JPH0738351B2 - Method for manufacturing magnetically saturable inductor - Google Patents
Method for manufacturing magnetically saturable inductorInfo
- Publication number
- JPH0738351B2 JPH0738351B2 JP6932187A JP6932187A JPH0738351B2 JP H0738351 B2 JPH0738351 B2 JP H0738351B2 JP 6932187 A JP6932187 A JP 6932187A JP 6932187 A JP6932187 A JP 6932187A JP H0738351 B2 JPH0738351 B2 JP H0738351B2
- Authority
- JP
- Japan
- Prior art keywords
- saturable inductor
- magnetically saturable
- permanent magnet
- manufacturing
- 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
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はテレビジョン受像機やビデオカメラなどにおけ
る水平偏向電流の直線性の改善に利用される磁気飽和性
インダクターの製造法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a magnetic saturation inductor used for improving the linearity of a horizontal deflection current in a television receiver, a video camera or the like.
従来の技術 従来この種の磁気飽和性インダクターは、第２図および
第３図に示すように両端に鍔９を有するドラム型コア11
にコイル10を巻回し、このドラム型コア11の鍔９に永久
磁石12を結合した構造になっており、永久磁石12は、あ
る範囲の着磁量バラツキを当初から持っており、これを
接着したものであり、この組合せ後の特性調整は無かっ
た。第４図，第５図は、磁界の一例を示したもので、永
久磁石12の着磁量によって、ドラム型コア11への磁気バ
イアス量が変る。2. Description of the Related Art Conventionally, this type of magnetically saturable inductor has a drum-shaped core 11 having flanges 9 at both ends as shown in FIGS.
It has a structure in which a coil 10 is wound around, and a permanent magnet 12 is coupled to the flange 9 of this drum-shaped core 11. The permanent magnet 12 has a certain amount of variation in the amount of magnetization from the beginning, and this is bonded. The characteristics were not adjusted after this combination. 4 and 5 show an example of a magnetic field, and the amount of magnetic bias applied to the drum core 11 varies depending on the amount of magnetization of the permanent magnet 12.
発明が解決しようとする問題点 上記のように、当初より、あるバラツキ範囲の着磁量を
持った永久磁石12を接着しただけでは、このバラツキの
他に、ドラム型コア11の初透磁率のバラツキ及び接着ズ
レによる永久磁石12のバイアス量のバラツキ等が加算さ
れ、第６図，第７図の電流重畳特性のように磁気飽和性
インダクターの特性バラツキ範囲が大きくなる問題があ
った。Problems to be Solved by the Invention As described above, from the beginning, by only adhering the permanent magnet 12 having a magnetization amount in a certain variation range, in addition to this variation, the initial magnetic permeability of the drum type core 11 There is a problem in that variations in the bias amount of the permanent magnet 12 due to variations and adhesion deviations are added, and the characteristic variation range of the magnetically saturable inductor becomes large like the current superposition characteristics in FIGS. 6 and 7.
本発明は、固定インダクターでありながら、これらのバ
ラツキを補ない、特性バラツキを小さくする磁気飽和性
インダクターの製造法を提供するものである。The present invention provides a manufacturing method of a magnetic saturation inductor which is a fixed inductor but does not compensate for these variations and reduces the characteristic variations.
問題点を解決するための手段 上記問題点を解決するために本発明の磁気飽和性インダ
クターの製造法は、ドラム型コアの鍔部分に永久磁石を
接着し規制巻数を巻き、配線後に着，減磁用コイル装置
の中に入れて、着磁又は減磁又は着，減磁を行う方法に
関するものである。Means for Solving the Problems In order to solve the above problems, in the method for manufacturing a magnetically saturable inductor of the present invention, a permanent magnet is adhered to the flange portion of a drum-shaped core to wind a regulated number of turns, and after the wiring, it is attached and reduced. The present invention relates to a method of performing magnetizing or demagnetizing or magnetizing and demagnetizing by putting the magnet in a magnet coil device.
作用 上述の方法とすることにより、磁気飽和性インダクター
は永久磁石の磁気バイアス量によって特性が変化するた
め、逆に特性を測りながら、永久磁石の着磁量を変え、
規定の特性に合わすもので、製造工程の最後に行うた
め、製造バラツキ及び材料バラツキを含めて補うことが
できる。By the above method, the characteristics of the magnetically saturable inductor change depending on the magnetic bias amount of the permanent magnet. Therefore, while measuring the characteristics, the magnetization amount of the permanent magnet is changed.
Since it conforms to the specified characteristics, since it is performed at the end of the manufacturing process, it is possible to compensate for it including manufacturing variations and material variations.
実施例 本発明の一実施例を第１図に基づいて説明する。Embodiment An embodiment of the present invention will be described with reference to FIG.
第１図は本発明による磁気飽和性インダクターの永久磁
石の着磁量を変え、磁気飽和性インダクター特性を精度
良く出すための製造工程のブロック図である。FIG. 1 is a block diagram of a manufacturing process for changing the magnetization amount of a permanent magnet of a magnetically saturable inductor according to the present invention to obtain magnetically saturable inductor characteristics accurately.
同図において、ドラム型コアにコイルを巻回し、ドラム
型コアの端面に永久磁石となる強磁性体８を結合して構
成的に完成した磁気飽和性インダクター１をインダクタ
ンス測定器６に接続し、着，減磁用コイル装置５の中に
入れる。この着，減磁用コイル装置５は強磁性体８がフ
ル着磁でき、かつ、連続的に使用しても発熱しない線径
の銅線（着，減磁用コイル３）を、中に製品が入る穴を
設けたドラム型の樹脂ボビン２の上に巻いており、着，
減磁用電源４と接続されている。さらに着，減磁用電源
４とインダクタンス測定器６はコンピュータ７と接続さ
れており、事前に磁性体の磁気量を、着，減磁用電源電
圧を細かく変えることにより変えてインダクタンスの変
化を読みとっておく。このインダクタンスと電圧の関係
をコンピュータ７にインプットしておく。まず、着，減
磁用コイル装置５に着，減磁用電源４から電圧を加え、
磁気飽和性インダクター１の強磁性体８をフル着磁、又
は一定量の着磁をして永久磁石とし、その後のインダク
タンス値をインダクタンス測定器６にて測定する。測定
値に合わせて、コンピュータ７にインプットしている
着，減磁用電源電圧値との関係プログラムから規定のイ
ンダクタンス値になる電圧をコンピュータ７が着，減磁
用電源４に指示し、着，減磁用コイル装置５に電圧を加
え、磁気飽和性インダクター１の強磁性体８を着磁又は
減磁する。この結果、規定のインダクタンス値に合わす
ことができる。In the figure, a coil is wound around a drum core, and a magnetically saturable inductor 1 which is structurally completed by coupling a ferromagnetic body 8 serving as a permanent magnet to an end surface of the drum core is connected to an inductance measuring device 6, It is put in the coil device 5 for wearing and demagnetizing. In this coiling / demagnetizing coil device 5, a ferromagnetic material 8 can be fully magnetized, and a copper wire (magnetizing / demagnetizing coil 3) having a wire diameter that does not generate heat even when continuously used is used as a product. It is wound on a drum type resin bobbin 2 with a hole for
It is connected to the power supply 4 for demagnetization. Further, the power supply for demagnetization / demagnetization 4 and the inductance measuring device 6 are connected to the computer 7, and the amount of magnetism of the magnetic material is changed in advance by finely changing the power supply voltage for demagnetization / demagnetization to read the change in the inductance. Keep it. The relationship between the inductance and the voltage is input to the computer 7. First, the coiling / demagnetizing coil device 5 is applied, and a voltage is applied from the demagnetizing power source 4,
The ferromagnetic material 8 of the magnetically saturable inductor 1 is fully magnetized or magnetized by a certain amount to make it a permanent magnet, and the inductance value after that is measured by the inductance measuring device 6. According to the measured value, the computer 7 inputs the voltage which becomes the specified inductance value from the relational program with the power supply voltage value for demagnetization input to the computer 7 and instructs the power supply 4 for demagnetization to A voltage is applied to the demagnetizing coil device 5 to magnetize or demagnetize the ferromagnetic body 8 of the magnetically saturable inductor 1. As a result, the specified inductance value can be met.
発明の効果 以上のように本発明によれば、材料バラツキ及び製造バ
ラツキによる加算された完成品の特性バラツキを小さく
でき、さらには、材料バラツキよりも完成品のバラツキ
を小さくすることさえ可能である。EFFECTS OF THE INVENTION As described above, according to the present invention, it is possible to reduce the characteristic variation of the added finished product due to the material variation and the manufacturing variation, and further it is possible to make the variation of the finished product smaller than the material variation. .
第１図は本発明の一実施例による磁気飽和性インダクタ
ーの製造法の一実施例における規定の特性を出すための
着，減磁のシステムブロック図、第２図，第３図の従来
の磁気飽和性インダクターの断面図、第４図，第５図は
磁界の流れの一例を示した図、第６図は永久磁石の着磁
量の違いによる磁気飽和性インダクターの電流重畳特性
の変化を示した特性図、第７図は従来の磁気飽和性イン
ダクターの電流重畳特性バラツキを示す特性図である。 １……磁気飽和性インダクター、２……ボビン、３……
着，減磁用コイル、４……着，減磁用電源、５……着，
減磁用コイル装置、６……インダクタンス測定器、７…
…コンピュータ、８……強磁性体。FIG. 1 is a block diagram of a system of wear and demagnetization for obtaining specified characteristics in an embodiment of a method of manufacturing a magnetically saturable inductor according to an embodiment of the present invention, and the conventional magnetism shown in FIGS. 2 and 3. Cross-sectional views of the saturable inductor, FIGS. 4 and 5 show examples of magnetic field flow, and FIG. 6 shows changes in the current superposition characteristics of the magnetic saturable inductor due to the difference in the magnetization amount of the permanent magnet. FIG. 7 is a characteristic diagram showing variations in the current superposition characteristic of the conventional magnetic saturation inductor. 1 ... Magnetic saturation inductor, 2 ... Bobbin, 3 ...
Wear, demagnetization coil, 4 ... wear, power supply for demagnetization, 5 ... wear,
Demagnetizing coil device, 6 ... Inductance measuring device, 7 ...
… Computer, 8… Ferromagnetic material.
Claims (1)
ラム型コアの鍔に接着した、磁気を与えることにより永
久磁石になりうる強磁性体からなり、コイルを巻き配線
し、強磁性体を接着した後に着磁及び減磁を行い磁性体
の磁気量を変え、磁気バイアス量を変えることにより直
流重畳特性のインダクタンスを調整する磁気飽和性イン
ダクターの製造法。1. A ferromagnetic body comprising a drum-shaped core around which a coil is wound, and a ferromagnetic material which is bonded to the flange of the drum-shaped core and can become a permanent magnet by applying magnetism. A method for manufacturing a magnetically saturable inductor in which the inductance of the DC superposition characteristic is adjusted by changing the magnetic amount of the magnetic substance by changing the magnetic amount of the magnetic substance after the adhesion of the magnet and demagnetizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6932187A JPH0738351B2 (en) | 1987-03-24 | 1987-03-24 | Method for manufacturing magnetically saturable inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6932187A JPH0738351B2 (en) | 1987-03-24 | 1987-03-24 | Method for manufacturing magnetically saturable inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63234506A JPS63234506A (en) | 1988-09-29 |
| JPH0738351B2 true JPH0738351B2 (en) | 1995-04-26 |
Family
ID=13399171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6932187A Expired - Lifetime JPH0738351B2 (en) | 1987-03-24 | 1987-03-24 | Method for manufacturing magnetically saturable inductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0738351B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2884742B2 (en) * | 1990-08-23 | 1999-04-19 | タカタ株式会社 | Method of manufacturing acceleration sensor |
-
1987
- 1987-03-24 JP JP6932187A patent/JPH0738351B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63234506A (en) | 1988-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |