JPS6118111A - High frequency coil - Google Patents
High frequency coilInfo
- Publication number
- JPS6118111A JPS6118111A JP13840684A JP13840684A JPS6118111A JP S6118111 A JPS6118111 A JP S6118111A JP 13840684 A JP13840684 A JP 13840684A JP 13840684 A JP13840684 A JP 13840684A JP S6118111 A JPS6118111 A JP S6118111A
- Authority
- JP
- Japan
- Prior art keywords
- core
- drum
- coil
- pot
- pot core
- 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
- 229920003023 plastic Polymers 0.000 claims abstract description 7
- 239000004033 plastic Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
-
- 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
- H01F17/043—Fixed inductances of the signal type with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、各種電子機器に使用され、ドラムコアとポッ
トコアに改良を加えインダクタンスの微調整ができるよ
うにした高周波コイルに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a high frequency coil that is used in various electronic devices and has improved drum cores and pot cores to enable fine adjustment of inductance.
従来例の構成とその問題点
従来の高周波コイルとしては、第1図に示すように構成
されていた。Conventional configuration and its problems A conventional high frequency coil was configured as shown in FIG.
第1図に示すものは、端子2を複数本植設したドラムコ
ア1にコイル3を巻回し、ポットコア5の内面上部にス
ペーサ4を挿入し接着剤6によって結合し構成していた
。In the device shown in FIG. 1, a coil 3 is wound around a drum core 1 in which a plurality of terminals 2 are implanted, a spacer 4 is inserted into the upper part of the inner surface of a pot core 5, and the coil 3 is bonded with an adhesive 6.
このような構成によるものでは、スペーサ4の厚みにば
らつきがあると、ポットコア5とドラムコア1の相対的
位置関係が変シインダクタンスのばらつきとなって現わ
れる。また、ポットコア6とドラムコア1の接着時にお
ける全周に渡るギャップの均一性も得られず、部分的に
振触したシすることによるインダクタンスばらつきも発
生することになシ、高周波コイルの特性としても不安定
になると同時に、接着剤塗布に伴なう工数の増加もあり
コストアップの要素となる欠点があった。With such a configuration, if there is variation in the thickness of the spacer 4, the relative positional relationship between the pot core 5 and the drum core 1 will appear as variation in the variable shear inductance. Furthermore, when bonding the pot core 6 and drum core 1, it is not possible to obtain uniformity of the gap over the entire circumference, and variations in inductance due to partial shaking occur. In addition to becoming unstable, there was also an increase in the number of man-hours associated with applying the adhesive, which resulted in an increase in costs.
発明の目的
本発明はこのような従来の欠点を除去するもので、イン
ダクタンスのばらつきを少なくできる高周波コイルを提
供することを目的とするものであるO
発明の構成
この目的を達成するために本発明は、ドラムコアの鍔に
ネジ部を設け、さらにポットコアの内面に突起のあるプ
ラスチックリングを設けたものを螺合させた構成とした
ものである。OBJECT OF THE INVENTION The present invention eliminates such conventional drawbacks, and aims to provide a high-frequency coil that can reduce variations in inductance. This has a structure in which a threaded portion is provided on the flange of the drum core, and a plastic ring with protrusions is provided on the inner surface of the pot core, which are screwed together.
この構成によってポットコアを回転させ所定のインダク
タンスが得られることになる。With this configuration, the pot core can be rotated to obtain a predetermined inductance.
実施例の説明
以下、本発明の一実施例を図面第2図〜第4図によシ説
明する。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 to 4 of the drawings.
端子7を植立させたドラムコア8の下端鍔8aには、ネ
ジ部9が設けられている。このネジ部9の一部にはコイ
ルリードを端子7に配線させるために切欠き部が設けら
れている。A threaded portion 9 is provided at the lower end flange 8a of the drum core 8 on which the terminal 7 is planted. A notch is provided in a part of the screw portion 9 for wiring the coil lead to the terminal 7.
このようなドラムコア8に数本の突条1oを設けたプラ
スチック製リング11を内蔵したポットコア12が螺合
される。A pot core 12 having a built-in plastic ring 11 provided with several protrusions 1o is screwed into such a drum core 8.
このドラムコア8に銅線を巻回したコイル13を巻回し
、コイルリードを端子7に配線したものに、ポットコア
12を螺合させ1、このポットコア12を回転させるこ
とによシインダクタンスは変化する。A coil 13 made of copper wire is wound around the drum core 8, and a coil lead is wired to the terminal 7. A pot core 12 is screwed to the drum core 8, and the inductance is changed by rotating the pot core 12.
さらに、このようなプラスチック製リング11によシ、
ドラムコア8とポットコア12が接触することもない。Furthermore, in such a plastic ring 11,
The drum core 8 and pot core 12 do not come into contact with each other.
発明の効果
以上のように本発明の高周波コイルによれば、ポットコ
アの可動により高精度なインダクタンスを得ることがで
き、かつ接着しないことにより、他のストレスが加わる
ことがなくなる効果が得られ工業的価値の大なるもので
ある。Effects of the Invention As described above, according to the high-frequency coil of the present invention, highly accurate inductance can be obtained by moving the pot core, and since there is no adhesion, no other stress is applied. It is of great value.
第1図は従来の高周波コイルを示す断面図、第2図は本
発明のドラムコアの正面図、第3図A。
Bは、本発明のポットコアの半断面正面図と下面図、第
4図は同高周波コイルの半断面正面図である0
7・・・・・・端子、8・・・・・・ドラムコア、8a
・・・・・・下端鍔、9・・・・・・ネジ部、10・・
・・・・突条、11・・・・・・プラスチック製リング
、12・・・・・・ポットコア、13・・・・・・コイ
ル。
代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図
第3図
A B
第4図
1θFIG. 1 is a sectional view showing a conventional high-frequency coil, FIG. 2 is a front view of the drum core of the present invention, and FIG. 3A. B is a half-sectional front view and a bottom view of the pot core of the present invention, and FIG. 4 is a half-sectional front view of the same high-frequency coil.0 7... terminal, 8... drum core, 8a
...Lower end flange, 9...Threaded part, 10...
... Protrusion, 11 ... Plastic ring, 12 ... Pot core, 13 ... Coil. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 A B Figure 4 1θ
Claims (1)
設け、ポットコアの内面に、弾性のある突起を設けたプ
ラスチック製リングを構成したものを組み込み、このポ
ットコアを被せてプラスチック製リングの突起をドラム
コアのネジ部に螺合させてなる高周波コイル。A threaded part is provided on the flange of the drum core that has a terminal around which the coil is wound, and a plastic ring with elastic protrusions is incorporated into the inner surface of the pot core.The pot core is placed over the drum core, and the protrusions of the plastic ring are attached to the drum core. A high-frequency coil that is screwed onto the threaded part of.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13840684A JPS6118111A (en) | 1984-07-04 | 1984-07-04 | High frequency coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13840684A JPS6118111A (en) | 1984-07-04 | 1984-07-04 | High frequency coil |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6118111A true JPS6118111A (en) | 1986-01-27 |
Family
ID=15221211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13840684A Pending JPS6118111A (en) | 1984-07-04 | 1984-07-04 | High frequency coil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6118111A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0538824U (en) * | 1991-10-21 | 1993-05-25 | 太陽誘電株式会社 | Inductance element |
-
1984
- 1984-07-04 JP JP13840684A patent/JPS6118111A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0538824U (en) * | 1991-10-21 | 1993-05-25 | 太陽誘電株式会社 | Inductance element |
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