公开(公告)号：US20230110462A1

公开(公告)日：2023-04-13

申请号：US17965174

申请日：2022-10-13

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Kiyoko TSUJI ,  Masato TANAKA ,  Hiroyuki MASUDA

IPC分类号： G03B21/20 ,  G03B21/16

摘要： A phosphor wheel unit includes a phosphor wheel that converts incident light into fluorescent light and emits the fluorescent light, a first heat exchanger having a plurality of fin members that is arranged and an airflow inlet surface through which an airflow generated by rotation of the phosphor wheel partially or entirely flows in, and a regulating member that regulates a direction of the airflow. The direction of the airflow regulated by the regulating member and a direction perpendicular to a rotation shaft of the phosphor wheel form an angle of between 0 degrees and 45 degrees on a surface perpendicular to an extending direction of a base material of the phosphor wheel. The airflow inlet surface is disposed intercepting the direction of the airflow regulated by the regulating member. The first heat exchanger cools a gas forming the airflow and the cooled gas returns to the phosphor wheel.