Device (1) for autonomous evaporation of volatile substances comprising a receptacle (2) formed by a hollow housing (3) and a lid (4) practicable access to its interior, the receptacle (2) being provided with an opening inlet (5) of air and an outlet opening (6) of air made in respective walls thereof, being arranged inside the receptacle (2) a fan (7) capable of generating an air stream and an electric motor (8) to operate said fan (7), the receptacle (2) determining a housing (9) for the placement of a container (9a) with a volatile air freshener, so that the air impregnated with said air freshener is susceptible to being carried by the air current generated by the fan (7) towards the outside of the receptacle (2) through the outlet opening (6), the device (1) also comprising means for electrical supply of the motor (8), caracter curly because the device (1) comprises a printed circuit board (10) that integrates a reader (11) of a memory card (12) that stores information associated with a maximum time (tmax) of operation, and a microprocessor that controls a timer (t) for operating the motor (8) and allowing the motor (8) to be stopped when this time (t) reaches the maximum time (tmax) of operation established on the card (12). (Machine-translation by Google Translate, not legally binding)1. Dispositivo (1) de evaporación autónomo de sustancias volátiles que comprende un receptáculo (2) formado por una carcasa (3) hueca y una tapa (4) practicable de acceso a su interior, estando el receptáculo (2) provisto de una abertura de entrada (5) de aire y una abertura de salida (6) de aire practicadas en respectivas paredes del mismo, estando dispuestos en el interior del receptáculo (2) un ventilador (7) capaz de generar una corriente de aire y un motor eléctrico (8) para accionar dicho ventilador (7), determinando el receptáculo (2) un alojamiento (9) para la colocación de un envase (9a) con una sustancia ambientadora volátil, de modo que el aire impregnado con dicha sus
