Capacitor and process fro electrically connecting electrode layers to point of connection

Abstract

A capacitor including a capacitor element (1) that has a roll (4) of alternate dielectric layers (8) and electrode layers (9), which roll has two end surfaces (5, 6), in which the electrode layers are connectably exposed, and two contact elements that are electrically connected to the electrode layers at the end surfaces. In accordance with the invention, at least one of the contact elements includes a contact par (10, 11) which, before being connected to the electrode layers at the end surface, displays a plurality of through-running openings (15), through which a flame-sprayed metal material is affixed to attach the contact part to the end surface. The invention also relates to a process for electrically connecting the electrode layers in such a capacitor element to an external predetermined connection point.

Description

technical field [0001] The invention relates to a capacitor comprising at least one capacitor element, wherein said element comprises at least one roll of alternating dielectric and electrode layers, said roll having first and second end faces facing away from each other and two end faces a contact element electrically connected to an electrode layer which is connectably exposed, [0002] The invention also relates to a method for electrically connecting the electrode layers within the capacitor element to external predetermined contacts. Background technique [0003] In power capacitors it is known to use rolled capacitor elements having two substantially parallel end faces. In this roll, the dielectric film and metal electrode material are arranged circumferentially so that in the radial direction of the roll there are alternating dielectric and electrode layers, wherein the electrode layers are capacitively coupled to each other through the dielectric layers. On the end...

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