目的 研究冷板冷藏汽车各关键参数的确定方法，以及冷板布置情况对保冷效果的影响。方法 设计一种分体式冷板冷藏汽车，并确定车厢结构、充冷方式、冷板尺寸及制冷机组功率。利用有限体积法分析比较预冷阶段不同冷板布置形式对车厢内温度场的影响。结果 经过预冷30 min后，采用顶置加侧置冷板的方式时车厢中心位置温度为2.9 ℃，采用顶置冷板方式时车厢中心温度为10.1 ℃。结论 采用分体式充冷方式提高了整车质量的利用系数，且各参数确定方法及温度场分析方法可为冷板冷藏汽车的设计提供一定依据。

The work aims to study the method of determining the key parameters of cold plate refrigerated truck and the influence of cold plate layout on the cooling effect. A split cold plate refrigerated truck was designed. The structure of the carriage, the cooling mode, the size of the cold plate and the power of the refrigerating unit were determined. The finite volume method was used to analyze and compare the influence of different cold plate layouts at the pre-cooling state on the temperature field inside the carriage. After 30 min pre-cooling, the center position temperature of the carriage was 2.9 ℃ if the cold plate was placed at the top and side. The center temperature of the carriage was 10.1 ℃ if the cold plate was placed on the top. The quality utilization coefficient of the truck is improved by the split type cooling mode. The method of determining the parameters and the analysis method of temperature field can provide some basis for the design of cold plate refrigerated truck.