REGOLATORE DI TENSIONE PER UN ELETTROVENTILATORE DI RAFFREDDAMENTO, PARTICOLARMENTE PER UNO SCAMBIATORE DI CALORE DI UN AUTOVEICOLO

摘要

A voltage controller has an casing, with a plurality of electrical connecting terminals, and housing a signal processing circuit and a power circuit, facing one another and connected to these terminals. A thermally fusible safety device is fitted between the circuits, and is electrically connected between one of the terminals and the power circuit. The safety device has a strip of resiliently deformable and electrically conductive material and a plate-like positioning and support formation. The formation has a seat which forms an opening through which a first end of the strip is connected to the power circuit. A second end of the strip is connected to one of the terminals by a thermally fusible connection. The strip is coupled to the formation with a pre-loading arranged to break the connection of its second end.