JPH01188013A - Manufacture of noise filter - Google Patents
Manufacture of noise filterInfo
- Publication number
- JPH01188013A JPH01188013A JP1235088A JP1235088A JPH01188013A JP H01188013 A JPH01188013 A JP H01188013A JP 1235088 A JP1235088 A JP 1235088A JP 1235088 A JP1235088 A JP 1235088A JP H01188013 A JPH01188013 A JP H01188013A
- Authority
- JP
- Japan
- Prior art keywords
- ferrite core
- lead
- lead terminal
- terminals
- noise filter
- 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 12
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 abstract description 13
- 238000005476 soldering Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000010348 incorporation Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Filters And Equalizers (AREA)
Abstract
Description
【発明の詳細な説明】
〔分野の概要〕
本発明は、電子機器等のプリント配線板に装着し、電子
機器等が電磁ノイズにより誤動作するのを防止する、ノ
イズフィルタ装置の製造方法に関するものである。[Detailed Description of the Invention] [Overview of the Field] The present invention relates to a method for manufacturing a noise filter device that is attached to a printed wiring board of an electronic device or the like to prevent the electronic device or the like from malfunctioning due to electromagnetic noise. be.
第３図は、従来の集積回路パッケージ型ノイズフィルタ
の構造を示したものであり、絶縁処理を施したリング状
の磁性体に、複数同調Ｍ６を巻線してインダクタ５を形
成する。台座３は電気絶縁性の樹脂成形品からなる長方
形で外周に肉厚を残し、中央部にインダクタを収納する
有産の凹部を形成している。また台座３の外壁には、蓋
体ｌを台座３と組み合わせる固定用の突起部１０を突設
し、台座３の肉厚部には、集積回路パッケージと同配列
の、外部接続用丸ビン端子４が設けてあり、巻線後のイ
ンダクタの銅線６を、台座３の縁辺内の溝７を通し、丸
ビン端子４の巻付は部８に、２ないし３回巻回し、余分
な銅線６を切断して半田付けを行ない、銅線６と丸ピン
端子４とを接続する。FIG. 3 shows the structure of a conventional integrated circuit package type noise filter, in which an inductor 5 is formed by winding a plurality of tuned M6 around an insulated ring-shaped magnetic body. The pedestal 3 is a rectangular shape made of an electrically insulating resin molded product, leaving a thick wall around the outer periphery, and forming a recessed portion in the center to accommodate the inductor. Further, on the outer wall of the pedestal 3, a protrusion 10 for fixing the lid 1 to the pedestal 3 is provided protrudingly, and on the thick part of the pedestal 3, round pin terminals for external connection are provided in the same arrangement as the integrated circuit package. 4 is provided, the copper wire 6 of the inductor after winding is passed through the groove 7 in the edge of the pedestal 3, and the round bottle terminal 4 is wound 2 or 3 times around the part 8, and the excess copper wire is removed. The wire 6 is cut and soldered to connect the copper wire 6 and the round pin terminal 4.
各丸ビン端子４との接続を完了すると、インダクタの銅
線６が振動して断線するのを防止するため、インダクタ
設置後に、インダクタを収納する凹部にシリコン、或い
はエポキシ樹脂等にて固定を行う。蓋体１は、台座３と
同様に電気絶縁性の樹脂成形品よりなり、台座３を収納
する空間、及び台座３の固定用突起部１０と嵌合する固
定用窓２が設けられている。When the connection with each round bottle terminal 4 is completed, in order to prevent the copper wire 6 of the inductor from vibrating and breaking, fix the inductor in the recessed part that accommodates the inductor with silicone or epoxy resin, etc. after installing the inductor. . The lid 1 is made of an electrically insulating resin molded product like the pedestal 3, and is provided with a space for accommodating the pedestal 3 and a fixing window 2 that fits into the fixing protrusion 10 of the pedestal 3.
従来のノイズフィルタ装置の製造においては、電気絶縁
性の樹脂にて、台座、及び蓋体の成形を行っているが、
台座成形後に丸ピン端子を圧入しているため、作業能率
が著しく低下し、丸ピン端子がぬけてしまったり、圧入
中に丸ピン端子が曲がってしまうなどの欠点があり、信
頼性に欠ける問題があった。In the production of conventional noise filter devices, the pedestal and lid are molded from electrically insulating resin.
Because the round pin terminals are press-fitted after the pedestal is formed, work efficiency is significantly reduced, and there are drawbacks such as the round pin terminals falling out or bending during press-fitting, resulting in a lack of reliability. was there.
また、インダクタの銅線を丸ビン端子に接続する際、丸
ピン端子へ２ないし３回程度銅線を巻回した後に、半田
付は作業を行っていたため、丸ピン端子に比例して巻回
す工数が多くなるため半田付は作業が面倒となり、量産
には不適当であった。Also, when connecting the copper wire of the inductor to the round pin terminal, the soldering work was done after winding the copper wire around the round pin terminal two or three times, so the wire should be wound in proportion to the round pin terminal. Soldering was difficult because it required a lot of man-hours, making it unsuitable for mass production.
一方、トロイダルコイルに巻線をしてインダクタとして
いるため、巻線の数が多くなると、比例して丸ビン端子
へ接続すべき銅線の数が増え、面倒となり、量産には不
適当であった。On the other hand, since the inductor is made by winding a toroidal coil, as the number of windings increases, the number of copper wires that need to be connected to the round bottle terminal increases proportionally, which is cumbersome and unsuitable for mass production. Ta.
本発明は、長方形の軟磁性フェライトコア（以下フェラ
イトコアと称する）の中央部に、リード端子が設置でき
るように複数個のリード端子を挿入する半丸溝を等間隔
に端子数の数だけ設け、該フェライトコアの中央丸溝部
に、端子数に合わせてリード端子を挿入した後、樹脂を
用い封止成形することににより一体成形を行ない、前記
構造とすることにより、巻線作業、インダクタ銅線の巻
付は作業、並びに半田付は作業をはぷいたことを特徴と
するノイズフィルタ装置の製造方法を提供することを目
的とする。。In the present invention, half-round grooves into which a plurality of lead terminals are inserted are provided at equal intervals in the center of a rectangular soft magnetic ferrite core (hereinafter referred to as ferrite core) in equal intervals to the number of terminals. After inserting the lead terminals according to the number of terminals into the central round groove of the ferrite core, integral molding is performed by sealing with resin. It is an object of the present invention to provide a method for manufacturing a noise filter device characterized in that wire winding is a work and soldering is a work. .
本発明はリード端子を挿入するためのリード端子挿入溝
を設けた長方形に成形し、２分割したフェライトコアと
、良導電性の薄い金属板を打ち抜いて作ったリードフレ
ームとで構成し、前記軟磁性フェライトコアの溝と同じ
間隔に配置されたリード端子をフェライトコアの溝に挿
入し、リード端子の両面にフェライトコアの溝とリード
端子を嵌合し組合せ、樹脂を用い一体に封止成形し、つ
いでリード端子先端よりフレームを切断し、その後リー
ド端子を折り曲げて形成したことを特徴とするノイズフ
ィルタ装置の製造方法である。The present invention consists of a ferrite core formed into a rectangle with lead terminal insertion grooves for inserting lead terminals and divided into two parts, and a lead frame made by punching out a thin metal plate with good conductivity. Insert the lead terminals arranged at the same intervals as the grooves in the magnetic ferrite core into the grooves in the ferrite core, fit the grooves in the ferrite core and the lead terminals on both sides of the lead terminal, combine them, and seal and mold them together using resin. This method of manufacturing a noise filter device is characterized in that the frame is then cut from the tip of the lead terminal, and then the lead terminal is bent.
第１図、第２図は、本発明の一実施例を説明する斜視図
である。FIGS. 1 and 2 are perspective views illustrating an embodiment of the present invention.
第１図において（ａ）、（Ｃ）はそれぞれ２分割された
、長方形のフェライトコア（Ａ）１３と、（Ｂ） １４
の中央部に、それぞれ端子数に比例した半丸溝１５が設
けてあり、その半丸溝１５に、（ｂ）に示すバネ性のあ
る銅合金、或いはステンレス板表面に銅メツキを施すな
どをした金属を用いて形成された、リード端子１２を挿
入し、２分割された軟磁性フェライトコア１３．１４を
、リード端子両面よりリード端子がフェライトコア表面
に設けた半丸溝１５に収まるよう一体とした後、第２図
に示す形状にエポキシ樹脂等の熱硬化性樹脂１６（以下
樹脂と称する）により、フェライトコアを包むよう封止
成形法により一体成形を行うもので、成形後にリード端
子を基板面に指し込めるように基板面方向に折り曲げる
ことによりノイズフィルタ装置を構成するもので、これ
により従来の欠点であった銅線の巻線作業、半田付は作
業１巻付は作業を全くなくした構造のノイズフィルタ装
置を製造するものである。In FIG. 1, (a) and (C) are rectangular ferrite cores (A) 13 and (B) 14, which are each divided into two parts.
A semicircular groove 15 is provided in the center of each terminal in proportion to the number of terminals, and the semicircular groove 15 is made of springy copper alloy as shown in (b) or copper plating on the surface of the stainless steel plate. Insert the lead terminal 12 formed using a metal made of metal, and insert the soft magnetic ferrite core 13 and 14, which are divided into two parts, into one piece so that the lead terminal fits into the semicircular groove 15 provided on the surface of the ferrite core from both sides of the lead terminal. After that, the ferrite core is integrally molded into the shape shown in Fig. 2 using a thermosetting resin 16 (hereinafter referred to as resin) such as epoxy resin using a sealing molding method to enclose the ferrite core.After molding, the lead terminal is The noise filter device is constructed by bending it in the direction of the board surface so that it can be inserted into the board surface.This eliminates the traditional drawbacks of copper wire winding and soldering. The present invention is to manufacture a noise filter device having the following structure.
第１図において、長方形のフェライトコア１３゜１４の
表面に設けられるリード端子１２を収める半丸溝１５の
形状は、実施例に示す半丸溝の形状である必要はなく、
リード端子が収まる余裕を持つ角溝であってもぷく、ま
た、フェライトコアは高透磁率特性を持つＭｎ−Ｚｎフ
ェライトコア、或いはＮｉ−Ｚｎフェライトコアで、上
下面フェライトコアの突き合わせ面は平坦度よく理想的
には鏡面に仕上げる必要がある。また、第１図（ｂ）に
示すフレーム１１１上に設けた位置決めガイド孔１１は
、封止成形を行う際のフェライトコア１３．１４とフレ
ーム１１１との位置決めを行うために用いるものである
。In FIG. 1, the shape of the semicircular groove 15 that accommodates the lead terminal 12 provided on the surface of the rectangular ferrite core 13° 14 does not have to be the shape of the semicircular groove shown in the embodiment.
Even if it is a square groove with enough room for the lead terminal to fit in, the ferrite core is a Mn-Zn ferrite core with high magnetic permeability or a Ni-Zn ferrite core, and the butting surfaces of the upper and lower ferrite cores have a flatness. Ideally, it should have a mirror finish. Further, the positioning guide hole 11 provided on the frame 111 shown in FIG. 1(b) is used for positioning the ferrite core 13.14 and the frame 111 when performing sealing molding.
第２図に示す樹脂ケースによる対土成形は、接着用樹脂
を用い封止密着するか、樹脂製ケースを超音波による圧
接する方法等により封止する。The molding of the resin case against the soil shown in FIG. 2 is performed by sealing the resin case tightly using adhesive resin, or by pressing the resin case using ultrasonic waves.
封止したリード端子付きフェライトコアは、リード端子
をフレームより切り落とし、基板へ装着できるようリー
ド端子を折り曲げ、第２図（ｂ）に示す形状としノイズ
フィルタ装置を完成する。The sealed ferrite core with lead terminals is cut off from the frame, and the lead terminals are bent so that they can be attached to the board, forming the shape shown in FIG. 2(b) to complete the noise filter device.
以上説明したごとく、本発明の製造方法によるノイズフ
ィルタ装置は、インダクタを構成するのに磁心への巻線
の巻回し、ピン端子への巻線端末の巻付は作業、半田付
は作業を全く必要としない構造であるため、ノイズフィ
ルタ装置を製造するための作業工数が従来に比べて簡素
化され、自動機を用い製作することも可能で、安価なノ
イズフィルタ装置を提供することができる。As explained above, in the noise filter device according to the manufacturing method of the present invention, winding of the winding around the magnetic core and winding of the end of the winding around the pin terminal are performed to form the inductor, and no work is required for soldering. Since the noise filter device does not require a structure, the number of man-hours required for manufacturing the noise filter device is simplified compared to the conventional method, and it is also possible to manufacture the noise filter device using an automatic machine, making it possible to provide an inexpensive noise filter device.
第１図は、本発明のノイズフィルタ装置を構成する部品
の斜視図で、（ａ）、（Ｃ）は半丸溝つき軟磁性フェラ
イトコア、（ｂ）はリード端子付きフレーム。
第２図は、本発明によるノイズフィルタ装置の組立斜視
図で、（ａ）はリード端子にフェライトコアを収め樹脂
により一体成形した図、（ｂ）は完成したノイズフィル
タ装置の斜視図。
第３図は、従来のノイズフィルタ装置を示した斜視図で
、（ａ）は台座にインダクタを収納した図、（ｂ）は蓋
体。
以下余白
１・・・蓋体。２・・・固定用窓。３・・・台座。
４・・・丸ピン端子。５・・・インダクタ。６・・・銅
線。
７・・・溝。８・・・巻付は部。９・・・固定用樹脂。
１０・・・突起部。１１・・・位置決めガイド孔。
１１１・’・・フレーム。１２・・・リード端子。
１３・・・軟磁性フェライトコア（Ａ）。
１４・・・フェライトコア（Ｂ）。
１５・・・半丸溝部。１６・・・熱硬化性樹脂。
特許出願人 東北金属工業株式会社
ばっFIG. 1 is a perspective view of parts constituting the noise filter device of the present invention, in which (a) and (C) show a soft magnetic ferrite core with semicircular grooves, and (b) a frame with lead terminals. FIG. 2 is an assembled perspective view of the noise filter device according to the present invention, (a) is a view in which a ferrite core is housed in a lead terminal and integrally molded with resin, and (b) is a perspective view of the completed noise filter device. FIG. 3 is a perspective view showing a conventional noise filter device, in which (a) shows an inductor housed in a pedestal, and (b) shows a lid. Margin 1 below: Lid body. 2...Fixed window. 3...Pedestal. 4...Round pin terminal. 5...Inductor. 6...Copper wire. 7...Groove. 8...The wrapping is part. 9...Fixing resin. 10... Protrusion. 11...Positioning guide hole. 111...Frame. 12...Lead terminal. 13... Soft magnetic ferrite core (A). 14... Ferrite core (B). 15... Half-round groove. 16...Thermosetting resin. Patent applicant: Tohoku Metal Industry Co., Ltd.
Claims (1)
長方形に成形し２分割した軟磁性フェライトコアと、良
導電性の薄い金属板を打ち抜いて作ったリードフレーム
とで構成し、前記軟磁性フェライトコアの溝と同じ間隔
に配置されたリード端子を軟磁性フェライトコアの溝に
挿入し、リード端子の両面に軟磁性フェライトコアの溝
とリード端子を嵌合し組合せ、樹脂を用い一体に封止成
形し、ついでリード端子先端よりフレームを切断し、そ
の後リード端子を折り曲げて形成したことを特徴とする
ノイズフィルタ装置の製造方法。The soft magnetic ferrite core is composed of a rectangular shaped soft magnetic ferrite core with a lead terminal insertion groove for inserting the lead terminal and divided into two parts, and a lead frame made by punching out a thin metal plate with good conductivity. Insert the lead terminals arranged at the same intervals as the grooves of the core into the grooves of the soft magnetic ferrite core, fit the grooves of the soft magnetic ferrite core and the lead terminals on both sides of the lead terminal, combine them, and seal them together with resin. 1. A method for manufacturing a noise filter device, characterized in that it is formed by molding, then cutting a frame from the tip of a lead terminal, and then bending the lead terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1235088A JPH01188013A (en) | 1988-01-21 | 1988-01-21 | Manufacture of noise filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1235088A JPH01188013A (en) | 1988-01-21 | 1988-01-21 | Manufacture of noise filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01188013A true JPH01188013A (en) | 1989-07-27 |
Family
ID=11802833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1235088A Pending JPH01188013A (en) | 1988-01-21 | 1988-01-21 | Manufacture of noise filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01188013A (en) |
-
1988
- 1988-01-21 JP JP1235088A patent/JPH01188013A/en active Pending
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