Waterproof and dustproof fan

Abstract

The invention discloses a waterproof and dustproof fan. The waterproof and dustproof fan comprises a seat body (1), a rotating fan blade (2), a magnetic ring (3), two bearings (41 and 42), a clamp spring (5), a stator component (6) and a plug (7), wherein the seat body (1) is provided with an internal shaft column (11) and an external shaft column (12); an annular cavity (15) is formed between the internal shaft column (11) and the external shaft column (12); the rotating fan blade (2) comprises a columnar wall (20), blades (24), and the large diameter end (22) and the small diameter end (21)of a stepped shaft which is coaxial with the columnar wall (20); an annular groove (23) is formed at the small diameter end (21); the magnetic ring (3) is fixed on the inner side of the columnar wall(20) and sleeved on the external shaft column (12); an annular convex block (18) is arranged in the internal shaft column (11); the two bearings (41 and 42) are sleeved at the small diameter end (21), embedded into the internal hole of the internal shaft column (11) and positioned on the two sides of the annular convex block (18); the clamp spring (5) is clamped and fixed on the annular groove (23); the winding of the stator component (6) is positioned in the annular cavity (15); and the opening end of the annular cavity (15) is sealed by the plug (7). The waterproof and dustproof fan can be applied to the field of fans.

Description

technical field [0001] The invention relates to a waterproof and dustproof fan. Background technique [0002] LED has the advantages of high luminous efficiency, power saving and long life, and its application is more and more extensive. LEDs are used in daily lighting. In order to meet the illumination requirements, it is generally necessary to concentrate multiple power LEDs on one lamp. Therefore, the heat dissipation of LEDs has become an important factor affecting the use and life of LED lamps, especially for high-power LED lamps. Heat dissipation has become a technical bottleneck affecting its wide application. Existing LED lamps are all passive heat dissipation, that is, heat is dissipated through radiator fins or similar devices. In order to improve the heat dissipation effect, it is necessary to increase the heat dissipation area as much as possible. Complicated, and its cooling effect is not satisfactory. The applicant once applied the heat dissipation fan to LE...

AI Technical Summary

Problems solved by technology

For high-power lamps such as industrial and mining lamps, in order to further improve the heat dissipation effect, they are often made into an open structure, resulting in poor waterproof and dustproof effects. For lamps with cooling fans, if the circuit part already has waterproof, Dust-proof effect, if the cooling fan has waterproof and dust-proof effects, the entire lamp can be directly applied in an open environment

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