JPS5894299A - Winding method of coil part for plane loudspeaker, and plane loudspeaker using its coil part - Google Patents

Abstract

PURPOSE:To automatically execute winding, and to remarkably elevate workability of winding, by simultaneously winding a voice coil of necessary number of winding, to each cone part of a winding frame. CONSTITUTION:On a winding frame 11 on which a lot of slenderly projecting cone parts 12 have been formed as one body in parallel, a voice coil electric wire 14 is placed in the almost channel shape. In order to draw both side parts of this electric wire 14 in the direction approaching each other so as to surrounded the outside circumference of each cone part 12, a pair of bobbins are prepared at every electric wire. Subsequently, the start end of the electric wire is connected as one body, and suitable tension is given against drawing of a winding hand. Also, this electric wire 14 is wind-installed to the outside circumference of a winding jig 16 whose external form is almost same as the cone part, and wind-installed electric wires 14 (14a-14d) are pressed and inserted into the outside circumference of the bottom part of each cone part 12 of the winding frame 11, by use of a moving press part.

Description

【発明の詳細な説明】 本発明は平面スピーカ用コイル部の巻線方法およびその
フィル部を用いた平面スピーカに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of winding a coil portion for a flat speaker and a flat speaker using the fill portion.

近年、かまぼこ形に突出した細長いコーン部を平行、並
列に多数個、一体に形成し、各コーン部にボイスコイル
を＊回し、これらボイスコイルを直列状に接続した構成
のコイル部と、各コーン部の背面に収容されるように多
数個の棒状マグネットを平行、並列に配置した構成のヨ
ーク部とを組合せた平面スピーカが開発され、実用化さ
れている。この平面スピーカは超薄型、高出力、重低音
再生・フルレンジ、小型、軽量、長方形、高耐入力、低
歪率等の今迄にないすぐれた性能を発揮するものとして
注目されてし）る。In recent years, a coil section with a structure in which a large number of elongated cones protruding into a semicircular shape are integrally formed in parallel in parallel, a voice coil is wound around each cone section, and these voice coils are connected in series, and each cone has been developed. A flat speaker has been developed and put into practical use in combination with a yoke part having a configuration in which a large number of rod-shaped magnets are arranged in parallel so as to be housed on the back surface of the yoke part. This flat speaker is attracting attention as it exhibits unprecedented performance such as being ultra-thin, high output, deep bass reproduction/full range, compact, lightweight, rectangular, high input resistance, and low distortion.) .

ところで、従来の平面スピーカのコイル部は、第１図に
示すように、巻枠１に形成された各コーン部２の底部外
周にボイスコイル３（点線で示す）をそれぞれ独立して
巻回した後、各コイル間を実線Ｘで示すように接続し、
直列状に接続、している。By the way, as shown in FIG. 1, in the coil section of a conventional flat speaker, a voice coil 3 (indicated by a dotted line) is independently wound around the bottom outer periphery of each cone section 2 formed on a winding frame 1. After that, connect each coil as shown by the solid line X,
Connected in series.

通常、ボイスコイルは一層（１ターン）ではないので、
次の層に対しても、同じ巻線作業を行ない、所要層のボ
イスコイルに対して十述の巻線作業を順次に行なってフ
ィル部を形成している。勿論、層間も直列状に接続し、
２本の引出しリード線がコイル部より導出される。Normally, the voice coil is not a single layer (one turn), so
The same winding operation is performed for the next layer, and the above-mentioned winding operations are sequentially performed for the voice coil of the required layer to form a fill portion. Of course, the layers are also connected in series,
Two lead wires are led out from the coil section.

このように、従来は各コーン部に独立にボイスコイルを
巻回し、各独立のボイスコイルを直列状に接続していた
ため、巻線作業が煩雑で、時間がかかり、作業性が極め
て悪い欠点があった。In this way, in the past, a voice coil was wound independently around each cone part, and each independent voice coil was connected in series, which had the disadvantage that the winding work was complicated and time-consuming, and the workability was extremely poor. there were.

本発明は上記欠点を除去するためになされたもので、巻
枠の各コーン部に所要ターン数のボイスコイルを同時的
に巻回できるようにし、巻線作業性を着るしく向上させ
た平面スビー用コイル部の巻線方法およびそのコイル部
を用いた平面スピーカを提供することである。The present invention has been made in order to eliminate the above-mentioned drawbacks, and it is possible to simultaneously wind the required number of voice coils around each cone portion of the winding frame, thereby improving winding workability. It is an object of the present invention to provide a method for winding a coil portion for use with a wire, and a planar speaker using the coil portion.

以下、本発明の実施例につき図面を参照して詳細に説明
する。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

第２図は本発明の方法により形成された平面スピーカ用
コイル部を示し、図において１１は巻枠１１に一体に形
成された所要個数（図示の例では簡単にするために７個
）のかまぼこ形に突出した細長いコーン部、１３はこれ
らコーン部１２の各底部外層に巻回された所要ターン数
（層数）のボイスコイルを示す。１５Ｆおよび１３８は
ボイスコイル１３の引出しリード線であり、ボイスコイ
ルは直列状に接続されている。FIG. 2 shows a flat speaker coil part formed by the method of the present invention, and in the figure, 11 is a required number of kamaboko (seven in the illustrated example for simplicity) integrally formed on the winding frame 11. The elongated cones 13 that project in shape indicate voice coils having the required number of turns (layers) wound around each bottom outer layer of these cones 12. 15F and 138 are lead wires for the voice coil 13, and the voice coils are connected in series.

まず、かかるコイル部の巻線方法について説明する。初
めに、第２図に示す巻枠１１を＠線機（図示せず）に同
定する。次に、第３図に示すように、所要ｐ−ン数（図
示の例では４ターン）のボイスフィル用意１１１４＆、
１４ｂ、１４ｃ、１４ｄを巻枠１１上に配置する。これ
ら電！１１４　＆。First, a method of winding the coil portion will be explained. First, the winding frame 11 shown in FIG. 2 is identified to a wire machine (not shown). Next, as shown in FIG. 3, the required number of voice fills (4 turns in the illustrated example) are prepared 1114
14b, 14c, and 14d are arranged on the winding frame 11. These electric! 114 &.

１４ｂ・１４ｃ、１４ｄは、第４図に示すように、フ字
状の中央部分１４Ｍが巻枠１１の最上部のコーン部１２
．の少し上に配され、両側部分１４Ｌおよび１４Ｒが巻
枠１１の外縁より若干外方に配されることが好ましい。14b, 14c, and 14d, as shown in FIG.
．． It is preferable that both side portions 14L and 14R be placed slightly above the outer edge of the winding frame 11.

次に、巻線機の巻線手（熊手状のもの）により例えば右
側の電１１１４Ｒを第５図に点線で示すように矢印Ｒで
示す方向へ左側へ引っ張る。この場合、巻線手は右側電
線１４Ｒを各コーン部の間で左側へ引っ張るように配設
されており、勿論４ターンの電線を同時に引っ張る・次
に１今度は別の巻線手により、第６図に点着で示すよう
に、左側の電１！１４Ｌを矢印りで示す方向へ右側へ４
タ一ン同時に引っ張り、各コーン部の外周を取囲んだ状
態に電線を配置する。このように、ボイスフィル用電線
１４は巻枠１１の各コーン部１２を取囲んだ状態に引っ
張られるから、各電１［１４ａ、１４ｂ％　１４ｃ％　
１４ｄの両端部は巻線手で引っ張られたときにある張力
を持って電線を繰り出せる状態になければならない。Next, for example, the right electric wire 1114R is pulled to the left in the direction shown by arrow R as shown by the dotted line in FIG. 5 using the winding hand (rake-like one) of the winding machine. In this case, the winding hand is arranged to pull the right-hand wire 14R to the left between each cone part, and of course pulls four turns of the wire at the same time. As shown by the dots in Figure 6, move the left electric terminal 1!14L to the right in the direction indicated by the arrow 4.
Pull the cone at the same time and place the wire so that it surrounds the outer periphery of each cone. In this way, the voice fill electric wire 14 is pulled to surround each cone portion 12 of the winding frame 11, so each electric wire 1 [14a, 14b% 14c%
Both ends of 14d must be in a state where the wire can be drawn out with a certain tension when the wire is pulled by hand.

このため、本実施例では第７図に示すように電線を巻回
した番テぼ同じ重量（１〜２＆９）の一対のボビン１５
Ｌ、１５Ｂを各ターンの電線ごとに用意し、（４ターン
の場合は８個のボビンを用意する）両ボビン１５Ｌ、１
５Ｂの電線の始端を接続して一体化し、巻線手の引っ張
りに対して適当な張力を与えながら電線を繰出せるよう
に構成した。巻線が支障なく行なえるならば１個のボビ
ンのみでよいし、また他の方法を用いてもよい。For this reason, in this embodiment, as shown in FIG.
Prepare L, 15B for each turn of wire, (prepare 8 bobbins for 4 turns) both bobbins 15L, 1
The starting ends of the 5B wires were connected and integrated, and the wires were constructed so that they could be fed out while applying appropriate tension against the pull of the winding hand. If the winding can be done without any problems, only one bobbin may be used, or other methods may be used.

次に、巻枠１１のコーン部１２とほぼ同じ外形形状を有
する巻線治具を各コーン部１２上に密接させ、巻義手で
引っ張られている電線をこの巻線治具の外周に装着し、
春線手による電線の引っ張りを解除する。この結果、第
８図に示すように４ターンの電１１１１，１４ｂ、１４
０，１４ｄは巻線治具１６の外周に沿って巻回されるこ
とになる。なお、第８図では巻線治具１６とコーン部１
２との間に隙間があるが、これは分り易くするためで、
実際は密接している。従って巻線治具１６の底面は凹面
になっている。次に、ロ■動ブレス部（治具）により電
線を巻線治具１６がらコーン部の底部へ押圧、挿入する
。勿論、４ターンの電線を同時に抑圧、挿入する。次に
、各ターンの電線を直列状に接続する。すなわち、第１
ターンの電線１４ａの終端と第２ターンの電１１１４ｂ
の始端を接続し、第２ターンの電線１４ｂの終端と第６
ターンノ電１１１４ｃの始端を接続し、第３ターンの電
１１１４　ｃの終端と第４ターンの電！＋１４ｄの始端
を接続し、第１ターンの電４１１４ａの始端と第４ター
ンの電１１１４（！の終端をボイスフィルの引出しリー
ド線１３Ｆ、１５８とする。これによって、各電線は直
列状に接続される。この場合、絶縁耐圧の関係から、タ
ーン間の電線の接続部分は、第９図に示すように、少し
づつずらすことが好ましい。次に、加熱してｗｆｉ［を
コーン部底部外周に固定した後、巻枠１１を巻線機から
取出す。Next, a winding jig having approximately the same external shape as the cone part 12 of the winding frame 11 is brought into close contact with each cone part 12, and the electric wire being pulled by the winding prosthesis is attached to the outer periphery of this winding jig. ,
Release the tension on the wire by the spring wire operator. As a result, as shown in FIG.
0 and 14d are wound along the outer periphery of the winding jig 16. In addition, in FIG. 8, the winding jig 16 and the cone part 1
There is a gap between 2 and 2, but this is to make it easier to understand.
In fact, they are very close. Therefore, the bottom surface of the winding jig 16 is a concave surface. Next, the electric wire is pressed and inserted into the bottom of the cone part through the winding jig 16 by the rotating press part (jig). Of course, four turns of wire are suppressed and inserted at the same time. Next, connect the wires of each turn in series. That is, the first
The end of the turn electric wire 14a and the second turn electric wire 1114b
Connect the starting end of the second turn of the electric wire 14b and the sixth turn of the electric wire 14b.
Connect the starting end of the turn terminal 1114c, and connect the terminal end of the third turn terminal 1114c and the fourth turn terminal! +14d is connected, and the starting end of the first turn electric wire 4114a and the fourth turn electric wire 1114 (!) are connected to the voice fill lead wires 13F and 158.Thus, each electric wire is connected in series. In this case, from the standpoint of dielectric strength, it is preferable to shift the connecting parts of the wires between the turns little by little, as shown in Figure 9.Next, heat the WFI to fix it to the outer periphery of the bottom of the cone. After that, the winding frame 11 is taken out from the winding machine.

かくして、第２図に示すフィル部が形成される。In this way, the fill portion shown in FIG. 2 is formed.

巻枠１１は通常、ポリカーボネート材で形成されるので
、加熱によって電線はコーン部に容易に固定することが
できる。第１０図は第２図に示すフィル部の概略ｌＩｒ
−図で、通常の絶縁皮膜電線を使用した場合を示す。ボ
イスフィル用電線として平角アルミ線を使用する場合に
は、アルミ線→絶縁層−アルミ線→絶縁層→アルミ線・
・・・と順次積層巻きすることになる。第１１図にアル
之平角線を使用したときのコイル部の断面図を示す。こ
の図は４層の場合を示すが、例えば８層に巻回する場合
には、コーン関の間隔の問題があるので、第１１図の巻
線に並列に４層の積層巻線を巻回する構成をとることに
なる。Since the winding frame 11 is usually made of polycarbonate material, the electric wire can be easily fixed to the cone portion by heating. Figure 10 is a schematic diagram of the fill section shown in Figure 2.
- The figure shows the case where ordinary insulated wire is used. When using rectangular aluminum wire as voice fill wire, aluminum wire → insulation layer → aluminum wire → insulation layer → aluminum wire・
. . . The layers are sequentially laminated and wound. FIG. 11 shows a cross-sectional view of the coil portion when an aluminum rectangular wire is used. This figure shows the case of 4 layers, but when winding 8 layers, for example, there is a problem with the cone spacing, so 4 layers of laminated winding are wound in parallel to the winding shown in Figure 11. The configuration will be as follows.

なお、上記実施例では巻線手によって電線を左側および
右側に引っ張った後で巻線治具を巻枠上に設定したが、
巻線治具を巻枠上に設定した後、巻線手により電線を両
側に引っ張り、巻線治具の外周に装着するようにしても
よい。In the above embodiment, the winding jig was set on the winding frame after the wire was pulled to the left and right by the winding hand.
After the winding jig is set on the winding frame, the wire may be pulled to both sides by a winding hand and attached to the outer periphery of the winding jig.

第１２図は本発明による平面スピーカに使用されるヨー
ク部の一例を示す斜視図で、図において２１は長方形状
の純鉄の共通極板を示し、この共通極板２１上にはコイ
ル部のコーンＷ６１２のＩｌト同数のフェライト（異方
性）マグネット２２が平行に配置されており、各７エラ
イトマグネツト２２の上部に純鉄の極片２６が取付けら
れている。FIG. 12 is a perspective view showing an example of a yoke part used in a flat speaker according to the present invention. In the figure, 21 indicates a rectangular pure iron common electrode plate, and on this common electrode plate 21 is a coil part. The same number of ferrite (anisotropic) magnets 22 as the number of cones W612 are arranged in parallel, and a pure iron pole piece 26 is attached to the top of each seven ferrite magnets 22.

極片２５およびフェライトマグネット２２はコイル部の
コーン部の内部にそれぞれ収容される寸法に選定されて
おり、またフェライトマグネット２２は共通極板２１側
の磁極と極片２２＠の磁極が隣り合うマグネット同志で
互いに反対磁極となるように磁化されている。このよう
に構成されたヨー文部に第２図のフィル部がかぶせられ
、所定のスピーカフレームに取付けられ、本発明による
平面スピーカが構成される。第１３図は本発明による平
面スピーカの磁気回路を示す。The size of the pole piece 25 and the ferrite magnet 22 is selected to accommodate each inside the cone part of the coil part, and the ferrite magnet 22 is a magnet in which the magnetic pole on the common pole plate 21 side and the magnetic pole of the pole piece 22@ are adjacent to each other. They are magnetized so that they have opposite magnetic poles. The fill portion shown in FIG. 2 is placed over the yaw portion constructed in this manner and attached to a predetermined speaker frame, thereby constructing a flat speaker according to the present invention. FIG. 13 shows a magnetic circuit of a flat speaker according to the present invention.

上述のように、本発明ではボイスフィル用の電線を、何
ターニー（何ｗｊ）であっても、一度にフィル部のコー
ン部底部外周に巻装することができ、しかも各コーン部
間で電線を接続する必要がないから、巻線作業性が大巾
に向上する。また、巻線手によって電線を両側に引っ張
り、巻線治具を介してフィル部の各コーン部に巻装する
ものであるから、巻線の自動化が可能となり、大量生産
ができる。従って、高性能の小型、軽量の平面スピーカ
が安価に製造できるという顕著な利点がある。As described above, in the present invention, the electric wire for voice fill can be wrapped around the bottom outer periphery of the cone part of the fill part at one time, regardless of the number of turns (how many wj), and the electric wire can be wrapped between each cone part. Since there is no need to connect wires, winding work efficiency is greatly improved. Further, since the wire is pulled to both sides by a winding hand and wound around each cone portion of the fill portion via a winding jig, automation of the winding is possible and mass production is possible. Therefore, there is a significant advantage that a high-performance, compact, lightweight planar speaker can be manufactured at low cost.

上記実施例は本発明を例示するためのものであり、従っ
て必要に応じて種々の変形、変更がなし得ることはいう
まてもない。The above-mentioned embodiments are for illustrating the present invention, and therefore, it goes without saying that various modifications and changes can be made as necessary.

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

第１１！ｌは平面スピーカ用コイル部の従来の巻線方法
を説明するための概略平面図、第２図は本発明の方法に
よって製造された平面スピーカ用コイル鶴の一例を示す
概略斜視図、第３図ないし第９図は本発明による平面ス
ピーカ用フィル部の巻線方法の一実施例を説明するため
のもので、第３図はボイスコイル用電線の配置形態を示
す斜視図、第４図はボイスコイル用電線と巻枠との配置
関係を示す概略平１ｗＩ！！！、第５図および第６図は
ボイスコイル用電線を巻線手によって左右両方へ引張っ
た状態を示す概略平面図、第７ｖ！Ｊは電線を繰出すボ
ビンを示す図、第８図はボイスコイル用電線を巻線治具
に装着した状態を示す概略１１ｈｉｏ図、第９図はコー
ン部に巻装したボイスコイル用電線の各層間の接続態様
を示す概略図、第１０図はコイル部の一部分の断面図、
第１１図はボイスコイル用電線としてアルミ平角線を使
用したときのコイル部の一部分の断面図、第１２図は本
発明による平面スピーカのヨーク部の一例を示す概略斜
視図、第１３図は本発明による平面スピーカの磁気回路
図である。 １１：巻枠、１２：コーン部、１６：ボイスフィル、１
４：ボイスフィル用電線、１６：巻線治具、２１：純鉄
の共通極片、２２：フェライトマグネット、２３：純鉄
の極片、 特許出願人　　　電気音響株式会社 オｌａ！１１ 才２ｖｓ ｔ５図 ｔ７ ｔ６図 才８図 ） １ ｔ９図 才１０図　　　　　ｔｌｌし 才１２　ｆｉｌｌ11th! 1 is a schematic plan view for explaining a conventional winding method for a coil portion for a flat speaker; FIG. 2 is a schematic perspective view showing an example of a coil for a flat speaker manufactured by the method of the present invention; FIG. 9 to 9 are for explaining an embodiment of the method of winding a fill portion for a flat speaker according to the present invention, FIG. 3 is a perspective view showing the arrangement of voice coil wires, and FIG. Rough diagram showing the arrangement relationship between the coil wire and the winding frame! ! ! , FIGS. 5 and 6 are schematic plan views showing the state in which the voice coil wire is pulled both left and right by the winding hand, and 7th v! J is a diagram showing the bobbin from which the wire is fed out, FIG. 8 is a schematic diagram showing the state in which the voice coil wire is attached to the winding jig, and FIG. 9 is a diagram showing each of the voice coil wires wound around the cone part. A schematic diagram showing the connection mode between layers, FIG. 10 is a sectional view of a part of the coil part,
FIG. 11 is a cross-sectional view of a portion of the coil section when rectangular aluminum wire is used as the voice coil electric wire, FIG. 12 is a schematic perspective view showing an example of the yoke section of the flat speaker according to the present invention, and FIG. 13 is the main part of the coil section. FIG. 3 is a magnetic circuit diagram of a planar speaker according to the invention. 11: Winding frame, 12: Cone section, 16: Voice fill, 1
4: Voice fill electric wire, 16: Winding jig, 21: Pure iron common pole piece, 22: Ferrite magnet, 23: Pure iron pole piece, Patent applicant Denki Acoustic Co., Ltd. Ola! 11 year old 2 vs t5 figure t7 t6 figure age 8 figure) 1 t9 figure age 10 figure tll and age 12 fill

Claims (2)

【特許請求の範囲】[Claims] （１）多数個の細長く突出したコーン部が平行、並列に
一体に形成された巻枠上にボイスフィル用電線をほぼコ
字状に配置する段階と、該コ字状に配置された電線の両
側部分を、前記各コーン部の外周を取囲むように、互い
に接近する方向に引っ張る段階と、該引っ張られた電線
を前記コーン部とほぼ同じ外形を有する巻線治具の外周
に巻装する段階と、該巻線治具に巻装された電線を前記
巻枠の各コーン部の外周に押圧、挿入する段階とからな
ることを特徴とする平面スピーカ用コイル部の巻線方法
。(1) The step of arranging voice fill electric wires in a substantially U-shape on a winding frame in which a large number of elongated cone portions are integrally formed in parallel; pulling both side parts in a direction toward each other so as to surround the outer periphery of each cone part, and winding the pulled electric wire around the outer periphery of a winding jig having approximately the same external shape as the cone part. 1. A method for winding a coil portion for a flat speaker, comprising the steps of: pressing and inserting the electric wire wound on the winding jig onto the outer periphery of each cone portion of the winding frame. （２）多数個の細長く突出したコーン部が平行、並列に
一体に形成された巻枠と、該巻枠の各コーン部の外周に
巻回されたボイスコイルとからなり、該ボイスコイルが
直列に接続されたコイル部と、強磁性体よりなる共通極
板と、該共通極板上に平行、並列に配置された前記巻枠
のコーン部の数と同数の棒状マグネツＦと、該各マグネ
ットの上部に取付けられた強磁性体よりなる極片とから
なり、前記各マグネットが、前記共通極板側の磁極と前
記極片側の磁極が隣り合うマグネット同志で互いに反対
磁極となるように、磁化されているヨーク部とを具備し
、前記コイル部が、各コーン部内に前配り−り部の極片
およびマグネットが収容されるように、前記ヨーク部に
装着されてなる平面スピーカ。(2) Consists of a winding frame in which a large number of elongated and protruding cone parts are formed in parallel in parallel, and a voice coil wound around the outer periphery of each cone part of the winding frame, and the voice coils are connected in series. a common pole plate made of a ferromagnetic material, a number of rod-shaped magnets F equal to the number of cone parts of the winding frame arranged in parallel on the common pole plate, and each of the magnets. and a pole piece made of a ferromagnetic material attached to the upper part of the magnet, and each of the magnets is magnetized so that the magnetic pole on the side of the common pole plate and the magnetic pole on one side of the pole are opposite magnetic poles between adjacent magnets. and a yoke portion, wherein the coil portion is attached to the yoke portion such that a pole piece and a magnet of a front distribution portion are housed in each cone portion.