JPH0114990Y2 - - Google Patents
Info
- Publication number
- JPH0114990Y2 JPH0114990Y2 JP16834682U JP16834682U JPH0114990Y2 JP H0114990 Y2 JPH0114990 Y2 JP H0114990Y2 JP 16834682 U JP16834682 U JP 16834682U JP 16834682 U JP16834682 U JP 16834682U JP H0114990 Y2 JPH0114990 Y2 JP H0114990Y2
- Authority
- JP
- Japan
- Prior art keywords
- core
- resin
- chip
- body core
- magnetic head
- 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
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000000465 moulding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Magnetic Heads (AREA)
Description
【考案の詳細な説明】
この考案は樹脂によつて封止されたボデイコア
と、作動ギヤツプを有するチツプコアを接合して
成る磁気ヘツドに関するものである。[Detailed Description of the Invention] This invention relates to a magnetic head formed by joining a body core sealed with resin and a chip core having an operating gap.
従来、磁気ヘツドの構造に関する考案は数多く
なされて来たが、その中で、作業能率の向上等を
計かつて、ボデイコア部を樹脂によつて一体成形
し、それをチツプコアと接合させるものが周知で
あつた。そこで、この種のものとして第１図及び
第２図に示すものがあつた。第１図及び第２図に
おいては、１は作動ギヤツプを有するチツプコ
ア、２はコイル３を有するフエライトのボデイコ
アでその端部が前記チツプコア１と接合する様に
構成されている。４は前記コア３と接続された端
子である。また、１ａは前記チツプコア１の間に
ガラス１ｂを介して固着されたシールドコアであ
る。尚、以下各図において、同一部分は同一符号
で統一する。従来では、上記したボデイコア２，
コイル３及び端子４を樹脂５によつて封止し一体
形成したものを前記チツプコア１と接合していた
が、金型成形時あるいは加工時の圧力に耐えるた
め、第１図及び第２図に示す様に、前記ボデイコ
ア２のチツプコア１と接合する先端部分まで樹脂
５で封止していた。 In the past, many ideas have been made regarding the structure of magnetic heads, but among them, one is well known in which the body core is integrally molded from resin and then joined to the chip core in order to improve work efficiency. It was hot. Therefore, as this type of device, there were those shown in FIGS. 1 and 2. In FIGS. 1 and 2, 1 is a chip core having an operating gap, and 2 is a ferrite body core having a coil 3, the end of which is connected to the chip core 1. 4 is a terminal connected to the core 3. Further, 1a is a shield core fixed between the chip cores 1 with a glass 1b interposed therebetween. In the following figures, the same parts are designated by the same reference numerals. Conventionally, the above-mentioned body core 2,
The coil 3 and terminal 4 were sealed with resin 5 and integrally formed and joined to the chip core 1, but in order to withstand the pressure during molding or processing, the parts shown in Figs. 1 and 2 are As shown, the tip of the body core 2 that joins with the chip core 1 was sealed with resin 5.
しかし、上記した様な構成のものでは、前記チ
ツプコア１との接合面が前記ボデイコア２を構成
するフエライトと前記樹脂５との複合面となつて
しまい、ボデイコア２と樹脂５の熱膨張係数の差
により温度変化の影響を受けるので接合部の安定
性が損なわれ、磁気ヘツド自体の能率やインピー
ダンスのバラツキが大となつてしまうおそれがあ
つた。 However, in the structure described above, the joint surface with the chip core 1 becomes a composite surface of the ferrite constituting the body core 2 and the resin 5, and the difference in thermal expansion coefficient between the body core 2 and the resin 5 results. Since the magnetic head is affected by temperature changes, the stability of the joint is impaired, and there is a risk that the efficiency and impedance of the magnetic head itself will vary greatly.
本考案は上記した従来のものの欠点を除去する
ためになされたもので、ボデイコア２のチツプコ
ア１と接合する先端部にテーパ状に樹脂を設け
て、チツプコア１との接合面をボデイコア２を構
成するフエライトのみとし、磁気ヘツド自体の能
率やインピーダンスのバラツキを防止することが
できる磁気ヘツドを提供することを目的としてい
る。 The present invention was made in order to eliminate the drawbacks of the conventional ones described above, and the body core 2 is formed by providing resin in a tapered shape at the tip of the body core 2 that joins with the chip core 1, so that the joint surface with the chip core 1 forms the body core 2. The object of the present invention is to provide a magnetic head that uses only ferrite and can prevent variations in efficiency and impedance of the magnetic head itself.
以下、本考案の一実施例を第３図及び第４図に
ついて説明する。第３図及び第４図において、
５′は第１図及び第２図における封止用の樹脂５
と同様な樹脂であるが、ここではボデイコア２の
チツプコア１と接合する先端部分の樹脂５を図の
如くテーパ状に設けた。この様に構成したので、
強度的にも充分であり、ボデイコア２のフエライ
トのみがチツプコア１と接合するので、従来のも
のの様に熱膨張係数の差によつて温度変化の影響
を受けることがない。 An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. In Figures 3 and 4,
5' is the sealing resin 5 in FIGS. 1 and 2.
Although the same resin is used, here, the resin 5 at the tip of the body core 2 that joins with the chip core 1 is provided in a tapered shape as shown in the figure. Since I configured it like this,
It has sufficient strength, and since only the ferrite of the body core 2 is bonded to the chip core 1, it is not affected by temperature changes due to differences in thermal expansion coefficients, unlike conventional products.
上記した如く、本考案は樹脂５′によつて封止
されたボデイコア２と、作動ギヤツプを有するチ
ツプコア１を接合して成る磁気ヘツドにおいて、
該ボデイコア２の該チツプコア１と接合する先端
部分にテーパ状に上記樹脂５′を設けたので、強
度的にも充分であり、ボデイコア２のフエライト
のみがチツプコア１と接合し、従来のものの様に
熱膨張係数の差によつて温度変化の影響を受ける
ことがなく、磁気ヘツド自体の特性が向上する。
また上記した様にボデイコア２の先端部分にテー
パ状に樹脂５′を設けたので、金型成形時におけ
る金型との離型もスムーズに行え作業性も向上し
た。 As mentioned above, the present invention provides a magnetic head in which a body core 2 sealed with resin 5' and a chip core 1 having an operating gap are joined.
Since the resin 5' is provided in a tapered shape at the tip of the body core 2 where it joins with the chip core 1, it has sufficient strength, and only the ferrite of the body core 2 joins with the chip core 1, making it as easy as the conventional one. Due to the difference in thermal expansion coefficients, the characteristics of the magnetic head itself are improved without being affected by temperature changes.
Further, as described above, since the resin 5' is provided in a tapered shape at the tip of the body core 2, the mold can be smoothly released from the mold during molding, and workability has been improved.
第１図及び第２図は従来例を示す、一部断面で
示した正面図及び側面図、第３図及び第４図は本
考案の一実施例を示す一部断面で示した正面図及
び側面図である。
１…チツプコア、２…ボデイコア、５′…樹脂。
1 and 2 show a conventional example, a partially sectional front view and a side view, and FIGS. 3 and 4 show a partially sectional front view and a partially sectional side view of an embodiment of the present invention. FIG. 1... Chip core, 2... Body core, 5'... Resin.
Claims (1)
ヤツプを有するチツプコアを接合して成る磁気ヘ
ツドにおいて、該ボデイコアの該チツプコアと接
合する先端部分にテーパー状に上記樹脂を設けた
ことを特徴とする磁気ヘツド。 A magnetic head formed by joining a body core sealed with a resin and a chip core having an operating gap, characterized in that the resin is provided in a tapered shape at the tip of the body core that joins the chip core. Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16834682U JPS5974514U (en) | 1982-11-05 | 1982-11-05 | magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16834682U JPS5974514U (en) | 1982-11-05 | 1982-11-05 | magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5974514U JPS5974514U (en) | 1984-05-21 |
| JPH0114990Y2 true JPH0114990Y2 (en) | 1989-05-02 |
Family
ID=30368056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16834682U Granted JPS5974514U (en) | 1982-11-05 | 1982-11-05 | magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5974514U (en) |
-
1982
- 1982-11-05 JP JP16834682U patent/JPS5974514U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5974514U (en) | 1984-05-21 |
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