Refrigerator capillary fixed knot constructs belongs to capillary fixation technology field, especially relates to a refrigerator capillary fixed knot constructs. The utility model provides a weld refrigerator capillary fixed knot constructs convenient, that can reduce the jet noise. The utility model discloses a capillary, connecting pipe and muffler, its structural feature capillary sets up in the connecting pipe, and the connecting pipe surface is provided with the anticorrosive coating, connecting pipe and muffler link to each other, and the contact site of connecting pipe and muffler be the cambered surface of laminating with the muffler, and the central angle of cambered surface is greater than 30 degrees, connecting pipe and muffler are the aluminum pipe, the capillary is the copper pipe, it has aluminum foil adhesive tape to wrap up in to cover outside muffler, the connecting pipe, the end portion of capillary exposes connecting pipe, the end of capillary are the flat enclosed construction, are provided with cyclic annular notch inside and outside the slant of the capillary of being convenient for to break in the end portion of capillary, the capillary expose the connecting pipe part go up apart from the slant inside and outside cyclic annular notch 16mm locate to set up cyclic annular spacing arch.