DE1861584U

DE1861584U - SCREW TRIMMER CAPACITOR FOR PRINTED PCB.

Info

Publication number: DE1861584U
Application number: DESCH32221U
Authority: DE
Original assignee: CHRISTIAN SCHWAIGER ELEKTROTEI
Current assignee: CHRISTIAN SCHWAIGER ELEKTROTEI
Priority date: 1962-09-15
Filing date: 1962-09-15
Publication date: 1962-11-08

Description

J L UgT&J L UgT &

Schraubtriimaerkondensator für gedruckte Leiterplatte^ \ J \J \ A Triaxial screw capacitor for printed circuit board ^ \ J \ J \ A

In der Bundfunkteehnik werden zur Einregulierung von H.FeSehwingungskreisen Trimmerkondensatoren in großem Umfang eingesetzt» Eine konstruktive Baufora dieser Trimmerkondeasatoren stellt die Gruppe der zylindrischen Sehraubtrimiaer mit Eunststoff-Dielektrikiom dar« Bei den herkömmlichen Bausiusteria dieser Abart läßt sieh eia dea Eotor darstellender walzenförmiger Körper Mittels einer Schraubspindel j, die sich in einem Mutterngewinde führt, in seiner Lage gum umgebenden Statorbelag verändern, wobei eine zwischen Motor und Stator eingelegte Isolierfolie das Dielektrikum bildet» Ia neiuerer Zeit werden voralle® Trismerkondensatoren benötigt, die aur Bestückung der gedruckten Leiterplatten geeignet sind. Die Be= festigung erfolgt hierbei durch Verlöten ihrer Anschlußglieder mit den Belägen der Leiterplatten» Di© neuartige Ausbildung eiaes sehr wirtschaftlich zu fertigenden SehraubtriHiaerkondensators für ge= druckte Leiterplatten wird anhand der Abbildungen la, Ib und 2 beschrieben.In the Bundfunkteehnik for the adjustment of H.Fe-oscillation circles Trimmer Capacitors Used On A Large Scale »One constructive design of these trimmer capacitors represents the group the cylindrical visual trim with plastic dielectrics In the case of the conventional Bausiusteria of this type, you can see eia dea A cylindrical body representing the eotor by means of a screw spindle j, which is guided in a nut thread, in its position gum surrounding stator lining, with one between motor and stator inserted insulating film forms the dielectric »Ia Recently, all Trismer® capacitors that are suitable for assembling the printed circuit boards. The Be = fixing is done here by soldering their connecting links the coverings of the printed circuit boards »The new type of training is very effective Economical to manufacture SehraubtriHiaerkondensators for ge = printed circuit boards is described with reference to Figures la, Ib and 2.

In herkömmlicher Weise ist der in Form eines Zylinders Mit Gewindeansata ausgebildete Sotorkern 1 in der Gewindebohrung der Sockel= platte 2 schraubbar gelagert» Die Sockelplatte 2 stellt gleich= zeitig die Halterung für den hülsenförmigen Statormantel 3 dar» Zwischen ihm und dem Eotorkern 1 ist das Dielektrikum 4 angeordnet, welches meistens aus einer Kunststoffolie besteht» Im Gegensatz zu den bekanntgewordenen Modellen ist jedoch die Soekelplatte so ausgebildet, daß neben den bekannten Funktionen noch die Unterbringung der Anschlußfahne 5 für den Statorbelag möglich ist; die elektrische Zuführung wird dabei mittels der Lötverbindung 6 ge= schaffen_β In a conventional manner, the motor core 1, which is designed in the form of a cylinder with a threaded anean, is screwably mounted in the threaded hole in the base plate 2 4 arranged, which mostly consists of a plastic film »In contrast to the models that have become known, however, the socket plate is designed in such a way that, in addition to the known functions, the connection lug 5 for the stator lining can also be accommodated; the electrical supply is created by means of the solder joint 6 ge = _β

Die mechanische Befestigung des Bauteiles wird mittels des U=Bügels 7 ermöglicht; dieser weist in seiner Mitte ein eiage= prägtes Gewindeloch auf„ welches zum Gewindeansatz des Sotor= kernes 1 paßt» Durch Festschrauben des U=Bügels 7 gelangen seine Arretierungslaschen 8 sur Auflage an der Soekelplatte 2 und rasten bei stärkerem Anspannen in entsprechende Kerben 9 der Soekelplatte ein. Der U=Bügel 7 wird aweckmäßigerv/eise aus Federmaterial ange-The mechanical fastening of the component is made possible by means of the U = bracket 7; this has an egg = in its center embossed threaded hole on "which is to the thread attachment of the Sotor = core 1 fits »By screwing the U = bracket 7, its locking tabs 8 reach the support on the base plate 2 and lock with greater tension in corresponding notches 9 of the Soekel plate a. The U = bracket 7 is usually made of spring material.

Claims

manufactures so that the spring preload generated when it is screwed is also retained. At the same time, the U-bracket 7 fulfills the task of a contact member in that it establishes the electrical connection to the thread attachment of the rotor core 1. The stop disk 10, which is firmly connected to the rotor core 1, serves as a limit stop when unscrewing the rotor core 1. Protection claims

1) Screw trimmer capacitor for printed circuit boards, consisting of from a cylindrical rotor core with a thread attachment, an annular stator lining surrounding the rotor core and a dielectric located between the rotor core and the stator lining, characterized in that the for guiding the rotor core serving base plate is set up at the same time to accommodate the terminal lug for the stator lining.

2) screw trimmer capacitor for printed circuit boards according to claim 1, characterized in that a U-bracket is present is, which both the mechanical fastening of the component and the direct electrical contacting of the rotor core causes.

3) screw trimmer capacitor for printed circuit boards according to claim 2, characterized in that the U-bracket protruding Has claws which, in conjunction with corresponding notches in the base plate, provide a torsion-proof Allow assembly of the entire unit.

4) screw trimmer capacitor for printed circuit boards according to claims 2 and 3, characterized in that the the U-brackets that hold the component together after they have been screwed on and tightened with the base plate by means of suitable ones Adhesive, e.g. glue varnish, is additionally connected.