CN216709290U

CN216709290U - Rail vehicle cuts off

Info

Publication number: CN216709290U
Application number: CN202220005962.6U
Authority: CN
Inventors: 谢红兵; 李�杰; 王永; 崔子燚; 于建顺
Original assignee: CRRC Zhuzhou Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-06-10
Anticipated expiration: 2032-01-04

Abstract

The utility model provides a railway vehicle partition. The rail vehicle partition comprises a cabinet body and at least one access door arranged on the cabinet body, wherein one side of the cabinet body is an inner side A, the other side of the cabinet body is an outer side B, and the access door is arranged on the cabinet body and can be opened towards the outer side B; the cabinet body and the access door are sandwich plates, the outer layer of each sandwich plate is an aluminum plate skin, and the inner sandwich is an aluminum honeycomb core plate; the cabinet body and access door have set gradually steel sheet covering and fireproof material layer to inboard A by outside B, steel sheet covering and the laminating of aluminum plate covering. Compared with the prior art, the railway vehicle partition provided by the utility model has the functions of fire prevention, electromagnetic shielding and noise reduction.

Description

Rail vehicle cuts off

Technical Field

The utility model relates to the technical field of railway vehicles, in particular to a railway vehicle partition.

Background

Due to the fact that space outside the motor train unit is limited, high-power equipment such as a transformer, a converter and a storage battery is generally installed in the motor train unit, and therefore the problems of noise inside the motor train unit, fire safety, electromagnetic compatibility, heat dissipation of electrical equipment and the like can be caused. In order to reduce noise and protect passengers from fire, the high-power electrical cabinet needs to be made as airtight as possible, but the high-power equipment needs to be ventilated and radiated, so that the two contradict each other.

There is also a noise-reducing fire-proof partition wall for railway vehicles, which uses a partition to separate high-power equipment, as disclosed in the prior patent publication No. CN208715196U, and the technical scheme is as follows: the surface all closely laminates there is the flexible layer about the wall body main part, and two flexible layer inside fixedly connected with silica gel bed course, and two flexible layer below closely laminate have the flame retardant coating, and two flame retardant coating bottoms closely laminate have the layer of making an uproar of falling, and two layer bottoms of making an uproar of falling closely laminate have the stress layer, the inside fixedly connected with splice bar of stress layer. But only rely on the noise reduction layer to realize giving sound insulation, the effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a railway vehicle partition which can effectively reduce noise in a vehicle.

The technical scheme of the utility model is as follows: a rail vehicle partition comprises a cabinet body and at least one access door arranged on the cabinet body, wherein one side of the cabinet body is an inner side A, the other side of the cabinet body is an outer side B, and the access door is arranged on the cabinet body and can be opened towards the outer side B; the cabinet body and the access door are sandwich plates, the outer layer of each sandwich plate is an aluminum plate skin, and the inner sandwich is an aluminum honeycomb core plate; the cabinet body and access door have set gradually steel sheet covering and fireproof material layer to inboard A by outside B, steel sheet covering and the laminating of aluminum plate covering.

Among the above-mentioned scheme, be the battenboard through the major structure design with the cabinet body and access door to add the steel sheet on the battenboard, can increase the sound insulation effect, effectively fall and make an uproar, and play the fire prevention effect through the fireproof material layer.

Preferably, the fireproof material layer is ceramic fiber cotton or a fireproof coating layer.

Preferably, the steel plate skin is silicon steel or carbon steel.

Preferably, the rail vehicle partition further comprises a sound insulation felt attached to the layer of fire-retardant material.

Preferably, the rail vehicle partition further comprises a silencing air duct; at least one access door is provided with a ventilation grating; the silencing air duct is installed on the inner side of at least one access door and covers the ventilation grille.

Preferably, the silencing air duct comprises an outer frame and an inner frame, the outer frame is mounted on the access door, and an m-shaped air duct is arranged in the outer frame; the U-shaped air channel is arranged on the inner frame and arranged in the m-shaped air channel, and the inner frame is connected with the access door through the outer frame.

Preferably, the m-shaped air duct has four corners, and the four corners are all arc chamfers.

Preferably, sound-absorbing cotton is arranged in the m-shaped air channel and the u-shaped air channel.

Preferably, the lap joint of the access door and the cabinet body is provided with a fireproof expansion rubber strip.

Compared with the related technology, the utility model has the beneficial effects that:

the partition can be arranged on a rail vehicle or other vehicles, adopts an aluminum honeycomb structure, is pasted with a steel sheet and a fireproof material on the inner side, and has the functions of fire prevention, electromagnetic shielding and noise reduction;

the access door is provided with a ventilation grating, the ventilation grating is covered with a silencing air duct, and the silencing air duct is of a labyrinth structure, so that ventilation and heat dissipation in the cabinet and outside are guaranteed, noise can be attenuated, and flame can be prevented from spreading to a passenger area or a driver area outside the cabinet when electrical equipment catches fire accidentally;

and thirdly, the ventilation grating arranged is covered by the silencing air duct, so that the ventilation grating can meet the requirement of a fireproof partition by adopting a common format, the cost is reduced, and the implementation is easy.

Drawings

FIG. 1 is a schematic structural view of one direction of a railway vehicle partition provided by the present invention;

FIG. 2 is a schematic structural view of another direction of the railway vehicle partition provided by the present invention;

FIG. 3 is a structural schematic diagram of a cross section of the cabinet and access door;

fig. 4 is a schematic structural diagram of a silencing duct.

In the drawings: 1. a cabinet body; 2. an access door; 3. a ventilation grille; 4. a silencing air duct; 5. covering an aluminum plate; 6. an aluminum honeycomb core panel; 7. covering a steel plate with skin; 8. a layer of fire-retardant material; 41. an outer frame; 42. an inner frame.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1 and fig. 2, the rail vehicle partition provided by the embodiment may be installed in a rail vehicle or other vehicles to protect high-power electrical equipment installed in the vehicles. It is fixed through bolt and automobile body, and the clearance between the cabinet body and the automobile body is sealed through fire prevention inflation glue.

The rail vehicle partition comprises a cabinet body 1 and at least one access door 2 arranged on the cabinet body 1, wherein one side of the cabinet body 1 is an inner side A, the other side of the cabinet body 1 is an outer side B, and the access door 2 is arranged on the cabinet body 1 and can be opened towards the outer side B. And the lap joint of the access door 2 and the cabinet body 1 adopts a fireproof expansion adhesive tape. The number and the size of the access doors 2 can be adjusted according to the equipment maintenance requirement.

As shown in fig. 3, the cabinet body 1 and the access door 2 are sandwich boards, the outer layer of the sandwich board is an aluminum plate skin 5, and the inner sandwich is an aluminum honeycomb core plate 6. The cabinet body 1 and the access door 2 are provided with a steel plate skin 7 and a fireproof material layer 8 in sequence from an outer side B to an inner side A, and the steel plate skin 7 is attached to the aluminum plate skin 5.

In this embodiment, the steel plate skin 7 is a silicon steel skin, and the fireproof material layer 8 is ceramic fiber cotton. Silicon steel has good magnetic conductivity, and needs to be grounded in practical application, so that electromagnetic interference generated by high-power electrical equipment in the cabinet can be shielded. In other embodiments, the steel plate skin 7 may also be a carbon steel plate.

The thickness of the ceramic fiber cotton can be adjusted according to the fireproof performance requirement. According to the current protocol and test results, the requirements of E15 (integrity 15 minutes) and I15 (thermal insulation 15 minutes) of EN 45545-3 standard can be met.

In other embodiments, the fireproof material layer 8 is a fireproof coating layer, and the fireproof coating is directly sprayed on the steel plate skin 7 to meet the fireproof partition performance.

As shown in fig. 2 and 4, at least one of the access doors 2 is provided with a ventilation grille 3. The ventilation grille 3 ventilates and dissipates heat between the equipment on the inner side a of the cabinet 1 and the outside (the outer side B).

The silencing air duct 4 can be fixed on the inner side of the access door 2 with the ventilation grating 3 through bolts and covers the ventilation grating 3, so that the silencing air duct 4 is integrally attached to the inner side of the access door 2. The silencing air duct 4 comprises an outer frame 41 and an inner frame 42, the outer frame 41 is mounted on the access door 2, and an m-shaped air duct is arranged in the outer frame 41. The inner frame 42 is provided with a u-shaped air channel, the u-shaped air channel is arranged in the m-shaped air channel, and the inner frame 42 is respectively connected with the outer frame 41 and the access door 2.

The m-shaped air channel and the u-shaped air channel are combined to form a labyrinth air channel structure, so that airflow circulates in the labyrinth air channel, the impact pressure of the airflow is effectively restrained, the noise is effectively reduced, and the noise generated when the high-power electrical equipment runs cannot be directly transmitted into a passenger room through the ventilation grating. The inner frame 42 and the outer frame 41 are chamfered at positions where the wind resistance is large, particularly at four corners of the m-shaped air duct, to reduce the airflow resistance. The chamfer may be a circular arc chamfer.

Sound-absorbing cotton can be arranged in the m-shaped air channel and the u-shaped air channel. Or sticking a sound insulation felt on the cabinet body 1 and the inner side A of the access door 2, wherein the sound insulation felt is stuck on the fireproof material layer 8.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A rail vehicle partition comprises a cabinet body (1) and at least one access door (2) arranged on the cabinet body (1), wherein one side of the cabinet body (1) is an inner side A, the other side of the cabinet body is an outer side B, and the access door (2) is arranged on the cabinet body (1) and can be opened towards the outer side B; the cabinet is characterized in that the cabinet body (1) and the access door (2) are sandwich plates, the outer layer of each sandwich plate is an aluminum plate skin (5), and the inner sandwich is an aluminum honeycomb core plate (6); the cabinet body (1) and the access door (2) are sequentially provided with a steel plate skin (7) and a fireproof material layer (8) from an outer side B to an inner side A, and the steel plate skin (7) is attached to the aluminum plate skin (5).

2. The railway vehicle partition according to claim 1, characterized in that the layer of fire-retardant material (8) is a ceramic fibre wool or a layer of fire-retardant coating.

3. Railway vehicle partition according to claim 1, characterized in that the steel sheet skin (7) is silicon steel or carbon steel.

4. The railway vehicle partition according to claim 1, further comprising a sound insulation felt attached to the layer of fire-retardant material (8).

5. The rail vehicle partition according to claim 1, further comprising a sound-damping air duct (4); a ventilation grating (3) is arranged on at least one access door (2); the silencing air duct (4) is arranged on the inner side of at least one access door (2) and covers the ventilation grating (3).

6. The rail vehicle partition according to claim 5, wherein the silencing air duct (4) comprises an outer frame (41) and an inner frame (42), the outer frame (41) is mounted on the access door (2), and an m-shaped air duct is arranged in the outer frame (41); the U-shaped air channel is arranged on the inner frame (42), the U-shaped air channel is arranged in the m-shaped air channel, and the inner frame (42) is connected with the outer frame (41) and the access door (2) respectively.

7. The railway vehicle partition of claim 6, wherein the m-shaped air chute has four corners, each of which is rounded.

8. The railway vehicle partition of claim 6, wherein sound absorbing cotton is arranged in the m-shaped air channel and the u-shaped air channel.

9. The railway vehicle partition according to claim 1, wherein a fireproof expansion rubber strip is arranged at the lap joint of the access door (2) and the cabinet body (1).