DE906360C - Method for attaching connections to electrodes for electrolytic capacitors, in particular for electrolytic suppression capacitors - Google Patents
Method for attaching connections to electrodes for electrolytic capacitors, in particular for electrolytic suppression capacitorsInfo
- Publication number
- DE906360C DE906360C DES16210D DES0016210D DE906360C DE 906360 C DE906360 C DE 906360C DE S16210 D DES16210 D DE S16210D DE S0016210 D DES0016210 D DE S0016210D DE 906360 C DE906360 C DE 906360C
- Authority
- DE
- Germany
- Prior art keywords
- electrolytic
- capacitors
- electrodes
- connections
- attaching
- 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
Links
- 239000003990 capacitor Substances 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 7
- 230000001629 suppression Effects 0.000 title claims description 6
- 238000003466 welding Methods 0.000 claims description 9
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 201000009032 substance abuse Diseases 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
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
Verfahren zum Befestigen von Anschlüssen an Elektroden für elektrolytische Kondensatoren, insbesondere für elektrolytische Entstörungskondensatoren Bei der Anwendung von elektrolytischen Kondensatoren mit aus Aluminium bestehenden Elektroden für Hochfrequenzzwecke, insbesondere auf dem Entstörungsgebiet, zeigt es sich, daß die Länge der Anschlußstreifen bei hohen Frequenzen einen großen Scheinwiderstand verursacht. Auch ist es notwendig, eine größere Anzahl von Anschlußstreifen, die regelmäßig um den Wickelanfang verteilt sind, vorzusehen. Schließlich machen sich auch die Übergangswiderstände zwischen den Aluminiumanschlüssen und den zugehörigen Aluminiumelektroden störend bemerkbar.Method of attaching leads to electrodes for electrolytic Capacitors, especially for electrolytic interference suppression capacitors Use of electrolytic capacitors with electrodes made of aluminum for high frequency purposes, especially in the field of interference suppression, it turns out that the length of the connection strips at high frequencies has a large impedance caused. It is also necessary to have a larger number of connection strips that are regularly distributed around the beginning of the winding. Finally make up also the contact resistances between the aluminum connections and the associated ones Aluminum electrodes noticeably disturbing.
Es sei z. B. insbesondere ein sogenannter elektrolytischer Durchführungskondensator betrachtet. Bei einem solchen Kondensator, wie er insbesondere für Entstörungszwecke verwendet wird, führt durch den in an sich bekannter Weise aufgebauten Wickelkörper eine ebenfalls aus Ventilmetall, vorzugsweise Aluminium, bestehende Achse. Die mit der das Dielektrikum des Kondensators bildenden Sperrschicht bedeckte Elektrode, nämlich die Anode, wird nun bei solchen Kondensatoren mit der durch den Wickelkörper führenden Achse verbunden. Diese Achse ist ebenfalls formiert, d. h. mit einer Sperrschicht versehen. Die Sperrschichten bestehen bekanntlich aus einem Umsetzungsprodukt des Elektrodenmetalls, also meistens aus Aluminiumoxyd. Man hat versucht, eine Ver- Bindung zwischen der formierten Anode und der formierten Achse des Durchführungskondensators durch Löten zu erreichen. Eine Lötung ist aber deswegen nicht empfehlenswert, weil Fremdmetalle zur Vermeidung von Korrosionen unter allen Umständen vermieden werden müssen. Eine Nietung der Anschlußstreifen, besonders mehrerer Anschlußstreifen gleichmäßig um den Wickelumfang, ist nicht leicht zu erreichen bzw. sind längere Anschlußstreifen erforderlich. Man hat auch bereits versucht, die beiden zu verbindenden Teile zusammenzuschweißen. Hierbei ergab es sich aber, daß die Oxydschicht einen großen Widerstand für den Schweißstrom bildete. Die im allgemeinen zur Verfügung stehende Schweißspannung reichte daher meistens nicht zur Bildung einer einwandfreien Verbindung aus.Let it be B. in particular a so-called electrolytic feed-through capacitor considered. In the case of a capacitor such as that used in particular for interference suppression purposes is used, leads through the wound body constructed in a manner known per se an axis also made of valve metal, preferably aluminum. With the electrode covering the barrier layer forming the dielectric of the capacitor, namely the anode, is now with such capacitors with the winding body leading axis connected. This axis is also formed, i. H. with a barrier layer Mistake. The barrier layers are known to consist of a reaction product of the Electrode metal, so mostly made of aluminum oxide. An attempt has been made to binding between the formed anode and the formed axis of the feed-through capacitor to be achieved by soldering. Soldering is not recommended because Foreign metals must be avoided under all circumstances to avoid corrosion have to. A riveting of the connecting strips, especially several connecting strips evenly around the circumference of the wrap is not easy to reach or there are longer connecting strips necessary. Attempts have also been made to weld the two parts to be joined together. It turned out, however, that the oxide layer has a great resistance for the Welding current formed. The generally available welding voltage therefore mostly insufficient to form a perfect connection.
Die Erfindung bezieht sich nun auf ein Verfahren zum Befestigen von Anschlüssen an Elektroden für elektrolytische Kondensatoren, insbesondere für elektrolytische Entstörungskondensatoren und bezweckt, die angeführten Übelstände zu vermeiden.The invention now relates to a method of attaching Connections to electrodes for electrolytic capacitors, in particular for electrolytic capacitors Interference suppression capacitors and aims to avoid the abuses mentioned.
Gemäß der Erfindung wird dies dadurch erreicht, daß während des eigentlichen Schweißvorganges die Schweißelektrode in Bewegung versetzt wird. Zweckmäßig wird hierzu eine Frequenz von etwa 5o Hz aufwärts verwendet. Vorteilhaft ist es, die Schweißelektrode durch Schall- oder Ultraschall in die gewünschten Schwingungen zu versetzen. Die derart beeinflußte Schweißelektrode bewegt sich dann nach Maßgabe der Schallschwingungen, wodurch die an der zu schweißenden Stelle vorhandenen Oxydschichten stetig zerstört werden, so daß der Schweißstrom, ohne wesentlichen Widerstand zu finden, die Schweißstelle durchfließen kann.According to the invention this is achieved in that during the actual Welding process the welding electrode is set in motion. Will be expedient a frequency of about 50 Hz upwards is used for this. It is advantageous that the Welding electrode into the desired vibrations by sonic or ultrasound to move. The welding electrode influenced in this way then moves as required the sound vibrations, which causes the oxide layers present at the point to be welded are steadily destroyed, so that the welding current without significant resistance to it find that the weld can flow through.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES16210D DE906360C (en) | 1941-11-29 | 1941-11-29 | Method for attaching connections to electrodes for electrolytic capacitors, in particular for electrolytic suppression capacitors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES16210D DE906360C (en) | 1941-11-29 | 1941-11-29 | Method for attaching connections to electrodes for electrolytic capacitors, in particular for electrolytic suppression capacitors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE906360C true DE906360C (en) | 1954-03-11 |
Family
ID=7475092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES16210D Expired DE906360C (en) | 1941-11-29 | 1941-11-29 | Method for attaching connections to electrodes for electrolytic capacitors, in particular for electrolytic suppression capacitors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE906360C (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR844659A (en) * | 1937-10-13 | 1939-07-31 | Bayerische Flugzeugwerke Ag | Electric welding process |
-
1941
- 1941-11-29 DE DES16210D patent/DE906360C/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR844659A (en) * | 1937-10-13 | 1939-07-31 | Bayerische Flugzeugwerke Ag | Electric welding process |
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