An air outlet device and an internal circulation range hood using the air outlet device

Abstract

The invention discloses an air outlet device, comprising a hollow decorative cover, characterized in that: the bottom opening of the decorative cover is used for air intake, the top of the decorative cover is provided with a wind guide plate, and the wind guide plate The top plate, the left and right sides and the front side of the top plate are closely attached to the corresponding positions of the decorative cover, the top plate is gradually inclined upward from the back to the front, and the decorative cover is provided with an air outlet, and the top of the air outlet not higher than the roof. Also disclosed is an internal circulation range hood applied with the air outlet device. By setting the slanted upward wind deflector, the airflow from the bottom of the decorative cover can expand and flow forward along the slope from the contact point with the wind deflector, avoiding the large wind resistance noise caused by the backward flow hitting the back wall.

Description

technical field [0001] The invention relates to a cooking fume purification device, in particular to an air outlet device and an internal circulation range hood using the air outlet device. Background technique [0002] Range hoods have become one of the indispensable kitchen appliances in modern families. According to the fume discharge method, range hoods can be divided into external discharge type and internal circulation type. The current internal circulation range hood mainly inhales the oil fume and air through the fan system, absorbs and filters the filter system in the whole machine, and then discharges the purified air into the room. Because the exhaust air volume is large, if it is directly discharged, the discharged When the air flow is directly blown to the ceiling, it will form a rebound and return flow, and the downward air supply will interfere with the user's cooking. Therefore, a box-type air outlet device is generally added, and the upward air from the air...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing box-type air-guiding box 2' utilizes the principle of a right-angle tee, and when the wind of the air outlet is upward, there is a phenomenon of right-angle turning in the box-type air-guiding box 2', while the air-guiding box 2 The internal space structure is limited, resulting in a large wind resistance in the connecting pipe 3', and the direct blow to the top of the air guide box 2', forming local noise; in addition, although the left and right air outlets are set, due to the high wind speed , the refraction of the airflow is actually formed on the upper top of the air guide box 2', and there is a phenomenon of downward airflow, which affects the user experience, and at the same time forms turbulent interference to the stove for cooking with an open flame; at the same time, the left and right sides are horizontally If the wind area is too small, it is easy to cause blockage of the air outlet channel, increase the exhaust resistance of the fan system, and increase the noise

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