Range hood with self-cleaning function

Abstract

The invention relates to a range hood with a self-cleaning function. The range hood comprises a shell and a fan, wherein a filter screen is arranged at an air inlet of the fan, the output shaft of a motor extends to the direction of the filter screen, and a gap is formed between the output shaft of the motor and the filter screen, and the fan is provided with a clutch mechanism capable of enablingthe filter screen to be connected with or separated from an output shaft of the motor; and the range hood is further comprises a cleaning medium supply mechanism and a spray pipe, wherein a water outlet end of the cleaning medium supply mechanism is connected with a first end of the spray pipe, a second end of the spray pipe is arranged to the front side surface of the filter screen correspondingly. Under a oil fume suction state of the range hood, the clutch mechanism drives the filter screen to be separated from the output shaft of the motor, fan impellers rotate, and the filter screen is static; when the range hood needs to be cleaned, the clutch mechanism drives the filter screen to be connected with the output shaft of the motor, the impellers and the filter screen rotate synchronously, at the moment, water can be discharged from the spray pipe to wash the filter screen, the impellers and a volute, so that oil contamination is prevented from accumulating, a self-cleaning effect is achieved, and then the range hood can keep a good oil fume removal function.

Description

Technical field [0001] The invention relates to a range hood with self-cleaning function. Background technique [0002] In recent years, people's living standards have been continuously improved, and their health and environmental awareness have increased. People are eager to have a healthy, clean and environmentally friendly home kitchen environment. Chinese patent CN200710051289 discloses a centrifugal purification device for air dust and dust and a method for manufacturing a rotating filter disc. The rotating filter disc is composed of a net disc skeleton and a radial radial filter arranged evenly wound in the circumferential direction of the edge. The above-mentioned filter plate is wound by a single filter wire, and the manufacturing method is complicated. The filter wire is easy to corrode and break. The filter wire is densely interlaced in the middle of the mesh plate, which causes large oil smoke wind resistance and poor oil flow to block the filter screen , So that the ...

AI Technical Summary

Problems solved by technology

[0004] The above two structures can achieve oil fume purification to a certain extent, but during use, the grease adhering to it is naturally removed by centrifugation, and stubborn grease will inevitably adhere to it after long-term use , thereby affecting its filtration performance

In addition, the above two structures can only clean the filter screen, and during the use of the range hood, a lot of oil will inevitably accumulate on the inner wall of the volute and the impeller. Affect the performance of the fan, resulting in a decline in the ability to exhaust oil fume

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