CN212462494U

CN212462494U - Subway high-pressure box

Info

Publication number: CN212462494U
Application number: CN202021531318.XU
Authority: CN
Inventors: 王智勇; 史建强; 蔡纪卫; 宫兆超; 鲍庆臣
Original assignee: CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd
Current assignee: CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-02-02
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to a subway high-pressure box, the box body of the high-pressure box is formed by bending and splicing a plurality of bent sheet metal parts; the box body is provided with a door plate, the door plate is hinged or fixed through bolts, and a plurality of layers of sealing strips are pressed between the door plate and the box body. The high-pressure box is compact in structure, reasonable in layout, modular in design, high in compatibility and high in universality.

Description

Subway high-pressure box

Technical Field

The utility model belongs to the high-pressure tank field especially relates to a subway high-pressure tank.

Background

The high-voltage box is used as an important component of a rail vehicle traction system, and high-voltage electrical equipment is usually used for protecting a traction circuit of a vehicle, so that whether the vehicle can safely and reliably run is directly influenced, and the driving safety and the personnel safety are influenced. Because the box body of the traction system is mainly under a vehicle and the environment is relatively severe, the mechanical strength and the sealing mode of the box body are particularly important. At present, a common auxiliary high-pressure box mainly adopts a frame type box body, the box body is large in size and heavy in weight, and the requirements of vehicle body light weight and integration are difficult to meet more and more. Therefore, the utility model discloses consider to design a frameless box structure, make the box satisfy design demands such as compact structure, integrated level height, lightweight.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the not enough of above-mentioned current high-pressure tank existence, provide a subway high-pressure tank, high-pressure tank compact structure, rationally distributed, modular design, compatibility and commonality are high.

In order to achieve the purpose, the utility model provides a subway high-pressure box, which comprises a box body, wherein the box body is formed by bending and splicing a plurality of bent sheet metal parts;

the box body is provided with a door plate, the door plate is hinged or fixed through bolts, and a plurality of layers of sealing strips are pressed between the door plate and the box body.

Preferably, two layers of sealing strips are pressed between the door plate and the box body;

in the door plate, the edge of the door plate and the internal reinforcing ribs form an annular area, a first layer of sealing strip is installed, and the annular area is tightly matched with the first layer of sealing strip to ensure the first sealing of the box body;

and a second layer of sealing strip is arranged on the edge of the front skin of the box body, and the edge of the front skin is tightly matched with the second layer of sealing strip, so that the second sealing of the box body is ensured.

Preferably, the box body is further provided with a lifting lug, and the lifting lug is fastened to the box body through a bolt.

Preferably, the high-voltage box further comprises a disconnecting link switch, a fuse, a PCB and a voltage sensor;

the disconnecting link switch and the fuse are installed on the side wall of the interior of the box body as a module;

the PCB and the voltage sensor are arranged on the side wall of the box body, and the disconnecting switch and the fuse are located on different side walls of the box body.

Preferably, the high-pressure tank further comprises a limit switch, the limit switch is installed at the joint of the door plate and the tank body, and the limit switch is collided to act according to the opening and closing of the door plate.

Preferably, the high pressure tank further comprises a high pressure connector and a low pressure connector;

the high-voltage connector is installed on an outer skin of the box body through self thread connection;

the low-voltage connector is installed on an outer skin of the box body through bolt connection and is arranged in a partitioned and separated mode with the high-voltage connector.

Preferably, the high-voltage box further comprises a high-voltage outlet terminal, the high-voltage outlet terminal is arranged as an external high-voltage connection interface of the high-voltage box, is composed of a plurality of wiring terminal rows, is distributed in the top area of the box body according to functional requirements, and is used for the in-and-out connection of a high-voltage wire of the high-voltage box.

Preferably, the socket for the library is connected to the right side of the box body by a bolt.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides a high-pressure tank with compact structure, reasonable layout, modular design, high compatibility and high universality, wherein the tank body is made of stainless steel, thus greatly enhancing the strength and corrosion resistance of the tank body; the box body is formed by bending and splicing bent sheet metal parts, and has a frameless structure, so that the number of welding seams is reduced, the error rate is reduced, the box body assembling process is simple, and the production efficiency is improved; meanwhile, two layers of sealing strips are pressed between the box body and the door plate, so that the dustproof and waterproof effects are greatly improved, and the sealing effect is more remarkable. Meanwhile, the high-pressure box is divided into a plurality of modules according to different functional units, and each module is uniformly distributed in a visible area of the door plate under the condition of compact box body space, so that the high-pressure box is convenient to assemble and disassemble, the production efficiency and the overhauling and maintaining efficiency are improved, and the production and overhauling costs are reduced. The high-voltage connector and the low-voltage connector are arranged in a partitioning mode, the high-voltage cable and the control circuit are separately wired, electromagnetic interference of the high-voltage circuit on the control circuit is reduced, and stability of the whole system of the high-voltage box is improved. The high-pressure box is compact in structure, reasonable in layout, high in modular design, compatibility and universality, and can be used for rail vehicles such as subways and motor train units.

Drawings

Fig. 1 is a front view of a high pressure tank of the present invention;

FIG. 2 is a rear view of the high pressure tank;

FIG. 3 is an internal cross-sectional view of the high pressure tank;

FIG. 4 is an enlarged view of a portion of the high pressure tank;

wherein: the box body 1, the door panel 2, the sealing strip 3, the first layer of sealing strip 31, the second layer of sealing strip 32, the lifting lug 4, the disconnecting link switch 5, the fuse 6, the PCB 7, the voltage sensor 8, the limit switch 9, the high-voltage connector 10, the low-voltage connector 11, the high-voltage outlet terminal 12 and the warehouse socket 13.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the above-described drawings are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.

The embodiment provides a high-pressure tank, is applicable to among the railcar, and it is shown with reference to fig. 1, fig. 2, and high-pressure tank's box 1 is bent the concatenation by the polylith sheet metal component of bending and is formed, installs door plant 2 on the box 1, and the door plant is through articulated or bolt fastening, and the pressfitting has multilayer sealing strip 3 between door plant 2 and the box 1. As shown in fig. 3 and 4, in the embodiment, two layers of sealing strips 3 are pressed between the door panel 2 and the box body 1, in the door panel, the edge of the door panel and the internal reinforcing rib form an annular area, a first layer of sealing strip 31 is installed, and the annular area is tightly matched with the first layer of sealing strip to ensure the first sealing of the box body; a second layer of sealing strip 32 is installed on the edge of the front skin of the box body, the edge of the front skin is tightly matched with the second layer of sealing strip, the second sealing of the box body is guaranteed, and the two sealing conditions provide conditions for safe work of electric devices inside the box body. The box body 1 is also provided with a lifting lug 4 which can be fastened on the box body 1 through bolts.

Box 1 adopts stainless steel in this embodiment, has the sheet metal component concatenation of bending to form, and the concatenation position is fixed through the welding form, and the limit of bending reduces welding deformation, and intensity obtains increasing. Compared with the traditional frame type box body, the high-pressure box body is assembled through plates, and the purposes of light weight and low cost are achieved. The door plate 2 is made of aluminum alloy materials, so that the weight of the box body is reduced, the door plate is hinged or fixed by bolts with the box body 1, and the door plate is light and convenient to detach. Two-layer sealing strip 3 of pressfitting between door plant 2 and the box 1 prevents the entering of dust and water, has greatly improved the protection requirement grade of box, protects inside electrical components's normal operating.

The high-voltage box comprises a high-voltage conversion circuit and a power grid voltage detection circuit, wherein the pantograph and a workshop power supply are powered on, the power grid voltage detection circuit detects the power grid voltage through a voltage sensor, and a sensor sampling signal is directly sent to a cab voltage meter to display the power grid voltage. In this embodiment, a knife switch 5, a fuse 6, a PCB 7, a voltage sensor 8, a limit switch 9, a high voltage connector 10, a low voltage connector 11, a high voltage outlet terminal 12, and a socket 13 for a warehouse are provided in the high voltage box.

The disconnecting link switch 4 and the fuse 5 are installed on the inner side wall of the box body 1 as a module, the disconnecting link switch 5 is in multi-path linkage in the existing space, the switch is installed on the side wall of the box body, and the box door is opened to facilitate operation of the switch, so that the use efficiency is improved. The fuse 6 is used as short-circuit protection of the auxiliary incoming line bus, and plays a role in protecting the safe operation of a circuit for the high-voltage box. PCB board 7 and voltage sensor 8 install in the lateral wall of box 1, lie in the different lateral walls of box with switch 4 and fuse 5, make things convenient for personnel to overhaul and look over. The limit switch 9 is arranged at the joint of the door plate 2 and the box body 1, and the contact acts to realize the connection or disconnection of a control circuit according to the action of the limit switch when the door plate 2 is opened or closed, so that a certain control purpose is achieved, and the protection of operators is realized.

The high-voltage connector 10 is installed on an outer skin of the box body 1 through self threaded connection, and has the function of connecting all functions of a traction system in series, determining the in-out connection position of a high-voltage cable in the auxiliary high-voltage box and facilitating the overall layout design. The low-voltage connector 11 is installed on an outer skin of the box body 1 through bolt connection, is an interface of an external low-voltage control circuit of the auxiliary high-voltage box, and facilitates overall layout of control lines. Meanwhile, the high-voltage connector module and the low-voltage connector module are installed in a separated mode, wiring paths are distinguished, and the requirement that high-voltage wiring and low-voltage wiring in the standard should be separated is met. The high-voltage outlet terminal 12 is arranged as an external high-voltage connection interface of the high-voltage box, is composed of a plurality of wiring terminal rows, is distributed in the top area of the box body according to functional requirements, realizes the in-and-out connection of a high-voltage wire of the high-voltage box, communicates the high-voltage box with a high-voltage loop of the whole traction system, and realizes the current protection function. The socket 13 for the garage is connected to the right side of the box body 1 through bolts and used for debugging vehicles in the garage.

In summary, the utility model provides a high pressure tank with compact structure, reasonable layout, modular design, high compatibility and high versatility, the tank body is made of stainless steel, which greatly enhances the strength and corrosion resistance of the tank body; the box body is formed by bending and splicing bent sheet metal parts, and has a frameless structure, so that the number of welding seams is reduced, the error rate is reduced, the box body assembling process is simple, and the production efficiency is improved; meanwhile, two layers of sealing strips are pressed between the box body and the door plate, so that the dustproof and waterproof effects are greatly improved, and the sealing effect is more remarkable. Meanwhile, the high-pressure box is divided into a plurality of modules according to different functional units, and each module is uniformly distributed in a visible area of the door plate under the condition of compact box body space, so that the high-pressure box is convenient to assemble and disassemble, the production efficiency and the overhauling and maintaining efficiency are improved, and the production and overhauling costs are reduced. The high-voltage connector and the low-voltage connector are arranged in a partitioning mode, the high-voltage cable and the control circuit are separately wired, electromagnetic interference of the high-voltage circuit on the control circuit is reduced, and stability of the whole system of the high-voltage box is improved. The high-pressure tank is compact in structure, reasonable in layout, high in integration level, modular in design, high in compatibility and universality, and capable of being used for rail vehicles such as subways and motor train units.

Claims

1. The subway high-pressure box is characterized by comprising a box body, wherein the box body is formed by bending and splicing a plurality of bent sheet metal parts;

2. The subway high-pressure box as claimed in claim 1, wherein two layers of sealing strips are pressed between said door panel and box body;

3. A subway high-pressure box as claimed in claim 1, wherein said box body is further provided with a lifting lug, said lifting lug is fastened to said box body by means of bolts.

4. The subway high-voltage box as claimed in any one of claims 1-3, further comprising a knife switch, a fuse, a PCB board and a voltage sensor;

5. A subway high-pressure box as claimed in any one of claims 1 to 3, further comprising a limit switch installed at a junction of said door panel and box body, said limit switch being operated in response to the opening and closing of said door panel.

6. A subway high pressure tank as claimed in any one of claims 1-3, further comprising a high pressure connector and a low pressure connector;

7. A metro high-voltage box according to any one of claims 1 to 3, further comprising a high-voltage outlet terminal, wherein the high-voltage outlet terminal is configured as an external high-voltage connection interface of the high-voltage box, is composed of a plurality of terminal rows, is distributed in the top area of the box body according to functional requirements, and is used for the in-out connection of high-voltage lines of the high-voltage box.

8. A subway high-pressure box as claimed in any one of claims 1-3, further comprising a socket for garage, said socket for garage being bolted to the right side of said box body.