JPS63202012A - Manufacture of e-type core with gap - Google Patents
Manufacture of e-type core with gapInfo
- Publication number
- JPS63202012A JPS63202012A JP3414887A JP3414887A JPS63202012A JP S63202012 A JPS63202012 A JP S63202012A JP 3414887 A JP3414887 A JP 3414887A JP 3414887 A JP3414887 A JP 3414887A JP S63202012 A JPS63202012 A JP S63202012A
- Authority
- JP
- Japan
- Prior art keywords
- gap
- core
- type core
- type
- shape
- 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 title claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000005498 polishing Methods 0.000 abstract description 6
- 238000010304 firing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 239000011800 void material Substances 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 1
Landscapes
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電源トランス又はチョークコイルなどに使用
されるギャップ付Ｅ型コアの製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing an E-shaped core with a gap used in a power transformer, a choke coil, or the like.
（従来の技術）
従来のギャップ付Ｅ型コアの製造方法の一例を第４図を
用いて説明する。従来の製造方法は、まずＥ副コアを２
個突き合わせた形状にフェライトコア４０１を成形し、
焼成後前記フェライトコア４０１を中央部４０２で切断
してＥ型コア４０３を得る０次に、Ｅ型コア４０３の３
つの脚部の突き合わせ面４０４を研磨し、その後Ｅ副コ
ア４０３の中央脚４０５の突き合わせ面４０６を研磨し
。(Prior Art) An example of a conventional method for manufacturing an E-shaped core with a gap will be described with reference to FIG. The conventional manufacturing method is to first make two E sub-cores.
The ferrite core 401 is formed into a shape in which the pieces are butted together,
After firing, the ferrite core 401 is cut at the center portion 402 to obtain an E-type core 403. Next, three parts of the E-type core 403 are cut.
The abutting surfaces 404 of the two legs are polished, and then the abutting surfaces 406 of the central leg 405 of the E sub-core 403 are polished.
ギャップ付Ｅ型コアを得ていた。An E-type core with a gap was obtained.
（発明が解決しようとする問題点）
従来の方法では、ギャップ付Ｅ型コアを得るためには、
Ｅ副コアの中心脚を研削して、外側脚の高さより低くし
、ギャップを形成させていたが、この中心脚のみ研磨す
る技術は、通常の研磨工程にもまして非常に高度な技術
を必要とし、歩留りの低下を招き、高コストの原因とな
っていた。(Problems to be solved by the invention) In the conventional method, in order to obtain an E-shaped core with a gap,
The center leg of the E sub-core was ground to make it lower than the height of the outer leg to form a gap, but the technique of polishing only the center leg requires a much more advanced technique than the normal polishing process. This led to a decrease in yield and caused high costs.
また、従来の方法では、研磨工程が２度必要であるとい
う欠点もあった。Furthermore, the conventional method also has the disadvantage of requiring two polishing steps.
本発明は、上記の欠点を解決する新規なギャップ付Ｅ型
コアの製造方法を提供することを目的とするものである
。An object of the present invention is to provide a novel method for manufacturing a gapped E-shaped core that solves the above-mentioned drawbacks.
（問題点を解決するための手段）
本発明は、Ｅ副コアとＥ副コア又はＥ副コアと１型コア
を突き合わせた形状であって、Ｅ型コアの中心脚に相当
する部分に所定の空隙が形成された形状のフェライトコ
アを成形し、焼成後前記空隙部分又はその近傍で前記コ
アを切断し、ギャップ付Ｅ型コアを得るものである。(Means for Solving the Problems) The present invention has a shape in which an E sub-core and an E sub-core or an E sub-core and a type 1 core are butted against each other, and a predetermined portion is attached to a portion corresponding to the central leg of the E-type core. A ferrite core having a shape in which a gap is formed is molded, and after firing, the core is cut at or near the gap to obtain an E-shaped core with a gap.
（実施例）
本発明に係る一実施例を第１図を用いて説明する。この
実施例は、２個のＥ型コアを突き合わせた形状であって
、中心脚に相当する部分の中央部に空隙１０２が形成さ
れた形状にフェライトコア１０１を形成し、焼成後前記
コア１０１を前記空隙１０２のほぼ中央部１０３で切断
し、ギャップ付Ｅ型コア１０４を２個得たものである。(Example) An example according to the present invention will be described with reference to FIG. In this embodiment, a ferrite core 101 is formed in the shape of two E-shaped cores butted against each other, with a gap 102 formed in the center of the part corresponding to the center leg, and after firing, the core 101 is Two gapped E-shaped cores 104 were obtained by cutting at approximately the center 103 of the void 102.
必要に応じて、Ｅ型コア１０４の外側脚の突き合わせ面
１０５を研磨しても良い。If necessary, the abutting surfaces 105 of the outer legs of the E-shaped core 104 may be polished.
また、本発明に係る第２実施例を第２図を用いて説明す
る。この実施例は、２個のＥ型コアを突き合わせた形状
であって、中心脚に相当する部分のほぼ中央部に空隙２
０２が形成された形状にフェライトコア２０１を形成し
、焼成後前記コア２０１を前記空隙１０２の一端部付近
２０３で切断し、ギャップ付Ｅ型コア２０４とギャップ
無しＥ型コア２０５とを得た。そして、ギャップ付Ｅ型
コア２０４の外側脚の突き合わせ面２０６及びギャップ
無しＥ型コア２０５の３つの脚部の突き合わせ面２０７
を研磨して、ギャップ付Ｅ型コア２０４とギャップ無し
Ｅ型コア２０５を得た。Further, a second embodiment according to the present invention will be explained using FIG. 2. This embodiment has a shape in which two E-shaped cores are butted against each other, and there is a gap 2 at approximately the center of the part corresponding to the center leg.
A ferrite core 201 was formed in the shape in which 02 was formed, and after firing, the core 201 was cut near one end 203 of the gap 102 to obtain an E-type core 204 with a gap and an E-type core 205 without a gap. The abutting surfaces 206 of the outer legs of the E-shaped core 204 with a gap and the abutting surfaces 207 of the three legs of the E-shaped core 205 without gaps.
was polished to obtain an E-type core 204 with a gap and an E-type core 205 without a gap.
また、本発明に係る第３実施例を第３図を用いて説明す
る。この実施例は、Ｅ型コアとエヤコアとを突き合わせ
た形状であって、Ｅ型コアの中心脚に相当する部分とエ
ヤコアに相当する部分との間に空隙３０２が形成された
形状にフェライトコア３０１を成形し、焼成後前記コア
３０１のＥ型コアと１型コアとの突き合わせ部分に相当
する部分３０３で前記コア３０１を切断し、ギャップ付
Ｅ型コア３０４と■型コア３０５を得た。そして、ギャ
ップ付Ｅ型コア３０４の外側脚の突き合わせ面及びエヤ
コア３０５の突き合わせ面を研磨して。Further, a third embodiment according to the present invention will be explained using FIG. 3. In this embodiment, a ferrite core 301 has a shape in which an E-type core and an air core are butted against each other, and a gap 302 is formed between a portion corresponding to the central leg of the E-type core and a portion corresponding to the air core. After firing, the core 301 was cut at a portion 303 corresponding to the abutting portion between the E-type core and the 1-type core to obtain an E-type core 304 with a gap and a ■-type core 305. Then, the abutting surfaces of the outer legs of the gapped E-shaped core 304 and the abutting surfaces of the air core 305 are polished.
ギャップ付Ｅ型コアとエヤコアとを得た。An E-type core with a gap and an air core were obtained.
本発明により、ギャップ付Ｅ型コアを中心脚のみを研磨
するという特殊な技術を用いることなく得ることができ
る。また、ギャップの寸法調整は、外側脚の突き合わせ
面の研磨量によって容易に調整できる。According to the present invention, an E-shaped core with a gap can be obtained without using a special technique of polishing only the center leg. Further, the size of the gap can be easily adjusted by adjusting the amount of polishing of the abutting surfaces of the outer legs.
（発明の効果）
本発明により、ギャップ付Ｅ型コアを簡便な工程により
製造することができ、歩留り向上及びコスト低減が達成
できるものであり、産業上有益なものである。(Effects of the Invention) According to the present invention, an E-type core with a gap can be manufactured through a simple process, and yield improvement and cost reduction can be achieved, which is industrially useful.
第１図は、本発明に係る一実施例の説明図であり、第２
図は、本発明に係る第２実施例の説明図であり、第３図
は、本発明に係る第３実施例の説明図であり、第４図は
、従来例の説明図である。
１０１．２０１，３０１・・・フェライトコア、１０２
．２０２，３０２−・・空隙、１０３，２０３゜３０３
−・・切断面一 １０４，２０４，３０４・・・ギャッ
プ付Ｅ型コア。
第１図
第２図FIG. 1 is an explanatory diagram of one embodiment according to the present invention, and FIG.
FIG. 3 is an explanatory diagram of a second embodiment according to the present invention, FIG. 3 is an explanatory diagram of a third embodiment according to the present invention, and FIG. 4 is an explanatory diagram of a conventional example. 101.201,301... Ferrite core, 102
．． 202,302--Void, 103,203°303
-... Cut surface 104, 204, 304... E-type core with gap. Figure 1 Figure 2
Claims (1)
わせた形状であって、Ｅ型コアの中心脚に相当する部分
に所定の空隙が形成された形状のフェライトコアを形成
し、焼成後前記空隙部分又はその近傍で前記コアを切断
し、ギャップ付Ｅ型コアを得ることを特徴とするギャッ
プ付Ｅ型コアの製造方法。A ferrite core having a shape in which an E-type core and an E-type core or an E-type core and an I-type core are butted together, with a predetermined gap formed in a portion corresponding to the central leg of the E-type core is formed and fired. A method for manufacturing an E-type core with a gap, the method comprising: cutting the core at or near the gap to obtain an E-type core with a gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3414887A JPS63202012A (en) | 1987-02-17 | 1987-02-17 | Manufacture of e-type core with gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3414887A JPS63202012A (en) | 1987-02-17 | 1987-02-17 | Manufacture of e-type core with gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63202012A true JPS63202012A (en) | 1988-08-22 |
Family
ID=12406114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3414887A Pending JPS63202012A (en) | 1987-02-17 | 1987-02-17 | Manufacture of e-type core with gap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63202012A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08250340A (en) * | 1994-12-16 | 1996-09-27 | Hitachi Metals Ltd | Ferrite core and manufacture thereof |
-
1987
- 1987-02-17 JP JP3414887A patent/JPS63202012A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08250340A (en) * | 1994-12-16 | 1996-09-27 | Hitachi Metals Ltd | Ferrite core and manufacture thereof |
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