JPH02162713A - Fused solid electrolytic capacitor - Google Patents
Fused solid electrolytic capacitorInfo
- Publication number
- JPH02162713A JPH02162713A JP31796088A JP31796088A JPH02162713A JP H02162713 A JPH02162713 A JP H02162713A JP 31796088 A JP31796088 A JP 31796088A JP 31796088 A JP31796088 A JP 31796088A JP H02162713 A JPH02162713 A JP H02162713A
- Authority
- JP
- Japan
- Prior art keywords
- fuse
- cathode terminal
- cathode
- solid electrolytic
- insulating
- 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 description 25
- 239000007787 solid Substances 0.000 title claims description 22
- 239000012212 insulator Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 239000011810 insulating material Substances 0.000 abstract description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 abstract description 2
- 238000005476 soldering Methods 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000272201 Columbiformes Species 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はヒユーズ付き固体電解コンデンサに関し、特に
ヒユーズによる陰極接続部の構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a solid electrolytic capacitor with a fuse, and more particularly to the structure of a cathode connection portion using a fuse.
一般に固体電解コンデンサは、種々の電子回路に使用さ
れており、故障率は小さいが、万一、回路中で固体電解
コンデンサが故障した場合には短絡となることが多く、
大きな短絡電流が流れるとコンデンサ素子が発熱し焼損
することもある。このコンデンサの短絡故障発生の際、
他の回路構成素子を保護するために短絡したら開放にす
る機構、−船釣にはヒユーズを用いる手段が知られてい
る。Generally, solid electrolytic capacitors are used in various electronic circuits and have a low failure rate, but if a solid electrolytic capacitor fails in a circuit, it will often result in a short circuit.
If a large short-circuit current flows, the capacitor element may generate heat and burn out. In the event of a short-circuit failure of this capacitor,
Mechanisms for opening circuits in the event of short circuits in order to protect other circuit components - Means using fuses for boat fishing are known.
従来技術としては第３図に示すように、固体電解コンデ
ンサ素子１１の外周の陰極層１１ａの一部を絶縁物１４
で被覆し、絶縁物１４上を横断し、陰極層１１ａと外部
陰極端子１５との間をヒユーズ１６にて接続し、絶縁外
装したことを特徴とするヒユーズ付き固体電解コンデン
サがある。As shown in FIG. 3, in the prior art, a part of the cathode layer 11a on the outer periphery of the solid electrolytic capacitor element 11 is covered with an insulator 14.
There is a solid electrolytic capacitor with a fuse, which is characterized in that it is coated with an insulating material, crosses over the insulator 14, connects the cathode layer 11a and the external cathode terminal 15 with a fuse 16, and has an insulating exterior.
上述した従来のヒユーズ付き固体電解コンデンサは、素
子外周の陰極層の一部を被覆した絶縁物上を横断するヒ
ユーズによって陰極層と陰極端子とが接続されるため、
−ａにチェーンリード線に組み立てられた陽極端子への
素子溶接後の素子位置あるいは素子の表面状態のばらつ
きにより絶縁被覆部分の長さの精度が悪く、その結果、
第３図（ａ）、（ｂ）に示すようにヒユーズの長さが一
定にならず、即ち溶断特性がばらつきやすいという欠点
がある。In the above-mentioned conventional solid electrolytic capacitor with a fuse, the cathode layer and the cathode terminal are connected by a fuse that crosses over an insulator covering a part of the cathode layer around the element.
-a, the accuracy of the length of the insulation coating is poor due to variations in the element position after welding to the anode terminal assembled on the chain lead wire or in the surface condition of the element, and as a result,
As shown in FIGS. 3(a) and 3(b), there is a drawback that the length of the fuse is not constant, that is, the fusing characteristics tend to vary.
本発明の目的は、従来の欠点を除去し、ヒユーズの長さ
の精度をあげ、ヒユーズの溶断特性のばらつきを小さく
することができるヒユーズ付き固体電解コンデンサを提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a solid electrolytic capacitor with a fuse that can eliminate the drawbacks of the conventional capacitor, improve the precision of the length of the fuse, and reduce variations in the fusing characteristics of the fuse.
本発明のヒユーズ付き固体電解コンデンサは、陰極層の
一部を残して絶縁物で被覆された固体電解コンデンサ素
子と、前記絶縁物上に設置された陰極端子と、露出した
陰極層と前記陰極端子との間に接続されたヒユーズとを
有するヒユーズ付き固体電解コンデンサにおいて、前記
陰極端子先端部が絶縁物で被覆され、前記ヒユーズが陰
極端子先端部の絶縁物上を横断し陰極端子と露出しな陰
極層との間に接続されていることを特徴として構成され
る。The fused solid electrolytic capacitor of the present invention includes a solid electrolytic capacitor element covered with an insulating material leaving a part of the cathode layer, a cathode terminal installed on the insulator, an exposed cathode layer, and the cathode terminal. In the solid electrolytic capacitor with a fuse, the cathode terminal tip is covered with an insulator, and the fuse crosses over the insulator at the cathode terminal tip and is not exposed to the cathode terminal. The structure is characterized in that it is connected between the cathode layer and the cathode layer.
次に、本発明の実施例を図面を参照して説明する。第１
図（ａ）、（ｂ）は、本発明の一実施例のヒユーズ付き
固体電解コンデンサの斜視図及び実施例に使用する陰極
端子のヒユーズ設置前の平面図である。第１図（ａ）、
（ｂ）において、１は固体電解コンデンサ素子（以後、
素子と略記）、１ａは素子外周部に設けた陰極層、２は
素子１から植立または溶接により導出した陽極リード線
、３は陽極端子、４は絶縁物、５は陰極端子、５ａは陰
極端子絶縁部、６はヒユーズである。Next, embodiments of the present invention will be described with reference to the drawings. 1st
Figures (a) and (b) are a perspective view of a solid electrolytic capacitor with a fuse according to an embodiment of the present invention, and a plan view of a cathode terminal used in the embodiment before the fuse is installed. Figure 1(a),
In (b), 1 is a solid electrolytic capacitor element (hereinafter referred to as
(abbreviated as element), 1a is a cathode layer provided on the outer periphery of the element, 2 is an anode lead wire led out from element 1 by planting or welding, 3 is an anode terminal, 4 is an insulator, 5 is a cathode terminal, 5a is a cathode The terminal insulating section 6 is a fuse.
組み立て工程中は一般に陰極端子はチェーン上に精度よ
く組み立てられているために、陽極端子に溶接され位置
のばらつきが発生しやすく、表面状態も各々異なる素子
を一定寸法に絶縁被覆することは困難であり、本実施例
による陰極端子を絶縁被覆する方が精度よく製造できる
。During the assembly process, cathode terminals are generally precisely assembled on a chain, so they are welded to anode terminals and their positions tend to vary, and it is difficult to insulate elements with different surface conditions to a uniform size. However, if the cathode terminal of this embodiment is coated with insulation, it can be manufactured with higher precision.
そこで、まず所望の形状に整形された陰極端子（本実施
例ではＬ字状に屈曲されている）の先端部全周を、例え
ば熱硬化性のシリコーン樹脂を材料とする絶縁樹脂など
により絶縁処理する。Therefore, first, the entire circumference of the tip of the cathode terminal (bent in an L-shape in this example) that has been shaped into a desired shape is insulated using an insulating resin made of thermosetting silicone resin. do.
引き続き、陽極端子に溶接された素子の陰極層の一部を
やはり熱硬化性のシリコーン樹脂などの絶縁樹脂により
被覆し、陰極端子の非絶縁物が陰極層に接触しないよう
にする。Subsequently, a portion of the cathode layer of the element welded to the anode terminal is coated with an insulating resin such as a thermosetting silicone resin to prevent non-insulating materials of the cathode terminal from coming into contact with the cathode layer.
次に、ヒユーズを陰極端子先端部の絶縁物上を横断させ
て、陰極端子の非絶縁部と素子外周部の陰極層１ａとの
間に導電性接着材あるいは半田付けなどにより接続する
。Next, the fuse is made to cross over the insulator at the tip of the cathode terminal, and is connected between the non-insulated portion of the cathode terminal and the cathode layer 1a on the outer periphery of the device using a conductive adhesive or soldering.
この接続時運電性接着材あるいは半田は絶縁物領域には
達しないのでヒユーズの長さは実質的に陰極端子の絶縁
部の長さと等価になるという特徴が得られる。During this connection, the conductive adhesive or solder does not reach the insulating region, so that the length of the fuse is substantially equivalent to the length of the insulating portion of the cathode terminal.
第２図は本発明の他の実施例のヒユーズ付き固体電解コ
ンデンサの斜視図である。陰極端子５は素子１の形状に
合わせて直線状である。この実施例では、陰極端子５が
直線状であるため、陰極端子先端部の絶縁部５ａの長さ
、即ちヒユーズの長さを自由に変えることができ、陰極
端子先端部をＬ字状にした第１の実施例よりもヒユーズ
の溶断特性の制御が容易になるという利点がある。FIG. 2 is a perspective view of a solid electrolytic capacitor with a fuse according to another embodiment of the present invention. The cathode terminal 5 is linear in accordance with the shape of the element 1. In this embodiment, since the cathode terminal 5 is linear, the length of the insulating part 5a at the tip of the cathode terminal, that is, the length of the fuse, can be freely changed, and the tip of the cathode terminal is shaped like an L. This embodiment has the advantage that the fusing characteristics of the fuse can be more easily controlled than in the first embodiment.
以上説明したように、チェーンリード線に組み立てられ
た陰極端子の精度の良さを利用した陰極端子先端部の絶
縁被覆を行なうことにより、ヒユーズの長さの精度を上
げることができ、その結果ヒユーズの溶断時・性のばら
つきを小さくできるという効果が得られる。As explained above, by applying insulation coating to the tip of the cathode terminal that takes advantage of the high precision of the cathode terminal assembled on the chain lead wire, it is possible to improve the precision of the length of the fuse. This has the effect of reducing the variation in fusing properties.
第１図（ａ）、（ｂ）は本発明の一実施例のヒユーズ付
き固体電解コンデンサの斜視図及びこれに使用する陰極
端子のヒユーズが設置される前の平面図、第２図は本発
明の他の実施例のヒユーズ付き固体電解コンデンサの斜
視図、第３図（ａ）。
（ｂ）は何れも従来のヒユーズ付き固体電解コンンデン
サの斜視図である。
１，１１・・・固体電解コンデンサ素子、ｌａ。
１１ａ・・・陰極層、２，１２・・・陽極リード線、３
゜１３・・・陽極端子、４，１４・・・絶縁物、５，１
５・・・陰極端子、５ａ、１５ａ・・・陰極端子絶縁部
、６゜１６・・・ヒユーズ。
、淑慮極鳩予農處習1(a) and 1(b) are a perspective view of a solid electrolytic capacitor with a fuse according to an embodiment of the present invention, and a plan view of the cathode terminal used therein before the fuse is installed, and FIG. 2 is a perspective view of a solid electrolytic capacitor with a fuse according to an embodiment of the present invention. FIG. 3(a) is a perspective view of another embodiment of a solid electrolytic capacitor with a fuse. (b) is a perspective view of a conventional solid electrolytic capacitor with a fuse. 1, 11...Solid electrolytic capacitor element, la. 11a... Cathode layer, 2, 12... Anode lead wire, 3
゜13...Anode terminal, 4,14...Insulator, 5,1
5... Cathode terminal, 5a, 15a... Cathode terminal insulator, 6°16... Fuse. , the most prudent pigeon pre-agricultural practice
Claims (1)
ンデンサ素子と、前記絶縁物上に配置された陰極端子と
、露出した陰極層と前記陰極端子との間に接続されたヒ
ューズとを有するヒューズ付き固体電解コンデンサにお
いて、前記陰極端子先端部が絶縁物で被覆され、前記ヒ
ューズが陰極端子先端部の絶縁物上を横断し陰極端子と
露出した陰極層との間に接続されていることを特徴とす
るヒューズ付き固体電解コンデンサ。A solid electrolytic capacitor element covered with an insulator leaving a part of the cathode layer, a cathode terminal disposed on the insulator, and a fuse connected between the exposed cathode layer and the cathode terminal. In the solid electrolytic capacitor with a fuse, the cathode terminal tip is covered with an insulator, and the fuse crosses over the insulator at the cathode terminal tip and is connected between the cathode terminal and the exposed cathode layer. A solid electrolytic capacitor with a fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63317960A JP2764973B2 (en) | 1988-12-15 | 1988-12-15 | Solid electrolytic capacitor with fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63317960A JP2764973B2 (en) | 1988-12-15 | 1988-12-15 | Solid electrolytic capacitor with fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02162713A true JPH02162713A (en) | 1990-06-22 |
| JP2764973B2 JP2764973B2 (en) | 1998-06-11 |
Family
ID=18093917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63317960A Expired - Lifetime JP2764973B2 (en) | 1988-12-15 | 1988-12-15 | Solid electrolytic capacitor with fuse |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2764973B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04253315A (en) * | 1991-01-29 | 1992-09-09 | Nec Corp | Polarized capacitor with built-in fuse and its manufacture |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62107436U (en) * | 1985-12-25 | 1987-07-09 | ||
| JPS6315037U (en) * | 1986-07-11 | 1988-02-01 |
-
1988
- 1988-12-15 JP JP63317960A patent/JP2764973B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62107436U (en) * | 1985-12-25 | 1987-07-09 | ||
| JPS6315037U (en) * | 1986-07-11 | 1988-02-01 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04253315A (en) * | 1991-01-29 | 1992-09-09 | Nec Corp | Polarized capacitor with built-in fuse and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2764973B2 (en) | 1998-06-11 |
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