JPS63146597A - Manufacture of voice coil for speaker - Google Patents
Manufacture of voice coil for speakerInfo
- Publication number
- JPS63146597A JPS63146597A JP29304386A JP29304386A JPS63146597A JP S63146597 A JPS63146597 A JP S63146597A JP 29304386 A JP29304386 A JP 29304386A JP 29304386 A JP29304386 A JP 29304386A JP S63146597 A JPS63146597 A JP S63146597A
- Authority
- JP
- Japan
- Prior art keywords
- polyimide
- voice coil
- bobbin
- coated
- polyamide
- 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
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）
本発明は高耐入力のスピーカ用ボイスコイルの製造方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a voice coil for a speaker with high input resistance.
（従来技術およびその問題点）
動電型スピーカのボイスコイルはボビンにコイルを捲回
し、接着剤で接着されているのが一般的である。しかし
、高入力のボイスコイルを得ようとすると問題がある。(Prior art and its problems) The voice coil of an electrodynamic speaker is generally wound around a bobbin and bonded with adhesive. However, there is a problem when trying to obtain a high input voice coil.
ボイスコイルは質量が軽いこと、占有容積が小さいこと
等の条件を満足し、高入力とするためには比較的高い温
度で動作することとなり耐熱性が要求されるとともに、
一般的に耐水性（防水、防湿）も要求される。従来の接
着剤を用いたボイスコイルでは耐熱性、耐水性が低いた
めに接着材が軟化し、ボビンが変形したり、またコイル
が径方向に伸縮し、その結果磁気回路と接触するなどの
問題があった。また、高入力とした場合、温度上昇によ
ってボビンが炭化する問題があった。Voice coils satisfy conditions such as being light in mass and occupying a small volume, and in order to achieve high input, they must operate at relatively high temperatures and must be heat resistant.
Generally, water resistance (waterproof, moisture proof) is also required. Voice coils using conventional adhesives have low heat resistance and water resistance, causing problems such as the adhesive softening and deforming the bobbin, and the coil expanding and contracting in the radial direction, resulting in contact with the magnetic circuit. was there. Further, when a high input is used, there is a problem that the bobbin is carbonized due to a rise in temperature.
（問題点を解決するための手段）
本発明は上記問題点に鑑み提案されたものであって、そ
の目的とするとごろは、耐熱性、耐水性の強いスピーカ
用ボイスコイルを提供することにある。(Means for Solving the Problems) The present invention has been proposed in view of the above problems, and its purpose is to provide a voice coil for a speaker with strong heat resistance and water resistance. .
すなわち、上記目的を達成するために本発明はポリイミ
ド樹脂フィルムを成形し、又はアルミニウム箔を成形し
たボビンの表面にポリアミド酸をコーティングし、該ボ
ビンにポリイミド樹脂を被覆した絶縁線にポリアミド酸
接着剤を塗布して捲回した棲、加熱処理を施すことを特
徴とする特許−力用ボイスコイルの製造方法を要旨とす
るものである。That is, in order to achieve the above object, the present invention coats polyamic acid on the surface of a bobbin formed by molding a polyimide resin film or molded aluminum foil, and applies a polyamic acid adhesive to an insulated wire coated with polyimide resin on the bobbin. The gist of this patent is a method for manufacturing a voice coil for power use, which is characterized by applying a coating, winding the coil, and subjecting it to heat treatment.
（作用）
ボビンのポリイミド処理及びワイヤをポリイミド樹脂で
固着してコイルを形成することにより、耐熱性、耐水性
が強く高耐入力のスピーカ用ボイスコイルが得られる。(Function) By polyimide-treating the bobbin and fixing the wire with polyimide resin to form a coil, a voice coil for a speaker with strong heat resistance, water resistance, and high input resistance can be obtained.
（実施例）
ボビンにはポリイミドフィルムを成形するか又はアルミ
ニウム箔を成形したボビンにポリアミド酸をコーティン
グする。(Example) A polyimide film is formed on a bobbin, or a bobbin formed from aluminum foil is coated with polyamic acid.
次に、絶縁■としてポリイミド樹脂で被覆したＰＩＷ（
ポリイミドワイヤ）を用い、ＰＩＷにポリアミド酸溶液
を塗布し、ボビンに捲回する。更に加熱して、ボイスコ
イルを得る。Next, PIW coated with polyimide resin (
Apply a polyamic acid solution to PIW and wind it around a bobbin. Further heating produces a voice coil.
この加熱処理において、ポリイミド酸は次式にポリアミ
ド酸 ポリイミド
上記実施例のボイスコイルは約４００℃の耐熱性が得ら
れた。In this heat treatment, the polyimide acid was converted to polyamic acid according to the following formula.
（発明の効果）
以上説明したように本発明によればポリイミド樹脂フィ
ルムを成形し、又はアルミニウム箔を成形したボビンの
表面にポリアミド酸をコーティングし、該ボビンにポリ
イミド樹脂を被覆した絶縁線にポリアミド酸接着剤を塗
布して捲回した後、加熱処理を施すことにより耐熱性、
耐水性に優れたスピーカ用ボイスコイルが得られ、高耐
入力ポイスコイルとして利用効果は大である。(Effects of the Invention) As explained above, according to the present invention, polyamide acid is coated on the surface of a bobbin formed by molding a polyimide resin film or aluminum foil, and polyamide is applied to an insulated wire coated with polyimide resin on the bobbin. After applying acid adhesive and winding, heat treatment is applied to improve heat resistance.
A speaker voice coil with excellent water resistance can be obtained, and its use as a highly input-resistant voice coil is significant.
特許出願人 フォスター電機株式会社 はか１−名Patent applicant Foster Electric Co., Ltd. 1 name
Claims (1)
を成形したボビンの表面にポリアミド酸をコーティング
し、該ボビンにポリイミド樹脂を被覆した絶縁線にポリ
アミド酸接着剤を塗布して捲回した後、加熱処理を施す
ことを特徴とするスピーカ用ボイスコイルの製造方法。The surface of a bobbin made of polyimide resin film or aluminum foil is coated with polyamic acid, and after applying polyamic acid adhesive to the insulated wire covered with polyimide resin and winding it, heat treatment is performed. A method of manufacturing a voice coil for a speaker, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29304386A JPS63146597A (en) | 1986-12-09 | 1986-12-09 | Manufacture of voice coil for speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29304386A JPS63146597A (en) | 1986-12-09 | 1986-12-09 | Manufacture of voice coil for speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63146597A true JPS63146597A (en) | 1988-06-18 |
Family
ID=17789745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29304386A Pending JPS63146597A (en) | 1986-12-09 | 1986-12-09 | Manufacture of voice coil for speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63146597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7729503B2 (en) | 2005-07-28 | 2010-06-01 | Acoustic Design, Inc. | Armored voice coil assembly for use in high power loudspeaker applications |
-
1986
- 1986-12-09 JP JP29304386A patent/JPS63146597A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7729503B2 (en) | 2005-07-28 | 2010-06-01 | Acoustic Design, Inc. | Armored voice coil assembly for use in high power loudspeaker applications |
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