JPS58199000A - Dynamic loud speaker - Google Patents
Dynamic loud speakerInfo
- Publication number
- JPS58199000A JPS58199000A JP8341782A JP8341782A JPS58199000A JP S58199000 A JPS58199000 A JP S58199000A JP 8341782 A JP8341782 A JP 8341782A JP 8341782 A JP8341782 A JP 8341782A JP S58199000 A JPS58199000 A JP S58199000A
- Authority
- JP
- Japan
- Prior art keywords
- voice coil
- diaphragm
- rectangular
- edge part
- side direction
- 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/201—Damping aspects of the outer suspension of loudspeaker diaphragms by addition of additional damping means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は外周部をエツジ部制を介してフレームに支持し
た矩形振動板を、その矩形振動板の長辺ノＪ向における
中心部よりいずれか一力に偏心したイ装置にボイスコイ
ルの駆動力を与えることにより駆動するように構成した
動電型スピーカに関し、特に矩形振動板のボイスコイル
駆動部のみが大きく振動するローリング現象を防止する
ことができる動電型スピーカを提供することを目的とす
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a rectangular diaphragm whose outer peripheral portion is supported on a frame via an edge part system, and a rectangular diaphragm that is eccentrically eccentric from the center of the long side of the rectangular diaphragm in the J direction. Regarding an electrodynamic speaker configured to be driven by applying the driving force of a voice coil to a device, in particular, an electrodynamic speaker that can prevent a rolling phenomenon in which only the voice coil drive part of a rectangular diaphragm vibrates greatly. The purpose is to provide
一般に、スピーカ用振動板の形状は丸型がほとんどであ
り、音声多重用テレビジョン受像機やう／オ受信機付カ
セットテープレコーダ等の音響機イｇのコンパクト化が
図られるに従ってスピーカの形状が問題となってきてい
る。そこで、スピーカの収納される音響機器のほとんど
が直方体であることから、矩形振動板を有するスピーカ
が開発さ才１て来ている。In general, the shape of the speaker diaphragm is mostly round, and as audio equipment such as audio multiplexing television receivers and cassette tape recorders with receivers become more compact, the shape of the speakers becomes a problem. It is becoming. Therefore, since most audio equipment in which speakers are housed are rectangular parallelepipeds, speakers having rectangular diaphragms have been developed.
この矩形振動板を有するスピーカは、ボイスコイル位置
を矩形振動板の長辺方向の中心部より偏心させてスピー
カの背面にくる磁気回路をフレームの端に移動すること
により、モータ等の機構部品の多いラジオ受信機付テー
プレコーダ等の音響機器の部品収納率を向上させ、音響
機器のコンパクト化を図る一ヒで有利なものである。This speaker with a rectangular diaphragm is designed by making the voice coil position eccentric from the center of the long side of the rectangular diaphragm and moving the magnetic circuit on the back of the speaker to the edge of the frame. This is advantageous in that it improves the parts storage ratio of audio equipment such as tape recorders with radio receivers, which are often used, and makes the audio equipment more compact.
第１図および第２図は従来の矩形振動板を有する動電型
スピーカをボしている。第１図および第２図において、
７はセンターポール９が一体に形成されたヨーク、６は
ヨーク７上に固定された環状のマグネット、５はマグネ
ット６土に固定された環状のプレートであり、このプレ
ート６の内周面と上記センターポール９の外周面との間
に環状の磁気空隙が形成される。−上記磁気回路は矩形
のフレーム１ｏの底面に固定されている、１は矩形平面
振動板であり、この矩形平面振動板１はエツジ部月２に
よりフレーム１０の開口部に支持され−Ｃいる。３は上
記η）形平面振動板１の長辺方向の中心部より偏心した
位置に結合されたコイルボビンであり、このコイルボビ
ン３にはボイスコイル８が巻回され、このボイスコイル
８が磁気空隙に挿入されている。４はボイスコイルボビ
ン３をフレーム１ｏに支持するダンパーである。上記１
７７部４４２の４つのコーナ一部分の各半径は、Ｒ１二
１ｉ２−Ｒｓ二Ｒ４、Ｒ＋ ＝Ｒ２：Ｒ３：Ｒ４となっ
ている。1 and 2 illustrate a conventional electrodynamic speaker having a rectangular diaphragm. In Figures 1 and 2,
7 is a yoke in which the center pole 9 is integrally formed, 6 is an annular magnet fixed on the yoke 7, 5 is an annular plate fixed to the magnet 6 soil, and the inner peripheral surface of this plate 6 and the above An annular magnetic gap is formed between the center pole 9 and the outer peripheral surface thereof. - The magnetic circuit is fixed to the bottom surface of a rectangular frame 1o. 1 is a rectangular plane diaphragm 1, and this rectangular plane diaphragm 1 is supported in the opening of the frame 10 by an edge part 2. 3 is a coil bobbin coupled to a position eccentric from the center in the long side direction of the η)-shaped planar diaphragm 1, and a voice coil 8 is wound around this coil bobbin 3, and this voice coil 8 is connected to the magnetic air gap. It has been inserted. 4 is a damper that supports the voice coil bobbin 3 on the frame 1o. Above 1
The radii of the four corner portions of the 77 portion 442 are R121i2-Rs2R4, R+ = R2:R3:R4.
しかしながら、上述しだ動電型スピーカでは、低域にお
いてボイスコイル８による。駆動力Ｆが矩形平面振動板
１に加わった場合、第３図に示す振動姿態をとるもので
ある、
つ捷り、上記のようにエツジ部材２の４つのコーナ一部
分の各半径は等しいため、エツジ部材２の対向するそれ
ぞれ２辺のスティフネスは等しくなる。従って、エツジ
部１／１２の両端のスティフネスに＋ 、に２はに＋
＝に２となり、矩形平面振動＆１の！に辺方向の中心部
より距離ｅだけ偏心した位置に結合さり、たボイスコイ
ル８の駆動力で、駆動する場合にケ］１、破線で示すよ
うにボイスコイル８の結合側のみが大きく振動する現象
、即ちローリングが１１じてボイスコイル８が磁気空隙
に接触するために発する異常音やボイスコイル８の破損
が問題となっていた。However, in the electrodynamic speaker described above, the voice coil 8 is used in the low range. When the driving force F is applied to the rectangular plane diaphragm 1, it assumes the vibration state shown in FIG. The stiffness of each of the two opposing sides of the edge member 2 is equal. Therefore, the stiffness at both ends of edge part 1/12 is +, and 2 is +
= becomes 2, rectangular plane vibration &1! When the voice coil 8 is connected to a position eccentric from the center in the side direction by a distance e and driven by the driving force of the voice coil 8, only the connected side of the voice coil 8 vibrates greatly, as shown by the broken line. Problems have been caused by rolling, which causes the voice coil 8 to come into contact with the magnetic gap, causing abnormal noise and damage to the voice coil 8.
本発明はこのような従来の欠点を解消するものであり、
ボイスコイル駆動部に近い短辺方向のエツジ部分に矩形
振動板からフレームに向うリプを設けることにより、低
域におけるローリングを起りにくくシ、もってｉ′を響
機器の部品収納率の向上を図れることができる偏心駆動
の矩形スピーカを提供するものである、
以下、本発明について実施例の図面と共に説明する。第
４図および第６図は本発明の一実施例を示しており、第
４図および第６図において、前記従来例と同一個所には
同一番号を付している。本実施例ではその断面がロール
状であるエツジ部材２のボイスコイル８の結合位置に近
い短辺方向のエツジ部に矩形平面振動、板１からフレー
ム１０に向かって複数個のリプ１１を設けている。ボイ
スコイル８位置が偏心して矩形平面振動板１を駆動する
場合、 ｆｔＹ：来例のように各コーナ一部分の径が、
舌しい、即ち対向する各辺のスティフネスが等しいと
、ボイスコイル８に近い短辺方向のエツジ部に力が大き
く加わるため、大きく振幅することはすでに述べた通り
であるが１本実施例ではこの短辺方向の１７７部に複数
個のリプ１１を設けているため、ポ′イスコイル８１則
のエノン部はスティフネスが大きくなり、反対側のエツ
ジ部に比べて堅く動きにくくなる、従って、矩形平面振
動＆１に対して偏７シシた駆動力でも、ボイスコイル８
に遠い側も近い側とほぼ等しく振幅させることが可能と
なり、低域ローリングの大幅な改善が図れるものである
。The present invention solves these conventional drawbacks,
By providing a lip extending from the rectangular diaphragm toward the frame on the edge portion of the short side near the voice coil drive unit, rolling in the low range is less likely to occur, thereby improving the parts storage ratio of i′ sound equipment. EMBODIMENT OF THE INVENTION Hereinafter, the present invention will be described with reference to drawings of embodiments. 4 and 6 show an embodiment of the present invention, and in FIGS. 4 and 6, the same parts as in the conventional example are given the same numbers. In this embodiment, a plurality of lips 11 are provided from the plate 1 toward the frame 10 for rectangular plane vibration at the edge portion of the edge member 2, which has a roll-shaped cross section, in the short side direction near the coupling position of the voice coil 8. There is. When the voice coil 8 position is eccentric to drive the rectangular plane diaphragm 1, ftY: As in the previous example, the diameter of a portion of each corner is
As already mentioned, if the stiffness of each opposing side is equal, a large force will be applied to the edge portion in the short side direction near the voice coil 8, resulting in a large amplitude. Since a plurality of lips 11 are provided at the 177th part in the short side direction, the stiffness of the point coil 81 rule increases, making it harder to move than the edge part on the opposite side. Therefore, rectangular plane vibration Even if the driving force is 7 shishi compared to &1, the voice coil 8
It is possible to make the amplitude on the far side almost equal to that on the near side, and it is possible to significantly improve low frequency rolling.
第６図および第７図は本発明の他の実施例であり、第６
図および第７図において、エツジ部材２は前記の実施例
と同様としているが、振動板を平面形状から長方形コー
ン振動板１２に変えている。6 and 7 are other embodiments of the present invention, and FIG.
In the figures and FIG. 7, the edge member 2 is the same as in the previous embodiment, but the diaphragm is changed from a planar shape to a rectangular cone diaphragm 12.
すなわち、非対称の長方形コーン振動板１２を用いた場
合においても、同様に、ローリング現象が問題となるが
、同様の手法を取り入れることによりローリング現象を
解消できるものである。That is, even when the asymmetrical rectangular cone diaphragm 12 is used, the rolling phenomenon similarly poses a problem, but the rolling phenomenon can be solved by adopting the same method.
以１−１詳述したように本発明によれば、ボイスコイル
駆動部に近い短辺方向のエツジ部分に矩形振動板からフ
レームに向けて複数のリプを設けだので、対向する工、
７部分でのスティフネスを非対称としてボイスコイル駆
動部が非対称である場合の低域ローリング現象を起りに
くくすることができる利点をイ」するものである、As described in detail in 1-1 below, according to the present invention, a plurality of lips are provided on the edge portion in the short side direction near the voice coil drive section from the rectangular diaphragm toward the frame, so that the opposing ribs,
By making the stiffness at the 7th part asymmetrical, it has the advantage of making it difficult to cause low-frequency rolling phenomenon when the voice coil drive section is asymmetrical.
第１図は従来の動電型スピーカの上面図、第２図は同ス
ピーカの断面図、第３図は同スピーカの低域ローリング
説明図、第４図は本発明の動電型スピーカの一実施例を
示す上面図、第５図は同スピーカの要部平面図、第６図
は同スピーカの他の実施例を示す上面図、第７図は同ス
ピーカの要部平面図である、
１・・・・・・矩形平向振動板、２・・・・・・エツジ
部材、３・・・・・・コイルホヒン％８・・・・・・ボ
イスコイル、１ｏ・・・・・・フレーム、１１・・・・
・・リブ、１２・・・・・・長方形コーン振動板。
代理人の氏名 井理士 中 尾 敏 男 ほか１名ｌ１
４１図
第２図
第３＠
第５図
ご
第６図
第７図Fig. 1 is a top view of a conventional electrodynamic speaker, Fig. 2 is a sectional view of the same speaker, Fig. 3 is an explanatory diagram of the low range rolling of the same speaker, and Fig. 4 is an illustration of the electrodynamic speaker of the present invention. FIG. 5 is a top view showing an embodiment of the same speaker, FIG. 6 is a top view showing another embodiment of the same speaker, and FIG. 7 is a plan view of essential parts of the same speaker. ......Rectangular flat diaphragm, 2...Edge member, 3...Coil hoin%8...Voice coil, 1o...Frame, 11...
...Rib, 12... Rectangular cone diaphragm. Name of agent: Rishi I, Toshio Nakao, and 1 other person
Figure 41 Figure 2 Figure 3 @ Figure 5 Figure 6 Figure 7
Claims (3)
ームに支持した矩形振動板を、その矩形振動板の長辺方
向の中心部よりいずれか一方に偏心した位置にボイスコ
イルの駆動力を与えることにより駆動するように構成す
ると共に、上記。 エツジ部材はボイ“スコイル結合位置に近い短辺方向の
エツジ部分に上記矩形振動板から上記フレーム方向に複
数個のリプを設けたことを特徴とする動電型スピーカ。(1) A rectangular diaphragm whose outer periphery is supported on a frame via a 177 member with a roll-shaped cross section, and the driving force of the voice coil is applied to a position eccentric to one side from the center of the rectangular diaphragm in the long side direction. and the above. An electrodynamic speaker characterized in that the edge member is provided with a plurality of lips extending from the rectangular diaphragm toward the frame at the edge portion in the short side direction near the voice coil coupling position.
特許請求の範囲第１項記載の動電型スピーカ。(2) The electrodynamic speaker according to claim 1, wherein the rectangular diaphragm is a flat diaphragm.
徴とする特許請求の範囲第１項記載の動電型スピーカ。(3) The electrodynamic speaker according to claim 1, wherein the rectangular diaphragm is a rectangular cone diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8341782A JPS58199000A (en) | 1982-05-17 | 1982-05-17 | Dynamic loud speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8341782A JPS58199000A (en) | 1982-05-17 | 1982-05-17 | Dynamic loud speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58199000A true JPS58199000A (en) | 1983-11-19 |
Family
ID=13801855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8341782A Pending JPS58199000A (en) | 1982-05-17 | 1982-05-17 | Dynamic loud speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58199000A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0236296U (en) * | 1988-09-01 | 1990-03-08 | ||
| EP1381251A2 (en) * | 2002-07-12 | 2004-01-14 | Pioneer Corporation | Speaker and speaker diaphragm |
| US6920957B2 (en) * | 2002-06-24 | 2005-07-26 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker diaphragm |
| EP1655994A3 (en) * | 2004-10-28 | 2007-02-28 | Hosiden Corporation | Flat panel speaker |
| WO2010013199A1 (en) | 2008-07-28 | 2010-02-04 | Nxp B.V. | Membrane for an acoustic transducer |
| GB2543409A (en) * | 2015-09-17 | 2017-04-19 | Bosch Gmbh Robert | Acoustic sensor having a diaphragm and an electroacoustic transducer |
-
1982
- 1982-05-17 JP JP8341782A patent/JPS58199000A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0236296U (en) * | 1988-09-01 | 1990-03-08 | ||
| US6920957B2 (en) * | 2002-06-24 | 2005-07-26 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker diaphragm |
| EP1381251A2 (en) * | 2002-07-12 | 2004-01-14 | Pioneer Corporation | Speaker and speaker diaphragm |
| EP1381251A3 (en) * | 2002-07-12 | 2005-07-13 | Pioneer Corporation | Speaker and speaker diaphragm |
| EP1655994A3 (en) * | 2004-10-28 | 2007-02-28 | Hosiden Corporation | Flat panel speaker |
| WO2010013199A1 (en) | 2008-07-28 | 2010-02-04 | Nxp B.V. | Membrane for an acoustic transducer |
| CN102106159A (en) * | 2008-07-28 | 2011-06-22 | Nxp股份有限公司 | Membrane for an acoustic transducer |
| GB2543409A (en) * | 2015-09-17 | 2017-04-19 | Bosch Gmbh Robert | Acoustic sensor having a diaphragm and an electroacoustic transducer |
| GB2543409B (en) * | 2015-09-17 | 2021-08-11 | Bosch Gmbh Robert | Acoustic sensor having a diaphragm and an electroacoustic transducer |
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