Electric resistance heating element esp. hot air heater - has plate type heating conductor carrier of insulating material for meander shaped coiled heat conductor of resistance wire

摘要

The winding tip turned away from the carrier (1) and the winding limb are designed so that they project essentially radially at the heat conductor carrier (1), and the inner winding tips are fixed at the end region of the heat conductor carrier. The limbs of the windings (6') of the heat conductor (6) are bent over sections (6'') at right angles to the carrier (1), running in several spaced coaxial cylindrical planes. The free limb ends (8) extend in the outer cylindrical plane and are designed with larger lengths to the inner limb sections (6''). The bending turn (7) of the limb section (6'') near to the heat conductor carrier (1) stand proud of an endface. USE/ADVANTAGE - Electric resistance heating element esp. for fan heater. Gives effective stabilisation of heat conductor windings and allows high heating power in small flow cross section.