JPS6338406Y2 - - Google Patents
Info
- Publication number
- JPS6338406Y2 JPS6338406Y2 JP9625680U JP9625680U JPS6338406Y2 JP S6338406 Y2 JPS6338406 Y2 JP S6338406Y2 JP 9625680 U JP9625680 U JP 9625680U JP 9625680 U JP9625680 U JP 9625680U JP S6338406 Y2 JPS6338406 Y2 JP S6338406Y2
- Authority
- JP
- Japan
- Prior art keywords
- core
- magnetic
- chip
- holder
- insulating frame
- 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
- 239000011162 core material Substances 0.000 description 49
- 229910000906 Bronze Inorganic materials 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Description
【考案の詳細な説明】
この考案はチツプコア（前部コア）をホルダコ
アで取り囲んだチツプコアブロツクと、コイルを
巻装したボデイコア（後部コア）とからなる磁気
ヘツドの改良に関する。[Detailed Description of the Invention] This invention relates to an improvement of a magnetic head consisting of a chip core block in which a chip core (front core) is surrounded by a holder core, and a body core (rear core) around which a coil is wound.
一般に、ホツト・プレス・フエライト（HPF）
や単結晶フエライト等をコア材料とする磁気ヘツ
ドは、チツプコアをホルダコアによつて取り囲ん
で固定し、これにコイルを巻装したボデイコアを
後方から当接させて組み立てる構造となつている
が、特にステレオ用で高感度、広帯域の磁気ヘツ
ド等では、チヤンネル間および外部に対するシー
ルド効果を良くするために、ホルダコアを高透磁
率HPFで作つてシールド板を兼ね、チツプコア
との間に硬質ガラスを充填してすき間を保つよう
にしたチツプコアブロツクが用いられる。 Generally, hot pressed ferrite (HPF)
A magnetic head whose core material is made of ferrite or single-crystal ferrite is assembled by surrounding and fixing a chip core with a holder core, which is then brought into contact with a body core wrapped with a coil from behind. For high-sensitivity, broadband magnetic heads, etc., in order to improve the shielding effect between channels and to the outside, the holder core is made of high permeability HPF, which also serves as a shield plate, and hard glass is filled between it and the chip core. A chip core block that maintains a gap is used.
このようにホルダコアが磁性材料で構成されて
いるチツプコアブロツクにおいては、ボデイコア
とホルダコアとが直接に接触することは許されな
い。そこで、ホルダコアとボデイコアとの間に磁
気的絶縁を施すことが必要となる。 In a chip core block in which the holder core is made of a magnetic material as described above, direct contact between the body core and the holder core is not allowed. Therefore, it is necessary to provide magnetic insulation between the holder core and the body core.
そのため従来は、燐青銅等の非磁性金属板で作
られた磁気絶縁フレームを、ホルダコアとボデイ
コアとの接合面間に介挿していた。 Therefore, conventionally, a magnetic insulating frame made of a non-magnetic metal plate such as phosphor bronze was inserted between the joint surfaces of the holder core and the body core.
しかしながら、磁気的絶縁の間隔は0.1〜0.15
mmと狭いので、非磁性金属板で作つたフレームで
は反りや捩れが発生し易く、実際の板厚より見か
け上の間隔が大きくなる。 However, the magnetic isolation spacing is 0.1-0.15
Since the width is narrow (mm), frames made of non-magnetic metal plates are prone to warping and twisting, and the apparent spacing becomes larger than the actual plate thickness.
その結果としてチツプコアとボデイコアとの接
合面積が減少し、再生効率の低下等、特性の劣下
が生じ易いという欠点があつた。また、一度曲つ
たものは使用できず、作業上の注意も必要であつ
た。 As a result, the bonding area between the chip core and the body core is reduced, resulting in a drawback that deterioration of characteristics such as a decrease in regeneration efficiency is likely to occur. In addition, once bent, it could not be used, and caution was required when working.
この考案は、上記の点に鑑みてなされたもの
で、磁気絶縁フレームを非磁性で柔軟性のある部
材とすることによつて、チツプコアとボデイコア
との接合面積の安定化をはかり、特性のバラツキ
を防ぐようにした磁気ヘツドを提供するものであ
る。 This idea was made in view of the above points, and by making the magnetic insulating frame a non-magnetic and flexible member, it is possible to stabilize the bonding area between the chip core and the body core, thereby eliminating variations in characteristics. The present invention provides a magnetic head that prevents this.
以下、添付図面を参照してこの考案の実施例を
説明する。 Embodiments of this invention will be described below with reference to the accompanying drawings.
第１図乃至第３図は、この考案による磁気ヘツ
ドを示し、第１図は側面図、第２図は平面図、第
３図は磁気絶縁フレームの正面図である。 1 to 3 show a magnetic head according to this invention, with FIG. 1 being a side view, FIG. 2 being a plan view, and FIG. 3 being a front view of the magnetic insulating frame.
第１図および第２図に示すように、チツプコア
ブロツク１は、ヘツドギヤツプを持つた２個のチ
ツプコア２と、この２個のチツプコア２間に挾ま
れたシールドコア３と、チツプコア２の外側を取
り囲んでいるホルダコア４とからなり、これらの
各コア間には硬質ガラス５が充填されてすき間を
保ち、チツプコア２、シールドコア３およびホル
ダコア４を一体化している。 As shown in FIGS. 1 and 2, the chip core block 1 includes two chip cores 2 each having a head gap, a shield core 3 sandwiched between the two chip cores 2, and an outer surface of the chip cores 2. The chip core 2, the shield core 3, and the holder core 4 are integrated by a hard glass 5 filled between each of these cores to maintain a gap.
Ｕ字形の２個のボデイコア６にはそれぞれコイ
ル７を巻装し、チツプコアブロツク１に後方から
突き合わせて磁気ヘツドを構成するが、チツプコ
アブロツク１とボデイコア６との間には第３図に
示す形状の磁気絶縁フレーム８を介挿する。な
お、ボデイコア６の前半部側面は、チツプコア２
の磁気絶縁フレーム８の後方に出た部分の側面に
直接密着して磁気回路を形成する。 A coil 7 is wound around each of the two U-shaped body cores 6, and the magnetic head is constructed by abutting against the chip core block 1 from the rear. However, between the chip core block 1 and the body core 6 there is a A magnetic insulating frame 8 having the shape shown is inserted. Note that the side surface of the front half of body core 6 is similar to chip core 2.
A magnetic circuit is formed by directly adhering to the side surface of the rearward portion of the magnetic insulating frame 8.
磁気絶縁フレーム８は、例えばポリアセタール
樹脂、ポリアミド樹脂のような熱可塑性樹脂、あ
るいはゴム系のクロロプレンゴム、シリコンゴム
等または紙等のような非磁性で柔軟性のある部材
によつて作る。 The magnetic insulating frame 8 is made of, for example, a thermoplastic resin such as polyacetal resin or polyamide resin, a rubber-based material such as chloroprene rubber, silicone rubber, or a non-magnetic and flexible member such as paper.
このように磁気絶縁フレーム８を柔軟性のある
部材にすることによつて、従来の燐青銅等の金属
材に比較して弾性係数が小さいので、反り、捻れ
等があつても、接合時にはチツプコア１及びボデ
イコア６の端面になじんで密着するので、その間
隔はフレーム８の板厚分のみとなる。 By making the magnetic insulating frame 8 a flexible member in this way, it has a smaller elastic modulus than conventional metal materials such as phosphor bronze, so even if there is warping or twisting, the chip core can be easily removed during bonding. 1 and the end surfaces of the body core 6, the distance between them is only the thickness of the frame 8.
したがつて、第２図に示すチツプコア２とボデ
イコア６との側面同志の接合距離ｌが減少するこ
とがなくなる。したがつて、両者の接合面積の安
定化を計ることができるので、特性のバラツキを
防ぐことができる。 Therefore, the bonding distance l between the side surfaces of the chip core 2 and the body core 6 shown in FIG. 2 does not decrease. Therefore, it is possible to stabilize the bonding area between the two, thereby preventing variations in characteristics.
また、磁気絶縁フレーム８の曲り等に注意せず
に磁気ヘツドの組立作業ができるので、作業性が
向上する。さらに、製品外観上着色が必要な場
合、従来の燐青銅等の金属材では、メツキ、塗装
等によらなければならなかつたが、この考案によ
れば樹脂等の成形材そのものが着色されているも
のを使用すれば良いので、コスト的にも有利であ
る。 Further, since the magnetic head can be assembled without paying attention to the bending of the magnetic insulating frame 8, work efficiency is improved. Furthermore, if coloring is required for the appearance of the product, conventional metal materials such as phosphor bronze must be plated or painted, but with this invention, the molded material itself, such as resin, can be colored. It is also advantageous in terms of cost since it is only necessary to use the same materials.
第１図は、この考案の一実施例を示す側面図、
第２図は同じくその平面図、第３図は磁気絶縁フ
レームの正面図である。
１……チツプコアブロツク、２……チツプコ
ア、３……シールドコア、４……ホルダコア、５
……硬質ガラス、６……ボデイコア、７……コイ
ル、８……磁気絶縁フレーム。
FIG. 1 is a side view showing an embodiment of this invention;
FIG. 2 is a plan view thereof, and FIG. 3 is a front view of the magnetic insulating frame. 1... Chip core block, 2... Chip core, 3... Shield core, 4... Holder core, 5
...Hard glass, 6...Body core, 7...Coil, 8...Magnetic insulation frame.
Claims (1)
アブロツクと、コイルを巻装したボデイコアとか
らなる磁気ヘツドにおいて、前記ホルダコアとボ
デイコアとの間に、非磁性であつてかつ柔軟性の
ある部材を介挿したことを特徴とする磁気ヘツ
ド。 In a magnetic head consisting of a chip core block in which a chip core is surrounded by a holder core, and a body core around which a coil is wound, a non-magnetic and flexible member is inserted between the holder core and the body core. Features a magnetic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9625680U JPS6338406Y2 (en) | 1980-07-10 | 1980-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9625680U JPS6338406Y2 (en) | 1980-07-10 | 1980-07-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5722828U JPS5722828U (en) | 1982-02-05 |
| JPS6338406Y2 true JPS6338406Y2 (en) | 1988-10-11 |
Family
ID=29458090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9625680U Expired JPS6338406Y2 (en) | 1980-07-10 | 1980-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6338406Y2 (en) |
-
1980
- 1980-07-10 JP JP9625680U patent/JPS6338406Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5722828U (en) | 1982-02-05 |
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