Patent ID: 8227932
Filing Date: 2012-07-24
Classification: F03D,F05B,Y02E

Abstract:
1. A wind generator, comprising: a base; a monopole tower that stands on the base; a nacelle disposed on an upper end of the monopole tower; a power generator disposed in the nacelle; a rotor head that has windmill blades and is rotatable, when the windmill blades receive wind power, to drive the power generator to generate electricity; a heating element disposed in the tower; a cooling medium for cooling the heating element; a cooling heat exchanger for absorbing heat from the cooling medium by exchanging heat with outside air; and an outside air-circulation flow path of a closed space in the tower and having an outside-air inflow opening and an outside-air discharge opening; wherein the outside-air inflow opening is in communication with a lower opening in a shell plate of the tower, the outside-air discharge opening is in communication with an upper opening in the shell plate, and the cooling heat exchanger is disposed at the outside-air inflow opening, that is in communication with the lower opening in the shell plate, to provide the wind generator with a natural convection circulating mechanism due to a chimney effect.