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Static and dynamic characteristics of a novel moving magnet linear compressor

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Abstract

Linear compressors are popular in the field of household refrigeration due to their high efficiency and excellent capacity modulation capability. In this study, we proposed a novel moving magnet linear compressor and investigated its static and dynamic characteristics. Static performance included static shaft force, force constant, and magnetic spring, which were examined via finite element analysis and verified by conducting specific thrust experiments. For dynamic characteristics, resonance frequency, piston stroke, and piston offset were calculated by considering the magnetic spring effect. Compared with the results that didn’t consider the magnetic spring effect, higher accuracy was achieved under various conditions. In addition, piston offset increased with discharge pressure, but it was insensitive to changes in piston stroke. The motor efficiency of the designed linear compressor prototype can reach 0.92 under no-load condition and 0.80 under a discharge pressure of 0.6 MPa with a stroke of 9 mm under air condition.

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Acknowledgments

This work is supported by the Natural Science Foundation of China (No. 51874157), the Higher Education Innovative Talent Project (Science) of Liaoning Province (No. LR2019030), the Natural Science Foundation of Liaoning Province (No. 2019-MS-161), and the Basic Research Project of Liaoning Provincial Department of Education (No. LJ2020JCL026).

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Authors and Affiliations

  1. School of Mechanical Engineering, Liaoning Technical University, Fuxin, 123000, China

    Hongyue Chen, Zhangquan Lv, Xianyang Liu & Chen Chen

  2. School of Mechanical Engineering, Anyang Institute of Technology, Anyang, 455000, China

    Zhangquan Lv

Authors
  1. Hongyue Chen
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  2. Zhangquan Lv
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  3. Xianyang Liu
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  4. Chen Chen
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Corresponding author

Correspondence to Zhangquan Lv.

Additional information

Hongyue Chen is a Professor at Liaoning Technology University. His research interests include mechanical system structure design and control.

Zhangquan Lv is a Doctor of Mechanical Engineering at Liaoning Technology University. His research interests include linear compressors, automobile structure design, and optimization.

Xianyang Liu is a Doctor of Mechanical Engineering at Liaoning Technology University. His research interests include structure design and control of linear compressors.

Chen Chen is a Master of Mechanical Engineering from Liaoning Technology University. His research interests include the dynamic performance of linear compressors.

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Chen, H., Lv, Z., Liu, X. et al. Static and dynamic characteristics of a novel moving magnet linear compressor. J Mech Sci Technol 36, 87–97 (2022). https://doi.org/10.1007/s12206-021-1207-7

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  • DOI: https://doi.org/10.1007/s12206-021-1207-7

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