| 摘要 |
<p>Heating device for vaporizers of insecticides or perfumes, of the type comprising a support body (1) made of heat-resistant material, said body having a seat for a heating element (2), a flat surface supporting a mat of a solid formulation and, in case, a hole or a saddle seat for housing a wick for a liquid formulation. A PTC heating element (3), which is housed in said seat and is provided with opposite metal conducting plates (4,5) connected to the terminals of an electric power supply circuit, is kept in position by the plate which is positioned near the opening of said seat and which has peripheral elastic means (7) which are able to engage with the internal walls of said seat. An ellipsoidal hollow (10) in the flat surface is able to ensure a more homogeneous distribution of the heat. <IMAGE></p> |
