JPH056842A - Solid electrolytic capacitor - Google Patents
Solid electrolytic capacitorInfo
- Publication number
- JPH056842A JPH056842A JP18301991A JP18301991A JPH056842A JP H056842 A JPH056842 A JP H056842A JP 18301991 A JP18301991 A JP 18301991A JP 18301991 A JP18301991 A JP 18301991A JP H056842 A JPH056842 A JP H056842A
- Authority
- JP
- Japan
- Prior art keywords
- conductive paste
- solid electrolytic
- electrolytic capacitor
- cathode terminal
- color
- 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 22
- 239000007787 solid Substances 0.000 title claims abstract description 14
- 230000006866 deterioration Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 2
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical compound [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 3
- 239000010956 nickel silver Substances 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Conductive Materials (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は固体電解コンデンサに関
する。FIELD OF THE INVENTION The present invention relates to a solid electrolytic capacitor.
【０００２】[0002]
【従来の技術】タンタル等のモールド型固体電解コンデ
ンサは、例えば、コンデンサ素子から引き出したリード
線に陽極端子を接続するとともに、金属板からなる陰極
端子に導電性ペーストを塗布し、そこにコンデンサ素子
を載せて接続し、全体をモールド樹脂で被覆した構成に
なっている。陰極端子は、通常、洋白や４２アロイ、ニ
ッケル等を材質とし、銀白色である。また、導電性ペー
ストも同じ銀白色のものを用いていて、陰極端子に塗布
された否かその塗布量の多少を、陰極端子との輝きの違
いを利用して、肉眼で判別している。2. Description of the Related Art A molded solid electrolytic capacitor made of tantalum or the like has, for example, a lead wire drawn from a capacitor element, an anode terminal connected to the cathode terminal made of a metal plate, and a conductive paste applied to the capacitor element. Are mounted and connected, and the entire structure is covered with a mold resin. The cathode terminal is usually made of nickel silver, 42 alloy, nickel or the like, and is silver white. Also, the same silver-white paste is used as the conductive paste, and whether or not the conductive paste is applied to the cathode terminal is visually determined by utilizing the difference in brightness from the cathode terminal.
【０００３】しかし、導電性ペーストが陰極端子と同じ
銀白色であると、塗布されているか否か等を判別し難い
欠点がある。そして導電性ペーストが塗布されていなか
ったり塗布量が少ないと、接続不良となる欠点がある。However, if the conductive paste has the same silver-white color as the cathode terminal, there is a drawback that it is difficult to determine whether or not it has been applied. If the conductive paste is not applied or the applied amount is small, there is a drawback that connection failure occurs.
【０００４】本発明の目的は、以上の欠点を改良し、導
電性ペーストを見易くし、接続不良を防止できる固体電
解コンデンサを提供するものである。An object of the present invention is to provide a solid electrolytic capacitor which improves the above drawbacks, makes the conductive paste easy to see, and prevents connection failure.
【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、コンデンサ素子に導電性ペーストを介
して陰極端子を接続した固体電解コンデンサにおいて、
導電性ペーストが陰極端子と異なる色であることを特徴
とする固体電解コンデンサを提供するものである。In order to achieve the above object, the present invention provides a solid electrolytic capacitor in which a cathode terminal is connected to a capacitor element through a conductive paste,
The solid electrolytic capacitor is characterized in that the conductive paste has a color different from that of the cathode terminal.
【０００６】[0006]
【作用】導電性ペーストに顔料や染料を入れてその色を
陰極端子の色と違えているために、導電性ペーストを陰
極端子に塗布したか否かやその塗布量が多いか少ないか
等の判別を容易にできる。[Function] Since the color of the conductive paste is different from that of the cathode terminal when the pigment or dye is put in the conductive paste, it is determined whether the conductive paste is applied to the cathode terminal or whether the coating amount is large or small. It can be easily identified.
【０００７】[0007]
【実施例】以下、本発明を実施例に基づいて説明する。
図１はタンタル等の固体電解コンデンサを示す。１は、
コンデンサ素子であり、陽極リード線２を引き出してい
る。３は陽極リード線２に接続した陽極端子である。４
は、導電性ペースト５を介してコンデンサ素子１の周面
の陰極層に接続した陰極端子であり、洋白や４２アロイ
等の材質からなる。また、導電性ペースト５は、コロイ
ダルカーンボン（黒色）やベンガラ（赤色）、フタロシ
アニンブルー（青色）、フタロシアニングリーン（緑
色）等の顔料または染料を０．００１〜１．０wt％含
み、黒や青等に着色している。EXAMPLES The present invention will be described below based on examples.
FIG. 1 shows a solid electrolytic capacitor such as tantalum. 1 is
It is a capacitor element, and the anode lead wire 2 is drawn out. Reference numeral 3 is an anode terminal connected to the anode lead wire 2. Four
Is a cathode terminal connected to the cathode layer on the peripheral surface of the capacitor element 1 through the conductive paste 5, and is made of a material such as nickel silver or 42 alloy. The conductive paste 5 contains 0.001 to 1.0 wt% of a pigment or dye such as colloidal carbon (black), red iron oxide (Red), phthalocyanine blue (blue), and phthalocyanine green (green), and is black or blue. Etc. are colored.
【０００８】この実施例では、陰極端子４が洋白等の材
質で銀白色であるのに対して、導電性ペースト５は、顔
料や染料を含み黒色や赤色、青色、緑色になっているた
めに、容易に塗布しているか否か等を判別できる。In this embodiment, the cathode terminal 4 is made of a material such as nickel silver and is silver-white, whereas the conductive paste 5 is black, red, blue, or green containing pigments or dyes. In addition, it is possible to easily determine whether or not the application has been performed.
【０００９】次に、陰極端子に、コロイダルカーボンを
１．０wt％含む導電性ペーストを塗布し、その塗布状態
を画像認識システムにより確認して、上記実施例の構成
通りに形成した定格１６Ｖ、１μＦのモールドチップ型
タンタル固体電解コンデンサについて、従来例ととも
に、高温負荷試験及び耐湿性試験を行なった。従来例
は、顔料等を含まない導電性ペーストを用いその塗布状
態を肉眼で検査する以外は、実施例と同一条件とする。
高温負荷試験は、温度８５℃、印加電圧１６ＶＤＣ、放
置時間２０００Ｈｒとする。また、耐湿性試験は、温度
４０℃、湿度９５％ＲＨ、放置時間５００Ｈｒとする。
なお、試料数は、実施例及び従来例とも、各試験に対し
て１００ケづつとする。Next, a conductive paste containing 1.0 wt% of colloidal carbon was applied to the cathode terminal, the applied state was confirmed by an image recognition system, and a rating of 16 V and 1 μF formed according to the configuration of the above embodiment. With respect to the mold chip type tantalum solid electrolytic capacitor of, the high temperature load test and the moisture resistance test were performed together with the conventional example. In the conventional example, the same conditions as those of the example are used, except that a conductive paste containing no pigment or the like is used and the applied state is visually inspected.
In the high temperature load test, the temperature is 85 ° C., the applied voltage is 16 VDC, and the standing time is 2000 Hr. In the humidity resistance test, the temperature is 40 ° C., the humidity is 95% RH, and the standing time is 500 Hr.
In addition, the number of samples is 100 for each test in the example and the conventional example.
【００１０】高温負荷試験の結果は表１に示す通りとな
る。The results of the high temperature load test are shown in Table 1.
【００１１】[0011]
【表１】 [Table 1]
【００１２】表１から明らかな通り、試験後、容量（平
均値）の変化率は、実施例が約−０．４８％、従来例が
約−０．６８％となる。また、tanδ （平均値）及び漏
れ電流（平均値）の変化率は、実施例及び従来例とも０
％となる。すなわち、実施例は従来例と比較して容量の
劣化が少ない。As is apparent from Table 1, the rate of change in capacity (average value) after the test is about -0.48% in the example and about -0.68% in the conventional example. In addition, the change rates of tan δ (average value) and leakage current (average value) are 0 in both the example and the conventional example.
%. That is, the embodiment has less capacity deterioration than the conventional example.
【００１３】また、耐湿性試験結果を表２に示した。The results of the moisture resistance test are shown in Table 2.
【００１４】[0014]
【表２】 [Table 2]
【００１５】表２から、試験後、容量（平均値）の変化
率は、実施例が約０．２９％、従来例が約０．３９％と
なる。tanδ （平均値）は、実施例及び従来例とも０％
となる。そして漏れ電流（平均値）は、実施例が約−
７．１％、従来例が０％となる。この試験でも実施例の
方が従来例よりも劣化が少ない。From Table 2, after the test, the change rate of the capacity (average value) is about 0.29% in the example and about 0.39% in the conventional example. tan δ (average value) is 0% in both the example and the conventional example.
Becomes The leakage current (average value) is about −
7.1% and 0% in the conventional example. Even in this test, the example shows less deterioration than the conventional example.
【００１６】[0016]
【発明の効果】以上の通り、本発明によれば、導電性ペ
ーストを陰極端子と異なる色とすることにより、その塗
布状態を容易に判別でき、接続不良による劣化を改善で
き、また、画像認識システム等を用いて自動的に判別で
き、製造の容易な固体電解コンデンサが得られる。As described above, according to the present invention, by applying a color different from that of the cathode terminal to the conductive paste, it is possible to easily discriminate the coating state, to improve deterioration due to connection failure, and to perform image recognition. It is possible to obtain a solid electrolytic capacitor that can be automatically identified by using a system or the like and is easy to manufacture.
【図１】本発明の実施例の断面図を示す。FIG. 1 shows a cross-sectional view of an embodiment of the present invention.
１…コンデンサ素子、 ４…陰極端子、 ５…導電性ペ
ースト。1 ... Capacitor element, 4 ... Cathode terminal, 5 ... Conductive paste.
Claims (1)
て陰極端子を接続した固体電解コンデンサにおいて、導
電性ペーストが陰極端子と異なる色であることを特徴と
する固体電解コンデンサ。Claim: What is claimed is: 1. A solid electrolytic capacitor in which a cathode terminal is connected to a capacitor element through a conductive paste, wherein the conductive paste has a color different from that of the cathode terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18301991A JPH056842A (en) | 1991-06-27 | 1991-06-27 | Solid electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18301991A JPH056842A (en) | 1991-06-27 | 1991-06-27 | Solid electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH056842A true JPH056842A (en) | 1993-01-14 |
Family
ID=16128321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18301991A Pending JPH056842A (en) | 1991-06-27 | 1991-06-27 | Solid electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH056842A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02264417A (en) * | 1989-04-05 | 1990-10-29 | Matsushita Electric Ind Co Ltd | Solid electrolytic capacitor |
| JPH039508A (en) * | 1989-06-07 | 1991-01-17 | Nec Corp | Solid-state electrolytic capacitor |
-
1991
- 1991-06-27 JP JP18301991A patent/JPH056842A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02264417A (en) * | 1989-04-05 | 1990-10-29 | Matsushita Electric Ind Co Ltd | Solid electrolytic capacitor |
| JPH039508A (en) * | 1989-06-07 | 1991-01-17 | Nec Corp | Solid-state electrolytic capacitor |
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