Abstract: The invention is based on an oscillating armature pump, in particular for a beverage machine, for conveying a liquid, having a pressure cylinder, a working cylinder, a working piston that has a piston part that is configured to be guided in the pressure cylinder and to delimit a pressure chamber together with the pressure cylinder, and that has a magnet element that is configured to be guided in the working cylinder, the working piston being configured to be set in stroke motion, in particular oscillating stroke motion, along a working axis in order to enlarge and/or reduce a volume of the pressure chamber. It is proposed that the working piston has at least one first connection point that is configured to connect the piston part and the magnet element to one another, in particular directly, and to transmit forces having any direction from the magnet element to the piston part along the working axis.

Abstract: A drive coil device, in particular for an oscillating armature pump, includes at least one coil carrier, further includes at least one coil wire that is wound onto the coil carrier to form a coil, and at least one coil enclosure configured to at least partly enclose the coil, wherein the coil enclosure comprises at least one contact interface which is configured to receive at least an end of the coil wire.