A constant air volume control method for a range hood
A range hood and control method technology, applied in the direction of oil fume removal, heating methods, household stoves/stoves, etc., can solve problems such as poor range hood effect, achieve good user experience, increase smoke exhaust power, and reduce noise
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[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0032] Such as image 3 As shown in , the user turns on the indoor range hood and selects the maximum gear built into the range hood. The air volume range of this gear is [Q 1 ,Q 2 ], assuming that the built-in maximum gear is 10 gears, the default initial gear is 5 gears when starting up. At present, the control panel of the range hood basically has three fixed gears: strong, medium and weak, and each fixed gear corresponds to several built-in gears.
[0033] Such as Figure 4 As shown, the motor of the indoor range hood is a DC motor. To judge the current motor speed, use the relational expression of motor air volume-speed Q=A+B×n+C×n 2 to calculate the current speed at the corresponding gear. The actual air volume value Q. Compare the Q value with the difference between Q1 and Q2. If Q is greater than the Q2 value, it means that the ai...
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