發明
中華民國
100123527
I 376089
改變排油煙機風扇轉速之方法
國立虎尾科技大學
2012/11/01
因產學合作計畫與廠商取得市售之排油煙機之下,發現到現今市售之排煙機是以交流感應馬達為主,在改變風速的選擇上,只有少許的兩段或三段,縱使是較高階之排油煙機,在選擇上仍只有六段,必須由手動的切換方式改變轉速,非常的不便。 本計畫使用光敏電阻及發光二極體作為感側裝置,發光二極體會因油煙的濃淡程度不同致使光敏電阻感受到光的強弱程度不同故而其改變電阻值之大小,將偵測到的電阻值大小透過微電腦之A/D轉換之程式來自動改變PWM。藉此方式改變PWM之技術故能改變排油煙機風扇轉速。 Plan for industry cooperation with the manufacturer to obtain commercially available hoods, it was discovered that the smoke machine is now commercially available AC induction motors, the choice of changing wind speed, only two or three little Even if a higher order of range hoods, the choice is still only Liuduan, ways must be changed by manually switching speed, very inconvenient. This project uses photosensitive resistor and light emitting diodes as a sense of lateral devices, light emitting diodes understand the different shades because of fumes resulting photosensitive resistance felt different levels of light intensity change the resistance value therefore its size, the resistance will be detected Value of the size of the microcomputer through the A / D conversion program to automatically change the PWM. PWM mode to change the technology so the range hood fan speed change.
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