JP3032607B2 - Manufacturing method of coil device - Google Patents
Manufacturing method of coil deviceInfo
- Publication number
- JP3032607B2 JP3032607B2 JP3140878A JP14087891A JP3032607B2 JP 3032607 B2 JP3032607 B2 JP 3032607B2 JP 3140878 A JP3140878 A JP 3140878A JP 14087891 A JP14087891 A JP 14087891A JP 3032607 B2 JP3032607 B2 JP 3032607B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- conductive plate
- manufacturing
- wide
- width
- 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.)
- Expired - Fee Related
Links
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、テレビ，ラジオ，テー
プレコーダ等に使用されるコイル装置の製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a coil device used for a television, a radio, a tape recorder and the like.
【０００２】[0002]
【従来の技術】従来、テレビ，ラジオ，テープレコーダ
等に使用されるコイル装置として実開昭61-76927に開示
されたものがある。2. Description of the Related Art Conventionally, there is a coil device used in a television, a radio, a tape recorder, and the like, which is disclosed in Japanese Utility Model Application Laid-Open No. 61-76927.
【０００３】図９は同明細書に添付された主要図面であ
る。同図に示すフレキシブルな印刷配線板２の板面上に
組立後線輪形態となるように導体パターン３を配置し、
前記印刷配線板２に磁心４を貫通させる切抜き孔を複数
設け、前記切抜き孔の一つおきに同一方向に貫通するよ
う磁心４を通して構成したものである。FIG. 9 is a main drawing attached to the specification. The conductor pattern 3 is arranged on the board surface of the flexible printed wiring board 2 shown in FIG.
The printed wiring board 2 is provided with a plurality of cutout holes through which the magnetic core 4 penetrates, and the core 4 is formed so as to penetrate every other cutout hole in the same direction.
【０００４】また、同じく従来技術として特開昭56-402
09号公報に開示されたコイル装置がある。これは図１０
に示すように扁平帯状の導電性板部材５に長手方向に適
宜間隔でかつ左右両側方に交互に解放する複数の切込溝
６を形成した後、図１１に示すように連結部８を中心と
して細巾板部分７を交互に相反する方向に離間するよう
に変形させてコイル装置９を得るようにしたものであ
る。Also, Japanese Patent Application Laid-Open No. 56-402
There is a coil device disclosed in Japanese Patent Application Laid-Open No. 09-206. This is shown in FIG.
As shown in FIG. 11, after a plurality of cut grooves 6 are formed in the flat strip-shaped conductive plate member 5 at appropriate intervals in the longitudinal direction and alternately released on both left and right sides, the connecting portion 8 is centered as shown in FIG. The coil device 9 is obtained by deforming the narrow plate portions 7 so as to be alternately separated in opposite directions.
【０００５】[0005]
【発明が解決しようとする課題】前記従来の装置の製造
方法では、平面搭載用のコイル装置として利用すること
が難しいという問題及び製造工程の複雑化を招くという
問題がある。これは、上記構成のコイル装置であれば、
切込溝によって分割された各コイル片を相互に離間させ
るように折曲する場合は、いずれか一方のみを折り曲げ
ただけでは方形状や円形状の形態を得ることができない
ことになり不都合を生ずるため、どうしても相互に相反
する方向に折曲する必要があるからである。この結果両
端の端子となる部分の面に対してコイル部分が上下（又
は左右）に膨出する形となり、このままでは平面搭載が
不可能となり端子部分のフォーミング等の加工が必要と
なる。従って、後工程でコイル内に磁心を挿入するよう
な場合には特別の工夫を要し製造工程の複雑化等を招く
こととなり製造工程の自動化が困難になる。The conventional method of manufacturing a device has a problem that it is difficult to use it as a coil device for mounting on a plane, and a problem that the manufacturing process is complicated. If this is the coil device with the above configuration,
In the case where the coil pieces divided by the cut grooves are bent so as to be separated from each other, it is not possible to obtain a square shape or a circular shape only by bending one of the coil pieces, thereby causing an inconvenience. Therefore, it is absolutely necessary to bend in mutually opposite directions. As a result, the coil portion bulges up and down (or left and right) with respect to the surface of the terminal portion at both ends, and if it is left as it is, mounting on a plane becomes impossible, and processing such as forming of the terminal portion is required. Therefore, when a magnetic core is inserted into a coil in a later process, a special device is required, which complicates the manufacturing process and makes it difficult to automate the manufacturing process.
【０００６】本発明は前記事情に鑑みてなされたもので
あり、平面搭載可能なコイル装置を得ることができ、か
つ製造工程の自動化に適した製造方法を提供することを
目的とするものである。The present invention has been made in view of the above circumstances, and has as its object to provide a manufacturing method which can obtain a coil device which can be mounted on a plane and which is suitable for automation of a manufacturing process. .
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するため
に本発明は、所定の幅と長さを有する導電板の中間部を
幅方向に前記所定の幅と同等の幅をもつように水平方向
片側に延在させた幅広の導電板部を形成する工程、前記
幅広導電板部の一方の側端から他方の側端近傍にかけて
幅方向に向う切込線を交互に入れて、長さ方向に沿う複
数の切込み線を形成する工程、前記幅広導電板部の前記
延在部側の先端部を前記導電板の上方に持ち上げて、前
記切込み線を介して連結された各片を折曲加工すること
により、前記導電板の幅に対応する位置上方に矩形状螺
線コイルを立脚形成する工程、前記矩形状螺線コイルの
両端に位置する導電板部分の所定の領域を切離して、平
面搭載用端子部を形成する工程とを有することを特徴と
する。Means for Solving the Problems The present invention to achieve the object, the horizontal so as to have a predetermined width equal to the width of the middle portion of the conductive plate in the width direction having a predetermined width and length forming a conductive plate portion of the wide which is extending in the direction <br/> one side, the
From the side edge of the hand of the wide conductor plate portion toward the other side end near
Put cut line toward the width direction alternately, that form a plurality of score lines along the length step, the said wide conductive plate portion
The previous end of the extending portion side lifted above the conductive plate, by each piece which is connected via the score lines to bending process, a rectangular shape at a position upward corresponding to the width of the conductive plate The method includes the steps of forming a helical coil in a standing position, and separating a predetermined area of a conductive plate portion located at both ends of the rectangular helical coil to form a planar mounting terminal portion.
【０００８】[0008]
【作用】導電板上に延在部側の先端部を持ち上げて切込
線を介して連結された各片を折曲加工することにより、
水平導電板上のみに突出する矩形状螺線コイルが立脚形
成されることになり、導電板基端面をそのまま平面搭載
用端子部として利用できる。By bending each piece linked via a score lines to lift the previous end of the extending portion side to the action conductive plate,
A rectangular spiral coil projecting only on the horizontal conductive plate is formed as a standing leg, and the base end surface of the conductive plate can be used as it is as a flat mounting terminal portion.
【０００９】[0009]
【実施例】以下図面を参照して本発明を具体的に説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings.
【００１０】図１は本発明を用いて得られたコイル装置
を示す斜視図である。これは、平板状導電板１１ｈ（図
３に示す）の中間部に矩形状の螺線コイル１１が一体的
に立脚形成されてなるコイル装置１０であって、前記矩
形状螺線コイル１１は複数のコイル片１１ａ乃至１１ｆ
が並列状態で交互に起立する起立片１１Ａ，１１Ｂと各
列間の対応する起立片の頂部間を連結する上方水平連結
片１１Ｃ及び各起立片の下方を連結する下方水平連結片
１１Ｄとによって連結形成され、コイル１１が形成され
ていない前記導電板両端部１１ｇ，１１ｇを外部基板搭
載用平担部（平面搭載用端子部）としたことを特徴とす
るものである。FIG. 1 is a perspective view showing a coil device obtained by using the present invention. This is a flat conductive plate 11h (FIG.
Rectangular spiral coil 11 to an intermediate portion of the illustrated 3) is a coil unit 10 formed by standing formed integrally, the rectangular
The spiral coil 11 has a plurality of coil pieces 11a to 11f.
The upper horizontal connecting piece 11C for connecting the upright pieces 11A and 11B alternately standing in a parallel state and the top of the corresponding upright piece between each row, and the lower horizontal connecting piece for connecting the lower part of each upright piece.
11D , wherein both end portions 11g of the conductive plate, on which the coil 11 is not formed, are formed as flat portions for mounting an external substrate (terminal portions for mounting on a flat surface) .
【００１１】ところで、各隣接するコイル片１１ａ乃至
１１ｆの相対向する両端部には、各隣接するコイル片同
士が接触しないようそれぞれ切欠部１４，１４が形成さ
れるとともに、両端部近傍であって折曲部分には、折曲
によるクラックを防止する円形状からなる切欠孔１５が
形成されている。このコイル装置は、露出状態のまま使
用されるか、あるいは螺線状コイル部分がモールド部材
１２によって樹脂モールドされた状態で使用される。こ
の場合、前記導電板両端部１１ｇ，１１ｇはモールド部
材１２の壁面に平行となるように折曲される（図中鎖線
で示す１１ｇ′の状態）。By the way, notches 14 and 14 are formed at opposite ends of each of the adjacent coil pieces 11a to 11f so that the adjacent coil pieces do not come into contact with each other. A circular cutout 15 is formed in the bent portion to prevent cracks due to bending. This coil device is used in an exposed state or in a state where the spiral coil portion is resin-molded by the molding member 12. In this case, both end portions 11g of the conductive plate are bent so as to be parallel to the wall surface of the mold member 12 (state of 11g 'shown by a chain line in the figure).
【００１２】このようなコイル装置であれば端子となる
導電板１１ｇを底面としてその上方に螺線状コイル１１
が形成され、また端子１１ｇの幅Ｗと螺線状コイル１１
の幅とが略等しくなるコイル装置が得られる。In such a coil device, the spiral coil 11 is disposed above the conductive plate 11g serving as a terminal.
Are formed, and the width W of the terminal 11g and the spiral coil 11
Is obtained, the width of which is substantially equal to the coil device.
【００１３】図２は本発明によって製造された他のコイ
ル装置を示すものであり、図１と異なるのは、螺線状コ
イル１１内に角柱状磁心１３を挿入配置したものであ
る。FIG. 2 shows another coil device manufactured according to the present invention. The difference from FIG. 1 is that a prismatic core 13 is inserted and arranged in a spiral coil 11.
【００１４】次に、以上の構成を備えたコイル装置の製
造工程について、図３，図４を参照して説明する。Next, a manufacturing process of the coil device having the above configuration will be described with reference to FIGS.
【００１５】まず、導電板であるリードフレーム１１ｉ
の中央部分をプレス加工して、図３に示す形状に成型す
る（ハッチング部が切抜き部である）。このプレス加工
時に、後に螺線状コイルとなる部分の一方の側端から他
方の側端近傍にかけて交互に切込線１７ａ，１７ｂ，…
が形成され、また、各切込線の端部には貫通孔１５′を
有する連結部１１Ｅ，１１Ｆが形成され、かつ、各隣接
する連結部間には切欠部１４，１４が形成される。First, a lead frame 11i which is a conductive plate
Is pressed into a shape shown in FIG. 3 (a hatched portion is a cutout portion). At the time of the press working, the cut lines 17a, 17b,... Are alternately formed from one side end to the vicinity of the other side end of a portion to be a spiral coil later.
There is formed, also the through-hole 15 'at the end of each score line
Connecting portion 11E having, 11F are formed, and each adjacent
Notches 14, 14 are formed between the connecting portions.
【００１６】前記プレス加工の詳細を説明する。The details of the press working will be described.
【００１７】リード片（端子）１１ｇ、１１ｇとなる連
結片１１ｈ，１１ｈが図示上下に配置され、これら連結
片１１ｈ，１１ｈの中間部に幅広導電板部１７が連結さ
れるように左右に２つの方形孔Ｈ1 ，Ｈ2 を形成する。
この孔の幅は一方（右側）Ｈ1 よりも他方（左側）Ｈ2
の方が広くなるように設ける。そして幅広導電板部１７
は前記連結片１１ｈの中心線Ｌに対して一方（右側）の
間隔が狭く、他方（左側）の間隔が約３倍程度となるよ
うに水平方向の幅方向に延在させて片寄せられた形状と
しておく。つまり前記幅広導電板部は、前記導電板の幅
間隔と同じ間隔を有する基部側１７Ａと、それに続けて
導電板の幅間隔Ｗ1と同一長さＷ1を有する延在部１７Ｂ
とを有する幅広の導電板部１７となっている。そして、
この幅広導電板部１７に前記中心線Ｌに交差する方向
（つまり、幅方向）に交互に相反する方向から切込線１
７ａ，１７ｂ，…を導電板の長さ方向に沿って複数個形
成する。このような各切込線相互間がコイル用片１１
ａ，１１ｂ，…となる。かかるコイル用片はそれぞれの
切込線端部１１Ｅ、１１Ｆにおいて連結された状態で後
の立脚形成工程において立脚されることにより一連のコ
イルとして機能する（この意味で前記各片をコイル用片
とも言う）。このコイル用片の各切込線端部１１Ｅ、１
１Ｆにはそれぞれ貫通孔１５′が形成されており、更
に、各隣接するコイル用片端部間には切欠部１４が形成
されている。そして、前記各切込線の両端部に形成され
た貫通孔１５′の各列に沿うラインｌ1 ，ｌ3 及びこれ
らのラインの中央線ｌ2 が次工程におけるコイル用片折
曲用のラインとなる。各ライン間の幅は相互に同一幅Ｗ
1 となっている。Connecting pieces 11h, 11h serving as lead pieces (terminals) 11g , 11g are vertically arranged in the figure, and two connecting pieces 11h, 11h are connected to the left and right so that the wide conductive plate portion 17 is connected to an intermediate portion. Square holes H 1 and H 2 are formed.
The width of the hole is on the other hand (right) other than H 1 (left) H 2
Is provided to be wider. And the wide conductive plate portion 17
The spacing of the other hand (right) with respect to the center line L of the connecting piece 11h is narrow, interval between the other (left) was biased by horizontally extending in the width direction to be approximately 3 times Keep the shape. That the wide conductive plate portion includes a base portion side 17A having the same spacing as the width spacing of the conductive plate, extending portion 17B having a width interval W 1 of the same length W 1 of the conductive plate followed it
And a wide conductive plate portion 17 having the following. And
The cutting line 1 is formed on the wide conductive plate portion 17 from a direction which is alternately opposite to a direction intersecting the center line L (that is, a width direction).
Are formed along the length direction of the conductive plate. Each such score lines for mutual coil piece 11
a, 11b,... Each such coil pieces score line ends 11E, after a state of being connected in 11F
Function as a series of coils by being erected in the erection forming step (in this sense, each of the pieces is
Also called). Each score line end 11E of the coil piece 1
1F are formed respectively through hole 15 ', a further, between coil piece ends each adjacent are formed notch 14. Lines l 1 and l 3 along each row of through holes 15 ′ formed at both ends of each of the cut lines and a center line l 2 of these lines are lines for one-fold bending of the coil in the next step. Becomes The width between each line is the same width W
Has become 1 .
【００１８】次に図４を参照して螺線状コイル１１を形
成する工程を説明する。[0018] Then 4 the irradiation to participate illustrating a step of forming a spiral-shaped coil 11.
【００１９】これは前記図３における延在部１７Ｂの先
端部に位置する切込線端部１１Ｆを持ち上げた状態で各
折曲部ｌ1 乃至ｌ3 を目印として、隣接するコイル用片
を交互に相反する方向に折曲することによって矩形状螺
線コイルを形成する。具体的には前記延在部側１７Ｂに
形成された切込線によって分割された各コイル用片のう
ち、１つ置きに配置されたものを前記折曲ラインｌ2の
位置で治具等によって押さえた状態で張り出し側端部を
持ち上げて、押さえられていないコイル用片の他端（幅
広導電板部の基部側１７Ａ）上に立脚するように直角に
折曲することによって連結片１１ｈ、１１ｈ（端子１１
ｇ、１１ｇ）間の上方に立脚形成された矩形状の螺線コ
イルを得る。このようにして図４に示すように一方のラ
インｌ3に並ぶ起立片１１Ａと他方のラインｌ2 に並ぶ
起立片１１Ｂとが並列になるように形成され、各列間の
対応する起立片１１Ａ，１１Ｂの頂部同士が上方水平連
結部１１Ｃによって連結され、各列間の対応する起立片
１１Ａ，１１Ｂの下面が下方水平連結片１１Ｄによって
連結されるようになる。このようにして導電板の上方の
みに突出する矩形状螺線コイル１１が立脚形成される。
このとき、コイル用片の端部に形成された貫通孔１５′
があるため折曲起立が容易となり、また、コイル用片相
互間の切欠部１４，１４は起立された隣接コイル片端部
間の接触を防止する作用を有する。This is the end of the extension 17B in FIG.
Each folded portion l 1 to l 3 in a state of lifting the score lines end 11F located at the end as a mark, a rectangular spiral by bending in opposite directions alternately piece for adjacent coils Form a coil. Specifically among the coil pieces divided by score lines formed in the extending portion side 17B, the jig or the like that are arranged in every second one at the position of the fold line l 2 lift the projecting end in the state in which pressing was, the other end of the strip coil which is not pressed (width
The connecting pieces 11h, 11h (terminal 11 ) are bent at right angles so as to stand on the base side 17A of the wide conductive plate portion.
g, 11g) to obtain a rectangular spiral coil formed on the upper leg. Thus is the upright strip 11B arranged in the standing piece 11A and the other line l 2 arranged in one line l 3 4 is formed so as to be parallel, the corresponding standing piece 11A between each column , 11B are connected by the upper horizontal connecting portion 11C, and the lower surfaces of the corresponding standing pieces 11A, 11B between the rows are connected by the lower horizontal connecting piece 11D. In this way, the rectangular spiral coil 11 protruding only above the conductive plate is formed as a standing leg.
At this time, the through hole 15 formed in the end portion of the coil piece '
It is easy to bent upright since there is also cutout portions 14, 14 between the coil pieces each other has a function to prevent contact between adjacent coil pieces end <br/> which is erected.
【００２０】尚、コイル片の起立形成後は切込線端部の
貫通孔１５′は、円形状切欠孔１５となる。After the coil pieces are formed upright, the through hole 15 'at the end of the cut line becomes a circular cutout hole 15.
【００２１】その後、前記矩形状螺線コイルの両端に位
置する導電板両端部１１ｇをライン２１部分（所定領
域）でリードフレーム１１ｉの連結片１１ｈから切断
（切離）することによって前記コイル装置１０が出来上
る。Thereafter, the two ends of the rectangular spiral coil are positioned at both ends.
Place both ends 11g of the conductive plate on the line 21 (predetermined area).
Area) cut from the connecting piece 11h of the lead frame 11i
(Separation), the coil device 10 is completed.
【００２２】尚、リードフレーム１１ｉの連結片１１ｈ
から切断する前に螺線状コイルを樹脂モールドしてもよ
いし、また、螺線状コイル１１内に磁心１３を挿入配置
した後に樹脂モールド１２としてもよい。なお、磁心を
挿入配置する際には接着剤を塗布してコイル片と磁心と
を仮固定しておくことによって各コイル片の移動を防止
することができる。The connecting piece 11h of the lead frame 11i
The spiral coil may be resin-molded before cutting from the coil, or the resin mold 12 may be formed after the magnetic core 13 is inserted and arranged in the spiral coil 11. In addition, when the magnetic core is inserted and arranged, the adhesive is applied to temporarily fix the coil pieces and the magnetic core, so that the movement of each coil piece can be prevented.
【００２３】以上の実施例によれば、リードフレームの
加工、コイル用片の起立及び折曲、磁心の挿入配置、樹
脂モールド、リードフレームからの切断、端子部の折曲
等は全て治具を用いて行ない、一連の流れの工程として
行なうことができるので自動化、量産化に極めて有効で
ある。また、底部が平担となる構造のものを得ることが
できるので磁心の挿入が容易となり、また、完成品の外
部基板への搭載も容易かつ正確に行えるという効果もあ
る。According to the above embodiment, the jig is used for the processing of the lead frame, the erecting and bending of the coil pieces, the insertion arrangement of the magnetic core, the resin molding, the cutting from the lead frame, and the bending of the terminal portion. It is very effective for automation and mass production because it can be performed using a series of steps. In addition, since a structure having a flat bottom can be obtained, the insertion of the magnetic core is facilitated, and the finished product can be easily and accurately mounted on an external substrate.
【００２４】尚、本発明は前記一実施例に限定されるも
のではなく、その要旨の範囲内において様々に変形実施
が可能である。The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the invention.
【００２５】図５はリードフレーム２５ｉの中央部分を
前述とは異なる他の形状にプレス加工した状態を示す説
明図である。FIG. 5 is an explanatory view showing a state where the pressing to form different from the form and above a central portion of the lead frame 25i.
【００２６】同図に示す成形前の幅広導電板部２５と、
前記幅広導電板部１７との相違点は、図示成形前の幅広
導電板部２５の両側端に、それぞれ連結部（以下タイバ
ーという）２６，２７が形成されている点である。A wide conductive plate portion 25 before molding shown in FIG.
Differences from the wide conductive plate portion 17, the front shown molded wide
This is a point that connecting portions (hereinafter referred to as tie bars) 26 and 27 are formed on both side ends of the conductive plate portion 25, respectively.
【００２７】このようなタイバー２６，２７は、図６に
示すように各コイル用片２５ａ乃至２５ｆを折曲して起
立形成した際、その変形やコイルとしての各コイル片間
距離のばらつきの発生を防止する機能を担うものであ
る。すなわち、導電板がスプリングバックを生じやすい
製造条件の際に極めて有効であり、この様な場合であっ
ても磁心の挿入を極めて容易とすることができる。[0027] Such tie bars 26 and 27, when forming upright by bending the respective coil pieces 25a to 25f as shown in FIG. 6, the variation of each coil pieces distance as the deformation and coil generating It is responsible for the function of preventing That is, the conductive plate is extremely effective under manufacturing conditions in which springback is likely to occur, and even in such a case, insertion of the magnetic core can be extremely facilitated.
【００２８】このようなタイバー２６，２７はリードフ
レームから切断成型される際に同時に切断除去される。[0028] Such tie bar over 26 and 27 are simultaneously cut and removed when the cutoff shaping from the lead frame.
【００２９】本発明は前記実施例に限定されず、種々の
変形実施が可能である。The present invention is not limited to the above embodiment, and various modifications can be made.
【００３０】例えば、前記実施例では螺線状コイル内に
固形の磁心（フェライトコア）を挿入配置する場合につ
いて述べたが、この磁心をフェライト粉末入り樹脂で構
成することも考えられる。For example, in the above-described embodiment, a case has been described in which a solid magnetic core (ferrite core) is inserted and arranged in a spiral coil. However, it is conceivable that this magnetic core is formed of a resin containing ferrite powder.
【００３１】このような製造方法について図７をも参照
して説明する。螺線状コイル１１を立脚形成する迄は前
記図３，図４の実施例と同様と考えてよいので以下の説
明では磁心をコイル１１内に挿入配置する工程から説明
する。Such a manufacturing method will be described with reference to FIG. Until the spiral coil 11 is formed upright, it can be considered to be the same as the embodiment of FIGS. 3 and 4. Therefore, in the following description, the step of inserting and arranging the magnetic core in the coil 11 will be described.
【００３２】図７，図８に示すように前記コイル１１の
図示上下方向から、コイル１１の図示上部形状に対応す
る凹部４０ｄを備えた上型４０と、コイル１１の図示下
部形状に対応する凹部４１ａを備えた下型４１とを当接
させる。この当接により、凹部４０ｄと凹部４１ａとに
よりコイル１１が収納される空間４４（図８参照）が形
成される。As shown in FIGS. 7 and 8, an upper die 40 having a concave portion 40d corresponding to the illustrated upper shape of the coil 11 and a concave portion corresponding to the illustrated lower shape of the coil 11 from the vertical direction of the coil 11 as shown in FIG. The lower mold 41 provided with 41a is brought into contact. This contact forms a space 44 (see FIG. 8) in which the coil 11 is housed by the recess 40d and the recess 41a.
【００３３】このうち、上型４０のリードフレーム１１
ｉとの当接面４０ｃには、磁性粉入り樹脂を外部から流
入させるランナー４０ａと、前記空間４４へ磁性粉入り
樹脂を充填させるゲート４０ｂが形成されている。The lead frame 11 of the upper die 40 is
The contact surface 40c of i, and the runner 40a for flowing magnetic powder containing resin from the outside, the gate 40b to fill the magnetic powder containing resin to the space 44 is formed.
【００３４】そして、凹部４０ｄと凹部４１ａとにより
形成される空間４４に、ランナー４０ａ，ゲート４０ｂ
を介して磁性粉入り樹脂４５を充填する（図７，図８参
照）。[0034] Then, the space 44 formed by the recess 40d and the recess 41a, runner 40a, gate 40b
Is filled with the resin 45 containing the magnetic powder (see FIGS. 7 and 8).
【００３５】このようにして、充填された磁性粉入り樹
脂４５が硬化した後に上型４０，下型４１を離間させる
と、磁心がコイル１１内に形成される。When the upper mold 40 and the lower mold 41 are separated from each other after the filled resin 45 containing magnetic powder is cured, a magnetic core is formed in the coil 11.
【００３６】このような実施例方法によれば、磁心を螺
線状コイル内に形成する工程が極めて簡単になるという
利点を有する。According to such an embodiment, there is an advantage that the step of forming the magnetic core in the spiral coil is extremely simplified.
【００３７】[0037]
【発明の効果】以上詳述した本発明によれば、基板の上
方のみに突出するものであって平面搭載可能なコイル装
置を得ることができると共に、自動化、量産化に適した
製造方法を提供できる。According to the present invention described above in detail, according to the present invention, on a substrate
A coil device that protrudes only in one direction and can be mounted on a plane can be obtained, and a manufacturing method suitable for automation and mass production can be provided.
【図１】本発明によって得られるコイル装置の一例を示
す斜視図FIG. 1 is a perspective view showing an example of a coil device obtained by the present invention.
【図２】本発明によって得られるコイル装置の他の一例
を示す斜視図FIG. 2 is a perspective view showing another example of the coil device obtained by the present invention.
【図３】本発明の一実施例を説明するための製造工程平
面図FIG. 3 is a plan view of a manufacturing process for explaining an embodiment of the present invention.
【図４】本発明の一実施例を説明するための製造工程斜
視図FIG. 4 is a perspective view of a manufacturing process for explaining an embodiment of the present invention.
【図５】本発明の他の実施例を示す製造工程説明図FIG. 5 is an explanatory view of a manufacturing process showing another embodiment of the present invention.
【図６】本発明の他の実施例を示す製造工程説明図FIG. 6 is an explanatory view of a manufacturing process showing another embodiment of the present invention.
【図７】本発明の他の実施例を示す製造工程説明図FIG. 7 is an explanatory view of a manufacturing process showing another embodiment of the present invention.
【図８】本発明の他の実施例を示す製造工程説明図FIG. 8 is an explanatory view of a manufacturing process showing another embodiment of the present invention.
【図９】従来の製造方法によって得られるコイル装置を
示す説明図FIG. 9 is an explanatory view showing a coil device obtained by a conventional manufacturing method.
【図１０】従来の製造方法によって得られるコイル装置
を示す説明図FIG. 10 is an explanatory view showing a coil device obtained by a conventional manufacturing method.
【図１１】従来の製造方法によって得られるコイル装置
を示す説明図FIG. 11 is an explanatory view showing a coil device obtained by a conventional manufacturing method.
１０ コイル装置 １１ ら線状コイル １１ａ乃至１１ｆ コイル片 １１ｇ 端子 １１Ａ，１１Ｂ 起立部 １１Ｃ 上方水平連結部１１Ｄ 下方水平連結部 １１Ｅ，１１Ｆ 切込線端部 １４ 切欠部１７ コイル部 １７Ａ 基部側コイル部 １７Ｂ 張り出し側コイル部 ２６，２７ タイバーReference Signs List 10 Coil device 11 Linear coil 11a to 11f Coil piece 11g Terminal 11A, 11B Standing portion 11C Upper horizontal connecting portion 11D Lower horizontal connecting portion 11E, 11F Cut line end 14 Notch 17 Coil portion 17A Base side coil portion 17B Overhang side coil part 26, 27 Tie bar
Claims (7)
を幅方向に前記所定の幅と同等の幅をもつように水平方
向片側に延在させた幅広の導電板部を形成する工程、 前記幅広導電板部の一方の側端から他方の側端近傍にか
けて幅方向に向う切込線を交互に入れて、長さ方向に沿
う複数の切込み線を形成する工程、 前記幅広導電板部の前記延在部側の先端部を前記導電板
の上方に持ち上げて、前記切込み線を介して連結された
各片を折曲加工することにより、前記導電板の幅に対応
する位置上方に矩形状螺線コイルを立脚形成する工程、 前記矩形状螺線コイルの両端に位置する導電板部分の所
定領域を切離して、平面搭載用端子部を形成する工程と
を有することを特徴とするコイル装置の製造方法。1. An intermediate portion of a conductive plate having a predetermined width and length is horizontally oriented so as to have a width equivalent to the predetermined width in a width direction.
Forming a wide conductive plate portion which is extending toward one side, taking into alternating score lines toward the width direction from the side end of the hand to the other side edge vicinity of the wide conductive plate portion, a length that form a plurality of score lines along the direction step, lifting the wide conductive-edge portion of the extending portion side of the plate portion above the conductive plate, each piece linked through the score line by bending, a step of standing form a rectangular spiral coil to a position above corresponding to the width of the conductive plate, at the conductive plate portions located at both ends of the rectangular spiral coil
Forming a flat mounting terminal portion by separating the constant region.
程において、前記幅広導電板部の前記延在部側の切込み
線の中間部を１つ置きに押さえた状態で前記延在部側先
端部を導電板上に持ち上げて矩形状に折曲加工すること
を特徴とする請求項１記載のコイル装置の製造方法。2. In the step of forming the rectangular spiral coil in a standing position, the intermediate portion of the cut line on the extending portion side of the wide conductive plate portion is pressed every other, and the extending portion side tip is pressed. The method for manufacturing a coil device according to claim 1, wherein the portion is lifted up on a conductive plate and bent into a rectangular shape.
て、前記切込線によって分離されている隣接片端部に予
め切欠部を形成した請求項１又は２記載のコイル装置の
製造方法。3. The method according to claim 1, wherein the step of forming the plurality of cut lines is performed.
3. The method for manufacturing a coil device according to claim 1 , wherein a notch is formed in one end portion adjacent to each other separated by the cut line .
て、前記隣接片端部間に予めタイバーを設け、前記幅広
導電板部の折曲成形後に各タイバーを切断除去する請求
項１又は２記載のコイル装置の製造方法。 4. The method according to claim 1, wherein the plurality of cut lines are formed.
Te, previously tie bars provided between the adjacent piece end, the wide
3. The method of manufacturing a coil device according to claim 1, wherein each tie bar is cut and removed after bending the conductive plate portion.
剤により仮固定されている請求項１又は２記載のコイル
装置の製造方法。5. The method for manufacturing a coil device according to claim 1, wherein the coil pieces of the spiral coil are temporarily fixed with an adhesive.
工程を含む請求項１又は２記載のコイル装置の製造方
法。6. A method of manufacturing a coil apparatus according to claim 1 or 2, wherein comprising the step of inserting placing cores in said threaded Senko within yl.
６記載のコイル装置の製造方法。7. The method according to claim 6, wherein the magnetic core is a resin containing magnetic powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3140878A JP3032607B2 (en) | 1991-05-15 | 1991-05-15 | Manufacturing method of coil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3140878A JP3032607B2 (en) | 1991-05-15 | 1991-05-15 | Manufacturing method of coil device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04338616A JPH04338616A (en) | 1992-11-25 |
| JP3032607B2 true JP3032607B2 (en) | 2000-04-17 |
Family
ID=15278868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3140878A Expired - Fee Related JP3032607B2 (en) | 1991-05-15 | 1991-05-15 | Manufacturing method of coil device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3032607B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002289444A (en) * | 2001-03-23 | 2002-10-04 | Fdk Corp | High frequency power inductance element |
| JP2007287830A (en) * | 2006-04-14 | 2007-11-01 | Sumida Corporation | Magnetic element |
| JP6439289B6 (en) * | 2014-06-20 | 2019-01-30 | Tdk株式会社 | Winding parts and power supply |
| CN111415797A (en) * | 2020-04-29 | 2020-07-14 | 重庆美桀电子科技有限公司 | Inductance assembly, method for manufacturing inductance assembly and automation equipment |
-
1991
- 1991-05-15 JP JP3140878A patent/JP3032607B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04338616A (en) | 1992-11-25 |
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