JPS6253099A - Rotary type speaker - Google Patents
Rotary type speakerInfo
- Publication number
- JPS6253099A JPS6253099A JP19272585A JP19272585A JPS6253099A JP S6253099 A JPS6253099 A JP S6253099A JP 19272585 A JP19272585 A JP 19272585A JP 19272585 A JP19272585 A JP 19272585A JP S6253099 A JPS6253099 A JP S6253099A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- fan
- sheet coil
- coil
- permanent magnet
- 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
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、大出力の平面音波を高能率で送出し且つHj
−Fiな再生音を可能とする新規な構造の薄型スピーカ
に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention transmits high-output plane sound waves with high efficiency and
The present invention relates to a thin speaker with a novel structure that enables high-fidelity reproduction sound.
(従来の技術)
従来のスピーカは、その動作方式としてダイナミック型
やコンデンサ型等各種の方式があるが、いずれの方式で
も振動板を励振して音波を放射するようなものである。(Prior Art) Conventional speakers have various operating systems, such as a dynamic type and a capacitor type, but all of these systems excite a diaphragm to emit sound waves.
第2図は、最近注目されている平面形スピーカの一例を
示す。この図において、円盤状の平面振動板1は、例え
ば密度が小さく剛性が非常に大きいハニカム・サンドイ
ッチの複合材料でつくられる。この平面振動板1の節円
には円筒状ボビ/2の一端が接続され、このボビン2の
外周にボイスコイル3が巻回されている。ボイスコイル
3には図示しない永久磁石によって半径方向に一定の磁
界が印加されている。FIG. 2 shows an example of a planar speaker that has recently attracted attention. In this figure, a disk-shaped planar diaphragm 1 is made of, for example, a honeycomb sandwich composite material with low density and very high rigidity. One end of a cylindrical bobbin/2 is connected to the nodal circle of the plane diaphragm 1, and a voice coil 3 is wound around the outer periphery of the bobbin 2. A constant magnetic field is applied to the voice coil 3 in the radial direction by a permanent magnet (not shown).
このような構造のスピーカにおいて音声は次のようにし
て発生される。すなわち、音声を表す電気信号、いわゆ
る音声電流がボイスコイル3に供給されるとその音声電
流と上記磁界との相互作用によってボイスコイル3が矢
印AO,AIの方向に振動し、それによって平面振動板
lも同方向に振動して音声電流に対応した甲面波状の音
波が放射される。In a speaker having such a structure, sound is generated in the following manner. That is, when an electrical signal representing a sound, a so-called sound current, is supplied to the voice coil 3, the voice coil 3 vibrates in the directions of arrows AO and AI due to the interaction between the sound current and the magnetic field, thereby causing the plane diaphragm to vibrate. l also vibrates in the same direction, and a conch wave-shaped sound wave corresponding to the sound current is emitted.
(発明が解決しようとする問題点)
を述したようなスピーカでは、音の歪みを少なくするた
め節の位置で振動板を駆動するようにしているが、節円
は理論的に0.68Ra (Raは節円の半径)とし
て与えられるのでボビン2およびボイスコイル3の径は
比較的太きく、シたがって振動系の重量が大となり、消
費電力が大きいという問題がある。また、振動板1およ
びそれと対向するキャビネット内壁間で定在波が生じる
、振動板1の背面側にも音波が放射されるが背面側の構
造が複雑なため影響を受けやすい、高次の分割振動にお
ける共振時のQが高い、等の原因によってHi−Fiな
再生音を出せないという問題がある。なお、従来のコー
ン形スピーカでは、一般にボイスコイルの振動に適当な
制動をかけるためのダンパが設けられるため、その分の
損失によって効率が低くなるという問題もある。(Problem to be Solved by the Invention) In a speaker like the one described above, the diaphragm is driven at the nodal position in order to reduce sound distortion, but the nodal circle is theoretically 0.68Ra ( Since Ra is given as the radius of the nodal circle, the diameters of the bobbin 2 and the voice coil 3 are relatively large, and therefore the weight of the vibration system becomes large, resulting in a problem of large power consumption. In addition, standing waves are generated between the diaphragm 1 and the inner wall of the cabinet facing it, and sound waves are also radiated to the back side of the diaphragm 1, but the structure of the back side is complex, so it is easily affected by high-order division. There is a problem in that Hi-Fi reproduced sound cannot be produced due to factors such as high Q during resonance in vibration. In addition, since conventional cone-shaped speakers are generally provided with a damper to appropriately damp the vibration of the voice coil, there is also the problem that the efficiency decreases due to the corresponding loss.
本発明は、従来技術の上記問題点に鑑みてなされたもの
で、人出力の平面a彼を高能率で送出し1tつHi−F
iな再生音が得られる薄型スピーカを提供することを目
的とする。The present invention has been made in view of the above-mentioned problems of the prior art.
The purpose of the present invention is to provide a thin speaker capable of producing i-like reproduced sound.
(問題点を解決するための手段)
上記目的を達成する本発明の構成は、揺動回転すること
によって音波を放射するプロペラ形ファンと、音声に対
応した交流電気信号により発生される電磁力で前記プロ
ペラ型ファンを揺動回転させる揺動回転駆動手段とを具
備することを特徴とする。(Means for Solving the Problems) The configuration of the present invention that achieves the above object uses a propeller-shaped fan that emits sound waves by rocking and rotating, and an electromagnetic force generated by an AC electric signal corresponding to sound. The present invention is characterized by comprising an oscillating rotation drive means for oscillatingly rotating the propeller type fan.
(作用)
音声に対応した交流電気信号を揺動回転駆動手段に供給
すると、それによって向きが変わる電磁力が発生してプ
ロペラ形ファンが揺動回転し音圧または音波を前方に放
射する。このようにファンの揺動回転によって音圧を生
成する方式は、振動によって音圧を生成する方式と比較
して、回転力を利用するため能率が良く大きな出力が得
られ、また前方だけに音圧を送出するので)li−Fi
な再生音が得られる。(Function) When an alternating current electric signal corresponding to the sound is supplied to the oscillating rotation drive means, an electromagnetic force is generated to change the direction, and the propeller type fan oscillates and radiates sound pressure or sound waves forward. Compared to methods that generate sound pressure through vibration, this method of generating sound pressure through the oscillating rotation of the fan is more efficient and produces a larger output because it uses rotational force, and it also produces sound only in the front. (because it sends out pressure) li-Fi
You can get a good playback sound.
(実施例)
第1図は本発明の一実施例によるロータリ型スピーカを
示す。この図において、プロペラ形ファ〉10は、チタ
ン、アルミニウム等の軽金属でつくられ、回転軸12に
放射状に取り付けられる。(Embodiment) FIG. 1 shows a rotary type speaker according to an embodiment of the present invention. In this figure, a propeller-shaped fan 10 is made of a light metal such as titanium or aluminum and is radially attached to a rotating shaft 12.
このファン10の下側にはシートコイル14からなるロ
ータが固定される。このシートコイル14は周知の構造
であり、プリント回路板をフォトレノストにより加工し
て扇形の電機子コイルパターンを円周方向に配列形成し
てなるものである。A rotor consisting of a sheet coil 14 is fixed to the lower side of the fan 10. This sheet coil 14 has a well-known structure, and is formed by processing a printed circuit board using photorenost to form fan-shaped armature coil patterns arranged in the circumferential direction.
/−トコイル14の下方には、小さな間隙gを介して永
久磁石16からなるステータが対向配置される。これら
永久磁石16はシートコイル14のコイルと同数の極数
であり、回転軸12と同心の円周上にドーナツ状に配列
されている。そして各永久磁石16は回転軸方向に着磁
され、そこから発生する磁束はシートコイル14の電機
子コイルと直角に鎖交する。永久磁石16の中心開口部
には、回転軸12を支持する軸受18が設けられている
。A stator made of permanent magnets 16 is disposed below the coil 14 and facing each other with a small gap g interposed therebetween. These permanent magnets 16 have the same number of poles as the sheet coil 14, and are arranged in a donut shape on a circumference concentric with the rotating shaft 12. Each permanent magnet 16 is magnetized in the direction of the rotation axis, and the magnetic flux generated therefrom interlinks with the armature coil of the sheet coil 14 at right angles. A bearing 18 that supports the rotating shaft 12 is provided in the central opening of the permanent magnet 16 .
このように構成された本実施例のロークリ型スピーカは
一種のフラットモータとして動作する。The rotary type speaker of this embodiment configured in this manner operates as a type of flat motor.
ただし、一般のフラットモータでは永久磁石がロータで
シートフィルがステータであるのに対し、本実施例のロ
ータリ型スピーカでは永久磁石がステータでシートコイ
ルがロータであり、そして/−トコイルと一体的に結合
されたファン10が揺動回転するところに特徴がある。However, whereas in a general flat motor, the permanent magnet is the rotor and the sheet fill is the stator, in the rotary type speaker of this example, the permanent magnet is the stator, the sheet coil is the rotor, and the /-to coil is integrated with the rotary type speaker. The feature is that the combined fan 10 swings and rotates.
すなわち、音声に対応した交流電気信号、いわゆる音声
電流がシートコイル14の電機子コイルに供給されると
、その音声電流と永久磁石16からの磁束との電磁的相
互作用によって電磁力の回転トルクが発生しロータ側の
ファン10がシートコイル14と一体的に回転する。そ
して、音声電流の流れる方向は音声波形に対応して比較
的短い周期で変わるためファン10は揺動回転(大きく
回らず、交流信号により細かく前後回転)シ、それによ
って音波または音圧を前方へ送出する。That is, when an alternating current electric signal corresponding to a sound, a so-called sound current, is supplied to the armature coil of the sheet coil 14, the rotational torque of the electromagnetic force is increased due to the electromagnetic interaction between the sound current and the magnetic flux from the permanent magnet 16. The fan 10 on the rotor side rotates integrally with the sheet coil 14. Since the direction in which the audio current flows changes in a relatively short period according to the audio waveform, the fan 10 rotates in an oscillating manner (does not rotate widely, but rotates back and forth finely depending on the AC signal), thereby forwarding the sound waves or sound pressure. Send.
このように、本実施例では、シートコイル14と永久磁
石16とでフラットモータ型の揺動回転駆動手段を構成
し、ロータとしてのシートコイル14に音声電流を供給
することによりノートコイル14と一体的に結合された
プロペラ形ファン10を揺動回転させ、それによって音
波を前方に送出するようにしている。As described above, in this embodiment, the sheet coil 14 and the permanent magnet 16 constitute a flat motor type oscillating rotation driving means, and the sheet coil 14 as a rotor is integrated with the note coil 14 by supplying an audio current to the sheet coil 14. A propeller-shaped fan 10 coupled to each other is rocked and rotated, thereby sending out sound waves forward.
なお、円盤状の板等の適当な支持板を介して永久磁石1
6とファン10を一体的に結合してもよく、その場合に
は永久磁石16をロータとして上方に配置しノートコイ
ル14をステータトシテ下方に配置すればよい。In addition, the permanent magnet 1 is attached via a suitable support plate such as a disc-shaped plate.
6 and the fan 10 may be integrally combined, in which case the permanent magnet 16 may be arranged above as a rotor, and the note coil 14 may be arranged below the stator.
(発明の効果)
以上のように本発明では、プロペラ形ファンを揺動回転
させて音波を放射する方式であるため、従来の振動板を
振動させて音波を放射する方式のものと比較して、(1
)より容易に薄型に構成できる、(2)大出力の音声を
能率良く発生することができる、(3)音波は概してフ
ァンの前方にのみ平面波として送出され背後には少しし
か送出されないので、キャビネット内での定在波を抑制
できると上もに背面側の構造が影響することもなくなり
分割振動の問題も特になく、それによりHi −Flな
+rT生音が得られる等の利点がある、(Effects of the Invention) As described above, in the present invention, since the propeller type fan is oscillated and rotated to radiate sound waves, compared to the conventional method in which the diaphragm is vibrated to radiate sound waves. , (1
(2) High-output audio can be generated efficiently; (3) Sound waves are generally sent out as plane waves only in front of the fan, and only a small amount is sent out behind the cabinet. If you can suppress the standing waves inside, there will be no influence of the structure on the back side on the upper side, and there will be no problem of split vibration, which has the advantage of producing Hi-Fl +rT raw sound.
第1図は本発明の一実施例によるロータIJ l+、l
lスピーカの構造を示す断面図、および
第2図は従来の甲面−リスピーカの構造を小す断面図で
ある。
10・・・・プロペラ形ファ/、12川同転軸、14・
・・・シートコイル、16曲永久磁石、18・・軸受、
g・・・・間隙。FIG. 1 shows rotor IJ l+, l according to an embodiment of the present invention.
1 is a cross-sectional view showing the structure of a speaker, and FIG. 2 is a smaller cross-sectional view of the structure of a conventional back-rear speaker. 10...Propeller type F/, 12 river co-rotating shaft, 14.
...sheet coil, 16-track permanent magnet, 18...bearing,
g... Gap.
Claims (2)
ラ形ファンと、音声に対応した交流電気信号により発生
される電磁力で前記プロペラ形ファンを揺動回転させる
揺動回転駆動手段とを具備することを特徴とするロータ
リ型スピーカ。(1) A propeller-shaped fan that radiates sound waves by rotating in an oscillating manner, and a oscillating rotation drive means that oscillates and rotates the propeller-shaped fan using electromagnetic force generated by an AC electric signal corresponding to sound. A rotary type speaker characterized by:
と一体的に結合されたシートコイルと、回転軸方向に着
磁され、前記シートコイルに対して小間隔を置いて対向
配置された永久磁石とからなる、特許請求の範囲第1項
に記載のロータリ型スピーカ。(2) The rocking rotation driving means includes a sheet coil integrally coupled with the propeller-shaped fan, and a permanent magnet magnetized in the direction of the rotation axis and facing the sheet coil at a small distance. The rotary type speaker according to claim 1, comprising a magnet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19272585A JPS6253099A (en) | 1985-08-31 | 1985-08-31 | Rotary type speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19272585A JPS6253099A (en) | 1985-08-31 | 1985-08-31 | Rotary type speaker |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6253099A true JPS6253099A (en) | 1987-03-07 |
Family
ID=16296025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19272585A Pending JPS6253099A (en) | 1985-08-31 | 1985-08-31 | Rotary type speaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6253099A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100489201B1 (en) * | 2001-05-17 | 2005-05-17 | (주)트윈 세이버 | Sound-to-vibration conversion apparatus |
KR101142134B1 (en) | 2010-05-27 | 2012-05-10 | 주식회사 에이알티엑스 | Driving method of speaker |
US9800980B2 (en) | 2015-09-14 | 2017-10-24 | Wing Acoustics Limited | Hinge systems for audio transducers and audio transducers or devices incorporating the same |
US11137803B2 (en) | 2017-03-22 | 2021-10-05 | Wing Acoustics Limited | Slim electronic devices and audio transducers incorporated therein |
US11166100B2 (en) | 2017-03-15 | 2021-11-02 | Wing Acoustics Limited | Bass optimization for audio systems and devices |
US11627415B2 (en) | 2018-08-14 | 2023-04-11 | Wing Acoustics Limited | Systems methods and devices relating to audio transducers |
-
1985
- 1985-08-31 JP JP19272585A patent/JPS6253099A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100489201B1 (en) * | 2001-05-17 | 2005-05-17 | (주)트윈 세이버 | Sound-to-vibration conversion apparatus |
KR101142134B1 (en) | 2010-05-27 | 2012-05-10 | 주식회사 에이알티엑스 | Driving method of speaker |
US11102582B2 (en) | 2015-09-14 | 2021-08-24 | Wing Acoustics Limited | Audio transducers and devices incorporating the same |
US10244325B2 (en) | 2015-09-14 | 2019-03-26 | Wing Acoustics Limited | Audio transducer and audio devices incorporating the same |
US10701490B2 (en) | 2015-09-14 | 2020-06-30 | Wing Acoustics Limited | Audio transducers |
US10887701B2 (en) | 2015-09-14 | 2021-01-05 | Wing Acoustics Limited | Audio transducers |
US9800980B2 (en) | 2015-09-14 | 2017-10-24 | Wing Acoustics Limited | Hinge systems for audio transducers and audio transducers or devices incorporating the same |
US11490205B2 (en) | 2015-09-14 | 2022-11-01 | Wing Acoustics Limited | Audio transducers |
US11716571B2 (en) | 2015-09-14 | 2023-08-01 | Wing Acoustics Limited | Relating to audio transducers |
US11968510B2 (en) | 2015-09-14 | 2024-04-23 | Wing Acoustics Limited | Audio transducers |
US11166100B2 (en) | 2017-03-15 | 2021-11-02 | Wing Acoustics Limited | Bass optimization for audio systems and devices |
US11137803B2 (en) | 2017-03-22 | 2021-10-05 | Wing Acoustics Limited | Slim electronic devices and audio transducers incorporated therein |
US11627415B2 (en) | 2018-08-14 | 2023-04-11 | Wing Acoustics Limited | Systems methods and devices relating to audio transducers |
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