CN117239499A - Junction device and rail vehicle - Google Patents

Abstract

The present disclosure provides a junction device and a railway vehicle, the junction device including: a housing; and a wiring assembly disposed within the housing, comprising: the access ends of the wiring parts are electrically connected with traction converters of the motor train unit through bridge passing cables arranged between two adjacent car bodies of the motor train unit, and the extraction ends of the wiring parts are electrically connected with in-car equipment and under-car equipment of the rail vehicle.

Description

Junction device and rail vehicle

Technical Field

At least one embodiment of the present disclosure relates to the technical field of electrical equipment, and more particularly, to a wiring device and a rail vehicle.

Background

Based on the development of rail traffic technology, currently, most of the adopted motor cars consist of one or more groups of motor cars.

In order to meet the demands of grouping and ungrouping of rail vehicles, adjacent vehicle bodies are connected through a bridge cable, and for this purpose, corresponding wiring equipment is required to be arranged in a trailer to connect the bridge cable. On this basis, in order to carry out secondary distribution on the circuit accessed by the bridge cable, branching equipment is also required to be configured in the trailer so that the circuit is respectively connected to in-vehicle equipment and off-vehicle equipment.

At present, because the wiring equipment and the branching equipment are respectively arranged on the basis of the technical means, larger space in the vehicle body is occupied, and particularly, the branching equipment arranged in the equipment cabin below the bottom plate of the vehicle body also limits the space layout in the equipment cabin and influences the arrangement of other equipment; in addition, the branching cable led into the in-car equipment at the upper part of the car body is led out indirectly from the equipment cabin, so that the extension of the splicing distance is also caused, the cable is wasted, and the limited space in the car body is further occupied.

Disclosure of Invention

To solve at least one technical problem described above and other aspects in the prior art, the present disclosure provides a wiring device and a rail vehicle. The wiring assembly has the functions of connecting and guiding the bridge cable and branching, is beneficial to saving space in the vehicle body and is beneficial to saving the length of the cable required to be arranged.

Embodiments of the present disclosure provide a wiring device configured in a rail vehicle, comprising: a housing; and a wiring assembly disposed in the housing, comprising: and a connection part, wherein an access end of the connection part is electrically connected with a traction converter of the motor train unit through a bridge cable arranged between two adjacent car bodies of the motor train unit, and a lead-out end of the connection part is electrically connected with in-car equipment and/or under-car equipment of the railway car.

According to an embodiment of the present disclosure, another portion of the wiring assembly described above is configured to be electrically connected to an in-vehicle device or an off-vehicle device of a rail vehicle.

According to an embodiment of the present disclosure, the above-described wiring portion includes: the first connecting piece is suitable for being electrically connected with the in-vehicle equipment and/or the off-vehicle equipment through a branching cable; and a second connector, one side of the second connector is configured to be electrically connected with the first connector, and the other side is configured to be connected with the bridge cable.

According to an embodiment of the present disclosure, the first connector is provided with a connection terminal adapted to be connected to the junction cable, so as to be electrically connected to the in-vehicle device or the off-vehicle device.

According to an embodiment of the present disclosure, the first connector is provided with two connection terminals adapted to connect the branching cable, and is electrically connected to the in-vehicle device and the off-vehicle device.

According to an embodiment of the disclosure, the two connection terminals of the first connector are disposed opposite to each other, so that the two branch cables connected to the first connector extend from the housing in opposite directions.

According to an embodiment of the present disclosure, the bridge cable is configured to be arranged in a direction substantially parallel to the branching cable.

According to an embodiment of the present disclosure, the wire connection assembly further includes a mounting portion adapted to be mounted on the housing in an insulating manner.

According to an embodiment of the present disclosure, the above-described mounting portion includes: the mounting rack is mounted on the shell and is provided with at least one accommodating groove; and an insulating member, wherein the wiring portion is mounted in the housing groove through the insulating member.

According to an embodiment of the present disclosure, the junction assembly further includes a hub connector mounted to an end of the bridge cable connected to the junction portion, and adapted to connect the bridge cable to the junction portion.

According to an embodiment of the present disclosure, the wiring device further includes a cover body openably and closably mounted in an access opening formed in the housing.

Embodiments of the present disclosure also provide a railway vehicle configured with a junction device, a housing of which is mounted on a body end wall of the railway vehicle.

According to an embodiment of the present disclosure, the above-described railway vehicle is used as a trailer for a motor train consist.

According to an embodiment of the present disclosure, the housing of the wiring device has an embedded portion located inside the vehicle body end wall and an exposed portion exposed to the outside of the vehicle body end wall; wherein, be provided with the access hole on the above-mentioned exposure portion.

According to an embodiment of the present disclosure, the junction cable connected to the junction device is configured to be led out from the housing in a vertical direction to be electrically connected to an in-vehicle device located above a floor of the rail vehicle and/or an off-vehicle device located in a device cabin below the floor of the rail vehicle.

According to an embodiment of the present disclosure, the bridge cable connected to the junction apparatus is configured to be led out from the housing in a vertical direction.

The wiring device and the rail vehicle are provided according to the present disclosure. The access end of the wiring part of the wiring assembly is suitable for connecting a bridge cable, the extraction end is suitable for being electrically connected with in-car equipment and/or under-car equipment so as to lead the power supply of a traction converter configured by the motor cars in the motor car grouping into a railway vehicle and carry out branching so as to respectively supply power to the in-car equipment and/or the under-car equipment. Therefore, the wiring assembly has the functions of connecting and guiding the bridge cable and branching, at least one branching device can be saved, the space of the equipment cabin at the lower part of the railway vehicle is not required to be occupied, and the length of the arranged cable is reduced due to the shortened connecting and guiding distance.

Drawings

FIG. 1 is an exploded view of a piece of wiring device according to one illustrative embodiment of the present disclosure;

FIG. 2 is a perspective view of the wiring device of the illustrative embodiment shown in FIG. 1, with the cover omitted;

FIG. 3 is a cross-sectional view of the schematic embodiment shown in FIG. 2 from a left-hand perspective;

FIG. 4 is an enlarged view of a portion of the wiring assembly of the exemplary embodiment shown in FIG. 1; and

fig. 5 is a view showing a state in which the wiring device of the exemplary embodiment shown in fig. 1 is arranged on a body end wall of a railway vehicle.

In the drawings, the reference numerals have the following meanings:

1. a housing;

11. an embedding part;

12. a flange;

13. an exposure portion;

2. a wiring assembly;

21. a sleeve;

22. a cube block;

23. a second connector;

24. a hub connector;

241. a contact;

242. an inner tube;

243. an outer tube;

25. a mounting frame;

26. a T-shaped block;

261. a connection terminal;

262. a groove;

27. an insulating member;

28. a first bolt;

29. a second bolt;

3. a cover body;

4. a wire-dividing cable;

5. a bridge cable; and

6. and a vehicle body end wall.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and/or the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms, including technical and scientific terms, used herein have the meaning commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.

Where expressions like at least one of "A, B and C, etc. are used, the expression" system having at least one of A, B and C "shall be construed, for example, in general, in accordance with the meaning of the expression as commonly understood by those skilled in the art, and shall include, but not be limited to, systems having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc. Where a formulation similar to at least one of "A, B or C, etc." is used, such as "a system having at least one of A, B or C" shall be interpreted in the sense one having ordinary skill in the art would understand the formulation generally, for example, including but not limited to systems having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.

At present, the adopted motor cars are mostly formed by one or more groups of motor car groups, and each motor car group at least comprises a motor car provided with a traction motor and a plurality of trailers powered by the motor car. In order to supply power to other devices (such as an under-vehicle device disposed in a device cabin and an in-vehicle device disposed outside the device cabin) in the trailer other than the power device, it is necessary to supply electric power output from the traction converter to the trailer in the same or another motor train consist through the bridge cable.

For this purpose, wiring devices are required to be disposed in the trailer to guide the bridge cable, and branching devices are required to distribute electric power to corresponding off-board devices and in-board devices. Currently, the distribution equipment is often arranged in an equipment cabin below the floor of the rail vehicle, and therefore occupies space in the equipment cabin. In addition, since the bridging cables are led into the branching device in a centralized manner, and then secondarily distributed by the branching device, that is, even the branching cable 4 arranged to the in-vehicle device passes through the device cabin, the extension of the bridging distance is also caused, the waste of the cables is caused, and the distribution of other devices in the device cabin is further affected by the branching cable secondarily distributed by the branching device.

Based on the shortcomings of the above technology, the technical problem to be solved is to provide a wiring device which is beneficial to saving the internal space in the railway vehicle, shortening the guiding distance and facilitating maintenance.

In view of the above, embodiments of the present disclosure provide a wiring device and a rail vehicle based on the same inventive concept.

Fig. 1 is an exploded view of a piece of wiring device according to one illustrative embodiment of the present disclosure.

The wiring device provided by the disclosure and configured in a railway vehicle, as shown in fig. 1, comprises a shell 1 and a wiring assembly 2 arranged in the shell 1. The wiring assembly 2 includes a plurality of wiring portions. The access ends of the wiring sections are configured to be electrically connected to the traction converter of the motor train consist via a bridge cable 5 disposed between two adjacent bodies of the motor train consist, and the outgoing ends of at least a portion of the wiring sections are configured to be electrically connected to the in-car and off-car equipment of the rail vehicle.

According to an embodiment of the present disclosure, as shown in fig. 2, another portion of the wiring assembly 2 is configured to be electrically connected with an in-vehicle device or an off-vehicle device of a rail vehicle.

In an exemplary embodiment, as shown in fig. 1 and 2, 6 wire connection portions are disposed in the wire connection assembly 2. Wherein three wiring portions (three wiring portions on the left side as shown in fig. 2) are configured to be electrically connected with in-vehicle equipment and under-vehicle equipment of the railway vehicle, and the other three wiring portions (three wiring portions on the right side as shown in fig. 2) are configured to be electrically connected with the under-vehicle equipment. It should be understood that embodiments of the present disclosure are not limited thereto.

For example, the wiring portion may be configured in any of two, three, four, five, and others.

Further, a plurality of wiring portions may be arranged in groups. For example, each group may be configured with three wiring sections, each wiring section adapted to electrically connect three phases of one phase (e.g., U-phase, V-phase, and W-phase).

In such an embodiment, the access end of the connection section of the connection assembly is adapted to be connected to a bridging cable, and the outlet end is adapted to be electrically connected to the in-vehicle device and/or the off-vehicle device, so as to introduce the power supply of the traction converter configured by the motor vehicles grouped by the motor vehicles into the rail vehicle and to split the line so as to supply the power to the in-vehicle device and/or the off-vehicle device, respectively. Therefore, the wiring assembly has the functions of connecting and guiding the bridge cable and branching, at least one branching device can be saved, the space of the equipment cabin at the lower part of the railway vehicle is not required to be occupied, and the length of the arranged cable is reduced due to the shortened connecting and guiding distance.

According to an embodiment of the present disclosure, as shown in fig. 1, the wiring device further includes a cover 3 openably and closably mounted in an access opening formed in the housing 1.

In one illustrative embodiment, as shown in FIG. 1, the housing 1 includes, but is not limited to, being configured as a cube structure. In detail, one side end surface of the housing 1 forms an opening to serve as an access port for viewing and/or repairing the wiring assembly 2. Further, the cover 3 includes, but is not limited to, being detachably mounted within the access opening of the housing 1 to expose the wiring assembly 2 in an open condition for maintenance and repair by personnel.

Fig. 2 is a perspective view of the wiring device of the exemplary embodiment shown in fig. 1, wherein the cover is omitted.

According to an embodiment of the present disclosure, as shown in fig. 1 and 2, the wire connection part includes a first connection member and a second connection member 23. The first connector is adapted to be electrically connected to in-vehicle and/or off-vehicle equipment by means of a distribution cable 4. One side of the second connector 23 is configured to be electrically connected to the first connector and the other side is configured to be connected to the bridge cable 5.

According to one embodiment of the present disclosure, as shown in fig. 1, the first connector is provided with a connection terminal 261 adapted to be connected with the distribution cable 4 so as to be electrically connected with an in-vehicle device or an off-vehicle device.

In an exemplary embodiment, the first connector is configured as a cube 22 of conductive material (e.g., copper). In detail, a recess 262 allowing the end of the distribution cable 4 to be inserted is provided in the cube block 22. Further, a screw is detachably mounted at a side orthogonal to the extending direction of the groove 262 to serve as a connection terminal 261 of the junction cable 4 to press against the junction cable 4 in a direction orthogonal to the notch of the groove 262 in a state where the end of the junction cable 4 is extended into the groove 262, so that the junction cable 4 is brought into close contact with the bottom of the groove 262 to electrically connect the junction cable 4 with the cube 22. Wherein the recess 262 formed on the cube block 22 may be provided along with the extending direction of the distribution cable 4 arranged.

For example, an upper portion of the cube 22 may form a recess 262 such that a split cable 4 disposed between the cube 22 and an in-vehicle device (including but not limited to at least one of an air conditioner, a water heater, a lighting device, a ventilation device, or other device disposed within a motor vehicle) extends upward in a generally vertical direction.

For another example, a lower portion of the cube 22 may be formed with a recess 262 such that the split cable 4 disposed between the cube 22 and the under-vehicle equipment (including, but not limited to, at least one of an auxiliary circuit junction box, a waste drain, a single-phase inverter power supply, and other under-floor equipment disposed in the cabin) extends downward in a generally vertical direction.

In such an embodiment, the junction cable 4 connected to the in-vehicle device or the off-vehicle device can be connected to the bridge cable 5 for use as a junction in a state where the junction is not required.

Fig. 3 is a cross-sectional view from the left side of the illustrative embodiment shown in fig. 2.

According to another embodiment of the present disclosure, as shown in fig. 1 to 3, the first connector is provided with two connection terminals 261 adapted to connect the junction cable 4, so as to be electrically connected with the in-vehicle device and the off-vehicle device.

In one illustrative embodiment, the first connector is configured as a T-block 26 made of a conductive material (e.g., copper). In detail, the opposite sides (upper and lower sides as shown in fig. 3) of the T-block 26 form protrusions, respectively. Further, a recess 262 is provided in each of the projections for allowing the insertion of the end of the distribution cable 4. Further, a screw is detachably mounted at a side orthogonal to the extending direction of the groove 262 to serve as a connection terminal 261 of the junction cable 4 to press against the junction cable 4 in a direction orthogonal to the notch of the groove 262 (left and right directions as viewed in fig. 3) in a state where the end of the junction cable 4 is extended into the groove 262, so that the junction cable 4 is brought into close contact with the bottom of the groove 262 to electrically connect the junction cable 4 with the T-block 26.

In such an embodiment, the different in-vehicle devices and off-vehicle devices may be connected to share one T-block 26 for branching, so as to reduce the number of first connectors to be configured. Moreover, the cube blocks 22 and the T-shaped blocks 26 are detachably mounted in the housing 1, so as to increase, decrease and/or replace the cube blocks in different use situations, thereby improving the flexibility of the wiring device.

According to an embodiment of the present disclosure, as shown in fig. 3, two connection terminals 261 of the first connector are disposed opposite to each other, so that two branch cables 4 connected to the first connector extend from the housing 1 in opposite directions.

In one illustrative embodiment, as shown in FIG. 3, the grooves 262 of the T-block 26 are disposed back (i.e., at the upper and lower portions of the T-block 26).

In an exemplary embodiment, as shown in fig. 1-3, the wiring assembly 2 further includes a sleeve 21 disposed on the housing 1. In detail, a position (including but not limited to an orthographic projection position of the recess 262 in a vertical direction) of the housing 1 corresponding to the recess 262 formed by the first connector is provided with a wire outlet adapted to receive the split cable 4 led out of the housing 1. Further, a sleeve 21 is disposed within each of the ports to allow the split cable 4 to pass through the sleeve 21 and connect with the housing to limit the axial and radial positions of the split cable 4.

In such an embodiment, the sleeve 21 is provided to further limit the mounting position of the cable 4 with respect to the housing 1, so as to prevent the cable 4 from being separated from the housing 1 due to the loosening of the connection terminal (screw), and also to prevent the cable 4 from being folded and broken due to the bending of the cable 4 to one side of the wire opening due to external stress.

According to an embodiment of the present disclosure, as shown in fig. 1 to 3, the junction assembly 2 further includes a hub connector 24 mounted to an end of the bridge cable 5 connected to the junction portion, adapted to connect the bridge cable 5 to the junction portion.

In an exemplary embodiment, as shown in fig. 1-3, the second connector 23 includes, but is not limited to, an L-shaped block configured to be made of a conductive material (e.g., copper). In detail, the wide side (left side as shown in fig. 3) of the L-shaped block 23 is provided with a through hole adapted to be coupled to a surface (left end surface as shown in fig. 3) of the first coupling member, which is not provided with the recess 262, by the first bolt 28, so that a larger contact area between the second coupling member 23 and the first coupling member is provided, and the second coupling member 23 is more stably coupled to the first coupling member. While the narrow side (right side as shown in fig. 3) of the second connector 23 is provided with a through hole to be fitted over the hub connector 24 mounted to the end of the bridge cable 5.

In such an embodiment, the connection portions formed by the first and second connectors 23 connect the ends of the bridge cable 5 and the branch cable 4 to the inside of the housing 1, so that there is no need to dispose another cable between the bridge cable 5 and the branch cable 4, thereby shortening the connection distance. The first connector 23 configured as a T-block and the second connector 23 configured as an L-block can provide a certain amount of redundancy in the connection positions of the branching cable 4 and the bridging cable 5. For example, after the connection portion is connected to the branching cable 4, the connection position of the bridging cable 5 can be adjusted by a small amount of deformation of the arm portion of the second connector 23, which is beneficial to reducing damage to the cable, because the general position of the connection portion is fixed during the process of further connecting the bridging cable 5.

Fig. 4 is an enlarged view of a portion of the wiring assembly of the exemplary embodiment shown in fig. 1.

In one illustrative embodiment, as shown in fig. 4, the hub connector 24 includes, but is not limited to, an inner tube 242 that is sleeved at one end of the bridge cable, an outer tube 243 that is sleeved on the outer tube, and contacts 241 that are electrically connected to the core of the bridge cable 5 and extend from the inner tube. In detail, the inner tube 242 is constructed in an expanded tube structure, and the inner edge of the outer tube 243 is provided with an internal thread adapted to be screw-fitted with the inner tube 242 so as to closely press the inner tube tight fins against the outer side of the bridge cable 5 in a state where the inner tube 242 is assembled. Further, one end of the contact 241 located inside the inner tube 242 is inserted into the core of the bridge cable 5, and the end of the contact 241 located outside the inner tube extends in a direction orthogonal to the narrow side of the second connecting member 23 (up-down direction as shown in fig. 3). Further, the top of the contact is provided with a screw hole to be fixed in a through hole provided at the narrow side of the second connection member 23 by a second bolt 29 to electrically connect the bridge cable 5 with the wiring portion.

In such an embodiment, since the bridge cable 5 is disposed between adjacent rail vehicles, the bridge cable 5 tends to move due to vibration or the like during traveling of the motor vehicle (e.g., during the over-bending of the motor vehicle), and for this purpose, the inner tube is configured in an expanded tube structure, and is expanded radially outwardly in a state of being inserted into the bridge cable 5, and the outer tube is adapted to be engaged with the inner tube so that the position of the bridge cable 5 with respect to the inner tube is locked and is also adapted to be connected with the housing, thereby fixing the bridge cable 5 in the housing 1, thereby preventing loosening of the wiring due to the movement of the bridge cable 5. The contacts are adapted to be inserted directly into the ends of the bridge cable 5 in the axial direction of the bridge cable 5 so that the contacts make good contact with the wire core of the bridge cable 5 and are fixed on the narrow side of the second connection piece 23. In this way, the sleeve 21 and the cable collecting connector 24 disposed on the housing restrict the ends of the branch cable 4 and the bridge cable 5 located in the housing 1 to the housing, which is advantageous in maintaining the contact state of the branch cable 4 and the bridge cable 5 with respect to the connection portion, and in maintaining the electrically connected state even if the connection terminal 261 is loosened from the first connector and/or the branch cable 4.

Further, based on the use scene that the both ends of crossing bridge cable 5 are arranged in different rail vehicles, all assemble the tip of separated time cable 4 and crossing bridge cable 5 in a casing 1 and directly connect and draw the mode that draws once more than original through separated time equipment, more do benefit to the stability that maintains the electricity and connect. Even if the bridge cable 5 is moved, the bridge cable 5 and the connection portion are loosened, which is beneficial to repair and maintenance (if an independent branching device is adopted to carry out branching again, once the disconnection occurs, the connection position of the bridge cable 5 and the branching device, the connection position of the branching device and the connection device, and the connection branches of the wiring device and the branching cable are respectively checked to determine which part is loose to cause poor contact).

According to an embodiment of the present disclosure, as shown in fig. 3 and 4, the bridge cable 5 is configured to be arranged in a direction substantially parallel to the branch cable 4.

In an exemplary embodiment, both the break-out cable 4 and the pass-through cable 5 are configured to extend in an up-and-down direction as shown in fig. 3.

In such an embodiment, the branching cables arranged along the vertical direction (i.e. the up and down directions as shown in fig. 3) can extend to the general direction of the electric equipment (i.e. the in-car equipment and the under-car equipment) to be connected, which is beneficial to shortening the guiding distance and reducing the length of the arranged branching cables, on the other hand, the branching cables 4 arranged along the vertical direction and the bridging cables 5 correspondingly arranged are more regular compared with the wiring mode of staggered arrangement or arrangement along the orthogonal direction, which is beneficial to the miniaturization design of the housing 1.

According to an embodiment of the present disclosure, as shown in fig. 2 to 4, the wiring assembly 2 further includes a mounting portion adapted to be mounted on the housing 1 with insulation of the wiring portion.

According to an embodiment of the present disclosure, as shown in fig. 1 to 4, the mounting portion includes a mounting bracket 25 and an insulator 27. The mounting bracket 25 is mounted on the housing 1, and at least one accommodating groove is formed in the mounting bracket 25. The wiring portion is mounted in the accommodation groove by an insulating member 27.

In one illustrative embodiment, the mounting bracket 25 includes, but is not limited to, a concave structure configured as shown in fig. 1 and 3. In detail, the back plate of the mounting bracket 25 is fixed to an inner wall (left wall as shown in fig. 3) of the housing 1 facing the access opening. Further, the side of the mounting bracket 25 facing the opening of the housing 1 is provided with the above-described accommodation groove.

In an exemplary embodiment, a plurality of mounting brackets 25 may be spaced side by side within the housing 1, with one receiving slot being provided in each mounting bracket 25, as shown in fig. 1 for the lower mounting bracket 25.

In an exemplary embodiment, an upper mounting bracket 25 as shown in fig. 1 may be provided in the housing 1, with a mounting bracket 25 having a plurality of receiving slots provided in the mounting bracket 25.

Wherein the receiving groove includes, but is not limited to, a through groove structure configured to penetrate in a vertical direction as shown in fig. 3, so that the distribution cable 4 is led out upward or downward from the receiving groove.

In one illustrative embodiment, as shown in FIG. 1, the insulating member 27, which is made of an insulating material, includes, but is not limited to, being configured in a zig-zag configuration. In detail, one side of the insulating member 27 is mounted to the bottom of the receiving groove provided in the mounting bracket 25, and the other side is adapted to be coupled with the first coupling member (including, but not limited to, being screw-engaged with the screw so that the first coupling member is fixed to the insulating member 27).

Fig. 5 is a view showing a state in which the wiring device of the exemplary embodiment shown in fig. 1 is arranged on a body end wall of a railway vehicle.

According to the railway vehicle provided by the present disclosure, as shown in fig. 5, a junction device is configured, and a housing 1 of the junction device is mounted on a body end wall 6 of the railway vehicle.

According to an embodiment of the present disclosure, a rail vehicle is used as a trailer for a motor train consist.

In an exemplary embodiment, as shown in fig. 5, the housing 1 of the wiring installation is mounted on a body end wall 6 of the rail vehicle above the installation cabin.

According to the embodiment of the present disclosure, as shown in fig. 1 and 4, the housing 1 of the junction device has the embedded portion 11 located inside the vehicle body end wall 6 and the exposed portion 13 exposed to the outside of the vehicle body end wall 6. Wherein the exposed portion 13 is provided with an access opening.

In an exemplary embodiment, as shown in fig. 1 and 5, a flange 12 is provided at the middle of the outer wall surface of the case 1 to divide the case 1 at both sides of the flange into an embedded portion 11 and an exposed portion 13. In detail, one side surface (left side surface as shown in fig. 5) of the flange 12 is pressed against and fixed to the body end wall 6 such that the embedded portion 11 is located in the body end wall 6 and the exposed portion 13 and the access opening provided on the exposed portion 13 are located outside the body end wall 6.

In such an embodiment, the junction equipment is arranged on the body end wall 6 of the railway vehicle so that the connection positions of the bridge cable 5 and the junction cable 4 with the junction part are located outside the equipment compartment of the railway vehicle. Therefore, the equipment cabin is not required to be removed when the bridge cable 5 and the branching cable 4 are connected, so that the maintenance of workers is facilitated.

According to an embodiment of the present disclosure, as shown in fig. 5, the junction cable 4 connected to the junction device is configured to be led out from the housing 1 in a vertical direction to be electrically connected with in-vehicle devices located above the floor of the rail vehicle and/or in-vehicle devices located in the device cabin below the floor of the rail vehicle.

According to an embodiment of the present disclosure, as shown in fig. 5, a bridge cable 5 connected to the wiring device is configured to be led out from the housing 1 in a vertical direction.

In such an embodiment, the cable wires arranged in the vertical direction (i.e., up and down as shown in fig. 5) may extend in the general direction of the electrical devices (i.e., in-vehicle devices and off-vehicle devices) to be connected, which is advantageous for shortening the guiding distance to reduce the length of the cable wires arranged.

It should be further noted that, the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the drawings, and are not intended to limit the scope of the present disclosure. Like elements are denoted by like or similar reference numerals throughout the drawings. Conventional structures or constructions will be omitted when they may cause confusion in understanding the present disclosure.

The embodiments of the present disclosure are described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the embodiments cannot be used advantageously in combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the disclosure, and such alternatives and modifications are intended to fall within the scope of the disclosure.

Claims (16)

1. A wiring device configured in a rail vehicle, comprising:

a housing (1); and

wiring assembly (2) set up in casing (1), include:

the system comprises a plurality of wiring parts, wherein the access ends of the wiring parts are configured to be electrically connected with traction converters of the motor train consist through bridge passing cables (5) arranged between two adjacent car bodies of the motor train consist, and at least one part of the extraction ends of the wiring parts are configured to be electrically connected with in-car equipment and under-car equipment of the rail car.

2. The wiring device according to claim 1, characterized in that another part of the wiring assembly (2) is configured to be electrically connected with an in-car device or an off-car device of the rail vehicle.

3. The wiring device of claim 1, wherein the wiring portion comprises:

the first connecting piece is suitable for being electrically connected with the in-vehicle equipment and/or the off-vehicle equipment through a branching cable (4); and

-a second connection (23), one side of the second connection (23) being configured to be electrically connected to the first connection and the other side being configured to be connected to the bridge cable (5).

4. A wiring device according to claim 3, characterized in that the first connection member is provided with a connection terminal (261) adapted to be connected with the distribution cable (4) for electrical connection with the in-vehicle device or the off-vehicle device.

5. A wiring device according to claim 3, characterized in that the first connection member is provided with two connection terminals (261) adapted to connect the distribution cable (4) for electrical connection with the in-vehicle device and the off-vehicle device.

6. Junction device according to claim 5, characterized in that the two junction terminals (261) of the first connection piece are arranged facing away from each other, so that the two branch cables (4) connected to the first connection piece protrude from the housing (1) in directions facing away from each other.

7. Junction device according to claim 6, characterized in that the bridge cable (5) is configured to be arranged in a direction substantially parallel to the distribution cable (4).

8. The wiring device according to any one of claims 1 to 7, wherein the wiring assembly (2) further comprises a mounting portion adapted to be mounted on the housing (1) insulated from the wiring portion.

9. The junction apparatus according to claim 8, wherein said mounting portion comprises:

the mounting frame (25) is mounted on the shell (1), and at least one accommodating groove is formed in the mounting frame (25); and

and an insulating member (27), wherein the wiring part is mounted in the accommodating groove through the insulating member (27).

10. The junction device according to any one of claims 1 to 7, wherein the junction assembly (2) further comprises a hub connector (24) mounted to the end of the bridging cable (5) connected to the junction portion, adapted to connect the bridging cable (5) to the junction portion.

11. The wiring device according to any one of claims 1 to 7, further comprising a cover (3) openably mounted in an access opening formed in the housing (1).

12. A rail vehicle, characterized in that a wiring device as claimed in any one of claims 1 to 11 is provided, the housing (1) of which is mounted on a body end wall (7) of the rail vehicle.

13. The rail vehicle of claim 12, wherein the rail vehicle is used as a trailer for a motor train consist.

14. The rail vehicle of claim 12, characterized in that the housing (1) of the wiring device has an insert (11) located inside the body end wall (7) and an exposure (13) exposed to the outside of the body end wall (7);

wherein, the exposure part (13) is provided with an access hole.

15. Railway vehicle according to claim 12, characterized in that the distribution cable (4) connected to the junction device is configured to be led out of the housing (1) in a vertical direction for electrical connection with in-car devices located above the floor of the railway vehicle and/or in-car devices located in the device cabin below the floor of the railway vehicle.

16. Railway vehicle according to claim 15, characterized in that the bridge cable (5) connected to the junction device is configured to be led out of the housing (1) in a vertical direction.