Blower component and household electric appliance provided with same

Abstract

The invention discloses a blower component and a household electric appliance provided with the same. The blower component comprises a motor bracket, a motor, an impeller and a flow concentration structure, wherein the motor bracket is provided with a through hole; the motor is fixed at the front side of the motor bracket; the impeller is positioned in the through hole and is connected with a motor shaft of the motor; and the front end of the flow concentration structure is fixed on the inner side wall of the through hole, the back end surface of the flow concentration structure is positioned at the back side of a back surface of the motor bracket, the front end of the flow concentration structure is in round corner transition with the front side wall of the motor bracket, the radius of a round corner of the round corner transition is R, the height of the impeller is B, the rotation outside diameter of the impeller is D1, the distance between the back edge of the impeller and the back end surface of the flow concentration structure is L, and the inside diameter of the flow concentration structure is D2, wherein R is more than or equal to 3% of D1 and less than or equal to 10% of D1, L is more than or equal to 5% of B and less than or equal to 30% of B, and D2 is more than or equal to 1.02D1 and less than or equal to 1.09D1. The blower component according to the invention can improve the air volume of the blower component and is beneficial for reducing noise at the same time.

Description

Technical field [0001] The invention relates to the technical field of household appliances, in particular to a fan assembly and household appliances having the same. Background technique [0002] Generally, a fan is usually provided in household appliances to facilitate heat dissipation of the household appliances. [0003] The air volume of the wind blown by the fan assembly in the related art is small and the noise is large. Although the speed of the motor can be increased to increase the air supply volume, this results in greater noise from the fan assembly, and the high speed of the motor aggravates the loss of the motor, increases the cost, and reduces reliability and safety. In addition, large-diameter impellers are sometimes used to solve the problem when the air volume is insufficient. This will not only increase the volume of the fan assembly itself, but also undoubtedly increase the volume of the whole household appliances. Moreover, considering that the large-diameter ...

AI Technical Summary

Problems solved by technology

[0003] The air volume blown by the fan assembly in the related art is small and the noise is large

Although the air supply volume can be increased by increasing the speed of the motor, this leads to greater noise of the fan assembly, and the high speed of the motor increases the loss of the motor, increases the cost, and reduces the reliability and safety

In addition, when the air volume is not enough, a large-diameter impeller is sometimes used to solve the problem. This will not only increase the volume of the fan component itself, but also increase the overall volume of the household appliances. Moreover, considering that the large-diameter impeller is easy to deform under high temperature, this There are higher requirements for the material of the large-diameter impeller, and stricter requirements for the adjustment of dynamic balance, resulting in an increase in material costs and installation costs

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