Self-heat-dissipation box-type prepackaged substation

Abstract

This invention discloses a self-cooling prefabricated box-type substation, including a bottom sealing structure. Side baffle structures are detachably installed on the bottom sealing structure, and the bottom sealing structure is also detachably installed on top of the side baffle structures, achieving a symmetrical fixed arrangement. A top sealing structure is detachably installed on top of the side baffle structures, and the top sealing structure can also be installed on the bottom sealing structure. This invention relates to the field of substation technology. This invention adopts a fully modular and detachable structure; the bottom sealing structure, side baffle structure, and top sealing structure can all be disassembled for transport, reducing the volume of each component and lowering transportation difficulty and logistics costs. On-site assembly can be completed by slot insertion and bolt tightening, eliminating the need for welding and additional drilling, simplifying the assembly process and shortening the on-site installation cycle.

Description

Technical Field

[0001] This invention relates to the field of substation technology, specifically to a self-heating prefabricated box-type substation. Background Technology

[0002] Prefabricated box-type substations are compact sets of power equipment that integrate high-voltage switches, distribution transformers, and low-voltage power distribution devices. With advantages such as small footprint, short construction period, flexible deployment, and overall relocation, they are widely used in urban power grid transformation, residential communities, industrial parks, rural power distribution, and new energy power plants. They are also one of the mainstream equipment for current power distribution network construction and upgrading. In terms of enclosure assembly and structural design, most mainstream prefabricated substations currently adopt an integrated welded frame structure, which is welded and formed in the factory before being transported to the site for installation. On the other hand, the integrated enclosure is large in size and heavy in weight, and the internal electrical components are prone to collision with the enclosure during transportation, causing damage to parts. At the same time, it has high requirements for transportation vehicles and road conditions, resulting in high logistics costs. Furthermore, the welded enclosure is of fixed specifications and cannot be flexibly adjusted according to the power distribution capacity and site size, resulting in poor product versatility. In terms of heat dissipation system design, poor heat dissipation is the most prominent common problem in traditional box-type substations. The transformers, switchgear and other equipment inside the box will continuously generate a lot of heat during operation. Traditional equipment mostly adopts the heat dissipation mode of fixed ventilation holes, side wall ventilation windows or fixed fans, and the ventilation area cannot be dynamically adjusted with the temperature change inside the box. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a self-heating prefabricated box-type substation to address the shortcomings of the prior art, thereby solving the problems of difficult overall assembly and disassembly, non-adjustable size, weak expandability, rigid heat dissipation method and poor adaptability to various scenarios.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a self-cooling prefabricated box-type substation, comprising a bottom sealing structure, on which a side baffle structure is detachably installed, and on the top of the side baffle structure, a bottom sealing structure is detachably installed to achieve symmetrical fixed installation; on the top of the side baffle structure, a top sealing structure is detachably installed, and the top sealing structure can also be set on the bottom sealing structure; the bottom sealing structure is used to adjust according to the actual size to achieve a frame structure that is easy to assemble and to install the side baffle structure, thereby fixing the side baffle structure and forming a box; the top sealing structure is used to fasten the top of the side baffle structure and can achieve self-adaptive heat dissipation.

[0005] Preferably, the bottom sealing structure includes a plurality of first corner seats, a plurality of adjustable seats, a plurality of first locking blocks, a plurality of first bolts, a plurality of first connecting rods, and a box bottom; the first corner seats are L-shaped, and each of the upper walls at both ends of the first corner seats has a communicating L-shaped side plate groove; each of the inner walls at both ends of the first corner seats has a first trapezoidal groove corresponding to the side plate groove; the middle of the first trapezoidal groove has a first slot communicating with the side plate groove; the middle of the middle of the inner walls at both ends of the first corner seats has a second trapezoidal groove, and the middle of the second trapezoidal groove has a communicating second slot; the bottom of the inner walls at both ends of the first corner seats has a communicating bottom plate groove; the plurality of first corner seats are symmetrically arranged at equal intervals and form the four corners of the frame; the plurality of adjustable seats are all rectangular; and each of the plurality of adjustable seats has the same side plate as the first corner seats. The first corner seat has a groove, a first trapezoidal groove, and a first slot. Several adjustable seats are provided with the same second trapezoidal groove, second slot, and bottom plate groove as the first corner seat. Several adjustable seats are detachably connected between the two ends of the first corner seat, and the thickness and height of the adjustable seats are the same as the first corner seat. Several first locking blocks are movably embedded in the second trapezoidal grooves of the first corner seat and the adjustable seat. Several first locking blocks are trapezoidal and have countersunk threaded holes in the middle. Several first bolts are screwed into the countersunk threaded holes in the middle of the first locking blocks, and the first bolts communicate with the second slots. Several first connecting rods are movably inserted into the second slots between the first corner seat and the adjustable seat at both ends. Several first connecting rods are tightened and fixed by the first bolts on the first locking blocks. The bottom of the box is detachably inserted into the bottom plate groove.

[0006] Preferably, the side blocking structure includes a plurality of second locking blocks, a plurality of second bolts, a plurality of second connecting rods, a plurality of side baffles, and a door body; the plurality of second locking blocks are all trapezoidal, and the plurality of second locking blocks are respectively movably embedded in the first trapezoidal grooves of the first corner seat and the adjusting seat; the plurality of second bolts are respectively countersunk through the middle of the second locking blocks, and the second bolts are connected to the first slot; the plurality of second connecting rods are detachably inserted into the first slot and are tightened and fixed by the second bolts; the bottom of the plurality of side baffles are respectively detachably inserted into the side plate grooves and are tightened and fixed by the second bolts; the plurality of side baffles are respectively sequentially fitted and joined together; the door body is movably embedded in the middle of one of the side baffles, and the door body is provided with corresponding door locks and ventilation holes; the top of the plurality of side baffles can be provided with L-shaped slots.

[0007] Preferably, the capping structure includes a pair of lifting components, a drive unit, and a top plate; the pair of lifting components are symmetrically and detachably mounted on the top of the side baffle and located at the slot, the drive unit is fixedly mounted on the lifting components, and the top plate is fixedly mounted between the pair of lifting components and can be snapped onto the top of the side baffle.

[0008] Preferably, the lifting assembly includes a hanging plate, several third bolts, a bearing seat, a pair of cross links, two pairs of slide rails, two pairs of slide blocks, and a pair of adapter seats; one end of the hanging plate is detachably fastened to a slot, several third bolts are respectively screwed onto one end of the hanging plate, and the third bolts are pressed against the side baffle; one end of the bearing seat is fixedly mounted on the other end of the hanging plate, and the bearing seat is located below the top of the side baffle; the bottom left end of the pair of cross links is movably connected to the bearing seat; the two pairs of slide rails are symmetrically arranged at the front and rear ends of the bearing seat and above the cross links, and the slide rails correspond to the cross links; one end of each pair of slide blocks is movably inserted into the slide rail, and the other end of each slide block is connected to the upper and lower right ends of the cross links; one end of each pair of adapter seats is movably connected to the top left end of the cross links.

[0009] Preferably, the drive unit includes a motor, a bearing, a lead screw, a crank handle, a pair of connecting arms, and a temperature detector; the motor is fixedly mounted in the middle of the left end of the support seat and located between the cross links; one end of the bearing is fixedly mounted in the middle of the right end of the support seat; one end of the lead screw is fixedly connected to the motor drive end, and the other end of the lead screw movably passes through the bearing; the crank handle is Z-shaped, one end of the crank handle is fixedly connected to the other end of the lead screw, and the crank handle is located on the right side of the support seat; the two ends of the pair of connecting arms are respectively fixedly connected between the slides, and one of the connecting arms is screwed onto the lead screw; the temperature detector is fixedly mounted on the lower right wall of the support seat.

[0010] Preferably, the top plate is fixedly connected to one of a pair of sliding blocks and one of a pair of adapter blocks, and the top plate can be raised in an alternating manner through cross linkages.

[0011] Preferably, the mounting plate can also be connected to the top of the side baffle via an L-shaped bracket, thus eliminating the need for a slot in the side baffle.

[0012] Preferably, the second bolt can be directly tightened and fixed to the side baffle, and a second connecting rod can be inserted between the second bolt and the side baffle to tighten and fix them together.

[0013] Preferably, the first corner seat can also be configured as a T-shaped second corner seat, and the same corresponding slot is opened, so that the T-shape facilitates the assembly of multiple compartments.

[0014] Compared with existing technologies, this solution achieves detachability and convenient assembly, which is beneficial for transportation and installation. Adjustable seats can be cut to fit actual size requirements, thereby adjusting the fixed frame size of the bottom sealing structure. This allows for the prefabrication of side baffle structures of the corresponding size, or the side baffles can be cut and adjusted for installation. Furthermore, the L-shaped first corner seat can be replaced with a T-shaped second corner seat, enabling the combination and splicing of multiple compartments. The top of the equipment features a detachable and temperature-controlled sealing structure, facilitating on-site assembly. Temperature sensors control the lifting components and drive unit to raise and lower the top plate, increasing the overall heat dissipation area during use and utilizing the rising of hot air for rapid, autonomous heat dissipation. The lifting components can also be assembled using mounting brackets, improving overall installation applicability. All connections are secured by the mutual locking of the first and second bolts with the first and second connecting rods, eliminating the need for additional holes. 1. This invention adopts a fully modular and detachable structure. The bottom structure, side barrier structure and top structure can all be separated for transportation, which can reduce the transportation volume of a single piece and reduce transportation difficulty and logistics costs. On-site assembly can be completed by slot insertion and bolt tightening, without welding operations and additional drilling. The assembly process is simple and can shorten the on-site installation cycle.

[0015] 2. The cabinet size of the present invention can be flexibly adjusted. By replacing or cutting the adjustable seat, the length and width of the bottom frame can be changed. With the corresponding side baffle, it can be adapted to the usage requirements of different power distribution capacities and different installation sites. At the same time, it supports the expansion of multiple cabinets by means of T-shaped second corner seat, which improves the product's universal adaptability.

[0016] 3. This invention has an adaptive heat dissipation function. The temperature inside the chamber is collected in real time by a temperature detector, and the lifting component is automatically driven to raise and lower the top plate, dynamically adjusting the ventilation gap at the top of the chamber: when the temperature rises, the top plate is raised, and the heat inside the chamber is discharged faster by taking advantage of the rising effect of hot air; when the temperature drops, the top plate is closed and sealed to prevent external dust, rainwater and moisture from entering, forming a dynamic balance between heat dissipation and protection, which is more in line with actual operating conditions than a fixed ventilation structure.

[0017] 4. The lifting and cooling mechanism of the present invention is equipped with both electric and manual drive modes. During normal operation, the motor realizes automatic temperature control and regulation. In special working conditions such as power failure or electrical fault, the top plate can be lifted and lowered by manually cranking the screw, ensuring the cooling function is available. Ventilation can also be manually turned on during installation and maintenance to improve the working environment inside the box, thereby improving the reliability and safety of equipment operation.

[0018] 5. The present invention adopts a limiting connection structure with trapezoidal groove and trapezoidal locking block, and uses bolts to tighten the components to achieve accurate positioning and good connection rigidity, and is not easy to loosen during operation; each functional component is an independent detachable structure, and a single component can be replaced individually if damaged, without the need to disassemble the whole box, which facilitates later maintenance and repair. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly structure of the present invention; Figure 2 This is a schematic diagram of the disassembled bottom cover structure of the present invention; Figure 3 This is a schematic diagram of the disassembled side guard structure of the present invention; Figure 4 This is a schematic diagram of the disassembled capping structure of the present invention; Figure 5 This is a diagram illustrating the capping structure of the present invention; Figure 6 This is a schematic diagram of the assembly structure of the side guard structure and the top cover structure of the present invention; Figure 7 This is a schematic diagram of the assembly structure of the bottom sealing structure and the side guard structure of the present invention; Figure 8 This is a schematic diagram showing the structure of the second corner seat and the hanging seat of the present invention; Figure 9 for Figure 2 Enlarged view of section A in the image; Figure 10 for Figure 2 Enlarged view of section B in the image; Figure 11 for Figure 2 Enlarged view of section C in the image; Figure 12 for Figure 3 A magnified view of section D in the image.

[0020] In the diagram: 1. Bottom sealing structure; 11. First corner seat; 12. Adjustable distance seat; 13. First locking block; 14. First bolt; 15. First connecting rod; 16. Box bottom; 2. Side baffle structure; 21. Second locking block; 22. Second bolt; 23. Second connecting rod; 24. Side baffle; 25. Door body; 3. Top sealing structure; 31. Lifting assembly; 311. Hanging plate; 312. Third bolt; 313. Bearing seat; 314. Cross link. 315. Slide rail; 316. Slide seat; 317. Adapter seat; 32. Drive unit; 321. Motor; 322. Shaft seat; 323. Lead screw; 324. Handle; 325. Linkage arm; 326. Temperature detector; 33. Top plate; 4. Side plate groove; 5. Bottom plate groove; 61. First trapezoidal groove; 62. First slot; 63. Second trapezoidal groove; 64. Second slot; 7. Slot; 8. Second corner seat; 9. Hanger. Detailed Implementation

[0021] The following will refer to the appendices in the embodiments of the present invention. Figures 1-11 For further details: like Figure 1 As shown, the present invention provides a technical solution: a self-heating prefabricated box-type substation, including a bottom sealing structure 1, a side baffle structure 2 detachably installed on the bottom sealing structure 1, and a bottom sealing structure 1 detachably installed on the top of the side baffle structure 2 to achieve symmetrical fixed installation, and a top sealing structure 3 detachably installed on the top of the side baffle structure 2, and the top sealing structure 3 can also be set on the bottom sealing structure 1; the bottom sealing structure 1 is used to adjust according to the actual size to achieve a frame structure that is easy to assemble and to facilitate the installation of the side baffle structure 2, thereby fixing the side baffle structure 2 and forming a box; the top sealing structure 3 is used to fasten the top of the side baffle structure 2 and can achieve self-adaptive heat dissipation.

[0022] As shown in Figure 2, as a preferred embodiment, the bottom sealing structure 1 further includes several first corner seats 11, several adjustable seats 12, several first locking blocks 13, several first bolts 14, several first connecting rods 15, and a box bottom 16; the first corner seats 11 are L-shaped, and both ends of the upper wall of the first corner seats 11 are provided with connected L-shaped side plate grooves 4, both ends of the inner side walls of the first corner seats 11 are provided with first trapezoidal grooves 61 corresponding to the side plate grooves 4, the middle of the first trapezoidal grooves 61 is provided with a first slot 62 communicating with the side plate grooves 4, the middle of both ends of the inner side walls of the first corner seats 11 is provided with second trapezoidal grooves 63, and the middle of the second trapezoidal grooves 63 is provided with a connected second slot 64. Both ends of the base 11 have interconnected bottom plate grooves 5 on their inner sidewalls. Several first corner bases 11 are symmetrically arranged at equal intervals, forming the four corners of the frame. Several adjustable bases 12 are rectangular, and each adjustable base 12 has the same side plate groove 4, first trapezoidal groove 61, and first slot 62 as the first corner base 11. Each adjustable base 12 also has the same second trapezoidal groove 63, second slot 64, and bottom plate groove 5 as the first corner base 11. Several adjustable bases 12 are detachably connected between the two ends of the first corner base 11, and the thickness and height of the adjustable bases 12 are the same as those of the first corner base 11. Several first locking blocks 13 are movably embedded in the first corner base 11 and the adjustable base 11. Within the second trapezoidal groove 63 of plate 2, several first locking blocks 13 are trapezoidal, each with a countersunk threaded hole in the center. Several first bolts 14 are screwed into the countersunk threaded holes in the center of the first locking blocks 13, and the first bolts 14 are connected to the second slot 64. Several first connecting rods 15 are movably inserted into the second slot 64 between the first corner seat 11 and the adjusting seat 12. Several first connecting rods 15 are tightened and fixed by the first bolts 14 on the first locking blocks 13. The bottom of the box 16 is detachably inserted into the bottom plate groove 5. By symmetrically arranging multiple sets of L-shaped first corner seats 11 at the four corners to form a frame foundation, a rectangular adjusting seat 1 of corresponding length is selected according to the box size required on site. 2. Install the adjustable seat 12 between two adjacent first corner seats 11. Since the adjustable seat 12 and the first corner seat 11 have the same thickness and height and the same groove structure, after they are connected, the side plate grooves 4, the first trapezoidal groove 61, the first slot 62, the second trapezoidal groove 63, the second slot 64 and the bottom plate groove 5 are aligned and connected in sequence. Then, insert the first connecting rod 15 into the interconnected second slot 64, and then insert the trapezoidal first locking block 13 into the second trapezoidal groove 63. Tighten the first bolt 14 on the first locking block 13 to tighten the first connecting rod 15, so that the first corner seat 11 and the adjustable seat 12 form a rigid locking and positioning, ensuring that the overall frame is not loose or displaced.Finally, insert the bottom 16 of the box into the connected bottom plate groove 5 from the side to complete the installation and fixation of the bottom 16. This assembles a complete bottom sealing frame with flexible adjustable dimensions. The entire assembly process relies on groove insertion and locking blocks with bolt tightening to achieve connection, without the need for welding or additional drilling.

[0023] More specifically, the combined frame design of the first corner seat 11 and the adjustable seat 12 allows for flexible changes in the overall frame specifications by replacing or cutting the adjustable seat 12, adapting to the needs of different sized enclosures. The modular plug-in and bolt-tightening connection method is simple to disassemble and assemble, with high assembly efficiency. At the same time, the overall connection is firm and the structure is stable. The detachable bottom 16 also facilitates later inspection and maintenance. The unified trough structure also ensures precise docking with the upper side baffle structure 2, effectively improving the overall assembly versatility and site adaptability of the equipment.

[0024] like Figure 3 and Figure 7 As shown, as a preferred embodiment, the side barrier structure 2 further includes several second locking blocks 21, several second bolts 22, several second connecting rods 23, several side baffles 24, and a door body 25; the several second locking blocks 21 are all trapezoidal, and the several second locking blocks 21 are respectively movably embedded in the first trapezoidal grooves 61 of the first corner seat 11 and the adjusting seat 12; the several second bolts 22 are respectively countersunk through the middle of the second locking blocks 21, and the second bolts 22 are connected to the first slot 62; the several second connecting rods 23 are detachably inserted into the first slot 62 and are tightened and fixed by the second bolts 22; the bottom of the several side baffles 24 are respectively detachably inserted into the side plate grooves 4 and are tightened and fixed by the second bolts 22; the several side baffles 24 are respectively sequentially fitted together; the door body 25 is movably embedded in the middle of one of the side baffles 24, and the door body 25 is provided with corresponding door locks and ventilation holes; the top of the several side baffles 24 can be provided with L-shaped slots 7; by... The trapezoidal second locking block 21 is embedded into the first trapezoidal groove 61 on the first corner seat 11 and the adjusting seat 12 of the bottom sealing structure 1. Then, the second connecting rod 23 is inserted into the connected first slot 62, and the bottom of the side baffle 24 is inserted into the side plate groove 4 of the first corner seat 11 and the adjusting seat 12. Then, the countersunk second bolt 22 that passes through the second locking block 21 is rotated, and the second bolt 22 tightens the second connecting rod 23 and the side baffle 24, realizing the reliable positioning of the bottom of the side baffle 24. Fastening; multiple side panels 24 are sequentially and tightly joined together to form a continuous side wall. A door 25 with a lock and ventilation holes is embedded in the middle of one of the side panels 24 to complete the assembly of the box side wall. According to the installation requirements of the top structure 3, L-shaped slots 7 can be processed on the top of each side panel 24 as the installation points of the subsequent lifting components 31. The two ends of the side panels 24 are respectively located in two or more adjustable seats 12 and the first corner seat 11 to achieve auxiliary connection and fixation of two pairs.

[0025] More specifically, the second locking block 21, the second bolt 22 and the second connecting rod 23 are used to tighten the structure and achieve quick assembly and fixation with the bottom sealing structure 1. The assembly operation is simple and the connection is stable. The whole structure is detachable, which is convenient for disassembly, transportation and later maintenance. The side baffles 24 can be flexibly spliced ​​and combined to adapt to different specifications of bottom sealing frames. The integrated door 25 has the functions of opening and closing for maintenance, sealing protection and basic ventilation. The L-shaped slot 7 reserved at the top also provides a standardized installation position for the top sealing structure 3. The overall structural compatibility and practicality are greatly improved.

[0026] like Figure 4 and Figure 6 As shown, as a preferred embodiment, the capping structure 3 further includes a pair of lifting components 31, a drive unit 32, and a top plate 33; the pair of lifting components 31 are symmetrically and detachably mounted on the top of the side baffle 24 and located at the slot 7; the drive unit 32 is fixedly mounted on the lifting components 31; the top plate 33 is fixedly mounted between the pair of lifting components 31 and can be snapped onto the top of the side baffle 24; by symmetrically installing the two sets of lifting components 31 at the L-shaped slot 7 position on the top of the side baffle 24 and fixing them, the drive unit 32 is... The entire assembly is fixed on the lifting component 31, and then the top plate 33 is placed between the two lifting components 31 and connected, so that the top plate 33 is fastened to the top of the side baffle 24 to form the top cover of the box. During operation, the drive unit 32 receives the temperature detection signal and outputs power to drive the lifting components 31 on both sides to move synchronously. The lifting components 31 drive the top plate 33 to rise or fall as a whole, thereby changing the gap between the top plate 33 and the top of the side baffle 24. By changing the gap, the ventilation on / off and ventilation area can be adjusted to complete the switching of heat dissipation conditions.

[0027] More specifically, through modular assembly, it is easy to disassemble and assemble, and has high assembly efficiency. Relying on the lifting component 31 and the drive unit 32, the top plate 33 can be automatically raised and lowered. By using the gap change, the heat dissipation and ventilation volume can be dynamically adjusted to achieve temperature control and adaptive heat dissipation. At the same time, the top plate 33 can be completely locked and sealed to the top of the box, taking into account the needs of heat dissipation, dust prevention, and moisture protection. The overall structure is compact, reliable in operation, and highly compatible with the side baffle structure 2.

[0028] like Figure 5As shown, as a preferred embodiment, the lifting assembly 31 further includes a mounting plate 311, several third bolts 312, a bearing seat 313, a pair of cross links 314, two pairs of slide rails 315, two pairs of slide blocks 316, and a pair of adapter seats 317; one end of the mounting plate 311 is detachably fastened to the slot 7, several third bolts 312 are respectively screwed onto one end of the mounting plate 311, and the third bolts 312 are tightened against the side baffle 24; one end of the bearing seat 313 is fixedly mounted on the other end of the mounting plate 311, and the bearing seat 313 is located on the side baffle 24. Below the top of the baffle 24, a pair of cross links 314 have their bottom left ends movably connected to the support seat 313. Two pairs of slide rails 315 are symmetrically arranged at the front and rear ends of the support seat 313 and above the cross links 314, with each slide rail 315 corresponding to one of the cross links 314. One end of each pair of slide blocks 316 is movably inserted into the slide rail 315, and the other end of each slide block 316 is connected to the upper and lower right ends of the cross links 314. One end of each pair of adapter seats 317 is movably connected to the top left side of the cross links 314. One end of the hanging plate 311 is fastened into the L-shaped slot 7 at the top of the side baffle 24, and multiple third bolts 312 are tightened so that the ends of the bolts press against the side baffle 24, thus firmly fixing the hanging plate 311; the other end of the hanging plate 311 is connected to the bearing seat 313, so that the bearing seat 313 is suspended below the top of the side baffle 24; the bottom left end of a pair of cross connecting rods 314 is hinged to the bearing seat 313, and two pairs of slide rails 315 are arranged correspondingly at the front and rear ends of the bearing seat 313 and above the cross connecting rods 314, and one end of each pair of slide rails 316 is respectively The sliding assembly is installed inside the slide rail 315. The other end of the slide block 316 is hinged to the upper and lower ends of the right side of the cross link 314. A pair of adapter seats 317 are then hinged to the top left side of the cross link 314. During operation, external power pushes the slide block 316 to slide linearly along the slide rail 315, causing the cross link 314 to swing alternately. Relying on the scissor drive structure composed of the cross link 314, the slide block 316, and the slide rail 315, the adapter seats 317 are driven to rise and fall synchronously, thereby driving the top plate 33 connected to it to complete the lifting and lowering actions.

[0029] More specifically, quick assembly and disassembly are achieved by tightening the hanging plate 311 with the third bolt 312, making installation and positioning simple and the connection reliable; relying on the cross link 314, slide rail 315 and slide block 316 to form a scissor transmission mechanism, the transmission structure is simple, the mechanical failure rate is low, the lifting operation is smooth, and it can stably drive the top plate 33 to complete the height adjustment. The overall structure is compact and can adapt to the lifting action requirements under different working conditions. At the same time, the modular design also facilitates individual maintenance and parts replacement.

[0030] As a preferred embodiment, the drive unit 32 further includes a motor 321, a bearing 322, a lead screw 323, a crank 324, a pair of connecting arms 325, and a temperature detector 326. The motor 321 is fixedly mounted on the left side of the support 313, between the cross links 314. One end of the bearing 322 is fixedly mounted on the right side of the support 313. One end of the lead screw 323 is fixedly connected to the drive end of the motor 321, and the other end of the lead screw 323 movably passes through the bearing 322. The crank 324 is Z-shaped, with one end fixedly connected to the other end of the lead screw 323, and is located on the right side of the support 313. The pair of connecting arms 324... The two ends of the 25 are fixedly connected to the slide 316 respectively. One of the connecting arms 325 is screwed onto the screw 323. The temperature detector 326 is fixedly installed on the lower right wall of the bearing seat 313. The temperature signal inside the box is collected in real time by the temperature detector 326. When the temperature reaches the set threshold, the motor 321 starts and drives the screw 323 to rotate. The screw drives the connecting arm 325 to move along the screw axis through the screw drive, thereby driving the slide 316 to slide in the slide 315, providing power for the lifting assembly 31. When the motor 321 loses power or malfunctions, the Z-shaped crank 324 can be manually rotated to drive the screw 323 to operate, realizing the emergency operation of lifting the top plate 33.

[0031] More specifically, through temperature detection, electric drive and manual emergency control functions, the screw 323 and connecting arm 325 work together to achieve stable power output, precise transmission and stable operation; the temperature detector 326 can sense the internal temperature in real time and realize the automatic start and stop of the heat dissipation mechanism without manual intervention; the addition of a manual crank 324 can be used normally when the electrical system fails or when power is cut off for maintenance, improving the reliability and fault tolerance of the equipment operation. The overall layout is compact and closely connected with the lifting component 31, making installation, debugging and subsequent maintenance relatively convenient.

[0032] As a preferred option, the top plate 33 is further fixedly connected to one of the pairs of slides 316 and one of the pairs of adapters 317, and the top plate 33 can be raised in an alternating manner through the cross linkages 314; the hanging plate 311 can also be connected to the top of the side baffle 24 through the L-shaped hanging seat 9, so that the side baffle 24 does not need to have a slot 7.

[0033] As a preferred option, the second bolt 22 can be directly tightened and fixed to the side baffle 24, and the second connecting rod 23 can be inserted between the second bolt 22 and the side baffle 24 to tighten and fix each other; the first corner seat 11 can also be configured as a T-shaped second corner seat 8, and the same corresponding slot is opened, and the T-shape facilitates the assembly of multiple compartments.

[0034] Working principle: Step 1: Assemble the bottom sealing structure 1 and build the equipment foundation frame: Multiple sets of first corner seats 11 are selected and symmetrically arranged at the four corners as the frame reference. The side plate grooves 4, first trapezoidal grooves 61, first slots 62, second trapezoidal grooves 63, second slots 64, and bottom plate grooves 5 on the first corner seats 11 are all placed in a corresponding manner to form a connecting channel. According to the on-site size requirements, several adjustable seats 12 are installed between two adjacent sets of first corner seats 11. Since the adjustable seats 12 and the first corner seats 11 have the same groove, thickness and height, all channels are aligned and connected in sequence after docking. Insert the first connecting rod 15 into the interconnected second slot 64, and then embed the trapezoidal first locking block 13 into the second trapezoidal slot 63; Then tighten the first bolt 14, which presses against the first connecting rod 15, locking the first corner seat 11 and the adjusting seat 12 to form a stable rectangular frame; the L-shaped first corner seat 11 can also be replaced with the second corner seat 8 to achieve multi-compartment splicing; finally, the bottom of the box 16 is inserted into the connected bottom plate groove 5 from the side to complete the overall assembly of the bottom sealing structure 1. Step 2: Assemble side baffle structure 2 and build the side wall of the box: The trapezoidal second locking block 21 is sequentially embedded into the first trapezoidal groove 61 of the bottom sealing structure 1, and the second connecting rod 23 is inserted into the communicating first slot 62; the bottom of the multiple side baffles 24 is inserted into the corresponding side plate grooves 4, and the second bolt 22 that passes through the second locking block 21 is rotated, and the second bolt 22 simultaneously tightens the second connecting rod 23 and the side baffles 24, so that the bottom of the side baffles 24 is firmly fixed. Multiple side panels 24 are connected tightly in sequence, and a door 25 is embedded in the middle of one of the side panels 24. The door 25 has a door lock and ventilation holes to realize maintenance and basic ventilation. A slot 7 is machined and opened on the top of the side panel 24 as the installation position of the subsequent capping structure 3. At this point, the side panel structure 2 is assembled. Step 3: Assemble lifting assembly 31 and install the top lifting transmission mechanism: Take the hanging plate 311 and fasten one end of it into the slot 7 at the top of the side baffle 24; it can also be installed with the hanging bracket 9 without opening the slot 7, which improves the adaptability; tighten several third bolts 312 so that the ends of the third bolts 312 press against the side baffle 24 to completely fix the hanging plate 311. The other end of the hanging plate 311 is fixed to the bearing seat 313, so that the bearing seat 313 is suspended below the top of the side baffle 24; the bottom left end of a pair of cross links 314 is hinged to the bearing seat 313; two pairs of slide rails 315 are symmetrically arranged above the bearing seat 313 and the cross links 314, and one end of the two pairs of slide blocks 316 is slidably assembled in the slide rails 315, and the other end of the slide blocks 316 is hinged to the upper and lower ends of the right side of the cross links 314. A pair of adapter seats 317 are hinged to the top left side of the cross link 314, and a single lifting assembly 31 is assembled. Two lifting assemblies 31 are symmetrically arranged on both sides of the box. Step 4: Assemble the drive unit 32 and the top plate 33 to complete the overall assembly of the capping structure 3. A motor 321 is fixedly installed at the middle of the left end of the bearing seat 313, between two sets of cross connecting rods 314, and a bearing seat 322 is fixed at the middle of the right end of the bearing seat 313. One end of the screw 323 is connected to the drive end of the motor 321, and the other end movably passes through the bearing seat 322. A Z-shaped crank handle 324 is fixedly installed at the right end of the screw 323 that extends out of the bearing seat 322. The two ends of a pair of connecting arms 325 are fixedly connected to the two side slides 316 respectively, and one of the connecting arms 325 is threaded onto the screw 323. A temperature detector 326 is fixedly installed on the lower right wall of the bearing seat 313, thus completing the assembly of the drive unit 32. Finally, the top plate 33 is fixed on the slide 316 and the adapter 317 of the lifting components 31 on both sides, so that the top plate 33 is naturally fastened to the top of the side baffle 24. The top structure 3 is assembled and the whole equipment is assembled. Step 5: Equipment Operating Principle and Adaptive Heat Dissipation Conditions When the equipment is running normally, the temperature detector 326 monitors the ambient temperature inside the chamber in real time and continuously feeds back the temperature signal; when the temperature inside the chamber rises to the set threshold, the motor 321 receives the signal and starts, driving the screw 323 to rotate synchronously; the screw 323 drives the threaded connecting arm 325 to move axially, and the slide block 316 slides along the slide rail 315. The movement of the slide block 316 causes the cross linkage 314 to swing alternately, and the top plate 33 is raised synchronously through the adapter 317. The top plate 33 and the top of the side baffle 24 form a ventilation gap, which uses the principle of hot air rising to quickly expel the heat in the box and achieve active heat dissipation. When the temperature in the box drops back to the normal range, the motor 321 rotates in reverse, driving the top plate 33 to descend and reset, resealing the top of the box and preventing rainwater, dust and moisture from entering. In case of power failure, motor 321 failure, or other electrical malfunctions, the crank handle 324 can be manually turned to directly drive the screw 323 to operate, and the top plate 33 can be manually raised and lowered to ensure normal use of the heat dissipation function. Especially in hot areas, the internal temperature of the cabinet is high during installation and maintenance, which can easily cause heatstroke and dizziness. Therefore, the lifting component 31 can be manually started without power to improve internal ventilation and heat dissipation.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A self-heating prefabricated box-type substation, characterized in that, Includes a bottom sealing structure (1), on which a side baffle structure (2) is detachably installed, and the top of the side baffle structure (2) is also detachably installed with the bottom sealing structure (1) to achieve symmetrical fixed setting. The top of the side baffle structure (2) is detachably installed with a top sealing structure (3), and the top sealing structure (3) can also be set on the bottom sealing structure (1). The bottom sealing structure (1) is used to adjust according to the actual size to realize a frame structure that is easy to assemble and a side baffle structure (2) that is easy to install, so as to fix the side baffle structure (2) and form a box. The top sealing structure (3) is used to fasten the top of the side baffle structure (2) and can realize adaptive heat dissipation.

2. The self-heating prefabricated box-type substation according to claim 1, characterized in that, The bottom sealing structure (1) includes several first corner seats (11), several adjustable seats (12), several first locking blocks (13), several first bolts (14), several first connecting rods (15), and box bottom (16). The first corner seat (11) is L-shaped, and both ends of the upper wall of the first corner seat (11) are provided with L-shaped side plate grooves (4) that are connected. Both ends of the inner side wall of the first corner seat (11) are provided with first trapezoidal grooves (61) that correspond to the side plate grooves (4). The middle of the first trapezoidal groove (61) is provided with a first slot (62) that is connected to the side plate groove (4). The middle of the inner side wall of both ends of the first corner seat (11) is provided with a second trapezoidal groove (63), and the middle of the second trapezoidal groove (63) is provided with a connecting... The second slot (64) is open, and the bottom of the inner sidewalls of both ends of the first corner seat (11) are provided with a connecting bottom plate groove (5). Several first corner seats (11) are symmetrically arranged at equal intervals and form the four corners of the frame. Several adjustable seats (12) are rectangular. Several adjustable seats (12) are provided with the same side plate groove (4), first trapezoidal groove (61) and first slot (62) as the first corner seat (11). Several adjustable seats (12) are provided with the same side plate groove (4), first trapezoidal groove (61) and first slot (62) as the first corner seat (11). The same second trapezoidal groove (63), second slot (64), and base plate groove (5) are used. Several of the adjustable seats (12) are detachably connected between the two ends of the first corner seat (11), and the thickness and height of the adjustable seats (12) are the same as those of the first corner seat (11). Several first locking blocks (13) are movably embedded in the second trapezoidal groove (63) of the first corner seat (11) and the adjustable seat (12). Several first locking blocks (13) are all trapezoidal, and each has a countersunk threaded hole in the middle. Several first bolts (14) are screwed into the countersunk threaded holes in the middle of the first locking block (13), and the first bolts (14) are connected to the second slot (64). Several first connecting rods (15) are movably inserted into the second slot (64) between the first corner seat (11) and the adjusting seat (12). Several first connecting rods (15) are tightened and fixed by the first bolts (14) on the first locking block (13). The bottom of the box (16) is detachably inserted into the bottom plate groove (5).

3. A self-heating prefabricated box-type substation according to claim 2, characterized in that, The side baffle structure (2) includes several second locking blocks (21), several second bolts (22), several second connecting rods (23), several side baffles (24), and a door body (25); Several second lock blocks (21) are trapezoidal. Several second lock blocks (21) are movably embedded in the first trapezoidal groove (61) of the first corner seat (11) and the adjusting seat (12). Several second bolts (22) are countersunk through the middle of the second lock blocks (21) and are connected to the first slot (62). Several second connecting rods (23) are detachably inserted into the first slot (62) and are fixed by the second bolts (22). Several side baffles (24) are detachably inserted into the side plate groove (4) and are fixed by the second bolts (22). Several side baffles (24) are sequentially fitted together. The door body (25) is movably embedded in the middle of one of the side baffles (24) and is provided with a corresponding door lock and ventilation hole. Several side baffles (24) can be provided with an L-shaped slot (7) at the top.

4. A self-heating prefabricated box-type substation according to claim 3, characterized in that, The capping structure (3) includes a pair of lifting components (31), a drive unit (32), and a top plate (33); A pair of lifting components (31) are symmetrically and detachably mounted on the top of the side baffle (24) and located in the slot (7). The drive unit (32) is fixedly mounted on the lifting components (31). The top plate (33) is fixedly mounted between the pair of lifting components (31) and can be snapped onto the top of the side baffle (24).

5. A self-heating prefabricated box-type substation according to claim 4, characterized in that, The lifting assembly (31) includes a mounting plate (311), several third bolts (312), a bearing seat (313), a pair of cross links (314), two pairs of slide rails (315), two pairs of slide blocks (316), and a pair of adapter seats (317). One end of the hanging plate (311) is detachably fastened to the slot (7). Several third bolts (312) are screwed onto one end of the hanging plate (311) and are tightened against the side baffle (24). One end of the bearing seat (313) is fixedly mounted on the other end of the hanging plate (311) and is located below the top of the side baffle (24). The bottom left ends of a pair of cross rods (314) are movably connected to the bearing seat (313). Two pairs of slide rails (315) are symmetrically arranged at the front and rear ends of the bearing seat (313) and above the cross link (314), and the slide rails (315) correspond to the cross link (314). One end of each pair of slide seats (316) is movably inserted into the slide rail (315), and the other end of the slide seats (316) is connected to the upper and lower ends of the right side of the cross link (314). One end of each pair of adapter seats (317) is movably connected to the top left side of the cross link (314).

6. A self-heating prefabricated box-type substation according to claim 5, characterized in that, The drive unit (32) includes a motor (321), a bearing (322), a lead screw (323), a crank (324), a pair of connecting arms (325), and a temperature detector (326). The motor (321) is fixedly installed at the middle of the left end of the bearing seat (313) and located between the cross links (314). One end of the bearing seat (322) is fixedly installed at the middle of the right end of the bearing seat (313). One end of the screw (323) is fixedly connected to the drive end of the motor (321), and the other end of the screw (323) moves through the bearing seat (322). The crank handle (324) is Z-shaped. One end of the crank handle (324) is fixedly connected to the other end of the screw (323), and the crank handle (324) is located on the right side of the bearing seat (313). The two ends of a pair of connecting arms (325) are fixedly connected between the slides (316), and one of the connecting arms (325) is screwed onto the screw (323). The temperature detector (326) is fixedly installed on the lower right wall of the bearing seat (313).

7. A self-heating prefabricated box-type substation according to claim 6, characterized in that, The top plate (33) is fixedly connected to a pair of slides (316) and a pair of adapters (317), and the top plate (33) can be raised in an alternating manner through cross links (314).

8. A self-heating prefabricated box-type substation according to claim 7, characterized in that, The mounting plate (311) can also be connected to the top of the side baffle (24) via an L-shaped bracket (9), thus eliminating the need for the side baffle (24) to have a slot (7).

9. A self-heating prefabricated box-type substation according to claim 8, characterized in that, The second bolt (22) can be directly tightened and fixed to the side baffle (24), and the second connecting rod (23) can be inserted between the second bolt (22) and the side baffle (24) to tighten and fix each other.

10. A self-heating prefabricated box-type substation according to claim 9, characterized in that, The first corner seat (11) can also be configured as a T-shaped second corner seat (8), and the same corresponding slot is opened. The T-shape facilitates the assembly of multiple compartments.

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