JP6451470B2 - 3-axis antenna coil - Google Patents

3-axis antenna coil Download PDF

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JP6451470B2
JP6451470B2 JP2015080683A JP2015080683A JP6451470B2 JP 6451470 B2 JP6451470 B2 JP 6451470B2 JP 2015080683 A JP2015080683 A JP 2015080683A JP 2015080683 A JP2015080683 A JP 2015080683A JP 6451470 B2 JP6451470 B2 JP 6451470B2
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coil
core
exterior body
binding portion
metal terminal
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JP2016201681A (en
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慎五 清水
慎五 清水
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Murata Manufacturing Co Ltd
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Description

本発明は、車両のドアの施錠、解錠を無線で操作するキーレスエントリーシステムや、防犯装置の受信機などに用いる小型の３軸アンテナコイルに関する。   The present invention relates to a small three-axis antenna coil used for a keyless entry system that wirelessly controls locking and unlocking of a vehicle door, a receiver of a security device, and the like.

キーレスエントリーシステムは、ユーザが所持する小型の通信機と、車両との間で無線通信を行う。通信機には、全方向からの電波を受信することができる３軸アンテナコイルが搭載されている。   The keyless entry system performs wireless communication between a small communication device possessed by a user and a vehicle. The communicator is equipped with a three-axis antenna coil that can receive radio waves from all directions.

特開２００５−１２４０１３号公報Japanese Patent Laid-Open No. 2005-124013

特許文献１に記載されている３軸アンテナコイルは、扁平な柱状のフェライトからなるコアに、互いに直交する３つの巻溝を設け、３つの巻溝に３つのコイルをそれぞれ巻線している。そのため、コアは複雑な形状となる。特に、コアの側面外周に設けられた巻溝に巻回された最外周のコイルは他のコイルに比べて受信感度が低いため、より多く巻回しなければならないが、より多く巻回するためには巻溝を大きくしなければならず、その結果、コアが肉薄になって耐衝撃性が低下する。このように、従来の３軸アンテナコイルは、高い受信感度と高い耐衝撃性とを両立することが難しかった。   In the triaxial antenna coil described in Patent Document 1, three winding grooves orthogonal to each other are provided on a core made of a flat columnar ferrite, and three coils are wound around the three winding grooves, respectively. Therefore, the core has a complicated shape. In particular, the outermost coil wound in the winding groove provided on the outer periphery of the side surface of the core has lower reception sensitivity than other coils, so it must be wound more, but in order to wind more Must have a larger winding groove, resulting in a thinner core and reduced impact resistance. Thus, it has been difficult for the conventional triaxial antenna coil to achieve both high reception sensitivity and high impact resistance.

本発明の３軸アンテナコイルは、
コアに３つコイルの巻軸が互いに直交するように巻回された３軸アンテナコイルにおいて、
コアと、
コアに巻回された第１のコイルと第２のコイルと、
第１のコイルおよび第２のコイルの端末が接続された絡げ部を有する複数の第１の金属端子と、
絡げ部を有する複数の第２の金属端子と、
コアと、第１の金属端子の絡げ部を含む第１の金属端子の一部と、第２の金属端子の絡げ部を除く第２の金属端子の一部とを埋設する外装体と、
外装体の外周に巻回され、端末が外装体から露出する絡げ部に接続された第３のコイルと、
からなることを特徴とする。 The triaxial antenna coil of the present invention is
In the three-axis antenna coil wound around the core so that the winding axes of the three coils are orthogonal to each other,
The core,
A first coil and a second coil wound around a core;
A plurality of first metal terminals having a binding portion to which terminals of the first coil and the second coil are connected;
A plurality of second metal terminals having a binding portion;
An exterior body that embeds the core, a part of the first metal terminal including the binding part of the first metal terminal, and a part of the second metal terminal excluding the binding part of the second metal terminal; ,
A third coil wound around the outer periphery of the exterior body and connected to the binding portion where the terminal is exposed from the exterior body;
It is characterized by comprising.

本発明の３軸アンテナコイルは、３つのコイルのうちの２つを、直接コアに巻回し、残りの１つを外装体に巻回したので、コアの形状を単純にすることができるとともに、最外周のコイルの巻溝を大きくすることができる。その結果、高い耐衝撃性と高い受信感度とを有した３軸アンテナコイルを提供することができる。   In the three-axis antenna coil of the present invention, two of the three coils are directly wound around the core and the remaining one is wound around the exterior body, so that the shape of the core can be simplified, The winding groove of the outermost coil can be enlarged. As a result, a triaxial antenna coil having high impact resistance and high receiving sensitivity can be provided.

本発明の３軸アンテナコイルの一実施例を示す斜視図である。It is a perspective view which shows one Example of the triaxial antenna coil of this invention. 本発明の３軸アンテナコイルの一実施例を示す分解斜視図である。It is a disassembled perspective view which shows one Example of the triaxial antenna coil of this invention. 本発明の３軸アンテナコイルの一実施例の製造方法を説明する図である。It is a figure explaining the manufacturing method of one Example of the triaxial antenna coil of this invention.

以下、図面を参照して、本発明の３軸アンテナコイルの一実施例を説明する。
図１（ａ）は本発明の３軸アンテナコイルを上面から見た斜視図であり、図１（ｂ）は、３軸アンテナコイルの底面側の斜視図である。図２は、３軸アンテナコイルの分解斜視図である。 An embodiment of a triaxial antenna coil according to the present invention will be described below with reference to the drawings.
FIG. 1A is a perspective view of the triaxial antenna coil of the present invention as viewed from above, and FIG. 1B is a perspective view of the bottom surface side of the triaxial antenna coil. FIG. 2 is an exploded perspective view of the triaxial antenna coil.

３軸アンテナコイル１は、フェライトからなるコア１０と、コア１０に巻回されたＸ軸コイル２１とＹ軸コイル２２と、金属板からなる第１の金属端子３１、３１、３１、３１および第２の金属端子４１、４１と、絶縁性の樹脂からなる外装体５１と、外装体５１の側面外周に巻回されたＺ軸コイル２３とからなる。   The triaxial antenna coil 1 includes a core 10 made of ferrite, an X-axis coil 21 and a Y-axis coil 22 wound around the core 10, first metal terminals 31, 31, 31, 31 and metal plates made of a metal plate. 2 metal terminals 41, 41, an exterior body 51 made of insulating resin, and a Z-axis coil 23 wound around the outer periphery of the side surface of the exterior body 51.

コア１０は偏平な柱状で、コア１０の上面の中央および下面の中央において互いに直交するＸ巻溝１１とＹ巻溝１２とがコアの外周に設けられ、Ｘ巻溝１１にＸ軸コイル２１が巻回され、Ｙ巻溝１２にＹ軸コイル２２が巻回される。なお、Ｘ巻線２１とＹ巻線２２が接触しないように、コア１０の上面および下面におけるＸ巻溝１１の深さは、Ｙ巻溝１２の深さより深くなっている。   The core 10 has a flat columnar shape, and an X winding groove 11 and a Y winding groove 12 that are orthogonal to each other at the center of the upper surface and the center of the lower surface of the core 10 are provided on the outer periphery of the core. The Y-coil 22 is wound around the Y-winding groove 12. In addition, the depth of the X winding groove 11 on the upper surface and the lower surface of the core 10 is deeper than the depth of the Y winding groove 12 so that the X winding 21 and the Y winding 22 do not contact each other.

第１の金属端子３１および第２の金属端子４１は打ち抜いた金属板を所望の形状に折り曲げて形成され、第１の金属端子３１は一端側を実装部３１ｂとし、他端側に絡げ部３１ａが設けられる。第２の金属端子４１は一端側を実装部４１ｂとし、他端側に絡げ部４１ａが設けられる。
第１の金属端子３１および第２の金属端子４１は、コア１０の下方に配置、固定され、第１の金属端子３１、３１、３１、３１の絡げ部３１ａにＸ軸コイル２１とＹ軸コイル２２の端末がそれぞれ絡げられて、電気的に接続される。 The first metal terminal 31 and the second metal terminal 41 are formed by bending a punched metal plate into a desired shape, and the first metal terminal 31 has a mounting portion 31b at one end side and a binding portion at the other end side. 31a is provided. The second metal terminal 41 has a mounting portion 41b on one end side and a binding portion 41a on the other end side.
The first metal terminal 31 and the second metal terminal 41 are disposed and fixed below the core 10, and the X-axis coil 21 and the Y-axis are connected to the binding portion 31 a of the first metal terminals 31, 31, 31, 31. The ends of the coils 22 are entangled and electrically connected.

外装体５１は、Ｘ軸コイル２１とＹ軸コイル２２とが巻回されたコア１０と、実装部３１ｂを除く第１の金属端子３１と、実装部４１ｂと絡げ部４１ａとを除く第２の金属端子４１とを埋設して一体成形される。外装体５１の上部には上鍔５２、下部には下鍔５３が設けられ、第１の金属端子３１の実装部３１ｂおよび第２の金属端子４１の実装部４１ｂは、下鍔５３の底面から露出し、第２の金属端子４１の絡げ部４１ａは、下鍔５３の外周面から露出している。   The exterior body 51 includes the core 10 around which the X-axis coil 21 and the Y-axis coil 22 are wound, the first metal terminal 31 excluding the mounting portion 31b, and the second excluding the mounting portion 41b and the binding portion 41a. The metal terminal 41 is embedded and integrally molded. An upper collar 52 is provided on the upper part of the outer package 51, and a lower collar 53 is provided on the lower part. The mounting part 31 b of the first metal terminal 31 and the mounting part 41 b of the second metal terminal 41 are formed from the bottom surface of the lower collar 53. The tangled portion 41 a of the second metal terminal 41 is exposed from the outer peripheral surface of the lower collar 53.

Ｚ軸コイル２３は、外装体５１の上鍔５２と下鍔５３との間に、Ｘ軸コイル２１およびＹ軸コイル２２に直交するように巻回され、第２の金属端子４１、４１の絡げ部４１ａにＺ軸コイル２３の端末がそれぞれ絡げられて、電気的に接続される。   The Z-axis coil 23 is wound between the upper collar 52 and the lower collar 53 of the exterior body 51 so as to be orthogonal to the X-axis coil 21 and the Y-axis coil 22. The ends of the Z-axis coil 23 are entangled with the flange 41a and are electrically connected.

なお、３軸アンテナコイルをプリント基板に実装した際に、半田付けの状態を目視で確認しやすいように、第２の金属端子４１の絡げ部４１ａは、平面視で、実装部３１ｂと重ならない下鍔５３の外周面の位置となっている。   When the triaxial antenna coil is mounted on the printed circuit board, the binding portion 41a of the second metal terminal 41 is overlapped with the mounting portion 31b in a plan view so that the soldering state can be easily visually confirmed. It is the position of the outer peripheral surface of the lower collar 53 that does not become.

次に、本発明の３軸アンテナコイルの製造方法を、図３を用いて説明する。   Next, the manufacturing method of the triaxial antenna coil of this invention is demonstrated using FIG.

最初に、図３（ａ）に示すように、コア１０の底面に接着剤を塗布し、コア１０をリードフレーム６１に搭載して、コア１０と第１の金属端子３１、３１、３１、３１とを接着する。
リードフレーム６１は、金属板を所望の形状に打ち抜いて折り曲げて形成されたものであり、第１の金属端子３１、３１、３１、３１および第２の金属端子４１、４１が、保持部６２を介してリードフレーム６１と接続されている。第１の金属端子３１、３１、３１、３１には、絡げ部３１ａおよび実装部３１ｂが設けられ、第２の金属端子４１、４１には、絡げ部４１ａおよび実装部４１ｂが設けられている。また、リードフレーム６１および保持部６２には、位置決め用の貫通孔が設けられている。 First, as shown in FIG. 3A, an adhesive is applied to the bottom surface of the core 10, the core 10 is mounted on the lead frame 61, and the core 10 and the first metal terminals 31, 31, 31, 31. And glue.
The lead frame 61 is formed by punching a metal plate into a desired shape and bending it, and the first metal terminals 31, 31, 31, 31 and the second metal terminals 41, 41 hold the holding part 62. It is connected to the lead frame 61 via. The first metal terminals 31, 31, 31, 31 are provided with a binding part 31a and a mounting part 31b, and the second metal terminals 41, 41 are provided with a binding part 41a and a mounting part 41b. Yes. The lead frame 61 and the holding part 62 are provided with positioning through holes.

コア１０は、偏平な柱状で、コア１０の上面の中央および下面の中央において互いに直交するＸ巻溝１１とＹ巻溝１２とがコアの外周に設けられ、Ｘ巻溝１１の深さは、Ｙ巻溝１２の深さより深くなっている。
なお、コア１０と第１の金属端子３１、３１、３１、３１とは接着されるが、第２の金属端子３２、３２とは接着されない。 The core 10 has a flat columnar shape, and an X winding groove 11 and a Y winding groove 12 that are orthogonal to each other at the center of the upper surface and the center of the lower surface of the core 10 are provided on the outer periphery of the core. It is deeper than the depth of the Y winding groove 12.
The core 10 and the first metal terminals 31, 31, 31, 31 are bonded, but the second metal terminals 32, 32 are not bonded.

次に、図３（ｂ）に示すように、第１の金属端子３１、３１、３１、３１を、保持部６２で切断し、第１の金属端子３１、３１、３１、３１が接着されたコア１０をフレーム６１から切り離す。そして、Ｘ巻溝１１にＸ軸コイル２１を巻回し、Ｙ巻溝１２にＹ軸コイル２２を巻回する。その後、Ｘ軸コイル２１およびＹ軸コイル２２の両端を、第１の金属端子３１、３１、３１、３１の絡げ部３１ａにそれぞれ絡げて、溶接などの手段によって、電気的に接続する。   Next, as shown in FIG. 3B, the first metal terminals 31, 31, 31, 31 are cut by the holding portion 62, and the first metal terminals 31, 31, 31, 31 are bonded. The core 10 is separated from the frame 61. Then, the X-axis coil 21 is wound around the X-winding groove 11, and the Y-axis coil 22 is wound around the Y-winding groove 12. Thereafter, both ends of the X-axis coil 21 and the Y-axis coil 22 are respectively entangled with the entangled portions 31a of the first metal terminals 31, 31, 31, 31 and electrically connected by means such as welding.

次に、図３（ｃ）に示すように、第１の金属端子３１、３１、３１、３１が接着されたコア１０と、第２の金属端子４１、４１が設けられたリードフレーム６１をともに、図示しない金型の所定の位置に配置し、金型内に絶縁性の樹脂を注入して外装体５１を形成する。このとき、位置決め用の貫通孔を用いることで、位置決めが容易となる。   Next, as shown in FIG. 3C, the core 10 to which the first metal terminals 31, 31, 31, 31 are bonded and the lead frame 61 provided with the second metal terminals 41, 41 are both together. Then, the outer package 51 is formed by placing it at a predetermined position of a mold (not shown) and injecting an insulating resin into the mold. At this time, positioning is facilitated by using the positioning through holes.

外装体５１は、上部に上鍔５２、下部に下鍔５３をそなえ、コア１０と、Ｘ軸コイル２１と、Ｙ軸コイル２２と、実装部３１ｂを除く第１の金属端子３１、３１、３１、３１と、実装部４１ｂおよび絡げ部４１ａを除く第２の金属端子４１、４１とを、外装体５１の内部に埋設している。
第１の金属端子３１の実装部３１ｂおよび第２の金属端子４１の実装部４１ａおよび絡げ部４１ｂは、外装体５１の下鍔５３の底面から露出している。
つまり、第１の金属端子３１の絡げ部３１ａは外装体５１に埋設されているが、第２の金属端子の絡げ部４１ａは、外装体５１の下鍔５３の外周から露出している。 The exterior body 51 has an upper collar 52 at the top and a lower collar 53 at the bottom, and the first metal terminals 31, 31, 31 except for the core 10, the X-axis coil 21, the Y-axis coil 22, and the mounting portion 31b. , 31 and the second metal terminals 41, 41 excluding the mounting portion 41b and the binding portion 41a are embedded in the exterior body 51.
The mounting portion 31 b of the first metal terminal 31 and the mounting portion 41 a and the binding portion 41 b of the second metal terminal 41 are exposed from the bottom surface of the lower collar 53 of the exterior body 51.
That is, the binding portion 31 a of the first metal terminal 31 is embedded in the exterior body 51, but the binding portion 41 a of the second metal terminal is exposed from the outer periphery of the lower collar 53 of the exterior body 51. .

次に、図３（ｄ）に示すように、第２の金属端子４１、４１を、保持部６２で切断し、外装体５１をフレーム６１から切り離す。そして、上鍔５２と下鍔５３の間にＺ軸コイル２３を巻回する。このとき、絡げ部４１ａは、Ｚ軸コイルの巻回を阻害しないように、下鍔５３の外周に配置される。その後、Ｚ軸コイル２３の両端を、絡げ部４１ａ、４１ａにそれぞれ絡げ、溶接などの手段によって、電気的に接続する。   Next, as shown in FIG. 3D, the second metal terminals 41, 41 are cut by the holding portion 62, and the exterior body 51 is cut off from the frame 61. Then, the Z-axis coil 23 is wound between the upper collar 52 and the lower collar 53. At this time, the binding portion 41a is disposed on the outer periphery of the lower collar 53 so as not to hinder the winding of the Z-axis coil. Thereafter, both ends of the Z-axis coil 23 are respectively connected to the binding portions 41a and 41a and electrically connected by means such as welding.

最後に、図３（ｅ）に示すように、第１の金属端子３１、３１、３１、３１および第２の金属端子４１、４１から保持部６２を切り落として、３軸アンテナコイル１を得る。   Finally, as shown in FIG. 3E, the holding portion 62 is cut off from the first metal terminals 31, 31, 31, 31 and the second metal terminals 41, 41 to obtain the triaxial antenna coil 1.

上記した製造方法では、６個の金属端子を用いて、それぞれの金属端子に、Ｘ軸コイル、Ｙ軸コイル、Ｚ軸コイルの両端をそれぞれ絡げたが、一つの金属端子に、複数の絡げ部を設けて共通の端子としてもよい。そのような場合は、Ｘ軸コイルおよびＺ軸コイルの両端を絡げる絡げ部を外装体に埋設し、Ｚ軸コイルの端末を絡げる絡げ部を外装体から露出するようにすればよい。   In the manufacturing method described above, six metal terminals are used, and both ends of the X-axis coil, the Y-axis coil, and the Z-axis coil are entangled with each metal terminal, but a plurality of entanglements are associated with one metal terminal. A common terminal may be provided by providing a portion. In such a case, the entangled portion that ties both ends of the X-axis coil and the Z-axis coil is embedded in the exterior body, and the entangled portion that entangles the end of the Z-axis coil is exposed from the exterior body. That's fine.

なお、Ｚ軸コイルを保護するために、外装体の外周に絶縁テープを貼付してもよいし、樹脂で被覆してもよい。
Ｘ巻溝はＹ巻溝よりも深いので、Ｘ軸コイルとＹ軸コイルとは接触してショートすることがない。 In order to protect the Z-axis coil, an insulating tape may be attached to the outer periphery of the exterior body, or it may be covered with a resin.
Since the X-winding groove is deeper than the Y-winding groove, the X-axis coil and the Y-axis coil do not contact and short-circuit.

上記した３軸アンテナは、コアにＸ軸コイルとＹ軸コイルを直接巻回して外装体に埋設し、Ｚ軸コイルを外装体に巻回したので、コアの形状を単純にすることができ、また、外装体は丈夫な樹脂製のため、Ｚ軸コイルの巻溝を容易に大きくすることができる。その結果、高い耐衝撃性と高い受信感度を有した３軸アンテナコイルとすることができる。   Since the above-described three-axis antenna has the X-axis coil and the Y-axis coil wound directly around the core and embedded in the exterior body, and the Z-axis coil is wound around the exterior body, the shape of the core can be simplified. Further, since the exterior body is made of a strong resin, the winding groove of the Z-axis coil can be easily enlarged. As a result, a three-axis antenna coil having high impact resistance and high receiving sensitivity can be obtained.

１ ３軸アンテナ
１０ コア
１１ Ｘ巻溝
１２ Ｙ巻溝
２１ Ｘ軸コイル
２２ Ｙ軸コイル
２３ Ｚ軸コイル
３１ 第１の金属端子
４１ 第２の金属端子
３１ａ、４１ａ 絡げ部
３１ｂ、４１ｂ 実装部
５１ 外装体
５２ 上鍔
５３ 下鍔
６１ リードフレーム
６２ 保持部 DESCRIPTION OF SYMBOLS 1 3 axis antenna 10 Core 11 X winding groove 12 Y winding groove 21 X axis coil 22 Y axis coil 23 Z axis coil 31 1st metal terminal 41 2nd metal terminal 31a, 41a Tying part 31b, 41b Mounting part 51 Outer body 52 Upper collar 53 Lower collar 61 Lead frame 62 Holding part

Claims (12)

コアに３つコイルの巻軸が互いに直交するように巻回された３軸アンテナコイルにおいて、
前記コアと、
前記コアに巻回された第１のコイルと第２のコイルと、
前記第１のコイルおよび前記第２のコイルの端末が接続された絡げ部を有する複数の第１の金属端子と、
絡げ部を有する複数の第２の金属端子と、
前記コアと、前記第１の金属端子の絡げ部を含む前記第１の金属端子の一部と、前記第２の金属端子の絡げ部を除く前記第２の金属端子の一部とを埋設する外装体と、
前記外装体の外周に巻回され、端末が前記外装体から露出する絡げ部に接続された第３のコイルと、
からなることを特徴とする３軸アンテナコイル。 In the three-axis antenna coil wound around the core so that the winding axes of the three coils are orthogonal to each other,
The core;
A first coil and a second coil wound around the core;
A plurality of first metal terminals having a binding portion to which ends of the first coil and the second coil are connected;
A plurality of second metal terminals having a binding portion;
The core, a part of the first metal terminal including the binding part of the first metal terminal, and a part of the second metal terminal excluding the binding part of the second metal terminal. An exterior body to be embedded;
A third coil wound around the outer periphery of the exterior body and connected to a binding portion where the terminal is exposed from the exterior body;
A three-axis antenna coil comprising: 前記コアは、前記コアの上面と底面で直交する２つの溝が設けられ、前記第１のコイルと前記第２のコイルは、前記溝に夫々巻回され、
前記外装体は、上鍔と下鍔が設けられ、
前記第３のコイルは、前記外装体に設けられた上鍔と下鍔との間に巻回された
請求項１に記載の３軸アンテナコイル。 The core is provided with two grooves orthogonal to each other on the top and bottom surfaces of the core, and the first coil and the second coil are wound around the grooves, respectively.
The exterior body is provided with an upper collar and a lower collar,
The triaxial antenna coil according to claim 1, wherein the third coil is wound between an upper collar and a lower collar provided on the exterior body. 前記第２の金属端子の絡げ部は、前記下鍔の外周から露出している
請求項２に記載の３軸アンテナコイル。 The triaxial antenna coil according to claim 2, wherein the binding portion of the second metal terminal is exposed from the outer periphery of the lower collar. コアに３つコイルの巻軸が互いに直交するように巻回された３軸アンテナコイルにおいて、
前記コアと、
前記コアに巻回された第１のコイルと第２のコイルと、
１つ以上の絡げ部を有する複数の金属端子と、
前記コアと、前記第１のコイルおよび前記第２のコイルの端末が接続された絡げ部を含み、前記第１のコイルおよび前記第２のコイルの端末が何れも接続されていない絡げ部を除く、金属端子の一部とを埋設する外装体と、
前記外装体の外周に巻回され、端末が前記外装体から露出する絡げ部に接続された第３のコイルと、
からなることを特徴とする３軸アンテナコイル。 In the three-axis antenna coil wound around the core so that the winding axes of the three coils are orthogonal to each other,
The core;
A first coil and a second coil wound around the core;
A plurality of metal terminals having one or more binding portions;
The linking portion including the core and a binding portion to which the terminals of the first coil and the second coil are connected, and the binding portion to which neither of the first coil and the terminal of the second coil is connected An exterior body in which a part of the metal terminal is embedded,
A third coil wound around the outer periphery of the exterior body and connected to a binding portion where the terminal is exposed from the exterior body;
A three-axis antenna coil comprising: 前記コアは、前記コアの上面と底面で直交する２つの溝が設けられ、前記第１のコイルと前記第２のコイルは、前記溝に夫々巻回され、
前記外装体は、上鍔と下鍔が設けられ、
前記第３のコイルは、前記外装体に設けられた上鍔と下鍔との間に巻回されたことを特徴とする請求項４に記載の３軸アンテナコイル。 The core is provided with two grooves orthogonal to each other on the top and bottom surfaces of the core, and the first coil and the second coil are wound around the grooves, respectively.
The exterior body is provided with an upper collar and a lower collar,
The three-axis antenna coil according to claim 4, wherein the third coil is wound between an upper collar and a lower collar provided on the exterior body. 前記第１のコイルおよび前記第２のコイルの端末が接続されていない前記金属端子の絡げ部は、前記下鍔の外周から露出している
請求項５に記載の３軸アンテナコイル。 6. The triaxial antenna coil according to claim 5, wherein a binding portion of the metal terminal to which ends of the first coil and the second coil are not connected is exposed from an outer periphery of the lower arm. 絡げ部を有する第１の金属端子を、コアに複数配置する工程と、
前記コアに第１のコイルおよび第２のコイルを互いに直交するように巻回する工程と、
前記第１のコイルおよび前記第２のコイルの両端を、前記第１の金属端子の絡げ部に接続する工程と、
前記コアと、
前記第１の金属端子の絡げ部を含む前記第１の金属端子の一部と、
前記第２の金属端子の絡げ部を除く前記第２の金属端子の一部とを、樹脂で埋設して外装体を形成する工程と、
前記第１のコイルおよび前記第２のコイルに直交するように、前記外装体の外周に第３のコイルを巻回する工程と、
前記第３のコイルの端末を、前記外装体から露出する絡げ部に接続する工程と、
からなることを特徴とする３軸アンテナコイルの製造方法。 A step of arranging a plurality of first metal terminals having a binding portion on the core;
Winding the first coil and the second coil around the core so as to be orthogonal to each other;
Connecting both ends of the first coil and the second coil to the binding portion of the first metal terminal;
The core;
A part of the first metal terminal including a binding portion of the first metal terminal;
A step of embedding a part of the second metal terminal excluding the binding portion of the second metal terminal with a resin to form an exterior body;
Winding a third coil around the outer periphery of the exterior body so as to be orthogonal to the first coil and the second coil;
Connecting the terminal of the third coil to the binding portion exposed from the exterior body;
A method for manufacturing a three-axis antenna coil, comprising: 前記外装体は、上鍔と下鍔が設けられ、
前記第３のコイルは、前記上鍔と前記下鍔との間に巻回されている
請求項７に記載の３軸アンテナコイルの製造方法。 The exterior body is provided with an upper collar and a lower collar,
The method of manufacturing a triaxial antenna coil according to claim 7, wherein the third coil is wound between the upper and lower cages. 前記第２の金属端子は、絡げ部が前記下鍔の外周から露出する
請求項８に記載の３軸アンテナコイルの製造方法。 The method of manufacturing a triaxial antenna coil according to claim 8, wherein the second metal terminal has a binding portion exposed from an outer periphery of the lower collar. １つ以上の絡げ部を有する複数の金属端子を、コアに複数配置する工程と、
前記コアに第１のコイルおよび第２のコイルを互いに直交するように巻回する工程と、
前記第１のコイルおよび前記第２のコイルの両端を、前記金属端子の絡げ部に絡げる工程と、
前記コアと、前記第１のコイルおよび前記第２のコイルの端末が接続された絡げ部を含み、前記第１のコイルおよび前記第２のコイルの端末が何れも接続されていない絡げ部を除く、前記金属端子の一部とを、樹脂で埋設して外装体を形成する工程と、
前記第１のコイルおよび前記第２のコイルに直交するように、前記外装体の外周に第３のコイルを巻回する工程と、
前記第３のコイルの端末を、前記外装体から露出する絡げ部に接続する工程と、
からなることを特徴とする３軸アンテナコイルの製造方法。 Arranging a plurality of metal terminals having one or more binding portions on the core; and
Winding the first coil and the second coil around the core so as to be orthogonal to each other;
Binding both ends of the first coil and the second coil to the binding portion of the metal terminal;
The linking portion including the core and a binding portion to which the terminals of the first coil and the second coil are connected, and the binding portion to which neither of the first coil and the terminal of the second coil is connected A step of embedding a part of the metal terminal with a resin to form an exterior body;
Winding a third coil around the outer periphery of the exterior body so as to be orthogonal to the first coil and the second coil;
Connecting the terminal of the third coil to the binding portion exposed from the exterior body;
A method for manufacturing a three-axis antenna coil, comprising: 前記外装体は、上鍔と下鍔が設けられ、
前記第３のコイルは、前記上鍔と前記下鍔との間に巻回されている
請求項１０に記載の３軸アンテナコイルの製造方法。 The exterior body is provided with an upper collar and a lower collar,
The method for manufacturing a three-axis antenna coil according to claim 10, wherein the third coil is wound between the upper arm and the lower arm. 前記第１のコイルおよび前記第２のコイルの端末が接続されていない前記金属端子の絡げ部は、前記下鍔の外周から露出する
請求項１１に記載の３軸アンテナコイルの製造方法。 The method of manufacturing a triaxial antenna coil according to claim 11, wherein a binding portion of the metal terminal to which ends of the first coil and the second coil are not connected is exposed from an outer periphery of the lower arm.
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