JPH0752700B2 - Method of manufacturing electrolytic capacitor - Google Patents
Method of manufacturing electrolytic capacitorInfo
- Publication number
- JPH0752700B2 JPH0752700B2 JP62068457A JP6845787A JPH0752700B2 JP H0752700 B2 JPH0752700 B2 JP H0752700B2 JP 62068457 A JP62068457 A JP 62068457A JP 6845787 A JP6845787 A JP 6845787A JP H0752700 B2 JPH0752700 B2 JP H0752700B2
- Authority
- JP
- Japan
- Prior art keywords
- rivet
- aluminum
- aluminum rivet
- metal
- terminal
- 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
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、金属端子を封口板に固定した電解コンデンサ
の製造方法に関し、特に音響機器用に有利なものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an electrolytic capacitor in which metal terminals are fixed to a sealing plate, and is particularly advantageous for audio equipment.
従来の技術 一般にアルミ電解コンデンサは、エッチングおよび化成
処理を施したアルミ箔を電極箔とし、セパレータを介し
て巻回したのち、駆動用電解液を含浸し、コンデンサ素
子を形成する。2. Description of the Related Art Generally, in an aluminum electrolytic capacitor, an aluminum foil which has been subjected to etching and chemical conversion treatment is used as an electrode foil, which is wound via a separator and then impregnated with a driving electrolytic solution to form a capacitor element.
次に硬質絶縁体の片面にポリプロピレン、他面に弾性絶
縁体を貼り合わせた封口板を介して端子をアルミリベッ
トで、加締により固定し、該リベットにコンデンサ素子
より導出した引出タブを接続し、ケースに収容し、巻締
密封して構成されていた。そして、音響用コンデンサに
おいては、端子は一般に非磁性体の真鍮が銅が使用され
ていた。（実開昭52−2844号など） 発明が解決しようとする問題点 このような用途に使用される端子とアルミリベットの接
続には、特に低い接続抵抗が望まれる。そのために、Zn
が30％程度含有する真鍮等導電率80％未満の金属端子の
場合、アルミリベットと端子間に電流を流し、端子とア
ルミリベットの溶接接続が行われている。Next, the terminals are fixed by crimping with aluminum rivets through a sealing plate in which polypropylene is attached to one side of the hard insulator and elastic insulator is attached to the other side, and the pull-out tab led out from the capacitor element is connected to the rivet. It was housed in a case, and was wound and sealed. In the acoustic capacitor, the terminal is generally made of nonmagnetic brass and copper. (Problems to be solved by the invention, etc.) Problems to be solved by the invention A particularly low connection resistance is desired for the connection between the terminal and the aluminum rivet used in such an application. For that, Zn
For metal terminals with a conductivity of less than 80%, such as brass containing about 30%, a current is applied between the aluminum rivet and the terminal, and the terminal and the aluminum rivet are welded.
一方、銅等導電率80％以上の金属端子の場合、端子の導
体抵抗が小さく、端子はほとんど発熱しないのでアルミ
リベットに溶接することが困難であった。そのため、一
旦端子を封口板に加締した後、アルミリベットの加締し
た上下間に電流を流し、接続を安定にすることが検討さ
れていた。On the other hand, in the case of a metal terminal having a conductivity of 80% or more such as copper, it is difficult to weld it to an aluminum rivet because the conductor resistance of the terminal is small and the terminal hardly generates heat. Therefore, it has been considered to stabilize the connection by once crimping the terminal to the sealing plate and then passing a current between the crimped upper and lower sides of the aluminum rivet.
しかしながら、アルミリベットに電流を流すとリベット
が発熱し、上述の封口板のポリプロピレンが熱伝導によ
り加熱され、ポリプロピレンが溶融し、ピンホールや剥
離を生じ、コンデンサの使用中に腐食を生ずるといった
問題がある。However, when a current is applied to the aluminum rivet, the rivet heats up, the polypropylene of the sealing plate is heated by heat conduction, the polypropylene melts, pinholes and peeling occur, and there is a problem that corrosion occurs during use of the capacitor. is there.
またこのピンホールや剥離を防止するため、上述の電流
を小さくすると、安定した低い接続抵抗が得られなかっ
た。Further, if the above-mentioned current is reduced in order to prevent this pinhole or peeling, a stable and low connection resistance cannot be obtained.
問題を解決するための手段 本発明は上述の問題を解消するため導電率の高い金属端
子１の接続抵抗を低減し、かつポリプロピレン層８に損
傷を与えず、信頼性も十分維持できるものである。Means for Solving the Problems The present invention solves the above-mentioned problems by reducing the connection resistance of the metal terminal 1 having high conductivity, and not damaging the polypropylene layer 8 and maintaining sufficient reliability. .
すなわち、金属メッキを施した良導電性金属端子１のリ
ベット孔３に鍔部４を有するアルミリベット５を挿入
し、上記アルミリベット５の頭部６と鍔部４間に導電お
よび加圧を施し、上記の金属メッキ層２を溶融させて金
属端子１とアルミリベット５とを接続し、上記アルミリ
ベット５を封口板10に挿入し、該アルミリベット５とコ
ンデンサ素子12より導出した引出タブ13とを接続し、該
コンデンサ素子12をケース14に収納し、密閉したことを
特徴とする電解コンデンサの製造方法である。That is, the aluminum rivet 5 having the collar portion 4 is inserted into the rivet hole 3 of the metal plated good conductive metal terminal 1, and conductivity and pressure are applied between the head portion 6 and the collar portion 4 of the aluminum rivet 5. , The metal plating layer 2 is melted to connect the metal terminal 1 to the aluminum rivet 5, the aluminum rivet 5 is inserted into the sealing plate 10, and the aluminum rivet 5 and the pull-out tab 13 led out from the capacitor element 12 are connected. Is connected, the capacitor element 12 is housed in a case 14, and the case is hermetically sealed.
作用 金属端子のリベット孔３にアルミリベット５を挿入し、
アルミリベット５の頭部と鍔部４間に電流を流して加圧
する際、該電流でアルミリベット５を加熱し、この熱で
金属端子１の金属メッキ層２を溶融させ、金属端子１と
アルミリベット５が圧着できるので、圧着部分が密着融
合し、接続が安定する。また上述の通電を行った後、ア
ルミリベット５を封口板10に装着するため、封口板10を
加熱することもない。Action Insert the aluminum rivet 5 into the rivet hole 3 of the metal terminal,
When a current is applied between the head of the aluminum rivet 5 and the collar 4 to apply pressure, the aluminum rivet 5 is heated by the current, and the metal plating layer 2 of the metal terminal 1 is melted by this heat, and the metal terminal 1 and the aluminum terminal Since the rivet 5 can be crimped, the crimped portions are closely fused and the connection is stable. Further, since the aluminum rivet 5 is mounted on the sealing plate 10 after the above-mentioned energization, the sealing plate 10 is not heated.
実施例 以下、本発明を第１図から第４図に示す実施例について
説明する。Embodiments Hereinafter, the present invention will be described with reference to embodiments shown in FIGS. 1 to 4.
まず、良導電性の電気銅を端子基材とし、これを打抜加
工し、その表面を電気錫メッキしてメッキ厚さを10μｍ
に仕上げた金属端子１を形成する。２は金属メッキ層で
ある。次に該端子の打抜加工の際に形成したリベット孔
３に、鍔部４を設けた純度99.94％からなるアルミリベ
ット５を挿入し、第１図のようにアルミリベット５の頭
部６と鍔部４間（図中Ａ−Ｂ間）に電流を流しながら加
圧し端子を加締める。このとき該電流によって、アルミ
リベット５が加熱され、アルミリベット５の加締変形す
る部分が軟化し、加圧によって金属端子１とアルミリベ
ット５が接触し、更に金属端子１表面の金属メッキ層２
が溶解し、上述の加熱焼鈍状態のアルミリベットと密着
融合する。次に、上記アルミリベット５を、硬質絶縁体
７の片面にポリプロピレン層８、他面に弾性絶縁体９を
貼り合わせた封口板10のリベット孔に挿入し、ワッシャ
11を用いてコンデンサ素子12より導出した引出タブ13で
圧着し、上記アルミリベット５と引出タブ13とを接続
し、該コンデンサ素子12をケース14に収納し、密閉して
完成する。First, a terminal base material is electroconductive copper with good conductivity, and this is punched, and the surface is electrotin plated to a plating thickness of 10 μm.
The metal terminal 1 finished to the above is formed. 2 is a metal plating layer. Next, an aluminum rivet 5 having a purity of 99.94% and having a collar portion 4 was inserted into the rivet hole 3 formed when the terminal was punched, and the head portion 6 of the aluminum rivet 5 was inserted as shown in FIG. While pressing the current between the collars 4 (between A and B in the figure), pressurize and crimp the terminals. At this time, the aluminum rivet 5 is heated by the current, the portion of the aluminum rivet 5 that is caulked and deformed is softened, and the metal terminal 1 and the aluminum rivet 5 are brought into contact with each other by pressurization, and the metal plating layer 2 on the surface of the metal terminal 1 is further contacted.
Melts and closely fuses with the above-mentioned heat-annealed aluminum rivet. Next, the aluminum rivet 5 is inserted into the rivet hole of the sealing plate 10 in which the polypropylene layer 8 is attached to one surface of the hard insulator 7 and the elastic insulator 9 is attached to the other surface, and the washer is used.
The aluminum rivet 5 and the pull-out tab 13 are connected by crimping with the pull-out tab 13 led out from the capacitor element 12 using 11, and the capacitor element 12 is housed in a case 14 and hermetically sealed.
第４図は上述の実施例において、直径3mmのアルミリベ
ットを用いて、通電する電流量を種々変えて金属端子と
接続し、これを温度121℃、圧力２気圧、湿度100％、10
0時間のプレッシャクッカ試験を行った結果を示す。FIG. 4 shows that, in the above-mentioned embodiment, aluminum rivets with a diameter of 3 mm were used to connect the metal terminals while changing the amount of current to be passed, and the temperature was 121 ° C., the pressure was 2 atm, the humidity was 100%,
The results of a 0 hour pressure cooker test are shown.
約40A以上では、金属端子の金属メッキが溶融し、接続
抵抗が極めて安定していることが確認された。At about 40 A or more, it was confirmed that the metal plating of the metal terminal melted and the connection resistance was extremely stable.
なお、厚さ20μｍのポリプロピレンを貼り合わせた封口
板を用いる際、従来の電解コンデンサにおいては、金属
端子１とアルミリベット５とを封口板10を介して圧着し
その後通電すると通電する電流が約35Aでポリプロピレ
ンシートが溶融するため、その値以下で通電しなければ
ならず、接続抵抗の安定、維持が困難であったが、本発
明では金属端子とアルミリベットとを接続した後は、通
電を必要とせず、上述の問題も解消できた。In addition, when using a sealing plate having a thickness of 20 μm laminated with polypropylene, in the conventional electrolytic capacitor, when the metal terminal 1 and the aluminum rivet 5 are pressure-bonded via the sealing plate 10 and then energized, the energized current is about 35 A. However, since the polypropylene sheet melts, it is necessary to energize below that value, and it was difficult to stabilize and maintain the connection resistance.However, in the present invention, energization is required after connecting the metal terminal and the aluminum rivet. However, the above problem could be solved.
発明の効果 以上のように本発明における導電性の高い金属端子１と
アルミリベット５の接続抵抗は極めて安定し、音響機器
に用いた場合は、音質面において歪の少ない高忠実度再
生が得られ、工業的ならびに実用的価値の大なるもので
ある。EFFECTS OF THE INVENTION As described above, the connection resistance between the highly conductive metal terminal 1 and the aluminum rivet 5 according to the present invention is extremely stable, and when used in audio equipment, high fidelity reproduction with less distortion in sound quality can be obtained. It is of great industrial and practical value.
第１図および第２図は本発明の一実施例の電解コンデン
サの製造過程における要部の説明図、第３図は本発明の
電解コンデンサの要部の断面図、第４図はプレッシャク
ッカ試験における接触抵抗−時間特性図である。 1:金属端子、2:金属メッキ層、3:リベット孔 4:鍔部、5:アルミリベット、6:頭部 7:硬質絶縁体、8:ポリプロピレン層、9:弾性絶縁体 10:封口板、11:ワッシャ、12:コンデンサ素子 13:引出タブ、14:ケース1 and 2 are explanatory views of a main part in the manufacturing process of the electrolytic capacitor of one embodiment of the present invention, FIG. 3 is a sectional view of the main part of the electrolytic capacitor of the present invention, and FIG. 4 is a pressure cooker test. 6 is a contact resistance-time characteristic diagram in FIG. 1: Metal terminal, 2: Metal plating layer, 3: Rivet hole 4: Collar part, 5: Aluminum rivet, 6: Head 7: Hard insulator, 8: Polypropylene layer, 9: Elastic insulator 10: Seal plate, 11: Washer, 12: Capacitor element 13: Pull-out tab, 14: Case
Claims (2)
（１）のリベット孔（３）に、鍔部（４）を有するアル
ミリベット（５）を挿入し、上記アルミリベット（５）
の頭部（６）と鍔部（４）間に通電及び加圧を施し、上
記金属メッキを溶融させて金属端子（１）とアルミリベ
ット（５）とを接続した後、上記アルミリベット（５）
を封口板（10）に挿入し、該アルミリベット（５）とコ
ンデンサ素子（12）より導出した引出タブ（13）とを接
続し、該コンデンサ素子（12）をケース（14）に収納
し、密閉したことを特徴とする電解コンデンサの製造方
法。1. An aluminum rivet (5) having a collar portion (4) is inserted into a rivet hole (3) of a metal-plated good conductive metal terminal (1), and the aluminum rivet (5).
After energizing and pressurizing between the head (6) and the collar (4) of the metal, the metal plating is melted to connect the metal terminal (1) and the aluminum rivet (5), and then the aluminum rivet (5). )
Is inserted into the sealing plate (10), the aluminum rivet (5) and the pull-out tab (13) derived from the capacitor element (12) are connected, and the capacitor element (12) is housed in the case (14), A method for manufacturing an electrolytic capacitor, which is characterized by being hermetically sealed.
り付けることを特徴とする特許請求の範囲第１項記載の
電解コンデンサの製造方法。2. The method for producing an electrolytic capacitor according to claim 1, wherein a polypropylene layer (8) is attached to the sealing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62068457A JPH0752700B2 (en) | 1987-03-23 | 1987-03-23 | Method of manufacturing electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62068457A JPH0752700B2 (en) | 1987-03-23 | 1987-03-23 | Method of manufacturing electrolytic capacitor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPS64719A JPS64719A (en) | 1989-01-05 |
| JPH01719A JPH01719A (en) | 1989-01-05 |
| JPH0752700B2 true JPH0752700B2 (en) | 1995-06-05 |
Family
ID=13374244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62068457A Expired - Lifetime JPH0752700B2 (en) | 1987-03-23 | 1987-03-23 | Method of manufacturing electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0752700B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154780A (en) * | 1990-06-22 | 1992-10-13 | Aluminum Company Of America | Metallurgical products improved by deformation processing and method thereof |
| JPH09251927A (en) * | 1996-03-14 | 1997-09-22 | Kansai Coke & Chem Co Ltd | Method of connecting leads of collecting electrodes to external terminals of electric double layer capacitor |
| JP2005175414A (en) * | 2003-02-10 | 2005-06-30 | Nok Corp | Sealing plate and its manufacturing method |
| KR100778511B1 (en) * | 2006-09-11 | 2007-11-22 | 삼성에스디아이 주식회사 | Rechargeable battery module |
| TWI363432B (en) | 2007-02-26 | 2012-05-01 | Everlight Electronics Co Ltd | A structure of a light emitting diode and a method to assemble thereof |
| JP5155420B2 (en) * | 2011-03-11 | 2013-03-06 | ファナック株式会社 | Cage rotor of induction motor for brazing end ring and bar and manufacturing method thereof |
| JP2020170834A (en) * | 2019-04-02 | 2020-10-15 | 株式会社トップパーツ | Capacitor seal, manufacturing method thereof, and capacitor |
-
1987
- 1987-03-23 JP JP62068457A patent/JPH0752700B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS64719A (en) | 1989-01-05 |
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