Electromagnetic apparatus, and method for producing such an electromagnetic apparatus

An electromagnetic apparatus, comprising:

• a magnetic core with a longitudinal axis;
• and
• a coil body arranged circumferentially around the magnetic core and which has at least one receiving region for receiving at least one coil winding of a coil;
• wherein the receiving region is formed by at least one wall which is made from the coil body material and has a first region which runs in the direction of the longitudinal axis of the magnetic core and at least one second region which runs transversely to the longitudinal axis of the magnetic core, and
• wherein the magnetic core has a circumferential fastening region which has a tooth-like contour in cross-section along the longitudinal axis of the magnetic core and, by displacement of the coil body material, is interlocked with the coil body material of the coil body such that the magnetic core is held on the coil body by the circumferential fastening region.

A method for producing an electromagnetic apparatus, the method comprising:

• supplying a magnetic core and a coil body;
• and
• pushing the magnetic core into the coil body or pushing the coil body onto the magnetic core until a circumferential fastening region of the magnetic core is arranged in the coil body;
• wherein the electromagnetic apparatus includes:
• the magnetic core with a longitudinal axis;
• and
• the coil body arranged circumferentially around the magnetic core and which has at least one receiving region for receiving at least one coil winding of a coil;
• wherein the receiving region is formed by at least one wall which is made from a coil body material and has a first region which runs in the direction of the longitudinal axis of the magnetic core and at least one second region which runs transversely to the longitudinal axis of the magnetic core, and
• wherein the magnetic core has a circumferential fastening region which has a tooth-like contour in cross-section along the longitudinal axis of the magnetic core, and which, by displacement of the coil body material, is interlocked with the coil body material of the coil body such that the magnetic core is held on the coil body by the circumferential fastening region.