Coil arrangement for electromagnetic relay, has coil externally wound at another coil, where current density in latter coil is larger than another current density in former coil in energization state of arrangement

摘要

The arrangement (2) has a coil (21) e.g. solenoid, externally wound at another coil (20). Current density in the latter coil is larger than another current density in the former coil in an energization state of the arrangement. The coils are electrically connected to each other in parallel or in series. The coils comprise winding numbers, where one winding number is larger than another winding number. A cross-section of winding material i.e. copper wire, of the latter coil is larger than another cross-section of another winding material of the former coil. An independent claim is also included for a method for manufacturing a coil arrangement.