Lampblack escape preventing structure and range hood with same
A range hood and oil fume prevention technology, which is applied in the field of oil fume escape structure, can solve problems such as bad experience, poor effect of oil suction, and reduce the comfort of the cooker's environment, so as to achieve the effect of good operating experience
Pending Publication Date: 2021-02-09
NINGBO FOTILE KITCHEN WARE CO LTD
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Problems solved by technology
The top-suction range hood adopts the principle of oil fume rising, and creates a negative pressure area directly above the stove to absorb and exhaust the naturally rising oil fume generated during cooking. Its advantages are stylish and simple appearance, large air volume, suitable for large spaces, and The disadvantage is that the installation height is far away from the stove. In the cooking state with a small amount of oil fume, the oil fume above the pot is easily disturbed by the ambient air, causing the oil fume to escape to the surroundings, resulting in poor oil fume absorption effect.
[0004] The power source of the side-suction range hood is closer to the stove, and most of the oil fumes that are closer to the stove are sucked away in an arc. The advantage is that the body is thin, and the operation is not easy to touch. , due to its low installation height, the negative pressure area is close to the smoke source, and the oil fume absorption effect is good. Inhalation and discharge
[0005] The suction port of the downdraft range hood is closer to the stove, the negative pressure area is closer to the smoke source, and the path of the fume movement is reduced. Compared with the other two types, the fume suction effect is better, but there are the following problems: 1. In the state of heavy oil fumes such as frying, due to the small distribution range of the inlet negative pressure area, the ability to capture the oil fume from high-speed frying is poor, so it is easy to cause the oil fume to easily escape to the surroundings
2. When cooking in a high-pot (steamer) or in a high-pot (steamer), the suction port is usually installed at a height of 380-420mm from the cooktop, and the operating space is limited, which has a certain sense of oppression and brings a bad experience to the user.
Forming an air curtain above the stove can prevent smoke from escaping to a certain extent, but the principle of the air curtain is to set up a blower. The air curtain can seal the oil fume in the negative pressure space of the suction chamber of the hood to a certain extent, but it cannot blow away the oil fume. Pull it back again, and the blown air is directed at the cooker, which will reduce the cooker's environmental comfort
Method used
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[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.
[0038]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element must have a particular orientation, be constructed, and operate in a particular orientation...
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The invention discloses a lampblack escape preventing structure. The lampblack escape preventing structure comprises an air supply fan and at least two flow deflectors, the air supply fan is providedwith an air inlet serving as a fluid inlet, the at least two flow deflectors define a ring-shaped outer pipe, a gap between every two adjacent flow deflectors forms a fluid outlet, and the flow deflectors are used for guiding lampblack airflow entering from the fluid inlet to flow out from the fluid outlets to form swirling airflow on the peripheries of the flow deflectors. The invention further discloses a range hood with the lampblack escape preventing structure and a control method of the range hood. Compared with the prior art, the range hood has the advantages that the flow deflectors arearranged, the fluid outlets communicating with the fluid inlet are formed in the gaps between the flow deflectors, fluid can be controlled to flow to the outlets in the fluid path, and therefore thewall attachment effect of controlling lampblack is achieved; the fluid forms airflow winding on the outer surfaces of the flow deflectors, and thus escape lampblack can be pulled back into the negative pressure range of a suction cavity again; and as airflow is not directly blown to the external space, the operation experience of a cook is good.
Description
technical field [0001] The invention relates to an oil fume purification device, in particular to an oil fume escape prevention structure, a range hood applied with the oil fume escape structure, and a control method for the range hood. Background technique [0002] Range hoods have become one of the indispensable kitchen appliances in modern families. The range hood uses the principle of fluid dynamics to work, sucks and exhausts the range hood through a centrifugal fan installed inside the range hood, and uses a filter to filter some grease particles. The centrifugal fan includes a volute, an impeller installed in the volute and a motor that drives the impeller to rotate. When the impeller rotates, a negative pressure suction is generated in the center of the fan, and the oil fume under the range hood is sucked into the fan, and after being accelerated by the fan, it is collected by the volute and guided out of the room. [0003] At present, common range hoods on the mar...
Claims
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IPC IPC(8): F24C15/20
CPCF24C15/20F24C15/2021
Inventor杨伟刚
OwnerNINGBO FOTILE KITCHEN WARE CO LTD