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A full floating car structure and rail vehicle

A carriage and floating construction technology, applied in the field of rail vehicles, can solve the problems of not meeting the noise comfort requirements in the car, increasing the noise in the car, etc.

Active Publication Date: 2021-08-13
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the rapid development of rail transit and the substantial increase in vehicle speed, the noise inside the car has also increased significantly. The original interior vibration damping installation in some areas will not meet the requirements for noise comfort in the car.

Method used

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  • A full floating car structure and rail vehicle
  • A full floating car structure and rail vehicle
  • A full floating car structure and rail vehicle

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Embodiment Construction

[0034] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] In this article, terms such as "upper, lower, left, right" are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may also change accordingly depending on the drawings. It is understood as an absolute limitation on the scope of protection; moreover, relative terms such as "first" and "second" are only used to distinguish one from another component with the same name, and do not necessarily require or No such actual relationship or order between these components is implied.

[0036] Please refer to figure 1 , figure 1 It is a perspective view of a fully floating car structure disclosed in an embodiment of the present invention.

[0037]As shown in the figure...

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Abstract

The invention discloses a full-floating car structure and a rail vehicle. The car structure includes a car body profile and an interior trim panel, and the interior trim panel includes an interior floor, a side wall trim panel and a roof trim panel. The interior floor, the side wall trim and the roof trim form the overall structure of the interior, and an interlayer is formed between the body profile and the overall interior structure, and the interlayer is filled with sound-absorbing and sound-insulating materials; The floor and the vehicle body profile are connected through a bottom floating mounting seat for vibration reduction, the side wall trim and the vehicle body profile are connected through a side floating mounting seat for vibration reduction, and the roof trim It is connected with the vehicle body profile through the first floating top mounting seat for vibration reduction, and the roof air duct above the roof trim is connected with the vehicle body profile through the second top floating mounting seat for vibration reduction. connect. The fully floating car structure connects the interior and the car body for vibration reduction, effectively blocks the sound bridge, controls the low- and medium-frequency noise in the car, and improves the noise comfort in the car.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a full-floating car structure of rail vehicles. The invention also relates to a rail vehicle provided with such a fully floating car. Background technique [0002] The interior noise of high-speed trains is mainly divided into airborne sound and structural sound. The connection structure between the car body and interior decoration is an important way for the transmission of structural sound. [0003] The rail vehicle compartment structure is divided into car body, interior decoration and its intermediate connection structure and sound-absorbing interlayer. The connection structure between the car body and interior decoration is an important way for noise transmission. If the rigid connection between the car body and interior panels , the attenuation is small in the process of noise and vibration transmission, and the excitation of the noise source outside the vehicle can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D17/04B61D17/18
CPCB61D17/043B61D17/185Y02T30/00
Inventor 郭建强朱雷威丁叁叁刘韶庆陈大伟孙召进刘宗财赵艳菊潘光亮
Owner CRRC QINGDAO SIFANG CO LTD
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