The utility model discloses a gentle-tone VPSA
oxygen generator, and belongs to the technical field of medical and household
oxygen generators. The gentle-tone VPSA
oxygen generator comprises a shell, a base, a console, a
molecular sieve tank group, a fan cabin, an
air compressor cabin, an air inlet silencing
assembly and an exhaust silencing
assembly. Wherein the shell is provided with an air inlet and a secondary filtering cabin. An outlet of the second-stage filtering cabin is connected with an air inlet silencing
assembly through an air inlet
pipe, and the air inlet silencing assembly is connected with an air inlet pipeline of the
air compressor. And the
air compressor is connected with the
molecular sieve tank group and the exhaust silencing assembly. In-cover sound insulation cotton is arranged in a cover shell of the air compressor cabin, and in-shell sound insulation cotton is arranged in an outer shell. The air inlet silencing assembly comprises a cover plate, an air inlet silencing shell and air inlet silencing cotton. An air guide
pipe is arranged on the cover plate, one side of the air guide
pipe is connected with the air inlet pipe, the other side of the air guide pipe extends into the air inlet silencing shell, and a
flanging is arranged at the end of an extending pipe section and provided with side holes in the circumferential direction. The
noise of the light-tone VPSA oxygen generator can be reduced to 30 decibels or below, and the experience feeling of a user can be improved.