快餐文化的发展导致了小型封口机的应用普及。以奶茶封口机为例，对其加热板进行了尺寸改动，并运用ANSYS-Workbench中的多物理场耦合分析（主要为温度-电场耦合分析）以及参数化设计，对改动后的加热板进行了理论分析，为验证改动是否正确提供依据。

Small cappers are more popular because of the development of fast food culture. Milk tea capper was taken as an example, on which the dimension of heating plate was modified. Multi-physical coupling analysis and parametric design was carried out using ANSYS Workbench. The theoretical analysis was carried out on the modified heating plate to verify the correctness of the modification.