JP2006229089A - Method for forming coil structure, coil structure formed thereby, electrical machine having coil structure, antenna, and electronic clock - Google Patents

Method for forming coil structure, coil structure formed thereby, electrical machine having coil structure, antenna, and electronic clock Download PDF

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JP2006229089A
JP2006229089A JP2005043297A JP2005043297A JP2006229089A JP 2006229089 A JP2006229089 A JP 2006229089A JP 2005043297 A JP2005043297 A JP 2005043297A JP 2005043297 A JP2005043297 A JP 2005043297A JP 2006229089 A JP2006229089 A JP 2006229089A
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winding
coil structure
coil
core
wires
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Katsuyoshi Takizawa
勝由 滝澤
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Seiko Instruments Inc
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Seiko Instruments Inc
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  • Manufacture Of Motors, Generators (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for forming a coil structure which method enables coiling of extremely thin conductors many times in a short time, the coil structure formed by the method, and an electrical machine, an antenna, and an electronic clock each provided with the coil structure. <P>SOLUTION: According to the method for forming the coil structure 3 for an electrical machine (motor, power generator, etc.), antenna, etc., a plurality of conductor wires 20, 30, which are put together, are coiled around a wound core 10 simultaneously to form coils 27, 37. The ends 25, 32 of the conductor wires 20, 30 are connected to each other electrically in series to make the coils 27, 37 of the conductor wires 20, 30 into a single coil as a whole. The connection of the ends 25, 32 of the conductor wires 20, 30 is carried out on a board 40 separated from the outer periphery of the columnar wound core 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、コイルの形成方法、該方法で形成されたコイル、並びに該コイルを備えた電気機械、アンテナ及び電子時計に関する。   The present invention relates to a method for forming a coil, a coil formed by the method, an electric machine including the coil, an antenna, and an electronic timepiece.

巻芯（コア）に絶縁被覆導線を巻回してなるコイルを備えたコイル構造体は周知である。従来のコイル構造体では、通常一本の絶縁被覆導線を多数回巻回することによりコイルが形成される。   A coil structure including a coil formed by winding an insulating coated conductor around a winding core (core) is well known. In a conventional coil structure, a coil is usually formed by winding a single insulating coated conductor many times.

コイルの巻線は、多数回巻回されることから、形成に時間を要する。コイル構造体を小型化すると共にその性能を高めようとすると、導線を細くして巻数を多くする必要がある。例えば、腕時計用のモータのステータコイルないしコイルブロックの場合、直径が２０μｍ程度の線が５，０００回〜６，０００回程度巻回される。当然ながら、巻数の増大に伴い巻回に要する時間が長くなる。巻回時間を短くするためには、巻回速度を高くする必要がある。巻回速度を高める場合、加速や減速に伴い巻線にかかる張力が大きくなるのを避け難く、細い導線が切れる虞れがある。その結果、コイルの形成に要する時間の短縮には限度がある。   Since the winding of the coil is wound many times, it takes time to form. In order to reduce the size of the coil structure and improve its performance, it is necessary to make the conductive wire thinner and increase the number of turns. For example, in the case of a stator coil or a coil block of a wristwatch motor, a wire having a diameter of about 20 μm is wound about 5,000 to 6,000 times. Of course, as the number of turns increases, the time required for winding becomes longer. In order to shorten the winding time, it is necessary to increase the winding speed. When the winding speed is increased, it is difficult to avoid an increase in the tension applied to the winding with acceleration and deceleration, and there is a possibility that a thin conducting wire may be broken. As a result, there is a limit to shortening the time required for forming the coil.

なお、高周波特性や耐圧上の理由で、一本の太いワイヤの代わりに一まとめにした複数本のより細い（但し腕時計用モータのワイヤよりはるかに太い）ワイヤを巻回してコイルを形成することは、知られている（例えば、特許文献１）。また、帯状に配列した複数本のワイヤを巻芯のまわりに捩れなく巻回してコイルを形成するために、ワイヤ供給ノズルに対して巻芯を軸線のまわりで回転させたり（例えば、特許文献１や特許文献２）、巻芯に対してワイヤ供給ノズルを備えたフライヤを軸線のまわりで回転させたりすること（例えば、特許文献３）自体は、知られている。
特開平７−１２２４５２号公報 特開２０００−１３４８７６号公報 特開平１１−９８７７９号公報 In addition, for reasons of high-frequency characteristics and pressure resistance, a coil is formed by winding a plurality of thinner wires (but much thicker than the wire of a wristwatch motor) together instead of a single thick wire. Is known (for example, Patent Document 1). In addition, in order to form a coil by winding a plurality of wires arranged in a strip shape around a winding core without twisting, the winding core is rotated around an axis with respect to a wire supply nozzle (for example, Patent Document 1). And Patent Document 2) and rotating a flyer having a wire supply nozzle with respect to a winding core around an axis (for example, Patent Document 3) itself is known.
Japanese Patent Application Laid-Open No. 7-122452 Japanese Patent Application Laid-Open No. 2000-134876 JP-A-11-98779

本発明は、前記諸点に鑑みなされたものであり、その目的とするところは、極めて細い導線を短時間のうちに多数回巻回し得るコイル構造体の形成方法、該方法で形成されたコイル構造体、並びに該コイル構造体を備えた電気機械、アンテナ及び電子時計を提供することにある。   The present invention has been made in view of the above-mentioned points, and an object of the present invention is to form a coil structure capable of winding a very thin conducting wire many times in a short time, and a coil structure formed by the method. And an electric machine, an antenna, and an electronic timepiece including the coil structure.

本発明によるコイル構造体の形成方法は、前記目的を達成すべく、一まとめにした複数本の絶縁被覆導体細線を巻芯に同時に巻回して巻線を形成し、前記複数本の導体細線の端部を相互に電気的に直列に接続して該複数本の導体細線の巻回部を全体として一つのコイルにする。   In order to achieve the above object, the coil structure forming method according to the present invention forms a winding by simultaneously winding a plurality of insulating coated conductor wires together around a winding core, and forming the windings of the plurality of conductor wires. The ends are electrically connected to each other in series, and the winding portions of the plurality of thin conductor wires are combined into one coil as a whole.

本発明のコイル構造体の形成方法では、一まとめにした複数本の絶縁被覆導体細線を同時に巻回するので、極めて細い絶縁被覆導体線を高速に巻回してコイルを形成する場合でも、各絶縁被覆導体細線にかかる張力が同時に巻回される細線の本数分だけ小さくなるから、張力によって導線が切れる恐れが低減され得る。また、本数分だけ一本の導体細線の長さが短くて済むから、巻回時間が本数分だけ低減され得る。仮に、各導体細線にかかる張力が同程度になるように高速巻回するとすると、大まかには、同時に巻回される導体細線の本数分（すなわち、（本数）１／２倍）だけ巻回速度が高められ得、巻回時間が本数分（すなわち、１／（本数）３／２倍に）短縮され得る。 In the method for forming a coil structure according to the present invention, since a plurality of insulated thin conductor wires are wound together at the same time, even when an extremely thin insulated conductor wire is wound at a high speed to form a coil, each insulation Since the tension applied to the coated conductor thin wire is reduced by the number of the thin wires wound at the same time, the possibility that the conductive wire is broken due to the tension can be reduced. Further, since the length of one conductor fine wire can be shortened by the number of wires, the winding time can be reduced by the number of wires. If high-speed winding is performed so that the tension applied to each conductor wire is approximately the same, the winding speed is roughly equal to the number of conductor wires wound at the same time (that is, (number) ½ times). And the winding time can be shortened by the number of wires (that is, 1 / (number) 3/2 times).

原理的には、同時に巻回される導体細線の本数を多くすれば、それだけ巻回時間が短縮され得るけれども、本数が多くなると、巻線をほぼ一様に巻回することが難しくなるので、典型的には、２本の導体細線が同時に巻回される。但し、同時に巻回される導体細線の数は、３〜４本程度でも、より多くてもよい。   In principle, if the number of thin conductor wires wound at the same time is increased, the winding time can be shortened accordingly. However, if the number is increased, it becomes difficult to wind the winding almost uniformly. Typically, two thin conductor wires are wound at the same time. However, the number of fine conductor wires wound at the same time may be about 3 to 4 or more.

なお、ここで、導体細線について、「一まとめ」とは、典型的には、帯状に配列した状態をいうけれども、巻線の巻回部の密度が大きく低下するのが避け得る状態で同時に纏めて巻回され得る限り、厳密に帯状に配列されていなくてもよい。また、一まとめの絶縁被覆導体細線は、典型的には、単に、隣接並置されるけれども、所望ならば、巻回後硬化するような液状物で濡らされていてもよい。   Here, with regard to the conductor thin wires, “collective” typically means a state in which the conductors are arranged in a strip shape, but at the same time in a state in which the density of the winding portion of the winding can be avoided from greatly decreasing. As long as it can be wound around, it does not have to be strictly arranged in a strip shape. Also, a group of insulated coated conductor wires are typically simply juxtaposed, but if desired, may be wetted with a liquid that cures after winding.

巻芯は、典型的には、磁気コアとなる磁芯からなるけれども、所望ならば、磁芯の外周を蔽うボビンであってもよい。なお、巻芯には、典型的には、巻線を保持すべく巻回領域の両端を規定する巻枠が取付けられている。但し、所望ならば、巻枠はなくてもよい。   The winding core is typically composed of a magnetic core to be a magnetic core, but may be a bobbin covering the outer periphery of the magnetic core if desired. Note that a winding frame that defines both ends of a winding region is typically attached to the winding core to hold the winding. However, if desired, the reel may be omitted.

本発明によるコイル構造体の形成方法では、前記複数本の導体細線の端部を相互に電気的に直列に接続して該複数本の導体細線の巻回部を全体として一つのコイルにするので、実質的に、コイルの本数分だけの倍数の長さのコイルが、断線の恐れを最低限にして、高速に短時間で形成され得る。   In the method for forming a coil structure according to the present invention, the ends of the plurality of thin conductor wires are electrically connected to each other in series, and the winding portions of the plurality of thin conductor wires are combined into one coil as a whole. In practice, a coil having a length that is a multiple of the number of coils can be formed at high speed in a short time with a minimum risk of disconnection.

本発明によるコイル構造体の形成方法において、上記の導体細線の端部の接続は、巻芯の周囲の巻線部分で直接行われてもよいけれども、本発明によるコイル構造体の形成方法では、典型的には、導体細線の端部の接続を、柱状巻芯部の外周部から離れた基板上で行う。その場合、端部の接続が、容易且つ確実に行われ得、全体として、一本の導体細線を巻回したのと同様なコイルを備えたコイル構造体が短時間のうちに容易且つ確実に形成され得る。   In the method for forming a coil structure according to the present invention, the connection of the ends of the above-mentioned conductor thin wires may be performed directly at the winding portion around the winding core. Typically, the connection of the ends of the thin conductor wires is performed on a substrate away from the outer periphery of the columnar core. In that case, the end portions can be easily and reliably connected, and as a whole, a coil structure including a coil similar to one wound with a thin conductor wire can be easily and reliably formed in a short time. Can be formed.

以上のようなコイル構造体の巻線部分の形成に際して、巻芯がその中心軸線のまわりで回転されても、静置された巻芯のまわりで、フライヤが回転されてもよい。巻芯の横断面は、典型的には、円形であるけれども、場合によっては、楕円形などであても、矩形など多角形であってもよい。   When forming the winding portion of the coil structure as described above, the core may be rotated around its central axis, or the flyer may be rotated around the stationary core. The cross section of the core is typically circular, but depending on the case, it may be elliptical or polygonal such as rectangular.

以上のようにして形成されたコイル構造体は、電動モータや発電機のような電気機械の巻線構造体として用いられても、アンテナ等のコイルとして用いられてもよい。   The coil structure formed as described above may be used as a winding structure of an electric machine such as an electric motor or a generator, or may be used as a coil of an antenna or the like.

このコイル構造体は、電子時計のモータのステータコイルや電波時計のアンテナ等のような小型の部品として用いられ得る。これらの場合、絶縁被覆導体細線の太さは、典型的には、２０μｍ程度である。但し、より太くてもより細くてもよい。   This coil structure can be used as a small component such as a stator coil of a motor of an electronic timepiece or an antenna of a radio timepiece. In these cases, the thickness of the thin insulating conductor wire is typically about 20 μm. However, it may be thicker or thinner.

本発明の好ましい一実施の形態を添付図面に示した好ましい一実施例に基づいて説明する。   A preferred embodiment of the present invention will be described based on a preferred embodiment shown in the accompanying drawings.

図１には、腕時計用モータのステータのコイルブロックを製造する方法が示されている。   FIG. 1 shows a method for manufacturing a stator coil block of a wristwatch motor.

図１の（ａ）に示したように、まず、所望位置に配置された巻芯ないし巻芯１０の係止部１１，１２に、導電細線２０，３０の巻始め側の端部部分２１，３１のうち端部配線部２２，３２を余した部位２３，３３を絡げる。巻芯１０は、典型的には、磁芯（磁気コア）からなる。但し、ボビンであってもよい。巻芯１０の両端には、フランジ状の巻枠１８，１８が設けられている。なお、図示の便宜上、左側の巻枠１８は、想像線で示してあり、該巻枠１８を無視してワイヤ（導体細線）の結線部を示してあるけれども、実際には、巻枠１８を避けて結線等が行われる。巻芯１０は、例えば、直径が１ｍｍ程度で長さが３ｍｍ程度の円筒状体ないし円柱状体で、磁芯と電気絶縁性の被覆層とからなる。径や長さはより大きくてもより小さくてもよい。絶縁被覆層はなくてもよい。導電細線２０，３０は、夫々、絶縁被覆された銅線からなり、直径が２０μｍ程度の極めて細い導電性の線である。但し、導電細線２０，３０の径は、より細くても、より太くてもよい。なお、絡げ部位２３，３３を、係止部１１，１２に絡げる代わりに、該部位２３，３３をテープや押え部材などの所望の固定手段で巻芯１０の所定部位１１，１２に固定ないし仮固定するようにしてもよい。   As shown in FIG. 1 (a), first, the winding cores or the locking portions 11 and 12 of the winding core 10 arranged at a desired position are connected to the end portions 21 and 21 on the winding start side of the conductive thin wires 20 and 30, respectively. 31, the portions 23 and 33 with the end wiring portions 22 and 32 remaining are bound. The winding core 10 typically includes a magnetic core (magnetic core). However, it may be a bobbin. At both ends of the core 10, flange-shaped winding frames 18 and 18 are provided. For convenience of illustration, the left reel 18 is shown with an imaginary line, and the wire 18 is shown ignoring the reel 18, but in reality, the reel 18 is Avoid wiring and so on. The core 10 is, for example, a cylindrical body or a columnar body having a diameter of about 1 mm and a length of about 3 mm, and includes a magnetic core and an electrically insulating coating layer. The diameter and length may be larger or smaller. There may be no insulating coating layer. The thin conductive wires 20 and 30 are each made of an insulating coated copper wire and are very thin conductive wires having a diameter of about 20 μm. However, the diameters of the conductive thin wires 20 and 30 may be thinner or thicker. Instead of tying the binding portions 23 and 33 to the locking portions 11 and 12, the portions 23 and 33 are attached to the predetermined portions 11 and 12 of the core 10 by a desired fixing means such as a tape or a pressing member. It may be fixed or temporarily fixed.

ここでは、巻線機の詳細については、説明を省くけれども、巻線機としては、図２の（ａ）に示したようなフライヤ式の巻線機８０でも、図２の（ｂ）に示したような回転スピンドル式ないし回転チャック式の巻線機９０でもよい。   Here, although the description of the details of the winding machine is omitted, a flyer type winding machine 80 as shown in FIG. 2A is also shown in FIG. 2B as the winding machine. Such a rotating spindle type or rotating chuck type winding machine 90 may be used.

図２の（ａ）に示したフライヤ式の巻線機８０では、巻芯１０の中心軸線Ｃに一致する回転中心軸線Ｃ１のまわりでＡ方向に回転可能で且つ中心軸線Ｃ１の延在方向に沿ってＢ１，Ｂ２方向に往復動可能に機枠（図示せず）に支持され導電細線２０，３０が引出し可能なノズル８１を備えたフライヤ８２によって、機枠（図示せず）に支持された巻芯１０にワイヤ２０，３０を巻回する。フライヤ８２の回転方向は逆でもよい。この種の巻線機８０は、自動化を可能にすべく所望に応じて、例えば、特許文献１や特許文献２の巻線機のような構造を備えていてもよい。   In the flyer type winding machine 80 shown in FIG. 2 (a), it can rotate in the A direction around the rotation center axis C1 coinciding with the center axis C of the core 10, and in the extending direction of the center axis C1. And supported by the machine frame (not shown) by a flyer 82 having a nozzle 81 from which the conductive thin wires 20 and 30 can be pulled out. The wires 20 and 30 are wound around the core 10. The direction of rotation of the flyer 82 may be reversed. This type of winding machine 80 may be provided with a structure like the winding machine of Patent Document 1 or Patent Document 2, for example, as desired to enable automation.

一方、図２の（ｂ）に示したように巻芯１０が回転するタイプすなわち回転スピンドル式ないし回転チャック式の巻線機９０では、中心軸線Ｃ２のまわりで回転可能に機枠（図示せず）に組込まれたスピンドル（円筒状の巻芯の場合）９１またはチャック（中実な円柱状の巻芯の場合）に巻芯１０を装着してスピンドル９１又はチャックの回転に従って該中心軸線Ｃ２に一致する中心軸線Ｃのまわりで巻芯１０をＡ１方向に回転させると共に、中心軸線Ｃ２の延在方向に沿ってＢ１，Ｂ２方向に往復動可能なノズル９２を配置し、巻芯１０を回転させつつ、導電細線２０，３０が引出し可能なノズル９２をＢ１，Ｂ２方向に往復動させることにより、巻芯１０のまわりに導電細線２０，３０を巻回する。巻芯１０の回転方向は逆でもよい。自動化を可能にするこの種の巻線機９０は、所望に応じて、例えば、特許文献３の巻線機のような構造を備えていてもよい。   On the other hand, as shown in FIG. 2B, in the type in which the winding core 10 rotates, that is, a rotary spindle type or rotary chuck type winding machine 90, a machine frame (not shown) is rotatable around the central axis C2. The core 10 is mounted on a spindle (in the case of a cylindrical core) 91 or a chuck (in the case of a solid columnar core) incorporated in ()), and the center axis C2 is moved according to the rotation of the spindle 91 or the chuck. The core 10 is rotated in the A1 direction around the center axis C that coincides, and the nozzle 92 that can reciprocate in the B1 and B2 directions is disposed along the extending direction of the center axis C2, and the core 10 is rotated. On the other hand, the conductive thin wires 20 and 30 are wound around the core 10 by reciprocating the nozzle 92 from which the conductive thin wires 20 and 30 can be drawn in the B1 and B2 directions. The direction of rotation of the core 10 may be reversed. This type of winding machine 90 that enables automation may have a structure like the winding machine of Patent Document 3, for example, as desired.

次に、巻線機８０又は９０により、図１の（ｂ）に示したように、巻芯１０のまわりに導電細線２０，３０を巻回する。この導電細線２０，３０の巻回の際に、導電細線２０，３０が一緒に引出されて巻芯１０のまわりに巻回されるので、導電細線２０，３０の夫々にかかる張力は、ほぼ１／２になる。即ち、各導電細線２０，３０は、直径が２０μｍ程度ときわめて細いにもかかわらず、巻回の際に、二本の導電細線２０，３０が実際上一体化されているのと同様に扱われるので、断面積が２倍（直径が√２倍）の導電細線と同等になり、高速巻回に伴って比較的大きな張力が導電細線２０，３０の全体にかかる場合でも、断線の恐れが最低限に抑えられ得る。   Next, the thin conductive wires 20 and 30 are wound around the core 10 by the winding machine 80 or 90 as shown in FIG. When the thin conductive wires 20 and 30 are wound, the thin conductive wires 20 and 30 are drawn together and wound around the core 10, so that the tension applied to each of the thin conductive wires 20 and 30 is approximately 1. / 2. That is, although the thin conductive wires 20 and 30 are extremely thin with a diameter of about 20 μm, they are handled in the same way as the two conductive thin wires 20 and 30 are actually integrated during winding. Therefore, the cross-sectional area is the same as that of a conductive fine wire having a diameter twice (√2 times the diameter), and even when a relatively large tension is applied to the whole of the conductive fine wires 20 and 30 due to high-speed winding, the risk of disconnection is minimal. Can be limited.

巻線機８０や９０による巻回は、二本の導電細線２０，３０の夫々の巻数が、コイルとして要求される巻数の１／２になるところで、完了する。例えば、従来のコイルの巻数が５０００〜６０００回程度であった場合には、巻数は、２５００〜３０００回で済む。すなわち、巻数は、従来の導電細線の巻数の１／２で済むことになり、巻回に要する時間が半減される。このようにして、巻回が完了すると、巻芯ないし巻芯１０の係止部１３，１４に、導電細線３０，２０の巻終り側の端部部分３４，２４のうち端部配線部３５，２５を余した部位３６，２６を絡げて巻回部３７，２７を備えた巻線コイル３８，２８を形成する。この状態が、図１の（ｃ）に示されている。なお、絡げ部位２６，３６を、係止部１４，１３に絡げる代わりに、該部位２６，３６をテープや押え部材などの所望の固定手段で巻芯１０の所定部位１４，１３に固定ないし仮固定するようにしてもよいことは係止部１１，１２の場合と同様である。   The winding by the winding machines 80 and 90 is completed when the number of turns of each of the two thin conductive wires 20 and 30 is ½ of the number of turns required for the coil. For example, when the number of turns of the conventional coil is about 5000 to 6000, the number of turns may be 2500 to 3000. That is, the number of turns can be halved of the number of turns of the conventional thin conductive wire, and the time required for winding is reduced by half. In this way, when the winding is completed, the end wiring portion 35, of the end portions 34, 24 on the winding end side of the conductive thin wires 30, 20 is attached to the locking portions 13, 14 of the winding core or the winding core 10. Winding coils 38 and 28 having winding portions 37 and 27 are formed by tying portions 36 and 26 that are left over 25. This state is shown in FIG. Instead of tying the binding portions 26 and 36 to the locking portions 14 and 13, the portions 26 and 36 are attached to the predetermined portions 14 and 13 of the core 10 by a desired fixing means such as a tape or a pressing member. It may be fixed or temporarily fixed as in the case of the locking portions 11 and 12.

次に、図１の（ｄ）に示したように、二本の巻線コイル２８，３８を直列に結線する。すなわち、巻線コイル２８の先端側の端部配線部２２の先端２２ａをプリント基板４０の導電パターン部４１にスポット溶接などで電気的に接続すると共に、巻線コイル２８の後端側の端部配線部２５の先端２５ａ及び巻線コイル３８の先端側の端部配線部３２の先端３２ａを基板４０の同一の導電パターン部４２にスポット溶接などで電気的に接続し、更に、巻線コイル３８の後端側の端部配線部３５の先端３５ａを基板４０の導電パターン部４３にスポット溶接などで電気的に接続する。これにより、二本の巻線コイル２８，３８は、導電パターン部４１と導電パターン部４３との間で、巻線コイル２８，３８が電気的に直列に、且つ巻線コイル２８，３８の巻回部２７，３７に同じ向きに電流が流れるように結線される。巻線コイル２８，３８とプリント基板４０の導電パターン部４１，４２，４３とにより形成されるコイル構造体２は、巻回部２７，３７の夫々の巻数の二倍の巻数を備えることになる。ここで、巻線２８，３８は全体としてコイルブロック３を構成し、コイルブロック３と導電パターン部４１，４２，４３を含むプリント基板４０とにより、コイル構造体２が形成される。   Next, as shown in FIG. 1D, the two winding coils 28 and 38 are connected in series. That is, the front end 22a of the end wiring portion 22 on the front end side of the winding coil 28 is electrically connected to the conductive pattern portion 41 of the printed circuit board 40 by spot welding or the like, and the end portion on the rear end side of the winding coil 28 The tip 25a of the wiring part 25 and the tip 32a of the end wiring part 32 on the tip side of the winding coil 38 are electrically connected to the same conductive pattern part 42 of the substrate 40 by spot welding or the like. The front end 35a of the end wiring portion 35 on the rear end side is electrically connected to the conductive pattern portion 43 of the substrate 40 by spot welding or the like. As a result, the two winding coils 28 and 38 are electrically connected in series between the conductive pattern portion 41 and the conductive pattern portion 43 and the winding coils 28 and 38 are wound. The turning portions 27 and 37 are connected so that current flows in the same direction. The coil structure 2 formed by the winding coils 28 and 38 and the conductive pattern portions 41, 42, and 43 of the printed circuit board 40 has twice the number of turns of the winding portions 27 and 37. . Here, the windings 28 and 38 constitute the coil block 3 as a whole, and the coil structure 2 is formed by the coil block 3 and the printed circuit board 40 including the conductive pattern portions 41, 42 and 43.

以上の如く構成されたコイル構造体２は、例えば、図３に示したような腕時計の形態の電子時計１に組込まれる。図３では、電子時計１の外装部分が全て取り除かれた状態で示されている。   The coil structure 2 configured as described above is incorporated into, for example, an electronic timepiece 1 in the form of a wristwatch as shown in FIG. In FIG. 3, the electronic watch 1 is shown in a state where all the exterior parts have been removed.

電子時計１では、地板５１を備え、該地板５１には、電源となる電池５２、プリント基板５３に実装されたＩＣ（集積回路）５４の制御下で電池５２により駆動される水晶発振器５５、発振器５５及びＩＣの制御下で回転駆動されるモータ６０、モータ６０のロータ６１に結合されロータ６１の回転に応じて回転駆動される時計輪列５６等が配設されている。時計輪列５６には、時刻表示針（図示せず）が、取付けられ、輪列５６の運動に応じて文字板（図示せず）上を回転して時刻を表示する。   The electronic timepiece 1 includes a ground plane 51. The ground plane 51 includes a battery 52 serving as a power source, a crystal oscillator 55 driven by the battery 52 under the control of an IC (integrated circuit) 54 mounted on the printed circuit board 53, an oscillator 55 and a motor 60 that is rotationally driven under the control of the IC, a watch wheel train 56 that is coupled to the rotor 61 of the motor 60 and that is rotationally driven according to the rotation of the rotor 61, and the like. A time display hand (not shown) is attached to the timepiece wheel train 56 and rotates on a dial (not shown) according to the movement of the train wheel 56 to display the time.

ここで、モータ６０は、ロータ６１及びステータ６２に加えて、ステータ６２を磁化するコイルブロック６３を含む。このコイルブロック６３が、前述のコイルブロック３に対応する。従って、このコイルブロック６３からは、四本の配線２２，３２，３５，２５がでて、プリント基板５３の導電パターン４１，４２，４３に、接続されている。プリント基板５３のうち、導電パターン４１，４２，４３を含む部分は、前述のプリント基板４０に対応する。   Here, the motor 60 includes a coil block 63 that magnetizes the stator 62 in addition to the rotor 61 and the stator 62. The coil block 63 corresponds to the coil block 3 described above. Accordingly, four wires 22, 32, 35, and 25 are provided from the coil block 63 and are connected to the conductive patterns 41, 42, and 43 of the printed circuit board 53. Of the printed circuit board 53, portions including the conductive patterns 41, 42, and 43 correspond to the above-described printed circuit board 40.

なお、図３において、７１及び７２は電池プラス端子及び電池マイナス端子、７４は巻真、７５はリセットレバーである。   In FIG. 3, 71 and 72 are a battery plus terminal and a battery minus terminal, 74 is a winding stem, and 75 is a reset lever.

この電子時計１では、モータ６０のコイルブロック６３すなわちコイルブロック３が二本の導電細線２０，３０を纏めて同時にコイル状に巻回して巻回部２７，３７を備えた巻線コイル２８，３８を形成し、巻回部２７，３７が直列につながるように巻線コイル２８，３８の端部を接続するようにしているので、十分な巻数の巻回部を備えたコイルブロック６３を高速に短時間で製造し得、その製造コストが最低限に抑えられ得る。   In the electronic timepiece 1, the coil block 63 of the motor 60, that is, the coil block 3, winds the two conductive thin wires 20 and 30 together and winds them in a coil shape at the same time, thereby providing winding coils 28 and 38 having winding portions 27 and 37. And the ends of the winding coils 28 and 38 are connected so that the winding portions 27 and 37 are connected in series, so that the coil block 63 having a winding portion having a sufficient number of turns can be formed at high speed. It can be manufactured in a short time and its manufacturing cost can be minimized.

本発明による好ましい一実施例のコイル構造体の形成方法を示したもので、（ａ）は二本の導電細線の夫々の先端側端部を絡げた状態を示した説明図、（ｂ）は導電細線をコイル状に巻回している状態を示した説明図、（ｃ）はコイル状の巻回が完了し二本の導電細線の夫々の後端側端部を絡げた状態を示した説明図、（ｄ）は二つの巻線コイルを直列に接続すべく、巻線コイルの端部をプリント基板の導電パターン部に接続した状態を示した説明図。FIG. 1 shows a method for forming a coil structure according to a preferred embodiment of the present invention, in which (a) is an explanatory view showing a state in which the ends of the two conductive thin wires are entangled, and (b) An explanatory view showing a state in which the conductive thin wire is wound in a coil shape, and (c) is an explanation showing a state in which the coil-shaped winding is completed and the rear end side ends of the two conductive thin wires are entangled. FIG. 4D is an explanatory view showing a state in which the end of the winding coil is connected to the conductive pattern portion of the printed circuit board in order to connect two winding coils in series. 図１のコイル構造体の形成に用いられる巻線機の一部を示したもので、（ａ）はフライヤ式巻線機で巻回部を形成する例を示した説明図、（ｂ）は回転スピンドル式の巻線機で巻回部を形成する例を示した説明図。FIG. 1 shows a part of a winding machine used for forming the coil structure of FIG. 1, (a) is an explanatory view showing an example in which a winding part is formed by a flyer type winding machine, (b) Explanatory drawing which showed the example which forms a winding part with a rotary spindle type winding machine. 図１のコイル構造体をモータのステータ用のコイルブロックとして用いた電子時計の説明図。Explanatory drawing of the electronic timepiece which used the coil structure of FIG. 1 as a coil block for stators of a motor.

符号の説明Explanation of symbols

１ 電子時計
２ コイル構造体
３，６３ コイルブロック
１０ 巻芯
１１，１２，１３，１４ 係止部
２０，３０ 導電細線
２１，３１，２４，３４ 端部部分
２２，３２，２５，３５ 端部配線部
４０ プリント基板
４１，４２，４３ 導電パターン
５０
５１ 地板
５２ 電池
５３ プリント基板
５４ ＩＣ（集積回路）
５５ 水晶発振器
５６ 時計輪列
６０ モータ
６１ ロータ
６２ ステータ
６３ コイルブロック
８０，９０ 巻線機
８１，９２ ノズル
９１ スピンドル
Ａ，Ａ１ 回転方向
Ｂ１，Ｂ２ 往復並進方向
Ｃ，Ｃ１，Ｃ２ 中心軸線 DESCRIPTION OF SYMBOLS 1 Electronic timepiece 2 Coil structure 3,63 Coil block 10 Core 11, 12, 13, 14 Locking part 20,30 Conductive thin wire 21,31,24,34 End part 22,32,25,35 End wiring Part 40 Printed circuit board 41, 42, 43 Conductive pattern 50
51 ground plane 52 battery 53 printed circuit board 54 IC (integrated circuit)
55 Crystal oscillator 56 Clock train 60 Motor 61 Rotor 62 Stator 63 Coil block 80, 90 Winding machine 81, 92 Nozzle 91 Spindle A, A1 Rotating direction B1, B2 Reciprocating translation direction C, C1, C2 Center axis

Claims (6)

一まとめにした複数本の絶縁被覆導体細線を巻芯に同時に巻回して巻線を形成し、前記複数本の導体細線の端部を相互に電気的に直列に接続して該複数本の導体細線の巻回部を全体として一つのコイルにするコイル構造体の形成方法。   A plurality of insulated coated conductor wires are wound together around a winding core to form a winding, and ends of the plurality of conductor wires are electrically connected to each other in series to form the plurality of conductors. A method for forming a coil structure in which a winding portion of a thin wire is formed as one coil as a whole. 前記絶縁被覆導体細線の前記端部の接続を、柱状巻芯部の外周部から離れた基板上で行う請求項１に記載のコイル構造体の形成方法。   The method for forming a coil structure according to claim 1, wherein the connection of the end portions of the thin insulated conductor wires is performed on a substrate separated from the outer peripheral portion of the columnar core portion. 請求項１又は２に記載の方法で形成されたコイル構造体。   A coil structure formed by the method according to claim 1. 請求項３に記載のコイル構造体を備えた電気機械。   An electric machine comprising the coil structure according to claim 3. 請求項３に記載のコイル構造体を備えたアンテナ。   An antenna comprising the coil structure according to claim 3. 請求項３に記載のコイル構造体を備えた電子時計。   An electronic timepiece comprising the coil structure according to claim 3.
JP2005043297A 2005-02-21 2005-02-21 Method for forming coil structure, coil structure formed thereby, electrical machine having coil structure, antenna, and electronic clock Pending JP2006229089A (en)

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CNA2006100086690A CN1825226A (en) 2005-02-21 2006-02-21 Coil forming method, coil forming therefrom, and device equipped with the coil

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