Novel light coupling and packaging structure of optical receiving assembly of optical module

The utility model provides a novel optical coupling and packaging structure of an optical receiving assembly of an optical module, and belongs to the technical field of optical communication. The structure comprises an optical module and a coupling assembly, the optical module comprises a PCBA board, the top surface of the PCBA board is provided with a DSP chip and a light emitting assembly, the coupling assembly is also arranged at the top of the PCBA board, the coupling assembly comprises a shell and a receiving optical fiber adapter, the shell is of a hollow structure, the bottom of the shell is of an open structure, the bottom of the shell is attached to the top surface of the PCBA board, and the receiving optical fiber adapter is arranged on the top surface of the PCBA board. A light demultiplexer, a lens array group and a reflecting mirror are arranged in the shell, the lens array group is passively attached to the inner wall of the shell, the light demultiplexer and the reflecting mirror are clamped an