Method for producing a flat coil unit

A method is specified by means of which a coil unit consisting of a flat coil carrier and a spiral flat coil is produced. A metallic layer (5) is applied onto one end face (3) of the flat coil carrier (1). In a further method step, the metallic layer (5) is removed in places, so that a spiral track...

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Bibliographische Detailangaben
1. Verfasser:	NASER,GEORG
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INDUCTANCES MAGNETS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS PRINTED CIRCUITS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SOUND-PRODUCING DEVICES TRANSFORMERS
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Beschreibung
Zusammenfassung:	A method is specified by means of which a coil unit consisting of a flat coil carrier and a spiral flat coil is produced. A metallic layer (5) is applied onto one end face (3) of the flat coil carrier (1). In a further method step, the metallic layer (5) is removed in places, so that a spiral track (7) is left. The spiral track (7) is thickened, for example galvanically. This results in a spiral flat coil (11). The intermediate spaces between the spiral track (7) are filled out with an insulating material (13). The coil unit is preferably used in a shockwave tube for kidney-stone lithotripsy in medical technology. The advantage of the method is that the flat coil (11) bears in a sealed manner on the coil carrier (1), as a result of which a good heat transfer is achieved. In addition, the flat coil (11) is stressed less mechanically since it has no movement freedom towards the flat coil carrier (1).