Design and simulation study on the heating performance of mesh heating elements

To achieve uniform heating of heat-not-burn cigarettes, the ANSYS Workbench was used to verify the calculation rule of the resistance value of the mesh heating element. To provide a theoretical basis for improving the design of mesh heating elements, the effect of rounded corners on the resistance value and that of key parameters such as the number of mesh heat emitters in series and parallel, mesh density, and heating power on the heating uniformity were investigated. The deviation of all calculation results is less than 2.4%, indicating that the total resistance value of the mesh heating element conforms to the calculation rule of the series and parallel connections of single-module resistors. The heating power increases by 3.2%, which has a relatively small impact on the overall heating element when a rounded corner with a radius equal to the line width is added to the corner of the heating element. The area of the heating body increases when increasing the number of series connections and reducing the number of parallel connections, which is conducive to uniform heating. While maintaining the ratio of the number of series connections to the number of parallel connections constant, reducing the module size will not change the area of the mesh heating element, but it will improve the temperature uniformity. Under different power conditions, the heating uniformity of the same heating element does not change.