Device and method for evaporating volatile substances, especially perfumes and/or insecticides, and heating body

A method for evaporating volatile substances the method comprising:

• providing an evaporation device with a container, in which a substance to be evaporated is received;
• a wick inserted into the container as capillary element, protruding by a wick end region from the container;
• a heating device, having a heating body being configured to supply heat to said wick end region, and said heating body being formed with a wick recess, forming an air flow channel with an inlet opening and an outlet opening spaced apart from the inlet opening, and in which the wick end region can be received under air flow around the wick with a circumferential gap spacing from the wick recess wall region;
• and an adjusting device, by means of which a depth of penetration of the wick end region into the wick recess and thus a quantity of heat transferred to the wick end region and/or by means of which a quantity of the substance dispensed to an air flow through the wick recess and around the wick end region is adjustable;
• providing the wick recess with a throttling segment having a reduced flow cross section, situated above the wick end region looking in a flow direction when the wick end region protrudes into the wick recess;
• and
• activating the adjusting device to change, in addition to a depth of penetration of the wick end region, a position of a free wick end of the wick end region relative to the throttling segment, to change the position relative to a region of a narrowest flow cross section of the throttling segment associated with the free wick end, and thereby adjust an air mass flow through the wick recess or a flow velocity of a substance-laden substance air flow emerging from the outlet opening.