JP3098750B2 - Speaker - Google Patents
SpeakerInfo
- Publication number
- JP3098750B2 JP3098750B2 JP01340657A JP34065789A JP3098750B2 JP 3098750 B2 JP3098750 B2 JP 3098750B2 JP 01340657 A JP01340657 A JP 01340657A JP 34065789 A JP34065789 A JP 34065789A JP 3098750 B2 JP3098750 B2 JP 3098750B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- gap
- elliptical
- speaker
- edge
- 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.)
- Expired - Fee Related
Links
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、Hi−Fi、車載等の他多くの分野で用いられ
る音楽再生用音響機器に用いるスピーカに関するもので
ある。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker used in audio equipment for music reproduction used in many other fields such as Hi-Fi, in-vehicle and the like.
従来の技術 従来、スピーカを構成する振動板において、振動面と
エッジロール内径との隙間を広げ、エッジ共振を利用し
てスピーカの周波数特性の改善を図る場合がある。2. Description of the Related Art Conventionally, in a diaphragm constituting a speaker, there is a case where a gap between a vibrating surface and an inner diameter of an edge roll is widened to improve a frequency characteristic of the speaker by using edge resonance.
第５図，第６図にこの従来例における平面図と断面図
を示す。ここで、31は底部プレート、32はマグネット、
33は上部プレート、34はフレーム、35は振動板、36はボ
イスコイル、37はサスペンション、38はサブコーン、39
は振動板35の振動面外径とエッジロール内径との間で拡
張された隙間である。5 and 6 show a plan view and a cross-sectional view of this conventional example. Where 31 is the bottom plate, 32 is the magnet,
33 is the upper plate, 34 is the frame, 35 is the diaphragm, 36 is the voice coil, 37 is the suspension, 38 is the sub cone, 39
Is a gap extended between the outer diameter of the vibration surface of the diaphragm 35 and the inner diameter of the edge roll.
このように、振動板35の外径とエッジロール内径との
隙間39を広げることで、エッジ共振の深さと周波数範囲
が広がって、中音域に音圧のディップを作ることができ
る。従って、中音域に音圧のピークがあるスピーカはこ
の方法で周波数特性の平坦化を図ることができる。As described above, by widening the gap 39 between the outer diameter of the diaphragm 35 and the inner diameter of the edge roll, the depth of the edge resonance and the frequency range are widened, and a dip of sound pressure can be created in the midrange. Therefore, a speaker having a sound pressure peak in the midrange can flatten the frequency characteristics by this method.
発明が解決しようとする課題 しかし、楕円振動板を用いたスピーカでは、上記のよ
うに振動面外径とエッジロール内径との隙間を広げて
も、その半径が常に変化しているためエッジ共振が分散
され、円形スピーカのような制御はできない。Problems to be Solved by the Invention However, in a speaker using an elliptical diaphragm, even if the gap between the outer diameter of the vibrating surface and the inner diameter of the edge roll is widened as described above, the radius always changes, so that the edge resonance is generated. It is distributed and cannot be controlled like a circular speaker.
また、楕円振動面の長径方向は短径方向に比べ、外周
端の角度が水平に近くエッジ共振が出易いため、長径で
決まる波長の周波数にディップが集中するという問題も
あった。In addition, the major axis direction of the elliptical vibration surface has a problem that the dip concentrates on the frequency of the wavelength determined by the major axis because the angle of the outer peripheral end is nearly horizontal and the edge resonance is easily generated as compared with the minor axis direction.
本発明は上記のような楕円振動板でのエッジ共振をよ
り自由に制御し、周波数特性をコントロールできるスピ
ーカの提供を目的とする。An object of the present invention is to provide a speaker capable of controlling edge resonance in an elliptical diaphragm as described above more freely and controlling frequency characteristics.
課題を解決するための手段 本発明は上記課題を解決するため、楕円振動板の振動
面外径とエッジロール内径との隙間を、短径方向で長径
方向より広げて構成するものである。Means for Solving the Problems In order to solve the above problems, the present invention is configured such that the gap between the outer diameter of the vibration surface of the elliptical diaphragm and the inner diameter of the edge roll is widened in the short diameter direction from the long diameter direction.
作用 上記手段によれば、振動面外径とエッジロール内径の
隙間が広い短径方向にエッジ共振を集中させることがで
き、また音圧のディップ周波数を短径で決まる波長から
選択できるものである。According to the above means, the edge resonance can be concentrated in the minor axis direction in which the gap between the outer diameter of the vibrating surface and the inner diameter of the edge roll is wide, and the dip frequency of the sound pressure can be selected from the wavelength determined by the minor axis. .
実施例 第１図，第２図に本発明の第１の実施例におけるスピ
ーカの平面図と断面図を示す。ここで、１はセンターポ
ールを有する底部プレート、２はリング状のマグネッ
ト、３は同じくリング状の上部プレートで、この底部プ
レート１、マグネット２、上部プレート３で磁気回路を
構成する。４はフレーム、５は楕円振動板、６はこの楕
円振動板５の中央部に結合されたボイスコイル、７はボ
イスコイル６の中間部を支持するサスペンション、８は
ボイスコイル６の上端に結合されたサブコーン、９は楕
円振動板５の振動面外径とエッジロール11の内径の長径
方向における隙間、10は楕円振動板５の振動面外径とエ
ッジロール11の内径の短径方向におえる隙間である。本
実施例では、5.5インチ×7.5インチの楕円スピーカを対
象として、長径方向の隙間９はエッジ接着に必要な最小
限の遊びとし、短径方向の隙間10は積極的に広げてい
る。これによって、長径の波長による周波数でのエッジ
共振を増加させずに短径の波長による周波数でのエッジ
共振を増加させることができ、また短径の位置で集中的
に隙間を設けるため共振によるディップ効果は大きい。
実験では、短径方向の隙間10は2mm以上で効果があり、
５〜6mmで最適値を得た。但し、広げ過ぎはローリング
の原因となるため注意が必要である。Embodiment FIGS. 1 and 2 show a plan view and a sectional view of a speaker according to a first embodiment of the present invention. Here, 1 is a bottom plate having a center pole, 2 is a ring-shaped magnet, 3 is a ring-shaped upper plate, and the bottom plate 1, magnet 2, and upper plate 3 constitute a magnetic circuit. 4 is a frame, 5 is an elliptical diaphragm, 6 is a voice coil coupled to the center of the elliptical diaphragm 5, 7 is a suspension supporting an intermediate portion of the voice coil 6, and 8 is coupled to an upper end of the voice coil 6. The sub-cone, 9 is a gap in the major axis direction of the outer diameter of the vibrating surface of the elliptical diaphragm 5 and the inner diameter of the edge roll 11, and 10 is a gap in the minor axis direction of the outer diameter of the elliptical diaphragm 5 and the inner diameter of the edge roll 11. It is. In the present embodiment, for a 5.5-inch × 7.5-inch elliptical speaker, the gap 9 in the long diameter direction is the minimum play required for edge bonding, and the gap 10 in the short diameter direction is positively widened. As a result, it is possible to increase the edge resonance at the frequency of the minor axis without increasing the edge resonance at the frequency of the major axis wavelength. The effect is great.
In the experiment, the gap 10 in the minor axis direction is effective at 2 mm or more,
The optimum value was obtained at 5 to 6 mm. However, care must be taken because over-spreading causes rolling.
第３図，第４図は本発明の第２の実施例におけるスピ
ーカの平面図と断面図である。第３図，第４図におい
て、第１図，第２図に示す部分と同一部分については、
同一番号を付して説明を省略する。ここで、４はフレー
ム、５は方形状振動板、９は長径方向の隙間、10は短径
方向の隙間である。3 and 4 are a plan view and a sectional view of a speaker according to a second embodiment of the present invention. 3 and FIG. 4, the same parts as those shown in FIG. 1 and FIG.
The same numbers are assigned and the description is omitted. Here, 4 is a frame, 5 is a rectangular diaphragm, 9 is a gap in the major axis direction, and 10 is a gap in the minor axis direction.
本実施例は、第１の実施例における振動板を楕円から
方形（トラック楕円）としたものであり、第１の実施例
に準じた作用、効果が得られるものである。In the present embodiment, the diaphragm in the first embodiment is changed from an ellipse to a square (track ellipse), and an operation and an effect similar to those of the first embodiment can be obtained.
発明の効果 以上のように本発明は、フレームに固定された磁気回
路の磁気ギャップにボイスコイルを挿入し、外周部をフ
レームに固定したサスペンションと楕円又は方形振動板
を上記ボイスコイルに順次結合し、楕円振動板の振動面
外径とエッジロール内径の隙間を、短径方向で長径方向
より広くする構成とすることにより以下の効果を得るこ
とができる。As described above, according to the present invention, a voice coil is inserted into a magnetic gap of a magnetic circuit fixed to a frame, and a suspension having an outer peripheral portion fixed to the frame and an elliptical or square diaphragm are sequentially coupled to the voice coil. By making the gap between the outer diameter of the vibration surface of the elliptical diaphragm and the inner diameter of the edge roll wider in the minor axis direction than in the major axis direction, the following effects can be obtained.
（１） エッジ共振が分散され易い楕円スピーカにおい
て、エッジ共振のでにくい短径方向のエッジ共振の制御
効果をアップさせることができた。(1) In an elliptical speaker in which edge resonance is easily dispersed, the effect of controlling edge resonance in the short diameter direction, which is difficult to cause edge resonance, can be improved.
（２） 振動板短径の波長による周波数で、エッジ共振
のディップを制御でき、従来に比べてより細かい周波数
特性補正が可能となる。(2) The dip of the edge resonance can be controlled by the frequency based on the wavelength of the minor axis of the diaphragm, and finer frequency characteristic correction can be performed as compared with the related art.
（３） さらに、本発明は振動板の金型だけで実施でき
るためコストアップとならず、量産性が高い。(3) Further, since the present invention can be carried out only with the mold for the diaphragm, the cost is not increased and the mass productivity is high.
第１図は本発明の第１の実施例におけるスピーカの平面
図、第２図は第１図のＸ−Ｏ−Ｙにおける断面図、第３
図は本発明の第２の実施例におけるスピーカの平面図、
第４図は第３図のＸ−Ｏ−Ｙ断面における断面図、第５
図は従来例におけるスピーカの平面図、第６図は第５図
のＸ−Ｏ−Ｙ断面における断面図である。 １……底部プレート、２……マグネット、３……上部プ
レート、４……フレーム、５……振動板、６……ボイス
コイル、７……サスペンション、９……振動板５の振動
面外径とエッジロール内径との長径方向における隙間、
10……振動板５の振動面外径とエッジロール内径との短
径方向における隙間。FIG. 1 is a plan view of a speaker according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line X-O-Y of FIG.
The figure is a plan view of a speaker according to a second embodiment of the present invention,
FIG. 4 is a sectional view taken along the line X-Y-Y of FIG.
FIG. 1 is a plan view of a speaker in a conventional example, and FIG. 6 is a cross-sectional view taken along the line X-Y of FIG. DESCRIPTION OF SYMBOLS 1 ... bottom plate, 2 ... magnet, 3 ... upper plate, 4 ... frame, 5 ... diaphragm, 6 ... voice coil, 7 ... suspension, 9 ... diaphragm outer diameter of diaphragm 5 Gap in the major axis direction with the inner diameter of the edge roll,
10 A gap in the minor axis direction between the outer diameter of the vibration surface of the diaphragm 5 and the inner diameter of the edge roll.
Claims (1)
ップにボイスコイルを挿入し、外周部をフレームに固定
したサスペンションと楕円又は方形振動板を上記ボイス
コイルに順次結合し、上記楕円又は方形振動板の振動面
外径とエッジロール内径の隙間を短径方向で長径方向よ
り広げてなるスピーカ。1. A voice coil is inserted into a magnetic gap of a magnetic circuit fixed to a frame, and a suspension having an outer peripheral portion fixed to the frame and an elliptical or square diaphragm are sequentially coupled to the voice coil to form the elliptical or square vibration. A loudspeaker in which the gap between the outer diameter of the vibrating surface of the plate and the inner diameter of the edge roll is wider in the short diameter direction than the long diameter direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01340657A JP3098750B2 (en) | 1989-12-29 | 1989-12-29 | Speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01340657A JP3098750B2 (en) | 1989-12-29 | 1989-12-29 | Speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03203499A JPH03203499A (en) | 1991-09-05 |
| JP3098750B2 true JP3098750B2 (en) | 2000-10-16 |
Family
ID=18339071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01340657A Expired - Fee Related JP3098750B2 (en) | 1989-12-29 | 1989-12-29 | Speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3098750B2 (en) |
-
1989
- 1989-12-29 JP JP01340657A patent/JP3098750B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03203499A (en) | 1991-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070811 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080811 Year of fee payment: 8 |
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| LAPS | Cancellation because of no payment of annual fees |