Oil-smoke detecting device, smoke exhaust ventilator and control method thereof

Abstract

The invention discloses an oil-smoke detecting device, a smoke exhaust ventilator and a control method thereof. The oil-smoke detecting device comprises a light transmitter and a light receiver, wherein the light transmitter transmits a detection light; the light receiver collects the detection light reflected and / or refracted through oil smoke; and the control device is electrically connected with the light transmitter and the light receiver. The smoke exhaust ventilator comprises a main body, wherein a fan, a control device and the oil-smoke detecting device are arranged in the main body; asmoke guiding pipe is arranged on the top surface of the main body; the oil-smoke detecting device is arranged between the fan and the smoke guiding pipe; and the control device is electrically connected with the fan and is used for converting a detected light signal into an electric signal of an oil-smoke concentration value and controlling the rotary speed of the fan according to the oil-smoke concentration value. The oil-smoke detecting device provided by the invention is arranged in the main body of the smoke exhaust ventilator and between the fan and the smoke guiding pipe, so that the influence of the obstruction of the ambient light and barriers on oil-smoke detection is effectively avoided, and the sensitivity of an oil-smoke detection result is improved; and the smoke exhaust ventilator can automatically adjust the air speed, so that the energy consumption is reduced.

Description

technical field [0001] The invention relates to an oil fume detection device and a detection method, in particular to an oil fume detection device and a detection method for a range hood. Background technique [0002] When controlling traditional range hoods, the range hood gears are usually manually adjusted according to the size of the range hood, resulting in constant adjustments when cooking, and even stewing that does not require human supervision requires the user to adjust the range hood gears on the side. , the adjustment operation is frequent, which is troublesome, the effect is not good, and even wastes electric energy. For example, Chinese patent CN204830100U discloses a range hood and a control panel. There are multiple gear buttons on the control panel body, and each gear button corresponds to When you need to adjust the wind strength in different gears, just press the corresponding gear button directly. [0003] In the patent with the publication number CN1074...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to provide a cooking fume detection device, a range hood and its control method, which mainly solves the technical problem that the manual adjustment of the fan speed of the range hood takes time and leads to high energy consumption of the range hood, and secondly solves the existing intelligent The range hood that adjusts the fan speed, the technical problem that the oil pollution detection device affects the accuracy of the detection result, and once again solves the technical problem of low sensitivity of the existing oil fume detection device

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