Fan assembly and household electrical appliance

Abstract

The invention discloses a fan assembly and a household electrical appliance. The fan assembly comprises a fan wheel assembly, a motor assembly and a main bearing, wherein the fan wheel assembly comprises one or more hubs and a plurality of blades distributed on the hubs, at least one hub is provided with a supporting part, and the supporting part is provided with a spindle hole; and the motor assembly comprises a stator assembly and a rotor assembly, the rotor assembly is arranged on the supporting part, the stator assembly is connected with a motor shaft, the main bearing is located in the spindle hole, and the motor shaft is inserted into the spindle hole and matched with the main bearing. When the fan assembly is assembled, the rotor assembly is firstly assembled with the supporting part and then matched with the rotor assembly in a sleeved manner. According to the fan assembly disclosed by the embodiment of the invention, the assembly difficulty of the fan assembly is reduced, unnecessary intermediate assemblies are also saved, and the material cost and the manufacturing cost are reduced. In addition, the fan assembly of the structure is compact in structure in the axial direction and greatly tightens the assembly space.

Description

technical field [0001] The invention relates to the field of home appliances, in particular to a fan assembly and a home appliance. Background technique [0002] The conventional structure of the fan assembly using a DC brushless motor is to lock and connect the shaft extension of the DC brushless motor to the coupling of the wind wheel assembly through a locking device such as a screw to realize the stator rotation of the DC brushless motor The magnetic field drives the rotor shaft of the rotor assembly to rotate, and the rotor shaft transmits kinetic energy to the wind wheel assembly through the coupling to drive the wind wheel assembly to rotate. The DC brushless motor used in this scheme is composed of rotor assembly, stator assembly, bearing and bearing bracket, etc., and generally needs to install bearings on the rotor shafts on both sides of the rotor assembly axially, and use them separately Bearing brackets or bearing chambers for support and fixation. In order to...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the fan assembly of this scheme has problems such as many parts, complex structure, many and complicated assembly steps, and low degree of automation.

Moreover, due to many parts and complex assembly, the cost of materials and manufacturing costs are also high

In addition, the bearings on both sides of the axial direction of the rotor assembly and the motor have shaft extensions, resulting in a long axial length of the fan assembly, which occupies the assembly space of household appliances (such as air-conditioning wall-mounted machines, etc.) that use this fan assembly. It is not conducive to the realization of its miniaturization

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