JPH03219613A - Manufacture of surface-mounting coil - Google Patents
Manufacture of surface-mounting coilInfo
- Publication number
- JPH03219613A JPH03219613A JP1525890A JP1525890A JPH03219613A JP H03219613 A JPH03219613 A JP H03219613A JP 1525890 A JP1525890 A JP 1525890A JP 1525890 A JP1525890 A JP 1525890A JP H03219613 A JPH03219613 A JP H03219613A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- coil
- pieces
- coil element
- piece
- 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 abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
【発明の詳細な説明】
イ1発明の目的
〔産業上の利用分野〕
本発明は、巻線型の小型コイル素子を用I/N、絶縁樹
脂モールドで外装した表面実装型コイルの製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION (1) Object of the Invention [Field of Industrial Application] The present invention relates to a method for manufacturing a surface-mounted coil in which a small wire-wound coil element is packaged with an I/N and an insulating resin mold.
第3図は従来の表面実装型コイルの製造工程を説明する
斜視図である。FIG. 3 is a perspective view illustrating the manufacturing process of a conventional surface-mounted coil.
巻線型のコイル素子を用いた従来の表面実装型コイルは
第3図に示すように、矩形枠型コア2の対向辺に巻線を
巻き回したコイル素子1とリード端子フレーム3とを、
以下に説明する手順番こよ&J組み合せて作られていた
。リード端子フレーム3は、帯状金属板に長さ方向に沿
って一定間隔で抜き孔を形成したものであり、第3図の
左側よ釦ノ1番目の抜き孔部に示すように、両側のフレ
ーム部4、隣の抜き孔との境界の橋渡しフレーム5.互
いに対向する二つの端子板片6とが抜き孔により形成さ
れている。端子板片6は先端に幅狭の力)らげ片7を備
えている。このからげ片7を第3図の左側より第2番目
の抜き孔部に示すように、根元で直角に折り曲げて立上
がり部とする。次に第3図の左側より第3番目の抜き孔
部に示すように、第1回目の絶縁樹脂モールドにより、
コイル素子1を収納できる凹部9をもち、上面からから
げ片7の先端がr形に突出した箱型容器8を成形する。As shown in FIG. 3, a conventional surface mount coil using a wire-wound coil element has a coil element 1 with a wire wound around opposite sides of a rectangular frame core 2 and a lead terminal frame 3.
It was made by combining the steps described below. The lead terminal frame 3 is a strip-shaped metal plate in which punched holes are formed at regular intervals along the length direction, and as shown in the first punched hole part of the button on the left side of FIG. Part 4, bridging frame at the boundary with the adjacent punch hole 5. Two terminal plate pieces 6 facing each other are formed by punch holes. The terminal plate piece 6 is provided with a narrow barb piece 7 at its tip. This binding piece 7 is bent at a right angle at the base to form a rising part, as shown in the second punch hole from the left side in FIG. Next, as shown in the third punch hole from the left side of Figure 3, the first insulating resin mold
A box-shaped container 8 is formed, which has a recess 9 in which the coil element 1 can be accommodated, and in which the tip of a barbed piece 7 projects in an r-shape from the top surface.
凹部9はコイル素子1の高さより若干小さい深さである
。この凹部9にコイル素子lを収納して巻線の両端をか
らげ片7に接続してから、第2回目の絶縁樹脂モールド
10により箱型容器8およびコイル素子1の上部を覆い
(第3図左側より第4番目の抜き孔部参照)直方体に成
形する。第3図の破線で示す位置から端子板片6を切断
して表面実装型コイルにしていた。第4図は、このよう
にして完成した表面実装型コイルの正面断面図を示す。The depth of the recess 9 is slightly smaller than the height of the coil element 1. After storing the coil element l in this recess 9 and connecting both ends of the winding to the binding piece 7, the box-shaped container 8 and the upper part of the coil element 1 are covered with a second insulating resin mold 10 (a third (See the fourth punch hole from the left side of the figure) Form into a rectangular parallelepiped. The terminal plate piece 6 was cut from the position indicated by the broken line in FIG. 3 to form a surface-mounted coil. FIG. 4 shows a front cross-sectional view of the surface-mounted coil thus completed.
以上のように従来の表面実装型コイルは2回の絶縁樹脂
モールドにより、コイル素子lとリード用端子板片6を
一体に成形していた。As described above, in the conventional surface-mounted coil, the coil element 1 and the lead terminal plate piece 6 are integrally molded by two insulating resin moldings.
上述した製造方法に於ては、第2回目の:@縁樹脂モー
ルドを含むので、二組のモールド金型が必要であり、作
業時間が長く、資材費と加工費が高いという問題があっ
た。In the above-mentioned manufacturing method, since it includes the second rim resin mold, two sets of molds are required, and there are problems in that the working time is long and the material and processing costs are high. .
本発明は前記問題点を解決するため1回のモールド作業
で、しかも簡単な作業で組立てできる安価な表面実装型
コイルの製造方法を提供しようとするものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an inexpensive method for manufacturing a surface-mounted coil that can be assembled in one molding operation and in a simple operation.
口0発明の構成
〔課題を解決するための手段〕
本発明は、コイル素子として矩形枠型コアの対向長辺部
に巻線を施したものを用い、リード端子フレームの端子
板片の先端立上がり部にからげ片と、中間の高さに段部
を有する位置決め片とを形成することにより上述の課題
を解決するものである。Configuration of the Invention [Means for Solving the Problems] The present invention uses a coil element in which wires are wound on opposite long sides of a rectangular frame core, and the tip of the terminal plate piece of the lead terminal frame is The above-mentioned problem is solved by forming a binding piece on the part and a positioning piece having a stepped part at an intermediate height.
即ち本発明は、帯状金属板に長手方向に沿って一定間隔
で抜き孔を形成したリード端子フレームの、長手方向と
直交する方向の両側から突設された一対の端子板片に、
巻線型のコイル素子を接続して絶縁樹脂モールドにより
外装してなる表面実装型コイルの製造方法に於て、前記
コイル素子は矩形枠型コアの対向長辺部に単一の巻線が
施されてなり、前記端子板片は、先端立上がり部にから
げ片が形成されるとともに中間の高さに段部を有する位
置決め片が形成されており、前記コイル素子を前記位置
決め片に前記コアの対向短辺部を係合して前記一対の端
子板片に橋渡して載せ、前記からげ片に接続した後、絶
縁樹脂モールドにより外装して成ることを特徴とする表
面実装型コイルの製造方法である。That is, the present invention provides a pair of terminal plate pieces protruding from both sides in a direction perpendicular to the longitudinal direction of a lead terminal frame in which punch holes are formed at regular intervals along the longitudinal direction of a band-shaped metal plate.
In a method for manufacturing a surface-mounted coil in which wire-wound coil elements are connected and covered with an insulating resin mold, the coil element has a single winding on opposite long sides of a rectangular frame-type core. The terminal plate piece has a barb piece formed at the tip rising part and a positioning piece having a stepped part at an intermediate height, and the coil element is placed on the positioning piece facing the core. A method for producing a surface mount type coil, which comprises: engaging the short sides, mounting the coil across the pair of terminal plate pieces, connecting the terminal plate to the connecting piece, and then covering the coil with an insulating resin mold. .
第1図に於て、端子板片11の位置決め片13は、その
段部14と直立部15が、コイル素子1のコアの対向短
辺部の底面と対角線方向の内周角部とにそれぞれ係合し
て、コイル素子を端子板片に橋渡して保持することによ
り位置決めされ1回のモールドによりコイルを一体化で
きる。In FIG. 1, the positioning piece 13 of the terminal plate piece 11 has a stepped portion 14 and an upright portion 15 on the bottom surface of the opposing short side of the core of the coil element 1 and on the diagonal inner corner, respectively. By engaging and holding the coil element across the terminal plate piece, the coil element can be positioned and integrated by one molding process.
本発明の一実施例を、第1図を参照して説明する。 An embodiment of the present invention will be described with reference to FIG.
第1図は本発明による表面実装型コイルの製造工程を説
明するための斜視図である。第1図に於て、コイル素子
1は、矩形枠型コア2の対向長辺に1個の巻線が施され
たものである。FIG. 1 is a perspective view for explaining the manufacturing process of a surface-mounted coil according to the present invention. In FIG. 1, a coil element 1 has a rectangular frame core 2 with one winding on opposite long sides.
リード端子フレーム3は、帯状金属板にその長さ方向に
沿って一定間隔で僅かな幅の中央部をもつH形状の抜き
孔を形成したものである。第1図の左側より第1番目の
抜き孔部に示すように、橋渡しフレーム5で繋がれた両
側のフレーム部4の若干喰い違った個所から延び、同じ
幅寸法の一対の端子板片11が形成されている。この一
対の端子板片11の橋渡しフレーム5に近い方の側縁の
間隔(第1図にWOで示す)は、矩形枠型コア2の外周
の短辺長さとほぼ同じであり、各々の他方の側縁間の間
隔(対向幅)は矩形枠型コア2の内周の短辺長さよりも
短い寸法である。端子板片11の先端にフレーム部4に
向かって所要の長さの切れ目12が形成されており、こ
の切れ目12の間隔(第り図にWで示す)はコア2の内
周の短辺長さとほぼ同じか、僅かに小さい寸法に設定さ
れる。切れ口12のa渡しフレーム5寄りの部分はから
げ片7であり、反対側の部分は位置決め片13である。The lead terminal frame 3 is a strip-shaped metal plate in which H-shaped holes having a small width in the center are formed at regular intervals along the length of the metal plate. As shown in the first punch hole from the left side of FIG. 1, a pair of terminal plate pieces 11 having the same width extend from slightly different parts of the frame parts 4 on both sides connected by the bridging frame 5. It is formed. The distance between the side edges of the pair of terminal plate pieces 11 closer to the bridging frame 5 (indicated by WO in FIG. 1) is approximately the same as the short side length of the outer circumference of the rectangular frame core 2, and The distance between the side edges (opposing width) is shorter than the short side length of the inner circumference of the rectangular frame core 2. A cut 12 of a required length is formed at the tip of the terminal plate piece 11 toward the frame portion 4, and the interval between the cuts 12 (indicated by W in the figure) is equal to the length of the short side of the inner circumference of the core 2. The dimensions are set to be approximately the same as, or slightly smaller than. The part of the cut 12 closer to the a-crossing frame 5 is the barb piece 7, and the part on the opposite side is the positioning piece 13.
からげ片7は従来のものと同様に、先端近傍に方形切り
欠きを有している。The barb piece 7 has a rectangular notch near its tip, similar to the conventional one.
端子板片11の先端部は、次に第1図左側より第2番目
の抜き孔部に示すように、切れ目12の終端より傷かに
フレーム部4側で直角に折り曲げて立ち上げられ、位置
決め片13は切れ目12の終端の高さで抜は穴の中央側
へ水平に折り曲げられ、自由端がさらに直角に立てられ
て段部14と直立部15が形成されている。直立部15
の間隔(第1図にして示す)はコア2の内周の長辺長さ
とほぼ同じに設定される。Next, the tip of the terminal plate piece 11 is bent at a right angle on the frame portion 4 side from the end of the cut 12, as shown in the second punch hole from the left side in FIG. 1, and then positioned. The piece 13 is bent horizontally toward the center of the punched hole at the height of the end of the cut 12, and the free end is further erected at a right angle to form a stepped portion 14 and an upright portion 15. Upright part 15
The interval (shown in FIG. 1) is set to be approximately the same as the long side length of the inner circumference of the core 2.
このような形状の端子板片11であるから、更に、第1
図左側から第3番目の抜き孔部に示したように、コイル
素子1をその対向短辺部の底面を段部14に当接して、
橋渡しに配置すると、対向する直立部15のからげ片7
側の側縁が、それぞれコア2の対角線方向の内周角部に
係合して、コイル素子1を位置決めして保持できる。Since the terminal plate piece 11 has such a shape, the first
As shown in the third punch hole from the left side of the figure, the coil element 1 is brought into contact with the bottom surface of its opposing short side against the stepped portion 14,
When placed in a bridging position, the ribs 7 of the opposing upright portions 15
The side edges engage with the diagonally inner circumferential corners of the core 2, respectively, so that the coil element 1 can be positioned and held.
巻線をからげ片7に接続してから、第1図の左側から第
4番目の抜き孔部に示すように、絶縁樹脂モールドによ
り外装し、破線で示す個所で端子板片11を切断して表
面実装型コイルが出来上がる。After connecting the winding to the tie piece 7, as shown in the fourth punch hole from the left side of FIG. A surface-mounted coil is completed.
第2図は上述の製造工程で作られた表面実装型コイルの
正面断面図である0以上第1図及び第2図かられかるよ
うに1回の樹脂モールド作業によりコイルは一体に成形
されていることがわかる。Figure 2 is a front cross-sectional view of the surface mount type coil made by the above manufacturing process.As can be seen from Figures 1 and 2, the coil is integrally molded in one resin molding operation. I know that there is.
ハ1発明の効果
〔発明の効果〕
本発明によれば、巻線型のコイル素子をリード端子フレ
ームに直接に、簡単に位置決めして保持できるので、−
回の絶縁樹脂モールドで外装することができ、−組のモ
ールド金型ですみ、作業時間を短縮でき、安価な表面実
装型コイルを提供できる。C1 Effects of the Invention [Effects of the Invention] According to the present invention, the wire-wound coil element can be easily positioned and held directly on the lead terminal frame.
The coil can be packaged with two insulating resin molds, requiring only two sets of molds, reducing working time and providing an inexpensive surface-mounted coil.
第1図は、本発明による表面実装型コイルの製造工程を
説明するための斜視図。
第2図は、本発明による表面実装型コイルの完成品の一
実施例を示す正面断面図。
第3図は、従来の表面実装型コイルの製造工程を説明す
る斜視図。
第4図は、表面実装型コイルの従来例を示す正面断面図
。
1・・・コイル素子、2・・・矩形枠型コア、3・・・
リード端子フレーム、4・・・フレーム部、5・・・橋
渡しフレーム、6.11・・・端子板片、7・・・から
げ片、8・・・箱型容器、9・・・凹部、10・・・第
2回目の絶縁樹脂モールド、12・・・切れ目、13・
・・位置決め片、14・・・段部、15・・・直立部、
16・・・モールド樹脂。
第1図FIG. 1 is a perspective view for explaining the manufacturing process of a surface-mounted coil according to the present invention. FIG. 2 is a front sectional view showing an embodiment of a completed surface-mounted coil according to the present invention. FIG. 3 is a perspective view illustrating the manufacturing process of a conventional surface-mounted coil. FIG. 4 is a front sectional view showing a conventional example of a surface-mounted coil. 1... Coil element, 2... Rectangular frame core, 3...
Lead terminal frame, 4... Frame portion, 5... Bridging frame, 6.11... Terminal plate piece, 7... Karaoke piece, 8... Box-shaped container, 9... Recessed part, 10... Second insulating resin mold, 12... Cut, 13.
...Positioning piece, 14...Stepped part, 15...Upright part,
16...Mold resin. Figure 1
Claims (1)
を形成したリード端子フレームの、長手方向と直交する
方向の両側から突設された一対の端子板片に、巻線型の
コイル素子を接続して絶縁樹脂モールドにより外装して
なる表面実装型コイルの製造方法に於て、前記コイル素
子は矩形枠型コアの対向長辺部に単一の巻線が施されて
なり、前記端子板片は、先端立上がり部にからげ片が形
成されるとともに中間の高さに段部を有する位置決め片
が形成されており、前記コイル素子を前記位置決め片に
前記コアの対向短辺部を係合して前記一対の端子板片に
橋渡して載せ、前記からげ片に接続した後、絶縁樹脂モ
ールドにより外装して成ることを特徴とする表面実装型
コイルの製造方法。1. A wire-wound coil element is connected to a pair of terminal plate pieces that protrude from both sides in a direction perpendicular to the longitudinal direction of a lead terminal frame in which holes are formed at regular intervals along the longitudinal direction of a strip-shaped metal plate. In the method for manufacturing a surface mount type coil which is externally covered with an insulating resin mold, the coil element has a single winding on opposite long sides of a rectangular frame core, and the terminal plate piece is , a locating piece is formed in which a barb piece is formed at the tip rising part and a step part is formed at an intermediate height, and the coil element is engaged with the opposing short side part of the core with the positioning piece. A method of manufacturing a surface mount type coil, characterized in that it is mounted on the pair of terminal plate pieces bridgingly, connected to the rib piece, and then covered with an insulating resin mold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1525890A JPH03219613A (en) | 1990-01-24 | 1990-01-24 | Manufacture of surface-mounting coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1525890A JPH03219613A (en) | 1990-01-24 | 1990-01-24 | Manufacture of surface-mounting coil |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03219613A true JPH03219613A (en) | 1991-09-27 |
Family
ID=11883831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1525890A Pending JPH03219613A (en) | 1990-01-24 | 1990-01-24 | Manufacture of surface-mounting coil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03219613A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5748065A (en) * | 1994-03-30 | 1998-05-05 | Matsushita Electric Industrial Co., Ltd. | Chip inductor |
-
1990
- 1990-01-24 JP JP1525890A patent/JPH03219613A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5748065A (en) * | 1994-03-30 | 1998-05-05 | Matsushita Electric Industrial Co., Ltd. | Chip inductor |
US5977857A (en) * | 1994-03-30 | 1999-11-02 | Matsushita Electric Industrial Co., Ltd. | Chip inductor |
US6118364A (en) * | 1994-03-30 | 2000-09-12 | Matsushita Electric Industrial Co., Ltd. | Chip inductor |
US6151770A (en) * | 1994-03-30 | 2000-11-28 | Matsushita Electric Industrial Co., Ltd. | Method of forming a chip inductor |
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