JPS61125003A - Chip-type coil element - Google Patents
Chip-type coil elementInfo
- Publication number
- JPS61125003A JPS61125003A JP24654684A JP24654684A JPS61125003A JP S61125003 A JPS61125003 A JP S61125003A JP 24654684 A JP24654684 A JP 24654684A JP 24654684 A JP24654684 A JP 24654684A JP S61125003 A JPS61125003 A JP S61125003A
- Authority
- JP
- Japan
- Prior art keywords
- core
- terminal plates
- chip
- coil
- terminal
- 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
- 238000010276 construction Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 description 10
- 229920002635 polyurethane Polymers 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
-
- 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)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はチップ型コイル素子に関し、殊に該コイル素子
の構成要素であるコアと端子板との接合構造の改良に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chip-type coil element, and particularly to an improvement in the bonding structure between a core and a terminal plate, which are components of the coil element.
従」践口支術−
近年、半導体素子の発展に伴い電子機器、電子回路の小
型化、薄型化か急激に進んでおり、Ｍ電子回路等を構成
するフィル素子も小型化、チップ型化が試みられている
。In recent years, with the development of semiconductor devices, electronic devices and circuits have rapidly become smaller and thinner, and the fill elements that make up electronic circuits are also becoming smaller and more chip-shaped. is being attempted.
この従来のチップ型コイル素子は通常第３図に示すよう
にフェライトから成るコア１１と、該コア１１の外周部
にポリウレタン被覆銅線が多数巻回されてなるコイル１
２と、コイルエ２を外部回路と電気的に接続するための
平板状の一対の端子板１３．１４とから構成されており
、該チップ型コイル素子はコイル１２が巻回されたコア
１１の両端面に一対の端子板１３．１４をエポキ７樹脂
等からなる接着剤を介して取着すると共に、コイル１２
の両端を端子板１３．１４の夫々にロウ付けし、しかる
後、コア１１及びコイル１２の外周部を合成樹脂１５で
モールドすることによって作製されている。As shown in FIG. 3, this conventional chip-type coil element usually has a core 11 made of ferrite, and a coil 1 made of a polyurethane-coated copper wire wound around the outer periphery of the core 11.
2 and a pair of flat terminal plates 13 and 14 for electrically connecting the coil element 2 to an external circuit. A pair of terminal plates 13 and 14 are attached to the surface with an adhesive made of epoxy 7 resin, etc., and the coil 12
Both ends of the coil are brazed to terminal plates 13 and 14, respectively, and then the outer peripheries of the core 11 and coil 12 are molded with synthetic resin 15.
［１（＋ｌ、１日？−
しかし乍ら、この従来のチップ型コイル素子は、コア１
１と端子［１３，１４との取着接合か平面的（２次元的
）であることから、その接合は垂１σな矢印Ｐ方向の外
力に対して極めて弱いという欠点ををしていた。そのた
め端子板１３．１４を外部回路に接続する場合等におい
て端子板１３．１４に垂直方向（矢印Ｐ方向）の外力が
作用すると該外力によって端子板１３．１４かコア１１
からはかれてしまい、その結果、端子板１３．１４とコ
ア１１の外周に巻回されたコイル１２との電気的接続か
外れて断線したり、接触不良を生じたりしてチップ型コ
イル素子としての機能に支障を来すという重大な欠点を
誘発する。[1(+l, 1 day?- However, this conventional chip-type coil element has core 1
1 and the terminals [13, 14] is planar (two-dimensional), so the joint has the disadvantage of being extremely weak against external force in the vertical 1σ direction of arrow P. Therefore, when an external force is applied to the terminal plate 13.14 in the vertical direction (in the direction of arrow P) when connecting the terminal plate 13.14 to an external circuit, the external force may cause the terminal plate 13.14 to
As a result, the electrical connection between the terminal plates 13 and 14 and the coil 12 wound around the outer periphery of the core 11 may be disconnected, resulting in disconnection or poor contact, resulting in failure of the chip-type coil element. This causes serious drawbacks such as interfering with the functions of
光匪些１旺
本発明は、このような点にあって端子板の構造を工夫す
ることにより、簡単な構成で上述した問題点を確実に解
消することのできる有用な一手段を提供するものである
。 。SUMMARY OF THE INVENTION The present invention provides a useful means for reliably solving the above-mentioned problems with a simple configuration by devising the structure of the terminal board. It is. .
ロ ゛ こめの二
上記目的を達成するため本発明は、コイルが巻回された
コアに一対の端子板を取着して成るチップ型コイル素子
において、前記一対の端子板のそれぞれの取着間に少な
くとも一個の凸部を形成し、該凸部をコアに形成した凹
部内に嵌入取着させたことを要旨としている。(b) Second, in order to achieve the above object, the present invention provides a chip-type coil element comprising a pair of terminal plates attached to a core around which a coil is wound. The main feature is that at least one convex portion is formed in the core, and the convex portion is fitted into a concave portion formed in the core.
実」Ｅ例−
第１、図は本発明のチップ型コイル素子の一実施例を示
し、１はコア、２はコイル、３．４は端子板である。Actual Example E--First, the figure shows an embodiment of the chip-type coil element of the present invention, where 1 is a core, 2 is a coil, and 3.4 is a terminal plate.
前記コア１は高周波特性がよく、かつ機械的強度が大の
フェライトからなり、その周部にコイルを巻回するため
の溝か、また両端面１ａ１ ｌｂに端子板の凸部か嵌入
される凹部５が形成されている。このコア１は円柱状の
フェライト焼結体を従来周知の切削加工法により切削す
ることによ、って図示の如き形状に形成される。The core 1 is made of ferrite with good high frequency characteristics and high mechanical strength, and has a groove around its periphery for winding a coil, and a recess into which a protrusion of a terminal plate is fitted on both end surfaces 1a1 lb. 5 is formed. The core 1 is formed into the shape shown in the figure by cutting a cylindrical ferrite sintered body using a conventionally well-known cutting method.
前記コア１はその周部溝内に直径０．０３〜０．１５ｍ
ｍφのポリウレタン被覆銅線が多数巻回され°Ｃ：１ｌ
１５す、該ポリウレタン被覆鋼線の巻回によりコイル２
が形成される。The core 1 has a diameter of 0.03 to 0.15 m in its circumferential groove.
A large number of polyurethane coated copper wires of mφ are wound at °C: 1l.
15. Coil 2 is formed by winding the polyurethane coated steel wire.
is formed.
前記コイル２はポリウレタンＰｆＬ覆銅線の巻回数によ
ってそのインダクタンスの大きさが決定され、コイル２
の巻回数（ポリウレタン被覆銅線の巻回数）はチップ型
コイル素子が所望するインダクタンスの大きさに合わせ
て決定される。The inductance of the coil 2 is determined by the number of turns of the polyurethane PfL copper-clad wire.
The number of turns (the number of turns of the polyurethane-coated copper wire) is determined according to the desired inductance of the chip-type coil element.
マタ前記コイル２を構成するポリウレタン被覆銅線はそ
の太さがチップ型コイル素−ｒの所望するインダクタン
スの大きさ、即ち、コイル２の巻回数によって決定され
、大きなインダクタンスを自゛するチップ型コイル素子
の場合、コイル２の巻回数が大となることからポリウレ
タン被覆銅線は細いものが使用され、また小さなインダ
クタンスを有するチップ型コ、イル素子の場合はコイル
２の巻回数が小となることからポリウレタン被覆銅線は
太いものか使用される。The thickness of the polyurethane-coated copper wire constituting the coil 2 is determined by the desired inductance of the chip-type coil element, that is, the number of turns of the coil 2, and the chip-type coil has a large inductance. In the case of an element, the number of turns of the coil 2 is large, so a thin polyurethane-coated copper wire is used, and in the case of a chip-type coil element with small inductance, the number of turns of the coil 2 is small. Since polyurethane coated copper wire is used, it is thicker or thicker.
尚、前記コイル２はポリウレタン被覆銅線を従来周知の
フライヤ方式もしくはスピンドル方式によりコア１側面
の凹部内に多数巻回することにより形成される。The coil 2 is formed by winding a large number of polyurethane-coated copper wires into the recessed portion of the side surface of the core 1 using a conventionally known flyer method or spindle method.
前記コイル２が巻回されたコア１はその端面ｌａ１ ｌ
ｂに一対の端子板３．４がエポキシ樹脂等から成る接着
材を介し取着されており、コイル２を構成するポリウレ
タン被覆銅線の両端はそれぞれ端子板３．４に半田等の
ロウ材を介しロウ付けされる。The core 1 around which the coil 2 is wound has its end face la1 l
A pair of terminal plates 3.4 are attached to b via an adhesive made of epoxy resin or the like, and both ends of the polyurethane-coated copper wire constituting the coil 2 are soldered to the terminal plates 3.4 with brazing material such as solder. It is soldered through.
前記端子板３．４はコイル２を外部回路に電気的に接続
する作用をなし、コイル２のＱ特性の低下を防止するた
めに銅等の非磁性体で形成されている。The terminal plate 3.4 serves to electrically connect the coil 2 to an external circuit, and is made of a non-magnetic material such as copper in order to prevent the Q characteristic of the coil 2 from deteriorating.
また、前記端子板３．４はそのコア１との取る面側に凸
部６．６が形成してあり（第２図参照）、該凸部６．６
はコア１の端面１ａ、１ｂに形成した四部５．５内に嵌
入され、エポキシ樹脂等の接着材を介し取着されている
。Further, the terminal plate 3.4 is formed with a convex portion 6.6 on the side facing the core 1 (see FIG. 2).
are fitted into four portions 5.5 formed on the end faces 1a and 1b of the core 1, and attached via an adhesive such as epoxy resin.
かかる構成によれば、一対の端子板３．４はコア１の端
面１ａ１ ｌｂに平面的に取着されていると共に、取符
面側に形成した凸部６をコア１端而１ａ、１ｂに形成し
た凹部５．５内に嵌入してもコア１に取着されているた
め、端子板３．４とコア１との接合は３次元的な極めて
強固なものとな：、）、その結果、端子板３．４に垂直
方向の外力か作用したとしても該外力によって端子板３
．４ｈ・コア１から剥離することはない。According to this configuration, the pair of terminal plates 3.4 are attached to the end surfaces 1a1-lb of the core 1 in a planar manner, and the convex portions 6 formed on the dotted surface side are attached to the ends 1a, 1b of the core 1. Even if it is inserted into the formed recess 5.5, it is still attached to the core 1, so the bond between the terminal plate 3.4 and the core 1 is three-dimensional and extremely strong. , even if a vertical external force acts on the terminal plate 3.4, the external force will cause the terminal plate 3.
．． 4h・No peeling from core 1.
尚、前記コア１端而１ａ、ｌｂに形成した凹孔５．５の
深さは、端子＃ｉ３．４に形成した凸部６．６との取着
において端子板３．４に垂直方向の外力か作用したとし
ても該端子板３，４かコア１から剥離することのない取
着接合強度が得られる深さであればよく、チップ型コイ
ル素子の使用条件等に合わせて適宜決定される。この凹
部５．５は従来周知の穴明は加工法によってコア１端而
ｌａ、ｌｂに形成される。The depth of the recessed holes 5.5 formed in the core 1 ends 1a and lb is determined by the depth in the direction perpendicular to the terminal plate 3.4 when attached to the protrusion 6.6 formed in the terminal #i3.4. The depth may be any depth that provides a bonding strength that will not cause the terminal plates 3, 4 to separate from the core 1 even if an external force is applied, and is determined as appropriate depending on the conditions of use of the chip-type coil element. . The recesses 5.5 are formed in the core 1 by a conventional drilling method.
前記コイル２が巻回されたコ゛ｒ１に一対の端子板３．
４が取着された後、その外周部か従来周知のトランスフ
ァーモールド法によりフェライトの粉末が混入した樹脂
でモールドされ、コイル２及びコア１が外部の磁気から
完全にシールドされて最終製品としてのチップ型コイル
素子が完成する光瀝縁り例釆−
以上説明したように本発明によれば、端子板に形成した
凸部をコア端面に形成した凹部に嵌入取着することによ
って端子板をコアに対し３次元的に、かつ接合面積を大
に取着接合させることかでき、端子板に垂直方向の外力
が作用したとしても該外力によって端子板が剥離するこ
とは一切なく極めて高品質、高信頼性のチップ型コイル
素子を得ることかできる。A pair of terminal plates 3 are attached to the coil r1 around which the coil 2 is wound.
After the coil 2 and the core 1 are attached, the outer periphery of the coil is molded with resin mixed with ferrite powder by the conventionally well-known transfer molding method, and the coil 2 and core 1 are completely shielded from external magnetism, forming a chip as a final product. Example of a light-cut edge for completing a type coil element - As explained above, according to the present invention, the terminal plate is attached to the core by fitting and attaching the convex portion formed on the terminal plate into the recess formed on the end face of the core. On the other hand, it is possible to attach and bond three-dimensionally and over a large bonding area, and even if an external force is applied in the vertical direction to the terminal board, the terminal board will not peel off due to the external force, resulting in extremely high quality and reliability. It is possible to obtain a chip-type coil element with the same characteristics.
加えて、構造上は弔にコア側に凹部を、端子板側に凸部
を形成したたけの而易な構成で足りるため、上記のよう
な優れた効果を発揮できるのにも拘わらす、実施が容易
であるという利点もある。In addition, since the structure is as simple as forming a concave part on the core side and a convex part on the terminal plate side, it is difficult to implement, although the excellent effects described above can be achieved. It also has the advantage of being easy.
第１図は本発明の−・実施例としてのチップ型コイル毒
γ示す正面断面図、第２図はコアと端ｆ板との接合部分
の構成を示す図、第３図は従来の千ノブ型コイル素子を
示す図である。
■・・・コア、ｌａｌ ｌｂ・・・接合面、３．４・・
・端ｒ板５・・・凹部、６・・・凸部。
特許出願人 京セラ株式会社
代理人 弁理士 中 島 【）ｊ 朗第１図
第２図
第３図
手続補正書
昭和６０年 ４年２４日
↑’ｒ＝’ｌｌ ｉ長″ｌ’ｆ殿
・、ζう＼ｈ、’（ｆ件の表）Ｉ（昭和
５９年特許願第２４６５４６５じ２、発明の名称
チｌプ型コイル素子３、抽圧をする者
を件との関係 特１１出願人
４、代理人Fig. 1 is a front sectional view showing a chip-type coil poison γ as an embodiment of the present invention, Fig. 2 is a view showing the structure of the joint part between the core and the end f plate, and Fig. 3 is a conventional 1000-knob. It is a figure showing a type coil element. ■...Core, lal lb...Joint surface, 3.4...
- End r plate 5... concave portion, 6... convex portion. Patent Applicant Kyocera Corporation Agent Patent Attorney Nakajima [)j Akira Figure 1 Figure 2 Figure 3 Procedural Amendment 1985 4/24 ↑'r='ll i length''l'f
・,ζU\h,' (Table of f items) I (1981 Patent Application No. 2465465-2, Title of Invention
Relationship between tip type coil element 3 and the person who extracts pressure Patent No. 11 applicant 4, agent
Claims (1)
チップ型コイル素子において、前記一対の端子板のそれ
ぞれの取着面に少なくとも一個の凸部を形成し、該凸部
をコアに形成した凹部内に嵌入取着させたことを特徴と
するチップ型コイル素子。In a chip-type coil element comprising a pair of terminal plates attached to a core around which a coil is wound, at least one protrusion is formed on each attaching surface of the pair of terminal plates, and the protrusion is connected to the core. A chip-type coil element, characterized in that the chip-type coil element is fitted and mounted in a recess formed in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24654684A JPS61125003A (en) | 1984-11-21 | 1984-11-21 | Chip-type coil element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24654684A JPS61125003A (en) | 1984-11-21 | 1984-11-21 | Chip-type coil element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61125003A true JPS61125003A (en) | 1986-06-12 |
Family
ID=17150016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24654684A Pending JPS61125003A (en) | 1984-11-21 | 1984-11-21 | Chip-type coil element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61125003A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07272951A (en) * | 1994-03-31 | 1995-10-20 | Toko Inc | Inductance element |
| JP2009200435A (en) * | 2008-02-25 | 2009-09-03 | Taiyo Yuden Co Ltd | Surface-mounting coil member |
-
1984
- 1984-11-21 JP JP24654684A patent/JPS61125003A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07272951A (en) * | 1994-03-31 | 1995-10-20 | Toko Inc | Inductance element |
| JP2009200435A (en) * | 2008-02-25 | 2009-09-03 | Taiyo Yuden Co Ltd | Surface-mounting coil member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6535095B2 (en) | Wound type common mode choke coil | |
| US7292128B2 (en) | Gapped core structure for magnetic components | |
| JP2000269050A (en) | Common-mode choke coil | |
| JPS60214510A (en) | Electronic part | |
| JP3152088B2 (en) | Manufacturing method of coil parts | |
| US4553123A (en) | Miniature inductor | |
| EP0175461B1 (en) | Coil assembly | |
| JPS61125003A (en) | Chip-type coil element | |
| GB2108769A (en) | Arrangement of terminals on a chip type inductor | |
| JP3450140B2 (en) | Chip inductor | |
| EP0291602B1 (en) | Contact elements for miniature inductor | |
| JPH1064737A (en) | Chip common mode choke coil | |
| JPS643334B2 (en) | ||
| JPS61102712A (en) | Chip type coil element | |
| JPS59116917A (en) | Magnetic head | |
| JPH0748433B2 (en) | Inductance element | |
| JP3476887B2 (en) | Method of forming coil component and electrode | |
| JPS5940764Y2 (en) | solid electrolytic capacitor | |
| JP3423881B2 (en) | Chip inductor and manufacturing method thereof | |
| JPS6223054Y2 (en) | ||
| JPH0222965Y2 (en) | ||
| JPH02208909A (en) | Inductance element and transformer | |
| JPH0410657Y2 (en) | ||
| JPS6223065Y2 (en) | ||
| JP2520104Y2 (en) | Trance |