JPH04240712A - Three-terminal-type solid-state electrolytic capacitor - Google Patents
Three-terminal-type solid-state electrolytic capacitorInfo
- Publication number
- JPH04240712A JPH04240712A JP736291A JP736291A JPH04240712A JP H04240712 A JPH04240712 A JP H04240712A JP 736291 A JP736291 A JP 736291A JP 736291 A JP736291 A JP 736291A JP H04240712 A JPH04240712 A JP H04240712A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor element
- anode
- cathode
- cathode lead
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 49
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 239000007784 solid electrolyte Substances 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は三端子型固体電解コンデ
ンサに関し、特にコンデンサ素子と外部引出しリード線
の接続方法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-terminal solid electrolytic capacitor, and more particularly to an improved method of connecting a capacitor element to an external lead wire.
【０００２】0002
【従来の技術】従来の三端子型固体電解コンデンサは図
３に示すとおりタンタル，ニオブ，アルミニウムなど弁
作用を有する金属粉末に陽極リードを植立させて、プレ
ス成形した陽極体の表面に順次陽極酸化層，固体電解質
層および陰極引出し層を形成させたコンデンサ素子１に
、まず陽極リード線２を接続し、次いで２本の陰極リー
ド線３ａ，３ｂをコンデンサ素子１に沿うように配置し
、はんだ４で接続し、絶縁樹脂５で外装した構造となっ
ていた。[Prior Art] As shown in Fig. 3, a conventional three-terminal solid electrolytic capacitor has an anode lead planted in a valve-acting metal powder such as tantalum, niobium, or aluminum, and the anode is successively placed on the surface of a press-formed anode body. First, the anode lead wire 2 is connected to the capacitor element 1 on which the oxide layer, solid electrolyte layer, and cathode lead layer have been formed, and then the two cathode lead wires 3a and 3b are placed along the capacitor element 1, and soldered. 4 and covered with insulating resin 5.
【０００３】0003
【発明が解決しようとする課題】この従来のコンデンサ
素子１と陰極リード線３ａ，３ｂの接続は、コンデンサ
素子１に対し、２本の陰極リード線３ａ，３ｂの配置が
正しく配置され、かつはんだ４による接続が正常に行な
われないと、２本の陰極リード線３ａ，３ｂのいずれか
がコンデンサ素子１との接続が不完全となる危険がある
。[Problems to be Solved by the Invention] The conventional connection between the capacitor element 1 and the cathode lead wires 3a, 3b is such that the two cathode lead wires 3a, 3b are correctly arranged with respect to the capacitor element 1, and the two cathode lead wires 3a, 3b are not soldered. If the connection by 4 is not made properly, there is a risk that either of the two cathode lead wires 3a, 3b will be incompletely connected to the capacitor element 1.
【０００４】たとえば、コンデンサ素子１が図３におい
て、右に片寄った場合、あるいは、陰極リード端子３ａ
が左にズレて配置された場合のいずれにおいても、はん
だ付後において陰極リード端子３ａは、コンデンサ素子
１との接続が不完全になる可能性がある。陰極リード端
子３ａとコンデンサ素子１との接続が不完全であると、
たとえ陰極リード端子３ｂとコンデンサ素子１との接続
が完全であっても、三端子型コンデンサとしての機能を
失なってしまう。For example, if the capacitor element 1 is shifted to the right in FIG.
In either case, the connection between the cathode lead terminal 3a and the capacitor element 1 may be incomplete after soldering. If the connection between the cathode lead terminal 3a and the capacitor element 1 is incomplete,
Even if the connection between the cathode lead terminal 3b and the capacitor element 1 is perfect, the function as a three-terminal capacitor will be lost.
【０００５】本発明の目的は、上述した従来の不具合の
発生を防止し、接続の確実性が得られ、かつ構造の安定
性を高め自動化が容易となると共に三端子型固体電解コ
ンデンサの機能を確保できる三端子型固体電解コンデン
サを提供することにある。The purpose of the present invention is to prevent the above-mentioned conventional problems, provide reliable connection, improve structural stability, facilitate automation, and improve the functionality of three-terminal solid electrolytic capacitors. The object of the present invention is to provide a three-terminal solid electrolytic capacitor that can be secured.
【０００６】[0006]
【課題を解決するための手段】本発明の三端子型固体電
解コンデンサは、弁作用金属から成る陽極性コンデンサ
素子に１本の陽極リード線と２本の陰極リード線を接続
し絶縁樹脂で外装してなる三端子型固体電解コンデンサ
において、２本の陰極リード線が連続した同一線材から
成ることを特徴とする。[Means for Solving the Problems] The three-terminal solid electrolytic capacitor of the present invention has one anode lead wire and two cathode lead wires connected to an anode capacitor element made of a valve metal, and the exterior is covered with an insulating resin. The three-terminal solid electrolytic capacitor is characterized in that the two cathode lead wires are made of the same continuous wire.
【０００７】[0007]
【実施例】次に本発明について図面を参照して説明する
。図１は本発明による第１の実施例を示す断面図である
。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings. FIG. 1 is a sectional view showing a first embodiment of the present invention.
【０００８】まず、タンタルのような弁作用を有する金
属粉末に同種金属線を植立させてプレス成形し真空焼結
した陽極体に公知の方法により酸化誘電体層，二酸化マ
ンガン層，グラファイト層，銀ペースト層を順次形成し
たコンデンサ素子１を製作する。First, metal wires of the same type are embedded in a metal powder having a valve action such as tantalum, press-formed, and vacuum sintered.The anode body is then coated with an oxide dielectric layer, a manganese dioxide layer, a graphite layer, etc. by a known method. A capacitor element 1 in which silver paste layers are sequentially formed is manufactured.
【０００９】次いで、コンデンサ素子１の陽極片６と陽
極リード線２を抵抗溶接で接続する。更に、コンデンサ
素子１の上部外周を取り囲むように成形された同一の線
材から成る陰極リード線３ａ，３ｂを図示するように配
置し、溶融はんだ層に浸漬させてコンデンサ素子１と陰
極リード３ａ，３ｂを、はんだ４で接続する。このよう
にして陽・陰極リード線２および３ａ，３ｂにコンデン
サ素子１を接続したものにエポキシ樹脂などによる絶縁
樹脂５を浸漬法で付着させ外装する。Next, the anode piece 6 of the capacitor element 1 and the anode lead wire 2 are connected by resistance welding. Further, cathode lead wires 3a and 3b made of the same wire material and formed to surround the upper outer periphery of the capacitor element 1 are arranged as shown in the figure, and immersed in the molten solder layer to connect the capacitor element 1 and the cathode leads 3a and 3b. Connect with solder 4. The capacitor element 1 is connected to the anode/cathode lead wires 2, 3a, 3b in this manner, and an insulating resin 5 made of epoxy resin or the like is applied by a dipping method for exterior packaging.
【００１０】図２は本発明の第２の実施例を示す断面図
である。図１の場合と同一の方法で製作したコンデンサ
素子１の陽極片６に陽極リード線２を抵抗溶接で接続す
る。更に、図示する如くコンデンサ素子１の本体外周に
沿うように成形された陽極リード線と同一の線材から成
る陰極リード線３ａ，３ｂを配置し、溶融はんだ層に浸
漬させてコンデンサ素子１と陰極リード線３ａ，３ｂを
はんだ４で接続する。次いで図１に示した第１の実施例
と同一の方法で絶縁樹脂５で外装する。FIG. 2 is a sectional view showing a second embodiment of the present invention. Anode lead wire 2 is connected to anode piece 6 of capacitor element 1 manufactured by the same method as in FIG. 1 by resistance welding. Further, as shown in the figure, cathode lead wires 3a and 3b made of the same wire material as the anode lead wire formed along the outer periphery of the capacitor element 1 are placed and immersed in the molten solder layer to connect the capacitor element 1 and the cathode lead. Connect wires 3a and 3b with solder 4. Next, it is covered with insulating resin 5 in the same manner as in the first embodiment shown in FIG.
【００１１】以上示した実施例において、コンデンサ素
子１の本体である陽極体の形状は通常多く使用されてい
る円筒形だけでなく角型などの形状であっても、同一の
線材から成る陰極リード線３ａ，３ｂはコンデンサ素子
１の上部外周あるいは本体外周を取り囲むように設計配
置すればよい。In the embodiments shown above, even though the shape of the anode body which is the main body of the capacitor element 1 is not only the commonly used cylindrical shape but also a rectangular shape, the cathode lead made of the same wire material The lines 3a and 3b may be designed and arranged so as to surround the upper outer periphery of the capacitor element 1 or the outer periphery of the main body.
【００１２】また外装は浸漬法だけでなくモールド外装
あるいはケース入れの場合であっても、本発明は有効で
ある。[0012] The present invention is also effective not only when packaging is done by dipping, but also by mold packaging or case packaging.
【００１３】[0013]
【発明の効果】以上説明したように本発明は、同一の線
材から成る陰極リード線をコンデンサ素子に接続するた
め、従来実施例に比べ陰極リード線のコンデンサ素子に
対する接続面積が飛躍的に大きくなり、接続がはずれる
心配がまったく無くなる。[Effects of the Invention] As explained above, in the present invention, since the cathode lead wire made of the same wire is connected to the capacitor element, the connection area of the cathode lead wire to the capacitor element is dramatically increased compared to the conventional embodiment. , there is no need to worry about disconnections.
【００１４】またコンデンサ素子の形状に合せて陰極リ
ード線の形状を予め決められるので、コンデンサを大量
に生産するときの構造安定性が高まり自動化が容易とな
る等の利点もある。Furthermore, since the shape of the cathode lead wire can be determined in advance in accordance with the shape of the capacitor element, there are advantages such as increased structural stability and ease of automation when mass producing capacitors.
【００１５】このように本発明は有極性コンデンサの三
端子化において優れた工業的価値を有するものである。As described above, the present invention has excellent industrial value in converting polarized capacitors into three terminals.
【図１】本発明の第１の実施例の断面図である。FIG. 1 is a sectional view of a first embodiment of the invention.
【図２】本発明の第２の実施例の断面図である。FIG. 2 is a sectional view of a second embodiment of the invention.
【図３】従来例の断面図である。FIG. 3 is a sectional view of a conventional example.
１ コンデンサ素子 ２ 陽極リード線 ３ａ，３ｂ 陰極リード線 ４ はんだ ５ 絶縁樹脂 1 Capacitor element 2 Anode lead wire 3a, 3b Cathode lead wire 4 Solder 5 Insulating resin
Claims (3)
を植立させてプレス成形した陽極体の表面に、順次陽極
酸化層・固体電解質層および陰極引出し層を形成させた
コンデンサ素子に、１本の陽極リード線と２本の陰極リ
ード線を接続し、絶縁樹脂で外装してなる三端子型固体
電解コンデンサにおいて、前記２本の陰極リード線が連
続した同一線材から成ることを特徴とする三端子型固体
電解コンデンサ。Claim 1: One lead is attached to a capacitor element in which an anode body is press-molded with an anode lead embedded in metal powder having a valve action, and an anodized layer, a solid electrolyte layer, and a cathode lead layer are sequentially formed on the surface of the anode body. A three-terminal solid electrolytic capacitor in which an anode lead wire and two cathode lead wires are connected and covered with an insulating resin, wherein the two cathode lead wires are made of the same continuous wire material. Terminal type solid electrolytic capacitor.
上部外周を取り囲むように成形され先端が２本の陰極リ
ード線として導出されることを特徴とする請求項１記載
の三端子型固体電解コンデンサ。2. The three-terminal solid electrolytic capacitor according to claim 1, wherein the cathode lead wire is formed so as to surround the outer periphery of the upper part of the main body of the capacitor element, and its tips are led out as two cathode lead wires.
外周に沿うよう成形され先端が２本の陰極リード線とし
て導出されることを特徴とする請求項１記載の三端子型
固体電解コンデンサ。3. The three-terminal solid electrolytic capacitor according to claim 1, wherein the cathode lead wire is formed so as to follow the outer periphery of the main body of the capacitor element, and its tips are led out as two cathode lead wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP736291A JPH04240712A (en) | 1991-01-25 | 1991-01-25 | Three-terminal-type solid-state electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP736291A JPH04240712A (en) | 1991-01-25 | 1991-01-25 | Three-terminal-type solid-state electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04240712A true JPH04240712A (en) | 1992-08-28 |
Family
ID=11663856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP736291A Pending JPH04240712A (en) | 1991-01-25 | 1991-01-25 | Three-terminal-type solid-state electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04240712A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5783020A (en) * | 1980-11-12 | 1982-05-24 | Matsushita Electric Ind Co Ltd | Solid electrolytic condenser and method of producing same |
| JPS57196519A (en) * | 1981-05-28 | 1982-12-02 | Matsushita Electric Ind Co Ltd | Method of producing open mode solid electrolyte condenser |
-
1991
- 1991-01-25 JP JP736291A patent/JPH04240712A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5783020A (en) * | 1980-11-12 | 1982-05-24 | Matsushita Electric Ind Co Ltd | Solid electrolytic condenser and method of producing same |
| JPS57196519A (en) * | 1981-05-28 | 1982-12-02 | Matsushita Electric Ind Co Ltd | Method of producing open mode solid electrolyte condenser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19980303 |