JPS5998508A - Inductor - Google Patents
InductorInfo
- Publication number
- JPS5998508A JPS5998508A JP20834782A JP20834782A JPS5998508A JP S5998508 A JPS5998508 A JP S5998508A JP 20834782 A JP20834782 A JP 20834782A JP 20834782 A JP20834782 A JP 20834782A JP S5998508 A JPS5998508 A JP S5998508A
- Authority
- JP
- Japan
- Prior art keywords
- conductive film
- magnetic core
- helical
- spiral
- plating
- 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 abstract description 10
- 238000007747 plating Methods 0.000 abstract description 7
- 238000004804 winding Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 239000003973 paint Substances 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
Abstract
Description
【発明の詳細な説明】 本発明は、インダクタの改良に関するものである。[Detailed description of the invention] The present invention relates to improvements in inductors.
従来のインダクタは、例えば円筒糸巻き状磁気コアに多
層巻線を施して両端に電極を接着し、これにリード線を
半田付けしたものが普通である。Conventional inductors typically include, for example, a cylindrical thread-wound magnetic core with multilayer windings, electrodes bonded to both ends, and lead wires soldered to these.
しかし、このような従来のインダクタは、製造に手数を
要し、ひいてはコストが高くなる欠点がある。However, such conventional inductors have the disadvantage that they require a lot of effort to manufacture, which results in high costs.
本発明は、従来品に比べ製造が簡単でコストが安くなる
インダクタを得ることを目的とするものである。An object of the present invention is to obtain an inductor that is easier to manufacture and lower in cost than conventional products.
本発明によるインダクタは、磁気コアに幾層にも巻回さ
れた巻線の代わりに磁気コアの表面に螺旋（らせん）状
の導電膜が形成されている点が特徴である。以下、図面
により本発明を具体的に説明する。The inductor according to the present invention is characterized in that a spiral conductive film is formed on the surface of the magnetic core instead of a multi-layered winding around the magnetic core. Hereinafter, the present invention will be specifically explained with reference to the drawings.
第１図は、本発明の第１実施例の製造工程の一例を示す
一部断面側面図である。FIG. 1 is a partially sectional side view showing an example of the manufacturing process of the first embodiment of the present invention.
第１図Ａは、フェライトコア等の磁性体より成る円筒状
の磁気コアｔ１）を示す。第１図Ｂは、磁気コア（１）
の表面にメッキ等の方法により金属等の導電膜（２）を
被着したものを示す。第１図Ｃは、この導電膜（２）に
螺旋状の切れ目（３）を入れて螺旋状の導電膜（２）を
形成したものを示す。この螺旋状の切れ目（３）は、抵
抗器製造用のスパイラル・カッタを利用して作ることが
できる。第１図りは、第１図Ｃのものの両端に中日メッ
キ等の厚メッキをして端子又は電極（４）を形成したも
のを示す。第１図Ｅは、螺旋状の導電膜（２）の上に塗
装等の絶縁保膿膜（５！を被着したものを示す。第１図
Ｅに示すものは、チップ・インダクタとして使用するこ
とができる。FIG. 1A shows a cylindrical magnetic core t1) made of a magnetic material such as a ferrite core. Figure 1B shows the magnetic core (1)
A conductive film (2) made of metal or the like is deposited on the surface by a method such as plating. FIG. 1C shows a spiral conductive film (2) formed by making a spiral cut (3) in this conductive film (2). This spiral cut (3) can be made using a spiral cutter for resistor manufacturing. The first diagram shows a terminal or electrode (4) formed by thick plating such as Chunichi plating on both ends of the one in Figure 1C. Fig. 1E shows a spiral conductive film (2) coated with an insulating, purulent film (5!) such as paint.The one shown in Fig. 1E is used as a chip inductor. be able to.
第１図Ｂには磁気コア（１）の表面に直接導電膜（２）
を被着したものを示したが、磁気コア（１）の表面に例
えばメッキ安定剤などの層を介して導電膜（２）を被着
してもよい。したがって、本発明は、磁気コア（１）の
表面に直接に導電膜（２）が被着されたものばかりでな
く、何らかの補助層を介して導電膜（２）が間接に被着
されたものも含むものである。また、第１図Ｃには螺旋
状の導電膜（２）をスパイラ〃・カッティングにより形
成したものを示したが、第１図Ｂのメッキ段階で適当な
手段により一挙に螺旋状の導電膜（２）を形成するよう
にしてもよい。この場合、螺旋状の導電膜（２）或いは
切れ目（３）は完全な螺旋状にしなくてもよく、要は、
電極（４）間に磁気コア（１）を周回する電流路が形状
されればよい。本発明では、これらのものを含めて便宜
上「螺旋状」と呼ぶことにする。なお、図の例では、螺
旋状の導電膜（２）或いは切れ目（３）を導電膜（２）
の電極部分以外のほぼ全面に設けているが、その一部分
に設けてもよい。理論的には、螺旋状の導電膜面は１タ
ーンでもよい。Figure 1B shows a conductive film (2) directly on the surface of the magnetic core (1).
Although a conductive film (2) may be deposited on the surface of the magnetic core (1) via a layer such as a plating stabilizer. Therefore, the present invention is applicable not only to magnetic cores (1) in which the conductive film (2) is directly adhered to the surface but also to those in which the conductive film (2) is indirectly adhered to the surface of the magnetic core (1) through some kind of auxiliary layer. It also includes. In addition, although FIG. 1C shows a spiral conductive film (2) formed by spiral cutting, the spiral conductive film (2) is formed at once by an appropriate means in the plating step of FIG. 1B. 2) may be formed. In this case, the spiral conductive film (2) or the cut (3) does not have to be completely spiral.
It is sufficient that a current path circulating around the magnetic core (1) is formed between the electrodes (4). In the present invention, these shapes will be referred to as "spiral" for convenience. In the example shown in the figure, the spiral conductive film (2) or the cut (3) is replaced by the conductive film (2).
Although it is provided on almost the entire surface other than the electrode portion, it may be provided on a portion thereof. Theoretically, the spiral conductive film surface may have one turn.
第２図は、本発明の第２実施例を示す一部断面側面図で
ある。本例は、第１図りの段階の後その両端にキャップ
（６）とリード線（７）を取り付けてから塗装（５１を
施したものである。また、第１図Ｃの段階の後に直ちに
キャップ（６）とリード線（７）を取付けるようにする
ことも可能である。第２図のものは、リード付き（ディ
スクリート）インダクタとして使用する。本例において
も、巻装に手数のかかる巻線がないので製造が簡単であ
る。FIG. 2 is a partially sectional side view showing a second embodiment of the invention. In this example, after the first drawing step, a cap (6) and a lead wire (7) are attached to both ends, and then painting (51) is applied.Furthermore, the cap (51) is applied immediately after the step of FIG. (6) and a lead wire (7) can be attached.The one in Fig. 2 is used as a leaded (discrete) inductor.In this example, too, the winding wire, which takes time and effort, is used. It is easy to manufacture because there is no
以上説明したとおり、本発明によれば、円筒状磁気コア
を糸巻き状に加工したり巻線をしたりする必要がなく製
造工程が簡略化されると共に、抵抗器製造用のスパイラ
ル・カッタを利用することができ、比較的安価に製造し
うるインダクタを得ることができる。As explained above, according to the present invention, there is no need to process the cylindrical magnetic core into a spool shape or wind it, simplifying the manufacturing process, and utilizing a spiral cutter for resistor manufacturing. Therefore, it is possible to obtain an inductor that can be manufactured at relatively low cost.
第１図は本発明の第１実施例の製造工程の一例を示す一
部断面側面図、第２図は本発明の第２実施例を示す一部
断面側面図である。
（１）・・・円筒状の磁性体、（２′）・・・螺旋状の
導電膜。
−３【FIG. 1 is a partially sectional side view showing an example of the manufacturing process of a first embodiment of the invention, and FIG. 2 is a partially sectional side view showing a second embodiment of the invention. (1)... Cylindrical magnetic material, (2')... Spiral conductive film. -3 [
Claims (1)
端に至る導電路が形成されるように、上記円筒状磁性体
の表面に直接又は間接に螺旋状の導電膜を被着したこと
を特徴とするインダクタ。A spiral conductive film is directly or indirectly coated on the surface of the cylindrical magnetic body so that a conductive path is formed from one end of the cylindrical magnetic body to the other end of the magnetic body. An inductor characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20834782A JPS5998508A (en) | 1982-11-26 | 1982-11-26 | Inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20834782A JPS5998508A (en) | 1982-11-26 | 1982-11-26 | Inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5998508A true JPS5998508A (en) | 1984-06-06 |
Family
ID=16554766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20834782A Pending JPS5998508A (en) | 1982-11-26 | 1982-11-26 | Inductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5998508A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2318218A (en) * | 1996-10-11 | 1998-04-15 | Matsushita Electric Ind Co Ltd | Inductive device |
| US6609009B1 (en) | 1999-04-26 | 2003-08-19 | Matsushita Electric Industrial Co., Ltd. | Electronic component and radio terminal using the same |
-
1982
- 1982-11-26 JP JP20834782A patent/JPS5998508A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2318218A (en) * | 1996-10-11 | 1998-04-15 | Matsushita Electric Ind Co Ltd | Inductive device |
| US5963119A (en) * | 1996-10-11 | 1999-10-05 | Matsushita Electric Industrial Co., Ltd. | Electric component having conductor film formed on insulative base |
| GB2318218B (en) * | 1996-10-11 | 1999-10-13 | Matsushita Electric Ind Co Ltd | Inductance device and wireless terminal equiptment |
| US6609009B1 (en) | 1999-04-26 | 2003-08-19 | Matsushita Electric Industrial Co., Ltd. | Electronic component and radio terminal using the same |
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