【作者】 韩逸冰；

【导师】 刘平；

【作者基本信息】 郑州大学 ， 电子与通信工程（专业学位）， 2013， 硕士

【摘要】 随着感应加热技术的普及,用于感应加热的工件的形状也越来越多,由于工件一般是要放进感应器内部进行加热的,所以我们要根据不同截面的工件设计适合其加热使用的感应器。通常用于感应加热的感应器可以被制做成螺旋形感应器、缝状感应器、扁圆形感应器、异形感应器、有磁导体的感应器等。由于目前用于感应加热设备的感应器还没有完善的理论设计方法,传统方法通常采用“经验法”或者利用现有的计算公式,由于传统的制作方法存在较大的误差,将会导致被加热工件达不到预期的加热效果,那么感应器就不得不重新制作,从而造成了人力和财力的浪费。针对上述感应器目前制作方法存在的弊端,本论文本着低成本、高效率、安全可靠的指导思想,以理论和实验相结合的研究方法,通过电感的实验测量值来修正理论计算值,以此提高感应器的加热效率。论文的主要内容包括：首先,通过建立感应器(螺旋形)与被加热工件之间的数学模型,推导出一般感应器阻抗的计算公式,并结合实验测量结果分析出了影响感应器电感值的各种因素。其次,利用“螺旋形线圈元”的辅助设计法推导出了单层螺旋形线圈元“部分电感值”与“整体电感值”的一般关系式,以及不同材质(磁性和非磁性材料)的工件对“部分”与“整体”关系的影响。最后,根据感应电动势的原理,通过增加感应线圈元的数量进一步得到了n个有限长多层螺线圈元串联顺接电感的计算公式。将多个尺寸的螺旋形线圈元的同名端相接时,由于电流流入的方向一致,产生的磁场的方向相同,且电感量远远大于单层线圈的电感量。因此可以利用已有的线圈元进行多层的串联顺接来组合成我们所需的电感值。更多还原

【Abstract】 With the popularity of induction heating technology, more and more kinds of shape of the induction heating of the workpiece have been invented. As the workpiece is generally used in the interior of the inductor for heating, it has to be adapted to the different sectional rough design for heating inductor. Typically, the shape for the induction heating of the inductor can be made into spiral-shaped inductor, Slit-like inductor, Slit-like inductor, Shaped inductor, inductor with a magnetic conductor, etc. While, it is difficult for us to find a selected theoretical calculation method to design the inductor of induction heating, and the traditional methods usually relies on "experience" or use of existing formulas, because the traditional method of making larger error, its will cause the workpiece is heated not achieve the desired heating effect, then it is a waste of human and financial resources. To avoid the drawbacks of it, this paper line with low cost, high efficiency, safety and reliability of the guiding ideology, the combination of theoretical and experimental research methods,using the experimentally measured inductance value to correct theoretical value, in order to improve the heating efficiency of the inductor. The main contents of this paper include:First, through the establishment of the mathematical model of the induction heating inductors (spiral) and the workpiece, deriving a general inductor inductance formula, and combine the results of experimental measurements to analyze a variety of factors affect the inductance values of the sensor. Then, using the Spiral-shaped coil element experimental verification of the general relationship of the monolayer helical coil element" section inductor value "and the" overall inductance value, as well as the impact of workpieces of different materials (magnetic and non-magnetic material) on the relationship between "part" and "whole". Finally, based on the principles of the induced electromotive force, increase the number of induction coil element in order to get n finite-length multi-layer solenoid coil inductance element in series, linking and reverse the formula. Putting some different sizes spiral coil element of the same name connection, as the current flows in a direction consistent, so the magnetic field generated has the same direction and the new inductance greater than the single-layer coil inductance. Thus, we can utilize the multi-layer spiral coil elements in series to combining in order to get the required inductance value.更多还原