JPS6271400A - Coaxial flat type speaker unit - Google Patents

Coaxial flat type speaker unit

Info

Publication number
JPS6271400A
JPS6271400A JP21147285A JP21147285A JPS6271400A JP S6271400 A JPS6271400 A JP S6271400A JP 21147285 A JP21147285 A JP 21147285A JP 21147285 A JP21147285 A JP 21147285A JP S6271400 A JPS6271400 A JP S6271400A
Authority
JP
Japan
Prior art keywords
tweeter
woofer
speaker unit
coaxial flat
magnet
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
JP21147285A
Other languages
Japanese (ja)
Inventor
Akira Yoshikawa
昭 吉川
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP21147285A priority Critical patent/JPS6271400A/en
Publication of JPS6271400A publication Critical patent/JPS6271400A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve the directivity of woofer of the titled speaker by using a strong rare earth magnet for a field part. CONSTITUTION:The rare earth magnet 1' is used for a tweeter magnet. As a result, the outer diameter of the entire tweeter can be made smaller, and the inner diameter of effective vibration of woofer can be made smaller to improve the directivity of the woofer and to make the sound pressure higher. Since the depth of the tweeter can be made shorter, the entire unit can also be made thinner in depth.

Description

【発明の詳細な説明】 産業上の第１１用分野 本発明は同軸平板型スピーカフルニットに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Eleventh Industrial Field of the Invention The present invention relates to a coaxial flat speaker full knit.

従来の技術 近年、同動平板型スピーカユニ・ノドは、指向性の良い
ものが求められている。BACKGROUND OF THE INVENTION In recent years, there has been a demand for co-moving flat-plate speaker units with good directivity.

以下、図面を参照［７ながら、上述した従来の同軸平板
型スピーカユニットの一例について説明する。Hereinafter, an example of the above-mentioned conventional coaxial flat-plate speaker unit will be described with reference to the drawings [7].

第３図は従来の同軸平板型スピーカユニットの断面図を
示すものである。第３図において、１はフェライトマグ
ネット、２はツイータプレート、Ｓはツイータヨーク、
４はツイータ振動板、６はツイータボイスコイル、６は
ウーハ界磁部、７はウーハ振動板、８はウーハボイスコ
イル、９はウーハフレームである。FIG. 3 shows a cross-sectional view of a conventional coaxial flat-plate speaker unit. In Fig. 3, 1 is a ferrite magnet, 2 is a tweeter plate, S is a tweeter yoke,
4 is a tweeter diaphragm, 6 is a tweeter voice coil, 6 is a woofer field section, 7 is a woofer diaphragm, 8 is a woofer voice coil, and 9 is a woofer frame.

以上のように構成された同軸平板型スピーカユニットに
ついて、以下その動作について説明する。The operation of the coaxial flat speaker unit configured as described above will be described below.

まず、ツイータはツイータ界磁部１．２．３のギヤング
部に挿入されたボイスコイル５の巻線１１ζ電流が流れ
ると力が発生し、その力が撮動板４を上下に振動させる
。ウーハについて基本的な動作は同様である。First, in the tweeter, when a current flows through the winding 11ζ of the voice coil 5 inserted into the gigantic part of the tweeter field part 1.2.3, a force is generated, and this force causes the imaging plate 4 to vibrate up and down. The basic operation of the woofer is the same.

発明が解決し、ようとする問題点 しかしながら上記のような構成では、ツイータのマグネ
、Ｊトに７エライトマグネット１を用いたためツイータ
全体の外径が大きくなり、ウーハの有効振動内径がφｄ
＝φ８２２大きくなるためウーハの指向性が悪くなると
いう問題点を万していた。Problems to be solved and attempted by the invention However, in the above configuration, since the 7-elite magnet 1 is used for the tweeter magnet, the outer diameter of the entire tweeter becomes large, and the effective vibration inner diameter of the woofer becomes φd.
= φ822 Because of the large size, there was a problem that the directivity of the woofer deteriorated.

本発明は上記問題点に１み、ウー７・の指向性の良い同
軸平板型スピーカユニットを提供するものである。The present invention addresses the above-mentioned problems by providing a coaxial flat-plate type speaker unit with good directivity.

問題点を解決するための手段 上記問題点を解決するために本発明の同軸平板型スピー
カユニットは界磁部に強力な希土類マグネット、あるい
は鋳造マグネットを用いたツイータと、リング状の振動
板を持つウーハとを備えたものである。Means for Solving the Problems In order to solve the above problems, the coaxial flat speaker unit of the present invention has a tweeter using a strong rare earth magnet or a cast magnet in the field part, and a ring-shaped diaphragm. It is equipped with a woofer.

作　　　用 本発明は上記した構成によってツイータ全体の外径を小
さくしウーハ撮動板の有効振動内径を小さくして、ウー
ハの指向性を良くすることとなる。Operation The present invention improves the directivity of the woofer by reducing the outer diameter of the entire tweeter and reducing the effective vibration inner diameter of the woofer imaging plate with the above-described configuration.

実施例 以下本発明の一実施例の同軸平板型スピーカユニットに
ついて、図面を参照しながら説明する。EXAMPLE Hereinafter, a coaxial flat speaker unit according to an example of the present invention will be described with reference to the drawings.

第１図は本発明の実施例における同軸平板型スピーカユ
ニットの断面図を示すものである。第１図において、１
′は希土類マグネット、２〜９については第３図と同じ
であるので説明は省略する。FIG. 1 shows a sectional view of a coaxial flat speaker unit in an embodiment of the present invention. In Figure 1, 1
' is a rare earth magnet, and 2 to 9 are the same as in FIG. 3, so their explanation will be omitted.

以上のように構成された同軸平板型スピーカユニットに
ついて、シ下その動作を説明する。The operation of the coaxial flat-plate speaker unit configured as described above will now be described.

第１図において基本的な動作は、第３図に示す従来のス
ピーカユニットと同じであるが、本実施例ておいてはツ
イータのマグネットに希土類マグネ１．ト例えばサマリ
ウムコバルトマグネント１′を用いることにより、ツイ
ータ全体の外径を小さくして、ウーハの有効撮動内径を
φｄ’＝φ６８と小さくすることで、ウーハの指向性を
改善することができるとともに、音圧を高めることがで
きる。The basic operation in FIG. 1 is the same as that of the conventional speaker unit shown in FIG. 3, but in this embodiment, a rare earth magnet 1. For example, by using samarium cobalt magnet 1', the overall outer diameter of the tweeter can be reduced, and the effective imaging inner diameter of the woofer can be reduced to φd'=φ68, thereby improving the directivity of the woofer. At the same time, the sound pressure can be increased.

さらに本実施例の同軸平板型スピーカユニットはツイー
タの厚みを薄くすることができて全体を薄型にすること
ができた。Furthermore, in the coaxial flat speaker unit of this embodiment, the thickness of the tweeter can be made thinner, and the overall thickness can be made thinner.

第２図に本実施例の同軸平板型スピーカユニットと従来
の同軸平板型スピーカユニ７）の指向性をコンピュータ
ー７ミユレーシヨンにより計算したものであり、本実施
例の指向性がすぐれていることがわかる。Figure 2 shows the directivity of the coaxial flat-plate speaker unit of this embodiment and the conventional coaxial flat-plate speaker unit 7) calculated by computer simulation, and it can be seen that the directivity of this embodiment is excellent. .

また、他にツイータのマグネットとして鋳造マグ４　、
ｈ　例りばアルニコマグネ７）を用いても上記実施例と
同様にツイータ全体の外径を小さくすることができ、ウ
ーノ・の指向性を改善することができる。In addition, we also have cast mag 4 as a tweeter magnet,
h For example, even if Alnico Magne 7) is used, the outer diameter of the entire tweeter can be reduced as in the above embodiment, and the directivity of Uno can be improved.

発明の効果 以上のように本発明はツイータのマグネットに希土類マ
グネット、あるいは鋳造マグネットを用いることにより
、ツイータ全体の外径を小さくして、ウーハの有効振動
内径を小さくすることで、ウー・・の指向性を改善する
ことができる。また、ウーハの音圧をも高めることがで
きる。Effects of the Invention As described above, the present invention reduces the outer diameter of the entire tweeter by using a rare earth magnet or a cast magnet for the tweeter magnet, thereby reducing the effective vibration inner diameter of the woofer. Directivity can be improved. Furthermore, the sound pressure of the woofer can also be increased.

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

第１図は本発明の実施例における同軸平板型スピーカユ
ニットの断面図、第２図は本実施例と従来の同軸平板型
スピーカユニットの指向性図、第３図は従来の同軸平板
型スピーカユニ７）の断面図である。 １′・・・・・希土類マグネット、２・・・・・・ツイ
ータプレート、３・・・・ツイータヨーク、４・・・・
ツイータ振動板、６・・・・・ツイータボイスコイル、
６・・・　ウーハ界磁部、７・・・・・・ウーハ振動板
、８・・・・・・ウーノ・ボイスコイル、９・・・・・
ウーハフレーム。FIG. 1 is a sectional view of a coaxial flat speaker unit according to an embodiment of the present invention, FIG. 2 is a directivity diagram of this embodiment and a conventional coaxial flat speaker unit, and FIG. 3 is a sectional view of a conventional coaxial flat speaker unit. 7) is a cross-sectional view. 1'... Rare earth magnet, 2... Tweeter plate, 3... Tweeter yoke, 4...
Tweeter diaphragm, 6...Tweeter voice coil,
6... Woofer field section, 7... Woofer diaphragm, 8... Uno voice coil, 9...
Wooha frame.

Claims (2)

【特許請求の範囲】[Claims] （１）界磁部に希土類マグネットを用いたツイータと、
リング状の振動板を持つウーハとを備えたことを特徴と
する同軸平板型スピーカユニット。(1) A tweeter using a rare earth magnet in the field part,
A coaxial flat-plate speaker unit characterized by comprising a woofer having a ring-shaped diaphragm. （２）界磁部に鋳造マグネットを用いたツイータと、リ
ング状の振動板を持つウーハとを備えたことを特徴とす
る同軸平板型スピーカユニット。(2) A coaxial flat-plate speaker unit characterized by comprising a tweeter using a cast magnet in the field part and a woofer having a ring-shaped diaphragm.
JP21147285A 1985-09-25 1985-09-25 Coaxial flat type speaker unit Pending JPS6271400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21147285A JPS6271400A (en) 1985-09-25 1985-09-25 Coaxial flat type speaker unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21147285A JPS6271400A (en) 1985-09-25 1985-09-25 Coaxial flat type speaker unit

Publications (1)

Publication Number Publication Date
JPS6271400A true JPS6271400A (en) 1987-04-02

Family

ID=16606507

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21147285A Pending JPS6271400A (en) 1985-09-25 1985-09-25 Coaxial flat type speaker unit

Country Status (1)

Country Link
JP (1) JPS6271400A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK178826B1 (en) * 2015-11-03 2017-02-27 Fibona Acoustics Aps Loudspeaker membrane and low-profile loudspeaker

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5586289A (en) * 1978-12-25 1980-06-28 Hitachi Metals Ltd Magnetic circuit for speaker
JPS5850580B2 (en) * 1978-09-30 1983-11-11 長野ノバフォ−ム株式会社 Manufacturing method of rope-shaped cushioning material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850580B2 (en) * 1978-09-30 1983-11-11 長野ノバフォ−ム株式会社 Manufacturing method of rope-shaped cushioning material
JPS5586289A (en) * 1978-12-25 1980-06-28 Hitachi Metals Ltd Magnetic circuit for speaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK178826B1 (en) * 2015-11-03 2017-02-27 Fibona Acoustics Aps Loudspeaker membrane and low-profile loudspeaker

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