JPH0519931Y2 - - Google Patents
Info
- Publication number
- JPH0519931Y2 JPH0519931Y2 JP10170789U JP10170789U JPH0519931Y2 JP H0519931 Y2 JPH0519931 Y2 JP H0519931Y2 JP 10170789 U JP10170789 U JP 10170789U JP 10170789 U JP10170789 U JP 10170789U JP H0519931 Y2 JPH0519931 Y2 JP H0519931Y2
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- metal piece
- coil
- flanges
- magnetic
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 15
- 229920003002 synthetic resin Polymers 0.000 claims description 8
- 239000000057 synthetic resin Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は主に遅延線やフイルタを構成する場合
に用いられ、コイルが複数区間に分けて巻回され
る多連インダクタ用ボビンに関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a bobbin for a multiple inductor, which is mainly used when constructing a delay line or a filter, and in which a coil is wound in a plurality of sections.
この種の多連インダクタ用ボビンは、巻回され
る夫々のコイルのインダクタンスと、そのコイル
間の電磁気的な結合を正確に設定できることが重
要である。
For this type of multiple inductor bobbin, it is important to be able to accurately set the inductance of each coil wound and the electromagnetic coupling between the coils.
通常焼結フエライトや合成樹脂で形成される
が、小型化の著しく進む現状では角形の鍔であれ
ばその１辺は４mm以下、鍔間の巻溝の幅が３mm以
下にもなるので、フエライトを用いて鍔と巻溝の
連続する細長い１軸形状のこのようなボビンを、
歩留まり良く成型することは難しく、鍔等が部分
的に欠ける事故が生じやすい。また、コイル間の
結合が大きくなり結合の調節が難しい。 It is usually made of sintered ferrite or synthetic resin, but in the current state of rapid miniaturization, a rectangular brim has a side of 4 mm or less, and the width of the winding groove between the brim is 3 mm or less, so ferrite is used. Using this type of bobbin, which has an elongated uniaxial shape with a continuous flange and winding groove,
It is difficult to mold with a good yield, and accidents such as parts of the collar are easily chipped. In addition, the coupling between the coils becomes large, making it difficult to adjust the coupling.
合成樹脂の場合には、成型が容易である反面、
コイルのインダクタンスを大きくすることができ
ない。 In the case of synthetic resin, it is easy to mold, but on the other hand,
It is not possible to increase the inductance of the coil.
本考案の課題は、合成樹脂で形成することによ
り多連インダクタ用ボビンの成型を容易にするこ
とにある。
An object of the present invention is to facilitate the molding of a bobbin for a multiple inductor by forming it from a synthetic resin.
同時に、ボビン内部に複数の巻溝間に延在する
磁性体を配置してコイルのインダクタンスを大き
くすると共に、巻溝を区切る鍔の厚みを変えるこ
とにより夫々の巻溝に巻回されるコイル間の結合
を正確に設定できる多連インダクタ用ボビンを提
供することにある。 At the same time, by arranging a magnetic material extending between multiple winding grooves inside the bobbin to increase the inductance of the coil, and by changing the thickness of the collar that separates the winding grooves, the distance between the coils wound in each winding groove is increased. An object of the present invention is to provide a bobbin for multiple inductors that allows accurate setting of connections.
本考案の多連インダクタ用ボビンは、３個以上
の鍔とその鍔によつて区切られたコイルの巻溝を
合成樹脂で形成してあり、その内部には鍔の部分
で外部に露呈して電極又はコイルの接続部の役割
をする金属片と、該金属片で支持された状態で複
数の巻溝に延在する磁性体を埋設してあることを
特徴とする。
The bobbin for a multiple inductor of the present invention has three or more flanges and a coil winding groove separated by the flanges made of synthetic resin, and the inside is exposed to the outside at the flanges. It is characterized by having a metal piece that serves as a connection part for an electrode or a coil, and a magnetic body that is supported by the metal piece and is embedded in a plurality of winding grooves.
以下、本考案の多連インダクタ用ボビンの実施
例を示す第１図の正面図、第２図の平面図、第３
図の内部斜視図を参照しながら説明する。
Hereinafter, the front view of FIG. 1, the plan view of FIG. 2, and the FIG.
This will be explained with reference to the internal perspective view of the figure.
第１図乃至第３図において、１は鍔、２は巻
溝、３は非磁性体の金属片、４は細長い直方体の
フエライトからなる磁性体である。 1 to 3, 1 is a collar, 2 is a winding groove, 3 is a non-magnetic metal piece, and 4 is a magnetic body made of elongated rectangular parallelepiped ferrite.
鍔１と巻溝２は合成樹脂から形成されるが、金
属片３と磁性体４はその合成樹脂内部に点線で表
すように埋設されている。金属片３は鍔１の対向
する両側面から外部に露呈しており、面接続用の
電極５とコイルの接続部６を形成してある。金属
片３は第３図に示すようにＵ形に屈曲してあり、
磁性体４はこのＵ形部分７で支持された状態でボ
ビンのほぼ中心で長さ方向の全体に延在して埋設
されている。 The collar 1 and the winding groove 2 are made of synthetic resin, and the metal piece 3 and magnetic material 4 are embedded inside the synthetic resin as shown by dotted lines. The metal piece 3 is exposed to the outside from both opposing sides of the collar 1, and forms a connection part 6 between the electrode 5 for surface connection and the coil. The metal piece 3 is bent into a U shape as shown in FIG.
The magnetic body 4 is supported by the U-shaped portion 7 and is buried approximately at the center of the bobbin so as to extend over the entire length thereof.
このような多連インダクタ用ボビンは、第４図
の説明図に示すようなリードフレームの状態の金
属片３のＵ形部分７に磁性体４を嵌めこんだ状態
で周囲に樹脂を注入してボビンを成型した後、金
属片３をリードフレームから切断分離し加工して
電極５や接続部６を形成するとよい。 Such a bobbin for a multiple inductor is made by fitting a magnetic material 4 into the U-shaped portion 7 of a metal piece 3 in the form of a lead frame, as shown in the explanatory diagram of FIG. 4, and injecting resin around the U-shaped portion 7. After molding the bobbin, it is preferable to cut and separate the metal piece 3 from the lead frame and process it to form the electrode 5 and the connection part 6.
このような多連インダクタ用ボビンは、磁性体
が樹脂注入時にその圧力で移動することはなく内
部の位置を正確に決めることができる。位置が正
確に決まるので、設計時における磁性体の透磁率
と寸法によりコイルのインダクタンス、鍔の厚み
によりコイル間の結合を夫々正確に設定できる。 In such a bobbin for a multiple inductor, the magnetic body does not move due to the pressure when resin is injected, and the internal position can be determined accurately. Since the position is accurately determined, the coupling between the coils can be set accurately depending on the inductance of the coil and the thickness of the collar, depending on the magnetic permeability and dimensions of the magnetic body at the time of design.
第５図は本考案の多連インダクタ用ボビンの他
の実施例を示す平面図であるが、２本の磁性体８
を埋設してある。磁性体８間の鍔９は磁気抵抗が
大きくなり、その鍔９を挟む両側の巻溝１０のコ
イル間の結合は磁性体８が鍔にある場合に比較し
て小さくなる。 FIG. 5 is a plan view showing another embodiment of the bobbin for multiple inductors of the present invention, in which two magnetic bodies 8
is buried there. The magnetic resistance of the flange 9 between the magnetic bodies 8 is increased, and the coupling between the coils in the winding grooves 10 on both sides of the flange 9 is smaller than when the magnetic body 8 is located at the flange.
このように埋設する磁性体の数は、結合の程度
により２個以上にしてもよい。 The number of magnetic bodies buried in this manner may be two or more depending on the degree of coupling.
なお、実施例では金属片３のＵ形部分７で磁性
体４を支持してあるが、平坦部分に接着剤で固定
して支持することもできる。 In the embodiment, the magnetic body 4 is supported by the U-shaped portion 7 of the metal piece 3, but it can also be supported by being fixed to a flat portion with an adhesive.
また金属片３は、鍔１や鍔９から露呈していれ
ばよく、接続部又は接続部を兼ねた電極だけを形
成する場合もある。さらに電極は面接続用ばかり
でなく、回路基板に挿入できるようにピン状にす
ることもできる。 Further, the metal piece 3 only needs to be exposed from the collar 1 or the collar 9, and may form only a connecting portion or an electrode that also serves as a connecting portion. Furthermore, the electrodes are not only for surface connection, but can also be pin-shaped so that they can be inserted into a circuit board.
以上述べたように本考案の多連インダクタ用ボ
ビンは、全体を合成樹脂で形成することにより成
型が容易になり歩留まりを向上させることができ
る。
As described above, the bobbin for a multiple inductor of the present invention is made entirely of synthetic resin, which facilitates molding and improves yield.
そして、コイルの巻回される複数の巻溝に延在
する磁性体を電極又はコイルの接続部の役割をす
る金属片で支持した状態でボビン内に配置するこ
とにより、その位置を正確に決めることができ
る。従つて、巻溝のコイルのインダクタンスは磁
性体の透磁率と寸法、結合は鍔の厚みにより夫々
正確に設定することができる。磁性体の支持は、
特別に支持体を埋設することなく、電極又はコイ
ルの接続部の役割をする金属片で兼用できるので
便利である。 Then, by placing the magnetic material extending into the plurality of winding grooves around which the coil is wound, supported by a metal piece that serves as an electrode or a connection part of the coil, in the bobbin, its position is determined accurately. be able to. Therefore, the inductance of the coil in the winding groove can be set accurately depending on the magnetic permeability and dimensions of the magnetic body, and the coupling can be set accurately depending on the thickness of the collar. The support of the magnetic material is
It is convenient because a metal piece can also serve as the electrode or coil connection without embedding a special support.
本考案の多連インダクタ用ボビンは、このよう
にしてコイルのインダクタンスやコイル間の結合
を正確に設定でき、しかも歩留りを向上できる大
きな利点がある。 The bobbin for multiple inductors of the present invention has the great advantage that the inductance of the coils and the coupling between the coils can be set accurately in this way, and the yield can be improved.
第１図は本考案の多連インダクタ用ボビンの実
施例を示す正面図、第２図は平面図、第３図は内
部の斜視図、第４図は成型時の説明図、第５図は
他の実施例を示す平面図である。
１……鍔、２……巻溝、３……金属片、４……
磁性体。
Fig. 1 is a front view showing an embodiment of the bobbin for multiple inductors of the present invention, Fig. 2 is a plan view, Fig. 3 is an internal perspective view, Fig. 4 is an explanatory view during molding, and Fig. 5 is FIG. 7 is a plan view showing another embodiment. 1... Tsuba, 2... Winding groove, 3... Metal piece, 4...
magnetic material.
Claims (1)
ルの巻溝を合成樹脂で形成してあり、その内部に
は鍔の部分で外部に露呈して電極又はコイルの接
続部の役割をする金属片と、該金属片で支持され
た状態で複数の巻溝に延在する磁性体を埋設して
あることを特徴とする多連インダクタ用ボビン。 Three or more flanges and the coil winding grooves separated by the flanges are made of synthetic resin, and the inside of the flanges is exposed to the outside at the flanges and serves as an electrode or a connection part for the coil. A bobbin for a multiple inductor, comprising a metal piece and a magnetic body embedded therein that extends in a plurality of winding grooves while being supported by the metal piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10170789U JPH0519931Y2 (en) | 1989-08-30 | 1989-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10170789U JPH0519931Y2 (en) | 1989-08-30 | 1989-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0339808U JPH0339808U (en) | 1991-04-17 |
| JPH0519931Y2 true JPH0519931Y2 (en) | 1993-05-25 |
Family
ID=31650643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10170789U Expired - Lifetime JPH0519931Y2 (en) | 1989-08-30 | 1989-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0519931Y2 (en) |
-
1989
- 1989-08-30 JP JP10170789U patent/JPH0519931Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0339808U (en) | 1991-04-17 |
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