Water purification and sterilization module

The utility model discloses a water purifying and sterilizing module. The module comprises a water inlet assembly and a water outlet assembly which are hermetically communicated; a water inlet (1) is formed in the top of the water inlet assembly, a heat exchanger (2) is arranged on the portion inserted into the water outlet assembly, a water return port (5) is formed in the bottom of the heat exchanger, and the radiation source (3) is located in an interlayer (4) on the periphery of the heat exchanger. The top of the water outlet component is an opening for the water inlet component to insert, an overflow chamber (6) is arranged in the component, an overflow channel (7) is arranged around the overflow chamber, and the top of the overflow channel is slightly higher than the radiation source and is communicated with a water outlet (8) at the bottom. According to the module, on the basis of the synergistic effect of all the components, synchronous heating and sterilization of cold water are achieved through radi