| CPC F04D 29/601 (2013.01) [F04D 29/403 (2013.01); F04D 25/02 (2013.01)] | 20 Claims |

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7. An air pump, comprising:
a casing, an impeller, a driving member and air pump upper cover;
wherein the air pump upper cover comprises a main body and a magnetic element arranged in the main body;
wherein the main body includes a first cover body and a second cover body, and the second cover body is provided with an annular boss extending towards the first cover body, and the first cover body is provided with an avoidance hole corresponding to the annular boss, and a gap is provided between the avoidance hole and the annular boss;
wherein the magnetic element is disposed around the avoidance hole, and configured to allow the air pump to attach to ferromagnetic metal parts via magnetic force, while the first cover body and the second cover body together form a chamber for accommodating the magnetic element;
wherein a side edge or a bottom of the casing is provided with an exhaust port, and the interior of the casing is provided with a first chamber and a second chamber, which are respectively used for placing the impeller and the driving member, wherein the impeller and the driving member are operably connected;
wherein the air pump upper cover covers the first chamber, and when driven by the driving member, the impeller sucks external gas into the first chamber through the annular boss, and vents the gas through the exhaust port, wherein the annular boss forms an air inlet of the air pump.
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