LOW VOLTAGE APPARATUS ›› 2025, Vol. 0 ›› Issue (7): 49-58.doi: 10.16628/j.cnki.2095-8188.2025.07.008
• Electrical Design & Discussion • Previous Articles Next Articles
LIU Wei1, ZHANG Yuqing1, YU Qingrui2, WANG Jun3, HUANG Wenhui1
Received:
2025-04-23
Online:
2025-07-30
Published:
2025-08-27
CLC Number:
LIU Wei, ZHANG Yuqing, YU Qingrui, WANG Jun, HUANG Wenhui. Design of a Contactless AC Contactor Based on STM32[J]. LOW VOLTAGE APPARATUS, 2025, 0(7): 49-58.
对比项 | 无触点接触器 | 传统机械接触器 | 优越性说明 |
---|---|---|---|
开关 速度 | 微秒级响应(基于半导体器件) | 毫秒级响应(机械触点动作延迟) | 高频开关场景下效率提升50%以上 |
寿命 | >100万次(无机械磨损) | 10~50万次(触点烧蚀、弹簧老化) | 维护成本降低80% |
噪声 | 完全静音(无机械动作) | 明显吸合声(≥60 dB) | 适用于医院、实验室等静音环境 |
电弧 风险 | 零电弧(固态开关) | 触点分断时易产生电弧 | 防爆、易燃环境安全性显著提升 |
能耗 | 待机功耗<1 W,仅驱动电路耗电 | 线圈功耗5~10 W,需持续通电保持 | 节能30%~70% |
环境适 应性 | -40~85 ℃稳定工作(全密封设计) | 0~55 ℃(触点易氧化、结露) | 极端工况可靠性更强 |
控制 精度 | PWM精准调节(电流/电压线性控制) | 仅通断功能(无法调节输出量) | 支持变频、软启动等高级功能 |
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