JPS5829671Y2 - Voice coil for speaker - Google Patents

Description

【考案の詳細な説明】 本考案はスピーカー用ボイスコイルの改良に関する。[Detailed explanation of the idea] The present invention relates to improvements in voice coils for speakers.

従来、スピーカーの製造を容易にすることを目的として
、ボイスコイルのリード部に予め錦糸線を半田付けして
取付けた構造のものがある。Conventionally, in order to facilitate the manufacture of speakers, there is a structure in which a tinsel wire is soldered and attached to the lead portion of a voice coil in advance.

そして、このようなボイスコイルの製造方法は、特公昭
４９−３１６４６号公報において公知である。A method for manufacturing such a voice coil is known from Japanese Patent Publication No. 49-31646.

即ち、第１図乃至第４図において説明すると、コイルボ
ビン１にボイスコイル２を巻回し、このボイスコイル２
の巻始め０巻終りの両端リード部３．４を一方向に引出
しく第１図）、この両端リード部３，４に中間部と両端
部に半田５を溶着した１本の錦糸線６を載置する（第２
図）。That is, to explain with reference to FIGS. 1 to 4, a voice coil 2 is wound around a coil bobbin 1, and the voice coil 2 is wound around a coil bobbin 1.
Pull out the lead parts 3 and 4 at both ends at the beginning and end of winding in one direction (Fig. 1), and attach one piece of tinsel wire 6 to the lead parts 3 and 4 at both ends with solder 5 welded to the intermediate part and both ends. Place (second
figure).

この錦糸線６の中間部の半田溶着部５は上記両端リード
部３，４にまたがって配置される。The solder welded portion 5 at the middle portion of the tinsel wire 6 is disposed astride the lead portions 3 and 4 at both ends.

次いで、第３図に示すように、両端リード部３，４を綿
糸７ｉ！６を挾み込むように折曲げ、この折曲部と綿糸
ｆｆ５６の中間部の半田溶着部５を３００〜３３０’Ｃ
に熱せられた半田ごてで加熱加圧して半田付けし、その
後、両端リード部３，４間の錦糸線６部をカッターで切
断する。Next, as shown in FIG. 3, the lead portions 3 and 4 at both ends are tied with cotton thread 7i! 6, and solder welded part 5 between this bent part and the cotton thread ff56 at 300 to 330'C.
Soldering is carried out by applying heat and pressure using a soldering iron heated to 100 mL, and then the 6 portions of the tinsel wire between the lead portions 3 and 4 at both ends are cut with a cutter.

そして、この接続部７に接着剤を塗布し、乾燥後、両端
リード部３，４の不要部を切断して、第４図に示すよう
な錦糸線６を備えたボイスコイルを完成する。Then, an adhesive is applied to the connecting portion 7, and after drying, unnecessary portions of the lead portions 3 and 4 at both ends are cut off, thereby completing a voice coil equipped with a tinsel wire 6 as shown in FIG. 4.

以上の製造方法は、両端リード部３，４と錦糸線６を半
田付けした後、不要な錦糸線６部を切断して取除くため
、この錦糸線６の切断個所にコイルボビン１に２個の切
れ目８，８ができ、この部分がコイルボビン１の内方へ
突出し、また、錦糸線６の切断によってコイルボビン１
に大キな外力が加わるため、変形しゃすい。In the above manufacturing method, after soldering the tinsel wire 6 to the lead parts 3 and 4 at both ends, in order to cut and remove the unnecessary portion of the tinsel wire 6, two pieces of tinsel wire are attached to the coil bobbin 1 at the cut point of the tinsel wire 6. Cuts 8, 8 are formed, and these parts protrude inward of the coil bobbin 1, and the coil bobbin 1 is cut by cutting the tinsel wire 6.
Because a large external force is applied to it, it deforms.

捷た、錦糸線６の切断によって、両端リード部３，４と
錦糸線６の接続部７が外方へ（コイルボビン１表面の接
線方向へ）広がったり、コイルボビン１表面から浮き上
カッて、後処理が困難になる。When the tinsel wire 6 is twisted and cut, the connecting portion 7 between the lead portions 3 and 4 at both ends and the tinsel wire 6 may spread outward (in the tangential direction of the surface of the coil bobbin 1) or be lifted up from the surface of the coil bobbin 1 and cut. Processing becomes difficult.

さらに、コイルボビン１の錦糸線６の接続部７部分は半
田付けによって剛性が増大するが、反面、錦糸線６の切
断個所は切れ目８，８によって弱体化し、そのために錦
糸線６を音声信号の入力端子に接続すべく折曲げ整形す
ると、コイルボビン１の切れ目８部分が内方へ突出して
変形する。Further, although the rigidity of the connecting portion 7 of the tinsel wire 6 of the coil bobbin 1 is increased by soldering, on the other hand, the cut portion of the tinsel wire 6 is weakened by the cuts 8, 8, and therefore the tinsel wire 6 is used for inputting audio signals. When the coil bobbin 1 is bent and shaped for connection to a terminal, the cut 8 portion of the coil bobbin 1 protrudes inward and is deformed.

このような種々の変形によって、スピーカー組立時、ボ
イスコイル治具やコーン紙の挿入作業が困難になり、作
業性が悪く、また、磁気空隙面との接触（ギャップズレ
）の原因にもなる。These various deformations make it difficult to insert the voice coil jig and paper cone when assembling the speaker, resulting in poor workability and also causing contact with the magnetic gap surface (gap displacement).

本考案はこのような従来欠点を改良したもので、以下本
考案の実施例をその製造方法に沿って説明する。The present invention is an improvement on such conventional drawbacks, and embodiments of the present invention will be described below along with its manufacturing method.

第８図に示すように、２本の錦糸線６，６の両端部に半
田５ａ 、５ｂをそれぞれ溶着し、この錦糸線６，６の
一方の半田溶着部５ａ、５ａを長さ約８ｒＩｒ！ｎのポ
リエチレン樹脂等の熱溶融性樹脂からなるチューブ９の
両端からそれぞれ挿入し、上記半田溶着部５ａ 、５ａ
を約１ｒＩｒｍの間隔を隔てて対向させた後、このチュ
ーブ９を熱風、熱板等適宜の方法により加熱して熱溶融
せしめるが、カシメて圧着せしめて、錦糸線６，６を半
田溶着部５ａ。As shown in FIG. 8, solder 5a, 5b is welded to both ends of the two tinsel wires 6, 6, respectively, and the solder welded portions 5a, 5a of one of the tinsel wires 6, 6 have a length of about 8 rIr! The tubes 9 made of a heat-melting resin such as polyethylene resin are inserted from both ends of the solder welded portions 5a, 5a.
After facing each other with an interval of about 1 rIrm, the tube 9 is heated by an appropriate method such as hot air or a hot plate to melt it, and is crimped and crimped to connect the tinsel wires 6, 6 to the solder welded portion 5a. .

５ａ部分において連結する。Connect at part 5a.

即ち、２本の錦糸線６．６の半田溶着部５ａ 、５ａは
所定の間隔を隔てて対向し、電気的に導通していない状
態で連結される。That is, the solder welded portions 5a, 5a of the two tinsel wires 6.6 are opposed to each other with a predetermined distance therebetween, and are connected in a state where they are not electrically conductive.

この２本の錦糸線６，６をボイスコイル２の両端リード
部３，４にまたがって載置する（第５図）。These two tinsel wires 6, 6 are placed across the lead portions 3, 4 at both ends of the voice coil 2 (FIG. 5).

次いで、第６図に示すように、両端リード部３，４を錦
糸線６，６を挾み込むように引出し方向と逆方向に折曲
げ、この折曲部と錦糸線６，６の半田溶着部５ａ、５ａ
を半田ごてで加熱加圧して半田付けすると同時に、チュ
ーブ９を溶融させて、コイルボビン１と半田溶着部５ａ
。Next, as shown in FIG. 6, the lead parts 3 and 4 at both ends are bent in the direction opposite to the drawing direction so as to sandwich the tinsel wires 6 and 6, and the bent parts and the tinsel wires 6 and 6 are soldered and welded. Parts 5a, 5a
At the same time, the tube 9 is melted and the coil bobbin 1 and the solder welded part 5a are soldered by heating and pressurizing them with a soldering iron.
.

５ａを接着する。Glue 5a.

そして、両端リード部３，４と錦糸線６，６の接続部７
，７に接着剤を塗布し、乾燥後、両端リード部３，４の
不要部を切断して、第７図に示すような錦糸線６を備え
たボイスコイルを完成する。Then, a connecting portion 7 between the lead portions 3 and 4 at both ends and the tinsel wires 6 and 6 is provided.
, 7 are coated with adhesive, and after drying, unnecessary parts of the lead portions 3 and 4 at both ends are cut off to complete a voice coil equipped with tinsel wire 6 as shown in FIG.

以上のようにして製造されたボイスコイルは、２本の錦
糸線６，６を予め合成樹脂チューブ９によって連結し、
この２本の錦糸線６，６の半田溶着部５ａ、５ａをボイ
スコイル２の両端リード部３．４に載置して半田付けす
るようにしたので、従来方法における錦糸線の切断工程
が不要であり、製造工程が簡略化される。The voice coil manufactured as described above has two tinsel wires 6, 6 connected in advance with a synthetic resin tube 9,
Since the solder welded portions 5a, 5a of these two tinsel wires 6, 6 are placed on the lead portions 3.4 at both ends of the voice coil 2 and soldered, the tinsel wire cutting step in the conventional method is unnecessary. This simplifies the manufacturing process.

また、錦糸線６の切断工程がなく、コイルボビン１に切
れ目ができないために、コイルボビン１の変形やコイル
ボビン１の切れ目部分の切れ目による内方への変形がな
い。Further, since there is no cutting process for the tinsel wire 6 and no cuts are made in the coil bobbin 1, there is no deformation of the coil bobbin 1 or inward deformation due to cuts at the cut portions of the coil bobbin 1.

さらに、錦糸線６の接続部７が切れ目によって弱体化す
ることがないので、錦糸線６を折曲げ整形しても、コイ
ルボビンが変形することがなく、スピーカー組立時、ボ
イスコイル治具やコーン紙の挿入作業も著しく容易で、
生産性が向上し、また、磁気空隙面との接触（ギャップ
ズレ）もない。Furthermore, since the connection part 7 of the tinsel wire 6 will not be weakened by cuts, the coil bobbin will not be deformed even if the tinsel wire 6 is bent and shaped. It is also extremely easy to insert the
Productivity is improved, and there is no contact (gap shift) with the magnetic gap surface.

さらにまた、錦糸線６の接続部７が外方へ広がったり、
コイルボビン１表面から浮き上がることがないので、後
処理が著しく容易になる等の利点を有する。Furthermore, the connection part 7 of the tinsel wire 6 may spread outward,
Since it does not rise from the surface of the coil bobbin 1, it has the advantage that post-processing becomes extremely easy.

また、２本の錦糸線６，６′を合成樹脂チューブ９によ
って連結したので、即ち、錦糸線６，６の半田溶着部５
ａ 、５ａを合成樹脂チューブ９に挿入して連結す不の
で、連結作業が簡略、かつ容易であり、また、接着剤や
樹脂によって固化して連結する構造と異なり品質が均一
、かつ安定しており、更に量産にも適する利点を有する
。In addition, since the two tinsel wires 6, 6' are connected by the synthetic resin tube 9, the solder welded portions 5 of the tinsel wires 6, 6
Since the parts a and 5a are inserted into the synthetic resin tube 9 and connected, the connection work is simple and easy, and the quality is uniform and stable, unlike structures in which the parts are solidified and connected using adhesive or resin. Furthermore, it has the advantage of being suitable for mass production.

以上のように、本考案は、合成樹脂チューブ９によって
連結した錦糸線６，６の半田溶着部５ａ。As described above, the present invention provides a solder welded portion 5a of tinsel wires 6, 6 connected by a synthetic resin tube 9.

５ａをボイスコイル２の両端リード部３，４に載置して
、半田付けして、この両端リード部３，４と錦糸線６，
６を接続するようにしたので、製造工程が著しく簡略化
され、また、製造工程においても作業性がよく、自動化
も可能となって量産化に適したものとなり、従って、コ
ストの点でも有利となり、品質の向上とともに工業的価
値の犬なるものである。5a is placed on the lead parts 3 and 4 at both ends of the voice coil 2 and soldered, and the lead parts 3 and 4 are connected to the tinsel wire 6,
6 is connected, the manufacturing process is significantly simplified, and the manufacturing process is also easy to work with and can be automated, making it suitable for mass production. Therefore, it is also advantageous in terms of cost. It is a dog of industrial value as well as quality improvement.

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

第１図乃至第４図は従来のボイスコイルの製造方法を示
す図、第５図乃至第１図は本考案のボイスコイルの製造
方法を示す図、第８図は同、予備加工を施した錦糸線の
構造を示す図である。 ５ａは半田溶着部、６は錦糸線、９は合成樹脂チューブ
、１はコイルボビン、２はボイスコイル、３．４は両端
リード部である。Figures 1 to 4 are diagrams showing a conventional voice coil manufacturing method, Figures 5 to 1 are diagrams showing a voice coil manufacturing method of the present invention, and Figure 8 is a diagram showing a method for manufacturing a voice coil according to the present invention. It is a figure showing the structure of tinsel wire. 5a is a solder welded part, 6 is a tinsel wire, 9 is a synthetic resin tube, 1 is a coil bobbin, 2 is a voice coil, and 3.4 is a lead portion at both ends.

Claims (1)

【実用新案登録請求の範囲】 両端に半田溶着部５ａ、５ｂをそれぞれ形成した２本の
錦糸線６，６を当該錦糸線６，６の一方の半田溶着部５
ａ 、５ａを合成樹脂チューブ９の両端からそれぞれ挿
入し、上記半田溶着部５ａ。 ５ａを所定の間隔を隔てて対向させて連結し、当該連結
した錦糸線６，６の半田溶着部５ａ、５ａヲコイルボビ
ン１に巻回したボイスコイル２の両端リード部３，４に
載置し、上記半田溶着部５ａ。 ５ａを加熱して、上記錦糸線６，６とボイスコイル２の
両端リード部３，４とを接続したことを特徴とするスピ
ーカー用ボイスコイル。[Scope of Claim for Utility Model Registration] Two tinsel wires 6, 6 having solder welds 5a, 5b formed at both ends, respectively, with one solder weld 5 of the tinsel wires 6, 6.
A and 5a are inserted from both ends of the synthetic resin tube 9, respectively, to form the solder welded portion 5a. 5a facing each other at a predetermined interval, and the solder welded portions 5a, 5a of the connected tinsel wires 6, 6 are placed on both end lead portions 3, 4 of the voice coil 2 wound around the coil bobbin 1. , the solder welded portion 5a. A voice coil for a speaker, characterized in that the tinsel wires 6, 6 and the lead portions 3, 4 at both ends of the voice coil 2 are connected by heating the wire 5a.