更にまた、図１２に示す回転装置１０４を使用して、コイル１１０をそのコイル軸を垂直にしてコイル外面側から巻き解く際、この場合も銅管１０１に作用する張力によりコイルに対してコイルが巻き締まる方向の力が作用する。このため、銅管１０１が相互に擦れて擦り疵又は変形が発生し、これが歩留及び生産性を低下させる要因になっている。
Furthermore, when the coil 110 is unwound from the outer surface side of the coil with its coil axis vertical, using the rotation device 104 shown in FIG. A force acts in the direction of tightening. For this reason, the copper tubes 101 are mutually rubbed to cause rubbing or deformation, which is a factor to reduce the yield and productivity.
また、図１２に示すように、ＬＷＣ１１０をそのコイル軸を垂直にしてアンコイルする場合は、ＬＷＣ１１０を載置するためのターンテーブル１０７が必要になる。このため、図１２に示す回転装置１０４も、装置コストが高いという難点がある。
Further, as shown in FIG. 12, in the case where the LWC 110 is uncoiled with its coil axis vertical, a turntable 107 for mounting the LWC 110 is required. For this reason, the rotating device 104 shown in FIG. 12 also has a drawback that the device cost is high.
【００２０】
【課題を解決するための手段】
本願第１発明に係るレベルワウンドコイルは、コイル軸方向が垂直で且つ巻き始め部位が上側になるように載置され内側から巻き解かれるレベルワウンドコイルにおいて、管を整列巻きして１層目コイルを形成し、その後、この１層目コイルの上に２層目コイルを前記１層目コイルの外面の管間の凹部に嵌め込んで整列巻きし、以後同様にして、２層目コイルの上に３層目コイル、３層目コイルの上に４層目コイルを整列巻きした複数層のコイルからなるレベルワウンドコイルにおいて、奇数層目のコイルの巻き数をｎとすると、偶数層目のコイルの巻き数は（ｎ−１）であり、奇数層目のコイルの巻き方向と偶数層目のコイルの巻き方向とが相互に逆であることを特徴とする。
[0020]
[Means for Solving the Problems]
The level wound coil according to the first invention of the present application is a level wound coil which is placed so that the coil axis direction is vertical and the winding start point is on the upper side and unwound from the inside, and the tube is aligned and wound in the first layer. After that, the second layer coil is fitted on the recess between the tubes on the outer surface of the first layer coil on top of the first layer coil, and is aligned and wound, and so on. In the level wound coil consisting of a plurality of layers of coils in which the fourth layer coil is aligned and wound on the third layer coil, and the number of turns of the odd layer coil is n, the even layer coil The number of turns is (n-1), and the winding direction of the coil in the odd-numbered layer and the winding direction of the coil in the even-numbered layer are opposite to each other.
本願第２発明に係るレベルワウンドコイルは、コイル軸方向が垂直で且つ巻き始め部位が下側になるように載置され内側から巻き解かれるレベルワウンドコイルにおいて、管を整列巻きして１層目コイルを形成し、その後、この１層目コイルの上に２層目コイルを前記１層目コイルの外面の管間の凹部とその両隣に配置して整列巻きし、以後同様にして、２層目コイルの上に３層目コイル、３層目コイルの上に４層目コイルを整列巻きした複数層のコイルからなるレベルワウンドコイルにおいて、奇数層目のコイルの巻き数をｎとすると、偶数層目のコイルの巻き数は（ｎ＋１）であり、奇数層目のコイルの巻き方向と偶数層目のコイルの巻き方向とが相互に逆であることを特徴とする。
The level wound coil according to the second invention of the present invention is a level wound coil which is placed so that the coil axis direction is vertical and the winding start point is on the lower side and unrolled from the inside, and the tube is aligned and wound in the first layer A coil is formed, and then, a second layer coil is placed on the first layer coil and placed next to the recess between the tubes on the outer surface of the first layer coil, and is aligned and wound, and so on. In a level wound coil consisting of a plurality of coils in which a third layer coil is arranged on the third coil and a fourth layer coil is aligned and wound on the third layer coil, the number of turns of the odd layer coil is n. The number of turns of the coil in the layer is (n + 1), and the winding direction of the coil in the odd layer and the winding direction of the coil in the even layer are opposite to each other.
本願第３発明に係るレベルワウンドコイルは、コイル軸方向が垂直になるように載置され内側から巻き解かれるレベルワウンドコイルにおいて、管を整列巻きして１層目コイルを形成し、その後、この１層目コイルの上に２層目コイルをその巻始端が前記１層目コイルの最終巻及びその直前巻の管間の凹部に嵌め込まれるようにして前記１層目コイルの外面の管間の凹部とその外側に配置して整列巻きし、以後同様にして、２層目コイルの上に３層目コイル、３層目コイルの上に４層目コイルを整列巻きした複数層のコイルからなるレベルワウンドコイルにおいて、奇数層目のコイルの巻き数をｎとすると、偶数層目のコイルの巻き数はｎであり、奇数層目のコイルの巻き方向と偶数層目のコイルの巻き方向とが相互に逆であることを特徴とする。
In the level wound coil according to the third invention of the present invention , the tube is aligned and wound to form a first layer coil in the level wound coil which is placed so that the coil axis direction is vertical and unwound from the inside , and then this Between the tubes on the outer surface of the first layer coil, the second layer coil is fitted on the first layer coil with its winding end fitted in the recess between the last winding of the first layer coil and the tube of the immediately preceding winding. The coil is disposed in the recess and the outer side of the coil, aligned and wound, and similarly composed of a multi-layered coil in which the third coil is arranged on the second coil and the fourth coil is aligned and wound on the third coil. In the level wound coil, assuming that the number of turns of the coil of the odd layer is n, the number of turns of the coil of the even layer is n, and the winding direction of the coil of the odd layer and the winding direction of the coil of the even layer are Characterized by being mutually opposite That.
【００３９】
【発明の実施の形態】
以下、本発明の実施例について添付の図面を参照して具体的に説明する。図１は本発明の実施例に係るレベルワウンドコイル（ＬＷＣ）２０の作成方法を示す断面図、図２はこのＬＷＣの上半部を示す模式図である。ボビン２は、円筒状の内筒２ｂと、この内筒２ｂの両端部分に取り付けられた側板２ａとを有する。そして、このボビン２は図１１又は図１２に示す回転装置１０３，１０４の回転軸に装着されている。本実施例においては、先ず、銅管１を内筒２ｂの左端に位置させ、これを巻回始端２１として、ボビン２を回転装置１０３，１０４により回転駆動し、銅管１を内筒２ｂに図１の右方向に巻回して整列巻きする（トラバース巻き）。即ち、銅管１を内筒２ｂに銅管部分に隙間がなく、常に接触しているように整列巻きで巻き付けていく。本実施例においては、１層目のコイルを巻回し終わると、１層目の終端の銅管部分は側板２ａに接触する。従って、内筒２ｂの軸方向の長さは、銅管１の外径の整数倍であり、この１層目のコイルの巻き数をｎ、銅管１の外径をＤとすると、内筒２ｂの長さは、実質的にｎＤとなる。１層目のコイルの巻回が終了すると、２層目は、その始端の銅管部分２２を、１層目のコイルの終端（ｎ回目）の銅管部分とその直前（ｎ−１回目）の銅管部分との間の凹部に位置させて、順次、図１の左方向に整列巻きで巻回していく。２層目のコイルはその左端の終端において、側板２ａとの間に更に１コイルが入るだけの余裕がないため、側板２ａとの間に隙間を残したまま、３層目の巻回に移る。従って、２層目のコイルの巻き数は、１層目のコイルの巻き数ｎより１回少なく、ｎ−１となる。３層目のコイルは、１層目と同じくｎ回、図１の右方向に巻回する。この場合に、３層目も１層目と同様に、その左端及び右端の銅管部分は側板２ａと接触する。４層目は２層目と同様に、始端の銅管部分２３を側板２ａとの間に隙間があるようにして配置し、図１の左方に銅管を巻回していく。
[0039]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the attached drawings. FIG. 1 is a cross-sectional view showing a method of producing a level wound coil (LWC) 20 according to an embodiment of the present invention, and FIG. 2 is a schematic view showing an upper half of the LWC. The bobbin 2 has a cylindrical inner cylinder 2b and side plates 2a attached to both end portions of the inner cylinder 2b. The bobbin 2 is mounted on the rotating shaft of the rotating devices 103 and 104 shown in FIG. 11 or 12 . In the present embodiment, first, the copper tube 1 is positioned at the left end of the inner cylinder 2b, and this is used as the winding start end 21, and the bobbin 2 is rotationally driven by the rotating devices 103 and 104 to make the copper tube 1 into the inner cylinder 2b. Winding in the right direction of FIG. 1 and aligning winding (traverse winding). That is, the copper tube 1 is wound by alignment winding so that there is no gap in the copper tube portion in the inner cylinder 2b and always in contact. In the present embodiment, when the winding of the first layer coil is finished, the copper tube portion at the end of the first layer contacts the side plate 2a. Accordingly, the length in the axial direction of the inner cylinder 2b is an integral multiple of the outer diameter of the copper tube 1, and assuming that the number of turns of the first layer coil is n and the outer diameter of the copper tube 1 is D, the inner cylinder The length of 2b is substantially nD. When the winding of the first layer coil is finished, the second layer is the copper tube portion 22 at the beginning of the coil, the copper tube portion at the end (n th) of the coil of the first layer and the portion immediately before it (n−1 th) , And sequentially wound in the left direction in FIG. At the end of the left end of the second layer coil, there is no room for another coil to enter between the side plate 2a and the second layer coil. Therefore, the process proceeds to the third layer winding while leaving a gap with the side plate 2a. . Therefore, the number of turns of the second layer coil is one less than the number of turns n of the first layer coil, and is n-1. The third layer coil is wound in the right direction of FIG. 1 n times as in the first layer. In this case, in the third layer as well as the first layer, the copper tube portions at the left end and the right end are in contact with the side plate 2a. In the fourth layer, as in the second layer, the copper tube portion 23 at the beginning is disposed with a gap between it and the side plate 2a, and the copper tube is wound on the left side of FIG.