JPH11275688A - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
JPH11275688A
JPH11275688A JP8951698A JP8951698A JPH11275688A JP H11275688 A JPH11275688 A JP H11275688A JP 8951698 A JP8951698 A JP 8951698A JP 8951698 A JP8951698 A JP 8951698A JP H11275688 A JPH11275688 A JP H11275688A
Authority
JP
Japan
Prior art keywords
voice coil
curved plate
curved
plate
frame
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
Application number
JP8951698A
Other languages
Japanese (ja)
Inventor
Takeshi Teragaki
武 寺垣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RALLY MASTER KK
Original Assignee
RALLY MASTER KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RALLY MASTER KK filed Critical RALLY MASTER KK
Priority to JP8951698A priority Critical patent/JPH11275688A/en
Publication of JPH11275688A publication Critical patent/JPH11275688A/en
Pending legal-status Critical Current

Links

Landscapes

  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a thin, high-performance loudspeaker. SOLUTION: A curved-surface plate 2 having a curved surface in one- dimensional direction with its convex surface on the front side is supported by a support section, a part of which is incorporated in a frame body 1. On the rear concave surface of the curved-surface plate 2, a plurality of ribs 4 made of the same material as that of the plate 2 is provided, and a voice coil is arranged between the ribs 4 and fixed to the rear surface of the plate 2 with an adhesive via a short cylindrical hard connecting member. On the rear side of the voice coil, a yoke 8 and a permanent magnet are arranged separately and fixed to a frame 7.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、各種用途の薄型ス
ピーカに好適に用い得るスピーカに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loudspeaker which can be suitably used for thin speakers for various uses.

【0002】[0002]

【従来の技術】従来から、普通に用いられているスピー
カはコーン形ダイナミックスピーカであり、コーン紙に
より空気を振動させて音を再生している。
2. Description of the Related Art Hitherto, a commonly used speaker is a cone-shaped dynamic speaker, which reproduces sound by vibrating air using cone paper.

【0003】[0003]

【発明が解決しようとする課題】しかし、このダイナミ
ックスピーカはフレームに固定したボイスコイルの前方
にキャップを介して同様にフレームに固定したホーン状
のコーン紙を取り付けなければならないために、厚みが
大きくならざるを得ない。
However, this dynamic speaker has a large thickness because a horn-shaped cone paper also fixed to the frame must be attached via a cap in front of the voice coil fixed to the frame. I have to be.

【0004】また、大きな音を出力するためにはコーン
紙を大きく振動させなければならず、そのためにボイス
コイルとコーン紙の間に伸縮部材であるダンパを介在
し、このダンパを介して音を伝達しており、伝達音が変
調されるという問題点もある。
In order to output a loud sound, the cone paper must be vibrated greatly. For this purpose, a damper, which is an elastic member, is interposed between the voice coil and the cone paper, and the sound is transmitted through the damper. There is also a problem that the transmitted sound is modulated.

【0005】本発明の目的は、上述の問題点を解消し、
薄型で変調が加わり難く忠実に音を再生するスピーカを
提供することにある。
An object of the present invention is to solve the above-mentioned problems,
It is an object of the present invention to provide a speaker that is thin, hardly modulates, and faithfully reproduces sound.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
の本発明に係るスピーカは、膨出面を前方に向けた曲面
板の裏面にリブを形成し、前記裏面にボイスコイルを固
定したことを特徴とする。
According to the present invention, there is provided a speaker according to the present invention, wherein a rib is formed on a back surface of a curved plate having a bulging surface facing forward, and a voice coil is fixed to the back surface. Features.

【0007】[0007]

【発明の実施の形態】本発明を図示の実施例に基づいて
詳細に説明する。図1は前面から見た斜視図、図2は後
方から見た斜視図、図3は断面図である。1はスピーカ
の枠体であり、例えば木製で一辺が150mm、厚み1
0mm程度の大きさとされており、この枠体1に膨出面
を前方に向けた木、合成樹脂等の薄板から成り一次元方
向に曲面を有する曲面板2が、その一部を枠体1に設け
られた支持部3に当接されており、曲面板2は枠体1に
固定されることなく支持されている。曲面板2の凹面と
なる裏面には、例えば曲面板2と同材質の複数個のリブ
4が設けられており、これらのリブ4間にボイスコイル
5が配置され、ボイスコイル5は曲面板2の裏面に短円
筒状で硬質の接続部材6を介して接着剤により固定され
ている。そして、枠体1の後部にはフレーム7が設けら
れており、このフレーム7にヨーク8、このヨーク8内
に設けられた図示しない永久磁石が取り付けられ、ボイ
スコイル5と離隔した状態で電磁的に結合されている。
また必要に応じて、枠体1の前面にスピーカ用クロスを
張ることもできる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment. 1 is a perspective view as viewed from the front, FIG. 2 is a perspective view as viewed from the rear, and FIG. 3 is a cross-sectional view. Reference numeral 1 denotes a frame of the speaker, which is made of, for example, wood and has a side of 150 mm and a thickness of
A curved plate 2 made of a thin plate of wood, synthetic resin or the like having a bulging surface facing forward and having a curved surface in a one-dimensional direction, and a part of which is formed in the frame 1, The curved plate 2 is supported without being fixed to the frame 1, being in contact with the provided support portion 3. For example, a plurality of ribs 4 of the same material as the curved plate 2 are provided on the concave back surface of the curved plate 2, and a voice coil 5 is arranged between the ribs 4. Is fixed by an adhesive via a hard connection member 6 having a short cylindrical shape. A frame 7 is provided at a rear portion of the frame 1, and a yoke 8 and a permanent magnet (not shown) provided in the yoke 8 are attached to the frame 7, and the frame 7 is electromagnetically separated from the voice coil 5. Is joined to.
If necessary, a speaker cloth may be provided on the front surface of the frame 1.

【0008】この場合に、ボイスコイル5は実施例のよ
うにリブ4の間に配置し、曲面板2の凹部内に納めるよ
うにし、枠体1の厚みをこれらの厚みとほぼ同等とすれ
ば、ボイスコイル5の厚みに曲面板2の厚みを加えただ
けの極めて薄型のスピーカが得られる。リブ4は曲面板
2の形状を維持すると共に、曲面板2に波動を誘導する
役割を果たしており、任意の方向に張り巡らすことがで
きる。
In this case, if the voice coil 5 is arranged between the ribs 4 as in the embodiment and is accommodated in the concave portion of the curved plate 2, the thickness of the frame 1 is made substantially equal to these thicknesses. Thus, an extremely thin loudspeaker obtained by adding the thickness of the curved plate 2 to the thickness of the voice coil 5 can be obtained. The rib 4 maintains the shape of the curved plate 2 and plays a role of inducing a wave motion in the curved plate 2 and can be stretched in any direction.

【0009】ここで、ボイスコイル5に音声電流を流す
と、永久磁石からの磁束を流すヨーク8との電磁作用に
よりボイスコイル5には音声に相応する振動が発生し、
この振動は接続部材6を介して曲面板2に伝達される。
曲面板2はリブ4により補強されているので、曲面板2
の振動は抑制され、音声エネルギの多くは波動として曲
面板2に伝達される。この波動は曲面板2において分子
間の衝突を引き起し音声に変換され、曲面板2から音圧
レベルが高められた音声が曲面板2から発せられる。こ
の場合に、音声は曲面板2の振動により、つまり振動に
より空気を押し出しているわけではないので、特に指向
性はなく、四方に伝達される。
Here, when an audio current is applied to the voice coil 5, vibration corresponding to the audio is generated in the voice coil 5 by an electromagnetic action with the yoke 8 which allows the magnetic flux from the permanent magnet to flow.
This vibration is transmitted to the curved plate 2 via the connection member 6.
Since the curved plate 2 is reinforced by the ribs 4, the curved plate 2
Is suppressed, and most of the sound energy is transmitted to the curved plate 2 as a wave. The wave causes collision between molecules in the curved plate 2 and is converted into a sound, and a sound whose sound pressure level is increased from the curved plate 2 is emitted from the curved plate 2. In this case, the sound is not pushed out by the vibration of the curved plate 2, that is, the vibration, so that the sound is transmitted in all directions without any particular directivity.

【0010】また、従来のスピーカのように、ボイスコ
イル5と曲面板2の間に従来のコーン紙を動き易く支え
るためのダンパを用いていないので、ダンパの伸び縮み
による変調が加わらず音声を忠実に再現することができ
る。
Further, since a conventional damper is not used between the voice coil 5 and the curved plate 2 so as to easily support the cone paper, unlike the conventional speaker, the voice is not modulated by the expansion and contraction of the damper. Can be faithfully reproduced.

【0011】なお、この場合に曲面板2の曲率を変える
と、分子間の衝突割合が変化し音圧レベルが変化するこ
とが確かめられているが、曲面板2の大きさ等を考慮し
て曲率を適宜選定することが好ましい。なお、実施例で
は曲面板2を一次元方向に曲げた例を示したが、例えば
二次元方向つまり球面状に膨出させることもできる。
In this case, it has been confirmed that when the curvature of the curved plate 2 is changed, the collision rate between molecules changes and the sound pressure level changes. However, the size of the curved plate 2 is taken into consideration. Preferably, the curvature is appropriately selected. In the embodiment, the curved plate 2 is bent in a one-dimensional direction. However, the curved plate 2 may be expanded in a two-dimensional direction, that is, a spherical shape.

【0012】また、ボイスコイル5の取付位置はスピー
カの厚さが大きくならない範囲で、曲面板2の裏面の任
意の位置に配置することができる。更に、接続部材6に
ついても実施例の手段にこだわることはない。
The voice coil 5 can be mounted at an arbitrary position on the back surface of the curved plate 2 as long as the thickness of the speaker does not increase. Further, the connection member 6 is not limited to the means of the embodiment.

【0013】更に、フレーム7を省略し、ヨーク8、永
久磁石はボイスコイル5と一体にすることも可能であ
り、かくすることにより、ボイスコイル5に発生する振
動は少なくなるが、波動は発生し曲面板2に伝達される
ので効率良く発音させることができる。
Further, the frame 7 can be omitted, and the yoke 8 and the permanent magnet can be integrated with the voice coil 5. By doing so, the vibration generated in the voice coil 5 is reduced, but the wave is generated. Since the sound is transmitted to the curved surface plate 2, sound can be generated efficiently.

【0014】[0014]

【発明の効果】以上説明したように本発明に係るスピー
カは、ほぼボイスコイルの厚みだけの極めて薄型とな
り、安価に製造でき性能も良好である。
As described above, the loudspeaker according to the present invention is extremely thin, almost the thickness of the voice coil, and can be manufactured at low cost and has good performance.

【図面の簡単な説明】[Brief description of the drawings]

【図1】前方から見た斜視図である。FIG. 1 is a perspective view seen from the front.

【図2】後方から見た斜視図である。FIG. 2 is a perspective view seen from the rear.

【図3】断面図である。FIG. 3 is a sectional view.

【符号の説明】[Explanation of symbols]

1 枠体 2 曲面板 3 支持部 4 リブ 5 ボイスコイル 6 接続部材 7 フレーム 8 ヨーク DESCRIPTION OF SYMBOLS 1 Frame 2 Curved board 3 Support part 4 Rib 5 Voice coil 6 Connection member 7 Frame 8 Yoke

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 膨出面を前方に向けた曲面板の裏面にリ
ブを形成し、前記裏面にボイスコイルを固定したことを
特徴とするスピーカ。
1. A speaker, wherein a rib is formed on a back surface of a curved plate with a bulging surface facing forward, and a voice coil is fixed to the back surface.
【請求項2】 前記リブは前記ボイスコイルから前記曲
面板に入力する波動を前記曲面板に沿って伝達し易い位
置に配置した請求項1に記載のスピーカ。
2. The speaker according to claim 1, wherein the rib is arranged at a position where a wave inputted from the voice coil to the curved plate is easily transmitted along the curved plate.
【請求項3】 前記ボイスコイルは短円筒状の接続部材
を介して前記曲面板に固定した請求項1に記載のスピー
カ。
3. The speaker according to claim 1, wherein the voice coil is fixed to the curved plate via a short cylindrical connecting member.
【請求項4】 前記ボイスコイルの後方にヨーク、永久
磁石を離隔的に配置した請求項1に記載のスピーカ。
4. The speaker according to claim 1, wherein a yoke and a permanent magnet are spaced apart behind the voice coil.
【請求項5】 前記ボイスコイルにヨーク、永久磁石を
固定した請求項1に記載のスピーカ。
5. The speaker according to claim 1, wherein a yoke and a permanent magnet are fixed to the voice coil.
JP8951698A 1998-03-18 1998-03-18 Loudspeaker Pending JPH11275688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8951698A JPH11275688A (en) 1998-03-18 1998-03-18 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8951698A JPH11275688A (en) 1998-03-18 1998-03-18 Loudspeaker

Publications (1)

Publication Number Publication Date
JPH11275688A true JPH11275688A (en) 1999-10-08

Family

ID=13972971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8951698A Pending JPH11275688A (en) 1998-03-18 1998-03-18 Loudspeaker

Country Status (1)

Country Link
JP (1) JPH11275688A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012238939A (en) * 2011-05-10 2012-12-06 Toshihiro Hayase Loudspeaker
JP6326649B1 (en) * 2017-03-26 2018-05-23 株式会社サウンドファン Speaker
JP2019134393A (en) * 2018-02-01 2019-08-08 正 早出 Speaker device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012238939A (en) * 2011-05-10 2012-12-06 Toshihiro Hayase Loudspeaker
JP6326649B1 (en) * 2017-03-26 2018-05-23 株式会社サウンドファン Speaker
JP2018164191A (en) * 2017-03-26 2018-10-18 株式会社サウンドファン Speaker
JP2019134393A (en) * 2018-02-01 2019-08-08 正 早出 Speaker device

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