Study on the Influences of Idler Materials on Rolling Electrical Contact Performance

• DOI: 10.20944/preprints202409.2033.v1
• Publication Date: 2024-09-27T01:04:10Z
• Authors: Haihong Wu; Zhiyuan Qian; Chuankun Qu; Lei Zhang; Huiqun Liu; Xiao Kang
• Keywords: Electrical contacts

The parallel connection of multiple flexible rings in raceways can significantly improve the electrical conductivity rolling conductive devices. Multiple are generally separated by idlers to form ring-idler pairs. In present work, alumina (Al2O3), polytetrafluoroethylene (PTFE), polyether ether ketone (PEEK), and polyimide (PI) were used as idler materials. Rolling tests for four types contact pairs carried out air at a rotating speed 10 rpm current 60 A. It was noticed that voltage drop lowest when Al2O3 incorporated material. energy spectrum analysis indicated material transfer between organic ring. Especially on ring surface, transferred thin film covered gold-plated layer affected not obvious, mass fraction Au surface after test 93.1%. above results could help selecting best high-power rotary joints.