No-clean range hood

Abstract

The invention relates to a no-clean range hood. The inner wall of a channel, the inner wall of a spiral case and an impeller inside the range hood are each coated with a layer of electro-thermal coating in a spraying manner; the edge or the two ends of the electro-thermal coatings are correspondingly provided with anode and cathode connecting terminals; and the anode and cathode connecting terminals are connected with a power supply through a control switch of the range hood. The no-clean range hood provided by the invention needs not to change the internal structure of a flue of the range hood; the flue inside an enclosure, the inner wall of the spiral case and the surface of the impeller are each coated with one layer of electro-thermal coating in a spraying manner; afterwards two connecting terminals are lead out of the edge of the electro-thermal coating; uniform heating of the electro-thermal coatings should be fully considered when the connecting terminals are arranged; the electro-thermal coatings generate heat to melt oil stains on the surface; the molten oil stains can be automatically collected in an oil collection tank or an oil collection box along the flue, so the problem about internal residual oil stains inside the range hood is fundamentally solved, and real no-clean is realized.

Description

technical field [0001] The invention relates to range hood technology, in particular to a cleaning-free range hood. Background technique [0002] At present, many range hoods on the market claim to be no-cleaning for life. The no-cleaning means that the oil screen will be sent regularly for replacement. Although the oil screen can filter some oil fume and keep the oil fume on the filter screen, more oil fume will pass through the filter screen. Enter the volute and the flue, and discharge most of the oil fume through the flue through the impeller in the volute. During the process of exhausting the oil fume, some oil fume will stick to the channel inside the casing, the inner wall of the volute and the surface of the impeller, so that After a long period of accumulation, a thick layer of oil will condense inside the range hood. This part of the condensed oil will deteriorate and smell after a long time, and even affect the health of the body. The inner wall of the channel, t...

AI Technical Summary

Problems solved by technology

[0002] At present, many range hoods on the market claim to be no-cleaning for life. The no-cleaning means that the oil screen will be sent regularly for replacement. Although the oil screen can filter some oil fume and keep the oil fume on the filter screen, more oil fume will pass through the filter screen. Enter the volute and the flue, and discharge most of the oil fume through the flue through the impeller in the volute. During the process of exhausting the oil fume, some oil fume will stick to the channel inside the casing, the inner wall of the volute and the surface of the impeller, so that After a long period of accumulation, a thick layer of oil will condense inside the range hood. This part of the condensed oil will deteriorate and smell after a long time, and even affect the health of the body. The inner wall of the channel, the inner wall of the volute and the impeller cannot be cleaned at ordinary times. The most common way at present is to call professionals to disassemble and clean the machine regularly. The disassembly and reassembly of the machine will affect the precision of parts matching and the life of the machine. It will also pollute the kitchen during the cleaning process, which is very inconvenient

[0003] Someone has designed a no-clean range hood for this reason, and a hot water spray structure is arranged inside the range hood. Water dissolves the oil on the inner wall of the channel and the inner wall of the volute, and then discharges it along the water flow. This method has a certain effect, but this structure cannot fundamentally realize no-cleaning, and the top and corners of the channel and the volute are often not easy to clean It is realized that the waste water needs to be collected after cleaning, and the capacity of the general oil cup is not enough, so it is necessary to re-set the structure inside the casing to form a diversion channel inside the casing; at the same time, the most important impeller cannot be cleaned, the impeller Condensed oil residue on the surface will increase the load on the motor, which will seriously affect the extraction efficiency of the range hood, and also seriously affect the service life of the motor

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