JPH04119614A - Aluminum electrolytic capacitor - Google Patents
Aluminum electrolytic capacitorInfo
- Publication number
- JPH04119614A JPH04119614A JP2240815A JP24081590A JPH04119614A JP H04119614 A JPH04119614 A JP H04119614A JP 2240815 A JP2240815 A JP 2240815A JP 24081590 A JP24081590 A JP 24081590A JP H04119614 A JPH04119614 A JP H04119614A
- Authority
- JP
- Japan
- Prior art keywords
- foil
- tape
- paper
- aluminum electrolytic
- cathode
- 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 57
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 36
- 239000011888 foil Substances 0.000 claims abstract description 115
- 239000003792 electrolyte Substances 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 16
- 239000000123 paper Substances 0.000 claims description 39
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 22
- 244000025254 Cannabis sativa Species 0.000 claims description 5
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 5
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 5
- 235000009120 camo Nutrition 0.000 claims description 5
- 235000005607 chanvre indien Nutrition 0.000 claims description 5
- 239000011487 hemp Substances 0.000 claims description 5
- 239000002655 kraft paper Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Landscapes
- 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
本発明は各種の電子機器に利用されるアルミ電解コンデ
ンサに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an aluminum electrolytic capacitor used in various electronic devices.
従来の技術
従来のこの種のアルミ電解コンデンサは、第４図に示す
ような構成となっていた。すなわち、粗面化したアルミ
箔の表面に陽極酸化によって誘電体酸化皮膜を形成した
陽極箔１とアルミ箔よりなる陰極箔２を対極させ、そし
てこの陽極箔１と陰極箔２の間にセパレータ紙３を介在
させて巻回することによりコンデンサ素子４を構成し、
かつこのコンデンサ素子４に駆動用電解液を含浸させ、
その後、こ・のコンデンサ素子４をアルミニウムよりな
る有底円筒状の金属ケース５内に収納し、そしてこの金
属ケース５の開口部に、前記コンデンサ素子４に接続し
た一対のリード線４ａ、４ｂが外部に導出されるように
弾性封口体６を装着し、かつ金属ケース５と弾性封口体
６とを巻締め封止することにより、金属ケース５の内部
の駆動用電解液が蒸発しないように構成していた。2. Description of the Related Art A conventional aluminum electrolytic capacitor of this type has a structure as shown in FIG. That is, an anode foil 1 having a dielectric oxide film formed on the roughened surface of the aluminum foil by anodizing and a cathode foil 2 made of aluminum foil are placed as opposite electrodes, and a separator paper is placed between the anode foil 1 and the cathode foil 2. A capacitor element 4 is constructed by winding the capacitor element 4 with the capacitor 3 interposed therebetween.
and impregnating this capacitor element 4 with a driving electrolyte,
Thereafter, this capacitor element 4 is housed in a bottomed cylindrical metal case 5 made of aluminum, and a pair of lead wires 4a and 4b connected to the capacitor element 4 are inserted into the opening of this metal case 5. The structure is such that the driving electrolyte inside the metal case 5 does not evaporate by attaching the elastic sealing body 6 so as to be led out to the outside and sealing the metal case 5 and the elastic sealing body 6 by wrapping. Was.
発明が解決しようとする課題
上記した従来のアルミ電解コンデンサにおける陽極箔１
および陰極箔２は、第５図に示すように、あらかじめ必
要幅に切断されたロール箔７から必要な長さの分量だけ
切断し、そして第６図に示すように、陽極箔１と陰極箔
２にそれぞれリード線４ａ、４ｂを接続した後、第６図
に示すような位置関係すなわち陽極箔１と陰極箔２の間
にセパレータ紙３が介在されるような位置関係にして、
これらを巻回することにより、コンデンサ素子４が構成
される。Problems to be Solved by the Invention Anode foil 1 in the above-mentioned conventional aluminum electrolytic capacitor
As shown in FIG. 5, the cathode foil 2 is cut to the required length from a roll foil 7 that has been previously cut to the required width, and as shown in FIG. 6, the anode foil 1 and the cathode foil After connecting the lead wires 4a and 4b to the terminals 2 and 2, the positions are set as shown in FIG. 6, that is, the separator paper 3 is interposed between the anode foil 1 and the cathode foil 2.
By winding these, the capacitor element 4 is constructed.
しかしながら、このような方法においては、どうしでも
陽極箔１および陰極箔２と一対のリード線４ａ、４ｂと
の接続部における盛り上がり部や一対のリード線４ａ、
４ｂの平坦部のエツジ等の凸部と、これらと対極する電
極箔との間に巻回時のストレスが集中するため、巻取時
あるいは組立・完成時においてショートの発生が増大す
るという問題点があった。However, in such a method, the raised portions at the connections between the anode foil 1 and the cathode foil 2 and the pair of lead wires 4a, 4b, the pair of lead wires 4a,
The problem is that the stress during winding is concentrated between the convex parts such as the edges of the flat part of 4b and the electrode foil that opposes them, which increases the occurrence of short circuits during winding or assembly/completion. was there.
また、第５図に示すように必要な長さの分量だけ切断さ
れた陽極箔１および陰極箔は、その両端部８ａ、８ｂを
切断する場合、第７図に示すように、切断刃９が箔面に
対して直角方向に押し切って行く形となるため、切断バ
リ１０が生じていた。そしてこの切断バリ１０が生じた
状態で、陽極箔１および陰極箔２をセパレータ紙３とと
もに巻回してコンデンサ素子４を構成した場合、前記切
断バリ１０と対極する電極箔との間に巻回時のストレス
が集中するため、巻取時あるいは組立・完成時において
ショートの発生が増大するという問題点があった。Further, when cutting both ends 8a and 8b of the anode foil 1 and cathode foil cut to the required length as shown in FIG. 5, the cutting blade 9 is used as shown in FIG. Cutting burrs 10 were generated because the foil was cut in a direction perpendicular to the foil surface. When the capacitor element 4 is constructed by winding the anode foil 1 and the cathode foil 2 together with the separator paper 3 in a state where the cutting burr 10 is generated, when the winding occurs between the cutting burr 10 and the opposite electrode foil. Since the stress is concentrated, there is a problem in that the occurrence of short circuits increases during winding or assembly/completion.
一方、このような問題点を改善する目的で、本・発明者
らは、第８図に示すようなアルミ電解コンデンサ用のセ
パレータ紙からなる基材１１の片面の全面に粘着剤１２
を塗布したテープ１３を用い、このテープ１３で、一対
のリード線と電極箔の接続部および電極箔の長さ方向の
両端の切断部を被覆してこれらの部分の巻回時における
ストレスを緩和させようとする対策を試みた。On the other hand, in order to improve such problems, the present inventors applied an adhesive 12 to the entire surface of one side of a base material 11 made of separator paper for aluminum electrolytic capacitors as shown in FIG.
Using the tape 13 coated with the above, the tape 13 covers the connection between the pair of lead wires and the electrode foil and the cut portions at both ends of the electrode foil in the length direction to alleviate stress during winding of these parts. I tried measures to prevent it.
しかしながら、上記対策におけるテープ１３においては
、アルミ電解コンデンサ用のセパレータ紙からなる基材
１１の片面の全面に粘着剤１２を塗布していたため、こ
のテープ１３で一対のリード線と電極箔との接続部およ
び電極箔の長さ方向の両端の切断部を被覆してコンデン
サ素子を組立てた後、駆動用電解液を含浸させた時、セ
パレータ紙からなる基材１１にはすみやかに駆動用電解
液は浸透するが、粘着剤１２への駆動用電解液の浸透は
時間がかかるため、実際は、静電容量等の特性を検査す
る時に、特性が安定するのを待って検査をするという具
合に、通常より余分な時間を必要とするもので、これに
より生産性が低下するという問題点があった。However, in the tape 13 in the above measure, since the adhesive 12 was applied to the entire surface of one side of the base material 11 made of separator paper for aluminum electrolytic capacitors, this tape 13 was used to connect the pair of lead wires and the electrode foil. After assembling the capacitor element by covering the cut parts at both lengthwise ends of the electrode foil and impregnating it with the driving electrolyte, the driving electrolyte is immediately absorbed into the base material 11 made of separator paper. However, since it takes time for the driving electrolyte to penetrate into the adhesive 12, in reality, when testing characteristics such as capacitance, it is usually done after waiting for the characteristics to stabilize. This method requires more time, which poses a problem in that productivity decreases.
本発明はこのような問題点を解決するもので、電極箔へ
の駆動用電解液の浸透が短時間で済み、かつ含浸後は設
計通りの静電容量を取り出すことができるアルミ電解コ
ンデンサを提供することを目的とするものである。The present invention solves these problems, and provides an aluminum electrolytic capacitor that allows the drive electrolyte to penetrate into the electrode foil in a short period of time, and after impregnation, can extract the designed capacitance. The purpose is to
課題を解決するための手段
上記目的を達成するために本発明のアルミ電解コンデン
サは、陽極箔と陰極箔との間にセパレータ紙を介在させ
て巻回することにより構成されるコンデンサ素子と、前
記陽極箔と陰極箔に接続される一対のリード線とを有し
、前記陽極箔および陰極箔と一対のリード線との接続部
における凸部と、前記陽極箔と陰極箔の長さ方向の両端
の切断部をテープで被覆し、かつこのテープは、駆動用
電解液を浸透させるマニラ紙、クラフト紙、エスパルト
紙、紅麻紙のいずれか１つの紙あるいはそれらを混合し
てできたアルミ電解コンデンサ用のセパレータ紙よりな
る基材の片面の一部分のみに駆動用電解液を浸透させる
粘着剤を塗布することにより構成したものである。Means for Solving the Problems In order to achieve the above object, the aluminum electrolytic capacitor of the present invention includes a capacitor element formed by winding an anode foil and a cathode foil with a separator paper interposed between them; It has a pair of lead wires connected to an anode foil and a cathode foil, and includes a convex portion at a connection portion between the anode foil and the cathode foil and the pair of lead wires, and both lengthwise ends of the anode foil and the cathode foil. The cut portion of the aluminum electrolytic capacitor is covered with tape, and this tape is made of Manila paper, kraft paper, esparto paper, red hemp paper, or a mixture of these papers, which is impregnated with the driving electrolyte. The device is constructed by applying an adhesive that allows the driving electrolyte to permeate only a portion of one side of a base material made of separator paper.
作用
上記構成によれば、陽極箔および陰極箔と一対のリード
線との接続部における凸部と、前記陽極箔と陰極箔の長
さ方向の両端の切断部をテープで被覆しているため、こ
の被覆したテープは、陽極箔および陰極箔と一対のリー
ド線との接続部における凸部と、これに対極する電極箔
との間、ならびに電極箔の長さ方向の両端の切断部にお
ける切断パリと、これに対極する電極箔との間に間隔を
作って、前記凸部と、これに対極する電極箔との間、な
らびに電極箔の両端の切断パリと、これに対極する電極
箔との間に生じる巻回時のストレスを吸収することがで
き、これにより、前記凸部ならびに切断パリがセパレー
タ紙を突き破って陽極箔と陰極箔とを接触させてしまう
のを確実に防止することができるため、ショート不良が
発生するということはない。Effects According to the above configuration, since the convex portions at the connection portions between the anode foil and the cathode foil and the pair of lead wires and the cut portions at both lengthwise ends of the anode foil and the cathode foil are covered with tape, This coated tape has cut edges between the protrusion at the connection between the anode foil and the cathode foil and the pair of lead wires, and the electrode foil opposite to this, as well as at the cut sections at both lengthwise ends of the electrode foil. and the electrode foil opposite to this, and between the convex portion and the electrode foil opposite to it, as well as between the cut edges at both ends of the electrode foil and the electrode foil opposite to this. The stress that occurs during winding can be absorbed, thereby reliably preventing the protrusions and cut edges from breaking through the separator paper and bringing the anode foil and cathode foil into contact. Therefore, no short-circuit failure occurs.
またこのテープは、駆動用電解液を浸透させるマニラ紙
、クラフト紙、エスパルト紙、紅麻紙のいずれか１つの
紙あるいはそれらを混合してできタアルミ電解コンデン
サ用のセパレータ紙よりなる基材の片面の一部分のみに
しか、駆動用電解液を浸透させる粘着剤は塗布していな
いため、粘着剤で覆われる電極箔の面積は極めて少なく
なり、かつ粘着剤でわずかに覆われている電極箔の部分
も、駆動用電解液が粘着剤中を浸透してい（距離が、基
材の片面の全面に粘着剤を塗布したものに比べて極めて
短くなり、その結果、電極箔への駆動用電解液の浸透の
ための時間もほとんどかからないため、電極箔への含浸
後は電極箔上はすみやかに駆動用電解液で濡れることに
なり、これにより、設計通りの静電容量を取り出すこと
ができるものである。In addition, this tape is made of one of manila paper, kraft paper, esparto paper, red hemp paper, or a mixture of them, and is made of separator paper for aluminum electrolytic capacitors. Since the adhesive that penetrates the driving electrolyte is only applied to a portion of the electrode foil, the area of the electrode foil covered with the adhesive is extremely small, and the portion of the electrode foil that is slightly covered with the adhesive is also coated with the adhesive. , the driving electrolyte penetrates into the adhesive (the distance is extremely short compared to when the adhesive is applied to the entire surface of one side of the base material, and as a result, the driving electrolyte penetrates into the electrode foil). Since it takes almost no time for the electrode foil to be impregnated, the electrode foil is quickly wetted with the driving electrolyte, and as a result, the designed capacitance can be obtained.
実施例
以下、本発明の実施例を添付図面にもとづいて説明する
。第１図は本発明の実施例であるアルミ電解コンデンサ
のコンデンサ素子を構成する部材の位置関係を示したも
ので、従来例と同一部品については同一番号を付し、従
来例と異なる点のみを説明する。すなわち、本発明の実
施例は、陽極箔１および陰極箔２と一対のリード線４ａ
、４ｂとの接続部における凸部１４と、前記陽極箔１と
陰極箔２の長さ方向の両端の切断部をテープ１５で被覆
し、かつこのテープ１５は、駆動用電解液を浸透させる
アルミ電解コンデンサ用のセパレータ紙よりなる基材の
片面の一部分のみに駆動用電解液を浸透させる粘着剤を
塗布することにより構成したものである。Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. Figure 1 shows the positional relationship of the members constituting the capacitor element of an aluminum electrolytic capacitor according to an embodiment of the present invention. Parts that are the same as those of the conventional example are given the same numbers, and only the points that differ from the conventional example are indicated. explain. That is, the embodiment of the present invention has an anode foil 1, a cathode foil 2, and a pair of lead wires 4a.
, 4b and the cut portions at both lengthwise ends of the anode foil 1 and cathode foil 2 are covered with tape 15, and this tape 15 is made of aluminum permeated with the driving electrolyte. It is constructed by applying an adhesive that allows a driving electrolyte to permeate only a portion of one side of a base material made of separator paper for electrolytic capacitors.
次に本発明の各実施例と従来例とを比較するための実施
例を示す。Next, examples will be shown for comparing each example of the present invention with a conventional example.
（実施例１）
第２図（ａ）に示すように、アルミ電解コンデンサのセ
パレータ紙を構成するマニラ紙を基材１５ａとし、かつ
この基材１５ａの片面に駆動用電解液を浸透させる粘着
剤１５ｂを線状に塗布することにより構成したテープ１
５を用い、このテープ１５で第１図に示す陽極箔１およ
び陰極箔２と一対のリード線４ａ、４ｂとの接続部にお
ける凸部１４と、前記陽極箔１と陰極箔２の長さ方向の
両端部を被覆し、そしてこの陽極箔１と陰極箔２をセパ
レータ紙３とともに巻回することによりコンデンサ素子
４を構成し、そしてこのコンデンサ素子４に駆動用電解
液を含浸させるとともに、このコンデンサ素子４をアル
ミニウムよりなる金属ケース５内に封入して、定格１０
Ｖ１００μＦのアルミ電解コンデンサを作製した。(Example 1) As shown in FIG. 2(a), a base material 15a is manila paper that constitutes the separator paper of an aluminum electrolytic capacitor, and an adhesive is used to infiltrate a driving electrolyte into one side of the base material 15a. Tape 1 constructed by linearly applying 15b
5, and with this tape 15, the convex part 14 at the connection part between the anode foil 1 and cathode foil 2 and the pair of lead wires 4a, 4b shown in FIG. A capacitor element 4 is constructed by winding the anode foil 1 and the cathode foil 2 together with a separator paper 3.The capacitor element 4 is impregnated with a driving electrolyte, and the capacitor element 4 is impregnated with a driving electrolyte. The element 4 is enclosed in a metal case 5 made of aluminum and has a rating of 10.
An aluminum electrolytic capacitor with a voltage of 100 μF was manufactured.
（実施例２）
粘着剤１５ｂを第２図（ｂ）に示すように、基材１５ａ
の片面に破線状に塗布してなるテープ１５を用いた以外
は実施例１と同じ方法でアルミ電解コンデンサを作製し
た。(Example 2) As shown in FIG. 2(b), the adhesive 15b was applied to the base material 15a.
An aluminum electrolytic capacitor was produced in the same manner as in Example 1, except that the tape 15 was applied in the form of a broken line on one side of the capacitor.
（実施例３）
粘着剤１５ｂを第２図（Ｃ）に示すように、基材１５ａ
の片面に点状に塗布してなるテープ１５を用いた以外は
実施例１と同じ方法でアルミ電解コンデンサを作製した
。(Example 3) The adhesive 15b was applied to the base material 15a as shown in FIG. 2(C).
An aluminum electrolytic capacitor was produced in the same manner as in Example 1, except that the tape 15, which was dotted on one side of the capacitor, was used.
（従来例１）
第８図に示すように、アルミ電解コンデンサ用のセパレ
ータ紙を構成するマニラ紙からなる基材１１の片面の全
面に粘着剤１２を塗布してなるテープ１３を用いた以外
は実施例１と同じ方法でアルミ電解コンデンサを作製し
た。(Conventional Example 1) As shown in FIG. 8, except for using a tape 13 made by applying an adhesive 12 to the entire surface of one side of a base material 11 made of manila paper constituting a separator paper for an aluminum electrolytic capacitor. An aluminum electrolytic capacitor was produced in the same manner as in Example 1.
（従来例２）
従来のテープ被覆なしのものを用いて実施例１と同じ方
法でアルミ電解コンデンサを作製した。(Conventional Example 2) An aluminum electrolytic capacitor was produced in the same manner as in Example 1 using a conventional capacitor without tape coating.
上記実施例１〜３および従来例１〜２のアルミ電解コン
デンサを製造したときのショート不良の発生率は第１表
に示すような結果となった。When the aluminum electrolytic capacitors of Examples 1 to 3 and Conventional Examples 1 to 2 were manufactured, the occurrence rates of short circuit defects were as shown in Table 1.
上記第１表から明らかなように、実施例１〜３および従
来例１のテープで被覆したものは、ショート不良は一切
発生していないが、従来例２のテープ被覆なしのものを
用いた場合は、ショート不良が発生しているものである
。As is clear from Table 1 above, the tape-covered products of Examples 1 to 3 and Conventional Example 1 did not cause any short-circuit defects, but when the tape-covered products of Conventional Example 2 were used. In this case, a short circuit failure has occurred.
第３図は実施例１〜３および従来例１〜２における駆動
用電解液含浸後に静電容量が安定するまでの経過時間を
示したもので、この第３図からも明らかなように、実施
例１〜３はテープ被覆なしの従来例２と比べて実用上は
とんど差がないが、従来例１は静電容量が安定するまで
非常に長い時間を要しているものである。Figure 3 shows the elapsed time until the capacitance stabilizes after impregnation with the driving electrolyte in Examples 1 to 3 and Conventional Examples 1 and 2. Examples 1 to 3 are practically the same as Conventional Example 2 without tape coating, but Conventional Example 1 requires a very long time until the capacitance becomes stable.
なお、テープ１５の基材１５ａは、上記実施例１〜３の
マニラ紙に限定されるものではなく、クラフト紙、エス
パルト紙、紅麻紙あるいはそれらを混合してできた紙に
おいても、上記実施例１〜３と同様の結果が確認された
。The base material 15a of the tape 15 is not limited to the manila paper of Examples 1 to 3 above, but may also be kraft paper, esparto paper, hemp paper, or a paper made of a mixture thereof. Results similar to those in Examples 1 to 3 were confirmed.
上記の結果から明らかなように、実施例１〜３で示した
テープ１５は、陽極箔１および陰極箔２と一対のリード
線４ａ、４ｂとの接続部における凸部１４と、これに対
極する電極箔１，２との間、ならびに電極箔１，２の両
端の切断バリ１０と、これと対極する電極箔１，２との
間に生じる巻回時のストレスを吸収することができ、こ
れにより、生産性に悪影響を及ぼすことなく、アルミ電
解コンデンサの巻取工程および組立・完成工程における
ショート不良の発生率を大幅に低減させることができる
。As is clear from the above results, the tape 15 shown in Examples 1 to 3 has a convex portion 14 at the connection portion between the anode foil 1 and the cathode foil 2 and the pair of lead wires 4a, 4b, and the opposite electrode. It is possible to absorb the stress generated during winding between the electrode foils 1 and 2 and between the cutting burr 10 at both ends of the electrode foils 1 and 2 and the electrode foils 1 and 2 that are opposite to this. As a result, the incidence of short-circuit defects in the winding process and assembly/completion process of aluminum electrolytic capacitors can be significantly reduced without adversely affecting productivity.
発明の効果
上記実施例の説明から明らかなように、本発明のアルミ
電解コンデンサは、陽極箔および陰極箔の一対のリード
線との接続部における凸部と、前記陽極箔と陰極箔の長
さ方向の両端の切断部をテープで被覆しているため、こ
の被覆したテープは、陽極箔および陰極箔と一対のリー
ド線との接続部における凸部と、これに対極する電極箔
との間、ならびに電極箔の長さ方向の両端の切断部にお
ける切断パリと、これに対極する電極箔との間に間隔を
作って、前記凸部と、これに対極する電極箔との間、な
らびに電極箔の両端の切断バリと、これに対極する電極
箔との間に生じる巻回時のストレスを吸収することがで
き、これにより、前記凸部ならびに切断パリがセパレー
タ紙を突き破って陽極箔と陰極箔とを接触させてしまう
のを確実に防止することができるため、ショート不良が
発生するということはない。Effects of the Invention As is clear from the description of the above embodiments, the aluminum electrolytic capacitor of the present invention has a convex portion at the connection portion between the anode foil and the cathode foil and the pair of lead wires, and a length of the anode foil and the cathode foil. Since the cut portions at both ends in the direction are covered with tape, the covered tape is between the convex portion at the connection portion between the anode foil and the cathode foil and the pair of lead wires, and the electrode foil opposite thereto. In addition, a space is created between the cut edges at both ends of the electrode foil in the length direction and the electrode foil opposite thereto, so that a gap is created between the protrusion and the electrode foil opposite thereto, as well as the electrode foil. It is possible to absorb the stress generated during winding between the cut burrs at both ends of the electrode foil and the opposite electrode foil, and as a result, the protrusions and the cut burrs break through the separator paper and separate the anode foil and cathode foil. Since it is possible to reliably prevent contact between the
またこのテープは、駆動用電解液を浸透させるマニラ紙
、クラフト紙、エスパルト紙、紅麻紙のいずれか１つの
紙あるいはそれらを混合してできたアルミ電解コンデン
サ用のセパレータ紙よりなる基材の片面の一部分のみに
しか、駆動用電解液を浸透させる粘着剤は塗布していな
いため、粘着剤で覆われる電極箔の面積は極めて少なく
なり、かつ粘着剤でわずかに覆われている電極箔の部分
も、駆動用電解液が粘着剤中を浸透してい（距離が、基
材の片面の全面に粘着剤を塗布したものに比べて極めて
短くなり、その結果、電極箔への駆動用電解液の浸透の
ための時間もほとんどかからないため、電極箔への含浸
後は電極箔上はすみやかに駆動用電解液で濡れることに
なり、これによリ、設計通りの静電容量を取り出すこと
ができるものである。In addition, this tape has one side of the base material made of manila paper, kraft paper, esparto paper, red hemp paper, or a separator paper for aluminum electrolytic capacitors made of a mixture of these papers, which is impregnated with the driving electrolyte. Since the adhesive that penetrates the driving electrolyte is only applied to a portion of the electrode foil, the area of the electrode foil covered with the adhesive is extremely small, and the portion of the electrode foil that is slightly covered with the adhesive Also, the driving electrolyte penetrates into the adhesive (the distance is extremely short compared to when the adhesive is applied to the entire surface of one side of the base material, and as a result, the driving electrolyte penetrates into the electrode foil). It takes almost no time for penetration, so after impregnating the electrode foil, the electrode foil is immediately wetted with the driving electrolyte, which makes it possible to extract the designed capacitance. It is.
第１図は本発明の実施例であるアルミ電解コンデンサの
コンデンサ素子を構成する部材の位置関係を示す分解斜
視図、第２図（ａ） 、 （ｂ） 、 （ｃ）は基材の
片面の一部分に粘着材を塗布した各実施例を示す斜視図
、第３図は駆動用電解液含浸後の静電容量が安定するま
での時間を示す特性図、第４図は従来のアルミ電解コン
デンサの縦断面図、第５図はロール箔から必要な長さの
分だけ電極箔を切断した状態を示す斜視図、第６図は従
来のアルミ電解コンデンサのコンデンサ素子を構成する
部材の位置関係を示す分解斜視図、第７図は電極箔の切
断部の切断パリの状態を示す断面図、第８図は基材の片
面の全面に粘着剤を塗布したテープの斜視図である。
１・・・・・・陽極箔、２・・・・・・陰極箔、３・・
・・・・セパレータ紙、４・・・・・・コンデンサ素子
、４ａ、４ｂ・・・・・・−対のリード線、１４・・・
・・・凸部、１５・・・・・・テープ、５ａ・・・・・
・基材、
５ｂ・・・・・・粘着剤。Figure 1 is an exploded perspective view showing the positional relationship of the members constituting the capacitor element of an aluminum electrolytic capacitor according to an embodiment of the present invention, and Figures 2 (a), (b), and (c) are views of one side of the base material. A perspective view showing each example in which adhesive material was applied to a part of the capacitor. Figure 3 is a characteristic diagram showing the time required for the capacitance to stabilize after impregnation with driving electrolyte. Figure 4 is a diagram of a conventional aluminum electrolytic capacitor. A vertical cross-sectional view, Fig. 5 is a perspective view showing a state in which electrode foil is cut to the required length from a roll of foil, and Fig. 6 shows the positional relationship of members constituting the capacitor element of a conventional aluminum electrolytic capacitor. FIG. 7 is an exploded perspective view, FIG. 7 is a cross-sectional view showing the state of the cut portion of the electrode foil, and FIG. 8 is a perspective view of the tape in which the entire surface of one side of the base material is coated with an adhesive. 1... Anode foil, 2... Cathode foil, 3...
... Separator paper, 4 ... Capacitor element, 4a, 4b ... - Pair of lead wires, 14 ...
...Protrusion, 15...Tape, 5a...
- Base material, 5b...Adhesive.
Claims (4)
て巻回することにより構成されるコンデンサ素子と、前
記陽極箔と陰極箔に接続される一対のリード線とを有し
、前記陽極箔および陰極箔と一対のリード線との接続部
における凸部と、前記陽極箔と陰極箔の長さ方向の両端
の切断部をテープで被覆し、かつこのテープは、駆動用
電解液を浸透させるマニラ紙，クラフト紙，エスパルト
紙，紅麻紙のいずれか１つの紙あるいはそれらを混合し
てできたアルミ電解コンデンサ用のセパレータ紙よりな
る基材の片面の一部分のみに駆動用電解液を浸透させる
粘着剤を塗布することにより構成したアルミ電解コンデ
ンサ。(1) It has a capacitor element formed by winding an anode foil and a cathode foil with a separator paper interposed between them, and a pair of lead wires connected to the anode foil and the cathode foil, The convex portions at the connections between the anode foil and the cathode foil and the pair of lead wires and the cut portions at both lengthwise ends of the anode foil and the cathode foil are covered with tape, and this tape is coated with a driving electrolyte. The driving electrolyte is infiltrated into only a portion of one side of the base material, which is made of manila paper, kraft paper, esparto paper, or hemp paper, or a separator paper for aluminum electrolytic capacitors made by mixing them. An aluminum electrolytic capacitor constructed by applying adhesive to
塗布した請求項１記載のアルミ電解コンデンサ。(2) The aluminum electrolytic capacitor according to claim 1, wherein an adhesive is linearly applied to a portion of the base material constituting the tape.
に塗布した請求項１記載のアルミ電解コンデンサ。(3) The aluminum electrolytic capacitor according to claim 1, wherein the adhesive is applied in a broken line shape to a portion of the base material constituting the tape.
塗布した請求項１記載のアルミ電解コンデンサ。(4) The aluminum electrolytic capacitor according to claim 1, wherein the adhesive is dotted on a portion of the base material constituting the tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2240815A JP2943290B2 (en) | 1990-09-10 | 1990-09-10 | Aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2240815A JP2943290B2 (en) | 1990-09-10 | 1990-09-10 | Aluminum electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04119614A true JPH04119614A (en) | 1992-04-21 |
| JP2943290B2 JP2943290B2 (en) | 1999-08-30 |
Family
ID=17065105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2240815A Expired - Fee Related JP2943290B2 (en) | 1990-09-10 | 1990-09-10 | Aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2943290B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006286961A (en) * | 2005-03-31 | 2006-10-19 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2006286962A (en) * | 2005-03-31 | 2006-10-19 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2006286960A (en) * | 2005-03-31 | 2006-10-19 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2009010069A (en) * | 2007-06-27 | 2009-01-15 | Panasonic Corp | Lead wire connection device for electrode foil for capacitor |
| JP2009194185A (en) * | 2008-02-15 | 2009-08-27 | Nitto Denko Corp | Protective tape for lead electrode of aluminum electrolytic capacitor |
| JP2011040698A (en) * | 2009-08-17 | 2011-02-24 | Jcc Engineering Co Ltd | Electronic component and manufacturing method of the same |
| JPWO2013125613A1 (en) * | 2012-02-21 | 2015-07-30 | 日本ケミコン株式会社 | Electrolytic capacitor |
| JP2015207682A (en) * | 2014-04-22 | 2015-11-19 | 日本ケミコン株式会社 | Capacitor and method for manufacturing the same |
| CN109755024A (en) * | 2019-01-28 | 2019-05-14 | 江苏法拉电子有限公司 | A kind of aluminium electrolutic capacitor of high charge storage capacity |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210166876A1 (en) | 2019-12-03 | 2021-06-03 | Solaredge Technologies Ltd. | Long-Life Capacitors |
-
1990
- 1990-09-10 JP JP2240815A patent/JP2943290B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006286961A (en) * | 2005-03-31 | 2006-10-19 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2006286962A (en) * | 2005-03-31 | 2006-10-19 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2006286960A (en) * | 2005-03-31 | 2006-10-19 | Nippon Chemicon Corp | Electrolytic capacitor |
| JP2009010069A (en) * | 2007-06-27 | 2009-01-15 | Panasonic Corp | Lead wire connection device for electrode foil for capacitor |
| JP2009194185A (en) * | 2008-02-15 | 2009-08-27 | Nitto Denko Corp | Protective tape for lead electrode of aluminum electrolytic capacitor |
| JP2011040698A (en) * | 2009-08-17 | 2011-02-24 | Jcc Engineering Co Ltd | Electronic component and manufacturing method of the same |
| JPWO2013125613A1 (en) * | 2012-02-21 | 2015-07-30 | 日本ケミコン株式会社 | Electrolytic capacitor |
| JP2015207682A (en) * | 2014-04-22 | 2015-11-19 | 日本ケミコン株式会社 | Capacitor and method for manufacturing the same |
| CN109755024A (en) * | 2019-01-28 | 2019-05-14 | 江苏法拉电子有限公司 | A kind of aluminium electrolutic capacitor of high charge storage capacity |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2943290B2 (en) | 1999-08-30 |
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