JPH02147996U

JPH02147996U -

Info

Publication number: JPH02147996U
Application number: JP5700089U
Authority: JP
Priority date: 1989-05-19
Filing date: 1989-05-19
Publication date: 1990-12-17

Description

[Brief explanation of drawings]

第１図乃至第５図は本考案に係るスピーカ用ボ
イスコイルの実施例を示し、第１図はボイスコイ
ルの斜視図、第２図は断面図、第３図乃至第５図
は他の構成例を示す断面図である。第６図は従来
の「丸線」使用によるボイスコイルの斜視図、第
７図は要部の拡大断面図、第８図は該ボイスコイ
ルを使用したスピーカの局部断面図、第９図は従
来の「平角線材」使用のボイスコイルの斜視図と
局部拡大断面図、第１０図Ａは従来の「平角線材
」使用のボイスコイルと磁気ギヤツプとの関係を
示す要部の断面図、第１０図Ｂは同上平面図、第
１１図は「平角線材」の拡大断面図である。１：コイル部、２：ボイスコイルボビン、Ｈ１
：平角線材、ｈ１Ａ，ｈ１Ｂ：端末部、ｈ１ａ：
コイル巻き始め部、ｈ１ｂ：コイル巻き終り部、
ｈ１１：１層目、ｈ１２：２層目、２１：ボビン
上端部、２２：ボビン下端部、２４：補強紙、Ａ
辺：平角線材断面の長い辺、Ｂ辺：平角線材断面
の短い辺、ｔ：コイル厚さ。 1 to 5 show embodiments of the speaker voice coil according to the present invention, FIG. 1 is a perspective view of the voice coil, FIG. 2 is a sectional view, and FIG. 3 to 5 are other configurations. It is a sectional view showing an example. Fig. 6 is a perspective view of a conventional voice coil using a round wire, Fig. 7 is an enlarged sectional view of the main part, Fig. 8 is a local sectional view of a speaker using the voice coil, and Fig. 9 is a conventional Fig. 10A is a sectional view of the main part showing the relationship between the conventional voice coil using a rectangular wire and a magnetic gap; Fig. 10 B is a plan view of the same as above, and FIG. 11 is an enlarged sectional view of the "rectangular wire". 1: Coil part, 2: Voice coil bobbin, H1
:Flat wire rod, h1A, h1B: Terminal part, h1a:
Coil winding start part, h1b: Coil winding end part,
h11: 1st layer, h12: 2nd layer, 21: Upper end of bobbin, 22: Lower end of bobbin, 24: Reinforcement paper, A
Side: long side of the cross section of the rectangular wire, B side: short side of the cross section of the rectangular wire, t: coil thickness.

Claims

[Claims for Utility Model Registration] 1. In a voice coil for a speaker made by winding a rectangular wire around a voice coil bobbin, a flat-wound one in which the longer side of the two sides of the cross section of the rectangular wire is wound parallel to the voice coil bobbin. layer and a vertically wound layer in which the longer side of the cross section of the flat wire rod is wound perpendicular to the voice coil bobbin, or the longer side of the cross section of the flat wire rod is wound with the long side of the cross section of the flat wire rod perpendicular to the voice coil bobbin. A voice coil for a speaker, characterized in that it is composed of a composite layer including a diagonally wound layer wound at an angle of . 2. The voice coil for a speaker according to claim 1, wherein the first layer is a vertically wound layer and the second layer is a flatly wound layer. 3. The voice coil for a speaker according to claim 1, wherein the first layer is a diagonally wound layer and the second layer is a flat layer. 4. The speaker voice coil according to claim 1, wherein the first layer is a flat-wound layer, and the second layer is a vertically-wound layer or a diagonally-wound layer.