JPH06260347A - Magnetic material core - Google Patents
Magnetic material coreInfo
- Publication number
- JPH06260347A JPH06260347A JP5082382A JP8238293A JPH06260347A JP H06260347 A JPH06260347 A JP H06260347A JP 5082382 A JP5082382 A JP 5082382A JP 8238293 A JP8238293 A JP 8238293A JP H06260347 A JPH06260347 A JP H06260347A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic core
- abutting
- core
- magnetic material
- 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.)
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Links
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- Coils Or Transformers For Communication (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、トランスフオーマ，Ｎ
ＭＲ−ＣＴその他コアを分割する必要のある場合に用い
られている磁性体コアに関するものである。BACKGROUND OF THE INVENTION The present invention relates to a transformer, N.
The present invention relates to a magnetic core used when MR-CT or other cores need to be divided.
【０００２】[0002]
【従来の技術】磁性体コアは、トランス等の性能上の見
地からは分割せずにリング状とし、トロイダル巻線機の
ような特殊な機械を使用してコイルを出来るだけ均一に
薄く巻くのが良い。一般のＣＴ（Ｃｕｒｒｅｎｎｔ Ｔ
ｒａｎｓｆｏｒｍｅｒ）では現在もこの方法で作製して
いる。しかしこの方法ではコイルの巻き線速度が遅く、
特に線径が太くなると工業的に量産を行う事は難しい。
そこで、トランス等ではリング状とはせずに磁性体コア
を分割し、別々に巻いたコイルを作製した後に磁性体コ
アを突き合わせ、または接着したものが一般に用いられ
ている。2. Description of the Related Art From the viewpoint of performance of a transformer or the like, a magnetic core is formed into a ring shape without being divided, and a special machine such as a toroidal winding machine is used to wind a coil as thinly as possible. Is good. General CT (Current T)
(transformer) is still manufactured by this method. However, with this method, the winding speed of the coil is slow,
Especially when the wire diameter becomes thick, it is difficult to mass-produce industrially.
Therefore, in a transformer or the like, it is generally used that the magnetic cores are not divided into rings, but the magnetic cores are separately wound and then the magnetic cores are abutted or bonded together.
【０００３】図６、図７及び図８は従来のトランスフオ
ーマに用いられている分割型の磁性体コアの一般的な形
状を示したものである。図６の（Ａ）はＥＩコアと言わ
れているもの、（Ｂ）はＥＥコアと言われているもの、
（Ｃ）はＵＵコアと言われているものである。図７，図
８は他のタイプの磁性体コアで、図７の（Ａ）に示すＥ
コアや図８の俗に山型コアと言われているものがある。
上記のもの以外にも種々の形状のものが存在する。FIG. 6, FIG. 7 and FIG. 8 show a general shape of a split type magnetic core used in a conventional transformer. 6A is what is called an EI core, FIG. 6B is what is called an EE core,
(C) is what is called a UU core. 7 and 8 show another type of magnetic core, which is shown in FIG.
There is a core and what is commonly called a mountain core in FIG.
There are various shapes other than the above.
【０００４】図７の積層タイプの磁性体コアでは、図７
の（Ａ）のようにＥ型薄板からなる２枚の磁性体コア分
割体１，１を互いに反対向きに向かい合わせ、上下に厚
さ分ずらして同図の（Ｂ）のように一部を残して重なる
ようにスライドさせ、同図の（Ｃ）のように厚さ方向に
複数段に積層し、図外の接着剤層を介して接触させるこ
とにより磁路を形成している。図８の磁性体コアでは、
同図の（Ａ）のように、一対の山型の磁性体コア分割体
２，２を互いに同一のレベルで向かい合わせて、端面同
士で突き合わせることにより磁路を形成している。In the laminated type magnetic core shown in FIG.
As shown in (A) above, two magnetic core divided bodies 1 and 1 made of E-shaped thin plates are opposed to each other in opposite directions, and are vertically displaced by the thickness, and a part thereof is removed as shown in (B) of the same figure. The magnetic paths are formed by sliding them so as to overlap with each other, stacking them in a plurality of layers in the thickness direction as shown in FIG. 7C, and bringing them into contact with each other through an adhesive layer (not shown). In the magnetic core of FIG. 8,
As shown in (A) of the figure, a pair of mountain-shaped magnetic core divided bodies 2 and 2 face each other at the same level, and end faces thereof abut each other to form a magnetic path.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、図６に
示す形状の磁性体コア分割体を突き合わせ、接着などの
手段でリング状の磁性体コアに形成して用いると、突き
合わせまたは接着した部分からの漏洩磁束が大きく、磁
気抵抗が増大してコアの実効透磁率が低下し、トランス
等の性能が低下する。この突き合わせ部での漏洩磁束を
低減させるには、突き合わせ部は接着せずに端面に精密
な表面仕上げを施し、治具で締め付けて固定する必要が
あり、製造工程が複雑になるという問題点があった。However, if the magnetic core divided bodies having the shape shown in FIG. 6 are butted and formed into a ring-shaped magnetic core by means such as bonding, the split cores from the butted or bonded parts are used. The leakage magnetic flux is large, the magnetic resistance increases, the effective magnetic permeability of the core decreases, and the performance of the transformer and the like decreases. In order to reduce the leakage magnetic flux at the butt section, it is necessary to give a precise surface finish to the end surface without adhering the butt section and fix it by tightening with a jig, which complicates the manufacturing process. there were.
【０００７】一方、図７の積層型の磁性体コアの場合
は、各磁性体コア分割体の端面の精密加工は必要ない。
しかし磁性体コア分割体同士が絶縁状態で面接触してい
るため、渦電流損失は減少するが漏洩磁束は大きくなり
トランス等の性能を悪化させているという問題点があっ
た。また、図８の磁性体コアの場合は、各磁性体コア分
割体２の突き合わせ部３の表面積を大きくする事で漏洩
磁束が小さくなる効果はあるが、突き合わせ部３からの
漏洩磁束をできる限り減少させるには各磁性体コア分割
体２の突き合わせ端面を高精度に仕上げ加工する必要が
あり、やはり製造工程が複雑になるという問題点があっ
た。On the other hand, in the case of the laminated type magnetic core shown in FIG. 7, it is not necessary to precisely process the end face of each magnetic core divided body.
However, since the magnetic core divided bodies are in surface contact with each other in an insulating state, there is a problem that the eddy current loss is reduced but the leakage magnetic flux is increased and the performance of the transformer or the like is deteriorated. Further, in the case of the magnetic core of FIG. 8, there is an effect that the leakage magnetic flux is reduced by increasing the surface area of the abutting portion 3 of each magnetic core divided body 2, but the leakage magnetic flux from the abutting portion 3 is as much as possible. In order to reduce the number, it is necessary to finish the abutting end surface of each magnetic core divided body 2 with high accuracy, which also causes a problem that the manufacturing process becomes complicated.
【０００８】特に、大型の磁性体コアの場合には必ず分
割することを余儀なくされ、その接合が問題になる。現
在のところ適当な方法がなく、上記のように磁性体コア
分割体の端面を高精度に仕上げて接着している例が多い
が、接着面のギャップによる漏洩磁束だけでなく、重量
が重いため接着強度を十分に大きくしなければならない
という問題点が加わる。Particularly, in the case of a large magnetic core, it is inevitable that the core is divided, and the joining thereof becomes a problem. At present, there is no suitable method, and there are many examples in which the end surface of the magnetic core divided body is finished with high precision as described above and bonded, but not only the leakage flux due to the gap of the bonded surface but also the weight is heavy. The problem is that the adhesive strength must be sufficiently high.
【０００９】このように、従来の分割式の磁性体コアに
あっては、 漏洩磁束が大きくなり、磁気抵抗が増大してコアの実
効透磁率が低下する。 漏洩磁束を小さくするには、各磁性体コア分割体の突
き合わせ端面の精密加工を必要とし、場合によっては特
殊な治具で固定するなど、製造工程が複雑化してしま
う。 大型の磁性体コアの場合、磁性体コア分割体の突き合
わせ部を接着して一体化するのが普通であるが、接着面
の端面仕上げ加工及び接着強度を確保しなけらばならな
い。 などの未解決の問題点があった。As described above, in the conventional split type magnetic core, the leakage magnetic flux is increased, the magnetic resistance is increased, and the effective magnetic permeability of the core is lowered. In order to reduce the leakage magnetic flux, it is necessary to precisely process the abutting end faces of each magnetic core divided body, and in some cases, the manufacturing process becomes complicated, such as fixing with a special jig. In the case of a large-sized magnetic core, it is usual that the abutting portions of the magnetic core divided bodies are bonded and integrated, but it is necessary to secure the end face finishing processing and the bonding strength of the bonding surface. There was an unsolved problem such as.
【００１０】本発明は、このような従来の問題点を解決
するためになされたものであり、分割式であっても漏洩
磁束が少なく、且つ極めて製造の容易な磁性体コアを提
供することを目的としている。The present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to provide a magnetic core which has a small leakage magnetic flux and is extremely easy to manufacture even if it is a split type. Has an aim.
【００１１】[0011]
【課題を解決するための手段】本発明の発明者らは、従
来技術の突き合わせ方式と積層方式の長所を生かし、か
つ、上述した問題点を解決し、さらに組立及び接合を容
易にするために鋭意努力した結果、本発明に到達した。
すなわち本発明は、磁性体コア分割体を組み立てて磁路
を形成する磁性体コアにおいて、前記磁性体コア分割体
同士の突き合わせ部を複数の面で形成するとともに、該
複数の面のうちの非突き合わせ面を接触面としたことを
特徴とする。SUMMARY OF THE INVENTION The inventors of the present invention utilize the advantages of the butt and stacking methods of the prior art, solve the above-mentioned problems, and further facilitate assembly and joining. As a result of earnest efforts, the present invention has been achieved.
That is, according to the present invention, in a magnetic core in which magnetic core divided bodies are assembled to form a magnetic path, the abutting portions of the magnetic core divided bodies are formed by a plurality of surfaces, and The butt surface is a contact surface.
【００１２】以下、さらに本発明の詳細を図面を参照し
て説明する。まず焼結体またはボンド体コアの場合を述
べる。図１は、一対の磁性体コア分割体１１の突き合わ
せ部２２を示したもので、図１の（Ａ）は断面図、同図
（Ｂ）は平面図である。Hereinafter, the details of the present invention will be described with reference to the drawings. First, the case of a sintered body or a bonded body core will be described. 1A and 1B show abutting portions 22 of a pair of magnetic core divided bodies 11. FIG. 1A is a sectional view and FIG. 1B is a plan view.
【００１３】本発明磁性体コアは、従来のものと異な
り、磁性体コア分割体１１の突き合わせ部２２が突き合
わせ面１２と非突き合わせ面１３とからなる複数の面で
形成され、非突き合わせ面１３が接触面とされている。
図１の場合は、磁性体コア分割体１１の端部を厚さ方向
に段状にして、二面の突き合わせ面１２ａ，１２ｂをず
らして形成するとともに、両突き合わせ面１２ａ，１２
ｂの間にはコア平面１１ａに平行な非突き合わせ面１３
を設けている。In the magnetic core of the present invention, unlike the conventional one, the abutting portion 22 of the magnetic core divided body 11 is formed by a plurality of surfaces including the abutting surface 12 and the non-abutting surface 13, and the non-abutting surface 13 is formed. It is considered to be the contact surface.
In the case of FIG. 1, the end portions of the magnetic core divided body 11 are stepped in the thickness direction to form the two abutting faces 12a and 12b with a shift, and the abutting faces 12a and 12b are also formed.
The non-butting surface 13 parallel to the core plane 11a is located between b.
Is provided.
【００１４】一対の磁性体コア分割体１１を組み立てる
際は、一方の磁性体コア分割体１１の突き合わせ面１２
ａ，１２ｂを、それぞれ他方の磁性体コア分割体１１の
突き合わせ面１２ｂ，１２ａに対向させ、両方の非突き
合わせ面１３は接触させる。各突き合わせ面１２ａと１
２ｂとの間には、空隙１４と１５との両方またはいずれ
か一方が存在してもよい。組み立てた磁性体コアの突き
合わせ部２２にそれらの空隙１４，１５が存在していて
も、接触している非突き合わせ面１３により容易に迂回
磁路が形成され、磁性体コアの表面層から僅かに外部へ
磁束が漏洩するだけである。従って、非突き合わせ面１
３はあるていど長く広い面とし、接触面積を大きくとる
ことで磁束漏洩防止の効果が増大される。When assembling the pair of magnetic core divided bodies 11, the abutting surface 12 of one magnetic core divided body 11 is assembled.
The a and 12b are made to face the abutting surfaces 12b and 12a of the other magnetic core divided body 11, respectively, and both non-abutting surfaces 13 are made to contact. Each abutting surface 12a and 1
The voids 14 and 15 may be present together with either or both of them. Even if the gaps 14 and 15 are present in the abutting portion 22 of the assembled magnetic core, a detour magnetic path is easily formed by the non-abutting surface 13 in contact with each other, and the detour magnetic path is slightly formed from the surface layer of the magnetic core. The magnetic flux only leaks to the outside. Therefore, the non-butting surface 1
3 has a long and wide surface as much as possible, and the effect of preventing magnetic flux leakage is increased by increasing the contact area.
【００１５】図１の突き合わせ部２２の断面形状は、図
２のように種々に変形しても良い。図２の（Ａ）は非突
き合わせ面１３を斜面としたもので、図１のものより組
立が容易になる。図２の（Ｂ）は非突き合わせ面１３を
斜面とすると共に、各突き合わせ面１２ａ，１２ｂの高
さをより高くして対向面積を増大させたもので、突き合
わせ部２２からの磁束漏洩は上述の図１及び図２の
（Ａ）のものより少なくなる。さらに、接触面である非
突き合わせ面１３を図２の（Ｃ）のように二面以上にし
ても良い。The cross-sectional shape of the butted portion 22 of FIG. 1 may be variously modified as shown in FIG. In FIG. 2A, the non-butting surface 13 is an inclined surface, which is easier to assemble than that in FIG. In FIG. 2B, the non-butting surface 13 is an inclined surface, and the height of each of the abutting surfaces 12a and 12b is made higher to increase the facing area. The magnetic flux leakage from the abutting portion 22 is as described above. It is less than that of FIGS. 1 and 2A. Further, the non-butting surface 13 which is the contact surface may be two or more surfaces as shown in FIG.
【００１６】いずれにしても、本発明の場合は、磁性体
コア分割体に対する従来のような高精度の端面加工は必
要がない。薄板による積層方式の磁性体コアに本発明を
適用した場合を、図３に示す。図３の（Ａ）は、薄板か
らなる磁性体コア分割体１１の突き合わせ部２２は、端
面が突き合わせ面１２、薄板表面が非突き合わせ面１３
とされ、非突き合わせ面１３が接触面とされている。こ
の磁性体コア分割体１１を一対づつ突き合わせ面１２で
突き合わせたうえで、その突き合わせ部２２を交互にず
らして厚さ方向に多層に重ね、各非突き合わせ面１３を
接触させて積層している。In any case, in the case of the present invention, it is not necessary to perform end face machining with high precision on the magnetic core divided body as in the conventional case. FIG. 3 shows a case where the present invention is applied to a laminated magnetic core made of thin plates. 3A, the abutting portion 22 of the magnetic core divided body 11 made of a thin plate has an abutting surface 12 at the end surface and a non-butting surface 13 at the thin plate surface.
And the non-butting surface 13 is the contact surface. The magnetic core divided bodies 11 are abutted one by one on the abutting surface 12, and then the abutting portions 22 are alternately shifted to be laminated in a multi-layer in the thickness direction, and the non-abutting surfaces 13 are brought into contact with each other to be laminated.
【００１７】このように各層毎に突き合わせ部２２を交
互にずらして積層せずに、図３の（Ｂ）のように複数層
毎に積層しても良い。図３の（Ｃ）は平面図である。原
理的には薄板積層により、磁束漏洩防止の効果は増大す
る。また、図では突き合わせ部２２は厚み方向にそろえ
た位置になっているが、各層の位置は必ずしも図のよう
に揃えずばらばらであっても良い。本発明はリング状コ
アに対しても適応できる。図４の（Ａ）は焼結体、ボン
ド体の２分割タイプ、同図（Ｂ）は薄板積層タイプであ
る。同図の（Ｂ）では簡単のために２層としているが、
何層でも良く、突き合わせ部は同一位置でなくても良
い。The abutting portions 22 may not be alternately staggered in each layer in this way, but may be stacked in a plurality of layers as shown in FIG. 3B. FIG. 3C is a plan view. In principle, the lamination of thin plates increases the effect of preventing magnetic flux leakage. Further, although the abutting portions 22 are aligned in the thickness direction in the figure, the positions of the layers may not necessarily be aligned as shown in the figure but may be different. The present invention can also be applied to a ring-shaped core. FIG. 4A is a two-divided type of a sintered body and a bonded body, and FIG. 4B is a thin plate laminated type. In (B) of the figure, two layers are used for the sake of simplicity.
There may be any number of layers, and the butted portions do not have to be at the same position.
【００１８】本発明に使用する磁石に特に制限はない
が、例えばフエライト磁石や希土類磁石がある。希土類
磁石としてはＳｍ，Ｃｏを主成分とした磁石、あるいは
Ｎｄ、Ｆｅ、Ｂを主成分とした磁石、あるいはＳｍ，Ｆ
ｅ，Ｎを主成分とした磁石がある。The magnet used in the present invention is not particularly limited, and examples thereof include ferrite magnets and rare earth magnets. As the rare earth magnet, a magnet containing Sm, Co as a main component, a magnet containing Nd, Fe, B as a main component, or Sm, F
There are magnets mainly composed of e and N.
【００１９】[0019]
【実施例】以下に、本発明の実施例を示す。 実施例 １ 図５の（Ａ）のような形状のフエライトコアを組み合わ
せ、Ｄ面より２．５ｍｍ 離れた場所での磁界の強さを
測定した。一方、比較例として図５の（Ｂ）に示すよう
にフエライトコアを組み合わせ、Ｄ面より２．５ｍｍ離
れた場所での磁界の強さを測定し、実施例の磁界の強度
と比較した。結果は比較例の磁界強度を１．０とすると
実施例の磁界強度は１．５であった。EXAMPLES Examples of the present invention will be shown below. Example 1 Ferrite cores having a shape as shown in FIG. 5A were combined and the strength of the magnetic field was measured at a location 2.5 mm away from the D surface. On the other hand, as a comparative example, a ferrite core was combined as shown in FIG. 5B, and the magnetic field strength at a location 2.5 mm away from the D surface was measured and compared with the magnetic field strength of the example. As a result, when the magnetic field strength of the comparative example was 1.0, the magnetic field strength of the example was 1.5.
【００２０】実施例 ２ ＳｍＣｏを主成分として形成した図５の（Ａ）の磁性体
コアを組み合わせ、Ｄ面より２．５ｍｍ離れた場所での
磁界の強さを測定し、比較例１の磁界の強度と比較する
と比較例の１．７倍の磁界強度を示した。Example 2 A magnetic field of Comparative Example 1 was measured by combining the magnetic cores of FIG. 5A formed mainly of SmCo and measuring the magnetic field strength 2.5 mm away from the D surface. The magnetic field strength was 1.7 times that of the comparative example.
【００２１】実施例 ３ Ｎｄ、Ｆｅ、Ｂを主成分とする図５の（Ａ）の磁性体コ
アを組み合わせ、Ｄ面より２．５ｍｍ離れた場所での磁
界の強さを測定し、比較例１の磁界の強度と比較すると
比較例の１．５倍の磁界強度を示した。Example 3 A magnetic core having Nd, Fe and B as main components and having a magnetic core as shown in FIG. 5A was combined, and the strength of the magnetic field at a location 2.5 mm away from the D surface was measured. When compared with the magnetic field strength of No. 1, the magnetic field strength was 1.5 times that of the comparative example.
【００２２】実施例 ４ Ｓｍ、Ｆｅ、Ｎを主成分とする図５の（Ａ）のような形
状のボンド磁性体コアを組み合わせ、Ｄ面より２．５ｍ
ｍ離れた場所での磁界の強さを測定し、比較例の磁界の
強度と比較すると比較例の１．６倍の磁界強度を示し
た。Example 4 A bonded magnetic core containing Sm, Fe and N as main components and having a shape as shown in FIG.
The strength of the magnetic field at a distance of m was measured and compared with the strength of the magnetic field of the comparative example, the magnetic field strength was 1.6 times that of the comparative example.
【００２３】[0023]
【発明の効果】本発明は、磁性体コア分割体同士の突き
合わせ部を複数の面で形成するとともに、該複数の面の
うちの非突き合わせ面を接触面としたため、突き合わせ
部に若干のギャップがあっても漏洩磁束を少なくするこ
とができ、漏洩磁束の小さい磁性体コアを分割式で工業
的に極めて容易に生産することができる。According to the present invention, the abutting portions of the magnetic core divided bodies are formed by a plurality of surfaces, and the non-abutting surface of the plurality of surfaces is used as the contact surface. Even if there is, the magnetic flux leakage can be reduced, and the magnetic core having a small magnetic flux leakage can be industrially very easily produced by the split type.
【００２４】また、非突き合わせ部に接触面を持ちこの
接触面を接着することにより、磁束漏洩が少ないばかり
でなく、コア同士の接合が容易になり、かつ強固になる
という効果を奏する。さらに、突き合わせ部のギャップ
が多少あっても問題が少ないので、接着強度を重視する
場合には、突き合わせ部で接着でき、且つ漏洩磁束が少
ないという効果も得られる。Further, by having a contact surface at the non-butting portion and adhering this contact surface, not only magnetic flux leakage is small, but also the cores can be easily joined and strengthened. Furthermore, since there is little problem even if there is a slight gap at the abutting portion, when importance is attached to the adhesive strength, it is possible to obtain an effect that the abutting portion can adhere and the leakage magnetic flux is small.
【００２５】[0025]
【図１】本発明による焼結体またはボンド体による磁性
体コアの突き合わせ部を示たもので、（Ａ）は断面図、
（Ｂ）は平面図である。FIG. 1 shows a butted portion of a magnetic core made of a sintered body or a bonded body according to the present invention, (A) is a sectional view,
(B) is a plan view.
【図２】（Ａ），（Ｂ），（Ｃ）はそれぞれ焼結体また
はボンド体による図１の変形の例を示す断面図である。2A, 2B, and 2C are cross-sectional views showing an example of modification of FIG. 1 by a sintered body or a bonded body.
【図３】本発明の薄板積層方式の場合であり、（Ａ）は
一層毎に突き合わせて積層したものの断面図、（Ｂ）は
他の積層方式の断面図、（Ｃ）は平面図である。3A and 3B show a case of the thin plate laminating system of the present invention, in which FIG. 3A is a cross-sectional view of the layers laminated by butting each other, FIG. 3B is a cross-sectional view of another laminating system, and FIG. .
【図４】リングコアの分割方式の場合で、（Ａ）は焼結
体またはボンド体の斜視図、（Ｂ）は積層体の斜視図で
ある。FIG. 4A is a perspective view of a sintered body or a bonded body, and FIG. 4B is a perspective view of a laminated body in the case of a ring core division method.
【図５】（Ａ）は実施例の磁性体コアの側面図、（Ｂ）
は比較例の磁性体コアの側面図である。FIG. 5A is a side view of the magnetic core of the embodiment, and FIG.
FIG. 4 is a side view of a magnetic core of Comparative Example.
【図６】（Ａ），（Ｂ），（Ｃ）はそれぞれ、従来の分
割式の磁性体コアの平面図である。6 (A), (B) and (C) are plan views of a conventional split type magnetic core.
【図７】（Ａ）は従来のＥ型積層磁性体コアの積層前の
平面図、（Ｂ）はＥ型積層磁性体コアの積層後の平面
図、（Ｃ）は積層後の側面図である。7A is a plan view of a conventional E-type laminated magnetic core before lamination, FIG. 7B is a plan view of an E-type laminated magnetic core after lamination, and FIG. 7C is a side view after lamination. is there.
【図８】（Ａ）は従来の山型積層磁性体コアの平面図、
（Ｂ）はその側面図である。FIG. 8A is a plan view of a conventional mountain-shaped laminated magnetic core,
(B) is a side view thereof.
１１ 磁性体コア分割体 １２ 突き合わせ面 １３ 非突き合わせ面 ２２ 突き合わせ部 11 magnetic core divided body 12 butt surface 13 non-butt surface 22 butt portion
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年１０月２５日[Submission date] October 25, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図５[Name of item to be corrected] Figure 5
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図５】 [Figure 5]
【手続補正書】[Procedure amendment]
【提出日】平成５年１２月７日[Submission date] December 7, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００４[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００４】図７の積層タイプの磁性体コアでは、図７
の（Ａ）のようにＥ型薄板からなる２枚の磁性体コア分
割体１，１を互いに反対向きに向かい合わせ、上下に厚
さ分ずらして同図の（Ｂ）のように一部を残して重なる
ようにスライドさせ、同図の（Ｃ）（（Ｂ）の平面図）
のように厚さ方向に複数段に積層し、図外の接着剤層を
介して接触させることにより磁路を形成している。図８
の磁性体コアでは、同図の（Ａ）のように、一対の山型
の磁性体コア分割体２，２を互いに同一のレベルで向か
い合わせて、端面同士で突き合わせることにより磁路を
形成している。（（Ｂ）は（Ａ）の平面図で３は突き合
わせ部） In the laminated type magnetic core shown in FIG.
As shown in (A) above, two magnetic core divided bodies 1 and 1 made of E-shaped thin plates are opposed to each other in opposite directions, and are vertically displaced by the thickness, and a part thereof is removed as shown in (B) of the same figure. Slide them so that they overlap, leaving (C) in the figure ( plan view of (B))
As described above, the magnetic paths are formed by stacking the layers in a plurality of layers in the thickness direction and bringing them into contact with each other through an adhesive layer (not shown). Figure 8
In the magnetic core of No. 2, as shown in (A) of the same figure, a pair of mountain-shaped magnetic core divided bodies 2 and 2 are made to face each other at the same level and end faces are abutted to form a magnetic path. is doing. ((B) is a plan view of (A) and 3 is abutting.
Kake part)
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１３】本発明磁性体コアは、従来のものと異な
り、磁性体コア分割体１１の突き合わせ部が突き合わせ
面１２と非突き合わせ面１３とからなる複数の面で形成
され、非突き合わせ面１３が接触面とされている。図１
の場合は、磁性体コア分割体１１の端部を厚さ方向に段
状にして、二面の突き合わせ面１２ａ，１２ｂをずらし
て形成するとともに、両突き合わせ面１２ａ，１２ｂの
間にはコア平面１１ａに平行な非突き合わせ面１３を設
けている。In the magnetic core of the present invention, unlike the conventional one, the abutting portion of the magnetic core divided body 11 is formed by a plurality of surfaces including the abutting surface 12 and the non-abutting surface 13, and the non-abutting surface 13 is in contact. It is regarded as a face. Figure 1
In the case of, the end portions of the magnetic core divided body 11 are stepped in the thickness direction and the two abutting surfaces 12a and 12b are displaced from each other, and a core plane is formed between the abutting surfaces 12a and 12b. A non-butting surface 13 parallel to 11a is provided.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１５[Name of item to be corrected] 0015
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１５】図１の突き合わせ部の断面形状は、図２の
ように種々に変形しても良い。図２の（Ａ）は非突き合
わせ面１３を斜面としたもので、図１のものより組立が
容易になる。図２の（Ｂ）は非突き合わせ面１３を斜面
とすると共に、各突き合わせ面１２ａ，１２ｂの高さを
より高くして対向面積を増大させたもので、突き合わせ
部２２からの磁束漏洩は上述の図１及び図２の（Ａ）の
ものより少なくなる。さらに、接触面である非突き合わ
せ面１３を図２の（Ｃ）のように二面以上にしても良
い。 The cross-sectional shape of the butted portion in FIG. 1 may be variously modified as shown in FIG. In FIG. 2A, the non-butting surface 13 is an inclined surface, which is easier to assemble than that in FIG. In FIG. 2B, the non-butting surface 13 is an inclined surface, and the height of each of the abutting surfaces 12a and 12b is made higher to increase the facing area. The magnetic flux leakage from the abutting portion 22 is as described above. It is less than that of FIGS. 1 and 2A. Further, the non-butting surface 13 which is the contact surface may be two or more surfaces as shown in FIG.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２０[Correction target item name] 0020
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００２０】実施例 ２ Ｓｍ、Ｃｏを主成分として形成した図５の（Ａ）の磁性
体コアを組み合わせ、Ｄ面より２．５ｍｍ離れた場所で
の磁界の強さを測定し、実施例１の比較例と同様な形状
のＳｍ、Ｃｏを主成分とする磁石の磁界の強度と比較す
ると比較例の１．７倍の磁界強度を示した。The combination of the magnetic core of FIG. 5 (A) formed in Example 2 Sm, Co as a main component, and measuring the intensity of the magnetic field at a distance 2.5mm from surface D, Example 1 Similar shape to the comparative example
When compared with the magnetic field strength of the magnet containing Sm and Co as the main components, the magnetic field strength was 1.7 times that of the comparative example.
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２１[Correction target item name] 0021
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００２１】実施例 ３ Ｎｄ、Ｆｅ、Ｂを主成分とする図５の（Ａ）の磁性体コ
アを組み合わせ、Ｄ面より２．５ｍｍ離れた場所での磁
界の強さを測定し、実施例１の比較例と同様な形状のＮ
ｄ、Ｆｅ、Ｂを主成分とする磁石の磁界の強度と比較す
ると比較例の１．５倍の磁界強度を示した。The combination of the magnetic core of Example 3 Nd, Fe, B of FIG. 5 as a main component (A), measuring the strength of the magnetic field at a distance 2.5mm from surface D, Example N of the same shape as the comparative example of No. 1
When compared with the magnetic field strength of the magnet containing d, Fe, and B as the main components, the magnetic field strength was 1.5 times that of the comparative example.
【手続補正６】[Procedure correction 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２２[Name of item to be corrected] 0022
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００２２】実施例 ４ Ｓｍ、Ｆｅ、Ｎを主成分とする図５の（Ａ）のような形
状のボンド磁性体コアを組み合わせ、Ｄ面より２．５ｍ
ｍ離れた場所での磁界の強さを測定し、実施例１の比較
例と同様な形状のＳｍ、Ｆｅ、Ｎを主成分とする磁石の
磁界の強度と比較すると比較例の１．６倍の磁界強度を
示した。Example 4 A bonded magnetic core containing Sm, Fe and N as main components and having a shape as shown in FIG.
The strength of the magnetic field was measured at a distance of m , and comparison with Example 1 was made.
Of a magnet mainly composed of Sm, Fe and N having the same shape as the example
When compared with the magnetic field strength, the magnetic field strength was 1.6 times that of the comparative example.
【手続補正７】[Procedure Amendment 7]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図１[Name of item to be corrected] Figure 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１】 [Figure 1]
【手続補正８】[Procedure Amendment 8]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図２[Name of item to be corrected] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図２】 [Fig. 2]
【手続補正９】[Procedure Amendment 9]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図５[Name of item to be corrected] Figure 5
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図５】 [Figure 5]
Claims (1)
成する磁性体コアにおいて、前記磁性体コア分割体同士
の突き合わせ部を複数の面で形成するとともに、該複数
の面のうちの非突き合わせ面を接触面としたことを特徴
とする磁性体コア。1. In a magnetic core for assembling a magnetic core divided body to form a magnetic path, abutting portions of the magnetic core divided bodies are formed by a plurality of surfaces, and a non-contacting portion of the plurality of surfaces is formed. A magnetic core characterized in that the abutting surfaces are contact surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5082382A JPH06260347A (en) | 1993-03-03 | 1993-03-03 | Magnetic material core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5082382A JPH06260347A (en) | 1993-03-03 | 1993-03-03 | Magnetic material core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06260347A true JPH06260347A (en) | 1994-09-16 |
Family
ID=13773040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5082382A Withdrawn JPH06260347A (en) | 1993-03-03 | 1993-03-03 | Magnetic material core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06260347A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008172162A (en) * | 2007-01-15 | 2008-07-24 | Denso Corp | Soft magnetic material for ignition coil |
| JP2009135456A (en) * | 2007-10-25 | 2009-06-18 | Greatchip Technology Co Ltd | Transformer |
| JP2010258365A (en) * | 2009-04-28 | 2010-11-11 | Nippon Steel Corp | Iron core for electric power apparatus |
| WO2014112480A1 (en) * | 2013-01-21 | 2014-07-24 | 住友電気工業株式会社 | Core member, inductor, converter, and power-conversion device |
| CN105931808A (en) * | 2016-05-26 | 2016-09-07 | 贵阳顺络迅达电子有限公司 | Fastener type magnetic core structure and assembly method therefor |
| CN113871153A (en) * | 2020-06-30 | 2021-12-31 | 沙夫纳 Emv 股份公司 | Magnetic housing and magnetic device |
-
1993
- 1993-03-03 JP JP5082382A patent/JPH06260347A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008172162A (en) * | 2007-01-15 | 2008-07-24 | Denso Corp | Soft magnetic material for ignition coil |
| JP2009135456A (en) * | 2007-10-25 | 2009-06-18 | Greatchip Technology Co Ltd | Transformer |
| JP2010258365A (en) * | 2009-04-28 | 2010-11-11 | Nippon Steel Corp | Iron core for electric power apparatus |
| WO2014112480A1 (en) * | 2013-01-21 | 2014-07-24 | 住友電気工業株式会社 | Core member, inductor, converter, and power-conversion device |
| CN105931808A (en) * | 2016-05-26 | 2016-09-07 | 贵阳顺络迅达电子有限公司 | Fastener type magnetic core structure and assembly method therefor |
| CN113871153A (en) * | 2020-06-30 | 2021-12-31 | 沙夫纳 Emv 股份公司 | Magnetic housing and magnetic device |
| JP2022013716A (en) * | 2020-06-30 | 2022-01-18 | シャフナー・エーエムファウ・アクチェンゲゼルシャフト | Magnetic shell having and magnetic device |
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