Yan Zhi'an£¬Gao Xiaoyun£¬Yi Pinghu£¬Hong Weihua
(School of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049,China)
Abstract:A novel permanent-magnet linear motor for linear compressor is developed.The resonance performance characteristics of the linear compressor and the structure characteristic of the linear motor on moving coil type are investigated, and a set of assistant irons are mounted to decrease markedly the magnetic flux leakage,then the flux lines distribute rationally and the air-gap magnet field remains equably. The formula of motor power and efficiency is established under the resonance state.The principle of finite-element and the theory of magnetic field of motor with Ansoft Maxwell software platform are adopted to reduce the design cost and heighten the efficiency.The characteristic calculation confirms the feasibility and accuracy£®
Keywords:linear compressor; linear motor; magnetic field analysis