AIR CURTAIN GENERATING DEVICE

摘要

An air curtain generating device includes a blower (10) and a transmitting pipe (20), wherein the blower (10) generates an airflow which is transmitted in the transmitting pipe (20). The transmitting pipe (20) comprises a closure segment (21) for transmitting the airflow and an outlet segment (22), wherein the outlet segment (22) transmits the airflow from the closure segment (21) and comprises multiple outlet openings (221) for blowing out the airflow which are disposed in turn on the flow path of the airflow. The outlet segment (22) is divided into a turning section (223) corresponding to the closure segment (21) and a directing section (224) having a closure end (225), the total outlet sectional area per length of the directing section (224) gradually increases from the closure end (225) to the turning section (223), the total outlet sectional area per length of the turning section (223) is less than or equals to the minimal total outlet sectional area per length of the directing section (225), consequently to make the airflow from the air opening (221) form a uniform air curtain.