JPS6034008A - Manufacture of ferrite bead inductor - Google Patents
Manufacture of ferrite bead inductorInfo
- Publication number
- JPS6034008A JPS6034008A JP14241383A JP14241383A JPS6034008A JP S6034008 A JPS6034008 A JP S6034008A JP 14241383 A JP14241383 A JP 14241383A JP 14241383 A JP14241383 A JP 14241383A JP S6034008 A JPS6034008 A JP S6034008A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- bead
- ferrite
- ferrite bead
- bump
- 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
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 38
- 239000011324 bead Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000004020 conductor Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 5
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000000748 compression moulding Methods 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000411532 Erites Species 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011148 porous material 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
-
- 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
- H01F2017/048—Fixed inductances of the signal type with magnetic core with encapsulating core, e.g. made of resin and magnetic powder
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はフェライトビードインダクター素子の製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a ferrite bead inductor element.
Ｉ ＭＨ７，１＞Ｉ Ｐの雄嵜信呆を姻有式せスのに有
効なインダクター素子として用いられるフェライトビー
ドインダクターは第１図に示す様に円筒状のフェライト
ビード１に°導線２を挿通して形成されているが、この
フェライトビードを導線に固定する為２種々の方法が採
用されている。A ferrite bead inductor, which is used as an effective inductor element to connect a magnetic conductor with IMH7,1>IP, is made by inserting a conductor wire 2 into a cylindrical ferrite bead 1, as shown in Figure 1. However, two different methods are used to fix this ferrite bead to the conductor.
この固定方法の代表的な例を第２図および第３図に示す
。A typical example of this fixing method is shown in FIGS. 2 and 3.
第２図では、フェライトビード１に導線２を挿通した後
、導線２とフェライトビードの挿入間隙並びにビードの
両側に接着剤６を塗布注入硬化し、あるいは第３図の如
く、フェライトビード１に導線２を挿通した後、フェラ
イトビード１の両端部付近の導線をつぶして凸起４を形
成しフェライトビードインダクターとする方法である。In FIG. 2, after the conductor 2 is inserted into the ferrite bead 1, an adhesive 6 is applied to the insertion gap between the conductor 2 and the ferrite bead and on both sides of the bead, injected and hardened, or as shown in FIG. 2 is inserted, the conductive wire near both ends of the ferrite bead 1 is crushed to form protrusions 4, thereby forming a ferrite bead inductor.
然しなからこの様な方法では、第１に円筒状のフェライ
トビードの細孔に導線を挿通させる為に、挿通の際導線
を曲げたり、フェライトビードの割れ、欠けを生じやす
く、更に接着剤を微量注入する事により、注入量に変動
を生じたり硬化処理に時間を要し、その間素子を動かせ
ないため自動化が難かしく、又、第６図の様に導線がつ
ぶされる構造では導線が折れやすく。However, in this method, firstly, the conductor wire is inserted through the pores of the cylindrical ferrite bead, so the conductor wire is likely to be bent during insertion, the ferrite bead may be cracked or chipped, and the adhesive must be used. Injecting a small amount causes fluctuations in the injection amount and takes time for the curing process, making it difficult to automate as the device cannot be moved during this time.Also, in the structure where the conductor is crushed as shown in Figure 6, the conductor is likely to break. .
又フェライトビードが導線に完全に固定されない為に振
動によりフェライトビートに割れや欠けを生じやすい等
９種々の問題がある。Furthermore, since the ferrite bead is not completely fixed to the conductor, there are various problems such as the ferrite bead being susceptible to cracking or chipping due to vibration.
本発明の目的は上述の欠点を除去し、生産性が高り１品
質の安定したフェライトビードインダクター素子の製造
方法を提供する事にある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a method for manufacturing a ferrite bead inductor element with high productivity and stable quality.
以下図面により本発明によるフェライトビートインダク
ターの製造方法を説明する。A method of manufacturing a ferrite beat inductor according to the present invention will be explained below with reference to the drawings.
第４図は本発明によるフェライトビートインダ、クター
製造工程を表わす概念図であるが、〆左方の矢印１０の
方向より供給され〆右方に移動される導線１１は、先ず
Ａの位置に配置され。FIG. 4 is a conceptual diagram showing the manufacturing process of the ferrite beat inductor and inductor according to the present invention, in which the conducting wire 11 is supplied from the direction of the arrow 10 on the left side and moved to the right side, and is first placed at the position A. It is.
ここで上下のボッチ２０が矢印２１の方向に動作する事
によって導線に凸起１２を形成し次にＢの位置に送られ
る。ここでＢ位置に配置されたフェライトビード成形用
金型２２が矢印２４の方向に型締めされ、さらにピスト
ン２３により熱硬化性結合相を含むフェライト粉末を金
型２２のキャビティ内に押込み、凸起１２の形成された
導線１１の周囲にフェライトビード１３として加熱成形
される。Here, the upper and lower notches 20 move in the direction of the arrow 21 to form a protrusion 12 on the conductor, and then the conductor is sent to the position B. Here, the ferrite bead forming mold 22 placed at position B is clamped in the direction of the arrow 24, and the piston 23 pushes the ferrite powder containing the thermosetting binder phase into the cavity of the mold 22, forming a convex shape. A ferrite bead 13 is formed around the conductive wire 11 having a ferrite bead 12 formed thereon.
更にＣの位置へ順次移送され、Ｃ位置に配置されたトン
ネル状加熱炉２５で熱硬化性結合相は完全に硬化される
。Furthermore, the thermosetting binder phase is sequentially transferred to position C, and is completely cured in the tunnel-shaped heating furnace 25 disposed at position C.
この様に連続した導線上に一定のピンチで形成されたフ
ェライトビードは、Ｄ位置に移送され、ここで配置され
たカッタ刃２６が矢印２７の方向ヘスライトする事によ
り導線を順次切断して行きフェライトビードインダクタ
１４として完成される。The ferrite bead formed with a certain pinch on the continuous conductive wire in this way is transferred to position D, and the cutter blade 26 placed here moves in the direction of the arrow 27 to sequentially cut the conductive wire and produce ferrite beads. It is completed as a bead inductor 14.
以上の説明では導線１１に設ける凸起１２はフェライト
ビート１３が導線１１に強固に接合する為に設けたもの
であるが、結合材を適轟に選定する事により凸起１２を
作らなくてもよい。即ちＡの工程を省略することもでき
る。In the above explanation, the protrusions 12 provided on the conductor wire 11 are provided in order to firmly bond the ferrite beats 13 to the conductor wire 11, but by selecting an appropriate bonding material, it is possible to eliminate the protrusions 12. good. That is, step A can also be omitted.
さて、第〆図Ｂ部のフェライトビード形成音は、結合材
に熱可塑性樹脂を使用しても良く。Now, for the ferrite bead forming sound shown in part B of the final diagram, thermoplastic resin may be used as the bonding material.
この場合Ｃ部のトンネル状加熱炉は省略することも出来
る。In this case, the tunnel-shaped heating furnace in section C can be omitted.
又、フェライトビード成形の速度を上げる為に、第５図
（、）に示す熱硬化性結合材を含むフェライト粉末を予
め加圧成形した圧粉ペレット６０にしておき、第５図（
ｂ）に示す如く、上部ダイ６１゜上ポンチ６２のキャビ
ティ６５と、下部ダイ３６゜下ポンチ３４のキャビティ
６６に各々挿入し、上下のダイで導線１１を固定型締め
した後、上下のポンチで圧粉ペレットを加圧成形する。In addition, in order to increase the speed of ferrite bead forming, ferrite powder containing a thermosetting binder as shown in FIG.
As shown in b), the upper die 61° is inserted into the cavity 65 of the upper punch 62 and the lower die 36° is inserted into the cavity 66 of the lower punch 34, and after the conductor 11 is fixedly clamped with the upper and lower dies, it is inserted with the upper and lower punches. Pressure mold the powder pellets.
以上述べたごとく本発明によれは、連続的に品質の安定
したフェライトビートインダクターの製造が可能となり
自動化ができ且つ生産性の高い製造方法を提供する事が
可能となった。As described above, according to the present invention, it is possible to continuously manufacture a ferrite beat inductor with stable quality, and it is possible to provide a manufacturing method that can be automated and has high productivity.
第１図はフェライトビートインダクターの斜視図、第２
図、第３図は従来のフェライトビートインダクター
の製造工程を示す概略図，第５図（ａ）は本を明に用い
るペレット、第５図（ｂ）は本発明に用いる金型の概略
図を示す。
図において。
１：フェライトビード，２：導線，６：接着剤。
４：導線２に設けた凸起，１１：連続した導線。
１６：成形されたフェライトビード、２ｏ：凸起１２を
形成させるだめのポンチ、２２ニアエライトビード成形
金型，２３：ピストン，２５：加熱炉，２６：カッタ、
６ｏ：フエライト圧粉ペレット，３１．３３：上下の成
形ダイ、３２，３４：上下のポンチ。Figure 1 is a perspective view of a ferrite beat inductor, Figure 2
Figure 3 is a schematic diagram showing the manufacturing process of a conventional ferrite beat inductor, Figure 5 (a) is a pellet used in the present invention, and Figure 5 (b) is a schematic diagram of a mold used in the present invention. shows. In fig. 1: Ferrite bead, 2: Conductive wire, 6: Adhesive. 4: Protrusion provided on conductor 2, 11: Continuous conductor. 16: Molded ferrite bead, 2o: Punch for forming the protrusion 12, 22 Near erite bead mold, 23: Piston, 25: Heating furnace, 26: Cutter,
6o: Ferrite powder pellet, 31.33: Upper and lower molding dies, 32, 34: Upper and lower punches.
Claims (1)
ト粉末を、連続した導線に一定の距離を持って複数個の
ビード状に成形加圧し、これを硬化したのち所定の寸法
に切断する事を特徴とするフェライト ビード インダ
クター製造方法。 ２）導線に凸起を設け、この凸起の周囲にフェライト
ビードを形成加熱する工程を有する特許[Claims] 1) Ferrite powder using a thermosetting or thermoplastic resin as a binder is molded and pressed into a plurality of beads at a certain distance from a continuous conductive wire, and after being hardened, a predetermined shape is formed. A method for manufacturing a ferrite bead inductor, which is characterized by cutting it into dimensions. 2) Providing a protrusion on the conductor and surrounding the protrusion with ferrite.
Patent for process of forming and heating beads
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14241383A JPS6034008A (en) | 1983-08-05 | 1983-08-05 | Manufacture of ferrite bead inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14241383A JPS6034008A (en) | 1983-08-05 | 1983-08-05 | Manufacture of ferrite bead inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6034008A true JPS6034008A (en) | 1985-02-21 |
| JPH0518248B2 JPH0518248B2 (en) | 1993-03-11 |
Family
ID=15314754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14241383A Granted JPS6034008A (en) | 1983-08-05 | 1983-08-05 | Manufacture of ferrite bead inductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6034008A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2737038A1 (en) * | 1995-07-18 | 1997-01-24 | Dale Electronics | HIGH CURRENT EXTRA-FLAT INDUCTOR AND MANUFACTURING METHOD THEREOF |
| US7034645B2 (en) | 1999-03-16 | 2006-04-25 | Vishay Dale Electronics, Inc. | Inductor coil and method for making same |
| US7263761B1 (en) | 1995-07-18 | 2007-09-04 | Vishay Dale Electronics, Inc. | Method for making a high current low profile inductor |
| JP2008192887A (en) * | 2007-02-06 | 2008-08-21 | Nec Tokin Corp | Coil component |
| US7921546B2 (en) | 1995-07-18 | 2011-04-12 | Vishay Dale Electronics, Inc. | Method for making a high current low profile inductor |
| US10319507B2 (en) | 2006-08-09 | 2019-06-11 | Coilcraft, Incorporated | Method of manufacturing an electronic component |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158657A (en) * | 1978-06-03 | 1979-12-14 | Tdk Electronics Co Ltd | Method of producing electronic component |
| JPS5598803A (en) * | 1979-01-23 | 1980-07-28 | Tdk Corp | Chip inductor and manufacturing method thereof |
-
1983
- 1983-08-05 JP JP14241383A patent/JPS6034008A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158657A (en) * | 1978-06-03 | 1979-12-14 | Tdk Electronics Co Ltd | Method of producing electronic component |
| JPS5598803A (en) * | 1979-01-23 | 1980-07-28 | Tdk Corp | Chip inductor and manufacturing method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2737038A1 (en) * | 1995-07-18 | 1997-01-24 | Dale Electronics | HIGH CURRENT EXTRA-FLAT INDUCTOR AND MANUFACTURING METHOD THEREOF |
| US6204744B1 (en) | 1995-07-18 | 2001-03-20 | Vishay Dale Electronics, Inc. | High current, low profile inductor |
| US6460244B1 (en) | 1995-07-18 | 2002-10-08 | Vishay Dale Electronics, Inc. | Method for making a high current, low profile inductor |
| US7221249B2 (en) | 1995-07-18 | 2007-05-22 | Vishay Dale Electronics, Inc. | Inductor coil |
| US7263761B1 (en) | 1995-07-18 | 2007-09-04 | Vishay Dale Electronics, Inc. | Method for making a high current low profile inductor |
| US7345562B2 (en) | 1995-07-18 | 2008-03-18 | Vishay Dale Electronics, Inc. | Method for making a high current low profile inductor |
| US7921546B2 (en) | 1995-07-18 | 2011-04-12 | Vishay Dale Electronics, Inc. | Method for making a high current low profile inductor |
| US7986207B2 (en) | 1995-07-18 | 2011-07-26 | Vishay Dale Electronics, Inc. | Method for making a high current low profile inductor |
| US7034645B2 (en) | 1999-03-16 | 2006-04-25 | Vishay Dale Electronics, Inc. | Inductor coil and method for making same |
| US10319507B2 (en) | 2006-08-09 | 2019-06-11 | Coilcraft, Incorporated | Method of manufacturing an electronic component |
| US11869696B2 (en) | 2006-08-09 | 2024-01-09 | Coilcraft, Incorporated | Electronic component |
| JP2008192887A (en) * | 2007-02-06 | 2008-08-21 | Nec Tokin Corp | Coil component |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0518248B2 (en) | 1993-03-11 |
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