JPS6032500A - Plane speaker - Google Patents

Plane speaker

Info

Publication number
JPS6032500A
JPS6032500A JP14219483A JP14219483A JPS6032500A JP S6032500 A JPS6032500 A JP S6032500A JP 14219483 A JP14219483 A JP 14219483A JP 14219483 A JP14219483 A JP 14219483A JP S6032500 A JPS6032500 A JP S6032500A
Authority
JP
Japan
Prior art keywords
edge
cone
sub
frame
voice coil
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.)
Granted
Application number
JP14219483A
Other languages
Japanese (ja)
Other versions
JPH0252918B2 (en
Inventor
Ryoichi Kawasaki
良一 川崎
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP14219483A priority Critical patent/JPS6032500A/en
Publication of JPS6032500A publication Critical patent/JPS6032500A/en
Publication of JPH0252918B2 publication Critical patent/JPH0252918B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/16Mounting or tensioning of diaphragms or cones
    • H04R7/18Mounting or tensioning of diaphragms or cones at the periphery

Abstract

PURPOSE:To prevent defective gap and poor external appearance by connecting an end of an edge to near the tip of a sub cone and connecting another end to a frame respectively. CONSTITUTION:A voice coil 12 driven by a magnetic circuit 8 is wound on a voice coil bobbin 14 and connected to a sub cone 15. The sub cone 15 is connected to a plane diaphragm 16 and an end of an edge 18 is connected to near the tip of the sub cone 15 and another end is connected to a frame 17. Accordingly, even after the bobbin 14 is elastically fixed, a gap gauge can be kept attached to prevent defective gap. At the same time, Gap between the end of the diaphragm 16 and frame 17 can be made uniform to prevent poor external appearance.

Description

【発明の詳細な説明】 印 産業上の利用分野 本発明は、平面スピーカに関するもので、特に製造仕易
く、特性の良い平面スピーカを提供せんとするものであ
る。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a flat speaker, and particularly aims to provide a flat speaker that is easy to manufacture and has good characteristics.

(ロ)従来技術 平面振動板をサブコーンによって駆動する特公昭57−
40719号に示される如き平面スピーカが公知である
。この平面スピーカは、第1図に示す如く、磁気回路(
1)と、該磁気回路(1)の磁気ギャンブ内に配置され
るボイスコイル(2)と、該ボイスコイル(2)が巻回
されるボビン(3)と、該ボビン(3)と一体に成形さ
れたザブコーン(4)と、該サブコーン(4)によって
支持される平面振動板(5)と、該平面振動板(5)の
周縁をフレーム(6)に連結する為のエツジ(7)とに
よって構成されている。
(b) Conventional technology: Japanese Patent Publication No. 1986-57- Driving a plane diaphragm with a sub-cone
A flat speaker as shown in No. 40719 is known. This planar speaker has a magnetic circuit (
1), a voice coil (2) arranged in the magnetic gamble of the magnetic circuit (1), a bobbin (3) around which the voice coil (2) is wound, and integrally with the bobbin (3). A molded subcone (4), a plane diaphragm (5) supported by the subcone (4), and an edge (7) for connecting the periphery of the plane diaphragm (5) to the frame (6). It is made up of.

この様な平面スピーカは、剛性があまり高くない平面振
動板(5)を、大口径のサブコーン(4)により駆動す
る為、分割振動を抑制出来ると(・う利点を有する。し
かしながら、第1図の平面スピーカは、平面振動板(5
)にエツジ(7)を連結している為に、前記平面振動板
(5)及びエツジ(7)を取付ける前に、ギャノプゲー
ジを抜き去らなければならず、前記平面振動板(5)及
びエツジ(7)の取付作業時に、ボイスコイル(2)及
びボビン(3)が動き、ギヤノブ不良を生じ易いという
欠点を有していた。また、第1図の平面スピーカは、平
面振動板(5)の周縁に弾性を有するエツジL/)を取
付固定する為、前記エツジ(7)の形状の不均一や弾性
の不均一に起因して、前記平面振動板(5)が偏心し、
外観不良を生じ易いという欠点を有していた。
Such a planar speaker has the advantage of being able to suppress split vibration because the planar diaphragm (5), which is not very rigid, is driven by a large-diameter sub-cone (4).However, as shown in FIG. The flat speaker has a flat diaphragm (5
), the ganop gauge must be removed before installing the plane diaphragm (5) and edges (7), and the plane diaphragm (5) and edges ( 7), the voice coil (2) and bobbin (3) move during the installation work, which has the drawback that gear knob defects are likely to occur. Furthermore, since the flat speaker shown in Fig. 1 has an elastic edge L/) attached and fixed to the periphery of the flat diaphragm (5), there may be problems due to uneven shape or elasticity of the edge (7). Then, the plane diaphragm (5) is eccentric,
This has the disadvantage that it tends to cause poor appearance.

(ハ)発明の目的 本発明は、上述の点に鑑み成されたもので、ギヤノブ不
良や外観不良を生じない構造を有する平面スピーカを提
供せんとするものである。
(c) Purpose of the Invention The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide a flat speaker having a structure that does not cause gear knob defects or appearance defects.

に)発明の構成 本発明に係る平面スピーカは、磁気回路と、該磁気回路
の磁気ギャップ内に配置されるボイスコイルと、該ボイ
スコイルが巻回されるボビンと、該ボビンに連結される
サブコーンと、該サブコーンによって支持される平面振
動板と、前記サブコーンをフレームに連結する為、一端
が前記サブコーンの先端近傍に固定されるエツジとによ
って構成される。
B) Structure of the Invention The planar speaker according to the present invention includes a magnetic circuit, a voice coil disposed within a magnetic gap of the magnetic circuit, a bobbin around which the voice coil is wound, and a subcone connected to the bobbin. , a flat diaphragm supported by the sub-cone, and an edge whose one end is fixed near the tip of the sub-cone in order to connect the sub-cone to the frame.

(ホ)実施例 第2図は1本発明の一実施例を示す断面図で、に)は永
久磁石(9)、センターポール兼ボトム員及びアッパー
プレートα→がら成る磁気回路、(6)は該磁気回路視
)の磁気ギャップ(至)内に配置されるボイスコイル、
a<は該ボイスコイル(6)が巻回されるボビン、OQ
は該ボビン(l→に連結されるサブコーン、QfGは該
ザブコーン00により支持されろ平面振動板、(I71
は前記磁気回路組)のアッパーブレー) (11)に固
定されるフレーム、(1胆ま前記サブコーン0υを前記
フレームα力に連結するエツジ、及び(15)は前記ボ
ビン(14)を前記フレームQ71に連結するダンパー
である。
(e) Embodiment Figure 2 is a cross-sectional view showing an embodiment of the present invention. a voice coil disposed within a magnetic gap (in view) of the magnetic circuit;
a< is the bobbin around which the voice coil (6) is wound, OQ
is a sub-cone connected to the bobbin (l→), QfG is a plane diaphragm supported by the sub-cone 00, (I71
(11) is an edge that connects the sub-cone 0υ to the frame α force, and (15) connects the bobbin (14) to the frame Q71. This is a damper connected to the

しかして、前記フレーム(I71は、平面振動板OQに
略平行な結合部(イ)と該結合部(ホ)から直立する先
端部eIυとを備え、一端がサブコーンoQに連結され
たエツジ(llli)の他端が、前記結合部(ホ)K連
結されている。
The frame (I71) includes a coupling part (A) that is substantially parallel to the plane diaphragm OQ, and a tip part eIυ that stands upright from the coupling part (E), and has an edge (llli ) is connected to the coupling portion (e) K.

その結果、第2図の平面スピーカは、平面振動板Q6と
、サブコーン00と、エツジ0枠と、フレームQ7)と
で囲まれる空間(イ)を有する様になり、前記空間(イ
)は前記平面振動板0.19の端部と前記フレームθカ
の先端部Q])との間に形成される間隙翰を介して外部
と連通される。
As a result, the planar speaker in FIG. 2 has a space (A) surrounded by the planar diaphragm Q6, the subcone 00, the edge 0 frame, and the frame Q7), and the space (A) is It is communicated with the outside via a gap fence formed between the end of the flat diaphragm 0.19 and the tip Q of the frame θ.

第2図の平面振動板において、ボイスコイル(6)に電
気信号を印加すると、磁気回路僚)の作用により、前記
ボイスコイル(6)、該ボイスコイル(2)が巻回され
たボビン04)及び該ボビンα→に連結されたザブコー
ン00がピストン運動を行い、それに応じて平面振動板
αQもピストン運動を行う。この点については、従来の
平面振動板を有する平面スピーカと何ら変わりない。
In the planar diaphragm of FIG. 2, when an electric signal is applied to the voice coil (6), the voice coil (6) and the bobbin 04 around which the voice coil (2) is wound are caused by the action of the magnetic circuit (2). The subcone 00 connected to the bobbin α→ makes a piston movement, and the plane diaphragm αQ also makes a piston movement accordingly. In this respect, it is no different from a conventional flat speaker having a flat diaphragm.

第2図の平面スピーカを組立てる場合は、まず、フレー
ムQηが固定された磁気回路組)のセンターボールGO
にギャップゲージ(図示せず)を挿入し、その状態で前
記ギャップゲージの上からボイスコイル(イ)が巻回さ
れたボビンaIOを、前記センターボールθQに挿入す
る。そして、前記ボビンθ→にダンパー01の一端ヲ、
前記フレームQηに前記ダンパー09の他端を連結して
、前記ボビン04)の弾性的連結を行う。また、前記ボ
ビン04)にサブコーンαQを連結し、該サブコーンα
0と前記フレームαηとをエツジ(至)で連結して、前
記サブコーンOQの弾性的連結を行う。しかる後、ギャ
ップゲージを引き抜き、ザブコー700に平面振動板θ
すを連結すれば、平面スピーカが完成する。前記エツジ
08)の一端は、ザブコーンαつの先端近傍に、第2図
図示の如く連結される。その為、先に述べた如く、間隙
翰により外部に連通ずる空間(イ)が形成され、該空間
(イ)は平面振動板θυの工、ノジ共振を防止する役割
を成す。
When assembling the flat speaker shown in Fig. 2, first, the center ball GO of the magnetic circuit assembly to which the frame Qη is fixed.
A gap gauge (not shown) is inserted into the center ball θQ, and in this state, the bobbin aIO around which the voice coil (A) is wound is inserted from above the gap gauge into the center ball θQ. Then, one end of the damper 01 is attached to the bobbin θ→,
The other end of the damper 09 is connected to the frame Qη to elastically connect the bobbin 04). Further, a sub-cone αQ is connected to the bobbin 04), and the sub-cone α
0 and the frame αη are connected at an edge, thereby elastically connecting the sub-cone OQ. After that, pull out the gap gauge and attach the flat diaphragm θ to Zabko 700.
By connecting the two, a flat speaker is completed. One end of the edge 08) is connected near the tips of the subcones α as shown in FIG. Therefore, as described above, a space (A) communicating with the outside is formed by the gap fence, and this space (A) plays the role of preventing the vibration of the plane diaphragm θυ from occurring.

前記エツジ共振の防止に関しては、前記空間器の容積と
、前記間隙(イ)の面積及び長さとを適切に定めること
により、十分なる効果をあげることが出来ろ。
Regarding the prevention of the edge resonance, a sufficient effect can be achieved by appropriately determining the volume of the spacer and the area and length of the gap (a).

例えば、前記空間(イ)の容積を■、前記間隙翰の面積
をS、長さをlとすれば、前記空間(イ)と前記間隙轍
とで形成される共振系の共振周波数f、は。
For example, if the volume of the space (A) is ■, the area of the gap ridge is S, and the length is l, then the resonant frequency f of the resonance system formed by the space (A) and the gap track is .

(ただし、Cは音速) となる。従って、前記共振周波数f、が、エツジの共振
周波数f2 に対して、f+ < ftとなる様に、前
記空間(ロ)の容積■、前記間隙翰の面積S及び長さl
を設定すれば、エツジの共振による音響特性の変化を吸
収することが出来、エツジ共振の外部−\の悪影響を防
止出来る。
(However, C is the speed of sound). Therefore, the volume of the space (b), the area S and the length l of the gap can be adjusted such that the resonant frequency f, with respect to the resonant frequency f2 of the edge, satisfies f+ < ft.
By setting , it is possible to absorb changes in acoustic characteristics due to edge resonance, and to prevent the negative influence of external −\ of edge resonance.

(へ)発明の効果 以上述べた如く1本発明に依れば、ボイスコイルが巻回
されるボビンを弾性的に固定した後逸ギャップゲージを
取付けたままにしておけるので、ギャップ不良を防止出
来るという利点を有する。
(f) Effects of the Invention As stated above, according to the present invention, the gap gauge that elastically fixes the bobbin around which the voice coil is wound can be left attached, so gap defects can be prevented. has advantages.

また、平面振動板は、ザブコーンのみに連結され、エツ
ジとは連結されないので、前記平面振動板をサブコーン
に対して自由に位置づけることが出来、前記平面振動板
の端部とフレームとの間の間隙を均一にすることが出来
るので、外観不良を防止出来るという利点を有する。更
に、実施例に示す如く、平面振動板の裏側に、所定の空
間を形成出来るので、そのコンプライアンスにより、前
記平面振動板のエツジ共振を防止出来るという利点も有
In addition, since the plane diaphragm is connected only to the subcone and not to the edges, the plane diaphragm can be freely positioned with respect to the subcone, and the gap between the end of the plane diaphragm and the frame is It has the advantage of preventing appearance defects because it can make it uniform. Furthermore, as shown in the embodiment, since a predetermined space can be formed on the back side of the plane diaphragm, the compliance has the advantage that edge resonance of the plane diaphragm can be prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、従来の平面スピーカを示す断面図、及び第2
図は本発明の一実施例を示す断面図である。 主な図番の説明 但)・・・磁気回路、 (2)・・・ボイスコイル、 
o限・・サブコーン、 θか・・平面撮動板、 θカ・
・・フレーム、(至)・・・エツジ。
FIG. 1 is a sectional view showing a conventional flat speaker, and a second
The figure is a sectional view showing one embodiment of the present invention. Explanation of main drawing numbers However)...Magnetic circuit, (2)...Voice coil,
o limit...sub cone, θ...plane camera plate, θ...
...frame, (to)...edge.

Claims (2)

【特許請求の範囲】[Claims] (1)磁気回路によって駆動されるボイスコイルが巻回
されるボイスコイル)1fピンと、該ボイスコイルボビ
ンが連結されるサブコーンと、該サブコーンに連結され
る平面振動板と、前記サブコーンをフレームに連結する
エツジとから成り、前記エツジの一端を前記サブコーン
の先端近傍に連結することを特徴とする平面スピーカ。
(1) A voice coil around which a voice coil driven by a magnetic circuit is wound) a 1f pin, a sub-cone to which the voice coil bobbin is connected, a plane diaphragm to which the sub-cone is connected, and the sub-cone to the frame. edge, and one end of the edge is connected near the tip of the sub-cone.
(2)前記フレームは、前記エツジの他端が連結される
結合部と、前記振動板と所定の間隔を隔てて対向する様
前記結合部から直立する先端部とを有し、前記振動板と
前記サブコーンと前記エツジと前記フレームとで囲まれ
る空間な形成することによってエツジ共振を防止する様
にしたことを特徴とする特許請求の範囲第1項記載の平
面スピーカ。
(2) The frame has a connecting portion to which the other end of the edge is connected, and a tip portion that stands upright from the connecting portion so as to face the diaphragm at a predetermined distance, and 2. The planar speaker according to claim 1, wherein edge resonance is prevented by forming a space surrounded by the sub-cone, the edge, and the frame.
JP14219483A 1983-08-02 1983-08-02 Plane speaker Granted JPS6032500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14219483A JPS6032500A (en) 1983-08-02 1983-08-02 Plane speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14219483A JPS6032500A (en) 1983-08-02 1983-08-02 Plane speaker

Publications (2)

Publication Number Publication Date
JPS6032500A true JPS6032500A (en) 1985-02-19
JPH0252918B2 JPH0252918B2 (en) 1990-11-15

Family

ID=15309574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14219483A Granted JPS6032500A (en) 1983-08-02 1983-08-02 Plane speaker

Country Status (1)

Country Link
JP (1) JPS6032500A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02231536A (en) * 1989-03-03 1990-09-13 Anritsu Corp Spectroscope

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58138198A (en) * 1982-02-10 1983-08-16 Mitsubishi Electric Corp Loudspeaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58138198A (en) * 1982-02-10 1983-08-16 Mitsubishi Electric Corp Loudspeaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02231536A (en) * 1989-03-03 1990-09-13 Anritsu Corp Spectroscope

Also Published As

Publication number Publication date
JPH0252918B2 (en) 1990-11-15

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