JPH0316774B2 - - Google Patents
Info
- Publication number
- JPH0316774B2 JPH0316774B2 JP56129905A JP12990581A JPH0316774B2 JP H0316774 B2 JPH0316774 B2 JP H0316774B2 JP 56129905 A JP56129905 A JP 56129905A JP 12990581 A JP12990581 A JP 12990581A JP H0316774 B2 JPH0316774 B2 JP H0316774B2
- Authority
- JP
- Japan
- Prior art keywords
- lead wire
- cathode
- fuse member
- conductive layer
- solid electrolytic
- 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.)
- Expired - Lifetime
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 25
- 239000003990 capacitor Substances 0.000 claims description 23
- 239000007787 solid Substances 0.000 claims description 13
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 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
- 241000972773 Aulopiformes Species 0.000 description 1
- 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
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 235000019515 salmon Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
Landscapes
- Primary Cells (AREA)
- Thermistors And Varistors (AREA)
- Fuel Cell (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【発明の詳細な説明】
本発明は安全機能を持たせた固体電解コンデン
サに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solid electrolytic capacitor with a safety function.
タンタル、アルミニウムのような弁作用金属を
陽極として用い、その陽極上に形成した陽極酸化
皮膜を誘電体として用い、さらにその陽極酸化皮
膜上に固体電解質として二酸化マンガン層、陰極
としてカーボン層、陰極導電層として銀ペイント
層を順次積層形成したタンタル固体電解コンデン
サ、アルミ固体電解コンデンサ等の固体電解コン
デンサは、特性の経時的劣化が少なく、また高い
信頼度を有する電子部品として、種々の電子回路
に使用されているが、故障時の故障モードが短絡
であるという欠点を有している。すなわち、短絡
によつて流れる短絡電流による発熱により、コン
デンサ素子の温度が急激に上昇してコンデンサ素
子が焼損してしまい、プリント基板の焼損という
事故につながる危険性がある。このため、固体電
解コンデンサに対して、故障時には回路的にオー
プンになる機能が要求されている。 A valve metal such as tantalum or aluminum is used as an anode, an anodized film formed on the anode is used as a dielectric, a manganese dioxide layer is used as a solid electrolyte on the anodized film, a carbon layer is used as a cathode, and a cathode conductor is used. Solid electrolytic capacitors, such as tantalum solid electrolytic capacitors and aluminum solid electrolytic capacitors, which have silver paint layers laminated in sequence, are used in various electronic circuits as their characteristics do not deteriorate over time and are highly reliable electronic components. However, it has the disadvantage that the failure mode at the time of failure is short circuit. That is, heat generated by the short-circuit current flowing due to the short circuit causes the temperature of the capacitor element to rise rapidly, causing the capacitor element to burn out, which may lead to an accident in which the printed circuit board burns out. For this reason, solid electrolytic capacitors are required to have a function of opening the circuit in the event of a failure.
本発明者らはこのような現状に鑑み、故障時に
回路的にオープンになる安全機能を持たせた固体
電解コンデンサを開発した。 In view of the current situation, the present inventors have developed a solid electrolytic capacitor that has a safety function that opens the circuit in the event of a failure.
この固体電解コンデンサは、第１図に示すよう
にコンデンサ素子１の陰極導電層と陰極引出しリ
ード線２とをヒユーズ部材３を介して接続固定す
るとともに、そのヒユーズ部材３と前記陰極導電
層および陰極引出しリード線２とを、前記陰極導
電層および陰極引出しリード線２上に形成されか
つ前記ヒユーズ部材３より融点の低い半田等の低
融点の導電層４を介して接続固定したものであ
る。 In this solid electrolytic capacitor, as shown in FIG. 1, the cathode conductive layer of a capacitor element 1 and the cathode lead wire 2 are connected and fixed via a fuse member 3, and the fuse member 3, the cathode conductive layer, and the cathode The lead wire 2 is connected and fixed to the cathode conductive layer and the cathode lead wire 2 through a conductive layer 4 having a low melting point, such as solder, which is formed on the cathode conductive layer and the cathode lead wire 2 and whose melting point is lower than that of the fuse member 3.
なお、５は陽極導出線、６は陽極引出しリード
線である。 Note that 5 is an anode lead wire, and 6 is an anode lead wire.
また、このような固体電解コンデンサを得る場
合、コンデンサ素子１の陰極導電層と陰極引出し
リード線２上に低融点の導電層４を形成し、その
後前記陰極導電層と陰極引出しリード線２を接続
するように導電層４にこの導電層４より融点の高
いヒユーズ部材３を当接させた状態で、前記導電
層４の融点温度より高くかつ前記ヒユーズ部材３
の融点温度より低い温度で当接部分を加熱して前
記ヒユーズ部材３と前記陰極導電層および陰極引
出しリード線２とを接続固定するものである。 In addition, when obtaining such a solid electrolytic capacitor, a conductive layer 4 having a low melting point is formed on the cathode conductive layer of the capacitor element 1 and the cathode lead wire 2, and then the cathode conductive layer and the cathode lead wire 2 are connected. With the fuse member 3 having a melting point higher than that of the conductive layer 4 in contact with the conductive layer 4 so as to
The fuse member 3, the cathode conductive layer, and the cathode lead wire 2 are connected and fixed by heating the abutting portion at a temperature lower than the melting point of the fuse member 3, the cathode conductive layer, and the cathode lead wire 2.
ところが、このような固体電解コンデンサにお
ける陰極引出しリード線２とヒユーズ部材３との
接続をサーモンコントロールリフロソルダー等の
方法で行つた場合、第２図に示すようにＡ部の強
度が弱くなることがある。 However, if the connection between the cathode lead wire 2 and the fuse member 3 in such a solid electrolytic capacitor is made using a method such as salmon control reflow soldering, the strength of part A may be weakened as shown in Figure 2. be.
本発明はこのような問題点を解決したものであ
り、本発明においては、陰極引出しリード線のヒ
ユーズ部材が接続される接続部に凹凸を設けたこ
とを特徴とするものである。 The present invention has solved these problems, and is characterized in that the connecting portion to which the fuse member of the cathode extraction lead wire is connected is provided with unevenness.
第３図に本発明の一実施例による固体電解コン
デンサを示し、第４図にその要部構造を示してお
り、すなわち陰極引出しリード線２のヒユーズ部
材３との接続部にローレツト加工を施して凹凸７
を設け、その上に半田８をコートし、そしてサー
モコントロールリフロソルダー法等により陰極引
出しリード線２とヒユーズ部材３とを接続固定し
たものである。 FIG. 3 shows a solid electrolytic capacitor according to an embodiment of the present invention, and FIG. 4 shows the structure of its main parts, that is, the connection part of the cathode lead wire 2 with the fuse member 3 is knurled. Unevenness 7
is provided, a solder 8 is coated thereon, and the cathode lead wire 2 and the fuse member 3 are connected and fixed by a thermo-control reflow soldering method or the like.
これによつて、第４図に示すようにヒユーズ部
材３の陰極引出しリード線２との接続部が陰極引
出しリード線２の凹凸７に食い込み、ヒユーズ部
材３の細くなる部分が少なくなり、陰極引出しリ
ード線２とヒユーズ部材３との接続強度が向上す
る。 As a result, as shown in FIG. 4, the connecting portion of the fuse member 3 with the cathode lead wire 2 bites into the unevenness 7 of the cathode lead wire 2, and the narrowed portion of the fuse member 3 is reduced. The connection strength between the lead wire 2 and the fuse member 3 is improved.
以上のように本発明によれば、コンデンサ素子
の陰極導電層と陰極引出しリード線とをヒユーズ
部材を介して接続固定し、かつ前記陰極引出しリ
ード線の前記ヒユーズ部材との接続部にローレツ
ト加工を施して凹凸を形成しているため、ヒユー
ズ部材と陰極引出しリード線との接続において
は、ヒユーズ部材は陰極引出しリード線のローレ
ツト加工による凹凸に食い込むことになり、その
結果、ヒユーズ部材の細くなる部分が少なくなる
ため、陰極引出しリード線とヒユーズ部材との接
続強度を、ローレツト加工による凹凸を設けるだ
けの簡単な構成により著しく向上させることがで
きるというすぐれた効果を有するものである。 As described above, according to the present invention, the cathode conductive layer of the capacitor element and the cathode lead wire are connected and fixed via a fuse member, and the connection portion of the cathode lead wire with the fuse member is knurled. When the fuse member and the cathode lead wire are connected, the fuse member will dig into the knurling process of the cathode lead wire, and as a result, the thinner part of the fuse member will become uneven. This has an excellent effect in that the strength of the connection between the cathode lead wire and the fuse member can be significantly improved with a simple structure of just providing unevenness by knurling.
第１図は本発明者らが以前に開発した固体電解
コンデンサを示す平面図、第２図は同コンデンサ
の要部構造を示す斜視図、第３図は本発明の一実
施例による固体電解コンデンサを示す平面図、第
４図は同コンデンサの要部構造を示す斜視図であ
る。
１……コンデンサ素子、２……陰極引出しリー
ド線、３……ヒユーズ部材、７……凹凸。
Fig. 1 is a plan view showing a solid electrolytic capacitor previously developed by the present inventors, Fig. 2 is a perspective view showing the main structure of the capacitor, and Fig. 3 is a solid electrolytic capacitor according to an embodiment of the present invention. 4 is a plan view showing the capacitor, and FIG. 4 is a perspective view showing the main structure of the capacitor. 1...Capacitor element, 2...Cathode extraction lead wire, 3...Fuse member, 7...Irregularities.
Claims (1)
ード線とをヒユーズ部材を介して接続固定し、か
つ前記陰極引出しリード線の前記ヒユーズ部材と
の接続部にローレツト加工を施して凹凸を形成し
たことを特徴とする固体電解コンデンサ。1. The cathode conductive layer of the capacitor element and the cathode lead wire are connected and fixed via a fuse member, and the connection portion of the cathode lead wire with the fuse member is knurled to form unevenness. solid electrolytic capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12990581A JPS5831511A (en) | 1981-08-19 | 1981-08-19 | Solid electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12990581A JPS5831511A (en) | 1981-08-19 | 1981-08-19 | Solid electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5831511A JPS5831511A (en) | 1983-02-24 |
| JPH0316774B2 true JPH0316774B2 (en) | 1991-03-06 |
Family
ID=15021284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12990581A Granted JPS5831511A (en) | 1981-08-19 | 1981-08-19 | Solid electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831511A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421730U (en) * | 1977-07-15 | 1979-02-13 | ||
| JPS54107030A (en) * | 1978-02-06 | 1979-08-22 | Nippon Denso Co Ltd | Auxiliary engine drive type automotive air conditioner |
-
1981
- 1981-08-19 JP JP12990581A patent/JPS5831511A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5421730U (en) * | 1977-07-15 | 1979-02-13 | ||
| JPS54107030A (en) * | 1978-02-06 | 1979-08-22 | Nippon Denso Co Ltd | Auxiliary engine drive type automotive air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5831511A (en) | 1983-02-24 |
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