CIRCUIT PROTECTION ELEMENT OF CERAMIC RADIANT HEAT STRUCTURE AND MANUFACTURING METHOD THEREOF

摘要

The present invention includes a disc type heating element, a lead wire extending from the heating element, a ceramic case comprising a receiving groove for receiving the heating element and a guide groove for guiding the withdrawal of the lead wire, and a filler filled in the receiving groove when the heating element is received in the receiving groove, wherein the ceramic case includes a plurality of walls which defines the receiving groove, one of the plurality of walls has the guide groove, and the thickness of the wall having the guide groove is thicker than that of the other walls.