摘要:随着科技的发展,感应加热技术作为一种新型清洁、高效的加热能源,越来越多地应用于人们的生产生活当中。感应加热具有加热速度快、热效率高、适用于局部加热、产品质量好、无环境污染、易于实现生产自动化等优点,其功率密度在被加热工件内的分布可方便地通过频率的选择和感应圈的合理设计而得到。目前,感应加热技术已广泛应用于金属熔炼、铸造、焊接、热处理、热锻造等热加工工艺.对于小型工件的表面热处理或超小型小工件的加工和焊接,则要求功率更加集中、输出频率更高,但是频率提高受到器件自身开关速度和技术工艺的限制。6509
本论文分析了感应加热电源的原理,并了解了感应加热电源的现状。通过两部分来进行了感应加热电源的设计。第一部分是通过理论来设计感应加热电源的线圈和水冷却装置。第二部分是选择用全桥IGBT模块作为逆变电路,建立了IGBT驱动电路。最后对本次设计进行了归纳。
关键词:感应加热电源;水冷却;逆变电路
The design of small power induction heating power supply
Abstract:With the development of technology, induction heating technology as a new type of clean, efficient heat energy, more and more used in the production and living among the people. Induction heating with heating speed, high thermal efficiency, suitable for local heating, product quality, no pollution, easy-to-production automation, etc., the power density in the work piece is heated and its distribution can be easily by frequency selection and induction loop be. At present, the induction heating technology has been widely used in metal melting, casting, welding, heat treatment, hot forging and other hot working processes. for small work piece surface heat or ultra-small small parts machining and welding, require more concentrated power, the output frequency is more High, but the frequency increases switching speed by the device itself and the technical process of the limit.
This paper analyzes the principle of induction heating power supply, and understand the status of the induction heating power supply. Through the two parts to design of induction heating power supply. The first part is the design of coil to induction heating power supply and water cooling unit through theory.The second part is choose full-bridge IGBT module as an inverter circuit. Build a IGBT drive circuit as the frequency. Finally, summarizes the design.
KeyWords:Induction heating ;Water cooling unit ;Inverse circuit
目 录
1 绪论 1
1.1 高频加热的两种方式 1
1.2 感应加热电源的工作原理 2
1.3 感应加热的三大效应 3
1.4 国外感应加热电源的现状 4
1.5 国内感应加热电源的现状 5
1.6 感应加热电源的优点 5
1.7 感应加热电源的发展趋势 6
1.8 感应加热电源的研究意义 7
1.9 课题主要研究内容及任务 7
1.10 本课题的方案论证 8
2 感应器的设计计算 9
2.1 感应加热电源设计的原始数据 9
2.2 感应加热时间的确定 9
2.3 毛坯加热所需的功率 12
2.4 磁场强度H0的计算 12
2.5 磁通量 的计算 13
2.6 感应线圈匝数的确定 15
2.7 感应线圈上电流大小的计算 16
2.8 线圈导体截面积的计算 16
2.9 线圈功率损失的计算 17
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