Wireless charging transmitter comprising - a charging surface mat comprising a plurality of air flow openings (3a, 3b, 3c), - at least one support arranged (4a, 4b) on or alongside the charging surface mat in order to keep a charging mobile device at a distance (d) away of the charging surface mat, - a wireless charging antenna construction comprising one or more transmission coils (6a, 6b, 6c), - an electric fan, - a PCBA with electronics for controlling a charging process and a cooling process, - a suction duct which is created between the charging surface mat and the wireless charging antenna construction, - a blowing duct which is created between the wireless charging antenna construction and the PCBA, - a connection chamber that connects the suction duct and the blowing duct, - wherein the electric fan is arranged within the connection chamber and divides the connection chamber, - wherein while the electric fan is running: air flows from a surrounding of the wireless charging transmitter through the openings (3a, 3b, 3c) of the charging surface mat into the suction duct, to the connection chamber, through the fan and through the blowing duct and out of the wireless charging transmitter, - wherein the wireless charging transmitter comprises an outlet nozzle (15; 17; 19) which is arranged along the blowing duct and has at least one outlet opening (15a; 17a; 19a, 19b, 19c) leading out of the wireless charging transmitter, wherein the outlet opening (15a; 17a; 19a, 19b, 19c) is arranged in one of the supports (4a, 4b) and at least in a side wall of the wireless charging transmitter or in a bottom wall of the wireless charging transmitter. - a charging surface mat comprising a plurality of air flow openings (3a, 3b, 3c), - at least one support arranged (4a, 4b) on or alongside the charging surface mat in order to keep a charging mobile device at a distance (d) away of the charging surface mat, - a wireless charging antenna construction comprising one or more transmission coils (6a, 6b, 6c), - an electric fan, - a PCBA with electronics for controlling a charging process and a cooling process, - a suction duct which is created between the charging surface mat and the wireless charging antenna construction, - a blowing duct which is created between the wireless charging antenna construction and the PCBA, - a connection chamber that connects the suction duct and the blowing duct, - wherein the electric fan is arranged within the connection chamber and divides the connection chamber, - wherein while the electric fan is running: air flows from a surrounding of the wireless charging transmitter through the openings (3a, 3b, 3c) of the charging surface mat into the suction duct, to the connection chamber, through the fan and through the blowing duct and out of the wireless charging transmitter, - wherein the wireless charging transmitter comprises an outlet nozzle (15; 17; 19) which is arranged along the blowing duct and has at least one outlet opening (15a; 17a; 19a, 19b, 19c) leading out of the wireless charging transmitter, wherein the outlet opening (15a; 17a; 19a, 19b, 19c) is arranged in one of the supports (4a, 4b) and at least in a side wall of the wireless charging transmitter or in a bottom wall of the wireless charging transmitter.