JPH04167204A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPH04167204A JPH04167204A JP29240290A JP29240290A JPH04167204A JP H04167204 A JPH04167204 A JP H04167204A JP 29240290 A JP29240290 A JP 29240290A JP 29240290 A JP29240290 A JP 29240290A JP H04167204 A JPH04167204 A JP H04167204A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- core
- winding
- cores
- coil winding
- 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
- 238000004804 winding Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004840 adhesive resin Substances 0.000 abstract description 3
- 229920006223 adhesive resin Polymers 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- 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、磁気記録媒体に情報を記録又は消去したり、
あるいは磁気記録媒体から情報を読み出したりする磁気
記録再生装置に用いられる磁気ヘッドに関するものであ
る。[Detailed Description of the Invention] Industrial Application Field The present invention is applicable to recording or erasing information on a magnetic recording medium,
Alternatively, the present invention relates to a magnetic head used in a magnetic recording/reproducing device that reads information from a magnetic recording medium.
従来の技術
近年、磁気記録再生装置が情報処理分野に広く普及発展
し、その発展に伴いフロッピィディスク装置の高密度化
、及び高信頼性が要求され、それに併せて高機能を有す
る磁気ヘッドも種々開発されている。BACKGROUND OF THE INVENTION In recent years, magnetic recording and reproducing devices have become widespread in the information processing field, and with this development, floppy disk devices are required to have higher density and higher reliability. being developed.
以下、従来の磁気ヘッドについて説明する。A conventional magnetic head will be explained below.
第３図（イ）は、従来の磁気ヘッド、特に消去ヘッドの
シールドカバーを除いた部分の斜視図であり、第３図（
ロ）はその要部断面図である。１ａ、ｌｂはそれぞれフ
ェライト等の酸化物磁性材料によって構成された第１、
第２コア、２ａ、２ｂ、２ａ’、２ｂ’は各々コアｌａ
、ｌｂの、媒体対向面及びコア対向面で、媒体対向面は
ギャップ材を介し、コア対向面は直接接合されている。FIG. 3(a) is a perspective view of a conventional magnetic head, particularly an erasing head, excluding the shield cover.
B) is a sectional view of the main part. 1a and lb are first, respectively, made of an oxide magnetic material such as ferrite;
The second cores 2a, 2b, 2a', 2b' are each core la
, lb, the medium facing surface and the core facing surface are bonded to each other directly, with the medium facing surface being joined via a gap material, and the core facing surface being directly joined.
３は金属材料又は非金属材料等の非磁性物から成る磁気
ギャップ材、４はコイルであって、コア１ａ、ｌｂに磁
界を発生させるため巻回されている。５は中継端子板で
あって、コイル４は中継端子板５を介して外部から信号
を人力される。６はコアｌａ、ｌｂの位置決めを行うと
ともに中継端子板５の取り付けも兼ねた取り付は台座、
７はコア１ａ、１ｂ及び中継端子板５に対し、外部から
の衝撃や外部ノイズ、異物との接触を防ぐシールドカバ
ー、８はコア１に設けられたコイル巻回部、９はコアの
エツジ部、１１はコイルによる巻線を一定の場所に行い
、コアｌのエツジ部９による絶縁不良を防ぐだめのボビ
ンである。3 is a magnetic gap material made of a non-magnetic material such as a metal material or a non-metallic material, and 4 is a coil, which is wound around the cores 1a and lb to generate a magnetic field. 5 is a relay terminal board, and the coil 4 receives a signal from the outside via the relay terminal board 5. 6 is a mounting pedestal that positions the cores la and lb and also serves as a mounting base for the relay terminal board 5;
7 is a shield cover that protects the cores 1a, 1b and the relay terminal board 5 from external impact, external noise, and contact with foreign objects; 8 is a coil winding portion provided on the core 1; 9 is an edge portion of the core. , 11 is a bobbin for winding the coil at a fixed location to prevent insulation failure due to the edge portion 9 of the core l.
発明が解決しようとする課題 しかしなから上記従来の構成では、コアｌａ。Problems that the invention aims to solve However, in the above conventional configuration, the core la.
Ｉｂとギャップ材３の接着には、エポキシ樹脂等の接着
樹脂を使用するが、一般にコア対向面２ａ、２ｂとギャ
ップ材３の間に塗布した前記樹脂か、接着作業中にコア
ｌのコイル巻回部８まで流出して硬化し巻線か不可能と
なり生産性を落とすという問題があった。また、巻線を
行った際、コイル４が、コア１のコイル巻回部８のエツ
ジ部９でコイル４の絶縁皮膜を破る場合があるため、エ
ツジ部９を面取り加工等の後加工を施したり、絶縁用テ
ープを張る等の作業が必要で、作業上、生産性上問題が
あった。An adhesive resin such as an epoxy resin is used to bond Ib and the gap material 3, but generally the resin applied between the core facing surfaces 2a, 2b and the gap material 3 is used, or the coil winding of the core L is applied during the bonding process. There was a problem in that it leaked to the winding part 8 and hardened, making it impossible to wind the wire and reducing productivity. In addition, when winding the coil 4, the insulation coating of the coil 4 may be broken at the edge part 9 of the coil winding part 8 of the core 1, so the edge part 9 may be subjected to post-processing such as chamfering. This posed problems in terms of work and productivity, as it required work such as attaching insulation tape and applying insulating tape.
課題を解決するための手段
本発明は、第１コア、第２コアの接合面であってギヤツ
ブ部対向面に形成されるコイル巻回部にコイル巻線方向
と平行に中空状のコイル保護部材を設けるようにしたも
のである。Means for Solving the Problems The present invention provides a coil protection member having a hollow shape parallel to the coil winding direction in the coil winding portion formed on the joint surface of the first core and the second core and facing the gear portion. It was designed to provide a.
作用
上記構成により、コアの巻回部を接着樹脂等で塞ぐこと
がなく、また、コイルによるコイル巻回部のエツジの面
取り加工もしくは、絶縁対策の部材を設ける必要がなく
なる。Effects With the above configuration, the winding portion of the core is not covered with adhesive resin or the like, and there is no need to chamfer the edges of the coil winding portion or provide an insulating member.
実施例
第１図及び第２図はそれぞれ本発明の一実施例における
磁気ヘッドを示す分解斜視図及び断面図である。Ｉａ、
ｌｂはそれぞれ第１、第２コア、２ａ、２ａ’ 、２ｂ
、２ｂ’はそれぞれコアの対向面、３はギャップ材、４
はコイル、５は中継端子板、６は取り付は台、７はシー
ルドカバー、８はコイル巻回部、９はエツジ部、１１は
ボビンてこれらは従来例と同様のものであるので、同一
の番号を付し説明を省略する。ｌＯは空洞のチューブ等
からなる中空状のコイル保護部材、中空部を貫くように
コイル４による巻線が行われている。Embodiment FIGS. 1 and 2 are an exploded perspective view and a sectional view, respectively, showing a magnetic head in an embodiment of the present invention. Ia,
lb are the first and second cores, 2a, 2a', and 2b, respectively.
, 2b' are the opposing surfaces of the core, 3 is the gap material, and 4 is the opposing surface of the core.
is a coil, 5 is a relay terminal board, 6 is a mounting base, 7 is a shield cover, 8 is a coil winding part, 9 is an edge part, 11 is a bobbin, and these are the same as the conventional example. The number will be given and the explanation will be omitted. IO is a hollow coil protection member made of a hollow tube or the like, and a coil 4 is wound so as to penetrate through the hollow portion.
中空状のコイル保護部材ｌＯの長さは前記コアＩａ、１
ｂの幅より長く設けるのが好ましい。The length of the hollow coil protection member IO is the core Ia, 1
It is preferable to provide the width longer than the width b.
以上のように構成された磁気ヘッドについて、以下その
製造方法を説明する。A method of manufacturing the magnetic head configured as described above will be described below.
まず第１コアＩａ、第２コアｌｂをギャップ材３を介し
て接合し、同時に軟質の空洞のチューブ等からなるコイ
ル保護部材１０をコイル巻回部８へ挿入し接着剤で固定
する。接合の際、塗布したエポキシ樹脂等の接着剤が流
れ出しコイル保護部材１０に到達することにより、エポ
キシ樹脂の硬化が進行し、コアＩａ、１ｂにコイル保護
部材ＩＯの固定がなされる。このときコイル保護部材ｌ
Ｏはコアｌａ、ｌｂより長いのでコアｌａ、ｌｂの両端
にコイル保護部材ｌＯの端部が突出して設けられる。次
にコイル保護部材ｌＯの中空部を通してコイル４の所定
数が巻線される。巻線が終了した後、コアＩａ、Ｉｂは
、取り付は台座６に媒体と所定の位置を保つように取り
付けられる。取り付けには、接着剤としてエポキシ樹脂
等が用いられる。また、取り付は台座６には、中継端子
板５を取り付け、コイル４の巻始部と巻終部を中継端子
板５の所定の箇所に半田付けする。First, the first core Ia and the second core lb are joined via the gap material 3, and at the same time, a coil protection member 10 made of a soft hollow tube or the like is inserted into the coil winding portion 8 and fixed with an adhesive. During bonding, the applied adhesive such as epoxy resin flows out and reaches the coil protection member 10, so that the epoxy resin is cured and the coil protection member IO is fixed to the cores Ia and 1b. At this time, the coil protection member l
Since O is longer than the cores la and lb, the ends of the coil protection member lO are provided to protrude from both ends of the cores la and lb. Next, a predetermined number of coils 4 are wound through the hollow portion of the coil protection member IO. After the winding is completed, the cores Ia and Ib are attached to the pedestal 6 so as to maintain a predetermined position with respect to the medium. For attachment, epoxy resin or the like is used as an adhesive. Further, for installation, the relay terminal plate 5 is attached to the pedestal 6, and the winding start and end portions of the coil 4 are soldered to predetermined locations on the relay terminal plate 5.
第２図（イ）かられかるようにコアＩａ、ｌｂの接着の
ために塗布したエポキシ樹脂が、コアのコイル巻回部８
に流出してもコアｌａ、ｌｂの幅より空洞チューブの方
が長いため空洞チューブｌＯの空洞部は確保されコイル
４の巻線は可能となる。又、第２図（ロ）に示す様にコ
アのエツジ部９にコイル４が当接しないようにコイル保
護部材ｌＯの端部で保護するため、コイル４の絶縁皮膜
の破れによる絶縁不良を防ぐことができる。As shown in Figure 2 (a), the epoxy resin applied to bond the cores Ia and lb is applied to the coil winding portion 8 of the core.
Since the hollow tube is longer than the width of the cores la and lb, the hollow portion of the hollow tube lO is secured and the coil 4 can be wound. In addition, as shown in FIG. 2 (b), the coil 4 is protected by the end of the coil protection member 1O so that it does not come into contact with the edge 9 of the core, thereby preventing insulation failure due to breakage of the insulating film of the coil 4. be able to.
尚、本発明において消去ヘッドの場合について説明した
が、記録ヘッド及び再生ヘッドの場合においても、同様
の効果を得ることは言うまでもない。Although the present invention has been described with respect to the erasing head, it goes without saying that similar effects can be obtained in the case of recording heads and reproducing heads.
発明の効果
本発明は、′コアのコイル巻線部に中空状のコイル保護
部材を用いることにより、コア及びギャップ材の接着の
際の接着剤の流出によるコイル巻線部の塞ぎを防止する
ことができ、品質の向上を図るとともに生産性を大幅に
向上させる。また、コイル保護部材が、コアエツジ部の
絶縁保護の役割を果たすため従来のような面取り加工作
業が不用になるので、作業性か良くなるとともに生産性
を向上させる。Effects of the Invention The present invention uses a hollow coil protection member in the coil winding portion of the core to prevent the coil winding portion from being blocked due to outflow of adhesive when bonding the core and gap material. This not only improves quality but also greatly improves productivity. Further, since the coil protection member plays the role of insulating protection of the core edge portion, conventional chamfering work is no longer required, which improves workability and productivity.
第１図は本発明の一実施例における磁気ヘッドヘッドを
示す分解斜視図勅醇及び第３図（イ）Ｙ−Ｙ線断面図で
ある。
ｌａ、１ｂ−・・第１１第２コア
２ａ、２ａ’ 、２ｂ、２ｂ’−：１７（７）対向面３
・・・ギャップ材 １１・・・ボビン４・・・コイ
ル ５・・・中継端子板６・・・取り付は台座
７・・・シールドカバー８・・・コイル巻回部
９・・・エツジ部１０・・・コイル保護部材
代理人の氏名 弁理士 小蝦治 明 ほか２名第１図
（イ）
第 ３ 図 （イ）
鵞ｔ【FIG. 1 is an exploded perspective view showing a magnetic head according to an embodiment of the present invention, and FIG. 3 is a sectional view taken along the line Y--Y in FIG. la, 1b-...11th second core 2a, 2a', 2b, 2b'-: 17 (7) Opposing surface 3
... Gap material 11 ... Bobbin 4 ... Coil 5 ... Relay terminal board 6 ... Mounting is on pedestal 7 ... Shield cover 8 ... Coil winding part
9...Edge part 10...Name of agent for coil protection member Patent attorney Haruaki Koebi and two others Figure 1 (a) Figure 3 (a) Gooset [
Claims (1)
れる第２コアと、前記第１コアと前記第２コアの接合面
に巻回されるコイル巻回部とを有する磁気ヘッドであっ
て、前記コイル巻回部にコイル巻線方向と平行に配設さ
れた中空状のコイル保護部材を備えたことを特徴とする
磁気ヘッド。A magnetic head comprising a first core, a second core joined to the first core through a gap, and a coil winding part wound around a joint surface of the first core and the second core. A magnetic head characterized in that the coil winding portion is provided with a hollow coil protection member disposed parallel to the coil winding direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29240290A JPH04167204A (en) | 1990-10-29 | 1990-10-29 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29240290A JPH04167204A (en) | 1990-10-29 | 1990-10-29 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04167204A true JPH04167204A (en) | 1992-06-15 |
Family
ID=17781323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29240290A Pending JPH04167204A (en) | 1990-10-29 | 1990-10-29 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04167204A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110174416A1 (en) * | 2008-08-18 | 2011-07-21 | Sigma-Aldrich Co. | Valve assemblies |
-
1990
- 1990-10-29 JP JP29240290A patent/JPH04167204A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110174416A1 (en) * | 2008-08-18 | 2011-07-21 | Sigma-Aldrich Co. | Valve assemblies |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5497283A (en) | Magnetic head having coil bobbins separated from a terminal assembly | |
| JPH04167204A (en) | Magnetic head | |
| JPS61265712A (en) | Magnetic head | |
| JPH0316090Y2 (en) | ||
| JP3408597B2 (en) | Magnetic recording / reproducing device | |
| JP2692186B2 (en) | Method of manufacturing magnetic head device | |
| US5930081A (en) | Magnetic head holder having protrusion portions thermally fusion-bonded to a magnetic head core | |
| KR100193560B1 (en) | Video magnetic head | |
| JP2530617B2 (en) | Method of manufacturing magnetic head | |
| JPS58212618A (en) | Production of magnetic head | |
| JPH0525053Y2 (en) | ||
| JPH03296906A (en) | Magnetic head | |
| JP3300974B2 (en) | Magnetic head device | |
| JP3277269B2 (en) | Magnetic head | |
| JPS6346889Y2 (en) | ||
| JPS6339120A (en) | Magnetic head | |
| KR900003874Y1 (en) | Structure of unitary device formed of plural heads | |
| JPS6350767B2 (en) | ||
| JPH05298648A (en) | Magnetic head and its manufacture | |
| JPH04112508A (en) | Line filter | |
| JPH1153705A (en) | Production of magnetic head | |
| JPS62165715A (en) | Magnetic head | |
| JPH03250408A (en) | Magnetic head | |
| JPS62264411A (en) | Magnetic head core | |
| JPH03254408A (en) | Magnetic head |