A WINDOW BLIND HAVING FLUID FLOW PIPE

摘要

PURPOSE: A window blind having a flow channel is provided to heat the air in the flow channel with solar energy and supply the heated air to a device, thereby reducing consumption of electricity. CONSTITUTION: A window blind comprises a flow combined tilt angle control rotation shaft(3030), a flow blind slat, and connection flow pipes. The flow combined tilt angle control rotation shaft replaces a blind tilt angle control rotation shaft. The flow blind slat replaces a blind slat(141) or is attached to the blind slat. A flow channel is formed through the connection flow pipes and slat flow pipes of the blind slat to the flow combined tilt angle control rotation shaft.