扬声器磁路系统有效磁导率的有限元计算及其影响因素分析  

The Effective Permeance Coefficient of Loudspeaker Magnet System FEA Calculation and Its Influencing Factors Analysis

作　　者：张洪进 ZHANG Hongjin(Premium Sound Solutions（Shenzhen）Co.Ltd,Shenzhen 518034,China)

机构地区：[1]普瑞姆扬声器系统(深圳)有限公司,广东深圳518034

出　　处：《电声技术》2018年第1期40-46,共7页Audio Engineering

摘　　要：本文介绍了扬声器磁路系统有效磁导率的计算方法,利用有限元软件分析了磁路系统有效磁导率的影响因素,结合实际案例说明了设计开发中如何优化提高磁路系统的退磁温度及如何正确选择永磁体的耐温等级。This paper introduces the calculation method of loudspeaker magnet system effective permeance coefficient,and analyzes its influence factors by finite element software,combine with actual design case to explain how to optimize and improve the demagnetization temperature of loudspeaker magnet system and how to choose the correct temperature class of magnet in design and development.

关 键 词：扬声器 磁路系统 有效磁导率 有限元 

分 类 号：TN643[电子电信—电路与系统]