Axial range hood

Abstract

An axial flow range hood, comprising: a curved pipe axial flow fume fan, a frame, an externally connected external exhaust pipe, and a curved pipe axial flow fume fan including: a curved pipe, a fan motor arranged in the curved pipe, and a fan motor installed in the curved pipe The fan body on the motor shaft, the motor is fixed in the curved pipe through the fan motor bracket; the curved pipe axial flow oil fume fan is installed on the frame, and the air inlet is vertically downward; the beneficial effects of the present invention are: a class of The brand-new mid-to-high-end axial flow range hood has all the advantages of large air suction volume and simple structure of the axial flow fan. Using a low-power motor can obtain an ideal oil fume extraction rate. It supports top suction installation and can make full use of the rising hot air flow in the cooking process. , significant energy-saving effect and significant reduction in manufacturing costs, a new technology product with strong competitiveness has been added to the mid-to-high-end range hood market, and the product types of mid-to-high-end range hoods have been enriched.

Description

technical field [0001] The invention relates to a range hood, in particular to a range hood in an axial flow suction and discharge mode. Background technique [0002] The cooker hood is an electrical appliance that purifies the kitchen environment. It can quickly discharge the harmful fumes from the combustion process of the stove and the cooking process to the outside, so as to protect the health of the cooks and ensure a good home environment. [0003] The fume fan belongs to the heart of the range hood and plays a decisive role in the performance of the range hood. [0004] Whether the existing mid-to-high-end range hoods are top suction type or side suction type, the range hood fans are all centrifugal fans. However, the structure and manufacturing process of centrifugal fans are complex, the price is high, and the exhaust air volume is smaller than that of axial flow fans of the same power. The prices of existing mid-to-high-end range hoods are generally high. [0005...

AI Technical Summary

Problems solved by technology

Moreover, the use of public flues to discharge oily fumes in buildings will also increase the shared area of ​​the building, reduce the effective use area, and increase the construction cost.

[0008] The axial flow fan is a fan product that is widely used. The outstanding advantages are: large air volume, simple structure, and low cost; the outstanding disadvantages are: the direction of air intake and exhaust is the same.

The installation restrictive conditions of the axial flow fan are highlighted. For example, the axial flow fan cannot be installed vertically above the stove, because it cannot achieve the purpose of exhausting the oil fume outdoors; and the exhaust air pressure is low, which makes it difficult to realize the axial flow fan. Long-distance air supply; In addition, in order to obtain sufficient exhaust air volume, the diameter of the air cylinder of the axial flow fan should not be too small, which makes it difficult to install it in the range hood shell; it is these outstanding shortcomings that cause the axial flow fan to Excluded from the field of medium and high-end range hoods, so far the field of medium and high-end range hoods is still dominated by centrifugal fans

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