车用发电机传热分析及建模  

Thermal Analysis and Modeling of Automotive Claw-pole Alternators

作　　者：熊可嘉[1] 张万平[1] 

机构地区：[1]同济大学汽车学院,上海201804

出　　处：《机电一体化》2008年第9期60-62,67,共4页Mechatronics

摘　　要：针对车用爪形磁极发电机的传热问题进行研究,提出一个用于计算发电机各部件温度的模型。分析了发电机运行过程中存在的各种热源及其影响,讨论了各元件之间的传热路径和主要传热方式,并以此为基础绘制了相应的热网络图。运用该模型可以对发电机在车辆上的动态温度分布情况进行预测,减少因发电机选择或在发动机舱内位置布置不当而产生的过热问题,从而有效地缩短车辆开发周期。This paper investigates the thermal behavior of a claw-pole alternator on cars and develops a thermal model based on the nodal method for component temperature prediction. In this paper,main heat sources and their influences are discussed,heat transfer mechanisms between components are elucidated, and a resistance-capacitance network is presented. Using this model,the temperature profiles of the alternator can be estimated and the period for vehicle development might he reduced by the anticipation of deterioration resulting from overheating.

关 键 词：汽车 爪形磁极 传热 建模 

分 类 号：U463.631[机械工程—车辆工程] TK124[交通运输工程—载运工具运用工程]