基于湿热模型的促动器防积水策略

Waterproof Strategy of Actuator Based on Wet and Thermal Model

为提高促动器在户外使用的可靠性,需要研究促动器防积水策略。根据促动器的结构和传热学原理,建立了促动器内气体的温湿度模型,实现了促动器内气体温湿度的模拟计算。通过对温湿度模型的模拟计算值与实验测量值进行对比,对温湿度模型验证,并在此基础上分析促动器内部积水的原因。根据促动器内温湿度的模拟计算结果,提出了用防水透气阀防止促动器内部积水的方案。

To improve the reliability of the actuator used outdoors, research on waterproof countermeasures of actuator. According to the actuator structure and heat transfer theory, established a model of temperature and humidi- ty inside the actuator gas to achieve an online calculation temperature and humidity of gas inside the actuator. By the comparison of the value and experimental measurement of temperature and humidity, to verify the simulation model and analyze the main reason of accumulated water inside the actuator. Proposed solution by installing waterproof breathable to solve the problem of accumulated water inside the actuator according to the calculation by the simulation model.