
９の下面にドライブコーン１０を結合し、このドライブ
コーン１ｏの中央部に上記磁気回路５の磁気ギャップ１
１にはまりこむボイスコイル１２を結合し、このボイス
コイル１２をダンパー１３で保持して構成されていた。That is, a frame 6 is coupled onto a magnetic circuit 5 constructed by laminating and coupling a ring-shaped magnet 3 on a plate 2 having a center pole 1 and a ring-shaped upper plate 4, and the peripheral edge of this frame 6 is An edge 8 such as a free edge is attached together with the gasket 7 to the edge 8, the peripheral edge of the flat diaphragm 9 is connected to the edge 8, a drive cone 10 is connected to the lower surface of the flat diaphragm 9, and the center part of the drive cone 1o is connected to the edge 8. Magnetic gap 1 of the magnetic circuit 5
1 and a voice coil 12 that fits into the damper 1 is coupled to the voice coil 12 and held by a damper 13.
このような平面スピーカにおいて、従来のドライブコー
ン１０としては、第２図に示すように板状の素材を金型
で加熱成形したり、第３図に示すように扇状の薄板をコ
ーン状にして両端を貼合せて構成したものを用いていた
。In such a flat speaker, the conventional drive cone 10 is made by heating and molding a plate-shaped material with a mold as shown in Fig. 2, or by forming a fan-shaped thin plate into a cone shape as shown in Fig. 3. A structure in which both ends were bonded together was used.
通常、このドライブコーン１ｏは音響特性上から材質が
限定され、したかって素材を加熱成形する場合には素材
の伸びが足シないため深絞シ成形ができず、また、貼合
せの場合は高さ寸法の大きいものが任意に得られるがこ
のドライブコ一７１０を製造するに当っては貼合せ金型
が大型化し、完成捷での工程時間が長くなるといった問
題と、いずれのものも質量が大きく音圧レベルを向上さ
せることができないといった問題があった。Normally, the material of this drive cone 1o is limited due to its acoustic properties, and therefore, when heat forming the material, the material does not stretch sufficiently, so deep drawing cannot be performed, and when laminating it, high However, in manufacturing this drive unit 710, there are problems such as the bonding mold becomes large and the process time for completion becomes long, and both of them have a large mass. There was a problem that the sound pressure level could not be significantly improved.
発明の目的
本発明は以上のような従来の欠点を除去するものであり
、深絞−りの成形が可能で、製作が容易でしかも軽量な
ドライブコーンを用いた平面スピーカを提供することを
目的とするものである。Purpose of the Invention The purpose of the present invention is to eliminate the above-mentioned conventional drawbacks, and to provide a flat speaker using a drive cone that can be formed by deep drawing, is easy to manufacture, and is lightweight. That is.
発明の構成
上記目的を達成するために本発明の平面スピーカは、磁
気回路に結合されたフレームの周縁部にエツジを介して
平板振動板を結合し、中間部に変形扇状の窓孔を設けて
螺旋状の機部を有しこの機部に補強リブを形成したドラ
イブコーンを上記平板振動板の下面に結合し、このドラ
イブコーンの中央部に上記磁気回路の磁気ギャップには
まりこむボイスコイルを結合した構成とし、ドライブコ
ーンの絞り加工を容易にかつ深絞シ可能とし、質量の低
減化を計ったものである。Structure of the Invention In order to achieve the above object, the flat speaker of the present invention has a flat diaphragm connected via an edge to the peripheral edge of a frame connected to a magnetic circuit, and a deformed fan-shaped window hole provided in the middle part. A drive cone having a spiral mechanical part and reinforcing ribs formed on the mechanical part is coupled to the lower surface of the flat diaphragm, and a voice coil that fits into the magnetic gap of the magnetic circuit is coupled to the center of the drive cone. With this structure, the drive cone can be easily and deep drawn, and the mass can be reduced.
実施例の説明
以下、本発明の平面スピーカの一実施例を第４図、第５
図を用いて説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the flat speaker of the present invention will be described below as shown in FIGS. 4 and 5.
This will be explained using figures.
なお、平面スピーカの全体構造としては、第１図で説明
したものと実質的に同一であるためここでは説明を省略
し特徴とするドライブコーン１０の構造についてのみ説
明する。The overall structure of the planar speaker is substantially the same as that explained in FIG. 1, so the explanation will be omitted here and only the characteristic structure of the drive cone 10 will be explained.
、 このドライブコーン１ｏは、第４図に示すように全
体的に逆円錐台状をしており、上部に平板振動板９に結
合する大径の結合部１０ａをもち、下部にボイスコイル
１２を結合する結合部１０ｂをもち、その中間の円錐面
に変形扇状の窓孔１０ｃを数個設けて、との窓孔１０
ｃ間にその残部としての螺旋状の機部１０ｄを設け、こ
の機部１０ｄに補強リブ１０ｅを設けて構成されている
。As shown in FIG. 4, this drive cone 1o has an inverted truncated cone shape as a whole, and has a large-diameter coupling portion 10a coupled to the flat diaphragm 9 at the top, and a voice coil 12 at the bottom. The window hole 10 has a joining part 10b to be joined, and several deformed fan-shaped window holes 10c are provided on the conical surface in the middle thereof.
A spiral machine part 10d is provided as the remainder between c and a reinforcing rib 10e is provided on this machine part 10d.
このような構成のドライブコーン１０は、第５図に示す
ように、アルミニウムなどの板状の累月から変形扇状の
窓孔１０ｃを設けるとともに機部１０ｄに補強リブ１０
ｅを形成させた構成に打抜き加工し、これを逆円錐台
状に加熱成形して製造される。As shown in FIG. 5, the drive cone 10 having such a configuration is provided with a deformed fan-shaped window hole 10c made of a plate-shaped moon made of aluminum or the like, and a reinforcing rib 10 on the machine part 10d.
It is manufactured by punching into a configuration having the shape e, and then heating and molding it into an inverted truncated cone shape.
上記のように機部１０ｄを螺旋状とすることにより、加
熱成形時に素材が円周方向に回転し、成形ひずみを円周
方向に逃がすことができる。また変形扇状の窓孔１０ｃ
が設けられているため、ひずみを全て吸収することがで
き、したがって深絞りの成形が可能となる。By forming the machine portion 10d in a spiral shape as described above, the material rotates in the circumferential direction during heat forming, and molding strain can be released in the circumferential direction. In addition, a modified fan-shaped window hole 10c
Since this is provided, it is possible to absorb all the strain, thus making deep drawing possible.
発明の効果
以上のように本発明の平面スピーカは構成されるため、
変形扇状の窓孔による螺旋状の機部で深絞シ成形が可能
で、その製作も容易でコスト面でも著しく有利となり、
かつ、窓孔の分の質量が軽減できて振動系の質量を低減
できることから平面スピーカの音圧周波数特性における
音圧レベルを向上させることができるなどの効果をもち
、工業的価値の大なるものである。Since the planar speaker of the present invention is configured as described above,
Deep drawing is possible with the spiral machine part with modified fan-shaped window holes, and it is easy to manufacture and extremely cost-effective.
In addition, since the mass of the window hole can be reduced and the mass of the vibration system can be reduced, it has the effect of improving the sound pressure level in the sound pressure frequency characteristics of the flat speaker, and is of great industrial value. It is.
第１図は一般的な平面スピーカを示す断面図、第２図、
第３図は従来の平面スピーカに用いるドライブコーンの
正面図、第４図は本発明の平面スピーカに用いるドライ
ブコーンの一実施例を示す正面図、第５図は同ドライブ
コーンの成形前の上面図である。
５・・・・・磁気回路、６・・・・フレーム、８・・・
−・エツジ、９・・・−・・平板振動板、１０・・・・
・ドライブコーン、・１０ａ、１０ｂ・・・・結合部、
１０ｃ・・・・・窓孔、１ｏｄ・・・・機部、１ｏｅ・
・・・・・補強リブ、１１・・・・・・磁気ギャップ、
１２・・・・・・ボイスコイル。Figure 1 is a sectional view showing a general flat speaker, Figure 2 is a cross-sectional view showing a general flat speaker;
Fig. 3 is a front view of a drive cone used in a conventional flat speaker, Fig. 4 is a front view showing an embodiment of a drive cone used in a flat speaker of the present invention, and Fig. 5 is a top view of the drive cone before molding. It is a diagram. 5... Magnetic circuit, 6... Frame, 8...
-・Edge, 9...---Flat plate diaphragm, 10...
・Drive cone, ・10a, 10b... joint part,
10c...window hole, 1od...machine part, 1oe...
...Reinforcement rib, 11...Magnetic gap,
12...Voice coil.
Claims (1)
て平板振動板を結合し、中間部に変形扇状の窓孔を設け
て螺旋状の機部を有しこの機部に補強リブを形成したド
ライブコーンを上記平板振動板の下面に結合し、このド
ライブコーンの中央部に上記磁気回路の磁気ギャップに
はまりこむボイスコイルを結合してなる平面スピーカ。A flat plate diaphragm was connected via an edge to the peripheral edge of the frame connected to the magnetic circuit, and a modified fan-shaped window hole was provided in the middle part to form a spiral machine part, and reinforcing ribs were formed on this machine part. A flat speaker comprising a drive cone coupled to the lower surface of the flat diaphragm, and a voice coil fitted in the magnetic gap of the magnetic circuit coupled to the center of the drive cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58193697A JPS6085698A (en) | 1983-10-17 | 1983-10-17 | flat speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58193697A JPS6085698A (en) | 1983-10-17 | 1983-10-17 | flat speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6085698A true JPS6085698A (en) | 1985-05-15 |
Family
ID=16312273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58193697A Pending JPS6085698A (en) | 1983-10-17 | 1983-10-17 | flat speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6085698A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487474A (en) * | 2010-12-06 | 2012-06-06 | 富士通天株式会社 | Speaker unit |
-
1983
- 1983-10-17 JP JP58193697A patent/JPS6085698A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487474A (en) * | 2010-12-06 | 2012-06-06 | 富士通天株式会社 | Speaker unit |
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