JPH08222441A - High-frequency coil - Google Patents
High-frequency coilInfo
- Publication number
- JPH08222441A JPH08222441A JP4499895A JP4499895A JPH08222441A JP H08222441 A JPH08222441 A JP H08222441A JP 4499895 A JP4499895 A JP 4499895A JP 4499895 A JP4499895 A JP 4499895A JP H08222441 A JPH08222441 A JP H08222441A
- Authority
- JP
- Japan
- Prior art keywords
- drum core
- core
- frequency coil
- groove
- high frequency
- 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.)
- Granted
Links
- 230000004907 flux Effects 0.000 abstract description 9
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 11
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F2017/0053—Printed inductances with means to reduce eddy currents
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複数の端子が植設され
たベースにドラムコアが装着され、回路基板等に、実装
される高周波コイルの構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a high frequency coil in which a drum core is mounted on a base on which a plurality of terminals are implanted and which is mounted on a circuit board or the like.
【０００２】[0002]
【従来の技術】図４は従来の高周波コイルの上面図でケ
ースとキャップコアを取り外した状態を示し、図５は従
来の高周波コイルの部分断面側面図を示している。従来
の高周波コイルは、合成樹脂からなるベース４１の対向
する側面に、それぞれ複数の端子４２を設けている。端
子４２は、板状の金属片からなり、一端をベース４１内
に埋設し、他端をベース４１の側面から引き出してい
る。ベース４１の上面に、収納部４３が設けられてい
る。収納部４３には、チップコンデンサ４４が収納さ
れ、チップコンデンサの電極４５が収納部４３の底面に
露呈した端子に接続される。このベース４１の上面の中
央にドラムコア４６が接着される。ドラムコア４６は、
フェライトからなり、軸の一端に上鍔４７を形成し、軸
の他端に下鍔４８を形成して上鍔４７と下鍔４８の間に
溝４９が形成される。そして、ドラムコア４６の溝４９
にコイル５０が巻かれ、ドラムコア４６の下鍔４８の底
面が、ベース４１に接着剤等で接着される。コイル５０
のリードは、水平方向に配線し、端子４２にからげて半
田等で接続している。ドラムコア４６は、キャップコア
５１とケース５２によって覆われている。キャップコア
５１は、下側を開口し、上側を閉じてある有底円筒形の
フェライトからなり、周側面がケース５２に螺合し、回
転させることにより上下に動かせるようになっている。
また、キャップコア５０が螺合しているケース５１は、
銅などの金属からなり、ケースグランド端子５３がベー
ス４１の底面に折り曲げられている。そして、この高周
波コイルは、端子４２が回路基板の導体パターンに接続
される。2. Description of the Related Art FIG. 4 is a top view of a conventional high-frequency coil with a case and a cap core removed, and FIG. 5 is a partial cross-sectional side view of the conventional high-frequency coil. A conventional high-frequency coil has a plurality of terminals 42 on opposite sides of a base 41 made of synthetic resin. The terminal 42 is made of a plate-shaped metal piece, one end of which is embedded in the base 41 and the other end of which is pulled out from the side surface of the base 41. A storage portion 43 is provided on the upper surface of the base 41. A chip capacitor 44 is housed in the housing 43, and an electrode 45 of the chip capacitor is connected to a terminal exposed on the bottom surface of the housing 43. The drum core 46 is bonded to the center of the upper surface of the base 41. The drum core 46 is
An upper flange 47 is formed on one end of the shaft, and a lower flange 48 is formed on the other end of the shaft, and a groove 49 is formed between the upper flange 47 and the lower flange 48. Then, the groove 49 of the drum core 46
The coil 50 is wound around, and the bottom surface of the lower flange 48 of the drum core 46 is bonded to the base 41 with an adhesive or the like. Coil 50
The leads are wired in the horizontal direction and are connected to the terminals 42 by soldering or the like. The drum core 46 is covered with a cap core 51 and a case 52. The cap core 51 is made of a bottomed cylindrical ferrite whose opening is open on the lower side and closed on the upper side, and the peripheral side surface is screwed into the case 52 and can be moved up and down by rotating.
Further, the case 51 to which the cap core 50 is screwed,
The case ground terminal 53 is made of metal such as copper and is bent on the bottom surface of the base 41. Then, in the high frequency coil, the terminal 42 is connected to the conductor pattern of the circuit board.
【０００３】この種の高周波コイルは、小型化が望まれ
ており、年々小型化が進められている。この様に形成さ
れた高周波コイルを小型化する場合、ベース４１の厚さ
が薄くなり、ドラムコア４６の下鍔４８の底面が、チッ
プコンデンサの電極４５や端子４２やケースグランド端
子５３に、近接して配置される。従って、ドラムコア４
６から出る磁束を、チップコンデンサの電極４５や端子
４２やケースグランド端子５３が遮る為、渦電流損が発
生する。また、キャップコア５１の深さＨが深い場合
は、キャップコア５１を一番下の位置まで下げるとキャ
ップコア５１の開口端がコイル５０のリードに接触し、
断線を起しやすい。しかし、キャップコア５１の深さＨ
が浅い場合は、キャップコア５１を一番下の位置まで下
げても、キャップコア５１の開口端とベース４１に接着
される下鍔４８の上面の間にギャップＧが生じる。従っ
て、キャップコア５１の深さＨが浅い場合は、ドラムコ
ア４６から出る磁束が、ギャップＧから漏れる。この様
に、従来の高周波コイルは、渦電流損が発生したり、ギ
ャップＧから磁束が漏れたりすることによりＱの低下を
招き、高周波コイルとしての電気特性を著るしく低下さ
せてしまうという問題があった。This type of high frequency coil is desired to be miniaturized, and the miniaturization is being advanced year by year. When miniaturizing the high-frequency coil formed in this way, the thickness of the base 41 becomes thin, and the bottom surface of the lower flange 48 of the drum core 46 comes close to the electrode 45 of the chip capacitor, the terminal 42, and the case ground terminal 53. Are arranged. Therefore, the drum core 4
Since the magnetic flux emitted from 6 is blocked by the electrode 45 of the chip capacitor, the terminal 42, and the case ground terminal 53, eddy current loss occurs. Further, when the depth H of the cap core 51 is deep, when the cap core 51 is lowered to the lowest position, the open end of the cap core 51 contacts the lead of the coil 50,
Easy to break. However, the depth H of the cap core 51
If the depth is shallow, even if the cap core 51 is lowered to the lowest position, a gap G is formed between the open end of the cap core 51 and the upper surface of the lower collar 48 bonded to the base 41. Therefore, when the depth H of the cap core 51 is shallow, the magnetic flux emitted from the drum core 46 leaks from the gap G. As described above, in the conventional high frequency coil, eddy current loss occurs and magnetic flux leaks from the gap G, which causes a decrease in Q, resulting in a significant decrease in electrical characteristics as a high frequency coil. was there.
【０００４】[0004]
【発明が解決しようとする課題】本発明の課題は、渦電
流損や漏れ磁束を低減してＱを高くし、電気特性を著る
しく向上させた高周波コイルを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a high frequency coil in which the eddy current loss and the leakage flux are reduced to increase the Q and the electric characteristics are remarkably improved.
【０００５】[0005]
【課題を解決するための手段】本発明の高周波コイル
は、ドラムコアが軸と３枚以上の鍔を備え、鍔を軸に沿
って形成して鍔間に溝を形成してあり、ドラムコアの中
心軸をベースの主面に対して垂直にしてドラムコアを装
着し、ドラムコアの一番下の溝以外の所定の溝にコイル
を巻回し、ドラムコアをキャップコアで覆ったものであ
る。また、本発明の高周波コイルは、ドラムコアが、軸
と上鍔と中間鍔と下鍔を備え、上鍔と中間鍔と下鍔を軸
に沿って形成してそれぞれの鍔間に溝を形成してあり、
ドラムコアの下鍔とベースを装着し、ドラムコアの上鍔
と中間鍔の間に形成された溝にのみコイルを巻回し、ド
ラムコアをキャップコアで覆ったものである。さらに、
上鍔と中間鍔間に形成される溝と、下鍔と中間鍔間に形
成される溝を、おなじ幅にしたり、異なった幅にしたも
のである。In the high frequency coil of the present invention, the drum core is provided with a shaft and three or more flanges, and the flanges are formed along the axis to form a groove between the flanges. A drum core is mounted with its axis perpendicular to the main surface of the base, a coil is wound around a predetermined groove other than the bottom groove of the drum core, and the drum core is covered with a cap core. Further, in the high-frequency coil of the present invention, the drum core includes a shaft, an upper collar, an intermediate collar and a lower collar, and the upper collar, the intermediate collar and the lower collar are formed along the axis to form a groove between the collars. Yes,
The lower core and the base of the drum core are mounted, the coil is wound only in the groove formed between the upper and middle flanges of the drum core, and the drum core is covered with the cap core. further,
The groove formed between the upper collar and the intermediate collar and the groove formed between the lower collar and the intermediate collar have the same width or different widths.
【０００６】[0006]
【作用】本発明の高周波コイルは、下鍔と中間鍔の間に
形成された溝以外の所定の溝にコイルが巻回されている
ドラムコアを、キャップコアで覆っているので、磁気回
路が、上鍔、中間鍔、キャップコアに形成される。In the high frequency coil of the present invention, since the drum core, in which the coil is wound in a predetermined groove other than the groove formed between the lower flange and the intermediate flange, is covered with the cap core, the magnetic circuit is It is formed on the upper collar, the intermediate collar and the cap core.
【０００７】[0007]
【実施例】以下、本発明の高周波コイルの実施例を示す
図１及び図２を参照しながら説明する。図１は本発明の
高周波コイルの第１の実施例を示す上面図でケースとキ
ャップコアを取り外した状態を示す。図２は図１の部分
断面側面図である。図１、図２において、１１はベー
ス、１２は端子、１３は収納部、１４はチップコンデン
サ、１５はチップコンデンサの電極、１６はドラムコア
である。ベース１１は、合成樹脂を用いて角形に形成
し、対向する側面に引き出された複数の端子１２を設け
ている。端子１２は、板状の金属片からなり、一端をベ
ース１１内に埋設し、他端をベース１１の側面から引出
している。ベース１１の上面に、収納部１３が設けられ
ている。収納部１３には、チップコンデンサ１４が収納
され、チップコンデンサの電極１５が、収納部１３の底
面に露呈した端子の一部分に接続される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the high frequency coil of the present invention will be described below with reference to FIGS. FIG. 1 is a top view showing a first embodiment of a high frequency coil of the present invention, showing a state in which a case and a cap core are removed. 2 is a partial cross-sectional side view of FIG. In FIGS. 1 and 2, 11 is a base, 12 is a terminal, 13 is a housing portion, 14 is a chip capacitor, 15 is an electrode of the chip capacitor, and 16 is a drum core. The base 11 is formed in a rectangular shape using synthetic resin, and is provided with a plurality of terminals 12 that are drawn out on opposite side surfaces. The terminal 12 is made of a plate-shaped metal piece, one end of which is embedded in the base 11 and the other end of which is drawn out from the side surface of the base 11. A storage portion 13 is provided on the upper surface of the base 11. The chip capacitor 14 is housed in the housing portion 13, and the electrode 15 of the chip capacitor is connected to a part of the terminal exposed on the bottom surface of the housing portion 13.
【０００８】このベース１１の上面の中央にフェライト
からなるドラムコア１６が接着される。ドラムコア１６
は、いわゆる三枚鍔のものであって、軸に沿って上鍔１
７、中間鍔１８、下鍔１９が異なった間隔で形成され
る。そして、上鍔１７と中間鍔１８との間には、上溝２
０が形成され、中間鍔１８と下鍔１９との間には、下溝
２１が形成される。上溝２０の幅は、下溝２１の幅より
も広く設けられている。このドラムコア１６は、中心軸
をベースの主面に対して垂直にして、下鍔１９の底面と
ベース１１の上面を接着している。そして、ドラムコア
１６の上溝２０にだけ、コイル２２が巻かれる。コイル
２２のリードは、上溝２０から下方に引き出され、所定
の端子１２にからげられ、半田等で接続される。そし
て、コイル２２が巻かれたドラムコア１６は、キャップ
コア２３に覆われる。キャップコア２３は、下側を開口
し、上側を閉じてある有底円筒形のフェライトからな
り、周側面がケース２４に螺合し、回転させることによ
り上下に動かせるようになっている。キャップコア２３
の深さＨは、一番下の位置まで下げた場合に、中間鍔１
８を完全に覆い、キャップコア２３の開口端がドラムコ
ア１６の下溝２１よりも上の位置にある深さに設定して
ある。ケース２４は、銅などの金属からなり、ケースグ
ランド端子２５を、ベース１１の底面に折り曲げること
によりベース１１に取付けてある。そして、この高周波
コイルは、端子１２が回路基板の導体パターンに接続さ
れる。A drum core 16 made of ferrite is bonded to the center of the upper surface of the base 11. Drum core 16
Is a so-called three-piece tsuba, and the upper tsuba 1 along the axis
7, the intermediate collar 18 and the lower collar 19 are formed at different intervals. The upper groove 2 is provided between the upper flange 17 and the intermediate flange 18.
0 is formed, and a lower groove 21 is formed between the intermediate flange 18 and the lower flange 19. The width of the upper groove 20 is wider than the width of the lower groove 21. In the drum core 16, the central axis is perpendicular to the main surface of the base, and the bottom surface of the lower collar 19 and the top surface of the base 11 are bonded together. The coil 22 is wound only on the upper groove 20 of the drum core 16. The lead of the coil 22 is pulled out downward from the upper groove 20, is twisted to a predetermined terminal 12, and is connected with solder or the like. The drum core 16 around which the coil 22 is wound is covered with the cap core 23. The cap core 23 is made of a bottomed cylindrical ferrite whose bottom is opened and whose top is closed. The peripheral side surface of the cap core 23 is screwed into the case 24 and can be moved up and down by rotating. Cap core 23
The depth H of the intermediate collar 1 when lowered to the lowest position
8 is completely covered, and the opening end of the cap core 23 is set to a depth above the lower groove 21 of the drum core 16. The case 24 is made of metal such as copper, and the case ground terminal 25 is attached to the base 11 by bending the bottom surface of the base 11. Then, in the high frequency coil, the terminal 12 is connected to the conductor pattern of the circuit board.
【０００９】図３は、本発明の高周波コイルの第２の実
施例を示す部分拡大断面図である。図３において、３１
はドラムコア、３２はキャップコアである。なお、図２
と同じ部分は同じ符号を付してある。ドラムコア３１
は、いわゆる四枚鍔のものであって、軸に沿って上鍔３
３、中間鍔３４、３５、下鍔３６が形成される。そし
て、上鍔３３と中間鍔３４間、中間鍔３４と中間鍔３５
間、中間鍔３５と下鍔３６間に、それぞれ溝３７Ａ、３
７Ｂ、３７Ｃを形成している。なお、中間鍔３５と下鍔
３６間に形成された溝３７Ｃの幅は、他の溝３７Ａ、３
７Ｂの幅よりも狭くしてある。このドラムコア３１は、
中心軸をベースの主面に対して垂直にして、下鍔３６の
底面とベース１１の上面を接着している。そして、コイ
ル３８が、上鍔３３と中間鍔３４間に形成された溝３７
Ａに巻かれ、コイル３９が、中間鍔３４と中間鍔３５間
に形成された溝３７Ｂに巻かれる。ドラムコア３１を覆
うキャップコア３２の深さは、一番下の位置まで下げた
場合に、中間鍔３５を完全に覆い、キャップコア３２の
開口端が、ドラムコア３１の中間鍔３５と下鍔３６間に
形成された溝３７Ｃよりも上の位置にある深さに設定し
てある。FIG. 3 is a partially enlarged sectional view showing a second embodiment of the high frequency coil according to the present invention. In FIG. 3, 31
Is a drum core, and 32 is a cap core. Note that FIG.
The same parts as are denoted by the same reference numerals. Drum core 31
Is a so-called four-piece tsuba and has an upper tsuba 3 along the axis.
3, intermediate collars 34 and 35, and lower collar 36 are formed. Then, between the upper collar 33 and the intermediate collar 34, between the intermediate collar 34 and the intermediate collar 35.
Between the intermediate rim 35 and the lower rim 36, grooves 37A, 3
7B and 37C are formed. The width of the groove 37C formed between the intermediate flange 35 and the lower flange 36 is the same as that of the other grooves 37A, 3A.
It is narrower than the width of 7B. This drum core 31
The bottom surface of the lower collar 36 and the top surface of the base 11 are bonded with the central axis perpendicular to the main surface of the base. The coil 38 has a groove 37 formed between the upper flange 33 and the intermediate flange 34.
It is wound around A and the coil 39 is wound in a groove 37B formed between the intermediate collar 34 and the intermediate collar 35. The depth of the cap core 32 that covers the drum core 31 completely covers the intermediate flange 35 when the cap core 32 is lowered to the lowest position, and the opening end of the cap core 32 is between the intermediate flange 35 of the drum core 31 and the lower flange 36. The depth is set to a position higher than the groove 37C formed in.
【００１０】これらの様に形成された高周波コイルの４
５０ＫＨｚにおけるＱは、約１１０である。この高周波
コイルと同じインダクタンス値のコイル、同じ容量値の
チップコンデンサを持ち、それぞれの部品の材料が同じ
第５図のような構造の、従来の高周波コイルの４５０Ｋ
ＨｚにおけるＱが約５５であるので、著しくＱが向上し
ている。これは、磁気回路が、上鍔、中間鍔、キャップ
コアに形成されて、下鍔に磁束が流れないので、渦電流
損を低減できるからである。また、キャップコアを一番
下までさげた場合、キャップコアの開口端が、コイルが
巻かれた溝の下にある中間鍔まで覆って完全な閉磁路と
なるので、漏れ磁束も低減できるからでもある。4 of the high frequency coil formed as described above
The Q at 50 KHz is about 110. 450K of the conventional high frequency coil, which has a coil having the same inductance value as this high frequency coil and a chip capacitor having the same capacitance value, and the material of each component is the same as shown in FIG.
Since the Q at Hz is about 55, the Q is significantly improved. This is because the magnetic circuit is formed on the upper collar, the intermediate collar, and the cap core, and the magnetic flux does not flow to the lower collar, so that the eddy current loss can be reduced. Also, when the cap core is lowered to the bottom, the open end of the cap core covers the intermediate flange below the groove around which the coil is wound to form a completely closed magnetic circuit, so leakage flux can be reduced. is there.
【００１１】この様に、本発明の高周波コイルの実施例
を述べたが、本発明はこれらの実施例に限られるもので
はない。例えば、ドラムコアは、軸に沿って上鍔、中間
鍔、下鍔を等しい間隔に形成し、それぞれの鍔間に形成
される溝の幅を等しくしてもよい。その場合は、ドラム
コアの方向性がなくなるので生産性が良くなる。また、
端子は、ベースの底面から引出してあってもよい。さら
に、複数の中間鍔を有するドラムコアの場合は、コイル
が複数の溝にまたがって巻回されていてもよい。Although the embodiments of the high frequency coil of the present invention have been described above, the present invention is not limited to these embodiments. For example, in the drum core, the upper collar, the intermediate collar, and the lower collar may be formed at equal intervals along the axis, and the widths of the grooves formed between the respective collars may be equal. In that case, since the directionality of the drum core is lost, the productivity is improved. Also,
The terminals may be extended from the bottom surface of the base. Furthermore, in the case of a drum core having a plurality of intermediate flanges, the coil may be wound over a plurality of grooves.
【００１２】[0012]
【発明の効果】以上述べた様な本発明の高周波コイル
は、ドラムコアが、軸と３枚以上の鍔を備え、３枚以上
の鍔を軸に沿って形成してそれぞれの鍔間に溝を形成し
てあり、ドラムコアの中心軸をベースの主面に対して垂
直にしてドラムコアを装着し、該ドラムコアの一番下の
溝以外の所定の溝にコイルを巻回し、ドラムコアをキャ
ップコアで覆っているので、渦電流損や漏れ磁束を低減
してＱを高くし、電気特性を著るしく向上させることが
できる。また、キャップコアの開口端は、常にドラムコ
アの一番下の溝よりも上の位置にあるのでドラムコアに
巻回されたコイルのリードが断線することがない。As described above, in the high frequency coil of the present invention, the drum core is provided with the shaft and three or more flanges, three or more flanges are formed along the shaft, and grooves are formed between the respective flanges. The drum core is formed so that the center axis of the drum core is perpendicular to the main surface of the base, the drum core is mounted, the coil is wound around a predetermined groove other than the lowest groove of the drum core, and the drum core is covered with the cap core. Therefore, the eddy current loss and the leakage magnetic flux can be reduced to increase the Q, and the electrical characteristics can be significantly improved. Further, since the opening end of the cap core is always located above the lowest groove of the drum core, the lead of the coil wound around the drum core will not be disconnected.
【図１】 本発明の高周波コイルの第１の実施例を示す
上面図でケースとキャップコアを取外した状態である。FIG. 1 is a top view showing a first embodiment of a high-frequency coil according to the present invention with a case and a cap core removed.
【図２】 図１の部分断面側面図である。2 is a partial cross-sectional side view of FIG.
【図３】 本発明の高周波コイルの第２の実施例を示す
部分拡大断面図である。FIG. 3 is a partially enlarged cross-sectional view showing a second embodiment of the high frequency coil of the present invention.
【図４】 従来の高周波コイルの上面図である。FIG. 4 is a top view of a conventional high frequency coil.
【図５】 従来の高周波コイルの部分断面側面図であ
る。FIG. 5 is a partial cross-sectional side view of a conventional high frequency coil.
１１ ベース １２ 端子 １３ 収納部 １４ チップコンデンサ １５ チップコンデンサの電極 １６ ドラムコア 11 Base 12 Terminal 13 Storage 14 Chip Capacitor 15 Chip Capacitor Electrode 16 Drum Core
Claims (12)
の主面にコイルを巻回するドラムコアを装着した高周波
コイルにおいて、該ドラムコアは軸と複数の鍔を備え、
該複数の鍔を該軸に沿って形成して鍔間に溝を形成して
あり、該ドラムコアの中心軸をベースの主面に対して垂
直にして該ドラムコアを装着し、該ドラムコアの一番下
の溝以外の所定の溝にコイルを巻回し、該ドラムコアを
キャップコアで覆うことを特徴とする高周波コイル。1. A high frequency coil in which a plurality of terminals are planted in a base, and a drum core around which a coil is wound is mounted on a main surface of the base, the drum core having a shaft and a plurality of flanges,
The plurality of flanges are formed along the shaft to form a groove between the flanges, and the drum core is mounted with the central axis of the drum core perpendicular to the main surface of the base. A high-frequency coil characterized in that a coil is wound around a predetermined groove other than the lower groove and the drum core is covered with a cap core.
同じ間隔をおいて形成されている請求項１記載の高周波
コイル。2. The high frequency coil according to claim 1, wherein the plurality of flanges of the drum core are formed at equal intervals along an axis.
異なった間隔をおいて形成されている請求項１記載の高
周波コイル。3. The high frequency coil according to claim 1, wherein the plurality of flanges of the drum core are formed at different intervals along an axis.
ルが巻かれた溝の下にある鍔まで覆うことができる深さ
を有し、かつ該キャップコアの開口端が常に該ドラムコ
アの一番下の溝よりも上の位置にある請求項１、２、３
記載の高周波コイル。4. The cap core has such a depth that it can cover up to the brim below the groove in which the coil of the drum core is wound, and the open end of the cap core is always at the bottom of the drum core. 4. The position above the groove of 1, 2, 3
The described high frequency coil.
の主面にコイルを巻回するドラムコアを装着した高周波
コイルにおいて、該ドラムコアは、軸と上鍔と中間鍔と
下鍔を備え、該上鍔と該中間鍔と該下鍔を該軸に沿って
形成してそれぞれの鍔間に溝を形成してあり、該ドラム
コアの下鍔をベースに装着し、該ドラムコアの上鍔と中
間鍔の間に形成された溝だけにコイルを巻回し、該ドラ
ムコアをキャップコアで覆うことを特徴とする高周波コ
イル。5. A high frequency coil in which a plurality of terminals are planted in a base and a drum core around which a coil is wound is mounted on a main surface of the base, the drum core having a shaft, an upper flange, an intermediate flange and a lower flange. The upper flange, the intermediate flange, and the lower flange are formed along the shaft to form a groove between the respective flanges, and the lower flange of the drum core is mounted on a base, and the upper flange of the drum core is A high-frequency coil characterized in that a coil is wound only in a groove formed between intermediate flanges, and the drum core is covered with a cap core.
有している請求項５記載の高周波コイル。6. The high frequency coil according to claim 5, wherein the two grooves of the drum core have the same width.
を有している請求項５記載の高周波コイル。7. The high frequency coil according to claim 5, wherein the two grooves of the drum core have different widths.
鍔まで覆うことができる深さを有し、かつ該キャップコ
アの開口端が、常に該ドラムコアの中間鍔と下鍔の間に
形成された溝よりも上の位置にある請求項５、６、７記
載の高周波コイル。8. The cap core has a depth enough to cover the intermediate flange of the drum core, and the open end of the cap core is always formed between the intermediate flange and the lower flange of the drum core. The high frequency coil according to claim 5, 6 or 7, which is located above the groove.
の主面にコイルを巻回するドラムコアを装着した高周波
コイルにおいて、該ドラムコアは、軸と上鍔と下鍔と複
数の中間鍔を備え、該上鍔と該中間鍔と該下鍔を該軸に
沿って形成してそれぞれの鍔間に溝を形成してあり、該
ドラムコアの下鍔をベースに装着し、該ドラムコアの下
鍔と中間鍔の間に形成された溝以外の所定の溝にコイル
を巻回し、該ドラムコアをキャップコアで覆うことを特
徴とする高周波コイル。9. A high frequency coil having a plurality of terminals planted in a base and a drum core around which a coil is wound is mounted on a main surface of the base, wherein the drum core includes a shaft, an upper collar, a lower collar and a plurality of intermediate collars. The upper flange, the intermediate flange, and the lower flange are formed along the shaft to form a groove between the flanges, and the lower flange of the drum core is mounted on the base, and the lower flange of the drum core is attached. A high-frequency coil characterized in that a coil is wound around a predetermined groove other than the groove formed between the collar and the intermediate collar, and the drum core is covered with a cap core.
を有している請求項９記載の高周波コイル。10. The high frequency coil according to claim 9, wherein the plurality of grooves of the drum core have the same width.
幅を有している請求項９記載の高周波コイル。11. The high frequency coil according to claim 9, wherein the plurality of grooves of the drum core have different widths.
番下の中間鍔まで覆うことができる深さを有し、かつ該
キャップコアの開口端が常に該ドラムコアの下鍔と中間
鍔の間に形成された溝よりも上の位置にある請求項９、
１０、１１記載の高周波コイル。12. The cap core has a depth capable of covering up to the lowermost intermediate flange of the drum core, and the open end of the cap core is always between the lower and intermediate flanges of the drum core. 10. A position above the formed groove,
The high frequency coil according to 10, 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7044998A JP3027697B2 (en) | 1995-02-10 | 1995-02-10 | High frequency coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7044998A JP3027697B2 (en) | 1995-02-10 | 1995-02-10 | High frequency coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08222441A true JPH08222441A (en) | 1996-08-30 |
| JP3027697B2 JP3027697B2 (en) | 2000-04-04 |
Family
ID=12707102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7044998A Expired - Fee Related JP3027697B2 (en) | 1995-02-10 | 1995-02-10 | High frequency coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3027697B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100359404B1 (en) * | 1999-12-06 | 2002-11-04 | 삼화전자공업 주식회사 | Ferrite core for choke coil |
| EP1808871A1 (en) | 2006-01-17 | 2007-07-18 | Sumida Corporation | Coil component |
| JP2012033687A (en) * | 2010-07-30 | 2012-02-16 | Toko Inc | Surface mount transformer for corner sensor |
| WO2013061220A1 (en) | 2011-10-25 | 2013-05-02 | Brusa Elektronik Ag | Inductive component and use |
-
1995
- 1995-02-10 JP JP7044998A patent/JP3027697B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100359404B1 (en) * | 1999-12-06 | 2002-11-04 | 삼화전자공업 주식회사 | Ferrite core for choke coil |
| EP1808871A1 (en) | 2006-01-17 | 2007-07-18 | Sumida Corporation | Coil component |
| US7567161B2 (en) | 2006-01-17 | 2009-07-28 | Sumida Corporation | Coil component |
| JP2012033687A (en) * | 2010-07-30 | 2012-02-16 | Toko Inc | Surface mount transformer for corner sensor |
| WO2013061220A1 (en) | 2011-10-25 | 2013-05-02 | Brusa Elektronik Ag | Inductive component and use |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3027697B2 (en) | 2000-04-04 |
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