Method for adjusting air speed of extractor hood and extractor hood
A range hood and wind speed technology, applied in the direction of oil fume removal, heating methods, household stoves/stoves, etc., can solve problems such as inaccurate judgment and deviation of detection values, and achieve the effect of preventing resource waste, preventing errors, and improving matching
Pending Publication Date: 2021-08-20
QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD +1
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Problems solved by technology
[0005] Although the above solution combines the detection values obtained by the smoke sensor and temperature sensor to adjust the fan gear, it is based on the size of the smoke concentration and the temperature of the cooker. If the smoke sensor or temperature sensor is polluted by oily smoke, the detection value will still cause Deviation, it is impossible to accurately judge whether there is really oily smoke
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[0102] As an embodiment, the concentration range includes (-∞, ΔN1), [ΔN1, ΔN2), [ΔN2, ΔN3)...[ΔN4, ΔNx], (ΔNx, ΔNy), [ΔNy, ΔN5 )······【ΔN6,﹢∞). The first temporary rotational speed includes n1, n2, n3...nx, ny, n5...n6, and corresponds to the above-mentioned concentration change range one by one. ny
[0103] The manner of obtaining the second temporary rotational speed of the fan according to the variation of the cooker temperature includes,
[0104] The temperature of the cooker is divided into a plurality of temperature change intervals, each temperature change interval corresponds to a temporary rotational speed; the temperature change interval of the temperature change of the cooker is determined, and the temporary rotational speed corresponding to the temperature change interval is selected by control.
[0105] As an embodiment, the temperature range includes (-∞, ΔT1), [ΔT1, ΔT2), [ΔT2, ΔT3) ... [ΔT4, ΔTx], (ΔTx, ΔTy), [...
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The invention discloses a method for adjusting the air speed of an extractor hood and the extractor hood. The method for adjusting the air speed of the extractor hood comprises the following steps: obtaining the variable quantity of the oil smoke concentration; acquiring the variable quantity of the temperature of the stove; and correspondingly adjusting the rotating speed of a fan according to the relation between the variation of the oil smoke concentration and the variation of the stove temperature and the rotating speed of the fan. The rotating speed of the fan is correspondingly controlled and adjusted by integrating two parameter factors, namely the variation of the oil smoke concentration and the variation of the stove temperature, the variation of the oil smoke concentration replaces the oil smoke concentration, and the variation of the stove temperature replaces the stove temperature to serve as a reference factor for adjusting the rotating speed of the fan. Errors caused by inaccurate detection values due to the fact that a smoke detection device and / or a temperature detection device are / is polluted by oil stains and the like can be prevented, the accuracy of judgment on oil smoke is improved, and then the matching degree of the actual oil smoke amount and the rotating speed output by the fan is increased.
Description
technical field [0001] The invention belongs to the field of kitchen household appliances, and in particular relates to a method for adjusting wind speed of a range hood and the range hood. Background technique [0002] At present, there are two devices used to detect the size of cooking fume in the kitchen: one is an infrared photoelectric sensor that directly detects the smoke concentration based on the principle of refraction of cooking fume to infrared light. The emitted infrared light will be refracted to the infrared light receiving end, and the receiving end circuit will convert the received infrared light into a voltage value output. When the oil smoke is bigger, the infrared rays output from the transmitting end will be refracted into the receiving end more, so that The larger the output value of the receiving end is, the size of the fume is quantified into a specific value. The other is an infrared temperature sensor used to detect the temperature of the cooker. T...
Claims
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Login to View More IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 刘喜孟永哲石文
Owner QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD