Railway vehicle and inner end door thereof
A technology for rail vehicles and end doors, applied in the field of rail vehicles, can solve the problems of affecting the comfort of passengers, inability to absorb and cut off noise, and increase the noise of carriages.
Pending Publication Date: 2021-09-10
CRRC TANGSHAN CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The carriages of the high-speed rail EMU are all equipped with inner end doors, and the ventilation structure between the carriages is realized through the ventilation structure at the bottom of the inner end doors to ensure the temperature balance of adjacent carriages. At the same time of circulation, the structural openings cause the noise outside the inner end door to spread to the interior of the compartment, which increases the noise inside the compartment and affects the comfort of the passengers
Therefore, the existing ventilation structure of the inner end door can only ensure the air circulation between the compartments, and cannot effectively absorb and isolate noise
Method used
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[0054] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0055] The embodiment of the present application provides a rail vehicle and its inner end door. The rail vehicle includes a carriage 1 and an inner end door 2 installed at the end of the carriage 1 . exist figure 1 1 simply shows a compartment 1 for rail vehicles, and an inner end door 2 is arranged on the end wall of the compartment 1 , through which the interior and exterior of the compartment 1 can be connecte...
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Abstract
The embodiment of the invention relates to the technical field of railway vehicles, in particular to a railway vehicle and an inner end door thereof. The inner end door comprises a door plate and further comprises a phononic crystal type ventilation structure fixedly installed on the door plate. The phononic crystal type ventilation structure is provided with ventilation holes and a noise reduction cavity. The noise reduction cavity is communicated with the ventilation holes and used for achieving sound insulation of the ventilation holes. The inner end door has the advantage of being good in sound insulation performance while guaranteeing the ventilation effect between carriages.
Description
technical field [0001] The present application relates to the technical field of rail vehicles, in particular, to a rail vehicle and its inner end door. Background technique [0002] With the development of my country's high-speed trains in the direction of high speed and high comfort, higher requirements are put forward for the interior noise of high-speed trains during operation. The noise inside the carriages of high-speed rail EMUs has become a serious problem affecting comfort. The carriages of the high-speed rail EMU are all equipped with inner end doors, and the ventilation structure between the carriages is realized through the ventilation structure at the bottom of the inner end doors to ensure the temperature balance of adjacent carriages. At the same time of circulation, the structural openings cause the noise outside the inner end door to spread to the interior of the compartment, which increases the noise inside the compartment and affects the comfort of the pa...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B61D17/06B61D19/02B61D27/00
CPCB61D17/06B61D19/02B61D27/009
Inventor 贾尚帅韩铁礼孟林林赵新利赵蔷薇任晓飞
Owner CRRC TANGSHAN CO LTD