JPH02312396A - Speaker diaphragm for medium/high-pitched sound - Google Patents

Speaker diaphragm for medium/high-pitched sound

Info

Publication number
JPH02312396A
JPH02312396A JP13346089A JP13346089A JPH02312396A JP H02312396 A JPH02312396 A JP H02312396A JP 13346089 A JP13346089 A JP 13346089A JP 13346089 A JP13346089 A JP 13346089A JP H02312396 A JPH02312396 A JP H02312396A
Authority
JP
Japan
Prior art keywords
dome
shaped diaphragm
edge
diaphragm
dome type
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
JP13346089A
Other languages
Japanese (ja)
Inventor
Sueaki Fukuhara
末明 福原
Shoji Tanaka
祥司 田中
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 JP13346089A priority Critical patent/JPH02312396A/en
Publication of JPH02312396A publication Critical patent/JPH02312396A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To easily increase a high frequency limiting frequency (fH) by folding an outer peripheral part being the edge sealding part of a dome type diaphragm in a cone form. CONSTITUTION:A speaker unit using the dome type diaphragm is constituted of the dome type diaphragm 1, an edge 2, a voice coil bobbin 3, an edge frame 4, a baffle 5, a plate 6, a magnet 7 and a yoke 8. Here, the outer peripheral part being the edge sealding part of the dome type diaphragm 1 is set to be a form that it is folded in the cone form. Thus, the strength of the diaphragm itself can be improved, and fH can be increased.

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スピーカシステム等に使用されるド
ーム型振動板を有する、中・高音用スピーカ振動板に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a speaker diaphragm for medium and high-frequency sounds having a dome-shaped diaphragm used in high-fidelity speaker systems and the like.

従来の技術 ハイファイスピーカシステムにおいて、スピーカユニッ
トの指向性は広い方が音質が良いとされている。そのた
め、中・高音再生にはドーム型振動板が広く使用されて
いる。In conventional high-fidelity speaker systems, it is believed that the wider the directivity of the speaker unit, the better the sound quality. For this reason, dome-shaped diaphragms are widely used for medium and high-frequency sound reproduction.

以下図面を参照しながら、従来のドーム型振動板の一例
について説明する。An example of a conventional dome-shaped diaphragm will be described below with reference to the drawings.

第２図は従来のドーム型振動板を有するスピーカユニッ
トの部分断面図を示すものである。第２図において１は
ドーム型振動板である。２はエツジ、３はボイスコイル
ボビンであり、接着剤等により振動板１に固定される。FIG. 2 shows a partial sectional view of a conventional speaker unit having a dome-shaped diaphragm. In FIG. 2, 1 is a dome-shaped diaphragm. 2 is an edge, and 3 is a voice coil bobbin, which are fixed to the diaphragm 1 with adhesive or the like.

４はエツジ２を固定スルエツジフレーム、６はパフフル
、６，７．８は界磁部である。以上のように構成される
ヌビーカは動電型スピーカであり、その動作については
、良く知られておるので説明は省略する。4 is a through edge frame that fixes the edge 2, 6 is a puffful, and 6, 7.8 are field parts. The NUBICA configured as described above is an electrodynamic speaker, and its operation is well known, so a description thereof will be omitted.

発明が解決しようとする課題 しかしながら、第２図に示すドーム型振動板の形状によ
るもので、高域限界周波数（ｆＨ）を上げようとすると
、振動表面を窒化処理したり、ポロンを蒸着させたり、
プラズマＣＶＤ法によるダイヤモンドコートして、振動
板の強度を上げる工夫がされている。これらはいずれも
製法的に時間を要したり、それらの処理をするために材
料を高価なものにしなければならないという問題を有し
ている。Problems to be Solved by the Invention However, due to the shape of the dome-shaped diaphragm shown in Fig. 2, in order to increase the high limit frequency (fH), it is necessary to nitride the oscillation surface or deposit poron. ,
A diamond coating is applied using plasma CVD to increase the strength of the diaphragm. All of these have problems in that they require time-consuming manufacturing methods and require expensive materials for their processing.

本発明は上記問題点に鑑み、材料選定も容易で製法も簡
単なドーム型振動板を提供するものである。In view of the above-mentioned problems, the present invention provides a dome-shaped diaphragm that is easy to select from materials and easy to manufacture.

課題を解決するための手段 上記問題点を解決するための本発明のドーム型振動板は
、外周部のエツジ貼付部をコーン状に折り返した形状と
したことを特徴としている。Means for Solving the Problems The dome-shaped diaphragm of the present invention for solving the above-mentioned problems is characterized in that the edge attachment portion on the outer periphery is folded back into a cone shape.

作　　用 本発明は上記した形状とすることにより、振動自体の強
度を向上させることができ、ｆＨを高くすることができ
も材料は、上記した形状が一体で形成することができる
材料であれば何でもよい。Effect The present invention can improve the strength of the vibration itself and increase fH by forming the above-described shape. Anything is fine.

又後の表面処理等も不要にすることが可能である。Further, it is possible to eliminate the need for subsequent surface treatment.

もちろん表面処理を行うと、一層ｆＨを上げることがで
きる。Of course, fH can be further increased by surface treatment.

実施例 以下本発明の一実施例のドーム型振動板について、図面
を参照しながら説明する。EXAMPLE Hereinafter, a dome-shaped diaphragm according to an example of the present invention will be described with reference to the drawings.

第１図は本発明の一実施例における、ドーム型振動板を
用いたスピーカユニットの部分断面図を示すものである
。第１図において、１はドーム型振動板、１ａはドーム
型振動板１と一体で形成されている外周折り返し部分で
ある。２〜８は第２図と同一の溝成である。第３図は、
従来のドーム型振動板と、本発明の一実施例におけるド
ーム型振動板の、コンピュータシミュレーシ町ンによる
周波数特性を示す。第３図において、Ａは本発明の実施
例によるドーム型振動板の周波数特性、Ｂは従来のドー
ム型振動板の周波数特性である。FIG. 1 shows a partial sectional view of a speaker unit using a dome-shaped diaphragm in one embodiment of the present invention. In FIG. 1, 1 is a dome-shaped diaphragm, and 1a is an outer circumferential folded portion formed integrally with the dome-shaped diaphragm 1. In FIG. 2 to 8 are the same groove configurations as in FIG. Figure 3 shows
2 shows frequency characteristics of a conventional dome-shaped diaphragm and a dome-shaped diaphragm according to an embodiment of the present invention based on computer simulation. In FIG. 3, A is the frequency characteristic of the dome-shaped diaphragm according to the embodiment of the present invention, and B is the frequency characteristic of the conventional dome-shaped diaphragm.

以上のように本発明は、ドーム型振動板の外周部に折り
返し形状を設けることにより容易にｆＨを上げることが
できる。材料は、折り返し部を一体で形成することがで
きるものであれば何でも良い。又後の表面処理も不要に
することが可能である。もちろん表面処理を行えばｆＢ
（をさらに上げることができる。As described above, according to the present invention, fH can be easily increased by providing a folded shape on the outer periphery of the dome-shaped diaphragm. Any material may be used as long as the folded portion can be integrally formed. It is also possible to eliminate the need for subsequent surface treatment. Of course, if surface treatment is performed, fB
(can be further increased.

発明の効果 以上のように本発明は、ドーム型振動板のエツジ貼付部
である外周部をコーン状に折り返すことにより、容易に
高域限界周波数（ｆＨ）を上げることができる。Effects of the Invention As described above, according to the present invention, the high frequency limit (fH) can be easily increased by folding back the outer peripheral portion of the dome-shaped diaphragm, which is the edge-attached portion, into a cone shape.

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

第１図は本発明の一実施例におけるドーム型振動板を用
いたスピーカユニットの部分断面図、第２図は従来のド
ーム型振動板を用いたスピーカユニットの部分断面図、
第３図はコンピュータシミュレーシ四ンによる従来のド
ーム型振動板と本発明の実施例におけるドーム型振動板
とを比較する周波数特性図である。 １・・・・・・ドーム型振動板、１ａ・・・・・・ドー
ム型振動板の外周折り返し部分、２・・・・・・エツジ
、３・・・・・・ボイスコイルボビン、４・・・・・・
エツジフレーム、６・・・・・・バッフル、６・・・・
・・プレート、７・・・・・・マグネット、８・・・・
・・ヨーク。FIG. 1 is a partial sectional view of a speaker unit using a dome-shaped diaphragm according to an embodiment of the present invention, and FIG. 2 is a partial sectional view of a speaker unit using a conventional dome-shaped diaphragm.
FIG. 3 is a frequency characteristic diagram comparing a conventional dome-shaped diaphragm and a dome-shaped diaphragm according to an embodiment of the present invention based on a computer simulation. 1...Dome-shaped diaphragm, 1a...Outer folded portion of dome-shaped diaphragm, 2...Edge, 3...Voice coil bobbin, 4...・・・・・・
Edge frame, 6...Baffle, 6...
...Plate, 7...Magnet, 8...
··yoke.

Claims (1)

【特許請求の範囲】[Claims] ドーム型振動板と、前記ドーム型振動板の外周部に貼り
付けられたエッジとを備え、上記ドーム型振動板のエッ
ジ貼付部をコーン状に折り返した形状としたことを特徴
とする中・高音用スピーカ振動板。A medium/high frequency sound device comprising a dome-shaped diaphragm and an edge attached to the outer periphery of the dome-shaped diaphragm, the edge attachment portion of the dome-shaped diaphragm being folded back into a cone shape. speaker diaphragm.
JP13346089A 1989-05-26 1989-05-26 Speaker diaphragm for medium/high-pitched sound Pending JPH02312396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13346089A JPH02312396A (en) 1989-05-26 1989-05-26 Speaker diaphragm for medium/high-pitched sound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13346089A JPH02312396A (en) 1989-05-26 1989-05-26 Speaker diaphragm for medium/high-pitched sound

Publications (1)

Publication Number Publication Date
JPH02312396A true JPH02312396A (en) 1990-12-27

Family

ID=15105300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13346089A Pending JPH02312396A (en) 1989-05-26 1989-05-26 Speaker diaphragm for medium/high-pitched sound

Country Status (1)

Country Link
JP (1) JPH02312396A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7245739B2 (en) 2004-01-14 2007-07-17 Pioneer Corporation Dome type diaphragm and loudspeaker apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7245739B2 (en) 2004-01-14 2007-07-17 Pioneer Corporation Dome type diaphragm and loudspeaker apparatus

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