| 摘要 |
A fan comprises a housing (1, 3) having a compartment (11, 31) formed inside, and at least one lateral air inlet (12, 32) and at least one lateral air outlet (13, 33) both penetrating through the inner and outer surfaces of the housing (1, 3) and communicating with the compartment (11, 31); and a motor (2, 4) mounted inside the compartment (11, 31) of the housing (1, 3) and having a stator (21, 41) and an impeller (22, 42), with the impeller (22, 42) rotatably coupled to the stator (21, 41 ) and further containing a hub (221, 421) and a plurality of blades (222, 422) mounted to a top (223, 423) of the hub (221, 421), with each blade (222, 422) having a first end (222a, 422a) and a second end (222b, 422b) in the radial direction of the impeller (22, 42) opposite to each other, with the first end (222a, 422a) of each blade (222, 422) facing outward, and with the second ends (222b, 422b) of the blades (222, 422) defining an airflow-area (23, 43). |
