Range hood, outdoor dining car applying same and control method of range hood

Abstract

The invention relates to a range hood. The range hood comprises a housing, a filtering unit and a cleaning unit, wherein the housing is provided with a smoke suction inlet, a smoke discharge outlet and a smoke discharge channel communicating with the smoke suction inlet and the smoke discharge outlet; the filtering unit is arranged in the smoke discharge channel and at least comprises a first filtering module, the first filtering module comprises a filtering layer, and the filtering layer is used for absorbing a solution used for absorbing grease components in smoke; and the cleaning unit is arranged in the smoke discharge channel and comprises an extruding device and a liquid spraying device, the extruding device can act on the filtering layer so as to extrude liquid absorbed in the filtering layer, and a nozzle of the liquid spraying device faces the filtering layer and is used for spraying the solution to the filtering layer. The first filtering module of the filtering unit can be reused just after being subjected to extrusion operation and liquid spraying operation through the cleaning unit, so that efficient filtering capacity can be kept for a long time, and the user experience is improved. The invention further designs an outdoor dining car applying the range hood and a control method of the range hood.

Description

technical field [0001] The invention relates to the technical field of range hoods, in particular to a range hood, an outdoor dining car using the range hood and a control method for the range hood. Background technique [0002] Snack carts, outdoor barbecue appliances or picnic appliances will produce a lot of oily fumes to pollute the air, seriously affecting the work and life of nearby people, and affecting people's physical and mental health. At present, most outdoor barbecues have not taken anti-pollution measures such as removing oil fume. A few owners have adopted simple oil fume extraction equipment to suck the oil fume from upward natural emission to downward emission, which has not reduced pollution. [0003] In order to solve the above technical problems, the Chinese invention patent application with application number CN201510481578.8 (publication number CN105180236A) discloses "A Mobile Range Hood", which includes a cabinet frame with four legs and one side with...

AI Technical Summary

Problems solved by technology

[0004] The mobile range hood in the above-mentioned patent purifies the flue gas through the set oil filter, deodorizer and suction fan. Although it can collect, absorb and filter oil gas to a certain extent, and remove pollutants such as oil fume and peculiar smell However, in actual use, the above-mentioned oil filter (adopting lipophilic multi-layer network structure) and deodorizer (adopting ionized particle purification adsorber or activated carbon) will be covered with water after a period of use. The oil pollution or reaches saturation, resulting in a significant decrease in the oil fume filtration efficiency. Therefore, the user needs to remove it regularly for cleaning treatment or replace the corresponding filter module, resulting in high user cost and seriously affecting the user experience.

On the other hand, when the range hood is in use, the filter capacity (filter efficiency) of the filter module cannot be detected in time, and the user can only check whether the filter module needs to be cleaned or replaced periodically or according to his subjective feeling. Therefore, in this case, there is no guarantee that the filter module of the range hood can maintain high-efficiency filtration capacity for a long time

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