JP4471710B2 - Spiral coil - Google Patents

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JP4471710B2
JP4471710B2 JP2004114423A JP2004114423A JP4471710B2 JP 4471710 B2 JP4471710 B2 JP 4471710B2 JP 2004114423 A JP2004114423 A JP 2004114423A JP 2004114423 A JP2004114423 A JP 2004114423A JP 4471710 B2 JP4471710 B2 JP 4471710B2
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conductor pattern
coil
connection
body portion
pattern
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JP2005302891A (en
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恵 堀内
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Citizen Electronics Co Ltd
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Description

本発明は、民生用電子機器向けのスピーカ、レシーバ、バイブレータなどに用いられる螺旋コイルに関する。   The present invention relates to a helical coil used for a speaker, receiver, vibrator, etc. for consumer electronic devices.

従来、民生用電子機器向けのスピーカ、レシーバ、バイブレータなどに用いられる螺旋コイルは、一般に、絶縁被膜を施した細いワイヤーを巻線機で所定の回数捲回し、その端末を取り出していたが、この巻線方式の場合は巻線機など設備投資が大きく、また、絶縁被膜の信頼性が欠けていた。さらに、端末処理に工数を要し、また、断線不良等の問題があった。そこで、製造が容易でコストを安価にする螺旋コイルとして、フレキシブルプリント基板を筒状に丸めて螺旋コイルを形成する構造が提案されている。（例えば、特許文献１参照）   Conventionally, helical coils used for speakers, receivers, vibrators, etc. for consumer electronic devices are generally wound a thin wire with an insulating coating a predetermined number of times with a winding machine, and the terminal is taken out. In the case of the winding method, capital investment such as a winding machine is large, and the reliability of the insulating coating is lacking. Furthermore, man-hours are required for terminal processing, and there are problems such as disconnection failure. Therefore, a structure has been proposed in which a flexible printed circuit board is rolled into a cylindrical shape to form a helical coil as a helical coil that is easy to manufacture and inexpensive. (For example, see Patent Document 1)

特開平１１−１８６８３３号（第２頁、図１） 上記した特許文献１に開示されている螺旋コイルは、図４に示すように、フレキシブルプリント基板１０には、その幅方向に対して傾斜した導体パターン１１が、複数互いに平行に埋設されている。また、フレキシブルプリント基板１０の一端部には、給電接点１２が形成されている。この給電接点１２は、フレキシブルプリント基板１０の一面で露出している。また、フレキシブルプリント基板１０の両側縁には、それぞれ結合接点１３が等間隔に複数形成されている。これらの結合接点１３は、フレキシブルプリント基板１０の一面に露出している。これらの結合接点１３に、各傾斜した導体パターン１１の始端と終端が、それぞれ接続されている。図５に示すように、このフレキシブルプリント基板１０を円筒状に丸めて、結合接点１３同士を半田やスポット溶接などで電気的および機械的に接続することで、隣接する傾斜した導体パターン１１同士が、それらの終端と始端の部分で電気的に接続されて、螺旋コイルが構成されている。Japanese Patent Laid-Open No. 11-186833 (page 2, FIG. 1) As shown in FIG. 4, the helical coil disclosed in Patent Document 1 is inclined with respect to the width direction of the flexible printed circuit board 10 as shown in FIG. A plurality of conductor patterns 11 are embedded in parallel to each other. A power supply contact 12 is formed at one end of the flexible printed circuit board 10. The power supply contact 12 is exposed on one surface of the flexible printed circuit board 10. A plurality of coupling contacts 13 are formed at equal intervals on both side edges of the flexible printed board 10. These coupling contacts 13 are exposed on one surface of the flexible printed circuit board 10. The start and end of each inclined conductor pattern 11 are connected to these coupling contacts 13, respectively. As shown in FIG. 5, the flexible printed circuit board 10 is rolled into a cylindrical shape, and the connecting contact points 13 are electrically and mechanically connected to each other by soldering, spot welding, or the like, so that the adjacent inclined conductor patterns 11 can be connected to each other. The helical coil is configured by being electrically connected at the end and the starting end.

解決しようとする問題点は、上記した特許文献１に開示した螺旋コイルは、端末処理に工数が掛かる。また、導体パターンはフレキシブルプリント基板の片面にのみ形成されており、コイルの巻き数に限度がある。また、コイルの結合接点が振動などにより断線する恐れがあり信頼性に欠ける。さらに、形状の自由度がないため、振動板や磁石などへの取付において位置決めの自由度がない。などの問題があった。   The problem to be solved is that the helical coil disclosed in the above-mentioned Patent Document 1 takes time for terminal processing. Moreover, the conductor pattern is formed only on one side of the flexible printed circuit board, and there is a limit to the number of turns of the coil. In addition, the coupling contact of the coil may be disconnected due to vibration or the like, and the reliability is lacking. Furthermore, since there is no degree of freedom in shape, there is no degree of freedom in positioning in mounting to a diaphragm or a magnet. There were problems such as.

上記課題を解決するために、本発明における螺旋コイルは、フレキシブルプリント基板のコイル本体部の少なくとも表面側に傾斜導体パターンを形成し、筒状に丸めると共に、隣接する前記傾斜導体パターン同士をそれぞれの終端と始端の部分で電気的に接続して形成した螺旋状コイルにおいて、前記コイル本体部の短辺側に形成された接続部と、前記コイル本体部の短辺両端より延出する２つの端末部を有するものであって、前記端末部には、前記傾斜導体パターンの始端または終端と前記端末部の始端または終端を結ぶ配線パターンが形成され、前記接続部には、前記傾斜導体パターンに接触する接続導体パターンが前記傾斜導体パターンとは独立して形成されており、前記接続導体パターンが形成された前記接続部を前記コイル本体部の前記傾斜導体パターンが形成されている側に折り曲げることで、前記接続導体パターンを前記傾斜導体パターンに接触させると共に、前記コイル本体部を丸めた後、前記接続部の前記接続導体パターンにより前記傾斜導体パターンの終端と始端を電気的に接続することを特徴とするものである。 In order to solve the above problems, the spiral coil according to the present invention forms an inclined conductor pattern on at least the surface side of the coil body portion of the flexible printed circuit board, rounds it into a cylindrical shape, and connects the adjacent inclined conductor patterns to each other. in helical coil which is formed by electrically connecting at the end and beginning parts, and connection portions formed on the short side of the coil body portion, two terminals extending from the short side at both ends of the coil body portion A wiring pattern that connects the start or end of the inclined conductor pattern and the start or end of the terminal portion is formed in the terminal portion, and the connection portion is in contact with the inclined conductor pattern. The connecting conductor pattern is formed independently of the inclined conductor pattern, and the connecting portion on which the connecting conductor pattern is formed is connected to the coil body portion. By bending the inclined conductor pattern to the side where the inclined conductor pattern is formed, the connecting conductor pattern is brought into contact with the inclined conductor pattern, and after the coil body portion is rounded, the inclined conductor is formed by the connecting conductor pattern of the connecting portion. The pattern is characterized in that the end and start of the pattern are electrically connected .

また、フレキシブルプリント基板のコイル本体部に傾斜導体パターンを形成し、筒状に丸めると共に、隣接する前記傾斜導体パターン同士をそれぞれの終端と始端の部分で電気的に接続して形成した螺旋状コイルにおいて、前記傾斜導体パターンは前記コイル本体部の表面側と裏面側に形成されていて、前記表面側の傾斜導体パターンと前記裏面側の傾斜導体パターンとは端部において接続されているものであって、前記傾斜導体パターンには各々終端と始端を有すると共に、前記コイル本体部の短辺側両端に形成された接続部と、前記コイル本体部の短辺側両端より延出する端末部を有しており、前記接続部には、前記傾斜導体パターンに接触する接続導体パターンが前記傾斜導体パターンとは独立して形成されていて、左右両端に形成された前記接続導体パターンは一方が前記表面側に他方が前記裏面側に形成されており、前記接続部を前記コイル本体部側に折り曲げるに際し、一方の前記接続導体パターンを前記表面側にまた他方の前記接続導体パターンを前記裏面側に折り曲げ形成後前記コイル本体部を丸めると共に、前記接続部の接続導体パターン同士を電気的に接続することを特徴とするものである。 Further, to form an inclined conductor pattern on the coil body portion of the flexible printed circuit board, it rolled into tubular Rutotomoni, electrically connected to the helical formed by the inclined conductor patterns adjacent to each other in each end and start portions In the coil, the inclined conductor pattern is formed on the front surface side and the back surface side of the coil main body, and the inclined conductor pattern on the front surface side and the inclined conductor pattern on the back surface side are connected at the end. Each of the inclined conductor patterns has a terminal end and a starting end, and connection portions formed at both ends on the short side of the coil main body, and terminal portions extending from both ends on the short side of the coil main body. The connection portion is formed with connection conductor patterns that are in contact with the inclined conductor pattern independently of the inclined conductor pattern, and formed at both left and right ends. One of the connection conductor patterns is formed on the front surface side and the other is formed on the back surface side. When the connection portion is bent toward the coil body portion side, one connection conductor pattern is placed on the front surface side and the other. The coil body portion is rounded after the connection conductor pattern is bent on the back surface side, and the connection conductor patterns of the connection portion are electrically connected to each other .

また、前記端末部は前記コイル本体部の短辺側に形成された前記接続部に連通して形成されていて、前記端末部に形成された始端または終端と前記コイル本体部に形成された始端または終端とを結ぶ配線パターンは前記接続導体パターンとは反対の面に形成されていると共に、前記コイル本体部の両面に形成された前記傾斜導体パターンの前記端部は、スルーホール電極を介して接続されていることを特徴とするものである。 Also, the terminal portion be formed to communicate with the connecting portion formed on the short sides of the coil body portion, formed with the starting end or terminal end which is formed in the terminal portion to the coil body portion beginning Alternatively, the wiring pattern connecting the terminal ends is formed on the surface opposite to the connection conductor pattern, and the end portions of the inclined conductor pattern formed on both surfaces of the coil body portion are connected via through-hole electrodes. It is characterized by being connected.

また、前記傾斜導電パターンは、前記コイル本体部の両面に形成されたパターンであるか、もしくは多層のフレキシブルプリント基板にて形成したパターンであることを特徴とするものである。 Further, the inclined conductive pattern is characterized in that the or a pattern formed on both sides of the coil body portion, or a pattern formed by a multilayer flexible printed circuit board.

また、前記接続部は、前記コイル本体部の短辺より外側に出っ張る拡張部を設け、該拡張部にて前記接続部の接続導体パターン同士が電気的に接続するよう構成したことを特徴とするものである。
Further, the connection portion, the extension portion bulges outward from the short side of the coil body portion is provided, the connecting conductor patterns of the said connecting portion at the extension portion is characterized by being configured to electrically connect Is.

また、前記接続部は、半田、銀ペースト、異方性導電ペースト（ACP）、異方性導電フィルム（ACF）または、ノンコンダクティブペースト（NCP）で接着されていることを特徴とするものである。   Further, the connecting portion is characterized by being bonded with solder, silver paste, anisotropic conductive paste (ACP), anisotropic conductive film (ACF), or non-conductive paste (NCP). .

本発明の螺旋コイルは、フレキシブルプリント基板で、筒状に丸めて螺旋コイルを形成しているので、コイルの巻き数を増すことができる。また、導体パターンの接続部は、接続部により補強されているので、コイルの結合接点が振動などにより断線する恐れがなくなる。フレキシブルプリント基板のため、コイルの形状の自由度が大きく、端末の処理に工数が削減できる。さらに、巻線機などの設備は不要で、信頼性に優れた螺旋コイルを安価に提供できる。   Since the helical coil of the present invention is a flexible printed circuit board and is rounded into a cylindrical shape to form a helical coil, the number of turns of the coil can be increased. Moreover, since the connection part of the conductor pattern is reinforced by the connection part, there is no possibility that the coupling contact of the coil is disconnected due to vibration or the like. Because it is a flexible printed circuit board, the degree of freedom of the shape of the coil is large, and the number of man-hours for terminal processing can be reduced. Furthermore, equipment such as a winding machine is unnecessary, and a highly reliable helical coil can be provided at low cost.

図１、図２、図３は、本発明の実施例に係わり、図１は、フレキシブルプリント基板の展開図、図２は、図１のフレキシブルプリント基板の端末部を折り曲げ、筒状に丸めた状態の斜視図、図３は、図２の接続部を重ね接続した状態の斜視図である。   1, 2, and 3 relate to an embodiment of the present invention, FIG. 1 is a development view of a flexible printed circuit board, and FIG. 2 is a bent end portion of the flexible printed circuit board in FIG. FIG. 3 is a perspective view of a state in which the connection portions of FIG. 2 are overlapped and connected.

図１において、１は両面フレキシブルプリント基板で、ベースフィルム部分が、例えばポリイミドからなる薄板状の湾曲状に容易に変形可能な樹脂材で形成されている。前記フレキシブルプリント基板１は、略帯状長方形をしたコイル本体部２と、該コイル本体部２の短辺両端に形成された接続部３と、該接続部３に連通して延出する2本の端末部４より構成されている。前記コイル本体部２の表裏両面に、一方の短辺２ａから他方の短辺２ｂに向かって平行して隣接し、終端と始端の一部が露出した接続接点部５ａを有する傾斜導体パターン５が複数本形成されている。前記表面側の傾斜導体パターン５と裏面側の傾斜導体パターン５はその端部に形成されたスルーホール電極６を介して接続するように形成されている。   In FIG. 1, 1 is a double-sided flexible printed circuit board, and the base film portion is formed of a resin material that can be easily deformed into a thin plate-like curved shape made of polyimide, for example. The flexible printed circuit board 1 includes a coil body portion 2 having a substantially band-like rectangle, connection portions 3 formed at both ends of the short side of the coil body portion 2, and two extending in communication with the connection portion 3. The terminal unit 4 is configured. An inclined conductor pattern 5 having connection contact portions 5a adjacent to both the front and back surfaces of the coil body portion 2 in parallel from one short side 2a to the other short side 2b and having exposed portions of the terminal end and the starting end. A plurality of lines are formed. The inclined conductor pattern 5 on the front surface side and the inclined conductor pattern 5 on the back surface side are formed so as to be connected via a through-hole electrode 6 formed at the end thereof.

前記接続部３の片面には、前記コイル本体部２に形成された傾斜導体パターン５と同ピッチで露出した複数の接続導体パターン３ａを形成し、前記コイル本体部２のそれぞれの短辺に形成された接続接点部５ａと、接続部３に形成された接続導体パターン３ａが重なるように端末部４を折り曲げる。図１に示すように、左側の端末部４は折返し線Ａで紙面表側に、右側の端末部４は折返し線Ｂで紙面裏側に折り曲げる。次に、図２に示すように、前記コイル本体部２を筒状に丸め、前記コイル本体部２の形成された傾斜導体パターン５の各々の終端と始端を向い合わせる。即ち、終端と始端の接続接点部３ａを付き合わせる。その後、図３に示すように、前記接続部３を重ねて、接続部３に形成された接続導体パターン３ａと、コイル本体部２に形成された接続接点部５ａとが接触した状態で、半田、銀ペースト、異方性導電ペースト（ACP）、異方性導電フィルム（ACF）または、ノンコンダクティブペースト（NCP）などの固着手段で電気的に接続する。前記２本の端末部４はコイル全体の始端Ｓと終端Ｇを形成することにより螺旋コイルが構成される。   A plurality of connection conductor patterns 3a exposed at the same pitch as the inclined conductor pattern 5 formed on the coil main body 2 are formed on one side of the connection portion 3, and formed on each short side of the coil main body 2. The terminal portion 4 is bent so that the connection contact portion 5a thus formed and the connection conductor pattern 3a formed on the connection portion 3 overlap each other. As shown in FIG. 1, the left terminal portion 4 is folded on the front side of the paper surface along the folding line A, and the right terminal portion 4 is folded on the back side of the paper surface along the folding line B. Next, as shown in FIG. 2, the coil body 2 is rolled into a cylindrical shape, and the end and the start of each of the inclined conductor patterns 5 formed with the coil body 2 are faced. That is, the connection contact portions 3a at the end and the start are brought together. After that, as shown in FIG. 3, the connection part 3 is overlapped, and the connection conductor pattern 3a formed on the connection part 3 and the connection contact part 5a formed on the coil main body part 2 are in contact with each other. They are electrically connected by fixing means such as silver paste, anisotropic conductive paste (ACP), anisotropic conductive film (ACF) or non-conductive paste (NCP). The two terminal portions 4 form a spiral coil by forming a start end S and a termination end G of the entire coil.

上記した実施例では、前記表両面に形成された傾斜導体パターンはスルーホール電極を介して接続したが、前記接続部で接続するようにしても良い。また、２本の端子部を接続部に連通して延出するように形成したが、接続部と反対側でコイル本体部の短辺両端に形成しても良い。さらに、前記フレキシブルプリント基板は、前記傾斜導電パターンを、片面、両面または多層に形成することにより、コイル巻数を増すことができる。   In the above-described embodiment, the inclined conductor patterns formed on the front and rear surfaces are connected via the through-hole electrodes, but may be connected at the connection portion. In addition, although the two terminal portions are formed so as to communicate with and extend to the connection portion, they may be formed at both ends of the short side of the coil main body portion on the side opposite to the connection portion. Furthermore, the flexible printed circuit board can increase the number of coil turns by forming the inclined conductive pattern on one side, both sides, or multiple layers.

以上述べた構成の螺旋コイルの作用・効果について説明する。本発明の螺旋コイルは、フレキシブルプリント基板の両面に導体パターンが形成されていて、表裏導体パターンはスルーホール電極を介して接続されているので、コイルの巻き数を増すことができる。また、導体パターンの接続部は、接続部により補強されているので、コイルの結合接点が振動などにより断線する恐れがなくなる。フレキシブルプリント基板のため、コイルの形状の自由度が大きく、端末の処理に工数が削減できる。さらに、巻線機などの設備は不要で、信頼性に優れた螺旋コイルを安価に提供できる。   The operation and effect of the helical coil having the above-described configuration will be described. In the spiral coil of the present invention, the conductor pattern is formed on both surfaces of the flexible printed board, and the front and back conductor patterns are connected via the through-hole electrodes, so that the number of turns of the coil can be increased. Moreover, since the connection part of the conductor pattern is reinforced by the connection part, there is no possibility that the coupling contact of the coil is disconnected due to vibration or the like. Because it is a flexible printed circuit board, the degree of freedom of the shape of the coil is large, and the number of man-hours for terminal processing can be reduced. Furthermore, equipment such as a winding machine is unnecessary, and a highly reliable helical coil can be provided at low cost.

本発明の実施例に係わるフレキシブルプリント基板の展開図である。It is an expanded view of the flexible printed circuit board concerning the Example of this invention. 図１のフレキシブルプリント基板の端末部を折り曲げ、筒状に丸めた状態の斜視図である。It is the perspective view of the state which bent the terminal part of the flexible printed circuit board of FIG. 1, and was rolled in the cylinder shape. 図２の接続部を重ね接続した状態の斜視図である。FIG. 3 is a perspective view of a state in which the connection portions of FIG. 従来のフレキシブルプリント基板の展開図である。It is an expanded view of the conventional flexible printed circuit board. 図４のフレキシブルプリント基板を筒状に丸めた状態の斜視図である。It is a perspective view of the state which rounded the flexible printed circuit board of FIG. 4 in the cylinder shape.

符号の説明Explanation of symbols

１ フレキシブルプリント基板
２ コイル本体部
２ａ、２ｂ 短辺
３ 接続部
３ａ 接続導体パターン
４ 端末部
５ 傾斜導体パターン
５a 接続接点部
６ スルーホール電極
Ａ、Ｂ 折り返し線

DESCRIPTION OF SYMBOLS 1 Flexible printed circuit board 2 Coil main-body part 2a, 2b Short side 3 Connection part 3a Connection conductor pattern 4 Terminal part 5 Inclined conductor pattern 5a Connection contact part 6 Through-hole electrode A, B Folding line

Claims (6)

フレキシブルプリント基板のコイル本体部の少なくとも表面側に傾斜導体パターンを形成し、筒状に丸めると共に、隣接する前記傾斜導体パターン同士をそれぞれの終端と始端の部分で電気的に接続して形成した螺旋状コイルにおいて、
前記コイル本体部の短辺側に形成された接続部と、前記コイル本体部の短辺両端より延出する２つの端末部を有するものであって、前記端末部には、前記傾斜導体パターンの始端または終端と前記端末部の始端または終端を結ぶ配線パターンが形成され、前記接続部には、前記傾斜導体パターンに接触する接続導体パターンが前記傾斜導体パターンとは独立して形成されており、前記接続導体パターンが形成された前記接続部を前記コイル本体部の前記傾斜導体パターンが形成されている側に折り曲げることで、前記接続導体パターンを前記傾斜導体パターンに接触させると共に、前記コイル本体部を丸めた後、前記接続部の前記接続導体パターンにより前記傾斜導体パターンの終端と始端を電気的に接続することを特徴とする螺旋コイル。 A spiral formed by forming an inclined conductor pattern on at least the surface side of the coil main body portion of the flexible printed circuit board, rounding it into a cylindrical shape, and electrically connecting the adjacent inclined conductor patterns to each other at the terminal and starting ends. In the coil
A connecting portion formed on the short sides of the coil body portion include those having two terminal portions extending from the short side at both ends of the coil body portion, the terminal portion of the inclined conductive pattern A wiring pattern connecting a start end or a terminal end and a start end or a terminal end of the terminal portion is formed, and the connection conductor is formed with a connection conductor pattern in contact with the inclined conductor pattern independently of the inclined conductor pattern, The connection conductor pattern is formed on the coil body by bending the connection portion to the side where the inclined conductor pattern is formed, thereby bringing the connection conductor pattern into contact with the inclined conductor pattern and the coil body. A spiral coil, wherein a terminal end and a starting end of the inclined conductor pattern are electrically connected by the connection conductor pattern of the connection portion . フレキシブルプリント基板のコイル本体部に傾斜導体パターンを形成し、筒状に丸めると共に、隣接する前記傾斜導体パターン同士をそれぞれの終端と始端の部分で電気的に接続して形成した螺旋状コイルにおいて、
前記傾斜導体パターンは前記コイル本体部の表面側と裏面側に形成されていて、前記表面側の傾斜導体パターンと前記裏面側の傾斜導体パターンとは端部において接続されているものであって、前記傾斜導体パターンには各々終端と始端を有すると共に、前記コイル本体部の短辺側両端に形成された接続部と、前記コイル本体部の短辺側両端より延出する端末部を有しており、前記接続部には、前記傾斜導体パターンに接触する接続導体パターンが前記傾斜導体パターンとは独立して形成されていて、左右両端に形成された前記接続導体パターンは一方が前記表面側に他方が前記裏面側に形成されており、前記接続部を前記コイル本体部側に折り曲げるに際し、一方の前記接続導体パターンを前記表面側にまた他方の前記接続導体パターンを前記裏面側に折り曲げ形成後前記コイル本体部を丸めると共に、前記接続部の接続導体パターン同士を電気的に接続することを特徴とする螺旋コイル。 Forming a sloped conductor pattern on the coil body portion of the flexible printed circuit board, Rutotomoni rounding into a cylindrical shape, the helical coil formed by electrically connecting the inclined conductor patterns adjacent to each other in each end and start portions ,
The inclined conductor pattern is formed on the front surface side and the back surface side of the coil main body, and the inclined conductor pattern on the front surface side and the inclined conductor pattern on the back surface side are connected at an end, Each of the inclined conductor patterns has a terminal end and a starting end, a connection portion formed at both ends on the short side of the coil main body portion, and a terminal portion extending from both ends on the short side of the coil main body portion. In the connection portion, a connection conductor pattern that contacts the inclined conductor pattern is formed independently of the inclined conductor pattern, and one of the connection conductor patterns formed at both right and left ends is on the surface side. The other is formed on the back surface side, and when the connection portion is bent toward the coil body portion side, one connection conductor pattern is placed on the front surface side and the other connection conductor pattern is placed on the other side. Serial with rounded back side bending form after the coil body portion, the helical coil, characterized in that electrically connecting the connection conductor patterns of the said connection. 前記端末部は前記コイル本体部の短辺側に形成された前記接続部に連通して形成されていて、前記端末部に形成された始端または終端と前記コイル本体部に形成された始端または終端とを結ぶ配線パターンは前記接続導体パターンとは反対の面に形成されていると共に、前記コイル本体部の両面に形成された前記傾斜導体パターンの前記端部は、スルーホール電極を介して接続されていることを特徴とする請求項２に記載の螺旋コイル。 The terminal portion be formed to communicate with the connecting portion formed on the short sides of the coil body portion, said terminal portion formed beginning or end and the coil body portion formed beginning or end Is formed on a surface opposite to the connection conductor pattern, and the end portions of the inclined conductor pattern formed on both surfaces of the coil main body are connected via a through-hole electrode. The helical coil according to claim 2, wherein: 前記傾斜導電パターンは、前記コイル本体部の両面に形成されたパターンであるか、もしくは多層のフレキシブルプリント基板にて形成したパターンであることを特徴とする請求項２〜３の何れか一項に記載の螺旋コイル。 The inclined conductive pattern, the or a pattern formed on both sides of the coil body portion, or to any one of claims 2-3, characterized in that the pattern formed by a multilayer flexible printed circuit board The described helical coil. 前記接続部は、前記コイル本体部の短辺より外側に出っ張る拡張部を設け、該拡張部にて前記接続部の接続導体パターン同士が電気的に接続するよう構成したことを特徴とする請求項２〜４の何れか一項に記載の螺旋コイル。 The connecting portion according to claim wherein the extension portion bulges outward from the short side of the coil body portion is provided, the connecting conductor patterns of the said connecting portion at the extension portion is characterized by being configured to electrically connect The helical coil as described in any one of 2-4 . 前記接続部は、半田、銀ペースト、異方性導電ペースト（ＡＣＰ）、異方性導電フィルム（ＡＣＦ）、またはノンコンダクティブペースト（ＮＣＰ）で接着されていることを特徴とする請求項５記載の螺旋コイル。   The said connection part is adhere | attached with solder, silver paste, anisotropic conductive paste (ACP), anisotropic conductive film (ACF), or non-conductive paste (NCP). Spiral coil.
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