Multilayer prefabricated cabin and transformer substation

Abstract

The utility model belongs to the field of power transformation and distribution equipment, and particularly relates to a multi-layer prefabricated cabin and a transformer substation, a cabin body comprises n layers of cabins which are sequentially arranged from bottom to top in the height direction, every two adjacent cabins are separated through a middle layer plate, n is an integer larger than or equal to 2, and channel holes are formed in the middle layer plates; the boarding ladder is at least arranged in one of other cabins except the nth layer cabin of the cabin body, the boarding ladder is connected with the side wall or the middle layer plate of the cabin body, the boarding ladder can be folded or stretched to form an unfolded state and a folded state, in the unfolded state, the boarding ladder is connected with the channel hole and the bottom plate or the middle layer plate of the cabin body below the channel hole, and in the folded state, the boarding ladder is connected with the bottom plate or the middle layer plate of the cabin body below the channel hole. The cabin climbing ladder is located in the side wall of the cabin body, on the inner side of the side wall of the cabin body, in the channel hole or below the middle layer plate. The boarding ladder can be unfolded or folded for storage, so that the storage volume of the boarding ladder is reduced, and the problem that the boarding ladder occupies the mounting space and maintenance space of power transformation equipment in a cabin is solved.

Description

Technical Field

[0001] This application belongs to the field of power transformation and distribution equipment, and particularly relates to a multi-layer prefabricated cabin and a substation. Background Art

[0002] Prefabricated substations adopt factory prefabrication production, and most of the assembly and commissioning work is completed in the factory, reducing the on-site construction time. Compared with traditional substations, the construction period can be shortened by 50% or even more. At the same time, with the increasing tension of land resources, multi-layer three-dimensional substations with two or more floors have developed rapidly, achieving a significant reduction in the floor area. In addition, the three-dimensional substation has a compact structure and a reasonable layout, which is convenient for road transportation and can better adapt to different terrains and environments, such as narrow streets, mountainous areas or densely built-up areas.

[0003] A three-dimensional substation needs to be provided with an interlayer staircase as an interlayer passage. In existing three-dimensional substations, the interlayer staircase is arranged outside or inside the three-dimensional substation. When the interlayer staircase is arranged outside the three-dimensional substation, it increases the floor area of the three-dimensional substation, affects the overall beauty of the three-dimensional substation, and the operation personnel (i.e., operation and maintenance personnel) boarding the cabin is affected by the weather. When the interlayer staircase is arranged inside the three-dimensional substation, it will occupy the installation space and maintenance space of the substation equipment. Summary of the Utility Model

[0004] The purpose of this application is to provide a multi-layer prefabricated cabin and a substation, which can at least solve the problem that the interlayer staircase occupies the installation space and maintenance space of the substation equipment.

[0005] To achieve the above purpose, this application provides a multi-layer prefabricated cabin, including:

[0006] A cabin body, including n layers of cabins arranged in sequence from bottom to top in the height direction, adjacent two of the cabins are separated by an intermediate layer plate, n is an integer greater than or equal to 2, and a passage hole is opened on the intermediate layer plate;

[0007] An access ladder, which is arranged in at least one of the cabins other than the nth floor cabin of the cabin body, the access ladder is connected to the side wall or the intermediate layer plate of the cabin body, the access ladder can be folded or telescoped to form an unfolded state and a stored state, in the unfolded state, the access ladder connects the passage hole and the bottom plate or the intermediate layer plate of the cabin body below the passage hole, and in the stored state, the access ladder is located in the side wall of the cabin body, inside the side wall of the cabin body, in the passage hole or below the intermediate layer plate.

[0008] Optionally, a receiving groove is provided on the side wall of the cabin body, and in the stored state, the access ladder is located in the receiving groove.

[0009] Optionally, the boarding ladder includes a first support assembly, a second support assembly, and a plurality of treads disposed between the first support assembly and the second support assembly. Both ends of the treads are hingedly connected to the first support assembly and the second support assembly respectively, and the first support assembly is connected to the bottom surface of the receiving groove.

[0010] Optionally, in the deployed state, the treads are parallel to the horizontal direction.

[0011] Optionally, the horizontal direction includes a length direction and a width direction that are perpendicular to each other. The first support assembly and the second support assembly are spaced apart along the width direction;

[0012] Both the first support assembly and the second support assembly include inclined connecting rods, horizontal connecting rods, and vertical connecting rods. The horizontal connecting rods extend along the length direction, and a plurality of the horizontal connecting rods are spaced apart along the length direction and the height direction. The first ends of all the horizontal connecting rods are connected to the inclined connecting rods. In the first support assembly: the horizontal connecting rods are located above the inclined connecting rods. In the second support assembly: the horizontal connecting rods are located below the inclined connecting rods. The vertical connecting rods extend along the height direction, and the vertical connecting rods connect the second ends of the horizontal connecting rods to the inclined connecting rods. The treads are connected to the horizontal connecting rods of the first support assembly and the horizontal connecting rods of the second support assembly, and the inclined connecting rod of the first support assembly is connected to the bottom surface of the receiving groove.

[0013] Optionally, the boarding ladder further includes a telescopic rod. The first end of the telescopic rod is hingedly connected to the inclined connecting rod of the first support assembly, and the second end of the telescopic rod is hingedly connected to the tread.

[0014] Optionally, the multi-layer prefabricated cabin further includes a linkage isolation device. The linkage isolation device is disposed on one side of the intermediate layer plate close to the bottom plate of the cabin body. The linkage isolation device is used to open or close the channel hole. The linkage isolation device includes a linkage partition plate and a slide rail. The slide rail is disposed on one side of the intermediate layer plate close to the bottom plate of the cabin body. The linkage partition plate is slidably disposed on the slide rail.

[0015] Optionally, the linkage partition plate is movably connected to the second support assembly. The second support assembly can drive the linkage partition plate to slide within the slide rail, so that the linkage partition plate opens or closes the channel hole.

[0016] Optionally, in the deployed state, the boarding ladder is connected to the first side of the channel hole. The multi-layer prefabricated cabin further includes a guardrail. The guardrail is disposed on one side of the intermediate layer plate away from the bottom plate of the cabin body. The guardrail surrounds the channel hole and is disposed on at least one of the other three sides except the first side of the channel hole.

[0017] This application also provides a substation, including:

[0018] The multi-layer prefabricated cabin;

[0019] Power transformation equipment, which is arranged in the multi-layer prefabricated cabin.

[0020] The multi-layer prefabricated cabin and the substation disclosed in this application have the following beneficial effects:

[0021] In this application, the cabin body includes n layers of cabins arranged in sequence from bottom to top in the height direction. Two adjacent cabins are separated by an intermediate layer board. n is an integer greater than or equal to 2. The intermediate layer board is provided with a passage hole. The boarding ladder is arranged in at least one of the other cabins except the nth layer cabin of the cabin body. The boarding ladder is connected to the side wall or the intermediate layer board of the cabin body. The boarding ladder can be folded or telescoped to form an unfolded state and a stored state. In the unfolded state, the boarding ladder connects the passage hole and the bottom board or the intermediate layer board of the cabin body below the passage hole. In the stored state, the boarding ladder is located in the side wall of the cabin body, inside the side wall of the cabin body, in the passage hole or below the intermediate layer board. The boarding ladder can be unfolded or folded and stored, reducing the storage volume of the boarding ladder and solving the problem that the boarding ladder occupies the installation space and maintenance space of the power transformation equipment in the cabin where it is located.

[0022] Other features and advantages of this application will become apparent through the following detailed description, or will be partially learned through the practice of this application.

[0023] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this disclosure. [[ID=2"1]]BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with this application, and are used together with the specification to explain the principles of this application. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 is a schematic structural diagram of the multi-layer prefabricated cabin in the embodiment of this application.

[0026] Figure 2 is a schematic diagram of the stored state of the boarding ladder in the embodiment of this application.

[0027] Figure 3 is a partially enlarged schematic diagram of the stored state of the boarding ladder in the embodiment of this application.

[0028] Figure 4 is a schematic diagram of the unfolded state of the boarding ladder in the embodiment of this application.

[0029] Figure 5 is Figure 4 The enlarged partial view of position A in

[0030] Figure 6 is the structural schematic diagram of the linkage isolation device in the embodiment of the present application.

[0031] Figure 7 is the schematic plan view of one layer of the multi-layer prefabricated cabin in the embodiment of the present application.

[0032] Figure 8 is the schematic plan view of the second layer of the multi-layer prefabricated cabin in the embodiment of the present application.

[0033] Figure 9 is Figure 7 the perspective view in the B direction in

[0034] Figure 10 is Figure 7 the perspective view in the C direction in

[0035] Explanation of reference numerals:

[0036] 10. Multi-layer prefabricated cabin; 11. First cabin section; 12. Second cabin section;

[0037] 100. Cabin body; 110. Bottom plate; 111. Second cable channel; 120. Top plate; 130. Side wall; 131. Accommodation groove; 141. Cabin door; 142. Maintenance door; 200. Intermediate layer plate; 210. Channel hole; 220. First cable channel; 300. Embarkation ladder; 310. First bracket assembly; 311. Tilt link; 312. Horizontal link; 313. Vertical link; 320. Second bracket assembly; 330. Pedal; 340. Telescopic rod; 400. Linkage isolation device; 410. Linkage partition; 420. Slide rail; 500. Guardrail; 600. Enclosure wall; 700. Emergency escape module;

[0038] 20. Transformer equipment; 30. Switch equipment; 40. Power distribution equipment; 51. Air conditioner outdoor unit; 52. Air conditioner indoor unit. Detailed implementation manners

[0039] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0040] In addition, the described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present application.

[0041] The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application and should not be construed as a limitation to the present application.

[0042] See Figure 1 and Figure 2 As shown, in this embodiment, the multi-layer prefabricated cabin 10 includes a cabin body 100, an intermediate layer plate 200, and an access ladder 300. The cabin body 100 includes a bottom plate 110 and a top plate 120 arranged at intervals, and side walls 130 disposed between the bottom plate 110 and the top plate 120. The side walls 130 are arranged around the edges of the bottom plate 110 and the top plate 120. The bottom plate 110, the top plate 120, and the side walls 130 can be connected by welding or using fasteners. The side walls 130 are in a cylindrical structure with a rectangular cross-section, and the bottom plate 110, the top plate 120, and the side walls 130 enclose a space for installing power transformation equipment.

[0043] The cabin body 100 includes n layers of cabins arranged in sequence from bottom to top in the height direction. Adjacent two cabins are separated by the intermediate layer plate 200, where n is an integer greater than or equal to 2. For example, when n equals 2, 1 intermediate layer plate 200 separates the cabin body 100 into two layers of cabins; when n equals 3, 2 intermediate layer plates 200 are arranged at intervals in the height direction, and the 2 intermediate layer plates 200 separate the cabin body 100 into 3 layers of cabins. For the sake of easy understanding, this embodiment will be described with the cabin body 100 being divided into two layers of cabins. When the cabin body 100 is divided into 3 layers and more than 3 layers of cabins, the principle is the same as that when the cabin body 100 is divided into two layers of cabins, so it will not be elaborated further. The intermediate layer plate 200 is provided with a passage hole 210.

[0044] The access ladder 300 is provided in at least one of the other cabins except the nth layer cabin of the cabin body 100 as an interlayer passage between adjacent two cabins. The access ladder 300 is connected to the side wall 130 or the intermediate layer plate 200 of the cabin body 100, and the access ladder 300 can be folded or telescoped to form an unfolded state and a stored state.

[0045] In the deployed state, the boarding ladder 300 connects the passage hole 210 and the bottom plate 110 of the cabin body 100 or the intermediate layer plate 200 below the passage hole 210. For example, when the cabin body 100 is divided into two layers, the boarding ladder 300 can be arranged in the first cabin from bottom to top, and the boarding ladder 300 can connect the bottom plate 110 of the cabin body 100 and the passage hole 210 at the top of the first cabin; when the cabin body 100 is divided into three layers, the boarding ladder 300 can be arranged in the first cabin and / or the second cabin from bottom to top, and the boarding ladder 300 in the second cabin can connect the intermediate layer plate 200 at the bottom of the second cabin and the passage hole 210 at the top of the second cabin. In the stowed state, the boarding ladder 300 is located in the side wall 130 of the cabin body 100, inside the side wall 130 of the cabin body 100, in the passage hole 210 or below the intermediate layer plate 200.

[0046] For example, when the boarding ladder 300 is connected to the side wall 130 of the cabin body 100, the boarding ladder 300 can be folded. When not in use, the boarding ladder 300 is folded and stowed on one side of the side wall 130 of the cabin body 100 or in the side wall 130, reducing or avoiding the installation space and maintenance space of the substation equipment in the first cabin; when boarding is required, the boarding ladder 300 can be deployed to connect the bottom plate 110 of the cabin body 100 and the passage hole 210 at the top of the first cabin. When the boarding ladder 300 is connected to the intermediate layer plate 200, the boarding ladder 300 can be telescopic and foldable. When not in use, the boarding ladder 300 can be shortened and folded below the intermediate layer plate 200 or into the passage hole 210, making the boarding ladder 300 substantially parallel to the intermediate layer plate 200 and not occupying the installation space and maintenance space of the substation equipment in the first cabin; when boarding is required, the boarding ladder 300 can be deployed to connect the bottom plate 110 of the cabin body 100 and the passage hole 210 at the top of the first cabin.

[0047] It should be noted that the boarding ladder 300 connecting the passage hole 210 and the bottom plate 110 of the cabin body 100 below the passage hole 210 means that the maintenance personnel on the bottom plate 110 of the cabin body 100 can go up to the second cabin through the boarding ladder 300, and the boarding ladder 300 may not be in contact with the bottom plate 110 and the intermediate layer plate 200 of the cabin body 100. Each intermediate layer plate 200 can be integrally arranged in the cabin body 100, but not limited to this. The intermediate layer plate 200 can also extend into the side wall 130 of the cabin body 100 or penetrate the side wall 130 of the cabin body 100 and extend outside the cabin body 100, which can be determined according to the specific situation. That is to say, the side wall 130 can be vertically segmented, a section of the side wall 130 can be arranged between the bottom plate 110 and the intermediate layer plate 200, and a section of the side wall 130 can be arranged between the intermediate layer plate 200 and the top plate 120.

[0048] In the existing three-dimensional substation, the interlayer staircase is arranged outside or inside the three-dimensional substation. When the interlayer staircase is arranged outside the three-dimensional substation, it increases the floor area of the three-dimensional substation, affects the overall aesthetics of the three-dimensional substation, and the operation and maintenance personnel's boarding the cabin is affected by the weather. When the interlayer staircase is arranged inside the three-dimensional substation, it will occupy the installation space and maintenance space of the substation equipment.

[0049] In this embodiment, the cabin 100 includes n layers of cabins arranged in sequence from bottom to top in the height direction. Adjacent two cabins are separated by an intermediate layer plate 200, where n is an integer greater than or equal to 2. A passage hole 210 is opened on the intermediate layer plate 200. The boarding ladder 300 is arranged in at least one of the other cabins except the nth layer cabin of the cabin 100. The boarding ladder 300 is connected to the side wall 130 or the intermediate layer plate 200 of the cabin 100. The boarding ladder 300 can be folded or telescoped to form an unfolded state and a stored state. In the unfolded state, the boarding ladder 300 connects the passage hole 210 and the bottom plate 110 or the intermediate layer plate 200 of the cabin 100 below the passage hole 210. In the stored state, the boarding ladder 300 is located in the side wall 130 of the cabin 100, inside the side wall 130 of the cabin 100, in the passage hole 210, or below the intermediate layer plate 200. The boarding ladder 300 can be unfolded or folded and stored, reducing the storage volume of the boarding ladder 300 and solving the problem that the boarding ladder 300 occupies the installation space and maintenance space of the substation equipment in the cabin where it is located.

[0050] In some embodiments, a receiving groove 131 is provided on the side wall 130 of the cabin 100. In the stored state, the thickness of the boarding ladder 300 is less than or equal to the depth of the receiving groove 131, and the boarding ladder 300 is located in the receiving groove 131.

[0051] The boarding ladder 300 can be integrally folded and stored in the receiving groove 131, without occupying the installation space and maintenance space of the substation equipment in the first layer cabin.

[0052] See Figures 2 to 5 As shown, the boarding ladder 300 includes a first support assembly 310, a second support assembly 320, and a plurality of pedals 330 arranged between the first support assembly 310 and the second support assembly 320. Both ends of the pedal 330 are hingedly connected to the first support assembly 310 and the second support assembly 320 respectively, and the first support assembly 310 is connected to the bottom surface of the receiving groove 131. The second support assembly 320 can rotate around the hinge axis of the pedal 330 and the first support assembly 310 to fold and store or unfold the boarding ladder 300.

[0053] Both ends of the pedal 330 are hinged to the first support assembly 310 and the second support assembly 320 respectively. The second support assembly 320 rotates around the hinge axis of the pedal 330 and the first support assembly 310 to realize the folding, storage or unfolding of the boarding ladder 300. With such a design, the thickness of the boarding ladder 300 in the storage state can be small enough to be folded and stored as a whole in the accommodation groove 131.

[0054] See Figures 2 to 5 As shown, in the unfolded state, the pedal 330 is parallel to the horizontal direction. The pedal 330 includes a rectangular frame and grille bars, and a plurality of grille bars are arranged vertically and horizontally within the rectangular frame. In the unfolded state, the pedal 330 is parallel to the horizontal direction, that is, the upper and lower end faces of the rectangular frame of the pedal 330 are parallel to the horizontal direction.

[0055] In the unfolded state, the pedal 330 is parallel to the horizontal direction, which facilitates the maintenance personnel to board the ship through the boarding ladder 300.

[0056] See Figures 2 to 5 As shown, the horizontal direction includes a length direction and a width direction that are perpendicular to each other (the length direction is the left - right direction in Figure 1 and the width direction is the front - back direction in Figure 1 ). The first support assembly 310 and the second support assembly 320 are arranged at intervals along the width direction. Both the first support assembly 310 and the second support assembly 320 include inclined connecting rods 311, horizontal connecting rods 312 and vertical connecting rods 313. The horizontal connecting rods 312 extend along the length direction, and a plurality of horizontal connecting rods 312 are arranged at intervals along the length direction and the height direction.

[0057] The first ends of all the horizontal connecting rods 312 are connected to the inclined connecting rods 311. In the first support assembly 310: the horizontal connecting rods 312 are located above the inclined connecting rods 311. In the second support assembly 320: the horizontal connecting rods 312 are located below the inclined connecting rods 311. The vertical connecting rods 313 extend along the height direction, and the vertical connecting rods 313 connect the second ends of the horizontal connecting rods 312 and the inclined connecting rods 311. The vertical connecting rods 313 play a role in supporting the horizontal connecting rods 312. The pedal 330 is connected to the horizontal connecting rods 312 of the first support assembly 310 and the horizontal connecting rods 312 of the second support assembly 320. The inclined connecting rod 311 of the first support assembly 310 is connected to the bottom surface of the accommodation groove 131.

[0058] The horizontal connecting rods 312 are used to connect the pedal 330 to make the pedal 330 parallel to the horizontal direction. The vertical connecting rods 313 play a role in supporting the horizontal connecting rods 312, improving the structural strength of the boarding ladder 300.

[0059] In some embodiments, the boarding ladder 300 further includes a telescopic rod 340. The first end of the telescopic rod 340 is hingedly connected to the inclined link 311 of the first bracket assembly 310, and the second end of the telescopic rod 340 is hingedly connected to the pedal 330, as Figure 3 shown. The telescopic rod 340 includes a pneumatic telescopic rod, a hydraulic telescopic rod, an electric telescopic rod, etc.

[0060] The first bracket assembly 310 and the pedal 330 are connected by the telescopic rod 340. During the folding and storage of the boarding ladder 300, the telescopic rod 340 can play a role in assisting. In addition, the telescopic rod 340 can also play a limiting role to prevent the boarding ladder 300 from folding during use and unfolding when not in use.

[0061] See Figure 6 shown, the multi-layer prefabricated cabin 10 further includes a linkage isolation device 400. The linkage isolation device 400 is arranged on one side of the intermediate layer plate 200 close to the bottom plate 110 of the cabin body 100. The linkage isolation device 400 is used to open or close the passage hole 210. The linkage isolation device 400 includes a linkage partition 410 and a slide rail 420. The slide rail 420 is arranged on one side of the intermediate layer plate 200 close to the bottom plate 110 of the cabin body 100. The linkage partition 410 is slidably arranged on the slide rail 420. The linkage partition 410 can be made of a fireproof material with high temperature resistance.

[0062] It should be noted that the linkage isolation device 400 can be arranged on one side of the intermediate layer plate 200 close to the bottom plate 110 of the cabin body 100, but it is not limited thereto. The linkage isolation device 400 can also be arranged on one side of the intermediate layer plate 200 far from the bottom plate 110 of the cabin body 100, which can be determined according to the specific situation.

[0063] When the boarding ladder 300 is stored in the accommodation groove 131, the linkage partition 410 can be slid out to close the passage hole 210, isolate the two cabins communicated by the passage hole 210, and delay or block the spread of a dangerous situation such as a fire in one cabin to another cabin.

[0064] In some embodiments, the linkage partition 410 is movably connected to the second bracket assembly 320. The second bracket assembly 320 can drive the linkage partition 410 to slide in the slide rail 420 to open or close the passage hole 210. For example, a chute extending along the length direction is arranged on one side of the linkage partition 410 close to the second bracket assembly 320, and a chute extending along its extension direction is arranged on one side of the inclined link 311 of the second bracket assembly 320 close to the linkage partition 410. Sliders are arranged in the two chutes to connect the inclined link 311 and the linkage partition 410. When the second bracket assembly 320 rotates, the sliders slide in the two chutes, driving the linkage partition 410 to slide on its slide rail 420.

[0065] The second support assembly 320 drives the linkage partition 410 to slide, realizing the linkage between the boarding ladder 300 and the linkage partition 410. When the boarding ladder 300 is folded, the passage hole 210 is automatically closed, improving the protection level of the multi-layer prefabricated cabin 10.

[0066] It should be noted that the linkage partition 410 and the second support assembly 320 can be movably connected, that is, the linkage partition 410 and the second support assembly 320 are mechanically linked, but not limited to this. The linkage partition 410 and the second support assembly 320 can also be linked by a controller, which can be determined according to the specific situation. For example, the linkage isolation device 400 further includes a driver. The driver drives the linkage partition 410 to slide, and the telescopic rod 340 drives the pedal 330 to rotate. Both the driver and the telescopic rod 340 are connected to the controller. When boarding is required, the controller controls the linkage partition 410 to open the passage hole 210 through the driver, and at the same time controls the pedal 330 to rotate through the telescopic rod 340 to deploy the boarding ladder 300; when not in use, the controller controls the pedal 330 to rotate through the telescopic rod 340 to fold and store the boarding ladder 300, and at the same time controls the linkage partition 410 to close the passage hole 210 through the driver.

[0067] See Figure 1 As shown, in the deployed state, the boarding ladder 300 is connected to the first side of the passage hole 210. The multi-layer prefabricated cabin 10 further includes a guardrail 500. The guardrail 500 is arranged on the side of the intermediate layer plate 200 away from the bottom plate 110 of the cabin body 100. The guardrail 500 surrounds the passage hole 210 and is arranged on at least one of the other three sides except the first side of the passage hole 210.

[0068] Exemplarily, the boarding ladder 300 is arranged on the side wall 130 of the cabin body 100, and the guardrail 500 is arranged on the second side and the third side of the passage hole 210. The first side and the second side of the passage hole 210 are opposite in the length direction, and the third side and the fourth side of the passage hole 210 are opposite in the width direction. The fourth side of the passage hole 210 is the side close to the receiving groove 131. In addition, the guardrail 500 can be fixedly arranged on the intermediate layer plate 200, but not limited to this. The guardrail 500 can also be designed as a detachable structure or folded onto the passage hole 210, which can be determined according to the specific situation.

[0069] The guardrail 500 surrounds the passage hole 210, which can prevent maintenance personnel or equipment from falling through the passage hole 210 and reduce the safety risk.

[0070] See Figures 7 to 10 , the first layer of the cabin body 100 from bottom to top is provided with a boarding door 141 for personnel to enter and exit. The boarding door 141 is used for emergency escape and daily entry and exit of the first layer of the cabin body 100 of the cabin body 100. The number of boarding doors 141 can be set according to requirements. For example, two boarding doors 141 are arranged in the length direction of the cabin body 100 ( Figure 7 andFigure 8 On both sides in the up - down direction.

[0071] A first cable channel 220 is provided on the middle layer board 200, and the first cable channel 220 is used for the inter - layer cable routing. For example, on both sides in the width direction ( Figure 7 and Figure 8 in the left - right direction) of the middle layer board 200, one first cable channel 220 is provided on each side. The power conversion equipment of the upper and lower cabins on one side of the cabin body 100 is routed and connected through the first cable channel 220, and the power conversion equipment of the upper and lower cabins on the other side of the cabin body 100 is routed and connected through the second cable channel 220. A second cable channel 111 can be provided on the bottom board 110 of the cabin body 100. The second cable channel 111 is used for external wiring to enter the cabin body 100. The number and position of the second cable channels 111 can be correspondingly set with the first cable channels 220, that is, one second cable channel 111 is provided under each first cable channel 220.

[0072] Providing cable channels on the middle layer board 200 and the bottom board 110 facilitates the entry of external wiring into the cabin body 100 and the electrical connection of the power conversion equipment between the upper and lower two - layer cabins of the cabin body 100.

[0073] In some embodiments, the multi - layer prefabricated cabin 10 is divided into multiple cabin segments along the length direction or the width direction, and the adjacent cabin segments are connected by welding or fasteners or other means. For example, the multi - layer prefabricated cabin 10 is divided into two cabin segments along the width direction, which are respectively Figure 7 the first cabin segment 11 on the left and Figure 7 the second cabin segment 12 on the right. The first cabin segment 11 and the second cabin segment 12 are welded together. It should be understood that according to the dimensions of the multi - layer prefabricated cabin 10 in the length direction or the width direction, the multi - layer prefabricated cabin 10 can be divided into multiple cabin segments along the length direction or the width direction. At the same time, according to the dimensions of the multi - layer prefabricated cabin 10 in the height direction, the multi - layer prefabricated cabin 10 can also be divided into multiple cabin segments along the height direction.

[0074] Dividing the multi - layer prefabricated cabin 10 into multiple cabin segments along the length direction can achieve module segmentation. On the one hand, it can be prefabricated in the factory to shorten the construction period of the substation. On the other hand, it can reduce the difficulty of road transportation and the road transportation cost.

[0075] This application also provides a substation, which includes a multi - layer prefabricated cabin 10 and power conversion equipment, and the power conversion equipment is arranged inside the multi - layer prefabricated cabin 10.

[0076] For example, a first cable channel 220 and a second cable channel 111 are provided in the middle area in the length direction of the first cabin section 11. Voltage conversion devices 20 are provided on both sides in the length direction of the second cable channel 111, and switch devices 30 are provided on both sides in the length direction of the first cable channel 220. A fence 600 can be provided in the area where the voltage conversion devices 20 of the first cabin section 11 and the second cable channel 111 are located to separately isolate the voltage conversion devices 20 and the second cable channel 111. An access door 142 is provided on the fence 600 of the first cabin section 11 or on the side wall 130 of the voltage conversion device 20 of the first cabin section 11 for entering the area enclosed by the fence 600. Correspondingly, a fence 600 and an access door 142 can also be provided in the area where the first cable channel 220 and the switch devices 30 are located.

[0077] The second cabin section 12 is provided with a first cable channel 220 and a second cable channel 111. A power distribution device 40 is provided on one side (e.g., the upper side) in the length direction of the second cable channel 111, and a switch device 30 is provided on the other side (e.g., the lower side) in the length direction of the second cable channel 111. The power conversion equipment includes voltage conversion devices 20, switch devices 30, power distribution devices 40, etc. A channel hole 210 can be provided on the side of the first cable channel 220 away from the first cabin section 11, and power conversion devices can be provided on both sides in the length direction of the first cable channel 220 as appropriate.

[0078] An outdoor air conditioner 51 is further provided in the first - layer cabin of the second cabin section 12. The outdoor air conditioner 51 can be provided on the bottom plate 110 and on the side away from the first cabin section 11 of the power distribution device 40. Ventilation holes can be provided in the area of the side wall 130 opposite to the outdoor air conditioner 51 for the outdoor air conditioner 51 to exhaust air. An indoor air conditioner 52 can also be provided in the first - layer cabin of the second cabin section 12. The indoor air conditioner 52 can be provided on one side wall 130 in the length direction or on both side walls 130, and in the area of the side wall 130 close to the middle - layer board 200. The second - layer of the second cabin section 12 is also provided with an indoor air conditioner 52. An access hatch 141 can be provided on the side wall 130 of the first - layer cabin of the second cabin section 12. In addition, an emergency escape module 700 can be provided on the side wall 130 of the second - layer cabin of the second cabin section 12. The emergency escape module 700 can be located on the side wall 130 opposite to the first cabin section 11. When an emergency such as a fire occurs in the first - layer cabin, the operation and maintenance personnel do not have to go down to the first - layer cabin and can directly escape from the cabin body 100 through the emergency escape module 700 from the second - layer cabin.

[0079] It should be understood that the positions of the access hatch 141, the access door 142, the voltage conversion device 20, the switch device 30, the power distribution device 40, the outdoor air conditioner 51, the indoor air conditioner 52, and the emergency escape module 700 are not limited to the above examples, and their specific positions can be adjusted as appropriate.

[0080] In this embodiment, the substation includes multiple prefabricated cabins 10. The cabin body 100 includes n layers of cabins arranged in sequence from bottom to top in the height direction. Two adjacent cabins are separated by an intermediate layer plate 200, where n is an integer greater than or equal to 2. A passage hole 210 is formed in the intermediate layer plate 200. The boarding ladder 300 is provided in at least one of the cabins other than the nth layer cabin of the cabin body 100. The boarding ladder 300 is connected to the side wall 130 of the cabin body 100 or the intermediate layer plate 200. The boarding ladder 300 can be folded or telescoped to form an unfolded state and a stored state. In the unfolded state, the boarding ladder 300 connects the passage hole 210 and the bottom plate 110 of the cabin body 100 or the intermediate layer plate 200 below the passage hole 210. In the stored state, the boarding ladder 300 is located in the side wall 130 of the cabin body 100, inside the side wall 130 of the cabin body 100, in the passage hole 210, or below the intermediate layer plate 200. The boarding ladder 300 can be unfolded or folded and stored, reducing the storage volume of the boarding ladder 300 and solving the problem that the boarding ladder 300 occupies the installation space and maintenance space of the substation equipment in the cabin where it is located.

[0081] The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0082] In this application, unless otherwise clearly specified and limited, terms such as "assembly", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0083] In the description of this specification, the description with reference to terms such as "some embodiments", "exemplarily", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0084] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and the description of the present application shall fall within the scope covered by the patent of the present application.

Claims

1. A multi-layer prefabricated cabin, characterized in that, Comprising: A cabin body, including n layers of cabins arranged in sequence from bottom to top in the height direction, adjacent two of the cabins are separated by an intermediate layer plate, n is an integer greater than or equal to 2, and a passage hole is provided on the intermediate layer plate; A boarding ladder, provided in at least one of the cabins other than the nth-layer cabin of the cabin body, the boarding ladder is connected to the side wall of the cabin body or the intermediate layer plate, the boarding ladder can be folded or telescoped to form an unfolded state and a stored state, in the unfolded state, the boarding ladder connects the passage hole and the bottom plate of the cabin body or the intermediate layer plate below the passage hole, in the stored state, the boarding ladder is located in the side wall of the cabin body, inside the side wall of the cabin body, in the passage hole or below the intermediate layer plate.

2. The multi-layer prefabricated cabin according to claim 1, characterized in that, A receiving groove is provided on the side wall of the cabin body, and in the stored state, the boarding ladder is located in the receiving groove.

3. The multi-layer prefabricated cabin according to claim 2, characterized in that, The boarding ladder includes a first support assembly, a second support assembly, and a plurality of pedals provided between the first support assembly and the second support assembly, both ends of the pedals are hingedly connected to the first support assembly and the second support assembly respectively, and the first support assembly is connected to the bottom surface of the receiving groove.

4. The multi-layer prefabricated cabin according to claim 3, wherein In the unfolded state, the pedals are parallel to the horizontal direction.

5. The multi-layer prefabricated cabin according to claim 4, wherein, The horizontal direction includes a length direction and a width direction perpendicular to each other, and the first support assembly and the second support assembly are spaced apart along the width direction; Both the first support assembly and the second support assembly include inclined connecting rods, horizontal connecting rods, and vertical connecting rods, the horizontal connecting rods extend along the length direction, a plurality of the horizontal connecting rods are spaced apart along the length direction and the height direction, the first ends of all the horizontal connecting rods are connected to the inclined connecting rods, in the first support assembly: the horizontal connecting rods are located above the inclined connecting rods, in the second support assembly: the horizontal connecting rods are located below the inclined connecting rods, the vertical connecting rods extend along the height direction, the vertical connecting rods connect the second ends of the horizontal connecting rods and the inclined connecting rods, the pedals are connected to the horizontal connecting rods of the first support assembly and the horizontal connecting rods of the second support assembly, and the inclined connecting rod of the first support assembly is connected to the bottom surface of the receiving groove.

6. The multi-layer prefabricated cabin according to claim 5, characterized in that, The boarding ladder further includes a telescopic rod, the first end of the telescopic rod is hingedly connected to the inclined connecting rod of the first support assembly, and the second end of the telescopic rod is hingedly connected to the pedal.

7. The multi-layer prefabricated cabin according to claim 3, characterized in that The multi-layer prefabricated cabin further includes a linkage isolation device, the linkage isolation device is provided on one side of the intermediate layer plate close to the bottom plate of the cabin body, the linkage isolation device is used to open or close the passage hole, the linkage isolation device includes a linkage partition plate and a slide rail, the slide rail is provided on one side of the intermediate layer plate close to the bottom plate of the cabin body, and the linkage partition plate is slidably provided on the slide rail.

8. The multi-layer prefabricated cabin according to claim 7, wherein The linkage partition plate is movably connected to the second support assembly, and the second support assembly can drive the linkage partition plate to slide in the slide rail to open or close the passage hole.

9. The multi-layer prefabricated cabin according to claim 1, wherein In the deployed state, the boarding ladder is connected to the first side of the passage hole. The multi-layer prefabricated cabin further includes a guardrail, which is arranged on the side of the intermediate layer plate away from the bottom plate of the cabin body. The guardrail surrounds the passage hole and is arranged on at least one of the other three sides except the first side of the passage hole.

10. A substation, characterized in that, Comprising: The multi-layer prefabricated cabin according to any one of claims 1 to 9; Power transformation equipment, arranged in the multi-layer prefabricated cabin.

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