微小型线性压缩机励磁线圈的分析与优化
收稿日期: 2024-03-22
录用日期: 2024-05-08
网络出版日期: 2024-06-04
基金资助
国家自然科学基金(52376081)
Analysis and optimization of the excitation coils in the miniature linear compressor
Received date: 2024-03-22
Accepted date: 2024-05-08
Online published: 2024-06-04
蒸汽压缩制冷能应对恶劣高温环境，使电子设备在更低的温度下运行，但需要解决微小型化和无油两个关键问题。基于有限元分析对线性压缩机励磁线圈进行数值模拟，优化线圈与外定子铁芯之间的结构以实现更紧凑的空间布局，从而进一步减小压缩机体积。同时开发了无骨架线圈以提高槽满率，使结构更紧凑，仿真对比表明该方案能有效提升电机的输出能力和效率。最终设计并制作了一款样机，其中直线电机的尺寸为外径61 mm、长度36 mm。实验测得电磁力系数为20.73 N·A-1，与仿真结果21.34 N·A-1非常接近，并在无油工况下进行了调压实验，在实现微小型化和无油的同时保证其性能。
杨旋 , 周豪杰 , 李骥 . 微小型线性压缩机励磁线圈的分析与优化[J]. 中国科学院大学学报, 2026 , 43(3) : 306 -315 . DOI: 10.7523/j.ucas.2024.043
Vapor compression refrigeration can operate electronic devices at lower temperatures even under harsh conditions， but it faces critical challenges in miniaturization and oil-free operation. This paper presents a detailed analysis and optimization of the excitation coils of the linear compressor using finite element analysis. The optimization allows the coil to be more compactly integrated with the outer stator core， further reducing the compressor's volume. A bobbinless coil was developed to increase the slot fill factor， resulting in a more compact structure. Simulation comparisons demonstrate effective enhancements in motor output capacity and efficiency. A prototype was constructed， featuring a linear motor with an outer diameter of 61 mm and a length of 36 mm. The measured electromagnetic force coefficient is 20.73 N·A-1， which is very close to the simulation result of 21.34 N·A-1. Voltage regulation experiments were also conducted under oil-free conditions， confirming that the device can maintain its performance while achieving miniaturization and oil-free operation.
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