JPH0217447Y2 - - Google Patents
Info
- Publication number
- JPH0217447Y2 JPH0217447Y2 JP19295784U JP19295784U JPH0217447Y2 JP H0217447 Y2 JPH0217447 Y2 JP H0217447Y2 JP 19295784 U JP19295784 U JP 19295784U JP 19295784 U JP19295784 U JP 19295784U JP H0217447 Y2 JPH0217447 Y2 JP H0217447Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- conductor
- magnetic
- bobbin
- small inductor
- 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
Links
- 239000004020 conductor Substances 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 239000000843 powder Substances 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、プリント配線基板などに直付けする
ことのできる小型インダクタに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a small inductor that can be directly attached to a printed wiring board or the like.
従来、この種の小型インダクタとしては、第２
図の側断面図に示されるように、インダクタの外
周端面にコイル２の引出線４ａ，４ｂの接続用端
子１ａ，１ｂのついた構造のものがある。このよ
うなインダクタは、必要なインダクタンスを得る
ための磁心としてコイル２をモールドしている磁
性体樹脂３のみに頼つていた。又、高いインダク
タンスを得るためには、第３図の側断面図に示す
ようにコイル２′の中空部にフエライトコア５を
挿入する方法があるが、コイル２′の引出線４′
ａ，４′ｂの接続用端子１′ａ，１′ｂは第２図の
例と同じように別に設けられている。
Conventionally, as this type of small inductor, the second
As shown in the side sectional view of the figure, there is an inductor having a structure in which terminals 1a and 1b for connecting the lead wires 4a and 4b of the coil 2 are attached to the outer peripheral end surface of the inductor. Such an inductor relies only on the magnetic resin 3 in which the coil 2 is molded as a magnetic core to obtain the necessary inductance. In order to obtain high inductance, there is a method of inserting a ferrite core 5 into the hollow part of the coil 2' as shown in the side sectional view of FIG.
The connection terminals 1'a and 1'b of the terminals a and 4'b are separately provided as in the example shown in FIG.
しかしながら、第２図に見られる従来例におい
ては、磁性体樹脂のみでは透磁率が低いために、
大きなインダクタンスを得ることはできない。
又、第３図の従来例では、フエライトコアを用い
て大きなインダクタンスを得ることができるが、
部品点数が増加するばかりでなく、量産に際し
て、コイルの中空部の同じ位置にフエライトコア
を固着させることが難しく、インダクタンスのば
らつきが大きくなるという欠点があつた。 However, in the conventional example shown in Figure 2, magnetic resin alone has low magnetic permeability, so
It is not possible to obtain large inductance.
In addition, in the conventional example shown in Fig. 3, a large inductance can be obtained using a ferrite core, but
Not only does the number of parts increase, but during mass production it is difficult to fix the ferrite core in the same position in the hollow part of the coil, resulting in large variations in inductance.
本考案の目的は、巻線コイルの中空部にまで端
子部分を延長させ、かつその端子材料として磁性
の導電体を用いることにより、従来の磁性体樹脂
でモールドしたのみの場合と比べて、部品点数を
増やすことなく、インダクタンス値を大幅に高め
ることのできる小型インダクタを提供することに
ある。〔問題点を解決するための手段〕
本考案は、ボビンに線の巻かれたコイルを粉末
磁性体樹脂でモールドしてなる小型インダクタに
おいて、磁性体からなる導電体の一部が前記コイ
ルのボビン中空内に挿入され、かつ他の部分が前
記コイルの巻線端末を接続し、外部端子として構
成されたことを特徴とする。
The purpose of this invention is to extend the terminal part into the hollow part of the wire-wound coil, and to use a magnetic conductor as the terminal material. An object of the present invention is to provide a small inductor that can significantly increase the inductance value without increasing the number of points. [Means for Solving the Problems] The present invention provides a small inductor in which a coil having a wire wound around a bobbin is molded with powdered magnetic resin, in which a part of the magnetic conductor is attached to the bobbin of the coil. It is characterized in that it is inserted into the hollow and the other part connects the winding ends of the coil and is configured as an external terminal.
次に、本考案の小型インダクタについて実施例
を挙げ、図面を参照して説明する。
Next, examples of the small inductor of the present invention will be described with reference to the drawings.
第１図は本考案による実施例の構造を側断面図
により示したものである。図において、１１ａ，
１１ｂは導電体を有する磁性体（例えば、パーマ
ロイ）で形成された導電体である。この導電体１
１ａ，１１ｂは、それぞれ断面がＬ形に折曲げら
れており、その一部はコイル１２の中空部に挿入
され、他の部分はコイル１２の引出線１４ａ，１
４ｂに接続されて、外周に面するように配置され
ている。１３はフエライト粉末と樹脂の混合物か
らなるモールド材であり、コイル１２と導電体１
１ａ，１１ｂとが正しい位置関係と好ましい外形
を保つようにモールドされている。このような構
造によれば、導電体１１ａおよび１１ｂによりコ
イル１２と交差する磁路の透磁率が高められて、
高いインダクタンス値（約1.4倍）が得られるば
かりでなく、導電体の露出面を利用してプリント
基板への取付けと接続端子を兼ねることができ
る。 FIG. 1 shows the structure of an embodiment according to the present invention in a side sectional view. In the figure, 11a,
11b is a conductor made of a magnetic material (for example, permalloy) having a conductor. This conductor 1
1a and 11b are each bent into an L-shaped cross section, a part of which is inserted into the hollow part of the coil 12, and the other part is inserted into the lead wire 14a and 1 of the coil 12.
4b, and is arranged so as to face the outer periphery. 13 is a molding material made of a mixture of ferrite powder and resin, and the coil 12 and the conductor 1 are
1a and 11b are molded to maintain the correct positional relationship and preferred external shape. According to such a structure, the magnetic permeability of the magnetic path crossing the coil 12 is increased by the conductors 11a and 11b,
Not only can a high inductance value (approximately 1.4 times) be obtained, but the exposed surface of the conductor can also be used to attach to a printed circuit board and serve as a connection terminal.
以上の説明により明らかなように、本考案によ
れば、巻線コイルの中空部にまで接続端子を兼ね
た磁性の導電体を挿入することにより、インダク
タンスの値が大幅に高められるにもかかわらず、
部品点数を増やさないことによる低工数が維持さ
れる点において、性能および量産性を向上すべく
得られる効果は大きい。
As is clear from the above explanation, according to the present invention, by inserting a magnetic conductor that also serves as a connection terminal into the hollow part of the winding coil, the inductance value can be significantly increased. ,
The effect of improving performance and mass productivity is significant in that the number of man-hours is kept low by not increasing the number of parts.
第１図は本考案による実施例の構造を示す側断
面図、第２図は従来の小型インダクタの構造を示
す側断面図、第３図は従来の小型インダクタの他
の構造例を示す側断面図である。
図において、１１ａ，１１ｂは磁性の導電体、
１２はコイル、１３はモールド材、１４ａ，１４
ｂはコイルの端末線である。
Fig. 1 is a side sectional view showing the structure of an embodiment according to the present invention, Fig. 2 is a side sectional view showing the structure of a conventional small inductor, and Fig. 3 is a side sectional view showing another example of the structure of a conventional small inductor. It is a diagram. In the figure, 11a and 11b are magnetic conductors,
12 is a coil, 13 is a molding material, 14a, 14
b is the terminal wire of the coil.
Claims (1)
でモールドしてなる小型インダクタにおいて、磁
性体からなる導電体の一部が前記コイルのボビン
中空内に挿入され、かつ他の部分が前記コイルの
巻線端末を接続し、外部端子として構成されたこ
とを特徴とする小型インダクタ。 In a small inductor made by molding a coil wound with wire around a bobbin with powdered magnetic resin, a part of the conductor made of magnetic material is inserted into the hollow of the bobbin of the coil, and the other part of the conductor is inserted into the hollow of the bobbin of the coil. A small inductor characterized in that the winding terminals are connected and configured as external terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19295784U JPH0217447Y2 (en) | 1984-12-21 | 1984-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19295784U JPH0217447Y2 (en) | 1984-12-21 | 1984-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61109108U JPS61109108U (en) | 1986-07-10 |
| JPH0217447Y2 true JPH0217447Y2 (en) | 1990-05-16 |
Family
ID=30750372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19295784U Expired JPH0217447Y2 (en) | 1984-12-21 | 1984-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0217447Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4807270B2 (en) * | 2007-01-30 | 2011-11-02 | Ｔｄｋ株式会社 | Coil parts |
| US20100277267A1 (en) * | 2009-05-04 | 2010-11-04 | Robert James Bogert | Magnetic components and methods of manufacturing the same |
| JP2016119385A (en) * | 2014-12-20 | 2016-06-30 | 東光株式会社 | Surface mounting inductor and method of manufacturing the same |
-
1984
- 1984-12-21 JP JP19295784U patent/JPH0217447Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61109108U (en) | 1986-07-10 |
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