JPH0152883B2 - - Google Patents
Info
- Publication number
- JPH0152883B2 JPH0152883B2 JP25092083A JP25092083A JPH0152883B2 JP H0152883 B2 JPH0152883 B2 JP H0152883B2 JP 25092083 A JP25092083 A JP 25092083A JP 25092083 A JP25092083 A JP 25092083A JP H0152883 B2 JPH0152883 B2 JP H0152883B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- drum
- coil
- shaped core
- tapered
- 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
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は各種電子機器に利用される小型コイル
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a small coil used in various electronic devices.
従来例の構成とその問題点
従来の小型コイルとしては、第１図〜第４図に
示すように構成されていた。すなわち、両端に鍔
１ａ，１ｂを有するドラム型コア１の一方の鍔１
ａに端子２を挿入結合する取付穴３を設け、この
取付穴３に端子２を挿入して接着剤などで固着
し、このドラム型コア１にコイル４を巻装し、こ
のコイル４の巻始め、巻終りとなるコイルリード
４ａ，４ｂを上記端子２に巻付けて半田により接
続し、合成樹脂による外装５を施して構成されて
いた。Conventional structure and problems thereof Conventional small coils have been constructed as shown in FIGS. 1 to 4. That is, one flange 1 of a drum-shaped core 1 having flanges 1a and 1b at both ends.
A is provided with a mounting hole 3 into which the terminal 2 is inserted and connected, the terminal 2 is inserted into this mounting hole 3 and fixed with adhesive, etc., the coil 4 is wound around this drum-shaped core 1, and the coil 4 is wound. The coil leads 4a and 4b, which are the first and last windings, are wound around the terminal 2 and connected by soldering, and an exterior 5 made of synthetic resin is applied.
また、他の従来例として第５図〜第８図に示す
ようなものが開発されている。すなわち、両端に
鍔６ａ，６ｂを有するドラム型コア６の両方の鍔
６ａ，６ｂの外側面に球面状の凹部６ｃを設け、
この凹部６ｃに金属を蒸着して金属層６ｄを設
け、上記ドラム型コア６にコイル７を巻装し、こ
のコイル７の巻始め、巻終りのコイルリード７
ａ，７ｂを、線材の一部に上記凹部６ｃにはまり
こむ彎曲部８ａをもつた端子８の彎曲部８ａに巻
付け、この端子８を鍔６ａ，６ｂの凹部６ｃの金
属層６ｄに半田９により接続結合し、このドラム
型コア６の周囲に合成樹脂による外装１０を形成
して構成されていた。 Further, as other conventional examples, those shown in FIGS. 5 to 8 have been developed. That is, a spherical recess 6c is provided on the outer surface of both flanges 6a, 6b of a drum-shaped core 6 having flanges 6a, 6b at both ends,
A metal layer 6d is provided by vapor-depositing metal in the recess 6c, a coil 7 is wound around the drum-shaped core 6, and a coil lead 7 is placed at the beginning and end of the coil 7.
a, 7b are wound around the curved portion 8a of a terminal 8, which has a curved portion 8a that fits into the recess 6c in part of the wire, and this terminal 8 is soldered to the metal layer 6d of the recess 6c of the collars 6a, 6b. The outer shell 10 made of synthetic resin was formed around the drum-shaped core 6.
上記２つの従来例による小型コイルにおいて
は、外装５，１０を形成する場合、溶融した樹脂
液にドラム型コア１，６部を浸漬するか塗布して
外装５，１０を形成するしか方法がなかつた。 In the small coils according to the above two conventional examples, when forming the outer sheaths 5 and 10, the only way to form the outer sheaths 5 and 10 is to immerse or coat the drum-shaped cores 1 and 6 in a molten resin liquid. Ta.
したがつて外装５，１０の肉厚にばらつきが生
じて絶縁性や耐湿性の点で不安定なものとなつて
いた。 Therefore, the wall thicknesses of the outer sheaths 5 and 10 vary, making them unstable in terms of insulation and moisture resistance.
このため、数回浸漬したり、塗布したりして十
分な肉厚となるようにしているが、工数がかかる
とともに、必要以上の樹脂を使用することになり
コスト面で著しく不利になるものであつた。 For this reason, sufficient thickness is achieved by dipping or coating several times, but this requires more man-hours and uses more resin than necessary, which is a significant disadvantage in terms of cost. It was hot.
発明の目的
本発明は以上のような従来の欠点を除去するも
のであり、金型を用いて所定の形状にかつ一定の
肉厚をもつ外装が形成できる小型コイルを提供し
ようとするものである。Purpose of the Invention The present invention aims to eliminate the above-mentioned conventional drawbacks, and provides a small coil that can be formed into a predetermined shape and a sheath with a constant wall thickness using a mold. .
発明の構成
上記目的を達成するために、本発明の小型コイ
ルは、両端に鍔を有するドラム型コアの一方の鍔
の外側面に２本の端子溝を設け、この端子溝には
めこまれて接着結合される固定部と、この固定部
から立上つたテーパ部と、このテーパ部の先端部
に外方に突出する水平部をもつた端子を上記ドラ
ム型コアに取付け、上記ドラム型コアに巻装され
たコイルのコイルリードを上記端子のテーパ部に
接続し、このドラム型コアおよび端子のテーパ部
を樹脂による外装でモールドした構成とし、この
構成とすることによつて端子の水平部で金型の上
面に支持して金型にセツトしたドラム型コアおよ
び端子のテーパ部を注型した樹脂でモールドし外
装とすることができる。Structure of the Invention In order to achieve the above object, the small coil of the present invention has two terminal grooves provided on the outer surface of one of the flanges of a drum-shaped core having flanges at both ends, and a coil that is fitted into the terminal groove. A terminal having a fixing part to be adhesively bonded, a tapered part rising from the fixing part, and a horizontal part protruding outward at the tip of the tapered part is attached to the drum-shaped core, and the terminal is attached to the drum-shaped core. The coil lead of the wound coil is connected to the tapered part of the terminal, and the drum-shaped core and the tapered part of the terminal are molded with a resin exterior. The drum-shaped core supported on the upper surface of the mold and the tapered portion of the terminal can be molded with cast resin to form an exterior.
実施例の説明
以下、本発明の実施例を図面第９図〜第１７図
により説明する。DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 9 to 17.
まず、第９図〜第１５図において、１１は両端
に鍔１２，１３を有するドラム型コアであり、こ
のドラム型コア１１の一方の鍔１２の外側面には
２本の平行な端子溝１４，１５が形成されてい
る。この端子溝１４，１５には、端子溝１４，１
５にはめこまれて接着剤などにより結合される固
定部１６ａ，１７ａと、この固定部１６ａ，１７
ａの一端から立上つたテーパ部１６ｂ，１７ｂ
と、そのテーパ部１６ｂ，１７ｂの先端から外方
に突出する水平部１６ｃ，１７ｃとによつて構成
される端子１６，１７が組込まれて結合されてい
る。 First, in FIGS. 9 to 15, reference numeral 11 is a drum-shaped core having flanges 12 and 13 at both ends, and two parallel terminal grooves 14 are formed on the outer surface of one of the flanges 12 of this drum-shaped core 11. , 15 are formed. These terminal grooves 14 and 15 have terminal grooves 14 and 15.
Fixing parts 16a, 17a that are fitted into the fixing parts 16a, 17a and connected with adhesive etc.
Tapered portions 16b and 17b rising from one end of a
and horizontal portions 16c, 17c protruding outward from the tips of the tapered portions 16b, 17b. Terminals 16, 17 are incorporated and coupled together.
この端子１６，１７は金属板を打抜いて個片化
したものを用いてもよく、また、量産化を図る上
においては第１５図に示すように金属フープ材１
８を用いる方が有利となる。 The terminals 16 and 17 may be formed by punching out a metal plate into individual pieces.Also, in order to mass produce the terminals 16 and 17, as shown in FIG.
It is more advantageous to use 8.
上記ドラム型コア１１にはコイル１９が巻装さ
れ、このコイル１９の巻始め、巻終りのコイルリ
ード１９ａ，１９ｂは端子１６，１７のテーパ部
１６ｂ，１７ｂに巻付けられ半田付けにより接続
されている。 A coil 19 is wound around the drum-shaped core 11, and coil leads 19a and 19b at the beginning and end of the coil 19 are wound around the tapered portions 16b and 17b of the terminals 16 and 17 and connected by soldering. There is.
このようなコイル１９を巻装されたドラム型コ
ア１１には樹脂による外装２０が形成され、この
外装２０には端子１６，１７のテーパ部１６ｂ，
１７ｂもモールドされている。 A resin sheath 20 is formed on the drum-shaped core 11 wound with such a coil 19, and this sheath 20 has tapered portions 16b of the terminals 16, 17,
17b is also molded.
すなわち、この外装２０は第１４図に示すよう
に、モールド金型２１の上面に端子１６，１７の
水平部１６ｃ，１７ｃを支持させ、テーパ部１６
ｂ，１７ｂを含むようにドラム型コア１１を凹部
２１ａに収納し、この凹部２１ａに溶融樹脂を注
入し、これを硬化させて形成することができる。
このとき、モールド金型２１の凹部２１ａの深さ
と端子１６，１７のテーパ部１６ｂ，１７ｂの立
上り寸法を規制することにより、凹部２１ａ内に
セツトするドラム型コア１１の位置が自然と規制
され、ここに注入して形成する外装２０の肉厚は
規制されることになり、絶縁性や耐湿性などの所
定の特性を推持する上で著しく管理しやすく、ま
た、使用する樹脂の量も必要最小限となり、工程
的にも一度のモールド成型で済むことになる。 In other words, as shown in FIG.
It can be formed by housing the drum-shaped core 11 in the recess 21a so as to include portions b and 17b, injecting molten resin into the recess 21a, and curing the resin.
At this time, by regulating the depth of the recess 21a of the molding die 21 and the rising dimensions of the tapered parts 16b, 17b of the terminals 16, 17, the position of the drum-shaped core 11 set in the recess 21a is naturally regulated. The thickness of the outer sheath 20 formed by injection here is regulated, and it is extremely easy to control in order to maintain predetermined properties such as insulation and moisture resistance, and the amount of resin used is also required. The number of steps is minimized, and only one molding process is required.
なお、上記実施例では端子１６，１７として板
状端子のものを示し、完成した小型コイルはチツ
プ部品の構成となつているが、第１６図、第１７
図に示すように丸線の端子１６，１７を用い、水
平部１６ｃ，１７ｃの先端を垂直に折曲してラジ
アルリードタイプとすることもできる。なお、外
装２０を形成する工程までは折曲加工を施さずに
先端まで水平部分１６ｃ，１７ｃとして活用して
もよく、また、最初から水平部１６ｃ，１７ｃの
先端に垂直部１６ｄ，１７ｄを形成した形状とし
外装２０の形成時にモールド金型２１の支持は水
平部１６ｃ，１７ｃで行つてもよい。 In the above embodiment, plate-shaped terminals are shown as the terminals 16 and 17, and the completed small coil has a structure of chip parts.
As shown in the figure, it is also possible to use round wire terminals 16, 17 and bend the tips of the horizontal portions 16c, 17c vertically to form a radial lead type. Note that up to the step of forming the exterior 20, the bending process may not be performed and the horizontal parts 16c, 17c may be used up to the tips, or the vertical parts 16d, 17d may be formed at the tips of the horizontal parts 16c, 17c from the beginning. When forming the exterior 20, the mold 21 may be supported by the horizontal parts 16c and 17c.
発明の効果
以上のように本発明の小型コイルは、ドラム型
コアの一方の鍔の外側面の端子溝に取付ける端子
として、端子溝に接着結合する固定部と、この固
定部の一端より立上つたテーパ部と、このテーパ
部の先端に外方に突出する水平部をもつた構成と
したため、水平部を支持部としてモールド金型で
外装を形成することができ、必要最小限の樹脂材
で均一な肉厚をもち絶縁性、耐湿性などを満足す
る外装が形成でき、生産工程的にも一度で外装が
形成できるとともに、コスト面でも著しく有利で
量産に適した構成となるなどの利点をもち、工業
的価値の大なるものである。Effects of the Invention As described above, the small coil of the present invention, as a terminal to be attached to the terminal groove on the outer surface of one of the flanges of the drum-shaped core, has a fixed part that is adhesively bonded to the terminal groove, and a terminal that rises from one end of this fixed part. Because it has a structure with a tapered part and a horizontal part that protrudes outward at the tip of this tapered part, the exterior can be formed with a mold using the horizontal part as a support, using the minimum necessary resin material. It has the advantage of being able to form an exterior that has uniform wall thickness and satisfies insulation, moisture resistance, etc. In terms of the production process, the exterior can be formed in one step, and it is extremely cost-effective and has a configuration suitable for mass production. It has great industrial value.
第１図は従来の小型コイルの斜視図、第２図は
同断面図、第３図、第４図は同組立途上の斜視
図、第５図は他の従来例の小型コイルの斜視図、
第６図は同断面図、第７図、第８図は同組立途上
の斜視図、第９図は本発明の小型コイルの一実施
例を示す斜視図、第１０図は同断面図、第１１図
〜第１３図は同組立途上の斜視図、第１４図は同
外装を形成する状態の断面図、第１５図は同コイ
ルに用いる端子の例を示す斜視図、第１６図は他
の実施例の小型コイルの斜視図、第１７図は同断
面図である。
１１……ドラム型コア、１２，１３……鍔、１
４，１５……端子溝、１６，１７……端子、１６
ａ，１７ａ……固定部、１６ｂ，１７ｂ……テー
パ部、１６ｃ，１７ｃ……水平部、１９……コイ
ル、１９ａ，１９ｂ……コイルリード、２０……
外装。
Fig. 1 is a perspective view of a conventional small coil, Fig. 2 is a sectional view thereof, Figs. 3 and 4 are perspective views of the same in the process of being assembled, and Fig. 5 is a perspective view of another conventional small coil.
6 is a sectional view of the same, FIGS. 7 and 8 are perspective views of the same during assembly, FIG. 9 is a perspective view showing an embodiment of the small coil of the present invention, and FIG. 10 is a sectional view of the same, and FIG. Figures 11 to 13 are perspective views in the process of assembling the coil, Figure 14 is a sectional view of the exterior being formed, Figure 15 is a perspective view showing an example of a terminal used in the coil, and Figure 16 is a perspective view of another terminal. FIG. 17 is a perspective view of the small coil of the embodiment, and a sectional view thereof. 11...Drum-shaped core, 12,13...Tsuba, 1
4, 15... terminal groove, 16, 17... terminal, 16
a, 17a... Fixed part, 16b, 17b... Tapered part, 16c, 17c... Horizontal part, 19... Coil, 19a, 19b... Coil lead, 20...
Exterior.
Claims (1)
外側面に２本の端子溝を設け、この端子溝にはめ
こまれて接着結合される固定部と、この固定部か
ら立上つたテーパ部と、このテーパ部の先端部に
外方に突出する水平部分をもつた端子を上記ドラ
ム型コアに取付け、上記ドラム型コアに巻装され
たコイルのコイルリードを上記端子のテーパ部に
接続し、このドラム型コアおよび端子のテーパ部
を樹脂による外装でモールドした小型コイル。1 Two terminal grooves are provided on the outer surface of one of the flanges of a drum-shaped core that has flanges at both ends, and a fixed part that is fitted into the terminal groove and bonded with adhesive, and a tapered part that rises from this fixed part. A terminal having an outwardly protruding horizontal portion at the tip of the tapered portion is attached to the drum-shaped core, and a coil lead of a coil wound around the drum-shaped core is connected to the tapered portion of the terminal. , a small coil in which this drum-shaped core and the tapered part of the terminal are molded with a resin exterior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25092083A JPS60142507A (en) | 1983-12-28 | 1983-12-28 | Miniature coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25092083A JPS60142507A (en) | 1983-12-28 | 1983-12-28 | Miniature coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60142507A JPS60142507A (en) | 1985-07-27 |
| JPH0152883B2 true JPH0152883B2 (en) | 1989-11-10 |
Family
ID=17214984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25092083A Granted JPS60142507A (en) | 1983-12-28 | 1983-12-28 | Miniature coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60142507A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020155072A (en) * | 2019-03-22 | 2020-09-24 | 株式会社すなおネット | Commodity information provision system and service information provision system |
| WO2020213269A1 (en) * | 2019-04-16 | 2020-10-22 | 株式会社すなおネット | Product information providing system and service information providing system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63171012U (en) * | 1987-04-28 | 1988-11-08 | ||
| JPH056645Y2 (en) * | 1987-06-24 | 1993-02-19 |
-
1983
- 1983-12-28 JP JP25092083A patent/JPS60142507A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020155072A (en) * | 2019-03-22 | 2020-09-24 | 株式会社すなおネット | Commodity information provision system and service information provision system |
| WO2020196069A1 (en) * | 2019-03-22 | 2020-10-01 | 株式会社すなおネット | Product information providing system and service information providing system |
| WO2020213269A1 (en) * | 2019-04-16 | 2020-10-22 | 株式会社すなおネット | Product information providing system and service information providing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60142507A (en) | 1985-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0152883B2 (en) | ||
| KR900008073B1 (en) | Methods for manufacturing heating coil assembly | |
| JP2018022793A (en) | Electronic component and electronic apparatus using the same | |
| JPS5868913A (en) | Inductance element and manufacture thereof | |
| JPS58161312A (en) | Preparation of molded coil | |
| JPS60260108A (en) | Small size coil | |
| JPH0748439B2 (en) | Inductor manufacturing method | |
| JPH0625932Y2 (en) | Transformer | |
| JPS63283005A (en) | Transformer | |
| JPS6334910A (en) | Manufacture of coil component | |
| JPS60193308A (en) | Inductor and manufacture thereof | |
| JPH03289105A (en) | Choke coil with terminal mount and manufacture thereof | |
| US1894723A (en) | Armature | |
| JPH10215116A (en) | Antenna element and its manufacture | |
| JP2836211B2 (en) | Manufacturing method of resin molded high frequency coil | |
| JPS6256644B2 (en) | ||
| JPH0512978Y2 (en) | ||
| JPH0214179Y2 (en) | ||
| JPH11329868A (en) | Surface mount choke coil | |
| JPS634326B2 (en) | ||
| JPS6125217Y2 (en) | ||
| JPS58199509A (en) | Manufacture of parts for electrical coil-winding device | |
| JPH0670421B2 (en) | Pickup coil and manufacturing method thereof | |
| JPH01173610A (en) | Small coil | |
| JPH01188013A (en) | Manufacture of noise filter |