Reversing crossover structure and reversing wiring structure for train and rail train

Abstract

The invention provides a reversing crossover structure for a train, a reversing wiring structure and a rail train. The reversing crossover structure comprises a first crossover layer, a second crossover layer, a sliding rail and a mounting assembly. The first crossover layer is configured to allow a high-voltage cable to pass through in a first direction, and the second crossover layer is stacked above the first crossover layer and configured to allow a low-voltage cable to pass through in a second direction perpendicular to the first direction. The sliding rail is fixedly connected to a train body and obliquely extends relative to the axis direction of the train body. The mounting assembly is configured to slidably connect the first crossover layer and the second crossover layer to the sliding rail in the second direction and lock the first crossover layer and the second crossover layer at any position of the sliding rail.

Description

Technical Field

[0001] The present disclosure relates to the field of train wiring technology and rail train technology, and more specifically, to a switching crossover structure for a train, a switching wiring structure and a rail train. Background Art

[0002] As an efficient and environmentally friendly public transportation tool, urban rail trains play an increasingly important role in the urban transportation system. With the acceleration of urbanization, problems such as dense population and traffic congestion are becoming increasingly prominent. Urban rail train technology has emerged as the times require, providing strong support for solving urban transportation problems.

[0003] Existing EMU trains are usually designed with bidirectional head cars to facilitate reverse travel and improve operating efficiency. In such a design, the high-voltage equipment side and the low-voltage equipment side at both ends of the entire train are often arranged in opposite directions. For example, in carriages 1-4, the high-voltage equipment is located on the left side of the central axis, and the low-voltage equipment is located on the right side of the central axis, while in carriages 6-10, the high-voltage equipment is located on the right side of the central axis, and the low-voltage equipment is located on the left side of the central axis. Therefore, carriage 5 is usually called a reversing car, and the cables need to be reversingly arranged at the bottom of carriage 5.

[0004] In the related technologies, since there are many devices and components in the lower part of the carriage, the cables are usually switched between the high and low voltage junction boxes after they reach the junction box. However, this will significantly increase the volume of the junction box, occupy a large space under the car, and cause the cables in the junction box to be complicated, which is not conducive to subsequent maintenance and inspection. There are also related technologies that use standard wire ducts or cavities to strictly perform routing and switching in accordance with the length and width of the train, which will cause the cables to have large turning angles, affecting the service life of the cables. At the same time, the cables are hidden in the wire ducts, which is not conducive to checking the cable status. Therefore, how to optimize the cable switching layout structure under the car has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of this, the present disclosure provides a switching crossover structure, a switching wiring structure and a rail train for a train, which can improve the wiring track and simplify the structure.

[0006] One aspect of the present disclosure provides a reversing crossover structure for a train, comprising: a first crossover layer, configured to allow high-voltage cables to pass through in a first direction; a second crossover layer, stacked above the first crossover layer, configured to allow low-voltage cables to pass through in a second direction perpendicular to the first direction; a slide rail, fixedly connected to a train body and extending obliquely relative to the axial direction of the train body; and a mounting assembly, configured to slidably connect the first crossover layer and the second crossover layer to the slide rail in the second direction and lock them at any position of the slide rail.

[0007] According to an embodiment of the present disclosure, the above-mentioned first crossover layer includes: a first base plate, suitable for carrying the above-mentioned high-voltage cable; a first mounting portion, extending upward from both sides of the above-mentioned first base plate, suitable for connecting the above-mentioned mounting assembly; a clearance hole is opened on the above-mentioned first mounting portion to allow the above-mentioned high-voltage cable to pass through in the above-mentioned first direction.

[0008] According to an embodiment of the present disclosure, the second crossover layer includes: a second bottom plate, located above the first bottom plate, suitable for carrying the low-voltage cable; a second mounting portion, extending upward from both sides of the second bottom plate, suitable for connecting the mounting assembly.

[0009] According to an embodiment of the present disclosure, after the first mounting portion extends upward from both sides of the first base plate, it also extends along a horizontal plane into the first base plate; after the second mounting portion extends upward from both sides of the second base plate, it also extends along a horizontal plane outward from the second base plate; wherein the end of the first mounting portion and the end of the second mounting portion are overlapped in the vertical direction so as to be installed on the slide rail through the mounting assembly.

[0010] According to an embodiment of the present disclosure, the above-mentioned slide rail includes: a base plate, which is configured as a long strip and connected to the lower part of the train body; two side panels, the cross-section of the above-mentioned side panels is configured to be L-shaped, and the two above-mentioned side panels are symmetrically arranged on both sides of the lower surface of the above-mentioned base plate to form a T-shaped through groove with the above-mentioned base plate.

[0011] According to an embodiment of the present disclosure, the above-mentioned mounting assembly includes: a bolt, the head of the above-mentioned bolt is mounted on the horizontal sections of the two above-mentioned L-shaped side plates, and the tail of the above-mentioned bolt passes through the gap between the two above-mentioned L-shaped side plates to reciprocate along the above-mentioned T-shaped through groove; a nut, which is configured to be threadedly connected with the above-mentioned bolt to press the above-mentioned first crossover layer and the above-mentioned second crossover layer against the horizontal sections of the above-mentioned L-shaped side plates.

[0012] According to an embodiment of the present disclosure, the above-mentioned installation assembly also includes a gasket, which is clamped between the head of the above-mentioned bolt and the horizontal section of the above-mentioned L-shaped side plate to move synchronously with the above-mentioned bolt. The above-mentioned gasket is constructed as a U-shaped gasket, which is suitable for accommodating the head of the above-mentioned bolt and limiting the rotation of the above-mentioned bolt.

[0013] Another aspect of the present disclosure provides a switching wiring structure for a train, comprising: two high-voltage ends, arranged at intervals along the axial direction of the train body, and respectively located on both sides of the above-mentioned axis, and connected to each other through a high-voltage cable; two low-voltage ends, arranged at intervals along the above-mentioned axis, and respectively symmetrically arranged with each of the above-mentioned high-voltage ends about the above-mentioned axis, and connected to each other through a low-voltage cable; and a switching crossover structure as in any of the above-mentioned embodiments, installed at an angle to the bottom of the train body relative to the above-mentioned axis, suitable for guiding the above-mentioned high-voltage cables and the above-mentioned low-voltage cables to cross-switch.

[0014] According to an embodiment of the present disclosure, a chassis is arranged under the body of the above-mentioned train, and the above-mentioned chassis includes a bolster arranged along the width direction of the train. The above-mentioned bolster is provided with two crossover through holes, which are respectively used to guide the high-voltage cables and low-voltage cables from the above-mentioned reversing crossover structure.

[0015] According to an embodiment of the present disclosure, a sleeve is welded on the inner wall of the crossover through hole, and a crossover bracket is arranged near the opening of the crossover through hole, which is suitable for supporting high-voltage cables and low-voltage cables to enter the crossover through hole.

[0016] According to an embodiment of the present disclosure, the above-mentioned base frame also includes a traction beam, which is configured in a Y shape and extends along the above-mentioned axial direction. The above-mentioned reversing wiring structure also includes a crossover portion arranged on both sides of the above-mentioned traction beam along the above-mentioned width direction, which is suitable for guiding high-voltage cables and low-voltage cables from the above-mentioned crossover through hole.

[0017] According to an embodiment of the present disclosure, the crossover portion is configured to extend along an outer contour of the traction beam.

[0018] According to an embodiment of the present disclosure, it also includes a junction box, which is arranged at the above-mentioned high-voltage end and / or the above-mentioned low-voltage end. After the above-mentioned high-voltage cable or the above-mentioned low-voltage cable enters the above-mentioned junction box, one part is connected to the internal equipment of the vehicle body, and the other part is connected to the cables of adjacent carriages.

[0019] According to an embodiment of the present disclosure, the above-mentioned distribution box includes: a box body, on which a plurality of wire holes are opened for the above-mentioned high-voltage cables or the above-mentioned low-voltage cables to pass through; a terminal block, which is arranged in the above-mentioned box body. After the above-mentioned high-voltage cables or the above-mentioned low-voltage cables enter the above-mentioned box body, they are connected to the above-mentioned terminal block through crimping terminals to be connected to the internal equipment of the vehicle body or to the cables of adjacent carriages.

[0020] Another aspect of the present disclosure provides a rail vehicle, comprising: a vehicle body and a chassis, and also comprising a switching wiring structure as in any of the above embodiments, arranged between the vehicle body and the chassis.

[0021] The reversing crossover structure, reversing wiring structure and rail train provided by the present disclosure use the first crossover layer and the second crossover layer to realize the cross-reversal of high and low voltage cables. By making the first direction perpendicular to the second direction and making the second direction inclined relative to the axis direction of the train body, the turning angle of the cable can be effectively reduced when the high voltage cable and the low voltage cable merge into the reversing crossover structure for reversing, and it is also beneficial for the cable to return to the extension direction parallel to the axis after reversing, so that the cable layout of the lower part of the entire reversing car is smoother, the difficulty of wiring operation is reduced, and the inspection and maintenance are convenient, and the service life of the cable is increased. In addition, the reversing arrangement at the train junction box is omitted, which effectively saves the space under the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0023] Figure 1 It is a stereoscopic diagram of a reversing crossover structure provided by the present disclosure;

[0024] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the reversing crossover structure without the slide rail in the exemplary embodiment shown;

[0025] Figure 3 is a three-dimensional structural diagram of the reversing crossover structure provided by the present disclosure at another angle;

[0026] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0027] Figure 5 is a partial cross-sectional view of the reversing crossover structure provided by the present disclosure, showing the slide rail and the mounting assembly;

[0028] Figure 6 is a schematic diagram of a reversing crossover structure provided by the present disclosure when it is arranged at the bottom of a vehicle body;

[0029] Figure 7 It is a three-dimensional schematic diagram of a commutation wiring structure for a train provided by the present disclosure;

[0030] Figure 8 yes Figure 7 An enlarged view of the commutation crossover structure in the exemplary embodiment shown;

[0031] Fig. 9 yes Figure 7 A schematic plan view of the corbel in the exemplary embodiment shown;

[0032] Fig.10 yes Figure 7 A three-dimensional structural diagram of a crossover portion in the exemplary embodiment shown;

[0033] Fig.11 yes Figure 7 A three-dimensional structural diagram of a junction box in the exemplary embodiment shown;

[0034] Fig.12 yes Fig.11 Schematic diagram of the internal structure of the central junction box.

[0035] In the drawings, the meanings of the reference numerals are as follows:

[0036] 100, chassis;

[0037] 101. Pillow beam;

[0038] 102. Traction beam;

[0039] 1. High voltage end;

[0040] 2. Low-pressure end;

[0041] 3. Reversing crossover structure;

[0042] 31. The first crossover layer;

[0043] 311, first bottom plate;

[0044] 312, first mounting portion;

[0045] 32. The second crossover layer;

[0046] 321, second bottom plate;

[0047] 322, second mounting portion;

[0048] 33. Slide rail;

[0049] 331. Substrate;

[0050] 332, side panels;

[0051] 34. Install components;

[0052] 341. Bolts;

[0053] 342, nut;

[0054] 343, pad;

[0055] 4. Crossover through hole;

[0056] 5. Crossover bracket;

[0057] 6. Crossover;

[0058] 7. Junction box;

[0059] 71. Box;

[0060] 72. Terminal block. DETAILED DESCRIPTION

[0061] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0062] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0063] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0064] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0065] Figure 1 is a stereoscopic diagram of a reversing crossover structure provided by the present disclosure, Figure 2 yes Figure 1 The three-dimensional schematic diagram of the reversing crossover structure without the slide rail in the exemplary embodiment shown, Figure 3 is a three-dimensional structural diagram of the reversing crossover structure provided by the present disclosure from another angle, Figure 4 yes Figure 3 A partial enlarged view of the middle A. Figure 5 is a partial cross-sectional view of the reversing crossover structure provided by the present disclosure, showing the slide rail and the mounting assembly, Figure 6 It is a schematic diagram of the reversing crossover structure provided by the present disclosure when it is arranged at the bottom of the vehicle body.

[0066] An exemplary embodiment of the present disclosure provides a switching crossover structure for a train, such as Figure 1-Figure 6As shown, it includes a first crossover layer 31, a second crossover layer 32, a slide rail 33 and a mounting assembly 34. The first crossover layer 31 is configured to allow high-voltage cables to pass in a first direction, and the second crossover layer 32 is stacked above the first crossover layer 31 and is configured to allow low-voltage cables to pass in a second direction perpendicular to the first direction. The slide rail 33 is fixedly connected to the train body and extends obliquely relative to the axial direction of the train body. The mounting assembly 34 is configured to slidably connect the first crossover layer 31 and the second crossover layer 32 to the slide rail 33 in the second direction and lock them at any position of the slide rail 33.

[0067] In such an embodiment, the reversing crossover structure is fixedly connected to the body of the reversing carriage by means of a slide rail 33. The first crossover layer 31 and the second crossover layer 32 are slid on the slide rail 33 through the installation assembly 34 to adjust the installation position, and are locked at a preset position. The high-voltage cable from the front carriage is located on the first side of the axis of the train body, and transitions to the second side after passing through the first crossover layer 31 along the first direction. The low-voltage cable from the front carriage is located on the second side of the axis of the train body, and transitions to the second side after passing through the second crossover layer 32 along the second direction, thereby realizing the reversal of the high and low voltage cables of the train. By making the first direction perpendicular to the second direction, and making the second direction a direction inclined relative to the axis direction of the train body, the turning angle of the cable can be effectively reduced when the high-voltage cable and the low-voltage cable merge into the reversing crossover structure for reversing, and after the cross reversing, there is enough margin space to allow the high-voltage / low-voltage cable to extend again to be parallel to the axis of the body, and the cable layout of the entire lower part of the reversing carriage is smoother, reducing the difficulty of wiring operation and improving the service life of the cable. In addition, by using a reversing crossover structure, the reversing arrangement at the train junction box is eliminated, effectively saving the space under the car.

[0068] In an exemplary embodiment, Figure 3 and Figure 4 As shown, the first crossover layer 31 includes a first bottom plate 311 and a first mounting portion 312. The first bottom plate 311 is suitable for carrying high-voltage cables. The first mounting portion 312 extends upward from both sides of the first bottom plate 311 and is suitable for connecting the mounting assembly 34. The first mounting portion 312 is provided with a clearance hole to allow the high-voltage cable to pass in the first direction.

[0069] In such an embodiment, the first base plate 311 extends along the second direction, and the first mounting portion 312 is a first mounting plate extending upward from both sides of the first base plate 311. Each first mounting plate is formed with a clearance hole to connect in the first direction for high-voltage cables to pass through.

[0070] Further Figure 2 and Figure 3As shown, the clearance holes divide each first mounting plate into two first sub-mounting plates, so as to increase the cable accommodation capacity and facilitate production and processing. More specifically, the length of the first bottom plate 311 in the second direction is about 6-8 times the length of the first self-mounting plate in the second direction.

[0071] In some other embodiments, a plurality of positioning holes spaced apart along the second direction are formed near both sides of the first bottom plate 311 for cable ties to fix the cables on the first bottom plate 311 .

[0072] In an exemplary embodiment, the second crossover layer 32 includes a second bottom plate 321 and a second mounting portion 322. The second bottom plate 321 is located above the first bottom plate 311 and is suitable for carrying low-voltage cables. The second mounting portion 322 extends upward from both sides of the second bottom plate 321 and is suitable for connecting the mounting assembly 34.

[0073] In such an embodiment, the second base plate 321 also extends along the second direction, and the second mounting portion 322 is a second mounting plate extending upward from both sides of the second base plate 321. The two second mounting plates and the second base plate 321 together form a channel for the low-voltage cable to pass through along the second direction.

[0074] In some other exemplary embodiments, a plurality of positioning holes spaced apart along the first direction are formed near two ends of the second bottom plate 321 in the second direction, so as to allow cable ties to fix cables to the second bottom plate 321 .

[0075] According to the embodiment of the present disclosure, after the first mounting portion 312 extends upward from both sides of the first bottom plate 311, it also extends along the horizontal plane toward the inside of the first bottom plate 311. After the second mounting portion 322 extends upward from both sides of the bottom plate 321, it also extends along the horizontal plane toward the outside of the second bottom plate 321. The end of the first mounting portion 312 overlaps the end of the second mounting portion 322 in the vertical direction and has been mounted on the slide rail 33 through the mounting assembly 34.

[0076] In such an implementation, Figure 2 and Figure 3 As shown, the width dimension of the second bottom plate 321 in the first direction is smaller than the width dimension of the first bottom plate 311 in the first direction. The first mounting portion 312, that is, the two first mounting plates in the above embodiment extend upward and then extend in the first direction toward each other. The second mounting portion 322, that is, the two second mounting plates in the above embodiment extend upward and then extend in the first direction toward each other away. Until the end of the first mounting portion 312 and the end of the second mounting portion 322 overlap in the vertical direction, forming the installation position of the mounting assembly 34.

[0077] It should be noted that, in order to ensure that there is enough space for cables to pass through and the cables are arranged in an aesthetically pleasing manner, the height H of the first mounting portion 312 extending upwards needs to be higher than the height h of the second mounting portion 322 extending upwards, preferably H≥2h. In order to ensure the structural strength of the connection between the first mounting portion 312, the second mounting portion 322 and the mounting assembly 34, the length of the first mounting portion 312 extending along the first direction and the length of the second mounting portion 322 extending along the first direction are preferably equal.

[0078] In some other embodiments, the first base plate 311 and the first mounting portion 312 are manufactured by integral molding, and the second base plate 321 and the second mounting portion 322 are also manufactured by integral molding, and are both made of aluminum material, which more effectively improves the electromagnetic shielding performance at the intersection of high-voltage cables and low-voltage cables.

[0079] In an exemplary embodiment, the slide rail 33 includes a base plate 331 and two side plates 332. The base plate 331 is configured as a long strip and connected to the lower part of the train body, and the cross section of the side plate 332 is configured as an L shape, and the two side plates are symmetrically arranged on both sides of the lower surface of the base plate 331 to form a T-shaped through groove with the base plate 331.

[0080] In such an implementation, Figure 5 As shown, the base plate 331 of the slide rail 33 extends obliquely relative to the axial direction of the train body, and the L-shaped side plate 332 includes a vertical section and a horizontal section, and a preset spacing is left between the two horizontal sections to allow the mounting assembly 34 to slide in the T-shaped through groove and connect the first crossover layer 31 and the second crossover layer 32 through the preset spacing.

[0081] Specifically, the base plate 331 and the two L-shaped side plates 332 are manufactured by integral molding, and the material is preferably aluminum.

[0082] According to an embodiment of the present disclosure, the mounting assembly 34 includes a bolt 341 and a nut 342. The head of the bolt 341 is mounted on the horizontal sections of the two L-shaped side plates 332, and the tail of the bolt 341 passes through the gap between the two L-shaped side plates to reciprocate along the T-shaped through groove. The nut 342 is configured to be threadedly connected with the bolt 341 to press the first crossover layer 31 and the second crossover layer 32 against the horizontal section of the L-shaped side plate 332.

[0083] In such an implementation, Figure 4 and Figure 5As shown, the head of the bolt 341 is located in the T-shaped through slot, the tail of the bolt 341 passes through the gap between the two L-shaped side plates 332, and simultaneously passes through the first mounting portion 312 and the second mounting portion 322, and the nut 342 is threadedly connected with the bolt 341 from bottom to top, so that the first mounting portion 312, the second mounting portion 322 and the horizontal section of the L-shaped side plate are pressed between the head of the bolt 341 and the nut 342. By continuously tightening the nut 342, while limiting the vertical displacement of the first crossover layer 31 and the second crossover layer 32, the friction between the bolt 341 and the L-shaped side plate, and between the L-shaped side plate and the second crossover layer 32 is increased, so as to prevent the slide from deviating from the preset position along the slide rail 33.

[0084] Exemplarily, circular holes for the bolts 341 to pass through are provided on the horizontally extending portions of the first mounting portion 312 and the second mounting portion 322, and the number of the holes is preferably 3-5, so as to ensure reliable connection while reducing installation complexity.

[0085] Furthermore, the mounting assembly 34 also includes a pad 343, which is clamped between the head of the bolt 341 and the horizontal section of the L-shaped side plate 332 to move synchronously with the bolt 341. The pad 343 is constructed as a U-shaped pad, which is suitable for accommodating the head of the bolt 341 and limiting the rotation of the bolt 341.

[0086] In such an embodiment, a circular hole for the bolt 341 to pass through is also formed on the pad 343, and the tail of the bolt 341 passes through the pad 343, the gap between the two L-shaped side plates, the second mounting portion 322, and the first mounting portion 312 in sequence. By making the pad 343 directly slide in contact with the slide rail 33, compared with the direct sliding contact between the bolt 341 and the slide rail 33, the contact area is larger, and the uniformity of the force on the slide rail 33 is improved. At the same time, the pad 343 is a U-shaped pad, which can limit the bolt 341 in the U-shaped recess to prevent the bolt 341 from rotating when the nut 342 is screwed.

[0087] In some other embodiments, the width of the pad 343 is slightly smaller than the spacing between the vertical sections of the two L-shaped side panels to reduce sliding resistance. The length of the pad 343 is greater than the spacing between the vertical sections of the two L-shaped side panels to prevent the pad 343 from rotating in the T-shaped through slot.

[0088] Figure 7 is a three-dimensional schematic diagram of a commutation wiring structure for a train provided by the present disclosure, Figure 8 yes Figure 7 An enlarged view of the switching crossover structure in the exemplary embodiment shown, Fig. 9 yes Figure 7 A schematic plan view of the bolster in the exemplary embodiment shown, Fig.10 yes Figure 7The three-dimensional structural diagram of the crossover portion in the exemplary embodiment shown, Fig.11 yes Figure 7 The three-dimensional structural diagram of the junction box in the exemplary embodiment shown, Fig.12 yes Fig.11 Schematic diagram of the interior of the center junction box.

[0089] The exemplary embodiment of the present disclosure also provides a switching wiring structure for a train, such as Figure 7 and Figure 8 As shown, it includes two high-voltage terminals 1, two low-voltage terminals 2 and a reversing crossover structure 3 as in any of the above embodiments. The two high-voltage terminals 1 are arranged at intervals along the axis of the train body, and are respectively located on both sides of the axis, and are connected to each other through high-voltage cables. The two low-voltage terminals 2 are arranged at intervals along the axis, and are respectively arranged symmetrically with each high-voltage terminal 1 about the axis, and the two low-voltage terminals 2 are connected through low-voltage cables. The reversing crossover structure 3 is installed at the bottom of the train body at an angle relative to the axis, and is suitable for guiding the high-voltage cables and the low-voltage cables to cross-reverse.

[0090] The reversing wiring structure according to the embodiment of the present disclosure can be applied to a rail train including a bidirectional head car, so that the rail train can travel in both directions and improve the operation efficiency. The high-voltage equipment side and the low-voltage equipment side at both ends of the whole rail train are arranged in opposite directions. For example, in the 1-4 carriages, the high-voltage equipment is located on the left side of the central axis, and the low-voltage equipment is located on the right side of the central axis, while in the 6-10 carriages, the high-voltage equipment is located on the right side of the central axis, and the low-voltage equipment is located on the left side of the central axis. Therefore, the 5th carriage is usually called a reversing car, and the reversing wiring structure according to the embodiment of the present disclosure is installed at the bottom of the 5th carriage to reversing the cable arrangement. In this way, when the operator stands on the track and observes the rail train in the direction of travel, no matter which end of the two ends of the rail train is observed, the positional relationship of the high-voltage equipment and the low-voltage equipment relative to the central axis seen by the operator is the same, for example, the high-voltage equipment is located on the right side of the central axis, and the low-voltage equipment is located on the left side of the central axis; or the low-voltage equipment is located on the right side of the central axis, and the high-voltage equipment is located on the left side of the central axis, so that it is not easy to confuse the operator, and avoid misoperation due to misidentification of the high-voltage equipment and the low-voltage equipment.

[0091] In such an implementation, Figure 7 As shown, the high-voltage end 1 and the low-voltage end 2 located on the left side of the reversing crossover structure 3 are high-voltage cable and low-voltage cable ports from the front car, which can be the end of a cable-type slot or a junction box, which is not specifically limited here. By arranging the reversing crossover structure 3 at an angle and making the high-voltage cable and the low-voltage cable cross-reversed perpendicular to each other, not only the space required for wiring is saved and the wiring scheme is simplified, but also the cable can be reversed as smoothly as possible, thereby extending the service life of the cable.

[0092] According to an embodiment of the present disclosure, a chassis 100 is arranged under the body of the train, and the chassis 100 includes a bolster 101 arranged along the width direction of the train. The bolster 101 is provided with two crossover through holes 4, which are respectively used to guide high-voltage cables and low-voltage cables from the reversing crossover structure 3.

[0093] In such an implementation, Figure 8 and Fig. 9 As shown, the high voltage cable passes through the first crossover layer 31 and enters the vicinity Figure 8 The crossover hole 4 above, the low voltage cable progresses through the second crossover layer 32 close to Figure 8 The crossover through hole 4 on the right side is set in such a way that the undercarriage structure, i.e., the bolster 101, is effectively used for wiring, avoiding the setting of too many wire troughs or slide rails 33. In addition, since the bolster 101 is arranged along the width direction of the train, the crossover through hole 4 extends along the axis direction of the train, so that the high-voltage / low-voltage cable extends along the axis direction immediately after passing through the bolster 101, which is convenient for maintenance and saves the length of the cable.

[0094] In an exemplary embodiment, a sleeve is welded on the inner wall of the crossover through hole 4 , and a crossover support 5 is arranged near the opening of the crossover through hole 4 , which is suitable for supporting high-voltage cables and low-voltage cables to enter the crossover through hole 4 .

[0095] In such an embodiment, a sleeve is welded inside the crossover through hole 4 to prevent the occurrence of metal burrs or protrusions on the inner surface of the bolster 101 due to uncertainties in the processing process when the crossover through hole 4 is opened, thereby damaging the cable. In addition, the crossover through hole 4 is usually opened at the center of the bolster 101, so the cable may be affected by the edge of the crossover through hole 4 due to height issues when entering. By arranging a crossover bracket 5 near the opening of the crossover through hole 4, additional support is provided for the cable to further protect the cable.

[0096] For example, Fig. 9 The crossover bracket 5 shown has a surface provided with positioning holes for arranging cable ties to fix the cables. At the same time, the edges of the crossover bracket 5 can be chamfered to be rounded to reduce the impact on the cables.

[0097] In an exemplary embodiment, Fig.10 As shown, the chassis 100 also includes a traction beam 102, which is constructed in a Y shape and extends along the axial direction. The switching wiring structure also includes a crossover portion 6 arranged on both sides of the traction beam along the width direction of the train, which is suitable for guiding high-voltage cables and low-voltage cables from the crossover through hole 4.

[0098] In such an embodiment, the crossover 6 is installed at the bottom of the train body, and the installation principle is the same as that of the reversing crossover structure 3, which will not be described in detail here. In addition, the crossover 6 is integrally die-casted with non-metallic materials, which reduces the weight of the structure while having good electromagnetic shielding performance and high structural strength.

[0099] For example, Fig.10 As shown, the crossover portion 6 is also provided with a plurality of positioning holes for arranging cable ties so as to fix the cables by the cable ties.

[0100] According to an embodiment of the present disclosure, the crossover portion 6 is configured to extend along the outer contour of the traction beam 102 .

[0101] In such an embodiment, the extension direction of the crossover portion 6 is consistent with the outer contour of the traction beam 102. More specifically, it extends from the independent end of the Y shape to the forked end. Such a configuration can avoid the bogie, wheelset and other structures under the train body, and the Y-shaped contour of the traction beam is more neat and beautiful.

[0102] In an exemplary embodiment, the above-mentioned reversing wiring structure also includes a junction box 7, which is arranged at the high-voltage end and / or the low-voltage end 2. After the high-voltage cable or the low-voltage cable enters the junction box 7, one part is connected to the internal equipment of the vehicle body, and the other part is connected to the cable of the adjacent car.

[0103] In such an embodiment, the junction box 7 can be detachably connected to the bottom of the train body. By setting up the junction box 7, the connection and disconnection of the cables are concentrated at the junction box 7, which can facilitate inspection and maintenance. In addition, the junction box 7 can play a protective role in isolating the external environment, such as blocking wind, sand, rain and snow, and can also provide a certain shielding ability to reduce interference from external signals. In addition, overload protection, short-circuit protection and other devices in the cable path can also be centrally arranged in the junction box 7.

[0104] According to the implementation of the present disclosure, the junction box 7 includes a box body 71 and a terminal block 72. The box body 71 is provided with a plurality of wire holes for high-voltage cables or low-voltage cables to pass through. The terminal block 72 is arranged in the box body 71. After the high-voltage cable or the low-voltage cable enters the box body 71, it is connected to the terminal block 72 through a crimping terminal to be connected to the internal equipment of the vehicle body or the cable of the adjacent carriage.

[0105] In such an embodiment, after the cable enters the box 71 through the cable hole, it must first be fastened to the crimping terminal, and then the crimping terminal is fixed to the terminal block, so as to be electrically connected to the crimping terminal on the other side of the terminal block and the cable of the internal equipment of the vehicle body or the cable of the adjacent car. This facilitates modular and standardized layout and connection, and facilitates subsequent inspection and maintenance.

[0106] In some other embodiments, high-voltage cables or low-voltage cables are concentrated on one side of the box body 71 and enter the box body 71. In this embodiment, a detachable back plate is provided on the side, and the wire entry holes are all provided on the back plate, and a cable locking interface is also provided at the wire entry hole. When the junction box 7 is removed from the vehicle body for inspection, the connection between the crimping terminal and the terminal block 72 must be disconnected first. Due to the large size of the crimping terminal, it is often difficult to extract it from the wire entry hole and the cable locking interface. Therefore, the connection between the cable and the crimping terminal can only be shortened, and then the cable can be extracted separately. By setting a detachable back plate, after the crimping terminal is separated from the terminal block 72, the back plate is removed, and the cable can be separated from the junction box 7 together with the crimping terminal, avoiding the waste of cable caused by cutting the cable and the process of re-tightening the connection with the crimping terminal; after the inspection of the junction box 7 is completed, the back plate is installed again, and the crimping terminal and the terminal block 72 are reconnected. In addition, by adopting a detachable back plate, when facing different incoming line requirements, only different back plates need to be designed and replaced, and other parts of the junction box 7 can be designed in a standardized manner, thereby reducing production costs and improving economy.

[0107] An exemplary embodiment of the present disclosure further provides a rail vehicle, including a vehicle body and a base frame 100 , and also including a switching wiring structure in any of the above embodiments, which is arranged between the vehicle body and the base frame 100 .

[0108] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0109] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A switching crossover structure for a train, characterized in that: include: A first crossover layer (31) configured to allow high-voltage cables to pass through in a first direction; A second crossover layer (32), stacked on the first crossover layer (31), configured to allow low-voltage cables to pass through in a second direction perpendicular to the first direction; A slide rail (33) is fixedly connected to the train body and extends obliquely relative to the axial direction of the train body; The mounting assembly (34) is configured to slidably connect the first crossover layer (31) and the second crossover layer (32) to the slide rail (33) in the second direction, and to lock the slide rail (33) at any position.

2. The reversing crossover structure according to claim 1, characterized in that: The first crossover layer (31) comprises: A first bottom plate (311), suitable for carrying the high-voltage cable; The first mounting portion (312) extends upward from both sides of the first bottom plate (311) and is suitable for connecting to the mounting assembly (34); a clearance hole is provided on the first mounting portion (312) to allow the high-voltage cable to pass through in the first direction.

3. The reversing crossover structure according to claim 2, characterized in that: The second crossover layer (32) comprises: A second bottom plate (321), located above the first bottom plate (311), suitable for carrying the low-voltage cable; The second mounting portion (322) extends upward from two sides of the second bottom plate (321) and is suitable for connecting to the mounting assembly (34).

4. The reversing crossover structure according to claim 3, characterized in that: After the first mounting portion (312) extends upward from both sides of the first bottom plate (311), it also extends along a horizontal plane into the first bottom plate (311); After the second mounting portion (322) extends upward from both sides of the second base plate (321), it also extends outside the second base plate (321) along a horizontal plane; wherein the end of the first mounting portion (312) and the end of the second mounting portion (322) are overlapped in the vertical direction so as to be mounted on the slide rail (33) through the mounting assembly (34).

5. The commutation crossover structure according to any one of claims 1 to 4, characterized in that: The slide rail (33) comprises: The base plate (331) is configured in a long strip shape and connected to the lower part of the train body; Two side plates (332), the cross-section of the side plates (332) being configured to be L-shaped, and the two side plates (332) being symmetrically arranged on both sides of the lower surface of the base plate (331) to form a T-shaped through groove with the base plate (331).

6. The reversing crossover structure according to claim 5, characterized in that: The mounting assembly (34) comprises: A bolt (341), wherein the head of the bolt (341) is mounted on the horizontal sections of the two L-shaped side plates (332), and the tail of the bolt (341) passes through the gap between the two L-shaped side plates (332) to reciprocate along the T-shaped through slot; The nut (342) is configured to be threadedly connected to the bolt (341) so as to press the first crossover layer (31) and the second crossover layer (32) against the horizontal section of the L-shaped side plate (332).

7. The reversing crossover structure according to claim 6, characterized in that: The mounting assembly (34) further comprises a cushion block (343) which is clamped between the head of the bolt (341) and the horizontal section of the L-shaped side plate (332) so as to move synchronously with the bolt (341); the cushion block (343) is constructed as a U-shaped cushion block and is suitable for accommodating the head of the bolt (341) and limiting the rotation of the bolt (341).

8. A commutation wiring structure for a train, characterized in that: include: Two high-voltage ends (1) are arranged at intervals along the axis of the train body and are respectively located on both sides of the axis and are connected to each other via a high-voltage cable; Two low-voltage ends (2) are arranged at intervals along the axis direction and are symmetrically arranged with respect to each of the high-voltage ends (1) about the axis, and the two low-voltage ends (2) are connected via a low-voltage cable; as well as The reversing crossover structure (3) according to any one of claims 1 to 7 is installed on the bottom of the train body at an angle relative to the axis, and is suitable for guiding the high-voltage cable and the low-voltage cable to cross and reverse.

9. The switching wiring structure according to claim 8, characterized in that: An underframe (100) is arranged below the body of the train, the underframe (100) comprising a bolster (101) arranged along the width direction of the train, the bolster (101) being provided with two crossover through holes (4) for guiding high-voltage cables and low-voltage cables from the reversing crossover structure (3), respectively.

10. The switching wiring structure according to claim 9, characterized in that: A sleeve is welded on the inner wall of the crossover through hole (4), and a crossover support (5) is provided near the opening of the crossover through hole (4), which is suitable for supporting high-voltage cables and low-voltage cables to enter the crossover through hole (4).

11. The switching wiring structure according to claim 9, characterized in that: The chassis (100) further comprises a traction beam (102), the traction beam (102) being configured in a Y shape and extending along the axial direction, and the reversing wiring structure further comprises crossover portions (6) arranged on both sides of the traction beam along the width direction, suitable for guiding high-voltage cables and low-voltage cables from the crossover through hole (4).

12. The switching wiring structure according to claim 11, characterized in that: The crossover portion (6) is configured to extend along an outer contour of the traction beam (102).

13. The commutation wiring structure according to any one of claims 8 to 12, characterized in that: It also includes a junction box (7) disposed at the high-voltage end (1) and / or the low-voltage end (2); after the high-voltage cable or the low-voltage cable enters the junction box (7), a portion of the cable is connected to equipment inside the vehicle body, and another portion is connected to cables in adjacent carriages.

14. The switching wiring structure according to claim 13, characterized in that: The junction box (7) comprises: A box body (71), wherein a plurality of wire holes are provided on the box body (71) for the high-voltage cable or the low-voltage cable to pass through; A terminal block (72) is arranged in the box (71); after the high-voltage cable or the low-voltage cable enters the box (71), it is connected to the terminal block (72) via a crimping terminal to be connected to equipment inside the vehicle body or to cables in adjacent carriages.

15. A rail train, comprising a vehicle body and an underframe (100), characterized in that: It also comprises a reversing wiring structure as claimed in any one of claims 8 to 14, arranged between the vehicle body and the chassis (100).

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