中国塑料 ›› 2017, Vol. 31 ›› Issue (1): 105-109 .DOI: 10.19491/j.issn.1001-9278.2017.01.019

• 机械与模具 • 上一篇    

汽车仪表盘模外装饰加热机构设计

徐衡   

  1. 江西科技学院
  • 收稿日期:2016-07-13 修回日期:2016-10-27 出版日期:2017-01-26 发布日期:2017-01-26

Design of Heating System of Outside Mold Decoration of Automobile Dashboards

  • Received:2016-07-13 Revised:2016-10-27 Online:2017-01-26 Published:2017-01-26

摘要: 基于模外装饰工艺流程设计了主要由加热板、导轨副、滚珠丝杠副组成的汽车仪表盘的模外装饰加热机构,通过对导轨副和滚珠丝杠副工作载荷的计算,选定其型号。设计了加热机构的温度控制系统,分别计算其可控硅调节特性、石英加热器放大系数和石英灯时间常数,以此获得加热机构整体特性的传递函数。采用Matlab对该传递函数进行了仿真分析,基于Abaqus对薄膜加热过程同样进行了仿真分析。结果表明,设计的加热机构具有较高的稳定性;加热瓦正对薄膜的温度范围为393.4~398.5 K,加热温度较均匀,热量损失约为10.6 %。

关键词: 汽车仪表盘, 模外装饰, 加热机构, 温度控制系统, 仿真

Abstract: A heating system of automobile dashboards was designed on the basis of the technological procedure of outside mold decoration, which was mainly composed of heating plates, guide rails and ball screws. The model of heating system was determined by calculating the work load of guide rails and ball screws. A temperature control system was also designed, and the transfer function of overall characteristics of the heating system was obtained by calculating thyristor regulation characteristics, quartz heater amplification coefficient and quartz lamp time constant. The transfer function was also simulated by a Matlab software, and the analysis results indicated that the heating system had a high stability. The heating process for thin films was also simulated by an Abaqus software. The analysis results indicated that the temperature of the heating tile on film was in the range of 393.4~398.5 K, the heating temperature was uniformly only with about 10.6 % of heat loss.

Key words: automobile dashboard, outside mold decoration, heating mechanism, temperature control system, simulation