High-speed EMU skeleton thermal insulation device

Abstract

The invention relates to a framework heat insulating device for a high speed MU train. The framework heat insulating device comprises a train inner framework and a train outer framework. A heat insulation connecting base and a heat insulation cover for insulating a heat bridge are arranged between the train inner framework and the train outer framework, and the heat insulation connecting base and the heat insulation cover are connected with the train inner framework and the train outer framework through fasteners. The framework heat insulating device for the high speed MU train is simple and novel in structure, material performance can meet requirements, and the heat bridge is completely insulated by matching the heat insulation connecting base with the heat insulation cover, so that temperature of the train inner framework and the temperature in the train are always consistent, wet and hot air in the train cannot form condensate water on the surface of the train inner framework, threat of the condensate water to electrical equipment of switchboards and the like is eliminated, a great potential safety hazard of vehicle operation safety is eliminated, and safety of devices on the vehicle train inner framework is ensured.

Description

technical field [0001] The invention relates to a frame heat insulation device for high-speed EMUs, belonging to the technical field of rail vehicle manufacturing. Background technique [0002] The aluminum alloy switchboard is one of the important equipment of the high-speed EMU. The inner frame of the fixed switchboard is directly welded to the car body frame outside the car body. In the high-speed EMU running across multiple latitudes, especially in winter, The temperature difference between the inside and outside of the car will reach 30°C, and a thermal bridge will be formed at the connection between the car frame and the car body frame. When the warm air in the car meets the heat bridge, condensation will form, which will often cause condensation in the car frame. , Condensed water is easy to drip onto the live equipment, forming a potential hazard to the electrical equipment in the car, and then endangering driving safety. Contents of the invention [0003] The mai...

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Problems solved by technology

[0002] The aluminum alloy switchboard is one of the important equipment of the high-speed EMU. The inner frame of the fixed switchboard is directly welded to the car body frame outside the car body. In the high-speed EMU running across multiple latitudes, especially in winter, The temperature difference between the inside and outside of the car will reach 30°C, and a thermal bridge will be formed at the connection between the car frame and the car body frame. When the warm air in the car meets the heat bridge, condensed water will be formed, making the car frame often condense. , the condensed water is easy to drip onto the live equipment, forming a potential hazard to the electrical equipment in the car, thereby endangering driving safety

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