JPH0380800A - Manufacture of damper for speaker - Google Patents
Manufacture of damper for speakerInfo
- Publication number
- JPH0380800A JPH0380800A JP21816289A JP21816289A JPH0380800A JP H0380800 A JPH0380800 A JP H0380800A JP 21816289 A JP21816289 A JP 21816289A JP 21816289 A JP21816289 A JP 21816289A JP H0380800 A JPH0380800 A JP H0380800A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- speaker
- base material
- around
- impregnated
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims abstract description 7
- 239000004760 aramid Substances 0.000 claims abstract description 7
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 150000003014 phosphoric acid esters Chemical class 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 10
- 239000000835 fiber Substances 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241001417494 Sciaenidae Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は各種音’８’ｆｉ器に利用されるスピーカ用ダ
ンパーの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing a speaker damper used in various sound '8' FI devices.
従来の技術
一般に、スピーカは第２図に示すように構成されていた
。すなわち、センターボール１を有するプレート２上に
リング状のマグネット３を積層し、このマグネット３上
に同じくリング状の上部プレート４を積層し結合して磁
気回路５を構成している。磁気回路５上である上部プレ
ート４上に、フレーム６を結合し、このフレーム６の周
縁部にガスゲット７とともに、フリーエツジなどのエツ
ジ８を取付け、さらに、このエツジ８に振動板９の周縁
部を結合している。この振動板９の、中央部には、磁気
回路５の界磁部の磁気ギャップ１０に正しくはまり込む
ようにダンパー１１で中間部を支持されたボイスコイル
１２を結合し、しかも、この振動板９の中央部上面にダ
ストキャップ１３を貼付けている０以上により、スピー
カ１４が構成されていた。2. Description of the Related Art In general, a speaker has been constructed as shown in FIG. That is, a ring-shaped magnet 3 is laminated on a plate 2 having a center ball 1, and a ring-shaped upper plate 4 is laminated on top of this magnet 3 and coupled to form a magnetic circuit 5. A frame 6 is connected to the upper plate 4 on the magnetic circuit 5, and an edge 8 such as a free edge is attached to the peripheral edge of the frame 6 together with a gas get 7. Furthermore, the peripheral edge of the diaphragm 9 is attached to the edge 8 are combined. A voice coil 12 supported at the middle by a damper 11 is coupled to the center of the diaphragm 9 so as to fit correctly into the magnetic gap 10 of the field section of the magnetic circuit 5. A speaker 14 was constituted by a dust cap 13 attached to the upper surface of the central portion of the speaker.
このようなスピーカ１４において、従来のダンパー１１
は、綿布または芳香族ポリアミドなどの基材に熱硬化性
樹脂を含浸させ、２００°Ｃ以」二の高熱で短時間に波
形形状に加熱成形されたものが用いられていた。In such a speaker 14, the conventional damper 11
In this method, a base material such as cotton cloth or aromatic polyamide was impregnated with a thermosetting resin, and the resultant material was heated and molded into a corrugated shape in a short period of time at high heat of 200° C. or higher.
発明が解決しようとする課題
上記従来のスピーカ用ダンパーは、高熱で短時間に成形
プレスするため、ダンパー１１の繊維を損傷させて、繊
維の弾性率が低くなり、第３図の曲線Ａに示すようにダ
ンパー１１のカー変位特性が大振幅時に非直線となると
いう欠点があった。このため、従来のスピーカにおいて
は、低域において高調波歪が生じるという問題があった
。Problems to be Solved by the Invention The conventional speaker damper described above is molded and pressed at high heat for a short time, which damages the fibers of the damper 11 and lowers the elastic modulus of the fibers, as shown by curve A in FIG. As such, there is a drawback that the Kerr displacement characteristic of the damper 11 becomes non-linear when the amplitude is large. For this reason, conventional speakers have a problem in that harmonic distortion occurs in low frequencies.
本発明は上記従来の問題を解決するもので、ダンパーの
カー変位特性のりニアリティを向上することができ、ス
ピーカにおける低域で、非直線性による高調波歪の生じ
ないスピーカ用ダンパーの製造方法を提供することを目
的とするものである。The present invention solves the above conventional problems, and provides a method for manufacturing a damper for a speaker that can improve the linearity of the Kerr displacement characteristic of the damper and that does not cause harmonic distortion due to nonlinearity in the low range of the speaker. The purpose is to provide
課題を解決するための手段
上記課題を解決するために本発明のスピーカ用ダンパー
の製造方法は、綿布または芳香族ポリアミドを基材とし
、フェノール系熱硬化性樹脂とリン酸エステルを含浸さ
せ、１３０℃〜１５０℃の雰囲気中で半硬化乾燥した後
に加熱成形プレスし、所定の形状に打ち抜くものである
。Means for Solving the Problems In order to solve the above problems, the method for manufacturing a speaker damper of the present invention uses cotton cloth or aromatic polyamide as a base material, impregnating it with a phenolic thermosetting resin and a phosphoric acid ester, After semi-curing and drying in an atmosphere of 150°C to 150°C, the material is heated and pressed, and punched into a predetermined shape.
作用
上記構成により、綿布または芳香族ポリアミドを藁材と
し、この基材に、剛性および湿潤強度の向上さらには成
形性の保持などのために熱硬化性樹脂を含浸させ、また
、離型性の向上を図り生産性を高めるために離型剤も含
浸させる。さらに、含浸後、半硬化乾燥させることによ
っＣ・加熱成形プレス時の繊維の損傷が防止され、繊維
の弾性率が低下することなく、高いため、ローリンク強
度および、ダンパーのカー変位１、テ性のリニアリティ
の向上が図られ、スピーカ低域で高調波歪が防止される
。Effect With the above structure, cotton cloth or aromatic polyamide is used as a straw material, and this base material is impregnated with a thermosetting resin to improve rigidity and wet strength, as well as maintain moldability, and to improve mold release properties. It is also impregnated with a mold release agent to improve productivity. Furthermore, by semi-curing and drying after impregnation, damage to the fibers during heat forming and pressing is prevented, and the elastic modulus of the fibers is high without decreasing, resulting in low link strength and Kerr displacement of the damper. This improves the linearity of the sound quality and prevents harmonic distortion in the low frequency range of the speaker.
実施例
以下、本発明の一実施例におけるスピーカ用ダンパーの
Ｍ ３Ｎ方法について説明する。EXAMPLE Hereinafter, an M3N method for a speaker damper according to an example of the present invention will be described.
まず、綿布または芳香族ポリアミドの基材に車量比で約
３％のリン酸エステルを含浸し、約１００℃で乾燥する
９次に、フェノール系熱硬化性樹脂を重量比で約１０％
〜３０％基材に含浸し、約１４０℃の雰囲気中で乾燥さ
せる。これを２００℃以上で加熱成形プレスして第１図
（ａ）（ｂ）に示すダンパー２１を構成した０本発明の
ダンパー２１の力〜変位特性を第３図の曲線Ｂに示す、
従来のダンパー１１のカー変位特性の曲線Ａに比べて本
発明のダンパー２１のカー変位特性の曲線Ｂはリニアリ
ティが向上している。したがって、スピーカにおいて、
特に、低域で、非直線性による高調波歪は防止される。First, a cotton cloth or aromatic polyamide base material is impregnated with about 3% phosphoric acid ester by weight, and dried at about 100°C.9 Next, about 10% by weight phenolic thermosetting resin is impregnated with phosphoric acid ester.
-30% impregnated into the substrate and dried in an atmosphere at about 140°C. The force-displacement characteristics of the damper 21 of the present invention, which was formed by hot molding and pressing at 200° C. or higher to form the damper 21 shown in FIGS. 1(a) and (b), are shown in curve B of FIG. 3.
Compared to the curve A of the Kerr displacement characteristic of the conventional damper 11, the curve B of the Kerr displacement characteristic of the damper 21 of the present invention has improved linearity. Therefore, in the speaker,
Particularly in the low range, harmonic distortion due to nonlinearity is prevented.
発明の効果
以上のように本発明のスピーカ用ダンパーの製造方法に
よれば、ダンパー繊維の弾性率の低下がないため、タン
バーのカー変位特性において、リニアリティに優れ、ロ
ーリング強度も良好で生産性の高い工業的価値の大なる
ものである。Effects of the Invention As described above, according to the method for manufacturing a speaker damper of the present invention, there is no decrease in the elastic modulus of the damper fibers, so the Kerr displacement characteristics of the tambour are excellent in linearity, rolling strength is good, and productivity is improved. It is of great industrial value.
第１図（ａ）（ｂ）はそれぞれ本発明の一実施例のスピ
ーカ用ダンパーの製造方法によるダンパーの正面図およ
び一部断面四面図、第２図は従来のスピーカの断面図、
第３図は従来および本発明の一実施例のスピーカ用ダン
パーの製造方法によるダンパーのカー変位特性図である
。
２１・・・ダンパー1(a) and 1(b) are a front view and a partially sectional four-sided view of a damper produced by a method of manufacturing a speaker damper according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional speaker,
FIG. 3 is a diagram showing Kerr displacement characteristics of a damper according to a method of manufacturing a speaker damper according to a conventional method and an embodiment of the present invention. 21...damper
Claims (1)
ル系熱硬化性樹脂とリン酸エステルを含浸させ、１３０
℃〜１５０℃の雰囲気中で半硬化乾燥した後に加熱成形
プレスし、所定の形状に打ち抜くスピーカ用ダンパーの
製造方法。1. Using cotton cloth or aromatic polyamide as a base material, impregnating it with phenolic thermosetting resin and phosphoric acid ester,
A method for manufacturing a speaker damper, which comprises semi-curing and drying in an atmosphere at a temperature of 150°C to 150°C, followed by hot molding pressing and punching into a predetermined shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21816289A JP2898020B2 (en) | 1989-08-24 | 1989-08-24 | Method of manufacturing speaker damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21816289A JP2898020B2 (en) | 1989-08-24 | 1989-08-24 | Method of manufacturing speaker damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380800A true JPH0380800A (en) | 1991-04-05 |
| JP2898020B2 JP2898020B2 (en) | 1999-05-31 |
Family
ID=16715606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21816289A Expired - Fee Related JP2898020B2 (en) | 1989-08-24 | 1989-08-24 | Method of manufacturing speaker damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2898020B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011146769A (en) * | 2010-01-12 | 2011-07-28 | Panasonic Corp | Method for manufacturing speaker diaphragm, and speaker diaphragm manufactured by the same |
-
1989
- 1989-08-24 JP JP21816289A patent/JP2898020B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011146769A (en) * | 2010-01-12 | 2011-07-28 | Panasonic Corp | Method for manufacturing speaker diaphragm, and speaker diaphragm manufactured by the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2898020B2 (en) | 1999-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |