Range hood and control method of range hood

Abstract

The invention discloses a range hood. The range hood comprises a range hood body and a monitoring device, and is characterized in that the monitoring device comprises a first distance measuring sensorand a second distance measuring sensor which are arranged on the range hood body, the position of the arranged first distance measuring sensor is used for being corresponding to the center of the bottom of a pot on a cooking bench below the range hood, and the position of the arranged second distance measuring sensor is used for being corresponding to the edge of the pot. The invention further discloses a control method of the above range hood. Multiple points of the two distance measuring sensors are utilized to judge whether a pot cover or food enters the pot or not to be used as a basis for judging whether cooking fume is generated or not, the rotating speed of a fan is adjusted in advance under the condition that the cooking fume is not generated, the prevention effect is achieved, the cooking experience of a user is improved, and the problem of the cooking fume delayed adsorption is solved.

Description

technical field [0001] The invention relates to a cooking fume purification device, in particular to a range hood and a control method for the range hood. Background technique [0002] The range hood has become one of the indispensable kitchen appliances in modern families. It is installed above the kitchen stove, which can quickly suck away the waste burned by the stove and the harmful oil fume generated during the cooking process, and discharge it outside, reducing the Pollution, air purification, and anti-virus, anti-explosion safety guarantee function. [0003] 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 th...

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned prior art, the automatic control method is to compare the difference between the oil fume image and the smoke-free background image through the pressure or the concentration of the oil fume, and then increase the speed for adsorption after the oil fume diffuses out, which is a hysteresis control method. , the user experience is poor; in addition, the control method of image recognition is easily affected by ambient light, and in the environment of oily smoke for a long time, it is easy to fail, and the accuracy is not high, which is prone to misjudgment

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