JPS6194499A - Composite flat speaker - Google Patents
Composite flat speakerInfo
- Publication number
- JPS6194499A JPS6194499A JP59215439A JP21543984A JPS6194499A JP S6194499 A JPS6194499 A JP S6194499A JP 59215439 A JP59215439 A JP 59215439A JP 21543984 A JP21543984 A JP 21543984A JP S6194499 A JPS6194499 A JP S6194499A
- Authority
- JP
- Japan
- Prior art keywords
- bass
- flat
- speaker
- magnetic circuit
- treble
- 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/02—Transducers using more than one principle simultaneously
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明はハイファイオーディオやカーオーディオ等に利
用される複合形平面スピーカに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a composite flat speaker used in high-fidelity audio, car audio, and the like.
従来例の構成とその問題点
最近のオーディオ界においては、より優れた再生を可能
にするため、種々の改良が実施されている。このような
要望を満たすために、複合形平面スピーカが開発されて
いる。共の代表例を第１図を用いて説明する。１は低音
用磁気回路であり、この低音用磁気回路１はセンタポー
ル２を有するプレート３上にリング状のマグネット４と
同じくり／グ状の上部プレート６によって構成されてい
る。この低音用磁気回路１にはフレーム６が結合されて
いる。上記低音用磁気回路１のセンターポール２の上面
中央部には凹部７が設けられ、この凹部７には高音用磁
気回路８が結合されており、この高音用磁気回路８はセ
ンターポール９を有するプレート１０上にリング状のマ
グネット１１と同じくリング状の上部プレート１２を積
層して構成されている。上記フレーム６０周辺部にはガ
スケット１３と共に低音用エツジ１４が結合され、この
低音用エツジ１４にｆｌ ＩＪング状の低音用平板振動
板１６が結合されている。この低音用平板振動板１５の
中央部には高音用エツジ１６を介して高音用平板振動板
１７が配置されている。上記低音用平板振動板１６の下
面には、上記低音用磁気回路１の磁気ギャップ１Ｂには
まり込むボイスコイル１９が結合され、このボイスコイ
ル１つの中間部はダンパー２ｏによって保持されている
。また、高音用平板振動板１７の下面には、上記高音用
磁気回路８の磁気ギャップ２１にはまり込む、ボイスコ
イル２２が結合され、このボイスコイル２２もダンパー
２３によって保持されている。Conventional configurations and their problems Recently, in the audio world, various improvements have been made to enable better reproduction. In order to meet such demands, composite planar speakers have been developed. A representative example of both will be explained using FIG. Reference numeral 1 denotes a bass magnetic circuit, and the bass magnetic circuit 1 is constructed of a ring-shaped magnet 4 on a plate 3 having a center pole 2, and a dowel-shaped upper plate 6. A frame 6 is coupled to this bass magnetic circuit 1. A recess 7 is provided in the center of the upper surface of the center pole 2 of the bass magnetic circuit 1, and a treble magnetic circuit 8 is coupled to the recess 7, and the treble magnetic circuit 8 has a center pole 9. It is constructed by stacking a ring-shaped magnet 11 and a ring-shaped upper plate 12 on a plate 10. A bass edge 14 is coupled together with a gasket 13 to the periphery of the frame 60, and a bass flat plate diaphragm 16 in the form of a fl IJ ring is coupled to this bass edge 14. A treble flat diaphragm 17 is disposed in the center of the bass flat diaphragm 15 with a treble edge 16 in between. A voice coil 19 that fits into the magnetic gap 1B of the bass magnetic circuit 1 is coupled to the lower surface of the bass flat diaphragm 16, and the middle portion of this voice coil is held by a damper 2o. Further, a voice coil 22 is coupled to the lower surface of the treble flat diaphragm 17 and fits into the magnetic gap 21 of the treble magnetic circuit 8, and this voice coil 22 is also held by a damper 23.
このような構成で低音は低音用平板振動板１５を駆動し
て発生させ、高音は高音用平板振動板１７を駆動して発
生させ、全帯域にわたって忠実な再生を行わせるように
なっている。従来の構成による問題点としては構造が複
雑で従ってコストが高くなる、高音用平板振動板１７の
外径部付近で波面が乱れて、平坦な周波数特性が得られ
難い、帯域分割用のネットワークが複雑なものが必要で
実装、生産上で作り難い等の欠点があった。With this configuration, bass sounds are generated by driving the flat diaphragm 15 for bass sounds, and high sounds are generated by driving the flat diaphragm 17 for treble sounds, so that faithful reproduction is performed over the entire band. The problems with the conventional configuration are that the structure is complicated and therefore the cost is high; the wavefront is disturbed near the outer diameter of the treble flat diaphragm 17, making it difficult to obtain flat frequency characteristics; and the band division network is It had drawbacks such as requiring complicated components and making it difficult to implement and produce.
発明の目的
本発明は上述の従来の構成の複合形平面スピーカの欠点
を除去し低コストの、高性能な、作り易い複合形平面ス
ピーカを提供することを目的とするものである。OBJECTS OF THE INVENTION It is an object of the present invention to eliminate the drawbacks of the above-described conventional composite planar speaker and provide a low-cost, high-performance, easy-to-manufacture composite planar speaker.
発明の構成
上記目的を達成するために本発明の複合形平面スピーカ
は、磁気回路に結合したフレームの周縁部にエツジを介
して結合した低音用平板振動板の中心部に載置するか、
この低音用平板振動板の中心部の一部を除去した部分が
平板状圧電素子よりなる高音スピーカを取付けて構成さ
れ、この構成とすることによって構成が簡単で組立てや
すく、特性的にも優れたものとすることができる。Structure of the Invention In order to achieve the above object, the composite planar speaker of the present invention is mounted in the center of a flat bass diaphragm connected via an edge to the peripheral edge of a frame connected to a magnetic circuit, or
A treble speaker made of a flat piezoelectric element is attached to a part of the central part of the bass flat diaphragm that has been removed, and this configuration makes it simple and easy to assemble, and has excellent characteristics. can be taken as a thing.
実施例の説明
以下、本発明の実施例を第２図を用いて説明する。３１
は磁気回路であり、この磁気回路３１はセンターポール
３２を有するプレート３３上にリング状のマグネット３
４と、リング状の上部プレート３５を配置し結合して構
成されている。この磁気回路３１にはフレーム３６が結
合され、このフレーム３６の周縁部にはガスケット３７
とともにエツジ３８が接着剤などを利用して結合されて
いる。このエツジ♀８には円板状の低音用平板振動板３
９が結合され、この低音用平板振動板３９の下面にはカ
ップリングコーン４０を介してボイスコイル４１が結合
され、このボイスコイル４１は中間部をダンパー４２で
保持され上記磁気回路３１の磁気ギャップ４３に偏心す
ることなくはまりこんでおり、これで低音スピーカが構
成されている。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIG. 31
is a magnetic circuit, and this magnetic circuit 31 includes a ring-shaped magnet 3 on a plate 33 having a center pole 32.
4 and a ring-shaped upper plate 35 are arranged and combined. A frame 36 is coupled to the magnetic circuit 31, and a gasket 37 is attached to the peripheral edge of the frame 36.
The edges 38 are also bonded together using adhesive or the like. This edge♀8 has a disk-shaped bass flat diaphragm 3.
A voice coil 41 is coupled to the lower surface of the bass flat diaphragm 39 via a coupling cone 40, and the voice coil 41 is held at its intermediate portion by a damper 42 to close the magnetic gap of the magnetic circuit 31. 43 without eccentricity, and this constitutes a bass speaker.
また、上記低音用平板振動板３９の上面中央部には、軽
量発泡樹脂などによって構成される緩衝材４４を介して
平板状圧電素子よりなる高音スピーカ４５が接着などの
方法で結合されている。この高音スピーカ４６からは給
電用のリード線４６が引出され、上記低音スピーカと並
列接続されている。Further, a treble speaker 45 made of a flat piezoelectric element is bonded to the center of the upper surface of the bass flat diaphragm 39 via a cushioning material 44 made of a lightweight foamed resin or the like by bonding or the like. A power supply lead wire 46 is drawn out from this high-pitched speaker 46 and connected in parallel with the low-pitched speaker.
このような構成で、低音は低音スピーカのボイスコイル
４１に印加される入力信号によって低音用平板振動板３
９が振動して発生し、高音はリード線４６を通して入力
信号を高音スピーカ４６に印加することによりたわみ振
動して発生し、全帯域にわたって忠実な再生が行われる
ことになる。With this configuration, bass sounds are produced by the bass flat diaphragm 3 by an input signal applied to the voice coil 41 of the bass speaker.
9 vibrates, and high-pitched sounds are generated by flexural vibrations by applying an input signal to the high-pitched speaker 46 through the lead wire 46, resulting in faithful reproduction over the entire band.
なお、上記実施例では、高音スピーカ４６を低音用平板
振動板３つの上面に載置した例を示したが、他の実施例
として、低音用平板振動板３９の中央部を円形に除去し
た構成とし、この円形に除去した部分に平板状圧電素子
よジなる高音スピーカを収納し、低音用平板振動板と制
動剤を兼ねる接着剤で結合して取付けた構成としてもよ
い。In the above embodiment, an example was shown in which the treble speaker 46 was placed on the top surface of the three bass flat diaphragms, but as another embodiment, a configuration in which the center portion of the bass flat diaphragm 39 was removed in a circular shape was shown. A treble speaker made of a flat piezoelectric element may be housed in this circularly removed portion, and the treble speaker may be attached to the flat diaphragm for bass sound by bonding it with an adhesive that also serves as a damping agent.
発明の効果
以上のように本発明の複合形平面スピーカは構成される
ため、平板状圧電素子よりなる高音スピーカを単に低音
用平板振動板に載置されるか、中央部の除去部分に取付
けるだけのため、構造が簡単で安価に生産でき、高音ス
ピーカ周辺のエツジによる波面の乱れが無く、甘た平面
構造にでさるためスムーズな周波数音圧特性が得られ、
圧電素子は基本的に容量性負荷で、かつ高インピーダン
スのため、帯域分割フィルタが不要で生産が容易である
などの利点をもち、工業的価値の大なるものである。Effects of the Invention Since the composite planar speaker of the present invention is configured as described above, a treble speaker made of a flat piezoelectric element can be simply placed on a flat bass diaphragm or attached to a removed portion in the center. Therefore, the structure is simple and can be produced at low cost, and there is no disturbance of the wave front due to edges around the high-pitched speaker, resulting in a smooth planar structure that provides smooth frequency and sound pressure characteristics.
Piezoelectric elements are basically capacitive loads and have high impedance, so they have the advantage of not requiring a band division filter and are easy to produce, and are of great industrial value.
第１図は従来の複合形平面スピーカの断面図、第２図は
本発明の複合形平面スピーカの一実施例を示す断面図で
ある。
３１・・・・・・磁気回路、３２・・・・・センターポ
ール、３３・−・・・・プレート、３４・・・・・マグ
ネット、３６・・・・・・上部プレート、３６・・・・
・・フレーム、３７ ・・・ガスケット、３８・・・・
エツジ、３９・・・・低音用平板振動板、４ｏ・・・・
・カップリングコーン、４１ ・・・・ボイスコイル、
４２・・・・・ダン／ニー、’４３・・・・・・磁気ギ
ャップ、４４・・・・・・緩衝材、４５・・・・・高音
スピーカ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図FIG. 1 is a sectional view of a conventional composite type flat speaker, and FIG. 2 is a sectional view showing an embodiment of the composite type flat speaker of the present invention. 31... Magnetic circuit, 32... Center pole, 33... Plate, 34... Magnet, 36... Upper plate, 36...・
...Frame, 37 ...Gasket, 38...
Edge, 39... flat plate diaphragm for bass, 4o...
・Coupling cone, 41 ・・・Voice coil,
42...Dan/Knee, '43...Magnetic gap, 44...Buffer material, 45...Treble speaker. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2
Claims (1)
て結合した低音用平板振動板の中心部に載置するか、こ
の低音用平板振動板の中心部の一部を除去した部分に平
板状圧電素子よりなる高音スピーカを取付けてなる複合
形平面スピーカ。It is placed in the center of a bass flat diaphragm connected via an edge to the periphery of the frame connected to the magnetic circuit, or a flat plate is placed on a part of the bass flat diaphragm with a part of the center removed. A composite flat speaker equipped with a high-pitched speaker made of a piezoelectric element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59215439A JPS6194499A (en) | 1984-10-15 | 1984-10-15 | Composite flat speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59215439A JPS6194499A (en) | 1984-10-15 | 1984-10-15 | Composite flat speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6194499A true JPS6194499A (en) | 1986-05-13 |
Family
ID=16672364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59215439A Pending JPS6194499A (en) | 1984-10-15 | 1984-10-15 | Composite flat speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6194499A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7391879B2 (en) | 2002-08-16 | 2008-06-24 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Loudspeaker |
| WO2018193038A1 (en) * | 2017-04-21 | 2018-10-25 | USound GmbH | Loudspeaker unit comprising an electrodynamic loudspeaker and a mems loudspeaker |
| CN110677788A (en) * | 2019-09-24 | 2020-01-10 | 维沃移动通信有限公司 | Sound production module and electronic equipment |
-
1984
- 1984-10-15 JP JP59215439A patent/JPS6194499A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7391879B2 (en) | 2002-08-16 | 2008-06-24 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Loudspeaker |
| WO2018193038A1 (en) * | 2017-04-21 | 2018-10-25 | USound GmbH | Loudspeaker unit comprising an electrodynamic loudspeaker and a mems loudspeaker |
| CN110603816A (en) * | 2017-04-21 | 2019-12-20 | 悠声股份有限公司 | Speaker unit having electromagnetic speaker and micro speaker |
| CN110603816B (en) * | 2017-04-21 | 2021-12-07 | 悠声股份有限公司 | Speaker unit having electromagnetic speaker and micro speaker |
| US11418891B2 (en) | 2017-04-21 | 2022-08-16 | USound GmbH | Loudspeaker unit comprising an electrodynamic loudspeaker and a MEMS loudspeaker |
| CN110677788A (en) * | 2019-09-24 | 2020-01-10 | 维沃移动通信有限公司 | Sound production module and electronic equipment |
| CN110677788B (en) * | 2019-09-24 | 2021-01-15 | 维沃移动通信有限公司 | Sound production module and electronic equipment |
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