Wireless charging transmitter comprising - a charging surface mat comprising a plurality of air flow openings , - at least one support arranged on or alongside the charging surface mat in order to keep a charging mobile device (MD) at a distance (d) away of the charging surface mat , - a wireless charging antenna construction comprising one or more transmission coils , - 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 (A) flows from a surrounding (SR) of the wireless charging transmitter through the openings 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 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 , - at least one support arranged on or alongside the charging surface mat in order to keep a charging mobile device (MD) at a distance (d) away of the charging surface mat , - a wireless charging antenna construction comprising one or more transmission coils , - 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 (A) flows from a surrounding (SR) of the wireless charging transmitter through the openings 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 and at least in a side wall of the wireless charging transmitter or in a bottom wall of the wireless charging transmitter . <EOS>