Moisture-resistant explosion-proof pressure release valve and assembly process thereof

The invention provides a moisture-proof explosion-proof pressure relief valve which is suitable for a battery pack and comprises a shell, an explosion-proof pressure relief structure and a moisture-proof pressure relief structure. The shell is provided with a containing cavity in a penetrating mode. The anti-explosion pressure relief structure is installed in the containing cavity at one end of the shell. The moisture-proof pressure-relief structure comprises a guide assembly and a moisture-proof pressure-relief assembly, and the guide assembly is elastically installed in the containing cavity at the other end of the shell and connected to the anti-explosion pressure-relief structure. The guiding assembly is in linkage with the anti-explosion pressure relief structure, and the guiding assembly is stressed to drive the anti-explosion pressure relief structure to be separated from the shell in the axial direction so that air can be exhausted and pressure can be relieved. The guide assembly comprises a guide rod