JP2011259311A - Loop antenna - Google Patents

Loop antenna Download PDF

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Publication number
JP2011259311A
JP2011259311A JP2010133233A JP2010133233A JP2011259311A JP 2011259311 A JP2011259311 A JP 2011259311A JP 2010133233 A JP2010133233 A JP 2010133233A JP 2010133233 A JP2010133233 A JP 2010133233A JP 2011259311 A JP2011259311 A JP 2011259311A
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Prior art keywords
terminal
electric wire
loop antenna
housing
wires
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JP2010133233A
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JP5616132B2 (en
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Takeshi Kimura
毅 木村
Tomohiro Taguchi
智宏 田口
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Tyco Electronics Japan GK
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Tyco Electronics Japan GK
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Priority to JP2010133233A priority Critical patent/JP5616132B2/en
Priority to KR1020110050758A priority patent/KR20110135335A/en
Priority to TW100210429U priority patent/TWM429186U/en
Priority to CN201110173503.5A priority patent/CN102394373B/en
Publication of JP2011259311A publication Critical patent/JP2011259311A/en
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Publication of JP5616132B2 publication Critical patent/JP5616132B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Abstract

PROBLEM TO BE SOLVED: To provide a loop antenna capable of performing alignment of an electric wire and an electric wire connection part easily and capable of reducing the size.SOLUTION: A loop antenna 1 comprises: a plurality of electric wires 10 which constitute an antenna element; an insulating housing 20; a first terminal 30 connecting the plurality of electric wires 10 in series respectively; and a pair of second terminals 40 where both ends of the plurality of electric wires 10, which are connected in series respectively, are connected respectively. An electric wire connection part 32 of the first terminal 30 and an electric wire connection part 41 of the second terminals 40 are formed in an approximately flat form. Guide grooves 23 which guide the tip part of the plurality of electric wires 10 to the electric wire connection part 32 of the first terminal 30 are provided in the housing 20 or the first terminal 30. Guide grooves 24 which guide the both ends of the plurality of electric wires 10, which are connected in series respectively, to the electric wire connection part 41 of the second terminals 40 are provided in the housing 20 or the second terminals 40.

Description

本発明は、ループアンテナ、特に、ＲＦＩＤ（Ｒａｄｉｏ Ｆｒｅｑｕｅｎｃｙ Ｉｄｅｎｔｉｆｉｃａｔｉｏｎ）の送受信に用いられる巻線型のループアンテナに関する。   The present invention relates to a loop antenna, and more particularly, to a wound loop antenna used for transmission / reception of RFID (Radio Frequency Identification).

ＲＦＩＤ等、無線によって信号をやりとりする機器（例えば、無線タグ等）にループアンテナが用いられている。
ループアンテナは、その構造によってＦＰＣ等を用いた平面型と巻線型とに大別される。
平面型のループアンテナが用いられる典型例としては、交通機関の乗車券等として用いられるＩＣカードがある。 Loop antennas are used in devices such as RFID that exchange signals wirelessly (for example, wireless tags).
The loop antenna is roughly classified into a planar type using a FPC or the like and a winding type depending on its structure.
A typical example of using a planar loop antenna is an IC card used as a transportation ticket or the like.

一方、巻線型ループアンテナが用いられる典型例としては、その製造コストが安価である等の理由により、ＲＦＩＤ機能を持つ携帯電話機等の電子機器に用いられている。
この巻線型ループアンテナとして、従来、例えば、図７に示すものが知られている（特許文献１参照）。
図７に示すループアンテナ１０１は、３重のループアンテナの各ループ素子を構成する３本の電線１１０（１１０ａ，１１０ｂ，１１０ｃ）と、ＲＦＩＤ機能を持つ携帯電話機等の電子機器の筐体（図示せず）内部に実装される絶縁性のハウジング１２０とを備えている。また、ループアンテナ１０１は、それぞれ２本の電線１０を互いに直列に接続する２つの第１圧接端子１３０と、電線１０の一端に接続される１対の第２圧接端子１４０とを備えている。 On the other hand, a typical example in which a wound loop antenna is used is used in an electronic device such as a mobile phone having an RFID function because of its low manufacturing cost.
Conventionally, for example, the winding loop antenna shown in FIG. 7 is known (see Patent Document 1).
A loop antenna 101 shown in FIG. 7 includes three electric wires 110 (110a, 110b, 110c) constituting each loop element of a triple loop antenna, and a casing of an electronic device such as a mobile phone having an RFID function (see FIG. 7). (Not shown) and an insulating housing 120 mounted inside. The loop antenna 101 includes two first press contact terminals 130 that connect two electric wires 10 in series with each other, and a pair of second press contact terminals 140 that are connected to one end of the electric wire 10.

ここで、各第１圧接端子１３０は、ハウジング１２０に設けられた第１案内溝（図示せず）に圧入される第１圧接部１３１と、当該ハウジング１２０に設けられた第２案内溝（図示せず）に圧入される第２圧接部１３２と、第１圧接部１３１及び第２圧接部１３２をつなぐブリッジ部１３３とを備えている。第１圧接部１３１は、第１案内溝の底面に配置される底板（図示せず）と、底板から立ち上がる２対の圧接刃１３４とを備えている。また、第２圧接部１３２は、第２案内溝の底面に配置される底板（図示せず）と、底板から立ち上がる２対の圧接刃１３５とを備えている。   Here, each first press contact terminal 130 includes a first press contact portion 131 press-fitted into a first guide groove (not shown) provided in the housing 120 and a second guide groove provided in the housing 120 (see FIG. A second press-contact portion 132 that is press-fitted into the first press-contact portion 131, and a bridge portion 133 that connects the first press-contact portion 131 and the second press-contact portion 132. The first press contact portion 131 includes a bottom plate (not shown) disposed on the bottom surface of the first guide groove and two pairs of press contact blades 134 rising from the bottom plate. The second press contact portion 132 includes a bottom plate (not shown) disposed on the bottom surface of the second guide groove and two pairs of press contact blades 135 rising from the bottom plate.

そして、一方の第１圧接端子１３０（図７における上側の第１圧接端子）の第１圧接部１３１には、電線１１０ｃの他端部が圧接接続され、また、第２圧接部１３２には、電線１１０ａの一端部が圧接接続される。また、他方の第１圧接端子１３０（図７における下側の第１圧接端子）の第１圧接部１３１には、電線１１０ａの他端部が圧接接側され、また、第２圧接部１３２には、電線１１０ｂの一端部が圧接接続される。   The other end of the electric wire 110c is press-connected to the first press-contact portion 131 of one of the first press-contact terminals 130 (the upper first press-contact terminal in FIG. 7), and the second press-contact portion 132 is One end of the electric wire 110a is press-connected. Further, the other end of the electric wire 110a is pressed against the first press contact portion 131 of the other first press contact terminal 130 (the lower first press contact terminal in FIG. 7), and the second press contact portion 132 is connected to the second press contact portion 132. The one end of the electric wire 110b is press-connected.

また、１対の第２圧接端子１４０のうち一方の第２圧接端子１４０は、前記第１案内溝に圧入される圧接部１４１と、外部端子部１４３とを備えている。また、他方の第２圧接端子１４０は、前記第２案内溝に圧入される圧接部１４１と、外部端子部１４３とを備えている。そして、各圧接部１４１は、底板（図示せず）と底板から立ち上がる２対の圧接刃１４２とを備えている。一方の第２圧接端子１４０の圧接部１４１には、電線１１０ｂの他端部が圧接接続され、他方の第２圧接端子１４０の圧接部１４１には、電線１１０ｃの一端部が圧接接続される。
この図７に示したループアンテナ１０１によれば、各電線１１０（１１０ａ，１１０ｂ，１１０ｃ）の先端を各案内溝の壁面に付き当てた状態で各圧接部に圧接接続するので、各電線の１１０のループ長のばらつきを小さくすることができる。 In addition, one second pressure contact terminal 140 of the pair of second pressure contact terminals 140 includes a pressure contact portion 141 that is press-fitted into the first guide groove, and an external terminal portion 143. The other second pressure contact terminal 140 includes a pressure contact portion 141 that is press-fitted into the second guide groove, and an external terminal portion 143. Each press contact portion 141 includes a bottom plate (not shown) and two pairs of press contact blades 142 rising from the bottom plate. The other end portion of the electric wire 110b is press-connected to the press-contact portion 141 of one second press-contact terminal 140, and one end portion of the electric wire 110c is press-connected to the press-contact portion 141 of the other second press-contact terminal 140.
According to the loop antenna 101 shown in FIG. 7, since the tip of each electric wire 110 (110a, 110b, 110c) is pressed against each pressure contact portion in a state where the tip of the electric wire 110 (110a, 110b, 110c) is in contact with the wall surface of each guide groove, The variation in the loop length can be reduced.

また、巻線型ループアンテナの他の従来例として、図８に示すものも知られている（図８参照）。
図８に示すループアンテナ２０１は、図８（Ａ）に示すように、３重のループアンテナの各ループ素子を構成する３本の電線２１０を備えている。各電線２１０は、図８（Ｂ）に示すように、導体２１１に樹脂２１２を被覆してなる。３本の電線２１０は、外被２１３で覆われて集合電線２１４を構成する。 Further, another conventional example of a wound loop antenna is shown in FIG. 8 (see FIG. 8).
As shown in FIG. 8A, the loop antenna 201 shown in FIG. 8 includes three electric wires 210 that constitute each loop element of the triple loop antenna. As shown in FIG. 8B, each electric wire 210 is formed by covering a conductor 211 with a resin 212. The three electric wires 210 are covered with an outer sheath 213 to form a collective electric wire 214.

また、ループアンテナ２０１は、集合電線２１４の両端部において、各電線２１０の端部が電気的に接続される端子部２２１を一面の両端に備えた基板２２０を備えている。基板２２０の他面には、一端の端子部２２１に接続された電線２１０の一端と、他端の端子部２２１に接続された電線２１０の他端とを電気的に接続し、接続された電線２１０が一連をなし、かつ環状のコイルとなるような配線パターン（図示せず）が形成されている。なお、端子部２２１と各電線２１０の導体２１１とは、半田により接続することが好適とされている。   In addition, the loop antenna 201 includes a substrate 220 provided with terminal portions 221 at both ends of one surface, to which both ends of the electric wires 210 are electrically connected, at both ends of the collective wire 214. The other surface of the substrate 220 is electrically connected to one end of the electric wire 210 connected to the terminal portion 221 at one end and the other end of the electric wire 210 connected to the terminal portion 221 at the other end. A wiring pattern (not shown) is formed so that 210 forms a series and becomes an annular coil. It is preferable that the terminal portion 221 and the conductor 211 of each electric wire 210 are connected by solder.

特開２００９−６０５１９号公報JP 2009-60519 A 特開２００９−１００１８８号公報JP 2009-1001888 A

しかしながら、これら図７に示したループアンテナ１０１及び図８に示したループアンテナ２０１にあっては、以下の問題点があった。
即ち、図７に示したループアンテナ１０１の場合、第１圧接端子１３０及び第２圧接端子１４０といった圧接端子を利用しているため、薄型（例えば、１．４５ｍｍ以下の高さ、この１．４５ｍｍは電線の外径に対応する高さ）にすることが困難である。巻線型ループアンテナを用いるＲＦＩＤ機能を持つ携帯電話機等の電子機器においては、近年、ループアンテナの薄型化の要請が多い。 However, the loop antenna 101 shown in FIG. 7 and the loop antenna 201 shown in FIG. 8 have the following problems.
That is, in the case of the loop antenna 101 shown in FIG. 7, since the press contact terminals such as the first press contact terminal 130 and the second press contact terminal 140 are used, it is thin (for example, a height of 1.45 mm or less, this 1.45 mm). It is difficult to make the height corresponding to the outer diameter of the wire. In recent years, electronic devices such as mobile phones having an RFID function using a wound loop antenna have been demanded to make the loop antenna thinner.

また、図８に示すループアンテナ２０１の場合、各電線２１０の導体２１１を端子部２２１に接続する際に、導体２１１を端子部２２１に整列させるのが容易ではなく、導体２１１の整列作業性に問題がある。
従って、本発明は、上述の問題点を解決するためになされたものであり、その目的は、電線及び電線接続部の整列が容易にできるとともに、薄型化を可能としたループアンテナを提供することにある。 Further, in the case of the loop antenna 201 shown in FIG. 8, when connecting the conductor 211 of each electric wire 210 to the terminal portion 221, it is not easy to align the conductor 211 with the terminal portion 221. There's a problem.
Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a loop antenna that can facilitate the alignment of electric wires and electric wire connecting portions and can be thinned. It is in.

上記目的を達成するために、本発明のうち請求項１に係るループアンテナは、アンテナ素子を構成する複数本の電線と、絶縁性のハウジングと、該ハウジングに取り付けられ、前記複数本の電線を互いに直列に接続する第１端子と、前記ハウジングに取付けられ、互いに直列に接続された前記複数本の電線の両端がそれぞれ接続される１対の第２端子とを備えたループアンテナであって、前記第１端子の電線接続部及び前記第２端子の電線接続部が略平坦形状に形成されるともに、前記複数本の電線の先端部を前記第１端子の電線接続部に案内する案内溝を前記ハウジング又は前記第１端子に設け、互いに直列に接続された前記複数本の電線の両端部を前記第２端子の電線接続部に案内する案内溝を前記ハウジング又は前記第２端子に設けたことを特徴としている。ここで、「略平坦形状」とは、電線接続部に電線の芯線が載置された際に、電線接続部のいかなる部分も当該芯線の高さよりも低いことを意味するので、例えば若干湾曲した部分を有するものも含まれる。   In order to achieve the above object, a loop antenna according to a first aspect of the present invention includes a plurality of electric wires constituting an antenna element, an insulating housing, and the plurality of electric wires attached to the housing. A loop antenna comprising a first terminal connected in series with each other, and a pair of second terminals attached to the housing and connected to each other at both ends of the plurality of wires connected in series, The wire connecting portion of the first terminal and the wire connecting portion of the second terminal are formed in a substantially flat shape, and a guide groove for guiding the tip end portions of the plurality of wires to the wire connecting portion of the first terminal is provided. Guide grooves provided in the housing or the first terminal and guiding both ends of the plurality of electric wires connected in series to the electric wire connection portion of the second terminal are provided in the housing or the second terminal. It is characterized by a door. Here, the “substantially flat shape” means that when the core wire of the electric wire is placed on the electric wire connecting portion, any portion of the electric wire connecting portion is lower than the height of the core wire, and thus, for example, a slight curve Those having a portion are also included.

また、本発明のうち請求項２に係るループアンテナは、請求項１記載のループアンテナにおいて、前記複数本の電線の先端部は前記第１端子の電線接続部に半田接続、レーザ溶接接続、又は超音波融着接続されると共に、互いに直列に接続された前記複数本の電線の両端部は前記第２端子の電線接続部に半田接続、レーザ溶接接続、又は超音波融着接続されることを特徴としている。
また、本発明のうち請求項３に係るループアンテナは、請求項１又は２記載のループアンテナにおいて、前記ハウジングが、前記第１端子の電線接続部及び前記第２端子の電線接続部の周囲に壁を有することを特徴としている。 The loop antenna according to claim 2 of the present invention is the loop antenna according to claim 1, wherein the tip ends of the plurality of wires are soldered, laser welded, or connected to the wire connecting portion of the first terminal. Both ends of the plurality of electric wires connected in series with each other by ultrasonic fusion connection are connected by soldering, laser welding, or ultrasonic fusion connection to the electric wire connection portion of the second terminal. It is a feature.
According to a third aspect of the present invention, the loop antenna according to the first or second aspect is the loop antenna according to the first or second aspect, wherein the housing is disposed around the electric wire connecting portion of the first terminal and the electric wire connecting portion of the second terminal. It is characterized by having a wall.

また、本発明のうち請求項４に係るループアンテナは、請求項１乃至３のうちいずれか一項に記載のループアンテナにおいて、前記ハウジングが、前記第２端子の外部端子部の周囲に、該外部端子部の表層部よりも高い壁部を有することを特徴としている。
更に、本発明のうち請求項５に係るループアンテナは、請求項１乃至４のうちいずれか一項に記載のループアンテナにおいて、前記第２端子の外部端子部が、ばね端子部であることを特徴としている。 A loop antenna according to a fourth aspect of the present invention is the loop antenna according to any one of the first to third aspects, wherein the housing is disposed around the external terminal portion of the second terminal. It has the wall part higher than the surface layer part of an external terminal part, It is characterized by the above-mentioned.
Furthermore, the loop antenna according to claim 5 of the present invention is the loop antenna according to any one of claims 1 to 4, wherein the external terminal portion of the second terminal is a spring terminal portion. It is a feature.

本発明に係るループアンテナによれば、第１端子の電線接続部及び第２端子の電線接続部が略平坦形状に形成されるので、ループアンテナの薄型化を可能とすることができる。また、複数本の電線の先端部を第１端子の電線接続部に案内する案内溝をハウジング又は第１端子に設け、互いに直列に接続された複数本の電線の両端部を第２端子の電線接続部に案内する案内溝をハウジング又は第２端子に設けたので、電線を電線接続部に整列させるのを容易に行え、製造工程を簡略化することができる。   According to the loop antenna according to the present invention, since the wire connecting portion of the first terminal and the wire connecting portion of the second terminal are formed in a substantially flat shape, the loop antenna can be made thin. Also, a guide groove for guiding the tip of the plurality of wires to the wire connecting portion of the first terminal is provided in the housing or the first terminal, and both ends of the plurality of wires connected in series with each other are connected to the second terminal wire. Since the guide groove for guiding to the connecting portion is provided in the housing or the second terminal, the electric wires can be easily aligned with the electric wire connecting portion, and the manufacturing process can be simplified.

本発明に係るループアンテナの第１実施形態を示し、（Ａ）は斜視図、（Ｂ）は（Ａ）の矢印１Ｂ部分の拡大図である。The 1st Embodiment of the loop antenna which concerns on this invention is shown, (A) is a perspective view, (B) is an enlarged view of the arrow 1B part of (A). 図１に示すループアンテナにおいて、電線接続部を接着剤で覆う前の状態を示し、（Ａ）は斜視図、（Ｂ）は（Ａ）の矢印２Ｂ部分の斜視図である。In the loop antenna shown in FIG. 1, the state before covering an electric wire connection part with an adhesive agent is shown, (A) is a perspective view, (B) is a perspective view of an arrow 2B portion of (A). 図２に示す状態のループアンテナの平面図である。It is a top view of the loop antenna of the state shown in FIG. 本発明に係るループアンテナの第２実施形態を示し、（Ａ）は電線接続部を接着剤で覆う前の状態の斜視図、（Ｂ）は（Ａ）の矢印４Ｂ部分の拡大図である。2nd Embodiment of the loop antenna which concerns on this invention is shown, (A) is a perspective view of the state before covering an electric wire connection part with an adhesive agent, (B) is an enlarged view of the arrow 4B part of (A). 図４に示すループアンテナにおいて、マスキングテープを貼着した場合の断面図である。FIG. 5 is a cross-sectional view when a masking tape is attached to the loop antenna shown in FIG. 4. 本発明に係るループアンテナの第３実施形態を示し、（Ａ）は斜視図、（Ｂ）は（Ａ）の矢印６Ｂ部分の拡大図である。3rd Embodiment of the loop antenna which concerns on this invention is shown, (A) is a perspective view, (B) is an enlarged view of the arrow 6B part of (A). 従来例のループアンテナの平面図である。It is a top view of the loop antenna of a prior art example. 従来の他の例のループアンテナを示し、（Ａ）は平面図、（Ｂ）は（Ａ）の８Ｂ−８Ｂ線に沿う断面図である。The loop antenna of the other conventional example is shown, (A) is a top view, (B) is sectional drawing which follows the 8B-8B line | wire of (A).

以下、本発明の実施の形態を図面を参照して説明する。図１乃至図３は本発明に係るループアンテナの第１実施形態を示している。
図１乃至図３に示すループアンテナ１は、ＲＦＩＤ機能を有する携帯電話機に好適なループアンテナとして構成されている。
このループアンテナ１は、３重のループアンテナの各アンテナ素子を構成する３本の電線１０（１０ａ，１０ｂ，１０ｃ）と、ＲＦＩＤ機能を有する携帯電話機の筐体（図示せず）の内部に実装される絶縁性のハウジング２０とを備えている。また、ループアンテンナ１は、それぞれ２本の電線１０を互いに直列に接続する２つの第１端子３０と、電線１０の一端に接続される１対の第２端子４０とを備えている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of a loop antenna according to the present invention.
The loop antenna 1 shown in FIGS. 1 to 3 is configured as a loop antenna suitable for a mobile phone having an RFID function.
This loop antenna 1 is mounted inside three electric wires 10 (10a, 10b, 10c) constituting each antenna element of a triple loop antenna and a casing (not shown) of a mobile phone having an RFID function. And an insulative housing 20. The loop antenna 1 includes two first terminals 30 that connect two electric wires 10 in series with each other, and a pair of second terminals 40 that are connected to one end of the electric wires 10.

各電線１０は、図２（Ｂ）に示すように、芯線１１の周囲に被覆１２を設けてなり、芯線１１は銅線等が用いられる。３本の電線１０は、３重ループ状に互いに直列に接続され、３重のループアンテナを構成する。各電線１０は、ループアンテナ１が使用される周波数に応じた長さに予め正確に備えられている。また、３本の電線１０は、１本のケーブルとして構成されている。なお、３本の電線１０として、ばらばらの電線１０を用いてもよい。   As shown in FIG. 2B, each electric wire 10 is provided with a coating 12 around the core wire 11, and the core wire 11 is made of a copper wire or the like. The three electric wires 10 are connected in series in a triple loop shape to constitute a triple loop antenna. Each electric wire 10 is accurately provided in advance with a length corresponding to the frequency at which the loop antenna 1 is used. Moreover, the three electric wires 10 are comprised as one cable. In addition, as the three electric wires 10, separate electric wires 10 may be used.

ハウジング２０は、絶縁性の樹脂を成形することによって一体的に形成されている。ハウジング２０は、図２（Ｂ）及び図３に示すように、２つの第１端子３０と１対の第２端子４０それぞれの電線接続部４１とが配置される第１ハウジング部２１と、１対の第２端子それぞれの外部端子部４３が配置される第２ハウジング部２２とを備えている。第１ハウジング部２１及び第２ハウジング部２２は、ほぼ同一の板厚でそれぞれ矩形形状に形成されている。   The housing 20 is integrally formed by molding an insulating resin. As shown in FIGS. 2B and 3, the housing 20 includes a first housing portion 21 in which two first terminals 30 and a wire connecting portion 41 of each of the pair of second terminals 40 are disposed, and 1 And a second housing part 22 in which the external terminal parts 43 of the respective second terminals are arranged. The first housing part 21 and the second housing part 22 are each formed in a rectangular shape with substantially the same plate thickness.

２つの第１端子３０は、図３に示すように、ハウジング２０の第１ハウジング部２１において、前側（図３における下側）と後側に互いに平行になるようにそれぞれ配置される。各第１端子３０は、図２（Ｂ）及び図３に示すように、前後方向に直交する左右方向（図３における左右方向）に細長く延びる基部３１と、基部３１の左右両端に設けられた１対の電線接続部３２とを備えている。各第１端子３０は、銅合金等の金属板を打抜き加工することによって形成される。各第１端子３０は、左右方向に細長い矩形形状板で、基部３１と電線接続部３２とが直線状に連続するように形成されている。各第１端子３０は、ハウジング２０の第１ハウジング部２１にインサート成形することによって固定される。   As shown in FIG. 3, the two first terminals 30 are arranged in the first housing portion 21 of the housing 20 so as to be parallel to each other on the front side (lower side in FIG. 3) and the rear side. As shown in FIGS. 2B and 3, each first terminal 30 is provided at a base portion 31 elongated in the left-right direction (left-right direction in FIG. 3) orthogonal to the front-rear direction, and at both left and right ends of the base portion 31. And a pair of electric wire connection portions 32. Each first terminal 30 is formed by punching a metal plate such as a copper alloy. Each first terminal 30 is a rectangular plate elongated in the left-right direction, and is formed such that the base portion 31 and the wire connection portion 32 are linearly continuous. Each first terminal 30 is fixed to the first housing portion 21 of the housing 20 by insert molding.

ここで、各第１端子３０の電線接続部３２は、表面が第１ハウジング部２１から露出しており、略平坦形状に形成されている。ここで、「略平坦形状」とは、電線接続部３２に電線１０の芯線１１が載置された際に、電線接続部３２のいかなる部分も当該芯線１１の高さよりも低いことを意味する。「略平坦形状」には、完全に平坦なもののみならず、若干湾曲した部分を有するものも含まれる。   Here, the surface of the electric wire connection portion 32 of each first terminal 30 is exposed from the first housing portion 21 and is formed in a substantially flat shape. Here, “substantially flat shape” means that any portion of the wire connection portion 32 is lower than the height of the core wire 11 when the core wire 11 of the wire 10 is placed on the wire connection portion 32. The “substantially flat shape” includes not only a completely flat shape but also a shape having a slightly curved portion.

また、１対の第２端子４０の各々は、図２（Ｂ）及び図３に示すように、左右方向に細長く延びる電線接続部４１と、前後方向及び左右方向に幅広く延びた矩形形状の外部端子部４３と、電線接続部４１と外部端子部４３とを連結する連結部４２とを備えている。各第２端子４０は、銅合金等の金属板を打抜き及び曲げ加工することによって形成される。１対の第２端子４０は、それぞれの電線接続部４１が第１ハウジング部２１において前側の第１端子３０よりも前側でかつ互いに左右方向に対向するように、それぞれの外部端子部４３が第２ハウジング部２２において互いに左右方向に対向するように配置される。各第２端子４０は、第１ハウジング部２１及び第２ハウジング部２２にインサート成形することによって固定される。
各第２端子４０の電線接続部４１は、表面が第１ハウジング部２１から露出しており、略平坦形状に形成されている。この「略平坦形状」の意味は、第１端子３０の電線接続部３２と同様である。 Each of the pair of second terminals 40 includes, as shown in FIGS. 2B and 3, an electric wire connection portion 41 that is elongated in the left-right direction, and a rectangular external portion that extends widely in the front-rear direction and the left-right direction. The terminal part 43 and the connection part 42 which connects the electric wire connection part 41 and the external terminal part 43 are provided. Each second terminal 40 is formed by punching and bending a metal plate such as a copper alloy. The pair of second terminals 40 has their respective external terminal portions 43 in the first housing portion 21 such that the respective external terminal portions 43 are opposed to each other in the left-right direction on the front side of the front side first terminal 30 in the first housing portion 21. The two housing parts 22 are arranged so as to face each other in the left-right direction. Each second terminal 40 is fixed to the first housing part 21 and the second housing part 22 by insert molding.
The electric wire connection portion 41 of each second terminal 40 has a surface exposed from the first housing portion 21 and has a substantially flat shape. The meaning of the “substantially flat shape” is the same as that of the wire connection portion 32 of the first terminal 30.

そして、図２（Ｂ）及び図３に示すように、後側の第１端子３０の左端側の電線接続部３２には、電線１０ａの一端部が半田１３により接続され、また、右端側の電線接続部３２には、電線１０ｃの他端部が半田１３により接続される。また、前側の第１端子３０の左端側の電線接続部３２には、電線１０ｂの一端部が半田１３により接続され、右端側の電線接続部３２には、電線１０ａの他端部が半田１３により接続される。更に、１対の第２端子４０のうち左側の第２端子４０の電線接続部４１には、電線１０ｃの一端部が半田１３により接続され、右側の第２端子４０の電線接続部４１には、電線１０ｂの他端部が半田１３により接続される。また、各第２端子４０の外部端子部４３は、相手基板の接点に押し付けられて電気的接続をなすようになっている。   As shown in FIGS. 2B and 3, one end of the electric wire 10 a is connected to the left end side electric wire connecting portion 32 of the first terminal 30 on the rear side by the solder 13, and the right end side is also connected. The other end portion of the electric wire 10 c is connected to the electric wire connecting portion 32 by the solder 13. Further, one end of the electric wire 10b is connected to the left-side wire connecting portion 32 of the first terminal 30 on the front side by the solder 13, and the other end portion of the electric wire 10a is connected to the right-side electric wire connecting portion 32 by the solder 13. Connected by Furthermore, one end of the electric wire 10c is connected to the electric wire connecting portion 41 of the second terminal 40 on the left side of the pair of second terminals 40 by the solder 13, and the electric wire connecting portion 41 of the right second terminal 40 is connected to the electric wire connecting portion 41 of the right second terminal 40. The other end of the electric wire 10b is connected by the solder 13. Further, the external terminal portion 43 of each second terminal 40 is pressed against the contact of the mating substrate to make electrical connection.

ここで、ハウジング２０の第１ハウジング部２１には、図２（Ｂ）及び図３に示すように、３本の電線１０の先端部、即ち、電線１０ａの一端部及び他端部、電線１０ｂの一端部、及び電線１０ｃの他端部を第１端子３０の電線接続部３２に案内する４つの案内溝２３が設けられている。４つの案内溝２３は、後側第１端子３０の左右両側の電線接続部３２の左右外側及び前側第１端子３０の左右両側の電線接続部の左右外側であって第１ハウジング部２１の左右側縁から連続するように設けられる。各案内溝２３は、第１ハウジング部２１の表面から立ち上がる１対の側壁２５ａ，２５ｂ間に形成される。各案内溝２３の幅は、３本の電線１０の芯線１１の先端部がそれぞれ電線接続部３２に半田接続される際に、各電線１０の被覆１２を前後両側から案内して当該先端部が各電線接続部３２上に位置する幅に設定される。   Here, as shown in FIG. 2B and FIG. 3, the first housing portion 21 of the housing 20 includes the tip portions of the three electric wires 10, that is, one end portion and the other end portion of the electric wire 10 a, and the electric wire 10 b. The four guide grooves 23 are provided for guiding the one end portion of the wire 10 and the other end portion of the electric wire 10 c to the wire connecting portion 32 of the first terminal 30. The four guide grooves 23 are on the left and right outer sides of the right and left electric wire connection portions 32 of the rear first terminal 30 and on the left and right outer sides of the left and right electric wire connection portions of the front first terminal 30 and on the left and right sides of the first housing portion 21. It is provided so as to be continuous from the side edge. Each guide groove 23 is formed between a pair of side walls 25 a and 25 b rising from the surface of the first housing portion 21. The width of each guide groove 23 is such that when the tip end portions of the core wires 11 of the three electric wires 10 are soldered to the wire connecting portions 32 respectively, the tip end portions It is set to a width located on each electric wire connection portion 32.

また、ハウジング２０の第１ハウジング部２１には、図２（Ｂ）及び図３に示すように、互いに直列に接続された２本の電線１０の両端部、即ち、電線１０ｃの一端部及び電線１０ｂの他端部を第２端子４０の電線接続部４１に案内する２つ案内溝２４が設けられている。２つの案内溝２４は、１対の第２端子４０の電線接続部４１の左右両側であって第１ハウジング部２１の左右側縁から連続するように設けられる。各案内溝２４は、案内溝２３と同様に、第１ハウジング部２１の表面から立ち上がる１対の側壁２５ａ，２５ｂ間に形成される。各案内溝２４の幅は、互いに直列に接続された２本の電線１０の芯線１１の両端部がそれぞれ電線接続部４１に半田接続される際に、各電線１０の被覆１２を前後両側から案内して当該両端部が各電線接続部４１上に位置する幅に設定される。   Further, as shown in FIGS. 2B and 3, the first housing portion 21 of the housing 20 has both ends of two wires 10 connected in series, that is, one end of the wire 10c and the wire. Two guide grooves 24 are provided to guide the other end of 10 b to the wire connecting portion 41 of the second terminal 40. The two guide grooves 24 are provided so as to be continuous from the left and right side edges of the first housing portion 21 on the left and right sides of the wire connection portion 41 of the pair of second terminals 40. Each guide groove 24 is formed between a pair of side walls 25 a and 25 b rising from the surface of the first housing portion 21, similarly to the guide groove 23. The width of each guide groove 24 is such that when both end portions of the core wire 11 of the two electric wires 10 connected in series are soldered to the electric wire connection portion 41, the coating 12 of each electric wire 10 is guided from both the front and rear sides. Then, the both end portions are set to a width located on each electric wire connecting portion 41.

更に、ハウジング２０の第１ハウジング部２１には、４つの第１端子３０の電線接続部３２及び１対の第２端子４０の電線接続部４１の周囲を囲う壁２６が設けられている。この壁２６は、矩形形状に形成された第１ハウジング部２１の表面外縁から立ちあがって矩形状をなしている。壁２６には、４つの案内溝２３及び２つの案内溝２４と連通する切欠きが形成され、各電線１０の被覆１２が挿通できるようになっている。この壁２６は、後述するように、第１ハウジング部２１に接着剤５０を塗布して各電線接続部３２，４１を覆うときに、接着剤５０の外部端子部４３への流れ込みを阻止する機能を有する。   Furthermore, the first housing portion 21 of the housing 20 is provided with a wall 26 that surrounds the wire connection portions 32 of the four first terminals 30 and the wire connection portions 41 of the pair of second terminals 40. The wall 26 has a rectangular shape that rises from the outer surface edge of the first housing portion 21 that is formed in a rectangular shape. The wall 26 is formed with notches communicating with the four guide grooves 23 and the two guide grooves 24 so that the covering 12 of each electric wire 10 can be inserted therethrough. As will be described later, the wall 26 functions to prevent the adhesive 50 from flowing into the external terminal portion 43 when the first housing portion 21 is coated with the adhesive 50 to cover the wire connecting portions 32 and 41. Have

次に、ループアンテナ１の組立方法について説明する。
先ず、第１端子３０及び第２端子４０をハウジング２０に取り付けた状態で、各電線１０を半田接続するのに先立ち、第２ハウジング部２２に配置されている各第２端子４０の外部端子部４３をマスキングテープ（図示せず）で覆う。これにより、各外部端子部４３を保護し、半田接続時に半田フラックスが外部端子部４３に飛び散るのを阻止する。 Next, a method for assembling the loop antenna 1 will be described.
First, in a state where the first terminal 30 and the second terminal 40 are attached to the housing 20, the external terminal portions of the second terminals 40 arranged in the second housing portion 22 prior to soldering the electric wires 10. 43 is covered with a masking tape (not shown). Thereby, each external terminal part 43 is protected and it prevents that solder flux scatters to the external terminal part 43 at the time of solder connection.

次いで、図２（Ｂ）に示すように、後側の第１端子３０の左端側の電線接続部３２に、電線１０ａの一端部を半田１３により接続し、また、右端側の電線接続部３２に、電線１０ｃの他端部を半田１３により接続する。また、前側の第１端子３０の左端側の電線接続部３２に、電線１０ｂの一端部を半田１３により接続し、右端側の電線接続部３２に、電線１０ａの他端部を半田１３により接続する。更に、１対の第２端子４０のうち左側の第２端子４０の電線接続部４１に、電線１０ｃの一端部を半田１３により接続し、右側の第２端子４０の電線接続部４１に、電線１０ｂの他端部を半田１３により接続する。これにより、３本の電線１０（１０ａ，１０ｂ，１０ｃ）が、３重ループ状に互いに直列に接続され、３重のループアンテナが構成される。   Next, as shown in FIG. 2B, one end of the electric wire 10a is connected to the electric wire connecting portion 32 on the left end side of the first terminal 30 on the rear side by the solder 13, and the electric wire connecting portion 32 on the right end side. The other end of the electric wire 10 c is connected by the solder 13. In addition, one end of the electric wire 10b is connected to the left-side wire connecting portion 32 of the front first terminal 30 by the solder 13, and the other end of the electric wire 10a is connected to the right-side electric wire connecting portion 32 by the solder 13. To do. Further, one end of the electric wire 10c is connected to the electric wire connection portion 41 of the second terminal 40 on the left side of the pair of second terminals 40 by the solder 13, and the electric wire connection portion 41 of the second terminal 40 on the right side is connected to the electric wire connection portion 41. The other end of 10 b is connected by solder 13. As a result, the three electric wires 10 (10a, 10b, 10c) are connected in series in a triple loop shape to form a triple loop antenna.

ここで、電線１０ａの一端部及び他端部、電線１０ｂの一端部、及び電線１０ｃの他端部を第１端子３０の電線接続部３２に半田接続する際には、作業者は、各電線１０（１０ａ，１０ｂ，１０ｃ）の被覆１２を各案内溝２３に位置させる。このとき、各案内部２３が、各電線１０（１０ａ，１０ｂ，１０ｃ）の被覆１２を前後両側から案内して電線１０ａの一端部及び他端部、電線１０ｂの一端部、及び電線１０ｃの他端部を第１端子３０の電線接続部３２上に案内する。このため、３本の電線１０（１０ａ，１０ｂ，１０ｃ）の先端部を電線接続部３２に整列させるのを容易に行うことができる。よって、各電線１０（１０ａ，１０ｂ，１０ｃ）の先端部の整列作業が簡易となり、製造工程を簡略化することができる。   Here, when one end and the other end of the electric wire 10a, one end of the electric wire 10b, and the other end of the electric wire 10c are solder-connected to the electric wire connection portion 32 of the first terminal 30, the operator Ten (10a, 10b, 10c) coatings 12 are positioned in the respective guide grooves 23. At this time, each guide part 23 guides the coating 12 of each electric wire 10 (10a, 10b, 10c) from both the front and rear sides, and one end and the other end of the electric wire 10a, one end of the electric wire 10b, and the other of the electric wire 10c. The end portion is guided onto the wire connection portion 32 of the first terminal 30. For this reason, it is possible to easily align the tip portions of the three electric wires 10 (10a, 10b, 10c) with the electric wire connection portion 32. Therefore, the work of aligning the tips of the electric wires 10 (10a, 10b, 10c) is simplified, and the manufacturing process can be simplified.

また、電線１０ｃの一端部及び電線１０ｂの他端部を第２端子４０の電線接続部４１に半田接続する際には、作業者は、各電線１０（１０ｂ，１０ｃ）の被覆１２を各案内溝２４に位置させる。このとき、各案内部２４が、各電線１０（１０ｂ，１０ｃ）の被覆１２を前後両側から案内して電線１０ｃの一端部及び電線１０ｂの他端部を第２端子４０の電線接続部４１上に案内する。このため、互いに直列に接続された３本の電線１０（１０ａ，１０ｂ，１０ｃ）の両端部を電線接続部４１に整列させるのを容易に行うことができる。   Further, when soldering one end of the electric wire 10c and the other end of the electric wire 10b to the electric wire connecting portion 41 of the second terminal 40, the operator guides the covering 12 of each electric wire 10 (10b, 10c). It is located in the groove 24. At this time, each guide portion 24 guides the coating 12 of each electric wire 10 (10b, 10c) from both front and rear sides, and the one end portion of the electric wire 10c and the other end portion of the electric wire 10b are on the electric wire connection portion 41 of the second terminal 40. To guide. For this reason, it is possible to easily align both ends of the three electric wires 10 (10a, 10b, 10c) connected in series with the electric wire connecting portion 41.

次に、図１（Ｂ）に示すように、第１ハウジング部２１に自然硬化型接着剤あるいはＵＶ硬化型接着剤等の接着剤５０を塗布して各電線接続部３２，４１を覆う。これにより、各電線接続部３２，４１と各電線１０の芯線１１との接続部分を保護するとともに、各電線接続部３２，４１間の絶縁を確保する。
ここで、ハウジング２０の第１ハウジング部２１には、第１端子３０の４つの電線接続部３２及び１対の第２端子３０の電線接続部４１の周囲を囲う壁２６が設けられている。このため、第１ハウジング部２１に接着剤５０を塗布して各電線接続部３２，４１を覆うときに、壁２６により、接着剤５０の外部端子部４３への流れ込みが阻止される。よって、外部端子部４３へ流れ込んだ接着剤５０を除去する作業が不要となる。
以上の作業の後に、最後に、マスキングテープを除去する。これにより、ループアンテナ１が完成する。 Next, as shown in FIG. 1B, an adhesive 50 such as a natural curable adhesive or a UV curable adhesive is applied to the first housing portion 21 to cover the wire connecting portions 32 and 41. Thereby, while protecting the connection part of each electric wire connection part 32 and 41 and the core wire 11 of each electric wire 10, the insulation between each electric wire connection part 32 and 41 is ensured.
Here, the first housing portion 21 of the housing 20 is provided with a wall 26 surrounding the four wire connecting portions 32 of the first terminals 30 and the wire connecting portions 41 of the pair of second terminals 30. For this reason, when the adhesive 50 is applied to the first housing portion 21 to cover the wire connection portions 32 and 41, the wall 26 prevents the adhesive 50 from flowing into the external terminal portion 43. Therefore, the work of removing the adhesive 50 that has flowed into the external terminal portion 43 becomes unnecessary.
After the above operations, the masking tape is finally removed. Thereby, the loop antenna 1 is completed.

このように完成したループアンテナ１は、各外部端子部４３が、携帯電話機の筐体内の回路基板に接続された相手端子部に接触した状態で、当該筐体内に実装される。
本実施形態におけるループアンテナ１においては、各第１端子３０の電線接続部３２及び各第２端子４０の電線接続部４１が略平坦形状に形成されるので、ループアンテナ１の薄型化、例えば１．４５ｍｍ以下の高さを可能とすることができる。 The loop antenna 1 thus completed is mounted in the casing in a state where each external terminal portion 43 is in contact with a mating terminal portion connected to a circuit board in the casing of the mobile phone.
In the loop antenna 1 according to the present embodiment, the wire connection portions 32 of the first terminals 30 and the wire connection portions 41 of the second terminals 40 are formed in a substantially flat shape. A height of .45 mm or less may be possible.

また、前述したように、３本の電線１０の先端部を第１端子３０の電線接続部３２に案内する案内溝２３をハウジング２０に設け、互いに直列に接続された３本の電線１０の両端部を第２端子４０の電線接続部４１に案内する案内溝２４をハウジング２０に設けた。このため、電線１０を電線接続部３２，４１に整列させるのを容易に行え、製造工程を簡略化することができる。   Further, as described above, the guide groove 23 for guiding the tip end portions of the three electric wires 10 to the electric wire connecting portion 32 of the first terminal 30 is provided in the housing 20, and both ends of the three electric wires 10 connected in series with each other. A guide groove 24 is provided in the housing 20 for guiding the portion to the electric wire connection portion 41 of the second terminal 40. For this reason, the electric wire 10 can be easily aligned with the electric wire connecting portions 32 and 41, and the manufacturing process can be simplified.

次に、本発明に係るループアンテナの第２実施形態を図４及び図５を参照して説明する。図４は、本発明に係るループアンテナの第２実施形態を示し、（Ａ）は電線接続部を接着剤で覆う前の状態の斜視図、（Ｂ）は（Ａ）の矢印４Ｂ部分の拡大図である。図５は、図４に示すループアンテナにおいて、マスキングテープを貼着した場合の断面図である。図４及び図５においては、図１乃至図３における構成部材と同一の構成部材については同一の符号を付し、重複した説明は省略する。   Next, a second embodiment of the loop antenna according to the present invention will be described with reference to FIGS. FIG. 4: shows 2nd Embodiment of the loop antenna which concerns on this invention, (A) is a perspective view of the state before covering an electric wire connection part with an adhesive agent, (B) is an enlarged view of the arrow 4B part of (A). FIG. FIG. 5 is a cross-sectional view of the loop antenna shown in FIG. 4 when a masking tape is attached. 4 and 5, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals, and redundant description is omitted.

図４及び図５に示すループアンテナ１は、図１乃至図３に示すループアンテナ１と基本構成は同一である。しかし、図４及び図５に示すループアンテナ１は、ハウジング２０の第２ハウジング部２２に、１対の第２端子４０の外部端子部４３の周囲に外部端子部４３の表層部よりも高い壁部２７を設けた点で図１乃至図３に示すループアンテナ１と異なっている。   The loop antenna 1 shown in FIGS. 4 and 5 has the same basic configuration as the loop antenna 1 shown in FIGS. However, the loop antenna 1 shown in FIG. 4 and FIG. It differs from the loop antenna 1 shown in FIGS. 1 to 3 in that the portion 27 is provided.

即ち、図４及び図５に示すループアンテナ１において、矩形形状に形成された第２ハウジング部２２の表面外縁に、外部端子部４３の表層部よりも高くなるように該表面外縁から立ち上がる壁部２７が設けられている。
この壁部２７は、図５に示すように、各電線１０の半田接続に先立ち、第２ハウジング部２２に配置されている各第２端子４０の外部端子部４３をマスキングテープ６０で覆う際に、壁部２７の上面上にマスキングテープ６０を貼着させるものである。 That is, in the loop antenna 1 shown in FIGS. 4 and 5, the wall portion rising from the outer edge of the surface of the second housing portion 22 formed in a rectangular shape so as to be higher than the surface layer portion of the external terminal portion 43. 27 is provided.
As shown in FIG. 5, this wall portion 27 is used when the external terminal portion 43 of each second terminal 40 arranged in the second housing portion 22 is covered with a masking tape 60 prior to solder connection of each electric wire 10. The masking tape 60 is stuck on the upper surface of the wall portion 27.

この壁部２７は、外部端子部４３の表層部よりも高くなっているから、壁部２７の上面上にマスキングテープ６０を貼着すると、図５に示すように、外部端子部４３とは離れた位置に貼着されることになる。このため、マスキングテープ６０が外部端子部４３に接触するのが防止され、外部端子部４３上にマスキングテープ６０の糊残りを防止することができる。
更に、本発明に係るループアンテナの第３実施形態を図６を参照して説明する。図６は、本発明に係るループアンテナの第３実施形態を示し、（Ａ）は斜視図、（Ｂ）は（Ａ）の矢印６Ｂ部分の拡大図である。図６においては、図１乃至図３における構成部材と同一の構成部材については同一の符号を付し、重複した説明は省略する。 Since the wall portion 27 is higher than the surface layer portion of the external terminal portion 43, when the masking tape 60 is pasted on the upper surface of the wall portion 27, the wall portion 27 is separated from the external terminal portion 43 as shown in FIG. It will be attached to the position. For this reason, it is possible to prevent the masking tape 60 from coming into contact with the external terminal portion 43, and to prevent adhesive residue of the masking tape 60 on the external terminal portion 43.
Furthermore, a third embodiment of the loop antenna according to the present invention will be described with reference to FIG. 6A and 6B show a third embodiment of a loop antenna according to the present invention, in which FIG. 6A is a perspective view and FIG. 6B is an enlarged view of a portion indicated by an arrow 6B in FIG. In FIG. 6, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals, and redundant description is omitted.

図６に示すループアンテナ１は、図１乃至図３に示すループアンテナ１と基本構成は同一である。しかし、図６に示すループアンテナ１は、各第２端子４０の外部端子部４３の構造及び形状が図１乃至図３に示すループアンテナ１の外部端子部４３と異なっている。
即ち、図６に示すループアンテナ１における第２端子部４３は、第２ハウジング部２２の上面上を延びる略矩形形状の基部４３ａと、基部４３ａの前端（図６（Ｂ）における下端）から湾曲するように折り返されたばね部４３ｂとを備えている。基部４３ａは、連結部４２から延びている。また、第２端子部４３は、ばね部４３ｂの先端から上方に延びて湾曲する接触部４３ｃを備えている。接触部４３ｃは、携帯電話機の筐体内の回路基板に接続された相手端子部に弾性的に接触する。また、第２端子部４３は、接触部４３ｃに予め荷重を負荷するプリロード付与部４３ｄを備えている。 The loop antenna 1 shown in FIG. 6 has the same basic configuration as the loop antenna 1 shown in FIGS. However, the loop antenna 1 shown in FIG. 6 is different from the external terminal portion 43 of the loop antenna 1 shown in FIGS. 1 to 3 in the structure and shape of the external terminal portion 43 of each second terminal 40.
That is, the second terminal portion 43 in the loop antenna 1 shown in FIG. 6 is curved from the substantially rectangular base portion 43a extending on the upper surface of the second housing portion 22 and the front end (lower end in FIG. 6B) of the base portion 43a. And a spring portion 43b folded back. The base portion 43 a extends from the connecting portion 42. The second terminal portion 43 includes a contact portion 43c that extends upward from the tip of the spring portion 43b and curves. The contact part 43c elastically contacts the counterpart terminal part connected to the circuit board in the casing of the mobile phone. The second terminal portion 43 includes a preload imparting portion 43d that applies a load to the contact portion 43c in advance.

このように、図６に示すループアンテナ１における第２端子部４３は、ばね部４３ｂを設けて接触部４３ｃを弾性的に上下方向に変位可能とするよう構成され、ばね端子部となっている。これにより、携帯電話機の筐体内の回路基板に接続された相手端子部を弾性的に変位可能とする必要はなくなり、相手端子部の形状を弾性部を不要とした簡単な形状とすることができる。   As described above, the second terminal portion 43 in the loop antenna 1 shown in FIG. 6 is configured to be provided with the spring portion 43b so that the contact portion 43c can be elastically displaced in the vertical direction, thus forming a spring terminal portion. . This eliminates the need for elastically displacing the mating terminal portion connected to the circuit board in the casing of the mobile phone, and allows the mating terminal portion to have a simple shape that does not require an elastic portion. .

以上、本発明の実施形態について説明してきたが、本発明はこれに限定されず、種々の変更、改良を行うことができる。
例えば、ループアンテナ１では、３本の電線１０ａ，１０ｂ，１０ｃを用いて、３重のループアンテナを構成しているが、用いる電線１０の数及びループアンテナの巻数は適宜増減することができる。用いる電線１０の数は２本以上であればよい。この際に、用いる第１端子３０の数は、用いる電線１０の数よりも１つ少ない。 As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various change and improvement can be performed.
For example, in the loop antenna 1, a triple loop antenna is configured by using three electric wires 10a, 10b, and 10c. However, the number of electric wires 10 to be used and the number of turns of the loop antenna can be appropriately increased or decreased. The number of the electric wires 10 to be used may be two or more. At this time, the number of first terminals 30 to be used is one less than the number of electric wires 10 to be used.

また、３本の電線１０の先端部を第１端子３０の電線接続部３２に案内する案内溝２３を第１ハウジング部２１に設けたが、当該案内溝２３を第１端子３０に設けてもよい。同様に、互いに直列に接続された３本の電線１０の両端部を第２端子４０の電線接続部４１に案内する案内溝２４を第１ハウジング部２１に設けたが、当該案内溝２４を第２端子４０に設けても良い。
また、３本の電線１０の芯線１１の先端部は第１端子３０の電線接続部３２に半田接続されているが、半田接続以外の例えば、レーザ溶接接続、超音波融着接続であってもよい。互いに直列に接続された３本の電線１０の両端部の電線接続部４１に対する接続も同様である。 Further, although the guide groove 23 for guiding the tip end portions of the three electric wires 10 to the electric wire connecting portion 32 of the first terminal 30 is provided in the first housing portion 21, the guide groove 23 may be provided in the first terminal 30. Good. Similarly, guide grooves 24 for guiding both ends of three electric wires 10 connected in series to the electric wire connecting portion 41 of the second terminal 40 are provided in the first housing portion 21. Two terminals 40 may be provided.
Moreover, although the front-end | tip part of the core wire 11 of the three electric wires 10 is solder-connected to the electric wire connection part 32 of the 1st terminal 30, even if it is laser welding connection other than solder connection, ultrasonic fusion connection, etc. Good. The same applies to the connection to the wire connection portion 41 at both ends of the three wires 10 connected in series with each other.

また、第１端子３０の電線接続部３２及び第２端子４０の電線接続部４１の周囲に設けた壁２６は、全ての電線接続部３２及び電線接続部４１の周囲を囲うように形成されているが、４つの電線接続３２の各々及び２つの電線接続部４１の各々を囲うように複数設けても良い。
さらに、外部端子部４３の表層部よりも高い壁部２７は、第２ハウジング部２２の表面外縁に設ける必要は必ずしもなく、各外部端子部４３を取り囲むように複数設けても良い。 Further, the wall 26 provided around the wire connection part 32 of the first terminal 30 and the wire connection part 41 of the second terminal 40 is formed so as to surround the periphery of all the wire connection parts 32 and the wire connection parts 41. However, a plurality of wires may be provided so as to surround each of the four wire connections 32 and each of the two wire connections 41.
Furthermore, the wall portion 27 higher than the surface layer portion of the external terminal portion 43 is not necessarily provided on the outer edge of the surface of the second housing portion 22, and a plurality of wall portions 27 may be provided so as to surround each external terminal portion 43.

１ ループアンテナ
１０（１０ａ，１０ｂ，１０ｃ） 電線
２０ ハウジング
２３，２４ 案内溝
２６ 壁
２７ 壁部
３０ 第１端子
３２ 電線接続部
４０ 第２端子
４１ 電線接続部 DESCRIPTION OF SYMBOLS 1 Loop antenna 10 (10a, 10b, 10c) Electric wire 20 Housing 23, 24 Guide groove 26 Wall 27 Wall part 30 1st terminal 32 Electric wire connection part 40 2nd terminal 41 Electric wire connection part

Claims (5)

アンテナ素子を構成する複数本の電線と、絶縁性のハウジングと、該ハウジングに取り付けられ、前記複数本の電線を互いに直列に接続する第１端子と、前記ハウジングに取付けられ、互いに直列に接続された前記複数本の電線の両端がそれぞれ接続される１対の第２端子とを備えたループアンテナであって、
前記第１端子の電線接続部及び前記第２端子の電線接続部が略平坦形状に形成されるともに、前記複数本の電線の先端部を前記第１端子の電線接続部に案内する案内溝を前記ハウジング又は前記第１端子に設け、互いに接続された前記複数本の電線の両端部を前記第２端子の電線接続部に案内する案内溝を前記ハウジング又は前記第２端子に設けたことを特徴とするループアンテナ。 A plurality of wires constituting the antenna element, an insulating housing, a first terminal attached to the housing and connecting the plurality of wires to each other in series, and attached to the housing and connected to each other in series. A loop antenna comprising a pair of second terminals to which both ends of the plurality of electric wires are respectively connected;
The wire connecting portion of the first terminal and the wire connecting portion of the second terminal are formed in a substantially flat shape, and a guide groove for guiding the tip end portions of the plurality of wires to the wire connecting portion of the first terminal is provided. A guide groove provided in the housing or the first terminal and guiding both ends of the plurality of electric wires connected to each other to the electric wire connecting portion of the second terminal is provided in the housing or the second terminal. And loop antenna. 記複数本の電線の先端部は前記第１端子の電線接続部に半田接続、レーザ溶接接続、又は超音波融着接続されると共に、互いに接続された前記複数本の電線の両端部は前記第２端子の電線接続部に半田接続、レーザ溶接接続、又は超音波融着接続されることを特徴とする請求項１記載のループアンテナ。   The tip ends of the plurality of wires are soldered, laser welded, or ultrasonically welded to the wire connecting portion of the first terminal, and both ends of the plurality of wires connected to each other are connected to the first terminal. The loop antenna according to claim 1, wherein the two-terminal electric wire connection portion is connected by soldering, laser welding, or ultrasonic fusion connection. 前記ハウジングが、前記第１端子の電線接続部及び前記第２端子の電線接続部の周囲に壁を有することを特徴とする請求項１又は２記載のループアンテナ。   The loop antenna according to claim 1 or 2, wherein the housing has walls around the wire connecting portion of the first terminal and the wire connecting portion of the second terminal. 前記ハウジングが、前記第２端子の外部端子部の周囲に、該外部端子部の表層部よりも高い壁部を有することを特徴とする請求項１乃至３のうちいずれか一項に記載のループアンテナ。   The loop according to any one of claims 1 to 3, wherein the housing has a wall portion around the external terminal portion of the second terminal that is higher than a surface layer portion of the external terminal portion. antenna. 前記第２端子の外部端子部が、ばね端子部であることを特徴とする請求項１乃至４のうちいずれか一項に記載のループアンテナ。   The loop antenna according to any one of claims 1 to 4, wherein the external terminal portion of the second terminal is a spring terminal portion.
JP2010133233A 2010-06-10 2010-06-10 Loop antenna Expired - Fee Related JP5616132B2 (en)

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US8687353B2 (en) 2010-03-08 2014-04-01 Panasonic Corporation Electronic equipment

Citations (3)

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JPH0897535A (en) * 1994-09-21 1996-04-12 Ibiden Co Ltd Electronic component mounting device
JP2009060519A (en) * 2007-09-03 2009-03-19 Tyco Electronics Amp Kk Loop antenna and loop antenna manufacturing method
JP2009100189A (en) * 2007-10-16 2009-05-07 Fujikura Ltd Coil antenna

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0897535A (en) * 1994-09-21 1996-04-12 Ibiden Co Ltd Electronic component mounting device
JP2009060519A (en) * 2007-09-03 2009-03-19 Tyco Electronics Amp Kk Loop antenna and loop antenna manufacturing method
JP2009100189A (en) * 2007-10-16 2009-05-07 Fujikura Ltd Coil antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8687353B2 (en) 2010-03-08 2014-04-01 Panasonic Corporation Electronic equipment

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