Stator combined structure of cooling fan

Abstract

Provided is a stator combined structure of a cooling fan. The stator combined structure is characterized by comprising a base, a bearing, a stepped combination locating part, a pressing assembly and a coil set; a shaft pipe containing pipe part with a containing groove inside is arranged in the center of the base in a protruding manner; the bearing is assembled in the containing groove of the shaft pipe containing part; the stepped combination locating part is formed at the end of the shaft pipe containing part and at least comprises a reducing radial combination face; the pressing assembly comprises a pressing edge part and a radial combination edge part, the pressing edge part abuts against the end of the bearing, and the radial combination edge part and the radial combination face of the shaft pipe containing part are in sleeving fit; and the coil set is provided with a combination hole to be sleeve-combined and located to the periphery of the shaft pipe containing part of the base and the periphery of the pressing assembly. Therefore, by means of large-area combination morphology of the stepped combination locating part, the state that the pressing assembly abuts against and locates the bearing can achieve the practical progressiveness that firmness is improved better.

Description

technical field [0001] The invention relates to a cooling fan, in particular to an innovative structural space design of its stator combination structure. Background technique [0002] In terms of the structural composition of the cooling fan, it is mainly composed of a stator and a rotor that can rotate with the stator as a fulcrum. The stator is composed of multiple components, such as a base part, a shaft tube part, a bearing, a claw piece, and a coil. And so on, because the current electronic products have a trend of miniaturization, the structural design of the cooling fan must also meet the requirements of this miniaturized structure. Therefore, how to further simplify the components of the cooling fan to facilitate the miniaturization of the structural space Production and assembly operations have become the goal of the industry to think about breakthroughs. [0003] In the existing stator structure design of cooling fans, in order to fix the bearing contained in the...

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Problems solved by technology

[0003] In the existing stator structure design of cooling fans, in order to fix the bearing contained in the shaft tube part, the industry usually uses a positioning component to assemble in the shaft tube part to achieve the purpose of pressing and fixing the bearing. However, due to the The assembly space faced by positioning components is quite small and narrow, so in fact, in addition to the high difficulty of component manufacturing and processing, assembly positioning and other aspects, the phenomenon of insufficient bonding strength and easy loosening is a common problem; moreover , since the current cooling fan must pass the standard verification of the mechanical shock project when it leaves the factory, this will increase the possibility of the aforementioned bearing positioning components getting loose, which will seriously affect the quality of the cooling fan

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