Coil and method for producing a coil

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

• creating at least two coil strings, wherein each coil string is created along the tube and comprising a plurality of inductive portions, wherein each inductive portion comprises the gap so that the tube wall in the inductive portion forms the helix, wherein a contact connection portions is formed between each two neighboring inductive portions, and wherein, following singulation of each coil string, the electrical terminal is formed for each inductive portion from the contact portion of the contact connection portion;
• arranging the coil strings in parallel;
• embedding the coil strings in a plastic, the plastic forming 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 module.

A method for producing a coil, the method comprising:

• providing a tube comprising a tube wall composed of an electrically conductive material;
• creating a coil string by:
• creating a plurality of inductive portions along the tube in the tube wall, wherein each inductive portion is shaped by a gap so that each inductive portion comprises a helix;
• and
• partially removing the tube wall between neighboring inductive portions thereby forming contact connection portions;
• singulating the coil string by separating the contact connection portions thereby forming individual coils, each individual coil comprising an inductive portion with two contact portions;
• and
• forming electrical terminals from the two contact portions.