Wireless power transmitter

A wireless power transmitter includes a body (303) having a coil module (370) therein, and configured to transmit power in a wireless manner, a blowing module (325) configured to cool the coil module (370) by moving a fluid by convection and a guide module (380) extending from the blowing module (325) to outside of the body (303) such that the fluid from the blowing module (325) is discharged to outside of the body (303) after cooling the coil module (370). The guide module (380) has a shape corresponding to an outer circumference of the coil module (370) partially or wholly.