JPH01106417A - Winding type electrolytic capacitor with fuse - Google Patents
Winding type electrolytic capacitor with fuseInfo
- Publication number
- JPH01106417A JPH01106417A JP62263454A JP26345487A JPH01106417A JP H01106417 A JPH01106417 A JP H01106417A JP 62263454 A JP62263454 A JP 62263454A JP 26345487 A JP26345487 A JP 26345487A JP H01106417 A JPH01106417 A JP H01106417A
- Authority
- JP
- Japan
- Prior art keywords
- fuse
- foil
- capacitor
- anode
- wound
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 33
- 238000004804 winding Methods 0.000 title abstract description 3
- 239000011888 foil Substances 0.000 claims abstract description 19
- 239000003792 electrolyte Substances 0.000 claims abstract description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 22
- 229910052782 aluminium Inorganic materials 0.000 abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 8
- 230000008646 thermal stress Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005476 soldering Methods 0.000 abstract description 4
- 239000008151 electrolyte solution Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000003292 diminished effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/14—Protection against electric or thermal overload
- H01G2/16—Protection against electric or thermal overload with fusing elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fuses (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はヒユーズ機構を内蔵した捲回型電解コンデンサ
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wound electrolytic capacitor with a built-in fuse mechanism.
従来の技術
近年、電子機器の小型化・高密度化が図られており、そ
れと共に安全性に対する要求も高まっている。そして、
電子部品側々についてもその安全性が要求されており、
特に電解コンデンサは、その故障の大部分が短絡故障で
あることから、その対策が急がれている。例えば、回路
の異常やコンデンサ自身の異常により短絡故障が発生す
ると、内部素子に過電流が流れるため、発熱したり、発
火してしまう危険性があり、周辺の電子部品や回路基板
に悪い影響を与えていた。BACKGROUND OF THE INVENTION In recent years, electronic devices have become smaller and more dense, and along with this, demands for safety have also increased. and,
Safety is also required for electronic components.
In particular, since most of the failures of electrolytic capacitors are short-circuit failures, countermeasures are urgently needed. For example, if a short-circuit failure occurs due to an abnormality in the circuit or the capacitor itself, overcurrent will flow through the internal elements, creating a risk of overheating or ignition, which may have a negative impact on surrounding electronic components and circuit boards. was giving.
そこで、従来はこの防止策としてコンデンサ内部にヒユ
ーズ機構を備えたものが考え出されており、例えば第６
図に示すように、コンデンサ素子１の陽極リード線２お
よび陰極リード線３を素子１に隣接した端子板４に接続
し、端子板４に設けられたヒユーズ素子５を介して端子
板陰ｆｆｌ ＩＪ−ド線６を引き出していた。Therefore, conventionally, as a measure to prevent this, capacitors equipped with a fuse mechanism inside the capacitor have been devised.
As shown in the figure, the anode lead wire 2 and cathode lead wire 3 of the capacitor element 1 are connected to the terminal plate 4 adjacent to the element 1, and the terminal plate negative ffl IJ is connected via the fuse element 5 provided on the terminal plate 4. - The lead wire 6 was pulled out.
発明が解決しようとする問題点
しかしながら、上記従来の技術では、ヒユーズ５をコン
デンサ素子１に実装する場合、位置決めし穴あけ加工を
施したプリント配線板からなる端子板４に、ヒユーズ６
および端子板陰極リード線６を接続してヒユーズ付端子
板４を作製しなければならず、またこれをコンデンサ素
子１に接続する際に、余分なリード線を切断加工しなけ
ればならず、製造工程が炉雑になると共に部品点数が多
くなっていた。Problems to be Solved by the Invention However, in the above conventional technology, when the fuse 5 is mounted on the capacitor element 1, the fuse 6 is mounted on the terminal board 4 made of a printed wiring board that has been positioned and drilled.
The fuse-equipped terminal plate 4 must be manufactured by connecting the terminal plate cathode lead wire 6, and when connecting this to the capacitor element 1, the excess lead wire must be cut. As the process became more complicated, the number of parts increased.
さらに、ヒユーズの実装時に、半田付は等の熱加工が必
要であり、この熱的なストレスにより、コンデンサ素子
１の特性を劣化させてしまう恐れがあった。Furthermore, when mounting the fuse, thermal processing such as soldering is required, and this thermal stress may deteriorate the characteristics of the capacitor element 1.
本発明はこのような従来の問題点を解決するものであり
、ヒユーズをコンデンサ素子へ実装する際の製造工数を
削減すると共に、部品点数を減らし、さらにヒユーズ実
装時の熱的ストレスによるコンデンサ特性への影響をな
くすことを目的としている。The present invention solves these conventional problems, and reduces the number of manufacturing steps when mounting fuses on capacitor elements, reduces the number of parts, and improves capacitor characteristics due to thermal stress during fuse mounting. The aim is to eliminate the effects of
問題点を解決するための手段
この目的を達成するために、本発明のヒユーズ付捲回型
電解コンデンサは、ヒユーズが陽極リード線もしくは陰
極リード線に接続され、これらのリード線がそれぞれ陽
極箔および陰極箔に接続され、これらの箔がそれぞれセ
パレータを介して巻回され、電解液もしくは電解質に含
浸された構成を有している。Means for Solving the Problems To achieve this object, the wound electrolytic capacitor with a fuse of the present invention has a fuse connected to an anode lead wire or a cathode lead wire, and these lead wires are respectively connected to an anode foil and a cathode lead wire. These foils are connected to cathode foils, each wrapped around a separator, and impregnated with an electrolytic solution or an electrolyte.
作用
この構成により、捲回型電解コンデンサにヒユーズ部材
を実装する際に、ヒユーズが接続されたリード線を、直
接箔に接続して巻回することができるため、従来のよう
な端子板を使用することも、コンデンサ本体に半田付け
する必要もなくなる。Effect: With this configuration, when mounting a fuse member on a wound electrolytic capacitor, the lead wire to which the fuse is connected can be connected directly to the foil and wound, making it possible to use a conventional terminal board. There is no need to solder the capacitor to the capacitor body.
実施例
以下、本発明の一実施例について、図面を参照しながら
説明する。第３図に示さｎるように、ヒユーズ７はヒユ
ーズ素子８を角型チップ状（２，Ｏｘ １．２５ Ｘ
０．５ｍｍ ）に分割し、鉄・銅・アルミニウム等の金
属からなる電極キャップ９を圧入し、半田付けして形成
される。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. As shown in FIG.
The electrode cap 9 made of metal such as iron, copper, or aluminum is press-fitted into the electrode cap 9 and soldered.
また、第２図に示されるように、ヒユーズ７は、電極キ
ャップ９の片側にスズメツキした鉄線（ｏ、６φ）のリ
ード線材１０を、もう一方に板厚が２００〜３００μｍ
程度のアルミニウムまたはスズメツキした銅等の金属か
らなるリード線偏平部１１を、溶接あるいは半田付けし
てヒユーズ付リード線１２を形成している。Further, as shown in FIG. 2, the fuse 7 has a lead wire 10 made of tinned iron wire (o, 6φ) on one side of the electrode cap 9, and a plate thickness of 200 to 300 μm on the other side.
A lead wire 12 with a fuse is formed by welding or soldering a lead wire flat portion 11 made of a metal such as aluminum or tinned copper.
さらに、第１図に示すようにヒユーズ付リード線１２は
、陰極アルミニウムエツチド箔１３に接続され、また通
常の陽極リード線１４は陽極アルミニウムエツチド化成
箔１５に接続され、これらをセパレータ１６を介して巻
回することにより、本実施例のヒユーズ付捲回型電解コ
ンデンサが得られる。Furthermore, as shown in FIG. 1, a fused lead wire 12 is connected to a cathode aluminum etched foil 13, and a normal anode lead wire 14 is connected to an anode aluminum etched chemically formed foil 15, which is connected to a separator 16. The wound electrolytic capacitor with a fuse of this example is obtained by winding the capacitor through the capacitor.
なお、ヒユーズ素子には第３図に示すように、厚さ０．
５（−ｍ）のアルミナセラミック基板１７上に、厚膜金
ペーストラ印刷塗布してＡｕ膜１８を形成し、次にＰｂ
（３７％ ）−Ｓｎ （６３％）共晶ハンダ合金の微
粉末を熱可塑性樹脂、活性フラックスおよび溶剤等によ
りペースト状１９にしたものを、Ａｕ膜１８状に印刷塗
布して乾燥固化させた合金密着型を用いている。Note that the fuse element has a thickness of 0.5 mm as shown in FIG.
An Au film 18 is formed on a 5 (-m) alumina ceramic substrate 17 by printing and coating a thick film gold paste, and then a Pb
(37%)-Sn (63%) Fine powder of eutectic solder alloy is made into a paste 19 using thermoplastic resin, activated flux, solvent, etc., and the alloy is printed and applied onto an Au film 18 and dried and solidified. A close contact type is used.
次に、上述のような方法で構成したヒユーズ付捲回型電
解コンデンサの漏れ電流特性について、定格１６Ｖ４７
μＦの製品を例にして説明する。Next, regarding the leakage current characteristics of the wound type electrolytic capacitor with a fuse configured in the manner described above,
This will be explained using μF products as an example.
なお、第４図は本実施例のコンデンサと従来例で述べた
コンデンサとを同時に電解液中に浸漬させ、定格電圧１
６ｖを印加してその電流値の経時変化を示したものであ
る。In addition, FIG. 4 shows that the capacitor of this embodiment and the capacitor described in the conventional example are immersed in an electrolytic solution at the same time, and the rated voltage is 1.
6V is applied and the change in current value over time is shown.
第４図の結果から明らかなように、本実施例（は従来例
よりも漏れ電流値を少なくすることができ、半田付ケに
よるコンデンサへの熱的ストレスをｍ消していることが
わかる。As is clear from the results shown in FIG. 4, this example can reduce the leakage current value compared to the conventional example, and it can be seen that the thermal stress on the capacitor due to soldering is eliminated.
発明の効果
以上の実施例の説明より明らかなように、本発明のヒユ
ーズ付捲回型電解コンデンサは、ヒユーズが接続された
リード線を直接箔に接続して巻回することができるため
、ヒユーズを実装する際の製造工数を大幅に削減するこ
とができると共に、部品点数を大幅に削減することがで
きる。また、コンデンサ本体に半田付けすることがなく
なるため、ヒユーズ実装時の熱的ストレスによるコンデ
ンサ特性への影響をなくすことができる。Effects of the Invention As is clear from the description of the embodiments above, the wound electrolytic capacitor with a fuse of the present invention has a lead wire connected to a fuse that can be directly connected to foil and then wound. It is possible to significantly reduce the number of manufacturing steps required for mounting the device, as well as the number of parts. Furthermore, since there is no need to solder the capacitor body, it is possible to eliminate the influence on capacitor characteristics due to thermal stress during fuse mounting.
第１図は本発明の一実施例におけるヒユーズ付捲回型コ
ンデンサの斜視図、第２図は同ヒユーズ付リード線の斜
視図、第３図ａおよびｂは同ヒュ−ズ部材の斜視図およ
び断面図、第４図は他の実施例における定格電圧印加時
の漏れ電流の経時変化を示した特性図、第６図は従来の
ヒユーズ付捲回型コンデンサの斜視図である。
１２・・・・・・ヒユーズ付リード線、１３・・・・・
・陰極アルミニウムエツチド箔、１４・・・・・・陽極
リード線、１５・・・・・・陽極アルミニウムエツチド
箔、１６・・・・・・セパレータ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名７−
−じユース°゛
１２−−−ヒュース゛°イ寸す−ド未にｔ３−＄、府東
アルミニウムエヅチド箔１４−ｍ−陽極り−だ珠
！６−ｔパレータ
第１図
Ａ名電流！ 因FIG. 1 is a perspective view of a wound type capacitor with a fuse according to an embodiment of the present invention, FIG. 2 is a perspective view of a lead wire with a fuse, and FIGS. 3a and 3b are perspective views of the fuse member and A sectional view, FIG. 4 is a characteristic diagram showing the change in leakage current over time when a rated voltage is applied in another embodiment, and FIG. 6 is a perspective view of a conventional wound type capacitor with a fuse. 12...Lead wire with fuse, 13...
- Cathode aluminum etched foil, 14... Anode lead wire, 15... Anode aluminum etched foil, 16... Separator. Name of agent: Patent attorney Toshio Nakao and 1 other person7-
- Same use °゛゛12--Fuse゛゛゛゛゛゛゛゛゛゛゛゛ , 6-t parator Figure 1 A name current! Cause
Claims (1)
され、前記陽極リード線及び陰極リード線がそれぞれ陽
極箔および陰極箔に接続され、前記陽極箔及び陰極箔が
それぞれセパレータを介して巻回され、電解液もしくは
電解質に含浸されたヒューズ付捲回型電解コンデンサ。A fuse is connected to an anode lead wire or a cathode lead wire, the anode lead wire and the cathode lead wire are connected to an anode foil and a cathode foil, respectively, the anode foil and the cathode foil are respectively wound through a separator, and the electrolyte is Or a wound electrolytic capacitor with a fuse impregnated with electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62263454A JP2621236B2 (en) | 1987-10-19 | 1987-10-19 | Wound electrolytic capacitor with fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62263454A JP2621236B2 (en) | 1987-10-19 | 1987-10-19 | Wound electrolytic capacitor with fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01106417A true JPH01106417A (en) | 1989-04-24 |
| JP2621236B2 JP2621236B2 (en) | 1997-06-18 |
Family
ID=17389737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62263454A Expired - Lifetime JP2621236B2 (en) | 1987-10-19 | 1987-10-19 | Wound electrolytic capacitor with fuse |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2621236B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0321840U (en) * | 1989-07-12 | 1991-03-05 | ||
| WO2008029694A1 (en) * | 2006-09-07 | 2008-03-13 | Panasonic Corporation | Condenser lead wire, its manufacturing method, and condenser using them |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5490654U (en) * | 1977-12-09 | 1979-06-27 | ||
| JPS55156434U (en) * | 1979-04-27 | 1980-11-11 |
-
1987
- 1987-10-19 JP JP62263454A patent/JP2621236B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5490654U (en) * | 1977-12-09 | 1979-06-27 | ||
| JPS55156434U (en) * | 1979-04-27 | 1980-11-11 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0321840U (en) * | 1989-07-12 | 1991-03-05 | ||
| WO2008029694A1 (en) * | 2006-09-07 | 2008-03-13 | Panasonic Corporation | Condenser lead wire, its manufacturing method, and condenser using them |
| JP2008091846A (en) * | 2006-09-07 | 2008-04-17 | Matsushita Electric Ind Co Ltd | Lead wire for capacitor, its manufacturing method, and capacitor using lead wire |
| US8184429B2 (en) | 2006-09-07 | 2012-05-22 | Panasonic Corporation | Capacitor lead wire, its manufacturing method, and capacitor using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2621236B2 (en) | 1997-06-18 |
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