High and low voltage cable crossing structure for rail vehicles and rail vehicles

Abstract

This invention relates to the field of vehicle cabling technology, and more particularly to a cross-wiring structure for high and low voltage cables in rail vehicles and the rail vehicle itself. By installing a high-voltage box and a low-voltage box on the surface of the vehicle body, connecting the high-voltage box and the low-voltage box to a cavity within the vehicle body, high-voltage cables are connected from the outside of the vehicle body to the high-voltage box, and then from the high-voltage box to the inside of the vehicle. Similarly, low-voltage cables are connected from the outside of the vehicle body to the high-voltage box, passing through the cavity within the high-voltage box, and then from the low-voltage box to the inside of the vehicle. This arrangement allows the high-voltage cables outside the high-voltage box to cross with the low-voltage cables inside the cavity. In this way, the high-voltage and low-voltage cables are isolated and shielded by the cavity within the vehicle body, avoiding electromagnetic interference when the high-voltage and low-voltage cables cross, ensuring normal signal transmission. Furthermore, the high-voltage and low-voltage boxes provide space for wiring within the vehicle body, simplifying the wiring method, facilitating maintenance, and achieving consistency in wiring methods across different vehicles.

Description

Technical Field

[0001] This invention relates to the field of vehicle cable technology, and in particular to a cross-wiring structure for high and low voltage cables in rail vehicles and the rail vehicle itself. Background Technology

[0002] In rail vehicles, the positions of high-voltage and low-voltage cables must be interchanged within a single vehicle, inevitably leading to cable crossings. Most rail vehicles have cables located on the roof, where high-voltage and low-voltage cables also cross. Due to the lack of effective electromagnetic shielding between the cables, they are prone to mutual electromagnetic interference, hindering signal transmission. Traditional cable routing methods are inconvenient for construction and operation, and the limited roof space means that the overlapping and crossing of cables can easily exceed the available roof space, making cable layout and maintenance difficult. Summary of the Invention

[0003] This invention provides a structure for the cross-traffic of high and low voltage cables in rail vehicles and a rail vehicle in general, in order to solve the defect of electromagnetic interference caused by the cross-traffic of high and low voltage cables in rail vehicles in the prior art, and to realize the reasonable cross-traffic of high and low voltage cables in rail vehicles.

[0004] This invention provides a cross-wiring structure for high and low voltage cables in rail vehicles, comprising:

[0005] A high-pressure box and a low-pressure box, wherein the high-pressure box and the low-pressure box are respectively disposed on the surface of the vehicle body and connected to the vehicle body cavity;

[0006] High-voltage cables are connected from the outside of the vehicle body to the high-voltage box.

[0007] The low-voltage cable is connected from the outside of the vehicle body to the inside of the high-voltage box, and passes through the cavity of the vehicle body to connect to the low-voltage box.

[0008] The high-voltage cables located outside the high-voltage box are arranged to cross with the low-voltage cables located inside the vehicle body cavity.

[0009] According to one embodiment of the present invention, the high-voltage box is provided with a first wiring hole and a second wiring hole, the first wiring hole penetrating through the vehicle body and communicating into the vehicle body, and the second wiring hole communicating into the vehicle body cavity; the low-voltage box is provided with a third wiring hole, the third wiring hole penetrating through the vehicle body and communicating into the vehicle body cavity;

[0010] The high-voltage cable passes through the first wiring hole and connects to the vehicle body;

[0011] The low-voltage cable passes through the second wiring hole, the vehicle body cavity, and the third wiring hole in sequence and connects to the low-voltage box.

[0012] According to one embodiment of the present invention, the low-voltage cable in the low-voltage box passes through the third wiring hole and is connected to the vehicle body.

[0013] According to one embodiment of the present invention, the high-pressure box and the low-pressure box are respectively disposed on the roof of the vehicle body, the roof of the vehicle body includes an upper roof panel and a lower roof panel, and the vehicle body cavity is disposed between the upper roof panel and the lower roof panel.

[0014] According to one embodiment of the present invention, a first wiring groove is provided in the first wiring hole, a second wiring groove is provided in the second wiring hole, and a third wiring groove is provided in the third wiring hole. The first wiring groove, the second wiring groove, and the third wiring groove protrude from the upper panel of the vehicle roof. The high-voltage cable passes through the first wiring groove, and the low-voltage cable passes through the second wiring groove and the third wiring groove.

[0015] According to one embodiment of the present invention, the vehicle body cavity includes a plurality of parallel chambers separated by ribs, and a plurality of low-voltage cables are correspondingly disposed in different chambers, with adjacent low-voltage cables separated by the ribs.

[0016] According to one embodiment of the present invention, the high-pressure box and the low-pressure box are arranged opposite to each other in the lateral direction of the vehicle body, and the vehicle body cavity extends in the lateral direction of the vehicle body.

[0017] According to one embodiment of the present invention, the high-voltage box includes a high-voltage chamber and a low-voltage chamber, a partition is provided between the high-voltage chamber and the low-voltage chamber, the high-voltage cable is connected from the outside of the vehicle body to the high-voltage chamber, and the low-voltage cable is connected from the outside of the vehicle body to the low-voltage chamber.

[0018] According to one embodiment of the present invention, the high-voltage box has a protrusion extending toward the low-voltage box, the protrusion communicating with the high-voltage chamber, and the high-voltage cable being connected to the high-voltage chamber through the protrusion.

[0019] The present invention also provides a rail vehicle, including a car body, wherein the car body has the high and low voltage cable crossing structure of the rail vehicle as described above.

[0020] The high-voltage and low-voltage cable crossing structure for rail vehicles provided by this invention involves installing a high-voltage box and a low-voltage box on the surface of the vehicle body. These boxes are connected to a cavity within the vehicle body. High-voltage cables are connected from the outside of the vehicle body to the high-voltage box, and then from the high-voltage box to the inside of the vehicle. Similarly, low-voltage cables are connected from the outside of the vehicle body to the high-voltage box, then through the cavity to the low-voltage box, and finally from the low-voltage box to the inside of the vehicle. This arrangement allows the high-voltage cables outside the high-voltage box to cross with the low-voltage cables inside the cavity. In this way, the high-voltage and low-voltage cables are isolated and shielded by the cavity, avoiding electromagnetic interference when they cross, ensuring normal signal transmission. Furthermore, the high-voltage and low-voltage boxes provide space for wiring within the vehicle body, simplifying the wiring method, facilitating maintenance, and achieving consistency in wiring methods across different vehicles.

[0021] The rail vehicle provided by this invention also possesses all the aforementioned advantages because the vehicle body has the high and low voltage cable cross routing structure of the rail vehicle as described above. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a longitudinal schematic diagram of the high and low voltage cable crossing structure of a rail vehicle provided in an embodiment of the present invention;

[0024] Figure 2 This is a top view schematic diagram of the cross-wiring structure of high and low voltage cables in rail vehicles provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the cable tray structure of the high and low voltage cable crossing structure of the rail vehicle provided in the embodiment of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the car body cavity of the high and low voltage cable crossing structure of the rail vehicle provided in the embodiment of the present invention.

[0027] Figure label:

[0028] 100. Vehicle body; 110. Upper roof panel; 120. Lower roof panel; 130. Vehicle body cavity; 140. Rib; 200. High voltage box; 220. Partition; 300. Low voltage box; 400. High voltage cable; 500. Low voltage cable; 610. First wiring hole; 620. Second wiring hole; 630. Third wiring hole; 710. First wiring trough; 720. Second wiring trough; 730. Third wiring trough. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0032] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] The following is combined with Figures 1-4 Specific embodiments of the present invention are described below.

[0035] like Figure 1 As shown, this embodiment of the invention provides a cross-wiring structure for high and low voltage cables in a rail vehicle. The structure includes two junction boxes, one of which is a high voltage box 200 and the other is a low voltage box 300. The high voltage box 200 and the low voltage box 300 are respectively located on the surface of the vehicle body 100.

[0036] In this embodiment, the bottom of the high-pressure box 200 and the low-pressure box 300 are drilled using the body cavity 130 of the vehicle body 100, and the high-pressure box 200 and the low-pressure box 300 are connected through the body cavity 130.

[0037] During wiring, the high-voltage cable 400 and the low-voltage cable 500 are connected to the vehicle body from the outside. The high-voltage cable 400 is connected from the outside of the vehicle body 100 to the inside of the high-voltage box 200, and then from the high-voltage box 200 into the inside of the vehicle body 100. The low-voltage cable 500 is connected from the outside of the vehicle body 100 to the inside of the high-voltage box 200, and passes through the vehicle body cavity 130 to connect to the inside of the low-voltage box 300.

[0038] like Figure 2 As shown, this wiring method allows the high-voltage cable 400 located outside the high-voltage box 200 to cross with the low-voltage cable 500 located inside the vehicle body cavity 130. In this way, the high-voltage cable 400 and the low-voltage cable 500 are isolated and shielded by the vehicle body cavity 130, avoiding electromagnetic interference when the high-voltage cable 400 and the low-voltage cable 500 cross, and ensuring normal transmission of vehicle signals.

[0039] It should be noted that the vehicle body 100 and the vehicle body cavity 130 in this embodiment of the invention are metal frames. The high-voltage cable 400 located outside the high-voltage box 200 and the low-voltage cable 500 located inside the vehicle body cavity 130 are arranged to cross each other. The high-voltage cable 400 and the low-voltage cable 500 are isolated by the metal vehicle body cavity 130 to achieve electromagnetic shielding and prevent mutual interference when the high and low voltage cables cross.

[0040] In this embodiment of the invention, a high-voltage box 200 and a low-voltage box 300 are provided. High-voltage cables 400 and 500 are directly connected to the high-voltage box 200, and low-voltage cables 500 are connected to the low-voltage box 300 through the high-voltage box 200. This facilitates wiring and provides space for vehicle wiring, avoiding the situation where the height of the cables overlaps and exceeds the vehicle wiring space. This simplifies the vehicle wiring method, facilitates the wiring layout of high-voltage cables 400 and low-voltage cables 500, facilitates maintenance, and achieves consistency in wiring methods for different vehicles.

[0041] like Figure 1 In this embodiment, the high-voltage box 200 is provided with a first wiring hole 610 and a second wiring hole 620. The first wiring hole 610 penetrates the vehicle body 100 and connects to the inside of the vehicle body 100, and the second wiring hole 620 connects to the vehicle body cavity 130. The low-voltage box 300 is provided with a third wiring hole 630. The third wiring hole 630 penetrates the vehicle body 100 and connects to the inside of the vehicle body 100, and connects to the vehicle body cavity 130.

[0042] In other words, these three wiring holes are different.

[0043] The first wiring hole 610 penetrates the vehicle body 100 and connects to the inside of the vehicle body 100, so that the high-voltage cable 400 connected to the high-voltage box 200 can be connected to the inside of the vehicle body 100 through the first wiring hole 610, thereby realizing the wiring layout of the high-voltage cable 400.

[0044] The second wiring hole 620 does not completely penetrate the vehicle body 100. The second wiring hole 620 is connected to the vehicle body cavity 130, so that the low-voltage cable 500 connected to the high-voltage box 200 can be introduced into the vehicle body cavity 130.

[0045] The third wiring hole 630 penetrates the vehicle body 100 and connects to the interior of the vehicle body 100, and is connected to the vehicle body cavity 130. That is, the third wiring hole 630 has the characteristics of the first wiring hole 610 and the second wiring hole 620. The side of the third wiring hole 630 near the high-voltage box 200 is connected to the vehicle body cavity 130, and can be connected to the second wiring hole 620 through the vehicle body cavity 130. The other side of the third wiring hole 630 extends directly through the vehicle body 100 and connects to the interior of the vehicle body 100. In this way, the low-voltage cable 500 located in the vehicle body cavity 130 can be connected to the low-voltage box 300 through the third wiring hole 630. At the same time, the low-voltage cable 500 in the low-voltage box 300 can also be connected to the vehicle body 100 through the third wiring hole 630, which effectively realizes the separation layout of high and low voltage cables and realizes flexible wiring.

[0046] like Figure 1 and Figure 2 As shown, in one embodiment, the high-voltage box 200 and the low-voltage box 300 are respectively located on the roof of the vehicle body, which facilitates the routing of high and low voltage cables in the rail vehicle, saves interior space, and avoids the drawbacks of various cables piling up in the roof space of the car, which is inconvenient for wiring and poses safety hazards. It also achieves consistency in wiring methods for different vehicles, improving wiring efficiency and standardization.

[0047] like Figure 3 As shown, in one embodiment, the vehicle roof panel includes an upper roof panel 110 and a lower roof panel 120. A vehicle body cavity 130 is disposed between the upper roof panel 110 and the lower roof panel 120. The vehicle body cavity 130 is the internal space of the vehicle body profile. In this embodiment of the invention, the wiring is routed through the vehicle body cavity 130 so that the low-voltage cable 500 crosses with the high-voltage cable 400 outside the metal vehicle body cavity 130. The metal upper roof panel 110 isolates the high-voltage cable 400 from the low-voltage cable 500, avoiding electromagnetic interference when they cross.

[0048] like Figure 3 As shown, in one embodiment, a first wiring groove 710 is provided in the first wiring hole 610, a second wiring groove 720 is provided in the second wiring hole 620, and a third wiring groove 730 is provided in the third wiring hole 630. The first wiring groove 710, the second wiring groove 720, and the third wiring groove 730 are vertically arranged on the vehicle body 100. Of course, it can also be said that the through hole of the first wiring groove 710 is the first wiring hole 610, the through hole of the second wiring groove 720 is the second wiring hole 620, and the through hole of the third wiring groove 730 is the third wiring hole 630. The high-voltage cable 400 and the low-voltage cable 500 pass through these through holes respectively.

[0049] The first wiring trough 710, the second wiring trough 720, and the third wiring trough 730 protrude from the roof panel 110. Since the high-voltage box 200 and the low-voltage box 300 are vertically positioned on the top of the vehicle body 100, they are inevitably exposed to water, which could easily lead to water leakage. The design of the first wiring trough 710, the second wiring trough 720, and the third wiring trough 730 protruding from the roof panel 110 not only prevents water from entering the high-voltage box 200 and the low-voltage box 300, but also effectively prevents water from entering the interior of the vehicle body 100 or the vehicle body cavity 130, thus achieving a waterproof effect and ensuring the safety of high and low voltage cable wiring.

[0050] In this embodiment, the high-voltage cable 400 passes through the first wiring trough 710 and enters the vehicle body 100 through the first wiring trough 710; the low-voltage cable 500 enters the vehicle body cavity 130 from the second wiring trough 720 and enters the low-voltage box 300 through the third wiring trough 730. At the same time, the low-voltage cable 500 in the low-voltage box 300 enters the interior of the vehicle body 100 through the third wiring trough 730.

[0051] like Figure 4 As shown, in one embodiment, the vehicle body cavity 130 includes multiple parallel chambers separated by ribs 140. Multiple low-voltage cables 500 are correspondingly disposed in different chambers, with adjacent low-voltage cables 500 separated by the ribs 140. Thus, within the vehicle body cavity 130, adjacent low-voltage cables 500 can be separated by the metal ribs 140, avoiding electromagnetic interference between adjacent low-voltage cables 500, further improving the shielding effect of the wiring, and ensuring normal cable transmission.

[0052] In one embodiment, the high-pressure box 200 and the low-pressure box 300 are arranged opposite each other in the lateral direction of the vehicle body 100, and the vehicle body cavity 130 extends in the lateral direction of the vehicle body 100.

[0053] In this way, the low-voltage cable 500 located in the vehicle body cavity 130 is arranged laterally along the vehicle body, which facilitates the connection of the high-voltage cable 400 longitudinally along the vehicle body 100 to the high-voltage box 200. This facilitates the connection of the high-voltage cable 400. At the same time, the high-voltage cable 400 and the low-voltage cable 500 are distributed to both sides of the vehicle body 100, so that the high and low voltage cables after the branching are arranged separately, which further avoids electromagnetic interference between the high and low voltage lines and also facilitates the maintenance of the high and low voltage cables.

[0054] Furthermore, such as Figure 2 As shown, in one embodiment, the high-pressure box 200 includes a high-pressure chamber and a low-pressure chamber, with a partition 220 between the high-pressure chamber and the low-pressure chamber. The high-pressure cable 400 is connected from the outside of the vehicle body 100 to the inside of the high-pressure chamber, and the low-pressure cable 500 is connected from the outside of the vehicle body 100 to the inside of the low-pressure chamber.

[0055] Since both the high-voltage cable 400 and the low-voltage cable 500 are initially connected to the high-voltage box 200, a partition 220 is installed inside the high-voltage box 200 to divide the high-voltage box 200 into a high-voltage chamber and a low-voltage chamber. The high-voltage cable 400 in the high-voltage chamber and the low-voltage cable 500 in the low-voltage chamber are isolated by the partition 220. The partition 220 is preferably a metal partition to avoid mutual interference between the high-voltage cable 400 and the low-voltage cable 500.

[0056] It is worth mentioning that in this embodiment, the high-voltage chamber and the low-voltage chamber of the high-voltage box 200 are designed as two completely isolated cavities, which respectively protect the high-voltage cable 400 and the low-voltage cable 500. Specifically, the first wiring hole 610 and the first cable tray 710 are located in the high-voltage chamber, and the second wiring hole 620 and the second cable tray 720 are located in the low-voltage chamber.

[0057] like Figure 1 and Figure 2 As shown, in one embodiment, the high-voltage box 200 has a protrusion 210 extending toward the low-voltage box 300. The protrusion 210 communicates with the high-voltage chamber, and the high-voltage cable 400 is connected to the high-voltage chamber through the protrusion 210. The protrusion 210 can shorten the connection path of the high-voltage cable 400.

[0058] Meanwhile, the high-voltage cable 400 connects from the bottom of the protrusion 210 to the high-voltage chamber, which can provide a certain degree of waterproofing.

[0059] In this embodiment, both the high-voltage chamber and the low-voltage chamber of the high-voltage box 200 are provided with wiring ports to facilitate the connection of the high-voltage cable 400 and the low-voltage cable 500 into the high-voltage box 200. Preferably, the wiring ports are waterproof ports.

[0060] This invention also provides a rail vehicle, on which the high- and low-voltage cable crossing structure mentioned in the above embodiments is provided. This rail vehicle possesses the high- and low-voltage cable crossing structure described in the above embodiments. Therefore, this rail vehicle also possesses all the advantages mentioned above.

[0061] Preferably, the rail vehicle is a monorail vehicle.

[0062] In summary, this wiring structure and rail vehicle achieve complete isolation between high and low voltage cables, avoid electromagnetic interference between them, simplify the wiring method on the roof, and ensure structural consistency across different vehicles.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cross-wiring structure for high and low voltage cables in rail vehicles, characterized in that, include: A high-pressure box and a low-pressure box, wherein the high-pressure box and the low-pressure box are respectively disposed on the surface of the vehicle body and connected to the vehicle body cavity; High-voltage cables are connected from the outside of the vehicle body to the high-voltage box. The low-voltage cable is connected from the outside of the vehicle body to the inside of the high-voltage box, and passes through the cavity of the vehicle body to connect to the low-voltage box. The high-voltage cables located outside the high-voltage box are arranged to cross with the low-voltage cables located inside the vehicle body cavity.

2. The high- and low-voltage cable crossing structure for rail vehicles according to claim 1, characterized in that, The high-voltage box is provided with a first wiring hole and a second wiring hole. The first wiring hole passes through the vehicle body and is connected to the vehicle body, and the second wiring hole is connected to the vehicle body cavity. The low-voltage box is provided with a third wiring hole. The third wiring hole passes through the vehicle body and is connected to the vehicle body cavity. The high-voltage cable passes through the first wiring hole and connects to the vehicle body; The low-voltage cable passes through the second wiring hole, the vehicle body cavity, and the third wiring hole in sequence and connects to the low-voltage box.

3. The high- and low-voltage cable crossing structure for rail vehicles according to claim 2, characterized in that, The low-voltage cable inside the low-voltage box passes through the third wiring hole and connects to the vehicle body.

4. The high- and low-voltage cable crossing structure for rail vehicles according to claim 2, characterized in that, The high-pressure box and the low-pressure box are respectively located on the roof of the vehicle body. The roof of the vehicle body includes an upper roof panel and a lower roof panel, and the vehicle body cavity is located between the upper roof panel and the lower roof panel.

5. The high- and low-voltage cable crossing structure for rail vehicles according to claim 4, characterized in that, The first wiring hole is provided with a first wiring groove, the second wiring hole is provided with a second wiring groove, and the third wiring hole is provided with a third wiring groove. The first wiring groove, the second wiring groove, and the third wiring groove protrude from the upper panel of the vehicle roof. The high-voltage cable passes through the first wiring groove, and the low-voltage cable passes through the second wiring groove and the third wiring groove.

6. The high- and low-voltage cable crossing structure for rail vehicles according to claim 1, characterized in that, The vehicle body cavity includes multiple parallel chambers separated by ribs, and multiple low-voltage cables are correspondingly arranged in different chambers, with adjacent low-voltage cables separated by the ribs.

7. The high- and low-voltage cable crossing structure for rail vehicles according to claim 1, characterized in that, The high-pressure box and the low-pressure box are arranged opposite each other along the lateral direction of the vehicle body, and the vehicle body cavity extends along the lateral direction of the vehicle body.

8. The high- and low-voltage cable crossing structure for rail vehicles according to any one of claims 1-7, characterized in that, The high-voltage box includes a high-voltage chamber and a low-voltage chamber, with a partition between the high-voltage chamber and the low-voltage chamber. The high-voltage cable is connected from the outside of the vehicle body to the high-voltage chamber, and the low-voltage cable is connected from the outside of the vehicle body to the low-voltage chamber.

9. The high- and low-voltage cable crossing structure for rail vehicles according to claim 8, characterized in that, The high-voltage box has a protrusion extending toward the low-voltage box, the protrusion being connected to the high-voltage chamber, and the high-voltage cable being connected to the high-voltage chamber through the protrusion.

10. A rail vehicle, characterized in that, Includes a vehicle body, the vehicle body having a high- and low-voltage cable crossing structure for rail vehicles as described in any one of claims 1-9.

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