| 摘要 |
A fan device includes: a fan housing (1) configured with a receiving space (10) defined among opposite top and bottom walls (12, 11), and a surrounding side wall (13); and a fan impeller (2) mounted in the receiving space (10), disposed adjacent to an air outlet (121) in the top wall (12) and operable to rotate about a central axis (X) transverse to the top and bottom walls (12, 11) of the fan housing (1). The fan impeller (2) includes a hub body (21) disposed coaxially with the central axis (X) , and a plurality of angularly spaced apart fan blades (22) extending outwardly and radially from the hub body (21). An angular distance ( Æ ) between each adjacent pair of the fan blades (22) is different from that of any other adjacent pair of the fan blades (22). |
