Coil and Method for Producing A Coil

A method for producing a coil, the method comprising:

• providing a tube comprising a tube wall composed of an electrically conductive material,
• creating a gap in an inductive portion of the tube, wherein the gap forms a helix in the tube wall in the inductive portion;
• and
• shaping at least two portions in the tube wall thereby forming contact portions.

A method for producing modules, wherein each module has at least two coils in a common housing, wherein each of the coils has a tube comprising a tube wall composed of an electrically conductive material, wherein the tube has an inductive portion in which a gap is arranged that shapes the tube wall to form a helix, and wherein the tube has a contact portion in which the tube wall forms an electrical terminal, the method comprising:

• creating at least two coil strings comprising a plurality of inductive portions in each of which a gap is created that shapes the tube wall in the respective inductive portion to form a helix, and a contact portion between two adjacent inductive portions in each case;
• arranging the coil strings in parallel;
• embedding the coil strings in a plastic, which forms the housing;
• and
• singulating the coil strings connected by the plastic, along separation lines that run transverse to a central axis of the coil strings to form the modules,
• wherein the contact portion, following singulation of the coil string, forms an electrical terminal to the two adjacent inductive portions in each case.