CN CN208417092U
The utility model relates to a fan without blade, include base and the casing that supports by the base, casing lower part internal motor and impeller, casing upper portion is equipped with annular fan housing, has the circular air flue who is used for air compression in the annular fan housing, is provided with a plurality of air outlets on annular fan housing, around the central through -hole ofannular fan housing, the motor drives the impeller and sends into the air circular air flue and blow off through the air outlet, circular air flue's cross section is similar trapezoidal, and this circular air flue's cross section follow up diminishes down gradually. Compared with the prior art, the utility model discloses a wind channel structure can not only guarantee that the air output is even, moreover simple structure.
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