A door panel structure of a high-speed train sliding door

Abstract

The invention relates to a sliding plug door of a high-speed train, in particular to a door plate structure of a high-speed train sliding plug door. The door plate structure comprises a door plate and a door frame, wherein the door plate and the door frame are made of composite materials. Epoxy resin serves as matrixes of the composite materials, and carbon fiber of the grade T300 serves as reinforcement materials. The door plate comprises outer skin, reinforcing ribs and inner skin. The outer skin is formed at a time. The reinforcing ribs and a window frame are connected to the outer skin through glue. The reinforcing ribs are composed of transverse trusses and longitudinal trusses. The door frame surrounds the edge of the outer skin by a circle. A plurality of box type structures composed of the transverse trusses and the longitudinal trusses are arranged in the surrounding circle formed by the door frame. The box type structures are filled with sound insulation and thermal insulation materials. An adhesive layer is arranged between the inner skin and the reinforcing ribs. The inner skin and the reinforcing ribs are connected through rivets. A large number of advanced composite materials are adopted, and therefore the door plate structure has the advantages of being light in weight, high in corrosion resistance, good in thermal insulation effect, long in service life, capable of being installed without modifying existing train body structures and existing system, and the like.

Description

technical field [0001] The invention relates to a plug door of a high-speed train, in particular to a door panel structure of a plug door of a high-speed train. Background technique [0002] In recent years, with the development of trains towards high speed and modernization, higher requirements have been put forward for the doors, such as smooth and beautiful appearance of the car body when the doors are closed (it can reduce the air resistance and noise generated by the vehicle when it is running, and improve the indoor insulation. Acoustic and airtight to meet comfort requirements), etc. For this reason, high-performance sliding doors are highly valued by people. [0003] The outstanding feature of the sliding door is the sandwich structure and skeleton (profile) structure of the door panel, which has high specific stiffness and specific strength. However, due to the extensive use of metal structures, the structural weight is generally high (about 80kg on average). The...

AI Technical Summary

Problems solved by technology

However, due to the extensive use of metal structures, the structural weight is generally high (about 80kg on average)

The non-metallic structure of the door panel is made of heat insulating material, but due to the high thermal conductivity of the metal material, it is easy to cause local thermal bridge phenomenon, thereby reducing the heat insulation effect of the door panel

Because the local connection parts of the door panels are not easy to protect, corrosive liquids often invade the door body and cause the door panel to fail prematurely

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