JPS6355854B2 - - Google Patents
Info
- Publication number
- JPS6355854B2 JPS6355854B2 JP57123392A JP12339282A JPS6355854B2 JP S6355854 B2 JPS6355854 B2 JP S6355854B2 JP 57123392 A JP57123392 A JP 57123392A JP 12339282 A JP12339282 A JP 12339282A JP S6355854 B2 JPS6355854 B2 JP S6355854B2
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- view
- molded body
- abdomen
- ferrite 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.)
- Expired
Links
- 229910000859 α-Fe Inorganic materials 0.000 claims description 8
- 210000001015 abdomen Anatomy 0.000 description 7
- 238000010304 firing Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/255—Magnetic cores made from particles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Coils Or Transformers For Communication (AREA)
Description
【発明の詳細な説明】
Ｅ−Ｉコアは、電源用チヨークトランス、ピン
クシヨツト等に広く用いられている。材質は、
Mn−Zn系が普通である。DETAILED DESCRIPTION OF THE INVENTION E-I cores are widely used in power supply choke transformers, pink shots, and the like. The material is
Mn-Zn system is common.
従来のＥ形フエライトコアの焼成体において
は、腹部の底部外周面が丸みを帯び、例えば、フ
エライト焼成体の脚部端面研磨を行なう場合に、
平行度が出にくいとか、端面に段差が出来てしま
うとかの問題点があつた。 In the conventional fired body of E-type ferrite core, the bottom outer peripheral surface of the abdomen is rounded, for example, when polishing the end face of the leg of the fired ferrite body,
There were problems such as difficulty in achieving parallelism and the formation of a step on the end face.
第１図に従来のＥ形フエライト成形体の正面
図、第２図に同成形体を焼成した後得た焼成体の
正面図を示す。第１図において、コア成形体の腹
部１１の中央部分厚さt1は、端部厚さｔと同一に
してある。このために焼成後においては、第２図
に示す様に、焼成体２の腹部２１の底部外周面２
１１は外周側に凸となつており、この焼成体２の
端面２２，２３研磨の際には焼成体の支持が中央
部分２１４の１点支持となり、平行度が出にくい
とか、端面２２，２３に段差が出来る等の欠点が
あつた。 FIG. 1 shows a front view of a conventional E-type ferrite molded body, and FIG. 2 shows a front view of a fired body obtained after firing the same molded body. In FIG. 1, the central thickness t 1 of the abdomen 11 of the core molded body is the same as the end thickness t. For this reason, after firing, as shown in FIG.
11 is convex on the outer circumferential side, and when polishing the end surfaces 22, 23 of this fired body 2, the fired body is supported at one point at the central portion 214, which makes it difficult to achieve parallelism, and the end surfaces 22, 23 There were drawbacks such as the formation of a step.
本発明はかかる従来技術の欠点を解決し、研磨
時の支持が行ないやすいＥ形フエライトコアを提
供するものである。 The present invention solves the drawbacks of the prior art and provides an E-type ferrite core that is easy to support during polishing.
本発明を以下実施例につき図面を用いて説明す
る。第３図には、実施例成形体の正面図を示す。
フエライトコアの腹部３１の中央部厚さt1を端部
厚さｔよりも小さくしてある。この成形体３は、
焼成した後も腹部の中央部厚さは、端部厚さより
も小さくなつており、少なくとも端部２点支点で
研磨することが出来、脚部端面の平行度は満足で
きる値となつていた。第４図には、別の実施例の
成形体正面図を示す。この成形体も焼成後、少な
くとも２点支持が行なえて良好な研磨精度を得ら
れた。 The present invention will be explained below using examples and drawings. FIG. 3 shows a front view of the molded article of the example.
The central thickness t 1 of the abdomen 31 of the ferrite core is made smaller than the end thickness t. This molded body 3 is
Even after firing, the thickness of the central part of the abdomen was smaller than the thickness of the ends, and it was possible to polish with at least two support points at the ends, and the parallelism of the end faces of the legs was a satisfactory value. FIG. 4 shows a front view of the molded body of another embodiment. After firing, this molded body could also be supported at at least two points and good polishing accuracy could be obtained.
本発明に依れば、焼成体の腹部の底部外周面は
下に凹の形状であるので、少なくとも２点支持で
研磨することが出来るものであつた。 According to the present invention, since the bottom outer circumferential surface of the abdomen of the fired body has a downwardly concave shape, it can be polished by supporting at least two points.
第１図は、従来例の成形体正面図、第２図は、
同焼成体の正面図、第３図は、実施例の成形体正
面図、第４図は、別の実施例の成形体正面図であ
る。
３：Ｅ形フエライトコア成形体、３１：腹部、
４１：腹部。
Figure 1 is a front view of a conventional molded product, and Figure 2 is a
FIG. 3 is a front view of the fired body, FIG. 3 is a front view of the molded body of the example, and FIG. 4 is a front view of the molded body of another example. 3: E-shaped ferrite core molded body, 31: Abdomen,
41: Abdomen.
Claims (1)
外側脚と、前記中心脚と外側脚とを連結する接続
部とからなるＥ形フエライトコアにおいて、前記
接続部の中心脚部分の厚さt1が、前記接続部の両
外側脚部分の厚さｔよりも薄いことを特徴とする
Ｅ形フエライトコア。1. In an E-shaped ferrite core consisting of a center leg, two outer legs located on both sides of the center leg, and a connection part that connects the center leg and the outer legs, the thickness of the center leg portion of the connection part An E-shaped ferrite core characterized in that t 1 is thinner than the thickness t of both outer leg portions of the connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12339282A JPS5914620A (en) | 1982-07-15 | 1982-07-15 | E-shaped ferrite core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12339282A JPS5914620A (en) | 1982-07-15 | 1982-07-15 | E-shaped ferrite core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5914620A JPS5914620A (en) | 1984-01-25 |
| JPS6355854B2 true JPS6355854B2 (en) | 1988-11-04 |
Family
ID=14859425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12339282A Granted JPS5914620A (en) | 1982-07-15 | 1982-07-15 | E-shaped ferrite core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5914620A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01179421U (en) * | 1988-06-06 | 1989-12-22 | ||
| JPH028117U (en) * | 1988-06-28 | 1990-01-19 | ||
| JPH11354315A (en) * | 1998-06-03 | 1999-12-24 | Hitachi Metals Ltd | Thin ferrite core |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5171996A (en) * | 1974-11-27 | 1976-06-22 | Telecommunications Sa | |
| JPS5420590U (en) * | 1977-07-13 | 1979-02-09 | ||
| JPS5534664B2 (en) * | 1977-07-13 | 1980-09-08 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5534664U (en) * | 1978-08-28 | 1980-03-06 |
-
1982
- 1982-07-15 JP JP12339282A patent/JPS5914620A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5171996A (en) * | 1974-11-27 | 1976-06-22 | Telecommunications Sa | |
| JPS5420590U (en) * | 1977-07-13 | 1979-02-09 | ||
| JPS5534664B2 (en) * | 1977-07-13 | 1980-09-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5914620A (en) | 1984-01-25 |
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