目的 从科学哲学的范式观点来观察产品设计行为的演化轨迹，通过案例分析范式破与立转化关键期的产品特征，探究其演化的逻辑与内生因素。方法 选取具有快速迭代并被广泛接受的行业产品设计作为案例，分析其强代表性的产品设计基本特征，利用新旧设计相互对比的分析方法，对行业范式转换期间产品迭代前后的设计行为进行分析，探究其内部各因素的相互关系。结论 设计行为中范式的转化具有内生结构动力，这种内生结构动力表现出推动式的层级关系，首先基于高维度叙事框架下的功能述求，继而推动产品行为述求与内容述求的循环，最终表现为产品的外观特征。通过对演化内生因素的分析建构产品设计行为菱形逻辑架构，为以后的产品设计行为提供参考或启示。

Through case study, the product characteristics in the critical period of paradigm breaking and transformation are analyzed, to investigate the evolution logic and endogenous factors of product design behavior from the viewpoint of philosophy of science. Select the product design industry with fast iteration and wide acceptance as a case, analyze its strong representative basic characteristics of product design, use the analysis method of comparing old and new design behaviors, analyze the design behavior before and after iteration during the industry paradigm transformation, and explore the relationship between the internal factors. The transformation of paradigm in design behavior has endogenous power, which shows a driving hierarchical relationship. First, it is triggered by the functional description under the high-latitude narrative framework, then it promotes the cycle of product behavior description and content description, and finally it is manifested as the product appearance characteristics. constructing a diamond-shaped logical structure of product design behavior, and providing reference for future product design behavior.