Method for making winding on ring magnetic core with airgap, comprises enclosure of magnetic ring within box which has means of diverting winding wire above the airgap and at auxiliary point

摘要

The magnetic core (1) is enclosed within a circular box with lid (20,21) which has a sensor chimney (23) and two auxiliary chimneys (24). The sensor chimney is located above the magnetic core airgap (11) and winding commences with making a loop (232) in the chimney and securing lids (33,34) which deflect coils to either side. The winding is completed by making soldered connections to terminals (43,44) An Independent claim is also included for a box with chimneys to enclose the magnetic core.