| 摘要 |
<p>A forced-convection air heater element, particularly for clothes dryers, comprising a metal box casing (1) with at least one entry aperture (4) for the air to be heated and at least one exit aperture (5) for the heated air, and housing at least one armoured electrical resistance element (7) provided with a heat radiator (13), characterised in that the radiator (13) consists of a plurality of thermal diffusers (14,19,21) thermally connected to the armoured resistance element (7) and spaced from the walls of said casing (1), said thermal diffusers (14,19,21) and said casing (1) being constructed of diecast aluminium alloy the connection between the electrical resistance element (7) and the walls of the casing being made only at the two ends of said resistance element. <IMAGE></p> |
