JPS61222007A - Magnetic head for vertical recording - Google Patents
Magnetic head for vertical recordingInfo
- Publication number
- JPS61222007A JPS61222007A JP6258785A JP6258785A JPS61222007A JP S61222007 A JPS61222007 A JP S61222007A JP 6258785 A JP6258785 A JP 6258785A JP 6258785 A JP6258785 A JP 6258785A JP S61222007 A JPS61222007 A JP S61222007A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- recording
- magnetic
- core
- tip
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気ヘッドに係り、特に記録媒体の厚み方向の
磁化によって記録する垂直記録方式に用いられる垂直記
録再生用磁気ヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head, and particularly to a perpendicular recording/reproducing magnetic head used in a perpendicular recording system in which recording is performed by magnetization in the thickness direction of a recording medium.
近年、高密度記録（短波長記録）に適した方式として記
録媒体の厚み方向に磁化する垂直記録方式が注目されて
いる。一般に記録媒体と磁気ヘッドとの相対移行方向の
磁化によって記録するいわゆる長手記録方式においては
、記録信号が短波源になる程自己減磁界が大きくなるの
に対して、垂直記録方式においては原理的に短波長稈記
録された磁化の反磁界が小さいため高密度記録ができる
という特徴がある。しかしながらそのためには膜面に垂
直な異方性を有する記録媒体と、記録媒体にできるだけ
垂直な強い磁界を発生する垂直記録用磁気ヘッドが必要
である。In recent years, a perpendicular recording method in which the recording medium is magnetized in the thickness direction has attracted attention as a method suitable for high-density recording (short wavelength recording). In general, in the so-called longitudinal recording method, which records by magnetization in the direction of relative transition between the recording medium and the magnetic head, the self-demagnetizing field increases as the recording signal becomes a shorter wave source, whereas in the perpendicular recording method, in principle, It is characterized by the ability to perform high-density recording because the demagnetizing field of short-wavelength recorded magnetization is small. However, this requires a recording medium with anisotropy perpendicular to the film surface and a perpendicular recording magnetic head that generates a strong magnetic field as perpendicular to the recording medium as possible.
第２図は従来提案されている垂直記録用磁気ヘッドの一
例を示すもので、主磁極励磁型ヘッドである。この磁気
ヘッドは記録媒体１に対向して主磁極膜と呼ばれる高透
磁率薄膜２が配置され、上記主磁極膜を先端部に非磁性
体３を接合した巻線溝５を有するフェライト等の軟磁性
体コア４と巻線溝５′を有する非磁性体基板日によって
保持されている。記録及び再生用のコイル７は上記軟磁
性体コア４と基板材日の周囲に巻装しである。FIG. 2 shows an example of a conventional perpendicular recording magnetic head, which is a main pole excitation type head. This magnetic head has a high magnetic permeability thin film 2 called a main pole film disposed facing a recording medium 1, and the main pole film is made of a soft material such as ferrite having a winding groove 5 with a non-magnetic material 3 bonded to the tip. It is held by a magnetic core 4 and a non-magnetic substrate having a winding groove 5'. A recording and reproducing coil 7 is wound around the soft magnetic core 4 and the substrate material.
ところで、このような垂直記録用磁気ヘッドの記録再生
効率を高めるためには高透磁率薄膜と磁気コアを近接さ
せ有効に磁気透導を得るとともに。By the way, in order to improve the recording and reproducing efficiency of such a perpendicular recording magnetic head, the high magnetic permeability thin film and the magnetic core are brought close to each other to effectively obtain magnetic permeability.
コイルを高透磁率薄膜に接近して巻くことが要求される
。It is required that the coil be wound close to the high permeability thin film.
しかしながら、上記従来例の構造の磁気ヘッドでは、巻
線を最後に巻装するため、巻線工程に精度と時間を必要
とするばかりでなく１巻線状態や巻線位置を一定にする
ことが難かしいためヘッドの出力特性にバラツキを生ず
るという欠点がある。However, in the magnetic head of the conventional structure described above, since the winding is wound last, the winding process not only requires precision and time, but also makes it difficult to keep the state of each winding and the winding position constant. Since it is difficult, it has the disadvantage of causing variations in the output characteristics of the head.
ｃ問題を解決するための手段〕
本発明は上記問題点を解決するためになされたもので磁
気ヘッドの製造工程において高透磁率薄膜を有する主磁
極部材と巻線をあらかじめ挿入しかつ固定した軟磁性体
より成るバックコアをそれぞれ準備し、しかる後に該バ
ックコアと上記主磁極部材とを接合して磁気ヘッドを形
成することにより、巻線工程を略簡化したと同時に１巻
線状態巻線位置が安定化されるため出力特性のバラツキ
が少ない安定した垂直記録用磁気ヘッドを得ることがで
きる。Means for Solving Problem c] The present invention has been made to solve the above problem, and in the manufacturing process of a magnetic head, a main pole member having a high magnetic permeability thin film and a winding are inserted in advance and fixed. By preparing back cores each made of a magnetic material and then joining the back cores and the above-mentioned main magnetic pole member to form a magnetic head, the winding process is substantially simplified, and at the same time, the winding position in the single winding state can be changed. is stabilized, so a stable perpendicular recording magnetic head with less variation in output characteristics can be obtained.
第１図（ａ）は本発明による垂直記録用磁気ヘッドの実
施例を示す図で、２は高透磁率薄膜、３゜３′は非磁性
体、４は軟磁性体コア、５は巻線溝、６はバンクコア、
７は記録再生用コイルである。FIG. 1(a) is a diagram showing an embodiment of the magnetic head for perpendicular recording according to the present invention, in which 2 is a high magnetic permeability thin film, 3°3' is a non-magnetic material, 4 is a soft magnetic core, and 5 is a winding. Groove, 6 is bank core,
7 is a recording/reproducing coil.
本実施例の垂直記録用磁気ヘッドは第１図（ｂ）に示す
ように、非磁性体３と軟磁性体コア４とを接合した第１
の部材と非磁性体３′にスパッタ等で形成された高透磁
率薄膜２′を有する第２の部材とを接合して成る主磁極
部材８と１巻ｌＩＡ溝を有する軟磁性体より成るバック
コア６及び接着剤であらかじめ整形した記録再生用コイ
ル７をそれぞれ準備し、しかる後にまずコイル７をバッ
クコア６の巻線溝５に挿入し接着剤で固定し１次に該バ
ックコアを上記主磁極部材と接合して形成される。As shown in FIG. 1(b), the perpendicular recording magnetic head of this embodiment has a first magnetic head in which a non-magnetic material 3 and a soft magnetic material core 4 are joined.
and a second member having a high magnetic permeability thin film 2' formed by sputtering or the like on a non-magnetic material 3', and a main pole member 8 made of a soft magnetic material having a 1-turn lIA groove. A core 6 and a recording/reproducing coil 7 shaped in advance with adhesive are prepared, and then the coil 7 is first inserted into the winding groove 5 of the back core 6 and fixed with adhesive. It is formed by joining with the magnetic pole member.
したがってコイル７の巻線状態はもとより、巻線位置も
規制することが可能であり、更には巻線工程も極めて簡
略化できる。Therefore, it is possible to control not only the winding state of the coil 7 but also the winding position, and furthermore, the winding process can be extremely simplified.
６はバックコア、７はコイルである。非磁性体３．３′
は例えば、ガラスまたはセラミックスで構成され、この
非磁性体３には軟磁性フェライト等よりなる磁気導入部
４がガラス溶着（または樹脂接着）等により接合され、
非磁性体３′の側面にはスパッタ等によりパーマロイま
たはアモルファス等の高透磁率薄膜２が施され、該膜の
面と。6 is a back core, and 7 is a coil. Non-magnetic material 3.3'
is made of, for example, glass or ceramics, and a magnetic introduction part 4 made of soft magnetic ferrite or the like is joined to this non-magnetic material 3 by glass welding (or resin adhesion) or the like.
A high magnetic permeability thin film 2 of permalloy or amorphous is applied to the side surface of the non-magnetic material 3' by sputtering or the like.
非磁性体３と磁気導入部４との共通の側面とが樹脂接着
により接合されている。軟磁性フェライト等よりなるバ
ックコア６には、巻線溝５が穿設され、該溝にはコイル
７が巻回（予めリング状に形成したコイル７をコア先端
部８に嵌合してもよい）され、バックコア６の上記巻組
溝５により除かれて残った部分、即ちコア先端部８とリ
ターンパス部１０のうち、コア先端部８の先端は磁気導
入部４の端面に、リターンパス部１０の先端は非磁性体
３，３′に樹脂接着により接合されている。A common side surface of the non-magnetic material 3 and the magnetism introduction part 4 is joined by resin adhesion. A winding groove 5 is bored in the back core 6 made of soft magnetic ferrite, etc., and a coil 7 is wound in the groove (even if the coil 7 formed in a ring shape is fitted to the core tip 8). Of the remaining portion of the back core 6 removed by the winding groove 5, that is, the core tip 8 and the return path portion 10, the tip of the core tip 8 is connected to the end surface of the magnetic introduction portion 4, and the return path portion 8 is The ends of the pass portions 10 are bonded to the nonmagnetic materials 3, 3' by resin adhesive.
尚、上記高透磁率薄膜２を非磁性体３と磁気導入部４と
の共通の面に施し、非磁性体３′を接合して、第１図（
ａ）のヘッドが得られる。尚、図では媒体１と薄膜２（
ヘッド先端）とが離れているが、媒体１がテープのとき
は記録・再生時には周知のように接触し。The high magnetic permeability thin film 2 is applied to the common surface of the non-magnetic material 3 and the magnetism introduction part 4, and the non-magnetic material 3' is bonded to the non-magnetic material 3'.
The head of a) is obtained. In addition, in the figure, medium 1 and thin film 2 (
However, when the medium 1 is a tape, they come into contact with each other during recording and playback, as is well known.
上記本発明によれば、巻線状態、巻線位置が安定化され
、かつ巻線工程を簡略化できる垂直記録用磁気ヘッドを
提供することができる。According to the present invention, it is possible to provide a perpendicular recording magnetic head in which the winding state and the winding position are stabilized and the winding process is simplified.
第１図（ａ）は本発明の実施例における垂直記録用磁気
ヘッドの断面図、第１図（ｂ）は本発明の実施例の構成
を示す図、第２図は従来の垂直記録用磁気ヘッドの断面
図である。
１・・・記録媒体 ２・・・高透磁率薄膜３．
３′・・・非磁性体 ４・・・軟磁性体コア５．５′
・・・巻線溝 ６・・・バックコア７・・・コイル
８・・・主磁極部材Ｓ・・・非磁性体基板FIG. 1(a) is a sectional view of a perpendicular recording magnetic head in an embodiment of the present invention, FIG. 1(b) is a diagram showing the configuration of the embodiment of the present invention, and FIG. 2 is a conventional perpendicular recording magnetic head. FIG. 3 is a cross-sectional view of the head. 1... Recording medium 2... High magnetic permeability thin film 3.
3'...Nonmagnetic material 4...Soft magnetic core 5.5'
...Winding groove 6...Back core 7...Coil 8...Main magnetic pole member S...Nonmagnetic substrate
Claims (1)
材と巻線溝を設けた軟磁性体から構成されたバックコア
から成り、該バックコアを上記主磁極部材の後面に接合
して形成される垂直記録用磁気ヘッドにおいて、バック
コアの巻線溝にあらかじめ巻線が挿入されかつ固定され
ていることを特徴とする垂直記録用磁気ヘッド。It consists of a main pole member having a high magnetic permeability thin film on the side closer to the recording medium and a back core made of a soft magnetic material with winding grooves, and is formed by joining the back core to the rear surface of the main pole member. 1. A perpendicular recording magnetic head characterized in that a winding is inserted and fixed in advance into a winding groove of a back core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6258785A JPS61222007A (en) | 1985-03-27 | 1985-03-27 | Magnetic head for vertical recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6258785A JPS61222007A (en) | 1985-03-27 | 1985-03-27 | Magnetic head for vertical recording |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61222007A true JPS61222007A (en) | 1986-10-02 |
Family
ID=13204600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6258785A Pending JPS61222007A (en) | 1985-03-27 | 1985-03-27 | Magnetic head for vertical recording |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61222007A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990056215A (en) * | 1997-12-29 | 1999-07-15 | 윤종용 | Coil winding method of magnetic head |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS619813A (en) * | 1984-06-25 | 1986-01-17 | Fujitsu Ltd | Production for vertical magnetic recording head |
| JPS6190309A (en) * | 1984-10-09 | 1986-05-08 | Alps Electric Co Ltd | Magnetic head for vertical magnetic recording |
-
1985
- 1985-03-27 JP JP6258785A patent/JPS61222007A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS619813A (en) * | 1984-06-25 | 1986-01-17 | Fujitsu Ltd | Production for vertical magnetic recording head |
| JPS6190309A (en) * | 1984-10-09 | 1986-05-08 | Alps Electric Co Ltd | Magnetic head for vertical magnetic recording |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990056215A (en) * | 1997-12-29 | 1999-07-15 | 윤종용 | Coil winding method of magnetic head |
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