The heat generated by the continuous high temperature working environment is the main factor leading to the failure of the electronic components of the rescue robot in fire rescue.Therefore,it is necessary to design a reasonable thermal protection structure for the internal electronic components of the rescue robot.The phase change capsule composite structure,thermal barrier-thermal insulation double layer structure and glass wool capsule composite structure models are established in this paper by using COMSOL Multiphysics software,and the thermal protection performance of the three structures is compared by numerical simulation method.The results show that compared to the latter two kinds of thermal protection structures,the composite structure of phase change capsule has better thermal protection performance.In order to explore the influence of the content of phase change material and stacking mode on thermal protection effect further,the single-layer stacking structure,double-layer stacking structure and the mixed stacking structure of large and small capsules are designed by changing the size and stacking mode of phase change capsules.The results show that the average temperature rise of the inner wall of the single-layer structure with large size phase change capsules is reduced by 41.8%and 29%respectively,compared with the double-layer stacking structure and the mixed stacking structure during the whole heating period.It shows better thermal protection effect.
Rescue robotThermal protectionPhase change capsuleNumerical study
万方数据
维普
