Electric resistance with low energy consumption PTC heating elements

摘要

An electric resistance with low energy consumption PTC heating elements, of the type comprising a tubular container (10), which forms the outer casing of the resistance and which contains a first layer of insulating material (20), at least one operating heating element, consisting of at least a first PTC plate (11), closed between a first (12) and a second diffusor (13), and at least a second layer of insulating material (21), consisting of magnesium oxide powder, which fills all the spaces available around the first PTC plate (11), inside the electric resistance there is also a thermostat (14), normally closed and situated at a certain distance (A) from the first diffusor (12), a third diffusor (15), situated at a pre-established distance (B) from the above first diffusor (12), and a maintenance heating element, consisting of at least a second PTC plate (16) closed between the third (15) and second diffusor (13) and positioned adjacent to the thermostat (14).