JPS5840807A - Inductor and manufacture therefor - Google Patents
Inductor and manufacture thereforInfo
- Publication number
- JPS5840807A JPS5840807A JP13908881A JP13908881A JPS5840807A JP S5840807 A JPS5840807 A JP S5840807A JP 13908881 A JP13908881 A JP 13908881A JP 13908881 A JP13908881 A JP 13908881A JP S5840807 A JPS5840807 A JP S5840807A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- grooves
- core
- inductor
- blocks
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000004804 winding Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000005476 soldering Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229920006015 heat resistant resin Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241000272168 Laridae Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 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
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Coils Or Transformers For Communication (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、インダクタ、特にテップ・インダクタの構造
及びその製法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of an inductor, particularly a tip inductor, and its manufacturing method.
従来のインダクタは、ドラム形コアの両端の鍔部にリー
ド線を増付けた後コアに巻線を施し、巻線の一端をリー
ド線にからげて半田付けし、全体を保ｆｌ ４ｉ４脂層
で被覆したものが普通である。しかし、かかる構造のイ
ンダクタは、次のような欠点を有する・
（イ） チップ部品として面付は実装をするには、不向
きである。Conventional inductors are made by adding lead wires to the flanges at both ends of a drum-shaped core, then winding the core, wrapping one end of the winding around the lead wire, and soldering it to protect the entire body. It is common that the material is coated with However, an inductor with such a structure has the following drawbacks: (a) Surface mounting is not suitable for mounting as a chip component.
（ロ） 端面電極構造にすると、電極が磁路に対してシ
ョート・リングを形成し、Ｑが大幅に低下する。(b) When an end electrode structure is used, the electrodes form a short ring with respect to the magnetic path, resulting in a significant drop in Q.
（）→ 磁気シールドされていないため、隣接部品に対
する（又はからの）影響が大ぎい。() → Because it is not magnetically shielded, the influence on (or from) adjacent components is significant.
に）ｆＡ造工程においてコアを１個ずつ切り離し１個毎
に′！ｌｉ極や巻線を施しているから、自動製造装置の
、設計が比較的難しくかなり高価な装置となる。) In the fA manufacturing process, the cores are cut out one by one and each piece is '! Since Li poles and windings are provided, automatic manufacturing equipment is relatively difficult to design and is quite expensive.
本発明は、端面電極構造で面付は実装に適すると共に磁
気シールド構造であり、且つ大量生産が可能で低コスト
のインダクタ及びその製法を提供するものである。以下
、図面により本発明を具体的に説明する。The present invention provides an inductor that has an end face electrode structure, is suitable for surface mounting, has a magnetic shield structure, can be mass-produced, and is low cost, and a manufacturing method thereof. Hereinafter, the present invention will be specifically explained with reference to the drawings.
第１図は、本発明インダクタの基本構造（第１の実施例
）を示す斜視図である。図において、（１）は中央に凹
字状の溝を有する角形の外コア、（２）は両端に鍔部な
有する角形の中コアで、中コア（２）の鍔部の側面は外
コア＋１１の溝の内面に接触し、閉磁路を形成している
。（３）は中コア（２）の胴部に施された巻ｉ、＋４１
は巻線（３）の引出し線で、（５）は、外コア（１）の
上面部すなわち開口側端面に形成したＡｇ （銀）ペー
スト等の導電層（電極）である。巻線（３）の引出し線
（４）は、導電層（５）に高融点半田などで半田付けし
である。（６）は、巻線（３）を熱より保護するための
高耐熱性樹脂を示す。本発明インダクタの特徴の１つは
、角形の外コアと角形の中コアを有し角形インダクタで
あることである。本発明インダクタの他の特徴は、巻線
２施した中コアを外コアの中に入れてほぼ閉磁路とした
ことである。本発明のも５１つの特徴は、Ｑに影響を与
えない外コアの端面に電極を形成したことである。FIG. 1 is a perspective view showing the basic structure (first embodiment) of the inductor of the present invention. In the figure, (1) is a square outer core with a concave groove in the center, (2) is a square middle core with flanges at both ends, and the sides of the flanges of the middle core (2) are the outer core. It contacts the inner surface of the +11 groove and forms a closed magnetic path. (3) is the winding i applied to the body of the middle core (2), +41
is a lead wire of the winding (3), and (5) is a conductive layer (electrode) such as Ag (silver) paste formed on the upper surface of the outer core (1), that is, the end surface on the opening side. The lead wire (4) of the winding (3) is soldered to the conductive layer (5) with high melting point solder or the like. (6) indicates a highly heat-resistant resin for protecting the winding (3) from heat. One of the characteristics of the inductor of the present invention is that it is a rectangular inductor having a rectangular outer core and a rectangular inner core. Another feature of the inductor of the present invention is that the inner core with two windings is placed inside the outer core to form a substantially closed magnetic path. Another feature of the present invention is that electrodes are formed on the end surface of the outer core, which does not affect Q.
第２図は、本発明インダクタの第２の実施例を示す斜視
図である。本例は、端面電極として外コア（１）の上面
部導電層（５）だけでなく側面部導電層（５′）及び（
５“）を設けた場合を示している。勿論、側面部導電層
（５′）又は（５′）の何れか一方のみと上面部導電層
（５）を設けてもよく、また、上面部導電層（５）、１
１０面部導電層（５′）及び（５′）を形成する代わり
に金属キャップをかぶせて端面電極としてもよい。FIG. 2 is a perspective view showing a second embodiment of the inductor of the present invention. In this example, not only the upper surface conductive layer (5) of the outer core (1) but also the side surface conductive layer (5') and (
Of course, it is also possible to provide only either the side conductive layer (5') or (5') and the top conductive layer (5). Conductive layer (5), 1
Instead of forming the 10-sided conductive layers (5') and (5'), a metal cap may be covered to form an end face electrode.
第３図は、本発明インダクタの第３の実施例を示す斜視
図である。本例は、外コア（１）の上面部にのみ導電層
（５）ヲ形成し、一部を欠除したキャップ（６）ヲかぶ
せて端面電極とした場合を示している。FIG. 3 is a perspective view showing a third embodiment of the inductor of the present invention. This example shows a case in which a conductive layer (5) is formed only on the upper surface of the outer core (1), and a cap (6) with a portion removed is covered to form an end electrode.
このほか、端面電極として種々の変形が考えられるが、
上記のような位置に電極を設ける限り、電極が磁路な妨
害することはなく殆どＱに影響を与えない。ただし、高
耐熱性樹脂（６）側の端面に形成した導電層（５）は、
面付は実装に欠かせないものである。In addition, various modifications can be considered for the end face electrode, but
As long as the electrodes are provided at the positions mentioned above, the electrodes will not interfere with the magnetic path and will have little effect on Q. However, the conductive layer (5) formed on the end surface on the high heat-resistant resin (6) side is
Imposition is essential for implementation.
次に１本発明インダクタの製法を説明する。Next, a method for manufacturing an inductor of the present invention will be explained.
第４〜第６図は、本発明製法の実施例を示す工程図であ
る。第４図は、外コア関係の製造工程を示す略図である
。まず、磁性体板（ＩＩを用意する（第４図Ａ）。次に
、この磁性体板０αに複数の凹字状の溝圓を形成する溝
入れを行なう（第４図Ｂ）。4 to 6 are process diagrams showing an example of the manufacturing method of the present invention. FIG. 4 is a schematic diagram showing the manufacturing process related to the outer core. First, a magnetic plate (II) is prepared (FIG. 4A).Next, this magnetic plate 0α is grooved to form a plurality of concave grooves (FIG. 4B).
この溝入れは、機械加工でもブＶス加工でもよい。This grooving may be done by machining or by V-bossing.
次に、その上面部のみにＡｇペーストを印刷、焼成し、
導電層α２を形成して電極部とし、外コア溝入り板α３
を作る。Next, print Ag paste only on the top surface, bake it,
A conductive layer α2 is formed to serve as an electrode part, and an outer core grooved plate α3 is formed.
make.
第５図は、中コア関係の製造工程を示す略図である。厚
さが第４図Ｃの外コア溝入り板ｆ１３１の溝Ｑｌｌの幅
に等しい磁性体板（１４を用意しく第５図Ａ）、その表
面及び裏面に同一ピッチ及び幅の溝０５１．α０を形成
する（第５図Ｂ、Ｃ）。次いで、これを溝ｆ１５） 、
（１６１と直角の方向にブロック状に切断し、第４図
Ｃに示す外コア溝入り板α３の溝（１１）の深さより小
さい幅の中コア・ブロック面を作る（第５図り。FIG. 5 is a schematic diagram showing the manufacturing process related to the middle core. A magnetic plate (14 is provided in FIG. 5A) whose thickness is equal to the width of the groove Qll of the outer core grooved plate f131 in FIG. 4C, and grooves 051. α0 is formed (Fig. 5B, C). Next, this is groove f15),
(Cut into blocks in the direction perpendicular to 161 to create a middle core block surface with a width smaller than the depth of the groove (11) of the outer core grooved plate α3 shown in FIG. 4C (FIG. 5).
Ｅ）。中コア・ブロックＱ７１の溝（１５１、０６１に
対応する部分は、巻線案内溝（国となる〇
第６図は、巻線及び組立て工程を示す略図である。１本
の線で中コア・ブロック（Ｉｎの巻線案内溝（１８１毎
に所定回数の巻線口９をし、巻解ブロック−を作る。各
巻線０９の間を結ぶ線間は、第６図Ａのようにブロック
の１側面に揃える。次に、この巻線ブロック（２１を第
４図Ｃの外コア溝入り板（Ｉ３１の溝旧）の中に入れる
。この場合、巻線ブロック（２０１ヲ第６図Ａの位置か
ら９０°回転し、その側面が溝圓の内面に接触し、且つ
連結線−のある面が上になるようにする。また、中コア
・ブロック（１７１の長さを所定寸法に規定しておき、
外コア溝入り板Ｑ３１に入れてからその端面に基準板を
付き当てて、各ブロックの巻線０口１えるように調整す
る。そして、瞬間接着剤などで仮止めする（第６図Ｂ）
。次に、Ｘカット方向に半分だけ切断し、巻線間の連結
線−ヲ切断する。切断された連結線−はそれぞれ各巻線
の端末となるので、これを先に形成した導電層（１２）
の上に乗せ、高温半田で半田付けする。ただし、この半
田付けは各種の量産的手法を用いることが可能である。E). The grooves (151, 061) of the middle core block Q71 correspond to the winding guide grooves (Fig. The winding guide groove of the block (In) is made a predetermined number of times for each 181 winding port 9 to create an unwinding block. Next, place this winding block (21) into the outer core grooved plate (old groove of I31) in Fig. 4C. In this case, place the winding block (201 in the position shown in Fig. 6A). Rotate 90 degrees from the center so that its side surface contacts the inner surface of the groove and the surface with the connecting line faces upward. Also, set the length of the middle core block (171 to a predetermined dimension). Ok,
After inserting the outer core into the grooved plate Q31, place a reference plate on the end face of the outer core and adjust so that each block has 0 windings and 1 winding. Then, temporarily fix it with instant adhesive, etc. (Figure 6B)
. Next, it is cut in half in the X-cut direction, and the connecting wire between the windings is cut. The cut connecting wires become the terminals of each winding, so they are attached to the conductive layer (12) formed earlier.
Place it on top and solder it with high temperature solder. However, various mass-production methods can be used for this soldering.
例えば、Ａｇペースト上に予め高温半田を形成しておき
、そこに絶縁被膜付きの巻線端末２乗せ、上部から加熱
されたヒータ板を当てて複数個の半田付けを同時に行な
うことができる。この作業は、１枚基板の状態で行なえ
る。For example, a plurality of solders can be simultaneously soldered by forming high-temperature solder on Ag paste in advance, placing the winding terminal 2 with an insulating coating thereon, and applying a heated heater plate from above. This work can be done with a single board.
また、ヒータ板は、巻線端末の絶縁被膜を燃焼させてし
まうような温度に加熱する必要がある。Further, the heater plate needs to be heated to a temperature that burns the insulation coating at the end of the winding.
次に、巻線ａ１を保護するため、その周りに樹脂をスク
リーン印刷などで充填し硬化させる。この場合、樹脂が
外コアの電極部にはみ出さないように、前述の如く中コ
ア・ブロックαｈの幅を溝（Ｉｌｌの深さより小として
、第１図において外コア（１）の上面部と中コア（２）
の巻線（３）との間に示されているような段差ｄが付け
である。最後に、ＸＹ両カット方向の完全切断を行なっ
て、チップ状インダクタ（２４）を得る（第６図Ｃ，Ｄ
）。このインダクタ□□□は、第１図の実施例に当たる
。ただし、図では樹脂ン除いて示しである。更に、第２
図の実施例のように外コアの側面部にも電極を形成しう
る。また、必要に応じ、電極リード線ン取付けるように
することも可能である。Next, in order to protect the winding a1, resin is filled around it by screen printing or the like and hardened. In this case, in order to prevent the resin from protruding into the electrode part of the outer core, the width of the middle core block αh is made smaller than the depth of the groove (Ill) as described above, so that the upper surface of the outer core (1) in FIG. Medium core (2)
There is a step d as shown between the winding (3) and the winding (3). Finally, a chip-shaped inductor (24) is obtained by completely cutting in both the X and Y cutting directions (Fig. 6C and D).
). This inductor □□□ corresponds to the embodiment shown in FIG. However, the resin is not shown in the figure. Furthermore, the second
As in the illustrated embodiment, electrodes may also be formed on the side surfaces of the outer core. Further, if necessary, it is also possible to attach an electrode lead wire.
上述のような製法によって、１＠５朋、奥行３龍、高さ
２龍のチップ・インダクタを試作した。巻線は０．０７
ｍｍφホルマン被覆銅線、コアはＮｉ−Ｚｎ系フェライ
ト、高耐熱性樹脂は熱膨張係数をフェライトにほぼ等し
くしたエポキシ系封止剤、高温半田は融点が２７０℃の
ものン用いた。巻回数１５ターンでインダクタンスは３
０μＨ，ＱはＩＭＨ２で１００以上、温度特性は一２０
°〜８０℃で±４００ ｐｐｍ以下であった。巻回数を
調整すればインダクタンスを増減しうろことは、勿論で
ある。Using the manufacturing method described above, we prototyped a chip inductor with a size of 1@5 mm, depth of 3 mm, and height of 2 mm. The winding is 0.07
A mmφ Holman-coated copper wire, a Ni--Zn ferrite core, a highly heat-resistant resin, an epoxy sealant whose coefficient of thermal expansion is approximately equal to that of ferrite, and a high-temperature solder having a melting point of 270° C. were used. The number of turns is 15 and the inductance is 3.
0μH, Q is IMH2 more than 100, temperature characteristics are -20
It was less than ±400 ppm at 80°C to 80°C. Of course, the inductance can be increased or decreased by adjusting the number of turns.
以上の説明から分かるように、本発明インダクタの製法
は、製造工程全般に亘りインダクタ部品Ｙ１個毎に処理
する工程がなく、作業は大量処理工程で流れ、最後にチ
ップ状に分割した状態で製品として完成する製法である
から、自動製造装置の設計が容易で量産に適しコストを
安くしうる利点を有する。As can be seen from the above explanation, the method for manufacturing the inductor of the present invention does not require a step of processing each inductor component Y throughout the entire manufacturing process, and the work proceeds in a mass processing step, and finally the product is divided into chips. Since it is a manufacturing method that can be completed as follows, it has the advantage of being easy to design automatic manufacturing equipment, suitable for mass production, and reducing costs.
こうして製造される本発明インダクタは、次のような顕
著な効果を有する。The inductor of the present invention manufactured in this manner has the following remarkable effects.
（ａ） 角形で端面電極構造のため、チップ部品とし
て面付は実装に最適である。ハイブリッド集積回路に面
付は実装する場合、リフロー昏フルダリング法や従来の
チップ部品装着法を用いることができる。(a) Due to its rectangular shape and end face electrode structure, surface mounting is ideal for mounting chip components. When surface-mounting a hybrid integrated circuit, a reflow mounting method or a conventional chip component mounting method can be used.
（ｂ） 巻線された中コアを外コアが包囲しほぼ閉磁
路を構成するので、磁気シールドされて隣接部品との間
の干渉が少なく、高密度実装に適する。(b) Since the outer core surrounds the wire-wound middle core to form a nearly closed magnetic path, it is magnetically shielded and has little interference with adjacent components, making it suitable for high-density packaging.
（Ｃ） 電極がＱに影響を与えないので、小形で且つ
Ｑの高いインダクタが得られる。(C) Since the electrodes do not affect Q, a small inductor with high Q can be obtained.
（ｄ） 大量生産に適し、コストが安い。(d) Suitable for mass production and low cost.
なお、本発明インダクタ及びその製法は、上述の実施例
に限らず、特許請求の範囲に記載した発明の要旨を逸脱
することなく種々の変形・変更馨することが可能である
。Note that the inductor of the present invention and its manufacturing method are not limited to the above-described embodiments, and various modifications and changes can be made without departing from the gist of the invention as set forth in the claims.
第１〜第３図は本発明インダクタの種々の実施例を示す
斜伏図、第４〜第６図は本発明インダクタ製法の１実施
例を示す工程図である。
（１）・・・・・・・外コア、（２）・・・・・・・中
コア、（３）・・・・・・・巻線、（５）・・・・・・
・導電層、鴎・・・・・・・外コア用磁性体板、（団・
・・・・・・凹字状の溝、０２・・・・・・・導電層、
（１３１・・・・・・・外コア溝入り板、０４１・・・
・・・・中コア用磁性体板、（＋５１ 。
（１６）・・・・・・・溝、面・・・・・・・中コア・
ブロック、０！ｌ・・・・・・・巻線、（２１・・・・
・・・巻線ブロック、（２１１・・・・・・・連結線、
閣・・・・・・・チップ状に切断されたインダクタ。
第５区
１６↓
Ｅ 酷４８ツ１
第６図
９1 to 3 are oblique views showing various embodiments of the inductor of the present invention, and FIGS. 4 to 6 are process diagrams showing one embodiment of the inductor manufacturing method of the present invention. (1)・・・・・・Outer core, (2)・・・・・・Middle core, (3)・・・Winding, (5)・・・・・・
・Conductive layer, gull......magnetic plate for outer core, (group ・
...concave groove, 02...conductive layer,
(131... Outer core grooved plate, 041...
...Magnetic plate for medium core, (+51. (16) ...Groove, surface ...Medium core...
Block, 0! l... Winding wire, (21...
...Winding block, (211...Connection wire,
Cabinet: Inductor cut into chips. 5th Ward 16↓ E Ku48tsu 1 Figure 6 9
Claims (1)
に鍔部な有し、胴部に巻線を施した角形の中コアとを設
け、上記外コアの溝に上記中コアをその鍔部の側面が上
記溝の内面に接触するよう挿入し、少なくとも上記外コ
アの開口側端面に導電層を形成して電極としたことを特
徴とするインダクタ。 ２、 磁性体板の一面に複数の凹字状の溝を入れ上面部
に導電層を形成して外コア溝入り板を作る工程と、磁性
体板の両面に複数の溝を設はブロック状に切断して複数
の中コア・ブロックを作る工程と、この複数の中コア・
ブロックに複数個分の巻線を施して複数の巻線ブロック
を作る工程と、この複数の巻線ブロックを上記外コア溝
入り飯の谷溝に挿入し、仮接着後に上記各巻線間の連結
線を切断して巻線端末を出し、この巻線端末を上記導電
層に半田付けして巻形１１部を封止し、チップ状に切断
してインダクタを得る工程とを有するインダクタの製法
。[Scope of Claims] 1. A square outer core having a concave groove in the center and a square inner core having flanges at both ends and having a winding on the body, An inductor characterized in that the inner core is inserted into the groove so that the side surface of the flange part contacts the inner surface of the groove, and a conductive layer is formed on at least the opening side end surface of the outer core to serve as an electrode. 2. The process of creating an outer core grooved plate by creating a plurality of concave grooves on one side of the magnetic plate and forming a conductive layer on the top surface, and the process of creating a block-shaped plate with multiple grooves on both sides of the magnetic plate. The process of cutting into multiple medium core blocks, and the process of cutting these multiple medium core blocks into
A step of creating a plurality of winding blocks by winding a plurality of wires on the block, inserting the plurality of winding blocks into the valley grooves of the outer core grooved iron, and connecting each of the windings after temporary bonding. A method for manufacturing an inductor comprising the steps of: cutting a wire to expose a winding end; soldering the winding end to the conductive layer to seal the winding 11; and cutting into chips to obtain an inductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13908881A JPS5840807A (en) | 1981-09-03 | 1981-09-03 | Inductor and manufacture therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13908881A JPS5840807A (en) | 1981-09-03 | 1981-09-03 | Inductor and manufacture therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5840807A true JPS5840807A (en) | 1983-03-09 |
Family
ID=15237203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13908881A Pending JPS5840807A (en) | 1981-09-03 | 1981-09-03 | Inductor and manufacture therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840807A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63106114U (en) * | 1986-12-26 | 1988-07-08 | ||
| EP0652551A1 (en) * | 1993-11-09 | 1995-05-10 | Thomson-Csf | Methods of batch manufacturing of coils |
| US6765468B2 (en) * | 2002-07-25 | 2004-07-20 | Micro-Star Int'l Co., Ltd. | Inductor module including plural inductor winding sections connected to a common contact and wound on a common inductor core |
| JP2019220664A (en) * | 2018-06-19 | 2019-12-26 | Tdk株式会社 | Coil component |
-
1981
- 1981-09-03 JP JP13908881A patent/JPS5840807A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63106114U (en) * | 1986-12-26 | 1988-07-08 | ||
| EP0652551A1 (en) * | 1993-11-09 | 1995-05-10 | Thomson-Csf | Methods of batch manufacturing of coils |
| FR2712418A1 (en) * | 1993-11-09 | 1995-05-19 | Thomson Csf | Methods of collective realization of windings. |
| US6765468B2 (en) * | 2002-07-25 | 2004-07-20 | Micro-Star Int'l Co., Ltd. | Inductor module including plural inductor winding sections connected to a common contact and wound on a common inductor core |
| JP2019220664A (en) * | 2018-06-19 | 2019-12-26 | Tdk株式会社 | Coil component |
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