▎ 摘　　要

NOVELTY - The method involves stopping a compressor when the compressor is shut down. A front cooling medium is stopped when the compressor is shut down. A high speed cooling medium is passed through a buffer at a pipeline bending pipe of an air conditioner outer machine pipeline. A part of the high speed cooling medium extrudes the buffer. Sealing deformation of the buffer is determined. Pressure relief is generated by the cooling medium for stopping movement of the high speed cooling medium before reducing impact. Stress generated by the bending pipe is reduced. The sealing encapsulation is formed by pressing a composite film and an inner lining film with a high temperature and high pressure resistant film material. The composite film is composed of crosslinkable polyarylene ether nitrile and cyano-functionalized graphene. The lining film is a polypropylene film. USE - Method for slowing down vibration stress of a pipeline in indoor hanging air conditioner (claimed). ADVANTAGE - The structure can effectively reduce stress strain when the air conditioner works in high load condition and reach 95% stress absorption. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a buffer; (2) a bent pipe structure; and (3) an indoor hanging air conditioner equipped with the elbow structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the buffer.