Mounting structure of range hood motor and range hood

Abstract

The invention relates to the field of range hoods, and discloses a mounting structure of a range hood motor and a range hood. The mounting structure of the range hood motor comprises the motor (10), a fan volute (20) and a motor bracket (30), wherein the motor is fixed to the motor bracket; the motor bracket comprises a mounting body (31) and a plurality of supporting feet (32) fixed to the fan volute; and the plurality of supporting feet integrally extend out of the mounting body and are uniformly distributed on the mounting body. According to the mounting structure of the range hood motor provided by the invention, the motor bracket is integrally formed, so that the structure is simple, the cost is relatively low, the requirement of the processing technology is low, and the assembly is simple during mass production; the integrally formed structure is adopted, so that the plurality of supporting feet are stressed at the same time and are not liable to deform, and vibration noise caused by nonuniform stress can be reduced; and besides, the supporting feet are uniformly distributed on the mounting body, so that vortex generated by airflow when entering an impeller from a back plate of the fan volute can be effectively reduced, and the flowing noise is reduced.

Description

technical field [0001] The invention relates to a range hood, in particular to a motor installation structure of the range hood and the range hood. Background technique [0002] With the improvement of people's living standards, the range hood has almost become an indispensable electrical appliance in the kitchen as a kitchen appliance for purifying the kitchen environment. The range hood is installed above the stove, and is used to quickly suck away the waste burned by the stove and the oil fume harmful to the human body produced during the cooking process, and discharge it to the outside to reduce pollution and purify the air. The fan system is the core power system of the range hood, and the commonly used fan system is a centrifugal fan. The centrifugal fan is mainly composed of a motor, an impeller and a fan volute, which can generate large wind pressure and air volume, and the motor is installed through the motor bracket. [0003] Generally, there are two kinds of mot...

AI Technical Summary

Problems solved by technology

[0004] However, the four legs of the motor bracket in the first solution can only play a supporting role in two directions due to the strap-like distribution, so the rigidity is small, and the split design is prone to errors during installation and positioning. As a result, the concentricity of the shaft after the motor is installed is not good

In addition, during the long-term operation and transportation of the split motor bracket, due to the uneven force on the bracket, the bracket is easily deformed, which easily causes the deformation of the volute back plate, the concentricity of the impeller of the centrifugal fan becomes worse, and the noise becomes louder

Although the second scheme has a good shock absorption effect, due to the use of two motor brackets, the structure is complex, the cost is high, and the actual installation process is complicated, which is not conducive to production. Concentricity

The most important of these is that the use of two or more motor brackets will seriously increase air resistance, which will easily cause flow-induced vibration (vibration caused by fluid flow)

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