Multilayer prefabricated cabin and transformer substation

Abstract

The invention 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 distribution equipment, specifically relating to a multi-layer prefabricated cabin and substation. Background Technology

[0002] Prefabricated substations are manufactured in factories, completing most of the assembly and commissioning work there, reducing on-site construction time. Compared to traditional substations, the construction cycle can be shortened by 50% or more. Meanwhile, with increasingly scarce land resources, multi-story substations with two or more floors are rapidly developing, significantly reducing the land area required. Furthermore, multi-story substations have a compact structure and rational layout, facilitating road transport and better adapting to different terrains and environments, such as narrow streets, mountainous areas, or densely built-up areas.

[0003] Multi-level substations require staircases to serve as inter-floor access. In existing multi-level substations, these staircases are located either externally or internally. External staircases increase the substation's footprint, affecting its overall aesthetics, and make access for operators (i.e., operation and maintenance personnel) difficult due to weather conditions. Internal staircases, on the other hand, encroach on installation and maintenance space for electrical equipment. Summary of the Invention

[0004] The purpose of this application is to provide a multi-story prefabricated cabin and substation, which at least solves the problem of inter-floor staircases occupying the installation and maintenance space of power equipment.

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

[0006] The cabin includes n layers of cabins arranged sequentially from bottom to top along the height direction, with adjacent cabins separated by an intermediate layer, where n is an integer greater than or equal to 2, and the intermediate layer has a passage hole.

[0007] A boarding ladder is provided in at least one of the other compartments besides the nth-level compartment of the cabin. The boarding ladder is connected to the side wall or the intermediate shelf of the cabin. The boarding ladder can be folded or extended to form an unfolded state and a retracted state. In the unfolded state, the boarding ladder is connected to the passage hole and the bottom plate or the intermediate shelf of the cabin below the passage hole. In the retracted state, the boarding ladder is located in the side wall of the cabin, inside the side wall of the cabin, in the passage hole, or below the intermediate shelf.

[0008] Optionally, the side wall of the cabin is provided with a receiving groove, and in the stored state, the boarding 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 pedals disposed between the first support assembly and the second support assembly. The two ends of the pedals are respectively hinged to the first support assembly and the second support assembly, and the first support assembly is connected to the bottom surface of the receiving groove.

[0010] Optionally, in the deployed state, the pedal is parallel to the horizontal direction.

[0011] Optionally, the horizontal direction includes a length direction and a width direction that are perpendicular to each other, and 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 an inclined link, a horizontal link, and a vertical link. The horizontal link extends along the length direction, and multiple horizontal links are spaced apart along the length direction and the height direction. The first end of all horizontal links is connected to the inclined link. In the first support assembly, the horizontal link is located above the inclined link. In the second support assembly, the horizontal link is located below the inclined link. The vertical link extends along the height direction and connects the second end of the horizontal link to the inclined link. The pedal is connected to the horizontal link of both the first and second support assemblies. The inclined link 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 which is hinged to the inclined connecting rod of the first support assembly, and the second end of which is hinged to the footplate.

[0014] Optionally, the multi-layer prefabricated cabin further includes a linkage isolation device. The linkage isolation device is disposed on the side of the intermediate layer plate near 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 and a slide rail. The slide rail is disposed on the side of the intermediate layer plate near the bottom plate of the cabin body. The linkage partition is slidably disposed on the slide rail.

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

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

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

[0018] The multi-layer prefabricated cabin;

[0019] The power equipment is installed inside the multi-layer prefabricated cabin.

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

[0021] In this application, the cabin includes n layers of compartments arranged sequentially from bottom to top along the height direction. Adjacent compartments are separated by intermediate shelves, where n is an integer greater than or equal to 2. Passage holes are provided on the intermediate shelves. A boarding ladder is located in at least one of the compartments other than the nth layer. The boarding ladder is connected to the side wall or intermediate shelf of the cabin. The boarding ladder can be folded or extended to form an unfolded state and a retracted state. In the unfolded state, the boarding ladder connects to the passage hole and the bottom plate or intermediate shelf of the cabin below the passage hole. In the retracted state, the boarding ladder is located in the side wall of the cabin, inside the side wall of the cabin, in the passage hole, or below the intermediate shelf. The ability to unfold or fold the boarding ladder reduces its storage volume and solves the problem of the boarding ladder occupying the installation and maintenance space of the electrical equipment in the compartment.

[0022] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

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

[0026] Figure 2 This is a schematic diagram of the stowage state of the boarding ladder in the embodiments of this application.

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

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

[0029] Figure 5 yes Figure 4 A magnified view of a portion of position A in the middle.

[0030] Figure 6 This is a schematic diagram of the linkage isolation device in the embodiments of this application.

[0031] Figure 7 This is a schematic diagram of the first floor of a multi-layer prefabricated cabin in an embodiment of this application.

[0032] Figure 8 This is a schematic diagram of the second floor of the multi-layer prefabricated cabin in the embodiments of this application.

[0033] Figure 9 yes Figure 7 A perspective diagram from direction B.

[0034] Figure 10 yes Figure 7 A perspective diagram along the C-axis.

[0035] Explanation of reference numerals in the attached figures:

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

[0037] 100. Cabin; 110. Floor; 111. Second cable channel; 120. Top plate; 130. Side wall; 131. Reception slot; 141. Cabin door; 142. Inspection door; 200. Intermediate shelf; 210. Passage hole; 220. First cable channel; 300. Boarding ladder; 310. First support assembly; 311. Inclined link; 312. Horizontal link; 313. Vertical link; 320. Second support assembly; 330. Step; 340. Telescopic rod; 400. Linked isolation device; 410. Linked partition; 420. Slide rail; 500. Guardrail; 600. Enclosure; 700. Emergency escape module;

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

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

[0040] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0041] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting 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 floor 200, and an access ladder 300. The cabin body 100 includes a floor 110 and a top 120 spaced apart, and a side wall 130 disposed between the floor 110 and the top 120, the side wall 130 surrounding the edges of the floor 110 and the top 120. The floor 110, the top 120, and the side wall 130 can be welded together or connected by fasteners. The side wall 130 is a cylindrical structure with a rectangular cross-section, and the floor 110, the top 120, and the side wall 130 enclose a space for installing electrical equipment.

[0043] The hull 100 includes n layers of compartments arranged sequentially from bottom to top along the height direction. Adjacent compartments are separated by intermediate shelves 200, where n is an integer greater than or equal to 2. For example, if n equals 2, one intermediate shelf 200 separates the hull 100 into two layers of compartments; if n equals 3, two intermediate shelves 200 are spaced apart along the height direction, and the two intermediate shelves 200 separate the hull 100 into three layers of compartments. For ease of understanding, this embodiment describes the hull 100 as having two layers of compartments. When the hull 100 has three or more layers of compartments, the principle is the same as when the hull 100 has two layers of compartments, so it will not be described again. The intermediate shelf 200 has passage holes 210.

[0044] The boarding ladder 300 is installed in at least one of the other compartments besides the nth-level compartment of the cabin 100, serving as an inter-level passage between two adjacent compartments. The boarding ladder 300 is connected to the side wall 130 or the intermediate shelf 200 of the cabin 100, and the boarding ladder 300 can be folded or extended to form an unfolded state and a stowed state.

[0045] In the deployed state, the boarding ladder 300 connects the passageway 210 to the bottom plate 110 or intermediate shelf 200 of the cabin 100 below the passageway 210. For example, when the cabin 100 is divided into two layers, the boarding ladder 300 can be installed in the first layer cabin from bottom to top, and the boarding ladder 300 can connect the bottom plate 110 of the cabin 100 to the passageway 210 at the top of the first layer cabin; when the cabin 100 is divided into three layers, the boarding ladder 300 can be installed in the first layer cabin from bottom to top and / or the second layer cabin, and the boarding ladder 300 in the second layer cabin can connect the intermediate shelf 200 at the bottom of the second layer cabin and the passageway 210 at the top of the second layer cabin. In the retracted 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 passageway 210, or below the intermediate shelf 200.

[0046] For example, when the boarding ladder 300 is connected to the side wall 130 of the cabin 100, the boarding ladder 300 can be folded. When not in use, the boarding ladder 300 can be folded and stored on one side or in the side wall 130 of the cabin 100, reducing or avoiding the boarding ladder 300 occupying the installation and maintenance space of the transformer equipment in the first-floor cabin. When boarding is required, the boarding ladder 300 can be unfolded so that the boarding ladder 300 connects the bottom plate 110 of the cabin 100 and the passage hole 210 on the top of the first-floor cabin. When the boarding ladder 300 is connected to the intermediate shelf 200, the boarding ladder 300 can be extended, retracted and folded. When not in use, the boarding ladder 300 can be shortened and folded under the intermediate shelf 200 or into the passage hole 210, so that the boarding ladder 300 is roughly parallel to the intermediate shelf 200, without occupying the installation space and maintenance space of the transformer equipment in the first-floor compartment. When boarding is required, the boarding ladder 300 can be unfolded, so that the boarding ladder 300 connects the bottom plate 110 of the cabin 100 and the passage hole 210 on the top of the first-floor compartment.

[0047] It should be noted that the connection between the access ladder 300 and the passageway 210 and the bottom plate 110 of the cabin 100 below the passageway 210 means that maintenance personnel on the bottom plate 110 of the cabin 100 can access the second-level cabin via the access ladder 300. The access ladder 300 does not need to contact the bottom plate 110 or the intermediate shelf 200 of the cabin 100. Each intermediate shelf 200 can be integrally installed inside the cabin 100, but is not limited to this. The intermediate shelf 200 can also extend into the side wall 130 of the cabin 100 or penetrate through the side wall 130 of the cabin 100 and extend outside the cabin 100, depending on the specific situation. That is to say, the side wall 130 can be vertically segmented. A section of side wall 130 can be set between the bottom plate 110 and the intermediate shelf 200, and a section of side wall 130 can be set between the intermediate shelf 200 and the top plate 120.

[0048] In existing multi-level substations, the staircases between floors are located either outside or inside the substation. When the staircases are located outside, it increases the substation's footprint, affecting its overall aesthetics, and makes access for maintenance personnel difficult due to weather conditions. When the staircases are located inside, they encroach on the installation and maintenance space for electrical equipment.

[0049] In this embodiment, the cabin 100 includes n layers of cabins arranged sequentially from bottom to top along the height direction. Adjacent cabins are separated by an intermediate shelf 200, where n is an integer greater than or equal to 2. The intermediate shelf 200 has a passage hole 210. The boarding ladder 300 is installed in at least one of the other cabins besides the nth layer of the cabin 100. The boarding ladder 300 is connected to the side wall 130 or the intermediate shelf 200 of the cabin 100. The boarding ladder 300 can be folded or extended to form an unfolded state and a retracted state. In the unfolded state, the boarding ladder 300 connects the passage hole 210 to the bottom plate 110 or the intermediate shelf 200 of the cabin 100 below the passage hole 210. In the retracted 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 shelf 200. The boarding ladder 300 can be unfolded or folded for storage, reducing its storage volume and solving the problem of the boarding ladder 300 occupying the installation and maintenance space of the electrical equipment in the compartment.

[0050] In some embodiments, the side wall 130 of the cabin 100 is provided with a receiving groove 131. In the retracted 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 folded and stored in the storage slot 131 without occupying the installation and maintenance space of the power equipment in the first-floor 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 steps 330 disposed between the first support assembly 310 and the second support assembly 320. The two ends of each step 330 are hinged to the first support assembly 310 and the second support assembly 320, respectively. The first support assembly 310 is connected to the bottom surface of the receiving groove 131. The second support assembly 320 is rotatable about the hinge axis between the step 330 and the first support assembly 310, allowing the boarding ladder 300 to be folded and stowed or unfolded.

[0053] The two ends of the step 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 between the step 330 and the first support assembly 310, so as to realize the folding and storage or unfolding of the boarding ladder 300. This design makes the thickness of the boarding ladder 300 in the storage state small enough to be folded and stored in the receiving slot 131 as a whole.

[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 grid strips, with multiple grid strips arranged in a crisscross pattern within the rectangular frame. In the unfolded state, the pedal 330 is parallel to the horizontal direction, meaning that the upper and lower ends of the rectangular frame of the pedal 330 are parallel to the horizontal direction.

[0055] When deployed, the footplate 330 is parallel to the horizontal direction, making it convenient for maintenance personnel to access the cabin via the boarding ladder 300.

[0056] See Figures 2 to 5 As shown, the horizontal direction includes the mutually perpendicular length direction and width direction (the length direction is...). Figure 1 Left and right directions, width direction is Figure 1 (in the front-to-back direction), the first support assembly 310 and the second support assembly 320 are spaced apart along the width direction. Both the first support assembly 310 and the second support assembly 320 include an inclined connecting rod 311, a horizontal connecting rod 312, and a vertical connecting rod 313. The horizontal connecting rod 312 extends along the length direction, and multiple horizontal connecting rods 312 are spaced apart along the length and height directions.

[0057] All horizontal connecting rods 312 have their first ends connected to 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. A vertical connecting rod 313 extends along the height direction, connecting the second end of the horizontal connecting rods 312 to the inclined connecting rods 311, and supporting the horizontal connecting rods 312. The pedal 330 is connected to both the horizontal connecting rods 312 of the first support assembly 310 and the second support assembly 320. The inclined connecting rod 311 of the first support assembly 310 is connected to the bottom surface of the receiving groove 131.

[0058] The horizontal connecting rod 312 is used to connect the pedal 330, so that the pedal 330 is parallel to the horizontal direction. The vertical connecting rod 313 plays the role of supporting the horizontal connecting rod 312, which improves the structural strength of the boarding ladder 300.

[0059] In some embodiments, the boarding ladder 300 further includes a telescopic rod 340, a first end of which is hinged to an inclined connecting rod 311 of the first support assembly 310, and a second end of which is hinged to a step 330. Figure 3 As shown. The telescopic pole 340 includes pneumatic telescopic poles, hydraulic telescopic poles, or electric telescopic poles, etc.

[0060] The first support assembly 310 and the step 330 are connected by a telescopic rod 340, which provides assistance during the folding and storage of the boarding ladder 300. Furthermore, the telescopic rod 340 also acts as a limiter, preventing the boarding ladder 300 from folding during use and unfolding when not in use.

[0061] See Figure 6 As shown, the multi-layer prefabricated cabin 10 also includes a linkage isolation device 400. The linkage isolation device 400 is disposed on the side of the intermediate layer 200 near the bottom plate 110 of the cabin body 100. The linkage isolation device 400 is used to open or close the passage opening 210. The linkage isolation device 400 includes a linkage partition 410 and a slide rail 420. The slide rail 420 is disposed on the side of the intermediate layer 200 near the bottom plate 110 of the cabin body 100, and the linkage partition 410 is slidably disposed on the slide rail 420. The linkage partition 410 may be made of a high-temperature resistant fireproof material.

[0062] It should be noted that the linkage isolation device 400 can be set on the side of the intermediate shelf 200 near the bottom plate 110 of the cabin 100, but it is not limited to this. The linkage isolation device 400 can also be set on the side of the intermediate shelf 200 away from the bottom plate 110 of the cabin 100, depending on the situation.

[0063] When the boarding ladder 300 is stored in the receiving slot 131, the linkage partition 410 can be slid out to close the passage hole 210, isolating the two compartments connected by the passage hole 210, thus delaying or preventing the spread of a fire or other danger from one compartment to the other.

[0064] In some embodiments, the linkage partition 410 is movably connected to the second support assembly 320, and the second support assembly 320 can drive the linkage partition 410 to slide within the slide rail 420, thereby opening or closing the channel hole 210. For example, the linkage partition 410 has a groove extending along its length on the side near the second support assembly 320, and the inclined connecting rod 311 of the second support assembly 320 has a groove extending along its extension direction on the side near the linkage partition 410. A slider is provided in the two grooves to connect the inclined connecting rod 311 and the linkage partition 410. When the second support assembly 320 rotates, the slider slides in the two grooves, causing 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, which improves 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 are movably connected, meaning that the linkage partition 410 and the second support assembly 320 are mechanically linked. However, this is not the only possibility; the linkage partition 410 and the second support assembly 320 can also be linked by a controller, depending on the specific circumstances. For example, the linkage isolation device 400 also includes a driver, which drives the linkage partition 410 to slide and the telescopic rod 340 to drive 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 via the driver, and simultaneously controls the pedal 330 to rotate via the telescopic rod 340, unfolding the boarding ladder 300. When not in use, the controller controls the pedal 330 to rotate via the telescopic rod 340, folding the boarding ladder 300 for storage, and simultaneously controls the linkage partition 410 to close the passage hole 210 via the driver.

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

[0068] For example, the boarding ladder 300 is mounted on the side wall 130 of the cabin 100, and the guardrail 500 is mounted on the second and third sides of the passageway 210. The first and second sides of the passageway 210 are opposite each other in the longitudinal direction, and the third and fourth sides of the passageway 210 are opposite each other in the width direction. The fourth side of the passageway 210 is the side closest to the receiving slot 131. Furthermore, the guardrail 500 can be fixedly mounted on the intermediate shelf 200, but is not limited to this. The guardrail 500 can also be designed as a detachable structure or folded onto the passageway 210, depending on the specific circumstances.

[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 safety risks.

[0070] See Figures 7 to 10 The first-floor compartment of the cabin 100, from bottom to top, is equipped with boarding doors 141 for personnel entry and exit. Boarding doors 141 are used for emergency escape and daily access to the first-floor compartment of the cabin 100. The number of boarding doors 141 can be set according to requirements. For example, two boarding doors 141 can be arranged along the length of the cabin 100. Figure 7 and Figure 8 Both sides (in the middle and upper directions).

[0071] A first cable channel 220 is provided on the intermediate layer 200, which is used for inter-layer cable routing. For example, in the width direction of the intermediate layer 200 ( Figure 7 and Figure 8 On each side (left and right direction) of the cabin 100, a first cable channel 220 is provided. The power equipment of the upper and lower compartments on one side of the cabin 100 is connected through the first first cable channel 220, and the power equipment of the upper and lower compartments on the other side of the cabin 100 is connected through the second first cable channel 220. A second cable channel 111 can be provided on the bottom plate 110 of the cabin 100. The second cable channel 111 is used for external cables to enter the cabin 100. The number and position of the second cable channels 111 can be set to correspond to the first cable channels 220, that is, a second cable channel 111 is provided below each first cable channel 220.

[0072] Cable channels are provided on the intermediate layer plate 200 and the bottom plate 110 to facilitate external wiring into the cabin 100 and electrical connection of the power equipment between the upper and lower compartments of the cabin 100.

[0073] In some embodiments, the multi-layer prefabricated cabin 10 is divided into multiple sections along its length or width, and adjacent sections are connected by welding or fasteners. For example, the multi-layer prefabricated cabin 10 is divided into two sections along its width, namely... Figure 7 Left side first compartment 11 and Figure 7 The second compartment 12 on the right side is welded to the first compartment 11. It should be understood that, based on the length or width dimensions of the multi-layer prefabricated compartment 10, the multi-layer prefabricated compartment 10 can be divided into multiple compartments along the length or width direction, and also based on the height dimensions of the multi-layer prefabricated compartment 10, the multi-layer prefabricated compartment 10 can be divided into multiple compartments along the height direction.

[0074] The multi-layer prefabricated cabin 10 is divided into multiple sections along its length, which can realize modular division. On the one hand, it can be prefabricated in the factory to shorten the construction cycle of the substation, and on the other hand, it can reduce the difficulty and cost of road transportation.

[0075] This application also provides a substation, which includes a multi-story prefabricated cabin 10 and power equipment, the power equipment being installed within the multi-story prefabricated cabin 10.

[0076] For example, a first cable channel 220 and a second cable channel 111 are provided in the middle area along the length of the first section 11. Transformer equipment 20 is provided on both sides along the length of the second cable channel 111, and switchgear 30 is provided on both sides along the length of the first cable channel 220. A fence 600 can be provided in the area where the transformer equipment 20 and the second cable channel 111 of the first section 11 are located to isolate the transformer equipment 20 and the second cable channel 111 separately. An inspection door 142 is provided on the fence 600 of the first section 11 or on the side wall 130 of the transformer equipment 20 of the first section 11 for access to the area enclosed by the fence 600. Correspondingly, a fence 600 and an inspection door 142 can also be provided in the area where the first cable channel 220 and the switchgear 30 are located.

[0077] The second section 12 is equipped with a first cable channel 220 and a second cable channel 111. A power distribution device 40 is installed on one side (e.g., the upper side) along the length of the second cable channel 111, and a switchgear 30 is installed on the other side (e.g., the lower side) along the length of the second cable channel 111. The power distribution device includes a transformer 20, a switchgear 30, and a power distribution device 40, etc. The channel opening 210 can be located on the side of the first cable channel 220 away from the first section 11, and power distribution devices can be installed on both sides of the first cable channel 220 as needed.

[0078] The first level of the second section 12 is also equipped with an outdoor air conditioning unit 51, which can be installed on the floor 110 and located on the side of the power distribution equipment 40 away from the first section 11. Ventilation holes can be provided on the side wall 130 facing the outdoor air conditioning unit 51 for exhaust ventilation. The first level of the second section 12 can also be equipped with an indoor air conditioning unit 52, which can be installed on one or both side walls 130 along the length, and located on the side wall 130 near the intermediate shelf 200. An indoor air conditioning unit 52 is also provided on the second level of the second section 12. A boarding door 141 can be installed on the side wall 130 of the first level of the second section 12. Furthermore, an emergency escape module 700 can be installed on the side wall 130 of the second level of the second section 12, located on the side wall 130 facing the first section 11. In the event of an emergency such as a fire in the first-floor compartment, maintenance personnel do not need to go down to the first-floor compartment; they can escape directly from the second-floor compartment 100 through the emergency escape module 700.

[0079] It should be understood that the locations of boarding door 141, maintenance door 142, transformer equipment 20, switch equipment 30, power distribution equipment 40, air conditioner outdoor unit 51, air conditioner indoor unit 52 and emergency escape module 700 are not limited to the above examples, and their specific locations may be adjusted as appropriate.

[0080] In this embodiment, the substation includes a multi-layer prefabricated cabin 10. The cabin body 100 includes n layers of cabins arranged sequentially from bottom to top along the height direction. Adjacent cabins are separated by an intermediate shelf 200, where n is an integer greater than or equal to 2. The intermediate shelf 200 has a passage hole 210. The boarding ladder 300 is installed in at least one of the other cabins except for the nth layer of the cabin body 100. The boarding ladder 300 is connected to the side wall 130 of the cabin body 100 or the intermediate shelf 200. The boarding ladder 300 can be folded or extended to form an unfolded state and a retracted state. In the unfolded state, the boarding ladder 300 connects the passage hole 210 to the bottom plate 110 or the intermediate shelf 200 of the cabin body 100 below the passage hole 210. In the retracted 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 shelf 200. The boarding ladder 300 can be unfolded or folded for storage, reducing its storage volume and solving the problem of the boarding ladder 300 occupying the installation and maintenance space of the electrical equipment in the compartment.

[0081] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0082] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0083] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any 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.

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

Claims

1. A multi-layer prefabricated cabin, characterized in that, include: The cabin includes n layers of cabins arranged sequentially from bottom to top along the height direction, with adjacent cabins separated by an intermediate layer, where n is an integer greater than or equal to 2, and the intermediate layer has a passage hole. A boarding ladder is provided in at least one of the other compartments besides the nth-level compartment of the cabin. The boarding ladder is connected to the side wall or the intermediate shelf of the cabin. The boarding ladder can be folded or extended to form an unfolded state and a retracted state. In the unfolded state, the boarding ladder is connected to the passage hole and the bottom plate or the intermediate shelf of the cabin below the passage hole. In the retracted state, the boarding ladder is located in the side wall of the cabin, inside the side wall of the cabin, in the passage hole, or below the intermediate shelf.

2. The multi-layer prefabricated cabin according to claim 1, characterized in that, The side wall of the cabin is provided with a receiving groove, and in the storage 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 disposed between the first support assembly and the second support assembly. The two ends of the pedals are respectively hinged to the first support assembly and the second support assembly, 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, characterized in that, In the deployed state, the pedal is parallel to the horizontal direction.

5. The multi-layer prefabricated cabin according to claim 4, characterized in that, The horizontal direction includes a length direction and a width direction that are 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 an inclined link, a horizontal link, and a vertical link. The horizontal link extends along the length direction, and multiple horizontal links are spaced apart along the length direction and the height direction. The first end of all horizontal links is connected to the inclined link. In the first support assembly, the horizontal link is located above the inclined link. In the second support assembly, the horizontal link is located below the inclined link. The vertical link extends along the height direction and connects the second end of the horizontal link to the inclined link. The pedal is connected to the horizontal link of both the first and second support assemblies. The inclined link 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 also includes a telescopic rod, the first end of which is hinged to the inclined connecting rod of the first support assembly, and the second end of which is hinged to the pedal.

7. The multi-layer prefabricated cabin according to claim 3, characterized in that, The multi-layer prefabricated cabin also includes a linkage isolation device. The linkage isolation device is disposed on the side of the intermediate layer plate near 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 and a slide rail. The slide rail is disposed on the side of the intermediate layer plate near the bottom plate of the cabin body. The linkage partition is slidably disposed on the slide rail.

8. The multi-layer prefabricated cabin according to claim 7, characterized in that, The linkage partition is movably connected to the second support assembly, and the second support assembly can drive the linkage partition to slide within the slide rail, thereby opening or closing the channel hole.

9. The multi-layer prefabricated cabin according to claim 1, characterized in that, In the deployed state, the boarding ladder is connected to the first side of the passageway opening. The multi-layer prefabricated cabin also includes a guardrail, which is disposed on the side of the intermediate layer away from the bottom plate of the cabin body. The guardrail surrounds the passageway opening and is disposed on at least one of the other three sides besides the first side of the passageway opening.

10. A substation, characterized in that, include: The multi-layer prefabricated cabin as described in any one of claims 1 to 9; The power equipment is installed inside the multi-layer prefabricated cabin.

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