JPH06196331A - Chiplike inductor - Google Patents
Chiplike inductorInfo
- Publication number
- JPH06196331A JPH06196331A JP34709992A JP34709992A JPH06196331A JP H06196331 A JPH06196331 A JP H06196331A JP 34709992 A JP34709992 A JP 34709992A JP 34709992 A JP34709992 A JP 34709992A JP H06196331 A JPH06196331 A JP H06196331A
- Authority
- JP
- Japan
- Prior art keywords
- lead
- lead wire
- plate
- magnetic core
- inductor
- 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.)
- Granted
Links
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 13
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 48
- 239000002184 metal Substances 0.000 claims description 2
- 239000007767 bonding agent Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000003449 preventive effect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、回路基板に実装するチ
ップ状インダクタに関し、更に詳細には、アキシャルリ
ード形インダクタのリード線を板状電極リードに接合し
たチップ状インダクタのリード線の形状に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip-shaped inductor mounted on a circuit board, and more particularly to a shape of a chip-shaped inductor lead wire in which a lead wire of an axial lead-type inductor is joined to a plate-shaped electrode lead. .
【０００２】[0002]
【従来の技術】図４に示すように、磁性コアａの両端面
に形成した凹部ｂに接着剤ｃによりリード線ｄを固着
し、磁性コアａに巻装した巻線ｅの端末ｆを、該リード
線ｄにからげたアキシャルリード形インダクタにおい
て、リード線ｄの接着剤ｃ中からの抜けを防止するため
に、リード線ｄの先端に大径部ｇを設け、またリード線
ｄの接着剤ｃ中での回転及び巻線端末ｆのからげのゆる
みを防止するために、リード線ｄの固着部及びからげ部
を４角形その他の角形に形成することは、先に本出願人
によって提案されており、また、図５に示すように、ア
キシャルリード形インダクタｈのリード線ｄを板状電極
リードｉの切欠凹部ｊに嵌合して導電性接合剤（図示せ
ず）で接合したチップ状インダクタも知られている。2. Description of the Related Art As shown in FIG. 4, a lead wire d is fixed by an adhesive agent c in a recess b formed on both end surfaces of a magnetic core a, and an end f of a winding e wound around the magnetic core a is In the axial lead type inductor entwined with the lead wire d, in order to prevent the lead wire d from falling out of the adhesive c, a large diameter portion g is provided at the tip of the lead wire d, and the adhesive of the lead wire d is provided. It was previously proposed by the present applicant to form the fixing portion and the tangle portion of the lead wire d into a quadrangular shape or other rectangular shape in order to prevent rotation in c and loosening of the tangle of the winding terminal f. Further, as shown in FIG. 5, a chip in which the lead wire d of the axial lead type inductor h is fitted in the notch recess j of the plate electrode lead i and joined by a conductive adhesive (not shown). Inductors are also known.
【０００３】[0003]
【発明が解決しようとする課題】図４に示すアキシャル
リード形インダクタを用いて、図５に示すようなチップ
状インダクタを作成する場合、板状電極リードｉは、リ
ード線ｄとの接合強度及び導電性を向上するために、切
欠凹部ｊをリード線ｄの嵌合部の形状に適合する形状に
する必要があるが、このように構成された板状電極リー
ドｉの切欠凹部ｊに図４に示すアキシャルリード形イン
ダクタのリード線ｄを嵌合するとき、リード線ｄの向き
を切欠凹部ｊと合致するように考慮しなければならない
という問題が生じる。When a chip-shaped inductor as shown in FIG. 5 is produced by using the axial lead-type inductor shown in FIG. 4, the plate-shaped electrode lead i has a bonding strength with the lead wire d and In order to improve the conductivity, the cutout recess j needs to have a shape that matches the shape of the fitting portion of the lead wire d, and the cutout recess j of the plate-shaped electrode lead i thus configured has the shape shown in FIG. When fitting the lead wire d of the axial lead type inductor shown in (1), there arises a problem that the direction of the lead wire d must be taken into consideration so as to match the notch recess j.
【０００４】本発明は、従来のアキシャルリード形イン
ダクタのこのような問題を解決するためになされたもの
で、リード線が磁性コアに対して回転や抜けを生じるこ
とがなく、またリード線にからげた巻線端末のゆるみを
防止でき、また、リード線を板状電極リードの切欠凹部
に嵌合するときその向きを考慮する必要がないチップ状
インダクタを提供することをその目的とするものであ
る。The present invention has been made in order to solve such a problem of the conventional axial lead type inductor, and the lead wire does not rotate or come off with respect to the magnetic core, and the lead wire is not damaged. It is an object of the present invention to provide a chip-shaped inductor that can prevent looseness of a winding wire end and that does not need to consider the direction when fitting a lead wire into a cutout recess of a plate-shaped electrode lead. .
【０００５】[0005]
【課題を解決するための手段】本発明は、上記の目的を
達成するために、磁性コアに巻線を巻装し、その端末
を、前記磁性コアの両端面に形成した凹部において接着
剤で固着したリード線にからげて半田付けしたアキシャ
ルリード形インダクタのリード線を、板状電極リードの
端縁部に形成した切欠凹部に嵌合し、該リード線と板状
電極とを導電性接合剤により接合して成るチップ状イン
ダクタにおいて、前記リード線は、先端に大径部を有し
外形が断面非円形に形成された磁性コア固着部と、断面
円形の板状電極リード嵌合部と、断面角形のからげ部と
を有し、前記板状金属リードは、リード線の前記板状電
極リード嵌合部の被嵌合部が円形に形成された切欠凹部
を有することを特徴とする。In order to achieve the above-mentioned object, the present invention comprises winding a winding around a magnetic core, the ends of which are bonded with an adhesive in the recesses formed on both end faces of the magnetic core. Fit the lead wire of the axial lead type inductor, which is entangled and soldered to the fixed lead wire, into the notch recess formed in the edge of the plate electrode lead, and conductively bond the lead wire and the plate electrode. In a chip-shaped inductor formed by bonding with an agent, the lead wire includes a magnetic core fixing portion having a large diameter portion at a tip and a non-circular cross-sectional outer shape, and a plate-shaped electrode lead fitting portion having a circular cross-section. And a barbed portion having a rectangular cross section, wherein the plate-shaped metal lead has a cutout recess in which a fitted portion of the plate-shaped electrode lead fitting portion of the lead wire is formed in a circular shape. .
【０００６】[0006]
【作用】アキシャルリード形インダクタのリード線は、
その磁性コア固着部が大径部を有し且つ非円形に形成さ
れているので、接着剤とリード線の間に間隙ができて
も、磁性コアから抜けたり、回転することがない。また
リード線の板状電極リード嵌合部は断面円形に形成され
ているので、板状電極リードの切欠凹部の円形の被嵌合
部へその向きを考慮することなく嵌合できる。したがっ
て、組立が簡単で且つ容易になる。また、リード線のか
らげ部は断面が角形に形成されているので、端末のから
げ部はゆるみにくく、半田付けがより確実に行なわれ
る。[Operation] The lead wire of the axial lead type inductor is
Since the magnetic core fixing portion has a large diameter portion and is formed in a non-circular shape, even if a gap is formed between the adhesive and the lead wire, it will not come off from the magnetic core or rotate. Further, since the plate-shaped electrode lead fitting portion of the lead wire is formed to have a circular cross section, the lead wire can be fitted into the circular fitted portion of the cutout recess of the plate-shaped electrode lead without considering its orientation. Therefore, the assembly is simple and easy. Further, since the bulging portion of the lead wire is formed in a square cross section, the bulging portion of the terminal is hard to loosen, and the soldering is more reliably performed.
【０００７】[0007]
【実施例】以下本発明の実施例を図面につき説明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００８】図１は本発明の一実施例の一部截断側面図
を示す。FIG. 1 shows a partially cutaway side view of one embodiment of the present invention.
【０００９】同図において、１はアキシャルリード形イ
ンダクタ本体で、インダクタ本体１は、ドラム形磁性コ
ア２に巻線３が巻装され、その端末４はドラム形磁性コ
ア２の両端面から軸方向に延設された断面円形のリード
線５の基端部にからげられて半田付け（図示せず）さ
れ、該リード線５には板状電極リード７が半田付け（図
示せず）により接合されて構成されており、例えば樹脂
等の絶縁材でモールドにより形成された絶縁外装体６で
覆われ、板状電極リード線７の一部は絶縁外装体６から
露出し、その下面に沿って屈曲されてその端面が電極８
となっている。In the figure, reference numeral 1 is an axial lead type inductor body, and in the inductor body 1, a winding 3 is wound around a drum type magnetic core 2 and its ends 4 are axially arranged from both end surfaces of the drum type magnetic core 2. The lead wire 5 having a circular cross section extended to the base is bent and soldered (not shown), and the plate electrode lead 7 is joined to the lead wire 5 by soldering (not shown). And is covered with an insulating sheath 6 formed by molding with an insulating material such as resin, and a part of the plate electrode lead wire 7 is exposed from the insulating sheath 6 and extends along the lower surface thereof. The electrode 8 is bent and its end face is
Has become.
【００１０】前記リード線５は、図２に示すように、プ
レス成型により成形された例えば断面４角形で先端に大
径部９を有する磁性コア固着部１０と、断面円形で該固
着部１０側端部の全周縁に亘って接着剤流出防止用突起
１１を有する板状電極リード嵌合部１２と、プレス成型
により成形された例えば断面４角形のからげ部１３とを
有し、その他は断面円形である。前記突起１１は磁性コ
ア固着部１０を４角形にプレス成型の際、押し出されて
形成される。As shown in FIG. 2, the lead wire 5 is formed by press molding, for example, a magnetic core fixing portion 10 having a quadrangular cross-section and a large diameter portion 9 at the tip, and a circular cross-section fixing portion 10 side. It has a plate-shaped electrode lead fitting portion 12 having a protrusion 11 for preventing the adhesive outflow over the entire peripheral portion of the end portion, and a barbed portion 13 formed by press molding, for example, having a quadrangular cross section, and the other cross section. It is circular. The protrusion 11 is formed by being extruded when the magnetic core fixing portion 10 is pressed into a square shape.
【００１１】このリード線５は、図３に示すように、磁
性コア２の両端面の凹部１４に挿入され、接着剤１５に
より固着され、巻線３の端末４は板状電極リード嵌合部
１２を経て前記からげ部１３にからげられる。からげ部
１３は断面４角形に形成されているので、からげた後ゆ
るみを生じない。As shown in FIG. 3, the lead wire 5 is inserted into the recesses 14 on both end surfaces of the magnetic core 2 and fixed by an adhesive agent 15, and the end 4 of the winding 3 has a plate-like electrode lead fitting portion. It is tangled by the tangle portion 13 via 12. Since the bald portion 13 is formed in a quadrangular cross section, it does not loosen after being bald.
【００１２】巻線３の端末４がからげられ半田付けされ
たリード線５の板状電極リード嵌合部１２は、図３に示
すように、板状電極リード７の切欠凹部１６に嵌合す
る。この切欠凹部１６の、リード線５の板状電極リード
嵌合部１２が嵌合する被嵌合部１７は円形で、入口部１
８は被嵌合部１７より狭く、嵌合したリード線５が外に
出にくいようになっており、その外側は広がってリード
線５が入り易いようになっている。そしてまた切欠凹部
１６の底部には、切欠凹部１６にリード線５を嵌合した
とき、ばね弾性力によりリード線５を挾むように切込１
９が形成され、切欠凹部１６の周縁には、絞り加工によ
り、嵌合するリード線５の延設方向に突出する突出部２
０が形成され、接合強度を増大するようになっている。The plate-shaped electrode lead fitting portion 12 of the lead wire 5 to which the end 4 of the winding wire 3 has been twisted and soldered is fitted into the notched concave portion 16 of the plate-shaped electrode lead 7 as shown in FIG. To do. In the cutout concave portion 16, the fitted portion 17 into which the plate-shaped electrode lead fitting portion 12 of the lead wire 5 fits is circular, and the inlet portion 1
The reference numeral 8 is narrower than the fitted portion 17 so that the fitted lead wire 5 is hard to come out, and the outside thereof is widened so that the lead wire 5 can easily enter. Further, when the lead wire 5 is fitted into the notch recess 16, the notch 1 is cut into the bottom of the notch recess 16 so as to sandwich the lead wire 5 by spring elasticity.
9 is formed on the peripheral edge of the cutout recess 16 by a drawing process to project in the extending direction of the lead wire 5 to be fitted.
0 is formed to increase the bonding strength.
【００１３】[0013]
【発明の効果】本発明は、上述のように構成されている
ので、アキシャルリード形インダクタのリード線が磁性
コアから抜けたり、回転することがなく、また巻線端末
のリード線へのからげ部がゆるむことがなく、半田付け
が確実に行なわれるとともにアキシャルリード形インダ
クタの向きを考慮することなくそのリード線を板状電極
リードの切欠凹部に嵌合できるので、生産工程が簡単に
なる等の効果を有する。Since the present invention is constructed as described above, the lead wire of the axial lead type inductor does not come off from the magnetic core or rotate, and the lead wire of the winding end is not twisted. The part does not loosen, soldering is performed reliably, and the lead wire can be fitted into the notched recess of the plate electrode lead without considering the orientation of the axial lead type inductor, which simplifies the production process. Have the effect of.
【図１】 本発明の一実施例の一部截断正面図FIG. 1 is a partially cutaway front view of an embodiment of the present invention.
【図２】 上記実施例のリード線の正面図FIG. 2 is a front view of the lead wire of the above embodiment.
【図３】 （Ａ）及び（Ｂ）は、上記実施例の要部の一
部截断正面図及び（Ａ）のＢ−Ｂ線截断面図3 (A) and 3 (B) are partially cutaway front views of essential parts of the above-described embodiment and a sectional view taken along line BB of FIG. 3 (A).
【図４】 従来のアキシャルリード形インダクタの一部
截断正面図FIG. 4 is a partially cutaway front view of a conventional axial lead type inductor.
【図５】 従来のチップ状インダクタの斜視図FIG. 5 is a perspective view of a conventional chip inductor.
１ アキシャルリード形インダクタ ２ ドラム
形磁性コア ３ 巻線 ４ 端末 ５ リード線 ７ 板状電
極リード ８ 電極 ９ 大径部 １０ 磁性コア固着部 １１ 接着
剤流出防止用突起 １２ 板状電極リード嵌合部 １３ から
げ部 １４ 凹部 １５ 接着
剤 １６ 切欠凹部 １７ 被嵌
合部 １９ 切込 ２０ 突出
部1 Axial lead type inductor 2 Drum type magnetic core 3 Winding 4 Terminal 5 Lead wire 7 Plate electrode lead 8 Electrode 9 Large diameter part 10 Magnetic core fixing part 11 Adhesive outflow prevention protrusion 12 Plate electrode lead fitting part 13 Barbed portion 14 Recessed portion 15 Adhesive 16 Notched recessed portion 17 Fitted portion 19 Notched 20 Protruding portion
Claims (2)
前記磁性コアの両端面に形成した凹部において接着剤で
固着したリード線にからげて半田付けしたアキシャルリ
ード形インダクタのリード線を、板状電極リードの端縁
部に形成した切欠凹部に嵌合し、該リード線と板状電極
とを導電性接合剤により接合して成るチップ状インダク
タにおいて、前記リード線は、先端に大径部を有し外形
が断面非円形に形成された磁性コア固着部と、断面円形
の板状電極リード嵌合部と、断面角形のからげ部とを有
し、前記板状金属リードは、リード線の前記板状電極リ
ード嵌合部の被嵌合部が円形に形成された切欠凹部を有
することを特徴とするチップ状インダクタ。1. A winding is wound around a magnetic core and its end is
The lead wire of the axial lead type inductor, which is twisted and soldered to the lead wire fixed with an adhesive in the recess formed on both end surfaces of the magnetic core, is fitted into the cutout recess formed on the end edge of the plate electrode lead. In the chip-shaped inductor formed by joining the lead wire and the plate-like electrode with a conductive bonding agent, the lead wire has a large-diameter portion at the tip and has a non-circular cross-section. Part, a plate-shaped electrode lead fitting part having a circular cross section, and a barbed part having a rectangular cross-section, and the plate-shaped metal lead has a fitted part of the plate-shaped electrode lead fitting part of the lead wire. A chip-shaped inductor having a cutout recess formed in a circular shape.
は、切込が形成されたことを特徴とする請求項１記載の
チップ状インダクタ。2. The chip-shaped inductor according to claim 1, wherein a notch is formed in the bottom of the notched recess of the plate-shaped electrode lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34709992A JP2762008B2 (en) | 1992-12-25 | 1992-12-25 | Chip inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34709992A JP2762008B2 (en) | 1992-12-25 | 1992-12-25 | Chip inductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06196331A true JPH06196331A (en) | 1994-07-15 |
| JP2762008B2 JP2762008B2 (en) | 1998-06-04 |
Family
ID=18387906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34709992A Expired - Lifetime JP2762008B2 (en) | 1992-12-25 | 1992-12-25 | Chip inductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2762008B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100386077B1 (en) * | 2000-11-24 | 2003-06-09 | 아비코전자 주식회사 | An manufacture process of chip type inductor |
-
1992
- 1992-12-25 JP JP34709992A patent/JP2762008B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100386077B1 (en) * | 2000-11-24 | 2003-06-09 | 아비코전자 주식회사 | An manufacture process of chip type inductor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2762008B2 (en) | 1998-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980127 |