| Summary: | 碩士 === 國立虎尾科技大學 === 電機工程研究所 === 99 === Brushless DC motor technology has gradually improved, and been broadly applied in many home appliances. Induction motors of range hoods have also slowly been replaced in recent years. In comparison, brushless DC motors have the advantages of high efficiency, small volume and good revolution control, which not can only save more power, but also reduce noise in the kitchen. The paper applied Ansoft Maxwell electromagnetic field simulation software to analyze and assess whether brushless DC motors are applicable for range hoods, and at the same time, the motor drivers are also developed and designed to provide the motors with more stable revolution after introducing a load.
The parameters that impact the performance of range hoods include the flow channel, fan and motor, which have made improving the design more complicated and difficult. The major purpose of the flow channel and fan design is to reduce resistance and to obtain sufficient air flow and air pressure, and the rotation of the fan must be driven by a motor. How to design the motor and driver in a limited space to ensure sufficient speed and torque is a very important issue. The pre-motor simulation and analysis will save a lot of research and Development time. In regards to the paper processed simulation and analysis focusing on the traditional range hoods with induction motors, the simulation result has great consistency, which has proven the effectiveness of simulation analysis. The paper further processes simulation and analysis focusing on the brushless DC motors with potential, and the analysis result can be used as the important reference for developing the new-type range hood with single brushless DC motor and double air inlets.
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