Powder heating assembly and heating module of rapid prototyping apparatus

A powder heating assembly of a rapid prototyping apparatus, the powder heating assembly comprising:

• a powder feeder comprising an accommodation space and a powder falling port in communication with the accommodation space, wherein a construction powder is accommodated within the accommodation space;
• a heating module disposed under the powder feeder, and comprising a thermally conductive cap and a heat conduction structure, wherein the powder falling port is capped by the thermally conductive cap, the thermally conductive cap comprises a powder exhaust port, and the powder exhaust port is in communication with the powder falling port, wherein the heat conduction structure is arranged between the accommodation space of the powder feeder and the thermally conductive cap and comprises a heater, wherein the heat generated by the heater is transferred to the construction powder within the powder feeder through the heat conduction structure and the thermally conductive cap to preheat the construction powder accommodated within a bottom of the accommodation space, remove the moisture contained in the construction powder and dry the construction powder, wherein after the dried construction powder is ejected out of the powder exhaust port, a powder spreading process is performed.