家电科技 ›› 2025, Vol. 0 ›› Issue (3): 118-122.doi: 10.19784/j.cnki.issn1672-0172.2025.03.021

• 论文 • 上一篇    下一篇

直流变频压缩机高温退磁失效模式的研究

伍时凯1, 黄执2, 程强1   

  1. 1.广东美芝制冷设备有限公司 广东佛山 528300;
    2.隆基乐叶光伏科技有限公司 陕西西安 710000
  • 发布日期:2025-08-19
  • 作者简介:伍时凯,硕士学位。研究方向：压缩机可靠性。地址：佛山市顺德区美的全球创新中心三栋南1。E-mail：wusk@chinagmcc.com。

Study on the failure of high temperature demagnetization of DC-INV compressor

WU Shikai1, HUANG Zhi2, CHENG Qiang1   

  1. 1. Guangdong Meizhi Compressor Limited Foshan 528300;
    2. Longi Solar Technology Co., Ltd. Xi’an 710000
  • Published:2025-08-19

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摘要： 在家用空调中,直流变频压缩机的用量越来越多。据近年1700台的故障压缩机的分解结果显示,有接近17%为退磁不良。而退磁不良中,有75%以上伴随着电机绝缘材料异常问题,业内称其为“高温退磁”。针对直流变频压缩机的高温退磁失效模式,通过永磁体高温退磁机理研究、压缩机失效品的数理分析、压缩机搭载制冷系统的实验研究、高温模拟推算以及空调系统退磁复现实验验证等手段,结合走访空调市场、压缩机现场分解的情况,最终确定导致直流变频压缩机高温退磁失效的主因,并提出了直流变频压缩机于家用空调市场的高温退磁防控措施。

关键词: 直流变频压缩机, 永磁体, 高温退磁

Abstract: In the field of household air conditioning, the number of DC-INV compressors has increased. The anatomic results of 1700 DC-INV compressors showed that 17% of them were bad demagnetization. In the case of demagnetization, 75% is accompanied by a deformation of the insulating material of the motor, which is called "high temperature demagnetization". In order to analyze the problem of "high temperature demagnetization", the phenomenon of demagnetization of high temperature demagnetization and failure of compressor is studied. Simulation, air conditioning experiments, market visits and anatomical results point to the main cause of "high temperature demagnetization". Finally, the author puts forward some measures to prevent the high temperature demagnetization of the DC-INV compressor.

Key words: DC-INV compressor, Permanent magnet, High temperature demagnetization

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