JPH05278460A - Coil for glass antenna for automobile - Google Patents
Coil for glass antenna for automobileInfo
- Publication number
- JPH05278460A JPH05278460A JP10856292A JP10856292A JPH05278460A JP H05278460 A JPH05278460 A JP H05278460A JP 10856292 A JP10856292 A JP 10856292A JP 10856292 A JP10856292 A JP 10856292A JP H05278460 A JPH05278460 A JP H05278460A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- turns
- automobile
- magnetic core
- glass antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Details Of Aerials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は自動車ガラスアンテナ用
コイル等に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil for an automobile glass antenna and the like.
【０００２】[0002]
【従来の技術】従来、図３に示すような、自動車の後部
窓の開口部に嵌め込まれる後部窓のガラス板にヒーター
線１５とヒーター線１５に給電するバスバー１３ａ、ｂ
とを有する通電加熱式のデフォッガー１４と、所定パタ
ーンのアンテナ導体１６とが設けられ、デフォッガー１
４とアンテナ導体１６とをそれらの一部において、両者
間で直流電流の送受は行われないが高周波電流の送受は
行われるように所定間隔において近接させて容量結合さ
せた自動車用ガラスアンテナが知られている。2. Description of the Related Art Conventionally, as shown in FIG. 3, a heater wire 15 and a bus bar 13a, b for supplying power to the heater wire 15 are attached to a glass plate of a rear window fitted in an opening of a rear window of an automobile.
A defogger 14 of an electrically heated type having an antenna conductor 16 having a predetermined pattern is provided.
There is known a glass antenna for an automobile in which a part of the antenna 4 and the antenna conductor 16 are capacitively coupled in close proximity to each other at a predetermined interval so that direct current is not transmitted / received between them and high frequency current is transmitted / received between them. Has been.
【０００３】その受信特性を向上する構成として、図４
に示すような端子装置に収納された一重巻のコイル１０
をチョークコイル１９と直列にして、バスバー１３ａ、
ｂと接地等との間に配し、高周波域でデフォッガー１４
と接地間のインピーダンスを高めた構成が本願発明者に
よって特願平３−２５９６１３号として提案されてい
る。図４において、２３ｂはコイル１０の接続のための
端子片、２３ａ、ｃは固定のための脚部である。As a configuration for improving the reception characteristic, FIG.
Single-wound coil 10 housed in a terminal device as shown in FIG.
In series with the choke coil 19 and the bus bar 13a,
Place it between b and the ground, etc.
A configuration in which the impedance between the ground and the ground is increased is proposed by the present inventor as Japanese Patent Application No. 3-259613. In FIG. 4, 23b is a terminal piece for connecting the coil 10, and 23a, c are legs for fixing.
【０００４】[0004]
【発明が解決しようとする課題】しかし、この従来のコ
イル１０の構造では、高周波域でコイル１０のインピー
ダンスが充分に高くならず、充分な高周波域の受信感度
の向上、Ｓ／Ｎ比の向上が得られなかった。本発明は、
従来技術の有する上述の欠点を解消することを目的とし
て、新規な自動車ガラスアンテナ用コイル等を提供する
ものである。However, in the structure of the conventional coil 10 described above, the impedance of the coil 10 does not become sufficiently high in the high frequency range, and the reception sensitivity and the S / N ratio are sufficiently improved in the high frequency range. Was not obtained. The present invention is
It is an object of the present invention to provide a novel coil for an automobile glass antenna and the like for the purpose of solving the above-mentioned drawbacks of the conventional art.
【０００５】[0005]
【課題を解決するための手段】本発明は前述の課題を解
決すべくなされたものであり、内側コイルと、その外周
上の少なくとも一部に同方向に巻かれた外側コイルとか
らなるコイルであって、巻線の断面積を０．６４〜２
３．８ｍｍ2 、外側コイルの外径を４．２〜３０ｍｍ、
内側コイルの外径を２．５〜２８ｍｍ、コイルの長さを
１．４〜８３ｍｍ、更に、内側コイルの巻数を２〜３９
ターン、外側コイルの巻数を１〜３８ターン、としたこ
とを特徴とする自動車ガラスアンテナ用コイル、及び、
磁芯を内側コイルの中心に配し、かつ、磁芯に最大透磁
率１０〜１０6 の磁性材料を使用したことを特徴とする
自動車アンテナ用コイル等を提供するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is a coil comprising an inner coil and an outer coil wound in the same direction on at least a part of the outer circumference thereof. The cross-sectional area of the winding is 0.64 to 2
3.8 mm2, the outer diameter of the outer coil is 4.2 to 30 mm,
The outer diameter of the inner coil is 2.5 to 28 mm, the length of the coil is 1.4 to 83 mm, and the number of turns of the inner coil is 2 to 39.
A coil for an automobile glass antenna, wherein the number of turns of the outer coil is 1 to 38 turns, and
A coil for an automobile antenna, etc., characterized in that a magnetic core is arranged at the center of an inner coil and a magnetic material having a maximum magnetic permeability of 10 to 10 6 is used for the magnetic core.
【０００６】[0006]
【実施例】実施例を図１に示し、図面に従って詳細に説
明する。図１において、１はコイル、１ａは内側コイ
ル、１ｂは外側コイル、２は磁芯、３ａ，３ｃは脚部、
３ｂは端子片、４はケース、５ａ，５ｂはコイル１と脚
部３ａ、端子片３ｂの接合部である。An embodiment is shown in FIG. 1 and will be described in detail with reference to the drawings. In FIG. 1, 1 is a coil, 1a is an inner coil, 1b is an outer coil, 2 is a magnetic core, 3a and 3c are legs,
3b is a terminal piece, 4 is a case, 5a and 5b are the joining parts of the coil 1, the leg part 3a, and the terminal piece 3b.
【０００７】コイル１の巻線は断面形状が円形又は三角
形、四角形、多角形等のものを用いることができるが、
加工の都合上、円形の線材が望ましい。従って実施例で
は円形の線材を使用した。また、断面形状が円筒形状、
又は三角形を含む多角形状の中空であっても良い。The winding of the coil 1 may have a circular or triangular cross section, a quadrangle, a polygon, or the like.
A circular wire is desirable for processing convenience. Therefore, a circular wire rod was used in the examples. Also, the cross-sectional shape is cylindrical,
Alternatively, it may be a polygonal hollow including a triangle.
【０００８】巻線の導体部分の断面積は０．６４ｍｍ2
〜２３．８ｍｍ2 の範囲が好ましく、デフォッガー１４
の消費電力を満足する断面積をもつ形状であればよい。
２．０ｍｍ2 〜５．０ｍｍ2 程度がより望ましい。実施
例では２．５４ｍｍ2 の断面積の巻線を使用した。０．
６４ｍｍ2 未満ではデフォッガーに必要な電流を流すこ
とができず、２３．８ｍｍ2 超では、形状が大きくなり
過ぎ好ましくない。巻線の断面形状はデフォッガーへの
供給電力を満足すれば複数線で構成されていてもよい。The cross-sectional area of the conductor portion of the winding is 0.64 mm2
A range of ˜23.8 mm 2 is preferred, and Defogger 14
Any shape having a cross-sectional area that satisfies the power consumption of
More preferably, it is about 2.0 mm2 to 5.0 mm2. In the example, a winding having a cross-sectional area of 2.54 mm2 was used. 0.
If it is less than 64 mm 2, the current required for the defogger cannot be passed, and if it exceeds 23.8 mm 2, the shape becomes too large, which is not preferable. The cross-sectional shape of the winding may be composed of a plurality of wires as long as the power supplied to the defogger is satisfied.
【０００９】例えば複数の平行状線よりなる線でもよ
い。巻線の材質は良導体を使用する。銅、銅系合金やア
ルミニウム、アルミニウム合金、又は真ちゅうや高分子
良導体等を使用することができる。実施例では軟銅材を
使用した。巻線の絶縁被覆は高分子材料が適している。
エナメルや高分子材料であるポリウレタン等がよい。実
施例では１種のポリウレタン被覆線を使用した。巻線
は、この材質に限定されず表面を絶縁被覆された巻線で
あれば使用できる。For example, a line composed of a plurality of parallel lines may be used. Use a good conductor for the winding material. Copper, copper-based alloy, aluminum, aluminum alloy, brass, good polymer conductor or the like can be used. An annealed copper material was used in the examples. A polymer material is suitable for the insulating coating of the winding.
Enamel or polyurethane, which is a polymer material, is preferable. One polyurethane coated wire was used in the examples. The winding is not limited to this material, and any winding whose surface is insulated may be used.
【００１０】外側コイル１ｂの外径φC は、４．２〜３
０ｍｍ程度の範囲が受信特性上等の理由により好まし
い。４．２ｍｍ未満であるとコイルを巻くのが困難とな
り、３０ｍｍ超では、高周波領域で必要なインダクタン
スが得られなくなる。より望ましい範囲は５．０〜１７
ｍｍである。実施例では８．５ｍｍとした。同一理由で
内側コイル１ｂの外径φB は、２．５〜２８ｍｍ程度の
範囲が好ましく、より望ましくは３．５〜１５ｍｍであ
る。実施例では５．０ｍｍとした。The outer diameter φ C of the outer coil 1b is 4.2 to 3
A range of about 0 mm is preferable for reasons such as reception characteristics. If it is less than 4.2 mm, it becomes difficult to wind the coil, and if it exceeds 30 mm, the required inductance cannot be obtained in the high frequency region. More desirable range is 5.0 to 17
mm. In the embodiment, it is 8.5 mm. For the same reason, the outer diameter φB of the inner coil 1b is preferably in the range of about 2.5 to 28 mm, more preferably 3.5 to 15 mm. In the embodiment, it is set to 5.0 mm.
【００１１】コイル１の長さＬは１．４〜８３ｍｍの範
囲が受信特性上好ましい。１．４ｍｍ未満では、必要な
インダクタンスが得られなくなり、８３ｍｍを超えると
受信特性を改善しようとした周波数帯域から共振周波数
がずれてしまい、コイル１使用の効果が失われるからで
ある。８〜２０ｍｍがより望ましい。実施例では１２ｍ
ｍとした。コイル１の巻き方は内側コイル１ａは２〜３
９ターンまでの範囲が受信特性上好ましく、５〜２０タ
ーンがより望ましい。実施例では７ターンとした。２タ
ーン未満であると充分な性能が得られず、３９ターンを
超えると受信特性を改善しようとした周波数帯域から共
振周波数がずれてしまうからである。The length L of the coil 1 is preferably in the range of 1.4 to 83 mm in view of reception characteristics. This is because if it is less than 1.4 mm, the required inductance cannot be obtained, and if it exceeds 83 mm, the resonance frequency deviates from the frequency band intended to improve the reception characteristic, and the effect of using the coil 1 is lost. 8 to 20 mm is more desirable. 12m in the example
m. How to wind the coil 1 is 2 to 3 for the inner coil 1a.
A range of up to 9 turns is preferable in terms of reception characteristics, and 5 to 20 turns are more preferable. In the embodiment, the number of turns is seven. This is because if the number of turns is less than 2 turns, sufficient performance cannot be obtained, and if the number of turns exceeds 39, the resonance frequency deviates from the frequency band intended to improve the reception characteristics.
【００１２】外側コイル１ｂは内側コイル１ａに同方向
に重ね巻きする。内側コイル１ａと同理由で巻き数は１
ターン〜３８ターン程度の範囲が受信特性上好ましく、
４〜１９ターンがより望ましい。実施例では６ターンと
した。また、内側コイル１ａと外側コイル１ｂの巻数は
かならずしも同じでなくてもよく、所望の受信特性等に
よって任意に設定される。The outer coil 1b is wound around the inner coil 1a in the same direction. The number of turns is 1 for the same reason as the inner coil 1a.
A range of about 38 to 38 turns is preferable in terms of reception characteristics,
4 to 19 turns are more desirable. In the embodiment, it has 6 turns. The number of turns of the inner coil 1a and the number of turns of the outer coil 1b do not necessarily have to be the same, and are arbitrarily set according to desired reception characteristics and the like.
【００１３】磁芯２は、コイル１の電気的特性を調整す
るために使用した。磁芯２を使用した場合は、使用しな
い場合と比較してインダクタンスが大きくなり、コイル
１の形状も小さくできる。磁芯２は磁性材料が好まし
く、特にフェライトやセンダスト等がよい。実施例では
フェライトを使用した。磁芯２で用いる磁性材料の磁気
特性として最大透磁率μmax は１０〜１０6 までが受信
特性上望ましく、１０2〜１０4 がより望ましい。１０
未満であると磁芯２使用の効果が得られず、１０6 を超
えると磁芯２の材質に磁気飽和を生じ、磁芯２を使用し
た効果が得られなくなる。実施例ではμmax は５０００
の材料を使用した。The magnetic core 2 was used to adjust the electrical characteristics of the coil 1. When the magnetic core 2 is used, the inductance becomes larger and the shape of the coil 1 can be made smaller than when not used. The magnetic core 2 is preferably made of a magnetic material, particularly ferrite or sendust. Ferrite was used in the examples. As the magnetic characteristics of the magnetic material used for the magnetic core 2, the maximum magnetic permeability .mu.max of 10 to 10 @ 6 is desirable in terms of reception characteristics, and 10 @ 2 to 10 @ 4 is more desirable. 10
If it is less than 10%, the effect of using the magnetic core 2 cannot be obtained, and if it exceeds 10 6, magnetic saturation occurs in the material of the magnetic core 2, and the effect of using the magnetic core 2 cannot be obtained. In the embodiment, μmax is 5000
The material of was used.
【００１４】更に、磁芯２の磁気特性として損失係数
（１／μｉＱ）は１×１０-8〜１．０程度の範囲がよ
く、実施例では６×１０-5の損失係数を持つ磁性材料を
使用した。１×１０-8未満であると使用できる周波数が
狭くなり、受信周波数全帯域で使用しにくくなる。１．
０を超えると損失が大きく磁芯２を使用した効果が得ら
れない。磁芯２の直径φA は０．２〜２６ｍｍの範囲が
好ましい。０．２ｍｍ未満であると、磁芯２の使用効果
が得られず、２６ｍｍを超えると内側コイル１６の中に
挿入できないからである。実施例では１．３ｍｍとし
た。Further, as the magnetic characteristics of the magnetic core 2, the loss coefficient (1 / μiQ) is preferably in the range of about 1 × 10 -8 to 1.0, and in the embodiment, a magnetic material having a loss coefficient of 6 × 10 -5. It was used. If it is less than 1 × 10 -8, the usable frequency becomes narrow and it becomes difficult to use it in the entire reception frequency band. 1.
If it exceeds 0, the loss is large and the effect of using the magnetic core 2 cannot be obtained. The diameter φA of the magnetic core 2 is preferably in the range of 0.2 to 26 mm. This is because if it is less than 0.2 mm, the effect of using the magnetic core 2 cannot be obtained, and if it exceeds 26 mm, it cannot be inserted into the inner coil 16. In the embodiment, it is 1.3 mm.
【００１５】磁芯２の長さは、２〜１００ｍｍの範囲が
好ましく、２ｍｍ未満では磁芯２の使用効果が得られ
ず、１００ｍｍを超えると漏れ磁束が多くなり望ましく
ない。実施例では１５ｍｍとした。磁芯２は円筒型フェ
ライトコアを使用したが、コイル１の電気的性能によっ
て円柱状のフェライトコア等でもよい。また、コイル１
の中心に挿入する磁性材料は線状の磁性材料を１本又は
複数本束にして使用してもよい。更に、空芯であっても
使用できる。The length of the magnetic core 2 is preferably in the range of 2 to 100 mm, and if it is less than 2 mm, the effect of using the magnetic core 2 cannot be obtained, and if it exceeds 100 mm, leakage flux increases, which is not desirable. In the embodiment, it is set to 15 mm. Although the magnetic core 2 uses a cylindrical ferrite core, a cylindrical ferrite core or the like may be used depending on the electrical performance of the coil 1. Also, coil 1
The magnetic material to be inserted in the center of the linear magnetic material may be a bundle of one or more linear magnetic materials. Further, even an air core can be used.
【００１６】実施例では、コイル１を図１、図２に示す
端子装置内に収納した。この端子装置は、両側に脚部３
ａ、３ｃを有し、脚部３ａ、３ｃに挟まれた中央部分
に、コイル１を配し、かつ樹脂からなる絶縁物によりケ
ース４を構成した。ケース４の上部からは、上方又は側
方に伸びる端子片３ｂを設け、脚部３ａと端子片３ｂ
に、コイル１の両端をそれぞれ接続した。なお、コイル
１の一端を、脚部３ｃに接続してもよい。また、コイル
１を収納する端子装置は、この形状、構造に限られず、
他の形状、構造であっても使用できる。In the embodiment, the coil 1 is housed in the terminal device shown in FIGS. This terminal device has legs 3 on both sides.
The coil 1 is arranged in the central portion between the legs 3a and 3c, and the case 4 is made of an insulating material made of resin. A terminal piece 3b extending upward or laterally is provided from the upper part of the case 4, and the leg portion 3a and the terminal piece 3b are provided.
Then, both ends of the coil 1 were connected to each other. Note that one end of the coil 1 may be connected to the leg portion 3c. Further, the terminal device for housing the coil 1 is not limited to this shape and structure,
Other shapes and structures can also be used.
【００１７】脚部３ａ、３ｃは、バスバー６等に半田、
ロウ材等で接着される。端子片３ｂは、防曇用熱線の給
電線正極（＋）側、接地極（−）側のどちらかに接続さ
れる。脚部３ａ、３ｃ、端子片３ｂは軟銅に錫メッキを
施した材料を使用した。この材質は、これに限定され
ず、真ちゅう等を含む銅系合金等で表面保護と半田付け
性を良くするために錫メッキ等を施した材料等、その他
アルミニウム、アルミニウム合金、銀、銀系合金等も使
用できる。The legs 3a and 3c are soldered to the bus bar 6 or the like,
Bonded with a brazing material. The terminal piece 3b is connected to either the positive electrode (+) side or the ground electrode (-) side of the anti-fog heat wire. The legs 3a and 3c and the terminal piece 3b are made of a material obtained by plating annealed copper with tin. The material is not limited to this, and a copper-based alloy containing brass or the like plated with tin to improve surface protection and solderability, etc., other aluminum, aluminum alloys, silver, silver-based alloys, etc. Etc. can also be used.
【００１８】また、コイルと直流的に接続できれば導電
性高分子材料も使用できる。脚部３ａ、端子片３ｂとコ
イル１の両端は、高温半田を使用し、５ａ、５ｂで接続
固定した。端子片３ｂ等とコイル１の接続は半田付けに
限らず、ロウ付け、溶接、ネジ止め、カシメ止め等直流
的に接続して、かつ、端子の引っ張り強度等、機械的強
度が有る接続方法であれば限定されない。A conductive polymer material can also be used as long as it can be connected to the coil in a direct current manner. The leg portion 3a, the terminal piece 3b, and both ends of the coil 1 were connected and fixed at 5a and 5b using high temperature solder. The connection between the terminal piece 3b and the coil 1 is not limited to soldering, but may be done by brazing, welding, screwing, crimping, or other direct current connection, and with a mechanical strength such as the tensile strength of the terminal. It is not limited if it exists.
【００１９】ケース４は、受信特性上好ましいので、シ
リコーン樹脂を使用したが、これに限定されず、ウレタ
ン樹脂等高分子材料も使用できる。ケース４の成形方法
は、射出成形等形状を成形できる方法であればよい。ケ
ース４は外装であり水滴等の外的要因からコイル１を保
護をし、更に、美感を高めることができる。The case 4 is preferably made of silicone resin because it is preferable in terms of reception characteristics. However, the case 4 is not limited to this, and a polymer material such as urethane resin can also be used. The case 4 may be molded by any method capable of molding a shape such as injection molding. The case 4 is an exterior, protects the coil 1 from external factors such as water droplets, and further enhances the aesthetic appearance.
【００２０】なお、図３に、本発明のコイル１を使用し
た自動車用ガラスアンテナの基本的構成を示す。図３に
おいて、１１は後部の窓のガラス板、１２はコンデンサ
ー、１３ａ、１３ｂはバスバー、１４はデフォッガー、
１５はヒーター線、１６はアンテナ導体、１７はバッテ
リー、１８はリアクタンス回路モジュール、１９はチョ
ークコイルである。Incidentally, FIG. 3 shows a basic structure of an automobile glass antenna using the coil 1 of the present invention. In FIG. 3, 11 is a glass plate of the rear window, 12 is a condenser, 13a and 13b are bus bars, 14 is a defogger,
Reference numeral 15 is a heater wire, 16 is an antenna conductor, 17 is a battery, 18 is a reactance circuit module, and 19 is a choke coil.
【００２１】図３において、アンテナ導体１６の一部
と、ヒーター線１５の最上部のものとは近接されてお
り、高周波的に容量結合されている。このようにした結
果、本発明のコイル１を挿入した場合は挿入しなかった
場合に比べてＦＭ放送帯域で約平均５〜１０ｄＢの受信
感度が向上した（表１）。In FIG. 3, a part of the antenna conductor 16 and the uppermost one of the heater wires 15 are close to each other and are capacitively coupled in high frequency. As a result, when the coil 1 of the present invention is inserted, the receiving sensitivity is improved on the average of about 5 to 10 dB in the FM broadcast band as compared with the case where it is not inserted (Table 1).
【００２２】[0022]
【表１】 [Table 1]
【００２３】なお、実施例ではコイル１を２個使用し、
チョークコイル１９とともに、バスバーａ、ｂと接地
間、かつ、バッテリー間に挿入したが、コイル１を１個
使用し、どちらか一方に挿入してもある程度の効果は期
待できる。In the embodiment, two coils 1 are used,
Although the choke coil 19 is inserted between the bus bars a and b and the ground and between the batteries, some effect can be expected by using one coil 1 and inserting it in either one.
【００２４】[0024]
【発明の効果】本発明のコイルは、高周波領域にて安定
したハイインピーダンス特性となるために、デフォッガ
ーと接地間に配することにより、高周波領域でデフォッ
ガーをアンテナとして効率良く使用でき、受信感度を著
しく向上できる。Since the coil of the present invention has a stable high impedance characteristic in a high frequency region, by disposing it between the defogger and the ground, the defogger can be efficiently used as an antenna in a high frequency region and the reception sensitivity is improved. It can be improved significantly.
【図１】本発明の自動車ガラスアンテナ用コイルを収納
した端子装置の側面図FIG. 1 is a side view of a terminal device accommodating a coil for an automobile glass antenna according to the present invention.
【図２】図１に示す端子装置の斜視図FIG. 2 is a perspective view of the terminal device shown in FIG.
【図３】本発明のコイルを使用した自動車用ガラスアン
テナの基本的構成図FIG. 3 is a basic configuration diagram of an automobile glass antenna using the coil of the present invention.
【図４】従来の自動車ガラスアンテナ用コイルを収納し
た端子装置の側面図FIG. 4 is a side view of a conventional terminal device that houses a coil for an automobile glass antenna.
１ ：コイル １ａ：内側コイル １ｂ：外側コイル ２ ：磁芯 ３ａ、３ｃ：脚部 ３ｂ：端子片 ４ ：ケース 1: coil 1a: inner coil 1b: outer coil 2: magnetic core 3a, 3c: leg 3b: terminal piece 4: case
【手続補正書】[Procedure amendment]
【提出日】平成４年９月１１日[Submission date] September 11, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項１[Name of item to be corrected] Claim 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項２[Name of item to be corrected] Claim 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００５】[0005]
【課題を解決するための手段】本発明は前述の課題を解
決すべくなされたものであり、内側コイルと、その外周
上の少なくとも一部に同方向に巻かれた外側コイルとか
らなるコイルであって、巻線の断面積を０．６４〜２
３．８ｍｍ2 、外側コイルの外径を４．２〜３０ｍｍ、
内側コイルの外径を２．５〜２８ｍｍ、コイルの長さを
１．４〜８３ｍｍ、更に、内側コイルの巻数を２〜３９
ターン、外側コイルの巻数を１〜３８ターン、としたこ
とを特徴とする自動車ガラスアンテナ用コイル、及び、
磁芯を内側コイルの中心に配し、かつ、磁芯に最大透磁
率１０〜１０6 の磁性材料を使用したことを特徴とする
自動車アンテナ用コイル等を提供するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is a coil comprising an inner coil and an outer coil wound in the same direction on at least a part of the outer circumference thereof. The cross-sectional area of the winding is 0.64 to 2
3.8 mm 2 , the outer diameter of the outer coil is 4.2 to 30 mm,
The outer diameter of the inner coil is 2.5 to 28 mm, the length of the coil is 1.4 to 83 mm, and the number of turns of the inner coil is 2 to 39.
A coil for an automobile glass antenna, wherein the number of turns of the outer coil is 1 to 38 turns, and
A coil for an automobile antenna, etc., characterized in that a magnetic core is arranged at the center of an inner coil and a magnetic material having a maximum magnetic permeability of 10 to 10 6 is used for the magnetic core.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００８】巻線の導体部分の断面積は０．６４ｍｍ2
〜２３．８ｍｍ2 の範囲が好ましく、デフォッガー１４
の消費電力を満足する断面積をもつ形状であればよい。
２．０ｍｍ2 〜５．０ｍｍ2 程度がより望ましい。実施
例では２．５４ｍｍ2 の断面積の巻線を使用した。０．
６４ｍｍ2 未満ではデフォッガーに必要な電流を流すこ
とができず、２３．８ｍｍ2 超では、形状が大きくなり
過ぎ好ましくない。巻線の断面形状はデフォッガーへの
供給電力を満足すれば複数線で構成されていてもよい。The cross-sectional area of the conductor portion of the winding is 0.64 mm 2
〜23.8mm 2 is preferable, Defogger 14
Any shape having a cross-sectional area that satisfies the power consumption of
2.0mm 2 ~5.0mm 2 approximately is more desirable. In the example, a winding having a cross-sectional area of 2.54 mm 2 was used. 0.
If it is less than 64 mm 2 , the current necessary for the defogger cannot be passed, and if it exceeds 23.8 mm 2 , the shape becomes too large, which is not preferable. The cross-sectional shape of the winding may be composed of a plurality of wires as long as the power supplied to the defogger is satisfied.
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１０】外側コイル１ｂの外径φC は、４．２〜３
０ｍｍ程度の範囲が受信特性上等の理由により好まし
い。４．２ｍｍ未満であるとコイルを巻くのが困難とな
り、３０ｍｍ超では、高周波領域で必要なインダクタン
スが得られなくなる。より望ましい範囲は５．０〜１７
ｍｍである。実施例では８．５ｍｍとした。同一理由で
内側コイル１ｂの外径φB は、２．５〜２８ｍｍ程度の
範囲が好ましく、より望ましくは３．５〜１５ｍｍであ
る。実施例では５．０ｍｍとした。The outer diameter φ C of the outer coil 1b is 4.2 to 3
A range of about 0 mm is preferable for reasons such as reception characteristics. If it is less than 4.2 mm, it becomes difficult to wind the coil, and if it exceeds 30 mm, the required inductance cannot be obtained in the high frequency region. More desirable range is 5.0 to 17
mm. In the embodiment, it is 8.5 mm. For the same reason, the outer diameter φ B of the inner coil 1b is preferably in the range of about 2.5 to 28 mm, more preferably 3.5 to 15 mm. In the embodiment, it is set to 5.0 mm.
【手続補正６】[Procedure Amendment 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１３】磁芯２は、コイル１の電気的特性を調整す
るために使用した。磁芯２を使用した場合は、使用しな
い場合と比較してインダクタンスが大きくなり、コイル
１の形状も小さくできる。磁芯２は磁性材料が好まし
く、特にフェライトやセンダスト等がよい。実施例では
フェライトを使用した。磁芯２で用いる磁性材料の磁気
特性として最大透磁率μmax は１０〜１０6 までが受信
特性上望ましく、１０2〜１０4 がより望ましい。１０
未満であると磁芯２使用の効果が得られず、１０6 を超
えると磁芯２の材質に磁気飽和を生じ、磁芯２を使用し
た効果が得られなくなる。実施例ではμmax は５０００
の材料を使用した。The magnetic core 2 was used to adjust the electrical characteristics of the coil 1. When the magnetic core 2 is used, the inductance becomes larger and the shape of the coil 1 can be made smaller than when not used. The magnetic core 2 is preferably made of a magnetic material, particularly ferrite or sendust. Ferrite was used in the examples. As the magnetic characteristics of the magnetic material used for the magnetic core 2, the maximum magnetic permeability μ max is preferably 10 to 10 6 in view of the reception characteristics, and more preferably 10 2 to 10 4 . 10
If it is less than 10%, the effect of using the magnetic core 2 cannot be obtained, and if it exceeds 10 6 , magnetic saturation occurs in the material of the magnetic core 2, and the effect of using the magnetic core 2 cannot be obtained. In the embodiment, μ max is 5000
The material of was used.
【手続補正７】[Procedure Amendment 7]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１４[Correction target item name] 0014
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１４】更に、磁芯２の磁気特性として損失係数
（１／μｉＱ）は１×１０-8〜１．０程度の範囲がよ
く、実施例では６×１０-5の損失係数を持つ磁性材料を
使用した。１×１０-8未満であると使用できる周波数が
狭くなり、受信周波数全帯域で使用しにくくなる。１．
０を超えると損失が大きく磁芯２を使用した効果が得ら
れない。磁芯２の直径φA は０．２〜２６ｍｍの範囲が
好ましい。０．２ｍｍ未満であると、磁芯２の使用効果
が得られず、２６ｍｍを超えると内側コイル１６の中に
挿入できないからである。実施例では１．３ｍｍとし
た。Further, as the magnetic characteristics of the magnetic core 2, the loss factor (1 / μiQ) is preferably in the range of about 1 × 10 −8 to 1.0, and in the embodiment, a magnetic material having a loss factor of 6 × 10 −5. It was used. If it is less than 1 × 10 −8 , the usable frequency becomes narrow and it becomes difficult to use it in the entire reception frequency band. 1.
If it exceeds 0, the loss is large and the effect of using the magnetic core 2 cannot be obtained. The diameter φ A of the magnetic core 2 is preferably in the range of 0.2 to 26 mm. This is because if it is less than 0.2 mm, the effect of using the magnetic core 2 cannot be obtained, and if it exceeds 26 mm, it cannot be inserted into the inner coil 16. In the embodiment, it is 1.3 mm.
Claims (3)
部に同方向に巻かれた外側コイルとからなるコイルであ
って、巻線の断面積を０．６４〜２３．８ｍｍ2 、外側
コイルの外径を４．２〜３０ｍｍ、内側コイルの外径を
２．５〜２８ｍｍ、コイルの長さを１．４〜８３ｍｍ、
更に、内側コイルの巻数を２〜３９ターン、外側コイル
の巻数を１〜３８ターン、としたことを特徴とする自動
車ガラスアンテナ用コイル。1. A coil comprising an inner coil and an outer coil wound in the same direction on at least a part of the outer circumference thereof, wherein the winding has a cross-sectional area of 0.64 to 23.8 mm @ 2. Outer diameter is 4.2 to 30 mm, inner coil outer diameter is 2.5 to 28 mm, coil length is 1.4 to 83 mm,
Furthermore, the coil for an automobile glass antenna is characterized in that the number of turns of the inner coil is 2 to 39 turns and the number of turns of the outer coil is 1 to 38 turns.
芯に最大透磁率１０〜１０6 の磁性材料を使用したこと
を特徴とする請求項１の自動車ガラスアンテナ用コイ
ル。2. A coil for an automobile glass antenna according to claim 1, wherein a magnetic core is arranged at the center of the inner coil, and a magnetic material having a maximum magnetic permeability of 10 to 10 6 is used for the magnetic core.
る後部窓のガラス板にヒーター線とヒーター線に給電す
る複数本のバスバーとを有する通電加熱式のデフォッガ
ーと、所定パターンのアンテナ導体とが設けられ、更に
デフォッガーとアンテナ導体とを少なくともそれらの一
部において、両者間で直流電流の送受は行われないが高
周波電流の送受は行われるように所定間隔において近接
させて容量結合させた自動車用ガラスアンテナにおい
て、一方のバスバーとバッテリーの正極との間、、及
び、他方のバスバーと接地との間、の少なくとも一方に
チョークコイルと請求項１又は請求項２の自動車ガラス
アンテナ用コイルを直列にして挿入したことを特徴とす
る自動車用ガラスアンテナ。3. An electrically heated defogger having a heater wire and a plurality of bus bars for supplying power to the heater wire on a glass plate of the rear window fitted in a vehicle body opening for the rear window of an automobile, and an antenna conductor having a predetermined pattern. And a defogger and an antenna conductor are capacitively coupled to each other at a predetermined interval so that a DC current is not transmitted and received but a high frequency current is transmitted and received between at least a part of them and the defogger and the antenna conductor. In a glass antenna for vehicle, a choke coil and a coil for an automobile glass antenna according to claim 1 or 2 are connected in series to at least one of a bus bar and a positive electrode of a battery and another bus bar and a ground. A glass antenna for an automobile, characterized by being inserted as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10856292A JPH05278460A (en) | 1992-04-01 | 1992-04-01 | Coil for glass antenna for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10856292A JPH05278460A (en) | 1992-04-01 | 1992-04-01 | Coil for glass antenna for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05278460A true JPH05278460A (en) | 1993-10-26 |
Family
ID=14487978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10856292A Withdrawn JPH05278460A (en) | 1992-04-01 | 1992-04-01 | Coil for glass antenna for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05278460A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008103621A (en) * | 2006-10-20 | 2008-05-01 | Sumida Corporation | Coil unit for antennas |
| WO2015198800A1 (en) * | 2014-06-24 | 2015-12-30 | 旭硝子株式会社 | Antenna coil and antenna system |
| JP2016092141A (en) * | 2014-10-31 | 2016-05-23 | スミダコーポレーション株式会社 | Antenna coil device and method for manufacturing antenna coil device |
| JP2019161233A (en) * | 2019-04-24 | 2019-09-19 | スミダコーポレーション株式会社 | Antenna coil device |
-
1992
- 1992-04-01 JP JP10856292A patent/JPH05278460A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008103621A (en) * | 2006-10-20 | 2008-05-01 | Sumida Corporation | Coil unit for antennas |
| WO2015198800A1 (en) * | 2014-06-24 | 2015-12-30 | 旭硝子株式会社 | Antenna coil and antenna system |
| JPWO2015198800A1 (en) * | 2014-06-24 | 2017-04-20 | 旭硝子株式会社 | Antenna coil and antenna system |
| EP3147998A4 (en) * | 2014-06-24 | 2018-04-25 | Asahi Glass Company, Limited | Antenna coil and antenna system |
| US10374283B2 (en) | 2014-06-24 | 2019-08-06 | AGC Inc. | Coil for antenna and antenna system |
| JP2016092141A (en) * | 2014-10-31 | 2016-05-23 | スミダコーポレーション株式会社 | Antenna coil device and method for manufacturing antenna coil device |
| JP2019161233A (en) * | 2019-04-24 | 2019-09-19 | スミダコーポレーション株式会社 | Antenna coil device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0896384A2 (en) | Multi-band antenna suitable for use in a mobile radio device | |
| US5300940A (en) | Broadband antenna | |
| EP0893841B1 (en) | Helical antenna and method of producing same | |
| US5719547A (en) | Transformer with bifilar winding | |
| EP0953994A3 (en) | Multi-laminated inductor and manufacturing method thereof | |
| CN1619723A (en) | Surface mounted sensor | |
| JP4790348B2 (en) | Core assembly and surface mount electronic components | |
| CA2276144A1 (en) | Bead inductor and method of manufacturing same | |
| JPH05278460A (en) | Coil for glass antenna for automobile | |
| CA2274165A1 (en) | Method of manufacturing bead inductor and the bead inductor produced thereby | |
| JP3440529B2 (en) | High frequency coil for automotive glass antenna and automotive glass antenna | |
| US20040222743A1 (en) | Dielectric barrier discharge type low-pressure discharge lamp | |
| JP5490842B2 (en) | Surface mount inductor | |
| CN109887723A (en) | Balanced-to-unbalanced transformer and its manufacturing method | |
| EP3147998B1 (en) | Antenna coil and antenna system | |
| JP2002319810A (en) | Chip antenna | |
| JP2003508949A (en) | Flexible antenna radiator | |
| JP2003087031A (en) | Antenna | |
| US5250753A (en) | Wire assembly for electrically conductive circuits | |
| JP2001167937A (en) | Assembling coil for glass antenna | |
| JPH039375Y2 (en) | ||
| US20030088968A1 (en) | Helical antenna and method of making the same | |
| JP2003087030A (en) | Vehicle-mounted antenna | |
| JPS5914618A (en) | Coil apparatus | |
| CN208862159U (en) | Multiband aerial bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990608 |