Research On The Novel Linear Oscillatory Motor With Two Separated Stators

Linear compressor is a trend of small compressors. Compared to traditional rotary compressors, the linear compressors could reach a higher efficiency, lower noise and bigger COP value. The permanent magnet linear compressors with high efficiencies and excellent motion characterics are the most important study areas for linear compressors. Linear oscillatory motors are one of key parts of linear compressors. Good linear compressors are always simple, easy manufactures, easy fabrications, good force characteristics and high force densities, etc. Based on the available experiment situations and in-depth study on the LG's linearoscillatory motor, a novel linear oscillatory motor with two seperated stators are present. The main study works include:1. In-depth analysis of LG's linear oscillatory motor. A linear mathmatical model of LG's linear motor is established. A 2D Finite Element Method model of the motor is also made to calculate the flux distributions under noload and full-load conditions.2. Based on the study of LG's linear oscillatory motor, the novel linear oscillatory motor with two seperated stators is present. The working principle, the manufacturing steps and methods are all discussed.3. According to the Reluctance Network Mehod, the linear mathmatical model of the novel linear oscillatory motor is concluded and is in accordance with the analysis results of FEM and experiment ones.4. Studies on diffent loads are carried out. The vector analysis methods are adopted in the analysis to calculate the static parameters. The influences of high harmonics are also disscussed and the calculated results are in accordance with the simulation results. 5. A prototype was made. The experiments under no-load and full-load conditions were carried out. The experiment data could help further study on the novel linear oscillatory motor with two seperated stators.Now, the novel linear oscillatory motor with two separated stators is pending for invention patent. The motor is used to compress the air and may reach 0.5 MPa with 26 Hz oscillatory frequence. The power factor could be above 85%.