电磁继电器优化设计

发布时间：2018-07-25 06:06

【摘要】：气候变化与化石燃料等问题使得节能环保变得越来越重要,长期工作不消耗功率的磁保持继电器逐渐成为主流产品。如何研制出低功耗、工作可靠和低成本的磁保持继电器是当前的热点问题。本文通过对现有磁保持继电器的电磁结构进行对比分析,提出了新的磁路结构方案,实现了体积小、灵敏度高、结构简单、成本低的新型磁保持继电器。本文首先对典型的串联式、并联式、桥式磁路结构进行理论分析,通过Ansoft Maxwell软件对各种磁路结构进行三维电磁场仿真分析,得出各个结构的优缺点；针对串联式磁路灵敏度不高的缺点,设计薄型永磁体来减小磁路磁阻,并用轭铁对永磁体进行一定的磁短路作用来降低释放位置的永磁体作用力；同时利用“L”形衔铁的两段结构实现了类似并联式磁路的结构,使衔铁能稳定工作。其次,本文对继电器的吸反力配合情况展开分析,通过ANSYS workbench软件的三维静力学仿真模块对继电器的机械反力系统进行了分析,确认继电器的吸反力匹配情况。此外,本文还研究了继电器各种工作状态下的发热,通过ANSYS workbench软件对继电器的温度场进行仿真分析,确保继电器的温升满足设计要求,以保证继电器工作的可靠性。通过理论分析和仿真计算,并充分考虑制造工艺性,研发了HF163F-L小型功率磁保持继电器。实测产品的吸反力曲线与仿真结果进行对比,虽然存在一定的误差,但是变化规律和趋势是相同的,实际产品动作和复归满足设计要求,验证了仿真计算对产品设计的参考价值。此外,还对比了产品实测温升和仿真结果的误差,通过误差分析修正了仿真模型,修正后的仿真结果接近实测值。对HF163F-L产品进行了多个批次的试制,并按照国际标准进行了各项验证试验,试验结果表明产品的性能达到了国外同类产品的水平。该产品具有体积小、功耗低、负载能力强、结构简单可实现自动化生产等优点,可以广泛应用在智能家居控制等领域,市场前景良好、
[Abstract]:Problems such as climate change and fossil fuels make energy conservation and environmental protection more and more important. Magnetic retention relays, which do not consume power for a long time, have gradually become the mainstream products. How to develop low-power, reliable and low-cost magnetic relay is a hot issue. Based on the comparison and analysis of the electromagnetic structure of the existing magnetic holding relay, a new magnetic circuit structure scheme is proposed, which realizes a new type magnetic holding relay with small volume, high sensitivity, simple structure and low cost. In this paper, the typical series type, parallel type, bridge type magnetic circuit structure is analyzed theoretically, and the advantages and disadvantages of each structure are obtained through the three-dimensional electromagnetic field simulation analysis of various magnetic circuit structures by Ansoft Maxwell software. The thin permanent magnet is designed to reduce the magnetoresistance of the magnetic circuit, and the magnetic short-circuit action of the yoke iron is used to reduce the force of the permanent magnet in the releasing position. At the same time, the structure of parallel magnetic circuit is realized by using the two-section structure of "L" armature, which makes the armature work stably. Secondly, this paper analyzes the coordination of the suction reaction force of the relay, through the three-dimensional static simulation module of ANSYS workbench software, the mechanical reaction system of the relay is analyzed, and the match of the suction reaction force of the relay is confirmed. In addition, this paper also studies the heat of relay in various working states, and simulates and analyzes the temperature field of relay by ANSYS workbench software to ensure that the temperature rise of relay meets the design requirements, so as to ensure the reliability of relay work. Based on theoretical analysis and simulation, and considering the manufacturing process, a HF163F-L small power magnetic retention relay is developed. Compared with the simulation results, although there are some errors, the law and trend of change are the same, and the actual product movement and return meet the design requirements. The reference value of simulation calculation to product design is verified. In addition, the error between the measured temperature rise and the simulation results is compared. The simulation model is modified by error analysis, and the modified simulation results are close to the measured values. Several batches of HF163F-L products were trial-produced, and various verification tests were carried out according to international standards. The results showed that the performance of the products reached the level of similar products abroad. The product has the advantages of small size, low power consumption, strong load capacity, simple structure and can realize automatic production. It can be widely used in the field of intelligent home control and has a good market prospect.
【学位授予单位】：福州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM581.3

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