Magnetic gear speed-change oil fume separation structure and range hood

Abstract

The invention discloses a magnetic gear speed-change oil fume separation structure and a range hood. The magnetic gear speed-change oil fume separation structure comprises a rotary oil separation ring, a magnetic gear speed-change mechanism, a blowing fan and a motor, wherein the magnetic gear speed-change mechanism comprises an inner rotor assembly, a middle stator assembly and an outer rotor assembly; the middle stator assembly is arranged between the inner rotor assembly and the outer rotor assembly, the outer rotor assembly and the inner rotor assembly rotate in opposite directions, and the rotating speed of the outer rotor assembly is greater than that of the inner rotor assembly; the inner rotor assembly, the blowing fan and the motor rotating shaft rotate in the same direction at the same speed; and the rotary oil separation ring and the outer rotor assembly rotate in the same direction and at the same speed. According to the invention, the rotating speed increasing conversion from the low-speed motor rotating shaft to the high-speed rotary oil separation ring is realized in a non-contact manner, and the rotary oil separation ring with high rotating speed can capture and throw away grease particles more efficiently by virtue of stronger centrifugal force, so that the grease separation rate and the internal cleanness of the range hood are improved to a great extent.

Description

technical field [0001] The invention belongs to the technical field of range hoods, and more specifically relates to a magnetic gear variable-speed oil fume separation structure and a range hood. Background technique [0002] With the improvement of people's living standards, the internal cleanliness and working noise of range hood products have become two important performance evaluation indicators in the range hood product field in addition to the range hood effect. At present, in order to ensure the cleanliness and working efficiency of components such as blower fans and motors inside the range hood, the existing range hood products are equipped with a fume separation device at the air inlet to block large particles such as grease and water particles inside the separation device. And filtered through the oil tank, so as to realize the effective separation of grease particles and fume gas. [0003] At present, there are three common technical solutions for oil fume separa...

AI Technical Summary

Problems solved by technology

In addition, since the rotating oil-separating ring is directly connected to the blower fan or the motor shaft, the rotating oil-separating ring will cause unbalanced disturbances, which will seriously affect the dynamic balance of the latter two, and it is very likely to generate large noise and reduce user comfort.

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