JPH07192925A - Bead inductor - Google Patents
Bead inductorInfo
- Publication number
- JPH07192925A JPH07192925A JP33097293A JP33097293A JPH07192925A JP H07192925 A JPH07192925 A JP H07192925A JP 33097293 A JP33097293 A JP 33097293A JP 33097293 A JP33097293 A JP 33097293A JP H07192925 A JPH07192925 A JP H07192925A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- columnar magnetic
- hole
- groove
- columnar
- 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- Withdrawn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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、面実装に適したビーズ
インダクタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bead inductor suitable for surface mounting.
【０００２】[0002]
【従来の技術】従来のビーズインダクタは、図１１に示
すように、貫通孔ａを有する柱状磁性コアｂと、導線ｃ
を貫通孔ａに通したコイルとから構成されており、妨害
電波除去用として多用されている。2. Description of the Related Art As shown in FIG. 11, a conventional bead inductor has a columnar magnetic core b having a through hole a and a conductive wire c.
And a coil that passes through the through hole a, and is often used for removing interfering radio waves.
【０００３】[0003]
【発明が解決しようとする課題】上述した従来のビーズ
インダクタは、これを基板に実装する場合、貫通孔ａか
ら導出された導線ｃの両端を折曲して基板の導電部に接
続しなければならないので、手作業に頼らざるを得ず、
実装作業が面倒であるという欠点があった。In the conventional bead inductor described above, when the bead inductor is mounted on the substrate, both ends of the conductor wire c led out from the through hole a must be bent and connected to the conductive portion of the substrate. I have no choice but to resort to manual work,
There was a drawback that the mounting work was troublesome.
【０００４】本発明は、従来のビーズインダクタのこの
ような欠点に鑑みてなされたもので、小型化することが
できるとともに面実装が容易であるビーズインダクタを
提供することをその目的とするものである。The present invention has been made in view of such drawbacks of the conventional bead inductors, and an object thereof is to provide a bead inductor which can be downsized and can be easily surface-mounted. is there.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに、請求項１記載の発明は、柱状磁性コアとコイルと
から成り、該柱状磁性コアは、対向する両端面に開口す
る１個の貫通孔と、一端が該貫通孔に連なり他端が柱状
磁性コアの端縁に連なって柱状磁性コアの両端面に形成
された溝と、該溝の他端に対応する柱状磁性コアの周面
の端部に形成された外部電極を有するものであり、前記
コイルは、前記貫通孔に挿通配置された導線から成り、
該導線の前記両端面からの導出端は折曲され、柱状磁性
コアの溝内に配置されて前記外部電極に接続されたこと
を特徴とし、請求項２記載の発明は、柱状磁性コアとコ
イルとから成り、該柱状磁性コアは対向する両端面に開
口する１個の貫通孔と、一端が該貫通孔に連なり他端が
柱状磁性コアの端縁に連なって柱状磁性コアの両端面に
形成された溝を有するものであり、前記コイルは、前記
貫通孔及び溝に連続して形成された導電パターンから成
り、該導電パターンの両端は、前記溝に対応する柱状磁
性コアの周面の端部に形成された外部電極に接続された
ことを特徴とし、請求項３記載の発明は、柱状磁性コア
とコイルとから成り、該柱状磁性コアは、対向する両端
面に開口する複数個の貫通孔と、一端が貫通孔の一つに
連なり他端が柱状磁性コアの端縁に連なって柱状磁性コ
アの一端面に形成された第１の溝、一端が該貫通孔の他
の一つの連なり他端が柱状磁性コアの端縁に連なって柱
状磁性コアの他端面に形成された第２の溝及び柱状磁性
コアの両端面に形成され隣接する貫通孔を接続する第３
の溝と、第１及び第２の溝の他端に対応する柱状磁性コ
アの周面の端部に形成された外部電極を有するものであ
り、前記コイルは、前記複数個の貫通孔並びに第１，第
２及び第３の溝に挿入されて巻回された導線から成り、
該導線の両端は前記外部電極に接続されたことを特徴と
し、請求項４記載の発明は、柱状磁性コアとコイルとか
ら成り、該柱状磁性コアは、対向する両端面に開口する
複数個の貫通孔と、一端が該貫通孔の１つに連なり他端
が柱状磁性コアの端縁が柱状磁性コアの端縁に連なって
柱状磁性コアの他端面に形成された第２溝及び隣接する
貫通孔を接続して柱状磁性コアの両端面に形成された第
３の溝を有するものであり、前記コイルは、前記貫通孔
及び溝に連続して形成された導電パターンから成り、該
導電パターンの両端は、前記第１及びた第２の溝に対応
する柱状磁性コアの周面の端部に形成された外部電極に
接続されたことを特徴とする。In order to achieve the above object, the invention according to claim 1 comprises a columnar magnetic core and a coil, and the columnar magnetic core is one open on both end faces facing each other. Through hole, a groove formed on both end surfaces of the columnar magnetic core with one end connected to the through hole and the other end connected to the edge of the columnar magnetic core, and the circumference of the columnar magnetic core corresponding to the other end of the groove. It has an external electrode formed at the end of the surface, the coil comprises a conductive wire inserted through the through hole,
3. The columnar magnetic core and the coil according to claim 2, wherein the lead-out ends of the lead wires from the both end faces are bent and arranged in the groove of the columnar magnetic core to be connected to the external electrode. The columnar magnetic core is formed on both end faces of the columnar magnetic core with one through hole opening at both end faces facing each other, and one end connected to the through hole and the other end connected to the edge of the columnar magnetic core. The coil comprises a conductive pattern formed continuously with the through hole and the groove, and both ends of the conductive pattern are ends of the peripheral surface of the columnar magnetic core corresponding to the groove. The invention according to claim 3 is characterized by comprising a columnar magnetic core and a coil, wherein the columnar magnetic core has a plurality of penetrating openings opened at opposite end faces thereof. Hole and one end is connected to one of the through holes and the other end is columnar A first groove formed on one end face of the columnar magnetic core connected to the edge of the columnar magnetic core, one end of the through hole being another one of the grooves, and the other end connected to the edge of the columnar magnetic core. A second groove formed on the other end surface and a third groove formed on both end surfaces of the columnar magnetic core for connecting adjacent through holes
And an external electrode formed at the end of the peripheral surface of the columnar magnetic core corresponding to the other ends of the first and second grooves, and the coil comprises the plurality of through holes and the first through hole. 1, consisting of a conductor wire wound in the second and third grooves,
The both ends of the conducting wire are connected to the external electrodes, and the invention according to claim 4 is composed of a columnar magnetic core and a coil, and the columnar magnetic core has a plurality of openings on opposite end faces. A through hole, a second groove formed on the other end surface of the columnar magnetic core with one end connected to one of the through holes and the other end connected to the edge of the columnar magnetic core at the other end, and an adjacent penetrating hole. A third groove is formed by connecting the holes to both end surfaces of the columnar magnetic core, and the coil comprises a conductive pattern formed continuously with the through hole and the groove. Both ends are connected to external electrodes formed at ends of the peripheral surface of the columnar magnetic core corresponding to the first and second grooves.
【０００６】[0006]
【作用】請求項１及び３記載の発明において、柱状磁性
コアの両端面に露出する導線は、溝内に収容されるの
で、他の電気部品との接触による不具合が生じない。ま
た、導線の両端は溝内に収容されるので、溝内に挿入さ
れる導電ペーストの焼き付けにより外部電極と確実に接
続される。In the inventions of claims 1 and 3, since the conductor wire exposed on both end faces of the columnar magnetic core is housed in the groove, no trouble occurs due to contact with other electric parts. Further, since both ends of the conductive wire are accommodated in the groove, the conductive paste inserted in the groove is securely connected to the external electrode.
【０００７】請求項２及び４記載の発明において、柱状
磁性コアの貫通孔及び溝に導電パターンが形成されるの
で、導電パターンの膜厚が厚く、電流容量が増大する。In the inventions according to claims 2 and 4, since the conductive pattern is formed in the through hole and groove of the columnar magnetic core, the film thickness of the conductive pattern is large and the current capacity is increased.
【０００８】また導電パターンの他の電気部品との接触
による不具合を生じない。Further, no trouble occurs due to contact of the conductive pattern with other electric parts.
【０００９】[0009]
【実施例】以下に本発明の実施例を図面を参照して説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１乃至図４は、請求項１記載の発明の一
実施例を示す。1 to 4 show an embodiment of the invention described in claim 1.
【００１１】同図において、１は例えばフェライトから
成る柱状磁性コア、２はコイルを構成する導線である。
磁性コア１は、円柱状に形成されたもので、その中心線
上に両端面３，３に開口する１個の貫通孔４が形成さ
れ、両端面３，３には、一端が貫通孔４に連なり、他端
が磁性コア１の端縁に連なる溝５，５が形成されてい
る。磁性コア１の貫通孔４及び溝５，５に導電ペースト
を挿入し、貫通孔４に例えば半田メッキ銅線を用いた導
線２を挿通して貫通孔４からの導出端を折曲して溝５，
５内に配置する。溝５，５は導線２が入る深さを有す
る。溝５，５に各対応する磁性コア１の周面の端部にも
導電ペーストを付着する。この導電ペーストは、磁性コ
ア１がころがらないように中間部から両端部に向って厚
く、表面が平面になるように付着する。以上のように作
成した後、前記導電ペーストを焼き付けると、導線２
は、導電ペーストを焼き付けて形成した導電材６1 によ
り貫通孔４及び溝５，５内において磁性コア１に固着さ
れ、また周面に導電ペーストを焼き付けて形成した導電
層６2 ，６2 に接続される。導電層６2 ，６2 は、外部
電極７，７となり、導線２とは溝５，５に挿入されて焼
き付けられた導電材６1 の介在により確実に接続され
る。In the figure, 1 is a columnar magnetic core made of, for example, ferrite, and 2 is a conducting wire forming a coil.
The magnetic core 1 is formed in a cylindrical shape, and one through hole 4 that opens to both end faces 3 and 3 is formed on the center line of the magnetic core 1. One end of each end face 3 and 3 is formed as the through hole 4. Grooves 5 and 5 which are continuous and whose other end is continuous with the edge of the magnetic core 1 are formed. A conductive paste is inserted into the through-hole 4 and the grooves 5 and 5 of the magnetic core 1, the conductor 2 made of, for example, a solder-plated copper wire is inserted into the through-hole 4, and the lead-out end from the through-hole 4 is bent to form the groove. 5,
Place within 5. The grooves 5 and 5 have a depth into which the conductive wire 2 is inserted. The conductive paste is also attached to the end portions of the peripheral surface of the magnetic core 1 corresponding to the grooves 5 and 5. This conductive paste is attached such that the magnetic core 1 is thick from the intermediate portion toward both ends so that the magnetic core 1 does not roll, and the surface is flat. When the conductive paste is baked after the above-described preparation, the conductive wire 2
Is fixed to the magnetic core 1 in the through holes 4 and the grooves 5 and 5 by the conductive material 6 1 formed by baking the conductive paste, and the conductive layers 6 2 and 6 2 formed by baking the conductive paste on the peripheral surface are formed. Connected. The conductive layers 6 2 and 6 2 become the external electrodes 7 and 7, and are reliably connected to the conductor 2 by the interposition of the conductive material 6 1 inserted into the grooves 5 and 5 and baked.
【００１２】図５は、図１乃至図４に示す実施例の変形
例である。FIG. 5 is a modification of the embodiment shown in FIGS. 1 to 4.
【００１３】このビーズインダクタは、角柱状磁性コア
１を用いたもので、これ以外は前記実施例と同じ構造を
有する。This bead inductor uses a prismatic magnetic core 1 and has the same structure as that of the above embodiment except for this.
【００１４】図６及び図７は、請求項２記載の発明の一
実施例を示す。FIG. 6 and FIG. 7 show an embodiment of the invention described in claim 2.
【００１５】この実施例の磁性コア１は、図４に示すも
のと同じであり、この磁性コア１の貫通孔４に導電ペー
スト８1 を隙間なく充填し、磁性コア１の両端面３，３
の溝５，５に溝上端まで導電ペースト８2 を充填し、溝
５，５に対応する磁性コア１の周面の端部に導電ペース
ト８3 ，８3 を付着し、焼き付ける。この導電ペースト
８1 ８2 の焼き付けにより貫通孔４及び溝５，５内に導
電パターン９が形成され、導電ペースト８3 の焼き付け
により導電パターン９の両端に接続される外部電極７，
７が形成される。The magnetic core 1 of this embodiment is the same as that shown in FIG. 4, and the through holes 4 of the magnetic core 1 are filled with the conductive paste 8 1 without any gaps so that both end faces 3, 3 of the magnetic core 1 are filled.
The grooves 5 and 5 are filled with the conductive paste 8 2 up to the upper ends of the grooves, and the conductive pastes 8 3 and 8 3 are attached to the ends of the peripheral surface of the magnetic core 1 corresponding to the grooves 5 and 5 and baked. By baking the conductive paste 8 1 8 2 , a conductive pattern 9 is formed in the through holes 4 and the grooves 5 and 5, and by baking the conductive paste 8 3 , external electrodes 7 connected to both ends of the conductive pattern 9 are formed.
7 is formed.
【００１６】図８は、請求項３及び４記載の発明に用い
る磁性コア１の一例を示す。FIG. 8 shows an example of the magnetic core 1 used in the invention described in claims 3 and 4.
【００１７】この実施例の角柱状の磁性コア１は、例え
ば３個の貫通孔４1 ４2 及び４3 を有し、磁性コア１の
一端面３1 には、１端が貫通孔４1 に連なり、他端が磁
性コア１の下面の端縁に連なる溝５1 と、貫通孔４2 と
４3 を接続する溝５2 が形成されており、他端面３2 に
は、貫通孔４1 と４2 を接続する溝５3 と、一端が貫通
孔４3 に連なり、他端が磁性コア１の下面の端縁に連な
る溝５4 が形成されている。The prismatic magnetic core 1 of this embodiment has, for example, three through holes 4 1 4 2 and 4 3 and one end face 3 1 of the magnetic core 1 has one end having a through hole 4 1 in succession, the groove 5 1 the other end connected to the lower surface of the edge of the magnetic core 1, the through-holes 4 2 and 4 3 are grooves 5 2 connected is formed, and on the other end face 3 2, through holes 4 a groove 5 3 connected 1 and 4 2, one end contiguous with the through-holes 4 3, the other end a groove 5 4 continuous to the lower surface of the edge of the magnetic core 1 is formed.
【００１８】請求項３記載のビーズインダクタは次のよ
うに作成される。一本の導線２を、図８に示す磁性コア
１の一端面３1 から貫通孔４1 ，溝５3 ，貫通孔４2 ，
溝５2 及び貫通孔４3 に挿入して１．５巻回のコイルを
形成する。導線２の両端は、溝５1 及び５4 に挿入す
る。この導線４の挿入前に図１乃至図３の実施例と同様
に貫通孔４1,４2 及び４3 と溝５1,５2 ，５3 及び５4
に導電ペーストを挿入し、また溝５1 及び溝５4 に連な
る磁性コア１の下面の端部に導電ペーストを付着してお
く。次に、導電ペーストを焼き付けると、図９に示すよ
うに導線２は、焼き付けにより形成された導電材６1 に
より貫通孔４1,４2,４3,及び溝５1,５2,５3,,５4 内に
おいて磁性コア１に固着され、また周面に焼き付けられ
た導電層６2,６2 と接続される。この導電層６2,６2
は、外部電極７，７であり、導線２とは溝５1 ，５4 に
挿入されて焼き付けられた導電材６1 の介在により確実
に接続される。The bead inductor according to claim 3 is manufactured as follows. A single conductor 2 is formed from one end face 3 1 of the magnetic core 1 shown in FIG. 8 to a through hole 4 1 , a groove 5 3 , a through hole 4 2 ,
The coil is inserted into the groove 5 2 and the through hole 4 3 to form a coil of 1.5 turns. Both ends of the conductor 2 is inserted into the groove 51 and 5 4. Before insertion of the conducting wire 4, the through holes 4 1 , 4 2 and 4 3 and the grooves 5 1 , 5 2 , 5 3 and 5 4 are formed as in the embodiment of FIGS.
The conductive paste is inserted in the above, and the conductive paste is attached to the end portion of the lower surface of the magnetic core 1 which is continuous with the groove 5 1 and the groove 5 4 . Next, when the conductive paste is baked, as shown in FIG. 9, the conductive wire 2 is formed of the conductive material 6 1 by baking so that the through holes 4 1 , 4 2 , 4 3 , and the grooves 5 1 , 5 2 , 5 3 are formed. , 5 4 are fixed to the magnetic core 1 and are connected to the conductive layers 6 2 and 6 2 printed on the peripheral surface. This conductive layer 6 2 , 6 2
Are external electrodes 7 and 7, which are surely connected to the conductor 2 by the interposition of the conductive material 6 1 inserted into the grooves 5 1 and 5 4 and baked.
【００１９】図１０は、請求項４記載のビーズインダク
タの一実施例を示す。FIG. 10 shows an embodiment of the bead inductor according to the present invention.
【００２０】コイルは、図８に示す磁性コア１の貫通孔
４1,４2 及び４2 に隙間なく充填し、溝５1,５2,５3 及
び５4 に挿入した導電ペーストを焼き付けて形成した導
電パターン９である。導電パターン９の両端は、磁性コ
ア１の下面に導電ペーストを焼き付けて形成した外部電
極７に接続される。The coil is filled in the through holes 4 1 , 4 2 and 4 2 of the magnetic core 1 shown in FIG. 8 without any gap, and the conductive paste inserted in the grooves 5 1 , 5 2 , 5 3 and 5 4 is baked. It is the formed conductive pattern 9. Both ends of the conductive pattern 9 are connected to external electrodes 7 formed by baking a conductive paste on the lower surface of the magnetic core 1.
【００２１】図９及び図１０に示すビーズインダクタ
は、いずれもコイル１．５巻回であるので、図１及び図
５に示すものより高いインピーダンスであり、障害波除
去用に使用したとき、一層有効である。Since the bead inductors shown in FIGS. 9 and 10 each have 1.5 turns of the coil, they have higher impedance than those shown in FIGS. 1 and 5, and when used for removing disturbance waves, It is valid.
【００２２】[0022]
【発明の効果】本発明は、上述のような構成を有するも
ので。従来のものに比べてプリント基板に実装すると
き、その作業が容易であって、自動化することができ、
また小型化することができるという効果を有し、更に、
他の電気部品との接触による不具合を生じないという効
果を有する。The present invention has the above-mentioned structure. Compared with the conventional one, when it is mounted on a printed circuit board, its work is easy and it can be automated.
In addition, it has the effect that it can be miniaturized.
This has the effect of not causing a problem due to contact with other electric components.
【図１】 請求項１記載の発明の一実施例の斜視図1 is a perspective view of an embodiment of the invention according to claim 1;
【図２】 図１のII−II線断面図FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】 図１の底面図FIG. 3 is a bottom view of FIG.
【図４】 図１に示す実施例の磁性コアの斜視図FIG. 4 is a perspective view of the magnetic core of the embodiment shown in FIG.
【図５】 図１に示す実施例の変形例を示す斜視図5 is a perspective view showing a modified example of the embodiment shown in FIG.
【図６】 請求項２記載の発明の一実施例の斜視図FIG. 6 is a perspective view of an embodiment of the invention according to claim 2;
【図７】 図６のVII −VII 線断面図FIG. 7 is a sectional view taken along line VII-VII of FIG.
【図８】 請求項３及び４記載の発明に使用する磁性
コアの斜視図FIG. 8 is a perspective view of a magnetic core used in the invention according to claims 3 and 4.
【図９】 請求項３記載の発明の一実施例の斜視図FIG. 9 is a perspective view of an embodiment of the invention according to claim 3;
【図１０】 請求項４記載の発明の一実施例の斜視図FIG. 10 is a perspective view of an embodiment of the invention according to claim 4;
【図１１】 従来のビーズインダクタの斜視図FIG. 11 is a perspective view of a conventional bead inductor.
１ 柱状磁性コア ２ 導線 ３ 端面 ４，４1,４2 ，４3 貫通孔 ５1,５2,５3,５4 溝 ６1
導電材 ６2 導電層 ７ 外部電極 ８1,８2,８3 導電ペースト ９ 導電
パターン1 Columnar magnetic core 2 Conductive wire 3 End face 4, 4 1 , 4 2 , 4 3 Through hole 5 1 , 5 2 , 5 3 , 5 4 Groove 6 1
Conductive material 6 2 Conductive layer 7 External electrode 8 1 , 8 2 , 8 3 Conductive paste 9 Conductive pattern
Claims (4)
状磁性コアは、対向する両端面に開口する１個の貫通孔
と、一端が該貫通孔に連なり他端が柱状磁性コアの端縁
に連なって柱状磁性コアの両端面に形成された溝と、該
溝の他端に対応する柱状磁性コアの周面の端部に形成さ
れた外部電極を有するものであり、前記コイルは、前記
貫通孔に挿通配置された導線から成り、該導線の前記両
端面からの導出端は折曲され、柱状磁性コアの溝内に配
置されて前記外部電極に接続されたことを特徴とするビ
ーズインダクタ。1. A column-shaped magnetic core and a coil, wherein the column-shaped magnetic core has one through-hole that opens at opposite end surfaces, and one end is connected to the through-hole and the other end is an edge of the column-shaped magnetic core. And a groove formed on both end faces of the columnar magnetic core in a continuous manner, and an external electrode formed on an end portion of the peripheral face of the columnar magnetic core corresponding to the other end of the groove. A bead inductor comprising a conductor wire inserted through a through hole, wherein the lead-out ends of the conductor wire from the both end faces are bent and arranged in a groove of a columnar magnetic core and connected to the external electrode. .
状磁性コアは対向する両端面に開口する１個の貫通孔
と、一端が該貫通孔に連なり他端が柱状磁性コアの端縁
に連なって柱状磁性コアの両端面に形成された溝を有す
るものであり、前記コイルは、前記貫通孔及び溝に連続
して形成された導電パターンから成り、該導電パターン
の両端は、前記溝に対応する柱状磁性コアの周面の端部
に形成された外部電極に接続されたことを特徴とするビ
ーズインダクタ。2. A column-shaped magnetic core and a coil, wherein the column-shaped magnetic core has one through-hole opening at both end surfaces facing each other, one end connected to the through-hole, and the other end at an edge of the column-shaped magnetic core. The columnar magnetic core has grooves continuously formed on both end surfaces of the columnar magnetic core, and the coil comprises a conductive pattern formed continuously with the through hole and the groove, and both ends of the conductive pattern are formed in the groove. A bead inductor connected to an external electrode formed at an end of a peripheral surface of a corresponding columnar magnetic core.
状磁性コアは、対向する両端面に開口する複数個の貫通
孔と、一端が該貫通孔の一つに連なり他端が柱状磁性コ
アの端縁に連なって柱状磁性コアの一端面に形成された
第１の溝、一端が該貫通孔の他の一つの連なり他端が柱
状磁性コアの端縁に連なって柱状磁性コアの他端面に形
成された第２の溝及び柱状磁性コアの両端面に形成され
隣接する貫通孔を接続する第３の溝と、第１及び第２の
溝の他端に対応する柱状磁性コアの周面の端部に形成さ
れた外部電極を有するものであり、前記コイルは、前記
複数個の貫通孔並びに第１，第２及び第３の溝に挿入さ
れて巻回された導線から成り、該導線の両端は前記外部
電極に接続されたことを特徴とするビーズインダクタ。3. A columnar magnetic core and a coil, wherein the columnar magnetic core has a plurality of through holes opened at opposite end surfaces, one end of which is connected to one of the through holes, and the other end of which is a columnar magnetic core. A first groove formed on one end surface of the columnar magnetic core in a row with the end edge of the columnar magnetic core And a third groove formed on both end surfaces of the columnar magnetic core formed in the second groove and connecting adjacent through holes, and a peripheral surface of the columnar magnetic core corresponding to the other ends of the first and second grooves. An external electrode formed at an end of the coil, the coil comprising a plurality of through holes and a conductive wire wound into the first, second and third grooves and wound. A bead inductor, wherein both ends of are connected to the external electrodes.
状磁性コアは、対向する両端面に開口する複数個の貫通
孔と、一端が該貫通孔の１つに連なり他端が柱状磁性コ
アの端縁に連なって柱状磁性コアの一端面に形成された
第１の溝、一端が該貫通孔の他の１つに連なり他端が柱
状磁性コアの端縁に連なって柱状磁性コアの他端面に形
成された第２溝及び隣接する貫通孔を接続して柱状磁性
コアの両端面に形成された第３の溝を有するものであ
り、前記コイルは、前記貫通孔及び溝に連続して形成さ
れた導電パターンから成り、該導電パターンの両端は、
前記第１及びた第２の溝に対応する柱状磁性コアの周面
の端部に形成された外部電極に接続されたことを特徴と
するビーズインダクタ。4. A columnar magnetic core and a coil, wherein the columnar magnetic core has a plurality of through holes opened at opposite end surfaces, one end of which is connected to one of the through holes, and the other end of which is a columnar magnetic core. A first groove formed on one end surface of the columnar magnetic core in series with the end edge of the columnar magnetic core; The second groove formed on the end face and the adjacent through hole are connected to each other to have a third groove formed on both end faces of the columnar magnetic core. The coil is continuous with the through hole and the groove. The conductive pattern is formed, and both ends of the conductive pattern are
A bead inductor connected to an external electrode formed at an end of a peripheral surface of a columnar magnetic core corresponding to the first and second grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33097293A JPH07192925A (en) | 1993-12-27 | 1993-12-27 | Bead inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33097293A JPH07192925A (en) | 1993-12-27 | 1993-12-27 | Bead inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07192925A true JPH07192925A (en) | 1995-07-28 |
Family
ID=18238415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33097293A Withdrawn JPH07192925A (en) | 1993-12-27 | 1993-12-27 | Bead inductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07192925A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006120887A (en) * | 2004-10-22 | 2006-05-11 | Sumida Corporation | Magnetic element |
| JP4999028B1 (en) * | 2011-10-26 | 2012-08-15 | 株式会社Ｍａｒｕｗａ | Impedance element |
| WO2014143418A1 (en) * | 2013-03-15 | 2014-09-18 | Cooper Technologies Company | High performance high current power inductor |
| US20160005528A1 (en) * | 2013-03-15 | 2016-01-07 | Cooper Technologies Company | High performance high current power inductor |
| EP3809427A1 (en) * | 2019-10-17 | 2021-04-21 | Infineon Technologies Austria AG | Inductor devices and stacked power supply topologies |
| US11394428B2 (en) | 2019-04-01 | 2022-07-19 | Infineon Technologies Ag | Power regulation for lighting using NFC |
-
1993
- 1993-12-27 JP JP33097293A patent/JPH07192925A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006120887A (en) * | 2004-10-22 | 2006-05-11 | Sumida Corporation | Magnetic element |
| JP4999028B1 (en) * | 2011-10-26 | 2012-08-15 | 株式会社Ｍａｒｕｗａ | Impedance element |
| WO2014143418A1 (en) * | 2013-03-15 | 2014-09-18 | Cooper Technologies Company | High performance high current power inductor |
| US20160005528A1 (en) * | 2013-03-15 | 2016-01-07 | Cooper Technologies Company | High performance high current power inductor |
| US11394428B2 (en) | 2019-04-01 | 2022-07-19 | Infineon Technologies Ag | Power regulation for lighting using NFC |
| EP3809427A1 (en) * | 2019-10-17 | 2021-04-21 | Infineon Technologies Austria AG | Inductor devices and stacked power supply topologies |
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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: 20010306 |