Characteristics of a novel cylindrical arm spiral spring for linear compressor
Characteristics of a novel cylindrical arm spiral spring for linear compressor
复制标题
一种新型直线压缩机圆柱臂螺旋弹簧的特点
DOI：
10.1016/j.ijrefrig.2021.07.006
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发表时间：
2021
影响因子：
3.9
通讯作者：
Li Pengfei
中科院分区：
文献类型：
--
作者：
Chen Hongyue;Lv Zhangquan;Yang Xinwei;Liu Xianyang;Li Pengfei
弹簧系统是直线压缩机的关键部件，以其高效、紧凑的结构在家用制冷领域备受关注。在传统柔性弹簧的基础上，综合考虑成本、紧凑性和性能要求，提出了一种新型的直线压缩机圆柱臂螺旋弹簧。介绍了弹簧的设计方法，通过调整弹簧的内、外半径、匝数和钢丝直径，可以获得不同的性能。采用有限元分析方法，建立了弹簧在不同轴向力和径向力作用下的静态位移模型。为了验证有限元分析的结果，设计了一种专用夹具对弹簧刚度进行测量。最后，对装有该弹簧的直线压缩机进行了动态试验。实验结果表明，在不加气体压缩机的情况下，直线压缩机的共振频率可以达到78 Hz的设计要求，说明该类型弹簧在直线压缩机上的应用是可行的。
The spring system is the key component of linear compressor, which is attractive in the field of household refrigeration due to its high efficiency and compact structure. Inspired by the traditional flexure spring, we proposed a novel cylindrical arm spiral spring for linear compressor with a comprehensive consideration on the cost, compactness and performance requirements. The design method of spring was introduced and different performance can be obtained by adjusting the internal radius, external radius, number of turns and wire diameter. The static displacement of spring was modelled by using FEA (Finite Element Analysis) method for various axial and radial force. And a specific fixture was built to measure the spring stiffness to verify the results obtained from FEA simulation. At last, the dynamic test of the linear compressor equipped with the proposed spring was conducted. The experimental results showed that the resonant frequency of linear compressor can meet the design requirements of 78 Hz without gas compressor, indicating that the application of this type of spring in the linear compressor is feasible.