JPH02105314A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPH02105314A JPH02105314A JP25761288A JP25761288A JPH02105314A JP H02105314 A JPH02105314 A JP H02105314A JP 25761288 A JP25761288 A JP 25761288A JP 25761288 A JP25761288 A JP 25761288A JP H02105314 A JPH02105314 A JP H02105314A
- Authority
- JP
- Japan
- Prior art keywords
- head
- magnetic
- terminal
- coil bobbin
- 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.)
- Pending
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 239000010408 film Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- G11B5/10—Structure or manufacture of housings or shields for heads
-
- 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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
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」
この発明は、磁性膜」二に磁気遮蔽膜が形成された磁気
カート等の磁気記録媒体から情報を読み取る磁気ヘッド
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 that reads information from a magnetic recording medium such as a magnetic cart having a magnetic shielding film formed on a magnetic film.
［−従来の技術」
従来、」１記のような磁気カード等の磁気記録媒体に記
録された情報を読み取る磁気ヘッドとじて第６図に示す
ものが知られている。この図に示す磁気ヘッドは、フロ
ント側にギャップが設けられたリング型のコアＩに、再
生用コイル２の他に、磁気飽和用コイル３を巻回し、こ
の磁気飽和用コイル３に電流を流すことにより、磁気記
録媒体の磁気遮蔽膜に磁界をかけて磁気飽和させ、その
状態で磁性膜に記録された情報を読み取るようにしたも
のである。[-Prior Art] Conventionally, a magnetic head shown in FIG. 6 is known as a magnetic head for reading information recorded on a magnetic recording medium such as a magnetic card as described in 1. In the magnetic head shown in this figure, a magnetic saturation coil 3 is wound in addition to a reproduction coil 2 around a ring-shaped core I with a gap on the front side, and a current is passed through the magnetic saturation coil 3. In this way, a magnetic field is applied to the magnetic shielding film of the magnetic recording medium to achieve magnetic saturation, and information recorded on the magnetic film is read in this state.
ところで、近年、磁気ヘッドの小型化、記録密度の向」
二等の要求に伴い、これを実現できるものとして、種々
の薄膜磁気ヘッドが開発されつつある。この薄膜磁気ヘ
ッドの一つに磁束の大きさに応答する磁気抵抗効果を利
用した磁気抵抗ヘット（ＭＲヘット）がある。そこで、
このＭＲヘッドを利用して上記のような磁気遮蔽膜が形
成された磁気記録媒体に記録された情報を読み取る磁気
ヘットとして、」二足コアＩのギャップにＭＲヘッドを
設けろと共に、コアＩに磁気飽和用コイル３を巻回した
ものが考えられる。By the way, in recent years, magnetic heads have become smaller and recording density has increased.
In response to the demand for the second class, various thin film magnetic heads are being developed to meet this demand. One of these thin film magnetic heads is a magnetoresistive head (MR head) that utilizes a magnetoresistive effect that responds to the magnitude of magnetic flux. Therefore,
As a magnetic head that uses this MR head to read information recorded on a magnetic recording medium on which a magnetic shielding film as described above is formed, an MR head is installed in the gap between the two-legged core I, and a magnetic head is attached to the core I. A structure in which the saturation coil 3 is wound may be considered.
「発明が解決しようとする課題」
しかしながら、このような磁気ヘッドを製作する場合、
以下のような問題点が生じる。"Problem to be solved by the invention" However, when manufacturing such a magnetic head,
The following problems arise.
すなわち、コア１のギャップに設けるＭＲヘッドは非常
に小さなものであり、しかもコア１の内部空間も非常に
狭く、さらに、コア１の側部がンールドケースにより覆
われるので、複数のリード線をＭＲヘッドに結線するの
が困難である。That is, the MR head installed in the gap of the core 1 is very small, and the internal space of the core 1 is also very narrow.Furthermore, the sides of the core 1 are covered by the rolled case, so multiple lead wires are connected to the MR head. It is difficult to connect to the
また、コア１には磁気飽和用コイル３が巻回されている
ので、複数のリード線を磁気飽和用コイル３を避けてＭ
Ｒヘッドに接続しなければならず、このため、ＭＲヘッ
ドへのリード線の結線がさらに困難になると共に内部構
造が複雑になる。Also, since the magnetic saturation coil 3 is wound around the core 1, the multiple lead wires are connected to the
It has to be connected to the R head, which makes connecting the lead wires to the MR head more difficult and complicates the internal structure.
１課題を解決するための手段」
上記課題を解決するために、この発明の磁気ヘッドは、
一対のコアブロックを突き合わせてなる磁気コアのフロ
ントギャップ間に磁気抵抗ヘッドを設け、この磁気抵抗
ヘッドに対向する磁気コアの壁部にコイルボビンを設け
、このコイルボビンに磁気抵抗ヘッド用端子を設け、こ
の磁気抵抗へ・ンド用端子と上記磁気抵抗ヘッドとを直
接接続したものである。1. Means for Solving the Problems In order to solve the above problems, the magnetic head of the present invention has the following features:
A magnetoresistive head is provided between the front gap of a magnetic core formed by butting a pair of core blocks, a coil bobbin is provided on the wall of the magnetic core facing this magnetoresistive head, a terminal for the magnetoresistive head is provided on this coil bobbin, and a magnetoresistive head terminal is provided on the coil bobbin. The magnetoresistive terminal is directly connected to the magnetoresistive head.
「作用 −１
この発明の磁気ヘッドにあっては、コイルボビンに設け
られた磁気抵抗ヘッド用端子と磁気コアに設けられた磁
気抵抗ヘッドとを直接接続したので、磁気抵抗ヘットと
磁気抵抗ヘッド用端子とをリード線で結線する必要がな
く、よって組立を容易にかつ組立工数を低減でき、しか
も内部構造を簡単にすることができる。Effect-1 In the magnetic head of the present invention, the magnetoresistive head terminal provided on the coil bobbin and the magnetoresistive head provided on the magnetic core are directly connected, so that the magnetoresistive head and the magnetoresistive head terminal are directly connected. There is no need to connect the two with lead wires, which facilitates assembly and reduces the number of assembly steps, as well as simplifying the internal structure.
「実施例」
第１図ないし第３図はこの発明の磁気ヘッドの第一実施
例を示すものであり、図において符号１０は磁気コアを
示す。この磁気コア１０は一対のコアブ〔ノック１１．
１２を突き合わせてなるリング状のものであり、フロン
ト側の対向面間にはフロントギャップＧが形成されてい
る。このフロントギャップＧには磁気抵抗ヘッド（ＭＲ
ヘッド）１３か設置Ｊられている。このＭＲヘッド１３
は、フェライト等からなる基板＋３ａ上にギャップ板１
３ｂ。Embodiment FIGS. 1 to 3 show a first embodiment of the magnetic head of the present invention, and in the figures, reference numeral 10 indicates a magnetic core. This magnetic core 10 has a pair of cores [knocks 11.
12 butted against each other, and a front gap G is formed between the opposing surfaces on the front side. This front gap G has a magnetoresistive head (MR).
Head) 13 is installed. This MR head 13
is a gap plate 1 on a substrate +3a made of ferrite etc.
3b.
センダスト、パーマロイ等からなるＭＲ素子Ｉ３ｃ１ス
ライダ＋３ｄを順次積層したものであり、基板＋３ａと
スライダ＋３ｄがそれぞれ上記フロント側の対向面に接
しかつ基板１３ａの後端部が磁気コアＩＯ内に突出して
いる。The MR element I3c1 slider +3d made of sendust, permalloy, etc. is sequentially laminated, and the substrate +3a and the slider +3d are in contact with the opposing surfaces on the front side, respectively, and the rear end of the substrate 13a protrudes into the magnetic core IO. .
上記ＭＲヘッド１３に対向する磁気コアＩＯの壁部１０
ａには、コイルボビン１５が取り付けられており、この
コイルボビン１５には磁気飽和用コイル１６が巻回され
ている。また、コイルボビン１５の両側の鍔部１５ａ、
１５ａには端子１７．１７が固定されており、この端子
１７．．１７には磁気飽和用コイル１６を構成する巻線
の両端部がそれぞれ接続されている。さらに、コイルボ
ビン１５の中央部の鍔部１５ｂには複数のＭＲヘッド用
端子Ｉ８・が鍔部１５ｂを貫通すると共に、上記壁部］
Ｏａに形成された溝１９・・・を通して設けられている
。これらＭＲヘッド用端子１８・・の先端部は上記ＭＲ
ヘッド１３の基板１３ａに半田付により接続されている
。Wall portion 10 of the magnetic core IO facing the MR head 13
A coil bobbin 15 is attached to a, and a magnetic saturation coil 16 is wound around the coil bobbin 15. Furthermore, the flanges 15a on both sides of the coil bobbin 15,
A terminal 17.17 is fixed to the terminal 15a. ．． Both ends of the winding forming the magnetic saturation coil 16 are connected to the magnetic saturation coil 17 . Furthermore, a plurality of MR head terminals I8 pass through the flange 15b at the center of the coil bobbin 15, and the wall portion]
It is provided through the groove 19 formed in Oa. The tips of these MR head terminals 18...
It is connected to the substrate 13a of the head 13 by soldering.
このように、ＭＲヘッドＩ３、コイルボビン１５等が装
着された磁気コアＩＯはホールドケース１９に挿入され
、さらにこのホールドケース１９はアース板２０を介し
てソールドケース２１に挿入されている。In this way, the magnetic core IO to which the MR head I3, coil bobbin 15, etc. are attached is inserted into the hold case 19, and this hold case 19 is further inserted into the sold case 21 via the ground plate 20.
上記構成の磁気ヘッドによれば、ＭＲヘッド１３に対向
ずろ磁気コア１０の壁部１０ａに設けられたコイルボビ
ン１５にＭＲヘッド用端子１８を設け、このＭＲヘッド
用端子１８とＭＲ抵抗ヘツ１’ ＋ ３とを直接接続し
たので、ＭＲヘッド１３と１ＶｆＲヘツド用端子１８と
をリード線で結線する必要がなく、よって組立を容易に
かつ組立工数を低減でき、しかも内部構造を簡単にする
ことができる。According to the magnetic head having the above configuration, the MR head terminal 18 is provided on the coil bobbin 15 provided on the wall 10a of the opposing staggered magnetic core 10 in the MR head 13, and the MR head terminal 18 and the MR resistor connection 1'+ Since the MR head 13 and the 1VfR head terminal 18 are directly connected to each other, there is no need to connect the MR head 13 and the 1VfR head terminal 18 with lead wires, which facilitates assembly and reduces the number of assembly steps, as well as simplifying the internal structure. .
第４図および第５図はこの発明の第二実施例を示すもの
であり、これらの図において第１図ないし第３図に示す
構成要素と同一の要素については同一符号を付してその
説明を省略する。Figures 4 and 5 show a second embodiment of the present invention, and in these figures, the same elements as those shown in Figures 1 to 3 are designated by the same reference numerals, and their explanations are omitted.
磁気コア１０のＭＲヘッド１３に対向する壁部にはコイ
ルボビン２５が取り付けられている。このコイルボビン
２５の胴部２５ａの両端部には一対の鍔部２５ｂ、２５
ｂが固定されている。一方の鍔部２５ａには端子２６．
２６が固定されており、この端子２６．２６には胴部２
５ａに巻回された磁気飽和用コイル２７の巻線の両端部
がそれぞれ接続されている。また、他方の鍔部２５ａに
は複数のＭＲヘッド用端子２８・・・が鍔部２５ａと」
１記壁部を貫通して設けられている。これらＭＦｔヘッ
ド用端子１８・・の先端部は」二記ＭＲヘッド１３の基
板＋３ａに半田付により接続されている。A coil bobbin 25 is attached to a wall portion of the magnetic core 10 facing the MR head 13 . A pair of flanges 25b, 25 are provided at both ends of the body 25a of the coil bobbin 25.
b is fixed. One flange 25a has a terminal 26.
26 is fixed, and the body 2 is attached to this terminal 26.26.
Both ends of the winding of the magnetic saturation coil 27 wound around the magnetic saturation coil 5a are connected to each other. In addition, a plurality of MR head terminals 28 are connected to the other flange 25a.
1. It is provided to penetrate the wall part. The tips of these MFt head terminals 18 are connected to the substrate +3a of the MR head 13 by soldering.
そして、ＭＲヘッド１３、コイルボビン２５等が装着さ
れた磁気コアｌＯは、第一実施例と同様に、ホールドケ
ース１９、アース板２０を介してシールドケース２１に
挿入されている。The magnetic core lO to which the MR head 13, coil bobbin 25, etc. are attached is inserted into the shield case 21 via the hold case 19 and the ground plate 20, as in the first embodiment.
上記構成の磁気ヘッドによれば、第一実施例と同様の効
果の他、コイルボビン２５が一対の鍔部２５ａ、２５ａ
を有しており、第一実施例のコイルボビン１５より鍔部
の数が少ないので、コイルボビン２５の厚さを薄くする
ことができ、磁気ヘッドの小型化を図ることができる。According to the magnetic head having the above configuration, in addition to the same effects as in the first embodiment, the coil bobbin 25 has a pair of flanges 25a, 25a.
Since the number of flanges is smaller than that of the coil bobbin 15 of the first embodiment, the thickness of the coil bobbin 25 can be made thinner, and the size of the magnetic head can be reduced.
「発明の効果」
以上説明したように、この発明の磁気ヘッドによれば、
磁気抵抗ヘッドに対向する磁気コアの壁部に設けられた
コイルボビンに磁気抵抗ヘッド用端子を設け、この磁気
抵抗ヘッド用端子と磁気抵抗ヘッドとを直接接続したの
で、磁気抵抗ヘッドと磁気抵抗ヘッド用端子とをリード
線で結線する必要がなく、よって組立を容易にかつ組立
工数を低減でき、しかも内部構造を簡単にすることがで
きる。"Effects of the Invention" As explained above, according to the magnetic head of the present invention,
A magnetoresistive head terminal is provided on the coil bobbin provided on the wall of the magnetic core facing the magnetoresistive head, and the magnetoresistive head terminal and the magnetoresistive head are directly connected. There is no need to connect the terminals with lead wires, so assembly can be facilitated, the number of assembly steps can be reduced, and the internal structure can be simplified.
第１図ないし第３図はこの発明の磁気コアの第一実施例
を示すものであり、第１図は磁気コアの斜視図、第２図
は縦断面図、第３図は側断面図、第４図および第５図は
第二実施例を示すものであり、第４図は磁気コアの斜視
図、第５図は要部の断面図、第６図は従来の磁気ヘッド
の概略構成図である。
１０・・磁気コア、１１・・・・・コアブロック、１２
・・・・・コアブロック、
１３・・・・・・ＭＲヘッド（磁気抵抗ヘッド）、１５
．２５・・・・コイルボビン、
１８．２８・・・・ＭＲヘッド用端子（磁気抵抗ヘッド
用端子）。1 to 3 show a first embodiment of the magnetic core of the present invention, in which FIG. 1 is a perspective view of the magnetic core, FIG. 2 is a vertical sectional view, and FIG. 3 is a side sectional view. 4 and 5 show the second embodiment, in which FIG. 4 is a perspective view of the magnetic core, FIG. 5 is a sectional view of the main part, and FIG. 6 is a schematic configuration diagram of a conventional magnetic head. It is. 10...Magnetic core, 11...Core block, 12
... Core block, 13 ... MR head (magnetoresistive head), 15
．． 25... Coil bobbin, 18.28... MR head terminal (magnetoresistive head terminal).
Claims (1)
ントギャップ間に磁気抵抗ヘッドを設け、この磁気抵抗
ヘッドに対向する磁気コアの壁部にコイルボビンを設け
、このコイルボビンに磁気抵抗ヘッド用端子を設け、こ
の磁気抵抗ヘッド用端子と上記磁気抵抗ヘッドとを直接
接続したことを特徴とする磁気ヘッド。A magnetoresistive head is provided between the front gap of a magnetic core formed by butting a pair of core blocks, a coil bobbin is provided on the wall of the magnetic core facing this magnetoresistive head, a terminal for the magnetoresistive head is provided on this coil bobbin, and a magnetoresistive head terminal is provided on the coil bobbin. A magnetic head characterized in that a terminal for a magnetoresistive head and the magnetoresistive head described above are directly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25761288A JPH02105314A (en) | 1988-10-13 | 1988-10-13 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25761288A JPH02105314A (en) | 1988-10-13 | 1988-10-13 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02105314A true JPH02105314A (en) | 1990-04-17 |
Family
ID=17308683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25761288A Pending JPH02105314A (en) | 1988-10-13 | 1988-10-13 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02105314A (en) |
-
1988
- 1988-10-13 JP JP25761288A patent/JPH02105314A/en active Pending
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