| 摘要 |
PROBLEM TO BE SOLVED: To provide an airflow diffusion device (a diffusion fan) which diffuses air with suction flow of an air conditioner.SOLUTION: An air-flow diffusion device includes: an impeller including an air receiving member which receives air suctioned from an intake port of an air conditioner, a diffusion member which is disposed at the outer peripheral side of the air receiving member and diffuses the air blown from an air outlet port of the air conditioner, and a hub member supporting the air receiving member and the diffusion member; a shaft member forming a rotary shaft of the impeller; and an attachment member which supports the shaft member at a position where the impeller is rotated by the air suctioned from the intake port of the air conditioner; and a bearing member which is formed by multiple rollers and maintains rotation of the impeller. |
