Mobile photovoltaic containers for railway track maintenance

Abstract

This utility model discloses a mobile photovoltaic container for railway track maintenance, relating to the technical field of photovoltaic containers. It includes: a container body with two parallel guide rails inside; photovoltaic panel components, which can be housed inside the container body, comprising a foldable photovoltaic frame and photovoltaic components mounted on the frame; the foldable photovoltaic frame includes several photovoltaic frames connected end-to-end by hinges; pulleys, with pulleys installed on both sides of several photovoltaic frames, capable of moving along the guide rails and railway tracks; and a locking mechanism, including locking blocks and pins, for restricting the movement of the photovoltaic panel components on the guide rails. This mobile photovoltaic container can generate electricity off-grid, meeting the power needs of railway track maintenance, and can be flexibly deployed on railway track sections requiring maintenance. The dual-rail adaptable pulleys are compatible with both the container guide rails and the railway track rails, facilitating the transition from the guide rails inside the container to the railway track.

Description

Technical Field

[0001] This utility model relates to the technical field of mobile photovoltaic containers, specifically mobile photovoltaic containers used for supplying power to railway track maintenance. Background Technology

[0002] In railway track maintenance, traditional power supply methods mainly rely on diesel generators or temporary grid connection. However, both methods have significant drawbacks: 1. Diesel generators generate noise (>100dB) and exhaust pollution. Frequent fuel transportation is required, increasing costs by more than 40% in remote sections. 2. Grid connection is problematic because 70% of maintenance sections are far from power supply nodes. Temporary cable laying takes more than 2 hours per kilometer, impacting construction efficiency during maintenance windows.

[0003] In terms of off-grid power supply, photovoltaics has significant advantages, and photovoltaic power generation containers are more suitable for power supply during railway track modification operations. Currently, photovoltaic power generation containers have been phased out of the market, and related patents have been applied for. For example, invention patent CN115800898B discloses a portable photovoltaic array generator container and its usage method, including a foldable photovoltaic power generation unit, a track assembly for extending or retracting the foldable photovoltaic power generation unit, electrical equipment, and a container. This invention generates electricity simply by unfolding the foldable photovoltaic power generation unit; it can be easily transported anywhere by simply folding the unit back into the container. This invention has a wide range of applications, is easy to install and transport, breaking the geographical constraints of current common ground-mounted and distributed photovoltaic power stations, meeting the application needs of various environments, and possessing better portability and multi-scenario switching capabilities.

[0004] Furthermore, invention patent CN107834972B discloses a method for the rapid deployment and retrieval of photovoltaic modules in a container, including the following steps: two parallel guide rails extending longitudinally along the side door of the photovoltaic cabin; stainless steel edging around the solar panels, connected end-to-end by hinges, with the hinges on both sides of each solar panel installed alternately; rollers installed on both sides of each solar panel that can move along the guide rails; the solar panels move along the guide rails via the rollers on both sides, enabling rapid deployment or folding into the photovoltaic cabin, improving the support strength of the solar panels, increasing their service life, making deployment and retrieval easy and convenient, reducing labor intensity for workers, and improving safety. The above patents describe ordinary photovoltaic containers and construction methods, optimized for railway scenarios, and therefore unsuitable for use in railway track maintenance. To solve the power supply problem in railway track maintenance operations, there is an urgent need for a photovoltaic container suitable for power generation and energy storage on railway tracks. Summary of the Invention

[0005] Based on this, a mobile photovoltaic container for railway track maintenance is provided.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Mobile photovoltaic containers are used for railway track maintenance. These containers are transported to the side of the railway track to be maintained, then hoisted onto the track to provide power during maintenance. The process includes:

[0008] The container body has two parallel guide rails extending longitudinally therein, and the two guide rails are the same as the steel rails of the railway track.

[0009] A photovoltaic panel assembly, which can be housed inside the container, includes a foldable photovoltaic frame and photovoltaic components mounted on the photovoltaic frame. The foldable photovoltaic frame includes several photovoltaic frames connected end to end by hinges.

[0010] The photovoltaic frames are equipped with pulleys on both sides, which can move along guide rails and railway tracks. The pulleys can move on guide rails inside the container or on railway tracks.

[0011] The locking mechanism includes a locking block and a pin. When the photovoltaic panel assembly is housed inside the container, the locking block is engaged with the guide rail on the outside of the photovoltaic panel assembly. The guide rail and the locking block are fixed together by the pin to restrict the movement of the photovoltaic panel assembly on the guide rail.

[0012] By adopting the above technical solution, mobile photovoltaic containers can be quickly deployed on railway tracks. The photovoltaic panels are foldable; they are pulled out from the guide rails of the container, and pulleys beneath them move from the guide rails inside the container to the railway track, causing the panels to lay flat on the track. This allows the photovoltaic power to supply electricity to the loads. When it is necessary to retract the photovoltaic panels into the container, a locking mechanism secures them to two parallel guide rails inside the container, preventing movement and ensuring the panels are not damaged by impacts within the container.

[0013] Preferably, the container body includes two photovoltaic compartments and one electrical compartment, with the electrical compartment located between the two photovoltaic compartments. Each of the two photovoltaic compartments is equipped with a photovoltaic panel assembly, and the electrical compartment is equipped with an electrical energy storage device.

[0014] Preferably, the electrical energy storage device includes a lithium battery pack, an inverter, and a distribution box. The photovoltaic module is connected to the inverter by a circuit, the lithium battery pack is connected to the inverter by a circuit, the inverter is connected to the distribution box by a circuit, and the distribution box supplies power to the electrical load.

[0015] Preferably, the container body is provided with openable and closable photovoltaic doors at both ends, and the photovoltaic doors are arranged corresponding to the photovoltaic compartments.

[0016] Preferably, it also includes a track-walking wheel set, on which a support platform is provided for carrying the mobile photovoltaic container to move on the railway track.

[0017] Preferably, a fireproof partition is provided between the electrical compartment and the photovoltaic compartment.

[0018] Preferably, the electrical compartment is equipped with a door located on the middle side wall of the container body.

[0019] Compared with related technologies, the mobile photovoltaic container for railway track maintenance provided by this utility model has the following advantages:

[0020] 1. The mobile photovoltaic container of this utility model can generate electricity silently off-grid, meet the power demand of railway track maintenance, and can be flexibly deployed on railway track sections that need to be maintained, without polluting the surrounding environment.

[0021] 2. The dual-rail adaptable pulley is compatible with both container guide rails and railway rails. The pulley can move along the guide rail or railway rail, transitioning seamlessly from the guide rail inside the container to the railway rail.

[0022] 3. After the photovoltaic panel module of this utility model is unfolded, it is supported by railway tracks, eliminating the need to set up external tracks on the outside of the container. Attached Figure Description

[0023] Figure 1 Three-dimensional view of the unfolded photovoltaic panel components of the mobile photovoltaic container Figure 1 ;

[0024] Figure 2 Three-dimensional view of the unfolded photovoltaic panel components of the mobile photovoltaic container Figure 2 ;

[0025] Figure 3 The three-dimensional structure of the folded photovoltaic panel components of the mobile photovoltaic container Figure 1 ;

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 A 3D view of the container and electrical energy storage equipment;

[0028] Figure 6 A 3D view of the container body and guide rails;

[0029] Figure 7 A 3D diagram of the track-mounted wheel assembly and the railway track;

[0030] Figure 8 A 3D view of a mobile photovoltaic container carried by a track-mounted wheel assembly.

[0031] Reference numerals: 1. Railway track; 2. Container body; 21. Guide rail; 22. Photovoltaic door; 3. Photovoltaic panel assembly; 31. Photovoltaic frame; 32. Photovoltaic module; 4. Pulley; 5. Locking mechanism; 51. Locking block; 511. Clamping part; 512. Limiting block; 52. Pin; 6. Electrical energy storage equipment; 7. Fireproof partition; 8. Track-mounted wheel set; 81. Load-bearing platform. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," and "right," which indicate direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0034] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 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 this utility model according to the specific circumstances. Example

[0035] This utility model provides a mobile photovoltaic container for railway track maintenance. The mobile photovoltaic container is transported to the side of the railway track 1 to be repaired, and then hoisted onto the railway track 1 to provide power during maintenance. The mobile photovoltaic container can be transported by a dedicated container truck, enabling flexible deployment. The mobile photovoltaic container includes a container body 2, photovoltaic panel components 3, pulleys 4, and a locking mechanism 5.

[0036] Specifically, the container body 2 is equipped with two parallel guide rails 21 extending longitudinally, and the two guide rails 21 inside the container body 2 are the same as the steel rails of the railway track 1. When the container body 2 is placed on the railway track 1, the two parallel guide rails 21 are located directly above the two rails of the railway track 1, and the guide rails 21 correspond one-to-one with the steel rails of the railway track 1.

[0037] The photovoltaic panel assembly 3 can be stored inside the container body 2, or it can be pushed out and unfolded from inside the container body 2, and laid on the railway track 1 after unfolding, with the railway track 1 supporting the photovoltaic panel assembly 3. The photovoltaic panel assembly 3 includes a foldable photovoltaic frame 31 and photovoltaic modules 32 installed on the photovoltaic frame 31. The foldable photovoltaic frame 31 includes several photovoltaic frames 31 connected end to end by hinges. Several photovoltaic modules 32 are respectively installed in slots within several photovoltaic frames 31 and fastened together by bolt assemblies. Several photovoltaic frames 31 can be folded or unfolded by hinges. When inside the container body 2, several photovoltaic frames 31 are in a folded state; when outside the container body 2, several photovoltaic frames 31 are in an unfolded state, and the photovoltaic modules 32 can generate electricity.

[0038] To allow the photovoltaic panel assembly 3 to extend and unfold along the railway track 1, pulleys 4 are installed on both sides of the bottom of several photovoltaic frames 31, enabling them to move along the guide rail 21 and the railway track 1. These pulleys 4 are double-rail compatible, allowing them to move seamlessly from the guide rail 21 inside the container 2 to the railway track 1. When the photovoltaic panel assembly 3 inside the container 2 needs to be pushed out, pulling the assembly outwards causes the pulleys 4 to move outwards on the guide rail 21. After being removed from the container 2, the pulleys 4 move away from the container 2 on the railway track 1 until the photovoltaic panel assembly 3 is completely laid out on the railway guide rail 21, thus making efficient use of the railway track 1 to support the photovoltaic panel assembly 3.

[0039] When the photovoltaic panel assembly 3 is folded inside the container 2, it is prone to moving back and forth on the two parallel guide rails 21 during transportation. The locking mechanism 5 is used to restrict the forward and backward movement of the photovoltaic panel assembly 3 on the two parallel guide rails 21. The locking mechanism 5 includes a locking block 51 and a pin 52. The pin 52 has a diameter of 20mm. Both the locking block 51 and the two guide rails 21 are provided with through holes with a diameter of 20mm. When the photovoltaic panel assembly 3 is stored inside the container 2, the locking blocks 51 are engaged on the guide rails 21 on both outer ends of the photovoltaic panel assembly 3. The guide rails 21 and the locking blocks 51 are fixed together by the pins 52. The pins 52 are inserted into the through holes of the locking blocks 51 and the two guide rails 21 to lock the locking blocks 51 onto the guide rails 21. The locking blocks 51 on both sides clamp the photovoltaic panel assembly 3 onto the guide rail 21, thereby restricting the movement of the photovoltaic panel assembly 3 on the guide rail 21 and ensuring that the photovoltaic panel assembly 3 will not be damaged by bumps inside the container body 2.

[0040] In this embodiment, the container body 2 includes two photovoltaic compartments and one electrical compartment. The electrical compartment is located between the two photovoltaic compartments, and a fireproof partition 7 is installed between the electrical compartment and the photovoltaic compartments. Each photovoltaic compartment contains photovoltaic panel assemblies 3. The container body 2 has openable and closable photovoltaic compartment doors 22 at both ends, which are arranged correspondingly to the photovoltaic compartments, allowing the photovoltaic panel assemblies 3 to enter and exit through the doors. The electrical compartment contains an electrical energy storage device 6, which is electrically connected to the photovoltaic panel assemblies 3. The photovoltaic panel assemblies 3 generate solar power, which is stored in the electrical energy storage device 6 and then supplied to external electrical loads through the electrical energy storage device 6 to meet the power needs of railway track 1 maintenance. The electrical energy storage device 6 is a commercially available, technologically mature product, and its detailed structure will not be described here.

[0041] In this embodiment, the container body 2 adopts a weathering steel frame with a wall thickness of ≥2mm; the two parallel guide rails 21 welded to the bottom of the container body 2 are made of Q345D steel with an I-beam cross-section. The track gauge of the two guide rails 21 is 1435mm, which is consistent with the standard railway track 1, and the outer surface of the two guide rails 21 is galvanized for rust prevention.

[0042] In this embodiment, the electrical energy storage device 6 includes a lithium battery pack (not shown in the figure), an inverter (not shown in the figure), and a distribution box (not shown in the figure). The photovoltaic module 32 is electrically connected to the inverter, the lithium battery pack is electrically connected to the inverter, and the inverter is electrically connected to the distribution box. The distribution box supplies power to the electrical load. The photovoltaic module 3 and the electrical energy storage device 6 are combined to form an integrated photovoltaic-storage-utilization solution. The inverter has a built-in transient impact compensation module with a response time of <20ms. When the rail welding machine starts, it automatically switches to the lithium battery-photovoltaic module 3 hybrid power supply mode.

[0043] In this embodiment, as Figure 7 and Figure 8 As shown, it also includes a track-mounted wheel assembly 8, on which a support platform 81 is provided for carrying the mobile photovoltaic container to move on the railway track 1. When it is necessary to move the mobile photovoltaic container a short distance, the photovoltaic container is hoisted onto the support platform 81 of the track-mounted wheel assembly 8, and traction power can be used to tow the mobile photovoltaic container on the railway track 1 to follow the maintenance section, which is more flexible.

[0044] In this embodiment, a traction rope (not shown in the figure) is fixed on the outermost photovoltaic frame 31 of the photovoltaic panel assembly 3. The operator can pull the traction rope to unfold the photovoltaic panel assembly 3 outward.

[0045] In this embodiment, the locking block 51 includes a clamping part 511 and a limiting block 512. The clamping part 511 can clamp onto the outside of the guide rail 21. The clamping part 511 is provided with a through hole. The limiting block 512 is fixed to the top of the clamping part 511. The pin 52 is inserted into the through hole between the clamping part 511 and the guide rail 21 to lock the locking block 51 onto the guide rail 21. When it is necessary to release the locking block 51, the operator uses a special ratchet wrench to pull out the pin 52 and release the locking block 51 from the photovoltaic frame 31.

[0046] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile photovoltaic container for railway track maintenance, wherein the mobile photovoltaic container is placed on the railway track (1) for supplying power to the railway track (1) during maintenance, characterized in that, include: The container body (2) is provided with two parallel guide rails (21) extending longitudinally therein; A photovoltaic panel assembly (3) is housed inside the container body (2). It includes a foldable photovoltaic frame (31) and photovoltaic modules (32) installed on the photovoltaic frame (31). The foldable photovoltaic frame (31) includes a plurality of photovoltaic frames (31) connected end to end by hinges. Pulleys (4), several of the photovoltaic frames (31) are equipped with pulleys (4) on both sides, which are capable of moving along the guide rail (21) and the railway track (1); The locking mechanism (5) includes a locking block (51) and a pin (52). When the photovoltaic panel assembly (3) is housed inside the container body (2), the locking block (51) is locked on the guide rail (21) on the outside of the photovoltaic panel assembly (3). The guide rail (21) and the locking block (51) are fixed together by the pin (52) to restrict the movement of the photovoltaic panel assembly (3) on the guide rail (21).

2. The mobile photovoltaic container for railway track maintenance according to claim 1, characterized in that: The container body (2) includes two photovoltaic compartments and one electrical compartment. The electrical compartment is located between the two photovoltaic compartments. Each of the two photovoltaic compartments is equipped with a photovoltaic panel assembly (3), and the electrical compartment is equipped with an electrical energy storage device (6).

3. The mobile photovoltaic container for railway track maintenance according to claim 2, characterized in that: The electrical energy storage device (6) includes a lithium battery pack, an inverter and a distribution box. The photovoltaic module (32) is connected to the inverter by a circuit. The lithium battery pack is connected to the inverter by a circuit. The inverter is connected to the distribution box by a circuit. The distribution box supplies power to the electrical load.

4. The mobile photovoltaic container for railway track maintenance according to claim 2, characterized in that: The container body (2) is provided with openable and closable photovoltaic doors (22) at both ends, and the photovoltaic doors (22) are arranged corresponding to the photovoltaic compartment.

5. The mobile photovoltaic container for railway track maintenance according to claim 1, characterized in that: It also includes a track-walking wheel set (8), on which a carrying platform (81) is provided for carrying the mobile photovoltaic container to move on the railway track (1).

6. The mobile photovoltaic container for railway track maintenance according to claim 2, characterized in that: A fireproof partition (7) is provided between the electrical compartment and the photovoltaic compartment.

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