JPS58222699A - Diaphragm for speaker - Google Patents
Diaphragm for speakerInfo
- Publication number
- JPS58222699A JPS58222699A JP10593182A JP10593182A JPS58222699A JP S58222699 A JPS58222699 A JP S58222699A JP 10593182 A JP10593182 A JP 10593182A JP 10593182 A JP10593182 A JP 10593182A JP S58222699 A JPS58222699 A JP S58222699A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- speaker
- resin
- aromatic
- polyether aromatic
- 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
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
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】
本発明はスピーカ用撮動板に関し、特にビスフェノール
と２個の・・ロゲイ原子がオルト位又はパラ位のケトン
基により活性化されている芳香族シバライドよりなるポ
リエーテル芳香族ケトン型樹脂を成形することにより、
周波数特性の優れたスピーカ用振動板を提供することを
目的とするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pickup plate for a speaker, and in particular to a polyether aromatic plate made of bisphenol and an aromatic cybaride in which two logei atoms are activated by a ketone group at the ortho or para position. By molding the group ketone type resin,
The object of the present invention is to provide a speaker diaphragm with excellent frequency characteristics.
従来、プラスチックからなるスピーカ用振動板トシてポ
リエチレンテレフタレートフィルムが使用されてきた。Conventionally, polyethylene terephthalate film has been used for speaker diaphragms made of plastic.
しかし、ポリエチレンテレフタレートは弾性率が小さく
、フルレンジのスピーカの場合には高域共振周波数（ｆ
Ｈ）が低く、高音再生は必ずしも良好ではない。However, polyethylene terephthalate has a small elastic modulus, and in the case of a full-range speaker, the high resonant frequency (f
H) is low, and treble reproduction is not necessarily good.
本発明は上記欠点をなくし、優れたスピーカ用振動板を
提供するものである。すなわち、本発明の振動板はハイ
ドロキノン等のビスフェノールと、４．４′−ジフルオ
ロベンゾフェノン等の２個のハロゲン原子がオルト位又
はパラ位のケトン基により活性化されている芳香族ジ・
・ライドよりなるポリエーテル芳香族ケトン型樹脂を成
形したものである。The present invention eliminates the above drawbacks and provides an excellent speaker diaphragm. That is, the diaphragm of the present invention contains bisphenol such as hydroquinone and aromatic diphenol such as 4,4'-difluorobenzophenone in which two halogen atoms are activated by a ketone group at the ortho or para position.
・It is molded from polyether aromatic ketone type resin made of Ride.
このフィルムの弾性率は３０，０００ （Ｋｇ／ｃｒり
であす、ポリエチレンテレフタレートフィルムの１９０
００ （Ｋｇ ／ｃｌ ）と比べると非常に大きい０ま
た、このフィルムを成形した振動板は弾性率が置いため
ｆＨが高く、高音まで再生可能となる。また、このフィ
ルムは熱変形温度が１６０℃近辺にあり優れた耐熱性を
示す。しかも耐燃性試験では自己消火性であるため、こ
のフィルムを成形した振動板は高温に耐え、難燃性を有
する。従って耐熱性。The elastic modulus of this film is 30,000 (Kg/cr), 190% of that of polyethylene terephthalate film.
00 (Kg/cl), which is very large compared to 0.Furthermore, the diaphragm made of this film has a high modulus of elasticity, so it has a high fH and can reproduce high-pitched sounds. Furthermore, this film has a heat distortion temperature of around 160° C. and exhibits excellent heat resistance. Moreover, since it is self-extinguishing in flame resistance tests, diaphragms made of this film can withstand high temperatures and are flame retardant. Therefore heat resistant.
耐燃性が要求されるスピーカ用としては最適の振動板を
得ることができる。It is possible to obtain a diaphragm that is optimal for use in speakers that require flame resistance.
次に実施例について説明する。Next, an example will be described.
振動板成形用樹脂として下記に示した構造を持つ、ハイ
ドロキノンと４，４′−ジハロベンゾフエとからなるポ
リエーテル型芳香族ケトン型樹脂を用い、圧空成形法に
よシ振動板の成形を行い、直径４０鵡φ、厚さ８０μｍ
のコーン型振動板を得た。図のａはこの振動板を用いた
スピーカの音響特性、図のｂは同じ直径と厚みを持つポ
リエチレンテレフタレートフィルムでなる振動板を用い
た音響特性を示している０図から明らかなように本実施
例のフィルム振動板を用いたスピーカは、弾性率が高い
ためにｆＨが高くなり高音再生が良好になっている。A polyether type aromatic ketone type resin consisting of hydroquinone and 4,4'-dihalobenzophene having the structure shown below is used as the resin for molding the diaphragm, and a diaphragm is molded by the pressure molding method. 40mmφ, thickness 80μm
A cone-shaped diaphragm was obtained. Figure a shows the acoustic characteristics of a speaker using this diaphragm, and figure b shows the acoustic characteristics of a speaker using a diaphragm made of polyethylene terephthalate film with the same diameter and thickness. The speaker using the film diaphragm in this example has a high modulus of elasticity, so it has a high fH and good high-frequency sound reproduction.
〔比較例〕
下記に示した構造を持つ８０μｍの厚さのポリビスフェ
ノールｍ樹脂を用い、
を３ニアの割合で混合
実施例１と全く同様に成形し、振動板を得た。[Comparative Example] A diaphragm was obtained by molding a polybisphenol m resin having a structure shown below and having a thickness of 80 μm in exactly the same manner as in Mixing Example 1 at a ratio of 3 nia.
この振動板の音響特性は、このボリアリレート型樹脂Ω
弾性率が２１００（Ｋｇ／ｄ）と実施例１のポリエーテ
ル芳香族ケトン型樹脂の弾性率３０００（Ｋｇ／ｃｒＩ
）に比べ低いため、実施例１のポリエーテル芳香族ケト
ン型樹脂の振動板の音響特性に比べ高音の再生が良好で
はなかった。The acoustic characteristics of this diaphragm are based on the polyarylate resin Ω
The elastic modulus of the polyether aromatic ketone type resin of Example 1 is 2100 (Kg/d) and 3000 (Kg/crI).
), the reproduction of high-pitched sounds was not as good as the acoustic characteristics of the polyether aromatic ketone type resin diaphragm of Example 1.
以上のように本発明によれば、ハイドロキノン等のビス
フェノールと、４．４’−ジフルオロベンゾフェノン等
の２個のハロゲン原子がオルト位又はバラ位のケトン基
により活性化されている芳香族シバライドよりなるポリ
エーテル芳香族ケトン型樹脂を用いることにより、周波
数特性の優れたスピーカ用振動板を得ることができる利
点を有する。As described above, according to the present invention, it is composed of a bisphenol such as hydroquinone and an aromatic cybaride such as 4,4'-difluorobenzophenone in which two halogen atoms are activated by a ketone group at the ortho or rose position. The use of polyether aromatic ketone type resin has the advantage that a speaker diaphragm with excellent frequency characteristics can be obtained.
図は本発明のスピーカ用振動板と従来のスピーカ用振動
板の音圧周波数特性の比較図である。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ミ
さ
國
先
）ｆｌ ７１Ｍ （Ｈｚ）The figure is a comparison diagram of the sound pressure frequency characteristics of the speaker diaphragm of the present invention and a conventional speaker diaphragm. Name of agent: Patent attorney Toshio Nakao and one other person (Misakuni Saki) fl 71M (Hz)
Claims (1)
ルオロベンゾフエノン等の２個のハロゲン原子がオルト
位又はパラ位のケント基により活性化されている芳香族
ジ・・ライドよりなるポリエーテル芳香族ケトン型樹脂
、又はポリエーテル芳香族ケトンを主体とする樹脂を成
形したことを特徴とするスピーカ用振動板。A polyether aromatic compound consisting of a bisphenol such as hydroquino 7 and an aromatic di-ride such as 4,4'-difluorobenzophenone in which two halogen atoms are activated by a Kent group at the ortho or para position. A speaker diaphragm characterized by being molded from a ketone type resin or a resin mainly composed of a polyether aromatic ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10593182A JPS58222699A (en) | 1982-06-18 | 1982-06-18 | Diaphragm for speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10593182A JPS58222699A (en) | 1982-06-18 | 1982-06-18 | Diaphragm for speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58222699A true JPS58222699A (en) | 1983-12-24 |
Family
ID=14420594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10593182A Pending JPS58222699A (en) | 1982-06-18 | 1982-06-18 | Diaphragm for speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58222699A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62281700A (en) * | 1986-05-30 | 1987-12-07 | Pioneer Electronic Corp | Diaphragm with edge for speaker |
| JP2008131239A (en) * | 2006-11-20 | 2008-06-05 | Mitsubishi Plastics Ind Ltd | Diaphragm for electroacoustic transducer and film for the diaphragm |
| US8389672B2 (en) | 2006-01-23 | 2013-03-05 | Mitsubishi Plastics, Inc. | Diaphragm for electro-accoustic transducer |
| JP2021010189A (en) * | 2020-10-19 | 2021-01-28 | 信越ポリマー株式会社 | Diaphragm film |
-
1982
- 1982-06-18 JP JP10593182A patent/JPS58222699A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62281700A (en) * | 1986-05-30 | 1987-12-07 | Pioneer Electronic Corp | Diaphragm with edge for speaker |
| US8389672B2 (en) | 2006-01-23 | 2013-03-05 | Mitsubishi Plastics, Inc. | Diaphragm for electro-accoustic transducer |
| US8623970B2 (en) | 2006-01-23 | 2014-01-07 | Mitsubishi Plastics, Inc. | Diaphragm for electro-acoustic transducer |
| JP2008131239A (en) * | 2006-11-20 | 2008-06-05 | Mitsubishi Plastics Ind Ltd | Diaphragm for electroacoustic transducer and film for the diaphragm |
| JP2021010189A (en) * | 2020-10-19 | 2021-01-28 | 信越ポリマー株式会社 | Diaphragm film |
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